Connector

Abstract

The invention discloses a connector, which improves external force blocking performance for inhibiting external force from being transmitted from an electric wire to a terminal side. A connector (10) is provided with: a connector housing (20) having a wire outlet (18); a terminal (14) housed in the connector housing (20); an electric wire (22) connected to the terminal (14) and led out from the electric wire outlet (18) to the outside of the connector housing (20); and a metal holder (24) for holding the electric wire (22) led out from the electric wire lead-out port (18), the metal holder (24) having a first holding part (72) and a second holding part (74) that sandwich and hold the electric wire (22) from both sides in the direction perpendicular to the axis of the electric wire (22) and are fixed to each other, and the metal holder (24) being provided with a first bolt fastening part (76) that is bolt-fastened to the connection partner side (30).

Description

Technical Field

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

[0002] In the past, connectors were used to electrically connect vehicle-mounted devices. Such connectors include a connector housing, terminals housed in the connector housing, and wires connected to the terminals, and the wires are led out from the wire lead-out port of the connector housing. When the external force applied to the wires led out to the outside is transmitted to the terminal side, problems such as micro-sliding wear of the contacts occur. Therefore, in order to suppress the external force applied to the wires from reaching the terminal side, for example, in Patent Document 1, a rear retaining body made of resin is provided, and the rear retaining body holds the wires in the connector housing while suppressing the vibration of the wires. Prior art literature Patent Literature

[0003] Patent Document 1: Japanese Patent Application Publication No. 2011-54393 Summary of the invention Problems to be solved by the invention

[0004] However, since the rear retainer is made of resin, it may deform due to creep in a high temperature environment, and a gap may be generated between the rear retainer and the wire. As a result, the vibration of the wire relative to the connector housing may not be suppressed. This becomes a more serious problem when the wire diameter increases due to the high voltage of the vehicle-mounted components.

[0005] Therefore, a connector is disclosed that improves the external force blocking performance of suppressing the transmission of external force from the electric wire to the terminal side. Solutions to Solve Problems

[0006] The connector of the present invention includes: a connector housing having an electric wire lead-out port; a terminal housed in the connector housing; an electric wire connected to the terminal and led out from the electric wire lead-out port to the outside of the connector housing; and a metal retainer for retaining the electric wire led out from the electric wire lead-out port, the metal retainer having a first retaining portion and a second retaining portion for clamping and retaining the electric wire from both sides in a direction perpendicular to the axis of the electric wire and fixing the electric wire to each other, and having a first bolt fastening portion for fastening the electric wire to the other side of the connection with a bolt. Effects of the Invention

[0007] According to the structure of the present invention, it is possible to provide a connector in which the external force blocking performance for suppressing the transmission of the external force from the electric wire to the terminal side is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 This is a perspective view showing a state where the connector according to Embodiment 1 is connected to a connection partner. Figure 2yes Figure 1 Rear view of the connector shown. Figure 3 yes Figure 2 Section view III-III in FIG. Figure 4 yes Figure 2 IV-IV section view in FIG. Figure 5 yes Figure 2 VV section view in. Figure 6 yes Figure 2 VI-VI section view in. Figure 7 Yes Figure 1 The connector shown is a perspective view showing a state in which it is not connected to a connection partner. Figure 8 Yes Figure 7 The connector is shown in an exploded perspective view with part of it exploded. Fig. 9 It will constitute Figure 7 The first holding portion of the connector shown is a perspective view shown from the rear side. Fig.10 yes Fig. 9 A rear view of the first retaining portion shown. Fig.11 It is shown that it can be Figure 1 The illustrated connector is a perspective view of a specific example of a connector on the other side of the connection. DETAILED DESCRIPTION

[0009] <Description of Embodiments of the Invention> First, embodiments of the present invention will be described by way of examples. The connector of the present invention, (1) A method of manufacturing a metal retaining member comprising: a connector housing having a wire lead-out port; a terminal housed in the connector housing; a wire connected to the terminal and led out from the wire lead-out port to the outside of the connector housing; and a metal retaining member for retaining the wire led out from the wire lead-out port, the metal retaining member comprising a first retaining portion and a second retaining portion for sandwiching and retaining the wire from both sides in a direction perpendicular to the axis of the wire and fixing the wire to each other, and a first bolt fastening portion for fastening the wire to the other side of the connection with a bolt.

[0010] According to the connector of the present invention, the retaining member for holding the wires led out from the wire lead-out port is made of metal. In addition, the metal retaining member has a first retaining portion and a second retaining portion for clamping and holding the wires from both sides in the direction perpendicular to the axis and fixing them to each other. Therefore, compared with the existing example of using a rear retaining body made of synthetic resin, the metal retaining member is less likely to deform even in a high temperature environment. As a result, it is possible to suppress or prevent the undesirable situation of a gap being generated between the wires led out from the wire lead-out port and the metal retaining member. Moreover, because the metal retaining member is bolted to the other side of the connection (for example, a box of a device to be connected to the other side) at the first bolt fastening portion, it is possible to advantageously suppress or prevent the external force transmitted from the wires from being transmitted from the metal retaining member to the terminal side. Thus, it is possible to advantageously provide a connector having improved external force blocking performance for suppressing the transmission of external force from the wires to the terminal side.

[0011] The first holding portion and the second holding portion of the metal holder can be fixed by any fixing structure such as fixing using a fastener such as a bolt, clamping fixing, or locking fitting.

[0012] (2) In the above (1), it is preferred that it further includes a metal shielding shell covering the connector housing, the shielding shell and the metal retaining member are assembled with each other by combining an assembling portion provided on one side with an assembled portion provided on the other side, the assembling portion and the assembled portion have a first tolerance absorbing gap extending in the same direction between the opposing surfaces of the assembling portion and the assembled portion and a first bolt insertion hole passing through the first bolt fastening portion, respectively, and the metal retaining member is assembled relative to the shielding shell in a manner capable of being displaced by the amount of the first tolerance absorbing gap.

[0013] Since the metal retainer is assembled to the shielding shell covering the connector housing by combining the assembling part with the assembled part, it is possible to advantageously prevent the metal retainer from being detached from the shielding shell. Moreover, the first tolerance absorbing gap extending in the same direction is provided between the opposing surfaces of the assembling part and the assembled part and the first bolt insertion hole penetrating the first bolt fastening part, and the metal retainer is assembled relative to the shielding shell in a manner that allows displacement by the first tolerance absorbing gap. Thus, after the connector is connected to the other side of the connection, when the first bolt fastening part is connected to the other side of the connection, the tolerance can be absorbed by the first tolerance absorbing gap, and the bolt fastening of the metal retainer to the other side of the connection can be advantageously performed.

[0014] Furthermore, the assembling portion and the assembled portion may be of any shape or structure as long as the metal holder can be assembled to the shielding shell. In addition, the expansion direction of the first tolerance absorbing gap can be arbitrarily set in a direction that can generate tolerance, such as the same direction as the extension direction of the wire, the direction orthogonal to the extension direction of the wire, etc. The first tolerance absorbing gap can be set in one direction or in multiple directions.

[0015] (3) In the above (2), preferably, there is a second tolerance absorbing gap extending in the bolt tightening direction of the first bolt tightening part between the opposing surfaces of the assembling part and the assembled part, and the metal retaining part is assembled relative to the shielding shell in a manner capable of being displaced by the amount of the second tolerance absorbing gap.

