Composite heat dissipation type electric control cabinet
By designing a composite heat dissipation electrical control cabinet, combining heat dissipation blades, chilled water pipe assembly, and rainwater recycling, the problem of poor heat dissipation of the electrical control cabinet is solved, achieving efficient heat dissipation and energy saving.
Patent Information
- Application Number
- CN202511512115.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-22
- Publication Date
- 2026-02-27
AI Technical Summary
Existing electrical control cabinets have poor heat dissipation performance, especially with the increase in component density, and cannot effectively cope with the problem of excessively high temperature caused by the heat accumulation of power devices.
A composite heat dissipation type electrical control cabinet is adopted, which combines a first heat dissipation mechanism and a second heat dissipation mechanism. The first heat dissipation mechanism achieves active heat dissipation through heat dissipation blades and rotating components, while the second heat dissipation mechanism achieves passive heat dissipation through chilled water pipe groups and fans, and utilizes rainwater cooling capacity for recycling. The heat dissipation process is optimized by combining a sensor control system.
This achieves multiple improvements in heat dissipation, increases heat dissipation efficiency, saves energy while utilizing natural resources, and ensures temperature stability within the electrical control cabinet.
Smart Images
Figure CN121584411A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of electrical control cabinets, and in particular to a composite heat dissipation type electrical control cabinet. Background Technology
[0002] An electrical control cabinet is a closed or semi-closed metal cabinet that protects electrical equipment and houses various functions such as detection devices, switch control devices, and auxiliary equipment. Electrical control cabinets typically contain a large number of electrical devices, including main circuit boards, relay boards, instrument panels, and power supply lines. These electrical devices must comply with basic electrical equipment specifications, meet the requirements for normal operation of the power system, and be easy to use and maintain, while also possessing a certain degree of electrical safety and stability. With the current trend of increasingly miniaturized and integrated components, the density of components within electrical control cabinets is also gradually increasing.
[0003] The heat generated by power devices in a confined space is not negligible. When the heat emitted by the components accumulates in the electrical control cabinet, it will cause the temperature inside the cabinet to become too high.
[0004] The existing electrical control cabinet only uses fans for heat dissipation, and the heat dissipation effect needs to be improved. Summary of the Invention
[0005] To address the aforementioned technical problems, this application provides a composite heat dissipation type electrical control cabinet.
[0006] The composite heat dissipation type electrical control cabinet provided in this application adopts the following technical solution: A composite heat dissipation type electrical control cabinet includes a cabinet body, a wire rack for installing electronic components is provided inside the cabinet body, a double door is rotatably provided on the front of the cabinet body, a heat dissipation notch is provided on the top wall of the cabinet body, a protective plate is provided above the heat dissipation notch, the protective plate is raised and lowered by an electric push rod, and a first heat dissipation mechanism is provided below the protective plate. The back of the cabinet is connected to a back panel by screws. The back panel has several first heat dissipation holes, and the side wall of the cabinet has several second heat dissipation holes. A second heat dissipation mechanism is provided between the cable tray and the back panel of the cabinet.
[0007] By adopting the above technical solution, the cabinet has multiple heat dissipation effects through the combination of the first heat dissipation mechanism and the second heat dissipation mechanism, which not only improves heat dissipation efficiency but also improves heat dissipation effect.
[0008] Preferably, the first heat dissipation mechanism includes heat dissipation blades and a rotating assembly, wherein the heat dissipation blades are rotatably connected to the protective plate via the rotating assembly.
[0009] Preferably, a fixed rod is fixedly installed on the bottom surface of the protective plate, a rotating ring is rotatably installed on the fixed rod, a limiting ring is fixedly and coaxially connected to the inner wall of the rotating ring, and a limiting groove is opened on the outer wall of the fixed rod for the limiting ring to rotate. The limiting ring rotates in the limiting groove, and the heat dissipation blade is fixedly connected to the rotating ring. The rotating assembly includes a motor, a first bevel gear, a second bevel gear, a first synchronous gear, a second synchronous gear, and a synchronous toothed belt. The motor is fixedly connected to the bottom surface of the top wall of the cabinet via a fixing plate. The first bevel gear is coaxially connected to the output shaft of the motor, and the second bevel gear is coaxially connected to the rotating rod. The rotating rod is rotatably connected to the cabinet via a first fixed bracket. The first synchronous gear is coaxially connected to the rotating rod, and the second synchronous gear is coaxially connected to the synchronous rod. The synchronous rod is rotatably connected to the cabinet via a second fixed bracket. The synchronous toothed belt is simultaneously fitted onto the first synchronous gear and the second synchronous gear, and the synchronous toothed belt meshes with both the first synchronous gear and the second synchronous gear.
