CN110933918A - Heat dissipation device and electronic equipment - Google Patents
Heat dissipation device and electronic equipment Download PDFInfo
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- CN110933918A CN110933918A CN201911329060.7A CN201911329060A CN110933918A CN 110933918 A CN110933918 A CN 110933918A CN 201911329060 A CN201911329060 A CN 201911329060A CN 110933918 A CN110933918 A CN 110933918A
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
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Abstract
The invention discloses a heat dissipating double-fuselage and electronic device, the heat dissipating double-fuselage includes: a first magnetic member; the swing assembly comprises a base and a blade, wherein the first end of the blade is connected with the base, and the second end of the blade is suspended; a second magnetic member disposed on the blade adjacent the second end of the blade; the first magnetic part and the second magnetic part are arranged at intervals and are opposite in position, and the magnetism of at least one of the first magnetic part and the second magnetic part is variable, so that the second end of the blade swings under the action of the magnetic force of the first magnetic part and the second magnetic part. The scheme can solve the problems of low reliability and short service life of the heat dissipation device.
Description
Technical Field
The present invention relates to the field of heat dissipation technologies, and in particular, to a heat dissipation device and an electronic apparatus.
Background
With the continuous development of science and technology, people have higher and higher requirements on the performance of electronic equipment, so that the power consumption of the whole electronic equipment is higher and higher, and therefore a more efficient heat dissipation improvement scheme needs to be provided.
At present, a natural heat dissipation mode is generally adopted, the capacity of the heat dissipation mode is extremely limited, and the heat dissipation requirement of electronic equipment cannot be met. In order to solve such a problem, a small fan may be installed inside the electronic device to cool the electronic device by air.
However, during the operation of the fan, the fan blades rotate around the bearings, and friction force is generated between the components, so that the bearings are seriously abraded, and the reliability of the heat dissipation device is reduced. Meanwhile, external impurities enter a gap between the fan blade and the bearing, the fan can be blocked and rotated, the fan stops working, the fan can be heated and burnt due to long-term blocking and rotation, and the service life of the heat dissipation device is shortened.
Disclosure of Invention
The invention discloses a heat dissipation device and electronic equipment, and aims to solve the problems of low reliability and short service life of the heat dissipation device.
In order to solve the problems, the invention adopts the following technical scheme:
a heat dissipation device, comprising:
a first magnetic member;
the swing assembly comprises a base and a blade, wherein the first end of the blade is connected with the base, and the second end of the blade is suspended;
a second magnetic member disposed on the blade adjacent the second end of the blade;
the first magnetic part and the second magnetic part are arranged at intervals and are opposite in position, and the magnetism of at least one of the first magnetic part and the second magnetic part is variable, so that the second end of the blade swings under the action of the magnetic force of the first magnetic part and the second magnetic part.
An electronic device comprises a heating device and the heat dissipation device, wherein the blades of the heat dissipation device are arranged close to the heating device.
The technical scheme adopted by the invention can achieve the following beneficial effects:
according to the heat dissipation device disclosed by the invention, under the magnetic force action of the first magnetic part and the second magnetic part, the blades swing to exhaust air, so that a mode that the fan rotates around the bearing is replaced, the problem of bearing abrasion caused by friction generated by relative rotation of the fan blades and the bearing is solved, and the reliability of the heat dissipation device is improved. And the working method that the blade swings the air-out does not have relative pivoted part, consequently also does not have the condition of reserving the clearance between the relative pivoted part, and outside impurity can not exert an influence to the swing of blade, so can not appear because of the condition that the heat abstractor that leads to the fact burns out because of the lock-rotor, prolonged heat abstractor's life.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic structural diagram of a heat dissipation device according to an embodiment of the present invention;
FIG. 2 is a top view of the heat dissipation device shown in FIG. 1;
FIG. 3 is a schematic structural diagram of a coil module in the heat dissipation device shown in FIG. 1;
fig. 4 is a schematic structural diagram of a heat dissipation device disclosed in the second embodiment of the present invention;
FIG. 5 is a top view of the heat sink shown in FIG. 4;
fig. 6 is a schematic structural diagram of a heat dissipation device disclosed in the third embodiment of the present invention;
fig. 7 is a schematic structural diagram of a heat dissipation device according to a fourth embodiment of the present invention;
FIG. 8 is an exploded view of the heat dissipation device shown in FIG. 7;
fig. 9 is an exploded view of a heat dissipation device according to a fifth embodiment of the present invention;
fig. 10 is a schematic structural view of a heat dissipation device according to a sixth embodiment of the present invention.
