An intelligent constant temperature heat dissipation control cabinet for photovoltaic, diesel and energy storage microgrids

Abstract

The present invention relates to the technical field related to distribution stations, and discloses an intelligent constant temperature heat dissipation control cabinet for a photovoltaic, energy-storage, and diesel microgrid. In order to solve the problems of easy dust intrusion and ineffective heat preservation in low-temperature environments caused by the normally open design of traditional blinds, a heat dissipation baffle is hinged on the side of the control cabinet. Under normal conditions, the heat dissipation baffle blocks the heat dissipation holes, so that the interior of the control cabinet is in a relatively sealed state. Under low-temperature conditions, since the inner cavity of the control cabinet is relatively sealed, it can effectively prevent the heat generated by the distribution device from overflowing, avoiding damage to the distribution device during low-temperature operation; when the temperature inside the control cabinet rises, the gas pressure inside the control cabinet increases due to the thermal expansion and contraction effect, thereby pushing the heat dissipation baffle open. In addition, the heat dissipation motor starts synchronously and causes the fan blade assembly to rotate, thereby intensifying the rapid discharge of high-temperature airflow from the inner cavity of the control cabinet, and ultimately achieving the effect of intelligent and timely heat dissipation adjustment.

Description

Technical Field

[0001] The present invention relates to the technical field related to power distribution stations, and in particular to an intelligent constant temperature heat dissipation control cabinet for a photovoltaic, energy-storage and diesel microgrid. Background Art

[0002] A solar-storage-diesel microgrid is an advanced distributed energy supply system that integrates solar photovoltaic power generation, high-efficiency energy storage technologies (such as lithium-ion battery storage systems), and diesel generators. The system's primary goal is to provide a stable, reliable, and environmentally friendly power supply, particularly suitable for remote areas, critical public facilities, and a wide range of commercial and industrial applications.

[0003] For ease of operation, control cabinets for solar-energy-storage-diesel microgrids are often installed outdoors. However, the commonly used, normally open louvered heat dissipation design in current control cabinets has significant drawbacks. Firstly, this design allows external pollutants such as dust and moisture to easily penetrate the control cabinet through the louvers, posing a threat to delicate electronic components and potentially causing short circuits, performance degradation, or even component damage. Secondly, because control cabinets are exposed to the changing outdoor environment, their heat dissipation requirements vary significantly with the seasons. In cold winters, to prevent damage to internal electronic components due to low temperatures, heat dissipation efficiency must be appropriately reduced to maintain a suitable operating temperature. In hot summers, however, the control cabinet must effectively dissipate heat to prevent internal temperatures from overheating and causing malfunctions.

[0004] Given these challenges, traditional cooling solutions using shutters that are always open are clearly unable to meet the complex cooling requirements of solar-energy-storage-diesel microgrid control cabinets. Therefore, it is necessary to develop a more flexible heat dissipation management device. Summary of the Invention

[0005] The present invention proposes an intelligent constant temperature heat dissipation control cabinet for a photovoltaic, energy-storage and diesel microgrid. The control cabinet has the function of intelligently and timely adjusting heat dissipation, aiming to solve the problems of dust intrusion caused by the normally open design of traditional blinds and the inability to effectively keep warm in low temperature environments.

[0006] To achieve the above-mentioned objectives, the present invention adopts the following technical solutions: an intelligent constant temperature and heat dissipation control cabinet for a photovoltaic, energy-storage and diesel microgrid, comprising: a control cabinet body, with a distributor arranged inside and a heat dissipation baffle installed on the outside to block the heat dissipation holes; a detection cylinder fixed to the top of the outside of the control cabinet body, the inner cavity of the detection cylinder communicating with the inner cavity of the control cabinet body, and a pressure piston movably sleeved on the inside of the detection cylinder; a timing switch fixed on the inside of the detection cylinder, after the pressure piston moves toward the timing switch and presses it, the timing switch will activate the heat dissipation mechanism to assist in quickly discharging the high-temperature airflow inside the control cabinet body.

[0007] Furthermore, the heat dissipation mechanism includes: a heat dissipation motor, which is fixed at the bottom inner side of the control cabinet, and a transfer gear is fastened on the output shaft of the heat dissipation motor; a transmission gear, which is movably installed at the bottom of the control cabinet, and the transmission gear is engaged with the outer teeth of the transfer gear; a fan blade kit group, which is fastened to the top of the transmission gear, and blades are arranged on the inner side of the fan blade kit group.

[0008] Furthermore, an adjusting screw column is provided on the inner side of the fan blade kit group, and an intermediate transmission frame is movably installed on the top of the fan blade kit group, a counterweight ball is fixedly installed on one end of the intermediate transmission frame, and a locking top column is threadedly connected to the other end, and an unlocking spring is connected between the intermediate transmission frame and the fan blade kit group; an annular groove is provided on the side of the adjusting screw column; an air intake filter plate is movably installed on the bottom of the control cabinet, and a movable magnetic block is fastened to the bottom of the adjusting screw column, and a telescopic tube is connected between one side of the bottom of the movable magnetic block and the air intake filter plate, a clearing top frame is movably installed on the top of the air intake filter plate, and a push frame top spring is connected between the clearing top frame and the air intake filter plate, and a fixed magnetic block that is magnetically attracted to the movable magnetic block is fixedly installed in the middle of the air intake filter plate.

[0009] Furthermore, a deflection gear is fastened to the rotating shaft of the heat dissipation baffle, a push plate gear row is movably installed on the side of the control cabinet, the external teeth of the push plate gear row and the deflection gear are engaged, and a reset push spring is connected between the bottom of the push plate gear row and the air intake filter plate.

[0010] Furthermore, a piston push spring is movably installed inside the detection cylinder.

