Connector

Abstract

The invention discloses a connector, which can restrain the enlargement of the connector itself or the increase of the manufacturing cost, and can restrain or prevent the external force applied to an electric wire from being transmitted to the terminal side. A connector (10) is provided with: a terminal (12); an electric wire (16); a shield shell (20) having an electric wire outlet (18) from which the electric wire (16) is led out; and a rear holding body (24) fitted to the wire outlet (18), the wire outlet (18) of the shield case (20) having a plurality of engaged portions (54), the rear holding body (24) having a first engaging portion (116) and a second engaging portion (120), the first engaging portion (116) having a crushing rib (114) provided in a first direction and engaged with the engaged portions (54), the second engaging portion (120) having a crushing rib (118) provided in a second direction and engaged with the engaged portions (54), and the rear holding body (24) being engaged with the first engaging portion (116) and the second engaging portion (120) having a crushing rib (118) provided in a second direction and engaged with the engaged portions (54). In a fitted state in which the rear holder (24) is fitted into the electric wire lead-out port (18), the first engagement section (116) is pressed against the engaged section (54) by the crushing rib (114) in the first direction, and the second engagement section (120) is pressed against the engaged section (54) by the crushing rib (118) in the second direction.

Description

Technical Field

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

[0002] In the past, connectors were used to make electrical connections between on-board devices. This type of connector includes a connector housing, terminals housed in the connector housing, and wires connected to the terminals, and the wires are led out from a wire lead-out port of the connector housing to the outside. Since external forces such as vibrations when mounted on the vehicle are applied to the wires led out to the outside, when the external forces applied to the wires are transmitted to the terminal side, stress is applied to the contacts between the terminal and the other terminal, which may cause problems such as contact wear. Therefore, in the connector, it is necessary to suppress the external forces applied to the wires from being transmitted to the terminal side. For this reason, the connector disclosed in Patent Document 1 has a rear retaining body made of resin, which is assembled to the connector housing in a state of retaining the wires. Prior art literature Patent Literature

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

[0004] However, in Patent Document 1, the rear retaining body is assembled by allowing the locking claw-shaped locking portion provided at the top end of the elastic protruding piece provided on the connector housing to elastically deform while passing over the locked portion provided on the rear retaining body and elastically recovering to be engaged with the locked portion. As a result, a small gap is inevitably generated between the locking portion and the locked portion, and the external force transmitted to the wire may be transmitted to the terminal side due to the shaking caused by the gap.

[0005] Furthermore, with the recent increase in the current of vehicle-mounted equipment, the diameter of the wires has tended to be larger. In order to ensure sufficient holding force to prevent the shaking of such large wires, the resin rear retainer has to be enlarged, which inevitably leads to the problem of enlarged connectors. In this regard, it is also considered to make the rear retainer metal to improve the holding force, but the complex shape of the rear retainer needs to be formed by aluminum die casting, etc., which will increase the manufacturing cost and is not favored.

[0006] The present invention discloses a connector that can suppress an increase in size of the connector itself or an increase in manufacturing cost, and can suppress or prevent an external force applied to an electric wire from being transmitted to a terminal side. Solutions to Solve Problems

[0007] The connector of the present invention comprises: a terminal housed in a connector housing; an electric wire connected to the terminal and led out to the outside of the connector housing; a metal shielding shell fixed to and covering the connector housing, having a cylindrical electric wire lead-out port for leading out the electric wire; and a synthetic resin rear retaining body having an electric wire insertion barrel portion, engaged with the electric wire lead-out port, the electric wire being inserted through and held in the electric wire insertion barrel portion in a crimped state, the electric wire lead-out port of the shielding shell having a plurality of engaged portions arranged separately from each other in the circumferential direction of the electric wire lead-out port, and the rear retaining body having a first engaging portion and a second engaging portion, wherein the first engaging portion has crushing ribs arranged on both sides of a first direction orthogonal to the extension direction of the wire, and engages with the engaged portion, and the second engaging portion has crushing ribs arranged on both sides of a second direction orthogonal to both the extension direction of the wire and the first direction, and engages with the engaged portion, and when the rear retaining body is engaged with the wire lead-out port, the first engaging portion is pressed against the engaged portion through the crushing ribs on both sides of the first direction, and the second engaging portion is pressed against the engaged portion through the crushing ribs on both sides of the second direction. Effects of the Invention

[0008] According to the connector of the present invention, it is possible to suppress an increase in size of the connector itself or an increase in manufacturing cost, and to suppress or prevent an external force applied to an electric wire from being transmitted to a terminal side. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 This is a perspective view showing the connector according to the first embodiment. Figure 2 Yes Figure 1 The main part of the connector is shown in an enlarged top view. Figure 3 Yes Figure 2 The cross-sectional view is an enlarged view of the section III-III. Figure 4 Yes Figure 2 The IV-IV section is shown in an enlarged cross-sectional view. Figure 5 yes Figure 1 The illustrated connector is a partially exploded perspective view showing a rear retaining body in an exploded state. Figure 6 It is shown Figure 1 The cross-sectional view of the connector after the retaining body is removed is similar to Figure 3 The corresponding figure. Figure 7 It will constitute Figure 1 The upper retaining body of the rear retaining body of the connector is shown in a perspective view from a flat side. Figure 8 Yes Figure 7 The upper holding body shown is a perspective view from the bottom side. Fig. 9 yes Figure 7 A top view of the upper retaining body is shown. Fig.10 yes Figure 7 A rear view of the upper retaining body is shown. DETAILED DESCRIPTION

[0010] <Description of Embodiments of the Invention> First, embodiments of the present invention will be described by way of examples. (1) The connector of the present invention comprises: a terminal housed in a connector housing; an electric wire connected to the terminal and led out to the outside of the connector housing; a metal shielding shell fixed to and covering the connector housing, having a cylindrical electric wire lead-out port for leading out the electric wire; and a synthetic resin rear retaining body having an electric wire insertion barrel portion engaged with the electric wire lead-out port, the electric wire being inserted through and held in the electric wire insertion barrel portion in a crimped state, the electric wire lead-out port of the shielding shell having a plurality of engaged portions disposed separately from each other in a circumferential direction of the electric wire lead-out port, the rear retaining body having a first engaging portion. The first engaging portion comprises crushing ribs arranged on both sides of a first direction perpendicular to the extension direction of the electric wire, and is engaged with the engaged portion; the second engaging portion comprises crushing ribs arranged on both sides of a second direction perpendicular to the extension direction of the electric wire and the first direction, and is engaged with the engaged portion; when the rear retaining body is engaged with the electric wire lead-out port, the first engaging portion is pressed against the engaged portion through the crushing ribs on both sides of the first direction, and the second engaging portion is pressed against the engaged portion through the crushing ribs on both sides of the second direction.

