A power distribution cabinet temperature and humidity detection device and method
By designing a temperature and humidity detection device with a detection chamber and a drive cylinder in the power distribution cabinet, the shortcomings of temperature and humidity detection in the power distribution cabinet are solved, enabling timely monitoring of temperature and humidity and ensuring the safe and stable operation of the equipment.
Patent Information
- Application Number
- CN202510356942.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-25
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2045-03-25
AI Technical Summary
The existing power distribution cabinets lack temperature and humidity detection devices, which makes it impossible to detect abnormal temperatures or humidity in a timely manner, affecting the stable operation and safety of the equipment.
A temperature and humidity detection device for a power distribution cabinet was designed. The device uses a detection chamber to sense changes in air pressure to trigger a power supply alarm, and uses a drive cylinder to extract air to detect humidity. Anhydrous copper sulfate powder is used to detect humidity changes.
It enables timely monitoring of the temperature and humidity of the power distribution cabinet, preventing equipment damage and malfunctions, and improving operational safety and stability.
Smart Images

Figure CN119890960B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of electrical distribution cabinet testing devices, and more particularly to a device and method for detecting temperature and humidity in electrical distribution cabinets. Background Technology
[0002] In modern power systems, distribution cabinets are key equipment for power distribution and control, and their stable operation is crucial. The electrical components inside the distribution cabinet continuously generate heat during operation. If the temperature inside the cabinet is too high, it can lead to a decline in component performance, a shortened lifespan, and even serious malfunctions such as short circuits. Simultaneously, ambient humidity also has a significant impact on the electrical equipment inside the distribution cabinet; excessive humidity may reduce electrical insulation performance, causing safety hazards such as leakage and short circuits.
[0003] Current power distribution cabinets generally do not have temperature and humidity detection devices, making it impossible for staff to effectively assess the temperature and humidity inside the cabinet. If high temperatures or humidity are not detected and addressed in a timely manner, it may affect the normal operation of the power distribution cabinet. Summary of the Invention
[0004] The purpose of this invention is to solve the problems mentioned in the background art, and to provide a device and method for detecting temperature and humidity in a power distribution cabinet.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A temperature and humidity detection device for a power distribution cabinet includes a cabinet body and further includes:
[0007] The detection capsule with a connecting tube is fixedly connected in the cabinet;
[0008] The drive cylinder is fixedly connected inside the cabinet;
[0009] The detection capsule is connected to the drive cylinder via a connecting tube;
[0010] An alarm cylinder connected to an alarm device is fixedly attached to the top of the cabinet;
[0011] The first sliding plug is slidably connected in the drive cylinder;
[0012] The push rod is fixedly connected to the first slide plug;
[0013] The power supply is slidably connected to the alarm cylinder;
[0014] The alarm cylinder has a socket, and a connecting post is fixedly connected to the power supply, and the connecting post matches the socket.
[0015] When the first sliding plug moves upward, it pushes the power supply to move, and the power supply simultaneously drives the connecting post to move upward and insert into the socket, and the power supply supplies power to the alarm on the alarm cylinder to sound an alarm.
[0016] Preferably, a detection cylinder is fixedly connected to the cabinet, a first air supply pipe and a second air supply pipe are fixedly connected to the detection cylinder, a second sliding plug is slidably connected to the detection cylinder, and a detection part is fixedly connected to the detection cylinder.
[0017] Furthermore, a drive rod is fixedly connected to the bottom of the power supply, and a connection hole is provided on the drive rod. A connecting rod is fixedly connected to the top of the push rod, and the connecting rod matches the connection hole.
[0018] Furthermore, a first magnet is fixedly connected to the connecting hole, and the connecting rod is an iron rod that is attracted to the first magnet.
[0019] Preferably, an electromagnet is fixedly connected in the alarm cylinder, and a second magnet is fixedly connected to the top of the power supply, and the electromagnet and the second magnet are attracted to each other.
[0020] Furthermore, a third air supply pipe is fixedly connected to the side wall of the drive cylinder.
[0021] Furthermore, a first spring is fixedly connected to the first slide plug, and the end of the first spring away from the first slide plug is fixedly connected to the top wall inside the drive cylinder;
[0022] A second spring is fixedly connected to the second slide, and the end of the second spring away from the second slide is fixedly connected to the inner wall of the detection cylinder.
