CN101666586A - Heat dissipation module, temperature equalizing element and manufacturing method for temperature equalizing element - Google Patents
Heat dissipation module, temperature equalizing element and manufacturing method for temperature equalizing element Download PDFInfo
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- CN101666586A CN101666586A CN200810214872A CN200810214872A CN101666586A CN 101666586 A CN101666586 A CN 101666586A CN 200810214872 A CN200810214872 A CN 200810214872A CN 200810214872 A CN200810214872 A CN 200810214872A CN 101666586 A CN101666586 A CN 101666586A
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- capillary structure
- hollow tube
- samming
- flat hollow
- working fluid
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D15/00—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
- F28D15/02—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes
- F28D15/04—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes with tubes having a capillary structure
- F28D15/046—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes with tubes having a capillary structure characterised by the material or the construction of the capillary structure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D15/00—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
- F28D15/02—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes
- F28D15/0233—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes the conduits having a particular shape, e.g. non-circular cross-section, annular
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
Abstract
The invention discloses a heat dissipation module, a temperature equalizing element and a manufacturing method for the temperature equalizing element. The manufacturing method for the temperature equalizing element comprises the following steps: providing a flat hollow tube body of which the inner wall surface is distributed with continuous first capillary structures; providing at least one guideelement which is placed in the flat hollow tube body and of which surface is provided with second capillary structures; connecting the first and second capillary structures to form continuous capillary structures; and filling a working fluid into the flat hollow tube body, and sealing two ends of the flat hollow tube body. In addition, the invention also provides the temperature equalizing elementand the heat dissipation module comprising the temperature equalizing element, wherein the heat dissipation module is provided with the temperature equalizing element which is used on a heating element. The manufacturing method for the temperature equalizing element comprises the steps of providing the flat hollow tube body of which inner wall surface is provided with the first capillary structures, placing the at least one guide element with a guide capillary structure into the flat hollow tube body, and making the first capillary structures and the guide capillary structure form the continuous capillary structures by using a sintering process. The manufacturing method for the temperature equalizing element can provide better flowing path for the working fluid in the temperature equalizing element.
Description
Technical field
The present invention relates to a kind of radiating module, particularly relate to the radiating module that a kind of diversion member with capillary structure is arranged at hollow cavity inside.
Background technology
Along with science and technology is flourishing, the number of transistors on the electronic component unit are is more and more, the increase of caloric value when causing it to use.And because heat pipe (heat pipe) is a kind of simply extremely effectively heat abstractor, therefore be widely used on the needs of various electronic radiation products.Its operation principle is that the latent heat by working fluid gas, liquid two alternate phase change transmits energy, at evaporator section (vaporization section), working fluid mat evaporation latent heat is taken away a large amount of heat energy and is condensed into liquid and discharge heat energy at condensation segment (condensation section) from thermal source, and working fluid flows back into the circulation that evaporator section carries out phase change again by the capillary force that capillary structure (wick) provides, and heat energy is transferred at a distance from thermal source to shed constantly.
Temperature-uniforming plate belongs to a kind of of heat pipe, because temperature-uniforming plate traditionally mainly is that two flat boards weld together about utilizing, not only path of welding is long and the welding reliability is low, more cause the capillary structure of upper and lower plates can't be continuous, can only be abutted against the mode of touching and be communicated with, cause working fluid by the time capillary force descend and back-flow velocity to be hindered influence heat transfer efficiency.
In addition, incite somebody to action dull and stereotyped up and down method of being welded traditionally, also reach mould tool skill level height more because of part, make cost comparatively high, and, need the capillary structure of indivedual these upper and lower plates of sintering, and can't finish simultaneously with one step because of its geometry restriction.Moreover, along with the demand of different length temperature-uniforming plate, also need the different shaping dies and the relevant instrument of controlling of corresponding use, cause equipment cost significantly to increase.
Summary of the invention
Because above-mentioned problem the object of the present invention is to provide a kind of reliability to increase samming element and manufacture method thereof that transfer efficiency with low cost and hot is good.
For reaching above-mentioned purpose, the present invention proposes a kind of manufacture method of samming element, may further comprise the steps: a flat hollow tube is provided, and its inner wall surface is covered with one first continuous capillary structure; At least one diversion member is provided, places in this flat hollow tube and this diversion member surface has one second capillary structure; Connect this first capillary structure and this second capillary structure and form a continous way capillary structure; And filling one working fluid and two ends that will this flat hollow tube seal.
