Overload protection power control cabinet
Through the coordination of the design of the opening mechanism and the deflector, the problem of arcing generated by the power control cabinet during overload protection is solved, the stable operation and cooling of the equipment is achieved, and the safety and service life of the power system are improved.
Patent Information
- Application Number
- CN202510508116.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-22
- Publication Date
- 2025-07-22
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
During the overload protection process of existing power control cabinets, due to the large overload current, an arc occurs when the gate is opened, resulting in an increase in the contact point melting resistance, affecting the current conductivity after closing, causing the line to heat up, and affecting the stable and safe operation of the power system.
An overload protection power control cabinet is designed, including a gate opening mechanism, a positioning mechanism and a deflector. Through the cooperation of sliding rods, support plates and magnets, rapid gate opening and closing are achieved to prevent arcing, and air is diverted and cooled through the deflector to ensure stable operation of the equipment.
It effectively prevents the generation of arcs during the opening process, increases the safety and service life of the equipment, ensures the stable output and cooling efficiency of the power control cabinet under overload, and improves the safety and reliability of the power system.
Smart Images
Figure CN120357381A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of overload protection, and specifically to an overload protection power control cabinet. Background Art
[0002] In the development process of the power industry, with the increasing complexity of the power system, the power fluctuations and other situations faced by electrical equipment during operation have increased. To meet the urgent needs for the stable operation of the power system and the safe operation of equipment, the overload protection power control cabinet has emerged, ensuring the safe and stable operation of power equipment.
[0003] The patent application with the application number CN202221466473.7 discloses a control cabinet with an overload protection structure, including a cabinet body, a bottom plate and an overload protector. The bottom end of the cabinet body is installed with a bottom plate, the middle part of the top end of the bottom plate is fixedly connected with the cabinet body, the four weeks of the top end of the cabinet body are respectively fixedly connected with the bottom ends of support rods, the top ends of the support rods are installed with a top plate, the four weeks of the bottom end of the bottom plate are respectively fixedly connected with the support rods, and circular holes are evenly distributed on the top end of the cabinet body.
[0004] However, in the process of overload protection of the existing power control cabinet, due to the large overload current, electric arcs are generated during opening, resulting in the melting of the contact points and an increase in resistance, affecting the current conductivity after closing, causing the circuit to heat up, and affecting the stable and safe operation of the power system. Summary of the Invention
[0005] The purpose of the present invention is to provide an overload protection power control cabinet to solve the problems raised in the above background art.
[0006] To achieve the above purpose, the present invention provides the following technical solution: An overload protection power control cabinet, including a cabinet body, an air inlet is opened on the outer wall of the cabinet body, an air outlet is opened on the top of the cabinet body, a cabinet door is connected to the outer wall of the cabinet body through a hinge, a cylinder is fixedly connected to the inner wall of the cabinet body, a positioning mechanism is arranged on the inner wall of the cabinet body, and further includes: A tripping mechanism, the tripping mechanism is fixedly connected to the output end of the cylinder, the tripping mechanism includes a sliding rod one, a support plate five is fixedly connected to the outer wall of the sliding rod one, a support plate six is fixedly connected to the outer wall of the support plate five, a sliding groove two is opened on the surface of the support plate six, a sliding rod two is slidably connected to the groove wall of the sliding groove two, a support plate seven is fixedly connected to the top of the sliding rod two, a docking block is fixedly connected to the surface of the support plate seven, a spring two is fixedly connected to the outer wall of the sliding rod two, the other end of the spring two is fixedly connected to the support plate six, a notch is opened on the surface of the support plate six, the sliding rod one is used to support the support plate five, and the support plate seven is used to support the docking block.
[0007] According to the above technical solution, a first support plate is fixedly connected to the inner wall of the cabinet. A diversion opening is formed at the bottom of the first support plate. A diversion plate is fixedly connected to the bottom of the inner wall of the cabinet. A motor is fixedly connected to the bottom of the inner wall of the cabinet. The output end of the motor is fixedly connected to a fan. The diversion plate is used for diverting air.
[0008] According to the above technical solution, the positioning mechanism includes a second support plate. A guiding hole is formed in the outer wall of the second support plate. A fourth support plate is fixedly connected to the outer wall of the second support plate. An assembly groove is formed in the surface of the fourth support plate. A positioning hole is formed at the bottom of the fourth support plate. A magnet is fixedly connected to the wall of the assembly groove. The magnet is used for closing and adsorbing.
[0009] According to the above technical solution, a first sliding groove is formed in the outer wall of the fourth support plate. A third support plate is slidably connected to the wall of the first sliding groove through a slider. The third support plate is used for supporting the electronic control element.
