Anti-mis-touch AC circuit breaker in a cabinet

Abstract

The utility model relates to circuit breaker technical field especially relates to a prevent mistaken touch's in -cabinet ac circuit breaker, including circuit breaker body, protective housing, baffle and switch, the inside of protective housing is provided with circuit breaker body, baffle is hinged in the front side of protective housing, the front side of circuit breaker body is provided with the sliding slot, the inside sliding connection of sliding slot has the sliding block, the front side of sliding block is inclined plane structure, the front side fixed mounting of sliding block has the limit stop, the side fixed mounting of sliding block has the spring, the inside fixed mounting of baffle has the pressure rod, and the inclined plane structure of pressure rod and sliding block correspond each other, when opening baffle and overhauling, the utility model promotes sliding block to slide along the sliding slot through spring, promotes the limit stop to the periphery of switch, carries out the limit locking to switch, prevents mistaken touch switch, causes the safety accident, closes baffle when overhauling is completed, and the cambered surface of pressure rod contacts sliding block, will promote sliding block sliding compression spring, makes the limit stop leave the periphery of circuit breaker body switch, and automatically unlocks switch.

Description

Technical Field

[0001] This utility model relates to the field of circuit breaker technology, and in particular to an AC circuit breaker in a cabinet that prevents accidental activation. Background Technology

[0002] A circuit breaker is a switching device that can close, carry, and interrupt current under normal circuit conditions and close, carry, and interrupt current under abnormal circuit conditions within a specified time. Circuit breakers also need to be installed in distribution cabinets so that the circuit can be cut off in time when overload, short circuit, or other faults occur, thereby improving electrical safety.

[0003] The electrical components and equipment inside the distribution cabinet are densely packed. When performing maintenance and repairs inside the cabinet, operators are prone to accidentally touching the circuit breaker, causing it to close or open, which poses a certain safety hazard. Currently, there are circuit breakers that can be manually locked to prevent accidental contact during maintenance. However, the circuit breaker cannot be automatically unlocked after maintenance is completed. If the operator forgets to unlock the circuit breaker, it will affect the circuit breaker's normal circuit disconnection, which is not safe enough.

[0004] Therefore, to address the above issues, a cabinet-mounted AC circuit breaker designed to prevent accidental activation can be implemented. This circuit breaker can be automatically unlocked after maintenance is completed, preventing operators from forgetting to unlock the circuit breaker after maintenance, which could affect the circuit breaker's ability to disconnect the circuit and ensure electrical safety. Utility Model Content

[0005] To address the issue of operators locking circuit breakers during maintenance to prevent accidental activation and safety accidents, but the circuit breaker not automatically unlocking after maintenance, and operators forgetting to unlock the switch, which would affect the circuit breaker's ability to disconnect the circuit normally, thus compromising safety.

[0006] The technical solution of this utility model is as follows: a cabinet-mounted AC circuit breaker for preventing accidental activation, comprising a circuit breaker body, a protective shell, a cover, a switch, and a fixing assembly. The circuit breaker body is disposed inside the protective shell, the cover is hinged to the front side of the protective shell, a switch is disposed on the front side of the circuit breaker body, a slide groove is formed on the front side of the circuit breaker body, a slider is slidably connected inside the slide groove, the front side of the slider has an inclined structure, a limit bracket is fixedly installed on the front side of the slider, a spring is fixedly installed on one side of the slider, the spring is fixedly connected to the inner wall of the slide groove, a lever is fixedly installed on one side of the limit bracket, a pressure rod is fixedly installed inside the cover, one end of the pressure rod has a spherical structure, the pressure rod corresponds to the inclined structure of the slider, and the fixing assembly is disposed on the periphery of the protective shell.

[0007] Preferably, by setting up a cover and protective shell, the circuit breaker body can be shielded and protected when no maintenance work is being performed. This effectively prevents external factors from accidentally activating the circuit breaker switch, leading to accidental closing or opening. The fixing component secures the cover when it is closed, preventing accidental opening. When the cover is opened to operate the circuit breaker body, a spring pushes a slider to slide within a groove, pushing the limit bracket to the periphery of the switch, thereby limiting and locking the switch and preventing accidental activation of the circuit breaker switch during maintenance work, leading to circuit breaking. If the circuit breaker body is closed or opened, causing a safety accident, a lever is set to pull the slider along the slide groove to compress the spring, thereby unlocking the circuit breaker body switch. This allows the operator to operate the circuit breaker body switch. When the maintenance is completed, the cover is closed, and the pressure rod contacts the arc surface of the slider, which pushes the slider along the slide groove and compresses the spring. This causes the limit frame to move away from the periphery of the circuit breaker body switch, automatically unlocking the circuit breaker body switch. During the next maintenance, the cover is opened, the pressure rod separates from the inclined surface of the slider, and the spring pushes the limit frame to automatically lock the switch.

