CN1073751C - Surge suppression device - Google Patents
Surge suppression device Download PDFInfo
- Publication number
- CN1073751C CN1073751C CN94105240A CN94105240A CN1073751C CN 1073751 C CN1073751 C CN 1073751C CN 94105240 A CN94105240 A CN 94105240A CN 94105240 A CN94105240 A CN 94105240A CN 1073751 C CN1073751 C CN 1073751C
- Authority
- CN
- China
- Prior art keywords
- pin
- plug
- mov
- electrically connected
- realizing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
The present invention relates to a surge suppression device which is arranged at the end of an electric plug and permits the plug to be normally matched with a female socket. In the best embodiment, the device comprises a body made of metal oxide varistor (MOV) materials, wherein one inserting pin of the body is connected with a sheet on the MOV, and the other inserting pin is connected with a sheet arranged oppositely on the MOV. When the present invention bears overhigh voltage, the MOV body is broken so as to divide voltage possibly having a destructive effect among the plug and the inserting pins.
Description
The application is the U.S.'s serial number 938 that proposed on August 31st, 1992,111 part continuation application, the latter is the U.S.'s serial number 895 that proposed on June 5th, 1992,148 part continuation application, the continuation application of U.S.'s serial number 694,262 that the latter is abandoning now of proposing on April 29th, 1992.
The present invention relates to surge inhibition technology, or rather, relate to the device that is used for reducing power line noise and interference.
The modern Commercial electric equipment may be damaged by noise, due to voltage spikes and the electromagnetic interference (EMI) through the power line conduction.Some kinds of existing devices that are used to suppress circuit noise comprise Surge Suppressors power strip, people having the same aspiration and interest case (gang box) and active electrical source adjuster.In general, it is big and occupy sizable space around the electronic equipment to be used to suppress the existing device volume of surge.They generally also need attaching plug, socket and encirclement plug, socket that adds and the electrical enclosure that suppresses circuit.The sample that can buy on a kind of market of this structure is made " big capacity due to voltage spikes protector " by Archer.
Also find other problems in the design of prior art, this part ground reaches several inches independent lead-in wire because these designs are adopted.These leads that add contain sizable undesirable impedance, and this impedance reduces the validity that suppresses.In addition, big shell and the plug hardware designs used in the prior art structure also increase the production and selling cost, and make the end user bear the adverse consequences of space burden.
Thereby existing a kind of needs of implementing notion that improve for the attaching plug surge suppressor, it should be eliminated outside hardware and improve rejection.
According to technology of the present invention, a device that comprises the voltage transient limiting material on it is provided with the hole that the pin in a series of with the supporting electric connector is aimed at.This device can slip over pin and thin be enough to allow plug match with normal mode and negative electricity supply socket and less than the interference from this device.This device has the contact to realize being connected and not needing the long lead section between pin selected in the attaching plug and the transition limiting material.
Installing does not need to revise main hardware, can finish and not influence the machinery or the electrical integrity of main connector soon.The surge inhibit feature is limited in the scope of this device, need be placed on the very big function volume in the electric connector shell in addition unlike art methods.As a result, the present invention has eliminated exterior part and has eliminated the lead-in wire that adds, and has therefore improved rejection and has avoided being the needs of its function of realization to the space beyond the plug and socket that matches.Owing to eliminated exterior part and significantly reduced size and weight, the cost of production and selling is lower.
