JP2002184489A - Connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a small-sized connector having a sufficiently large spring length. SOLUTION: When the connector 1 is to be mounted between circuit boards, first a stationary side insulator 21 is passed through a reflow furnace and a reinforcing metal piece 24 is soldered to a printed circuit board 30b. Then another printed circuit board 30a is pressed to the oversurface of the stationary side insulator 21, and an upper spring part 11a is deflected so that a first contacting part 12 is depressed. A movable side insulator 22 rotates to deflect the connection part 23, and a lower spring part 11b deflects so that a second contacting part 13 is pressed to the circuit board 30b by the elastomeric force of the lower spring part 11b. As a result, the circuit boards 30a and 30b positioned parallel with each other are connected.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connector used for connecting substrates parallel to each other.

[0002]

2. Description of the Related Art Conventionally, as a contact of this type of connector, there is a leaf-shaped contact (not shown) extending almost straight.

The contact includes a plate-shaped spring portion, a contact portion formed at one end of the spring portion, a fixed portion formed at the other end of the spring portion, and a contact portion formed at the other end of the spring portion. And a terminal portion connected to the fixed portion.

The contact portion is pressed against a printed board disposed on the upper surface side of the insulator by the elastic force of a spring portion.

The terminal is soldered to a printed circuit board disposed on the lower surface of the insulator.

[0006] The fixing portion is fixed to the insulator.

As a contact of this type of connector, there is a contact having a substantially V-shaped spring portion as shown in FIG.

FIG. 12 is a sectional view of a conventional connector.

The connector 301 includes a contact 310
And an insulator 320 holding the contact 310
And

The contact 310 includes a substantially V-shaped spring portion 311, a contact portion 312 formed at one end of the spring portion 311, a fixed portion 318 formed at the other end of the spring portion 311, The fixing portion 3 is formed at the other end of the portion 311.
And a terminal portion 313 connected to the terminal 18.

The contact portion 312 is pressed against a printed board (not shown) disposed on the upper surface 321a side of the insulator 320 by the elastic force of the spring portion 311.

The terminal portion 313 is soldered to a printed board (not shown) disposed on the lower surface 321b side of the insulator 320.

The fixing part 318 is fixed to the insulator 320.

[0014]

By the way, by increasing the length of the spring, a stable contact force of the contact can be obtained.

However, in the case of a leaf-type contact, the size of the connector is increased by the length of the spring portion.

In the case of the contact 310 in which the spring portion 311 has a V-shape, the spring portion 311 is bent so that the size can be made smaller than that of the leaf-type contact. Because
The miniaturization of the connector 301 was limited.

The present invention has been made in view of such circumstances, and an object thereof is to provide a small connector having a sufficient spring length.

[0018]

According to a first aspect of the present invention, there is provided a connector for connecting parallel substrates, comprising a plurality of contacts, and an insulator for holding the contacts. The contact is formed at a substantially V-shaped spring portion, at one end of the spring portion, a first contact portion that contacts one of the substrates, and at the other end of the spring portion, and at the other substrate. A second contact portion that is in contact with the first insulator; a holder provided on the first insulator; a holding unit for fixing the first insulator to the other substrate; A second insulator that is connected to the first insulator via a flexible connecting portion and holds a substantially intermediate portion of the spring portion.

The first insulator is fixed to the other substrate by holding means. Next, one substrate is mounted on the upper surface of the insulator, and the first contact portion is pushed down. At this time, the second insulator rotates and the connecting portion bends, and the second contact portion is pressed against the other substrate by the elastic force of the spring portion. That is, the spring portion from the second insulator to the first contact portion and the spring portion from the second insulator to the second contact portion can function as a spring. Further, since the second insulator holds the intermediate portion of the substantially V-shaped spring portion, the size of the contact in the longitudinal direction can be reduced.

According to a second aspect of the present invention, in the connector according to the first aspect, a tapered portion is formed on a surface of the second insulator facing the other substrate.

When the first contact portion is pushed down, the second insulator can be easily rotated by the tapered portion.

According to a third aspect of the present invention, in the connector according to the first or second aspect, the first insulator includes:
A boss for determining a position with respect to the other substrate is provided.

