CN113130159A - Electrode connecting piece for surge protector and surge protector - Google Patents
Electrode connecting piece for surge protector and surge protector Download PDFInfo
- Publication number
- CN113130159A CN113130159A CN202110479660.2A CN202110479660A CN113130159A CN 113130159 A CN113130159 A CN 113130159A CN 202110479660 A CN202110479660 A CN 202110479660A CN 113130159 A CN113130159 A CN 113130159A
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- electrode
- surge protector
- connecting piece
- electrode connecting
- pin
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- 230000001012 protector Effects 0.000 title claims abstract description 52
- 238000003466 welding Methods 0.000 claims abstract description 19
- 238000009434 installation Methods 0.000 claims description 6
- 239000000155 melt Substances 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000007246 mechanism Effects 0.000 description 11
- 238000003780 insertion Methods 0.000 description 5
- 230000037431 insertion Effects 0.000 description 5
- 229910000679 solder Inorganic materials 0.000 description 4
- 238000013519 translation Methods 0.000 description 4
- 238000005452 bending Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 206010000369 Accident Diseases 0.000 description 1
- 208000025274 Lightning injury Diseases 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
- 230000011664 signaling Effects 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C7/00—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
- H01C7/10—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material voltage responsive, i.e. varistors
- H01C7/12—Overvoltage protection resistors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/04—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
- H02H9/041—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage using a short-circuiting device
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/04—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
- H02H9/044—Physical layout, materials not provided for elsewhere
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Fuses (AREA)
Abstract
The invention discloses an electrode connecting piece for a surge protector and the surge protector, wherein the electrode connecting piece is integrally formed; the electrode connecting piece comprises a connecting main body, a connecting part formed at one end of the connecting main body and used for being welded with one electrode of a piezoresistor of the surge protector, and a pin formed at the other end and used for inserting and pulling the surge protector. The technical scheme provided by the invention can reduce the welding process of the surge protector, and improve the production efficiency and the reliability of the surge protector.
Description
Technical Field
The invention relates to the technical field of overvoltage and overcurrent protection, in particular to an electrode connecting piece for a surge protector and the surge protector.
Background
Lightning is one of ten natural disasters. With the progress of technology, the equipment is more intelligent, the integration level is higher and higher, and the equipment is more sensitive to transient overvoltage, namely surge, caused by lightning. In addition, power surges can occur from the start and stop of high power equipment. The surge protector can prevent the surge from damaging equipment, and is widely applied to the industries of communication, building, rail transit, electric power, new energy, petrochemical industry and the like. When the peak current or voltage is generated in the circuit of the electric loop due to lightning stroke or external interference, the surge protector can be conducted in a very short time to release the current and limit the voltage to a lower level, so that damage of the surge to other equipment in the loop is avoided.
A common component in surge protectors used in power distribution systems is a varistor. The varistor has a very high resistance under normal operating conditions, corresponding to an open circuit condition, and when the voltage in the circuit exceeds a predetermined value, its resistance drops sharply, being in a conductive state, allowing the magnitude of the current to be discharged, limiting the overvoltage level.
However, after a long time of use, the varistor is gradually aged, the leakage current is gradually increased, and the heat balance is broken, resulting in a continuous rise in the temperature of the product. In order to prevent the varistor from causing a fire accident due to overheating, a thermal protection tripping device is generally arranged in the surge protector for disconnecting the varistor from the circuit when the temperature rises, and after the varistor is disconnected from the circuit, the surge protector is failed, and the protection effect on equipment is lost. And the failed surge protection device is provided with a state indicator to prompt maintenance personnel to replace the surge protection device in time. In some unattended occasions, a remote signaling device is required to be designed to realize remote indication of the failure state of the surge protector.
At present, in the existing surge protection device, the internal structure is complex, the production cycle is long, and the product reliability is low and the product volume is large.
Disclosure of Invention
The invention aims to overcome the defects that the conventional surge protector has a complex internal structure, low reliability, large product volume and the like.
