CN221008881U - Thermal element structure of breaker release - Google Patents
Thermal element structure of breaker release Download PDFInfo
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- CN221008881U CN221008881U CN202322611127.4U CN202322611127U CN221008881U CN 221008881 U CN221008881 U CN 221008881U CN 202322611127 U CN202322611127 U CN 202322611127U CN 221008881 U CN221008881 U CN 221008881U
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- 238000005452 bending Methods 0.000 claims abstract description 30
- 239000002184 metal Substances 0.000 claims description 15
- 239000003973 paint Substances 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000009467 reduction Effects 0.000 abstract description 3
- 238000010438 heat treatment Methods 0.000 description 4
- 230000002159 abnormal effect Effects 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000012811 non-conductive material Substances 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model relates to the technical field of circuit breakers, in particular to a thermal element structure of a tripping device of a circuit breaker, which comprises a connecting plate, wherein one end of the connecting plate is fixedly connected with a bending part, the end part of the bending part is fixedly connected with a flow guiding part, the end part of the flow guiding part is fixedly connected with a wiring board, the side wall of the bending part is fixedly connected with a bimetallic strip, the bending part of the bimetallic strip is provided with a socket, the upper end of the connecting plate of the bimetallic strip is fixedly connected with a fixed plate, one end of the fixed plate, which is close to the bimetallic strip, is fixedly connected with a conducting plate, the conducting plate penetrates through the socket, and two sides of the conducting plate are tightly attached to the inner wall of the socket; through additionally installing fixed plate and current-conducting plate on the connecting plate, fixed plate and current-conducting plate conductive temperature rise, and the rethread heat-conducting plate peg graft in the socket in the bimetallic strip, on with heat transfer to the bimetallic strip to compensate heat to the bimetallic strip, solve bimetallic strip heat conduction efficiency reduction problem.
Description
Technical Field
The utility model relates to the field of circuit breakers, in particular to a thermal element structure of a circuit breaker release.
Background
The circuit breaker is a switching device capable of closing, carrying and breaking current under normal loop conditions and closing, carrying and breaking current under abnormal loop conditions within a specified time, the trip is one of parts in the circuit breaker and is mechanically connected with the circuit breaker to release a holding mechanism and automatically break the circuit breaker, and for the thermomagnetic trip, the internal thermal element structure of the thermomagnetic trip is mainly a bimetallic plate and a thermal element plate body, and when the bimetallic plate is heated to a certain degree, the bimetallic plate is bent and deformed, so that the trip device is triggered.
The thermal element structure of the conventional circuit breaker release, for example, the thermal element structure of the circuit breaker release proposed in patent application number CN201620532424.7, is in adhesive connection with the bimetallic strip through the thermal element body, so that the influence on the action characteristic of the bimetallic strip caused by adopting a mechanical connection mode of welding, riveting or threaded connection in the prior art is avoided, and the contact area between the bimetallic strip and an external heating device is reduced or separated from contact when the bimetallic strip is bent to a certain extent by thermal deformation.
In the prior art, for example, in a thermal element structure of a circuit breaker release proposed in patent application number CN201620532424.7, when a bimetal is bent to a certain extent by thermal deformation, the contact area between the bimetal and an external heating device is reduced or separated from contact, so that the heat conduction efficiency of the bimetal is reduced to cause higher heat adjustment temperature, and therefore, the thermal element structure of the circuit breaker release is proposed.
Disclosure of utility model
The present utility model is directed to a thermal element structure of a circuit breaker release, so as to solve the problems set forth in the background art.
The aim of the utility model can be achieved by the following technical scheme:
The thermal element structure of the tripping device of the circuit breaker comprises a connecting plate, wherein one end of the connecting plate is fixedly connected with a bending part, the end part of the bending part is fixedly connected with a flow guiding part, and the end part of the flow guiding part is fixedly connected with a wiring board;
The side wall of the bending part is fixedly connected with a bimetallic strip, the bending part of the bimetallic strip is provided with a socket, the upper end of the connecting plate of the bimetallic strip is fixedly connected with a fixed plate, one end of the fixed plate, which is close to the bimetallic strip, is fixedly connected with a conductive plate, the conductive plate penetrates through the socket, and two sides of the conductive plate are tightly attached to the inner wall of the socket.
