JPH0636808A - Terminal processing structure of pressure contact connector - Google Patents

Abstract

PURPOSE:To provide a terminal part processing structure of a pressure contact connector, in which a connector piece and the electric cable of the pressure contact connected part of the pressure contact connector are prevented from being separated from one another, and in which the pressure contact connector is formed compact. CONSTITUTION:Each connector piece 3 is stored and retained in each connector storage part 2 of a connector housing 1. Each terminal end part of electric cables 5 is brought into pressure-contact with and connected to each pressure contact edge part 3a of the connector pieces 3. Each terminal part of the electric cables 5 extending from the connector pieces 3 is bonded and fixed to the connector housing 1 by an adhesive 9.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a terminal treatment structure of a pressure contact connector for preventing an external force from acting on a pressure contact connection portion between a connector and an electric wire in the pressure contact connector.

[0002]

2. Description of the Related Art Generally, when a connector is used, a certain mechanical holding strength is required between the connector and the electric wire. For example, in automobiles, a connector is used in an environment where vibration occurs, and the force of pulling out an electric wire from the connector is constantly acting. In addition, when the wire is pulled in an attempt to separate the male and female coupled connectors, a very large force temporarily acts on the connector. In addition, in consideration of protection against external force during processing, a device to secure mechanical holding strength (hereinafter referred to as holding force) between the connector and the electric wire, which are usually housed and held on the connector side, has been devised. Has been done.

On the other hand, crimping or pressure welding is well known as a method of connecting the connector and the wire end portion. It is relatively easy to secure a large holding force in the case of crimping, but it is difficult to obtain a large holding force in the case of crimping, and there is a great risk that the crimping connection part will come off, which is a problem. .

Therefore, when the connection method by pressure contact is adopted, various methods and structures have been proposed to reduce the action of external force on the pressure contact connection portion to prevent separation, for example, Japanese Utility Model Publication No. 62-118363. There is one disclosed in the official gazette and Japanese Utility Model Laid-Open No. 4-15160.

[0005]

However, according to the structure disclosed in Japanese Utility Model Publication No. 62-118363,
This holding force is closely related to the outer diameter of the wire because it is a method of mechanically fixing and holding the housing and the wire by arranging the wire in a bent shape by using the unevenness of the connector housing. However, there is a problem in that the electric wire is bent and arranged, which causes an increase in the size of the press-connecting connector.

Further, according to the structure disclosed in Japanese Utility Model Laid-Open No. 4-15160, a method of arranging the electric wire in a bent shape by utilizing the unevenness of the connector and mechanically fixing and holding the connector and the electric wire is provided. is there. In this case, it is possible to adapt to various wire outer diameters by changing the crimp height of the wire, but as with the above, because the wire is bent and placed, the insulation for crimping the connector is also used. It is necessary to provide a ration barrel, and in order to obtain a large holding force, the size of the connector must be increased,
As a result, there is a problem in that the press-connecting connector becomes large.

In view of the above problems, the present invention effectively prevents the press-connecting connection portions of the connector and the electric wire end portion of the press-connecting connector from being separated from each other, and also makes the press-connecting connector compact. It is an object of the present invention to provide a terminal processing structure for a pressure contact connector that can handle different outer diameters.

[0008]

A first technical means for achieving the above-mentioned object is to connect a core portion of a wire end portion to a connector by pressure contact at an end portion of an electric wire, and the connector is housed and held in a connector housing. In this pressure contact connector, the electric wire terminal portion extended from the connector is bonded or fused and fixed to the connector housing.

A second technical means is an insulation displacement connector in which a core wire portion is pressure-contact connected to a connector at an end portion of an electric wire, and the connector is housed and held in a connector housing and extending from the connector. The electric wire terminal portion and the connector housing are adhered and fixed to each other using an adhesive sheet.

[0010]

According to the first invention and the second invention, the core wire portion is pressure-contacted to the connector, and the wire terminal portion extended from the connector and the connector housing are fixed by adhesion or fusion. Therefore, the wire end portion and the connector housing are integrated, and even if an external force in the pulling direction acts on the wire, the pulling force is dispersed at the portion fixed to the connector housing, and the wire end portion and the connector are connected to each other. Since the pulling force does not act directly on the press-connecting connection part of, the disconnection between the connector and the wire end can be effectively prevented.

Further, since it is not necessary to bend the wire end portion, and it is not necessary to provide an insulation barrel for crimping the connector, the pressure contact connector can be made compact and the wire outer diameter is different. Even if there is, it can be easily handled.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the first invention will now be described with reference to the drawings. In FIGS. 1 and 2, reference numeral 1 is a connector housing of a pressure contact connector, and a plurality of connector accommodating portions 2 are arranged in parallel in the width direction. The connector 3 is housed and held in each connector housing portion 2.

The end portions of the electric wires 5 are press-fitted between the opposing pairs of press-contact blade portions 3a provided on each connector 3, and the press-fitting presses the cover portion 5a of each electric wire 5 into contact.
The core wire portion 5b of the electric wire 5 and the press contact blade portion 3a are press-contacted with each other by being cut into a, and the press contact connection state of the core wire portion 5b of each electric wire 5 and each connector 3 is formed here.

The end portion of the electric wire 5 extending rearward from each connector 3 is housed in a positioning manner in a plurality of semi-arcuate concave groove portions 8 formed in the connector housing 1. . Then, at the position of the recessed groove portion 8, the connector housing 1 and the end portion of the electric wire 5 are applied from the upper portion of the electric wire 5 with an ultraviolet curable adhesive or an epoxy-based or acrylic-based adhesive 9
Etc. are fixed to each other by adhesion.

