JPH0736341B2 - Double-sided contact type connector - Google Patents

Description

Detailed Description of the Invention

[0001]

The present invention relates to a first connected component and a second connected component.
The present invention relates to a double-sided contact type connector including contacts that are interposed between connected parts and connected to each other.

[0002]

2. Description of the Related Art A contact provided in a double-sided contact type connector disclosed in Japanese Patent Laid-Open No. 2-247995 has an upper contact spring and a second connected component which come into contact with a first connected component formed by repeating U-shaped bending. A contact is shown having a lower contact spring in contact with. In the case of forming a double-sided contact type connector using the contact, first and second insulating substrates are prepared, and recesses having the same size and shape are formed in each of the first and second insulating substrates. By the superposition of the above, the both recesses communicate with each other to form a cavity for holding the contact. The contact is accommodated in the cavity, and the contact surfaces of the upper and lower contact springs are projected from the openings provided at the top and bottom of the cavity.
It is configured to make contact with the second contacted component.

[0003]

However, since the contacts in the above-mentioned double-sided contact type connector repeat the U-shaped bending to form the upper contact spring and the lower contact spring, the shape is complicated and the machining is troublesome, and the accuracy is high. In addition to the requirement for high bending technology, it has the drawback of high cost. Further, since this contact has a structure in which the U-shaped bending is repeated in multiple steps to form the upper and lower contact springs, there is a drawback in that the whole is bulky, and therefore, there is a problem that the double-sided contact type connector is bulky. Have

Further, the cavity for accommodating the contact formed by the superposition of the first and second insulating substrates is arranged so as to be separated from the cavity adjacent to each other, and the adjacent contact occupies the accommodation space. It has a limit to high density. Further, for example, for contact with a contact of a gold-plated IC as the first connecting component, the first contact spring is contacted with a small contact pressure, while as a second connected component, a contact of a solder-plated printed circuit board. For contact with the second contact spring, it is required to contact the second contact spring with a larger contact pressure, but it is difficult to adopt a contact mode in which the contact has a difference in the spring pressure. There is a problem that cannot be dealt with.

[0005]

SUMMARY OF THE INVENTION The present invention provides a double-sided contact type connector for solving the above-mentioned problems, and as a means therefor, it is interposed between a first connected component and a second connected component. And a contact having a first contact piece and a second contact piece, and first and second insulating substrates sandwiching the contact.
The insulating substrate is provided with a first through hole, the second insulating substrate is provided with a second through hole, and the first and second insulating substrates are overlapped with each other to sandwich the connecting portion of the first and second contact pieces. The tip ends of the first and second contact pieces project from the first and second through holes, respectively, and are brought into pressure contact with the first and second connected components.

In the present invention, the connecting portion of the contact is arranged so as to intervene between the first and second contact pieces of the adjacent contacts.

[0007]

According to the present invention, the connecting portion for connecting the first and second contact pieces of the contact is sandwiched between the first and second insulating substrates, and the first and second insulating substrates are held.
By making the first and second contact pieces project from the second through hole, the first and second contact pieces do not interfere with each other in pressure contact with the first and second connected components. A contact that can be elastically displaced and has the connecting portion firmly sandwiched by the superposition of the first and second insulating substrates eliminates the play and rattling of the first and second contact pieces, and effectively achieves the elastic displacement. Is.

Further, by interposing the connecting portion of the contacts between the first and second contact pieces of the adjacent contacts, it is possible to achieve high density of the contacts. Also, since the connecting portion of the first and second contact pieces is sandwiched between two insulating substrates and the contact pieces can be vertically directed to protrude from the through holes, the double-sided contact type connector can be made thin. The structure can be simplified.

[0009]

Embodiments of the present invention will be described below with reference to the drawings.

