Sockets for electrical components

Abstract

To improve the operational reliability of electrical component sockets even when the number of contact pins is increased. [Solution] The lower slide plate is movable laterally relative to the base member, and the upper slide plate is provided so as to overlap the upper side of the lower slide plate, and the upper slide plate is movable laterally relative to the base member, and a contact pin is provided extending from the upper housing hole of the upper slide plate to the lower housing hole of the lower slide plate, and the link mechanism moves the upper slide plate and the lower slide plate synchronously in different lateral directions from each other to open and close the contact pin.

Description

Technical Field

[0001] The present invention relates to a socket for electrical components.

Background Art

[0002] Conventionally, when performing an electrical inspection of an electrical component such as a BGA (Ball Grid Array) package, for example, a socket for electrical components as shown in Patent Document 1 is used. The socket for electrical components according to the prior art includes a base member (referred to as a socket body in Patent Document 1), and a lattice-shaped moving plate is provided on the base member so as to be movable in the lateral direction. A clamping-type contact pin is accommodated in the accommodation hole of the moving plate, and the contact pin clamps the electrode of the electrical component by an opening / closing operation. The contact pin opens and closes in conjunction with (follows) the lateral movement of the moving plate.

[0003] An operating member is provided on the upper side of the base member so as to be movable up and down, and a wedge-shaped cam member for moving the moving plate in the lateral direction is provided on the operating member. By the cam member pushing the corner of the moving plate, the moving plate is moved in the lateral direction to open and close the contact pin.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] In recent years, with the increasing size of electrical components such as BGA packages, the number of electrodes (terminals) on these components has also increased, and consequently, the number of contact pins in electrical component sockets has also tended to increase. However, with an increase in the number of contact pins, there are concerns that the frictional force between the cam member and the corner of the moving plate may become excessive, leading to malfunctions in the electrical component socket.

[0006] Therefore, the object of the present invention is to provide an electrical component socket that can improve the operational reliability of the electrical component socket even when the number of contact pins is increased. [Means for solving the problem]

[0007] One embodiment of the electrical component socket of the present invention is: A lower slide plate that is movable laterally relative to the base member and has a lower housing hole formed through it, An upper slide plate is provided so as to overlap the upper side of the lower slide plate, is movable laterally relative to the base member, and has an upper housing hole formed through it at a position corresponding to the lower housing hole, A contact pin is provided extending from the upper housing hole to the lower housing hole, electrically connectable to the electrode of the first electrical component, and whose upper end clamps the electrode of the second electrical component by opening and closing. The system includes a link mechanism that moves the upper slide plate and the lower slide plate synchronously in different lateral directions to open and close the contact pin. [Effects of the Invention]

[0008] According to the present invention, the operational reliability of electrical component sockets can be improved even when the number of contact pins is increased. [Brief explanation of the drawing]

[0009] [Figure 1] Figure 1 is a schematic perspective view of an electrical component socket according to this embodiment. [Figure 2]Figure 2 is a schematic perspective view of an electrical component socket according to this embodiment, viewed from below. [Figure 3] Figure 3 is a schematic perspective view of an electrical component socket according to this embodiment, in which the upper fixing plate is omitted from the state shown in Figure 1. [Figure 4] Figure 4 is a schematic perspective view of an electrical component socket according to this embodiment, in which the upper base member is omitted from the state shown in Figure 3. [Figure 5] Figure 5 is a schematic perspective view of the electrical component socket according to this embodiment, in which the lower slide plate and the first connecting link are omitted from the state shown in Figure 4. [Figure 6] Figure 6 is a schematic perspective view illustrating the relationship between the probe pin and the contact pin. [Figure 7] Figure 7 is a schematic cross-sectional view of an electrical component socket according to this embodiment, showing the contact pins in an open position. [Figure 8] Figure 8 is an enlarged view of section VIII in Figure 7. [Figure 9] Figure 9 is a schematic cross-sectional view of an electrical component socket according to this embodiment, showing the contact pins in a closed state. [Figure 10] Figure 10 is an enlarged view of section X in Figure 9. [Figure 11] Figure 11 is a conceptual diagram illustrating a modified example 1 of this embodiment of a socket for electrical components. [Figure 12] Figure 12 is a conceptual diagram illustrating a modified example 2 of this embodiment of a socket for electrical components. [Modes for carrying out the invention]

