JPH0818261A - Radiator for electronic parts - Google Patents

Abstract

PURPOSE:To provide a radiator for electronic parts at low production cost which is capable of efficiently dispersing the heat generated from the parts and has a simple structure enough to produce without much labor. CONSTITUTION:A continuously surrounded tubular chamber 3 for housing electronic parts is formed at one side of a horizontal base board 2. Both ends of this chamber in the length direction are open, and its one side facing the board 2 is cut toward inside to form electronic parts retaining spring pieces 9 extending in the length direction. Radiation fins 4 are formed in the length direction on the surface of the board 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a radiator for electronic parts suitable for radiating heat generated when electronic parts such as transistors operate.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG.
The horizontal board b is provided with an electronic component storage space c whose both ends in the longitudinal direction and the top surface are open, and a separate electronic part pressing member d having an electronic part pressing piece f is attached to the opening of the top surface. A heat radiator for electronic components is known in which a plurality of heat radiation fins e are formed on the surface of b along the longitudinal direction.

However, this product requires two members, that is, the radiator main body a and the electronic component pressing member d, so that the manufacturing is troublesome and the cost is high.

In order to improve this, as shown in FIG. 6, an electronic component storage space c whose longitudinal ends and upper surfaces are opened is provided on one surface of the horizontal substrate b, and an upper surface opening of the electronic component storage space c is provided. Electronic component pressing pieces f inclined toward the horizontal board b are provided at positions facing each other on both sides of the horizontal section.
There has been proposed a radiator for electronic parts in which a plurality of radiator fins e are formed on the surface of the above along the longitudinal direction. However, this one cuts off a part of the horizontal piece projecting on both sides of the upper surface opening of the electronic component storage space c, forms a cut g at the base of the remaining horizontal piece, and further cuts the horizontal part of the part where the cut g is made. Since the electronic component pressing piece f is formed by inclining the piece toward the horizontal substrate b side, it takes time and labor for processing, which is a factor of increasing the manufacturing cost.

[0005]

DISCLOSURE OF THE INVENTION The present invention provides a radiator for electronic parts, which can efficiently dissipate heat generated by electronic parts, has a simple structure, does not require much labor for manufacturing, and is low in manufacturing cost. The purpose is to do.

[0006]

In order to achieve the above-mentioned object, a radiator for electronic parts according to the present invention is a cylindrical electronic part which is continuously surrounded by one end of a horizontal substrate with its longitudinal ends open. A storage chamber is formed, and a surface of the electronic component storage chamber facing the horizontal substrate is cut down inward to form an electronic component pressing spring piece extending in the longitudinal direction. It is provided along the direction. Also,
It is desirable to provide an electronic component positioning stopper near the one end in the longitudinal direction of the electronic component storage chamber.

[0007]

The electronic component stored in the electronic component storage chamber is pushed by the electronic component pressing spring piece and comes into contact with the horizontal substrate, and the heat generated by the electronic component is conducted to the heat radiation fin through the horizontal substrate, so that the heat radiation fin Emitted from the surface. The electronic component pressing spring piece is formed by a simple process of cutting down from the outer surface of the electronic component storage chamber by pressing or the like.

[0008]

Embodiments of the present invention will now be described in detail with reference to the drawings. The radiator 1 for electronic parts is made of aluminum or aluminum alloy having good thermal conductivity, and as shown in FIG. 1, a horizontal substrate 2 and an electronic parts storage chamber formed in the widthwise central portion of one surface of the horizontal substrate. 3 and a plurality of heat radiation fins 4 provided on the surface of the horizontal substrate 2 excluding the electronic component storage chamber 3.

The horizontal substrate 2 is formed of a rectangular flat plate, and a pair of side walls 5 and 5 are formed on the one surface of the horizontal substrate 2 so as to be slightly spaced from the center in the width direction.
Is erected along the longitudinal direction, a single upper plate 6 connecting the upper ends of the side walls 5, 5 is installed, and the space continuously surrounded by the side walls 5, 5 and the upper plate 6 has a cylindrical shape. It is used as the electronic component storage room 3. Both ends in the longitudinal direction of the electronic component storage chamber 3 are opened, and an electronic component positioning stopper including a protrusion 8 is provided near the one end in the longitudinal direction of the bottom surface of the electronic component storage chamber 3.

