JPH08111267A - Zif connector device - Google Patents

Abstract

PURPOSE: To provide a ZIF connector device which is easy to operate, presents a sufficient contacting force, and excels in the economy. CONSTITUTION: A resilient member 2 has a tip plate part 2a to be overlapped on one surface of the foremost part 1a of a conductive object 1 and a resilient plate part 2b, and a connector body is equipped with an insulator 7 and a conductive contact 8 held by the insulator 7. The insulator 7 is furnished with a groove 9 in which the foremost part 1a and the tip plate part 2a are inserted with no force required to push in, and the contact 8 is equipped with a contacting part 8a to be in contact and electric continuity with the conductor part 10 of the conductive object, 1 in at least one of differently deep positions in the groove 9.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention relates to an FPC (Flexib).
le Printed Circuit; Flexible Printed Circuit) and FFC (Flexib)
A flexible substrate such as a le flat cable (flexible flat cable) having a pattern of conductors (collectively referred to as conductive objects here) and an external electrical connector are connected to a ZIF (Zero).
The present invention relates to a ZIF connector that utilizes a lever boosting force to connect with an Insertion Force (no insertion force).

[0002]

2. Description of the Related Art As a conventional connector device, there is one in which a conductive object and a connector body are brought into contact with each other. In this connector device, a contact and a conductor portion of a conductive object are brought into contact with each other one to one. If one contact and one conductor are made into one pole, if the number of poles is small, ZI
The contacts and conductive objects can be easily inserted and removed without using the F connector method.

However, when the number of contacts and the number of conductors of the conductive object are large, the conductive object itself is flexible and the insertion / removal work may be difficult. The backing is reinforced by the reinforcing member only at the inserted portion of the conductive object to be inserted easily.

Further, in order to insert a conductive object having a large number of poles into the connector main body, it is usual to insert the conductive object into the connector main body by no insertion force by adopting the ZIF connector system.

In the ZIF connector, as shown in FIGS. 9 and 10, a conductive body 32 is inserted into a connector main body 31 mounted on a connection target substrate 30 by no insertion force and connected. The connector body 31 includes an insulator 33 and a conductive contact 34 held by the insulator 33.
And have.

The contact 34 includes a holding portion 34a held by the insulator 33, and a contact spring portion 34b extending from one side of the holding portion 34a and arranged in a large groove 33a formed on one surface of the insulator 33. , And a terminal portion 34c extending from the other side of the holding portion 34a to the outside of the insulator 33. The insulator 33 is provided with an insulating movable member 35 that can be inserted into and removed from the groove 33a.

Now, the tip of the conductive object 32 is inserted in the depth direction of the groove 33a. At this time, the conductive object 32 can be inserted into the groove 33a with no insertion force. After that, when the movable member 35 is inserted along one wall of the groove 33a, the contact spring portion 34
Since b is pushed toward the conductor portion 32a of the conductive object 32, the contact portion 34d of the contact spring portion 34b contacts the conductor portion 32a.

[0008]

However, in the connector device using the reinforcing member, it takes time and effort to attach the reinforcing member as a separate member to the conductive object, and the structure becomes complicated.

In the structure of the ZIF connector described above, it is necessary to move the movable member 35 up and down to insert and remove the conductive object 32 into the groove 33a. However, when the shape of the connector main body 31 is small, A large finger force is required to insert and remove the movable member 35, and the movable member 3 is moved by the finger.
Moving 5 is a difficult task.

Further, in a connector device having many poles, there is a demand for miniaturization of the connector body 31, and the contact 34 becomes smaller accordingly. Therefore, the contact 34 itself has sufficient contact force and sufficient elasticity. There is a problem in the structure such that the deformability cannot be obtained and the contact becomes poor.

Therefore, an object of the present invention is to provide a ZIF connector device which is easy to operate, has a sufficient contact force, and is economical.

[0012]

According to the present invention, there is provided an elastic member that fits at least the tip of a conductive object, and a connector body that receives the elastic member and holds the tip of the conductive object. The elastic member has a tip plate portion that is superposed on one surface of the tip portion, and an elastic plate portion that extends at a predetermined angle with respect to the tip plate portion, and the connector body is an insulator. A conductive contact held by the insulator, wherein the insulator is provided with an insertion groove into which the tip portion and the tip plate portion are received by no insertion force, and the conductor portion and the tip plate portion. When the elastic plate portion is elastically deformed in the state where the insert plate is inserted into the insertion groove, the tip plate portion is located at a position where the depth of the insertion groove is different, and is straight in the insertion direction into the insertion groove. Forces that oppose each other so as to spread the pair of wall surfaces to change, and the contact is electrically connected to the conductor portion of the conductive object at at least one of the positions where the depth of the insertion groove is different. A ZIF connector device is obtained which is characterized in that the contact parts which come into contact are positioned.

