Outdoor switch cabinet capable of automatically dissipating heat
Through the independent heat dissipation structure combined with the principle of hot air rise and a variety of heat dissipation methods, the heat dissipation problem of outdoor switch cabinets in high-temperature environments is solved, efficient and energy-saving automated heat dissipation is achieved, and components are safe and convenient to maintain.
Patent Information
- Application Number
- CN202510503467.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-22
- Publication Date
- 2025-07-25
AI Technical Summary
The existing outdoor switch cabinets have poor heat dissipation effect in high-temperature environments, resulting in reduced component life and increased maintenance costs, especially in thermal environments.
An outdoor switch cabinet with independent heat dissipation is designed, using a combined structure such as a heat dissipation ring groove, a fan, a temperature monitor and a power transmission device to achieve automated heat dissipation, combining the principle of hot air rise and a variety of heat dissipation methods to avoid dust and moisture entering.
Improve heat dissipation efficiency, reduce energy consumption, keep the inside of the cabinet clean, reduce maintenance costs, and ensure the safe operation of components.
Smart Images
Figure CN120377104A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of power transmission related equipment technology, and in particular to an outdoor switch cabinet capable of autonomous heat dissipation. Background Art
[0002] Switchgear is an electrical device that is mainly used for receiving, distributing and controlling electric energy in power systems. It consists of circuit breakers, disconnectors, load switches, operating mechanisms, transformers and various protective devices. Since large currents are usually transmitted inside the switchgear, it is often placed outdoors for safety reasons. In order to protect the components inside the switchgear and isolate them from the external environment, metal plates are now used to form a closed cabinet.
[0003] The amount of current transmitted during the operation of the switch cabinet is very huge, and its internal components are in full power or even over-power working state for a long time, so a lot of heat will be released, causing the air inside the switch cabinet to heat up sharply. For some components, working in a high temperature environment is very dangerous, and it will shorten the life of the components and increase maintenance costs. Especially in some hot environments, poor heat dissipation inside the switch cabinet will directly affect the working efficiency of the components in the cabinet, and even cause the risk of burning. Summary of the invention
[0004] In order to improve the mechanical heat dissipation system of the switch cabinet, thereby designing a switch cabinet with a simple structure and good heat dissipation effect, so that the components inside the cabinet can safely operate at full power or even over power, the present application provides an outdoor switch cabinet with autonomous heat dissipation.
[0005] The present application provides an outdoor switch cabinet capable of autonomous heat dissipation, which adopts the following technical solution: An outdoor switch cabinet capable of autonomous heat dissipation comprises a cabinet body and a top cover connected to the top of the cabinet body, the top cover is provided with a heat dissipation ring groove, the bottom of the cabinet body is provided with a plurality of air intake holes and a base is placed thereon, the base is provided with an air inlet passage connecting the air intake holes with the outside, the bottom of the top cover is rotatably connected to a top column along an axis, and a motor for driving the top column to rotate is installed, a fan for absorbing heat is also fixedly sleeved on the top column, the motor is electrically connected to a temperature monitor, a plurality of ventilation holes are provided in an array on the side wall of the cabinet body, a plurality of the ventilation holes are rotatably connected to hinge shafts at the positions, and a plurality of the hinge shafts are connected to a heat dissipation cover for opening and closing the ventilation holes, a plurality of the hinge shafts located on the same side wall of the cabinet body are meshed and transmission-connected with a guide rod with a rack on one side, a power transmission device for driving the guide rod to move by rotating the fan is connected to the top of the guide rod, and a spring for resetting the guide rod is connected between the bottom end of the guide rod and the bottom side of the cabinet body.
[0006] Optionally, the power transmission device includes a pressing ring slidably sleeved on the top column, a plurality of connecting rods circumferentially connected to the pressing ring, and a stud connected to the fan on the side close to the pressing ring. The plurality of connecting rods correspond to the plurality of guide rods one by one. The end of the connecting rod away from the pressing ring abuts against the top of the guide rod and is vertically movably clamped on the inner side wall of the cabinet. The stud is sleeved on the top column and its top is in internal thread connection with the pressing ring. A reset assembly for driving the pressing ring to reset is further arranged on the top column.
[0007] Optionally, the reset assembly includes a torsion spring fixedly sleeved on the side of the fan close to the pressing ring along the axis, a conductive ring integrally connected to the end of the torsion spring away from the fan, and a magnetic attraction ring with magnetism arranged on the side of the pressing ring close to the fan. An electrical component capable of energizing the conductive ring and having electromagnetic properties is installed on the fan. The electrical component is electrically connected to the motor, and when the motor is powered off, the electrical component energizes the magnetic attraction ring.
