JP2012018848A - Connector for wire branching - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a connector for wire branching, which is capable of consolidating wire crimping portions in wire branching and can be manufactured with only one proper crimping tool instead of many types of crimping tools.SOLUTION: A connector comprises detachable first and second connector portions made of insulation material. The first connector portion is provided with a relay connector made of conductive material and first and third relay pin contacts for a wire which are attached to two connection slots of the relay connector. The second connector portion is provided with a second relay pin contact for a wire. When the second relay pin contact of the second connector portion is inserted to the connection slot of the first relay connector, first, second, and third wires connected to the relay pin contacts are branched and wired.

Description

  The present invention relates to a wiring branch connector, and more particularly to a wiring branch connector suitable for manufacturing a railway vehicle.

  Many electric devices are mounted on a railway vehicle, and many electric wires (wirings) are wired in order to supply power to the electric devices or transmit output signals from the electric devices to other devices. Since these electric wires branch or merge, the wiring for connecting the electric devices is becoming more complicated.

  As an example of simplifying wiring that is becoming more complex, harnessing that consolidates wiring connection and branching has been devised, and is applied in many fields such as automobiles. An example of a highly versatile harness that can form such a branch wiring portion is described in Patent Document 1, for example.

JP 2001-57112 A

  When connecting electric devices provided in a railway vehicle by wiring, it is relatively easy to perform wiring using a harness produced by outwork. However, when wiring both the electrical equipment provided outside the vehicle (such as under the floor) of the railway vehicle and the electrical equipment provided in the vehicle, the wiring vehicle has an opening through which the wiring penetrates one of the hexahedrons constituting the railway vehicle. Since the harness must be passed through the opening, wiring with the harness may be difficult.

  FIG. 5 shows an example of a conventional wiring branch used when wiring with a harness is difficult. Conventionally, one end portion of the electric wire 83 and the end portion of the electric wire 81 and the electric wire 82 are crimped and connected by the crimping connector 1, thereby forming a wiring branching the electric wire 83 into the electric wire 81 and the electric wire 82. The other end of 83 is connected to the connector connector 3, and the electric wire 83 and the electric device 4 are connected via the connector connector 3.

  For this reason, in the connection location of the electric wire 83, the electric wire 81, and the electric wire 82, the crimping | compression-bonding operation | work of the crimping | compression-bonding connector 1 and the insulation treatment operation | work after a crimping operation were required. Moreover, the crimping | compression-bonding operation | work (connection operation | work) of the electric wire 83 and the connector connector 3 was required in the connection location to the electric equipment 4 via the connector connector 3. FIG. These crimping operations are performed by different types of crimping tools, and selection of the crimping tools may be left to the judgment and confirmation of the operator.

If a wrong crimping tool is selected, there is a possibility that a big problem such as a connection failure may occur. Therefore, there is a problem in reducing the types of crimping tools to be handled while reducing the number of wire crimping points.
An object of the present invention is to provide a connector for wiring branching that can be manufactured with a small number of types of crimping tools as well as consolidating wire crimping points in wiring branching.

  In order to achieve the above object, a wiring branch connector according to the present invention includes a first connector portion and a second connector portion made of a detachable insulating material, and the first connector portion includes a relay connector connector. A first relay pin contact connected to the relay connector connector and connected to the first electric wire; and a third relay pin contact connected to the relay connector connector and connected to the third electric wire; The second connector portion includes a second relay pin contact to which a second electric wire is connected, and when the first connector portion and the second connector portion are connected, the relay By connecting the second relay pin contact to the connector connector, the second relay pin contact, the first relay pin contact, and the third relay pin contact The tact and is connected, is characterized in.

  ADVANTAGE OF THE INVENTION According to this invention, while being able to integrate the crimping | compression-bonding location in branch wiring, branch wiring can be comprised with few kinds of crimping tools.

FIG. 1 is a schematic diagram showing an outline of a wiring branch connector according to the present invention. FIG. 2 is a perspective view showing the structure of the relay branch connector, the relay pin contact, and the electric wire, which is a wiring branch box incorporating the wiring branch connector of the present invention. FIG. 3 is a cross-sectional view taken along the line AA of FIG. FIG. 4 is a diagram illustrating a state in which the connector portion of the wiring branch connector is separated. FIG. 5 is a diagram showing an outline of a conventional wiring branch connection.

  Examples of the present invention will be described below. A present Example is a connector for wiring branches used for a rail vehicle. In the case of a railway vehicle, it has a plurality of devices such as a main circuit device, an auxiliary circuit device, and a brake device. For example, wiring (wiring) is required between the main circuit device, the current collector, and the main motor. . For this reason, simplification of the branch wiring which can reduce the work man-hour concerning wiring (wiring) is desired.

  FIG. 1 is a schematic diagram showing an outline of a wiring branch connector according to the present invention. The electric wire 8 includes electric wires 81, 82, 83, and these electric wires are electrically connected by a relay connector connector 6 built in the relay connector 5.

  The relay connector 5 is made of an insulating material, such as resin, and includes two separable connector parts 51 (first connector parts) and a connector part 52 (second connector part). One connector portion 51 includes a relay connector connector 6 connected to an electric wire 81 (first electric wire) and an electric wire 83 (third electric wire), and the other connector portion 52 is an electric wire 82 (second electric wire). ). The electric device 4 is mounted on a railway vehicle, and an electric wire 83 is connected thereto.

