Damp-proof heat dissipation power distribution cabinet
By using industrial salt in a salt tank within the distribution cabinet for moisture absorption, drying, and heat treatment, the problem of component damage caused by moisture ingress was solved, achieving a low-cost, long-life distribution cabinet design.
Patent Information
- Application Number
- CN202423139049.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-19
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2034-12-19
AI Technical Summary
When existing power distribution cabinets dissipate heat through ventilation holes, external moisture can enter and damage internal electronic components. Furthermore, the cost of replacing the drying plate is high, and its service life is short.
Design a moisture-proof and heat-dissipating power distribution cabinet that utilizes industrial salt in a salt tank to absorb moisture and dry the salt, combines a heating plate and stirring blades to treat the wet salt, and achieves air drying through air inlet and outlet pipes. Equipped with temperature and humidity sensors and a PLC controller for automatic control.
It effectively reduces air humidity, extends the service life of the drying plate and distribution cabinet, reduces costs, and enables the salt to be reused.
Smart Images

Figure CN223625429U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of power distribution cabinet technology, specifically a moisture-proof and heat-dissipating power distribution cabinet. Background Technology
[0002] Distribution cabinets are crucial equipment in power systems used for power distribution, control, protection, and monitoring. They typically consist of switchgear, measuring instruments, protective devices, and auxiliary equipment assembled in enclosed or semi-enclosed metal cabinets or panels, forming low-voltage power distribution devices. With the continuous growth of electricity demand and the ongoing upgrading of power systems, distribution cabinets have become one of the most important pieces of equipment in power systems.
[0003] Existing power distribution cabinets typically dissipate heat by opening ventilation holes in the cabinet body. However, these ventilation holes can also introduce external moisture, which can damage internal electronic components and reduce the lifespan of the power distribution cabinet. To reduce the impact of moisture, a drying plate is usually installed inside the cabinet. However, the drying plate will deteriorate over time, and replacement is costly and uneconomical. Utility Model Content
[0004] The purpose of this utility model is to provide a moisture-proof and heat-dissipating power distribution cabinet. When dissipating heat, external air enters through the air inlet pipe, and after being dried by the industrial salt inside the salt tank, it is discharged from the bottom exhaust pipe. This can greatly reduce the air humidity, thereby extending the service life of the drying plate and the power distribution cabinet. When the humidity inside the salt tank is too high, the heating plate can be activated to heat the inside, causing the water absorbed by the salt to evaporate and be discharged from the exhaust pipe. This allows the industrial salt to be reused repeatedly at extremely low cost.
[0005] To achieve the above objectives, a moisture-proof and heat-dissipating power distribution cabinet is provided, comprising: a cabinet body; a front door is provided on the front side wall of the cabinet body; power distribution equipment is fixedly connected inside the cabinet body; a PLC controller is fixedly connected to the right side wall of the cabinet body; a drying plate is fixedly connected inside the cabinet body; the drying plate has multiple air holes evenly distributed on the drying plate; a side plate is fixedly connected to the front side wall of the drying plate and fixedly connected to the cabinet body; and a drying assembly is provided inside the cabinet body, the drying assembly including a salt tank, a main motor, a stirring shaft, stirring blades, an air inlet pipe, an air outlet pipe, and a temperature control unit. The salt tank comprises a humidity sensor, a bottom cover, a heating plate, an air outlet duct, and an inner filter. The tank is filled with industrial salt. A main motor, an air inlet duct, and an air outlet duct are fixedly connected to the top of the salt tank. A stirring shaft is rotatably connected inside the salt tank, and stirring blades are fixedly connected to the circumference of the stirring shaft. Multiple stirring blades are evenly distributed along the stirring shaft. A temperature and humidity sensor is fixedly connected to the inner circumference of the salt tank. A bottom cover and a heating plate are fixedly connected to the bottom of the salt tank. An air outlet duct is fixedly connected to the circumference of the salt tank, penetrating the salt tank, and an inner filter is fixedly connected inside the air outlet duct.
