Oil-immersed transformer with heat dissipation structure

Abstract

The invention belongs to the technical field of oil-immersed transformers, and particularly relates to an oil-immersed transformer with a heat dissipation structure, which comprises a transformer shell, an oil cooling mechanism is arranged on the outer wall of the transformer shell, a mounting seat is fixedly connected to the inner wall of the transformer shell, and a heat absorption sheet is fixedly connected to the bottom of the mounting seat. And a heat dissipation opening is formed in the bottom of the transformer shell, a filter screen is fixedly connected into the heat dissipation opening, and a heat removal cleaning device and an auxiliary cleaning device are arranged below the mounting base. According to the oil-immersed transformer with the heat dissipation structure, by using the heat removal cleaning device, when the temperature in the transformer shell is high and the temperature detected by a temperature sensor reaches the specified temperature of a controller, a double-shaft motor is started, an output shaft of the double-shaft motor rotates to drive a rotating shaft to rotate, and then a heat removal fan is driven to rotate; and heat of the heat absorption sheets is discharged outwards through the heat dissipation openings, so that the heat dissipation effect of the oil-immersed transformer is improved.

Description

Technical Field

[0001] The invention relates to the technical field of oil-immersed transformers, in particular to an oil-immersed transformer with a heat dissipation structure. Background Art

[0002] The shell of the oil-immersed transformer contains insulating oil, which is used to absorb the heat generated by the transformer when it is working, and then transfer the heat to the heat sink of the shell through heat transfer for heat dissipation. Among them, the oil pillow of the oil-immersed transformer adjusts the amount of oil in the transformer tank to ensure that the transformer is full of oil at any temperature and operating conditions. When the transformer oil temperature rises, the oil volume expands and the excess oil will flow into the oil pillow; conversely, when the oil temperature drops, the oil volume shrinks and the oil in the oil pillow will flow back to the tank, thereby automatically adjusting the oil level.

[0003] At present, in the prior art, although the temperature in the transformer can be lowered by means of an oil pillow, in a hot weather environment, when the transformer is operated at high power, the cooling method of the oil pillow may not be able to meet the heat dissipation of the transformer, thereby affecting the operation of the transformer. In view of this, the present invention proposes an oil-immersed transformer with a heat dissipation structure. Summary of the invention

[0004] The main purpose of the present invention is to provide an oil-immersed transformer with a heat dissipation structure, which can solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned object, the oil-immersed transformer with a heat dissipation structure proposed in the present invention comprises a transformer housing, an oil cooling mechanism is arranged on the outer wall of the transformer housing, a mounting seat is fixedly connected to the inner wall of the transformer housing, a heat absorbing sheet is fixedly connected to the bottom of the mounting seat, a heat dissipation port is opened at the bottom of the transformer housing, a filter is fixedly connected to the heat dissipation port, a heat exhaust cleaning device and an auxiliary cleaning device are arranged below the mounting seat, and the heat exhaust cleaning device comprises: A fixing frame, the fixing frame is fixedly connected to the bottom inner wall of the transformer housing, and a dual-axis motor is fixedly connected to the upper side of the fixing frame; A rotating shaft, the rotating shaft is fixedly connected to the output shaft of the dual-shaft motor, and a heat exhaust fan is fixedly connected to the top of the rotating shaft; An elliptical wheel, the elliptical wheel is penetrated by the rotating shaft and is fixedly connected to the rotating shaft, and a moving component is arranged below the fixed frame; And a cleaning component, which is arranged below the moving component. The output shaft of the dual-axis motor rotates, which drives the rotating shaft to rotate, and then drives the heat exhaust fan to rotate, and discharges the heat of the heat absorbing plate to the outside through the heat dissipation port.

