Circuit breaker drawer structure of GCS type low-voltage draw-out switch cabinet

Abstract

The utility model discloses a breaker drawer structure of a GCS type low-voltage draw-out type switch cabinet, which belongs to the technical field of switch cabinets, and is characterized by comprising a cabinet body, a placement rack is bolted on the inner wall of the cabinet body, an auxiliary pushing mechanism is bolted on the inner wall of the placement rack, a drawer assembly is arranged at the top of the placement rack, and the drawer assembly is arranged on the inner wall of the placement rack. The breaker drawer structure solves the problems that when an existing breaker drawer structure of a GCS type low-voltage draw-out type switch cabinet is used, drawer plugging operation is inconvenient mostly, operation is difficult due to factors such as large friction force and mechanical resistance in the plugging process, manpower is consumed, jamming is prone to occurring, and the drawer structure is inconvenient to operate. And the problems that heat generated during operation of the circuit breaker is difficult to effectively dissipate and lacks an efficient cooling mechanism, so that the heat is accumulated in a cabinet body, the internal temperature is increased, the aging of electrical elements is easy to accelerate, the insulating property is easy to reduce, and faults are caused are solved.

Description

Technical Field

[0001] This utility model relates to the field of switchgear technology, and in particular to a circuit breaker drawer structure for a GCS type low-voltage withdrawable switchgear. Background Technology

[0002] The circuit breaker drawer structure of the GCS type low-voltage withdrawable switchgear is a withdrawable functional unit that integrates circuit breakers and related electrical components. As the core component of the switchgear, it can realize circuit switching control and protection, has flexible interchangeability, is easy to maintain and replace, and can effectively improve the ease of use, maintenance efficiency and power supply reliability of the switchgear.

[0003] The existing pull-out switch cabinet has only one set of mechanical locking mechanism. When this set of locking mechanism is unlocked, many operators will pull the drawer out from the drawer at once, which will cause the drawer to deform.

[0004] An existing patent (publication number: CN220857439U) discloses a mechanical interlocking structure for a low-voltage withdrawable switchgear, including a switchgear cabinet. A drawer is installed inside the cabinet, and several partitions are evenly distributed on the inner wall of the cabinet. The bottom of both the drawer and the partitions has a slot. A circuit breaker is installed at the bottom of the drawer's inner cavity. A bracket is installed on the outer wall of the circuit breaker, and a circuit-breaking connection mechanism is installed on the inner wall of the bracket. An operating mechanism is installed on the inner wall of the circuit-breaking connection mechanism. The operating mechanism opens the circuit breaker and simultaneously separates the drawer from the partitions. At this point, the operator needs to pull the locking mechanism outwards with both hands to pull the drawer out. This solves the problem of existing withdrawable switchgear having only one set of mechanical locking mechanisms. When this set of locking mechanisms is unlocked, many operators often pull the drawer out at once, causing deformation.

[0005] To address the aforementioned issues, existing patents offer solutions. However, the drawer structure of existing GCS-type low-voltage withdrawable switchgear often presents challenges in drawer insertion and removal. The insertion and removal process is prone to difficulties due to factors such as high friction and mechanical resistance, which is labor-intensive and prone to jamming, affecting the efficiency of equipment maintenance and repair. Furthermore, the heat generated by the circuit breaker during operation is difficult to dissipate effectively, lacking an efficient cooling mechanism. This causes heat to accumulate inside the cabinet, leading to increased internal temperature, accelerated aging of electrical components, reduced insulation performance, and ultimately, malfunctions.