[0011] According to the connector of the present invention, the electric wire drawn out from the connector housing is inserted and held in the electric wire insertion cylinder of the rear retaining body made of synthetic resin in a crimped state, and the rear retaining body is engaged with the electric wire lead-out port of the metal shielding shell fixed to the connector housing. In addition, the rear retaining body includes a first engaging portion and a second engaging portion, and in the engaged state in which the rear retaining body is engaged with the electric wire lead-out port, the first engaging portion is crimped to the engaged portion of the electric wire lead-out port through a crushing rib on both sides (e.g., upper and lower sides) of a first direction orthogonal to the extension direction of the electric wire, and the second engaging portion is crimped to the engaged portion of the electric wire lead-out port through a crushing rib on both sides (e.g., left and right sides) of a second direction orthogonal to both the extension direction of the electric wire and the first direction. Therefore, even when the rear retaining body is engaged with the wire lead-out port of the shielding shell with a little shaking, the first engaging portion and the second engaging portion both press the crushing rib while being pressed against the engaged portion in any of the first direction (e.g., up-down direction) and the second direction (e.g., left-right direction) which are two directions orthogonal to the extending direction (axial direction) of the wire. As a result, the crushing rib can absorb the shaking and suppress the displacement of the rear retaining body engaged with the wire lead-out port relative to the wire lead-out port. Thus, the connector housing or the rear retaining body will not be enlarged or the rear retaining body will not be made of metal. While the rear retaining body is made of synthetic resin, the displacement of the rear retaining body relative to the shielding shell caused by vibration during vehicle installation can be suppressed by the crushing rib. Therefore, the enlargement of the connector itself or the increase in manufacturing cost can be suppressed, and the external force applied to the wire can be suppressed or prevented from being transmitted to the terminal side. In addition, the external force isolation performance of the rear retaining body that suppresses the transmission of the external force from the wire can be improved. In particular, since the wire lead-out port in which the rear retaining body is engaged is constructed using a metal shielding shell, compared to a case where the wire lead-out port is provided on a connector housing made of synthetic resin, it can advantageously suppress adverse conditions such as the generation of gaps caused by creep phenomena in a high temperature environment, and can advantageously maintain the crimped state in which the engaging portion is crimped to the engaged portion through the compression ribs.

[0012] The fitting structure of the rear retaining body with respect to the wire lead-out port of the shielding case may be any structure. For example, an elastic locking piece may be provided on the rear retaining body and locked and fitted with a locking protrusion provided on the shielding case.

[0013] (2) Preferably, the plurality of engaged portions of the wire lead-out port include a plurality of first engaged portions arranged on both sides in the second direction and a plurality of second engaged portions arranged on both sides in the first direction, and the rear retaining body includes a plurality of first engaging portions arranged on both sides in the second direction and a plurality of second engaging portions arranged on both sides in the first direction, and in a state where the rear retaining body is engaged with the wire lead-out port, the first engaging portions are pressed against the first engaged portions on both sides in the second direction by the crushing ribs on both sides in the first direction, and the second engaging portions are pressed against the second engaged portions on both sides in the first direction by the crushing ribs on both sides in the second direction. This is because the engaging portions can be pressed against the engaged portions by the crushing ribs on both sides in the first direction and the second direction, and displacement of the rear retaining body relative to the shielding shell can be further stably suppressed, and transmission of external force applied to the wires to the terminal side can be suppressed or prevented.

[0014] (3) Preferably, the diameter of the inner circumferential surface of the wire insertion barrel portion of the rear retaining body is larger than the diameter of the outer circumferential surface of the wire inserted inside the wire insertion barrel portion, and a plurality of wire pressing protrusions are protrudingly provided on the inner circumferential surface of the wire insertion barrel portion so as to be separated from each other, and the wire pressing protrusions protrude radially inwardly of the outer circumferential surface of the wire, and the insulating coating constituting the outer circumferential surface of the wire is pressed radially inwardly by each of the wire pressing protrusions, so that the wire is inserted through and retained in the wire insertion barrel portion in a crimped state.

[0015] The diameter of the inner circumference of the wire insertion barrel is larger than the diameter of the outer circumference of the wire, and a gap is formed between them. Further, a plurality of wire pressing protrusions are arranged separately from each other. Therefore, the insulating coating layer that is elastically deformed radially outward by being pressed by the wire pressing protrusion can be absorbed into the gap expanded between the wire pressing protrusions. Therefore, it is advantageously possible to fix the position of the wire to the wire insertion barrel by pressing the insulating coating layer by the wire pressing protrusion, and it is possible to reduce the assembly force when assembling the wire insertion barrel to the wire, which can improve the assembly workability. Preferably, it is desired that the plurality of wire pressing protrusions are dispersed separately from each other in either the axial direction and the circumferential direction of the wire insertion barrel. Thus, the wire can be fixed in a wider range by pressing the wire pressing protrusion, and the external force isolation performance of the rear retaining body to suppress the transmission of external force from the wire can be further improved.

[0016] (4) Preferably, the rear retaining body has an elastic locking piece that protrudes in a cantilever beam shape toward the wire lead-out port of the shielding shell, the elastic locking piece has a fitting hole at the protruding end, and the shielding shell has a locking protrusion that protrudes toward the outer peripheral surface of the wire lead-out port, and the rear retaining body and the wire lead-out port of the shielding shell are fitted by fitting the locking protrusion of the shielding shell into the fitting hole of the elastic locking piece of the rear retaining body. Since it is sufficient to provide the elastic locking piece on the rear retaining body made of synthetic resin and form the locking protrusion on the shielding shell, the elastic locking piece can be easily formed, and the structure of the shielding shell can be simplified, thereby suppressing the manufacturing cost.

[0017] (5) In the above (4), preferably, the wire lead-out port of the shielding shell has a concave locking piece receiving portion opening on the outer peripheral surface of the wire lead-out port, the locking protrusion is protrudingly provided on the bottom surface of the locking piece receiving portion, and when the rear retaining body is in the engaged state relative to the shielding shell, the elastic locking piece of the rear retaining body is received in the locking piece receiving portion.

[0018] Because the elastic locking piece of the rear retaining body is received in the locking piece receiving portion of the shielding shell when the rear retaining body is in the fitted state relative to the shielding shell, the elastic locking piece can be prevented from protruding toward the outer peripheral side of the wire lead-out port. As a result, the interference of the elastic locking piece with other components can be prevented, thereby advantageously preventing the rear retaining body from accidentally detaching from the wire lead-out port. Furthermore, because the locking protrusion of the wire lead-out port is also provided on the bottom surface of the locking piece receiving portion, the locking protrusion can also be prevented from protruding toward the outer peripheral side of the wire lead-out port, thereby preventing interference with other components. In addition, it is more preferred that the depth dimension of the locking piece receiving portion is adjusted so that the elastic locking piece does not protrude toward the outer peripheral side from the outer peripheral surface of the wire lead-out port.