Further, according to the present invention, it includes a connection target substrate having a conductor pad at a predetermined position, a connector main body mounted on the connection target substrate, and an elastic member fitted to at least the tip of the conductive object. The elastic member has a tip plate portion that is superposed on the tip portion, and an elastic plate portion that extends at a predetermined angle with respect to the tip plate portion, and the connector body includes the tip plate portion and the tip. The elastic plate portion is elastically deformed in a state where the conductive portion of the conductive object is positioned on the conductive pad by inserting the portion with no insertion force, and has a holding portion that suppresses lifting of the tip plate portion. A ZIF connector device is obtained in which the pressing portion is provided at a position deeper than the conductor pad in the insertion direction.

According to the present invention, there is also provided a ZIF connector device characterized in that the elastic member and at least the tip of the conductive object are fixed to each other.

Further, according to the present invention, the elastic member corresponds to a space between adjacent conductors of a conductive object which are long in the insertion direction and are arranged at intervals in a direction orthogonal to the insertion direction. A ZIF connector device is obtained which is characterized in that slits are formed.

Further, according to the present invention, the side of the elastic plate portion opposite to the tip side of the tip portion of the elastic member is
A ZIF connector device is obtained in which a reinforcing portion for reducing deformation along the side is formed.

Further, according to the present invention, the connector main body has an arm portion extending in a direction opposite to the inserting direction, and the arm portion and the elastic member are elastically deformed when the elastic plate portion is elastically deformed. A ZIF connector device having an engaging device for keeping the elastic plate portion elastically deformed is obtained.

Further, according to the present invention, the arm portion has a coupling portion for coupling the connector body to the connection target substrate, and the connector body is integrally made of a metal plate. A ZIF connector device is obtained.

[0019]

The elastic member is applied to one surface of the tip of the conductive object of the present invention. The elastic member provides elastic energy for contact between the connector body and the conductive object. Since the elastic member can be made larger than the contact, the stored elastic energy is large and can have sufficient contact force and elastic deformation ability.

Further, since the elastic member is a relatively large operating portion, it can be easily operated with a finger, and the lever force is used to generate a contact force, so that the operating force is small.

Further, in the type in which the electrically conductive object and the substrate to be connected are in direct contact with each other, the connector body can be integrally formed from a metal plate.

[0022]

1 to 4 show an embodiment of a ZIF connector device according to the present invention. First, referring to FIGS. 1 to 3, in a ZIF connector device, an elastic member 2 provided on at least one surface of a tip 1a of a conductive object 1 and a tip 1a of the conductive object 1 that receives the elastic member 2 are provided. And a connector main body 4 for holding.

The connector body 4 is mounted on a connection target substrate 5 such as a printed circuit board. The elastic member 2 is
Tip plate portion 2a to be superposed on tip portion 1a of conductive object 1
And an elastic plate portion 2b extending at a predetermined angle with respect to the tip plate portion 2a.

The connector body 4 includes an insulator 7 and
It has a plurality of conductive contacts 8 held by an insulator 7. The insulator 7 is provided with an insertion groove 9 into which the tip portion 1a of the conductive object 1 and the tip plate portion 2a of the elastic member 2 are received by no insertion force. In the depth direction of the insertion groove 9 (corresponding to the insertion direction of the elastic member 2), at least one of the positions having different depths is in conductive contact with the conductor portion 10 exposed on the back surface of the conductive object 1. The contact portion 8a of the contact 8 is positioned. Further, the contact 8 has a terminal portion 8b extending outside the insulator 7. The terminal portion 8b is inserted into the through hole 5a formed in the connection target substrate 5 and connected to the conductor of the connection target substrate 5 by soldering or the like.

Further, in FIGS. 1 to 3, the entire one surface of the elastic member 2 is fixed to the corresponding conductive object 1 by adhesion, soldering, welding or the like. That is, in the conductive object 1, the sheet-shaped insulating portion 1b is fixed to the entire one surface of the elastic member 2, and the conductor portion 10 is exposed on the insulating portion 1b on the opposite surface of the elastic member 2.

