Circuit breaker electricity taking and temperature measuring module and circuit breaker

Abstract

The utility model belongs to the technical field of low-voltage electric appliances, and discloses a circuit breaker electricity taking and temperature measuring module and a circuit breaker. The circuit breaker electricity-taking temperature measurement module comprises a first circuit board and a conductive connecting piece. Wherein the first circuit board is arranged below a static contact of the circuit breaker, and the first circuit board is provided with a second connecting hole and a conductive part arranged at the outer edge of the second connecting hole; the conductive connecting piece penetrates through the first connecting hole and the second connecting hole in the static contact so as to connect the first circuit board and the static contact, and the peripheral wall of the conductive connecting piece is in contact with the conductive part. According to the circuit breaker electricity-taking and temperature-measuring module, the conductive part is integrated on the first circuit board, so that the conductive connecting piece is in contact with the conductive part while connecting the static contact and the first circuit board, the electric connection between the static contact and the first circuit board is realized, the process of additionally installing the conductive part is omitted, and the production efficiency is improved. Therefore, the assembling difficulty between the static contact and the first circuit board is reduced, and the assembling efficiency between the static contact and the first circuit board is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of low-voltage electrical appliances, in particular to a power-taking and temperature-measuring module for a circuit breaker and a circuit breaker. Background Technique

[0002] A circuit breaker includes a release, a communication module, a static contact, a moving contact, and other components. Among them, the communication module, the release, and other components that require electric energy generally obtain power from the static contact through wires. However, the volume of the static contact is limited. Therefore, it is difficult to weld multiple power-taking wires at the same time, making the assembly difficulty of the circuit breaker relatively high, which also affects the assembly efficiency of the circuit breaker to a certain extent.

[0003] Based on the above problems, some circuit breakers first electrically connect the static contact to a circuit board, and then supply power to other components through the circuit board. The circuit board can provide more electrical connection positions to achieve electrical connection with multiple components. The static contact and the circuit board are generally first installed together by bolts with conductive properties, and then a conductive part is provided so that one end of the conductive part is connected to the bolt and the other end is connected to the circuit board to achieve electrical connection between the static contact and the circuit board. This connection method between the static contact and the circuit board has the following defects: (1) The conductive part is separately arranged from the bolt and the circuit board, making the assembly process between the static contact and the circuit board relatively complex; (2) The size of the conductive part is small and it is inconvenient to pick up, resulting in a relatively high assembly difficulty.

[0004] Therefore, it is urgent to propose a power-taking and temperature-measuring module for a circuit breaker and a circuit breaker to solve the above technical problems. Content of the Utility Model

[0005] According to one aspect of the utility model, the utility model provides a power-taking and temperature-measuring module for a circuit breaker, which integrates a conductive part on a first circuit board, so that when the conductive connecting piece connects the static contact and the first circuit board, it contacts the conductive part, realizing the electrical connection between the static contact and the first circuit board, saving the process of additionally installing the conductive part, reducing the assembly difficulty between the static contact and the first circuit board, and thus improving the assembly efficiency between the static contact and the first circuit board.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] A power-taking and temperature-measuring module for a circuit breaker, the circuit breaker includes a static contact, and a first connection hole is provided on the static contact. The power-taking and temperature-measuring module for a circuit breaker includes:

[0008] A first circuit board, which is arranged below the static contact. A second connection hole and a conductive part arranged at the outer edge of the second connection hole are provided on the first circuit board;

[0009] A conductive connecting piece is inserted through the first connection hole and the second connection hole to connect the first circuit board and the static contact, and the outer peripheral wall of the conductive connecting piece contacts the conductive part.

[0010] Optionally, the conductive part is a conductive sheet, and a third connection hole opposite to the second connection hole is provided on the conductive sheet. The conductive connecting piece is inserted through the third connection hole, and the outer peripheral wall of the conductive connecting piece is attached to the inner peripheral wall of the third connection hole.

[0011] Optionally, the conductive parts are provided at the outer edges at both ends in the axial direction of the second connection hole.

[0012] Optionally, the first connection hole is a threaded hole. The conductive connecting piece includes a head and a rod portion connected to the head. An external thread is provided on the rod portion. The rod portion is inserted through the second connection hole and connected to the threaded hole through the external thread. The head abuts against the first circuit board or the conductive part.

