JPH0713903B2 - connector - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Outline] The present invention relates to a connector in which a contacted body for double-sided contact is electrically connected with no insertion force, and the connector is rotatable including an insulator for fixing a contact terminal and an insertion port. In this configuration, the contacted body is inserted into the insertion port and then rotated to rotate the rotating insulator to elastically deform the contact terminal to enable double-sided contact.

[Industrial application field]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connector for double-sided contact, for example, a contact plug portion (edge portion) of a printed circuit board, which is inserted with no insertion force.

With the increase in density and multipole of contact terminals, a non-insertion force type connector with zero insertion force has been proposed and put into practical use.
Its usage tends to increase more and more.

[Problems to be Solved by Prior Art and Invention]

As disclosed in JP-A-54-137664, JP-A-54-137662, JP-A-54-137663, etc., a conventional connector of this type is a cam for elastically deforming a contact terminal. This is a structure in which a moving body and a moving body are incorporated into the insulator, and the number of parts is large, and the assembly is complicated and expensive.

Further, in the conventional connector, since the contact part of the contact terminal is merely pressed against the contact part of the contacted body and hardly makes sliding contact, the wiping effect of the contact is small, and there is a large risk that dust or the like will intervene or adhere between the contact parts. There was a problem such as contact failure.

[Means for solving problems]

In order to solve the above-mentioned conventional problems, the present invention has a plurality of contact terminals each having a connecting portion at a tip portion, a fixing portion at an intermediate portion, and a terminal portion at a rear end portion; To do
A fixed insulator having the contact portion and the terminal portion led out and the fixed portion fixedly attached, and an insertion opening into which the contact insertion portion of the contacted body is inserted, and the fixed insulator is rotatable around the contact portion. And a guide means for guiding the contacted body that rotates in conjunction with the rotation of the rotary insulator. It is provided so as to be located above and below the insertion opening so as to come into contact with the front and back surfaces of the contact insertion portion, respectively, and the upper and lower contact portions are displaced in the direction along the insertion direction of the contacted body, The contact portion on one side is arranged so as to be able to come into contact with one surface of the contact insertion portion at a distant position, and the contact portion on the other side is arranged so that it can come into contact with the other surface of the contact insertion portion at a position in the vicinity thereof. The insulator is the state before the contacted body is inserted. The insertion opening faces in the tilt direction, and the contact insertion portion inserted obliquely is held so as to be guided between the contact portions through the insertion opening, and the contacted body is inserted with the guide means as a guide. When the rotary insulator is displaced in the horizontal direction by performing one rotation operation, the contact portion is elastically deformed, and the contact insertion portion is held at a desired contact pressure to achieve electrical connection. To provide a connector.

[Action]

In the connector of the present invention described above, since a contact is made by utilizing a series of insertion / attachment operations (insertion / rotation operation) of the contacted body, the structure of the connector itself is a simple structure such as rotatable attachment of the rotary insulator. It's done. Further, the contact is performed while the contacted body elastically deforms the contact terminal, so that a sliding contact is obtained.

Further, since the connector of the present invention is provided with the guide means for the contacted body, the insertion operation of the contacted body can be performed stably.

〔Example〕

 Hereinafter, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is an external perspective view of a connector of the present invention according to an embodiment, and FIGS. 2 (A) and 2 (B) are transverse sectional views for explaining the operation of the connector of FIG. 3) is a contact state, and FIG. 3 is a transverse cross-sectional view showing a holding state of the rotary insulator in the connector of FIG.

In these figures, 1 is a rotary insulator made of an insulating resin molded body, 10 is a fixed insulating body made of an insulating resin molded body, and 20 and 30 are punched and bent from a conductive spring metal plate such as phosphor bronze. 40 is a contact terminal, 40 is a plug portion of a printed circuit board on which an electronic component which is a contacted object is mounted, 50 is a holding spring made of the same material as the contact terminals 20 and 30, 60 is a guide means, and 70 is a fixing portion.

The rotary insulator 1 is provided with an elongated vertical insertion hole 2 formed in the center thereof, and a plurality of opposing walls 3 are integrally formed so as to sandwich the insertion hole 2 and the space between the opposing walls 3 is formed. It is the contact part accommodation space 4. In addition, a plurality of comb-shaped projections 5 are integrally formed on the bottom surface of the rotary insulator 1, and the projections 5 serve as a guide function for the rotating operation of the insulator 1. Further, a support wall 6 is integrally formed in the contact portion accommodation space 4'on both sides as shown in FIG.
The tip of the holding spring 50 abuts on the support wall 6.

