Connector and connector unit

Abstract

The invention discloses a connector capable of suppressing the influence of the rotating force of a threaded part. A connector (10) is provided with: a connector housing (22) having a wire outlet (20); a terminal (16) housed in the connector housing (22); an electric wire (24) connected to the terminal (16) and led out from the electric wire outlet (20) to the outside of the connector housing (22); a screw part (26) which is screwed with a counterpart screw part (30) provided on the counterpart connector (14) side, and which generates a fitting force to the counterpart connector (14) by means of an axial force acting between the screw part (26) and the counterpart screw part (30); and an abutting portion (28) which can abut against an abutted portion (32) provided on the counterpart connector (14) side, the abutting portion (28) being provided closer to the electric wire (24) side than the threaded portion (26), and the abutting portion (28) abutting against the abutted portion (32) and preventing displacement of the connector housing (22) in the rotation direction of the threaded portion (26) in accordance with rotation of the threaded portion (26).

Description

Technical Field

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

[0002] In the past, in order to electrically connect vehicle-mounted devices, a connector unit was used to mate a connector connected to one device side with a mating connector connected to the other device side. In recent years, due to the large current of vehicle-mounted devices, the connectors have become larger, and the mating force required for the connectors to mate has also increased. Therefore, the following structure is proposed in Patent Document 1: when a connector is mated with a mating connector, a threaded portion (bolt, etc.) provided on the connector is screwed with a mating threaded portion (threaded hole) provided on the mating connector side, and the axial force acting between the threaded portions of both parties is used as the mating force. Prior art literature Patent Literature

[0003] Patent Document 1: Japanese Patent Application Publication No. 2021-18971 Summary of the invention Problems to be solved by the invention

[0004] However, in order to generate an axial force that can be used as a mating force between large connectors, the threaded parts of both parties are also enlarged, and the rotational force generated when screwing is also increased. Therefore, when the connector is mated with the other connector, the connector as a whole rotates due to the rotational force of the threaded part, and there is a possibility that the rotational force of the threaded part acts on the resin housing or terminal part of each connector. In particular, when the diameter of the wire is increased due to the high current of the vehicle-mounted parts, or the wire crimping part of the terminal is elongated in the extension direction of the wire, the wire side is more likely to vibrate than the threaded part due to the rotational force of the threaded part.

[0005] Therefore, a connector and a connector unit are disclosed that can suppress the influence of the rotational force of the threaded portion. Solutions to Solve Problems

[0006] The connector of the present invention comprises: 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; a threaded portion threadedly engaged with a mating threaded portion provided on the mating connector side, and generating an engagement force toward the mating connector by an axial force acting between the threaded portion and the mating threaded portion; and an abutment portion capable of abutting against an abutted portion provided on the mating connector side, the abutment portion being provided closer to the wire side than the threaded portion, and as the threaded portion rotates, the abutment portion abuts against the abutted portion to prevent the connector housing from shifting in the rotation direction of the threaded portion.

[0007] The connector unit of the present invention is formed by fitting a connector and a mating connector, wherein the connector is the connector of the present invention, and the mating connector has a mating threaded portion and an abutted portion, wherein the threaded portion is threadedly engaged with the mating threaded portion, and the abutting portion can abut against the abutted portion. Effects of the Invention

[0008] According to the connector and the connector unit of the present invention, the influence of the rotational force of the screw portion can be suppressed. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 This is a perspective view showing the connector unit according to the first embodiment. Figure 2 yes Figure 1 Rear view of the connector unit 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 It will constitute Figure 1 The connector unit shown in the figure is a perspective view showing a connector and a mating connector in a non-connected state. Figure 8 It is shown Figure 7 The longitudinal cross-sectional view of the connector and the mating connector in the middle of the connection is similar to Figure 4 The corresponding figure. Fig. 9 yes Figure 8 IX-IX section view in. Fig.10 Yes Figure 7 The connector is shown in an exploded perspective view with part of it exploded. Fig.11 It will constitute Figure 7 The first holding portion of the connector shown is a perspective view shown from the back side. Fig.12 yes Fig.11 A rear view of the first retaining portion shown. Fig.13 yes Figure 7 A perspective view of the mating connector is shown. DETAILED DESCRIPTION

[0010] <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) It comprises: 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; a threaded portion threadedly engaged with a mating threaded portion provided on a mating connector side, and generating a mating force toward the mating connector by an axial force acting between the threaded portion and the mating threaded portion; and an abutting portion capable of abutting against an abutted portion provided on the mating connector side, the abutting portion being provided closer to the wire side than the threaded portion, and with the rotation of the threaded portion, the abutting portion abuts against the abutted portion to prevent the connector housing from shifting in the rotation direction of the threaded portion.

[0011] According to the connector of the present invention, the abutment portion provided on the wire side relative to the threaded portion generating the mating force to the other connector abuts against the abutted portion provided on the other connector side as the threaded portion rotates, thereby preventing the connector housing from being displaced in the rotation direction of the threaded portion. Thus, in a connector of a type that utilizes the axial force acting between the threaded portion and the other threaded portion as the mating force of the connector to the other connector (so-called bolt-assisted type), the mating force generated by the screwing of the threaded portion can be utilized, and the influence of the rotation of the threaded portion that has been a problem in the past can be suppressed. In particular, by providing the abutment portion relative to the wire side relative to the threaded portion, the displacement of the wire side, which is prone to increase in vibration accompanying the rotation of the threaded portion, can be advantageously prevented, and the displacement of the connector housing accompanying the rotation of the threaded portion can be more reliably prevented.

[0012] (2) In the above (1), it is preferred that one of the abutting portion and the abutted portion is constituted by an outer peripheral surface of a convex portion protruding toward the other connector side in the axial direction of the threaded portion, and the other of the abutting portion and the abutted portion is constituted by an inner peripheral surface of a concave portion provided on the other connector side and accommodating the convex portion. The abutting portion or the abutted portion constituted by the outer peripheral surface of the convex portion protruding toward the other connector side in the axial direction of the threaded portion is surrounded throughout the entire circumference by the abutted portion or the abutting portion constituted by the inner peripheral surface of the concave portion accommodating the convex portion. Therefore, regardless of the direction, the displacement of the connector housing accompanying the rotation of the threaded portion is prevented by the abutment of the abutting portion relative to the abutted portion, and the displacement of the connector housing accompanying the rotation of the threaded portion can be further stably prevented through a simple structure.

[0013] (3) In the above (1) or (2), it is preferred that a metal retaining body is further provided, wherein the metal retaining body is connected to the connector housing and retains the wire led out from the wire lead-out port, and the abutment portion is integrally provided with the metal retaining body. Because the abutment portion is integrally provided with the metal retaining body that retains the wire led out from the wire lead-out port, the metal retaining body can be advantageously used to provide the abutment portion at a position farther from the wire side than the threaded portion. In addition, because the retaining body that retains the wire led out from the wire lead-out port is made of metal, the abutment portion integrally provided therewith can also be formed of metal. Therefore, the influence of the reaction force caused by the rotation of the threaded portion and the abutment with the abutted portion can be advantageously avoided, and the performance of preventing the connector housing from shifting by the abutment of the abutment portion relative to the abutted portion can be stably ensured.

[0014] (4) In the above (3), it is preferred that a metal shielding shell is further provided, the shielding shell covering the connector housing and connected to the connector housing, the shielding shell having a first fastening portion, the first fastening portion being provided with a first bolt insertion hole for inserting the first bolt having the threaded portion, the metal retaining body having a second fastening portion fastened to a fixed wall portion of the mating connector, the shielding shell and the metal retaining body being assembled to each other by combining an assembling portion provided on one of the shielding shell and the metal retaining body and an assembled portion provided on the other of the shielding shell and the metal retaining body, a first tolerance absorbing gap extending in a first direction being provided between opposing surfaces of the assembling portion and the assembled portion, the second bolt insertion hole for inserting the second fastening portion constituting the first tolerance absorbing gap extending in the first direction, and the metal retaining body being assembled relative to the shielding shell in a manner capable of being displaced by an amount corresponding to the first tolerance absorbing gap.

[0015] When a shield shell that suppresses noise from entering from the outside covers the connector housing and is connected to it, the metal retainer can be assembled to the shield shell by combining the assembly part with the assembled part, which can effectively prevent the metal retainer from being separated from the shield shell. In addition, since the metal retainer is fastened to the fixed wall part of the other connector (for example, a box of a device that accommodates and fixes the other connector) at the second fastening part, it is possible to effectively suppress or prevent the external force transmitted from the wire from being transmitted from the metal retainer to the terminal side. Moreover, there is a first tolerance absorbing gap extending in the first direction between the opposing surfaces of the assembly part and the assembled part, and the second bolt insertion hole for the second fastening part to penetrate constitutes the first tolerance absorbing gap extending in the first direction. The metal retainer is assembled relative to the shield shell in a manner that can be displaced by the amount of the first tolerance absorbing gap. As a result, the connector is engaged with the other connector by the rotation of the threaded part. After the first fastening part is fastened, when the second fastening part is fastened to the other fixed wall part, the tolerance can be absorbed by the first tolerance absorbing gap, and the bolt fastening of the metal retainer to the fixed wall part can be effectively performed.

[0016] In addition, the assembling portion and the assembled portion can be of any shape or structure as long as the metal retaining body can be assembled to the shielding shell. In addition, the direction in which the first tolerance absorbing gap expands (the first direction) can be arbitrarily set to a direction in which the tolerance may occur, such as the same direction as the extension direction of the wire, or a direction orthogonal to the extension direction of the wire. The first direction in which the first tolerance absorbing gap expands can be set to one direction or to multiple directions.