[0010] Preferably, the synchronizing rod and the fixed rod are coaxially arranged, a magnetic block is fixedly connected to the top of the synchronizing rod, the bottom of the rotating ring extends beyond the fixed rod, an iron block is fixedly connected to the bottom of the rotating ring, there is a gap between the iron block and the fixed rod, and the magnetic block and the iron block are magnetically attracted to each other.
[0011] By adopting the above technical solution, the motor drives the first bevel gear to rotate, which in turn drives the second bevel gear to rotate, which in turn drives the first synchronous gear to rotate, which in turn drives the second synchronous gear to rotate, which in turn drives the synchronous rod to rotate. When the magnetic block and the iron block are magnetically attracted, the synchronous rod drives the rotating ring to rotate, which in turn drives the heat dissipation blades to rotate, thus exhausting the hot air outward for heat dissipation.
[0012] Preferably, the second heat dissipation mechanism includes a cold water pipe assembly and a fan. The cold water pipe assembly is located between the fan and the cable tray, and the fan blows the cold air from the cold water pipe assembly toward the cable tray.
[0013] Preferably, the fans are arranged in multiple rows along the height direction of the wire rack, with multiple fans in each row, and the position of each row of fans corresponds one-to-one with the position of each row of wire racks.
[0014] By adopting the above technical solution, the cooling energy of the chilled water pipe assembly is blown towards the cable tray by a fan, thereby improving the heat dissipation efficiency and effect.
[0015] Preferably, the cold water pipe assembly includes two serpentine cooling pipes, which are staggered. The top of each cooling pipe is a vertical section. A water collection frame is provided on the bottom surface of the protective plate. A water trough communicating with the water collection frame is provided on the protective plate. A drain hole that connects to the cooling pipe is provided on the bottom wall of the water collection frame. A connecting sleeve is fixedly connected to the drain hole on the bottom surface of the water collection frame. The connecting sleeve is tightly fitted by the vertical section of the cooling pipe and is slidably connected to the cooling pipe. When the protective plate is raised to the top, the connecting sleeve and the cooling pipe remain connected. The inner bottom wall of the water collection frame is recessed along its perimeter towards the drain hole.
[0016] By adopting the above technical solution, when it rains, rainwater enters the water collection frame and flows through the cooling pipes. The serpentine cooling pipes expand the flow path of the rainwater, increase the layout area of the cooling pipes, and improve the diffusion effect of cold energy, thereby realizing the function of improving heat dissipation by utilizing the cold energy of rainwater.
[0017] Preferably, the cooling pipe has several vertical sections, each of which is equipped with a filter assembly. The filter assembly includes a filter frame, a first fixed arc plate, and a second fixed arc plate. A mounting groove for inserting the filter frame is provided on each vertical section. The angle of the mounting groove is 180°, and the width of the mounting groove matches the length of the filter frame. The central angles of the first and second fixed arc plates are both 180°. The first fixed arc plate is fixedly connected to the peripheral wall of the filter frame, and the second fixed arc plate is fixedly connected to the peripheral wall of the vertical section. First wing plates are fixedly connected to both ends of the first fixed arc plate, and second wing plates are fixedly connected to both ends of the second fixed arc plate. The first and second wing plates are attached together and locked by bolts.
[0018] By adopting the above technical solution, since rainwater contains impurities, a filter frame is installed to filter out the impurities. Regularly disassembling and cleaning the filter frame can improve the service life of the cooling pipe.
