JP2003086317A - Socket for electric parts - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a socket for electric parts which can turn a connecting terminal of an electric part while having it in contact with the same, secure a given wiping volume while reducing up and down movement of the contract member, and further, can realize reduction of the manufacturing cost. SOLUTION: A twisting part 12a is formed at each contact member 6, and at same time, a guide hole 8a for guiding each contact member 6 to rotate in sliding contact with the twisting part 12a in accompaniment of the up and down movement of each contact member 6 is formed at a plate assembly body 5 arranged in a socket main body 4.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a socket for electric parts, and more particularly to a performance test of electric parts.
The present invention relates to a socket for an electric component for electrically connecting the terminal of the electric component and the printed wiring board of the measuring instrument via a plurality of contacts.

[0002]

2. Description of the Related Art Conventionally, in order to perform a performance test of an electric component such as a semiconductor device, an electric component socket for making an electrical connection between a terminal of this electric component and a printed wiring board of a measuring instrument is often used. Has been.

FIG. 7 and FIG. 8 show a BGA type I as an electrical component in such a conventional electrical component socket 41.
It shows the one that performs an electrical test of an IC package 42 called a C package. The IC package 42 has a package body 43 in which a required circuit configuration is incorporated, and on the bottom surface portion 43a of the package body 43, a plurality of connection terminals 44 made of substantially spherical solder balls are arranged in a matrix. It is arranged.

Such a BGA type IC package 42
The conventional electrical component socket 41 for testing
A recess 46 is formed in the center of the upper part of the socket body 45. In the recess 46, a top plate 47 for mounting the IC package 42 on the upper surface is guided so as to be vertically movable. The spring 48 is always biased upward. This top plate 47 has IC packages 4 at the corners on the upper surface side.
A positioning portion 49 for receiving and positioning the second package body 43 is formed, and an insertion opening portion for inserting a contact member described later into a position corresponding to each connection terminal 44 of the positioned IC package 42. 50 is drilled.

The socket body 45 also has a recess 46.
The lead plate 51 arranged inside is fixed. The lead plate 51 includes a lead-out terminal 52 that is fitted into the socket body 45 and is located below the base portion, a flange portion 53 that abuts on the bottom surface of the recess 46, and a lead piece portion 54 that is mounted on the flange portion 53. It is configured.

As shown in FIG. 7, the lead piece portion 54 has a flat plate shape with a rectangular cross section, and the upper end portion is twisted by a predetermined angle with respect to the lower end portion.

In addition, the lead piece portion 54 of the lead plate 51,
A contact member 5 in which a rectangular lead hole 55 is vertically slidably fitted and a tapered contact surface 56 for holding the connection terminal 44 is formed on the inner peripheral surface of the opened upper end.
7 is inserted in the insertion opening 50 of the top plate 47. An abutting step 58 is formed on the lower outer periphery of the contact member 57 to abut against the peripheral edge of the lower surface of the insertion opening 50 and prevent the contact member 57 from slipping upward.

Further, a contact holding coil spring 59 is interposed between the upper surface of the flange portion 53 of the lead plate 51 and the lower surface of the contact member 57 so as to constantly bias the contact member 57 upward.

A contact pin mechanism is constituted by the lead plate 51, the contact member 57 and the contact holding coil spring 59.

On the other hand, the base end side of the socket body 45 (see FIG. 6).
A cover member 60 is provided on the right side of FIG. 1) so as to be openably and closably held by a pivot pin 60a and constantly biased in an opening direction by a biasing spring 60b. In addition, the pivot pin 6 is provided on the tip side (left side in FIG. 6) of the socket body 45.
A locking lever 61 is provided which is held by the lathe 1a so as to be upright and is always biased in the standing direction by a biasing spring 61b. An engaging groove 60d is formed on the upper surface of the tip of the cover member 60 via the guide slope 60c, and the cover member 60 is provided inside the engaging lever 61 (on the right side in FIG. 6).
The guide groove 60c guides the locking groove 6 in the closed state.
A downward locking jaw 61c for locking to 0d is formed to project.

Therefore, the conventional socket 4 for electric parts is used.
In the first embodiment, first, the locking lever 61 provided on the socket body 45 is retracted to the open position against the biasing spring 61b, so that the cover member 60 is maintained in the open state by the biasing spring 60b. Then, when the IC package 42 is inserted into each positioning portion 49 on the top plate 47 in this state, each corner portion of the package body 43 is guided to each positioning portion 49 and the positioning is automatically regulated.