[0011] Furthermore, an outer support seat is fastened to the inside of the control cabinet, and an inner movable seat coaxially arranged with the adjusting screw column is movably installed on the inner side of the outer support seat; a limited motion convex ring is provided on the outer side of the inner movable seat, and a spring top rod is movably installed on the inner side of the outer support seat, an air storage chamber is opened inside the inner movable seat, and detection contacts are symmetrically arranged on the inner side of the inner movable seat; an electric shock ring is fixedly installed on the top of the outer side of the adjusting screw column, and a sealing piston is fixed on the top of the adjusting screw column; a detection switch is fixed on the inside of the detection cylinder; a detection chamber is opened inside the outer support seat, and an air intake groove communicating with the detection chamber is opened on the side of the inner movable seat, a one-way exhaust valve is fixedly installed on the inner side of the outer support seat, a reset top seat is movably installed in the detection chamber, and a lifting top spring is connected between the reset top seat and the outer support seat; an exhaust groove communicating with the detection chamber is opened on the top of the outer support seat, and a one-way air intake valve is fixedly installed on the top of the inner movable seat.

[0012] Furthermore, a conical inclined surface is provided at the bottom of the reset top seat.

[0013] Furthermore, a damping hole is provided on the outer side of the outer support seat.

[0014] The present invention has the following beneficial effects:

[0015] This invention provides an intelligent constant-temperature heat dissipation control cabinet for a solar-energy-storage-diesel microgrid. A heat dissipation baffle is hingedly connected to the side of the control cabinet. Under normal conditions, the heat dissipation baffle fits tightly against the heat dissipation holes, maintaining a relatively sealed interior of the control cabinet, effectively isolating the intrusion of dust and moisture while maintaining a clean and stable internal environment.

[0016] This sealing design plays a critical role in low-temperature environments. Because the control cabinet cavity is relatively closed, it effectively prevents the escape of valuable heat generated by key components such as the power distributor. This prevents equipment performance degradation or even damage caused by rapid heat loss in low-temperature environments, ensuring stable operation of the control cabinet even in cold weather.

[0017] As the temperature inside the control cabinet gradually rises with equipment operation, the pressure inside the cabinet increases due to thermal expansion and contraction. This pressure is converted into mechanical force, pushing the heat dissipation baffle to slowly open, releasing the accumulated heat. Simultaneously, the heat dissipation motor starts, driving the fan assembly to rotate at high speed, creating a strong airflow that accelerates the discharge of hot air from the control cabinet cavity, effectively reducing the internal temperature and preventing overheating.

[0018] This intelligent, timely heat dissipation design not only achieves precise control of the control cabinet's internal temperature but also significantly improves heat dissipation efficiency, ensuring the PV-energy-storage-diesel microgrid system maintains optimal operating conditions under various environmental conditions. This innovative technology successfully addresses issues such as dust intrusion, insufficient low-temperature insulation, and low heat dissipation efficiency associated with traditional heat dissipation methods, effectively ensuring the reliable operation of the PV-energy-storage-diesel microgrid. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0020] The present invention can be more clearly understood from the following detailed description with reference to the accompanying drawings, in which:

[0021] Figure 1 This is a schematic diagram of the overall external three-dimensional structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the overall internal three-dimensional structure of the present invention;

[0023] Figure 3 This is a schematic diagram of the internal front cross-sectional structure of the present invention;

[0024] Figure 4 for Figure 3 The enlarged structural diagram at E in the middle;

[0025] Figure 5for Figure 3 The enlarged structural diagram at F in the middle;

[0026] Figure 6 for Figure 3 The schematic diagram of the structure at G in the middle is enlarged;

[0027] Figure 7 Schematic diagram of the transmission structure between the deflection gear and the push plate gear row;

[0028] Figure 8 It is a schematic diagram of the three-dimensional structure of the adjusting screw column;

[0029] Figure 9 This is a schematic diagram of the three-dimensional structure of the air intake filter plate;

[0030] Figure 10 This is a schematic diagram of the three-dimensional structure of the fan blade kit.

[0031] In the figure: 1. Control cabinet; 100. Heat dissipation hole; 2. Heat dissipation baffle; 200. Deflection gear; 3. Push plate gear row; 4. Distributor; 5. Detection cylinder; 500. Timer switch; 501. Press piston; 502. Piston push spring; 503. Detection switch; 6. Outer support seat; 600. Detection chamber; 601. Exhaust groove; 7. Inner movable seat; 700. Air storage chamber; 701. Inlet groove; 8. Adjustment screw column; 800. Sealing piston; 801. Electric shock ring; 802. Ring groove; 9. Fan blade kit ;10. Transmission gear;11. Air intake filter plate;12. Clearing top frame;120. Push frame top spring;13. Reset push spring;14. Transfer gear;15. Cooling motor;16. Movable magnetic block;160. Fixed magnetic block;17. Reset top seat;170. Lifting top spring;18. One-way intake valve;19. One-way exhaust valve;20. Limiting cam;21. Spring push rod;22. Damping hole;23. Detection contact;24. Counterweight ball;25. Intermediate transmission frame;250. Unlocking spring;251. Locking top column. DETAILED DESCRIPTION

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0033] For example 1, please refer to Figure 1 and Figure 2As can be seen, the control cabinet 1 is secured in place via the mounting bracket at the bottom. In use, the power distributor 4 within the control cabinet 1 enables comprehensive, intelligent control of the external photovoltaic panels, power supply, and diesel generator. The heat generated by the power distributor 4 during operation increases the temperature of the air within the control cabinet 1. Heat dissipation holes 100 on the side of the control cabinet 1 effectively dissipate this heat.

