Low-voltage switch cabinet with good protection performance
By using a motor-driven protective cover lifting system and gear transmission, combined with a guiding and heat dissipation shielding mechanism, the problems of insufficient protection performance and inconvenient maintenance of low-voltage switchgear are solved, and the safe and stable operation and efficient maintenance of the equipment are realized.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GAOYUAN (SHANDONG) ELECTROMECHANICAL EQUIP CO LTD
- Filing Date
- 2025-04-28
- Publication Date
- 2026-06-16
AI Technical Summary
Traditional low-voltage switchgear has limitations in terms of protection performance, making it difficult to effectively protect internal electrical components. It is also subject to high risks of external collisions and foreign object intrusion, making maintenance and repair inconvenient and requiring a lot of manpower and time.
The protective cover lifting system, driven by a motor, combined with gear transmission and a guide mechanism, enables convenient lifting and lowering of the protective cover. It is equipped with heat dissipation and shielding mechanisms to provide all-round protection and convenient maintenance.
It improves the safety and stability of equipment operation, reduces the risk of damage from external physical factors, simplifies maintenance and repair processes, saves manpower and time, and improves work efficiency.
Smart Images

Figure CN224367386U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of power technology, specifically to a low-voltage switchgear with good protection performance. Background Technology
[0002] In modern power systems, low-voltage switchgear, as an important power distribution device, is widely used in various industrial sites, commercial buildings, and residential communities. Traditional low-voltage switchgear has certain limitations in terms of protection performance. Its protective structure cannot provide comprehensive and effective protection for internal electrical components under normal conditions. External collisions and intrusion of foreign objects frequently occur, greatly increasing the risk of equipment damage due to external physical factors. This, in turn, affects the safety and stability of equipment operation and poses a potential threat to the reliable power supply of the power system.
[0003] Furthermore, traditional low-voltage switchgear faces numerous challenges in equipment maintenance and repair. Due to the lack of a convenient protective cover lifting system, personnel often need to expend significant manpower and time disassembling and installing protective devices to expose the internal equipment for operation. This is not only inefficient but also makes maintenance difficult. To improve this situation and enhance the protective performance and ease of maintenance of low-voltage switchgear, developing a new type of low-voltage switchgear with a robust protective structure and a motor-driven protective cover lifting system is of significant practical importance. Utility Model Content
[0004] (a) Technical problems to be solved
[0005] To address the shortcomings of existing technologies, this utility model provides a low-voltage switchgear with good protection performance, thereby solving the problems of the prior art mentioned in the background section.
[0006] (II) Technical Solution
[0007] To achieve the above objectives, this utility model provides the following technical solution: a low-voltage switchgear with good protection performance, including a base, and further comprising:
[0008] The protective mechanism includes a protective cover, a support plate slidably connected inside the protective cover, the support plate being fixedly connected to the base, a clearance groove being provided on the support plate, a motor being installed on the clearance groove, the motor being mounted on the protective cover, a first bevel gear being connected to the output end of the motor, a rotating rod being rotatably connected inside the protective cover, a second bevel gear being sleeved on the rotating rod, the second bevel gear meshing with the first bevel gear, a plurality of first gears being fixedly sleeved on the rotating rod, and a plurality of protrusions being fixedly connected to the support plate, the plurality of protrusions meshing with two first gears;
[0009] The guiding mechanism is used to guide the protective cover.
[0010] A shielding mechanism is used to protect the top of the protective cover;
[0011] The heat dissipation mechanism is used to dissipate heat from the inside of the protective cover.
[0012] Optionally, the guiding mechanism includes multiple guide sleeves, which are fixedly connected to the protective cover. A guide plate is slidably connected inside the guide sleeve, and the guide plate is fixedly connected to the base.
[0013] Optionally, the shielding mechanism includes a shielding plate, and a plurality of support pillars are fixedly connected to the bottom end of the shielding plate, the support pillars being fixedly connected to the protective cover.
[0014] Optionally, the heat dissipation mechanism includes a fan, which is mounted on the protective cover and the input end of the fan is connected to the protective cover. The protective cover has an air inlet and a filter screen is installed on the air inlet.
[0015] Optionally, the support plate is provided with a guide groove, and a guide strip is slidably connected in the guide groove. The guide strip is fixedly connected to the inner wall of the protective cover.
[0016] Optionally, the protective cover has an observation port, and a door panel is hinged to the observation port.
