WO2013159478A1

WO2013159478A1 - Device with radiator

Info

Publication number: WO2013159478A1
Application number: PCT/CN2012/080697
Authority: WO
Inventors: 蒙程飞; 韦建生; 程国胜; 陈恒留
Original assignee: 深圳市晶福源电子技术有限公司
Priority date: 2012-04-23
Filing date: 2012-08-29
Publication date: 2013-10-31
Also published as: CN202551603U

Abstract

Disclosed is a device with a radiator. The device includes a device body which is a transformer body or an inductor body. The device also includes a radiator (4) and two or more heat-conducting strips (2). One end of the heat-conducting strip (2) is fixed to the inner part of the device body, and the other end is connected with the radiator (4). With the present invention, a radiator can be provided at the outer part of a device, and the heat can be transferred to the outer radiator from the inner part of the device by the heat-conducting strip, thus it can be realized that heat is transferred to the outer part from the inner part. The radiating effect is good and the structure is simple.

Description

Device with heat sink

The utility model belongs to the field of electronic components, in particular to a device with a heat sink, the device being a transformer or an inductor.

Background technique

In the electronic equipment applied to the inductor and the transformer, since the inductor and the transformer generate a large amount of heat, it needs to be heat-dissipated. The general heat dissipation methods are as follows: one is air-cooled heat dissipation, the other is natural heat dissipation, and the third is The magnetic core is attached to the casing to dissipate heat. The above several ways can only dissipate heat from the core and the winding surface. The internal heat can only be radiated through the inductor body or the transformer body to the surface, due to the heat conduction of the inductor and the transformer body. Poor results can cause the inductor and the internal temperature of the transformer to overheat, causing the inductor and the transformer to overheat and burn out. Inductors and transformers using natural heat dissipation methods are generally limited to small and medium power devices, and cannot meet the heat dissipation of some high-power devices and transformers. Summary of the invention

The purpose of the utility model is to provide a device with a heat sink with high heat dissipation efficiency and simple and practical structure for the heat dissipation defects of the inductor and the transformer.

The object of the present invention is as follows: the utility model comprises a device body, the device body is a transformer body or an inductor body, and the utility model further comprises a heat sink and two or more heat conduction strips, one end of the heat conduction strip is fixed on the device The inside of the body has a fixed connection to the heat sink at the other end.

Preferably, the heat conducting strip and the heat sink are fixedly connected by screws, and a fixing hole is disposed on one end of the heat conducting strip and the heat sink. Preferably, the number of fixing holes on the heat conducting strip and the heat sink is two to several, and correspondingly, the number of the screws is two to several, so that the heat conducting strip and the heat sink are well connected. Preferably, a thermal conductive adhesive is disposed between the heat sink and the device body and between the heat conducting strip and the heat sink, which can increase the contact area and the heat conducting effect between them, thereby increasing the heat dissipation effect.

Preferably, one end of the heat conducting strip is closely attached to the winding of the transformer body or is closely adjacent to the winding of the inductor body and the magnetic core.

The technical effect of the utility model is: the utility model has a heat sink externally on the device, and the heat inside the device is guided to the outer heat sink through the heat conduction strip, thereby achieving the purpose of guiding the internal heat to the outside, and the heat dissipation effect Good, and the structure is simple.

DRAWINGS

Fig. 1 is a perspective view of an embodiment.

Figure 2 is a side view of the embodiment.

Figure 3 is a plan view of the embodiment.

detailed description

Referring to FIG. 1, FIG. 2 and FIG. 3, this embodiment is an inductor with a heat sink, comprising a device body (in this embodiment, an inductor body), two heat conducting strips 2, and a heat sink 4 located outside the inductor body; The heat sink 4 is mounted on the top of the magnetic core 101 of the device body, and two heat conducting strips 2 are located on both sides of the heat sink 4. One end of each of the heat conducting strips 2 is fixed inside the device body, and is closely attached to the winding 1 of the device body. Between the magnetic cores 101, a fixing hole is provided at the other end of each of the heat conducting strips 2, and correspondingly, a fixing hole is also provided on the heat sink 4, and the heat conducting strip 2 and the heat sink 4 are fixedly connected by the screw 3. The internal heat of the inductor is led out through the heat conducting strip 2, and the heat conducting strip 2 is further brought into contact with the heat sink 4 to finally dissipate heat through the heat sink 4. In order to increase the heat conduction effect, an appropriate thermal conductive adhesive can be added between the heat sink 4 and the heat conducting strip 2, the heat sink 4 and the device body, thereby increasing the contact area and the heat conducting effect between them, and simultaneously using the dowel 3 to heat the heat sink 4 It is tightly fixed with the heat-conducting strip 2 to provide a good heat dissipation effect. In the utility model, the heat conduction strip can be any heat conductive material, and the width dimension can be designed according to the magnetic core cross-sectional area of the inductor or the transformer. In the utility model, the heat sink can be designed according to the size of the core of the inductor or the transformer, and the length and height can be designed according to the heat dissipation amount.

The above embodiment takes an inductor as an example. If it is a transformer, the symbols 1 and 2 in Fig. 1 indicate a transformer, and the inner end of the heat conducting strip is closely attached to the transformer winding to derive the heat inside the transformer winding.

Claims

Claim

A device with a heat sink, comprising a device body, wherein the device body is a transformer body or an inductor body, and further comprising: a heat sink and two or more heat conducting strips, wherein one end of the heat conducting strip is fixed on the device body Inside, the other end is fixedly connected to the heat sink.

The device with a heat sink according to claim 1, wherein a fixing hole is formed on one end of the heat conducting strip and the heat sink, and the heat conducting strip and the heat sink are fixedly connected by screws.

The device with a heat sink according to claim 2, wherein: the fixing holes on the heat conducting strip and the heat sink are two to several, and correspondingly, the number of the screws is two to several.

The device with a heat sink according to claim 1 or 2 or 3, wherein a heat conductive paste is disposed between the heat sink and the device body and between the heat conducting strip and the heat sink.

The device with a heat sink according to claim 1 or 2 or 3, wherein: one end of the heat conducting strip is closely attached to the winding of the transformer body, or is closely attached to the winding and the magnetic core of the inductor body between.

6. The device with a heat sink according to claim 1 or 2 or 3, wherein: the heat sink is mounted on the top of the magnetic core of the inductor body.