[0008] Optionally, the air intake passage is of an inclined structure, and there is a gap between the end of the air intake passage close to the bottom of the base and the ground.
[0009] Optionally, the heat dissipation ring groove includes an inclined groove communicating with the top side of the top cover and a vertical groove communicating with the bottom side of the top cover. A return groove for storing water is arranged on the side of the inclined groove close to the bottom of the top cover. The return groove is communicated with a water outlet passage leading to the outside of the top cover.
[0010] Optionally, a plurality of section grooves for preventing hot air from liquefying and flowing into the interior of the cabinet are arranged at equal intervals along the radial direction on the top side of the inclined groove.
[0011] In summary, the present application includes at least one of the following beneficial technical effects: Compared with the prior art, the present application has a better heat dissipation effect, and the driving structure is relatively simple. It does not consume too much energy during heat dissipation and has strong practicability. The cabinet in the present application is always in the external natural environment and does not enclose the cabinet, which is beneficial to further improving the overall heat dissipation efficiency of the switch cabinet while utilizing the heat dissipation ability of the metal cabinet itself. The present application conforms to the basic principle that hot air will automatically move upward, and has a higher heat dissipation efficiency compared with general switch cabinets with side heat dissipation. The present application adopts a structure combining multiple heat dissipation methods to dissipate heat from the switch cabinet body, thereby improving the heat dissipation ability of the cabinet while ensuring the original heat dissipation structure of the cabinet.
[0012] The switch cabinet of the present application can avoid dust from the outside entering the interior of the cabinet while dissipating heat, ensuring a clean and tidy interior environment of the cabinet and facilitating the subsequent maintenance of the cabinet. Description of the Drawings
[0013] Figure 1 It is a schematic diagram of the overall structure of an outdoor switch cabinet with self-cooling of the present application.
[0014] Figure 2 is Figure 1 the cross-sectional view at A-A in
[0015] Figure 3 is Figure 1 the enlarged view at A in
[0016] Figure 4 It is an exploded view of the top cover connection structure of an outdoor switch cabinet with self-cooling of the present application.
[0017] Description of the reference numerals: 1, cabinet; 11, air intake hole; 12, ventilation hole; 13, hinge shaft; 14, heat dissipation cover; 15, guide rod; 2, top cover; 21, heat dissipation ring groove; 211, inclined groove; 2111, return groove; 2112, sectional groove; 212, vertical groove; 22, top column; 221, stop block; 3, base; 31, air intake channel; 4, fan; 5, motor; 6, temperature monitor; 7, power transmission device; 71, pressing ring; 72, connecting rod; 73, stud; 8, spring; 9, reset assembly; 91, torsion spring; 92, conductive ring; 93, magnetic attraction ring; 94, electrical component. Detailed Description of the Embodiment
[0018] The following is a further detailed description of the present application in conjunction with the attached Figures 1-4 drawings.
[0019] The embodiment of the present application discloses an outdoor switch cabinet with self-cooling.
[0020] Referring to Figure 1 , an outdoor switch cabinet with self-cooling includes a cabinet 1 with several components installed at intervals inside and a top cover 2 detachably connected to the top of the cabinet 1. A heat dissipation ring groove 21 communicating with the external environment is provided on the top cover 2 for discharging the hot air generated inside the cabinet 1 and gathered at the top inside the cabinet 1 to maintain the temperature inside the cabinet 1 within a safe range. A base 3 for supporting the cabinet 1 is placed at the bottom of the cabinet 1, and several air intake holes 11 are provided on the bottom side of the cabinet 1 for air intake at the bottom of the cabinet 1 to form a channel for the air circulation required for heat exchange inside the cabinet 1. Moreover, several air intake channels 31 are provided on the base 3, so that the air intake holes 11 at the bottom of the cabinet 1 can communicate with the external environment through the air intake channels 31.
[0021] Referring to Figure 2, preferably, the air intake passage 31 is of an inclined structure, and there is a gap between the end of the air intake passage 31 close to the bottom of the base 3 and the ground. The purpose of this structural design is to prevent external dust from entering the interior of the cabinet 1 along the air intake passage 31 during the air circulation process. The dust will accumulate on the lower side wall of the inclined passage under the action of gravity during the air intake process and then slide out of the air intake passage 31.