[0010] The following description of this embodiment will be made with reference to the drawings. In the specification and claims of this application, the lateral direction refers to a predetermined horizontal direction perpendicular to the thickness direction (vertical direction) of the base member. In the specification of this application, the X direction refers to one of the horizontal directions, which is the width direction of the electrical component socket. The Y direction refers to a horizontal direction perpendicular to the X direction. The "clockwise direction" refers to the clockwise direction toward Figure 7, Figure 9, Figure 11, or Figure 12. The "counterclockwise direction" refers to the counterclockwise direction toward Figure 7, Figure 9, Figure 11, or Figure 12. In the drawings, "CD" refers to the lateral direction, "CDa" refers to one side of the lateral direction, "CDb" refers to the other side of the lateral direction, "UD" refers to the upward direction, and "DD" refers to the downward direction.

[0011] The specific configuration of the electrical component socket 10 according to this embodiment will be described with reference to Figures 1 to 12. Figures 1 and 2 are schematic perspective views of the electrical component socket 10 according to this embodiment, with Figure 2 being a perspective view from below. Figures 3 to 5 are schematic perspective views of the electrical component socket 10 according to this embodiment, with Figure 3 showing the state shown in Figure 1 with the upper fixing plate 54 omitted. Figure 4 shows the state shown in Figure 3 with the upper base member 16 omitted, and Figure 5 shows the state shown in Figure 4 with the lower slide plate 28 and the first connecting link 44 omitted. Figure 6 is a schematic perspective view illustrating the relationship between the probe pin 20 and the contact pin 32.

[0012] Figure 7 is a schematic cross-sectional view of the electrical component socket 10 according to this embodiment, showing the contact pin 32 in the open position. Figure 8 is an enlarged view of section VIII in Figure 7. Figure 9 is a schematic cross-sectional view of the electrical component socket 10 according to this embodiment, showing the contact pin 32 in the closed position. Figure 10 is an enlarged view of section X in Figure 9.

[0013] As shown in FIGS. 1 and 2, the socket 10 for electrical components according to the present embodiment is disposed at a predetermined position of a wiring board W (see FIGS. 7 and 8) as a first electrical component connected to an inspection device (not shown). The socket 10 for electrical components is used for electrical inspections such as the bar inspection of an IC (Integrated Circuit) package P as a second electrical component. The socket 10 for electrical components is formed in a rectangular shape in plan view. In the present embodiment, the IC package P is, for example, a BGA (Ball Grid Array) package. For the sake of convenience of explanation, only a part of all the electrodes Wa (see FIGS. 7 and 8) of the wiring board W is shown, and only a part of all the electrodes (terminals) Pa of the IC package P is shown. In the present embodiment, the diagonal direction (the direction inclined 45 degrees with respect to the X direction and the Y direction) of the socket 10 for electrical components is taken as the lateral direction, but the X direction or the Y direction may be taken as the lateral direction.

[0014] As shown in FIGS. 1 to 3, the socket 10 for electrical components includes a base member 12 having a rectangular shape in plan view, and an accommodation space 12s is formed in the central portion of the base member 12. The base member 12 has a lower base member 14 having a rectangular shape in plan view made of an insulating material, and an upper base member 16 having a rectangular shape in plan view fixed on the upper side of the lower base member 14 and made of an insulating material.

[0015] As shown in FIG. 2, a probe holder 18 is provided in the accommodation space 12s of the base member 12, and the probe holder 18 is made of an insulating material. A plurality of holding holes 18h penetrate through the probe holder 18, and the plurality of holding holes 18h are arranged in a matrix. The number of the holding holes 18h of the probe holder 18 is the same as the number of the electrodes Wa (the electrodes Pa of the IC package P) of the wiring board W. For the sake of convenience of explanation, only a part of all the holding holes 18h is shown.

