JPH07153516A - Electric connecting device - Google Patents

Abstract

PURPOSE:To stabilize connection between terminals. CONSTITUTION:A pushing side terminal 1 and a receiving side terminal 2 into which the pushing side terminal 1 is inserted for connection are arranged. The receiving side terminal 2 has at least two female side contacts with a C-shaped section in which one end of one inner surface and the other end of the other outer surface adjacent each other are overlapped almost cylindrically. The pushing side terminal 1 has male side connectors 1 with a C-shaped section in which each tip 11a is inserted into an overlapped part 21a of the female side contact 21 by turning after insertion.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric connecting device for connecting a push-in side terminal to a receiving side terminal.

[0002]

2. Description of the Related Art Conventionally, as this type of electrical connecting device, there is one having a structure shown in FIGS. This is a receiver provided with a push-in terminal 1 provided with a male side contact 11 having elasticity in a direction orthogonal to the insertion direction, and a cylindrical female side contact 21 into which the male side contact 11 is inserted and connected. The side terminal 2 is provided.

The process of inserting the push-in side terminal 1 into the receiving side terminal 2 of the electric connecting device and connecting the same will be described below. Push-in terminal 1 into female contact 21 of receiving terminal 2
When the male side contact 11 is inserted, the male side contact 11 is compressed in a direction orthogonal to the insertion direction so as to be inscribed in the inner surface of the female side contact 21, and the female side contact is elastically returned to the compressed state. The inner surface of 21 is inscribed with a contact pressure, and the push-in side terminal 1 and the receiving side terminal 2 are connected.

[0004]

In the above-mentioned conventional electrical connection device, the push-in side terminal 1 has the male side contact 11 which is circumscribed on the female side contact 21 only by its own elastic force. Since it is connected to the receiving side terminal 2, there is a limit to increasing the contact pressure to such an extent that it can be pulled out in the pulling direction.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an electric connecting device in which the connection between the receiving side terminal and the pushing side terminal is more stable.

[0006]

In order to solve the above-mentioned problems, the first aspect of the present invention comprises a push-in side terminal and a receiving-side terminal into which the push-in side terminal is inserted and connected. In the electrical connecting device, the receiving-side terminal is formed by superposing one end portion of one inner surface and the other end portion of the other outer surface, which are adjacent to each other, in order, and at least two sheets each having a substantially C-shaped cross section are disposed in a substantially cylindrical shape. A female-side contact having a character shape is provided, and the push-in side terminal is rotated after being inserted, so that a tip end portion in a rotating direction is respectively sandwiched between overlapping portions of the female-side contact. The contact is provided on the male side.

According to a second aspect of the present invention, in the first aspect, the female side contact is arranged in a substantially cylindrical shape with an inner diameter capable of being inscribed in the inserted male side contact. It is configured.

According to a third aspect of the present invention, in the first aspect, the male side contact is connected by a connecting piece whose base end in the rotating direction passes through the center of rotation, and the connecting piece. Is provided with an extension portion extending in the direction of the rotation axis.

According to a fourth aspect of the present invention, in the first aspect, the female contact is provided with a cut portion that is cut from the other end in the rotational direction of the male contact, The male contact is provided with an engaging portion that engages with the end surface of the excised portion on the insertion side by rotating.

[0010]

According to the first aspect of the present invention, in the push-in side terminal, the male side contact having a substantially C-shaped cross section has one end portion of one inner surface adjacent to each other provided on the receiving side terminal and the other outer portion of the other. When the other end of the direction surface is sequentially inserted and inserted into at least two female side contacts having a substantially C-shaped cross section and then rotated, the male side contact is rotated. The front end in the direction is sandwiched between the overlapping portions of the female contacts, so that the front and back surfaces of the two female contacts are adjacent to each other by one inner surface and the other outer surface. .

