Low-voltage power distribution cabinet with real-time monitoring device
By introducing temperature monitoring sensors and electromagnet-driven cooling fans into low-voltage distribution cabinets, the problems of monitoring lag and energy consumption in traditional low-voltage distribution cabinets are solved, achieving real-time automated heat dissipation and energy-saving effects.
Patent Information
- Application Number
- CN202522376386.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-10
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-11-10
AI Technical Summary
Traditional low-voltage distribution cabinets rely on manual inspection and monitoring, which has a strong monitoring lag, leading to overheating of components and easy failure. In addition, the constant-flow heat dissipation is energy-consuming and not energy-efficient.
Temperature monitoring sensors are used to monitor the temperature inside the distribution cabinet in real time, and electromagnets are used to drive the cooling fan to start and stop, thereby achieving automated heat dissipation control.
It enables real-time monitoring and automated heat dissipation of the temperature inside the power distribution cabinet, avoiding overheating failures of components and saving energy consumption.
Smart Images

Figure CN224935253U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of power distribution cabinet technology, specifically to a low-voltage power distribution cabinet with a real-time monitoring device. Background Technology
[0002] Low-voltage distribution cabinets are the core equipment of power distribution systems, used to distribute electrical energy and protect circuits. Traditional distribution cabinets mostly rely on manual inspection and temperature monitoring, which has a strong monitoring lag. When internal components heat up due to excessive load, the optimal time for heat dissipation is easily missed, causing the cabinet temperature to exceed the safe limit of the components, resulting in failures such as insulation aging and contact burnout. Some distribution cabinets with heat dissipation functions use "constantly running heat dissipation" (fans or heat sinks work continuously), which continues to consume energy even when the cabinet temperature is within the safe range, failing to meet energy-saving requirements. Utility Model Content
[0003] In view of the problems existing in the current low-voltage distribution cabinet with real-time monitoring device, this utility model is proposed.
[0004] Therefore, the purpose of this utility model is to provide a low-voltage distribution cabinet with a real-time monitoring device, which solves the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A low-voltage distribution cabinet with a real-time monitoring device includes a cabinet body and a temperature monitoring sensor. The temperature monitoring sensor is fixedly installed in the middle of the cabinet body. A cooling fan is installed below the cabinet body. A start switch is fixedly installed on one side of the upper surface of the cooling fan, and a stop switch is installed on the other side of the lower surface of the cooling fan. A transmission mechanism for moving the cooling fan is installed at the bottom of the cabinet body. A reset mechanism for moving the cooling fan downward is installed on both sides of the middle of the cabinet body. A fixing block is fixedly installed on the inner wall of the cabinet body above the start switch. A first pressure rod is fixedly installed on the lower side of the fixing block. A second pressure rod is fixedly installed on the inner wall of the bottom end of the cabinet body below the stop switch.
[0007] Preferably, the transmission mechanism includes an iron block and an electromagnet. A crossbar is fixedly installed on the inner wall of one side of the lower end of the main body of the distribution cabinet. The electromagnet is fixedly installed at the end of the crossbar away from the main body of the distribution cabinet. The iron block is slidably installed on the wall of the crossbar. A rotating bar is installed above the iron block. A connecting block is fixedly installed in the middle of the lower side of the cooling fan. Both ends of the rotating bar are rotatably connected to the corresponding connecting block and iron block through axle pins.
[0008] Preferably, the reset mechanism includes a support block and a reset block. The support block is fixedly installed on the inner wall of the middle section of the main body of the distribution cabinet. A reset rod is movably sleeved inside the support block. The reset block is fixedly installed at the lower end of the reset rod. One side of the reset block is fixedly connected to a cooling fan. A spring is movably sleeved on the wall of the reset rod. The two ends of the spring are fixedly connected to the corresponding support block and the reset block, respectively.
[0009] Preferably, an anti-detachment block is fixedly provided at the top end of the reset rod.
[0010] Preferably, the longitudinal section of the crossbar is rectangular.
[0011] Preferably, both the first pressure bar and the second pressure bar are rubber rods.
[0012] The technical effects and advantages provided by this utility model in the above technical solution are as follows:
[0013] 1. This utility model uses a temperature monitoring sensor to monitor the stability of the main body of the power distribution cabinet in real time. When the temperature is higher than the set value, the power supply of the electromagnet is turned on, and the electromagnet magnetically attracts the iron block, causing the rotating bar to rotate towards verticality, which pushes the cooling fan downwards. This causes the first pressure rod to press the start switch, which in turn starts the cooling fan to dissipate heat from the inside of the power distribution cabinet.