Studied this specification and with reference to accompanying drawing after, other advantages of the present invention will become apparent for the professional and technical personnel, in the accompanying drawing
Fig. 1 is the decomposition diagram of surge suppression device of the present invention, a plug and socket;
Fig. 2 is the plane graph of an embodiment that the surge suppression device of surge protection is provided between the live wire of alternating-current electric plug and zero line pin;
Fig. 3 is the exploded view of the device of Fig. 2;
Fig. 4 is the cutaway view along the line 4-4 intercepting of Fig. 2;
Fig. 5 is and the similar view of Fig. 4, expression be clipped in electric connector and the cloudy plug that matches between surge suppression device;
Fig. 6 is the decomposition diagram that is used for the another embodiment of the present invention of three pin electric connectors;
Fig. 7 is the plane graph of the surge suppression device embodiment of Fig. 6;
Fig. 8 is the cutaway view along the line 8-8 intercepting of Fig. 7;
Fig. 9 is the perspective view of the another embodiment of surge suppression device of the present invention;
Figure 10 is the local enlarged perspective of some parts of the device of Fig. 9;
Figure 11 is the electrical schematic diagram of parts in the designs of Fig. 9;
Figure 12 is the plane graph of another embodiment;
Figure 13 is the cutaway view along the line 13-13 intercepting of Figure 12; And
Figure 14 be used for the tripod appliance plug, with the similar plane graph of another embodiment of the embodiment of Figure 12.
Should indicate from the beginning, will realize that when proposing the application the limited example of minority of best mode of the present invention describes the present invention in conjunction with explanation.Yet, having benefited from studying text, accompanying drawing and after detailed specification following claim book, various modifications will become apparent for the professional and technical personnel.Also will remember the embodiment that adds with reference to the U.S. mentioned above serial number 938,111 that is included in this paper by reference.
Fig. 1-Fig. 5 represents an embodiment of surge suppression device of the present invention.Fig. 1 represents that one is suppressed insertion device 10 with the conventional two pin ac power plugs 12 and the surge of 120 volts AC socket 14 logotypes.Plug 12 can be used for through cable 26 to equipment 28 power supply, and equipment 28 can be various governments with, industrial, commercialization and residential electric power gas/electronic sub-system.For example, device 10 can add in the feed cable of being located at a shop equipment soon so that do not eliminate noise on the power line that is caused by the motor in the factory with appearing.In addition, surge suppression device 10 can add and is located at electric tool, portable electronic instrument and computer and do not increase too much weight or volume.
In Fig. 1, plug 12 comprises conventional rectangle sun pin 16 and 18, and these pins are called as live wire and zero line conductive base pin.Sun pin 16,18 generally is about 0.7 inch long and usually directly insert respectively in the cloudy jack that matches 22,24 in the socket 14.When directly matching, noise or the voltage transient that is accompanied by it often arranged from the electric power of socket 14.As is generally known normal line voltage is about interchange 115-120 volt.Often run into the voltage transient that is called the much higher magnitude of voltage of having of surge, and, if do not suppressed, may damage equipment 28 by plug 12 power supplies.According to the present invention, device 10 is used for suppressing this voltage transient.
The CONSTRUCTED SPECIFICATION of device 10 more is clearly shown among Fig. 2-Fig. 5.The integral body of device is made by voltage transient limiting material 30 basically, and this material is that a kind of too high voltages that can prevent is damaged the synthetic or composite material of the electric device 28 that links to each other with plug 12.The material of preferentially choosing at present is the material with dielectric property; it comprises the metal oxide dielectric material as zinc oxide and so on, and it is designed to have and is higher than normal line voltage (for example 120 volts) but low the puncture voltage that is enough to produce protection when high voltage transient.For example, the surge suppressor of being made by the zinc oxide dielectric material may be had an appointment ± 400 volts puncture voltage.The device of this general type is called metal-oxide varistor (MOV) and can have bought from the various sources of goods, as the model V131CA32 of Harris semiconductor company.MOV body 30 is in the present embodiment made the thin plate gasket shape, and its periphery is preferably done equal extension with periphery of plug end face 32 or less than the latter.
A conducting strip 36 is arranged on the interarea 34 of MOV body 30.Equally, on the another side 40 of body 30, form a conducting strip 38.In body 30, form hole 42,44 so that hold the live wire and the zero line pin 16,18 of plug 12 respectively.
