Terminal device

Abstract

The invention provides a terminal device capable of simplifying the connection work and the connection structure of an electric wire. A connector (10), which is a terminal device, is provided with: a first piece section (42, 42A, 42B) and a second piece section (43, 43a, 43b) that are formed from a conductive plate material and are integrally connected so as to be openable and closable via a folded-back section (41, 41A, 41B); and holding sections (27, 27A, 27B) that maintain the closed state of the first piece section (42, 42A, 43B) and the second piece section (43, 43a, 43b) that are closed by sandwiching the electric wire (90) therebetween.

Description

Technical Field

[0001] The present invention relates to a terminal device. Background Art

[0002] Patent document 1 discloses a connector as a terminal device, which includes a housing, a substrate, and a spring member. The substrate and the spring member are accommodated in the housing. An electric wire is inserted between the substrate and the spring member. The electric wire is connected to the substrate. The spring member presses the electric wire toward the substrate side, and uses its own force to ensure the contact state between the electric wire and the substrate.

[0003] Patent document 2 discloses a connector as a terminal device, which includes a connector terminal and a housing. The connector terminal includes a wire connecting portion connected to the wire and a cover portion mounted on the wire connecting portion. The cover portion has a pressing portion, which clamps the wire between the pressing portion and the wire connecting portion when the pressing portion is locked in the wire connecting portion. Prior art literature Patent Literature

[0004] Patent Document 1: Japanese Patent Application Publication No. 2022-10651 Patent Document 2: Japanese Patent Application Publication No. 2019-079674 Summary of the invention Problems to be solved by the invention

[0005] In the case of Patent Document 1, since the contact load between the electric wire and the substrate depends on the urging force of the spring member, there is a problem that it is difficult to stably maintain the connection state between the electric wire and the substrate. In the case of Patent Document 2, although there is an advantage that when connecting the connector terminal and the wire, a crimping process is not required, which can simplify the connection operation, since the connector terminal separates the wire connection part and the cover part, it may lead to an increase in processing hours, etc., and there is room for further improvement.

[0006] Therefore, an object of the present invention is to provide a terminal device that can simplify the connection work and connection structure of electric wires. Solutions to Solve Problems

[0007] The terminal device of the present invention comprises: a first piece and a second piece, which are formed of conductive plates and connected to each other in an openable and closable manner via a folded portion; and a retaining portion for maintaining the closed state of the first piece and the second piece with the electric wire sandwiched therebetween. Effects of the Invention

[0008] According to the present invention, a terminal device capable of simplifying the connection work and connection structure of electric wires can be provided. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1This is a cross-sectional view showing a connector as a terminal device in Embodiment 1 of the present invention. Figure 2 It is also an exploded perspective view showing the cover and the housing body. Figure 3 This is also a perspective view showing terminal parts. Figure 4 It is also an exploded perspective view showing the terminal parts and the electric wires in an opened state. Figure 5 It is a perspective view showing a terminal component in Embodiment 2 of the present invention. Figure 6 Also from Figure 5 The three-dimensional views of the terminal parts are shown from different angles. Figure 7 This is also a cross-sectional view showing a connector as a terminal device. Figure 8 It is a perspective view showing the terminal component in the third embodiment of the present locking. Fig. 9 Also from Figure 8 The three-dimensional views of the terminal parts are shown from different angles. Fig.10 This is also a cross-sectional view showing a connector as a terminal device. Fig.11 It is also a cross-sectional view showing the contact state between the contact portion and the tab. DETAILED DESCRIPTION

[0010] [Description of Embodiments of the Invention] First, embodiments of the present invention will be described by way of examples. (1) The terminal device of the present invention comprises: a first piece and a second piece, which are formed of conductive plates and are connected to each other in an openable and closable manner via a folded portion; and a retaining portion that maintains the closed state of the first piece and the second piece with the electric wire sandwiched therebetween.

[0011] The structure does not require a crimping process when the first sheet and the second sheet are connected to the electric wire, so the connection operation can be simplified. In addition, since the first sheet and the second sheet are integrated via the folded portion, the connection structure with the electric wire can also be simplified.

