Connection structure, plug, and substrate member

Abstract

To provide a connection structure, a plug, and a substrate member, in which, when a plurality of terminals is arranged in multiple electrodes, each terminal can be electrically connected to each electrode pad corresponding to the terminal stably.SOLUTION: A connection structure includes a plug and a substrate member. The plug includes a plurality of conductors, a plurality of terminals, and a first housing. The terminals are electrically connected to the corresponding one of the conductors. The first housing holds each tip end part of the conductors and the terminals, and includes an end surface. The substrate member has a first substrate. The first substrate includes a first main surface and a plurality of electrode pads provided on the first main surface. Each tip end part of the terminals faces the first main surface at the end surface of the first housing. Each tip end part of the terminals is configured to come into contact with the corresponding one of the electrode pads in an elastically deformed state.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present disclosure relates to a connection structure, a plug, and a substrate member. [Background technology]

[0002] Patent Document 1 discloses an electrical connector mounted on a board. A plurality of conductive contacts are arranged in a multi-pole arrangement inside the housing of the electrical connector. Each conductive contact is electrically connected by soldering to each conductive path on the board on which the electrical connector is mounted. In the electrical connector described in Patent Document 1, a signal transmission medium inserted inside the housing is electrically connected to each conductive path on the board via the plurality of conductive contacts. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2016-129124 A Summary of the Invention [Problem to be solved by the invention]

[0004] In the electrical connector described in Patent Document 1, the multiple conductive contacts are arranged in a multi-pole arrangement in the width direction of the electrical connector, so the length of the electrical connector in the width direction is large. In this case, when the electrical connector is mounted on a board and the board is deformed due to heat generated, the housing of the electrical connector cannot follow the deformation of the board, and there is a risk that the electrical connection between the multiple conductive connectors and each conductive path will be incomplete.

[0005] On the one hand, it is conceivable to reduce the length of the electrical connector in the width direction by narrowing the intervals between a plurality of conductive contacts and mounting the plurality of conductive contacts at high density. In this case, it becomes difficult to control the positional accuracy of each conductive contact, and it becomes difficult to control the flatness (coplanarity) of each conductive contact. Therefore, there is still a risk that the electrical connection between the plurality of conductive connectors and each conductive path will be incomplete.

[0006] An object of the present disclosure is to provide a connection structure, a plug, and a substrate member in which each terminal can be stably and electrically connected to each electrode pad corresponding to the terminal when a plurality of terminals are arranged in a multi-pole manner.

Means for Solving the Problems

[0007] A connection structure according to an embodiment of the present disclosure includes a plug and a substrate member. The plug has a plurality of conductors, a plurality of terminals, and a first housing. The plurality of conductors each extend along a first direction. The plurality of terminals are electrically connected to corresponding ones of the plurality of conductors and each extend along a second direction. The first housing holds each tip end portion of the plurality of conductors and the plurality of terminals and includes an end face intersecting the second direction. The substrate member has a first substrate. The first substrate includes a first main surface facing the end face of the first housing in the second direction and a plurality of electrode pads provided on the first main surface. The plurality of conductors are arranged side by side in a third direction intersecting the first direction and the second direction. The plurality of terminals are arranged side by side in the third direction. The plug is attached to the substrate member. The tip end portion of each of the plurality of terminals faces the first main surface at the end face of the first housing. The tip end portion of each of the plurality of terminals is configured to contact the corresponding electrode pad among the plurality of electrode pads in an elastically deformed state.

Effects of the Invention

[0008] According to the present disclosure, when a plurality of terminals are arranged in a multi-pole manner, each terminal can be stably and electrically connected to each electrode pad corresponding to the terminal. [Brief description of the drawings]

[0009] [Figure 1] FIG. 1 is a perspective view showing a connection structure according to one embodiment. [Diagram 2] FIG. 2 is a cross-sectional view taken along the line II-II shown in FIG. [Diagram 3] FIG. 3 is an enlarged view of an area A enclosed by a dashed line in the connection structure shown in FIG. [Figure 4] FIG. 4 is a cross-sectional view taken along line IV-IV shown in FIG. [Diagram 5] FIG. 5 is an enlarged view of the connection structure shown in FIG. [Figure 6] FIG. 6 is a perspective view showing a connection structure according to a modified example. [Figure 7] Part (a) of Fig. 7 is an enlarged view of a second housing and a second positioning member in a connection structure according to a modified example, and part (b) of Fig. 7 is a view of the second housing and the second positioning member shown in part (a) of Fig. 7 as viewed from a second direction. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] [Description of the embodiments of the present disclosure] First, the contents of the embodiments of the present disclosure will be listed and described. [1] A connection structure according to one embodiment includes a plug and a substrate member. The plug has a plurality of conductors, a plurality of terminals, and a first housing. Each of the plurality of conductors extends along a first direction. Each of the plurality of terminals is electrically connected to a corresponding one of the plurality of conductors and extends along a second direction. The first housing holds each of the ends of the plurality of conductors and the plurality of terminals and includes an end face intersecting the second direction. The substrate member has a first substrate. The first substrate includes a first main surface facing an end face of the first housing in the second direction, and a plurality of electrode pads provided on the first main surface. The plurality of conductors are aligned in a third direction intersecting the first direction and the second direction. The plurality of terminals are aligned in the third direction. A plug is attached to the substrate member. A tip of each of the plurality of terminals faces the first main surface at the end face of the first housing. The tip of each of the plurality of terminals is configured to contact a corresponding one of the plurality of electrode pads in an elastically deformed state.