The first embodiment of the first invention is configured as described above, and since the end portion of the electric wire 5 and the connector housing 1 are adhered and fixed by the adhesive 9 and integrated with each other, the holding force is improved. Even if an external force is applied to the electric wire 5 in the pulling direction, the pulling force is dispersed at the adhesive fixing portion with the connector housing 1 and is directly applied to the pressure welding connecting portion between the end portion of the electric wire 5 and the connector 3. Therefore, the pulling force does not act, and the disconnection between the connector 3 and the end portion of the electric wire 5 can be effectively prevented.

Further, since it is not necessary to bend and arrange the end portion of the electric wire 5 and it is not necessary to provide an insulation barrel for crimping on the connector 3 side, the connector 3 and the connector housing 1 are compact. The pressure contact connector itself can be made compact.

Further, even if the outer diameters of the electric wires 5 are different, the same construction can be adopted, and it is possible to easily cope with the electric wires 5 having different outer diameters.

Further, since the end portion of the electric wire 5 is directly adhered and fixed to the connector housing 1, the connector housing 1
The external force acting on the press-connecting connection portion between the electric wire 5 and the connector 3 can be significantly reduced as compared with the case where the cover is attached to the cover attached to the connector housing 1 before the cover is attached in the manufacturing process. And the electric wire 5 may be moved in a connected state. For example, it may be covered when the housings 1 having different temporary bindings are combined in a separate process, and the detachment of the electric wire 5 and the connector 3 at the press-connecting connection portion can be effectively prevented even during this movement.

FIGS. 3 and 4 show a second embodiment of the first aspect of the invention, in which an adhesive 9 is applied across the width direction at the positions of the respective recessed grooves 8 on the rear portion of the connector housing 1, and then the wire 5 is applied from above. The end portion of the electric wire 5 is adhered and fixed to the connector housing 1 by press-contacting the end portion and then thermosetting the adhesive 9. In the figure, the same structures as those described above are designated by the same reference numerals, and the description thereof will be omitted.

FIGS. 5 and 6 show a third embodiment of the first invention, which shows a structure using a ribbon cable 12 in which each electric wire 5 is connected to each other by a connecting piece 11.

Then, the ends of the electric wires 5 of the ribbon cable 12 are pressure-connected to the connectors 3, and the connecting pieces 11 of the ribbon cable 12 are ultrasonically welded to the connector housing 1 as shown by arrows in FIG. The connector housing 1 and each electric wire 5 are fusion-bonded and fixed here. In the drawings, the same structures as those described above are designated by the same reference numerals, and the description thereof will be omitted.

7 and 8 show an embodiment of the second invention, for example, a plurality of connector housings 1 on a drawing board.
Are appropriately arranged, and then the electric wires 5 are sequentially wired by an automatic machine. That is, one end of the wiring 5 is pressure-contacted to the connector 3 housed and held in one connector housing 1,
After cutting the electric wire 5 into a predetermined length, the other end of the electric wire 5 is pressure-connected to the connector 3 housed and held in another connector housing 1. This work is repeated to complete the wiring.

After that, the insulating sheet 14 coated with the adhesive 9 as an adhesive sheet is placed on the terminal portion of each of the wired electric wires 5, and the insulating sheet 14 is heated from the upper surface side by, for example, hot air or a heat press, and the insulating sheet 14 is heated. The respective electric wires 5, the insulating sheet 14 and the connector housing 1 are adhered to each other to obtain a pressure contact connector in which the end portions of the electric wires 5 and the connector housing 1 are adhered and fixed to each other. The insulating sheet 14 may be made of PET (polyethylene terephthalate), PVC (polyvinyl chloride), PI (polyimide), or the like. Further, in the figure, the same structures as those described above are designated by the same reference numerals, and the description thereof will be omitted.

In the above embodiment, the insulating sheet 14 coated with the adhesive 9 is used as the adhesive sheet, but the adhesive sheet itself may be melted and fixed by adhesion.

[0025]

As described above, according to the first and second aspects of the present invention, since the electric wire terminal portion extended from the connector and the connector housing are fixed by adhesion or fusion, the electric wire is fixed. The terminal part and the connector housing are integrated, a firm holding force can be secured, and the action of external force on the pressure-welded connection part between the wire terminal part and the connector can be prevented,
It is possible to effectively prevent disconnection of the connector and the electric wire terminal portion. Further, the electric wire terminal portion does not need to be bent and arranged, and the pressure contact connector can be made compact, and there is an advantage that it can easily cope with electric wires having different electric wire outer diameters.

[Brief description of drawings]

FIG. 1 is a perspective view of essential parts showing a first embodiment of the first invention.

FIG. 2 is a sectional view taken along the line II-II of FIG.

FIG. 3 is a main part perspective view showing a second embodiment of the first invention.

4 is a sectional view taken along the line IV-IV of FIG.

FIG. 5 is a perspective view of a main part showing a third embodiment of the first invention.

6 is a sectional view taken along the line VI-VI of FIG.

FIG. 7 is a perspective view of an essential part showing an embodiment of the second invention.

8 is a sectional view taken along the line VIII-VIII of FIG.

[Explanation of Codes] 1 Connector housing 3 Connector 5 Electric wire 9 Adhesive 14 Insulation sheet

Claims (2)

[Claims] 1. A press-connecting connector in which a core portion of an electric wire terminal portion is press-contacted and connected to a connector, and the connector is housed and held in a connector housing, wherein an electric wire terminal portion extending from the connector is provided. A terminal processing structure for a pressure contact connector, which is bonded or fused and fixed to a connector housing. 2. A pressure contact connector in which a core portion of an electric wire terminal portion is pressure-contact connected to a connector, and the connector is accommodated and held in a connector housing, the electric wire terminal portion extending from the connector. A terminal processing structure for a press-connecting connector, wherein the connector housing and the connector housing are bonded and fixed to each other using an adhesive sheet.