TWM614782U - Heat sink structure - Google Patents

Abstract

A radiator structure includes: a base, at least one heat dissipation unit; the base has a first side surface and a second side surface, the second side surface of the base extends at least one extension end, and the heat dissipation unit is provided There is a gap above the base and between the base; the extension end provides the heat dissipation unit horizontally and vertically for limiting or fixing, and the heat dissipation unit of different structures provides multiple heat dissipation characteristics to improve the overall Those with heat dissipation efficiency.

Description

Radiator structure

A radiator structure, in particular, a radiator structure in which different types of radiating fins are arranged through layered spacing or erection to increase the heat dissipation effect.

The radiator is a heat dissipation element that increases the heat dissipation area after heat conduction, and heat exchange occurs after a plurality of heat dissipation fins are in contact with the air, and then the heat is diffused outward in the form of heat radiation to achieve the purpose of heat dissipation.

For different heating sources, different sizes or types of radiators will be selected. When the power of the heating source is large, a radiator with an appropriate size and area will be selected according to the size of the space for heat dissipation. The existing general radiators are divided into aluminum Extruded heat sink fins or buckle stacked heat sink fins, but the spacing distance and height of each heat sink fins of these heat sinks are fixed and consistent, so that through the upper and lower sides and spacing of each heat sink The airflow will be restricted the same, so when the existing heat sink is attached to a heat source (such as a central processing unit or a graphics processing chip) to dissipate heat, and the heat is dissipated outside by the heat dissipation fins on it, The flow rate of the airflow blowing on the upper and lower fins is the same, and the heat energy taken away is relatively limited.

With the increase in the wattage and performance of electronic components, it is necessary to increase the heat dissipation area by increasing the number of heat dissipation fins of the existing heat sink and increasing the heat dissipation fins. However, in the limited space in the electronic device, if the heat dissipation fins are added The larger the number, the narrower the distance between adjacent cooling fins (that is, the distance between two adjacent cooling fins will be reduced), so that the airflow flowing through the cooling fins will suffer more resistance. The amount of air entering into the spacing of the heat dissipation fins will also be greatly reduced, resulting in poor heat dissipation efficiency. If the heat sink fins are increased If it is high, since the thickness of each heat dissipation fin is very thin, it is easy to cause deformation. If the thickness of each heat dissipation fin is increased, the number of heat dissipation fins will be reduced, which will lead to the problem of reduced heat dissipation area.

Therefore, in order to increase the heat dissipation efficiency, some companies use two independent heat sinks to directly stack or overlap each other to obtain more heat dissipation efficiency. However, this has caused other problems due to heat dissipation. The device is directly pressed against the part where the radiator fins of the other radiator are arranged. Because the radiator stacked on the upper side has weight, the radiator fins installed on the lower radiator will still be pressed by the weight of the radiator stacked on the upper side. If deformation occurs after placement, the structural strength problem of the heat dissipation fins remains unsolved.

Furthermore, a single fin configuration can only provide a single type of anti-heat performance. Most heat sources are located at the center of the radiator. Generally, a radiator with only a single configuration of heat dissipation fins is either at the periphery or The same heat dissipation area is provided in the center for heat dissipation and heat conduction. Because of the single fin shape, the distance between the fins is the same, and the flow length of the heat dissipation airflow through is also the same, so the heat dissipation airflow cannot be targeted. Some hotter areas provide more heat dissipation, so problems such as heat concentration and heat accumulation are likely to occur. How to solve the above-mentioned lack of conventional heat sinks is the primary goal of those skilled in the art.

Therefore, in order to effectively solve the above-mentioned problems, the main purpose of this creation is to provide a heat dissipation fin set that provides multiple heat dissipation characteristics by stacking in groups and layers, thereby providing multiple heat dissipation performance.

In order to achieve the above-mentioned purpose, this creation provides a radiator structure, which includes: a base and at least one heat dissipation unit; The base has a first side surface and a second side surface. The second side surface of the base extends at least one extension end correspondingly. The heat dissipation unit is arranged above the base and has a gap therebetween. The extension end provides horizontal and vertical fixation of the heat dissipation unit.

And by mounting a plurality of heat dissipation units in a layered manner or stacking towers above the base, and restricting or fixing the heat dissipation units in horizontal and vertical directions through at least one extension end, by different The structure of the heat dissipation unit provides a variety of different heat dissipation characteristics to achieve improved heat dissipation performance.

