CN217691142U

CN217691142U - Uniform force structure of heat dissipation seat

Info

Publication number: CN217691142U
Application number: CN202221346001.8U
Authority: CN
Inventors: 刘雪辉; 李磊
Original assignee: Asia Vital Components Shenzhen Co Ltd
Current assignee: Asia Vital Components Shenzhen Co Ltd
Priority date: 2022-05-31
Filing date: 2022-05-31
Publication date: 2022-10-28
Anticipated expiration: 2032-05-31

Abstract

The utility model relates to a force balancing structure of a heat radiation seat, which comprises a heat radiation seat, an adjusting piece and a pressing piece; the heat radiation seat is provided with an upper side surface and a lower side surface, at least one through hole is arranged at the four corners, the through hole penetrates through the screw lock component to fix the heat radiation seat above the heating source, the lower side surface of the heat radiation seat is contacted with the heating source, the upper side surface protrudes the convex column, and the shaft lever penetrates through the convex column towards the radial direction of the convex column and protrudes out of the surface of the convex column; the pressing piece is provided with an upper side, a lower side and a through hole, the pressing piece is arranged on the upper side surface of the heat dissipation seat, the through hole penetrates through the upper side and the lower side of the pressing piece, and the pressing piece is correspondingly sleeved on the outer side of the convex column through the through hole; the adjusting piece is provided with a hollow cylinder body, two ends of the hollow cylinder body are open and sleeved outside the convex column exposed out of the pressing piece, the outer edge of the hollow cylinder body is provided with a force making part, a sliding groove part and the shaft rod in sliding fit, and the hollow cylinder body axially displaces along the convex column so that the adjusting piece forces the pressing piece to generate uniform downward pressure towards the center of the heat radiating seat.

Description

Uniform force structure of heat dissipation seat

Technical Field

The utility model relates to a radiating seat homodyne structure especially relates to a radiating seat homodyne structure that increases radiating seat or heat-conducting component and the source that generates heat more evenly laminates.

Background

The heat conduction assembly and the heat dissipation assembly are usually used as a matching combination for contacting with a heat source to conduct heat, and a base with better heat conductivity is usually selected for the heat conduction assembly, and then a heat pipe or a temperature equalization plate is matched to uniformly conduct or conduct heat generated by the heat source to a remote place for heat dissipation, however, the heat pipe or the temperature equalization plate needs to be fixed through the base or the base is fixed with a fixing base arranged around the heat source.

Referring to fig. 1a and 1b, which are schematic diagrams of a conventional heat dissipation module, a conventional motherboard has at least one heat source 1, and is correspondingly contacted with the heat source 1 through a heat sink to provide heat dissipation, in order to enable the heat sink to be fixedly assembled with the heat source 1, a fixing base 2 is disposed around the heat source 1, and after the four corners of the heat sink are correspondingly locked and combined with the fixing base 2 through a screw lock manner, the heat sink 4 and the heat source 1 are bonded and thermally conducted to dissipate heat.

In order to provide the high-performance computing capability of the electronic device, a high-performance and high-power chip is adopted, when the chip is used for computing, quite high heat is generated, a packaging shell is arranged outside the traditional computing chip to wrap the chip on the inner wall of the chip so as to prevent the chip from being damaged, as the computing performance of the chip is improved, the chip generates higher temperature than the traditional chip when computing, and as the packaging shell packaged outside the chip influences the heat dissipation and outward heat conduction efficiency of the chip, most of the chips are arranged in a bare chip shape, the surfaces of the chips are not provided with the protective packaging shell, and the surface of the bare chip is not a flat surface, so that when the radiator is fixed above the heat source 1 (bare chip), the locking point position and the locking force are required to be adjusted one by one when the radiator is in contact with the heat source 1, the assembly work is the operation of screwing by operating an electric screw driver through a manual or mechanical arm, the speed of the assembly work in production on line is quite high, so that the fixing screws can not be locked in the diagonal direction one by one and the locking force can not be adjusted one by one, each fixing screw is quickly locked in place once, the phenomenon that the stress on four corners is uneven is easily caused, the radiator can not be completely leveled and pasted above the heating source 1, and whether the locking force between the radiator and the heating source 1 is proper or not is ensured.

