JPH0142942Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a connector for electrically connecting flexible printed circuit boards or jumper lead wires equipped with foil-like conductors.

Conventionally, as shown in FIG. 1, this type of connector includes an insulator 10, a rotary operating lever 20, and a contact 30, and is connected to a flexible printed circuit board 40.

The insulator 10 has a substantially rectangular parallelepiped shape and is attached to a substrate (not shown), with a plurality of contact insertion holes provided in a direction perpendicular to the substrate, and a hole of a predetermined depth adjacent to each contact insertion hole. The rotation operating lever 20 has a rod-shaped main body 204, and a pivot portion 201 and an operating portion 202 are integrally formed at both ends thereof, and an insertion piece 205 is integrally provided on the main body 204. The contacts 30 are located in the contact insertion holes of the insulator 10, and are electrically connected to external circuits, and have spring contact portions facing the holes. The flexible printed circuit board 40 is inserted between the spring contact portion of the contact 30 and the hole of the insulator, and the contact pressure generated between the insertion piece 205 of the rotation operation lever 20 and the spring contact portion causes electricity to be applied to the contact. connected.

The connector with this configuration is the rotary operation lever 2.
0 is pivoted to the insulator 10, and the end of the conductor foil exposed from the insulation coating of the flexible printed circuit board 40 is inserted between the spring contact part of the contact 30 and the hole to rotate the rotation operation lever 20. The flexible printed circuit board 40 is pressed against the contacts 30 and held in contact with the contacts 30 by engaging the hooks 203 with the engaging recesses of the insulator and fitting the insertion pieces 205 into the holes of the insulator.

This type of connector is only pressed by the insertion piece 205 of the rotation operation lever 20 as described above, so the inserted flexible printed circuit board 4
There is a drawback that if tensile force or vibration is applied to the 0 from the outside, the contacts may shift or come off. Further, when the flexible printed circuit board 40 is inserted, the end of the conductor foil of the printed circuit board 40 is rubbed by the rotary operation lever 205, so the end of the conductor foil is easily damaged, which is a serious problem especially when the conductor foil is made of a soft material. .

In view of the above, the present invention prevents the contact between the conductor of the printed circuit board and the spring contact part of the contact from easily shifting or coming off even when an external force is applied to the flexible printed circuit board, and the conductor foil of the printed circuit board is soft. It is an object of the present invention to provide a connector whose ends are not likely to be damaged.

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

2 to 5 show an embodiment of the connector according to the present invention. The connector according to the present invention is composed of an insulator 1, a sliding member 2, and contacts 3.

As shown in FIG. 2, the insulator 1 has a substantially rectangular parallelepiped shape and is integrally molded from plastic material. The front end is a shelf-shaped accommodating base 11 for accommodating the sliding member 2 and has a stopper 12. The sliding member 2 is inserted into the accommodating base 11 together with a flexible printed circuit board 4 (hereinafter referred to as a board) which is a fitting object. A plurality of contacts 3 are fixed at regular intervals perpendicular to the longitudinal direction of the insulator 1, and a protrusion 14 is provided approximately at the center of the end of the cover 13. Furthermore, protrusions 15 are provided on both sides of the accommodating table 11, and the sliding member 2 is slidably fitted onto the protrusions 15.

The sliding member 2 is integrally molded from nylon 66, has approximately the same length as the insulator 1 as shown in FIG. The protrusions 1 of the insulator are inserted into the mounting grooves 22a and 22b provided at the bottom of the knob while being inserted onto the base 11.
5 and slidably fit into the insulator. The length of the mounting groove 22 is the same as the cam part 23 of the sliding member.
The length is determined according to the distance that the slider slides on the storage table 11. The cam portion 23 is a band-shaped body connecting the knobs 21a and 21b, and is inserted into the insulator 1 and slides on the storage base 11, and has a step 24 in the middle as shown in FIG. A holding plate 26 having the same length as the cam 23 and a narrow width is provided on the upper part of the cam part 23, sandwiching the board insertion opening 25 between the knobs 21a and 21b. The holding plate 26 functions to hold the board between the cam portion and protect it from the influence of external force when the contacts and the ends of the conductor foil of the board come into electrical contact (FIG. 5c). The two-dot chain line in FIG. 3 shows the state in which the presser plate 26 is bent by the protrusion 14 of the insulator when the sliding member 2 is fitted into the insulator.

The contact 3 has an approximately U-shaped appearance as shown in FIG. 4, and is stamped and formed from an elastic metal material, preferably a phosphor bronze plate. The contact portion 31 has an arcuate shape and is continuous with a substantially horizontal support portion 32 and a bent portion 33, and the contact point 31a is formed to be offset in the direction of the arrow. The locking portion 34 is a projection that locks into the insertion hole of the insulator and fixes the contact to the insulator. The leg portions 35 extend downward substantially vertically, and are fixed to another board (not shown) or the like after the contact is mounted on the insulator.

