JP2001135398A - Contact - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a contact which can ease a relative movement of the contact and an opposing contact caused by vibration shock or a difference in thermal expansion, can be roughly handled, and can keep a large contact. SOLUTION: In a contact 11 according to the invention, an engagement part formed of a contact part 20 and an outer wall is formed in one body with the contact. A connection part 33 which connects the contact 20 with the outer wall functions as a follow spring. As a result, the contact part 20 is connected with an inner plane of a top plate wall 18 and kept there in a floating manner. The contact part 20 has a cross section almost of U-shaped, wherein the cross section is made cutting the contact part vertically to the long direction thereof.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a contact, and more particularly, to a contact for preventing sliding friction, that is, fretting, of a contact of a contact portion forming a fitting portion with a mating contact (pin contact). .

[0002]

2. Description of the Related Art As this type of contact, there is a conventional example of the following type.

A contact-following type with a devised contact element portion (JP-A-10-189102) The contact is firmly stopped by increasing the contact pressure.

[0004] A contact-following type which is devised other than the contact element portion (EPO492479B1, JP-A-07-296)
No. 886) With respect to a socket contact that receives a pin contact, a spring element for creating a follow-up mechanism is formed by bending the spring element so as to wrap in the harness direction or the contact element portion in the insertion / removal direction from the root thereof, and the contact element follows mechanism by the spring element Has been created.

[0005] Contact holding type (Shiho 59-4456)
JP-A-58-23175, JP-A-58-23175
No. 126683) The contact elements are firmly fixed and the number of contacts is increased to stabilize. The effect of multiple contacts is brought out by the arrangement method of the contacts.

[0006] A contact holding type (Jpn.
No. 9102) An insulator presses down a contact element part.

[0007] In view of this situation, June 3, 1999
On the date, the patent applicant of the present invention (Japan Aviation Electronics Industry Co., Ltd.) has filed a patent application No. 156337.

[0008]

SUMMARY OF THE INVENTION Patent Application No. 156337
In the conventional example, the contact part of the fitting part is exposed,
Due to the external force at the time of the harness of the connector or after the harness, the contact part may deform so as to affect the performance, it is necessary to handle it very carefully, and the effects that should be exhibited for the extreme external force There was a risk that the opposite effect would occur.

Therefore, the technical problem of the present invention is not only to alleviate the relative movement between the contact and the counterpart contact due to vibration impact, thermal expansion difference, etc., but also to make it possible to handle the contact somewhat rough. It is to provide a contact with a structure in which a force can be obtained.

[0010]

The present invention employs the following means in order to solve the problems.

(1) A contact portion extending in a longitudinal direction from one contact end to a bent contact portion and having a contact for receiving a mating contact, and bent from the bent contact portion so as to surround the periphery of the contact portion. And a fitting portion comprising an outer wall extending along the longitudinal direction is integrally formed, and the contact portion is held in a floating state, thereby alleviating relative movement even when receiving the external force in the longitudinal direction. A contact, characterized in that:

(2) In the contact according to (1), the contact portion has a pair of contacts, and the contact portion includes
A contact having a substantially U-shaped cross section cut along a plane perpendicular to the longitudinal direction.

(3) In the contact according to (2), the outer wall is formed by bending a substantially rectangular substrate wall, both side plate walls extending from both sides of the substrate wall, and one side plate wall. A pair of long side portions, one short side portion, and a substantially rectangular top plate wall having a bent short side portion, and bent inward from the bent short side portion to extend inward and extend the tip of the mating contact. A connecting portion provided with an insertion hole to be inserted, and the outer wall surrounds the periphery of the contact portion so that the outer wall surrounds the board wall, the side plate walls, and the top plate wall, and the contact portion includes the contact portion, A socket contact arranged so as to be connected to an inner surface of a top wall, wherein the connecting portion is a follower spring that follows and urges along the longitudinal direction.

[0014]

The contact portion constituting the contact and the outer wall are integrally formed.

[0015] The outer wall surrounds the periphery of the contact portion in the longitudinal direction (fitting direction).

On the other hand, the connecting portion connecting the contact portion and the outer wall is bent inward from the bent short side of the top plate wall and extends. Therefore, the connecting portion acts as a follow-up spring along the longitudinal direction. As a result, the internal contact portion is connected to the inner surface of the top plate wall extending along the longitudinal direction (the fitting direction),
Held floating.

[0017] Even when an external force is applied in the longitudinal direction, the mating contact is inserted through the insertion hole of the connecting portion of the outer wall and does not hit. As a result of the follower being biased by the connecting portion, the relative movement or relative movement between the contact portion and the contact portion (Sn contact) of the counterpart contact is absorbed or canceled. Therefore, sliding friction generated between the contact portion of the contact and the mating contact is reduced.

The contact of the present invention has such a robust outer wall. As a result, the contact portion arranged inside the outer wall does not deform so as to affect the performance due to the external force at the time of or after the harness of the connector, and the contact of the present invention ensures a stable contact force. Is done.

[0019]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A contact according to an embodiment of the present invention, that is, an embodiment will be described with reference to the drawings (FIGS. 1 to 5).

As shown in FIGS. 1 to 7, the socket contact 11 of the present invention is formed by bending a single plate many times.

Referring particularly to FIG. 2, the socket contact 11 of the present invention extends from one contact end to the bent contact portion in the longitudinal direction (fitting direction) and receives a mating (pin) contact 14. Contact 20 having a lower contact 16 and an upper contact 18,
And an outer wall extending in the longitudinal direction from the bent contact portion so as to surround the periphery of the zero. The lower contact 16 and the upper contact 18 have dowels 16A and 18A, are opposed to each other, and are connected via an upper and lower contact coupling portion 19.