[0011] In this connection structure, the terminals contact the corresponding electrode pads among the electrode pads in an elastically deformed state. Since such a connection structure is used, the electrode pads can be provided on the first main surface of the first substrate, and the positions of the electrode pads can be controlled with high precision. This allows the electrode pads and the terminals to be densely mounted, thereby reducing the length of the plug in the third direction. As a result, when the terminals are arranged in a multi-pole arrangement, each terminal can be stably and electrically connected to the electrode pads corresponding to the terminal.

[0012] [2] In the connection structure of [1] above, the plug may further include a relay member that is held by the first housing and that holds the base end of each of the multiple terminals in the second direction. The base end of each of the multiple terminals may be electrically connected to a corresponding conductor among the multiple conductors in the relay member. In this case, the position of the base end of each of the multiple terminals can be adjusted by changing the size and position of the relay member. This makes it possible to adjust the position of the tip end of each of the multiple terminals. As a result, when the multiple terminals are arranged in a multi-pole arrangement, each terminal can be electrically connected more stably to each electrode pad corresponding to the terminal.

[0013] [3] In the connection structure of [1] or [2] above, the board member may further have a second housing that accommodates the plug such that the first direction in which the multiple conductors extend intersects with the second direction and the plug and the first board are positioned relative to each other. In this case, multiple terminals on the plug are positioned with respect to multiple electrode pads on the first board. This allows each terminal to be more stably electrically connected to the electrode pad corresponding to the terminal when multiple terminals are arranged in a multi-pole arrangement. In addition, since the plug and the first board are positioned so that the first direction intersects with the second direction, the length of the connection structure in the second direction is reduced, and the connection structure can be made low-profile.

[0014] [4] In the connection structure of [3] above, the conductors may be arranged in the second direction in a cross section of the first housing intersecting with the third direction. The terminals may be arranged in the first direction in a cross section of the first housing intersecting with the third direction. In this case, the number of electrode pads and the number of terminals can be increased without increasing the length of the plug in the third direction.

[0015] [5] In the connection structure of [3] or [4] above, the substrate member may further include a second substrate including a second main surface intersecting with the second direction, and a first positioning member provided on the second main surface and positioning the second housing with respect to the second substrate in the direction intersecting with the second direction. In this case, the second housing can be positioned with respect to the second substrate in the direction intersecting with the second direction. This allows each terminal to be electrically connected to each electrode pad corresponding to the terminal more stably.

[0016] [6] In the connection structure of [5] above, the substrate member may further include a first fixing member that fixes the second housing and the first positioning member to the second main surface of the second substrate. In this case, the second housing and the first positioning member can be fixed to the second substrate. This allows each terminal to be electrically connected to a corresponding electrode pad more stably.

[0017] [7] In the connection structure of [6] above, the first fixing member may include a first body portion and a first screw member that fixes the first body portion to the second main surface of the second board. In this case, the second housing and the first positioning member can be more firmly fixed to the second board. This allows each terminal to be electrically connected to a corresponding electrode pad more stably.

[0018] [8] In the connection structure of [3] or [4] above, the substrate member may further include a second positioning member provided on the first main surface and positioning the second housing with respect to the first substrate in a direction intersecting the second direction. In this case, the second housing can be positioned with respect to the first substrate in a direction intersecting the second direction. This allows each terminal to be electrically connected to a corresponding electrode pad more stably.

[0019] [9] In the connection structure of [8] above, the substrate member may further include a second fixing member that fixes the second housing and the second positioning member to the first main surface of the first substrate. In this case, the second housing can be fixed to the first substrate. This allows each terminal to be electrically connected to a corresponding electrode pad more stably.

[0020]

[10] In the connection structure of [9] above, the second fixing member may further include a second body portion and a second screw member for fixing the second body portion to the first main surface of the first substrate. In this case, the second housing can be more firmly fixed to the first substrate. This allows each terminal to be electrically connected to a corresponding electrode pad more stably.

[0021]

[11] In the connection structure of any one of [8] to

[10] above, the second positioning member may include a third main body portion and a third fixing member protruding from the third main body portion in a direction intersecting the second direction and fixed to the first main surface of the first substrate. In this case, the second positioning member can be fixed to the first substrate. This allows each terminal to be electrically connected to each electrode pad corresponding to the terminal more stably.

[0022]

[12] A plug according to one embodiment is a plug that can be attached to a substrate member having a plurality of electrode pads. The plug includes a plurality of conductors, a plurality of terminals, and a first housing. Each of the plurality of conductors extends along a first direction. Each of the plurality of terminals is electrically connected to a corresponding one of the plurality of conductors. Each of the plurality of terminals extends along a second direction. The first housing holds each of the tips of the plurality of conductors and the plurality of terminals. The first housing includes an end face that intersects with the second direction. The plurality of conductors are aligned in a third direction that intersects with the first direction and the second direction. The plurality of terminals are aligned in the third direction. The tip of each of the plurality of terminals protrudes from the end face of the first housing and is configured to be able to contact a corresponding one of the plurality of electrode pads in an elastically deformed state. A plug having such a configuration can achieve the same effect as the above-mentioned connection structure.

[0023]

[13] The plug of

[12] may further include a relay member that is held by the first housing and that holds each base end of the plurality of terminals in the second direction. The base end of each of the plurality of terminals in the second direction may be electrically connected to a corresponding conductor among the plurality of conductors in the relay member. In this case, it is possible to adjust the position of the tip end of each of the plurality of terminals by changing the size and position of the relay member.

[0024]

[14] In one embodiment, the substrate member is a substrate member that can be attached to a plug that exposes a plurality of terminals from an end face, each of which extends along the second direction. The substrate member includes a substrate. The substrate has a main surface that intersects with the second direction, and a plurality of electrode pads that are provided on the main surface and are configured to be electrically connectable to corresponding terminals among the plurality of terminals. A substrate having such a configuration can achieve the same effect as the connection structure described above.

[0025]

[15] The board member of

[14] may further include a second housing that accommodates the plug so as to position the plug and the first board relative to each other. In this case, the multiple terminals of the plug are positioned relative to the multiple electrode pads of the first board. This allows each terminal to be electrically connected more stably to the corresponding electrode pad when the multiple terminals are arranged in a multi-pole arrangement.

[0026] [Details of the embodiment of the present disclosure] Specific examples of the connection structure, plug, and substrate member according to the embodiment of the present disclosure will be described below with reference to the drawings. In the following description, the same elements or elements having the same functions will be designated by the same reference numerals, and duplicated descriptions will be omitted. Note that the present invention is not limited to these examples, but is indicated by the claims, and is intended to include all modifications within the meaning and scope equivalent to the claims.

[0027] Fig. 1 is a perspective view showing a connection structure according to one embodiment. Fig. 2 is a cross-sectional view taken along line II-II shown in Fig. 1. Fig. 3 is an enlarged view of an area A surrounded by a dashed line in the connection structure shown in Fig. 2. The connection structure 1 includes a plug 2 and a board member 3. In the connection structure 1, the plug 2 is attached to the board member 3.

[0028] 2, the plug 2 has a plurality of electric wires (a plurality of conductors) 21, a plurality of covering members 22, a plurality of terminals 23, a plurality of relay members 24, and a plug housing (a first housing) 40. Hereinafter, the direction in which the electric wires 21 extend is defined as an X direction (a first direction), a direction intersecting the X direction, the direction in which the terminals 23 extend is defined as a Y direction (a second direction), and a direction intersecting the X direction and the Y direction is defined as a Z direction (a third direction).

[0029] The electric wires 21 are members for transmitting electric power or electric signals. The electric wires 21 are formed of a metal such as copper. The electric wires 21 extend along the X direction. The electric wires 21 are arranged in the Z direction. The electric wires 21 are arranged in the Y direction in a cross section of the plug housing 40 intersecting the Z direction. The covering members 22 are members that cover the electric wires 21 except for the tip portions 21a. The length of the tip portions 21a in the X direction is, for example, about 1 mm, but can be adjusted in consideration of the mounting strength and transmission characteristic specifications of each component. The material of the covering members 22 is, for example, a resin such as polyester. Each covering member 22 integrates the electric wires 21 arranged in the Z direction among the electric wires 21, and the electric wires 21 arranged in the Z direction and the covering members 22 constitute a cable C1. The cable C1 is, for example, a flexible flat cable (FFC). Each covering member 22 may integrate a plurality of electric wires 21 arranged in the Y direction and the Z direction among the plurality of electric wires 21.

[0030] The multiple terminals 23 are members for transmitting power or electric signals. The terminals 23 are formed of a metal such as copper. The multiple terminals 23 each extend along the Y direction. The multiple terminals 23 are lined up in the Z direction. The multiple terminals 23 are lined up in the X direction in a cross section of the plug housing 40 intersecting the Z direction. A base end 23a in the Y direction of each of the multiple terminals 23 is held by the relay member 24. For example, the base end 23a is solder-mounted to the relay member 24. The base end 23a is electrically connected to a corresponding one of the multiple electric wires 21 in the wiring of the relay member 24.

[0031] 3, the tip portion 23b of each of the terminals 23 is configured to be elastically deformable in the Y direction and is, for example, J-shaped. The tip portion 23b is configured to contact a corresponding one of the electrode pads 31b (described later) in an elastically deformed state. The tip portion 23b faces a first main surface 31a (described later) of the first substrate 31 at a second side surface 44 (described later) of the plug housing 40. The tip portion 23b protrudes from the second side surface 44 of the plug housing 40 before contacting the electrode pad 31b. For example, the length L of the tip portion 23b protruding from the second side surface 44 may be 10 μm or more and 1000 μm or less, for example, 200 μm.

[0032] Referring again to FIG. 2, the relay members 24 are members for relaying electrical connections between the electric wires 21 and the terminals 23. The relay members 24 have, for example, a plate shape, and an example is a paddle card. The relay members 24 extend along the X direction and the Z direction. The relay members 24 are lined up along the Y direction. Each relay member 24 holds the base end portion 23a of the terminals 23 lined up in the Z direction. The wiring of the relay member 24 is electrically connected to the tip end portion 21a of the electric wires 21 lined up in the Z direction and the base end portion 23a in the Y direction of the terminals 23 lined up in the Z direction.

[0033] The plug housing 40 is a rectangular parallelepiped member that holds the multiple electric wires 21 and the relay member 24. The plug housing 40 is formed from a material such as a resin such as polyphenylene sulfide (PPS). The plug housing 40 has a front end face 41, a rear end face 42, a first side face 43, a second side face (end face) 44, and a pair of third side faces 45 (see FIG. 4).

[0034] The front end surface 41 and the rear end surface 42 extend along the Y direction and the Z direction. The rear end surface 42 is located on the opposite side of the front end surface 41 in the X direction. The first side surface 43 and the second side surface 44 intersect with the Y direction and extend along the X direction and the Z direction. The second side surface 44 is located on the opposite side of the first side surface 43 in the Y direction. The pair of third side surfaces 45 extend along the X direction and the Y direction. One third side surface 45 is located on the opposite side of the other third side surface 45 in the Z direction.

[0035] The plug housing 40 further has a plurality of holding holes 46, a plurality of recesses 47, and a plurality of hole portions 48. The plurality of holding holes 46 extend along the X direction and the Z direction, respectively. The plurality of holding holes 46 are aligned in the Y direction. The holding holes 46 open in the rear end face 42 and extend from the rear end face 42 to the inside of the plug housing 40. Each of the plurality of holding holes 46 holds the cable C1 and the relay member 24. For example, the relay member 24 is fixed to the plug housing 40 by press-fitting or adhesive. Thus, the plug housing 40 holds the tip portions 21a of the plurality of electric wires 21, the plurality of terminals 23, and the relay member 24.

[0036] The multiple recesses 47 are open on the second side surface 44. The multiple recesses 47 each extend along the Z direction. The multiple recesses 47 are lined up in the X direction. The multiple holes 48 each extend along the Y direction and the Z direction. Each recess 47 communicates with a corresponding one of the multiple holding holes 46 via a corresponding one of the multiple holes 48.

[0037] The multiple terminals 23 extend from the bottom of the holding hole 46 to the inside of the recess 47 via the hole 48. Therefore, by adjusting the position of the relay member 24 in the X direction, it is possible to adjust the position in the Y direction of the tip portion 23b of each terminal 23 held by the relay member 24. This makes it possible to adjust the length by which the tip portion 23b of each terminal 23 protrudes from the second side surface 44 of the plug housing 40, and therefore makes it possible to adjust the amount of spring displacement of the tip portion 23b of each terminal 23 when the plug 2 is attached to the board member 3.

[0038] Next, the board member 3 will be described with reference to Fig. 2 to Fig. 5. Fig. 4 is a cross-sectional view taken along line IV-IV of the connection structure 1 shown in Fig. 1. Fig. 5 is an enlarged view of the connection structure 1 shown in Fig. 4. In Figs. 4 and 5, illustration of members other than the plug housing 40 of the plug 2 is omitted. As shown in Figs. 1 and 2, the board member 3 has a first board 31 (board), a receptacle housing 32 (second housing), a second board 33, a first positioning member 50, and a first fixing member 60.

[0039] The first substrate 31 extends along the X and Y directions. The first substrate 31 has a first portion 36 and a second portion 37 aligned in the X direction. The first portion 36 extends so as to overlap the plug 2 when viewed from the Y direction. The second portion 37 extends so as not to overlap the plug 2 when viewed from the Y direction. The second portion 37 is continuous with the first portion 36 in the X direction via an opening (not shown) of the receptacle housing 32 and an opening (not shown) of the first positioning member 50.

[0040] The first portion 36 has a first main surface 31a and a plurality of electrode pads 31b. The first main surface 31a faces a second side surface 44 of the plug housing 40 in the Y direction. The plurality of electrode pads 31b are provided on the first main surface 31a and are aligned in the X direction and the Z direction. Each of the plurality of electrode pads 31b is in contact with a tip portion 23b of a corresponding one of the plurality of terminals 23.

[0041] 2 and 4, the receptacle housing 32 extends to cover the front end surface 41 and the pair of third side surfaces 45 of the plug 2, and has, for example, a U-shape. The receptacle housing 32 accommodates the plug 2 and the first portion 36 of the first board 31 so as to position the plug 2 and the first board 31 relative to each other in the X and Y directions. The receptacle housing 32 regulates the position of the plug 2 in the X and Z directions (front-back and left-right in a horizontal plane) when the plug 2 is inserted. As shown in FIG. 5, the lower end 32a of the receptacle housing 32 protrudes into the first positioning member 50.

[0042] The second substrate 33 has a second main surface 33a facing the first portion 36 of the first substrate 31 and the receptacle housing 32 in the Y direction. The second main surface 33a intersects with the Y direction and extends along the X direction and the Z direction.

[0043] The first positioning member 50 is a member that positions the receptacle housing 32 relative to the second board 33 in a direction intersecting the Y direction. The first positioning member 50 has a plate portion 51 and two wall portions 52. The plate portion 51 is provided on the second main surface 33a. The plate portion 51 has a third main surface 51a extending along the X direction and the Z direction. The first portion 36 of the first board 31 and the receptacle housing 32 are arranged on the third main surface 51a. The two wall portions 52 are provided on the third main surface 51a. The two wall portions 52 are aligned in the Z direction. The two wall portions 52 are arranged on the opposite side of the receptacle housing 32 to the plug housing 40. When viewed from the Y direction, one wall portion 52 extends along a part of the front end surface 41 of the plug housing 40 and one third side surface 45, and has, for example, a V-shape. The other wall portion 52 extends along another portion of the front end face 41 and the other third side face 45 when viewed from the Y direction, and has, for example, a V shape. The two walls 52 position the first portion 36 of the first substrate 31 and the receptacle housing 32 with respect to the second substrate 33 on the second main surface 33a. The two walls 52 align the relative positions of the receptacle housing 32 and the multiple electrode pads 31b.

[0044] The first fixing member 60 fixes the receptacle housing 32 and the first positioning member 50 to the second main surface 33a of the second substrate 33. The first fixing member 60 has a first main body 61 and two first screw members 62. The first main body 61 has a central portion 61a and two end portions 61b. The central portion 61a is disposed on the opposite side of the plug 2, the receptacle housing 32, and the wall portion 52 of the first positioning member 50 in the Y direction. The two end portions 61b are disposed so as to sandwich the central portion 61a. Each end portion 61b is disposed on the opposite side of the wall portion 52 of the first positioning member 50 in the Y direction. The two first screw members 62 are disposed so as to sandwich the plug 2, the receptacle housing 32, and the wall portion 52 of the first positioning member 50. Each first screw member 62 penetrates the second substrate 33, the plate portion 51 of the first positioning member 50, and each end portion 61b. The two first screw members 62 fix the plate portion 51 of the first positioning member 50 to the second substrate 33 by screwing. The two first screw members 62 fix the first main body portion 61 to the second substrate 33 by screwing.

[0045] In this manner, in the connection structure 1 according to the present embodiment, the terminals 23 come into contact with the corresponding electrode pads 31b among the electrode pads 31b in an elastically deformed state. Since such a connection structure 1 is employed, the electrode pads 31b can be configured to be provided on the first main surface 31a of the first substrate 31, and the positions of the electrode pads 31b can be controlled with high precision. This allows the electrode pads 31b and the terminals 23 to be densely mounted, thereby reducing the length of the plug 2 in the Z direction. As a result, when the terminals 23 are arranged in a multipolar arrangement, each terminal 23 can be stably and electrically connected to the electrode pads 31b corresponding to the terminal 23.

[0046] In the connection structure 1, since it is not necessary to control the coplanarity between the multiple electrode pads 31b with high precision, it is permissible to reduce the length of the plug 2 in the Z direction and increase the length of the plug 2 in the Y direction. This makes it possible to reduce the area that the plug 2 occupies on the first substrate 31. As a result, it is possible to further mount other components on the first substrate 31, or the manufacturing cost of the connection structure 1 can be reduced by reducing the size of the first substrate 31.

[0047] In the connection structure 1, when a plurality of terminals 23 are arranged in a multi-pole arrangement, each terminal 23 can be stably electrically connected to each electrode pad 31b corresponding to the terminal 23 without using a high-precision assembly device or the like. In addition, since the connection structure 1 uses a plurality of electrode pads 31b instead of a plurality of conductive contacts, when manufacturing the connection structure 1, a process of arranging each conductive contact so that the plurality of conductive contacts have perfect flatness with each other in the initial state is not required. In addition, since the length of the connection structure 1 in the Z direction is smaller than that of the conventional connection structure 1, even if the first board 31 and the second board 33 are deformed by heat when mounting each component on the second board 33 of the board member 3, each housing can follow the deformation. As a result, it is not necessary to take the deformation into consideration when setting the reflow conditions for each component, so that the reflow conditions can be easily aligned between the plurality of components in the connection structure 1. From the above, the manufacturing cost of the connection structure 1 can be reduced.

[0048] In the connection structure 1, the plug 2 has a relay member 24 that is held by the plug housing 40 and holds the base end 23a of each of the multiple terminals 23 in the Y direction. The base end 23a of each of the multiple terminals 23 is electrically connected to a corresponding electric wire 21 among the multiple electric wires 21 through the relay member 24. In this case, the position of the base end 23a of each of the multiple terminals 23 can be adjusted by changing the size and position of the relay member 24. This makes it possible to adjust the position of the tip end 23b of each of the multiple terminals 23. As a result, when the multiple terminals 23 are arranged in a multi-pole arrangement, each terminal 23 can be electrically connected to each electrode pad 31b corresponding to that terminal 23 more stably.

[0049] In the connection structure 1, the board member 3 has a receptacle housing 32 that houses the plug 2 so as to position the plug 2 and the first board 31 relative to each other. In this case, the multiple terminals 23 of the plug 2 are positioned relative to the multiple electrode pads 31b of the first board 31. This allows each terminal 23 to be electrically connected more stably to the electrode pad 31b corresponding to the terminal 23 when the multiple terminals 23 are arranged in a multi-pole arrangement. In addition, since the plug 2 and the first board 31 are positioned so that the direction in which the multiple electric wires 21 extend intersects with the direction in which the multiple terminals 23 extend, the length of the connection structure 1 in the Y direction is reduced, and the connection structure 1 can be made lower in height than conventional FFC connectors and card edge connectors.

[0050] In the connection structure 1, the multiple electric wires 21 are lined up in the Y direction in a cross section of the plug housing 40 that intersects with the Z direction. The multiple terminals 23 are lined up in the X direction in a cross section of the plug housing 40 that intersects with the Z direction. In this case, the number of the multiple electrode pads 31b and the number of the multiple terminals 23 can be increased without increasing the length of the plug 2 in the Z direction.

[0051] In the connection structure 1, the substrate member 3 has a second substrate 33 including a second main surface 33a intersecting with the Y direction, and a first positioning member 50 provided on the second main surface 33a and positioning the receptacle housing 32 with respect to the second substrate 33 in the direction intersecting with the Y direction. In this case, the receptacle housing 32 can be positioned with respect to the second substrate 33 in the direction intersecting with the Y direction. This allows each terminal 23 to be electrically connected to each electrode pad 31b corresponding to the terminal 23 more stably.

[0052] In the connection structure 1, the substrate member 3 has a first fixing member 60 that fixes the receptacle housing 32 and the first positioning member 50 to the second main surface 33a of the second substrate 33. In this case, the receptacle housing 32 and the first positioning member 50 can be fixed to the second substrate 33. This allows each terminal 23 to be electrically connected to each electrode pad 31b corresponding to the terminal 23 more stably.

[0053] In the connection structure 1, the first fixing member 60 includes a first body portion 61 and a first screw member 62 that fixes the first body portion 61 to the second main surface 33a of the second substrate 33. In this case, the receptacle housing 32 and the first positioning member 50 can be more firmly fixed to the second substrate 33. This allows each terminal 23 to be electrically connected to each electrode pad 31b corresponding to the terminal 23 more stably.

[0054] Although the embodiments of the present disclosure have been described in detail above, the present disclosure is not limited to the above-described embodiments and can be applied to various embodiments. For example, in the connection structure 1, the substrate member 3 does not need to have the first positioning member 50 and the second substrate 33.

[0055] 6 is a perspective view showing a connection structure 101 according to a modified example. The connection structure 101 has a plug 2 and a substrate member 103. The plug 2 has a plurality of electric wires 21, a plurality of covering members 22, a plurality of terminals 23, a plurality of relay members 24, and a plug housing 40, similar to the above embodiment.

[0056] The substrate member 103 has a first substrate 131 (substrate), a receptacle housing 132 (second housing), a second positioning member 150, and a second fixing member 160. The first substrate 131 has a first main surface 131a and a plurality of electrode pads 31b, as in the above embodiment. The receptacle housing 132 is provided on the first main surface 131a and extends to surround the plug 2.

[0057] The second fixing member 160 fixes the receptacle housing 132 and the second positioning member 150 to the first main surface 131a of the first board 131. The second fixing member 160 has a second main body portion 161 and a second screw member 162. The second main body portion 161 has a central portion 161a and two end portions 161b. The central portion 161a is disposed on the opposite side of the first board 131 with respect to the plug 2, the receptacle housing 132, and the second positioning member 150. The two end portions 161b are disposed so as to sandwich the central portion 161a in the Z direction. Each end portion 161b is provided on the first main surface 131a. Each second screw member 162 penetrates the first board 131 and each end portion 161b. The second screw member 162 fixes the second main body portion 161 to the first main surface 131a of the first substrate 131 by screwing.

[0058] The second positioning member 150 is provided on the first main surface 131a, and positions the receptacle housing 132 with respect to the first board 131 in a direction intersecting the Y direction. Part (a) of Fig. 7 is an enlarged view of the receptacle housing 132 and the second positioning member 150 in the connection structure 101. Part (b) of Fig. 7 is a view of the receptacle housing 132 and the second positioning member 150 shown in part (a) of Fig. 7 as viewed from the Y direction.

[0059] The second positioning member 150 has a third main body portion 151 and two third fixing members 152. The third main body portion 151 is disposed on the first main surface 131a. The third main body portion 151 extends in the Y direction so as to surround the receptacle housing 132. The two third fixing members 152 are disposed so as to sandwich the third main body portion 151 in the Z direction. Each third fixing member 152 protrudes from the third main body portion 151 in the Z direction. Each third fixing member 152 extends along the extension direction of the third main body portion 151 and has a rectangular shape. The third fixing member 152 is, for example, a peg terminal. Each third fixing member 152 is fixed to a pad 131c on the first main surface 131a by an adhesive or the like. Pad 131c is provided within a range of about the allowable tolerance of positional deviation from the region on first main surface 131a where third fixing member 152 is mounted. For example, when viewed from the Y direction, third fixing member 152 is offset from the outer edge of pad 131c by about 0.05 mm.

[0060] Each third fixing member 152 has a plurality of holes 152a penetrating the third fixing member 152 along the Y direction. A fillet 152b is formed inside each hole 152a. The holes 152a serve as a passageway for gas when the second positioning member 150 is solder-mounted on the first main surface 131a of the first substrate 131, so that gas from the solder can be degassed more efficiently. In addition, the fillets 152b hold the third main body portion 151 more firmly to the first substrate 131.

[0061] In the connection structure 101 relating to the modified example, as in the above embodiment, when multiple terminals 23 are arranged in a multi-pole manner, each terminal 23 can be stably electrically connected to each electrode pad 31b corresponding to that terminal 23.

[0062] In the connection structure 101 according to the modified example, the substrate member 103 has a second positioning member 150 that is provided on the first main surface 131a and positions the receptacle housing 132 relative to the first substrate 131 in a direction intersecting the Y direction. In this case, the receptacle housing 132 can be positioned relative to the first substrate 131 in the direction intersecting the Y direction. This allows each terminal 23 to be electrically connected to each electrode pad 31b corresponding to the terminal 23 more stably.

[0063] In the connection structure 101 according to the modified example, the substrate member 103 has a second fixing member 160 that fixes the receptacle housing 132 and the second positioning member 150 to the first main surface 131a of the first substrate 131. In this case, the receptacle housing 132 can be fixed to the first substrate 131. This allows each terminal 23 to be electrically connected to each electrode pad 31b corresponding to the terminal 23 more stably.

[0064] In the connection structure 101 according to the modified example, the second fixing member 160 has a second main body portion 161 and a second screw member 162 that fixes the second main body portion 161 to the first main surface of the first board. In this case, the receptacle housing 132 can be more firmly fixed to the first board 131. This allows each terminal 23 to be electrically connected to each electrode pad 31b corresponding to the terminal 23 more stably.

[0065] In the connection structure 101 according to the modified example, the second positioning member 150 includes a third main body portion 151 and a third fixing member 152 that protrudes from the third main body portion 151 in a direction intersecting the Y direction and is fixed to the first main surface 131a of the first substrate 131. In this case, the second positioning member 150 can be fixed to the first substrate 131. This allows each terminal 23 to be electrically connected to each electrode pad 31b corresponding to the terminal 23 in an even more stable manner.

[0066] In the above embodiment, it is sufficient that each tip end 21a of the multiple electric wires 21 is electrically connected to a corresponding one of the multiple terminals 23. For example, the connection structure 1 does not need to have the relay member 24. In this case, each tip end 21a of the multiple electric wires 21 may contact a base end 23a of a corresponding one of the multiple terminals 23.

[0067] In the above embodiment, the second side surface 44 of the plug housing 40 is flush with the first main surface 31a of the first substrate 31. However, it may be flush with the upper surfaces of the electrode pads 31b of the first substrate 31.