In order to achieve the above object, the present invention provides an electrode connecting member for a surge protector, the electrode connecting member being integrally formed; the electrode connecting piece comprises a connecting main body, a connecting part formed at one end of the connecting main body and used for being welded with one electrode of a piezoresistor of the surge protector, and a pin formed at the other end and used for inserting and pulling the surge protector.
Preferably, the electrode connecting member is made of an integrally molded plate body.
Preferably, the pin is formed by bending the other end of the electrode connection member in a direction away from the distal end.
Preferably, the electrode connecting member has two parallel and opposite bends at positions close to the pins.
Preferably, the connecting part is provided with an opening.
Preferably, the connecting body is provided with a positioning groove or a positioning hole for positioning.
According to another aspect of the present invention, there is also provided a surge protector device comprising a carrier, a varistor and a pole attachment as described above;
the surge protector comprises a bearing frame, wherein the bearing frame comprises an installation plate, electrode through holes penetrating through two sides are formed in the installation plate, a piezoresistor is installed on the first side of the installation plate, and first pins for plugging and unplugging the surge protector are arranged on the first electrode of the piezoresistor; the electrode connecting piece is arranged on the second side of the mounting plate, the connecting part at one end of the electrode connecting piece is welded with the second electrode of the piezoresistor through the electrode through hole, and the pin at the other end is a second pin for plugging and unplugging the surge protector;
the surge protector still includes tripping device, tripping device installs the second side of mounting panel, tripping device sets up to, electrode connecting piece with when the second electrode welded fastening, tripping device is in the first state electrode connecting piece with when the welding between the second electrode melts, tripping device follows first state automatic switch is to the second state.
In the technical scheme provided by the invention, the electrode connecting piece for the surge protector is integrally formed with the pin for plugging and unplugging the surge protector, and compared with the mode of welding the pin on the electrode connecting piece in the prior art, the electrode connecting piece for the surge protector can reduce extra welding points and connecting parts, thereby not only reducing the welding process, but also improving the production efficiency and the reliability of products.
Drawings
FIG. 1 is a schematic view of the structure of an electrode connection member according to an embodiment of the present invention;
FIG. 2 is a schematic view of a carrier;
FIG. 3 is a schematic view of the loading ledge from another side;
FIG. 4 is a schematic view of the varistor from one side;
FIG. 5 is a schematic view of the varistor from the other side;
FIG. 6 is a schematic view of a configuration in which the piezoresistors are mounted on a carrier;
fig. 7 is a schematic structural view of the electrode connecting member and the trip mechanism mounted on the carrier (the trip mechanism is in a first state);
fig. 8 is a schematic view of the electrode connecting member and the trip mechanism mounted on the carrier (with the trip mechanism in a second state);
fig. 9 is a schematic configuration diagram of the surge protector device as viewed from the outside of the housing of the surge protector device.
Description of reference numerals:
1-a shell; 2-a bearing frame; 21-mounting a plate; 211-electrode vias; 22-a first support; 23-a second support; 24-a rotating shaft; 25-spring connection; 26-a positioning post; 27-error proof pins; 3-a voltage dependent resistor; 31-a varistor body; 32-a first electrode; 321-a connecting part; 322-first pin; 33-a second electrode; 331-a weld; 4-an electrode connection; 41-a connecting body; 42-a connecting portion; 43-pin; 44-positioning grooves; 5-a rotating member; 6-potential storage spring.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The drawings are merely schematic illustrations of the present disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and thus their repetitive description will be omitted.
Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of embodiments of the disclosure. One skilled in the relevant art will recognize, however, that the subject matter of the present disclosure can be practiced without one or more of the specific details, or with other methods, components, devices, steps, and the like. In other instances, well-known structures, methods, devices, implementations, materials, or operations are not shown or described in detail to avoid obscuring aspects of the disclosure.
Spatially relative terms, such as "upper," "lower," "left," "right," and the like, may be used herein for ease of description to describe one element or feature's relationship to another element or feature as illustrated in the figures. It will be understood that the spatial terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "lower" can encompass both an upper and a lower orientation. The device may also be otherwise oriented, such as by rotation through 90 degrees or at other orientations and the spatially relative descriptors used herein interpreted accordingly.
