Protective shell of circuit breaker

Abstract

The utility model discloses a protective shell of a circuit breaker, which relates to the technical field of protective shells and comprises a shell body, a protective door is arranged on the front surface of the shell body, fixing blocks are fixedly connected above and below the left side and the right side of the shell body, and first mounting holes for fixing bolts are formed in the middles of the front surfaces of the fixing blocks. A mounting assembly is arranged on the rear side of the inner wall of the shell, a slot is formed in the front face of the shell, and the interior and the exterior of the upper surface of the inner wall of the slot are communicated. In the process that the protective door moves downwards, the sliding groove and the first rubber strip extrude each other and contract. And when the protective door moves to a proper position, the protective door closes the shell. And at the moment, the extruded and shrunk rubber strip I has sealing performance. In addition, water in the contact gap between the protective door and the shell can flow out smoothly due to the arrangement of the water collecting tank and the drainage hole. Through the structural design, the circuit breaker can be effectively protected in the shell, the rainproof performance is remarkably improved, and meanwhile, the circuit breaker is simple and convenient to operate and easy to use.

Description

Technical Field

[0001] This utility model relates to the field of protective housing technology, specifically to a protective housing for a circuit breaker. Background Technology

[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 time. Circuit breakers play a vital role in power systems, protecting circuit equipment and personal safety by preventing damage caused by faults such as overloads, short circuits, or leakage. However, circuit breakers require protection through a protective enclosure during installation.

[0003] According to patent publication number CN213340250U, a circuit breaker housing with a protective mechanism addresses the problem that existing circuit breaker housings lack a rainproof mechanism, making them unsuitable for outdoor use. The proposed solution includes a base and an end cap fixedly mounted on one side of the base. A mounting plate is fixedly mounted on the top of the base, and a sleeve plate is fitted onto the mounting plate. A first baffle is fixedly mounted on the top of the sleeve plate. A storage groove is formed on one side of the first baffle, and a second baffle is slidably mounted within the storage groove. A groove is formed at the bottom of the sleeve plate, and the mounting plate engages with the groove. A locking groove is formed on one side of the mounting plate, and a locking plate is slidably mounted on one side of the sleeve plate, engaging with the locking groove on one side. A positioning groove is formed at the bottom of the second baffle. This invention provides a protective mechanism, is easy and quick to install, protects itself, has a simple structure, and is convenient to use.

[0004] The existing technology has the following problems:

[0005] In the aforementioned publication number CN213340250U, the circuit breaker is protected from rain only by the first and second baffles. This results in poor rain protection performance, making it easy for rainwater to intrude into the circuit breaker, thus posing a safety hazard. Utility Model Content

[0006] This utility model provides a protective housing for a circuit breaker to solve the problems mentioned in the background art.

[0007] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0008] A protective housing for a circuit breaker includes a housing with a protective door on the front. Fixing blocks are fixedly connected to the top and bottom of both sides of the housing. A mounting hole for bolt fixing is provided in the center of the front of each fixing block. An installation assembly is provided on the rear side of the inner wall of the housing. A slot is provided on the front of the housing. The upper surface of the inner wall of the slot is open to both the inside and outside. A water collection trough is provided on the lower surface of the inner wall of the slot. Several drainage holes with both the inside and outside are provided on the lower surface of the inner wall of the water collection trough for drainage. Rubber strips are fixedly connected to both sides of the inner wall of the slot. The length of the rubber strips is the same as the depth of the water collection trough and the height of the inner wall of the slot.

[0009] A further improvement of this utility model is that two inclined surfaces are mirror-imagely arranged on the upper front and rear sides of the rubber strip on the left and right sides.

[0010] A further improvement of the present invention is that: the lower surface of the inner wall of the shell is provided with an outwardly inclined slope for drainage, and the upper surface of the slope is provided with a line port for electrical insertion that is open from top to bottom.

[0011] A further improvement of this utility model is that: a protective door is provided on the front top of the protective door, which is open to the front and back for upward movement, and the thickness of the protective door is less than the inner wall depth of the slot.

[0012] A further improvement of this utility model is that: the left and right sides of the protective door are provided with sliding grooves for sliding on the surface of the rubber strip, the width of the sliding groove is less than the thickness of the slot, and the front side of the lower surface of the protective door is fixedly connected with a second rubber strip for waterproofing, the lower surface of the second rubber strip overlaps and abuts against the lower surface of the inner wall of the water collection tank.

[0013] A further improvement of this utility model is that the rubber strips on the left and right sides are in a state of compression and contraction.

[0014] A further improvement of the present invention is that the mounting assembly includes two fixing plates and mounting plates. The upper surfaces of the two mounting plates are provided with through openings on the left and right sides for sliding on the outer surface of the fixing plates. The upper and lower ends of the fixing plates are fixedly connected to the upper and lower sides of the inner wall of the housing. The front sides of the upper and lower fixing plates are provided with several mounting holes, and the front sides of the left and right fixing plates are provided with several circular holes.