Preferably, the end of the conductive plate, which is close to the bimetallic strip, is parallel to the bimetallic strip, a rectangular opening is formed in the conductive plate in a penetrating manner, an elastic component is fixedly connected to one end of the conductive plate, which is close to the bimetallic strip, and the elastic component is located between the conductive plate and the bimetallic strip.
Preferably, the elastic component comprises spring plates, two groups of spring plates are symmetrically arranged, the two groups of spring plates are fixedly connected to the conductive plate, the two groups of spring plates are respectively positioned on two sides of the conductive plate, and the ends of the two groups of spring plates are matched with the bimetallic strip.
Preferably, the guide part is fixedly connected with a mounting frame, the upper end of the mounting frame is fixedly connected with a metal soft plate, the end part of the metal soft plate is fixedly connected with a heat-conducting end, and the heat-conducting end is in contact fit with the bimetallic strip.
Preferably, the surfaces of the two groups of spring plates and the heat conducting plate are coated with insulating heat conducting paint, and the heat conducting end surface is sleeved with a rubber layer.
Preferably, the both sides of the bending part are fixedly connected with fixing blocks, the two groups of fixing blocks are respectively clamped with side plates, the two groups of side plates are respectively provided with a mounting opening and a clamping groove, the both sides of the metal soft plate are respectively fixedly connected with clamping plates, and the fixing blocks and the clamping plates are respectively clamped in the mounting opening and the clamping grooves.
The utility model has the beneficial effects that:
According to the utility model, the fixing plate and the conductive plate are additionally arranged on the connecting plate, the conductive temperature of the fixing plate and the conductive plate is increased, and then the conductive plate is inserted into the socket in the bimetallic strip to transfer heat to the bimetallic strip, so that the heat is compensated for the bimetallic strip, and the problem of reduction of the heat conduction efficiency of the bimetallic strip is solved.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described, and it will be obvious to those skilled in the art that other drawings can be obtained according to these drawings without inventive effort;
FIG. 1 is a schematic view of the overall structure of the present utility model;
FIG. 2 is a schematic overall side elevational view of the present utility model;
FIG. 3 is a schematic view of the structure of the utility model with side plates removed;
FIG. 4 is a schematic diagram of the overall explosive construction of the present utility model;
reference numerals in the drawings are as follows:
1. A connecting plate; 2. a wiring board; 3. a flow guiding part; 4. a bending part; 5. a side plate; 6. bimetallic strips; 7. a fixing plate; 8. a conductive plate; 9. a heat conductive plate; 10. a rectangular opening; 11. a spring plate; 12. a metal soft board; 13. a mounting frame; 14. a heat conduction end; 15. a rubber layer; 16. a socket; 17. a clamping plate; 18. a fixed block; 19. a clamping groove; 20. and (5) an installation port.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The thermal element structure of the breaker release comprises a connecting plate 1, wherein one end of the connecting plate 1 is fixedly connected with a bending part 4, the end part of the bending part 4 is fixedly connected with a flow guiding part 3, and the end part of the flow guiding part 3 is fixedly connected with a wiring board 2;
The side wall of the bending part is fixedly connected with a bimetallic strip 6, a socket 16 is formed in the bending part of the bimetallic strip 6, the upper end of a connecting plate 1 of the bimetallic strip 6 is fixedly connected with a fixing plate 7, one end, close to the bimetallic strip 6, of the fixing plate 7 is fixedly connected with a conducting plate 8, the conducting plate 8 penetrates through the socket 16, and two sides of the conducting plate 8 are tightly attached to the inner wall of the socket 16.
In the prior art, for example, in the thermal element structure of the circuit breaker release proposed in the patent application number CN201620532424.7, when the bimetal 6 is deformed and bent to a certain extent by heating, the contact area between the bimetal 6 and an external heating device is reduced or separated, so that the heat conduction efficiency of the bimetal 6 is reduced, and the heat adjustment temperature is higher, as shown in fig. 1-4, in the thermal element structure of the circuit breaker release, current flows from the connecting plate 1 to the bending part 4, then flows to the guiding part 3, and then flows to the connecting part, the bimetal 6 is fixedly connected with the bending part 4, and can conduct current, when the circuit condition is abnormal, the bimetal 6 can be heated to cause deformation and bending of the bending part of the bimetal 6, and by additionally installing the fixing plate 7 and the conductive plate 8 on the connecting plate 1, the conductive temperature of the fixing plate 7 and the conductive plate 8 is increased, and then the conductive plate 9 is spliced in the socket 16 in the bimetal 6, and the socket 16 area is larger than the area of the conductive plate 9, and the conductive plate 9 can not be bent, and the heat conduction plate 9 always transfers heat to the bimetal 6, so that the bimetal 6 is compensated for heat, and the heat conduction efficiency of the bimetal 6 is reduced.