[0019] (6) In the above (5), it is preferred that a plurality of notch-shaped engaged portions are provided at the cylindrical end portion of the wire lead-out outlet of the shielding shell located on the lead-out direction side of the wire, the notch-shaped engaged portions penetrating in the plate thickness direction and opening on the end face on the lead-out direction side, at least one of the engaged portions is provided with an opening on the bottom face of the locking piece accommodating portion, and a convex second engaging portion is provided on the base end side of the elastic locking piece of the rear retaining body, the second engaging portion protruding from the elastic locking piece toward the wire side and pressed into the at least one engaged portion.

[0020] Since the engaged portion provided at the wire lead-out port of the shielding shell is formed as a notch-shaped portion penetrating in the plate thickness direction of the cylindrical end portion and opening at the end surface on the wire lead-out direction side, the engaged portion can be provided without increasing the size of the shielding shell. Furthermore, one of the engaged portions is provided with an opening at the bottom surface of the locking piece storage portion, and the second engaging portion pressed into it is convexly protruding from the elastic locking piece toward the wire side, so that the free space on the back side of the elastic locking piece is cleverly utilized and the space efficiency is good. Thus, the engaged portion and the second engaging portion embedded in the engaged portion can be provided in a space-saving manner without increasing the size of the connector.

[0021] (7) In the above (6), preferably, the rear retaining body includes a mounting tube portion embedded into the inner peripheral side of the cylindrical end portion of the wire lead-out port, and a convex first engaging portion protruding from the outer peripheral surface of the mounting tube portion, and when the rear retaining body is in the engaged state with respect to the shielding shell, the first engaging portion does not protrude to the outer peripheral side of the wire lead-out port but is housed in the engaged portion.

[0022] The first engaging portion is made to protrude from the outer peripheral surface of the mounting cylindrical portion of the rear retaining body embedded in the inner peripheral side of the cylindrical end portion of the wire lead-out port, and the first engaging portion is accommodated in the engaged portion provided through the plate thickness direction of the cylindrical end portion, so that the first engaging portion can be pressed into the engaged portion. Therefore, the engaged portion and the first engaging portion pressed into the engaged portion can be arranged using the cylindrical end portion of the wire lead-out port, and the engaged portion and the first engaging portion pressed into the engaged portion can be arranged in a space-saving manner without increasing the size of the connector.

[0023] <Details of Embodiments of the Invention> Specific examples of the connector of the present invention are described below with reference to the drawings. The present invention is not limited to these examples, but is shown by the claims, and is intended to include all modifications within the meaning and scope equivalent to the claims.

[0024] <Implementation Method 1> Below, use Figures 1 to 10 The connector 10 according to the first embodiment of the present invention is described. The connector 10 includes a terminal 12. When the connector 10 is connected to a mating connector (not shown), the terminal 12 in the connector 10 and the mating terminal in the mating connector become electrically conductive. The connector 10 can be arranged in any orientation. In the following, the top is assumed to be Figure 3 The top of the middle and the bottom of the middle Figure 3 Below, in front Figure 2 The left side of the middle, the back side is Figure 2 The right side of the Figure 2 The top of the middle and the right Figure 2In addition, regarding 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.

[0025] <Connector 10> Also like Figures 1 to 4 As shown, the connector 10 includes: a terminal 12, which is accommodated in a connector housing 14; and an electric wire 16, which is connected to the terminal 12 and led out to the outside of the connector housing 14. In addition, the connector 10 includes a metal shield shell 20 and a synthetic resin rear retaining body 24. The metal shield shell 20 is fixed to the connector housing 14 and covers the connector housing 14, and has a cylindrical wire lead-out port 18 (see FIG. 1 ) for leading out the electric wire 16. Figure 1 , 5 ), a rear retaining body 24 made of synthetic resin has a wire insertion barrel 22, which is engaged with the wire lead-out port 18, and the wire 16 is inserted and retained in the wire insertion barrel 22 in a crimped state. In the first embodiment, the connector 10 has a pair of terminals 12, 12, and a connector housing 14 for accommodating each terminal 12 and a pair of wires 16 connected to each terminal 12 are also provided.

[0026] <Terminal 12> In Embodiment 1, the unillustrated opposite-side terminal connected to each terminal 12 is a pin terminal. As long as it has a cylindrical connecting portion 26 into which the pin-shaped opposite-side terminal is pressed, its specific structure is not limited. For example, a structure such as the female terminal (10) described in Japanese Patent Gazette No. 2021-28899 can be adopted. In more detail, each terminal 12 of Embodiment 1 is constructed to include: a terminal body 28 having a cylindrical connecting portion 26; and a clip spring 30 as an elastic member, which is assembled at the top end (rear end) of the terminal body 28. In addition, a wire fixing portion 32 is provided at the base end (front end) of each terminal body 28, and each wire 16 is fixed to the wire fixing portion 32.

[0027] Each electric wire 16 is a covered electric wire, and is composed of a core wire 34 and an insulating coating 36 made of synthetic resin that covers the core wire 34 over substantially the entire length. The insulating coating 36 is stripped off at the terminal end of each electric wire 16 to expose the core wire 34, and the exposed core wire 34 is fixed to the wire fixing portion 32 of each terminal body 28, thereby connecting each terminal body 28 and each electric wire 16. In addition, the fixing method of the wire fixing portion 32 and the core wire 34 is not limited, and it can be bonding, welding, etc., or crimping using a crimping piece, etc.

[0028] <Connector Housing 14> like Figure 2As shown, the connector housing 14 has a substantially rectangular cylindrical terminal receiving portion 38, and the terminal receiving portion 38 receives the rear end portion of each electric wire 16 and each terminal 12 fixed to the terminal of each electric wire 16. As described above, in Embodiment 1, a pair of connector housings 14, 14 are provided, and each connector housing 14 has a terminal receiving portion 38. Each connector housing 14 (each terminal receiving portion 38) is separated from each other in the left-right direction and extends in the front-back direction. In addition, each electric wire 16 received in each terminal receiving portion 38 is led out to the external space through the front opening portion 39 of each connector housing 14 (each terminal receiving portion 38).

