JP2017037723A - Electric component socket - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electric component socket capable of preventing rubbing of a cover member and a lock mechanism, and suppressing the generation of metal chips.SOLUTION: An IC socket 10 has: a socket body 20; a cover member 30 rotatably attached to one end 22 side; and a lock mechanism 40. The lock mechanism 40 has a latch member 41 locking the cover member 30 in a close state on the other end 23 side of the socket body 20, a base member 44 rotating to the socket body 20 on the other end 23 side, and a lock lever 42 attached to the base member 44 on a base end portion 42a side, and rotated to move the latch member 41. The lock lever 42 can freely slide to the base member 44, and is energized to the base end portion 42a side by a lever spring 43. When locking, the lock lever 42 is rotated in a closing direction, slid to a tip end portion 42b side against energizing force, and engaged with an engaging portion 38.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a socket for an electric component that is disposed on a wiring board and accommodates the electric component in order to test an electric component such as a semiconductor device (hereinafter referred to as “IC package”).

  Conventionally, as this type of “socket for electrical components”, there is an IC socket that detachably accommodates an IC package that is an “electrical component” (see Patent Document 1).

  As the IC package, for example, a rectangular package body is provided, and terminals are provided on the package body.

  On the other hand, the IC socket is configured such that an IC package is accommodated in the socket body, and a cover member is provided on the socket body so as to be freely opened and closed. Further, when the cover member is closed, a lock lever is provided. It has a lock mechanism that rotates and locks. The IC package is pressed while the cover member is closed and locked by the lock mechanism, and the terminals of the IC package are brought into contact with the contact pins.

Japanese Patent No. 5584072.

  However, in the conventional one, when the cover member is closed and locked by the lock mechanism, the substantially U-shaped lock lever is rotated, and both protrusions are formed on both outer sides of the cover member. It was configured to come into contact with the pin from above and get over it, thereby being locked.

  In the case of such a configuration, when the lock lever gets over the protruding pin, the frictional force may be increased, and in this case, there is a problem that metal scraps are easily generated by rubbing both.

  Therefore, an object of the present invention is to provide an electrical component socket that can prevent the scraping of the cover member and the lock mechanism and suppress the generation of metal scraps.

  In order to achieve the above object, an invention according to claim 1 is an electrical component socket disposed on a wiring board and accommodating an electrical component, the electrical socket being disposed on the wiring substrate, wherein the electrical A socket body having a housing portion for housing the component, and a cover member that is pivotally attached to one end side of the socket body and presses the electrical component housed on the housing portion in a closed state. A lock mechanism that is provided in the socket main body and locks the cover member in a closed state, and the lock mechanism is provided on the other end side of the socket main body in a closed state of the front end side of the cover member. A locking portion that locks, a base portion that rotates with respect to the socket body at the other end of the socket body, and a base end side that is attached to the base portion and is rotated together with the base portion; Move the locking part A lock lever that is slidable in a direction connecting the base end side and the tip end side with respect to the base portion, and is biased toward the base end side by a biasing means. When the cover member is locked in the closed state, the lock lever is rotated in the closing direction and is slid toward the tip side against the urging force of the urging means, A socket for an electrical component adapted to be engaged with an engaging portion provided on a cover member or the socket body by an urging force of the urging means.

  The invention according to claim 2 is characterized in that, in addition to the invention according to claim 1, the engaging portion is provided on the base end side of the cover member.

  In addition to the invention described in claim 1 or 2, the urging means is constituted by a coil spring, and is formed on the base end side of the lock lever. It is arrange | positioned between the stopper and the said base part, It is characterized by the above-mentioned.

  In addition to the invention according to any one of claims 1 to 3, the lock mechanism includes a pair of the base portions on both sides of the locking portion, The substantially U-shaped lock lever is attached to the pair of base portions, and a lever tip perpendicular to the sliding direction of the lock lever is engaged with the engagement portion. And

  According to the first aspect of the present invention, the lock lever of the lock mechanism is made slidable and is urged toward the base end by the urging means, and is slid against the urging force, and the cover With the configuration in which the engaging portion provided on the member or the socket body is engaged by the urging force of the urging means, the cover member and the lock mechanism can be prevented from being rubbed and the generation of metal scraps can be suppressed.

  According to the second aspect of the present invention, since the engaging portion is provided on the base end side of the cover member, the rotating cover member can be rotated rather than provided on the socket body side. The engaging portion can be arranged without considering the interference, and can be easily arranged so as not to protrude from the outer shape of the socket, so that the outer shape of the socket can be reduced.

  Further, according to the invention described in claim 3, the biasing means constituted by the coil spring is disposed between the stopper formed on the base end portion side of the lock lever and the base portion. With a simple structure, the lock lever can be biased toward the base end side.

  According to a fourth aspect of the present invention, the locking mechanism has a substantially U-shaped locking lever attached to the pair of base portions on both sides of the locking portion, and is a lever orthogonal to the sliding direction of the locking lever. Since the tip portion is engaged with the engaging portion, the lock lever can be engaged with the engaging portion in a stable state.

1 is a perspective view of an IC socket according to an embodiment of the present invention. It is a top view of IC socket concerning the embodiment. It is sectional drawing which follows the HH line | wire of FIG. 2 in the IC socket which concerns on the embodiment. It is a perspective view in the state where the cover member in the IC socket concerning the embodiment was opened. It is the perspective view which looked at the state of Drawing 4 in the IC socket concerning the embodiment from a different angle. It is a perspective view of the state where the cover member in the IC socket concerning the embodiment is closed and the lock mechanism is not locked. It is sectional drawing which follows the AA line of FIG. 6 in the IC socket which concerns on the embodiment, and is a figure which shows the state which the slide member located in the 1st position. It is sectional drawing which follows the AA line of FIG. 6 in the IC socket which concerns on the embodiment, and is a figure which shows the state which the slide member located in the 2nd position. FIG. 3 is a cross-sectional view taken along line BB in FIG. 2 in the IC socket according to the same embodiment, (a) a state in which the slide member is located at the first position and accommodates the first IC package; It is the figure which compared the state in which the member was located in the 2nd position, and accommodated the 2nd IC package. It is a perspective view which shows the state before the engagement of the lock lever in the IC socket which concerns on the embodiment. It is sectional drawing which follows the JJ line | wire of FIG. 10 in the IC socket which concerns on the embodiment. It is sectional drawing which shows an internal motion of the locking mechanism in the IC socket which concerns on the embodiment. It is an expanded sectional view showing movement near a contact pin in an IC socket concerning the embodiment. It is an expanded sectional view showing movement of a state maintenance mechanism in an IC socket concerning the embodiment. It is a front view which shows the 1st IC package which concerns on the same embodiment. It is a front view which shows the 2nd IC package which concerns on the same embodiment. It is an expanded sectional view showing other examples of a state maintenance mechanism in an IC socket concerning the embodiment.

  Embodiments of the present invention will be described below.

  1 to 16 show an embodiment of the present invention.

  First, the configuration will be described. An IC socket 10 as an “electrical component socket” in this embodiment is arranged on a wiring board 1 as shown in FIG. Also, the first IC package 3 (see FIG. 15) or the second IC package 6 (see FIG. 16) as an “electrical part” is accommodated, and the electrode (not shown) of the wiring board 1 and the first IC package are accommodated. The spherical terminal (solder ball) 5 of the package 3 or the spherical terminal (solder ball) 8 of the second IC package 6 is electrically connected. For example, it is used for a burn-in test of the first IC package 3 or the second IC package 6.

  The first IC package 3 of this embodiment has a rectangular shape in plan view, and has a package body 4 having a predetermined thickness H1 as shown in FIG. A plurality of spherical terminals 5 are formed so as to protrude in a matrix.

  As shown in FIG. 16, the second IC package 6 is formed such that the thickness H2 of the package body 7 is thinner than the thickness H1 of the package body 4 of the first IC package 3. A spherical terminal 8 is provided on the lower surface of 7.

  On the other hand, the IC socket 10 is fixed on the wiring board 1 as shown in FIGS. 3, 7 to 9, and 11, as shown in FIGS. 1, 4, 5, 7 to 9, and the like. The socket main body 20 that accommodates the first IC package 3 or the second IC package 6, and the socket main body 20 is provided rotatably so as to open and close a floating plate 55 that will be described later. Or it has the cover member 30 which presses the 2nd IC package 6, and the lock mechanism 40 locked when this cover member 30 is closed.

  More specifically, as shown in FIG. 7 and the like, the socket body 20 includes a frame member 21 fixed on the wiring board 1 and formed in a frame shape, and contact pins provided inside the frame member 21. Unit 50. As shown in FIG. 13, the contact pin arrangement unit 50 includes an upper plate 51, a lower plate 53, and a first IC package 3 or a second plate in a state of being biased upward with respect to the upper plate 51. And a floating plate 55 as an “accommodating portion” for accommodating the IC package 6.

  Further, as shown in FIG. 13, a plurality of upper through holes 52 provided in the upper plate 51, a plurality of lower through holes 54 provided in the lower plate 53, and a plurality of through holes provided in the floating plate 55. 57, the contact pins 60 are inserted and held, whereby a plurality of contact pins 60 are arranged in a matrix. The contact pin 60 is in contact with the lower surface of the spherical terminal 5 of the first IC package 3 or the spherical terminal 8 of the second IC package 6 and is electrically connected to the electrode of the wiring board 1. It has become.

  As shown in FIG. 13, each contact pin 60 includes an upper contact member 61 made of a conductive metal material that contacts the spherical terminal 5 of the first IC package 3 or the terminal 8 of the second IC package 6, and a wiring. A lower contact member 62 made of a conductive metal material that comes into contact with the electrode of the substrate 1 is stretchably combined, and a coil spring 63 is disposed between the upper contact member 61 and the lower contact member 62, It is energized in the direction to extend.

  And the contact pin 60 comprised by these is inserted in the upper side through-hole 52 and the lower side through-hole 54 along the up-down direction. Further, the upper contact member 61 is moved up and down mainly in the upper through hole 52, and the lower contact member 62 is moved up and down mainly in the lower through hole 54.

  Further, the floating plate 55 is urged upward by a spring (not shown) and the like, and a large number of through holes 57 (see FIG. 13) through which the contact pins 60 are inserted are formed. As shown in FIG. 7, a guide portion 56 that guides each corner portion of the first IC package 3 or the second IC package 6 is formed.

  Moreover, the cover member 30 has the frame 31 and the press member 32, as shown in FIGS. Among these, the frame body 31 is a substantially rectangular member that is rotatably provided with respect to the socket body 20, and the base end 31 a (right end portion in FIG. 7) side of the frame body 31 is the side of the socket body 20. The frame member 21 is attached to the one end 22 side of the frame member 21 via a rotation shaft 34 provided substantially along the horizontal direction.

  A pair of engaging portions 38 for engaging a lock lever 42 described later is provided on the base end 31a side of the frame 31. The engaging portion 38 is formed with a recess 38a into which the lock lever 42 is inserted. Further, an R-shaped portion 38b that falls downward is formed above the recess 38a. Thus, for example, when the lock lever 42 is rotated in the closing direction and the lock lever 42 comes into contact with the R-shaped portion 38b, the lock lever 42 moves along the R-shaped portion 38b. The lever 42 can be smoothly guided to the recess 38a.

  2 and 7, the pressing member 32 is a member supported in the frame 31, and is substantially the same as the rotation shaft 34 at the center of the frame 31 (the center in FIG. 7). A predetermined amount of rotation is supported on a shaft 35 provided along the horizontal direction. Further, an insertion hole (not shown) on the pressing member 32 side through which the shaft 35 is inserted is formed as a long hole whose longitudinal direction is the longitudinal direction so that the pressing member 32 can move up and down by a predetermined amount with respect to the shaft 35. ing.

  Further, as shown in FIGS. 7 and 8, the pressing member 32 is downward so as to press the first IC package 3 or the second IC package 6 accommodated in the floating plate 55 when the cover member 30 is closed. And a pressing portion 33 having a substantially square shape in plan view.

  Further, as shown in FIGS. 7 and 8, the pressing member 32 has a fin-like heat sink portion 36 provided integrally with the upper portion of the pressing portion 33. Then, the heat of the first IC package 3 or the second IC package 6 is released from the heat sink part 36 through the pressing part 33 in contact therewith. Here, the heat sink portion 36 is formed in a shape having a larger vertical and horizontal width than the pressing portion 33.

  Moreover, this cover member 30 has the adjustment mechanism 70 which adjusts the height position of the press member 32 with respect to the floating plate 55 when the said cover member 30 is closed, as shown in FIGS. As shown in FIG. 2, the adjusting mechanism 70 according to this embodiment includes a pair of cam members 77 provided on both sides of the pressing member 32 in a state of being rotatable about the shaft 35, and a side surface of the cover member 30. And a pair of link members 74 having one end portion 75 connected to the cam member 77 and the other end portion 76 connected to the slide member 71.

  Among these, as shown in FIGS. 1 to 9, the slide member 71 includes a pair of operation units 72 provided so as to protrude from both side surfaces of the frame 31 of the cover member 30, and the two operation units 72. And a shaft 73 connecting the two. Further, the shaft 73 is inserted into a long hole 37 provided on both side surfaces of the frame body 31, and slides in the long hole 37. Thereby, the slide member 71 slides along the long hole 37. The long hole 37 of this embodiment is formed so that its longitudinal direction is substantially horizontal when the cover member 30 is closed and locked.

  Further, the adjusting mechanism 70 has the slide member 71 at a first position that is the right position shown in FIGS. 7 and 9A and a second position that is the left position shown in FIGS. 8 and 9B. In the first position, the cam member 77 is held in a state of rotating clockwise as shown in FIGS. 7 and 9A, and in the second position, the cam member 77 is held in FIG. As shown in FIG. 9B, it is held in a state of being rotated counterclockwise.

  7 and 8, the cam member 77 is rotatably provided on the shaft 35, and the contact surface 78 formed in a substantially arc shape has a pressing portion 33 of the pressing member 32 from above. It comes to contact with. In addition, here, it is configured to be rotatable by approximately 90 °. Further, a link shaft 79 to which the link member 74 is attached is provided at a position substantially opposite to the contact surface 78 and the shaft 35.

  Here, the cam member 77 has a length L1 from the shaft 35 at the first position shown in FIG. 7 to the contact surface 78 that comes into contact with the pressing portion 33, so that the cam member 77 extends from the shaft 35 at the second position shown in FIG. It is configured in an eccentric cam shape so that the length L2 up to the abutting surface 78 that abuts is longer. Further, as shown in FIGS. 7 to 9, the cam member 77 comes into contact with the pressing portion 33 of the pressing member 32 from above.

