Connector set

Abstract

This connector set comprises a first connector and a second connector. The first connector includes a plurality of first connection terminals arranged on a first straight line parallel to a second direction. The first connection terminal has a first wide part having a larger width in the second direction than the other part of the first connection terminal. The second connector includes a plurality of third connection terminals. The third connection terminal has a second wide part having a larger width in the second direction than the other part of the third terminal. On the first straight line, the third connection terminal is positioned next to the first connection terminal. The position of the first wide part is misaligned with the position of the second wide part in the first direction.

Description

Connector Set

[0001] The present invention relates to a connector set.

[0002] A known example of a conventional connector set is the connector pair described in Patent Document 1. The connector pair described in Patent Document 1 includes a connector and a mating connector for mating with the connector. The connector includes a connector body, a plurality of terminals supported by the connector body, and a reinforcing bracket supported by the connector body. Each of the plurality of terminals is an integrally formed member formed by punching, bending, or other processing on a conductive metal plate. Each of the plurality of terminals has a retained portion, a tail portion connected to a lower end of the retained portion, an upper connection portion connected to an upper end of the retained portion, a second contact portion formed near an inner end of the upper connection portion, a lower connection portion connected to the second contact portion, and a first contact portion formed near a free end of the lower connection portion. The retained portion protrudes forward and rearward from the tail portion and the upper connection portion. The retained portion is inserted into a groove-shaped terminal-receiving cavity formed in the connector body and is retained by the connector body. In the connector pair described in Patent Document 1, the multiple held portions are aligned in a row at intervals in the front-rear direction.

[0003] Patent No. 6404248

[0004] In the case of the connector pair structure described in Patent Document 1, the retained portions of the two terminals approach each other, reducing the isolation between the terminals. This reduction in isolation between the terminals becomes particularly noticeable when attempting to miniaturize the connector or when the connector is used to transmit high-frequency signals.

[0005] SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a connector set that can suppress a decrease in isolation between terminals.

[0006] A connector set according to one aspect of the present invention is a connector set comprising a first connector and a second connector connected to the first connector in a first direction, wherein the first connector includes: a first body member; a plurality of first connection terminals supported by the first body member and aligned on a first straight line parallel to a second direction; and a plurality of second connection terminals supported by the first body member, wherein the first connection terminals have a first wide portion supported by the first body member, the first wide portion being wider in the second direction than other portions of the first connection terminals, wherein the second connector includes: a second body member; a plurality of third connection terminals supported by the second body member; and a plurality of fourth connection terminals supported by the second body member, wherein the third connection terminals have a second wide portion supported by the second body member, the second wide portion being wider in the second direction than other portions of the third connection terminals, and when the first connector and the second connector are connected, The plurality of first connection terminals are respectively connected to the plurality of fourth connection terminals, the plurality of second connection terminals are respectively connected to the plurality of third connection terminals, the third connection terminal is located adjacent to the first connection terminal on the first straight line, and the position of the first wide portion and the position of the second wide portion are offset in the first direction.

[0007] Since the positions of the first wide portion and the second wide portion are offset in the first direction, the distance between the first wide portion of the first connection terminal and the second wide portion of the third connection terminal that are adjacent on the first straight line can be increased, thereby suppressing a decrease in isolation between the terminals.

[0008] According to the connector set of the present invention, it is possible to suppress a decrease in isolation between terminals.

[0009] FIG. 1 is a perspective view of the connector set 1 when the first connector 10 and the second connector 110 are not connected. FIG. 2 is a perspective view of the first connector 10 when the first connector 10 and the second connector 110 are not connected. FIG. 3 is a perspective view of the first main body member 11 when the first connector 10 and the second connector 110 are not connected. FIG. 4 is a perspective view of the first contact terminal 12, the first connection terminals 13l1 to 13l4, 13r1 to 13r4, and the second connection terminals 14l1 to 14l5, 14r1 to 14r5 when the first connector 10 and the second connector 110 are not connected. FIG. 5 is a plan view schematically showing the arrangement of the terminals of the first connector 10 when the first connector 10 and the second connector 110 are not connected. FIG. 6 is a perspective view of the first connection terminal 13l1 when the first connector 10 and the second connector 110 are not connected. FIG. 7 is a perspective view of the second connection terminal 14l1 when the first connector 10 and the second connector 110 are not connected. FIG. 8 is a perspective view of the second connector 110 when the first connector 10 and the second connector 110 are not connected. FIG. 9 is a perspective view of the second main body member 111 when the first connector 10 and the second connector 110 are not connected. FIG. 10 is a perspective view of the second contact terminal 112, the fourth connection terminals 113l1 to 113l4, 113r1 to 113r4, and the third connection terminals 114l1 to 114l5, 114r1 to 114r5 when the first connector 10 and the second connector 110 are not connected. FIG. 11 is a perspective view of the fourth connection terminal 113l1 when the first connector 10 and the second connector 110 are not connected. Fig. 12 is a perspective view of the third connection terminal 114l1 when the first connector 10 and the second connector 110 are not connected. Fig. 13 is a perspective view of the connector set 1 when the first connector 10 and the second connector 110 are connected. Fig. 14 is a cross-sectional view showing the connection between the second connection terminal 14l1 and the third connection terminal 114l1 when the first connector 10 and the second connector 110 are connected. Fig. 15 is a cross-sectional view showing the connection between the first connection terminal 13l1 and the fourth connection terminal 113l1 when the first connector 10 and the second connector 110 are connected.FIG. 16 is a cross-sectional view of the first connection terminals 13l1-13l4 and the third connection terminals 114l1-114l5 when the first connector 10 and the second connector 110 are connected. FIG. 17 is a perspective view of the first connection terminal 13l1 when the first connector 10a and the second connector 110a are not connected. FIG. 18 is a cross-sectional view showing the connection between the second connection terminal 14l1 and the third connection terminal 114l1 when the first connector 10a and the second connector 110a are connected. FIG. 19 is a cross-sectional view showing the connection between the first connection terminal 13l1 and the fourth connection terminal 113l1 when the first connector 10a and the second connector 110a are connected. FIG. 20 is a plan view schematically showing the arrangement of the terminals of the first connector 10b when the first connector 10b and the second connector 110b are not connected. Fig. 21 is a plan view schematically showing the arrangement of terminals of the first connector 10c when the first connector 10c and the second connector 110c are not connected. Fig. 22 is a plan view schematically showing the arrangement of terminals of the first connector 10d when the first connector 10d and the second connector 110d are not connected. Fig. 23 is a partially enlarged perspective view of the first connector 10e when the first connector 10e and the second connector 110e are not connected. Fig. 24 is a cross-sectional view of the first connection terminal 13l1 and the third connection terminal 114l1 when the first connector 10f and the second connector 110f are not connected.

[0010] [First embodiment] A connector set 1 according to a first embodiment of the present invention will be described below with reference to the drawings. Fig. 1 is a perspective view of the connector set 1 when a first connector 10 and a second connector 110 are not connected.

[0011] 1, the direction from the second connector 110 to the first connector 10 is defined as the downward direction. The opposite direction to the downward direction is defined as the upward direction. The downward direction and the upward direction (vertical direction) correspond to the "first direction" of the present invention.

[0012] The connector set 1 is used to connect two circuit boards. As shown in FIG. 1, the connector set 1 includes a first connector 10 and a second connector 110.

[0013] [Structure of First Connector 10] The structure of the first connector 10 will be described with reference to the drawings. FIG. 2 is a perspective view of the first connector 10 when the first connector 10 and the second connector 110 are not connected. Note that in FIG. 2, only representative support portions SP among the multiple support portions SP are denoted by reference numerals. FIG. 3 is a perspective view of the first main body member 11 when the first connector 10 and the second connector 110 are not connected. FIG. 4 is a perspective view of the first contact terminals 12, first connection terminals 13l1 to 13l4, 13r1 to 13r4, and second connection terminals 14l1 to 14l5, 14r1 to 14r5 when the first connector 10 and the second connector 110 are not connected. FIG. 5 is a plan view schematically illustrating the arrangement of the terminals of the first connector 10 when the first connector 10 and the second connector 110 are not connected. In Fig. 5, "G" denotes a ground terminal connected to ground potential, and "S" denotes a signal terminal for inputting and outputting high-frequency signals. Fig. 6 is a perspective view of the first connection terminal 13l1 when the first connector 10 and the second connector 110 are not connected. Fig. 7 is a perspective view of the second connection terminal 14l1 when the first connector 10 and the second connector 110 are not connected.

[0014] As shown in FIG. 4 , the direction in which the first connection terminals 13l1 to 13l4 are arranged in this order is defined as the forward direction. The opposite direction of the forward direction is defined as the rearward direction. The forward and rearward directions are perpendicular to the downward and upward directions. The direction in which the first connection terminals 13l1 and 13r1 are arranged in this order is defined as the rightward direction. The opposite direction of the rightward direction is defined as the leftward direction. The rightward and leftward directions are perpendicular to the downward and forward directions. The forward and rearward directions (front-to-back directions) correspond to the "second direction" in this invention. The rightward and leftward directions (left-to-right directions) correspond to the "third direction" in this invention. However, the downward, upward, forward, rearward, rightward, and leftward directions in this specification are defined for convenience of explanation and may not coincide with the downward, upward, forward, rearward, rightward, and leftward directions when the connector set 1 is in use. In addition, in each drawing, the downward direction and the upward direction may be interchanged, the forward direction and the backward direction may be interchanged, and the right direction and the left direction may be interchanged.

