JPH06111878A - Connector - Google Patents

Abstract

PURPOSE:To improve reliability of contact. CONSTITUTION:This connector is provided with a housing 1 having a guide part 1a for guiding a contact member 3 and two contacts 2, 2 having the property of spring, which are held by the housing 1 substantially at its central part 2c so that contact parts 2a, 2a on one free end side in close proximity of the inlet of the guide part 1a have a predetermined gap and face against each other and the terminal parts 2b, 2b on the other free end side are led out to the outside. And in the housing 1, an outside surface 1b led out in the terminal part 2b is formed like a circular arc so that the central part is mostly projected in the opposed direction of the contact parts 2a, 2a and at the same time the outside surface 1b abuts on the flat inside bottom surface 4a of a base 4 for fixing. Therefore, when the contacted member 3 is inclined to one of the contacts 2, 2 within the range of allowance, the housing 1 can be reciprocated together with the contact part 2a of the contact 2 on the flat inside bottom surface by the outside surface 1b like a circular arc in the direction which the contacted member 3 is inclined to. Thereby, such unbalanced contact pressure that it increases on the inclined side and decreases on the opposite side is not produced.

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 so that two contacts face each other with a predetermined gap.

[0002]

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

A is a housing, which is a flat member C to be contacted.
A guide portion A ₁ dug in parallel is provided along the center in the longitudinal direction so as to be guided and inserted, and is formed in a long shape.

B and B are two contacts, which are made of a leaf spring material, and _one of the contact portions B ₁ and B ₁ on the free end side has a predetermined gap in the vicinity of the inlet of the guide portion A ₁ of the housing A. And the terminal portions B ₂ and B ₂ on the other free end side are supported by the housing A so that the substantially central portions B ₃ and B ₃ are supported by the housing A.
Are arranged in a row at a predetermined pitch in the longitudinal direction. At this time, in the two contacts B, B, the gap between the contact portions B ₁ , B ₁ is shorter than the width of the guide portion A ₁ , so that the flat member C to be contacted is guided by the guide portion A of the housing A. Inserted so that it can be guided in ₁ with some allowance, contact parts B ₁ , B ₁
The contacted member C is pressed by the contacted member C in a direction to widen the gap and bends, and the contacted portions provided on both sides of the contacted member C respectively.
It is designed to be electrically connected to C ₁ , C ₁ with a predetermined contact pressure.

[0005]

In the above-mentioned conventional connector, the two contacts B, B are the contact portions B ₁ , B ₁
Is pressed by the flat plate contacted member C inserted so as to be guided by the guide part A ₁ of the housing A in a direction to widen the gap and bends, and the contacted parts C ₁ provided on both sides of the contacted member C ₁ respectively. Although with a C ₁ with a predetermined contact pressure is adapted to be electrically connected, the contact member C is the guide portion a ₁
Since there is always a slight margin to be inserted into the contact member C, the contacted member C is, as shown by the chain double-dashed line in FIG.
The contact portion B or B is inclined to that extent by the margin, and the contact portions B ₁ and B ₁ increase the deflection on the inclined side and increase the contact pressure, but on the other side, An amount of unbalance, which reduces the deflection and reduces the contact pressure, causes a loss of contact reliability.

The present invention has been made in view of the above circumstances, and an object thereof is to provide a connector having more excellent contact reliability.

[0007]

In order to solve the above-mentioned problems, the connector of the present invention has a housing having a guide part for guiding a contacted member and one free end side near the inlet of the guide part. Connector having two spring-like contacts whose substantially central portions are supported by the housing so that the contact portions of the two are opposed to each other with a predetermined gap and the other terminal portion on the free end side is led out to the outside. The housing has a configuration in which the outer side surface of the terminal portion, which is led out, is formed in a convex shape with the center most protruding in the facing direction of the contact portion.

[0008]

According to the connector of the present invention, in the housing, the outer side surfaces of the terminal portions of the two spring-like contacts, which are led out, are formed in a convex shape with the center most protruding in the facing direction of the contact portions. Therefore, when the contacted member inclines to either one of the contacts within the margin of the guide part of the housing, the housing has a convex outer surface on the flat mounting surface in the inclined direction of the contacted member. It can be swung together with the contact part of the contact, so that the contact pressure between the contacted member and the contact part does not cause an imbalance such that the inclined side increases and the opposite side decreases as in the conventional example, and the contact pressure is increased. It will be highly reliable.

[0009]

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 housing, which is made of an insulating material such as synthetic resin and has a long shape. A guide portion 1a dug deep in parallel is provided at the center of the upper surface along the longitudinal direction. The outer surface of the bottom is located on both sides of the guide 1a in the lateral direction.
A pair of contact accommodating portions 1d, 1d having press-fitting grooves 1c, 1c penetrating through 1b and communicating with the guide portion 1a are provided at a predetermined pitch in the longitudinal direction.