The present invention provides an electrode connecting member for surge protector, as shown in fig. 1, the electrode connecting member 4 is integrally formed; wherein, the electrode connecting member 4 comprises a connecting body 41, a connecting portion 42 formed at one end of the connecting body 41 for welding with one electrode of a varistor of a surge protector, and one pin 43 formed at the other end for inserting and extracting the surge protector.
Preferably, the electrode connecting piece 4 is made of an integrally molded plate body. Wherein the pin 43 is formed by bending the other end of the electrode connecting member 4 in a direction away from the end.
Preferably, the electrode connecting member 4 has two parallel and opposite bends, such as bends at a and B in fig. 1, at positions close to the pins 43. By providing the two bends, the elasticity of the pin 43 during insertion can be increased.
In order to allow the connection portion 42 of the electrode connecting member 4 to be effectively soldered to the electrode of the varistor, an opening is provided in the connection portion 42 so that solder can enter the opening to ensure sufficient soldering between the connection portion 42 and the varistor.
In addition, the connecting body 41 is provided with a positioning groove 44 or a positioning hole for positioning. When the electrode connector 4 is mounted on the carrier frame 2 of the surge protector, the electrode connector 4 can be positioned by the positioning groove 44 or the positioning hole engaging with the positioning post 26 on the carrier frame 2, as shown in fig. 7.
The electrode connecting piece 4 for the surge protector provided by the invention integrally forms the pin for the plug connection of the surge protector, and compared with the mode of welding the pin on the electrode connecting piece in the prior art, the extra welding points and connecting parts can be reduced, so that the welding process can be reduced, and the production efficiency and the reliability of products can be improved.
According to another aspect of the present invention, there is also provided a surge protector device comprising a carrier 2, a varistor 3 and a pole attachment 4 as described above;
as shown in fig. 2 and 3, the carrier 2 includes a mounting plate 21, and an electrode through hole 211 is formed on the mounting plate 21 and penetrates through both sides, where fig. 2 shows a first side of the mounting plate 21, and fig. 3 shows a second side of the mounting plate 21.
Fig. 4 and 5 show the structure of the varistor 3, the varistor 3 comprising a varistor body 31 and a first electrode 32 and a second electrode 33 provided on said varistor body 31; wherein the first electrode 32 is integrally formed with a first pin 322 for plug connection of the surge protector, and the second electrode 33 is welded to the electrode connecting member 4 of the surge protector.
As shown in fig. 6, the piezoresistor 3 is mounted on a first side of the mounting plate 21 with the first electrode 32 facing outward; the electrode connecting piece 4 is installed on the second side of the mounting plate 21, the connecting part 42 at one end of the electrode connecting piece 4 is welded with the second electrode 33 of the piezoresistor 3 through the electrode through hole 211, and the pin 43 at the other end is a second pin for plugging and unplugging the surge protector; wherein, a convex welding part 332 is formed on the second electrode 33 of the piezoresistor 3, and the connecting part 42 of the electrode connecting piece 4 is connected with the welding part 332.
In this embodiment, the first pin 322 and the second pin are respectively bent to a direction away from the terminal end to form an insertion slot, the bearing frame 2 is provided with a first supporting body 22 and a second supporting body 23 (refer to fig. 2 and 3), the first supporting body 22 is inserted into the insertion slot of the first pin 322, and the second supporting body 23 is inserted into the insertion slot of the second pin, so as to respectively increase the stability of the first pin 322 and the second pin during insertion.
The surge protector further comprises a tripping mechanism, the tripping mechanism is installed on the second side of the mounting plate 21, the tripping mechanism is set to be in a first state when the electrode connecting piece 4 is fixedly welded with the second electrode 33, and when the welding between the electrode connecting piece 4 and the second electrode 33 is melted, the tripping mechanism is automatically switched to a second state from the first state.
In the present embodiment, as shown in fig. 7 and 8, the trip mechanism includes a rotor 5 rotatably mounted on the second side of the mounting plate 21 and an energizing spring 6 provided between the rotor 5 and the carrier 2. The rotor 5 is rotatably mounted on the rotating shaft 24 of the mounting plate 21, and one end of the potential storage spring 6 is connected to the rotor 5 and the other end is connected to the spring connecting portion 25 of the carriage 2.
