JP2002008754A - Connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily fit the pitches of contacts, to the pitches of plural electrodes as objects to be connected, without needing an appliance and a jig, and to simplify the relocation to the other objects to be connected of different electrode pitches. SOLUTION: A contact arrangement coil member 100 with plural contacts 120 is formed by coating a conductor to insulate each turn of the coiled insulating member 110 having plural turns, from an adjacent turn in a range including a continuous section from a first electrode contact of the object to be connected to a second electrode contact. A coil member holding part 200 with a variable pitch function comprises a coil holding member 210 fixing one end of the contact arrangement coil member 100, and extending its outside to the other end, and a variable contact pitch mechanism 220 held by the other end of the coil holding member 210 and capable of moving and fixing the other end of the coil holding member 210 in parallel with a coil shaft.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connector, and more particularly to a connector for correspondingly connecting a plurality of electrodes arranged in two planes.

[0002]

2. Description of the Related Art With the miniaturization and miniaturization of electronic components and electronic elements such as semiconductor devices and the high-density mounting of electronic devices on which these electronic components and electronic elements are mounted, these electronic components, electronic elements and circuits have been developed. The connectors used for connection with the board and the connection between circuit boards are also being miniaturized, and the connectors for narrowly pitching each other and correspondingly connecting between a plurality of miniaturized electrodes are used. As a contact for
Examples of using coil-shaped connection members are increasing. The reason is that the electrode pitch size can be relatively easily narrowed, and at the same time, the contact resistance and the specific resistance can be reduced.
It is inexpensive, can secure the dimensions between the connection electrodes with high accuracy, and is hardly affected by the coefficient of thermal expansion of the member,
High connection reliability can be ensured.

FIGS. 5A and 5B show a first example of a connector using such a coil-shaped connecting member (see, for example, Japanese Patent Application Laid-Open No. 9-82390). This first
In the example of the connector, each of the plurality of coil-shaped contacts 300 formed in the shape of a coil that turns multiple times by an elastic metal conductor, and a thickness smaller than the turning diameter of the plurality of coil-shaped contacts 300 A plurality of coil-shaped contacts 300 formed of an elastic insulator, and a contact holding member 350 arranged such that the revolving portions thereof are exposed from both surfaces so that the central axes thereof are aligned and insulated from each other. It is configured with.

As shown in FIG. 5B, the connector of the first example is sandwiched between circuit boards 500x and 600x, and an electrode 510x of the circuit board 500x and a corresponding electrode of the circuit board 600x. 610x is connected by the contact 300.

[0005] The connector of the first example is made of, for example, an ultrafine elastic wire having a diameter of 1 to 5 μm, and a diameter of 20 to 10 μm.
A continuous long coil spring is formed spirally with a pitch of about 10 μm at 0 μm, and the coil spring is buried in an elastic insulator such as a molten silicone rubber and solidified. After the elastic insulator is etched until a predetermined amount of the loop portion of the coil spring is exposed from the two surfaces, the circuit board 500x to be connected is formed.
(Or 600x) electrodes 510x (or 610x).
According to the arrangement of x), it can be manufactured by a method such as irradiating a laser beam with a spot on one loop corresponding to the electrode gap in the exposed portion of the coil spring and cutting it.

In the connector of the first example, the electrode gap and the electrode pitch of the circuit board are changed by selecting the diameter of the wire forming the coil spring, the diameter of the coil spring, the loop interval, and the like, and cutting with a laser beam. It can easily deal with the order of μm, and the miniaturization is facilitated. Further, the contact portion (300) is formed in a coil shape by an elastic metal conductor, and the electrodes 510x, 6
Since the elastic contact is made with 10x, the contact resistance and the specific resistance can be reduced.

FIG. 6 is a side view showing a second example of a conventional connector (see, for example, Japanese Patent Application Laid-Open No. 2000-12126). This second example is suitable for mounting a semiconductor device on a mother board. The connector of the second example includes a plurality of electrodes 510 on circuit boards 500y and 600y to be connected.
y, 610y, and a coil-shaped connecting member 400 formed into a continuous single coil including a conductive portion 420 corresponding to the pitch and an insulating portion 410 connecting the conductive portions 420, and the conductive portion 420 is a circuit. Substrate 500y, 600y
Bonding to the plurality of electrodes 510y and 610y (4
50).

The coil-shaped connecting member 400 is formed by, for example, shaping a wire made of an insulating resin into a coil shape, and applying a metal layer to a portion corresponding to a circuit board electrode to form a conductive portion 420.

