Wiring board of molded case circuit breaker

Abstract

The utility model discloses a wiring board of a molded case circuit breaker, and relates to the technical field of circuit breakers, the wiring board comprises a housing of the circuit breaker and three equidistantly distributed wiring mechanisms mounted on the housing, the outer wall of the top of the housing is provided with three equidistantly distributed mounting grooves, and the wiring mechanisms are mounted on the inner walls of the mounting grooves. According to the circuit breaker, the rectangular groove is formed in the shell, the wiring mechanism is convenient to install, the wiring board is rapidly fixed to the shell of the circuit breaker through the wiring mechanism, a connecting plate and a threaded sleeve in the wiring mechanism are matched, auxiliary locking bolts are convenient to install, and two installation assemblies are arranged on the connecting plate, so that the wiring board is convenient to install. The arrangement of the installation assembly facilitates the rapid installation of the auxiliary wiring board.

Description

Technical Field

[0001] The present application relates to the technical field of circuit breakers, and in particular to a terminal block for a molded case circuit breaker. Background Art

[0002] A circuit breaker is a switching device capable of closing, carrying, and interrupting current under normal circuit conditions, and closing, carrying, and interrupting current under abnormal circuit conditions within a specified timeframe. Circuit breakers are categorized as high-voltage and low-voltage based on their scope of use. The distinction between high and low voltage is often ambiguous, with those above 3kV generally being considered high-voltage.

[0003] As an important component in the low-voltage power distribution system, the design of the terminal block of the molded case circuit breaker directly affects the performance and installation convenience of the circuit breaker. When connecting the external wires to the terminal block of the traditional molded case circuit breaker, it is necessary to pre-form a hexagonal groove on the circuit breaker housing and place a nut in the hexagonal groove, while the terminal block only has through holes for the bolts to pass through; when connecting the wires, the bolts pass through the terminal block and are threadedly connected to the nuts to press the wires onto the terminal block, thereby achieving electrical connection between the two. This installation method is relatively complicated in actual operation, thus affecting the installation efficiency of the terminal block. Utility Model Content

[0004] In order to improve the problem that the existing circuit breaker terminal block is inconvenient to install, the present application provides a terminal block for a molded case circuit breaker.

[0005] The present application provides a terminal block for a molded case circuit breaker, comprising a housing of the circuit breaker and three equally spaced terminal mechanisms mounted on the housing. The outer wall at the top of the housing is provided with three equally spaced mounting grooves, and the terminal mechanisms are mounted on the inner walls of the mounting grooves.

[0006] By adopting the above structure, the installation of the wiring mechanism is facilitated by the installation slot on the circuit breaker housing, and the arrangement of the wiring mechanism facilitates the installation of the copper plate on the circuit breaker.

[0007] A circular groove is provided on the inner wall of the bottom of the installation groove, and two symmetrically arranged rib grooves are provided on the inner wall of the bottom of the installation groove, and limiting grooves are provided on the inner walls on both sides of the two rib grooves.

[0008] By adopting the above structure, the circular groove and the two rib grooves in the installation groove are provided, which facilitates quick installation in conjunction with the wiring mechanism.

[0009] The wiring mechanism includes a connecting plate, and a circular opening is opened on the outer wall of the top of the connecting plate, and a threaded sleeve is fixedly connected to the inner wall of the circular opening.

[0010] By adopting the above structure, the threaded sleeve can be conveniently installed through the circular opening on the connecting plate, and the provision of the threaded sleeve facilitates the installation of the auxiliary connecting wire.

[0011] An inclined welding plate is fixedly connected to one side outer wall of the connecting plate, a plurality of equally spaced anti-slip grooves are provided on the top outer wall of the connecting plate, and two symmetrically arranged mounting components are installed on the bottom outer wall of the connecting plate.

[0012] By adopting the above structure, the setting of the connecting plate facilitates the connection of the wires connected to the circuit breaker, the setting of the welding plate facilitates the electrical connection of the connecting plate to the conductive element in the circuit breaker housing, the setting of the anti-slip groove facilitates the prevention of the connecting wires on the circuit breaker from slipping, and the setting of the two mounting components facilitates the fixing of the connecting plate to the circuit breaker housing.