[0006] According to the aforementioned moisture-proof and heat-dissipating power distribution cabinet, there are two drying components, which are evenly distributed on the left side of the drying plate. An air pump is provided between the two drying components. The bottom of the air pump is fixedly connected to the cabinet body. An air inlet pipe is fixedly connected to the input end of the air pump, and an air outlet pipe is fixedly connected to the output end of the air pump. The air outlet pipe passes through the cabinet body and is equipped with a filter screen inside.
[0007] According to the aforementioned moisture-proof and heat-dissipating power distribution cabinet, the ends of the air inlet pipe and the air outlet pipe that are away from the salt tank pass through the cabinet body, and both are equipped with filter screens inside.
[0008] According to the aforementioned moisture-proof and heat-dissipating power distribution cabinet, the bottom cover is made of thermally conductive ceramic material, and the salt bucket, stirring shaft, and stirring blades are all made of ceramic material.
[0009] According to the aforementioned moisture-proof and heat-dissipating power distribution cabinet, the heating plate is located inside the bottom cover, and the air outlet pipe is located at the bottom of the salt tank.
[0010] According to the aforementioned moisture-proof and heat-dissipating power distribution cabinet, solenoid valves are installed on the air inlet pipe, air outlet pipe, air intake pipe, air exhaust pipe, and air outlet pipe. The solenoid valves, the air pump, and the main motor are all electrically connected to the PLC controller.
[0011] According to the aforementioned moisture-proof and heat-dissipating power distribution cabinet, the top of the stirring shaft is fixedly connected to the output end of the main motor.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] 1. By setting up a salt tank, main motor, stirring shaft, stirring blades, air inlet pipe, air outlet pipe and air outlet pipe, when heat dissipation is carried out, the outside air enters through the air inlet pipe, and after being dried by the industrial salt inside the salt tank, it is discharged from the bottom air outlet pipe, which can greatly reduce the air humidity, thereby extending the service life of the drying plate and the power distribution cabinet.
[0014] 2. By setting up temperature and humidity sensors, a bottom cover, a heating plate, an air outlet pipe, and an internal filter, the heating plate can be activated to heat the inside of the salt tank when the humidity is too high, causing the water absorbed by the salt to evaporate and be discharged from the air outlet pipe. This allows the industrial salt to be reused repeatedly at extremely low cost.
[0015] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description
[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments;
[0017] Figure 1 This is a front view of a moisture-proof and heat-dissipating power distribution cabinet according to this utility model;
[0018] Figure 2 This is a diagram showing the internal structure of a moisture-proof and heat-dissipating power distribution cabinet according to this utility model.
[0019] Figure 3 This is a cross-sectional view of the cabinet of a moisture-proof and heat-dissipating power distribution cabinet according to the present invention;
[0020] Figure 4 This is a cross-sectional view of the drying component of a moisture-proof and heat-dissipating power distribution cabinet according to this utility model.
[0021] In the diagram: 1. Cabinet; 2. Front door; 3. Power distribution equipment; 4. PLC controller; 5. Drying plate; 6. Air vent; 7. Side plate; 8. Drying assembly; 9. Air pump; 10. Air inlet pipe; 11. Air outlet pipe; 801. Salt tank; 802. Main motor; 803. Stirring shaft; 804. Stirring blade; 805. Air inlet pipe; 806. Air outlet pipe; 807. Temperature and humidity sensor; 808. Bottom cover; 809. Heating plate; 810. Air outlet pipe; 811. Inner filter. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.
