Connector

Abstract

A box portion (61) of a terminal fitting (60) has an inner wall portion (69) defining an inner space, and an outer wall portion (71) disposed so as to overlap an outer surface of the inner wall portion (69). The outer wall section (71) has a return section (87) that covers one end side of the first plate section (72) in the width direction of the inner wall section (69). The lance section (22) has an inner locking surface (31) that can be locked to the plate thickness surface of the first plate section (72), an outer locking surface (32) that can be locked to the plate thickness surface of the return section (87), and a tip protrusion (33) that is disposed in parallel to the outer locking surface (32) on the other end side in the width direction of the outer locking surface (32) and that protrudes forward from the outer locking surface (32). The first plate portion (72) faces the other end side in the width direction of the first plate portion (72) from the outside.

Description

Technical Field

[0001] The present disclosure relates to a connector. Background Art

[0002] The connector described in Patent Document 1 comprises a housing and a terminal part, wherein the housing has a cavity (terminal storage hole) through which a lance-shaped portion (terminal locking lance-shaped portion) protrudes, and the terminal part is inserted into the cavity and locked with the lance-shaped portion. The terminal part has a cylindrical box portion (terminal fitting portion). The box portion has a bottom wall, and the bottom wall is a double-layer wall structure with inner and outer overlaps. The lance-shaped portion has a locking surface at a position opposite to the plate thickness surface of the double-layer wall of the bottom wall. In addition, the lance-shaped portion protrudes forward from the locking surface and has a top protrusion opposite to the outer surface of the outer wall of the double-layer wall. In addition, connectors having terminal parts locked by the lance-shaped portion are also disclosed in Patent Documents 2-5. Prior art literature Patent Literature

[0003] Patent Document 1: Japanese Patent Application Publication No. 2015-79721 Patent Document 2: Japanese Patent Application Publication No. 2012-209222 Patent Document 3: Japanese Patent Application Laid-Open No. 8-148214 Patent Document 4: Japanese Patent Application Publication No. 2010-55880 Patent Document 5: Japanese Patent Application Publication No. 2021-47995 Summary of the invention Problems to be solved by the invention

[0004] In Patent Document 1, since the locking surface of the lance is locked not with one wall but with the plate thickness surface of the double wall, the holding force for the terminal component can be improved. However, in Patent Document 1, regarding the height direction which is the overlapping direction of the double wall, since the locking surface and the tip protrusion have a stacked structure, the lance increases in height, which may cause a problem that the connector becomes larger in height.

[0005] In view of this, an object of the present disclosure is to provide a connector that can improve the holding force for terminal parts and can avoid enlargement. Solutions to Solve Problems

[0006] The connector of the present invention comprises a terminal part and a shell, the terminal part is plate-shaped and extends in the front-back direction, and has a cylindrical box part, the shell has a cavity that can accommodate the terminal part and a lance-shaped part that protrudes forward from the inner wall of the cavity and can be elastically deformed, the box part has an inner wall part that defines an internal space and an outer wall part that is arranged in a manner overlapping with the outer surface of the inner wall part, the inner wall part has a first plate part along the overlapping direction of the inner wall part and the width direction intersecting the front-back direction, the outer wall part has a return part covering one end side of the first plate part in the width direction, the lance-shaped part has: an inner stop surface that can be locked with a plate thickness surface of the first plate part; an outer stop surface that can be locked with a plate thickness surface of the return part; and a top protrusion that is arranged in parallel with the outer stop surface at the other end side of the outer stop surface in the width direction and protrudes forward from the outer stop surface, and is opposed to the other end side of the first plate part in the width direction from the outside. Effects of the Invention