[0013] The top outer wall of the connecting plate is provided with two symmetrically arranged grooves, and the bottom inner walls of the two grooves are rotatably connected to the rotating part of the drive installation assembly, and the inner wall of the threaded sleeve is screwed with a locking bolt.

[0014] By adopting the above structure, the two grooves on the connecting plate are arranged to facilitate the hidden installation of the rotating part, thereby preventing the protrusion of the rotating part from affecting the normal installation of the connecting wire. The arrangement of the rotating part facilitates the adjustment of the installation component, and the arrangement of the threaded sleeve facilitates the installation of the locking bolt.

[0015] The mounting assembly includes a mounting column fixedly connected to the outer wall of the bottom of the connecting plate, and a mounting cavity is opened inside the mounting column, the outer walls on both sides of the mounting cavity are opened, and the inner walls of the two openings are slidably connected to the limit seat, the specifications of the limit seat match the specifications of the limit groove, and the mounting column is inserted into the inner wall of the rib groove.

[0016] By adopting the above structure and opening the installation cavity in the installation column, it is convenient to slide the two limit seats, and the limit seats are inserted into the limit grooves, thereby facilitating the fixing of the installation column in the rib groove.

[0017] The inner wall of the installation cavity is slidably connected to two symmetrically arranged sliding seats, and the two sliding seats are respectively fixedly connected to two limit seats, and the outer walls of the two sliding seats on opposite sides are rotatably connected to two driving plates.

[0018] By adopting the above structure, the two sliding seats in the installation cavity can conveniently drive the two limiting seats to move, and the arrangement of the four driving plates can conveniently drive the two sliding seats to move toward or away from each other.

[0019] The inner walls on both sides of the mounting cavity are rotatably connected to the same bidirectional screw, and the outer wall of the bidirectional screw is screwed to two symmetrically arranged threaded sleeves, the four driving plates are rotatably connected to the outer walls of the two threaded sleeves respectively, one end of the transmission shaft of the rotating part is fixedly connected to the bidirectional screw, and the outer wall of the bottom of the mounting column is fixedly connected to a rubber pad.

[0020] By adopting the above structure, the bidirectional screw is installed by rotating through the mounting cavity. When the bidirectional screw rotates, it is convenient to directly drive the two threaded sleeves to move toward or away from each other. When the two threaded sleeves move, they cooperate with the driving plate to drive the two sliding seats to move. When the sliding seat moves, it is convenient to drive the limit seat to move. The setting of the rubber pad can effectively reduce the wear between the mounting column and the rib groove.

[0021] In summary, the beneficial effects of this application are as follows:

[0022] 1. This application provides a rectangular groove on the housing to facilitate the installation of the wiring mechanism. The wiring mechanism quickly fixes the terminal block to the circuit breaker housing. The cooperation between the connecting plate and the threaded sleeve in the wiring mechanism facilitates the installation of the auxiliary locking bolt. Two mounting components are provided on the connecting plate. The provision of the mounting components facilitates the rapid installation of the auxiliary terminal block.

[0023] 2. This application arranges two adjustable limit seats in the mounting column on the mounting assembly, and arranges a bidirectional screw, a threaded sleeve and a drive plate in the mounting cavity, thereby facilitating the adjustment of the positions of the two limit seats and fixing and facilitating the disassembly and assembly of the auxiliary connecting plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is the overall schematic diagram of Benshen;

[0025] Figure 2 It is a schematic diagram of the housing of this application;

[0026] Figure 3 It is a schematic diagram of the wiring mechanism of this application;

[0027] Figure 4 It is a schematic diagram of the wiring board of this application;

[0028] Figure 5 This is a cross-sectional diagram of the installation components of this application.

[0029] Explanation of the accompanying drawings: 1. Housing; 2. Rectangular groove; 3. Wiring mechanism; 4. Circular groove; 5. Ridge groove; 6. Limiting groove; 7. Connecting plate; 8. Anti-slip groove; 9. Welding plate; 10. Threaded sleeve; 11. Locking bolt; 12. Groove; 13. Rotating part; 14. Mounting assembly; 15. Mounting column; 16. Mounting cavity; 17. Sliding seat; 18. Limiting seat; 19. Bidirectional screw; 20. Threaded sleeve; 21. Drive plate; 22. Rubber pad. DETAILED DESCRIPTION

[0030] The following is combined with Figure 1-5 This application is described in further detail.