[0016] As shown in Figures 2, 6 to 8, each holding hole 18h of the probe holder 18 is provided with a probe pin 20, and each probe pin 20 is made of a conductive material such as metal. Multiple probe pins 20 are arranged in a matrix. The number of probe pins 20 is the same as the number of electrodes Wa on the wiring board W (electrodes Pa on the IC package P), but for the sake of explanation, only a portion of all probe pins 20 are shown in the illustration.

[0017] As shown in Figures 6 and 8, each probe pin 20 has a pipe-shaped probe pin body 22 and an upper contact member 24 that is movable vertically on the upper end side of the probe pin body 22. Each probe pin 20 has a lower contact member 26 that is movable vertically on the lower end side of the probe pin body 22 and can contact each electrode Wa of the wiring board W, and a coil spring (not shown) provided inside the probe pin body 22. The upper contact member 24 corresponds to the upper end of the probe pin 20 and is biased upward by the coil spring. The lower contact member 26 corresponds to the lower end of the probe pin 20 and is biased downward by the coil spring. The lower contact member 26 may be the lower end of the coil spring. The entire probe pin 20 may be made of a coil spring.

[0018] As shown in Figures 4 and 7, a rectangular lower slide plate 28 is provided on the upper side of the probe holder 18, and the lower slide plate 28 is movable laterally relative to the base member 12. The lower slide plate 28 is made of an insulating material.

[0019] As shown in Figures 7 to 10, the lower slide plate 28 has multiple lower housing holes 28h formed through it, and the multiple lower housing holes 28h are arranged in a matrix. Each lower housing hole 28h of the lower slide plate 28 is located in a position corresponding to (aligned with) each holding hole 18h of the probe holder 18. The number of lower housing holes 28h of the lower slide plate 28 is the same as the number of electrodes Wa of the wiring board W (electrodes Pa of the IC package P), but for the sake of explanation, only a portion of all the lower housing holes 28h are shown. A pair of recesses 28d are formed on the inner wall surface of each lower housing hole 28h of the lower slide plate 28, and the pair of recesses 28d face each other in a direction perpendicular to the lateral direction.

[0020] As shown in Figures 3, 4, and 7, the upper slide plate 30 is positioned above the lower slide plate 28 so as to overlap it, and the upper slide plate 30 is movable laterally relative to the base member 12. The upper slide plate 30 is made of an insulating material. The upper slide plate 30 also has a set area SA for setting the IC package P.

[0021] As shown in Figures 7 to 10, the upper slide plate 30 has multiple upper housing holes 30h formed through it, and the multiple upper housing holes 30h are arranged in a matrix. Each upper housing hole 30h of the upper slide plate 30 is located in a position corresponding to (aligned with) each lower housing hole 28h of the lower slide plate 28. The upper end of each upper housing hole 30h of the upper slide plate 30 opens into the set area SA. The number of upper housing holes 30h of the upper slide plate 30 is the same as the number of electrodes Wa of the wiring board W (electrodes Pa of the IC package P), but for the sake of explanation, only a portion of all upper housing holes 30h are shown. A pair of recesses 30d are formed on the inner wall surface of each upper housing hole 30h of the upper slide plate 30, and the pair of recesses 30d face each other in a direction perpendicular to the lateral direction.

[0022] As shown in Figure 8, clamp-type contact pins 32 are provided extending from each upper housing hole 30h of the upper slide plate 30 to each lower housing hole 28h of the lower slide plate 28. Each contact pin 32, which clamps each electrode Pa of the IC package P through opening and closing operations, is made of a conductive material such as metal. Multiple contact pins 32 are arranged in a matrix. The number of contact pins 32 is the same as the number of electrodes Wa of the wiring board W (electrodes Pa of the IC package P), but for the sake of explanation, only a portion of all contact pins 32 are shown in the figure.

