JP2008294177A - Heat conduction sheet - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide this invention relating to a heat conduction sheet mainly consisting of a cavity of a hollow shape and plural covers. <P>SOLUTION: The cavity of the hollow shape is created by an integrally fabricated aluminum impact extrusion, while installing a storage section of a hollow shape inside the cavity, a plurality of angle bars for raising a heat dissipation effect are installed at a side surface inside the storage section of the hollow shape. Plural spacer ribs are installed so that the storage section of the hollow shape may be divided into plural penetrated housing spaces, and are used for housing liquid contributed for improving the heat dissipation effect. Further, plural rails are installed at one side of the cavity of the hollow shape. Engaging grooves are installed at right-left both sides thereof, respectively. The plural heat conduction sheets are inserted in a rail installed at one side of the heat conduction sheet by utilizing the engaging grooves at the right-left both sides to raise the heat dissipation effect. A circuit of a printed circuit substrate is printed at another side of the cavity of the hollow shape. If electronic parts are soldered to the printed circuit substrate at one side of the heat conduction sheet, it becomes possible to directly raise an optimal heat dissipation effect. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

The present invention relates to a heat conductive sheet, and more particularly to a heat radiating device created by aluminum impact extrusion formed into an integral molding.

A conventional heat radiating device is composed of a heat radiating fin plate, a heat conduction pipe, and a pedestal body. When this type of method is carried out, there are the following problems.

1. Most conventional heat dissipating devices have fans for heat dissipating, but it is not satisfactory when limited to the efficiency of heat dissipating fins.

2. The conventional heat dissipation device assembles several parts, heat absorption plate and heat conduction pipe to absorb heat as a pedestal body, and the material of the parts is mostly plastic and cannot transfer heat to each other, the heat absorption plate in the pedestal body If the heat transfer is attempted only with the heat transfer pipe, the heat transfer rate is limited.

3. Most of the heat sinks of the conventional heat dissipation device are attached with a packed plate material, and most of the material is copper, but if the heat sink plate does not dissipate the amount of heat radiated continuously by circulating heat energy, Speed will be limited.

In the present invention, a “thermal conductive sheet” is provided, a high efficiency heat dissipation effect is achieved by the design, and an ideal thermal conductive sheet is added or combined according to personal needs. The main purpose of the invention is to adapt the heat dissipation effect.

The technical method operated in the present invention is to provide a heat conductive sheet, which mainly includes a hollow cavity and several lids, of which the hollow cavity is formed by integral aluminum impact extrusion. Created and has a hollow storage part inside, installed on the side surface in the hollow storage part several square bars used to enhance the heat dissipation effect, and provided a plurality of spacer ribs to provide a hollow storage part The section is divided into a plurality of penetrating storage spaces, and is used to store a liquid that can contribute to improving the heat dissipation effect. In addition, multiple rails are installed on one side of the hollow cavity, and locking grooves are installed on both the left and right sides, and several heat conductive sheets are fitted to the rails installed on one side of the heat conductive sheet with the locking grooves on the left and right sides. In addition to increasing the heat dissipation efficiency by increasing the connection of the thermal conductive sheet, the circuit of the printed circuit board is printed on the other side, and the electronic component is soldered to the circuit of the printed circuit board on one side of the thermal conductive sheet Then, the optimal heat dissipation effect can be improved.

  The heat conductive sheet of the present invention can mainly achieve the following effects.

1. Increase heat dissipation efficiency. The hollow cavity of the heat conductive sheet of the present invention is formed by aluminum impact extrusion that is integrally molded, and has a hollow storage portion inside, and has a hollow storage portion inside, and has a hollow shape. Several square bars used to enhance the heat dissipation effect are installed on the side surface inside the storage part, and a plurality of spacer ribs are provided to divide the hollow storage part into a plurality of through storage spaces, contributing to improved heat dissipation effect. By using it to store a liquid that can be used, the contact area can be increased to greatly increase the heat dissipation rate and increase the efficiency.

2. Reduce usage costs. A plurality of rails are installed on one side of the hollow cavity of the heat conductive sheet of the present invention, locking grooves are installed on both the left and right sides, a heat radiating portion is provided on the heat radiating sheet, and one end of the heat radiating sheet is hollow. Install the same locking pedestals as the locking grooves on the left and right sides of the cavity, and fit the heat dissipation sheet into the rail installed on one side of the hollow cavity, and fit several heat dissipation sheets on the same heat conductive sheet The heat dissipation efficiency several times higher than that of the heat conductive sheet main body can be quickly improved.

