Electrical switch cabinet with high protection performance
By introducing an automatic desiccant replacement system with a weight monitor and PLC control box into the electrical switchgear, the problem of frequent desiccant replacement in traditional systems has been solved, achieving long-term drying inside the electrical switchgear and reducing maintenance workload.
Patent Information
- Application Number
- CN202520312901.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-26
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-02-26
AI Technical Summary
Traditional desiccants need to be replaced frequently after becoming saturated with water in electrical switchgear, resulting in a large amount of maintenance work and limited water absorption effect.
An automatic desiccant replacement system, which combines a weight monitor and a PLC control box, automatically replaces the desiccant through a lower discharge pipe and an upper feed pipe, ensuring that the desiccant maintains good drying effect during long-term use and extending the replacement interval.
This ensures that the interior of the electrical switchgear remains dry during long-term use, reducing the frequency and workload of maintenance for staff.
Smart Images

Figure CN223942233U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of electrical cabinet technology, specifically relating to a highly protective electrical switch cabinet. Background Technology
[0002] Electrical switchgear is a complete set of power distribution equipment assembled from primary and secondary equipment according to a certain circuit scheme. It is used to control, protect and measure lines and equipment, and plays a vital role in the power system. When installing electrical switchgear in some humid climates, in order to reduce the damage caused by humid air to the working components inside the switchgear, the switchgear is dried. Currently, some common methods involve installing or placing desiccants inside the cabinet. However, traditional desiccants such as silicone bags have limited water absorption effect and become saturated after absorbing a certain amount of moisture, requiring frequent replacement, resulting in a large amount of maintenance work and inconvenience. Utility Model Content
[0003] This utility model provides a highly protective electrical switch cabinet that can replace the saturated desiccant particles inside during long-term use, ensuring that the internal environment of the entire electrical switch cabinet remains in a dry state over a long period of use. It also extends the time interval for workers to replace the desiccant particles in the storage compartment, reducing the workload of workers.
[0004] This utility model provides the following technical solution: a highly protective electrical switch cabinet, including an electrical mounting cabinet, a mounting base fixedly connected to the bottom of the electrical mounting cabinet, desiccant storage compartments embedded on both sides of the electrical mounting cabinet, and the bottom of the desiccant storage compartments extending into the interior of the mounting base, a weight monitor installed inside the mounting base, and the bottom of the desiccant storage compartments located at the top of the weight monitor, a lower discharge pipe fixedly connected to one side of the lower end of the desiccant storage compartments, and the bottom of the lower discharge pipe penetrating to the outside of the mounting base, a storage box fixedly connected to the top of the electrical mounting cabinet, and an upper feed pipe symmetrically fixedly connected to the bottom of the storage box, and the bottom of the upper feed pipe penetrating into the interior of the desiccant storage compartments, and a PLC control box fixedly connected to one side of the electrical mounting cabinet, and the PLC control box connected to the weight monitor via a connecting cable.
[0005] The bottom of the mounting base is fixedly connected to a storage box, which is buried underground. The bottom of the lower discharge pipe extends into the interior of the storage box, and a sealing plate is hinged to the top of the storage box.
[0006] The lower discharge pipe is fixedly connected to a first electric valve, and the first electric valve is connected to the PLC control box via a connecting line.
[0007] The mounting base has an internal mounting groove, and the weight monitor is fixedly connected to the inside of the mounting groove.
[0008] The bottom of the weight monitor is fixedly connected to a moisture-proof pad.
[0009] A protective pad is fixedly connected between the outer side of the weight monitor and the inner cavity of the mounting groove.
[0010] The upper feed pipe is fixedly connected to a second electric valve, which is connected to the PLC control box via a connecting line. The top of the storage box is threaded with a sealing cover.
[0011] The beneficial effects of this utility model are: with the cooperation of the weight monitor, PLC control box, first electric valve, and second electric valve, the desiccant storage bin can be automatically replaced, so that the desiccant storage bin can maintain a good dry adsorption state during long-term use, avoiding the adverse effects on the subsequent drying of the air in the electrical installation cabinet caused by the desiccant storage bin becoming saturated. At the same time, it can extend the time interval for the operator to replace the desiccant storage bin, reducing the workload of the operator.
[0012] The parts of the device not covered herein are the same as or can be implemented using existing technologies. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the front cross-sectional structure of this utility model;
[0014] Figure 2 This is a schematic diagram of the main structure of this utility model;
[0015] Figure 3 This utility model Figure 1 Enlarged diagram showing details of section A.