[0017] (5) In the above (3) or (4), it is preferred that the metal retaining body has a second fastening portion fastened to the fixed wall portion of the counterpart connector, the second fastening portion protruding toward the fixed wall portion along the axial direction of the threaded portion, and the abutting portion is constituted by the outer peripheral surface of the second fastening portion and can abut against the abutted portion provided on the fixed wall portion. Since the metal retaining body is fastened to the fixed wall portion of the counterpart connector (for example, a box of a device that accommodates and fixes the counterpart connector) at the second fastening portion, it is possible to advantageously suppress or prevent the external force transmitted from the electric wire from being transmitted from the metal retaining body to the terminal side. Furthermore, the outer peripheral surface of the second fastening portion that exerts the external force cutting performance can be cleverly utilized to provide the abutting portion that can abut against the abutted portion provided on the fixed wall portion of the counterpart connector, and the outer peripheral surface of the second fastening portion suppresses the transmission of the external force transmitted from the electric wire to the terminal side. Thus, a connector can be provided that prevents displacement of the connector housing in the rotation direction of the threaded portion with a small number of parts and has excellent performance in cutting off the external force transmitted from the electric wire.

[0018] (6) In the above (4), preferably, a second tolerance absorbing gap extending in the bolt tightening direction of the second fastening portion is provided between the opposing surfaces of the assembling portion and the assembled portion, and the metal retaining body is assembled relative to the shielding shell in a manner that can be displaced by the second tolerance absorbing gap. A second tolerance absorbing gap extending in the bolt tightening direction of the second fastening portion is provided between the opposing surfaces of the assembling portion and the assembled portion, and the metal retaining body is assembled relative to the shielding shell in a manner that can be displaced by the second tolerance absorbing gap. Thus, the connector is engaged with the other connector by rotation of the threaded portion, and after the first bolt fastening portion is tightened, when the second bolt fastening portion is connected to the other side of the connection, the tolerance can be absorbed by utilizing the second tolerance absorbing gap, and the bolt tightening of the metal retaining body to the other side of the connection can be advantageously performed.

[0019] The connector unit of the present invention, (7) A connector and a mating connector are mated, wherein the connector is any one of the connectors described in (1) to (6), wherein the mating connector has the mating threaded portion and the abutted portion, wherein the threaded portion is threadedly engaged with the mating threaded portion, and the abutting portion can abut against the abutted portion. By adopting the connector of the present invention, a connector unit that can exert any of the effects described in (1) to (6) can be provided.

[0020] <Details of Embodiments of the Invention> Hereinafter, specific examples of the connector of the present invention will be described with reference to the drawings. The present invention is not limited to these examples, but is indicated by the claims, and is intended to include all modifications within the meaning and scope equivalent to the claims.

[0021] <Implementation Method 1> Below, use Figures 1 to 13 The connector unit 10 according to the first embodiment of the present invention is described. The connector unit 10 is formed by fitting a connector 12 and a mating connector 14. The connector 12 includes a terminal 16, and the mating connector 14 includes a mating terminal 18. The terminals 16 and the mating terminals 18 are in contact with each other, so that the connector 12 and the mating connector 14 are in an electrically conductive state in the connector unit 10. The connector unit 10 can be arranged in any orientation, but it is assumed below 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, with respect to a plurality of identical components, sometimes only some of the components are denoted by reference numerals, and reference numerals are omitted for the other components.

[0022] <Connector 12> The connector 12 includes: a connector housing 22 having a wire lead-out port 20; a terminal 16 housed in the connector housing 22; and a wire 24 connected to the terminal 16 and led out from the wire lead-out port 20 to the outside of the connector housing 22. In addition, the connector 12 includes: a threaded portion 26 that is threadedly engaged with a later-described mating threaded portion 30 disposed on the side of the mating connector 14, and generates an engagement force toward the mating connector 14 by an axial force acting between the threaded portion 26 and the mating threaded portion 30; and an abutment portion 28 that can abut against a later-described abutted portion 32 disposed on the side of the mating connector 14. In embodiment 1, a pair of terminals 16, 16 are provided, and each terminal 16 is respectively housed in the connector housing 22. As Figure 2 As shown, the pair of terminals 16, 16 and the pair of connector housings 22, 22 are arranged to be separated from each other in the left-right direction.

[0023] <Mating connector 14> Also like Fig.13 As shown in the figure, the counterpart connector 14 includes: a counterpart terminal 18 connected to the terminal 16; a counterpart threaded portion 30 screwed with the threaded portion 26 on the connector 12 side; and a contacted portion 32 on which the contact portion 28 on the connector 12 side can contact. In addition, the counterpart connector 14 includes a counterpart housing 34 and a metal fixed wall portion 36. The counterpart housing 34 accommodates and holds the counterpart terminal 18, and the counterpart housing 34 is fixed to the fixed wall portion 36. In the first embodiment, since the connector 12 is provided with a pair of terminals 16, 16, the counterpart connector 14 includes a pair of counterpart terminals 18, 18, and these counterpart terminals 18 are arranged to be separated from each other in the left-right direction. The counterpart housing 34 holding these counterpart terminals 18 is fixed to the fixed wall portion 36 constituted by a box of a device not shown in the figure. And, in the counterpart housing 34 fixed to the fixed wall portion 36, each counterpart terminal 18 is held in a state of protruding to the rear.

[0024] In the first embodiment, each of the mating terminals 18 is a pin terminal, and each of the mating terminals 18 includes a columnar connecting portion 38. In addition, a bolt insertion hole 40 (see FIG. 4 ) is provided at the base end (front end) of each of the mating terminals 18. Figure 1 , Figure 3 , Figure 6 etc.), for example, each of the counterpart terminals 18 is fixed to a terminal portion of a device, etc., not shown, by a bolt, not shown, inserted through the bolt insertion hole 40.

[0025] These mating terminals 18 are fixedly held in the mating housing 34. In addition, the method for fixing the mating terminals 18 and the mating housing 34 is not limited, but in the first embodiment, the mating housing 34 is formed as an integrally formed product having the mating terminals 18 by molding the mating terminals 18 in the molding cavity when the mating housing 34 is molded. Fig.13 As shown in the figures, the counterpart housing 34 is integrally provided with a pair of legs 42, 42 protruding downward, and the counterpart housing 34 to which the counterpart terminals 18 are fixed is fixed to the fixed wall 36 by bolts 44 inserted through the legs 42. In addition, on the outer peripheral surface of the counterpart housing 34, an annular waterproof rubber 46 is inserted outside the portion inserted through the through hole 50 described later in the fixed wall 36.

[0026] The fixed wall portion 36 is composed of a box body of a device not shown in the figure, etc., and is extended in a flat plate shape when viewed from above. For convenience, the fixed wall portion 36 shown in each figure is represented as a rectangular plate portion 48 in which the main part is cut into a rectangle. An insertion hole 50 for the other housing 34 to be inserted is formed in the upper part of the rectangular plate portion 48. In addition, a first bolt fixing portion 52 is provided in the left-right center of the lower part of the rectangular plate portion 48 than the insertion hole 50, and the threaded portion 26 of the first bolt 108 described later is inserted into the first bolt fixing portion 52. The first bolt fixing portion 52 is a roughly cylindrical portion that opens to the rear, has a predetermined front-to-back dimension, and is formed on the inner circumferential surface with a counterpart threaded portion 30 as an internal thread that is screwed with the threaded portion 26 as an external thread.

[0027] Furthermore, a second bolt fixing portion 54 is provided at the left-right center of the portion below the first bolt fixing portion 52 in the rectangular plate portion 48, and an external thread 188 of a second bolt 184 described later is inserted into the second bolt fixing portion 54. The second bolt fixing portion 54 is a substantially cylindrical portion opened to the rear, has a predetermined dimension in the front-rear direction, and has an internal thread 56 formed on the inner circumferential surface. These first bolt fixing portion 52 and second bolt fixing portion 54 are provided to be separated from each other by a predetermined distance in the vertical direction.

[0028] In particular, a recessed portion 58 opening to the rear is provided around the opening of the second bolt fixing portion 54 on the rear end surface of the rectangular plate portion 48, and the second bolt fixing portion 54 is provided at the substantially central opening of the bottom surface 59 of the recessed portion 58. The recessed portion 58 is formed with an opening area larger than the opening of the second bolt fixing portion 54, and in the first embodiment, the recessed portion 58 is formed in a substantially oblong shape with a vertical dimension larger than a horizontal dimension. And, as described later, including the inner peripheral surface of the recessed portion 58, the abutted portion 32 with which the abutting portion 28 on the connector 12 side can abut is formed. In addition, the bottom surface 59 of the recessed portion 58 is an annular flat surface having a predetermined radial dimension.

[0029] <Terminal 16> In Embodiment 1, the other terminal 18 is a pin terminal, and the specific structure of the terminal 16 is not limited as long as it has a cylindrical connection portion 60 into which the columnar connection portion 38 of the other terminal 18 is pressed. 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 16 of Embodiment 1 includes a terminal body 62 and a clip spring 64 as an elastic member assembled at the top end (upper end) of the terminal body 62. In addition, a wire fixing portion 66 for fixing each wire 24 is provided at the base end (lower end) of each terminal body 62.