The elastic member 2 has a plurality of slits 11 corresponding to the adjoining portions of the plurality of conductor portions 10 of the conductive object 1 which are long in the inserting direction and are arranged at intervals in the direction orthogonal to the inserting direction. Are formed. Also, the elastic member 2
On the side of the rear end portion on the side opposite to the front end side of the front end portion 2a, a reinforcing portion 12 reinforced by curling is formed along this side so as to reduce deformation. There is.

The connector body 4 has a pair of arm portions 13a and 13b extending from both ends of the insulator 7 in the direction opposite to the inserting direction. Arm part 13
The a and 13b are made integrally with the insulator 7.
The arm portions 13a and 13b and the elastic member 2 are elastic plate portions 2b.
It has an engaging device for holding the elastic plate portion 2b in a state of being elastically deformed when elastically deforming. The engagement device is
The pair of arm portions 13a and 13b each include a locking groove 14 formed inside the tips thereof, and a protrusion 15 formed on each of two sides near the rear end of the elastic member 2b in the insertion direction of the elastic plate portion 2b.

As shown in FIG. 3, the conductor portion 1 of the conductive object 1
0 and the tip end plate portion 2b of the elastic member 2 are inserted into the insertion groove 9 with no insertion force. In this state, as shown in FIG. 3, the elastic plate portion 2b is pressed toward the connection target member 1 with a finger and elastically deformed. At this time, the protrusion 15 is inserted into the locking groove 14 which is the engaging device, and the elastically deformed state is maintained.

When the protrusion 15 hits the arm portions 13a and 13b and spreads them to reach a predetermined position, the protrusion 15 enters the engaging groove 14 and the elastically deformed state is maintained. Protrusion 1
When the finger 5 is released from the elastic plate portion 2b after the elastic plate portion 5b is accommodated in the locking groove 14, the other side of the elastic member 2b tries to return to the original state, but the central portion of the elastic plate portion 2b becomes a projecting chevron. In order to try, the elastic plate portion 2b is curled into a rounded reinforcing portion 1
It is desirable to form 2.

Further, in the slit 11, when the height of the contact portion 8a of the contact 8 is not uniform or the surface of the conductor portion 10 of the conductive object 1 is not flat, the contact force greatly varies. Therefore, the elastic member 2 is also deformed, and each contact 8 has an independent deforming ability to prevent the deformation.

As is apparent from FIG. 4, the tip end plate portion 2a of the elastic member 2 has a pair of wall surfaces 9a at positions having different depths of the insertion groove 9 and orthogonal to the insertion direction into the insertion groove 9.
The forces in the directions to push 9b apart, that is, in the opposite directions, are generated and changed.

By the force (W) for pushing the reinforcing portion 12 of the elastic plate portion 2b toward the substrate 1 to be connected, they are opposite to each other at a position along the depth direction (spacing S) in the insertion groove 9 of the connector body 4. Since the forces P and F are generated on the conductor 8, the conductor portion 10 of the conductive object 1 contacts the contact portion 8 a of the contact 8.

Since WL = PS according to the principle of leverage, W = S / L · P, and if the ratio of S and L is increased, the operating force becomes larger than the contact force P required for the contact portion 8a. A lever boost can be utilized that can make W very small.

5 and 6 show another embodiment of the ZIF connector. This ZIF connector includes a connection target substrate 5 having a conductor pad 5a at a predetermined position, a connector body 20 mounted on the connection target substrate 5, and an elastic member 2 provided on one surface of the tip end portion 1a of the conductive object 1. . Since the elastic member 2 and the conductive object 1 are the same as the elastic member 2 and the conductive object 1 shown in FIGS. 1 and 2, the description thereof will be omitted.

The connector body 20 has the elastic plate portion 2b in a state in which the distal end plate portion 2a of the elastic member 2 and the distal end portion 1a of the conductive object 1 are inserted with no insertion force and positioned on the conductor pad 5a of the connection target substrate 5. Tip plate 2a when elastically deformed
Holding section 21 for suppressing the lifting of the
And a base 22 connected to the. Holding part 21
The base 22 and the base 22 have a substantially U-shaped cross section. However, since the shapes of the holding portion 21 and the base portion 22 are intended to hold down the front end plate portion 2a, the shapes are not particularly limited, and the tip end of the holding portion 21 and the connection target substrate 5 are as described above. It may be formed so that a predetermined space is provided therebetween.

