A transformer cooling structure

Abstract

The utility model relates to a transformer cooling structure, including a transformer body, wherein two groups of heat dissipation components are symmetrically arranged on the outer side of the transformer body, and each group of the heat dissipation components is composed of heat dissipation fins, fin cross plates, wind shields and air intake units, wherein the heat dissipation fins are provided in plurality and are arranged on the outer side wall of the transformer body at equal intervals in the horizontal direction, and the side of the plurality of heat dissipation fins away from the transformer body is fixedly connected with the fin cross plates. The utility model relates to the technical field of transformers. The transformer cooling structure can accelerate the air flow between the heat dissipation fins by means of air extraction through the heat dissipation components provided, so as to ensure the stability of the air flow, so that the heat dissipation fins can dissipate heat to the transformer body more stably, thereby achieving a better cooling effect of the transformer body and making the transformer cooling structure more practical.

Description

Technical Field

[0001] The utility model relates to the technical field of transformers, in particular to a transformer cooling structure. Background Art

[0002] A transformer is a device that uses the principle of electromagnetic induction to change AC voltage. Its main components are the primary coil, secondary coil and iron core. Its main functions include: voltage conversion, current conversion, impedance conversion, isolation, voltage stabilization, etc.

[0003] In the prior art, when the transformer transforms voltage through the primary coil and the stimulation coil, the iron core used to fix the coil will be affected by the magnetic force and generate eddy currents, which will cause the temperature of the iron core to rise, and the internal temperature of the transformer will increase. Therefore, the transformer needs to be heat-dissipated. The commonly used heat dissipation method is to use oil with a high thermal conductivity coefficient to transfer the temperature of the transformer to the outer casing, and then use a fan to directly blow the cooling fins of the transformer to take away the heat by accelerating the air flow. However, in order to increase the contact area with the air, the heat dissipation fins of the transformer will be made relatively dense, which will cause the air to encounter greater resistance when the fan blows directly, which will affect the cooling effect of the fan. Utility Model Content

[0004] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a transformer cooling structure so as to solve the technical problems mentioned in the above background technology.

[0005] The above technical objectives of the utility model are achieved through the following technical solutions:

[0006] A transformer cooling structure comprises a transformer body, wherein two groups of heat dissipation components are symmetrically arranged on the outside of the transformer body, and each group of the heat dissipation components consists of heat dissipation fins, fin cross plates, wind shields and air intake units, wherein the heat dissipation fins are provided in plurality and are arranged on the outer side wall of the transformer body at equal intervals in the horizontal direction, a plurality of the heat dissipation fins are fixedly connected to the fin cross plates on one side away from the transformer body, and a plurality of the heat dissipation fins are connected to the fin cross plates, a plurality of the heat dissipation fins are connected to the wind shield on the top, and an air intake unit connected to the wind shield is provided on one side of the transformer body located on the wind shield.

[0007] Furthermore, a side of the heat dissipation fin close to the fin transverse plate is in close contact with the fin transverse plate, so that an air channel for heat dissipation is formed between two adjacent heat dissipation fins.

[0008] Furthermore, one side of the wind shield is fixedly connected to the transformer body, and the bottom of the wind shield contacts the tops of the heat dissipation fins and the fin cross plates, so that multiple air ducts for heat dissipation are connected to the wind shield.

[0009] Furthermore, the air intake unit includes an air pump, an air intake pipe and an exhaust pipe. The air pump is fixedly connected to the transformer body, the bottom of the air pump is connected to the wind shield through the air intake pipe, and the top of the air pump is fixedly connected with an exhaust pipe for exhaust.

[0010] Furthermore, the outer side wall of the fin transverse plate is fixedly connected with temperature sensors whose number is equal to the number of the airways and are arranged in the airways in a one-to-one correspondence.

