Oil-immersed power transformer

Abstract

The invention relates to the technical field of oil-immersed power transformers, in particular to an oil-immersed power transformer which comprises an oil-immersed power transformer body, a transformer oil conservator is fixedly mounted on the oil-immersed power transformer body, and a fixing frame is fixedly connected to the transformer oil conservator. The sunshade curtains are fixedly connected to the two sides of one end of the fixing frame, the transmission mechanism is fixedly connected to the fixing frame, the curtain pulling frame is arranged on the fixing frame in a sliding fit mode, the oil conservator cleaning mechanism is arranged at the bottom end of the middle of the curtain pulling frame in a sliding fit mode, and the air guide mechanisms are fixedly connected to the fixing frame. The curtain pulling frame is driven by the transmission mechanism to move, so that the sunshade curtain can be unfolded to block above the transformer oil conservator, and sunshade protection is performed on the transformer oil conservator. Direct irradiation of the sun to the oil conservator can be effectively shielded, sunlight radiation heat transfer is reduced, the temperature of the oil conservator is prevented from being too high, and then the temperature of oil in the transformer is effectively reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of oil-immersed power transformers, in particular to an oil-immersed power transformer. Background Art

[0002] Oil-immersed power transformers use oil as both an insulating and cooling medium. These transformers are widely used in various power systems, such as power generation, substations, and distribution. They utilize oil immersion and oil circulation for cooling, while the high insulating properties of oil effectively prevent current leakage and electrical short circuits.

[0003] The document with the prior art publication number CN119419040B provides an oil-immersed power transformer. Through the coordinated use of a connecting flange, a supporting flange, a glass tube, a protective tube, a fixed sleeve and a movable seat. When the movable seat is in the first state, the hygroscopic silica gel balls in the first hygroscopic chamber absorb the moisture in the air. When the water absorption capacity of the hygroscopic silica gel balls in the first hygroscopic chamber is reduced or even fails, the movable seat is adjusted to the second state, and the air enters the second hygroscopic chamber. The hygroscopic silica gel balls in the second hygroscopic chamber absorb moisture from the air after passing through the first hygroscopic chamber to ensure that the air is in a dry state. This method of coordinating the two hygroscopic chambers can more effectively ensure the dryness of the air inside the transformer in the actual power system operating environment and reduce the risk of electrical failure caused by the entry of humid air.

[0004] The oil pillow structure of existing oil-immersed power transformers plays a crucial role in operation, primarily mitigating oil expansion caused by temperature fluctuations. Existing technologies make it difficult to provide sun protection for the pillow when used outdoors. If the pillow is exposed to sunlight for extended periods, especially in hot weather, the oil inside can become overheated. High temperatures accelerate the oxidation and aging of the transformer oil, degrading its insulation properties and potentially causing the transformer to overheat or fail, shortening its service life.

[0005] In summary, the prior art lacks technology for sunshade protection of the oil pillow of an oil-immersed power transformer. Summary of the Invention

[0006] The purpose of the present invention is to solve the shortcomings of the background technology and to propose an oil-immersed power transformer.

[0007] To achieve the above objectives, the technical solution adopted by the present invention is: an oil-immersed power transformer, comprising an oil-immersed power transformer main body, a transformer oil pillow is fixedly installed on the oil-immersed power transformer main body, a fixing frame is fixedly connected to the transformer oil pillow, a sunshade is fixedly connected to both sides of one end of the fixing frame, a transmission mechanism is fixedly connected to the fixing frame, a curtain frame is slidably provided on the fixing frame, an oil pillow cleaning mechanism is slidably provided at the bottom middle end of the curtain frame, and a plurality of air guide mechanisms are fixedly connected to the fixing frame.

[0008] Preferably, both sides of the upper end of the fixing frame are in a T-shaped structure with sliding grooves, and the upper top surface of the fixing frame is provided with a plurality of air guide holes.

