JPH0346778A - High density electric connector - Google Patents

Abstract

PURPOSE:To realize a high density of the contacts by lining up and forming plural contacts of small width at the projections, and contacting a fork terminal to these contacts to connect electrically. CONSTITUTION:Since contacts 4a and 4b with a small width W are formed at the incorporated projections in electric contact makers 1, the width of the contact makers 1 can be reduced up to the manufacture limit of the contacts 4a and 4b. On the other hand, a fork terminal 15 is contacted to the contacts 4a and 4b with its end surface in the thickness direction, and since its spring force can be regulated by the width W, a stable electric contact can be secured to the contacts 4a and 4b even though the plate thickness t is made thin, and the size in the lining-up direction can be reduced. Consequently, an electric connector 10 and a fork terminal connector 14 can be composed in a high density respectively.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an electrical connector used in electronic devices, and more particularly to a high-density electrical connector incorporating a large number of contacts.

[Conventional technology]

Conventionally, in this type of electrical connector, the contacts are made of a metallic springy material. In other words, in a male-male connector, a contact with a spring structure that can obtain contact force by applying a certain displacement to the female side is provided, and a rigid post pin is provided to displace the female contact to the male side. The structure is such that the post pin is fitted into the female contact and deformed by a spring, and the return force of the spring brings the female contact into contact with the post pin to establish an electrical connection.

[Problem to be solved by the invention]

The conventional electrical connector described above has a configuration in which the female side contacts are made of a metal spring material and are brought into contact with the male side pins using the spring force in the direction of the plate thickness. In order to increase the density by incorporating the contacts into a housing, it is necessary to reduce the width of each contact. When manufacturing this type of contact, it is necessary to change the plate thickness according to the width of the contact due to processing limitations, so it is necessary to reduce the plate thickness as well as reduce the width of the contact. is required.

Therefore, as the density of connectors increases, the thickness of the spring material becomes thinner, which causes a problem in that the spring force of the contacts decreases, making it impossible to obtain a stable connection. Additionally, due to the reduction in board thickness, there are restrictions on mounting, which necessitates the use of spring materials with irregular shapes, or the need to bend the spring material in a complicated manner and perform insert molding, which increases costs. There is also the issue of becoming.

It is an object of the present invention to provide a high density electrical connector which eliminates the above-mentioned problems.

(Means for Solving the Problems) The electrical connector of the present invention includes a protruding portion formed of an insulating material in a plate shape, and a plurality of arm portions protruding in a curved state from the rear end of the protruding portion. a plurality of narrow conductive contact portions formed on the upper and lower surfaces of the protruding portion at positions corresponding to each of the arm portions, and a conductive portion formed on the lower surface of the arm portion in succession to the contact portions; constitute an electrical contact.

Then, the electrical contacts are arranged in the connector housing at required intervals in the vertical direction, and the fork terminals provided on the fork terminal connector are fitted into the vertical intervals so as to be able to electrically contact the contact portions. It consists of

[Effect]

In this configuration, a plurality of narrow contact portions are formed in an array on the protruding portion, and the fork terminal is brought into contact with the contact portions to make an electrical connection, thereby achieving high density of the contact portions.

〔Example〕

Next, the present invention will be explained with reference to the drawings.

1 and 2 are a perspective view and a vertical sectional view of one embodiment of the present invention, and only the contacts are shown.

The electrical contact 1 is integrally formed of an insulating material such as resin, and has a protruding part 2 whose tip is made of a thin plate, and a plurality of arm parts 3 extending from the protruding part 2 toward the rear and lower side. There is. Narrow contact portions 4a and 4b are formed on the upper and lower surfaces of the protruding portion 2 at positions on the extension of the arm portion 3, respectively, to make electrical contact with fork-shaped contacts to be described later. Furthermore, a conductive portion 5 is formed on the lower side of the arm portion 3 and is continuous with the contact portion 4b on the lower side.

Note that the contact portions 4a, 4b and the conductive portion 5 are each 2
It is formed by providing a metal conductive film by overlapping formation, plating, or vapor deposition coating. In this case, it is preferable that noble metal be provided on the surfaces of the contact parts 4a and 4b in order to improve contact reliability. Further, the tip of the conductive part 5 is connected to a printed board 7, which will be described later.
The zero land 8 and the solder joint are configured as a solder joint 6 to be connected.

