Multifunctional circuit breaker

Abstract

The utility model relates to the field of circuit breakers, and discloses a multifunctional circuit breaker, which comprises a circuit breaker main body structure, a water plugging structure and a dismounting structure, and is characterized in that the circuit breaker main body structure comprises a first shell, a second shell and a mounting plate. Water is blocked through the first layer of the step, the area where the water enters is reduced, then the water makes contact with first expansion rubber in the material groove, the first expansion rubber starts to expand when encountering water and blocks the water, and when the water continues to permeate inwards, the water makes contact with second expansion rubber arranged between the first shell and the second shell, so that the water enters the material groove. The second expansion rubber expands when encountering water, the purposes of sealing and water plugging are achieved for the interior of the circuit breaker, the waterproof effect of the multifunctional circuit breaker is achieved through the three-layer water plugging effect, and normal use of an internal circuit of the multifunctional circuit breaker is guaranteed.

Description

Technical Field

[0001] The utility model relates to the field of circuit breakers, in particular to a multifunctional circuit breaker. Background Art

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

[0003] In the "Multifunctional Circuit Breaker" disclosed in the patent application No. CN202022802082.5, the problems of the existing circuit breaker without an alarm function, unable to remind the staff to deal with it in time after a circuit break, resulting in potential safety hazards, and the existing circuit breaker without a cooling function, generating heat after working for a period of time, and being prone to damage under high temperature conditions are solved. However, the circuit breaker in this application does not have relevant wires and a waterproof structure for the circuit breaker. In practice, when the circuit breaker is in a humid environment, water droplets are likely to form on the wires and flow into the circuit breaker along the wires, resulting in problems such as short circuit or open circuit, affecting the safety of the circuit; at the same time, the circuit breaker is usually fixedly installed on the wall or equipment through several fixing bolts for use, and this installation method is relatively cumbersome. When it is necessary to disassemble and repair the circuit breaker, the operation process is more troublesome, affecting the maintenance efficiency of the circuit breaker. Summary of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the utility model provides a multifunctional circuit breaker, which solves the problems that the circuit breaker is prone to water ingress when working in a humid environment and is time-consuming and laborious during disassembly and assembly.

[0005] To achieve the above objectives, the utility model is realized through the following technical solutions: A multifunctional circuit breaker includes a circuit breaker main structure, a water-blocking structure, and a disassembly and assembly structure. The circuit breaker main structure includes a first outer shell, a second outer shell, and a mounting plate. The first outer shell is installed on one side surface of the second outer shell. A handle is installed on the side surface of the first outer shell away from the second outer shell. An audible and visual alarm is installed on the upper surface of the first outer shell. The mounting plate is installed on the side of the second outer shell away from the first outer shell. The water-blocking structure includes a step, a first expansion rubber, and a second expansion rubber. Wiring ports are provided on the upper and lower surfaces of the first outer shell. A step is provided on the inner surface of the wiring port. A material groove is provided at the lower end of the step. The first expansion rubber is provided in the material groove. A second expansion rubber is provided at the connection between the inner surface of the first outer shell and the second outer shell;

[0006] The disassembly and assembly structure includes a connection block, a fixed buckle, and a sliding buckle. The connection block is fixedly connected to one side surface of the second housing. One end of one side surface of the connection block is fixedly connected to the fixed buckle. A sliding groove is opened at the other end of one side surface of the connection block. A sliding buckle is slidably connected inside the sliding groove. A spring structure is provided between the sliding buckle and the inner wall of the sliding groove. One end inside the connection block is provided with a threaded rod. One end of the axis of the threaded rod is fixedly connected to one side surface of the sliding buckle. A nut is provided on the surface of the threaded rod.

[0007] Preferably, a card slot is opened in the middle part of the side surface of the mounting plate close to the connection block.

[0008] Preferably, both the fixed buckle and the sliding buckle are snap-fitted inside the card slot.

[0009] Preferably, the threaded rod is slidably connected inside the connection block.

[0010] Preferably, the nut is threadedly connected to one end of the surface of the threaded rod.

[0011] Preferably, mounting screw holes are opened at the four corners of the surface of the mounting plate. The mounting plate is fixedly connected to the equipment or wall surface through the mounting screw holes and mounting bolts.

[0012] Preferably, the first housing and the second housing are fixedly connected to each other through fixing screws.