11: Pedestal

111: first side

112: second side

113: Extension

114: heat sink

12: Cooling unit

121: The first heat sink fin set

122: second heat sink fin set

121a: The first heat sink fin

121aa: first thickness

121ab: first spacing

122a: second heat sink fin

122aa: second thickness

122ab: second spacing

113a: first extension end

113b: second extension end

113c: third extension end

113d: The fourth extension

114: Carrying space

115: Support

Figure 1a is an exploded perspective view of the first embodiment of the radiator structure created; Figure 1b is another perspective exploded view of the first embodiment of the radiator structure created; Figure 1c is an exploded perspective view of the radiator created by the first embodiment Another three-dimensional exploded view of the first embodiment of the structure; Figure 1d is another three-dimensional exploded view of the first embodiment of the radiator structure created; Figure 2 is the three-dimensional assembled view of the first embodiment of the radiator structure created ; Figure 3 is a three-dimensional schematic diagram of the second embodiment of the radiator structure created; Figure 4 is a three-dimensional schematic diagram of the third embodiment of the radiator structure created; Figure 5 is the fourth embodiment of the radiator structure created The three-dimensional schematic diagram of the embodiment.

The above-mentioned purpose of this creation and its structural and functional characteristics will be described based on the preferred embodiments of the accompanying drawings.

Please refer to Figures 1a, 1b, 1c, 1d, and 2, which are the three-dimensional exploded and combined cross-sectional views of the first embodiment of the radiator structure of this creation. As shown in the figure, the radiator structure of this creation includes: a base 11 , At least one heat dissipation unit 12; The base 11 has a first side surface 111 and a second side surface 112. The second side surface 112 of the base 11 extends at least one extension end 113, and the extension end 113 can be formed by the circumference of the second side surface 112 of the base 11 It is configured to extend vertically upwards along or four pairs or at the center or any position. The present embodiment is implemented with a pair of plural extension ends 113 as an illustration, but it is not meant to be limited. The extension ends 113 have A first extension 113a and A second extension end 113b, a third extension end 113c, and a fourth extension end 113d. In this embodiment, the first, second, third, and fourth extension ends 113a, 113b, 113c, and 113d are separately arranged on the base. The four pairs of the base 11, but not to be taken as a limitation, can be only arranged on both sides of the base 11 as shown in Fig. 1b, or arranged at the center of the second side surface 112 as shown in Fig. 1c. The heat dissipation The unit 12 is combined and positioned with the base 11 through the extension section 113 in a series of sleeves, and the upwardly extending part of the first, second, third, and fourth extension ends 113a, 113b, 113c, 113d and the base 11 A supporting portion 115 is formed to define a bearing space 114 together. The supporting portion 115 may be independent of the first, second, third, and fourth extension ends 113a, 113b, 113c, 113d extending out of the configuration, or the The supporting portion 115 is in the form of a uniform temperature plate and is vertically connected to the first, second, third, and fourth extension ends 113a, 113b, 113c, and 113d. The upper and lower stacks of the heat dissipation unit 12 in the carrying space 114 (one upper and lower space) are arranged at intervals, but there is a gap between the heat dissipation units 12 in the vertical direction, so that the flow field of the heat dissipation airflow can be changed to enhance or guide The heat-dissipating airflow conducts heat exchange to the heat-dissipating unit 12 more smoothly.

The heat dissipating unit 12 is disposed above the base 11, and the heat dissipating unit 12 is disposed above the base 11 with a gap between the base 11 and the extending ends 113 provide the heat dissipating unit 12 in horizontal and vertical directions For limiting or fixing, the heat dissipation unit 12 is composed of a plurality of heat dissipation fins 121 arranged at intervals and formed by overlapping or snap-fitting each other to form a heat dissipation fin group, and the heat dissipation fin group is arranged in the carrying space 114 The supporting portion 115 can be used to fix or carry the heat dissipation fin group.

The supporting portion 115 on the extension end 113 is mainly formed by the extension end 113 in a convex or concave manner, and its main purpose is to locate the corresponding part of the heat dissipation unit 12 in a concave or convex manner. Fixed, so that the heat dissipation unit 12 can be fixed and positioned relative to the vertical and horizontal directions of the base 11, and the extended end 113 can further provide heat transfer from the heat absorbed by the base 11 to the heat dissipation unit 12 for use as heat conduction , The extension end 113 and the inside of the base 11 can be provided with a true heat exchange for two-phase flow. The airtight chamber, and the vacuum airtight chamber of the extension end 113 and the vacuum airtight chamber of the base 11 can be connected or not connected, and the vacuum airtight chamber can be further increased by the setting of the vacuum airtight chamber The heat transfer efficiency between the base 11 and the extension ends 113 further accelerates the heat transfer efficiency of the extension ends 113 to the heat dissipation unit 12.