[0009] Preferably, a plurality of reinforcing rods are fixedly connected to the sunshade curtain, a slider is fixedly connected to one end of the reinforcing rod, the slider is arranged in a T-shaped structure, the outer wall of the slider is slidingly matched with the inner wall of the slide groove, and the other end of the sunshade curtain is fixedly connected to the curtain frame.

[0010] Preferably, the transmission mechanism includes a motor seat, which is fixedly connected to the fixed frame, a motor is fixedly connected to the motor seat, a driving wheel is fixedly connected to the output end of the motor, a screw is fixedly connected to the driving wheel, and the screw is rotatably connected to the inner wall of the fixed frame.

[0011] Preferably, a driven wheel is provided on the lower side of the driving wheel for meshing transmission, a bending rod is fixedly connected to the driven wheel, one end of the bending rod is rotatably connected to the motor seat, and a movable frame is slidingly provided at the other end of the bending rod, one end of the movable frame is fixedly connected to a transmission rod, and both ends of the transmission rod are slidingly provided with a fixed frame.

[0012] Preferably, the bottom end of the curtain frame is threadedly connected to the screw rod, a transmission rack is fixedly connected to the curtain frame, and a limiting groove is provided at the bottom end of the middle part of the curtain frame.

[0013] Preferably, the oil pillow cleaning mechanism includes an arc-shaped wiping frame, the inner circle of the arc-shaped wiping frame is arranged in sliding contact with the outer wall of the transformer oil pillow, the inner circle of the arc-shaped wiping frame is fixedly connected with a brush layer, the outer circle of the arc-shaped wiping frame is fixedly connected with an arc-shaped sliding rod, the arc-shaped sliding rod is slidingly matched with the inner wall of the limiting groove, a connecting rod is rotatably connected to the arc-shaped wiping frame, the other end of the connecting rod is rotatably connected with a moving block, and the moving block is slidingly matched with the outer wall of the transmission rod.

[0014] Preferably, the air guide mechanism includes a fixed seat, which is fixedly connected to the fixed frame, and a flip block is rotatably connected to the fixed seat, and a worm gear is fixedly connected to one end of the flip block, and a worm is rotatably connected to the side of the fixed seat close to the worm gear, and the worm gear is meshed with the worm gear for transmission, and a transmission wheel is fixedly connected to the bottom end of the worm, and the transmission wheel is meshed with the transmission rack for transmission.

[0015] Preferably, an air duct is rotatably connected to the flip block, and a wind collecting hood is fixedly connected to the other end of the air duct, and the wind collecting hood is arranged in a conical structure. An electric push rod is fixedly connected to the flip block, and an adjustment rack is fixedly connected to the output end of the electric push rod, and an adjustment wheel is fixedly connected to the air duct, and the adjustment wheel is meshed with the adjustment rack for transmission.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. By installing a sunshade, a transmission mechanism drives the curtain frame to move during hot weather, allowing the curtain to unfold and position above the transformer oil pillow to provide sun protection. This effectively blocks direct sunlight from the oil pillow, reducing radiant heat transfer and preventing overheating, thereby effectively lowering the temperature of the oil inside the transformer. This lower temperature slows oil aging and improves the transformer's heat dissipation, ensuring the transformer operates within the normal temperature range, extending equipment life, reducing the risk of failure, and improving operational efficiency.

[0017] 2. The oil pillow cleaning mechanism also ensures stable transformer operation. This mechanism, while the transmission mechanism deploys the sunshade, simultaneously drives the arc-shaped cleaning frame to move and rotate back and forth, cleaning the outer wall of the transformer's oil pillow. This reduces the accumulation of dust and dirt, preventing poor heat dissipation caused by contaminants. A clean oil pillow helps dissipate heat more efficiently, ensuring the transformer maintains the appropriate operating temperature range and preventing overheating, thereby improving the transformer's operating efficiency and stability.

