JP4291231B2 - Socket device for electrical parts - Google Patents

Description

  The present invention relates to an electrical component socket device that is brought into contact with a contact portion of an electrical component such as an IC module and connected to a wiring pattern of a circuit board.

  The structure of a conventional socket device for electric parts has an IC accommodating space defined in a rectangular frame and contacts arranged in parallel along the four sides of the frame, and the contacts include IC leads (contact points). And a surface mounting arm connected to the wiring pattern of the wiring board (for example, see Patent Document 1).

Hereinafter, the structure of a conventional socket device for electric parts will be described with reference to the drawings.
FIG. 9 is a plan view showing a part of a conventional socket device for electric parts in a cutaway view, and FIG. 10 is a side view of a contact portion showing a mounting state of the conventional socket device for electric components.

  In the figure, the contact 33 is provided with a press-fit plate portion 35 that is press-fitted from the lower surface of the frame-shaped frame 31, that is, the surface facing the wiring board 34, toward the upper surface at the uppermost end. The contact arm 38 that extends from the front of the IC 36 toward the IC accommodating space 32 and is used for mounting the lead 37 of the IC 36, and the rear portion of the lower plate thickness surface of the press-fitting plate portion 35 to the IC accommodating space 32. A surface mounting arm 41 is provided that extends toward the solder and is soldered to the wiring pattern 39 of the wiring board 34.

  The contacts 33 are formed by punching from a plate material, and face each other on a punched plate surface 33a of the punched plate material. That is, the contacts 33 are press-fitted at equal intervals so that the plate thickness surfaces 33b of the contacts 33 are juxtaposed in a plane in the contact juxtaposition direction. Accordingly, the contact arm 38 and the surface mounting arm 41 are arranged with their plate thickness surfaces spaced apart in a plane in the contact juxtaposition direction, like the press-fitting plate portion 35, and the plate thickness surfaces are connected to the leads 37 of the IC 36. And soldering with the wiring pattern 39. The contacts 33 are separated from each other on the plate surface side by a partition wall 42 formed integrally with the frame-shaped frame 31.

  The slot 43 of the partition wall 42 holding the contact 33 is a through slot that opens at the upper surface and the lower surface of the frame-shaped frame 31, and the press-fitting plate portion 35 is press-fitted from the lower opening of the through-slot 43 toward the upper opening. The protrusions 44 formed on the side plate thick surface of the plate portion 35 are bitten into the inner wall of the upper slot portion of the slot 43 so that the contact is implanted in the frame-shaped frame 31.

  The contact arm 38 and the surface mounting arm 41 are both connected to the press-fitting plate portion 35 in the slot 43, and the base side of each arm 38, 41 exists in the lower slot portion of the slot 43, and the tip of the contact arm 38 A portion is projected from the slot 43 into the IC accommodating space 32, and the mounting portion 45 of the IC lead 37 is formed at the tip of the arm. Similarly, the tip of the surface mounting arm 41 is moved from the slot 43 to the IC. A soldering portion 46 that protrudes into the accommodation hollow portion 32 and is soldered to the wiring pattern 39 of the wiring board 34 is formed at the tip of the arm.

  The IC 36 is inserted into the IC accommodating space 32. In this space, the IC lead 37 is placed on the contact portion 45, and the soldering portion 46 is soldered 40 to the wiring pattern 39. Surface mounting of the socket with respect to the wiring board 34 is achieved.

Japanese Patent No. 2604969

  However, in the structure of the conventional socket device for electric parts described above, the contacts are press-fitted so as to face each other on the punched plate surface punched from the plate material, and the contact surface with the IC lead and the soldering mounting Since the surface is thick, the contact surface may not be flat depending on the punched state. For this reason, the contact between the lead and the contact becomes unstable, and there is a problem in contact reliability. There was also a problem in solderability with the wiring pattern.

  Therefore, the present invention solves the above-described problems, and forms a contact surface of the contact terminal with the contact portion of the electrical component and a mounting surface for soldering on a flat surface and improves the solderability of the soldering portion. An object is to provide a socket device for an electrical component.

In order to solve the above-described problems, the present invention provides, as a first solving means, a housing having a mounting portion on which an electrical component is mounted, a plurality of through holes formed in the mounting portion, and one end of the plurality of through holes A plurality of contact terminals having a contact portion that is press-fitted and held in the housing so as to pass through the hole and protrude into the housing and that contacts a contact portion of an electrical component to be mounted, and a soldering portion that is soldered to the substrate The plurality of contact terminals are connected to a hoop material by a connecting bar before being press-fitted into the housing, and the contact portions and the soldering portions of the contact terminals are formed by punching a metal plate. And forming a connecting portion between the plurality of contact terminals and the connecting bar of the hoop material at a position different from the soldering portion, In a state in which the electrical component to the bottom inner formed deposited portion is placed, the contact portion of the contact the contact portion the electrical component provided at one end of the terminal at the inner bottom surface flush with the mounting portion It was set as the structure which contacts elastically.