[0008] Preferably, the circuit breaker body has multiple sets of positioning slots on its outer periphery, and multiple sets of positioning strips are fixedly installed inside the protective shell, with the positioning strips corresponding to the positioning slots.

[0009] Preferably, the circuit breaker body has multiple sets of fixing holes on its periphery, and the protective shell has multiple sets of mounting blocks fixedly installed on its periphery.

[0010] Preferably, the protective shell has a groove on the front side and a sealing ring is provided on the rear side of the cover, with the sealing ring corresponding to the groove.

[0011] Preferably, an observation window is embedded in the side wall of the cover, and a handle is fixedly installed on the front side of the cover.

[0012] Preferably, the locking component includes a fixing block and a through hole. Two sets of fixing blocks are provided, and the two sets of fixing blocks are symmetrically fixedly installed on both sides of the cover. The surface of the fixing block is provided with a through hole.

[0013] Preferably, the locking assembly includes a support plate and a plug rod. Two sets of support plates are provided, and the two sets of support plates are symmetrically fixed on both sides of the protective shell. The plug rod is slidably connected to the inside of the support plate, and the plug rod corresponds to the through hole on the surface of the fixing block.

[0014] The beneficial effects of this utility model are: When maintenance is required, the cover is opened. The pressure rod then moves away from the inclined surface of the slider, and the spring pushes the slider to slide within the groove. This pushes the limit bracket to the periphery of the switch, locking it and preventing accidental activation of the circuit breaker during maintenance. A lever allows the operator to easily pull the slider along the groove to compress the spring, temporarily unlocking the switch for easier operation. After maintenance, the cover is closed normally. The pressure rod then contacts the curved surface of the slider, pushing it along the groove and compressing the spring. This causes the limit bracket to move away from the periphery of the circuit breaker switch, automatically unlocking the switch and preventing operators from forgetting to unlock it after maintenance, which could affect normal operation. For the next maintenance, the cover is opened, the pressure rod separates from the inclined surface of the slider, and the spring pushes the limit bracket to automatically lock the switch, preventing accidental activation. Attached Figure Description

[0015] Figure 1 The diagram shown is a three-dimensional structural schematic of the closed state of the cover of the AC circuit breaker inside the cabinet to prevent accidental contact according to this utility model. Figure 2 The diagram shown is a three-dimensional structural schematic of the cabinet AC circuit breaker cover with anti-accidental touch feature in the open state. Figure 3 This invention relates to an AC circuit breaker designed to prevent accidental activation within a cabinet. Figure 2 Enlarged 3D structural diagram of the circled area; Figure 4 The diagram shown is a three-dimensional structural diagram of the cabinet AC circuit breaker body in disassembled state, which is an anti-accidental touch device according to this utility model. Explanation of reference numerals in the attached drawings: 1. Circuit breaker body; 101. Positioning groove; 102. Fixing hole; 2. Protective shell; 201. Positioning strip; 202. Groove; 203. Mounting block; 3. Cover; 301. Sealing ring; 302. Observation window; 303. Handle; 4. Switch; 401. Slide groove; 402. Sliding block; 403. Limiting bracket; 404. Spring; 405. Pressure rod; 406. Toggle lever; 501. Fixing block; 502. Through hole; 503. Support plate; 504. Insert rod. Detailed Implementation

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] Please see Figure 2 and Figure 3This utility model provides an embodiment: an anti-accidental-touch cabinet AC circuit breaker, including a circuit breaker body 1, a protective shell 2, a cover 3, a switch 4, and a fixing assembly. The circuit breaker body 1 is disposed inside the protective shell 2, the cover 3 is hinged to the front side of the protective shell 2, the switch 4 is disposed on the front side of the circuit breaker body 1, a slide groove 401 is formed on the front side of the circuit breaker body 1, a slider 402 is slidably connected inside the slide groove 401, the front side of the slider 402 has an inclined structure, a limit bracket 403 is fixedly installed on the front side of the slider 402, and a spring is fixedly installed on one side of the slider 402. 404, spring 404 is fixedly connected to the inner wall of slide 401, a lever 406 is fixedly installed on one side of limit bracket 403, a pressure rod 405 is fixedly installed inside cover 3, one end of pressure rod 405 is a spherical structure, pressure rod 405 corresponds to the inclined structure of slider 402, and the fixing component is set on the outer periphery of protective shell 2; by setting cover 3 and protective shell 2, the circuit breaker body 1 can be shielded and protected when no maintenance work is performed, which can effectively prevent external factors from accidentally touching the switch 4 of circuit breaker body 1, resulting in accidental closing or opening. When the cover 3 is closed, it is fixed to prevent accidental opening. When the cover 3 is opened to operate the circuit breaker body 1, the spring 404 pushes the slider 402 to slide in the slide groove 401, which can push the limit bracket 403 to the periphery of the switch 4, thereby limiting and locking the switch 4. This prevents the operator from accidentally touching the switch 4 of the circuit breaker body 1 during maintenance work, causing the circuit breaker body 1 to close or open, resulting in a safety accident. By setting the lever 406 to pull the slider 402 along the slide groove 401, the spring 404 is compressed, thus limiting the circuit breaker body. The switch 4 of circuit breaker 1 is unlocked, allowing the operator to operate the switch 4 of circuit breaker 1. When maintenance is completed, the cover 3 is closed. By setting the pressure rod 405 to contact the arc surface of the slider 402, the slider 402 will be pushed to slide along the slide groove 401 and compress the spring 404, thereby causing the limit frame 403 to move away from the periphery of the switch 4 of circuit breaker 1, automatically unlocking the switch 4 of circuit breaker 1. During the next maintenance, the cover 3 is opened, the pressure rod 405 separates from the inclined surface of the slider 402, and the spring 404 will push the limit frame 403 to automatically lock the switch 4.

