JPH06111873A - Connector - Google Patents

Abstract

PURPOSE:To surely perform connection. CONSTITUTION:This connector is provided with contacts 1 formed in a nearly S-shape with a first and a second U-shape part 1c, 1d which respectively stretch along the contact part 1a of one end part and the terminal part 1b of the other end part in the opposite direction to each other being provided and have the property of spring to warp with the contact 1a pressed in the direction of breaking the letter S and a housing 2 provided in a row in the direction perpendicularly crossing the direction in which the plural contacts 1 press the contact part 1a. The contact 1 is mounted on the housing 2 regulated in such a state that the second U-shape part 1d warps in the direction to break the letter S. Therefore, since the dimension L across the letter S of the contact 1 does not vary with the second U-shaped part 1d but is affected only by the first U-shaped part 1c, the variations of the dimension are reduced to that extent. Also, even when an amount of displacement (not shown) due to a contacted member is the same, contact pressure can be set larger by a corresponding amount of warp which the second U-shaped part 1d is regulated by, so that electrical connection can be surely performed.

Description

Detailed Description of the Invention

[0001]

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

[0002]

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

Reference numeral A denotes a contact, which is a leaf spring material such as phosphor bronze and has first U-shaped portions A ₃ and _{3 which} are opposite to each other and are connected to the contact portion A _{1 at one} end and the terminal portion A ₂ at the other end, respectively. A second U-shaped portion A ₄ is provided and bent in the plate thickness direction in a substantially S shape, and further, on both sides of a portion where the terminal portion A ₂ and the second U-shaped portion A ₄ are continuous. Has a press-fitting portion A ₅ provided with a protrusion A ₆ protruding in the plate thickness direction.

Reference numeral B denotes a housing, which is made of an insulating material such as synthetic resin and has a long shape, and a substantially T-shaped through hole B ₁ having thin press-fitting grooves B ₂ on both sides of the end is formed on the bottom surface thereof. The press-fitting grooves B ₂ are arranged in two rows at a predetermined pitch in the longitudinal direction so that the press-fitting grooves B ₂ are located on the opposite side in the lateral direction as a pair.

The contact A has a press-fitting portion A _{5 which} is a protrusion.
It is inserted into the press-fitting groove B ₂ so as to be press-fitted and fixed by A ₆ , and the substantially S-shaped part from the part where the press-fitting part A ₅ extends to the contact part A ₁ passes through the through hole B _1. It is inserted into the inner space of housing B. In this way, when a plurality of contacts A are inserted through the through holes B ₁ , the pair of contacts A, A located in the lateral direction of the housing B are
A ₁ , A ₁ are arranged so as to face each other with a predetermined interval, and the contacted member C is inserted from the insertion / extraction hole B ₃ provided on the upper surface of the housing B so that the contact portions A ₁ , A ₁ are The S-shape is pressed and bent in the direction of crushing, 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 contacted members C ₁ and A ₁ are pressed by the contacted member C. Has been done.

[0006]

In the above-mentioned conventional connector, the contact A has the first and second opposite directions of the leaf spring material which are bent at one point instead of one point. The U-shaped portions A ₃ and A ₄ are formed in a substantially S-shape at two locations, so the S-shaped crossover dimension shown in FIG.
It is difficult to reduce the variation of L.

By the way, the contact A is pressed by the contacted member C inserted from the insertion / extraction hole B ₃ of the housing B in the direction in which the contact portion A ₁ collapses the S shape, that is, the dimension L is reduced. When the dimension L is large, the contact portion A ₁ is contacted by the contacted member C because it is electrically connected to the contacted member C by the contact pressure generated by the bending and the amount of bending at that time. If the dimension is easily deformed and the dimension L 1 is small, the contact pressure may be lower than a predetermined value, which may cause a problem in the electrical connection state.

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

[0009]

In order to solve the above-mentioned problems, the connector of the present invention has a first U and a second U which are opposite to each other and are connected to the contact portion at one end and the terminal portion at the other end, respectively. A contact which is formed in a substantially S shape by providing a character portion and has a spring property so that the contact portion can be pressed and deflected in a direction in which the S shape is crushed, and a direction in which a plurality of contacts are pressed in the contact portion is orthogonal. In a connector having a housing mounted in a row in the direction of
The U-shaped part is regulated in a state of being bent in the direction of crushing the U-shape and is mounted on the housing.

[0010]

According to the connector of the present invention, the contact formed in the substantially S-shape by providing the first and second U-shaped portions opposite to each other has the second U-shaped portion with the U-shaped portion. Because it is regulated in the state of bending in the direction of crushing the character and is mounted on the housing,
Of the two U-shaped portions, the S-shaped crossover dimension has no variation in the second U-shaped portion regulated by the housing and is influenced only by the first U-shaped portion. In addition, even if the amount of displacement by the contacted member is the same as the conventional example, the second U-shaped portion is pre-bent in the direction in which the U-shape is crushed, and the second U-shaped portion is attached to the housing in an amount corresponding to the amount of deflection. The pressure can be set to a large value, so that the electrical connection can be made more reliably.

[0011]

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

Reference numeral 1 denotes a contact, which is made of a leaf spring material such as phosphor bronze and is connected to a contact portion 1a at one end and a terminal portion 1b at the other end, respectively, and has a first U-shaped portion 1c and a second U-shaped portion 1c which are opposite to each other. A U-shaped portion 1d is provided and bent in a plate thickness direction in a substantially S shape, and a portion where the terminal portion 1b and the second U-shaped portion 1d are continuous is formed on both sides in the plate width direction. Triangular press-fitting part protruding to
1e is provided.

Here, in the second U-shaped portion 1d, both side portions of the bent portion, that is, the 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. As shown, the angle θ formed by the both side portions is bent at an acute angle.