[0022] Referring to Figure 2 and Figure 4 , the heat dissipation ring groove 21 includes an inclined groove 211 communicating with the top side of the top cover 2 and a vertical groove 212 communicating with the bottom side of the top cover 2, and the inclined groove 211 and the bottom vertical groove 212 communicate with each other. A return groove 2111 is integrally connected to the lower side of one end of the inclined groove 211 close to the vertical groove 212, which is used to collect rainwater or dew, so as to reduce the temperature of the switch cabinet by means of heat conduction of the cabinet 1 and liquefaction of hot air.
[0023] At the same time, when the hot air inside the cabinet 1 is transported in the inclined groove 211 and contacts the low-temperature environment at the outlet position of the inclined groove 211, a part of it will liquefy into water droplets. At this time, the water droplets will fall into the return groove 2111 under the action of gravity, preventing water from falling into the cabinet 1. The return groove 2111 is communicated with a water outlet passage opened on the top cover 2, which is used to discharge the excess water in the return groove 2111.
[0024] Furthermore, a plurality of sectional grooves 2112 are arranged at equal intervals along the radial direction on the top side of the inclined groove 211, which are used to prevent the water droplets formed by the liquefaction of hot air from adhering to the top side of the inclined groove 211 and sliding into the vertical groove 212.
[0025] It is worth mentioning that due to the inclined groove 211 structure of the heat dissipation ring groove 21, the dust entering the interior of the cabinet 1 from above will also enter the return groove 2111 under the action of gravity, achieving the purpose of blocking dust.
[0026] Referring to Figure 2 and Figure 4 , a top column 22 is rotatably connected to the bottom of the top cover 2 inside the cabinet 1. A fan 4 for absorbing the hot air inside the cabinet 1 is rotatably installed at one end of the top column 22 close to the base 3 along the axis. At the same time, a motor 5 is also installed at the bottom of the top cover 2 to drive the fan 4 to rotate. A temperature monitor 6 is arranged inside the cabinet 1, and the temperature monitor 6 is electrically connected to the motor 5 to drive the motor 5 to work when the temperature inside the cabinet 1 reaches a predetermined value, and the motor 5 drives the fan 4 to rotate to accelerate the process of discharging the hot air from the heat dissipation ring groove 21.
[0027] Preferably, in the present application, a stopper 221 is connected to the bottom end of the top column 22 to ensure that the fan 4 is always connected to the top column 22. The stopper 221 can also be an oil storage tank whose lateral dimension is larger than the cross-sectional area of the top column 22, and the oil storage tank stores lubricating oil for lubricating the fan 4. A plurality of oil leakage holes are provided on the top column 22 along the circumference, so that the connection structure between the top column 22 and the fan 4 can be lubricated during the rotation of the fan 4, thereby further reducing the resistance of the fan 4.
[0028] This structure is only an auxiliary structure for improving the smoothness of the fan 4 during rotation and reducing resistance, and is therefore not shown in the drawings.
[0029] Preferably, the fan blades of the fan 4 are of an arc-shaped structure, so that it has a larger air volume and a higher wind pressure, thereby improving the heat dissipation efficiency. In the actual production process, the curvature of the fan blades needs to be made according to the size of the switch cabinet and the installation requirements. The drawings in this application are only for structural reference.
[0030] Reference Figure 1 and Figure 3 Furthermore, a plurality of ventilation holes 12 for lateral heat dissipation are arranged in an array on the side wall of the cabinet 1, and a hinge shaft 13 is rotatably installed above the plurality of ventilation holes 12. A heat dissipation cover 14 matching the size of the ventilation hole 12 is fixedly connected to the hinge shaft 13. When the hinge shaft 13 rotates, the heat dissipation cover 14 can be driven to open and close the ventilation hole 12 to achieve lateral heat dissipation inside the cabinet 1. At the same time. The hinge shafts 13 at the positions of the plurality of ventilation holes 12 on the same side wall of the cabinet 1 are meshed and transmission-connected with a guide rod 15 with a rack on one side, and a power transmission device 7 for driving the guide rod 15 to move by rotating the fan 4 is connected to the top of the guide rod 15.
[0031] This structure enables the temperature monitor 6 to drive the fan 4 to rotate after detecting the temperature rise in the cabinet 1, and the fan 4 can drive all the ventilation holes 12 on the side wall of the cabinet 1 to open, thereby avoiding secondary driving and greatly improving the heat dissipation capacity of the cabinet 1, and realizing the autonomous heat dissipation function of the cabinet 1 without manual operation. For switch cabinets placed in outdoor environments, this structure greatly saves resources and manpower consumption for care and maintenance.
