Water-accumulation-preventing high-voltage switch cabinet
By introducing a water accumulation warning mechanism into the high-voltage switchgear, and using ultrasonic sensors to measure the water level and adjust the switchgear position, the problem of water penetration is solved, achieving efficient waterproof warning and protection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Filing Date
- 2025-06-06
- Publication Date
- 2026-07-10
AI Technical Summary
Existing high-voltage switchgear is prone to moisture ingress into the cabinet in humid environments, leading to equipment corrosion and electrical failures. Existing devices cannot effectively prevent moisture penetration or provide early warning.
A flood prevention and early warning mechanism was designed, including an ultrasonic sensor, a drive motor, a gear belt, and a lead screw mechanism. It measures the water level by ultrasonic waves and automatically alarms when the water level exceeds the standard. The lead screw mechanism adjusts the position of the switch cabinet to prevent water ingress. Combined with a controller and a battery, it achieves dynamic protection.
It enables early warning and dynamic position adjustment of high-voltage switchgear, preventing water ingress into the equipment and improving safety and equipment lifespan.
Smart Images

Figure CN224481371U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of high-voltage switchgear technology, specifically a high-voltage switchgear that is resistant to water accumulation. Background Technology
[0002] High-voltage switchgear, as an important component of power systems, is widely used for the protection, control, and switching operations of various electrical equipment. However, long-term exposure to humid or rainy environments can easily lead to moisture entering the cabinet, causing corrosion of equipment components, deterioration of insulation performance, and even electrical faults. Therefore, in existing technologies, how to effectively prevent moisture from entering the switchgear and accumulating inside has become an urgent problem to be solved.
[0003] The existing utility model with authorization announcement number CN217720288U discloses a high-voltage switch cabinet that prevents water accumulation, including a cabinet body, a flow guide block installed on the inner wall of the cabinet body, a flow guide groove opened on one side of the flow guide block and on the outer wall of the cabinet body, a hinge installed at the port of the cabinet body, a cabinet door installed at one end of the hinge, a controller installed on the side wall of the cabinet body, a cooling fan installed on the inner wall of the cabinet body, and a guide rail installed on one side of the cooling fan and on the inner wall of the cabinet body.
[0004] Although the above-mentioned technical solution can effectively prevent water accumulation by using a cooling fan to generate airflow from top to bottom, blowing water vapor inside the cabinet onto the outer wall of the guide block (made of aluminum alloy), and water vapor condensing into water droplets that flow out from the guide channel along the slope, and the controller controlling the air pump to generate high-pressure airflow when the rain sensor detects rain, thus creating airflow on the outer wall of the cabinet to blow away the rainwater, the above-mentioned technical solution can only guide rainwater inside the cabinet. When there is too much rainwater, it seeps into the cabinet through the bottom or gaps, and the device fails to adjust or warn the electrical components inside the cabinet, thus reducing the effectiveness and efficiency of the device.
[0005] Therefore, those skilled in the art have provided a high-voltage switchgear that prevents water accumulation to solve the problems mentioned in the background art. Utility Model Content
[0006] The purpose of this utility model is to provide a high-voltage switchgear that is resistant to water accumulation, so as to solve the problems mentioned in the background art.
[0007] To achieve the above objectives, this utility model provides the following technical solution:
[0008] A high-voltage switchgear with anti-water accumulation protection includes a support frame, with an anti-water accumulation warning mechanism installed on top of the support frame. The anti-water accumulation warning mechanism includes a protective cover, a protective box fixedly connected to the bottom surface of the protective cover, a sealing door hinged to the protective box, and the bottom surface of the protective box fixedly connected to the upper surface of the support frame. A high-voltage switchgear body is housed inside the protective box, and a controller body is fixedly connected to the upper surface of the high-voltage switchgear body. Two fixed brackets are fixedly connected to the inner wall of the support frame, the upper surface of each fixed bracket is fixedly connected to the inner top wall of the protective box, a lead screw is rotatably connected to the inner wall of each fixed bracket, two sliders are threadedly connected to the outer surface of each lead screw, the outer surface of each slider is fixedly connected to the outer surface of the high-voltage switchgear body, a gear is fixedly connected to the outer surface of each lead screw, and a toothed belt meshes with the outer surfaces of the two gears. A drive motor is fixedly connected to the top of one of the lead screws. A battery body is fixedly connected to the inner wall of the protective box, and an ultrasonic sensor is fixedly connected to the bottom surface of the high-voltage switchgear body.
