TWM502818U - Heat sink with hidden isothermal plate - Google Patents

Description

Radiator with hidden uniform temperature plate

The present invention relates to a heat sink; in particular, to a revealer of an innovative structural type of a heat sink having a hidden uniform temperature plate.

According to the conventional heat sink structure design, a metal block (such as an aluminum block) having better thermal conductivity is generally widely used as a main heat dissipating medium, and the heat sink is usually provided with a heat receiving surface for the heat source to be placed in contact with each other.

In order to obtain the effect of rapid average diffusion when the heat temperature of the heat source is derived, the industry has reassembled a temperature equalizing plate on the heating surface of the heat sink to utilize the soaking function of the temperature equalizing plate to achieve the aforementioned effect; However, it is found that this kind of conventional structure still has some problems and shortcomings in practical application experience. For example, when the heating surface of the conventional heat sink is provided with a temperature equalizing plate, the uniform temperature plate is convex. The appearance of the heat sink is such that the heat-receiving surface of the heat sink has an uneven shape. Therefore, when applied as a heat dissipation structure of the LED lamp, it is obviously inconvenient for the assembly of the LED, which is due to the LED. The setting type is quite diverse, and in addition to the type change of the circuit board of the LED, there is a variability in the number of settings, and relatively speaking, the setting of the temperature equalizing plate is rather inconvenient.

Therefore, in view of the problems existing in the above-mentioned conventional radiator structure, how to develop an innovative structure that can be more ideal and practical, and the relevant industry should further consider the goal and direction of breakthrough.

In view of this, the creator has been engaged in the manufacturing development and design experience of related products for many years. After detailed design and careful evaluation, the author has finally achieved a practical and practical creation.

The main purpose of this creation is to provide a heat sink with a hidden uniform temperature plate. The technical problem to be solved is to think about how to develop a new radiator structure with more ideal and practicality. .

The technical feature of the present invention is that the heat sink comprises: an extruded heat sink, comprising a heat dissipating portion and a heat source group surface for at least one heat source group to be contacted, wherein the heat sink portion is integrated Extrusion forming a heat dissipating fin disposed at intervals, each of the heat dissipating fins is oppositely defined to form an extruded groove extending through the end of the extruded heat sink; at least one recessed uniform temperature chamber is recessed in the extruded heat sink The heat source group of the seat is provided with a heat source assembly portion, and the concave concave temperature chamber is provided with a support body, a capillary structure and a working fluid, and the top end is closed and closed by a cover plate to form a vacuum sealed chamber. The welding joint portion is disposed in an annular shape between the periphery of the cover plate and the concave-type uniform temperature chamber, and the welded joint portion is used for closing and sealing the cover plate, thereby The concave uniform temperature chamber, the support body, the capillary structure, the working fluid, the cover plate and the welded joint portion constitute a hidden type uniform temperature plate structure; and wherein the top surface of the cover plate and the heat source group of the extruded heat sink seat are provided The flatness is the same, smooth and flat States.

The effect and advantages of the present invention are mainly to integrate the technical features of the concave-type uniform temperature chamber by the heat source assembly surface of the extruded heat sink, so that when the heat sink is applied as the heat dissipation structure of the LED lamp, because of its extrusion The heat source assembly surface of the type heat sink and the top surface of the cover plate have a flat surface type, so that the convenience of assembling the LED assembly and the convenience of the uniform temperature plate structure setting are greatly improved, and the utility model has the practical and progressive benefits.