[0016] A second tolerance absorbing gap extending in the bolt tightening direction of the first bolt tightening portion is provided between the opposing surfaces of the assembly portion and the assembled portion, and the metal retainer is assembled relative to the shielding shell in a manner that can be displaced by the amount of the second tolerance absorbing gap. As a result, after the connector is connected to the other side of the connection, when the first bolt tightening portion is connected to the other side of the connection, the tolerance can be absorbed by the second tolerance absorbing gap, and the metal retainer can be conveniently bolted to the other side of the connection. In particular, when the so-called bolt-assisted type connector adopts this method, when the connector is connected to the other side of the connection, because the terminal side bolt is tightened to the other side of the connection, the tolerance becomes a problem when the metal retainer is bolted to the other side of the connection. Therefore, by adopting this method having the second tolerance absorbing gap, in the bolt-assisted type connector, it is possible to facilitate the operation of bolting the metal retainer to the other side of the connection.

[0017] (4) In the above (2) or (3), it is preferred that the shield shell has a second bolt fastening portion that is bolted toward the other side of the connection. In addition to the first bolt fastening portion, the second bolt fastening portion is further provided at a position close to the terminal side, so that the external force transmitted from the wire can be further suppressed or prevented from being transmitted to the terminal side, and the external force blocking performance can be further improved.

[0018] (5) In the above (4), preferably, the terminal is engaged with the other terminal by bolt-fastening the second bolt-fastening portion to the other terminal. A bolt-fastening portion in a so-called bolt-assisted connector can be used as the second bolt-fastening portion. Therefore, a connector that can achieve both ease of connector engagement and improved external force blocking performance with a small number of components can be provided.

[0019] (6) In any one of the above (1) to (5), it is preferred that the connector housing accommodates the two terminals, and the two wires respectively connected to the two terminals are led out from the wire lead-out port to the outside of the connector housing, and the first retaining portion and the second retaining portion of the metal retaining member respectively have a pair of grooves that are in close contact with the outer peripheral surface of the wires, and the first retaining portion and the second retaining portion are fixed to each other, so that the two wire receiving holes for clamping the two wires are arranged in parallel, and in the parallel direction of the two wire receiving holes, the first bolt fastening portion is arranged between the two wire receiving holes, and a pair of retaining member bolt fixing portions are provided on both sides of the two wire receiving holes.

[0020] In the metal retainer, the space between the two wire receiving holes can be used to set the first bolt fastening portion, which can avoid the enlargement of the connector and improve the external force blocking performance of the connector. Moreover, in the parallel direction of the two wire receiving holes, a pair of retainer bolt fixing portions that bolt the first retaining portion and the second retaining portion to each other are provided on both sides of the two wire receiving holes. Thus, the two wires can be stably held by the metal retainer through the axial force of the three bolts, and the risk of external forces transmitted to the wires being transmitted to the terminal side can be further advantageously avoided or suppressed by the metal retainer. In addition, the connector housing that accommodates the two terminals can be constructed as a single body or can be composed of separate connector housings that respectively accommodate the two terminals.

[0021] <Details of Embodiments of the Invention> Specific examples of the connector of the present invention are described below with reference to the drawings. The present invention is not limited to these examples, but is shown by the claims, and is intended to include all modifications within the meaning and scope equivalent to the claims.

[0022] <Implementation Method 1> Below, use Figures 1 to 10 A connector 10 according to a first embodiment of the present invention will be described. Fig.11 A specific example of a counterpart connector 12 that can be connected to the connector 10 is shown in FIG. Figures 1 to 6 10 is shown in a state of being connected to a mating connector 12. The connector 10 includes a terminal 14, and the mating connector 12 includes a mating terminal 16. The terminal 14 and the mating terminal 16 are in contact with each other, so that the connector 10 and the mating connector 12 are in an electrically conductive state. The connector 10 can be arranged in any orientation, but the following assumes that the top is Figure 2 The top of the middle and the bottom of the middle Figure 2 Below, in front Figure 3 The left side of the middle, the back side is Figure 3 The right side of the Figure 2 The left side of Figure 2 In addition, for a plurality of identical components, sometimes only some of the components are marked with reference numerals, and the reference numerals for the other components are omitted.

[0023] <Connector 10> The connector 10 includes: a connector housing 20 having a wire lead-out port 18; a terminal 14 housed in the connector housing 20; a wire 22 connected to the terminal 14 and led out from the wire lead-out port 18 to the outside of the connector housing 20; and a metal retainer 24 that retains the wire 22 led out from the wire lead-out port 18. In addition, the connector 10 includes a metal shielding shell 26 covering the connector housing 20. In the first embodiment, a pair of terminals 14, 14 are provided, and each terminal 14 is housed in the connector housing 20. As shown in FIG. Figure 2 As shown, the pair of terminals 14, 14 and the pair of connector housings 20, 20 are arranged to be separated from each other in the left-right direction.

[0024] <Mate side connector 12> Also like Fig.11 As shown in the figures, the counterpart connector 12 of the first embodiment includes a counterpart terminal 16 connected to the terminal 14 and a counterpart housing 28 that accommodates and holds the counterpart terminal 16. In the first embodiment, since a pair of terminals 14, 14 are provided in the connector 10, the counterpart connector 12 includes a pair of counterpart terminals 16, 16, and these counterpart terminals 16 are arranged to be separated from each other in the left-right direction. The counterpart connector 12 is fixed to a metal box 30, and as described later, the metal retainer 24 is bolted to the box 30 that becomes the connecting counterpart by a first bolt 122. In addition, in the counterpart connector 12 fixed to the box 30, each counterpart terminal 16 is held in a state of protruding backward.

[0025] In the first embodiment, each of the other-side terminals 16 is formed as a pin terminal, and each of the other-side terminals 16 has a columnar connecting portion 32. In addition, a bolt insertion hole 34 is provided at the base end (front end) of each of the other-side terminals 16, and each of the other-side terminals 16 is fixed to a terminal portion of a device, etc., not shown, by, for example, a bolt, not shown, inserted through the bolt insertion hole 34.

[0026] These respective counterpart terminals 16 are fixedly held in the counterpart housing 28. In addition, the method for fixing the respective counterpart terminals 16 and the counterpart housing 28 is not limited, but in the first embodiment, the counterpart housing 28 is formed as an integrally molded product having the respective counterpart terminals 16 by molding the counterpart housing 28 in a state where the respective counterpart terminals 16 are embedded in the molding cavity. Fig.11 As shown in the figures, the counterpart housing 28 is integrally provided with a pair of legs 36, 36 protruding downward, and the counterpart housing 28 to which the counterpart terminals 16 are fixed is fixed to the housing 30 by bolts 38 inserted through the legs 36. In addition, an annular waterproof rubber 40 is externally fitted on the portion of the outer peripheral surface of the counterpart housing 28 that is inserted through the insertion hole 44 described later in the housing 30.

[0027] The housing 30 includes a rectangular plate portion 42 which is rectangular in plan view, and an insertion hole 44 is formed in the upper portion of the rectangular plate portion 42 for the other side housing 28 to be inserted. In addition, a second bolt fixing portion 46 is provided in the left-right center of the portion below the insertion hole 44 in the rectangular plate portion 42, and a threaded portion of a second bolt 162 described later is inserted into the second bolt fixing portion 46. The second bolt fixing portion 46 is a substantially cylindrical portion opening forward, has a predetermined front-rear dimension, and has an internal thread formed on the inner circumference. Furthermore, a first bolt fixing portion 48 is provided in the left-right center of the portion below the second bolt fixing portion 46 in the rectangular plate portion 42, and a threaded portion of a first bolt 122 described later is inserted into the first bolt fixing portion 48. The first bolt fixing portion 48 is a substantially cylindrical portion opening forward, has a predetermined front-rear dimension, and has an internal thread formed on the inner circumference. The second bolt fixing portion 46 and the first bolt fixing portion 48 are provided at a predetermined distance from each other in the up-down direction.