[0023] Furthermore, a viewing window is fixedly connected to the cabinet, and the detection cylinder is a transparent glass cylinder.
[0024] Furthermore, a fourth gas supply pipe is fixedly connected to the detection cylinder, and both the fourth gas supply pipe and the second gas supply pipe are equipped with one-way valves.
[0025] A detection method for a temperature and humidity detection device for a power distribution cabinet, comprising the following steps:
[0026] Step 1: Cabinet operation. When the temperature inside the cabinet rises, the detection bladder inside the cabinet will deform under the pressure of the air. The gas inside the detection bladder is blown into the drive cylinder, which pushes the first slide plug to slide and drives the push rod to move upward.
[0027] Step 2: After the push rod moves up a certain distance, the connecting rod is inserted into the connecting hole and attracted to the first magnet. The first sliding plug continues to move up, pushing the power supply to move up synchronously.
[0028] Step 3: After the power supply moves up a certain distance, the electromagnet is energized, attracting the second magnet, causing the connecting post to be inserted into the socket. The power supply then supplies power to the alarm, and the alarm emits an audible and visual alarm.
[0029] Step 4: When the first sliding plug moves upward, the drive cylinder draws gas from the detection cylinder through the first gas supply pipe, causing the second sliding plug to slide.
[0030] Step 5: The second slide plug slides to allow the detection cylinder to draw air from the cabinet through the second air supply pipe, and the air passes through the detection section;
[0031] Step 6: Observe the changes in the detection section to determine the air humidity inside the cabinet.
[0032] Compared with the prior art, the present invention provides a device and method for detecting temperature and humidity in a power distribution cabinet, which has the following beneficial effects:
[0033] The parts not mentioned in this device are the same as or can be implemented using existing technologies. This invention senses changes in air pressure inside the cabinet by detecting the pressure changes in the detection bag and uses the deformation of the detection bag under pressure to drive the power supply to the alarm. This can promptly alert the staff that the cabinet temperature is too high, allowing the staff to take cooling measures quickly. This effectively avoids damage to the components inside the power distribution cabinet due to excessive temperature, and greatly improves the safety and stability of the power distribution cabinet operation.
[0034] Simultaneously, by moving the first sliding plug inside the drive cylinder, air inside the cabinet is drawn into the detection cylinder, and the color change of the detection part inside the detection cylinder is observed. This allows staff to make timely maintenance responses, prevent electrical faults caused by excessive humidity, and further improve the safety and stability of the power distribution cabinet operation. Attached Figure Description
[0035] Figure 1 This is a schematic diagram of the structure of a power distribution cabinet temperature and humidity detection device proposed in this invention;
[0036] Figure 2 This is a cross-sectional view of a temperature and humidity detection device for a power distribution cabinet proposed in this invention. Figure 1 ;
[0037] Figure 3 This is an enlarged view of part A in a power distribution cabinet temperature and humidity detection device proposed in this invention;
[0038] Figure 4 This invention provides a temperature and humidity detection device for a power distribution cabinet. Figure 3 Enlarged view of section C;
[0039] Figure 5 This invention provides a temperature and humidity detection device for a power distribution cabinet. Figure 3 Enlarged view of section D;
[0040] Figure 6 This is a cross-sectional view of a temperature and humidity detection device for a power distribution cabinet proposed in this invention. Figure 2 ;
[0041] Figure 7 This invention provides a temperature and humidity detection device for a power distribution cabinet. Figure 6 Enlarged view of section B.
