A circuit breaker plug-in base

Abstract

The present application relates to the technical field of circuit breaker bases, and in particular to a circuit breaker plug-in base, which includes a first base, a connecting stud and a first copper bar are provided on the first base, a first plug connector is provided on the first copper bar, the first copper bar is electrically connected to the incoming line of the circuit breaker through the connecting stud, and a second base is fixedly connected to the first base, a second copper bar and a connecting piece are provided on the second base, a second plug connector is provided on the second copper bar, and the second copper bar is electrically connected to the outgoing line of the circuit breaker through the connecting piece. Compared with the prior art, the present application simplifies the connection structure of the outgoing side of the circuit breaker by using the matching use of the connecting piece, the second copper bar and the second plug connector, and has the effect of simple and quick connection steps and more convenient use.

Description

Technical Field

[0001] The present application relates to the technical field of circuit breaker bases, and in particular to a circuit breaker plug-in base. Background Art

[0002] A circuit breaker is a switching device that can close, carry and interrupt current under normal circuit conditions and can close, carry and interrupt current under abnormal circuit conditions within a specified time.

[0003] like Figure 1 As shown, the structure of the existing circuit breaker plug-in base mainly includes a base body 20 made of insulating material, on which three spaced-apart power-in copper bars 30 and three conductive studs 40 are arranged, and the conductive studs 40 correspond to the power-in copper bars 30 one by one. The conductive studs 40 are used for the electrical connection between the incoming line end of the circuit breaker 60 and the power-in copper bars 30. A connecting clamp 50 is fixed on each power-in copper bar 30, and the connecting clamp 50 is used to be plugged in with the vertical busbar to achieve circuit connectivity on the power-in side of the circuit breaker 60.

[0004] At present, the connection of the power input side of the circuit breaker on the market is usually achieved by using the above-mentioned plug-in base, but for the connection of the power output side on the circuit breaker 60, the existing method is mainly achieved through an external cable, that is, one end of the cable is electrically connected to the output terminal on the circuit breaker 60, and the other end is connected to the power output copper bus in the distribution system by crimping or brazing, so as to achieve the connection of the circuit on the power output side of the circuit breaker 60.

[0005] However, in the actual connection process, the above-mentioned crimping or soldering connection methods require the use of special connection tools, and the overall connection is relatively cumbersome and inconvenient to use. Utility Model Content

[0006] In order to solve the problem that when the power output side of the existing circuit breaker is connected by cable, a special connection tool is needed for the connection, and the overall process is cumbersome and not convenient for use, the present application provides a circuit breaker plug-in base.

[0007] The present application provides a circuit breaker plug-in base, which adopts the following technical solution:

[0008] A circuit breaker plug-in base comprises a first base, a connecting stud and a first copper bar are provided on the first base, a first plug connector for externally connecting a vertical busbar is provided on the first copper bar, and the first copper bar is electrically connected to an incoming line terminal of the circuit breaker through the connecting stud, wherein a second base is fixedly connected to the first base, a second copper bar and a connecting piece are provided on the second base, a second plug connector for plugging into an outgoing copper bar in a circuit system is provided on the second copper bar, and the second copper bar is electrically connected to an outgoing line terminal of the circuit breaker through the connecting piece.

[0009] By adopting the above technical solution, when in use, the external vertical busbar is plugged into the first plug connector to achieve connectivity on the power inlet side of the circuit breaker, and then the second copper busbar is electrically connected to the output terminal of the circuit breaker through the connecting piece, and then the second plug connector is plugged into the output copper busbar to achieve connectivity on the output side of the circuit breaker. Compared with the cable connection method used in the prior art, the connection process does not require the use of special connection tools, and only requires the output copper busbar to be inserted into the second plug connector. The connection is simple and convenient, and easy to use.

[0010] Preferably, the connecting stud is slidably inserted on the first base, the first copper busbar is fixed on the first base, one end of the connecting stud is electrically connected to the first copper busbar, and the other end of the connecting stud is connected to the incoming terminal of the circuit breaker through a conductive bolt.

[0011] By adopting the above technical solution, when in use, the incoming line end of the circuit breaker is electrically connected to the connecting stud through a conductive bolt, and then electrically connected to the first copper bus through the connecting stud, so as to achieve circuit connectivity on the power inlet side of the circuit breaker, which is simple and convenient to use.