[0013] Optionally, a plurality of power-taking connection holes are provided on the first circuit board. Each power-taking connection hole is connected to a power-taking wire, and a first creepage-increasing notch is provided between adjacent two power-taking connection holes.

[0014] Optionally, a power-inlet temperature measuring element and a power-inlet temperature signal transmission port are further provided on the first circuit board. A first heat-conducting piece is provided between the end of the power-inlet temperature measuring element and the static contact. The power-inlet temperature signal transmission port is used for plugging with the connector of the power-inlet temperature signal transmission line.

[0015] Optionally, a second creepage-increasing notch is provided between the power-inlet temperature measuring element and the second connection hole.

[0016] Optionally, the circuit breaker power-taking and temperature measuring module further includes a second circuit board arranged below the static contact. A power-inlet temperature measuring element and a power-inlet temperature signal transmission port are provided on the second circuit board. A first heat-conducting piece is provided between the end of the power-inlet temperature measuring element and the static contact. The power-inlet temperature signal transmission port is used for plugging with the connector of the power-inlet temperature signal transmission line.

[0017] Optionally, the circuit breaker power-taking and temperature measuring module further includes a third circuit board arranged at the outgoing line end of the circuit breaker. An outgoing line end temperature measuring element and an outgoing line end temperature signal transmission port are provided on the third circuit board. A second heat-conducting piece is provided between the end of the outgoing line end temperature measuring element and the outgoing line end wiring board of the circuit breaker. The outgoing line end temperature signal transmission port is used for plugging with the connector of the outgoing line end temperature signal transmission line.

[0018] Optionally, the third circuit board is perpendicular to the outgoing terminal wiring board, and the temperature measuring component at the outgoing terminal is arranged at the end of the third circuit board close to the outgoing terminal wiring board and extends towards the outgoing terminal wiring board.

[0019] According to another aspect of the present invention, the present invention provides a circuit breaker, including a base, a static contact, and the circuit breaker power-taking and temperature-measuring module according to any one of the above technical solutions, and both the static contact and the circuit breaker power-taking and temperature-measuring module are arranged on the base.

[0020] Optionally, the first circuit board of the circuit breaker power-taking and temperature-measuring module is arranged on the outer bottom wall of the base, and the incoming terminal temperature measuring component and the incoming terminal temperature signal transmission port are arranged on the first circuit board; the circuit breaker power-taking and temperature-measuring module further includes a third circuit board arranged at the outgoing terminal of the circuit breaker, and the third circuit board penetrates through the base and is perpendicular to the outgoing terminal wiring board.

[0021] Optionally, the first circuit board of the circuit breaker power-taking and temperature-measuring module is arranged on the outer bottom wall of the base; the circuit breaker power-taking and temperature-measuring module further includes a second circuit board arranged below the static contact and a third circuit board arranged at the outgoing terminal of the circuit breaker, and both the second circuit board and the third circuit board are arranged on the outer bottom wall of the base.

[0022] The beneficial effects of the present invention:

[0023] The present invention provides a circuit breaker power-taking and temperature-measuring module, including a first circuit board and a conductive connecting piece. The static contact of the circuit breaker is first electrically connected to the first circuit board, and then the first circuit board supplies power to other components, so that the static contact only needs to provide an electrical connection position to supply power to the first circuit board. The first circuit board can relatively easily provide multiple electrical connection positions to supply power to other components. Compared with the prior art in which the static contact directly supplies power to other components, the installation difficulty is greatly reduced.

[0024] Moreover, a conductive part is integrated on the first circuit board. The conductive connecting piece contacts the conductive part while connecting the static contact and the first circuit board, realizing the electrical connection between the static contact and the first circuit board. With this setting, there is no need to additionally install a conductive part, simplifying the installation process, reducing the installation difficulty, and thus improving the installation efficiency.

[0025] The present invention also provides a circuit breaker, including a base, a static contact, and the above-mentioned circuit breaker power-taking and temperature-measuring module. Since the circuit breaker adopts the above-mentioned circuit breaker power-taking and temperature-measuring module, the assembly difficulty is relatively low and the production efficiency is relatively high. Description of the Drawings

[0026] To more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the attached drawings required for the description of the embodiments of the present utility model. Obviously, the attached drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other attached drawings can also be obtained based on the content of the embodiments of the present utility model and these attached drawings.

