JPH0729752U - Electrical connector - Google Patents

Abstract

(57) [Summary] (Modified) [Purpose] To provide an electrical connector having an electrical contact capable of inspecting the electrical connection between the electrical contact and the electric wire with the same inspection device as the lyse type electrical contact. [Constitution] Electric contact 1 used for electric connector
Includes a wire accommodating portion 4 for electrically contacting and supporting an electric wire, and a solder tine portion 3 which is inserted into an opening in a substrate and solder-joined to each other. An inspection connecting plate 8 is provided which stands at a right angle to 3. The inspection is performed by contacting the test surface 14 of the inspection contact plate 8 with a test pin and confirming continuity. A pair of columnar members 9 are provided behind the inspection contact plate 8. The upper surface of the columnar member 9 has an inclined surface 15 and is formed so as to be pressed into contact with the upper surface of the inner wall of the housing 2.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electrical connector, and more particularly to an electrical connector having a printed circuit board electrical contact inserted into an opening of the printed circuit board.

[0002]

[Prior art]

 As an example of a printed circuit board electrical contact currently on the market, an electric wire accommodating part and a solder tine part which is integrally formed with the electric wire accommodating part and is inserted and engaged in an opening of the printed circuit board to be soldered ( There is an electrical contact having an engaging part). As the two-piece structure of the tip of the solder tine part of this type of electrical contact, there is a structure in which a long plate and a short plate are bent and the tip of the long plate is closed inward, and two plates of the same scale are first. There are a structure in which the ends are brought into contact with each other, and a structure composed of a long plate and a short plate is formed so that the tip of the long plate is bent into a substantially V shape so as to substantially enclose the short plate.

A plurality of electric contacts of this type are housed in the same housing to form an electric connector. Although these electrical connectors are often used in the form of harnesses, the manufacture of harnesses is often done by automated manufacturing equipment.

[0004]

[Problems to be solved by the device]

 In order to increase the yield in the production of harnesses, an inspection process that confirms whether the electrical connection between terminals and wires is good is essential. Conventionally, in manufacturing a harness of a reset type electric contact (see FIG. 3), a test pin is inserted into a reset type electric contact 31 through an opening 32, and conduction is confirmed for inspection.

However, it is structurally impossible to conduct a continuity test on the electrical contact for a printed circuit board having the above-mentioned conventional solder tines with a test pin for a reset type electrical contact.

Therefore, an object of the present invention is to provide an electrical contact for a printed circuit board having an improved structure, which can be inspected by using the same inspection device as the lyse type electrical contact, that is, the same test pin, and a housing. Is to provide an electrical connector comprising.

[0007]

[Means for Solving the Problems]

 The present invention relates to an electric connector having an electric wire housing portion that is connected to an electric wire and supports the electric wire, an electric contact that includes a pair of plate-shaped engaging portions that elastically engage with an opening of a circuit board, and a housing. The contact plate extending from one edge of the pair of plate-like engaging portions toward the other is formed, and the housing has an opening accessible to the contact plate from the outside. And

The electrical contact for a printed circuit board used in the electrical connector of the present invention includes a wire housing for electrically contacting and supporting the electric wire, and a solder tine having a two-sheet structure inserted into the opening of the printed circuit board. And a contact plate for inspection, which is arranged so as to stand at a right angle from the root of the solder tines to the solder tines.

The inspection contact plate for the electrical contact for the printed circuit board used in the electrical connector of the present invention contacts the tip of the test pin brought closer from the engagement side of the electrical contact with the printed circuit board to electrically connect the printed circuit board. In order to obtain contact, they are arranged so as to face the engagement side and stand substantially at right angles to the solder tines. A pair of pillar-shaped members are formed behind the inspection contact plate as needed. At least one of the columnar members is formed with a support surface that is in contact with the inspection contact plate and supports the contact plate. The support surface prevents the test contact plate from bending when the test pin contacts the test contact plate. Furthermore, the upper surfaces of the pair of columnar members have slopes to allow the electrical contacts to be inserted into the housing at correct positions, and to prevent the solder tines of the electrical contacts from shaking during fixing. Further, the housing is formed so that the engagement surface side of the inspection contact plate can be opened so as to allow the insertion of the test pin.

[0010]

【Example】

 Hereinafter, embodiments of the electrical contact for a printed circuit board according to the present invention will be described with reference to the accompanying drawings.