As a second solution, the contact terminal is formed by bending along the surface of the punched plate surface of the metal plate, the contact portion is provided on one end side thereof, and the soldering is provided on the other end side. The soldering portion is formed close to one side end surface side on the other end side, and the connecting portion with the connecting bar is formed on the other side end surface side.
Further, as a third solution, the contact terminal is formed by bending along the surface of the punched plate surface of the metal plate, the contact portion is provided on one end side thereof, and the soldering is provided on the other end side. A portion is provided, the soldering portion is formed at the center of the other end side, and a connecting portion with the connecting bar is formed on both sides of the soldering portion.

Further, as a fourth solving means, the soldering portion is formed to be bent toward the mounting portion side of the electrical component mounted on the housing.
Further, as a fifth solution, a pressing portion that is pressed when the contact terminal is press-fitted into the housing is formed in the hoop material, and a central position of the pressing portion and a central position of the press-fitting portion of the contact terminal And the same center line in the press-fitting direction.

  As described above, the socket device for an electrical component of the present invention includes a housing having a mounting portion on which the electrical component is mounted, a contact portion that is press-fitted and held in the housing, and contacts a contact portion of the electrical component to be mounted, A plurality of contact terminals having soldering portions for soldering connection to the substrate, and the plurality of contact terminals are connected to the hoop material by a connecting bar before being press-fitted into the housing, The soldering part is formed so as to be the same surface as the punching plate surface of the metal plate, and the connection part between the plurality of contact terminals and the hoop material connecting bar is formed at a position different from the soldering part. Since the contact portion and the soldering portion of the contact terminal are flush with the punched plate surface of the metal plate, the contact surface becomes flat and the contact reliability is improved. Is provided with the connecting portion of the crosspiece connecting outside parts, it can be subjected to solder plating on the entire surface of the soldering portion, thereby improving the solderability. Further, it is possible to prevent stress from being applied to the soldering portion when the connecting bar is cut after the press-fitting.

Further, the contact terminal is formed by bending along the surface of the punched plate surface of the metal plate, the contact portion is provided on one end side thereof, the soldering portion is provided on the other end side, and the soldering portion is provided on the other end side. Since it is formed close to one side end face side, and a connecting part with a connecting bar is formed on the other side end face side, a wide connecting part is formed by bringing the soldering part close to one side end face side. Therefore, the connecting portion and the contact terminal are not easily separated from each other, and the transmission of the pressure input at the time of press-fitting is ensured, and the workability is improved.
Further, the contact terminal is formed by bending along the surface of the punched plate surface of the metal plate, the contact portion is provided on one end side thereof, the soldering portion is provided on the other end side, and the soldering portion is provided on the other end side. Since it is formed in the center of the side and the connecting part with the connecting rail is formed on both sides of this soldering part, the connecting part can be formed on both sides of the soldering part, so that the contact terminals are press-fitted in a balanced manner. Can do.

In addition, since the soldering part is formed by bending toward the mounting part side of the electrical component to be mounted on the housing, the soldering part is not connected to the crosspiece in the soldering part, so the soldering part is connected to the mounting part side of the electrical component. Therefore, the socket device can be reduced in size.
In addition, a pressing portion that is pressed when the contact terminal is press-fitted into the housing is formed in the hoop material, and the center position of the pressing portion and the center position of the press-fitting portion of the contact terminal are aligned on the same center line in the press-fitting direction. For this reason, by aligning the pressing position of the contact terminal with the center of the press-fitting portion of the contact terminal, it is possible to prevent the inclination during the pressing of the contact terminal, and thus it is possible to press-fit reliably. In addition, workability is improved.

  1 to 8 show an embodiment of a socket device for electric parts of the present invention. FIG. 1 is an exploded perspective view of an electrical component socket device according to the present invention, FIG. 2 is an exploded perspective view of the electrical component socket device according to the present invention as seen from different directions, and FIG. 3 is a plan view of the electrical component socket device according to the present invention. 4 is a cross-sectional view taken along line 4-4 of FIG. 3, FIG. 5 is a perspective view of a contact terminal continuously provided with a hoop material, FIG. 6 is a side view of the contact terminal continuously provided with a hoop material, and FIG. FIG. 8 is a perspective view showing another embodiment of the contact terminal continuously provided with the hoop material, and FIG. 8 is a side view showing another embodiment of the contact terminal continuously provided with the hoop material.

