Multifunctional combined magnetic control circuit breaker

Abstract

The utility model relates to the technical field of magnetic control circuit breakers, and discloses a multifunctional combined type magnetic control circuit breaker which comprises a protection shell, the inner wall of the protection shell is fixedly connected with a mounting plate, the outer wall of the mounting plate is fixedly connected with a protection switch, and the outer side of the protection switch is sequentially connected with a plurality of circuit breaker bodies. The top of the circuit breaker body is provided with a connecting assembly, the connecting assembly is used for splicing the circuit breaker body, the front side of the protective shell is rotatably connected with a protective cover, the inner wall of the protective cover is fixedly connected with a plugging block, and the inner wall of one side of the protective shell is provided with a closing assembly. According to the utility model, through the cooperation between the clamping block and the clamping groove, the circuit breaker body is connected together through the connecting block, thereby facilitating the disassembly and installation of the circuit breaker, and in the practical application, when a certain circuit breaker breaks down, the circuit breaker can be replaced independently, thereby greatly improving the maintenance efficiency and reducing the labor amount of workers.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of magnetic circuit breaker especially relates to multifunctional combined magnetic circuit breaker. BACKGROUND

[0002] Magnetic circuit breaker is a kind of equipment that realizes circuit protection and control using electromagnetic principle, it can automatically cut off circuit when current exceeds set value, to prevent the damage of equipment or fire risk caused by overload or short circuit, magnetic circuit breaker usually has fast response and reliability, is suitable for various electrical equipment and power system, ensures safe operation, in addition, it can also realize the start-stop of circuit by manual operation, facilitates daily maintenance and management.

[0003] Magnetic circuit breaker is mainly composed of electromagnetic coil, contact mechanism, protection mechanism and shell etc., when current flows through electromagnetic coil, magnetic field is generated, and movable iron core is pushed, when current exceeds set safety value, the intensity of magnetic field will enhance, causes the fast movement of iron core, to open contact, cut off circuit, this can effectively prevent overload and short circuit to cause damage to electrical equipment, simultaneously, the protection mechanism of circuit breaker can set different action currents according to needs, to adapt to various application occasions, ensure the safe operation of system.

[0004] Traditional magnetic circuit breaker usually adopts integrated structure design, multiple circuit breakers are fixed together by bolt, to reduce the space occupied during installation, however this can cause the maintenance and replacement of single circuit breaker to become difficult, needs to be disassembled as a whole, makes the efficiency of maintenance decline, further increases repair time and cost, simultaneously, single circuit breaker failure can affect the operation of entire module, increases the vulnerability of system, for this, the person skilled in the art proposes multifunctional combined magnetic circuit breaker to solve the above problems. CONTENT OF UTILITY MODEL

[0005] In order to make up for the above insufficient, the utility model provides multifunctional combined magnetic circuit breaker, aims at improving the problem in prior art that multiple magnetic circuit breakers are fixed together, causes the maintenance and replacement of single circuit breaker to become difficult, needs to be disassembled as a whole, makes the efficiency of maintenance decline.

[0006] To achieve the above object, the utility model provides the following technical scheme: Multifunctional combined magnetic control circuit breaker, including protection shell, the inner wall fixed connection of protection shell has the mounting panel, the outer wall fixed connection of mounting panel has the protection switch, the outside of protection switch is connected with a plurality of circuit breaker body in proper order, the top of circuit breaker body is provided with connecting assembly, connecting assembly is used for splicing circuit breaker body, the front side rotationally connected of protection shell has the protective cover, the inner wall fixed connection of protective cover has the plug -in block, the inside wall of one side of protection shell is provided with closing assembly, closing assembly is used for closing protective cover and avoiding its movement after;

[0007] Connecting assembly includes connecting block, connecting block fixedly connected at the top of circuit breaker body, the inside fixed connection of connecting block has the slide rod, the outside of slide rod is connected with two clamping blocks of sliding, two spring no.

[0008] Further, the closing assembly includes a fixed block, the fixed block is fixedly connected to the inner wall of the protection shell, the upper and lower ends of the fixed block are internally provided with a limiting slot, the limiting slot is internally fixedly connected with a spring two, one end of the spring two is fixedly connected with a movable block.

[0009] Further, the movable block is externally fixedly connected with a fixed rod, one end of the fixed rod extends to the outside of the fixed block and is fixedly connected with a spherical block.