[0006] Preferably, the moving component includes a cylinder, which is fixedly connected to the output shaft of the dual-axis motor, a slide plate is slidably connected to the inner wall of the cylinder, an expansion airbag is provided on the slide plate, the slide plate is elastically connected to the inner wall of the cylinder via a support spring, a limiting block is fixedly connected to the inner wall of the cylinder, a connecting rod is fixedly connected to the lower side of the slide plate, the connecting rod is sleeved by the cylinder, the expansion airbag is heated and expanded, the expansion airbag squeezes the slide plate to descend, the slide plate compresses the support spring to drive the connecting rod to descend, and the use of the limit block can limit the slide plate when it descends, so that the slide plate can compress the support spring at most and move to the limit block.

[0007] Preferably, the cleaning assembly includes a transverse plate, which is fixedly connected to the connecting rod, an inner groove is provided on the outer wall of the transverse plate, a slip ring is slidably connected in the inner groove, the inner groove and the slip ring are elastically connected by a connecting spring, and a protrusion is fixedly connected to the side of the slip ring away from the connecting spring. When the inflated airbag absorbs a large amount of heat, the expansion squeezes the slide plate to drive the connecting rod to descend, so that the transverse plate contacts the filter screen, and when the output shaft of the dual-axis motor rotates, the cylinder is driven to rotate, the slide plate is driven to rotate, and then the connecting rod is driven to rotate, so that the protrusion on the transverse plate follows the rotation of the transverse plate, and the protrusion passes through the mesh of the filter screen. In this process, when the protrusion moves out of the mesh of the filter screen, the protrusion compresses the slip ring, and the slip ring squeezes the connecting spring to shrink into the transverse plate. When the protrusion is aligned with the mesh of the filter screen, under the resetting action of the connecting spring, the slip ring is reset, driving the protrusion to extend out of the transverse plate, thereby achieving the effect of dredging the filter screen and preventing the filter screen from being blocked.

[0008] Preferably, the protrusion passes through the outer wall of the transverse plate and is slidably connected to the outer wall of the transverse plate.

[0009] Preferably, the auxiliary cleaning device includes a support rod, which is fixedly connected to the bottom inner wall of the transformer housing, and the top of the support rod is fixedly connected to a limiting ring, the limiting ring is penetrated by a cross bar and is slidably connected to the cross bar, and the end of the cross bar close to the rotating shaft is fixedly connected to a square plate, and the cross bar penetrates a circular ring and is slidably connected to the circular ring, and the circular ring and the limiting ring are elastically connected by a reset spring, and the rotating shaft is driven to rotate by the output shaft of the dual-axis motor, thereby driving the elliptical wheel to rotate and squeeze the square plate, and under the action of the reset spring, the square plate is tightly attached to the elliptical wheel, so that the cross bar slides back and forth in the limiting ring.

[0010] Preferably, an end of the cross bar away from the square plate is hinged with a hinged rod, and an end of the hinged rod away from the cross bar is hinged with a vertical rod, the vertical rod penetrates the sealing sleeve and is slidably connected to the sealing sleeve, the sealing sleeve is fixedly connected to the bottom inner wall of the transformer housing, and a round rod is fixedly connected to the bottom outer wall of the vertical rod, and during the reciprocating sliding of the cross bar, the hinged rod is driven to move, thereby driving the vertical rod to reciprocate in the vertical direction.

[0011] Preferably, the round rod is slidably connected in the straight slot of the swing rod, the swing rod is hinged to the positioning rod, the positioning rod is fixedly connected to the bottom outer wall of the transformer housing, the end of the swing rod away from the vertical rod is fixedly connected with an arc-shaped spring piece, the top of the arc-shaped spring piece is fixedly connected with a knocking block, and the vertical rod performs reciprocating motion in the vertical direction to make the round rod slide in the straight slot of the swing rod, and the swing rod swings to drive the arc-shaped spring piece and the knocking block to move, so that the knocking block knocks and vibrates the filter screen to shake off the dust attached to the filter screen, thereby preventing the dust from adhering to the filter screen and affecting the ventilation effect of the filter screen.