  The link member 74 is a plate-like member having a predetermined curved shape, and one end portion 75 is rotatably attached to the link shaft 79 of the cam member 77. The other end 76 of the link member 74 is attached to the shaft 73 of the slide member 71 so as to be rotatable.

  With such a configuration, the slide member 71 is slid from the first position to the second position (in the direction of arrow C in FIG. 7), so that the link member 74 attached to the shaft 73 at the other end 76 is in the second position. It is pulled in the direction (arrow C direction). As a result, the cam member 77 with the one end 75 of the link member 74 attached to the link shaft 79 rotates counterclockwise from the state of FIG. 7 to the state of FIG. As a result, the protruding amount of the cam member 77 can be changed.

  Specifically, the cam member 77 protrudes downward from the shaft 35 by the length L shown in FIG. 9 (length L2−length L1) in the second position rather than the first position. Can be changed. For this reason, the height position of the pressing member 32 can be displaced downward by the length L shown in FIG. In this embodiment, “length L (see FIG. 9) = the thickness H1 of the package body 4 of the first IC package 3 (see FIG. 15) −the thickness of the package body 7 of the second IC package 6”. Is configured to be “H2 (see FIG. 16)”.

  In addition, since the pair of link members 74 that rotate the pair of cam members 77 are connected to one shaft 73 of the slide member 71, the slide member 71 is operated by operating the operation portion 72 of the slide member 71. When the slide movement is performed, the pair of cam members 77 can be simultaneously rotated via the pair of link members 74, and the movements of the two cam members 77 can be adjusted without deviation.

  As shown in FIGS. 5, 7 to 9, and 14, the adjustment mechanism 70 includes a state holding mechanism 80 that restricts the movement of the slide member 71 held at the first position and the second position. ing. The state holding mechanism 80 includes a holding member 81 that comes into contact with the shaft 73 of the slide member 71 located at the first position or the second position from above, and an urging unit that urges the holding member 81 downward (illustrated). (Omitted).

  Further, the lower surface side of the holding member 81 has a first tapered surface 82 that holds the movement of the slide member 71 at the first position, and a second tapered surface 83 that holds the movement of the slide member 71 at the second position. The tapered surfaces 82 and 83 come into contact with the shaft 73 of the slide member 71.

  Thus, when the slide member 71 is located at the first position as shown in FIG. 7, the holding member 81 is urged downward by the urging force of the urging means as shown in FIG. The shaft 73 of the slide member 71 is pressed and held by the first tapered surface 82 of the holding member 81 in the lower right direction of FIG.

  When the slide member 71 is positioned at the second position as shown in FIG. 8, the holding member 81 is urged downward by the urging force of the urging means as shown in FIG. 14 (c). The shaft 73 of the slide member 71 is pressed and held by the second tapered surface 83 of the holding member 81 in the lower left direction of FIG.

  Further, when the slide member 71 is slid from the first position to the second position, the operation unit 72 of the slide member 71 is manually operated by the operator or the like, so that the predetermined direction from the first position to the second position is obtained. Apply more power. Then, the shaft 73 slides on the first tapered surface 82 in the left direction in FIG. 14A, and accordingly, the holding member 81 is pushed upward against the downward biasing force of the biasing means. It is supposed to be. When the shaft 73 of the slide member 71 slides further to the left beyond the boundary between the first tapered surface 82 and the second tapered surface 83 of the holding member 81 as shown in FIG. 73 is configured to slide on the second taper surface 83 and be held at the second position as shown in FIG. Note that the sliding movement of the slide member 71 from the second position to the first position is the reverse of the movement of the slide movement from the first position to the second position described above, and thus description thereof is omitted. .

  3 to 7, the lock mechanism 40 is provided on the other end 23 side of the frame member 21 of the socket body 20, and a substantially U-shaped lock lever 42 that is rotatable is a “base”. Are provided on a pair of base members 44 as "parts". The base member 44 is provided so as to be rotatable with respect to the frame member 21 of the socket body 20 by a lever rotation shaft 46, and is configured to rotate together with the lock lever 42.

  Between the pair of base members 44, a latch member 41 is provided as a “locking portion” that locks in a closed state on the tip 31 b side (the left end side in FIG. 7) of the frame 31. Inside the latch member 41, a cam mechanism 45 (see FIG. 12) that moves the latch member 41 up and down is provided. The details of the cam mechanism 45 will be described later.

  The lock lever 42 has a substantially U-shape comprising two lever side portions 42d extending from the base end portion 42a side to the tip end portion 42b side and a lever tip end portion 42c connecting the tip end portions 42b of the lever side portion 42d. It is formed in a shape. Each of the base end portions 42 a of the two lever side portions 42 d penetrates the pair of base members 44 provided on both sides of the latch member 41. It is slidably held in the direction connecting the 42a side and the tip end 42b side.