[0018] 3. By setting up an air guide mechanism, the wind collecting hood is driven to stand up when the curtain frame moves, and the wind collecting hood can automatically rotate and adjust according to the wind direction, guiding the external wind and concentrating it to blow towards the oil pillow, avoiding the negative impact of sunshade on the heat dissipation of the oil pillow. With the help of natural wind power to assist in heat dissipation, the dependence on the artificial refrigeration system and electricity consumption are reduced, the energy utilization efficiency of the system is improved, and the purpose of energy saving and heat dissipation is achieved by effectively utilizing natural wind power. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of an oil-immersed power transformer of the present invention; Figure 2 This is a partial structural diagram of an oil-immersed power transformer according to the present invention; Figure 3 This is a structural schematic diagram of a fixing frame for an oil-immersed power transformer according to the present invention; Figure 4 This is a structural schematic diagram of a sunshade curtain for an oil-immersed power transformer according to the present invention; Figure 5 This is a schematic structural diagram of a transmission mechanism of an oil-immersed power transformer of the present invention; Figure 6 This is a structural schematic diagram of a curtain frame for an oil-immersed power transformer according to the present invention; Figure 7 This is a structural schematic diagram of an oil conservator cleaning mechanism for an oil-immersed power transformer according to the present invention; Figure 8 The figure is a structural schematic diagram of an air guide mechanism of an oil-immersed power transformer according to the present invention.

[0020] The following are marked in the figure: 1. Oil-immersed power transformer body; 2. Transformer oil pillow; 3. Fixing frame; 4. Sunshade; 5. Transmission mechanism; 6. Curtain frame; 7. Oil pillow cleaning mechanism; 8. Air guide mechanism; 301. Slide; 401. Reinforcement rod; 402. Slider; 501. Motor seat; 502. Motor; 503. Driving wheel; 504. Screw rod; 505. Driven wheel; 506. Bending rod; 507. Movable frame; 508, transmission rod; 601, transmission rack; 602, limiting slot; 701, arc-shaped cleaning rack; 702, arc-shaped sliding rod; 703, connecting rod; 704, moving block; 801, fixed seat; 802, flip block; 803, worm gear; 804, worm; 805, transmission wheel; 806, air guide duct; 807, wind condenser; 808, electric push rod; 809, adjustment rack; 810, adjustment wheel. DETAILED DESCRIPTION

[0021] The following description is intended to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are merely examples, and those skilled in the art may conceive of other obvious variations.

[0022] like Figures 1-8 An oil-immersed power transformer shown includes an oil-immersed power transformer main body 1, a transformer oil pillow 2 is fixedly installed on the oil-immersed power transformer main body 1, a fixing frame 3 is fixedly connected to the transformer oil pillow 2, a sunshade 4 is fixedly connected on both sides of one end of the fixing frame 3, a transmission mechanism 5 is fixedly connected to the fixing frame 3, a curtain frame 6 is slidably provided on the fixing frame 3, an oil pillow cleaning mechanism 7 is slidably provided at the bottom middle end of the curtain frame 6, and a plurality of air guide mechanisms 8 are fixedly connected to the fixing frame 3.

[0023] like Figure 3 As shown, both sides of the upper end of the fixing frame 3 are T-shaped and have sliding grooves 301, and the upper top surface of the fixing frame 3 is provided with multiple air guide holes.

[0024] like Figure 4 As shown, the sunshade 4 is fixedly attached to a plurality of reinforcing rods 401. A slider 402 is fixedly attached to one end of each reinforcing rod 401. The slider 402 is arranged in a T-shaped configuration, with the outer wall of the slider 402 slidingly engaging the inner wall of the slide groove 301. The other end of the sunshade 4 is fixedly attached to the curtain frame 6. The sunshade 4 is made of UV-resistant coated fabric, which extends the service life of the sunshade 4 and ensures long-term stable use. This material also effectively reduces the impact of ultraviolet radiation on transformer equipment, protecting it from damage. The reinforcing rods 401 on the sunshade 4 significantly enhance its wind resistance and structural strength. The reinforcing rods 401 effectively support the weight of the sunshade 4, preventing it from bending, deforming, or breaking during strong winds or prolonged use. Especially in strong winds, the reinforcing rods 401 help keep the sunshade 4 flat and stable, preventing it from being pulled and damaged by excessive wind.

