WO2017133062A1

WO2017133062A1 - Electrical water heating device

Info

Publication number: WO2017133062A1
Application number: PCT/CN2016/077110
Authority: WO
Inventors: 曾繁广
Original assignee: 曾繁广
Priority date: 2016-02-02
Filing date: 2016-03-23
Publication date: 2017-08-10
Also published as: CN105496215A

Abstract

Disclosed is an electrical water heating device, comprising a water inlet pipe (111), a barrel body (104), a barrel cap (110), a base (108), a heater (109), an upper water level controller (101) and a lower water level controller (102). The barrel body (104) comprises a liner (114) and a housing (113). A heating controller (106') and a heat insulating controller (105'), or a heating and heat insulating controller (106) and a heat insulating inductor (105), are arranged within the housing (113) or the base (108). The upper water level controller (101) and the lower water level controller (102) are both electrically connected to a water inlet controller (112) of the water inlet pipe (111). Water supply of the water inlet pipe (111) is controlled by the water inlet controller (112) so as to realize automatic water supply to the device. Each of the heating controller (106') and the heat insulating controller (105') is electrically connected to a temperature inductor (103) and the heater (109). The heating and heat insulating controller (106) is electrically connected to the heat insulating inductor (105), the temperature inductor (103) and the heater (109), respectively. In this way, effective heating to boiling and heat insulating at suitable temperatures can be realized, energy is saved, and harm to the human body by repeatedly boiled water can be avoided.

Description

Electric heating water device

Technical field

The present invention relates to the field of heating equipment, and in particular to an electric heating water apparatus.

Background technique

The device for electrically heating water is a water-burning tool, which uses the heat generated by self-energization to heat the water inside the body, and since it can provide hot water to people more quickly and conveniently, it has become a daily life. One of the essential household appliances.

In the prior art, there has been much research on a device for heating water.

For example, in the prior art (CN2922721Y, published day: July 18, 2007), an electric kettle is disclosed, which comprises a heat-resistant ceramic pot body, an electric heating seat that covers the bottom of the kettle body, and is disposed at the bottom of the kettle body. Electric wire.

Similarly, in the prior art (CN200973622Y, published day: November 14, 2007), an electric kettle is also disclosed which comprises a plastic body and a stainless steel inner tank double-layered body.

However, the heater disclosed in the prior art must manually observe the amount of water in the heater and manually add water, and the device itself cannot automatically add water by induction. At the same time, the heater in the prior art cannot be controlled. If the water temperature is cold, it can only be repeatedly heated to boiling, so that not only energy is wasted, but also heavy metal components such as calcium and magnesium in the water and non-decomposed after being boiled for a long time. The content of nitrite is very high, this kind of water will affect the gastrointestinal function of human beings; at the same time, the toxic nitrite will also cause the body to lack oxygen, which will bring harm to people's lives.

Therefore, it is necessary to invent a new type of device for electrically heating water, so as to avoid repeated observations of the complicated labor of adding water, and also to control the process of heating and heating and the heating temperature, thereby avoiding the hazard caused by repeated heating and boiling.

In view of this, the present invention has been specifically proposed.

Summary of the invention

A first object of the present invention is to provide an electric heating water device to solve the technical problem that the electric kettle needs to be manually observed for water addition in the prior art, and can only be heated by repeated boiling. The device can adjust the automatic watering by the water level controller, and adjust the heating and heat preservation process through the temperature control, thereby having the advantages of convenient use, effective heat preservation and energy conservation.

