CN217134144U

CN217134144U - High-efficient heat radiation structure of medium-high frequency transformer

Info

Publication number: CN217134144U
Application number: CN202123425386.5U
Authority: CN
Inventors: 杨瑞; 易志欣; 黄戌雪; 司道浩
Original assignee: SUZHOU TOPRUN ELECTRIC EQUIPMENT CO Ltd
Current assignee: SUZHOU TOPRUN ELECTRIC EQUIPMENT CO Ltd
Priority date: 2021-12-31
Filing date: 2021-12-31
Publication date: 2022-08-05
Anticipated expiration: 2031-12-31

Abstract

The utility model discloses a high-efficient heat radiation structure of medium-high frequency transformer, which comprises a housin, be fixed with the apron on the casing, fixed embedding has insulating cover on the apron, and the both sides of casing are all fixed the embedding and are had first heat-conducting plate, and the outside of first heat-conducting plate is fixed with the fin, scribbles the glue film that covers first heat-conducting plate on the inner wall of casing, is provided with the magnetic core in the casing, and the both ends of magnetic core are provided with the second heat-conducting plate respectively, and the inner wall contact of second heat-conducting plate and casing has the winding in the winding on the magnetic core, and winding and glue film contact set up. The utility model discloses this kind of application reduces the product volume by a wide margin, reduces weight, promotes heat dispersion, plays the effect that reduces the temperature rise, reduces the high-frequency transformer high temperature to the influence of the sensitive device of heat on every side, is convenient for plan overall arrangement and future miniaturized development.

Description

High-efficient heat radiation structure of medium-high frequency transformer

Technical Field

The utility model relates to a well high-frequency transformer technical field specifically is a high-efficient heat radiation structure of well high-frequency transformer.

Background

Medium-high frequency transformers have long been used in locomotive auxiliary converters, and the frequency of the transformer in the system is designed according to the power frequency (50 Hz).

Through natural cooling or air-cooled heat dissipation, bulky among this kind of application, weight is big, and the radiating effect is unsatisfactory, is not convenient for miniaturizing, modularization, standardized production.

In recent years, the power frequency is developing to medium and high frequency, the problems of space utilization rate, poor heat dissipation effect and the like are accompanied, the product structure is optimized, and diversified design is imperative.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a high-efficient heat radiation structure of medium-high frequency transformer to solve space utilization, the poor problem of radiating effect.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a high-efficient heat radiation structure of well high-frequency transformer, includes the casing, be fixed with the apron on the casing, fixed embedding has insulating cover on the apron, the both sides of casing are all fixed the embedding and are had first heat-conducting plate, the outside of first heat-conducting plate is fixed with the fin, scribble the glue film that covers first heat-conducting plate on the inner wall of casing, be provided with the magnetic core in the casing, the both ends of magnetic core are provided with the second heat-conducting plate respectively, the inner wall contact of second heat-conducting plate and casing, the winding has the winding on the magnetic core, the winding sets up with the contact of glue film.

Preferably, the first heat conduction plate, the fins and the second heat conduction plate are all made of aluminum alloy materials, and the heat conduction and heat dissipation effects are guaranteed.

Preferably, the adhesive layer is made of a high thermal conductive epoxy adhesive material, and can achieve a curing and potting effect.

Preferably, the magnetic core is made of ferrite materials, and can generate magnetism through good electrification.

Preferably, the winding is made of copper foil material, a set of turns of the electrical circuit corresponding to a certain voltage value noted by the transformer.

Preferably, the magnetic core is formed by combining three layers of structures, so that the second heat conduction plate can be conveniently combined.

Preferably, the second heat conduction plate is of an L-shaped structure, is distributed with the three layers of magnetic cores in a staggered mode, and is uniformly distributed in parallel after passing through a sandwich single-winding method.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses this kind of use reduces the product volume by a wide margin, reduces weight, promotes heat dispersion, plays the effect that reduces the temperature rise.

2. The utility model discloses reduce the influence of high frequency transformer high temperature to thermosensitive device on every side, be convenient for plan the overall arrangement and future miniaturized development.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic top view of the housing of the present invention;

FIG. 3 is a schematic diagram of the second heat conducting plate and the magnetic core in a staggered arrangement;

fig. 4 is a schematic side view of the second heat-conducting plate and the magnetic core of the present invention.

In the figure: 1. a housing; 11. a cover plate; 12. an insulating sleeve; 13. a first heat-conducting plate; 14. a fin; 15. a glue layer; 16. a magnetic core; 17. a second heat-conducting plate; 18. and (4) winding.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example I

Please refer to fig. 1, a high-efficiency heat dissipation structure for a medium-high frequency transformer, which includes a casing 1, a cover plate 11 is fixed on the casing 1, an insulating sleeve 12 is fixed on the cover plate 11, a first heat conduction plate 13 is fixed on both sides of the casing 1, fins 14 are fixed on the outer side of the first heat conduction plate 13, a glue layer 15 covering the first heat conduction plate 13 is coated on the inner wall of the casing 1, a magnetic core 16 is disposed in the casing 1, second heat conduction plates 17 are respectively disposed on both ends of the magnetic core 16, the second heat conduction plates 17 are in contact with the inner wall of the casing 1, a winding 18 is wound on the magnetic core 16, and the winding 18 is in contact with the glue layer 15.

