Breaker support

Abstract

The utility model relates to the technical field of circuit breakers, and particularly discloses a circuit breaker support. The circuit breaker support comprises a support body, the support body is internally provided with a plurality of bearing cavities for mounting circuit breakers, one side, deviating from the bearing cavities, of the support body is connected with a metal piece, and the support body is provided with a mounting hole for inserting the metal piece. The circuit breaker support is short in production period, high in production efficiency and high in reliability and stability.

Description

Technical Field

[0001] The present application relates to the technical field of circuit breakers, and in particular to a circuit breaker bracket. Background Art

[0002] A circuit breaker is a switching device that can close, carry and interrupt the current under normal circuit conditions, and close, carry and interrupt the current under abnormal circuit conditions within a specified time. The circuit breaker bracket is a load-bearing component that is pre-installed in the equipment cabinet and adapted to the circuit breaker for easy installation.

[0003] In the related art, the circuit breaker bracket is integrally formed by injection molding, and a metal part with a threaded hole is fixed at the bottom thereof by means of an insert. When molding the circuit breaker bracket, the metal part is pre-fixed in an appropriate position in the injection mold, and then the plastic is injected for molding. After the mold is opened, the metal part is tightly wrapped by the cooled and solidified plastic and buried in the plastic. The metal part cooperates with bolts to fix the circuit breaker bracket on the sheet metal in the cabinet.

[0004] The above technical solution still has the following defects: the setting of the insert often complicates the mold structure, prolongs the injection molding cycle, increases the manufacturing cost, and increases the difficulty of automated production. Utility Model Content

[0005] In order to improve production efficiency, the present application provides a circuit breaker bracket.

[0006] The present application provides a circuit breaker bracket, which adopts the following technical solution:

[0007] A circuit breaker bracket comprises a bracket body, wherein a plurality of bearing cavities for installing the circuit breaker are arranged in the bracket body, a metal piece is connected to the side of the bracket body away from the bearing cavity, and the bracket body is provided with a mounting hole for inserting the metal piece.

[0008] By adopting the above technical solution, metal parts can be mass-produced using automated equipment, and the finished metal parts can be quickly pressed into the mounting holes. Compared with the method of one-piece injection molding of inserts, the method of post-installing metal parts has a shorter process cycle, improved production efficiency and output, and a corresponding reduction in manufacturing costs. In addition, the thermal expansion coefficients of metal parts and plastics are inconsistent, and the use of one-piece molding can easily cause internal stress in the final circuit breaker bracket product, causing the bracket body to rupture. If preventive measures are taken to reduce internal stress, the metal parts need to be preheated or dried, which will further increase the manufacturing cycle of the circuit breaker bracket.

[0009] Optionally, a threaded hole is provided in the metal part, and an inner wall of the threaded hole is threadedly connected to an external cabinet.

[0010] By adopting the above technical solution, the detachable connection between the circuit breaker bracket and the external cabinet is realized. Compared with permanent connection methods such as welding or bonding, the threaded detachable connection can provide greater flexibility and convenience, allowing adjustment when necessary to adapt to different installation or operation requirements, so as to achieve position adjustment of the circuit breaker bracket. Angle adjustment, etc.

[0011] Secondly, the threaded connection has high reliability and safety. The correct tightening force and the use of appropriate anti-loosening measures can make the circuit breaker bracket firm and stable. When it is necessary to inspect or replace parts, you only need to unscrew the circuit breaker bracket to perform maintenance operations without destroying or interfering with other parts.

[0012] Optionally, the outer wall of the metal part is provided with stripes, and the stripes are in contact with the inner wall of the mounting hole.

[0013] By adopting the above technical solution, more contact points can be formed on the contact surface of the metal part and the bracket body, thereby increasing the friction between the two, making the metal part more stable and less likely to slide or loosen in the mounting hole. Secondly, the stripes can serve as guides to help the metal part be inserted into the corresponding mounting hole more easily and accurately. During the relative movement between the metal part and the mounting hole, the stripes can reduce the direct wear between the two, thereby extending the service life of the metal part and the bracket body.

[0014] Optionally, the length direction of the stripe is consistent with the length direction of the mounting hole.

[0015] By adopting the above technical solution, the setting direction of the stripes is relatively perpendicular to the rotation direction of the circuit breaker bracket installation, which can make the metal part more stable in the predetermined position. When the metal part is threadedly connected to the external cabinet, the cooperation between the stripes and the inner wall of the installation hole can resist the rotation or movement of the metal part, which can better "anchor" the metal part, increase resistance, and improve the stability and safety of the circuit breaker bracket.