Reference numeral 1 denotes a contact made of a plate material. One end of the plate material forming the contact 1 is cut in opposite directions to form a first contact piece 2 and a second contact piece 3, and the other ends are first and second. The connecting portion 4 connects the base ends of the contact pieces 2 and 3. The tip of the first contact piece 2 is bent toward the connecting portion 4 and the outer surface 5a of the bent portion 5 is used as a contact surface that comes into pressure contact with the first connected component 6, for example, an IC. The second contact piece 3 has a tip surface 7 bent so as to face a second component 8 to be connected, for example, a printed circuit board, and the tip surface 7 serves as a contact surface which comes into pressure contact with the second component 8. To do. For example, the first that comes into pressure contact with the IC
The contact piece 2 comes into contact with the outer surface 5a of the tip bent portion without damaging the gold plating applied to the contact of the IC, and the second contact piece 3 which makes pressure contact with the printed circuit board has the tip surface 7. Then, make contact with the solder plating applied to the contacts of the printed circuit board. In this case, the tip of the first contact piece 2 is plated with gold, and the tip of the second contact piece 3 is plated with solder.

As shown in FIGS. 2A and 2B, the second contact piece 3 is made wider than the first contact piece 2 so that the spring constant of the second contact piece 3 is set to a large value. According to the above, for example, when the first contact piece 2 comes into pressure contact with the IC, the outer surface 5a of the bent portion comes into contact with the contact of the gold-plated IC with a small contact pressure, and the second contact piece 3 has the print. When it comes into pressure contact with the substrate, the front end surface 7 comes into contact with the contact point of the printed circuit board plated with solder with a large contact pressure. Further, the slit portion 9 of the contact 1 is shear-cut into slit first and second slits.
The contact pieces 2 and 3 are formed so that the cut-out shear planes are in the same plane. Further, the slit 9 is cut into slits so that the first and second contact pieces 2 and 3 extend through the slits.

The contact 1 is held in the main body of the connector, and as shown in FIGS. 3A and 3B, the first contact piece 2 is pressed in the direction of arrow A so that the spring constant of the first contact piece 2 itself holds. , The first connected component 6 can be contacted. Similarly, by pressing the second contact piece 3 in the arrow B direction, the second contact piece 3 can be brought into contact with the second connecting component 8 by the spring constant of the second contact piece 3 itself. As a result, it is possible to make a contact with a difference in contact pressure, and it is possible to adopt a contact structure in which both contact pieces 2 and 3 do not interfere with each other.

As shown in FIGS. 4 and 5, the main body of the connector is as follows.
It has a first insulating substrate 10 and a second insulating substrate 11 which are overlapped with each other and sandwich the connecting portion 4 of the contact 1, and the outer surface of the bent portion of the first contact piece 2 of the contact 1 is provided on the first insulating substrate 10. The first through hole 13 through which 5a projects is formed, and the second insulating substrate 1
A second through hole 14 through which the tip surface 7 of the second contact piece 3 of the contact 1 projects is formed in the first portion 1. The first and second through holes 13,
Numeral 14 is formed at a position shifted in phase from each other so as to correspond to the first and second contact pieces 2 and 3. Further, the second insulating substrate 1
The inner surface 15 of the first insulating substrate 10 or the inner surface 17 of the first insulating substrate 10 is formed with a recess 16 into which the connecting portion 4 of the contact 1 is fitted;
By superposing the two insulating substrates 10 and 11, the inner surface 17 of the first insulating substrate 10 or the inner surface 15 of the second insulating substrate 11 sandwiches the connecting portion 4 fitted in the recess 16 to hold the contact 1. , The first contact piece 2 of the contact 1
The outer surface 5a of the bent portion of the second contact piece 3 is projected from the first through hole 13 to be brought into contact with the first connected component 6, and the tip surface 7 of the second contact piece 3 is projected from the second through hole 14 to form the second connected portion It is used for contact with the component 8.

