JP4767745B2 - Socket for electrical parts - Google Patents

Description

  The present invention relates to an electrical component socket for housing an electrical component such as a semiconductor device (hereinafter referred to as an “IC package”), and more particularly to an improvement in an arrangement structure of a rotating shaft that rotatably supports a rotating member. is there.

Conventionally, this type includes the one described in Patent Document 1. In this Patent Document 1, a socket body in which an electrical component having a plurality of terminals is accommodated, a contact pin disposed in the socket body and in contact with and electrically connected to a terminal of the accommodated electrical component, A lever member rotatably provided on the socket body via a rotation shaft, an operation member provided on the socket body so as to be movable up and down and rotating the lever member by being vertically moved; and And a moving member that is moved by the rotation of the lever member, elastically deforms the contact pin, and is brought into and out of contact with the electric component terminal.
Japanese Patent No. 3550789.

  However, in such a conventional one, the rotation shaft that rotatably supports the lever member can be press-fitted into a press-fitting hole formed in the socket body so as not to come out of the socket body, or the rotation shaft Since the E-ring is installed at the end of the arm to prevent the rotation shaft from being removed, press-fitting work using a press-fitting jig is required, and cumbersome installation work for the E-ring is required There was a problem of becoming.

  SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide an electrical component socket that can be easily disposed without requiring a press-fitting operation of a rotating shaft and can be prevented from being removed.

In order to achieve the above object, the invention according to claim 1 is directed to a socket main body in which an electric component having a plurality of terminals is accommodated, and a terminal disposed in the socket main body and in contact with the accommodated terminal of the electric component. A contact pin that is electrically connected to the socket body, a pivot member that is pivotably provided on the socket body via a pivot shaft, and a vertically movable member that is vertically movable on the socket body. In the electrical component socket having the operating member for rotating the rotating member, the rotating shaft can be freely inserted into and removed from an insertion hole formed along the substantially horizontal direction from the outer wall of the socket body toward the inside. A concealing wall is formed along the outer wall of the operating member, the concealing wall covering the end surface of the rotating shaft by covering the end surface of the rotating shaft in the entire range where the operating member can move up and down . Said The moving member is a lever member, and a base end portion side of the lever member is rotatably provided on the socket body by the rotating shaft, and a distal end portion side of the lever member is lowered by the lowering of the operation member. When the lever member is rotated by being pressed, the moving member is moved via the lever member, and the contact pin is elastically deformed by moving the moving member. and characterized in that a socket for electrical parts were.

The invention described in claim 2 is characterized in that, in addition to the configuration described in claim 1 , the concealing wall covers a part of the end surface of the rotating shaft.

According to a third aspect of the present invention, in addition to the configuration according to the first or second aspect , a guide groove extending in the vertical direction is formed in the vicinity of the corner portion on the outer wall of the socket body. An end surface of the rotating shaft is positioned between the corner portion, and a guide protrusion is formed on the concealing wall to be inserted into the guide groove and guided when the operating member moves up and down. Features.

According to the first aspect of the present invention, the operating member is formed with a concealing wall that covers the end surface of the rotating shaft in the entire region where the operating member can move up and down, and the rotating shaft is press-fitted into the insertion hole of the socket body. are inserted and removed freely inserted without being able to be, since it is fit retaining the concealment wall vertically movable operating member, it is not necessary to press-fit in a conventional manner, the press-fitting work is not required at all with press-fitting jig or the like In addition, since it is not necessary to use an E-ring, the assembly can be performed very easily.

  Further, since the rotation shaft is simply inserted into the insertion hole and is not press-fitted, the rotation shaft can be inserted so as to rotate somewhat within the insertion hole. Along with this, the rotation shaft rotates somewhat, so that wear of the rotation shaft can be reduced.

According to the first aspect of the present invention, when the present invention is applied to the rotating shaft of the lever member as the rotating member, a large force acts particularly on the rotating shaft of the lever member. It is extremely effective to reduce the wear of the rotating shaft.