[0015] A further improvement of this utility model is that: the mounting plate described above and below has threaded holes on both the left and right sides of its front side, and fixing bolts for threaded connection are provided. The outer surface of the fixing bolts extends into the interior of one of the circular holes for insertion.

[0016] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:

[0017] 1. This utility model provides a protective housing for a circuit breaker, employing a combination of a slot, a water collection trough, a drain hole, a first rubber strip, a first inclined surface, a second inclined surface, a line opening, a protective door, a handle opening, a sliding groove, and a second rubber strip. As the protective door moves downwards, the sliding groove and the first rubber strip compress and contract against each other. When it reaches the appropriate position, the protective door closes the housing. At this point, the compressed and contracted first rubber strip provides a seal. Furthermore, the water collection trough and drain hole allow water to drain smoothly from the gap between the protective door and the housing. Through this structural design, the circuit breaker achieves effective protection within the housing, significantly improving its rainproof performance, while also being simple and easy to operate.

[0018] 2. This utility model provides a protective housing for a circuit breaker, which employs a combination of mounting components, a fixing plate, a mounting plate, two mounting holes, a fixing bolt, and a circular hole. The upper and lower mounting plates slide to accommodate the installation of the circuit breaker. Once slid to the appropriate position, the fixing bolt and the circular hole design secure the circuit breaker in place. This structure facilitates the installation and fixing of circuit breakers of different models and sizes. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the shell structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the protective door structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the installation component structure of this utility model.

[0023] In the diagram: 1. Housing; 11. Mounting assembly; 111. Fixing plate; 112. Mounting plate; 113. Mounting hole 2; 114. Fixing bolt; 115. Circular hole; 12. Slot; 13. Water collection trough; 14. Drain hole; 15. Rubber strip 1; 16. Angled surface 1; 17. Angled surface 2; 18. Wiring port; 2. Protective door; 21. Handle opening; 22. Slide groove; 23. Rubber strip 2; 3. Fixing block; 4. Mounting hole 1. Detailed Implementation

[0024] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0025] like Figures 1 to 4As shown, this utility model provides a protective housing for a circuit breaker:

[0026] The protective housing mainly consists of housing 1, protective door 2, fixing block 3, and installation components 11.

[0027] Shell 1: As the main structure, it is made of high-strength, corrosion-resistant materials, such as metal or synthetic resin. The front of the shell 1 is provided with a slot 12 for installing the protective door 2. The upper surface of the inner wall of the slot 12 is open to the inside and outside, which facilitates the insertion of the protective door 2. The lower surface of the inner wall of the slot 12 is provided with a water collection tank 13 for collecting and guiding dripping water. Several drainage holes 14 are opened on the lower surface of the inner wall of the water collection tank 13 so that the accumulated water can be discharged in time. Rubber strips 15 are fixed on both sides of the inner wall of the slot 12 to enhance the sealing and prevent water from seeping in.

[0028] Protective door 2: A handle 21 is provided on the upper front for easy up-and-down movement of the protective door 2. The thickness of the protective door 2 is less than the depth of the inner wall of the slot 12, allowing it to be smoothly inserted into the slot 12. The left and right sides of the protective door 2 have sliding grooves 22, which slide and engage with the surface of the rubber strip 15 to enhance the sealing effect. A second rubber strip 23 is fixed to the front of the lower surface of the protective door 2, which overlaps and presses against the lower surface of the inner wall of the water collection tank 13 to further prevent water penetration. Fixing block 3: Fixed on the upper and lower sides of the left and right sides of the housing 1. The fixing block 3 has a mounting hole 4 in the center of the front of the fixing block 3, which allows bolts to pass through and be fixed to the wall. Sliding groove 22: The width is less than the thickness of the slot 12, allowing the protective door 2 to fit tightly against the inner wall of the slot. The sliding groove 22 slides and engages with the surface of the rubber strip 15, which facilitates loading and unloading while providing a sealing effect to prevent water from seeping out of the gaps. Infiltration; Rubber strip 23: its lower surface overlaps and presses tightly against the lower surface of the inner wall of the water collection tank 13, forming a second waterproof barrier; Rubber strip 15: its length is the same as the depth of the water collection tank 13 and the height of the inner wall of the slot 12, so that the protective door 2 can fit tightly against the inner wall of the slot 12 to form a waterproof barrier. There are inclined surfaces 16 on the upper front and rear sides of rubber strip 15 to facilitate the smooth sliding of the protective door 2 when it is inserted, and at the same time, it is easier to squeeze rubber strip 15; Inclined surface 17: it is set on the lower surface of the inner wall of the housing 1 and is inclined outward for drainage. There is a wire opening 18 in the middle of the upper surface of inclined surface 17, which facilitates the insertion of wires or other wires into the housing 1 for easy connection of circuit breakers; Drainage hole 14: it is set on the lower surface of the inner wall of the water collection tank 13 so that the accumulated water can be discharged in time to prevent the possibility of water accumulation in the housing 1 from causing electrical failure.

