JP2001155792A - Crimp joint terminal and connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a crimp joint terminal and connector that does not require an attaching machining for LA terminals for grounding and has substantially increased covered wires to be connected simultaneously. SOLUTION: A crimp joint terminal 11 is formed in U-shape of cross section by pressing to bend one sheet of conductive steel plate, and includes a frame 12, a plurality of pressed terminals 13 formed uprightly at both ends of the frame 12, and a LA terminal 14 extending laterally from lateral ends of the frame 12. The LA terminal 14 is connected to an earth terminal.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a press-fit joint terminal and a connector used for connecting covered electric wires in a wire harness or the like.

[0002]

2. Description of the Related Art FIG. 6 shows a conventional joint terminal for connecting covered wires of a wire harness of an automobile or the like. This press-joint terminal 1 is formed by pressing a single conductive plate to form a U-shaped cross section, and includes a frame portion 2 and a plurality of portions formed by vertically raising both ends of the frame portion 2. And a press-contact terminal section 3 of FIG. The plurality of press contact terminals 3 are arranged at a predetermined pitch. Each of the press contact terminals 3 has a slit 4 whose width gradually decreases from the upper end to the center. An escape groove 5 is formed between the press contact terminals 3. Each of the press-connecting terminal portions 3 of the press-connecting joint terminal 1 breaks the coating of the covered wire 6 and contacts the internal conductor by sandwiching the covered wire 6 between the slits 4. In the illustrated example, five covered electric wires 6 are electrically connected to each other by one joint terminal 1. The press-joint terminal 1 is accommodated in a housing (not shown) to form a joint connector.
In conventional joint connectors, when the insulated conductor is pulled, the insulated wire is bent and press-fitted into the connector so that an excessive load is not applied to the connecting terminal when the insulated terminal is pulled. One that prevents the movement of electric wires due to overload (Japanese Patent Laid-Open No. 10-162880)
(Japanese Patent Application Laid-Open No. 10-270999), and a device in which the wire is prevented from moving by bending and holding the wire in a crank shape with a revolving holding portion.

[0003]

However, the above-mentioned conventional joint connector can only connect electric wires, and when the connected electric wires are grounded, for example, as shown in FIG. One of the plurality of interconnected insulated wires 6 of the insulation displacement joint connector 8 is used for ground connection, and the LA terminal 9 is connected to the end of the insulated wire 6 for ground connection. Electric wire 6
Each of the coated electric wires 6 is grounded via a switch. Therefore, it is necessary to attach the LA terminal 9 to the insulated wire 6 for grounding.
However, since one of them is used for grounding, there is a problem that the number of insulated wires that can be simultaneously connected is substantially reduced by one per connector.

The present invention has been made in order to solve such a problem, and does not require mounting processing of a grounding LA terminal, and can substantially increase the number of insulated wires that can be simultaneously connected. An object of the present invention is to provide a joint terminal and a joint connector using the same.

[0005]

According to the present invention, there is provided a press-joint terminal having a plurality of press-connecting terminals for breaking the coating of the covered wire to be in contact with an inner conductor by sandwiching the covered wire. Press-connecting joint terminals for connecting the covered electric wires sandwiched between the press-connecting terminal portions by electrically connecting the portions to each other by the frame portion, wherein the LA terminal portion extends from the frame portion integrally with the frame portion. Is provided.

The press-fitting joint connector according to the present invention includes a plurality of press-connecting terminal portions that break the coating of the covered wire and come into contact with the internal conductor by sandwiching the covered wire, and the press-connecting terminal portions are frame portions. A crimp joint terminal for connecting the insulated wires sandwiched between the respective crimp terminal portions by being electrically connected to each other, and the crimp joint terminals are housed together with the insulated wires crimped to the respective crimp terminal portions. A press-fit joint connector provided with a covering member, wherein the press-contact joint terminal is provided with an LA terminal portion extending from the frame portion integrally with the frame portion, and the covering member includes the LA terminal portion. The pressure welding joint terminal is housed in a state of being exposed to the outside.