In order to achieve the above object of the present invention, the following technical solutions are adopted:

An electric heating water device, the device comprising a barrel body, a bucket cover, a base and a heater for adding water through the inlet pipe; the device comprises a barrel body for adding water through the inlet pipe, a barrel cover matching the opening of the barrel body, a base and a heater; the barrel includes a liner and a casing, the base is disposed at a bottom of the casing, and the heater is disposed on the base or in the inner casing or the outer wall of the inner casing; the inner casing The inner surface is provided with an upper water level controller and a lower water level controller from top to bottom, and the upper water level controller and the lower water level controller are electrically connected to the water inlet controller of the water inlet pipe; The surface or the outer wall of the inner tank is provided with a temperature sensor, and the outer surface of the outer casing or the base is provided with a heating controller and a heat preservation controller, and the heating controller and the heat preservation controller are respectively connected with the temperature sensor And electrically connected to the heater; or a heating and heat preservation controller and a heat insulation sensor are disposed on the outer surface of the outer casing or the base, and the heating and heat preservation controller is respectively connected with the heat insulation sensor, the temperature sensor and the heating Electrically connected.

When the water level in the device is lower than the height of the lower water level controller, the lower water level controller controls the water inlet controller to open and automatically adds water; and at the same time, the heating controller communicates with the heater for heating; when the water level reaches the upper water level controller height When the upper water level controller controls the water inlet controller Turn off and automatically stop adding water, and the heating controller will continue to communicate with the heater for heating. When the water temperature reaches 100 ° C, the heating controller opens the circuit to stop heating, and at the same time, the heat preservation controller enters the heat preservation state. When the water temperature in the device is lower than the temperature that can be set to 65 ° C to 95 ° C, the heat preservation controller is connected to the heater for heat preservation; when the water temperature reaches any adjustable temperature within 70 ° C to 95 ° C, the heat preservation control Disconnect the circuit and stop heating.

When the water level of the inner tank is lower than the lower water level controller, the heat preservation controller disconnects the circuit and stops heating, and the lower water level controller again controls the water inlet controller to open, and starts to automatically add water again, and the heating controller is connected and heated at the same time. The device performs heating. When the water level reaches the height of the upper water level controller, the upper water level controller again controls the water inlet controller to automatically stop adding water, and then performs the heating-heating cycle automatic control operation again.

In the present invention, by providing a water level controller or a water level sensor, the device of the present invention can realize automatic watering, thereby avoiding the complicated operation brought by manual watering; meanwhile, in the present invention, by setting a heating controller and heat preservation control Therefore, the device of the invention can realize effective boiling heating and heat preservation at a suitable temperature, thereby saving energy and avoiding the harm caused by repeated boiling heating to the human body.

Optionally, in the present invention, the upper water level controller and the lower water level controller respectively comprise a water level sensor, a single chip or a chip. Further, the single chip or the chip is electrically connected to the relay respectively, and the water inlet controller on the inlet pipe is controlled by the relay to automatically add water or automatically stop adding water.

Optionally, in the present invention, the heating controller and the heat preservation controller respectively comprise a single chip or a chip. Further, the single chip or the chip is respectively connected to the relay, and the heater is controlled by the relay to perform boiling heating or heat preservation.

Optionally, in the present invention, the operating voltage of the device is 1.2-380V for AC or DC, and the power of the device is 1-9999w.

Optionally, in the present invention, the lid and the barrel are of a split structure.

Optionally, in the present invention, the lid and the barrel are connected by a detachable structure.

Optionally, in the present invention, the heating controller and the heat preservation controller are disposed in parallel.

Optionally, in the present invention, the barrel is circular, square or pot-shaped.

Optionally, in the present invention, the bucket lid is connected to the barrel body by a hinge.

Optionally, in the present invention, the heater is a heating plate or a resistance wire.

Optionally, in the present invention, the electrical connection is a wire connection, a photoelectric signal or a wireless transmission connection.

Optionally, in the present invention, the outer casing is a metal outer casing; preferably, the outer casing is a stainless steel outer casing.

Optionally, in the present invention, the heater is disposed on the outer wall of the bladder body.

Optionally, in the present invention, the heater is disposed in the barrel body.

In the present invention, by providing the heater in the inside of the barrel, the operation of the heater can be monitored during the heating process, thereby improving the safety of the apparatus of the present invention.

Optionally, in the present invention, the heater is a metal heater.