  Further, the lock mechanism 40 includes a pair of base members 44 to which the base end portion 42 a side of the lever side portion 42 d of the lock lever 42 is locked and the two lever side portions 42 d of the lock lever 42. A lever coil spring 43 as an “urging means” is provided on the base end portion 42a side in the longitudinal direction (the direction connecting the base end portion 42a side and the front end portion 42b side) with respect to the base member 44. Here, the lock lever 42 is urged in the direction of arrow F in FIG.

  More specifically, a screw member 42e is screwed into the base end portion 42a side of the two lever side portions 42d of the lock lever 42, and the diameter of the screw member 42e is smaller than that of other portions. It is comprised so that it may become. The head of the screw member 42e is a stopper 42f. Further, the base member 44 is formed with a lock lever insertion hole 44a through which the base end portion 42a side of the lock lever 42 is inserted, and a ring-shaped convex portion 44b is formed on the inner surface thereof.

  The lever side portion 42d of the lock lever 42 is slidable and slidable within the lock lever insertion hole 44a, and the screw member 42e provided in the lever side portion 42d is attached to the lever coil spring. 43 is inserted and is interposed between the stopper 42f and the convex portion 44b, thereby biasing the lever side portion 42d of the lock lever 42 in the direction toward the base end portion 42a (the direction of arrow F1 in FIGS. 1 and 3). A biasing force is generated.

  Therefore, when the lever side portion 42d is pulled in the direction toward the tip end portion 42b in the opposite direction with respect to the base member 44 against the urging force of the lever coil spring 43 (direction of arrow F2 in FIG. 11). Then, when a predetermined amount of sliding is performed in the direction toward the distal end portion 42b and the pulling is stopped and the urging force of the lever coil spring 43 is left, the sliding movement is performed by a predetermined amount in the direction toward the proximal end portion 42a. .

  Also, the cam mechanism 45 moves the latch member 41 downward by rotating the lock lever 42 in the direction of arrow E in FIG. 6 from the state shown in FIGS. 1, as shown in FIGS. 9A and 9B, the pressing member 32 is used to press the first IC package 3 or the second IC package 6.

  Specifically, as shown in FIGS. 2 and 4, the cam mechanism 45 is configured so that the lever side portion 42 d and the base member 44 are tilted by rotating in the direction of arrow E in FIG. 6 and rotating in the opposite direction. The latch member 41 is moved up and down in conjunction with the standing operation by the above, and the cover member 30 is held in the closed state by pushing down the front end 31b side of the frame body 31 of the cover member 30 with the inclining operation of the lever side portion 42d. At the same time, the IC package 3, 6 is pressed by the pressing portion 33 of the pressing member 32. Further, as shown in FIG. 12, the latch member 41 in which the cam mechanism 45 is disposed is engaged with a locked portion 31c (see FIGS. 4 and 7) provided on the tip 31b side of the cover member 30. A locking claw 47 for stopping is formed, and is biased upward by a spring member (not shown).

  In addition, the cam mechanism 45 is formed with a long hole 41 b that is long in the vertical direction through which the lever rotation shaft 46 is inserted inside the latch member 41. Further, a concave portion 41c for positioning the long hole 41b on the inner side is formed on one side of the latch member 41. A cam 48 fixed to the lever rotation shaft 46 is disposed in the recess 41c, and the tip 48a abuts on the lower side surface 41d of the inner surface of the recess 41c, so that the lock lever 42 is rotated. Along with the movement, the tip 48a of the cam 48 slides on the lower surface 41d of the recess 41c.

  Then, as shown in FIG. 6, when the lock lever 42 is rotated in the direction of arrow E and falls down, the cam 48 provided on the lever rotation shaft 46 in the state of FIG. It contacts the lower surface 41d of 41c and moves from right to left through FIG. 12 (b) to the state of FIG. 12 (c). As a result, the lower side surface 41d of the recess 41c of the latch member 41 is pressed by the tip 48a of the cam 48, the latch member 41 descends diagonally to the left, and the locking claw 47 of the latch member 41 engages with the cover member 30. The cover member 30 is pushed down by being locked to the stop portion 31c.

  At the same time, the lock lever 42 is pulled in the direction of the arrow F2 against the urging force of the lever coil spring 43, and the lever coil spring 43 is attached at the position of the recess 38a of the engaging portion 38 provided in the cover member 30. By slidably moving the lock lever 42 in the direction of the arrow F1 by the force, the lever tip 42c of the lock lever 42 enters the recess 38a and engages with the engagement portion 38. Thus, in the above-described pressing state, the lock state is locked. It is comprised so that.

  Next, the operation of the IC socket 10 having such a configuration will be described.

  First, as shown in FIGS. 4 and 5, when the cover member 30 of the IC socket 10 is opened, the floating plate 55 is urged upward by a spring, and the contact pin 60 as shown in FIG. The tip of the upper contact member 61 is in the through hole 57 of the floating plate 55. Next, the first IC package 3 or the second IC package 6 is accommodated on the floating plate 55 by an automatic machine or the like. At the time of accommodation, the first IC package 3 or the second IC package 6 is guided by the guide portion 56 of the floating plate 55.