[0023] Please see Figures 1-4 This utility model provides a technical solution: a moisture-proof and heat-dissipating power distribution cabinet, comprising: a cabinet body 1, a front door 2 provided on the front side wall of the cabinet body 1, power distribution equipment 3 fixedly connected inside the cabinet body 1, a PLC controller 4 fixedly connected on the right side wall inside the cabinet body 1, a drying plate 5 fixedly connected inside the cabinet body 1 for further drying of the gas passing through the drying plate 5, the drying plate 5 being provided with multiple air holes 6 evenly distributed on the drying plate 5, a side plate 7 fixedly connected to the front side wall of the drying plate 5, the side plate 7 being fixedly connected to the cabinet body 1, and a drying assembly 8 provided inside the cabinet body 1.
[0024] The drying assembly 8 includes a salt tank 801, a main motor 802, a stirring shaft 803, stirring blades 804, an air inlet pipe 805, an air outlet pipe 806, a temperature and humidity sensor 807, a bottom cover 808, a heating plate 809, an air outlet pipe 810, and an inner filter screen 811. The salt tank 801 is filled with industrial salt, which has good hygroscopic properties and can be reused after drying. The main motor 802, air inlet pipe 805, and air outlet pipe 806 are fixedly connected to the top of the salt tank 801. The stirring shaft 803 is rotatably connected inside the salt tank 801. The top of the stirring shaft 803 is fixedly connected to the output end of the main motor 802. Stirring blades 804 are fixedly connected to the circumference of the stirring shaft 803. Multiple stirring blades 804 are evenly distributed on the stirring shaft 803. When the industrial salt absorbs moisture and clumps together, the main motor 802 is started, and the stirring shaft 803 and the stirring blades 804 are used to circulate the salt. The mixing blade 804 crushes the salt blocks. The salt bucket 801, stirring shaft 803, and stirring blade 804 are all made of ceramic material, which is not corroded by brine. The air inlet pipe 805 and the air outlet pipe 806 pass through the cabinet 1 at the ends away from the salt bucket 801, and each is equipped with a filter screen inside. A temperature and humidity sensor 807 is fixedly connected to the inner circumference of the salt bucket 801 to monitor the internal humidity of the industrial salt. A bottom cover 808 and a heating plate 809 are fixedly connected to the bottom of the salt bucket 801. The bottom cover 808 is made of thermally conductive ceramic material to conduct the heat generated by the heating plate 809 and protect the heating plate 809. The heating plate 809 is located inside the bottom cover 808. The air outlet pipe 810 is located at the bottom of the salt bucket 801. The air outlet pipe 810 is fixedly connected to the circumference of the salt bucket 801 and passes through the salt bucket 801. An inner filter screen 811 is fixedly connected inside the air outlet pipe 810.
[0025] There are two drying components 8, which are evenly distributed on the left side of the drying plate 5. An air pump 9 is set between the two drying components 8. The bottom of the air pump 9 is fixedly connected to the cabinet 1. An air inlet pipe 10 is fixedly connected to the input end of the air pump 9, and an air outlet pipe 11 is fixedly connected to the output end of the air pump 9. The air outlet pipe 11 passes through the cabinet 1 and is equipped with a filter screen inside. When the air pump 9 is started, the air inside the cabinet 1 can be extracted, thereby forming an internal and external circulation to achieve the purpose of heat dissipation.
[0026] Solenoid valves are installed on the air inlet pipe 10, air outlet pipe 11, air inlet pipe 805, air outlet pipe 806 and air outlet pipe 810. The solenoid valves, air pump 9 and main motor 802 are all electrically connected to PLC controller 4.
[0027] Working principle: When dissipating heat inside the cabinet 1, the air pump 9 is started to extract the air from inside the cabinet 1, and the air inlet pipe 805 and the air outlet pipe 810 are opened, allowing outside air to enter the salt tank 801. After being humidified by the industrial salt inside, the air is discharged from the air outlet pipe 810, and then dried by the drying plate 5 before entering the cabinet 1. After a period of use, the humidity inside the salt tank 801 rises rapidly. Then, the heating plate 809 and the main motor 802 are started, and the exhaust pipe 806 is opened to heat the inside of the salt tank 801, causing the water to evaporate. Under the stirring of the stirring blade 804, the salt blocks are broken, allowing the industrial salt to be reused repeatedly.