[0030] Each electric wire 24 is a covered electric wire, and is composed of a core wire 68 and an insulating coating 70 made of synthetic resin that covers the core wire 68 over substantially the entire length. The insulating coating 70 is stripped off at the terminal of each electric wire 24 to expose the core wire 68, and the exposed core wire 68 is fixed to the wire fixing portion 66 of each terminal body 62, thereby connecting each terminal body 62 and each electric wire 24. In addition, the fixing method of the wire fixing portion 66 and the core wire 68 is not limited, and it can be adhesive, welding, etc., or crimping using a crimping piece.

[0031] <Connector Housing 22> like Figure 2 , 3 As shown, the connector housing 22 has a substantially rectangular cylindrical terminal housing portion 72, and the upper end portion of each electric wire 24 and each terminal 16 fixed to the terminal of each electric wire 24 are housed in the terminal housing portion 72. As described above, in Embodiment 1, a pair of connector housings 22, 22 are provided, and each connector housing 22 has a terminal housing portion 72. Each connector housing 22 (each terminal housing portion 72) 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 24 housed in each terminal housing portion 72 is led out to the external space through the lower opening portion of each connector housing 22 (each terminal housing portion 72), and the lower opening portion of each connector housing 22 constitutes the electric wire lead-out port 20 for leading out each electric wire 24. That is, the terminals 16 are housed in the two connector housings 22, 22, and the two electric wires 24, 24 connected to the two terminals 16 are led out to the outside of the connector housing 22 from each electric wire lead-out port 20.

[0032] In implementation mode 1, if Figure 3 As shown, each connector housing 22 is composed of a connector housing body 74 and a connector housing cover 76 assembled to the connector housing body 74. That is, a window portion penetrating in the thickness direction (front-rear direction) is provided in the upper portion of the wall portion on the front side of the connector housing body 74, and the connector housing cover 76 is assembled in a manner to cover the window portion. In addition, an insertion hole 78 is formed at a position corresponding to the cylindrical connection portion 60 of the terminal 16 in the connector housing cover 76, and when the connector 12 and the mating connector 14 described later are connected, the columnar connection portion 38 of the mating terminal 18 is inserted into the insertion hole 78.

[0033] <Shielding case 80> In addition, the connector 12 is further provided with a metal shielding shell 80, and the shielding shell 80 covers each connector housing 22 and is connected to each connector housing 22. The method of fixing each connector housing 22 and the shielding shell 80 is not limited, but in the first embodiment, as described later, each connector housing 22 is inserted into the inside from the lower opening of the shielding shell 80. And, for example, by fitting the concave and convex provided on the outer surface of each connector housing 22 and the inner surface of the shielding shell 80, each connector housing 22 is connected and fixed to the shielding shell 80.

[0034] In addition, an annular waterproof rubber 82 is inserted and mounted on the outside of each wire 24 led out downward from the wire lead-out port 20 of each connector housing 22 as described above, and each waterproof rubber 82 is inserted into the inside from the lower opening of the shield shell 80. Furthermore, a metal retaining body 128 described later is provided below each waterproof rubber 82, and the metal retaining body 128 retains each wire 24 led out from each wire lead-out port 20. In the first embodiment, the metal retaining body 128 is assembled to the lower opening of the shield shell 80, and the metal retaining body 128 can also prevent each waterproof rubber 82 from falling off.

[0035] The shield shell 80 is shaped to cover the substantially entire pair of connector housings 22, 22. That is, the shield shell 80 includes: a rear wall portion 84 that covers the rear of each connector housing 22; a front wall portion 86 that covers the front of each connector housing 22; a left wall portion 88 that covers the left connector housing 22 from the left; a right wall portion 90 that covers the right connector housing 22 from the right; and an upper wall portion 92 that covers the upper part of each connector housing 22. In addition, the shield shell 80 includes a partition portion 94 that is provided between the left and right directions of each connector housing 22 to partition the internal space of the shield shell 80 in the left and right directions.

[0036] A through window 96 is formed at the upper portion of the front wall 86 of the shield shell 80, penetrating the front wall 86 in the front-rear direction, and an inner tube 98 and an outer tube 100 are provided at the peripheral edge of the through window 96. In addition, a front retainer 104 having a through hole 102 is assembled to the inner tube 98. Thus, when the connector 12 and the mating connector 14 are connected, the columnar connection portion 38 of each mating terminal 18 is pressed into the cylindrical connection portion 60 of each terminal 16 through the through hole 102, the through window 96 and the insertion hole 78. In addition, an annular waterproof rubber 106 is inserted and assembled outside the inner tube 98.

[0037] Here, a first bolt insertion hole 110 is formed in the partition portion 94 of the shield shell 80 below the lower portion of the outer tube portion 100 and penetrates in the front-rear direction, and a first bolt 108 having a threaded portion 26 is inserted through the first bolt insertion hole 110. Then, the shield shell 80 is bolted to the fixed wall portion 36 by inserting the first bolt 108 through the first bolt insertion hole 110 and fixing it to the first bolt fixing portion 52 of the fixed wall portion 36 as the connecting partner. Therefore, as the first bolt 108 is fastened, the portion around the first bolt insertion hole 110 in the shield shell 80 is fixed to the fixed wall portion 36. Therefore, the first fastening portion 111 in the shield shell 80, through which the threaded portion 26 (first bolt 108) is inserted and bolted to the fixed wall portion 36, is formed by the portion around the first bolt insertion hole 110. In other words, the first bolt insertion holes 110 are formed through the first fastening portion 111 of the shield case 80 in the front-rear direction, and the first fastening portion 111 has the first bolt insertion holes 110 through which the first bolts 108 are inserted.

[0038] In the first embodiment, a contact portion 112 is provided at the position where the first bolt insertion hole 110 is formed, and the contact portion 112 has a substantially rectangular outer peripheral surface shape. In addition, a substantially circular recess 114 is formed in a substantially central portion of the contact portion 112 and is open to the front. The protruding top end surface (front end surface) of the contact portion 112 is a substantially annular flat surface 116.

[0039] In addition, an annular ring mounting groove 118 opened on the outer peripheral side is provided in the middle portion in the longitudinal direction of the first bolt 108. In the first embodiment, a C-shaped ring 120 is mounted in the ring mounting groove 118. When the C-shaped ring 120 is mounted on the first bolt 108, the C-shaped ring 120 is substantially annular and protrudes from the outer peripheral surface of the first bolt 108 to the outer peripheral side with a predetermined diameter and width. Thus, the first bolt 108 can be displaced in the front-back direction relative to the first bolt insertion hole 110, and the first bolt 108 can be prevented from falling off from the first bolt insertion hole 110. In addition, the protruding dimension of the C-shaped ring 120 from the outer peripheral surface of the first bolt 108 to the outer peripheral side is smaller than the radial width dimension of the recess 114. Thus, when the first bolt 108 is displaced rearward relative to the first bolt insertion hole 110, the rear end of the C-shaped ring 120 abuts against the bottom surface of the recess 114, thereby restricting the displacement of the first bolt 108 relative to the first bolt insertion hole 110. In addition, in the first embodiment, the first bolt 108 is provided with a threaded portion 26 as an external thread on the tip side (front end side) of the mounting position of the C-shaped ring 120 (the formation position of the ring mounting groove 118).

[0040] In particular, in the first embodiment, the columnar connection portion 38 of each counterpart terminal 18 is pressed into the cylindrical connection portion 60 of each terminal 16 by the tightening force of the first bolt 108 when the first fastening portion 111 is bolted to the fixed wall portion 36 as the connection partner. That is, the connector 12 of the first embodiment is a so-called bolt-assisted type connector, and each terminal 16 is fitted with each counterpart terminal 18 by bolting the first fastening portion 111 to the fixed wall portion 36 as the connection partner. In addition, since the first bolt 108 can be displaced relative to the first bolt insertion hole 110 and cannot fall off, the first bolt 108 can be displaced backward when the first bolt 108 contacts the opening of the first bolt fixing portion 52. Therefore, the possibility that the portion of the first bolt 108 protruding forward interferes with the operation of pressing each terminal 16 into each counterpart terminal 18 can be reduced. In addition, when the first bolt 108 is screwed to the first bolt fixing portion 52 to a certain extent, the operation of pressing each terminal 16 into each mating terminal 18 can be started, and the possibility of the opening of the first bolt fixing portion 52 being damaged during the pressing operation can be reduced.

[0041] <Assembled portion 122> Here, at the lower end of the rear wall 84 and the front wall 86 of the shield shell 80, there are provided the assembled portion 122 to be combined with each assembling portion 150 of the metal retaining body 128 described later. Specifically, a concave receiving portion 124 opening outward in the front-rear direction is formed at the left-right center of the lower end of the rear wall 84 and the front wall 86, and a substantially rectangular block-shaped assembling protrusion 126 protruding outward in the front-rear direction is provided at the lower end of the bottom surface of the receiving portion 124. And, as described later, the first holding portion 130 and the second holding portion 132 overlap with the lower end of the shield shell 80 from the front-rear direction outside, and each assembling portion 150 is accommodated in each receiving portion 124, and each assembling protrusion 126 is inserted into each assembling area 156. Therefore, in the first embodiment, the assembled portion 122 to be combined with the assembling portion 150 is constituted including the receiving portion 124 and the assembling protrusion 126. The storage portion 124 and the assembly protrusion 126 have predetermined dimensions in each of the up-down, left-right, and front-back directions.

