Outdoor transformer with easy maintenance

Abstract

The application belongs to the technical field of transformer equipment, and particularly relates to an outdoor transformer convenient to maintain. The outdoor transformer comprises a transformer body, the front and back surfaces of the transformer body are both provided with first and second heat dissipation mechanisms, the first heat dissipation mechanism comprises a first heat dissipation bottom plate, a plurality of first heat dissipation fins are uniformly and fixedly installed on the first heat dissipation bottom plate, the second heat dissipation mechanism comprises a C-shaped frame, the first and second heat dissipation fins can both play a heat dissipation effect and effectively prevent dust and impurities from adhering, the transformer body can be flexibly and quickly switched in different states of normal use and overload use, the heat dissipation effect in different states is ensured, and the adhesion of dust and impurities is reduced, the outdoor transformer can be flexibly and quickly switched in different states, the adhesion of dust and impurities can be reduced in different states, and the outdoor transformer is simple to operate.

Description

Technical Field

[0001] This invention belongs to the field of transformer equipment technology, and specifically relates to an outdoor transformer that is easy to maintain. Background Technology

[0002] Outdoor transformers are power transformers specifically designed for outdoor environments. They are primarily used to convert high-voltage electrical energy into low-voltage electrical energy to supply various electrical equipment. They are typically waterproof, dustproof, and weather-resistant to withstand harsh weather and environmental impacts, ensuring safe and stable operation.

[0003] Outdoor transformers generate heat during operation, requiring heat sinks on the outer wall of the transformer to conduct heat and dissipate it for cooling. However, due to their outdoor operation, the heat sinks are easily contaminated by dust and impurities after being heated, resulting in a film covering the surface and greatly reducing the heat dissipation effect. Regular cleaning and maintenance are required.

[0004] Chinese patent application number 202610013723.8 discloses an integrated dust removal and cooling outdoor transformer, relating to the field of oil-immersed transformer technology. It includes a transformer body and a radiator installed on the side of the transformer body. Filter units are provided on both sides of the radiator. An air-guiding unit is provided between two filter units. The air-guiding unit can achieve back-blowing cleaning of the filter units through rotation. Each filter unit includes: two mounting frames located on the side of the radiator; the two mounting frames are hinged together; the mounting frame closer to the radiator is connected to the transformer body via a guiding mechanism; and two filter screens, fixedly connected to the two mounting frames respectively. The two filter screens are closely fitted together, with staggered mesh arrangements. The staggered mesh arrangements and close fit of the two filter screens in this patent reduce the mesh size and improve dust interception efficiency.

[0005] Outdoor transformer heat sinks inevitably become contaminated due to contact with the outside environment, and sealing them off affects heat dissipation. At the same time, when too many impurities adhere to the heat sinks, regular cleaning and maintenance are required, which is troublesome for workers due to the high altitude of the equipment. Even some automatic cleaning equipment still has the problem of impurity adhesion after long-term use, and replacement is quite troublesome. Summary of the Invention

[0006] To address the shortcomings of existing technologies, this invention provides an easy-to-maintain outdoor transformer. The invention utilizes the structural cooperation of a first and second heat dissipation mechanism, ensuring that both the first and second heat sinks effectively dissipate heat while simultaneously preventing dust and impurities from adhering to them. The sliding switching between the first and second heat dissipation mechanisms allows for flexible and rapid switching between normal and overload operation of the transformer, ensuring effective heat dissipation in all conditions while minimizing dust and impurity buildup. Furthermore, the cooperation of a scraping mechanism with the first and second heat dissipation mechanisms enables flexible and rapid switching between different operating conditions while minimizing dust and impurity buildup in all states, all with simple operation. Finally, the cooperation between a locking mechanism and the scraping mechanism allows for quick disassembly while locking the scraping mechanism, facilitating replacement and maintenance without the need for cumbersome cleaning and replacement of the heat sinks.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: An easy-to-maintain outdoor transformer includes a transformer body, on both the front and back of which a first heat dissipation mechanism and a second heat dissipation mechanism are installed. The first heat dissipation mechanism includes a first heat dissipation base plate on which a plurality of first heat dissipation fins are uniformly fixed. The second heat dissipation mechanism includes a C-shaped frame on which a plurality of second heat dissipation fins are uniformly installed. The C-shaped frame covers the outside of the first heat dissipation base plate. The second heat dissipation fins are spaced apart from the first heat dissipation fins and abut against the first heat dissipation base plate.

