Heat transfer member, convex structural member, electronic apparatus, and electric product

Abstract

A heat transfer member (20) has a support (1), and columnar bodies (2) all or some of which are disposed so as to be inclined at an angle with respect to the support (1). The columnar bodies (2) are in contact with a contacted body (21), and the columnar bodies (2) elastically deform and / or plastically deform along the shape of the contact surface with the contacted body (21) to thereby make direct contact along the wavy and rough irregularities of the contacted body (21), and to cause heat to move through the columnar bodies (2).

Description

TECHNICAL FIELD[0001]The present invention relates to a heat transfer member, a convex structural member, an electronic apparatus, and an electric product for rapidly removing heat from required locations and rapidly supplying heat to required locations of an electronic apparatus, a household electric appliance, or an industrial product.BACKGROUND ART[0002]The electron gun method that uses a cathode-ray tube has conventionally been the common method for projecting an image to a monitor in a television (TV). However, since a television that uses this method scans the cathode-ray tube using a single electron gun, the angle to the external periphery becomes considerable when the size of the monitor is increased, and the ability to increase the size is limited because the monitor becomes distorted. One method for preventing distortions in the monitor is to curve the monitor to maintain a constant distance between the electron gun and the cathode-ray tube. However, a flat monitor is easi...

AI Technical Summary

Benefits of technology

[0010]In rear projection televisions and projectors, the total amount of heat output increase as the size of the monitors increase, light is focused on small elements (Micro Display) that are set at about 10 to 20 mm angles to form an image, the image is projected onto a large screen, and the heat density concentrated in the elements is therefore very high. For this reason, heat must be particularly dissipated with good efficiency. In the transmissive HTPS method, however, light passes through a liquid-crystal chip, and the surface of a cooling module cannot be pressed against the chip to perform cooling in the manner described above. In view of this situation, a technique is adopted, among others, in which the external peripheral frame of the liquid-crystal chip is composed of a highly heat-conductive metal such as Al or Mg, the frame transmits heat and is air-cooled with the aid of a fan, and fins are furthermore attached to the external peripheral frame to improve the air cooling effect.

[0022]Therefore, it is possible to mass produce a member in which the heat dissipation efficiency or heat supply efficiency can be increased by using the convex structural member of the present invention in comparison with a conventional thermal conductive element in which a polymer, organic sheet, or grease is used. It is therefore possible to rapidly heat or to efficiently manage the recent increase in the heat output of, e.g., electronic apparatuses, household appliances, and industrial products.

Problems solved by technology

However, since a television that uses this method scans the cathode-ray tube using a single electron gun, the angle to the external periphery becomes considerable when the size of the monitor is increased, and the ability to increase the size is limited because the monitor becomes distorted.

Also, a cathode-ray tube television considerably increases in thickness as the size of the monitor increases, and such a large-monitor television is not suitable for installation in the living room of a common home.

There is also a demand for greater brightness because light diffuses to a greater extent and the monitor becomes darker and more difficult to view as the size of the monitor increases.

Also, since the luminous energy per unit area is insufficient when display is made to a large monitor using the same output, power consumption generally increases as the size of the monitor increases, and heat output increases in accordance therewith.

As a result, the elements and peripheral equipment will suffer thermal degradation if the heat is not efficiently dissipated from the system, and there is an increasing need to efficiently dissipate heat.

Currently, however, heat dissipation techniques have not caught up to the considerable increase in heat output.

However, a metallic expanded body has innumerable holes, and if incorrectly used, the metallic expanded body, rather than providing heat radiation properties, is liable to act as an insulation layer due to the internal air holes, such as in highly insulative expanded polystyrene and the like.

However, it is difficult to bring about direct gapless contact with the heat radiation area because the high-porosity area does not deform, as exemplified by a porous sintered body or a ceramic fiber.

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