Description of reference numerals:
100-a first magnetic part, 200-a swing component, 210-a base, 220-a blade, 221-a first end, 222-a second end, 230-a second magnetic part, 231-a coil module, 231 a-a magnetic conductive sheet, 231 b-silica gel, 231 c-a coil, 240-a connecting part, 300-a heat conducting sheet, 400-an air duct shell, 410-an air inlet, 420-a heat pipe, 500-a dust screen, 600-a heat radiating fin, 700-a heat generating device and 800-a supporting seat.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the specific embodiments of the present invention and the accompanying drawings. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the 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 technical solutions disclosed in the embodiments of the present invention are described in detail below with reference to the accompanying drawings.
As shown in fig. 1-2, an embodiment of the invention discloses a heat dissipation device, which can be applied to electronic devices. The heat dissipation device may specifically include a first magnetic member 100, a swing assembly 200, and a second magnetic member 230, where the swing assembly 200 may include a base 210 and a blade 220, a first end 221 of the blade 220 may be a fixed end, a second end 222 of the blade 220 may be a free end, and the second end 222 may be suspended. The first end 221 of the blade 220 is connected to the base 210, and the second magnetic member 230 is disposed on the blade 220 and adjacent to the second end 222 of the blade 220, specifically, the first end 221 of the blade 220 is connected to the base 210 through the connecting portion 240, and the base 210 can be connected to the heat generating device 700. The first magnetic member 100 and the second magnetic member 230 are disposed at a distance and opposite to each other, that is, the first magnetic member 100 and the second magnetic member 230 are disposed at a corresponding position, and they may be disposed facing each other or separated by the blade 220, as long as the magnetic fields of the two can interact with each other. At least one of the first and second magnetic members 100 and 230 is magnetically variable, wherein the magnetic variable may include a variable magnitude and direction of magnetic force, thereby generating a variable magnetic force effect between the first and second magnetic members 100 and 230.
When the first magnetic member 100 and the second magnetic member 230 act, a magnetic force may be generated to drive the second end 222 of the vane 220 away from the first magnetic member 100 or close to the first magnetic member 100, so that the vane 220 continuously swings back and forth, thereby generating a high-speed airflow to cool the electronic device. That is, the heat sink can make the second end 222 of the blade 220 swing under the magnetic force of the first magnetic member 100 and the second magnetic member 230, so as to drive the entire blade 220 to swing, and the area formed after the blade 220 swings is similar to a sector area. Specifically, the first magnetic member 100 may be directly disposed on other structures (e.g., a housing) of the electronic device, or the heat dissipation device further includes a support base 800, and the first magnetic member 100 is disposed on the support base 800.
Compared with the original heat dissipation mode of the fan rotating around the bearing, the mode of swinging the blades 220 to exhaust air in the embodiment of the invention eliminates the problem of bearing abrasion caused by friction generated by relative rotation of the fan blades and the bearing, and improves the reliability of the heat dissipation device. And the working method that blade 220 swings the air-out does not have relative pivoted part, consequently also does not have the condition of reserving the clearance between the relative pivoted part, and outside impurity can not exert an influence to the swing of blade 220, so the condition that heat abstractor burns out because of the stall causes can not appear, has prolonged heat abstractor's life. And blade 220 reciprocal swing air-out's mode compares in traditional axial fan, has reduced the vortex noise, has promoted the user and has used the impression.
In an optional embodiment, the heat dissipation apparatus further includes a heat conducting sheet 300, the heat conducting sheet 300 is connected to a side of the base 210 away from the blade 220, the heat conducting sheet 300 is suitable for being connected to the heat generating device 700, so that the base 210 can be connected to the heat generating device 700 through the heat conducting sheet 300, so as to reduce contact thermal resistance when the heat generating device 700 conducts heat to the base 210, and thus improve heat dissipation efficiency of the heat dissipation apparatus. Further, the material of the heat conducting sheet 300 may be a material with good heat conducting capability, such as heat conducting gel, heat conducting silicone grease, etc., but is not limited to these materials, and an appropriate material may be selected according to the requirement in the actual design.
Both the first magnetic member 100 and the second magnetic member 230 may be provided as electromagnets, or only one of them may be an electromagnet and the other may be a permanent magnet. When the electromagnet is powered, the first magnetic member 100 and the second magnetic member 230 interact to generate a magnetic force, and at this time, a repulsive force or an attractive force is generated between the two, so as to force the vane 220 to swing. The size and direction of the magnetic field can be changed by changing the size and direction of the current, so that the amplitude and size of the swing of the blade 220 are changed, and the reciprocating swing air outlet process of the blade 220 is realized. Alternatively, considering that only one of the first magnetic member 100 and the second magnetic member 230 is provided as an electromagnet, the swinging motion of the blade 220 can be more conveniently achieved, it is preferable that the first magnetic member 100 is a permanent magnet and the second magnetic member 230 is an electromagnet in the embodiment of the present invention; or, the first magnetic member 100 is an electromagnet, and the second magnetic member 230 is a permanent magnet, so as to reduce the cost and power consumption of the electronic device.
Further, as shown in fig. 3, the electromagnet may include a coil module 231, and the coil module 231 may be adhered to the blade 220 by a heat conductive adhesive or directly welded to the blade 220. The coil module 231 includes a magnetic conductive sheet 231a, a silica gel 231b and a coil 231c, the magnetic conductive sheet 231a is connected with the coil 231c through the silica gel 231b, the routing of the coil module 231 can be led to the base 210 along the blade 220, and then connected to the circuit board, and the electromagnet is formed after being electrified. When the coil 231c is energized, the first magnetic member 100 and the second magnetic member 230 act to break the stress balance state of the blade 220, so as to force the second end 222 of the blade 220 to swing, and by continuously changing the current direction, the first magnetic member 100 and the second magnetic member 230 act to generate acting forces in different directions to drive the second end 222 of the blade 220 to move in different directions, so as to continuously swing back and forth to generate high-speed airflow to cool the electronic device. Further, the current input here may be a half sine wave current, and the oscillating frequency and amplitude of the blade 220 are adjusted by changing the frequency and voltage of the input current.
In the embodiment of the present invention, the second magnetic member 230 is disposed on the blade 220 and adjacent to the second end 222 of the blade 220, specifically, as shown in fig. 4 to 5, the number of the second magnetic member 230 may be only one, and the second magnetic member 230 is disposed on a single side of the blade 220, in which case, the thickness of the swing assembly 200 is smaller. In another embodiment, the number of the second magnetic members 230 may be at least two, and each of the second magnetic members 230 is respectively located at two sides of the second end 222 of the blade 220, and of course, when the number of the second magnetic members 230 is at least two, each of the second magnetic members 230 may also be located at one side of the second end 222. At least two second magnetic members 230 are arranged on the blade 220, so that the magnetic force generated between the first magnetic member 100 and the second magnetic member 230 is stronger, the swing amplitude of the blade 220 is larger, the heat dissipation effect is better, each second magnetic member 230 is respectively positioned at two sides of the second end 222 of the blade 220, the second magnetic members 230 can be distributed more uniformly, and the magnetic force generated between the first magnetic member 100 and the second magnetic member 230 can be distributed more uniformly, so that the stability of the blade 220 in swing is improved.
Further, the number of the first magnetic members 100 may be at least two, and each of the first magnetic members 100 is respectively disposed on two sides of the second magnetic member 230, so that when the heat dissipation device does not need to work, the blades 220 are acted by the magnetic force of the first magnetic members 100 on two sides, the two sides are stressed in a balanced manner, and a static state is maintained. When the heat dissipation device in the embodiment of the present invention is installed in an electronic device, a phenomenon that the electronic device frequently moves or collides may occur, and at this time, the blade 220 is in a state of being balanced in stress and cannot easily swing, so that the reliability of the heat dissipation device is improved.
As shown in fig. 6, in an embodiment, under the condition that the installation space permits, the number of the blades 220 and the number of the first magnetic members 100 are at least two, the first end 221 of each blade 220 is connected to the base 210, each blade 220 is provided with the second magnetic member 230, and each first magnetic member 100 is respectively arranged corresponding to the second end 222 of each blade 220. When the second magnetic member 230 acts on the corresponding first magnetic member 100, the at least two blades 220 simultaneously swing to generate high-speed airflow to cool the electronic device, thereby improving the heat dissipation efficiency of the heat dissipation apparatus. Further, when the number of the blades 220 and the first magnetic members 100 is two, an angle formed between the two blades 220 may be 180 °; when the number of the blades 220 and the first magnetic member 100 is three, an angle formed between adjacent blades 220 may be 120 °; when the number of the blades 220 and the first magnetic member 100 is four, an angle formed between adjacent blades 220 may be 90 °. Specifically, the number of the heat dissipating devices can be selected as appropriate according to the heat dissipation requirement and the installation space when designing the structure of the heat dissipating device.
In the embodiment of the present invention, optionally, the blades 220 in the heat dissipation device may be configured as heat conduction blades, when the first magnetic member 100 interacts with the second magnetic member 230, the blades 220 swing to generate high-speed airflow for heat dissipation, and since the blades 220 themselves can also conduct heat, the wind flowing through the blades 220 has substantially no loss of wind speed and wind volume, and thus the heat dissipation efficiency is higher. In addition, because no heat dissipation part is additionally arranged, the space occupied by the whole heat dissipation device is reduced. Specifically, the blade 220 may be made of a metal having good thermal conductivity and flexibility, such as copper.
Further, the base 210 can also be made of a heat conducting material, the base 210 is connected with the heat generating device 700, the heat generating device 700 conducts heat to the base 210 and then to the blades 220 through the base 210, and the blades 220 swing to generate high-speed airflow for heat dissipation. Specifically, the base 210 may be made of metal such as aluminum, copper, or the like. Still further, to reduce the thermal resistance between the blade 220 and the base 210, the blade 220 and the base 210 need to be in good contact, and the blade 220 may be cold-fitted, welded, or otherwise secured to the base 210.
In order to improve the reliability of the heat dissipation device, the blade 220 is prevented from being frequently contacted with other structural components to generate friction in the swinging process to cause the abrasion of the structural components, a gap exists between the blade 220 and the plane where the base 210 is located, when the first magnetic component 100 and the second magnetic component 230 act to drive the blade 220 to swing, the blade 220 is not contacted with the base 210, the structural components are not contacted, no friction force is generated to damage the components, and thus the reliability of the heat dissipation device is improved.
As shown in fig. 7-8, in the embodiment of the present invention, the heat dissipation device may further include an air duct casing 400, the air duct casing 400 is provided with an air inlet 410, air enters from the air inlet 410 when the blade 220 swings, so as to ensure stable air pressure inside the air duct casing 400, and the air duct casing 400 is provided with at least one air outlet, so that heat can be discharged in time. The air duct case 400 may be provided as an integral structure, or the air duct case 400 may have a cover plate and a base, and the base and the cover plate of the air duct case 400 are combined together to form the whole heat dissipation air duct. The swing assembly 200 and the first magnetic member 100 are both disposed in the air duct shell 400, and at this time, the heat dissipation device becomes an independent heat dissipation system, and the air duct is formed without relying on other structures of the electronic device, and the air duct shell 400 can achieve a good heat dissipation effect by relying on the air duct structure of the air duct shell.
Specifically, the base of the air duct shell 400 may be integrally formed with the base 210, and at this time, the first magnetic member 100 does not need to be mounted by the supporting seat 800, but the first magnetic member 100 is disposed on the base of the air duct shell 400. The base of the air duct case 400 may be made of the same material as the base 210, which has a better heat-conducting property, so that the air duct case 400 has a better heat-conducting effect. Further, the base of the air duct case 400 may be connected to the heat generating device 700 through the heat conductive sheet 300, so as to reduce thermal contact resistance, thereby improving heat dissipation efficiency.
Further, the embodiment of the present invention may further define the structure of the air duct shell 400, and specifically, define a direction in which the second end 222 of the blade 220 extends toward the first end 221 as a first direction, which is perpendicular to the cross section of the air duct shell 400, and in the first direction, the cross section area of the air duct shell 400 gradually decreases, that is, the volume of the air duct shell 400 also gradually decreases in the first direction, so that the space occupied by the heat dissipation device in the electronic device decreases. Because the swing mode of the blade 220 is that the first end 221 is fixed, the second end 222 swings, the motion space required by the second end 222 is large, the motion space required by the first end 221 is small, and the motion track of the whole blade 220 is in fan-shaped distribution in the direction opposite to the first direction, the cross section area of the air duct shell 400 is gradually reduced in the first direction, so that the motion space required by the swinging of the blade 220 can be just met, the structure of the heat dissipation device is compact, and the installation space can be saved.
