CN106200837B - Heat dissipation device and electronic equipment - Google Patents
Heat dissipation device and electronic equipment Download PDFInfo
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- CN106200837B CN106200837B CN201610500776.9A CN201610500776A CN106200837B CN 106200837 B CN106200837 B CN 106200837B CN 201610500776 A CN201610500776 A CN 201610500776A CN 106200837 B CN106200837 B CN 106200837B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/16—Constructional details or arrangements
- G06F1/20—Cooling means
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- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
- Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
Abstract
The invention discloses a heat dissipation device and electronic equipment, which are used for fully playing the heat dissipation function of a heat dissipation fin so as to reduce the waste of materials. The heat dissipating device includes: n fans; n is a positive integer; the heat dissipation fins comprise at least one metal sheet, and are arranged at the air outlets of the N fans and used for dissipating heat of a heat source; airflow formed by the N fans during working passes through the radiating fins, so that the effect of radiating the heat source is achieved; the distance between any two adjacent metal sheets arranged at the first part of the radiating fin is smaller than the distance between any two adjacent metal sheets arranged at the second part of the radiating fin; the distance between the first portion and the heat source is smaller than the distance between the second portion and the heat source.
Description
Technical Field
The present invention relates to the field of electronic technologies, and in particular, to a heat dissipation device and an electronic apparatus.
Background
With the continuous development of science and technology, electronic technology has also gained rapid development, and the variety and the function of electronic product are also more and more, and people also enjoy various facilities that scientific and technological development brought. People can enjoy comfortable life brought by the development of science and technology through various types of electronic equipment. For example, electronic devices such as desktop computers, all-in-one computers, and notebook computers have become an indispensable part of people's lives. Generally, these electronic devices generate heat during operation, and the heat dissipation device is required to dissipate heat to ensure the normal operation of the electronic devices.
At present, a heat dissipation device generally comprises a fan and heat dissipation fins, heat conducted by different parts of the heat dissipation fins may be different in a heat dissipation process, however, the existing heat dissipation fins are composed of a plurality of metal sheets which are uniformly distributed, so that the heat dissipation function of the metal sheets at different parts may not be fully exerted, and further waste of the metal sheets is caused.
Disclosure of Invention
The embodiment of the invention provides a heat dissipation device and electronic equipment, which are used for fully playing the heat dissipation function of a heat dissipation fin so as to reduce the waste of materials.
In a first aspect, a heat dissipation device is provided, including:
n fans; n is a positive integer;
the heat dissipation fins comprise at least one metal sheet, and are arranged at the air outlets of the N fans and used for dissipating heat of a heat source; airflow formed by the N fans during working passes through the radiating fins, so that the effect of radiating the heat source is achieved;
the distance between any two adjacent metal sheets arranged at the first part of the radiating fin is smaller than the distance between any two adjacent metal sheets arranged at the second part of the radiating fin; the distance between the first portion and the heat source is smaller than the distance between the second portion and the heat source.
Optionally, the heat dissipation fin includes N +1 parts; the metal sheets of each part of the N +1 parts are arranged at equal intervals.
Optionally, the N +1 locations sequentially decrease the distance between two adjacent metal sheets in each location from far to near according to the distance between the location and the heat source.
Optionally, the first portion is located in a strong wind area of the air outlet of the first fan, and the second portion is located in a weak wind area of the air outlet of the first fan; the first fan is any one of the N fans, and the wind power of the strong wind area is greater than that of the weak wind area.
Optionally, the area of any metal sheet disposed at the first portion is larger than the area of any metal sheet disposed at the second portion.
Optionally, a rotational speed of a first fan of the N fans is less than a rotational speed of a second fan of the N fans, and a distance between the first fan and the heat source is greater than a distance between the second fan and the heat source.
Optionally, the heat dissipation device further includes:
and the heat conduction device is used for connecting the heat dissipation fins with the heat source so as to transfer the heat of the heat source to the heat dissipation fins.
In a second aspect, an electronic device is provided, which includes a main body and the heat dissipation apparatus of the first aspect.