[0023] As shown in Figures 6 and 8, each contact pin 32 is formed in a U-shape or V-shape, having a pair of clamping pieces 34, 36. On the upper part of one of the pair of clamping pieces 34, 36, both sides perpendicular to the lateral direction are provided with projection-shaped upper locking portions 34b that engage with the recesses 30d of each upper housing hole 30h of the upper slide plate 30. On the lower part of the other clamping piece 36 of the pair of clamping pieces 34, 36, both sides perpendicular to the lateral direction are provided with projection-shaped lower locking portions 36b that engage with the recesses 28d of each lower housing hole 28h of the lower slide plate 28.

[0024] Each contact pin 32 is supported from below by each probe pin 20, and the lower end of each contact pin 32 is in contact with the upper contact member 24 of each probe pin 20. An engaging portion 32h is formed at the lower end of each contact pin 32 for engaging with the upper contact member 24 of each probe pin 20. Each contact pin 32 is electrically connected to each electrode Wa of the wiring board W via each probe pin 20.

[0025] The contact pin 32 is not limited to being formed in a U-shape or V-shape, but may be formed in an I-shape, for example. In this case, the contact pin 32 cooperates with a part of the inner wall surface of the upper housing hole 30h of the upper slide plate 30 to clamp the electrode Pa of the IC package P. The contact pin 32 is provided with a projection-like locking portion (not shown) that engages with the recess 30d of the upper housing hole 30h of the upper slide plate 30 or the recess 28d of the lower housing hole 28h of the lower slide plate 28.

[0026] As shown in Figures 3 to 5, the electrical component socket 10 is equipped with a link mechanism 38 that moves the upper slide plate 30 and the lower slide plate 28 synchronously and by the same amount in different lateral directions to open and close a plurality of contact pins 32. The specific configuration of the link mechanism 38 is as follows.

[0027] As shown in Figures 3 to 5, 7, and 9, on both sides of the lower slide plate 28 (upper slide plate 30) of the base member 12, swing links 40 are provided so as to be able to swing around a horizontal swing axis 42c. The pair of swing links 40 swing synchronously around the swing axis 42c while maintaining a parallel state. Each swing link 40 is made of insulating material. Each swing axis 42c is the axis 42c of a swing shaft 42 fixed to one side of the lower slide plate 28 of the base member 12 in the lateral direction. Each swing shaft 42 extends in a direction perpendicular to the lateral direction.

[0028] The pair of swing links 40 swing counterclockwise when opening the multiple contact pins 32, and swing clockwise when closing the multiple contact pins 32. Alternatively, the pair of swing links 40 may swing clockwise when opening the multiple contact pins 32, and counterclockwise when closing the multiple contact pins 32.

[0029] As shown in Figures 3 and 4, a pair of first connecting links 44 are provided at both lateral ends of the lower slide plate 28, and each pair of first connecting links 44 is spaced apart in a direction perpendicular to the lateral direction. Each pair of first connecting links 44 is made of an insulating material and is integrally molded with the lower slide plate 28. Each pair of first connecting links 44 may be considered as part of the lower slide plate 28.

[0030] As shown in Figure 4, each pair of first connecting links 44 is connected to one end of the corresponding rocking link 40 via a first connecting shaft 46 so as to be movable in the vertical direction. Each first connecting shaft 46 is fixed to one end of each rocking link 40. Each pair of first connecting links 44 has a through hole 44h formed through it for inserting the first connecting shaft 46 so as to be movable in the vertical direction, and each through hole 44h is an elongated or elliptical hole extending in the vertical direction.

[0031] Each pair of first connecting links 44 is connected to the middle portion of the corresponding oscillating link 40 via an oscillating shaft 42 so as to be able to move laterally relative to it. Each pair of first connecting links 44 has a through hole 44v formed through it for inserting the oscillating shaft 42, and each through hole 44v is a laterally elongated or elliptical hole.