Then, the cover member 60 in the open state is moved in the closing direction against the urging force of the urging spring 60b, whereby the cover member 60 is moved to the top plate 47.
In order to uniformly press the package body 43 positioned above from above, the top plate 47 is lowered against the spring 48. By this operation, the top plate 4
The connecting terminals 44 of the IC package 42 are brought into contact with the tapered contact surfaces 56 of the contact members 57 in the insertion opening 50 of the IC package 7.

Further, when the package body 43 is pressed by the cover member 60, the contact member 57 rotates while being in contact with each connection terminal 44 of the IC package body 42, and the wiping action is executed.

That is, when the connecting terminal 44 is further pressed against the tapered contact surface 56 of the contact member 57 by the connecting terminal 44, the contact member 5 is pressed.
When the rectangular lead hole 55 of No. 7 moves downward while being guided by the lead piece 54 of the lead plate 51, a rotational force is applied to the contact member 57 along the twist angle of the lead piece 54, and the taper is tapered. The contact surface 56 of the connection terminal 44 remains in contact with the connection terminal 44, and
The spherical surface portion other than the above will be effectively rubbed. As a result, the connection terminal 44 in contact with the tapered contact surface 56
The oxide film on the contact surface is effectively removed and the dust is removed, so that the electrical connection is surely made, and the lower dead point contact surface 44a of the connection terminal 44 and its periphery are not damaged. .

[0015]

However, in such a conventional socket 41 for electric parts, the contact member 57 and the lead plate 51 are subjected to a metal surface treatment such as plating with a metal material or as needed. When the contact member 57 is rotated while being guided by the lead plate 51, the metals come into contact with each other.
There is a problem that the friction coefficient due to the contact between the two is large. When the friction coefficient is large as described above, if the lead piece 54 has a large twist angle in order to reduce the vertical movement amount while ensuring the rotation angle of the contact member 57, a smooth rotation operation cannot be obtained and a malfunction occurs. It was likely to occur. Therefore, in order to smoothly rotate the contact member 57 at a desired rotation angle, it is necessary to set a certain amount of vertical movement amount.

Further, in the conventional rotating structure of the contact member 57 in the electrical component socket 41, since the lead plate 51 is shaved by metal working to form a twist angle, the cost is increased. There was also a problem.

The present invention has been made in view of such problems, and the contact member can be rotated while being in contact with the connection terminal of the electric component with a simple structure.
It is an object of the present invention to provide an electrical component socket that can secure a predetermined wiping amount (angle) while reducing the vertical movement amount of the contact member, and further can reduce the manufacturing cost. is there.

[0018]

In order to solve the above-mentioned problems, the invention according to claim 1 is characterized in that a socket main body and an axial line which is vertically movable in the socket main body and extends in the vertical direction. The conductive spring member is rotatably disposed, is biased upward by a conductive spring member, and is in contact with the connection terminal of the electric component, the engaging portion that engages with the socket body, and the conductive spring member. A top plate having a through hole that is vertically movable in the socket body, is biased upward by a spring member, and has a through hole that receives the contact part of the contact. , The socket body has an engaged portion with which an engaging portion of the contactor is engaged, and a composite for guiding the contactor to rotate the contactor when the contactor is moved up and down. A guide part made of resin material is formed. When the electric component mounted on the top plate is pressed downward, the contact of the electric component is pressed downward by the terminal of the electric component, thereby guiding the contact to the guide portion of the socket body. Provided is an electrical component socket in which the contact is rotated while the connection terminal of the electrical component and the contact portion of the contact are in contact with each other.