[0019] Preferably, the bottoms of the two cooling pipes are connected, and a collecting pipe is connected at the connection point. The collecting pipe is vertically arranged, and its bottom end is connected to the connection point of the two cooling pipes. The top end of the collecting pipe extends to the top wall near the cabinet. A heat exchanger is connected to the top end of the collecting pipe. The hot water end of the heat exchanger is connected to the collecting pipe. The cold water end of the heat exchanger is connected to a water pump through a connecting pipe. The inlet end of the water pump is connected to the cold water end of the heat exchanger. The outlet end of the water pump is connected to two circulation pipes through a three-way pipe. The two circulation pipes extend in opposite directions, and the ends of the two circulation pipes away from the water pump are connected to the cooling pipes respectively. A one-way solenoid valve is provided on the circulation pipe. When the one-way solenoid valve is open, rainwater can flow from the circulation pipe toward the cooling pipe. When the one-way solenoid valve is closed, rainwater can only flow inside the cooling pipe.
[0020] By adopting the above technical solution, the water pump is set to start periodically, and the one-way solenoid valve is opened at the same time, so that rainwater can flow from the circulation pipe to the cooling pipe, realizing the circulation of rainwater. The heat exchanger can exchange the high temperature rainwater into low temperature rainwater, which not only improves the heat dissipation efficiency and heat dissipation effect, but also saves resources and realizes the recycling of rainwater.
[0021] Preferably, a wind speed sensor and a humidity sensor are provided on the outermost side of the protective plate, and the wind speed sensor and humidity sensor are electrically connected to the electric actuator and the motor. When the wind speed sensor detects that the wind speed is less than the set value and the humidity sensor detects that the humidity is greater than the set value, the electric push rod drives the protective plate to descend until the magnetic block and the iron block are attracted together. At this time, the motor starts and drives the rotating ring to rotate. When the wind speed sensor detects that the wind speed is greater than the set value and the humidity sensor detects that the humidity is less than the set value, the electric push rod drives the protective plate to rise until the iron block is out of the magnetic attraction range of the magnetic block, so that the magnetic block and the iron block are separated, and the motor is turned off at this time. The wind speed sensor is set to the wind speed of natural wind that can drive the heat dissipation blades to rotate; the humidity sensor is set to the air humidity that does not affect the humidity of the components inside the cabinet. Each layer of the wire rack is equipped with a first temperature sensor, which is electrically connected to the motor and the fan. When the first temperature sensor detects that the ambient temperature is higher than a set value, the motor drives the heat dissipation blades to rotate, and the fan starts. The set value of the first temperature sensor is the highest value of the normal operating temperature of the electronic components. A second temperature sensor is installed on the cooling pipe. The second temperature sensor is electrically connected to the heat exchanger. When the second temperature sensor detects that the temperature of the cooling pipe is greater than a set value, the heat exchanger is turned on. The set value of the second temperature sensor is 4°C.
[0022] By adopting the above technical solution, when the first temperature sensor detects that the ambient temperature is lower than the set value, natural heat dissipation is achieved through the first heat dissipation hole and the second heat dissipation hole. When the first temperature sensor detects that the ambient temperature is higher than the set value, the fan starts to actively dissipate heat. When the first temperature sensor detects that the ambient temperature is greater than the set value, the wind speed sensor detects that the wind speed is less than the set value, and the humidity sensor detects that the humidity is greater than the set value, the electric push rod drives the protective plate to descend until the magnetic block and the iron block are attracted. At this time, the motor starts and drives the rotating ring to rotate. Active heat dissipation is achieved by driving the heat dissipation blades to rotate through the motor. When the first temperature sensor detects that the ambient temperature is greater than the set value, the wind speed sensor detects that the wind speed is greater than the set value, and the humidity sensor detects that the humidity is less than the set value, the electric actuator drives the protective plate to rise until the iron block is out of the magnetic attraction range of the magnetic block, so that the magnetic block and the iron block are separated. At this time, the motor is turned off, and the heat dissipation blades are rotated by natural wind to achieve active heat dissipation and save energy.
[0023] In summary, this application includes at least one of the following beneficial technical effects: 1. By combining the first and second heat dissipation mechanisms, heat dissipation efficiency and effect are improved; 2. Utilizing natural resources to power heat dissipation, energy is saved while achieving multiple heat dissipation effects. Attached Figure Description
[0024] Figure 1 This is a schematic diagram of the overall structure of a composite heat dissipation type electrical control cabinet in an embodiment of this application.
[0025] Figure 2 This is a structural schematic diagram of the back of the composite heat dissipation type electrical control cabinet in the embodiments of this application.
[0026] Figure 3 This is a schematic diagram of the internal structure of the composite heat dissipation type electrical control cabinet after the back panel is hidden in this embodiment of the application.