[0028] <Terminal 14> In Embodiment 1, as long as the other-side terminal 16 is formed as a pin terminal and the terminal 14 has a cylindrical connection portion 50 into which the columnar connection portion 32 of the other-side terminal 16 is pressed, its specific structure is not limited, and for example, a structure such as the female terminal (10) described in Japanese Patent Gazette No. 2021-28899 can be adopted. More specifically, the terminal 14 of Embodiment 1 is configured to include a terminal body 52 and a clip spring 54 as an elastic member assembled to the top end (upper end) of the terminal body 52. ​​In addition, a wire fixing portion 56 is provided at the base end (lower end) of each terminal body 52, and each wire 22 is fixed to the wire fixing portion 56.

[0029] Each electric wire 22 is a covered electric wire, and is composed of a core wire 58 and an insulating coating 60 made of synthetic resin, and the insulating coating 60 covers the core wire 58 over substantially the entire length. In addition, the insulating coating 60 is stripped off at the terminal end of each electric wire 22 to expose the core wire 58, and the exposed core wire 58 is fixed to the wire fixing portion 56 of each terminal body 52, so that each terminal body 52 and each electric wire 22 are connected. In addition, the fixing method of the wire fixing portion 56 and the core wire 58 is not limited, and it can be adhesive, welding, etc., or crimping using a crimping piece.

[0030] <Connector Housing 20> like Figure 2 , 3As shown, the connector housing 20 has a substantially rectangular cylindrical terminal receiving portion 62, and the upper end portion of each electric wire 22 and each terminal 14 fixed to the terminal of each electric wire 22 are received in the terminal receiving portion 62. As described above, in Embodiment 1, a pair of connector housings 20, 20 are provided, and each connector housing 20 has a terminal receiving portion 62. Each connector housing 20 (each terminal receiving portion 62) is separated from each other in the left-right direction, and each extends in the up-down direction and opens downward. In addition, each electric wire 22 received in each terminal receiving portion 62 is led out to the external space through the lower opening of each connector housing 20 (each terminal receiving portion 62), and the lower opening of each connector housing 20 constitutes the wire lead-out port 18 for leading out each electric wire 22. That is, the terminals 14 are respectively received in the two connector housings 20, 20, and the two electric wires 22, 22 respectively connected to the two terminals 14 are led out to the outside of the connector housing 20 from each wire lead-out port 18.

[0031] In implementation mode 1, Figure 3 As shown, each connector housing 20 is composed of a connector housing body 64 and a connector housing cover 66 assembled to the connector housing body 64. That is, a window portion penetrating in the thickness direction (front-rear direction) is provided at the upper portion of the wall portion on the front side of the connector housing body 64, and the connector housing cover 66 is assembled in a manner covering the window portion. In addition, an insertion hole 68 is formed in the connector housing cover 66 at a position corresponding to the cylindrical connection portion 50 of the terminal 14, and when the connector 10 described later is connected to the other-side connector 12, the columnar connection portion 32 of the other-side terminal 16 is inserted into the insertion hole 68.

[0032] In addition, the method of fixing each of these connector housings 20 and the shield shell 26 covering each connector housing 20 is not limited, but in the first embodiment, as described later, each connector housing 20 is inserted into the inside from the lower opening of the shield shell 26. And, for example, each connector housing 20 is fixed to the shield shell 26 by fitting the concave and convex parts provided on the outer surface of each connector housing 20 and the inner surface of the shield shell 26.

[0033] Ring-shaped waterproof rubber 70 is inserted and mounted on the outside of each wire 22 led downward from the wire lead-out port 18 of each connector housing 20 as described above, and each waterproof rubber 70 is inserted into the inside from the lower opening of the shield shell 26. Furthermore, metal retainers 24 are provided below each waterproof rubber 70, and the metal retainers 24 retain each wire 22 led out from each wire lead-out port 18. In the first embodiment, the metal retainers 24 are assembled to the lower opening of the shield shell 26, and the metal retainers 24 can also prevent each waterproof rubber 70 from falling off.

[0034] <Metal retainer 24> The metal holder 24 has a first holding portion 72 on the rear side and a second holding portion 74 on the front side, and the first holding portion 72 on the rear side and the second holding portion 74 on the front side sandwich and hold the electric wire 22 from both sides in the axial direction perpendicular to the electric wire 22 (both sides in the front-rear direction) and fix them to each other. In addition, the metal holder 24 has a first bolt fastening portion 76, and the first bolt fastening portion 76 is bolt-fastened to the box body 30 that becomes the other side connector 12 of the other side of the connection by a first bolt 122 described later.

[0035] <First Holding Section 72> Also like Fig. 9 , 10 As shown in the figures, the first holding portion 72 includes a first main body 77 of a substantially rectangular block shape whose left-right dimension is larger than its up-down dimension in front view or rear view, and a groove 78 is formed on the front surface of the first main body 77 and is open to the front in a substantially semicircular cross-sectional shape. The groove 78 extends in the up-down direction, and the inner peripheral surface of the groove 78 is in close contact with the outer peripheral surface of the electric wire 22 (the outer peripheral surface of the insulating coating 60) when the metal holder 24 is fixed to the electric wire 22. In the first embodiment, since the pair of electric wires 22, 22 are separated from each other in the left-right direction, the pair of grooves 78, 78 are separated from each other in the left-right direction in the first holding portion 72. In addition, the pair of grooves 78, 78 are connected by a connecting portion 79 at the left-right central portion of the first main body 77. In addition, each groove 78 has a larger up-down dimension than the first main body 77, and the semi-cylindrical portion constituting each groove 78 is integrally formed so as to protrude downward from the first main body 77.

[0036] In addition, in the first embodiment, Figure 3 As shown, a pressing protrusion 80 protruding toward the inner circumference side (radially inward) is provided at the upper portion of the inner circumference of each groove 78. Each pressing protrusion 80 is formed with a predetermined vertical dimension and circumferential dimension.

[0037] A rear insertion hole 82 is formed in the left-right central portion (connection portion 79) of the first main body portion 77, and a first bolt 122 described later is inserted through the rear insertion hole 82. The rear insertion hole 82 penetrates the connection portion 79 in the front-to-back direction, as shown in FIG. Fig.10 As shown, the inner peripheral surface has a substantially oblong shape whose vertical dimension is larger than the horizontal dimension. Fig.10 In FIG. 8 , the first bolt 122 inserted into the rear insertion hole 82 is indicated by a double-dashed line. The inner diameter of the rear insertion hole 82 is larger than the outer diameter of the first bolt 122, and the gap between the inner peripheral surface of the rear insertion hole 82 and the opposing surface of the outer peripheral surface of the first bolt 122 is a substantially annular rear gap 84. The vertical dimension β of the radial width dimension of the rear gap 84 (refer to Fig.10 ) than the left-right dimension α (reference Fig.10 ) is large. In addition, a circular recess 86 opening at the rear is formed on the rear surface of the first main body 77, and the bottom surface of the circular recess 86 is connected to the rear insertion hole 82. When the first bolt 122 is inserted into the rear insertion hole 82, the head 122a of the first bolt 122 is received in the circular recess 86.