[0006] Therefore, a circuit breaker drawer structure for a GCS-type low-voltage withdrawable switchgear is proposed. Utility Model Content

[0007] The purpose of this utility model is to provide a circuit breaker drawer structure for a GCS type low-voltage withdrawable switchgear. This solves the problem that existing GCS type low-voltage withdrawable switchgear circuit breaker drawer structures often suffer from inconvenient drawer insertion and removal operations. The insertion and removal process is prone to difficulties due to factors such as high friction and mechanical resistance, which consumes manpower and is prone to jamming, affecting the efficiency of equipment maintenance and repair. Furthermore, the heat generated by the circuit breaker during operation is difficult to dissipate effectively, lacking an efficient cooling mechanism. This causes heat to accumulate inside the cabinet, leading to an increase in internal temperature, which can accelerate the aging of electrical components, reduce insulation performance, and even cause malfunctions.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a circuit breaker drawer structure for a GCS type low-voltage withdrawable switchgear, comprising a cabinet, a placement rack bolted to the inner wall of the cabinet, an auxiliary pushing mechanism bolted to the inner wall of the placement rack, a drawer assembly provided on the top of the placement rack, a slider bolted to the bottom of the drawer assembly, the surface of the slider being slidably connected to the inner wall of the placement rack, a circuit breaker structure provided on the inner wall of the cabinet, a heat-absorbing assembly bolted to the right side of the circuit breaker structure, and a fan assembly provided on the top of the heat-absorbing assembly;

[0009] The auxiliary pushing mechanism includes a fixed block, a spring frame, and a movable block. The front side of the fixed block is fixedly connected to the rear side of the spring frame, the front side of the spring frame is fixedly connected to the rear side of the movable block, and the surface of the fixed block is bolted to the inner wall of the placement frame.

[0010] Preferably, the surface of the movable block is slidably connected to the inner wall of the placement rack, and the rear side of the slider is in contact with the front side of the movable block.

[0011] Preferably, the inner wall of the placement rack is fitted with an anti-detachment block, and the inner wall of the anti-detachment block is movably connected with a knob, the surface of which is threadedly connected to the inner wall of the placement rack.

[0012] Preferably, the inner wall of the placement rack is provided with a fixing groove for use with the anti-detachment block, and the inner wall of the placement rack is provided with a disassembly groove for use with the slider.

[0013] Preferably, the inner wall of the placement rack is provided with a sliding groove for use with the slider, and the inner wall of the placement rack is provided with an air groove.

[0014] Preferably, the heat-absorbing assembly includes a metal plate and fins, with the left side of the fins bolted to the right side of the metal plate, and the left side of the metal plate bolted to the right side of the circuit breaker structure.

[0015] Preferably, the inner wall of the drawer assembly is bolted with a fixing bracket, and the inner wall of the fixing bracket is inserted with a plug.

[0016] Preferably, a connecting block is bolted to the left side of the insert block, and the left side of the connecting block is bolted to the right side of the fan assembly.

[0017] Preferably, a protective frame is bolted to the top of the fan assembly, and a protective net is bolted to the inner wall of the protective frame.

[0018] Preferably, a connecting bracket is bolted to the inner wall of the drawer assembly, and a desiccant is placed on the inner wall of the connecting bracket.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] 1. This application provides an auxiliary pushing mechanism. During the insertion or removal of the drawer assembly, the elastic force of the spring frame can assist in pushing the movable block, thereby providing additional pushing force for the drawer assembly. This avoids problems such as difficult operation and jamming during the insertion and removal of the drawer assembly, improves the convenience of operation, and reduces the intensity of manual operation.

[0021] 2. This application incorporates a heat-absorbing component and a fan component. The heat-absorbing component can quickly absorb the heat generated by the circuit breaker during operation, while the fan component guides the heat absorbed by the heat-absorbing component out in a timely manner through forced convection, facilitating the subsequent removal of hot air from the cabinet and forming an efficient heat dissipation cycle. This effectively reduces the operating temperature of the circuit breaker structure, avoids problems such as performance degradation and shortened lifespan of electrical components due to overheating, and significantly improves the operational stability and reliability of the circuit breaker structure. Attached Figure Description

[0022] Figure 1 This is an overall structural diagram of the circuit breaker drawer structure of the GCS type low-voltage withdrawable switchgear of this utility model.

[0023] Figure 2 This is a structural diagram of the drawer assembly of this utility model;

[0024] Figure 3 This is a structural diagram of the heat-absorbing component of this utility model;

[0025] Figure 4 This is a structural diagram of the fan assembly of this utility model;

[0026] Figure 5 This is a structural diagram of the auxiliary propulsion mechanism of this utility model;

[0027] Figure 6 This is a structural diagram of the anti-detachment block of this utility model;

[0028] Figure 7 This is a structural diagram of the drying box assembly of this utility model.