Furthermore, the locking is not performed in a diagonal manner, which easily causes only four corners of the heat sink to be tightly combined and attached with the fixing base 2, and the heat source 1 correspondingly located at the center of the heat sink is deformed due to the upward protrusion of the center of the heat sink caused by the downward pressure around the heat sink, so that the gap between the heat source 1 and the center of the heat sink is not tightly attached due to the upward arching, which causes uneven heating or thermal conduction failure, and furthermore, if the one-time direct downward locking force of the heat sink is too large, the bare die is easily cracked and damaged.

Therefore, how to improve the heat sink and closely adhere to the heat source 1 in a complete and comprehensive manner is the first goal of the business.

SUMMERY OF THE UTILITY MODEL

Therefore, in order to effectively solve the above-mentioned problems, the present invention provides a heat sink force equalizing structure for increasing the heat sink to more comprehensively generate uniform downward pressure and to closely adhere to a heat source.

The utility model provides a heat dissipation seat is structure of exerting oneself equally, a serial communication port contains:

a heat dissipation seat having an upper side and a lower side, at least one through hole being provided at four corners of the heat dissipation seat, a screw lock assembly being inserted through the through hole for fixing the heat dissipation seat above a heat source, the lower side of the heat dissipation seat contacting the heat source, a convex column protruding from the upper side, a shaft rod radially penetrating the convex column along the convex column and protruding out of the outer edge of the convex column;

the pressing piece is provided with an upper side, a lower side and a through hole, the pressing piece is arranged on the upper side surface of the heat radiating seat, the through hole penetrates through the upper side and the lower side of the pressing piece, and the pressing piece is correspondingly sleeved on the outer side of the convex column through the through hole;

the adjusting piece is provided with a hollow cylinder body, two ends of the hollow cylinder body are open and are sleeved outside the convex column, the outer edge of the hollow cylinder body is provided with a sliding groove part and a force application part, the shaft lever is in sliding fit with the sliding groove part, the force application part of the adjusting piece is operated to force the hollow cylinder body to rotate and the shaft lever slides along the sliding groove part, so that the hollow cylinder body axially moves along the convex column, and the pressing piece is forced by the adjusting piece to generate uniform downward pressure to the center of the radiating seat.

The even power structure of radiating seat, wherein: the heat sink is correspondingly locked and combined with a fixed base, a circuit substrate or a heat conducting component.

The even power structure of radiating seat, wherein: the pressed piece is a plate body or a sheet body or a strip body or a frame body which is in a straight shape, a cross shape, an X shape, an n shape or a square shape.

The even power structure of radiating seat, wherein: the pressing piece is arranged at the center of the upper side surface of the heat radiating seat.

The even power structure of radiating seat, wherein: the sliding groove part is provided with a first spiral groove channel and a second spiral groove channel, the first spiral groove channel and the second spiral groove channel correspond to each other, the first spiral groove channel and the second spiral groove channel are respectively provided with a first end, a second end and a spiral groove, the first end is located at the highest point of the first spiral groove channel and the second spiral groove channel, the second end is located at the lowest point of the first spiral groove channel and the second spiral groove channel, the first end and the second end are respectively arranged at two ends of the spiral groove channel, the first end and the second end are connected through the spiral groove channel, the tail end of the first end is provided with a first positioning point, the tail end of the second end is provided with a second positioning point, and the difference between the first spiral groove channel and the second spiral groove channel is 180 degrees.

A heat sink force equalizing structure, comprising:

a heat dissipation seat having an upper side and a lower side, at least one through hole being provided at four corners of the heat dissipation seat, a screw lock assembly being inserted through the through hole to fix the heat dissipation seat above a heat source, the lower side of the heat dissipation seat contacting the heat source, a convex column protruding from the upper side, a pair of convex bodies vertically protruding from two sides of the outer edge of the convex column;

the pressing piece is provided with an upper side, a lower side and a through hole, the pressing piece is arranged on the upper side surface of the heat dissipation seat, the through hole penetrates through the upper side and the lower side of the pressing piece, and the pressing piece is correspondingly sleeved on the outer side of the convex column through the through hole;

the adjusting piece is provided with a hollow cylinder body, two ends of the hollow cylinder body are open and are sleeved outside the convex column, the outer edge of the hollow cylinder body is provided with a sliding groove part and a force application part, the convex body is in sliding fit with the sliding groove part, the force application part of the adjusting piece is operated to force the hollow cylinder body to rotate and the convex body slides along the sliding groove part, so that the hollow cylinder body axially displaces along the convex column and the adjusting piece forces the pressing piece to generate uniform downward pressure towards the center of the heat dissipation seat.

