Photovoltaic power plant electrical equipment heat dissipation device
By designing a heat dissipation device with tightly fitting L-shaped heat dissipation fins and automated pipeline connections, the problems of low heat dissipation efficiency and inconvenient maintenance of electrical equipment in photovoltaic power plants have been solved, achieving efficient heat dissipation and convenient maintenance.
Patent Information
- Application Number
- CN202611093857.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-07-22
- Publication Date
- 2026-08-25
AI Technical Summary
Existing photovoltaic power plant electrical equipment has low heat dissipation efficiency, poor fit with the equipment, inconvenient maintenance and repair, and poor pipeline connection sealing, which affects the stability of equipment operation and maintenance.
A heat dissipation device including a heat dissipation component, a control component, and a docking component was designed. The L-shaped heat dissipation fins are tightly attached to the outside of the equipment. The fins are driven to move by a dual-axis electric push rod. Combined with the cooling pipe and the exhaust head, a high-efficiency heat dissipation channel is formed. Automatic docking and sealing of the pipeline are achieved by inserting pipes and limiting strips.
It achieves efficient equipment cooling, ensures the safety and stability of equipment operation, simplifies the maintenance process, improves the ease of operation and the automation level of the heat dissipation device, and prevents cold air leakage.
Smart Images
Figure CN122638878A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of photovoltaic power generation technology, specifically a heat dissipation device for electrical equipment in a photovoltaic power plant. Background Technology
[0002] With the continuous advancement of smart grid construction and the rapid development of 750 kV and above AC transmission technology, the power supply links, such as large-scale power grid security and defense systems and intelligent dispatch systems, place higher demands on the operational stability of new energy grid-connected nodes like photovoltaic power plants. Inverters, transformers, and other electrical control and distribution equipment within photovoltaic power plants are crucial for ensuring stable power transmission and the effective execution of intelligent dispatch commands. These electrical devices are typically installed in outdoor distribution or power supply cabinets. During prolonged high-load operation, their internal electronic components and power modules generate significant heat. If this heat cannot be dissipated effectively and promptly, the internal temperature of the equipment will rise sharply, not only reducing power generation efficiency but also potentially causing thermal failure or even burnout of components. This, in turn, affects the continuity of power supply and the normal operation of the intelligent dispatch system, seriously threatening the stability of large-scale power grid security and defense systems.
[0003] However, existing heat dissipation devices for such electrical enclosures often rely on simple fan blowing or natural ventilation, resulting in low heat dissipation efficiency. Furthermore, the contact between the heat sink and the equipment inside the enclosure is often not tight enough, resulting in significant contact thermal resistance. This prevents heat from being quickly absorbed and dissipated. When electrical equipment needs to be inspected or maintained, the heat dissipation components often occupy internal cabinet space, hindering operators from approaching the equipment. Moreover, the connections of cooling pipes are mostly fixed or require cumbersome manual disassembly and assembly, lacking an automatic clamping and disassembly mechanism. This makes it difficult to balance the needs of efficient heat dissipation and convenient maintenance. In addition, existing heat dissipation devices often fail to guarantee the sealing and firmness of connections during pipe splicing, easily causing cold air leakage and reducing the heat dissipation effect. Summary of the Invention
[0004] Technical problems to be solved The purpose of this invention is to overcome the shortcomings of existing photovoltaic power plant electrical equipment heat dissipation devices, such as low heat dissipation efficiency, poor fit with the equipment, inconvenient maintenance and repair, and poor sealing of pipeline connections.
[0005] Technical solution To achieve the above objectives, the present invention provides the following technical solution: a heat dissipation device for electrical equipment in a photovoltaic power plant, comprising: The distribution cabinet has two hinged doors on its front side, and a ventilation window is installed on one side of the distribution cabinet. The photovoltaic electrical equipment body is installed inside the distribution cabinet. A heat dissipation component is located inside the distribution cabinet, with its inner side attached to the outer side of the photovoltaic electrical equipment body, for dissipating heat generated by the photovoltaic electrical equipment body. The control component is fixedly connected to the surface of the heat dissipation component, and both ends of the control component are fixedly connected to the inside of the power distribution cabinet, for driving the heat dissipation component to adhere, clamp, and detach from the electrical equipment; The docking component is fixedly connected to the middle position inside the control component, and the output end of the docking component is movably connected to the middle position of the heat dissipation component, so as to splice with the heat dissipation component to form a complete heat dissipation channel.
