connector

Abstract

To improve a degree of freedom in displacement of a movable housing, surely maintain a fitted state, enable downsizing, simplify a structure, reduce the number of components, facilitate manufacture, reduce cost and improve reliability.SOLUTION: A stationary housing includes a long wall part extending in a length direction of a connector and a short wall part extending in a width direction of the connector and connected to an end of the long wall part. A movable housing includes a long wall part extending in a length direction of a connector and a short wall part extending in a width direction of the connector and connected to an end of the long wall part. A power supply terminal includes a stationary-side held part held by the short wall part of the stationary housing, a movable-side held part held by the movable housing, and a bend part connecting the stationary-side held part and the movable-side held part. The movable-side held part includes a first held portion held by the short wall part and a second held portion held by the long wall part.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present disclosure relates to connectors. [Background technology]

[0002] Conventionally, board-to-board connectors have been used to electrically connect a pair of circuit boards. However, the relative positions of the circuit boards that have been set in advance may become misaligned. Therefore, in order to absorb the misalignment of the circuit boards, it has been proposed to make one or both of the connectors have a floating structure (for example, see Patent Document 1).

[0003] FIG. 37 is a perspective view showing a conventional board-to-board connector before mating.

[0004] In the figure, 810 is a floating connector mounted on the surface of a first circuit board 891, and includes a fixed housing 811 fixed to the surface of the first circuit board 891, and a movable housing 831 connected so as to be movable relative to the fixed housing 811. The floating connector 810 also includes a plurality of signal terminals 861 and a power terminal 851.

[0005] On the other hand, the mating connector 910 includes a mating housing 911 fixed to the surface of a second circuit board 991 , and a mating signal terminal 961 and a mating power supply terminal 951 attached to the mating housing 911 .

[0006] In the floating connector 810, each signal terminal 861 has a contact portion 865 that contacts a mating signal terminal 961 of the mating connector 910, a board connection portion 863 that is connected and fixed to the surface of the first circuit board 891, and an elastic deformation portion (not shown) formed between the contact portion 865 and the board connection portion 863. Each power supply terminal 851 also has a contact portion 855 that contacts a mating power supply terminal 951 of the mating connector 910, a board connection portion 853 that is connected and fixed to the surface of the first circuit board 891, and an elastic deformation portion (not shown) formed between the contact portion 855 and the board connection portion 853.

[0007] Since the contact portion 865 of the signal terminal 861 and the contact portion 855 of the power terminal 851 are attached to the movable housing 831, and the board connection portion 863 of the signal terminal 861 and the board connection portion 853 of the power terminal 851 are attached to the movable housing 831 and connected and fixed to the surface of the first circuit board 891, the elastic deformation portion of the signal terminal 861 and the elastic deformation portion of the power terminal 851 are deformed, thereby allowing the movable housing 831 to move relative to the fixed housing 811 fixed to the surface of the first circuit board 891. The fixed housing 811 is also fixed to the surface of the first circuit board 891 by a fixing bracket 875.

[0008] When the floating connector 810 and the mating connector 910 are fitted together, the movable housing 831 and the mating housing 911 are fitted together, the contact portion 865 of the signal terminal 861 contacts and is conductive with the mating signal terminal 961, and the contact portion 855 of the power terminal 851 contacts and is conductive with the mating power terminal 951. This electrically connects the first circuit board 891 and the second circuit board 991. Furthermore, even if a positional deviation occurs between the floating connector 810 and the mating connector 910, it is reliably absorbed. [Prior art documents] [Patent documents]

[0009] [Patent Document 1] JP 2017-079214 A Summary of the Invention [Problem to be solved by the invention]

[0010] However, in the conventional connector, the elastic deformation portions of the signal terminals 861 and the power terminals 851 have similar shapes and are prone to elastic deformation in the same direction, so that misalignment occurring between the floating connector 810 and the mating connector 910 may not be properly absorbed depending on the direction. Also, since no reinforcing member made of metal is attached to the mating end of the movable housing 831 and the mating end of the mating housing 911, the mating ends of the movable housing 831 and the mating housing 911 may be damaged or broken during the mating operation.

[0011] In order to prevent such a situation from occurring, it is conceivable to increase the degree of freedom of deformation by enlarging the size of the elastically deforming portions of signal terminals 861 and power terminals 851 or widening their pitch, or to make them less susceptible to breakage by enlarging the mating ends of movable housing 831 or mating housing 911 or attaching separate reinforcing metal fittings. However, in recent years, connectors have become smaller in size in line with the miniaturization of electronic components and electronic devices, and the dimensions and pitch of each part of the terminals have had to become extremely fine, and similarly, it is difficult to enlarge the dimensions of each part of the housing or attach separate reinforcing metal fittings.

[0012] The object of this invention is to solve the above-mentioned conventional problems and provide a connector which has a high degree of freedom of movement of the movable housing, can reliably maintain the mated state, can be made compact, has a simple structure, has a small number of parts, is easy to manufacture, is low cost, and is highly reliable. [Means for solving the problem]

[0013] To this end, the connector comprises a fixed housing, a movable housing movable relative to the fixed housing, and a power terminal held by the fixed housing and the movable housing, wherein the fixed housing includes a long wall portion extending in the longitudinal direction of the connector and a short wall portion extending in the width direction of the connector and connected to an end of the long wall portion, the movable housing includes a long wall portion extending in the longitudinal direction of the connector and a short wall portion extending in the width direction of the connector and connected to an end of the long wall portion, the power terminal includes a fixed side held portion held by the short wall portion of the fixed housing, a movable side held portion held by the movable housing, and a bent portion connecting the fixed side held portion and the movable side held portion, and the movable side held portion includes a first held portion at least a portion of which extends along the short wall portion and a second held portion at least a portion of which extends along the long wall portion.

[0014] In another connector, the first held portion further includes a first upper end covering portion that covers an upper end of the short wall portion, and the second held portion includes a second upper end covering portion that covers an upper end of the long wall portion.

[0015] In still another connector, a contact portion that is disposed inside the long wall portion and that comes into contact with a counterpart power supply terminal is connected to the second held portion.

[0016] In still another connector, the contact portion extends vertically along the inner surface of the long wall portion.

[0017] In yet another connector, the contact portion further includes a contact arm portion extending in the vertical direction at an angle relative to the inner surface of the long wall portion, and a contact protrusion connected to the upper end of the contact arm portion and bulging outward in the width direction of the connector.

[0018] In still another connector, the second held portion of the movable-side held portion further includes a locked portion that is locked to the movable housing.

[0019] In still another connector, the lower end of the locked portion is inserted from below into a locking recess that is open on the downward surface of the movable housing, and is locked therein.

[0020] In yet another connector, the bent portion is bent into approximately an S shape when viewed from the width direction of the connector, with one end connected to the upper end of the fixed side held portion and the other end connected to the lower end of the first held portion of the movable side held portion.

[0021] In yet another connector, the power terminal further includes a board connection portion connected to the fixed side held portion, and the board connection portion includes a relay portion extending from the fixed side held portion toward the longitudinal center of the connector, and a main body portion connected to the relay portion and extending outward in the width direction of the connector.

[0022] In still another connector, the power terminals are arranged in pairs at both ends in the longitudinal direction of the connector, and are arranged side by side in the width direction of the connector at each of the longitudinal ends. Effect of the Invention

[0023] According to the present disclosure, the connector has a high degree of freedom of movement of the movable housing, and can reliably maintain the mated state. In addition, the connector can be made compact, has a simple structure, has a small number of parts, is easy to manufacture, reduces costs, and has improved reliability. [Brief description of the drawings]

[0024] [Figure 1] 1A and 1B are perspective views showing a first connector and a second connector according to a first embodiment, in which FIG. 1A shows a mated state and FIG. 1B shows a state before mating. [Diagram 2] FIG. 2 is a perspective view showing a first connector in the first embodiment. [Diagram 3] 1A to 1D are four views of the first connector according to the first embodiment, where (a) is a top view, (b) is a side view, (c) is a bottom view, and (d) is a front view. [Figure 4] FIG. 2 is an exploded view of the first connector in the first embodiment. [Diagram 5] 1A and 1B are perspective views showing terminals of a first connector according to a first embodiment, in which (a) shows a signal terminal and (b) shows a power terminal. [Figure 6] 1A and 1B are perspective views showing the relationship between a movable housing and signal terminals of a first connector according to a first embodiment, as viewed from diagonally below, where FIG. 1A is an overall view, and FIG. [Figure 7] 2 is a perspective view showing a set of signal terminals of the first connector according to the first embodiment. FIG. [Figure 8] 1A and 1B are diagrams showing the mounting portion of the power terminal of the first connector to the movable housing in the first embodiment, in which (a) is an oblique view of the first connector seen diagonally from above, (b) is an enlarged view of part B in (a), (c) is a top view of the first connector, and (d) is an enlarged view of part C in (c). [Figure 9] 3A and 3B are diagrams showing the mounting portions of the signal terminals of the first connector to the fixed housing and the movable housing in the first embodiment, where (a) is a cross-sectional view taken along the line DD in FIG. 3A, and (b) is an enlarged view of part E in (a). [Figure 10] 1A and 1B are diagrams showing a terminal mounting portion of a fixed housing of a first connector in a first embodiment, in which (a) is a perspective view of a fixed terminal of the first connector as viewed diagonally from below, and (b) is an enlarged view of part F in (a). [Figure 11] FIG. 2 is a perspective view showing a second connector in the first embodiment. [Figure 12] 4A to 4D are views of the second connector according to the first embodiment, where (a) is a top view, (b) is a side view, (c) is a bottom view, and (d) is a front view. [Figure 13] FIG. 4 is an exploded view of the second connector in the first embodiment. [Figure 14] 3A and 3B are perspective views showing terminals of a second connector according to the first embodiment, where FIG. 3A shows a signal terminal and FIG. 3B shows a power terminal. [Figure 15]12A is a cross-sectional view taken along the line GG in FIG. 12A; FIG. 12B is a perspective view; and FIG. 12C is an enlarged view of portion H in FIG. 12B. [Figure 16] 1A is a three-view diagram showing the first connector and the second connector in the mated state in the first embodiment, in which (a) is a plan view seen from the second connector side, (b) is a cross-sectional view taken along the line II in (a), and (c) is a cross-sectional view taken along the line JJ in (a). [Figure 17] 16(a) is a vertical cross-sectional view showing a state in which the first connector and the second connector in the first embodiment are mated, taken along the line KK in FIG. 16(a). FIG. [Figure 18] FIG. 11 is an exploded view of the first connector in the second embodiment. [Figure 19] 11A and 11B are oblique views seen from diagonally below showing the relationship between the movable housing and the signal terminals of the first connector in the second embodiment, where (a) is an oblique view including a cross section seen from diagonally below the first connector, and (b) is an oblique view including a side cross section seen from diagonally below the first connector. [Figure 20] 13A and 13B are diagrams showing the mounting portion of the power terminal of the first connector to the movable housing in the second embodiment, in which (a) is a top view of the first connector, (b) is a cross-sectional view taken along the line LL in (a), and (c) is a cross-sectional view taken along the line MM in (a). [Figure 21] FIG. 11 is an exploded view of the second connector in the second embodiment. [Figure 22] 11A and 11B are three-view diagrams showing the first and second connectors in the mated state in the second embodiment, in which (a) is a plan view seen from the second connector side, (b) is a cross-sectional view taken along the line NN in (a), and (c) is a cross-sectional view taken along the line OO in (a). [Diagram 23] 22(a) is a vertical cross-sectional view showing a state in which the first connector and the second connector in the second embodiment are fitted together, and is a cross-sectional view taken along the line PP in FIG. 22(a). [Figure 24] 13A and 13B are perspective views showing a first connector and a second connector according to a third embodiment, in which (a) shows a mated state and (b) shows a state before mating. [Diagram 25] FIG. 13 is an exploded view of the first connector in the third embodiment. [Figure 26] 13A and 13B are oblique views seen from diagonally below showing the relationship between the movable housing and the signal terminals of the first connector in the third embodiment, where (a) is an oblique view including a cross section seen from diagonally below the first connector, and (b) is an oblique view including a side cross section seen from diagonally below the first connector. [Figure 27] 13A and 13B are diagrams showing the mounting portion of the power terminal of the first connector to the movable housing in the third embodiment, in which (a) is a top view of the first connector, (b) is a cross-sectional view taken along the QQ arrow in (a), and (c) is a cross-sectional view taken along the RR arrow in (a). [Figure 28] FIG. 13 is an exploded view of the second connector in the third embodiment. [Figure 29] 13A and 13B are three-view diagrams showing the first and second connectors in the mated state in the third embodiment, in which (a) is a plan view seen from the second connector side, (b) is a cross-sectional view taken along the line SS in (a), and (c) is a cross-sectional view taken along the line TT in (a). [Diagram 30] 29(a) is a longitudinal cross-sectional view showing a state in which the first connector and the second connector according to the third embodiment are mated, and is a cross-sectional view taken along the line UU in FIG. 29(a). [Diagram 31] FIG. 13 is an exploded view of the first connector in the fourth embodiment. [Diagram 32] 13A and 13B are oblique views seen from diagonally below showing the relationship between the movable housing and the signal terminals of the first connector in the fourth embodiment, where (a) is an oblique view including a cross section seen from diagonally below the first connector, and (b) is an oblique view including a side cross section seen from diagonally below the first connector. [Diagram 33] 13A and 13B are diagrams showing the mounting portion of the power terminal of the first connector to the movable housing in the fourth embodiment, in which (a) is a top view of the first connector, (b) is a cross-sectional view taken along the VV arrow in (a), and (c) is a cross-sectional view taken along the WW arrow in (a). [Diagram 34] FIG. 13 is an exploded view of the second connector in the fourth embodiment. [Diagram 35]13A and 13B are three-view diagrams showing the first and second connectors in the mated state in the fourth embodiment, in which (a) is a plan view seen from the second connector side, (b) is a cross-sectional view taken along the line XX in (a), and (c) is a cross-sectional view taken along the line YY in (a). [Diagram 36] 35(a) is a vertical cross-sectional view showing a state in which the first connector and the second connector in the fourth embodiment are mated, taken along the line ZZ in FIG. 35(a). FIG. [Figure 37] FIG. 1 is a perspective view showing a conventional board-to-board connector before mating; DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0025] Hereinafter, the embodiments will be described in detail with reference to the drawings.

