KR102070289B1 - Electrical Connecting Apparatus - Google Patents

Abstract

The present invention can prevent flying parts on the upper surface of the housing part from being blown away, simplify mounting or dismounting of the constituent members, and facilitate replacement of the constituent parts. An electrical connection device according to the present invention includes a housing portion accommodating a plurality of contacts in electrical contact with substrate wiring, a frame portion provided above the housing portion, the frame portion having an opening in an arrangement area of the plurality of contacts in the housing portion, and a frame. A plurality of floating guide portions provided in the openings of the portions and electrically connecting the electrode portions of the inspected object with the distal ends of the plurality of contacts, and the housing portion integrally forming the biasing portions for biasing the positioning pins and the floating guide portions. The positioning guide portion, and the floating guide portion has a plurality of positioning support portions for supporting each positioning bias portion.

Description

Electrical Connecting Apparatus

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electrical connection device, and is applicable to, for example, an electrical connection device used for conduction testing of a flat object under test such as an integrated circuit.

Conventionally, in the manufacturing process of integrated circuits, the electrical characteristics of the packaged integrated circuits are inspected (for example, a package test or a final test). In such an inspection, an electrical connection device (so-called test socket or socket board) for electrically contacting a contactor with an electrode terminal of the supported integrated circuit is used while the integrated circuit to be tested is detachably supported. The integrated circuit mounted on the electrical connection device is electrically connected to the inspection device (tester) through this electrical connection device to inspect the electrical characteristics.

Patent Literature 1 discloses an electrical connection device in which a socket base frame as a cover member (frame member) surrounds a socket base as a housing member and a floating base as a floating guide member. That is, the socket base is arrange | positioned on a board | substrate, the floating base is arrange | positioned on the socket base, and the socket base frame is provided so that the socket base and floating base which are in such a positional relationship can be supported.

The floating pedestal has a plane in the longitudinal direction, and a cylindrical through-hole slightly larger than the flat shape of the floating pedestal is formed in the center of the socket pedestal frame. Since the upper opening of the through hole is tightened, the upward movement of the floating pedestal is limited, and the shangdong is freely supported in the space formed by the socket pedestal frame and the socket pedestal.

The center part of a socket base is provided with the some hole for attaching a probe pin (henceforth simply a probe). In the center of the floating pedestal, there is provided an opening with an open top for mounting the integrated circuit at a position corresponding to the center of the socket pedestal, and the bottom of the opening is provided with a tip of a probe mounted in each hole of the socket pedestal. A plurality of through holes are provided to enter. A positioning member is provided to allow the floating pedestal to move vertically and vertically, with the tip of each probe mounted to each hole of the socket pedestal being inserted into each through hole of the opening of the floating pedestal. In addition, a floating spring as an elastic member is provided between the socket pedestal and the floating pedestal disposed thereon. As a result, a force is applied upward to the floating pedestal.

With this configuration, when the integrated circuit is mounted in the opening of the floating pedestal and pushed downward, the tip of each probe housed in each through hole at the bottom of the opening is connected to each terminal provided on the bottom of the mounted integrated circuit. It can be connected and electrically connected.

Patent Document 1: Japanese Patent Application Laid-Open No. 2006-331666

As described above, in the electrical connection device having a socket base frame, a socket base, and a floating base, a method of fixing the socket base frame and the socket base frame by screws or the like as the fixing method thereof is conventionally known. It's been done since.

At this time, the socket holder frame and the socket holder are fixed by screws on the lower side of the socket holder (the side on which the substrate is arranged), and the socket holder frame is fixed by screws on the upper surface of the socket holder.

Therefore, when performing maintenance such as replacement of the probe mounted on the socket holder, loosen the screw that secures the socket holder frame to the board, and then loosen the screw that secures the socket holder to the socket holder frame. It is necessary to remove the floating pedestal arrange | positioned, and to make it the state which can attach each probe attached to each hole of a socket pedestal.

In addition, when the floating pedestal is removed from the socket pedestal, the floating spring (elastic member) on the socket pedestal is exposed, which may cause the floating spring to fly away from the socket pedestal. Was needed.

Therefore, in view of the above problems, the mounting and dismounting of the constituent members of the electrical connection device can be simplified, the loss of the spring applying the upward force to the floating guide portion can be prevented, and the replacement of the component parts can be easily performed. There is a need for an electrical connection device capable of doing so.

In order to solve this problem, the electrical connection device which concerns on this invention is provided with the socket part provided on the board | substrate with wiring, and the electrical connection device which electrically connects the electrode part of the to-be-tested object attached to the socket part to the wiring formed in the board | substrate. A socket portion includes (1) a housing portion accommodating a plurality of contacts in electrical contact with a wiring formed on a substrate, and (2) a detachable upper portion of the housing portion, the opening being provided in an arrangement area of the plurality of contacts of the housing portion. And a plurality of through holes through which the front end portion of the plurality of contacts accommodated in the housing portion is inserted into the bottom portion of the opening portion, and has an opening portion on which the inspection object is mounted. An elastic member having a floating guide portion supported thereon, the housing portion being provided around the shaft portion of the guide pin erected on its upper surface. And a plurality of guide biasing portions having a coupling member which is supported so as to be movable along the axis of the guide pin while being forced upward by the floating guide portion, wherein the floating guide portion is a coupling member of each of the guide biasing portions. It characterized in that it has a plurality of coupling parts for coupling with.

According to the present invention, mounting or dismounting of the constituent members of the electrical connection device can be made simple from the top, and the spring applying the force to the floating guide portion upward can be prevented from falling off, and the replacement or maintenance of the component parts can be prevented. Management can be made easy.

BRIEF DESCRIPTION OF THE DRAWINGS The top view which shows the structure of the electrical connection device of embodiment.
FIG. 2 is a cross-sectional view taken along line AA of the electrical connection device shown in FIG. 1. FIG.
3 is a cross-sectional view taken along line BB of the electrical connecting device shown in FIG. 1.
4 is an enlarged configuration diagram showing the relationship between the guide biasing portion of the housing portion and the engaging portion of the floating guide portion in the embodiment.
It is an enlarged block diagram which shows the state in which the coupling part of the floating guide part was installed in the guide detail of the housing part of embodiment.
Fig. 6 is an enlarged configuration diagram showing a state in which the floating guide portion is pushed down while the coupling portion of the floating guide portion is installed in the guide detail of the housing portion of the embodiment.
It is an enlarged view explaining the mechanism which prevents the fall of the floating guide part which concerns on embodiment.
8 is an enlarged configuration diagram showing a state in which a coupling part of a floating guide part is provided in a guide detail of a housing part of a modified embodiment.
9 is an enlarged configuration diagram showing a state in which the floating guide portion is pushed down while the coupling portion of the floating guide portion is installed in the guide detail of the housing portion of the modified embodiment.

(A) Main embodiment

EMBODIMENT OF THE INVENTION Hereinafter, embodiment of the electrical connection device which concerns on this invention is described in detail, referring drawings.

(A-1) Configuration and Operation of Embodiments

First, the structure of the electrical connection device which concerns on embodiment is demonstrated.

FIG. 1 is a plan view of the electrical connection device 1, FIG. 2 is a sectional view taken along the line A-A of the electrical connection device 1 shown in FIG. 1, and FIG. 3 is a sectional view taken along the line B-B shown in FIG.

As shown in the figure, the electrical connection device 1 according to the embodiment has a substrate 10 and a socket portion 20 provided on the substrate 10. In addition, although the case where the one socket part 20 is arrange | positioned on the same board | substrate 10 is shown in FIG. 1, you may make it arrange | position the some socket part 20 on the same board | substrate 10. FIG.

The socket part 20 is a floating part which mounts the housing part 21 and the test object 51 which accommodate the some contact 12 in electrical contact with the terminal (electrode part) 511 of the test object 51. It is comprised with the guide part 23 and the frame part 22 which accommodates a floating guide in the opening part of a center.

The electrical connection device 1 is connected to an inspection device (also referred to as a "tester") that transmits and receives electrical signals required for the test, and inspects the electrical characteristics of the received test object 51. For example, in the manufacturing process of the integrated circuit as the inspected object 51, the electrical connection device 1 is used as a test IC socket for use in the electrical test (for example, a package test or a final test) of the assembled integrated circuit. Can be used.

The electrical connection device 1 accommodates the test object 51 in the opening portion 14 at the center of the floating guide portion 23 (see FIG. 2). For example, by means of an unillustrated means, the test subject 51 is pushed down toward the substrate 10 from the downward direction, that is, from the upper side of the opening 14 to the electrical connection device 1 by a predetermined pushing load. The test object 51 is mounted. Here, as the test object 51, the case where many terminal electrode parts 511 are arrange | positioned in matrix form (for example, LGA type) on the bottom face of a package is demonstrated.

The board | substrate 10 is a wiring board formed with the electrical insulation member, for example. On the surface of the board | substrate 10, the wiring pattern 11 which consists of a conductive metal material is formed by the printing wiring technique, for example. On the surface of the board | substrate 10 with which the wiring pattern 11 was formed, the housing part 21 of the socket part 20 is fixed by the fixing member which is not shown, such as a screw and a positioning pin, for example.

The wiring pattern 11 on the board | substrate 10 is formed so that it may contact and electrically connect with the lower part of each contactor 12 accommodated in the housing part 21, as shown in FIG. Although the shape of the wiring pattern 11 is not specifically limited, It is connected to the wiring of the inspection apparatus side which is not shown in figure.

As the contactor 12 accommodated in the housing part 21, a conventional contactor can be used, and it is preferable that it is rod-shaped, elastic in the longitudinal direction, and can be stretched. For example, pogo pins or international publication WO 2011 / Like the contactor described in 036935, a plurality of plate-like flangers can be slidably overlapped, and a contactor etc. supported around the coil spring can be used.

The frame portion 22 is formed of a metal member such as aluminum, for example, and is detachably fixed to the upper surface of the housing portion 21. The frame portion 22 has a rectangular planar shape (also includes a square in the rectangular shape. The same applies hereinafter). The floating guide portion 23 is formed at the center of the frame portion 22 as shown in FIGS. 2 and 3. ) And an opening 24 which is a vertically penetrating hole for guiding the shanghaidong.

The opening part 24 in the center part of the frame part 22 is a rectangular rectangular shape and a through-hole in a plane, and the floating guide part 23 is provided so that the floating guide part 23 can be mounted so that it can be moved. It is formed in an inner circumferential shape slightly larger than the outer circumferential shape of. Moreover, one or several recessed parts 241 are provided in the circumference | surroundings of the opening part 24 of the frame part 22 in order to remove the floating guide part 23 attached to the opening part 24 easily. In this embodiment, the case where the recessed part 241 is provided in four sides of the opening part 24, respectively is illustrated.

As shown in FIGS. 2 and 3, the opening 24 is provided with an opening in order to restrict the movement of the floating guide portion 23 downward and to stably support it during the test of the inspected object 51. An upper end portion 24 is provided with an end support portion 242 that is wider than the lower side and is in a single phase. At the top of the floating guide portion 23 there is a supported portion 231 protruding outward. Accordingly, the end guide portion 242 of the opening portion 24 of the frame portion 22 has the floating guide portion 23 in a state where the floating guide portion 23 is pushed downward and in contact with the lower surface of the supported portion 231. It is possible to support the supported portion 231 of 23, and to restrict the downward movement of the floating guide portion 23 further. In addition, the end support portion 242 is preferably provided so that the inner circumference of the opening 24 can be circumferentially so that it can be more reliably supported and limited in movement. However, the end support portion 242 may be partially installed. The two inner wall surfaces may be provided on at least two opposite surfaces. In addition, the supported portion 231 of the floating guide portion 23 is also preferable because it is more reliably supported and limited in movement if it is continuously installed around the outer circumference, but may be partially installed, for example, four side surfaces of the outer circumference. It may be installed on at least two faces of each other. Restriction of the upward movement of the floating guide portion 23 is performed by a shanghai copper guide mechanism described later. The detail of a shanghai east guide mechanism is mentioned later.

In the upper part of the frame part 22, the lock mechanism for preventing the floating guide part 23 from falling off from the frame part 22 is provided. The locking mechanism protrudes inwardly from the upper part of the opening part 24 to hinder the movement of the floating guide part 23 upward, and upwards of the floating guide part 23 without protruding into the opening part 24. It is possible to switch states that do not interfere with movement. Details of the locking mechanism will be described later.

The floating guide part 23 is formed of the electrical insulation member which consists of synthetic resin etc., for example, and accommodates the to-be-tested object 51. FIG. Moreover, the floating guide part 23 also functions to position and support the upper part of the contactor 12 irrespective of the change of the height position by the vertical movement. The floating guide portion 23 is accommodated in the opening portion 24 of the frame portion 22 and is detachably supported with respect to the frame portion 22.

In order to accommodate the test object 51, the floating guide part 23 is provided with the opening part 14 which consists of a square-shaped hole which has a flat surface rectangular opening, and has a bottom part 14d at the bottom. The shape of the opening part 14 which accommodates the to-be-tested object 51 is the same as the outer periphery of the to-be-tested object 51, or the inner periphery shape which has the rectangle formed slightly larger is rectangular.

The bottom part 14d of the opening part 14 is a surface where the upper surface and the lower surface are horizontal, and the several through-hole 141 which penetrated up and down for inserting and supporting the upper end of the several contactor 12 so that passage is possible. ) Is installed.

The lower side of the inner wall surface of the opening part 14 of the floating guide part 23 is attached to the bottom part 14d so as to detachably mount the subject 51 and to ensure the positioning of the subject 51. The vertical receiving wall surface 14b is provided. In addition, the upper side of the inner wall surface of the opening portion 14 of the floating guide portion 23 is inclined surface 14a inclined so as to widen the opening toward the upper portion of the frame portion 22 in order to facilitate mounting of the inspected object 51. Has That is, the upper side of the four inner wall surfaces of the opening part 14 is the inclined surface 14a, respectively. Moreover, the recessed part 14c dug outward is provided in each surface in the inner wall surface of the opening part 14 of the floating guide part 23, and the to-be-tested object 51 is pulled out easily.

The housing part 21 is formed of the electrical insulation member which consists of resin etc., for example, and is a member which accommodates the some contact 12. As shown in FIG. In this embodiment, the arrangement | positioning area of the some contact 12 in the housing part 21 is arrange | positioned at the center part in plan view, and is arrange | positioned in matrix form in the rectangular area | region. In the arrangement area of the contact 12, a plurality of through holes 211 penetrating in the vertical direction for accommodating the plurality of contacts 12 are provided, and the contact 12 is disposed in each through hole 211. It is inserted. In addition, the length in the height direction of each through hole 211 is smaller than the length of the contact 12, and in the state where the contact 12 is inserted into each through hole 211, the tip end of each contact 12 is formed. (Ie, the upper end) protrudes from each of the through holes 211. The housing part 21 is fixed to the board | substrate 10 by fixing members, such as a screw and a press-fit pin. It is preferable for the fixing member to be fixed to the substrate 10 or to be released therefrom.

Moreover, on the center part of the housing part 21, the floating guide part 23 supports the operation | movement (up / down movement) to an upward direction and a downward direction, keeping the lower surface parallel to the upper surface of the housing part 21. It is. The floating guide portion 23 is pushed downward, that is, the upper surface of the end support portion 242 of the opening portion 24 of the frame portion 22 and the lower surface of the supported portion 231 of the floating guide portion 23. In this contacted state, the upper surface of the housing portion 21 and the lower surface of the floating guide portion 23 are set so as to be in a state in which the upper surface of the housing portion 21 is in direct contact with each other or a state in which a gap is formed. At this time, the positional relationship between each through-hole 211 of the housing part 21 and each through-hole 141 in the opening part 14 of the floating guide part 23 is located so that the floating guide part 23 may be corresponded. ) Is installed.

Therefore, in the state where the floating guide part 23 is located on the housing part 21, the front-end | tip part of the contactor 12 which protrudes from each through hole 211 of the housing part 21 of the floating guide part 23 is carried out. It is inserted into each through hole 141. The length of each contactor 12 (the length of the unconverted state) is larger than the sum of the lengths in the height direction of each through hole 211 of the housing portion 21 and each through hole 141 of the floating guide portion 23. Big. And when the floating guide part 23 is applied upward by the shanghai copper guide mechanism mentioned later, when it is in the highest position, the front-end | tip part of the contactor 12 of each through-hole 141 of the floating guide part 23 is carried out. Located in each through hole 141 without protruding from the top, and until the floating guide portion 23 is pushed down to reach the lowest position, that is, the end support portion 242 of the opening portion 24 of the frame portion 22. ), And the tip of the contactor 12 protrudes from the top of each through hole 141 of the floating guide portion 23 before the upper surface of the floating guide portion 23 and the lower surface of the supported portion 231 of the floating guide portion 23 contact with each other. It is. Therefore, in the state in which the test subject 51 is accommodated in the opening 14 of the floating guide portion 23 and pushed downward, each contact member protruding from the top of each through hole 141 of the floating guide portion 23. The tip end portion (12) is in electrical contact with the terminal 511 of the lower surface of the inspected object 51 attached to the opening 14.

[Positioning Support Mechanism of Frame 22]

Next, the positioning support mechanism of the housing part 21 and the frame part 22 is demonstrated, referring drawings.

As shown in FIG. 2, since the positioning of the frame portion 22 with respect to the housing portion 21 is precisely fixed and detachably fixed on the housing portion 21, the frame portion 22 includes a plurality of positioning convex portions. 221 is provided, and the housing portion 21 is provided with a plurality of positioning recesses 212 at positions corresponding to the respective positioning convex portions 221.

Each positioning convex portion 221 of the frame portion 22 is press-fitted into the positioning concave portion 212 of the housing portion 21 to fix the frame portion 22 to the housing portion 21, The position of the frame portion 22 with respect to the housing portion 21 is accurately determined. Since the positioning convex part 221 is pulled upward and can be taken out from the positioning concave part 212, the frame part 22 is detachable upward with respect to the housing part 21. As shown in FIG.

Each positioning convex part 221 is a member which protruded from the bottom part of the frame part 22, for example, is a cylindrical shape. Although the number of each positioning convex part 221 is not specifically limited, For example, you may make it two or four pieces. In this embodiment, the case where there are four positioning convex parts 221 is illustrated, and each of the four positioning convex parts 221 has four sides of the opening part 24 of the frame part 22 whose plane is rectangular. It is provided between each and each of four sides of the outer periphery of the frame part 22 whose plane is rectangular.

Each positioning concave portion 212 of the housing portion 21 fixes each frame convex portion 221 of the frame portion 22 to fix the frame portion 22. The positioning concave portion 212 is provided with a fastening member 212a having a fastening hole 212b, which is a hole into which the positioning convex portion 221 is press-fitted, and a housing part 21 for supporting the fastening member 212a. It has a fastening member accommodating part 212c provided.

The tightening member 212a is composed of synthetic resin (including elastomer) having elasticity, and has a tightening hole 212b, which is a circumferential through hole into which the positioning convex portion 221 is press-fitted, at the center. The inner diameter of the tightening hole 212b is set smaller than the outer diameter of the positioning convex portion 221 to have a tightening margin for fixing the positioning convex portion 221. The inner diameter of the tightening hole 212b is set so that the positioning convex portion 221 can be stably and reliably supported, and can be pulled out by pulling the frame portion 22 upward. Since the tightening member 212a has a cylindrical shape and the outer diameter of the upper part is set smaller than the outer diameter of the lower part, the stepped surface is formed on the outer circumference of the portion where the outer diameter changes.

The fastening member accommodating part 212c is a hole provided in the housing part 21 for accommodating the fastening member 212a. As shown in FIG. 2, the housing portion 21 has a lower member 21a provided on the substrate 10 side and an upper member 21b provided on the frame portion 22 side, and the upper member on the lower member 21a. The 21b overlaps and is comprised. The fastening member accommodating part 212c consists of a recessed part formed by blocking the lower opening of the through hole formed in the upper member 21b of the housing part 21 with the upper surface of the lower member 21a of the housing part 21. . The fastening member accommodating part 212c is set so that the upper inner diameter may be smaller than the lower inner diameter so that the fastening member 212a may be fitted, and the stepped surface is formed in the outer periphery of the part whose inner diameter changes.

Installation of the tightening member 212a to the tightening member accommodating part 212c inserts the tightening member 212a into the lower opening of the through hole provided in the upper member 21b constituting the tightening member accommodating part 212c, The member 21a can be overlapped with each other on the lower surface of the upper member 21b. At this time, the fastening member 212a does not escape from the upper opening of the fastening member accommodating portion 212c because the step surface is in contact with the step surface of the fastening member accommodating portion 212c. Each positioning concave portion 212 is provided at a position corresponding to each positioning convex portion 221 of the frame portion 22, and the number of the positioning concave portions 212 is also determined for each positioning convex portion 221. Is installed as many as).

In addition, in this embodiment, although the positioning convex part 221 is provided in the frame part 22 and the positioning concave part 212 is provided in the housing part 21, the convex part is provided in one side. The concave portion may be provided on the other side, for example, the positioning concave portion may be provided in the frame portion 22 and the positioning convex portion may be provided in the housing portion 21. In this case, what is necessary is just to provide a fastening member accommodating part in the frame part 22, and to provide the fastening member with a fastening hole in it.

[Up and down movement guide mechanism]

Next, the mechanism which guides the shanghaidong of the floating guide part 23 is demonstrated, referring FIGS.

The shanghai copper guide mechanism is upwardly and downwardly, applying a force upwardly to the floating guide portion 23 disposed at the center opening portion 24 of the frame portion 22 above the center portion of the housing portion 21. It is provided to guide the movement to and to support easily detachable from the upper side. The shanghai copper guide mechanism has the guide part 215 provided in the housing part 21, and the engaging part 232 provided in the floating guide part 23. As shown in FIG.

The floating guide portion 23 stands on the upper surface of the housing portion 21 in a state where the frame portion 22 is provided on the upper surface of the housing portion 21 and is located in the opening 24 of the frame portion 22. By being provided at the front end of the auxiliary part 215, it is freely supported by the center opening part 24 of the frame part 22.

As shown in FIG. 3, as a guide device for shangdong, a plurality of guide biasing portions 215 are provided in the housing portion 21, and each guide biasing portion 215 of the housing portion 21 is provided in the floating guide portion 23. A plurality of engaging portions 232 are provided at positions corresponding to

As shown in FIG. 1, the shanghai copper guide mechanism is provided in each of the four corners of the rectangular floating guide part 23. As shown in FIG. That is, in this embodiment, although the case where there are four shanghai-dong guide mechanisms is illustrated, the number of shanghai-dong guide mechanisms is not specifically limited.

4, 5, and 6 are enlarged block diagrams showing the relationship between the guide biasing portion 215 of the housing portion 21 and the engaging portion 232 of the floating guide portion 23, and FIG. 4 is a guide portion. The state before the coupling part 232 of the floating guide part 23 is fitted in the upper end of the detail 215, FIG. 5 is the coupling part of the floating guide part 23 in the upper end of the guide part 215 (FIG. Figure 232 shows a state after the fitting, Figure 6 is a view showing a state when the floating guide portion 23 is pushed downward in the state of FIG.

As shown in FIGS. 3 to 5, the guide biasing portion 215 of the housing portion 21 includes a guide pin 217 and a coupling member slidably disposed axially around the axis of the guide pin 217. 218, an elastic member 219 disposed around the guide pin 217 at the bottom of the coupling member 218 to apply a force upwardly to the coupling member 218, and upwardly of the coupling member 218. In order to limit the movement of the guide pin 217 has a movement control member 220 installed on the top, and a guide support 216 for supporting the lower end of the guide pin 217 and the elastic member 219. And the guide support part 216 is the pin support part 216d for supporting the guide pin 217 perpendicularly to the upper surface side of the housing part 21, and the lower receiving part 216a for receiving the lower end part of the elastic member 219. Has In addition, the coupling member 218 has an upper receiving portion 218a for receiving an upper end of the elastic member 219.

The guide pin 217 is a pin that stands vertically on the upper surface of the housing portion 21 to guide the shanghai copper of the coupling member 218, and is connected to the pin support portion 216d at the lower end to be fixed to the housing 21. It has a pin fixing portion 217a for, and has a restricting member installation portion 217b for installing a movement restricting member 220 to restrict the movement of the coupling member 218 upward. Moreover, the upper part of the pin fixing part 217a becomes the circumferential shaft part 217c by which the insertion hole 218b which is a through hole provided in the engaging member 218 passes, and the elastic member 219 is arrange | positioned around it. .

The pin fixing portion 217a to the pin supporting portion 216d is preferably detachable for easy maintenance, and can be twisted, sandwiched, pressed or the like, for example. In this embodiment, the pin fixing part 217a is cut out by an external screw, and the pin supporting part 216d which consists of a through hole is cut out by an inner thread, and the pin fixing part 217a is twisted and fixed to the pin supporting part 216d from the upper side. have. The shaft portion 217c has an outer diameter larger than that of the pin fixing portion 217a, and has a stepped surface that is a surface perpendicular to the shaft portion 217c and the pin fixing portion 217a. Thereby, by twisting the guide pin 217 until the step surface is in contact with the peripheral surface of the upper opening of the pin support portion 216d, the height of the upper end of the guide pin 217 with respect to the upper surface of the housing portion 21. Can be fixed constantly and vertically.

The upper portion of the shaft portion 217c has a restricting member attaching portion 217b for attaching the movement restricting member 220 to the upper end. In the present embodiment, the restricting member attaching portion 217b is constituted by a blocked hole which is raised along the axial direction from the upper end of the shaft portion 217c and cut by an internal thread.

The movement restricting member 220 is a member that is installed at the upper end of the shaft portion 217c and restricts the movement of the coupling member 218 moving upward along the shaft portion 217c, and is fitted to the restricting member mounting portion 217b. It has a part to be fixed and a part (hereinafter, simply referred to as an extension part) extending from the outer circumferential surface of the shaft part 217c to the circumference in a state provided on the upper end of the shaft part 217c. In the present embodiment, the movement restricting member 220 is a portion cut by an external screw to be fitted into the inner thread of the restricting member mounting portion 217b, and a head having an outer diameter larger than the inner diameter of the insertion hole 218b of the coupling member 218. It consists of a male screw which has a 220a. As a result, in the coupling member 218 applied upward by the elastic member 219, the upper opening of the insertion hole 218b is in contact with the extension portion of the head 220a of the movement restricting member 220, and more. Since the upward movement is limited, the upper limit height position of the coupling member 218 can be adjusted to a predetermined position, and the dropping of the coupling member 218 upward can be prevented.

The coupling member 218 is made of elastic resin (including elastomer) or the like, and has a shape in which a through hole is formed on a cylindrical shaft. The upper portion of the through hole is an insertion hole 218b, which is a hole through which the shaft portion 217c of the guide pin 217 passes, and an inner diameter thereof allows the coupling member 218 to move along the shaft portion 217c. It is slightly larger than the outer diameter of). In addition, the lower portion of the through hole is the upper receiving portion 218a in contact with the upper end of the elastic member 219 disposed around the shaft portion 217c of the guide pin 217, and the inner diameter thereof is the outer diameter of the elastic member 219. It is formed larger. As a result, a stepped surface is formed in the portion that is connected to the insertion hole 218b, the upper end of the elastic member 219 is in contact with the stepped surface, and the coupling member 218 is forced upward by the restoring force of the elastic member 219. This is applied.

In addition, the outer circumferential surface of the coupling member 218 is a portion that contacts the inner surface of the coupling portion 232 of the floating guide portion 23 and serves to support the floating guide portion 23, and the outer diameter thereof is the coupling portion 232. It is larger than the inner diameter of) to have a tightening margin. The outer diameter of the coupling member 218 can securely support the floating guide portion 23 by inserting the coupling member 218 into the coupling portion 232 of the floating guide portion 23, and at the same time, the floating guide portion ( 23 is set to separate from the engaging member 218 by pulling upwards. In addition, the upper outer periphery of the coupling member 218 has a chamfered portion 218c chamfered to facilitate the coupling of the floating guide portion 23 to the coupling portion 232.

In addition, since the upper end surface of the coupling member 218 is perpendicular to the axis of the insertion hole 218b, the coupling member 218 so that the upper surface of the coupling member 218 contacts the upper surface of the coupling portion 232. ) Is inserted into the engaging portion 232 of the floating guide portion 23, the floating guide portion 23 is held horizontally by the guide bias portion 215.

The elastic member 219 is installed to be wound around the shaft portion 217c of the guide pin 217, and is a member that presses the coupling member 218 upward by the restoring force. In this embodiment, the coil spring It is. The inner diameter of the elastic member 219 is set larger than the outer diameter of the shaft portion 217c of the guide pin 217, and the outer diameter is the inner diameter of the upper receiving portion 218a of the coupling member 218 and the lower end of the guide support portion 216. It is set smaller than the inner diameter of the receiving part 216a. The elastic member 219 is sandwiched and supported by the upper receiving part 218a of the coupling member 218 and the lower receiving part 216a of the guide support part 216.

The guide support part 216 is provided in the housing part 21 to support the lower end part of the guide pin 217 and the lower end part of the elastic member 219. The guide support part 216 consists of a hole which penetrates the housing part 21, The lower part of the hole becomes the pin support part 216d which fixes the pin fixing part 217a of the guide pin 217, The upper part is The lower end receiving part 216a which supports the lower end of the elastic member 219 is comprised. Since the inner diameter of the lower receiving part 216a is larger than the inner diameter of the pin support part 216d, the step surface 216b is formed in the bottom of the lower receiving part 216a.

The pin support part 216d is cut by the inner screw so that the pin support part 216d may engage with the outer thread of the pin fixing part 217a of the guide pin 217. The guide pin 217 is twisted until the lower end of the shaft portion 217c of the guide pin 217 contacts the circumference of the upper opening of the pin support 216d (step surface of the lower receiving portion 216a), thereby guiding the guide pin 217 The pin 217 is erected perpendicularly to the upper surface of the housing portion 21.

