Low-voltage complete switch cabinet
By introducing adjustable-spacing partitions and cooling fan systems into low-voltage switchgear, combined with protective enclosures and cable management mechanisms, the problems of insufficient airflow and accidental contact of electrical components are solved, achieving better heat dissipation and safer installation.
Patent Information
- Application Number
- CN202520439149.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-13
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-03-13
AI Technical Summary
In existing low-voltage switchgear, the air circulation inside the cabinet is insufficient, which prevents heat from being effectively dissipated, and electrical control components are prone to accidental short circuits, affecting the normal use of the equipment.
An adjustable-spacing partition and cooling fan system were designed, combined with a protective shell and cable management mechanism, to achieve partitioned installation and neat arrangement of electrical components, enhance airflow and heat dissipation, and prevent accidental contact.
It improves the heat dissipation of low-voltage switchgear, ensures that electrical components are installed neatly and safely, avoids messy wires and accidental contact, and enhances the safety and convenience of the device.
Smart Images

Figure CN223942272U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of switchgear technology, specifically a low-voltage complete switchgear. Background Technology
[0002] Low-voltage switchgear is an important power distribution equipment in power systems, used for controlling, protecting, and distributing electrical energy. Low-voltage switchgear is a product used for converting and configuring electrical energy, and it features strong breaking capacity, good dynamic and thermal stability, flexible electrical schemes, convenient combination, strong series and practicality, and novel structure.
[0003] In the prior art, such as the low-voltage switchgear proposed in patent application number "CN202323310169.0", the low-voltage switchgear provided by this utility model realizes the splicing of multiple sets of support seats by setting cross rods and connecting blocks, adjusting the interval size between the support seats, facilitating the readjustment and division of the internal space of the cabinet, and making it easy to pull out the equipment to be repaired, thus expanding the operating field of vision and improving the convenience and flexibility of the device.
[0004] However, in the aforementioned patent application, the air circulation inside the cabinet is insufficient, and the heat generated by the electrical components installed inside the cabinet cannot be dissipated well. If the electrical control components installed on the cabinet door are not installed securely or the wires are tangled, the electrical control components on the cabinet door can easily cause accidental contact with the electrical components inside the cabinet after the cabinet door is closed, resulting in short circuits and other hazards, affecting the normal use of the low-voltage switchgear. Utility Model Content
[0005] The purpose of this utility model is to provide a low-voltage switchgear to solve the problems mentioned in the background art.
[0006] The objective of this utility model can be achieved through the following technical solutions:
[0007] A low-voltage switchgear includes a cabinet body. A cabinet door is hinged to the front surface of the cabinet body. Two support plates are fixedly installed inside the cabinet body. Several heat dissipation grooves are formed through the upper surface of each of the two support plates. Several partition plates are slidably connected to the upper surface of each of the two support plates. An adjustment mechanism is provided on the bottom surface of the support plates. A protective shell is fixedly connected to the outer wall of the cabinet door. A movable door is hinged to one side of the protective shell. Several cable management mechanisms are provided on the outer wall of the cabinet door and inside the movable door. A back panel is movably installed on the back of the cabinet body. An exhaust fan is installed at the top inside the cabinet body.
[0008] The adjustment mechanism includes two connecting plates and several sliding plates. The two connecting plates are fixedly connected to the bottom surface of the movable door, and the several sliding plates are slidably connected to the bottom surface of the support plate. The upper end of the sliding plate is fixedly connected to the partition plate. Several cooling fans are installed between the outer walls of the two connecting plates and below the support plate.
[0009] Preferably, a connecting shaft is rotatably connected to the outer side wall of the skateboard near the bottom end, and a movable plate is fixedly connected to the outer wall of the connecting shaft and located inside the skateboard.
[0010] Preferably, an installation plate is fixedly connected to the outer wall of the skateboard, a connecting rod is fixedly connected to the bottom surface of the installation plate, an insert rod is inserted inside the connecting rod, and a return spring is installed between the upper end of the insert rod and the inner top end of the connecting rod.
[0011] Preferably, a plug plate is fixedly connected to the bottom end of the plug rod, and a circular plate is fixedly connected to one end of the connecting shaft. The outer wall of the circular plate has a slot, and the slot fits into the plug plate.
[0012] Preferably, the outer wall of the connecting plate has a plurality of slots, and the slots are fitted with one end of the movable plate.
[0013] Preferably, the cable management mechanism includes a support frame, with several movable plates slidably connected to the two inner side walls of the support frame, and two arc-shaped clamps slidably connected between the outer walls of the two movable plates, with the two arc-shaped clamps cooperating with each other, and magnet blocks fixedly connected to both ends of the two arc-shaped clamps, with the two magnet blocks cooperating with each other.