Take following measure so as when using device 10, to realize pin 16 with 18 respectively with sheet 36 and 38 electric contacts.In the embodiment shown, form a flexible finger contact 48 of row and put in hole 42 by conducting strip 36.Equally, contact 50 puts in hole 44 and contacts with the electric of sheet 38 realizing. Sheet 36,38 and contact 48,50 can be formed by the thick brass conductive figure that is bonded in body 30 with welding material and so on of about 5 mils (0.127 millimeter).
The outside of body 30 covers with the appropriate insulation layer 52 of polyimide film (Kapton) and so on, simultaneously contact 48 and 50 is exposed.
As among Fig. 5 best expression like that, device 10 enough approaches, and plug 12 can be matched and device 10 is clipped between them by normal mode and socket 14.In general, the gross thickness of device 10 will be less than about 0.1 inch or less than about 15% of pin 16,18 length.This 30 about 0.04-0.07 inch of MOV own is thick.
During use, the user slips over device 10 the positive pin of plug 12.Can provide an optional adhesive-layer 54 so that device is bonded in the end face 32 of plug 12.So pin 18 is connected in sheet 36 by contact 48.Equally, the pin 16 of plug is connected in sheet 38 by contact 50.It will be appreciated that pin 16 and 18 thereby be coupled on electric by dielectric 30 via overlapping sheet 36,38.Device 10 is clipped between them so plug 12 inserts socket 14 by normal mode.
When socket 14 provided normal line voltage, MOV body 30 showed very high impedance between pin 16 and 18.In fact have an open circuit between pin 16 and 18, the result is sent to equipment 28 basically unchangeably from the voltage of socket 14.Yet if run into the voltge surge of the puncture voltage (for example above 400 volts) above MOV body 30, the MOV puncture also provides a conductive path between pin 16 and 18.So, in fact there is a short circuit between pin 16 and 18, it is magnitude of voltage slave unit 28 shuntings of potentially dangerous.This conductive path disappears when line voltage recovers normal value (for example being lower than the puncture voltage of body 30).
The embodiment of Fig. 2-Fig. 5 provides protection to exempt from the evil that appears at the differential pressure surge between live wire and zero line pin 16 and 18.Different therewith, the embodiment of Fig. 6-Fig. 8 provides the common mode protection for the tripod electric connector that also comprises ground wire sun pin 54 except above-mentioned live wire and zero line pin 16 and 18.So protect electric equipment 28 to exempt from the evil of the voltge surge between the combination of any pin, promptly between earth pin 54 and the live wire pin 16, between earth pin 54 and the zero line pin 18 and the voltge surge between live wire and zero line pin 16 and 18.
In one embodiment of this back, metal oxide piezoresistive material body 60 is divided into three coplane parts that separate 62,64 and 66.Last conducting strip 68 is divided into two parts 70 and 72.Following conducting strip 74 is divided into two parts 76 and 78.Part 72 comprise one be used for realizing with zero line pin 18 bottoms be electrically connected cut apart contact 80.Part 70 comprises one and is used for the complete contact 82 of realizing contacting with whole live wire pin 16.On the other hand, part 76 have be used for realizing contacting with zero line pin 18 tops electric cut apart contact part 84.The part 78 of following sheet 74 comprises and is used for the complete contact regions 86 that engages with earth pin 54.
As the most clearly representing among Fig. 6,7 and 8, certain intervals is arranged when device 90 is assembled between the part 62,64 and 66 of a time-out at MOV body 60.Equally, the part 70 and 72 of sheet 68 also is spaced from each other.Equally, the part 76 and 78 of sheet 74 also separates.In embodiment in front, the outside of device 90 is covered by insulating coating 92.During assembling, the otch 96 and 98 in the body 60 matches and forms the groove that zero line pin 18 is passed.Otch 100 and 102 same grooves 104 that pass that form live wire pin 16.Opposed arc- shaped notch 108 and 110 matches and forms the hole 112 that earth pin 54 is passed.