In the embodiment of the invention, the metal sheets of the radiating fins arranged at the air outlets of the N fans of the radiating device are not uniformly arranged, the farther the radiating fins are away from the heat source, the larger the distance between the metal sheets is, namely, the metal sheets far away from the heat source are arranged more sparsely than the metal sheets near the heat source, and because the heat quantity is possibly not high at the position far away from the heat source, the heat radiating effect is not influenced by enlarging the distance between the metal sheets, meanwhile, the use of the metal sheets is reduced, the raw materials can be saved, and the manufacturing cost of the radiating device is further reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a first heat dissipation device according to an embodiment of the invention;
fig. 2 is a schematic structural diagram of a second heat dissipation device according to an embodiment of the invention;
fig. 3 is a schematic structural diagram of a third heat dissipation device according to an embodiment of the invention;
fig. 4 is a schematic structural diagram of an electronic device according to an embodiment of the present invention.
Reference numerals:
10: the fan 11: first fan 12: second fan
20: the heat dissipation fins 21: metal sheet 22: the first part
23: second portion 30: heat conducting device
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The electronic device in the embodiment of the present invention may be different electronic devices such as a desktop computer, an all-in-one machine, a notebook computer, and the like, which is not limited in this respect, and any electronic device that needs to be cooled by a cooling device may be the electronic device in the embodiment of the present invention.
Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
Referring to fig. 1, a heat dissipation device is provided, which may include N fans 10 and heat dissipation fins 20. The heat dissipation fin 20 may include at least one metal sheet 21, the heat dissipation fin 20 may be disposed at an air outlet of the N fans 10, and is configured to dissipate heat from a heat source, an air flow generated by the N fans 10 during operation may pass through the heat dissipation fin 20, so as to achieve an effect of dissipating heat from the heat source, a distance between any two adjacent metal sheets 21 disposed at a first portion 22 of the heat dissipation fin 20 may be smaller than a distance between any two adjacent metal sheets 21 disposed at a second portion 23 of the heat dissipation fin, and a distance between the first portion 22 and the heat source is smaller than a distance between the second portion 23 and the heat source.
The heat source may be a component that generates heat seriously and needs to dissipate heat in the electronic device, for example, the heat source may be a Central Processing Unit (CPU) of the electronic device, a Graphics Processing Unit (GPU) of the electronic device, or the like, or the heat source may be another component that needs to be dissipated by a heat dissipation device, which is not limited in the embodiment of the present invention.
As shown in fig. 1, N is 1, that is, a case of one fan 10 is illustrated, when the fan 10 operates, an airflow flows from below the fan 10 to above the fan 10 in fig. 1, so that an air outlet is located above the fan 10, a heat dissipation fin 20 may be disposed at the air outlet of the fan 10, the heat dissipation fin 20 may be composed of a plurality of metal sheets 21, when the heat dissipation device operates, heat of a heat source is transferred to the heat dissipation fin 20, and air generated by the fan 10 blows toward the metal sheets 21 of the heat dissipation fin 20, so as to take away heat emitted by the heat source.
The heat dissipation fin 20 may be divided into a plurality of portions, for example, two portions of the first portion 22 and the second portion 23, or a plurality of portions with a number greater than 2, two portions of the first portion 22 and the second portion 23, and so on, which is not limited in the embodiment of the present invention. The first region 22 may be a region closer to the heat source than the second region 23, and as shown in fig. 1, the first region 22 may be a region located to the right of the second region 23 and closer to the heat source on the right. Because the first portion 22 is closer to the heat source, the heat of the first portion 22 is higher than the heat of the second portion 23 which is relatively farther from the heat source, and therefore, the distance between any two adjacent metal sheets 21 included in the first portion 22 can be smaller than the distance between any two adjacent metal sheets 21 included in the second portion 23, so that the heat source can be effectively radiated, the number of the metal sheets 21 can be reduced to a certain extent, the raw materials of the metal sheets 21 are saved, and the manufacturing cost of the heat radiating device is also reduced.