[0007] According to the present disclosure, it is possible to provide a connector capable of improving the holding force for terminal parts and avoiding enlargement. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 This is a side view showing a state in which the terminal component is inserted into the cavity of the housing and arranged to be engageable with the lance in the connector according to the first embodiment of the present disclosure, and is cut away from the housing side. Figure 2 yes Figure 1 AA line section view. Figure 3 This indicates that a pulling force is applied to the terminal part from behind and the lance is displaced in the reverse direction. Figure 2 The corresponding figure. Figure 4 yes Figure 1 A side sectional view of the state shown. Figure 5 This is a perspective view of the front portion of the terminal component as viewed diagonally from below. Figure 6 This is a front view showing a guide portion of an opening edge of a cavity formed on the front surface of a housing. Figure 7 This is a perspective view of the spear-shaped portion protruding from the inner side of the cavity as viewed from the upper right obliquely. Figure 8 This is a perspective view of the spear-shaped portion protruding from the inner side of the cavity as viewed from the upper left oblique angle. DETAILED DESCRIPTION

[0009] [Description of Embodiments of the Present Disclosure] First, embodiments of the present disclosure will be described below. The connector disclosed herein, (1) A terminal part and a housing, wherein the terminal part is plate-shaped and extends in the front-rear direction and has a cylindrical box portion, the housing having a cavity capable of accommodating the terminal part and a lance-shaped portion protruding forward from the inner wall of the cavity and capable of elastic deformation, the box portion having an inner wall portion defining an internal space and an outer wall portion arranged in a manner overlapping with an outer surface of the inner wall portion, the inner wall portion having a first plate portion along an overlapping direction of the inner wall portion and the outer wall portion and a width direction intersecting the front-rear direction, the outer wall portion having a return portion covering one end side of the first plate portion in the width direction, the lance-shaped portion having: an inner stop surface capable of being stoppered with a plate thickness surface of the first plate portion; an outer stop surface capable of being stoppered with a plate thickness surface of the return portion; and a top protrusion, which is arranged in parallel with the outer stop surface at the other end side of the outer stop surface in the width direction and protrudes forward from the outer stop surface, and is opposed to the other end side of the first plate portion in the width direction from the outside.

[0010] When a pulling force acts on the terminal part in the rear direction, the outer stop surface of the lance-shaped part is also stopped by the plate thickness surface of the return part in addition to the inner stop surface of the lance-shaped part being stopped by the plate thickness surface of the first plate part, so that the holding force on the terminal part can be improved. In addition, the top protrusion abuts against the first plate part, which can suppress the displacement of the lance-shaped part in the reverse direction and the retreat of the terminal part. Furthermore, since the top protrusion and the outer stop surface are arranged side by side in the width direction, it is possible to avoid the lance-shaped part from increasing in height, thereby avoiding the connector from becoming larger.

[0011] (2) The lance preferably comprises: a lance body connected to the inner wall of the cavity and extending in the front-to-rear direction; and a locking protrusion protruding from the lance body toward the inner side of the cavity, wherein the inner locking surface is arranged on the front surface of the locking protrusion, and the outer locking surface and the top protrusion are arranged side by side on the front surface of the lance body along the width direction.

[0012] Since the inner stop surface is arranged on the front surface of the stop projection, the stop amount between the inner stop surface and the plate thickness surface of the first plate portion can be ensured to be large. Since the front surface of the lance body is in a cutout shape, the return portion can enter the inner side of the cutout portion, which can help improve the stability of the stop state between the lance and the return portion.

[0013] (3) It is preferable that the positions of the center portions of the box portion and the locking protrusion in the width direction coincide with each other in the cavity.

[0014] Since the stopper protrusion is not misaligned (offset) relative to the box portion in the width direction, the portion of the demolding hole of the molded stopper protrusion (the cutout portion 41 shown in the following embodiment 1, see Figure 6 ) is appropriately formed into an inducing shape for inducing the other terminal part formed on the front surface of the shell.

[0015] (4) Preferably, the box portion includes a second plate portion at a position facing the first plate portion, and the second plate portion includes an excessive deflection restricting portion that is bent at a rear end portion and faces the lance.

[0016] When a rearward pulling force acts on the terminal fitting, the lance abuts against the excessive deflection restricting portion, thereby suppressing excessive deflection of the lance.

[0017] [Details of the embodiments of the present disclosure] The following is a reference to the attached Figure 1 The present disclosure is not limited to the examples but is shown by the claims, and is intended to include all modifications within the meaning and scope of the claims.

