CN214377919U

CN214377919U - Transformer with cooling channel

Info

Publication number: CN214377919U
Application number: CN202120399374.0U
Authority: CN
Inventors: 顾仁伏; 刘益民; 周永春
Original assignee: Suzhou Senguang Heat Exchanger Co ltd
Current assignee: Suzhou Senguang Heat Exchanger Co ltd
Priority date: 2021-02-23
Filing date: 2021-02-23
Publication date: 2021-10-08
Anticipated expiration: 2031-02-23

Abstract

A transformer with a cooling channel comprises a shell and a transformer main body, wherein the transformer main body is sealed in the shell and comprises an iron core and a coil wound on the iron core, and a gap is formed in the middle of the transformer main body; the transformer further comprises a channel pipe arranged in the middle of the transformer main body, the channel pipe is a linear pipeline and penetrates through a gap in the transformer main body to penetrate through the transformer in the vertical direction, and two ends of the channel pipe protrude out of the transformer. The utility model discloses a put at transformer central point and set up the passageway pipe, can effectively reduce the temperature that transformer central point put 30% to can not influence the vortex between transformer core and the coil.

Description

Transformer with cooling channel

Technical Field

The utility model relates to a transformer heat dissipation technical field, in particular to transformer with cooling channel.

Background

The transformer is a complete set of transformation equipment, can be used for terminal power supply and looped network power supply, and the conversion is very convenient, has guaranteed the reliability and the flexibility of power supply, but the transformer can produce a lot of heats in the operation process, so need set up corresponding heat radiation structure.

At present, the heat dissipation of the radiator is generally performed by placing the radiator outdoors and blowing the radiator by wind or by oil circulation, however, when the radiator meets some special use environments, such as on a high-speed rail, the transformer adopted by the high-speed rail has large capacity and can generate vibration, and in order to ensure safety, the transformer must be placed in an insulating shell for sealing.

The existing transformer sealed in an insulating shell is generally used for radiating heat of a transformer shell, but the central position of the transformer cannot be used for radiating heat.

Therefore, how to solve the above-mentioned deficiencies of the prior art is a problem to be solved by the present invention.

Disclosure of Invention

The utility model provides a transformer with cooling channel, aim at solve the heat dissipation problem that transformer central point put.

In order to achieve the above purpose, the utility model adopts the technical scheme that: a transformer with a cooling channel comprises a shell and a transformer main body, wherein the transformer main body is sealed in the shell and comprises an iron core and a coil wound on the iron core, and a gap is formed in the middle of the transformer main body;

the transformer further comprises a channel pipe arranged in the middle of the transformer main body, the channel pipe is a linear pipeline and penetrates through a gap in the transformer main body so as to penetrate through the transformer in the vertical direction, and two ends of the channel pipe protrude out of the transformer.

The related content of the utility model is explained as follows:

1. in the above scheme, the iron core is wound with two groups of coils, the two groups of coils are arranged oppositely, a gap is formed in the middle of the transformer main body, and the gap is located between the two groups of coils.

2. In the above solution, the gap generally refers to an air gap on a pillar of the transformer.

3. In the scheme, the channel pipe is internally provided with a plurality of channels which are arranged in parallel. The channel is used for air supply, liquid or refrigerant to pass through, thereby takes the heat of transformer main part central point position out of transformer main part through the passageway pipe. The channel tube may also have only one channel, without limiting the number of channels in the channel tube.

4. In the above scheme, the channel tube is an aluminum microchannel tube. The channel tube may also be a microchannel tube made of silver or other thermally and magnetically non-conductive material. The use of an aluminum microchannel tube has the advantage of lower cost than the use of a silver microchannel tube. The eddy current between the transformer iron core and the coil cannot be influenced while heat is conducted through the arrangement of the aluminum micro-channel tube.

5. In the above scheme, only one channel tube can be placed in the gap on the transformer main body, and a plurality of channel tubes can be arranged in parallel, so that the more the channel tubes are, the better the heat dissipation effect is, and the number of the channel tubes can be selectively set according to the heat dissipated as required.

Because of the application of above-mentioned scheme, compared with the prior art, the utility model have following advantage and effect:

the utility model discloses a put at transformer central point and set up the passageway pipe, can effectively reduce the temperature that transformer central point put 30% to can not influence the vortex between transformer core and the coil.

Drawings

Fig. 1 is a schematic perspective view of an embodiment of the present invention;

fig. 2 is a cross-sectional view of an embodiment of the present invention;

fig. 3 is a schematic perspective view of an embodiment of the present invention when the upper portion of the outer shell is opened.

In the above drawings: 1. a housing; 2. a transformer body; 21. an iron core; 22. a coil; 23. a void; 3. a passage tube; 31. a channel.

Detailed Description

The invention will be further described with reference to the following drawings and examples:

example (b): the present disclosure will be described more fully hereinafter with reference to the accompanying drawings, in which embodiments of the disclosure may be shown and described, and which, when modified and varied by the techniques taught herein, can be made by those skilled in the art without departing from the spirit and scope of the disclosure.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. The singular forms "a", "an", "the" and "the", as used herein, also include the plural forms.

