Temperature monitoring structure of large-current low-voltage drawer type switch cabinet

Abstract

The invention relates to the technical field of switch cabinets, and discloses a temperature monitoring structure of a large-current low-voltage drawer-type switch cabinet, which comprises a cabinet body, two groups of substrates are arranged in the cabinet body, the substrates are distributed in parallel on two sides in the cabinet body, a transverse plate is slidably mounted on the two groups of substrates together, a sliding block is slidably mounted on the transverse plate, and the sliding block is slidably mounted on the cabinet body. A sliding block is fixedly installed on the cabinet body, an exhaust pipe is fixedly installed on the sliding block, a detection box is fixedly installed on the side wall of the cabinet body, a sealing plate is arranged on the detection box, the exhaust pipe is communicated with the detection box, and an exhaust pump used for extracting gas in the detection box is fixedly installed on the side wall of the detection box. The beneficial effects of the invention are that the multiple sets of exhaust pipes are arranged above different components, air in all areas generating heat in the cabinet body can be extracted, and then detection is performed through the temperature sensor, so that the temperature of each area in the cabinet body is detected, the problem of local overheating is avoided, and the use safety of the equipment is improved.

Description

Technical Field

[0001] This invention relates to the field of switchgear technology, specifically to a temperature monitoring structure for a high-current, low-voltage drawer-type switchgear. Background Technology

[0002] Drawer-type switchgear is made of steel plate with a closed shell. The electrical components of the incoming and outgoing circuits are installed in the drawers that can be pulled out, forming a functional unit that can complete a certain type of power supply task. It is suitable for industrial and mining enterprises and high-rise buildings that require high power supply reliability, and can be used as a centralized control power distribution center.

[0003] Switch cabinets contain numerous electronic devices that generate high temperatures during operation. These high temperatures can affect the lifespan and safety of the equipment, thus requiring adequate cooling and temperature monitoring within the cabinet. Most existing equipment uses temperature sensors to detect the temperature inside the cabinet. However, since these sensors are typically fixed in a specific location, they can only detect the temperature of a particular area. Furthermore, the presence of numerous components within the cabinet can obstruct airflow, leading to localized overheating. This localized overheating makes it difficult for the hot air to quickly reach the temperature sensor for detection, potentially damaging the equipment and reducing its safety. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a device for detecting the internal temperature of switchgear, thereby achieving comprehensive detection and high safety.

[0005] The objective of this invention can be achieved through the following technical solutions: A temperature monitoring structure for a high-current, low-voltage drawer-type switchgear includes a cabinet. Two sets of base plates are disposed inside the cabinet, distributed parallel to each other on both sides of the cabinet. A horizontal plate is slidably mounted on both sets of base plates, and a slider is slidably mounted on the horizontal plate. An extraction pipe is fixedly mounted on the slider. A detection box is fixedly mounted on the side wall of the cabinet, and a sealing plate is provided on the detection box. The extraction pipe is connected to the detection box. An extraction pump for extracting gas from the detection box is fixedly mounted on the side wall of the detection box.

[0006] As a further aspect of the present invention: multiple sets of symmetrically distributed support blocks are fixedly installed on the inner side wall of the cabinet. The support blocks are U-shaped with their openings facing upwards, and the ends of the base plate are located inside the support blocks and fixed by fixing screws.

[0007] As a further embodiment of the present invention: a first cavity is provided in the horizontal plate and multiple sets of first valves communicating with the first cavity are fixedly installed on the horizontal plate; one end of the suction pipe is rotatably connected to a first connector connected to the first valve; and the first cavity is connected to the detection box.

[0008] As a further aspect of the present invention: a groove is provided on the horizontal plate, the first valve is located in the groove, and multiple sets of the first valves are distributed in a linear array along the length of the horizontal plate.

[0009] As a further aspect of the present invention: a connecting rod is fixedly installed inside the cabinet, the connecting rod is parallel to the base plate and located on one side inside the cabinet, and a second cavity is opened inside the connecting rod, the second cavity being connected to the detection box and the first cavity.