When the electrode connecting piece 4 and the second electrode 33 are in a welding state, the welding of the electrode connecting piece 4 and the second electrode 33 limits the rotating body 5 at a first position, and the potential accumulating spring 6 is kept in a compressed or stretched potential accumulating state; when the solder between the electrode connecting piece 4 and the second electrode 33 is melted, the potential accumulating spring 6 drives the rotating piece 5 to rotate to the second position through the elastic force, so that the electrode connecting piece 4 and the second electrode 33 are separated through the rotating piece 5.
Fig. 7 shows the position in which rotor 5 is restrained when electrode connecting element 4 and second electrode 33 are welded together, with potential accumulating spring 6 in the tensioned state between rotor 5 and carrier 2, although it is also possible to arrange potential accumulating spring 6 in the contracted state, for example, by changing the manner in which potential accumulating spring 6 is mounted. When the varistor 3 is deteriorated and short-circuited, the temperature is gradually increased to melt the solder between the second electrode 33 of the varistor and the electrode connecting member 4, and the restriction of the rotor 5 is removed, and the rotor 5 is rotated about the rotating shaft 24 by the elastic force of the potential accumulating spring 6 in the stretched state from the first position to the second position, as shown in fig. 8.
It will be understood by those skilled in the art that the tripping mechanism is not limited to the above-described structure in the present embodiment, and other tripping mechanisms capable of changing state to isolate the electrode connector 4 from the second electrode 33 when the solder between the electrode connector 4 and the second electrode 33 melts may be used, for example, a translation member capable of translating relative to the carrier 2 may be provided, a spring may be provided between the translation member and the carrier 2, the translation member may be limited to a first position when the electrode connector 4 and the second electrode 33 are in a welding state, the spring may be in a compressed or extended potential accumulation state, and the translation member may move to the welding portion between the electrode connector 4 and the second electrode 33 under the elastic force of the spring to isolate the welding portion when the welding melts.
Further, the surge protector device includes a case 1, and the carrier 2, the varistor 3, and the electrode connecting member 4 are located in the case 1, and fig. 9 shows a structure seen from the outside of the case 1.
The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto. Within the scope of the technical idea of the invention, numerous simple modifications can be made to the technical solution of the invention, including combinations of the individual specific technical features in any suitable way. The invention is not described in detail in order to avoid unnecessary repetition. Such simple modifications and combinations should be considered within the scope of the present disclosure as well.
Claims (7)
1. An electrode attachment member for a surge protector, wherein the electrode attachment member is integrally formed; the electrode connecting piece comprises a connecting main body, a connecting part formed at one end of the connecting main body and used for being welded with one electrode of a piezoresistor of the surge protector, and a pin formed at the other end and used for inserting and pulling the surge protector.
2. The electrode connecting member according to claim 1, wherein the electrode connecting member is made of an integrally molded plate body.
3. The electrode connecting member according to claim 2, wherein the pin is bent from the other end of the electrode connecting member in a direction away from the distal end.
4. The electrode connector according to claim 3, wherein the electrode connector has two parallel and opposite bends near the pin.
5. The electrode connection according to claim 1, wherein the connection part is provided with an opening.
6. The electrode connecting piece according to any one of claims 1 to 5, wherein the connecting body is provided with a positioning groove or a positioning hole for positioning.
