Dry-type transformer

Abstract

The utility model discloses a dry-type transformer, which comprises a main body module, the main body module comprises a box body, a transformer main body mounted on the inner wall of the box body, partition plates symmetrically fixed on the inner wall of the box body, and cooling fins fixed on one side, far away from the transformer main body, of each partition plate in an array manner; the heat conduction plates are arranged in an array and connected to the transformer body in a sleeving mode, the two ends of each heat conduction plate are fixedly connected with the corresponding partition plates, the exhaust parts are symmetrically installed on the box body and communicate with an inner cavity of the box body, and the box body is arranged in a sealed mode and used for installing the transformer body and preventing external dust from entering the inner cavity of the box body and being attached to the transformer body; the partition plates are symmetrically arranged and divide the inner cavity in the box body into three cavities, namely the middle equipment cavity and the heat dissipation cavities on the two sides, the transformer body is installed in the middle equipment cavity and can make contact with the outside to cause dust and impurity attachment, and the dry-type transformer has the advantages of being high in heat dissipation efficiency and practicability.

Description

Technical Field

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

[0002] Dry-type transformers are important electrical equipment in power distribution systems. They are widely used due to their oil-free, flame-retardant, low operating loss, and outstanding disaster prevention capabilities. The core structure of commonly used dry-type transformers includes a transformer box and a coil and iron core arranged in the transformer box.

[0003] The existing dry-type transformers have the following main disadvantages during use: generally, heat is dissipated by a fan, which is used to discharge the hot air in the box and inhale cold air. However, this heat dissipation method is inefficient and easily inhales a large amount of dust and impurities into the inner cavity of the transformer box, affecting the operation of the transformer body. Therefore, there is room for improvement. Utility Model Content

[0004] The utility model aims to solve one of the technical problems existing in the prior art or related technology.

[0005] To this end, the technical solution adopted by the utility model is: a dry-type transformer, comprising: a main body module, the main body module comprising a box body, a transformer body installed on the inner wall of the box body, a partition symmetrically fixed on the inner wall of the box body, a heat dissipation fin fixed in an array on the side of the partition away from the transformer body, a plurality of heat-conducting plates arranged in an array and sleeved on the transformer body and fixedly connected to the relative partition at both ends, and an exhaust piece symmetrically installed on the box body and connected to the inner cavity of the box body.

[0006] A water inlet channel is arranged inside one side partition, a water outlet channel is arranged inside the other side partition, a first channel and a second channel are arranged centrally symmetrically inside the heat conduction plate, and a plurality of connecting channels are arranged in an array between the first channel and the second channel.

[0007] In a preferred example, the utility model can be further configured as follows: the partition divides the inner cavity in the box into three cavities, namely the equipment cavity in the middle and the heat dissipation cavities on both sides, and the exhaust member is connected to the heat dissipation cavity.

[0008] In a preferred example, the utility model can be further configured as follows: the exhaust member includes a rectangular tube body fixed on the box body and connected to the heat dissipation cavity, a plurality of high-speed fans installed on the inner wall of the rectangular tube body, and a filter screen installed on the inner wall of the rectangular tube body.

[0009] In a preferred example, the present invention can be further configured as follows: the first flow channel and the second flow channel are both unidirectional flow channels.

[0010] In a preferred example, the present invention can be further configured as follows: the first flow channel is connected to the water inlet flow channel, and the second flow channel is connected to the water outlet flow channel.

[0011] In a preferred example, the utility model can be further configured as follows: the heat conducting plate, the partition plate, and the heat dissipating fins are all made of heat conducting insulating materials.

[0012] By adopting the above technical solution, the beneficial effects achieved by the utility model are as follows:

[0013] 1. In the utility model, the box is set in a closed type, and partitions are symmetrically fixed on the inner wall of the box to divide the inner cavity of the box into three cavities. The transformer body is set in the middle cavity, and a plurality of heat conducting plates are fixed between the relative partitions. The heat conducting plates are sleeved on the transformer body, and a plurality of heat dissipation fins are arranged in an array on one side of the partition. Exhaust parts are installed at the top and bottom of the box to communicate with the cavity on one side of the partition. During operation, the heat of the transformer body is transferred to the partition and the heat dissipation fins through the heat conducting plates. At this time, the exhaust part is started to introduce outside air into the cavity on the side of the partition away from the transformer body, and the heat on the partition and the heat dissipation fins is taken out by high-speed airflow. Through the above-mentioned arrangement, dust can be effectively prevented from adhering to the transformer body during heat dissipation, and the heat dissipation efficiency of the transformer body is guaranteed, further increasing the practical performance.

