Terminal fitting and connector

Abstract

Provided are a terminal fitting that is easy to handle while realizing a floating structure, and a connector.　This terminal fitting (11) comprises: a terminal connecting part (11A) that has a polygonal tube shape and connects to a mating terminal (T); a board connecting part (11E) that is connected to a circuit board (S); a displacement allowing part (11D) that is provided between the terminal connecting part (11A) and the board connecting part (11E) and allows relative displacement of the board connecting part (11E) and the terminal connecting part (11A); and a gripping part (11C) that is provided behind the terminal connecting part (11A) at a different location from the displacement allowing part (11D) and can be gripped from behind.

Description

Terminal fittings and connectors

[0001] The present disclosure relates to a terminal fitting and a connector.

[0002] Patent Document 1 discloses a technique in which a plurality of terminals are elastically deformed to displace a movable housing in the front-rear and left-right directions (i.e., floating).

[0003] JP 2023-178890 A

[0004] The terminal in Patent Document 1 has a configuration in which a movable-side held portion is press-fitted into a movable housing. The rear end of the movable-side held portion is connected to an intermediate portion. Therefore, when press-fitting the terminal into the movable housing, it is difficult to grasp the movable-side held portion from behind, making the terminal difficult to handle.

[0005] The connector of the present disclosure was completed based on the above circumstances, and aims to provide a terminal fitting and connector that are easy to handle while achieving a floating structure.

[0006] The terminal fitting of the first disclosure has a terminal connection portion that is shaped like a rectangular tube and connects to a mating terminal, a board connection portion that is connected to a circuit board, a displacement allowing portion that is provided between the terminal connection portion and the board connection portion and allows relative displacement between the board connection portion and the terminal connection portion, and a gripping portion that is separate from the displacement allowing portion and is provided behind the terminal connection portion so that it can be gripped from behind.

[0007] The connector of the second disclosure comprises the terminal fitting of the first disclosure, an inner housing having a plurality of cavities for accommodating the terminal connection portions, and an outer housing to which the board connection portion is connected.

[0008] According to the present disclosure, it is possible to provide a terminal fitting and a connector that are easy to handle while realizing a floating structure.

[0009] FIG. 1 is an exploded perspective view showing a connector of a first embodiment. FIG. 2 is a perspective view of a terminal fitting as seen obliquely from above. FIG. 3 is a perspective view of the terminal fitting as seen obliquely from below. FIG. 4 is a front view of a terminal connection portion of the terminal fitting as seen from the front. FIG. 5 is a perspective view showing a state in which the terminal fitting is connected to a carrier and unfolded, and a perspective view showing the terminal fitting connected to the carrier after bending. FIG. 6 is a perspective view of an inner housing. FIG. 7 is a perspective view of an outer housing. FIG. 8 is a side cross-sectional view of the connector cut along the left-right and front-rear directions. FIG. 9 is a side cross-sectional view of the connector cut along the up-down and front-rear directions. FIG. 10 is a partially enlarged side cross-sectional view showing a state in which the inner housing is displaced left-right relative to the outer housing. FIG. 11 is a partially enlarged side cross-sectional view showing a state in which the inner housing is displaced up-down relative to the outer housing.

[0010] [Description of Embodiments of the Present Disclosure] First, embodiments of the present disclosure will be listed and described. (1) A terminal fitting having: a terminal connection portion having a rectangular cylindrical shape for connection with a mating terminal; a board connection portion for connection to a circuit board; a displacement allowing portion provided between the terminal connection portion and the board connection portion for allowing relative displacement between the board connection portion and the terminal connection portion; and a gripping portion separate from the displacement allowing portion, provided behind the terminal connection portion, and capable of being gripped from behind.

[0011] (1) The gripping portion of the terminal fitting is separate from the displacement-allowing portion and can be gripped from behind, so that the terminal fitting can be easily accommodated in the cavity of the housing while gripping the gripping portion.

[0012] (2) The terminal fitting according to (1), wherein the gripping portion extends rearward in a cantilevered manner.

[0013] (2) The terminal fitting allows the rear edge of the gripping portion to be pressed from behind, so when inserting the terminal connection portion into the cavity of the housing, it is possible to insert it by pressing the gripping portion from behind.