Optionally, in the present invention, the heater is a stainless steel heater.

Optionally, in the present invention, the heater is a ceramic heater.

Optionally, in the present invention, the heater is a composite heater.

Optionally, in the present invention, the heater is connected to a sidewall of the barrel body through a detachable structure.

In the present invention, by connecting the heater and the barrel inner body through the detachable structure, the heater can be adjusted and replaced, thereby improving the service life of the overall structure of the apparatus of the present invention and reducing the use cost.

Optionally, in the present invention, an insulation layer is further disposed between the barrel body and the outer casing, and a waterproof insulation layer is disposed outside the outer casing.

In the present invention, by providing the heat insulating layer, the heat dissipation process of the boiling/insulating hot water can be slowed down, thereby avoiding energy waste caused by frequent heating. Similarly, in the present invention, by providing a waterproof heat insulating layer on the outer casing, the heat insulating effect of the apparatus of the present invention can be further improved. Further, by providing a waterproof heat insulation layer, it is also possible to avoid burns that may be caused by contact with the heater; at the same time, the waterproof heat insulation layer also prevents corrosion of the device due to prolonged contact with moisture and possible short circuit.

Optionally, in the present invention, the heat insulating layer is a polyurethane heat insulating layer.

In the present invention, the heat retention performance of the device of the present invention is further improved by selecting and adjusting the heat insulating layer and using polyurethane having better thermal insulation properties as the heat insulating layer.

Optionally, in the present invention, the thickness of the heat insulating layer is 1-50 mm; preferably, in the present invention, the thickness of the heat insulating layer is 5-15 mm.

Optionally, in the present invention, the polyurethane is a mixed polyurethane material of one or more of PU soft foam polyurethane, PU rigid foam polyurethane, PU semi-hard foam polyurethane and polyurethane elastomer.

Optionally, in the present invention, the waterproof and heat insulation layer is an organopolysiloxane waterproof and heat insulation layer.

In the present invention, by selecting and adjusting the material of the heat insulating layer and using a material having better waterproof and heat insulating properties, the device of the present invention can be further protected from water vapor corrosion while improving the heat insulating property of the device of the present invention. . At the same time, the transparent/translucent organopolysiloxane material is used as the heat insulating layer, which also makes the device of the present invention more beautiful.

Optionally, in the present invention, the bucket cover or the side wall of the barrel is further provided with an opening, and the opening has the same shape as the inlet pipe, and the opening has an area larger than a cross-sectional area of the inlet pipe.

In the present invention, by providing an opening on the lid of the tub or on the side wall of the tub, the inlet pipe can be directly inserted into the tub, and the influent water can be directly introduced into the tub, thereby simplifying the operation of adding water to the tub.

Optionally, in the present invention, the lid and the barrel are connected by a detachable device; further, the detachable device may be screwed.

Optionally, in the present invention, the lid and the barrel are connected by a rotating structure.

In the present invention, the barrel cover and the barrel body are connected by a detachable structure, thereby ensuring the consistency of the apparatus of the present invention as a whole; at the same time, the detachable connection also enables the barrel cover of the apparatus of the present invention to be replaced, thereby improving The efficiency of use of the device of the invention.

Optionally, in the present invention, the volume of the barrel is 1-9999L; preferably, in the present invention, the volume of the barrel is 1.5L-999L, which may be, for example but not limited to, 1.5L, 3L, 5L, 7.5L, 10L, 20L, 50L, 150L, 200L, etc.

In the present invention, the apparatus of the present invention can be used in different places by adjusting and optimizing the volume of the tub. For example, it can be used as a small household electric kettle or as a large unit electric hot water tank.

Optionally, in the present invention, the outer surface side wall of the barrel body of the device is further provided with a water outlet.

In the present invention, by providing a water outlet outside the barrel metal, the hot water can be conveniently poured out and then consumed or used.

Optionally, in the present invention, the water outlet is further provided with a water valve.