[0006] Furthermore, the heat dissipation component includes: The heat dissipation fins are L-shaped, arranged in a linear array and symmetrically arranged in two groups, with the tops of the two groups of heat dissipation fins close to each other and spliced together in an inverted U-shape. The heat dissipation fins are attached to the outside of the photovoltaic electrical equipment body. The cooling tubes are provided in several parts, and each cooling tube is fixedly connected to the interval between two heat dissipation fins. Each cooling tube is fixedly connected to a connecting pipe at its opposite end. The connecting pipe has a groove on its outer side, and the groove is annular.
[0007] Furthermore, the heat dissipation component also includes: The diverter head is trapezoidal, and one end of the diverter head is fixedly connected to the end of the cooling pipe away from the connecting pipe; The telescopic pipe has several sections, and the other end of the telescopic pipe extends through the power distribution cabinet to its outside for connecting to the cold air conveying equipment. The internal passage of the diverter, telescopic tube, and cooling tube connected thereto forms a passage for transporting cold air to carry away the heat adsorbed by the heat dissipation fins.
[0008] Furthermore, the other end of the cooling pipe away from the connecting pipe is fixedly connected to an exhaust head, the other end of the exhaust head passes through the power distribution cabinet and is fixedly connected to an exhaust window, and the exhaust head is slidably connected to the power distribution cabinet. The exhaust window, the exhaust head and the cooling pipe are internally interconnected, and the exhaust window is located directly below the heat dissipation window.
[0009] Furthermore, the control component includes: A connecting beam is longitudinally fixed to the top of the inside of the distribution cabinet; A dual-axis electric actuator, wherein the dual-axis electric actuator is fixedly connected to the middle position of the connecting beam, and the telescopic ends of the dual-axis electric actuator extend to both ends respectively; The fixing strip has two symmetrically arranged bars, and the opposite sides of the fixing strip are respectively fixedly connected to the telescopic end of the dual-axis electric push rod. The bottom of the fixing strip is respectively fixedly connected to the outer bend of the two sets of heat dissipation fins.
[0010] Furthermore, two symmetrically arranged stabilizing rods are fixedly connected to both sides of the connecting beam. The other end of each stabilizing rod passes through a fixing strip and is fixedly connected to the inside of the distribution cabinet. The connection between the stabilizing rod and the fixing strip is slidably connected.
[0011] Furthermore, the outer side of the stabilizer bar is movably connected to a transmission frame, and the transmission frame is located on the outer side of the heat dissipation fins. The bottom of the transmission frame is fixedly connected to the surface of the exhaust head and the diverter head, respectively. When the dual-axis electric push rod extends and retracts to drive the heat dissipation fins and cooling pipes to dock or separate, the exhaust head and the diverter head are moved synchronously through the transmission frame. A cooling fan is fixedly connected to the inner side of one of the transmission frames, and the cooling fan is located on the side near the splitter head, which is used to exhaust the heat dissipated into the power distribution cabinet through the heat dissipation window.
[0012] Furthermore, the docking component includes: A number of fixed rods are provided and are uniformly fixed to the bottom of the connecting beam in a linear array; A positioning ring, which is fixedly connected to the other end of the fixing rod; The insertion tube is fixedly connected to the inner side of the positioning ring, and both ends of the insertion tube extend outward from the positioning ring and are respectively inserted into the interior of the connecting tube. The limiting strip is U-shaped and arranged in a ring array. It is movably connected to both sides of the positioning ring by a torque spring and a rotating shaft. The initial state of the limiting strip is that it is tilted outward and unfolded. When the inside of the limiting strip, near the positioning ring, contacts one end of the connecting tube, the limiting strip is parallel to the connecting tube, allowing the other end of the limiting strip to be inserted into the slot to complete the limiting.