[0014] 2. In this utility model, when the internal temperature of the main body of the power distribution cabinet drops to a set value, the electromagnet disconnects the power supply, the spring pushes the reset block to move down and reset, so that the cooling fan moves down and resets. The second pressure rod presses the stop switch, which can turn off the cooling fan and achieve the effect of saving energy. Attached Figure Description
[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.
[0016] Figure 1 This is a schematic diagram of the structure of a low-voltage distribution cabinet with a real-time monitoring device proposed in this utility model;
[0017] Figure 2 for Figure 1 Enlarged structural diagram of part A in the middle section;
[0018] Figure 3 for Figure 2 A 3D view of the iron block.
[0019] Explanation of reference numerals in the attached figures:
[0020] 1. Main body of the distribution cabinet; 2. Cooling fan; 3. Reset block; 4. Anti-detachment block; 5. Support block; 6. Reset rod; 7. Spring; 8. Stop switch; 9. Second pressure rod; 10. First pressure rod; 11. Fixing block; 12. Shaft pin; 13. Rotating bar; 14. Iron block; 15. Electromagnet; 16. Crossbar; 17. Start switch; 18. Temperature monitoring sensor. Detailed Implementation
[0021] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.
[0022] This utility model discloses a low-voltage distribution cabinet with a real-time monitoring device.
[0023] Example 1
[0024] Reference Figure 1-3 A low-voltage distribution cabinet with a real-time monitoring device includes a cabinet body 1 and a temperature monitoring sensor 18. The temperature monitoring sensor 18 is fixedly installed in the middle of the cabinet body 1. A cooling fan 2 is installed below the cabinet body 1. A start switch 17 is fixedly installed on one side of the upper surface of the cooling fan 2, and a stop switch 8 is installed on the other side of the lower surface of the cooling fan 2. A transmission mechanism for moving the cooling fan 2 is installed at the bottom of the cabinet body 1. A reset mechanism for moving the cooling fan 2 downward is installed on both sides of the middle of the cabinet body 1. A fixing block 11 is fixedly installed on the inner wall of the cabinet body 1 above the start switch 17. A first pressure rod 10 is fixedly installed on the lower side of the fixing block 11. A second pressure rod 9 is fixedly installed on the inner wall of the bottom end of the cabinet body 1 below the stop switch 8. Both the first pressure rod 10 and the second pressure rod 9 are rubber rods to prevent damage to the start switch 17 and the stop switch 8.
[0025] Example 2
[0026] Reference Figure 1-3 The transmission mechanism includes an iron block 14 and an electromagnet 15. A crossbar 16 is fixedly installed on the inner wall of one side of the lower end of the distribution cabinet body 1. The electromagnet 15 is fixedly installed at the end of the crossbar 16 away from the distribution cabinet body 1. The iron block 14 is slidably installed on the bar wall of the crossbar 16. A rotating bar 13 is installed above the iron block 14. A connecting block is fixedly installed in the middle of the lower side of the cooling fan 2. Both ends of the rotating bar 13 are rotatably connected to the corresponding connecting block and the iron block 14 through the shaft pin 12. The longitudinal section of the crossbar 16 is rectangular, which allows the iron block 14 to slide stably.
[0027] Example 3
[0028] Reference Figure 1-3The reset mechanism includes a support block 5 and a reset block 3. The support block 5 is fixedly installed on the inner wall of the middle section of the main body 1 of the distribution cabinet. A reset rod 6 is movably sleeved inside the support block 5. The reset block 3 is fixedly installed at the lower end of the reset rod 6. One side of the reset block 3 is fixedly connected to the cooling fan 2. A spring 7 is movably sleeved on the rod wall of the reset rod 6. The two ends of the spring 7 are fixedly connected to the corresponding support block 5 and reset block 3 respectively. An anti-detachment block 4 is fixedly installed at the top of the reset rod 6 to prevent the reset rod 6 from slipping out of the support block 5 as much as possible.