[0031] See also Figure 1-3 , a terminal block for a molded case circuit breaker, a circuit breaker refers to a switching device that can close, carry and disconnect current under normal circuit conditions and can close, carry and disconnect current under abnormal circuit conditions within a specified time, the terminal block on the circuit breaker is convenient for transmitting electrical energy, the terminal block needs to be fixed and installed when the circuit breaker is assembled, the existing terminal block is inconvenient to operate during installation, and the terminal block and the connecting nut are split and inconvenient to operate, including a circuit breaker housing 1 and three equidistantly distributed terminal mechanisms 3 installed on the housing 1, the terminal mechanism 3 on the circuit breaker housing is convenient for installing the connecting wires connected to the circuit breaker, three equidistantly distributed mounting grooves 2 are opened on the top outer wall of the housing 1, the terminal mechanism 3 is installed on the inner wall of the mounting groove 2, and the setting of the mounting groove 2 facilitates the installation of the terminal mechanism 3.

[0032] During use, the installation of the wiring mechanism 3 is facilitated by the installation slot 2 on the circuit breaker housing 1 . The arrangement of the wiring mechanism 3 facilitates the installation of the copper plate on the circuit breaker.

[0033] Reference Figure 2 A circular groove 4 is provided on the inner wall at the bottom of the mounting groove 2, and two symmetrically arranged rib grooves 5 are provided on the inner wall at the bottom of the mounting groove 2. The cooperation between the circular groove 4 and the rib groove 5 in the mounting groove 2 facilitates the installation of the auxiliary wiring mechanism 3. Limiting grooves 6 are provided on the inner walls on both sides of the two rib grooves 5. The circular groove 4 and the two rib grooves 5 in the mounting groove 2 facilitate the quick installation of the wiring mechanism 3.

[0034] Reference Figure 2-4 The wiring mechanism 3 includes a connecting plate 7, which is made of copper to facilitate the transmission of electrical energy. A circular opening is provided on the outer wall of the top of the connecting plate 7, and a threaded sleeve 10 is fixedly connected to the inner wall of the circular opening. The setting of the circular opening facilitates the installation of the threaded sleeve 10. The setting of the threaded sleeve 10 facilitates the connection of the connecting wire of the auxiliary circuit breaker. The threaded sleeve 10 is conveniently installed through the circular opening on the connecting plate 7. The setting of the threaded sleeve 10 facilitates the installation of the auxiliary connecting wire.

[0035] Reference Figure 3-4, one side outer wall of the connecting plate 7 is fixedly connected with an inclined welding plate 9, which is fixed on the connecting plate 7. The setting of the welding plate 9 is convenient for electrically connecting the connecting plate 7 to the electrical components in the circuit breaker. The top outer wall of the connecting plate 7 is provided with a plurality of equally distributed anti-slip grooves 8. The setting of the anti-slip grooves 8 can effectively prevent the connecting wires from detaching from the connecting plate 7 of the circuit breaker. Two symmetrically arranged mounting components 14 are installed on the bottom outer wall of the connecting plate 7. The setting of the two mounting components 14 facilitates the auxiliary connecting plate 7 to be fixed to the circuit breaker housing. The setting of the connecting plate 7 is convenient for connecting the wires connecting the circuit breaker. The setting of the welding plate 9 facilitates the electrical connection of the connecting plate 7 to the conductive elements in the circuit breaker housing. The setting of the anti-slip grooves 8 facilitates the prevention of slipping of the connecting wires on the circuit breaker. The setting of the two mounting components 14 facilitates the fixing of the connecting plate 7 to the circuit breaker housing.