[0014] (3) The terminal fitting according to (1) or (2), further comprising a rigid portion extending rearward in an L-shape that is connected to the rear ends of adjacent first and second wall portions among the wall portions that form the terminal connection portion, and the grip portion is provided connected to the rear end of the rigid portion.

[0015] (3) The terminal fitting has an L-shaped rigid portion that prevents relative displacement between the gripping portion and the terminal connection portion. Therefore, when the terminal connection portion is inserted into the cavity of the housing, the force applied to the gripping portion can be transmitted to the terminal connection portion without waste via the rigid portion.

[0016] (4) The terminal fitting described in (3), wherein the displacement-allowing portion includes a first elastic portion and a second elastic portion that extend in the front-rear direction and are elastically deformable, the rear end of the first elastic portion is connected to the rear end of the rigid portion, the rear end of the second elastic portion is connected to the board connection portion, and the front ends of the first elastic portion and the second elastic portion are connected to each other.

[0017] (4) In the terminal fitting, the rear end of the first elastic portion is connected to the rear end of the rigid portion rather than the gripping portion, so that even if the gripping portion is bent relative to the rigid portion, the effect is prevented from reaching the displacement-permitting portion.

[0018] (5) The terminal fitting according to (4), wherein the rigid portion and the first elastic portion are disposed within the range of the outline of the outer shape of the terminal connection portion in a front view.

[0019] (5) When viewed from the front or rear, the terminal fitting can be arranged so that the rigid portion and the first elastic portion do not protrude from the terminal connection portion, making it easy to reduce the external dimensions of the terminal fitting.

[0020] (6) A connector comprising: a terminal fitting according to any one of (1) to (5); an inner housing having a plurality of cavities for accommodating the terminal connection portion; and an outer housing to which the board connection portion is connected.

[0021] In the connector of (6), the terminal connecting portion can be inserted into the cavity of the inner housing while holding the grip portion, so that the terminal fittings are easy to handle and assemble.

[0022] [Details of the Embodiments of the Present Disclosure] <Embodiment 1> A connector 100 according to embodiment 1 is attached to one mounting surface of a circuit board S and mates with a mating connector P (see FIG. 8 ) attached to the mounting surface of a circuit board (not shown) provided separately from the circuit board S. As shown in FIG. 1 , the connector 100 includes a plurality of terminal fittings 11, an inner housing 91, an outer housing 92, and a pair of pegs 93. The terminal fittings 11 and the pegs 93 are formed by pressing a conductive metal plate. The inner housing 91 and the outer housing 92 are made of synthetic resin. In the drawings, the "front side," "rear side," "upper side," "lower side," "right side," and "left side" are represented by "F," "B," "U," "D," "R," and "L," respectively. The front-to-rear direction is the direction in which the connector 100 mates with the mating connector P.

[0023] [Configuration of Terminal Fittings] The multiple terminal fittings 11 have the same shape. As shown in Figures 2 and 3, each terminal fitting 11 includes a terminal connection portion 11A, a rigid portion 11B extending rearward in an L-shape from the rear end of the terminal connection portion 11A, a grip portion 11C connected to the rear end of the rigid portion 11B, a displacement-permitting portion 11D, and a board connection portion 11E. The terminal connection portion 11A has a rectangular cylindrical shape extending in the front-rear direction and open on both sides in the front-rear direction. The rectangular cylindrical shape of the terminal connection portion 11A is formed by a first wall portion 11F, a second wall portion 11G, a third wall portion 11H, and a fourth wall portion 11J. The first wall portion 11F is located on the lower side. The second wall portion 11G is located on the left side, and its lower edge is connected to the first wall portion 11F (see Figure 3). The third wall 11H is located on the upper side, and its left edge is connected to the second wall 11G. The fourth wall 11J is located on the right side, and its upper edge is connected to the third wall 11H and its lower edge is connected to the first wall 11F (see FIG. 2). The third wall 11H is provided with a locking portion 11S that protrudes upward.

[0024] A resilient contact piece 11T is provided inside the terminal connection portion 11A (see FIG. 4). The resilient contact piece 11T is connected to a mating terminal T (tab) (see FIG. 8). The tab is inserted into the terminal connection portion 11A from the front, comes into contact with the resilient contact piece 11T, and is connected to the terminal connection portion 11A.

