KR101032274B1 - Socket for attaching electronic component - Google Patents

Abstract

Provided is a socket for attaching an electronic component suitable for miniaturization.

A plurality of contacts 25 each having an electronic component accommodating portion 23 surrounded by a circumferential wall erected from a circumferential side of the bottom plate, and a socket housing 24 into which the electronic components 22 are inserted into the electronic component accommodating portion 23, respectively having elastic contact pieces. A plurality of contact groups 55, 55. And contact groups 55 and 55 provided from the peripheral edges of the bottom plate 26 of the electronic component accommodating portion toward the direction substantially orthogonal to the sides, respectively. In this case, the end portions of one part or all of the elastic contact pieces 52 of the other contact group 55 are directed to the elastic contact pieces 52 side of the one contact group 55.

Description

Socket for attaching electronic parts {SOCKET FOR ATTACHING ELECTRONIC COMPONENT}             

1 is a cross-sectional view showing a state of use of the socket for attaching an electronic component according to the present invention.

In FIG. 2, (a) is a top view which shows the socket for attachment of an electronic component in FIG. 1, (b) is a side view, and (c) is a bottom view.

3, (a) is a plan view showing the socket housing of FIG. 1, (b) is a side view thereof, and (c) is a bottom view thereof.

In FIG. 4, (a) is a front view which shows the electronic component fixing mechanism of FIG. 1, (b) is a top view, and (c) is a side view.

In FIG. 5, (a) is a front view which shows the shield plate of FIG. 1, (b) is the same top view.

In FIG. 6, (a) is a front view showing the contact of FIG. 1, (b) is a top view, and (c) is a side view.

FIG. 7 is a plan view illustrating the printed wiring board of FIG. 1. FIG.

8 is a plan view showing another example of the socket for attaching an electronic component according to the present invention.                 

Fig. 9 is a plan view showing an example of a conventional socket for attaching an electronic component.

Fig. 10 is a plan view showing another embodiment of the socket for attaching an electronic component of Fig. 9.

Explanation of symbols on the main parts of the drawings

20: socket for attaching electronic parts

21: printed wiring board

22: electronic component 23: electronic component accommodating part

24 socket socket 25 contact

26: bottom plate 28, 29, 30: side walls

31: through-hole 32: suction part for conveyance

33: shield plate 34: contact insertion groove

35: contact mounting groove 36: electronic component fixing mechanism

37: cutting portion 38: mechanism attachment portion

39: fixed protrusion 40: elastic fixing piece

41: attachment piece 42: coupling hole

43: exposed recess 44: upper edge cover

45: mounting pawl 46: fixed piece

47: bonding stone piece 48: crank piece

49: mounting portion 50: terminal piece                 

51: intermediate spring part 52: elastic contact piece

55: contact group 55a: contact group

55b: contact group

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention mainly relates to a socket for attaching an electronic component for attaching electronic components such as a camera module and an IC unit to a printed wiring board.

BACKGROUND ART Conventional electronic devices such as mobile telephones have a printed wiring board therein, and attach such electronic components, such as a camera module or other semiconductor elements, to the printed wiring board. The electronic component, which is weak in heat, can be directly attached by soldering and connected to the printed wiring board using a socket for attaching the electronic component as shown in FIG.

The socket for attaching an electronic component 1 includes a socket housing 3 having an electronic component accommodating portion 2 surrounded by a circumferential wall formed from four sides of a rectangular bottom plate, and a camera module, a semiconductor element, etc. protruding from the bottom plate. A plurality of contacts 5, 5 having an elastic contact piece 5a which is in elastic contact with the terminal portion of the electronic component 4 of the present invention. And supporting the electronic component 4 such as a camera module or a semiconductor element in the electronic component accommodating portion 2, so that the terminal portion of the electronic component 4 is in contact with the elastic contact piece 5a of the contact 5. Is electrically connected to the printed wiring board via the contact 5, 5. Are arrange | positioned side by side so that it may be parallel in a direction orthogonal to a bottom plate front side or a back side.