[0010] According to the above technical solution, the output end of the cylinder is fixedly connected to the outer wall of a fifth support plate. The outer wall of the fifth support plate is slidably connected to the inner wall of the second support plate. A first spring is fixedly connected to the outer wall of the first sliding rod. The other end of the first spring is fixedly connected to the outer wall of the second support plate. The outer wall of the first sliding rod is slidably connected to the wall of the guiding hole. The cylinder is used for supporting the fifth support plate. The guiding hole is used for guiding the first sliding rod.
[0011] According to the above technical solution, the bottom of the fan is fixedly connected to the bottom of the cabinet through a bearing. The fan is used for diverting air.
[0012] According to the above technical solution, the bottom of the second support plate is fixedly connected to the inner wall of the first support plate. The positioning hole penetrates through the bottom of the fourth support plate and is internally connected to the assembly groove. The positioning hole is used for guiding the positioning block.
[0013] According to the above technical solution, the bottom of the third support plate protrudes from the bottom of the fourth support plate. The fourth support plate is used for limiting the third support plate.
[0014] Compared with the prior art, the beneficial effects of the present invention are: 1. For this overload protection power control cabinet, the power equipment inside the power control cabinet is protected by the opening mechanism during opening, ensuring that the power equipment inside the control cabinet stably outputs overload, and preventing the occurrence of electric arcs during the opening process due to the increase in overload current, resulting in damage to the terminals and an increase in resistance, affecting subsequent current output, and increasing the safety of the overload use of the power control cabinet.
[0015] 2. The overload protection power control cabinet quickly positions the opening mechanism through the positioning mechanism and quickly closes the switch by means of strong magnetic adsorption, preventing the opening mechanism from being too slow during the closing process, resulting in electric arcs generated by the current spreading through the air, damaging the terminals, increasing the service life of the power control cabinet, and enabling the power control cabinet to stably output electricity.
[0016] 3. The overload protection power control cabinet guides the air through the flow guide plate and the second support plate, allowing cold air to enter from the bottom of the control cabinet and exit from the top, cooling the control cabinet, enabling the equipment to output at a stable temperature during overload output, and separating and cooling the power equipment and lines after opening the switch, increasing the cooling speed of the control cabinet.
[0017] 4. The overload protection power control cabinet cooperates with the positioning mechanism and the opening mechanism, enabling the control cabinet to separate and cool down after opening the switch, and at the same time providing stable support after closing the switch, preventing vibrations generated after the power equipment is closed from causing poor electrical contact, and enabling the overload protection power control cabinet to stably protect the power equipment against overload. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 is a schematic structural diagram of the present invention Figure 1 ; Figure 2 is a schematic structural diagram of the present invention Figure 2 ; Figure 3 is a sectional view of the present invention Figure 1 ; Figure 4 is a sectional view of the present invention Figure 2 ; Figure 5 is a sectional view of the present invention Figure 3 ; Figure 6 is a schematic structural diagram of the positioning mechanism of the present invention; Figure 7 is a schematic structural diagram of the opening mechanism of the present invention; Figure 8 is a sectional view of the opening mechanism of the present invention.
[0019] In the figure: 1. Cabinet body; 101. Cabinet door; 102. Air inlet; 103. Air outlet; 104. First support plate; 105. Deflector; 106. Diverging port; 107. Fan; 108. Motor; 109. Cylinder; 2. Positioning mechanism; 201. Second support plate; 202. Guide hole; 203. Assembly groove; 204. Positioning hole; 205. First sliding groove; 206. Third support plate; 207. Magnet; 208. Fourth support plate; 3. Switching-off mechanism; 301. First sliding rod; 302. First spring; 303. Fifth support plate; 304. Sixth support plate; 305. Second sliding rod; 306. Seventh support plate; 307. Second spring; 308. Docking block; 309. Positioning block; 310. Notch; 311. Second sliding groove. Detailed implementation manners
[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.