[0042] In the diagram: 1. Cabinet; 101. Viewing window; 2. Alarm cylinder; 201. Alarm device; 202. Socket; 203. Electromagnet; 3. Detection chamber; 301. Connecting pipe; 4. Detection cylinder; 401. Fourth air supply pipe; 402. Second air supply pipe; 403. First air supply pipe; 404. Second spring; 405. Second sliding plug; 406. Detection unit; 5. Drive cylinder; 501. First sliding plug; 502. First spring; 503. Push rod; 5031. Connecting rod; 504. Third air supply pipe; 6. Drive rod; 601. Connecting hole; 6011. First magnet; 7. Power supply; 701. Connecting post; 702. Second magnet. Detailed Implementation
[0043] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Example
[0044] Reference Figures 1-7 A temperature and humidity detection device for a power distribution cabinet, comprising a cabinet body 1, and further comprising:
[0045] The detection capsule 3, equipped with a connecting tube 301, is fixedly connected in the cabinet 1;
[0046] The drive cylinder 5 is fixedly connected in the cabinet 1;
[0047] The detection capsule 3 is connected to the drive cylinder 5 through the connecting pipe 301;
[0048] The alarm cylinder 2, which is connected to the alarm 201, is fixedly connected to the top of the cabinet 1;
[0049] The first sliding plug 501 is slidably connected in the drive cylinder 5;
[0050] Push rod 503 is fixedly connected to first slide plug 501;
[0051] Power supply 7 is slidably connected in alarm cylinder 2;
[0052] The alarm cylinder 2 has a socket 202, and a connecting post 701 is fixedly connected to the power supply 7. The connecting post 701 is matched with the socket 202.
[0053] When the first sliding plug 501 moves upward, it pushes the power supply 7 to move. The power supply 7 then moves the connecting post 701 upward and inserts it into the socket 202. The power supply 7 then supplies power to the alarm 201 on the alarm cylinder 2 to trigger the alarm.
[0054] It should be noted that the detection bladder 3 is a self-resetting elastic bladder, and the detection bladder 3 is connected to an air supply tube, which is connected to the external environment. Both the air supply tube and the connecting tube 301 are equipped with one-way valves.
[0055] Reference Figure 5 A detection cylinder 4 is fixedly connected in the cabinet 1. A first air supply pipe 403 and a second air supply pipe 402 are fixedly connected to the detection cylinder 4. A second sliding plug 405 is slidably connected in the detection cylinder 4. A detection part 406 is fixedly connected in the detection cylinder 4.
[0056] It should be noted that the test part 406 is anhydrous copper sulfate powder.
[0057] A drive rod 6 is fixedly connected to the bottom of the power supply 7. A connection hole 601 is provided on the drive rod 6. A connecting rod 5031 is fixedly connected to the top of the push rod 503. The connecting rod 5031 matches the connection hole 601.
[0058] A first magnet 6011 is fixedly connected in the connecting hole 601, and the connecting rod 5031 is an iron rod that attracts the first magnet 6011.
[0059] An electromagnet 203 is fixedly connected in the alarm cylinder 2, and a second magnet 702 is fixedly connected to the top of the power supply 7. The electromagnet 203 and the second magnet 702 are attracted to each other.
[0060] Reference Figures 2-7 During use, the components inside cabinet 1 gradually generate heat, causing the air pressure inside cabinet 1 to gradually increase. This causes the detection chamber 3 inside cabinet 1 to deform under the pressure. At this point, the solenoid valve inside the connecting pipe 301 is opened, allowing gas from the detection chamber 3 to be blown into the drive cylinder 5 through the connecting pipe 301. The gas entering the drive cylinder 5 pushes the first sliding plug 501 to slide. The sliding of the first sliding plug 501 pushes the push rod 503 upwards. After the push rod 503 has moved upwards a certain distance, the connecting rod 5031 on the push rod 503 will insert into the connecting hole 601. The first sliding plug 501 will move upward and push the power supply 7 upward synchronously. After the power supply 7 moves upward a certain distance, the electromagnet 203 will be energized. At this time, the second magnet 702 on the power supply 7 will be attracted by the electromagnet 203 and move upward. When the electromagnet 203 and the second magnet 702 are attracted, the connecting post 701 will be inserted into the socket 202. At this time, the power supply 7 will supply power to the alarm 201, and the alarm 201 will emit sound and light to warn the staff that the temperature inside the cabinet 1 is too high, so that the staff can take cooling measures.
[0061] Reference Figures 3-5 , Figure 7 When the first sliding plug 501 moves upward, the drive cylinder 5 will also simultaneously draw gas from the detection cylinder 4 through the first gas supply pipe 403, thereby simultaneously drawing the second sliding plug 405 to slide. When the second sliding plug 405 slides, the detection cylinder 4 will simultaneously draw gas from the cabinet 1 through the second gas supply pipe 402. The drawn gas will pass through the detection section 406. When the moisture content in the drawn air is high, the anhydrous copper sulfate will change color. The staff can observe the color change of the detection section 406 in time through the viewing window 101 and the transparent detection cylinder 4, and thus quickly analyze that the air humidity in the cabinet 1 exceeds the standard, which is convenient for the staff to make timely maintenance responses.