[0012] Preferably, the oil cooling mechanism includes an oil tank, the bottom of the oil tank is fixedly connected to an L-frame, the top of the oil tank is provided with a refueling port, the bottom of the oil tank is provided with an oil drain port, the oil tank is connected to an oil pipe, and the end of the oil pipe away from the oil tank is connected to the transformer housing, the oil pipe is provided with a one-way oil valve, the transformer housing is connected to a connecting pipe, and the connecting pipe is provided with a one-way oil drain valve, when the temperature in the transformer housing rises, the cooling oil in the transformer housing expands, and then the expanded cooling oil will enter the connecting pipe through the one-way oil drain valve, and then enter the oil tank, and when the temperature in the transformer housing drops, the volume of the cooling oil shrinks, and the new cooling oil in the oil tank will enter the transformer housing through the oil pipe, so as to replenish the cooling oil and accelerate the heat dissipation in the transformer housing.

[0013] Preferably, a placement rack is fixedly connected to the bottom of the transformer shell, a heat dissipation rod is fixedly connected to the outer wall of the transformer shell, and a temperature sensor and a controller are fixedly installed on the bottom inner wall of the transformer shell. Through the use of the temperature sensor, the temperature of the transformer shell can be detected. When the temperature detected by the temperature sensor reaches the specified temperature of the controller, the controller controls the dual-axis motor to start, thereby accelerating the heat dissipation in the transformer shell.

[0014] Preferably, a cover plate is detachably connected to the top of the transformer housing, a lifting ring and an insulator are fixedly connected to the cover plate, and the L frame is fixed to the cover plate.

[0015] The present invention provides an oil-immersed transformer with a heat dissipation structure. It has the following beneficial effects: (1) The oil-immersed transformer with a heat dissipation structure uses a heat dissipation cleaning device. When the temperature in the transformer housing is high, the temperature sensor detects that the temperature reaches the specified temperature of the controller, and the dual-axis motor is started. The output shaft of the dual-axis motor rotates, which drives the rotating shaft to rotate, and then drives the heat dissipation fan to rotate, and the heat of the heat absorbing plate is discharged to the outside through the heat dissipation port. In conjunction with the use of the oil cooling mechanism, the heat dissipation of the cooling oil is accelerated, thereby improving the heat dissipation effect of the oil-immersed transformer.

[0016] (2) The oil-immersed transformer with a heat dissipation structure uses a heat dissipation cleaning device. When there is a lot of dust attached to the filter screen, which affects the heat dissipation of the heat dissipation port, the expansion airbag absorbs a large amount of heat and expands to squeeze the slide plate to drive the connecting rod to descend, so that the cross plate contacts the filter screen. When the output shaft of the dual-axis motor rotates, the cylinder rotates, the slide plate rotates, and then the connecting rod rotates, so that the protrusion on the cross plate rotates with the cross plate, and the protrusion passes through the mesh of the filter screen. In this process, when the protrusion moves out of the mesh of the filter screen, the protrusion compresses the slip ring, and the slip ring squeezes the connecting spring to shrink into the cross plate. When the protrusion is aligned with the mesh of the filter screen, under the reset action of the connecting spring, the slip ring resets, driving the protrusion to extend out of the cross plate, achieving the effect of passing through the filter screen, preventing the filter screen from being blocked, and ensuring the ventilation effect of the filter screen.

[0017] (3) The oil-immersed transformer with a heat dissipation structure uses a heat dissipation cleaning device and an auxiliary cleaning device, so that the output shaft of the dual-axis motor drives the rotating shaft to rotate, which drives the elliptical wheel to rotate and squeeze the square plate. Under the action of the reset spring, the square plate and the elliptical wheel are tightly attached, so that the cross bar slides back and forth in the limit ring, driving the hinged rod to move, and then driving the vertical rod to reciprocate in the vertical direction, so that the round rod slides in the straight groove of the swing rod, and the swing rod swings, driving the arc-shaped spring piece and the knocking block to move, so that the knocking block knocks and vibrates the filter screen, shakes off the dust attached to the filter screen, prevents the dust from adhering to the filter screen and affecting the ventilation effect of the filter screen, and ensures the ventilation effect of the filter screen.