As used herein, connected may mean that two or more elements or devices are in direct physical or indirect contact with each other, and that two or more elements or devices operate or act on each other.

As used herein, the terms "comprising," "including," "having," and the like are open-ended terms that mean including, but not limited to.

As used herein, the term (terms), unless otherwise indicated, shall generally have the ordinary meaning as commonly understood by one of ordinary skill in the art, in this written description and in the claims. Certain words used to describe the disclosure are discussed below or elsewhere in this specification to provide additional guidance to those skilled in the art in describing the disclosure.

Referring to fig. 1 to 3, a transformer having a cooling channel includes a housing 1 and a transformer body 2, the transformer body 2 is sealed in the housing 1, and the transformer body 2 includes a core 21 and a coil 22 wound around the core 21. In this embodiment, two sets of coils 22 are wound on the iron core 21, the two sets of coils 22 are disposed oppositely, a gap 23 is formed in the middle of the transformer body 2, and the gap 23 is located between the two sets of coils 22.

Preferably, the gap 23 on the transformer body 2 is located at the center of the transformer body 2. The gap 23 is generally referred to as an air gap in the legs of the transformer.

The transformer further comprises a channel pipe 3 arranged in the middle of the transformer main body 2, the channel pipe 3 is a linear pipeline, the channel pipe 3 penetrates through a gap 23 in the transformer main body 2 to penetrate through the transformer in the vertical direction, and two ends of the channel pipe 3 protrude out of the transformer. In the present embodiment, the passage tube 3 has a plurality of passages 31 arranged in parallel inside. The channel 31 is used for air, liquid or refrigerant to pass through, so that heat at the center of the transformer body 2 is taken out of the transformer body 2 through the channel pipe 3. In other embodiments, the passage tube 3 may have only one passage 31, and the number of passages 31 in the passage tube 3 is not limited herein.

Preferably, the channel tube 3 is an aluminum microchannel tube. The channel tube 3 may also be a micro-channel tube made of silver or other heat-conducting and non-magnetic materials, and the material used for the channel tube 3 is not limited in this embodiment. The use of an aluminum microchannel tube has the advantage of lower cost than the use of a silver microchannel tube. The eddy current between the transformer core 21 and the coil 22 is not affected while conducting heat by the arrangement of the aluminum microchannel tube.

Only one channel tube 3 can be placed in the gap 23 on the transformer main body 2, or a plurality of channel tubes 3 can be arranged in parallel, the more the number of the channel tubes 3 is, the better the heat dissipation effect is, and the number of the channel tubes 3 can be selectively set according to the heat dissipation heat required.

The two ends of the shell 1 corresponding to the channel tube 3 are both provided with through holes, the two ends of the channel tube 3 protrude out of the shell 1 through the through holes, and the channel tube 3 is fixedly connected with the through holes in a welding mode.

A fan is attached to one end of the passage pipe 3 to forcibly ventilate the passage pipe 3. One end of the channel tube 3 may also be connected to a cooling device such as a cooling liquid supply device or a cooling medium supply device, and the present embodiment does not limit the heat dissipation medium introduced into the channel tube 3.

To sum up, compared with the prior art, the utility model has the following advantages and effects:

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable people skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.

Claims

1. A transformer with a cooling channel comprises a shell (1) and a transformer main body (2), wherein the transformer main body (2) is sealed in the shell (1), the transformer main body (2) comprises an iron core (21) and a coil (22) wound on the iron core (21), and a gap (23) is formed in the middle of the transformer main body (2); the method is characterized in that:

the transformer further comprises a channel pipe (3) arranged in the middle of the transformer main body (2), the channel pipe (3) is a linear pipeline, the channel pipe (3) penetrates through a gap (23) in the transformer main body (2) to penetrate through the transformer in the vertical direction, and two ends of the channel pipe (3) protrude out of the transformer.

2. The transformer with cooling channels of claim 1, wherein: the gap (23) on the transformer main body (2) is positioned at the center of the transformer main body (2).

3. The transformer with cooling channels of claim 2, wherein: the iron core (21) is provided with two groups of coils (22) in a winding mode, the coils (22) are arranged oppositely, and the gap (23) is located between the coils (22).

4. The transformer with cooling channels of claim 1, wherein: the passage tube (3) has a plurality of passages (31) arranged in parallel inside.

5. The transformer with cooling channels of claim 1, wherein: the channel tube (3) is an aluminum micro-channel tube.

6. The transformer with cooling channels of claim 1, wherein: the two ends of the shell (1) corresponding to the channel pipe (3) are provided with through holes, and the two ends of the channel pipe (3) protrude out of the shell (1) through the through holes.

7. The transformer with cooling channels of claim 1, wherein: the channel pipes (3) are arranged in parallel.

8. The transformer with cooling channels of claim 1, wherein: one end of the channel pipe (3) is connected with a fan to forcibly ventilate the channel pipe (3).