Molded case circuit breaker fixing plate convenient to disassemble and assemble

Abstract

A fixing plate of a molded case circuit breaker convenient to disassemble and assemble comprises a bottom plate, a long plate, a plurality of fixing holes, a plurality of mounting holes and a plurality of clamping plates, the upper portion of the front face of the bottom plate is provided with a beacon, handles are arranged on the two sides of the front face of the bottom plate, the middle of the front face of the bottom plate is provided with a plurality of fixing holes and mounting holes, and the mounting holes are located in the four corners of the bottom plate and fixedly connected with the bottom plate. Long plates are arranged at the upper end and the lower end of the bottom plate, a plurality of wire holes are formed in the plurality of long plates, clamping devices are arranged on the plurality of long plates, each clamping device comprises a fixing block and a clamping block, the clamping devices are additionally arranged on the fixing plates, acting force is applied to the clamping blocks through springs, so that the clamping blocks clamp the molded case circuit breaker, and the molded case circuit breaker is clamped by the clamping blocks. The anti-skid pads on the surfaces of the clamping blocks can better clamp the molded case circuit breaker, and the device can prevent the molded case circuit breaker from loosening and falling off due to vibration in the testing process to affect the testing result and the product safety.

Description

Technical Field

[0001] The utility model belongs to the technical field related to fixing plates, and particularly relates to a fixing plate for a plastic case circuit breaker which is convenient for disassembly and assembly. Background Art

[0002] MCCB (Molded Case Circuit Breaker) is a common electrical protection device used to disconnect the current in a circuit to protect electrical equipment and personnel safety. For the life test of the MCCB plastic case, a specially designed test device, namely the MCCB plastic case life test bench, is usually required. The fixing plate of the plastic case circuit breaker is used to install and fix the plastic case circuit breaker on the MCCB plastic case life test bench. However, during the test, the screws used to connect and fix the plastic case circuit breaker to the fixing plate may become loose due to vibration, which will affect the test results and product safety. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a fixing plate for a plastic case circuit breaker which is convenient for disassembly and assembly, so as to solve the problem that the screws used to connect and fix the plastic case circuit breaker to the fixing plate may become loose due to vibration during the test, which will affect the test results and product safety as mentioned in the above background art.

[0004] To achieve the above purpose, the utility model provides the following technical solutions:

[0005] A fixing plate for a plastic case circuit breaker which is convenient for disassembly and assembly, comprising:

[0006] A bottom plate, a pointing mark is arranged above the front surface of the bottom plate, handles are arranged on both sides of the front surface of the bottom plate, and a plurality of fixing holes are arranged in the middle of the front surface of the bottom plate;

[0007] Mounting holes, a plurality of mounting holes are located at the four corners of the bottom plate, and the plurality of mounting holes are fixedly connected to the bottom plate;

[0008] Long plates, long plates are arranged at both the upper and lower ends of the bottom plate, a plurality of wire holes are arranged on the plurality of long plates, and a clamping device is arranged on each of the plurality of long plates, and the clamping device comprises a fixed block and a clamping block.

[0009] As an optional implementation manner, the fixed block is located above the long plate, the bottom end of the fixed block is fixedly connected to the top end of the long plate, and a limiting block is arranged on the front surface of the fixed block.

[0010] As an optional implementation manner, the back surface of the limiting block is fixedly connected to the front surface of the fixed block, a plurality of through holes penetrating through the upper and lower surfaces are arranged on the limiting block, and limiting rods are arranged in the plurality of through holes.

[0011] As an alternative embodiment, the limiting rod can slide up and down in the through hole. One end of the limiting rod is located below the limiting block, and a clamping block is provided at one end of the limiting rod.

[0012] As an alternative embodiment, the top end of the clamping block is fixedly connected to one end of the limiting rod. An anti-slip pad is provided at the bottom end of the clamping block, and the top end of the anti-slip pad is fixedly connected to the bottom end of the clamping block. A spring is sleeved on the rod body of the limiting rod between the clamping block and the limiting block.

[0013] As an alternative embodiment, the other end of the limiting rod is located above the limiting block. A blocking block is provided at the other end of the limiting rod, and the bottom end of the blocking block is fixedly connected to the other end of the limiting rod. A pulling block is provided above the blocking block, and the bottom end of the pulling block is fixedly connected to the top end of the blocking block. The long board below the bottom plate is correspondingly provided with the same clamping device.

[0014] As an alternative embodiment, a heat conducting plate is provided on the back surface of the bottom plate, and the heat conducting plate is fixedly connected to the bottom plate. A silicone grease is coated on the back surface of the heat conducting plate, and a heat dissipating plate is provided on the back surface of the silicone grease.

[0015] As an alternative embodiment, a plurality of holes are provided on the heat dissipating plate, and heat dissipating fins are provided on the back surface of the heat dissipating plate. The heat dissipating plate is fixed to the heat conducting plate by screwing through the holes.