[0015] As shown in FIG. 2, in this embodiment, the first connector 10 includes a first main body member 11, first contact terminals 12, first connection terminals 13l1 to 13l4, 13r1 to 13r4, and second connection terminals 14l1 to 14l5, 14r1 to 14r5.

[0016] 3, the first main body member 11 includes a frame portion 11a, a bottom portion 11b, first protrusions 11c1 to 11c12, and second protrusions 11d1 to 11d10. In this embodiment, the material of the first main body member 11 is resin. However, the material of the first main body member 11 is not limited to resin. The first protrusions 11c1 to 11c4, 11c9 to 11c12, and the second protrusions 11d1 to 11d10 each correspond to a "first protrusion" in the present invention.

[0017] When viewed in the vertical direction, the frame 11a has a ring shape that surrounds the first connection terminals 13l1 to 13l4, 13r1 to 13r4, the second connection terminals 14l1 to 14l5, 14r1 to 14r5, the first protrusions 11c1 to 11c12, and the second protrusions 11d1 to 11d10. The frame 11a has left and right sides that extend in the front-to-rear direction, and front and rear sides that extend in the left-to-right direction.

[0018] When viewed in the vertical direction, the bottom portion 11b covers a part of the lower surface of the area surrounded by the frame portion 11a.

[0019] The first protrusions 11c1 to 11c12 are provided on the bottom 11b. The first protrusions 11c1 to 11c4 are arranged in a row from back to front, in this order, with a gap between them. The first protrusions 11c5 to 11c8 are arranged in a row from back to front, in this order, with a gap between them. The first protrusions 11c9 to 11c12 are arranged in a row from back to front, in this order, with a gap between them. The first protrusions 11c1, 11c5, and 11c9 are arranged in a row from left to right, in this order, with a gap between them. The first protrusions 11c2, 11c6, and 11c10 are arranged in a row from left to right, in this order, with a gap between them. The first protrusions 11c3, 11c7, and 11c11 are arranged in a row from left to right, in this order, with a gap between them. The first protrusions 11c4, 11c8, and 11c12 are aligned in a line from left to right in this order with a gap therebetween.

[0020] The first protrusions 11c1 to 11c4 have recessed grooves formed therein for receiving a portion of each of the first connection terminals 13l1 to 13l4. The first protrusions 11c5 to 11c8 have recessed grooves formed therein for receiving a portion of each of the first connection terminals 13l1 to 13l4 and 13r1 to 13r4. The first protrusions 11c9 to 11c12 have recessed grooves formed therein for receiving a portion of each of the first connection terminals 13r1 to 13r4.

[0021] The second protrusions 11d1 to 11d10 are provided on the bottom 11b. The second protrusions 11d1 to 11d5 are arranged in a row from back to front, in this order, with a gap between them. The second protrusions 11d6 to 11d10 are arranged in a row from back to front, in this order, with a gap between them. The second protrusions 11d1 and 11d6 are arranged in a row from left to right, in this order, with a gap between them. The second protrusions 11d2 and 11d7 are arranged in a row from left to right, in this order, with a gap between them. The second protrusions 11d3 and 11d8 are arranged in a row from left to right, in this order, with a gap between them. The second protrusions 11d4 and 11d9 are arranged in a row from left to right, in this order, with a gap between them. The second protrusions 11d5 and 11d10 are aligned in a line from left to right with a gap therebetween.

[0022] The second protrusions 11d1 to 11d5 have recessed grooves formed therein for receiving a portion of each of the second connection terminals 14l1 to 14l5. The second protrusions 11d6 to 11d10 have recessed grooves formed therein for receiving a portion of each of the second connection terminals 14r1 to 14r5.

[0023] In the front-rear direction, first protrusions are located between adjacent second protrusions. In addition, second protrusions are located between adjacent first protrusions in the front-rear direction. In addition, first protrusions are located between adjacent second protrusions in the left-right direction. In addition, second protrusions are located between adjacent first protrusions in the left-right direction. In this embodiment, each of the first protrusions 11c1 to 11c12 and the second protrusions 11d1 to 11d10 is connected to at least one of the first protrusions 11c1 to 11c12 and the second protrusions 11d1 to 11d10.

[0024] In this embodiment, the first contact terminal 12 is connected to ground potential. As shown in FIG. 4 , the first contact terminal 12 has a ring shape surrounding the first connection terminals 13l1-13l4, 13r1-13r4, the second connection terminals 14l1-14l5, 14r1-14r5, the first protrusions 11c1-11c12, and the second protrusions 11d1-11d10 when viewed in the vertical direction. The first contact terminal 12 is supported by the frame portion 11a of the first body member 11 at multiple support portions SP. Specifically, the first contact terminal 12 is supported by the left side, right side, front side, and rear side of the frame portion 11a. The support portion SP located at the frontmost position among the multiple support portions SP overlaps with the first protrusions 11c4, 11c8, and 11c12 when viewed in the horizontal direction. Among the multiple support portions SP, the support portion SP located at the center in the front-rear direction overlaps with the first protrusions 11c2, 11c6, and 11c10 when viewed in the left-right direction. The first contact terminal 12 is fabricated by bending a plate-shaped metal member. In this embodiment, the first contact terminal 12 is made of a copper-based material such as phosphor bronze. The first contact terminal 12 may be connected to a power supply potential rather than to a ground potential. The first contact terminal 12 may be supported by the frame portion 11a of the first body member 11 at one support portion SP. The material of the first contact terminal 12 is not limited to a copper-based material such as phosphor bronze.

[0025] In this embodiment, high-frequency signals are input to and output from each of the first connection terminals 13l1 to 13l4 and 13r1 to 13r4. The first connection terminals 13l1 to 13l4 are aligned at a predetermined interval on a first straight line L1a parallel to the front-rear direction. The first connection terminals 13r1 to 13r4 are aligned at a predetermined interval on a first straight line L1b parallel to the front-rear direction. Note that each of the first connection terminals 13l1 to 13l4 and 13r1 to 13r4 may be a ground terminal connected to a ground potential or a power terminal connected to a power supply potential. Furthermore, the first connection terminals 13l1 to 13l4 only need to be aligned on the first straight line L1a parallel to the front-rear direction, and do not need to be aligned at a predetermined interval. Furthermore, the first connection terminals 13r1 to 13r4 only need to be aligned on the first straight line L1b parallel to the front-rear direction, and do not need to be aligned at a predetermined interval.

[0026] In this embodiment, the second connection terminals 14l1 to 14l5 and 14r1 to 14r5 are connected to ground potential. The second connection terminals 14l1 to 14l5 are arranged at predetermined intervals on a second straight line L2a parallel to the front-rear direction. The second connection terminals 14r1 to 14r5 are arranged at predetermined intervals on a second straight line L2b parallel to the front-rear direction. Each of the second connection terminals 14l1 to 14l5 and 14r1 to 14r5 may be a signal terminal for inputting and outputting a high-frequency signal or a power terminal connected to a power supply potential. The second connection terminals 14l1 to 14l5 only need to be arranged on the second straight line L2a parallel to the front-rear direction, and do not need to be arranged at predetermined intervals. The second connection terminals 14r1 to 14r5 only need to be arranged on the second straight line L2b parallel to the front-rear direction, and do not need to be arranged at predetermined intervals.

[0027] In this embodiment, the first connection terminals 13l1-13l4 and the second connection terminals 14l1-14l5 are arranged at a predetermined interval in the front-rear direction. The first connection terminals 13r1-13r4 and the second connection terminals 14r1-14r5 are also arranged at a predetermined interval in the front-rear direction. The first connection terminals 13l1-13l4, 13r1-13r4, and the second connection terminals 14l1-14l5, 14r1-14r5 are not in contact with each other. As shown in FIG. 5 , a first connection terminal is located between adjacent second connection terminals in the front-rear direction. A first ground terminal is located between adjacent first connection terminals in the front-rear direction.

[0028] The structures of the first connection terminals 13l1-13l4, 13r1-13r4 and the second connection terminals 14l1-14l5, 14r1-14r5 will be described in detail using the first connection terminal 13l1 and the second connection terminal 14l1 as examples. In this embodiment, the first connection terminals 13l2-13l4 each have the same shape as the first connection terminal 13l1, and therefore their description will be omitted. The first connection terminals 13r1-13r4 each have a shape that is bilaterally symmetrical to the first connection terminals 13l1-13l4, and therefore their description will be omitted. The second connection terminals 14l2-14l5 each have the same shape as the second connection terminal 14l1, and therefore their description will be omitted. The second connection terminals 14r1 to 14r5 have shapes that are bilaterally symmetrical to the second connection terminals 14l1 to 14l5, respectively, and therefore will not be described in detail. First, the structure of the first connection terminal 13l1 will be described in detail.

[0029] The first connection terminal 13l1 is fabricated by bending a plate-shaped metal member. In this embodiment, the first connection terminal 13l1 is made of a copper-based material such as phosphor bronze. However, the material of the first connection terminal 13l1 is not limited to a copper-based material such as phosphor bronze.

[0030] 6, the first connection terminal 13l1 includes a wide portion WP, a first mounting portion MP1, and a first contact portion CP1. The wide portion WP of each of the first connection terminals 13l1 to 13l4 and 13r1 to 13r4 corresponds to the "first wide portion" of the present invention. The first mounting portion MP1 of each of the first connection terminals 13l1 to 13l4 and 13r1 to 13r4 corresponds to the "first mounting portion" of the present invention.