  FIG. 2 is a wiring branch box incorporating the wiring branch connector of the present invention, and is a perspective view showing the configuration of the relay connector connector, the relay pin contact, and the electric wire, and is built in the relay connector 5. In order to show the state of the relay connector connector 6, the relay pin contacts 92, 93 and the electric wires 81, 82, 83 in an easy-to-understand manner, the wiring branch box 7 is indicated by a one-dot chain line.

  The wiring branch box 7 houses a plurality of relay connectors 5, and a relay pin contact 91 to which a wire 81 is connected and a wire 83 are connected to the relay connector connector 6 provided in the relay connector 5. The relay pin contact 93 and the relay pin contact 92 to which the electric wire 82 is connected are electrically connected to form a branch wiring.

  3 is a cross-sectional view taken along the line AA of FIG. 2, and FIG. 4 is a diagram illustrating a state where the connector portion of the wiring branch connector is separated. The relay connector 5 includes a connector part 51 and a connector part 52 that are detachably configured.

  The connector portions 51 and 52 are formed of an insulating member, for example, resin, and the relay connector connector 6 is provided only in one of the connector portions.

  The relay connector connector 6 has cylinders 61 and 62 made of a conductive member such as metal arranged substantially in parallel and connects the cylinder 61 and the cylinder 62 with a conductive plate-like member. It is a form. The relay connector connector 6 is built in the connector part 51 in such a manner that the longitudinal direction of the tubular body 61 (cylindrical body 62) is aligned with the longitudinal direction of the connector part 51.

A relay pin contact 91 (first relay pin contact) to which an electric wire 81 (first electric wire) is connected is provided at one end in the longitudinal direction of the cylinder 61 of the relay connector connector 6 incorporated in the connector portion 51. The distal end portion is press-fitted, and the distal end portion of the relay pin contact 93 (third relay pin contact) to which the electric wire 93 (third electric wire) is connected is press-fitted into one end portion in the longitudinal direction of the cylindrical body 62. A cylindrical hole 511 is provided inside the connector portion 51 in such a manner that the other end portion in the longitudinal direction of the tubular body 61 of the relay connector connector 6 is continuous with the shaft of the tubular body 61.
Protrusions 512 and 512 are provided at the upper end and the lower end of the portion of the connector 51 where the connector 52 is opposed. Engagement parts 521 and 521 that engage with the protrusions 512 and 512 are provided at the upper end and the lower end of the part of the connector 52 where the connector 51 faces.

When the connector part 51 and the connector part 52 are connected, the distal end part of the relay pin contact 92 provided in the connector part 52 passes through the hole 511 of the connector part 51 and then the cylinder 61 of the relay connector connector 6. The branch wiring is configured by being press-fitted into the other end in the longitudinal direction. An electric wire 82 (second electric wire) is connected to the rear end portion of the relay pin contact 92 of the connector portion 52.
The vertical cross-sectional shape in the longitudinal direction of the cylinders 61 and 62 may be an ellipse whose minor axis is smaller than the diameter of the tip of each relay pin contact so that the tip of each relay pin contact can be reliably contacted. Good.

  By connecting the connector part 51 containing the relay connector connector 6 and the connector part 52 containing the relay pin contact 92, the other one in the longitudinal direction of the tubular body 61 of the relay connector connector 6 of the connector part 51 is connected. The end of the relay pin contact 93 of the connector portion 52 is press-fitted into the end portion, and branch wires of the wires 81, 83, 82 connected to the relay pin contacts are made in the relay connector 5.

  As described above, according to the relay connector 5 according to the present invention, since the crimping locations in the branch wiring are concentrated, the crimping tool can be only one type for connecting the connector portions 51 and 52, so that there are few. Can be crimped with various types of crimping tools.

  Further, according to the wiring branching system of the present invention, the structure of the relay connector 5 (relay connector connector 6) is changed, the number of the cylinders 61 and 62 is increased, and the respective cylinders are connected by the conductor. As a result, more branch circuits can be configured, and the degree of freedom in wiring design can be increased.

DESCRIPTION OF SYMBOLS 1 Crimp connector 2 Connector for apparatus connection 3 Connector connection part 4 Electric equipment 5 Connector for relay 6 Connector connector for relay 7 Wiring branch box 8 Electric wire 9 Relay pin contact

Claims (3)

It consists of a first connector part and a second connector part made of a detachable insulating material,
In the first connector portion,
Relay connector connector,
A first relay pin contact connected to the relay connector connector and connected to the first electric wire;
A third relay pin contact connected to the relay connector connector and connected to a third electric wire;
Is provided,
In the second connector part,
A second relay pin contact to which the second electric wire is connected;
When connecting the first connector part and the second connector part,
The second relay pin contact is connected to the first relay pin contact and the third relay pin contact by connecting the second relay pin contact to the relay connector connector;
Wiring branch connector characterized by In the wiring branch connector according to claim 1,
The relay connector connector is
Consisting of a plurality of cylinders and a connecting portion connecting the cylinders;
Wiring branch connector characterized by In the wiring branch connector according to claim 2,
The cross-sectional shape perpendicular to the longitudinal direction of the cylindrical body is an elliptical shape,
Wiring branch connector characterized by

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