[0018] <Implementation method 1> The connector 10 according to the first embodiment includes a housing 20 made of synthetic resin and a terminal part 60 made of conductive metal. Figure 1 As shown in FIG. 1 , the terminal part 60 is accommodated in the housing 20. The housing 20 is fitted into a counterpart housing (not shown). In the following description, regarding the front-to-back direction, the side of the housing 20 facing the counterpart connector when the housing 20 is fitted is the front side. The up-down direction is based on the up-down direction of each figure. The left-right direction is based on Figure 2 and Figure 3 The left and right directions are taken as the reference. Figures 1 to 3 In the figure, the front side, the right side and the upper side are represented by symbols "X", "Y" and "Z", respectively. The up-down direction and the left-right direction are synonymous with the height direction and the width direction, respectively. The references of these directions are for convenience of explanation and are not necessarily consistent with the references of the directions of the state in which the connector 10 is mounted on a vehicle, etc., not shown in the figure.

[0019] (Terminal parts) The terminal part 60 is formed by bending a metal plate, for example Figure 1 and Figure 4 As shown in the figure, the terminal part 60 is formed into a shape elongated in the front-to-back direction. The terminal part 60 has a box part 61 on the front side, crimping parts 62, 63 on the rear side, and a connecting part 64 between the box part 61 and the crimping parts 62, 63. In addition, the terminal part 60 also has a strip-shaped base 65 extending along the entire length in the front-to-back direction. The base 65 constitutes a part of the box part 61, the connecting part 64 and the crimping parts 62, 63.

[0020] The crimping parts 62 and 63 have a cable crimping part 62 on the front side and an insulation crimping part 63 on the rear side. The cable crimping part 62 is electrically connected by crimping the core wire 52 exposed by removing the coating 51 at the terminal part of the electric wire 50. The insulation crimping part 63 is mechanically connected by crimping the coating 51 at the terminal part of the electric wire 50.

[0021] like Figure 5 As shown in the figure, the connection part 64 has a connecting body part 66 in the form of a strip extending in the front-back direction, and a pair of side parts 67 bent downward from the left and right ends of the connecting body part 66 and arranged parallel to each other. The connecting body part 66 constitutes the middle part in the front-back direction of the base part 65. The rear end of each side part 67 is connected to the cable crimping part 62, and the front end of each side part 67 is respectively connected to the fourth plate part 75 and the sixth plate part 83 described later. The space below the connecting part 64 is a storage space 68 into which the locking protrusion 26 of the lance 22 described later can enter.

[0022] The box portion 61 is in the shape of a square tube. Figure 2 and Figure 3 As shown, it has an inner wall portion 69 defining an inner space 70, and an outer wall portion 71 arranged radially outward of the inner wall portion 69 and along the outer surface of the inner wall portion 69. The inner wall portion 69 has a first plate portion 72 arranged in the left-right direction, a second plate portion 73 arranged above the first plate portion 72 and parallel to the first plate portion 72, a third plate portion 74 extending in the up-down direction and connected to the right ends of the first plate portion 72 and the second plate portion 73, and a fourth plate portion 75 rising from the left end of the first plate portion 72 and arranged parallel to the third plate portion 74.

[0023] like Figure 4 As shown, the first plate portion 72 has a receiving portion 76 in a middle portion in the front-rear direction, the receiving portion 76 being convex toward the inner space 70. The upper surface of the receiving portion 76 is arranged along the front-rear direction.

[0024] like Figure 2 , Figure 3 and Figure 5 As shown, the second plate portion 73 has a fixing portion 78 protruding to the left side near the rear end portion and entering the fixing hole 77 formed in the upper left corner of the box portion 61. The second plate portion 73 is in a cantilever shape extending forward from the fixing hole 77, as shown in FIG. Figure 4 As shown, the front end portion has a contact portion 79 protruding downward. The second plate portion 73 can be elastically deformed in the up-down direction with the fixing hole 77 side entering the fixing hole 77 as a fulcrum. When the housing 20 is mated with the other housing, the anode tab 100 of the other terminal part enters from the front between the contact portion 79 and the receiving portion 76, and the contact portion 79 is electrically connected to the anode tab 100 in the state where the second plate portion 73 has been elastically deformed.