[0034] However, due to the constraints of the use environment, the control cabinet 1 is generally used outdoors, and external dust and other impurities are easy to float into the inner cavity of the control cabinet 1, thereby causing damage to the distributor 4. In order to solve this problem, combined with Figure 1-Figure 3 As can be clearly seen in the figure, a heat dissipation baffle 2 is hingedly connected to the side of the control cabinet 1 to block the heat dissipation holes 100. When the heat dissipation baffle 2 blocks the heat dissipation holes 100, the interior of the control cabinet 1 is relatively sealed, preventing external impurities from entering the interior of the control cabinet 1. Furthermore, when the ambient temperature of the control cabinet 1 is low, the heat dissipation baffle 2 relatively seals the interior of the control cabinet 1, preventing the escape of valuable heat from the control cabinet 1.

[0035] As the operating time of the electrical distribution unit 4 increases, the heat inside the control cabinet 1 continues to rise, causing the air temperature inside the control cabinet 1 to rise relatively. Common sense indicates that when the temperature of the airflow within the sealed space rises, the air expands and contracts due to heat, causing the gas pressure inside the control cabinet 1 to increase. When the gas pressure is sufficient to overcome the deflection force required to push the heat dissipation baffle 2, the heat dissipation baffle 2 is forced to deflect outward, allowing the high-temperature airflow in the control cabinet 1 cavity to escape, thereby reducing the temperature inside the control cabinet 1.

[0036] The second embodiment is a further improvement on the basis of the first embodiment. In actual application, when the heat dissipation baffle 2 is pushed outward, it means that the temperature in the inner cavity of the control cabinet 1 is high enough. Excessive working temperature also affects the service life of the distributor 4. Based on the above problems, the second embodiment provides a method to reduce the detection pressure and enhance the heat dissipation, combined with Figure 3 and Figure 6 It can be seen that a detection cylinder 5 is threadedly connected to the top of the outer side of the control cabinet 1, and the inner cavity of the detection cylinder 5 is connected to the inner cavity of the control cabinet 1. In addition, a pressure piston 501 is movably mounted on the inner side of the detection cylinder 5, and the pressure piston 501 and the inner side of the detection cylinder 5 are sealed. When the airflow in the inner cavity of the control cabinet 1 increases in pressure due to heat, it will push the pressure piston 501 away from the control cabinet 1. Figure 6It can be clearly seen that a timer switch 500 is securely attached to the inside of the detection cylinder 5. When the pressure piston 501 moves toward and depresses the timer switch 500, the timer switch 500 activates the heat dissipation mechanism, thereby assisting in the rapid discharge of high-temperature air from within the control cabinet 1. Because the timer switch 500 can time the heat dissipation mechanism after being activated, its single operating time is controllable, typically 3-10 minutes. When the timer switch 500 stops timing, the heat dissipation mechanism will also cease operation.

[0037] According to the specific layout of the heat dissipation mechanism, combined with Figure 2-Figure 4 It can be clearly seen that there is a heat dissipation motor 15 fixed by a motor mounting base at the bottom of the inner side of the control cabinet 1, and a transfer gear 14 is coaxially fastened to the output shaft of the heat dissipation motor 15. When the heat dissipation motor 15 drives the transfer gear 14 to rotate, the transfer gear 14 uses the external gear meshing method to synchronously rotate the transmission gear 10 arranged at the bottom of the control cabinet 1. Figure 2 It can be clearly seen that the fan blade assembly 9 is coaxially fastened to the top of the transmission gear 10, and blades are arranged on the inner side of the fan blade assembly 9. When the transmission gear 10 drives the blades to rotate through the fan blade assembly 9, the blades will cause the airflow at the bottom of the control cabinet 1 to be transported into its inner cavity, thereby increasing the heat dissipation intensity of the inner cavity of the control cabinet 1.

[0038] Furthermore, in order to ensure that the bottom of the control cabinet 1 is in a sealed state under normal conditions and the bottom of the control cabinet 1 is in an open state when the fan blade kit group 9 is working, the purpose of high temperature detection and enhanced heat dissipation can be achieved. Figure 8 、 Figure 9 and Figure 10 It can be clearly seen that the inner side of the fan blade set 9 is provided with an adjusting screw column 8, which is coaxially arranged with the fan blade set 9 and is usually a metal iron rod with a relatively large weight, so that the adjusting screw column 8 has sufficient downward strength during subsequent work. Figure 8 and Figure 10 It can be seen that an intermediate transmission frame 25 is movably installed on the top of the fan blade kit group 9, and the shape of the intermediate transmission frame 25 is "C". Specifically, a counterweight ball 24 is fixedly installed on one end of the intermediate transmission frame 25, so that when the fan blade kit group 9 drives the counterweight ball 24 to rotate through the intermediate transmission frame 25, the counterweight ball 24 tends to be thrown outward due to the centrifugal force. This end of the intermediate transmission frame 25 is also connected to the fan blade kit group 9 with an unlocking spring 250. Under the elastic force of the unlocking spring 250, the counterweight ball 24 moves closer to the direction of the fan blade kit group 9 under normal conditions. A locking top column 251 is threadedly connected to the end of the intermediate transmission frame 25 away from the counterweight ball 24. When the fan blade kit group 9 rotates, the counterweight ball 24 is thrown out and pulls the intermediate transmission frame 25 to suppress the unlocking spring 250. At the same time, the locking top column 251 will hit the threaded groove on the outside of the adjusting screw column 8. From Figure 3 and Figure 4 As can be seen in the figure, when the locking pin 251 abuts against the outer groove of the adjusting screw column 8 and rotates with the fan assembly 9, it will force the adjusting screw column 8 to move upward. Until the locking pin 251 abuts against the annular groove 802 formed on the side of the adjusting screw column 8, the locking pin 251 will stop pushing the adjusting screw column 8 to move upward.