In the embodiment of the present invention, the position of the air inlet 410 may be set at a position opposite to the base 210, and when the blade 220 swings to cool the heat generating device 700 of the electronic device, the air flow at the air inlet 410 may also perform an air cooling and heat dissipating function, and since the base 210 is connected to the heat generating device 700, the distance between the air inlet 410 and the heat generating device 700 is small, heat dissipation may be performed more quickly, and the heat dissipating efficiency of the heat dissipating apparatus is improved.
As shown in fig. 7 to 8, in order to prevent external impurities from entering the air duct case 400 and damaging structural members of the heat dissipation device, a dust screen 500 may be installed at the air inlet 410, and the dust screen 500 may block external impurities from entering the air duct case 400, thereby improving the reliability of the heat dissipation device.
As shown in fig. 9, in the embodiment of the invention, in order to improve the heat dissipation efficiency of the heat dissipation apparatus, a plurality of heat dissipation fins 600 may be disposed at positions adjacent to the second ends 222 of the blades 220, and the heat dissipation fins 600 are arranged at intervals. Specifically, the heat dissipation fins 600 may be disposed on the base of the air duct shell 400 near the second ends 222 of the blades 220, and the addition of the heat dissipation fins 600 further improves the heat dissipation efficiency of the heat dissipation device.
Further, when the heat-conducting sheet 300 is provided, the heat dissipation device mainly has two heat dissipation paths: firstly, the heat generating device 700 conducts heat to the base of the air duct shell 400 through the heat conducting fins 300, then conducts the heat to the blades 220, and dissipates heat through high-speed airflow generated by the swinging of the blades 220; the second is that the heating device 700 conducts heat to the base of the air duct casing 400 through the heat conducting fins 300, then conducts the heat to the heat dissipating fins 600, and then dissipates the heat through the high-speed airflow generated by the blades 220.
Furthermore, as shown in fig. 10, in the embodiment of the present invention, the heat pipe 420 may be embedded in the air duct casing 400, or the whole or part of the air duct casing 400 may be set as a temperature-equalizing plate, or both the heat pipe 420 and the air duct casing 400 may be embedded in the air duct casing 400, and the whole or part of the air duct casing 400 may also be set as a temperature-equalizing plate, which can improve the heat exchange efficiency of the heat dissipation device. Preferably, the embodiment of the present invention provides the heat pipe 420 and the vapor chamber at the same time, thereby achieving higher heat exchange efficiency.
The embodiment of the invention also discloses electronic equipment, which comprises the heating device 700 and the heat dissipation device of any embodiment, wherein the blades 220 of the heat dissipation device are arranged close to the heating device 700, and when the second ends of the blades 220 swing, the heat dissipation of the heating device 700 can be realized.
The electronic device disclosed by the embodiment of the invention can be a smart phone, a tablet computer, an electronic book reader or a wearable device. Of course, the electronic device may also be other devices, and the embodiment of the present invention is not limited thereto.
In the above embodiments of the present invention, the difference between the embodiments is mainly described, and different optimization features between the embodiments can be combined to form a better embodiment as long as they are not contradictory, and further description is omitted here in view of brevity of the text.
The above description is only an example of the present invention, and is not intended to limit the present invention. Various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.
Claims (14)
1. A heat dissipating device, comprising:
a first magnetic member;
the swing assembly comprises a base and a blade, wherein the first end of the blade is connected with the base, and the second end of the blade is suspended;
a second magnetic member disposed on the blade adjacent the second end of the blade;
the first magnetic part and the second magnetic part are arranged at intervals and are opposite in position, and the magnetism of at least one of the first magnetic part and the second magnetic part is variable, so that the second end of the blade swings under the action of the magnetic force of the first magnetic part and the second magnetic part.
2. The heat dissipating device of claim 1, further comprising a thermally conductive sheet attached to a side of the base facing away from the blade, the thermally conductive sheet adapted to be attached to a heat generating component.
3. The heat dissipating device of claim 1, wherein the first magnetic member is an electromagnet and the second magnetic member is a permanent magnet; or, the first magnetic part is a permanent magnet, and the second magnetic part is an electromagnet.
4. The heat dissipation device of claim 1, wherein the number of the second magnetic members is at least two, and each of the second magnetic members is respectively located at two sides of the second end; or the second magnetic part is positioned on one side of the second end.
5. The heat dissipating device of claim 1, wherein the number of the blades and the number of the first magnetic members are at least two, the first end of each of the blades is connected to the base, the second magnetic member is disposed on each of the blades, and each of the first magnetic members is disposed corresponding to the second end of each of the blades.