[0029] In the diagram, 1. Cabinet; 2. Auxiliary pushing mechanism; 201. Fixed block; 202. Spring frame; 203. Movable block; 3. Heat absorption assembly; 301. Metal plate; 302. Fin; 4. Placement rack; 5. Drawer assembly; 6. Slider; 7. Circuit breaker structure; 8. Fan assembly; 9. Anti-detachment block; 10. Knob; 11. Fixed groove; 12. Removal groove; 13. Sliding groove; 14. Air groove; 15. Fixed frame; 16. Insert block; 17. Connecting block; 18. Protective frame; 19. Protective net; 20. Connecting frame; 21. Drying box assembly; 22. Desiccant. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Please see Figure 1-7 The present invention provides the following technical solution:

[0032] A circuit breaker drawer structure for a GCS type low-voltage withdrawable switchgear includes a cabinet 1, a placement rack 4 bolted to the inner wall of the cabinet 1, an auxiliary pushing mechanism 2 bolted to the inner wall of the placement rack 4, a drawer assembly 5 provided on the top of the placement rack 4, a slider 6 bolted to the bottom of the drawer assembly 5, the surface of the slider 6 being slidably connected to the inner wall of the placement rack 4, a circuit breaker structure 7 provided on the inner wall of the cabinet 1, a heat absorption assembly 3 bolted to the right side of the circuit breaker structure 7, and a fan assembly 8 provided on the top of the heat absorption assembly 3.

[0033] The auxiliary pushing mechanism 2 includes a fixed block 201, a spring frame 202 and a movable block 203. The front side of the fixed block 201 is fixedly connected to the rear side of the spring frame 202, the front side of the spring frame 202 is fixedly connected to the rear side of the movable block 203, and the surface of the fixed block 201 is bolted to the inner wall of the placement frame 4.

[0034] In this embodiment: By setting an auxiliary pushing mechanism 2, the fixed block 201 is fixed to the position of the spring frame 202, and the spring frame 202 is fixed to the position of the movable block 203. During the insertion or removal of the drawer assembly 5, the elastic force of the spring frame 202 can assist in pushing the movable block 203, thereby providing additional pushing force for the drawer assembly 5. This avoids problems such as difficult operation and jamming during the insertion and removal of the drawer assembly 5, improves the convenience of operation, and reduces the intensity of manual operation. By setting a heat-absorbing component 3 and a fan component 8, the heat-absorbing component 3 can quickly absorb the heat generated by the circuit breaker during operation, and the fan component 8 can guide the heat absorbed by the heat-absorbing component 3 to be discharged in a timely manner through forced convection, so that the hot air can leave the cabinet 1 in time, forming an efficient heat dissipation cycle. This can effectively reduce the operating temperature of the circuit breaker structure 7, avoid problems such as performance degradation and shortened life of electrical components due to overheating, and greatly improve the working stability and reliability of the circuit breaker structure 7.

[0035] Specifically, such as Figure 5 As shown, the surface of the movable block 203 is slidably connected to the inner wall of the placement rack 4, and the rear side of the slider 6 is in contact with the front side of the movable block 203.

[0036] Specifically, such as Figure 5 As shown, the inner wall of the placement rack 4 is fitted with an anti-detachment block 9, and the inner wall of the anti-detachment block 9 is movably connected with a knob 10. The surface of the knob 10 is threadedly connected to the inner wall of the placement rack 4.

[0037] Specifically, such as Figure 6 As shown, the inner wall of the placement rack 4 is provided with a fixing groove 11 that is used in conjunction with the anti-detachment block 9, and the inner wall of the placement rack 4 is provided with a disassembly groove 12 that is used in conjunction with the slider 6.