[0016] Optionally, an elastic hook is connected to the outer side of the metal piece, and a slot for the elastic hook to be inserted into is formed on the inner wall of the mounting hole.

[0017] By adopting the above technical solution, the elastic hook can increase the reliability of the connection, making it difficult for the metal part and the bracket body to loosen. The elastic hook achieves the fastening effect of the connection through its structural deformation. When the metal part is inserted into the mounting hole, the elastic hook is squeezed and deformed. During this process, the elastic hook accumulates elastic potential energy. After the metal part is fully inserted into the mounting hole, the elastic hook is clamped into the slot by the elastic force, thereby achieving the anti-drop effect of the metal part and pre-positioning for the subsequent interference assembly of the metal part.

[0018] Optionally, a support block is connected to one side of the bracket body close to the mounting hole, and a plurality of the support blocks are provided.

[0019] By adopting the above technical solution, the support block plays a role of balance and support in the bracket body, which can ensure that the entire structure remains stable under static or dynamic conditions. At the same time, when installing metal parts, the support block can protect the metal parts from external forces, and the metal parts are not easily damaged or deformed. Secondly, the support block has a certain elasticity and can absorb the vibration energy generated by the bracket body when it is stimulated by external stimuli, thereby reducing the impact of vibration on the entire structure.

[0020] Optionally, a plurality of protrusions are connected to the inner wall of the bearing cavity, and the protrusions are used to be connected to the circuit breaker.

[0021] By adopting the above technical solution, the circuit breaker and the bracket body are plugged in, which is convenient for the installation of the circuit breaker and puts it in a good working state.

[0022] Optionally, a plurality of through holes are formed on one side of the bracket body close to the mounting hole, fasteners are provided in the through holes, and the bracket body is connected to the circuit breaker through the fasteners.

[0023] By adopting the above technical solution, the installation of the circuit breaker and the bracket body is realized, the through hole has a simple structure, the processing requirements are low, and the circuit breaker and the bracket body are easy to assemble and disassemble, which is conducive to maintenance and replacement of components.

[0024] In summary, this application has the following beneficial effects:

[0025] By providing a metal piece assembled with the bracket body, the production cycle of the circuit breaker bracket can be shortened, the production efficiency and output can be improved, the bracket body is not easily damaged during assembly, and the reliability and stability of the circuit breaker bracket can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a schematic structural diagram of a circuit breaker bracket according to an embodiment of the present application;

[0027] Figure 2 is a bottom view of a circuit breaker bracket according to an embodiment of the present application;

[0028] Figure 3 is a schematic structural diagram of a metal member in an embodiment of the present application;

[0029] Figure 4 It is a cross-sectional view of a circuit breaker bracket according to an embodiment of the present application.

[0030] Explanation of the accompanying drawings: 1. bracket body; 11. load-bearing cavity; 12. mounting hole; 13. slot; 14. support block; 15. protrusion; 16. through hole; 17. fastener; 2. metal part; 21. threaded hole; 22. stripe; 23. elastic hook. DETAILED DESCRIPTION

[0031] The following is combined with Figure 1-4 This application is described in further detail.

[0032] In the embodiments of the present application, "upper" and "lower" are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly. Figure 1 , that is, the side of the bearing cavity 11 away from the supporting block 14 is the upper side, and the side of the bearing cavity 11 close to the supporting block 14 is the lower side.

[0033] An embodiment of the present application discloses a circuit breaker bracket.

[0034] Reference Figure 1 and Figure 2 The circuit breaker bracket includes a bracket body 1 and a metal part 2. The bracket body 1 is integrally formed in a bracket mold by injection molding, and the metal part 2 is interference-connected with the bracket body 1. A plurality of bearing cavities 11 are arranged at intervals in the bracket body 1. The bearing cavities 11 are used for installing the circuit breaker, and the outer wall of the circuit breaker fits the inner wall of the bearing cavity 11. A mounting hole 12 for inserting the metal part 2 is opened at the bottom of the bracket body 1. The mounting hole 12 is arranged between two adjacent bearing cavities 11, and the metal part 2 does not contact the circuit breaker.

[0035] Reference Figure 3 and Figure 4 The structure of the metal part 2 is a cylindrical structure with one end open and the other end closed. A threaded hole 21 is provided on the side of the metal part 2 close to the opening. The inner wall of the threaded hole 21 is threadedly connected to the external cabinet to achieve a detachable connection of the circuit breaker bracket. A plurality of vertical stripes 22 are arranged at intervals on the outer peripheral side wall of the metal part 2. The length direction of the stripes 22 is consistent with the length direction of the mounting hole 12. The setting direction of the stripes 22 is perpendicular to the rotation direction of the circuit breaker bracket installation, which can improve the stability of the metal part 2. When the metal part 2 is inserted into the mounting hole 12, the stripes 22 fit the inner wall of the mounting hole 12.