[0011] Furthermore, a control box is fixedly connected to the outer wall of the transformer body, an insulation layer is arranged between the control box and the transformer body, a controller for receiving the temperature sensor signal is fixedly connected in the control box, and a battery for powering the air pump, the temperature sensor and the controller is also connected in the control box.

[0012] In summary, the present invention includes at least one of the following beneficial technical effects:

[0013] 1. The transformer cooling structure can accelerate the air flow between the cooling fins by means of air extraction through the heat dissipation components, so as to ensure the stability of the air flow, so that the cooling fins can dissipate heat for the transformer body more stably, thereby achieving a better cooling effect for the transformer body and making the transformer cooling structure more practical;

[0014] 2. This transformer cooling structure, by being provided with a temperature sensor and a controller, can be used to monitor the temperature in the airway, so that the air pump can be started to actively dissipate heat after the transformer temperature rises to a set threshold, making the heat dissipation more timely and ensuring that the heat dissipation component can protect the transformer body in time. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0016] Figure 1 The utility model is a schematic structural diagram of a transformer cooling structure.

[0017] Figure 2 The utility model is a schematic diagram of the structure of heat dissipation fins in a transformer cooling structure.

[0018] Figure 3 The utility model is a schematic diagram of the structure of a temperature sensor in a transformer cooling structure.

[0019] Figure 4 The utility model is a schematic diagram of airflow flow when a transformer cooling structure dissipates heat.

[0020] Figure 5 The utility model is a schematic diagram of the structure of a control box in a transformer cooling structure.

[0021] In the figure, 1. transformer body; 2. heat dissipation assembly; 21. heat dissipation fins; 22. fin cross plate; 23. wind shield; 24. air intake unit; 241. air pump; 242. air intake pipe; 243. exhaust pipe; 3. temperature sensor; 4. control box; 5. thermal insulation layer; 6. controller; 7. battery. DETAILED DESCRIPTION

[0022] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0023] Example:

[0024] Reference Figure 1 - Figure 5 The utility model discloses a transformer cooling structure, including a transformer body 1, characterized in that two groups of heat dissipation components 2 are symmetrically arranged on the outer side of the transformer body 1, and each group of the heat dissipation components 2 is composed of heat dissipation fins 21, fin cross plates 22, wind shields 23 and air intake units 24, wherein the heat dissipation fins 21 are provided in plurality and are arranged on the outer side wall of the transformer body 1 at equal intervals in the horizontal direction, a plurality of the heat dissipation fins 21 are fixedly connected with the fin cross plates 22 on the side away from the transformer body 1, and a plurality of the heat dissipation fins 21 are connected with the fin cross plates 22, a plurality of the heat dissipation fins 21 are connected with the wind shields 23 on the top, and an air intake unit 24 connected with the wind shields 23 is provided on the side of the transformer body 1 located at the wind shields 23.

[0025] In this embodiment, because the internal iron core of the transformer body 1 generates heat due to eddy currents when the transformer body 1 is in operation, causing the temperature inside the transformer body 1 to increase, cooling oil is usually used inside the transformer body 1 to transfer the heat to the outer casing of the transformer body 1, and the external air flow is used to take away the heat, so as to achieve a cooling effect on the transformer body 1.

[0026] And as Figure 1 As shown, in order to increase the heat dissipation area, a plurality of heat dissipation fins 21 are provided on the outer wall of the transformer body 1 . The heat dissipation fins 21 can effectively increase the contact area between the outer wall of the transformer body 1 and the air, thereby improving the heat dissipation efficiency.