When device 90 was clipped between the plug and socket that matches, many parts parts of device match provided the common mode protection.Prevent the protection of ground wire by being clipped in to provide to the evil of live wire transition via the conductive pieces 70 of contact 82 and via the MOV body part 66 between the conductive pieces 78 of contact 86.Provide the protection from transients of ground wire by the MOV body part 64 that is clipped between the conductive pieces 78 that is electrically connected via the current-carrying part 72 of cutting apart contact regions 80 and via contact 86 and earth pin 54 to zero line.Provide the protection from transients of live wire by the MOV body part 62 that is clipped between half contact 84 on (via contact 82) conductive pieces 70 and the conductive pieces 76 to zero line.So, exist three independent MOV circuit pathways that are used for protecting respectively with the evil of the voltage transient in any combination of the positive pin that prevents to appear at plug.
The embodiment of Fig. 9 to Figure 11 comprises the measure of visual detector from the operating state of surge suppression device 140 to the user that can inform.Will be in conjunction with describing this feature of the present invention with similar one two pin embodiment shown in Fig. 1-Fig. 5.Therefore, in its description, will use identical reference number.Yet be noted that this feature can be used for all embodiment.
In Fig. 9 to Figure 11, a status indicator lamp 142, a discrete resistor 144 and a fuse 146 are set in the recess 148 of device upper limb.An insulating barrier 150 is isolated live wire pin contact 152 and brace 154 with the live wire metal level formation sheet 156 on MOV body 30.L shaped contact pin 154 extends to from contact 152 recess 148 to realize and being connected of fuse member 146 1 ends.The other end of fuse 146 is connected in live wire sheet metal 156 by L shaped contact pin 158.Contact pin 158 also realizes contacting with the electrical equipment of resistor 144 1 ends, and this resistor itself is abutted against the end that sheet 160 is connected in indicator light 142 again.The other end of lamp 142 is electrically connected in zero line sheet metal 164 by pad 162 and so on, and the latter itself is coupled in zero line pin contact 165 again.
Should be appreciated that the electrical schematic diagram shown in Figure 11 that is connected to form of such description now, fuse 146 is demarcated under the value more much lower than the maximum rated current of MOV body 30, for example fusing under 10 amperes.If device 140 bears unusual big electric current, thereby then fuse 146 will fuse lamp 142 is cut off the power supply.So will offer vision indication of user, promptly device 140 is no longer worked.
The embodiment of Figure 12-Figure 14 illustrates the structure that adopts discrete component, so that compare with the monolithic method shown in each figure of front.On function, the embodiment equivalence of the embodiment of Figure 12-Figure 13 and Fig. 1-Fig. 5.Equally, the embodiment of Figure 14 on function with the embodiment equivalence of Fig. 6-Fig. 8.
Express a kind of surge suppression device 186 that not only comprises the differential mode protection but also protect the common mode protection among Figure 14.It comprises three independent MOV disks 188,190 and 192 that are contained in the plastic housing 194.Contact 196,198 and 200 is set so that being electrically connected of realization and zero line, live wire and earth pin.Contact pin 202 realizes electric contact the between the surface of zero line contacts 196 and MOV188.Being electrically connected between another surface of contact pin 204 realization MOV188 and the firewire contact 198.Contact pin 206 realizes being electrically connected between the surface of MOV192 and the firewire contact 198.Being electrically connected between another surface of contact pin 208 realization MOV192 and the ground wire plug contact 200.Being electrically connected between the surface of contact pin 210 realization ground wire contacts 200 and MOV190.Being electrically connected between another surface of contact pin 212 realization MOV190 and the zero line contact 196.Device 186 and three-pin plug 12 ' between geometrical relationship be also illustrated among Figure 14.