As shown in Fig. 10, the socket 6 for attaching the electronic component has a contact 8, 8,... The contact portions 8, 8... So that the elastic contact pieces protrude into the electronic component accommodating portion 9 toward the center from the inner surface of the four sides or the side walls of the bottom plate. It is also known to have.

Contacts 8 and 8 of the socket for attaching the electronic component 6. The elastic contact pieces are arranged in parallel with each other in the direction orthogonal to each side from each side of the side of the bottom plate periphery, and contact groups 8A, 8A. To form.

However, in the socket for attaching an electronic component shown in Fig. 9, the contacts are arranged in parallel from the front side or the rear side of the bottom plate toward the center side, and when the number of contacts increases, the number of contacts of the socket housing is increased. There is a problem that the width is not suitable for miniaturization.                         

In the socket for attaching an electronic component shown in FIG. 10, the length of the elastic contact piece of each contact is shortened or the distance between the contact groups is sufficiently sufficient to prevent interference between the contact groups on the sides adjacent to each other. As a result, there is a problem that unnecessary space is generated in the center portion or four corner portions, and miniaturization is difficult.

Accordingly, the present invention has been made in consideration of the above-described problems of the prior art, and an object thereof is to provide a socket for attaching an electronic component suitable for miniaturization.

The invention described in claim 1 to solve the above-mentioned conventional problems and achieve the desired object is to provide an electronic component accommodating portion enclosed by a circumferential wall formed from a side of a circumference of a bottom plate. And a socket housing into which the electronic component is inserted into the electronic component receiving portion.

A plurality of contacts each having an elastic contact piece protruding from the bottom plate of the housing to the electronic component accommodating portion, wherein each of the elastic contact pieces is on one side of the side around the bottom plate. A plurality of contact groups arranged in parallel with each other in a direction substantially orthogonal to this from (一邊 側),

In an electronic part mounting socket formed by supporting an electronic part in the electronic part accommodating part such that a terminal part of the bottom surface of the electronic part is electrically connected to an elastic contact piece of the contact.

One side of the said contact group provided in the said contact group from the side of each circumference of the bottom plate of the said electronic component accommodating part to the direction orthogonal to the side of the circumference, and adjacent to each other. It is set as the arrangement | positioning which the front-end | tip part of one part or all part of the elastic contact piece of another contact group faces to the side part of the elastic contact piece of the contact group of the said contact group.

In addition to the structure of Claim 1, the invention of Claim 2 is equipped with the flat conveyance suction part enclosed by the front-end | tip part of a contact group in the center part of the bottom plate, It is characterized by the above-mentioned. .

In addition to the constitution of claim 1 or 2, the invention according to claim 3 includes an attachment portion fixed to a peripheral wall of the socket housing, and an end portion of one of the attachment portions. An intermediate spring portion that is bent from the recess and forms an inverted U-shape with the attachment portion, and is bent in an inclined direction from an end opposite to the attachment portion of the intermediate spring portion and in the electronic component accommodation portion. An elastic contact piece protruding from the bottom plate is provided.

(Example)

Next, an embodiment of an electronic component mounting socket according to the present invention will be described with reference to Figs.

1 is a view showing a state in which a socket for attaching an electronic component is attached to a printed wiring board, where reference numeral 20 is a socket for attaching an electronic component, 21 is a printed wiring board, and 22 is a camera module. Electronic components).

The socket 20 for attaching an electronic component is supported by a socket housing 24 having an electronic component accommodating portion 23 in which the electronic component 22 is accommodated, and a terminal pattern of the printed wiring board 21. pattern) 21a, 21a... A plurality of contacts 25, 25. And the electronic components 22 are accommodated in the electronic component accommodating portion 23 so that the contacts 25, 25. The electronic component 22 is attached to the printed wiring board 21 in an electrically connected state.