  1 to 4, the housing 1 is made of an insulating material such as synthetic resin, and is formed in a rectangular box shape having an upper surface opened, and the inside of the opening of the housing 1 is mounted with an electrical component. It is part 1a. A plurality of locking projections 1b projecting outward are formed on the outer sides of the respective side plates provided on the four sides of the housing 1, and a plurality of concave vertical grooves 1c are provided on the inner side. It has been. In addition, a plurality of locking grooves 1d penetrating outward along the four sides are provided on the inner bottom portion of the mounting portion 1a.

  The mounting portion 1a of the housing 1 is provided with a plurality of strip-shaped through holes 1e extending from the four sides to the center of the mounting portion 1a. The through holes 1e are connected to the through holes 1e on the four side portions. In addition, a plurality of concave grooves 1f are formed which open to the mounting portion 1a side and extend further upward of the side plate. The contact terminal 2 is press-fitted into the through hole 1 e and the concave groove 1 f so that the contact terminal 2 is held in the housing 1.

  As shown in FIGS. 5 and 6, the contact terminal 2 is made of a conductive metal plate, and is formed by being connected to a flat hoop material 3 by a crosspiece 3 a. The contact terminal 2 is formed by bending in two stages along the punched plate surface of the metal plate of the hoop material 3, and a press-fit portion 2 a connected to the connecting bar 3 a and a U-shape from the press-fit portion 2 a. One end side of a contact terminal 2 which is a free end of the second arm 2c, and has a second arm 2c bent further in a V shape from the first arm portion 2b. Further, a contact portion 2d that comes into contact with the contact portion 5a of the electrical component 5 mounted on the mounting portion 1a of the housing 1 is provided.

  Further, at the connecting portion with the connecting bar 3a which is the other end side of the contact terminal 2, the center of the connecting bar 3a is cut and raised and bent to the first and second arms 2b and 2c side at a substantially right angle. A soldering portion 2e is formed, and a connecting portion 2f to the connecting bar 3a is formed on both sides of the soldering portion 2e. Further, the connecting portion 2f is provided with a V-grooving coining groove that is unevenly distributed in the thickness direction. By providing the coining groove, the hoop material 3 is separated from the contact terminal 2 by pressing. It is not necessary to cut with the use of, etc., and can be easily cut off by bending.

That is, the connecting portion 2f between the plurality of contact terminals 2 and the connecting rail 3a of the hoop material 3 is formed at a position different from the soldering portion 2e, and the connecting rail 3a of the hoop material 3 is directly connected to the soldering portion 2e. Therefore, the soldering portion 2e can be formed by being bent toward the mounting portion 1a side of the housing 1.
For this reason, since the soldering part 2e does not have the connecting part 2f with the connecting bar 3a, the soldering part 2e can be bent toward the mounting part 1a side of the electrical component 5 of the housing 1, so that the socket device is miniaturized. It has become something that can be.

  Further, since the connecting portion 2f to the connecting bar 3a is provided at a portion other than the soldering portion 2e, the entire surface of the soldering portion 2e can be subjected to solder plating, and the soldering portion 2e of the contact terminal 2 on the substrate (not shown). When soldering and mounting, solderability can be improved. Further, after the contact terminal 2 is press-fitted into the housing 1, when the contact terminal 2 is cut from the connecting bar 3a of the hoop material 3, it is possible to prevent the soldering portion 2e from being stressed and to prevent deformation. It has become a thing.

  Further, the press-fitting portion 2a of the contact terminal 2 is provided with a bulging portion 2g that bulges outward on both sides parallel to the plate surface. When the contact terminal 2 is press-fitted into the housing 1, The bulging portion 2g is firmly held by the housing 1 by being strongly fitted to the side surface of the concave groove 1f of the housing 1. At this time, the first and second arms 2b and 2c of the contact terminal 2 are disposed so as to protrude through the plurality of through holes 1e provided in the bottom surface portion of the housing 1 and into the mounting portion 1a. Become.

  When the contact terminal 2 is press-fitted into the housing 1, the connector terminal 2 connected to the hoop material 3 is inserted into the through hole 1e and the concave groove 1f from the bottom surface side of the housing 1. In this case, the hoop material 3 is formed with a pushing portion 3b composed of a notch portion with which an insertion jig (not shown) or the like abuts. By pressing the pushing portion 3b with the insertion jig, the contact terminal 2 The press-fitting portion 2 a is press-fitted into the concave groove 1 f of the housing 1.