The connector body 20 has a pair of arm portions 23 extending from both ends of the base portion 22 in the direction opposite to the inserting direction.
It has a and 23b. The arm portions 23a and 23b and the elastic member 2 have an engagement device that holds the elastic plate portion 2b in the elastically deformed state when the elastic plate portion 2b is elastically deformed. The engaging device is composed of the locking grooves 24 of the arm portions 23a and 23b and the projection 15 of the elastic plate portion 2b, as described in FIG.

Further, the arm portions 23a and 23b have a coupling portion 25 which is inserted in the hole 5b of the connection target substrate 5 and which couples the connector main body, at an intermediate portion thereof. The connector body 20 is integrally made of a metal plate. That is, the connector main body 20 can be formed by punching a single metal plate and subjecting it to bending, so that the pressing portion 21, the base portion 22,
The arm portions 23a and 23b and the coupling portion 25 are integrally formed.

As shown in FIG. 6, the tip plate portion 2a of the elastic member 2 and the tip portion 1a of the conductive object 1 are inserted between the tip of the holding portion 21 and the upper surface of the connection target substrate 5 by no insertion force. It At this time, each of the elastic member 2 and the tip of the conductive object 1 has a base portion 22 facing the holding portion 21 in the insertion direction.
It is inserted until it hits. After that, when the rear end of the elastic plate portion 2 is pressed with a finger, the upper surface of the tip plate portion 2b hits the tip of the pressing portion 21, and at the same time, the connecting portion between the tip plate portion 2a and the elastic plate portion 2b is strong against the contact pad 5a. Contact by pressing down force. The protrusion 15 of the elastic plate portion 2b
Pushes the arms 23a and 23b outwards slightly, and enters the locking grooves 24 of the arms 23a and 23b,
Holds the state of being elastically deformed.

FIG. 7 shows a state in which the conductive object 1 and the elastic member 2 are integrally bonded and fixed only by the tip plate portion 2a and the tip portion 1a. The conductive object 1 and the elastic member 2 are not necessarily integrated, and in the above-mentioned embodiments,
The conductive object 1 and the elastic member 2 may be separately inserted into the insertion groove 9 or between the connection target substrate 5 and the tip of the holding portion 21.

Furthermore, in each of the above-mentioned embodiments, the conductive object 1 has the structure in which the conductor portion 10 is provided only on one surface, but as shown in FIG.
It is also possible to adopt the conductive object 1 having the conductor portion 10 on the other surface so as to sandwich b and use it as a ground.
In this case, the elastic member 2 is made of metal, and is fixed to the conductive object 1 by a joining method that maintains conductivity, for example, a conductive adhesive 1c, soldering, welding, or the like.

In addition, a conductor contact is provided at the portion that comes into contact with the contact force F. In the embodiment shown in FIGS. 5 and 6, if the holding portion 21 is metal, it can be used as a conductor.

[0042]

As described above with reference to the embodiments, according to the ZIF connector of the present invention, the elastic member is provided on one surface of the tip of the conductive object, and the elastic member is provided for contact between the connector body and the conductive object. By applying the elastic energy of, the conductive object and the connector body can be easily connected.

Further, since the elastic member can be manufactured larger than the contact and the stored elastic energy is large, it is possible to have a sufficient contact force and elastic deformation ability.

Further, since the elastic member is a relatively large elastic plate portion (operating portion), it is easy to operate with a finger. At this time, since the lever is used to generate the contact force, the operation force is small.

In the slit, when the height of the contact portion of the contact is not uniform or the conductor surface of the conductive object is not flat, when the contact force largely varies, the elastic member is also deformed. Each contact has an independent deformation capacity and can cope with variations.

Since the elastic plate portion of the elastic member is formed with the reinforcing portion for reducing the deformation along the side, if the finger is separated from the elastic plate portion after the projection is fitted in the engaging groove, the other side of the elastic member is formed. Can suppress the return to the original state.

The arm portion and the elastic member can keep the elastic plate portion elastically deformed when the elastic plate portion is elastically deformed.

Further, in the type in which the conductive object and the substrate to be connected are in direct contact with each other, the connector body can be integrally made of a metal plate, so that a ZIF connector device excellent in economical efficiency can be obtained.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing an embodiment of a ZIF connector of the present invention.

