Power taking device for circuit breaker and circuit breaker

Abstract

The embodiment of the utility model provides a power taking device for a circuit breaker and the circuit breaker. The power taking device comprises: a housing, the top of which is provided with a fixing groove and at least one mounting groove; at least one conductive member, each of the at least one conductive member is coupled to a corresponding one of the at least one mounting groove, and when the housing is coupled to the circuit breaker, each conductive member can abut against a corresponding wiring terminal of the circuit breaker; the fastening nut is arranged in the fixing groove and comprises a screw hole; the fastening piece can be screwed into the screw hole and press an external circuit towards the wiring terminal under the condition that the shell is coupled to the circuit breaker, so that the external circuit abuts against the wiring terminal and transmits current to the wiring terminal; and the connecting piece is connected to each conductive piece so as to convey the current received by each conductive piece from the wiring terminal.

Description

Technical Field

[0001] Embodiments of the present disclosure relate to the field of electrical equipment, and more specifically to a power supply device for a circuit breaker and a circuit breaker. Background Art

[0002] With the advent of the new era of electrification and intelligence, more and more products and traditional industries are beginning to apply more and more electronic power technologies to their products. In conventional power distribution products, the current generated by the current transformer (CT) is often not enough to meet the power consumption of the printed circuit board or accessories. Especially for products with remote monitoring functions, after the product is disconnected, the communication circuit still needs to work with power. Therefore, an external power supply is required or power is taken from the input and output terminals of the product to supply power to the printed circuit board or accessories.

[0003] At present, the common ways of drawing power on the market are as follows: installing a metal sheet with wires welded on the wiring terminal of the circuit breaker to draw power, pasting pogo pins on the printed circuit board and crimping the live parts with the pogo pins to draw power, and using a separate external power-drawing module to draw power. The above methods all have obvious defects. The first method is not easy to install, the second method has more restrictions on wiring and is not flexible enough to use, and the third method will increase the size of the circuit breaker and have a large number of parts. Therefore, the design needs to be optimized. Utility Model Content

[0004] The purpose of the present disclosure is to provide a power extraction device for a circuit breaker and a circuit breaker, so as to at least partially solve the above problems.

[0005] In a first aspect of the present disclosure, there is provided a power extraction device for a circuit breaker, comprising: a housing, a top of which is provided with a fixing groove and at least one mounting groove; at least one conductive member, each of the at least one conductive member is coupled to a corresponding one of the at least one mounting groove, wherein when the housing is coupled to the circuit breaker, each conductive member can abut against a corresponding terminal of the circuit breaker; a fastening nut, which is provided in the fixing groove and includes a screw hole; a fastener, which, when the housing is coupled to the circuit breaker, can be screwed into the screw hole and press an external circuit toward the terminal so that the external circuit abuts against the terminal and transmits current to the terminal; and a connector, which is connected to each conductive member to transmit the current received by each conductive member from the terminal.

[0006] According to the power-drawing device of the embodiment of the present disclosure, current can be reliably transmitted by setting at least one conductive member coupled to the corresponding installation groove, the wiring terminals of the circuit breaker can be reliably fixed to the external circuit by tightening the nut and the fastener, and the current received from the wiring terminals can be reliably transmitted by setting the connecting member. It has a simple structure and is easy to install, and can both carry out wiring and reliably realize the power-drawing function.

[0007] In some embodiments, the housing includes an internal space for accommodating a portion of the connector, and a connection point between the connector and each conductive member is located in the internal space. In such an embodiment, by providing the internal space, a portion of the connector can be accommodated therein to protect the connection point between the connector and each conductive member, and the device can be made more beautiful.

[0008] In some embodiments, the housing further comprises at least one through hole, the at least one through hole being in communication with the internal space, and the at least one through hole being provided for the connector to pass therethrough. In such an embodiment, the at least one through hole is provided so that the connector can pass therethrough, thereby facilitating the installation of the connector.

[0009] In some embodiments, a protrusion is formed at the end of the at least one conductive member, wherein when the housing is coupled to the circuit breaker, the protrusion abuts against the top of the housing. In such an embodiment, by providing a protrusion at the end of the conductive member, the conductive member can be more reliably fixed in a predetermined position.

