Circuit breaker with dustproof function

Abstract

The utility model relates to the field of circuit breakers with a dustproof function, and discloses a circuit breaker with a dustproof function, which comprises a protection box, a dustproof net is sleeved on the inner wall of the rear end of the protection box in a threaded manner, two fixed connecting blocks are fixedly arranged on the front end surface of the dustproof net, and a drying box is fixedly arranged on the inner top surface of the protection box. A placing frame is fixedly arranged on the inner bottom face of the protection box, the protection box comprises a bottom plate and second fixing screws, and the placing frame comprises two fixing plates. According to the utility model, the dustproof net fixed on the inner wall of the rear end of the protection box can filter air entering the protection box to prevent dust from entering the main body, and the fixed connecting block fixed on the front end surface of the dustproof net is convenient for fixing the dustproof net in the protection box, so that the dustproof net is convenient to disassemble when being damaged, and the maintenance is convenient. And a drying agent can be placed in the drying box fixed on the top surface in the protection box, so that internal air can be kept dry.

Description

Technical Field

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

[0002] When the circuit breaker is in use, when the current in the circuit exceeds the set value, the circuit breaker will automatically cut off the current to prevent circuit components from being damaged due to overheating. When a short circuit occurs in the circuit, the circuit breaker can quickly cut off the current to prevent the circuit and equipment from being subjected to excessive current shocks. When repairing the circuit, the circuit breaker can cut off the circuit to ensure that personnel will not be harmed by the current when repairing and servicing electrical equipment.

[0003] When the existing circuit breaker is in use, dust will enter the inside of the circuit breaker and accumulate on the switch components and contacts, thereby affecting the switching speed. Due to the accumulation of dust, the gap between the contacts and the bracket will become smaller, increasing the contact resistance, thereby causing the switching speed to slow down, and even causing problems such as jamming and failure.

[0004] Therefore, the utility model provides a circuit breaker with a dustproof function to solve the problems raised in the above background technology. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings existing in the prior art, and a circuit breaker with a dustproof function is proposed. The first fixing screw can fix the protection box and the fixing frame, which is convenient for disassembly and replacement when the fixing frame is damaged and the wire rack needs to be replaced. The power-off module fixed on the upper end of the placement frame can cut off the current when the circuit current is overloaded to prevent the circuit components from being damaged due to overheating. The wire rack can fix the wires so that the wires can be neatly placed at the rear end of the protection box.

[0006] To achieve the above object, the utility model provides the following technical solution: a circuit breaker with dustproof function, comprising a protection box, a dustproof net is provided on the threaded sleeve of the inner wall at the rear end of the protection box, two fixed connection blocks are fixedly provided on the front end surface of the dustproof net, and a drying box is fixedly provided on the top surface of the protection box;

[0007] A placement rack is fixedly arranged on the bottom surface of the protection box, the protection box includes a bottom plate and a second fixing screw, the placement rack includes two fixing plates, the upper ends of both sides of the two fixing plates are threadedly connected with a reinforcement upper cover, and sliding partitions are slidably arranged in the middle of both sides of the two fixing plates;

[0008] Through the above technical scheme, the dust-proof net fixed on the inner wall at the rear end of the protection box can filter the air entering the protection box to prevent dust from entering the interior of the main body. The fixed connecting block fixed on the front end surface of the dust-proof net facilitates the fixing of the dust-proof net inside the protection box, and it is convenient to disassemble the dust-proof net when it is damaged. The drying box fixed on the top surface of the protection box can be used to place desiccant inside to keep the internal air dry. The placement rack fixed on the bottom surface of the protection box can fix the power-off module so that the power-off module will not move inside the protection box when in use. The main structure of the protection box includes a bottom plate, which can fix the protective plates on both sides so that the protective plates can be connected to the fixed upper cover. The main structure of the placement rack includes a fixed plate, which plays a supporting role and can form a placement rack with the sliding partition and the reinforced upper cover. The power-off module can be fixed on the upper end surface of the sliding partition, and the sliding partition can slide to facilitate the removal of the power-off module fixed at the upper end, so that it is convenient to replace the power-off module when it needs to be replaced.