The utility model mainly provides a homogeneous force structure of even atress radiating seat between multiplicable radiating seat and the source that generates heat, borrow this and make heat-conduction more even heat conduction to effectively improve the problem that the department of not closely laminating produces the thermal resistance.

Drawings

FIG. 1a is a schematic diagram of a conventional structure;

FIG. 1b is a schematic cross-sectional view of a prior art structure;

fig. 2 is an exploded perspective view of a first embodiment of a heat sink force equalizing structure according to the present invention;

fig. 3a is a combined cross-sectional view of the first embodiment of the heat sink force equalizing structure of the present invention;

fig. 3b is a combined cross-sectional view of the first embodiment of the heat sink force equalizing structure of the present invention;

fig. 4 is an exploded view of a second embodiment of the heat sink force equalizing structure of the present invention.

The reference numbers illustrate: a heat generating source 1; a fixed seat 2; a heat radiation seat 3; an upper side surface 31; a convex column 311; a shaft 312; a lower side 32; a perforation 33; an accommodating space 35; an adjustment member 4; a hollow barrel 41; a slide groove portion 411; a first spiral channel 411a; the second spiral channel 411b; a first end 4111; a first localization point 4111a; a second end 4112; a second location point 4112a; the force section 412; a pressed piece 5; an upper side 5a; a lower side 5b; a through hole 51; a screw lock assembly 6; a heat generating source 7; a heat conducting component 8; the base 9 is fixed.

Detailed Description

The above objects, together with the structural and functional features thereof, will be best understood from the following description of the preferred embodiment when read in connection with the accompanying drawings.

Please refer to fig. 2, fig. 3a, and fig. 3b, which are three-dimensional exploded and assembled cross-sectional views of the heat sink uniform-force structure of the present invention, as shown in the drawings, the heat sink uniform-force structure of the present invention comprises: a heat dissipation base 3, an adjustment member 4, a pressing member 5;

the heat dissipating base 3 has an upper side 31 and a lower side 32, the four corners are provided with at least one through hole 33, a screw lock assembly 6 is inserted into the through hole 33 to fix the heat dissipating base 3 above a heat source 7, the lower side 32 of the heat dissipating base 3 contacts the heat source 7, the upper side 31 protrudes a convex column 311, and a shaft 312 is vertically arranged, the shaft 312 penetrates the convex column 311 in the radial direction of the convex column 311 and protrudes the surface of the convex column 311.

The heat sink 3 is correspondingly locked and combined with a fixing base, a circuit board or a heat conducting component.

The shaft 312 may be replaced by a pair of protrusions integrally formed to extend perpendicularly outward from the outer peripheral surface of the post 311.

The pressed piece 5 has an upper side 5a and a lower side 5b and a through hole 51, the pressed piece 5 is disposed at the center of the upper side 31 of the heat sink 3, the through hole 51 penetrates the upper and

lower sides

5a, 5b of the pressed piece 5, the pressed piece 5 is correspondingly sleeved outside the convex column 311 through the through hole 51, and the pressed piece 5 is a plate body or a sheet body or a strip body or a frame body in a shape of a straight line, a cross, an X, an n, or a square.

The adjusting member 4 has a hollow barrel 41 with two open ends sleeved outside the protruding pillar 311, the outer edge of the hollow barrel 41 has a sliding slot 411 and a force-applying portion 412, the force-applying portion 412 can be in the form of a pick or a shaft, the shaft 312 is slidably engaged with the sliding slot 411, the sliding slot 411 has a first spiral slot 411a and a second spiral slot 411b, and the first and second spiral slots 411a, 411b have a first end 4111 and a second end 4112 and a spiral slot 4113, respectively, the first end 4111 is located at the highest point of the first and second spiral slots 411a, 411b, the second end 4112 is located at the lowest point of the first and second spiral slots 411a, 411b, the first and second ends 4111, 4112 are separately located at two ends of the spiral slot 4113, and the first and second ends 4111, 4112 are connected by the spiral slot 4113, the first end 4111 has a first positioning point 4111a at the end thereof, the second end 4112 has a second positioning point 4112a at the end thereof, the first and second spiral grooves 411a, 411b are different from each other by 180 degrees, the first end 4111 is the top point of the sliding slot 411 and is located near the top end of the hollow cylinder 41, the second end 4112 is the bottom dead point of the sliding slot 411 and is located near the bottom end of the hollow cylinder 41, the force portion 412 of the adjusting member 4 is operated to force the hollow cylinder 41 to rotate and the shaft 312 to slide along the sliding slot 411, when the shaft 312 slides from the second end 4112 (bottom dead point) of the sliding slot 411 to the first end 4111 (top dead point) of the sliding slot 411, the hollow cylinder 41 is axially displaced along the stud 311 and the lower end of the adjusting member 4 presses against the pressing member 5, so that the pressing member 5 generates a uniform downward pressure toward the center of the heat sink 3, the downward pressure of the pressing member 5 on the heat sink 3 can be finely adjusted by the adjusting member 4, so as to prevent the heat source 7 (bare die) from being damaged due to the excessive downward pressure applied at one time, and the whole downward pressure between the center of the heat sink 3 and the heat source 7 can be increased by the pressing member 5.