Note that when forming the contact portions 4a, 4b and the conductive portion 5, the width W thereof can be made very thin with high precision by forming them by chemical treatment. Further, by integrally forming the protruding portion 2 and the arm portion 3, the accuracy can be increased.

3 and 4 are an embodiment of an electrical connector constructed using the electrical contact 1 shown in FIGS. 1 and 2, and a longitudinal sectional view thereof. The electrical connector 10 has a plurality of (three in this case) electrical contacts 1 stacked at the rear end of the protruding part 2 with an insulator 12 in between, and is fixed to a housing 11 having a mounting part 13 for mounting on the print temporary 7. ing.

At this time, the vertical intervals of each electric contact 1 are made equal.

Further, it is preferable that the length and protrusion direction of the arm 3 be different between the upper and lower electric contacts 1 so that the tip of the arm portion 3 of each electric contact 1 is located on a substantially concave plane.

On the other hand, as shown in FIG. 3, a fork terminal connector 14 is fitted to the connector 10 and electrically connected to each other. The fork terminal connector 14 has a narrow fork terminal 15 with a slit 15a formed from its tip, and the fork terminal 15 is connected to the contact portions 4a and 4b of the electrical contact l.
They are arranged in parallel at positions corresponding to , and are fixedly supported within the housing 16 using an insulating material. Further, in a part thereof, an insertion hole 1 for guiding the electrical contact I of the electrical connector 10 is provided.
7.

According to this configuration, by fitting the electrical contact 1 of the electrical connector 10 into the fork terminal connector 14 along the insertion hole I7, the fork terminal 15 comes into contact with the contact portions 4a and 4b of the electrical contact 1, Electrical connections are made.

In this case, in the electric contact l, since the contact parts 4a and 4b of narrow width W are formed on the integrally molded protrusion part 2,
The width of the contact portions 4a, 4b can be reduced to the manufacturing limit. On the other hand, the fork terminal 15 has a contact portion 4a at its end surface in the thickness direction.

4b, and its spring force can be adjusted by adjusting the width W, so even if the plate thickness is made thinner, the contact portion 4a remains the same.

4b, stable electrical contact can be ensured, and the dimension in the arrangement direction can be reduced. This allows electrical connector 1
0 and the fork terminal connector 14 can be configured with high density.

[Effects of the Invention] As explained above, the present invention forms a plurality of narrow conductive contact portions on a protrusion made of an insulating material in correspondence with a plurality of arm portions protruding from the protrusion, The fork terminal provided on the fork terminal connector is inserted into this contact part so that electrical contact can be made, so there are problems such as reducing the spring force and not being able to obtain a stable connection, and problems due to the plate thickness. It is possible to increase the density of the contact area without causing problems such as the need for complicated bending of the spring material and insert molding due to the reduction, and this has the effect of making it possible to construct a high-density electrical connector. .

[Brief explanation of drawings]

FIG. 1 is a partially cutaway perspective view of an electrical contact used in the electrical connector of the present invention, FIG. 2 is a sectional view of the electrical contact of FIG. 1,
3 is a partially cutaway perspective view of an electrical connector according to an embodiment of the present invention, and FIG. 4 is a sectional view of the electrical connector in FIG. 3. DESCRIPTION OF SYMBOLS 1... Electric contact, 2... Projection part, 3... Arm part, 4a, 4b... Contact part, 5... Conductive part, 6...
・Solder connection part, 7... Printed board, 8... Land,
10...Connector, 11...Housing, 12...
・Insulator, 13... Mounting part, 14... Fork terminal connector, 15... Fork terminal, 15a.
...Slit, 16...Housing, 17...Insertion hole. Figure 1 Figure 2

Claims (1)

[Claims] 1. A protrusion made of insulating material formed into a plate shape, and a plurality of arms protruding in a curved state from the rear end of the protrusion,
a plurality of narrow conductive contact portions formed on the upper and lower surfaces of the protruding portion at positions corresponding to each of the arm portions, and a conductive portion formed on the lower surface of the arm portion in succession to the contact portions; The electrical contacts are arranged in the connector housing at required intervals in the vertical direction,
A high-density electrical connector characterized by being configured such that a fork terminal provided on the fork terminal connector can be inserted into the vertical interval to electrically contact the contact portion.