After the boss is inserted into the hole of the other substrate, the holding means can be accurately soldered to the other substrate.

According to a fourth aspect of the present invention, in the connector of the first or second aspect, the holding means is a hook for fixing the first insulator to the other substrate.

When the hook is inserted into the hole of the board while being bent, the tip of the hook which has passed through the hole and returned to the original position is hooked on the hole, and the connector can be easily fixed to the board.

[0026]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a front view of a connector according to a first embodiment of the present invention, FIG. 2 is a plan view thereof, FIG.
4 is a sectional view taken along the line IV-IV of FIG. 1, and FIG.
It is sectional drawing which follows a line.

The connector 1 includes a plurality of contacts 10,
Insulator 20 holding these contacts 10
And

The insulator 20 is formed by resin molding.

The insulator 20 includes a fixed insulator (first insulator) 21, a movable insulator (second insulator) 22, and a connecting portion 23.

The fixed insulator 21 has a rectangular cross section. The bottom surface 21 in the longitudinal direction of the fixed-side insulator 21
Reinforcing metal fittings (holding means) 24 for fixing the fixed insulator 21 to a printed circuit board (substrate) 30b (not shown) are fixed to both ends of b.

The upper surface 21a of the fixed insulator 21 is flat so that it can be sucked by a suction nozzle during mounting.

The movable insulator 22 has a substantially rectangular cross section. The movable insulator 22 is a contact 10
Of the spring portion 11 (to be described later).

A tapered portion 22a is formed on the bottom surface of the movable insulator 22 (the printed circuit board (the other substrate) 30b on the side where the fixed insulator 21 is fixed).

The tapered portion 22a has a gradient that gradually moves away from the printed circuit board 30b toward the stationary insulator 21.

The connecting portion 23 has a leaf spring shape and has flexibility. The fixed insulator 21 and the movable insulator 22 are connected to each other in parallel by two connecting portions 23.

The spring portion 11 of the contact 10 is substantially V-shaped. The spring portions 11 are arranged along the longitudinal direction of the movable insulator 22.

A printed circuit board 30a is provided at one end of the spring portion 11.
(See FIG. 7). The first contact portion 12 is located above the upper surface of the movable insulator 22 (see FIG. 5).

The other end of the spring portion 11 has a printed circuit board 30b
A second contact portion 13 is formed to be in contact with. The second contact portion 13 is located on substantially the same plane as the bottom surface of the movable insulator 22 (see FIG. 5).

FIG. 6 is a perspective view of the reinforcing fitting.

The reinforcing bracket 24 is substantially U-shaped. The reinforcing metal fitting 24 includes an insertion portion 24a that is insert-molded into the fixed insulator 21, a soldering portion 24b that is soldered to the printed circuit board 30b, and a connecting portion 24c that connects the insertion portion 24a and the soldering portion 24b. Have.

The tip of the soldering portion 24b is bent at substantially a right angle so as to increase the contact area with the printed circuit board 30b, and is wider than the insertion portion 24a.

FIG. 7 is a side view showing a mounted state of the connector.

When mounting the connector 1 between the boards 30a and 30b, first, the upper surface 21a of the fixed insulator 21 is sucked by the suction nozzle, and the fixed insulator 21 is placed at a predetermined position on the printed board 30b. .

Thereafter, the reinforcing metal fitting 24 is soldered to the printed circuit board 30b by passing the fixed insulator 21 through a reflow furnace.

Next, the printed circuit board 30a is pressed against the upper surface 21a of the fixed insulator 21, and the upper spring portion 11 is pressed.
a (the portion from the movable-side insulator 22 to the first contact portion 12) is bent to push down the first contact portion 12.

At this time, the movable insulator 22 rotates as shown by the arrow, the connecting portion 23 bends, and the lower spring portion 11
The second contact portion 13b (the portion from the movable insulator 22 to the second contact portion 13) is pressed against the printed circuit board 30b by the elastic force of the lower spring portion 11b.

According to this embodiment, the upper spring portion 11a
And the lower spring portion 11b can function as a spring, so that a long spring length can be secured and a stable contact force can be obtained.

Further, since a substantially middle portion of the V-shaped spring portion 11 is held by the movable insulator 22, the size of the contact 10 can be reduced, and the size of the connector 1 can be reduced.