[0014] 2. In the utility model, the first flow channel and the first flow channel are centrally symmetrically arranged inside the heat conduction plate, a connecting flow channel is arranged between the first flow channel and the second flow channel, and a water inlet flow channel connected to the first flow channel is arranged on one side partition, and a water outlet flow channel connected to the second flow channel is arranged on the other side partition. When in use, cooling water enters the first flow channel through the water inlet flow channel, and enters the second flow channel through the connecting flow channel in the first flow channel. In the process of the cooling water flowing, heat exchange is performed with the heat on the heat conduction plate, thereby taking away the heat on the heat conduction plate, and finally sent out through the water outlet flow channel. The heat dissipation efficiency of the transformer body is further increased by water cooling, thereby avoiding excessive temperature of the transformer body. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 It is a cross-sectional schematic diagram of the utility model;

[0017] Figure 3 This is a schematic diagram of the internal structure of the box of the utility model;

[0018] Figure 4 It is a cross-sectional schematic diagram of the heat conducting plate of the utility model;

[0019] Figure 5It is a partial structural schematic diagram of the utility model.

[0020] Reference numerals:

[0021] 100. Main body module; 110. Box body; 120. Transformer body; 130. Partition; 131. Water inlet channel; 132. Water outlet channel; 140. Heat sink fin; 150. Heat conduction plate; 151. First channel; 152. Second channel; 153. Connecting channel; 160. Exhaust member; 161. Rectangular tube; 162. High-speed fan; 163. Filter. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below in combination with specific implementation methods and with reference to the accompanying drawings. It should be noted that the embodiments of the utility model and the features in the embodiments can be combined with each other without conflict.

[0023] Some embodiments of the present invention are described below in conjunction with the accompanying drawings.

[0024] Embodiment 1:

[0025] Combination Figure 1-5 As shown, this embodiment provides a dry-type transformer, including: a main body module 100.

[0026] Among them, the main module 100 includes a box body 110, a transformer body 120 installed on the inner wall of the box body 110, a partition 130 symmetrically fixed on the inner wall of the box body 110, a heat dissipation fin 140 fixed in an array on the side of the partition 130 away from the transformer body 120, a plurality of heat conducting plates 150 arranged in an array and sleeved on the transformer body 120 and fixedly connected to the relative partition 130 at both ends, and an exhaust piece 160 symmetrically installed on the box body 110 and connected to the inner cavity of the box body 110.

[0027] The box body 110 is sealed and used to install the transformer body 120, while preventing external dust from entering the inner cavity of the box body 110 and adhering to the transformer body 120. The partitions 130 are symmetrically arranged to divide the inner cavity of the box body 110 into three cavities, namely the equipment cavity in the middle and the heat dissipation cavities on both sides. The transformer body 120 is installed in the equipment cavity in the middle and can come into contact with the outside world to cause dust and impurities to adhere. The heat dissipation cavity is used to dissipate the heat generated when the transformer body 120 is working.

[0028] The heat dissipation fins 140 are used to increase the heat dissipation area of ​​the partition 130 and improve the heat dissipation efficiency of the partition 130. The heat conducting plate 150 is sleeved on the transformer body 120, and both ends are fixedly connected to the partition 130. The heat conducting plate 150, the partition 130, and the heat dissipation fins 140 are all made of thermally conductive insulating materials, which can transfer the heat generated by the transformer body 120 during operation to the partition 130 and the heat dissipation fins 140, and dissipate the heat to the external environment through the partition 130 and the heat dissipation fins 140.

[0029] The exhaust piece 160 is connected to the heat dissipation cavity, and is used to increase the air flow path in the heat dissipation cavity and improve the heat dissipation efficiency of the partition 130 and the heat dissipation fins 140. It includes a rectangular tube body 161 fixed on the box body 110 and connected to the heat dissipation cavity, a plurality of high-speed fans 162 installed on the inner wall of the rectangular tube body 161, and a filter 163 installed on the inner wall of the rectangular tube body 161. The rectangular tube body 161 is used to install the high-speed fan 162, the high-speed fan 162 is used to speed up the air flow rate, and the filter 163 is used to prevent dust from entering the heat dissipation cavity.