[0025] By installing a sunshade 4, the transmission mechanism 5 drives the curtain frame 6 to move during hot weather, allowing the sunshade 4 to be deployed and positioned above the transformer oil pillow 2 to provide sun protection. This effectively blocks direct sunlight from the transformer oil pillow 2, reducing radiant heat transfer and preventing the transformer oil pillow 2 from overheating, thereby effectively lowering the temperature of the oil inside the transformer oil pillow 2. This lowered temperature slows the aging of the oil and improves the heat dissipation of the transformer, ensuring that the transformer operates within the normal temperature range, extending the equipment's service life, reducing the risk of failure, and improving operational efficiency.

[0026] like Figure 5 As shown, the transmission mechanism 5 includes a motor base 501, which is fixedly connected to the fixed frame 3. A motor 502 is fixedly connected to the motor base 501, and a driving wheel 503 is fixedly connected to the output end of the motor 502. A screw rod 504 is fixedly connected to the driving wheel 503, and the screw rod 504 is rotatably connected to the inner wall of the fixed frame 3.

[0027] A driven wheel 505 is provided on the lower side of the driving wheel 503 in meshing transmission engagement. A bent rod 506 is fixedly connected to the driven wheel 505. One end of the bent rod 506 is rotatably connected to the motor base 501, and the other end of the bent rod 506 is slidably engaged with a movable frame 507. One end of the movable frame 507 is fixedly connected to a transmission rod 508, and both ends of the transmission rod 508 are slidably engaged with the fixed frame 3. The motor 502 drives the driving wheel 503 to rotate, causing the driving wheel 503 to drive the driven wheel 505 to rotate. The driven wheel 505 drives the connected bent rod 506 to rotate, causing the bent rod 506 to drive the transmission rod 508 connected to the movable frame 507 to reciprocate up and down.

[0028] like Figure 6 As shown, the bottom end of the curtain frame 6 is threadedly connected to the screw rod 504, and a transmission rack 601 is fixedly connected to the curtain frame 6. A limiting groove 602 is provided at the bottom end of the middle part of the curtain frame 6. When the curtain frame 6 moves, the transmission rack 601 connected thereto drives the transmission wheel 805 to rotate.

[0029] like Figure 7 As shown, the oil pillow cleaning mechanism 7 includes an arc-shaped cleaning frame 701, the inner circumference of which is in sliding contact with the outer wall of the transformer oil pillow 2. A brush layer is fixedly connected to the inner circumference of the arc-shaped cleaning frame 701, and an arc-shaped sliding rod 702 is fixedly connected to the outer circumference of the arc-shaped cleaning frame 701. The arc-shaped sliding rod 702 is slidingly engaged with the inner wall of the limiting groove 602. A connecting rod 703 is rotatably connected to the arc-shaped cleaning frame 701, and a moving block 704 is rotatably connected to the other end of the connecting rod 703. The moving block 704 is slidingly engaged with the outer wall of the transmission rod 508. The transmission rod 508 drives the moving block 704 to move up and down, and at this time, the moving block 704 drives the arc-shaped cleaning frame 701 to rotate back and forth through the connecting rod 703.

[0030] like Figure 8 As shown, the air guide mechanism 8 includes a fixed seat 801, which is fixedly connected to the fixed frame 3, and a flip block 802 is rotatably connected to the fixed seat 801. One end of the flip block 802 is fixedly connected to a worm gear 803, and a worm 804 is rotatably connected to the side of the fixed seat 801 close to the worm gear 803. The worm 804 is meshingly transmitted with the worm gear 803, and a transmission wheel 805 is fixedly connected to the bottom end of the worm 804. The transmission wheel 805 is meshingly transmitted with the transmission rack 601.