[0068] In the above embodiment, the first fixing member 60 may be any member capable of fixing the receptacle housing 32 and the first positioning member 50 to the second main surface 33a of the second board 33. For example, the first fixing member 60 may be an engagement member provided on the plug housing 40 or the receptacle housing 32. [Explanation of symbols]

[0069] 1...Connection structure 2...Plug 3... Substrate material 21...Electric wire 21a...Tip 22...Covering member 23...Terminal 23a...Proximal end 23b...Tip 24...Relay component 31…First board 31a...first principal surface 31b...Electrode pad 32…Receiver housing (second housing) 32a…lower end 33…Second board 33a…Second main surface 36...Part 1 37…Second part 40...Plug housing (first housing) 41…Front end surface 42...Rear end surface 43…1st side 44…Second side (end face) 45…Third side 46...Retaining hole 47…Recess 48...hole 50...First positioning member 51...Plate part 51a...Third principal surface 52...Wall part 60...First fixing member 61...First body part 61a...Central part 61b...end 62...First screw member 101...Connection structure 103... Substrate member 131...First board 131a...First main surface 131c…Pad 132…Receiver housing (second housing) 150...Second positioning member 151…Third body part 152...Third fixing member 152a…hole 152b…Fillet 160...Second fixing member 161...Second main body part 161a...Central part 161b...end 162...Second screw member A…Area C1…Cable

Claims

1. a plug having a plurality of conductors each extending along a first direction, a plurality of terminals electrically connected to corresponding conductors among the plurality of conductors and each extending along a second direction, and a first housing holding each tip end of the plurality of conductors and the plurality of terminals and including an end face intersecting the second direction; a substrate member having a first substrate including a first main surface facing the end surface of the first housing in the second direction and a plurality of electrode pads provided on the first main surface, the plurality of conductors are arranged in a third direction intersecting the first direction and the second direction, The plurality of terminals are aligned in the third direction, the plug is attached to the base member; A connection structure, wherein a tip portion of each of the plurality of terminals faces the first main surface at an end face of the first housing and is configured to contact a corresponding one of the plurality of electrode pads in an elastically deformed state.

2. the plug further includes a relay member that is held by the first housing and that holds a base end portion of each of the plurality of terminals in the second direction, the base end portion of each of the plurality of terminals is electrically connected to a corresponding one of the plurality of conductors in the relay member; The connection structure according to claim 1 .

3. the substrate member further includes a second housing that accommodates the plug such that the first direction in which the conductors extend intersects the second direction and the plug and the first substrate are positioned relative to each other. The connection structure according to claim 1 or 2.

4. the plurality of conductors are aligned in the second direction in a cross section of the first housing intersecting the third direction, The plurality of terminals are arranged side by side in the first direction in a cross section of the first housing intersecting the third direction. The connection structure according to claim 3 .

5. The connection structure described in claim 3, wherein the substrate member further includes a second substrate including a second main surface intersecting the second direction, and a first positioning member provided on the second main surface and positioning the second housing relative to the second substrate in a direction intersecting the second direction.

6. the substrate member further includes a first fixing member that fixes the second housing and the first positioning member to the second main surface of the second substrate; The connection structure according to claim 5 .

7. the first fixing member further includes a first body portion and a first screw member that fixes the first body portion to the second main surface of the second substrate. The connection structure according to claim 6.

8. the substrate member further includes a second positioning member provided on the first main surface and configured to position the second housing relative to the first substrate in a direction intersecting the second direction. The connection structure according to claim 3 .

9. The connection structure according to claim 8 , wherein the base member further includes a second fixing member that fixes the second housing and the second positioning member to the first main surface of the first base member.

10. the second fixing member further includes a second main body portion and a second screw member that fixes the second main body portion to the first main surface of the first substrate. The connection structure according to claim 9.

11. the second positioning member includes a third main body portion and a third fixing member protruding from the third main body portion in a direction intersecting the second direction and fixed to the first main surface of the first substrate. The connection structure according to claim 8.

12. A plug attachable to a substrate member having a plurality of electrode pads, a plurality of conductors each extending along a first direction; a plurality of terminals electrically connected to corresponding ones of the plurality of conductors and each extending along a second direction; a first housing that holds the tips of the conductors and the terminals and includes an end surface that intersects with the second direction; Equipped with the plurality of conductors are arranged in a third direction intersecting the first direction and the second direction, The plurality of terminals are aligned in the third direction, A plug, wherein a tip portion of each of the plurality of terminals protrudes from an end face of the first housing and is configured to be able to contact a corresponding one of the plurality of electrode pads in an elastically deformed state.

13. a relay member that is held by the first housing and that holds a base end portion of each of the plurality of terminals in the second direction, a base end portion of each of the plurality of terminals in the second direction is electrically connected to a corresponding one of the plurality of conductors in the relay member; The plug according to claim 12.

14. A substrate member attachable to a plug having a plurality of terminals exposed from an end surface, each of the terminals extending along a second direction, A substrate member comprising a substrate having a main surface intersecting a second direction and a plurality of electrode pads provided on the main surface and configured to be electrically connectable to corresponding terminals among a plurality of terminals.

15. a housing that receives the plug so as to position the plug and the substrate relative to each other; The substrate member of claim 14.

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