[0027] Figure 1 It is a schematic structural diagram of the first circuit board from a perspective provided by the embodiment of the present utility model;

[0028] Figure 2 It is a schematic structural diagram of the first circuit board from another perspective provided by the embodiment of the present utility model;

[0029] Figure 3 It is a schematic structural diagram of the first circuit board from yet another perspective provided by the embodiment of the present utility model;

[0030] Figure 4 It is a partial schematic diagram of the assembly drawing of the first circuit board and the static contact provided by the embodiment of the present utility model;

[0031] Figure 5 It is a schematic structural diagram of the third circuit board provided by the embodiment of the present utility model;

[0032] Figure 6 It is a partial schematic diagram of the assembly drawing of the third circuit board and the outgoing terminal wiring board provided by the embodiment of the present utility model;

[0033] Figure 7 It is a schematic structural diagram of the second circuit board provided by the embodiment of the present utility model;

[0034] Figure 8 It is a schematic diagram of the circuit breaker with the bottom plate hidden provided by the embodiment of the present utility model.

[0035] In the figure:

[0036] 10. Static contact; 20. Outgoing terminal wiring board; 30. Base; 40. Bolt;

[0037] 100. First circuit board; 110. Second connection hole; 120. Conductive part; 121. Third connection hole; 130. Power-taking connection hole; 140. First creepage-increasing notch; 150. Incoming line end temperature measuring element; 160. Incoming line end temperature signal transmission port; 170. Second creepage-increasing notch;

[0038] 200. Conductive connecting piece; 210. Head; 220. Rod part;

[0039] 300. Second circuit board; 310. Connection notch;

[0040] 400, the third circuit board; 410, the temperature measuring component at the outgoing line end; 420, the temperature signal transmission port at the outgoing line end; 430, the avoidance groove. Specific embodiments

[0041] The present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present utility model, rather than limiting the present utility model. In addition, it should be noted that for the convenience of description, only the parts related to the present utility model are shown in the drawings, rather than all the structures.

[0042] In the description of the present utility model, unless otherwise clearly defined and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0043] In the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features between them. Moreover, the first feature being "above", "above", and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "below", and "under" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is lower than that of the second feature.

[0044] In the description of this embodiment, the orientation or positional relationships such as "above", "below", "left", and "right" are based on the orientation or positional relationships shown in the drawings. It is only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be understood as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0045] This embodiment provides a power-taking temperature measuring module for a circuit breaker. A conductive part is integrated on the first circuit board, so that when the conductive connecting piece connects the static contact and the first circuit board, it contacts the conductive part at the same time, realizing the electrical connection between the static contact and the first circuit board, saving the process of additionally installing the conductive part, reducing the assembly difficulty between the static contact and the first circuit board, and thus improving the assembly efficiency between the static contact and the first circuit board.

[0046] Specifically, as Figures 1-4 shown, the power-taking and temperature-measuring module of the circuit breaker includes a first circuit board 100 and a conductive connecting member 200. Among them, the first circuit board 100 is arranged below the static contact 10 of the circuit breaker. The static contact 10 is provided with a first connection hole, and the first circuit board 100 is provided with a second connection hole 110 and a conductive part 120 arranged at the outer edge of the second connection hole 110. The conductive connecting member 200 passes through the first connection hole and the second connection hole 110 to connect the first circuit board 100 and the static contact 10, and the outer peripheral wall of the conductive connecting member 200 contacts the conductive part 120.

[0047] For the power-taking and temperature-measuring module of the circuit breaker provided in this embodiment, by integrating the conductive part 120 on the first circuit board 100 and making the conductive connecting member 200 contact the conductive part 120 while connecting the first circuit board 100 and the static contact 10, the first circuit board 100 is fixed, and the electrical connection between the first circuit board 100 and the static contact 10 is realized. With such a setting, there is no need to additionally install the conductive part 120, which simplifies the installation process, reduces the installation difficulty, and thus improves the installation efficiency.

[0048] Moreover, for the solution of taking power from the static contact 10 through the first circuit board 100 and then supplying power from the first circuit board 100 to other components, compared with the prior art in which other components directly take power from the static contact 10, the static contact 10 only needs to provide one electrical connection position to supply power to the first circuit board 100. The first circuit board 100 can relatively easily provide multiple electrical connection positions to supply power to other components, and the installation difficulty is greatly reduced.