The professional and technical personnel can recognize now, the invention provides the significant superiority of the surge suppression device of competent prior art.It can be installed rapidly and easily.It has eliminated outside and bulky part, and the result reduced size and weight greatly.From aesthetic viewpoint, all more do not realize the surge inhibit feature boldly than any existing other schemes, because its functional packet is contained in the device within the scope that concentrates on the plug periphery basically.In addition, the design has also eliminated the outside lead section, thereby has improved performance.
It is such that erect image is pointed out from the beginning, described the present invention in conjunction with several concrete examples.Yet after having benefited from studying specification, accompanying drawing and claims, for the professional and technical personnel, various modifications and other application will become apparent.
Claims (10)
1. one kind is used for protecting electric equipment to exempt from the surge suppression device of damage, this electric equipment by one have with a female electrical socket in the plug of match one group sun of jack pin power, described device comprises:
A member, it enough approaches so that is contained between the adjacently situated surfaces of this plug and cloudy socket, allows plug base pin to match with cloudy socket simultaneously and engages;
Have some holes of aliging with these pins in this plug on the described member, this member can be enclosed within on these pins so that these pins extend through these holes;
Be used for when one of these pins extend through hole in this member, realizing electric first contact making device that contacts with this pin;
Be used for when one second pin extends through second hole in this member, realizing electric second contact making device that contacts with second pin;
Described member comprises an individuality that has opposed first and second surfaces of being made by the voltage transient limiting material;
Described first contact making device is electrically connected in described first surface;
Described second contact making device is electrically connected in described second surface; And
Whereby this device can be enclosed within on these pins of this convex plug and when this plug and this moon socket match this body suppress protection for described electric equipment provides surge.
2. device according to claim 1, it also comprises first conducting strip on a first surface of an individuality, with second conducting strip on a second surface of this individuality, wherein said first and second conducting strips are done equal the extension with described first and second surfaces of this individuality basically.
3. device according to claim 1, one of them body is made by the metal oxide piezoresistive material, and some of at least one individuality are opposed surface-coated with insulating material.
4. device according to claim 2, wherein a described individuality is passed at least one pair of hole, and described first and second contact making devices comprise a plurality of flexible finger-type contacts.
5. device according to claim 1 further comprises:
Indicating device is used to provide the information of relevant this device operating state, and described indicating device comprises a fuse and the indicator light between one of surface of being connected in one of described contact making device and described body; When device bears the abnormal electrical flow valuve, fuse blows and indicator light extinguishes.
6. device according to claim 1 share with one three pin plug that has zero line, live wire and earth pin, and described device further comprises the some parts of three metal oxide piezo-resistances spaced apart from each other (MOV).
7. device according to claim 6 further comprises:
Three sheets that on the counter surface of described a plurality of MOV parts, separate; And
Be used to provide the jockey that the common mode protection exempts from the evil of the voltage transient between any combination that these pins occur.
8. device according to claim 7, wherein said jockey comprises a kind of contact arrangement of cutting apart, and wherein single pin is electrically connected in lip-deep sheet of a MOV part and is electrically connected in another sheet on the counter surface of another MOV part.
9. device according to claim 8, wherein said member also comprise nonconducting, a flat housing substantially, have the hole that pin aligns in some and the plug on it, and housing can be enclosed within on these pins so that these pins extend through these holes.