[0009] As a further improvement of this utility model: a pull plate is fixedly connected to the front of the sealing door, and the controller body is electrically connected to the battery body, the drive motor and the battery body through wires.
[0010] As a further improvement of this utility model: a fixing frame is fixedly connected to the outer surface of the controller body, and the bottom surface of the fixing frame is fixedly connected to the upper surface of the high voltage switchgear body.
[0011] As a further improvement of this utility model: each lead screw has a bearing fixedly connected to its outer surface, and the bottom end of each bearing is fixedly connected to the inner wall of the fixing frame.
[0012] As a further improvement of this utility model: two fixing blocks are fixedly connected to the outer surface of each fixing frame, and the bottom surface of each fixing block is fixedly connected to the inner wall of the support frame.
[0013] As a further improvement of this utility model: a fixing ring is fixedly connected to the outer surface of the battery body, and the outer surface of the fixing ring is fixedly connected to the bottom surface of the high-voltage switchgear body.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] This invention, by incorporating a water ingress warning mechanism, can provide early warning of water ingress into the high-voltage switchgear body and dynamically adjust the height of the switchgear body autonomously, thereby improving the device's effectiveness. When water enters the protection box, the controller activates an ultrasonic sensor. The ultrasonic transmitter within the sensor continuously emits ultrasonic signals towards the water surface inside the protection box. These signals are received by the receiver within the sensor, allowing for the measurement of the distance between the ultrasonic sensor and the water level within the support frame. When the measured height falls below a safe value, an alarm light within the controller automatically sounds. By incorporating the controller body, slider, toothed belt, gear, high-voltage switchgear body, lead screw, and fixing frame, the height of the high-voltage switchgear body can be adjusted to protect it and prevent water ingress into the support frame from jeopardizing its safe operation. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of a water-proof high-voltage switchgear;
[0017] Figure 2 A schematic diagram of the three-dimensional structure of the controller body in a water-proof high-voltage switchgear;
[0018] Figure 3 A schematic diagram of the three-dimensional structure of a bearing in a high-voltage switchgear designed to prevent water accumulation;
[0019] Figure 4 A schematic diagram of the three-dimensional structure of a lead screw in a high-voltage switchgear designed to prevent water accumulation;
[0020] Figure 5 A schematic diagram of the three-dimensional structure of an ultrasonic sensor in a water-proof high-voltage switchgear;
[0021] Figure 6 This is a schematic diagram of a three-dimensional gear structure in a high-voltage switchgear designed to prevent water accumulation.
[0022] In the diagram: 1. Support frame; 2. Anti-water accumulation warning mechanism; 201. Protective cover; 202. Sealing door; 203. Controller body; 204. High-voltage switchgear body; 205. Slider; 206. Fixing frame; 207. Lead screw; 208. Toothed belt; 209. Gear; 210. Drive motor; 211. Protective box; 212. Battery body; 213. Ultrasonic sensor; 3. Pull plate; 4. Fixing frame; 5. Bearing; 6. Fixing block; 7. Fixing ring. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0024] Example 1
[0025] Please see Figure 1-6 A high-voltage switchgear designed to prevent water accumulation includes a support frame 1, with a water accumulation warning mechanism 2 installed above the support frame 1. The water accumulation warning mechanism 2 includes a protective cover 201, with a protective box 211 fixedly connected to the bottom surface of the protective cover 201. A sealing door 202 is movably hinged to the protective box 211, and a pull plate 3 is fixedly connected to the front of the sealing door 202. The pull plate 3 facilitates the opening and closing of the sealing door 202 by the staff, thereby improving the effectiveness and efficiency of the device.