[0013] Furthermore, the docking component also includes: A sliding ring, which is slidably connected to the outside of the fixed rod; An electric telescopic rod, wherein the telescopic end of the electric telescopic rod is fixedly connected to the surface of the sliding ring, and the other end of the electric telescopic rod is fixedly connected to the bottom of the connecting beam; The tightening steel cables are symmetrically arranged on both sides of the positioning ring, and one end of the tightening steel cables is fixedly connected to the bottom of the sliding ring. A fixing ring is located directly below the sliding ring and is fixedly connected to the outside of the fixing rod.
[0014] Furthermore, two symmetrically arranged control blocks are fixedly connected to the bottom of the fixing ring. The other end of the tightening steel cable passes through the control block and is fixedly connected to the bottom of the control block in a circular trajectory around the outside of the limiting strip. This is used to pull the tightening steel cable from the inside of the control block by the contraction of the electric telescopic rod, thereby tightening the tightening steel cable surrounding the outside of the limiting strip.
[0015] Compared with existing technologies, this heat dissipation device for electrical equipment in photovoltaic power plants has the following advantages: I. The present invention utilizes a heat dissipation component, in which two sets of L-shaped heat dissipation fins are spliced together to form an inverted U-shape, which can be tightly attached to the outside of the photovoltaic electrical equipment body, effectively increasing the heat dissipation contact area and improving the heat conduction efficiency. At the same time, in conjunction with the cooling pipe, the shunt head and the exhaust head to form a complete airflow channel, the heat generated by the equipment is quickly removed through cold air circulation, achieving efficient and continuous cooling of the electrical equipment, and ensuring the safety and stability of the equipment operation.
[0016] Second, this invention, through its control components, utilizes dual-axis electric push rods to drive the movement of the fixing bars and heat dissipation fins, thereby achieving automatic bonding, clamping, and separation between the heat dissipation components and the photovoltaic electrical equipment body. This ensures close contact during heat dissipation and facilitates automatic disassembly during equipment maintenance, solving the problem of cumbersome disassembly and assembly of traditional heat dissipation devices. In addition, the transmission frame synchronously drives the flow divider head and exhaust head to move, and works in conjunction with the cooling fan, achieving linkage and auxiliary heat dissipation between components, thus improving the automation level of the device.
[0017] Third, the present invention, through the setting of the docking component, achieves automatic docking and initial positioning of the cooling pipes during the heat dissipation fin bonding process by utilizing the cooperation of the insertion tube and the connecting tube, as well as the locking of the limiting strip and the slot. The limiting strip is further locked by pulling the tightening steel cable with the electric telescopic rod, ensuring the sealing and firmness of the pipe connection, effectively preventing cold air leakage. The establishment and disconnection of the heat dissipation channel can be completed without manual intervention, which significantly improves the ease of operation and reliability of the heat dissipation device.
[0018] Other advantages, objectives and features of the invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination or study, or may be learned from the practice of the invention. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the three-dimensional connection structure of the present invention; Figure 2 This is a partial cross-sectional view of the connection structure of the power distribution cabinet of the present invention; Figure 3 This is a schematic diagram of the connection structure of the heat dissipation component of the present invention; Figure 4 This is a schematic diagram of the connection structure of the photovoltaic electrical equipment body of the present invention; Figure 5 This is a schematic diagram of the connection structure of the control component of the present invention; Figure 6 This is a schematic diagram of the cooling fan connection structure of the present invention; Figure 7 This is a partial cross-sectional view of the exhaust head connection structure of the present invention; Figure 8 This is a schematic diagram of the connecting beam connection structure of the present invention; Figure 9 This is a schematic diagram of the docking component connection structure of the present invention; Figure 10 For the present invention Figure 8 Enlarged connection structure diagram at point A; Figure 11 For the present invention Figure 9 Enlarged schematic diagram of the connection structure at point B.