[0012] (2) Preferably, the first sheet portion has a first bent portion bent into a concave shape relative to the second sheet portion when viewed from a direction intersecting the length direction of the electric wire, and the second sheet portion has a second bent portion bent into a convex shape relative to the first sheet portion when viewed from a direction intersecting the length direction of the electric wire, and the first bent portion and the second bent portion are formed to fit together in a state of sandwiching the electric wire.

[0013] The above structure can bend the electric wire into a concavo-convex shape and arrange it between the first bending part and the second bending part. Therefore, it is possible to reliably prevent the electric wire from falling out from between the first bending part and the second bending part.

[0014] (3) Preferably, the terminal part comprises the folded portion, the first piece and the second piece, the terminal part is in a shape extending from the front end to the rear end in the front-to-rear direction which is the length direction of the electric wire, the folded portion is formed at the front end of the terminal part, the terminal part has an elastically deformable contact portion which contacts the terminal part on the other side at the front end portion including the front end, and has an electric wire fixing portion at the rear end portion including the rear end, the electric wire fixing portion clamps the electric wire at the rear end portions of each of the first piece and the second piece.

[0015] The above structure can simply form the overall shape of the terminal part by folding back the first piece and the second piece via the folding portion. In particular, the above structure can easily arrange the wire inside the wire fixing portion because the rear of the wire fixing portion is open.

[0016] (4) Preferably, the terminal part comprises the folded portion, the first piece and the second piece, the terminal part is in a shape extending from the front end to the rear end in the front-to-rear direction which is the length direction of the electric wire, the folded portion is formed at the rear end of the terminal part, the terminal part has an elastically deformable contact portion which contacts the terminal part on the other side at the front end portion including the front end, and has an electric wire fixing portion at the rear end portion including the rear end, the electric wire fixing portion clamps the electric wire at the respective rear ends of the first piece and the second piece, the electric wire fixing portion has an electric wire insertion hole, the electric wire insertion hole passes through the folded portion to allow the electric wire to be inserted.

[0017] The above structure can simply form the overall shape of the terminal part by folding back the first piece and the second piece via the folding portion. The wire can be arranged inside the wire fixing portion through the wire insertion hole. In particular, the above structure can increase the degree of freedom of the shape of the contact portion. In the case of the above configurations (3) and (4), the “front end portion” refers to a portion on the front side of the wire fixing portion, and the “rear end portion” refers to a portion on the rear side of the contact portion.

[0018] (5) Preferably, the terminal part comprises the folded portion, the first piece and the second piece, and the terminal device further comprises a shell for accommodating the terminal part, the shell having a supporting surface for supporting the terminal part, and the retaining portion is formed in a position of the shell opposite to the supporting surface so as to sandwich the first piece and the second piece between the supporting surface.

[0019] In the above configuration, since the holding portion having a shape sandwiching the first sheet portion and the second sheet portion is formed at a position facing the support surface, the first sheet portion and the second sheet portion can be maintained in a closed state, and thus the structure of the holding portion can be simplified.

[0020] (6) Preferably, the terminal part comprises the folded portion, the first piece and the second piece, and the terminal device further comprises a shell for accommodating the terminal part, the shell having a supporting surface for supporting the terminal part, and the retaining portion is formed at a position of the shell opposite to the supporting surface as a convex shape arranged on the inner side of the second bent portion of the second piece in a manner that the first piece and the second piece are sandwiched between the supporting surface.

[0021] The above structure can maintain the bent shape of the second bent portion by the convex holding portion arranged inside the second bent portion.

[0022] (7) Preferably, the terminal part comprises the folded portion, the first sheet portion and the second sheet portion, and the terminal device further comprises a shell for accommodating the terminal part, the shell having a supporting surface for supporting the terminal part, the retaining portion is formed at a position of the shell opposite to the supporting surface in a shape that sandwiches the first sheet portion and the second sheet portion between the supporting surface, the supporting surface having a recess, and the first bent portion of the first sheet portion is embedded in the recess.

[0023] The above structure can restrict the displacement of the terminal fitting relative to the housing by the first bent portion fitted into the recessed portion of the support surface.

[0024] [Details of Embodiments of the Invention] Specific examples of the present invention are described below with reference to the drawings. The present invention is not limited to the examples, but is indicated by the claims, and is intended to include all modifications within the meaning and scope equivalent to the claims.