[0016] Compared with the prior art, the present utility model provides a fixing plate for a plastic shell circuit breaker that is convenient for disassembly and assembly, and has the following beneficial effects:

[0017] 1. Prevent loosening and falling: A clamping device is added to the fixing plate. By applying a force to the clamping block through the spring, the clamping block clamps the plastic shell circuit breaker. The anti-slip pad on the surface of the clamping block can better clamp the plastic shell circuit breaker. This device can prevent the plastic shell circuit breaker from loosening and falling due to vibration during the test, which may affect the test results and product safety.

[0018] 2. Enhance heat dissipation: By adding a heat conducting plate, silicone grease, heat dissipating plate and heat dissipating fins to the back surface of the fixing plate, the heat dissipation performance of the fixing plate is enhanced, thereby reducing the influence of the overheating caused by energization on the test results during the test of the plastic shell circuit breaker. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional structural schematic diagram of the present utility model.

[0020] Figure 2 It is a three-dimensional structural schematic diagram of the clamping device of the present utility model.

[0021] Figure 3 It is a front plane structural schematic diagram of the clamping device of the present utility model.

[0022] Figure 4 This is a three-dimensional structural schematic diagram of the heat dissipation plate of the present utility model.

[0023] Figure 5 This is a three-dimensional structural schematic diagram of the prototype of the present utility model.

[0024] Figure 6 This is a three-dimensional structural schematic diagram of the test machine of the present utility model.

[0025] In the figure: 1, bottom plate; 2, pointing mark; 3, handle; 4, fixing hole; 5, mounting hole; 6, long plate; 7, wire hole; 8, fixing block; 9, limiting block; 10, through hole; 11, limiting rod; 12, clamping block; 13, anti-slip pad; 14, spring; 15, blocking block; 16, pulling block; 17, heat conducting plate; 18, silicone grease; 19, heat dissipation plate; 20, hole; 21, heat dissipation fin; 22, screw; 23, workbench; 24, back plate; 25, test article; 26, robotic arm. Specific embodiments

[0026] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0027] The present utility model provides as Figure 1-6 shown

[0028] A fixing plate of a molded case circuit breaker that is convenient for disassembly and assembly comprises a base plate 1, a pointer 2 is provided on the upper front of the base plate 1, the pointer 2 is used to determine the installation direction to prevent installation errors, handles 3 are provided on both sides of the front of the base plate 1, the handles 3 are used to hold the base plate 1, a plurality of fixing holes 4 are provided in the middle of the front of the base plate 1, the fixing holes 4 are used to install and fix a test product 25 on the base plate 1; mounting holes 5, the plurality of mounting holes 5 are located at the four corners of the base plate 1, the mounting holes 5 are used to install and fix the base plate 1 on a test machine, and the plurality of mounting holes 5 are fixedly connected to the base plate 1; a long plate 6, the upper and lower ends of the base plate 1 are provided with long plates 6, the long plates 6 are fixedly connected to the base plate 1, a plurality of long plates 6 are provided with a plurality of wire holes 7, the wire holes 7 are used to pass the wires on the test product 25, a plurality of long plates 6 are provided with clamping devices, the clamping devices are used to clamp the test product 25 to prevent the test product 25 from loosening and falling due to testing and causing damage, and the clamping device comprises a fixing block 8 and a clamping block 12. The testing machine includes a workbench 23, and a back plate 24 is provided on the rear side of the workbench 23. When in use, the test product 25 is screwed onto the test product 25 through the fixing hole 4 to fix the test product 25 on the front side of the base plate 1. Then the wires of the test product 25 are passed through the wire hole 7, and then the base plate 1 is screwed onto the back plate 24 through the mounting hole 5 to fix it. A mechanical arm 26 is provided above the workbench 23, and the mechanical arm 26 will move up and down to bend the switch on the front side of the test product 25 to test its service life.

[0029] like Figure 2 and Figure 3 As shown, the fixing block 8 is located above the long board 6, the bottom end of the fixing block 8 is fixedly connected to the top end of the long board 6, and a limit block 9 is provided on the front of the fixing block 8. The back of the limit block 9 is fixedly connected to the front of the fixing block 8, and the limit block 9 is provided with a plurality of through holes 10 penetrating the upper and lower surfaces, and a limit rod 11 is provided in each of the plurality of through holes 10. Figure 3 As shown, the limit rod 11 can slide up and down in the through hole 10, one end of the limit rod 11 is located below the limit block 9, and one end of the limit rod 11 is provided with a clamping block 12, which is used to clamp the test product 25. The top of the clamping block 12 is fixedly connected to one end of the limit rod 11, and the bottom of the clamping block 12 is provided with an anti-skid pad 13, and the top of the anti-skid pad 13 is fixedly connected to the bottom of the clamping block 12. The limit rod 11 is located between the clamping block 12 and the limit block 9, and a spring 14 is sleeved on the rod body, and the spring 14 is used to apply a clamping force to the clamping block 12 to clamp the middle test product 25. Figure 3As shown, the other end of the limit rod 11 is located above the limit block 9. A blocking block 15 is provided at the other end of the limit rod 11. The bottom end of the blocking block 15 is fixedly connected to the other end of the limit rod 11. A pulling block 16 is provided above the blocking block 15. The bottom end of the pulling block 16 is fixedly connected to the top end of the blocking block 15. The long plate 6 below the bottom plate 1 is correspondingly provided with the same clamping device. When in use, first pull the pulling blocks 16 at the upper and lower ends outwards to reserve enough space between the upper and lower clamping blocks 12. Then place the test piece 25 between the two clamping blocks 12. Then release the pulling blocks 16, and the spring 14 will push against the clamping blocks 12 to clamp the test piece 25. With this device, the test piece 25 can be clamped to prevent the test piece 25 from loosening the screws due to vibration during the test, so that the test piece 25 is displaced and dropped, affecting the test and damaging the test piece 25.