Please refer to Figures 1, 2 and 3 for a preferred embodiment of the heat sink with a hidden uniform temperature plate. However, these embodiments are for illustrative purposes only and are not subject to this structure in patent applications. The heat sink A includes the following components: an extruded heat sink 10 (which may be an aluminum extruded block), including a heat dissipating portion 11 and a heat source for contacting at least one heat source 05 The heat dissipating portion 11 is formed integrally with the heat dissipating fins 13 , and the heat dissipating fins 13 are oppositely defined to form a squeezing groove 14 extending through the end of the extruded heat sink 10 . At least one recessed uniform temperature chamber 21, recessed in the heat source assembly surface 12 of the extruded heat sink 10 for the heat source 05 assembly portion, the concave concave temperature chamber 21 is internally provided with a support body 22, capillary The structure 23 and the working fluid 24 are closed by a cover plate 25 to form a vacuum sealed chamber; the welded joint portion 30 is disposed between the periphery of the cover plate 25 and the concave concave temperature chamber 21 In the form of the welding joint 30, the cover of the cover plate 25 is brought into a closed and tight state, and the recessed type can be The cavity 21, the support body 22, the capillary structure 23, the working fluid 24, the cover plate 25 and the welded joint 30 form a concealed temperature equalizing plate 20 structure; and wherein the top surface of the cover plate 25 and the heat source of the extruded heat sink 10 Between the set faces 12, the flat faces of the same height are smoothly connected (as shown in Fig. 3).

As shown in FIG. 3 and FIG. 4 , the heat sink A further includes at least two interposer heat dissipation sheets 40 (which may be copper sheets), and the interposer type heat dissipation sheets 40 are arranged at intervals and extended. The interposer is positioned in the heat dissipating portion 11 of the extruded heat sink 10. The thickness of the interposer heat dissipating plate 40 is a thin plate type between 0.2 mm and 0.9 mm, and each of the interposer heat dissipating plates 40 is provided with a space. The inserting inserts 41 are configured to be inserted into the extruded grooves 14 formed between the heat dissipating fins 13 , and the interposing heat dissipating thin plates 40 are arranged to extend laterally toward the extruded heat sink 10 . a type, and a lateral ventilation channel 50 is formed between each of the interposer heat dissipation sheets 40; and at least a partial insertion piece 41 of the interposer type heat dissipation sheet 40 and a corresponding groove of the extrusion groove 14 are further A venting gap 60 is provided which communicates with the extruded channel 14 of the extruded heat sink 10 to form an end venting channel.

The extension fins of the heat dissipation fins 13 and the extruded trenches 14 with respect to the heat source assembly surface 12 may be disposed in a vertical angle relationship or a radial configuration.

Wherein, the welded joint portion 30 can be a stir welding type.

As shown in FIG. 3, the end protruding shape of the entire heat dissipating fin 13 of the extruded heat sink 10 can be set to a mountain shape with short sides and a long middle, and the middle is long. The heat radiating fins 13 are associated with the center position of the heat source 05 (shown in FIG. 1) provided in the heat source grouping surface 12.

Efficacy Description: The "heat sink with hidden uniform temperature plate" disclosed in this work mainly uses the innovative unique structure and technical features of the extruded heat sink, concave concave temperature chamber and welded joint. In view of the conventional structure proposed in the prior art, the technical feature of the concave-type uniform temperature chamber can be integrated by the heat source assembly surface of the extruded heat sink, because the concave-shaped uniform temperature chamber The top surface of the cover plate and the heat source assembly surface of the extruded heat sink have a flat surface shape of the same height and smooth connection. When the heat sink is used as the heat dissipation structure of the LED lamp, because of the extruded heat sink The heat source group setting surface and the top surface of the cover plate are in a flat surface type, so that the convenience of assembling the LED assembly and the convenience of the uniform temperature plate structure setting are greatly improved, and the utility model has the practical and progressive benefits.

The disclosures of the above embodiments are specifically intended to illustrate the present invention, and although the descriptions are made by specific terms, the scope of patents of the present invention cannot be limited thereto; those skilled in the art can understand the spirit of the creation. The principles are changed and modified to achieve an equivalent purpose, and such changes and modifications are to be included in the scope defined by the scope of the patent application as described later.