In the connector of the second example, the height (interval) between the circuit boards 500y and 600y can be more precisely determined by the coil-shaped connecting member 400 as compared with the method using a solder ball even if the miniaturization proceeds. , And is less affected by the coefficient of thermal expansion of each component material, and the connection reliability can be improved. Moreover, it is inexpensive.

[0010]

In the first example, the conventional connector described above has a spiral shape formed by an ultrafine elastic wire.
A continuous long coil spring is formed, and this coil spring is held on a contact holding member 350 made of an elastic insulator so that a fixed amount of a loop portion of the coil spring is exposed from each of its two surfaces. By cutting one loop corresponding to the electrode gap in the exposed portion of the coil spring in accordance with the arrangement pitch of the plurality of electrodes of the target circuit boards 500x and 600x, the loop was arranged and held on the contact holding member 350. Since the configuration and structure allow a connector having a plurality of coil-shaped contacts 300 to be obtained, it is easy to miniaturize and easily obtain a contact arrangement suitable for the arrangement pitch of a plurality of electrodes to be connected. However, a laser device that cuts a part of the coil spring according to the electrode array pitch Requires expensive equipment, and a problem that, when the results in cutting the coil spring once,
There is a problem that this cannot be used for connection objects having different electrode arrangement pitches. In the second example, a wire made of insulating resin is shaped into a coil, and the wire is formed on a portion of the circuit board corresponding to the electrode. A conductive portion 420 is formed by, for example, applying a metal layer, and one coil-shaped connecting member 40 including a plurality of conductive portions 420 and an insulating portion 410 connecting the conductive portions 420 to each other.
0, and the plurality of conductive portions 420 are connected to the plurality of electrodes 510 of the circuit boards 500y and 600y by soldering or the like.
y, 610y, so that a plurality of conductive portions 4 are arranged at an arrangement pitch of the plurality of electrodes 510y, 610y.
Although it is easy to match the two, there is a problem that equipment and work for joining the conductive part 420 to the electrodes 510y and 610y are required.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems of the prior art, without performing any work requiring equipment and jigs.
To provide a connector in which the arrangement pitch of a plurality of contacts can be easily adjusted to the arrangement pitch of a plurality of electrodes to be connected by the connector itself, and can be easily transferred to a connection object having a different electrode arrangement pitch. It is in.

[0012]

A connector according to the present invention comprises a plurality of first electrodes arrayed and formed at a predetermined pitch on a first plane, and a plurality of first electrodes arranged on a second plane. A connector for correspondingly connecting a plurality of second electrodes arranged at the same pitch as the arrangement pitch of one electrode, and having the following configurations to achieve the above object. And (A) The elastic member is formed into a coil shape that makes a plurality of turns. For each of the plurality of turns, a portion of the one turn that comes into contact with the first electrode on the first plane is the second turn. A conductor, including a continuous section up to a portion in contact with a corresponding second electrode on a plane, which is smaller than one turn, is connected by a conductor, and is not connected to a conductor of an adjacent turn portion. A contact-arranged coil-shaped member provided with an arranged contact. (B) While holding and fixing one end of the contact-arranged coil-shaped member, the other end can be moved and fixed in parallel with its coil axis. And with the movement of this other end,
The contact arrangement is provided such that the pitch of the contacts provided in each of the plurality of turns can be changed, and the contacts of the plurality of turns can be brought into pressure contact with the corresponding first and second electrodes. A coil-shaped member holding section with a variable pitch function for holding a coil-shaped member

Further, the contact-arranged coil-shaped member is formed by a resilient insulator into a plurality of coil-shaped coil-shaped insulating members. Among them, a contact made of a conductor adhered to the surface in the predetermined range,
Wherein the coil-shaped member holding section with a pitch variable function holds and fixes one end of a contact-arranged coil-shaped member at one end portion, and makes the contact parallel to the coil axis thereof. A coil holding member that extends to the other end of the disposed coil member, and the other end of the contact disposed coil member held and fixed at the other end of the coil holding member; Is moved parallel to the coil axis and fixed, a contact pitch variable mechanism,
And a configuration comprising:

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention comprises a plurality of first electrodes arrayed and formed at a preset pitch on a first plane, and a plurality of the plurality of first electrodes arranged on a second plane. A plurality of second electrodes arranged and formed at the same pitch as the arrangement pitch of the first electrodes
And a connector for making corresponding contact connection between the electrodes and a plurality of turns by an elastic member, and for each of the plurality of turns, one of the turns on the first plane. The conductor is connected to a range smaller than one turn thereof, including a continuous section from a portion in contact with the first electrode to a portion in contact with the corresponding second electrode on the second plane, and A contact-arranged coil-shaped member comprising a contact arranged so as not to be connected to the conductor of the adjacent swivel part, and one end of the contact-arranged coil-shaped member while holding and fixing one end, A structure in which the pitch of the contacts provided for each of the plurality of turns can be changed in accordance with the movement of the other end; and A coil-shaped member holding portion with a variable pitch function, which holds the contact-arranged coil-shaped member such that each contact can make pressure contact with the corresponding first electrode and second electrode. It is composed.