[0026] FIG. 1 is an oblique view showing the first connector and the second connector in the first embodiment, FIG. 2 is an oblique view showing the first connector in the first embodiment, FIG. 3 is a four-sided view of the first connector in the first embodiment, FIG. 4 is an exploded view of the first connector in the first embodiment, FIG. 5 is an oblique view showing the terminals of the first connector in the first embodiment, FIG. 6 is an oblique view seen from diagonally below showing the relationship between the movable housing and the signal terminals of the first connector in the first embodiment, FIG. 7 is an oblique view showing a set of signal terminals of the first connector in the first embodiment, FIG. 8 is a diagram showing the mounting portion of the power terminal to the movable housing of the first connector in the first embodiment, FIG. 9 is a diagram showing the mounting portion of the signal terminal to the fixed housing and the movable housing of the first connector in the first embodiment, and FIG. 10 is a diagram showing the terminal mounting portion of the fixed housing of the first connector in the first embodiment.

[0027] In FIG. 1, (a) is a diagram showing the mated state, and (b) is a diagram showing the state before mating; in FIG. 3, (a) is a top view, (b) is a side view, (c) is a bottom view, and (d) is a front view; in FIG. 5, (a) is a diagram showing the signal terminals, and (b) is a diagram showing the power terminals; in FIG. 6, (a) is a diagram showing the whole, and (b) is a cross-sectional view taken along the line AA in (a); in FIG. 8, (a) is a perspective view of the first connector viewed from diagonally above, (b) is an enlarged view of part B in (a), (c) is a top view of the first connector, and (d) is an enlarged view of part C in (c); in FIG. 9, (a) is a cross-sectional view taken along the line DD in FIG. 3(a), and (b) is an enlarged view of part E in (a); and in FIG. 10, (a) is a perspective view of the fixed terminal of the first connector viewed from diagonally below, and (b) is an enlarged view of part F in (a).

[0028] In the figure, 10 denotes a first connector according to the first embodiment, that is, one of the board-to-board connectors 1 that are connectors in this embodiment. The first connector 10 is a surface-mount receptacle connector that is mounted on the surface of a first board, which is a board not shown in the figures, as a mounting member, and is fitted with a second connector 101 that is a mating connector. The first connector 10 is a so-called floating type connector, and includes a first fixed housing 11 that is a fixed housing that is fixedly attached to the surface of the first board, and a first movable housing 31 that is a movable housing that is movable relative to the first fixed housing 11.

[0029] On the other hand, the second connector 101 is the other side of the board-to-board connector 1, and is a surface-mounted plug connector mounted on the surface of a second board, which is a board (not shown) serving as a mounting member. The second connector 101 is not a so-called floating type connector, but only includes a second housing 111 as a mating housing that is a fixed housing fixedly attached to the surface of the second board, and does not include a movable housing.

[0030] In addition, the first connector 10 and the second connector 101 of the connector pair in this embodiment are preferably used to electrically connect the first board and the second board as substrates, but can also be used to electrically connect other members. The first board and the second board are, for example, printed circuit boards, flexible flat cables (FFC), flexible circuit boards (FPC), etc. used in electronic devices, but may be any type of board.

[0031] In this embodiment, the expressions indicating directions such as up, down, left, right, front, and back used to explain the configuration and operation of each part of the first connector 10 and second connector 101 of the connector pair are relative rather than absolute, and are appropriate when each part of the first connector 10 and second connector 101 are in the position shown in the figure, but if the position changes, they should be interpreted differently in accordance with the change in position.

[0032] The first connector 10 is configured to be symmetrical when viewed from the width direction (Y-axis direction) and also when viewed from the longitudinal direction (X-axis direction) as shown in Fig. 3. The first fixed housing 11 and the first movable housing 31 of the first connector 10 are each integrally formed members made of an insulator (dielectric) such as synthetic resin.

[0033] The first fixed housing 11 is a roughly rectangular cylindrical member having a pair of parallel rectangular flat long wall portions 12a extending in the longitudinal direction of the first connector 10, a pair of parallel rectangular thick plate-like members extending in the width direction of the first connector 10, short wall portions 12b shorter than the long wall portions 12a and connected to longitudinal ends of the long wall portions 12a, and a movable housing accommodating cavity 15 which is a rectangular columnar cavity whose four sides are defined by the long wall portions 12a and the short wall portions 12b and whose upper and lower ends (both ends in the Z-axis direction) are open. The lower surface of the first fixed housing 11 is a mounting surface 11b which faces the surface of the first board. As shown in FIG. 10, a signal terminal mounting portion 13 is formed on the surface facing the movable housing accommodating cavity 15 at the lower end (negative end on the Z axis) of each long wall portion 12a, i.e., the inner surface, and a power terminal mounting portion 14 is formed on the inner surface at the lower end of each short wall portion 12b.

[0034] At the lower end of each long wall portion 12a, a lower end notch 12c is formed at a location adjacent to both longitudinal sides of the signal terminal mounting portion 13. When the first movable housing 31 is accommodated in the movable housing accommodating cavity 15, foot portions 33a extending outward in the width direction (Y axis direction) from the lower ends of a pair of legs 33 located at both ends of the first movable housing 31 in the longitudinal direction (X axis direction) are accommodated in the lower end notch 12c. This appropriately limits the range of movement of the first movable housing 31 in the longitudinal direction and the up-down direction relative to the first fixed housing 11.

[0035] The signal terminal mounting portion 13 is formed with a signal terminal fixed side holding recess 13a for holding a fixed side held portion 62 of a first signal terminal 61, which is a signal terminal among the first terminals included in the first connector 10. Each signal terminal fixed side holding recess 13a is an elongated groove-like recess extending in the vertical direction (Z-axis direction), and the fixed side held portion 62 of each first signal terminal 61 is accommodated and held therein. In addition, both sides of each signal terminal fixed side holding recess 13a are signal terminal fixed side holding walls 13b formed so as to relatively protrude toward the center in the width direction of the first fixed housing 11. In addition, signal terminal fixed side holding grooves 13b1 extending upward from the lower end are formed on both side surfaces of each signal terminal fixed side holding recess 13a, i.e., on the side wall surfaces of the signal terminal fixed side holding walls 13b. In addition, a signal terminal fixed side holding portion lightening portion 13a1, which is an elongated groove-like recess extending in the vertical direction, is formed on the bottom surface of each signal terminal fixed side holding recess 13a. The signal terminal fixed side holding portion lightening portion 13a1 is formed to match the impedance of the first signal terminal 61. Furthermore, at the upper end of the signal terminal mounting portion 13, a visor portion 13c is formed which protrudes toward the center in the width direction of the first fixed housing 11 and defines the upper end of the signal terminal fixed side holding recess 13a. In the example shown in the figure, 30 signal terminal fixed side holding recesses 13a are formed on each of the left and right signal terminal mounting portions 13 of the first fixed housing 11, but the number can be changed according to the number of first signal terminals 61.

[0036] The power terminal mounting portion 14 is formed with a power terminal fixed-side holding recess 14a for holding the fixed-side held portion 52 of the first power terminal 51, which is a power terminal among the first terminals provided in the first connector 10. Each power terminal fixed-side holding recess 14a is a long and narrow groove-shaped recess extending in the vertical direction, and the fixed-side held portion 52 of each first power terminal 51 is accommodated and held therein. Both sides of each power terminal fixed-side holding recess 14a are power terminal fixed-side holding walls 14b formed so as to relatively protrude toward the center in the longitudinal direction of the first fixed housing 11. Then, both side surfaces of each power terminal fixed-side holding recess 14a, i.e., the side wall surfaces of the power terminal fixed-side holding walls 14b, are formed with power terminal fixed-side holding grooves 14b1 extending upward from the lower ends. Furthermore, a visor portion 14c is formed at the upper end of the power terminal mounting portion 14, protruding toward the center in the longitudinal direction of the first fixed housing 11 and defining the upper end of the power terminal fixed side holding recess 14a. Note that in the example shown in the figure, two power terminal fixed side holding recesses 14a are formed on each of the power terminal mounting portions 14 at both ends in the longitudinal direction of the first fixed housing 11, but the number of such recesses can be changed according to the number of first power terminals 51.

[0037] The first movable housing 31 has a generally gutter-shaped main body 32 extending in the longitudinal direction of the first connector 10, and a pair of legs 33 extending downward from the lower ends at both longitudinal ends of the main body 32. As described above, the foot 33a extending outward in the width direction is connected to the lower end of each leg 33. The lower surface of the foot 33a is the mounting surface 11b facing the surface of the first board. The main body 32 has a pair of parallel rectangular thick plate-like long wall portions 32a extending in the longitudinal direction of the first connector 10, a pair of parallel rectangular thick plate-like members extending in the width direction of the first connector 10, which are shorter than the long wall portions 32a and connected to the longitudinal ends of the long wall portions 32a, a mating housing accommodating cavity 35 which is a rectangular columnar cavity whose four sides are defined by the long wall portions 32a and the short wall portions 32b and whose upper end (the end in the positive direction of the Z axis) is open, and a bottom portion 32c which is connected to the lower end of the long wall portions 32a and the lower end of the short wall portions 32b and closes the lower end (the end in the negative direction of the Z axis) of the mating housing accommodating cavity 35. Note that, in the vicinity of both longitudinal ends of the outer surface of the long wall portions 32a, engaging protrusions 32d are formed so as to protrude outward so as to engage with the movable-side held portion 56 of the first power terminal 51.

[0038] As shown in Fig. 1, when the first connector 10 and the second connector 101 are mated, at least a part of the upper part 131 of the second housing 111 of the second connector 101 is accommodated in the mating housing accommodating cavity 35. A thick plate-like central wall 34 extending in the longitudinal direction of the first connector 10 is disposed in the mating housing accommodating cavity 35. As shown in Fig. 6(b), the central wall 34 is a member extending upward from the upper surface of the bottom 32c, and is formed so that its outer circumferential surface is spaced apart from the inner surfaces of the long wall 32a and the inner surfaces of the short wall 32b. As shown in Fig. 9(a), the central wall 34 has a plurality of inverted U-shaped signal terminal contact portion accommodating grooves 34a formed continuously from the upper end to both side surfaces in a cross section. Further, at locations on the bottom 32c corresponding to the signal terminal contact portion accommodating grooves 34a, signal terminal movable-side holding recesses 32e are formed extending in the vertical direction and penetrating the bottom 32c from the lower surface to the upper surface. The left and right portions extending in the vertical direction of each signal terminal contact portion accommodating groove 34a and the signal terminal movable-side holding recesses 32e communicating therewith accommodate the contact portion 65 and the movable-side held portion 66 of the first signal terminal 61, respectively.

[0039] 9(b), the signal terminal movable side holding portion first cutout 32c1 and the signal terminal movable side holding portion second cutout 32c2 are formed as elongated groove-shaped cutouts extending in the vertical direction on the outer side and the inner side of the movable side held portion 66 in the width direction of the first connector 10. The signal terminal movable side holding portion first cutout 32c1 and the signal terminal movable side holding portion second cutout 32c2 are formed to match the impedance of the first signal terminals 61. In the example shown in the figure, 30 signal terminal contact portion accommodating grooves 34a are formed on each side, and 30 signal terminal movable side holding recesses 32e are formed on each side, but the numbers are changed according to the number of the first signal terminals 61.