[0025] The rigid portion 11B is formed in an L-shape, extending rearward and flush with the first wall portion 11F and the second wall portion 11G of the wall portions that form the terminal connection portion 11A (see FIG. 3). Specifically, the rigid portion 11B has a first rigid portion 11U that is flush with the first wall portion 11F in the vertical direction of the plate thickness, and a second rigid portion 11V that is flush with the second wall portion 11G in the horizontal direction of the plate thickness. The first rigid portion 11U and the second rigid portion 11V have their long sides joined together to form an L-shape. This allows the rigid portion 11B to maintain its shape without being easily deformed.

[0026] The grip portion 11C is connected to the rear end of the first rigid portion 11U of the rigid portion 11B and extends rearward. In other words, the grip portion 11C is provided rearward of the terminal connection portion 11A. The grip portion 11C is arranged so as to be flush with the first rigid portion 11U of the rigid portion 11B and the first wall portion 11F of the terminal connection portion 11A (see FIG. 3). The grip portion 11C extends rearward in a cantilevered manner. In other words, there is nothing arranged behind the grip portion 11C. Therefore, the grip portion 11C is a portion that can be gripped from behind.

[0027] The displacement-permitting portion 11D includes a first elastic portion 11K and a second elastic portion 11L that extend in the front-rear direction and are elastically deformable. The displacement-permitting portion 11D and the grip portion 11C are separate from each other. The first elastic portion 11K and the second elastic portion 11L are strip-shaped. The first elastic portion 11K and the second elastic portion 11L overlap in the front-rear direction with respect to the rigid portion 11B. Specifically, the first elastic portion 11K is arranged behind the fourth wall portion 11J and spaced apart (see FIG. 2). The thickness direction of the first elastic portion 11K is oriented in the left-right direction. The second elastic portion 11L is arranged behind the third wall portion 11H and spaced apart (see FIG. 2). The thickness direction of the second elastic portion 11L is oriented in the up-down direction. That is, the first elastic portion 11K is elastically deformable in its thickness direction (left-right direction) but not in a direction perpendicular to the thickness direction (up-down direction), and the second elastic portion is elastically deformable in its thickness direction (up-down direction) but not in a direction perpendicular to the thickness direction (left-right direction).

[0028] The rear end of the first elastic portion 11K is connected to the rear end of the rigid portion 11B, which is connected to the first wall portion 11F, so that the thickness direction of the first elastic portion 11K is perpendicular to the rear end of the rigid portion 11B. The front ends of the first elastic portion 11K and the second elastic portion 11L are connected to each other at a right angle in the thickness direction. The front ends of the first elastic portion 11K and the second elastic portion 11L are connected to each other further forward than the rear ends of the first elastic portion 11K and the second elastic portion 11L. The second elastic portion 11L is inclined upward (away from the rigid portion 11B) toward the rear end.

[0029] The board connection portion 11E includes a press-fit portion 11M and a connection body portion 11N. The press-fit portion 11M is strip-shaped and extends in the front-to-rear direction with the plate thickness oriented vertically. A plurality of press-fit blades 11P protruding in the left and right directions are provided on both left and right edges of the press-fit portion 11M. A pair of rectangular portions 11Q protruding in the left and right directions are provided on the rear end of the press-fit portion 11M. The connection body portion 11N is connected to the rear end of the board connection portion 11E and bends upward.

[0030] The front end of the press-fit portion 11M is connected to the rear end of the second elastic portion 11L of the displacement-permitting portion 11D via the connecting plate portion 11R. In other words, the rear end of the second elastic portion 11L is connected to the press-fit portion 11M of the board connection portion 11E via the connecting plate portion 11R. That is, the rear end of the second elastic portion 11L is electrically connected to the board connection portion 11E. In other words, the displacement-permitting portion 11D is provided between the terminal connection portion 11A and the board connection portion 11E. The connecting plate portion 11R extends vertically with its plate thickness aligned in the front-to-rear direction. In a front view, the rigid portion 11B and the first elastic portion 11K are positioned within the outline of the terminal connection portion 11A (see FIG. 4). In this manner, the terminal fitting 11 is formed.

[0031] As shown in Fig. 5, when the terminal fitting 11 is unfolded (left side in Fig. 5), the rigid portion 11B, the first elastic portion 11K, and the second elastic portion 11L are connected so as to be folded back in the front-rear direction. After the bending process is completed (right side in Fig. 5), the terminal fitting 11 is transported with the gripping portion 11C connected to the carrier Ca. Specifically, the terminal fitting 11 is bent so that the gripping portion 11C is perpendicular to the carrier Ca, and the orientation of the terminal fitting 11 is adjusted so that the rigid portion 11B and the board connecting portion 11E are aligned in the direction in which the plate surface of the carrier Ca expands.