Optionally, in the present invention, the outer surface of the bottom of the device barrel is further provided with an overheat protection controller; the overheat protection controller is electrically connected to the temperature sensor and the power source.

Optionally, in the present invention, the overheat protector comprises a single chip or a chip and a relay, and the power is disconnected by controlling the relay.

Optionally, in the present invention, an outer surface of the barrel body of the device is further provided with an overheat protection controller; the overheat protection controller is electrically connected to the temperature sensor and the power source.

In the present invention, by providing the overheat protection controller, when the heating temperature of the heater of the present invention is too high, the power can be turned off and/or the heating can be stopped, so that the device of the present invention does not burn out, thereby ensuring the present invention. The safety of the device.

Optionally, in the device of the present invention, the overheat protection controller is activated when the temperature reaches 125 ° C, and the heating passage is cut off to stop the heating.

Optionally, in the present invention, a hot water pump is further disposed in the bottom of the inner tank or the base, and the hot water pump is respectively connected to the inner tank and the water outlet through a water pipe.

In the present invention, by providing a hot water pump at the bottom of the inner tank, water can be extracted from the water outlet by a water pump. When the water level in the inner tank is lower than the water outlet or the water temperature reaches 100 °C, the hot water pump can be turned on to extract the hot water in the inner tank to ensure the full utilization of the hot water/insulation water.

Compared with the prior art, the beneficial effects of the present invention are:

(1) In the present invention, by providing a water level controller, the apparatus of the present invention can realize automatic water addition, thereby avoiding complicated operations caused by manual water addition; meanwhile, in the present invention, by setting a heating controller and heat preservation control Therefore, the device of the invention can realize effective boiling heating and heat preservation at a suitable temperature, thereby saving energy and avoiding the harm caused by repeated boiling heating to the human body.

(2) In the present invention, by providing the heat insulating layer, the heat dissipation process of the boiling/insulating hot water can be slowed down, thereby avoiding energy waste caused by frequent heating. Similarly, in the present invention, by providing a waterproof heat insulating layer on the outer casing, the heat insulating effect of the apparatus of the present invention can be further improved. Further, by providing a waterproof heat insulation layer, it is also possible to avoid burns that may be caused by contact with the heater; at the same time, the waterproof heat insulation layer also prevents corrosion of the device due to prolonged contact with moisture and possible short circuit.

DRAWINGS

In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings to be used in the specific embodiments or the description of the prior art will be briefly described below, and obviously, the attached in the following description The drawings are some embodiments of the present invention, and other drawings may be obtained from those skilled in the art without departing from the drawings.

1 and 2 are respectively a schematic structural view of an apparatus provided in Embodiment 1 and Embodiment 2 of the present invention, 101-upper water level controller, 102-lower water level controller, 103-temperature sensor, 104-barrel, 105- Insulation sensor, 105'-insulation controller, 106-heating and heat preservation controller, 106'-heating controller, 107-overheat protection controller, 108-base, 109-heater, 110-barrel cover, 111-inlet pipe , 112-inlet controller, 113-outer, 114-liner;

3 is a schematic cross-sectional view of a barrel of the device provided by the present invention, 201-liner, 202-insulation layer, 203-shell, 204-waterproof heat insulation layer;

4 is a schematic structural view of a device according to Embodiment 3 of the present invention, 301-upper water level controller, 302-lower water level controller, 303-temperature sensor, 304-heater, 305-insulation sensor, 306-barrel ,307-heating insulation controller,308-heat protection controller,309-base,310-barrel cover,311-inlet pipe,312-inlet controller,313-opening,314-water valve,315-shell,316 - Liner.

detailed description

In order to make the objects, the technical solutions and the advantages of the present invention more clearly, the technical solutions of the present invention will be clearly and completely described below. Based on the specific embodiments of the present invention, those skilled in the art will not make creative labors. All other embodiments obtained below are within the scope of the invention.