[0010] Further, the top of the connecting block is provided with a sliding groove, and the inner wall of the sliding groove is slidably connected with the outer wall of the push block.

[0011] Further, the two clamping blocks are symmetrically arranged, and the clamping blocks are clamped with the inner part of the clamping groove.

[0012] Further, the spring one is sleeved on the outside of the slide rod, and the clamping block is slidably connected in the inside of the connecting block.

[0013] Further, the movable block is slidably connected in the inside of the limiting slot, and the outside of the spherical block is slidably connected with the outside of the plug-in block.

[0014] Further, a plurality of heat dissipation holes are formed on the left and right sides of the protection shell, and an observation port is formed on the front side of the protective cover.

[0015] The utility model has the advantages of:

[0016] 1. In the utility model, through the cooperation between the clamping block and the clamping groove, the connecting block connects the circuit breaker body together, and then the connection realized by the clamping mode not only facilitates the disassembly and installation of the circuit breaker, but also in practical application, when a certain circuit breaker fails, it can be replaced individually, greatly improving the maintenance efficiency and reducing the labor amount of workers.

[0017] 2. In the utility model, the pressure transmitted to the plug-in block by the spring two can maintain the stability of the closed protective cover, effectively prevent external factors from affecting the electronic elements inside the protective shell, prolong the service life of the circuit breaker, and when the protective cover needs to be opened, it can be pulled with force, simple operation, convenient and fast. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the perspective view of the multifunctional combined magnetic control circuit breaker provided by the utility model;

[0019] Figure 2 It is the protective shell structure schematic view of the multifunctional combined magnetic control circuit breaker provided by the utility model;

[0020] Figure 3 It is the connecting block structure schematic view of the multifunctional combined magnetic control circuit breaker provided by the utility model;

[0021] Figure 4 It is the clamping block structure schematic view of the multifunctional combined magnetic control circuit breaker provided by the utility model;

[0022] Figure 5 It is the fixed block structure schematic view of the multifunctional combined magnetic control circuit breaker provided by the utility model.

[0023] LEGEND:

[0024] 1, protective shell; 2, protective cover; 3, circuit breaker body; 4, protection switch; 5, plug-in block; 6, mounting plate; 7, fixed block; 8, connecting block; 9, sliding slot; 10, push block; 11, sliding rod; 12, clamping block; 13, spring one; 14, connecting rod; 15, clamping groove; 16, limiting groove; 17, spring two; 18, movable block; 19, fixed rod; 20, spherical block; 21, heat dissipation hole. DETAILED DESCRIPTION

[0025] The technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0026] Reference Figure 1 - Figure 3 This utility model provides an embodiment of a multi-functional combined magnetic circuit breaker, including a protective shell 1, which can ensure the stable operation of the circuit breaker in various complex working environments and extend the service life of internal components. The inner wall of the protective shell 1 is fixedly connected to a mounting plate 6, and the outer wall of the mounting plate 6 is fixedly connected to a protective switch 4. Multiple circuit breaker bodies 3 are sequentially connected to the outer side of the protective switch 4, providing a mounting base for the protective switch 4 and the circuit breaker bodies 3, so that they can be stably fixed inside the protective shell 1. A connecting component is provided on the top of the circuit breaker body 3, which is used to splice the circuit breaker body 3. A protective cover 2 is rotatably connected to the front side of the protective shell 1, and a plug block 5 is fixedly connected to the inner wall of the protective cover 2. A closing component is provided on one inner wall of the protective shell 1, which is used to prevent the protective cover 2 from moving after it is closed. Multiple heat dissipation holes 21 are provided on both the left and right sides of the protective shell 1 to dissipate the heat generated inside the circuit breaker during operation, maintain the internal temperature within a suitable range, and ensure the stable performance of each component. An observation port is provided on the front side of the protective cover 2, which is convenient for staff to understand the operation of the circuit breaker.