FIG. 2 is a side view showing a fixed state of the conductive object and the elastic member of FIG.

FIG. 3 is a cross-sectional view showing a state where an elastic member and a tip of a conductive object are inserted into a connector body of the ZIF connector of FIG.

4 is a cross-sectional view showing a state where an elastic member and a conductive object are in contact with each other from the inserted state of the ZIF connector of FIG.

FIG. 5 is a perspective view showing a connector body in another embodiment of the ZIF connector of the present invention.

6 is a cross-sectional view showing a state where an elastic member and a conductive object of the ZIF connector of FIG. 5 are in contact with each other.

FIG. 7 is a perspective view showing an example of a fixed state of an elastic member and a conductive object used in the ZIF connector of the present invention.

FIG. 8 is a side view showing another example of a fixed state of an elastic member and a conductive object used in the ZIF connector of the present invention.

FIG. 9 is a cross-sectional view showing a state in which the elastic member and the tip of the conductive object are inserted into the connector body of the conventional ZIF connector.

10 is a cross-sectional view showing a state in which an elastic member and a tip of a conductive object are connected to a connector body of the ZIF connector of FIG.

[Explanation of symbols]

 1,32 Conductive object 1a Tip part 1b Insulation part 2 Elastic member 2a Tip plate part 2b Elastic plate part 4,20,31 Connector body 5,30 Connection target substrate 5a Conductor pad 7,33 Insulator 8,34 Contact 8a Contact part 8b Terminal portion 9 Insertion groove 10 Conductor portion 11 Slit 12 Reinforcing portion 13a, 13b Arm portion 14 Locking groove 15 Protrusion 21 Holding portion 22 Base portion 25 Coupling portion 34b Contact spring portion 35 Movable member

Claims (7)

[Claims] 1. An elastic member that fits at least the tip of a conductive object, and a connector body that receives the elastic member and holds the tip of the conductive object, wherein the elastic member is one surface of the tip. And the tip plate part
The connector main body has an insulator and an electrically conductive contact held by the insulator, and the elastic body has an elastic plate extending at a predetermined angle with respect to the tip plate. When the tip end portion and the tip end plate portion are provided with an insertion groove that can be received by no insertion force, and the elastic plate portion is elastically deformed in a state where the conductor portion and the tip end plate portion are inserted into the insertion groove. At the position where the depth of the insertion groove is different,
And, the forces in opposite directions are generated to change so as to spread a pair of wall surfaces orthogonal to the insertion direction into the insertion groove, and the contact changes at least at positions where the depth of the insertion groove is different. The ZIF connector device is characterized in that a contact portion which is in conductive contact with the conductor portion of the conductive object is positioned at one position. 2. A connection target substrate having a conductor pattern at a predetermined position, a connector main body mounted on the connection target substrate, and an elastic member fitted to at least a tip of a conductive object, wherein the elastic member is the tip. A front end plate portion to be overlapped with the end portion, and an elastic plate portion extending at a predetermined angle with respect to the front end plate portion, and the front end plate portion and the front end portion are attached to the connector body by a non-insertion force. When the elastic plate portion is elastically deformed while being inserted and the conductive portion of the conductive object is positioned on the conductor pad, the elastic plate portion has a pressing portion that suppresses lifting of the tip plate portion, and the pressing portion is A ZIF connector device, which is provided at a position deeper in the insertion direction than the conductor pad. 3. The ZIF connector according to claim 1 or 2, wherein the elastic member and at least the tip of the conductive object are fixed to each other.
IF connector device. 4. The ZIF connector according to claim 1, wherein the elastic member is made of a conductor of a conductive object, which is long in the insertion direction and is arranged at intervals in a direction orthogonal to the insertion direction. A ZIF connector device characterized in that slits are formed between adjacent portions. 5. The ZIF connector according to claim 1 or 2, wherein the side of the elastic plate portion opposite to the tip side of the tip portion of the elastic member has a small deformation along the side. A ZIF connector device having a reinforcing portion. 6. The ZIF connector according to claim 1, wherein the connector body has an arm portion extending in a direction opposite to the inserting direction, and the arm portion and the elastic member elastically move the elastic plate portion. A ZIF connector device having an engaging device for keeping the elastic plate portion elastically deformed when deformed. 7. The ZIF connector according to claim 6, wherein the arm portion has a coupling portion that couples the connector body to the connection target substrate, and the connector body is integrally made of a metal plate. Characteristic ZIF connector device.