[0031] In this embodiment, the first mounting portion MP1 extends in the left-right direction. More specifically, the first mounting portion MP1 has an upper surface and a lower surface that are aligned in the vertical direction. When the first connector 10 is mounted on a first circuit board (not shown) disposed below the first connector 10, the lower surface of the first mounting portion MP1 is electrically connected to an external electrode of the first circuit board. The lower surface of the first mounting portion MP1 of the first connection terminal 13l1 is fixed to the external electrode of the first circuit board by, for example, solder (not shown).

[0032] The wide portion WP is located above the first mounting portion MP1. The width of the wide portion WP in the front-rear direction is wider than the width of the other portions of the first connection terminal 13l1 in the front-rear direction. That is, the width of the wide portion WP in the front-rear direction is wider than both the width of the first mounting portion MP1 and the width of the first contact portion CP1 in the front-rear direction. In this embodiment, the width of the wide portion WP in the front-rear direction is non-uniform. The wide portion WP of the first connection terminal 13l1 is press-fitted into the concave groove of the first protrusion 11c1. As a result, the wide portion WP of the first connection terminal 13l1 is supported by the first protrusion 11c1 of the first body member 11. Similarly, the wide portions WP of the first connection terminals 13l2 to 13l4 are supported by the first protrusions 11c2 to 11c4 of the first body member 11, respectively. Further, the wide portions WP of the first connection terminals 13r1 to 13r4 are supported by the first protrusions 11c9 to 11c12 of the first main body member 11, respectively. The width of the wide portions WP in the front-rear direction may be uniform.

[0033] The first contact portion CP1 has a first curved portion P31 that is curved upward and a second curved portion P32 that is curved downward. The first curved portion P31 has a first end and a second end. The second curved portion P32 has a third end and a fourth end FE1. The first end of the first curved portion P31 is connected to the upper end of the wide portion WP. The third end of the second curved portion P32 is connected to the second end of the first curved portion P31. The fourth end FE1 of the second curved portion P32 is not connected to any other member and is a free end. The second curved portions P32 of the first connection terminals 13l1 to 13l4 and 13r1 to 13r4 correspond to the "first curved portion" of the present invention.

[0034] The second curved portion P32 has a first inner surface IS32 and a first outer surface OS32. The first inner surface IS32 is a curved surface including at least a portion facing upward. The first outer surface OS32 is a curved surface including at least a portion facing downward. In this embodiment, a convex portion CPP32 is formed on the first inner surface IS32.

[0035] Next, the structure of the second connection terminal 14l1 will be described in detail.

[0036] The second connection terminal 14l1 is fabricated by bending a plate-shaped metal member. In this embodiment, the second connection terminal 14l1 is made of a copper-based material such as phosphor bronze. However, the material of the second connection terminal 14l1 is not limited to a copper-based material such as phosphor bronze.

[0037] As shown in FIG. 7 , the second connection terminal 14l1 includes a second mounting portion MP2 and a second contact portion CP2. In this embodiment, the second connection terminal 14l1 does not have a wide portion WP. The second connection terminal 14l1 is embedded in a concave groove in the second protrusion 11d1. This allows the second connection terminal 14l1 to be supported by the second protrusion 11d1 of the first body member 11. Similarly, the second connection terminals 14l2 to 14l5 are supported by the second protrusions 11d2 to 11d5 of the first body member 11, respectively. Furthermore, the second connection terminals 14r1 to 14r5 are supported by the second protrusions 11d6 to 11d10 of the first body member 11, respectively.

[0038] In this embodiment, the second mounting portion MP2 extends in the left-right direction. More specifically, the second mounting portion MP2 has an upper surface and a lower surface that are aligned in the vertical direction. When the first connector 10 is mounted on a first circuit board (not shown) disposed below the first connector 10, the lower surface of the second mounting portion MP2 is electrically connected to an external electrode of the first circuit board. The lower surface of the second mounting portion MP2 is fixed to the external electrode of the first circuit board by, for example, solder (not shown).

[0039] The second contact portion CP2 has a third curved portion P21 that is curved upward. The third curved portion P21 has a fifth end and a sixth end. The fifth end of the third curved portion P21 is connected to the right end of the second mounting portion MP2.

[0040] The third curved portion P21 has a second inner surface IS21 and a second outer surface OS21. The second inner surface IS21 is a curved surface including at least a portion facing downward. The second outer surface OS21 is a curved surface including at least a portion facing downward. In this embodiment, a recess REP21 is formed in the second outer surface OS21.

[0041] [Structure of Second Connector 110] The structure of the second connector 110 will be described with reference to the drawings. FIG. 8 is a perspective view of the second connector 110 when the first connector 10 and the second connector 110 are not connected. FIG. 9 is a perspective view of the second main body member 111 when the first connector 10 and the second connector 110 are not connected. FIG. 10 is a perspective view of the second contact terminal 112, the fourth connection terminals 113l1 to 113l4, 113r1 to 113r4, and the third connection terminals 114l1 to 114l5, 114r1 to 114r5 when the first connector 10 and the second connector 110 are not connected. FIG. 11 is a perspective view of the fourth connection terminal 113l1 when the first connector 10 and the second connector 110 are not connected. FIG. 12 is a perspective view of the third connection terminal 114l1 when the first connector 10 and the second connector 110 are not connected.

[0042] As shown in FIG. 8, the second connector 110 includes a second body member 111, second contact terminals 112, fourth connection terminals 113l1 to 113l4, fourth connection terminals 113r1 to 113r4, and third connection terminals 114l1 to 114l5, 114r1 to 114r5.

[0043] 9, the second main body member 111 includes a frame portion 111a, a bottom portion 111b, third protrusions 111c1 to 111c15, and fourth protrusions 111d1 to 111d8. In this embodiment, the material of the second main body member 111 is resin. However, the material of the second main body member 111 is not limited to resin. Each of the third protrusions 111c1 to 111c15 and the fourth protrusions 111d1 to 111d8 corresponds to the "second protrusion" of the present invention.

[0044] When viewed in the vertical direction, the frame portion 111a has a ring shape that surrounds the fourth connection terminals 113l1 to 113l4, 113r1 to 113r4, the third connection terminals 114l1 to 114l5, 114r1 to 114r5, the third protrusions 111c1 to 111c15, and the fourth protrusions 111d1 to 111d8. The frame portion 111a has left and right sides that extend in the front-to-rear direction, and front and rear sides that extend in the left-to-right direction.

[0045] When viewed in the vertical direction, the bottom portion 111b covers a part of the upper surface of the area surrounded by the frame portion 111a.

[0046] The third protrusions 111c1 to 111c15 are provided on the bottom 111b. The third protrusions 111c1 to 11c5 are arranged in a row from back to front, in this order, with gaps between them. The third protrusions 111c6 to 111c10 are arranged in a row from back to front, in this order, with gaps between them. The third protrusions 111c11 to 111c15 are arranged in a row from back to front, in this order, with gaps between them. The third protrusions 111c1, 111c6, and 111c11 are arranged in a row from left to right, in this order, with gaps between them. The third protrusions 111c2, 111c7, and 111c12 are arranged in a row from left to right, in this order, with gaps between them. The third protrusions 111c3, 111c8, and 111c13 are aligned in a row from left to right with a gap therebetween, in this order. The third protrusions 111c4, 111c9, and 111c14 are aligned in a row from left to right with a gap therebetween, in this order. The third protrusions 111c5, 111c10, and 111c15 are aligned in a row from left to right with a gap therebetween, in this order.

[0047] The third protrusions 111c1 to 111c5 have recessed grooves formed therein for receiving a portion of each of the third connection terminals 114l1 to 114l5. The third protrusions 111c6 to 111c10 have recessed grooves formed therein for receiving a portion of each of the third connection terminals 114l1 to 114l5 and 114r1 to 114r5. The third protrusions 111c11 to 111c15 have recessed grooves formed therein for receiving a portion of each of the third connection terminals 114r1 to 114r5.

[0048] The fourth protrusions 111d1 to 111d8 are provided on the bottom 111b. The fourth protrusions 111d1 to 111d4 are arranged in a line from back to front, in this order, with a gap between them. The fourth protrusions 111d5 to 111d8 are arranged in a line from back to front, in this order, with a gap between them. The fourth protrusions 111d1 and 111d5 are arranged in a line from left to right, in this order, with a gap between them. The fourth protrusions 111d2 and 111d6 are arranged in a line from left to right, in this order, with a gap between them. The fourth protrusions 111d3 and 111d7 are arranged in a line from left to right, in this order, with a gap between them. The fourth protrusions 111d4 and 111d8 are arranged in a line from left to right, in this order, with a gap between them.

[0049] The fourth protrusions 111d1 to 111d4 have recessed grooves formed therein for receiving a portion of each of the fourth connection terminals 113l1 to 113l4. The fourth protrusions 111d5 to 111d8 have recessed grooves formed therein for receiving a portion of each of the fourth connection terminals 113r1 to 113r4.

[0050] In the front-rear direction, third protrusions are located between adjacent fourth protrusions. In addition, fourth protrusions are located between adjacent third protrusions in the front-rear direction. In addition, third protrusions are located between adjacent fourth protrusions in the left-right direction. In addition, fourth protrusions are located between adjacent third protrusions in the left-right direction. In this embodiment, each of the third protrusions 111c1 to 111c15 and the fourth protrusions 111d1 to 111d8 is connected to at least one of the third protrusions 111c1 to 111c15 and the fourth protrusions 111d1 to 111d8. Note that the third protrusions 111c1 to 111c15 and the fourth protrusions 111d1 to 111d8 do not have to be connected to each other. In this case, it is possible to prevent stress received by any one of the fourth connection terminals 113l1 to 113l4, 113r1 to 113r4 and the third connection terminals 114l1 to 114l5, 114r1 to 114r5 from being transmitted to another terminal of the fourth connection terminals 113l1 to 113l4, 113r1 to 113r4 and the third connection terminals 114l1 to 114l5, 114r1 to 114r5. Furthermore, image detection makes it easier to detect non-defective products.

