Oil-immersed transformer capable of automatically adjusting heat dissipation function
By automatically adjusting the heat dissipation system, the telescopic structure of the inner and outer cylinders and heat sinks combined with the oil pump and motor controlled by temperature sensors solves the problem that the heat dissipation efficiency of traditional oil-immersed transformers cannot adapt to each other, and achieves efficient and energy-saving heat dissipation.
Patent Information
- Application Number
- CN202510956280.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-11
- Publication Date
- 2025-09-16
AI Technical Summary
The heat dissipation efficiency of traditional oil-immersed transformers cannot be adaptively adjusted with temperature changes, resulting in energy waste and increased usage costs.
An automatically adjustable heat dissipation system is adopted, including retractable inner and outer cylinders and heat sinks. Temperature changes are used to drive gas expansion, which drives the inner cylinder and heat sinks to retract and retract. The oil pump and motor are controlled by temperature sensors to achieve adaptive heat dissipation. At low temperatures, heat is dissipated only by the heat sink fins, and at high temperatures, it is supplemented by forced air cooling.
It can automatically adjust the heat dissipation efficiency according to temperature changes, save energy, keep the radiator clean, prevent excessive heat dissipation, and improve heat dissipation efficiency and ease of use.
Smart Images
Figure CN120656825A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of transformers, and in particular to an oil-immersed transformer with automatic heat dissipation adjustment function. Background Art
[0002] An oil-immersed transformer is a type of power transformer that uses insulating oil as a cooling and insulating medium. It is widely used in power systems. During operation, the heat generated by the windings and core is carried away by the insulating oil circulation and dissipated into the air through the radiator. It has good heat dissipation performance and the insulating oil can extend the life of internal components.
[0003] Traditional oil-immersed transformers usually use fixed-structure heat dissipation fins or fans to assist in heat dissipation. Their heat dissipation efficiency is relatively fixed and cannot be adaptively adjusted as the transformer temperature changes. At low temperatures, it is easy to cause excessive heat dissipation, which is not conducive to energy conservation and increases usage costs. Therefore, an oil-immersed transformer with automatic heat dissipation function is provided. Summary of the Invention
[0004] In view of this, the present invention provides an oil-immersed transformer with automatic heat dissipation adjustment function, the main technical problem to be solved is: solving the problem that the heat dissipation efficiency cannot be adaptively adjusted as the transformer temperature changes.
[0005] To achieve the above-mentioned object, the present invention adopts the following technical solution: an oil-immersed transformer with automatic heat dissipation function, comprising a mounting seat, an oil-immersed transformer placed on the top of the mounting seat, a protective shell and heat dissipation fins fixedly connected to the front and rear sides of the oil-immersed transformer, a protective cover and a heat dissipation pipe fixedly connected to both sides of the oil-immersed transformer, a radiator fixedly connected to the middle of both sides of the oil-immersed transformer, the heat dissipation fins comprising an outer cylinder fixedly connected to the front and rear sides of the oil-immersed transformer, a receiving cavity provided on the side of the outer cylinder close to the oil-immersed transformer, rolling grooves provided on both sides of the outer cylinder, a first exhaust hole provided on the side of the outer cylinder away from the oil-immersed transformer, a fixed sleeve movably connected to the interior of the outer cylinder, a ball bearing movably connected between the outer cylinder and the fixed sleeve, a first sealing sleeve fixedly connected to the outside of the fixed sleeve, an inner cylinder fixedly connected to the inside of the fixed sleeve, a second exhaust hole provided on the side of the inner cylinder away from the oil-immersed transformer, a heat dissipation fin movably connected to the interior of the inner cylinder, a connecting plate fixedly connected to the side of the heat dissipation fin close to the oil-immersed transformer, and a second sealing sleeve fixedly connected to the outside of the connecting plate.