[0027] Figure 4 This is a schematic diagram illustrating the positional relationship between the dustproof mesh, electric actuator, and water collection frame in the embodiments of this application.
[0028] Figure 5 This is a schematic diagram illustrating the structure of the first heat dissipation mechanism in an embodiment of this application.
[0029] Figure 6 This is a cross-sectional structural diagram of the limiting ring and the limiting groove used in the embodiments of this application.
[0030] Figure 7 This is a schematic diagram illustrating the structure of the second heat dissipation mechanism in an embodiment of this application.
[0031] Figure 8 This is an exploded structural diagram of the filter component used in the embodiments of this application.
[0032] Explanation of reference numerals in the attached drawings: 1. Cabinet; 11. Double door; 12. Ventilation notch; 121. Dustproof mesh panel; 13. Back panel; 131. First ventilation hole; 14. Second ventilation hole; 2. Cable tray; 21. First temperature sensor; 3. Protective plate; 31. Electric actuator; 32. Water collection frame; 321. Water tank; 322. Drain hole; 33. Connecting sleeve; 34. Wind speed sensor; 35. Humidity sensor; 4. First heat dissipation mechanism; 41. Heat dissipation blades; 411. Fixing rod; 4111. Limiting groove; 412. Rotating ring; 4121. Limiting ring; 4122. Iron block; 413. Rotating rod; 414. Synchronizing rod; 4141 42. Magnetic block; 421. Rotating assembly; 422. Motor; 423. First bevel gear; 424. Second bevel gear; 425. First synchronous gear; 426. Second synchronous gear; 5. Synchronous toothed belt; 5. Second heat dissipation mechanism; 51. Cold water pipe assembly; 511. Cooling pipe; 5111. Mounting slot; 5112. Second temperature sensor; 512. Manifold; 513. Heat exchanger; 514. Water pump; 515. One-way solenoid valve; 516. Circulation pipe; 52. Fan; 6. Filter assembly; 61. Filter frame; 62. First fixed arc plate; 621. First wing plate; 63. Second fixed arc plate; 631. Second wing plate. Detailed Implementation
[0033] The following is in conjunction with the appendix Figure 1-8 This application will be described in further detail.
[0034] This application discloses a composite heat dissipation type electrical control cabinet.
[0035] Reference Figure 1-8 The composite heat dissipation type electrical control cabinet includes a cabinet body 1. Inside the cabinet body 1 is a cable tray 2 for mounting electronic components. The front of the cabinet body 1 has a double-door 11 that rotates. A heat dissipation notch 12 is provided on the top wall of the cabinet body 1. A protective plate 3 is positioned above the heat dissipation notch 12 and is raised and lowered by an electric push rod 31. A first heat dissipation mechanism 4 is located below the protective plate 3. A back panel 13 is connected to the back of the cabinet body 1 by screws. The back panel 13 has several first heat dissipation holes 131. Several second heat dissipation holes 14 are provided on the side walls of the cabinet body 1. A second heat dissipation mechanism 5 is provided between the cable tray 2 and the back panel 13. Through the cooperation of the first heat dissipation mechanism 4 and the second heat dissipation mechanism 5, the cabinet body 1 has multiple heat dissipation effects, improving both heat dissipation efficiency and overall heat dissipation effect.
[0036] The bottom surface of the protective plate 3 is also provided with a dustproof mesh plate 121. The dustproof mesh plate 121 is set around the heat dissipation gap 12. When the protective plate 3 is raised to the highest position, the bottom part of the dustproof mesh plate 121 is still located below the heat dissipation gap 12.
[0037] The first heat dissipation mechanism 4 includes a heat dissipation blade 41 and a rotating assembly 42. The heat dissipation blade 41 is rotatably connected to the protective plate 3 through the rotating assembly 42.
[0038] A fixed rod 411 is fixedly installed on the bottom surface of the protective plate 3. A rotating ring 412 is rotatably installed on the fixed rod 411. A limiting ring 4121 is fixedly and coaxially connected to the inner wall of the rotating ring 412. A limiting groove 4111 is opened on the outer wall of the fixed rod 411 for the limiting ring 4121 to rotate. The limiting ring 4121 rotates in the limiting groove 4111. The heat dissipation blade 41 is fixedly connected to the rotating ring 412.