For reaching above-mentioned purpose, the present invention proposes a kind of samming element, and it comprises a flat hollow tube, and its body is one of the forming, and is covered with in inner wall surface first a continuous capillary structure is arranged; At least one diversion member is arranged in this flat hollow tube and this diversion member surface has one second capillary structure; And a working fluid, be arranged at this flat hollow tube inside after the sealing; Wherein, this first capillary structure and this second capillary structure form a continous way capillary structure.
For reaching above-mentioned purpose, the present invention proposes a kind of radiating module
Manufacture method according to samming element of the present invention, can one-body molded mode replace traditional upper and lower plates mode, not only the less reliability that causes in welding bead path increases, and the capillary structure that diversion member also can form continous way with the capillary structure of condensation end and evaporation ends can be set at an arbitrary position, help working fluid autocondensation end can not be interrupted by the capillary force that this diversion member is back in the evaporation ends process, thereby accelerate circulating of working fluid, and then reach effective increase radiating efficiency, compare and have temperature-uniforming plate now with a capillary structure locus of discontinuity, according to the structure and the manufacture method of samming element of the present invention, can provide a better capillary structure to make the circulation and increase hot transfer efficiency fast of workflow physical efficiency.
And, the manufacture method of samming element of the present invention is the outer wall that utilizes tube stamping formation temperature-uniforming plate, does not need the material of complicated shaping or cost costliness, and can be according to different users's individual demand, adjust the length of this samming element, and mould cheaply again can be shared, can reach the advantage of simplifying manufacturing process steps, generally speaking, the manufacture method of samming element of the present invention has geometry and changes easily, and advantage such as cost is cheap.
For above-mentioned and other purposes of the present invention, feature and advantage can be become apparent, a preferred embodiment cited below particularly, and cooperate appended accompanying drawing, be described in detail below:
Description of drawings
Figure 1A and Figure 1B are the production process charts according to two kinds of samming elements of the present invention;
Fig. 2 is with the A-A ' generalized section after the inversion of samming element among Figure 1A;
Fig. 3 is with the B-B ' generalized section after the inversion of samming element among Figure 1B;
Fig. 4 is with the C-C ' generalized section after the inversion of samming element among Figure 1B;
Fig. 5 A is the exploded view of radiating module of the present invention;
Fig. 5 B is the first embodiment schematic diagram of radiating module of the present invention;
Fig. 5 C is the second embodiment schematic diagram of radiating module of the present invention;
Fig. 6 is the 3rd embodiment schematic diagram of radiating module of the present invention.
The main element symbol description
1: circular pipe 10: radiating module
11,11A, 11B: uniform-temperature cavity 2: flat hollow tube
24: support member 3: boss
5: diversion member 50,60: fixed head
51,61: base plate 52,62: side plate
53: connecting plate 54: perforate
55: 6: the second capillary structures of accommodation space
7: water injection pipe
The specific embodiment
Below will describe the manufacture method of samming element of the present invention in detail, please be simultaneously with reference to Figure 1A and Figure 1B, Figure 1A and Figure 1B are the production process charts according to two kinds of samming elements of the present invention.At first, one flat hollow tube 2 is provided, for example be to form this flat hollow tube 2 via impact style with a circular pipe 1, the cross sectional shape of this flat hollow tube 2 is polygon, oblong or oval arc, and the material of this body for example is the metal of aluminium, copper, titanium, molybdenum or other tool high heat-conduction coefficients.At this, must be noted that flat hollow tube 2 except be form via impact style with pipe 1, also can utilize impact style and directly make this flat hollow tube 2.
These flat hollow tube 2 inner sintering methods that adopt, form one first continuous capillary structure 4 and be covered with inwall at this flat hollow tube 2, wherein this first capillary structure 4 is metal spring shape, channel form, column, netted or with the porous structure of metal powder grain moulding.Then,, can form a boss 3 (shown in Figure 1B) again with impact style, and the face with this boss 3 is the bottom surface of samming element, in order to contact with thermal source in the one side of flat hollow tube 2 according to the demand of actual product.Perhaps, this flat hollow tube also can not be provided with this boss 3, and directly contacts with thermal source, shown in Figure 1A.
Then, at least one diversion member 5 is provided, utilize sintering method to be formed with one second capillary structure 6 on its surface, the diversion member 5 that sinters is placed in this flat hollow tube 2, carrying out for the second time, sintering makes second capillary structure, 6 bindings on first capillary structure 4 and the diversion member 5 and forms a continous way capillary structure again; Afterwards, insert water injection pipe 7 at flat tube wall, two ends and the water injection pipe 7 with flat hollow tube 2 sealed with flat hollow tube 2 joints again, and the method for sealing is to seal with welding, welding or similar machining mode.Sealing back and Automatic water-filling pipe 7 fillings one working fluid are in flat hollow tube 2, and working fluid for example is inorganic compound, water, alkanes, alcohols, liquid metal, ketone, cold coal or organic compound.At last, Automatic water-filling pipe 7 vacuumizes flat hollow tube 7 with removal not concretive gas (NCG), and is sealed water injection pipe 7, so can finish the making of samming element 11A of the present invention, 11B.