[0051] In this embodiment, the second contact terminal 112 is connected to a ground potential. As shown in FIG. 10 , the second contact terminal 112 has a ring shape surrounding the third protrusions 111c1 to 111c15 and the fourth protrusions 111d1 to 111d8 when viewed in the vertical direction. The second contact terminal 112 is supported by the second body member 111. Specifically, the second contact terminal 112 is supported by the left side of the frame portion 111a, the right side of the frame portion 111a, the front side of the frame portion 111a, and the rear side of the frame portion 111a. The second contact terminal 112 is fabricated by bending a plate-shaped metal member. In this embodiment, the second contact terminal 112 is made of a copper-based material such as phosphor bronze. Note that the second contact terminal 112 may be connected to a power supply potential rather than to a ground potential. Furthermore, the material of the second contact terminal 112 is not limited to a copper-based material such as phosphor bronze.

[0052] In this embodiment, each of the third connection terminals 114l1 to 114l5 and 114r1 to 114r5 is connected to ground potential. The third connection terminals 114l1 to 114l5 are aligned at predetermined intervals on a third line L3a parallel to the front-rear direction. The third connection terminals 114r1 to 114r5 are aligned at predetermined intervals on a third line L3b parallel to the front-rear direction. Note that the third line L3a and the third line L3b coincide with the first line L1a and the first line L1b, respectively, when the first connector 10 and the second connector 110 are connected. Note that each of the third connection terminals 114l1 to 114l5 and 114r1 to 114r5 may be a signal terminal for inputting and outputting a high-frequency signal or a power terminal connected to a power supply potential. The third connection terminals 114l1 to 114l5 only need to be aligned on a third straight line L3a parallel to the front-rear direction, and do not need to be spaced apart by a predetermined distance.Furthermore, the third connection terminals 114r1 to 114r5 only need to be aligned on a third straight line L3b parallel to the front-rear direction, and do not need to be spaced apart by a predetermined distance.

[0053] High-frequency signals are input to and output from each of the fourth connection terminals 113l1 to 113l4 and 113r1 to 113l4. In this embodiment, the fourth connection terminals 113l1 to 113l4 are aligned at predetermined intervals on a fourth line L4a parallel to the front-rear direction. The fourth connection terminals 113r1 to 113r4 are aligned at predetermined intervals on a fourth line L4b parallel to the front-rear direction. Note that the fourth line L4a and the fourth line L4b coincide with the second line L2a and the second line L2b, respectively, when the first connector 10 and the second connector 110 are connected. Note that each of the fourth connection terminals 113l1 to 113l4 and 113r1 to 113r4 may be a ground terminal connected to a ground potential or a power terminal connected to a power supply potential. The fourth connection terminals 113l1 to 113l4 only need to be aligned on a fourth straight line L4a parallel to the front-rear direction, and do not need to be spaced apart by a predetermined distance. The fourth connection terminals 113r1 to 113r4 only need to be aligned on a fourth straight line L4b parallel to the front-rear direction, and do not need to be spaced apart by a predetermined distance.

[0054] In this embodiment, the fourth connection terminals 113l1 to 113l4 and the third connection terminals 114l1 to 114l5 are arranged at a predetermined interval in the front-to-rear direction. Furthermore, the fourth connection terminals 113r1 to 113r4 and the third connection terminals 114r1 to 114r5 are arranged at a predetermined interval in the front-to-rear direction. The fourth connection terminals 113l1 to 113l4, 113r1 to 113r4, and the third connection terminals 114l1 to 114l5, 114r1 to 114r5 are not in contact with each other. A fourth connection terminal is located between adjacent third connection terminals in the front-to-rear direction. Furthermore, a third connection terminal is located between adjacent fourth connection terminals in the front-to-rear direction.

[0055] In this embodiment, the fourth connection terminals 113l1 to 113l4 have the same shape. The fourth connection terminals 113r1 to 113r4 have shapes that are bilaterally symmetrical to the fourth connection terminals 113l1 to 113l4. As shown in FIG. 11 , the fourth connection terminal 113l1 has a shape that is vertically symmetrical to the second connection terminal 14l1, and therefore a description thereof will be omitted.

[0056] In this embodiment, the third connection terminals 114l1 to 114l5 have the same shape. Furthermore, each of the third connection terminals 114r1 to 114r5 has a shape that is bilaterally symmetrical to each of the third connection terminals 114l1 to 114l4. As shown in FIG. 12, the third connection terminal 114l1 has a shape that is vertically symmetrical to the first connection terminal 13l1, and therefore a description thereof will be omitted. The wide portions WP of each of the third connection terminals 114l1 to 114l5 and 114r1 to 114r5 correspond to the "second wide portion" of the present invention. Furthermore, the first mounting portion MP1 of each of the third connection terminals 114l1 to 114l5 and 114r1 to 114r5 corresponds to the "second mounting portion" of the present invention. The second curved portion P32 of each of the third connection terminals 114l1 to 114l5 and 114r1 to 114r5 corresponds to the "second curved portion" of the present invention.

[0057] The fourth connection terminals 113l1 to 113l4 and 113r1 to 113r4 are embedded in the recessed grooves of the fourth protrusions 111d1 to 111d8, respectively, so that the fourth connection terminals 113l1 to 113l4 and 113r1 to 113r4 are supported by the fourth protrusions 111d1 to 111d8 of the second body member 111, respectively.

[0058] The upper surface of the second mounting portion MP2 of each of the fourth connection terminals 113l1 to 113l4 and 113r1 to 113r4 is electrically connected to an external electrode of a second circuit board (not shown) when the second connector 110 is mounted on the second circuit board arranged on the second connector 110. The upper surface of the second mounting portion MP2 of each of the fourth connection terminals 113l1 to 113l4 and 113r1 to 113r4 is fixed to the external electrode of the second circuit board by, for example, solder (not shown).

[0059] The wide portions WP of the third connection terminals 114l1 to 114l5 and 114r1 to 114r5 are press-fitted into the concave grooves of the third protrusions 111c1 to 111c5 and 111c11 to 111c15, respectively. As a result, the wide portions WP of the third connection terminals 114l1 to 114l5 and 114r1 to 114r5 are supported by the third protrusions 111c1 to 111c5 and 111c11 to 111c15 of the second body member 111, respectively.

[0060] The upper surface of the first mounting portion MP1 of each of the third connection terminals 114l1 to 114l5 and 114r1 to 114r5 is electrically connected to an external electrode of a second circuit board (not shown) when the second connector 110 is mounted on the second circuit board (not shown) disposed on the second connector 110. The upper surface of the first mounting portion MP1 is fixed to the external electrode of the second circuit board by, for example, solder (not shown).

[0061] [Structure of Connector Set 1] Next, the structure of the connector set 1 will be described with reference to the drawings. Fig. 13 is a perspective view of the connector set 1 when the first connector 10 and the second connector 110 are connected. Fig. 14 is a cross-sectional view showing the connection between the second connection terminal 14l1 and the third connection terminal 114l1 when the first connector 10 and the second connector 110 are connected. Fig. 15 is a cross-sectional view showing the connection between the first connection terminal 13l1 and the fourth connection terminal 113l1 when the first connector 10 and the second connector 110 are connected. Fig. 16 is a cross-sectional view of the first connection terminals 13l1 to 13l4 and the third connection terminals 114l1 to 114l5 when the first connector 10 and the second connector 110 are connected.

[0062] The second main body member 111 of the second connector 110 is inserted into the area surrounded by the frame portion 11a when the first connector 10 is viewed from below. As shown in Fig. 13, the second connector 110 is connected to the first connector 10 in the up-down direction. When the first connector 10 and the second connector 110 are connected, the second connector 110 is positioned above the first connector 10. At this time, the first protrusions 11c1 to 11c12 and the second protrusions 11d1 to 11d10 of the first connector 10 and the third protrusions 111c1 to 111c15 and the fourth protrusions 111d1 to 114d8 of the second connector 110 do not overlap with each other when viewed from above.

[0063] 14 , when the first connector 10 and the second connector 110 are connected, the second connection terminal 14l1 of the first connector 10 is inserted into the second curved portion P32 of the third connection terminal 114l1 of the second connector 110. As a result, the second connection terminal 14l1 of the first connector 10 comes into contact with the third connection terminal 114l1 of the second connector 110 and is connected to the third connection terminal 114l1 of the second connector 110. At this time, the convex portion CPP32 of the third connection terminal 114l1 fits into the concave portion REP21 of the second connection terminal 14l1. As a result, the third connection terminal 114l1 is supported by the second connection terminal 14l1. Similarly, when the first connector 10 and the second connector 110 are connected, each of the second connection terminals 14l2 to 14l5, 14r1 to 14r5 of the first connector 10 is inserted into the inside of the second curved portion P32 of each of the third connection terminals 114l2 to 114l5, 114r1 to 114r5 of the second connector 110. As a result, the second connection terminals 14l2 to 14l5, 14r1 to 14r5 of the first connector 10 come into contact with the third connection terminals 114l2 to 114l5, 114r1 to 114r5 of the second connector 110, and are connected to the third connection terminals 114l2 to 114l5, 114r1 to 114r5 of the second connector 110. At this time, the protrusions CPP32 of the third connection terminals 114l2 to 114l5 and 114r1 to 114r5 fit into the recesses REP21 of the second connection terminals 14l2 to 14l5 and 14r1 to 14r5, respectively. As a result, the third connection terminals 114l2 to 114l5 and 114r1 to 114r5 are supported by the second connection terminals 14l2 to 14l5 and 14r1 to 14r5, respectively.