[0013] Preferably, a plurality of heat dissipation plates are installed at one corner of the lower surface of the second housing.

[0014] Beneficial effects

[0015] The present utility model provides a multifunctional circuit breaker. Compared with the prior art, the following

[0016] Beneficial effects are as follows:

[0017] 1. In the present utility model, through the first expansion rubber and the second expansion rubber provided, when the circuit breaker operates in a humid environment, when moisture flows along the wire to the wiring port, the moisture is blocked by the first layer of the step, reducing the area of moisture entry. Subsequently, the moisture contacts the first expansion rubber inside the material groove, and the first expansion rubber starts to expand when encountering water and blocks the moisture. When the moisture continues to penetrate inward, the moisture contacts the second expansion rubber provided between the first housing and the second housing. The second expansion rubber expands when encountering water, achieving the purpose of sealing and blocking water for the inside of the circuit breaker. Through the effect of triple water blocking, the waterproof effect of the multifunctional circuit breaker is realized, ensuring the normal use of the internal circuit of the multifunctional circuit breaker;

[0018] 2. In the present utility model, through the provided disassembly and assembly structure, when the multifunctional circuit breaker needs to be removed for maintenance, rotate the nut in the forward direction to remove the nut from the surface of the threaded rod. Subsequently, due to the reset effect of the spring structure, the sliding buckle is pushed out towards the direction of the fixed buckle, and the acting force between the fixed buckle and the sliding buckle is lost. The circuit breaker can be directly removed from the surface of the mounting plate, greatly facilitating the disassembly process of the circuit breaker. When the circuit breaker needs to be installed after maintenance, the fixed buckle is stuck on one side inside the card slot, and the sliding buckle on the other side is stuck on the other side inside the card slot. Rotate the nut in the reverse direction, and the nut drives the threaded rod to slide towards the outside of the connecting block. The threaded rod also pulls the middle sliding buckle towards the outside of the connecting block. Through the acting force between the sliding buckle and the fixed buckle, the circuit breaker is clamped on the surface of the mounting plate, realizing the installation of the circuit breaker, and making the installation process of the multifunctional circuit breaker relatively convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is an axonometric view of a multifunctional circuit breaker proposed by the present utility model;

[0020] Figure 2 is a multifunctional circuit breaker proposed by the present utility model Figure 1 enlarged view of part A;

[0021] Figure 3 is a three-dimensional schematic diagram of the first housing of a multifunctional circuit breaker proposed by the present utility model;

[0022] Figure 4 is a three-dimensional schematic diagram of the rear side of a multifunctional circuit breaker proposed by the present utility model;

[0023] Figure 5 is a three-dimensional schematic diagram of the mounting plate of a multifunctional circuit breaker proposed by the present utility model.

[0024] Legend:

[0025] 1. Circuit breaker main structure; 101. First housing; 102. Second housing; 103. Mounting plate; 104. Handle; 2. Mounting screw holes; 3. Mounting bolts; 4. Wiring ports; 5. Water blocking structure; 501. Step; 502. Material groove; 503. First expansion rubber; 504. Second expansion rubber; 6. Disassembly and assembly structure; 601. Connecting block; 602. Fixed buckle; 603. Sliding groove; 604. Sliding buckle; 605. Card slot; 606. Threaded rod; 607. Nut; 608. Spring structure; 7. Heat dissipation plate; 8. Acousto-optic alarm. DETAILED DESCRIPTION OF THE 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 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] Please refer to Figures 1-5 , the present utility model provides two technical solutions, specifically including the following embodiments:

[0028] Embodiment 1:

