Patent Application
20160366790
This application claims priority to Chinese Patent Application No. 201510318243.4 filed on Jun. 11, 2015, the contents of which are incorporated by reference herein.
The subject matter herein generally relates to cooling of heat-generating devices.
Electronic devices include one or more of a circuit, processor, or resistor. As the electronic device operates the one or more of a circuit, microprocessor, or resistor, heat is generated. The heat generated can cause the electronic device to not operate efficiently or even become damaged.
Implementations of the present technology will now be described, by way of example only, with reference to the attached figures.
It will be appreciated that for simplicity and clarity of illustration, where appropriate, reference numerals have been repeated among the different figures to indicate corresponding or analogous components. In addition, numerous specific details are set forth in order to provide a thorough understanding of the embodiments described herein. However, it will be understood by those of ordinary skill in the art that the embodiments described herein can be practiced without these specific details. In other instances, methods, procedures, and components have not been described in detail so as not to obscure the related relevant feature being described. Also, the description is not to be considered as limiting the scope of the embodiments described herein. The drawings are not necessarily to scale and the proportions of certain parts may be exaggerated to better illustrate details and features of the present disclosure.
Several definitions that apply throughout this disclosure will now be presented.
The term “substantially” is defined to be essentially conforming to the particular dimension, shape, or other feature that the term modifies, such that the component need not be exact. For example, “substantially cylindrical” means that the object resembles a cylinder, but can have one or more deviations from a true cylinder. The term “comprising” when utilized, means “including, but not necessarily limited to”; it specifically indicates open-ended inclusion or membership in the so-described combination, group, series and the like.
The present disclosure is described in relation to a heat dissipation device. The heat dissipation device includes a plate and a plurality of fins. The plurality of fins extends from the plate. The plate includes a fixing portion located on one side of an air inlet and a heat dissipation portion extending from the fixing portion. The heat dissipation portion includes a side portion. The side portion includes at least two side edges connected with each other. The plurality of fins includes a slant end and a side end opposite to the slant end. The slant end of the plurality of fins forms one straight line. The side end of the plurality of fins is aligned with one of the two side edges.
The plate 10 includes a fixing portion 12 and a heat dissipation portion 14 extending from the fixing portion 12. The fixing portion 12 defines two fixing holes 120. The heat dissipation portion 14 includes a side portion 140 and defines a locking hole 148. The side portion 140 is located away from the fixing portion 12 and can include a first side edge 142, a second side edge 144, and a third side edge 146. The first side edge 142 and the third side edge 146 extend from opposite ends of the second side edge 144 and are symmetrical with each other around the lengthways centerline of the plate 10. In one embodiment, the second side edge 144 can be substantially perpendicular to an extending direction of each fin 20. A connecting line of the first side edge 142, the second side edge 144, and the third side edge 146 can form a shape that is substantially an isosceles trapezoid. The fixing portion 12 can be substantially an isosceles trapezoid. The fixing portion 12 and the heat dissipation portion 14 are in a same plane.
Each fin of the plurality of fins 20 is spaced apart and all the fins are substantially parallel. An air flue 30 is formed between two adjacent fins 20. Each fin 20 includes a slant end 22 and a side end 24. The slant end 22 is located on one end of each fin 20 near the fixing portion 12 and the angle of the slant is inclined towards a direction away from the fixing portion 12. The slant ends 22 of the fins 20 together substantially form a flat plane and a line L across all the slant ends 22 (see
When the electronic device 200 is working, the heat from the heat-generating element 50 is conducted to the heat dissipation device 100 via the heat conduction plate 40. The airflow arrives at the fixing portion 12 earlier than the heat dissipation portion 14. The temperature of the side portion 140 is lower than other portion of the heat dissipation portion 14, because the heat-generating element 50 is located between two fixing holes 120 and the locking hole 148, and the side portion 140 is away from the heat heat-generating element 50. Heat from the heat-generating element 50 is absorbed by the plurality of fins 20. Additionally, the heat from the heat-generating element 50 is dissipated by the fins 20 which are adjacent to the first side edge 142, the second side edge 144, and the third side edge 146. The airflow flows through the fixing portion 12, the air flues 30, and the heat dissipation channel 80, and out of the electronic device 200 by two fans 90 via the air outlet, so that all the heat generated can be taken by the heat dissipation device 100.
The embodiments shown and described above are only examples. Many details are often found in the art such as the other features of the heat dissipation device. Therefore, many such details are neither shown nor described. Even though numerous characteristics and advantages of the present technology have been set forth in the foregoing description, together with details of the structure and function of the present disclosure, the disclosure is illustrative only, and changes may be made in the details, especially in matters of shape, size, and arrangement of the parts within the principles of the present disclosure, up to and including the full extent established by the broad general meaning of the terms used in the claims. It will therefore be appreciated that the embodiments described above may be modified within the scope of the claims.
| Number | Date | Country | Kind |
|---|---|---|---|
| 201510318243.4 | Jun 2015 | CN | national |