[0064] 15 , when the first connector 10 and the second connector 110 are connected, the fourth connection terminal 113l1 of the second connector 110 is inserted into the second curved portion P32 of the first connection terminal 13l1 of the first connector 10. As a result, the fourth connection terminal 113l1 of the second connector 110 comes into contact with the first connection terminal 13l1 of the first connector 10 and is connected to the first connection terminal 13l1 of the first connector 10. At this time, the convex portion CPP32 of the first connection terminal 13l1 fits into the concave portion REP21 of the fourth connection terminal 113l1. As a result, the first connection terminal 13l1 is supported by the fourth connection terminal 113l1. Similarly, when the first connector 10 and the second connector 110 are connected, the fourth connection terminals 113l2 to 113l4 and 113r1 to 113r4 of the second connector 110 are inserted into the second curved portions P32 of the first connection terminals 13l2 to 13l4 and 13r1 to 13r4 of the first connector 10. As a result, the fourth connection terminals 113l2 to 113l4 and 113r1 to 113r4 of the second connector 110 come into contact with the first connection terminals 13l2 to 13l4 and 13r1 to 13r4 of the first connector 10, and are connected to the first connection terminals 13l2 to 13l4 and 13r1 to 13r4 of the first connector 10, respectively. At this time, the protruding portions CPP32 of the first connection terminals 13l2 to 13l4 and 13r1 to 13r4 fit into the recessed portions REP21 of the fourth connection terminals 113l2 to 113l4 and 113r1 to 113r4, respectively. As a result, the first connection terminals 13l2 to 13l4 and 13r1 to 13r4 are supported by the fourth connection terminals 113l2 to 113l4 and 113r1 to 113r4, respectively.

[0065] 14 and 15 , in this embodiment, the second connection terminal (second connection terminal 14l1 in the example of FIG. 14 ) is mirror-symmetric with the adjacent fourth connection terminal (fourth connection terminal 113l1 in the example of FIG. 15 ) on the second straight line L2a with respect to the virtual mirror plane MS perpendicular to the up-down direction. Also, the first connection terminal (first connection terminal 13l1 in the example of FIG. 15 ) is mirror-symmetric with the adjacent third connection terminal (third connection terminal 114l1 in the example of FIG. 14 ) on the first straight line L1a with respect to the virtual mirror plane MS perpendicular to the up-down direction.

[0066] As shown in FIG. 16 , a second connection terminal is located between adjacent first connection terminals on the first line L1a. Furthermore, a first connection terminal is located between adjacent second connection terminals on the first line L1a. The positions of the wide portions WP of the first connection terminals 13l1-13l4 of the first connector 10 and the positions of the wide portions WP of the third connection terminals 114l1-114l5 are offset in the vertical direction. In this embodiment, the positions of the wide portions WP of the third connection terminals 114l1-114l5 are located above the wide portions WP of the first connection terminals 13l1-13l4 of the first connector 10. The same applies to the first line L1b, the second line L2a, and the second line L2b, so further description will be omitted.

[0067] [Effect] The connector set 1 can suppress a decrease in isolation between terminals. More specifically, when the first connector 10 and the second connector 110 are connected, the third connection terminal 114l1 is located adjacent to the first connection terminal 13l1 on a first straight line L1a parallel to the front-rear direction. The first connection terminal 13l1 and the third connection terminal 114l1 each have a wide portion WP. Therefore, in the front-rear direction, the distance between the first connection terminal 13l1 and the fourth connection terminal 113l1 and the second connection terminal 14l1 and the third connection terminal 114l1 is the shortest distance between the wide portion WP of the first connection terminal 13l1 and the wide portion WP of the third connection terminal 114l1. The positions of the wide portion WP of the first connection terminal 13l1 and the wide portion WP of the third connection terminal 114l1 are offset in the up-down direction. Therefore, the distance between the wide portion WP of the first connection terminal 13l1 and the wide portion WP of the third connection terminal 114l1 can be increased, thereby suppressing a decrease in isolation between the first connection terminal 13l1 and the third connection terminal 114l1. In other words, the distance between the wide portion WP of the first connection terminal 13l1 and the wide portion WP of the third connection terminal 114l1 can be increased, thereby suppressing a decrease in electrical insulation between the first connection terminal 13l1 and the third connection terminal 114l1. With the connector set 1, when the isolation is the same as in the conventional connector set, the distance in the front-to-rear direction between the first connection terminal 13l1 and the fourth connection terminal 113l1 and the adjacent second connection terminal 14l1 and third connection terminal 114l1 on the first line L1a can be reduced.

[0068] Furthermore, the connector set 1 can stabilize the electrical characteristics of the first connection terminals 13l1-13l4, 13r1-13r4 and the third connection terminals 114l1-114l5, 114r1-114r5. More specifically, for example, the wide portion WP of the first connection terminal 13l1 is supported by the first body member 11. The wide portion WP of the third connection terminal 114l1 is supported by the second body member 111. Therefore, as shown in this embodiment, the shape of the third connection terminal 114l1 can be made vertically symmetrical with the shape of the first connection terminal 13l1. This allows the elastic modulus of the first contact portion CP1 of the third connection terminal 114l1 to be approximately equal to the elastic modulus of the first contact portion CP1 of the first connection terminal 13l1. Therefore, in the connector set 1, the elastic modulus of the contact portions of the multiple first connection terminals and multiple third connection terminals can be made approximately uniform. This allows the deformation of the contact portions of the first and third connection terminals to be substantially uniform, thereby allowing the changes in the resistance, inductance, and capacitance of the first and third connection terminals to be substantially uniform. This stabilizes the electrical characteristics of the first and third connection terminals. For example, the change in the characteristic impedance of the first connection terminal due to contact between the first connection terminal and the fourth connection terminal, and the change in the characteristic impedance of the fourth connection terminal due to contact between the fourth connection terminal and the third connection terminal, can be kept within a predetermined range. Therefore, the connector set 1 stabilizes the electrical characteristics of the first connection terminals 13l1-13l4, 13r1-13r4 and the third connection terminals 114l1-114l5, 114r1-114r5.

[0069] Furthermore, the connector set 1 allows the first contact terminals 12 to be more firmly supported by the frame portion 11a of the first body member 11. More specifically, the first contact terminals 12 are supported by the frame portion 11a of the first body member 11 at the support portions SP. When viewed in the left-right direction, the support portions SP overlap the first protrusions that support the first connection terminals. Therefore, the support portions SP receive the left-right stress that occurs when the first connection terminals are connected to the fourth connection terminals. For example, the support portion SP located on the left side of the frame portion 11a receives stress in the leftward direction from the first connection terminals 13l1 to 13l4. Similarly, the support portion SP located on the right side of the frame portion 11a receives stress in the rightward direction from the first connection terminals 13r1 to 13r4. These stress directions are directions in which the first contact terminals 12 are firmly supported by the frame portion 11a of the first body member 11. Therefore, according to the connector set 1, the first contact terminals 12 can be supported more firmly on the frame portion 11a of the first main body member 11.

[0070] [First Modification] A connector set 1a according to a first modification of the present invention will be described below with reference to the drawings. Fig. 17 is a perspective view of the first connection terminal 13l1 when the first connector 10a and the second connector 110a are not connected. Fig. 18 is a cross-sectional view showing the connection between the second connection terminal 14l1 and the third connection terminal 114l1 when the first connector 10a and the second connector 110a are connected. Fig. 19 is a cross-sectional view showing the connection between the first connection terminal 13l1 and the fourth connection terminal 113l1 when the first connector 10a and the second connector 110a are connected. Regarding the connector set 1a according to the first modification, only the differences from the connector set 1 according to the first embodiment will be described, and the rest will be omitted.

[0071] The connector set 1a according to the first modified example differs from the connector set 1 according to the first embodiment in the respective shapes of the first connection terminals 13l1 to 13l4, first connection terminals 13r1 to 13r4, and second connection terminals 14l1 to 14l5, 14r1 to 14r5 of the first connector 10a, and in the respective shapes of the fourth connection terminals 113l1 to 113l4, 113r1 to 113r4, and third connection terminals 114l1 to 114l5, 114r1 to 114r5 of the second connector 110a.

[0072] The second connection terminal 14l1 has a shape that is bilaterally symmetrical to the first connection terminal 13l1, and therefore its description will be omitted. The third connection terminal 114l1 has a shape that is bilaterally symmetrical to the first connection terminal 13l1, and therefore its description will be omitted. The fourth connection terminal 113l1 has a shape that is bilaterally symmetrical to the third connection terminal 114l1, and therefore its description will be omitted.

[0073] The structure of the first connection terminal 13l1 will be described in detail.

[0074] 17, the wide portion WP is connected to the first mounting portion MP1 and curves upward relative to the first mounting portion MP1.

[0075] The first contact portion CP1 is connected to the wide portion WP and includes a fourth curved portion P41 that is curved upward. More specifically, when viewed from the front, the fourth curved portion P41 has a U-shape rotated 180 degrees clockwise. The fourth curved portion P41 has a seventh end and an eighth end FE2. The seventh end of the fourth curved portion P41 is connected to the upper end of the wide portion WP. The eighth end FE2 of the fourth curved portion P41 is not connected to any other member and is a free end.

