Transformer shell heat dissipation structure

Abstract

The utility model discloses a transformer shell heat dissipation structure which comprises a plurality of vertically-extending fins arranged on the periphery of a transformer shell, a plurality of air passing pipes are arranged on the fins in a penetrating mode, a plurality of side air holes are formed in the inner sides of the air passing pipes in the circumferential direction, inner cavities are formed in the fins, and the side air holes are communicated with the inner cavities. An inner cavity is formed in the transformer shell, the side, facing the interior of the transformer shell, of the inner cavity is provided with an opening, each side face of the transformer shell is provided with a cover shell covering all fins on the face where the cover shell is located, the four cover shells are sequentially communicated, the cover shell located at the head is provided with a plurality of exhaust fans arranged in the longitudinal direction, and the cover shell located at the tail is provided with an air inlet. And a filter screen covers the air inlet. Compared with a traditional heat dissipation structure in which heat is dissipated only through fins, the heat dissipation structure of the transformer shell can prevent heat from being accumulated near the fins, and the heat dissipation effect is better.

Description

Technical Field

[0001] The utility model relates to the field of transformers, and in particular to a heat dissipation structure of a transformer shell. 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, the secondary coil, and the iron core. In electrical equipment and wireless circuits, it is often used to increase or decrease voltage, match impedance, and provide safety isolation. In a generator, whether the coil moves through a magnetic field or the magnetic field moves through a fixed coil, an electric potential can be induced in the coil. In both cases, the value of the magnetic flux remains unchanged, but the amount of magnetic flux interlinked with the coil changes. This is the principle of mutual induction. A transformer is a device that uses electromagnetic mutual induction to transform voltage, current, and impedance.

[0003] Chinese patent CN202410092955.8 discloses a dust removal and cooling integrated transformer, including a transformer body and a plurality of heat dissipation fins arranged on the front and rear sides of the transformer body, a transfer box is fixedly connected to the top of the transformer body, a heat dissipation drive assembly and a transmission assembly are arranged on the transfer box, and a U-shaped bracket is fixedly connected to the front and rear sides of the transformer body. Combined with its attached drawings, it can be seen that the fins of the dust removal and cooling integrated transformer are flat-plate structures. When the transformer is cooled, the temperature easily accumulates between the heat dissipation fins, resulting in the problem of unsatisfactory heat dissipation effect. Utility Model Content

[0004] The utility model aims to provide a transformer housing heat dissipation structure, which can avoid heat accumulation near the fins and has a better heat dissipation effect compared with the traditional heat dissipation structure which only dissipates heat through fins.

[0005] In order to achieve the above-mentioned purpose, the utility model provides a transformer housing heat dissipation structure, including a plurality of vertically extending fins arranged around the transformer housing, a plurality of air pipes penetrating the fins, a plurality of side air holes arranged along the circumferential direction on the inner side of the air pipes, an inner cavity arranged in the fins, and an open side of the inner cavity facing the transformer housing, a cover shell covering all the fins on each side of the transformer housing, four cover shells are sequentially connected, a plurality of exhaust fans arranged in the longitudinal direction are arranged on the cover shell at the head, an air inlet is arranged on the cover shell at the tail, and a filter is provided on the upper cover of the air inlet.

[0006] Preferably, two adjacent cover shells are connected via a plurality of curved pipes, and the side surfaces of the cover shells are provided with air guide holes connected to the curved pipes.

[0007] Preferably, a baffle is provided on one side of the filter screen facing the fin adjacent thereto, and a gap is provided between an inner end of the baffle and an outer wall of the transformer housing.

[0008] Preferably, the outer end, the upper end and the outer end of the fin are all fixed to the inner side surface of the cover shell.

[0009] Preferably, the plurality of fins on each side of the transformer housing are arranged at equal intervals.

[0010] Preferably, the exhaust fan is disposed one at each of the upper, middle and lower parts corresponding to the outer side surface of the casing.

[0011] Preferably, two supporting plates are symmetrically arranged at the bottom of the transformer housing.

[0012] According to the above technical scheme, the utility model provides a transformer housing heat dissipation structure, including a plurality of vertically extending fins arranged around the transformer housing, a plurality of air pipes are penetrated on the fins, a plurality of side air holes are arranged on the inner side of the air pipes along the circumferential direction, an inner cavity is arranged in the fin, and the side of the inner cavity facing the transformer housing is arranged to be open, and a cover shell covering all the fins on the surface is arranged on each side of the transformer housing, and the four cover shells are sequentially connected, and a plurality of exhaust fans arranged in the longitudinal direction are arranged on the cover shell located at the head, and an air inlet is arranged on the cover shell located at the tail, and a filter is provided on the upper cover of the air inlet.

