JPS6383413A - Spacer for substrate - Google Patents

Abstract

(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a substrate spacer that supports a second substrate at a distance above a first substrate.

[Prior Art] As shown in FIG. 5(A), a conventional spacer for a plate of this type (hereinafter referred to as a spacer) has a male screw 12a at one end of a metal hexagonal column 12, and a male screw 12a at the other end. It is known that the acid screw 12b is cut in the same way. Further, as shown in FIG. 5(B), the entire body is made of a conductive material 13 (for example, a sheet metal), and a head portion 13a with a screw hole formed therein and a leg portion 1 that can be soldered.
3b, the legs are fixed onto the first circuit board 14 by soldering, and the second circuit board 15 is fixed to the head with screws 11.

[Problems to be Solved by the Invention] However, in these conventional spacers, the distance H between the supported second circuit board and first circuit board is determined by the height dimension of each spacer. For this reason, if the required spacing between the circuit boards differs, there is an inconvenience in that spacers of different heights must be prepared each time to match the spacing. Further, when different spacers are prepared, there is a problem in that the cost of preparing the spacers increases the manufacturing cost of various electronic devices whose circuit board parts are assembled using the spacers.

[Means for Solving the Problems] In order to solve the above-mentioned problems, according to the present invention, in a substrate spacer that supports a second substrate at a distance above a first substrate, the second substrate It consists of a head part that fixes the board, and a leg part that is inserted into and fixed to the first board, and the leg part has a structure in which the width gradually increases depending on the height from the lower end of the leg part. .

[Function] According to such a structure, by changing the width dimension of the hole in the first substrate into which the leg part of the spacer is inserted, the depth into which the leg part is inserted can be changed stepwise, and the depth into which the leg part is inserted can be changed stepwise. The height of the spacer head on the substrate can be adjusted in stages. That is, the distance between the supported first substrate and second substrate can be adjusted in stages.

[Embodiments] Hereinafter, details of embodiments of the present invention will be described with reference to the attached drawings.

1 to 3 show the structure of an embodiment of a spacer employing the present invention.

In FIGS. 1 to 3, the spacer, designated as a whole by the reference numeral 1, is made of a conductive and solderable plate material, for example, nickel-plated 5PCC (rolled iron plate). As shown in FIG. 1, both ends of the spacer l are bent at approximately right angles to form leg portions 4.
4, and the central part is formed as a head 2.

At the center of the head 2, there is a spacer 1 supported by a spacer l as shown in FIG.
A screw hole 3 is formed for fixing the upper second circuit board 10 with a screw 11, as shown in FIG.

The legs 4, 4 are formed in a stepwise shape as shown as first to fourth step portions 5 to 8 from the lower end, and the height from the lower end is as shown in FIG. As a result, the width gradually increases as shown by symbols a to d.

Note that the two legs 4.4 are point symmetrical with respect to each other and have a reverse left and right relationship.

With this structure, when the spacer 1 is used, the spacer 1 has its legs 4.4 inserted into the elongated holes 9a formed in the first circuit board 9 on the lower side shown in FIG. 3(A). Half■1
It is attached and fixed onto the first circuit board 9. Then, fix the upper second circuit board 10 to the head 2 of the spacer l with screws 11 through the screw holes 3, and attach the second circuit board 10 on the first circuit board 9 through the spacer l. is supported.

Here, when inserting the leg portion 4.4 into the first circuit board 9,
If the width of the elongated hole 9a to be inserted is, for example, slightly larger than the width a in FIG. 2, but smaller than the width, the leg portion 4.4
Since the lower end surface 6a of the second stepped portion 6 from the bottom comes into contact with the upper surface of the first circuit board 9, it is inserted by the depth of the lowermost stepped portion 5. The height of the head 2 of the spacer 1 on the substrate is f as shown in FIG.