The fixed insulator 10 has a substantially U shape, and the rotating insulator 1 is rotated between the opposing side walls 11 by a shaft 12 (one shaft 12 is shown in FIG. 1 and is shown by an X mark in FIG. 2). Mounted freely. A plurality of comb-shaped grooves 14 with which the protrusions 5 engage are formed on the upper surface of the bottom plate 13 of the fixed insulator 10.

The contact terminals 20 and 30 have contact portions 21 and 31 at their tips, fixed portions 22 and 32 at their intermediate portions, and terminal portions 23 and 33 at their rear ends, so that the fixed portions 22 and 32 are parallel to each other. The bottom plate 13 is fixed in two rows. The contact parts 21 and 31 and the terminal parts 23 and 33 are the bottom plate 13
, And the terminal portions 23, 33 are bent at right angles in one direction so as to form a right angle type connector.

Further, the contact portions 21 and 31 are bent inward with respect to each other, and their tip portions are bent outward in consideration of insertability.
Further, the contact portions 21 and 31 are displaced from each other, and the contact point 24 of the contact portion 21 on one side is located farther from the insertion end of the printed circuit board 40 so that the contact pattern is formed on one surface of the printed circuit board 40 (Fig. Contact point 34 of the contact portion 31 on the other side can contact a contact pattern (not shown) formed on the other surface of the printed circuit board 40 in the vicinity of the insertion end of the printed circuit board 40. Has become.

However, due to the escape groove 15 of the bottom plate 13, the fixed position of the fixed portion 32 is displaced from the fixed position of the fixed portion 22, and as a result, the derived lengths of the contact portions 21 and 31 are made substantially equal, and the stiffnesses of both are the same. Is formed.

The guide means 60 is composed of a guide plate 61 that is integrally molded and formed on the outside of the rotary insulator 1 and is led out.

The guide plate 61 has guide walls 62 formed on both sides thereof, and its front end is open. The guide plate 61 has an engaging hole 63 on the lower surface of the front end.
The projection 64 having the above is integrally formed.

The fixed portion 70 is, for example, a board main body to which the connector is attached, and has a slide pin 72 urged by a coil spring 71 in the front portion thereof. An engaging projection 73 is formed on the tip of the slide pin 72.

In the assembly of this connector, first, the rotary insulator 1 is placed in the accommodating space 4 so that the contact portions 21 and 31 are located in the accommodating space 4, and the holding spring 50 is located in the accommodating space 4 '.
It is installed between 11 and is rotatably attached to the fixed insulator 10 by the shaft 12.

Then, in this assembled state, as shown in FIG. 2 (A), the rotary insulator 1 is held so that the insertion port 2 thereof is oriented in the inclination direction, and the guide plate 61 is also inclined. In this holding state, as shown in FIG. 3, since the contact position of the holding spring 50 on the support wall 6 is deviated from the shaft 12 toward the fixed insulator 10, the elastic force of the holding spring 50 causes the rotary insulator 1 to move. Is rotated, and the rotary insulator 1 and the fixed insulator 10 are in contact with each other at a point a on the opposing surface thereof. In addition, the guide plate 61 and the fixed part
The restoring force of the rotary insulator 1 is reinforced by the coil spring 65 interposed between the 70.

Further, in this state, the contact portions 21 and 31 have their contact points 24
And 34 are located at equal distances on both sides of the axis 12 and the contact points 24 and 34 are located above and below the insertion opening 2.

Next, the connecting operation of this connector will be described with reference to FIGS.

The state before insertion of the printed circuit board 40 is shown in FIG. 2 (A), and from this state, the plug portion of the printed circuit board 40 is obliquely inserted into the insertion port 2 using the guide plate 61 as a guide. In this insertion operation, the printed circuit board 40 does not contact the contact portions 21 and 31, and the zero insertion force is achieved.

Further, when the printed circuit board 40 is rotated in the arrow b direction from this inserted state, the rotary insulator 1 and the guide plate 61 rotate in the arrow b direction, and the contact portion 21 moves downward. 31 is elastically deformed upward respectively.

At this time, the contact points 24 and 34 come into contact with each other while sliding on the contact pattern of the printed circuit board 40, and the rotary insulator 1 rotates with respect to the fixed insulator 10 while being guided by the engagement of the protrusion 5 and the groove 14. .