[0006] By adopting the above technical solution, when the temperature of the oil-immersed transformer rises, the heat will enter the outer cylinder through heat conduction and exchange heat with the outside air, so that the temperature of the oil-immersed transformer becomes lower. When the heat dissipation efficiency of the outer cylinder is lower than the heating efficiency of the oil-immersed transformer, the temperature inside the oil-immersed transformer continues to rise, and the gas in the accommodating cavity can continue to expand, so that the air pressure in the accommodating cavity becomes larger. Since balls are provided between the fixed sleeve and the outer cylinder, the fixed sleeve can move more easily than the connecting plate. Under the action of air pressure, the fixed sleeve can drive the inner cylinder to extend outward from the outer cylinder, so that the heat in the inner cylinder can be introduced into the inner cylinder and dissipated to the outside, thereby accelerating the heat dissipation efficiency. When the temperature inside the oil-immersed transformer further rises, the gas in the accommodating cavity will Further expansion, under the action of air pressure, enables the connecting plate to drive the heat sink to extend out of the inner cylinder, so that the heat in the inner cylinder can be introduced into the heat sink and dissipated to the outside, thereby further improving the heat dissipation efficiency. The heat dissipation efficiency can be automatically adjusted according to the temperature change of the oil-immersed transformer, which is convenient to use. When the temperature drops to a certain level, the volume of the gas in the accommodating cavity shrinks to normal, so that the air pressure in the accommodating cavity becomes lower. Under the action of external air pressure, the inner cylinder can retract into the outer cylinder, and the heat sink can retract into the inner cylinder. During retraction, the dust on the outside of the inner cylinder can be scraped off by the outer cylinder, and the dust on the outside of the heat sink can be scraped off by the inner cylinder, ensuring that the inner cylinder and the heat sink are cleaner, and preventing the heat dissipation efficiency of the inner cylinder and the heat sink from being reduced due to the adhesion of dust.
[0007] As a further description of the above technical solution: the mounting base includes a base body, fixing holes are provided on both sides of the lower part of the base body, a screw is movably connected inside the base body, a slider is threadedly connected to the outer side of the screw, a movable plate is fixedly connected to the top of the slider, and a column is fixedly connected to the side of the movable plate close to the center of the base body.
[0008] By adopting the above technical solution, the screw can be rotated inside the base body by twisting the screw, and the two sliders can drive the movable plate to move to both sides and the middle at the same time through the forward and reverse rotation of the screw, so that the plug can be inserted into and out of the slot, which facilitates the fixation and disassembly of the oil-immersed transformer.
[0009] As a further description of the above technical solution: the protective shell includes a shell fixedly connected to the front and rear sides of the oil-immersed transformer, and a first through hole is provided on the outer side of the shell and the side away from the oil-immersed transformer, and a connection hole is provided on the side of the shell away from the oil-immersed transformer.
[0010] By adopting the above technical solution, the first through hole is used for the passage of air, so that the external air can enter the shell through the first through hole to exchange heat with the outer tube, and the connecting hole is used to fix the outer tube.
[0011] As a further description of the above technical solution: the oil-immersed transformer includes a base placed on the top of the mounting seat, the top of the base is fixedly connected to the transformer body, and slots are provided on both sides of the base.
[0012] By adopting the above technical solution, the slot is used for inserting the column.
[0013] As a further description of the above technical solution: the protective cover includes a cover body fixedly connected to the left and right sides of the oil-immersed transformer, a guide plate is fixedly connected to the side of the inner side of the cover body away from the oil-immersed transformer, and a second through groove is provided on the front and rear sides of the cover body.
[0014] By adopting the above technical solution, the guide plate is used to guide the exhausted air, and the second through groove is used for the passage of air, so that the external air can enter the cover body.
[0015] As a further description of the above technical solution: the radiator includes a fixed column fixedly connected to the middle of both sides of the oil-immersed transformer, the end of the fixed column away from the oil-immersed transformer is fixedly connected to a connecting sleeve, the inner side of the connecting sleeve is fixedly connected to a pillar, the inner side of the pillar is fixedly connected to a motor, and the output end of the motor is fixedly connected to a fan blade.
[0016] By adopting the above technical solution, the motor is started to enable the fan blades to rotate, and the rotation of the fan blades generates wind and blows it toward the heat dissipation pipe.
[0017] As a further description of the above technical solution: the heat dissipation pipeline includes a liquid inlet pipe and a liquid outlet pipe fixedly connected to both sides of the oil-immersed transformer, a heat exchange pipe is fixedly connected between the liquid inlet pipe and the liquid outlet pipe, and an oil pump is installed on the liquid inlet pipe.