[0016] In the diagram: 1. Electrical installation cabinet; 11. Mounting base; 111. Mounting slot; 2. Desiccant storage bin; 21. Lower discharge pipe; 22. First solenoid valve; 3. Weight monitor; 31. Protective pad; 32. Moisture-proof pad; 4. Storage bin; 41. Upper feed pipe; 411. Second solenoid valve; 42. Sealing cover; 5. Storage bin; 51. Sealing plate; 6. PLC control box. Detailed Implementation
[0017] Please see Figures 1-3The present invention provides the following technical solution: a highly protective electrical switch cabinet, including an electrical installation cabinet 1, a mounting base 11 fixedly connected to the bottom of the electrical installation cabinet 1, desiccant storage compartments 2 embedded on both sides of the electrical installation cabinet 1, and the bottom of the desiccant storage compartments 2 extending into the interior of the mounting base 11, a weight monitor 3 installed inside the mounting base 11, and the bottom of the desiccant storage compartments 2 located at the top of the weight monitor 3, a lower discharge pipe 21 fixedly connected to one side of the lower end of the desiccant storage compartments 2, and the bottom of the lower discharge pipe 21 penetrating to the outside of the mounting base 11, a storage box 4 fixedly connected to the top of the electrical installation cabinet 1, and an upper feed pipe 41 symmetrically fixedly connected to the bottom of the storage box 4, and the bottom of the upper feed pipe 41 penetrating into the interior of the desiccant storage compartments 2, and a PLC control box 6 fixedly connected to one side of the electrical installation cabinet 1, and the PLC control box 6 connected to the weight monitor 3 via a connecting cable.
[0018] In this implementation scheme: Electrical installation cabinet 1 is the external cabinet of the entire electrical switch cabinet, providing installation space and connection carriers for various electrical devices. Desiccant storage compartment 2, located within electrical installation cabinet 1, provides storage space for desiccant particles. During use, the desiccant particles in storage compartment 2 are used to dry the air within electrical installation cabinet 1, reducing the moisture content. The mounting base 11 at the bottom of electrical installation cabinet 1 serves as the bottom support for the entire electrical cabinet and also provides installation space for the weight monitor 3. The weight monitor 3, installed in mounting base 11, measures the overall weight of desiccant storage compartment 2 in real time. When the desiccant particles in storage compartment 2 are drying the air within electrical installation cabinet 1, they absorb moisture from the air, increasing the moisture content and overall weight of the desiccant particles. During the drying process of the air within electrical installation cabinet 1, the desiccant... The overall weight of storage chamber 2 changes in the initial and later stages. Weight monitor 3 is used to monitor the overall weight of desiccant storage chamber 2 in real time. The lower discharge pipe 21 located at the lower end of desiccant storage chamber 2 is used to discharge the desiccant particles in desiccant storage chamber 2 to the outside, so that the saturated desiccant particles in storage chamber 2 can be discharged and replaced. The storage box 4 located at the top of electrical installation cabinet 1 is used to provide temporary storage space for new desiccant particles, so that new desiccant particles can be added to desiccant storage chamber 2 during long-term use. The PLC control box 6 located outside electrical installation cabinet 1 is used to process the real-time data monitored by weight monitor 3. At this time, the desiccant particles in storage chamber 2 can be replaced during long-term use, so that the internal environment of the entire electrical switch cabinet can maintain a good dry state during long-term use. At the same time, it can extend the time interval for the operator to replace the desiccant particles in storage chamber 2, reducing the workload of the operator.
[0019] The bottom of the mounting base 11 is fixedly connected to the storage box 5, and the storage box 5 is buried underground. The bottom of the lower discharge pipe 21 extends into the interior of the storage box 5, and the top of the storage box 5 is hinged with a sealing plate 51. The storage box 5 is used to provide temporary storage space for the saturated desiccant particles discharged from the desiccant storage chamber 2. The staff can clean the particles in the storage box 5 regularly. When cleaning the particles in the storage box 5, the staff can clean the saturated particles accumulated in the storage box 5 through the sealing plate 51.
[0020] A first electric valve 22 is fixedly connected to the lower discharge pipe 21, and the first electric valve 22 is connected to the PLC control box 6 through a connecting line; wherein the first electric valve 22 is used to regulate the opening and closing of the passage of the lower discharge pipe 21.
[0021] The mounting base 11 has a mounting slot 111 inside, and the weight monitor 3 is fixedly connected inside the mounting slot 111; wherein the mounting slot 111 is used to provide space for the weight monitor 3 to be installed.
[0022] A moisture-proof pad 32 is fixedly connected to the bottom of the weight monitor 3; the moisture-proof pad 32 serves to prevent moisture.