[0038] <Assembly section 88> In addition, an assembly portion 88 is provided in a protruding manner upward at the center portion in the left-right direction of the rear end portion of the first main body portion 77, and the assembly portion 88 is combined with a later-described assembled portion 178 of the shield shell 26. And, by combining these assembly portions 88 and the assembled portion 178, the metal holder 24 is assembled to the shield shell 26. In the first embodiment, the assembly portion 88 is in a substantially rectangular frame shape, and includes upper protruding portions 90 on both left and right sides protruding upward from the first main body portion 77 and a connecting portion 92 connecting the protruding ends (upper ends) of each upper protruding portion 90. Thus, an assembly area 94 having a substantially rectangular shape in a front view is formed in an area surrounded by the first main body portion 77, each upper protruding portion 90, and the connecting portion 92, and the left-right dimension of the assembly area 94 is larger than the vertical dimension.

[0039] Furthermore, locking protrusions 96 projecting rearward are provided on the rear surface of the first main body 77 on both left and right sides of the circular recess 86. In addition, rear fixing portions 98 are provided at both ends in the left and right directions of the first main body 77, that is, on the left and right outer sides of each recess 78, and fixing bolts 116 described later are fixed to the rear fixing portions 98. Each rear fixing portion 98 is substantially cylindrical and opens forward, and projects outward in the left and right directions from both ends in the left and right directions of the first main body 77. An internal thread that is screwed into the external thread of the fixing bolt 116 is formed on the inner circumferential surface of each of these rear fixing portions 98.

[0040] <Second Holding Unit 74> The second holding portion 74 has a shape generally similar to that of the first holding portion 72, and includes a second main body portion 100 that is generally rectangular in a plan view. A pair of grooves 78, 78 are provided on both sides of the rear surface of the second main body portion 100 in the left and right directions, and these grooves 78 are connected by a connecting portion 79. In the first embodiment, in the second holding portion 74, each pressing protrusion 80 that protrudes toward the inner peripheral side (radially inward) is also provided on the upper portion of the inner peripheral surface of each groove 78.

[0041] In addition, a front insertion hole 102 is formed in the middle part (connection part 79) in the left-right direction of the second main body 100, and the first bolt 122 described later is inserted into the front insertion hole 102. In particular, a cylindrical part 104 protruding forward is provided in the connection part 79 of the second main body 100, and the front insertion hole 102 is formed by penetrating these connection parts 79 and the cylindrical part 104 in the front-to-back direction. The front insertion hole 102 has the same inner peripheral surface shape as the rear insertion hole 82, and is formed in a substantially oblong shape whose up-down dimension is larger than the left-to-right dimension. Thus, the gap between the inner peripheral surface of the front insertion hole 102 and the opposing surface of the outer peripheral surface of the first bolt 122 is a substantially annular front gap 106, and the up-down dimension β of the radial width dimension of the front gap 106 is larger than the left-to-right dimension α. ​​In addition, in the first embodiment, the protruding top end surface (front end surface) of the cylindrical part 104 is a substantially annular flat surface 108.

[0042] Furthermore, an assembly portion 88 is provided at the left-right center portion of the front end portion of the second main body portion 100, similarly to the first holding portion 72. That is, in the second holding portion 74, the assembly portion 88 also includes upper protrusions 90 on the left and right sides and a connecting portion 92 connecting the protruding ends (upper ends) of the upper protrusions 90, and an assembly area 94 that is substantially rectangular when viewed from the front is formed by the area surrounded by the second main body portion 100, the upper protrusions 90, and the connecting portion 92.

[0043] In addition, screw fixing portions 110 are provided on the front surface of the second main body 100 on both left and right sides of the cylindrical portion 104, and fixing screws 136 described later are fastened to the screw fixing portions 110. In addition, front fixing portions 112 are provided at both ends in the left and right directions of the second main body 100, that is, on the left and right sides outside of each groove 78, and fixing bolts 116 described later are fixed to the front fixing portions 112. Bolt insertion holes for inserting the fixing bolts 116 are formed through each front fixing portion 112 in the front-to-back direction, and each front fixing portion 112 protrudes outward in the left and right directions from both ends in the left and right directions of the second main body 100. Receiving recesses 114 are formed at both ends in the left and right directions of the outer peripheral surface of the second main body 100, and the heads of each fixing bolt 116 are received in the receiving recesses 114.

[0044] The metal holder 24 is formed by overlapping the first holding portion 72 and the second holding portion 74 of the above-mentioned shape in a state where the electric wires 22 are clamped from both sides in the front-back direction, and bolting them with the fixing bolts 116. That is, the first holding portion 72 and the second holding portion 74 are fixed to each other by overlapping the rear fixing portions 98 of the first holding portion 72 and the front fixing portions 112 of the second holding portion 74 in the front-back direction, and the fixing bolts 116 are inserted through the front fixing portions 112 and fastened to the rear fixing portions 98. Thus, the holder bolt fixing portion 118 including the rear fixing portions 98 and the front fixing portions 112 and fixing the fixing bolts 116 is formed.

[0045] In addition, by fixing the first holding portion 72 and the second holding portion 74 to each other in this way, the circumferential end faces of the grooves 78 of the first holding portion 72 and the circumferential end faces of the grooves 78 of the second holding portion 74 are butted against each other in the front-rear direction, and the grooves 78 on both sides of the front and rear sides form the wire receiving holes 120 for clamping the wires 22. That is, by fixing the first holding portion 72 and the second holding portion 74 to each other, the two wire receiving holes 120, 120 for clamping the two wires 22, 22 are arranged side by side in the left-right direction. In addition, in the parallel direction (left-right direction) of the two wire receiving holes 120, 120, the retainer bolt fixing parts 118 are provided on both sides of each wire receiving hole 120.

[0046] Here, the first holding portion 72 and the second holding portion 74 are fixed in a state of clamping each wire 22, so that each pressing protrusion 80 of the first and second holding portions 72 and 74 presses each insulating coating 60 of each wire 22, causing the front and rear side portions of each insulating coating 60 to elastically deform. Figure 6 The double-dashed lines in the figure indicate the insulating covering parts 60 before being elastically deformed by the pressing protrusions 80. The insulating covering parts 60 elastically deformed by the pressing protrusions 80 may be deformed to bulge out to both sides in the left and right directions, for example, and the insulating covering parts 60 deformed to bulge out to both sides in the left and right directions may be in close contact with the inner peripheral surfaces on both sides of the left and right sides of the wire receiving holes 120.

[0047] Furthermore, by fixing the first holding portion 72 and the second holding portion 74 to each other, the rear insertion hole 82 of the first holding portion 72 and the front insertion hole 102 of the second holding portion 74 communicate with each other in the front-rear direction, thereby forming a first bolt insertion hole 124 for inserting the first bolt 122. And, by inserting the first bolt 122 through the first bolt insertion hole 124 and fixing it to the first bolt fixing portion 48 of the case 30 as the connection partner, the metal holder 24 is bolt-fastened to the case 30. Therefore, as the first bolt 122 is fastened, the surrounding portion of the metal holder 24, especially the first bolt insertion hole 124, is fixed to the case 30. Therefore, the first bolt fastening portion 76 of the metal holder 24 fastened to the box body 30 by bolts is composed of the surrounding portion of the first bolt insertion hole 124, such as the connecting portion 79 of the first holding portion 72 or the connecting portion 79 of the second holding portion 74, the cylindrical portion 104, etc. In other words, the first bolt insertion hole 124 is formed by penetrating the first bolt fastening portion 76 of the metal holder 24 in the front-rear direction.

[0048] Furthermore, when the first bolt 122 is inserted into the first bolt insertion hole 124, the rear gap 84 and the front gap 106 are connected to each other in the front-rear direction, and a substantially annular or substantially cylindrical first tolerance absorbing gap 126 is formed between the inner peripheral surface of the first bolt insertion hole 124 and the outer peripheral surface of the first bolt 122. Thus, when the first bolt 122 is fixed to the first bolt fixing portion 48, even when the first bolt insertion hole 124 and the first bolt fixing portion 48 are offset, the tolerance can be absorbed by displacing the first bolt 122 in the first tolerance absorbing gap 126. In particular, as described above, the radial width dimension β in the vertical direction of the first tolerance absorbing gap 126 (the rear gap 84 and the front gap 106) is larger than the radial width dimension α in the horizontal direction, so the tolerance in the vertical direction can be absorbed more effectively.