[0049] Optionally, continue to refer to Figure 1 and Figure 2 , the conductive part 120 is a conductive sheet. The conductive sheet is provided with a third connection hole 121 opposite to the second connection hole 110. The conductive connecting member 200 passes through the third connection hole 121, and the outer peripheral wall of the conductive connecting member 200 is attached to the inner peripheral wall of the third connection hole 121. That is, the conductive connecting member 200 sequentially passes through the second connection hole 110, the third connection hole 121, and the first connection hole. By setting the conductive part 120 as a conductive sheet and making the outer peripheral wall of the conductive connecting member 200 attached to the inner peripheral wall of the conductive sheet, the contact area between the conductive sheet and the conductive connecting member 200 is relatively large, improving the reliability of the electrical connection between the static contact 10 and the first circuit board 100.

[0050] Further, continue to refer to Figures 1-3, conductive portions 120 are provided at the outer edges of both ends of the second connection hole 110 in the axial direction. With such a setting, the contact area between the conductive connector 200 and the conductive portion 120 is further increased, thereby improving the reliability of the electrical connection between the static contact 10 and the first circuit board 100.

[0051] Optionally, referring further to Figure 4 , the first connection hole is a threaded hole, the conductive connector 200 includes a head portion 210 and a rod portion 220 connected to the head portion 210. An external thread is provided on the rod portion 220. The rod portion 220 passes through the second connection hole 110 and is connected to the threaded hole through the external thread. The head portion 210 abuts against the first circuit board 100 or the conductive portion 120. The structure of the conductive connector 200 is simple, and the static contact 10 and the first connector are connected by means of threaded connection, and the connection reliability is relatively good.

[0052] Specifically, in this embodiment, conductive sheets are provided at the outer edges of both ends of the second connection hole 110 in the axial direction. The rod portion 220 sequentially passes through the third connection hole 121 on the conductive sheet below the first circuit board 100, the second connection hole 110, the third connection hole 121 on the conductive sheet above the first circuit board 100, and the first connection hole. The head portion 210 abuts against the conductive sheet below the first circuit board 100. With such a setting, the head portion 210 of the conductive connector 200, the rod portion 220 located below the first circuit board 100, the rod portion 220 located above the first circuit board 100, and the head portion 210 will all contact the conductive sheet, so that the contact area between the conductive connector 200 and the conductive sheet is relatively large, thereby improving the reliability of the electrical connection between the static contact 10 and the first circuit board 100.

[0053] Optionally, the conductive sheet can be a copper foil.

[0054] Furthermore, referring further to Figure 1 and Figure 2 , a plurality of power-taking connection holes 130 are provided on the first circuit board 100. Each power-taking connection hole 130 is connected to a power-taking wire. A first creepage-increasing notch 140 is provided between adjacent two power-taking connection holes 130. The power-taking wire is generally installed in the power-taking connection hole 130 by welding. The welding process is simple, easy to process, and has a relatively high connection strength. By providing the first creepage-increasing notch 140 between two power-taking connection holes 130, the creepage distance between adjacent two power-taking wires is increased, and the risk of electrical connection between adjacent two power-taking wires is reduced.

[0055] Furthermore, referring further to Figure 1 and Figure 2, in a possible embodiment, a temperature measuring component 150 for the incoming line end is further provided on the first circuit board 100. A first heat conducting component is provided between the end of the temperature measuring component 150 for the incoming line end and the static contact 10. By integrating the temperature measuring component 150 for the incoming line end on the first circuit board 100, the temperature of the incoming line end of the circuit breaker can be detected. Moreover, by providing the first heat conducting component between the temperature measuring component 150 for the incoming line end and the static contact 10, the temperature of the static contact 10 can be quickly transferred to the temperature measuring component 150 for the incoming line end, improving the accuracy of temperature measurement of the temperature measuring component 150 for the incoming line end.

[0056] Moreover, a temperature signal transmission port 160 for the incoming line end is further provided on the first circuit board 100. The temperature signal transmission port 160 for the incoming line end is used for plugging with the connector of the temperature signal transmission line for the incoming line end. By providing the temperature signal transmission port 160 for the incoming line end with a quick plug structure, the assembly efficiency between the first circuit board 100 and the temperature signal transmission line for the incoming line end can be improved.