Optionally, the heat dissipation fins 20 may include N +1 locations; the metal sheets 21 of each of the N +1 locations may be arranged at equal intervals.
Referring to fig. 2, in fig. 2, taking N ═ 3, that is, taking the case of three fans 10 as an example, two adjacent fans 10 may correspond to one portion of the heat dissipation fin 20 together, and the fans 10 located at both sides may correspond to one portion of the heat dissipation fin 20 separately, so that, in the case of three fans 10, the heat dissipation fin 20 may include N +1, that is, four portions, such as the portion 1, the portion 2, the portion 3, and the portion 4 shown in fig. 2, respectively, the metal sheets 21 in each portion may be arranged at equal intervals, so that the heat quantity borne by each metal sheet 21 in each portion included in the heat dissipation fin 20 is relatively balanced, and the heat dissipation effect is relatively good.
Alternatively, the N +1 locations included in the heat dissipation fin 20 may be sequentially spaced from the heat source in a descending order, and the distance between two adjacent metal sheets 21 in each location is sequentially decreased.
Referring to fig. 2 again, taking N as 3, that is, three fans as an example, the heat dissipation fin 20 includes four portions, such as a portion 1, a portion 2, a portion 3, and a portion 4 shown in fig. 2, because the heat quantity is relatively smaller at the position of the heat dissipation fin 20 farther from the heat source, so that a better heat dissipation effect can be achieved without too many metal sheets 21 at the position of the heat dissipation fin 20 farther from the heat source, the distances between two adjacent metal sheets 21 in each portion may be sequentially decreased in an order from the far to the near from the heat source, and the distances between the adjacent metal sheets 21 in each portion are both what and how much the distance between the adjacent metal sheets 21 is decreased, which is not limited in the embodiments of the present invention.
For example, in fig. 2, the heat dissipating fin 20 includes four portions, i.e., a portion 4, a portion 3, a portion 2, and a portion 1 in order of distance from the heat source, so that, for example, the distance between two adjacent metal sheets 21 in the portion 4 of the heat dissipating fin 20 is 3mm, the distance between two adjacent metal sheets 21 in the portion 3 of the heat dissipating fin 20 is 2mm, the distance between two adjacent metal sheets 21 in the portion 2 of the heat dissipating fin 20 is 1mm, and the distance between two adjacent metal sheets 21 in the portion 1 of the heat dissipating fin 20 is 0.5mm, and so on.
Through the mode, the use of the metal sheet 21 can be reduced as much as possible on the premise of ensuring the heat dissipation effect of the heat dissipation device, so that the purpose of saving the metal sheet 21 can be achieved, and the manufacturing cost of the heat dissipation device is reduced.
Optionally, the first portion 22 may be located in a strong wind area of the wind outlet of the first fan 11, the second portion 23 may be located in a weak wind area of the wind outlet of the first fan 10, the first fan 11 may be any one fan 10 of the N fans 10, and the wind power of the strong wind area is greater than that of the weak wind area.
Referring to fig. 3, in fig. 3, N is 3, that is, three fans 10 are present as an example, the first fan 11 may be any one fan 10 of the three fans 10, for example, the first fan 11 is a fan 10 located in the middle of the three fans 10. The air outlet area of the fan can be divided into a strong wind area and a weak wind area according to the wind power, the area close to the vortex opening of the fan is the weak wind area, the area far away from the vortex opening of the fan is the strong wind area, for example, in the air outlet area of the first fan 11, the right partial area is the strong wind area of the first fan 11, and the left partial area is the weak wind area of the first fan 11, because the wind power of the strong wind area is greater than that of the weak wind area, the heat dissipation effect of the metal sheet 21 of the heat dissipation fin 20 located in the strong wind area is better, so that the dense first part 22 of the metal sheet 21 on the heat dissipation fin 20 can be located in the strong wind area of the first fan 11, and the sparse second part 23 of the metal sheet 21 on the heat dissipation fin 20 is located in the weak wind area of the first fan 11. In this way, the density of the metal sheet 21 corresponding to the strong wind area of each fan 10 is greater than the density of the metal sheet 21 corresponding to the weak wind area, so that each fan 10 can better radiate the metal sheet 21 on the radiating fin 20, and the radiating effect of the radiating device is better.