[0049] In the first embodiment, the lower part of the metal holder 24 is covered by the metal shield bracket 128. The shield bracket 128 has a stepped cylindrical wall portion 130, and a locking frame 132 protruding upward is provided on both sides of the left and right directions of the rear end of the cylindrical wall portion 130. In addition, a portion protruding upward is provided on both sides of the left and right directions of the front end of the cylindrical wall portion 130, and a screw hole 134 is formed in the protruding end portion facing upward. Then, the cylindrical wall portion 130 of the shield bracket 128 is externally inserted into the lower part of the metal holder 24, each locking protrusion 96 is locked to each locking frame 132, and the fixing screw 136 is fixed to each screw fixing portion 110 through each screw hole 134, thereby fixing the shield bracket 128 to the metal holder 24. In addition, a shielding member such as a metal braided wire (not shown) covering each electric wire 22 may be fixed to the cylindrical wall portion 130 of the shield bracket 128.

[0050] <Shielding case 26> The shield shell 26 is shaped to cover the substantially entire pair of connector housings 20, 20. That is, the shield shell 26 includes: a rear wall portion 138 that covers the rear of each connector housing 20; a front wall portion 140 that covers the front of each connector housing 20; a left wall portion 142 that covers the left connector housing 20 from the left; a right wall portion 144 that covers the right connector housing 20 from the right; and an upper wall portion 146 that covers the upper part of each connector housing 20. In addition, the shield shell 26 includes a partition portion 148 that is provided between the left and right directions of each connector housing 20 to partition the internal space of the shield shell 26 in the left and right directions.

[0051] A through window 150 is formed at the upper portion of the front wall 140 of the shield shell 26, which penetrates the front wall 140 in the front-rear direction, and an inner tube 152 and an outer tube 154 are provided at the periphery of the through window 150. In addition, a front retainer 158 having a through hole 156 is assembled to the inner tube 152. Thus, when the connector 10 and the mating connector 12 are connected, the columnar connection portion 32 of each mating terminal 16 is pressed into the cylindrical connection portion 50 of each terminal 14 through the through hole 156, the through window 150 and the insertion hole 68. In addition, an annular waterproof rubber 160 is inserted and assembled outside the inner tube 152.

[0052] Here, a second bolt insertion hole 164 is formed in the partition portion 148 of the shield shell 26 below the lower portion of the outer tube portion 154 and penetrates in the front-to-back direction, and the second bolt 162 is inserted into the second bolt insertion hole 164. Then, the shield shell 26 is bolted to the case 30 by inserting the second bolt 162 into the second bolt insertion hole 164 and fixing it to the second bolt fixing portion 46 of the case 30 as the connection partner. Therefore, with the tightening of the second bolt 162, the portion around the second bolt insertion hole 164 in the shield shell 26 is fixed to the case 30. Therefore, the second bolt fastening portion 166 of the shield shell 26 fastened to the case 30 by bolts is constituted by the portion around the second bolt insertion hole 164. In other words, the second bolt insertion hole 164 is formed by penetrating the second bolt fastening portion 166 of the shield shell 26 in the front-to-back direction.

[0053] In the first embodiment, a contact portion 168 protruding forward from the front wall portion 140 is provided at the position where the second bolt insertion hole 164 is formed, and the contact portion 168 has a substantially rectangular outer peripheral surface shape. In addition, a substantially circular recess 170 is formed in a substantially central portion of the contact portion 168 and is open to the front. The protruding top end surface (front end surface) of the contact portion 168 is a substantially annular flat surface 172.

[0054] In addition, an annular ring installation groove 174 opening toward the outer peripheral side is provided in the middle portion in the longitudinal direction of the second bolt 162. In the first embodiment, a C-type seal ring 176 is installed in the ring installation groove 174. When the C-type seal ring 176 is installed on the second bolt 162, the C-type seal ring 176 protrudes from the outer peripheral surface of the second bolt 162 toward the outer peripheral side in a substantially annular shape with a predetermined radial dimension. Thus, the second bolt 162 can be displaced in the front-rear direction relative to the second bolt insertion hole 164, and the second bolt 162 can be prevented from falling off from the second bolt insertion hole 164. In addition, the protruding dimension of the C-type seal ring 176 from the outer peripheral surface of the second bolt 162 toward the outer peripheral side is smaller than the radial width dimension of the recess 170. Thus, when the second bolt 162 is displaced rearward relative to the second bolt insertion hole 164 , the rear end of the C-shaped seal 176 abuts against the bottom surface of the recess 170 , thereby restricting displacement of the second bolt 162 relative to the second bolt insertion hole 164 .

[0055] In particular, in the first embodiment, the columnar connection portion 32 of each of the other-side terminals 16 is pressed into the cylindrical connection portion 50 of each of the terminals 14 by the tightening force of the second bolt 162 when the second bolt fastening portion 166 is bolted to the other-side connection (box 30). That is, the connector 10 of the first embodiment is a so-called bolt-assisted type connector, and each of the terminals 14 is fitted into each of the other-side terminals 16 by bolting the second bolt fastening portion 166 to the other-side connection (box 30). In addition, since the second bolt 162 can be displaced relative to the second bolt insertion hole 164 and cannot fall off, the second bolt 162 can be displaced backward when the second bolt 162 contacts the opening of the second bolt fixing portion 46. Therefore, the possibility that the portion of the second bolt 162 protruding forward interferes with the pressing operation of each of the terminals 14 into each of the other-side terminals 16 can be reduced. In addition, the pressing operation of each terminal 14 into each other terminal 16 can be started while the second bolt 162 is screwed into the second bolt fixing portion 46 to a certain extent, which can reduce the possibility of the opening of the second bolt fixing portion 46 being damaged during the pressing operation.

[0056] <Assembled portion 178> Here, the lower end portions of the rear wall portion 138 and the front wall portion 140 of the shield shell 26 are provided with an assembled portion 178, and the assembled portion 178 is combined with each assembling portion 88 of the metal holder 24. Specifically, a concave storage portion 180 opening outward in the front-rear direction is formed in the left-right central portion of the lower end portions of the rear wall portion 138 and the front wall portion 140, and a substantially rectangular block-shaped assembly protrusion 181 protruding outward in the front-rear direction is provided at the lower end portion of the bottom surface of the storage portion 180. And, as Figure 8As shown, the first holding portion 72 and the second holding portion 74 overlap with the lower end portion of the shield shell 26 from the outside in the front-back direction, each assembly portion 88 is accommodated in each storage portion 180, and each assembly protrusion 181 is inserted into each assembly area 94. Therefore, in the first embodiment, the assembled portion 178 including the storage portion 180 and the assembly protrusion 181 and combined with the assembly portion 88 is configured. These assembled portions 178 and the storage portion 180 have predetermined dimensions in the up-down, left-right, and front-back directions.