With such a configuration and structure,
The connector itself can be easily connected to the arrangement pitch of the plurality of first electrodes and the plurality of second electrodes by the connector itself without performing work requiring equipment and jigs. Since the arrangement pitch can be adjusted and the contact arrangement pitch can be changed by the connector itself, it is easy to relocate to a connection object having a different electrode arrangement pitch.

[0016]

Next, embodiments of the present invention will be described with reference to the drawings. 1 (a) and 1 (b) are perspective and side views showing a first embodiment of the present invention, including a connection object, and FIG. 2 (a).
(C) is a side view of the contact-arranged coil-shaped member of the first embodiment viewed from the coil axis direction, and FIG.
FIG. 3A is a cross-sectional view taken along arrows A and BB.
FIG. 3B is a side view showing two states of the first embodiment having different contact pitches.

The connector of the first embodiment has a plurality of electrodes 510 arranged and formed at a constant pitch on one surface of a circuit board 500 and a plurality of electrodes 510 on one surface of a circuit board 600. A plurality of electrodes 610 arranged and formed at the same pitch for corresponding contact connection, and the main configuration thereof is a contact-arranged coil-shaped member 100,
And a coil-shaped member holding section 200 having a pitch variable function, and details thereof are as follows.

The contact-arranged coil-shaped member 100 includes a coil-shaped insulating member 110 formed into a plurality of turns by an elastic insulator, and a coil-shaped insulating member 110.
For each of a plurality of turns of the circuit board 6, a portion of the one turn that contacts the electrode 510 of the circuit board 500
A contact which is connected to a conductor smaller than one turn thereof, including a continuous section up to a portion in contact with the corresponding electrode 610 at 00, and is not connected to a conductor of an adjacent turn portion. 120.

The contact-arranged coil-shaped member 1
Reference numeral 00 denotes a shape in which the cross section of the coil-shaped insulating member 110 is square, and the contact 120 is attached to the outer surface thereof.

Coil-shaped member holding section 2 with variable pitch function
Reference numeral 00 denotes a coil holding member 210 that holds and fixes one end of the contact-arranged coil member 100 and extends along the outside thereof to the other end side in parallel with the center axis thereof, and the other end side of the coil holding member 210. And the other end of the contact-arranged coil-shaped member 100 is held and fixed.
A variable contact pitch mechanism 2 for moving and fixing the plurality of contacts 120 of the contact-arranged coil-shaped member 100 by changing and adjusting the arrangement pitch of the plurality of contacts 120 in parallel with the coil axis.
And a plurality of contacts 120 of the contact-arranged coil-shaped member 100 for contacting the electrodes 510 of the circuit board 500 and the corresponding electrodes 610 of the circuit board 600 with pressure. 1
The structure and the shape of the coil holding member 210 are held so that a part thereof protrudes from the side surface of the coil holding member 210.
3 (a) and FIG.
As shown in (b), the pitch of the plurality of contacts 120 can be changed.

In the first embodiment, as in the prior art,
There is no work that requires equipment such as soldering or cutting with a laser beam, and the contact pitch variable mechanism 220 allows the contact 12 to be easily and easily adjusted to the pitch of the plurality of electrodes 510 and 610 of the circuit boards 500 and 600.
A pitch of 0 can be matched. Therefore, it is easy to relocate and use a connection target having a plurality of electrodes having a different electrode arrangement pitch from the one used so far.

FIGS. 4 (a) to 4 (c) are side views showing a second embodiment of the present invention, and sectional views taken along arrows AA and BB of the coil-shaped member provided with the contacts. It is. The difference between the second embodiment and the first embodiment is that
In the contact-arranged coil-shaped member 100 of the first embodiment, the contact-arranged coil-shaped member uses a coil-shaped insulating member 110 having a rectangular cross section, and a plurality of contacts 120 are formed on an outer surface of a predetermined range. On the other hand, in the second embodiment, a coil-shaped insulating member 110a having a round cross section is used, and a plurality of contacts 120a are attached on the entire surface in a specified range. It is a point.