[0014] Preferably, the upper surface of the movable plate has a plurality of insertion holes through it, and fixing nails are inserted into the insertion holes. The upper surface of the movable plate also has fixing holes that fit into the fixing nails.
[0015] Preferably, a number of fixing blocks are fixedly connected to both outer side walls of the back panel, and fixing bolts are inserted into the outer side walls of the fixing blocks. A number of screw grooves are opened on both outer side walls of the cabinet, and the screw grooves fit with the fixing bolts.
[0016] The beneficial effects of this utility model are:
[0017] 1. This utility model uses adjustable partitions to divide the installation space into suitable sizes, accommodating electrical components of different sizes. This allows for the separate installation of electrical components in different areas, resulting in a neater installation and providing heat dissipation space between each component. Cooling fans blow air under the support plate to cool the components, and the heat dissipation grooves on the support plate provide airflow, improving air circulation within the cabinet. Combined with exhaust fans, hot air is continuously expelled from the cabinet, effectively dissipating heat and improving the heat dissipation effect of the low-voltage switchgear.
[0018] 2. In this utility model, each electrical control component installed on the cabinet door can be separated and protected by the protective shell and the movable door to avoid accidental contact with each electrical component inside the cabinet. The wires on each electrical control component can be inserted and placed between the two arc-shaped clamps to neatly arrange and fix the wires on each electrical control component, avoiding mess and preventing accidental contact with electrical components inside the cabinet caused by the scattered wires. Attached Figure Description
[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0021] Figure 2 This is a cross-sectional view of the back plate in this utility model;
[0022] Figure 3 This is a schematic diagram of the structure of the bearing plate and the connecting plate in this utility model;
[0023] Figure 4 This is a schematic diagram of the structure of the bearing plate and the partition plate in this utility model;
[0024] Figure 5 This is a cross-sectional view of the support plate in this utility model;
[0025] Figure 6 This utility model Figure 5 Enlarged view of point A in the middle;
[0026] Figure 7 This is a schematic diagram of the structure of the back plate and the protective shell in this utility model;
[0027] Figure 8 This is a schematic diagram of the load-bearing frame in this utility model;
[0028] Figure 9 This is a cross-sectional view of the load-bearing frame and the movable plate in this utility model.
[0029] The attached figures are labeled as follows:
[0030] 1. Cabinet body; 2. Cabinet door; 3. Back panel; 4. Exhaust fan; 5. Insert rod; 6. Support plate; 7. Protective shell; 8. Sliding door; 9. Divider plate; 10. Connecting plate; 11. Slide plate; 12. Cooling fan; 13. Movable plate; 14. Slot; 15. Connecting shaft; 16. Circular plate; 17. Insert plate; 18. Connecting rod; 19. Support frame; 20. Curved clamp plate; 21. Moving plate; 22. Fixing nail; 23. Magnet block; 24. Fixing block; 25. Heat dissipation groove. Detailed Implementation
[0031] 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 skilled in the art without creative effort are within the protection scope of the present utility model.
[0032] A type of low-voltage switchgear, such as Figures 1-9 As shown, the cabinet includes a cabinet body 1. A cabinet door 2 is hinged to the front surface of the cabinet body 1. Two support plates 6 are fixedly installed inside the cabinet body 1. Several heat dissipation grooves 25 are opened through the upper surface of the two support plates 6. Several partition plates 9 are slidably connected to the upper end of the two support plates 6. An adjustment mechanism is provided on the bottom surface of the support plates 6. A protective shell 7 is fixedly connected to the outer wall of the cabinet door 2. A movable door 8 is hinged to one side of the protective shell 7. Several cable management mechanisms are provided on the outer wall of the cabinet door 2 and inside the movable door 8. A back panel 3 is movably installed on the back of the cabinet body 1. An exhaust fan 4 is installed at the top inside the cabinet body 1. The adjustment mechanism includes two connecting plates 10 and several sliding plates 11. The two connecting plates 10 are fixedly connected to the bottom surface of the movable door 8. The several sliding plates 11 are slidably connected to the bottom surface of the support plates 6, and the upper end of the sliding plates 11 is fixedly connected to the partition plates 9. Several cooling fans 12 are installed between the outer walls of the two connecting plates 10 and below the support plates 6.
[0033] A filter screen is fixedly installed above the exhaust fan 4 to prevent external dust from entering the exhaust fan 4 and affecting its normal operation.