As shown in FIGS. 1, 2A and 2B, the heat conductive sheet 10 of the present invention mainly comprises a hollow cavity 11, several heat generating sheets 13, and several lids 12, of which the hollow cavity 11 is made by aluminum impact extrusion which is integrally molded, and a hollow storage part 111 is provided inside, and a square bar used to enhance several heat dissipation effects on the side surface in the hollow storage part 111. 116 is further provided, and a plurality of spacer ribs 114 are provided to divide the hollow storage portion 111 into a plurality of through storage spaces 115, which are used to store a liquid that can contribute to an improvement in heat dissipation effect. A plurality of rails 112 are installed on one side of the hollow cavity 11, and locking grooves 113 are installed on the left and right sides. As shown in FIGS. 3, 4, and 5, the heat radiating sheet 13 is provided with a heat radiating portion 131, and one end of the heat radiating sheet 13 is provided with a locking base 132 that is the same as the locking grooves 113 on both the left and right sides of the hollow cavity 11. The heat dissipating sheet 13 is fitted into a rail 112 installed on one side of the hollow cavity 11 to increase the heat dissipating efficiency of the heat conducting sheet 10, and a groove 121 is provided in the lid 12. As shown in FIGS. 6, 7, and 8, several heat conductive sheets 10 are fitted into a rail 112 installed on one side of the heat conductive sheet 10 with locking grooves 113 on both the left and right sides to connect the heat conductive sheets 10. 9 and 10, the printed circuit board circuit 1171 is printed on the other surface 117, and the electronic component 1172 is printed on the printed circuit board circuit on the single-sided heat conduction sheet 10. When soldered to 1171, the optimum heat dissipation effect can be increased.

  As shown in FIGS. 11, 12A, and 12B, another embodiment of the heat conductive sheet 10a of the present invention is provided with flat portions 113a on both the left and right sides of the hollow cavity 11a, and the hollow portion 11a has a hollow cavity 11a. A rail 1131a similar to the rail 112a is provided, and as shown in FIG. 16, the heat conduction sheet 10 of the present invention is fitted to increase the contact area with the air, thereby increasing the heat radiation efficiency. Another embodiment of the heat conductive sheet 10a of the present invention includes a hollow cavity 11a, several heat generating sheets 13a, and several lids 12a, of which the hollow cavity 11a is also integrally formed. Created by impact extrusion, a hollow storage portion 111a is provided inside, and a plurality of square bars 116a used to enhance the heat dissipation effect are installed on the side surface in the hollow storage portion 111a, and a plurality of Spacer ribs 114a are provided to divide the hollow storage portion into a plurality of storage spaces 115a penetrating through and used to store a liquid that can contribute to improving the heat dissipation effect. And by installing a plurality of rails 112a on one side of the hollow cavity 11a and fitting on the locking base 132 of the heat dissipation sheet 13, the heat dissipation effect of another embodiment of the heat conductive sheet 10a of the present invention can be enhanced, A groove 121a is also provided in the lid 12a. See FIGS. 13, 14A and 14B. Further, as shown in FIG. 15, a printed circuit board circuit 1171a is provided on the other surface 117a.

As shown in FIGS. 17 and 18, another embodiment of the heat conductive sheet 10 a according to the present invention is configured such that the air in the hollow storage portion 111 a is first injected before the liquid that can contribute to the improvement of the heat dissipation effect is injected. Since it is necessary to maintain the vacuum state by removing the air, the aluminum pipe 14a is provided in the groove 121a of the lid 12a and used to extract air from the hollow storage portion 111a. The end of the opening of the aluminum pipe 14a is sealed to prevent air from entering, and the aluminum pipe 14a can be bent and pushed into the groove 121a of the lid 12a to maintain the vacuum state of the hollow storage portion 111a. The overall appearance can also be maintained. This method can also be applied to the heat conductive sheet 10 of the present invention. As shown in FIGS. 19 and 20, the heat conductive sheet 10a of the present invention is similarly applied to the groove 121 of the lid 12 of the heat conductive sheet 10 of the present invention. An equivalent effect can be achieved by installing an aluminum pipe 14 of another embodiment.

The heat conductive sheet 10 of the present invention can be used by being combined with each other or fitted so that an optimum heat radiation effect is improved. First, as shown in FIGS. 21 and 22A, the heat conductive sheet 10 of the present invention is used. The hollow cavity 11 is provided with a concave groove 119, and the depth is required to be cut into the hollow storage portion 111. The heat conduction sheet 10 of the present invention is provided on one side of the plurality of heat conduction sheets 10 of the present invention. A cam 1131 of the concave groove 119 of the hollow cavity 11 is provided oppositely, and further soldered into the concave groove 119 of the hollow cavity 11 of the heat conductive sheet 10 of the present invention, as shown in FIG. By forming a situation in which the hollow storage portion 111 in the hollow cavity 11 penetrates, an optimum heat dissipation effect can be increased.