[0057] That is, Figure 4 As shown, the vertical separation distance D1 between the upper inner surface of the storage portion 180 and the assembly protrusion 181 is larger than the vertical dimension D2 of the connecting portion 92 of the assembly portion 88. Thus, when each assembly portion 88 and each assembled portion 178 are combined and each assembly protrusion 181 is inserted into each assembly area 94, a predetermined size A1 or A2 (both refer to the vertical dimension D2) is formed between the opposing surfaces of the assembly portion 88 and the assembled portion 178 (between the upper inner surface of the storage portion 180 and the opposing surface of the upper end surface of the connecting portion 92, or between the opposing surface of the lower end surface of the connecting portion 92 and the upper end surface of the assembly protrusion 181) in the vertical direction. Figure 4 ) The gap is a first tolerance absorbing gap 182 between the opposing surfaces of each assembling portion 88 and each assembled portion 178.

[0058] In addition, if Figure 5 As shown in the enlarged view on the left side of the drawing, on either side in the left-right direction, the left-right direction separation distance D3 between the left-right direction inner surface of the storage portion 180 (for example, the left inner surface) and the assembly protrusion 181 is greater than the left-right direction dimension D4 of the upper protrusion 90 of the assembly portion 88. Thus, in a state where each assembly portion 88 and each assembled portion 178 are combined and each assembly protrusion 181 is inserted into each assembly area 94, a predetermined size B1 or B2 (both refer to FIG. 1 ) is formed in the left-right direction between the opposing surfaces of the assembly portion 88 and the assembled portion 178 (between the left-right direction outer inner surface of the storage portion 180 and the left-right direction outer surface of the upper protrusion 90, or between the left-right direction inner surface of the upper protrusion 90 and the left-right direction outer surface of the assembly protrusion 181). Figure 5 This gap is also the first tolerance absorbing gap 182 between the opposing surfaces of each assembly portion 88 and each assembled portion 178.

[0059] Thus, the first tolerance absorbing gap 182 is provided between each assembly part 88 and each assembled part 178, and the first tolerance absorbing gap 182 expands in the same direction as the first tolerance absorbing gap 126 between the first bolt 122 and the first bolt insertion hole 124, that is, in the up-down direction and the left-right direction. Thus, in a state where each assembly part 88 and each assembled part 178 are combined and the metal holder 24 is assembled to the shielding shell 26, the assembly protrusion 181 can be displaced in the up-down direction or the left-right direction within the assembly area 94. Furthermore, the metal holder 24 can be displaced in the up-down direction and / or the left-right direction relative to the shielding shell 26 by the amount by which the assembly protrusion 181 can be displaced in the assembly area 94, for example, by the amount of the gap size A2 in the up-down direction or by the amount of the gap size B2 in the left-right direction. Therefore, the metal holder 24 is assembled relative to the shielding shell 26 in a manner that the first tolerance absorbing gap 182 can be displaced.

[0060] Furthermore, if Figure 5 As shown in the enlarged view on the right side of the figure, the depth dimension (front-back dimension) D5 of the storage section 180 is larger than the front-back dimension D6 of the assembly section 88 (upper protrusion 90 and connection section 92). As a result, when each assembly section 88 and each assembled section 178 are combined and each assembly protrusion 181 is inserted into each assembly area 94, a predetermined size C is formed in the front-back direction between the opposing surfaces of the assembly section 88 and the assembled section 178 (between the bottom surface of the storage section 180 and the opposing surfaces of the front surfaces of the upper protrusion 90 and the connection section 92) (see Figure 5 This gap is a second tolerance absorbing gap 184 extending in the bolt tightening direction (front-rear direction) of the first bolt 122 in the first bolt tightening portion 76.

[0061] As a result, when the metal holder 24 is assembled to the shield shell 26 by combining the assembling portions 88 and the assembled portions 178, the metal holder 24 can be displaced in the front-rear direction by the size C of the second tolerance absorbing gap 184 relative to the shield shell 26. Therefore, the metal holder 24 is assembled to the shield shell 26 so as to be displaceable by the second tolerance absorbing gap 184.

[0062] <Assembly of Connector 10> Hereinafter, a specific example of the assembly method of the connector 10 will be described. In addition, the assembly method of the connector 10 is not limited to the form described below.

[0063] First, the core wire 58 exposed by stripping the insulating coating 60 at the terminal of each electric wire 22 is fixed to the electric wire fixing portion 56 of each terminal body 52, and each clamp spring 54 is mounted on the upper end of each terminal body 52. ​​Thus, each terminal 14 is fixed to the terminal of each electric wire 22. Then, each waterproof rubber 70 is inserted outside each electric wire 22.

[0064] Next, each electric wire 22 assembled with each terminal 14 and each waterproof rubber 70 is inserted from the lower opening of each connector housing body 64. After each terminal 14 is inserted to a predetermined position, each terminal 14 is fixed to a predetermined position in each terminal receiving portion 62 of each connector housing 20 by assembling the connector housing cover 66 to the connector housing body 64. Then, each connector housing 20 assembled with each terminal 14 is inserted from the lower opening of the shield shell 26, and each connector housing 20 is fixed to the shield shell 26 by, for example, concave-convex fitting. In addition, the front retainer 158 is assembled to the inner cylindrical portion 152 of the shield shell 26 from the front.

[0065] Then, if Figure 8 As shown in the figure, the first holding part 72 and the second holding part 74 are arranged opposite to each other in the front-to-back direction in such a manner that the electric wires 22 extending downward from the shield shell 26 are clamped from both the front and back sides. Then, while the assembly parts 88 of the first and second holding parts 72 and 74 are combined with the assembled parts 178 of the shield shell 26, the first main body part 77 of the first holding part 72 and the second main body part 100 of the second holding part 74 are overlapped. And, by inserting the fixing bolts 116 through the front fixing parts 112 and fastening them to the rear fixing parts 98, the first holding part 72 and the second holding part 74 are fixed to each other by bolting in the fixing bolt fixing parts 118. Thus, the metal holding part 24 is assembled to the shield shell 26. Next, each wire 22 is inserted into the tube wall portion 130 of the shielding bracket 128, the lower part of the metal retaining member 24 is covered with the tube wall portion 130, each locking protrusion 96 is locked to each locking frame 132, and each fixing screw 136 is fixed to each screw fixing portion 110 through each screw hole 134.

[0066] In addition, the second bolt 162 is inserted from the rear into the second bolt insertion hole 164 of the shield shell 26. As a result, the front portion of the second bolt 162 protrudes forward from the shield shell 26, and the C-shaped seal ring 176 is assembled from the side (in a direction perpendicular to the front-rear direction) into the ring mounting groove 174 of the second bolt 162. As a result, the connector 10 is completed.

[0067] like Figure 7As shown in the figure, the connector 10 assembled in this way is arranged opposite to the counterpart connector 12 having the box body 30 to be connected to the counterpart in the front-back direction. Then, the connector 10 and the counterpart connector 12 are brought close to each other, and the second bolt 162 is fixed to the second bolt fixing portion 46 of the box body 30. Thus, the second bolt fastening portion 166 in the connector 10 is bolted to the box body 30, and the columnar connecting portion 32 of each counterpart terminal 16 in the counterpart connector 12 is pressed into the cylindrical connecting portion 50 of each terminal 14 in the connector 10. As a result, the connector 10 and the counterpart connector 12 are in an electrically conductive state.

[0068] Then, the first bolt 122 is inserted through the first bolt insertion hole 124 of the metal holder 24 and fixed to the first bolt fixing portion 48 of the housing 30. Thus, the first bolt fastening portion 76 of the metal holder 24 is bolted to the housing 30. As a result, the connection between the connector 10 and the mating connector 12 is completed.

[0069] When the connection between the connector 10 and the counterpart connector 12 is completed, Figure 4 As shown, the front end surface (flat surface 108) of the cylindrical portion 104 protruding forward from the metal holder 24, the front end surface (flat surface 172) of the contact portion 168 protruding forward from the shield shell 26, and the front end surface of the outer cylindrical portion 154 of the upper portion of the shield shell 26 are in close contact with the rear surface of the rectangular plate portion 42 of the box body 30 without a gap. As a result, the shielding path from the metal holder 24 or the shield shell 26 to the box body 30 can be stably ensured.