[0039] from Figure 2-Figure 5 and Figure 9 It can be clearly seen that the air inlet filter plate 11 is movably mounted on the bottom of the control cabinet 1. The outer shape of the air inlet filter plate 11 is a rectangular parallelepiped. The bottom of the adjusting screw column 8 is fastened with a movable magnetic block 16. Figure 3 As can be seen, a telescopic tube is connected between the bottom side of the movable magnetic block 16 and the air intake filter plate 11. There are generally two telescopic tubes, which are used to restrict the adjustment screw column 8 to only reciprocating up and down movement. A clearing and blocking top frame 12 is movably mounted on the top of the air intake filter plate 11. A push-up spring 120 is connected between the clearing and blocking top frame 12 and the air intake filter plate 11. The spring force of the push-up spring 120 forces the clearing and blocking top frame 12 to move upward, ultimately opening the filter holes on the air intake filter plate 11 for filtering air. Similarly, a fixed magnetic block 160 is fixedly mounted in the middle of the air intake filter plate 11, which is magnetically attracted to the movable magnetic block 16. When the fixed magnetic block 160 and the movable magnetic block 16 are magnetically attracted and attached to each other, the clearing and blocking top frame 12 passes through the filter holes on the air intake filter plate 11, not only ejecting the obstructed material in the filter holes, but also sealing the filter holes by the clearing and blocking top frame 12, thus achieving a sealed bottom of the control cabinet 1.

[0040] In the second embodiment, under normal conditions, the weight of the adjusting screw column 8 and the magnetic attraction between the movable magnet 16 and the fixed magnet 160 force the adjusting screw column 8 to move downward along the telescopic tube, ultimately ejecting the clearing and blocking bracket 12 from the filter holes of the air inlet filter plate 11. At this point, the bottom of the control cabinet 1 is blocked. In conjunction with the description of the first embodiment, under normal conditions, the heat dissipation baffle 2 blocks the heat dissipation holes 100, rendering the interior of the control cabinet 1 relatively closed.

[0041] In a low temperature environment, the heat generated by the distributor 4 is in the sealed inner cavity of the control cabinet 1, which greatly reduces the heat loss. As the distributor 4 continues to generate heat, the air temperature in the inner cavity of the control cabinet 1 will rise and the pressure will increase relatively. Figure 6 As can be seen, when the air pressure within the control cabinet 1 increases, it pushes the pressure-actuated piston 501 to the right and contacts the timer switch 500. During this process, the pressure-actuated piston 501 experiences relatively little resistance, making it easier to sense changes in the air pressure within the control cabinet 1. The pressurized timer switch 500 activates and causes the heat dissipation motor 15 to operate for a specified period of time.

[0042] The heat dissipation motor 15, driven by the intermediate gear 14 and the transmission gear 10, forces the fan assembly 9 to rotate continuously. During this process, the fan assembly 9 rotates the counterweight ball 24, forcing it to pull the intermediate transmission frame 25 under the action of centrifugal force. The intermediate transmission frame 25 compresses the unlocking spring 250 to accumulate pressure, and at the same time, the locking pin 251 presses against the threaded groove on the outside of the adjustment screw 8. As the locking pin 251 rotates continuously with the fan assembly 9, it moves along the threaded groove and pushes the adjustment screw 8 upward. Simultaneously, as the adjustment screw 8 drives the movable magnet 16 upward, the movable magnet 16 initially forces the air filter plate 11 to move upward synchronously using the magnetic force between the movable magnet 16 and the fixed magnet 160. When the air filter plate 11 reaches its upper limit, its outer edge is blocked by a protruding block at the bottom of the control cabinet 1, preventing further upward movement. The continuously upward movement of the adjusting screw column 8 will cause the movable magnetic block 16 and the fixed magnetic block 160 to disengage. Then, under the elastic force of the push frame top spring 120, the clearing top frame 12 will also disengage from the filter hole on the air inlet filter plate 11. The upward adjustment screw column 8 will not continue to move upward until the locking top column 251 reaches the annular groove 802. At this time, since the filter hole on the air inlet filter plate 11 is opened, the fan blades on the fan blade assembly 9 rotate to allow the airflow at the bottom of the control cabinet 1 to pass through the filter hole of the air inlet filter plate 11 and then be transported to the inner cavity of the control cabinet 1. As the pressure in the inner cavity of the control cabinet 1 increases, the heat dissipation baffle 2 is pushed outward, and the airflow inside the control cabinet 1 is quickly discharged from the heat dissipation hole 100, thereby achieving rapid ventilation and heat dissipation of the inner cavity of the control cabinet 1.

[0043] When the timer switch 500 expires, the heat dissipation motor 15 stops, the fan assembly 9 ceases rotation, and the locking post 251 disengages from the adjustment screw 8 due to the force of the unlocking spring 250. At this point, the adjustment screw 8, under its own weight and the magnetic attraction between the movable magnet 16 and the fixed magnet 160, moves the movable magnet 16 and the air inlet filter plate 11 closer together, until the movable magnet 16 pushes the clearing bracket 12 to re-block the filter holes on the air inlet filter plate 11. Furthermore, as the movable magnet 16 pushes the blocked air inlet filter plate 11 downward, the heat dissipation baffle 2 has already blocked the heat dissipation holes 100, leaving the interior of the control cabinet 1 relatively sealed. The downward movement of the air inlet filter plate 11 causes the pressure in the control cabinet 1 to decrease, causing the pressure piston 501 to move leftward, thereby releasing the pressure on the timer switch 500. At this point, the entire device returns to its normal position. If the temperature in the inner cavity of the control cabinet 1 rises again later, the above-mentioned cycle can be repeated.