[0018] By adopting the above technical solution, a temperature sensor is provided inside the oil-immersed transformer, and the temperature sensor is electrically connected to the oil pump and the motor. When the temperature is low, the oil-immersed transformer relies solely on the heat dissipation fins for heat dissipation. When the temperature is too high, the temperature sensor can control the operation of the oil pump and the motor, so that the insulating oil in the oil-immersed transformer can continuously enter the heat exchange tube through the liquid inlet pipe and flow back into the oil-immersed transformer through the liquid outlet pipe, and is forced to dissipate heat under the wind blown by the radiator until the temperature drops to a certain level.
[0019] As a further description of the above technical solution: the accommodating cavity is filled with nitrogen.
[0020] By adopting the above technical solution, nitrogen is an inert gas and hardly reacts chemically with metal or sealing materials, which can avoid aging or corrosion of components caused by oxidation. In addition, nitrogen will not support combustion in high temperature or high pressure environments, making it safer to use.
[0021] By means of the above technical solution, the oil-immersed transformer with automatic heat dissipation adjustment of the present invention has at least the following beneficial effects:
[0022] 1. Compared with the prior art, this oil-immersed transformer with automatic heat dissipation function is conducive to adaptively adjusting the heat dissipation efficiency by providing heat dissipation fins. When the temperature is low, it only relies on the outer tube to exchange heat with the air entering the protective shell. When the heat dissipation efficiency of the outer tube is lower than the heating efficiency of the oil-immersed transformer, the gas in the accommodating cavity can continuously expand under the action of temperature, so that the inner tube can extend outward from the outer tube, thereby allowing the heat in the inner tube to be introduced into the inner tube and dissipated to the outside, thereby accelerating the heat dissipation efficiency. When the temperature further rises, the gas in the accommodating cavity will further expand. The expansion of the heat sink allows the heat sink to extend outward from the inner cylinder, so that the heat in the inner cylinder can be introduced into the heat sink and dissipated to the outside, further improving the heat dissipation efficiency. The heat dissipation efficiency can be automatically adjusted according to the temperature change of the oil-immersed transformer, which is convenient to use. When the temperature drops to a certain level, the inner cylinder can be retracted into the outer cylinder under the action of the external air pressure, and the heat sink can be retracted into the inner cylinder. During retraction, the dust on the outside of the inner cylinder and the heat sink can be scraped off, ensuring that the inner cylinder and the heat sink are cleaner, so that the heat dissipation efficiency of the inner cylinder and the heat sink can be maintained in a good state.
[0023] 2. Compared with the prior art, this oil-immersed transformer with automatic heat dissipation function is beneficial to energy saving by being provided with a radiator, a heat dissipation pipe and heat dissipation fins. When the heat dissipation efficiency of the heat dissipation fins is lower than the heating efficiency of the oil-immersed transformer and the temperature reaches a certain level, the temperature sensor can control the operation of the oil pump and the motor, so that the insulating oil in the oil-immersed transformer can continuously enter the heat exchange tube through the liquid inlet pipe and flow back into the oil-immersed transformer through the liquid outlet pipe, and is forced to dissipate heat under the wind blown out by the radiator. When the temperature drops to a certain level, the oil pump and the motor are controlled to stop. At this time, heat dissipation is only carried out by relying on the heat dissipation fins, which prevents excessive heat dissipation that is easily caused when the temperature is low, thereby saving energy. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] Figure 1 This is a schematic cross-sectional view of an oil-immersed transformer with automatic heat dissipation adjustment function proposed by the present invention;
[0025] Figure 2 This is a schematic diagram of the overall structure of an oil-immersed transformer with automatic heat dissipation adjustment proposed by the present invention;
[0026] Figure 3 This is a schematic cross-sectional view of a mounting base for an oil-immersed transformer with automatic heat dissipation adjustment proposed by the present invention;
[0027] Figure 4This is a schematic diagram of the overall structure of the protective shell, oil-immersed transformer and protective cover of an oil-immersed transformer with automatic heat dissipation adjustment proposed by the present invention;
[0028] Figure 5 This is a schematic cross-sectional structure diagram of the heat dissipation fins of an oil-immersed transformer with automatic heat dissipation adjustment proposed by the present invention;
[0029] Figure 6 This is a schematic diagram of the overall structure of a radiator for an oil-immersed transformer with automatic heat dissipation adjustment proposed by the present invention;
[0030] Figure 7 This is a schematic diagram of the overall structure of the heat dissipation pipeline of an oil-immersed transformer with automatic heat dissipation adjustment proposed by the present invention.