The supporting portion 115 of this embodiment is represented in the form of a convex body formed by the extension end 113 extending in the direction of the carrying space 114.

The heat dissipation unit 12 of this embodiment is composed of a first heat dissipation fin group 121 and a second heat dissipation fin group 122, and the first and second heat dissipation fin groups 121, 122 are limited by the extension ends 113 The first and second heat dissipation fin groups 121, 122 can be arranged in a stacked manner in contact or non-contact manner. The first heat dissipation fin group 121 is composed of a plurality of A heat dissipation fin 121a is formed, and the first heat dissipation fins 121a have a first thickness 121aa, and the first heat dissipation fins 121a have a first spacing 121ab between them. The second heat dissipation fin group 122 It is composed of a plurality of second heat dissipation fins 122a, and all the second heat dissipation fins 122a have a second thickness 122aa, and there is a second distance 122ab between the second heat dissipation fins 122a, and the first thickness 121aa Greater or less than the second thickness 122aa, the first spacing 121ab is greater or less than the second spacing 122ab.

The first thickness 121aa and the second thickness 122aa of the first fin set 121 and the second fin set 122 can be set to be the same, but the first spacing 121ab is set to be greater than the second spacing 122ab, when the first fin set 121 and the second fin set 122 When a spacing 121ab is greater than the second spacing 122ab, the number of first heat dissipation fins 121a of the first fin group 121 is smaller and the first spacing 121ab is larger, which can increase the flow of the heat dissipation airflow into the first spacing 121ab, and the second spacing 121ab The distance 122ab is smaller than that of the second heat dissipation fin 122a of the second fin group 122, which can also provide more heat exchange area, so whether it is to increase the distance between the fins to increase the flow of heat dissipation airflow, or Reduce the distance between the fins in exchange for more fins to increase the heat exchange area, which is conducive to improving heat exchange Efficiency. The first fin set 121 and the second fin set 122 of this creation can provide more than two design combinations at the same time. Compared with the conventional heat sink, the pitch and the number of fins are fixed and cannot be changed. This creation The design provides more flexible fin configuration options.

One side of the first heat dissipation fin group 121 is flatly attached to the side of the base 11, the first fin group 121 is limited and fixed by the extension end 113 in the horizontal direction, and the first heat dissipation fin group 121 is in the vertical direction. Restricted and fixed by the supporting portion 115, one side of the second heat dissipation fin group 122 abuts against the supporting portion 115 for restriction and fixing, and its horizontal direction is restricted and fixed by the extension end 113, the base The base 11 has a heat dissipating portion 114 directly formed by the second side surface 112 of the base 11 directly extending upward, and stacked with the first and second heat dissipation fin sets 121 and 122 but spaced apart.

The heat absorbed by the base 11 can be directly transferred to the first heat-dissipating fin group 121 for deheating, and can also be transferred to the first heat-dissipating fin group 121 and the second heat-dissipating fin group 122 through the extension end 113, Alternatively, a heat pipe (not shown in the figure) can be used to pass through the base 11 at one end and pass through the first heat dissipation fin set 121 and the second heat dissipation fin set 122 at the other end, thereby enhancing the heat dissipation performance.

Since the first spacing 121ab of the first heat dissipation fin group 121 is wider than the second spacing 122ab, it has a smaller flow resistance, which can make the passing heat dissipation fluid preferentially flow to the first spacing 121ab, thereby changing the heat dissipation fluid Flow path.

Please refer to Figure 3, which is a three-dimensional schematic diagram of the second embodiment of the radiator structure of this creation. The difference between the aforementioned first embodiment is that the first heat dissipation fins 121a and the second heat dissipation fins 122a can have the same shape or different shapes. limit.

Please refer to Figure 4, which is a three-dimensional schematic diagram of the third embodiment of the radiator structure of this creation. Aforementioned The difference of the first embodiment is that the heights of the first heat dissipation fins 121a and the second heat dissipation fins 122a are the same or different.