[0044] Example 3, as a supplement to Example 2, in order to further increase the sensitivity of the detection / reset of the pressing piston 501, please refer to Figure 2 、 Figure 3 and Figure 7 It can be clearly seen that the deflection gear 200 is securely connected to the rotating shaft of the heat dissipation baffle 2. Correspondingly, a push plate gear row 3 is movably mounted on the side of the control cabinet 1. The push plate gear row 3 can only perform a unidirectional reciprocating motion up and down along the side of the control cabinet 1. Furthermore, the external teeth of the push plate gear row 3 and the deflection gear 200 mesh. When the push plate gear row 3 moves downward, the meshing transmission between the push plate gear row 3 and the deflection gear 200 forces the heat dissipation baffle 2 to deflect toward the heat dissipation hole 100. A steel plate frame is connected to the bottom of the push plate gear row 3, and a return spring 13 is connected between the steel plate frame and the air intake filter plate 11. In actual use, when the air intake filter plate 11 moves upward following the adjustment screw column 8, the pressure on the return spring 13 is relatively relaxed. After the movable magnet 16 and the fixed magnet 160 disengage, the air intake filter plate 11 is forced to maintain its upper limit position due to the elastic force of the reset spring 13 and the magnetic attraction between the movable magnet 16 and the fixed magnet 160. Subsequently, as the blades of the fan assembly 9 continue to rotate, airflow from the bottom of the control cabinet 1 is continuously poured into the interior of the control cabinet 1, forcing the heat dissipation baffle 2 to deflect outward. Simultaneously, the outward-deflecting heat dissipation baffle 2 engages the deflection gear 200 with the push plate gear row 3, forcing the push plate gear row 3 to move upward and further compress the reset spring 13.

[0045] Finally, when the timer switch 500 ends and the heat dissipation motor 15 stops, the force of the reset spring 13 pushes the push plate teeth 3 downward rapidly, forcing the heat dissipation baffle 2 to quickly block and seal the heat dissipation holes 100. Furthermore, when the heat dissipation baffle 2 cannot move, the force of the reset spring 13 maintains the air intake filter plate 11 at its upper limit. Subsequently, when the adjustment screw 8 pushes the movable magnetic block 16 downward, the movable magnetic block 16 presses the clearing bracket 12 downward, sealing the filter holes on the air intake filter plate 11. Then, under the weight of the adjustment screw 8, the air intake filter plate 11 is further pushed downward, pressing the reset spring 13, causing the sealed air intake filter plate 11 to continue to be pushed downward by the adjustment screw 8. It can be seen that, with the assistance of the above structure, after the heat dissipation motor 15 stops moving, the heat dissipation baffle 2 can quickly block the heat dissipation holes 100, providing the necessary prerequisite for sealing the interior of the control cabinet 1. Moreover, after the heat dissipation baffle 2 seals the heat dissipation hole 100, the elastic force of the reset push spring 13 is used to force the air intake filter plate 11 to always be at the upward limit, so that it can be ensured that after the clearing top frame 12 blocks the filter holes on the air intake filter plate 11, when the air intake filter plate 11 moves downward under the gravity of the adjusting screw column 8, the pressure in the inner cavity of the control cabinet 1 will be relatively reduced, so that the pressing piston 501 has sufficient strength to move away from the timing switch 500.

[0046] On this basis, combined with Figure 6 As can be seen, a piston push spring 502 is movably mounted inside the detection cylinder 5, abutting the end of the pressure piston 501. Under the elastic force of the piston push spring 502, the pressure piston 501 is constantly urged toward the timer switch 500. This advantageous feature is that, as mentioned above, when the control cabinet 1 is in normal operation, the pressure inside the control cabinet 1 decreases, causing the pressure piston 501 to move to the left. This movement moves the pressure piston 501 away from the timer switch 500 while also compressing the piston push spring 502. When the temperature inside the control cabinet 1 increases due to the rising air pressure, the pressure inside the control cabinet 1 is insufficient to force the pressure piston 501 away from the timer switch 500. At this point, the pressure increases, coupled with the elastic force of the piston push spring 502, causing the pressure piston 501 to move toward the timer switch 500, squeezing the timer switch 500 and ultimately switching the timer switch 500 on. It can be seen from this that due to the presence of the piston push spring 502, the pressure piston 501 has obvious movement changes after the pressure in the inner cavity of the control cabinet 1 changes, ensuring that after the temperature in the inner cavity of the control cabinet 1 rises, the pressure piston 501 can quickly contact the timing switch 500 and turn it on, thereby improving the sensitivity of the pressure piston 501 to detect temperature changes.