[0031] Legend:
[0032] 1. Mounting seat; 101. Base; 102. Fixing hole; 103. Screw; 104. Moving plate; 105. Slider; 106. Plug column; 2. Protective shell; 201. Shell; 202. First through hole; 203. Connecting hole; 3. Heat sink fin; 301. Outer cylinder; 302. Accommodating cavity; 303. First sealing sleeve; 304. Ball bearing; 305. Fixing sleeve; 306. Inner cylinder; 307. First exhaust hole; 308. Heat sink; 309. Second exhaust hole; 310. Rolling groove; 311, second sealing sleeve; 312, connecting plate; 4, oil-immersed transformer; 401, transformer body; 402, base; 403, slot; 5, protective cover; 501, cover body; 502, guide plate; 503, second through groove; 6, radiator; 601, fixing column; 602, connecting sleeve; 603, motor; 604, support; 605, fan blade; 7, heat dissipation pipe; 701, liquid inlet pipe; 702, oil pump; 703, heat exchange pipe; 704, liquid outlet pipe. DETAILED DESCRIPTION
[0033] Reference Figure 1-7The present invention provides an oil-immersed transformer with automatic heat dissipation function: comprising a mounting base 1, an oil-immersed transformer 4 is placed on the top of the mounting base 1, a protective shell 2 and a heat dissipation fin 3 are fixedly connected to the front and rear sides of the oil-immersed transformer 4, a protective cover 5 and a heat dissipation pipe 7 are fixedly connected to both sides of the oil-immersed transformer 4, a radiator 6 is fixedly connected to the middle of both sides of the oil-immersed transformer 4, the heat dissipation fin 3 comprises an outer cylinder 301 fixedly connected to the front and rear sides of the oil-immersed transformer 4, a receiving chamber 302 is provided on the side of the outer cylinder 301 close to the oil-immersed transformer 4, the receiving chamber 302 is used to accommodate gas, rolling grooves 310 are provided on both sides of the inner part of the outer cylinder 301, the rolling grooves 310 are used for the rolling of the ball 304, the outer cylinder 3 01 is provided with a first exhaust hole 307 on the side away from the oil-immersed transformer 4, the inner part of the outer cylinder 301 is movably connected with a fixed sleeve 305, and a ball 304 is movably connected between the outer cylinder 301 and the fixed sleeve 305, and the ball 304 can roll between the outer cylinder 301 and the fixed sleeve 305. The outer side of the fixed sleeve 305 is fixedly connected with a first sealing sleeve 303, and the first sealing sleeve 303 is used to ensure better sealing between the fixed sleeve 305 and the outer cylinder 301. The inner side of the fixed sleeve 305 is fixedly connected with an inner cylinder 306, and the inner cylinder 306 is provided with a second exhaust hole 309 on the side away from the oil-immersed transformer 4. The first exhaust hole 307 and the second exhaust hole 309 are used for the inner part of the outer cylinder 301 and the inner cylinder 306 away from the oil-immersed transformer 4. The heat sink 308 is movably connected to the inner cylinder 306, and the heat sink 308 is fixedly connected to the side of the oil-immersed transformer 4 with a connecting plate 312. The outer side of the connecting plate 312 is fixedly connected to the second sealing sleeve 311. The second sealing sleeve 311 is used to ensure that the sealing between the connecting plate 312 and the inner cylinder 306 is better. The inner cylinder 306 can move inside the outer cylinder 301, and the heat sink 308 can move inside the inner cylinder 306. The inner cylinder 306, the outer cylinder 301 and the heat sink 308 are all made of copper and have good thermal conductivity. When the temperature of the oil-immersed transformer 4 rises, the heat will enter the outer cylinder 301 through heat conduction and exchange heat with the outside air, so that the temperature of the oil-immersed transformer 4 is kept low. When the temperature drops, when the heat dissipation efficiency of the outer cylinder 301 is lower than the heating efficiency of the oil-immersed transformer 4, the temperature inside the oil-immersed transformer 4 continues to rise, and the gas in the accommodating chamber 302 can continue to expand, causing the air pressure in the accommodating chamber 302 to increase. Since the balls 304 are provided between the fixing sleeve 305 and the outer cylinder 301, the fixing sleeve 305 can move more easily than the connecting plate 312. Under the action of the air pressure, the fixing sleeve 305 can drive the inner cylinder 306 to extend outward from the outer cylinder 301, so that the heat in the inner cylinder 306 can be introduced into the inner