[0039] The rotating assembly 42 includes a motor 421, a first bevel gear 422, a second bevel gear 423, a first synchronous gear 424, a second synchronous gear 425, and a synchronous toothed belt 426. The motor 421 is fixedly connected to the bottom surface of the top wall of the cabinet 1 through a fixing plate. The first bevel gear 422 is coaxially connected to the output shaft of the motor 421. The second bevel gear 423 is coaxially connected to the rotating rod 413. The rotating rod 413 is rotatably connected to the cabinet 1 through a first fixed bracket. The first synchronous gear 424 is coaxially connected to the rotating rod 413. The second synchronous gear 425 is coaxially connected to the synchronous rod 414. The synchronous rod 414 is rotatably connected to the cabinet 1 through a second fixed bracket. The synchronous toothed belt 426 is simultaneously sleeved on the first synchronous gear 424 and the second synchronous gear 425, and the synchronous toothed belt 426 meshes with both the first synchronous gear 424 and the second synchronous gear 425.
[0040] Synchronizing rod 414 and fixed rod 411 are coaxially arranged. A magnetic block 4141 is fixedly connected to the top of the synchronizing rod 414. The bottom of the rotating ring 412 extends beyond the fixed rod 411. An iron block 4122 is fixedly connected to the bottom of the rotating ring 412. There is a gap between the iron block 4122 and the fixed rod 411. The magnetic block 4141 and the iron block 4122 are magnetically attracted to each other.
[0041] Motor 421 drives the first bevel gear 422 to rotate, which in turn drives the second bevel gear 423 to rotate, which in turn drives the first synchronous gear 424 to rotate, which in turn drives the second synchronous gear 425 to rotate, which in turn drives the synchronous rod 414 to rotate. When the magnetic block 4141 and the iron block 4122 are magnetically attracted, the synchronous rod 414 drives the rotating ring 412 to rotate, which in turn drives the heat dissipation blades 41 to rotate, thus expelling hot air outwards for heat dissipation.
[0042] The second heat dissipation mechanism 5 includes a cold water pipe assembly 51 and a fan 52. The cold water pipe assembly 51 is located between the fan 52 and the cable tray 2. The fan 52 blows the cool air from the cold water pipe assembly 51 onto the cable tray 2. Multiple rows of fans 52 are arranged along the height of the cable tray 2, with multiple fans in each row. The position of each row of fans 52 corresponds one-to-one with the position of each row of cables in the cable tray 2. By blowing the cool air from the cold water pipe assembly 51 onto the cable tray 2 through the fans 52, the heat dissipation efficiency and effect are improved.
[0043] The fan 52 is fixed to the back plate 13. The cooling water pipe assembly 51 includes two serpentine cooling pipes 511, which are staggered. The top of each cooling pipe 511 is vertical. A water collection frame 32 is provided on the bottom surface of the protective plate 3. A water trough 321 communicating with the water collection frame 32 is provided on the protective plate 3. A drain hole 322 that connects to the cooling pipe 511 is provided on the bottom wall of the water collection frame 32. A connecting sleeve 33 is fixedly connected to the drain hole 322 on the bottom surface of the water collection frame 32. The connecting sleeve 33 is tightly fitted by the vertical section of the cooling pipe 511 and is slidably connected to the cooling pipe 511. When the protective plate 3 is raised to the top, the connecting sleeve 33 remains connected to the cooling pipe 511. The inner bottom wall of the water collection frame 32 is recessed along the perimeter towards the drain hole 322 to facilitate rainwater flow into the cooling pipe 511.
[0044] When it rains, rainwater enters the water collection frame 32 and flows through the cooling pipe 511. The serpentine cooling pipe 511 expands the flow path of the rainwater, increases the layout area of the cooling pipe 511, and improves the diffusion effect of cold energy, thereby realizing the function of improving heat dissipation by utilizing the cold energy of rainwater.
[0045] The cooling pipe 511 has several vertical sections, each of which is equipped with a filter assembly 6. The filter assembly 6 includes a filter frame 61, a first fixed arc plate 62, and a second fixed arc plate 63. The vertical section has an installation groove 5111 for inserting the filter frame 61. The angle of the installation groove 5111 is 180°, and the width of the installation groove 5111 matches the length of the filter frame 61. The central angles of the first fixed arc plate 62 and the second fixed arc plate 63 are both 180°. The first fixed arc plate 62 is fixedly connected to the peripheral wall of the filter frame 61, and the second fixed arc plate 63 is fixedly connected to the peripheral wall of the vertical section. The two ends of the first fixed arc plate 62 are fixedly connected to the first wing plate 621, and the two ends of the second fixed arc plate 63 are fixedly connected to the second wing plate 631. The first wing plate 621 and the second wing plate 631 are attached together and locked by bolts.
