CN106711111B - Heat radiation module fastening device and heat radiation module with fastening device - Google Patents
Heat radiation module fastening device and heat radiation module with fastening device Download PDFInfo
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- CN106711111B CN106711111B CN201510496922.0A CN201510496922A CN106711111B CN 106711111 B CN106711111 B CN 106711111B CN 201510496922 A CN201510496922 A CN 201510496922A CN 106711111 B CN106711111 B CN 106711111B
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Abstract
A heat dissipation module fastening device comprises: a long body, both ends of which are respectively provided with at least one guide part, and the center of which is provided with a screw joint part; at least two bolts movably penetrate through the two at least one guide parts from top to bottom, so that the long body can be axially displaced along the two at least one guide parts under the action of external force, the tops of the at least two bolts are respectively provided with a limiting part, and the two at least one guide parts are limited from upwards separating from the tops of the at least two bolts; and an action bolt which is in threaded connection from top to bottom and penetrates through the threaded connection part, and the bottom of the action bolt forms a butting part; when the buckling device is combined with the heat dissipation module, the buckling device is combined with a heat dissipation body, the heat dissipation body consists of a bottom plate and a plurality of fins, and a through hole is formed in the center of a combined body formed by combining the plurality of fins and used for the acting bolt to pass through.
Description
Technical Field
The present invention relates to heat dissipation devices for electronic chips, and more particularly to a heat dissipation module fastening device and a heat dissipation module having the same.
Background
US 7,903,411 discloses a heat sink retaining device. In this patent, the heat sink fins are fixed on the electronic chip by a spring plate assembly (spring plate assembly), and the spring plate (spring plate) must slide in a slot by a spring pin, and the pressure of the spring plate on the bottom plate of the spring plate assembly is adjusted by rotating a central action screw (actuation screw). Although the structure can achieve the purpose that the elastic plate must move along the matching relationship between the elastic pin and the groove when ascending and descending, the structure is troublesome in assembly and complex.
Disclosure of Invention
The present invention is directed to a heat sink module retaining device and a heat sink module having the same, which can retain a heat sink on an electronic chip and adjust a retaining force.
Therefore, the present invention provides a heat dissipation module fastening device, comprising: a long body, both ends of which are respectively provided with at least one guide part, and the center of which is provided with a screw joint part; at least two bolts movably penetrate through the two at least one guide parts from top to bottom, so that the long body can be axially displaced along the two at least one guide parts under the action of external force, the tops of the at least two bolts are respectively provided with a limiting part, and the two at least one guide parts are limited from upwards separating from the tops of the at least two bolts; and an action bolt which is in threaded connection from top to bottom and penetrates through the threaded connection part, and the bottom of the action bolt forms a butting part.
Therefore, the invention can be used for buckling the heat dissipation body on the electronic chip and can also achieve the effect of adjusting the buckling force by rotating the acting bolt.
According to the invention, a heat dissipation module with a fastening device comprises: a heat sink having a bottom plate and a plurality of fins arranged on the bottom plate, wherein the plurality of fins are combined with each other to form a through hole which is through from top to bottom in the center of the combination body; a long body located above the bottom plate, both ends of which are respectively provided with at least one guide part, and the center of which is provided with a screw joint part; at least two bolts movably penetrate through the two at least one guide parts from top to bottom, so that the long body can be axially displaced along the two at least one guide parts under the action of external force, the tops of the at least two bolts are respectively provided with a limiting part, and the two at least one guide parts are limited from upwards separating from the tops of the at least two bolts; and an action bolt which is in threaded connection from top to bottom and penetrates through the threaded connection part and also penetrates through the through hole, and the bottom of the action bolt forms an abutting connection part which abuts against the bottom plate.
Therefore, the invention can fasten the heat sink on the electronic chip, and can also achieve the effect of adjusting the fastening force by rotating the acting bolt.
Drawings
Fig. 1 is an exploded view of a first preferred embodiment of the present invention.