[0018] (4) The oil-immersed transformer with a heat dissipation structure can ensure good sealing of the vertical rod during the lifting process by using a sealing sleeve, thereby preventing external dust from entering the transformer housing. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0020] Figure 1 The overall three-dimensional structure of the present invention is shown in FIG. Figure 1 ; Figure 2 The overall three-dimensional structure of the present invention is shown in FIG. Figure 2 ; Figure 3 The overall cross-sectional structure of the present invention is shown in FIG. Figure 1 ; Figure 4It is a schematic diagram of the structure of the heat exhaust cleaning device and the auxiliary cleaning device of the present invention; Figure 5 The overall cross-sectional structure of the present invention is shown in FIG. Figure 2 ; Figure 6 For the present invention Figure 5 Schematic diagram of the structure of A; Figure 7 It is a schematic diagram of the structure of the auxiliary cleaning device of the present invention.

[0021] Description of Figure Numbers: 1. Transformer housing; 2. Oil cooling mechanism; 3. Mounting seat; 4. Heat dissipation port; 5. Filter; 6. Heat dissipation cleaning device; 7. Auxiliary cleaning device; 101. Placement rack; 102. Heat dissipation rod; 103. Cover plate; 104. Lifting ring; 105. Insulator; 106. Temperature sensor; 107. Controller; 21. Oil tank; 22. L-frame; 23. Refueling port; 24. Oil discharge port; 25. Oil pipeline; 26. Connecting pipe; 27. One-way oil discharge valve; 31. Heat absorbing sheet; 61. Fixed rack; 62. Dual-axis motor; 63. Rotating shaft; 64. Elliptical wheel; 65. Heat dissipation fan; 66. Moving assembly; 67. Cleaning assembly; 661. Cylinder; 662. Slide plate; 663. Inflatable airbag; 664. Stop block; 665. Connecting rod; 666. Support spring; 671. Cross plate; 672. Inner groove; 673. Slip ring; 674. Connecting spring; 675. Protrusion; 71. Support rod; 72. Stop ring; 73. Cross bar; 74. Square plate; 75. Ring; 76. Return spring; 77. Articulated rod; 78. Vertical rod; 79. Sealing sleeve; 710. Round rod; 711. Swing rod; 712. Positioning rod; 713. Arc-shaped spring; 714. Knocking block.

[0022] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0023] In order to enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only embodiments of a part of the present application, rather than all of the embodiments.

[0024] Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making any creative work should fall within the scope of protection of this application.

[0025] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so as to describe the embodiments of the present application described herein.

[0026] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0027] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to specific circumstances.

[0028] In addition, the terms "installed", "set", "provided with", "connected", "connected", and "socketed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0029] It should be noted that, in the absence of conflict, the embodiments in the present application and the features in the embodiments may be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0030] See also Figure 1-Figure 7The present invention proposes an oil-immersed transformer with a heat dissipation structure, comprising a transformer housing 1, a placing rack 101 is fixedly connected to the bottom of the transformer housing 1, a heat dissipation rod 102 is fixedly connected to the outer wall of the transformer housing 1, a temperature sensor 106 and a controller 107 are fixedly installed on the inner wall of the bottom of the transformer housing 1, a cover plate 103 is detachably connected to the top of the transformer housing 1, a hanging ring 104 and an insulator 105 are fixedly connected to the cover plate 103, an oil cooling mechanism 2 is arranged on the outer wall of the transformer housing 1, and through the use of the oil cooling mechanism 2, the oil-immersed transformer can be dissipated when in use, a mounting seat 3 is fixedly connected to the inner wall of the transformer housing 1, a heat absorbing sheet 31 is fixedly connected to the bottom of the mounting seat 3, a heat dissipation port 4 is opened at the bottom of the transformer housing 1, and the heat in the transformer housing 1 can be discharged through the use of the heat dissipation port 4, a filter 5 is fixedly connected to the heat dissipation port 4, and the use of the filter 5 can prevent dust in the outside air from entering the interior of the transformer housing 1, and a heat exhaust cleaning device 6 and an auxiliary cleaning device 7 are arranged below the mounting seat 3.