[0018] Please see Figure 2 and Figure 4In this embodiment, multiple sets of positioning grooves 101 are provided on the periphery of the circuit breaker body 1, and multiple sets of positioning strips 201 are fixedly installed inside the protective shell 2. The positioning strips 201 correspond to the positioning grooves 101. By setting the positioning grooves 101 and positioning strips 201 to cooperate, the circuit breaker body 1 can be conveniently positioned and placed inside the protective shell 2. Multiple sets of fixing holes 102 are provided on the periphery of the circuit breaker body 1, and multiple sets of mounting blocks 203 are fixedly installed on the periphery of the protective shell 2. By setting the fixing holes 102, the circuit breaker body 1 can be fixed inside the protective shell 2, and by setting the mounting blocks 203, the circuit breaker body 1 can be fixedly installed inside the distribution cabinet. A groove 202 is provided on the front side of the protective shell 2, and a sealing ring 301 is provided on the rear side of the cover 3. The sealing ring 301 corresponds to the groove 202. By setting the sealing ring 301 to cooperate with the groove 202, the connection between the cover 3 and the protective shell 2 can be sealed when the cover 3 is closed, preventing external moisture or dust from entering the interior of the protective shell 2 and affecting the circuit breaker body 1.

[0019] Please see Figure 1 and Figure 2 In this embodiment, an observation window 302 is embedded and fixedly installed in the side wall of the cover 3, and a handle 303 is fixedly installed on the front side of the cover 3. The observation window 302 allows for easy observation of the switch 4 inside the protective shell 2, and the handle 303 facilitates the operator to open and close the cover 3. The locking assembly includes a fixing block 501 and a through hole 502. Two sets of fixing blocks 501 are provided, and the two sets of fixing blocks 501 are symmetrically fixedly installed on both sides of the cover 3. The surface of the fixing block 501 is provided with a through hole 502. The locking assembly includes a support plate 503 and a plug rod 504. The support plate 503 is provided with two... Two sets of support plates 503 are symmetrically fixed on both sides of the protective shell 2. The insertion rod 504 is slidably connected to the inside of the support plate 503. The insertion rod 504 corresponds to the through hole 502 on the surface of the fixing block 501. The insertion rod 504 is supported and installed by the support plate 503. When the cover 3 is closed, the insertion rod 504 is inserted into the through hole 502 of the fixing block 501. Under the action of gravity, the insertion rod 504 remains stable, thereby fixing the cover 3. When the cover 3 needs to be opened, the insertion rod 504 only needs to be lifted away from the through hole 502 to unlock the cover 3. The structure is simple and easy to operate.

[0020] When working, the positioning groove 101 and the positioning strip 201 are used to position the circuit breaker body 1 inside the protective shell 2. The fixing hole 102 is used to fix the circuit breaker body 1 inside the protective shell 2. The mounting block 203 is used to fix the protective shell 2 inside the distribution cabinet, thereby completing the installation and fixing of the circuit breaker body 1. When not performing maintenance work, the cover 3 is closed. The sealing ring 301 and the groove 202 cooperate to seal the connection between the cover 3 and the protective shell 2 when the cover 3 is closed. Thus, the cover 3 and the protective shell 2 protect the internal circuit breaker body 1. At this time, the plug rod 504 is inserted into the through hole 502 of the fixing block 501. Under the action of gravity, the plug rod 504 remains stable and can fix the cover 3 to prevent the cover 3 from opening accidentally. When maintenance is required, pull out the plug rod 504, and use the handle 303 to pull the cover 3 to rotate and open it. At this time, the pressure rod 405 leaves the inclined surface of the slider 402, and the spring 404 pushes the slider 402 to slide in the slide groove 401. This can push the limit bracket 403 to the periphery of the switch 4, thereby limiting and locking the switch 4 to prevent the operator from accidentally touching the switch 4 of the circuit breaker body 1 during maintenance, which could lead to closing or opening the circuit and cause a safety accident. The lever 406 can be used to help the operator pull the slider 402 to move along the slide groove 401 to compress the spring 404 and temporarily unlock the switch 4, making it easier for the operator to operate the switch 4. After maintenance is completed, the cover 3 is closed normally. The pressure rod 405 contacts the arc surface of the slider 402, which pushes the slider 402 to slide along the slide groove 401 and compress the spring 404. This causes the limit frame 403 to move away from the periphery of the circuit breaker switch 4, automatically unlocking the switch 4. The condition of the switch 4 inside the cover 3 can be easily observed through the observation window 302. During the next maintenance, the cover 3 is opened, the pressure rod 405 separates from the inclined surface of the slider 402, and the spring 404 pushes the limit frame 403 to automatically lock the switch 4 to prevent accidental activation.