Referring to fig. 2, the first heat-conducting plate 13, the fins 14 and the second heat-conducting plate 17 are made of aluminum alloy material, so as to ensure heat-conducting and heat-dissipating effects.

This embodiment is used: the heat conduction plate structure can realize the heat conduction in the shell 1.

Example II

Referring to fig. 1, in this embodiment, as further described in embodiment 1, a high-efficiency heat dissipation structure for a medium-high frequency transformer includes a casing 1, a cover plate 11 is fixed on the casing 1, an insulating sleeve 12 is fixed on the cover plate 11, first heat conducting plates 13 are fixed on both sides of the casing 1, fins 14 are fixed on outer sides of the first heat conducting plates 13, an adhesive layer 15 covering the first heat conducting plates 13 is coated on an inner wall of the casing 1, a magnetic core 16 is disposed in the casing 1, second heat conducting plates 17 are respectively disposed at both ends of the magnetic core 16, the second heat conducting plates 17 are in contact with the inner wall of the casing 1, a winding 18 is wound on the magnetic core 16, and the winding 18 is in contact with the adhesive layer 15.

Referring to fig. 2, the magnetic core 16 is formed by combining three layers, which facilitates the combination of the second heat-conducting plate 17.

Referring to fig. 2, the second heat-conducting plate 17 is an L-shaped structure, and is distributed with the three-layered magnetic core 16 in a staggered manner, and is uniformly connected in parallel after passing through a "sandwich" single-winding method.

This embodiment is used: the assembly structure of staggered overlapping distribution is adopted, and the heat dissipation effect of the magnetic core 16 can be improved.

Example III

Referring to fig. 1, 2, 3 and 4, the present embodiment further illustrates another embodiment, and a high-frequency transformer with a high-efficiency heat dissipation structure includes a casing 1, a cover plate 11 is fixed on the casing 1, an insulating sleeve 12 is fixed on the cover plate 11, a first heat conduction plate 13 is fixed on both sides of the casing 1, fins 14 are fixed on the outer side of the first heat conduction plate 13, a glue layer 15 covering the first heat conduction plate 13 is coated on the inner wall of the casing 1, a magnetic core 16 is disposed in the casing 1, second heat conduction plates 17 are disposed on both ends of the magnetic core 16, the second heat conduction plates 17 contact the inner wall of the casing 1, windings 18 are wound on the magnetic core 16, and the windings 18 are disposed in contact with the glue layer 15.

Referring to fig. 2, the adhesive layer 15 is made of a high thermal conductive epoxy material, and can perform a curing and potting effect.

Referring to fig. 2, the magnetic core 16 is made of ferrite material, which can generate magnetism well when energized.

Referring to fig. 2, the winding 18 is made of copper foil material and corresponds to a set of turns of the electrical circuit at a certain voltage level indicated by the transformer.

This embodiment is used: the magnetic core 16 is a novel ferrite material, the high-frequency loss is lower than that of a conventional material, the winding 18 is a copper foil with low thickness, the influence of the skin effect is reduced, and the magnetic core is equally divided in parallel after being subjected to a sandwich single-winding method. The high-heat-conduction epoxy glue is cured and encapsulated in the shell 1 and covers the first heat conduction plate 13, and when the high-heat-conduction epoxy glue is used, air is blown by a fan to greatly take away heat of the shell 1 through the fins 14.

The application greatly reduces the volume of the product, reduces the weight, improves the heat dissipation performance, plays a role in reducing the temperature rise, reduces the influence of the high temperature of the high-frequency transformer on surrounding thermosensitive devices, and is convenient for planning the layout and the future miniaturization development.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a high-efficient heat radiation structure of medium-high frequency transformer, includes casing (1), its characterized in that: be fixed with apron (11) on casing (1), the fixed embedding has insulating cover (12) on apron (11), the both sides of casing (1) are all fixed the embedding and have first heat-conducting plate (13), the outside of first heat-conducting plate (13) is fixed with fin (14), glue film (15) that cover first heat-conducting plate (13) have been paintd on the inner wall of casing (1), be provided with magnetic core (16) in casing (1), the both ends of magnetic core (16) are provided with second heat-conducting plate (17) respectively, the inner wall contact of second heat-conducting plate (17) and casing (1), the winding has winding (18) on magnetic core (16), winding (18) and glue film (15) contact setting.

2. The efficient heat dissipation structure of the medium-high frequency transformer according to claim 1, wherein: the first heat conduction plate (13), the fins (14) and the second heat conduction plate (17) are all made of aluminum alloy materials.

3. The efficient heat dissipation structure of the medium-high frequency transformer according to claim 1, wherein: the adhesive layer (15) is made of high-thermal-conductivity epoxy glue materials.

4. The efficient heat dissipation structure of the medium-high frequency transformer according to claim 1, wherein: the magnetic core (16) is made of ferrite material.

5. The efficient heat dissipation structure of the medium-high frequency transformer according to claim 1, wherein: the winding (18) is made of a copper foil material.

6. The efficient heat dissipation structure of the medium-high frequency transformer according to claim 1, wherein: the magnetic core (16) is formed by combining three layers of structures.

7. The efficient heat dissipation structure of the medium-high frequency transformer as recited in claim 6, wherein: the second heat conducting plate (17) is of an L-shaped structure and is distributed with the three layers of magnetic cores (16) in a staggered mode.