[0010] In some embodiments, a positioning groove is formed at a position of the housing corresponding to the at least one conductive member, wherein when each conductive member abuts against the wiring terminal, the protrusion can be snapped into the corresponding positioning groove. In such an embodiment, by snapping the protrusion into the corresponding positioning groove, the conductive member can be in more complete contact with the wiring terminal.

[0011] In some embodiments, the at least one conductive member is a spring pin. In such an embodiment, using the spring pin as the conductive member can more reliably transmit current.

[0012] In some embodiments, one end of the connector facing away from each conductive member is connected to a printed circuit board to deliver the current to the printed circuit board. In such an embodiment, by connecting the connector to the printed circuit board, power can be reliably supplied to the printed circuit board.

[0013] In some embodiments, the fastener is a bolt. In such an embodiment, the bolt is used as the fastener, and the external circuit can be reliably pressed toward the wiring terminal to achieve the wiring function.

[0014] In a second aspect of the present disclosure, a circuit breaker is provided, comprising the power extraction device of the first aspect of the present disclosure.

[0015] It should be understood that the content described in this content section is not intended to limit the key features or important features of the embodiments of the present disclosure, nor is it intended to limit the scope of the present disclosure. Other features of the present disclosure will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and other features, advantages and aspects of the embodiments of the present disclosure will become more apparent with reference to the following detailed description in conjunction with the accompanying drawings. In the accompanying drawings, the same or similar reference numerals represent the same or similar elements, wherein:

[0017] Figure 1 A schematic structural diagram of a power extraction device according to an embodiment of the present disclosure is shown;

[0018] Figure 2 A cross-sectional view of a power extraction device according to an embodiment of the present disclosure is shown;

[0019] Figure 3 A cross-sectional view showing a power extraction device according to an embodiment of the present disclosure when connected to a circuit breaker and an external line;

[0020] Figure 4 A schematic diagram showing the structure of a power extraction device according to another embodiment of the present disclosure is shown; and

[0021] Figure 5 A schematic structural diagram of a power extraction device according to an embodiment of the present disclosure is shown.

[0022] Description of reference numerals:

[0023] 100 Power supply device 200 Circuit breaker

[0024] 300 external line 201 terminal block

[0025] 1 Shell 2 Conductive parts

[0026] 3 Fastening nut 4 Fastener

[0027] 5 connector 11 mounting slot

[0028] 12Fixed slot 13Internal space

[0029] 14 through hole 15 positioning groove

[0030] 20 protrusions 30 screw holes DETAILED DESCRIPTION

[0031] The preferred embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the preferred embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to make the present disclosure more thorough and complete, and to fully convey the scope of the present disclosure to those skilled in the art.

[0032] As used herein, the term "including" and its variations mean open inclusion, i.e., "including but not limited to". Unless otherwise stated, the term "or" means "and / or". The term "based on" means "based at least in part on". The terms "an example embodiment" and "an embodiment" mean "at least one example embodiment". The term "another embodiment" means "at least one additional embodiment". The terms "first", "second", etc. may refer to different or the same objects.

[0033] As described above, the existing power supply method is not flexible enough, and the structure of the power supply module is complex and difficult to install. The embodiment of the present disclosure provides a power supply device, in which the current can be reliably transmitted by setting at least one conductive member coupled to the corresponding installation slot, the wiring terminal of the circuit breaker can be reliably fixed to the external line by tightening the nut and the fastener, and the current received from the wiring terminal can be reliably transmitted by setting the connecting member. The structure is simple and easy to install, and it can both perform wiring and reliably realize the power supply function. In the following, it will be combined with Figures 1 to 5 The principles of the present disclosure are described.

[0034] Figure 1 A schematic structural diagram of a power extraction device 100 according to an embodiment of the present disclosure is shown. Figure 2 A cross-sectional view of a power extraction device 100 according to an embodiment of the present disclosure is shown. Figure 3 FIG. 2 shows a cross-sectional view of a power extraction device 100 according to an embodiment of the present disclosure when it is connected to a circuit breaker 200 and an external line 300. Figures 1 to 3As shown, the power extraction device described herein generally includes a housing 1, at least one conductive member 2, a fastening nut 3, a fastener 4 and a connector 5. The top of the housing 1 is provided with a fixing groove 12 and at least one mounting groove 11. Each conductive member 2 of the at least one conductive member 2 is coupled to a corresponding mounting groove 11 of the at least one mounting groove 11. The fastening nut 3 is disposed in the fixing groove 12. The fastening nut 3 includes a screw hole 30. When the housing 1 is coupled to the circuit breaker 200, each conductive member 2 can be abutted against the corresponding terminal 201 of the circuit breaker, and the fastener 4 can be screwed into the screw hole 30 and press the external line 300 toward the terminal 201, so that the external line 300 abuts against the terminal 201 and transmits current to the terminal 201. The connector 5 is connected to each conductive member 2 to transmit the current received by each conductive member 2 from the terminal 201.