[0040] 4, four corners 32h of the main body 32 are provided with power terminal movable-side accommodating recesses 32g for accommodating a part of the movable-side held portion 56 of the first power terminal 51. The power terminal movable-side accommodating recess 32g includes a first accommodating recess 32g1 formed near the upper end of the inner side surface 32b1 of the short wall 32b and a second accommodating recess 32g2 formed near the upper end of the inner side surface 32a1 of the long wall 32a. As shown in FIG. 8, the first upper end covering portion 57a ​​and the first upper end covering extension portion 57a1, as well as the second upper end covering portion 57b and the contact portion 55 of the movable-side held portion 56 of the first power terminal 51 are accommodated in the first accommodating recess 32g1 and the second accommodating recess 32g2. In addition, it is preferable that the surfaces of the first upper end cover extension portion 57a1 and the contact portion 55 accommodated in the first accommodating recess 32g1 and the second accommodating recess 32g2 are recessed into the short wall portion 32b and the long wall portion 32a more than the inner side surface 32b1 of the short wall portion 32b and the inner side surface 32a1 of the long wall portion 32a. It is also preferable that the top surfaces (upper end surfaces) of the first upper end cover portion 57a ​​and the second upper end cover portion 57b are located higher than the upper end surface 32b2 of the short wall portion 32b and the upper end surface 32a2 of the long wall portion 32a.

[0041] Each of the first signal terminals 61 is an elastic, elongated rod-like member integrally formed by punching, bending, or the like, a conductive metal plate, and includes a fixed-side held portion 62, a tail portion 63 as a board connection portion connected to the lower end of the fixed-side held portion 62, a bent portion 64 connected to the upper end of the fixed-side held portion 62, a movable-side held portion 66 connected to the upper end of the bent portion 64, and a contact portion 65 connected to the upper end of the movable-side held portion 66, as shown in FIG. 7. In the example shown in the figure, the first signal terminals 61 are arranged in a line of 30 each at a predetermined pitch (for example, about 0.3 to 0.5 mm) so as to form a pair of left and right rows extending in the longitudinal direction of the first connector 10. The number and pitch of the first signal terminals 61 can be changed as appropriate. Also, the first signal terminals 61 in each of the left and right rows are arranged symmetrically when viewed in the longitudinal direction of the first connector 10. Each first signal terminal 61 is formed by bending a plate material extending in a plane parallel to the longitudinal direction of the first connector 10 within a transverse section (YZ plane) of the first connector 10 as shown in FIG.

[0042] The tail portion 63 is bent at about 90 degrees and connected to the fixed-side held portion 62 extending in the vertical direction, and extends outward in the width direction of the first fixed housing 11. The lower surface of the tail portion 63 is substantially flush with the mounting surface 11b, which is the lower surface of the first fixed housing 11, and is connected and fixed to a connection pad formed on the surface of the first board (not shown) by means of soldering or the like. The connection pad is typically connected to a conductive trace for transmitting a signal on the first board. As shown in FIG. 8(c), when viewed from above, at least the tip of the tail portion 63 is located outside the long wall portion 12a of the first fixed housing 11 in the width direction, and is arranged along the long wall portion 12a to form a row extending in the longitudinal direction of the first connector 10. Therefore, in the operation of mounting the first connector 10 on the surface of the first board, an operator can easily visually confirm the connection state of the tail portion 63 to the connection pad formed on the surface of the first board. Furthermore, the tail portion 63 is set to have a short length and a tip end that protrudes outward in the width direction less than the long wall portion 12a of the first fixed housing 11. This makes it possible to prevent an increase in the impedance of the first signal terminal 61.

[0043] As shown in FIG. 6, the bent portion 64 is a portion bent in a meandering manner when viewed from the longitudinal direction (X-axis direction) of the first connector 10, and functions as an elastic deformation portion. The bent portion 64 includes a first straight portion 64a1 and a second straight portion 64a2 as linear portions, a first curved portion 64b1, and a second curved portion 64b2 and a third curved portion 64b3 as curved portions bent by nearly 180 degrees. The first curved portion 64b1 is a portion bent in a substantially S-shape when viewed from the side, with its upper end connected to the lower end of the movable-side held portion 66 and its lower end connected to the first straight portion 64a1. The first straight portion 64a1 is a portion extending in the vertical direction, with both ends connected to the first curved portion 64b1 and the second curved portion 64b2. Furthermore, the second straight portion 64a2 is a portion whose both ends are connected to the second curved portion 64b2 and the third curved portion 64b3, and extends in a direction inclined with respect to the width direction of the first fixed housing 11. Note that, one end of the third curved portion 64b3 is connected to the second straight portion 64a2, and the other end is connected to the upper end of the fixed-side held portion 62.

[0044] In this way, the bent portion 64, one end of which is connected to the fixed-side held portion 62 held in the signal terminal fixed-side holding recess 13a of the first fixed housing 11 and the other end of which is connected to the movable-side held portion 66 held in the signal terminal movable-side holding recess 32e of the first movable housing 31, has a bent shape when viewed from the side and includes a first straight portion 64a1 and a second straight portion 64a2 that are linear and a first curved portion 64b1, a second curved portion 64b2 and a third curved portion 64b3 that are connected thereto, so that the length of the portion that is not restrained by the first fixed housing 11 or the first movable housing 31, i.e., the portion that can be freely elastically deformed, is long. Therefore, the bent portion 64 that exists between the signal terminal fixed-side holding recess 13a and the signal terminal movable-side holding recess 32e can flexibly deform, and the first movable housing 31 can flexibly move relative to the first fixed housing 11. 9, the bent portion 64 is located below the eaves portion 13c that defines the upper end of the signal terminal fixed side holding recess 13a of the first fixed housing 11 and below the bottom portion 32c of the main body portion 32 of the first movable housing 31 accommodated in the movable housing accommodating cavity 15 of the first fixed housing 11, so that the bent portion 64 can be deformed without interfering with the first fixed housing 11 and the first movable housing 31. Therefore, the first movable housing 31 can move in the span direction of the first signal terminal 61, i.e., in the width direction of the first connector 10, and in the pitch direction of the first signal terminal 61, i.e., in the longitudinal direction of the first connector 10, relative to the first fixed housing 11. Furthermore, the first movable housing 31 can also tilt in the span direction of the first signal terminal 61 relative to the first fixed housing 11.

[0045] The contact portion 65 of each first signal terminal 61 is a portion that comes into contact with the second signal terminal 161 of the second connector 101, which is a mating signal terminal, and is a linear rod-like or band-like portion that has a rectangular cross-sectional shape and is approximately constant in dimensions in the width direction (X-axis direction) and thickness direction (Y-axis direction), and functions as a cantilever with a lower end connected to the movable-side held portion 66 as a base end (fixed end) and an upper end as a free end. Specifically, the contact portion 65 includes a contact arm portion 65b whose upper end is located outside the movable-side held portion 66 in the width direction of the first movable housing 31 in the initial state in which the lower end is connected to the movable-side held portion 66 and no external force is applied, a contact protrusion 65a connected to the upper end of the contact arm portion 65b and bulging outward in the width direction of the first movable housing 31, and a contact tip portion 65c which is the upper end of the contact protrusion 65a and faces inward in the width direction of the first movable housing 31. As shown in Figure 9, the contact portion 65 accommodated in the signal terminal contact portion accommodating groove 34a of the central wall portion 34 of the first movable housing 31 is configured so that at least a portion of the contact protrusion 65a protrudes outward from the side surface of the central wall portion 34.

[0046] The movable-side held portion 66 connected to the lower end of the contact portion 65 includes a linear rod-like or band-like main body 66a having a rectangular cross-sectional shape and constant dimensions in the width direction (X-axis direction) and thickness direction (Y-axis direction), and a plurality of protrusions 66b protruding outward in the width direction from both side surfaces in the width direction (X-axis direction) of the main body 66a. The main body 66a is set so that its width is smaller than the width dimension of the signal terminal movable-side holding recess 32e, and the distance between the tips of the left and right protrusions 66b is larger than the width dimension of the signal terminal movable-side holding recess 32e. As a result, the movable-side held portion 66 of the first signal terminal 61 inserted from below into the signal terminal movable-side holding recess 32e is stably held by the left and right protrusions 66b biting into the left and right wall surfaces of the signal terminal movable-side holding recess 32e. Furthermore, since the first curved portion 64b1 of the bent portion 64 is connected to the lower end of the movable side held portion 66 and the first straight portion 64a1 of the bent portion 64 is offset with respect to the movable side held portion 66, the operator can easily insert the movable side held portion 66 into the signal terminal movable side holding recess 32e from below while holding the first straight portion 64a1.

[0047] Furthermore, the fixed-side held portion 62 includes a linear rod-like or band-like main body portion 62a having a rectangular cross-sectional shape and constant dimensions in the width direction (X-axis direction) and thickness direction (Y-axis direction), and a plurality of protrusions 62b protruding outward in the width direction from both side surfaces in the width direction (X-axis direction) of the main body portion 62a. The width dimension of the main body portion 62a is set to be smaller than the width dimension of a portion corresponding to the signal terminal fixed-side holding groove 13b1 in the signal terminal fixed-side holding recess 13a, and the distance between the tips of the left and right protrusions 62b is set to be larger than the width dimension of a portion corresponding to the signal terminal fixed-side holding groove 13b1 in the signal terminal fixed-side holding recess 13a. As a result, the fixed-side held portion 62 of the first signal terminal 61 inserted from below into the signal terminal fixed-side holding recess 13a is stably held by the left and right protrusions 62b biting into the left and right wall surfaces of the signal terminal fixed-side holding groove 13b1.

[0048] The first signal terminal 61 is used to transmit a signal, but in recent years, various signals have become faster, so that it may transmit a high-frequency signal of, for example, about 8 GHz (16 Gbps). When transmitting such a high-frequency signal, it is necessary to match the impedance. Therefore, in this embodiment, a signal terminal fixed side holding portion cutout 13a1, which is a space consisting of air with a lower dielectric constant than the first fixed housing 11, is provided between the fixed side held portion 62 and the bottom surface of the signal terminal fixed side holding recess 13a of the first fixed housing 11, which is a dielectric, making it possible to adjust the dielectric constant of the dielectric surrounding the fixed side held portion 62, and a signal terminal movable side holding portion first cutout 32c1 and a signal terminal movable side holding portion second cutout 32c2, which are spaces consisting of air with a lower dielectric constant than the first movable housing 31, are provided between the movable side held portion 66 and the bottom 32c of the main body portion 32 of the first movable housing 31, which is a dielectric, making it possible to adjust the dielectric constant of the dielectric surrounding the movable side held portion 66, thereby making it possible to adjust the impedance of the first signal terminal 61.

[0049] Furthermore, a pair of first signal terminals 61 adjacent to each other in the width direction (X-axis direction) in each of the left and right columns may be used as a differential pair to transmit a high-frequency signal. In such a case, it is necessary to match the impedance between the first signal terminals 61 adjacent to each other in the width direction. Therefore, in this embodiment, the width dimension of the bent portion 64 is set larger than the fixed-side held portion 62, the movable-side held portion 66, and the contact portion 65, which are between the first signal terminals 61 adjacent to each other in the width direction and have a part of the first fixed housing 11 or the first movable housing 31 interposed therebetween, and the distance between the adjacent bent portions 64 between which the first fixed housing 11 or the first movable housing 31 is not interposed is shortened, thereby making it possible to adjust the dielectric constant of the space surrounding the bent portion 64, and thereby making it possible to adjust the impedance between the first signal terminals 61 adjacent to each other in the width direction.

[0050] Each of the first power terminals 51 is an elastic member integrally formed by punching, bending, or the like, a conductive metal plate, and includes a fixed-side held portion 52, a tail portion 53 as a board connection portion connected to the lower end of the fixed-side held portion 52, a bent portion 54 connected to the upper end of the fixed-side held portion 52, a movable-side held portion 56 connected to the upper end of the bent portion 54, and a contact portion 55 connected to the movable-side held portion 56, as shown in Fig. 5(b). In the example shown in the figure, the first power terminals 51 are arranged in pairs at both ends of the first connector 10 in the longitudinal direction, and two of the first power terminals 51 are arranged side by side in the width direction of the first connector 10 at each end of the first connector 10 in the longitudinal direction. Therefore, the first connector 10 has power lines for carrying positive and negative power currents at both ends of the longitudinal direction. The left and right first power terminals 51 at each of the longitudinal ends of the first connector 10 are configured to be symmetrical when viewed in the longitudinal direction of the first connector 10. Each first power terminal 51 is formed by bending a plate material extending in the width direction and up and down direction of the first connector 10 in a plane parallel to the longitudinal direction of the first connector 10.

[0051] The fixed-side held portion 52 is a portion held by the short wall portion 12b of the first fixed housing 11, and includes a flat body portion 52a extending in the width direction and the up-down direction of the first connector 10, and a plurality of protrusions 52b protruding outward in the width direction from both side surfaces in the width direction (Y-axis direction) of the body portion 52a. The width dimension of the body portion 52a is set to be smaller than the width dimension of a portion of the power terminal fixed-side holding recess 14a that corresponds to the power terminal fixed-side holding groove 14b1, and the distance between the tips of the left and right protrusions 52b is set to be larger than the width dimension of a portion of the power terminal fixed-side holding recess 14a that corresponds to the power terminal fixed-side holding groove 14b1. As a result, the fixed-side held portion 52 of the first power terminal 51 inserted from below into the power terminal fixed-side holding recess 14a is stably held as the left and right protrusions 52b bite into the left and right wall surfaces of the power terminal fixed-side holding groove 14b1.

