US20090223652A1

US20090223652A1 - Heat dissipating module

Info

Publication number: US20090223652A1
Application number: US12/266,541
Authority: US
Inventors: Hsiang-Chih Lee
Original assignee: Pegatron Corp
Current assignee: Pegatron Corp
Priority date: 2008-03-06
Filing date: 2008-11-06
Publication date: 2009-09-10
Also published as: TW200939001A

Abstract

A heat dissipating module includes a case, a fan, a heat dissipating part, at least one first fastening device, and a dust removal device. The case has a first air opening and a second air opening. The fan is installed in the case, and it is used to guide an air flow through the first air opening and the second air opening. The heat dissipating part is located at the second air opening. The first fastening device is located at the second air opening and disposed between the case and the heat dissipating part. The dust removal device has a side arm, and the side arm has a second fastening device that is capable of attaching to and detaching from the first fastening device.

Description

BACKGROUND OF THE INVENTION

1. Field of the Invention
The invention relates to a heat dissipating module and, more particularly, to a heat dissipating module.
2. Description of the Related Art
With the progress of the electronic science and technology, functions of an electronic product become more and more complicated and powerful. The operating speed of an internal microprocessor of the electronic product should become quicker and quicker to deal with heavy system operating workloads. However, when the operating speed of the microprocessor continuously increases, heat generated in the operating process also continuously increases. Therefore, when manufacturers design the electronic product, heat dissipation should be considered.
As far as a notebook computer is considered, since it is light, slim, short, small, and portable, internal components are generally arranged closely. Thus, heat generated by each component (in particular, a central processing unit) accumulates quickly. The heat dissipation problem is not well dealt with, the system may be down, and the internal components may even be burned. Therefore, the heat dissipation efficiency has a crucial effect on the performance of the notebook computer.
Generally speaking, in the notebook computer, a combination of a fan and a heat dissipating part is used on an electronic component whose heat needs to be dissipated such as a central processing unit to achieve heat dissipation. FIG. 1 is a schematic diagram of a conventional heat dissipating module 10. As shown in FIG. 1, the heat dissipating module 10 includes a case 12, a fan 14, a locking device 15, a heat dissipating part 16, and a filter structure 17. The case 12 has an air outlet 18. The fan 14 is installed in the case 12. The locking device 15 is used to dispose the filter structure 17 on the case 12. The heat dissipating part 16 is located at the air outlet 18, and the heat dissipating part 16 has parallel dissipating fins 20. When the electronic component operates to generate heat, the heat dissipating module 10 drives air to flow to the air outlet 18 by the rotation of the fan 14 and quickly dissipates the heat generated from the electronic component by heat conduction of the heat dissipating part 16. Since airflow generated in the heat dissipation process may drive internal dust, dust is accumulated on the heat dissipating part 16 after the notebook computer has operated for a long time. That is, much dust adheres to the heat dissipating fins 20 of the heat dissipating part 16, which reduces heat dissipation of the heat dissipating module 10. To improve the above situation, the heat dissipating part 16 may be detached directly to remove dust, or the locking device 15 may be utilized to dispose the filter structure 17 downward on the case 12 to reduce dust adhering to the heat dissipating fins 20, as shown in FIG. 1. However, the heat dissipating part 16 is not easy to detach, and only after the locking device 15 is detached, the filter structure 17 may be detached from the case 12. Therefore, both of the above methods have a troublesome detaching process.

BRIEF SUMMARY OF THE INVENTION

One objective of the invention is to provide a heat dissipating module capable of detaching a dust removal device.
The embodiment of the invention discloses a heat dissipating module. The heat dissipating module includes a case, a fan, a heat dissipating part, at least one first fastening device, and a dust removal device. The case has a first air opening and a second air opening. The fan is installed in the case, and it is used to guide an air flow through the first air opening and the second air opening. The heat dissipating part is located at the second air opening. The first fastening device is located at the second air opening and disposed between the case and the heat dissipating part. The dust removal device has at least one side arm. The side arm has a second fastening device that is capable of attaching to and detaching from the first fastening device.
There and other features, aspects, and advantages of the present invention will become better understood with regard to the following description, appended claims, and accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic diagram of a conventional heat dissipating module;

FIG. 2 is a schematic diagram of a heat dissipating module according to a first embodiment of the invention;

FIG. 3 is a schematic diagram of a heat dissipating module according to a second embodiment of the invention;

FIG. 4 is a schematic diagram of a heat dissipating module according to a third embodiment of the invention; and

FIG. 5 is a schematic diagram of a heat dissipating module according to a fourth embodiment of the invention.