[0025] <Implementation Method 1> Embodiment 1 of the present invention illustrates a connector 10 as a terminal device. Figure 1 As shown in FIG. 1 , the connector 10 includes a housing 20 and a terminal part 40. The terminal part 40 is electrically and mechanically connected to the terminal end of the electric wire 90. In the following description, the front-rear direction is Figure 1 The left side is the front side, Figure 1 The right side of the wire 90 is the rear side. The front side of the terminal end of the wire 90 is the front side. Figure 1 The vertical direction is based on Figure 1 The paper thickness direction is taken as the reference. Figure 1 to Figure 4In the drawings, the front-rear direction is indicated by X, the left-right direction is indicated by Y, and the up-down direction is indicated by Z. The up-down direction is not necessarily limited to the direction of gravity when the connector 10 is mounted.

[0026] (case) The housing 20 is made of synthetic resin and has a rectangular shape when viewed from above, and has a flat outer shape with a small vertical dimension. Figure 2 As shown, the housing 20 includes a housing body 21 and a cover 22. The housing body 21 has a plurality of cavities 23 arranged in the left-right direction. Each cavity 23 is in the shape of a groove extending in the front-to-back direction in the housing body 21 and is open at the top. The bottom surface of each cavity 23 of the housing body 21 is configured as a supporting surface 24 for supporting the terminal part 40. The supporting surface 24 of each cavity 23 has a recessed portion 25 that is lowered one level midway in the front-to-back direction. The recessed portion 25 is concave in a side section view and is formed over the entire width of the cavity 23.

[0027] The cover 22 covers the shell body 21 from above, closing the top of each cavity 23. The cover 22 and the shell body 21 are locked to each other by a locking portion not shown in the figure. The cover 22 has a locking portion 26 protrudingly provided on the upper surface. The locking portion 26 locks the other side shell not shown in the figure, and keeps the shell 20 and the other side shell in a mating state. In addition, the cover 22 has a plurality of retaining portions 27 protrudingly provided on the lower surface. Each retaining portion 27 is formed in each cavity 23. Each retaining portion 27 is prism-shaped and is arranged opposite to each recess 25. Each retaining portion 27 has a chamfered inclined portion 28 at the front lower corner where the front end face and the lower end face intersect.

[0028] (Terminal parts) The terminal part 40 is formed by punching a conductive metal plate and then bending it. The terminal part 40 is in the shape of a plate extending from the front end to the rear end and having a certain width in the left and right directions. Figure 3 As shown, the terminal fitting 40 is integrally constituted by a bent folded portion 41 at the front end, a first piece 42 extending rearward from the lower end of the folded portion 41 , and a second piece 43 extending rearward from the upper end of the folded portion 41 .

[0029] like Figure 3 and Figure 4 As shown, the first piece 42 and the second piece 43 are connected to each other in a manner that they are close to or separated from each other, with the folded portion 41 as a fulcrum so that they can be opened and closed. In addition, the following description of the structure of the terminal part 40 is based on the situation where the first piece 42 and the second piece 43 are in a closed state ( Figure 1 and Figure 3 The situation shown) is taken as the benchmark.

[0030] The first sheet portion 42 is formed by a first front sheet portion 44, a first rear sheet portion 45, and a first bent portion 46 which is concave in side view. The first front sheet portion 44 is arranged along the front-to-back direction at the front end portion including the folded portion 41, and the first rear sheet portion 45 is arranged along the front-to-back direction at the rear end portion including the free end as the rear end. The first bent portion 46 is bent downward between the first front sheet portion 44 and the first rear sheet portion 45. Figure 4 As shown, the first rear sheet 45 has a groove 47 on the upper surface facing the second sheet 43. The groove 47 extends over the entire length of the first rear sheet 45 in the front-rear direction at the left and right center of the upper surface of the first rear sheet 45 and has a curved cross section.

[0031] The first bent portion 46 is formed by a bottom surface portion, a front surface portion, and a rear surface portion, wherein the bottom surface portion is arranged along the front-to-back direction, the front surface portion is inclined obliquely forward and upward from the front end of the bottom surface portion to the rear end of the first front side piece 44, and the rear surface portion is erected along the up-down direction from the rear end of the bottom surface portion to the front end of the first rear side piece 45. In addition, the recessed portion 25 of the housing 20 is also formed with a bottom surface portion, a front surface portion, and a rear surface portion having a shape corresponding to the first bent portion 46.