[0017] (III) Beneficial Effects
[0018] In summary, this utility model has at least one of the following beneficial technical effects:
[0019] This high-performance low-voltage switchgear features a robust protective structure. Under normal conditions, the protective cover provides comprehensive protection for internal electrical components, effectively resisting potential external impacts and foreign object intrusion. This reduces the risk of equipment damage due to external physical factors, significantly improving the safety and stability of equipment operation and ensuring reliable power supply to the power system. The motor-driven lifting system of the protective cover simplifies internal equipment maintenance and repair. Through a motor-driven gear transmission, the protective cover rises easily, fully exposing the internal equipment for easy operation by staff. After maintenance or repair, it can quickly descend to restore the protective state, greatly saving manpower and time costs, improving work efficiency, and reducing maintenance difficulty. Attached Figure Description
[0020] Figure 1 This is a cross-sectional structural diagram of the disassembled present invention;
[0021] Figure 2 This utility model Figure 1 A magnified schematic diagram of the local structure at point A;
[0022] Figure 3 This utility model Figure 1A magnified view of the structure at point B in the middle;
[0023] Figure 4 This is a schematic diagram of the overall structure of this utility model.
[0024] In the diagram: 1. Base; 2. Protective cover; 3. Support plate; 4. Motor; 5. First bevel gear; 6. Rotating rod; 7. Second bevel gear; 8. First gear; 9. Protrusion; 10. Guide sleeve; 11. Guide plate; 12. Baffle plate; 13. Support column; 14. Fan; 15. Filter screen; 16. Guide strip; 17. Door panel. Detailed Implementation
[0025] 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.
[0026] The present invention will be further described in detail below with reference to the accompanying drawings.
[0027] Reference Figures 1-4 A low-voltage switchgear with good protection performance includes a base 1, and also includes:
[0028] The protective mechanism includes a protective cover 2, a support plate 3 slidably connected inside the protective cover 2, and a fixed connection between the support plate 3 and the base 1. A clearance groove is provided on the support plate 3, and a motor 4 is installed on the clearance groove. The motor 4 is mounted on the protective cover 2, and a first bevel gear 5 is connected to the output end of the motor 4. A rotating rod 6 is rotatably connected inside the protective cover 2, and a second bevel gear 7 is fitted on the rotating rod 6, meshing with the first bevel gear 5. Multiple first gears 8 are fixedly fitted on the rotating rod 6. Multiple protrusions 9 are fixedly connected to the support plate 3, meshing with two of the first gears 8. The protective mechanism drives the first bevel gear 5 through the motor 4, which in turn drives the second bevel gear 7 and the rotating rod 6 to rotate. The first gears 8 on the rotating rod 6 mesh with the protrusions 9 on the support plate 3, realizing the raising and lowering of the protective cover 2. The protective range can be flexibly adjusted. When the equipment needs maintenance or repair, the protective cover 2 can be easily opened, while providing good protection during normal operation, effectively preventing interference and damage to internal electrical components from external foreign objects.
[0029] The guiding mechanism is used to guide the protective cover 2; it provides stable guidance for the movement of the protective cover 2, ensures that the protective cover 2 remains stable during the lifting and lowering process, avoids deviation, jamming and other situations, ensures the normal operation of the protective mechanism, and improves the reliability of the overall protective performance.
[0030] The shielding mechanism is used to protect the top of the protective cover 2; providing additional protection to the top of the protective cover 2 can prevent falling objects from damaging the protective cover 2 and the internal equipment, enhancing the comprehensiveness of protection and reducing the risk of equipment failure due to external impacts on the top.
[0031] The heat dissipation mechanism is used to dissipate heat from the inside of the protective cover 2, which effectively solves the problem of heat generated by the operation of electrical components inside the low-voltage switchgear, ensures that the equipment operates at a suitable temperature, avoids the degradation of component performance, shortening of life or even failure caused by overheating, and improves the stability and reliability of equipment operation.
[0032] It should also be noted that the guiding mechanism includes multiple guide sleeves 10, which are fixedly connected to the protective cover 2. A guide plate 11 is slidably connected inside the guide sleeve 10, and the guide plate 11 is fixedly connected to the base 1. The cooperation between the guide sleeve 10 and the guide plate 11 results in a simple structure and good guiding effect, accurately guiding the protective cover 2 to rise and fall in a predetermined direction, further enhancing the accuracy and stability of the guidance and providing strong support for the normal operation of the protective mechanism. The shielding mechanism includes a shielding plate 12, with multiple support pillars 13 fixedly connected to the bottom end of the shielding plate 12. The support pillars 13 are fixedly connected to the protective cover 2. The shielding plate 12 is connected to the protective cover 2 through the support pillars 13, ensuring a secure installation and effectively blocking dust, rainwater, and small foreign objects from above, providing comprehensive protection for the internal equipment of the protective cover 2 and extending its service life. The heat dissipation mechanism includes a fan 14, which is installed on the protective cover 2, with its input end connected to the protective cover 2. The protective cover 2 has an air inlet. A filter screen 15 is installed on the air vent. The fan 14 actively draws out the hot air inside the protective cover 2. The filter screen 15 at the air inlet can prevent external dust and other impurities from entering, which not only ensures good heat dissipation but also maintains a clean internal operating environment, helping to improve the overall performance and reliability of the equipment. A guide groove is provided on the support plate 3, and a guide strip 16 is slidably connected in the guide groove. The guide strip 16 is fixedly connected to the inner wall of the protective cover 2. The cooperation between the guide groove and the guide strip 16 further optimizes the lifting and lowering guidance of the protective cover 2, making the protective cover 2 more stable and smooth during movement, reducing shaking and friction, and improving the operating accuracy and stability of the protective mechanism. An observation port is provided on the protective cover 2, and a door panel 17 is hinged to the observation port, which allows the staff to observe the operating status of the internal equipment at any time without opening the protective cover 2, making it easier to detect potential problems in time and improve the efficiency of equipment maintenance and management. At the same time, the observation port door panel 17 can still maintain the protective effect when closed.