[0057] Further, continue to refer to Figure 1 and Figure 2 , a second creepage distance increasing notch 170 is provided between the temperature measuring component 150 for the incoming line end and the second connection hole 110. By providing the second creepage distance increasing notch 170, the creepage distance between the second connection hole 110 and the temperature measuring component 150 for the incoming line end is increased, thereby reducing the discharge risk between the temperature measuring component 150 for the incoming line end and the conductive connecting component 200.

[0058] Optionally, the temperature measuring component 150 for the incoming line end can be a thermistor.

[0059] Optionally, the first heat conducting component can be formed by coating a heat conducting material on the temperature measuring component 150 for the incoming line end.

[0060] Further, as Figure 5 and Figure 6 shown, the power taking and temperature measuring module of the circuit breaker further includes a third circuit board 400 provided at the outgoing line end of the circuit breaker. A temperature measuring component 410 for the outgoing line end is provided on the third circuit board 400. A second heat conducting component is provided between the end of the temperature measuring component 410 for the outgoing line end and the outgoing line end connection board 20 of the circuit breaker. By integrating the temperature measuring component 410 for the outgoing line end on the third circuit board 400, the temperature of the outgoing line end of the circuit breaker can be detected. Moreover, by providing the second heat conducting component between the temperature measuring component 410 for the outgoing line end and the outgoing line end connection board 20, the temperature of the outgoing line end connection board 20 can be quickly transferred to the temperature measuring component 410 for the outgoing line end, improving the accuracy of temperature measurement of the temperature measuring component 410 for the outgoing line end.

[0061] Moreover, a temperature signal transmission port 420 for the outgoing line end is also provided on the third circuit board 400. The temperature signal transmission port 420 for the outgoing line end is used for plugging with the connector of the temperature signal transmission line for the outgoing line end. By providing the temperature signal transmission port 420 for the outgoing line end with a quick plug structure, the assembly efficiency between the third circuit board 400 and the temperature signal transmission line for the outgoing line end can be improved.

[0062] Optionally, the second heat conducting member can be formed by coating a heat conducting material on the temperature measuring member 410 for the outgoing line end.

[0063] Optionally, the temperature measuring member 410 for the outgoing line end can be a thermistor.

[0064] Optionally, continue to refer to Figure 5 , a plurality of avoidance grooves 430 are provided on the third circuit board 400. The avoidance grooves 430 are used for avoiding other components inside the circuit breaker.

[0065] Furthermore, continue to refer to Figure 6 , the third circuit board 400 is perpendicular to the outgoing line end wiring board 20. The temperature measuring member 410 for the outgoing line end is arranged at the end of the third circuit board 400 close to the outgoing line end wiring board 20 and extends towards the outgoing line end wiring board 20. With such an arrangement, the occupied space of the third circuit board 400 can be reduced, and the height of the temperature measuring member 410 for the outgoing line end on the third circuit board 400 can also be reduced.

[0066] Furthermore, as Figure 7 and Figure 8 shown, in another possible embodiment, the incoming line end temperature measuring member 150 may not be integrated on the first circuit board 100. Instead, a second circuit board 300 is additionally provided. The second circuit board 300 is arranged below the static contact 10. The incoming line end temperature measuring member 150 is provided on the second circuit board 300. A first heat conducting member is provided between the end of the incoming line end temperature measuring member 150 and the static contact 10. By providing the second circuit board 300 integrated with the incoming line end temperature measuring member 150, the temperature of the incoming line end of the circuit breaker can be detected. Moreover, by providing the first heat conducting member between the incoming line end temperature measuring member 150 and the static contact 10, the temperature of the static contact 10 can be quickly transmitted to the incoming line end temperature measuring member 150, improving the accuracy of temperature measurement of the incoming line end temperature measuring member 150.

[0067] Moreover, an incoming line end temperature signal transmission port 160 is also provided on the first circuit board 100. The incoming line end temperature signal transmission port 160 is used for plugging with the connector of the incoming line end temperature signal transmission line. By providing the incoming line end temperature signal transmission port 160 with a quick plug structure, the assembly efficiency between the first circuit board 100 and the incoming line end temperature signal transmission line can be improved.