[0013] The heat dissipation method and beneficial effect of the heat dissipation structure of the transformer housing are as follows: multiple exhaust fans are turned on, so that the space between the multiple housings and the fins forms a negative pressure, and then the surrounding air enters the air inlet through the filter, so as to take away the heat accumulated around the fins, thereby accelerating the heat dissipation effect of the fins. That is, the temperature inside the transformer housing is transferred to the fins, and then transferred by the fins to the air entering from the air inlet, and the incoming air is heated and discharged through the exhaust fan. In addition, due to the arrangement of multiple air pipes on the fins, the air needs to pass through the air pipes when flowing, and then the hot air flow emitted from the inner cavity discharged from the side air holes can be carried out, further accelerating the heat dissipation. In addition, a filter is provided on the upper cover of the air inlet to prevent external solid particles and impurities from entering the housing, so as to keep the housing unobstructed.

[0014] Other features and advantages of the present invention will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present invention, but do not constitute a limitation to the present invention. In the accompanying drawings:

[0016] Figure 1 It is a schematic diagram of the overall structure of a preferred implementation of the heat dissipation structure of the transformer housing;

[0017] Figure 2 It is a front view of a preferred embodiment of the heat dissipation structure of the transformer housing;

[0018] Figure 3 yes Figure 2 AA cross-sectional structural diagram;

[0019] Figure 4 yes Figure 3 A schematic diagram of the local enlarged structure of the middle B area;

[0020] Figure 5 yes Figure 3 Schematic diagram of the local enlarged structure of the middle C area;

[0021] Figure 6 It is a schematic diagram of the distribution structure of a preferred implementation of fins on a transformer housing.

[0022] Description of Reference Numerals

[0023] 1-transformer housing; 2-exhaust fan; 3-gap; 4-cover; 5-elbow pipe; 6-fin; 7-side air hole; 8-filter; 9-air inlet; 10-baffle; 11-inner cavity; 12-air pipe; 13-air guide hole; 14-support plate. DETAILED DESCRIPTION

[0024] The specific implementation of the present invention is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present invention, and is not used to limit the present invention.

[0025] In the present utility model, unless otherwise stated, directional words contained in terms such as "up, down, left, right, front, back, inside, outside" merely represent the orientation of the terms in normal usage, or are common names understood by those skilled in the art, and should not be regarded as limitations on the terms.

[0026] See also Figure 1-6The heat dissipation structure of the transformer housing shown includes a plurality of vertically extending fins 6 arranged around the transformer housing 1, a plurality of air pipes 12 are penetrated through the fins 6, a plurality of side air holes 7 are arranged on the inner side of the air pipes 12 in a circumferential direction, an inner cavity 11 is arranged in the fins 6, and the side of the inner cavity 11 facing the transformer housing 1 is arranged to be open, and a cover shell 4 covering all the fins 6 on each side of the transformer housing 1 is arranged, and the four cover shells 4 are connected in sequence, and a plurality of exhaust fans 2 arranged in the longitudinal direction are arranged on the cover shell 4 located at the head, and an air inlet 9 is arranged on the cover shell 4 located at the tail, and a filter screen 8 is provided on the air inlet 9.

[0027] Through the implementation of the above technical solution, when the heat dissipation structure of the transformer housing is in use, multiple exhaust fans 2 are turned on, so that the space between the multiple housings 4 and the fins 6 forms a negative pressure, and then the surrounding air enters the air inlet 9 through the filter 8, so as to take away the heat accumulated around the fins 6, thereby accelerating the heat dissipation effect of the fins 6. That is, the temperature in the transformer housing 1 is transferred to the fins 6, and then transferred from the fins 6 to the air entering from the air inlet 9, and the incoming air is heated and discharged through the exhaust fan 2. In addition, due to the arrangement of multiple air pipes 12 on the fins 6, the air needs to pass through the air pipes 12 when flowing, and then the hot air flow emitted from the inner cavity 11 discharged from the side air holes 7 can be carried out, further accelerating the heat dissipation. In addition, the filter 8 is provided on the air inlet 9 to prevent external solid particles and impurities from entering the housing 4, so as to keep the housing 4 unobstructed.