[0025] like Figure 4 and Figure 5 As shown in FIG. 1 , the rear end of the second plate portion 73 is arranged along the inner surface of the connecting body portion 66. The second plate portion 73 has an excessive bending limiting portion 81 formed in a downwardly bent and drooping shape at its rear end. Figure 2 and Figure 3 As shown, the excessive bending limiting portion 81 is rectangular in front view and is arranged at the upper right of the inner space 70. The lower end of the excessive bending limiting portion 81 faces the storage space 68 at a position higher than the lower end of each side portion 67 (see Figure 5 ).

[0026] like Figure 2 and Figure 3 As shown, the outer wall portion 71 has a fifth plate portion 82 extending from the upper end of the fourth plate portion 75 to the right and overlapping with the outer surface (upper surface) of the second plate portion 73, a sixth plate portion 83 extending downward from the right end of the fifth plate portion 82 and overlapping with the outer surface (right surface) of the third plate portion 74, and a return portion 87 bent to the left and extended shorter from the lower end of the rear end portion of the sixth plate portion 83.

[0027] like Figure 5 As shown, the return portion 87 overlaps with the outer surface of the rear end portion of the first plate portion 72 in a manner that partially covers the outer surface (lower surface) of the right end side (one end side in the width direction) of the rear end portion of the first plate portion 72. The rear end surface (plate thickness surface) of the return portion 87 and the rear end surface (plate thickness surface) of the first plate portion 72 are arranged side by side at the same position in the front-to-back direction (see Figure 4 ).

[0028] like Figure 5 As shown, the outer wall portion 71 has a front plate portion 88, which extends from the lower end of the front end portion of the sixth plate portion 83 to the left side and overlaps with the outer surface of the front end portion of the first plate portion 72. The sixth plate portion 83 has a protruding piece 89 protruding downward at a position close to the rear end. The protruding piece 89 is arranged in the left-right direction at a position forward of the return portion 87. The protruding piece 89 can play the role of a stabilizer that guides the insertion action of the terminal part 60 into the housing 20.

[0029] (case) like Figure 1 and Figure 4 As shown, the housing 20 has a cavity 21 extending in the front-to-back direction. The front end and the rear end of the cavity 21 are respectively opened on the front surface and the rear surface of the housing 20. In addition, although not shown, the housing 20 is formed with a plurality of cavities 21. In addition, although not shown, the housing 20 has a locking arm that is locked with the other housing and keeps the housing 20 and the other housing in a fitted state.

[0030] The housing 20 has a lance 22 protruding forward from the lower surface of the inner wall of the cavity 21. The lance 22 can be elastically deformed in the vertical direction with a base end 23 connected to the lower surface of the inner wall of the cavity 21 as a fulcrum. The cavity 21 has a flexure space 24 below the lance 22 to allow the lance 22 to be elastically displaced.

[0031] The lance 22 includes a lance body 25 extending forward from the base end 23 and a locking projection 26 projecting from the upper surface of the lance body 25 toward the inside of the cavity 21 .

[0032] like Figure 6 As shown, a first pressed surface 27 and a second pressed surface 28 are formed on the upper surface of the lance body 25 at the ends on both sides of the locking protrusion 26. The first pressed surface 27 and the second pressed surface 28 are arranged in the front-back direction and are pressed by a jig (not shown) when the locking state of the lance 22 is released.