According to the second aspect of the invention, in addition to the function of the first aspect, the male side contact is inscribed in the female side contact with its outer surface and is inserted with the contact pressure.

According to the third aspect of the present invention, the push-in side terminal is extended in the rotation axis direction of the connecting piece whose extension portion passes through the rotation center and is connected to the base end portion in the rotation direction. Therefore, the extended portion serves as a grip portion when gripping for rotating.

According to the fourth aspect of the present invention, in the push-in terminal, when the male contact of the male terminal rotates, the engaging portion of the male contact is cut off in the rotational direction of the male contact. It engages with the end surface on the insertion side of the cutout portion, and the movement in the direction opposite to the insertion direction is restricted.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to FIGS. Members having substantially the same functions as those of the conventional example are designated by the same reference numerals. This electrical connection device is composed of a push-in terminal 1 and a receiving-side terminal 2 to which the push-in terminal 1 is pushed and connected.

The pushing-side terminal 1 is formed by curving both end portions of a conductive plate material such as a copper alloy into a substantially C-shaped cross section so that the entire shape thereof becomes a substantially S-shaped cross section. The shaped portion is made up of two male contacts 11, 11, and the male contacts 11, 11 are tapered so that the inner diameter becomes smaller toward the tip in the insertion direction.

The male contacts 11, 11 will be described in detail later, but the distal ends 11a, 11a of the male side contacts 21 of the receiving side terminal 2 are rotated by rotating in the distal direction.
Is sandwiched between the overlapping portions 21a of the
Engaging portions 11b and 11b are provided on the inner surface of a so as to project by stamping.

Further, the push-in side terminal 1 extends from the connecting piece 12 which connects the base end portions 11c of the two male side contacts 11 and 11 passing through the rotation center thereof in the rotation axis direction. Is extended, and the tip of the extended portion 13 serves as an electric wire connecting portion 14 for connecting an electric wire, and the electric wire is crimped and crimped.

The receiving-side terminal 2 has two female-side contacts 21 and 21 each having a substantially C-shaped cross section formed by bending a conductive plate material such as a copper alloy. And the other end of the other outer surface is overlapped with each other, and the push-side terminal 1 is formed in a substantially cylindrical shape with an inner diameter capable of being inscribed when the male side contacts 11 and 11 are inserted.

The female-side contacts 21 and 21 extend from the other end to the vicinity of the center of the engaging portion 11 of the male-side contact 11.
Cutouts 21b, 21b, each of which has a width slightly larger than that of b, are cut out in the direction of rotation of the male contact 11 to form a slender shape.
The electric wire connecting portion 22 is extended from the opening end on the side opposite to the insertion side in a direction orthogonal to the insertion direction, and the electric wire is crimped and crimped.

Next, the procedure for connecting the push-in side terminal 1 to the receiving side terminal 2 will be described below. When the male side contacts 11 and 11 of the push-in side terminal 1 are inserted into the female side contacts 21 and 21 of the receiving side terminal 2 while being expanded with a taper, they are connected to the receiving side terminal 2 with a contact pressure,
Next, the push-in side terminal 1 is connected to the male side contact 11,
When the extended portion 13 is grasped and rotated in the distal direction of 11,
The front end portion 11 of the male side contacts 11, 11 in the rotating direction
a, 11a overlapped portion 2 of female contacts 21, 21
The male and female contacts 1a and 21a are contacted with each other by the two inner surfaces of the two female contacts 21 and 21 whose front and back surfaces are adjacent to each other, and the male and female contacts 21 and 21 are rotated. , 11 are engaged with the end faces 21c, 21c on the insertion side of the cutouts 21b, 21b of the female-side contacts 21, 21 to rotate, so that the male-side contacts 11, 11 are rotated. The distal end in the moving direction abuts on the distal end faces 21d, 21d in the rotating direction of the cutouts 21b, 21b of the female contacts 21, 21 to restrict the rotation. The cross section of the connection state at this time is shown in FIGS.