Fig. 2 is with the A-A ' generalized section after the inversion of samming element among Figure 1A.Identical or suitable element marking prosign among each embodiment.Please be simultaneously with reference to Figure 1A and Fig. 2, samming element 11A comprises a flat hollow tube 2, an at least one diversion member 5 and a working fluid W.The body of flat hollow tube 2 is one of the forming, and is covered with in inner wall surface first a continuous capillary structure 4 is arranged.Diversion member 5 is arranged in the flat hollow tube 2 and diversion member 5 surfaces have one second capillary structure 6.Working fluid W is arranged at flat hollow tube 2 inside after the sealing.Wherein, first capillary structure 4 and second capillary structure 6 form a continous way capillary structure.Diversion member 5 more can promote the reflux rate of working fluid W except two flat boards that can go up lower support samming element 11A, and improves radiating efficiency.All label components identical, all the other features or be described in detail in preceding encyclopaedizing, so do not repeat them here.
What this must specify be, diversion member 5 can be a solid cylinder, and second capillary structure is coated on the surface of this solid cylinder, as shown in Figure 1A.Perhaps, it is one-body molded that diversion member 5 and second capillary structure 6 can be identical material, for example is a metal spring shape, netted or with the porous structure of metal powder grain moulding, as shown in Figure 2.
Fig. 3 is with the B-B ' generalized section after the inversion of samming element among Figure 1B.Fig. 4 is with the C-C ' generalized section after the inversion of samming element among Figure 1B.Identical or suitable element marking prosign among each embodiment.Please be simultaneously with reference to Figure 1B, Fig. 3 and Fig. 4, samming element 11B comprises a flat hollow tube 2, an at least one diversion member 5 and a working fluid W.Flat hollow tube 2 has at least one boss 3, and flat hollow tube 2 is one of the forming, and is covered with in inner wall surface first a continuous capillary structure 4 is arranged.Diversion member 5 is arranged in the flat hollow tube 2 and diversion member 5 surfaces have one second capillary structure 6.Working fluid W is arranged at flat hollow tube 2 inside after the sealing.Wherein, first capillary structure 4 and second capillary structure 6 form a continous way capillary structure.Diversion member 5 more can promote the reflux rate of working fluid W except two flat boards that can go up lower support samming element 11B, and improves radiating efficiency.All label components identical, all the other features or be described in detail in preceding encyclopaedizing, so do not repeat them here.
What this must specify be, diversion member 5 can be a solid cylinder, and second capillary structure is coated on the surface of this solid cylinder, as shown in Figure 1B.Perhaps, it is one-body molded that diversion member 5 and second capillary structure 6 can be identical material, for example is a metal spring shape, netted or with the porous structure of metal powder grain moulding, as shown in Fig. 3 and Fig. 4.In addition, please refer to Fig. 4, can more comprise at least one support member 24 (for example being a high heat conduction bar or the support member that forms by the copper powder sintering) in the inboard at edge sealing place, the two ends of flat hollow tube 2 13, can keep smooth when flat hollow tube 2 is sealed at both ends.
See also Fig. 5 A and Fig. 5 C again.Shown in Fig. 5 A, this radiating module 10 includes a radiating fin 40, a samming element 11 and a fixed head 50, and this samming element 11 is an example with the samming element 11B among Figure 1B.This fixed head 50 includes a base plate 51, at least two side plate 52 and at least two connecting plates 53, and this base plate 51 is formed with an accommodation space 55 with those side plates 52, in order to ccontaining this samming element 11, and the base plate 51 of this fixed head 50 has a perforate 54, in order to ccontaining this boss 3, shown in Fig. 5 B; But or these perforate 54 holding portion samming element 11 and boss 22, shown in Fig. 5 C.This radiating fin 40 is connected in the opposite side of the boss 22 of this samming element 11, and affixed with this connecting plate 53, makes this samming element be subjected to radiating fin and seizing on both sides by the arms of fixed head and firm.