In the description of the present invention, it is to be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. The orientation or positional relationship of the indications is based on the orientation or positional relationship shown in the drawings, and is merely for the convenience of the description of the invention and the simplified description, rather than indicating or implying that the device or component referred to has a specific orientation, in a specific orientation. The construction and operation are therefore not to be construed as limiting the invention. Moreover, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that the terms "installation", "connected", and "connected" are to be understood broadly, and may be fixed or detachable, for example, unless otherwise explicitly defined and defined. Connected, or connected integrally; can be mechanical or electrical; can be directly connected, or indirectly connected through an intermediate medium, can be internal to both components Connected. The specific meaning of the above terms in the present invention can be understood in a specific case by those skilled in the art.

Example 1

As shown in FIG. 1, the electrothermal heating water device provided by the present invention comprises a base 108 provided with a heater 109, and the base 108 is located at the lower end of the barrel 104. The tub 104 is coupled to the tub cover 110 by a hinge. The barrel body 104 includes a liner 114 and a casing 113. Meanwhile, the surface of the inner surface of the inner casing 114 is provided with two vertically distributed upper water level controllers 101 and a lower water level controller 102, an upper water level controller 101 and a lower water level. The controller 102 is electrically connected to the water inlet controller 112 on the inlet pipe 111, respectively. Further, the inner surface of the inner casing 114 is provided with a temperature sensor 103. The outer surface of the outer casing 113 is provided with a heat preservation controller 105' and a heating controller 106'; the outer surface of the bottom surface of the inner casing 114 is provided with overheating. The protection controller 107; the heat retention controller 105' and the heating controller 106' are respectively electrically connected to the temperature sensor 103 and the heater 109, and the overheat protection controller 107 is electrically connected to the temperature sensor 103 and the power source, respectively.

When the water level in the device is lower than the height of the lower water level controller 102, the lower water level controller 102 controls the water inlet controller 112 to be turned on, and automatically starts to add water; when the water level reaches the height of the upper water level controller 101, the upper water level controller 101 controls The water inlet controller 112 automatically stops adding water, and the heating controller 106' communicates with the heater 109 for heating. When the water temperature reaches 100 ° C, the heating controller 106' disconnects the circuit to stop heating; when the water temperature in the device is lower than 65 ° C, the heat is maintained. The controller 105' communicates with the heater 109 for heat preservation. When the water temperature reaches 95 ° C, the heat retention controller 105' opens the circuit and stops heating.

When the water level of the inner tank 114 is lower than the lower water level controller 102, the heat retention controller 105' opens the circuit and stops heating, and the lower water level controller 102 again controls the water inlet controller 112 to open. And automatically start to add water again, when the water level reaches the height of the upper water level controller 101, the upper water level controller 101 again controls the water inlet controller 112 to automatically stop adding water, and then performs the heating-heat preservation cycle automatic control operation again, thereby realizing the electric heating of the present invention. The circulation of the water heating device automatically adds water, heat and heat retention.

Example 2

As shown in FIG. 2, the electrothermal heating water device provided by the present invention includes a base 108 provided with a heater 109, and the base 108 is located at the lower end of the barrel 104. The tub 104 is coupled to the tub cover 110 by a hinge. The barrel body 104 includes a liner 114 and a casing 113. Meanwhile, the surface of the inner surface of the inner casing 114 is provided with two vertically distributed upper water level controllers 101 and a lower water level controller 102, an upper water level controller 101 and a lower water level. The controller 102 is electrically connected to the water inlet controller 112 on the inlet pipe 111, respectively. Further, the inner surface of the inner casing 114 is provided with a temperature sensor 103 of 100 ° C, the outer surface of the outer casing 113 is provided with a thermal insulation sensor 105 of any temperature adjustable from 65 ° C to 95 ° C, heating and heating controller 106; The outer surface of the bottom of the inner tank 114 is provided with an overheat protection controller 107; the heating and heat preservation controller 106 is electrically connected to the temperature sensor 103, the heat insulation sensor 105 and the heater 109, respectively, and the overheat protection controller 107 and the temperature sensing respectively The device 103 is electrically connected to a power source.