[0070] In the connector 10 having the above-described structure, the holder for holding the wires 22 drawn out from the wire outlet 18 of each connector housing 20 is made of metal, and the first bolt fastening portion 76 is provided in the metal holder 24, and the first bolt fastening portion 76 is bolted to the box 30 on the other side of the connection. As a result, compared with the case where the holder is made of synthetic resin, a larger axial force (tightening force) of the bolt can be applied to the first bolt fastening portion 76, and even in a high temperature environment, aging of the resin in the bolt fastening portion can be suppressed. As a result, the possibility of a gap between the metal holder 24 and the wires 22 can be reduced, and the external force of the wires 22 input due to the vibration of the vehicle can be prevented from being applied to the connection portion between each terminal 14 and each other-side terminal 16.

[0071] In addition, a first tolerance absorbing gap 182 is provided between the facing surfaces of each assembly portion 88 and each assembled portion 178, and a first tolerance absorbing gap 126 is provided in the first bolt insertion hole 124 and around the first bolt 122. These first tolerance absorbing gaps 126 and 182 expand in the same direction, respectively, and in Embodiment 1, the first tolerance absorbing gaps 126 and 182 expand in the up-down direction and the left-right direction. Furthermore, due to the first tolerance absorbing gap 182 between the facing surfaces of each assembly portion 88 and each assembled portion 178, the shielding shell 26 and the metal holder 24 can be relatively displaced before the first bolt 122 is tightened. As a result, when the first bolt fastening portion 76 of the metal holder 24 is bolted to the box body 30, even when the first bolt insertion hole 124 and the first bolt fixing portion 48 are misaligned, the tolerance can be absorbed by the first tolerance absorbing gap 182, and the first bolt 122 can be stably fastened. In addition, since the first tolerance absorbing gap 126 is also provided in the first bolt insertion hole 124, the position of the first bolt 122 can be adjusted in the first bolt insertion hole 124, and the first bolt 122 can be further stably fastened. In particular, in the first embodiment, since the first tolerance absorbing gaps 126 and 182 expand in the up-down direction and the left-right direction, the tolerances in these two directions can be absorbed.

[0072] A second tolerance absorbing gap 184 is provided between the opposing surfaces of each assembly portion 88 and each assembled portion 178, and the metal holder 24 is displaceable in the front-rear direction by the second tolerance absorbing gap 184 relative to the shield shell 26 ( Figure 5 C) in the above. Thus, in addition to the two directions of the up-down direction and the left-right direction, the tolerance in the front-to-back direction can also be absorbed. In particular, in Embodiment 1, the cylindrical portion 104 protrudes forward from the metal retainer 24, and the flat surface 108 as the protruding top end surface (front end surface) of the cylindrical portion 104 contacts the rear surface of the rectangular plate portion 42 of the box body 30 to form a shielding path. Therefore, by making the metal retainer 24 displaceable in the front-to-back direction relative to the shielding shell 26, the flat surface 108 and the rectangular plate portion 42 can be more reliably contacted, and the shielding path can be formed more stably.

[0073] The shielding shell 26 includes a second bolt fastening portion 166, and the second bolt fastening portion 166 is bolted to the box body 30 as the connecting partner. That is, the connector 10 is bolted to the box body 30 as the connecting partner at two locations, the first bolt fastening portion 76 and the second bolt fastening portion 166, which are separated from each other in the vertical direction. That is, for example, in the case where the connector is fixed to the box body of the connecting partner only at one or two locations in the upper part, when a large vibration is input to the wire from the outside, the connector will vibrate together with the wire, and there is a possibility that the vibration from the outside cannot be blocked. However, by fastening the connector 10 to the box body 30 at two locations separated from each other in the vertical direction as in the first embodiment, the vibration of the connector 10 relative to the box body 30 can be suppressed, and the external force can be blocked more reliably. In addition, by providing a second bolt fastening portion 166 at the upper portion of the connector 10, the front end surface (flat surface 172) of the contact portion 168 or the front end surface of the outer tube portion 154 can more reliably contact the rear surface of the rectangular plate portion 42, thereby forming a shielding path more stably.

[0074] By bolting the second bolt fastening portion 166 to the box body 30 as the other side of the connection, the terminal 14 is fitted to the other side terminal 16. That is, even when the terminal 14 and the other side terminal 16 need to contact with a higher contact pressure due to the increase in current, the columnar connection portion 32 of the other side terminal 16 can be pressed into the cylindrical connection portion 50 of the terminal 14 by the tightening force of the second bolt 162, and the connection operation efficiency of the connector 10 and the other side connector 12 can be improved. In particular, by providing the second bolt 162 for fastening the second bolt fastening portion 166 near the connection portion between the columnar connection portion 32 and the cylindrical connection portion 50, the columnar connection portion 32 can be efficiently pressed into the cylindrical connection portion 50 along with the tightening of the second bolt 162, and the second bolt 162 can be provided separately in the upper and lower directions relative to the first bolt 122 (first bolt fastening portion 76). As a result, as described above, the external force blocking effect can be more reliably exerted.

[0075] In the parallel direction (left-right direction) of the two wire receiving holes 120, 120, the first bolt fastening portion 76 is provided between the two wire receiving holes 120, 120, and a pair of retainer bolt fixing portions 118, 118 are provided on both sides of the two wire receiving holes 120, 120. Thus, the first retainer 72 and the second retainer 74 can be fixed at three locations, namely, the left-right end portions and the left-right center portion, and each wire 22 can be stably clamped by the pair of grooves 78, 78 constituting each wire receiving hole 120. In particular, while the fixing bolt 116 is inserted from the front to the rear into each retainer bolt fixing portion 118, the first bolt 122 is inserted from the rear to the front into the first bolt insertion hole 124. Thus, for example, when an external force caused by vibration or the like acts in a direction to loosen the bolts, since one of the three bolts (each fixing bolt 116 and the first bolt 122) is inserted in a different direction, loosening of all three bolts can be avoided, and the holding state of each wire 22 by the first holding portion 72 and the second holding portion 74 can be stably maintained.

[0076] <Modification> As a specific example of the present invention, the first embodiment is described in detail, but the present invention is not limited to this specific description. Variations and improvements within the scope of the present invention are included in the present invention. For example, the following variations of the embodiments are also included in the technical scope of the present invention.

[0077] (1) In the above embodiment, the first tolerance absorbing gaps 126 and 182 are provided at both the first bolt insertion hole 124 and the opposing surfaces between the assembly portion 88 and the assembled portion 178, but the first tolerance absorbing gap may be provided at either the first bolt insertion hole and the opposing surfaces between the assembly portion and the assembled portion, or may not be provided at either. In addition, in the above embodiment, the first tolerance absorbing gap 182 provided between the opposing surfaces between the assembly portion and the assembled portion 178 and the first tolerance absorbing gap 126 provided in the first bolt insertion hole 124 are both extended in the up-down direction and the left-right direction, but, for example, they may be extended in only one of the up-down direction and the left-right direction. In addition, the first tolerance absorbing gap provided between the opposing surfaces between the assembly portion and the assembled portion and the first tolerance absorbing gap provided in the first bolt insertion hole may be extended in different directions from each other. In the above embodiment, the second tolerance absorbing gap 184 extending in the front-rear direction is provided between the facing surfaces of the assembling portion 88 and the assembled portion 178 . However, the second tolerance absorbing gap is not essential in the connector of the present invention.