See also Fig. 6 again, this radiating module 10 includes a radiating fin 40, a samming element 11 and a fixed head 50, this samming element 11 is the flat hollow tube of sealing and is filled with working fluid, have at least one diversion member formation in this samming element 11 and connect relative inner wall surface, make this working fluid can pass through this diversion member reflux cycle.At least two fixed heads 60, this fixed head 60 have a base plate 61 and are relatively arranged on samming element 11 both sides with side plate 62, two fixed heads 60, and its side plate 62 against and clamp this samming element 11; And a radiating fin 40, it connects boss 22 opposite sides of this samming element 11, and affixed with this base plate 61.
Manufacture method according to samming element of the present invention, can one-body molded mode replace traditional upper and lower plates mode, not only the less reliability that causes in welding bead path increases, and the capillary structure that diversion member also can form continous way with the capillary structure of condensation end and evaporation ends can be set at an arbitrary position, help working fluid autocondensation end can not be interrupted by the capillary force that this diversion member is back in the evaporation ends process, thereby accelerate circulating of working fluid, and then reach effective increase radiating efficiency, compare and have temperature-uniforming plate now with a capillary structure locus of discontinuity, according to the structure and the manufacture method of samming element of the present invention, can provide a better capillary structure to make the circulation and increase hot transfer efficiency fast of workflow physical efficiency.
And, the manufacture method of samming element of the present invention is the outer wall that utilizes tube stamping formation temperature-uniforming plate, does not need the material of complicated forming mode or cost costliness, and can be according to different users's individual demand, adjust the length of this samming element, and mould cheaply again can be shared, can reach the advantage of simplifying manufacturing process steps, generally speaking, the manufacture method of samming element of the present invention has geometry and changes easily, and advantage such as cost is cheap.
The above only is preferred embodiment of the present invention, and the foregoing description only is used for illustrating but not in order to limit claim of the present invention, category of the present invention is defined by following claim.All variation and modifications of doing according to claim of the present invention all should belong to covering scope of the present invention.
Claims (17)
1. the manufacture method of a samming element comprises:
One flat hollow tube is provided, and its inner wall surface is covered with the first continuous capillary structure;
At least one diversion member is provided, places in this flat hollow tube and this diversion member surface has one second capillary structure;
Connect this first capillary structure and this second capillary structure and form a continous way capillary structure; And
Filling one working fluid and two ends that will this flat hollow tube seal.
2. the manufacture method of samming element as claimed in claim 1, wherein this flat hollow tube is formed via impact style by an integrally formed circular pipe again.
3. the manufacture method of the described samming element of claim 1, wherein this flat hollow tube directly forms with impact style.
4. as the manufacture method of claim 2 or 3 described samming elements, wherein the one side of this flat hollow tube also is formed with at least one boss.
5. the manufacture method of samming element as claimed in claim 1, wherein this continous way capillary structure is to utilize sintering processing and connect this first capillary structure and this second capillary structure.
6. the manufacture method of samming element as claimed in claim 1, wherein this first capillary structure and second capillary structure are metal spring shape, netted or with the porous structure of metal powder grain moulding.
7. the manufacture method of samming element as claimed in claim 1, wherein the sidewall in this flat body also is inserted with a water injection pipe, make this working fluid be fills up to this samming element internal by this water injection pipe, wherein this working fluid is inorganic compound, water, alkanes, alcohols, liquid metal, ketone, cold coal or organic compound.
8. the manufacture method of samming element as claimed in claim 1, wherein also be provided with at least one support member in this flat hollow tube inside, can keep smooth when this flat hollow tube is sealed at both ends, wherein this support member is a high heat conduction bar or is formed by the copper powder sintering.
9. samming element comprises:
Flat hollow tube, its body is one of the forming, and is covered with in inner wall surface first a continuous capillary structure is arranged;
At least one diversion member is arranged in this flat hollow tube and this diversion member surface has one second capillary structure; And
Working fluid is arranged at this flat hollow tube inside after the sealing; Wherein, this first capillary structure and this second capillary structure form a continous way capillary structure.
10. samming element as claimed in claim 9, wherein this flat hollow tube is formed via impact style by integrally formed circular pipe.
11. as claim 9 or 10 described samming elements, wherein the one side of this flat hollow tube also is formed with at least one boss.
12. samming element as claimed in claim 9, wherein this continous way capillary structure is to utilize sintering processing and connect this first capillary structure and this second capillary structure.
13. samming element as claimed in claim 9, wherein this first capillary structure and second capillary structure are metal spring shape, netted or with the porous structure of metal powder grain moulding.
14. samming element as claimed in claim 9, wherein also be provided with at least one support member in this flat hollow tube inside, can keep smooth when this flat hollow tube is sealed at both ends, wherein this support member is a high heat conduction bar or is formed by the copper powder sintering.