[0009] Furthermore, handles are fixedly provided on the upper ends of both sides of the protection box, and a cabinet door is hingedly provided on the front end surface of the protection box;

[0010] Through the above technical solution, the handles fixed on both sides of the protection box can drive the entire structure to move, and the cabinet door fixed on the front end of the protection box is convenient for opening the interior of the protection box. When problems occur with internal parts, it is convenient to open the cabinet door to repair the internal parts.

[0011] Furthermore, the rear end surface thread sleeve of the protection box is provided with a fixing bracket, and the rear end surface thread sleeve of the fixing bracket is provided with four first fixing screws;

[0012] Through the above technical solution, the fixing frame fixed at the rear end of the protection box can fix the wire rack so that the wire rack can be fixed at the rear end of the protection box. The first fixing screw can fix the protective box and the fixing frame, which is convenient for disassembly and replacement when the fixing frame is damaged and the wire rack needs to be replaced.

[0013] Furthermore, four power-off modules are fixedly arranged inside the placement rack, and a plurality of cable racks are fixedly arranged on the rear end surface of the protection box;

[0014] Through the above technical solution, the power-off module fixed on the upper end of the placement rack can cut off the current when the circuit current is overloaded, preventing the circuit components from being damaged due to overheating. The wire rack can fix the wires so that the wires can be neatly placed at the rear end of the protection box and connected to the internal power-off module.

[0015] Furthermore, two protective plates are threadedly sleeved on both sides of the bottom plate, and a fixed upper cover is threadedly connected to the upper end of one side of the two protective plates;

[0016] Through the above technical solution, the protection plates fixed on both sides of the bottom plate can prevent the internal parts from being damaged by impact, and the fixed upper cover fixed on the upper end of the protection plate can prevent objects from hitting the internal parts from the upper end, causing damage to the internal parts.

[0017] Furthermore, a plurality of air inlet holes are provided on the rear end surface of the fixed upper cover, and a plurality of second fixing screws are threadedly sleeved on one side of the two protection plates;

[0018] Through the above technical solution, the air inlet hole at the rear end of the fixed upper cover can allow external air to enter the interior of the main body, and the air inlet hole is connected to the dustproof net so that dust in the air can be filtered. The multiple second fixing screws fixed on one side of the protective plate can connect the fixed upper cover and the protective plate, and can also connect the protective plate and the base, so that the entire structure can be easily disassembled.

[0019] Furthermore, a plurality of second connecting screws are threadedly sleeved on one side of the two fixing plates, and a first connecting screw is threadedly sleeved on the upper part of the front end surface of the two fixing plates;

[0020] Through the above technical solution, the second connecting screws on one side of the two fixing plates can fix the entire placement rack and the inner walls on both sides of the protection box, so that the placement rack can be firmly fixed inside the protection box, and the first connecting screws can connect the reinforced cover and the fixing plate. When different power-off modules are installed inside, different reinforced covers can be conveniently replaced to fix the power-off modules.

[0021] The utility model has the following beneficial effects:

[0022] 1. The utility model proposes a circuit breaker with dustproof function. The main structure of the protection box includes a bottom plate and a second fixing screw. A plurality of second fixing screws fixed on one side of the protection plate can connect the fixed upper cover and the protection plate, and can also connect the protection plate and the base, so that the whole structure can be easily disassembled. The dustproof net fixed on the inner wall of the rear end of the protection box can filter the air entering the protection box to prevent dust from entering the inside of the main body. The fixed connecting block fixed on the front end of the dustproof net can conveniently fix the dustproof net inside the protection box, and it is convenient to disassemble the dustproof net when it is damaged. The drying box fixed on the top surface of the protection box can be used to place desiccant inside to keep the internal air dry.

[0023] 2. The utility model proposes a circuit breaker with dustproof function, the main structure of the placement rack includes a fixed plate, the fixed plate and the protection box are fixed, the fixed plate can form a placement rack with a sliding partition and a reinforced upper cover, the power-off module can be fixed on the upper end surface of the sliding partition, the sliding partition can be slid to facilitate the removal of the power-off module fixed on the upper end, and when different power-off modules are placed inside the placement rack, different fixed plates and reinforced upper covers can be replaced to fix different power-off modules, so that the protection box can protect different power-off modules to prevent dust from affecting the circuit breaker. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the main visual axis side of the utility model;

[0025] Figure 2 It is a rear-view axle side schematic diagram of the utility model;

[0026] Figure 3 It is a schematic diagram of the main visual axis side of the structure of the storage box of the utility model;

[0027] Figure 4 It is a bottom-view axial side schematic diagram of the structure of the safety deposit box of the utility model.