When the water level in the device is lower than the height of the lower water level controller 102, the lower water level controller 102 controls the water inlet controller 112 to be turned on, and automatically starts to add water; at the same time, the heating and holding controller 106 communicates with the heater 109 for heating, when the water level reaches When the upper water level controller 101 is at a height, the upper water level controller 101 controls the water inlet controller 112 to automatically stop adding water, and the heating and heat preservation controller 106 continues to communicate with the heater 109 for heating. When the water temperature reaches 100 ° C, the heating and heat preservation controller 106 is disconnected. The open circuit stops heating; when the water temperature in the device is lower than 65 ° C, the heat preservation controller 106 is heated. The heater 109 is connected to perform heat insulation. When the water temperature reaches 90 ° C, the heat retention controller 106 turns off the circuit and stops heating.

When the water level of the inner tank 114 is lower than the lower water level controller 102, the heating and holding controller 106 turns off the circuit and stops heating, and the lower water level controller 102 again controls the water inlet controller 112 to be turned on, and starts to automatically add water again, at the same time. The heating and holding controller 106 communicates with the heater 109 for heating. When the water level reaches the height of the upper water level controller 101, the upper water level controller 101 again controls the water inlet controller 112 to automatically stop adding water, and then performs the heating-heating cycle automatic control operation again. Thereby, the automatic water adding, heating and heat preservation function of the electric hot water heating device of the invention is realized.

Example 3

As shown in FIG. 4, the electrothermal heating water device provided by the present invention comprises a base 309 at the lower end of the barrel 306, and a heater 304 is disposed on the side wall of the inner tube 316 of the barrel 306. The tub 306 is coupled to the tub cover 310 by a hinge. The barrel 306 further includes a casing 315, and at the same time, the inner surface of the inner surface of the inner casing 316 is provided with two vertically distributed upper water level controllers 301 and a lower water level controller 302, an upper water level controller 301 and a lower water level controller. 302 is electrically connected to the water inlet controller 312 on the water inlet pipe 311, respectively, and the water inlet pipe 311 is opened through the opening 313 in the water tank cover 310. Further, the inner surface of the inner casing 316 is provided with a temperature sensor 303 of 100 ° C, and the outer surface of the outer casing 315 is provided with a water valve 314, and the water valve 314 is further connected to the inner tank 316 through a pipeline; The outer surface of the outer casing 315 is parallelly provided with an arbitrary temperature thermal insulation sensor 305 and a heating and heat preservation controller 307; the outer surface of the inner surface of the inner casing 316 is provided with an overheat protection controller 308; 307 are respectively electrically connected with the temperature sensor 303, the heat insulating sensor 305 and the heater 304, and the overheat protection controller 308 is respectively connected with the temperature sensing. The device 303 is connected to a power source. When the water level in the device is lower than the height of the lower water level controller 302, the lower water level controller 302 controls the water inlet controller 312 to open, and automatically starts to add water; at the same time, the heating and holding controller 307 communicates with the heater 304 for heating, when the water level reaches When the upper water level controller 301 is at the height, the upper water level controller 301 controls the water inlet controller 312 to be closed, and automatically stops adding water, and the heating and heat preservation controller 307 continues to communicate with the heater 304 for heating. When the water temperature reaches 100 ° C, the heating and heat preservation control is performed. The device 307 turns off the circuit to stop heating; when the water temperature in the device is lower than 65 ° C, the heating and holding controller 307 communicates with the heater 304 for heat preservation. When the water temperature reaches 90 ° C, the heating and holding controller 307 turns off the circuit and stops heating.