[0034] A connecting shaft 15 is rotatably connected to the outer side wall of the slide plate 11 near the bottom. A movable plate 13 is fixedly connected to the outer wall of the connecting shaft 15 and inside the slide plate 11. A mounting plate is fixedly connected to the outer side wall of the slide plate 11. A connecting rod 18 is fixedly connected to the bottom surface of the mounting plate. A plug rod 5 is inserted inside the connecting rod 18. A return spring is installed between the upper end of the plug rod 5 and the top end inside the connecting rod 18.
[0035] A plug plate 17 is fixedly connected to the bottom end of the plug rod 5, and a circular plate 16 is fixedly connected to one end of the connecting shaft 15. The outer wall of the circular plate 16 has a slot, which fits into the plug plate 17. The outer wall of the connecting plate 10 has several slots 14, which fit into one end of the movable plate 13. Moving the circular plate 16 drives the connecting shaft 15 to rotate, thereby driving the movable plate 13 to rotate, so that one end of the movable plate 13 is inserted into the corresponding slot 14. Under the action of the return spring, the plug plate 17 moves down and is inserted into the slot, which can fix the position of the circular plate 16.
[0036] In use, electrical components are installed on the upper surfaces of two support plates 6 inside the cabinet 1. The distance between each partition plate 9 can be adjusted according to the size of the motor component to be installed, dividing the installation space into suitable sizes to accommodate electrical components of different sizes. This allows for well-organized and separated installation of the electrical components mounted on the support plates 6. Before moving the partition plates 9, the insert plate 17 is first moved upwards and out of the slot. The insert rod 5 follows the insert plate 17 upwards and moves into the connecting rod 18, compressing the return spring. Then, the movable plate 13 is rotated, allowing the movable plate to return to its original position. One end of the movable plate 13 rotates out of the slot 14. At this time, the partition plate 9 can be moved. The slide plate 11 slides with the partition plate 9. After adjusting the position of the partition plate 9, rotate the circular plate 16 to drive the connecting shaft 15 to rotate, thereby driving the movable plate 13 to rotate. This causes one end of the movable plate 13 to be inserted into the corresponding slot 14. Then release the insert plate 17. Under the action of the return spring, the insert plate 17 moves down and re-inserts into the slot, fixing the position of the circular plate 16. This fixes the positions of the connecting shaft 15 and the movable plate 13, thereby fixing the positions of the bearing plate 6 and the partition plate 9.
[0037] By installing the electrical components in separate areas, the installation becomes neater, and there is also space for heat dissipation between the components. The cooling fans 12 blow air under the support plate 6 to cool the components, and the heat dissipation grooves 25 on the support plate 6 provide air circulation, making the air circulation inside the cabinet 1 better. In conjunction with the exhaust fan 4, the hot air inside the cabinet 1 is continuously discharged, which can effectively remove the heat from the cabinet 1 and improve the heat dissipation effect of the low-voltage switchgear.
[0038] Several fixing blocks 24 are fixedly connected to both outer walls of the back panel 3. Fixing bolts are inserted into the outer walls of the fixing blocks 24. Several screw grooves are opened on both outer walls of the cabinet body 1, and the screw grooves fit with the fixing bolts.
[0039] When installing various electrical components, the back panel 3 can be removed from the cabinet 1, providing more operating space for adjusting and fixing the partition 9 and installing electrical components. After installation, the back panel 3 can be installed back onto the cabinet 1. During installation, the fixing bolts are inserted into the screw grooves by rotating them through the fixing block 24 to fix the fixing block 24 onto the cabinet 1, thereby fixing the back panel 3 onto the cabinet 1.
[0040] like Figures 7-9 As shown, the cable management mechanism includes a support frame 19. Several movable plates 21 are slidably connected to the two inner side walls of the support frame 19. Two arc-shaped clamps 20 are slidably connected between the outer walls of the two movable plates 21, and the two arc-shaped clamps 20 cooperate with each other. Magnet blocks 23 are fixedly connected to both ends of the two arc-shaped clamps 20, and the two magnet blocks 23 cooperate with each other. Under the action of magnetic attraction, the two magnet blocks 23 attract each other, so that the positions of the two arc-shaped clamps 20 are fixed to each other.
[0041] The upper surface of the movable plate 21 has several through holes, and a fixing nail 22 is inserted into the through holes. The upper surface of the movable plate 21 has a fixing hole, and the fixing hole and the fixing nail 22 are matched. The fixing nail 22 is inserted into the fixing hole through the corresponding through hole to fix the position of the movable plate 21, thereby fixing the position of the arc-shaped clamp 20.