FIG. 2 is a combination diagram of the operation states of the first preferred embodiment of the present invention.
Fig. 3 is an exploded view of the first preferred embodiment of the present invention in use.
Fig. 4 is a cross-sectional view taken along line 4-4 of fig. 2.
FIG. 5 is another combination diagram of the first preferred embodiment of the present invention.
Fig. 6 is an exploded view of fig. 5.
FIG. 7 is a combination diagram of the operation states of the second preferred embodiment of the present invention.
Fig. 8 is an exploded view of the second preferred embodiment of the present invention in use.
Fig. 9 is a cross-sectional view taken along line 9-9 of fig. 7.
FIG. 10 is a combination diagram of the operation states of the third preferred embodiment of the present invention.
Fig. 11 is an exploded view of the third preferred embodiment of the present invention in use.
Detailed Description
To illustrate the technical features of the present invention in detail, the following preferred embodiments are described in conjunction with the drawings, in which:
as shown in fig. 1, a heat dissipation module fastening device 10 according to a first preferred embodiment of the present invention is mainly composed of an elongated body 11, at least two bolts 21, and an action bolt 31, wherein:
the long body 11 has at least one guiding portion 12 at each end and a screw portion 14 at the center. In the first embodiment, the at least one guiding portion 12 is exemplified by one in number, and the at least one guiding portion 12 is exemplified by a through hole shape; in addition, in the first embodiment, the long body 11 is formed by overlapping two plates.
The at least two bolts 21 are exemplified by two in number in the first embodiment. The two bolts 21 can movably pass through the two guiding portions 12 from top to bottom, so that the long body 11 can be displaced along the axial direction of the two bolts 21 by the two guiding portions 12 when acting on external force, and the tops of the two bolts 21 are respectively provided with a limiting portion 22 for limiting the two guiding portions 12 from being separated from the tops of the two bolts 21 upwards.
The action bolt 31 is screwed from top to bottom and passes through the screw-connection portion 14, and the bottom of the action bolt 31 forms an abutting portion 32.
In the first embodiment, the first fastening member further includes a fastening seat 41, the fastening seat 41 is composed of two seat bodies 42, and the bottom of the two bolts 21 is fastened to the two seat bodies 42. In practice, a fixing hole 43 may be formed in each seat body 42, and the bottom of the two bolts 21 may be inserted into each fixing hole 43 or fixed to the two seat bodies 42 in a threaded relationship.
The structure of the first embodiment is explained above, and the manner of use of the first embodiment is explained next.
Referring to fig. 2 to 4, before use, the present invention and a heat sink 91 are combined on an electronic chip 99 (e.g., a central processing unit, CPU). The electronic chip 99 is disposed on a circuit board 95, the two bases 42 of the fixing base 41 are disposed on the circuit board 95, the heat sink 91 is composed of a bottom plate 92 and a plurality of fins 94 disposed on the bottom plate 92, and the plurality of fins 94 are combined with each other to form a through hole 941 passing through the center of the combination. The long body 11 is disposed in a receiving space 942 preset below the fin 94, and the long body 11 is located above the bottom plate 92, and the action bolt 31 passes through the through hole 941 to be screwed to the screwed portion 14, and the abutting portion 32 of the action bolt 31 abuts against the bottom plate 92. In addition, the bottom of the two bolts 21 is fixed to the two seat bodies 42. Thus, the present invention is utilized to combine the heat sink 91 with the electronic chip 99.
In use, as shown in figures 2 to 4, the height of the body 11 is adjusted by rotating the action bolt 31. Since the abutting portion 32 of the action bolt 31 abuts against the bottom plate 92, the long body 11 will rise when the action bolt 31 is tightened, and when the long body 11 rises until both ends of the long body abut against the limiting portions 22 of the two bolts 21, the two bolts 21 are fixed to the two seat bodies 42, so that the long body 11 cannot rise any more. At this time, if the action bolt 31 is still screwed, the center of the long body 11 rises and the two ends do not rise, which causes the long body 11 to form a downward returning pressure, and then acts on the action bolt 31 to generate a larger pressing force on the bottom plate 92, thereby pressing the heat sink 91 on the electronic chip 99. By screwing or unscrewing the action bolt 31, the force of the action bolt 31 acting on the bottom plate 92 can be adjusted, and the force of the heat sink 91 pressing on the electronic chip 99 can be adjusted.