[0031] An air duct 806 is rotatably connected to the flip block 802. A conical wind hood 807 is fixedly connected to the other end of the air duct 806. An electric push rod 808 is fixedly connected to the flip block 802. An adjustment rack 809 is fixedly connected to the output end of the push rod 808. An adjustment wheel 810 is fixedly connected to the air duct 806 and meshes with the adjustment rack 809. An ultrasonic wind direction sensor is housed within the wind hood 807. This sensor transmits ultrasonic signals and measures the time difference in signal propagation to calculate wind speed and direction. When the curtain rack 6 moves, the transmission rack 601 connected thereto will drive the transmission wheel 805 to rotate, causing the transmission wheel 805 to drive the connected worm 804 to rotate. At this time, the worm 804 will drive the flip block 802 connected to the worm wheel 803 to rotate, causing the wind hood 807 to stand up. Then, the electric push rod 808 will drive the connected adjustment rack 809 to move, causing the adjustment rack 809 to drive the air duct 806 connected to the adjustment wheel 810 to rotate, causing the air duct 806 to drive the opening direction of the wind hood 807 to align with the wind direction.

[0032] Working principle: When the transformer oil pillow 2 needs to be shaded in hot weather, the motor 502 is first used to drive the connected screw rod 504 to rotate, so that the curtain frame 6 moves, and the sunshade 4 is pulled open to block the transformer oil pillow 2. At this time, the reinforcing rod 401 on the sunshade 4 will support the sunshade 4; When the curtain frame 6 moves, the oil pillow cleaning mechanism 7 is driven to move. At this time, the motor 502 drives the driving wheel 503 to rotate, so that the driving wheel 503 drives the driven wheel 505 to rotate. The driven wheel 505 drives the connected bending rod 506 to rotate, so that the bending rod 506 drives the transmission rod 508 connected to the movable frame 507 to move up and down. At this time, the transmission rod 508 will drive the moving block 704 to move up and down, and the moving block 704 will drive the arc-shaped cleaning frame 701 to reciprocate through the connecting rod 703 to clean the outer wall of the transformer oil pillow 2; When the curtain rack 6 moves, the transmission rack 601 connected thereto will drive the transmission wheel 805 to rotate, so that the transmission wheel 805 will drive the connected worm 804 to rotate. At this time, the worm 804 will drive the flip block 802 connected to the worm gear 803 to rotate, so that the wind hood 807 will stand up. The ultrasonic wind direction sensor in the wind hood 807 will analyze the direction of the wind. Then, the electric push rod 808 will be used to drive the connected adjustment rack 809 to move, so that the adjustment rack 809 drives the air duct 806 connected to the adjustment wheel 810 to rotate, so that the air duct 806 drives the opening direction of the wind hood 807 to align with the wind direction. Then, the natural wind is gathered through the air duct 806 and blown onto the transformer oil pillow 2 to dissipate heat.

[0033] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0034] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions merely illustrate the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the invention as claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. An oil-immersed power transformer, comprising an oil-immersed power transformer body (1), characterized in that: A transformer oil pillow (2) is fixedly mounted on the oil-immersed power transformer body (1), a fixing frame (3) is fixedly connected to the transformer oil pillow (2), a sunshade (4) is fixedly connected to both sides of one end of the fixing frame (3), a transmission mechanism (5) is fixedly connected to the fixing frame (3), a curtain frame (6) is slidably provided on the fixing frame (3), an oil pillow cleaning mechanism (7) is slidably provided at the bottom end of the middle portion of the curtain frame (6), and a plurality of air guide mechanisms (8) are fixedly connected to the fixing frame (3).

