Self-adaptive distribution transformer for active power distribution network

Abstract

The invention provides a self-adaptive distribution transformer for an active power distribution network. The transformer design comprises a transformer shell, and cooling fins are arranged on the periphery of the shell to improve the cooling efficiency. An air guide plate is arranged on one side of each cooling fin and composed of a first inclined plate, a second inclined plate and an arc-shaped turning plate, the first inclined plate and the second inclined plate are arranged in an inclined mode, and therefore air flow is enhanced, and air conduction loss is reduced. Water-cooling assemblies are arranged on the two sides of the transformer, rainwater is collected through a fixed water tank, and water-cooling heat dissipation is achieved through a bottom rainwater conveying assembly. By means of the design, the transformer can automatically adjust the heat dissipation mode according to environment changes, and the safety and energy efficiency of outdoor operation are improved.

Description

Technical Field

[0001] The present invention relates to the field of electric power equipment, and in particular to an adaptive distribution transformer for an active power distribution network. Background Art

[0002] Transformer is a common electrical equipment that uses the principle of electromagnetic induction to change AC voltage. Transformers are widely used in various transmission lines, especially ultra-high voltage transmission lines, which require multiple substations, and each substation has many transformers.

[0003] Common transformer oil dry-type transformers, oil-immersed transformers, combined transformers, etc. Among them, the oil-immersed transformer is a transformer commonly used for outdoor operations, which uses oil for insulation and heat dissipation. In order to enhance the heat dissipation effect of the oil-immersed transformer, a large number of heat sinks are usually set on its surface for heat dissipation. The heat sink helps to increase the heat dissipation area. However, when the wind direction of the existing oil-immersed transformer is perpendicular or nearly perpendicular to the heat sink, there is often no air flow in the heat sink in the middle position, and the heat dissipation effect is very poor. In addition, a single heat sink heat dissipation form cannot dissipate heat well when the temperature of the transformer suddenly rises, not to mention sometimes when there is insufficient wind. Summary of the invention

[0004] The object of the present invention is to provide an adaptive distribution transformer for an active power distribution network, so as to overcome the above-mentioned defects in the prior art.

[0005] According to the present invention, an adaptive distribution transformer for an active power distribution network includes a transformer housing, and heat sinks are fixedly provided around the transformer housing;

[0006] A wind guide plate is arranged on one side of each heat sink to guide the wind, thereby enhancing the air flow between each heat sink; the wind guide plate is fixedly composed of a first inclined plate, a deflection plate, and a second inclined plate, wherein the first inclined plate and the second inclined plate are arranged obliquely to facilitate the conduction of the wind, and the deflection plate is arranged in an arc shape to reduce the loss during the wind conduction process;

[0007] A water cooling assembly is installed on both sides of the transformer housing, the water cooling assembly includes a water tank fixed to the transformer housing, the top of the water tank is opened for collecting rainwater, and a rainwater conveying assembly is arranged at the bottom of the water tank to discharge rainwater;

[0008] The wind guide plate also includes a bottom plate fixedly arranged at the bottom of the No. 1 inclined plate, the changing plate and the No. 2 inclined plate, a rotating assembly is arranged on one side of the wind guide plate, and the rotating assembly includes a rotating seat rotatably arranged on the heat sink, a connecting seat is slidably arranged in the rotating seat, a spring is connected between the connecting seat and the rotating seat, and the spring is in a stretched state, the wind guide plate is fixed at the end of the connecting seat, and a rotating rod is fixedly connected to the top of the rotating seat, and the rotating rod is connected to a pulley driving assembly, and the rotating rod is driven by the pulley driving assembly to rotate to drive the wind guide plate to rotate to the side of the heat sink, and cooperate with the resetting of the spring, so that the wind guide plate and the corresponding heat sink form a container with only a top opening for receiving rainwater discharged by the rainwater conveying assembly, so that the rainwater can stay on the surface of the heat sink for a period of time, thereby achieving a better heat dissipation effect.