[0038] In this embodiment: the movable block 203 is slidably connected to the inner wall of the placement rack 4 and contacts the rear side of the slider 6, ensuring that the force of the auxiliary pushing mechanism 2 can be accurately transmitted to the drawer assembly 5, improving the stability of the pushing effect. The anti-detachment block 9 provided on the inner wall of the placement rack 4 cooperates with the knob 10. The knob 10 can adjust the position of the anti-detachment block 9 by rotating the screw thread to prevent the drawer assembly 5 from accidentally sliding out and enhance the safety of use. The fixing groove 11 opened on the inner wall of the placement rack 4 makes it easy for the anti-detachment block 9 to be installed on the inner wall of the placement rack 4 through the fixing groove 11. The disassembly groove 12 opened on the inner wall of the placement rack 4 makes it easy for the drawer assembly 5 to drive the slider 6 to be disassembled through the disassembly groove 12, making it easy to remove the drawer assembly 5.

[0039] Specifically, such as Figure 5 , Figure 6 As shown, the inner wall of the placement rack 4 is provided with a sliding groove 13 that cooperates with the slider 6, and the inner wall of the placement rack 4 is provided with an air groove 14.

[0040] Specifically, such as Figure 3As shown, the heat absorption assembly 3 includes a metal plate 301 and fins 302. The left side of the fins 302 is bolted to the right side of the metal plate 301, and the left side of the metal plate 301 is bolted to the right side of the circuit breaker structure 7.

[0041] In this embodiment: the sliding groove 13 on the inner wall of the shelf 4 provides guidance for the slider 6, ensuring that the drawer assembly 5 slides smoothly and reducing shaking and friction loss. The air groove 14 optimizes the airflow path inside the cabinet 1 and forms an air circulation channel with the fan assembly 8, further improving heat dissipation efficiency. The metal plate 301 in the heat absorption assembly 3 is attached to the circuit breaker structure 7 to quickly absorb heat. The fins 302 increase the heat dissipation area and accelerate the transfer of heat to the air, thus achieving efficient heat dissipation.

[0042] Specifically, such as Figure 3 As shown, a fixing bracket 15 is bolted to the inner wall of the drawer assembly 5, and an insert block 16 is inserted into the inner wall of the fixing bracket 15.

[0043] Specifically, such as Figure 4 As shown, a connecting block 17 is bolted to the left side of the plug 16, and the left side of the connecting block 17 is bolted to the right side of the fan assembly 8.

[0044] Specifically, such as Figure 4 As shown, a protective frame 18 is bolted to the top of the fan assembly 8, and a protective net 19 is bolted to the inner wall of the protective frame 18.

[0045] Specifically, such as Figure 7 As shown, a connecting bracket 20 is bolted to the inner wall of the drawer assembly 5, and a desiccant 22 is snapped onto the inner wall of the connecting bracket 20.

[0046] In this embodiment: the fixing bracket 15 is fixed to the position of the drawer assembly 5, which facilitates the subsequent installation of the fan assembly 8, connecting block 17, and insert block 16 on the inner wall of the fixing bracket 15, thus facilitating the installation of the fan assembly 8. The top protective bracket 18 and protective net 19 of the fan assembly 8 prevent foreign objects from entering and damaging the fan, ensuring the normal operation of the fan assembly 8. The connecting bracket 20 inside the drawer assembly 5 engages with the drying box assembly 21 and places the desiccant 22, continuously absorbing internal moisture, reducing the risk of moisture corrosion to electrical components, and effectively improving the moisture-proof performance and service life of the equipment.

[0047] Working principle: During the use of cabinet 1, an auxiliary pushing mechanism 2 is set up. During use, the fixed block 201 is fixed to the position of the spring frame 202, and the spring frame 202 is fixed to the position of the movable block 203. During the insertion or removal of drawer assembly 5, the elastic force of the spring frame 202 can assist in pushing the movable block 203, thereby providing additional pushing force for drawer assembly 5. This avoids problems such as difficult operation and jamming during the insertion and removal of drawer assembly 5, improves the convenience of operation, and reduces the intensity of manual operation. By setting up heat absorption component 3 and fan assembly 8, heat absorption component 3 can quickly absorb the heat generated by the circuit breaker operation, and fan assembly 8 can guide the heat absorbed by heat absorption component 3 to be discharged in time through forced convection, so that the hot air can leave cabinet 1 in time, forming an efficient heat dissipation cycle. This can effectively reduce the operating temperature of circuit breaker structure 7, avoid problems such as performance degradation and shortened life of electrical components due to overheating, and greatly improve the working stability and reliability of circuit breaker structure 7.