[0042] <Metal retainer 128> In addition, the connector 12 further includes a metal retaining body 128, which is connected to each connector housing 22 and holds each wire 24 drawn out from each wire lead-out port 20. In the first embodiment, the metal retaining body 128 is connected to each connector housing 22 via the shield shell 80. The metal retaining body 128 includes a first retaining portion 130 on the rear side and a second retaining portion 132 on the front side, which sandwich and hold each wire 24 from both sides of the axis perpendicular to the axis of each wire 24 (both sides in the front and rear directions) and fix each wire 24 to each other. In addition, the metal retaining body 128 includes a second fastening portion 134, and the second fastening portion 134 is bolted to the fixed wall portion 36 on the connection partner side by a second bolt 184 described later.

[0043] Also like Fig.11 , 12 As shown in the figures, the first holding part 130 includes a first main body 136 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 138 is formed on the front surface of the first main body 136 and is open to the front in a substantially semicircular cross-sectional shape. The groove 138 extends in the up-down direction, and the inner peripheral surface of the groove 138 is in close contact with the outer peripheral surface of each wire 24 (the outer peripheral surface of the insulating coating 70) when the metal holding body 128 is fixed to each wire 24. In the first embodiment, since the pair of wires 24, 24 are provided to be separated from each other in the left-right direction, the pair of grooves 138, 138 are provided to be separated from each other in the left-right direction in the first holding part 130. In addition, the pair of grooves 138, 138 are connected by a connecting part 140 at the central part in the left-right direction of the first main body 136. Furthermore, each concave groove 138 has a larger dimension in the up-down direction than the first main body portion 136 , and a semi-cylindrical portion constituting each concave groove 138 protrudes downward from the first main body portion 136 and is formed integrally therewith.

[0044] In addition, in the first embodiment, Figure 3 As shown, a pressing protrusion 142 protruding toward the inner circumference side (radially inward) is provided at the upper portion of the inner circumference of each groove 138. Each pressing protrusion 142 is formed with a predetermined vertical dimension and circumferential dimension.

[0045] In addition, a rear insertion hole 144 is formed in the left-right central portion (connection portion 140) of the first main body portion 136, and a second bolt 184 described later is inserted through the rear insertion hole 144. The rear insertion hole 144 penetrates the connection portion 140 in the front-to-back direction, as shown in FIG. Fig.12 As shown, the inner peripheral surface has a substantially oblong shape with a vertical dimension larger than a horizontal dimension. Fig.12In FIG. 1 , the second bolt 184 inserted into the rear insertion hole 144 is indicated by a double-dashed line. The inner diameter of the rear insertion hole 144 is larger than the outer diameter of the second bolt 184, and the gap between the inner peripheral surface of the rear insertion hole 144 and the outer peripheral surface of the second bolt 184 is a substantially annular rear gap 146. The radial width of the rear gap 146 is formed such that the vertical dimension β (refer to Fig.12 ) than the left-right dimension α (reference Fig.12 ) is large. In addition, a circular recess 148 opening toward the rear is formed on the rear surface of the first main body 136, and the bottom surface of the circular recess 148 is connected to the rear insertion hole 144. When the second bolt 184 is inserted into the rear insertion hole 144, the head 185 of the second bolt 184 is received in the circular recess 148.

[0046] <Assembly Section 150> In addition, an assembly portion 150 is provided protruding upward at the center of the rear end portion of the first main body 136 in the left-right direction, and is assembled with the assembled portion 122 of the shield shell 80. The metal retainer 128 is assembled to the shield shell 80 by combining the assembly portion 150 and the assembled portion 122. In the first embodiment, the assembly portion 150 is in a substantially rectangular frame shape, and includes upper protruding portions 152 on both left and right sides protruding upward from the first main body 136, and a connecting portion 154 connecting the protruding ends (upper ends) of the upper protruding portions 152. Thus, an assembly area 156 having a substantially rectangular shape in a front view is formed in an area surrounded by the first main body 136, the upper protruding portions 152, and the connecting portion 154, and the assembly area 156 has a larger left-right dimension than a vertical dimension.

[0047] Furthermore, locking protrusions 158 projecting rearward are provided on the rear surface of the first main body 136 on both left and right sides of the circular recess 148. In addition, rear fixing portions 160 are provided at both ends in the left and right directions of the first main body 136, that is, on the left and right outer sides of each recess 138, and fixing bolts 178 described later are fixed to the rear fixing portions 160. Each rear fixing portion 160 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 136. An internal thread that is screwed into the external thread of the fixing bolt 178 is formed on the inner circumferential surface of each of these rear fixing portions 160.

[0048] The second holding portion 132 is generally in the same shape as the first holding portion 130, and includes a second main body portion 162 that is substantially rectangular in a plan view. A pair of grooves 138, 138 are provided on both sides of the rear surface of the second main body portion 162 in the left and right directions, and these grooves 138 are connected by a connecting portion 140. In the first embodiment, in the second holding portion 132, each pressing protrusion 142 that protrudes toward the inner peripheral side (radially inward) is also provided on the upper portion of the inner peripheral surface of each groove 138.

[0049] In addition, a front insertion hole 164 is formed in the middle portion (connection portion 140) in the left-right direction of the second main body portion 162, and a second bolt 184 described later is inserted through the front insertion hole 164. In particular, a cylindrical portion 166 as a convex portion is integrally provided in the connection portion 140 of the second main body portion 162, and the cylindrical portion 166 protrudes toward the fixed wall portion 36 located in the front in the front-back direction, which is the axial direction of the threaded portion 26. Furthermore, the front insertion hole 164 is formed by penetrating these connection portions 140 and the cylindrical portion 166 in the front-back direction. The front insertion hole 164 has the same inner peripheral surface shape as the rear insertion hole 144, and is a substantially oval shape with a vertical dimension larger than a horizontal dimension. Thus, the gap between the inner peripheral surface of the front insertion hole 164 and the opposing surface of the outer peripheral surface of the second bolt 184 is a substantially annular front gap 168, and the radial width dimension of the front gap 168 is such that the vertical dimension β is larger than the horizontal dimension α. ​​In the first embodiment, the protruding top end surface (front end surface) of the cylindrical portion 166 is a substantially annular flat surface 170.

[0050] Furthermore, an assembly portion 150 is provided at the left-right center portion of the front end portion of the second main body portion 162, similarly to the first holding portion 130. That is, in the second holding portion 132, the assembly portion 150 also includes upper protrusions 152 on both sides and a connection portion 154 connecting the protruding ends (upper ends) of the upper protrusions 152, and an assembly region 156 that is substantially rectangular in front view is formed by the region surrounded by the second main body portion 162, the upper protrusions 152, and the connection portion 154.

[0051] In addition, screw fixing portions 172 are provided on the front surface of the second main body 162 across the left and right sides of the cylindrical portion 166, and fixing screws 204 described below are fastened to the screw fixing portions 172. In addition, front fixing portions 174 are provided at both ends in the left and right directions of the second main body 162, that is, at the outer side in the left and right directions of each groove 138, and fixing bolts 178 described below are fixed to the front fixing portions 174. Bolt insertion holes for inserting fixing bolts 178 are formed through each front fixing portion 174 in the front-to-back direction, and each front fixing portion 174 protrudes outward in the left and right directions from both ends in the left and right directions of the second main body 162. Receiving recesses 176 are formed at both ends in the left and right directions of the outer peripheral surface of the second main body 162, and the heads of each fixing bolt 178 are received in the receiving recesses 176.

[0052] The metal holding body 128 is formed by overlapping the first holding portion 130 and the second holding portion 132 of the above-mentioned shape in a state where the electric wires 24 are sandwiched from both sides in the front-back direction, and bolting them together with the fixing bolts 178. That is, the first holding portion 130 and the second holding portion 132 are mutually fixed by overlapping the rear fixing portions 160 of the first holding portion 130 and the front fixing portions 174 of the second holding portion 132 in the front-back direction, and the fixing bolts 178 are inserted through the front fixing portions 174 and fastened to the rear fixing portions 160. Thus, the holding body bolt fixing portion 180 fixed by the fixing bolts 178 is formed including the rear fixing portions 160 and the front fixing portions 174.

[0053] In addition, by fixing the first holding portion 130 and the second holding portion 132 to each other, the circumferential end faces of the grooves 138 of the first holding portion 130 and the circumferential end faces of the grooves 138 of the second holding portion 132 are butted against each other in the front-rear direction, and the grooves 138 on both sides of the front and rear sides constitute the wire receiving holes 182 for clamping the wires 24. That is, by fixing the first holding portion 130 and the second holding portion 132 to each other, the two wire receiving holes 182, 182 for clamping the two wires 24, 24 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 182, 182, each holding body bolt fixing portion 180 is provided on both sides of each wire receiving hole 182.

[0054] Here, the first holding portion 130 and the second holding portion 132 are fixed in a state of clamping each wire 24, so that each pressing protrusion 142 of the first and second holding portions 130, 132 presses each insulating coating 70 of each wire 24, causing the front and rear side portions of each insulating coating 70 to elastically deform. Figure 6The double-dotted dashed lines in the figure show the insulating covering portions 70 before being elastically deformed by being pressed by the pressing protrusions 142. The insulating covering portions 70 elastically deformed by the pressing protrusions 142 may, for example, bulge and deform to both sides in the left and right directions, and the insulating covering portions 70 bulge and deform to both sides in the left and right directions may also be in close contact with the inner peripheral surfaces on both sides of the left and right sides of the wire receiving holes 182.