10. device according to claim 9, it also suppresses for described electric equipment provides differential mode and common mode surge, and described device further comprises:
Be contained in first, second disk that separates with the 3rd made by metal oxide piezo-resistance (MOV) material in this housing;
Three holes in this housing, the live wire of this plug, zero line and earth pin extend through these holes;
Be used for when described zero line pin extends through one first hole realizing the electric zero line contact making device that contacts with this zero line pin;
Be used for when described live wire pin extends through one second hole realizing the electric firewire contact device that contacts with this live wire pin;
Be used for when described earth pin extends through one the 3rd hole realizing the electric ground wire contact making device that contacts with this earth pin;
Be used for realizing first electric installation that is electrically connected between the surface of a described zero line contact making device and a described MOV disk;
Be used for realizing another surface of a described MOV disk and second electric installation that is electrically connected between this firewire contact device;
Be used for realizing the 3rd electric installation that is electrically connected between the surface of described firewire contact device and described the 2nd MOV disk;
Be used for realizing another surface of described the 2nd MOV disk and the 4th electric installation that is electrically connected between this ground wire contact making device;
Be used for realizing the 5th electric installation that is electrically connected between the surface of this ground wire contact making device and described the 3rd MOV disk; And
Be used for realizing another surface of described the 3rd MOV disk and the 6th electric installation that is electrically connected between this zero line contact making device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN94105240A CN1073751C (en) | 1994-04-28 | 1994-04-28 | Surge suppression device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN94105240A CN1073751C (en) | 1994-04-28 | 1994-04-28 | Surge suppression device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1110835A CN1110835A (en) | 1995-10-25 |
| CN1073751C true CN1073751C (en) | 2001-10-24 |
Family
ID=5031983
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN94105240A Expired - Fee Related CN1073751C (en) | 1994-04-28 | 1994-04-28 | Surge suppression device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1073751C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105186244B (en) * | 2009-10-27 | 2018-04-24 | 胜德国际研发股份有限公司 | The connection method of socket device and socket device |
| JP6722386B2 (en) * | 2017-01-06 | 2020-07-15 | 株式会社オートネットワーク技術研究所 | Joint connector |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5181859A (en) * | 1991-04-29 | 1993-01-26 | Trw Inc. | Electrical connector circuit wafer |
| US5183698A (en) * | 1991-03-07 | 1993-02-02 | G & H Technology, Inc. | Electrical overstress pulse protection |
-
1994
- 1994-04-28 CN CN94105240A patent/CN1073751C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5183698A (en) * | 1991-03-07 | 1993-02-02 | G & H Technology, Inc. | Electrical overstress pulse protection |
| US5181859A (en) * | 1991-04-29 | 1993-01-26 | Trw Inc. | Electrical connector circuit wafer |
| US5290191A (en) * | 1991-04-29 | 1994-03-01 | Foreman Kevin G | Interface conditioning insert wafer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1110835A (en) | 1995-10-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5414587A (en) | Surge suppression device | |
| EP0169728B1 (en) | Electrical surge protection | |
| JP5932795B2 (en) | Modular connectors for cables or pipes and systems that include such modular connectors | |
| US4794485A (en) | Voltage surge protector | |
| US9793049B2 (en) | Protected capacitor system and method | |
| CA1247191A (en) | Power receptacle and associated filter | |
| US4438477A (en) | Combination power and communication line protection apparatus | |
| US7887363B1 (en) | Protective electrical wiring device and system | |
| JPS62133685A (en) | Cable connector | |
| US20070086141A1 (en) | Surge receptacle apparatus and power system including the same | |
| CA1099330A (en) | Transient voltage surge suppressing device | |
| US10777973B2 (en) | Arrangement of stack spark gaps and device for holding together and electrically contacting stack spark gaps | |
| JP2000503457A (en) | Electrical connection plug | |
| US5006950A (en) | Electrical transient surge protection with parallel means | |
| CN1073751C (en) | Surge suppression device | |
| US4901187A (en) | Electrical transient surge protection | |
| US5905622A (en) | Transient voltage surge suppressor with internal barriers | |
| EP0510019B1 (en) | Cable connector | |
| US9933147B2 (en) | Terminal block assembly | |
| JP2004523061A (en) | Terminal block with shoulder contacts and molded ground plate held by plastic insert | |
| WO1998027625A1 (en) | Telephone adaptor | |
| CN216214460U (en) | Transitional connection terminal, charging socket and charging plug | |
| US10014639B1 (en) | Electrical receptacle | |
| US4538200A (en) | Power connection apparatus having integrated surge arrestor | |
| JPH02207469A (en) | Pin connection,and protective method from electrodtatic discharge |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |