阅读说明：本技术 插座 (Socket with improved structure ) 是由 川端将斗 下山博司 于 2019-05-28 设计创作，主要内容包括：根据本发明的插座,各个构件的尺寸公差不会累积而变大,结构简单,成本低且耐久性变高。根据本发明的插座,包括：端子单元组件,多个端子单元沿着纵向延伸的端子单元沿着与纵向正交的横向排列；框架构件,具备容纳所述端子单元组件的组件容纳凹部。各端子单元包括：沿针纵向延伸的端子保持部；多个端子,其具备由所述端子保持部保持的本体部、比所述端子单元上表面更向上方突出或比所述端子单元下表面更向下方突出的接触部、用于使所述本体部和所述接触部连结的接触臂部；以及沿着纵向延伸的外壳壁。所述端子保持部包括沿着横向突出的多个突起,多个所述突起中的至少一个突起抵接于相邻的端子单元的外壳壁。(According to the socket of the present invention, the dimensional tolerance of each component is not accumulated and increased, the structure is simple, the cost is low, and the durability is high. The socket according to the present invention comprises: a terminal unit assembly in which a plurality of terminal units extending in a longitudinal direction are arranged in a lateral direction orthogonal to the longitudinal direction; and a frame member having a module accommodating recess for accommodating the terminal unit module. Each terminal unit includes: a terminal holding portion extending in a longitudinal direction of the pin; a plurality of terminals each including a main body held by the terminal holding portion, a contact portion projecting upward from an upper surface of the terminal unit or projecting downward from a lower surface of the terminal unit, and a contact arm portion for connecting the main body and the contact portion; and a housing wall extending in a longitudinal direction. The terminal holding portion includes a plurality of projections projecting in a lateral direction, at least one of the projections abutting against the housing wall of the adjacent terminal unit.)

1. A socket, comprising:

a frame member having a pair of first frame portions extending in a longitudinal direction and a pair of second frame portions extending in a transverse direction orthogonal to the longitudinal direction, the pair of first frame portions and the pair of second frame portions being connected to each other so that the frame member is formed into a substantially rectangular structure, the frame member defining a module accommodating recess between the pair of first frame portions and the pair of second frame portions; and

a terminal unit assembly configured to be substantially located in the assembly receiving recess, the terminal unit assembly including a plurality of terminal units extending in a longitudinal direction and adjacent terminal units being aligned in a lateral direction,

the terminal unit includes a terminal holding portion extending in the longitudinal direction, the terminal holding portion spanning the module accommodating recess portion and engaging with the pair of second frame portions, the terminal holding portion including a plurality of protrusions protruding in the lateral direction,

the terminal unit includes a housing wall extending in a longitudinal direction, the housing wall and the terminal holding portion of the terminal unit are arranged adjacent to each other in a lateral direction, at least one of the plurality of projections in the terminal holding portion abuts against the housing wall of an adjacent terminal unit,

the terminal unit includes a plurality of terminals held by the terminal holding portion, and the terminals include contact portions protruding upward from an upper surface of the terminal unit and/or protruding downward from a lower surface of the terminal unit.

2. The socket according to claim 1, wherein,

at least one of the protrusions abuts against the housing wall of the adjacent terminal unit via an adhesive.

3. The socket according to claim 1, wherein,

at least one of the protrusions is deformed by abutting against the housing wall of the adjacent terminal unit.

4. The socket according to claim 1, wherein,

one or more of the protrusions are adhesive protrusions, and the tip end surfaces of the adhesive protrusions abut against the housing walls of the adjacent terminal units via an adhesive;

one or more of the protrusions are contact protrusions whose tip end faces are deformed by abutting against the housing walls of the adjacent terminal units.

5. The socket according to claim 4, wherein,

the protruding amount of the contact protrusion in the lateral direction is larger than the protruding amount of the bonding protrusion in the lateral direction.

6. The socket according to claim 4, wherein,

spaces are formed between adjacent ones of the projections.

7. The socket according to claim 4, wherein,

the protrusions are arranged in such a manner that the contact protrusions and the bonding protrusions are alternately arranged in a longitudinal direction.

8. The socket according to claim 4, wherein,

the contact protrusion of the terminal unit is different in position from the contact protrusion of the adjacent terminal unit in the longitudinal direction.

9. The socket according to claim 8, wherein,

the contact protrusions of the terminal unit assembly are staggered in a top view.

10. The socket according to claim 1, wherein,

the pair of first frame portions and the pair of second frame portions have top surfaces coplanar with each other, respectively.

11. The socket according to claim 1, wherein,

the module accommodating recess is bounded in the longitudinal direction by the pair of second frame portions and in the transverse direction by the pair of first frame portions.

12. The socket according to claim 11, wherein,

the assembly accommodating recess has a substantially rectangular structure.

13. A method of manufacturing a socket, wherein,

the socket is the socket of any one of claims 4-8,

the terminal unit assembly is assembled by compressing the plurality of terminal units arranged in the lateral direction and deforming the tip end faces of the contact protrusions in abutment with the housing walls of the adjacent terminal units.

14. A terminal unit assembly configured to be retained in the frame member to form a socket, the terminal unit assembly comprising:

a first terminal unit including a first terminal holding portion and a first housing wall, the first terminal holding portion including an elongated first beam portion extending in a longitudinal direction and having opposite ends in the longitudinal direction, and a plurality of first terminals, the first terminal holding portion having a plurality of first terminal holding groove portions accessible at positions laterally distant from the first housing wall, the plurality of first terminals being held by the first beam portion to the corresponding first terminal holding groove portions, respectively, each of the first terminals having an upper contact portion protruding upward than an upper surface of the first beam portion, the first beam portion having a plurality of protrusions protruding from the first beam portion at positions laterally distant from the first housing wall, the protrusions being located between adjacent first terminal holding groove portions; and

a second terminal unit including a second terminal holding portion and a second housing wall arranged adjacent to each other in a lateral direction, the second terminal holding portion including an elongated second beam portion extending in the longitudinal direction and having opposite ends in the longitudinal direction, and a plurality of second terminals held by the second beam portion, the second terminals respectively having upper contact portions protruding upward than an upper surface of the second beam portion,

the plurality of protrusions of the first beam portion abut against the second housing wall.

15. The terminal unit assembly of claim 14,

the first housing wall and the first beam portion are laterally aligned adjacent to each other.

16. The terminal unit assembly of claim 14,

the second beam section has a plurality of protrusions protruding from the second beam section at positions laterally distant from the second housing wall.

17. The terminal unit assembly of claim 16, further comprising:

a third terminal unit including a third terminal holding portion and a third housing wall arranged adjacent to each other in a lateral direction, the third terminal holding portion including an elongated third beam portion extending in the longitudinal direction and having opposite ends in the longitudinal direction, a pair of third engaging portions connected to the opposite ends in the longitudinal direction of the third beam portion, and a plurality of third terminals held by the third beam portion, the third terminals respectively having upper contact portions protruding upward than an upper surface of the third beam portion,

the plurality of protrusions of the second beam portion abut the third housing wall.

18. The terminal unit assembly of claim 14,

the first terminal unit has a pair of first engaging portions connected to both ends of the first beam portion in the longitudinal direction,

the second terminal unit has a pair of second engaging portions connected to both ends of the second beam portion in the longitudinal direction,

the pair of first engaging portions and the pair of second engaging portions are connected to the frame member.

19. The terminal unit assembly of claim 18,

the pair of first engaging portions each have a first engaging recess formed in a lower surface thereof,

the pair of second engaging portions has a second engaging recess formed in a lower surface thereof, respectively.

20. The terminal unit assembly of claim 14,

one or more of the protrusions are bonding protrusions, and the tip end surfaces of the bonding protrusions are abutted against the second housing wall through an adhesive;

one or more of the protrusions are contact protrusions whose tip end surfaces are deformed by the second housing wall.

21. The terminal unit assembly of claim 20,

the protruding amount of the contact protrusion in the lateral direction is larger than the protruding amount of the bonding protrusion in the lateral direction.

22. The terminal unit assembly of claim 20,

spaces are formed between adjacent ones of the projections.

23. The terminal unit assembly of claim 20,

the protrusions are provided in such a manner that the contact protrusions and the bonding protrusions are alternately arranged in a longitudinal direction.

24. The terminal unit assembly of claim 14,

the first terminals have main body portions held in the corresponding first terminal holding groove portions, respectively, and upper contact arm portions extending obliquely from the main body portions in the longitudinal direction, the upper contact portions being provided at free ends of the upper contact arm portions.

25. The terminal unit assembly of claim 14,

the first terminal includes a lower contact arm portion extending obliquely from the body portion in a longitudinal direction, and a lower contact portion provided at a free end of the lower contact arm portion, the lower contact portion protruding more downward than a lower surface of the first beam portion.

26. A terminal unit assembly configured to be retained in the frame member to form a socket, the terminal unit assembly comprising:

a first terminal unit including a first terminal holding portion and a first housing wall, the first terminal holding portion including an elongated first beam portion extending in a longitudinal direction and having opposite ends in the longitudinal direction, and a plurality of first terminals, the first terminal holding portion having a body portion held by the first beam portion, upper contact arm portions each extending obliquely in the longitudinal direction from the corresponding body portion, and upper contact portions each provided at a free end of the corresponding upper contact arm portion, each upper contact portion projecting more upward than an upper surface of the first beam portion, the first beam portion having a plurality of projections projecting from the first beam portion at positions laterally remote from the first housing wall; and

a second terminal unit including a second terminal holding portion and a second housing wall arranged adjacent to each other in a lateral direction, the second terminal holding portion including an elongated second beam portion extending in the longitudinal direction and having opposite ends in the longitudinal direction, and a plurality of second terminals held by the second beam portion, the second terminals respectively having upper contact portions protruding upward than an upper surface of the second beam portion,

the plurality of protrusions of the first beam portion abut against the second housing wall.

Technical Field

The present invention relates to a socket.

Background

Conventionally, when an IC tester is used to perform a test, a semiconductor device, which is an Integrated Circuit (IC) or a large scale integrated circuit (LSI) and includes a Pin Grid Array (PGA) type terminal, is connected to a circuit board, such as a printed circuit board. In this case, the terminals of the semiconductor device are electrically connected to conductive traces (trace) of the circuit board via sockets mounted on the circuit board (see, for example, patent document 1).

Fig. 13 is a perspective view of a socket in the prior art.

In the drawings, reference numeral 811 denotes a frame member of the socket housing, which is used for connecting the semiconductor device to the circuit substrate and has a substantially planar shapeThe member is shaped like a letter and has an opening 812 formed therein. The end of the opening portion 812 is closed by a mounting member 814, and the mounting member 814 forms a housing together with the frame member 811. A plurality of holes 813 are formed in the frame member 811. The hole 813 is used when the housing is fixed to a printed circuit board (not shown).

Reference numeral 821 denotes a general structureThe plate member is a rectangular plate member, and a plurality of grooves are formed in both arm portions of the plate member. Each of a plurality of contact pins 861 is inserted into a corresponding slot of plate member 821. In a state where the plurality of plate members 821 are overlapped in the thickness direction, the plurality of plate members 821 are attached to the opening portion 812 of the frame member 811, and the end portion of the opening portion 812 is closed by the attachment member 814, whereby the plate members 821 are fixed to the frame structureAnd (ii) piece 811.

Patent document 1: japanese unexamined patent publication No. 2005-174622.

Disclosure of Invention

However, in the socket of the related art described above, since the plurality of plate members 821 are stacked in the thickness direction, even if the dimensional tolerance in the thickness direction of each plate member 821 is small, the overall dimensional tolerance in the stacking direction becomes large, so that the positional accuracy of each contact pin 861 may be lowered. Further, since both ends of plate member 821 in the long dimension direction are fixed by frame member 811, in the case where the thermal expansion coefficients of plate member 821 and frame member 811 are different from each other, when the temperature change of the surrounding environment of the socket is large, thermal stress will be generated in the respective members.

The present invention has been made to solve the above-described problems of the prior art, and an object of the present invention is to provide a socket having a simple structure, low cost, and high durability, in which dimensional tolerances of respective members are not accumulated and increased.

In order to achieve the above object, a socket according to the present application includes: a terminal unit assembly including a plurality of terminal units, the plurality of terminal units extending in a longitudinal direction and being arranged in a lateral direction orthogonal to the longitudinal direction; and a frame member having a module accommodating recess for accommodating the terminal unit module. The terminal unit includes: a terminal holding portion extending along the longitudinal direction; a plurality of terminals each including a main body held by the terminal holding portion, a contact portion projecting upward from an upper surface of the terminal unit or projecting downward from a lower surface of the terminal unit, and a contact arm portion for connecting the main body and the contact portion; and an outer housing wall extending in the longitudinal direction, the terminal holding portion including a plurality of projections projecting in the lateral direction, at least one of the plurality of projections abutting against the outer housing wall of the adjacent terminal unit.

In another receptacle, the at least one protrusion abuts against the housing wall of the adjacent terminal unit via an adhesive.

In yet another receptacle, the at least one projection is deformed by abutting against the housing wall of the adjacent terminal unit.

In yet another socket, the protrusion includes: an adhesive protrusion having a tip end surface abutting against the housing wall of the adjacent terminal unit via an adhesive; and a contact protrusion whose tip end face is deformed by abutting against the housing wall of the adjacent terminal unit.

In still another socket, a protruding amount of the contact protrusion in the lateral direction is larger than a protruding amount of the adhesion protrusion in the lateral direction.

In still another socket, a space is formed between the contact protrusion and the bonding protrusion.

In still another socket, the contact protrusions and the bonding protrusions are arranged alternately in the longitudinal direction.

In still another socket, a position in the longitudinal direction of the contact protrusion is different from a position in the longitudinal direction of the contact protrusion of an adjacent terminal unit.

In still another socket, the plurality of contact protrusions of the terminal unit assembly are arranged alternately in a plan view.

The present invention provides a method of manufacturing a socket in which the terminal unit assembly is assembled by compressing a plurality of terminal units arranged in the lateral direction toward the lateral direction and deforming tip end surfaces of the contact protrusions in contact with housing walls of the adjacent terminal units.

According to the present invention, the dimensional tolerances of the respective members of the socket do not accumulate and become large. Therefore, the structure of the socket can be simplified, the cost can be reduced, and the durability can be improved.

Drawings

Fig. 1 is a perspective view of the socket in the present embodiment.

Fig. 2 is a plan view of the socket in the present embodiment.

Fig. 3 is a side view of the socket in the present embodiment.

Fig. 4 is a perspective view of the small terminal unit assembly in the present embodiment.

Fig. 5 is a plan view of the small terminal unit assembly in this embodiment.

Fig. 6 is a perspective view showing a side wall side of the first terminal unit in the present embodiment.

Fig. 7 is a perspective view showing the terminal side from the first terminal unit in the present embodiment.

Fig. 8 is a perspective view showing a side wall side from the second terminal unit in the present embodiment.

Fig. 9 is a perspective view showing the terminal side from the second terminal unit in the present embodiment.

Fig. 10 is an enlarged view of a portion a in fig. 7, and is a perspective view of a main portion of the first terminal unit in the present embodiment.

Fig. 11 is an enlarged side view of a portion a in fig. 7, which is a side view of a main portion of the first terminal unit in the present embodiment.

Fig. 12 is an enlarged top view of a portion a in fig. 7, and is an enlarged top view of a main portion of the first terminal unit in the present embodiment.

Fig. 13 is a perspective view of a socket in the prior art.

Description of the reference numerals

1: socket 11, 811: frame member

11 a: the pressing plate 11 b: pressure plate accommodating recess

11 c: edge portion 11 x: longitudinal frame part

11 y: the horizontal frame portion 12: component receiving recess

13: guide hole 14: frame member for guide

20: terminal unit assembly 21A: first terminal holding part

21B: second terminal holding portion 22A: first beam section

22B: second beam portion 23A: first terminal holding groove portion

23B: second terminal holding groove portion 25: engaging part

25A: first engaging portion 25B: second engaging part

26A: first engaging recess 26B: second engaging recess

27A: first bonding protrusion 27B: second bonding protrusion

28A: first contact protrusion 28B: second contact protrusion

29: notch 30: terminal unit

30A: first terminal unit 30B: second terminal unit

31A: first side wall portion 31B: second side wall part

32A: first upper wall portion 32B: second upper wall part

33A: first lower wall portion 33B: second lower wall part

61: terminal with a terminal body

61A: first terminal 61B: second terminal

62A: first body portion 62B: second body part

63A: first contact arm portion 63B: second contact arm part

64: contact part

64A: first contact portion 64B: second contact part

812: opening 813: hole(s)

814: mounting member 821: plate member

861: contact pin

Detailed Description

Hereinafter, the present embodiment will be described in detail with reference to the accompanying drawings.

Fig. 1 is a perspective view of a socket in this embodiment, fig. 2 is a plan view of the socket in this embodiment, and fig. 3 is a side view of the socket in this embodiment.

In the drawings, reference numeral 1 denotes a socket in the present embodiment, which has: a terminal unit assembly 20 in which a plurality of terminal units 30 are assembled, the plurality of terminal units 30 including a plurality of terminals 61; and a frame member 11 as a frame body for holding the terminal unit assembly 20. The number of terminal units 30 included in the terminal unit assembly 20 and the number of terminals 61 included in each terminal unit 30 may be changed as appropriate.

The frame member 11 is a flat plate-like member, the shape of the frame member 11 in a plan view, that is, the shape in the X-Y plane, more specifically, the outer shape in the X-Y plane defined around the substantially rectangular module accommodating recess 12 is formed substantially in a rectangular shape, and the frame member 11 is a member formed integrally from a metal material such as steel. Also, in a state where the terminal unit modules 20 are accommodated in the module accommodating recess portions 12, the shape in the X-Y plane of the socket 1 has a thick plate-like outer shape having a substantially rectangular shape, and the upper surface (surface in the positive Z-axis direction) and the lower surface (surface in the negative Z-axis direction) of the socket 1 are formed to be flat surfaces parallel to each other.

The frame member 11 includes: a pair of vertical frame portions 11X extending in the X-axis direction; and a pair of cross frame portions 11Y extending in the Y-axis direction. The engaging portions 25 formed at both ends of the terminal unit 30 in the X-axis direction are engaged with the edge portions 11c of the lateral frame portions 11y facing the module accommodating recess 12. Specifically, the edge portion 11c includes a comb-tooth-shaped portion, not shown, and an engaging recess 26 formed in a lower surface of the engaging portion 25 is engaged with the comb-tooth-shaped portion. Further, the engaging portion 25 at the X-axis negative direction end of the terminal unit 30 is bonded to the edge portion 11c of the lateral frame portion 11y located on the X-axis negative direction side, the engaging portion 25 at the X-axis positive direction end of the terminal unit 30 is not bonded to the edge portion 11c of the lateral frame portion 11y located on the X-axis positive direction side, and since there is a gap between the edge portion 11c and the engaging recess portion 26, the engaging portion 25 is displaceable in the X-axis direction with respect to the edge portion 11 c. Here, a platen accommodating recess 11b is formed in the upper surface of the horizontal frame portion 11y located on the positive X-axis direction side, and the platen 11a is accommodated in the platen accommodating recess 11 b. The vicinity of the negative X-axis end of the pressure plate 11a abuts against or comes close to the upper surface of the engaging portion 25 (i.e., the surface in the positive Z-axis direction) that engages with the edge portion 11c of the lateral frame portion 11y, thereby preventing the engaging portion 25 from being displaced upward and coming off the edge portion 11 c.

In the initial state of the socket 1, that is, in a state where the socket 1 is not used for connection of a connection target device (not shown) and no external force is applied to the terminals 61 and the like, the contact portions 64 of the respective terminals 61 protrude from the upper and lower surfaces of the socket 1. The lower surface of the socket 1 is pressed against the upper surface of one connection target device provided below the socket 1 (in the Z-axis negative direction), the upper surface of the socket 1 is pressed against the lower surface of another connection target device provided above the socket 1 (in the Z-axis positive direction), and the contact portion 64 is brought into contact with a mating terminal (not shown) provided on the upper surface of the one connection target device and a mating terminal (not shown) provided on the lower surface of the another connection target device.

Further, a guide hole 13 is formed in the frame member 11, and a cylindrical guide member (not shown) for positioning with the connection target device is inserted into the guide hole 13. The number and arrangement of the guide holes 13 may be determined as appropriate to correspond to the number and arrangement of the guide members. In the example shown in the drawing, in addition to the guide holes 13 formed in the four corners of the frame member 11, a guide frame member 14 in which the guide holes 13 are formed is disposed in the center of the module accommodating recess 12 so as to correspond to the case where the guide member is disposed so as to pass through the center of the module accommodating recess 12. In the module accommodating recess 12, the terminal unit 30 accommodated in the guide frame member 14 is formed so that the dimension in the X-axis direction thereof is smaller than the dimension in the X-axis direction of the other terminal units 30, and the engaging portion 25 located on the guide frame member 14 side is engaged with the guide frame member 14.

Further, the guide frame member 14 may be provided at a position other than the center of the module accommodating recess 12, depending on the arrangement of the terminals of the connection target device, the shape of the socket 1 connected to the connection target device and set in accordance with the shape of the connection target device, and the like. Further, a plurality of the guide frame members 14 may be arranged.

For example, although the connection target device is a semiconductor device such as an IC or LSI, and the other is a circuit board for inspection of a semiconductor inspection device, at least one surface thereof may be any type of electric or electronic device as long as it has a flat terminal that is in contact with the contact portion 64 and can be electrically connected thereto, or may be a circuit board of these types. For example, the connection target device may be a wired circuit board such as a motherboard or a daughter board in an electronic device such as a computer, a television, a game machine, a video camera, or a navigation device.

Note that, in the present embodiment, expressions for indicating directions such as up, down, left, right, front, and rear, which are used for explaining the structure and operation of each portion included in the socket 1 and the other member, are not absolute, but relative, and are suitable for a case where each portion included in the socket 1 and the other member is in the posture shown in the drawing, but when the posture of each portion included in the socket 1 and the other member is changed, it is necessary to change and explain the posture in accordance with the change of the posture.

Next, the structure of the terminal unit assembly 20 will be described in detail.

Fig. 4 is a perspective view of the small terminal unit assembly in the present embodiment, fig. 5 is a plan view of the small terminal unit assembly in the present embodiment, fig. 6 is a perspective view showing a side wall side of the first terminal unit in the present embodiment, fig. 7 is a perspective view showing a terminal side of the first terminal unit in the present embodiment, fig. 8 is a perspective view showing a side wall side of the second terminal unit in the present embodiment, fig. 9 is a perspective view showing a terminal side of the second terminal unit in the present embodiment, fig. 10 is an enlarged view of a portion a in fig. 7, is a perspective view of a main portion of the first terminal unit in the present embodiment, fig. 11 is an enlarged side view of a portion a in fig. 7, is a side view of a main portion of the first terminal unit in the present embodiment, fig. 12 is an enlarged plan view of a portion a in fig. 7, and is an enlarged plan view of a main portion of the second terminal unit in the present embodiment.

In the present embodiment, the terminal unit 30 extending in the longitudinal direction (X-axis direction) has a first terminal unit 30A and a second terminal unit 30B. In the terminal unit assembly 20, the first terminal units 30A and the second terminal units 30B are alternately arranged along the lateral direction (Y-axis direction). In fig. 4 and 5, a small terminal unit assembly 20 is shown. By accommodating and combining a plurality of such small terminal unit modules 20 in the module accommodating recess 12, a large terminal unit module 20 as shown in fig. 1 to 3 can be obtained.

Further, the first terminal unit 30A and the second terminal unit 30B, and respective portions of the first terminal unit 30A and respective portions of the second terminal unit 30B may be collectively described below. In this case, the terms "first" and "second" and the reference numerals "a" and "B" will be removed for explanation.

As shown in fig. 6 and 7, the first terminal unit 30A has: a first terminal holding portion 21A extending in the longitudinal direction and integrally formed of an insulating material such as a synthetic resin; a first side wall portion 31A extending in the longitudinal direction as a housing wall and integrally formed of an insulating material such as a synthetic resin; and a plurality of first terminals 61A which are formed of an elastic conductive metal plate and held by the first terminal holding portion 21A. The first terminal holding portion 21A and the first side wall portion 31A are disposed adjacent to each other along the Y-axis direction.

The first terminal holding portion 21A includes: an elongated first beam portion 22A extending in the longitudinal direction; and first engaging portions 25A connected to both ends of the first beam portion 22A in the longitudinal direction. The first engaging portion 25A is a portion that engages with the edge 11c of the horizontal frame portion 11y, and a first engaging recess 26A is formed on the lower surface (i.e., the surface in the Z-axis negative direction) of the first engaging portion 25A. Further, it is preferable that the dimension (i.e., the thickness) in the lateral direction (i.e., the Y-axis direction) of the end portion of the first engaging portion 25A be set to be substantially equal to the sum of the thickness of the first beam portion 22A and the thickness of the first side wall portion 31A. A plurality of first terminal holding groove portions 23A in an elongated slit shape are formed in the first beam portion 22A, and the plurality of first terminal holding groove portions 23A extend in the vertical direction (Z-axis direction) and are formed at a pitch of, for example, about 0.8 mm.

The first side wall portion 31A is a substantially rectangular plate member extending in the X-Z plane, and includes: a first upper wall portion 32A that is mainly a portion located above the first beam portion 22A; and a first lower wall 33A that is mainly a portion located below the first beam 22A.

The first terminal 61A is a plate member having an elongated strip shape as a whole by performing processing such as punching and bending on a metal plate, and includes: a first body portion 62A which is held by the first terminal holding groove portion 23A and extends in the vertical direction; a pair of first contact arm portions 63A connected to both ends of the first body portion 62A, respectively; and curved first contact portions 64A formed at the tip ends of the respective first contact arm portions 63A. Each first contact arm portion 63A extends from the first body portion 62A toward the front side of the inclination, and a first contact portion 64A is formed at the free end of the first contact arm portion 63A. The shape of the first terminal 61A on the X-Z plane is vertically symmetrical about a symmetry axis extending in the front-rear direction (X-axis direction) along the center of the first side wall 31A in the vertical direction.

The plurality of first terminals 61A are arranged in the front-rear direction, and the first body portions 62A and the first contact arm portions 63A of the adjacent first terminals 61A are spaced apart from each other and formed in parallel. In the initial state, each of the first contact portion 64A and a part of the first contact arm portion 63A protrudes more upward than the upper surface of the first upper wall portion 32A (i.e., the upper surface of the first terminal unit 30A), and each of the first contact portion 64A and a part of the first contact arm portion 63A protrudes more downward than the lower surface of the first lower wall portion 33A (i.e., the lower surface of the first terminal unit 30A).

Further, the first beam portion 22A is formed with a plurality of first bonding protrusions 27A and a plurality of first contact protrusions 28A, and the plurality of first contact protrusions 28A are protrusions that protrude in the lateral direction (Y-axis direction) of the terminal unit assembly 20 and function as space holding protrusions that hold the space between the first bonding protrusions 27A and the adjacent second terminal units 30B. The first bonding protrusions 27A and the first contact protrusions 28A are alternately arranged in the front-rear direction so as to form a space therebetween, and the first bonding protrusions 27A and the first contact protrusions 28A are disposed between the adjacent first terminal holding groove portions 23A. Further, as shown in fig. 12, the first bonding protrusion 27A and the first contact protrusion 28A are formed such that: the side surface of the tip end face protrudes toward the side wall portion 31 of the adjacent terminal unit 30, that is, the second side wall portion 31B of the second terminal unit 30B (in the Y-axis negative direction) more than the first terminal 61A, the other portion of the first beam portion 22A, and the first engaging portion 25A.

The side surface (i.e., the distal end surface) of the first bonding protrusion 27A is bonded to the surface of the side surface of the second sidewall 31B of the adjacent second terminal unit 30B via an adhesive (not shown), and is formed as a plane parallel to the X-Z plane. Further, a notch 29 for accommodating surplus adhesive is formed on the tip end surface of the first bonding protrusion 27A.

On the other hand, the side surface (i.e., the tip end surface) of the first contact protrusion 28A is a surface that is deformed by pressing the side surface of the second side wall portion 31B of the adjacent second terminal unit 30B, is a convex curved surface (preferably a spherical surface), and is formed to protrude in the Y-axis negative direction more than the side surface of the first bonding protrusion 27A. For example, in the example shown in fig. 12, the dimension from the side surface on the Y-axis positive direction side of the first side wall portion 31A to the tip end surface of the first bonding protrusion 27A may be about 0.8mm, and the dimension from the side surface on the Y-axis positive direction side of the first side wall portion 31A to the tip end surface of the first contact protrusion 28A may be about 0.82 mm.

As shown in fig. 8 and 9, the second terminal unit 30B has: a second terminal holding portion 21B integrally formed of an insulating material such as a synthetic resin and extending in the longitudinal direction; a second side wall portion 31B integrally formed as a housing wall from an insulating material such as a synthetic resin and extending in the longitudinal direction; and a plurality of second terminals 61B each formed of an elastic conductive metal plate and held by the second terminal holding portion 21B. The second terminal holding portion 21B and the second side wall portion 31B are disposed adjacent to each other in the Y-axis direction.

The second terminal holding portion 21B includes: an elongated second beam portion 22B extending in the longitudinal direction; and second engaging portions 25B connected to both ends of the second beam portion 22B in the longitudinal direction. The second engaging portion 25B is a portion that engages with the edge portion 11c of the horizontal frame portion 11y, and a second engaging recess 26B is formed in a lower surface (i.e., a surface in the Z-axis negative direction) of the second engaging portion 25B. Preferably, the dimension (i.e., the thickness) in the lateral direction (i.e., the Y-axis direction) of the end portion of the second engagement portion 25B is set to be substantially equal to the sum of the thickness of the second beam portion 22B and the thickness of the second side wall portion 31B. A plurality of second terminal holding groove portions 23B in an elongated slit shape are formed in the second beam portion 22B, and the plurality of second terminal holding groove portions 23B extend in the vertical direction (Z-axis direction) and are formed at a pitch of, for example, about 0.8 mm.

The second side wall portion 31B is a substantially rectangular plate member extending in the X-Z plane, and includes: a second upper wall portion 32B that is mainly a portion located above the second beam portion 22B; and a second lower wall 33B mainly serving as a portion located below the second beam portion 22B.

The second terminal 61B is a plate member having an elongated strip-like shape as a whole by performing a process such as punching, bending, or the like on a metal plate, and includes: a second body portion 62B which is held by the second terminal holding groove portion 23B and extends in the up-down direction; a pair of second contact arm portions 63B connected to both ends of the second body portion 62B, respectively; and curved second contact portions 64B formed at tip end portions of the respective second contact arm portions 63B. Each second contact arm portion 63B extends from the second body portion 62B toward the inclined rear, and a second contact portion 64B is formed at a free end of the second contact arm portion 63B. The shape of the second terminal 61B on the X-Z plane is substantially W-shaped, and is vertically symmetrical about a symmetry axis extending in the front-rear direction along the center in the vertical direction of the second side wall portion 31B.

The plurality of second terminals 61B are arranged in the front-rear direction, and the second body portions 62B and the second contact portions 64B of the adjacent second terminals 61B are spaced apart from each other and formed in parallel. In the initial state, each of the second contact portion 64B and a part of the second contact arm portion 63B protrudes more upward than the upper surface of the second upper wall portion 32B (i.e., the upper surface of the second terminal unit 30B), and each of the second contact portion 64B and a part of the second contact arm portion 63B protrudes more downward than the lower surface of the second lower wall portion 33B (i.e., the lower surface of the second terminal unit 30B).

Further, a plurality of second bonding protrusions 27B and a plurality of second contact protrusions 28B are formed on the second beam portion 22B, and the plurality of second contact protrusions 28B are protrusions that protrude in the lateral direction (Y-axis direction) of the terminal unit assembly 20 and function as space holding protrusions that hold the space between the adjacent first terminal units 30A. The second bonding protrusions 27B and the second contact protrusions 28B are alternately arranged in the front-rear direction so as to form a space therebetween, and the second bonding protrusions 27B and the second contact protrusions 28B are disposed between the adjacent second terminal holding groove portions 23B. Since the second bonding protrusions 27B and the second contact protrusions 28B have substantially the same structure as the first bonding protrusions 27A and the first contact protrusions 28A, detailed description thereof will be omitted.

In the case of configuring the small terminal unit assembly 20 as shown in fig. 4 and 5, the first terminal units 30A and the second terminal units 30B are alternately arranged along the lateral direction (Y-axis direction). Further, an adhesive is added between the tip end surface of the adhesive protrusion 27 formed by the beam portion 22 of each terminal unit 30 and the side surface of the side wall portion 31 of the terminal unit 30 adjacent thereto. The plurality of terminal units 30 are compressed in the lateral direction while being alternately arranged in the lateral direction. Since the contact protrusion 28 formed on the beam portion 22 of each terminal unit 30 is most protruded toward the side wall portion 31 of the adjacent terminal unit 30, the contact protrusion 28 first comes into contact with the side surface of the side wall portion 31, and is pressed in the lateral direction to be compressed and deformed, thereby reducing the amount of protrusion. When the amount of protrusion of the contact protrusion 28 decreases, the end surface of the adhesive protrusion 27 abuts against the side surface of the side wall portion 31 and is adhered to the side surface of the side wall portion 31 via the adhesive. In addition, the remaining adhesive will be accommodated in the cutout 29 formed in the tip end surface of the adhesive protrusion 27.

With the above, a state is formed in which there is no lateral gap between the adjacent terminal units 30, and the dimension in the lateral direction of the terminal unit assembly 20 is formed to a prescribed value. Further, the distal end surface of the adhesion protrusion 27 adheres to the side surface of the side wall portion 31, so that the adjacent terminal units 30 are adhered to each other without a lateral gap, and the dimension of the terminal unit assembly 20 in the lateral direction is maintained at a predetermined value. Further, the contact protrusions 28 protruding with respect to the pitch of the terminal units 30 arranged in the lateral direction are pressed to be compressively deformed, so that the pitch of the terminal units 30 in the terminal unit assembly 20 can be set to a predetermined value, and the dimensional accuracy of the terminal unit assembly 20 in the lateral direction can be improved. The small terminal unit modules 20 configured as described above are accommodated in the module accommodating recess 12 of the frame member 11 by a predetermined number and combined.

As described above, in the present embodiment, the receptacle 1 includes: a terminal unit assembly 20 in which a plurality of terminal units 30 extending in a longitudinal direction are arranged in a lateral direction orthogonal to the longitudinal direction; a frame member 11 including a module accommodating recess 12 for accommodating the terminal unit module 20. Each terminal unit 30 includes: a terminal holding portion 21 extending in the longitudinal direction; a plurality of terminals 61 including a main body 62 held by the terminal holding portion 21, a contact portion 64 projecting upward from the upper surface of the terminal unit 30 or projecting downward from the lower surface of the terminal unit 30, and a contact arm portion 63 for connecting the main body 62 and the contact portion 64; and a side wall portion 31 extending in the longitudinal direction. The terminal holding portion 21 includes a plurality of bonding protrusions 27 and a plurality of contact protrusions 28 protruding in the lateral direction, and at least one of the plurality of bonding protrusions 27 and the plurality of contact protrusions 28 abuts against the side wall portion 31 of the adjacent terminal unit 30.

Accordingly, dimensional tolerances of the respective members are not accumulated and become large, dimensional accuracy in the lateral direction of the terminal unit assembly 20 can be improved, the structure of the socket 1 can be simplified and cost can be reduced, and durability can be improved.

The adhesive protrusion 27 is in contact with the side wall portion 31 of the adjacent terminal unit 30 via an adhesive. Further, the method comprises the following steps: an adhesive protrusion 27 having a distal end surface thereof brought into contact with the side wall portion 31 of the adjacent terminal unit 30 via an adhesive; the tip end surface of the contact protrusion 28 abuts against the side wall portion 31 of the adjacent terminal unit 30 and is deformed. Further, the amount of protrusion in the lateral direction of the contact protrusion 28 is larger than the amount of protrusion in the lateral direction of the bonding protrusion 27. In addition, a space is formed between the contact protrusion 28 and the bonding protrusion 27. The contact protrusions 28 and the bonding protrusions 27 are alternately arranged in the longitudinal direction. In addition, the position in the longitudinal direction of the contact protrusion 28 is different from the position in the longitudinal direction of the contact protrusion 28 of the adjacent terminal unit 30. Further, the contact protrusions 28 of the terminal unit assembly 20 are arranged in a staggered manner in a plan view. In addition, in a method of manufacturing the socket 1, the terminal unit assembly 20 is assembled by compressing the plurality of terminal units 30 arranged in the lateral direction toward the lateral direction and deforming the tip end surfaces of the contact protrusions 28 by abutting against the side wall portions 31 of the adjacent terminal units 30.

As described above, in the usual case, the dimension in the transverse direction of the terminal unit 30 is formed to be smaller than the prescribed pitch of the terminal units 30 arranged in the transverse direction in consideration of the tolerance, for which case in the present embodiment, only the protruding amount of the contact protrusion 28 is increased, and when the terminal unit assembly 20 is constituted by arranging a plurality of terminal units 30 in the transverse direction, the excessive protruding amount of the contact protrusion 28 is compressed and reduced, whereby the dimensional accuracy in the transverse direction can be improved.

It is noted that the disclosure of the present specification describes features relating to preferred, exemplary embodiments. Various other embodiments, modifications and variations within the scope and spirit of the appended claims will naturally occur to persons of ordinary skill in the art from a review of the disclosure contained in this specification.

Industrial applicability

The present invention can be applied to a socket.