[0032] As shown in Figures 3 to 5, a pair of second connecting links 48 are provided at both lateral ends of the upper slide plate 30, and each pair of second connecting links 48 is spaced apart in a direction perpendicular to the lateral direction. Each pair of second connecting links 48 is made of insulating material and is integrally molded with the upper slide plate 30. Each pair of second connecting links 48 may be considered as part of the upper slide plate 30.

[0033] As shown in Figure 5, each pair of second connecting links 48 is connected to the other end of the corresponding oscillating link 40 via a second connecting shaft 50 so as to be movable in the vertical direction. Each second connecting shaft 50 is fixed to the other end of each oscillating link 40. Each pair of second connecting links 48 has a through hole 48h formed through it for inserting the second connecting shaft 50 so as to be movable in the vertical direction, and each through hole 48h is an elongated or elliptical hole extending in the vertical direction.

[0034] Each pair of second connecting links 48 is connected to the intermediate portion of the corresponding oscillating link 40 via an oscillating shaft 42 so as to be able to move laterally relative to it. Each pair of second connecting links 48 has a through hole 48v formed through it for inserting the oscillating shaft 42, and each through hole 48v is a laterally elongated or elliptical hole.

[0035] As shown in Figures 3 to 5, 7, and 9, each oscillating link 40 is provided with a drive lever 52, and the downward action of each drive lever 52 causes each oscillating link 40 to oscillate. Each drive lever 52 is made of an insulating material and is integrally molded with each oscillating link 40. Each drive lever 52 may also be considered as part of each oscillating link 40.

[0036] One drive lever 52 protrudes laterally from one of the swing links 40, and the downward movement of the drive lever 52 causes the pair of swing links 40 to swing clockwise. The other drive lever 52 protrudes laterally from the other swing link 40, and the downward movement of the other drive lever 52 causes the pair of swing links 40 to swing counterclockwise. Note that the link mechanism 38 may omit one of the pair of drive levers 52.

[0037] As shown in Figures 7 and 9, a first coil spring (not shown) may be provided between one drive lever 52 and the base member 12 as a first biasing member that biases one drive lever 52 in the direction of pushing it upward. In other words, a first coil spring may be provided between one drive lever 52 and the base member 12 as a first biasing member that biases a pair of swing links 40 in the counterclockwise direction. Alternatively, a first coil spring may be provided between the inner wall surface of the housing space 12s of the base member 12 and the other lateral side surface of the lower slide plate 28.

[0038] A second coil spring (not shown) may be provided between the other drive lever 52 and the base member 12 as a second biasing member that biases the other drive lever 52 in the upward direction. In other words, a second coil spring may be provided between the other drive lever 52 and the base member 12 as a second biasing member that biases the pair of swing links 40 in the clockwise direction. Alternatively, a second coil spring may be provided between the inner wall surface of the housing space 12s of the base member 12 and one lateral side surface of the upper slide plate 30.

[0039] As shown in Figures 1, 7, and 9, a rectangular upper fixing plate 54 is fixed to the upper surface of the base member 12. The upper fixing plate 54 covers the opening of the housing space 12s of the base member 12 and is made of an insulating material. A rectangular first opening 54a is formed in the upper fixing plate 54 at a position corresponding to the set area SA of the upper slide plate 30. The first opening 54a of the upper fixing plate 54 guides the IC package P to the set area SA of the upper slide plate 30. A rectangular second opening 54b is formed in the upper fixing plate 54 at a position corresponding to each drive lever 52 for operating each drive lever 52.

[0040] Next, the operation of the electrical component socket 10 according to this embodiment will be described.

[0041] As shown in Figures 7 and 8, the electrical component socket 10 is positioned at a predetermined location on the wiring board W. Then, the lower contact members 26 of each probe pin 20 come into contact with each electrode Wa of the wiring board W and retract upward relative to the lower surface of the probe holder 18.

[0042] Next, the other drive lever 52 is pressed down, causing the pair of swing links 40 to swing counterclockwise. This moves the upper slide plate 30 to the other side laterally, and the lower slide plate 28 to the one side laterally. As a result, each contact pin 32 opens, and the distance between each pair of clamping pieces 34, 36 widens. This allows the IC package P to be set in the set area SA of the upper slide plate 30 with each electrode Pa of the IC package P housed in the upper housing holes 30h of the upper slide plate 30.