It is a three-dimensional exploded view of the present invention. It is a three-dimensional block diagram of the present invention. FIG. 2A is a cross-sectional view at the 2B-2B position. 1 is a schematic configuration diagram of the present invention. It is a three-dimensional block diagram (2) of this invention. It is a three-dimensional side view of the present invention. It is the three-dimensional schematic which the heat conductive sheet of this invention couple | bonded together. It is a three-dimensional block diagram after the heat conductive sheet of this invention couple | bonded together. It is a side view after the heat conductive sheet of this invention couple | bonded together. It is the three-dimensional figure which printed the circuit of the printed circuit board on the other surface of the heat conductive sheet of this invention. It is the three-dimensional figure which attached the electronic component to the circuit of the printed circuit board of the heat conductive sheet of this invention. It is a three-dimensional exploded view of the present invention separately implemented. It is the three-dimensional block diagram implemented separately of this invention. It is sectional drawing in the 12B-12B position of FIG. 12A. It is the three-dimensional block diagram (2) implemented separately of this invention. It is a side view of the configuration of the present invention separately implemented. It is sectional drawing in the 14B-14B position of FIG. 14A. It is the three-dimensional figure which printed the circuit of the printed circuit board on the other surface of another Example of the heat conductive sheet of this invention. It is the three-dimensional block diagram which combined the separate implementation of this invention and the heat conductive sheet of this invention mutually. It is the three-dimensional schematic which attached the aluminum pipe to the cover body in another Example of the heat conductive sheet of this invention. It is the operation | movement schematic which folded the aluminum pipe after completion of a vacuum in another Example of the heat conductive pipe of this invention. It is the three-dimensional schematic which attached the aluminum pipe to the cover body with the heat conductive sheet of this invention. It is the operation | movement schematic which folded the aluminum pipe after completion of vacuum with the heat conductive sheet of this invention. It is the three-dimensional exploded view of the separate combination system of the separate Example of the heat conductive sheet of this invention. It is a three-dimensional block diagram of the separate combination system of the separate Example of the heat conductive sheet of this invention. FIG. 22B is a cross-sectional view taken at 22B-22B in FIG. 22A.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Thermal conductive sheet 11 Hollow cavity 111 Hollow storage part 112 Rail 113 Locking groove 1131 Comb 114 Spacer rib 115 Storage space 116 Square bar 117 Single side 1171 Circuit 1172 of printed circuit board Electronic component 119 Concave groove 12 Cover body 121 Groove 13 Heat radiation sheet 131 Heat radiation part 132 Locking base 14 Aluminum pipe 10a Thermal conduction sheet 11a Hollow cavity 112a Rail 113a Plane part 1131a Rail 114a Spacer rib 115a Storage space 116a Square bar 117a Single side 1171a Printed circuit board circuit 12a Lid 121a Groove 13a Heat dissipation sheet 14a Aluminum pipe

Claims (5)

A hollow cavity, a heat conductive sheet comprising a plurality of heat dissipation sheets and a plurality of lids,
The hollow cavity is made by integrally molded aluminum impact extrusion, and a hollow storage part is installed inside it, and a plurality of square bars are installed on the side of the hollow storage part to improve the heat dissipation effect. In addition, a plurality of spacer ribs are provided so as to divide the hollow storage portion into a plurality of continuous storage spaces, and used to store liquid that contributes to improving the heat dissipation effect, and a plurality of rails are provided on one side of the hollow cavity. Install, print the circuit of the printed circuit board on the other side, install the locking grooves on the left and right sides,
Install a heat dissipating part on the heat dissipating sheet and install the same locking pedestals on the left and right sides of the hollow cavity at one end of the heat dissipating sheet, and attach the heat dissipating sheet to the rail installed on one side of the hollow cavity Fitting,
A heat conductive sheet comprising installing a groove on one side of the lid. A flat part is installed on each of the left and right sides of the hollow cavity, and the same rail as the rail in the hollow cavity is installed on the flat part, and a heat conductive sheet is fitted in the locking grooves installed on the left and right sides. 2. The heat conductive sheet according to claim 1, wherein the heat conduction sheet is strengthened by increasing the area in contact with air. 2. The heat conductive sheet according to claim 1, wherein a circuit of a printed circuit board can be printed on one side of the hollow cavity. The heat conductive sheets can be combined and combined with each other so as to increase the optimal heat dissipation effect, or a plurality of heat conductive sheets can be soldered to the heat conductive sheet to store the hollow cavities in a hollow space. 2. The heat conductive sheet according to claim 1, wherein a state in which the portion penetrates is formed. 2. The heat conducting sheet according to claim 1, wherein an aluminum pipe is installed in the groove of the lid body for extracting air in the hollow housing portion and bending the aluminum pipe into the groove of the lid body.

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