The end of the conducting plate 8, which is close to the bimetallic strip 6, is parallel to the bimetallic strip 6, a rectangular opening 10 is formed in the conducting plate 8 in a penetrating mode, an elastic component is fixedly connected to one end of the conducting plate 8, which is close to the bimetallic strip 6, and the elastic component is located between the conducting plate 8 and the bimetallic strip 6.
As shown in fig. 2, the end of the conductive plate 8, which is close to the bimetal 6, is parallel to the bimetal 6, so that the side wall of the conductive plate 9 is in close contact with the inner wall of the socket 16, the material of the bimetal 6 can be soft or hard, the rectangular opening 10 is arranged to reduce the area of the current flow section in the conductive plate 8 and reduce the resistance of the conductive plate 8, thereby increasing the temperature of the conductive plate 8, compensating more heat for the bimetal 6, and the elastic component prevents the contact between the bimetal 6 and the conductive plate 8 to form a loop.
The elastic component includes the spring plate 11, and the spring plate 11 symmetry is provided with two sets of, and two sets of spring plates 11 all rigid coupling are on conducting plate 8, and two sets of spring plates 11 are located the conducting plate 9 both sides respectively, and two sets of spring plates 11 tip all cooperates with bimetallic strip 6.
As shown in fig. 2, the spring plate 11 assists in bending the bimetal 6 and prevents the contact between the bimetal 6 and the conductive plate 8 from forming a loop.
The installation frame 13 is fixedly connected to the flow guiding part 3, the metal soft plate 12 is fixedly connected to the upper end of the installation frame 13, the heat-conducting end 14 is fixedly connected to the end part of the metal soft plate 12, and the heat-conducting end 14 is in contact fit with the bimetallic strip 6.
As shown in fig. 3, when the current flows through the current guiding portion 3, the metal soft board 12 conducts electricity through the mounting frame 13, the temperature rises, and heat is conducted through the heat conducting end 14, when the bimetal 6 is bent to a certain extent, the bimetal 6 is indirectly contacted with the heat conducting end 14, the heat conducting end 14 conducts heat to the bimetal 6, the heat is further compensated for the bimetal 6, and the metal soft board 12 is deformed under pressure, so that bending of the bimetal 6 is not affected.
The surfaces of the spring plate 11 and the heat conducting plate 9 are coated with insulating heat conducting paint, and the surface of the heat conducting end 14 is sleeved with a rubber layer 15.
As shown in fig. 2, the insulating and heat conducting paint prevents the spring plate 11 or the heat conducting plate 9 from being electrically connected with the bimetal 6 to form a loop, thereby avoiding burn of elements caused by increasing current in the circuit, and the rubber layer 15 prevents the loop from being formed between the heat conducting end 14 and the bimetal 6.
The fixed blocks 18 are fixedly connected to two sides of the bending part 4, the side plates 5 are clamped on the two groups of fixed blocks 18, the mounting openings 20 and the clamping grooves 19 are formed in the two groups of side plates 5, the clamping plates 17 are fixedly connected to two sides of the metal soft plate 12, and the fixed blocks 18 and the clamping plates 17 are respectively clamped in the mounting openings 20 and the clamping grooves 19.
As shown in fig. 2, the side plates 5 are fixed by the fixing blocks 18 and the mounting openings 20, so as to protect both sides of the thermal element, meanwhile, the side plates 5 are made of non-conductive materials, so that a current loop is prevented from being formed, and the side plates 5 support the metal soft plate 12, so that the metal soft plate 12 is prevented from bending from the bottom.