[0043] Subsequently, by pressing down one of the drive levers 52, the pair of swing links 40 are swung clockwise, causing the upper slide plate 30 to move to one side laterally and the lower slide plate 28 to move to the other side laterally. As a result, each contact pin 32 closes, and each pair of clamping pieces 34, 36 clamps each electrode Pa of the IC package P. This allows each electrode Wa of the wiring board W to be electrically connected to each electrode Pa of the IC package P, enabling the inspection device to perform an electrical inspection of the IC package P.

[0044] Referring to Figure 11, the main configuration of the electrical component socket 10A according to Modification 1 of this embodiment will be described. Figure 11 is a conceptual diagram illustrating the electrical component socket 10A according to Modification 1 of this embodiment.

[0045] As shown in Figure 11, a first coil spring 56 is provided between the inner wall surface of the housing space 12s of the base member 12 and the other lateral side surface of the lower slide plate 28 as a first biasing member that biases the pair of swing links 40 in a counterclockwise direction. A second coil spring 58 is provided between the inner wall surface of the housing space 12s of the base member 12 and the one lateral side surface of the upper slide plate 30 as a second biasing member that biases the pair of swing links 40 in a clockwise direction.

[0046] The base member 12 is provided with an actuation member 60 that can move up and down to press down one of the drive levers 52. In the case of the electrical component socket 10A, the other drive lever 52 is omitted from the link mechanism 38.

[0047] In Figure 11, the upper slide plate 30 and the lower slide plate 28 are conceptually illustrated, but the upper slide plate 30 is positioned overlapping the lower slide plate 28. The link mechanism 38 is positioned so as not to interfere with the base member 12.

[0048] With the above configuration, by pressing the actuating member 60 downwards, the drive lever 52 is pushed down, causing the pair of swing links 40 to swing clockwise against the biasing force of the first coil spring 56. As a result, the upper slide plate 30 moves to one side in the lateral direction, and the lower slide plate 28 moves to the other side in the lateral direction, thereby closing each contact pin 32.

[0049] By releasing the pressing operation of the operating member 60, the biasing force of the first coil spring 56 causes the pair of swing links 40 to swing counterclockwise. As a result, the operating member 60 rises, the upper slide plate 30 moves to the other side in the lateral direction, and the lower slide plate 28 moves to one side in the lateral direction, allowing each contact pin 32 to be opened.

[0050] Referring to Figure 12, the main configuration of the electrical component socket 10B according to Modification 2 of this embodiment will be described. Figure 12 is a conceptual diagram illustrating the electrical component socket 10B according to Modification 2 of this embodiment.

[0051] As shown in Figure 12, the electrical component socket 10B, like the electrical component socket 10A (see Figure 11), is equipped with a first coil spring 56 and a second coil spring 58. One drive lever 52 protrudes laterally from one of the oscillating links 40, and the downward movement of the one drive lever 52 causes the pair of oscillating links 40 to oscillate clockwise. The other drive lever 52 protrudes laterally from the other oscillating link 40, and the downward movement of the other drive lever 52 causes the pair of oscillating links 40 to oscillate clockwise.

[0052] A cover member 62 is provided above the base member 12 so as to be able to move up and down. The cover member 62 has an operating part 64 that presses down each of the pair of drive levers 52. In other words, the cover member 62 corresponds to an operating member that presses down the pair of drive levers 52.

[0053] In Figure 12, the upper slide plate 30 and the lower slide plate 28 are conceptually illustrated, but the upper slide plate 30 is positioned overlapping the lower slide plate 28. The link mechanism 38 is positioned so as not to interfere with the base member 12.

[0054] With the above configuration, by pressing down the cover member 62, the pair of drive levers 52 are pushed down, causing the pair of swing links 40 to swing clockwise against the biasing force of the first coil spring 56. As a result, the upper slide plate 30 moves to one side in the lateral direction, and the lower slide plate 28 moves to the other side in the lateral direction, thereby closing each contact pin 32.