[0048] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A circuit breaker drawer structure of a GCS type low voltage draw-out switchgear cabinet comprising a cabinet body (1), characterized in that: The inner wall of the cabinet (1) is bolted with a shelf (4), the inner wall of the shelf (4) is bolted with an auxiliary pushing mechanism (2), the top of the shelf (4) is provided with a drawer assembly (5), the bottom of the drawer assembly (5) is bolted with a slider (6), the surface of the slider (6) is slidably connected to the inner wall of the shelf (4), the inner wall of the cabinet (1) is provided with a circuit breaker structure (7), the right side of the circuit breaker structure (7) is bolted with a heat absorption assembly (3), the top of the heat absorption assembly (3) is provided with a fan assembly (8); The auxiliary pushing mechanism (2) includes a fixed block (201), a spring frame (202) and a movable block (203). The front side of the fixed block (201) is fixedly connected to the rear side of the spring frame (202), the front side of the spring frame (202) is fixedly connected to the rear side of the movable block (203), and the surface of the fixed block (201) is bolted to the inner wall of the placement frame (4).

2. The circuit breaker drawer structure of a GCS type low voltage draw-out switchgear according to claim 1, characterized in that: The surface of the movable block (203) is slidably connected to the inner wall of the placement rack (4), and the rear side of the slider (6) is in contact with the front side of the movable block (203).

3. The circuit breaker drawer structure of a GCS type low voltage draw-out switchgear according to claim 1, characterized in that: The inner wall of the placement rack (4) is fitted with an anti-detachment block (9), and the inner wall of the anti-detachment block (9) is movably connected with a knob (10), the surface of the knob (10) being threadedly connected to the inner wall of the placement rack (4).

4. The circuit breaker drawer structure of a GCS type low voltage draw-out switchgear according to claim 3, characterized in that: The inner wall of the placement rack (4) is provided with a fixing groove (11) for use with the anti-detachment block (9), and the inner wall of the placement rack (4) is provided with a disassembly groove (12) for use with the slider (6).

5. The circuit breaker drawer structure of a GCS type low voltage draw-out switchgear according to claim 1, characterized in that: The inner wall of the placement rack (4) is provided with a sliding groove (13) for use with the slider (6), and the inner wall of the placement rack (4) is provided with an air groove (14).

6. The circuit breaker drawer structure of a GCS type low voltage draw-out switchgear according to claim 1, characterized in that: The heat absorption assembly (3) includes a metal plate (301) and fins (302). The left side of the fins (302) is bolted to the right side of the metal plate (301), and the left side of the metal plate (301) is bolted to the right side of the circuit breaker structure (7).

7. The circuit breaker drawer structure of a GCS type low voltage draw-out switchgear according to claim 1, characterized in that: The inner wall of the drawer assembly (5) is bolted with a fixing bracket (15), and the inner wall of the fixing bracket (15) is inserted with a plug (16).

8. The circuit breaker drawer structure of a GCS type low voltage draw-out switchgear according to claim 7, characterized in that: A connecting block (17) is bolted to the left side of the insert (16), and the left side of the connecting block (17) is bolted to the right side of the fan assembly (8).

9. The circuit breaker drawer structure of a GCS type low voltage draw-out switchgear according to claim 1, characterized in that: A protective frame (18) is bolted to the top of the fan assembly (8), and a protective net (19) is bolted to the inner wall of the protective frame (18).

10. The circuit breaker drawer structure of a GCS type low voltage draw-out switchgear according to claim 1, characterized in that: The inner wall of the drawer assembly (5) is bolted with a connecting bracket (20), and the inner wall of the connecting bracket (20) is snapped with a desiccant assembly (21). The inner wall of the desiccant assembly (21) is filled with a desiccant (22).

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