CN210575392U

CN210575392U - Flat-plate transformer with heat dissipation base

Info

Publication number: CN210575392U
Application number: CN201921118374.8U
Authority: CN
Inventors: 周才荣
Original assignee: Huizhou Banqiao Electronic Co Ltd
Current assignee: Huizhou Banqiao Electronic Co Ltd
Priority date: 2019-07-16
Filing date: 2019-07-16
Publication date: 2020-05-19
Anticipated expiration: 2029-07-16

Abstract

The utility model discloses a flat-plate transformer with heat dissipation base, including base, magnetic core and winding, the winding is in the outside of magnetic core, and the magnetic core is installed on the base, and the base includes first square plate, second square plate, pin, square seat, first fin, second fin, fin and square column. This planar transformer with heat dissipation base, the base not only is used for can also be convenient for the heat dissipation to the support of magnetic core, guarantee the radiating effect of whole transformer, the square seat couples together first square board and second square board, be provided with alternate distribution's second fin and first fin in the inner chamber of first square board and second square board, first fin all is wavy with the second fin, increase the cooling surface like this, the heat dissipation efficiency is improved, the square column adopts interference fit's mode to connect first square board, when connecting closely, first square board can in time transmit the heat to the second square board through the square seat, be convenient for holistic heat dissipation.

Description

Flat-plate transformer with heat dissipation base

Technical Field

The utility model relates to a transformer technical field specifically is a planar transformer with heat dissipation base.

Background

The planar transformer is the biggest difference compared with the traditional transformer in the iron core and the coil winding. The planar transformer adopts small-sized E-type, RM-type or annular ferrite cores, is usually made of high-frequency power ferrite materials, and has lower core loss at high frequency; the winding is formed by winding a plurality of layers of printed circuit boards, and the winding or copper sheets are overlapped on the planar high-frequency iron core to form a magnetic loop of the transformer. The design has low direct current copper resistance, low leakage inductance and distributed capacitance, and can meet the design requirements of the resonant circuit. And because of the good magnetic shielding of the magnetic core, the radio frequency interference can be inhibited. But the base structure of the existing flat-plate transformer is single, only can play a supporting role, and does not have a good heat dissipation effect.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a flat-plate transformer with heat dissipation base possesses the good advantage of radiating effect, can solve the problem among the prior art.

In order to achieve the above object, the utility model provides a following technical scheme: a flat-plate transformer with a heat dissipation base comprises a base, a magnetic core and a winding, wherein the winding is wound on the outer side of the magnetic core, the magnetic core is installed on the base, the base comprises a first square plate, a second square plate, pins, a square seat, a first fin, a second fin, a heat dissipation sheet and square columns, the pins are installed at the edges of the top surfaces of two ends of the first square plate, the top surface center of the first square plate is fixedly connected with the magnetic core, the first fin is installed at the bottom surface of the first square plate, the first square plate is located right above the second square plate, the square seat and the second fin are installed on the second square plate, the square seat is located at four corners of the second fin, the bottom end of the square seat is fixedly connected with the second square plate, the square columns are fixed at the top end center of the square seat, the square columns are connected with the first square plate in an interference fit mode, the heat dissipation sheet is laid on the upper surface of the first square, the outer wall department of winding installs the heat conduction cover, and the both ends contact of heat conduction cover is connected first square plate.

Preferably, the first fins and the second fins are both wavy, and the second fins laid on the upper surface of the second square plate and the first fins laid on the bottom surface of the first square plate are alternately distributed.

Preferably, the center of the radiating fin is provided with a round hole, and the upper surface layer and the lower surface layer of the radiating fin are provided with air leakage grooves which are uniformly distributed.

Preferably, four corners of the bottom surface of the first square plate are provided with limit grooves matched with the square columns.

Preferably, the top surface of the square seat is in contact with the bottom surface of the first square plate.