[0008] Furthermore, a first L-shaped groove is provided on the housing of the transformer body, and a first L-shaped slider is fixedly provided at both ends of the first heat dissipation base plate, and the first L-shaped slider is slidably connected to the first L-shaped groove; a second L-shaped groove is provided on the housing of the transformer body, and a second L-shaped slider is fixedly provided at both ends of the C-shaped frame, and the second L-shaped slider is slidably connected to the second L-shaped groove.

[0009] Furthermore, a mounting plate is symmetrically fixed to the top of the transformer body, and a driving mechanism is provided on the mounting plate. The driving mechanism includes a stepper motor fixed to the mounting plate, and a bidirectional screw is fixed to the output end of the stepper motor. A bent plate is fixed to the top of the first heat sink at both ends of the first heat sink base plate, and a guide plate is fixed to the top of both ends of the C-shaped frame. A first threaded hole and a second threaded hole are respectively opened on the bent plate and the guide plate near the bidirectional screw. The two opposite threaded ends of the bidirectional screw are threadedly connected to the first threaded hole and the second threaded hole, respectively.

[0010] Furthermore, a guide rod is fixedly provided on the bent plate opposite to the bidirectional screw, and a guide hole is provided on the guide plate below the guide rod, wherein the guide rod is slidably connected to the guide hole.

[0011] Furthermore, the second heat sink includes a second heat sink body, one end of which is fixedly provided with a limiting plate, and both ends of the limiting plate are fixedly provided with a plurality of first return springs; a sliding groove is evenly provided through the middle plate of the C-shaped frame, and the sliding groove is slidably connected to the second heat sink body; one end of the first return spring is fixedly connected to the middle plate of the C-shaped frame; the end of the first heat sink base plate located between two adjacent first heat sinks is an inclined surface.

[0012] Furthermore, a scraping mechanism is installed at the upper and lower ends of both the first and second heat sink bodies. The scraping mechanism includes a mounting box, and receiving grooves are provided on both sides of the mounting box. Scraping rollers are fixedly connected inside the receiving grooves by multiple second return springs.

[0013] Furthermore, when the first heat dissipation mechanism and the second heat dissipation mechanism approach each other, the scraping rollers scrape the side walls of the first heat dissipation fin and the body of the second heat dissipation fin; when the C-shaped frame is installed outside the first heat dissipation base plate, the scraping rollers on the same side abut against each other and block the upper and lower ends of the first heat dissipation mechanism and the second heat dissipation mechanism.

[0014] Furthermore, both the upper and lower ends of the first and second heat sink bodies are provided with mounting grooves, and a T-shaped groove is provided on one side of the mounting groove, which communicates with the inner wall of the mounting groove; a locking mechanism is installed in the T-shaped groove, the locking mechanism includes a T-shaped block, which is slidably connected to the T-shaped groove; the horizontal end of the T-shaped block is fixedly connected to the T-shaped groove by a third return spring; an insertion hole is provided on the top of the mounting box, and the vertical end of the T-shaped block passes through the T-shaped groove and is inserted into the insertion hole.

[0015] A method for maintaining an outdoor transformer that is easy to maintain, as described above, includes the following steps: S1. When the transformer body is under normal load or not in use, the first heat dissipation mechanism and the second heat dissipation mechanism are brought closer to each other by the stepper motor, so that the C-shaped frame is placed on the outside of the first heat dissipation base plate; at this time, the second heat dissipation fin body abuts against the first heat dissipation base plate; so that all heat dissipation fins can play a heat dissipation role while the heat dissipation fins are inside the C-shaped frame, effectively preventing dust and impurities from adhering. S2. When the transformer body is overloaded, the first and second heat dissipation mechanisms are moved away from each other by the stepper motor. The second heat sink body is then pressed against the outer wall of the transformer body. This ensures the heat dissipation effect of all heat sinks while allowing full contact with the outside environment for heat transfer. The stepper motor is also periodically controlled to rotate in both directions. While maintaining heat dissipation, the scraping roller reciprocates to scrape the surface of the first and second heat sink bodies to prevent dust and impurities from adhering. S3. When the transformer body is not in use, a C-shaped frame is installed outside the first heat dissipation base plate by controlling the stepper motor, so that the scraping rollers on the same side abut against each other and cover the upper and lower ends of the first heat dissipation mechanism and the second heat dissipation mechanism to prevent dust. S4. When there are too many impurities adhering to the scraping roller, the mounting box of the scraping mechanism can be quickly replaced by pressing the T-block, so that there is no need to clean and replace the heat sink.