According to a second aspect of the present invention, there is provided a contact including a socket body, a first contact member, a second contact member, and a conductive spring member, wherein the first contact member is the A contact portion that is arranged in the socket body so as to be movable in the vertical direction and rotatable about an axis extending in the vertical direction, and that is in contact with a connection terminal of the electric component, and a first engagement that engages with the socket body. And a first contact portion that comes into contact with the conductive spring member, and the second contact member is disposed in the socket body so as to be vertically movable coaxially with the first contact member. A contact portion that contacts a wiring board or a wiring base disposed below the socket body, a second engagement portion that engages the socket body, and a second contact portion that abuts the conductive spring member. And one end of the conductive spring member has the first contact Is in contact with the first contact portion of the wood, the other end portion is brought into contact with the second contact portion of the second contact member, said first
The contact member is formed to urge the contact member upward and the second contact member downward, and the socket body is vertically movably disposed on the socket body, and is urged upward by a spring member. A top plate having a through hole for receiving a contact portion of the contact member, a first engaged portion with which the first engaging portion of the first contact member is engaged with the socket body, and the first contact member A guide portion formed of a synthetic resin material that guides the first contact member so that the first contact member is rotated when the first contact member is moved up and down and a second engaging portion of the second contact member are engaged. A second engaged portion to be fitted is formed, and when the electric component placed on the top plate is pressed downward, the first contact member is pressed downward by the terminal of the electric component, Thereby, the first contact member is guided to the guide portion of the socket body. The electrical component of the connection terminal and the first
There is provided a socket for electric parts, wherein the first contact member is rotated while being in contact with the contact portion of the contact member.

Further, in the invention described in claim 3, in addition to the structure of the invention described in claim 2, a first contact portion of the first contact member and a second contact portion of the second contact member are provided. Is provided at different heights in the vertical direction between adjacent contacts, and an electric component socket is provided.

Further, in the invention described in claim 4, in addition to the structure of the invention described in claim 2 or 3, the second contact member of the contactor is centered on an axis extending vertically in the socket body. And a synthetic resin that is rotatably disposed in the socket body and guides the second contact member so that the second contact member is rotated when the second contact member is moved up and down. There is provided a socket for electric parts, characterized in that a guide portion formed of a material is formed.

[0022]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to FIG.
From now on, referring to FIG.

FIGS. 1 and 2 show an embodiment of an electric component socket according to the present invention. The electric component socket 1 of this embodiment has a performance of an electric component 2 such as an IC package. This electrical component 2
The electrical connection is made between the substantially spherical solder balls 3 arranged in a grid pattern as the connection terminals of 1 and the printed wiring board (not shown) of the measuring instrument.

As shown in FIG. 2, the electrical component socket 1 has a socket body 4 mounted on a wiring board (not shown) via a base 14, and in the socket body 4, As shown in FIGS. 2 and 3, a plate assembly 5 is arranged.

The plate assembly 5 includes plates 5a and 5b, contacts 6 and conductive spring members 11 as will be described later.
And a plate unit 5e composed of
c, 5d, the contactor 6, and the plate unit 5f including the conductive spring member 11.

As shown in FIGS. 2 and 3, the contactor 6 is disposed on the upper side of the first contact member 6a and on the lower side of the first contact member 6a coaxially with the first contact member 6a in the vertical direction. Second
The contact member 6b and the first and second contact members 6a,
6b, and a conductive spring member 11 made of a coil spring made of a metal material having good conductivity.

First contact member 6a and second contact member 6b
2 and 3, there is a contact member 6c and a contact member 6d in which the length of an insertion portion 12 described later is longer than that of the contact member 6c, and a metal material or a metal material having good conductivity is plated. Is a plate-shaped body having a rectangular cross-section formed by sheet-metal processing, which has been subjected to surface treatment to improve conductivity. The contact members 6c and 6d have an insertion portion 12 as shown in FIGS. 4 and 5. The insertion portion 12 is rotatably accommodated in the support holes 8 of the plates 5a to 5d described later.

An engaging portion 10 is formed on one end side of the insertion portion 12. The engagement portion 10 is formed wider than the insertion portion 12, and has plates 5a, 5b, which will be described later,
5c and 5d are rotatably engaged in the accommodation holes 9 and contact members 6c and 6d have plate units 5 to be described later.
It also has a role of preventing escape from e and 5f.
An inclined contact portion 10a having a gradually narrower width is formed at the tip of the engaging portion 10. As shown in FIG.
The conductive spring member 11 competes with 0a.

Further, between the insertion portion 12 and the engagement portion 10,
That is, the distal end portion of the insertion portion 12 on the engagement portion 10 side is twisted by about 45 ° when viewed in the longitudinal direction (the direction perpendicular to the paper surface in FIG. 5), and the twisted portion 12a is formed.

At the other end of the insertion portion 12, the electric component 2
Contact recesses 13 are formed to contact the solder balls. The contact recess 13 is recessed in a semicircular shape, and its radius is such that the contact recess 13 contacts the bottom dead center of the solder ball 3 and its periphery, and the bottom dead center of the solder ball 3 and its periphery are scratched. The diameter of the solder balls 3 is smaller than that of the solder balls 3 in order to prevent the solder balls from being attached.