Alternatively, the area of any metal sheet 21 disposed at the first portion 22 may be larger than the area of any metal sheet 21 disposed at the second portion 23.
On the heat dissipation fin 20, the first portion 22 is a portion closer to the heat source than the second portion 23, and therefore, the heat transferred from the heat source to the first portion 22 of the heat dissipation fin 20 is higher than the second portion 23, and therefore, the heat dissipation efficiency of the metal sheet 21 included in the first portion 22 on the heat dissipation fin 20 can be increased, so as to improve the heat dissipation effect of the heat dissipation device, and in a manner of improving the heat dissipation efficiency of the first portion 22 on the heat dissipation fin 20, for example, the area of the metal sheet 21 included in the first portion 22 can be increased, so that the metal sheet 21 included in the first portion 22 can absorb more heat to dissipate heat, and the heat dissipation effect of the heat dissipation device is better.
Alternatively, the rotation speed of the first fan 11 of the N fans 10 may be less than the rotation speed of the second fan 12 of the N fans, and the distance between the first fan 11 and the heat source is greater than the distance between the second fan 12 and the heat source.
With continued reference to fig. 3, in fig. 3, taking N as 3, that is, three fans 10 are present as an example, the first fan 11 is, for example, the fan 10 located in the middle of the three fans 10, and the distance between the second fan 12 and the heat source is closer to the first fan 11, so that the second fan 12 may be the fan 10 located at the right of the first fan 11. Since the heat dissipation efficiency is required to be higher as the heat quantity is higher at the position of the heat dissipation fin 20 closer to the heat source, the rotation speed of the second fan 12 closer to the heat source may be greater than the rotation speed of the first fan 11 relatively farther from the heat source, and the rotation speeds of the first fan 11 and the second fan 12 are not limited in the embodiment of the present invention as long as the rotation speed of the first fan 11 is less than the rotation speed of the second fan 12. For example, the first fan 11 may rotate at 1500 rpm, the second fan 12 may rotate at 1800 rpm, and so on. Through above mode can dispel the heat for the heat source better, improve the heat-sinking capability of fan, simultaneously, the rotational speed that is used for the fan 10 of different positions is different, has avoided the resonance that a plurality of fans arouse with rotational speed work, has reduced the noise that heat abstractor during operation sent, has promoted user experience.
Optionally, the heat sink may further include a heat conduction device 30, and the heat conduction device 30 may be used to connect the heat sink fins 20 with a heat source to transfer heat of the heat source to the heat sink fins 20.
Referring to fig. 2, the heat source may be connected to the metal sheets 21 on the heat dissipation fins 20 through the heat conduction device 30, so that the heat of the heat source can be transferred to each metal sheet 21 on the heat dissipation fins 20 through the heat conduction device 30. For example, the heat sink may be made of a metal material capable of conducting heat, such as copper, silver, an alloy, and the like. The heat of the heat source can be conducted to the metal sheets 21 of the heat dissipation fins 20 through the heat dissipation device, so that the metal sheets 21 of the heat dissipation fins 20 can be dissipated through the at least one fan 10, and the purpose of dissipating heat of the heat source is further achieved.
Referring to fig. 4, based on the same inventive concept, an embodiment of the invention provides an electronic device, which may include a main body and a heat dissipation apparatus shown in any one of fig. 1 to 3.
In the embodiment of the present invention, the metal sheets 21 of the heat dissipation fins 20 disposed at the air outlets of the N fans 10 of the heat dissipation device may not be uniformly disposed, and the farther the heat dissipation fins 20 from the heat source, the larger the distance between the metal sheets 21, that is, the farther the heat dissipation fins 20 from the heat source, the more sparsely the metal sheets 21 from the heat source are disposed than the metal sheets 21 closer to the heat source, because the heat may be already low at the farther position from the heat source, the heat dissipation effect may not be affected by increasing the distance between the metal sheets 21, and at the same time, reducing the usage of the metal sheets 21 may save raw materials, thereby reducing the manufacturing cost of the heat dissipation device.