[0016] Compared with the prior art, the present invention has the following beneficial effects: (1) The present invention, through the structural cooperation of the first heat dissipation mechanism and the second heat dissipation mechanism, enables both the first heat dissipation fin and the second heat dissipation fin to exert heat dissipation effect while effectively blocking the adhesion of dust and impurities. Specifically, the first heat dissipation base plate is in direct contact with the outer wall of the transformer body, while the first heat dissipation fin is fixedly connected to the first heat dissipation base plate, and the second heat dissipation fin abuts against the first heat dissipation base plate. Therefore, both the first heat dissipation fin and the second heat dissipation fin exert heat dissipation effect. At the same time, since the C-shaped frame is set outside the first heat dissipation base plate, the first heat dissipation base plate and the C-shaped frame form a cover structure, which can also effectively block the adhesion of dust and impurities and prevent the heat dissipation fin from being contaminated and the heat dissipation effect from deteriorating.

[0017] (2) The present invention enables flexible and rapid switching between the first and second heat dissipation mechanisms through sliding switching, allowing the transformer body to switch flexibly and quickly between different states of normal use and overload use, thereby ensuring heat dissipation effect in various states and reducing the adhesion of dust and impurities. Specifically, when the transformer body is under normal load or not in use, the stepper motor controls the bidirectional screw to rotate, causing the first and second heat dissipation mechanisms to move closer to each other until the C-shaped frame covers the outside of the first heat dissipation base plate. At this time, the second heat dissipation fin body abuts against the first heat dissipation base plate. This allows all heat dissipation fins to exert their heat dissipation effect while all heat dissipation fins are inside the C-shaped frame, effectively blocking the adhesion of dust and impurities. Since the heat dissipation demand is small at this time, the covering of the first and second heat dissipation fin bodies will not affect the heat dissipation process. When the transformer body is under overload use, the stepper motor controls the first and second heat dissipation mechanisms to move away from each other, causing the second heat dissipation fin body to abut against the outer wall of the transformer body. This ensures the heat dissipation effect of all heat dissipation fins and removes the covering effect, allowing all heat dissipation fins to fully contact the outside for heat transfer. This rapid switching ensures the heat dissipation effect under load use.

[0018] (3) The present invention, through the cooperation of the scraping mechanism with the first heat dissipation mechanism and the second heat dissipation mechanism, can not only achieve flexible and rapid switching in different states, but also reduce the adhesion of dust and impurities in different states, and is simple to operate; specifically, when the transformer body is overloaded, since the cover effect needs to be removed at this time, so that all heat sinks can fully contact the outside world for heat transfer, the heat sinks in this state are easily contaminated by dust and impurities from the outside world; at this time, the stepper motor is periodically controlled to rotate bidirectionally, so that the first heat dissipation mechanism and the second heat dissipation mechanism reciprocate periodically. In this way, since the first heat sink and the second heat sink body are always connected to the outer wall of the transformer body, the heat dissipation is not affected, and while maintaining heat dissipation, the scraping roller reciprocates synchronously to scrape the surface of the first heat sink and the second heat sink body to prevent dust and impurities from adhering; thus, flexible and rapid switching in different states can be achieved, and the adhesion of dust and impurities can be reduced in different states; and the operation is simple, only the stepper motor needs to be controlled to run.