[0021] Through the above steps, when the cover 3 is opened for maintenance, the spring 404 pushes the slider 402 to slide along the slide groove 401, pushing the limit frame 403 to the periphery of the switch 4, thus limiting and locking the switch 4 to prevent accidental contact and potential safety accidents. When the cover 3 is closed after maintenance, the pressure rod 405 contacts the arc surface of the slider 402, pushing the slider 402 to slide and compress the spring 404, causing the limit frame 403 to move away from the periphery of the circuit breaker body 1 and the switch 4, automatically unlocking the switch 4. This solves the problem of locking the circuit breaker during maintenance to prevent accidental contact and potential safety accidents. However, the circuit breaker cannot automatically unlock after maintenance is completed. If the operator forgets to unlock the switch 4, it will affect the normal circuit disconnection of the circuit breaker, which is not safe enough.

[0022] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A cabinet-mounted AC circuit breaker with anti-accidental contact function, comprising a circuit breaker body (1), a protective shell (2), a cover (3), and a switch (4), wherein the cover (3) is hinged to the front side of the protective shell (2), and the switch (4) is provided on the front side of the circuit breaker body (1), characterized in that: It also includes a fixing component. The circuit breaker body (1) is located inside the protective shell (2). A slide groove (401) is provided on the front side of the circuit breaker body (1). A slider (402) is slidably connected inside the slide groove (401). The front side of the slider (402) is a slope structure. A limit frame (403) is fixedly installed on the front side of the slider (402). A spring (404) is fixedly installed on one side of the slider (402). The spring (404) is fixedly connected to the inner wall of the slide groove (401). A lever (406) is fixedly installed on one side of the limit frame (403). A pressure rod (405) is fixedly installed inside the cover (3). One end of the pressure rod (405) is a spherical structure. The pressure rod (405) and the slope structure of the slider (402) correspond to each other. The fixing component is located on the periphery of the protective shell (2).

2. The cabinet-mounted AC circuit breaker for preventing accidental activation according to claim 1, characterized in that: The circuit breaker body (1) has multiple sets of positioning grooves (101) on its periphery, and multiple sets of positioning strips (201) are fixedly installed inside the protective shell (2). The positioning strips (201) correspond to the positioning grooves (101).

3. The cabinet-mounted AC circuit breaker for preventing accidental activation according to claim 1, characterized in that: The circuit breaker body (1) has multiple sets of fixing holes (102) on its periphery, and the protective shell (2) has multiple sets of mounting blocks (203) fixedly installed on its periphery.

4. The cabinet-mounted AC circuit breaker for preventing accidental activation according to claim 1, characterized in that: The protective shell (2) has a groove (202) on the front side, and the cover (3) has a sealing ring (301) on the rear side, with the sealing ring (301) and the groove (202) corresponding to each other.

5. The cabinet-mounted AC circuit breaker for preventing accidental activation according to claim 1, characterized in that: An observation window (302) is fixedly installed in the side wall of the cover (3), and a handle (303) is fixedly installed on the front side of the cover (3).

6. The cabinet-mounted AC circuit breaker for preventing accidental activation according to claim 1, characterized in that: The locking assembly includes a fixing block (501) and a through hole (502). There are two sets of fixing blocks (501), and the two sets of fixing blocks (501) are symmetrically fixed on both sides of the cover (3). The surface of the fixing block (501) is provided with a through hole (502).

7. A cabinet-mounted AC circuit breaker for preventing accidental activation according to claim 6, characterized in that: The locking assembly includes a support plate (503) and a plug rod (504). The support plate (503) is provided in two sets, and the two sets of support plates (503) are symmetrically fixed on both sides of the protective shell (2). The plug rod (504) is slidably connected to the inside of the support plate (503), and the plug rod (504) corresponds to the through hole (502) on the surface of the fixing block (501).

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