[0010] As a further aspect of the present invention: one end of the horizontal plate is connected to a connecting pipe that communicates with the first cavity, and a second connector is rotatably installed at the end of the connecting pipe. Multiple sets of spaced second valves are fixedly installed on the second cavity, and the second connector is connected to the corresponding second valve.

[0011] As a further embodiment of the present invention: a first support plate is fixedly installed at the end of the horizontal plate, a movable plate is slidably installed on the first support plate, the movable plate is parallel to the horizontal plate and slidably connected to the slider, a baffle for distributing the end of the suction pipe is provided on the movable plate, and an electromagnet for driving the movable plate to move is provided on the horizontal plate.

[0012] As a further embodiment of the present invention: a second support plate is fixedly installed at the end of the horizontal plate, an electromagnet is fixedly installed on the second support plate, and a permanent magnet for use with the electromagnet is fixedly installed at the end of the movable plate.

[0013] As a further embodiment of the present invention: a U-shaped card plate is provided on the movable plate, the card plate is slidably mounted on the movable plate and fixed by fixing screws, and a baffle is fixedly mounted on the card plate.

[0014] The beneficial effects of this invention are: (1) In this invention, by setting multiple sets of air extraction pipes above different components, air can be extracted from all areas in the cabinet that generate heat. Then, the temperature is detected by a temperature sensor, thus realizing the detection of the temperature of each area in the cabinet, avoiding the problem of local overheating, and improving the safety of equipment use.

[0015] (2) In this invention, by setting up the first cavity, the connecting pipe, the second cavity and the exhaust pipe, the exhaust pipe at any position can be conveniently connected to the test box, while avoiding a large number of pipe wiring layouts, improving the convenience of equipment use, reducing the probability of pipe aging and damage, thereby reducing the impact on the layout and operation of components, and ensuring the safe and stable operation of the equipment.

[0016] (3) In this invention, by sealing the air inlet ends of different air inlets, the air in different areas of the cabinet can enter the test chamber for testing separately. This not only enables the detection of temperature in each area, but also enables the detection of problematic areas and components through temperature comparison, further improving the safety and practicality of the equipment. Attached Figure Description

[0017] The invention will now be further described with reference to the accompanying drawings.

[0018] Figure 1 This is a first-view structural schematic diagram of the entire invention.

[0019] Figure 2 This is a structural schematic diagram of the entire invention from a second perspective.

[0020] Figure 3 This is a schematic diagram of the detection box in this invention.

[0021] Figure 4 This is a schematic diagram of the connection between the substrate and the horizontal plate in this invention.

[0022] Figure 5 This is a cross-sectional view of the horizontal plate in this invention.

[0023] Figure 6 This is a cross-sectional view of the substrate in this invention.

[0024] Figure 7 yes Figure 5 Enlarged schematic diagram of point A1 in the middle.

[0025] Figure 8 yes Figure 6 Enlarged diagram of point A2 in the middle.

[0026] In the diagram: 1. Cabinet; 2. Support block; 3. Base plate; 4. Horizontal plate; 5. Groove; 6. First cavity; 7. First valve; 8. Slider; 9. Suction pipe; 10. First connector; 11. Connecting rod; 12. Second valve; 13. Second cavity; 14. Connecting pipe; 15. Second connector; 16. Detection box; 17. Sealing plate; 18. Suction pump; 19. Temperature sensor; 20. First support plate; 21. Moving plate; 22. Second support plate; 23. Electromagnet; 24. Card plate; 25. Baffle; 26. Permanent magnet. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] Please see Figures 1-8 As shown, the present invention is a temperature monitoring structure for a high-current, low-voltage drawer-type switchgear, comprising a cabinet 1, two sets of base plates 3 are arranged inside the cabinet 1, the base plates 3 are arranged parallel to each other on both sides inside the cabinet 1, multiple sets of symmetrically distributed support blocks 2 are fixedly installed on the inner side wall of the cabinet 1, the support blocks 2 are U-shaped and open upwards, the ends of the base plates 3 are located inside the support blocks 2 and fixed by fixing screws, a horizontal plate 4 is slidably installed on both sets of base plates 3, a slider 8 is slidably installed on the horizontal plate 4, and an exhaust pipe 9 is fixedly installed on the slider 8, a detection box 16 is fixedly installed on the side wall of the cabinet 1, a sealing plate 17 is provided on the detection box 16, the exhaust pipe 9 is connected to the detection box 16, and an exhaust pump 18 for extracting gas from the detection box 16 is fixedly installed on the side wall of the detection box 16.