[0068] It can be understood that in a specific embodiment, as Figure 4 and Figure 6As shown in the figure, the power-taking and temperature-measuring module of the circuit breaker includes a first circuit board 100 integrating a temperature-measuring component 150 at the incoming line end and a third circuit board 400 vertically arranged with respect to the outgoing line terminal board 20. In another specific embodiment, as Figure 8 shown, the power-taking and temperature-measuring module of the circuit breaker may further include a first circuit board 100 without integrating a temperature-measuring module at the incoming line end, a second circuit board 300, and a third circuit board 400. Moreover, in this embodiment, the third circuit board 400 may be arranged vertically or horizontally. When the third circuit board 400 is arranged horizontally, its structure may be the same as that of the second circuit board 300.

[0069] Furthermore, referring continuously to Figure 7 , a connection notch 310 is provided on the second circuit board 300. The connection notch 310 is connected to the base 30 of the circuit breaker through a bolt 40 to fix the second circuit board 300 on the base 30.

[0070] This embodiment also provides a circuit breaker, which includes a base 30, a static contact 10, and the above-mentioned power-taking and temperature-measuring module of the circuit breaker. The static contact 10 and the power-taking and temperature-measuring module of the circuit breaker are both arranged on the base 30.

[0071] Since the above-mentioned power-taking and temperature-measuring module of the circuit breaker is adopted, the assembly difficulty of this circuit breaker is relatively low and the production efficiency is relatively high.

[0072] Furthermore, in a possible embodiment, the circuit breaker further includes a comprehensive protection module. One end of a power-taking wire is electrically connected to the first circuit board 100, and the other end is electrically connected to the comprehensive protection module to supply power to the comprehensive protection module. Moreover, the incoming line signal transmission line and the outgoing line signal transmission line are also both electrically connected to the comprehensive protection module. The comprehensive protection module performs operations on the obtained incoming line temperature and outgoing line temperature and controls the circuit breaker to avoid damage to the circuit or load due to excessive internal temperature of the circuit breaker.

[0073] Optionally, in a possible embodiment, the first circuit board 100 of the power-taking and temperature-measuring module of the circuit breaker is arranged on the outer bottom wall of the base 30. The first circuit board 100 is provided with a temperature-measuring component 150 at the incoming line end and a temperature signal transmission port 160 at the incoming line end. The power-taking and temperature-measuring module of the circuit breaker further includes a third circuit board 400 arranged at the outgoing line end of the circuit breaker. The third circuit board 400 penetrates through the base 30 and is perpendicular to the outgoing line terminal board 20.

[0074] Optionally, as Figure 8 shown, in another possible embodiment, the first circuit board 100 of the power-taking and temperature-measuring module of the circuit breaker is arranged on the outer bottom wall of the base 30. The power-taking and temperature-measuring module of the circuit breaker further includes a second circuit board 300 arranged below the static contact 10 and a third circuit board 400 arranged at the outgoing line end of the circuit breaker. Both the second circuit board 300 and the third circuit board 400 are arranged on the outer bottom wall of the base 30.

[0075] Optionally, in order to protect the first circuit board 100, the second circuit board 300 and the third circuit board 400, a bottom plate (not shown in the figure) is further provided outside the base 30, and the first circuit board 100, the second circuit board 300 and the third circuit board 400 are placed between the bottom plate and the base 30.

[0076] Obviously, the above embodiments of the present invention are merely examples for clearly explaining the present invention, rather than limitations on the implementation manners of the present invention. For those of ordinary skill in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A circuit breaker power supply and temperature measurement module, wherein the circuit breaker comprises a static contact (10), wherein the static contact (10) is provided with a first connection hole, wherein: The circuit breaker power supply and temperature measurement module comprises: A first circuit board (100) is arranged below the stationary contact (10), the first circuit board (100) being provided with a second connection hole (110) and a conductive portion (120) arranged at the outer edge of the second connection hole (110); A conductive connecting member (200) is inserted through the first connecting hole and the second connecting hole (110) to connect the first circuit board (100) and the stationary contact (10), and an outer peripheral wall of the conductive connecting member (200) is in contact with the conductive portion (120).

2. The circuit breaker power supply and temperature measurement module according to claim 1, characterized in that: The conductive part (120) is a conductive sheet, a third connection hole (121) opposite to the second connection hole (110) is provided on the conductive sheet, the conductive connecting member (200) is passed through the third connection hole (121), and the outer peripheral wall of the conductive connecting member (200) is attached to the inner peripheral wall of the third connection hole (121).