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

this planar transformer with heat dissipation base, the base not only is used for the support to the magnetic core and can also be convenient for dispel the heat, guarantee the radiating effect of whole transformer, wherein the bottom surface department of first square plate installs first fin, install square seat and second fin on the second square plate, the square seat couples together first square plate and second square plate, be provided with second fin and the first fin of alternative distribution in the inner chamber of first square plate and second square plate, first fin all is the wave form with the second fin, increase the cooling surface like this, the heat dissipation efficiency is improved, the square column adopts interference fit's mode to connect first square plate, when connecting closely, first square plate can in time transmit the heat to the second square plate through the square seat, be convenient for holistic heat dissipation.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present invention;

FIG. 2 is a schematic view of the base structure of the present invention;

FIG. 3 is a schematic view of the square base structure of the present invention;

fig. 4 is a schematic structural view of a second square plate of the present invention.

In the figure: 1. a base; 11. a first square plate; 12. a second square plate; 13. a pin; 14. a square base; 15. a first fin; 16. a second fin; 17. a heat sink; 18. a square column; 2. a magnetic core; 3. a winding; 4. a heat conducting shield.

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.

Referring to fig. 1-4, a planar transformer with a heat dissipation base includes a base 1, a magnetic core 2 and a winding 3, the winding 3 is wound outside the magnetic core 2, the magnetic core 2 is mounted on the base 1, the base 1 is not only used for supporting the magnetic core 2, but also can facilitate heat dissipation and ensure the heat dissipation effect of the whole transformer, the base 1 includes a first square plate 11, a second square plate 12, pins 13, a square seat 14, first fins 15, second fins 16, heat sinks 17 and square columns 18, the pins 13 are mounted at the top surface edges of the two ends of the first square plate 11, the pins 13 are used for connecting the winding 3, the top surface center of the first square plate 11 is fixedly connected with the magnetic core 2, i.e. the magnetic core 2 is mounted on the first square plate 11, the first fins 15 are mounted at the bottom surface of the first square plate 11, the first fins 15 are used for heat dissipation, the first fins 15 increase the heat dissipation area of the first square plate 11, the first square plate 11 is positioned right above the second square plate 12, the appearance is attractive and elegant, the second square plate 12 is provided with a square seat 14 and second fins 16, the square seat 14 is positioned at four corners of the second fins 16, the square seat 14 connects the first square plate 11 with the second square plate 12, the first fins 15 and the second fins 16 are both in a wavy shape, so that the heat dissipation surface is increased, the heat dissipation efficiency is improved, the second fins 16 laid on the upper surface of the second square plate 12 and the first fins 15 laid on the bottom surface of the first square plate 11 are alternately distributed, wherein the first fins 15 and the second fins 16 are uniformly arranged in the inner cavities of the first square plate 11 and the second square plate 12, the heat dissipation effect is ensured, the bottom end of the square seat 14 is fixedly connected with the second square plate 12, the top center of the square seat 14 is fixedly provided with a square column 18, the square column 18 is connected with the first square plate 11 in an interference fit manner, and the top surface of the square seat 14 is contacted with the bottom surface of the first square plate 11, when square column 18 inserts 11 bottom surfaces of first square plate,

square seat

14 and 11 contacts of first square plate, first square plate 11 can pass through square seat 14 with the heat and transmit second square plate 12 like this, four edges of the bottom surface of first square plate 11 have seted up the spacing groove with square column 18 matched with, the installation of being convenient for like this, fin 17 has been laid to the upper surface of first square plate 11, fin 17 plays the effect of transmitting the heat, the round hole has been seted up to the center department of fin 17, evenly distributed's hourglass wind groove has all been seted up on the upper and lower top layer of fin 17, just with the heat dissipation, fin 17 contacts the bottom of winding 3, heat conduction cover 4 is installed to the outer wall department of winding 3, first square plate 11 is connected in the both ends contact of heat conduction cover 4.