FIGS. 6 and 7 show an example of arrangement of the contacts 1. As described above, the connecting portion 4 of the contact 1 is sandwiched between the first and second insulating substrates 10 and 11, and the contact 1 adjacent to the expanding portion 18 of the first and second contact pieces 2 and 3 extending from the sandwiching portion. By intervening the connecting portion 4'of ', the contact 1
Similarly, the connecting portion 4'of the first 'and the second insulating substrate 10, 11
Sandwich with.

[0015]

As described above, the contact having the first and second contact pieces and the connecting portion can be easily processed by forming one end of the plate material by cutting the plate material up and down, and a small bulky contact can be formed. Therefore, the double-sided contact type connector can be downsized. Further, the contact and the connector can be manufactured at low cost. Further, the spring constant of the second contact piece can be set freely than the first contact piece directed to the upper and lower through holes. For example, by setting one spring constant to a large value, the contact surface of the first connected component can be set. It is possible to adopt a contact form in which the contact pressure with respect to the second connected component is small and the contact pressure with respect to the contact surface of the second connected component is large, and the contact is achieved with a contact pressure suitable for each. Therefore, it is possible to solve the problem that it is difficult to make a difference in spring pressure of the contact as in the conventional art.

According to the present invention, the connecting portions for connecting the first and second contact pieces of the contact are provided with the first and second connection members while achieving the above-described effects.
By sandwiching the insulating substrate and projecting the tips of the first and second contact pieces from the first and second through holes, respectively, the first and second connected components are pressed to contact with each other. The two contact pieces can be elastically displaced without interfering with each other, and the contact in which the connecting portion is firmly held by the superposition of the first and second insulating substrates eliminates the play and rattling of the first and second contact pieces. The elastic displacement can be effectively induced, and proper pressure contact is achieved. Further, the contact density can be increased by interposing the connecting portion of the contacts between the contact pieces of the adjacent contacts.

[Brief description of drawings]

FIG. 1 is a perspective view of contacts constituting a double-sided contact type connector showing an embodiment of the present invention.

FIG. 2A is a plan view of the contact.

FIG. 2B is a contact plan view showing another example of the present invention.

FIG. 3A is a cross-sectional view of a main part of a front view of a state in which the contact shown in FIG. 2A is sandwiched between first and second insulating substrates.

FIG. 3B is a cross-sectional view of a main part of a front view of a state in which the contact shown in FIG. 2B is sandwiched between first and second insulating substrates.

FIG. 4 is a cross-sectional view of an essential part showing a state before sandwiching a contact in which first and second insulating substrates are superposed.

FIG. 5A is a perspective view of a main part of the first insulating substrate as viewed from the inner surface side.

FIG. 5B is a perspective view of a main part of the second insulating substrate as viewed from the inner surface side.

FIG. 6 is a cross-sectional view of a main part of a side view of a state in which the contacts shown in FIGS. 2A and 2B are sandwiched between first and second insulating substrates.

7 is a plan view of relevant parts in the state of FIG.

[Explanation of symbols]

 1 Contact 2 1st contact piece 3 2nd contact piece 4 Connection part 10 1st insulating substrate 11 2nd insulating substrate 13 1st penetration hole 14 2nd penetration hole 16 Recess

Claims (2)

[Claims] 1. A connector provided with contacts, which are interposed between a first connected component and a second connected component and are in pressure contact with each other, wherein the contact has a first contact piece and a second contact piece at one end. And a first and a second insulating substrate having a connecting portion for connecting the base ends of the first and second contact pieces at the other end and sandwiching the connecting portion of the contact by being overlapped with each other. The first insulating substrate has a first through hole from which the tip of the first contact piece projects, and the second insulating substrate has a second through hole from which the tip of the second contact piece projects. A double-sided contact type connector in which tips of the first and second contact pieces protruding from the second through hole are in pressure contact with the first and second connected components, respectively. 2. The double-sided contact type connector according to claim 1, wherein the connecting portion of the contacts is arranged so as to intervene between the first and second contact pieces of the adjacent contacts.