[0032] Preferably, the outer wall of the cabinet body 1 is provided with a chamfer below the ventilation hole 12 to prevent rainwater from accumulating there and entering the interior of the switch cabinet along with the air flow.
[0033] Preferably, a spring 8 for resetting the guide rod 15 is connected between the bottom end of the guide rod 15 and the bottom side of the cabinet 1, so that the cabinet 1 can be completely closed in a non-working state to prevent mosquitoes and dust from flying in.
[0034] Reference Figure 4, specifically, the power transmission device 7 includes a pressing ring 71 slidably sleeved on the top column 22, several connecting rods 72 integrally connected to the pressing ring 71 in the circumferential direction, and a stud 73 integrally connected to the side of the fan 4 close to the pressing ring 71. Among them, the stud 73 is provided with a hole along the axis and is rotatably sleeved on the top column 22, and the inner ring of the pressing ring 71 is threadedly sleeved on the stud 73. When the fan 4 rotates, due to the threaded connection between the stud 73 and the pressing ring 71, the pressing ring 71 will be driven to move downward, and drive several connecting rods 72 integrally connected to the pressing ring 71 to move downward. The number of the connecting rods 72 corresponds to that of the guide rods 15 one by one, and the end of the connecting rod 72 away from the pressing ring 71 always abuts against the top of the corresponding guide rod 15. When the connecting rod 72 moves downward, it will drive the guide rod 15 to move downward at the same time, and the guide rod 15 will drive the hinge shaft 13 to rotate through the meshing transmission structure, so that the heat dissipation cover 14 is opened.
[0035] It should be noted that only the top of the stud 73 is threadedly connected to the pressing ring 71, and the bottom is slidably connected to the pressing ring 71, so as to avoid friction caused by relative movement after the pressing ring 71 contacts the fan 4 and loss of the part life.
[0036] Refer to Figure 1 and Figure 4 , further, a reset assembly 9 for driving the pressing ring 71 back to its original position is also provided on the top column 22. The reset assembly 9 includes a torsion spring 91 fixedly sleeved on the side of the fan 4 close to the pressing ring 71 along the axis, a conductive ring 92 connected to the end of the torsion spring 91 away from the fan 4, and a magnetic attraction ring 93 provided on the side of the pressing ring 71 close to the fan 4. An electric component 94 that can energize the conductive ring 92 and has electromagnetic properties is fixedly installed on the fan 4, and the switch of the electric component 94 is electrically connected to the motor 5. When the motor 5 stops working, the electric component 94 receives a signal to energize the conductive ring 92 and make the conductive ring 92 magnetic.
[0037] At this time, the conductive ring 92 and the magnetic attraction ring 93 are adsorbed together, and the fan 4 will continue to rotate under the action of inertia, storing torsional potential energy for the torsion spring 91. Then the fan 4 will reverse under the action of the torsion spring 91. At this time, affected by the threaded connection between the stud 73 and the pressing ring 71, the pressing ring 71 will move away from the fan 4 along the stud 73 and finally return to the initial position. Finally, when the electric component 94 is powered off, the pressing ring 71 will no longer be affected by the fan 4, and the operation is simple.
[0038] In addition, since the conductive ring 92 and the magnetic attraction ring 93 are connected in a butting manner in this application, when the inertia of the fan 4 is too large and exceeds the torsional limit of the torsion spring 91, the conductive ring 92 and the magnetic attraction ring 93 will rotate relative to each other to offset the excess inertial kinetic energy, ensuring the structural stability of the parts and the stable operation of the overall structure.
[0039] The implementation principle of an outdoor switchgear cabinet with autonomous heat dissipation in an embodiment of this application is as follows: When the temperature inside the cabinet body 1 rises to a set value during the operation of the switchgear cabinet, the temperature monitor 6 will trigger the motor 5 to start working, and the motor 5 will drive the fan 4 to rotate. During this process, through the action of the heat dissipation ring groove 21 and the air intake channel 31, a hot air passage from top to bottom will be formed inside the cabinet body 1, and the hot air absorbed by the fan 4 will be quickly discharged from the switchgear cabinet through the inclined groove 211.
[0040] Some of the hot air will liquefy and enter the return groove 2111. The air pressure inside the cabinet body 1 decreases, and the external air enters the cabinet body 1 through the air intake channel 31 and the air suction holes 11, forming an air circulation path to achieve cyclic heat dissipation.