[0032] The second sheet portion 43 is formed by a second front side sheet portion 48, a second rear side sheet portion 49 and a second bent portion 51 which is concave when viewed from the side. The second front side sheet portion 48 bulges out in a mountain shape at the front end portion including the folded portion 41 when viewed from the side, and the second rear side sheet portion 49 is arranged along the front-to-back direction at the rear end portion including the free end serving as the rear end, and the second bent portion 51 is bent downwardly between the second front side sheet portion 48 and the second rear side sheet portion 49.

[0033] The second bent portion 51 has a shape corresponding to the first bent portion 46. The second bent portion 51 is bent into a convex shape relative to the first sheet portion 42 in a side view so as to be close to the first sheet portion 42. On the other hand, the first bent portion 46 is bent into a concave shape relative to the second sheet portion 43 so as to be away from the second sheet portion 43 in a side view. Figure 1 As shown, the first bent portion 46 and the second bent portion 51 are fitted to each other with the conductor 91 of the electric wire 90 interposed therebetween.

[0034] like Figure 1 and Figure 4 As shown, the electric wire 90 is a covered electric wire in which the outer periphery of a single core wire as a conductor 91 is surrounded by an insulating coating 92. The conductor 91 is exposed at the terminal end (terminal end, front end) of the electric wire 90 by removing the coating 92.

[0035] like Figure 1As shown in FIG. 1 , the second bent portion 51 and the second rear side sheet 49 are arranged to be parallel to and opposite to the first bent portion 46 and the second rear side sheet 49, respectively, with a gap therebetween for holding the terminal portion of the electric wire 90. Here, the first rear side sheet 45, the first bent portion 46, the second rear side sheet 49, and the second bent portion 51 constitute an electric wire fixing portion 53 that fixes the electric wire 90 by the holding force of the holding portion 27. Specifically, the electric wire fixing portion 53 holds the conductor 91 (hereinafter referred to as "the conductor 91 of the electric wire 90") exposed at the terminal portion of the electric wire 90 between the first bent portion 46 and the second bent portion 51, and holds the coating layer 92 (hereinafter referred to as "the coating layer 92 of the electric wire 90") at the terminal portion of the electric wire 90 between the first rear side sheet 45 and the second rear side sheet 49.

[0036] The second front sheet portion 48 has an apex 54 at the rear end side and is formed by a portion gently curved from the folded portion 41 to the apex 54 , a portion steeply downwardly inclined from the apex 54 , and a portion parallel to and opposite to the first front sheet portion 44 .

[0037] The front end of the terminal part 40 is configured as an elastically deformable contact portion 52. The contact portion 52 has a flexure space 55 open in the left-right direction between the folded portion 41, the first front side piece 44, and the second front side piece 48. The flexure space 55 is a space that allows the second front side piece 48 to flex.

[0038] (Assembly method and function) During assembly, first, the housing body 21 is clamped and positioned. Next, the terminal part 40 is inserted into the cavity 23 of the housing body 21 from above. Then, the first front side piece 44 and the first rear side piece 45 are arranged along the support surface 24 of the housing body 21, and the terminal part 40 is placed on the support surface 24. In addition, the first bent portion 46 is embedded in the inner side of the recessed portion 25 of the housing body 21, and the terminal part 40 is positioned relative to the housing body 21.

[0039] The terminal part 40 is provided in the housing body 21 in an open state so that the space between the rear ends of the first piece 42 and the second piece 43 is expanded rearward (see Figure 4 ). In this state, the electric wire 90 is inserted from the rear between the first sheet 42 and the second sheet 43 through the respective rear ends. The electric wire 90 is positioned along the groove 47 of the first rear side sheet 45 and arranged between the first sheet 42 and the second sheet 43. The conductor 91 of the electric wire 90 is arranged from between the first bent portion 46 and the second bent portion 51 to between the first front side sheet 44 and the second rear side sheet 49. The coating 92 of the electric wire 90 is supported by the groove 47 and arranged between the first rear side sheet 45 and the second rear side sheet 49. The insertion operation of the electric wire 90 can be performed by an automatic machine.