[0052] The movable-side held portion 56 is a portion held by the short wall portion 32b of the first movable housing 31, and includes a first body portion 56a as a flat-plate-shaped first held portion extending in the width direction and the up-down direction of the first connector 10, and a second body portion 56b as a flat-plate-shaped second held portion that is bent at about 90 degrees and connected to the outer edge of the width direction of the first connector 10 at the first body portion 56a and extends toward the center in the longitudinal direction of the first connector 10. At least a portion of the first body portion 56a extends along the short wall portion 32b, and at least a portion of the second body portion 56b extends along the long wall portion 32a. An engagement opening 58 as a locked portion that is locked to the first movable housing 31 is formed in the second body portion 56b. Specifically, the engagement opening 58 engages with an engagement projection 32d, which is a locking portion formed on the outer surface of the long wall portion 32a of the first movable housing 31, and is locked thereto.

[0053] A first upper end cover portion 57a ​​is connected to the upper end of the first main body portion 56a, and a second upper end cover portion 57b is connected to the upper end of the second main body portion 56b. The first upper end cover portion 57a ​​and the second upper end cover portion 57b are members that cover the upper end of the short wall portion 32b and the upper end of the long wall portion 32a near the corner portion 32h of the first movable housing 31, and are curved by approximately 180 degrees and formed so that the tip (lower end) faces downward. A flat first upper end cover extension portion 57a1 is connected to the lower end of the first upper end cover portion 57a, and a flat contact portion 55 is connected to the lower end of the second upper end cover portion 57b. The contact portion 55 is a rectangular plate material that is long in the vertical direction, and its surface functions as a contact surface that contacts the second power terminal 151 of the second connector 101, which is the counterpart power terminal. The contact surface is parallel to the inner side surface 32a1 of the long wall portion 32a, but is desirably recessed into the long wall portion 32a more than the inner side surface 32a1. Also, it is desirably that the top surfaces (upper end surfaces) of the first upper end covering portion 57a ​​and the second upper end covering portion 57b are located higher than the upper end surface 32b2 of the short wall portion 32b and the upper end surface 32a2 of the long wall portion 32a.

[0054] In this way, the movable-side held portion 56 covers the inner and outer side surfaces and the upper end faces 32a2 and 32b2 of the long wall portion 32a and the short wall portion 32b near both ends of the first connector 10 in the longitudinal direction of the first movable housing 31, thereby effectively protecting the first movable housing 31 and improving robustness. That is, the movable-side held portion 56 can effectively perform not only the function of contacting the second power terminal 151 but also the function of a reinforcing metal fitting that reinforces the vicinity of the corner portion 32h of the first movable housing 31.

[0055] Furthermore, the bent portion 54 is a portion bent in a roughly S-shape so as to meander when viewed from the width direction (Y-axis direction) of the first connector 10, and functions as an elastic deformation portion. The bent portion 54 includes a first straight portion 54a1, a second straight portion 54a2, and a third straight portion 54a3 as linear portions, and also includes a first curved portion 54b1 and a second curved portion 54b2 as curved portions bent nearly 180 degrees. The first straight portion 54a1 is a portion extending in the vertical direction whose upper end is connected to the lower end of the first main body portion 56a of the movable-side held portion 56 and whose lower end is connected to the first curved portion 54b1. The second straight portion 54a2 is a portion extending in the vertical direction whose both ends are connected to the first curved portion 54b1 and the second curved portion 54b2. Furthermore, the third straight portion 54a3 is a portion extending in the vertical direction, with its upper end connected to the second curved portion 54b2 and its lower end connected to the upper end of the main body portion 52a of the fixed-side held portion 52. The bent portion 54 is divided into two in its width direction (Y-axis direction) by a slit 54c extending over its entire length.

[0056] In this way, the bent portion 54, one end of which is connected to the fixed-side held portion 52 held in the power terminal fixed-side holding recess 14a of the first fixed housing 11 and the other end of which is connected to the movable-side held portion 56 held at both longitudinal ends of the main body 32 of the first movable housing 31, has a bent shape when viewed from the side, and includes a first straight portion 54a1, a second straight portion 54a2, and a third straight portion 54a3 that are linear, and a first curved portion 54b1 and a second curved portion 54b2 connected thereto, so that the length of the portion that is not restrained by the first fixed housing 11 or the first movable housing 31, i.e., the portion that can freely deform elastically, is long. Therefore, the bent portion 54 existing between the power terminal fixed-side holding recess 14a and both longitudinal ends of the main body 32 can flexibly deform, and the first movable housing 31 can flexibly move relative to the first fixed housing 11. Moreover, since the bent portion 54 is located below the eaves portion 14c that defines the upper end of the power terminal fixed side holding recess 14a of the first fixed housing 11 and below the main body portion 32 of the first movable housing 31 accommodated in the movable housing accommodating cavity 15 of the first fixed housing 11, the bent portion 54 can be deformed without interfering with the first fixed housing 11 and the first movable housing 31. Also, since the bent portion 54 is divided into two in the width direction by the slit 54c, the first movable housing 31 can move not only in the span direction of the first power terminal 51, i.e., in the longitudinal direction of the first connector 10, but also in the pitch direction of the first power terminal 51, i.e., in the width direction of the first connector 10, relative to the first fixed housing 11. Furthermore, the first movable housing 31 can also tilt in the pitch direction of the first power terminal 51 relative to the first fixed housing 11.

[0057] In addition, in the first signal terminal 61, the bending portion 64 is bent when viewed from the X-axis direction and has flexibility mainly in the Y-axis direction, i.e., the width direction of the first connector 10, whereas in the first power supply terminal 51, the bending portion 54 is bent when viewed from the Y-axis direction and has flexibility mainly in the X-axis direction, i.e., the longitudinal direction of the first connector 10. Therefore, the first signal terminal 61 and the first power supply terminal 51 elastically deform in cooperation with each other, and the first movable housing 31 can be stably displaced in either direction relative to the first fixed housing 11.

[0058] Furthermore, in the first power terminal 51, while the bending portion 54 has flexibility mainly in the longitudinal direction of the first connector 10, the contact surface of the contact portion 55 faces the width direction of the first connector 10, which is different from the deformation direction of the bending portion 54, so that the contact state with the second power terminal 151 of the second connector 101 can be stably maintained.

[0059] Furthermore, the tail portion 53 is bent at about 90 degrees and connected to the main body portion 52a of the fixed-side held portion 52 extending in the vertical direction, and extends toward the center of the first fixed housing 11 in the longitudinal direction. The tail portion 53 has a relay portion 53b connected to the main body portion 52a of the fixed-side held portion 52, and a main body portion 53a connected to the relay portion 53b via a step portion 53c and extending toward the outside in the width direction of the first fixed housing 11. The lower surface of the main body portion 53a is almost flush with the mounting surface 11b, which is the lower surface of the first fixed housing 11, and is connected and fixed to a connection pad formed on the surface of a first substrate (not shown) by means of soldering or the like. The connection pad is connected to a conductive trace for transmitting a power supply current on the first substrate. The relay portion 53b connected to the main body portion 53a via the step portion 53c is located above the main body portion 53a, and its lower surface is separated from the surface of the first substrate. And, since the tail portion 53 extends from the lower end of the main body portion 52a of the fixed-side held portion 52 toward the longitudinal center of the first fixed housing 11, it is located inside, not outside, both longitudinal ends of the first fixed housing 11. Therefore, the mounting surface of the first connector 10 on the surface of the first board does not increase in the longitudinal direction.

[0060] 8(c), when viewed from above, at least the tip of the main body 53a of the tail portion 53 is located outside the long wall portion 12a of the first fixed housing 11 in the width direction, and is located in the same row as the row of the tail portions 63 of the first signal terminals 61 extending in the longitudinal direction of the first connector 10 along the long wall portion 12a. Therefore, in the operation of mounting the first connector 10 on the surface of the first board, the tail portion 53 of the first power terminal 51 can be connected to the connection pad formed on the surface of the first board by the same operation as the tail portion 63 of the first signal terminal 61, thereby improving the operation efficiency. Also, the operator can easily visually check the connection state of the tail portion 53 of the first power terminal 51 to the connection pad formed on the surface of the first board, similar to the tail portion 63 of the first signal terminal 61.

[0061] Next, the configuration of the second connector 101 will be described.

[0062] Fig. 11 is a perspective view showing the second connector in the first embodiment, Fig. 12 is a four-sided view of the second connector in the first embodiment, Fig. 13 is an exploded view of the second connector in the first embodiment, Fig. 14 is a perspective view showing the terminals of the second connector in the first embodiment, and Fig. 15 is a view showing the attachment portion of the signal terminals of the second connector to the fixed housing in the first embodiment. In Fig. 12, (a) is a top view, (b) is a side view, (c) is a bottom view, and (d) is a front view, in Fig. 14, (a) is a view showing the signal terminals, (b) is a view showing the power terminals, and in Fig. 15, (a) is a cross-sectional view taken along the line GG in Fig. 12(a), (b) is a perspective view, and (c) is an enlarged view of part H in (b).

[0063] In this embodiment, the second connector 101 is configured to be symmetrical when viewed from the width direction (Y-axis direction) and also when viewed from the longitudinal direction (X-axis direction) as shown in Fig. 12. The second housing 111 of the second connector 101 is a member integrally formed from an insulator (dielectric) such as synthetic resin.

[0064] The second housing 111 has a lower portion 112 and an upper portion 131 connected to an upper end of the lower portion 112. The lower surface of the lower portion 112, i.e., the lower surface of the second housing 111, is a mounting surface 111b facing the surface of the second board.

[0065] The lower portion 112 is a generally rectangular cylindrical member, and includes a pair of parallel rectangular plate-like long wall portions 112a extending in the longitudinal direction, a pair of parallel rectangular thick plate-like or prismatic members extending in the width direction, short wall portions 112b connecting both ends of the long wall portions 112a, and a lower cavity 134 which is a prismatic cavity whose four sides are defined by the long wall portions 112a and the short wall portions 112b and whose lower end (Z-axis positive end) is open. The upper end (Z-axis negative end) of the lower cavity 134 is closed by a boundary wall 135 which is a flat plate-like material extending in the XY direction and which is a boundary between the lower portion 112 and the upper portion 131, as shown in FIG. 15(a). 12(c), the inside of the lower cavity 134 is divided into a plurality of compartments by partition plates 134a, which are a plurality of plate members extending in the YZ direction. Further, an outward protrusion 112c is formed at the lower end of the short wall portion 112b. A metal fitting holding recess 112d is formed in the outward protrusion 112c, and a housing fixing metal fitting 171 is housed and held in the metal fitting holding recess 112d.

[0066] At the lower end of each of the short wall portions 112b, a lower end notch 112g is formed at a location adjacent to the long wall portion 112a. At a location on the lower surface of the short wall portion 112b corresponding to the lower end notch 112g, the lower end of a power terminal holding recess 112e is open as shown in FIG. 12(c). The power terminal holding recess 112e is a long and narrow groove or hole that penetrates the inside of the short wall portion 112b in the vertical direction, and each power terminal holding recess 112e accommodates and holds a held portion 152 of a second power terminal 151 that is a power terminal, that is, a power terminal among the second terminals provided in the second connector 101. The lower end notch 112g accommodates a tail portion 153 of the second power terminal 151 that extends outward in the width direction (Y-axis direction) from the lower end of the held portion 152. In the example shown in the figure, two power terminal holding recesses 112e are formed on each of the short wall portions 112b at both ends of the second housing 111 in the longitudinal direction, but the number can be changed according to the number of second power terminals 151.

[0067] 12(c) and 15(a), a plurality of signal terminal holding recesses 112f each having a long and narrow groove shape extending in the vertical direction are formed on the inner surface of the long wall portion 112a. A held portion 162 of a second signal terminal 161, which is a signal terminal among the second terminals provided in the second connector 101, is accommodated and held in each signal terminal holding recess 112f. In the example shown in the figures, 30 signal terminal holding recesses 112f are formed on each of the left and right long wall portions 112a of the second housing 111, but the number of signal terminal holding recesses 112f can be changed according to the number of second signal terminals 161.

[0068] The upper portion 131 is a generally rectangular cylindrical member similar to the lower portion 112, but has a smaller outer dimension than the lower portion 112. The upper portion 131 has a pair of parallel rectangular flat long wall portions 131a extending in the longitudinal direction, a pair of parallel rectangular thick plate-like or prismatic members extending in the width direction, and a short wall portion 131b connecting both ends of the long wall portion 131a, and an upper cavity 133 which is a prismatic cavity whose four sides are defined by the long wall portion 131a and the short wall portion 131b and whose upper end (Z-axis negative direction end) is open. The lower ends of the long wall portion 131a and the short wall portion 131b are integrally connected to the upper ends of the long wall portion 112a and the short wall portion 112b of the lower portion 112. The upper cavity 133 is a cavity whose cross-sectional shape and area are almost the same as those of the lower cavity 134, but its lower end is closed by the boundary wall 135 as shown in Fig. 15(a) and is partitioned from the lower cavity 134. Note that no member equivalent to the partition plate 134a is present in the upper cavity 133.