[0046] Two cooling pipes 511 are connected at their bottoms, and a manifold 512 is connected at the connection point. The manifold 512 is vertically installed, and its bottom end is connected to the connection point of the two cooling pipes 511. The top end of the manifold 512 extends to the top wall near the cabinet 1. A heat exchanger 513 is connected to the top end of the manifold 512. The hot water end of the heat exchanger 513 is connected to the manifold 512, and the cold water end of the heat exchanger 513 is connected to a water pump 514 via a connecting pipe. The inlet end of the water pump 514 is connected to the heat exchanger 511. The cold water end of the pump 514 is connected to two circulation pipes 516 via a three-way pipe. The two circulation pipes 516 extend in opposite directions. The ends of the two circulation pipes 516 away from the pump 514 are connected to and communicate with the cooling pipe 511. A one-way solenoid valve 515 is installed on the circulation pipe 516. When the one-way solenoid valve 515 is open, rainwater can flow from the circulation pipe 516 toward the cooling pipe 511. When the one-way solenoid valve 515 is closed, rainwater can only flow in the cooling pipe 511.
[0047] Since rainwater contains impurities, a filter frame 61 is installed to filter out these impurities. Regularly disassembling and cleaning the filter frame 61 can extend the service life of the cooling pipe 511 and reduce damage to the water pump 514 and heat exchanger 513.
[0048] The water pump 514 is set to turn on periodically, and at the same time the one-way solenoid valve 515 is opened, so that rainwater can flow from the circulation pipe 516 to the cooling pipe 511, realizing the circulation of rainwater. The heat exchanger 513 can exchange the high temperature rainwater into low temperature rainwater, which not only improves the heat dissipation efficiency and heat dissipation effect, but also saves resources and realizes the recycling of rainwater.
[0049] The outermost part of the protective plate 3 is equipped with a wind speed sensor 34 and a humidity sensor 35. The wind speed sensor 34 and the humidity sensor 35 are electrically connected to the electric actuator 31 and the motor 421.
[0050] When the wind speed sensor 34 detects that the wind speed is less than the set value and the humidity sensor 35 detects that the humidity is greater than the set value, the electric actuator 31 drives the protective plate 3 to descend until the magnetic block 4141 and the iron block 4122 are attracted together. At this time, the motor 421 starts and drives the rotating ring 412 to rotate. When the wind speed sensor 34 detects that the wind speed is greater than the set value and the humidity sensor 35 detects that the humidity is less than the set value, the electric actuator 31 drives the protective plate 3 to rise until the iron block 4122 is out of the magnetic attraction range of the magnetic block 4141, so that the magnetic block 4141 and the iron block 4122 are separated. At this time, the motor 421 is turned off.
[0051] The wind speed sensor 34 is set to the wind speed of natural wind that can drive the heat dissipation blades 41 to rotate; the humidity sensor 35 is set to the air humidity that does not affect the humidity of the components inside the cabinet 1.
[0052] Each layer of the wire rack 2 is equipped with a first temperature sensor 21. The first temperature sensor 21 is electrically connected to the motor 421 and the fan 52. When the first temperature sensor 21 detects that the ambient temperature is higher than the set value, the motor 421 drives the heat dissipation blades 41 to rotate and the fan 52 starts. The set value of the first temperature sensor 21 is the highest value of the normal operating temperature of the electronic components.
[0053] A second temperature sensor 5112 is installed on the cooling pipe 511. The second temperature sensor 5112 is electrically connected to the heat exchanger 513. When the second temperature sensor 5112 detects that the temperature of the cooling pipe 511 is greater than the set value, the heat exchanger 513 is turned on. The set value of the second temperature sensor 5112 is 4℃.
[0054] When the first temperature sensor 21 detects that the ambient temperature is lower than the set value, natural heat dissipation is achieved through the first heat dissipation hole 131 and the second heat dissipation hole 14.