In this electrical connection device, the push-side terminal 1 has the male contact 11 of the push-side terminal 1 and the receiving-side terminal 2 thereof.
When it is inserted into the female side contact 21, it is inscribed with a contact pressure, and the extended portion 13 is grasped so that it can be easily rotated in the direction of the tip portion 11a of the male side contact 11. Tip 11 of contact 11 in the rotating direction
a The front and back surfaces of the female contact 21 are adjacent to each other by being sandwiched between the overlapping portions 21a of the female contact 21.
The two female contacts 21 are in contact with each other on one inner surface and the other outer surface, so that the connection with the receiving terminal 2 is stable.

Further, the engaging portion 11b of the male contact.
However, since the movement in the direction opposite to the insertion direction is restricted by engaging with the insertion-side end surface 21c of the cut-out portion 21b of the female contact 21, the pushing-side terminal 1 and the receiving-side terminal 2
It is possible to make it hard to come off.

Further, since the rotation ends when the distal end of the male contact 11 in the rotational direction comes into contact with the distal end surface 21d in the rotational direction of the cutout portion 21b of the female contact 21, the rotational angle is changed. It becomes constant and the contact pressure of the connection can be obtained with good reproducibility.

Next, a second embodiment of the present invention will be described with reference to FIGS.
It will be described below based on. The members having substantially the same functions as those in the first embodiment are designated by the same reference numerals, and
Only the points different from the examples will be described.

In the first embodiment, the push-in side terminal 1 is formed so that the entire shape thereof is substantially S-shaped in cross section, and the receiving side terminal 2 is formed.
While the female side contact 21 is provided with the cutout portion 21b, in the present embodiment, the pushing-side terminal 1 is provided.
Has a substantially C-shaped cross-section, and the receiving-side terminal 2 has a configuration in which the female-side contact 21 is not provided with the cutout portion 21b.

More specifically, the push-in side terminal 1 is formed by curving in a substantially C-shaped cross-section with a taper so that the inner diameter becomes smaller toward the tip in the inserting direction, and the opposing portions of the push-in side terminal 1 and the male contacts 11 and 11 are formed. The length in the insertion direction of the male side contacts 11 and 11 is longer than the length of the female side contact 21 of the receiving side terminal 2.

Further, the push-in terminal 1 is provided with a notch 15 which is notched from the tip in the insertion direction of the central portion in the opposite direction to the insertion direction, and extends from the notched tip of the central portion. By providing the wire connection portion 14, the wire is crimped and crimped.

Next, the procedure for connecting the push-in side terminal 1 to the receiving side terminal 2 will be described below. When the male side contacts 11 and 11 of the push-in side terminal 1 are inserted into the female side contacts 21 and 21 of the receiving side terminal 2 while being expanded with a taper, they are connected to the receiving side terminal 2 with a contact pressure.
Subsequently, when the push-in side terminal 1 is rotated in the direction of the tip of the one male side contact 11, the edge portion of the cutout portion 15 becomes the tip portion 11a of the other male side contact 11 in the rotational direction. One male contact 1
Female end contacts 21, 2
It is inserted into one overlapped portion 21a, 21a, and its front and back surfaces are in contact with each other by two inner surfaces of the two female contacts 21 and 21 adjacent to each other, that is, one inner surface and the other outer surface. The cross section of the connection state at this time is shown in FIGS.

In such an electrical connecting device, the push-in side terminal 1 has an edge portion in the cutout portion 15 which serves as a tip portion 11a in the rotating direction of the male side contact 11.
Since it is inserted into the overlapping portion 21a of the female contacts 21 and 21, the push-in terminal 1 and the receiving terminal 2 are connected in a stable manner as in the first embodiment.

Next, a third embodiment of the present invention will be described with reference to FIGS.
It will be described below based on. The members having substantially the same functions as those in the first embodiment are designated by the same reference numerals, and
Only the points different from the examples will be described.