According to the second aspect of the present invention, if a part of the end surface of the rotating shaft is covered with the concealing wall, the entire rotating end surface of the rotating shaft is covered with the concealing wall of the operation member. The area of the concealing wall can be reduced after the shaft is secured.

According to the third aspect of the present invention, since the end surface of the rotation shaft is located between the guide groove and the corner portion, when the lever member is used as the rotation shaft, the base of the lever member is Since the end portion can be arranged as close as possible to the corner portion of the socket body, the lever member can be formed as long as possible, and the pressing force on the operation member can be reduced to lower the moving member. Further, by forming the guide groove in the vicinity of the corner portion, the interval between the pair of guide grooves can be widened, and the guide can be performed satisfactorily.

  Embodiments of the present invention will be described below.

  1 to 6 show an embodiment of the present invention.

  First, the configuration will be described. Reference numeral 11 in the figure denotes an IC socket as an “electrical component socket”. The IC socket 11 accommodates an IC package 12 as an “electrical component”, and the IC package 12 is not shown. This is for conducting a burn-in test or the like of the IC package 12 by being electrically connected to the wiring board.

  As shown in FIG. 6, the IC package 12 has a plurality of substantially spherical solder balls 12 b as “terminals” formed on the lower surface of a package body 12 a as a square “electrical component body”.

  On the other hand, the IC socket 11 is provided with a plurality of contact pins 15 that are electrically connected to the IC package 12 in the socket body 14 and a moving member 16 that elastically deforms the contact pins 15 is arranged to be movable up and down. Further, an operating member 18 that moves the moving member 16 up and down via a lever member 17 is arranged to be movable up and down.

  The contact pin 15 is press-fitted and disposed in the base portion 14a of the socket body 14, the lead portion 15a is extended downward from the base portion 14a, inserted into the wiring board, and soldered, and the base portion 14a. A pair of elastic pieces 15b are extended upward from the upper ends, and contact portions 15c are formed at the upper ends of the elastic pieces 15b. The pair of elastic pieces 15b are opened and closed when the moving member 16 is moved up and down to sandwich the solder ball 12b or to be separated.

  Further, as shown in FIG. 2, the moving member 16 has a plate shape, is disposed on the upper side of the base portion 14 a of the socket body 14 so as to be movable up and down, and is urged upward by a spring 19. As shown in FIG. 5, the moving member 16 has a plurality of through holes 16a corresponding to the plurality of contact pins 15, and a pair of elastic pieces 15b of the contact pins 15 are formed in the through holes 16a. Has been inserted. The elastic pieces 15b are formed with protrusions 15d, and the protrusions 15d are configured to be pushed by cam portions 16b formed on the inner wall of the through hole 16a. When moved, from the state shown in FIG. 5A to the state shown in FIG. 5B, the protrusion 15d of the elastic piece 15b is pressed by the cam portion 16b, and the pair of elastic pieces 15b are elastically deformed. The pair of contact portions 15c are opened, and the solder ball 12b is inserted between them.

  The moving member 16 is moved up and down by turning a lever member 17 as a “turning member”. The lever member 17 is made of metal and has a long plate shape as shown in FIGS. 1, 3, and 4, and the base end portion 17 a is rotatably attached to the socket body 14 via the rotation shaft 20. The distal end portion 17b is pressed by the operation member 18 and rotated downward.

  Further, as shown in FIG. 1, the lever members 17 are arranged in pairs on opposite sides of the rectangular IC socket 11 in plan view, and the base end portions 17a are sockets as shown in FIG. The rotation shaft 20 is inserted into a through hole 17c formed in the base end portion 17a, which is located in the vicinity of the corner portion 14b of the main body 14. Then, as shown in FIG. 4, a pressing portion 17d is formed in the vicinity of the base end portion 17a, the pressing portion 17d abuts on the upper surface portion of the moving member 16, and the lever member 17 rotates downward. By being moved, the pressing member 17d causes the moving member 16 to be lowered against the biasing force of the spring 19.