[0029] In this invention, the temperature monitoring sensor 18 is first connected to the control circuit inside the main body 1 of the distribution cabinet. When the internal components of the main body 1 of the distribution cabinet generate heat, and the temperature monitoring sensor 18 detects that the temperature has risen to the set value, the control circuit automatically turns on the power supply of the electromagnet 15. The electromagnet generates magnetic attraction to the iron block 14 on the crossbar 16. The iron block slides along the rectangular crossbar 16 toward the electromagnet, pulling the rotating bar 13 to rotate through the shaft pin 12. The end of the rotating bar away from the iron block pushes the connecting block on the lower side of the cooling fan 2 upward, causing the cooling fan to move upward as a whole. During the upward movement of the cooling fan, the start switch 17 on its surface gradually approaches the first pressure rod 10 on the lower side of the fixed block 11. When the cooling fan moves upward to the preset position, the first pressure rod 10 squeezes the start switch 17, triggering the cooling fan to start and blowing air to cool the inside of the main body 1 of the distribution cabinet. At the same time, the upward movement of the cooling fan drives the two sides The reset block 3 moves upward synchronously, pulling the reset rod 6 upward along the support block 5. The spring 7 on the wall of the reset rod is compressed and stores elastic potential energy. The anti-detachment block 4 at the top of the reset rod prevents the reset rod from slipping out of the support block. As the cooling fan continues to work, the internal temperature of the main body 1 of the distribution cabinet gradually decreases. When the temperature monitoring sensor 18 detects that the temperature has dropped to the set value, the control circuit disconnects the power supply to the electromagnet 15. The electromagnet loses its magnetism, the spring 7 releases elastic potential energy, and pushes the reset block 3 downward. The reset block drives the cooling fan 2 to move downward synchronously to reset. During the downward movement of the cooling fan, the stop switch 8 on its lower surface gradually approaches the second pressure rod 9 on the inner wall of the bottom of the main body of the distribution cabinet. When the cooling fan moves to the initial position, the second pressure rod 9 squeezes the stop switch 8, causing the cooling fan to stop working. This ensures that the internal temperature of the distribution cabinet is stable and avoids energy waste caused by the continuous operation of the cooling fan.
[0030] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.
Claims
1. A low-voltage distribution cabinet with a real-time monitoring device, comprising a distribution cabinet body (1) and a temperature monitoring sensor (18), characterized in that, The temperature monitoring sensor (18) is fixedly installed in the middle of the main body (1) of the power distribution cabinet. A cooling fan (2) is installed below the main body (1). A start switch (17) is fixedly installed on one side of the upper surface of the cooling fan (2). A stop switch (8) is installed on the other side of the lower surface of the cooling fan (2). A transmission mechanism for moving the cooling fan (2) is installed at the bottom of the main body (1). A reset mechanism for moving the cooling fan (2) downward is installed on both sides of the middle part of the main body (1). A fixing block (11) is fixedly installed on the inner wall of the main body (1) above the start switch (17). A first pressure rod (10) is fixedly installed on the lower side of the fixing block (11). A second pressure rod (9) is fixedly installed on the inner wall of the bottom end of the main body (1) below the stop switch (8).
2. The low-voltage distribution cabinet with real-time monitoring device according to claim 1, characterized in that, The transmission mechanism includes an iron block (14) and an electromagnet (15). A crossbar (16) is fixedly installed on the inner wall of the lower end of the main body (1) of the power distribution cabinet. The electromagnet (15) is fixedly installed at the end of the crossbar (16) away from the main body (1) of the power distribution cabinet. The iron block (14) is slidably installed on the wall of the crossbar (16). A rotating bar (13) is installed above the iron block (14). A connecting block is fixedly installed in the middle of the lower side of the cooling fan (2). Both ends of the rotating bar (13) are rotatably connected to the corresponding connecting block and the iron block (14) through a shaft pin (12).
3. The low-voltage distribution cabinet with real-time monitoring device according to claim 1, characterized in that, The reset mechanism includes a support block (5) and a reset block (3). The support block (5) is fixedly installed on the inner wall of the middle section of the main body (1) of the power distribution cabinet. A reset rod (6) is movably sleeved inside the support block (5). The reset block (3) is fixedly installed at the lower end of the reset rod (6). One side of the reset block (3) is fixedly connected to the cooling fan (2). A spring (7) is movably sleeved on the rod wall of the reset rod (6). The two ends of the spring (7) are fixedly connected to the corresponding support block (5) and reset block (3) respectively.
4. The low-voltage distribution cabinet with real-time monitoring device according to claim 3, characterized in that, An anti-detachment block (4) is fixedly installed at the top of the reset rod (6).
5. The low-voltage distribution cabinet with real-time monitoring device according to claim 2, characterized in that, The longitudinal section of the crossbar (16) is rectangular.
6. The low-voltage distribution cabinet with real-time monitoring device according to claim 1, characterized in that, Both the first pressure bar (10) and the second pressure bar (9) are rubber rods.