[0055] When the first temperature sensor 21 detects that the ambient temperature is greater than the set value, the fan 52 starts to actively dissipate heat.
[0056] When the first temperature sensor 21 detects that the ambient temperature is greater than the set value, the wind speed sensor 34 detects that the wind speed is less than the set value, and the humidity sensor 35 detects that the humidity is greater than the set value, the electric push rod 31 drives the protective plate 3 to descend until the magnetic block 4141 and the iron block 4122 are attracted together. At this time, the motor 421 starts and drives the rotating ring 412 to rotate. Active heat dissipation is achieved by driving the heat dissipation blades 41 to rotate through the motor 421.
[0057] When the first temperature sensor 21 detects that the ambient temperature is greater than the set value, the wind speed sensor 34 detects that the wind speed is greater than the set value, and the humidity sensor 35 detects that the humidity is less than the set value, the electric push rod 31 drives the protective plate 3 to rise until the iron block 4122 is out of the magnetic attraction range of the magnetic block 4141, so that the magnetic block 4141 is separated from the iron block 4122. At this time, the motor 421 is turned off, and the heat dissipation blades 41 are rotated by natural wind to achieve active heat dissipation and save energy.
[0058] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A composite heat dissipation type electrical control cabinet, characterized in that: The device includes a cabinet, which contains a wire rack for installing electronic components. The front of the cabinet has a double door that can be rotated. The top wall of the cabinet has a heat dissipation opening. A protective plate is installed above the heat dissipation opening. The protective plate is raised and lowered by an electric push rod. A first heat dissipation mechanism is installed below the protective plate. The back of the cabinet is connected to a back panel by screws. The back panel has several first heat dissipation holes, and the side wall of the cabinet has several second heat dissipation holes. A second heat dissipation mechanism is provided between the cable tray and the back panel of the cabinet.
2. The composite heat dissipation type electrical control cabinet according to claim 1, characterized in that: The first heat dissipation mechanism includes heat dissipation blades and a rotating assembly, wherein the heat dissipation blades are rotatably connected to the protective plate through the rotating assembly.
3. The composite heat dissipation type electrical control cabinet according to claim 2, characterized in that: A fixed rod is fixedly installed on the bottom surface of the protective plate. A rotating ring is rotatably installed on the fixed rod. A limiting ring is fixedly and coaxially connected to the inner wall of the rotating ring. A limiting groove is opened on the outer wall of the fixed rod for the limiting ring to rotate. The limiting ring rotates in the limiting groove. The heat dissipation blade is fixedly connected to the rotating ring. The rotating assembly includes a motor, a first bevel gear, a second bevel gear, a first synchronous gear, a second synchronous gear, and a synchronous toothed belt. The motor is fixedly connected to the bottom surface of the top wall of the cabinet via a fixing plate. The first bevel gear is coaxially connected to the output shaft of the motor, and the second bevel gear is coaxially connected to the rotating rod. The rotating rod is rotatably connected to the cabinet via a first fixed bracket. The first synchronous gear is coaxially connected to the rotating rod, and the second synchronous gear is coaxially connected to the synchronous rod. The synchronous rod is rotatably connected to the cabinet via a second fixed bracket. The synchronous toothed belt is simultaneously fitted onto the first synchronous gear and the second synchronous gear, and the synchronous toothed belt meshes with both the first synchronous gear and the second synchronous gear.
4. The composite heat dissipation type electrical control cabinet according to claim 3, characterized in that: The synchronizing rod and the fixed rod are coaxially arranged. A magnetic block is fixedly connected to the top of the synchronizing rod. The bottom of the rotating ring extends beyond the fixed rod. An iron block is fixedly connected to the bottom of the rotating ring. There is a gap between the iron block and the fixed rod. The magnetic block and the iron block are magnetically attracted to each other.
5. The composite heat dissipation type electrical control cabinet according to claim 1, characterized in that: The second heat dissipation mechanism includes a cooling water pipe assembly and a fan. The cooling water pipe assembly is located between the fan and the cable tray, and the fan blows the cooling energy from the cooling water pipe assembly toward the cable tray.
6. The composite heat dissipation type electrical control cabinet according to claim 5, characterized in that: The fans are arranged in multiple rows along the height of the wire rack, with multiple fans in each row. The position of each row of fans corresponds one-to-one with the position of each row of wires on the wire rack.