[0032] [Configuration of Inner Housing] As shown in Fig. 6, the inner housing 91 includes a block-shaped housing main body 91A, a partition wall 91B extending downward from the housing main body 91A, and a pair of extension portions 91C extending outward in the left-right direction from the lower end of the partition wall 91B. A plurality of cavities 91D are formed in the housing main body 91A, penetrating the housing main body 91A in the front-rear direction. The plurality of cavities 91D are aligned in the left-right direction and are arranged in two upper and lower rows. Each cavity 91D is provided with a lance 91E (see Fig. 9).

[0033] The partition wall 91B is provided so as to protrude downward from the housing main body 91A with its plate thickness oriented in the vertical direction. The partition wall 91B is continuous with the lower ends of the wall portion that separates the two rows of cavities 91D arranged vertically (see FIG. 9). At both left and right ends of the partition wall 91B, left and right partition walls 91G are provided that extend downward from both left and right ends of the housing main body 91A with their plate thickness oriented in the horizontal direction.

[0034] The pair of extensions 91C extend outward in the left-right direction from the left-right partition wall 91G of the partition wall 91B. A convex portion 91F protruding in the up-down direction is provided at the left-right protruding end of each extension 91C. In this manner, the inner housing 91 is formed.

[0035] [Configuration of Outer Housing] As shown in Figure 7, the outer housing 92 has a rectangular ring shape. The outer housing 92 has a pair of upper and lower retaining walls 92A extending in the left-right direction and a pair of left and right cover portions 92B arranged on both left and right sides and connecting the pair of upper and lower retaining walls 92A. A plurality of grooves 92C are formed in the pair of upper and lower retaining walls 92A and aligned in the left-right direction. Each groove 92C is open inward in the up-down direction and rearward.

[0036] The pair of left and right cover portions 92B define an internal storage space C. The storage space C is open inward in the left-right direction and downward. An attachment recess 92D recessed inward in the left-right direction is formed at the outer left-right end of each cover portion 92B. The outer housing 92 has an opening 92E surrounded by a pair of upper and lower retaining wall portions 92A and a pair of left and right cover portions 92B. The outer housing 92 is formed in this manner.

[0037] 1, a pair of pegs 93 are arranged with their plate thicknesses facing the left-right direction. The lower end of each peg 93 is folded outward in the left-right direction. A plurality of locking projections 93A projecting in the front-rear direction are provided on the front and rear edges of the upper part of each peg 93.

[0038] [Example of Connector Assembly Method] Next, an example of a method of assembling the connector 100 will be described. As shown in Figures 8 and 9, first, the terminal fittings 11 are attached to each cavity 91D of the inner housing 91 from the rear. For example, the gripping portion 11C is gripped from the rear with a jig (not shown), and the terminal connection portion 11A is inserted into the cavity 91D from the rear. At this time, the terminal fittings 11 are aligned so that the board connection portion 11E protrudes upward in the upper cavity 91D (see Figure 9). The terminal fittings 11 are aligned so that the board connection portion 11E protrudes downward in the lower cavity 91D (see Figure 9). With the terminal fittings 11 aligned in this way, the terminal connection portions 11A are inserted into each cavity 91D. When the terminal connecting portion 11A reaches the correct position in the cavity 91D, the locking portion 11S moves forward over the lance 91E and locks onto the lance 91E (see FIG. 9 ). This prevents the terminal fitting 11 from coming out of the cavity 91D. In this way, the terminal connecting portion 11A is accommodated in the cavity 91D, and the terminal fitting 11 is attached to the inner housing 91.

[0039] Next, the press-fit portions 11M of the terminal fittings 11 are attached to the grooves 92C of the outer housing 92 from the rear. First, the housing body 91A of the inner housing 91 with the attached terminal fittings 11 is inserted from below into the opening 92E. Then, the press-fit portions 11M are press-fit into the grooves 92C from the rear (see FIG. 9). At this time, the pair of rectangular portions 11Q (see FIG. 8) of each press-fit portion 11M are pressed from the rear with a jig (not shown). In this way, the press-fit portions 11M are press-fit into the grooves 92C, thereby connecting the board connecting portion 11E to the outer housing 92. At this time, the protrusions 91F of the inner housing 91 are accommodated in the accommodation space C formed in the cover portion 92B of the outer housing 92.