It should be noted that, in the first embodiment, the two at least one guide portions and the at least two bolts are exemplified by two in number, however, the number of the at least one guide portions and the at least two bolts may be more (for example, four bolts). In four cases, two guiding portions are respectively arranged at two ends of the long body (i.e. one hole at one end of the long body in fig. 2 is changed into two holes), so that the long body has four guiding portions in total, and the four bolts are fixed on the plurality of seat bodies through the plurality of guiding portions. Such a number of design changes is still intended to be covered by the present invention.
In view of the above, the present invention not only can achieve the effect of fastening the heat sink 91 to the electronic chip 99, but also can achieve the effect of adjusting the fastening force.
As shown in fig. 5 to 6, in the first embodiment, two spacers 16 may be further added, and the number of the spacers corresponds to the number of the bolts 21. Each pad 16 has an elongated raised wall 161 extending downwardly from one side thereof, and each pad 16 has a through hole 162.
When assembling, the two bolts 21 pass through the through holes 162 of the two gaskets 16, so that the two gaskets 16 are located between the limiting portions 22 of the two bolts 21 and the elongated body 11, and the elongated raised walls 161 of the two gaskets 16 are located between the guiding portion 12 and the screwing portion 14.
Thus, when the long body 11 rises to the top, the two ends of the long body are abutted against the limiting parts 22 of the two bolts 21 by the two gaskets 16, and the pressing force of the limiting parts 22 on the long body 11 is transmitted to the long body 11 by the long protruding wall 161 of the gasket 16 and the other end of the gasket 16 opposite to the long protruding wall 161. Therefore, the two position-limiting parts 22 provide pressing force to the long body 11 by the two gaskets 16, so that the force transmission area is larger and the force transmission positions are more, and the problem that the two position-limiting parts 22 may form single-point force to the long body 11 to cause deformation of the long body 11 without the two gaskets 16 can be avoided.
Referring to fig. 7 to 9, a heat dissipation module 50 with a fastening device according to a second preferred embodiment of the present invention mainly comprises a heat dissipation body 91 ', an elongated body 11', at least two bolts 21 ', and an action bolt 31', wherein:
the heat sink 91 'has a bottom plate 92' and a plurality of fins 94 'disposed on the bottom plate 92', wherein a through hole 941 'is formed at the center of the plurality of fins 94'.
The elongated body 11 'is located above the bottom plate 92', and has at least one guiding portion 12 'at both ends and a screw portion 14' at the center. In the second embodiment, the at least one guiding portion 12 'at one end of the long body 11' is still exemplified in number, the long body 11 'is formed by bending a plate, the two ends of the long body 11' extend downwards and then extend outwards and horizontally to form the guiding portions 12 ', respectively, and the center of the long body bends downwards to form the screw portion 14'. The elongated body 11 ' is located on the plurality of fins 94 ' of the heat sink 91 ', and the screw portion 14 ' is located in the through hole 941 ' by a downward bending structure.
The at least two bolts 21 ' are, for example, two in number in the embodiment, movably pass through the two guiding portions 12 ' from top to bottom, so that the long body 11 ' is axially displaced along the two bolts 21 ' by the two guiding portions 12 ' when acting external force, and the tops of the two bolts 21 ' respectively have a limiting portion 22 ' for limiting the two guiding portions 12 ' from being upwardly separated from the tops of the two bolts 21 '. In the second embodiment, each of the bolts 21 'has a spring 24', and each spring 24 'is sleeved on the bolt 21' disposed thereon and located between the limiting portion 22 'and the long body 11'.