When the water level of the inner tank 316 is lower than the lower water level controller 302, the heating and holding controller 307 turns off the circuit and stops heating, and the lower water level controller 302 again controls the water inlet controller 312 to open, and starts to automatically add water again, at the same time. The heating and holding controller 307 is connected to the heater 304 for heating. When the water level reaches the height of the upper water level controller 301, the upper water level controller 301 again controls the water inlet controller 312 to automatically stop adding water, and then performs the heating-heating cycle automatic control operation again. Thereby, the automatic water adding, heating and heat preservation function of the electric hot water heating device of the invention is realized.

Further, if a heating abnormality occurs, the heating is not stopped when the water temperature reaches or exceeds 125 ° C, and the overheat protection controller 308 turns off the power supply to ensure the safety of the device.

In a further embodiment, as shown in FIG. 3, an insulating layer 202 is further disposed between the device liner 201 and the outer casing 203, and the insulating layer 202 is a polyurethane layer; similarly, the outer casing 203 is further A waterproof heat insulating layer 204 is provided, which is an organopolysiloxane layer.

In the present invention, a water level controller is provided, so that the device of the present invention can realize automatic watering, thereby avoiding the complicated operation caused by manual watering; meanwhile, in the present invention, by providing a heating controller and a heat preservation controller, The device of the invention can realize effective boiling heating and heat preservation at a suitable temperature, thereby saving energy and avoiding the harm caused by repeated boiling heating to the human body.

While the invention has been illustrated and described with reference to the embodiments of the present invention, it will be understood that many modifications and changes can be made without departing from the spirit and scope of the invention. Accordingly, it is intended to embrace in the appended claims

Claims

An electric heating water device, characterized in that the device comprises a barrel body for adding water through the inlet pipe, a barrel cover matching the opening of the barrel body, a base and a heater;

The barrel includes a liner and a casing, the base is disposed at a bottom of the casing, and the heater is disposed on the base or an inner surface of the inner tank or an outer wall of the inner casing;

The inner surface of the inner tank is provided with an upper water level controller and a lower water level controller from top to bottom, and the upper water level controller and the lower water level controller are electrically connected to the water inlet controller of the water inlet pipe;

The inner surface or the outer wall of the inner tank is provided with a temperature sensor.

a heating controller and a heat preservation controller are disposed in the outer casing or the base, and the heating controller and the heat preservation controller are respectively electrically connected to the temperature sensor and the heater; or the heating and heat preservation controller is disposed in the outer casing or the base And a heat insulation sensor, wherein the heating and heat preservation controller is electrically connected to the heat insulation sensor, the temperature sensor and the heater, respectively.
The electric heating water apparatus according to claim 1, wherein said heater is connected to a side wall of said inner liner through a detachable structure.
The electric heating water device according to any one of claims 1 to 2, wherein a heat insulating layer is further disposed between the inner casing and the outer casing, and a waterproof heat insulating layer is further disposed outside the outer casing.
The electric heating water device according to claim 3, wherein the heat insulating layer is a polyurethane insulating layer.
The electric heating water device according to claim 3, wherein the waterproof heat insulating layer is an organopolysiloxane waterproof heat insulating layer.
The electric heating water device according to any one of claims 1 to 2, wherein an opening is further provided on the tub cover or the side wall of the tub, and the opening has the same shape as the inlet pipe. The area of the opening is larger than the cross-sectional area of the inlet pipe.
The electric heating water device according to any one of claims 1 to 2, wherein the tub cover is connected to the tub body by a detachable device connection or a rotating device.
The electric heating water device according to any one of claims 1 to 2, wherein an outer surface of the barrel body of the device is further provided with an overheat protection controller;

The overheat protection controller is electrically connected to the temperature sensor and the power source.
The electric heating water device according to any one of claims 1 to 2, characterized in that the side wall of the outer surface of the barrel of the device is further provided with a water outlet.
The electric heating water device according to claim 9, wherein a heat pump is further disposed in the bottom of the inner tank or the base, and the hot water pump is respectively connected to the inner tank and the water outlet through a water pipe.
The electric heating water device according to claim 1, wherein the barrel shape is circular, square, and pot-shaped.