[0009] Preferably, in order to facilitate the rotation and resetting of the air guide plate, a guide block is fixed at the bottom of the heat sink, and the guide block abuts against the bottom plate.

[0010] Preferably, the surface of the guide block is arc-shaped, so as to facilitate the resetting of the air guide plate.

[0011] Preferably, the pulley drive assembly includes a No. 1 pulley fixed on the rotating rod, the No. 1 pulley cooperates with the belt, the belt also cooperates with the No. 2 pulley, each of the No. 2 pulleys is fixed on a gear, the gear is rotatably set on the transformer housing, each of the gears is meshed with a rack, the rack is slidably set on the transformer housing through the guidance of at least two guide rails, and the guide rails are fixed to the transformer housing.

[0012] Preferably, for the convenience of driving, the two racks are fixedly arranged on a connecting plate, the connecting plate is fixed to the telescopic end of the electric telescopic rod, and the fixed end of the electric telescopic rod is fixed to the transformer housing.

[0013] Preferably, the rainwater conveying assembly includes a base fixed to the transformer housing, the water tank is fixedly arranged on the base, a No. 1 sleeve is also fixedly arranged on the base, a groove is opened in the water tank, rainwater is collected in the groove of the water tank, a water supply pipe is fixedly connected to the bottom of the water tank, the water supply pipe is connected to the groove in the water tank, at least one No. 1 water delivery hole connected to the internal cavity of the No. 1 sleeve is opened on the No. 1 sleeve, the No. 1 water delivery hole is connected to the water delivery pipe, a No. 2 sleeve is rotatably arranged in the No. 1 sleeve, and the interior of the No. 2 sleeve is also There is a cavity, a No. 2 water delivery hole corresponding to the No. 1 water delivery hole is opened on the No. 2 sleeve, the No. 2 water delivery hole is connected to the internal cavity of the No. 2 sleeve and the No. 1 water delivery hole, and a drainage pipe is fixedly connected on one side of the No. 1 sleeve. The rainwater collected in the water tank will pass through the water delivery pipe, the No. 1 water delivery hole, and the No. 2 water delivery hole and finally flow to the cavity in the No. 2 sleeve for collection; a motor is fixed on one side of the base, the motor shaft of the motor passes through the No. 1 sleeve and is fixed to the No. 2 sleeve, and the motor shaft of the motor is rotatably set on the No. 1 sleeve.

[0014] Preferably, in order to prevent the rainwater in the water tank from deteriorating, a filter net can be installed on the top of the water tank to prevent organic matter such as leaves from entering the water tank.

[0015] Preferably, a control terminal is fixed on the transformer housing, and a temperature detector is integrated in the control terminal to monitor the oil temperature in real time. The control terminal can also control the operation of various electrical appliances.

[0016] The beneficial effects of the present invention are:

[0017] 1. An air guide plate is arranged on one side of each heat sink to guide the wind, thereby enhancing the air flow between the heat sinks; the air guide plate is fixedly composed of a No. 1 inclined plate, a deflection plate, and a No. 2 inclined plate, wherein the No. 1 inclined plate and the No. 2 inclined plate are arranged obliquely to facilitate the conduction of the wind, and the deflection plate is arranged in an arc shape to reduce the loss during the wind conduction process.

[0018] 2. A water cooling assembly is installed on both sides of the transformer housing. The water cooling assembly includes a water tank fixed to the transformer housing. The top opening of the water tank is used to collect rainwater. A rainwater conveying assembly is provided at the bottom of the water tank to discharge the rainwater, thereby water-cooling the heat sink, improving the safety performance of the present application, and autonomously cooling down to cope with dangerous situations in which the oil suddenly rises.

