JP3026335B2 - connector - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connector mounted on a housing with a plurality of contacts arranged in a row in a direction perpendicular to a direction in which contact portions are pressed.

[0002]

2. Description of the Related Art Conventionally, as this kind of connector, there is one having a configuration as shown in FIGS.

[0003] A is a contact, the leaf spring material such as phosphor bronze, a first U-shaped portion A ₃ of the mutually opposite continuous respectively to the terminal portion A ₂ of the contact portion A ₁ and the other end of the end portion and on both sides of the second of the provided U-shaped portion a ₄ is formed by bending in the thickness direction into a substantially S-shape, further portion where the terminal unit a ₂ and the second U-shaped portion a ₄ is contiguous It is press-fit portion a ₅ having a protrusion a ₆ which projects in the thickness direction is extended.

[0004] B is a housing, an insulating material such as synthetic resin, is formed in an elongated shape, in its bottom surface, a substantially T-shaped through hole B ₁ having a thin press-fit groove B ₂ on each side end, to position the press-fit groove B ₂ sides as a pair on the opposite side of the lateral direction, it is arrayed in two rows with a predetermined pitch in the longitudinal direction.

[0005] Then, contact A is press-fit portion A ₅ projections
While being inserted into the press groove B ₂ to be press-fitted with at A _6, substantially S-shaped portion from the portion press-fitted portion A ₅ is extended to the contact portion A ₁ passes through the through hole B ₁ It is inserted into the internal space of the housing B. In this manner, when a plurality of contact A is inserted from the through hole B _1, a pair of contact A located in the lateral direction of the housing B, A, the contact portion
A ₁ and A ₁ are arranged so as to face each other at a predetermined interval, and the contact portions A ₁ and A ₁ are formed by the contacted member C inserted from an insertion hole B ₃ provided on the upper surface of the housing B. It is pressed in the direction of crushing the S-shape and flexed, and is electrically connected to the contacted member C by the contact pressure at that time. That is, the plurality of contacts A are mounted in two rows at a predetermined pitch in the longitudinal direction of the housing B, that is, the direction orthogonal to the direction in which the contact portions A ₁ , A ₁ are pressed by the contacted member C. It will be.

[0006]

In the above-mentioned conventional connector, the contact A is not one place where the leaf spring material is bent in the plate thickness direction, and the first and second contacts are opposite to each other. The U-shaped portions A ₃ and A ₄ are formed in a substantially S-shape at two locations, so that the S-shape insertion dimension shown in FIG.
L becomes difficult to reduce the variation.

By the way, the contact A, a contact portion A ₁ by the contact member C inserted from the insertion hole B ₃ of the housing B is in a direction to collapse the S-shaped, i.e. is pressed to reduce the size L of the above The contact portion A ₁ is bent by the contact member C when the dimension L is large because the contact portion A ₁ is electrically connected to the contact member C with the contact pressure generated by the deflection amount at that time. In the case where it is easily deformed and the dimension L is small, a problem may occur in the electrical connection state such that the contact pressure becomes lower than a predetermined value.

[0008] The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a connector which can be securely connected.

[0009]

In order to solve the above-mentioned problems, a connector according to the present invention comprises first and second U-shaped connectors which are connected to a contact portion at one end and a terminal portion at the other end. A contact having a U-shaped portion and formed in a substantially S-shape and having a spring property so that the contact portion can be pressed and bent in a direction to collapse the S-shape; and a plurality of contacts are orthogonal to the direction in which the contact portion is pressed against the contact portion. And a housing mounted in a row in the direction of
The U-shaped portion is regulated in a state of being bent in a direction to crush the U-shape and is mounted on the housing.