A‧‧‧ Radiator 05‧‧‧Heat source 10‧‧‧Extrusion heat sink 11.‧‧Dissipation part 12‧‧‧Heat source set surface 13‧‧‧V heat sink fin 14‧‧‧Extrusion groove 20‧‧‧Concealed uniform temperature plate 21‧‧‧Concave uniform temperature chamber 22‧‧‧Support body 23‧‧‧Capillary structure 24‧‧‧Working liquid 25‧‧‧ Cover 30‧‧‧ Welding joint 40‧‧‧Incorporated heat-dissipating sheets 41‧‧‧ Inserts 50‧‧‧ Lateral ventilation runners 60‧‧‧ Ventilation gap

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is an exploded perspective view of the preferred embodiment of the present invention. Figure 2 is a perspective view of the structural combination of the preferred embodiment of the present invention. Figure 3 is a cross-sectional view showing the structure of the preferred embodiment of the present invention. Fig. 4 is an exploded perspective view of the embodiment in which the heat sink of the present invention further includes an interposer type heat sink. Figure 5 is a combined perspective view of the embodiment of Figure 4. Figure 6 is a diagram showing an embodiment of the heat sink fin of the present invention in a radial pattern.

A‧‧‧heatsink

05‧‧‧heat source

10‧‧‧Extrusion type heat sink

11‧‧‧ Department of heat dissipation

12‧‧‧Heat source set up

13‧‧‧Heat fins

14‧‧‧Extrusion groove

20‧‧‧Hidden temperature equalization board

21‧‧‧ concave concave temperature chamber

22‧‧‧Support

23‧‧‧Muscle tissue

25‧‧‧ Cover

Claims (5)

A heat sink with a hidden temperature equalizing plate, the heat sink comprising: an extruded heat sink, comprising a heat dissipating portion and a heat source group surface for at least one heat source group to be contacted, wherein the heat sink portion The heat dissipating fins are arranged at intervals, and the heat dissipating fins are oppositely defined to form an extruded groove extending through the two ends of the extruded heat sink; at least one recessed uniform temperature chamber is recessed in the heat source of the extruded heat sink The set surface is provided for the heat source assembly portion, the concave concave temperature chamber is provided with a support body, a capillary structure and a working fluid, and the top end is closed by a cover plate to form a vacuum sealed chamber; The joint portion is disposed in an annular shape between the periphery of the cover plate and the concave-type uniform temperature chamber, and the welded joint portion is used for closing and sealing the cover plate, and the concave portion can be adopted by the concave portion The uniform temperature chamber, the support body, the capillary structure, the working fluid, the cover plate and the welded joint portion constitute a hidden uniform temperature plate structure; and wherein the top surface of the cover plate and the heat source assembly surface of the extruded heat sink seat are presented The flat surface type with the same height and smooth connection. The heat sink with a hidden temperature equalizing plate according to claim 1, wherein the heat sink further comprises at least two interposer heat dissipating sheets, and the interposer type heat dissipating sheets are arranged at intervals and extended and expanded. The state interposer is positioned in the heat dissipating portion of the extruded heat sink, and the thickness of the plug type heat dissipating thin plate is a thin plate type between 0.2 mm and 0.9 mm, and each of the plug type heat dissipating thin plates is provided with a spacer arrangement. The chip is adapted to be inserted into the extruded groove formed between the heat dissipating fins, and the plug-in heat dissipating thin plates are configured to extend laterally toward the extruded heat sink, and each of the plugs is configured to dissipate heat. A lateral ventilation flow path is formed between the thin plates; and at least a partial insertion piece of the insertion type heat dissipation thin plate and a corresponding extruded groove bottom are further provided with a ventilation gap, and the ventilation gap and the extruded heat dissipation The extruded grooves of the seat communicate to form an end-venting flow passage. The heat sink with a hidden uniform temperature plate according to claim 2, wherein each of the heat dissipating fins and the extruded groove are perpendicularly or radially arranged with respect to a surface of the heat source assembly surface. Type. The heat sink with a hidden uniform temperature plate according to claim 3, wherein the welded joint is a stir welding type. The heat sink with a hidden uniform temperature plate according to the fourth aspect of the patent application, wherein the extruded heat sink fin has an end protruding shape, which is set to a mountain shape with short sides and a long middle portion. In the aspect, the intermediate long fins correspond to the center position of the heat source set by the heat source group.