[0019] 3. The wind guide plate also includes a bottom plate, and a rotating assembly is arranged on one side of the wind guide plate, and the rotating assembly includes a rotating seat rotatably arranged on the heat sink, and a rotating rod is fixedly connected to the top of the rotating seat, and the rotating rod is connected to a pulley driving assembly. The rotating rod is driven to rotate by the pulley driving assembly to drive the wind guide plate to rotate to the side of the heat sink, so that the wind guide plate and the corresponding heat sink form a container with only a top opening for receiving rainwater discharged by the rainwater conveying assembly, so that the rainwater can stay on the surface of the heat sink for a period of time, thereby achieving a better heat dissipation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a first schematic diagram of the appearance of the present invention;

[0021] Figure 2 yes Figure 1 The enlarged schematic diagram at A in the middle;

[0022] Figure 3 yes Figure 1 The enlarged schematic diagram of point B in the middle;

[0023] Figure 4 is a second schematic appearance diagram of the present invention;

[0024] Figure 5 yes Figure 4 The enlarged schematic diagram at C in the middle;

[0025] Figure 6 is a third schematic diagram of the appearance of the present invention;

[0026] Figure 7 yes Figure 6 The enlarged schematic diagram at D in the middle;

[0027] Figure 8 It is a first partial cross-sectional illustration of the present invention;

[0028] Fig. 9 yes Figure 8 The enlarged schematic diagram at E in the middle;

[0029] Fig.10 It is a cross-sectional illustration of the second part of the present invention;

[0030] Fig.11 yes Fig.10 Enlarged schematic diagram at F in the middle.

[0031] In the figure: 11, transformer housing; 12, heat sink; 13, water tank; 14, control terminal; 15, air guide plate; 17, connecting plate; 18, electric telescopic rod; 19, motor; 20, base; 21, guide rail; 22, rack; 23, belt; 24, No. 1 pulley; 25, rotating rod; 26, rotating seat; 27, connecting seat; 28, spring; 29, No. 1 inclined plate; 30, change plate; 31, No. 2 inclined plate; 32, drain pipe; 33, gear; 34, No. 2 pulley; 35, bottom plate; 36, guide block; 37, No. 1 sleeve; 38, water supply pipe; 39, No. 2 sleeve; 60, water cooling assembly. DETAILED DESCRIPTION

[0032] In order to make the purpose and advantages of the present invention more clearly understood, the present invention is specifically described in conjunction with the embodiments below. It should be understood that the following text is only used to describe one or several specific implementations of the present invention, and does not strictly limit the protection scope of the specific request of the present invention. As used in this article, the terms up and down and left and right are not limited to their strict geometric definitions, but include tolerances for reasonable and inconsistent machining or human errors. The specific features of the adaptive distribution transformer for active distribution networks are described in detail below:

[0033] Reference Figure 1-Figure 11 , an adaptive distribution transformer for active power distribution network, comprising a transformer housing 11, wherein heat sinks 12 are fixedly arranged around the transformer housing 11;

[0034] The establishment of the heat sink 12 enables the present invention to have a larger contact area with the outside world, and the natural wind blows on the heat sink 12 to accelerate the heat dissipation of the oil in the present invention;

[0035] Under normal circumstances, this heat dissipation method can slowly dissipate heat for the present application, but the heat sinks 12 on the same side of the transformer housing 11 are arranged parallel to each other. When the external wind direction is perpendicular to the heat sink 12 or close to the angle perpendicular to the heat sink 12, the heat sinks 12 in the middle position are easily not blown by the wind, and the air flow between the heat sinks 12 is also poor, resulting in failure to achieve an ideal heat dissipation effect;

[0036] Based on this problem, it is hoped that when the external wind direction is perpendicular to the heat sink 12 or close to the angle perpendicular to the heat sink 12, the air flow between the heat sinks 12 can still be maintained well. The specific implementation method is as follows:

[0037] A wind guide plate 15 is provided on one side of each heat sink 12 to guide the wind, thereby enhancing the air flow between each heat sink 12;

[0038] Furthermore, the wind guide plate 15 is fixedly composed of a first inclined plate 29, a deflection plate 30, and a second inclined plate 31, wherein the first inclined plate 29 and the second inclined plate 31 are obliquely arranged to facilitate wind conduction, and the deflection plate 30 is arc-shaped to reduce losses during wind conduction.

