CN202603135U

CN202603135U - Closed type radiating fin structure

Info

Publication number: CN202603135U
Application number: CN 201220265625
Authority: CN
Inventors: 邱胜彦; 易亚东; 陈文吉
Original assignee: Silitek Electronic Guangzhou Co Ltd; Lite On Technology Corp
Current assignee: Lite On Technology Changzhou Co Ltd
Priority date: 2012-05-29
Filing date: 2012-05-29
Publication date: 2012-12-12
Anticipated expiration: 2022-05-29

Abstract

The utility model provides a closed type radiating fin structure which is installed on a heat source surface. The closed type cooling fin structure is characterized by comprising a heat conducting substrate and a radiating fin, wherein the heat conducting substrate is a vertical through hollow cylinder, and any side vertical surface of the hollow cylinder directly contacts with the heat source surface. The radiating fin extends from the side vertical surface into the hollow cylinder, the connection position of the radiating fin and the heat conducting substrate directly contacts with the heat source surface, and the long side edge of the radiating fin is parallel to the long side edge of the heat conducting substrate. According to the closed type radiating fin structure, by means of a chimney effect and the radiating fin added to the middle of the radiating fin structure, radiating effects of the closed type radiating fin are effectively improved, and the closed type radiating fin structure is simple in structure, good in radiating effects, small in occupied space and capable of meeting requirements of more and more smaller electronic products.

Description

Closed heat radiating fin structure

Technical field

The utility model relates to a kind of closed heat radiating fin structure, utilizes natural convection air to improve the closed heat radiating fin structure of heat dissipation in particularly a kind of electronic installation.

Background technology

In electronic product,, can be chosen in the discharging that increases the unnecessary used heat of radiating fin accelerated electron assembly on the heating crystal usually in order to improve the heat dissipation of electronic building brick.But along with electronic installation (for example: consumed power power supply unit), compact in size and electronic building brick densification; And the specific waste heat that electronic building brick produced can only be got rid of by the free convection mode, and general fin heat radiating fin structure can't satisfy the more and more littler space requirement of electronic product.

Therefore, the utility model need improve and innovates prior art, and the mode of the cross-ventilation efficient through quickening closed fin is with the not good defective of radiating effect of the closed fin that solves little space or small size.

The utility model content

The technical problem that the utility model will solve provides a kind of heat radiating fin structure, to solve the not good technical problem of radiating effect of little space or the closed fin of small size.

For achieving the above object, the utility model provides a kind of closed heat radiating fin structure, is installed in thermal source surface, to satisfy the demand of little space of electronic product or small size, it is characterized in that, comprises a heat conduction substrate and a radiating fin.Wherein, said heat conduction substrate is the hollow cylinder that connects of a setting, and the either side facade of said hollow cylinder directly touches said thermal source surface.Said radiating fin is internally extended to said hollow cylinder by said side elevation, and the position that said radiating fin is connected with said heat conduction substrate directly contacts with said thermal source surface, and the long side of radiating fin is parallel with the long side of said heat conduction substrate.

Preferably, said heat conduction substrate is shaped as square cylinder.

Preferably, said radiating fin is that aluminum material or other Heat Conduction Materials are processed, and this radiating fin can also be the cavity that inside is packaged with water, alcohol or other organic solvents.

Preferably, the horizontal profile shape of said radiating fin is T type shape.

Preferably, the horizontal profile shape of said radiating fin is Y type shape.

The utility model is through utilizing stack effect; At the inner passage that can connect that forms of heat radiating fin structure; To promote in fin simultaneously, in the middle of heat radiating fin structure, to add a radiating fin because of the air flow that temperature contrast was produced; Increasing the heat transfer area of fin, thereby reach the radiating effect of the closed fin of effective raising.The closed heat radiating fin structure of the utility model is not only simple in structure, have preferable radiating effect, and it takes up room less, has satisfied the more and more littler demand of electronic product especially.

Description of drawings

Fig. 1 is the stereogram of the utility model first preferred embodiment.

Fig. 2 is the profile of Fig. 1.

Fig. 3 is the profile of the utility model second preferred embodiment.

Fig. 4 is the profile of the utility model the 3rd preferred embodiment.

Embodiment

Fig. 1 is the stereogram of the utility model first preferred embodiment.Referring to Fig. 1, the closed heat radiating fin structure of the utility model first preferred embodiment comprises a heat conduction substrate 10 and a radiating fin 20.Wherein, Said heat conduction substrate 10 is the hollow cylinder that connects of a setting; The either side facade 101 of this hollow cylinder 10 contacts with the thermal source surface; And said radiating fin 20 is to be internally extended to this hollow cylinder 10 by said side elevation 101, and the position that makes said radiating fin 20 be connected with said heat conduction substrate 10 directly contacts with said thermal source surface.The long side of said radiating fin 20 is parallel with the long side of said heat conduction substrate 10, sees from the end face of this hollow cylinder 10, that is as shown in Figure 2.

Fig. 2 is the profile of the utility model first preferred embodiment; Referring to Fig. 2; In the present embodiment; The width of said radiating fin 20 is not limited to be equal to or less than said heat conduction substrate 10 width, also can be set to greater than said heat conduction substrate 10 width half according to actual needs, and is perhaps long together with the width of said heat conduction substrate 10.

The shape of said heat conduction substrate 10 is not limited to square body, can be set to cylinder as required, perhaps the cylinder of other shapes.Said radiating fin 20 can be aluminum material or other Heat Conduction Materials are processed, and radiating fin 20 can also be packaged with the cavity of water, alcohol or other organic solvents for inside.

Fig. 3 is the profile of second preferred embodiment of the utility model, referring to Fig. 3.It has illustrated second preferred embodiments of the utility model, and what they were different with first preferred embodiment is that the end edge of the said radiating fin 20a direction vertical with this radiating fin extended a side 201a.See that from the end face of hollow cylinder the section of said radiating fin 20a is the T word shape.

Fig. 4 is the profile of the 3rd preferred embodiment of the utility model, referring to Fig. 4.It has illustrated the 3rd preferred embodiments of the utility model; What they were different with first and second preferred embodiments is; The end edge of the said radiating fin 20b direction vertical with this radiating fin extended a side 201b, and the two ends of this side 201b respectively on the perpendicular direction to extend one first support arm 202b and one second support arm 203b away from side elevation 101b direction.See that from the end face of hollow cylinder the section of said radiating fin 20b is the Y word shape.

In the utility model, 2 said radiating fins 20 also can be set, or said radiating fin 20 is set to other shapes, to increase the heat transfer area of radiating fin, also belong to the category of the utility model.

The utility model is through utilizing stack effect; At the inner passage that can connect that forms of heat radiating fin structure; To promote in fin simultaneously, in the middle of heat radiating fin structure, to add a radiating fin because of the air flow that temperature contrast was produced; Increasing the heat transfer area of fin, thereby reach the radiating effect of the closed fin of effective raising.

The preferred embodiment that the above is merely the utility model is not the practical range that is used for limiting the utility model; Every equivalence of doing according to the utility model changes and revises, and is all contained by the claim of the utility model.

Claims

1. a closed heat radiating fin structure is installed in thermal source surface, comprising:

One heat conduction substrate, the hollow cylinder of said heat conduction substrate for connecting, and the either side facade of this hollow cylinder directly touches said thermal source surface;

One radiating fin; Said radiating fin is internally extended to said hollow cylinder by said side elevation; The position that said radiating fin is connected with said heat conduction substrate directly contacts with said thermal source surface, and the long side of said radiating fin is parallel with the long side of said heat conduction substrate.

2. closed heat radiating fin structure as claimed in claim 1 is characterized in that, said heat conduction substrate be shaped as square cylinder.

3. closed heat radiating fin structure as claimed in claim 1 is characterized in that, said radiating fin is that aluminum material or other Heat Conduction Materials are processed.

4. closed heat radiating fin structure as claimed in claim 3 is characterized in that, said radiating fin is the inner cavity that is packaged with water, alcohol or other organic solvents.

5. closed heat radiating fin structure as claimed in claim 1 is characterized in that, the horizontal profile shape of said radiating fin is T type shape.

6. closed heat radiating fin structure as claimed in claim 1 is characterized in that, the horizontal profile shape of said radiating fin is Y type shape.