[0012] Preferably, the connecting member comprises a conductive copper sheet mounted on the second base, one end of the conductive copper sheet is fixedly connected to the second copper bar, and the other end of the conductive copper sheet is provided with a fastener for connecting to an outlet terminal of a circuit breaker.

[0013] By adopting the above technical solution, the conductive copper sheet is electrically connected to the output terminal of the circuit breaker through the fastener during use, so as to achieve the connection between the output terminal of the circuit breaker and the second copper busbar, and then the second plug connector can be used to achieve quick connection of the output side of the circuit breaker.

[0014] Preferably, the fastener comprises a connecting bolt and a locking nut, and the connecting bolt passes through the conductive copper sheet and the circuit breaker outlet terminal and is threadedly connected to the locking nut.

[0015] By adopting the above technical solution, the connection bolts and the locking nuts are used in combination to ensure the stability of the connection between the conductive copper sheet and the circuit breaker outlet terminal while achieving electrical connection between the conductive copper sheet and the circuit breaker outlet terminal.

[0016] Preferably, a protective shell is further provided on the second base, and the protective shell is buckled on the conductive copper sheet.

[0017] By adopting the above technical solution, the protective shell is made of insulating material during use, and when the conductive copper sheet is connected to the output terminal of the circuit breaker, the safety of the device is increased.

[0018] Preferably, the second base is detachably connected to the first base.

[0019] By adopting the above technical solution, when in use, through the detachable connection between the first base and the second base, the staff can replace or remove the second base as needed, which is more convenient to use.

[0020] Preferably, a plug-in block is fixed on the second base, a plug-in slot for embedding the plug-in block is provided on the first base, and a clamping structure for preventing the plug-in block from being separated from the plug-in slot is provided on the first base.

[0021] By adopting the above technical solution, when in use, the plug-in block is inserted into the plug-in slot, and then the plug-in block is clamped and positioned by the clamping structure, thereby realizing a detachable connection between the second base and the first base.

[0022] Preferably, the snap-on structure includes a pin slidably inserted on the first base, one end of the pin is located on the outside of the first base, and the other end is located in the plug-in slot after passing through the first base, the plug-in block is provided with a socket for embedding the pin, and the first base is provided with an elastic member for preventing the pin from being disengaged from the socket.

[0023] By adopting the above technical solution, the first base and the second base can be quickly disassembled or quickly connected by pulling the pin to disengage the pin from the socket during use, which is simple and convenient to use; the elastic member can prevent the pin from always being embedded in the socket without external force, thereby ensuring the plug-in stability of the pin and thus ensuring the connection stability of the second base and the first base.

[0024] Preferably, the elastic member includes a return spring sleeved on the latch and a limit block fixed on the latch, one end of the return spring abuts against the limit block, and the other end of the return spring is fixedly connected to the first base.

[0025] By adopting the above technical solution, the limit block is squeezed by the elastic force of the reset spring during use, so as to ensure that the pin is always inserted in the socket without external force; at the same time, when the staff pulls the pin to disengage the pin from the socket, the staff only needs to release the pin, and the pin can automatically slide into the socket under the elastic force of the reset spring, which is simple and convenient to use.

[0026] In summary, the present application includes at least one of the following beneficial technical effects:

[0027] 1. When in use, the second copper bar is electrically connected to the output terminal of the circuit breaker through the conductive copper sheet, and then the output copper bar is inserted into the second plug connector to realize the conduction of the output side of the circuit breaker. Compared with the existing technology, the overall connection method does not require the use of special connection tools, and the connection process is simpler and more convenient;

[0028] 2. When in use, a protective shell is provided on the outer cover of the conductive copper sheet to increase the safety of the electrical connection between the second copper bar and the circuit breaker;

[0029] 3. When in use, the second base and the first base are detachably connected by the combination of the latch and the return spring, and the disassembly method is simple and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is an exploded view of the circuit breaker base structure mainly embodied in the background technology of this application;

[0031] Figure 2 It is an axonometric diagram mainly showing the overall structure in the first embodiment of the present application;

[0032] Figure 3 It is an exploded view mainly showing the first base structure in the first embodiment of the present application;

[0033] Figure 4 It is an axonometric diagram mainly showing the second base structure in the first embodiment of the present application;

[0034] Figure 5 It is an axonometric diagram mainly showing the structure of the connecting piece in the first embodiment of the present application;

[0035] Figure 6 This is an axonometric diagram mainly showing the overall structure in the second embodiment of the present application;

[0036] Figure 7 It is an exploded diagram mainly showing the overall structure in the second embodiment of the present application;

[0037] Figure 8 It is a cross-sectional view mainly showing the clamping structure in the second embodiment of the present application;

[0038] Fig. 9 It is an axonometric diagram mainly showing the elastic member structure in the second embodiment of the present application.