The structural difference between the contact member 6c and the contact member 6d is only the length of the insertion portion 12 and the other structures are the same.

The plates 5a to 5d are shown in FIGS.
As shown in FIG.
Has a function of guiding and rotating the contactor 6 when is moved up and down. The contactor 6 rotates while rubbing against the plates 5a to 5d as it moves up and down, so that the plates 5a to 5d can be smoothly rotated.
d is made of synthetic resin having a friction coefficient lower than that of the contact 6.

As shown in FIGS. 2 and 3, the plates 5a and 5c are provided with a support hole 8 having a diameter capable of rotatably supporting the contact 6 and adjacent support holes 8 and 8 is provided with a guide hole 8a (guide portion) that is opened in a substantially rectangular shape for rotating the contactor 6 by a predetermined angle. Here, the pitch between the support holes 8 and the guide holes 8a is the same as the pitch of the solder balls 3 of the electric component 2.

Further, the contactor 6 is provided below the guide hole 8a.
An accommodation hole 9 (engaged portion) having a diameter capable of rotatably accommodating the engagement portion 10 is formed.

Further, the lower portions of the plates 5a and 5c are provided with concave void portions 7 in order to improve the moldability and to reduce the contact area between the support hole 8, the guide hole 8a and the contactor 6. Has been formed.

The plates 5b and 5d have the plates 5a and
The support hole 8 is provided at a position corresponding to the support hole 8 of 5c.
A guide hole 8a and a housing hole 9 are formed at positions corresponding to a and the housing hole 9, respectively. Also, plate 5
For the same reason as a and 5c, the void 7 is formed in the upper part.

Here, the plate unit 5e and the plate unit 5f are, when the plate assembly 5 is formed,
The support holes 8 and the guide holes 8a of the plates 5a to 5d are formed so that the support holes 8 of the plate unit 5e or the plate unit 5f and the guide holes 8a of the plate unit 5f or the plate unit 5e are arranged corresponding to each other. There is.

The plate unit 5e includes a contact member 6c in the guide hole 8a of the plate 5a and a guide hole 8a in the plate 5b.
The contact member 6d is inserted into each of the a, and the contact spring 10a (first contact member) of the contact member 6c and the contact member 10a (second contact member) of the contact member 6d facing each other are electrically conductive springs. It is formed by interposing the member 11.

In the plate unit 5f, the contact member 6d is inserted into the guide hole 8a of the plate 5c, and the contact member 6c is inserted into the guide hole 8a of the plate 5d. It is formed by interposing a conductive spring member 11 between the first contact portion) and the contact portion 10a (second contact portion) of the contact member 6c.

Then, the contact member 6d protruding upward from the plate unit 5f is inserted into the support hole 8 of the plate unit 5e (the plates 5a and 5b), and the contact member 6d protruding downward from the plate unit 5e is inserted. Plate unit 5f (Plate 5c
The plate assembly 5 is formed by inserting the plate assembly 5 into the support hole 8 of the plate 5d).

In such a plate assembly 5, as shown in FIG. 3, a second contact member 6b (contact member 6c, 6d) protruding downward from the lower portion of the plate unit 5f is inserted into the socket body 4. By being inserted into the hole 4a and protruding downward from the socket body 4, it is mounted on the socket body 4, and as shown in FIG.
As shown in FIG. 2, a base 14 having an outer shape larger than that of the socket body 4 is disposed below the socket body 4.
A plurality of substrates 15 are stacked on the base 14. The extension terminals 16 having different lengths from the center line of the socket 1 in FIG. 2 are arranged on the respective boards 15, and the extension terminals 16 are arranged on the uppermost board 15 respectively.
The extension terminal portion 16 disposed at the longest length is the longest, and the length is gradually reduced toward the lower substrate 15. Then, the lower ends of the adjacent contactors 6 are sequentially connected to one end of each extension terminal portion 16 arranged on each substrate 15 having a different length, and the other end of each extension terminal portion 16 is connected. Has terminal portions 1 extending downwards, respectively.
7 are integrally formed.

The lowermost end of the terminal portion 17 is inserted into each through hole (not shown) of the printed wiring board and soldered, whereby the contactor 6 connects the extension terminal portion 16 and the terminal portion 17. Each is connected to a printed wiring board. By providing the extension terminal portion 16 in this way, even if the distance between the contacts 6 is extremely small, it is possible to secure a large distance between the terminal portions 17 and facilitate connection. .