[0028] Legend:

[0029] 1. Protection box; 2. Cabinet door; 3. Handle; 4. Placement rack; 5. Fixed rack; 6. Cable rack; 7. First fixing screw; 8. Power off module; 9. Drying box; 10. Dust net; 11. Fixed connection block; 101. Bottom plate; 102. Air inlet; 103. Fixed top cover; 104. Second fixing screw; 105. Protection plate; 401. Fixed plate; 402. First connecting screw; 403. Reinforced top cover; 404. Second connecting screw; 405. Sliding partition. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] Reference Figure 1-4 The utility model provides an embodiment: a circuit breaker with dustproof function, comprising a protection box 1, a dustproof net 10 is provided on the inner wall of the rear end of the protection box 1, two fixed connection blocks 11 are fixedly provided on the front end surface of the dustproof net 10, and a drying box 9 is fixedly provided on the top surface of the protection box 1;

[0032] A placement rack 4 is fixedly arranged on the bottom surface of the protection box 1. The protection box 1 includes a bottom plate 101 and a second fixing screw 104. The placement rack 4 includes two fixing plates 401. The upper ends of the two fixing plates 401 are threadedly connected with reinforced upper covers 403. Sliding partitions 405 are slidably arranged in the middle of the two sides of the two fixing plates 401.

[0033] The dustproof net 10 fixed on the inner wall of the rear end of the protection box 1 can filter the air entering the protection box 1 to prevent dust from entering the interior of the main body. The fixed connection block 11 fixed on the front end of the dustproof net 10 is convenient for fixing the dustproof net 10 inside the protection box 1, and it is convenient to remove the dustproof net 10 when it is damaged. The drying box 9 fixed on the top surface of the protection box 1 can be used to place desiccant inside to keep the internal air dry. The placement rack 4 fixed on the bottom surface of the protection box 1 can fix the power-off module 8, so that the power-off module 8 will not be in the protection box 1 when in use. The main structure of the protection box 1 includes a bottom plate 101, which can fix the protection plates 105 on both sides so that the protection plates 105 can be connected to the fixed upper cover 103. The main structure of the placement rack 4 includes a fixed plate 401, which plays a supporting role and can form a placement rack 4 with a sliding partition 405 and a reinforced upper cover 403. The power-off module 8 can be fixed on the upper end surface of the sliding partition 405, and the sliding partition 405 can slide to facilitate the removal of the power-off module 8 fixed on the upper end, so as to facilitate the replacement of different power-off modules 8.

[0034] Reference Figure 1 A handle 3 is fixedly provided on the upper ends of both sides of the protection box 1, a cabinet door 2 is hingedly provided on the front end surface of the protection box 1, a fixing frame 5 is threadedly provided on the rear end surface of the protection box 1, and four first fixing screws 7 are threadedly provided on the rear end surface of the fixing frame 5, four power-off modules 8 are fixedly provided inside the placement frame 4, and a plurality of cable racks 6 are fixedly provided on the rear end surface of the protection box 1.

[0035] The handles 3 fixed on both sides of the protection box 1 allow the staff to move the entire structure. The cabinet door 2 fixed on the front face of the protection box 1 is convenient for opening the interior of the protection box 1. When there is a problem with the internal parts, it is convenient to open the cabinet door 2 to repair the internal parts. The fixing frame 5 fixed at the rear end of the protection box 1 can fix the wire rack 6 so that the wire rack 6 can be fixed at the rear end of the protection box 1. The first fixing screw 7 can fix the protection box 1 and the fixing frame 5. When the fixing frame 5 is damaged and the wire rack 6 needs to be replaced, it is convenient to disassemble and replace it. The power-off module 8 fixed on the upper end of the placement frame 4 can cut off the current when the circuit current is overloaded to prevent the circuit components from being damaged due to overheating. The wire rack 6 can fix the wires so that the wires can be neatly placed at the rear end of the protection box 1 and connected to the internal power-off module 8.

[0036] Reference Figure 2 Two protective plates 105 are threadedly sleeved on both sides of the bottom plate 101, and a fixed upper cover 103 is threadedly connected to the upper end of one side of the two protective plates 105. A plurality of air inlet holes 102 are opened on the rear end surface of the fixed upper cover 103, and a plurality of second fixing screws 104 are threadedly sleeved on one side of the two protective plates 105.