[0040] Next, the pegs 93 are attached from above to the attachment recesses 92D formed in the outer housing 92 (see FIG. 8 ), completing the connector 100. In the connector 100, the inner housing 91 and the outer housing 92 are not in direct contact with each other, but are connected via the terminal fittings 11.

[0041] [Operation of Connector] The connector 100 thus formed has the connection body 11N connected by solder to the electrodes provided on one mounting surface of the circuit board S (see FIG. 9). As shown in FIG. 8, a mating connector P is fitted into the connector 100 to connect the mating terminals T and the terminal connection portions 11A. At this time, if the mating connector P is misaligned left / right or up / down relative to the connector 100, the inner housing 91 is displaced relative to the outer housing 92 to follow the misalignment of the mating connector P.

[0042] 10 , when the mating connector P is displaced in the left-right direction, the inner housing 91 is displaced in the left-right direction relative to the outer housing 92. At this time, the first elastic portion 11K of the terminal fitting 11 is elastically deformed, causing the inner housing 91 to be displaced in the left-right direction relative to the outer housing 92.

[0043] For example, if the mating connector P is displaced vertically, as shown in FIG. 11 , the inner housing 91 is displaced vertically relative to the outer housing 92. At this time, the second elastic portion 11L of the terminal fitting 11 is elastically deformed, causing the inner housing 91 to be displaced vertically relative to the outer housing 92. In this manner, the displacement-permitting portion 11D permits relative displacement between the board connection portion 11E and the terminal connection portion 11A. The outer shape of the terminal connection portion 11A is slightly smaller than the inner shape of the cavity 91D. Therefore, when the inner housing 91 is displaced horizontally or vertically relative to the outer housing 92, the terminal connection portion 11A can tilt slightly relative to the cavity 91D. This facilitates flexible connection of the mating connector P with the mating terminal T.

[0044] Next, the effects of this configuration will be illustrated. The terminal fitting 11 has a rectangular cylindrical terminal connection portion 11A that connects to the mating terminal T, a board connection portion 11E that connects to the circuit board S, a displacement-permitting portion 11D that is provided between the terminal connection portion 11A and the board connection portion 11E and that allows relative displacement between the board connection portion 11E and the terminal connection portion 11A, and a gripping portion 11C that is separate from the displacement-permitting portion 11D and is provided behind the terminal connection portion 11A so that it can be gripped from behind.

[0045] With this configuration, the gripping portion 11C is a separate part from the displacement-permitting portion 11D and can be gripped from behind, making it easy to accommodate the terminal fitting 11 in the cavity 91D of the inner housing 91 while gripping the gripping portion 11C.

[0046] The grip portion 11C extends rearward in a cantilevered manner. With this configuration, the rear edge of the grip portion 11C can be pressed from behind, so that when inserting the terminal connection portion 11A into the cavity 91D of the inner housing 91, the grip portion 11C can be pressed from behind to insert the terminal connection portion 11A into the cavity 91D of the inner housing 91.

[0047] The terminal fitting 11 has an L-shaped rigid portion 11B that extends rearward and connects to the rear ends of the adjacent first and second wall portions 11F and 11G that form the terminal connection portion 11A. The grip portion 11C is provided so as to connect to the rear end of the rigid portion 11B. With this configuration, the L-shaped rigid portion 11B prevents relative displacement between the grip portion 11C and the terminal connection portion 11A. Therefore, when the terminal connection portion 11A is inserted into the cavity 91D of the inner housing 91, the force applied to the grip portion 11C can be efficiently transmitted to the terminal connection portion 11A via the rigid portion 11B.

[0048] The displacement-allowing portion 11D includes a first elastic portion 11K and a second elastic portion 11L that extend in the front-rear direction and are elastically deformable. The rear end of the first elastic portion 11K is connected to the rear end of the rigid portion 11B, and the rear end of the second elastic portion 11L is electrically connected to the board connection portion 11E, and the front ends of the first elastic portion 11K and the second elastic portion 11L are connected to each other. With this configuration, the rear end of the first elastic portion 11K is connected to the rear end of the rigid portion 11B rather than the gripping portion 11C. Therefore, even if the gripping portion 11C bends relative to the rigid portion 11B, the bending effect will not affect the displacement-allowing portion 11D.