[0027] Because the increase of the heat dissipation fins 21 will reduce the distance between two adjacent heat dissipation fins 21, resulting in a decrease in the natural flow efficiency of the air, which will result in an insufficient improvement in the heat dissipation efficiency. Therefore, a fan is usually used to accelerate the flow of air. Because the distance between two adjacent heat dissipation fins 21 is small, the resistance received when the wind blows will increase, which will cause the heat dissipation effect of the fan to deteriorate. Therefore, the observation Figure 2 It can be found that a fin cross plate 22 is arranged on the outside of the heat dissipation fin 21, and a wind shield 23 is arranged on the top of the heat dissipation fin 21. Figure 1 It can be found that the transformer body 1 is provided with an air intake unit 24 connected to the wind shield 23. The air intake unit 24 can be used to draw air to generate negative pressure in the wind shield 23, and then the negative pressure draws in the outside air (such as Figure 4 As shown), the air flow between the heat dissipation fins 21 is effectively accelerated, making the air flow more stable, thereby achieving a more stable heat dissipation effect.

[0028] In a further preferred embodiment of the present invention, Figure 3 As shown, the side of the heat dissipation fin 21 close to the fin transverse plate 22 is in close contact with the fin transverse plate 22 , so that an air channel for heat dissipation is formed between two adjacent heat dissipation fins 21 .

[0029] In the present embodiment, by making the fin cross plate 22 in close contact with the heat dissipation fins 21, an air passage is formed between two adjacent heat dissipation fins 21, which can prevent air from entering from the sides of the heat dissipation fins 21. When the wind shield 23 generates negative pressure, air can only enter through the bottom of the heat dissipation fins 21, thereby ensuring that the air can fully contact the heat dissipation fins 21 when flowing, thereby efficiently taking away the heat and further improving the heat dissipation effect.

[0030] In a further preferred embodiment of the present invention, Figure 1 and Figure 2 As shown, one side of the wind shield 23 is fixedly connected to the transformer body 1 , and the bottom of the wind shield 23 contacts the tops of the heat dissipation fins 21 and the fin cross plates 22 , so that multiple air passages for heat dissipation are connected to the wind shield 23 .

[0031] In the present embodiment, one side of the wind shield 23 is connected to the transformer body 1, and the bottom is in contact with the tops of the heat dissipation fins 21 and the fin cross plate 22, so that the wind shield 23 is sealedly connected with the heat dissipation fins 21 and the fin cross plate 22. This can prevent the outside air from entering the wind shield 23 through the connecting gap when negative pressure is generated in the wind shield 23 and affecting the air flow of the heat dissipation fins 21, and can be used to ensure the cooling effect of the transformer body 1.

[0032] In a further preferred embodiment of the present invention, Figure 4 As shown, the air intake unit 24 includes an air pump 241, an air intake pipe 242 and an exhaust pipe 243. The air pump 241 is fixedly connected to the transformer body 1, the bottom of the air pump 241 is connected to the wind shield 23 through the air intake pipe 242, and the top of the air pump 241 is fixedly connected with an exhaust pipe 243 for exhaust.

[0033] In this embodiment, by connecting the air inlet end of the air pump 241 to the wind shield 23 through the air inlet pipe 242, the air in the wind shield 23 can be pumped out when the air pump 241 is running, so that negative pressure is generated in the wind shield 23, and then the outside air will be Figure 4 The flow direction shown can allow external air to stably enter between the heat dissipation fins 21 and efficiently take away the heat of the heat dissipation fins 21.

[0034] By placing the exhaust end of the air pump 241 at the top and exhausting the air upwards through the exhaust pipe 243, the heated air carried away by the heat dissipation fins 21 can be discharged to a high place, thereby preventing the hot air from heating the surrounding environment of the transformer body 1 and causing the ambient temperature to rise and affect the heat dissipation.

[0035] In a further preferred embodiment of the present invention, Figure 3 As shown, the outer side wall of the fin transverse plate 22 is fixedly connected with temperature sensors 3 equal in number to the air passages, and are arranged in the air passages in a one-to-one correspondence.

[0036] In this embodiment, the temperature sensor 3 is set up to monitor the temperature in the airway, and to analyze the temperature changes in each airway in real time. After the temperature in the airway rises to the set temperature, the air pump 241 is started to dissipate heat.