[0028] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.
Claims
1. A moisture-proof and heat-dissipating power distribution cabinet, comprising: A cabinet (1) is characterized in that a front door (2) is provided on the front side wall of the cabinet (1), a power distribution device (3) is fixedly connected inside the cabinet (1), a PLC controller (4) is fixedly connected on the right side wall inside the cabinet (1), a drying plate (5) is fixedly connected inside the cabinet (1), air holes (6) are provided on the drying plate (5), the number of air holes (6) is set to multiple and evenly distributed on the drying plate (5), a side plate (7) is fixedly connected to the front side wall of the drying plate (5), the side plate (7) is fixedly connected to the cabinet (1), and a drying assembly (8) is provided inside the cabinet (1). The drying assembly (8) includes a salt tank (801), a main motor (802), a stirring shaft (803), a stirring blade (804), an air inlet pipe (805), an air outlet pipe (806), a temperature and humidity sensor (807), a bottom cover (808), a heating plate (809), and an air outlet pipe. (810) and an inner filter screen (811), the salt tank (801) is filled with industrial salt, the top of the salt tank (801) is fixedly connected to a main motor (802), an air inlet pipe (805) and an air outlet pipe (806), the inside of the salt tank (801) is rotatably connected to a stirring shaft (803), and stirring blades (804) are fixedly connected to the circumferential surface of the stirring shaft (803). The number of stirring blades (804) is set to multiple and uniformly. A temperature and humidity sensor (807) is fixedly connected to the inner circumference of the salt tank (801) and distributed on the stirring shaft (803). A bottom cover (808) and a heating plate (809) are fixedly connected to the inner bottom surface of the salt tank (801). An air outlet pipe (810) is fixedly connected to the circumference of the salt tank (801). The air outlet pipe (810) penetrates the salt tank (801). An inner filter screen (811) is fixedly connected inside the air outlet pipe (810).
2. The moisture-proof and heat-dissipating power distribution cabinet as described in claim 1, characterized in that: Two drying components (8) are provided and are evenly distributed on the left side of the drying plate (5). An air pump (9) is provided between the two drying components (8). The bottom of the air pump (9) is fixedly connected to the cabinet (1). An air inlet pipe (10) is fixedly connected to the input end of the air pump (9). An air outlet pipe (11) is fixedly connected to the output end of the air pump (9). The air outlet pipe (11) passes through the cabinet (1) and is equipped with a filter screen inside.
3. The moisture-proof and heat-dissipating power distribution cabinet as described in claim 1, characterized in that: The air inlet pipe (805) and the air outlet pipe (806) pass through the cabinet (1) at the end away from the salt tank (801), and both are equipped with filter screens inside.
4. The moisture-proof and heat-dissipating power distribution cabinet as described in claim 1, characterized in that: The bottom cover (808) is made of thermally conductive ceramic material, and the salt tank (801), stirring shaft (803) and stirring blade (804) are all made of ceramic material.
5. A moisture-proof and heat-dissipating power distribution cabinet as described in claim 1, characterized in that: The heating plate (809) is located inside the bottom cover (808), and the air outlet pipe (810) is located at the bottom of the salt tank (801).
6. A moisture-proof and heat-dissipating power distribution cabinet as described in claim 2, characterized in that: Solenoid valves are installed on the air inlet pipe (10), air outlet pipe (11), air inlet pipe (805), air outlet pipe (806) and air outlet pipe (810). The solenoid valves, air pump (9) and main motor (802) are all electrically connected to the PLC controller (4).
7. A moisture-proof and heat-dissipating power distribution cabinet as described in claim 1, characterized in that: The top of the stirring shaft (803) is fixedly connected to the output end of the main motor (802).