[0029] In addition, the method of fixing each of these connector housings 14 and the shield shell 20 fixed in a state of covering each connector housing 14 is not limited, but in the first embodiment, as described later, each connector housing 14 is inserted into the inside from the front opening (wire lead-out port 18) of the shield shell 20. And, for example, each connector housing 14 is fixed to the shield shell 20 by fitting the concave and convex parts provided on the outer surface of each connector housing 14 and the inner surface of the shield shell 20.

[0030] <Shielding case 20> The shield shell 20 is generally in a substantially cylindrical shape that is open forward, and covers substantially the entirety of the pair of connector housings 14, 14. That is, the shield shell 20 includes an upper wall portion 40 that covers the upper portion of each connector housing 14, a lower wall portion 42 that covers the lower portion of each connector housing 14, a left wall portion 44 that covers the left connector housing 14 from the left, a right wall portion 46 that covers the right connector housing 14 from the right, and a rear wall portion 48 that covers the rear of each connector housing 14. In addition, inside the shield shell 20, a partition portion 50 is provided between the left and right directions of each connector housing 14 (each terminal housing portion 38), and the partition portion 50 partitions the internal space of the shield shell 20 in the left and right directions.

[0031] The partition 50 is formed to extend forward from the rear wall 48 of the shield shell 20, but not to reach the front opening of the shield shell 20 in the front-rear direction. Figure 3 , Figure 6 As shown, the front opening of the shield shell 20 is in a substantially rectangular cylindrical shape surrounded by the upper wall 40, the lower wall 42, the left wall 44, and the right wall 46. Furthermore, each electric wire 16 led forward through the front opening 39 of each connector housing 14 is led out to the outside of the shield shell 20 through the front opening of the substantially rectangular cylindrical shield shell 20, and the front opening of the shield shell 20 constitutes a cylindrical electric wire lead-out port 18.

[0032] In particular, a cylindrical end portion 52 is formed at the end portion of the wire lead-out port 18 of the shield shell 20 on the front side, which is the lead-out direction side of each wire 16. That is, as described above, the cylindrical end portion 52 is a substantially cylindrical portion surrounded by the upper wall portion 40, the lower wall portion 42, the left wall portion 44, and the right wall portion 46, and a substantially flatly expanded portion is provided at the middle portion in the left-right direction of the upper wall portion 40 and the lower wall portion 42 and the middle portion in the top-bottom direction of the left wall portion 44 and the right wall portion 46. In addition, in the cylindrical end portion 52, the upper wall portion 40 and the lower wall portion 42 are connected to the left wall portion 44 and the right wall portion 46 at both end portions in the left-right direction, and these connected portions are formed by portions bent into a rounded shape.

[0033] <Engaged portion 54> Here, a plurality of engaged portions 54 separated from each other in the circumferential direction of the wire lead-out outlet 18 are provided in the wire lead-out outlet 18 of the shielding shell 20. Specifically, in the cylindrical end portion 52 of the wire lead-out outlet 18, a plurality of notch-shaped engaged portions 54 are provided in a manner that penetrates in the plate thickness direction and opens on the end face on the lead-out direction side (front side) of each wire 16. More specifically, the plurality of engaged portions 54 are provided in the cylindrical end portion 52 on both sides of the first direction (the up-down direction in Embodiment 1) and the second direction (the left-right direction in Embodiment 1), the first direction being orthogonal to the extension direction (front-back direction) of each wire 16, and the second direction being orthogonal to both the extension direction of each wire 16 and the first direction. That is, the engaged portions 54 in the cylindrical end portion 52 include a plurality of first engaged portions 56 arranged on both sides of the second direction (left-right direction) and a plurality of second engaged portions 58 arranged on both sides of the first direction (up-down direction). In short, as also Figure 5 , Figure 6 As shown, the first engaged portion 56 is provided on the left wall portion 44 and the right wall portion 46 constituting the cylindrical end portion 52 , respectively, and the second engaged portion 58 is provided on the upper wall portion 40 and the lower wall portion 42 constituting the cylindrical end portion 52 , respectively.

[0034] Each first engaged portion 56 is provided in a substantially flatly extended vertical middle portion of the left wall portion 44 and the right wall portion 46 constituting the cylindrical end portion 52, opens at the front end surface of the cylindrical end portion 52, and penetrates in the horizontal direction which is the plate thickness direction. Each of these first engaged portions 56 has a predetermined vertical dimension A (see Figure 6 ).

[0035] Each second engaged portion 58 is provided in the middle portion of the upper wall portion 40 and the lower wall portion 42 constituting the cylindrical end portion 52, which extends substantially flatly in the left-right direction. In the first embodiment, a pair of second engaged portions 58, 58 are provided in each of the upper wall portion 40 and the lower wall portion 42, which are separated from each other in the left-right direction. Each second engaged portion 58 opens at the front end surface of the cylindrical end portion 52, penetrates in the up-down direction which becomes the plate thickness direction, and has a predetermined left-right direction dimension B (refer to Figure 6 ).

[0036] <Locking piece storage portion 60> In particular, in the first embodiment, a concave locking piece receiving portion 60 is provided on the outer peripheral surface of the wire lead-out port 18 of the shield shell 20 so as to be open to the outer peripheral side and the front, and the locking piece receiving portion 60 receives the elastic locking piece 96 of the rear retaining body 24 described later. Specifically, a pair of locking piece receiving portions 60, 60 are provided in the left-right middle portions of the upper wall portion 40 and the lower wall portion 42 constituting the wire lead-out port 18 (cylindrical end portion 52) so as to be separated from each other in the left-right direction and open to the outer side and the front in the up-down direction which is the outer peripheral side. Furthermore, the second engaged portions 58 described above penetrate the front end surface of the bottom of each locking piece receiving portion 60 in the up-down direction which is the plate thickness direction, and are provided so as to be open on the bottom surface of each locking piece receiving portion 60. In addition, a locking protrusion 62 protruding outward in the vertical direction is provided on the outer peripheral surface of the wire outlet 18. In the first embodiment, a locking protrusion 62 protruding outward in the vertical direction is provided on the bottom surface of each locking piece storage portion 60 behind each second engaged portion 58.

[0037] In addition, a through hole (not shown) is formed in the rear portion of the upper wall portion 40 of the shield shell 20, which penetrates the upper wall portion 40 in the thickness direction (up and down direction), and the cylindrical connection portion 26 of each terminal 12 arranged inside the shield shell 20 is exposed to the external space through the through hole. In addition, a cylindrical portion 64 protruding upward is provided at the peripheral portion of the through hole provided in the upper wall portion 40. The cylindrical portion 64 is a substantially oblong shape whose dimension in the left-right direction is larger than that in the front-back direction, and a front retainer 66 is assembled on the inner peripheral side of the cylindrical portion 64. A substantially circular through hole 68 is formed in the front retainer 66 in the up and down direction at a position corresponding to the cylindrical connection portion 26 of each terminal 12, and when the connector 10 is connected to the other-side connector, the pin-shaped other-side terminal is inserted into the cylindrical connection portion 26 of each terminal 12 through the through hole 68. In addition, the cylindrical portion 64 and the front retainer 66 can be fixed to each other by, for example, a locking mechanism (not shown).