[0055] By releasing the pressing operation on the cover member 62, the biasing force of the first coil spring 56 causes the pair of swing links 40 to swing counterclockwise. As a result, the cover member 62 rises, the upper slide plate 30 moves to the other side in the lateral direction, and the lower slide plate 28 moves to one side in the lateral direction, allowing each contact pin 32 to be opened.

[0056] According to the configuration of the electrical component socket 10 in this embodiment, as described above, contact pins 32 are provided from each upper housing hole 30h of the upper slide plate 30 to each lower housing hole 28h of the lower slide plate 28. The electrical component socket 10 is equipped with a link mechanism 38 that moves the upper slide plate 30 and the lower slide plate 28 synchronously in different lateral directions to open and close the multiple contact pins 32. Therefore, multiple contact pins 32 can be opened and closed without using a cam mechanism.

[0057] Therefore, according to the electrical component socket 10 of this embodiment, even if the number of contact pins 32 is increased, the frictional force between the components of the electrical component socket 10 is suppressed, making malfunctions of the electrical component socket 10 less likely. In other words, according to the electrical component socket 10 of this embodiment, the operational reliability of the electrical component socket 10 can be improved even if the number of contact pins 32 is increased.

[0058] Furthermore, according to the configuration of the electrical component socket 10 in this embodiment, as described above, swing links 40 are provided on both sides of the lower slide plate 28 in the base member 12 so as to be able to swing around a horizontal swing axis 42c. The first connecting links 44, provided at both ends of the lower slide plate 28, are connected to one end of the corresponding swing link 40 so as to be able to move relative to it. The second connecting links 48, provided at both ends of the upper slide plate 30, are connected to the other end of the corresponding swing link 40 so as to be able to move relative to it. Therefore, the upper slide plate 30 and the lower slide plate 28 can be moved stably and synchronously in different lateral directions while keeping the complexity of the link mechanism 38 configuration to a minimum.

[0059] In particular, since the swing link 40 is equipped with a drive lever 52, the upper slide plate 30 and the lower slide plate 28 can be moved more stably in different lateral directions.

[0060] Therefore, according to the electrical component socket 10 of this embodiment, it is possible to further improve the operational reliability of the electrical component socket 10 while suppressing the complexity of the configuration of the electrical component socket 10.

[0061] Furthermore, according to the configuration of the electrical component socket 10 in this embodiment, as described above, an upper locking portion 34b is provided on the upper part of one clamping piece 34 of each contact pin 32, which engages with the inner wall surface of each upper housing hole 30h of the upper slide plate 30. A lower locking portion 36b is provided on the lower part of the other clamping piece 36 of each contact pin 32, which engages with the inner wall surface of each lower housing hole 28h of the lower slide plate 28. Therefore, the multiple contact pins 32 can be stably opened and closed in conjunction with (following) the lateral movement of the upper slide plate 30 and the lower slide plate 28.

[0062] Therefore, according to the electrical component socket 10 of this embodiment, the operational reliability of the electrical component socket 10 can be further improved.

[0063] Furthermore, according to the configuration of the electrical component socket 10A in Modification 1 of this embodiment, as described above, the base member 12 is provided with an operating member 60 that presses down one of the drive levers 52. Therefore, by pressing the operating member 60 or releasing the pressing operation of the operating member 60, the multiple contact pins 32 can be stably opened and closed.

[0064] Therefore, according to the modified example 1 of this embodiment, the operational reliability of the electrical component socket 10A can be further improved.

[0065] Furthermore, according to the configuration of the electrical component socket 10B in the modified example 2 of this embodiment, as described above, a cover member 62 is provided on the upper side of the base member 12 so as to be movable up and down, acting as an operating member that presses down a pair of drive levers 52. Therefore, by pressing the cover member 62 or releasing the pressing operation of the cover member 62, the multiple contact pins 32 can be stably opened and closed.