[0047] The fourth embodiment is a further improvement on the third embodiment. Under normal conditions, the inner cavity of the control cabinet 1 is sealed and relatively low in pressure relative to the outside, so that the pressure piston 501 has sufficient strength to overcome the elastic force of the piston push spring 502 and move away from the timer switch 500. However, in actual use, due to the constraints of the environment and the service life of the structure, the control cabinet 1 may have problems with poor sealing or sealing failure after long-term use. For such problems, external personnel cannot know and cannot perform rapid maintenance. In order to solve such problems, this fourth embodiment refers to Figure 2-Figure 4 It can be clearly seen that the inner side of the control cabinet 1 has an outer support base 6 supported and fastened by three legs, and an inner movable base 7 coaxially arranged with the adjusting screw column 8 is movably installed inside the outer support base 6. Figure 4 It can be seen that a limiting convex ring 20 with an isosceles triangle cross-section is provided on the outer side of the inner movable seat 7, and the limiting convex ring 20 is close to the outer top of the inner movable seat 7. Correspondingly, a spring push rod 21 is movably installed on the inner side of the outer support seat 6. It should be noted that the spring push rod 21 is composed of a spring and a pair of sleeve push rods. Under the action of the spring, the push rod is always against the outer side of the inner movable seat 7. When the inner movable seat 7 moves up and down, the limiting convex ring 20 must pass over the spring push rod 21. Therefore, in actual arrangement, the cooperation between the spring push rod 21 and the limiting convex ring 20 makes the movement of the inner movable seat 7 have a certain resistance. With respect to the cooperation and disengagement between the outer support seat 6 and the inner movable seat 7, combined with Figure 4 and Figure 6 It can be seen that an electric shock ring 801 is fixedly installed on the top of the outer side of the adjusting screw column 8, the sealing piston 800 is fixed to the top of the adjusting screw column 8 and is located above the electric shock ring 801, and a downward-opening air storage chamber 700 is provided inside the inner movable seat 7, and the sealing piston 800 can move up and down along the inside of the inner movable seat 7 and squeeze the airflow in the air storage chamber 700 at the same time. Detection contacts 23 are symmetrically arranged on the inside of the inner movable seat 7, and the detection contacts 23 are connected in series with the detection switch 503 fixed to the inside of the detection cylinder 5 and located above the timing switch 500. When the sealing piston 800 is in the downward process, the sealing piston 800 is located above the detection contact 23, and the electric shock ring 801 just contacts the detection contact 23, and the two detection contacts 23 are connected by the electric shock ring 801. If the piston 501 is pressed to squeeze the timing switch 500 at this time, the detection switch 503 will be squeezed at the same time. If the detection switch 503 and the detection contact 23 are connected at the same time, the motor will start again, and the startup time will be the same as the startup time adjusted by the timing switch 500.

[0048] When the adjusting screw rod 8 moves upward and pushes the sealing piston 800 to move in the air storage chamber 700, the air flow pressure in the air storage chamber 700 will increase due to the squeezing. Figure 4 It can be seen that a detection chamber 600 is provided inside the outer support seat 6, and an air inlet groove 701 communicating with the detection chamber 600 is provided on the side of the inner movable seat 7. When the airflow pressure in the air storage chamber 700 increases, the airflow will be transported into the detection chamber 600 along the air inlet groove 701. A one-way exhaust valve 19 is fixedly installed on the inner side of the outer support seat 6 and located on the transport path of the air inlet groove 701. This not only ensures that the airflow in the air storage chamber 700 is transported in one direction to the detection chamber 600, but also utilizes the aperture restriction of the one-way exhaust valve 19 to allow the airflow in the air storage chamber 700 to flow into the detection chamber 600 at a low speed, thereby preventing the airflow in the air storage chamber 700 from being quickly squeezed out when the sealing piston 800 moves upward. In more detail, a reset top seat 17 is movably installed in the detection chamber 600, and a lifting top spring 170 is connected between the reset top seat 17 and the outer support seat 6. Under the elastic force of the lifting top spring 170, the reset top seat 17 moves upward and squeezes the detection chamber 600. In combination with the above, when the air flow pressure in the air storage chamber 700 increases, the air flow will be transported unidirectionally to the detection chamber 600. When the air flow pressure in the detection chamber 600 increases, it will push the reset top seat 17 to move downward and approach the reset top seat 17. Figure 4It can be clearly seen that the bottom of the reset top seat 17 is provided with a conical inclined surface. When the conical inclined surface at the bottom of the reset top seat 17 is pressed on the counterweight ball 24, the counterweight ball 24 is forced to be compressed and move closer to the fan blade assembly group 9, eventually causing the locking top column 251 to move away from the threaded groove on the outside of the adjustment screw column 8. The top of the outer support seat 6 is provided with an exhaust groove 601 that is connected to the detection chamber 600. When the inner movable seat 7 reaches the upper limit, the air intake groove 701 is connected to the one-way exhaust valve 19, and the side of the inner movable seat 7 blocks the exhaust groove 601, causing the inner movable seat 7 to reach the upper limit and the detection chamber 600 can only communicate with the air storage chamber 700. A one-way air intake valve 18 is fixedly installed on the top of the inner movable seat 7. When the sealing piston 800 moves downward, the pressure in the air storage chamber 700 decreases. The one-way air intake valve 18 can be used to replenish the air flow in the control cabinet 1 to the air storage chamber 700.

[0049] In actual application, according to the above multiple embodiments, when the temperature in the inner cavity of the control cabinet 1 rises, the pressing piston 501 will squeeze the timer switch 500, and the timer switch 500 will be used to turn on the heat dissipation motor 15. During this process, when the rotating fan blade assembly group 9 causes the locking top column 251 to reach the outer threaded groove of the adjusting screw column 8, the upward adjusting screw column 8 will move upward by pushing the sealing piston 800. At this time, the upward sealing piston 800 will first push the detection contact 23 upward, and the detection contact 23 is pushed by the sealing piston 800 to move the inner movable seat 7 upward. Finally, the limiting convex ring 20 passes over the spring top rod 21, and the air inlet groove 701 and the one-way exhaust valve 19 are connected, and the outer side of the top of the inner movable seat 7 blocks the exhaust groove 601.

[0050] Since the material of the sealing piston 800 is preferably rubber, when the inner movable seat 7 moves upward to the limit, the sealing piston 800 will pass over the detection contact 23 by means of its own deformation. Afterwards, the electric shock ring 801 is connected to the detection contact 23, but since the heat dissipation motor 15 has been connected at this time, even if the detection contact 23 and the detection switch 503 are turned on at the same time, the heat dissipation motor 15 is still in operation. As the sealing piston 800 squeezes the airflow in the air storage chamber 700, the airflow passes through the air inlet groove 701 and the one-way exhaust valve 19 and enters the detection chamber 600, causing the air flow in the detection chamber 600 to increase and the pressure to increase. When the locking top column 251 moves to the annular groove 802, the adjusting screw column 8 moves upward to the limit. At this time, although the air flow in the detection chamber 600 increases, it is not enough to make the descending reset top seat 17 contact the counterweight ball 24.