[0020] In the diagram: 1. Distribution cabinet; 2. Heat dissipation window; 3. Photovoltaic electrical equipment body; 4. Heat dissipation component; 401. Heat dissipation fins; 402. Cooling pipe; 403. Connecting pipe; 404. Slot; 405. Diverter head; 406. Telescopic pipe; 407. Exhaust head; 408. Exhaust window; 5. Control component; 501. Connecting beam; 502. Dual-axis electric push rod; 503. Fixing strip; 504. Stabilizing rod; 505. Transmission frame; 506. Cooling fan; 6. Connecting component; 601. Fixing rod; 602. Positioning ring; 603. Insertion tube; 604. Limiting strip; 605. Sliding ring; 606. Electric telescopic rod; 607. Tightening cable; 608. Fixing ring; 609. Control block. Detailed Implementation
[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0022] like Figure 1-11 As shown, the present invention provides a technical solution: a heat dissipation device for electrical equipment in a photovoltaic power plant, comprising: Distribution cabinet 1 has two hinged doors on the front side. A ventilation window 2 is installed on one side of the distribution cabinet 1, and the photovoltaic electrical equipment body 3 is installed inside the distribution cabinet 1. Heat dissipation component 4 is located inside the distribution cabinet 1, and the inner side of heat dissipation component 4 is attached to the outer side of the photovoltaic electrical equipment body 3 to dissipate the heat generated by the photovoltaic electrical equipment body 3. Control component 5 is fixedly connected to the surface of heat dissipation component 4, and both ends of control component 5 are fixedly connected to the inside of power distribution cabinet 1, for driving heat dissipation component 4 to adhere, clamp and detach from electrical equipment; The docking component 6 is fixedly connected to the middle position inside the control component 5, and the output end of the docking component 6 is movably connected to the middle position of the heat dissipation component 4, so as to splice with the heat dissipation component 4 to form a complete heat dissipation channel.
[0023] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 10 and Figure 11 As shown, the heat dissipation component 4 includes L-shaped heat dissipation fins 401. The heat dissipation fins 401 are arranged in a linear array and are symmetrically arranged in two groups. The tops of the two groups of heat dissipation fins 401 are close to each other and spliced into an inverted U-shape, which is tightly attached to the outside of the photovoltaic electrical equipment body 3. This encasing structure can effectively increase the heat dissipation contact area, thereby quickly absorbing the heat generated by the operation of the equipment. Several cooling pipes 402 are fixedly connected at the interval between the two heat dissipation fins 401. The opposite ends of the cooling pipes 402 are fixedly connected to the connecting pipes 403. A sealing ring is installed at the other end of the connecting pipes 403. An annular groove 404 is opened on the outside of the connecting pipes 403, which provides a basis for the automatic docking and locking of the subsequent pipelines and ensures the sealing and stability of the cooling medium input channel. The internal cavity formed when the two groups of symmetrically arranged heat dissipation fins 401 are spliced is adapted to the photovoltaic electrical equipment body 3. The heat dissipation assembly 4 is also equipped with a complete intake and exhaust structure to achieve heat exchange circulation. The diverter head 405 is trapezoidal and fixedly connected to the end of the cooling pipe 402 away from the connecting pipe 403. It extends through the distribution cabinet 1 through the telescopic pipe 406 to the outside of the cabinet and connect to the cold air delivery equipment. The diverter head 405, the telescopic pipe 406 and the cooling pipe 402 connected to it form a passage to transport the cold airflow and remove the heat absorbed by the heat dissipation fins 401 when it passes through the cooling pipe 402. Another set of cooling pipes 402 is located at the end away from the connecting pipe 403. An exhaust head 407 is fixedly connected, and the other end of the exhaust head 407 passes through the power distribution cabinet 1 and is fixedly connected to an exhaust window 408. The exhaust head 407 and the power distribution cabinet 1 are slidably connected to adapt to the positional changes when the heat dissipation component 4 moves, ensuring the stability of the pipeline connection. The exhaust window 408, the exhaust head 407 and the cooling pipe 402 are interconnected, and the exhaust window 408 is located directly below the heat dissipation window 2, ensuring that the airflow after absorbing heat is smoothly discharged, thereby constructing a complete, closed and efficient heat dissipation circulation channel.