[0036] Reference Figure 2 and Figure 3, an elastic hook 23 is fixedly connected to the outer peripheral side wall of the metal part 2. Two elastic hooks 23 are provided and symmetrically arranged on both sides of the width direction of the metal part 2. Each elastic hook 23 is extended along the length direction of the metal part 2. The inner wall of the mounting hole 12 is provided with a slot 13 for the elastic hook 23 to be inserted. After the elastic hook 23 is inserted into the slot 13, the metal part 2 is positioned and is not easy to move or fall off in the mounting hole 12. Afterwards, the metal part 2 is interference-connected with the bracket body 1 by means of a press. The metal part 2 can withstand a large load and impact force, has good stability, and the metal part 2 and the bracket body 1 are not easy to move relative to each other.

[0037] Reference Figure 1 and Figure 2 The bottom of the bracket body 1 is provided with a through hole 16, which is communicated with the bearing cavity 11. A fastener 17 is arranged in the through hole 16, and the bracket body 1 and the circuit breaker are connected by the fastener 17. In the embodiment of the present application, the fastener 17 is preferably a bolt, and the bolt is threadedly connected with the circuit breaker. The bracket body 1 is fixedly connected with a plurality of protrusions 15, which are arranged at the bottom of the bearing cavity 11. When the circuit breaker is plugged into the bracket body 1, the installation of the circuit breaker is facilitated.

[0038] Reference Figure 1 and Figure 2 A support block 14 is fixedly connected to the bottom of the bracket body 1 on the side away from the bearing cavity 11. The support block 14 protrudes relative to the bottom surface of the bracket body 1 and is arranged on both sides of the mounting hole 12 to protect the metal part 2 and also to balance and support the bracket body 1.

[0039] The implementation principle of the circuit breaker bracket of the embodiment of the present application is as follows: during assembly, insert the metal part 2 into the mounting hole 12 so that the elastic hook 23 is inserted into the slot 13 to achieve pre-positioning of the metal part 2, and then use a press to make the metal part 2 interference fit with the bracket body 1 in the mounting hole 12. Then, install the circuit breaker in the corresponding bearing cavity 11, and insert the fastener 17 into the through hole 16 from the bottom of the bracket body 1, so that the circuit breaker and the bracket body 1 are tightly connected through the fastener 17. Finally, the external cabinet is threadedly connected to the inner wall of the threaded hole 21 to achieve the fixation of the circuit breaker bracket.

[0040] 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 bracket, comprising a bracket body (1), wherein the bracket body (1) is provided with a plurality of bearing cavities (11) for installing the circuit breaker, characterized in that: A metal piece (2) is connected to the side of the bracket body (1) facing away from the bearing cavity (11), and the bracket body (1) is provided with a mounting hole (12) for inserting the metal piece (2).

2. The circuit breaker bracket according to claim 1, characterized in that: A threaded hole (21) is provided in the metal part (2), and the inner wall of the threaded hole (21) is threadedly connected to the external cabinet.

3. The circuit breaker bracket according to claim 1, characterized in that: The outer wall of the metal part (2) is provided with stripes (22), and the stripes (22) are in contact with the inner wall of the mounting hole (12).

4. The circuit breaker bracket according to claim 3, characterized in that: The length direction of the stripe (22) is consistent with the length direction of the mounting hole (12).

5. The circuit breaker bracket according to claim 1, characterized in that: An elastic hook (23) is connected to the outer side of the metal piece (2), and a slot (13) for the elastic hook (23) to be inserted is formed on the inner wall of the mounting hole (12).

6. The circuit breaker bracket according to claim 1, characterized in that: A support block (14) is connected to one side of the bracket body (1) close to the mounting hole (12), and a plurality of the support blocks (14) are provided.

7. The circuit breaker bracket according to claim 1, characterized in that: The inner wall of the bearing cavity (11) is connected to a plurality of protrusions (15), and the protrusions (15) are used to be connected to a circuit breaker.

8. The circuit breaker bracket according to claim 1, characterized in that: A plurality of through holes (16) are provided on one side of the bracket body (1) close to the mounting hole (12), and fasteners (17) are provided in the through holes (16). The bracket body (1) is connected to the circuit breaker via the fasteners (17).

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