[0051] After the timer switch 500 expires, the fan assembly 9 ceases rotation, and the locking post 251 disengages the annular groove 802, no longer restricting the movement of the adjustment screw 8. The adjustment screw 8 then rapidly descends due to its own weight and the magnetic attraction between the movable magnet 16 and the fixed magnet 160. As the adjustment screw 8 compresses the clearing bracket 12 and pushes the air filter plate 11 downward, the pressure within the control cabinet 1 decreases. At this point, the sealing piston 800 remains above the detection contact 23. The continued descent of the adjustment screw 8 also causes the pressure within the control cabinet 1 to decrease. This decrease in pressure within the control cabinet 1 causes the pressing piston 501 to depress the piston spring 502 and move relatively away from the timer switch 500 and the detection switch 503. When the descending sealing piston 800 contacts the detection contact 23, the heat dissipation motor 15 will not activate because the detection switch 503 is not engaged. As the adjusting screw column 8 moves downward under gravity, the sealing piston 800 passes the detection contact 23 again. As the detection contact 23 pulls the inner movable seat 7 downward, the spring push rod 21 again passes over the stop ring 20, causing the inner movable seat 7 to no longer block the exhaust groove 601. The airflow in the detection chamber 600 is released outward, and the reset seat 17 moves upward and relatively away from the counterweight ball 24 under the elastic force of the lifting spring 170. Ultimately, the adjusting screw column 8 completely disengages from the inner movable seat 7 and moves downward.

[0052] If there is no leakage in the control cabinet 1, when the temperature inside the control cabinet 1 rises again, the internal pressure of the control cabinet 1 increases due to the thermal expansion and contraction effect, thereby pushing the pressing piston 501 to the right to contact the timing switch 500 again. The timing switch 500 restarts the heat dissipation motor 15, and then the timed heat dissipation is performed again according to the above content.

[0053] If a small leak occurs in the control cabinet 1, external air will slowly flow into the inner cavity of the control cabinet 1 according to the leak location. Then, under the elastic force of the piston push spring 502, the pressing piston 501 will continue to move to the right until the timer switch 500 is turned on again, and the heat dissipation motor 15 will start again to perform timed heat dissipation. When the timed heat dissipation ends, the state will be restored to the initial state as described above.

[0054] If a large leak occurs in the control cabinet 1, after the timed heat dissipation ends, the sealing piston 800 is pulled downward by the weight of the adjusting screw column 8. During this process, although the adjusting screw column 8 pushes the air inlet filter plate 11 downward, which will cause the pressure in the control cabinet 1 to decrease, the airflow pressure in the control cabinet 1 will not change due to the large leakage area. At this time, the pressing piston 501 will always press against the timing switch 500 and the detection switch 503 under the elastic force of the piston push spring 502. When the electric shock ring 801 moves downward and contacts the detection contact 23, the connection between the detection contact 23 and the detection switch 503 will cause the heat dissipation motor 15 to start again. The start of the heat dissipation motor 15 forces the locking top column 251 to press against the threaded groove outside the adjusting screw column 8 again. As the fan assembly 9 drives the locking top column 251 to rotate, the adjusting screw column 8 is forced to move upward again. The upward moving sealing piston 800 will squeeze the airflow in the air storage chamber 700, so that the airflow in the air storage chamber 700 will be input into the detection chamber 600 again. Since the inner movable seat 7 has not been separated from the outer support seat 6, the airflow that was previously filled into the air storage chamber 700 still exists in the detection chamber 600. As the airflow is once again rushed into the detection chamber 600, the reset top seat 17 will move further downward until the reset top seat 17 contacts the counterweight ball 24. The counterweight ball 24 is influenced by the conical inclined surface at the bottom of the reset top seat 17, which forces the counterweight ball 24 to move in the direction close to the fan blade kit group 9 until the locking top column 251 is disengaged from the threaded groove on the adjusting screw column 8. Afterwards, the adjusting screw column 8 descends again and pushes the air intake filter plate 11 downward again.

[0055] Based on the above content, it can be known that when the sealing piston 800 moves upward for the second time, the air storage chamber 700 is used to pressurize the detection chamber 600 again, thereby resetting the top seat 17 to push the counterweight ball 24 back. Therefore, when the counterweight ball 24 pushes the locking top column 251 to disengage from the adjusting screw column 8, the adjusting screw column 8 will fall again during the rotation of the fan blade kit group 9. Because the air intake filter plate 11 has been blocked by the clearing top frame 12 when the adjusting screw column 8 pushes the air intake filter plate 11 downward, the air intake filter plate 11 has been blocked by the clearing top frame 12, so that the bottom of the control cabinet 1 will not deliver airflow into the inner cavity of the control cabinet 1. The heat dissipation baffle 2 will quickly stick to the heat dissipation hole 100 under the push of its own gravity and the elastic force of the reset push spring 13. Since the interval between the two falls is relatively short, the heat dissipation baffle 2 will hit the control cabinet 1 twice within a short interval.