[0040] Next, the cover 22 is mounted on the housing body 21 from above. During the mounting process of the cover 22, each holding portion 27 is embedded in the inner side of the second bent portion 51 of each terminal part 40. Then, the bottom surface portion of the second bent portion 51 of the terminal part 40 is pressed by the holding portion 27, and the second piece 43 tilts with the folded portion 41 as a fulcrum so as to approach the first piece 42. That is, the terminal part 40 is shifted toward the closed state.

[0041] When the cover 22 is locked to the housing body 21 and properly installed, Figure 1 As shown, the terminal part 40 reaches the closed state, and the holding portion 27 is maintained in the pressing state of the second bent portion 51. The conductor 91 of the electric wire 90 is bent along the bending shape between the first bent portion 46 and the second bent portion 51, and is bent into a concave-convex shape and firmly held between the first sheet 42 and the second sheet 43. The first sheet 42 and the second sheet 43 are clamped and held between the bottom surface portion of the recess 25 of the housing body 21 and the holding portion 27 of the cover 22. Thus, the closed state of the terminal part 40 is also maintained. In addition, by configuring the holding portion 27 on the inner side of the second bent portion 51 and facing the front surface portion of the second bent portion 51, and further, the first bent portion 46 is configured on the inner side of the recess 25 and facing the front surface portion of the recess 25, the terminal part 40 is reliably restricted from falling off from the cavity 23. Furthermore, when the terminal fitting 40 is not inserted to the proper position of the cavity 23 , the inclined surface 28 of the holding portion 27 presses the front surface of the second bent portion 51 , and the terminal fitting 40 can be moved forward to the proper position.

[0042] Then, the unillustrated counterpart housing is engaged with the housing 20, and the tab 70 of the counterpart terminal part is inserted from the front into the cavity 23 of the housing 20. The tab 70 slides on the inclined portion on the front side of the second front side piece 48, so that the contact portion 52 can be elastically displaced toward the flexure space 55. When the counterpart housing is properly engaged with the housing 20, the tab 70 contacts the vertex 54 of the second front side piece 48, and the terminal part 40 and the counterpart terminal part are properly connected.

[0043] As described above, according to the first embodiment, since the closed state of the terminal part 40 is maintained in a state where the electric wire 90 is sandwiched between the first piece 42 and the second piece 43, a crimping process is not required when the terminal part 40 and the electric wire 90 are connected, and the connection operation can be simplified. Furthermore, since the first piece 42 and the second piece 43 are integrated via the folded portion 41, the connection structure with the electric wire 90 can also be simplified.

[0044] Furthermore, when the terminal fitting 40 is in the closed state, the electric wire 90 is bent in a concave-convex shape and held between the first bent portion 46 and the second bent portion 51 , so that the electric wire 90 can be reliably prevented from falling out from between the first bent portion 46 and the second bent portion 51 .

[0045] In addition, the overall shape of the terminal component 40 can be simply formed by folding the first piece 42 and the second piece 43 via the folding portion 41. In particular, in the first embodiment, since the rear of the wire fixing portion 53 is open between the rear ends of the first piece 42 and the second piece 43, the wire 90 can be easily arranged inside the wire fixing portion 53.

[0046] Furthermore, as the cover 22 is attached to the housing body 21 , the holding portions 27 press the first piece portions 42 of the terminal fittings 40 together, and the terminal fittings 40 are maintained in a closed state. Therefore, the structure of the holding portions 27 can be simplified.

[0047] Furthermore, when the terminal fitting 40 is placed on the support surface 24 of the housing body 21 , the first bent portion 46 fits into the recessed portion 25 , thereby restricting the positional displacement of the terminal fitting 40 relative to the housing 20 .

[0048] Furthermore, when the cover 22 is mounted on the housing body 21, the holding portion 27 is embedded in the second bent portion 51, thereby more reliably restricting the displacement of the terminal component 40 relative to the housing 20. In addition, the bent shape of the second bent portion 51 is reinforced by the holding portion 27.