[0076] In this modification, the wide portion WP of the first connection terminal 13l1 is press-fit into the concave groove of the first protrusion 11c1. This allows the wide portion WP of the first connection terminal 13l1 to be supported by the first protrusion 11c1 of the first body member 11. More specifically, the left, rear, and front surfaces of the wide portion WP of the first connection terminal 13l1 are in contact with the concave groove of the first protrusion 11c1. The right surface of the wide portion WP of the first connection terminal 13l1 is exposed from the concave groove of the first protrusion 11c1. In other words, the wide portion WP of the first connection terminal 13l1 is exposed from the first body member 11. The first contact portion CP1 of the first connection terminal 13l1 is not in contact with the first body member 11. Similarly, the wide portions WP of the first connection terminals 13l2 to 13l4, 13r1 to 13r4 and the second connection terminals 14l1 to 14l5, 14r1 to 14r5 are exposed from the first body member 11. Furthermore, the wide portions WP of the fourth connection terminals 113l1 to 113l4, 113r1 to 113r4 and the third connection terminals 114l1 to 114l5, 114r1 to 114r5 are exposed from the second body member 111.

[0077] 18 , when the first connector 10a and the second connector 110a are connected, the third connection terminal 114l1 of the second connector 110a is connected to the second connection terminal 14l1 of the first connector 10a by contacting the fourth curved portion P41 of the third connection terminal 114l1 with the fourth curved portion P41 of the second connection terminal 14l1 of the first connector 10a. At this time, the second contact portion CP2 of the third connection terminal 114l1 presses the second contact portion CP2 of the second connection terminal 14l1 in a downward and right direction, and the second contact portion CP2 of the second connection terminal 14l1 presses the second contact portion CP2 of the third connection terminal 114l1 in an upward and left direction, causing the second contact portion CP2 of the third connection terminal 114l1 and the second contact portion CP2 of the second connection terminal 14l1 to elastically deform. More specifically, the second contact portion CP2 of the third connection terminal 114l1 elastically deforms from the wide portion WP of the third connection terminal 114l1 supported by the second body member 111. In addition, the second contact portion CP2 of the second connection terminal 14l1 elastically deforms from the wide portion WP of the second connection terminal 14l1 supported by the first body member 11.

[0078] Note that the connection between each of the third connection terminals 114l2 to 114l5, 114r1 to 114r5 of the second connector 110a and each of the second connection terminals 14l1 to 14l5, 14r1 to 14r5 of the first connector 10a is similar to the connection between the third connection terminal 114l1 of the second connector 110a and the second connection terminal 14l1 of the first connector 10a, and therefore will not be described here.

[0079] 19 , when the first connector 10a and the second connector 110a are connected, the fourth connection terminal 113l1 of the second connector 110a is connected to the first connection terminal 13l1 of the first connector 10a by contacting the fourth curved portion P41 of the fourth connection terminal 113l1 with the fourth curved portion P41 of the first connection terminal 13l1 of the first connector 10a. At this time, the first contact portion CP1 of the fourth connection terminal 113l1 presses the first contact portion CP1 of the first connection terminal 13l1 in a lower left direction, and the first contact portion CP1 of the first connection terminal 13l1 presses the first contact portion CP1 of the fourth connection terminal 113l1 in an upper right direction, thereby elastically deforming the first contact portion CP1 of the fourth connection terminal 113l1 and the first contact portion CP1 of the first connection terminal 13l1. More specifically, the first contact portion CP1 of the fourth connection terminal 113l1 elastically deforms from the wide portion WP of the third connection terminal 114l1 supported by the second body member 111. The second contact portion CP2 of the second connection terminal 14l1 elastically deforms from the wide portion WP of the second connection terminal 14l1 supported by the first body member 111.

[0080] Note that the connection between each of the fourth connection terminals 113l2 to 113l4, 113r1 to 113r4 of the second connector 110a and each of the first connection terminals 13l2 to 13l4 and first connection terminals 13r1 to 13r4 of the first connector 10a is similar to the connection between the fourth connection terminal 113l1 of the second connector 110a and the first connection terminal 13l1 of the first connector 10a, and therefore will not be described here.

[0081] 18 and 19 , in this modification as well, the second connection terminal (second connection terminal 14l1 in the example of FIG. 18 ) is mirror-symmetric with the adjacent fourth connection terminal (fourth connection terminal 113l1 in the example of FIG. 19 ) on the second straight line L2a with respect to a predetermined virtual mirror-symmetry plane MS perpendicular to the up-down direction. Moreover, the first connection terminal (first connection terminal 13l1 belonging to the second set B1 in the example of FIG. 19 ) is mirror-symmetric with the adjacent third connection terminal (third connection terminal 114l1 in the example of FIG. 18 ) on the first straight line L1a with respect to the predetermined virtual mirror-symmetry plane MS perpendicular to the up-down direction.

[0082] The connector set 1a described above also achieves the same effects as the connector set 1. Furthermore, according to the connector set 1a, in the first connector 10a, when the first mounting portion MP1 is fixed to the external electrode of the first circuit board, the wide portion WP connected to the first mounting portion MP1 is used for positioning in the left-right direction, which allows the first connection terminal to be arranged along the shape of the first main body member 11, making it easier to position the first connection terminal in the left-right direction.

[0083] Furthermore, according to the connector set 1a, when the first mounting portion MP1 of the second connector 110a is fixed to the external electrode of the second circuit board, the wide portion WP connected to the first mounting portion MP1 is used for left-right positioning, so that the third connection terminal can be positioned in accordance with the shape of the second main body member 111, making it easier to position the third connection terminal in the left-right direction.

[0084] Furthermore, connector set 1a increases the degree of freedom of deformation of the first connection terminal. More specifically, the first wide portion of the first connection terminal is exposed from first body member 11. Therefore, the degree of freedom of deformation of the first connection terminal is increased compared to when the first wide portion of the first connection terminal is not exposed from first body member 11. As a result, connector set 1a increases the degree of freedom of deformation of the first connection terminal.

[0085] Furthermore, according to connector set 1a, the third connection terminal has a higher degree of freedom of deformation. More specifically, the second wide portion of the third connection terminal is exposed from second body member 111. Therefore, the third connection terminal has a higher degree of freedom of deformation compared to when the second wide portion of the third connection terminal is not exposed from second body member 111. As a result, according to connector set 1a, the third connection terminal has a higher degree of freedom of deformation.

[0086] [Second Modification] A connector set 1b according to a second modification of the present invention will be described below with reference to the drawings. Fig. 20 is a plan view schematically illustrating the arrangement of the terminals of the first connector 10b when the first connector 10b and the second connector 110b are not connected. In Fig. 20, "G" denotes a ground terminal connected to ground potential, and "S" denotes a signal terminal through which high-frequency signals are input and output. Regarding the connector set 1b according to the second modification, only the differences from the connector set 1 according to the first embodiment will be described, and the rest will be omitted.

[0087] The connector set 1b according to the second modified example differs from the connector set 1 according to the first embodiment in that the first connector 10b does not have the first connection terminals 13l3, 13l4, 13r4 and the second connection terminals 14l4, 14l5, 14r3 to 14r5, the second connector 110b does not have the fourth connection terminals 113l3, 113l4, 113r4 and the third connection terminals 114l4, 114l5, 114r3 to 114r5, and the first connection terminal 13r2 and the fourth connection terminal 113r2 are ground terminals connected to ground potential.

[0088] In this modification, the first connection terminals are not necessarily located between the second connection terminals adjacent to each other in the front-rear direction. More specifically, the first connection terminals are not located between the second connection terminals 14l1 and 14l2 and between the second connection terminals 14l2 and 14l3.

[0089] The connector set 1b described above also achieves the same effects as the connector set 1. Furthermore, according to connector set 1b, by positioning multiple ground terminals (second connection terminals 14l1-14l3) between the first connection terminals 13l1 and 13l2 in the front-to-rear direction, the distance between the first connection terminals 13l1 and 13l2 can be increased, thereby improving isolation between the first connection terminals 13l1 and 13l2. Similarly, by positioning multiple ground terminals (second connection terminals 14r1, 13r2, and 14r2) between the first connection terminals 13r1 and 13r3, the distance between the first connection terminals 13r1 and 13r3 can be increased, thereby improving isolation between the first connection terminals 13r1 and 13r3.

[0090] [Third Modification] A connector set 1c according to a third modification of the present invention will be described below with reference to the drawings. Fig. 21 is a plan view schematically illustrating the arrangement of the terminals of the first connector 10c when the first connector 10c and the second connector 110c are not connected. In Fig. 21, "G" denotes a ground terminal connected to ground potential, and "S" denotes a signal terminal through which high-frequency signals are input and output. Regarding the connector set 1c according to the third modification, only the differences from the connector set 1 according to the first embodiment will be described, and the rest will be omitted.

[0091] The connector set 1c according to the third modified example differs from the connector set 1 according to the first embodiment in that the first connector 10c does not have the second connection terminals 14l2 to 14l5, 14r2 to 14r5, and the second connector 110c does not have the third connection terminals 114l2 to 114l5, 114r2 to 114r5.

[0092] In this modification, the pair of first connection terminals 13l1 and 13l2, the pair of first connection terminals 13l3 and 13l4, the pair of first connection terminals 13r1 and 13r2, and the pair of first connection terminals 13r3 and 13r4 transmit differential signals. Furthermore, the first connection terminals belonging to the same pair have the same shape.