More specifically, the outer wall (box, ie, box-shaped portion) of the fitting portion is composed of a substrate wall 25 and both side plate walls 27, 2.
9 and the top plate wall 31 are formed so as to go around the contact portion 20. Therefore, the cross section of the contact portion 20 cut along a plane perpendicular to the longitudinal direction has a substantially U shape.
As a result of the fitting part comprising the contact part 20 and the outer wall of the socket contact 11 of the present invention being integrally formed, the contact part 20 arranged inside is connected along the top plate wall 31 extending in the longitudinal direction, Held floating.

In other words, the upper contact 1 as one contact member
Numeral 8 is connected to an outer wall (box-shaped portion) via a connecting portion 33 acting as a follow-up spring.

The outer wall of the socket contact 11 has a substantially rectangular substrate wall 25, both side plate walls 27 and 29, and a substantially rectangular shape having a pair of long sides and a short side having one end and a bent short side. And a connecting portion 33 which is bent inward from the bent short side and extends and has an insertion hole 52 formed through the tip of the mating contact.

At the center of the top plate wall 31, the socket contact 11 is connected to the socket contact side insulator 5 shown in FIG.
The lance 23 for preventing the socket contact 11 from coming off after being inserted into the first contact hole 51-1 is provided. A key groove 24 for preventing erroneous insertion is formed in one side plate of the top plate wall 31, that is, the key 24-1.

The socket contact 11 of the present invention is fitted so that the lance 23 is hooked on the insulator 51 on the socket contact side, so that the socket connector is assembled. Thereafter, the socket connector is connected to a pin connector, that is, the pin contact 14 shown in FIG.
And is used as a fretting-free connector.

The outer substrate wall 25 includes a cable cable bare wire crimping portion 55 and a cable coating crimping portion 57 extending along the longitudinal direction.

As described above, even if the contact of the present invention is subjected to an external force in the longitudinal direction, the relative movement is alleviated only by inserting the mating contact through the insertion hole of the connecting portion of the outer wall. Therefore, in the contact of the present invention, even if the contact moves due to vibration or thermal expansion, the movement between the contacts hardly occurs, and since the contact portion is protected by the outer wall, it is safe to handle the contact somewhat rough. .

[0029]

The contact according to the present invention has a contact portion which receives the mating contact in a floating state through the insertion hole when the mating contact is inserted, so that the internal contact portion extends along the longitudinal direction (the fitting direction). It is connected to the inner surface of the top plate wall that extends and is held in a floating state.

Therefore, it is possible to provide a contact having a structure capable of following the longitudinal direction and preventing relative movement between the contact portions so that fretting corrosion which greatly affects the contact performance does not easily occur. effective.

Further, the contact of the present invention can be roughly handled, and is particularly effective for a connector that requires considerable stability of the contact force of the contact.

[Brief description of the drawings]

FIG. 1 is a perspective view of a contact, ie, a socket contact 11, according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view of the socket contact 11 of FIG. 1 cut along a plane perpendicular to the longitudinal direction, that is, a II-II plane.

FIG. 3 is a cross-sectional view of the socket contact 11 of FIG. 1 cut in a longitudinal direction, that is, along a line III-III.

FIG. 4 is a development view of the socket contact 11 of FIG.

FIG. 5 is a cross-sectional view showing a fitted state in which the socket contact 11, the socket-side insulator 51, and the pin-side insulator 61 are assembled and then cut vertically along the line VV.

FIG. 6 is a perspective view of a socket-side insulator 51 relating to a contact according to an embodiment of the present invention. The socket side insulator 51 provided with the contact hole 51-1 into which the socket contact 11 is inserted is shown.

FIG. 7 is a perspective view of a pin contact-side insulator 61 according to a contact according to an embodiment of the present invention.

[Description of Signs] 11 Socket contact 14 Counterpart (pin) contact 16 Lower contact 16A Dowel 18 Upper contact 18A Dowel 19 Upper and lower contact joint 20 Contact part 23 Lance 24 Key groove 24-1 Key 25 Substantially rectangular plate shape Board wall 27 Side plate wall 29 Side plate wall 31 Top plate wall 33 Connecting portion (following spring) 51 Socket contact side insulator 51-1 Contact hole 52 Insertion hole 55 Cable bare wire crimping portion 57 Cable film crimping portion 61 Pin contact side insulator 63 Cable

Claims (3)

[Claims] A contact portion extending in a longitudinal direction from one contact end to a bent contact portion and having a contact for receiving a mating contact; and a contact portion bent from the bent contact portion so as to surround a periphery of the contact portion. A fitting portion comprising an outer wall extending along the longitudinal direction is integrally formed, and the contact portion is held in a floating state, thereby alleviating relative movement even when receiving the external force in the longitudinal direction. Contacts. 2. The contact according to claim 1, wherein the contact portion has a pair of contacts, and the contact portion has a cross section cut along a plane perpendicular to the longitudinal direction. A contact characterized by being shaped like a letter. 3. The contact according to claim 2, wherein the outer wall is bent from a substantially rectangular substrate wall, both side plate walls extending from both sides of the substrate wall, and one side plate wall, and is extended from the side wall. A substantially rectangular top plate wall having a pair of long side portions, one short side portion, and a bent short side portion, which is bent inward from the bent short side portion to extend and penetrates the tip of a mating contact; A connecting portion having an insertion hole formed therein, wherein the outer wall surrounds the contact portion so as to orbit around the board wall, the both side plate walls, and the top plate wall, and the contact portion is The socket contact is arranged so as to be connected to the inner surface of the plate wall, whereby the connecting portion is a following spring that follows and urges along the longitudinal direction.