Then, as shown in FIG. 2 (B), the opposing surfaces of the two insulators 1 and 10 come into contact with each other, whereby the rotation of the rotary insulator 1 is stopped,
The printed circuit board 40 is positioned horizontally. In this horizontal state, the contact portions 21 and 31 undergo the maximum elastic deformation, thereby holding the printed circuit board 40 with a desired contact pressure and achieving electrical connection. Further, at this time, the holes 63 and the protrusions 73 engage with each other, and the horizontal state of the printed circuit board 40 is maintained.

When returning from this electrical connection state to the pre-insertion state of FIG. 2 (A), the slide pin 72 of FIG. 2 (B) is disengaged from the push-in hole 63 and the projection 73 to remove the contact portion. Due to the elastic force of 21 and 31, and the holding springs 50 and 65, the printed circuit board 50
Is returned to the inserted state, and the printed circuit board 50 can be removed.

〔The invention's effect〕

As described above, since the connector according to the present invention has a structure for obtaining an electrical connection by using the inserting operation of the contacted body, the structure of the zero insertion force connector can be simplified and an inexpensive connector can be provided. It was

Further, in the present connector, even though the zero insertion force is formed, the contact can be a sliding contact, a sufficiently large wiping effect is exhibited, and highly reliable electrical connection can be realized.

Further, since this connector is provided with the guide means for guiding the insertion of the contacted body, the insertion operation is stable and reliable insertion and electrical connection are possible, and the practical effects thereof are remarkable. .

[Explanation of symbols]

1 ... Rotary insulator, 2 ... Insertion port, 10 ... Fixed insulator,
20,30 ...... Contact terminal, 21,31 ...... Contact part, 22,32 ...... Fixed part, 23,33 ...... Terminal part, 40 ...... Contacted object, 50 ...... Holding spring, 60 ...... Guide means , 61 …… Guide plate, 70 …… Fixed part.

Claims (8)

[Claims] 1. A plurality of contact terminals each having a contact portion at a front end portion, a fixed portion at an intermediate portion, and a terminal portion at a rear end portion, and the contact terminals are located at least in two rows, upper and lower rows.
A fixed insulator having the contact portion and the terminal portion led out and the fixed portion fixedly attached, and an insertion opening into which the contact insertion portion of the contacted body is inserted, and the fixed insulator is rotatable around the contact portion. And a guide means for guiding the contacted body that rotates in conjunction with the rotation of the rotary insulator. It is provided so as to be located above and below the insertion opening so as to come into contact with the front and back surfaces of the contact insertion portion, respectively, and the upper and lower contact portions are displaced in the direction along the insertion direction of the contacted body, The contact portion on one side is arranged so as to be able to come into contact with one surface of the contact insertion portion at a distant position, and the contact portion on the other side is arranged so that it can come into contact with the other surface of the contact insertion portion at a position in the vicinity thereof. The insulator is the state before the contacted body is inserted. The insertion opening faces in the tilt direction, and the contact insertion portion inserted obliquely is held so as to be guided between the contact portions through the insertion opening, and the contacted body is inserted with the guide means as a guide. When the rotary insulator is displaced in the horizontal direction by performing one rotation operation, the contact portion is elastically deformed, and the contact insertion portion is held at a desired contact pressure to achieve electrical connection. Connector. 2. The contact part is held in a non-contact state with the contact insert part when the contact insert part is inserted, and holds the contact insert part while sliding on the contact insert part when elastically deforming. The connector according to claim 1, characterized in that 3. The connector according to claim 1, wherein the guide means comprises a guide plate integrally led out from the rotary insulator. 4. The guide plate is provided with a locking means at an outer end thereof, and when the contacted body is displaced in the horizontal direction, the locking means engages with a fixed portion to electrically connect the contacted body. The third aspect is characterized in that
Connector described in item. 5. The connector according to claim 1, wherein the fixed insulator is provided with locking means for holding the rotary insulator in a horizontal state. The connector according to claim 1, wherein the contacted body is a printed circuit board. 6. The connector according to claim 1, wherein the contact terminals arranged in two rows are both bent at right angles in one direction to form a right angle type connector. 7. The contact terminals of the two-row arrangement are characterized in that the fixing positions of the fixed insulators with respect to the fixing portions are displaced so that the lead-out lengths of the contact portions are equal to each other. The connector as set forth in claim 1. 8. The contact position between the contact part and the contact insertion part is characterized in that the far position and the near position are located at equal distances on both sides of the rotation center of the rotary insulator. The connector according to claim 1.