[0069] Further, an upwardly protruding end portion 131c having a generally quadrangular pyramid shape is formed at the upper end of each of the short walls 131b. A groove-shaped power terminal accommodating recess 131e extending in the vertical direction is opened on the side surface of each of the short walls 131b extending in the longitudinal direction of the second connector 101. The power terminal accommodating recesses 131e are formed in the same number as the power terminal holding recesses 112e, and each lower end communicates with the upper end of the corresponding power terminal holding recess 112e. The contact portion 155 of the second power terminal 151 is accommodated in each power terminal accommodating recess 131e, and at least a part of the contact protrusion 155a protrudes outward from the side surface of the short wall portion 131b.

[0070] 11 and 15(a), a plurality of signal terminal accommodating recesses 131f, each having a long and narrow groove shape extending in the vertical direction, are formed on the inner surface of the long wall portion 131a. The signal terminal accommodating recesses 131f are formed in the same number as the signal terminal holding recesses 112f, and the lower end of each recess is connected to the upper end of the corresponding signal terminal holding recess 112f. A contact portion 165 of the second signal terminal 161 is accommodated in each signal terminal accommodating recess 131f. The surface of the contact portion 165 is substantially flush with the inner surface of the long wall portion 131a, or protrudes slightly into the upper cavity 133 beyond the inner surface.

[0071] Each of the second signal terminals 161 is an elastic, elongated rod-like member integrally formed by punching, bending, or the like, a conductive metal plate, and includes a held portion 162, a tail portion 163 as a board connecting portion connected to the lower end of the held portion 162, and a contact portion 165 connected to the upper end of the held portion 162, as shown in FIG. 14. In the example shown in the figure, the second signal terminals 161 are arranged in a pair of left and right rows extending in the longitudinal direction of the second connector 101, with the same pitch (for example, about 0.3 to 0.5 mm) as the first signal terminals 61, and the same number (for example, 30) of the second signal terminals 161 arranged side by side. The number and pitch of the second signal terminals 161 can be appropriately changed, as with the first signal terminals 61. The second signal terminals 161 in each row are arranged symmetrically to each other when viewed in the longitudinal direction of the second connector 101. Each second signal terminal 161 is formed by bending a plate material extending in a plane parallel to the longitudinal direction of the second connector 101 within a transverse section (YZ plane) of the second connector 101 as shown in Figure 15(a).

[0072] The tail portion 163 is bent at about 90 degrees and connected to the held portion 162 extending in the vertical direction, and extends outward in the width direction of the second housing 111. The lower surface of the tail portion 163 is substantially flush with the mounting surface 111b, which is the lower surface of the second housing 111, and is connected and fixed by means of soldering or the like to a connection pad formed on the surface of a second substrate (not shown). The connection pad is typically connected to a conductive trace for transmitting a signal on the second substrate. As shown in FIG. 12(a), when viewed from above, at least the tip of the tail portion 163 is located outside the width direction of the long wall portion 112a of the lower portion 112 of the second housing 111, and is arranged in a row extending in the longitudinal direction of the second connector 101 along the long wall portion 112a. Therefore, in the operation of mounting the second connector 101 on the surface of the second board, the operator can easily visually confirm the connection state of the tail portion 163 to the connection pad formed on the surface of the second board. Furthermore, the tail portion 163 is set so that the tip of the tail portion 163 protrudes less outward in the width direction than the long wall portion 112a of the lower portion 112 of the second housing 111, and is set to be short in length. This makes it possible to prevent an increase in the impedance of the second signal terminal 161.

[0073] The held portion 162 includes a linear rod-like or band-like main body 162a having a rectangular cross-sectional shape and constant dimensions in the width direction (X-axis direction) and thickness direction (Y-axis direction), and a plurality of protrusions 162b protruding outward in the width direction from both side surfaces in the width direction (X-axis direction) of the main body 162a. The main body 162a is set so that its width dimension is smaller than the width dimension of the signal terminal holding recess 112f, and the distance between the tips of the left and right protrusions 162b is larger than the width dimension of the signal terminal holding recess 112f. As a result, the held portion 162 of the second signal terminal 161 inserted into the signal terminal holding recess 112f from the mounting surface 111b side of the second housing 111 is stably held by the left and right protrusions 162b biting into the left and right wall surfaces of the signal terminal holding recess 112f.

[0074] Further, the contact portion 165 connected to the upper end of the held portion 162 is a linear rod-like or band-like portion whose dimensions in the width direction (X-axis direction) and thickness direction (Y-axis direction) are similar to those of the main body portion 162a of the held portion 162, and extends linearly upward (Z-axis negative direction). Most of the contact portion 165 is accommodated in the signal terminal accommodating recess 131f, and the surface of the contact portion 165 on the width direction center side of the second connector 101 is exposed in the upper cavity 133.

[0075] The second signal terminal 161 is used to transmit a signal, similarly to the first signal terminal 61. However, in recent years, various signals have become faster, and it may be possible to transmit a high-frequency signal of, for example, about 8 GHz (16 Gbps). When transmitting such a high-frequency signal, it is necessary to match the impedance. Therefore, in this embodiment, a signal terminal accommodating recess first recess 131d1 and a signal terminal accommodating recess second recess 131d2, which are spaces made of air having a relative dielectric constant lower than that of the second housing 111, are provided in the long wall portion 131a of the upper side portion 131 of the second housing 111, which is a dielectric located on the back surface of the contact portion 165, to adjust the dielectric constant of the dielectric surrounding the contact portion 165, thereby making it possible to adjust the impedance of the second signal terminal 161.

[0076] Each of the second power terminals 151 is an elastic member integrally formed by punching, bending, or the like, a conductive metal plate, and includes a held portion 152, a tail portion 153 as a board connection portion connected to the lower end of the held portion 152, an intermediate portion 154 connected to the upper end of the held portion 152, and a contact portion 155 connected to the upper end of the intermediate portion 154, as shown in FIG. 14(b). In the example shown in the figure, the second power terminals 151 are disposed near both ends in the longitudinal direction of a pair of side surfaces extending in the longitudinal direction of the second connector 101. Therefore, the second connector 101 is provided with power lines for passing positive and negative power currents near both ends in the longitudinal direction. In addition, the left and right second power terminals 151 near both ends in the longitudinal direction of the second connector 101 are configured to be symmetrical to each other when viewed in the longitudinal direction of the second connector 101. Each second power supply terminal 151 is formed by bending a plate material extending in the longitudinal direction of first connector 101 within a plane parallel to the longitudinal direction of second connector 101.

[0077] The held portion 152 includes a flat body portion 152a extending in the longitudinal direction and the up-down direction of the second connector 101, and a plurality of protrusions 152b protruding outward in the width direction from both side surfaces in the width direction (X-axis direction) of the body portion 152a. The body portion 152a is set so that its width dimension is smaller than that of the power terminal holding recess 112e, and the distance between the tips of the left and right protrusions 152b is larger than the width dimension of the power terminal holding recess 112e. As a result, the held portion 152 of the second power terminal 151 inserted from the mounting surface 111b side of the second housing 111 is stably held as the left and right protrusions 152b bite into the left and right wall surfaces of the power terminal holding recess 112e.

[0078] Further, the intermediate portion 154 is a long, thin, strip-shaped member extending upward (in the negative Z-axis direction) from the upper end of the main body portion 152a of the held portion 152, and its widthwise dimension (in the X-axis direction) is set to be smaller than the widthwise dimension of the main body portion 152a.

[0079] Furthermore, the contact portion 155 is a portion that comes into contact with the first power terminal 51 of the first connector 10, is a band-shaped portion whose dimensions in the width direction (X-axis direction) and thickness direction (Y-axis direction) are the same as those of the intermediate portion 154, and functions as a cantilever with a lower end connected to the upper end of the intermediate portion 154 as a base end (fixed end) and an upper end as a free end. Specifically, the contact portion 155 includes a contact arm portion 155b whose upper end is located outside the intermediate portion 154 in the width direction of the second housing 111 in an initial state in which the lower end is connected to the intermediate portion 154 and no external force is applied, a contact protrusion 155a connected to the upper end of the contact arm portion 155b and bulging outward in the width direction of the second housing 111, and a contact tip portion 155c which is the upper end of the contact protrusion 155a and faces inward in the width direction of the second housing 111. As shown in FIG. 11, the contact portion 155 accommodated in the power terminal accommodating recess 131e of the upper portion 131 of the second housing 111 is configured so that at least a portion of the contact protrusion 155a protrudes outward from the side surface of the short wall portion 112b.

[0080] Furthermore, the tail portion 153 is bent at about 90 degrees and connected to the main body portion 152a of the held portion 152 extending in the vertical direction, and extends outward in the width direction of the second housing 111. The tail portion 153 has a relay portion 153b connected to the main body portion 152a of the held portion 152, and a main body portion 153a connected to the relay portion 153b via a step portion 153c and extending outward in the width direction of the second housing 111. The lower surface of the main body portion 153a is substantially flush with the mounting surface 111b, which is the lower surface of the second housing 111, and is connected and fixed to a connection pad formed on the surface of a second substrate (not shown) by means of soldering or the like. The connection pad is connected to a conductive trace for transmitting a power supply current on the second substrate. In addition, relay portion 153b connected to main body portion 153a via step portion 153c is located above main body portion 153a, and its lower surface is spaced apart from the surface of the second board. Also, as shown in Fig. 12(a), when viewed from above, at least the tip of main body portion 153a of tail portion 153 is located outside in the width direction from the side wall of outward protrusion portion 112c of second housing 111. Therefore, an operator can easily visually confirm the connection state of tail portion 153 of second power terminal 151 to the connection pad formed on the surface of the second board, similar to tail portion 163 of second signal terminal 161.

[0081] The housing fixing metal fitting 171 is an elastic member formed integrally by subjecting a metal plate to processing such as punching and bending, and as shown in Fig. 13, includes a held portion 172 and a tail portion 173 serving as a board connecting portion connected to the lower end of the held portion 172. In the example shown in the figure, the housing fixing metal fittings 171 are disposed one at each end in the longitudinal direction of the second connector 101, and are attached so as to be parallel to the end face of the outward protruding portion 112c of the lower portion 112 that faces outward in the longitudinal direction of the second connector 101.

[0082] The held portion 172 includes a flat body portion 172a extending in the width direction and the up-down direction of the second connector 101, and a plurality of protrusions 172b protruding outward in the width direction from both side surfaces in the width direction (Y-axis direction) of the body portion 172a. The body portion 172a is set so that its width dimension is smaller than the width dimension of the metal fitting holding recess 112d in the outward protruding portion 112c, and the distance between the tips of the left and right protrusions 172b is larger than the width dimension of the metal fitting holding recess 112d. As a result, the held portion 172 of the housing fixing metal fitting 171 inserted into the metal fitting holding recess 112d from the side opposite to the mounting surface 111b of the second housing 111 is stably held by the left and right protrusions 172b biting into the left and right wall surfaces of the metal fitting holding recess 112d.

[0083] Two tail portions 173 are formed on each housing fixing metal fitting 171. Specifically, each tail portion 173 is bent approximately 90 degrees and connected to the held portion 172 extending in the up-down direction, and extends outward in the longitudinal direction of the second housing 111. The lower surface of the tail portion 173 is substantially flush with the mounting surface 111b, which is the lower surface of the second housing 111, and is connected and fixed by means of soldering or the like to a connection pad formed on the surface of a second substrate (not shown). The connection pad is typically not connected to a conductive trace of the second substrate, and functions only to fix the housing fixing metal fitting 171 to the surface of the second substrate.

[0084] In this way, because housing fixing metal fittings 171 are fixed to the surface of the second board, second housing 111 is more firmly attached to the surface of the second board, resulting in a more secure mounting state of second connector 101 on the second board.

[0085] Here, for convenience of explanation, the second connector 101 is described as a so-called straight type connector, which is mounted in a state in which it is erected on the surface of the second board, i.e., in a state in which the upper cavity 133 faces upward (Z-axis negative direction) and opens, and the upper cavity 133 extends in a direction perpendicular to the second board, but the second connector 101 is not limited to a straight type, and may be a so-called right-angle type connector. In the case of a right-angle type, the long wall portion 112a of the lower part 112 and the long wall portion 131a of the upper part 131 are approximately parallel to the surface of the second board, and the upper cavity 133 is also mounted so as to be approximately parallel to the surface of the second board.

[0086] Next, the operation of mating first connector 10 and second connector 101 having the above-mentioned configuration will be described.

[0087] Fig. 16 is a three-view diagram showing the first connector and the second connector in the first embodiment in a mated state, and Fig. 17 is a longitudinal sectional view showing the first connector and the second connector in the first embodiment in a mated state, which is a sectional view taken along the line KK in Fig. 16(a). In Fig. 16(a), (a) is a plan view seen from the second connector side, (b) is a sectional view taken along the line II in (a), and (c) is a sectional view taken along the line JJ in (a).