[0039] Figure numerals: 1. first base; 11. plug-in slot; 12. snap-fit ​​structure; 121. latch; 13. elastic member; 131. reset spring; 132. limit block; 2. connecting stud; 3. first copper busbar; 31. conductive hole; 4. first plug connector; 5. second base; 51. plug-in block; 511. plug hole; 6. second copper busbar; 7. connecting member; 71. conductive copper sheet; 72. fastener; 721. connecting bolt; 722. locking nut; 8. second plug connector; 9. conductive bolt; 10. protective shell; 20. seat; 30. power-in copper busbar; 40. conductive stud; 50. connecting clamp; 60. circuit breaker. DETAILED DESCRIPTION

[0040] The following is combined with Figure 2 -Attached Figure 8 This application is described in further detail.

[0041] An embodiment of the present application discloses a circuit breaker plug-in base.

[0042] Embodiment 1:

[0043] Reference Figure 2 and Figure 3 A circuit breaker plug-in base comprises a first base 1 placed horizontally, a first copper bar 3 and a connecting stud 2 are arranged on the first base 1, wherein the first copper bar 3 is fixed to the bottom end of the first base 1 by bolts, a first plug connector 4 is fixed to the left end of the first copper bar 3 by bolts, a conductive hole 31 is opened at the right end of the first copper bar 3, and in this embodiment, three first copper bars 3 are arranged, and the three first copper bars 3 are evenly spaced along the width direction of the first base 1, and the lengths of the three first copper bars 3 are successively reduced, so as to facilitate the insertion of the vertical busbar.

[0044] Reference Figure 2 and Figure 3 The connecting stud 2 is inserted through the upper end of the first base 1. The connecting stud 2 is composed of a conductive part and an insulating part. The conductive part includes a connecting rod made of conductive metal. A threaded groove is provided at the upper end of the connecting rod. The insulating part includes an insulating sleeve made of insulating material. The insulating sleeve is provided on the outer side of the connecting rod. Both upper and lower ends of the connecting rod are exposed outside the insulating sleeve. When in use, move the end of the connecting stud 2 away from the threaded groove toward the first base 1 until one end of the connecting stud 2 is inserted into the conductive hole 31, so that the circuit between the connecting stud 2 and the first copper busbar 3 can be connected.

[0045] Reference Figure 2 and Figure 3 A conductive bolt 9 is provided at one end of the connecting stud 2 having a thread groove. When in use, the thread groove is aligned with the incoming line end of the circuit breaker 60, and then one end of the conductive bolt 9 is passed through the incoming line end of the circuit breaker 60 and threadedly connected in the thread groove. In this way, the incoming line end of the circuit breaker 60 and the connecting stud 2 can be electrically connected, thereby realizing the electrical connection between the incoming line end of the circuit breaker 60 and the first copper busbar 3 through the connecting stud 2.

[0046] Reference Figure 3 and Figure 4 A second base 5 is integrally formed at the left end of the first base 1. Both the first base 1 and the second base 5 are made of insulating materials. In this embodiment, the first base 1 and the second base 5 are preferably made of insulating plastic. A connector 7 for electrically connecting to the outlet terminal of the circuit breaker 60 and a second copper bar 6 are installed on the second base 5. The second copper bar 6 is fixed to the bottom of the second base 5 by bolts. A second plug connector 8 is fixed to the left end of the second copper bar 6 by bolts. The right end of the second copper bar 6 is abutted against the connector 7 and then fixedly connected by bolts.

[0047] Reference Figure 2 and Figure 5 The connecting member 7 includes a conductive copper sheet 71, which is placed on the upper end of the second base 5. The left end of the conductive copper sheet 71 is in contact with the right end of the second copper bar 6, and the left end of the conductive copper sheet 71 is fixed to the right end of the second copper bar 6 by bolts. A fastener 72 is provided at the right end of the conductive copper sheet 71, and the fastener 72 is used to connect the conductive copper sheet 71 and the outlet terminal of the circuit breaker 60 together; when in use, the fastener 72 and the conductive copper sheet 71 are used in combination to realize the electrical connection between the second copper bar 6 and the outlet terminal of the circuit breaker 60, and then the power-out copper bar in the circuit system is plugged into the second plug connector 8 to realize the conduction of the circuit on the power-out side of the circuit breaker 60.