[0021] Embodiment 1. Please refer to Figure 1 With Figure 5 And Figures 7 - 8 , the present invention provides a technical solution: an overload protection power control cabinet, including a cabinet body 1, an air inlet 102 is opened on the outer wall of the cabinet body 1, an air outlet 103 is opened at the top of the cabinet body 1, a cabinet door 101 is connected to the outer wall of the cabinet body 1 through a hinge, a cylinder 109 is fixedly connected to the inner wall of the cabinet body 1, a positioning mechanism 2 is arranged on the inner wall of the cabinet body 1, and further includes: The opening mechanism 3 is fixedly connected to the output end of the cylinder 109. The opening mechanism 3 includes a first sliding rod 301. A fifth support plate 303 is fixedly connected to the outer wall of the first sliding rod 301. A sixth support plate 304 is fixedly connected to the outer wall of the fifth support plate 303. A second sliding groove 311 is formed on the surface of the sixth support plate 304. A second sliding rod 305 is slidably connected to the groove wall of the second sliding groove 311. A seventh support plate 306 is fixedly connected to the top of the second sliding rod 305. A docking block 308 is fixedly connected to the surface of the seventh support plate 306. A second spring 307 is fixedly connected to the outer wall of the second sliding rod 305. The other end of the second spring 307 is fixedly connected to the sixth support plate 304. A notch 310 is formed on the surface of the sixth support plate 304. The first sliding rod 301 is used to support the fifth support plate 303, and the seventh support plate 306 is used to support the docking block 308. When the overload protection power control cabinet is put into use, the overload electrical control component is installed on the surface of the third support plate 206. The input wire of the control component is connected to the power output end through the back of the outer wall of the second support plate 201. The output wire of the control component passes through the notch 310 and is fixedly connected to the bottom of the seventh support plate 306 and the bottom of the docking block 308. After the output wire connection is completed, the cylinder 109 is started to drive the fifth support plate 303 to slide inside the second support plate 201. The second support plate 201 compresses the first spring 302 through the first sliding rod 301 and slides inside the guiding hole 202 to guide the fifth support plate 303. The fifth support plate 303 drives the positioning block 309 to slide to the positioning hole 204, and the positioning block 309 is adsorbed by the magnet 207, so that the positioning block 309 drives the second sliding rod 305 to compress the second spring 307 and slide upward inside the second sliding groove 311 through the seventh support plate 306. The positioning block 309 is adsorbed into the positioning hole 204 by the magnet 207, so that the seventh support plate 306 drives the docking block 308 to contact the bottom of the third support plate 206 for closing. At the moment of closing, the bottom of the third support plate 206 is supported by the docking block 308, driving the third support plate 206 to slide inside the first sliding groove 205, and the third support plate 206 is limited by the first sliding groove 205, so that the impact on the control component at the moment of closing is buffered, and the closing is completed. When the electrical component is overloaded, the motor 108 is started to drive the fan 107 to suck air into the cabinet 1 from the air inlet 102, and the air is guided by the flow guide plate 105 to the bottom of the first support plate 104, and the air is shunted by the shunt port 106 and the second support plate 201, so that the air flows upward from the bottom of the electronic control component, and the hot air accumulated at the top of the cabinet 1 is discharged from the air outlet 103 to cool the electronic control component. At the same time, the cylinder 109 retracts, driving the positioning block 309 to leave the positioning hole 204 and the adsorption of the magnet 207, and the second sliding rod 305 is squeezed by the second spring 307 to slide inside the second sliding groove 311, so that the docking plate air drives the docking block 308 to instantly leave the third support plate 206 to prevent arcing. After the opening is completed, the cylinder 109 drives the fifth support plate 303 to contact the inner wall of the second support plate 201, separating the wire from the control component for heat dissipation.After the opening operation is completed and it is confirmed that there is no error after the maintenance inspection, start the cylinder 109 for closing; The output end of the cylinder 109 is fixedly connected to the outer wall of the fifth support plate 303. The outer wall of the fifth support plate 303 is slidably connected to the inner wall of the second support plate 201. One end of a first spring 302 is fixedly connected to the outer wall of the first sliding rod 301, and the other end of the first spring 302 is fixedly connected to the outer wall of the second support plate 201. The outer wall of the first sliding rod 301 is slidably connected to the inner wall of the guiding hole 202. The cylinder 109 is used to support the fifth support plate 303, and the guiding hole 202 is used to guide the first sliding rod 301. After the inspection of the electronic control components is completed, the closing operation is performed. By starting the cylinder 109, the fifth support plate 303 is driven to slide on the inner wall of the second support plate 201. The second support plate 201 compresses the first spring 302 through the first sliding rod 301 and slides on the inner wall of the guiding hole 202 to guide the fifth support plate 303. The fifth support plate 303 drives the positioning block 309 to slide to the positioning hole 204, and the positioning block 309 is adsorbed by the magnet 207, so that the positioning block 309 drives the second sliding rod 305 through the seventh support plate 306 to compress the second spring 307 and slide upward on the inner wall of the second sliding groove 311. The positioning block 309 is adsorbed into the positioning hole 204 by the magnet 207, so that the seventh support plate 306 drives the docking block 308 to contact the bottom of the third support plate 206.