[0049] <Implementation Method 2> The terminal part 40A of the second embodiment of the present invention is formed integrally by bending a conductive metal plate, as in the terminal part 40 of the first embodiment. Figure 5 and Figure 6 As shown, the terminal part 40A has a folded portion 41A and a first piece 42A and a second piece 43A connected in an openable and closable manner via the folded portion 41A. In addition, the terminal part 40A has a contact portion 52A at the front end including the front end, a wire fixing portion 53A at the rear end including the rear end, and a first bent portion 46A and a second bent portion 51A at the front of the wire fixing portion 53A, similarly to the terminal part 40 of the first embodiment.

[0050] On the other hand, the terminal part 40A is different from the terminal part 40 of the first embodiment in that it has a folded portion 41A at the rear end of the wire fixing portion 53A and has an elastic portion 56A and a guide portion 57A at the contact portion 52A. Figure 7 As shown in FIG. 1 , housing 20A is the same as housing 20 in the first embodiment.

[0051] The folded portion 41A is curved. The first rear side piece 45A and the second rear side piece 49A extend rearward from the lower end and the upper end of the folded portion 41A, respectively, and are arranged parallel to each other. The first rear side piece 45A has a groove 47A on the upper surface. Figure 6As shown, the folded portion 41A has a wire insertion hole 58A penetrating in the front-rear direction. The wire insertion hole 58A is opened in the folded portion 41A in a rectangular shape when viewed from behind. The opening width of the wire insertion hole 58A in the left-right direction corresponds to the outer diameter of the wire 90.

[0052] The contact portion 52A has a first front side piece 44A extending in the front-rear direction. The elastic portion 56A is folded back from the front end of the first front side piece 44A and bulges in a mountain shape when viewed from the side. Figure 7 As shown, the elastic portion 56A has a vertex 54A on the rear end side, extends obliquely downward and rearward from the vertex 54A, and has a free end 59A in contact with the first front side sheet 44A at the lower end in the extending direction. The elastic portion 56A, except for the free end 59A, has the same shape as the second front side sheet 48 of the first embodiment. The first bent portion 46A is formed in the same shape as the first bent portion 46 of the first embodiment between the rear end of the first front side sheet 44A and the front end of the first rear side sheet 45A.

[0053] The guide portion 57A is in the shape of a strip extending in the front-to-back direction, and is arranged above the elastic portion 56A and opposite to the elastic portion 56A. The guide portion 57A has a receiving portion 61A which is lowered one step downward in the middle of the front-to-back direction. The receiving portion 61A is arranged in a manner extending in the front-to-back direction. The second bent portion 51A is formed in the same shape as the second bent portion 51 of the first embodiment between the rear end of the guide portion 57A and the front end of the second rear side sheet portion 49A.

[0054] When assembling the electric wire 90, the electric wire 90 is inserted into the inner side of the electric wire fixing portion 53A from the rear through the electric wire insertion hole 58A in a state where the first sheet 42A and the second sheet 43A are opened via the folding portion 41A. The electric wire 90 is inserted into the electric wire insertion hole 58A in a positioned state. The conductor 91 of the electric wire 90 can reach the first front side sheet 44A from the first rear side sheet 45A via the first bending portion 46A. Then, the conductor 91 of the electric wire 90 is maintained in a bent state between the first bending portion 46A and the second bending portion 51A by reaching the closed state through the terminal part 40A. The second bending portion 51A is pressed toward the support surface 24A side by the holding portion 27A, thereby maintaining the closed state of the terminal part 40A, and the electric wire 90 is reliably held in the electric wire fixing portion 53A. This is the same as in the first embodiment.

[0055] When the housing 20A is mated with the housing on the other side, the tab 70 of the terminal part on the other side is inserted between the guide portion 57A and the elastic portion 56A. The elastic portion 56A elastically deforms while the free end portion 59A moves backward along the first front side piece 44A, so that the tab 70 contacts the apex 54A. The tab 70 maintains the insertion posture along the front-back direction by causing the elastic restoring force received from the elastic portion 56A to act on the receiving portion 61A.

[0056] According to the second embodiment, the tab 70 of the mating terminal is guided by the guide portion 57A and smoothly inserted into the inner side of the contact portion 52A and stably held between the receiving portion 61A and the elastic portion 56A. As a result, the connection reliability between the terminal component 40A and the mating terminal component can be improved.