cylinder 306 and dissipated to the outside, thereby accelerating the heat dissipation efficiency. When the temperature inside the oil-immersed transformer 4 further rises, the gas in the accommodating chamber 302 will further expand.Under the action of air pressure, the connecting plate 312 can drive the heat sink 308 to extend outward from the inner cylinder 306, so that the heat in the inner cylinder 306 can be introduced into the heat sink 308 and dissipated to the outside, further improving the heat dissipation efficiency. The heat dissipation efficiency can be automatically adjusted according to the temperature change of the oil-immersed transformer 4, which is convenient to use. When the temperature drops to a certain level, the volume of the gas in the accommodating chamber 302 shrinks to a normal level, causing the air pressure in the accommodating chamber 302 to decrease. Under the action of external air pressure, the inner cylinder 306 can retract into the outer cylinder 301, and the heat sink 308 can retract into the inner cylinder 306. During the retraction, dust on the outside of the inner cylinder 306 can be scraped off by the outer cylinder 301, and dust on the outside of the heat sink 308 can be scraped off by the inner cylinder 306, ensuring that the inner cylinder 306 and the heat sink 308 are cleaner and preventing the heat dissipation efficiency of the inner cylinder 306 and the heat sink 308 from being reduced due to the adhesion of dust.
[0034] Furthermore, the mounting base 1 includes a base body 101, and fixing holes 102 are provided on both sides of the lower part of the base body 101. The base body 101 can be fixed through the fixing holes 102. The base body 101 is movably connected to a screw 103 inside, and two opposite threads are provided on the outside of the screw 103. The outer thread of the screw 103 is connected to a slider 105. The top of the slider 105 is fixedly connected to a movable plate 104, and the side of the movable plate 104 close to the center of the base body 101 is fixedly connected to a column 106. By twisting the screw 103, the screw 103 can be rotated inside the base body 101, and the forward and reverse rotation of the screw 103 can make the two sliders 105 drive the movable plate 104 to move to both sides and the middle at the same time, so that the column 106 can be inserted into and out of the slot 403, which is convenient for fixing and disassembling the oil-immersed transformer 4.
[0035] Furthermore, the protective shell 2 includes a shell 201 fixedly connected to the front and rear sides of the oil-immersed transformer 4. The outer side of the shell 201 and the side away from the oil-immersed transformer 4 are both provided with a first through hole 202. The first through hole 202 is used for the passage of air, so that the outside air can enter the shell 201 through the first through hole 202 to exchange heat with the outer cylinder 301. The side of the shell 201 away from the oil-immersed transformer 4 is provided with a connecting hole 203, and the connecting hole 203 is used to fix the outer cylinder 301.
[0036] Furthermore, the oil-immersed transformer 4 includes a base 402 placed on the top of the mounting base 1 , the top of the base 402 is fixedly connected to the transformer body 401 , and slots 403 are provided on both sides of the base 402 for inserting the plug 106 .
[0037] Furthermore, the protective cover 5 includes a cover body 501 fixedly connected to the left and right sides of the oil-immersed transformer 4, and a guide plate 502 is fixedly connected to the side of the inner side of the cover body 501 away from the oil-immersed transformer 4. The guide plate 502 is used to guide the exhausted air. The front and rear sides of the cover body 501 are both provided with a second through groove 503. The second through groove 503 is used for the passage of air, so that the outside air can enter the cover body 501.
[0038] Furthermore, the radiator 6 includes a fixed column 601 fixedly connected to the middle of both sides of the oil-immersed transformer 4, and the end of the fixed column 601 away from the oil-immersed transformer 4 is fixedly connected to a connecting sleeve 602, the inner side of the connecting sleeve 602 is fixedly connected to a pillar 604, the inner side of the pillar 604 is fixedly connected to a motor 603, and the output end of the motor 603 is fixedly connected to a fan blade 605. Starting the motor 603 enables the fan blade 605 to rotate, and the rotation of the fan blade 605 generates wind and blows it toward the heat dissipation pipe 7.