[0039] In addition, when the oil temperature in the transformer housing 11 is suddenly too high, it is difficult to achieve rapid heat dissipation by the above-mentioned air cooling method alone, and there is also a situation where the surrounding wind is insufficient. For this situation, the applicant considers adopting water cooling, specifically:

[0040] A water cooling assembly 60 is installed on both sides of the transformer housing 11. The water cooling assembly 60 includes a water tank 13 fixed to the transformer housing 11. The top of the water tank 13 is opened to collect rainwater. A rainwater conveying assembly is arranged at the bottom of the water tank 13 to discharge rainwater, thereby water cooling the heat sink 12.

[0041] However, water has a large specific heat capacity and poor thermal conductivity. The applicant hopes that rainwater can stay on the heat sink 12 for a period of time to optimize its heat dissipation effect. To achieve this goal, the following measures are taken:

[0042] The wind deflector 15 also includes a bottom plate 35 fixedly arranged at the bottom of the first inclined plate 29, the deflection plate 30 and the second inclined plate 31. A rotating assembly is arranged on one side of the wind deflector 15. The rotating assembly includes a rotating seat 26 rotatably arranged on the heat sink 12. A connecting seat 27 is slidably arranged in the rotating seat 26. A spring 28 is connected between the connecting seat 27 and the rotating seat 26. The spring 28 is in a stretched state. The wind deflector 15 is fixed at the end of the connecting seat 27. A rotating rod 25 is fixedly connected to the top of the rotating seat 26. The rotating rod 25 is connected to a pulley driving assembly. The rotating rod 25 is driven by the pulley driving assembly to rotate, which can drive the wind deflector 15 to rotate to the side of the heat sink 12. In cooperation with the resetting of the spring 28, the wind deflector 15 and the corresponding heat sink 12 form a container with only a top opening for receiving rainwater discharged by the rainwater conveying assembly, so that the rainwater can stay on the surface of the heat sink 12 for a period of time, thereby achieving a better heat dissipation effect.

[0043] In addition, in order to facilitate the rotation and resetting of the air guide plate 15 , a guide block 36 is fixed at the bottom of the heat sink 12 , the guide block 36 abuts against the bottom plate 35 , and the surface of the guide block 36 is arc-shaped, which facilitates guiding the resetting of the air guide plate 15 .

[0044] The pulley drive assembly includes a first pulley 24 fixed on the rotating rod 25, the first pulley 24 cooperates with the belt 23, the belt 23 also cooperates with the second pulley 34, each of the second pulleys 34 is fixed on a gear 33, the gear 33 is rotatably arranged on the transformer housing 11, each of the gears 33 is meshed with a rack 22, the rack 22 is slidably arranged on the transformer housing 11 through the guidance of at least two guide rails 21, and the guide rails 21 are fixed to the transformer housing 11;

[0045] Further, for the convenience of driving, the two racks 22 are fixedly arranged on the connecting plate 17, the connecting plate 17 is fixed to the telescopic end of the electric telescopic rod 18, and the fixed end of the electric telescopic rod 18 is fixed to the transformer housing 11;

[0046] The connecting plate 17 is extended and retracted by the extension and retraction of the electric telescopic rod 18, and the connecting plate 17 drives the two racks 22 to move. The meshing of each gear 33 with the rack 22 drives each gear 33 to rotate together, and the gear 33 drives the corresponding No. 2 pulley 34 to rotate. The No. 1 pulley 24 is driven to rotate by the transmission of the belt 23, and the No. 1 pulley 24 drives the rotating rod 25 to rotate.