FIG. 5 shows the order of fitting the connector and the board according to the present invention. The contact 3 is inserted into the insertion hole 31 of the insulator and onto the accommodating base 11 with the leg part 35 extending straight, and the locking protrusion 34 is locked and fixed to the inner wall of the insertion hole, and the leg part 35 is bent vertically. As mentioned above, the contact portion 31 of the contact
The position of the contact 31a is biased in the direction approaching the leg 35, and as shown in FIG. In the mounted state, the contact 31a is strongly urged downward by elastic force.

To fit the board 4, use the mounting groove 2 of the sliding member 2.
2 to fit the protrusions 15 on both sides of the insulator to complete the assembly, and then pull out the sliding member 2 in the direction away from the contact 3 as shown in FIG. The board is placed on the mounting portion 23a, and the holding plate 26 is removed from the insulator to open the board insertion port 25. When the board 4 is inserted through the insertion opening 25 and the tip of the conductor foil end 41 contacts the step 24, the sliding member 2 is pushed in, and as shown in FIG. 14, and the substrate 4 is held between the cam portion 23 and the cam portion 23. Further, the end portion 23b of the cam portion is connected to the stopper 12 of the storage base.
When the sliding member is pushed in until it comes into contact with the contact 31a, the contact point 31a of the contact slides down the step 24 from the mounting portion 23a and comes into contact with the conductor foil end 41. In this state as shown in FIG. 5c, the board is in complete electrical contact with the contacts and at the same time is securely held in the connector.

Opening/closing of this contact requires only a small amount of cam protrusion since the point of action of the cam part is the contact part of the contact, and since the support part 32 of the contact is made long, it can be easily operated with a small force. Furthermore, the contact points of the contacts have the effect of being wiped by the surface of the cam portion each time they are opened and closed.

The feature of this invention is that the holding mechanism for the inserted board, which is the mating object, uses a sliding member, and the holding plate at the top of the insertion slot is a fixed beam at both ends, which is the cover of the insulator. The insertion opening is closed by being pushed by a protrusion provided at the center. In addition, in order to prevent the board from coming off the insertion slot during the insertion process of the sliding member, a holding plate holds the board first, and then the contact points of the contacts come into contact with the ends of the conductor foil of the object to be mated. .

As described above, in the connector according to the present invention, a plurality of contacts each having a contact point at the free end and a long support portion are fixed to an insulator, and a board is held between the contacts by closing the insertion opening, and the contacts of the contacts are fixed to the insulator. Since the sliding member equipped with a cam portion to be placed is slidably fitted, the inserted object to be fitted is in electrical contact with the contact and is also held in areas other than the contact portion, so that external forces such as tensile force and vibration are not applied. It is extremely reliable and does not easily come off. Further, since the point of action of the cam part is the contact part of the contact, the contact is wiped every time it is opened and closed, and the contact is kept clean.

Although the present invention has been described above using a specific embodiment, it is obvious that the present invention is not limited thereto and includes various design modifications within the scope of the present invention.

[Brief explanation of the drawing]

Figures 1a and 1b are perspective views and operation explanatory diagrams showing conventional connectors, Figure 2 and the following diagrams show an embodiment of the connector of the present invention, and Figure 2a shows a sliding member assembled into an insulator and a board attached to it. Fig. 2b is a perspective view of a part of the insulator, Fig. 3 is a perspective view of the sliding member, and Fig. 4 is a perspective view of the contact. ,
Figure 5 is a cross-sectional view showing the connection process between the board and the connector of the present invention, in which a is before the board is inserted, b is when the board is inserted and held by the sliding member, and c is when the sliding member is completely pushed in. This shows a state in which electrical contact is made between the contact and the substrate. 1...Insulator, 11...Accommodation stand, 2...
...Sliding member, 23...Cam part, 26...Press plate,
3...Contact, 31a...Contact, 4...Fitting object.

Claims (1)

[Scope of utility model registration request] A cover 13 provided with a protrusion 14 protruding inwardly at the middle part in the parallel direction of the contacts on one side.
The insulator 1 stores and holds the contacts 3 by arranging the contacts 31 of the contacts 3 in a space between the housing base 11 formed opposite to the cover 13, and the insulator 1 is inserted into and removed from the space. A cam part 23 is inserted movably in the direction, and has a contact placement part 23a protruding toward the cover 13 on the insertion tip side, and a plate-shaped holding plate 26 facing the cam part with a gap. It consists of a sliding member 2 fixed at both ends in the direction in which the contacts are arranged side by side, and when an object to be fitted is inserted between the cam portion 23 of the sliding member 2 and the holding plate 26, and the sliding member 2 is pushed into the insulator. , the contact point 31 of the contact 3 makes electrical contact with the conductor of the object to be fitted, and the holding plate 26 is pressed by the protrusion 14 to push the object to be fitted into the cam portion 23.
A connector characterized by being held between.