[0037] In a further preferred embodiment of the present invention, Figure 1 and Figure 5 As shown, a control box 4 is fixedly connected to the outer wall of the transformer body 1, and a heat insulation layer 5 is arranged between the control box 4 and the transformer body 1. A controller 6 for receiving the signal of the temperature sensor 3 is fixedly connected in the control box 4. A battery 7 for powering the air pump 241, the temperature sensor 3 and the controller 6 is also connected in the control box 4.

[0038] In this embodiment, a control box 4 is provided on the outer wall of the transformer body 1, and a battery 7 and a controller 6 are provided in the control box 4, which can be used to analyze the temperature signal detected by the temperature sensor 3 in real time, so that when the temperature exceeds the set threshold, the air pump 241 is controlled to run to actively dissipate heat for the transformer body 1.

[0039] Because the temperature of the transformer body 1 will increase when in use, causing the control box 4 to be in a high temperature state and affecting the operation of the controller 6, an insulating layer 5 is provided between the control box 4 and the transformer body 1 to prevent the heat of the transformer body 1 from being transferred to the control box 4 and causing the operating environment temperature of the controller 6 to increase, thereby ensuring the operating stability of the controller 6.

[0040] The embodiments of this specific implementation method are all preferred embodiments of the utility model, and are not intended to limit the protection scope of the utility model. Therefore, all equivalent changes made based on the structure, shape, and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A transformer cooling structure, comprising a transformer body (1), characterized in that: Two groups of heat dissipation components (2) are symmetrically arranged on the outer side of the transformer body (1), and each group of the heat dissipation components (2) is composed of a heat dissipation fin (21), a fin cross plate (22), a wind shield (23) and an air intake unit (24), wherein the heat dissipation fins (21) are arranged in plurality and are arranged on the outer side wall of the transformer body (1) at equal intervals in the horizontal direction, a side of the plurality of heat dissipation fins (21) away from the transformer body (1) is fixedly connected to the fin cross plate (22), and the plurality of heat dissipation fins (21) are all connected to the fin cross plate (22), the tops of the plurality of heat dissipation fins (21) are connected to the wind shield (23), and an air intake unit (24) connected to the wind shield (23) is arranged on one side of the transformer body (1) located on the wind shield (23).

2. A transformer cooling structure according to claim 1, characterized in that: The side of the heat dissipation fin (21) close to the fin transverse plate (22) is in close contact with the fin transverse plate (22), so that an air channel for heat dissipation is formed between two adjacent heat dissipation fins (21).

3. A transformer cooling structure according to claim 2, characterized in that: One side of the wind shield (23) is fixedly connected to the transformer body (1), and the bottom of the wind shield (23) is in contact with the top of the heat dissipation fins (21) and the fin cross plate (22), so that multiple air passages for heat dissipation are connected to the wind shield (23).

4. A transformer cooling structure according to claim 3, characterized in that: The air intake unit (24) comprises an air pump (241), an air intake pipe (242) and an exhaust pipe (243); the air pump (241) is fixedly connected to the transformer body (1); the bottom of the air pump (241) is connected to the wind shield (23) via the air intake pipe (242); and the top of the air pump (241) is fixedly connected to the exhaust pipe (243) for exhaust.

5. A transformer cooling structure according to claim 4, characterized in that: The outer side wall of the fin transverse plate (22) is fixedly connected with temperature sensors (3) having the same number as the air passages, and the temperature sensors (3) are arranged in a one-to-one correspondence in the air passages.

6. A transformer cooling structure according to claim 5, characterized in that: A control box (4) is fixedly connected to the outer wall of the transformer body (1); a heat insulation layer (5) is provided between the control box (4) and the transformer body (1); a controller (6) for receiving a signal from the temperature sensor (3) is fixedly connected inside the control box (4); and a storage battery (7) for supplying power to the air pump (241), the temperature sensor (3) and the controller (6) is also connected inside the control box (4).

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