7. The composite heat dissipation type electrical control cabinet according to claim 5, characterized in that: The cold water pipe assembly includes two serpentine cooling pipes, which are staggered. The top of each cooling pipe is vertical. A water collection frame is provided on the bottom surface of the protective plate. A water trough communicating with the water collection frame is provided on the protective plate. A drain hole that connects to the cooling pipe is provided on the bottom wall of the water collection frame. A connecting sleeve is fixedly connected to the drain hole on the bottom surface of the water collection frame. The connecting sleeve is tightly fitted by the vertical section of the cooling pipe and is slidably connected to the cooling pipe. When the protective plate is raised to the top, the connecting sleeve and the cooling pipe remain connected. The inner bottom wall of the water collection frame is recessed along its perimeter towards the drain hole.
8. The composite heat dissipation type electrical control cabinet according to claim 7, characterized in that: The cooling pipe has several vertical sections, each of which is equipped with a filter assembly. The filter assembly includes a filter frame, a first fixed arc plate, and a second fixed arc plate. A mounting groove for inserting the filter frame is provided on each vertical section. The angle of the mounting groove is 180°, and the width of the mounting groove matches the length of the filter frame. The central angles of both the first and second fixed arc plates are 180°. The first fixed arc plate is fixedly connected to the peripheral wall of the filter frame, and the second fixed arc plate is fixedly connected to the peripheral wall of the vertical section. First wing plates are fixedly connected to both ends of the first fixed arc plate, and second wing plates are fixedly connected to both ends of the second fixed arc plate. The first and second wing plates are attached together and locked by bolts.
9. The composite heat dissipation type electrical control cabinet according to claim 7, characterized in that: The bottoms of the two cooling pipes are connected, and a manifold is connected at the connection point. The manifold is vertically arranged, and its bottom end is connected to the connection point of the two cooling pipes. The top end of the manifold extends to the top wall near the cabinet. A heat exchanger is connected to the top end of the manifold. The hot water end of the heat exchanger is connected to the manifold. The cold water end of the heat exchanger is connected to a water pump through a connecting pipe. The inlet end of the water pump is connected to the cold water end of the heat exchanger. The outlet end of the water pump is connected to two circulation pipes through a T-junction. The two circulation pipes extend in opposite directions, and their ends away from the water pump are connected to the cooling pipes. A one-way solenoid valve is installed on the circulation pipe. When the one-way solenoid valve is open, rainwater can flow from the circulation pipe toward the cooling pipe. When the one-way solenoid valve is closed, rainwater can only flow inside the cooling pipe.
10. The composite heat dissipation type electrical control cabinet according to claim 9, characterized in that: The outermost side of the protective plate is equipped with a wind speed sensor and a humidity sensor, which are electrically connected to the electric actuator and the motor. When the wind speed sensor detects that the wind speed is less than the set value and the humidity sensor detects that the humidity is greater than the set value, the electric push rod drives the protective plate to descend until the magnetic block and the iron block are attracted together. At this time, the motor starts and drives the rotating ring to rotate. When the wind speed sensor detects that the wind speed is greater than the set value and the humidity sensor detects that the humidity is less than the set value, the electric push rod drives the protective plate to rise until the iron block is out of the magnetic attraction range of the magnetic block, so that the magnetic block and the iron block are separated, and the motor is turned off at this time. The wind speed sensor is set to the wind speed of natural wind that can drive the heat dissipation blades to rotate; the humidity sensor is set to the air humidity that does not affect the humidity of the components inside the cabinet. Each layer of the wire rack is equipped with a first temperature sensor, which is electrically connected to both the motor and the fan. When the first temperature sensor detects that the ambient temperature is higher than a set value, the fan starts. When the first temperature sensor detects that the ambient temperature is higher than the set value, the wind speed sensor detects that the wind speed is lower than the set value, and the humidity sensor detects that the humidity is higher than the set value, the motor drives the cooling blades to rotate. The set value of the first temperature sensor is the highest value of the normal operating temperature of the electronic components. A second temperature sensor is installed on the cooling pipe. The second temperature sensor is electrically connected to the heat exchanger. When the second temperature sensor detects that the temperature of the cooling pipe is greater than a set value, the heat exchanger is turned on. The set value of the second temperature sensor is 4°C.