  In this case, the center position of the press-fitting part 2a of the contact terminal 2 and the center position of the pushing part 3b of the hoop material 3 are formed so as to be on the same center line in the press-fitting direction. By aligning the pushing position with the center of the press-fitting portion 2a of the contact terminal 2, it is possible to prevent tilting while the contact terminal 2 is pushed in, so that the press-fitting can be surely performed. The workability can be improved.

  Further, the contact terminal 2 is formed by bending along the surface of the punched plate surface of the metal plate, and a contact portion 2d that contacts the contact portion 5a of the electrical component 5 is provided on one end side of the contact terminal 2 and illustrated on the other end side. A soldering part 2e to be soldered to a substrate not to be mounted is provided, the soldering part 2e is formed at the center on the other end side, and a connecting part 2f of the hoop material 3 to the connecting bar 3a on both sides of the soldering part 2e Since the connecting portion 2f can be formed on both sides of the soldering portion 2e, the contact terminal 2 can be press-fitted in a balanced manner.

  The frame 4 is made of a thin metal plate and has a substantially U-shaped cross section. Four frames 4 are provided in the state of being fitted to the respective side plates provided on the four sides of the housing 1. The frame 4 includes an outer plate 4 a that covers the outside of the side plate of the housing 1, and an inner plate 4 b that is bent from the upper portion of the outer plate 4 a to the mounting portion 1 a of the housing 1.

  The outer plate 4a is provided with a locking hole 4c that engages with a locking projection 1b formed on the outside of the side plate of the housing 1, and a fixing piece 4d that is bent outward at a right angle is provided at the lower end. Is provided. Further, the inner plate 4b is provided with a plurality of elastic contact pieces 4e bent from the upper part into the mounting part 1a of the housing 1 at a predetermined angle, and at the lower end, four sides of the inner bottom part of the mounting part 1a of the housing 1 are provided. A locking piece 4f that engages with the locking groove 1d formed in the is provided.

  The frame 4 is provided on the four sides of the housing 1 in a state where the plurality of elastic contact pieces 4e of the inner plate 4b are opposed to the plurality of concave vertical grooves 1c formed inside the side plate of the housing 1. , Fixed to each side plate. When the electrical component 5 is mounted on the mounting portion 1a of the housing 1, the plurality of elastic contact pieces 4e are brought into elastic contact with the side surface portion of the electrical component 5 mounted on the mounting portion 1a. Is held by the mounting portion 1 a of the housing 1. At this time, the contact portion 5a formed on the lower surface side of the electrical component 5 and the contact portion 2d formed on one end side which is the free end of the second arm 2c of the contact terminal 2 come into contact with each other.

  In this case, the contact terminal 2 is formed by bending along the surface of the punched plate surface of the metal plate, and the contact portion 2d is provided on one end side thereof, so that the contact portion 2d of the contact terminal 2 is provided. However, since the surface is the same as the punched plate surface of the metal plate, the contact surface of the electrical component 5 with the contact portion 5a becomes a stable flat surface, and the contact reliability between the contact portion 5a and the contact portion 2d is improved. It has become.

7 and 8 show another embodiment of the contact terminal of the present invention.
The difference between this embodiment and the contact terminal 2 shown in FIGS. 5 and 6 is that the configuration of the connecting bar 3a and the connecting part 2f of the hoop material 3 is partially different.
That is, in the present embodiment, the contact terminal 6 is formed by bending along the surface of the punched plate surface of the metal plate, and a contact portion 6d that contacts the contact portion 5a of the electrical component 5 is provided on one end side thereof. In addition, the configuration is the same as that of the above-described embodiment in that the soldering portion 6e is provided on the other end side. However, in this embodiment, the soldering portion 6e is the other end side of the contact terminal 6. In this configuration, the connecting portion 6f of the hoop material 7 and the connecting bar 7a is formed on the other side end surface side.

  Also in this case, the connecting portion 6f can be formed widely by bringing the soldering portion 6e to one side end face side of the other end side of the contact terminal 6, so that the connecting portion 6f and the connecting rail 7a are connected to each other. When the contact terminal 6 is press-fitted into the housing 1 without being easily separated, the pressure input applied to the push-in portion 7b is reliably transmitted and can be easily press-fitted.