As shown in Fig. 3, the socket housing 24 is formed of an insulating material such as a synthetic resin material such that the circumferential walls 27, 28, 29, and 30 formed from four sides of the square bottom plate 26 and the bottom plate. (I) an electronic component accommodating portion 23 formed integrally with one another and enclosed by the bottom plate 26 and circumferential walls 27, 28, 29, and 30 on the front, rear, left, and right sides to accommodate the electronic component 22 is formed.

The bottom plate 26 includes a plurality of through holes 31 and 31 penetrating up and down. It is slightly longer than about half of the distance between the opposing side walls extending in the direction from the four sides of the bottom plate 26 toward the other side facing each other. It is formed into a short slit shape.

The through holes 31 and 31. In the through-hole group in each of the four sides of the bottom plate adjacent to each other, forming a through-hole group arranged in parallel to each other on the opposite side from the four sides of the bottom plate 26. The distal end portion of the other through-hole group faces the side portion of one through-hole group.

The through-hole groups in each side are arranged so as to be biased in the direction opposite to the neighboring through-hole group by the length of the length of the neighboring through-hole 31 along the side at least.

Further, a flat conveying suction part 32 is formed at the center of the bottom plate 26 surrounded by the tip of each through hole group, and the conveying suction part 32 is sucked by a nozzle. It can be conveyed to an automated machine or the like.

Each side wall 27, 28, 29, 30 is formed in the shape of a flat plate formed from four side portions of the bottom plate 26, respectively, and a shield plate made of a conductive material on the outer surface thereof. 33, 33... This is inserted and the outer surface is covered.

Each sidewall 27, 28, 29, 30 has a longitudinal contact insertion groove 34, 34, which is opened inwardly and downwardly and communicates with the through hole 31; Is formed. That is, a plurality of contact insertion grooves 34, 34. Side by side parallel to the peripheral wall 27, 28, 29, 30 in the longitudinal direction, the contact insertion groove group is arranged to be biased to one side of the peripheral wall 27, 28, 29, 30 in accordance with the position of the through hole 31.

Slit-shaped contact attachment grooves 35 and 35 are formed at both edges of the contact insertion groove 34.

An electronic component fixing mechanism for fixing the electronic component 22 inserted into the electronic component accommodating portion 23 at an end portion on the side opposite to the contact insertion groove 34 group of the side walls 27, 28, 29, and 30, respectively. A cutout portion 37 into which the insert 36 is inserted is formed, and the cutout portion 37 cuts the peripheral wall by the width of the electronic component fixing mechanism 36.

In addition, a mechanism attaching portion 38 to which the electronic component fixing mechanism 36 is attached is formed at the lower outer side of the cutout 37.

As shown in Fig. 4, the electronic component fixing mechanism 36 has an elastic fixing piece 40 having a hook-like fixing protrusion 39 at its tip and an attachment piece fixed to the mechanism attaching part 38. 41), and is integrally formed by bending a plank-shaped member made of stainless steel.

The fixing projection 39 is formed in a right triangle shape with the bottom side downward, and is bent at a right angle from the edge of the tip of the elastic fixing piece 40 to protrude toward the electronic component accommodating portion 23 and the upper portion of the electronic component 22 is formed by the side of the bottom. It is adapted to join the edges.                     

The elastic fixing piece 40 is elastically deformed at the boundary with the attachment piece 41 as the base end. When the electronic part 22 is inserted into the electronic part accommodating part 23, the electronic part 22 Is inserted while pressing the inclined side portion of the fixing protrusion 39 to bend the elastic fixing piece 40 to the outside, and after insertion, the elastic fixing piece 40 is restored to its original position by elasticity. The fixing protrusion 39 is adapted to engage the upper edge portion of the electronic component 22.

The attachment piece 41 has a slit shape in which an end portion 41a on the side opposite to the elastic fixing piece 40 is bent in an inverted U shape, and the bent portion 41a is opened on the upper surface formed in the mechanism attachment portion 38. The electronic component fixing mechanism 36 is attached to the mechanism attachment portion 38, that is, the socket housing 24 by being press-fitted into the coupling hole 42 of the groove.