[0033] like Figure 8 As shown, the lance body 25 has a guiding slope 29 having a shape formed by cutting off the upper left front end corner. The guiding slope 29 is connected to the first pressed surface 27 and plays a role in guiding the jig to the first pressed surface 27. In order to avoid interference with the tab portion 89 of the terminal part 60, as Figure 6 As shown in FIG. 2 , the second pressed surface 28 is arranged at a position lower than the first pressed surface 27. Figure 7 and Figure 8 As shown in FIG. 1 , the rear surface of the locking protrusion 26 is in the shape of an inclined surface inclined forward. The front surface of the locking protrusion 26 is configured as an inner locking surface 31 capable of locking the rear end surface (plate thickness surface) of the first plate portion 72 of the terminal part 60. The inner locking surface 31 extends in the left-right direction and is as shown in FIG. Figure 1 and Figure 4 As shown in FIG. 1 , the upper end side is arranged in a direction inclined relative to the vertical direction in a manner that the upper end side protrudes forward. Figure 6 As shown, the inner locking surface 31 has a trapezoidal shape in a front view whose width gradually increases toward the lower end side, and is arranged at the center portion of the lance 22 in the left-right direction.

[0034] like Figure 6 As shown, the front surface of the lance body 25 has an outer stop surface 32 that can stop the rear end surface (plate thickness surface) of the return portion 87 of the terminal part 60. The outer stop surface 32 is continuous with the inner stop surface 31 without a step below the inner stop surface 31, and is arranged in a position forward and to the left of the second pressed surface 28. The outer stop surface 32 is arranged on the front surface of the lance body 25, biased to the right side of the center of the lance body 25 in the left-right direction. The left-right dimension (width dimension) of the outer stop surface 32 is smaller than the left-right dimension of the inner stop surface 31. In addition, as shown in FIG. Figure 1 As shown, the outer locking surface 32 has its upper end side inclined forward and is continuous with the inner locking surface 31 at the same inclination angle.

[0035] like Figure 6-Figure 8 As shown, the lance body 25 has a top protrusion 33 protruding forward from the outer stop surface 32 at a position on the left side of the outer stop surface 32 and parallel to the outer stop surface 32 in the left-right direction. The top protrusion 33 is in the shape of a plate and is arranged in parallel with the outer stop surface 32 in the left-right direction. The top protrusion 33 and the outer stop surface 32 are arranged at a position overlapping each other in the up-down direction. Specifically, the outer stop surface 32 is arranged within the formation range of the top protrusion 33 in the up-down direction. The lower end of the outer stop surface 32 intersects with the lower surface (the surface facing the flexure space 24) of the lance body 25.

[0036] In addition, the outer stop surface 32 is arranged to intersect and be continuous with the right side surface of the top protrusion 33. Figure 7 As shown, the lance body 25 is provided with a cutout recess 34 having an L-shaped cross section formed by the right side surface of the distal end protrusion 33 and the outer stop surface 32 .

[0037] like Figure 2 and Figure 3 As shown in FIG. 1 , the upper surface of the top protrusion 33 is formed as an opposing surface 35 that is opposed to the outer surface (lower surface) of the first plate portion 72 of the terminal part 60 so as to be in contact with it. Figure 8 As shown, the facing surface 35 of the distal end protrusion 33 intersects with the inner locking surface 31 and is a flat surface that is continuous with the first pressed surface 27 in the front-rear direction without any step.

[0038] like Figure 1 and Figure 6 As shown, the housing 20 has a front wall 37 that leaves the electrode insertion hole 36 and closes the front of the cavity 21. A guide portion 38 that expands conically from the opening of the electrode insertion hole 36 is formed on the front surface of the front wall 37. The guide portion 38 serves to guide the anode piece 100 of the other terminal part to the electrode insertion hole 36. Although not shown, the anode piece 100 passes through the electrode insertion hole 36 and is inserted into the inner side of the box portion 61 of the terminal part 60 arranged in the cavity 21 to be connected.

[0039] In addition, a demolding hole 39 is formed on the front surface of the housing 20 due to demolding of a mold (not shown) for molding the lance 22. The demolding hole 39 communicates with the flexure space 24 inside the housing 20. Figure 6 As shown, the demolding hole 39 includes a cutout portion 41 that is a cutout in the middle of the left-right direction in the lower end portion of the guide portion 38. The cutout portion 41 allows the inner locking surface 31 of the locking projection 26 to be visually confirmed from the front.