[0078] (2) In the above embodiment, the first bolt 122 is inserted into the first bolt insertion hole 124 from the rear to the front and is fastened to the first bolt fixing portion 48 in the housing 30, but the present invention is not limited to this embodiment. For example, a stud bolt protruding to the rear may be provided in the housing, or a bolt protruding from the front to the rear through the housing may be provided, and the bolt may be inserted into the first bolt insertion hole and fastened to a nut at the rear of the metal retainer. That is, the structure of the other side connector or housing that is connected to the other side is not limited, as long as it has a terminal on the other side connected to the terminal and a portion to which the first bolt fastening portion is fastened with a bolt.

[0079] (3) In the embodiment described above, the connector 10 is a bolt-assisted connector, but is not limited to this embodiment. The connector of the present invention can be directly engaged with the connector of the other side by manual operation by an operator, for example, the pressing force of the terminal of the other side onto the terminal can also be obtained by using a rod or the like. In addition, in the connector of the present invention, the second bolt fastening portion is not necessary. In the metal retaining part, it is sufficient to set the first bolt fastening portion that is bolted to the other side (box body). Even in the case of manual engagement or using a rod or the like, it is preferred that the second bolt fastening portion is set at a position separated in the vertical direction relative to the first bolt fastening portion. As a result, the two bolts of the connector of the present invention that are separated in the vertical direction can be fastened to the other side (box body) of the connection, and the external force blocking effect can be stably exerted.

[0080] (4) In the embodiment, the first retaining portion 72 and the second retaining portion 74 are fixed by a fixing bolt 116, but the present invention is not limited to this method. In addition to being fixed by bolts, the first retaining portion and the second retaining portion can also be fixed by any method such as tightening, locking and interlocking. In addition, even in the case where a fixing bolt is used as in the embodiment, the fixing bolt can be inserted in the opposite direction of the embodiment (from the rear to the front). In addition, the first retaining portion and the second retaining portion do not have to be separated from each other, and the first retaining portion and the second retaining portion can also be formed as a whole. For example, a hinge portion can also be provided at one end of the circumference of the first retaining portion and the second retaining portion so that the first retaining portion and the second retaining portion can be opened and closed, and after clamping the wire, the first retaining portion and the second retaining portion can be fixed to each other by a fixing mechanism provided at the other end of the circumference of the first retaining portion and the second retaining portion.

[0081] (5) The shape of the terminal 14 in the above embodiment is merely an example and is not limited. That is, in the above embodiment, the terminal 14 has a cylindrical connecting portion 50 for inserting the pin-shaped counterpart terminal 16, but is not limited to this form. The counterpart terminal may also be a flat protruding piece as described in International Publication No. 2021 / 145197, in which case the terminal only needs to have a substantially rectangular terminal insertion gap.

[0082] (6) In the above embodiment, a pair of connector housings 20, 20 are provided, and each of the connector housings 20 accommodates each of the terminals 14. However, the connector housings may be composed of a single member, or a plurality of (e.g., a pair of) terminals may be accommodated in one connector housing. In addition, in the connector of the present invention, the number of terminals or wires is not limited, and may be one or more than one. Description of Reference Numerals

[0083] 10 Connectors 12 Other side connector (to be connected to the other side) 14 terminals 16 Terminals on the other side 18 Wire outlet 20 Connector housing 22 Wire 24 Metal retainer 26 Shielding shell 28 Other side housing 30 Box (connected to the other side) 32 Column connection 34 Bolt insertion hole 36 Legs 38 Bolt 40 Waterproof rubber 42 Rectangular plate 44 Insert hole 46 Second bolt fixing part 48 1st bolt fixing part 50 cylindrical connection part 52 Terminal body 54 Clip Spring 56 Wire Fixing Department 58 core wire 60 Insulation coating 62 Terminal storage area 64 Connector housing body 66 Connector housing cover 68 Through hole 70 Waterproof Rubber 72 1st holding part 74 Second holding part 76 1st bolt fastening part 77 1st Main Body 78 Grooves 79 Connection 80 Pressing protrusion 82 Rear insertion hole 84 Rear clearance 86 Circular concave 88 Assembly Department 90 Upper protrusion 92 Connection 94 Assembly Area 96 locking protrusion 98 Rear fixing part 100 Second Main Body 102 Front insertion hole 104 cylindrical part 106 Front clearance 108 Flat surface 110 Screw fixing part 112 front fixing part 114 Storage recess 116 Fixing bolt 118 Retainer bolt fixing portion 120 Wire storage hole 122 1st bolt 122a Head 124 1st bolt insertion hole 126 (First bolt insertion hole) First tolerance absorption clearance 128 Shielding bracket 130 cylinder wall 132 Locking frame 134 Screw holes 136 Fixing screw 138 rear wall 140 front wall 142 Left wall 144 Right wall 146 Upper wall 148 Divider 150 Through Window 152 Inner tube 154 Outer tube 156 Through hole 158 front retainer 160 Waterproof rubber 162 2nd bolt 164 Second bolt insertion hole 166 Second bolt fastening part 168 Contact Department 170 Recess 172 Flat surface 174 ring mounting groove 176 C-type sealing ring 178 Assembled 180 Storage Department 181 Assembling the convex part 182 First tolerance absorption gap (between the facing surfaces of the assembly part and the assembled part) 184 2nd tolerance absorption gap

Claims

1. A connector, comprising: A connector housing having a wire lead-out port; A terminal, received in the connector housing; An electric wire connected to the terminal and led out from the electric wire lead-out port to the outside of the connector housing; as well as a metal retainer for retaining the electric wire led out from the electric wire lead-out port, The metal holder includes a first holding portion and a second holding portion that sandwich and hold the electric wire from both sides in a direction perpendicular to the axis of the electric wire and are fixed to each other, and includes a first bolt fastening portion that is bolt-fastened to a connecting partner.

2. The connector according to claim 1, wherein: further comprising a metal shielding shell covering the connector housing, The shield shell and the metal holder are assembled to each other by combining an assembling portion provided on one side with an assembled portion provided on the other side. The first tolerance absorbing gaps extending in the same direction are respectively provided between the facing surfaces of the assembling portion and the assembled portion and the first bolt insertion hole penetrating the first bolt fastening portion. The metal holder is assembled to the shield case so as to be displaceable by an amount corresponding to the first tolerance absorbing gap.

3. The connector according to claim 2, wherein: A second tolerance absorbing gap extending in the bolt tightening direction of the first bolt tightening portion is provided between the opposing surfaces of the assembling portion and the assembled portion. The metal holder is assembled to the shield case so as to be displaceable by an amount corresponding to the second tolerance absorbing gap.

4. The connector according to claim 2 or claim 3, wherein: The shield case includes a second bolt-fastening portion that is bolt-fastened to the connection partner.

5. The connector according to claim 4, wherein: By fastening the second bolt fastening portion to the connecting partner with a bolt, the terminal is fitted to the connecting partner terminal.

6. The connector according to any one of claims 1 to 3, wherein: The two terminals are housed in the connector housing, and the two wires respectively connected to the two terminals are led out from the wire lead-out port to the outside of the connector housing. The first holding portion and the second holding portion of the metal holding member each have a pair of grooves that are in close contact with the outer peripheral surface of the wire, and the first holding portion and the second holding portion are fixed to each other, so that the two wire receiving holes for clamping the two wires are arranged in parallel. The first bolt fastening portion is provided between the two wire receiving holes in the parallel direction of the two wire receiving holes, and a pair of retainer bolt fixing portions are provided on both sides of the two wire receiving holes.

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