The lower end portions of the side walls 27, 28, 29, and 30 are formed with exposed recess portions 43 for exposing the terminal portions of the contacts 25 and 25, and the terminal portions of the contacts 25 and 25 are connected to the bottom surface of the socket housing 24. It is supposed to expose on about the same surface.

As shown in Fig. 5, the shield plate 33 is formed in a flat plate shape, and the upper edge portion includes an upper edge cover 44 covering the upper edge of the circumferential wall and an attachment pole formed in a U shape so as to face downward. Fixing pieces 45 and 45 integrally provided, and fixing pieces 46 and 46 fixed to the lower edges by soldering or the like on fixed patterns 21b and 21b formed on the printed wiring board 21. It is provided with integrally.

In addition, the shield plate 33 is provided with a coupling stone piece 47 bent at right angles inward to one edge thereof, and a crank piece formed in a crank shape on the other edge thereof. The crank piece 48 is provided, and the engaging piece 47 of the neighboring shield plate and the crank piece 48 of the other shield plate are mutually connected, and the outer periphery of the socket housing 24 is also formed in each part. It is suitably covered.

In addition, since the bottom plate is square, the shield plate may have the same shape in the same manner as the width of each circumferential wall.

As shown in Fig. 6, the contact 25 has a flat plate-shaped attachment portion 49, a terminal piece portion 50 bent from one end of the attachment portion 49, and a terminal piece portion 50 of the attachment portion 49 on the opposite side. An intermediate spring part 51 that bends from an end and forms an attachment U and an inverted U, and an elastic deformation through an intermediate spring part 51 that is bent in an oblique direction from an end opposite to the attachment part 49 of the intermediate spring part 51 It is provided with an elastic contact piece 52, and is integrally formed by bending through a conductive plate material such as a copper alloy.

The attachment portion 49 is formed wider than the width of the contact insertion groove 34, and the contact portion 25 is pressed against the socket housing 24 by inserting the edge portion into the contact attachment grooves 35 and 35 formed on the side of the contact insertion groove 34. It is intended to be attached.

The intermediate spring part 51 is elastically deformed by making the boundary part with the attachment part 49 a base end.                     

The elastic contact piece 52 is formed in elongate board shape, the front-end | tip part is formed in circular arc shape, and the contact part 52a is provided in the top part of the circular arc part.

The contact portion 52a is pressed into the lower surface of the electronic component 22 when the electronic component 22 is accommodated in the electronic component accommodating portion 23 so as to elastically contact the terminal portion of the electronic component 22.

When the attachment portion 49 of the contact 25 is inserted into the contact insertion groove 34 to attach the contact 25 to the socket housing 24, the elastic contact piece 52 protrudes through the through hole 31 into the upper surface side of the bottom plate, that is, into the electronic component accommodating portion 23. It is. In addition, even when the elastic contact piece 52 is press-fitted downward when the electronic part 22 is accommodated in the electronic part accommodating portion 23, the through-hole 31 is evacuated so as not to contact the bottom plate 26.

Each contact 25, 25 attached to the socket housing 24... Is a contact group 55, 55... Arranged in parallel from one side of the bottom plate 26 toward the other side opposite to the bottom plate 26. To form.

Each contact group 55, 55... Is provided in a direction perpendicular to each side, i.e., in the contact groups 55 and 55 provided on each side of the four sides of the bottom plate 26 facing each other and facing each other. . The elastic contact pieces 52, 52 of the other contact group on the elastic contact piece 52 side of one contact group. A portion of the front end portion of the contact portion, and the remaining portion of the elastic contact pieces 52, 52 surrounds the suction part 32 for conveyance at a portion not disposed with the side portion of the elastic contact piece 52 of the neighboring contact group. It is supposed to be.