  Thereafter, as shown in FIG. 6, the cover member 30 is closed, and the latch member 41 is locked on the front end 31 b side (the left end side in FIG. 7) of the frame body 31. Here, when the IC package accommodated in the floating plate 55 is the first IC package 3 in which the thickness H1 of the package body 4 is thick, the adjustment mechanism 70 is adjusted by the first tapered surface 82 of the holding member 81 of the state holding mechanism 80. The shaft 73 of the slide member 71 is regulated so that the slide member 71 is positioned at the first position (right side position as shown in FIG. 7) (the slide member 71 is positioned at the second position (left side position as shown in FIG. 8)). 8), the cam member 77 is moved to the position shown in FIG. 7 via the link member 74, and the downward protrusion amount of the cam member 77 is Due to the eccentric shape, the height position of the pressing member 32 is reduced by a length L in FIG. 9 compared to the second position.

  Further, when the IC package accommodated in the floating plate 55 is the second IC package 6 in which the thickness H2 of the package body 7 is thin, the second taper surface 83 of the holding member 81 of the state holding mechanism 80 is used for the adjustment mechanism 70. The shaft 73 of the slide member 71 is regulated so that the slide member 71 is positioned at the second position (left side position as shown in FIG. 8) (the slide member 71 is at the first position (right side position as shown in FIG. 7)). 7 is slid in the direction of arrow C in FIG. 7), the cam member 77 is positioned through the link member 74 as shown in FIG. According to the shape, the height position of the pressing member 32 is set to be lower by a length L in FIG. 9 than the first position.

  After that, the lock lever 42 is changed from the open state as shown in FIG. 6, FIG. 7 (or FIG. 8) to the closed state as shown in FIG. 1, FIG. 2, FIG. 9 (a) (or FIG. 9 (b)). The latch member 41 is moved downward, the pressing member 32 presses the first IC package 3 or the second IC package 6, and the lock lever 42 is engaged with the engaging portion 38. In the above-described pressed state, the locked state is established.

  More specifically, the lock lever 42 rotates with respect to the socket body 20 together with the base member 44 by rotating the lock lever 42 in the direction of arrow E in FIG. Then, the cam 48 of the cam mechanism 45 provided on the lever rotation shaft 46 that rotates together with the lock lever 42 as shown in FIG. 12 (a) rotates counterclockwise as shown in FIG. 12 (b). Further, it is further rotated to a place where the cam 48 is disposed sideways as shown in FIG.

  As a result, the cam 48 slides in the recess 41c, and the cam 48 presses the recess 41c downward from the inside. As a result, the latched portion 31c of the cover member 30 is latched by the latch member 41 and pressed downward.

  The lock lever 42 is slidable in the direction connecting the base end portion 42a side and the tip end portion 42b side with respect to the base member 44 (the direction of arrow F1 in FIG. 3 and the direction of arrow F2 in FIG. 11). Further, the lock lever 42 is urged toward the base end portion 42a by the lever coil spring 43.

  Further, the lock lever 42 is slid and moved toward the tip portion 42 b against the biasing force of the lever coil spring 43, and is slid and moved toward the tip portion 42 b at the position of the recess 38 a of the engaging portion 38 of the cover member 30. The lock lever 42 is slid to the base end 42 a side by the biasing force of the lever coil spring 43, and the lever distal end portion 42 c of the lock lever 42 enters the recess 38 a and engages with the engaging portion 38. Thereby, the cover member 30 is locked in the closed state by the lock lever 42.

  Here, since the height position of the pressing member 32 is adjusted by the adjusting mechanism 70, there is no gap between the IC packages 3 and 6 and the pressing member 32, and the IC packages 3 and 6 are pressed with the same contact pressure. Be able to.

  As a result, the first IC package 3 or the second IC package 6 is pressed downward by the pressing member 32, so that the floating plate 55 is subjected to the urging force of the spring as shown in FIG. 13B. The upper contact member 61 is pushed down against the urging force of the coil spring 63 and the first IC package 3 or the second IC package 6 is held with an appropriate contact pressure. The Rukoto.

  Further, since the setting can be changed to the IC packages 3 and 6 having different thicknesses before the cover member 30 is locked by the lock mechanism 40, the changing operation can be performed in a light load state. The height adjustment by the adjustment mechanism 70 described above may be performed in advance in accordance with the IC packages 3 and 6 to be accommodated at a stage before the IC packages 3 and 6 are accommodated.

  In this state, a burn-in test or the like is performed by passing a current through the first IC package 3 or the second IC package 6.

  After the burn-in test or the like is performed, the lock lever 42 is moved from the position shown in FIG. 1 to the position shown in FIG. 5 to open the lock mechanism 40, and the cover from the position shown in FIG. 6 to the position shown in FIG. After moving the member 30 to open the cover member 30, the first IC package 3 or the second IC package 6 is taken out of the floating plate 55 by an automatic machine or the like.