The lower receiving portion 216a has a stepped surface 216b and an inner wall surface 216c surrounding the periphery thereof, and since the inner diameter of the inner wall surface 216c is formed larger than the outer diameter of the elastic member 219, the elastic member The lower part of 219 is supported by being surrounded by the inner wall surface 216c with the lower end contacting the step surface 216b.

As described above, the elastic member 219 is disposed around the shaft portion 217c of the guide pin 217 that is fixed to the pin support 216d, and at the same time, the upper receiving portion 218a and the guide support of the coupling member 218 ( Since the lower end receiving portion 216a of the 216 is sandwiched and supported, the coupling member 218 is pushed upward by the restoring force.

As a method of assembling the shanghai copper guide mechanism of the above-described configuration, for example, the coupling member 218 and the elastic member on the guide pin 217 with the movement restricting member 220 installed on the upper end of the guide pin 217. The guide pin 217 can be provided in the guide support part 216 in the state which passes the member 219, and can be performed. In addition, after the guide pin 217 is installed on the guide support 216, the elastic member 219 and the coupling member 218 pass through the guide pin 217, and the movement restricting member 220 passes through the guide pin 217. It can also be installed at the top of the).

Thus, in the installation of the floating guide part 23 to the guide biasing part 215 attached to the housing part 21, in the state in which the frame part 22 was installed in the housing part 21, The floating guide portion 23 is pushed downward from the upper portion of the opening portion 24 of the frame portion 22 by matching the position of the engaging portion 232 to the position of the engaging member 218 of the guide biasing portion 215 ( 4). As a result, the coupling member 218 of the guide biasing portion 215 is fitted into the engaging portion 232 of the floating guide portion 23, and the floating guide portion 23 is provided in the guide biasing portion 215 (Fig. 6). Thereafter, when the pushing downward of the floating guide portion 23 is released, the engaging member 218 of the guide biasing portion 215 is pushed upward by the elastic member 219, and the engaging member 218 is released. The top of the stops in contact with the extension of the movement control member 220. Thereby, the floating guide part 23 is maintained in the state which floated at the predetermined height, applying a force upwards (refer FIG. 5).

As such, when the floating guide part 23 pushes down the floating guide part 23 downward in a state in which the floating guide part 23 is installed in the guide biasing part 215 (state shown in FIG. 5), the coupling member 218 of the guide biasing part 215 is provided. Moves downward along the shaft portion 217c of the guide pin 217 while contracting the elastic member 219 (see FIG. 6).

As described above, the Shanghai-dong guide mechanism according to the embodiment has a function of guiding the upward and downward directions of the floating guide portion 23, a function of applying a force upwardly to the floating guide portion 23, Since one mechanism can be provided with the function of supporting detachably from an upward direction, space reduction of the electrical connection device 1 can be attained. In addition, even when the floating guide portion 23 is separated, since the elastic member 219 such as the coil spring is not exposed but is supported in the guide biasing portion 215 as in the prior art, the elastic member 219 is removed. It can prevent, and maintenance becomes easy. In addition, since the upper limit height position of the coupling member 218 is limited by the movement restricting member 220, it is necessary to provide a movement limiting mechanism upward of the floating guide portion 23 in the frame portion 22 as in the prior art. And the detachment of the floating guide part 23 becomes easy. In addition, since the detachment of the floating guide portion 23 and the detachment of the frame portion 22 can be performed only by pressing and removing operations from the upper side, maintenance becomes easy.

[Drop prevention mechanism]

Next, the fall prevention mechanism of the floating guide part 23 provided in the opening part 24 of the frame part 22 by the guide biasing part 215 is demonstrated, referring FIG. 1, FIG. 3, and FIG. .

As mentioned above, although the floating guide part 23 is supported by the guide biasing part 215, in order to support more reliably, the fall prevention mechanism which prevents the fall of the floating guide part 23 functions effectively. Since the portion formed of the synthetic resin or the like, such as the coupling member 218 of the guide biasing portion 215, is more likely to deteriorate than the metal portion, for example, the coupling member 218 has a lowered bearing capacity due to degradation or wear. Even in this case, the floating guide portion 23 can be reliably supported by providing the fall prevention mechanism.

As shown in the figure, the fall prevention mechanism which prevents the fall of the floating guide part 23 is comprised by the some eccentric rotation member 31 provided in the frame part 22. As shown in FIG. In FIG. 1, in order to reliably support the floating guide portion 23 in the opening portion 24 of the frame portion 22, the two eccentric rotating members 31 have an opening portion 24 of the frame portion 22 having a rectangular plane. The case where it is arrange | positioned near the diagonal of () is shown. In addition, the position of the eccentric rotation member 31 is not limited to the position illustrated in FIG. 1, It may be provided in the opposite side of the opening part 24, and the number of the eccentric rotation member 31 is limited to two. no.

The eccentric rotation member 31 represented by an eccentric shaft or an eccentric bolt has a shaft portion 312 serving as a rotating shaft and a head 311 provided on an upper end of the shaft portion 312. The shaft portion 312 is rotatable to the frame portion 22 and is fixed so as not to fall easily upward. The shaft center P of the shaft portion 312 is at an eccentric position in the head 311, and a part of the head 311 is rotated into the opening 24 of the frame portion 22 by the rotation of the head 311. It is supposed to protrude. As a result, the head 311 is rotated to protrude into the opening 24 of the frame portion 22, thereby contacting the upper surface of the floating guide portion 23 to limit the upward movement of the floating guide portion 23. It is supposed to be.

The upper surface of the head 311 is provided with a handle portion 313 protruding upwards to facilitate the rotation of the head 311. In addition, the handle portion 313 may be easily rotated by forming a groove in the upper surface of the head 311 instead of protruding upward of the upper surface of the head 311.

The part in which the eccentric rotation member 31 of the frame part 22 is provided is the plate recess 243 so that rotation of the head 311 may not be prevented. In addition, the plate contacting recessed part 235 is provided in the part which contact | connects the head 311 of the floating guide part 23 so that the head 311 may mutually catch.