[0022] Embodiment 2, based on Embodiment 1, please refer to Figures 2 - 4 A technical solution provided by the present invention is as follows: A first support plate 104 is fixedly connected to the inner wall of the cabinet body 1. A diversion port 106 is opened at the bottom of the first support plate 104. A diversion plate 105 is fixedly connected to the bottom of the inner wall of the cabinet body 1. A motor 108 is fixedly connected to the bottom of the inner wall of the cabinet body 1. The output end of the motor 108 is fixedly connected to a fan 107. The diversion plate 105 is used to divert air. When the electrical components are overloaded, the motor 108 is started to drive the fan 107 to suck air into the cabinet body 1 from the air inlet 102. The air is diverted by the diversion plate 105 and flows to the bottom of the first support plate 104. The air is diverted by the diversion port 106 and the second support plate 201, so that the air flows upward from the bottom of the electronic control components, and the hot air accumulated at the top of the cabinet body 1 is discharged from the air outlet 103 to cool the electronic control components; The bottom of the fan 107 is fixedly connected to the bottom of the cabinet body 1 through a bearing. The fan 107 is used to divert air. By diverting air through the fan 107, the air is sucked into the cabinet body 1 from the air inlet 102. The air is diverted by the diversion plate 105 and flows to the bottom of the first support plate 104. The air is diverted by the diversion port 106 and the second support plate 201, so that the air flows upward from the bottom of the electronic control components, and the hot air accumulated at the top of the cabinet body 1 is discharged from the air outlet 103 to cool the electronic control components.
[0023] Embodiment 3, based on Embodiment 1 and Embodiment 2, please refer to Figure 6, the present invention provides a technical solution: The positioning mechanism 2 includes a second support plate 201. A guiding hole 202 is formed in the outer wall of the second support plate 201. A fourth support plate 208 is fixedly connected to the outer wall of the second support plate 201. An assembly groove 203 is formed in the surface of the fourth support plate 208. A positioning hole 204 is formed in the bottom of the fourth support plate 208. A magnet 207 is fixedly connected to the groove wall of the assembly groove 203. The magnet 207 is used for closing and adsorbing. After the electrical control element inspection is completed, closing is performed. By starting the cylinder 109, the fifth support plate 303 is driven to slide on the inner wall of the second support plate 201. The second support plate 201 slides on the inner wall of the guiding hole 202 by compressing the first spring 302 through the first sliding rod 301 to guide the fifth support plate 303. The fifth support plate 303 drives the positioning block 309 to slide to the positioning hole 204. The positioning block 309 is adsorbed by the magnet 207, so that the positioning block 309 drives the second sliding rod 305 to compress the second spring 307 and slide upward on the inner wall of the second sliding groove 311 through the seventh support plate 306. The positioning block 309 is adsorbed into the positioning hole 204 by the magnet 207, so that the seventh support plate 306 drives the docking block 308 to contact the bottom of the third support plate 206 for closing. At the moment of closing, the bottom of the third support plate 206 is supported by the docking block 308, driving the third support plate 206 to slide on the inner wall of the first sliding groove 205, and the third support plate 206 is limited by the first sliding groove 205 on the surface of the fourth support plate 208, so as to buffer the impact on the control element at the moment of closing; A first sliding groove 205 is formed in the outer wall of the fourth support plate 208. The third support plate 206 is slidably connected to the groove wall of the first sliding groove 205 through a slider. The third support plate 206 is used to support the electrical control element. At the moment of closing, the bottom of the third support plate 206 is supported by the docking block 308, driving the third support plate 206 to slide on the inner wall of the first sliding groove 205, and the third support plate 206 is limited by the first sliding groove 205 formed on the surface of the fourth support plate 208, so as to buffer the impact on the control element at the moment of closing; The bottom of the second support plate 201 is fixedly connected to the inner wall of the first support plate 104. The positioning hole 204 penetrates through the bottom of the fourth support plate 208 and is internally connected to the assembly groove 203. The positioning hole 204 is used to guide the positioning block 309. During the closing process, the positioning block 309 is adsorbed by the magnet 207, so that the positioning block 309 drives the second sliding rod 305 to compress the second spring 307 and slide upward on the inner wall of the second sliding groove 311 through the seventh support plate 306. The positioning block 309 is adsorbed into the positioning hole 204 by the magnet 207, so that the seventh support plate 306 drives the docking block 308 to contact the bottom of the third support plate 206 for closing; The bottom of the third support plate 206 protrudes from the bottom of the fourth support plate 208. The fourth support plate 208 is used to limit the third support plate 206. During the closing process, the seventh support plate 306 drives the docking block 308 to contact the bottom of the third support plate 206, driving the third support plate 206 to slide on the inner wall of the first sliding groove 205. The fourth support plate 208 limits the third support plate 206 to buffer the impact on the control element at the moment of closing.