[0030] A water inlet channel 131 is arranged inside the partition plate 130 on one side, and a water outlet channel 132 is arranged inside the partition plate 130 on the other side. At the same time, a first channel 151 and a second channel 152 are arranged symmetrically inside the heat conducting plate 150, and a plurality of connecting channels 153 are arranged in an array between the first channel 151 and the second channel 152. Both the first channel 151 and the second channel 152 are unidirectional channels, and the first channel 151 is connected to the water inlet channel 131, and the second channel 153 is connected to the water outlet channel 132. 152 is connected to the water outlet channel 132. During operation, cooling water enters the first channel 151 through the water inlet channel 131, and enters the second channel 152 through the connecting channel 153 in the first channel 151. During the flow of cooling water, heat is exchanged with the heat on the heat conducting plate 150, thereby taking away the heat on the heat conducting plate 150, and finally sent out through the water outlet channel 132. The heat dissipation efficiency of the transformer body 120 is further increased by water cooling.

[0031] The working principle and use process of the utility model: when in use, the heat generated by the operation of the transformer main body 120 is transferred to the heat conducting plate 150, and is transferred to the partition 130 and the heat dissipation fins 140 through the heat conducting plate 150. At this time, the high-speed fan 162 is started to introduce the outside air into the cavity on one side of the partition 130, and the gas in the cavity is discharged, so as to accelerate the air flow, and the heat on the partition 130 and the heat conducting plate 150 is taken away by the air flow, so as to dissipate the heat of the transformer main body 120 and prevent dust from adhering to the transformer main body 120. In addition, the cooling water enters the first flow channel 151 through the water inlet channel 131, and enters the second flow channel 152 through the connecting flow channel 153 in the first flow channel 151. In the process of the cooling water flowing, the heat is exchanged with the heat on the heat conducting plate 150, so as to take away the heat on the heat conducting plate 150, and finally sent out through the water outlet channel 132.

[0032] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A dry-type transformer, comprising: A main body module (100), characterized in that the main body module (100) comprises a box (110), a transformer main body (120) mounted on the inner wall of the box (110), a partition (130) symmetrically fixed on the inner wall of the box (110), heat dissipation fins (140) fixed in an array on a side of the partition (130) away from the transformer main body (120), a plurality of heat conducting plates (150) arranged in an array and sleeved on the transformer main body (120) and having two ends fixedly connected to the opposite partition (130), and an exhaust member (160) symmetrically mounted on the box (110) and connected to the inner cavity of the box (110); A water inlet channel (131) is arranged inside the partition plate (130) on one side, and a water outlet channel (132) is arranged inside the partition plate (130) on the other side; a first channel (151) and a second channel (152) are arranged inside the heat conducting plate (150) in a centrally symmetrical manner, and a plurality of connecting channels (153) are arranged in an array between the first channel (151) and the second channel (152).

2. A dry-type transformer according to claim 1, characterized in that: The partition (130) divides the inner cavity of the box body (110) into three cavities, namely a central equipment cavity and heat dissipation cavities on both sides, and the exhaust member (160) is connected to the heat dissipation cavity.

3. A dry-type transformer according to claim 2, characterized in that: The exhaust member (160) comprises a rectangular tube body (161) fixed on the box body (110) and connected to the heat dissipation cavity, a plurality of high-speed fans (162) installed on the inner wall of the rectangular tube body (161), and a filter screen (163) installed on the inner wall of the rectangular tube body (161).

4. A dry-type transformer according to claim 1, characterized in that: The first flow channel (151) and the second flow channel (152) are both unidirectional flow channels.

5. A dry-type transformer according to claim 4, characterized in that: The first flow channel (151) is in communication with the water inlet flow channel (131), and the second flow channel (152) is in communication with the water outlet flow channel (132).

6. A dry-type transformer according to claim 1, characterized in that: The heat conducting plate (150), the partition plate (130) and the heat dissipating fins (140) are all made of heat conducting insulating materials.

Images