[0029] In practical application, after the components in the cabinet 1 are installed, a set number of sliders 8 and horizontal plates 4 are selected according to the installation area and quantity of the components. The corresponding number of sliders 8 are installed on the horizontal plates 4. Then, the horizontal plates 4 are slidably installed on the base plate 3. The base plate 3 is installed on the support block 2 and fixed with fixing screws. Then, the position of the horizontal plates 4 and sliders 8 is adjusted according to the position of the components so that the air inlet end of the exhaust pipe 9 is located above the corresponding components. Then, the position of the horizontal plates 4 and sliders 8 is fixed with fixing screws. Once the cabinet 1 is installed inside the switch cabinet, it can be put into operation. During operation, the air pump 18 draws air from the detection box 16. At this time, the air above the components in the cabinet 1 is drawn into the detection box 16 by the air extraction pipe 9, so that the air above the components in the cabinet 1 flows into the detection box 16 and then flows out. When the air flows in the detection box 16, the temperature sensor 19 detects the air temperature. If the detected temperature is within the set threshold range, it means that the components are operating normally and the heat dissipation is normal. If the detected temperature is lower or higher than the set threshold, it means that some components have problems and need to be maintained and repaired. By setting multiple sets of air extraction pipes 9 above different components, air can be drawn from all areas of heat generation in the cabinet 1, and then detected by the temperature sensor 19. This realizes the detection of the temperature of each area in the cabinet 1, avoids the problem of local overheating, and improves the safety of equipment use.

[0030] Please see Figures 4-8As shown, the present invention is a temperature monitoring structure for a high-current low-voltage drawer-type switch cabinet. A first cavity 6 is provided in the horizontal plate 4, and multiple sets of first air valves 7 connected to the first cavity 6 are fixedly installed on the horizontal plate 4. One end of the air extraction pipe 9 is rotatably connected to a first connector 10 connected to the first air valve 7. The first cavity 6 is connected to the detection box 16.

[0031] Specifically, a groove 5 is provided on the horizontal plate 4, and the first valve 7 is located in the groove 5. Multiple sets of the first valve 7 are distributed in a linear array along the length of the horizontal plate 4.

[0032] Specifically, a connecting rod 11 is fixedly installed inside the cabinet 1. The connecting rod 11 is parallel to the base plate 3 and located on one side inside the cabinet 1. A second cavity 13 is opened inside the connecting rod 11. The second cavity 13 is connected to the detection box 16 and the first cavity 6.

[0033] Specifically, one end of the horizontal plate 4 is connected to a connecting pipe 14 that is connected to the first cavity 6. A second connector 15 is rotatably installed at the end of the connecting pipe 14. Multiple sets of spaced second valves 12 are fixedly installed on the second cavity 13. The second connector 15 is connected to the corresponding second valve 12.