6. The heat dissipation device of claim 1, wherein the number of the first magnetic members is at least two, and each of the first magnetic members is disposed on two sides of the second magnetic member.
7. The heat dissipating device of claim 1, wherein said fins are thermally conductive fins.
8. The heat dissipation device of claim 1, further comprising an air duct shell, wherein an air inlet is formed in the air duct shell, and the swing assembly and the first magnetic member are both disposed in the air duct shell.
9. The heat dissipating device of claim 8, wherein the air inlet is opposite the base.
10. The heat dissipating device of claim 8, further comprising a dust screen disposed at the air inlet.
11. The heat dissipating device of claim 8, wherein the duct shell is provided with heat pipes; and/or the air duct shell comprises a temperature equalization plate.
12. The heat dissipating device of claim 8, wherein the direction in which the second end extends toward the first end is a first direction in which the cross-sectional area of the duct shell gradually decreases, wherein the cross-section is perpendicular to the first direction.
13. The heat dissipating device of claim 1, further comprising a plurality of fins adjacent the second end of the blade, each fin spaced apart.
14. An electronic apparatus comprising a heat generating device and the heat dissipating device according to any one of claims 1 to 13, wherein the blade of the heat dissipating device is disposed adjacent to the heat generating device.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911329060.7A CN110933918B (en) | 2019-12-20 | 2019-12-20 | Heat dissipation device and electronic equipment |
| PCT/CN2020/136078 WO2021121181A1 (en) | 2019-12-20 | 2020-12-14 | Heat dissipation apparatus and electronic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911329060.7A CN110933918B (en) | 2019-12-20 | 2019-12-20 | Heat dissipation device and electronic equipment |
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| Publication Number | Publication Date |
|---|---|
| CN110933918A true CN110933918A (en) | 2020-03-27 |
| CN110933918B CN110933918B (en) | 2022-01-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911329060.7A Active CN110933918B (en) | 2019-12-20 | 2019-12-20 | Heat dissipation device and electronic equipment |
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| Country | Link |
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| CN (1) | CN110933918B (en) |
| WO (1) | WO2021121181A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021121181A1 (en) * | 2019-12-20 | 2021-06-24 | 维沃移动通信有限公司 | Heat dissipation apparatus and electronic device |
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| JP2005133555A (en) * | 2003-10-28 | 2005-05-26 | Daikin Ind Ltd | Elastic vibrating plate fan |
| CN201037478Y (en) * | 2007-04-30 | 2008-03-19 | 力致科技股份有限公司 | Air current generator |
| CN101370373A (en) * | 2007-08-17 | 2009-02-18 | 英业达股份有限公司 | Radiating device |
| CN106783771A (en) * | 2017-01-19 | 2017-05-31 | 华为机器有限公司 | A kind of heat abstractor, radiator and electronic equipment |
| CN107347242A (en) * | 2016-05-05 | 2017-11-14 | 华为技术有限公司 | A kind of heat abstractor and communication equipment |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108518364A (en) * | 2018-03-27 | 2018-09-11 | 联想(北京)有限公司 | A kind of swinging fan and electronic equipment |
| CN110933918B (en) * | 2019-12-20 | 2022-01-18 | 维沃移动通信有限公司 | Heat dissipation device and electronic equipment |
-
2019
- 2019-12-20 CN CN201911329060.7A patent/CN110933918B/en active Active
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2020
- 2020-12-14 WO PCT/CN2020/136078 patent/WO2021121181A1/en active Application Filing
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005133555A (en) * | 2003-10-28 | 2005-05-26 | Daikin Ind Ltd | Elastic vibrating plate fan |
| CN201037478Y (en) * | 2007-04-30 | 2008-03-19 | 力致科技股份有限公司 | Air current generator |
| CN101370373A (en) * | 2007-08-17 | 2009-02-18 | 英业达股份有限公司 | Radiating device |
| CN107347242A (en) * | 2016-05-05 | 2017-11-14 | 华为技术有限公司 | A kind of heat abstractor and communication equipment |
| CN106783771A (en) * | 2017-01-19 | 2017-05-31 | 华为机器有限公司 | A kind of heat abstractor, radiator and electronic equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2021121181A1 (en) * | 2019-12-20 | 2021-06-24 | 维沃移动通信有限公司 | Heat dissipation apparatus and electronic device |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2021121181A1 (en) | 2021-06-24 |
| CN110933918B (en) | 2022-01-18 |
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