According to the present invention, since the LA terminal portion is formed integrally with the frame portion so as to extend from the frame portion of the press-connecting joint terminal, each of the LA terminal portions is directly connected to the ground portion so that each of the LA terminal portions is directly connected to the ground portion. The covered electric wire connected to the insulation displacement terminal can be grounded. According to the present invention, there is no need to connect a special covered electric wire for grounding or to connect an LA terminal portion to the end of the covered electric wire, and it is possible to reduce the number of processing steps and reduce costs. In addition, since another covered electric wire can be connected to the conventional electric wire connecting portion for grounding, the number of connectable electric wires per connector can be substantially increased. Further, since the LA terminal portion is integrally connected to the frame portion of the press-connecting joint terminal, the weight can be reduced by the absence of the electric wire, and the connection reliability is increased.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to embodiments shown in the drawings. FIG. 1 is a plan view (a) and a front view (b) of a press-joint terminal according to one embodiment of the present invention, and corresponds to FIGS. 6 (a) and 6 (c), respectively. As shown in the figure, the press-joint terminal 11 is formed by pressing a single conductive plate to form a U-shaped cross section, and vertically raises a frame portion 12 and both ends of the frame portion 12. And a plurality of press contact terminals 13 formed as described above, and an LA terminal portion 14 integrally extending laterally from a side end of the frame portion 12. Multiple insulation displacement terminals 1
3 are arranged at a predetermined pitch. Each insulation displacement terminal 13
Is formed with a slit 15 whose width gradually decreases from the upper end to the center. An escape groove 16 is formed between the press contact terminals 13.

Each press contact terminal portion 13 breaks the coating of the covered electric wire 6 and contacts the internal conductor by sandwiching the covered electric wire 6 between the slits 15. In the illustrated example, the five covered electric wires 6 are electrically connected to each other by one press-contact joint terminal 11. This crimp joint terminal 11
Is housed inside a housing and a cover, for example, as a covering member 21 to form a joint connector.

FIG. 2 illustrates a housing 22 and a cover 23 for accommodating the press-contact terminal 11 therein as the covering member 21. Only the LA terminal portion 14 is exposed outside the housing 22 and the cover 23. By connecting the LA terminal 14 to a ground portion (not shown), the coated electric wire 6 connected to each press contact terminal portion 13 can be easily grounded.

FIG. 3 is a view showing a press-fit joint connector according to another embodiment of the present invention. FIG. 3 (a) is a plan view of the connector removed from above and FIG. 3 (b) is a front view. is there.
As shown in the drawing, the press-joint terminal 31 is composed of a frame portion 32 and a plurality of press-contact terminal portions 33 that stand vertically from the frame portion 32. The plurality of press contact terminals 33 are alternately arranged on one conductive plate such that the press contact terminals 33 adjacent to each other in a direction orthogonal to the direction in which the covered wire 6 extends partially overlap when viewed from the direction in which the covered wire 6 extends. In addition, at least two press contact terminals 33 that are in contact with the same covered electric wire 6 in the extending direction of the covered electric wire 6 are arranged. An LA terminal portion 34 extending from the side end is integrally formed at the side end of the frame portion 32. The press-contact terminal section 33 is housed in the press-contact joint terminal 31 by the housing 41 and the cover 42. The LA terminal 34 is exposed to the outside similarly to the previous embodiment.

When the pressure welding joint terminal 31 has such a configuration, the arrangement pitch of the insulated wires 6 can be made shorter than that of the previous embodiment, so that the size of the entire sealing portion can be reduced. It can be easily attached to the ground.

As the covering member, in addition to the one using the housing and the cover as described above, for example, as shown in FIG. , And sealed with the covered electric wire 6 inside, for example, an insulating molded body 51 made of resin or the like.