[0038] In addition, a bolt insertion hole 72 is formed in the vertical direction at the center portion in the left-right direction of the shield case 20, in front of the cylindrical portion 64, and a fastening bolt 70 is inserted into the bolt insertion hole 72. The fastening bolt 70 is fastened to, for example, a box body of a counterpart device provided with a counterpart terminal (not shown), and the counterpart terminal can be pressed into the cylindrical connection portion 26 of each terminal 12 by the fastening force of the fastening bolt 70. In addition, the fastening bolt 70 inserted into the bolt insertion hole 72 can be prevented from falling out of the bolt insertion hole 72 by a fixing member 73 such as a C-shaped seal ring.

[0039] Furthermore, inside the shield shell 20, an annular waterproof rubber 74 is externally inserted and mounted on each of the electric wires 16 drawn forward from the front opening 39 of each connector housing 14. Each waterproof rubber 74 is inserted into the shield shell 20 from the front opening (electric wire lead-out port 18) of the shield shell 20 and is located in front of each connector housing 14. Furthermore, a rear retaining body 24 is assembled to the shield shell 20 to prevent each waterproof rubber 74 from falling off.

[0040] <Rear holding body 24> In the first embodiment, the rear retaining body 24 is composed of an upper retaining body 76 and a lower retaining body 78 that can be assembled to each other in the vertical direction. In particular, in the first embodiment, the upper retaining body 76 and the lower retaining body 78 have the same shape as each other, and the rear retaining body 24 is formed by assembling a pair of upper retaining bodies 76, 76 (lower retaining bodies 78, 78) in a vertically inverted state. In addition, since the upper retaining body 76 and the lower retaining body 78 have the same shape as each other, in the following description, Figures 7 to 10 The upper holding body 76 will be described below, and description of the lower holding body 78 will be omitted.

[0041] As described above, since the rear retaining body 24 includes the wire insertion barrel 22 for retaining the inserted wire 16 in a crimped state, the wire insertion barrel 22 is also a split structure in the vertical direction. That is, the upper retaining body 76 includes the split barrel 80, and the split barrel 80 is assembled with the other upper retaining body 76 that is reversed upside down to form the wire insertion barrel 22. In the first embodiment, since the pair of wires 16, 16 are separated from each other in the left-right direction, the upper retaining body 76 is provided with a pair of split barrels 80, 80 separated from each other in the left-right direction.

[0042] In particular, in the first embodiment, the front portions of the pair of split tubes 80, 80 provided on the left and right sides have different circumferential lengths, the first split tube 80a provided on the left side is formed with a circumferential length shorter than 1 / 2 of the circumference (for example, about 1 / 3 of the circumference), and the second split tube 80b provided on the right side is formed with a circumferential length of approximately 1 / 2 of the circumference. Figure 1As shown, when each first divided cylinder portion 80a and each second divided cylinder portion 80b are overlapped in the up-down direction to form each wire insertion cylinder portion 22, a gap 82 extending in the front-rear direction is formed between the circumference of the first divided cylinder portion 80a and the second divided cylinder portion 80b.

[0043] The first split tube portion 80a and the second split tube portion 80b are connected at their respective rear portions by a connecting portion 84. In addition, at the connecting position of the connecting portion 84, the circumferential lengths of the first split tube portion 80a and the second split tube portion 80b are approximately 1 / 2 of a circle. Figure 4 As shown, when each first split barrel portion 80a and each second split barrel portion 80b are overlapped in the vertical direction to form each wire insertion barrel portion 22, the circumferential end surfaces of the rear portions of each first split barrel portion 80a and each second split barrel portion 80b are butted against each other to form a substantially cylindrical wire insertion barrel portion 22. Figure 4 As shown, the inner circumferential surface diameter dimension φα (refer to Figure 4 ) is larger than the diameter dimension φβ of the outer peripheral surface of each wire 16 inserted into the interior of each wire insertion barrel 22 (refer to Figure 4 ).

[0044] <Wire pressing projection 86> And, as Figure 4 , Figure 8 As shown, a plurality of wire pressing protrusions 86 protruding radially inward are formed on the inner circumferential surfaces of the first split barrel 80a and the second split barrel 80b. In each of the first split barrel 80a and the second split barrel 80b, a plurality of wire pressing protrusions 86 are arranged circumferentially separately from each other on the same circumference. In addition, a plurality of wire pressing protrusions 86 arranged circumferentially separately from each other on the same circumference are arranged at two locations in the front-to-back direction. The plurality of wire pressing protrusions 86 arranged on the first split barrel 80a and the plurality of wire pressing protrusions 86 arranged on the second split barrel 80b are located at approximately the same position in the front-to-back direction. Therefore, when each first split barrel 80a and each second split barrel 80b are overlapped in the up-down direction to form each wire insertion barrel 22, in each wire insertion barrel 22 of a substantially cylindrical shape, a plurality of wire pressing protrusions 86 are arranged circumferentially separately from each other over approximately the entire circumference on the same circumference.

[0045] like Figure 4As shown, the plurality of wire pressing protrusions 86 protrude radially inward from the outer peripheral surface of each wire 16 when each wire 16 is inserted into each wire insertion barrel 22. As a result, the insulating coating 36 constituting the outer peripheral surface of each wire 16 is pressed radially inward by each wire pressing protrusion 86. Thus, each wire 16 is inserted into and held in each wire insertion barrel 22 in a crimped state. In addition, in Embodiment 1, as described later, after the rear retaining body 24 is mounted on each wire 16, the rear retaining body 24 is moved rearward and assembled to the shielding shell 20, so that the insulating coating 36 of each wire 16 can be pressed by each wire pressing protrusion 86 while the rear retaining body 24 is displaced in the front-rear direction relative to each wire 16.

[0046] In addition, a locking claw portion 88 protruding downward is provided on the outer peripheral surface of the front part of the first split barrel portion 80a, and a locking frame body 90 protruding toward the outer peripheral side is provided on the outer peripheral surface of the front part of the second split barrel portion 80b. In embodiment 1, a pair of locking claw portions 88, 88 are provided on the left and right sides of the first split barrel portion 80a, and a pair of locking frames 90, 90 are provided on the left and right sides of the second split barrel portion 80b. Thus, when each first split barrel portion 80a and each second split barrel portion 80b overlap in the up-down direction to form each wire insertion barrel portion 22, each locking claw portion 88 and / or each locking frame body 90 is elastically deformed and engaged. As a result, the separation of each first split barrel portion 80a and each second split barrel portion 80b is prevented, and each wire insertion barrel portion 22 is maintained in a roughly cylindrical shape.