7 is an enlarged perspective view illustrating a fall prevention mechanism according to the embodiment. FIG. 7 (A) shows a non-locked state (the head 311 does not protrude into the opening 24) of the eccentric rotating member 31, and FIG. 7 (B) The locked state of the eccentric rotating member 31 (the state in which the head 311 protrudes into the opening 24) is shown.

As shown in FIG. 7A, the engaging recess 235 of the floating guide portion 23 is in contact with the head 311 of the rotated eccentric rotation member 31 to prevent the floating guide portion 23 from falling off. It is a part and becomes a fan-shaped groove, and is lower than the height of the other part of the floating guide part 23. As shown in FIG.

The height position of the lower surface of the head 311 is the coupling recessed portion 235 when the floating guide portion 23 is supported by the guide bias portion 215 in a state where no force is applied downward in this embodiment. Although it is set to the position substantially the same as the height position of a bottom face, you may set to a position slightly higher than that, and to a position a little lower than that. If it is set to a slightly higher position, a gap is formed between the head 311 and the engaging concave portion 235, and if it is set to a slightly lower position, the floating guide portion 23 is pushed downward slightly. In this applied state, the coupling recess 235 is in contact with the head 311.

As shown in FIG. 7B, the head 311 protrudes toward the opening portion by rotating the eccentric rotation member 31 so that the floating guide portion 23 is guided by the guide biasing portion 215. Even if the head 311 attempts to move upward from the set upper limit position, the head 311 blocks the floating guide portion 23 in contact with the engaging concave portion 235, thereby limiting the upward movement of the floating guide portion 23. can do.

By doing in this way, the holding force of the floating guide part 23 by the guide biasing part 215 becomes weak, For example, even if the floating guide part 23 is going to fall, the floating guide part 23 can be supported.

On the other hand, by making the eccentric rotation member 31 into the non-locked state from the locked state, the floating guide portion 23 can be separated from the frame portion 22.

In addition, since the lock state and the non-lock state can be switched from the upper side, the lock state can be easily performed.

(A-2) Installation and Separation Method of Components of Embodiment

[Installation Method of Components]

The installation method of each component of the electrical connection device 1 of the above-mentioned embodiment is demonstrated below.

First, the housing part 21 is fixed on the board | substrate 10 by fixing members, such as a screw, from the board | substrate 10 upper side. In addition, the housing part 21 may be fixed by providing the pin which protruded in the lower surface of the housing part 21, and press-fitting into the hole provided in the board | substrate side. In addition, the contact part 12 is accommodated in the housing part 21, The through-hole 211 in either of the lower member 21a and the upper member 21b which comprise the housing part 21 is received. After inserting the corresponding one end side of the contactor 12 into the hole constituting), the other end side of the contactor 12 is connected to the through hole (the other side of the lower member 21a and the upper member 21b). The lower member 21a and the upper member 21b can be overlapped with each other so as to be inserted into the holes constituting 211. In addition, the guide part 215 is provided in the housing part 21 by the said method, The housing part 21 may be installed before installing it in the board | substrate 10, and after installing it in the board | substrate 10, Also good.

Subsequently, the frame part 22 is pushed on from the upper surface of the housing part 21 provided on the board | substrate 10, and is mounted. At this time, each of the positioning convex portions 221 provided at the bottom of the frame portion 22 is inserted into each of the positioning concave portions 212 of the housing portion 21, and the frame portion ( 22). At this time, in the opening part 24 of the frame part 22, each guide biasing part 215 provided in the housing part 21 is located.

Next, the floating guide part 23 is inserted into the opening part 24 of the frame part 22 fixed to the housing part 21, and each engaging member 218 of the guide biasing part 215 is formed by the above-mentioned method. Each coupling portion 232 of the floating guide portion 23 is inserted into the floating guide portion 23, and the floating guide portion 23 is provided in the guide bias portion 215, and is supported in the opening portion 24 of the frame portion 22.

Subsequently, in the state where the floating guide portion 23 is supported in the opening portion 24 of the frame portion 22, each eccentric rotation member 31 of the frame portion 22 is rotated as described above to a locked state. To operate the fall prevention function.

The test subject 51 to be inspected is mounted in the opening 14 of the floating guide section 23 of the electrical connection device 1 provided as described above, and is pushed downward (to the substrate 10 side) to check the test subject 51 The terminal 511 of) is brought into contact with the contactor 12 to inspect the inspected object 51.

[Separation Method of Components]

Subsequently, the separating method of each component member of the electrical connection device 1 of embodiment is demonstrated. In addition, the method of separating the constituent members includes the following method.

The first method is a method of separating the floating guide portion 23 from the frame portion 22 and then removing the frame portion 22 from the housing portion 21. In this case, each eccentric rotation member 31 of the frame portion 22 is first rotated to be in a locked state. Thereafter, the floating guide portion 23 is pulled upward and taken out. As a result, the floating guide part 23 falls from the guide biasing part 215. Thereafter, a force is pulled out to pull the frame portion 22 upward. Thereby, the housing part 21 is in the state which fully exposed. In addition, in order to separate the housing part 21 from the board | substrate 10, when screwing, it removes and removes a screw from the upper side, and in the case of press-in, it pulls out and removes it. Moreover, in order to isolate the contact 12 accommodated in the housing part 21, it can carry out by isolate | separating the lower member 21a and the upper member 21b of the housing part 21 which overlapped with each other. In addition, in order to separate the guide portion 215, the movement restricting member 220 fixed to the upper end of the guide pin 217 is separated, and coupled with the elastic member 219 inserted into the guide pin 217. This can be done by removing the member 218 and removing the guide pin 217 fixed to the guide support 216. In this first method, it is possible to easily separate each component by operation from all upwards.