  As shown in FIG. 3, the base end portion 17a of the lever member 17 is inserted into a groove portion 14f formed in the socket body 14, and the rotating shaft 20 is inserted into the through hole 17c from the side.

  More specifically, as shown in FIG. 3, the rotation shaft 20 is inserted into an insertion hole 14 d formed along the substantially horizontal direction from the outer wall 14 c of the socket body 14 toward the inside. The end surface 20a of the rotating shaft 20 is located between the corner portion 14b of the socket body 14 and the guide groove 14e along the vertical direction (see FIG. 2).

  As shown in FIGS. 1 and 2, the operation member 18 has a frame shape in plan view, and has an opening 18a penetrating in the vertical direction. The IC package 12 is mounted on the socket body 14 through the opening 18a. Or can be removed from the socket body 14.

  As shown in FIG. 3, the operation member 18 is disposed so as to be movable up and down with respect to the socket body 14, and a spring 21 for urging the operation member 18 upward is disposed. It is configured to stop at the highest position shown in FIG. 4 by the locking means.

  Further, a concealing wall 18 b that covers the end surface 20 a of the rotating shaft 20 is formed on the operation member 18 so as to extend downward along the outer wall 14 c of the socket body 14. As shown in FIGS. 2 and 3, the concealing wall 18 b covers a part (semicircle) of the circular end surface 20 a of the rotating shaft 20. On the inner surface side of the concealing wall 18b, a guide projection (not shown) is formed which is guided by being inserted into a guide groove 14e formed on the outer wall 14c of the socket body 14.

  In FIG. 2, reference numeral 22 denotes a guide member for guiding the IC package 12 to a predetermined position when the IC package 12 is accommodated, and reference numeral 23 denotes the IC package 12 that is rotated and rotated by the operation member 18 to hold the accommodated IC package 12. The latch member 24 is a locate board that guides the lead portion 15a of the contact pin 15 to a predetermined position.

  Next, the operation will be described.

  First, when the IC package 12 is accommodated, the operation member 18 disposed on the wiring board is pressed downward by an automatic machine, and the operation member 18 is shown in FIG. 4 against the urging force of the spring 21. Lower from state.

  By the lowering of the operation member 18, the distal end portion 17 b of each lever member 17 is pressed downward, and the lever member 17 is rotated downward about the rotation shaft 20. Then, it is pressed by the pressing portion 17 d of the lever member 17, and the moving member 16 is lowered by the urging force of the spring 19, and the protruding portions of the two elastic pieces 15 b of the contact pin 15 by the cam portion 16 b of the moving member 16. 15d is pressed and a pair of contact part 15c is opened as shown in FIG.5 (b).

  From this state, the IC package 12 is conveyed by an automatic machine and guided by the guide member 22, and the IC package 12 is accommodated in a predetermined position on the socket body 14. Thereby, each solder ball 12b is inserted between each pair of contact portions 15c.

  Thereafter, when the pressing force applied to the operating member 18 by the automatic machine is released, the operating member 18 rises due to the biasing force of the spring 21, and the pressing force applied to the moving member 16 by the pressing portion 17 d of the lever member 17 is released. Is raised by the spring 19.

  As the moving member 16 is lifted, the pressing force of the contact pin 15 against the pair of elastic pieces 15b by the cam portion 16b is released, the pair of elastic pieces 15b are closed, and the solder balls 12b are sandwiched by the pair of contact portions 15c.

  As a result, the IC package 12 is electrically connected to the wiring board via the contact pins 15 and a burn-in test is performed.

  In such a case, the rotary shaft 20 is inserted without being press-fitted into the insertion hole 14d of the socket body 14, and is prevented from being removed by the concealing wall 18b of the operation member 18 that moves up and down. Thus, since it is not necessary to press-fit, there is no need for press-fitting work using a press-fitting jig or the like, and it is not necessary to use an E-ring, so that assembly can be performed very easily.