[0040] (Function of connector) The terminal part 60 is inserted into the cavity 21 of the housing 20 from the rear while the electric wire 50 is connected to the crimping parts 62 and 63. During the insertion of the terminal part 60, the box part 61 slides on the rear surface of the locking protrusion 26, and the lance 22 is elastically deformed in the flexure space 24. Figure 1 and Figure 4 As shown, when the box portion 61 abuts against the rear surface of the front wall 37 and reaches the position where the insertion action of the terminal part 60 is stopped (the regular insertion position), the lance 22 elastically recovers, the locking protrusion 26 enters the storage space 68, and the inner locking surface 31 of the locking protrusion 26 is arranged to be in contact with the rear end surface of the box portion 61. Specifically, as Figure 2 As shown, the upper end of the inner stop surface 31 of the stop projection 26 is opposite to the rear end surface of the middle portion in the left-right direction of the first plate portion 72 in a manner that can contact in the left-right direction, and the lower right end of the inner stop surface 31 of the stop projection 26 is opposite to the left end of the return portion 87 in a manner that can contact. In addition, when the box portion 61 abuts against the rear surface of the front wall 37 and the lance 22 is in a natural state, the outer stop surface 32 is arranged away from the return portion 87. The lower end of the excessive deflection limiting portion 81 is arranged opposite to the upper surface of the stop projection 26.

[0041] In the above state, the wire 50 drawn out from the housing 20 may be pulled backward, and a pulling force may be applied to the terminal part 60 in the backward direction. Figure 1 and Figure 4 The terminal part 60 moves backwards from the state shown in the figure until the rear end face of the box part 61 contacts the inner stop face 31 of the stop protrusion 26. When the pulling force continues to act and the terminal part 60 moves further backwards, the rear end face of the first plate part 72 slides toward the lower end of the inner stop face 31, and the lance 22 elastically deforms upward as the reversal direction. At this time, as shown in FIG. Figure 3 As shown, the rear end face of the first plate portion 72 is latched with the lower end of the inner stop surface 31 in a wide manner along the left-right direction. Next, the return portion 87 enters the inner side of the cutout recess 34, and the rear end face of the return portion 87 is latched with the outer stop surface 32. As a result, further retreat of the terminal part 60 is restricted, and the terminal part 60 is prevented from coming out of the cavity 21. At this time, the opposing surface 35 of the top protrusion 33 abuts the outer surface (lower surface) of the rear end of the first plate portion 72. Furthermore, the upper surface of the stop protrusion 26 can also abut the lower end of the excessive deflection limiting portion 81. In this way, the lance 22 abuts against the first plate portion 72 and the excessive deflection limiting portion 81, thereby suppressing the upward displacement of the lance 22 and limiting the retreat of the terminal part 60. As a result, the terminal part 60 can be reliably prevented from coming out of the cavity 21.

[0042] As described above, according to the first embodiment, when a pulling force acts on the terminal part 60 in the rearward direction, the outer stopper surface 32 of the lance 22 is also stopped by the rear end surface of the return portion 87 in addition to the inner stopper surface 31 of the lance 22 being stopped by the rear end surface of the first plate portion 72, so that the holding force for the terminal part 60 can be improved. In addition, the facing surface 35 of the top protrusion 33 is in contact with the outer surface (lower surface) of the first plate portion 72, so that the upward displacement of the lance 22 and the retreat of the terminal part 60 can be reliably suppressed. Furthermore, since the top protrusion 33 and the outer stopper surface 32 are arranged in parallel in the left-right direction instead of in the height direction, it is possible to avoid the lance 22 from increasing in the height direction, and thus it is possible to avoid the connector 10 from increasing in size.

[0043] Since the inner locking surface 31 is arranged on the front surface of the locking protrusion 26, it is possible to ensure a large locking amount between the inner locking surface 31 and the rear end surface of the first plate portion 72. In addition, the return portion 87 enters the inner side of the cutout recess 34 of the lance body 25, which can help improve the stability of the locking state between the lance 22 and the return portion 87.