[0088] Here, the first connector 10 is surface-mounted on the first board by connecting the tail portion 63 of the first signal terminal 61 and the tail portion 53 of the first power terminal 51 to connection pads on the surface of the first board (not shown) by soldering. Also, the connection pad to which the tail portion 63 of the first signal terminal 61 is connected is connected to a conductive trace for transmitting a signal on the first board, and the connection pad to which the tail portion 53 of the first power terminal 51 is connected is connected to a conductive trace for transmitting power supply on the first board.

[0089] Similarly, the second connector 101 is surface-mounted on the second board by connecting the tail portion 163 of the second signal terminal 161, the tail portion 153 of the second power terminal 151, and the tail portion 173 of the housing fixing metal fitting 171 to connection pads on the surface of the second board (not shown) by soldering. Also, the connection pad to which the tail portion 163 of the second signal terminal 161 is connected is connected to a conductive trace for transmitting a signal on the second board, and the connection pad to which the tail portion 153 of the second power terminal 151 is connected is connected to a conductive trace for transmitting power supply on the second board.

[0090] First, the operator places the mating surface of the first connector 10 (the upper side surface in FIG. 2) opposite to the mating surface of the second connector 101 (the upper side surface in FIG. 11), and adjusts the position of the upper portion 131 of the second housing 111 of the second connector 101 so as to match the position of the mating housing accommodating cavity 35 of the first movable housing 31 of the first connector 10. This completes the alignment of the first connector 10 and the second connector 101 as shown in FIG. 1(b).

[0091] In this state, when the first connector 10 and / or the second connector 101 is moved in a direction approaching the mating side, i.e., in the mating direction, the upper part 131 of the second housing 111 is inserted into the mating housing accommodating cavity 35 in the main body part 32 of the first movable housing 31, and the central wall part 34 of the mating housing accommodating cavity 35 is inserted into the upper cavity 133 of the upper part 131. Since the upper ends of both longitudinal ends of the upper part 131 are formed with upwardly protruding end parts 131c having an approximately quadrangular pyramid shape with an inclined surface, the upper part 131 is smoothly inserted into the mating housing accommodating cavity 35 during mating. In addition, the upper end of the short wall portion 32b and the upper end of the long wall portion 32a near the corner 32h of the first movable housing 31 are covered by the first upper end covering portion 57a ​​and the second upper end covering portion 57b made of metal, so that they will not be damaged or broken even if the upper protruding end portion 131c of the second housing 111 abuts against them during fitting.

[0092] As a result, as shown in Figures 1(a), 16 and 17, when the first connector 10 and the second connector 101 are engaged, the first movable housing 31 and the second housing 111 are engaged, so that the corresponding first signal terminal 61 and the second signal terminal 161 are electrically connected, and the corresponding first power terminal 51 and the second power terminal 151 are electrically connected.

[0093] Specifically, at least a portion near the upper end of upper portion 131 of second housing 111 enters between long wall portion 32a and central wall portion 34 in the mating housing accommodating cavity 35, and the surface of the second connector 101 toward the center of the width of contact portion 165 of second signal terminal 161 accommodated in signal terminal accommodating recess 131f of upper portion 131 contacts the portion of contact protrusion 65a of contact portion 65 of first signal terminal 61 accommodated in signal terminal contact portion accommodating groove 34a of central wall portion 34 that protrudes outward from the side surface of central wall portion 34, thereby establishing electrical conductivity between the first signal terminal 61 and the second signal terminal 161. At this time, the contact portion 65 of the first signal terminal 61 functions as a cantilever, and the contact protrusion 65a is pressed against the surface of the contact portion 165 of the second signal terminal 161 by the elasticity exerted by the cantilever, so that the conductive state between the first signal terminal 61 and the second signal terminal 161 is reliably maintained.

[0094] Furthermore, at least a portion near the upper end of the short wall portion 131b of the upper portion 131 of the second housing 111 enters near the short wall portion 32b in the mating housing accommodating cavity 35, and the portion protruding outward from the side surface of the short wall portion 131b of the contact protrusion 155a of the contact portion 155 of the second power terminal 151 accommodated in the power terminal accommodating recess 131e formed on the side surface extending in the longitudinal direction of the short wall portion 131b comes into contact with a contact surface, which is the surface of the flat contact portion 55 connected to the lower end of the second upper end covering portion 57b that covers the upper end of the long wall portion 32a near the corner 32h of the first movable housing 31, thereby establishing electrical conductivity between the first power terminal 51 and the second power terminal 151. At this time, the contact portion 155 of the second power terminal 151 functions as a cantilever, and the contact protrusion 155a is pressed against the contact surface of the contact portion 55 of the first power terminal 51 by the elasticity exerted by the cantilever, so that the conductive state between the first power terminal 51 and the second power terminal 151 is reliably maintained.

[0095] In this way, when the first connector 10 and the second connector 101 are engaged with each other, even if, for example, there is a change in the positional relationship between the first board and the second board and the second connector 101 is displaced relative to the first connector 10, or if the second connector 101 is subjected to external forces such as impact or vibration, the bent portion 54 of the first power terminal 51 and the bent portion 64 of the first signal terminal 61 flexibly deform to appropriately absorb the displacement of the first movable housing 31 engaged with the second housing 111 relative to the first fixed housing 11, so that the engaged state between the first connector 10 and the second connector 101 is maintained without being released.

[0096] Thus, in the present embodiment, the first connector 10 comprises a first fixed housing 11, a first movable housing 31 that is movable relative to the first fixed housing 11, and a first power terminal 51 held by the first fixed housing 11 and the first movable housing 31. The first fixed housing 11 includes a long wall portion 12a extending in the longitudinal direction of the first connector 10 and a short wall portion 12b extending in the width direction of the first connector 10 and connected to an end of the long wall portion 12a, the first movable housing 31 includes a long wall portion 32a extending in the longitudinal direction of the first connector 10 and a short wall portion 32b extending in the width direction of the first connector 10 and connected to an end of the long wall portion 32a, the first power supply terminal 51 includes a fixed side held portion 52 held by the short wall portion 12b of the first fixed housing 11, a movable side held portion 56 held by the first movable housing 31, and a bent portion 54 connecting the fixed side held portion 52 and the movable side held portion 56, and the movable side held portion 56 includes a first main body portion 56a at least a portion of which extends along the short wall portion 32b and a second main body portion 56b at least a portion of which extends along the long wall portion 32a.

[0097] This allows the first movable housing 31 to have a high degree of freedom of displacement, and the first movable housing 31 has high robustness, making it possible to reliably maintain the mated state with the second connector 101. In addition, the first connector 10 can be made smaller, and the structure can be simplified to reduce the number of parts, facilitate manufacturing, reduce costs, and improve reliability.

[0098] Furthermore, the first main body 56a includes a first upper end cover 57a that covers the upper end of the short wall 32b, and the second main body 56b includes a second upper end cover 57b that covers the upper end of the long wall 32a. Therefore, even if the second housing 111 comes into contact with the second connector 101 when mated with the first movable housing 31, the long wall 32a and the end wall 32b of the first movable housing 31 will not be damaged or broken.

[0099] Furthermore, the second upper end cover portion 57b is connected to a contact portion 55 that is disposed inside the long wall portion 32a and contacts the second power supply terminal 151, the contact portion 55 extending in the vertical direction along the inner surface 32a1 of the long wall portion 32a, preferably parallel to the inner surface 32a1 of the long wall portion 32a. Therefore, the electrical continuity between the first power supply terminal 51 and the second power supply terminal 151 is reliably maintained.

[0100] Furthermore, the bent portion 54 is bent in a substantially S-shape when viewed from the width direction of the first connector 10, with one end connected to the upper end of the fixed-side held portion 52 and the other end connected to the lower end of the first main body portion 56a of the movable-side held portion 56. Therefore, the first power terminal 51 has flexibility mainly in the longitudinal direction of the first connector 10, and the first movable housing 31 can be displaced stably relative to the first fixed housing 11.

[0101] Furthermore, the second main body portion 56b of the movable-side held portion 56 includes an engagement opening 58 that engages with the first movable housing 31. Therefore, the movable-side held portion 56 is reliably held by the first movable housing 31.

[0102] Furthermore, the first power supply terminal 51 includes a tail portion 53 connected to the fixed-side held portion 52, and the tail portion 53 includes a relay portion 53b extending from the lower end of the fixed-side held portion 52 toward the longitudinal center of the first connector 10, and a main body portion 53a connected to the relay portion 53b and extending outward in the width direction of the first connector 10. Therefore, the tail portion 53 is not located outside both longitudinal ends of the first fixed housing 11, so that the mounting surface of the first connector 10 on the surface of the first board does not increase in the longitudinal direction.

[0103] Furthermore, the first power terminals 51 are arranged in pairs at both longitudinal ends of the first connector 10, and are arranged side by side in the width direction of the first connector 10 at each longitudinal end. Therefore, the first movable housing 31 is held stably and flexibly displaceable relative to the first fixed housing 11. Furthermore, the first connector 10 can be provided with power lines at both longitudinal ends, through which positive and negative power currents flow.

[0104] Next, a second embodiment will be described. Note that the same reference numerals are given to components having the same structure as the first embodiment, and the description thereof will be omitted. Also, the description of the same operations and effects as the first embodiment will be omitted.

[0105] Figure 18 is an exploded view of the first connector in the second embodiment, Figure 19 is an oblique view seen from diagonally below showing the relationship between the movable housing and signal terminals of the first connector in the second embodiment, and Figure 20 is a diagram showing the mounting portion of the power terminal of the first connector to the movable housing in the second embodiment.

[0106] In Figure 19, (a) is an oblique view including a cross section viewed from diagonally below the first connector, (b) is an oblique view including a side section viewed from diagonally below the first connector, and in Figure 20, (a) is a top view of the first connector, (b) is a cross-sectional view taken along the LL arrow in (a), and (c) is a cross-sectional view taken along the MM arrow in (a).

[0107] In the first embodiment, the movable side held portion 56 of the first power terminal 51 includes a first upper end covering portion 57a ​​connected to the upper end of the first main body portion 56a, a second upper end covering portion 57b connected to the upper end of the second main body portion 56b, and an engagement opening 58 formed in the second main body portion 56b, and the movable side held portion 56 moves from above to below relative to the first movable housing 31 and is attached near the corner 32h of the first movable housing 31, and the first upper end covering portion 57a ​​and the second upper end covering portion 57b cover the upper end of the short wall portion 32b and the upper end of the long wall portion 32a near the corner 32h of the first movable housing 31.

[0108] In contrast, in the present embodiment, the movable side held portion 56 of the first power terminal 51 does not include the first upper end covering portion 57a, the second upper end covering portion 57b, and the engagement opening 58, and the movable side held portion 56 moves from below to above relative to the first movable housing 31 to be attached near the corner 32h of the first movable housing 31.

[0109] In the present embodiment, the shape of tail portion 53 of first power terminal 51, the structure of part of first movable housing 31, and the structure of part of first fixed housing 11 are also different from those in the first embodiment.

[0110] In this embodiment, the first body portion 56a of the movable-side held portion 56 of the first power terminal 51 is a long and narrow strip extending in the width direction of the first connector 10, and has a smaller vertical dimension than the first body portion 56a in the first embodiment. The second body portion 56b in this embodiment is bent at about 90 degrees and connected to the outer edge of the width direction of the first connector 10 at the first body portion 56a, and has a long and narrow strip extending toward the center of the length of the first connector 10, and has a smaller vertical dimension than the second body portion 56b in the first embodiment. The second body portion 56b in this embodiment does not include an engagement opening 58.

[0111] The contact portion 55 in this embodiment is connected to the second main body portion 56b via a contact portion connecting piece 55d. Specifically, a long and thin strip-shaped contact portion connecting piece 55d is connected to the end of the second main body portion 56b at the center side of the longitudinal direction of the first connector 10 at the lower end edge of the second main body portion 56b, bent at about 90 degrees, and extended toward the inside of the width direction of the first connector 10. The contact portion 55, which is a long and thin strip-shaped plate extending in the vertical direction, is connected to the tip of the contact portion connecting piece 55d at about 90 degrees. Also, an engagement protrusion 58a as a locked portion to be locked to the first movable housing 31 extends upward from a portion close to the first main body portion 56a at the upper end edge of the second main body portion 56b.

[0112] Further, four corners 32h of the main body 32 of the first movable housing 31 are formed with power terminal movable-side accommodating recesses 32g for accommodating parts of the movable-side held portions 56 of the first power terminals 51, but the power terminal movable-side accommodating recesses 32g in this embodiment include second accommodating recesses 32g2 formed on the inner side surface 32a1 of the long wall portion 32a but do not include first accommodating recesses 32g1 formed on the inner side surface 32b1 of the short wall portion 32b. Furthermore, no engagement protrusions 32d are formed on the outer side surface of the long wall portion 32a.

[0113] However, thickened portions 32j are formed in the outer surface of the long wall portion 32a in the vicinity of both longitudinal ends. The power terminal movable-side accommodating recess 32g in this embodiment includes a third accommodating recess 32g3 as a locking recess formed in the thickened portion 32j. The third accommodating recess 32g3 is a slit-like cavity extending in the vertical direction with its lower end opening to the downward surface of the first movable housing 31, specifically, to the lower surface of the thickened portion 32j, and is a cavity into which the engaging protrusion 58a of the movable-side held portion 56 of the first power terminal 51 is inserted from relatively below and held.