[0062] It should be noted that when the electromagnet 203 momentarily attracts the second magnet 702 to move upward, the first magnet 6011 will not separate from the connecting rod 5031.
[0063] It should also be noted that the alarm 201 is a commercially available audible and visual alarm light.
[0064] A third air supply pipe 504 is fixedly connected to the side wall of the drive cylinder 5.
[0065] A first spring 502 is fixedly connected to the first slide plug 501, and the end of the first spring 502 away from the first slide plug 501 is fixedly connected to the inner top wall of the drive cylinder 5.
[0066] It should be noted that an air inlet pipe is also connected to the side wall of the drive cylinder 5, and the end of the air inlet pipe away from the drive cylinder 5 is connected to a dry cooling gas tank in the outside.
[0067] It should also be noted that both the intake pipe and the third air supply pipe 504 are equipped with one-way valves.
[0068] Reference Figure 3 , Figure 4 After the maintenance is completed, the electromagnet 203 is de-energized and the cooling gas tank replenishes the drive cylinder 5 with gas. At this time, the first sliding plug 501 will slide down and reset. After the first sliding plug 501 slides down a certain distance, the power supply 7 slides down to the lowest end of the alarm cylinder 2. When the first sliding plug 501 slides down again, the first magnet 6011 will separate from the connecting rod 5031.
[0069] Reference Figure 4 The first spring 502 enables the first slide plug 501 to be quickly reset. When the first slide plug 501 is reset, the drive cylinder 5 will draw dry cooling gas from the outside through the air inlet pipe and store the dry cooling gas in the drive cylinder 5 for easy testing next time.
[0070] A second spring 404 is fixedly connected to the second slide 405, and the end of the second spring 404 away from the second slide 405 is fixedly connected to the inner wall of the detection cylinder 4.
[0071] Reference Figure 5 The second spring 404 can quickly reset the second slide 405. When the second slide 405 is reset, the air drawn out of the detection cylinder 4 can be squeezed out and discharged to the outside of the cabinet 1 through the fourth air supply pipe 401.
[0072] A viewing window 101 is fixedly connected to the cabinet 1, and the detection cylinder 4 is a transparent glass cylinder.
[0073] Reference Figure 1 , Figure 3 , Figure 5 When the second sliding stopper 405 is sucked and slides to the right, the air inside the cabinet 1 will be drawn into the detection cylinder 4 through the second air supply pipe 402. The drawn air will pass through the detection section 406. When the moisture content of the drawn air is high, the anhydrous copper sulfate will change color. The staff can observe the color change of the detection section 406 in time through the viewing window 101 and the transparent detection cylinder 4, and then quickly analyze that the air humidity inside the cabinet 1 exceeds the standard, so that the staff can make timely maintenance responses.
[0074] It should be noted that when the detection section 406 changes color, the staff can replace the detection section 406 during maintenance to facilitate the next humidity test.
[0075] A fourth gas supply pipe 401 is fixedly connected to the detection cylinder 4, and a one-way valve is installed on both the fourth gas supply pipe 401 and the second gas supply pipe 402.
[0076] This invention uses the detection bladder 3 to sense changes in air pressure inside the cabinet 1, and uses the deformation of the detection bladder 3 under pressure to drive the power supply 7 to power the alarm 201. This can promptly alert the staff that the temperature of the cabinet 1 is too high, allowing the staff to quickly take cooling measures, effectively avoiding damage to the components inside the power distribution cabinet due to excessive temperature, and greatly improving the safety and stability of the power distribution cabinet operation.
[0077] At the same time, by moving the first sliding plug 501 inside the drive cylinder 5, air inside the cabinet 1 is drawn into the detection cylinder 4, and the color change of the detection part 406 inside the detection cylinder 4 is observed. This allows staff to make timely maintenance responses, prevent electrical faults caused by excessive humidity, and further improve the safety and stability of the power distribution cabinet operation.
[0078] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.