[0048] Reference Figure 2 and Figure 5 The fastener 72 includes a connecting bolt 721 and a locking nut 722. When in use, the right end of the conductive copper sheet 71 is fitted with the outlet terminal of the circuit breaker 60, and then the connecting bolt 721 is passed through the outlet terminal of the circuit breaker 60 and the conductive copper sheet 71 in sequence. After that, the locking nut 722 is threadedly connected to the connecting bolt 721, so that the conductive copper sheet 71 and the outlet terminal of the circuit breaker 60 can be electrically connected.

[0049] Reference Figure 2 and Figure 5 In order to ensure the connectivity of the circuits on the power input side and the power output side of the circuit breaker 60, in this embodiment, the first copper bar 3, the second copper bar 6 and the conductive copper sheet 71 are all made of copper material with good conductivity. At the same time, in order to ensure the safety of the connection of the conductive copper sheet 71, a protective shell 10 is bolted and fixedly connected to the second base 5. In this embodiment, the protective shell 10 is preferably an insulating plastic shell. The protective shell 10 is buckled on the outside of the conductive copper sheet 71, and an avoidance groove is opened at the right end of the protective shell 10 for the right end of the conductive copper sheet 71 to extend out.

[0050] The implementation principle of the embodiment of the present application is as follows: when in use, the circuit breaker 60 is placed on the first seat body 20, the connecting stud 2 is electrically connected to the incoming line end of the circuit breaker 60 through the conductive bolt 9, and then the connecting stud 2 is inserted into the first seat body 20 until it is electrically connected to the conductive hole 31 on the first copper busbar 3, and then the external vertical busbar is inserted into the first plug connector 4, so that the circuit on the incoming side of the circuit breaker 60 can be turned on; at the same time, the conductive copper sheet 71 is electrically connected to the outgoing line end of the circuit breaker 60 through the fastener 72, and then the conductive copper sheet 71 is electrically connected to the second copper busbar 6, so that the electrical connection between the second copper busbar 6 and the outgoing line end of the circuit breaker 60 can be realized, and then the outgoing copper busbar in the circuit system is inserted into the second plug connector 8, so that the circuit on the outgoing side of the circuit breaker 60 can be turned on. Compared with the prior art, the overall connection method does not require the use of special installation tools, the installation steps are faster, and the connection method is simpler and more convenient. At the same time, compared with the cable power out method, it is less likely to have safety hazards caused by aging and the like.

[0051] The difference between the second embodiment and the first embodiment is that:

[0052] Reference Figure 6 and Figure 7 The second base 5 is detachably connected to the first base 1 shell, and its specific structure includes: a plug-in block 51 is integrally formed at the right end of the second base 5, and a plug-in slot 11 is opened at the left end of the first base 1, and the plug-in slot 11 is used to embed the plug-in block 51. A clamping structure 12 is also provided on the first base 1, and the clamping structure 12 is used to prevent the plug-in block 51 from being separated from the plug-in slot 11 without external force. When in use, the clamping structure 12 can be used to realize the detachable connection between the first base 1 and the second base 5, so that it is convenient for the staff to disassemble, maintain or replace the first base 1 and the second base 5.

[0053] Reference Figure 6 and Figure 8 The clamping structure 12 includes a latch 121, which is slidably inserted into the first base 1 as a whole. One end of the latch 121 is located outside the first base 1, and the other end of the latch 121 passes through the first base 1 and is located in the plug-in slot 11. At the same time, in order to facilitate the staff to pull the latch 121, a pull ring is welded on the end of the latch 121 located outside the first base 1, and a socket 511 is opened on the plug-in block 51, and the socket 511 is used to embed the end of the latch 121.

[0054] Reference Figure 8 and Fig. 9An elastic member 13 is provided on the first base 1, and the elastic member 13 is used to prevent the latch 121 from being separated from the socket 511 without being affected by external force. The elastic member 13 includes a return spring 131 and a limit block 132. The limit block 132 is integrally formed on the latch 121, and the return spring 131 is located between the limit block 132 and the first base 1, and the return spring 131 is sleeved on the latch 121, one end of the return spring 131 abuts against the limit block 132, and the other end abuts against the first base 1.

