JP3541540B2 - Wire harness using insulation displacement joint connector - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a wire harness using a press-fit joint connector, and more particularly to producing a temporary binding harness (sub-assay harness) for each system so that it can be used in common and collect necessary temporary binding harnesses for final binding. The connection between the electric wires is automatically performed by using a press-fit joint connector without using a splice.
[0002]
[Prior art]
Conventionally, various attempts have been made to improve the efficiency and automation of the wire harness manufacturing process. As one of the attempts, a temporary binding harness is manufactured in advance for each system, and necessary temporary binding harnesses are collected. , A method of connecting required circuits is provided. At this time, the most problematic is the connection of the circuits, and the following two methods are used as the connection method.
[0003]
In the first method, electric wires are connected by a splice connection. For example, as shown in FIG. 9, in the temporary binding harness A of the standard circuit system and the temporary binding harness B of the optional circuit system, one end of the splice circuit w2 is connected to the circuit w1 of the temporary binding harness A by intermediate splicing. The terminal T1 attached to the other end of the splice circuit w2 is connected to the connector C1 of the temporary binding harness B. Similarly, one end of the splice circuit w4 is intermediately spliced to the circuit w3 of the temporary binding harness A, and the splice circuit w4 is connected. Is connected to the connector C2 of the temporary binding harness B. In this way, the temporary binding harness A and the temporary binding harness B are connected to manufacture a dedicated harness.
[0004]
In the second method, a joint connector is connected to the temporary binding harness to form a common subassay harness, and a terminal attached to the wire terminal of another temporary subassayed temporary binding harness is inserted into the joint connector for connection. It is. That is, as shown in FIG. 10, the intermediate portions of the circuits w1 and w3 of the temporary binding harness A of the standard circuit system are respectively connected to the press contact terminals T3 and T4 in the joint connector JC, and the temporary binding harness B A terminal T1 'having one end connected to the connector C1 and attached to the other end of the circuit w2 was inserted into the joint connector JC and connected to the terminal T3. Similarly, one end was connected to the connector C2 of the temporary binding harness B. The terminal T2 'attached to the other end of the circuit w4 is inserted later into the joint connector JC and connected to the terminal T4.
[0005]
[Problems to be solved by the invention]
In the first splice connection method, since the splice circuits w2 and w4 need to be connected in advance to the temporary binding harness A of the standard system, the circuits w1 and w3 are changed from the standard standard line (single line) to the splice line. Becomes a dedicated wire. Further, the splice circuits w2 and w4 of the temporary binding harness A need to be inserted into the connector of the temporary binding harness B at the time of assembling and wiring. As described above, the first method requires a splicing step, increases the number of dedicated wires, and causes a large dedicated sub-assay harness. Further, since the terminal is inserted later into the connector, there is a problem when the terminal is deformed, and there is a disadvantage that it takes time and effort.
[0006]
In the second method, by connecting a joint connector to the temporary binding harness for the standard circuit, the common sub-assay harness can be shared. However, the size of the common sub-assay harness increases, and When the assay is connected, the terminal is inserted afterward as in the case of the first method, so that there is a problem when the terminal is deformed, and there is a disadvantage that it takes time and effort.
[0007]
As described above, in the first conventional method, the splicing step and the terminal insertion step are performed, so that it is difficult to automatically assemble the harness. Similarly, the second method also includes the terminal insertion step, so that the wire harness Is difficult to assemble automatically.
[0008]
The present invention has been made in view of the above-described conventional problems, and it is possible to produce a temporary binding harness for each system, collect necessary temporary binding harnesses, automatically connect required circuits, and enable automatic harness assembly. An object of the present invention is to provide a wire harness using a press-fit joint connector.
[0009]
[Means for Solving the Problems]
To achieve the above object, the present invention provides a subassembly harness shared that bundling a plurality of wires provided, the subassembly harness of at least a first of the wire electric wire-three consisting of the third wire The wires are inserted in parallel into the crimp joint connector,
In the press-connecting joint connector, a first press-connecting terminal and a second press-connecting terminal are arranged facing each other at intervals in the wire axis direction, and a plurality of first and second press-connecting terminals are provided in a direction orthogonal to the wire axis direction. With a blade portion of
The electric wire inserted into the press-connecting joint connector is press-connected by a press-connecting blade portion of the press-connecting terminal,
Among these wires, the first wire is cut and divided between the first pressure contact terminal and the second pressure contact terminal disposed opposite to each other, and one end of the divided first wire is connected to the first pressure contact terminal. And the other end of the divided first electric wire is intermediately spliced to the third electric wire via the second press-connecting terminal to form a branch circuit. And a wire harness using the press-fit joint connector.
[0010]
A cutting blade for cutting the electric wire between the two press contact portions is provided inside the press contact joint connector . The cutting blade may not be provided inside the connector, but may be attached to a press-contact device for pressing the electric wire against the press-contact terminal, and the cutting may be performed simultaneously with the press-contact operation.