In the second embodiment, the push-in side terminal 1 has the male contacts 11 and 11 having the engaging portions 11b and 11b.
Are provided so as to project inward by punching, and the receiving-side terminal 2 has female contacts 21 and 21.
While the cutout portions 21b, 21b of the male side contact 11 are provided with a width slightly wider than the engaging portion 11b of the male side contact 11, in the present embodiment, the push-side terminal 1 has the male side contacts 11, 11 thereof. Engaging portions 11b, 11b of the male side contacts 11, 11 are formed by the end faces of the excised portions obtained by excising the tip portions 11a, 11a of the male side contacts 11, 11, and the receiving side terminal 2
Is a cutout portion 21b of the female side contacts 21 and 21.
21b has a configuration in which the female contacts 21 and 21 are only notched.

Next, the procedure for connecting the push-in side terminal 1 to the receiving side terminal 2 will be described below. Similarly to the first embodiment, when the male side contacts 11 and 11 of the push-in terminal 1 are inserted into the female side contacts 21 and 21 of the receiving side terminal 2 and rotated, the cut ends in the rotational direction. Part 11a,
Two female side contacts 21 and 21 of which the front and back sides are adjacent to each other are in contact with each other on one inner surface and the other outer surface, and the other female contact 21 is the male side contact of the push-in terminal 1. 11, 11 the tip 11
The part not in contact with a and 11a spreads so as to overlap with one female contact 21, and the engaging portion 11b of the male contact 11 cuts the female contact 21 of the female contact 21.
When engaged with the end surface 21c on the insertion side of 1b and further rotated, the distal ends 11d, 11d in the rotation direction of the uncut portions of the male contacts 11, 11 overlap with one female contact 21. The rotation is restricted by contacting the other end surfaces 21e, 21e of the other expanded female-side contact 21. The cross section of the connection state at this time is shown in FIGS.

In such an electrical connecting device, each effect in the first embodiment can be obtained.

In the first and third embodiments, the extending portion 13 is axially extended from the connecting piece 12 of the push-in terminal 1, but the push-in terminal 1 can be easily rotated. When designed, the extension 13 may not be provided, and in that case, the push-in side terminal 1 is easily processed.

Further, in the first and third embodiments, the male contact 11 of the push-in terminal 1 is provided with the engaging portion 11b, and the female contact 21 of the receiving terminal 2 is arranged in the rotating direction of the female contact 11. Although the cutting portion 21b is provided,
If there is no fear that the male side contact 11 will come off from the female side contact 21, both may not be provided, and in that case, processing of the push-in side terminal 1 and the receiving side terminal 2 becomes easy.

In the first and third embodiments, the female terminal 2 of the receiving terminal 2 is the push-in terminal 1 of the female side contact 21.
It is formed with an inner diameter that is inscribed when the male contact 11 is inserted, but when the contact pressure is designed to be sufficiently large when the male contact 11 is rotated and connected, a slightly smaller inner diameter may be used. When, male contact 11
The insertion force is not required, and the allowable tolerance of the inner diameter is increased, so that the pressing-side terminal 1 can be easily processed.

Further, in the first to third embodiments, the male contact 11 of the push-in terminal 1 is provided with a taper, but it can be easily inserted into the female contact 21 of the receiving terminal 2. If it is designed so that it is not necessary to provide a taper, then the push-in terminal 1
Processing becomes easy.

[0038]

According to the first aspect of the present invention, in the push-in side terminal, the male side contact having a substantially C-shaped cross section has one end portion of one inner surface adjacent to each other provided on the receiving side terminal and the other outer portion of the other. When the other end of the direction surface is sequentially inserted and inserted into at least two female side contacts having a substantially C-shaped cross section and then rotated, the male side contact is rotated. The front end in the direction is sandwiched between the overlapping portions of the female contacts, so that the front and back surfaces of the two female contacts are adjacent to each other by one inner surface and the other outer surface. Therefore, the connection with the receiving terminal becomes stable.