[0055] Reference Figure 8 and Fig. 9 When in use, the staff pulls the pull ring to make the pin 121 move away from one end of the pull ring and disengage from the plug-in slot 11. At this time, the reset spring 131 is compressed, and then the plug-in block 51 on the second base 5 can be inserted into the plug-in slot 11. After that, the staff releases the pull ring, and the reset spring 131 causes the pin 121 to slide and reset, so that it is inserted into the socket 511, thereby realizing the detachable connection between the second base 5 and the first base 1.

[0056] The implementation principle of the embodiment of the present application is: when in use, the first copper busbar 3, the connecting stud 2 and the first plug connector 4 on the first base 1 can be used together to achieve circuit conduction on the power input side of the circuit breaker 60, and the conductive copper sheet 71, the second copper busbar 6 and the second plug connector 8 on the second base 5 can be used together to achieve circuit conduction on the power output side of the circuit breaker 60. The overall use method is simple and convenient. At the same time, the staff can disassemble and separate the second base 5 and the first base 1 by pulling the latch 121 as needed, so as to facilitate the maintenance and replacement of the second base 5 or the first base 1, thereby achieving the maintenance of the circuit connection without affecting the circuit connectivity between the power input side and the power output side of the circuit breaker 60, which is more conducive to use.

[0057] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A circuit breaker plug-in base, comprising a first base (1), wherein the first base (1) is provided with a connecting stud (2) and a first copper bar (3), wherein the first copper bar (3) is provided with a first plug connector (4) for externally connecting a vertical busbar, and the first copper bar (3) is electrically connected to an incoming line terminal of a circuit breaker (60) through the connecting stud (2), characterized in that: The first base (1) is fixedly connected to a second base (5), the second base (5) is provided with a second copper bar (6) and a connecting piece (7), the second copper bar (6) is provided with a second plug connector (8) for plugging into an output copper bar in a circuit system, and the second copper bar (6) is electrically connected to an output terminal of a circuit breaker (60) via the connecting piece (7).

2. A circuit breaker plug-in base according to claim 1, characterized in that: The connecting stud (2) is slidably inserted on the first base (1), the first copper bar (3) is fixed on the first base (1), one end of the connecting stud (2) is electrically connected to the first copper bar (3), and the other end of the connecting stud (2) is connected to the incoming line terminal of the circuit breaker (60) via a conductive bolt (9).

3. The circuit breaker plug-in base according to claim 1, characterized in that: The connecting piece (7) comprises a conductive copper sheet (71) mounted on the second base (5), one end of the conductive copper sheet (71) being fixedly connected to the second copper bar (6), and the other end of the conductive copper sheet (71) being provided with a fastener (72) for connecting to an outlet terminal of a circuit breaker (60).

4. A circuit breaker plug-in base according to claim 3, characterized in that: The fastener (72) comprises a connecting bolt (721) and a locking nut (722); the connecting bolt (721) passes through the conductive copper sheet (71) and the outlet terminal of the circuit breaker (60) and is threadedly connected to the locking nut (722).

5. A circuit breaker plug-in base according to claim 4, characterized in that: A protective shell (10) is also provided on the second base (5), and the protective shell (10) is buckled on the conductive copper sheet (71).

6. The circuit breaker plug-in base according to claim 1, characterized in that: The second base (5) is detachably connected to the first base (1).

7. A circuit breaker plug-in base according to claim 6, characterized in that: A plug-in block (51) is fixed on the second base (5), a plug-in slot (11) for embedding the plug-in block (51) is provided on the first base (1), and a clamping structure (12) for preventing the plug-in block (51) from being separated from the plug-in slot (11) is provided on the first base (1).

8. The circuit breaker plug-in base according to claim 7, characterized in that: The clamping structure (12) comprises a latch (121) which is slidably inserted on the first base (1); one end of the latch (121) is located outside the first base (1), and the other end passes through the first base (1) and is located in the plug slot (11); the plug block (51) is provided with a plug hole (511) for embedding the latch (121); and the first base (1) is provided with an elastic member (13) for preventing the latch (121) from being separated from the plug hole (511).

9. The circuit breaker plug-in base according to claim 8, characterized in that: The elastic member (13) comprises a return spring (131) sleeved on the latch (121) and a limit block (132) fixed on the latch (121); one end of the return spring (131) abuts against the limit block (132), and the other end of the return spring (131) is fixedly connected to the first base (1).

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