[0056] Not only that, combined with Figure 4As can be seen, a damping hole 22 is defined on the outside of the outer support seat 6. The diameter of the damping hole 22 is smaller than that of the one-way exhaust valve 19. This prevents the damping hole 22 from completely releasing the airflow into the detection chamber 600 when the one-way exhaust valve 19 inputs air. When the reset seat 17 passes over the damping hole 22, the detection chamber 600 communicates with the outside through the damping hole 22, thereby relieving the pressure of the gas in the detection chamber 600. As the adjustment screw column 8 descends, the reset seat 17 also slowly ascends and disengages from the counterweight ball 24. When the airflow in the detection chamber 600 continues to decrease, the reset top seat 17 moves upward again and disengages from the counterweight ball 24. Since the fan blade kit group 9 is still rotating at this time, the counterweight ball 24 pulls the locking top column 251 again to the threaded groove on the outside of the adjusting screw column 8, and the adjusting screw column 8 moves upward again. In this cycle, the adjusting screw column 8 will have a tendency to move up and down. Combined with the above, when the adjusting screw column 8 moves downward, it will cause the heat dissipation baffle 2 to block the heat dissipation hole 100. When the frequency of the adjusting screw column 8 moving up and down increases, the frequency of the heat dissipation baffle 2 hitting the side of the control cabinet 1 also increases accordingly, so that the sound generated by multiple impacts is used to warn outsiders that there is a problem of poor sealing in the control cabinet 1.

[0057] It should be noted that when the sealing piston 800 moves downward and approaches the detection contact 23, if the damping hole 22 at this time does not release the pressure in the detection chamber 600, the reset top seat 17 will still press the counterweight ball 24. At the next moment, as the sealing piston 800 moves downward again, the spring top rod 21 will move along the inclined surface of the one-way exhaust valve 19. At this time, the inner movable seat 7 is relatively far away from the outer support seat 6, and the inner movable seat 7 partially releases the blockage of the exhaust groove 601, and the airflow in the detection chamber 600 is quickly released from the exhaust groove 601. At the same time, the spring top rod 21 does not cross the limit cam 20. Afterwards, as the fan blade kit group 9 rotates, the locking top column 251 again reaches the threaded groove on the outside of the adjusting screw column 8, so that the adjusting screw column 8 moves upward again. This cycle is repeated, so that after a serious air leakage, the adjusting screw column 8 is in a state of reciprocating movement up and down.

Claims

1. An intelligent constant temperature heat dissipation control cabinet for a solar-storage-diesel microgrid, characterized in that: include: The control cabinet has a power distribution unit inside and a heat dissipation baffle installed on the outside to block the heat dissipation holes; The detection cylinder is fixed on the outer top of the control cabinet, the inner cavity of the detection cylinder is communicated with the inner cavity of the control cabinet, and a pressure piston is movably sleeved on the inner side of the detection cylinder; The timing switch is fixed inside the detection cylinder. When the piston is pressed toward the timing switch and pressed, the timing switch will activate the heat dissipation mechanism to assist in quickly discharging the high-temperature air inside the control cabinet. The heat dissipation mechanism includes: The heat dissipation motor is fixed at the bottom of the inner side of the control cabinet, and the transfer gear is fastened to the output shaft of the heat dissipation motor; The transmission gear is movably mounted on the bottom of the control cabinet, and the transmission gear is meshed with the outer teeth of the transfer gear; The fan blade assembly is fastened to the top of the transmission gear, and blades are arranged on the inner side of the fan blade assembly; An adjusting screw column is installed inside the fan blade kit, and an intermediate transmission frame is movably installed on the top of the fan blade kit. A counterweight ball is fixedly installed on one end of the intermediate transmission frame, and a locking top column is threadedly connected to the other end. An unlocking spring is connected between the intermediate transmission frame and the fan blade kit; An annular groove is provided on the side of the adjusting screw column; An air intake filter plate is movably mounted on the bottom of the control cabinet, a movable magnetic block is fastened to the bottom of the adjusting screw column, a telescopic tube is connected between the bottom side of the movable magnetic block and the air intake filter plate, a clearing and plugging top frame is movably mounted on the top of the air intake filter plate, and a push-frame top spring is connected between the clearing and plugging top frame and the air intake filter plate, and a fixed magnetic block that is magnetically attracted to the movable magnetic block is fixedly mounted in the middle of the air intake filter plate; A piston push spring is movably installed inside the detection cylinder; An external support base is fastened to the inside of the control cabinet, and an internal movable base coaxially arranged with the adjusting screw column is movably installed on the inside of the external support base; detection contacts are symmetrically arranged on the inside of the internal movable base; an electric shock ring is fixedly installed on the top of the outer side of the adjusting screw column, and a detection switch is fixed on the inside of the detection cylinder; A limited motion convex ring is provided on the outer side of the inner movable seat, and a spring push rod is movably installed on the inner side of the outer support seat, and an air storage chamber is provided inside the inner movable seat; A sealing piston is fixed to the top of the adjusting screw column; A detection cavity is provided inside the outer support seat, and an air inlet groove communicating with the detection cavity is provided on the side of the inner movable seat. A one-way exhaust valve is fixedly installed on the inner side of the outer support seat, a reset top seat is movably installed in the detection cavity, and a lifting top spring is connected between the reset top seat and the outer support seat; An exhaust groove communicating with the detection cavity is provided on the top of the outer support seat, and a one-way air inlet valve is fixedly installed on the top of the inner movable seat.

2. The intelligent constant temperature heat dissipation control cabinet for the photovoltaic, storage and diesel microgrid according to claim 1 is characterized in that: A deflection gear is fastened to the rotating shaft of the heat dissipation baffle, a push plate gear row is movably installed on the side of the control cabinet, the external teeth of the push plate gear row and the deflection gear are engaged, and a reset push spring is connected between the bottom of the push plate gear row and the air intake filter plate.

3. The intelligent constant temperature heat dissipation control cabinet for the photovoltaic, storage and diesel microgrid according to claim 1 is characterized in that: The bottom of the reset top seat is provided with a conical inclined surface.

4. The intelligent constant temperature heat dissipation control cabinet for the photovoltaic, storage and diesel microgrid according to claim 1 is characterized in that: A damping hole is provided on the outer side of the outer support seat.

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