And each contact group 55, 55. Is arranged to be inclined in the direction on the opposite side to the neighboring contact group along each side by the length of the longitudinal direction of the elastic contact piece 52 of the contact group in at least neighboring sides, and the distal end of each contact group is The space is filled so as to be close to the side tip side of the neighboring contact group.

Therefore, by arranging the contact groups in a biased manner and by arranging the adjacent contact groups in the space, the extra space of the bottom plate 26 can be omitted, thereby miniaturizing the overall shape of the socket for attaching the electronic component.

On the other hand, in the printed wiring board 21 to which the socket for attaching the electronic component is attached, as shown in Fig. 7, the terminal patterns 21a, 21a,. Is printed. That is, the terminal patterns 21a, 21a... A group of patterns in parallel with each other are arranged so as to be biased along four sides of the rectangle.

Further, fixing patterns 21b and 21b in which the fixing pieces 46 of the shield plate 33 are fixed by soldering or the like are formed on both sides of the pattern group by printing.

In addition, in the above embodiment, an example in which the bottom plate of the socket housing is formed into a square has been described, but the bottom plate may be rectangular or may have a polygonal shape or the like.                     

In the above embodiment, in the contact groups 55 and 55 of each of the four sides adjacent to each other, the elastic contact pieces 52, 52 of the other contact group on the elastic contact piece 52 side of the one contact group. Although an example has been described in which the distal end portion of the contact portion faces, the distal end portion of the entire elastic contact piece of the other contact group may be disposed on the side of the elastic contact piece 52 of the one contact group. At this time, the space between each contact group becomes the smallest.

In addition, the arrangement of the contact groups may be such that the opposing contact groups 55b, 55b are inserted between the opposing contact groups 55a, 55a as shown in FIG.

In this case, the arrangement of the through-holes of the socket housing is also formed in accordance with the arrangement of each contact group, and the arrangement of the opposing through-hole groups is inserted between the opposing through-hole groups.

The socket for an electronic component according to the present invention can be miniaturized by omitting unnecessary space by arranging the contact group so as to be biased along each side.

In addition, by arranging the contact groups in an inclined manner, the mounting portion of the electronic component fixing mechanism can be sufficiently taken to support the electronic component in a stable state.                     

In addition, it can be sucked and conveyed by a nozzle, so that the work efficiency can be improved by adapting to an automated machine and the cost can be reduced.

Claims (3)

An electronic part accommodating part enclosed by a peripheral wall erected from a circumferential side of the bottom plate, and a socket housing into which the electronic part is inserted into the electronic part accommodating part, A plurality of contacts each having an elastic contact piece protruding from the bottom plate of the housing to the electronic component accommodating portion, wherein each of the elastic contact pieces is on one side of the side around the bottom plate. And a plurality of contact groups arranged in parallel with each other in a direction orthogonal thereto from (一邊 側), In an electronic part mounting socket formed by supporting an electronic part in the electronic part accommodating part such that a terminal part of the bottom surface of the electronic part is electrically connected to an elastic contact piece of the contact. In the contact group provided at the sides of each said circumference | surroundings which are provided in the direction orthogonal to the direction orthogonal to the side of the circumference | surroundings of the bottom plate of the said electronic component accommodating part, one side A socket for mounting an electronic component, characterized in that the distal end portion of a part or all of the elastic contact pieces of the other contact group faces the side portions of the elastic contact pieces of the contact group. The method according to claim 1, The socket housing has a flat conveyance suction part enclosed by a tip portion of a contact group at the center of the bottom plate, and the socket for an electronic component attachment. The method according to claim 1 or 2, Each contact constituting the contact group is bent from an end portion of one of the attachment portions fixed to the circumferential wall of the socket housing and one of the attachment portions to form an inverted U-shape with the attachment portion. And an elastic contact piece that bends in an oblique direction from an end opposite to the attachment portion of the intermediate spring portion and protrudes from the bottom plate in the electronic component accommodating portion. A socket for attaching electronic parts, characterized in that.

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