15. a radiating module comprises:
The samming element comprises:
Flat hollow tube, its body is one of the forming, and is covered with in inner wall surface first a continuous capillary structure is arranged;
At least one diversion member is arranged in this flat hollow tube and this diversion member surface has one second capillary structure; And
Working fluid is arranged at this flat hollow tube inside after the sealing; Wherein, this first capillary structure and this second capillary structure form a continous way capillary structure;
Fixed head has a base plate, at least two side plates and at least two connecting plates, and this base plate and those side plates form an accommodation space, and in order to ccontaining this samming element, this base plate has a perforate, in order to ccontaining this boss; And
Radiating fin, it connects the boss opposite side of this samming element, and affixed with this connecting plate.
16. a radiating module, it includes:
The samming element comprises:
Flat hollow tube, its body is one of the forming, and is covered with in inner wall surface first a continuous capillary structure is arranged;
At least one diversion member is arranged in this flat hollow tube and this diversion member surface has one second capillary structure; And
Working fluid is arranged at this flat hollow tube inside after the sealing; Wherein, this first capillary structure and this second capillary structure form a continous way capillary structure;
At least two fixed heads, this fixed head has a base plate and side plate, two fixed heads are relatively arranged on this samming elements on either side, and its side plate against and clamp this samming element; And
Radiating fin, it connects the boss opposite side of this samming element, and affixed with this base plate.
17. as claim 15 or 16 described radiating modules, wherein the one side of this flat hollow tube also is formed with at least one boss.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810214872A CN101666586A (en) | 2008-09-03 | 2008-09-03 | Heat dissipation module, temperature equalizing element and manufacturing method for temperature equalizing element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810214872A CN101666586A (en) | 2008-09-03 | 2008-09-03 | Heat dissipation module, temperature equalizing element and manufacturing method for temperature equalizing element |
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| CN101666586A true CN101666586A (en) | 2010-03-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200810214872A Pending CN101666586A (en) | 2008-09-03 | 2008-09-03 | Heat dissipation module, temperature equalizing element and manufacturing method for temperature equalizing element |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102235831A (en) * | 2010-05-07 | 2011-11-09 | 扎尔曼技术株式会社 | Heat pipe production method, a heat pipe produced by means of the production method and a cooling device comprising the heat pipe |
| CN108917439A (en) * | 2018-08-30 | 2018-11-30 | 无锡格林沃科技有限公司 | New-type phase change radiator |
| CN109673137A (en) * | 2019-01-09 | 2019-04-23 | 深圳兴奇宏科技有限公司 | Heat-sink unit |
| TWI681161B (en) * | 2019-01-07 | 2020-01-01 | 大陸商深圳興奇宏科技有限公司 | Height-adjustable heat dissipation unit |
| CN113557405A (en) * | 2019-01-18 | 2021-10-26 | 李克勤 | Thin heat dissipation device and method of manufacturing the same |
| US11320208B2 (en) | 2019-02-25 | 2022-05-03 | Asia Vital Components (China) Co., Ltd. | Height-adjustable heat dissipation unit |
-
2008
- 2008-09-03 CN CN200810214872A patent/CN101666586A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102235831A (en) * | 2010-05-07 | 2011-11-09 | 扎尔曼技术株式会社 | Heat pipe production method, a heat pipe produced by means of the production method and a cooling device comprising the heat pipe |
| CN108917439A (en) * | 2018-08-30 | 2018-11-30 | 无锡格林沃科技有限公司 | New-type phase change radiator |
| CN108917439B (en) * | 2018-08-30 | 2024-04-19 | 无锡格林沃科技有限公司 | Phase change radiator |
| TWI681161B (en) * | 2019-01-07 | 2020-01-01 | 大陸商深圳興奇宏科技有限公司 | Height-adjustable heat dissipation unit |
| CN109673137A (en) * | 2019-01-09 | 2019-04-23 | 深圳兴奇宏科技有限公司 | Heat-sink unit |
| CN109673137B (en) * | 2019-01-09 | 2024-03-15 | 深圳兴奇宏科技有限公司 | Heat radiation unit |
| CN113557405A (en) * | 2019-01-18 | 2021-10-26 | 李克勤 | Thin heat dissipation device and method of manufacturing the same |
| CN113557405B (en) * | 2019-01-18 | 2023-03-17 | 李克勤 | Thin heat dissipation device and manufacturing method thereof |
| US11320208B2 (en) | 2019-02-25 | 2022-05-03 | Asia Vital Components (China) Co., Ltd. | Height-adjustable heat dissipation unit |
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Open date: 20100310 |