[0049] In a front view from the front, the rigid portion 11B and the first elastic portion 11K are arranged within the range of the outline of the external shape of the terminal connection portion 11A. With this configuration, when viewed from the front or rear, the rigid portion 11B and the first elastic portion 11K can be arranged so as not to protrude from the terminal connection portion 11A, making it easy to reduce the external shape of the terminal fitting 11.

[0050] The connector 100 includes a terminal fitting 11, an inner housing 91 having a plurality of cavities 91D for accommodating terminal connecting portions 11A, and an outer housing 92 to which a board connecting portion 11E is connected. With this configuration, the terminal connecting portions 11A can be inserted into the cavities 91D of the inner housing 91 while gripping the gripping portion 11C, making the terminal fitting 11 easy to handle and assemble.

[0051] <Other Embodiments> The embodiments disclosed herein should be considered to be illustrative in all respects and not restrictive. The scope of the present invention is not limited to the embodiments disclosed herein, but is defined by the claims, and is intended to include all modifications within the meaning and scope of the claims.

[0052] Unlike the first embodiment, the press-fit portion of the board connection portion and the connection body may extend linearly in the front-rear direction, and the connection body may be inserted into a through hole formed in the circuit board. In this case, the cavities in the inner housing are arranged in the left-right direction and are formed in three or more rows, one above the other, and the number of holding walls in the outer housing is set to match the number of rows of cavities.

[0053] Unlike the first embodiment, the first elastic portion and the second elastic portion may have the same dimensions in the left-right and up-down directions in the cross-sectional shape perpendicular to the front-rear direction (i.e., a square shape).

[0054] 11: Terminal fitting 11A: Terminal connection portion 11B: Rigid portion 11C: Grip portion 11D: Displacement-allowing portion 11E: Board connection portion 11F: First wall portion 11G: Second wall portion 11H: Third wall portion 11J: Fourth wall portion 11K: First elastic portion 11L: Second elastic portion 11M: Press-fit portion 11N: Connection main body portion 11P: Press-fit blade 11Q: Rectangular portion 11R: Connecting plate portion 11S: Locking portion 11T: Elastic contact piece 11U: First rigid portion 11V: Second rigid portion 91: Inner housing 91A: Housing main body 91B: Partition wall 91C: Extension portion 91D: Cavity 91E: Lance 91F: Convex portion 91G: Left-right partition wall 92: Outer housing 92A: Holding wall portion 92B: Cover portion 92C: Groove portion 92D: Mounting recess 92E: Opening 93: Peg 93A: Locking convex portion 100: Connector C: Storage space Ca: Carrier P: Mating connector S: Circuit board T: Mating terminal

Claims

1. A terminal fitting having: a terminal connection portion in the shape of a rectangular tube for connecting to a mating terminal; a board connection portion for connecting to a circuit board; a displacement allowing portion provided between the terminal connection portion and the board connection portion for allowing relative displacement between the board connection portion and the terminal connection portion; and a gripping portion separate from the displacement allowing portion provided behind the terminal connection portion so as to be grippable from behind.

2. The terminal fitting according to claim 1, wherein said gripping portion extends rearward in a cantilevered manner.

3. A terminal fitting as described in claim 2, which has a rigid portion extending rearward in an L-shape that is connected to the rear ends of adjacent first and second wall portions of the wall portions that form the terminal connection portion, and wherein the grip portion is provided connected to the rear end of the rigid portion.

4. A terminal fitting as described in claim 3, wherein the displacement-allowing portion comprises a first elastic portion and a second elastic portion that extend in the front-to-rear direction and are elastically deformable, the rear end of the first elastic portion is continuous with the rear end of the rigid portion, the rear end of the second elastic portion is continuous with the board connection portion, and the front ends of the first elastic portion and the second elastic portion are connected to each other.

5. The terminal fitting according to claim 4, wherein, in a front view from the front, the rigid portion and the first elastic portion are disposed within the range of the outline of the outer shape of the terminal connection portion.

6. A connector comprising: a terminal fitting according to any one of claims 1 to 5; an inner housing having a plurality of cavities for accommodating the terminal connection portion; and an outer housing to which the board connection portion is connected.

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