[0011]
Further, the present invention provides a first temporary binding harness and a second temporary binding harness each binding a plurality of wires, and allows a required wire among the wires of the temporary binding harness to be inserted in parallel into the press-fit joint connector. And
In the press-connecting connector, a first press-connecting terminal and a second press-connecting terminal are arranged facing each other at an interval in the wire axis direction, and the first press-connecting terminal and the second press-connecting terminal are orthogonal to the wire axial direction. Equipped with multiple blades in the direction,
The first wire of the first temporary binding harness and the first wire of the second temporary binding harness, which are inserted into the press-fitting joint connector, are connected by the first pressure-connecting terminal and the first wire of the second temporary binding harness. And the second electric wire of the first temporary binding harness are pressed by the second press contact terminal, and the first electric wire of the second temporary binding harness is pressed against the press contact blades of the first press contact terminal and the second press contact terminal. One of the divided wire ends is intermediately spliced to the first wire of the first temporary binding harness via the first pressure contact terminal, and the split wire end is cut off. The other is intermediately spliced to the second electric wire of the first temporary binding harness via the second pressure contact terminal to form a press contact joint connector having a branch circuit between the first and second temporary binding harnesses. Wire harness used It has to offer.
[0012]
The first temporary tying harness may be a temporary tying harness of a standard circuit, and the second temporary tying harness that cuts an electric wire and press-connects to a different wire of the first temporary tying harness may be a temporary tying harness of an optional system. preferable. (Claim 3)
[0013]
By using the press-connecting joint connector as described above, it is not necessary to provide a splice circuit or a joint connector in advance in the temporary binding harness, and therefore, each temporary binding harness can be shared. Further, the required circuit can be connected and disconnected only by collecting the necessary temporary binding harnesses and pressing and connecting them with the press-connecting joint connector, and the harness assembly can be automated by the press-connecting connection of the press-connecting joint connector. Furthermore, there is no need for the operator to manually insert the terminals in the conventional manner, so that problems such as deformation of the terminals and half-fitting of the terminals do not occur.
[0014]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
1 to 4 show a press-fit joint connector used in the present invention. A connector housing 1 has an upper surface opening and three electric wire insertion openings 2 (2a, 2b, 2c), 3 ( 3a, 3b, 3c) are formed facing each other. As the configuration, the connector housing 1, a first conductive line w11 of three from above, the second wire w10, the third wire w12 allowed to be parallel to the insertion through the respective openings 2,3 I have.
[0015]
A first press contact terminal 10 and a second press contact terminal 11 are housed in the connector housing 1 in advance. As shown in FIG. 2, the first pressure contact terminal 10 and the second pressure contact terminal 11 each have a concave shape, and a pair of left and right vertical portions 10a and 10b, 11a and 11b are connected by lower horizontal portions 10c and 11c. I have. In the first press contact terminal 10, a pair of vertical portions 10a and 10b are provided with two press contact blade portions 10d, 10e, 10f, and 10g which are cut in a U-shape from the upper end, respectively. The opposing press contact blades 10d and 10f are first press contact blades, and 10e and 10g are second press contact blades. The second press contact terminal 11 has the same configuration, and has a pair of vertical portions 11a and 11b provided with first press contact blades 11d and 11e and second press contact blades 11f and 11g.
[0016]
As shown in FIGS. 3A and 3B, the first press contact terminal 10 is located on the left side inside the connector housing 1, the second press contact terminal 11 is located on the right side, and the horizontal portions 10c, 11c, respectively. Is positioned and held on the bottom wall 1c. In addition, the first press contact blade portions 10d and 10f of the first press contact terminal 10 and the first press contact blade portions 11d and 11f of the second press contact terminal 11 are connected to the left and right side walls 1a and 1b of the connector housing 1 by wire insertion openings. It is located along the same line (L1) as the central openings 2a, 3a. On the other hand, the second press-contact blade portions 10e and 10g of the first press-contact terminal 10 do not have the second press-contact terminal 11, and are along the same line (L2) as the front openings 2b and 3b of the electric wire insertion openings. It is located. Similarly, the second press-contact blade portions 11e and 11g of the second press-contact terminal 11 do not have the first press-contact terminal 10 and are along the same line (L3) as the rear openings 2c and 3c in the drawing of the electric wire insertion openings. Position.
The first press-contact blade portion 10f of the first press-contact terminal 10 and the first press-contact blade portion 11d of the second press-contact terminal 11, which are arranged along the line (L1), have a predetermined gap S along the wire insertion direction X. They are arranged facing each other.
