JPH0538943U - Substrate positioning connection structure - Google Patents

Abstract

(57) [Abstract] [Purpose] Insert a pin on one side and this pin on the other side 2
Improves workability when assembling a plurality of substrates in directions orthogonal to each other. A connector pin 2 and rhombic through holes 3 on both sides thereof are formed on one substrate 1 of the two substrates which are coupled to each other at right angles, and the other substrate 11 is A connector 12 and projections 13, 13 having triangular tips at both ends thereof are provided. And the through holes 3 of the substrate 1
By inserting the projections 13 and 13 of the board 11 into the board 3 and pushing the board 11 to some extent, the board 1 and the board 11 are positioned by the through hole 3 and the projection 13, and the board 11 is pushed all the way to the connector 12. Pin 2 is installed.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a positioning connection structure for assembling two substrates by butting them in directions orthogonal to each other.

[0002]

[Prior Art]

 When connecting two boards assembled at a right angle with a connector, it is necessary to determine the positional relationship of each board accurately in order to ensure the connection. Therefore, in the prior art, as shown in FIG. 8, a slit-shaped through hole 102 is formed in one substrate 101, and a rectangular protrusion 104 is formed in the other substrate 103, and the protrusion 104 of the other substrate 103 is formed. Are pressed into the through holes 102 of the substrate 101 to be assembled, and at this time, the pins 105 implanted in one substrate 101 are fitted into the connectors 106 of the substrate 103 at the same time.

[0003]

[Problems to be solved by the device]

 However, as described above, when engaging the slit hole and the quadrangular protrusion, it is necessary to form the slit hole and the quadrangular dimension with a certain degree of accuracy in order to perform accurate positioning. If any position changes due to warpage, etc., it becomes difficult to align the slit holes with the protrusions in the initial stage of insertion, and quick work cannot be performed.

[0004]

[Means for Solving the Problems]

 In order to solve the above problems, the present invention forms a substantially rhombic through hole on one of two substrates having pins and connectors that fit with each other and a protrusion with a sharp tip on the other.

[0005]

[Action]

 Since the through-hole is roughly rhombic and the tip of the protrusion is sharp, the degree of freedom of position at the beginning of insertion is high and insertion becomes easy, and as the insertion degree is deepened, it is accurately positioned at the final position.

[0006]

【Example】

 Embodiments of the present invention will be described below with reference to the accompanying drawings. Here, FIG. 1 is a perspective view showing a positioning and coupling structure of a substrate according to the present invention, FIG. 2 is an enlarged view of a through hole of the substrate, FIG. 3 is an enlarged view of a protrusion of the substrate, and FIG. FIG. 5 is an enlarged front view of the attached state, FIG. 5 is an enlarged plan view of the same state, and FIGS. 6 to 8 are views showing another embodiment of the protrusion.

The board positioning and coupling structure according to the present invention comprises two boards 1 and 11, and one board 1 is provided with connector pins 2 and rhombic through holes 3 and 3 on both sides. The other board 11 is provided with a connector 12 and projections 13 and 13 having triangular tips at both ends.

Here, as shown in FIG. 2, the through hole 3 of one of the substrates 1 has a vertical dimension a of the maximum width portion which is the plate thickness of the substrate 11 +0.1 to 0.2 mm, and a maximum width dimension b of the substrate 11. The protrusion 13 has a width w + 0.3 to 0.5 mm, and the vertical dimension c of the inclined portion is b / √2. Further, as shown in FIG. 3, the protrusion 13 of the board 11 has the length dimension d of the equal width portion as the length l + 0.5 to 1.0 mm of the connector pin 2 of the board 1 to be mounted, and The length dimension e is formed to be the same as the width w of the protrusion 13 itself.

To mount the substrate 11 on the substrate 1 formed as described above, the projections 13 and 13 of the substrate 11 are inserted into the through holes 3 and 3 of the substrate 1 and pushed in halfway. Then, as shown in FIGS. 4 and 5, the substrate 1 and the substrate 11 are positioned by the through holes 3 and the protrusions 13. Further, by pushing the board 11 to the end, the pin 2 is mounted in the hole 12a of the connector 12.

In this case, since the tip of the protrusion 13 is sharp and the through hole 3 is substantially rhombic and wider in the vertical and horizontal directions than the tip of the protrusion 13, the degree of freedom at the time of insertion is high and the warp of the substrate 1 is high. Even if the above occurs, the protrusion 13 can be easily inserted into the through hole 3 and the workability of assembling is improved. Further, as the protrusion 13 is inserted into the through hole 3, the protrusion 13 is accurately positioned at the final position and does not rotate about the point O shown in FIG.

The angles θ1 and θ2 of the through hole 3 shown in FIG. 4 may be in the range of 0 ° <θ1 and θ2 <180 °. Further, the tip shape of the protrusion 13 may be a semicircular shape as shown in FIG. 6 or a shape in which the tip is offset to one side as shown in FIG.

[0012]

[Effect of the device]

 As described above, according to the present invention, one of the two substrates which are joined to each other in a direction orthogonal to each other has a substantially rhombic through hole and the other substrate has a pointed tip. Since each protrusion is formed, the degree of freedom of position at the time of initial insertion can be increased while maintaining high positioning accuracy between the pin and the connector, which improves assembly workability.

[Brief description of drawings]

FIG. 1 is a perspective view showing a positioning and coupling structure for substrates according to the present invention.

FIG. 2 is an enlarged view of a through hole of the substrate.

FIG. 3 is an enlarged view of a protrusion on the same substrate.

FIG. 4 is an enlarged front view of an assembled state of the board.

FIG. 5 is an enlarged plan view of the same assembled state.

FIG. 6 is a plan view showing another embodiment of the protrusion.

FIG. 7 is a plan view showing another embodiment of the protrusion.

FIG. 8 is a perspective view of a conventional board positioning and coupling structure.

[Explanation of symbols]

1 ... Assembly side substrate, 2 ... Connector pin, 3 ... Through hole,
11 ... Assembly side substrate, 12 ... Connector, 13 ... Projection.

Claims (1)

[Scope of utility model registration request] 1. In a structure in which a board having a pin and a board having a connector to which the pin fits are butted against each other in a direction orthogonal to each other, one of the two boards has a through hole. A protrusion that engages with the through hole is formed on the other substrate, and the through hole has a substantially rhombic shape.
A positioning and coupling structure for substrates, wherein the protrusion has a pointed shape and a width thereof is substantially equal to a maximum width of the through hole.