The action bolt 31 'is screwed from top to bottom and passes through the screw portion 14', and also passes through the through hole 941 ', and the bottom of the action bolt 31' forms an abutting portion 32 'abutting against the bottom plate 92'.
During assembly, the bolts 21 'are directly fixed to a circuit board 95', and the action bolt 31 'is first screwed to the screw portion 14' of the elongated body 11 'and then passes through the through hole 941' to abut the bottom plate 92 'with the abutting portion 32', and the rest of the assembly method is the same as that of the first embodiment.
In the second embodiment, when the long body 11 'is lifted, the springs 24' provide a pressing force to the long body 11 ', so that the springs 24' provide a proper pressing force to avoid the problem of excessive pressing force.
The other functions of the second embodiment are the same as those of the first embodiment, and will not be described again.
Referring to fig. 10 to fig. 11, a heat dissipation module 60 with a retaining device according to a third preferred embodiment of the present invention is mainly similar to the second embodiment of the disclosure, except that:
each bolt 21 "in this third embodiment is not provided with a spring.
In addition to the heat dissipation body 91 ", the elongated body 11", the two bolts 21 ", and the action bolt 31", the third embodiment further includes a spring fixing base 61 ", the elastic sheet fixing seat 61 'is provided with two elastic sheets 62', the two elastic sheets 62 'correspond to the two bolt pieces 21' in quantity, the center of the two elastic sheets 62 'is fixedly provided with two screw connecting pieces 64', the two elastic pieces 62 "correspond to the two bolts 21", respectively, the two bolts 21 "are screwed to the two screw-connecting pieces 64" by an internal thread groove (not shown) arranged at the bottom, the two bolts 21 "are rotated to form a dynamic state of moving up and down for the two screw-connecting pieces 64", and then act on the two elastic pieces 62 "to move up and down, the rising of the two elastic sheets 62 ″ is larger in the downward return elastic force, so that the two elastic sheets can act on the long body 11 ″ to form a pressing force for pressing the heat sink 91 ″.
The other effects achieved by the third embodiment are all the same as those achieved by the first embodiment disclosed in the foregoing, and are not repeated.
Claims (12)
1. A heat dissipation module retaining device, comprising:
a long body, both ends of which are respectively provided with at least one guide part, and the center of which is provided with a screw joint part;
at least two bolts movably penetrate through the two at least one guide parts from top to bottom, so that the long body can be axially displaced along the two at least one guide parts under the action of external force, the tops of the at least two bolts are respectively provided with a limiting part, and the two at least one guide parts are limited from upwards separating from the tops of the at least two bolts;
an action bolt which is in threaded connection from top to bottom and penetrates through the threaded connection part, and the bottom of the action bolt forms a butting part; and
the elastic piece fixing seat is provided with at least two elastic pieces which correspond to the at least two bolt pieces in quantity, each elastic piece is fixedly provided with a threaded piece, the at least two elastic pieces correspond to the at least two bolt pieces respectively, the bottoms of the at least two bolt pieces abut against the at least two elastic pieces, the at least two elastic pieces provide return elastic force after abutting against the at least two elastic pieces, and the at least two bolt pieces are in threaded connection with the at least two threaded pieces.
2. The heat dissipating module retaining device of claim 1, wherein: each bolt is provided with a spring, and each spring is sleeved on the bolt arranged on the spring and is positioned between the limiting part and the long body.
3. The heat dissipating module retaining device of claim 1, wherein: the long body is formed by overlapping two plate bodies.
4. The heat dissipating module retaining device of claim 1, wherein: the long body is formed by bending a plate body, the two ends of the long body extend downwards and then extend outwards and horizontally to form at least one guide part respectively, and the center of the long body bends downwards to form the screw connection part.
5. The heat dissipating module retaining device of claim 1, wherein: the bolt is characterized by further comprising a fixed seat, and the bottoms of the at least two bolts are fixedly arranged on the fixed seat.