[0093] In this modification, the second connection terminals are not adjacent to each other in the front-rear direction. Furthermore, a second connection terminal is not necessarily located between adjacent first connection terminals in the front-rear direction. More specifically, a second connection terminal is not located between first connection terminals 13l1 and 13l2, between first connection terminals 13l3 and 13l4, between first connection terminals 13r1 and 13r2, or between first connection terminals 13r3 and 13r4. When two pairs of first connection terminals transmit differential signals, the first connection terminals in the same pair have the same shape, and no second connection terminal is located between the first connection terminals in the same pair. This makes both first connection terminals in the same pair susceptible to the influence of external noise, and the differential signals transmitted by the pair of first connection terminals are less susceptible to the influence of external noise.

[0094] The connector set 1c as described above also has the same effects as the connector set 1.

[0095] [Fourth Modification] A connector set 1d according to a fourth modification of the present invention will be described below with reference to the drawings. Fig. 22 is a plan view schematically illustrating the arrangement of the terminals of the first connector 10d when the first connector 10d and the second connector 110d are not connected. In Fig. 22, "G" denotes a ground terminal connected to ground potential, "S" denotes a signal terminal for inputting and outputting high-frequency signals, and "P" denotes a power terminal connected to DC potential. Regarding the connector set 1d according to the fourth modification, only the differences from the connector set 1 according to the first embodiment will be described, and the rest will be omitted.

[0096] The connector set 1d according to the fourth modified example differs from the connector set 1 according to the first embodiment in that the first connector 10d does not have the first connection terminals 13l4, 13r3, 13r4 and the second connection terminals 14l3 to 14l5, 14r4, 14r5, the second connector 110d does not have the fourth connection terminals 113l4, 113r3, 113r4 and the third connection terminals 114l3 to 114l5, 114r4, 114r5, and the first connection terminal 13l2, the second connection terminal 14r3, the fourth connection terminal 113l2 and the third connection terminal 114r3 are power supply terminals connected to a DC potential.

[0097] In this modification, the first connection terminals are not necessarily located between the second connection terminals adjacent to each other in the front-rear direction. More specifically, the first connection terminals are not located between the second connection terminals 14r1 and 14r2 and between the second connection terminals 14r2 and 14r3.

[0098] The connector set 1d described above also achieves the same effects as the connector set 1. Furthermore, with the connector set 1d, by positioning a plurality of ground terminals (second connection terminals 14l1, 14l2) and a power terminal (first connection terminal 13l2) between the first connection terminals 13l1, 13l3 in the front-to-rear direction, the distance between the first connection terminals 13l1, 13l3 can be increased, thereby improving isolation between the first connection terminals 13l1, 13l3. Similarly, by positioning a plurality of ground terminals (second connection terminals 14r1, 14r3) and a power terminal (second connection terminal 14r2) between the first connection terminals 13r1, 13r2, the distance between the first connection terminals 13r1, 13r2 can be increased, thereby improving isolation between the first connection terminals 13r1, 13r2.

[0099] [Fifth Modification] A connector set 1e according to a fifth modification of the present invention will be described below with reference to the drawings. Figure 23 is a partially enlarged perspective view of the first connector 10e when the first connector 10e and the second connector 110e are not connected. Note that, with regard to the connector set 1e according to the fifth modification, only the differences from the connector set 1 according to the first embodiment will be described, and the rest will be omitted.

[0100] The connector set 1e according to the fifth modified example differs from the connector set 1 according to the first embodiment in that the first protrusions 11c1 to 11c12 and the second protrusions 11d1 to 11d10 of the first connector 10e are not connected to each other.

[0101] In other words, the first protrusions 11c1 to 11c12 and the second protrusions 11d1 to 11d10 are separated from each other. The first protrusions 11c1 to 11c12 and the second protrusions 11d1 to 11d10 are arranged with a gap between them. The first protrusions 11c1 to 11c12 and the second protrusions 11d1 to 11d10 are not in contact with each other.

[0102] Specifically, as shown in FIG. 23 , the second protrusion 11d2 is not connected to the adjacent first protrusions 11c1, 11c2, 11c5, and 11c6. That is, the second protrusion 11d2 is separated from the first protrusions 11c1, 11c2, 11c5, and 11c6. As a result, the second protrusion 11d2 and the first protrusions 11c1, 11c2, 11c5, and 11c6 are spaced apart. Furthermore, the second protrusion 11d2 and the first protrusions 11c1, 11c2, 11c5, and 11c6 are not in contact with each other. For example, the shortest distance A between the second protrusion 11d2 and the first protrusion 11c5 is greater than 0.

[0103] The connector set 1e described above also achieves the same effects as the connector set 1. Furthermore, with connector set 1e, the first protrusions 11c1-11c12 and the second protrusions 11d1-11d10 are not connected to one another, which prevents stress received by any one of the first connection terminals 13l1-13l4, 13r1-13r4, and the second connection terminals 14l1-14l5, 14r1-14r5 from being transmitted to another of the first connection terminals 13l1-13l4, 13r1-13r4, and the second connection terminals 14l1-14l5, 14r1-14r5. Furthermore, image detection makes it easier to detect non-defective products.

[0104] [Sixth Modification] A connector set 1f according to a sixth modification of the present invention will be described below with reference to the drawings. Figure 24 is a cross-sectional view of the first connection terminal 13l1 and the third connection terminal 114l1 when the first connector 10f and the second connector 110f are not connected. Regarding the connector set 1f according to the sixth modification, only the differences from the connector set 1a according to the first modification will be described, and the rest will be omitted.

[0105] As shown in FIG. 24, the connector set 1f according to the sixth modified example differs from the connector set 1a according to the first modified example in that the third connection terminal 114l1 does not have a shape that is vertically symmetrical to the first connection terminal 13l1.

[0106] The connector set 1f as described above also has the same effects as the connector set 1.

[0107] Other Embodiments The connector set according to the present invention is not limited to the connector sets 1, 1a to 1f, and can be modified within the scope of the gist thereof. In addition, the structures of the connector sets 1, 1a to 1f may be combined in any manner.

[0108] The present invention has the following configuration.

[0109] (1) A connector set including a first connector and a second connector connected to the first connector in a first direction, wherein the first connector includes: a first body member; a plurality of first connection terminals supported by the first body member and aligned on a first straight line parallel to a second direction; and a plurality of second connection terminals supported by the first body member, wherein the first connection terminals have a first wide portion supported by the first body member, the first wide portion being wider in the second direction than other portions of the first connection terminals; the second connector includes: a second body member; a plurality of third connection terminals supported by the second body member; and a plurality of fourth connection terminals supported by the second body member, wherein the third connection terminals have a second wide portion supported by the second body member, the second wide portion being wider in the second direction than other portions of the third connection terminals; and when the first connector and the second connector are connected, the plurality of first connection terminals are respectively connected to the plurality of fourth connection terminals, a connector set, wherein the plurality of second connection terminals are respectively connected to the plurality of third connection terminals, the third connection terminal is located adjacent to the first connection terminal on the first straight line, and the position of the first wide portion and the position of the second wide portion are offset in the first direction.

[0110] (2) The connector set described in (1), wherein the first body member has a plurality of first protrusions, each of the plurality of first protrusions supports one of the plurality of first connection terminals or the plurality of second connection terminals, and the plurality of first protrusions are not connected to each other.

[0111] (3) The connector set described in (2), wherein the first connector includes a first contact terminal connected to a ground potential or a power supply potential, the first body member has a frame portion having a ring shape surrounding the plurality of first connection terminals, the plurality of second connection terminals, and the plurality of first protrusions when viewed in the first direction, the first contact terminal is supported by the frame portion at a support portion, and the support portion overlaps with at least one of the plurality of first protrusions supporting the first connection terminal when viewed in a third direction perpendicular to the second direction.

[0112] (4) The connector set according to any one of (1) to (3), wherein the second main body member has a plurality of second protrusions, each of the plurality of second protrusions supports one of the plurality of third connection terminals and the plurality of fourth connection terminals, and the plurality of second protrusions are not connected to each other.

[0113] (5) The connector set according to any one of (1) to (4), wherein the plurality of first connection terminals and the plurality of fourth connection terminals are signal terminals, and the plurality of second connection terminals and the plurality of third connection terminals are ground terminals or power supply terminals.

[0114] (6) The connector set according to any one of (1) to (5), wherein the first connection terminal is mirror-symmetric to the adjacent third connection terminal on the first straight line with respect to a virtual mirror plane perpendicular to the first direction.

[0115] (7) The connector set according to any one of (1) to (6), wherein the plurality of second connection terminals are arranged on a second straight line parallel to the second direction, the fourth connection terminal is located adjacent to the second connection terminal on the second straight line, and the second connection terminal is mirror-symmetric to the adjacent fourth connection terminal on the second straight line with respect to a virtual mirror plane perpendicular to the first direction.

[0116] (8) The connector set according to any one of (1) to (7), wherein the first connection terminal has a first curved portion that is curved, and the fourth connection terminal is inserted into the first curved portion; and the third connection terminal has a second curved portion that is curved, and the second connection terminal is inserted into the second curved portion.

[0117] (9) The connector set according to any one of (1) to (8), wherein the first connection terminal has a first mounting portion fixed to an external electrode of a first circuit board, and the first wide portion is connected to the first mounting portion.

[0118] (10) The connector set according to any one of (1) to (9), wherein the third connection terminal has a second mounting portion fixed to an external electrode of a second circuit board, and the second wide portion is connected to the second mounting portion.

[0119] (11) The connector set according to any one of (1) to (10), wherein the first wide portion is exposed from the first main body member.