[0047] Furthermore, a base portion 92 is provided at the rear end of the first split tube portion 80a, the second split tube portion 80b, and the connecting portion 84. In other words, the first split tube portion 80a, the second split tube portion 80b, and the connecting portion 84 protrude forward from the base portion 92. Fig.10 As shown, when viewed in the front-to-back direction, the base portion 92 is generally rectangular, but the portions corresponding to the first divided cylindrical portion 80a and the second divided cylindrical portion 80b are recessed into a generally semicircular shape and have a predetermined thickness dimension (front-to-back dimension).

[0048] When the upper holding body 76 and the other upper holding body 76 that is inverted vertically are assembled in the vertical direction to form the rear holding body 24, the base portion 92 and the other base portion 92 that is inverted vertically overlap in the vertical direction. Figure 1 , Figure 3 As shown, the pair of base portions 92, 92 overlap in the vertical direction to form a mounting tube portion 93 that is embedded in the inner peripheral side of the cylindrical end portion 52 of the wire lead-out port 18. That is, in a state where the rear retaining body 24 is assembled to the shield shell 20 to form the connector 10, the mounting tube portion 93 is embedded in the cylindrical end portion 52 and is located in front of each waterproof rubber 74.

[0049] In addition, a plurality of ribs 94 extending forward from the base portion 92 are provided on the upper surfaces of the first segmented tube portion 80a, the second segmented tube portion 80b, and the connecting portion 84, and these plurality of ribs 94 are separated from each other in the left-right direction. When viewed in the left-right direction, these plurality of ribs 94 are respectively roughly triangular or roughly trapezoidal, and have a portion whose vertical dimension gradually decreases from the rear toward the front. The first segmented tube portion 80a, the second segmented tube portion 80b, and the connecting portion 84 are respectively reinforced by these plurality of ribs 94.

[0050] In particular, by making the vertical dimension of the rear portion of each rib 94 larger than that of the front portion, when the rear retainer 24 is engaged with the wire lead-out port 18 of the shield case 20, the reinforcing effect of the portion close to the wire lead-out port 18 is more strongly exerted, and the wires 16 inserted into the wire insertion barrels 22 can be prevented from shifting near the wire lead-out port 18. In contrast, by making the vertical dimension of the front portion of each rib 94 smaller than that of the rear portion, elastic deformation of the first split barrel 80a or the second split barrel 80b is allowed to some extent, and when the wires 16 are greatly displaced relative to the first split barrel 80a or the second split barrel 80b, the possibility of damage to the wires 16 is reduced.

[0051] <Elastic locking piece 96> Furthermore, an elastic locking piece 96 is provided at the upper end of the base portion 92, and protrudes in a cantilever beam shape toward the rear, that is, toward the wire lead-out port 18 of the shielding shell 20. A pair of elastic locking pieces 96, 96 are provided at the upper retaining body 76, and each elastic locking piece 96 is separated from each other in the left-right direction. Specifically, each elastic locking piece 96 is provided at a position corresponding to the first split cylinder portion 80a and the second split cylinder portion 80b, respectively. In addition, a substantially rectangular fitting hole 98 is provided at the protruding end (rear end) of each of these elastic locking pieces 96, which penetrates in the up-down direction.

[0052] More specifically, each elastic locking piece 96 has a pair of rear protrusions 100, 100 that are separated from each other in the left-right direction and protrude rearward from the upper end of the base portion 92, and a connecting portion 102 that connects the protruding top ends (rear ends) of these rear protrusions 100. And, the region surrounded by these rear protrusions 100 and the connecting portion 102 constitutes the fitting hole 98. Figure 7 , Fig.10 As shown in FIG. 1 , a downward extension portion 104 extending downward along the rear surface of the base portion 92 is provided at the protruding base end portion (front end portion) of each rear protruding portion 100. Figure 4 , Fig.10As shown, the outer surfaces in the left-right direction of each of the lower extending portions 104 separated from each other in the left-right direction are provided with crushing ribs 118 of the second engaging portion 120 described later.

[0053] In addition, on the left-right outer surface of the base portion 92, an elastic locking frame 106 protruding downward is provided on the left end surface, and a locking claw portion 108 protruding rightward is provided on the right end surface. The elastic locking frame 106 can be elastically deformed in the left-right direction, and the upper holding body 76 and the other upper holding body 76 that is reversed up and down are opposed to each other in the up-down direction, and the elastic locking frame 106 and the locking claw portion 108 are engaged, thereby forming the rear holding body 24. That is, in addition to the engagement of the locking claw portion 88 and the locking frame 90, the elastic locking frame 106 and the locking claw portion 108 are engaged, thereby preventing the pair of upper holding bodies 76, 76 from separating, and forming the rear holding body 24.

[0054] In addition, the elastic locking frame 106 has a pair of lower protrusions 110, 110 separated from each other in the front-to-back direction and protruding downward from the base portion 92, and a connecting portion 112 connecting the protruding top ends (lower ends) of these lower protrusions 110. And, the locking claw portion 108 is engaged with the area surrounded by these lower protrusions 110 and the connecting portion 112.

[0055] <First Engaging Section 116 and Second Engaging Section 120> Here, the rear retaining body 24 has a first engaging portion 116 and a second engaging portion 120. The first engaging portion 116 has crushing ribs 114 and 114 provided on both sides in the first direction (up-down direction) and engages with the first engaged portion 56 constituting the engaged portion 54. The second engaging portion 120 has crushing ribs 118 and 118 provided on both sides in the second direction (left-right direction) and engages with the second engaged portion 58 constituting the engaged portion 54. As described above, in the wire lead-out port 18, a plurality of first engaged portions 56 are arranged on both sides in the second direction (left-right direction), and a plurality of second engaged portions 58 are arranged on both sides in the first direction (up-down direction). Therefore, in the rear retaining body 24, a plurality of first engaging portions 116 are arranged on both sides in the second direction, and a plurality of second engaging portions 120 are arranged on both sides in the first direction.