[0042] Specifically, the electrical control components that need to be installed on the cabinet door 2 can be installed on the outer wall of the cabinet door 2 and inside the protective shell 7. This protects the electrical control components installed on the cabinet door 2 by separating them from the movable door 8, preventing accidental contact with the electrical components inside the cabinet 1. The wires of the electrical control components can be threaded between the two arc-shaped clamps 20 and attracted by the magnetic force of the two magnets 23, fixing the position of the two arc-shaped clamps 20 and holding the wires in place. The position of the arc-shaped clamps 20 can be adjusted by moving the movable plate 21 to accommodate different wire insertion positions. After adjustment, the fixing nails 22 can be inserted through the corresponding holes to fix the position of the movable plate 21, thereby fixing the position of the arc-shaped clamps 20. This ensures that the wires of the electrical control components are neatly arranged and fixed, avoiding mess and preventing accidental contact with the electrical components inside the cabinet 1 caused by the scattered wires.
[0043] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.
Claims
1. A low-voltage switchgear, comprising a cabinet (1), characterized in that, The front surface of the cabinet (1) is connected to a cabinet door (2) by a hinge. The cabinet (1) has two support plates (6) fixedly installed inside. The upper surfaces of the two support plates (6) are provided with several heat dissipation grooves (25). The upper ends of the two support plates (6) are slidably connected with several partition plates (9). The bottom surface of the support plates (6) is provided with an adjustment mechanism. The outer wall of the cabinet door (2) is fixedly connected with a protective shell (7). The protective shell (7) is connected to a movable door (8) by a hinge near one side. The outer wall of the cabinet door (2) and the position inside the movable door (8) are provided with several cable management mechanisms. The back panel (3) is movably installed on the back of the cabinet (1). The top of the cabinet (1) is equipped with an exhaust fan (4). The adjustment mechanism includes two connecting plates (10) and several sliding plates (11). The two connecting plates (10) are fixedly connected to the bottom surface of the movable door (8), and the several sliding plates (11) are slidably connected to the bottom surface of the support plate (6). The upper end of the sliding plate (11) is fixedly connected to the partition plate (9). Several cooling fans (12) are installed between the outer walls of the two connecting plates (10) and below the support plate (6).
2. A low-voltage switchgear according to claim 1, characterized in that, The outer wall of the slide plate (11) is rotatably connected to a connecting shaft (15) near the bottom end, and a movable plate (13) is fixedly connected to the outer wall of the connecting shaft (15) and inside the slide plate (11).
3. A low-voltage switchgear according to claim 2, characterized in that, An installation plate is fixedly connected to the outer wall of the slide plate (11), and a connecting rod (18) is fixedly connected to the bottom surface of the installation plate. A plug rod (5) is inserted inside the connecting rod (18), and a return spring is installed between the upper end of the plug rod (5) and the top end inside the connecting rod (18).
4. A low-voltage switchgear according to claim 3, characterized in that, The bottom end of the insertion rod (5) is fixedly connected to the insertion plate (17), and one end of the connecting shaft (15) is fixedly connected to the circular plate (16). The outer wall of the circular plate (16) is provided with a slot, and the slot fits into the insertion plate (17).
5. A low-voltage switchgear according to claim 2, characterized in that, The outer wall of the connecting plate (10) is provided with a plurality of slots (14), and the slots (14) are fitted with one end of the movable plate (13).
6. A low-voltage switchgear according to claim 1, characterized in that, The cable management mechanism includes a support frame (19), on which several movable plates (21) are slidably connected to the two inner side walls. Two arc-shaped clamps (20) are slidably connected between the outer walls of the two movable plates (21), and the two arc-shaped clamps (20) cooperate with each other. Magnet blocks (23) are fixedly connected to both ends of the two arc-shaped clamps (20), and the two magnet blocks (23) cooperate with each other.
7. A low-voltage switchgear according to claim 6, characterized in that, The upper surface of the movable plate (21) has several through holes, and a fixing nail (22) is inserted inside the holes. The upper surface of the movable plate (21) has fixing holes, and the fixing holes are matched with the fixing nails (22).
8. A low-voltage switchgear according to claim 1, characterized in that, The back panel (3) has several fixing blocks (24) fixedly connected to both outer side walls. The outer side walls of the fixing blocks (24) are each fitted with fixing bolts. The cabinet (1) has several screw grooves on both outer side walls, and the screw grooves fit with the fixing bolts.
Citation Information
Patent Citations
Low-voltage complete switch cabinet
CN221353538U