[0120] (12) The connector set according to any one of (1) to (11), wherein the second wide portion is exposed from the second main body member.

[0121] 1, 1a to 1f: Connector set 10, 10a to 10f: First connector 11: First main body member 11a, 111a: Frame portion 11b, 111b: Bottom portion 11c1 to 11c12: First protrusion portion 11d1 to 11d10: Second protrusion portion 12: First contact terminal 13l1, 13r1: First connection terminal 14l1, 14r1: Second connection terminal 110, 110a to 110f: Second connector 111: Second main body member 111c1 to 111c15: Third protrusion portion 111d1 to 111d8: Fourth protrusion portion 112: Second contact terminal 113l1, 113r1: Fourth connection terminal 114l1, 114r1: Third connection terminal CP1: First contact portion CP2: Second contact portion CPP32: Convex portion FE1: Fourth end FE2: Eighth end IS21: Second inner surface IS32: First inner surface L1a, L1b: First straight line L2a, L2b: Second straight line L3a, L3b: Third straight line L4a, L4b: Fourth straight line MP1: First mounting portion MP2: Second mounting portion MS: Virtual mirror plane OS21: Second outer surface OS32: First outer surface P21: Third curved portion P31: First curved portion P32: Second curved portion P41: Fourth curved portion REP21: Recess SP: Support portion WP: Wide portion

Claims

1. A connector set comprising a first connector and a second connector connected to the first connector in a first direction, The first connector is, First main body member, Supported by the first main body member, a plurality of first connection terminals are arranged on a first straight line parallel to the second direction, Multiple second connection terminals supported by the first main body member, It includes, The shape of the second connector differs from that of the first connector. The first connection terminal has a first wide portion supported by the first main body member, the first wide portion having a width in the second direction that is wider than the other portion of the first connection terminal. The second connector is, The second main body member, Multiple third connection terminals supported by the second main body member, Multiple fourth connection terminals supported by the second main body member, It includes, The third connection terminal has a second wide portion supported by the second main body member, the second wide portion having a width in the second direction that is wider than the other portion of the third connection terminal. When the first connector and the second connector are connected, Each of the aforementioned plurality of first connection terminals is connected to the aforementioned plurality of fourth connection terminals. Each of the aforementioned plurality of second connection terminals is connected to the aforementioned plurality of third connection terminals. On the first straight line, the third connection terminal is located next to the first connection terminal. The position of the first wide portion and the position of the second wide portion are offset in the first direction. Connector set.

2. The shape of the fourth connector is different from the shape of the third connector. The connector set according to claim 1.

3. The first main body member is, Multiple first protrusions, Viewed in the first direction, the frame portion has an annular shape surrounding the plurality of first connection terminals, the plurality of second connection terminals, and the plurality of first protrusions, Viewed in the first direction, the bottom portion covers a part of the area enclosed by the frame portion, It has, Each of the plurality of first protrusions supports either of the plurality of first connection terminals or the plurality of second connection terminals. The aforementioned multiple first protrusions are not connected to each other and are spaced apart from each other, and are provided on the bottom. The connector set according to claim 1 or claim 2.

4. The first connector includes a first contact terminal connected to ground potential or power potential. The first contact terminal is supported in the support portion by the frame portion, The support portion, when viewed in a third direction perpendicular to the second direction, overlaps with at least one of the plurality of first protrusions that support the first connection terminal. The connector set according to claim 3.

5. The second main body member is, Multiple second protrusions, Viewed in the first direction, the frame portion has an annular shape surrounding the plurality of third connection terminals, the plurality of fourth connection terminals, and the plurality of second protrusions, Viewed in the first direction, the bottom portion covers a part of the area enclosed by the frame portion, It has, Each of the plurality of second protrusions supports one of the plurality of third connection terminals and the plurality of fourth connection terminals. The aforementioned multiple second protrusions are not connected to each other and are spaced apart from each other, and are provided on the bottom. The connector set according to claim 1 or claim 2.

6. The plurality of first connection terminals and the plurality of fourth connection terminals are each signal terminals. The plurality of second connection terminals and the plurality of third connection terminals are, respectively, ground terminals or power terminals. The connector set according to claim 1 or claim 2.

7. The first connection terminal is mirror-symmetric with respect to a virtual mirror plane perpendicular to the first direction, on the first straight line, the adjacent third connection terminal. The connector set according to claim 1 or claim 2.

8. The plurality of second connection terminals are arranged on a second straight line parallel to the second direction, On the second straight line, the fourth connection terminal is located next to the second connection terminal. The second connection terminal is mirror-symmetric with respect to the second straight line with respect to a virtual mirror plane perpendicular to the first direction, The connector set according to claim 1 or claim 2.

9. The first connection terminal has a curved first curved portion, and the fourth connection terminal is inserted into the first curved portion. The third connector has a curved second curved portion, and the second connector is inserted into the second curved portion. The connector set according to claim 1 or claim 2.

10. The first connection terminal has a first mounting portion that is fixed to the external electrode of the first circuit board, The first wide portion is connected to the first mounting portion. The connector set according to claim 1 or claim 2.

11. The third connection terminal has a second mounting portion that is fixed to the external electrode of the second circuit board. The second wide portion is connected to the second mounting portion. The connector set according to claim 1 or claim 2.

12. The first wide portion is exposed from the first main body member. The connector set according to claim 1 or claim 2.

13. The second wide portion is exposed from the second main body member. The connector set according to claim 1 or claim 2.

14. A connector set comprising a first connector and a second connector connected to the first connector in a first direction, The first connector is, First main body member, Supported by the first main body member, a plurality of first connection terminals are arranged on a first straight line parallel to the second direction, Multiple second connection terminals supported by the first main body member, A first contact terminal connected to ground potential or power supply potential, It includes, The first connection terminal has a first wide portion supported by the first main body member, the first wide portion having a width in the second direction that is wider than the other portion of the first connection terminal. The second connector is, The second main body member, Multiple third connection terminals supported by the second main body member, Multiple fourth connection terminals supported by the second main body member, It includes, The third connection terminal has a second wide portion supported by the second main body member, the second wide portion having a width in the second direction that is wider than the other portion of the third connection terminal. When the first connector and the second connector are connected, Each of the aforementioned plurality of first connection terminals is connected to the aforementioned plurality of fourth connection terminals. Each of the aforementioned plurality of second connection terminals is connected to the aforementioned plurality of third connection terminals. On the first straight line, the third connection terminal is located next to the first connection terminal. The position of the first wide portion and the position of the second wide portion are offset in the first direction. The first main body member is, Multiple first protrusions, Viewed in the first direction, the frame portion has an annular shape surrounding the plurality of first connection terminals, the plurality of second connection terminals, and the plurality of first protrusions, It has, Each of the plurality of first protrusions supports either of the plurality of first connection terminals or the plurality of second connection terminals. The aforementioned plurality of first protrusions are not connected to each other. The first contact terminal is supported in the support portion by the frame portion, The support portion, when viewed in a third direction perpendicular to the second direction, overlaps with at least one of the plurality of first protrusions that support the first connection terminal. Connector set.

15. A connector set comprising a first connector and a second connector connected to the first connector in a first direction, The first connector is, First main body member, Supported by the first main body member, a plurality of first connection terminals are arranged on a first straight line parallel to the second direction, Multiple second connection terminals supported by the first main body member, It includes, The first connection terminal has a first wide portion supported by the first main body member, the first wide portion having a width in the second direction that is wider than the other portion of the first connection terminal. The second connector is, The second main body member, Multiple third connection terminals supported by the second main body member, Multiple fourth connection terminals supported by the second main body member, It includes, The third connection terminal has a second wide portion supported by the second main body member, the second wide portion having a width in the second direction that is wider than the other portion of the third connection terminal. When the first connector and the second connector are connected, Each of the aforementioned plurality of first connection terminals is connected to the aforementioned plurality of fourth connection terminals. Each of the aforementioned plurality of second connection terminals is connected to the aforementioned plurality of third connection terminals. On the first straight line, the third connection terminal is located next to the first connection terminal. The position of the first wide portion and the position of the second wide portion are offset in the first direction. The first connection terminal is mirror-symmetric with respect to a virtual mirror plane perpendicular to the first direction, on the first straight line, the adjacent third connection terminal. Connector set.

16. A connector set comprising a first connector and a second connector connected to the first connector in a first direction, The first connector is, First main body member, Supported by the first main body member, a plurality of first connection terminals are arranged on a first straight line parallel to the second direction, Multiple second connection terminals supported by the first main body member, It includes, The first connection terminal has a first wide portion supported by the first main body member, the first wide portion having a width in the second direction that is wider than the other portion of the first connection terminal. The second connector is, The second main body member, Multiple third connection terminals supported by the second main body member, Multiple fourth connection terminals supported by the second main body member, It includes, The third connection terminal has a second wide portion supported by the second main body member, the second wide portion having a width in the second direction that is wider than the other portion of the third connection terminal. When the first connector and the second connector are connected, Each of the aforementioned plurality of first connection terminals is connected to the aforementioned plurality of fourth connection terminals. Each of the aforementioned plurality of second connection terminals is connected to the aforementioned plurality of third connection terminals. On the first straight line, the third connection terminal is located next to the first connection terminal. The position of the first wide portion and the position of the second wide portion are offset in the first direction. The plurality of second connection terminals are arranged on a second straight line parallel to the second direction, On the second straight line, the fourth connection terminal is located next to the second connection terminal. The second connection terminal is mirror-symmetric with respect to the second straight line with respect to a virtual mirror plane perpendicular to the first direction, Connector set.