DETAILED DESCRIPTION OF THE EMBODIMENTS

FIG. 2 is a schematic diagram of a heat dissipating module 50 according to a first embodiment of the invention. As shown in FIG. 2, the heat dissipating module 50 includes a case 52, a fan 54, a heat dissipating part 56, at least one first fastening device 58, and a dust removal device 60. The case 52 has a first air opening 62 and a second air opening 64. As shown in FIG. 2, the first air opening 62 is substantially perpendicular to the second air opening 64. The fan 54 is installed in the case 52, and it is used to guide an air flow from the first air opening 62 to the second air opening 64 or from the second air opening 64 to the first air opening 62. The heat dissipating part 56 is located at the second air opening 64, and it is used to dissipate heat absorbed by the air flowing through the second air opening 64. The first fastening device 58 is located at the second air opening 64 and disposed between the case 52 and the heat dissipating part 56. Preferably, the first fastening device 58 and the case 52 are integrally formed. The dust removal device 60 includes a filter 66 and at least one side arm 68. The side arm 68 has a second fastening device 70 that is capable of attaching to and detaching from the first fastening device 58. As shown in FIG. 2, the second fastening device 70 may be a T-shaped slider rail, and the first fastening device 58 may be a slideway that corresponds to the T-shaped slider rail. Thus, the dust removal device 60 may be fastened in the case 52 by a combination of the first fastening device 58 and the second fastening device 70. The fastening relationship between the first fastening device 58 and the second fastening device 70 is detachable. When the filter 66 has much dust to affect the heat dissipation effect of the heat dissipating module 50, a user only needs to raise the dust removal device 60 upward to separate the second fastening device 70 from the first fastening device 58. Thus, the dust removal device 60 may be detached easily, and the user may clean the filter of the detached dust removal device 60 to remove the dust. Furthermore, the slider rail structure of the second fastening device 70 is not limited herein, and it may be slider rail structures with other shapes, which depends on requirements of a practical application.
FIG. 3 is a schematic diagram of a heat dissipating module 100 according to a second embodiment of the invention. The elements of the second embodiment whose reference numbers are the same with that of the elements of the first embodiment have the same functions or relative positions. Therefore, they are not described for a concise purpose. The difference between the heat dissipating module 100 and the heat dissipating module 50 of the first embodiment lies in the design of the dust removal device. As shown in FIG. 3, the heat dissipating module 100 includes a toothed hook dust removal device 102. Thus, when detaching the toothed hook dust removal device 102 according to the above flow path, a user can detach the dust removal device and remove dust adhering to the heat dissipating fins 20 at the same time. In addition, the filter 66 may be disposed on the toothed hook dust removal device 102 to improve the situation that dust accumulates on the heat dissipating fins 20.
Afterwards, FIG. 4 is a schematic diagram of a heat dissipating module 150 according to a third embodiment of the invention. The elements of the third embodiment whose reference numbers are the same with that of the elements of the first embodiment have the same functions or relative positions. Therefore, they are not described for a concise purpose. The difference between the heat dissipating module 150 and the heat dissipating module 50 of the first embodiment lies in the design of the dust removal device and the fastening device. As shown in FIG. 4, the heat dissipating module 150 includes a dust removal device 152, a first fastening device 154, a case 52, a fan 54, and a heat dissipating part 56. The dust removal device 152 has at least one handle 156 and at least one side arm 158. The dust removal device 152 further includes a pulling component 160 and a filter 66. The pulling component 160 is disposed on the dust removal device 152. The side arm 158 has a second fastening device 162 that is capable of attaching to and detaching from the first fastening device 154. The first fastening device 154 and the case 52 are integrally formed, and the first fastening device 154 has an indentation portion 164. The handle 156 has a protrudent portion 166 for locking with the indentation portion 164. In addition, the first fastening device 154 may be a ␣-shaped slideway, and the second fastening device 162 may be a slider that corresponds to the shape of the first fastening device 154. Thus, the dust removal device 152 may be fastened to the case 52 by locking the indentation portion 164 with the protrudent portion 166 and fastening the first fastening device 154 with the second fastening device 162. If a user wants to detach the dust removal device 152 from the heat dissipating module 150, the user only needs to press the handle 156 to loose the protrudent portion 166 from the indentation portion 164 and utilize the pulling component 160 to raise the dust removal device 152 upward to separate the second fastening device 162 of the dust removal device 152 from the first fastening device 154 of the case 52. Thus, the dust removal device 152 may be detached easily.
FIG. 5 is a schematic diagram of a heat dissipating module 200 according to a fourth embodiment of the invention. The elements of the fourth embodiment whose reference numbers are the same with that of the elements of the third embodiment have the same functions or relative positions. Therefore, they are not described for a concise purpose. The difference between the heat dissipating module 200 and the heat dissipating module 150 of the third embodiment lies in the installing position of the fastening device. As shown in FIG. 5, the first fastening device 154 is disposed at a lateral side 202 of the heat dissipating part 16. The dust removal device 152 may be fastened to the heat dissipating part 56 by locking the indentation portion 164 of the first fastening device 154 with the protrudent portion 166 of the handle 156 of the dust removal device 152 and fastening the first fastening device 154 with the second fastening device 162. Thus, when a user wants to detach the dust removal device 152 from the heat dissipating module 200, the user only needs to press the handle 156 to loose the protrudent portion 166 from the indentation portion 164 and utilize the pulling component 160 to raise the dust removal device 152 upward to separate the second fastening device 162 of the dust removal device 152 from the first fastening device 154 of the heat dissipating part 56. Thus, the dust removal device 152 may be detached easily.
The numbers of the fastening device and the handle mentioned in the above embodiments are not limited to be one. That is, another fastening device or another handle which is used to fasten the dust removal device may be additionally disposed at the other lateral side that corresponds to the position of the fastening device and the handle. Thus, when a user wants to detach the dust removal device from the heat dissipating module, he or she only needs to press two handles of the dust removal device to loose the protrudent portions from the indentation portions on the two sides. Then, the user can utilize the pulling component to raise the dust removal device upward along the rails of the fastening devices on the two sides to detach the dust removal device easily. Furthermore, the positions of the indentation portion and the protrudent portion in the embodiment may be interchangeable. That is, the handle may have an indentation portion, and the fastening device may have a protrudent portion.
In the invention, the fastening relationship of the fastening devices and the locking relationship of the indentation portion and the protrudent portion are utilized to achieve the objective of simple assembly and detachment. Thus, when dust adheres to the heat dissipating part after the heat dissipating module is used for a long time, a user only needs to raise the dust removal device upward to easily detach the dust removal device. Then, the user can clean the detached dust removal device. After cleaning the dust removal device, the user can assemble the dust removal device on the heat dissipating module again along the fastening rail of the fastening device.
Although the present invention has been described in considerable detail with reference to certain preferred embodiments thereof, the disclosure is not for limiting the scope of the invention. Persons having ordinary skill in the art may make various modifications and changes without departing from the scope and spirit of the invention. Therefore, the scope of the appended claims should not be limited to the description of the preferred embodiments described above.