[0036] Reference Figure 3-4 The outer wall of the top of the connecting plate 7 is provided with two symmetrically arranged grooves 12, and the inner walls of the bottom of the two grooves 12 are rotatably connected to the rotating part 13 of the driving installation assembly 14. The setting of the grooves 12 is convenient for hiding the rotating part 13 and protecting the rotating part 13. The inner wall of the threaded sleeve 10 is screwed with a locking bolt 11. The cross-section of the locking bolt 11 is a T-shaped structure. The locking bolt 11 is screwed into the threaded sleeve 10, which makes it convenient to press the copper nose onto the connecting plate 7. The setting of the two grooves 12 on the connecting plate 7 facilitates the hidden installation of the rotating part 13, thereby avoiding the protrusion of the rotating part 13 affecting the normal installation of the connecting wire. The setting of the rotating part 13 is convenient for adjusting the installation assembly 14, and the setting of the threaded sleeve 10 facilitates the installation of the locking bolt 11.

[0037] Reference Figure 5 The mounting assembly 14 includes a mounting post 15 fixedly connected to the outer wall of the bottom of the connecting plate 7, and a mounting cavity 16 is opened inside the mounting post 15. The outer walls on both sides of the mounting cavity 16 are opened, and the inner walls of the two openings are slidably connected to the limit seat 18. The opening of the opening facilitates the sliding installation of the limit seat 18. The opening of the mounting cavity 16 facilitates the collection of the limit seat 18 into the mounting cavity 16, thereby realizing the disassembly and assembly of the mounting post 15. The specifications of the limit seat 18 match the specifications of the limit groove 6. When the limit seat 18 is inserted into the limit groove 6, the mounting post 15 can be fixed in the rib groove 5. The mounting post 15 is plugged into the inner wall of the rib groove 5. The opening of the mounting cavity 16 in the mounting post 15 facilitates the sliding installation of the two limit seats 18. The limit seat 18 is inserted into the limit groove 6, thereby facilitating the fixing of the mounting post 15 in the rib groove 5.

[0038] Reference Figure 5The inner wall of the mounting cavity 16 is slidably connected to two symmetrically arranged sliding seats 17. The opening of the mounting cavity 16 facilitates the sliding installation of the sliding seat 17, and the two sliding seats 17 are respectively fixedly connected to the two limit seats 18. The two sliding seats 17 slide in the mounting cavity 16, and then the two limit seats 18 are driven to move by the sliding seats 17. The outer walls of the opposite sides of the two sliding seats 17 are rotatably connected to two driving plates 21. The setting of the four driving plates 21 facilitates the direct pulling of the two sliding seats 17 to move, and the two limit seats 18 are driven to move by the two sliding seats 17 in the mounting cavity 16. The setting of the four driving plates 21 facilitates the two sliding seats 17 to move toward or away from each other.

[0039] Reference Figure 5 , the inner walls on both sides of the mounting cavity 16 are rotatably connected with the same bidirectional screw 19, the bidirectional screw 19 is vertically installed on the inner wall of the mounting cavity 16, and the outer wall of the bidirectional screw 19 is screwed with two symmetrically arranged threaded sleeves 20. When the bidirectional screw 19 rotates, it is convenient to directly drive the two threaded sleeves 20 to move toward or away from each other. The four driving plates 21 are respectively rotatably connected to the outer walls of the two threaded sleeves 20. When the two threaded sleeves 20 move toward each other, it is convenient to directly pull the two sliding seats 17 toward each other through the driving plate 21. When the two threaded sleeves 20 move away from each other, it is convenient to directly drive the two sliding seats 17 to move away from each other. One end of the transmission shaft of the rotating part 13 is fixedly connected On the bidirectional screw 19, the setting of the rotating part 13 facilitates manual rotation of the bidirectional screw 19, and the outer wall of the bottom of the mounting column 15 is fixedly connected to a rubber pad 22. The setting of the rubber pad 22 can effectively reduce the wear between the mounting column 15 and the rib groove 5. The bidirectional screw 19 is rotated and installed through the mounting cavity 16. When the bidirectional screw 19 rotates, it is convenient to directly drive the two threaded sleeves 20 to move toward or away from each other. When the two threaded sleeves 20 move, the driving plate 21 drives the two sliding seats 17 to move. When the sliding seat 17 moves, it is convenient to drive the limit seat 18 to move. The setting of the rubber pad 22 can effectively reduce the wear between the mounting column 15 and the rib groove 5.

