JPS6233338Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a jig for expanding the grooves of a heat sink to facilitate the insertion of heat generating components such as transistors.

A heat sink needs to be in close contact with a heat generating element in order to efficiently dissipate heat generated by a power transistor or the like.

For this reason, the hole into which the heating element is fitted is formed somewhat smaller than the size of the heating element to be accommodated therein, and a groove is cut in the wall surrounding the hole, which is enlarged to facilitate insertion of the heating element. There is something that aims to bring the two together.

When fitting a heat generating element to a heat sink like the one described above, conventionally the grooves were expanded using a screwdriver blade, which not only made the work extremely difficult but also caused the worker's hands to slip and cause injury. There was a problem.

The present invention was made to improve workability and safety when fitting a heat generating element to a heat sink as described above. It is an object of the present invention to provide a heat sink groove expansion jig in which a knob or crank is fixed to one end of a male thread that rotationally engages with a female thread of the block, and a block with a wedge provided at the other end is loosely fitted. .

Hereinafter, the present invention will be described in detail based on embodiments shown in the drawings.

FIGS. 1 and 2 are a perspective view and a side view, respectively, showing an embodiment of a heat sink groove expansion jig according to the present invention.

That is, a heat sink support block 2 is integrally constructed at one end of the base 1, and a female screw block 3 is fixed to the other end with screws 4.

The female screw of the female screw block 3 has a male screw 5.
A slide block 8 having a knob 6 fixed to one end and a wedge 7 fixed to the other end is loosely fitted at a ball joint 9.

In the heat sink groove expansion jig of the present invention constructed as described above, a removable pin 1 is provided at the bottom of the concave portion 10 of the heat sink support block 2.
1 into the heating element storage hole of the heat sink 12,
The groove 13 is arranged so as to face the wedge 7.

After that, when the knob 6 is rotated to advance the male screw 5, the wedge 7 and the slide blocks 8 to which it is fixed are press-fitted into the split groove 13,
Since the heating element accommodating portion of the heat sink 12 is expanded, it is extremely easy to insert the heating element 14 such as a transistor therein.

Next, after inserting the heating element 14, the knob 6 is reversed and the wedge 7 is moved back, thereby removing the heat sink 12.
will contract again and hold the housed heating element in a tight state.

Since the present invention is configured and used as explained above, it is possible to expand the grooves of the heat sink with a simple structure and at low cost, and its workability is significantly greater than when using a conventional screwdriver etc. At the same time, the heat sink is fixed and the wedge that expands the groove is moved forward and backward by the rotation of the knob, which significantly improves work safety.

It should be noted that the present invention need not be limited to the embodiments described above, and the knob for advancing and retracting the male screw may be a crank.

Furthermore, since heat sinks are available in various shapes and sizes, the heat sink support block may be detachably attached to the base 1 as shown in FIG. 3 in order to accommodate these. That is, a nut 15 is fixed to the bottom of the base 1 and a detachable block 16 is attached.
A handle 19 is attached to one end of the threaded rod 18 by passing the threaded rod 18 through the hole 17 bored perpendicularly to the handle 19.
Both may be fixed by.

Alternatively, as shown in FIG. 4, a partially cut out circular or polygonal annular heat sink support block 20 is constructed integrally with the base 1, and at least three screws 21, 21, . , these may be used to absorb differences in the shape and dimensions of the heat sink. Furthermore, it goes without saying that the pin 11 can be replaced in accordance with the shape and dimensions of the heating element housing hole of the heat sink.

In this way, the grooves of various types of heat sinks can be expanded with one jig, which is particularly effective for use in high-mix, low-volume production processes.

[Brief explanation of the drawing]

1 and 2 are a perspective view and a side view, respectively, showing the structure of the heat sink groove expansion jig according to the present invention, and FIGS. 3 and 4 are side views, respectively, showing other embodiments of the heat sink support block. and a perspective view. 1...Base, 2, 16 and 20...Heat sink support block, 3...Female screw block, 5...
...Male thread, 6...Knob (or crank), 7...
Wedge, 8...slide block, 12...heat sink, 13...divided groove, 21...screw.

Claims (1)

[Claims for Utility Model Registration] (1) A heat sink support block and a female screw block are fixed facing each other on a base, and the female screw
The block is provided with a male screw that rotationally engages with the female screw, and a knob or crank is fixed to one end of the male screw, and a slide block with a wedge fixed to the other end is loosely fitted between the two blocks. A heat sink groove expansion jig for expanding the grooves of the heat sink by press-fitting a wedge that moves forward by rotating the knob or crank into the grooves of the heat sink supported by the heat sink support part. . (2) The heat sink expansion jig according to claim 1, wherein the heat sink support block is detachable from the base according to the shape and dimensions of the heat sink. (3) The heat sink support block has a circular or polygonal annular shape with the entry surface of the wedge cut out, and has at least three screws passing through its side wall surface.
Utility model registration claim 1 characterized in that heat sinks of various shapes and sizes are supported by providing individual screws and moving the screws forward and backward.
Or the heat sink groove expansion jig described in 2.