The flat-plate transformer with the heat dissipation base comprises a base 1, a magnetic core 2 and a winding 3, wherein the winding 3 is wound on the outer side of the magnetic core 2, the magnetic core 2 is arranged on the base 1, the base 1 is not only used for supporting the magnetic core 2, but also can facilitate heat dissipation and ensure the heat dissipation effect of the whole transformer, the base 1 comprises a first square plate 11, a second square plate 12, pins 13, a square seat 14, first fins 15, second fins 16, a heat dissipation fin 17 and square columns 18, the first fins 15 are arranged at the bottom surface of the first square plate 11, the square seat 14 and the second fins 16 are arranged on the second square plate 12, the square seat 14 is positioned at four corners, the square seat 14 connects the first square plate 11 with the second square plate 12, wherein the second fins 16 and the first fins 15 which are alternately distributed are arranged in inner cavities of the first square plate 11 and the second square plate 12, and the first fins 15 and the second fins 16 are both in a wavy shape, increase the cooling surface like this, improve the radiating efficiency, first square plate 11 is connected to square column 18 adoption interference fit's mode, connects inseparable in the time, and first square plate 11 can in time transmit the second square plate 12 with the heat through square seat 14, and the holistic heat dissipation of being convenient for, and fin 17 has been laid to the upper surface of first square plate 11, and heat conduction cover 4 is installed to the outer wall department of winding 3, and first square plate 11 is connected in the both ends contact of heat conduction cover 4.

In summary, the following steps: this planar transformer with heat dissipation base, base 1 not only is used for the support to magnetic core 2 can also be convenient for dispel the heat, guarantee the radiating effect of whole transformer, wherein first fin 15 is installed to the bottom surface department of first square plate 11, install square seat 14 and second fin 16 on the second square plate 12, square seat 14 couples together first square plate 11 and second square plate 12, be provided with second fin 16 and first fin 15 that distribute in turn in the inner chamber of first square plate 11 and second square plate 12, first fin 15 all is wavy with second fin 16, increase the radiating surface like this, improve the radiating efficiency, square column 18 adopts interference fit's mode to connect first square plate 11, when connecting closely, first square plate 11 can in time transmit the heat to second square plate 12 through square seat 14, be convenient for holistic heat dissipation.

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 planar transformer with heat dissipation base, includes base (1), magnetic core (2) and winding (3), its characterized in that: the winding (3) is wound on the outer side of the magnetic core (2), the magnetic core (2) is installed on the base (1), the base (1) comprises a first square plate (11), a second square plate (12), pins (13), a square seat (14), first fins (15), second fins (16), radiating fins (17) and square columns (18), the pins (13) are installed at the edges of the top surfaces of the two ends of the first square plate (11), the top surface center of the first square plate (11) is fixedly connected with the magnetic core (2), the first fins (15) are installed at the bottom surface of the first square plate (11), the first square plate (11) is located right above the second square plate (12), the square seat (14) and the second fins (16) are installed on the second square plate (12), the square seat (14) is located at the four corners of the second fins (16), the bottom end of the square seat (14) is fixedly connected with the second square plate (12), and the square columns (18) are fixed at the center of the top end of the square seat (14), first square plate (11) is connected in square column (18) adoption interference fit's mode, and fin (17) have been laid to the upper surface of first square plate (11), fin (17) contact winding (3)'s bottom, and heat conduction cover (4) are installed to the outer wall department of winding (3), and first square plate (11) is connected in the both ends contact of heat conduction cover (4).

2. The planar transformer with the heat dissipation base as set forth in claim 1, wherein: the first fins (15) and the second fins (16) are both wavy, and the second fins (16) laid on the upper surface of the second square plate (12) and the first fins (15) laid on the bottom surface of the first square plate (11) are alternately distributed.

3. The planar transformer with the heat dissipation base as set forth in claim 1, wherein: the center of the radiating fin (17) is provided with a round hole, and the upper surface layer and the lower surface layer of the radiating fin (17) are provided with air leakage grooves which are uniformly distributed.

4. The planar transformer with the heat dissipation base as set forth in claim 1, wherein: and four corners of the bottom surface of the first square plate (11) are provided with limit grooves matched with the square columns (18).

5. The planar transformer with the heat dissipation base as set forth in claim 1, wherein: the top surface of the square seat (14) is contacted with the bottom surface of the first square plate (11).