[0055] Furthermore, by fixing the first holding portion 130 and the second holding portion 132 to each other, the rear insertion hole 144 of the first holding portion 130 and the front insertion hole 164 of the second holding portion 132 are connected to each other in the front-rear direction, thereby forming a second bolt insertion hole 186 for inserting the second bolt 184. And, by inserting the second bolt 184 through the second bolt insertion hole 186 and fixing it to the second bolt fixing portion 54 of the fixing wall portion 36 as the connecting partner, the metal holding body 128 is bolt-fastened to the fixing wall portion 36. That is, the external thread 188 that is screwed with the internal thread 56 of the second bolt fixing portion 54 is formed on the tip side (front end side) of the second bolt 184. Therefore, as the second bolt 184 is fastened, the surrounding portion of the metal holding body 128, especially the second bolt insertion hole 186, is fixed to the fixing wall portion 36. Therefore, the second fastening portion 134 of the metal retaining body 128 fastened to the fixed wall portion 36 by a bolt is composed of the surrounding portion of the second bolt insertion hole 186, for example, the connecting portion 140 of the first retaining portion 130 or the connecting portion 140 of the second retaining portion 132, the cylindrical portion 166, etc. In other words, the second bolt insertion hole 186 is formed by penetrating the second fastening portion 134 of the metal retaining body 128 in the front-rear direction.

[0056] Furthermore, when the second bolt 184 is inserted into the second bolt insertion hole 186 and the second fastening portion 134 is fastened to the fixed wall portion 36, the protruding tip (front end) of the cylindrical portion 166 of the second holding portion 132 enters the recessed portion 58 of the fixed wall portion 36, and the flat surface 170, which is the protruding tip surface of the cylindrical portion 166, and the bottom surface 59 of the recessed portion 58 overlap each other. Here, the protruding tip of the cylindrical portion 166 enters the recessed portion 58 by screwing the threaded portion 26 of the first bolt 108 and the mating threaded portion 30 of the first bolt fixing portion 52. Furthermore, as the cylindrical portion 166 enters the recessed portion 58, the connector housings 22, that is, the shield shell 80 connected to the connector housings 22, and the metal retaining body 128 rotate and displace with the rotation of the first bolt 108 (threaded portion 26), and this is prevented by the inner peripheral surface of the recessed portion 58 (the contacted portion 32) and the outer peripheral surface of the cylindrical portion 166 contacting each other. That is, the contacting portion 28 that can contact the contacted portion 32 is formed by the outer peripheral surface of the cylindrical portion 166 that constitutes the second fastening portion 134. The contacting portion 28 is provided on the metal retaining body 128 connected to the lower end of the shield shell 80, and is located closer to the electric wires 24 than the first fastening portion 111 (in short, the threaded portion 26) provided at the middle portion of the shield shell 80 in the vertical direction.

[0057] <First Tolerance Absorption Gap 190, 192> Furthermore, when the second bolt 184 is inserted into the second bolt insertion hole 186, the rear gap 146 and the front gap 168 are connected to each other in the front-rear direction, and a substantially annular or substantially cylindrical first tolerance absorbing gap 190 is formed between the inner peripheral surface of the second bolt insertion hole 186 and the outer peripheral surface of the second bolt 184. That is, in the first embodiment, the second bolt insertion hole 186 has the first tolerance absorbing gap 190. Furthermore, the direction in which the first tolerance absorbing gap 190 expands is the first direction, and in the first embodiment, the first direction is a direction orthogonal to the tightening direction of the second bolt 184 (left-right direction and up-down direction). Thus, when the second bolt 184 is fixed to the second bolt fixing portion 54, even if the second bolt insertion hole 186 and the second bolt fixing portion 54 are misaligned, the tolerance can be absorbed by displacing the second bolt 184 in the first tolerance absorbing gap 190. In particular, as described above, since the radial width β of the first tolerance absorbing gap 190 (the rear gap 146 and the front gap 168 ) in the vertical direction is larger than the radial width α in the horizontal direction, the tolerance in the vertical direction can be absorbed more effectively than in the horizontal direction.

[0058] In addition, as described above, when the metal retainer 128 is assembled to the shield case 80, the assembly parts 150 on the front and rear sides of the metal retainer 128 are combined with the assembled parts 122 on the front and rear sides of the shield case 80. Specifically, each assembly protrusion 126 is inserted into the assembly area 156 of each assembly part 150. Here, each assembly part 150 (including the assembly area 156) has a predetermined size in each direction of the up-down, left-right, and front-back directions.

[0059] That is, Figure 4 As shown, the vertical separation distance D1 between the upper inner surface of the storage portion 124 and the assembly protrusion 126 is larger than the vertical dimension D2 of the connection portion 154 of the assembly portion 150. Therefore, when each assembly portion 150 and each assembled portion 122 are combined and the assembly protrusion 126 is inserted into each assembly area 156, the opposing surfaces 191 of the assembly portion 150 and the assembled portion 122 (the opposing surfaces between the upper inner surface 124a of the storage portion 124 and the upper end surface 154a of the connection portion 154, or the opposing surfaces between the lower end surface 154b of the connection portion 154 and the upper end surface 126a of the assembly protrusion 126) are formed with a predetermined size A1 or A2 in the vertical direction (both refer to Figure 4 The gap is a first tolerance absorbing gap 192 between the opposing surfaces of each assembling portion 150 and each assembled portion 122.

[0060] 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 124 (for example, the left inner surface) and the assembly protrusion 126 is greater than the left-right direction dimension D4 of the upper protrusion 152 of the assembly portion 150. Thus, when each assembly portion 150 and each assembled portion 122 are combined and each assembly protrusion 126 is inserted into each assembly area 156, between the opposing surfaces 191 of the assembly portion 150 and the assembled portion 122 (between the opposing surfaces of the left-right direction outer inner surface 124b of the storage portion 124 and the left-right direction outer surface 152a of the upper protrusion 152, or between the left-right direction inner surface 152b of the upper protrusion 152 and the left-right direction outer surface 126b of the assembly protrusion 126), predetermined sizes B1 and B2 (both refer to Figure 5 This gap is also the first tolerance absorbing gap 192 between the opposing surfaces of each assembly part 150 and each assembled part 122.

[0061] Thus, the first tolerance absorbing gap 192 is provided between each assembly part 150 and each assembled part 122, and the first tolerance absorbing gap 192 expands in the first direction (vertical direction and horizontal direction) which is the same direction as the first tolerance absorbing gap 190 between the second bolt 184 and the second bolt insertion hole 186. Thus, in a state where each assembly part 150 and each assembled part 122 are combined and the metal retainer 128 is assembled to the shield shell 80, in particular, in a state before the cylindrical part 166 of the metal retainer 128 enters the recessed part 58 of the fixed wall part 36, the assembly protrusion 126 can be displaced in the vertical direction and horizontal direction within the assembly area 156. Furthermore, the metal retainer 128 can be displaced in the vertical direction and / or horizontal direction relative to the shield shell 80 by the amount by which the assembly protrusion 126 can be displaced in the assembly area 156, for example, by the amount of the displacement gap size A2 in the vertical direction or by the amount of the displacement gap size B2 in the horizontal direction. Therefore, the metal holding body 128 is assembled to the shield case 80 so as to be displaceable by the first tolerance absorbing gap 192 .

[0062] Furthermore, when the connector 12 and the mating connector 14 are mated, after the cylindrical portion 166 enters the recess 58, the displacement of the metal retaining body 128 relative to the shielding shell 80 is restricted by, for example, the abutment between the inner peripheral surface of the recess 58 (the abutted portion 32) and the outer peripheral surface of the cylindrical portion 166 (the abutment portion 28). Figure 4 As shown, when the cylindrical portion 166 enters the recessed portion 58, the metal retainer 128 may be displaced relative to the shield shell 80 by the size A3 or A4 of the gap between the abutted portion 32 and the abutting portion 28 in the vertical direction. Specifically, when the metal retainer 128 is displaced in the approaching direction (upward) relative to the shield shell 80, it is displaced by the smaller size of the gaps A1 and A3. Similarly, when the metal retainer 128 is displaced in the separating direction (downward) relative to the shield shell 80, it is displaced by the smaller size of the gaps A2 and A4.

[0063] Furthermore, in the left-right direction, for example, the displacement of the metal retaining body 128 relative to the shielding shell 80 may be restricted by the abutment between the inner peripheral surface of the recessed portion 58 (the abutted portion 32) and the outer peripheral surface of the cylindrical portion 166 (the abutting portion 28). Figure 6 As shown, when the cylindrical portion 166 enters the recessed portion 58, gaps B3 and B4 are formed between the abutted portion 32 and the abutting portion 28 in the left-right direction. When the metal retaining body 128 is displaced to the left relative to the shielding case 80, the gaps B1, B2, and B3 can be displaced by the smallest amount. Similarly, when the metal retaining body 128 is displaced to the right relative to the shielding case 80, the gaps B1, B2, and B4 can be displaced by the smallest amount.

[0064] Furthermore, for example, by making the gaps (B3 and B4) between the abutted portion 32 and the abutting portion 28 in the left-right direction sufficiently small (close to 0), the metal retaining body 128 can be substantially prevented from being displaced in the left-right direction relative to the shield shell 80 even in the state where the cylindrical portion 166 enters the recessed portion 58. Thus, by making the metal retaining body 128 prevented from being displaced in the left-right direction relative to the shield shell 80, the rotational displacement of each connector housing 22 (and the shield shell 80 and the metal retaining body 128 connected to each connector housing 22) accompanying the rotation of the first bolt 108 (threaded portion 26) can be more effectively suppressed.