The second method is a method of separating the floating portion 23 of the frame portion 22. In this case, first, the frame portion 22 is pulled upward and pulled out. As a result, the positioning convex portion 221 of the frame portion 22 is separated from the positioning concave portion 212 of the housing portion 21, and the floating guide portion 23 is the end support portion of the frame portion 22. Pulled upward together by 242, the engaging portion 232 of the floating guide portion 23 is separated from the engaging member 218 of the guide biasing portion 215. At this time, each of the eccentric rotating members 31 may be in a locked state or may be in a non-locked state. However, if the eccentric rotating members 31 are pulled out in a locked state, the floating guide part 23 is the frame portion 22 at the time of pulling out. It is preferred because it ends without separation from. Thereafter, the floating guide portion 23 is removed from the frame portion 22. At this time, when the eccentric rotation member 31 is in the locked state, the lock is taken out of the locked state. Since the subsequent steps are the same as those of the first method, description thereof is omitted. In the case of this second method, both of them can be separated by operation from above, and since the frame portion 22 and the floating guide portion 23 can be removed together, the separation of each component becomes simpler.

(A-3) Effect of Embodiment

As described above, in the conventional electrical connecting apparatus, it takes a lot of effort to separate the floating guide portion, but according to the present embodiment, the floating guide portion and the frame portion can be easily detached by pressing and pulling operations from the upper side. This facilitates replacement and maintenance of the contactor and other components.

In addition, according to the present embodiment, even if the floating guide portion is removed, an elastic member such as a spring for moving the floating guide portion is not exposed, and thus, unintentional separation of the elastic member, such as a spring flying, can be prevented.

In addition, according to the present embodiment, the mechanism for moving the floating guide portion can integrate the positioning, support, the guide of the shandong, the upward bias, and the upward movement restriction into one mechanism. Can be. Thereby, compared with the case where each function is comprised separately, a structure can be simplified and a required space can also be reduced.

(B) another embodiment

Although the above-mentioned embodiment mentioned various modified embodiment of this invention, this invention is applicable also to the following modified embodiment.

(B-1) Shanghai-dong guide mechanism for floating guide

8 and 9 are enlarged views illustrating a shanghai-dong guide mechanism of the floating guide unit according to a modified embodiment, and FIG. 8 is a coupling portion 232 of the floating guide unit 23 coupled to an upper end of the guide biasing unit 615. 9 is a state in which the floating guide portion 23 is pushed downward while the coupling portion 232 of the floating guide portion 23 is coupled to the upper end of the guide bias portion 615. The figure which shows.

As shown in FIGS. 3 to 6, in the above-described embodiment, a case in which the movement restricting member 220 restricting the movement of the coupling member 218 upward is formed separately from the guide pin 217. Illustrated. On the other hand, in this modified embodiment, as illustrated in FIGS. 8 and 9, the coupling member 218 of the guide biasing portion 615 is restricted from moving upward along the guide pin 617, and the guide pin The extension part 617d for preventing the exit from 617 is comprised with the tuck pin provided integrally in the upper end of the guide pin 617. As shown in FIG. In addition, in the said FIG. 8 and FIG. 9, the same code | symbol is attached | subjected about the same part as embodiment mentioned above, and description is abbreviate | omitted.

As described above, when the extension portion 617d is formed at the upper end of the guide pin 617, the coupling member 218 of the guide biasing portion 615 is pushed upward by the elastic member 219, and the coupling member 218 is provided. ) Is stopped in a state where the upper end of the) contacts the extension portion 617d. Thereby, the floating guide part 23 provided in the engaging member 218 is supported in the state which floated at the predetermined height, applying a force upwards (refer FIG. 8).

In addition, when the floating guide 23 is pushed downward in the state where the floating guide 23 is installed in the guide biasing portion 615 (the state shown in FIG. 8), the coupling member of the guide biasing portion 615 is formed. 218 moves downward along the shaft portion 617c of the guide pin 617 while contracting the elastic member 219 (see FIG. 9).

In addition, the pin fixing part 617a of the guide pin 617 and the pin supporting part 216d of the guide support part 216 can be fixed by screwing or press-fitting similarly to embodiment mentioned above.

Also in this modified embodiment, since the upper limit height position of the coupling member 218 can be set and a omission can be prevented, the electrical connection device 1 of the embodiment mentioned above also used the electrical connection device using the said guide bias part 615. ) Has the same action and effect.

1: Electrical connection 10: Substrate
11: wiring pattern 12: contactor
20: socket 51: subject
21: housing portion 21a: lower member
21b: upper member 211: through hole
212: positioning recess 212a: tightening member
212b: Tightening hole 215, 615: Guide detail
217 and 617: guide pin 218: coupling member
219: elastic member 216: guide support
216a: lower receiver 216d: pin support
220: movement restriction member 617d: extension
22: frame portion 221: positioning convex portion
23: floating guide portion 231: supported portion
232: engaging portion 31: eccentric rotation member
311: tofu 312: shaft

Claims (5)

In the electrical connection apparatus which has a socket part provided on the board | substrate with wiring, and electrically connects the electrode part of the to-be-tested object attached to the said socket part to the wiring formed in the board | substrate, The said socket part,
A housing part accommodating a plurality of contacts in electrical contact with the wiring formed on the substrate;
A frame portion detachably installed above the housing portion and having an opening in an arrangement area of the plurality of contacts of the housing portion; And
A floating guide portion having an opening on which the inspected object is mounted, having a plurality of through holes through which upper ends of a plurality of contacts accommodated in the housing portion are inserted at a bottom of the opening portion, and being movable in the opening of the frame portion;
Including,
A coupling member in which the housing portion is movable upward along the shaft portion of the guide pin while being urged upward by an elastic member provided around the shaft portion of the guide pin erected on the upper surface thereof, and with limited movement upward. Has a plurality of guides detailing,
And the floating guide portion has a plurality of coupling portions detachably coupled to the coupling members of each of the guide bias portions.
The electrical connection device according to claim 1, wherein the guide pin of the guide bias portion has a portion extending from an axis portion for restricting the upward movement of the coupling member at an upper end thereof.
2. The electrical connecting device according to claim 1, wherein the frame portion is attached to the housing portion by press fitting between a plurality of convex portions provided on one side and a plurality of concave portions provided on the other side.
2. A state according to claim 1, which is provided around an opening of the frame portion, protrudes into the opening to restrict movement upward of the floating guide portion, and enables movement above the floating guide portion without protruding into the opening. An electrical connection device having a mechanism capable of switching a state to be.
The electrical connection device according to claim 4, wherein the mechanism uses a member that rotates by an eccentric rotation shaft.

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