By the way, the outer surface 1b is the housing.
In the lateral direction of 1, that is, in the direction in which the contact portions 2a, 2a of the two contacts 2, 2 described later are opposed to each other, they are formed in a convex shape,
More specifically, as shown in FIG. 1, the cross-sectional shape is formed into an arc shape with the center protruding most, and the locked portions 1e, 1e protruding outward are provided at both ends in the longitudinal direction. . The locked portion 1e is a portion to be locked by a locking portion 4c of the fixed base 4 which will be described later, and the opposite side of the outer surface 1b is the locked surface 1d. Similarly to the outer surface 1b, the housing 1 is formed to have an arcuate shape with the center thereof protruding most in the lateral direction.

Reference numerals 2 and 2 are two contacts, which are made of a leaf spring material such as phosphor bronze and have a predetermined gap in one of the contact portions 2a and 2a on the free end side near the inlet of the guide portion 1a of the housing 1. So that the terminal portions 2b, 2b on the other free end side are led out from the outer surface 1b to the outside by pressing the substantially central portions 2c, 2c into the press-fitting grooves 1c, 1c.
By being press-fitted and supported by c, they are accommodated in the pair of contact accommodating portions 1d, 1d and arranged in a row in the longitudinal direction of the housing 1 at a predetermined pitch. At this time, in the two contacts 2 and 2, the gap between the contact portions 2a and 2a is shorter than the width of the guide portion 1a, so that the flat contacted member 3 is slightly attached to the guide portion 1a of the housing 1. When inserted so as to be guided with a margin, the contact portions 2a, 2a are pressed by the contacted member 3 in a direction to widen the gap and bend to contact the contacted member 2a.
The parts to be contacted 3a, 3a provided on both sides of 3 are electrically connected with a predetermined contact pressure.

Reference numeral 4 denotes a fixed base, which is made of an insulating material such as synthetic resin and is formed in a long box shape so as to surround the outer surface 1b of the housing 1, and the inner bottom surface 4a thereof is a flat surface.
The terminal portion 2b has an insertion hole 4b into which the terminal portion 2b can be inserted, and locking portions 4c, 4c having flat locking surfaces 4d at both ends in the longitudinal direction and protruding inward are provided. And housing 1
As shown in FIG. 2, the locked portions 1e, 1e are the locking portions 4c, 4c.
When mounted on the fixed base 4 so that
The arc-shaped outer surface 1b and the locked surface 1d of 1 come into contact with the flat inner bottom surface 4a and the locking surface 4d of the fixed base 4, and the terminal portion 2b is led out from the insertion hole 4b of the fixed base 4, It is connected to a printed circuit board or the like.

In such a connector, the housing 1
Is the outer surface 1b and the locked surface 1d, which are formed to have an arc shape with the center protruding most in the lateral direction.
Since it abuts against the flat inner bottom surface 4a and the locking surface 4d of the housing 1, when the contacted member 3 tilts to either one of the contacts 2 and 2 within a margin of the guide portion 1a of the housing 1, the housing 1 is circular. With the arc-shaped outer surface 1b, it is possible to swing on the flat inner bottom surface 4a of the fixed base 4 in the inclined direction of the contacted member 3 together with the contact portion 2a of the contact 2, so that the contacted member 3 and the contact portion 2a The contact pressure is more excellent in contact reliability without causing an imbalance, such as an increase in the inclined side and a decrease in the opposite side as in the conventional example.

In this embodiment, the housing 1 has a flat mounting surface with which the arcuate outer surface 1b abuts.
Although fixed to the fixed base 4 having the flat inner bottom surface 4a, the fixed base 4 may be omitted if the mounting surface of the printed circuit board or the like is flat.

The outer surface 1b of the housing 1 may be formed in a convex shape other than an arc shape as long as it can swing on a flat mounting surface.

[0017]

According to the connector of the present invention, the housing is formed such that the outer side surfaces of the terminal portions of the two contacts having springiness are led out so that the center thereof is most protruded in the facing direction of the contact portions. Therefore, when the contacted member inclines to either one of the contacts within the margin of the guide part of the housing, the housing has a convex outer surface on the flat mounting surface in the inclined direction of the contacted member. It can be swung together with the contact part of the contact, so that the contact pressure between the contacted member and the contact part does not cause an imbalance such that the inclined side increases and the opposite side decreases as in the conventional example, and the contact pressure is increased. It will be highly reliable.

[Brief description of drawings]

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

FIG. 2 is a side sectional view of the above.

FIG. 3 is a sectional front view showing a conventional example.

[Explanation of symbols]

 1 Housing 1a Guide part 1b Outer side surface 2 Contact 2a Contact part 2b Terminal part 2c Substantially central part 3 Contacted member

Claims (1)

[Claims] 1. A housing having a guide portion for guiding a contacted member, and a contact portion at one free end side in the vicinity of the inlet of the guide portion, facing each other with a predetermined gap, and a terminal at the other free end side. In a connector having two spring-like contacts whose central portion is supported by a housing so that the terminal portion is led out to the outside, the housing is such that an outer side surface of the terminal portion, which is led out, in a direction opposite to the contact portion. A connector characterized in that it is formed in a convex shape with the center most protruding.