Reference numeral 2 denotes a housing, which is made of an insulating material such as a synthetic resin and has a long shape. The cross section thereof has a substantially rectangular symmetrical shape 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 of the contact 1 is formed in the back of the opening hole 2a.
A U-shaped accommodating portion 2b that accommodates the U-shaped accommodating portion 1d is provided, and an insertion / extraction hole 2c that is continuous in the longitudinal direction is provided at the center of the upper surface so as to communicate with the U-shaped accommodating portion 2b inside.

Here, the U-shaped accommodating portion 2b is the housing 2
Is formed to be slightly wider than the plate width of the contact 1 so that the press-fitted portion 1e of the contact 1 can be press-fitted, and the width in the lateral direction is the second U-shaped portion of the contact 1. It is formed to be narrower than the above-mentioned opening formed 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 the arrow in FIG. 1, the press-fitting portion 1e is press-fitted and fixed in the U-shaped accommodating portion 2b, and the second The U-shaped portion 1d is mounted on the housing 2 so that the U-shaped portion 1d is regulated by the U-shaped accommodating portion 2b in a state in which the U-shaped portion is bent from an acute angle to a parallel state, that is, is bent in a direction in which the U-shape is crushed. To be done.

In this way, when a plurality of contacts 1 are inserted from the respective opening holes 2a and mounted, the pair of contacts 1,1 located in the lateral direction of the housing 2 are
a, 1a are arranged so as to face each other with a predetermined gap, and the contact portions 1a, 1a form an S-shape by a contacted member 3 described later that is inserted from an insertion hole 2c provided on the upper surface of the housing 2. It is pressed in the crushing direction to bend, 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 in a row at a predetermined pitch in the longitudinal direction of the housing 2, that is, in the direction orthogonal to the direction in which the contact members 1a, 1a are pressed by the contacted member 3. Will be there.

The contacted member 3 is made of an insulating material such as synthetic resin and has an insertion / extraction piece 3a continuous in the longitudinal direction which is inserted in the insertion / extraction hole 2c at the center so that the contacted member 3 can be fitted into the housing 2 from the top side. Formed in a box shape and made of a metal material, L
The contacted piece 3b formed in a letter shape, the one piece 3c is inserted and removed
On the side surface of 3a, the other piece 3d is attached to the outer bottom surface of the box shape, and is arranged in two rows in the longitudinal direction at the same pitch as the contacts 1.

As shown in FIG. 3, the plurality of contacts 1 are surface-mounted on one surface of the printed circuit board 4 by soldering the respective terminal portions 1b while being guided by the guide protrusions 2d provided on the housing 2. The contacted member 3
Is surface-mounted on one surface of the printed circuit board 5 by solder connection while the other piece 3d of the contacted piece 3b is guided by the guide protrusion 3e. When the insertion / extraction piece 3a is inserted into the insertion / extraction hole 2c and fitted into the housing 2, the contacted member 3 prints by pressing the contact portion 1a of the contact 1 by one piece 3c of the contacted piece 3b. The printed circuit board 5 is electrically connected to the circuit board 4.

In such a connector, the contact 1 formed in a substantially S shape by providing the first and second U-shaped portions 1c and 1d opposite to each other has the second U-shaped portion 1d. Is mounted in the housing 2 while being regulated by the U-shaped accommodating portion 2b in a state of being bent in the direction in which the U-shape is crushed, S shown in FIG.
The crossover dimension L of the letter is the value of the two U-shaped parts 1c and 1d
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, so the variation is reduced accordingly, and the amount of displacement by the contacted member 3 is reduced. Even if it is the same as the conventional example, the second U-shaped portion 1d is pre-flexed in the direction of crushing the U-shape, and the contact pressure can be set to be large by an amount corresponding to the deflection amount mounted on the housing 2. Therefore, more reliably. It can be electrically connected.

In this embodiment, the terminal portion 1b of the contact 1 is formed 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 in a terminal hole of the board 4 and connected by soldering in a direction orthogonal to one surface of the printed board 4.

[0022]

According to the connector of the present invention, the contact formed in the substantially S-shape by providing the first and second U-shaped portions opposite to each other has the second U-shaped portion formed by the U-shaped portion. Because it is regulated in the state of bending in the direction of crushing the character and is mounted on the housing,
Of the two U-shaped portions, the S-shaped crossover dimension has no variation in the second U-shaped portion regulated by the housing and is influenced only by the first U-shaped portion. In addition, even if the amount of displacement by the contacted member is the same as the conventional example, the second U-shaped portion is pre-bent in the direction in which the U-shape is crushed, and the second U-shaped portion is attached to the housing in an amount corresponding to the amount of deflection. The pressure can be set to a large value, so that the electrical connection can be made more reliably.

[Brief description of drawings]

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

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

FIG. 3 is a sectional front view showing a state in which a contacted member is attached to the connector of the above.

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

FIG. 5 is a perspective view showing a contact of the above.

[Explanation of symbols]

 1 Contact 1a Contact part 1b Terminal part 1c 1st U-shaped part 1d 2nd U-shaped part 2 Housing

Claims (1)

[Claims] 1. A contact portion at one end and a terminal portion at the other end are provided with first and second U-shaped portions that are opposite to each other and are formed in a substantially S-shape, and the contact portion has the S-shape. In a connector provided with a contact having a spring property so that it can be bent by being pressed in the direction of crushing, and a housing in which a plurality of contacts are installed in a row in a direction orthogonal to the direction in which the contact portion is pressed, The connector is characterized in that the second U-shaped portion is mounted in the housing while being regulated in a state in which the second U-shaped portion is bent in a direction in which the U-shaped portion is crushed.