The working principle of the thermal element structure of the circuit breaker release provided by the utility model is as follows:
The fixing way in the thermal element structure of the circuit breaker release comprises bonding, current flows from a connecting plate 1 to a bending part 4, then flows to a flow guiding part 3 and then flows to a wiring part, a bimetallic strip 6 is fixedly connected with the bending part 4 and can conduct electricity, when the circuit condition is abnormal, the bimetallic strip 6 can be heated to cause deformation and bending of the bending part of the bimetallic strip 6, a fixing plate 7 and a conducting plate 8 are additionally arranged on the connecting plate 1, the conducting temperature of the fixing plate 7 and the conducting plate 8 is increased, the conducting plate 9 is inserted into a socket 16 in the bimetallic strip 6 through the conducting plate 9, the conducting plate 9 always transmits heat to the bimetallic strip 6, so that heat is compensated for the bimetallic strip 6, the problem of heat conduction efficiency reduction of the bimetallic strip 6 is solved, a metal soft plate 12 can conduct electricity through a mounting frame 13, the temperature is increased, the bimetallic strip 6 can indirectly contact with a heat conducting end 14 through heat conduction, and when the bimetallic strip 6 is bent to a certain extent, the heat conducting end 14 can conduct heat to the bimetallic strip 6, and further compensate heat for the bimetallic strip 6.
The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims.
Claims (6)
1. The thermal element structure of the breaker release comprises a connecting plate (1) and is characterized in that one end of the connecting plate (1) is fixedly connected with a bending part (4), the end part of the bending part (4) is fixedly connected with a flow guiding part (3), and the end part of the flow guiding part (3) is fixedly connected with a wiring board (2);
The utility model discloses a bimetal strip, including bending portion (4), bimetal strip (6), socket (16) have been seted up to bend portion of bimetal strip (6), and bimetal strip (6) connecting plate (1) upper end fixedly connected with fixed plate (7), and fixed plate (7) are close to bimetal strip (6) one end fixedly connected with conducting plate (8), and conducting plate (8) run through in socket (16), and conducting plate (8) both sides are hugged closely with socket (16) inner wall.
2. The thermal element structure of the circuit breaker release according to claim 1, wherein the end of the conductive plate (8) close to the bimetallic strip (6) is parallel to the bimetallic strip (6), a rectangular opening (10) is formed in the conductive plate (8) in a penetrating manner, an elastic component is fixedly connected to one end of the conductive plate (8) close to the bimetallic strip (6), and the elastic component is located between the conductive plate (8) and the bimetallic strip (6).
3. The thermal element structure of the circuit breaker release according to claim 2, wherein the elastic component comprises spring plates (11), the spring plates (11) are symmetrically provided with two groups, the two groups of spring plates (11) are fixedly connected to the conductive plate (8), the two groups of spring plates (11) are respectively positioned at two sides of the conductive plate (9), and the ends of the two groups of spring plates (11) are matched with the bimetallic strip (6).
4. The thermal element structure of the circuit breaker release according to claim 3, wherein the guide part (3) is fixedly connected with a mounting frame (13), the upper end of the mounting frame (13) is fixedly connected with a metal soft board (12), the end part of the metal soft board (12) is fixedly connected with a heat conducting end (14), and the heat conducting end (14) is in contact fit with the bimetallic strip (6).
5. The thermal element structure of a circuit breaker release according to claim 4, wherein the surfaces of the two groups of spring plates (11) and the heat conducting plates (9) are coated with insulating heat conducting paint, and the surfaces of the heat conducting ends (14) are sleeved with rubber layers (15).
6. The thermal element structure of the circuit breaker release according to claim 5, wherein two sides of the bending part (4) are fixedly connected with fixing blocks (18), two groups of fixing blocks (18) are respectively clamped with side plates (5), two groups of side plates (5) are respectively provided with a mounting opening (20) and a clamping groove (19), two sides of the metal soft board (12) are respectively fixedly connected with a clamping plate (17), and the fixing blocks (18) and the clamping plates (17) are respectively clamped in the mounting opening (20) and the clamping groove (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322611127.4U CN221008881U (en) | 2023-09-25 | 2023-09-25 | Thermal element structure of breaker release |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322611127.4U CN221008881U (en) | 2023-09-25 | 2023-09-25 | Thermal element structure of breaker release |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221008881U true CN221008881U (en) | 2024-05-24 |
Family
ID=91090853
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322611127.4U Active CN221008881U (en) | 2023-09-25 | 2023-09-25 | Thermal element structure of breaker release |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221008881U (en) |
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2023
- 2023-09-25 CN CN202322611127.4U patent/CN221008881U/en active Active
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