[0034] In practical application, after the positions of the horizontal plate 4 and the slider 8 are adjusted and fixed, the first connector 10 is connected to the nearest first valve 7 to complete the connection between the suction pipe 9 and the first cavity 6. Simultaneously, the second connector 15 is connected to the nearest second valve 12, allowing the connecting pipe 14 to connect the first cavity 6 and the second cavity 13. Both the suction pipe 9 and the connecting pipe 14 are made of soft, high-temperature resistant tubing, while the air inlet end of the suction pipe 9 is made of rigid material. When the suction pump 18 subsequently draws air from the detection box 16, the air inside the cabinet 1... Gas enters the first chamber 6 through the extraction pipe 9, then enters the second chamber 13 through the connecting pipe 14, and finally enters the detection box 16 from the second chamber 13. The arrangement of the first chamber 6, the connecting pipe 14, the second chamber 13 and the extraction pipe 9 allows the extraction pipe 9 to be easily connected to the detection box 16 from any position, while avoiding a large amount of pipe wiring, improving the ease of use of the equipment, reducing the probability of pipe aging and damage, and thus reducing the impact on the arrangement and operation of components, ensuring the safe and stable operation of the equipment. The groove 5 is designed so that the first valve 7 is located inside the groove 5, ensuring that the slider 8 can be smoothly slidably installed onto the horizontal plate 4.

[0035] Please see Figures 4-8As shown, the present invention is a temperature monitoring structure for a high-current low-voltage drawer-type switchgear. A first support plate 20 is fixedly installed at the end of the horizontal plate 4. A movable plate 21 is slidably installed on the first support plate 20. The movable plate 21 is parallel to the horizontal plate 4 and slidably connected to the slider 8. A baffle 25 for distributing the end of the exhaust pipe 9 is provided on the movable plate 21. An electromagnet 23 for driving the movable plate 21 to move is provided on the horizontal plate 4.

[0036] Specifically, a second support plate 22 is fixedly installed at the end of the horizontal plate 4, an electromagnet 23 is fixedly installed on the second support plate 22, and a permanent magnet 26 that works in conjunction with the electromagnet 23 is fixedly installed at the end of the movable plate 21.

[0037] Specifically, a U-shaped clamping plate 24 is provided on the movable plate 21. The clamping plate 24 is slidably mounted on the movable plate 21 and fixed by fixing screws. The baffle 25 is fixedly mounted on the clamping plate 24.

[0038] In practical application, the number of clamping plates 24 corresponding to the slider 8 are installed on the moving plate 21. The position of the clamping plates 24 corresponds to the position of the slider 8. When the detected temperature is within the set threshold range, the temperature of each area corresponding to the horizontal plate 4 is detected once within a set time. One set of electromagnets 23 is kept de-energized, while the other electromagnets 23 are energized. After the electromagnets 23 are energized, they generate a repulsive force on the permanent magnet 26. Under the action of the magnetic force, the moving plate 21 is moved and comes into contact with the first support plate 20. At this time, the baffle 25 contacts the lower end of the suction pipe 9 and closes the air inlet of the suction pipe 9. At this time, only the air in the area corresponding to one set of horizontal plates 4 enters the detection box 16 to detect the temperature. After the detection is completed, the energized electromagnets 23 are found to be energized, causing the moving plate 21 to reset and release the closure of the suction pipe 9. The electromagnets 23 are de-energized and energized in turn to obtain the normal working temperature range of each area corresponding to the horizontal plate 4. After the detection is completed, the air inlet of all suction pipes 9 is kept open for normal detection. When the temperature is checked and found to be below or above the set threshold range, all air intakes of the extraction pipes 9 are closed again, and the gas in the detection chamber 16, the first chamber 6, and the second chamber 13 is extracted. Then, the electromagnet 23 on one of the horizontal plates 4 is turned on to open the extraction pipes 9 on that horizontal plate 4, thereby detecting the temperature of the corresponding area of ​​each horizontal plate 4 again. If the detected temperature does not match the temperature detected under normal conditions, it indicates that there is a problem in that area. At this time, the data can be sent to the control center via wireless transmission equipment, and the faulty area and potentially problematic components can be identified. By closing the air intakes of different extraction pipes 9, the air from different areas in the cabinet 1 can enter the detection chamber 16 for detection separately. This not only enables the detection of the temperature of each area but also allows the detection of the problematic area and components through temperature comparison, further improving the safety and practicality of the equipment.