An example of an electrical contact used in the present invention is shown in FIGS. 1 (A) and 1 (B). As shown in FIG. 1 (A), the electrical contact 1 includes an electric wire housing portion 4 for housing an insulated electric wire, and a solder tine portion (engaging portion) 3 which is inserted into an opening in a board and soldered. . The electric wire housing portion 4 includes an electric wire connecting portion 6 that is electrically connected to a conductor in the electric wire, and an electric wire supporting portion 7 that supports the electric wire. In the figure, the wire connecting portion 6 is composed of two pressing plates 5. The two insulation displacement plates 5 are arranged substantially parallel to each other and are arranged so as to have planes perpendicular to the longitudinal direction of the electrical contacts, and each insulation displacement plate 5 has an insulation displacement slot 13. Each pressure contact plate 5 is supported by a pressure contact plate support portion 11 formed so as to project from the side surface of the electrical contact 1. Further, the wire support portion 7 is made of a bendable metal plate. Further, the solder tines 3 inserted into the openings of the printed circuit board are composed of a two-layer structure of metal plates, and a long plate encloses a short plate. A substantially similar structure of the solder tine portion 3 of the electric contact 1 shown in this embodiment is described in Japanese Utility Model Publication No. 4-24613.

An inspection contact plate 8 is provided near the root of the solder tine portion 3. The inspection contact plate 8 is bent and formed from the side surface so that the inspection contact plate 8 is arranged so as to stand at a right angle to the longitudinal direction of the solder tines 3. The inspection of the electrical connection is performed by abutting the last pin on the inspection surface 14 of the inspection contact plate 8 and confirming the continuity. According to FIG. 1 (B), the test surface 14 of the test contact plate 8 that contacts the tip of the test pin is arranged to be located inside the housing 2 when the electrical contact 1 is housed inside the housing 2. To be done.

A columnar member 9 is provided behind the inspection contact plate 8. The upper surface of the columnar member 9 is formed to have a slope 15. The bevel 15 guides the electrical contact 1 when it is inserted into the housing 2. Further, when the electric contact 1 is fixed to the housing 2, the top of the inclined surface 15 is press-engaged with the upper surface of the inner wall of the housing to prevent the solder tines 3 from moving. In this embodiment, the boss 10 that contacts the side surface of the inner wall of the housing is formed on the side surface of the electrical contact 1 in order to minimize the displacement, and the lateral displacement of the electrical contact 1 is prevented.

The wire housing 4 is formed to house an insulated wire. The insulated wire is electrically pressure connected to the wire connection portion 6 composed of two pressure contact slots 5, and the insulated part of the wire is held by the wire support portion 7 from above to support the wire, thereby reducing stress. Make it work.

FIG. 2 shows a front view of the electric contact 1 fitted in the housing 2 as shown in FIG. 1B. The opening 12 of the housing is formed so as to penetrate the solder tine portion 3 of the electric contact 1, and further the inspection contact plate 8 is opened to the engagement surface. The test pin can reach into the housing 2 through the open opening and be brought into contact with the test contact plate 8. A columnar member 9 is located behind the inspection contact plate 8.

As described above, the structure for inspecting the electric connector of the present invention can be applied to other than the electric contact for the printed circuit board. Further, various modifications can be made by those skilled in the art without departing from the gist of the present invention.

For example, as a modification of the present invention, the contact portion of the electrical contact used in the present invention with the test pin has elasticity and extends inwardly from each of the pair of metal plates forming the solder tines. It may be a pair of contact plates. In this case, the test pin is elastically fitted between the metal plates and electrically contacted to conduct the continuity test.

[0018]

[Effect of device]

 By using the electrical connector of the present invention, the electrical connection can be inspected by also using the test pin corresponding to the conventional reset type electrical contact. As a result, the inspection can be performed quickly and effectively in the production of the harness including the electrical connector having the reset type electrical contacts. In addition, there is no need to replace the test pin, which is economically advantageous.

Further, according to the structure of the electric connector of the present invention, the electric contact disposed in the housing is prevented from being shaken in the vicinity of the engaging surface, and stable engagement is possible.

[Brief description of drawings]

FIG. 1A is a plan view of an electrical contact used in the electrical connector of the present invention. 1B is a side view of the electrical contact of FIG. (B) also shows a cross section of the housing in which the electrical contacts are arranged.

FIG. 2 is a front view of the electrical connector of the present invention.

FIG. 3 is a side view of a conventional reset type electric contact.
Figure 3 also shows a cross section of the housing in which the electrical contacts are located.

[Explanation of symbols]

 1 Electrical Connector 2 Housing 3 Engagement Part (Solder Tine Part) 4 Electric Wire Housing 8 Contact Plate 12 Opening

Claims (1)

[Scope of utility model registration request] 1. Electricity having an electric wire housing portion connected to an electric wire and supporting the electric wire, an electric contact including a pair of plate-shaped engaging portions elastically engaging with an opening of a circuit board, and a housing. In the connector, a contact plate extending from one of the end edges of the pair of plate-like engaging portions toward the other is formed, and the housing has an opening accessible to the contact plate from the outside. Electrical connector to.