[0047] The rainwater conveying assembly includes a base 20 fixed to the transformer housing 11, the water tank 13 is fixedly arranged on the base 20, a No. 1 sleeve 37 is also fixedly arranged on the base 20, a groove is opened in the water tank 13, rainwater is collected in the groove of the water tank 13, a water supply pipe 38 is fixedly connected to the bottom of the water tank 13, the water supply pipe 38 is connected to the groove in the water tank 13, at least one No. 1 water delivery hole 41 connected to the internal cavity of the No. 1 sleeve 37 is opened, the No. 1 water delivery hole 41 is connected to the water delivery pipe 38, a No. 2 sleeve 39 is rotatably arranged in the No. 1 sleeve 37, the No. 2 sleeve 39 also has a cavity inside, a No. 2 water delivery hole 40 corresponding to the No. 1 water delivery hole 41 is opened on the No. 2 sleeve 39, and the No. 2 water delivery hole 40 is opened on the No. 2 sleeve 39. The hole 40 is connected to the internal cavity of the No. 2 sleeve 39 and the No. 1 water delivery hole 41. A drainage pipe 32 is fixedly connected on one side of the No. 1 sleeve 37. The rainwater collected in the water tank 13 will pass through the water delivery pipe 38, the No. 1 water delivery hole 41, and the No. 2 water delivery hole 40 and finally flow to the cavity in the No. 2 sleeve 39 for collection; a motor 19 is fixed to one side of the base 20, and the motor shaft of the motor 19 passes through the No. 1 sleeve 37 and is fixed to the No. 2 sleeve 39. The motor shaft of the motor 19 is rotatably set on the No. 1 sleeve 37. After the motor 19 is started, it will drive the No. 2 sleeve 39 to rotate, so that the No. 2 water delivery hole 40 is aligned with the drainage pipe 32, so that the rainwater in the No. 2 sleeve 39 flows through the drainage pipe 32 to the rotated wind guide plate 15.

[0048] In addition, in order to prevent the rainwater in the water tank 13 from deteriorating, a filter net can be installed on the top of the water tank 13 to prevent organic matter such as leaves from entering the water tank 13.

[0049] In addition, a control terminal 14 is fixed on the transformer housing 11, and a temperature detector is integrated in the control terminal 14 to monitor the oil temperature in real time. The control terminal 14 can also control the operation of various electrical appliances in the present application.

[0050] It will be clear to those skilled in the art that various modifications to the above embodiments may be made without departing from the overall spirit and concept of the present invention. All of these modifications fall within the scope of protection of the present invention. The protection scheme of the present invention shall be subject to the claims attached to the present invention.

Claims

1. An adaptive distribution transformer for an active power distribution network, comprising a transformer housing (11), wherein heat sinks (12) are fixedly provided around the transformer housing (11), characterized in that: A wind guide plate (15) is arranged on one side of each of the heat sinks (12) to guide the wind, thereby enhancing the air flow between the heat sinks (12); the wind guide plate (15) is fixedly composed of a first inclined plate (29), a deflection plate (30), and a second inclined plate (31), wherein the first inclined plate (29) and the second inclined plate (31) are arranged obliquely to facilitate wind conduction, and the deflection plate (30) is arranged in an arc shape to reduce the loss in the wind conduction process; A water cooling assembly (60) is installed on both sides of the transformer housing (11), the water cooling assembly (60) comprising a water tank (13) fixed to the transformer housing (11), the top of the water tank (13) being open for collecting rainwater, and a rainwater conveying assembly being arranged at the bottom of the water tank (13) for discharging rainwater; The wind guide plate (15) further comprises a bottom plate (35) fixedly arranged at the bottom of the first inclined plate (29), the deflection plate (30) and the second inclined plate (31); a rotating assembly is arranged on one side of the wind guide plate (15); the rotating assembly comprises a rotating seat (26) rotatably arranged on the heat sink (12); a connecting seat (27) is slidably arranged in the rotating seat (26); a spring (28) is connected between the connecting seat (27) and the rotating seat (26); the spring (28) is in a stretched state; the wind guide is fixed at the end of the connecting seat (27). The plate (15) is fixedly connected to a rotating rod (25) on the top of the rotating seat (26), and the rotating rod (25) is connected to a pulley driving assembly. The pulley driving assembly drives the rotating rod (25) to rotate, which can drive the air guide plate (15) to rotate to the side of the heat sink (12). In conjunction with the resetting of the spring (28), the air guide plate (15) and the corresponding heat sink (12) form a container with only a top opening for receiving rainwater discharged by the rainwater conveying assembly, so that the rainwater can stay on the surface of the heat sink (12) for a period of time, thereby achieving a better heat dissipation effect.