[0039] Furthermore, the heat dissipation pipe 7 includes a liquid inlet pipe 701 and a liquid outlet pipe 704 fixedly connected to both sides of the oil-immersed transformer 4. A heat exchange pipe 703 is fixedly connected between the liquid inlet pipe 701 and the liquid outlet pipe 704. The heat exchange pipe 703 is made of copper and has good thermal conductivity. An oil pump 702 is installed on the liquid inlet pipe 701. A temperature sensor is provided inside the oil-immersed transformer 4. The temperature sensor is electrically connected to the oil pump 702 and the motor 603. When the temperature is low, the oil-immersed transformer 4 only relies on the heat dissipation fins 3 for heat dissipation. When the temperature is too high, the temperature sensor can control the operation of the oil pump 702 and the motor 603, so that the insulating oil in the oil-immersed transformer 4 can continuously enter the heat exchange tube 703 through the liquid inlet pipe 701 and flow back into the oil-immersed transformer 4 through the liquid outlet pipe 704, and forced to dissipate heat under the wind blown by the radiator 6. When the temperature drops to a certain level, the oil pump 702 and the motor 603 are controlled to stop. At this time, only the heat dissipation fins 3 are used for heat dissipation, which prevents excessive heat dissipation that is easy to cause under low temperature conditions, thereby saving energy.
[0040] Furthermore, the accommodating cavity 302 is filled with nitrogen, which is an inert gas and hardly reacts chemically with metal or sealing materials. It can avoid aging or corrosion of components due to oxidation. In addition, nitrogen will not support combustion in high temperature or high pressure environments, making it safer to use.
[0041] Working principle: When the temperature of the oil-immersed transformer 4 rises during use, the heat will enter the outer cylinder 301 through heat conduction and exchange heat with the outside air, so that the temperature of the oil-immersed transformer 4 becomes lower. When the heat dissipation efficiency of the outer cylinder 301 is lower than the heating efficiency of the oil-immersed transformer 4, the temperature inside the oil-immersed transformer 4 continues to rise, and the gas in the accommodating cavity 302 can continue to expand, so that the air pressure in the accommodating cavity 302 becomes larger. Since a ball 304 is provided between the fixing sleeve 305 and the outer cylinder 301, the fixing sleeve 305 can be moved more easily than the connecting plate 312. Under the action of air pressure, the fixing sleeve 305 can drive the inner cylinder 306 to extend outward from the outer cylinder 301, so that the heat in the inner cylinder 306 can be introduced into the inner cylinder 306 and dissipated to the outside, thereby accelerating the heat dissipation efficiency. When the temperature inside the oil-immersed transformer 4 further increases, the gas in the accommodating cavity 302 will further expand. Under the action of air pressure, the connecting plate 312 can drive the heat sink 308 to extend outward from the inner cylinder 306, so that the heat in the inner cylinder 306 can be introduced into the heat sink 308 and dissipated to the outside, thereby further improving the heat dissipation efficiency. The heat dissipation efficiency is automatically adjusted according to the temperature change of the device 4, which is convenient to use. When the temperature drops to a certain level, the volume of the gas in the accommodating chamber 302 shrinks to a normal level, so that the air pressure in the accommodating chamber 302 becomes low. Under the action of the external air pressure, the inner cylinder 306 can be retracted into the outer cylinder 301, and the heat sink 308 can be retracted into the inner cylinder 306. When retracting, the dust outside the inner cylinder 306 can be scraped off by the outer cylinder 301, and the dust outside the heat sink 308 can be scraped off by the inner cylinder 306, so that the inner cylinder 306 and the heat sink 308 are kept cleaner and dust is prevented. The heat dissipation efficiency of the inner cylinder 306 and the heat sink 308 is reduced due to the adhesion, and when the temperature is too high, the temperature sensor can control the operation of the oil pump 702 and the motor 603, so that the insulating oil in the oil-immersed transformer 4 can continuously enter the heat exchange tube 703 through the liquid inlet pipe 701 and flow back into the oil-immersed transformer 4 through the liquid outlet pipe 704, and is forced to dissipate heat under the wind blown by the radiator 6. When the temperature drops to a certain level, the oil pump 702 and the motor 603 are controlled to stop. At this time, only the heat dissipation fins 3 are used for heat dissipation, which prevents excessive heat dissipation under low temperature conditions and facilitates energy saving.
[0042] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.