[0033] In summary, the working principle and process of this well-protected low-voltage switchgear are as follows: First, the device is installed in the required location. When the low-voltage switchgear starts operating, the electrical components generate heat, and the heat dissipation mechanism begins to function. The fan 14 starts, actively drawing hot air out of the protective cover 2. Outside air enters through the air inlet, and the filter 15 at the air inlet effectively blocks external dust and other impurities, ensuring a clean internal operating environment and allowing the equipment to operate stably at a suitable temperature. During this period, personnel can observe the operating status of the internal equipment at any time through the observation port door 17. To promptly identify potential problems, when maintenance or repair of the internal equipment of the low-voltage switchgear is required, the motor 4 is started. The motor 4 drives the first bevel gear 5 to rotate, which in turn drives the second bevel gear 7 to rotate, thereby causing the rotating rod 6 to rotate. The first gear 8 on the rotating rod 6 meshes with the protrusion 9 on the support plate 3, thereby raising the protective cover 2. As the protective cover 2 rises, the internal equipment is gradually exposed, making it convenient for staff to carry out maintenance and repair operations. After the maintenance or repair work is completed, the motor 4 is started again to lower the protective cover 2 and restore it to its initial fully covered state.
[0034] The above embodiments merely illustrate specific implementations of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model.
Claims
1. A low-voltage switchgear with good protection performance, comprising a base (1), characterized in that: Also includes: The protective mechanism includes a protective cover (2), a support plate (3) is slidably connected inside the protective cover (2), the support plate (3) is fixedly connected to the base (1), a clearance groove is provided on the support plate (3), a motor (4) is provided on the clearance groove, the motor (4) is installed on the protective cover (2), the output end of the motor (4) is connected to a first bevel gear (5), a rotating rod (6) is rotatably connected inside the protective cover (2), a second bevel gear (7) is sleeved on the rotating rod (6), the second bevel gear (7) meshes with the first bevel gear (5), a plurality of first gears (8) are fixedly sleeved on the rotating rod (6), a plurality of protrusions (9) are fixedly connected on the support plate (3), and the plurality of protrusions (9) mesh with two first gears (8); A guiding mechanism is used to guide the protective cover (2); A shielding mechanism is used to protect the top of the protective cover (2); The heat dissipation mechanism is used to dissipate heat from the inside of the protective cover (2).
2. The low-voltage switchgear with good protection performance according to claim 1, characterized in that: The guiding mechanism includes multiple guide sleeves (10), the guide sleeves (10) are fixedly connected to the protective cover (2), and a guide plate (11) is slidably connected inside the guide sleeves (10), and the guide plate (11) is fixedly connected to the base (1).
3. A low-voltage switchgear with good protection performance according to claim 2, characterized in that: The shielding mechanism includes a shielding plate (12), and a plurality of support columns (13) are fixedly connected to the bottom end of the shielding plate (12). The support columns (13) are fixedly connected to the protective cover (2).
4. A low-voltage switchgear with good protection performance according to claim 3, characterized in that: The heat dissipation mechanism includes a fan (14), which is installed on the protective cover (2) and the input end of the fan (14) is connected to the protective cover (2). The protective cover (2) has an air inlet and a filter screen (15) is installed on the air inlet.
5. A low-voltage switchgear with good protection performance according to claim 4, characterized in that: The support plate (3) is provided with a guide groove, and a guide strip (16) is slidably connected in the guide groove. The guide strip (16) is fixedly connected to the inner wall of the protective cover (2).
6. A low-voltage switchgear with good protection performance according to claim 5, characterized in that: An observation port is provided on the protective cover (2), and a door panel (17) is hinged to the observation port.