  Further, since the rotation shaft 20 is simply inserted into the insertion hole 14d and is not press-fitted, the rotation shaft 20 can be inserted so as to rotate somewhat within the insertion hole 14d. With this rotation, the rotation shaft 20 rotates somewhat, so that wear of the rotation shaft 20 can be reduced.

  Furthermore, since the insertion hole 14d into which the rotating shaft 20 is inserted is formed between the corner 14b of the socket body 14 and the guide groove 14e, the base end portion 17a of the lever member 17 is made as much as possible. Since the lever member 17 can be formed as long as possible, and the moving member 16 can be lowered, the pressing force on the operating member 18 can be reduced. Further, by forming the guide groove 14e in the vicinity of the corner portion 14b, the distance between the pair of guide grooves 14e can be widened, and the guide can be performed satisfactorily.

  Moreover, since the concealing wall 18b covers a part (semicircle) of the circular end surface 20a of the rotating shaft 20 as shown in FIG. 2, the entire end surface 20a of the rotating shaft 20 is covered. Compared with the case where the operating member 18 is covered with the concealing wall 18b, the rotation shaft 20 can be prevented from being removed, and the area of the concealing wall 18b can be reduced.

In the above embodiment, a part of the circular end surface 20a of the rotating shaft 20 is covered with the concealing wall 18b. However, the present invention is not limited to this, and the entire end surface 20a may be covered.

1 is a plan view of an IC socket according to an embodiment of the present invention. It is the front view which cut the half of IC socket concerning the embodiment. It is the front view which cut the rotating shaft arrangement | positioning part of the IC socket which concerns on the embodiment. It is sectional drawing of the lever member arrangement | positioning part of the IC socket which concerns on the same embodiment. It is a figure which shows the operation | movement of the contact pin which concerns on the embodiment, (a) is a figure which shows the state which closed a pair of contact part of a contact pin, (b) is the state which opened the pair of contact part of the contact pin. FIG. It is a figure which shows IC package, (a) is a front view of IC package, (b) is a bottom view of IC package.

Explanation of symbols

11 IC socket (socket for electrical parts)
12 IC package (electrical parts)
12a Package body
12b Solder ball (terminal)
14 Socket body
14a Base part
14b Corner
14c outer wall
14d insertion hole
15 Contact pin
15a Lead part
15b Elastic piece
15c Contact part
15d protrusion
16 Moving member
16a Through hole
16b Cam part
17 Lever member (rotating member)
17a Base end
17b Tip
17c Through hole
17d Pressing part
18 Operation parts
18b concealment wall
20 Rotating axis
20a end face
22 Guide member
23 Latch member

Claims (3)

A socket body that houses an electrical component having a plurality of terminals;
A contact pin disposed in the socket body and in contact with a terminal of the electrical component housed therein to be electrically connected;
A rotating member provided rotatably on the socket body via a rotating shaft;
In the socket for an electrical component, which is provided on the socket main body so as to freely move up and down, and has an operation member that turns the turning member by being moved up and down.
The pivot shaft is inserted and removed freely inserted from the outer wall of the socket body into the insertion hole formed along a substantially horizontal direction toward the inside,
The operation member is formed with a concealing wall along the outer wall to prevent the rotation shaft from coming off by covering the end surface of the rotation shaft in the entire region where the operation member can move up and down .
The rotating member is a lever member, and a base end side of the lever member is rotatably provided on the socket body by the rotating shaft, and a distal end side of the lever member is lowered by the operating member. So that the contact member is elastically deformed by moving the moving member through the lever member when the lever member is rotated downward and the lever member is rotated. A socket for electrical parts, characterized in that it is configured . The electrical component socket according to claim 1, wherein the concealing wall covers a part of an end surface of the rotating shaft. A guide groove extending in the vertical direction is formed in the vicinity of the corner portion on the outer wall of the socket body, and an end surface of the rotating shaft is located between the guide groove and the corner portion, and the concealing wall The electrical component socket according to claim 1, wherein a guide protrusion is formed to be inserted into the guide groove and guided when the operation member moves up and down.

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