[0114] The second accommodating recess 32g2 penetrates the bottom 32c of the main body 32 of the first movable housing 31 in the vertical direction, and its lower end is open to the lower surface of the bottom 32c. The contact portion 55 of the movable-side held portion 56 of the first power terminal 51 is inserted into and accommodated in the second accommodating recess 32g2 from relatively below.

[0115] In this embodiment, the foot portion 33a is not connected to the leg portion 33 of the first movable housing 31. Accordingly, in the first fixed housing 11, the lower end notch 12c is omitted.

[0116] In addition, in the present embodiment, the tail portion 53 of the first power terminal 51 is formed so that its relay portion 53b is bent at approximately 90 degrees and connected to the widthwise outer edge of the first connector 10 of the main body portion 52a of the fixed-side held portion 52 extending in the vertical direction, and extends toward the longitudinal center of the first fixed housing 11. The main body portion 53a of the tail portion 53 is bent at approximately 90 degrees and connected to the relay portion 53b, and extends outward in the widthwise direction of the first fixed housing 11.

[0117] Other basic configurations of the first connector 10 in this embodiment are similar to those of the first embodiment, and therefore description thereof will be omitted.

[0118] Next, the configuration of the second connector 101 will be described.

[0119] FIG. 21 is an exploded view of the second connector in the second embodiment.

[0120] Unlike second connector 101 in the first embodiment, second connector 101 in the present embodiment does not include housing fixing metal fittings 171. Accordingly, in second housing 111, outward protrusion 112c in which metal fitting holding recess 112d is formed is omitted.

[0121] Other basic configurations of second connector 101 in this embodiment are similar to those in the first embodiment, so description thereof will be omitted.

[0122] Next, the operation of mating first connector 10 and second connector 101 having the above-mentioned configuration will be described.

[0123] Fig. 22 is a three-view diagram showing a state in which the first connector and the second connector in the second embodiment are mated, and Fig. 23 is a longitudinal sectional view showing a state in which the first connector and the second connector in the second embodiment are mated, which is a sectional view taken along the line PP in Fig. 22(a). In Fig. 22(a), (a) is a plan view seen from the second connector side, (b) is a sectional view taken along the line NN in (a), and (c) is a sectional view taken along the line OO in (a).

[0124] As shown in Figures 22 and 23, when the first connector 10 and the second connector 101 are engaged, the first movable housing 31 and the second housing 111 are engaged, so that the corresponding first signal terminal 61 and the second signal terminal 161 are electrically connected, and the corresponding first power terminal 51 and the second power terminal 151 are electrically connected.

[0125] Specifically, at least a portion near the upper end of upper portion 131 of second housing 111 enters between long wall portion 32a and central wall portion 34 in the mating housing accommodating cavity 35, and the surface of the second connector 101 toward the center of the width of contact portion 165 of second signal terminal 161 accommodated in signal terminal accommodating recess 131f of upper portion 131 contacts the portion of contact protrusion 65a of contact portion 65 of first signal terminal 61 accommodated in signal terminal contact portion accommodating groove 34a of central wall portion 34 that protrudes outward from the side surface of central wall portion 34, thereby establishing electrical conductivity between the first signal terminal 61 and the second signal terminal 161. At this time, the contact portion 65 of the first signal terminal 61 functions as a cantilever, and the contact protrusion 65a is pressed against the surface of the contact portion 165 of the second signal terminal 161 by the elasticity exerted by the cantilever, so that the conductive state between the first signal terminal 61 and the second signal terminal 161 is reliably maintained.

[0126] Furthermore, at least a portion near the upper end of the short wall portion 131b of the upper portion 131 of the second housing 111 enters near the short wall portion 32b in the mating housing accommodating cavity 35, and the portion protruding outward from the side surface of the short wall portion 131b of the contact protrusion 155a of the contact portion 155 of the second power terminal 151 accommodated in the power terminal accommodating recess 131e formed on the side surface extending in the longitudinal direction of the short wall portion 131b comes into contact with a contact surface that is the surface of the flat contact portion 55 accommodated in the second accommodating recess 32g2 formed on the inner side surface 32a1 of the long wall portion 32a near the corner portion 32h of the first movable housing 31, thereby establishing electrical conductivity between the first power terminal 51 and the second power terminal 151. At this time, the contact portion 155 of the second power terminal 151 functions as a cantilever, and the contact protrusion 155a is pressed against the contact surface of the contact portion 55 of the first power terminal 51 by the elasticity exerted by the cantilever, so that the conductive state between the first power terminal 51 and the second power terminal 151 is reliably maintained.

[0127] In this way, when the first connector 10 and the second connector 101 are engaged with each other, even if, for example, there is a change in the positional relationship between the first board and the second board and the second connector 101 is displaced relative to the first connector 10, or if the second connector 101 is subjected to external forces such as impact or vibration, the bent portion 54 of the first power terminal 51 and the bent portion 64 of the first signal terminal 61 flexibly deform to appropriately absorb the displacement of the first movable housing 31 engaged with the second housing 111 relative to the first fixed housing 11, so that the engaged state between the first connector 10 and the second connector 101 is maintained without being released.

[0128] Thus, in the present embodiment, the engaging protrusion 58a is inserted from below into and locked in the third accommodating recess 32g3 whose lower end is open on the downward surface of the first movable housing 31. Therefore, the movable-side held portion 56 of the first power terminal 51 can be inserted from below relatively to the first movable housing 31 and fixed thereto, similar to the movable-side held portion 66 of the first signal terminal 61, and therefore the assembly process of the first connector 10 is simplified and the manufacturing cost of the first connector 10 can be reduced.

[0129] In addition, the operation of mating the first connector 10 and the second connector 101 in this embodiment, and the basic configuration and effects of other aspects of the state in which the first connector 10 and the second connector 101 are mated are the same as those in the first embodiment, so their explanation is omitted.

[0130] Next, a third embodiment will be described. Note that the same reference numerals are given to components having the same structures as those in the first and second embodiments, and the description thereof will be omitted. Also, the description of the same operations and effects as those in the first and second embodiments will be omitted.

[0131] Figure 24 is an oblique view showing the first connector and the second connector in the third embodiment, Figure 25 is an exploded view of the first connector in the third embodiment, Figure 26 is an oblique view seen from diagonally below showing the relationship between the movable housing and the signal terminals of the first connector in the third embodiment, and Figure 27 is a diagram showing the mounting portion of the power terminal of the first connector to the movable housing in the third embodiment.

[0132] In addition, in Figure 24, (a) is a diagram showing the mated state, and (b) is a diagram showing the state before mating. In Figure 26, (a) is an oblique view including a cross section viewed from diagonally below the first connector, (b) is an oblique view including a side section viewed from diagonally below the first connector. In Figure 27, (a) is a top view of the first connector, (b) is a cross-sectional view taken along the QQ arrow in (a), and (c) is a cross-sectional view taken along the RR arrow in (a).

[0133] As shown in FIG. 24, the first connector 10 and the second connector 101 in this embodiment have significantly reduced dimensions in the up-down direction (Z-axis direction) compared to the first connector 10 and the second connector 101 in the first and second embodiments.

[0134] Specifically, in the first movable housing 31 of the first connector 10, the vertical dimension of the main body 32 is substantially the same as in the first and second embodiments, whereas the vertical dimension of the leg 33 is significantly reduced compared to the first and second embodiments. Accordingly, the vertical dimensions of the first fixed housing 11, the first signal terminal 61, and the first power terminal 51 are also significantly reduced compared to the first and second embodiments.

[0135] In the first signal terminal 61 in this embodiment, the first straight portion 64a1 and the first curved portion 64b1 in the bent portion 64 are omitted, and the second curved portion 64b2 is changed to include a straight bottom straight portion 64b23 extending in the width direction of the first connector 10, and a bottom first curved portion 64b21 and a bottom second curved portion 64b22 connected to both ends of the bottom straight portion 64b23. The bottom first curved portion 64b21 is a curved portion bent by nearly 180 degrees, one end of which is connected to the lower end of the main body portion 66a of the movable-side held portion 66, and the other end of which is connected to the bottom straight portion 64b23. The bottom second curved portion 64b22 is a curved portion bent by nearly 180 degrees, one end of which is connected to the lower end of the second straight portion 64a2, and the other end of which is connected to the bottom straight portion 64b23. As a result, the vertical dimension of the first signal terminal 61 is significantly reduced compared to the first and second embodiments, and the contact tip 65c of the contact portion 65 is located slightly above the upper end of the third curved portion 64b3. The height (vertical position) of the upper end of the third curved portion 64b3 is approximately the same as in the first and second embodiments.

[0136] Furthermore, in the first power terminal 51 in the present embodiment, the length (vertical dimension) of the first straight portion 54a1 is significantly reduced compared to the second embodiment, and the movable side held portion 56 is changed so as to be positioned below the second curved portion 54b2, whereas in the second embodiment, the movable side held portion 56 is positioned above the second curved portion 54b2.

[0137] Furthermore, the vertical dimension of the first fixed housing 11 in this embodiment is significantly reduced compared to the first and second embodiments, and the eave portion 13c defining the upper end of the signal terminal fixed side retaining recess 13a formed on the inner surface of the long wall portion 12a is changed to be located near the upper end of the long wall portion 12a, whereas in the first and second embodiments it is located in the middle or lower half of the long wall portion 12a in the vertical direction.

[0138] Other basic configurations of the first connector 10 in this embodiment are similar to those of the second embodiment, so description thereof will be omitted.

[0139] Next, the configuration of the second connector 101 will be described.

[0140] FIG. 28 is an exploded view of the second connector in the third embodiment.

[0141] In the second connector 101 of the present embodiment, the vertical dimension of the upper part 131 of the second housing 111 is substantially the same as in the first and second embodiments, whereas the vertical dimension of the lower part 112 is significantly reduced compared to the first and second embodiments. Accordingly, the vertical dimensions of the held part 162 of the second signal terminal 161 and the held part 152 of the second power terminal 151 are also significantly reduced compared to the first and second embodiments.

[0142] Other basic configurations of second connector 101 in this embodiment are similar to those in the second embodiment, and therefore description thereof will be omitted.

[0143] Next, the operation of mating first connector 10 and second connector 101 having the above-mentioned configuration will be described.

[0144] Fig. 29 is a three-view diagram showing a state in which the first connector and the second connector in the third embodiment are mated, and Fig. 30 is a longitudinal sectional view showing a state in which the first connector and the second connector in the third embodiment are mated, which is a sectional view taken along the line UU in Fig. 29(a). In Fig. 29(a), (a) is a plan view seen from the second connector side, (b) is a sectional view taken along the line SS in (a), and (c) is a sectional view taken along the line TT in (a).

[0145] As shown in Figures 24(a), 29 and 30, when the first connector 10 and the second connector 101 are engaged, the first movable housing 31 and the second housing 111 are engaged, so that the corresponding first signal terminal 61 and the second signal terminal 161 are electrically connected, and the corresponding first power terminal 51 and the second power terminal 151 are electrically connected.

[0146] In this way, when the first connector 10 and the second connector 101 are engaged with each other, even if, for example, there is a change in the positional relationship between the first board and the second board and the second connector 101 is displaced relative to the first connector 10, or if the second connector 101 is subjected to external forces such as impact or vibration, the bent portion 54 of the first power terminal 51 and the bent portion 64 of the first signal terminal 61 flexibly deform to appropriately absorb the displacement of the first movable housing 31 engaged with the second housing 111 relative to the first fixed housing 11, so that the engaged state between the first connector 10 and the second connector 101 is maintained without being released.

[0147] In addition, the operation of mating the first connector 10 and the second connector 101 in this embodiment, and the basic configuration and effects of other aspects of the state in which the first connector 10 and the second connector 101 are mated are the same as those of the second embodiment, so their explanation is omitted.

[0148] Next, a fourth embodiment will be described. Note that the same reference numerals are given to components having the same structures as those in the first to third embodiments, and the description thereof will be omitted. Also, the description of the same operations and effects as those in the first to third embodiments will be omitted.

[0149] Figure 31 is an exploded view of the first connector in the fourth embodiment, Figure 32 is an oblique view seen from diagonally below showing the relationship between the movable housing and signal terminals of the first connector in the fourth embodiment, and Figure 33 is a diagram showing the mounting portion of the power terminal of the first connector to the movable housing in the fourth embodiment.

[0150] In addition, in Figure 32, (a) is an oblique view including a cross section viewed from diagonally below the first connector, (b) is an oblique view including a side section viewed from diagonally below the first connector, and in Figure 33, (a) is a top view of the first connector, (b) is a cross-sectional view taken along the VV arrows in (a), and (c) is a cross-sectional view taken along the WW arrows in (a).