Further, on the upper part of the plate assembly 5, a top plate 18 on which the electric component 2 is placed is arranged. Locking arms 19 extending downward are provided on both sides of the top plate 18. And
By engaging the locking claw 20 formed on the lower end portion of the locking arm 19 with the locking projection 21 formed on the inner side surface of the socket body 4, the top plate 18 is prevented from coming off from the socket body 4. In addition to preventing it, the uppermost position of the top plate 18 is restricted. Also, the top plate 1
A guide protrusion 22 extending downward is integrally formed on the lower surface side of the plate 8.
It is fitted in the guide groove 23 formed in a to 5d.
On the outer peripheral side of the guide protrusion 22, as shown in FIG.
An urging spring 24 is provided. The urging force of the urging spring 24 constantly urges the top plate 18 upward, and when a downward pressing force is applied to the top plate 18, the urging spring 24 is provided. The top plate 18 can be moved downward against the biasing force of 24.

Further, the top plate 18 is formed with positioning holes 25 through which the upper ends of the contacts 6 are inserted. Then, when the top plate 18 is at the uppermost position, the contact recess 13 of the contactor 6 is
It does not protrude from the upper surface of the and is located slightly below.

Further, around the top plate 18,
A guide portion 27 for positioning the electric component 2 at a predetermined position is provided.

A cover member 28 is attached to the upper portion of the socket body 4 so as to be rotatable around a pivot pin 29 at the base end thereof. The cover member 28 is biased by a biasing spring 30. Is always urged in the opening direction. The lock lever 3 is attached to the tip of the cover member 28.
1 is rotatably attached to the lock lever 3
A lock claw 33 that is engaged with a lock piece 32 formed on the outer surface of the socket body 4 is formed at the lower end of the cover member 1 in the closed state. Further, on the lower surface of the cover member 28, a component holding portion 34 for pressing the electric component 2 positioned by the guide portion 27 and installed on the upper surface of the top plate 18 is formed in the closed state of the cover member 28. ing.

To mount the electric component 2 in the electric component socket 1, first, the lock lever 31 is rotated clockwise in FIG. 2 to release the engagement between the lock claw 33 and the lock piece 32. , The cover member 28 is opened.

Next, the electric component 2 is attached to the top plate 18
Place on top. At this time, the electric component 2 is guided by the guide portion 27 of the top plate 18,
It is placed in a predetermined position above.

Subsequently, when the cover member 28 is closed against the biasing spring 30, the component pressing portion 34 of the cover member 28 is closed.
Thus, the electric component 2 is pressed. As a result, the top plate 18 is moved downward against the spring 24, and the solder ball 3 of the electric component 2 moves into the contact recess 13 of the first contact member 6a.
Be contacted. After that, when the cover member 28 is further closed, the first contact member 6a is pressed by the solder balls 3 of the electric component 2, and the first contact member 6a moves downward. At this time, the contact member 6c constituting the first contact member 6a is kept in the state where the contact recess 13 is in contact with the solder ball 3.
The twisting portion 12a of the contact member 6d is moved downward in the guide hole 8a of the plate 5a, and the twisting portion 12a of the contact member 6d is moved in the guide hole 8a of the plate 5c. To do. Therefore, the contact concave portion 13 of the contactor 6 makes the surface of the solder ball 13 wiping, so that the oxide film or dust formed on the surface of the solder ball 3 is removed, and reliable electrical contact is realized.

Thereafter, the cover member 28 is further closed,
When the lock claw 33 of the lock lever 31 is engaged with the lock piece 32 of the socket body 4, the mounting of the electric component 2 in the electric component socket 1 is completed. In this state, a predetermined performance test such as a burn-in test is performed. After the test, to mount the next new electrical component 2, first, in the same way as above,
The cover member 28 may be opened to take out the electric component 2 for which the test has been completed, and a new electric component may be mounted therein in the same manner as described above.

Therefore, in the present embodiment, since the guide hole 8a formed in the resin plate assembly 5 comes into contact with the twisted portion 12a of each contact 6, each contact is made. The coefficient of friction with the child 6 can be reduced, and the rotation angle can be increased without increasing the vertical movement amount of each contact 6 (even if the angle of the twisting portion 12a is increased, No malfunction will occur.).