Claims
1. A detection method for a power distribution cabinet temperature and humidity detection device, the detection device comprising a cabinet body (1), characterized in that, Also include: The detection capsule (3) with the communication pipe (301), fixedly connected in the cabinet (1); Drive cylinder (5), fixedly connected in the cabinet (1); The detection capsule (3) is communicated with the drive cylinder (5) through the communication pipe (301); The alarm cylinder (2) connected with the alarm (201) is fixedly connected at the top of the cabinet (1); The first sliding plug (501) is slidingly connected in the drive cylinder (5); The push rod (503) is fixedly connected to the first sliding plug (501); The power supply (7) is slidingly connected in the alarm cylinder (2); The jack (202) is provided in the alarm cylinder (2), the connecting column (701) is fixedly connected to the power supply (7), and the connecting column (701) is matched with the jack (202); When the first sliding plug (501) moves upwards to push the power supply (7) to move, the power supply (7) drives the connecting column (701) to move upwards and inserts into the jack (202), and the power supply (7) supplies power to the alarm (201) on the alarm cylinder (2) to alarm; The cabinet (1) is fixedly connected with the detection cylinder (4), the first gas pipe (403) and the second gas pipe (402) are fixedly connected to the detection cylinder (4), the second sliding plug (405) is slidingly connected in the detection cylinder (4), and the detection part (406) is fixedly connected in the detection cylinder (4); The drive rod (6) is fixedly connected to the bottom of the power supply (7), the connecting hole (601) is formed in the drive rod (6), the connecting rod (5031) is fixedly connected to the top of the push rod (503), and the connecting rod (5031) is matched with the connecting hole (601); The first magnet (6011) is fixedly connected in the connecting hole (601), the connecting rod (5031) is an iron rod, and the connecting rod (5031) is attracted to the first magnet (6011); The electromagnet (203) is fixedly connected in the alarm cylinder (2), the second magnet (702) is fixedly connected to the top of the power supply (7), and the electromagnet (203) is attracted to the second magnet (702); The first spring (502) is fixedly connected to the first sliding plug (501), and one end of the first spring (502) away from the first sliding plug (501) is fixedly connected to the inner top wall of the drive cylinder (5); The second spring (404) is fixedly connected to the second sliding plug (405), and one end of the second spring (404) away from the second sliding plug (405) is fixedly connected to the inner side wall of the detection cylinder (4); The detection step includes: Step one, the cabinet (1) works, when the air temperature in the cabinet (1) rises, the detection capsule (3) in the cabinet (1) will be extruded by the air pressure and deformed, the gas in the detection capsule (3) blows into the drive cylinder (5), pushes the first sliding plug (501) to slide and drives the push rod (503) to move upwards; Step two, after the push rod (503) moves upwards by a distance, the connecting rod (5031) is inserted into the connecting hole (601) and is attracted to the first magnet (6011), and the first sliding plug (501) continues to move upwards to push the power supply (7) to move upwards synchronously; Step three, after the power (7) moves a distance, the electromagnet (203) is electrified, attracts the second magnet (702), makes the connecting column (701) insert the jack (202), the power (7) powers the alarm (201), and the alarm sends out sound and light alarm; Step four, when the first sliding plug (501) moves up, the driving cylinder (5) extracts the gas in the detection cylinder (4) through the first gas pipe (403), drives the second sliding plug (405) to slide; Step five, the second sliding plug (405) slides to make the detection cylinder (4) extract the air in the cabinet (1) through the second gas pipe (402), and the air passes through the detection part (406); Step six, observe the change of the detection part (406), judge the air humidity in the cabinet (1).
2. The detection method for the power distribution cabinet temperature and humidity detection device according to claim 1, characterized in that, The third gas pipe (504) is fixedly connected to the side wall of the driving cylinder (5).
3. The detection method of a power distribution cabinet temperature and humidity detection device according to claim 1, characterized in that, The cabinet (1) is fixedly connected with a viewing window (101), and the detection cylinder (4) is a transparent glass cylinder.
4. The detection method of a power distribution cabinet temperature and humidity detection device according to claim 3, characterized in that, The fourth gas pipe (401) is fixedly connected to the detection cylinder (4), and one-way valves are arranged on the fourth gas pipe (401) and the second gas pipe (402).
Citation Information
Patent Citations
Smart-household-equipment-based electric cabinet for early warning of electricity abnormality
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Digital low-voltage power distribution alarm device for intelligent power distribution cabinet
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