According to the second aspect of the present invention, since the male contact is inserted into the female contact and the outer surface of the male contact is inscribed in the female contact, the internal contact pressure is also applied to the male contact. The effect of what is described can be further enhanced.

According to the third aspect of the present invention, the push-in side terminal is extended in the rotation axis direction of the connecting piece to which the extending portion passes through the rotation center and the base end portion in the rotation direction is connected. Therefore, since the extension portion serves as a grip portion when the extension portion is gripped to rotate, the pushing-side terminal can be easily rotated by gripping and rotating the extension portion.

According to a fourth aspect of the present invention, in the push-in side terminal, when the male contact of the male contact is rotated, the engaging portion of the male contact is removed in the rotating direction of the male contact. Since the movement in the direction opposite to the insertion direction is restricted by engaging with the insertion-side end surface of the portion, it is possible to prevent the pushing-side terminal from coming off the receiving-side terminal.

[Brief description of drawings]

FIG. 1 is a perspective view of a receiving side terminal and a pushing side terminal of a first embodiment of the present invention.

FIG. 2 is a front cross-sectional view after the above connection is made.

3 is a cross-sectional view taken along the line AA of FIG.

FIG. 4 is a perspective view of a receiving side terminal and a pushing side terminal of a second embodiment of the present invention.

FIG. 5 is a front cross-sectional view after the above connection.

6 is a sectional view taken along line BB of FIG.

FIG. 7 is a perspective view of a receiving side terminal and a pushing side terminal of a third embodiment of the present invention.

FIG. 8 is a plan cross-sectional view after the above connection.

9 is a cross-sectional view taken along line CC of FIG.

FIG. 10 is a perspective view of a receiving side terminal and a pushing side terminal of a conventional example.

FIG. 11 is a front cross-sectional view after the above connection is made.

12 is a cross-sectional view taken along the line DD of FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Push-in side terminal 11 Male side contact 11a Tip part 11b Engaging part 11c Base end part 12 Connecting piece 13 Extension part 2 Receiving side terminal 21 Female side contact 21a Overlapping part 21b Cutout part 21c Insert side end face

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[Procedure amendment]

[Submission date] December 2, 1994

[Procedure Amendment 1]

[Document name to be corrected] Drawing

[Correction target item name] Figure 9

[Correction method] Change

[Correction content]

[Figure 9]

Front page continuation (72) Inventor Yasuhiro Sumino 1048, Kadoma, Kadoma, Osaka Prefecture Matsushita Electric Works Co., Ltd.

Claims (4)

[Claims] 1. An electric connecting device comprising a push-side terminal and a receiving-side terminal into which the pushing-side terminal is inserted and connected, wherein the receiving-side terminal is one end portion of one inner surface adjacent to each other. And at least two female side contacts having a substantially C-shaped cross section, which are arranged in a substantially cylindrical shape by sequentially overlapping the other end portion of the other outer surface, and the pushing-side terminal is rotated after being inserted. An electrical connection device comprising: a male side contact having a substantially C-shaped cross section, the distal end of which in the direction of rotation is inserted into the overlapping portion of the female side contact by moving. 2. The electrical connecting device according to claim 1, wherein the female side contact is arranged in a substantially cylindrical shape with an inner diameter capable of being inscribed in the inserted male side contact. 3. The male side contact is connected by a connecting piece whose base end in the turning direction passes through the turning center, and the connecting piece is provided with an extension part extending in the turning axis direction. The electrical connection device according to claim 1, wherein 4. The female contact is provided with a cut portion that is cut from the other end in the direction of rotation of the male contact, and the male contact is rotated to insert the insertion side of the cut portion. The electric connecting device according to claim 1, further comprising an engaging portion that engages with an end surface of the electric connecting device.