[0030] As Figure 4 shown, a heat conduction plate 17 is provided on the back of the bottom plate 1. The material of the heat conduction plate 17 is aluminum alloy. Aluminum alloy is a commonly used heat conduction material with good heat conduction performance and electrical conductivity. The heat conduction plate 17 made of aluminum alloy is lightweight and has a low cost. The heat conduction plate 17 is fixedly connected to the bottom plate 1. A silicone grease 18 is coated on the back of the heat conduction plate 17. The silicone grease 18 is used to assist in heat dissipation. A heat dissipation plate 19 is provided on the back of the silicone grease 18. A plurality of holes 20 are provided on the heat dissipation plate 19. Heat dissipation fins 21 are provided on the back of the heat dissipation plate 19. The heat dissipation plate 19 is fixed to the heat conduction plate 17 by screwing the screws 22 through the holes 20. Through this setting, the heat dissipation performance of the bottom plate 1 can be enhanced, thereby reducing the influence of the overheating of the test piece 25 due to energization during the test on the test result.

[0031] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A fixing plate of a plastic case circuit breaker that is convenient for disassembly and assembly, characterized in that, Including: A bottom plate (1), with a pointing mark (2) provided above the front of the bottom plate (1), handles (3) provided on both sides of the front of the bottom plate (1), and a plurality of fixing holes (4) provided in the middle of the front of the bottom plate (1); Mounting holes (5), a plurality of mounting holes (5) are located at the four corners of the bottom plate (1), and the plurality of mounting holes (5) are fixedly connected to the bottom plate (1); Long plates (6), long plates (6) are provided at both the upper and lower ends of the bottom plate (1), a plurality of wire holes (7) are provided on the plurality of long plates (6), and a clamping device is provided on each of the plurality of long plates (6), and the clamping device includes a fixing block (8) and a clamping block (12).

2. The fixing plate of a plastic case circuit breaker that is convenient for disassembly and assembly according to claim 1, wherein: The fixing block (8) is located above the long plate (6), the bottom end of the fixing block (8) is fixedly connected to the top end of the long plate (6), and a limiting block (9) is provided on the front of the fixing block (8).

3. The fixing plate of a plastic case circuit breaker that is convenient for disassembly and assembly according to claim 2, wherein: The back of the limiting block (9) is fixedly connected to the front of the fixing block (8), a plurality of through holes (10) penetrating through the upper and lower surfaces are provided on the limiting block (9), and a limiting rod (11) is provided in each of the plurality of through holes (10).

4. The fixing plate of a plastic case circuit breaker that is convenient for disassembly and assembly according to claim 3, characterized in that: The limiting rod (11) can slide up and down in the through hole (10), one end of the limiting rod (11) is located below the limiting block (9), and a clamping block (12) is provided at one end of the limiting rod (11).

5. The fixing plate of a plastic case circuit breaker that is convenient for disassembly and assembly according to claim 4, characterized in that: The top end of the clamping block (12) is fixedly connected to one end of the limiting rod (11), an anti-slip pad (13) is provided at the bottom end of the clamping block (12), the top end of the anti-slip pad (13) is fixedly connected to the bottom end of the clamping block (12), and a spring (14) is sleeved on the rod body of the limiting rod (11) between the clamping block (12) and the limiting block (9).

6. The fixing plate of a plastic case circuit breaker that is convenient for disassembly and assembly according to claim 5, wherein: The other end of the limiting rod (11) is located above the limiting block (9), a blocking block (15) is provided at the other end of the limiting rod (11), the bottom end of the blocking block (15) is fixedly connected to the other end of the limiting rod (11), a pulling block (16) is provided above the blocking block (15), the bottom end of the pulling block (16) is fixedly connected to the top end of the blocking block (15), and a clamping device identical to that above is provided on the long plate (6) below the bottom plate (1).

7. The fixing plate of a plastic case circuit breaker that is convenient for disassembly and assembly according to claim 6, characterized in that: A heat conducting plate (17) is provided on the back of the bottom plate (1), the heat conducting plate (17) is fixedly connected to the bottom plate (1), silicone grease (18) is coated on the back of the heat conducting plate (17), and a heat dissipation plate (19) is provided on the back of the silicone grease (18).

8. The fixing plate of a plastic case circuit breaker that is convenient for disassembly and assembly according to claim 7, characterized in that: A plurality of holes (20) are provided on the heat dissipation plate (19), heat dissipation fins (21) are provided on the back of the heat dissipation plate (19), and the heat dissipation plate (19) is fixed by screwing a screw (22) through the hole (20) onto the heat conducting plate (17).

Images