[0027] Reference Figure 4 The connecting assembly includes a connecting block 8, which is fixedly connected to the top of the circuit breaker body 3. A slide rod 11 is fixedly connected inside the connecting block 8, and two locking blocks 12 are slidably connected to the outside of the slide rod 11. The slide rod 11 provides a sliding track for the locking blocks 12, ensuring smooth movement of the locking blocks 12. A spring 13 is provided between the two locking blocks 12, with both ends of the spring 13 fixedly connected to the outer walls of the two locking blocks 12, allowing the spring 13 to push the locking blocks 12 to achieve a reset effect. A connecting rod 14 is rotatably connected to the outside of the locking blocks 12. One end of the connecting rod 14 is rotatably connected to the push block 10. The connecting rod 14 plays the role of transmitting force and movement. The side of the connecting block 8 is provided with a slot 15, which can be closed with the slot 12 to restrict its movement and realize the splicing between the two circuit breaker bodies 3. The top of the connecting block 8 is provided with a sliding groove 9. The inner wall of the sliding groove 9 is slidably connected to the outer wall of the push block 10. The two slots 12 are symmetrically arranged. The slots 12 are engaged with the inside of the slots 15. The spring 13 is sleeved on the outside of the slide rod 11. The slots 12 are slidably connected inside the connecting block 8.

[0028] Specifically, when the circuit breaker needs to be disassembled, the operator pushes the push block 10, and the push block 10 slides along the direction of the sliding groove 9. In this process, the push block 10 moves the two connecting rods 14 connected thereto, thereby causing the clamping block 12 to slide along the sliding rod 11. At this time, the two clamping blocks 12 are close to each other, and the clamping block 12 exerts pressure on the spring 13 during sliding, causing the spring 13 to contract. With the movement of the clamping block 12, the clamping block 12 can be removed from the clamping groove 15 on the side of the connecting block 8, thereby achieving separation of the circuit breaker body 3. In this way, the disassembly operation of the circuit breaker and other parts is completed, which is convenient and fast. When installing, the clamping block 12 is inserted into the clamping groove 15. At this time, the spring 13 loses the pressure of the clamping block 12 and will push the clamping block 12 back to its original position under the elastic action of itself, so that the clamping block 12 and the clamping groove 15 are re-clamped, thereby firmly fixing the plug-in block 5. This connection achieved by clamping not only facilitates the disassembly and installation of the circuit breaker, but also greatly improves the maintenance efficiency and reduces the labor of workers when a certain circuit breaker fails.

[0029] With reference to Figure 2 and Figure 5 , the closing assembly includes a fixed block 7 fixedly connected to the inner wall of the protective shell 1. The upper and lower ends of the fixed block 7 are internally provided with limiting grooves 16 for accommodating the movable block 18 and providing sliding guidance and limiting for the movable block 18. The limiting grooves 16 are internally fixedly connected with springs 17, one end of the spring 17 is fixedly connected with the movable block 18, the outer part of the movable block 18 is fixedly connected with a fixed rod 19, one end of the fixed rod 19 extends to the outside of the fixed block 7 and is fixedly connected with a spherical block 20. The spring 17 can tightly clamp the plug-in block 5 between the two spherical blocks 20, maintaining the stability of the protective cover 2 after being closed. The movable block 18 is slidingly connected inside the limiting groove 16, and the outer part of the spherical block 20 is slidingly connected with the outer part of the plug-in block 5.

[0030] Specifically, when the protective cover 2 is closed, first rotate the protective cover 2 so that the plug-in block 5 is inserted between the two spherical blocks 20, the plug-in block 5 exerts pressure on the two spherical blocks 20, which pushes the fixed rod 19 to move, the fixed rod 19 drives the movable block 18 connected thereto to slide in the limiting groove 16, at the same time, the movable block 18 exerts pressure on the spring two 17, and at this time, the elastic force of the spring two 17 will generate a counter force, which is transmitted to the spherical block 20 through the movable block 18 and the fixed rod 19, so that the plug-in block 5 is tightly clamped between the two spherical blocks 20, maintaining the stability of the closed protective cover 2, effectively preventing external factors from affecting the electronic components inside the protective shell 1, prolonging the service life of the circuit breaker, and when it is necessary to open the protective cover 2, only need to pull the protective cover 2 with force to overcome the friction and pressure of the spring two 17 on the plug-in block 5 through the spherical block 20, so that the plug-in block 5 can be pulled out from between the two spherical blocks 20, realizing the opening operation of the protective cover 2.