[0031] In the embodiment of the present invention, in order to perform oil cooling and heat dissipation, specifically, the oil cooling mechanism 2 includes an oil tank 21, the bottom of the oil tank 21 is fixedly connected to an L frame 22, the L frame 22 is fixed to the cover plate 103, the top of the oil tank 21 is provided with a refueling port 23, the bottom of the oil tank 21 is provided with an oil discharge port 24, the oil tank 21 is connected to an oil delivery pipe 25, and the end of the oil delivery pipe 25 away from the oil tank 21 is connected to the transformer housing 1, the oil delivery pipe 25 is provided with a one-way oil delivery valve, and the transformer housing 1 is connected to a connecting pipe 26. A one-way oil drain valve 27 is provided on the connecting pipe 26. When the temperature in the transformer housing 1 increases, the cooling oil in the transformer housing 1 expands, and the expanded cooling oil enters the connecting pipe 26 through the one-way oil drain valve 27, and then enters the oil tank 21. When the temperature in the transformer housing 1 drops, the volume of the cooling oil shrinks, and the new cooling oil in the oil tank 21 enters the transformer housing 1 through the oil pipe 25, so as to replenish the cooling oil and accelerate the heat dissipation in the transformer housing 1.

[0032] Furthermore, in order to further improve the heat dissipation effect of the oil-immersed transformer, specifically, the heat exhaust cleaning device 6 includes a fixed frame 61, a rotating shaft 63, an elliptical wheel 64 and a cleaning assembly 67. The fixed frame 61 is fixedly connected to the bottom inner wall of the transformer housing 1, the upper side of the fixed frame 61 is fixedly connected to a dual-axis motor 62, the rotating shaft 63 is fixedly connected to the output shaft of the dual-axis motor 62, the top of the rotating shaft 63 is fixedly connected to a heat exhaust fan 65, the elliptical wheel 64 is penetrated by the rotating shaft 63 and is fixedly connected to the rotating shaft 63, and the fixed frame 61 is fixedly connected to the bottom inner wall of the transformer housing 1. A moving component 66 is arranged below, and a cleaning component 67 is arranged below the moving component 66. When the temperature in the transformer housing 1 is high, when the temperature sensor 106 detects that the temperature reaches the specified temperature of the controller 107, the dual-axis motor 62 is started, and the output shaft of the dual-axis motor 62 rotates, which will drive the rotating shaft 63 to rotate, and then drive the heat exhaust fan 65 to rotate, and the heat of the heat absorbing plate 31 is discharged to the outside through the heat dissipation port 4. In conjunction with the use of the oil cooling mechanism 2, the discharge of the cooling oil heat is accelerated, and the heat dissipation effect of the oil-immersed transformer is improved.