[0035] In one embodiment, Figures 1 to 3 As shown, the outer shape of the housing 1 can be set to a shape that can cooperate with the internal structure of the circuit breaker 200. The entire power extraction device 100 can be directly inserted into the interior of the circuit breaker 200 to be electrically connected to the single-pole terminal 201 of the circuit breaker 200. In the case where a multi-pole terminal 201 is required, multiple power extraction devices 100 can be inserted to achieve multi-pole wiring and power extraction. In this way, not only the difficulty of installing the device is greatly reduced, but also the installation space is saved. In addition, it can also meet the needs of different usage scenarios. The following will be described in detail with the scenario of single-pole use, and the scenario of multi-pole use is similar, so it will not be described in detail.

[0036] Continue to refer Figures 1 to 3 In one embodiment, the housing 1 may include an internal space 13 for accommodating a portion of the connector 5. The connection point between the connector 5 and each conductive member 2 is located in the internal space 13. By providing the internal space 13, a portion of the connector can be accommodated therein, so that the power extraction device 100 will not expose the connection portion outside the housing 1 during the power extraction process, thereby improving the stability of the device in power extraction.

[0037] In one embodiment, Figure 2 and Figure 3 As shown, the connection member 5 and each conductive member 2 can be connected by welding, so that the connection member can reliably transmit the current received from the terminal. It should be understood that based on the teachings given in this disclosure, ordinary technicians in this field can think of other wiring methods to achieve the above functions, and these implementations all fall within the scope of this disclosure.

[0038] In one embodiment, Figure 1As shown, the housing 1 may further include at least one through hole 14. The at least one through hole 14 is in communication with the internal space 13, and the at least one through hole 14 allows the connector 5 to pass therethrough. By providing at least one through hole 14, the connector 5 can be extended out of the housing 1 from the internal space 13, and the connector 5 can be restricted to a fixed position. The number and size of the through holes 14 can be determined according to actual application scenarios, and the present disclosure does not limit this.

[0039] Continue to refer Figures 1 to 3 In one embodiment, a protrusion 20 is formed at the end of at least one conductive member 2. When the housing 1 is coupled to the circuit breaker, the protrusion 20 abuts against the top of the housing 1. A positioning groove 15 is formed at a position of the housing 1 corresponding to at least one conductive member 2, and when each conductive member 2 abuts against the terminal 201, the protrusion 20 can be snapped into the corresponding positioning groove 15. In one embodiment, the protrusion 20 is configured to be annular, and correspondingly, the positioning groove 15 is configured to be a circular groove. By matching the protrusion 20 with the corresponding positioning groove 15, the conductive member 2 can be more reliably fixed in a predetermined position, so that the conductive member 2 is more fully in contact with the terminal 201. It should be understood that based on the teachings given in the present disclosure, other types of protrusions and positioning grooves that can be thought of by ordinary technicians in this field to achieve the above functions, and these implementations all fall within the scope of the present disclosure.

[0040] In some embodiments, at least one of the conductive members 2 is a pogo pin. The alloy shell of the pogo pin has good electrical conductivity, and its built-in spring can apply elastic force to the alloy shell, so that the alloy shell and the terminal 201 are in more complete contact, greatly improving the quality of power extraction. It should be understood that based on the teachings given in this disclosure, other types of conductive members that ordinary technicians in this field can think of to achieve the above functions, and these implementations all fall within the scope of this disclosure.

[0041] In some embodiments, one end of the connector 5 facing away from each conductive member 2 is connected to a printed circuit board to deliver current to the printed circuit board. In some embodiments, the connector 5 is a wire wrapped with an insulating sheath. The connector 5 can be directly soldered to the printed circuit board, or can be electrically connected to the printed circuit board through a connecting plug to reliably deliver current from the external line 300 to the printed circuit board.