[0023] A protective pad 31 is fixedly connected between the outer side of the weight monitor 3 and the inner cavity of the mounting groove 111; the protective pad 31 serves a protective function.
[0024] A second electric valve 411 is fixedly connected to the upper feed pipe 41, and the second electric valve 411 is connected to the PLC control box 6 through a connecting line. A sealing cover 42 is threadedly connected to the top of the storage box 4. The second electric valve 411 is used to regulate the opening and closing of the upper feed pipe 41. When the operator needs to add dry particles to the sealing cover 42, the particles can be added to the inside of the storage box 4 through the sealing cover 42.
[0025] The working principle and usage process of this utility model are as follows: During the use of the entire electrical cabinet, the drying particles in the desiccant storage chamber 2 can adsorb water molecules in the air of the electrical installation cabinet 1, keeping the interior of the electrical installation cabinet 1 dry. Both the electrical installation cabinet 1 and the inner wall of the desiccant storage chamber 2 have through holes to provide a channel for air circulation. During the drying process of the air by the drying particles in the desiccant storage chamber 2, the weight monitor 3 monitors the overall weight of the desiccant storage chamber 2 in real time. When the overall weight of the desiccant storage chamber 2 reaches a preset value, the PLC control box 6 sends an opening command to the first solenoid valve 22. Subsequently, the saturated drying particles in the desiccant storage chamber 2 are discharged to the storage bin 5 through the lower discharge pipe 21. Inside the desiccant storage chamber 2, when the weight monitor 3 detects that the desiccant storage chamber 2 has been emptied through real-time weight monitoring, the PLC control box 6 sends a closing command to the first solenoid valve 22 and an opening command to the second solenoid valve 411. At this time, new desiccant particles enter the desiccant storage chamber 2 from the storage box 4. When the monitoring data of the weight monitor 3 reaches the initial preset value, the PLC control box 6 sends a closing command to the second solenoid valve 411. In this process, the desiccant particles in the storage chamber 2 can be replaced once. During routine maintenance, the staff can remove the saturated particles in the storage box 5 through the sealing plate 51 and add new desiccant particles into the storage box 4 through the sealing cover 42.
Claims
1. A highly protective electrical switchgear, comprising an electrical mounting cabinet (1), characterized in that: The electrical installation cabinet (1) is fixedly connected to a mounting base (11) at its bottom. Desiccant storage compartments (2) are embedded on both sides of the electrical installation cabinet (1), and the bottom of each desiccant storage compartment (2) extends into the interior of the mounting base (11). A weight monitor (3) is installed inside the mounting base (11), and the bottom of each desiccant storage compartment (2) is located at the top of the weight monitor (3). A lower discharge pipe (21) is fixedly connected to one side of the lower end of each desiccant storage compartment (2). The bottom of the lower discharge pipe (21) extends through to the outside of the mounting base (11). The top of the electrical installation cabinet (1) is fixedly connected to a storage box (4), and the bottom of the storage box (4) is symmetrically fixedly connected to an upper feed pipe (41). The bottom of the upper feed pipe (41) extends through to the inside of the desiccant storage chamber (2). A PLC control box (6) is fixedly connected to one side of the electrical installation cabinet (1), and the PLC control box (6) is connected to the weight monitor (3) via a connecting line.
2. The highly protective electrical switchgear according to claim 1, characterized in that: The bottom of the mounting base (11) is fixedly connected to a storage box (5), and the storage box (5) is buried underground. The bottom of the lower discharge pipe (21) extends into the interior of the storage box (5), and a sealing plate (51) is hinged to the top of the storage box (5).
3. The highly protective electrical switchgear according to claim 2, characterized in that: The lower discharge pipe (21) is fixedly connected to a first electric valve (22), and the first electric valve (22) is connected to the PLC control box (6) via a connecting line.
4. The highly protective electrical switchgear according to claim 1, characterized in that: The mounting base (11) has an internal mounting groove (111), and the weight monitor (3) is fixedly connected to the inside of the mounting groove (111).
5. The highly protective electrical switchgear according to claim 1, characterized in that: A moisture-proof pad (32) is fixedly connected to the bottom of the weight monitor (3).
6. The highly protective electrical switchgear according to claim 4, characterized in that: A protective pad (31) is fixedly connected between the outer side of the weight monitor (3) and the inner cavity of the mounting groove (111).
7. The highly protective electrical switchgear according to claim 1, characterized in that: A second electric valve (411) is fixedly connected to the upper feed pipe (41), and the second electric valve (411) is connected to the PLC control box (6) through a connecting line. A sealing cover (42) is threadedly connected to the top of the storage box (4).