7. A surge protector device, characterized in that it comprises a carrier, a varistor and a pole attachment according to any of claims 1-6;
the surge protector comprises a bearing frame, wherein the bearing frame comprises an installation plate, electrode through holes penetrating through two sides are formed in the installation plate, a piezoresistor is installed on the first side of the installation plate, and first pins for plugging and unplugging the surge protector are arranged on the first electrode of the piezoresistor; the electrode connecting piece is arranged on the second side of the mounting plate, the connecting part at one end of the electrode connecting piece is welded with the second electrode of the piezoresistor through the electrode through hole, and the pin at the other end is a second pin for plugging and unplugging the surge protector;
the surge protector still includes tripping device, tripping device installs the second side of mounting panel, tripping device sets up to, electrode connecting piece with when the second electrode welded fastening, tripping device is in the first state electrode connecting piece with when the welding between the second electrode melts, tripping device follows first state automatic switch is to the second state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110479660.2A CN113130159A (en) | 2021-04-30 | 2021-04-30 | Electrode connecting piece for surge protector and surge protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110479660.2A CN113130159A (en) | 2021-04-30 | 2021-04-30 | Electrode connecting piece for surge protector and surge protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113130159A true CN113130159A (en) | 2021-07-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110479660.2A Pending CN113130159A (en) | 2021-04-30 | 2021-04-30 | Electrode connecting piece for surge protector and surge protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113130159A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114614459A (en) * | 2022-04-22 | 2022-06-10 | 浙江泰科天唯电气有限公司 | Surge protector |
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|---|---|---|---|---|
| CN107507744A (en) * | 2017-10-11 | 2017-12-22 | 成都兴业雷安电子有限公司 | A kind of surge protector |
| CN107516886A (en) * | 2017-09-19 | 2017-12-26 | 广西新全通电子技术有限公司 | A kind of quick disjunction preventing arc and arc extinction type surge protection device and its application |
| CN209844547U (en) * | 2019-05-05 | 2019-12-24 | 成都标定科技有限责任公司 | 10kA single-phase PCB type power supply surge protector |
| CN212322756U (en) * | 2020-07-10 | 2021-01-08 | 常州市创捷防雷电子有限公司 | Piezoresistor for multi-pulse surge protector |
| CN212649865U (en) * | 2020-07-22 | 2021-03-02 | 常州市创捷防雷电子有限公司 | Board carries electric surge protector |
| CN214672053U (en) * | 2021-04-30 | 2021-11-09 | 上海辰竹防雷科技有限公司 | Electrode connecting piece for surge protector and surge protector |
-
2021
- 2021-04-30 CN CN202110479660.2A patent/CN113130159A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107516886A (en) * | 2017-09-19 | 2017-12-26 | 广西新全通电子技术有限公司 | A kind of quick disjunction preventing arc and arc extinction type surge protection device and its application |
| CN107507744A (en) * | 2017-10-11 | 2017-12-22 | 成都兴业雷安电子有限公司 | A kind of surge protector |
| CN209844547U (en) * | 2019-05-05 | 2019-12-24 | 成都标定科技有限责任公司 | 10kA single-phase PCB type power supply surge protector |
| CN212322756U (en) * | 2020-07-10 | 2021-01-08 | 常州市创捷防雷电子有限公司 | Piezoresistor for multi-pulse surge protector |
| CN212649865U (en) * | 2020-07-22 | 2021-03-02 | 常州市创捷防雷电子有限公司 | Board carries electric surge protector |
| CN214672053U (en) * | 2021-04-30 | 2021-11-09 | 上海辰竹防雷科技有限公司 | Electrode connecting piece for surge protector and surge protector |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114614459A (en) * | 2022-04-22 | 2022-06-10 | 浙江泰科天唯电气有限公司 | Surge protector |
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| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Liu Zhenhui Inventor after: Li Zhuang Inventor after: Wang Heng Inventor after: Chen Keqi Inventor before: Liu Zhenhui Inventor before: Li Zhuang Inventor before: Wang Heng Inventor before: Zhai Chunpo Inventor before: Chen Keqi |
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Effective date of registration: 20230824 Address after: Room 702, Building 5, No. 518 Xinzhuan Road, Songjiang District, Shanghai Applicant after: SHANGHAI CHENZHU INSTRUMENT Co.,Ltd. Address before: 201602 Room 204, 2nd floor, building 4, 1398 Xinsong Road, Xinqiao Town, Songjiang District, Shanghai Applicant before: Shanghai chenzhu Lightning Protection Technology Co.,Ltd. Applicant before: SHANGHAI CHENZHU INSTRUMENT Co.,Ltd. |