[0024] like Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, the control component 5 includes a connecting beam 501 that is longitudinally fixed to the top of the inside of the distribution cabinet 1. A dual-axis electric push rod 502 is fixedly connected to the middle position of the connecting beam 501. The telescopic ends of the dual-axis electric push rod 502 extend to both ends and are connected to symmetrically arranged fixing bars 503. The bottom of the fixing bars 503 is fixedly connected to the outer bends of two sets of heat dissipation fins 401. Two symmetrically arranged stabilizing rods 504 are also fixedly connected to both sides of the connecting beam 501. The stabilizing rods 504 pass through the fixing bars 503 and slide with them. The telescopic movement of the dual-axis electric push rod 502 drives the fixing bars 503 to slide stably along the stabilizing rods 504, thereby driving the heat dissipation fins 401 at the bottom to open and close. This realizes the automatic bonding, clamping and separation of the heat dissipation component 4 and the photovoltaic electrical equipment body 3, which not only ensures the tightness of the heat dissipation contact and facilitates the subsequent maintenance and repair of the equipment, but also the guiding role of the stabilizing rods 504 effectively prevents the offset or jamming during the movement. The outer side of the stabilizer bar 504 is movably connected to the transmission frame 505 located on the outer side of the heat dissipation fins 401. The bottom of the transmission frame 505 is fixedly connected to the surface of the exhaust head 407 and the diverter head 405 respectively. This linkage design allows the dual-axis electric push rod 502 to drive the heat dissipation fins 401 to move, while simultaneously driving the diverter head 405 and the exhaust head 407 through the transmission frame 505. This ensures precise docking or rapid separation of the cooling pipes from the external air source, improving the automation integration of the device. In addition, a cooling fan 506 is fixedly connected to the inner side of one of the transmission frames 505. The cooling fan 506 is located on the side close to the diverter head 405. The airflow generated by the fan can forcefully exhaust the heat dissipated into the power distribution cabinet 1 through the heat dissipation window 2. Combined with the internal cooling circulation, it achieves dual heat dissipation inside and outside, further improving the overall heat dissipation efficiency.
[0025] like Figure 2 , Figure 8 , Figure 9 , Figure 10 and Figure 11 As shown, the docking assembly 6 includes several linear arrays of fixed rods 601 uniformly fixedly connected to the bottom of the connecting beam 501. The other end of the fixed rod 601 is fixedly connected to a positioning ring 602. The inner side of the positioning ring 602 is fixedly connected to an insertion tube 603. The two ends of the insertion tube 603 extend outward from the positioning ring 602 and are inserted into the interior of the docking tube 403. The two sides of the positioning ring 602 are movably connected by a torque spring and a rotating shaft to a U-shaped limiting strip 604 that is initially tilted outward. When the heat dissipation fins 401 are attached to the photovoltaic electrical equipment body 3 under the drive of the control assembly 5, the docking tube 403 is gradually inserted into the insertion tube 603. Its inner wall squeezes the limiting strip 604, causing it to overcome the resistance of the torque spring and rotate to be parallel to the docking tube 403. Then, one end of the limiting strip 604 is inserted into the slot 404 on the outside of the docking tube 403 to complete the initial limiting. This realizes the automatic docking and positioning of the cooling pipes. The heat dissipation channel can be established without manual intervention, which improves the convenience of operation and docking efficiency. To further ensure the sealing and firmness of the pipeline connection, the docking assembly 6 is also equipped with a sliding ring 605 that is slidably connected to the outside of the fixed rod 601. The telescopic end of the electric telescopic rod 606 is fixedly connected to the surface of the sliding ring 605, and the other end is fixedly connected to the bottom of the connecting beam 501. The tightening steel cable 607 is symmetrically arranged on both sides of the positioning ring 602. One end is fixedly connected to the bottom of the sliding ring 605, and the other end passes through the control block 609 at the bottom of the fixed ring 608 and circles around the outside of the limiting strip 604 in a circular trajectory. After the initial limiting is completed, the electric telescopic rod 606 retracts and pulls the sliding ring 605 upward. The tightening steel cable 607 is tightened by the control block 609, thereby forcibly locking the limiting strip 604. The cooperation of the electric telescopic rod 606 and the tightening steel cable 607 realizes the secondary locking of the docking pipe 403, effectively preventing the pipeline from loosening or leaking during the cold air delivery process, and improving the stability and reliability of the heat dissipation device during operation.