Further, since each contactor 6 is rotated only by the sliding contact with the guide hole 8a in the vertical direction, the oxide film on the surface of each solder ball 3 of the electric component 2 has a simple structure. And dust can be removed.

As in the above embodiment, the plate units 5e and 5e, in which the plate assemblies 5 are vertically stacked in two stages,
Since the contact portions 10a of the adjacent contactors 6 are not interfered with each other by being formed by the f, the adjacent contactors 6 can be formed.
The pitch between can be narrowed. As a result, it is possible to cope with so-called fine-pitch electric parts in which the pitch of the solder balls is narrow. Of course, when the pitch of the solder balls is not as narrow as that of the above-mentioned embodiment, the plate assembly may be formed by one plate unit, and the contactor also has different insertion portions as described above. One kind of contact may be used without preparing a kind. In this case, the overall height of the socket for electric parts can be reduced, and a more inexpensive socket for electric parts can be provided.

The rotating operation of the contact 6 is the same not only on the solder ball 3 side of the electric component 2 but also on the extension terminal 16 side of the base 14 side. That is, when the socket body 4 is mounted on the base 14, the contact recess 1 of the contact 6 protruding downward from the bottom surface of the socket body 4
After contacting one end portion of the extension terminal portion 16, the reference numeral 3 is further pushed by a predetermined amount to be in pressure contact with the extension terminal portion 16. When further pushed in by a predetermined amount, the twisted portion 12a of the contact member 6c moves upward in the guide hole 8a of the plate 5d, and the twisted portion 12a of the contact member 6d moves upward in the guide hole 8a of the plate 5b. While rotating. Therefore, even if an oxide film or the like is formed on the connection portion of the extension terminal portion 16 due to the rotation of the contactor 6, the oxide film or the like can be removed by wiping. It is possible to ensure contact.

Further, the engagement between the engaging portion 10 of the contact 6 and the conductive spring member 11 is performed as shown in FIG. 6 (a).
Contact portions 10a are formed on both sides of the contact portion 10a.
Since the conductive spring member 11 is engaged with the
As shown in (b), the flange portion 10b having a flat surface.
In contrast to engaging the conductive spring member with the flat surface of the flange portion 10b, the contact pressure between the contact member 6 and the conductive spring member 11 can be increased as the contact member 6 is pushed. There is a merit that you can do it.

Further, each contact 6 has an insertion portion 12 and a bulge portion 10, and since the insertion portion 12 has a shape in which a twisted portion 12a is formed at a predetermined twist angle, it is punched. Since it can be manufactured by adding a twisting process later, it is possible to significantly reduce the manufacturing cost as compared with the conventional case of manufacturing by metal processing.

Furthermore, since the plates 5a to 5d having the guide holes 8a for slidingly guiding the contactor 6 are made of a resin material, the moldability is excellent. Also in this respect, the cost can be reduced as compared with the conventional case where the rotating operation is performed by the sliding contact between the metal materials.

In the above embodiment, the present invention is applied to the so-called clamshell type socket, but the present invention is not limited to this, and the present invention can also be applied to an open top type socket. Further, the present invention can be applied to a handler type socket.

Further, the present invention is not limited to the above-mentioned embodiment, but various modifications can be made as necessary.

[0060]

According to the invention described in claim 1 or 2, the contact element formed on the socket body and contacting the connection terminal (solder ball) of the electric component is guided to move the contact element up and down. Since the guide hole (guide portion) for rotating the contactor is made of synthetic resin, it is possible to reduce the frictional force due to the rotation of the contactor. As a result, it is possible to reduce the force that presses the electrical parts from the conventional one, and
Even if the rotation angle of the contactor with respect to the vertical movement amount is increased, the contactor does not malfunction, so that the height of the socket can be reduced.

According to the invention of claim 3, the first contact portion of the first contact member and the second contact portion of the second contact member are:
Since the adjacent contactors are provided at different heights in the vertical direction, the pitch between the adjacent contactors can be narrowed and it is possible to deal with fine-pitch electrical components.

According to the fourth aspect of the present invention, the second contact member of the contact is rotatably arranged in the socket body, and when the second contact member is vertically moved in the socket body. Since the guide portion formed of a synthetic resin material that guides the second contact member is formed so that the second contact member is rotated, the contact portion is connected to the extension terminal portion of the base by the rotation of the contactor. Even if an oxide film or the like is formed, it can be removed by Waipink, and the electrical contact between the contactor and the extension terminal portion can be ensured.