The other parts are the same as those of the first embodiment, and the functions and effects are the same as those of the first embodiment.
In these examples, the plurality of contacts 120, 120a of the contact-arranged coil-shaped members 100, 100a are attached to the coil-shaped insulating member 110a by a plating method, a method of bonding a thin metal plate or the like. be able to. Also, these can be integrally formed by a mold.

[0024]

As described above, according to the present invention, a plurality of turns are formed into a coil shape by an elastic member.
A range smaller than one turn including a continuous section from a portion in contact with the first electrode on the first plane to a portion in contact with the corresponding second electrode on the second plane to be connected. And a contact-arranged coil-shaped member comprising contacts arranged so as to be connected to the conductor and not to be connected to the conductor of the adjacent swirling portion, and holding one end of the contact-arranged coil-shaped member. While fixing, the other end,
It has a structure that can be moved and fixed in parallel with the coil axis and held so that the pitch of the contact provided for each of the plurality of turns can be changed with the movement of the other end. A coil-shaped member holding section with a pitch variable function for holding the contact-arranged coil-shaped member so that the contact can make pressure contact with the corresponding first electrode and second electrode. Thereby, the connector itself can be easily connected to the arrangement pitch of the plurality of first electrodes and the plurality of second electrodes by the connector itself without performing work requiring equipment and jigs. The contact arrangement pitch can be adjusted, and the contact arrangement pitch can be changed by the connector itself. Can be in, there is an effect that.

[Brief description of the drawings]

FIG. 1 is a perspective view and a side view showing a first embodiment of the present invention.

FIG. 2 is a side view of the contact-arranged coil-shaped member of the embodiment shown in FIG.
It is arrow sectional drawing and BB arrow sectional drawing.

FIG. 3 is a side view showing two states in which the contact pitch of the embodiment shown in FIG. 1 is different.

FIG. 4 is a side view showing a second embodiment of the present invention, and FIG.
It is sectional drawing seen from arrow A and BB arrow.

FIG. 5 is a perspective view and a side view showing a first example of a conventional connector.

FIG. 6 is a side view showing a second example of a conventional connector.

[Explanation of symbols]

 100, 100a Coiled member provided with contact 110, 110a Coiled insulating member 120, 120a Contact 200 Coiled member holding part with pitch variable function 210 Coil holding member 220 Contact pitch variable mechanism 300 Coiled contact 350 Contact holding member 400 Coil Connection member 410 insulating part 420 conductive part 450 soldering part 500,500x, 500y circuit board 510,510x, 510y electrode 600,600x, 600y circuit board 610,610x, 610y electrode

Claims (3)

[Claims] A plurality of first electrodes arranged and formed at a preset pitch on a first plane; and a plurality of first electrodes arranged on a second plane.
A connector for correspondingly contact-connecting a plurality of second electrodes arranged at the same pitch as the arrangement pitch of the plurality of first electrodes, the connector having the following configurations. . (A) The elastic member is formed into a coil shape that makes a plurality of turns. For each of the plurality of turns, a portion of the one turn that comes into contact with the first electrode on the first plane is the second turn. A conductor, including a continuous section up to a portion in contact with a corresponding second electrode on a plane, which is smaller than one turn, is connected by a conductor, and is not connected to a conductor of an adjacent turn portion. A contact-arranged coil-shaped member provided with an arranged contact. (B) While holding and fixing one end of the contact-arranged coil-shaped member, the other end can be moved and fixed in parallel with its coil axis. And with the movement of this other end,
The contact arrangement is provided such that the pitch of the contacts provided in each of the plurality of turns can be changed, and the contacts of the plurality of turns can be brought into pressure contact with the corresponding first and second electrodes. A coil-shaped member holding section with a variable pitch function for holding a coil-shaped member 2. The method according to claim 1, wherein the contact-arranged coil-shaped member is a coil-shaped insulating member formed by an elastic insulator into a plurality of turns. 2. The connector according to claim 1, further comprising: a contact made of a conductive material that adheres to the surface of the predetermined area. 3. 3. The coil-shaped member provided with a pitch-variable function, wherein one end of the coil-shaped member provided with a contact is held and fixed at one end, and the coil-shaped member provided with the contact is parallel to the coil axis. A coil holding member extending to the other end of the coil holding member, and the other end of the contact-arranged coil-shaped member held by the other end of the coil holding member to hold and fix the other end of the coil shaft. Move in parallel with
The connector according to claim 1, further comprising: a variable contact pitch mechanism for fixing.