[0029] Mounting assembly 11 includes a fixing plate 111 and a mounting plate 112. The upper and lower ends of the fixing plate 111 are fixedly connected to the upper and lower sides of the inner wall of the housing 1 to form a support structure. The upper surface of the mounting plate 112 has openings on the left and right sides to facilitate sliding of the outer surface of the fixing plate 111. The front of the fixing plate 111 has mounting holes 113 for bolts or other fasteners to pass through and fix the circuit breaker or other equipment. The front of the left and right sides of the fixing plate 111 also has circular holes 115, which cooperate with the threaded holes on the front of the mounting plate 112. The mounting plate is fixed by fixing bolts 114. Fixing bolts 114 are threaded into the threaded holes on the front of the mounting plate 112 and extend into the circular holes 115 to fix the mounting plate 112. The design of fixing bolts 114 facilitates installation and disassembly and allows for adjustment of the upper and lower mounting plates to accommodate circuit breakers of different sizes and models. Mounting holes 113 facilitate the installation and fixing of the circuit breaker by bolts.

[0030] Working principle:

[0031] Install the circuit breaker or other equipment on the mounting assembly 11 and fix it to the mounting hole 113 by bolts or other fasteners. Finally, insert the protective door 2 into the slot 12 and press it down. Through the sliding fit of the slide groove 22 and the rubber strip 15 and the overlapping and pressing of the rubber strip 23, a waterproof seal is formed. When external water drips onto the surface of the housing 1, the water will flow into the water collection tank 13 along the gap between the housing 1 and the lower part of the protective door 2. The water in the water collection tank 13 will be discharged in time through the drain hole 14 to prevent water accumulation inside the housing 1. At the same time, the rubber strip 23 on the lower surface of the protective door 2 overlaps and presses against the lower surface of the inner wall of the water collection tank 13 to form a second waterproof barrier, making the inside of the housing 1 waterproof.

[0032] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A protective housing for a circuit breaker, comprising a housing (1), characterized in that: The front of the housing (1) is provided with a protective door (2). Fixing blocks (3) are fixedly connected to the upper and lower sides of the left and right sides of the housing (1). The fixing block (3) has a mounting hole (4) for bolt fixing in the middle of the front. The rear side of the inner wall of the housing (1) is provided with an installation assembly (11). The front of the housing (1) is provided with a slot (12). The upper surface of the inner wall of the slot (12) is open to the inside and outside. The lower surface of the inner wall of the slot (12) is provided with a water collection tank (13). The lower surface of the inner wall of the water collection tank (13) is provided with several inner and outer openings. A drain hole (14) for general drainage is provided. Rubber strips (15) are fixedly connected to the left and right sides of the inner wall of the slot (12). The length of the rubber strips (15) is the same as the depth of the water collection tank (13) and the height of the inner wall of the slot (12). Two inclined surfaces (16) are mirrored on the upper front and rear sides of the rubber strips (15) on the left and right sides. An inclined surface (17) for drainage is provided on the lower surface of the inner wall of the housing (1). An electrical insertion port (18) for electrical insertion is opened in the middle of the upper surface of the inclined surface (17). A protective door (2) is provided on the front top of the protective door (2), which is open from front to back and is used for upward movement. The thickness of the protective door (2) is less than the inner wall depth of the slot (12). The left and right sides of the protective door (2) are provided with sliding grooves (22) for sliding on the surface of the first rubber strip (15). The width of the sliding groove (22) is less than the thickness of the slot (12). A second rubber strip (23) for waterproofing is fixedly connected to the front side of the lower surface of the protective door (2). The lower surface of the second rubber strip (23) overlaps and abuts against the lower surface of the inner wall of the water collection tank (13). The rubber strips on the left and right sides are... When the first (15) is in a compressed state, the mounting assembly (11) includes two fixing plates (111) and mounting plates (112). The upper surfaces of the two mounting plates (112) are provided with openings on the left and right sides for sliding of the outer surface of the fixing plate (111). The upper and lower ends of the fixing plate (111) are fixedly connected to the upper and lower sides of the inner wall of the shell (1). The front of the upper and lower fixing plates (111) is provided with several mounting holes (113), and the front of the left and right fixing plates (111) is provided with several circular holes (115).

2. The protective housing of a circuit breaker according to claim 1, characterized in that: The mounting plate (112) above and below has threaded holes on both the left and right sides of the front side, and a fixing bolt (114) for threaded connection. The outer surface of the fixing bolt (114) extends into the interior of one of the circular holes (115) for insertion.

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