The above embodiments are only used to describe the technical solutions of the present invention in detail, but the above embodiments are only used to help understanding the method and the core idea of the present invention, and should not be construed as limiting the present invention. Those skilled in the art should also appreciate that they can easily conceive of various changes and substitutions within the technical scope of the present disclosure.
Claims (7)
1. A heat dissipation device, comprising:
n fans; n is an integer greater than or equal to 2; wherein a rotational speed of a first fan of the N fans is less than a rotational speed of a second fan of the N fans, a distance between the first fan and a heat source is greater than a distance between the second fan and the heat source;
the heat dissipation fins comprise at least one metal sheet, and are arranged at the air outlets of the N fans and used for dissipating heat of a heat source; airflow formed by the N fans during working passes through the radiating fins, so that the effect of radiating the heat source is achieved;
the distance between any two adjacent metal sheets arranged at the first part of the radiating fin is smaller than the distance between any two adjacent metal sheets arranged at the second part of the radiating fin; the distance between the first portion and the heat source is smaller than the distance between the second portion and the heat source,
the heat dissipation fin comprises N +1 parts, the N +1 parts comprise two edge parts and at least one middle part, each middle part in the at least one middle part is arranged at an air outlet of two adjacent fans in the N fans, and the heat source dissipates heat through airflow formed when the two adjacent fans work.
2. The heat dissipating device of claim 1, wherein the metal sheets of each of said N +1 locations are equally spaced.
3. The heat dissipating device of claim 2, wherein the N +1 locations are sequentially spaced from the heat source in a decreasing order of distance from the heat source, and wherein the spacing between two adjacent metal sheets in each location is sequentially decreased.
4. The heat dissipating device of claim 3, wherein said first portion is located in a strong wind region of the outlet of the first fan, and said second portion is located in a weak wind region of the outlet of the first fan; the first fan is any one of the N fans, and the wind power of the strong wind area is greater than that of the weak wind area.
5. The heat dissipating device of any of claims 1-4, wherein the area of any metal sheet disposed in said first region is greater than the area of any metal sheet disposed in said second region.
6. The heat dissipating device of any of claims 1-4, wherein said heat dissipating device further comprises:
and the heat conduction device is used for connecting the heat dissipation fins with the heat source so as to transfer the heat of the heat source to the heat dissipation fins.
7. An electronic device comprising a main body and the heat dissipating apparatus as claimed in any one of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610500776.9A CN106200837B (en) | 2016-06-29 | 2016-06-29 | Heat dissipation device and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610500776.9A CN106200837B (en) | 2016-06-29 | 2016-06-29 | Heat dissipation device and electronic equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106200837A CN106200837A (en) | 2016-12-07 |
| CN106200837B true CN106200837B (en) | 2020-07-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610500776.9A Active CN106200837B (en) | 2016-06-29 | 2016-06-29 | Heat dissipation device and electronic equipment |
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| CN (1) | CN106200837B (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009169752A (en) * | 2008-01-17 | 2009-07-30 | Toshiba Corp | Electronic equipment |
| CN102736709B (en) * | 2011-04-02 | 2015-03-11 | 鸿富锦精密工业（深圳）有限公司 | Modularized computing platform system and method for controlling fan thereof |
| CN103813689A (en) * | 2012-11-01 | 2014-05-21 | 恩斯迈电子(深圳)有限公司 | Heat radiation device and heat radiation fin thereof |
| CN203232373U (en) * | 2013-03-18 | 2013-10-09 | 宏碁股份有限公司 | Portable electronic device |
| CN204463014U (en) * | 2015-04-01 | 2015-07-08 | 浪潮电子信息产业股份有限公司 | A kind of combined radiator being easy to dispel the heat |
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