[0066] Therefore, according to the modified example 2 of this embodiment, the operational reliability of the electrical component socket 10B can be further improved.

[0067] Although this embodiment has been described in detail above, the present invention is not limited to the specific embodiments described above. Various modifications and changes are possible to the specific examples described above within the scope of the gist of the present invention as described in the claims. [Industrial applicability]

[0068] This invention is useful as an electrical component socket because it can improve the operational reliability of electrical component sockets even when the number of contact pins is increased. [Explanation of Symbols]

[0069] 10 Sockets for electrical components 12 Base member 12s containment space 14 Lower base member 16 Upper base member 18 Probe holder 18h holding hole 20 probe pins 22 Probe pin body 24 Upper contact member (upper end of probe pin) 26 Lower contact member (lower end of probe pin) 28 Lower sliding plate 28h Lower housing hole 28d recess 30 Upper sliding plate 30h Upper housing hole 30d recess 32 Contact pins 34 One clamping piece 34b Upper locking part 36 The aforementioned clamping piece 36b Lower locking part 38 Link Mechanism 40 Oscillating Link 42. Oscillating axis 42c Oscillating axis 44. First Link 44h insertion hole 44V insertion hole 46 1st connection shaft 48 Second Link 48h Through hole 48V insertion hole 50 2nd connection shaft 52 Drive lever 54 Upper fixing plate 54a 1st opening 54b 2nd opening 10A Socket for Electrical Components 56. First coil spring (first biasing member) 58. Second coil spring (second biasing member) 60 Operating member 10B Socket for electrical components 62 Cover component (operating component) 64 Operating part W Wiring board (first electrical component) Wa electrode PIC package (second electrical component) Pa electrode SA Set Area

Claims

1. A lower slide plate that is movable laterally relative to the base member and has a lower housing hole formed through it, An upper slide plate is provided so as to overlap the upper side of the lower slide plate, is movable laterally relative to the base member, and has an upper housing hole formed through it at a position corresponding to the lower housing hole, A contact pin is provided extending from the upper housing hole to the lower housing hole, electrically connectable to the electrode of the first electrical component, and whose upper end clamps the electrode of the second electrical component by opening and closing. The system includes a link mechanism that moves the upper slide plate and the lower slide plate synchronously in different lateral directions to open and close the contact pin, Socket for electrical components.

2. The aforementioned link mechanism is The base member is provided with pivot links on both sides of the lower slide plate, each pivotable around a horizontal pivot axis, A first connecting link is provided at both ends of the lower slide plate and is connected to one end of the corresponding swing link so as to be movable relative to it, The upper slide plate is provided at both ends and has a second connecting link that is connected to the other end of the corresponding swing link so as to be movable relative to it, The socket for electrical components according to claim 1.

3. The aforementioned link mechanism is The device further comprises a drive lever provided on at least one of the aforementioned swinging links, which swings the swinging link by a downward motion, The socket for electrical components according to claim 2.

4. The contact pin is provided with a locking portion that engages with at least one of the inner wall surfaces of the upper housing hole and the lower housing hole. The socket for electrical components according to claim 1.

5. The contact pin is formed in a U-shape or V-shape so as to have a pair of clamping pieces, One of the pair of clamping pieces is provided with an upper locking portion that engages with the inner wall surface of the upper housing hole. The other locking piece of the pair of clamping pieces is provided with a lower locking portion that engages with the lower housing hole. The socket for electrical components according to claim 1.

6. A probe holder is provided on the base member and has a holding hole formed through it, The system further comprises a probe pin provided in the holding hole, the lower end of which is capable of contacting the electrode of the first electrical component, The contact pin is supported from below by the probe pin and is electrically connected to the electrode of the first electrical component via the probe pin. The socket for electrical components according to claim 1.

7. The base member is provided with an operating member that presses down the drive lever, The socket for electrical components according to claim 3.

8. The operating member is a cover member that is provided on the upper side of the base member so as to be able to move up and down. The socket for electrical components according to claim 7.

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