Claims

1. A temperature monitoring structure for a high-current, low-voltage drawer-type switchgear, comprising a cabinet (1), characterized in that, The cabinet (1) is provided with two sets of base plates (3). The base plates (3) are located on both sides of the cabinet (1) and are distributed in parallel. A horizontal plate (4) is slidably installed on both sets of base plates (3). A slider (8) is slidably installed on the horizontal plate (4). An exhaust pipe (9) is fixedly installed on the slider (8). A test box (16) is fixedly installed on the side wall of the cabinet (1). A sealing plate (17) is provided on the test box (16). The exhaust pipe (9) is connected to the test box (16). An exhaust pump (18) for extracting gas from the test box (16) is fixedly installed on the side wall of the test box (16).

2. The temperature monitoring structure for a high-current, low-voltage drawer-type switchgear according to claim 1, characterized in that, Multiple sets of symmetrically distributed support blocks (2) are fixedly installed on the inner side wall of the cabinet (1). The support blocks (2) are U-shaped and open upward. The end of the base plate (3) is located inside the support block (2) and is fixed by fixing screws.

3. The temperature monitoring structure for a high-current, low-voltage drawer-type switchgear according to claim 1, characterized in that, The horizontal plate (4) has a first cavity (6) and multiple sets of first valves (7) connected to the first cavity (6) are fixedly installed on the horizontal plate (4). One end of the suction pipe (9) is rotatably connected to a first connector (10) connected to the first valve (7). The first cavity (6) is connected to the detection box (16).

4. The temperature monitoring structure for a high-current, low-voltage drawer-type switchgear according to claim 3, characterized in that, The horizontal plate (4) has a groove (5) and the first valve (7) is located in the groove (5). Multiple sets of first valves (7) are distributed in a linear array along the length of the horizontal plate (4).

5. The temperature monitoring structure for a high-current, low-voltage drawer-type switchgear according to claim 3, characterized in that, A connecting rod (11) is fixedly installed inside the cabinet (1). The connecting rod (11) is parallel to the base plate (3) and located on one side inside the cabinet (1). A second cavity (13) is opened inside the connecting rod (11). The second cavity (13) is connected to the detection box (16) and the first cavity (6).

6. The temperature monitoring structure for a high-current, low-voltage drawer-type switchgear according to claim 5, characterized in that, One end of the horizontal plate (4) is connected to a connecting pipe (14) that is connected to the first cavity (6). A second connector (15) is rotatably installed at the end of the connecting pipe (14). Multiple sets of spaced second valves (12) are fixedly installed on the second cavity (13). The second connector (15) is connected to the corresponding second valve (12).

7. The temperature monitoring structure for a high-current, low-voltage drawer-type switchgear according to claim 1, characterized in that, The first support plate (20) is fixedly installed at the end of the horizontal plate (4). A movable plate (21) is slidably installed on the first support plate (20). The movable plate (21) is parallel to the horizontal plate (4) and slidably connected to the slider (8). A baffle (25) for distributing the end of the suction pipe (9) is provided on the movable plate (21). An electromagnet (23) for driving the movable plate (21) to move is provided on the horizontal plate (4).

8. The temperature monitoring structure for a high-current, low-voltage drawer-type switchgear according to claim 7, characterized in that, The end of the horizontal plate (4) is fixedly installed with a second support plate (22), the electromagnet (23) is fixedly installed on the second support plate (22), and the end of the movable plate (21) is fixedly installed with a permanent magnet (26) that works in conjunction with the electromagnet (23).

9. The temperature monitoring structure for a high-current, low-voltage drawer-type switchgear according to claim 8, characterized in that, The movable plate (21) is provided with a U-shaped card plate (24), which is slidably mounted on the movable plate (21) and fixed by fixing screws. The baffle (25) is fixedly mounted on the card plate (24).

Images