[0026] The bottom surface of the protection box 211 is fixedly connected to the upper surface of the support frame 1. The protection box 211 houses the main body 204 of a high-voltage switchgear. The upper surface of the main body 204 is fixedly connected to the controller body 203. Two fixing brackets 206 are fixedly connected to the inner wall of the support frame 1. The upper surface of each fixing bracket 206 is fixedly connected to the inner top wall of the protection box 211. Two fixing blocks 6 are fixedly connected to the outer surface of each fixing bracket 206. The bottom surface of each fixing block 6 is fixedly connected to the inner wall of the support frame 1. The fixing blocks 6 secure the support frame 1, preventing it from tilting or breaking during use, thus ensuring its stability.
[0027] Example 2
[0028] Please see Figure 1-6 Each fixed frame 206 has a lead screw 207 rotatably connected to its inner wall, and a bearing 5 is fixedly connected to the outer surface of each lead screw 207. The bottom end of each bearing 5 is fixedly connected to the inner wall of the fixed frame 206. The bearing 5 can be used to fix the lead screw 207 and prevent the lead screw 207 from shaking during rotation.
[0029] Each lead screw 207 has two sliders 205 threadedly connected to its outer surface. The outer surface of each slider 205 is fixedly connected to the outer surface of the high-voltage switchgear body 204. Each lead screw 207 has a gear 209 fixedly connected to its outer surface. The outer surfaces of the two gears 209 mesh with a toothed belt 208. A drive motor 210 is fixedly connected to the top of one of the lead screws 207. A battery body 212 is fixedly connected to the inner wall of the protection box 211. An ultrasonic sensor 213 is fixedly connected to the bottom surface of the high-voltage switchgear body 204. A fixing ring 7 is fixedly connected to the outer surface of the ultrasonic sensor 213. The outer surface of the fixing ring 7 is fixedly connected to the bottom surface of the high-voltage switchgear body 204. The fixing ring 7 can fix the ultrasonic sensor 213 and prevent it from falling off during use.
[0030] The controller body 203 is electrically connected to the battery body 212, drive motor 210, and battery body 212 via wires. A fixing frame 4 is fixedly connected to the outer surface of the controller body 203. The bottom surface of the fixing frame 4 is fixedly connected to the upper surface of the high-voltage switchgear body 204. The fixing frame 4 protects the controller body 203 and prevents it from falling during use. The controller consists of two parts: hardware and software. The hardware mainly includes a central processing unit (CPU) for calculation, input / output (I / O) interfaces for connecting sensors and actuators, memory for storing programs and data, and power supply and communication modules. The software includes control algorithm programs and a real-time operating system such as R... TOS and the human-machine interface work together to ensure precise and efficient system control, and are widely used in industrial automation, smart homes, automotive electronics and other fields. The controller is a core device that regulates the operation of the system by processing input signals in real time and generating control commands. Its working principle can be summarized as follows: First, it collects signals from sensors or external inputs such as temperature and speed, and compares them with preset target values to calculate the deviation; then, it uses built-in algorithms such as PID control and logical judgment to analyze the deviation and generate adjustment commands; finally, it drives actuators such as motors and valves through the output interface to adjust the system state, and at the same time, it continuously monitors the effect through closed-loop feedback to achieve dynamic stability. The controller can control the electrical components of this technical solution.