[0010]

According to the connector of the present invention, a contact formed in a substantially S-shape by providing first and second U-shaped portions which are opposite to each other has a second U-shaped portion. Because it is attached to the housing while being regulated in the state of bending in the direction to collapse the character,
Since the second U-shaped portion restricted by the housing has no variation among the two U-shaped portions and is affected only by the first U-shaped portion, the S-shaped cross-over dimension varies accordingly. In addition, even if the displacement by the contacted member is the same as that of the conventional example, the second U-shaped portion bends in advance in the direction of crushing the U-shape and contacts by an amount corresponding to the amount of deflection attached to the housing. The pressure can be set to be large, and thus the connection can be made more reliably.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS.

Reference numeral 1 denotes a contact, which is a first U-shaped portion 1c and a second U-shaped portion which are connected to the contact portion 1a at one end and the terminal portion 1b at the other end by a leaf spring material such as phosphor bronze. A U-shaped portion 1d is provided and formed in a substantially S-shape by bending in the plate thickness direction, and a portion where the terminal portion 1b and the second U-shaped portion 1d are connected is provided on both sides in the plate width direction. Triangular press-fit section
1e is provided.

Here, in the second U-shaped portion 1d, both side portions of the bent portion, that is, portions connected to the terminal portion 1b and the first U-shaped portion 1c are not parallel to each other, and the opening portion is wider. Thus, the angle θ between both side portions is bent at an acute angle.

Reference numeral 2 denotes a housing, which is formed in a long shape by using an insulating material such as a synthetic resin, and has a substantially square symmetrical cross section as shown in FIG. Rectangular opening holes 2a are arranged in a row at a predetermined pitch in the longitudinal direction, and the second U
A U-shaped accommodation portion 2b for accommodating the U-shaped portion 1d is provided, and an insertion hole 2c extending in the longitudinal direction is provided at the center of the upper surface so as to communicate with the U-shaped accommodation portion 2b inside.

Here, the U-shaped housing portion 2b is
Is formed to have a width slightly larger than the plate width of the contact 1 so that the press-fit portion 1e of the contact 1 can be press-fitted, and the width in the short direction is equal to the second U-shaped portion of the contact 1. It is formed narrower than the above-mentioned opening portion obtained by bending 1d at an acute angle.

Therefore, when the contact 1 is inserted through the opening 2a of the housing 2 as shown by an arrow in FIG. 1, the press-fitting portion 1e is press-fitted and fixed to the U-shaped accommodation portion 2b, and the second The U-shaped portion 1d is attached to the housing 2 while being restricted by the U-shaped housing portion 2b in a state where the U-shaped portion 1d is changed from a sharply bent state to a parallel state, that is, bent in a direction to crush the U-shaped portion. Is done.

As described above, when the plurality of contacts 1 are inserted and mounted through the respective opening holes 2a, the pair of contacts 1, 1 located in the short direction of the housing 2 is connected to the contact portion 1
a, 1a are arranged so as to face each other with a predetermined distance therebetween, and the contact portions 1a, 1a change their S-shape by a later-described contacted member 3 inserted through an insertion hole 2c provided on the upper surface of the housing 2. It is pressed in the crushing direction and bends, and is electrically connected to the contacted member 3 by the contact pressure at that time.
That is, the plurality of contacts 1 are mounted in two rows at a predetermined pitch in the longitudinal direction of the housing 2, that is, the direction orthogonal to the direction in which the contact portions 1 a are pressed by the contacted member 3. Will be.

The contacted member 3 is made of an insulating material such as a synthetic resin and has a longitudinally extending insertion / removal piece 3a which is inserted into the insertion / removal hole 2c at the center so as to be substantially fitted to the housing 2 from the upper surface. It is formed in a box shape, and L
The contact piece 3b formed in the shape of a letter,
The other piece 3d is attached to the outer bottom surface of the box-shaped member on the side surface of 3a, and is arranged in two rows in the longitudinal direction at the same pitch as the contacts 1.