[0033] In the embodiment of the present invention, in order to clean the dust attached to the filter screen 5, specifically, the moving assembly 66 includes a cylinder 661, the cylinder 661 is fixedly connected to the output shaft of the dual-axis motor 62, a slide plate 662 is slidably connected to the inner wall of the cylinder 661, an expansion airbag 663 is arranged on the slide plate 662, the slide plate 662 is elastically connected to the inner wall of the cylinder 661 through a support spring 666, a limited block 664 is fixedly connected to the inner wall of the cylinder 661, and the lower side of the slide plate 662 is fixedly connected to There is a connecting rod 665, which is sleeved by a cylinder 661. The expanding airbag 663 is heated and expanded, and the expanding airbag 663 squeezes the slide plate 662 to descend. The slide plate 662 compresses the support spring 666 to drive the connecting rod 665 to descend. The cleaning assembly 67 includes a transverse plate 671, which is fixedly connected to the connecting rod 665. An inner groove 672 is provided on the outer wall of the transverse plate 671. A slip ring 673 is slidably connected in the inner groove 672. The inner groove 672 and the slip ring 673 are elastically connected by a connecting spring 674. The slip ring A protrusion 675 is fixedly connected to one side of 673 away from the connecting spring 674. When a lot of dust adheres to the filter 5 and affects the heat dissipation of the heat dissipation port 4, the expansion airbag 663 absorbs a large amount of heat to expand and squeeze the slide plate 662 to drive the connecting rod 665 to descend, so that the cross plate 671 contacts the filter 5. When the output shaft of the dual-axis motor 62 rotates, the cylinder 661 rotates, the slide plate 662 rotates, and then the connecting rod 665 rotates, so that the protrusion 675 on the cross plate 671 rotates with the cross plate 671. The protrusion 675 moves through the mesh of the filter 5. During this process, when the protrusion 675 moves out of the mesh of the filter 5, the protrusion 675 compresses the slip ring 673, and the slip ring 673 squeezes the connecting spring 674 and shrinks into the cross plate 671. When the protrusion 675 is aligned with the mesh of the filter 5, under the resetting action of the connecting spring 674, the slip ring 673 is reset, driving the protrusion 675 to extend out of the cross plate 671, achieving the effect of clearing through the filter 5, preventing the filter 5 from being blocked, and ensuring the ventilation effect of the filter 5.

[0034] Furthermore, in order to further clean the dust attached to the filter 5, specifically, the auxiliary cleaning device 7 includes a support rod 71, the support rod 71 is fixedly connected to the bottom inner wall of the transformer housing 1, the top of the support rod 71 is fixedly connected to a limit ring 72, the limit ring 72 is penetrated by a cross bar 73 and is slidably connected to the cross bar 73, the end of the cross bar 73 close to the rotating shaft 63 is fixedly connected to a square plate 74, the cross bar 73 penetrates a circular ring 75 and is slidably connected to the circular ring 75, and the circular ring 75 is elastically connected to the limit ring 72 by a reset spring 76 The end of the cross bar 73 away from the square plate 74 is hinged with a hinged rod 77, and the end of the hinged rod 77 away from the cross bar 73 is hinged with a vertical rod 78. The vertical rod 78 passes through the sealing sleeve 79 and is slidably connected with the sealing sleeve 79. By using the sealing sleeve 79, the vertical rod 78 can ensure good sealing during the lifting process, thereby preventing external dust from entering the transformer housing. The sealing sleeve 79 is fixedly connected to the bottom inner wall of the transformer housing 1, and the bottom outer wall of the vertical rod 78 is fixedly connected with a round rod 710. The round rod 710 The swing rod 711 is slidably connected to the straight slot of the swing rod 711, the swing rod 711 is hinged with the positioning rod 712, the positioning rod 712 is fixedly connected to the bottom outer wall of the transformer housing 1, the end of the swing rod 711 away from the vertical rod 78 is fixedly connected with an arc spring piece 713, and the top of the arc spring piece 713 is fixedly connected with a knocking block 714. The output shaft of the dual-axis motor 62 drives the rotating shaft 63 to rotate, which drives the elliptical wheel 64 to rotate and squeeze the square plate 74. Due to the action of the reset spring 76, the square plate 74 and the elliptical wheel 64 are tightly The swing rod 711 swings, driving the arc-shaped spring piece 713 and the knocking block 714 to move, so that the knocking block 714 knocks and vibrates the filter screen 5, and shakes off the dust attached to the filter screen 5, preventing the dust from adhering to the filter screen 5 and affecting the ventilation effect of the filter screen 5, thereby ensuring the ventilation effect of the filter screen 5.

[0035] It should be noted that the above-mentioned electrical components are all existing technology products. Technical personnel in this field select, install and complete the circuit debugging work according to the needs of use to ensure that all electrical appliances can work normally. The components are all universal standard parts or components known to technical personnel in this field. Their structures and principles can be known to technical personnel through technical manuals or through conventional experimental methods. The applicant does not make specific restrictions here.