[0017]
The connector housing 1 is provided with a connector cover 17 that inserts the electric wires w10, w11, and w12 and press-connects them, and then covers over the top surface and locks and fixes the opening in a closed state. A cutting blade 18 protrudes downward from the center of the inner surface of the upper wall 17a so as to be located in the gap S, and is inserted along the line L1 when the cover 17 is put on the connector housing 1. The center wire w11 to be cut can be cut at the same time.
[0018]
The cutting blade 18 has a cutting edge 18a protruding in a chevron shape, and is press-fitted from the end opposite to the cutting edge 18a into an inside of a mounting frame 17b protruding from the inner surface of the cover upper wall 17a. As shown in FIG. 3B, the mounting frame portion 17b is formed to have a length such that a portion of the cutting edge 18a of the cutting blade 18 is exposed from its protruding end portion, and the electric wire w11 is cut by the exposed cutting edge 18a. After passing through the lower end portion of the electric wire w11, the core wire of the electric wire w11 is in contact with both side surfaces of the mounting frame portion 17b so as to be reliably insulated. The cutting of the electric wire w11 by the cutting blade 18 causes the electric wire w11 to be divided into a divided portion w11-1 pressed against the first press contact terminal 10 and a divided portion w11-2 pressed against the second press contact terminal 11. I have.
[0019]
The connection structure of electric wires using the above-described press-welding joint connector will be described. As shown in FIG. 1, when forming two circuits intermediately connected to electric wires w10 and w12, another electric wire w11 is connected to the center. , Three wires w10 and w11 are inserted into the openings 2 and 3 of the press-connecting connector and wired in parallel. Among these three wires, the wire w10 is press-connected to the second press-contact blade portions 10e and 10g of the first press-contact terminal 10, and the central wire w11 is the first press-contact of the first press-contact terminal 10 and the second press-contact terminal 11. The blades 10d, 10f, 11d, and 11f are press-connected to each other, and the electric wire w12 is press-connected to the second press-contact blades 11e and 11g of the second press-connecting terminal 11.
[0020]
Next, the connector cover 17 is put on the connector housing 1. Thereby, the cutting edge 18a of the cutting blade 18 attached to the cover 17 abuts on the central electric wire w11. In this state, by pressing the connector cover 17 against the connector housing 1, the wire w11 is cut by the cutting edge 18a exposed from the mounting frame 17b of the cover 17, and at the same time, the connector housing 1 and the connector cover 17 are locked. .
[0021]
In the locked state, when the electric wire w11 is cut by the cutting blade 18, the electric wire w11 is divided into a portion that is press-connected to the first press-connecting terminal 10 and a portion that is press-connected to the second press-contact terminal 11, and the wire w11-1 And w11-2. Further, the cut end surface of the cut wire w11 comes into contact with both side surfaces of the mounting frame portion 17b of the cover 17, thereby reliably preventing the contact and the energization.
As a result, as shown in FIG. 4, the intermediate connection of the electric wire w11-1 to the electric wire 10 and the intermediate connection of the electric wire w11-2 to the electric wire 12 can be automatically performed by a single pressure welding operation.
[0022]
FIGS. 5 and 6 show an embodiment in which the common temporary binding harnesses which have been temporarily bound in advance are connected to each other by using a required electric wire and assayed using the above-mentioned press-fit joint connector. In the figure, reference numeral 20 denotes a first temporary binding harness of the standard circuit system, and reference numeral 21 denotes a second temporary binding harness of the optional circuit system. The connectors 22 and 23, 24 and 25 are connected to both ends of the wire group w, respectively. Therefore, the intermediate splice is not formed in the electric wire group, but is formed in advance as a common temporary binding harness.
[0023]
In the case where the temporary binding harnesses 20 and 21 are permanently bound, as shown in FIG. 6, wiring is performed through the temporary binding harnesses 20 and 21 on jigs 27 and 28 erected on a wiring diagram board 26. First wire w10 of the wire group of the first subassembly harness 20 for the standard circuit and a second conductive line w12, necessary to the intermediate connecting a first wire w11 of different second subassembly harness 21 for optional circuit Therefore, the electric wires w10 and w12 and one first electric wire w11 of the second temporary binding harness 21 are taken out and connected by pressure using the pressure joint connector 30 shown in FIGS. Due to the pressure connection, the first electric wire w11 is divided, and the divided electric wires w11-1 and 11w-2 are intermediately connected to the electric wires w10 and w12 of the temporary binding harness 20 for the standard circuit, respectively.
[0024]
The present invention is not limited to the above embodiment. As shown in FIG. 7, each press-connecting terminal has two or more press-connecting blades, and one press-connecting terminal 40 includes, for example, one of electric wires w20 and w21 on the option circuit side. The divided portion and the standard circuit electric wire w22 may be press-connected to each other, and another press-contact terminal 40 may be connected to the other divided portion of the electric wires w20 and w21 and the standard circuit electric wire w23 by press-contact. Further, as shown in FIG. 8, in a connector housing of the press-fit joint connector, one wire is cut and divided into two wires shown in FIG. Needless to say, two or more units may be installed in the direction Y.