[0041] While the fan 4 is rotating, the pressing plate is also driven by the stud 73 to move downward, driving the connecting rod 72 and the guide rod 15 to move downward. Then the guide rod 15 will drive the heat dissipation cover 14 to open, thus forming a horizontal passage for the air inside the cabinet body 1 and further increasing the heat dissipation efficiency. Compared with the traditional switchgear cabinet, the switchgear cabinet in this application not only conforms to the principle of hot air rising, making it more convenient to discharge the hot air. At the same time, it has a larger ventilation rate to ensure rapid heat dissipation and maintain the long-term efficient operation of the switchgear cabinet.
[0042] The above are all the preferred embodiments of this application. The protection scope of this application is not limited by this. Therefore, all equivalent changes made according to the structure, shape, and principle of this application shall be covered within the protection scope of this application.
Claims
1. An outdoor switch cabinet capable of self-cooling, comprising a cabinet body (1) and a top cover (2) connected to the top of the cabinet body (1). A heat dissipation ring groove (21) is formed on the top cover (2). A plurality of air suction holes (11) are formed at the bottom of the cabinet body (1), and a base (3) is placed thereon. An air intake channel (31) communicating the air suction holes (11) with the outside is formed on the base (3), and it is characterized in that: The bottom of the top cover (2) is rotatably connected to a top column (22) along an axis, and a motor (5) is installed for driving the top column (22) to rotate. A fan (4) for absorbing heat is also fixedly sleeved on the top column (22). The motor (5) is electrically connected to a temperature monitor (6). A plurality of ventilation holes (12) are arranged in an array on the side wall of the cabinet (1). A plurality of the ventilation holes (12) are rotatably connected to hinge shafts (13), and a plurality of the hinge shafts (13) are connected to the top column (22). A heat dissipation cover (14) is provided for opening and closing the ventilation hole (12); a plurality of hinge shafts (13) located on the same side wall of the cabinet (1) are meshed and transmission-connected with a guide rod (15) having a rack on one side; a power transmission device (7) is connected to the top of the guide rod (15) for driving the guide rod (15) to move by rotating the fan (4); and a spring (8) for resetting the guide rod (15) is connected between the bottom end of the guide rod (15) and the bottom side of the cabinet (1).
2. The outdoor switch cabinet capable of self-cooling according to claim 1, wherein: The power transmission device (7) comprises a pressing ring (71) slidably mounted on the top column (22), a plurality of connecting rods (72) circumferentially connected to the pressing ring (71), and a stud (73) connected to a side of the fan (4) close to the pressing ring (71), wherein the plurality of connecting rods (72) correspond one to one with the plurality of guide rods (15), an end of the connecting rod (72) away from the pressing ring (71) abuts against the top of the guide rod (15) and is vertically movably clamped on the inner wall of the cabinet (1), the stud (73) is mounted on the top column (22) and the top end is connected to the internal thread of the pressing ring (71), and a reset component (9) for driving the pressing ring (71) to reset is also provided on the top column (22).
3. The outdoor switch cabinet capable of self-cooling according to claim 2, wherein: The reset assembly (9) comprises a torsion spring (91) fixedly sleeved along an axis on a side of the fan (4) close to the pressing ring (71), a conductive ring (92) integrally connected to an end of the torsion spring (91) away from the fan (4), and a magnetic attraction ring (93) arranged on a side of the pressing ring (71) close to the fan (4). An electric component (94) with electromagnetic properties that can energize the conductive ring (92) is installed on the fan (4). The electric component (94) is electrically connected to the motor (5), and when the motor (5) is powered off, the electric component (94) energizes the magnetic attraction ring (93).
4. The outdoor switch cabinet capable of self-cooling according to claim 1, characterized in that: The air intake channel (31) is an inclined structure, and there is a gap between the end of the air intake channel (31) close to the bottom of the base (3) and the ground.
5. The outdoor switch cabinet capable of self-cooling according to claim 1, wherein: The heat dissipation ring groove (21) comprises an inclined groove (211) connected to the top side of the top cover (2) and a vertical groove (212) connected to the bottom side of the top cover (2); a circular groove (2111) for storing water is provided on one side of the inclined groove (211) close to the bottom of the top cover (2); the circular groove (2111) is connected to a water outlet channel leading to the outside of the top cover (2).
6. The outdoor switch cabinet capable of self-cooling according to claim 5, characterized in that: A plurality of cross-section grooves (2112) for preventing liquefied hot air from flowing into the interior of the cabinet body (1) are arranged at equal intervals along the radial direction on the top side of the inclined groove (211).