According to the above-described embodiment of the present invention, the plurality of contact terminals 2 and 6 are connected to the hoop materials 3 and 7 by the connecting portions 2f and 6f before being press-fitted into the housing 1, 6 contact portions 2d and 6d and soldering portions 2e and 6e are formed so as to be flush with the punched plate surface of the metal plate, and the plurality of contact terminals 2 and 6 are connected to the hoop materials 3 and 7. Since the connecting portions 2f and 6f to the crosspieces 3a and 7a are formed at positions different from the soldering portions 2e and 6e, the contact portions 2d and 6d of the contact terminals 2 and 6 and the soldering portions 2e and 6e are made of metal. Since it is the same surface as the punched plate surface of the plate, the contact surfaces 2d and 6d become flat and contact reliability is improved, and at the portions other than the soldering portions 2e and 6e, the connecting portions 2f with the connecting rails 3a and 7a. , 6f is provided, so the soldering part e, 6e over the entire surface can be subjected to a solder plating, it has become a thing that can be improved solderability.
In addition, when the contact terminals 2 and 6 are pressed into the housing 1 and the contact terminals 2 and 6 are cut from the connecting bars 3a and 7a of the hoop materials 3 and 7, the soldering portions 2e and 6e are stressed. This can prevent the occurrence of deformation and the like.

It is a disassembled perspective view which shows the socket apparatus for electrical components of this invention. It is the disassembled perspective view seen from the different direction of the socket apparatus for electrical components of this invention. It is a top view which shows the socket apparatus for electrical components of this invention. FIG. 4 is a cross-sectional view taken along line 4-4 of FIG. 3 of the present invention. It is a perspective view which shows the contact terminal connected with the hoop material of this invention. It is a side view which shows the contact terminal connected with the hoop material of this invention. It is a perspective view which shows the other Example of the contact terminal connected with the hoop material of this invention. It is a side view which shows the other Example of the contact terminal connected with the hoop material of this invention. It is a top view which shows the state which fractured | ruptured some conventional socket devices for electrical components. It is a side view of the contact part which shows the mounting state of the conventional socket device for electrical components.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1: Housing 1a: Mounting part 1b: Locking protrusion 1c: Vertical groove 1d: Locking groove 1e: Through-hole 1f: Concave groove 2: Contact terminal 2a: Press-fit part 2b: 1st arm 2c: 2nd arm 2d: Contact Part 2e: Soldering part 2f: Connecting part 2g: Swelling part 3: Hoop material 3a: Connecting bar 3b: Pushing part 4: Frame 4a: Outer plate 4b: Inner plate 4c: Locking hole 4d: Fixed piece 4e: Bullet Contact piece 4f: Locking piece 5: Electrical component 5a: Contact part 6: Contact terminal 6d: Contact part 6e: Soldering part 6f: Connecting part 7: Hoop material 7a: Connecting bar 7b: Pushing part

Claims (5)

A housing having a mounting portion to which an electrical component is mounted, and a plurality of through holes formed in the mounting portion, and a press fit into the housing so that one end is inserted through the plurality of through holes and protrudes into the housing A contact portion that is held and contacts a contact portion of an electrical component to be mounted, and a plurality of contact terminals that have a soldering portion that is soldered to the substrate, and the plurality of contact terminals are press-fitted into the housing It is connected to the hoop material by a connecting bar in front, and the contact portion and the soldering portion of the contact terminal are formed so as to be flush with the punched plate surface of the metal plate, and a plurality of the contacts the connecting portion between the connecting crosspiece of the terminal hoop, formed in a position different from the soldering portion in a state where the electrical component to the bottom inner formed in the mounting portion is placed The socket for electrical parts and wherein the elastically contacts the contact portion of said contact portion provided on one end side of the contact terminals in the inner bottom surface flush with the mounting portion the electrical component.   The contact terminal is formed by bending along the surface of the punched plate surface of the metal plate, the contact portion is provided on one end side thereof, the soldering portion is provided on the other end side, and the soldering portion is provided. 2. The socket device for an electrical component according to claim 1, wherein a connecting portion with the connecting bar is formed on one side end surface side of the other end side, and a connecting portion with the connecting bar is formed on the other side end surface side.   The contact terminal is formed by bending along the surface of the punched plate surface of the metal plate, the contact portion is provided on one end side thereof, the soldering portion is provided on the other end side, and the soldering portion is provided. 2. The socket device for an electric component according to claim 1, wherein the connecting portion is formed at the center of the other end side, and a connecting portion with the connecting rail is formed on both sides of the soldering portion.   4. The electrical component socket device according to claim 1, wherein the soldering portion is formed to be bent toward a mounting portion side of the electrical component mounted on the housing. 5.   The hoop material is formed with a pressing portion that is pressed when the contact terminal is press-fitted into the housing, and the center position of the pressing portion and the center position of the pressing portion of the contact terminal are on the same center line in the press-fitting direction. The socket device for an electrical component according to any one of claims 1 to 4, wherein the socket device is combined.

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