2. The oil-immersed power transformer according to claim 1, characterized in that: Both sides of the upper end of the fixing frame (3) are in a T-shaped structure with sliding grooves (301) provided thereon, and a plurality of air guide holes are provided on the upper top surface of the fixing frame (3).

3. The oil-immersed power transformer according to claim 1, characterized in that: A plurality of reinforcing rods (401) are fixedly connected to the sunshade curtain (4), one end of the reinforcing rod (401) is fixedly connected to a slider (402), the slider (402) is arranged in a T-shaped structure, the outer wall of the slider (402) is arranged to slide in cooperation with the inner wall of the slide groove (301), and the other end of the sunshade curtain (4) is fixedly connected to the curtain frame (6).

4. The oil-immersed power transformer according to claim 1, characterized in that: The transmission mechanism (5) comprises a motor base (501), the motor base (501) is fixedly connected to the fixing frame (3), a motor (502) is fixedly connected to the motor base (501), a driving wheel (503) is fixedly connected to the output end of the motor (502), a screw rod (504) is fixedly connected to the driving wheel (503), and the screw rod (504) is rotatably connected to the inner wall of the fixing frame (3).

5. The oil-immersed power transformer according to claim 4, characterized in that: A driven wheel (505) is provided on the lower side of the driving wheel (503) for meshing transmission. A bending rod (506) is fixedly connected to the driven wheel (505). One end of the bending rod (506) is rotatably connected to the motor seat (501). The other end of the bending rod (506) is provided with a movable frame (507) in sliding cooperation. One end of the movable frame (507) is fixedly connected to a transmission rod (508). Both ends of the transmission rod (508) are provided in sliding cooperation with the fixed frame (3).

6. The oil-immersed power transformer according to claim 1, characterized in that: The bottom end of the curtain frame (6) is threadedly connected to the screw rod (504), a transmission rack (601) is fixedly connected to the curtain frame (6), and a limiting groove (602) is provided at the bottom end of the middle portion of the curtain frame (6).

7. The oil-immersed power transformer according to claim 6, characterized in that: The oil pillow cleaning mechanism (7) comprises an arc-shaped cleaning frame (701), wherein the inner circle of the arc-shaped cleaning frame (701) is arranged in sliding contact with the outer wall of the transformer oil pillow (2), the inner circle of the arc-shaped cleaning frame (701) is fixedly connected with a brush layer, the outer circle of the arc-shaped cleaning frame (701) is fixedly connected with an arc-shaped sliding rod (702), the arc-shaped sliding rod (702) is arranged in sliding cooperation with the inner wall of the limiting groove (602), the arc-shaped cleaning frame (701) is rotatably connected with a connecting rod (703), the other end of the connecting rod (703) is rotatably connected with a moving block (704), and the moving block (704) is arranged in sliding cooperation with the outer wall of the transmission rod (508).

8. The oil-immersed power transformer according to claim 6, characterized in that: The air guide mechanism (8) comprises a fixed seat (801), the fixed seat (801) being fixedly connected to the fixed frame (3), a flip block (802) being rotatably connected to the fixed seat (801), a worm wheel (803) being fixedly connected to one end of the flip block (802), a worm (804) being rotatably connected to a side of the fixed seat (801) close to the worm wheel (803), the worm (804) being meshed with the worm wheel (803) for transmission, a transmission wheel (805) being fixedly connected to the bottom end of the worm (804), and the transmission wheel (805) being meshed with the transmission rack (601) for transmission.

9. The oil-immersed power transformer according to claim 8, characterized in that: An air duct (806) is rotatably connected to the flip block (802), and an air collecting hood (807) is fixedly connected to the other end of the air duct (806), and the air collecting hood (807) is arranged in a conical structure. An electric push rod (808) is fixedly connected to the flip block (802), and an adjustment rack (809) is fixedly connected to the output end of the electric push rod (808). An adjustment wheel (810) is fixedly connected to the air duct (806), and the adjustment wheel (810) is meshed with the adjustment rack (809) for transmission.

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