[0044] Furthermore, in this embodiment 1, if Figure 2 and Figure 3 As shown, the center portions of the box portion 61 and the stopper protrusion 26 in the left and right directions are arranged at the same position in the left and right directions. Therefore, the stopper protrusion 26 is not misaligned (offset) relative to the box portion 61 in the left and right directions. Figure 6 As shown, the cutout portion 41 can be formed at the center portion (middle portion) in the left-right direction of the lower end portion of the guiding portion 38. Thus, the guiding portion 38 can appropriately exert the guiding function for the anode sheet 100.

[0045] Furthermore, when a pulling force acts on the terminal fitting 60 in the rear direction, the lance 22 also comes into contact with the excessive deflection restricting portion 81 , so that excessive deflection of the lance 22 can be suppressed.

[0046] [Other embodiments of the present disclosure] The above-described first embodiment disclosed this time is illustrative in all aspects and should be considered non-restrictive. In the first embodiment, the inner engaging surface and the outer engaging surface are continuously arranged on the lance without a step. In contrast, according to another embodiment, the inner contact surface and the outer engaging surface may be arranged on the lance via a step. In the first embodiment, the inner locking surface is arranged on the front surface of the locking protrusion in an inclined manner. On the other hand, the inner locking surface may be arranged on the front surface of the locking protrusion in the up-down direction. Description of Reference Numerals

[0047] 10…Connector 20…Housing 21…Cavity 22…Spear 23…base end 24…Flexing Space 25…Lance body 26…Locking protrusion 27…1st pressed surface 28…Second pressed surface 29…Induced slope 31…Inner stop surface 32…Outer stop surface 33…Top protrusion 34…Notch recess 35…Opposite side 36…Pole piece insertion hole 37…Front wall 38…Induction 39…Mold removal hole 41…Resection 50…Wire 51…Covering 52…core wire 60…Terminal parts 61…Box 62…Cable crimping part (crimping part) 63…Insulation crimping part (crimping part) 64…Connection 65…base 66…Connect the main body 67…Side 68…Storage space 69…Inner wall part 70…Inside space 71…Outer wall 72…1st plate 73…Part 2 74…Part 3 75…Part 4 76…Receiving Department 77…Fixing hole 78…Fixed part 79…Contact part 81…Excessive deflection limiting section 82…Part 5 83…Part 6 87…Return 88…Front panel 89…Tubular part 100…Anode sheet

Claims

1. A connector comprising a terminal part and a housing, The terminal part is plate-shaped and extends in the front-to-back direction, and has a cylindrical box part. The housing has a cavity capable of accommodating the terminal part and a lance-shaped part protruding forward from the inner wall of the cavity and capable of elastic deformation. The box portion includes an inner wall portion defining an internal space and an outer wall portion arranged to overlap with an outer surface of the inner wall portion. The inner wall portion has a first plate portion along an overlapping direction of the inner wall portion and the outer wall portion and a width direction intersecting the front-rear direction. The outer wall portion includes a return portion covering one end side of the first plate portion in the width direction. The lance has: an inner stop surface capable of being stopped with the plate thickness surface of the first plate portion; an outer stop surface capable of being stopped with the plate thickness surface of the return portion; and The tip protrusion is arranged in parallel with the outer locking surface at the other end side of the outer locking surface in the width direction, protrudes forward from the outer locking surface, and faces the other end side of the first plate portion in the width direction from the outside.

2. The connector according to claim 1, wherein: The lance has: a lance body connected to the inner wall of the cavity and extending in the front-to-rear direction; and a locking protrusion protruding from the lance body toward the inner side of the cavity, The inner stop surface is arranged on the front surface of the stop protrusion. The outer stop surface and the distal end protrusion are arranged side by side on the front surface of the lance body along the width direction.

3. The connector according to claim 2, wherein: The positions of the center portions of the box portion and the locking protrusion in the width direction coincide with each other in the cavity.

4. The connector according to any one of claims 1 to 3, wherein: The box portion has a second plate portion at a position facing the first plate portion. The second plate portion includes an excessive deflection restricting portion that is bent at a rear end portion and faces the lance-shaped portion.

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