3. The circuit breaker power supply and temperature measurement module according to claim 1, characterized in that: The conductive parts (120) are provided at the outer edges of both ends of the second connection hole (110) in the axial direction.

4. The circuit breaker power supply and temperature measurement module according to claim 1, characterized in that: The first connection hole is a threaded hole, and the conductive connector (200) comprises a head (210) and a rod (220) connected to the head (210), and the rod (220) is provided with an external thread. The rod (220) is passed through the second connection hole (110) and is connected to the threaded hole via the external thread, and the head (210) abuts against the first circuit board (100) or the conductive part (120).

5. The circuit breaker power supply and temperature measurement module according to claim 1, characterized in that: The first circuit board (100) is provided with a plurality of power connection holes (130), each of the power connection holes (130) is connected to a power lead, and a first creepage increasing notch (140) is provided between two adjacent power connection holes (130).

6. The circuit breaker power supply and temperature measurement module according to claim 1, characterized in that: The first circuit board (100) is also provided with an incoming line temperature measuring element (150) and an incoming line temperature signal transmission port (160); a first heat conducting element is provided between the end of the incoming line temperature measuring element (150) and the stationary contact (10); and the incoming line temperature signal transmission port (160) is used for plugging with a connector of an incoming line temperature signal transmission line.

7. The circuit breaker power supply and temperature measurement module according to claim 6, characterized in that: A second creepage-increasing notch (170) is provided between the incoming line end temperature measuring component (150) and the second connecting hole (110).

8. The circuit breaker power supply and temperature measurement module according to claim 1, characterized in that: The circuit breaker power supply and temperature measurement module further comprises a second circuit board (300) arranged below the stationary contact (10); an incoming line temperature measuring element (150) and an incoming line temperature signal transmission port (160) are provided on the second circuit board (300); a first heat conducting element is provided between the end of the incoming line temperature measuring element (150) and the stationary contact (10); and the incoming line temperature signal transmission port (160) is used for plugging with a connector of an incoming line temperature signal transmission line.

9. The circuit breaker power supply and temperature measurement module according to any one of claims 6 to 8, characterized in that: The circuit breaker power supply and temperature measurement module further comprises a third circuit board (400) arranged at the outlet terminal of the circuit breaker, the third circuit board (400) being provided with an outlet terminal temperature measuring element (410) and an outlet terminal temperature signal transmission port (420), a second heat conducting element being provided between the end of the outlet terminal temperature measuring element (410) and the outlet terminal wiring board (20) of the circuit breaker, and the outlet terminal temperature signal transmission port (420) being used for plugging with a connector of an outlet terminal temperature signal transmission line.

10. The circuit breaker power supply and temperature measurement module according to claim 9, characterized in that: The third circuit board (400) is perpendicular to the outlet terminal wiring board (20), and the outlet terminal temperature measuring element (410) is arranged at an end of the third circuit board (400) close to the outlet terminal wiring board (20) and extends toward the outlet terminal wiring board (20).

11. A circuit breaker, characterized in that It comprises a base (30), a stationary contact (10) and a circuit breaker power supply and temperature measurement module according to any one of claims 1 to 10, wherein the stationary contact (10) and the circuit breaker power supply and temperature measurement module are both arranged on the base (30).

12. The circuit breaker according to claim 11, characterized in that The first circuit board (100) of the circuit breaker power supply and temperature measurement module is arranged on the outer bottom wall of the base (30), and the first circuit board (100) is provided with an incoming line temperature measuring component (150) and an incoming line temperature signal transmission port (160); the circuit breaker power supply and temperature measurement module also includes a third circuit board (400) arranged at the outgoing line of the circuit breaker, and the third circuit board (400) is penetrated through the base (30) and is perpendicular to the outgoing line terminal wiring board (20).

13. The circuit breaker according to claim 11, characterized in that The first circuit board (100) of the circuit breaker power supply and temperature measurement module is arranged on the outer bottom wall of the base (30); the circuit breaker power supply and temperature measurement module also includes a second circuit board (300) arranged below the static contact (10) and a third circuit board (400) arranged at the output end of the circuit breaker, and the second circuit board (300) and the third circuit board (400) are both arranged on the outer bottom wall of the base (30).

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