Claims
1. An oil-immersed transformer with automatic heat dissipation adjustment function, comprising a mounting base (1), characterized in that: An oil-immersed transformer (4) is placed on the top of the mounting seat (1); a protective shell (2) and a heat dissipation fin (3) are fixedly connected to the front and rear sides of the oil-immersed transformer (4); a protective cover (5) and a heat dissipation pipe (7) are fixedly connected to the two sides of the oil-immersed transformer (4); a radiator (6) is fixedly connected in the middle of the two sides of the oil-immersed transformer (4); the heat dissipation fin (3) comprises an outer cylinder (301) fixedly connected to the front and rear sides of the oil-immersed transformer (4); a receiving cavity (302) is provided on the side of the outer cylinder (301) close to the oil-immersed transformer (4); rolling grooves (310) are provided on both sides of the inner part of the outer cylinder (301); and a first outer cylinder (301) is provided on the side away from the oil-immersed transformer (4). An exhaust hole (307) is provided. A fixed sleeve (305) is movably connected to the interior of the outer cylinder (301). A ball (304) is movably connected between the outer cylinder (301) and the fixed sleeve (305). A first sealing sleeve (303) is fixedly connected to the outside of the fixed sleeve (305). An inner cylinder (306) is fixedly connected to the inside of the fixed sleeve (305). A second exhaust hole (309) is provided on the side of the inner cylinder (306) away from the oil-immersed transformer (4). A heat sink (308) is movably connected to the interior of the inner cylinder (306). A connecting plate (312) is fixedly connected to the side of the heat sink (308) close to the oil-immersed transformer (4). A second sealing sleeve (311) is fixedly connected to the outside of the connecting plate (312).
2. The oil-immersed transformer with automatic heat dissipation adjustment function according to claim 1, characterized in that: The mounting seat (1) includes a seat body (101), both sides of the lower part of the seat body (101) are provided with fixing holes (102), the interior of the seat body (101) is movably connected with a screw rod (103), the outer side of the screw rod (103) is threadedly connected with a slider (105), the top of the slider (105) is fixedly connected with a movable plate (104), and the side of the movable plate (104) close to the center position of the seat body (101) is fixedly connected with a plug post (106).
3. The oil-immersed transformer with automatic heat dissipation adjustment function according to claim 1, characterized in that: The protective shell (2) comprises a shell (201) fixedly connected to the front and rear sides of the oil-immersed transformer (4); the outer side of the shell (201) and the side away from the oil-immersed transformer (4) are both provided with a first through hole (202); and the side of the shell (201) away from the oil-immersed transformer (4) is provided with a connection hole (203).
4. The oil-immersed transformer with automatic heat dissipation adjustment according to claim 1, characterized in that: The oil-immersed transformer (4) comprises a base (402) placed on top of a mounting seat (1); a transformer body (401) is fixedly connected to the top of the base (402); and slots (403) are provided on both sides of the base (402).
5. The oil-immersed transformer with automatic heat dissipation adjustment function according to claim 1, characterized in that: The protective cover (5) comprises a cover body (501) fixedly connected to the left and right sides of the oil-immersed transformer (4); a guide plate (502) is fixedly connected to the inner side of the cover body (501) away from the oil-immersed transformer (4); and second through slots (503) are provided on both the front and rear sides of the cover body (501).
6. The oil-immersed transformer with automatic heat dissipation adjustment according to claim 1, characterized in that: The radiator (6) comprises a fixing column (601) fixedly connected to the middle of two sides of the oil-immersed transformer (4); one end of the fixing column (601) away from the oil-immersed transformer (4) is fixedly connected to a connecting sleeve (602); the inner side of the connecting sleeve (602) is fixedly connected to a support column (604); the inner side of the support column (604) is fixedly connected to a motor (603); and the output end of the motor (603) is fixedly connected to a fan blade (605).
7. The oil-immersed transformer with automatic heat dissipation adjustment function according to claim 1, characterized in that: The heat dissipation pipe (7) comprises a liquid inlet pipe (701) and a liquid outlet pipe (704) fixedly connected to both sides of the oil-immersed transformer (4); a heat exchange pipe (703) is fixedly connected between the liquid inlet pipe (701) and the liquid outlet pipe (704); and an oil pump (702) is installed on the liquid inlet pipe (701).
8. The oil-immersed transformer with automatic heat dissipation adjustment function according to claim 1, characterized in that: The accommodating cavity (302) is filled with nitrogen.