[0031] Working principle: when the circuit breaker needs to be maintained and disassembled, the push block 10 is pushed to slide along the direction of the sliding groove 9, thereby driving the two connecting rods 14 to rotate, and the connecting rods 14 drive the clamping blocks 12 to slide along the sliding rods 11, at this time, the two clamping blocks 12 will approach each other and exert pressure on the spring one 13 to make it contract, then the clamping blocks 12 can be removed from the clamping grooves 15, thereby realizing the separation of the circuit breaker body 3, while during installation, the clamping blocks 12 are inserted into the clamping grooves 15 and reset under the push of the spring one 13 to realize the clamping with the clamping grooves 15, thereby fixing the circuit breaker body 3, which is convenient for disassembly and installation of the circuit breaker through clamping, and the faulty circuit breaker can be replaced separately, improving the maintenance efficiency and reducing the labor amount of workers, secondly, the plug-in block 5 is inserted between the two spherical blocks 20 and exerts pressure on the two spherical blocks 20 to push the fixed rod 19 to move, thereby making the movable block 18 slide in the limiting groove 16 and exerting pressure on the spring two 17 to make it contract, at this time, the elastic force of the spring two 17 will generate a counter force, which is transmitted to the spherical block 20, so that the plug-in block 5 is clamped between the two spherical blocks 20, maintaining the stability of the closed protective cover 2, which plays a good protection role on the internal electronic components and prolongs the service life of the circuit breaker, and when it is necessary to open the protective cover 2, only need to pull it with force.

[0032] Finally, it should be noted that the above description is only a preferred embodiment of the present application and is not intended to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement for some technical features, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. Multifunction combined magnetic circuit breaker comprising a protective casing (1), characterized in that: The inner wall of the protective shell (1) is fixedly connected with a mounting plate (6), the outer wall of the mounting plate (6) is fixedly connected with a protection switch (4), the outer side of the protection switch (4) is sequentially connected with a plurality of circuit breaker bodies (3), the top of the circuit breaker body (3) is provided with a connecting assembly for splicing the circuit breaker body (3), the front side of the protective shell (1) is rotatably connected with a protective cover (2), the inner wall of the protective cover (2) is fixedly connected with a plug-in block (5), and the inner wall of one side of the protective shell (1) is provided with a closing assembly for closing the protective cover (2) to prevent it from moving. The connecting assembly comprises a connecting block (8) fixedly connected to the top of the circuit breaker body (3), a sliding rod (11) fixedly connected to the inside of the connecting block (8), two clamping blocks (12) slidingly connected to the outside of the sliding rod (11), a spring (13) provided between the two clamping blocks (12), the outer walls of the two clamping blocks (12) being fixedly connected with the two ends of the spring (13), a connecting rod (14) rotatably connected to the outside of the clamping block (12), and a push block (10) rotatably connected to one end of the two connecting rods (14).

2. The multifunctional combination magnetic circuit breaker according to claim 1, characterized in that: The closing assembly comprises a fixed block (7) fixedly connected to the inner wall of the protective shell (1), a limiting groove (16) formed in the inside of the upper and lower ends of the fixed block (7), a spring (17) fixedly connected to the inside of the limiting groove (16), and a movable block (18) fixedly connected to one end of the spring (17).

3. The multifunctional combination magnetic circuit breaker according to claim 2, characterized in that: The outside of the movable block (18) is fixedly connected with a fixed rod (19), one end of the fixed rod (19) extends to the outside of the fixed block (7) and is fixedly connected with a spherical block (20).

4. The multifunctional combination magnetic circuit breaker of claim 1, wherein: The top of the connecting block (8) is provided with a sliding groove (9), and the inner wall of the sliding groove (9) is slidingly connected with the outer wall of the push block (10).

5. The multi-functional combination magnetic circuit breaker of claim 1, wherein: The two clamping blocks (12) are symmetrically arranged, and the clamping block (12) is engaged with the inside of the clamping groove (15).

6. The multi-functional combination magnetic circuit breaker of claim 1, wherein: The spring (13) is sleeved on the outside of the sliding rod (11), and the clamping block (12) is slidingly connected in the inside of the connecting block (8).

7. The multi-functional combination magnetic circuit breaker of claim 3, wherein: The movable block (18) is slidingly connected in the inside of the limiting groove (16), and the outside of the spherical block (20) is slidingly connected with the outside of the plug-in block (5).

8. The multi-functional combination magnetic circuit breaker of claim 1, wherein: The left and right sides of the protective shell (1) are provided with a plurality of heat dissipation holes (21), and the front side of the protective cover (2) is provided with an observation port.

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