[0026] Working principle: The photovoltaic electrical equipment body 3 is placed inside the distribution cabinet 1. When heat dissipation of the electrical equipment is required, the control component 5 is activated. The dual-axis electric push rod 502 fixed on the top connecting beam 501 inside the distribution cabinet 1 begins to retract, pulling the fixing bars 503 on both sides along the stabilizing rod 504 towards the photovoltaic electrical equipment body 3 in a stable manner, in preparation for subsequent clamping and heat dissipation. As the dual-axis electric push rod 502 retracts, the fixing bar 503 drives the two sets of L-shaped heat dissipation fins 401 connected to its bottom to move closer to each other. Finally, the two sets of heat dissipation fins 401 are spliced into an inverted U-shape and tightly fit against the outside of the photovoltaic electrical equipment body 3 to complete the clamping. At the same time, since the outside of the stabilizing rod 504 is movably connected to the transmission frame 505, the movement of the fixing bar 503 drives the shunt head 405, the cooling pipe 402 and the exhaust head 407 to move inward as a whole through the transmission frame 505, so that the connecting pipe 403 at the end of the cooling pipe 402 moves closer to the insertion pipe 603 of the docking component 6. As the connecting tube 403 is gradually inserted into the insertion tube 603, the inner wall of the connecting tube 403 presses against the outer side of the positioning ring 602, which initially tilts outward and expands into a limiting strip 604. As the connecting tube 403 continues to penetrate deeper, the limiting strip 604 is forced to rotate around the pivot until it is parallel to the connecting tube 403. Its U-shaped end then smoothly engages in the slot 404 on the outer side of the connecting tube 403 to complete the initial limiting. Subsequently, the electric telescopic rod 606 starts to retract, pulling the sliding ring 605 upward along the fixed rod 601. The control block 609 at the bottom of the fixed ring 608 pulls the tightening cable 607 to slide, thereby tightening the tightening cable 607 surrounding the outer side of the limiting strip 604, ensuring that the connecting tube 403 and the insertion tube 603 are tightly locked together, forming a complete and closed heat dissipation channel. After the heat dissipation channel is connected, the external cold air delivery equipment is started. The cold air enters the cooling pipe 402 on one side through the telescopic pipe 406 and the diverter 405 in sequence. When the cold air flows through the cooling pipe 402, it carries away the heat absorbed by the heat dissipation fins 401 from the surface of the photovoltaic electrical equipment body 3. Then the heat-absorbing airflow enters the cooling pipe 402 on the other side and is discharged to the outside of the distribution cabinet 1 through the exhaust head 407 and the exhaust window 408. At the same time, the cooling fan 506 inside the transmission frame 505 near the diverter 405 is started, and the residual heat dissipated inside the distribution cabinet 1 is discharged through the heat dissipation window 2, realizing efficient heat dissipation from both inside and outside. When the photovoltaic electrical equipment body 3 is shut down or needs maintenance, simply reverse the control of the electric telescopic rod 606 to extend, release the tightening steel cable 607, and then the dual-axis electric push rod 502 extends in the opposite direction. At this time, the fixing bar 503 drives the heat dissipation fins 401 to detach from the photovoltaic electrical equipment body 3, and at the same time, the transmission frame 505 drives the connecting pipe 403 to separate from the insertion pipe 603. The limiting bar 604 tilts outward again under the action of the torque spring, disconnecting the heat dissipation channel, thus making it convenient for operators to open the double-opening box door for inspection and maintenance.