[0065] <Second tolerance absorbing gap 194> Furthermore, if Figure 5 As shown in the enlarged view on the right side of the figure, the depth dimension (front-to-back dimension) D5 of the storage section 124 is larger than the front-to-back dimension D6 of the assembly section 150 (upper protrusion 152 and connection section 154). Therefore, when each assembly section 150 and each assembled section 122 are combined and each assembly protrusion 126 is inserted into each assembly area 156, a predetermined size C is formed in the front-to-back direction between the opposing surfaces 193 of the assembly section 150 and the assembled section 122 (the opposing surfaces between the bottom surface 124c of the storage section 124 and the inner surfaces 152c, 154c of the upper protrusion 152 and the connection section 154 in the front-to-back direction) (refer to Figure 5 This gap is a second tolerance absorbing gap 194 that expands in the bolt tightening direction (front-rear direction) of the second bolt 184 of the second tightening portion 134 .

[0066] As a result, in a state where the metal retainer 128 is assembled to the shield shell 80 by combining the assembling parts 150 and the assembled parts 122, in particular, in a state before the cylindrical part 166 of the metal retainer 128 enters the recessed part 58 of the fixed wall part 36, the metal retainer 128 can be displaced in the front-rear direction by the size C of the second tolerance absorbing gap 194 with respect to the shield shell 80. Therefore, the metal retainer 128 is assembled with respect to the shield shell 80 in a manner that allows it to be displaced by the second tolerance absorbing gap 194.

[0067] Furthermore, when the connector 12 and the mating connector 14 are mated, after the cylindrical portion 166 enters the recess 58, for example, the bottom surface 59 of the recess 58 and the protruding top surface (flat surface 170) of the cylindrical portion 166 also contact each other to restrict the displacement of the metal retaining body 128 in the front-to-back direction relative to the shielding shell 80. In other words, when the connector 12 and the mating connector 14 are mated, the metal retaining body 128 is displaced in the front-to-back direction relative to the shielding shell 80, thereby preventing the metal retaining body 128 from being displaced in the front-to-back direction relative to the shielding shell 80. Figure 4 , Figure 6As shown, the bottom surface 59 of the recessed portion 58 and the protruding top surface (flat surface 170) of the cylindrical portion 166 can be more reliably abutted. As a result, a shielding path can also be formed at the portion where the bottom surface 59 of the recessed portion 58 and the protruding top surface (flat surface 170) of the cylindrical portion 166 abut, and the shielding performance can be improved. In particular, in the first embodiment, since both the bottom surface 59 and the flat surface 170 are flatly extended, it is possible to ensure that these abutting areas are sufficiently large, and the shielding performance can be further improved.

[0068] In the first embodiment, the lower part of the metal holder 128 is covered by the metal shield bracket 196. The shield bracket 196 includes a stepped cylindrical wall portion 198, and a locking frame 200 protruding upward is provided on both sides of the left and right directions of the rear end portion of the cylindrical wall portion 198. In addition, a portion protruding upward is provided on both sides of the left and right directions of the front end portion of the cylindrical wall portion 198, and a screw hole 202 is formed in the protruding end portion protruding upward. Then, the cylindrical wall portion 198 of the shield bracket 196 is inserted outside the lower part of the metal holder 128, and each locking protrusion 158 is locked with each locking frame 200, and the fixing screw 204 is fixed to each screw fixing portion 172 through each screw hole 202, so that the shield bracket 196 is fixed to the metal holder 128. In addition, a shielding member such as a metal braided wire (not shown) that covers each electric wire 24 may be fixed to the cylindrical wall portion 198 of the shield bracket 196.

[0069] <Assembly of Connector Unit 10> Hereinafter, a specific example of a method of assembling the connector unit 10 by fitting the connector 12 and the mating connector 14 will be described. In addition, the assembling method of the connector unit 10 is not limited to the form described below.

[0070] First, the core wire 68 exposed by stripping the insulating coating 70 at the terminal of each electric wire 24 is fixed to the electric wire fixing portion 66 of each terminal body 62, and each clamp spring 64 is mounted on the upper end of each terminal body 62. Thus, each terminal 16 is fixed to the terminal of each electric wire 24. Then, each waterproof rubber 82 is externally inserted into each electric wire 24.

[0071] Next, each electric wire 24 assembled with each terminal 16 and each waterproof rubber 82 is inserted from the lower opening of each connector housing body 74. After each terminal 16 is inserted to a predetermined position, each terminal 16 is fixed to a predetermined position in each terminal receiving portion 72 in each connector housing 22 by assembling the connector housing cover 76 to the connector housing body 74. Then, each connector housing 22 assembled with each terminal 16 is inserted from the lower opening of the shield shell 80, and each connector housing 22 is connected and fixed to the shield shell 80 by, for example, concave-convex fitting. In addition, the front retainer 104 is assembled to the inner cylindrical portion 98 of the shield shell 80 from the front.

[0072] Then, if Fig.10 As shown in the figure, the first holding part 130 and the second holding part 132 are arranged opposite to each other in the front-to-back direction so as to sandwich the electric wires 24 extending downward from the shield shell 80 from both the front and back sides. Then, the assembly parts 150 of the first and second holding parts 130 and 132 are combined with the assembled parts 122 of the shield shell 80, and the first main body part 136 of the first holding part 130 and the second main body part 162 of the second holding part 132 are overlapped. And, by inserting the fixing bolts 178 through the front fixing parts 174 and fastening them to the rear fixing parts 160, the first holding part 130 and the second holding part 132 are fixed to each other by bolt fastening at the fixing body bolt fixing parts 180. Thus, the metal holding body 128 is assembled to the shield shell 80. Next, each wire 24 is inserted into the tube wall portion 198 of the shielding bracket 196, and the tube wall portion 198 covers the lower part of the metal retaining body 128, so that each locking protrusion 158 is locked to each locking frame 200, and each fixing screw 204 is fixed to each screw fixing portion 172 through each threaded hole 202.

[0073] Furthermore, the first bolt 108 is inserted from the rear into the first bolt insertion hole 110 of the shield shell 80. As a result, the front portion of the first bolt 108 protrudes forward from the shield shell 80, and the C-shaped ring 120 is assembled from the side (in a direction perpendicular to the front-rear direction) into the ring mounting groove 118 of the first bolt 108. As a result, the connector 12 is completed.

[0074] Furthermore, after the mating terminals 18 and the mating housing 34 are integrally formed, the mating housing 34 is inserted into the insertion holes 50 of the fixing wall 36 and fixed to the fixing wall 36 by the bolts 44. Thus, the mating connector 14 is completed.

[0075] like Figure 7As shown, the connector 12 and the mating connector 14 assembled in this way are arranged opposite to each other in the front-to-back direction. Furthermore, the connector 12 and the mating connector 14 are brought close to each other, and the threaded portion 26 of the first bolt 108 begins to be screwed into the mating threaded portion 30 of the first bolt fixing portion 52 of the fixing wall portion 36. Then, in a state where these threaded portions 26 and the mating threaded portions 30 are screwed into each other to a certain extent, the columnar connecting portion 38 of each mating terminal 18 begins to be pressed into the cylindrical connecting portion 60 of each terminal 16. In addition, by screwing the threaded portion 26 and the mating threaded portion 30 (i.e., the columnar connecting portion 38 is pressed into the cylindrical connecting portion 60) to a certain extent, the connector 12 and the mating connector 14 are further brought close to each other, as shown in FIG. Figure 8 As shown, the cylindrical portion 166 of the metal retaining body 128 begins to enter the recess 58 of the fixed wall portion 36. Figure 8 In the state shown, the contact area between the threaded portion 26 and the mating threaded portion 30 also increases, and the rotational force generated during the screwing and the axial force acting between the threaded portion 26 and the mating threaded portion 30 also gradually increase. Figure 8 After the state shown in FIG. 1 , the connector 12 may be rotated and displaced relative to the mating connector 14 due to the rotational force generated when the threaded portion 26 and the mating threaded portion 30 are screwed together. Even in this case, the cylindrical portion 166 of the metal retaining body 128 is arranged in the recess 58 of the fixed wall portion 36, so that Fig. 9 As shown, the contact portion 28 formed by the outer circumferential surface of the cylindrical portion 166 is displaced in the rotation direction indicated by the arrow a and abuts against the contacted portion 32 formed by the inner circumferential surface of the recessed portion 58, thereby suppressing or preventing the rotation displacement. And, by further screwing the threaded portion 26 and the mating threaded portion 30, the connector 12 and the mating connector 14 are in contact with each other, and the tightening of the first bolt 108 is completed. At this stage, the press-fitting of the columnar connecting portion 38 into the cylindrical connecting portion 60 is completed, and the connector 12 and the mating connector 14 are in an electrically conductive state.

[0076] In addition, at this stage, when the second bolt insertion hole 186 of the connector 12 and the second bolt fixing portion 54 of the fixing wall portion 36 are misaligned in the vertical direction or the horizontal direction, the metal retainer 128 is displaced relative to the shield shell 80 by using the first tolerance absorbing gap 192, and the second bolt insertion hole 186 and the second bolt fixing portion 54 are aligned. Furthermore, at this stage, when the bottom surface 59 of the recessed portion 58 and the flat surface 170 of the cylindrical portion 166 are separated in the front-back direction, the metal retainer 128 is displaced forward relative to the shield shell 80 by using the second tolerance absorbing gap 194, and the bottom surface 59 and the flat surface 170 are brought into contact. In addition, the operation of bringing the bottom surface 59 and the flat surface 170 into contact is not required, and the metal retainer 128 may be pushed forward by the head 185 of the second bolt 184 when the second bolt 184 is tightened to the second bolt fixing portion 54, and the bottom surface 59 and the flat surface 170 may naturally come into contact.