Referring to fig. 4, an exploded perspective view of a second embodiment of the heat sink of the present invention is shown, and this embodiment is the same as the first embodiment and will not be described herein, but the difference between this embodiment and the first embodiment lies in that an accommodating space 35 is provided between the heat sink 3 and the heat source 7, wherein at least one heat conducting element 8 is provided in the accommodating space 35, the heat conducting element 8 is stacked above the heat source 7, the pressing member 5 can force the heat sink 3 to generate a uniform downward force, so that the heat conducting element 8 can be more tightly combined with the heat source 7, the heat conducting element 8 is a heat pipe or a temperature equalizing plate, and this embodiment uses a heat pipe as an illustrative embodiment, but does not limit the heat pipe.

Referring to fig. 2, 3a and 3b, as shown in the figures, after the through holes 33 at the four corners of the heat sink 3 are penetrated through by a screw unit 6, the heat sink 3 is fixedly combined with a fixing base 9, the adjusting member 4 is pushed to operate the hollow cylinder 41 to press the pressing member 5, and since the sliding groove 411 of the hollow cylinder 41 is in sliding fit with the shaft 312, when the force-applying portion 412 of the adjusting member 4 is operated, the hollow cylinder 41 is forced to rotate, the sliding groove 411 is guided by the shaft 312, the hollow cylinder 41 is axially moved, the pressing member is pressed downward, the pressing member 6 generates uniform downward pressure to the center of the heat sink 5, so that the heat sink 3 can be tightly attached to the heat source 7 without generating a gap to improve the heat conduction efficiency, and since the adjusting member is slowly adjusted, sudden over-applied pressure of the heat sink 3 to cause bare damage to the heat source 7 (crystal) can also be avoided.

The utility model mainly provides an even atress between multiplicable radiating seat 3 and the source 7 that generates heat, borrow this and make more even heat conduction of heat-conduction to effectively improve the problem that the department of not closely laminating produces the thermal resistance.

Claims

1. A heat sink force equalizing structure, comprising:

2. The heat spreader biasing structure of claim 1, wherein: the heat sink is correspondingly locked and combined with a fixed base, a circuit substrate or a heat conducting component.

3. The heat spreader biasing structure of claim 1, wherein: the pressed piece is a plate body or a sheet body or a strip body or a frame body which is in a straight shape, a cross shape, an X shape, an n shape or a square shape.

4. The heat sink force equalizing structure of claim 1, wherein: the pressing piece is arranged at the center of the upper side surface of the heat radiating seat.

5. The heat spreader biasing structure of claim 1, wherein: the sliding groove part is provided with a first spiral groove channel and a second spiral groove channel, the first spiral groove channel and the second spiral groove channel correspond to each other, the first spiral groove channel and the second spiral groove channel are respectively provided with a first end, a second end and a spiral groove, the first end is located at the highest point of the first spiral groove channel and the second spiral groove channel, the second end is located at the lowest point of the first spiral groove channel and the second spiral groove channel, the first end and the second end are respectively arranged at two ends of the spiral groove channel, the first end and the second end are connected through the spiral groove channel, a first positioning point is arranged at the tail end of the first end, a second positioning point is arranged at the tail end of the second end, and the difference between the first spiral groove channel and the second spiral groove channel is 180 degrees.

6. A heat sink force equalizing structure, comprising: