HEAT DISSIPATION DEVICE WITH FAN
A heat dissipation device includes a bracket, a fan with an air inlet and an air outlet, and a heat sink mounted on the bracket. The bracket includes a plurality of rivets and clasps. Each of the clasps includes a mounting portion, an arm extending upwards from the mounting portion, and a hook portion extending from a top end of the arm and towards the mounting portion. The mounting portion is riveted on the bracket by a corresponding rivet. The fan includes a plurality of ears corresponding to the clasps. The hook portions of the clasps abut on top surfaces of the ears to fix the fan on the bracket. The fan defines a plurality of channels communicating the outlet of the fan.
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1. Technical Field
The disclosure relates to heat dissipation devices in electronics, and more particularly to a heat dissipation device with a centrifugal fan capable of being conveniently assembled to and disassembled from a bracket.
2. Description of Related Art
A heat sink is usually placed in thermal contact with a heat generating electronic device such as a central processing unit (CPU), and transfers heat through conduction away from the heat generating electronic device so as to prevent over-heating of the heat generating electronic device.
Typically, a centrifugal fan is mounted on a side of a heat sink to improve heat dissipation efficiency of the heat sink. In a conventional assembling method, the fan is locked onto the heat sink by screws interferentially engaged with fins of the heat sink. However, the previously mentioned assembling method requires screws and a screwdriver to perform these procedures. As known by those skilled persons, the conventional method wastes time and manpower.
What is needed, therefore, is a heat dissipation device which can overcome the limitations described.
Many aspects of the present embodiments can be better understood with reference to the following drawings. The components in the drawings are not necessarily drawn to scale, the emphasis instead being placed upon clearly illustrating the principles of the present embodiments. Moreover, in the drawings, like reference numerals designate corresponding parts throughout the several views.
Referring to
Referring to
The fan 20 is mounted on the bottom plate 11 and covers the circular opening 14. The fan 20 is a centrifugal fan with an air outlet 22 facing the heat sink 30 and two air inlets 23 vertical to the air outlet 22. The fan 20 forms two ears 21 at a periphery thereof. Each of the ears 21 defines a through hole 211.
The heat sink 30 includes a heat absorbing plate 31 and a fin set 32 mounted on the heat absorbing plate 31. The heat absorbing plate 31 can be a vapor chamber. The heat absorbing plate 31 is received in the window 15, supported by the steps 15 and blocked by the projections 152. The heat absorbing plate 31 is used to thermally contact the electronic component to absorb heat generated by the electronic component. The fin set 32 defines a plurality of channels (not labeled) communicating the air outlet 22 of the fan 20. The fin set 32 dissipates the heat transferred from the heat absorbing plate 31 into the channels, the heat then is brought by airflow generated by the fan 20.
Referring to
Referring to
It is to be understood, however, that even though numerous characteristics and advantages of certain embodiments have been set forth in the foregoing description, together with details of the structures and functions of the embodiments, the disclosure is illustrative only, and changes may be made in detail, especially in matters of shape, size, and arrangement of parts within the principles of the disclosure to the full extent indicated by the broad general meaning of the terms in which the appended claims are expressed.
Claims
1. A heat dissipation device comprising:
- a bracket comprising a plurality of rivets and clasps, each of the clasps comprising a mounting portion, an arm extending upwards from the mounting portion, and a hook portion extending from a top end of the arm and towards the mounting portion, the mounting portion being riveted on the bracket by the corresponding rivet;
- a fan having an air inlet and an air outlet, the fan comprising a plurality of ears corresponding to the clasps, the hook portions of the clasps abutting on top surfaces of the ears to fix the fan on the bracket; and
- a heat sink mounted on the bracket and having a plurality of channels communicating the air outlet of the fan.
2. The heat dissipation device of claim 1, wherein each of the ears defines a through hole, the bracket comprising a plurality of orientating members each extending in the through hole of a corresponding ear.
3. The heat dissipation device of claim 2, wherein each of the orientating members comprising a circular base contacting a bottom of the corresponding ear and a pin extending from a top end of the circular base and in a corresponding through hole of the corresponding ear.
4. The heat dissipation device of claim 2, wherein the bracket comprises a plurality of position blocks, each of the position blocks being spaced from the corresponding rivet and abutting against the arm of the corresponding clasp.
5. The heat dissipation device of claim 4, wherein the bracket, the rivets, the position blocks and the orientating members are integrally made of metal.
6. The heat dissipation device of claim 4, wherein the bracket is made of plastic material, and the rivets, the position blocks and the orientating members are integrally made of metal with bottoms embedded in the bracket.
7. The heat dissipation device of claim 1, wherein the bracket comprises a bottom plate and two side plates extending upwards from opposite edges of the bottom plate, two air guiding plates inwards extending from inner sides of the side plates from the fan to the heat sink.
8. The heat dissipation device of claim 7, wherein the bottom plate defines an opening communicating the air inlet of the fan and a window receiving the heat sink, the opening and the window being defined at two sides of the air guiding plates.
9. A heat dissipation device comprising:
- a bracket comprising a plurality of rivets, clasps, and orientating members, each of orientating member being spaced from and adjoined to one corresponding rivet, each of the clasps being riveted on the bracket by the corresponding rivet; and
- a centrifugal fan having an air inlet and an air outlet, the fan comprising a plurality of ears corresponding to the clasps, the clasps abutting on top surfaces of the ears to fix the fan on the bracket.
10. The heat dissipation device of claim 9, wherein each of the orientating members comprising a circular base contacting a bottom of a corresponding ear and a pin extending from a top end of the circular base and in a corresponding through hole of the corresponding ear.
11. The heat dissipation device of claim 9, wherein the bracket comprises a plurality of position blocks, each of the position blocks being spaced from the corresponding rivet and abutting against a corresponding clasp.
12. The heat dissipation device of claim 11, wherein the bracket, the rivets, the position blocks and the orientating members are integrally made of metal.
13. The heat dissipation device of claim 11, wherein the bracket is made of plastic material, and the rivets, the position blocks and the orientating members are integrally made of metal with bottoms embedded in the bracket.
Type: Application
Filed: Apr 28, 2012
Publication Date: Jun 20, 2013
Applicant: Foxconn Technology Co., Ltd. (Tu-Cheng)
Inventors: Shih-Yao LI (Tu-Cheng), Jui-Wen HUNG (Tu-Cheng), Ching-Bai HWANG (Tu-Cheng), Wei-Jen HUANG (Tu-Cheng)
Application Number: 13/459,095
International Classification: F28D 15/00 (20060101);