[0027] It should be noted that in this document, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, unless otherwise explicitly specified and limited, the terms "fixed," "installed," "connected," and "linked" should be interpreted broadly. For example, "installed" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a mechanical connection or an electrical connection; "linked" can be a direct connection, an indirect connection through an intermediate medium, or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.
[0028] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A heat dissipation device for electrical equipment in a photovoltaic power plant, characterized in that, include: The distribution cabinet (1) has two hinged doors on the front side, and a heat dissipation window (2) is installed on one side of the distribution cabinet (1). The photovoltaic electrical equipment body (3) is installed inside the distribution cabinet (1). Heat dissipation component (4), the heat dissipation component (4) is located inside the power distribution cabinet (1), and the inner side of the heat dissipation component (4) is attached to the outer side of the photovoltaic electrical equipment body (3) to dissipate heat generated by the photovoltaic electrical equipment body (3); The control component (5) is fixedly connected to the surface of the heat dissipation component (4), and both ends of the control component (5) are fixedly connected to the inside of the power distribution cabinet (1) to drive the heat dissipation component (4) to fit, clamp and detach from the electrical equipment. The docking component (6) is fixedly connected to the middle position inside the control component (5), and the output end of the docking component (6) is movably connected to the middle position of the heat dissipation component (4) for splicing with the heat dissipation component (4) to form a complete heat dissipation channel.
2. The heat dissipation device for electrical equipment in a photovoltaic power plant according to claim 1, characterized in that, The heat dissipation component (4) includes: Heat dissipation fins (401) are L-shaped, arranged in a linear array and symmetrically arranged in two groups, with the tops of the two groups of heat dissipation fins (401) close to each other and spliced into an inverted U-shape, and the heat dissipation fins (401) are attached to the outside of the photovoltaic electrical equipment body (3). Cooling tube (402) is provided in several parts, and the cooling tube (402) is fixedly connected to the interval of two heat dissipation fins (401). The opposite ends of the cooling tube (402) are fixedly connected to the connecting tube (403). The outer side of the connecting tube (403) is provided with a slot (404), and the slot (404) is annular.
3. A heat dissipation device for electrical equipment in a photovoltaic power plant according to claim 2, characterized in that, The heat dissipation assembly (4) also includes: The diverter (405) is trapezoidal, and one end of the diverter (405) is fixedly connected to the end of the cooling pipe (402) away from the connecting pipe (403); Telescopic pipe (406), several telescopic pipes (406) are provided, and the other end of the telescopic pipe (406) extends through the power distribution cabinet (1) to its outside, for connecting to the cold air conveying equipment; The internal passage of the diverter (405), the telescopic tube (406) and the cooling tube (402) connected thereto forms a passage for transporting cold air to carry away the heat adsorbed by the heat dissipation fins (401).
4. A heat dissipation device for electrical equipment in a photovoltaic power plant according to claim 3, characterized in that, Another set of cooling pipes (402) has an exhaust head (407) fixedly connected to one end away from the connecting pipe (403). The other end of the exhaust head (407) passes through the power distribution cabinet (1) and is fixedly connected to an exhaust window (408). The exhaust head (407) is slidably connected to the connection of the power distribution cabinet (1). The exhaust window (408), the exhaust head (407) and the cooling pipe (402) are interconnected. The exhaust window (408) is located directly below the heat dissipation window (2).