[0077] Then, the second bolt 184 is inserted through the second bolt insertion hole 186 of the metal retaining body 128 and fixed to the second bolt fixing portion 54 of the fixed wall portion 36. Thus, the second fastening portion 134 of the metal retaining body 128 is fastened by bolts to the fixed wall portion 36. As a result, the connection between the connector 12 and the mating connector 14 is completed, and the connector unit 10 is completed.

[0078] In the state where the connection between the connector 12 and the counterpart connector 14 is completed, Figure 4 As shown, the front end face (flat surface 170) of the cylindrical portion 166 protruding forward from the metal retainer 128 abuts against the bottom surface 59 of the recess 58, and the front end face (flat surface 116) of the contact portion 112 protruding forward from the shield shell 80 and the front end face of the outer cylindrical portion 100 of the upper portion of the shield shell 80 are in close contact with the rear surface of the rectangular plate portion 48 of the fixed wall portion 36 without a gap. That is, the shield shell 80 and the metal retainer 128, which are metal members on the connector 12 side, and the fixed wall portion 36, which is a metal member on the counterpart connector 14 side, abut at a plurality of mutually separated locations. As a result, a shielding path from the metal retainer 128 or the shield shell 80 to the fixed wall portion 36 can be stably ensured. In particular, at these abutting locations, the overlapping surfaces of the connector 12 and the counterpart connector 14 are both formed of flat surfaces, so that a sufficient abutting area can be ensured, and the shielding performance can be improved.

[0079] In the connector unit 10 having the above-described structure, in the bolt-assisted type connector 12, in order to obtain the pressing force (fitting force) for pressing each mating terminal 18 into each terminal 16, it is necessary to screw the threaded portion 26 and the mating threaded portion 30 together, and by rotating the threaded portion 26 (first bolt 108), each connector housing 22 (and the shield shell 80 and the metal retainer 128 connected to each connector housing 22) may also be rotated relative to the mating connector 14 together with the threaded portion 26. Here, in the connector 12 and the mating connector 14, by providing the abutting portion 28 and the abutted portion 32 that abut against each other as the threaded portion 26 rotates, further rotational displacement of each connector housing 22 can be prevented. As a result, the threaded portion 26 can be screwed stably, and it is also possible to prevent each connector housing 22 from being accidentally rotated and displaced to damage the connector 12 or the mating connector 14.

[0080] The contact portion 28 is formed by including the outer peripheral surface of the cylindrical portion 166 as a convex portion, and the contacted portion 32 is formed by including the inner peripheral surface of the concave portion 58. Thus, the contact portion 28 and the contacted portion 32 can contact each other over the entire circumference, and even when the threaded portion 26 is rotated in any circumferential direction, for example, the contact portion 28 and the contacted portion 32 can contact each other, and further rotational displacement of each connector housing 22 can be suppressed.

[0081] The metal retaining body 128 is connected to the connector housing 22 and holds the wires 24 drawn out from the wire draw-out port 20. The metal retaining body 128 is integrally provided with the abutting portion 28. Since the retaining body for holding the wires 24 is made of metal, the performance degradation of the member can be suppressed compared with the case where the retaining body is made of synthetic resin, and the effect of holding the wires 24 can be stably exerted. In addition, since the abutting portion 28 is integrally provided with the metal retaining body 128, the increase in the number of parts can be avoided, and the deformation of the abutting portion 28 when abutting against the abutted portion 32 can be avoided. As a result, the effect of preventing the displacement of the connector housing 22 accompanying the rotation of the threaded portion 26 can be stably exerted.

[0082] The second fastening portion 134 is provided in the metal retaining body 128, and the outer peripheral surface of the cylindrical portion 166 constituting the second fastening portion 134 constitutes the abutting portion 28. The connector 12 can be fixed to the counterpart connector 14 by the first fastening portion 111 and the second fastening portion 134 that are separated from each other. Thus, even when external forces such as vibration are input from each wire 24, the connector 12 itself can be prevented from vibrating relative to the counterpart connector 14, and the external forces input from each wire 24 can be suppressed from being transmitted to the terminals 16. In particular, by ingeniously utilizing the second fastening portion 134 to constitute the abutting portion 28, an increase in the number of components can be avoided.

[0083] The shield shell 80 covering and connected to each connector housing 22 is provided, and the metal retainer 128 is assembled with respect to the shield shell 80 so as to have the first tolerance absorbing gaps 190 and 192. Thus, when the second bolt 184 is fastened to the second bolt fixing portion 54, even when the second bolt insertion hole 186 and the second bolt fixing portion 54 are misaligned, the metal retainer 128 is displaced with respect to the shield shell 80 by utilizing the first tolerance absorbing gaps 190 and 192, so that the second bolt insertion hole 186 and the second bolt fixing portion 54 can be aligned with each other. As a result, the second bolt 184 can be stably fastened, and the connector 12 and the mating connector 14 can be more effectively mated. In addition, the recess 58 is preferably larger than the outer shape of the cylindrical portion 166 so that the cylindrical portion 166 can be displaced within the recess 58 according to the displacement of the metal retaining body 128 relative to the shielding shell 80. The recess 58 can be formed into an oblong or elliptical shape extending in the extension direction of the first tolerance absorption gap 190, 192, for example.

[0084] A second tolerance absorbing gap 194 is provided between the opposing surfaces of each assembled portion 122 of the shield shell 80 and each assembled portion 150 of the metal retainer 128, and the metal retainer 128 can be displaced in the front-rear direction relative to the shield shell 80 by the amount of the second tolerance absorbing gap 194. Thus, the flat surface 170 of the cylindrical portion 166 and the bottom surface 59 of the recessed portion 58 can be brought into contact with each other more reliably, and the shielding performance can be improved.

[0085] <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 purpose of the present invention are also included in the present invention. For example, the following variations of the embodiments are also included in the technical scope of the present invention.

[0086] (1) In the above embodiment, the threaded portion 26 is composed of an external thread provided on the first bolt 108, and the first bolt 108 is arranged on the first fastening portion 111, and the mating threaded portion 30 is composed of an internal thread provided on the inner peripheral surface of the first bolt fixing portion 52, but the specific structure of each threaded portion can adopt any structure and is not limited to this. For example, depending on the structure of the device provided with the mating connector, the threaded portion 26 may be composed of an internal thread provided on the inner peripheral surface of the first bolt insertion hole 110, and the mating threaded portion 30 may be composed of an external thread provided on the outer peripheral surface of the bolt, and the bolt is inserted into the first bolt insertion hole 110.

[0087] (2) In the above embodiment, the threaded portion 26 and the mating threaded portion 30 are screwed together to a certain extent ( Figure 8 , 9In the state shown in FIG. 1 , the protruding tip of the cylindrical portion 166 enters the recessed portion 58 on the fixed wall portion 36 side, and the outer peripheral surface of the cylindrical portion 166 (the contacting portion 28) and the inner peripheral surface of the recessed portion 58 (the contacted portion 32) contact each other, thereby preventing the connector housing 22 from rotating. However, the present invention is not limited to this method. That is, for example, when a convex portion constituting the contacting portion is provided separately from the second fastening portion through which the second bolt is inserted, or when the metal retaining body is not fixed to the fixed wall portion by the second bolt, for example, a solid substantially cylindrical or substantially truncated cone-shaped convex portion protruding toward the fixed wall portion side may be provided, and a recessed portion having an inner diameter dimension larger than the outer diameter dimension of the convex portion may be provided on the fixed wall portion side, and the convex portion may enter the recessed portion substantially at the same time as the threaded portion of the first bolt and the mating threaded portion on the fixed wall portion side begin to be screwed together. Thus, the effect of preventing the connector housings from rotating is achieved substantially simultaneously with the start of rotation of the threaded portion (first bolt), so that the effect of preventing the connector housings from being damaged due to the prevention of rotation can be more reliably achieved.

[0088] (3) In the above embodiment, the metal retaining body 128 is provided with a cylindrical portion 166 as a convex portion protruding toward the fixed wall portion 36, and the fixed wall portion 36 is provided with a recess 58. When the connector 12 and the counterpart connector 14 are mated, the cylindrical portion 166 enters the recess 58, but the present invention is not limited to this embodiment. That is, for example, a convex portion protruding toward the metal retaining body may be provided on the fixed wall portion, and a recess into which the convex portion enters may be provided on the metal retaining body. The rotational displacement of the connector may be prevented by the abutment between the abutment portion formed by the outer peripheral surface of the convex portion and the abutted portion formed by the inner peripheral surface of the recess. In addition, in the above embodiment, the abutment portion 28 is formed by the outer peripheral surface of the convex portion (cylindrical portion 166), and the abutted portion 32 is formed by the inner peripheral surface of the recess 58. However, the abutted portion may be formed by the outer peripheral surface of the convex portion, and the abutment portion may be formed by the inner peripheral surface of the recess.