[0031] Example 3
[0032] The working principle of this utility model is as follows: In use, the drive motor 210, ultrasonic sensor 213, and controller body 203 are first connected to the battery body 212. The high-voltage switchgear body 204 is connected to the circuit. When the device is used in rainy weather, the controller body 203 controls the ultrasonic sensor 213 to operate. The transmitter inside the ultrasonic sensor 213 emits ultrasonic pulses. The sound waves are reflected back after encountering the water surface. The reflected ultrasonic signal is received by the receiver inside the ultrasonic sensor 213, thus measuring the height between the ultrasonic sensor 213 and the water that enters the protective box 211 through the bottom of the support frame 1. The distance measured by the acoustic sensor 213 is transmitted to the controller body 203. This distance is then compared with a safety value set within the controller body 203. When the distance is less than the safety value, the warning light inside the controller body 203 automatically alarms, and the controller body 203 controls the high-voltage switchgear body 204 to cut off power and stop operation. Afterwards, the controller body 203 controls the drive motor 210 to operate. Supported by the mounting bracket 206, the drive motor 210 drives one of the lead screws 207 to rotate. The rotation of the lead screw 207, in turn, drives one of the gears 209 to rotate, which in turn drives the gear belt... The toothed belt 208 rotates, which in turn drives another gear 209 to rotate. Under the action of the two gears 209 and the support of the fixed frame 206 and the protective box 211, the toothed belt 208 is stably driven. The movement of the toothed belt 208 indirectly drives the two lead screws 207 to rotate. Since the lead screws 207 are threadedly connected to the sliders 205, the rotation of the lead screws 207 drives the two sets of sliders 205 to slide up and down along the inside of the fixed frame 206. The sliding of the sliders 205 in turn drives the high-voltage switchgear body 204 to move up and down along the inside of the protective box 211. By adjusting the position distance of the high-voltage switchgear body 204, the high-voltage switchgear... The height of the main body 204 is increased from the water level inside the support frame 1, thereby protecting the electrical components of the high-voltage switchgear main body 204 and preventing water ingress. When the high-voltage switchgear main body 204 is adjusted to its highest distance, the controller main body 203 controls the drive motor 210 to stop working and disconnects the power to the device. This device provides dynamic protection for the high-voltage switchgear main body 204, preventing damage during use and providing early warning protection, thus improving the device's effectiveness.
[0033] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A water-proof high-voltage switchgear, comprising a support frame (1), characterized in that: A flood prevention warning mechanism (2) is provided above the support frame (1); the flood prevention warning mechanism (2) includes a protective cover (201), a protective box (211) is fixedly connected to the bottom surface of the protective cover (201), a sealing door (202) is movably hinged to the protective box (211), the bottom surface of the protective box (211) is fixedly connected to the upper surface of the support frame (1), a high-voltage switch cabinet body (204) is provided inside the protective box (211), a controller body (203) is fixedly connected to the upper surface of the high-voltage switch cabinet body (204), and two fixing brackets (206) are fixedly connected to the inner wall of the support frame (1), the upper surface of each fixing bracket (206) is fixed to the inner top wall of the protective box (211). The connection is as follows: a lead screw (207) is rotatably connected to the inner wall of each of the fixed frames (206); two sliders (205) are threadedly connected to the outer surface of each lead screw (207); the outer surface of each slider (205) is fixedly connected to the outer surface of the high-voltage switchgear body (204); a gear (209) is fixedly connected to the outer surface of each lead screw (207); a toothed belt (208) meshes with the outer surfaces of the two gears (209); a drive motor (210) is fixedly connected to the top of one of the lead screws (207); a battery body (212) is fixedly connected to the inner wall of the protection box (211); and an ultrasonic sensor (213) is fixedly connected to the bottom surface of the high-voltage switchgear body (204).
2. The high-voltage switchgear for preventing water accumulation according to claim 1, characterized in that: A pull plate (3) is fixedly connected to the front of the sealing door (202), and the controller body (203) is electrically connected to the battery body (212), the drive motor (210) and the battery body (212) through wires.
3. A high-voltage switchgear for preventing water accumulation according to claim 1, characterized in that: A fixing frame (4) is fixedly connected to the outer surface of the controller body (203), and the bottom surface of the fixing frame (4) is fixedly connected to the upper surface of the high voltage switch cabinet body (204).
4. A high-voltage switchgear for preventing water accumulation according to claim 1, characterized in that: Each lead screw (207) has a bearing (5) fixedly connected to its outer surface, and the bottom end of each bearing (5) is fixedly connected to the inner wall of the fixing frame (206).
5. A high-voltage switchgear for preventing water accumulation according to claim 1, characterized in that: Two fixing blocks (6) are fixedly connected to the outer surface of each fixing frame (206), and the bottom surface of each fixing block (6) is fixedly connected to the inner wall of the support frame (1).
6. A high-voltage switchgear for preventing water accumulation according to claim 1, characterized in that: The outer surface of the ultrasonic sensor (213) is fixedly connected to a fixing ring (7), and the outer surface of the fixing ring (7) is fixedly connected to the bottom surface of the high voltage switchgear body (204).