5. A heat dissipation device for electrical equipment in a photovoltaic power plant according to claim 1, characterized in that, The control component (5) includes: A connecting beam (501) is longitudinally fixed to the top of the inside of the distribution cabinet (1); A dual-axis electric actuator (502) is fixedly connected to the middle position of the connecting beam (501), and the telescopic ends of the dual-axis electric actuator (502) extend to both ends respectively. The fixing strip (503) has two pieces arranged symmetrically, and the opposite sides of the fixing strip (503) are respectively fixedly connected to the telescopic end of the dual-axis electric push rod (502). The bottom of the fixing strip (503) is respectively fixedly connected to the outer bend of the two sets of heat dissipation fins (401).
6. A heat dissipation device for electrical equipment in a photovoltaic power plant according to claim 5, characterized in that, Two symmetrically arranged stabilizing rods (504) are fixedly connected to both sides of the connecting beam (501). The other end of the stabilizing rod (504) passes through the fixing strip (503) and is fixedly connected to the inside of the power distribution cabinet (1). The connection between the stabilizing rod (504) and the fixing strip (503) is slidably connected.
7. A heat dissipation device for electrical equipment in a photovoltaic power plant according to claim 6, characterized in that, The outer side of the stabilizer bar (504) is movably connected to the transmission frame (505), and the transmission frame (505) is located on the outer side of the heat dissipation fins (401). The bottom of the transmission frame (505) is fixedly connected to the surface of the exhaust head (407) and the diverter head (405), respectively. When the dual-axis electric push rod (502) extends and retracts to drive the heat dissipation fins (401) and the cooling tube (402) to dock or separate, the exhaust head (407) and the diverter head (405) are moved synchronously through the transmission frame (505). A cooling fan (506) is fixedly connected to the inner side of one of the transmission frames (505), and the cooling fan (506) is located on the side near the splitter head (405) to exhaust the heat dissipated into the power distribution cabinet (1) through the heat dissipation window (2).
8. A heat dissipation device for electrical equipment in a photovoltaic power plant according to claim 1, characterized in that, The docking component (6) includes: A fixing rod (601) is provided, and several fixing rods (601) are uniformly fixedly connected to the bottom of the connecting beam (501) in a linear array; A positioning ring (602) is fixedly connected to the other end of a fixing rod (601); The insertion tube (603) is fixedly connected to the inner side of the positioning ring (602), and both ends of the insertion tube (603) extend outward from the positioning ring (602) and are respectively inserted into the interior of the connecting tube (403); The limiting strip (604) is U-shaped and arranged in a ring array. It is movably connected to both sides of the positioning ring (602) by a torque spring and a rotating shaft. The initial state of the limiting strip (604) is that it is tilted outward. When the inside of the limiting strip (604) near the positioning ring (602) contacts one end of the connecting tube (403), the limiting strip (604) is parallel to the connecting tube (403), so that the other end of the limiting strip (604) is inserted into the inside of the slot (404) to complete the limiting.
9. A heat dissipation device for electrical equipment in a photovoltaic power plant according to claim 8, characterized in that, The docking component (6) also includes: A sliding ring (605) is slidably connected to the outside of a fixed rod (601); An electric telescopic rod (606) is provided, with its telescopic end fixedly connected to the surface of a sliding ring (605) and its other end fixedly connected to the bottom of a connecting beam (501). Tightening steel cable (607) is symmetrically arranged on both sides of positioning ring (602), and one end of tightening steel cable (607) is fixedly connected to the bottom of sliding ring (605); A fixing ring (608) is located directly below the sliding ring (605) and is fixedly connected to the outside of the fixing rod (601).
10. A heat dissipation device for electrical equipment in a photovoltaic power plant according to claim 9, characterized in that, The bottom of the fixed ring (608) is fixedly connected to two symmetrically arranged control blocks (609). The other end of the tightening cable (607) passes through the control block (609) and is fixedly connected to the bottom of the control block (609) around the outside of the limiting strip (604) in a circular trajectory. It is used to pull the tightening cable (607) from the inside of the control block (609) by the retraction of the electric telescopic rod (606), thereby tightening the tightening cable (607) around the outside of the limiting strip (604).