  As described above, the IC socket 10 according to this embodiment makes the lock lever 42 of the lock mechanism 40 slidable, and is biased toward the base end portion 42a by the lever coil spring 43. Therefore, it is not necessary to adjust the dimensions at the time of assembling, and the engaging portion 38 provided on the cover member 30 or the socket body 20 is engaged with the biasing force of the coil spring 43 for the lever. Further, rubbing between the cover member 30 and the lock mechanism 40 can be prevented, and generation of metal scraps can be suppressed.

  Further, in the IC socket 10 of this embodiment, the engaging portion 38 is provided on the base end 31a side of the cover member 30, so that the engaging portion 38 is rotated rather than provided on the socket body 20 side. The engagement portion 38 can be disposed without considering interference with the cover member 30 to be performed, and can be easily disposed so as not to protrude from the outer shape of the IC socket 10, so that the outer shape of the IC socket 10 is reduced. Can be made.

  Further, in the IC socket 10 of this embodiment, an urging means constituted by a lever coil spring 43 is disposed between a stopper 42f formed on the base end portion 42a side of the lock lever 42 and the base member 44. Therefore, the lock lever 42 can be urged toward the base end portion 42a with a simple structure.

  Further, in the lock mechanism 42 of the IC socket 10 of this embodiment, a substantially U-shaped lock lever 42 is attached to a pair of base members 44 on both sides of the latch member 41, and is orthogonal to the sliding direction of the lock lever 42. Since the lever tip portion 42c to be engaged is engaged with the engagement portion 38, the lock lever 42 can be engaged with the engagement portion 38 in a stable state.

  Further, the IC socket 10 of this embodiment has an adjustment mechanism 70 that adjusts the height position of the pressing member 32 of the cover member 30 with respect to the floating plate 55 of the socket body 20 when the cover member 30 is closed. Thus, a plurality of types of IC packages 3 and 6 can be accommodated in one IC socket 10, and can be held with appropriate contact pressure with respect to the IC packages 3 and 6 of each thickness. . This eliminates the need to change the IC socket 10 or attach special adjustment parts when accommodating a plurality of types of IC packages 3 and 6 having different thicknesses, so that the IC socket 10 can be handled easily. Therefore, the cost can be suppressed.

  Further, since the height position of the pressing member 32 can be adjusted by sliding the slide member 71 along the side surface of the cover member 30, the operation is simple and a part of the adjusting mechanism 70 is located above the pressing member 32. Therefore, even when any device is placed on the pressing member 32, the height position can be adjusted without the device getting in the way.

  In addition, the IC socket 10 of this embodiment is configured so that the slide member 71 is held at the first position and the second position where the height position of the pressing member 32 can be changed. It can be changed to a predetermined height position.

  Further, in the IC socket 10 of this embodiment, the adjusting mechanism 70 slides with a pair of cam members 77 provided on the shaft 35, and the slide member rotates the cam member 77 via the link member 74. 71, and the cam member 77 changes the height position of the pressing member 32. Therefore, the pressing member 32 can be reliably changed to a predetermined height position with a simple structure. Can do.

  Further, since the IC socket 10 of this embodiment has the state holding mechanism 80 that restricts the movement of the slide member 71 held in the first position and the second position in the adjustment mechanism 70, the first position Or it can prevent that the slide member 71 hold | maintained in the 2nd position moves unintentionally, and can thereby prevent that the height position of the press member 32 displaces arbitrarily.

  In the above-described embodiment, the present invention is applied to the IC socket 10 as the “electrical component socket”. However, the present invention is not limited to this and can be applied to other devices.

  In the above-described embodiment, the lock lever 42 is inserted into the base member 44 and slidably moved. However, the present invention is not limited to this, and the lock lever 42 may be slidable with respect to the base portion. It may be configured as follows.

  In the above-described embodiment, the lever coil spring 43 that urges the lock lever 42 toward the base end portion 42 a is provided with the stopper 42 f of the lever side portion 42 d of the lock lever 42 and the convex portion 44 b of the base member 44. However, the present invention is not limited to this, and coil springs may be arranged at other locations as long as the lock lever 42 is biased toward the base end portion 42a.

  In the embodiment described above, the lever coil spring 43 is used as the biasing means for biasing the lock lever 42 toward the base end portion 42a. However, the present invention is not limited to this. The urging means may be used to urge the lock lever toward the base end side.

  In the above-described embodiment, the latch member 41 is used as the locking portion in the lock mechanism 40. However, the present invention is not limited to this, and the cover member is locked by a configuration other than the latch mechanism. May be.

  In the above-described embodiment, when the cover member 30 is locked in the closed state, the lock lever 42 is engaged with the engaging portion 38 provided on the cover member 30. However, the present invention is not limited to this, and the lock lever may be engaged with an engaging portion provided in the socket body.