[0089] (4) In the embodiment, the first tolerance absorbing gaps 190, 192 are provided at both sides of the second bolt insertion hole 186 and the opposing surfaces between the assembly portion 150 and the assembled portion 122, but the first tolerance absorbing gap may be provided at either side of the first bolt insertion hole and the opposing surfaces between the assembly portion and the assembled portion, or may not be provided at either side. In addition, in the embodiment, the first tolerance absorbing gap 192 provided between the opposing surfaces between the assembly portion 150 and the assembled portion 122 and the first tolerance absorbing gap 190 provided in the second bolt insertion hole 186 are both extended in the up-down direction and the left-right direction, but, for example, may be extended only in either direction 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 also be extended in different directions from each other. In addition, in the above embodiment, a second tolerance absorbing gap 194 extending in the front-to-back direction is provided between the opposing surfaces of the assembly portion 150 and the assembled portion 122, but the second tolerance absorbing gap is not necessary in the connector and the connector unit of the present invention. Furthermore, the recessed portion may be formed into a shape extending more in the up-down direction and the left-right direction than the cylindrical portion in coordination with the first tolerance absorbing gap extending in the up-down direction and the left-right direction, but, for example, the vibration of the connector can be further prevented by reducing the left-right direction gap between the cylindrical portion and the recessed portion as in the above embodiment, and the second bolt insertion hole and the second bolt fixing portion may be easily aligned in the left-right direction by forming the recessed portion into, for example, an oblong shape extending in the left-right direction.

[0090] (5) In the above-described embodiment, the second bolt 184 is inserted from the rear to the front relative to the second bolt insertion hole 186 and is fastened to the second bolt fixing portion 54 of the fixed wall portion 36, but the present invention is not limited to this method. For example, a stud bolt protruding toward the rear may be provided in the fixed wall portion, or a bolt protruding from the front to the rear through the fixed wall portion may be provided, and the bolt may be inserted into the second bolt insertion hole and fastened to a nut at the rear of the metal retaining body. In addition, the structure for fixing the metal retaining body to the fixed wall portion is not limited to a bolt-nut structure, and a previously known fixing structure based on a concave-convex fit or press-fit may be adopted. In addition, in the connector and the connector unit of the present invention, the metal retaining body does not have to be fixed to the fixed wall portion. That is, in the embodiment, the abutment portion 28 is formed by the outer peripheral surface of the cylindrical portion 166 for the second bolt 184 to be inserted, but the second bolt for fixing the metal retaining body to the fixed wall portion is not necessary. For example, a solid, roughly cylindrical or roughly frustoconical shaped protrusion protruding from the metal retaining body toward the fixed wall portion side may also be provided, and the outer peripheral surface of the protrusion constitutes an abutment portion that can abut against the abutted portion on the fixed wall portion side.

[0091] (6) In the embodiment described above, the retaining body assembled to the shielding shell 80 is made of metal (metal retaining body 128), but the retaining body does not have to be made of metal, and may be made of, for example, synthetic resin. In addition, in the connector and connector unit of the present invention, the retaining body is not required. In addition, in the embodiment described above, a shielding shell 80 is provided that covers each connector housing 22 and is connected to each connector housing 22, but it is not limited to this mode, and in the connector and connector unit of the present invention, the shielding shell is not required. That is, in the embodiment described above, the abutment portion 28 is provided on the metal retaining body 128, but, for example, an abutment portion protruding forward may be provided on the lower end portion of the shielding shell or the connector housing, and the rotational displacement of the connector is prevented by abutting against the abutted portion provided on the other connector.

[0092] (7) In the embodiment, the first retaining portion 130 and the second retaining portion 132 are fixed by fixing bolts 178, but are not limited to this method. In addition to bolt fixing, the first retaining portion and the second retaining portion can also be fixed by any method such as riveting, locking and interlocking. In addition, even in the case of using fixing bolts as in the embodiment, the fixing bolts can also be inserted in the opposite direction of the embodiment (from the back 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 one body. For example, a hinge portion can also be provided at the end of one side 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. After clamping the wire, the first retaining portion and the second retaining portion are fixed to each other by a fixing mechanism provided at the end of the other side of the circumference of the first retaining portion and the second retaining portion.

[0093] (8) The shape of the terminal 16 in the above embodiment is merely an example and is not limited. That is, in the above embodiment, the terminal 16 has a cylindrical connecting portion 60 for inserting the pin-shaped counterpart terminal 18, but is not limited to this form. The counterpart terminal can be, for example, a flat connector as described in International Publication No. 2021 / 145197, and in this case, the terminal only needs to have a substantially rectangular terminal insertion gap.

[0094] (9) In the above embodiment, a pair of connector housings 22, 22 are provided, and each of the terminals 16 is housed in each of the connector housings 22. However, the connector housings may be formed of a single member, or a plurality of terminals (e.g., a pair) may be housed 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

[0095] 10 Connector unit 12 Connectors 14 Mating connector 16 terminals 18 Other terminal 20 Wire outlet 22 Connector housing 24 Wire 26 Threaded part 28 Butt joint 30 Opposite thread part 32 Abutment portion 34 Other shell 36 Fixed wall 38 Column connection 40 Bolt insertion hole 42 Legs 44 Bolt 46 Waterproof rubber 48 Rectangular plate 50 Through hole 52 1st bolt fixing part 54 Second bolt fixing part 56 Internal thread 58 recess 59 Bottom 60 cylindrical connection 62 Terminal body 64 Clip Spring 66 Wire Fixing Department 68 core wire 70 Insulation coating 72 Terminal storage area 74 Connector housing body 76 Connector housing cover 78 Through hole 80 Shielding Shell 82 Waterproof rubber 84 rear wall 86 front wall 88 Left wall 90 Right wall 92 Upper wall 94 Divider 96 Through Window 98 Inner tube 100 Outer tube 102 Through hole 104 Front Retention Body 106 Waterproof rubber 108 1st bolt 110 1st bolt insertion hole 111 First fastening part 112 Contact Department 114 Recess 116 Flat surface 118 Ring mounting groove 120 C-ring 122 Assembled part 124 Storage Department 124a Inner surface above 124b Inner surface of the left and right outer sides 124c bottom 126 Assembling the convex part 126a Upper end surface 126b Left and right outer surface 128 Metal retainer 130 First holding unit 132 Second holding part 134 Second fastening part 136 1st Main Body 138 Grooves 140 Connection 142 Pressing protrusion 144 Rear insertion hole 146 Rear clearance 148 circular concave 150 Assembly Department 152 Upper protrusion 152a Left and right outer surface 152b Left and right inner surface 152c Front-to-back inner surface 154 Connection 154a Upper end surface 154b Lower end surface 154c Front-to-back inner surface 156 Assembly Area 158 locking protrusion 160 Rear fixing part 162 Second Main Body 164 Front insertion hole 166 Cylindrical part (convex part) 168 Front clearance 170 Flat surface 172 Screw fixing part 174 front fixing part 176 Storage recess 178 Fixing bolt 180 Bolt fixing part of the retaining body 182 Wire storage hole 184 2nd Bolt 185 Head 186 Second bolt insertion hole 188 External thread 190 1st tolerance absorption gap 191 Opposite Room 192 1st tolerance absorption gap 193 Opposite Face Room 194 2nd tolerance absorption gap 196 Shielding bracket 198 Cylinder wall 200 Locking frame 202 threaded hole 204 Fixing screw

Claims

1. A connector, comprising: a connector housing having a wire outlet; terminals housed in the connector housing; a wire connected to the terminals and led out of the connector housing through the wire outlet to the outside of the connector housing; a threaded portion that engages with a mating threaded portion provided on the mating connector side, and generates an engaging force toward the mating connector by an axial force acting between the threaded portion and the mating threaded portion; and a contact portion that can contact a contacted portion provided on the mating connector side, wherein the contact portion is provided closer to the wire side than the threaded portion, and as the threaded portion rotates, the contact portion contacts the contacted portion to prevent the connector housing from shifting in the rotational direction of the threaded portion.

2. The connector according to claim 1, wherein one of the contact portion and the contacted portion is constituted by an outer peripheral surface of a convex portion that protrudes toward the mating connector side in the axial direction of the threaded portion, and the other of the contact portion and the contacted portion is constituted by an inner peripheral surface of a concave portion provided on the mating connector side and housing the convex portion.

3. The connector according to claim 1 or claim 2, wherein the connector further includes a metal holder that is connected to the connector housing and holds the wire led out from the wire outlet, and the contact portion is provided integrally with the metal holder.

4. The connector according to claim 3, wherein the connector further includes a metal shielding case that covers and is connected to the connector housing, the shielding case has a first fastening portion, and a first bolt insertion hole through which a first bolt having the threaded portion is inserted is provided in the first fastening portion, the metal holder has a second fastening portion that is fastened to a fixed wall portion of the mating connector, the shielding case and the metal holder are assembled to each other by combining an assembling portion provided on one of the shielding case and the metal holder with an assembled portion provided on the other of the shielding case and the metal holder, a first tolerance absorption gap that extends in a first direction is provided between opposing surfaces of the assembling portion and the assembled portion, and a second bolt insertion hole through which the second fastening portion passes constitutes the first tolerance absorption gap that extends in the first direction, and the metal holder is assembled to the shielding case in such a manner that it can shift by an amount of the first tolerance absorption gap.

5. The connector according to claim 3, wherein the metal holder has a second fastening portion that is fastened to a fixed wall portion of the mating connector, the second fastening portion protrudes along the axial direction of the threaded portion toward the fixed wall portion, and the contact portion is constituted by an outer peripheral surface of the second fastening portion and can contact the contacted portion provided on the fixed wall portion.

6. The connector according to claim 4, wherein A second tolerance absorption gap that extends in the bolt tightening direction of the second fastening portion is provided between the facing surfaces of the assembly portion and the portion to be assembled, and the metal holder is assembled to the shielding case so as to be displaceable by an amount corresponding to the second tolerance absorption gap.

7. A connector unit is formed by fitting a connector with a mating connector. The connector is the connector according to claim 1 or claim 2. The mating connector has the mating threaded portion and the portion to be abutted, the threaded portion is screwed with the mating threaded portion, and the abutting portion can abut against the portion to be abutted.

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