Further, if the width of the elongated hole 9b is slightly larger than mb in FIG. 2 and smaller than width C, the leg 4.4 is inserted to the depth up to the second step 6, The height of the spacer 1 is e. This state is illustrated in FIG. 3(B).

Roughly speaking, if the width of the elongated hole is slightly larger than #C in Fig. 2 and smaller than the width d, the legs 4, 4 will be inserted to the depth up to the third step 7, The height of the spacer 1 is d.

In this way, according to this embodiment, by changing the width of the elongated hole formed in the first circuit board for inserting the leg 4.4, the depth into which the leg is inserted is changed in stages. The height of the head 2 of the spacer 1 on the same substrate can be adjusted in stages. That is, the distance between the second circuit board lO and the first circuit board 9 supported by the spacer 1 can be adjusted in stages.

Therefore, the spacer 1 of this embodiment can be used for general purposes in accordance with different required substrate spacings, and can be used to reduce manufacturing costs of various electronic devices in which circuit board parts are assembled.

Furthermore, since the spacer 1 of this embodiment is conductive and can be soldered, the legs 4 and the head 2 can be soldered and connected to the circuits of the first and second circuit boards 9 and 10, respectively. You can connect circuits, for example, connect ground patterns.

Moreover, the spacer l of this embodiment can be attached extremely easily by inserting it into the board, soldering, or screwing.

Note that the shape of the leg portion 4 of the spacer 1 is not limited to that shown in FIGS. 1 and 2, but may be, for example, the shape shown in FIGS. 4 (A) and (B). The number of legs 4 is not limited to two; for example, as shown in Fig. 4(B), two legs may be provided on each side, for a total of four legs. good.

Further, the number of steps of the leg portions 4 is not limited to the above-described one, but may be any number as long as there are three or more steps and the height of the spacer can be adjusted in two or more steps.

Further, the number of screw holes 3 in the head 2 is not limited to one, but may be formed in a plural number, and other methods are not limited to screwing using the screw holes 3.
The structure may be such that the second circuit board is fixed to the head 2. Furthermore, although the leg portions 4 are fixed by soldering after being inserted, they may be fixed by other methods or structures after being inserted.

[Effects of the Invention] As is clear from the above description, according to the present invention, in a substrate spacer that supports a second substrate at a distance above a first substrate, a head for fixing the second substrate is provided. and a leg part that is inserted into and fixed to the first board, and the leg part has a structure in which the width gradually increases depending on the height from the lower end, so that the leg part of the spacer The distance between the second board supported by the spacer and the first board can be adjusted in stages according to the width of the hole in the first board for inserting the part, making it versatile to accommodate different required board spacings. The present invention can be used to reduce manufacturing costs of various electronic devices whose substrate parts are assembled using spacers.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing the structure of a spacer according to an embodiment of the present invention, FIG. 2 is a vertical side view of the spacer, and FIG. 3 (A)
, (B) is a cross-sectional view of the circuit boards attached at different intervals, and FIG. 4 (A). (B) shows different modified examples of the leg portions (11th view, FIGS. 5(A) and CB) are cross-sectional views of the conventional example. 1... Spacer 2... Head 3... Screw hole 4... Legs 5 to 8... Step portion 9.
lO...Circuit board 10a, lOb---Elongated hole 11...Screw (A) (B) Groan change (rri) at the cape ≧ 'S I Firiri resistance [hi] Figure 4

Claims (1)

[Claims] 1) A substrate spacer that supports a second substrate at a distance above the first substrate, including a head that fixes the second substrate, and a head that is inserted into the first substrate. 1. A spacer for a substrate, comprising a fixed leg part, the leg part being formed in a shape whose width gradually increases depending on the height from the lower end of the leg part. 2) The spacer is made of a solderable conductive material, and the leg portion is inserted into the first board and fixed by soldering. Spacer for board. 3) The head has a screw hole, and the second
A spacer for a substrate according to claim 1 or 2, characterized in that the spacer is adapted to fix a substrate.