[0037] The protective plates 105 fixed on both sides of the bottom plate 101 can prevent the internal parts from being damaged by impact. The fixed cover 103 fixed on the upper end of the protective plate 105 can prevent objects from hitting the internal parts from the upper end and causing damage to the internal parts. The air inlet 102 at the rear end of the fixed cover 103 can allow external air to enter the interior of the main body. The air inlet 102 is connected to the dustproof net 10 to filter the dust in the air. The multiple second fixing screws 104 fixed on one side of the protective plate 105 can connect the fixed cover 103 and the protective plate 105, and can also connect the protective plate 105 and the bottom plate 101, so that the entire structure is easy to disassemble.

[0038] Reference Figure 3 A plurality of second connection screws 404 are threadedly sleeved on one side of the two fixing plates 401 , and a first connection screw 402 is threadedly sleeved on the upper part of the front end surface of the two fixing plates 401 .

[0039] The second connecting screws 404 on one side of the two fixing plates 401 can fix the entire placement rack 4 and the inner walls on both sides of the protection box 1, so that the placement rack 4 can be firmly fixed inside the protection box 1. The first connecting screws 402 can connect the reinforced cover 403 and the fixing plate 401. When different power-off modules 8 are installed inside, different reinforced covers 403 can be conveniently replaced to fix the power-off modules 8.

[0040] Working principle: The handles 3 fixed on both sides of the protection box 1 allow the staff to move the entire structure. The cabinet door 2 fixed on the front face of the protection box 1 is convenient for opening the interior of the protection box 1. The fixing frame 5 fixed at the rear end of the protection box 1 can fix the wire rack 6 so that the wire rack 6 can be fixed at the rear end of the protection box 1. The power-off module 8 fixed on the upper end of the placement frame 4 can cut off the current when the circuit current is overloaded to prevent the circuit components from being damaged due to overheating. The wire rack 6 can fix the wires so that the wires can be neatly placed at the rear end of the protection box 1 and connected to the internal power-off module 8.

[0041] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A circuit breaker with dustproof function, comprising a protection box (1), characterized in that: A dust screen (10) is threadedly sleeved on the inner wall of the rear end of the protection box (1), two fixed connection blocks (11) are fixedly arranged on the front end surface of the dust screen (10), and a drying box (9) is fixedly arranged on the inner top surface of the protection box (1); A placement rack (4) is fixedly arranged on the inner bottom surface of the protection box (1), the protection box (1) comprises a bottom plate (101) and a second fixing screw (104), the placement rack (4) comprises two fixing plates (401), the upper ends of both sides of the two fixing plates (401) are threadedly connected with a reinforcing upper cover (403), and sliding partitions (405) are slidably arranged in the middle of both sides of the two fixing plates (401).

2. A circuit breaker with dustproof function according to claim 1, characterized in that: Handles (3) are fixedly provided at the upper ends of both sides of the protection box (1), and a cabinet door (2) is hingedly provided on the front end surface of the protection box (1).

3. A circuit breaker with dustproof function according to claim 1, characterized in that: The rear end surface of the protection box (1) is provided with a fixing frame (5) on the threaded sleeve, and the rear end surface of the fixing frame (5) is provided with four first fixing screws (7) on the threaded sleeve.

4. A circuit breaker with dustproof function according to claim 1, characterized in that: Four power-off modules (8) are fixedly arranged inside the placement rack (4), and a plurality of cable racks (6) are fixedly arranged on the rear end surface of the protection box (1).

5. A circuit breaker with dustproof function according to claim 1, characterized in that: Two protective plates (105) are threadedly sleeved on both sides of the bottom plate (101), and a fixed upper cover (103) is threadedly connected to the upper ends of one side of the two protective plates (105).

6. A circuit breaker with dustproof function according to claim 5, characterized in that: The rear end surface of the fixed upper cover (103) is provided with a plurality of air inlet holes (102), and one side of the two protection plates (105) is threadedly sleeved with a plurality of second fixing screws (104).

7. A circuit breaker with dustproof function according to claim 1, characterized in that: A plurality of second connection screws (404) are threadedly sleeved on one side of the two fixing plates (401), and a first connection screw (402) is threadedly sleeved on the upper portion of the front end surface of the two fixing plates (401).

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