Further, when the covering member is constituted by the housing 22 and the cover 23 as shown in FIG. 2, a waterproof seal structure as shown in FIG. 5 may be employed. That is, the housing 21
The upper surface is opened, and the opening on the upper surface is
Thus, the housing 21 and the cover 22 form a semi-hermetic internal space 13 surrounding the press-contact joint terminal 1 inside. Two grease injection holes 25 communicating with the internal space 24 are formed at positions facing each other. Then, the grease injection hole 25 formed in the housing 22 and the cover 23 is provided in a state where the press-fit joint terminal 11 is housed in the housing 22, the covered wire 6 is press-fitted into the press-fit terminal portion 13, and the cover 23 is attached.
Then, the tip of the grease injection nozzle 26 is inserted into the inner space 24 from the grease injection nozzle 26 to fill grease 27. As a result, the internal space 24 is filled with the grease 27, so that even if water permeates from the gap between the housing 22 and the cover 23, the covered conductor 6 is sealed by the grease 27.
The contact portion between the inner conductor and the press contact terminal portion 13 has improved waterproofness. In addition, in the grease injection hole 25 after the grease injection,
If necessary, it may be sealed with a seal or the like (not shown) so that the internal grease does not leak out.

[0015]

As described above, according to the present invention, since the LA terminal portion is formed integrally with the frame portion of the press-connecting joint terminal so as to extend from the frame portion, a special insulated wire for grounding can be provided. There is no need to connect or connect the LA terminal portion to the end of the covered electric wire, so that the number of processing steps can be reduced and cost can be reduced. In addition, since another covered electric wire can be connected to the conventional electric wire connecting portion for grounding, the number of connectable electric wires per connector can be substantially increased. Further, since the LA terminal portion is integrally connected to the frame portion of the press-connecting joint terminal, the weight can be reduced by the absence of the electric wire, and the connection reliability is increased.

[Brief description of the drawings]

FIG. 1 is a view showing a press-joint terminal according to one embodiment of the present invention, wherein FIG. 1 (a) is a plan view and FIG. 1 (b) is a front view.

FIG. 2 is a perspective view of a connector using the same pressure welding joint terminal.

3A and 3B are views showing a press-joint terminal according to another embodiment of the present invention, wherein FIG. 3A is a plan view and FIG. 3B is a front view.

FIG. 4 is a perspective view of a press-fit joint connector according to still another embodiment of the present invention.

FIG. 5 is a sectional view of a press-fit joint connector according to still another embodiment of the present invention.

6 (a) is a plan view, FIG. 6 (b) is a side view, and FIG. 6 (c) is a front view.

FIG. 7 is a plan view showing a ground connection structure of a conventional pressure welding joint connector.

[Explanation of symbols]

1,11,31 ... Crimping joint terminal, 2,12,32
... Frame part, 3,11,33 ... Press contact terminal part, 6 ... Coated electric wire, 14,34 ... LA terminal part, 22 ... Housing, 2
3 ... Cover.

Claims (2)

[Claims] A plurality of press contact terminals for breaking a coating of the covered wire by being sandwiched by the covered wire and contacting an inner conductor, and the press contact terminals are electrically connected to each other by a frame portion. Press-connecting joint terminals for connecting the covered electric wires sandwiched between the press-connecting terminal portions by each other, and LA extending from the frame portion integrally with the frame portion.
A pressure welding joint terminal characterized by having a terminal portion. 2. A plurality of press-contact terminals, the cover being in contact with an internal conductor by breaking the coating of the covered wire by being sandwiched by the covered wires, and the press-connect terminals being electrically connected to each other by a frame. A press-fit joint comprising: a press-fit joint terminal for connecting the insulated wires sandwiched between the press-contact terminals by the press-fit joint terminal; In the connector, the press-connecting joint terminal is provided with an LA terminal portion extending from the frame portion integrally with the frame portion, and the covering member is configured to perform the press-contact while exposing the LA terminal portion to the outside. A press-fit joint connector for housing a joint terminal.