[0057] <Implementation Method 3> The terminal part 40B of the third embodiment of the present invention is similar to the terminal part 40 of the first embodiment, and is integrally formed by bending a conductive metal plate. Figure 8 and Fig. 9 As shown, the terminal part 40B has a folded portion 41B and a first piece 42B and a second piece 43B connected in an openable and closable manner via the folded portion 41B. In addition, the terminal part 40B has a contact portion 52B at the front end including the front end, a wire fixing portion 53B at the rear end including the rear end, and a first bent portion 46B and a second bent portion 51B at the front of the wire fixing portion 53B, similarly to the terminal part 40A of the second embodiment. In addition, the terminal part 40B has a curved folded portion 41B at the rear end of the wire fixing portion 53B.

[0058] The folded portion 41B has a larger curvature radius than the folded portion 41A of Embodiment 2. The wire insertion hole 58B is widely opened from the folded portion 41B to the first rear side piece 45B and the second rear side piece 49B.

[0059] On the other hand, the terminal part 40B of the third embodiment is different from the terminal parts 40 and 40A of the first and second embodiments in that the contact part 52B is formed by the first front side piece 44B, the side part 62B and the guide part 57B. Fig.10 As shown, the housing 20B has a holding portion 27B that presses the second bent portion 51B, similarly to the housing 20 of the first embodiment.

[0060] The first front side sheet 44B has a strip shape along the front-rear direction. The rear end of the first front side sheet 44B is connected to the front end of the first bent portion 46B. The guide portion 57B is also in the shape of a strip along the front-to-back direction, and is arranged above the first front side sheet 44B and opposite to the first front side sheet 44B. The first front side sheet 44B and the guide portion 57B have a pair of ribs 63B extending in the front-to-back direction on the opposing surfaces of both sides. Each rib 63B is formed by stamping at the central portion of the first front side sheet 44B and the guide portion 57B in the left-right direction.

[0061] The side portion 62B is provided between one end of the first front side sheet 44B in the left-right direction and one end of the guide portion 57B in the left-right direction. The side portion 62B is in the shape of a wall along the up-down direction and has the same front-to-back length as the first front side sheet 44B and the guide portion 57B. In the contact portion 52B, the other end side in the left-right direction opposite to the side portion 62B is open as an open portion 64B.

[0062] When the housing 20B is fitted with the other housing, the protruding piece 70 of the other terminal part is inserted between the guide portion 57B and the first front side piece 44B. Fig.11 As shown, the tab 70 contacts the ribs 63B, so that the open portion 64B expands in the vertical direction, and the side 62B and the guide 57B are elastically deformed outward. Here, the tab 70 is subjected to the elastic reaction force of the side 62B and the guide 57B, so it can contact the ribs 63B with an appropriate contact load.

[0063] [Other embodiments of the present invention] The embodiments disclosed this time are to be considered in all respects as illustrative and non-restrictive, and other embodiments described below are also included in the present invention. The wire fixing portion may also have a locking shape such as a biting protrusion or a corrugated process for locking the coating layer on the surface facing the coating layer of the wire. This can more reliably prevent the wire from falling off the wire fixing portion. The electric wire may be arranged in a manner that only the conductor is arranged inside the electric wire fixing portion. In this case, in Embodiments 2 and 3, only the conductor of the electric wire needs to be inserted into the electric wire insertion hole, and the opening width of the electric wire insertion hole in the left and right directions can be reduced. As a result, it is easy to ensure the strength of the folded portion. The housing may not have a cover, and a holding body may be attached to the housing body. In this case, the holding portion is preferably formed on the holding body. The holding portion may not be formed on the housing, but may be configured as a binding member such as a binding band, an adhesive tape, or a shrink tube. The retaining portion may not be formed on the housing, but may be provided on the terminal part by a locking portion formed on the first sheet and a locked portion formed on the second sheet. In this case, the first sheet and the second sheet are maintained in a closed state by the locking portion being locked on the locked portion. The conductor of the electric wire may be a stranded wire formed by twisting a plurality of wires. The rib portion of the third embodiment may be formed on only one of the first front side sheet portion and the guide portion. Description of Reference Numerals