[0042] In some embodiments, Figure 3As shown, the fastener 4 may be a bolt. When the housing 1 is coupled to the circuit breaker, the external line 300 can be reliably pressed toward the terminal 201 by rotating the bolt to achieve electrical connection between the external line 300 and the circuit breaker 200, so that the current of the external line 300 can be transmitted to at least one conductive member 2 via the terminal 201. It should be understood that based on the teachings given in the present disclosure, other types of fasteners that can be thought of by ordinary technicians in this field to achieve the above functions, and these implementations all fall within the scope of the present disclosure.

[0043] Figure 4 A schematic structural diagram of a power extraction device 100 according to another embodiment of the present disclosure is shown. Figure 5 FIG. 1 is a schematic diagram showing a structure of a power extraction device 100 according to an embodiment of the present disclosure. Figure 4 The power extraction device 100 shown is provided with two conductive members 2. Correspondingly, the top of the housing 1 is provided with two mounting grooves 11 for mounting the two conductive members 2, and each conductive member 2 can be connected to a corresponding connecting member 5. Figure 5 The power extraction device 100 shown is provided with three conductive members, and the top of the housing 1 is provided with three mounting slots 11 for mounting the three conductive members 2. In addition, the other structures and working principles are the same as those described above. Figure 1 The power extraction device 100 is the same, so no further details are given here. The more the number of the conductive members 2 is, the greater the current delivered is. Therefore, the number of the conductive members 2 can be selected according to the actual working conditions.

[0044] The power taking device 100 according to the embodiment of the present disclosure has a simple structure and a small number of parts, which is conducive to industrial mass production. In addition, the power taking device 100 according to the embodiment of the present disclosure does not change the installation size of the circuit breaker, has a stable wiring function, and has a reliable power taking function, and is very flexible in application.

[0045] The embodiments of the present disclosure have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or technical improvements in the market, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. A power extraction device (100) for a circuit breaker, characterized in that: include: A housing (1) having a fixing groove (12) and at least one mounting groove (11) disposed on the top thereof; at least one conductive member (2), each conductive member (2) of the at least one conductive member (2) being coupled to a corresponding one of the at least one mounting slots (11), wherein when the housing (1) is coupled to the circuit breaker, each conductive member (2) is capable of abutting against a corresponding terminal (201) of the circuit breaker; A fastening nut (3), which is arranged in the fixing groove (12) and comprises a screw hole (30); a fastener (4), which, when the housing (1) is coupled to the circuit breaker, can be screwed into the screw hole (30) and press the external circuit (300) toward the wiring terminal (201), so that the external circuit (300) abuts against the wiring terminal (201) and transmits current to the wiring terminal (201); as well as A connecting member (5) is connected to each conductive member (2) to transmit the current received by each conductive member (2) from the connection terminal (201).

2. The power extraction device (100) according to claim 1, characterized in that: The housing (1) comprises an internal space (13) for accommodating a portion of the connecting member (5), and a connection point between the connecting member (5) and each conductive member (2) is located in the internal space (13).

3. The power extraction device (100) according to claim 2, characterized in that: The housing (1) further comprises at least one through hole (14), the at least one through hole (14) being in communication with the internal space (13), and the at least one through hole (14) being capable of allowing the connecting member (5) to pass therethrough.

4. The power extraction device (100) according to claim 1, characterized in that: A protrusion (20) is formed at the end of the at least one conductive member (2), wherein when the housing (1) is coupled to the circuit breaker, the protrusion (20) abuts against the top of the housing (1).

5. The power extraction device (100) according to claim 4, characterized in that: A positioning groove (15) is formed at a position of the housing (1) corresponding to the at least one conductive member (2), wherein when each conductive member (2) abuts against the connecting terminal (201), the protrusion (20) can be snap-fitted into the corresponding positioning groove (15).

6. The power extraction device (100) according to claim 1, characterized in that: The at least one conductive member (2) is a spring pin.

7. The power extraction device (100) according to claim 1, characterized in that: One end of the connecting member (5) facing away from each conductive member (2) is connected to a printed circuit board to transmit the current to the printed circuit board.

8. The power extraction device (100) according to claim 1, characterized in that: The fastener (4) is a bolt.

9. A circuit breaker (200), characterized in that: It comprises a power extraction device (100) according to any one of claims 1 to 8.

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