[0029] A multifunctional circuit breaker includes a circuit breaker main structure 1, a water-blocking structure 5, and a disassembly and assembly structure 6. The circuit breaker main structure 1 includes a first outer shell 101, a second outer shell 102, and a mounting plate 103. The first outer shell 101 is installed on one side surface of the second outer shell 102. A handle 104 is installed on the side surface of the first outer shell 101 away from the second outer shell 102. An audible and visual alarm 8 is installed on the upper surface of the first outer shell 101. The mounting plate 103 is installed on the side of the second outer shell 102 away from the first outer shell 101. The water-blocking structure 5 includes a step 501, a first expansion rubber 503, and a second expansion rubber 504. Wiring ports 4 are opened on both the upper and lower surfaces of the first outer shell 101. A step 501 is provided on the inner surface of the wiring port 4. A material groove 502 is opened at the lower end of the step 501. The first expansion rubber 503 is arranged inside the material groove 502. A second expansion rubber 504 is arranged at the connection between the inner surface of the first outer shell 101 and the second outer shell 102. The expansion mechanism of the expansion rubber is mainly that hydrophilic substances (such as water-absorbing resin) form a strong affinity with the hydrophilic groups in the rubber matrix, so that the rubber absorbs water and expands. When the expansion ratio reaches a certain level, the rubber material will generate sufficient pressure to block the water inlet position. Mounting screw holes 2 are opened at the four corners of the surface of the mounting plate 103. The mounting plate 103 is fixedly connected to the equipment or wall surface through the mounting screw holes 2 and mounting bolts 3. The first outer shell 101 and the second outer shell 102 are fixedly connected to each other through fixing screws. A plurality of heat dissipation plates 7 are installed at one corner of the lower surface of the second outer shell 102, which is convenient for heat dissipation treatment of the internal circuit during the operation of the multifunctional circuit breaker to ensure the normal operation of the internal circuit.

[0030] During operation, after fixing the mounting plate 103 to the wall or equipment through the mounting bolts 3, the multi-functional circuit breaker is mounted on the mounting plate 103 through the disassembly and assembly structure 6. During normal use, the circuit is connected to the internal circuit of the multi-functional circuit breaker through the wiring port 4. When the circuit connected by the circuit breaker operates normally, the moving contact and the static contact inside the multi-functional circuit breaker are closed to form a circuit; when a circuit fault occurs, the moving contact and the static contact are disconnected to cut off the power supply, and the handle 104 is driven to rotate downward. When the handle 104 rotates downward, the acoustic-optic alarm 8 is triggered, and the acoustic-optic alarm 8 lights up and sounds an alarm, reminding the staff that the circuit has a fault and needs to be repaired. After the circuit fault is restored, the handle 104 is manually pulled upward to connect the power supply to the multi-functional circuit breaker, and the acoustic-optic alarm 8 is powered off to stop the alarm. When the multi-functional circuit breaker operates in a humid environment and moisture is about to enter the wiring port 4 along the wire, primary water blocking is carried out by the blockage of the step 501. When the moisture continues to seep into the wiring port 4, the first expansion rubber 503 inside the material groove 502 comes into contact with the moisture, and the first expansion rubber 503 expands rapidly after contacting the moisture to carry out secondary water blocking. When moisture continues to seep inward after long-term use, the moisture will contact the second expansion rubber 504 installed between the first housing 101 and the second housing 102, and the second expansion rubber 504 expands when encountering water to achieve tertiary water blocking. The waterproof function of the multi-functional circuit breaker is realized through tertiary water blocking, making the circuit connected by the multi-functional circuit breaker safer.

[0031] Embodiment 2:

[0032] On the basis of the first embodiment, the disassembly and assembly structure 6 includes a connecting block 601, a fixed buckle 602 and a sliding buckle 604. The connecting block 601 is fixedly connected to a side surface of the second housing 102. One end of the side surface of the connecting block 601 is fixedly connected to the fixed buckle 602. A sliding groove 603 is provided at the other end of the side surface of the connecting block 601. The sliding buckle 604 is slidably connected inside the sliding groove 603. A spring structure 608 is provided between the sliding buckle 604 and the inner wall of the sliding groove 603. A threaded rod 606 is provided at one end of the inner part of the connecting block 601. One end of the threaded rod 606 is axially fixedly connected to a side surface of the sliding buckle 604. The threaded rod 606 rotates on the side surface of the sliding buckle 604, but The surface of the sliding buckle 604 will not be separated, and a nut 607 is provided on the surface of the threaded rod 606. A slot 605 is provided in the middle part of the surface of one side of the mounting plate 103 close to the connecting block 601. The fixed buckle 602 and the sliding buckle 604 are both engaged and connected inside the slot 605. The threaded rod 606 is slidably connected inside the connecting block 601. The nut 607 is threadedly connected to one end of the surface of the threaded rod 606. The nut 607 can be rotated forward or backward to make the threaded rod 606 slide left and right inside the connecting block 601, thereby driving the sliding buckle 604 to slide left and right. The installation and removal of the multifunctional circuit breaker can be realized by sliding the fixed buckle 602 and the sliding buckle 604 to both ends or to the middle.