[0056] Specifically, in the upper retaining body 76, the first engaging portion 116 is formed in a convex shape protruding from the outer peripheral surface of the elastic locking frame 106 provided at the left end toward the outer peripheral side (left side). That is, in the middle part in the vertical direction of a pair of lower protrusions 110, 110 separated in the front-back direction in the elastic locking frame 106, there are provided longitudinal wall portions 122, 122 protruding to the left and extending in the vertical direction. In addition, the protruding top end (left end) of each longitudinal wall portion 122 is connected by a connecting wall portion 124. Figure 8 , Fig. 9 As shown, the area surrounded by each vertical wall portion 122 and the connecting wall portion 124 forms a substantially rectangular through hole 126 penetrating in the vertical direction. In addition, the first engaging portion 116 is formed including each vertical wall portion 122 and the connecting wall portion 124, and the upper and lower end surfaces of the connecting wall portion 124 are provided with crushing ribs 114, 114 protruding from both sides of each vertical wall portion 122 in the first direction (up and down direction). By assembling the pair of upper retaining bodies 76, 76 of such a shape with each other in the vertical direction, the first engaging portion 116 is respectively provided on both sides of the second direction (left and right direction) of the rear retaining body 24. Furthermore, since the first engaging portion 116 is provided protrudingly from the outer peripheral surface of the elastic locking frame 106 constituting the base portion 92, it is also provided protrudingly from the outer peripheral surface of the mounting cylinder portion 93 constituted by the pair of base portions 92, 92.

[0057] In the single state of the upper holding body 76 before the first engaging portion 116 is engaged with the first engaged portion 56, the vertical dimension C between the protruding tips of the crushing ribs 114 (see Fig.10 ) is larger than the vertical dimension A of the first engaged portion 56. Thus, when the rear retaining body 24 is engaged with the wire lead-out port 18 and each first engaging portion 116 is engaged with each first engaged portion 56, each first engaging portion 116 is pressed against each first engaged portion 56 on both sides in the first direction (vertical direction) through each crushing rib 114. In addition, when each first engaging portion 116 is engaged with each first engaged portion 56, each first engaging portion 116 does not protrude toward the outer peripheral side of the wire lead-out port 18 but is accommodated in each first engaged portion 56.

[0058] As described above, in the upper holding body 76, the crushing ribs 118, 118 of the second engaging portion 120 are provided on the outer surfaces in the left-right direction of each lower extending portion 104 extending downward from a pair of rear protruding portions 100, 100 separated in the left-right direction in each elastic locking piece 96. Specifically, each crushing rib 118 is provided at the upper end portion of each lower extending portion 104, and each second engaging portion 120 is formed including the upper end portion of each lower extending portion 104. That is, each convex second engaging portion 120 is formed including each lower extending portion 104 protruding from each elastic locking piece 96 toward the electric wire 16 side (lower side) on the base end side (front side) of each elastic locking piece 96 of the rear holding body 24 (upper holding body 76). By assembling the pair of upper holding bodies 76 and 76 having such shapes to each other in the up-down direction, the second engaging portions 120 are provided on both sides of the rear holding body 24 in the first direction (up-down direction).

[0059] In the single state of the upper holding body 76 before the second engaging portion 120 is engaged with the second engaged portion 58, the left-right dimension D between the protruding tips of the crushing ribs 118 (see Fig.10 ) is larger than the left-right dimension B of the second engaged portion 58. Thus, when the rear retaining body 24 is engaged with the wire outlet 18 and each second engaging portion 120 is engaged with each second engaged portion 58, each second engaging portion 120 is pressed against each second engaged portion 58 on both sides in the second direction (left-right direction) through each crushing rib 118. Figure 3 As shown, a space may be provided between the lower extension portions 104 in the left-right direction, so that when the crushing ribs 118 are pressed against the second engaged portions 58 , the lower extension portions 104 can be elastically deformed slightly inward in the opposing direction.

[0060] By making the upper holding body 76 in such a shape, the mold used for forming can be pulled out in the vertical direction when the upper holding body 76 is formed. As a result, the types of molds will not increase, and the increase in cost can be avoided. In addition, even if the upper holding body 76 and the lower holding body 78 are made of the same shape, the increase in the number of types of parts can be suppressed, and the cost can be reduced. In addition, the upper holding body and the lower holding body do not necessarily have to be the same shape.

[0061] <Assembly of Connector 10> Hereinafter, a specific example of a method for assembling the connector 10 will be described. In addition, the method for assembling the connector 10 is not limited to the form described below.

[0062] First, the core wire 34 exposed by stripping the insulating coating 36 at the terminal of each electric wire 16 is fixed to the wire fixing portion 32 of each terminal body 28, and each clamp spring 30 is installed at the rear end of each terminal body 28. Thus, each terminal 12 is connected to the terminal of each electric wire 16. Then, each waterproof rubber 74 is externally installed on each electric wire 16.

[0063] Next, each wire 16 assembled with each terminal 12 and each waterproof rubber 74 is inserted from the front opening 39 of each connector housing 14. After each terminal 12 is inserted to a predetermined position, each connector housing 14 assembled with each terminal 12 is inserted from the front opening (wire lead-out port 18) of the shield shell 20, and each connector housing 14 and the shield shell 20 are fixed, for example, by concave-convex fitting. In addition, the front retaining body 66 is assembled to the cylindrical portion 64 of the shield shell 20 from above. Thus, as shown in FIG. Figure 5 As shown, the electric wires 16 are led out to the outside (front) from the electric wire lead-out ports 18 of the shield case 20. Furthermore, the fastening bolts 70 are inserted into the bolt insertion holes 72 at an appropriate timing.

[0064] Then, if Figure 5As shown, the upper holding body 76 and the lower holding body 78, i.e., the other upper holding body 76 which is the upside-down upper holding body 76, are placed in the vertical direction opposite to each other in the portion of each electric wire 16 which is led out from each electric wire lead-out port 18 of the shielding case 20 so as to sandwich each electric wire 16 from above and below. Then, the pair of upper holding bodies 76, 76 are brought close to each other in the vertical direction, and each locking claw 88 and each locking frame 90, and each elastic locking frame 106 and each locking claw 108 are engaged. Thus, the rear holding body 24 is mounted at the position of each electric wire 16 which is separated from the shielding case 20 in the front direction.

[0065] Next, the rear retaining body 24 attached to each electric wire 16 is moved rearward toward the shielding case 20. As a result, each elastic locking piece 96 protruding rearward in the rear retaining body 24 is inserted into each locking piece receiving portion 60 opened forward in the electric wire lead-out port 18 of the shielding case 20, and each elastic locking piece 96 is received in each locking piece receiving portion 60. And, with the elastic deformation of each elastic locking piece 96, each elastic locking piece 96 passes over each locking protrusion 62 provided on the bottom surface of each locking piece receiving portion 60, so that each locking protrusion 62 is inserted into each fitting hole 98 of each elastic locking piece 96 and engaged therewith.