[0151] In the first to third embodiments, the contact portion 55 of the first power terminal 51 is a rectangular plate material that is long in the vertical direction, and its surface functions as a contact surface that comes into contact with the second power terminal 151 of the second connector 101. The contact portion 55 is accommodated in the second accommodating recess 32g2 formed in the inner side surface 32a1 of the long wall portion 32a of the first movable housing 31 and is in a stationary state. The contact surface is parallel to the inner side surface 32a1.

[0152] In contrast, in the present embodiment, the contact portion 55 of the first power terminal 51 includes a contact arm portion 55b accommodated in the second accommodating recess 32g2, a contact protrusion portion 55a connected to the upper end of the contact arm portion 55b and bulging inward in the width direction of the first movable housing 31, and a contact tip portion 55c which is the upper end of the contact protrusion portion 55a and faces outward in the width direction of the first movable housing 31. Then, in a state before the first connector 10 and the second connector 101 are mated, that is, in an initial state in which no external force is applied, the contact arm portion 55b is gently inclined as a whole, with the upper end facing inward in the width direction of the first connector 10, that is, inward in the width direction of the first movable housing 31, and at least a part of the contact protrusion portion 55a protruding inward in the width direction of the first movable housing 31 from the inner side surface 32a1.

[0153] Specifically, similarly to the second and third embodiments, the first body portion 56a of the movable-side held portion 56 of the first power terminal 51 is an elongated strip-like plate extending in the width direction of the first connector 10, and the second body portion 56b is bent at approximately 90 degrees and connected to the outer edge of the first connector 10 in the width direction of the first body portion 56a, and extends toward the longitudinal center of the first connector 10. However, the second body portion 56b in this embodiment is a substantially L-shaped plate in side view (as viewed from the width direction of the first connector 10), and includes a strip-like vertical portion 56b1 extending downward from the connection portion with the first body portion 56a, and a strip-like horizontal portion 56b2 extending from the lower end of the vertical portion 56b1 toward the longitudinal center of the first connector 10.

[0154] An engagement protrusion 58a extends upward from the upper edge near the tip of the horizontal portion 56b2, and the upper end of the engagement protrusion 58a is connected to the lower end of the contact portion 55, i.e., the lower end of the contact arm portion 55b. The engagement protrusion 58a extends in the vertical direction (Z-axis direction), whereas the contact arm portion 55b is connected at an angle to the engagement protrusion 58a and extends obliquely upward so as to face inward in the width direction of the first movable housing 31. In this embodiment, the contact portion connecting piece 55d is omitted.

[0155] Similarly to the second and third embodiments, the long wall 32a of the main body 32 of the first movable housing 31 has a thick portion 32j formed therein, and the power terminal movable side accommodating recess 32g includes a third accommodating recess 32g3 formed in the thick portion 32j. However, in this embodiment, the thick portion 32j is formed over a wide area of ​​the long wall 32a, and the third accommodating recess 32g3 is formed so that its lower end is open to the lower surface of the thick portion 32j and its upper end is connected to the lower end of the second accommodating recess 32g2 formed in the inner surface 32a1 of the long wall 32a. The contact portion 55 of the movable side held portion 56 of the first power terminal 51 is inserted and accommodated in the second accommodating recess 32g2 through the third accommodating recess 32g3 from relatively below. At least a part of the contact protrusion 55a protrudes inward in the width direction of the first movable housing 31 from the inner surface 32a1. Further, the engaging protrusion 58a connected to the lower end of the contact portion 55 is accommodated and held within the third accommodating recess 32g3.

[0156] Other basic configurations of the first connector 10 in this embodiment are similar to those in the third embodiment, and therefore description thereof will be omitted.

[0157] Next, the configuration of the second connector 101 will be described.

[0158] FIG. 34 is an exploded view of the second connector in the fourth embodiment.

[0159] In the first to third embodiments, in an initial state in which no external force is applied, the contact portion 155 of the second power terminal 151 includes a contact arm portion 155b that is gently inclined overall, a contact protrusion portion 155a that is connected to the upper end of the contact arm portion 155b and bulges outward in the width direction of the second housing 111, and a contact tip portion 155c that is the upper end of the contact protrusion portion 155a and faces inward in the width direction of the second housing 111. The contact portion 155 accommodated in the power terminal accommodating recess 131e of the upper side portion 131 of the second housing 111 is configured so that at least a part of the contact protrusion 155a protrudes outward from the side surface of the short wall portion 112b.

[0160] In contrast, in this embodiment, contact portion 155 of second power terminal 151 is a rectangular plate material that is long in the vertical direction, and its surface functions as a contact surface that comes into contact with first power terminal 51 of first connector 10. Then, contact portion 155 is accommodated in power terminal accommodating recess 131e and is in a stationary state. Also, the contact surface is parallel to the side surface of short wall portion 112b, but it is desirable that the contact surface be recessed into short wall portion 112b beyond the side surface.

[0161] Other basic configurations of second connector 101 in this embodiment are similar to those in the third embodiment, so description thereof will be omitted.

[0162] Next, the operation of mating first connector 10 and second connector 101 having the above-mentioned configuration will be described.

[0163] Fig. 35 is a three-view diagram showing a state in which the first connector and the second connector in the fourth embodiment are mated, and Fig. 36 is a longitudinal sectional view showing a state in which the first connector and the second connector in the fourth embodiment are mated, which is a sectional view taken along the line ZZ in Fig. 35(a). In Fig. 35(a), (a) is a plan view seen from the second connector side, (b) is a sectional view taken along the line XX in (a), and (c) is a sectional view taken along the line YY in (a).

[0164] As shown in Figures 35 and 36, when the first connector 10 and the second connector 101 are engaged, the first movable housing 31 and the second housing 111 are engaged, so that the corresponding first signal terminal 61 and the second signal terminal 161 are electrically connected, and the corresponding first power terminal 51 and the second power terminal 151 are electrically connected.

[0165] Specifically, at least a portion near the upper end of the short wall portion 131b of the upper portion 131 of the second housing 111 enters near the short wall portion 32b in the mating housing accommodating cavity 35, and a portion protruding inward in the width direction of the first movable housing 31 from the inner surface 32a1 of the contact protrusion 55a of the contact portion 55 accommodated in the second accommodating recess 32g2 formed in the inner surface 32a1 of the long wall portion 32a near the corner 32h of the first movable housing 31 comes into contact with a contact surface, which is the surface of the contact portion 155 of the second power terminal 151 accommodated in the power terminal accommodating recess 131e formed on the side extending longitudinally of the short wall portion 131b, thereby establishing electrical conductivity between the first power terminal 51 and the second power terminal 151. At this time, the contact arm 55b of the first power terminal 51 functions as a cantilever, and the contact protrusion 55a is pressed against the contact surface of the contact portion 155 of the second power terminal 151 by the elasticity exerted by the cantilever, so that the conductive state between the first power terminal 51 and the second power terminal 151 is reliably maintained.

[0166] In addition, the operation of mating the first connector 10 and the second connector 101 in this embodiment, and the basic configuration and effects of other aspects of the state in which the first connector 10 and the second connector 101 are mated are the same as those of the third embodiment, so their explanation is omitted.

[0167] Moreover, the disclosure herein describes features of preferred and exemplary embodiments, and various other embodiments, modifications, and variations within the scope and spirit of the appended claims will occur to those skilled in the art upon review of the disclosure herein. [Industrial Applicability]

[0168] The present disclosure is applicable to connectors. [Explanation of symbols]

[0169] 1 Board to Board Connector 10 First Connector 11 First fixed housing 11b, 111b Mounting surface 12a, 32a, 112a, 131a long wall section 12b, 32b, 112b, 131b Short wall section 12c, 112g bottom end notch 13 Signal terminal mounting part 13a Signal terminal fixed side holding recess 13a1 Signal terminal fixed side holding part hollowing out 13b Signal terminal fixed side retaining wall 13b1 Signal terminal fixed side holding groove 13c, 14c eaves 14 Power terminal attachment part 14a Power terminal fixed side holding recess 14b Power terminal fixed side retaining wall 14b1 Power terminal fixed side holding groove 15 Movable housing cavity 31 First movable housing 32, 52a, 53a, 62a, 66a, 152a, 153a, 162a, 172a Main body 32a1, 32b1 inner surface 32a2, 32b2 top end surface 32c bottom 32c1 Signal terminal movable side holding part 1st cutout 32c2 Signal terminal movable side holding part second cutout 32d engaging protrusion 32e Signal terminal movable side holding recess 32g Power terminal movable side accommodation recess 32g1 First storage recess 32g2 Second storage recess 32g3 Third storage recess 32h corner 32j Thick part 33 Legs 33a Foot 34 Central wall 34a Signal terminal contact portion receiving groove 35 Counterpart housing cavity 51 1st power supply terminal 52, 62 Fixed side held part 52b, 62b, 66b, 152b, 162b, 172b protrusion 53, 63, 153, 163, 173 Tail section 53b, 153b relay section 53c, 153c Step 54, 64 Bend 54a1, 64a1 First straight section 54a2, 64a2 2nd straight section 54a3 3rd straight section 54b1, 64b1 1st curve section 54b2, 64b2 2nd curve part 54c Slit 55, 65, 155, 165, 855, 865 Contact 55b, 65b, 155b Contact arm 55c, 65c, 155c contact tip 55d Contact connection piece 56, 66 Movable side held part 56a First body part 56b Second body part 56b1 Vertical section 56b2 Horizontal part 57a 1st upper end covering part 57a1 1st upper cover extension 57b 2nd upper end covering part 58 Engagement opening 58a Engagement convex piece 61 1st signal terminal 64b21 Bottom first curved part 64b22 Bottom second curved part 64b23 Bottom third curved part 64b3 3rd curve part 65a, 155a contact protrusion 101 Second Connector 111 Second Housing 112 Lower part 112c Outward protrusion 112d Metal fitting holding recess 112e Power terminal holding recess 112f Signal terminal holding recess 131 Upper part 131c Upper protruding end 131d1 Signal terminal receiving recess No. 1 131d2 Signal terminal receiving recess second recess 131e Power terminal receiving recess 131f Signal terminal receiving recess 133 Upper cavity 134 Lower cavity 134a Partition 135 Boundary Wall 151 2nd power supply terminal 152, 162, 172 Retained part 154 Middle Section 161 2nd signal terminal 171 Housing fixing bracket 810 Floating Connector 811 Fixed Housing 831 Movable Housing 851 Power terminal 853, 863 PCB connection part 861 Signal terminal 875 Fixture 891 1st circuit board 910 Mating Connector 911 Opponent Housing 951 Counterpart power terminal 961 Counterpart signal terminal 991 2nd circuit board

Claims

1. (a) A connector comprising a fixed housing, a movable housing movable relative to the fixed housing, and a power supply terminal held by the fixed housing and the movable housing, (b) the fixed housing includes a long wall portion extending in a longitudinal direction of the connector and a short wall portion extending in a width direction of the connector and connected to an end of the long wall portion, (c) the movable housing includes a long wall portion extending in a longitudinal direction of the connector and a short wall portion extending in a width direction of the connector and connected to an end of the long wall portion, (d) the power supply terminal includes a fixed-side held portion held by a short wall portion of the fixed housing, a movable-side held portion held by the movable housing, and a bent portion connecting the fixed-side held portion and the movable-side held portion, (e) A connector characterized in that the movable side held portion includes a first held portion having at least a portion extending along the short wall portion and a second held portion having at least a portion extending along the long wall portion.

2. The connector according to claim 1 , wherein the first retained portion includes a first upper end covering portion that covers an upper end of the short wall portion, and the second retained portion includes a second upper end covering portion that covers an upper end of the long wall portion.

3. 3. The connector according to claim 1, wherein a contact portion that is disposed inside the long wall portion and that comes into contact with a mating power terminal is connected to the second held portion.

4. The connector according to claim 3 , wherein the contact portion extends in the vertical direction along an inner surface of the long wall portion.

5. 4. A connector as described in claim 3, wherein the contact portion includes a contact arm portion extending in an upward and downward direction at an angle relative to the inner surface of the long wall portion, and a contact protrusion connected to the upper end of the contact arm portion and bulging outward inward in the width direction of the connector.

6. 6. The connector according to claim 1, wherein the second held portion of the movable-side held portion includes a locked portion that is locked to the movable housing.

7. 7. The connector according to claim 6, wherein the locked portion is inserted from below into a locking recess whose lower end is open on the downward surface of the movable housing and locked therein.

8. A connector as described in any one of claims 1 to 7, wherein the bent portion is bent into an approximately S-shape when viewed from the width direction of the connector, one end is connected to an upper end of the fixed side held portion, and the other end is connected to a lower end of a first held portion of the movable side held portion.

9. A connector as described in any one of claims 1 to 8, wherein the power supply terminal includes a board connection portion connected to the fixed side held portion, and the board connection portion includes a relay portion extending from the fixed side held portion toward the longitudinal center of the connector, and a main body portion connected to the relay portion and extending outward in the width direction of the connector.

10. The connector according to any one of claims 1 to 9, wherein the power terminals are arranged in pairs at both longitudinal ends of the connector, and are arranged side by side in the width direction of the connector at each of the longitudinal ends.

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