6. The heat dissipating module retaining device of claim 1, wherein: further comprises pads with the same number as the at least two bolts, one side of each pad is provided with a long protruding wall extending downwards, and each pad is provided with a through hole; the at least two bolts respectively pass through the through hole of the gasket, so that each gasket is positioned between the limiting part of the at least two bolts and the long body, and the long convex wall of each gasket is positioned between the guide part and the screwing part.
7. A heat dissipation module with a fastening device, comprising:
a heat sink having a bottom plate and a plurality of fins arranged on the bottom plate, wherein the plurality of fins are combined with each other to form a through hole which is through from top to bottom in the center of the combination body;
a long body located above the bottom plate, both ends of which are respectively provided with at least one guide part, and the center of which is provided with a screw joint part;
at least two bolts movably penetrate through the two at least one guide parts from top to bottom, so that the long body can be axially displaced along the two at least one guide parts under the action of external force, the tops of the at least two bolts are respectively provided with a limiting part, and the two at least one guide parts are limited from upwards separating from the tops of the at least two bolts;
an action bolt which is in threaded connection from top to bottom and penetrates through the threaded connection part and also penetrates through the through hole, and the bottom of the action bolt forms an abutting connection part which abuts against the bottom plate; and
the elastic piece fixing seat is provided with at least two elastic pieces which correspond to the at least two bolt pieces in quantity, each elastic piece is fixedly provided with a threaded piece, the at least two elastic pieces correspond to the at least two bolt pieces respectively, the bottoms of the at least two bolt pieces abut against the at least two elastic pieces, the at least two elastic pieces provide return elastic force after abutting against the at least two elastic pieces, and the at least two bolt pieces are in threaded connection with the at least two threaded pieces.
8. The heat sink module with retaining device of claim 7, wherein: each bolt is provided with a spring, and each spring is sleeved on the bolt arranged on the spring and is positioned between the limiting part and the long body.
9. The heat sink module with retaining device of claim 7, wherein: the long body is formed by overlapping two plate bodies.
10. The heat sink module with retaining device of claim 7, wherein: the long body is formed by bending a plate body, the two ends of the long body extend downwards and then extend outwards and horizontally to form at least one guide part respectively, and the center of the long body bends downwards to form the screw connection part.
11. The heat sink module with retaining device of claim 7, wherein: further comprises a fixed seat, and the bottom parts of the at least two bolts are fixedly arranged on the fixed seat.
12. The heat sink module with retaining device of claim 7, wherein: further comprises pads with the same number as the at least two bolts, one side of each pad is provided with a long protruding wall extending downwards, and each pad is provided with a through hole; the at least two bolts respectively pass through the through hole of the gasket, so that each gasket is positioned between the limiting part of the at least two bolts and the long body, and the long convex wall of each gasket is positioned between the guide part and the screwing part.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510496922.0A CN106711111B (en) | 2015-08-13 | 2015-08-13 | Heat radiation module fastening device and heat radiation module with fastening device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510496922.0A CN106711111B (en) | 2015-08-13 | 2015-08-13 | Heat radiation module fastening device and heat radiation module with fastening device |
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| CN106711111A CN106711111A (en) | 2017-05-24 |
| CN106711111B true CN106711111B (en) | 2020-06-23 |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204905238U (en) * | 2015-08-13 | 2015-12-23 | 东莞泰硕电子有限公司 | Thermal module detains to hold device and have and detains thermal module who holds device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6724632B2 (en) * | 2002-07-18 | 2004-04-20 | Hon Hai Precision Ind. Co., Ltd. | Heat sink assembly with adjustable clip |
| US7375963B2 (en) * | 2006-04-11 | 2008-05-20 | International Business Machines Corporation | System and method for cooling a module |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204905238U (en) * | 2015-08-13 | 2015-12-23 | 东莞泰硕电子有限公司 | Thermal module detains to hold device and have and detains thermal module who holds device |
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| CN106711111A (en) | 2017-05-24 |
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