[0025]
【The invention's effect】
As is apparent from the above description, in the wire harness using the press-connecting joint connector of the present invention, the press-connecting joint connector press-connects one wire to different press-connecting terminals at two locations, and press-connects the two press-connecting portions. Since the electric wire is divided by cutting at a position between the electric wires, it is possible to automatically form a branch circuit in which these divided electric wires are connected intermediately to other electric wires. As described above, since the branch circuit can be automatically formed by using the press-fitting joint connector without depending on the splice, the terminal provided on the other temporary binding harness to which the conventional joint connector is attached is inserted later. Thus, there is no need to form a branch circuit. In other words, the splicing step and the terminal insertion step can be eliminated, and the branch circuit can be formed only by the pressure welding operation using the pressure welding joint connector. As a result, it is only necessary to provide a temporary binding harness in which both ends of the electric wire group are connected to the connector, and the temporary binding harness can be shared.
[0026]
In addition, when collecting necessary temporary binding harnesses from the pre-formed temporary binding harnesses and performing final binding, connection of required circuits can be automatically performed using a press-fitting joint connector. Can facilitate automation. Therefore, assembling of the wire harness can be performed efficiently, and productivity can be increased.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view showing an embodiment of a press-fit joint connector used in the present invention.
FIG. 2 is a perspective view of a main part of the press-fit joint connector of FIG. 1;
3A is a cross-sectional view of the press-connecting joint connector of FIG. 1, and FIG. 3B is a center cross-sectional view of FIG.
FIG. 4 is a schematic diagram showing a connection structure of a wire harness by the press-fit joint connector of FIG. 1;
FIG. 5 is a schematic view of a wire harness bound by using the press-fit joint connector of the present invention.
FIG. 6 is a schematic view showing an assembling process of the wire harness of FIG. 5;
FIG. 7 is a schematic view showing another embodiment of the press-connecting joint connector.
FIG. 8 is a schematic view showing another embodiment of the press-fit joint connector.
FIG. 9 is a schematic view showing a conventional example.
FIG. 10 is a schematic view showing another conventional example.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Connector housing 2, 3 Wire insertion opening 10 First press contact terminal 11 Second press contact terminal 10d, 10f, 11d, 11f First press contact blade 10e, 10g, 11e, 11g Second press contact blade 17 Connector cover 18 Cutting blade 20 Temporary binding harness for standard circuit 21 Temporary binding harness w10, w11, w12 for optional circuit

Claims (3)

The subassembly harness shared that bundling a plurality of wires provided, is parallel to inserted into pressure contact joint the connector to three wires of at least a first wire to third wire of the wire of the subassembly harness And
In the press-fitting joint connector, a first press-connecting terminal and a second press-contacting terminal are arranged facing each other at an interval in the wire axis direction, and a plurality of first and second press-connecting terminals are provided in a direction orthogonal to the wire axis direction. With a blade portion of
The electric wire inserted into the press-connecting joint connector is press-connected by a press-connecting blade portion of the press-connecting terminal,
Among these wires, the first wire is cut and divided between the first pressure contact terminal and the second pressure contact terminal disposed opposite to each other, and one end of the divided first wire is connected to the first pressure contact terminal. And the other end of the divided first electric wire is intermediately spliced to the third electric wire via the second press-connecting terminal to form a branch circuit. and the wire harness with press joint connector has. A first temporary binding harness and a second temporary binding harness each binding a plurality of wires are provided, and required wires among the wires of the temporary binding harness are inserted in parallel into the press-fit joint connector,
In the press-connecting connector, a first press-connecting terminal and a second press-connecting terminal are arranged facing each other at an interval in the wire axis direction, and the first press-connecting terminal and the second press-connecting terminal are orthogonal to the wire axial direction. Equipped with multiple blades in the direction,
The first wire of the first temporary binding harness and the first wire of the second temporary binding harness, which are inserted into the press-fitting joint connector, are connected by the first pressure-connecting terminal and the first wire of the second temporary binding harness. And the second electric wire of the first temporary binding harness are pressed by the second press contact terminal, and the first electric wire of the second temporary binding harness is pressed against the press contact blades of the first press contact terminal and the second press contact terminal. One of the divided wire ends is intermediately spliced to the first wire of the first temporary binding harness via the first pressure contact terminal, and the split wire end is cut off. The other is intermediately spliced to the second electric wire of the first temporary binding harness via the second pressure contact terminal to form a press contact joint connector having a branch circuit between the first and second temporary binding harnesses. Wire harness used The wire harness according to claim 2, wherein the first temporary binding harness is a temporary binding harness of a standard circuit, and the second temporary binding harness is a temporary binding harness of an optional system.

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