[0028] In this embodiment, two adjacent housings 4 are connected by multiple elbows 5, and the side of the housing 4 is provided with air guide holes 13 connected with the elbows 5. The specific connection mode of the four housings 4 is as follows: a housing 4 is provided at the head, a housing 4 is provided at the tail, and two housings 4 are provided in the middle, the two middle housings 4 are connected by multiple elbows 5, the housing 4 at the head is connected with the adjacent middle housing 4 through the elbow 5, the housing 4 at the tail is connected with the adjacent middle housing 4 through the elbow 5, and the housing 4 at the head is not connected with the housing 4 at the tail. In addition, the air inlet 9 is provided as a vertically extending strip hole, the strip hole is provided on the outer side of one end away from the adjacent middle housing 4, and the exhaust fan 2 is provided on the outer side of one end away from the adjacent middle housing 4. The air inlet direction of the air inlet 9 is perpendicular to the exhaust direction of the exhaust fan 2, so as to prevent the discharged hot air from entering the air inlet 9.

[0029] In this embodiment, a baffle 10 is provided on one side of the filter 8 facing the adjacent fin 6, and a gap 3 is provided between the inner end of the baffle 10 and the outer wall of the transformer housing 1. Through such an arrangement, when it is rainy outside, most of the rainwater can be blocked from entering the housing 4 by the baffle 10, thereby preventing the rainwater from eroding the inside of the housing 4. In addition, a plurality of baffles 10 can be staggered and fixed to the housing 4 and the transformer housing 1, respectively, so that the air intake forms an S-shaped curved path, further improving the rainwater blocking effect.

[0030] In this embodiment, the outer end, upper end and outer end of the fin 6 are all fixed to the inner side of the housing 4. Through such a configuration, the upper end, lower end and outer end of the fin 6 are all fixed to the inner wall of the housing 4, so that the flowing air between two adjacent fins 6 can only pass through the air pipe 12. Thereby, the heat in the transformer housing 1 is carried and discharged from the side air holes 7.

[0031] In this embodiment, in order to further improve the heat dissipation effect, the multiple fins 6 on each side of the transformer housing 1 are arranged at equal intervals.

[0032] In this embodiment, in order to further improve the heat dissipation effect, one exhaust fan 2 is disposed at the upper part, the middle part and the lower part corresponding to the outer side surface of the cover shell 4.

[0033] In this embodiment, two support plates 14 are symmetrically arranged at the bottom of the transformer housing 1. The two support plates 14 are arranged to raise the transformer housing 1, so that the bottom of the transformer housing 1 is easier to dissipate heat.

[0034] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, the technical solution of the present invention can be subjected to a variety of simple modifications, and these simple modifications all belong to the protection scope of the present invention.

[0035] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present utility model will not further describe various possible combinations.

[0036] In addition, various embodiments of the present invention may be arbitrarily combined, and as long as they do not violate the concept of the present invention, they should also be regarded as the contents disclosed by the present invention.

Claims

1. A transformer housing heat dissipation structure, characterized in that: The heat dissipation structure of the transformer housing comprises a plurality of vertically extending fins (6) arranged around the transformer housing (1), a plurality of air passages (12) passing through the fins (6), a plurality of side air holes (7) being arranged on the inner side of the air passages (12) in a circumferential direction, an inner cavity (11) being arranged in the fins (6), a side of the inner cavity (11) facing the inside of the transformer housing (1) being arranged to be open, a cover (4) covering all the fins (6) on each side of the transformer housing (1), four of the cover shells (4) being connected in sequence, a plurality of exhaust fans (2) arranged in a longitudinal direction being arranged on the cover shell (4) at the head, an air inlet (9) being arranged on the cover shell (4) at the tail, and a filter screen (8) being arranged on the upper cover of the air inlet (9).

2. The heat dissipation structure of the transformer housing according to claim 1, characterized in that: Two adjacent cover shells (4) are connected via a plurality of curved pipes (5), and a gas guide hole (13) connected to the curved pipes (5) is provided on the side of the cover shell (4).

3. The heat dissipation structure of the transformer housing according to claim 1, characterized in that: A baffle (10) is provided on the side of the filter screen (8) facing the adjacent fin (6), and a gap (3) is provided between the inner end of the baffle (10) and the outer wall of the transformer housing (1).

4. The transformer housing heat dissipation structure according to claim 1, characterized in that: The outer end, the upper end and the outer end of the fin (6) are all fixedly connected to the inner side surface of the cover shell (4).

5. The heat dissipation structure of the transformer housing according to claim 1, characterized in that: The plurality of fins (6) on each side surface of the transformer housing (1) are arranged at equal intervals.

6. The heat dissipation structure of the transformer housing according to claim 1, characterized in that: The exhaust fan (2) is disposed one at each of the upper, middle and lower parts corresponding to the outer side surface of the cover shell (4).

7. The transformer housing heat dissipation structure according to claim 1, characterized in that: Two support plates (14) are symmetrically arranged at the bottom of the transformer housing (1).

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