[0024] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. An overload protection power control cabinet, comprising a cabinet body (1), an air inlet (102) is formed on the outer wall of the cabinet body (1), an air outlet (103) is formed on the top of the cabinet body (1), a cabinet door (101) is connected to the outer wall of the cabinet body (1) through a hinge, and a cylinder (109) is fixedly connected to the inner wall of the cabinet body (1), characterized in that, The inner wall of the cabinet body (1) is provided with a positioning mechanism (2), and further includes: A tripping mechanism (3), the tripping mechanism (3) is fixedly connected to the output end of the air cylinder (109), the tripping mechanism (3) includes a first sliding rod (301), a fifth support plate (303) is fixedly connected to the outer wall of the first sliding rod (301), a sixth support plate (304) is fixedly connected to the outer wall of the fifth support plate (303), a second sliding groove (311) is formed on the surface of the sixth support plate (304), a second sliding rod (305) is slidably connected to the groove wall of the second sliding groove (311), a seventh support plate (306) is fixedly connected to the top of the second sliding rod (305), a docking block (308) is fixedly connected to the surface of the seventh support plate (306), a second spring (307) is fixedly connected to the outer wall of the second sliding rod (305), the other end of the second spring (307) is fixedly connected to the sixth support plate (304), a notch (310) is formed on the surface of the sixth support plate (304), the first sliding rod (301) is used to support the fifth support plate (303), and the seventh support plate (306) is used to support the docking block (308).
2. An overload protection power control cabinet according to claim 1, characterized in that: A first support plate (104) is fixedly connected to the inner wall of the cabinet body (1), a diversion port (106) is formed at the bottom of the first support plate (104), a diversion plate (105) is fixedly connected to the bottom of the inner wall of the cabinet body (1), a motor (108) is fixedly connected to the bottom of the inner wall of the cabinet body (1), a fan (107) is fixedly connected to the output end of the motor (108), and the diversion plate (105) is used to divert air.
3. An overload protection power control cabinet according to claim 1, characterized in that: The positioning mechanism (2) includes a second support plate (201), a guiding hole (202) is formed on the outer wall of the second support plate (201), a fourth support plate (208) is fixedly connected to the outer wall of the second support plate (201), an assembly groove (203) is formed on the surface of the fourth support plate (208), a positioning hole (204) is formed at the bottom of the fourth support plate (208), a magnet (207) is fixedly connected to the groove wall of the assembly groove (203), and the magnet (207) is used for closing and adsorption.
4. An overload protection power control cabinet according to claim 3, characterized in that: A first sliding groove (205) is formed on the outer wall of the fourth support plate (208), a third support plate (206) is slidably connected to the groove wall of the first sliding groove (205) through a slider, and the third support plate (206) is used to support the electronic control element.
5. An overload protection power control cabinet according to claim 1, characterized in that: The output end of the air cylinder (109) is fixedly connected to the outer wall of the fifth support plate (303), the outer wall of the fifth support plate (303) is slidably connected to the inner wall of the second support plate (201), a first spring (302) is fixedly connected to the outer wall of the first sliding rod (301), the other end of the first spring (302) is fixedly connected to the outer wall of the second support plate (201), the outer wall of the first sliding rod (301) is slidably connected to the hole wall of the guiding hole (202), the air cylinder (109) is used to support the fifth support plate (303), and the guiding hole (202) is used to guide the first sliding rod (301).
6. The overload protection power control cabinet according to claim 2, characterized in that: The bottom of the fan (107) is fixedly connected to the bottom of the cabinet body (1) through a bearing, and the fan (107) is used for guiding air flow.
7. The overload protection power control cabinet according to claim 3, characterized in that: The bottom of the second support plate (201) is fixedly connected to the inner wall of the first support plate (104). The positioning hole (204) penetrates through the bottom of the fourth support plate (208) and is internally communicated with the assembly groove (203), and the positioning hole (204) is used for guiding the positioning block (309).
8. An overload protection power control cabinet according to claim 4, characterized in that: The bottom of the third support plate (206) protrudes from the bottom of the fourth support plate (208), and the fourth support plate (208) is used for limiting the third support plate (206).
Citation Information
Patent Citations
Control cabinet with overload protection structure
CN217789139U