  In the embodiment described above, the lock mechanism 40 is provided with a pair of base members 44 on both sides of the latch member 41, and a substantially U-shaped lock lever 42 is attached to the pair of base members 44. However, the present invention is not limited to this, and the lock mechanism may have another configuration such that a base portion is provided only on one side of the locking portion, and a lock lever is attached to the base portion.

  Further, in the above-described embodiment, the adjustment mechanism 70 has the cam member 77 and the slide member 71 provided on the shaft 35, and the link member 74 that couples them, but is not limited thereto. Alternatively, the height of the pressing member relative to the housing portion may be adjusted by operating another configuration by sliding the slide member. For example, when the slide member is slid, the other shaft member slides on the inclined surface provided in the portion connected to the slide member, and the shaft member moves up and down by the slide. Then, the case where the press member attached to the said shaft member moves up and down is considered.

  In the above-described embodiment, the adjustment mechanism 70 has a pattern that is held at two positions, the first position and the second position. As a result, the adjustment mechanism 70 can cope with two types of thickness of electrical components. However, the present invention is not limited to this, and the adjustment mechanism may be a pattern that is held at three or more locations, and may be compatible with electrical components having three or more types of thickness.

  The adjustment mechanism is not limited to the configuration provided in the cover member, and may be provided in other members such as a socket body.

  In the above-described embodiment, the so-called BGA in which spherical terminals 5 are provided on the lower surface of the package body 4 is used as the IC package, and the IC socket 10 that accommodates this is described. However, the present invention is not limited to this. The present invention may be applied to an IC socket that accommodates another IC package such as an IC package called an LGA.

  In the above-described embodiment, the IC packages 3 and 6 are used as the electrical components. However, the present invention is not limited to this, and the present invention may be applied to other electrical components.

  In the above-described embodiment, the tapered surfaces 82 and 83 are biased downward as the state holding mechanism 80 that restricts the movement of the slide member 71 so as to hold the adjustment mechanism 70 at the first position and the second position. Although the configuration using the holding member 81 having the above has been described, the configuration is not limited to this, and any configuration may be used as long as the movement of the slide member 71 can be regulated. For example, like the state holding mechanism 180 shown in FIG. 17, the shaft 173 of the slide member 171 in the adjustment mechanism 170 is urged downward by a predetermined urging means (not shown) and the elongated hole 137 that slides is formed. The case where the holding | maintenance recessed parts 181 and 182 formed in the concave shape below are provided in the location of a 1st position and a 2nd position is mentioned. In this case, when the shaft 173 is moved between the first position and the second position, as shown by the arrow G, the shaft 173 held in the holding recess 181 at the first position is resisted against the urging force of the urging means. Then, the shaft 173 is moved in the lateral direction after being lifted up slightly, and then the shaft 173 is moved downward by the urging force of the urging means in the holding recess 182 in the second position, and is held in the second position. In this position, the shaft 173 falls downward, and the shaft 173 can be easily prevented from moving.

1 Wiring board
3 First IC package (electrical parts)
6 Second IC package (electrical parts)
10 IC socket (socket for electrical parts)
20 Socket body
22 One end
23 other end
30 Cover member
31a proximal
31b Tip
38 Engagement part
40 Locking mechanism
41 Latch member (locking part)
42 Lock lever
42a Base end
42b Tip
42c Lever tip
42f stopper
43 Lever coil spring (biasing means)
44 Base member (base part)
55 Floating plate (container)

Claims (4)

An electrical component socket disposed on a wiring board and containing electrical components,
A socket body disposed on the wiring board and having a housing portion in which the electrical component is housed;
A cover member that is pivotally attached to one end side of the socket body and presses the electrical component housed on the housing portion in a closed state;
A lock mechanism provided in the socket main body and locking the cover member in a closed state;
The locking mechanism is provided on the other end side of the socket main body and locks the front end side of the cover member in a closed state, and rotates on the socket main body on the other end side of the socket main body. A base portion that moves, and a base lever side attached to the base portion and a lock lever that moves the locking portion by rotating together with the base portion;
The lock lever is slidable in a direction connecting the base end side and the tip end side with respect to the base portion, and is biased to the base end side by a biasing means,
When locking the cover member in the closed state, the lock lever is rotated in the closing direction and slid toward the tip side against the urging force of the urging means. An electrical component socket, wherein the socket is configured to engage with an engaging portion provided in a socket body by an urging force of the urging means.   The electrical component socket according to claim 1, wherein the engagement portion is provided on the base end side of the cover member.   The biasing means is constituted by a coil spring, and is arranged between a stopper formed on the base end side of the lock lever and the base portion. Socket for electrical parts as described.   The lock mechanism is provided with a pair of base portions on both sides of the locking portion, and the substantially U-shaped lock lever is attached to the pair of base portions, and is orthogonal to the sliding direction of the lock lever. The socket for an electrical component according to any one of claims 1 to 3, wherein a lever tip portion to be engaged with the engaging portion.

Images