Please refer to Figure 5, which is a three-dimensional schematic diagram of the fourth embodiment of the radiator structure of this creation. The difference of the foregoing first embodiment is that the first heat dissipation fin set 121 has at least one first air guide opening 121ac, and the first air guide opening 121ac is arranged on the windward side of the first heat dissipation fin group 121 (the heat dissipation airflow enters One side), it means that the first air guide opening 121ac is recessed inward from the windward side of the first heat dissipation fin set 121, so that the length of the first heat dissipation fin 121a where the first air guide opening 121ac is provided will be shorter than that of the first heat dissipation fin set 121. The length of the remaining first heat dissipation fins 121a provided with the first air guide opening 121ac, a channel with a shorter flow length is formed at the first air guide opening 121ac, so that the flow resistance there is smaller, and the heat dissipation fluid can be more concentrated on the first air guide opening 121ac. To provide better heat exchange efficiency, the first air guide opening 121ac can also be arranged on the left or right side of the windward side of the first heat dissipation fin set 121. In this embodiment, it is arranged close to the first heat dissipation fin set 121. The center on the windward side is implemented as an illustration, but it is not limited.

This creation will use different characteristics or different styles of heat dissipation fin sets to be stacked in layers (which can be directly contacted in full or part), and the heat dissipation fluid can be changed by different types of heat dissipation fins. The flow path provides different heat exchange efficiencies for different areas, thereby providing different heat dissipation characteristics for the heat source to dissipate heat. Moreover, because the radiator is used in a layered, spaced and stacked combination, the conventional radiator can be improved by adding heat dissipation fins. The heat dissipation area of the heat dissipation area extends the heat dissipation fins, resulting in loss of structural strength of the heat dissipation fins, etc., and the support 115 provides support and fixation to prevent problems such as deformation of the heat dissipation fins when the conventional heat sinks are stacked on each other and improve the overall heat dissipation efficiency .

11: Pedestal

111: first side

112: second side

113: Extension

12: Cooling unit

121: The first heat sink fin set

122: second heat sink fin set

121a: The first heat sink fin

121aa: first thickness

121ab: first spacing

122a: second heat sink fin

122aa: second thickness

122ab: second spacing

113a: first extension end

113b: second extension end

113c: third extension end

113d: The fourth extension

114: Carrying space

115: Support

Claims (10)

A radiator structure includes: a base having a first side surface and a second side surface, the second side surface of the base correspondingly extends at least one extension end; at least one heat dissipation unit, the extension end provides the heat dissipation unit The position is limited or fixed in the horizontal and vertical directions, and the heat dissipation unit is arranged above the base with a gap therebetween. According to the radiator structure described in the first item of the patent application, the heat dissipating unit group is arranged with a plurality of heat dissipating fins spaced apart from each other and combined by overlapping or snapping. According to the radiator structure described in claim 1, wherein the extension ends have a first extension end, a second extension end, a third extension end, and a fourth extension end. The, three and four extension ends are separately arranged on the four pairs of the base. According to the radiator structure described in item 1 of the scope of patent application, there is a supporting portion between the upwardly extending portions of the extension ends and the base, and the supporting portion can be used for fixing or supporting the heat dissipation fin group. As for the heat sink structure described in claim 1, wherein the heat dissipating unit is composed of a first heat dissipating fin group and a second heat dissipating fin group, and the first and second heat dissipating fin groups pass through the The upper and lower extension ends are stacked and fixed. The first heat dissipation fin group is composed of a plurality of first heat dissipation fins, and all the first heat dissipation fins have a first thickness. The first heat dissipation fins There is a first spacing between the fins, the second heat dissipation fin group is composed of a plurality of second heat dissipation fins, and all the second heat dissipation fins have a second thickness, and the second heat dissipation fins have a A second pitch, the first thickness is larger or smaller than the second thickness, the first pitch is larger or smaller than the second pitch, and the first and second heat dissipation fin groups have a gap between each other in the vertical direction. For the heat sink structure described in item 5 of the scope of patent application, the first heat dissipation fins and the second heat dissipation fins have the same or different shapes. For the heat sink structure described in item 5 of the scope of patent application, the heights of the first heat dissipation fins and the second heat dissipation fins are the same or different. According to the radiator structure described in the first item of the scope of the patent application, the extension end is configured by the vertical extension of the periphery or the quadrant or the center of the second side surface of the base. According to the radiator structure described in item 1 of the scope of patent application, a vacuum chamber capable of two-phase flow heat exchange is provided inside the base and the extension end, and the vacuum chamber at the extension end can be selected The vacuum chamber and the vacuum chamber of the base are connected or disconnected. According to the radiator structure described in claim 1, wherein the base has a heat dissipation portion, and the heat dissipation portion is directly formed by directly extending upward from the second side surface of the base.

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