[0019] (4) The present invention, through the cooperation of the locking mechanism and the scraping mechanism, can achieve quick disassembly while locking the scraping mechanism, thereby facilitating replacement and maintenance without the need for tedious cleaning and replacement of heat sinks; specifically, the T-shaped block of each locking mechanism is inserted into the T-shaped groove, so when the first heat dissipation mechanism and the second heat dissipation mechanism move vertically, when the scraping roller is squeezed into the receiving groove, the stability of the scraping mechanism will not be affected because the T-shaped block is laterally limited by the T-shaped groove; when the scraping mechanism has too many impurities adhering to the scraping roller, the T-shaped block of the locking mechanism is disengaged from the T-shaped groove by pressing the T-shaped block, so that the scraping mechanism can be moved laterally for quick replacement, thereby facilitating replacement and maintenance without the need for tedious cleaning and replacement of heat sinks. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of an outdoor transformer that is easy to maintain according to the present invention; Figure 2 This is a schematic diagram of the distributed structure of an outdoor transformer that is easy to maintain according to the present invention; Figure 3 This is a schematic diagram of the first heat dissipation mechanism of an outdoor transformer that is easy to maintain according to the present invention; Figure 4 This is a schematic diagram of the distributed structure of a scraping mechanism for an outdoor transformer that is easy to maintain, according to the present invention. Figure 1 ; Figure 5 This is a schematic diagram of the distributed structure of a scraping mechanism for an outdoor transformer that is easy to maintain, according to the present invention. Figure 2 ; Figure 6This is a schematic diagram of the distributed structure of the second heat dissipation mechanism of an outdoor transformer that is easy to maintain according to the present invention; Figure 7 This is a schematic diagram of a maintenance method for an outdoor transformer that is easy to maintain, according to the present invention.

[0021] The attached figures are labeled as follows: 100 - Transformer body; 110 - Second L-shaped slide rail; 120 - First L-shaped slide rail; 130 - Mounting plate; 200 - Drive mechanism; 210 - Stepper motor; 220 - Bidirectional screw; 230 - Guide rod; 240 - Bending plate; 241 - First threaded hole; 300 - First heat dissipation mechanism; 310 - First heat dissipation base plate; 311 - First L-shaped slider; 312 - Inclined surface; 320 - First heat sink; 321 - Mounting groove; 322 - T-slot; 400 - Mounting box. 401-Insertion hole, 402-Receiving groove, 410-Scraping roller, 420-Second return spring, 500-Second heat dissipation mechanism, 510-C-shaped frame, 511-Second L-shaped slider, 520-Guide plate, 521-Second threaded hole, 522-Guide hole, 530-Slide groove, 600-Second heat sink, 610-Second heat sink body, 620-Limiting plate, 630-First return spring, 800-Locking mechanism, 810-T-shaped block, 820-Third return spring. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to embodiments. Of course, the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0023] Although the steps in this invention are arranged by reference numerals, this is not intended to limit the order of the steps. Unless the order of the steps is explicitly stated or the execution of a step requires other steps as a basis, the relative order of the steps can be adjusted. It is understood that the term "and / or" as used herein refers to and covers any and all possible combinations of one or more of the associated listed items.

[0024] Example like Figures 1-7As shown, an easy-to-maintain outdoor transformer includes a transformer body 100. A first heat dissipation mechanism 300 and a second heat dissipation mechanism 500 are installed on both the front and back of the transformer body 100. The first heat dissipation mechanism 300 includes a first heat dissipation base plate 310, on which a plurality of first heat dissipation fins 320 are uniformly fixedly installed. The second heat dissipation mechanism 500 includes a C-shaped frame 510, on which a plurality of second heat dissipation fins 600 are uniformly installed. The C-shaped frame 510 covers the outside of the first heat dissipation base plate 310. The second heat dissipation fins 600 are spaced apart from the first heat dissipation fins 320 and abut against the first heat dissipation base plate 310.

[0025] This invention, through the structural cooperation of the first heat dissipation mechanism 300 and the second heat dissipation mechanism 500, enables both the first heat dissipation fin 320 and the second heat dissipation fin 600 to effectively prevent the adhesion of dust and impurities while simultaneously achieving heat dissipation. Specifically, the first heat dissipation base plate 310 is in direct contact with the outer wall of the transformer body 100, while the first heat dissipation fin 320 is fixedly connected to the first heat dissipation base plate 310, and the second heat dissipation fin 600 abuts against the first heat dissipation base plate 310. Therefore, both the first heat dissipation fin 320 and the second heat dissipation fin 600 achieve heat dissipation. At the same time, since the C-shaped frame 510 covers the outside of the first heat dissipation base plate 310, the first heat dissipation base plate 310 and the C-shaped frame 510 form a cover structure, which can also effectively prevent the adhesion of dust and impurities, thus avoiding contamination of the heat dissipation fins and a decrease in heat dissipation performance.

[0026] Furthermore, a first L-shaped groove 120 is provided on the housing of the transformer body 100, and a first L-shaped slider 311 is fixedly provided at both ends of the first heat dissipation base plate 310. The first L-shaped slider 311 is slidably connected to the first L-shaped groove 120. A second L-shaped groove 110 is provided on the housing of the transformer body 100, and a second L-shaped slider 511 is fixedly provided at both ends of the C-shaped frame 510. The second L-shaped slider 511 is slidably connected to the second L-shaped groove 110.

[0027] The present invention enables the transformer body 100 to switch flexibly and quickly between normal use and overload use by sliding the first heat dissipation mechanism 300 and the second heat dissipation mechanism 500, thereby ensuring the heat dissipation effect in various states and reducing the adhesion of dust and impurities; a detailed description will follow.

[0028] Furthermore, the transformer body 100 is symmetrically fixed with a mounting plate 130 on its top. The mounting plate 130 is equipped with a drive mechanism 200. The drive mechanism 200 includes a stepper motor 210 fixed on the mounting plate 130. The output end of the stepper motor 210 is fixed with a bidirectional screw 220. The top ends of the first heat sinks 320 located at both ends of the first heat sink base plate 310 are fixed with bent plates 240. The top ends of the C-shaped frame 510 are fixed with guide plates 520. The bent plates 240 and guide plates 520 near the bidirectional screw 220 are respectively provided with a first threaded hole 241 and a second threaded hole 521. The two opposite threaded ends of the bidirectional screw 220 are threadedly connected to the first threaded hole 241 and the second threaded hole 521, respectively.

[0029] Furthermore, a guide rod 230 is fixedly provided on the bending plate 240 opposite to the bidirectional screw 220, and a guide hole 522 is provided on the guide plate 520 located below the guide rod 230. The guide rod 230 is slidably connected to the guide hole 522.

[0030] It is worth noting that the stepper motor 210 of the present invention is powered by an external power source and can be equipped with a waterproof cover or other protective structure, which is a conventional feature and will not be described in detail here.

[0031] Furthermore, the second heat sink 600 includes a second heat sink body 610, one end of which is fixedly provided with a limiting plate 620, and both ends of the limiting plate 620 are fixedly provided with a plurality of first return springs 630; a sliding groove 530 is evenly provided through the middle plate of the C-shaped frame 510, and the sliding groove 530 is slidably connected to the second heat sink body 610; one end of the first return spring 630 is fixedly connected to the middle plate of the C-shaped frame 510; the end of the first heat dissipation base plate 310 located between two adjacent first heat sinks 320 is an inclined surface 312.

[0032] When the transformer body 100 is under normal load or not in use, the stepper motor 210 controls the bidirectional screw 220 to rotate, causing the first heat dissipation mechanism 300 and the second heat dissipation mechanism 500 to move closer together until the C-shaped frame 510 covers the outside of the first heat dissipation base plate 310. At this time, the second heat dissipation fin body 610 abuts against the first heat dissipation base plate 310. This ensures that all heat dissipation fins can exert their heat dissipation effect while being inside the C-shaped frame 510, effectively preventing dust and impurities from adhering. Since the heat dissipation demand is relatively small at this time, the covering of the first heat dissipation fin 320 and the second heat dissipation fin body 610 does not affect the heat dissipation process. However, when the transformer body 100 is under overload, the stepper motor 210 controls the first heat dissipation mechanism 300 and the second heat dissipation mechanism 500 to move away from each other, causing the second heat dissipation fin body 610 to abut against the outer wall of the transformer body 100. This ensures the heat dissipation effect of all heat dissipation fins while removing the covering effect, allowing all heat dissipation fins to fully contact the outside environment for heat transfer. This rapid switching ensures the heat dissipation effect under load conditions.

[0033] Furthermore, a scraping mechanism is installed at the upper and lower ends of the first heat sink 320 and the second heat sink body 610. The scraping mechanism includes a mounting box 400, and receiving grooves 402 are provided on both sides of the mounting box 400. The scraping rollers 410 are fixedly connected inside the receiving grooves 402 by a plurality of second return springs 420.

[0034] This invention, through the cooperation of a scraping mechanism with the first heat dissipation mechanism 300 and the second heat dissipation mechanism 500, not only achieves flexible and rapid switching between different states, but also reduces dust and impurity adhesion in all states, and is simple to operate. Specifically, when the transformer body 100 is overloaded, the enclosure needs to be removed to allow all heat sinks to fully contact the outside environment for heat transfer, which makes the heat sinks susceptible to dust and impurity adhesion. At this time, the stepper motor 210 is periodically controlled to rotate bidirectionally, causing the first heat dissipation mechanism 300 and the second heat dissipation mechanism 500 to reciprocate periodically. Since the first heat sink 320 and the second heat sink body 610 are always connected to the outer wall of the transformer body 100, heat dissipation is not affected. While maintaining heat dissipation, the scraping roller 410 reciprocates synchronously to scrape the surfaces of the first heat sink 320 and the second heat sink body 610 to prevent dust and impurities from adhering. This achieves flexible and rapid switching between different states, reduces dust and impurity adhesion in all states, and is simple to operate, requiring only the operation of the stepper motor 210.

[0035] It is worth noting that the present invention does not limit the material of the scraping roller 410. For example, it can be a material such as rubber that easily adheres to and scrapes away dust and impurities, which will not be described in detail here.

[0036] Furthermore, when the first heat dissipation mechanism 300 and the second heat dissipation mechanism 500 approach each other, the scraping roller 410 scrapes the sidewalls of the first heat dissipation fin 320 and the second heat dissipation fin body 610; when the C-shaped frame 510 covers the outside of the first heat dissipation base plate 310, the scraping rollers 410 on the same side abut against each other and block the upper and lower ends of the first heat dissipation mechanism 300 and the second heat dissipation mechanism 500.

[0037] It is worth noting that when the scraping mechanisms of the first heat sink 320 and the second heat sink body 610 approach each other, the scraping rollers 410 on both sides squeeze and retract into the receiving groove 402, thereby avoiding the problem of being stuck and unable to pass through. At the same time, when the scraping rollers 410 extend, they can scrape the surface of the heat sink.

[0038] Furthermore, the first heat sink 320 and the second heat sink body 610 are both provided with mounting grooves 321 at their upper and lower ends. A T-shaped groove 322 is provided on one side of the mounting groove 321, and the T-shaped groove 322 communicates with the inner wall of the mounting groove 321. A locking mechanism 800 is installed in the T-shaped groove 322. The locking mechanism 800 includes a T-shaped block 810, which is slidably connected to the T-shaped groove 322. The horizontal end of the T-shaped block 810 is fixedly connected to the T-shaped groove 322 by a third return spring 820. The top of the mounting box 400 is provided with a plug-in hole 401, and the vertical end of the T-shaped block 810 passes through the T-shaped groove 322 and is plugged into the plug-in hole 401.

[0039] This invention, through the cooperation of the locking mechanism 800 and the scraping mechanism, enables rapid disassembly while locking the scraping mechanism, thus facilitating replacement and maintenance without the need for tedious cleaning and replacement of heat sinks. Specifically, each locking mechanism 800 has a T-shaped block 810 that is inserted into a T-shaped groove 322. Thus, when the first heat dissipation mechanism 300 and the second heat dissipation mechanism 500 move vertically, and the scraping roller 410 is squeezed into the receiving groove 402, the stability of the scraping mechanism is not affected because the T-shaped blocks 810 are all laterally limited by the T-shaped grooves 322. When there are too many impurities adhering to the scraping roller 410, pressing the T-shaped blocks 810 releases the T-shaped blocks 810 of the locking mechanism 800 from the T-shaped grooves 322, allowing the scraping mechanism to move laterally for rapid replacement, thus facilitating replacement and maintenance without the need for tedious cleaning and replacement of heat sinks.

[0040] A method for maintaining an outdoor transformer that is easy to maintain, as described above, includes the following steps: S1. When the transformer body 100 is under normal load or not in use, the first heat dissipation mechanism 300 and the second heat dissipation mechanism 500 are brought closer together by the stepper motor 210, so that the C-shaped frame 510 covers the outside of the first heat dissipation base plate 310; at this time, the second heat dissipation fin body 610 abuts against the first heat dissipation base plate 310; so that all heat dissipation fins can play a heat dissipation role while the heat dissipation fins are all inside the C-shaped frame 510, effectively preventing dust and impurities from adhering. S2. When the transformer body 100 is overloaded, the stepper motor 210 controls the first heat dissipation mechanism 300 and the second heat dissipation mechanism 500 to move away from each other; so that the second heat sink body 610 abuts against the outer wall of the transformer body 100. At this time, the heat dissipation effect of all heat sinks can be guaranteed, and heat can be transferred to the outside environment. The stepper motor 210 is periodically controlled to rotate in both directions. While maintaining heat dissipation, the scraping roller 410 reciprocates to scrape the surface of the first heat sink 320 and the second heat sink body 610 to prevent dust and impurities from adhering. S3. When the transformer body 100 is not in use, the C-shaped frame 510 is controlled by the stepper motor 210 to cover the outside of the first heat dissipation base plate 310, so that the scraping rollers 410 on the same side abut against each other and cover the upper and lower ends of the first heat dissipation mechanism 300 and the second heat dissipation mechanism 500 to prevent dust. S4. When there are too many impurities adhering to the scraping roller 410, the mounting box 400 of the scraping mechanism can be quickly replaced by pressing the T-block 810, so that the heat sink does not need to be cleaned and replaced.

[0041] The above description is only a preferred embodiment of the present invention. It should be noted that those skilled in the art can make several improvements and modifications without departing from the inventive concept of the present invention, and these all fall within the protection scope of the present invention.

Claims

1. An easy-to-maintain outdoor transformer, characterized in that, The system includes a transformer body (100), on which a first heat dissipation mechanism (300) and a second heat dissipation mechanism (500) are installed on both sides. The first heat dissipation mechanism (300) includes a first heat dissipation base plate (310), on which a plurality of first heat dissipation fins (320) are uniformly fixed. The second heat dissipation mechanism (500) includes a C-shaped frame (510), on which a plurality of second heat dissipation fins (600) are uniformly installed. The C-shaped frame (510) covers the outside of the first heat dissipation base plate (310). The second heat dissipation fins (600) are spaced apart from the first heat dissipation fins (320) and abut against the first heat dissipation base plate (310).

2. The easy-to-maintain outdoor transformer according to claim 1, characterized in that, The transformer body (100) has a first L-shaped groove (120) on its shell, and the first heat dissipation base plate (310) has a first L-shaped slider (311) fixed at both ends, and the first L-shaped slider (311) is slidably connected to the first L-shaped groove (120); the transformer body (100) has a second L-shaped groove (110) on its shell, and the C-shaped frame (510) has a second L-shaped slider (511) fixed at both ends, and the second L-shaped slider (511) is slidably connected to the second L-shaped groove (110).

3. The easy-to-maintain outdoor transformer according to claim 2, characterized in that, The transformer body (100) is symmetrically fixed with mounting plates (130) on the top. The mounting plate (130) is provided with a drive mechanism (200). The drive mechanism (200) includes a stepper motor (210) fixed on the mounting plate (130). The output end of the stepper motor (210) is fixed with a bidirectional screw (220). The top ends of the first heat sinks (320) located at both ends of the first heat sink base plate (310) are all fixed with bent plates (240). The top ends of the C-shaped frame (510) are all fixed with guide plates (520). The bent plate (240) and the guide plate (520) near the bidirectional screw (220) are respectively provided with a first threaded hole (241) and a second threaded hole (521). The two opposite threaded ends of the bidirectional screw (220) are threadedly connected to the first threaded hole (241) and the second threaded hole (521).

4. The easy-to-maintain outdoor transformer according to claim 3, characterized in that, A guide rod (230) is fixedly provided on the bent plate (240) opposite to the bidirectional screw (220), and a guide hole (522) is provided on the guide plate (520) below the guide rod (230). The guide rod (230) is slidably connected to the guide hole (522).

5. The easy-to-maintain outdoor transformer according to claim 3, characterized in that, The second heat sink (600) includes a second heat sink body (610), a limiting plate (620) is fixedly provided at one end of the second heat sink body (610), and a plurality of first return springs (630) are fixedly provided at both ends of the limiting plate (620); a sliding groove (530) is evenly provided through the middle plate of the C-shaped frame (510), and the sliding groove (530) is slidably connected to the second heat sink body (610); one end of the first return spring (630) is fixedly connected to the middle plate of the C-shaped frame (510); the end of the first heat sink base plate (310) located between two adjacent first heat sinks (320) is an inclined surface (312).

6. The easy-to-maintain outdoor transformer according to claim 5, characterized in that, The first heat sink (320) and the second heat sink body (610) are both equipped with scraping mechanisms at their upper and lower ends. The scraping mechanism includes a mounting box (400). The mounting box (400) has receiving grooves (402) on both sides. The inside of the receiving groove (402) is fixedly connected to the scraping roller (410) by a plurality of second return springs (420).

7. The easy-to-maintain outdoor transformer according to claim 6, characterized in that, When the first heat dissipation mechanism (300) and the second heat dissipation mechanism (500) approach each other, the scraping roller (410) scrapes the side walls of the first heat dissipation fin (320) and the second heat dissipation fin body (610); when the C-shaped frame (510) covers the outside of the first heat dissipation base plate (310), the scraping rollers (410) on the same side abut against each other and block the upper and lower ends of the first heat dissipation mechanism (300) and the second heat dissipation mechanism (500).

8. The easy-to-maintain outdoor transformer according to claim 6, characterized in that, The first heat sink (320) and the second heat sink body (610) are both provided with mounting grooves (321) at their upper and lower ends. A T-shaped groove (322) is provided on one side of the mounting groove (321), and the T-shaped groove (322) is connected to the inner wall of the mounting groove (321). A locking mechanism (800) is installed in the T-shaped groove (322). The locking mechanism (800) includes a T-shaped block (810), which is slidably connected to the T-shaped groove (322). The horizontal end of the T-shaped block (810) is fixedly connected to the T-shaped groove (322) by a third return spring (820). The top of the mounting box (400) is provided with a plug hole (401). The vertical end of the T-shaped block (810) passes through the T-shaped groove (322) and is plugged into the plug hole (401).

9. A method for maintaining an outdoor transformer that is easy to maintain as described in any one of claims 1 to 8, characterized in that, Includes the following steps: S1. When the transformer body (100) is under normal load or not in use, the first heat dissipation mechanism (300) and the second heat dissipation mechanism (500) are controlled to move closer to each other by the stepper motor (210), so that the C-shaped frame (510) covers the outside of the first heat dissipation base plate (310); at this time, the second heat dissipation fin body (610) abuts against the first heat dissipation base plate (310); so that all heat dissipation fins can play a heat dissipation role while the heat dissipation fins are all inside the C-shaped frame (510), effectively blocking the adhesion of dust and impurities; S2. When the transformer body (100) is overloaded, the first heat dissipation mechanism (300) and the second heat dissipation mechanism (500) are moved away from each other by the stepper motor (210); the second heat sink body (610) is pressed against the outer wall of the transformer body (100). At this time, the heat dissipation effect of all heat sinks can be guaranteed, and heat transfer can be fully carried out in contact with the outside. The stepper motor (210) is periodically controlled to rotate in both directions. While maintaining heat dissipation, the scraping roller (410) is moved back and forth to scrape the surface of the first heat sink (320) and the second heat sink body (610) to prevent dust and impurities from adhering. S3. When the transformer body (100) is not in use, the C-shaped frame (510) is controlled by the stepper motor (210) to cover the outside of the first heat dissipation base plate (310), so that the scraping rollers (410) on the same side abut against each other and block the upper and lower ends of the first heat dissipation mechanism (300) and the second heat dissipation mechanism (500) from dust. S4. When there are too many impurities adhering to the scraping roller (410), the mounting box (400) of the scraping mechanism can be quickly replaced by pressing the T-block (810), so that the heat sink does not need to be cleaned and replaced.

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