As shown in FIG. 3, a plurality of contacts 1 are surface-mounted on one surface of a printed circuit board 4 by solder connection while each terminal 1b is guided by a guide projection 2d provided on a housing 2. And the contacted member 3
Is mounted on one surface of the printed circuit board 5 by soldering while the other piece 3d of the contacted piece 3b is guided by the guide projection 3e. Then, when the insertion / extraction piece 3a is inserted into the insertion / extraction hole 2c and fitted into the housing 2, the contacted member 3 presses the contact portion 1a of the contact 1 with the one piece 3c of the contacted piece 3b. A printed board 5 is electrically connected to the board 4.

In such a connector, a contact 1 formed in a substantially S-shape by providing first and second U-shaped portions 1c and 1d, which are opposite to each other, is provided with a second U-shaped portion 1d. Is attached to the housing 2 while being restricted by the U-shaped accommodating portion 2b while being bent in the direction of crushing the U-shape.
The cross dimension L of the character is one of the two U-shaped portions 1c and 1d.
Since the second U-shaped portion 1d regulated by the housing 2 has no variation and is affected only by the first U-shaped portion 1c, the variation is reduced accordingly, and the displacement due to the contacted member 3 is reduced. Even in the same manner as in the conventional example, the second U-shaped portion 1d bends in advance in the direction of squashing the U-shape, and the contact pressure can be set to be large by an amount corresponding to the amount of bending attached to the housing 2, and thus more reliably. It can be electrically connected.

In this embodiment, the terminal portion 1b of the contact 1 is formed so as to extend parallel to one surface of the printed circuit board 4 so as to be surface-mounted on one surface of the printed circuit board 4. It may be formed so as to be inserted into a terminal hole of the substrate 4 and soldered and connected in a direction perpendicular to one surface of the printed circuit board 4.

[0022]

According to the connector of the present invention, a contact formed in a substantially S-shape by providing first and second U-shaped portions which are opposite to each other has a second U-shaped portion. Because it is attached to the housing while being regulated in the state of bending in the direction to collapse the character,
Since the second U-shaped portion restricted by the housing has no variation among the two U-shaped portions and is affected only by the first U-shaped portion, the S-shaped cross-over dimension varies accordingly. In addition, even if the displacement by the contacted member is the same as that of the conventional example, the second U-shaped portion bends in advance in the direction of crushing the U-shape and contacts by an amount corresponding to the amount of deflection attached to the housing. The pressure can be set to be large, and thus the connection can be made more reliably.

[Brief description of the drawings]

FIG. 1 is a sectional front view showing an embodiment of the present invention.

FIG. 2 is a perspective view of the same contact.

FIG. 3 is a cross-sectional front view showing a state where a contacted member is mounted on the connector of the above.

FIG. 4 is a partial sectional front view showing a conventional example.

FIG. 5 is a perspective view showing the contact according to the first embodiment;

[Explanation of symbols]

 1 Contact 1a Contact part 1b Terminal part 1c First U-shaped part 1d Second U-shaped part 2 Housing

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-5-144498 (JP, A) JP-A-53-88987 (JP, A) JP 5-11347 (JP, U) JP 5 15347 (JP, U) Japanese Utility Model Application Hei 5-75978 (JP, U) Japanese Utility Model Application Showa 48-19178 (JP, U) Japanese Patent Publication No. 39-10621 (JP, B1) Japanese Utility Model Showa 43-17473 (JP, Y1) J. 40-3898 (JP, Y1) (58) Fields investigated (Int. Cl. ⁷ , DB name) H01R 13/40, 23/68, 13/11

Claims (1)

(57) [Claims] A first U-shaped portion and a second U-shaped portion which are opposite to each other and are connected to a contact portion at one end and a terminal portion at the other end are formed in a substantially S-shape, and the contact portion is formed in an S-shape. A connector having a spring property so as to be able to be bent by being pressed in the direction of crushing, and a housing having a plurality of contacts arranged and mounted in a direction perpendicular to the direction in which the contact portions are pressed, The connector is characterized in that the contact is mounted on the housing while the second U-shaped part is regulated in a state of being bent in a direction to crush the U-shape.