[0064] 10: Connector (terminal device) 20, 20A, 20B: Shell 21: Shell body 22: Cover 23: Cavity 24, 24A: Support surface 25: Concave 26: Locking part 27, 27A, 27B: Holding part 28: Bevel face 40, 40A, 40B: Terminal parts 41, 41A, 41B: Folding section 42, 42A, 42B: Part 1 43, 43a, 43b: Part 2 44, 44A, 44B: 1st front side panel 45, 45A, 45B: 1st rear side panel 46, 46A, 46B: 1st bending portion 47, 47A: Groove 48: 2nd front side panel 49, 49A, 49B: Second rear side panel 51, 51A, 51B: Second bending portion 52, 52A, 52B: Contact part 53, 53A, 53B: Wire fixing part 54, 54A: Vertex 55: Flexing Space 56A: Elastic part 57A, 57B: Guide section 58A, 58B: Wire insertion holes 59A: Free end 61A: Bearing part 62B: Side 63B: Muscles 64B: Open Department 70: Tab 90: Wire 91: Conductor 92: Cladding

Claims

1. A terminal device comprising: The first sheet and the second sheet are formed of conductive plates and are connected to each other in an openable and closable manner via a folded portion; and, The holding portion maintains a closed state of the first piece portion and the second piece portion that are closed with the electric wire sandwiched therebetween.

2. The terminal device according to claim 1, wherein: The first sheet portion has a first bent portion bent into a concave shape relative to the second sheet portion when viewed from a direction intersecting the longitudinal direction of the electric wire. The second sheet portion has a second bent portion that is bent convexly relative to the first sheet portion when viewed from a direction intersecting the longitudinal direction of the electric wire. The first bent portion and the second bent portion are formed to fit each other in a state of sandwiching the electric wire.

3. The terminal device according to claim 1 or claim 2, wherein: The terminal component includes the folded portion, the first piece portion, and the second piece portion. The terminal part has a shape extending from the front end to the rear end in the front-rear direction which is the length direction of the electric wire. The folded portion is formed at the front end of the terminal part, The terminal part has an elastically deformable contact portion that contacts the terminal part on the other side at the front end portion including the front end, and has an electric wire fixing portion at the rear end portion including the rear end, and the electric wire fixing portion clamps the electric wire at the rear ends of each of the first piece and the second piece.

4. The terminal device according to claim 1 or claim 2, wherein: The terminal component includes the folded portion, the first piece portion, and the second piece portion. The terminal part has a shape extending from the front end to the rear end in the front-rear direction which is the length direction of the electric wire. The folded portion is formed at the rear end of the terminal part, The terminal part has an elastically deformable contact portion that contacts with the other terminal part at the front end portion including the front end, and has an electric wire fixing portion at the rear end portion including the rear end, and the electric wire fixing portion clamps the electric wire at the rear ends of the first piece and the second piece, respectively. The wire fixing portion has a wire insertion hole that penetrates the folded portion and allows the wire to be inserted therethrough.

5. The terminal device according to claim 1 or claim 2, wherein: The terminal component includes the folded portion, the first piece portion, and the second piece portion. The terminal device further comprises a housing for accommodating the terminal parts. The housing has a support surface for supporting the terminal part. The holding portion is formed in a shape sandwiching the first sheet portion and the second sheet portion between the holding portion and the supporting surface at a position of the housing facing the supporting surface.

6. The terminal device according to claim 2, wherein: The terminal component includes the folded portion, the first piece portion, and the second piece portion. The terminal device further comprises a housing for accommodating the terminal parts. The housing has a support surface for supporting the terminal part. The holding portion is formed in a convex shape at a position of the housing facing the support surface and is arranged inside the second bent portion of the second sheet portion so as to sandwich the first sheet portion and the second sheet portion between the support surface.

7. The terminal device according to claim 2, wherein: The terminal component includes the folded portion, the first piece portion, and the second piece portion. The terminal device further comprises a housing for accommodating the terminal parts. The housing has a support surface for supporting the terminal part. The holding portion is formed in a position of the housing facing the support surface so as to sandwich the first sheet portion and the second sheet portion between the support surface and the holding portion. The support surface has a recessed portion, and the first bent portion of the first sheet portion is fitted into the recessed portion.

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