Further, when the first contact portion 12 is pushed down, the movable insulator 22 is formed by the tapered portion 22a.
Rotates, so that the second contact portion 13 can be more reliably pressed against the printed circuit board 30b.

FIG. 8 is a front view of a connector according to a second embodiment of the present invention, and FIG. 9 is a side view thereof. The same parts as those in the first embodiment are denoted by the same reference numerals and description thereof is omitted.

This embodiment differs from the first embodiment in that a boss 15 for positioning with respect to the printed circuit board 30b is provided on the bottom surface 121b of the fixed insulator 121.

According to the second embodiment, the same effects as those of the first embodiment can be obtained, and the connector 101 can be mounted on the printed circuit board with high accuracy.

FIG. 10 is a front view of a connector according to a third embodiment of the present invention, and FIG. 11 is a side view of the connector.

In this embodiment, the fixed insulator 22 is used.
The first embodiment differs from the first embodiment in that the fixed insulator 221 can be fixed to the printed circuit board 30b using the hooks 16 integrally formed at both ends of the first insulator 1.

According to the third embodiment, the same effects as those of the first embodiment can be obtained, and the soldering operation is not required, so that there is no possibility that other components on the printed circuit board 30b are heated. The replacement of the connector 201 is also facilitated.

In this embodiment, the hook 16 is formed integrally with the fixed insulator 221. Alternatively, the fixed insulator 221 may be fixed by a hook separate from the fixed insulator 221. .

[0058]

As described above, according to the connector of the first aspect of the present invention, a long contact spring length can be ensured and a stable contact force can be obtained. Further, the size of the connector can be reduced.

According to the connector of the second aspect of the present invention,
The second contact portion can be more reliably pressed against the other substrate.

According to the connector of the third aspect of the present invention,
The connector can be accurately mounted on the board.

According to the connector of the fourth aspect,
This eliminates the need for soldering work and facilitates connector replacement.

[Brief description of the drawings]

FIG. 1 is a front view of a connector according to a first embodiment of the present invention.

FIG. 2 is a plan view of the connector according to the first embodiment of the present invention.

FIG. 3 is a side view of the connector according to the first embodiment of the present invention.

FIG. 4 is a sectional view taken along the line IV-IV in FIG.

FIG. 5 is a sectional view taken along line VV in FIG. 3;

FIG. 6 is a perspective view of a reinforcing bracket.

FIG. 7 is a side view showing a mounted state of the connector.

FIG. 8 is a front view of a connector according to a second embodiment of the present invention.

FIG. 9 is a side view of a connector according to a second embodiment of the present invention.

FIG. 10 is a front view of a connector according to a third embodiment of the present invention.

FIG. 11 is a side view of a connector according to a third embodiment of the present invention.

FIG. 12 is a sectional view of a conventional connector.

[Explanation of symbols]

 Reference Signs List 1 connector 10 contact 11 spring portion 12 first contact portion 13 second contact portion 15 boss 16 hook 20 insulator 21 fixed-side insulator (first insulator) 22 movable-side insulator (second insulator) 22a taper portion 23 connection Part 24 Reinforcement bracket (holding means) 30a, 30b Printed circuit board (board)

Claims (4)

[Claims] 1. A connector for connecting substrates parallel to each other, comprising: a plurality of contacts; and an insulator for holding the contacts, wherein the contacts are substantially V-shaped spring portions and one end of the spring portions. A first contact portion that is formed and contacts one of the substrates; and a second contact portion that is formed at the other end of the spring portion and contacts the other substrate. The insulator includes a first contact portion. An insulator, and holding means provided on the first insulator for fixing the first insulator to the other substrate;
A second insulator connected to the first insulator through a flexible connection portion and holding a substantially intermediate portion of the spring portion;
A connector comprising: an insulator; 2. The connector according to claim 1, wherein a tapered portion is formed on a surface of the second insulator facing the other substrate. 3. The connector according to claim 1, wherein the first insulator is provided with a boss for determining a position with respect to the other substrate. 4. The connector according to claim 1, wherein said holding means is a hook for connecting said first insulator and said other substrate.