[Brief description of drawings]

FIG. 1 is a plan half sectional view showing an embodiment of an electric component socket according to the present invention.

FIG. 2 is a front sectional view of the socket for electric parts shown in FIG.

FIG. 3 is a cross-sectional view showing a contactor portion of the socket for electric parts shown in FIG.

FIG. 4 is a plan view showing the shape of a contact in one embodiment of the socket for electric parts according to the present invention.

5 is a right side view of the contact shown in FIG.

FIG. 6A is an enlarged plan view showing a contact state between a contactor and a conductive spring member of the electrical component socket according to the present invention, and FIG. 6B is for comparison with the contact state in FIG. Enlarged plan view showing one contact state

FIG. 7 is a front sectional view of a conventional socket for electric parts.

8A is a partially enlarged front view showing a connection state between a contact member and a connection terminal of an IC package in the conventional electrical component socket shown in FIG. 7, and FIG. 8B is a portion showing a rotating state of the contact member. Enlarged front view

[Explanation of symbols]

1 Socket for electrical parts 2 electrical components 3 solder balls 4 socket body 5 plates 6 contacts 8a Guide hole 10 Engagement part 12a torsion part 18 top plate 25 Positioning hole

Claims (4)

[Claims] 1. Electrically connecting to a connection terminal of an electric component,
An electrical component socket for performing a performance test of an electrical component, comprising: a socket body, a socket body movably in the vertical direction and rotatable about an axis extending in the vertical direction, and a conductive spring. A contactor having a contact portion that is urged upward by a member to come into contact with the connection terminal of the electric component, an engagement portion that engages with the socket body, and a contact portion with which the conductive spring member abuts. And a top plate that is vertically movable in the socket body, is biased upward by a spring member, and has a through hole that receives a contact portion of the contactor. An engaged portion with which an engaging portion of the child is engaged, and a guide portion formed of a synthetic resin material for guiding the contactor so as to rotate the contactor when the contactor is moved up and down. Is formed, the top plate When the electric component placed on the board is pressed downward, the contact is pressed downward by the terminal of the electric component, whereby the contact is guided to the guide portion of the socket body, and A socket for an electric component, wherein the contact is rotated while the connection terminal of the electric component is in contact with the contact portion of the contact. 2. Electrically connecting to a connection terminal of an electric component,
An electrical component socket for performing a performance test of an electrical component, comprising a socket body, a first contact member, a second contact member, and a conductive spring member, the first contact member Is disposed in the socket body so as to be movable in the vertical direction and rotatable about an axis extending in the vertical direction, and has a contact portion that comes into contact with a connection terminal of the electric component, and a first portion that engages with the socket body. 1 engagement part and a 1st contact part which contact | abuts with the said electroconductive spring member, The said 2nd contact member has the said socket main body,
A contact portion, which is arranged coaxially with the first contact member and is movable in the vertical direction, is in contact with a wiring board or a wiring base arranged below the socket body; Two engaging portions and a second abutting portion that abuts on the conductive spring member, one end of the conductive spring member abuts on the first abutting portion of the first contact member, and the other end A contact portion formed in contact with a second contact portion of the second contact member to urge the first contact member upward and the second contact member downward, and the socket body. A top plate having a through hole that is vertically movably disposed in the socket, is biased upward by a spring member, and receives a contact portion of the first contact member; When the first engaged member with which the engaging portion is engaged and the first contact member are moved up and down A guide portion for the first contact member is formed of synthetic resin for guiding the first contact member to be rotated, the second the second engagement portion of the second contact member is engaged
When the electric component mounted on the top plate is pressed downward, the terminal of the electric component presses the first contact member downward, whereby the first contact is made. A member is guided by a guide portion of the socket body, and the first contact member is rotated while the connection terminal of the electric component and the contact portion of the first contact member are in contact with each other. Socket for parts. 3. The first contact portion of the first contact member and the second contact portion of the second contact member are provided between adjacent contactors,
The socket for electrical parts according to claim 2, wherein the socket is provided so as to be located at different heights in the vertical direction. 4. The second contact member of the contactor is rotatably disposed on the socket body about an axis extending in the vertical direction, and the socket body has the second contact member vertically moved. The guide portion formed of a synthetic resin material that guides the second contact member is formed so that the second contact member is rotated at a predetermined speed. Socket for electrical parts of.