Further, the central portion of the upper plate 6 is obliquely cut down toward the horizontal substrate 2 to form an electronic component pressing spring piece 9 extending in the longitudinal direction. The electronic component pressing spring piece 9 is formed so that its tip end faces the protrusion 8. The radiating fins 4 are composed of vertical walls extending in the longitudinal direction, are formed on the other surface of the horizontal substrate 2 at appropriate intervals in the width direction, and are formed on both sides of the one surface in the width direction.

Then, as shown in FIG. 4, the electronic component 7 is inserted from the opening at the other end of the electronic component storage chamber 3 in the longitudinal direction,
When the electronic component 7 is slid until it comes into contact with the protrusion 8, the electronic component 7 is pressed by the electronic component pressing spring piece 9 and comes into close contact with the horizontal substrate 2, and is mounted at an appropriate position of the electronic component radiator 1. When the electronic component 7 operates in this state, the heat generated thereby is transmitted to the horizontal substrate 2, further transmitted to the heat radiation fins 4, and dissipated from the surface thereof.

The radiator 1 for electronic parts is molded as follows. First, the horizontal substrate 2, the side walls 5, 5, the upper plate 6 and the heat dissipation fin 4 are integrally extruded and molded, and the obtained long material is cut into a predetermined length.

Next, the outer surface of the top plate 6 is pressed inward to cut the central portion thereof in the direction of the horizontal substrate 2 to form the electronic component pressing spring piece 9. Finally, the protrusion 8 is formed on one surface of the horizontal substrate 2.

The electronic component positioning stopper may be provided on the upper surface or the side surface of the electronic component storage chamber 3.

[0015]

In the radiator for electronic parts of the present invention, the mounted electronic parts are pressed against the horizontal board by the electronic part pressing spring pieces, so that the heat generated when the electronic parts operate can surely move the horizontal board. And the heat is efficiently dissipated from the heat dissipating fins. Further, both ends in the longitudinal direction are opened on one surface of the electronic component storage chamber to form a continuously enclosed cylindrical electronic component storage chamber, and the surface of the electronic component storage chamber facing the horizontal substrate is cut inward. Since the electronic component pressing spring piece is integrally formed, both ends in the longitudinal direction are opened on one surface of the horizontal substrate, and the cylindrical electronic component storage chamber that is continuously surrounded and the horizontal substrate of the horizontal substrate is formed along the longitudinal direction. The electronic component pressing spring piece can be easily formed by cutting the extruded material having a plurality of fins on the surface and performing a single press working on the obtained member. It is cheap.

If an electronic component positioning stopper is provided near the one end of the electronic component storage chamber in the longitudinal direction, the electronic component can be inserted from the other end of the electronic component storage chamber in the longitudinal direction and slid until it comes into contact with the protrusion. The parts can be easily mounted in the proper positions.

[Brief description of drawings]

FIG. 1 is a front view of a radiator for electronic parts showing an embodiment of the present invention.

FIG. 2 is a plan view of the above.

FIG. 3 is a sectional view taken along line AA of FIG.

FIG. 4 is a cross-sectional view of a radiator for electronic parts in which electronic parts are mounted.

FIG. 5 is a plan view of a conventional radiator for electronic parts.

FIG. 6 is a plan view of another conventional radiator for electronic parts.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Heat sink for electronic components 2 Horizontal substrate 3 Electronic component storage chamber 4 Radiating fins 5 Side wall 6 Top plate 7 Electronic components 8 Protrusion (Electronic component positioning stopper) 9 Electronic component pressing spring piece

Claims (1)

[Claims] 1. A horizontal electronic substrate storage chamber is formed in which one end of the horizontal substrate is opened at both ends in the longitudinal direction and is continuously surrounded, and a surface of the electronic device storage chamber facing the horizontal substrate is formed. A radiator for an electronic component, wherein an electronic component pressing spring piece that is cut inward and extends along the longitudinal direction is formed, and a plurality of heat radiation fins are provided on the surface of the horizontal substrate along the longitudinal direction.