2. The adaptive distribution transformer for active power distribution network according to claim 1, characterized in that: In order to facilitate the rotation and resetting of the air guide plate (15), a guide block (36) is fixed at the bottom of the heat sink (12), and the guide block (36) abuts against the bottom plate (35).

3. The adaptive distribution transformer for active power distribution network according to claim 2, characterized in that: The surface of the guide block (36) is in an arc shape, which facilitates the resetting of the air guide plate (15).

4. The adaptive distribution transformer for active power distribution network according to claim 1, characterized in that: The pulley drive assembly comprises a first pulley (24) fixed on the rotating rod (25), the first pulley (24) cooperates with a belt (23), the belt (23) also cooperates with a second pulley (34), each of the second pulleys (34) is fixed on a gear (33), the gear (33) is rotatably arranged on the transformer housing (11), each of the gears (33) is meshed with a rack (22), the rack (22) is slidably arranged on the transformer housing (11) through the guidance of at least two guide rails (21), and the guide rails (21) are fixed to the transformer housing (11).

5. The adaptive distribution transformer for active power distribution network according to claim 4, characterized in that: For the convenience of driving, the two racks (22) are fixedly arranged on the connecting plate (17), the connecting plate (17) is fixed to the telescopic end of the electric telescopic rod (18), and the fixed end of the electric telescopic rod (18) is fixed to the transformer housing (11).

6. The adaptive distribution transformer for active power distribution network according to claim 1, characterized in that: The rainwater conveying assembly comprises a base (20) fixed to the transformer housing (11); the water tank (13) is fixedly arranged on the base (20); a first sleeve (37) is also fixedly arranged on the base (20); a groove is opened in the water tank (13); rainwater is collected in the groove of the water tank (13); a water supply pipe (38) is fixedly connected to the bottom of the water tank (13); the water supply pipe (38) is connected to the groove in the water tank (13); at least one first water delivery hole (41) connected to the internal cavity of the first sleeve (37) is opened on the first sleeve (37); the first water delivery hole (41) is connected to the water delivery pipe (38); a second sleeve (39) is rotatably arranged in the first sleeve (37); the second sleeve (39) also has a hollow space inside. The second sleeve (39) is provided with a second water delivery hole (40) corresponding to the first water delivery hole (41), the second water delivery hole (40) is connected to the internal cavity of the second sleeve (39) and the first water delivery hole (41), a drainage pipe (32) is fixedly connected on one side of the first sleeve (37), and rainwater collected in the water tank (13) will eventually flow to the cavity in the second sleeve (39) through the water delivery pipe (38), the first water delivery hole (41), and the second water delivery hole (40) to be collected; a motor (19) is fixed on one side of the base (20), the motor shaft of the motor (19) passes through the first sleeve (37) and is fixed to the second sleeve (39), and the motor shaft of the motor (19) is rotatably arranged on the first sleeve (37).

7. The adaptive distribution transformer for active power distribution network according to claim 6, characterized in that: In order to prevent the rainwater in the water tank (13) from deteriorating, a filter net can be installed on the top of the water tank (13) to prevent organic matter such as leaves from entering the water tank (13).

8. The adaptive distribution transformer for active power distribution network according to claim 1, characterized in that: A control terminal (14) is fixed on the transformer housing (11), and a temperature detector is integrated in the control terminal (14) to monitor the oil temperature in real time. The control terminal (14) can also control the operation of various electrical appliances.

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