[0036] When in use, when the temperature in the transformer housing 1 is high, when the temperature detected by the temperature sensor 106 reaches the specified temperature of the controller 107, the dual-axis motor 62 is started, and the output shaft of the dual-axis motor 62 rotates, which drives the rotating shaft 63 to rotate, and then drives the heat exhaust fan 65 to rotate, and the heat of the heat absorbing sheet 31 is discharged to the outside through the heat dissipation port 4; At the same time, the output shaft of the dual-axis motor 62 rotates, driving the cylinder 661 to rotate, driving the slide plate 662 to rotate, and then driving the connecting rod 665 to rotate, so that the protrusion 675 on the horizontal plate 671 rotates with the horizontal plate 671, and the protrusion 675 passes through the mesh of the filter screen 5. In this process, when the protrusion 675 moves out of the mesh of the filter screen 5, the protrusion 675 compresses the slip ring 673, and the slip ring 673 squeezes the connecting spring 674 and shrinks into the horizontal plate 671. When the protrusion 675 is aligned with the mesh of the filter screen 5, under the reset action of the connecting spring 674, the slip ring 673 is reset, driving the protrusion 675 to extend out of the horizontal plate 671 and pass through the filter screen 5. At the same time, the output shaft of the dual-axis motor 62 drives the rotating shaft 63 to rotate, thereby driving the elliptical wheel 64 to rotate and squeezing the square plate 74. Due to the action of the reset spring 76, the square plate 74 is in close contact with the elliptical wheel 64, so that the cross bar 73 slides back and forth in the limit ring 72, driving the hinged rod 77 to move, and then driving the vertical rod 78 to reciprocate in the vertical direction, so that the round rod 710 slides in the straight groove of the swing rod 711, and the swing rod 711 swings, driving the arc-shaped spring piece 713 and the knocking block 714 to move, so that the knocking block 714 knocks and vibrates the filter screen 5, thereby shaking off the dust attached to the filter screen 5.

[0037] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. An oil-immersed transformer with a heat dissipation structure, comprising a transformer housing (1), characterized in that: An oil cooling mechanism (2) is arranged on the outer wall of the transformer housing (1); a mounting seat (3) is fixedly connected to the inner wall of the transformer housing (1); a heat absorbing sheet (31) is fixedly connected to the bottom of the mounting seat (3); a heat dissipation port (4) is provided at the bottom of the transformer housing (1); a filter screen (5) is fixedly connected to the heat dissipation port (4); a heat exhaust cleaning device (6) and an auxiliary cleaning device (7) are arranged below the mounting seat (3); the heat exhaust cleaning device (6) comprises: A fixing frame (61), the fixing frame (61) being fixedly connected to the bottom inner wall of the transformer housing (1), and a dual-axis motor (62) being fixedly connected to the upper side of the fixing frame (61); A rotating shaft (63), the rotating shaft (63) being fixedly connected to the output shaft of the dual-shaft motor (62), and a heat exhaust fan (65) being fixedly connected to the top of the rotating shaft (63); an elliptical wheel (64), the elliptical wheel (64) being penetrated by the rotating shaft (63) and fixedly connected to the rotating shaft (63), and a moving component (66) being arranged below the fixed frame (61); and a cleaning component (67), wherein the cleaning component (67) is arranged below the moving component (66).

2. The oil-immersed transformer with a heat dissipation structure according to claim 1, characterized in that: The moving assembly (66) comprises a cylinder (661), wherein the cylinder (661) is fixedly connected to the output shaft of the dual-axis motor (62), a slide plate (662) is slidably connected to the inner wall of the cylinder (661), an expansion airbag (663) is provided on the slide plate (662), the slide plate (662) is elastically connected to the inner wall of the cylinder (661) via a support spring (666), a limit block (664) is fixedly connected to the inner wall of the cylinder (661), a connecting rod (665) is fixedly connected to the lower side of the slide plate (662), the connecting rod (665) is sleeved by the cylinder (661), and the expansion airbag (663) is heated and expanded, the expansion airbag (663) squeezes the slide plate (662) to descend, and the slide plate (662) compresses the support spring (666) to drive the connecting rod (665) to descend.