Claims

1. A heat dissipating module comprising:

a case having a first air opening and a second air opening;

a fan installed in the case, for guiding an air flow through the first air opening and the second air opening;

a heat dissipating part located at the second air opening;

at least one first fastening device located at the second air opening and disposed between the case and the heat dissipating part; and

a dust removal device having at least one side arm, wherein the side arm has a second fastening device that is capable of attaching to and detaching from the first fastening device.

2. The heat dissipating module according to claim 1, wherein the dust removal device comprises a filter.

3. The heat dissipating module according to claim 1, wherein the heat dissipating part comprises a plurality of parallelly arranged heat conducting fins.

4. The heat dissipating module according to claim 1, wherein the dust removal device is a toothed hook dust removal device.

5. The heat dissipating module according to claim 1, wherein a pulling component is disposed on the dust removal device.

6. The heat dissipating module according to claim 1, wherein the first fastening device and the case are integrally formed.

7. The heat dissipating module according to claim 1, wherein the first fastening device is installed at a lateral side of the heat dissipating part.

8. The heat dissipating module according to claim 1, wherein the first fastening device has an indentation portion.

9. The heat dissipating module according to claim 8, wherein the dust removal device comprises at least one handle, and the handle has a protrudent portion for locking with the indentation portion to fasten the dust removal device between the case and the heat dissipating part.

10. The heat dissipating module according to claim 1, wherein the second fastening device is a slider, and the first fastening device is a corresponding slideway.

11. The heat dissipating module according to claim 1, wherein the second fastening device is a slider rail, and the first fastening device is a corresponding slideway.

12. The heat dissipating module according to claim 11, wherein the slider rail is a T-shaped slider rail.

13. The heat dissipating module according to claim 1, wherein the first air opening is substantially perpendicular to the second air opening.