[0040] The implementation principle of the present application is as follows: during use, when the wiring mechanism 3 needs to be installed, first insert the threaded sleeve 10 on the connecting plate 7 into the circular groove 4, and at the same time, insert the two mounting components 14 into the two ridge grooves 5 respectively. After determining the position, the rotating part 13 is driven to rotate by a socket wrench. When the rotating part 13 rotates, it directly drives the bidirectional screw 19 to rotate. When the bidirectional screw 19 rotates, it directly drives the two threaded sleeves 20 thereon to move toward or away from each other. When the two threaded sleeves 20 move toward each other, it is convenient to directly drive the sliding seat 17 to move through the driving plate 21. When the sliding seat 17 moves, it is convenient to directly drive the limit seat 18 to move. When the limit seat 18 is inserted into the limit groove 6, it is convenient to fix the connecting plate 7 on the outer shell 1.

[0041] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A terminal block for a molded case circuit breaker, comprising a housing (1) of the circuit breaker and three equally spaced terminal mechanisms (3) mounted on the housing (1), characterized in that: The outer wall of the top of the housing (1) is provided with three equally spaced mounting grooves (2), and the wiring mechanism (3) is mounted on the inner wall of the mounting groove (2).

2. The terminal block for a molded case circuit breaker according to claim 1, characterized in that: The bottom inner wall of the installation groove (2) is provided with a circular groove (4), and the bottom inner wall of the installation groove (2) is provided with two symmetrically arranged rib grooves (5), and both side inner walls of the two rib grooves (5) are provided with limiting grooves (6).

3. The terminal block for a molded case circuit breaker according to claim 2, characterized in that: The wiring mechanism (3) comprises a connecting plate (7), and a circular opening is provided on the outer wall of the top of the connecting plate (7), and a threaded sleeve (10) is fixedly connected to the inner wall of the circular opening.

4. The terminal block for a molded case circuit breaker according to claim 3, characterized in that: An inclined welding plate (9) is fixedly connected to one side outer wall of the connecting plate (7), a plurality of equally spaced anti-slip grooves (8) are provided on the top outer wall of the connecting plate (7), and two symmetrically arranged mounting assemblies (14) are installed on the bottom outer wall of the connecting plate (7).

5. The terminal block for a molded case circuit breaker according to claim 4, characterized in that: The top outer wall of the connecting plate (7) is provided with two symmetrically arranged grooves (12), and the bottom inner walls of the two grooves (12) are rotatably connected to the rotating part (13) of the drive mounting assembly (14), and the inner wall of the threaded sleeve (10) is screwed with a locking bolt (11).

6. The terminal block for a molded case circuit breaker according to claim 5, characterized in that: The mounting assembly (14) includes a mounting column (15) fixedly connected to the outer wall of the bottom of the connecting plate (7), and a mounting cavity (16) is provided inside the mounting column (15), both outer walls of the mounting cavity (16) are provided with openings, and the inner walls of the two openings are slidably connected to a limiting seat (18), the specifications of the limiting seat (18) match the specifications of the limiting groove (6), and the mounting column (15) is plugged into the inner wall of the rib groove (5).

7. The terminal block for a molded case circuit breaker according to claim 6, characterized in that: The inner wall of the installation cavity (16) is slidably connected to two symmetrically arranged sliding seats (17), and the two sliding seats (17) are respectively fixedly connected to two limit seats (18). The outer walls on opposite sides of the two sliding seats (17) are rotatably connected to two driving plates (21).

8. The terminal block for a molded case circuit breaker according to claim 7, characterized in that: The inner walls on both sides of the installation cavity (16) are rotatably connected to the same bidirectional screw (19), and the outer wall of the bidirectional screw (19) is screwed to two symmetrically arranged threaded sleeves (20), the four driving plates (21) are rotatably connected to the outer walls of the two threaded sleeves (20), one end of the transmission shaft of the rotating part (13) is fixedly connected to the bidirectional screw (19), and the outer wall of the bottom of the installation column (15) is fixedly connected to a rubber pad (22).

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