3. The oil-immersed transformer with a heat dissipation structure according to claim 2, characterized in that: The cleaning assembly (67) comprises a transverse plate (671), wherein the transverse plate (671) is fixedly connected to the connecting rod (665), an inner groove (672) is provided on the outer wall of the transverse plate (671), a slip ring (673) is slidably connected in the inner groove (672), the inner groove (672) and the slip ring (673) are elastically connected via a connecting spring (674), and a protrusion (675) is fixedly connected to the side of the slip ring (673) away from the connecting spring (674).

4. The oil-immersed transformer with a heat dissipation structure according to claim 3, characterized in that: The protrusion (675) penetrates the outer wall of the transverse plate (671) and is slidably connected to the outer wall of the transverse plate (671).

5. The oil-immersed transformer with a heat dissipation structure according to claim 1, characterized in that: The auxiliary cleaning device (7) comprises a support rod (71), the support rod (71) being fixedly connected to the bottom inner wall of the transformer housing (1), the top of the support rod (71) being fixedly connected to a limit ring (72), the limit ring (72) being penetrated by a cross bar (73) and being slidably connected to the cross bar (73), one end of the cross bar (73) close to the rotating shaft (63) being fixedly connected to a square plate (74), the cross bar (73) being penetrated by a circular ring (75) and being slidably connected to the circular ring (75), and the circular ring (75) and the limit ring (72) being elastically connected via a return spring (76).

6. The oil-immersed transformer with a heat dissipation structure according to claim 5, characterized in that: One end of the cross bar (73) away from the square plate (74) is hingedly connected to a hinged rod (77), one end of the hinged rod (77) away from the cross bar (73) is hingedly connected to a vertical rod (78), the vertical rod (78) passes through a sealing sleeve (79) and is slidably connected to the sealing sleeve (79), the sealing sleeve (79) is fixedly connected to the bottom inner wall of the transformer housing (1), and a round rod (710) is fixedly connected to the bottom outer wall of the vertical rod (78).

7. The oil-immersed transformer with a heat dissipation structure according to claim 6, characterized in that: The round rod (710) is slidably connected in the straight slot of the swing rod (711); the swing rod (711) is hinged to the positioning rod (712); the positioning rod (712) is fixedly connected to the bottom outer wall of the transformer housing (1); an end of the swing rod (711) away from the vertical rod (78) is fixedly connected to an arc-shaped spring piece (713); and a knocking block (714) is fixedly connected to the top of the arc-shaped spring piece (713).

8. The oil-immersed transformer with a heat dissipation structure according to claim 1, characterized in that: The oil cooling mechanism (2) comprises an oil tank (21), the bottom of the oil tank (21) is fixedly connected to an L-frame (22), the top of the oil tank (21) is provided with a refueling port (23), the bottom of the oil tank (21) is provided with an oil discharge port (24), the oil tank (21) is connected to an oil delivery pipe (25), and one end of the oil delivery pipe (25) away from the oil tank (21) is connected to the transformer housing (1), the oil delivery pipe (25) is provided with a one-way oil delivery valve, the transformer housing (1) is connected to a connecting pipe (26), and the connecting pipe (26) is provided with a one-way oil discharge valve (27).

9. The oil-immersed transformer with a heat dissipation structure according to claim 1, characterized in that: A placement rack (101) is fixedly connected to the bottom of the transformer housing (1), a heat dissipation rod (102) is fixedly connected to the outer wall of the transformer housing (1), and a temperature sensor (106) and a controller (107) are fixedly mounted on the inner wall of the bottom of the transformer housing (1).

10. The oil-immersed transformer with a heat dissipation structure according to claim 8, characterized in that: A cover plate (103) is detachably connected to the top of the transformer housing (1), a lifting ring (104) and an insulator (105) are fixedly connected to the cover plate (103), and the L frame (22) is fixed to the cover plate (103).

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