[0033] When a fault occurs inside the multifunctional circuit breaker and needs to be repaired, the nut 607 is rotated to remove the nut 607 from the surface of the threaded rod 606. At this time, the sliding buckle 604 loses the obstruction of the nut 607 and is exerted with a reset force by the spring structure 608 to slide toward the direction of the fixed buckle 602. The distance between the fixed buckle 602 and the sliding buckle 604 is shortened. When the card slot 605 is not enough to realize the locking function, the multifunctional circuit breaker can be directly removed from the surface of the mounting plate 103, realizing the disassembly of the multifunctional circuit breaker. It is very convenient and quick to use. When the maintenance is completed, the multifunctional circuit breaker can be installed When the multifunctional circuit breaker is installed, the fixing buckle 602 is first locked on one side of the inner part of the slot 605, the sliding buckle 604 is locked on the other side of the inner part of the slot 605, the nut 607 is threadedly connected to the surface of the threaded rod 606, and the nut 607 is continuously rotated to make the threaded rod 606 slowly slide out from the inside of the connecting block 601, driving the sliding buckle 604 to apply force toward both ends to the inner side of the slot 605, until the sliding buckle 604 slides to the limit in the slot 605, and then the multifunctional circuit breaker is released, the circuit breaker will not fall, and the installation of the multifunctional circuit breaker can be completed, which greatly facilitates the installation process of the multifunctional circuit breaker.

Claims

1. A multifunctional circuit breaker, comprising a circuit breaker main structure (1), a water blocking structure (5) and a disassembly structure (6), characterized in that: The circuit breaker main structure (1) comprises a first housing (101), a second housing (102) and a mounting plate (103); the first housing (101) is mounted on a side surface of the second housing (102); a handle (104) is mounted on a side surface of the first housing (101) away from the second housing (102); an audible and visual alarm (8) is mounted on the upper surface of the first housing (101); the mounting plate (103) is mounted on a side of the second housing (102) away from the first housing (101); and the water blocking structure (5) The invention comprises a step (501), a first expansion rubber (503) and a second expansion rubber (504); the upper and lower surfaces of the first shell (101) are both provided with a wiring port (4); the inner surface of the wiring port (4) is provided with a step (501); the lower end of the step (501) is provided with a material groove (502); the interior of the material groove (502) is provided with the first expansion rubber (503); the inner surface of the first shell (101) and the connection between the second shell (102) and the second expansion rubber (504); The disassembly and assembly structure (6) comprises a connection block (601), a fixed buckle (602) and a sliding buckle (604); the connection block (601) is fixedly connected to a side surface of the second housing (102); one end of the side surface of the connection block (601) is fixedly connected to the fixed buckle (602); the other end of the side surface of the connection block (601) is provided with a sliding groove (603); the interior of the sliding groove (603) is slidably connected to the sliding buckle (604); a spring structure (608) is provided between the sliding buckle (604) and the inner wall of the sliding groove (603); a threaded rod (606) is provided at one end of the interior of the connection block (601); one end of the threaded rod (606) is fixedly connected to a side surface of the sliding buckle (604) by its axis; a nut (607) is provided on the surface of the threaded rod (606).

2. A multifunctional circuit breaker according to claim 1, characterized in that: A slot (605) is provided in the middle of a surface of one side of the mounting plate (103) close to the connecting block (601).

3. A multifunctional circuit breaker according to claim 1, characterized in that: The fixed buckle (602) and the sliding buckle (604) are both snap-fitted and connected inside the slot (605).

4. A multifunctional circuit breaker according to claim 1, characterized in that: The threaded rod (606) is slidably connected inside the connecting block (601).

5. A multifunctional circuit breaker according to claim 1, characterized in that: The nut (607) is threadedly connected to one end of the surface of the threaded rod (606).

6. A multifunctional circuit breaker according to claim 1, characterized in that: The four corners of the surface of the mounting plate (103) are provided with mounting screw holes (2), and the mounting plate (103) is fixedly connected to the equipment or the wall through the mounting screw holes (2) and the mounting bolts (3).

7. A multifunctional circuit breaker according to claim 1, characterized in that: The first housing (101) and the second housing (102) are fixedly connected to each other via fixing screws.

8. A multifunctional circuit breaker according to claim 1, characterized in that: A plurality of heat dissipation plates (7) are installed at a corner of the lower surface of the second housing (102).

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