[0066] In addition, each of the first engaging portions 116 and each of the second engaging portions 120 are inserted into each of the first engaged portions 56 and each of the second engaged portions 58, which are both opened forward in the wire lead-out port 18 of the shield shell 20. As a result, each of the crushing ribs 114 of each of the first engaging portions 116 and each of the crushing ribs 118 of each of the second engaging portions 120 are compressed and deformed in a manner of being crushed by each of the first engaged portions 56 and each of the second engaged portions 58, so that each of the first engaging portions 116 and each of the second engaging portions 120 are crimped to each of the first engaged portions 56 and each of the second engaged portions 58. As a result, the rear retaining body 24 is fitted into the wire lead-out port 18 of the shield shell 20, and the connector 10 is completed.

[0067] According to the connector 10 of the first embodiment having the structure as described above, the first engaging portion 116 having the crushing ribs 114 and the second engaging portion 120 having the crushing ribs 118 in the rear retaining body 24 are fitted into the plurality of engaged portions 54 (the first engaged portion 56 and the second engaged portion 58) in the wire lead-out port 18 of the shielding shell 20. In particular, since the crushing ribs 114 and 118 are deformed in a crushing manner with respect to the first engaged portions 56 or the second engaged portions 58, the first engaging portions 116 or the second engaging portions 120 are pressed against the first engaged portions 56 and the second engaged portions 58, so that the shaking of the shielding shell 20 and the rear retaining body 24 can be prevented. Thus, even if external forces such as vibration input from the outside act on the wires 16, for example, when the wires 16 vibrate in the up-down direction or the left-right direction, the rear retaining body 24 can be prevented from shifting relative to the shielding shell 20 and causing external forces to act on the terminals 12 connected to the wires 16.

[0068] In particular, each first engaging portion 116 and each first engaged portion 56 are provided on both sides of the second direction (left-right direction), and each second engaging portion 120 and each second engaged portion 58 are provided on both sides of the first direction (up-down direction). Thus, in the circumferential direction of the wire lead-out port 18, each first engaging portion 116 and each first engaged portion 56 and each second engaging portion 120 and each second engaged portion 58 can be symmetrically arranged in the left-right direction and the up-down direction, and displacement of the rear retaining body 24 relative to the shielding shell 20 can be further suppressed.

[0069] The insulating coating 36 in each wire 16 is pressed radially inward by each wire pressing protrusion 86 in the rear retaining body 24, so that each wire 16 is inserted and retained in each wire insertion barrel 22 in a crimped state. As a result, the displacement amount of each wire 16 relative to the rear retaining body 24 can be suppressed to be small. In particular, in the first embodiment, the plurality of wire pressing protrusions 86 in each wire insertion barrel 22 that are separated in the circumferential direction are also separated in the axial direction, and the displacement (twist) of each wire 16 in the rotational direction can also be effectively suppressed.

[0070] The rear retaining body 24 has elastic locking pieces 96, and the shielding shell 20 has locking protrusions 62. The locking protrusions 62 are inserted into the elastic locking pieces 96, so that the rear retaining body 24 is engaged with the wire lead-out port 18 of the shielding shell 20. Thus, the rear retaining body 24 can be assembled with respect to the shielding shell 20 with a simple structure of the elastic locking pieces 96 and the locking protrusions 62. In particular, since the shielding shell 20 is provided with the locking piece receiving portions 60 that are opened on the outer peripheral surface and receive the elastic locking pieces 96, the protrusion amount of the elastic locking pieces 96 from the locking piece receiving portions 60 can be reduced or made zero. Thus, the size of the rear retaining body 24 and the shielding shell 20, and further the size of the connector 10, can be reduced. In addition, the possibility that the engagement between the elastic locking pieces 96 and the locking protrusions 62 is accidentally released and the rear retaining body 24 falls off from the shielding shell 20 can also be reduced.

[0071] In particular, each second engaged portion 58 is provided at the bottom of each locking piece receiving portion 60 that receives each elastic locking piece 96, and each second engaging portion 120 that is pressed into each second engaged portion 58 is provided at the base end side (front side) of each elastic locking piece 96. That is, each locking piece receiving portion 60 and each second engaged portion 58 are provided continuously in the upper wall portion 40 and the lower wall portion 42 of the shielding shell 20 in the up-down direction, and it is possible to avoid enlarging the shielding shell 20 compared with, for example, the case where each locking piece receiving portion and each second engaged portion are provided at different positions in the circumferential direction of the wire lead-out port. Similarly, each elastic locking piece 96 and each second engaging portion 120 can be provided at the same position in the circumferential direction of the mounting cylinder portion 93 in the rear retaining body 24, and it is also possible to avoid enlarging the rear retaining body 24.

[0072] When the rear retaining body 24 is fitted to the shield shell 20, each first engaging portion 116 does not protrude toward the outer peripheral side of the wire lead-out port 18 but is accommodated in each first engaged portion 56. Thus, each first engaging portion 116 can be prevented from accidentally falling off from each first engaged portion 56 due to contact with other components or an operator.

[0073] <Modification> As a specific example of the present invention, the embodiment is described in detail, but the present invention is not limited to the specific description. Variations and improvements within the scope of the present invention are included in the present invention. For example, the following variations of the embodiment are also included in the technical scope of the present invention.

[0074] (1) The shape of the terminal 12 in the above embodiment is merely illustrative and not intended to be limiting. That is, in the above embodiment, the terminal 12 has a cylindrical connecting portion 26 for inserting a pin-shaped counterpart terminal, but is not limited to this form. The counterpart terminal may be in the form of a flat protruding piece as described in, for example, International Publication No. 2021 / 145197, and in this case, the terminal only needs to have a substantially rectangular terminal insertion gap.

[0075] (2) In the above embodiment, a plurality of first engaged portions 56 and second engaged portions 58 are provided, and a plurality of first engaging portions 116 and second engaging portions 120 are provided corresponding to the plurality of first engaged portions 56 and second engaged portions 58, but the present invention is not limited to this embodiment. That is, in the connector of the present invention, as long as a plurality of engaged portions and first engaging portions and second engaging portions engaged with the engaged portions are provided, for example, only two engaged portions, one first engaging portion and one second engaging portion may be provided. Even in such a manner, the first direction shaking can be suppressed by the crushing ribs provided on both sides of the first direction (in the above embodiment, the up-down direction) in the first engaging portion, and the second direction shaking can be suppressed by the crushing ribs provided on both sides of the second direction (in the above embodiment, the left-right direction) in the second engaging portion. Therefore, the displacement of the rear retaining body relative to the shielding shell in two directions orthogonal to each other can be suppressed. In addition, the number of the first engaging portion or the second engaging portion is not limited, as long as at least one of each is provided.

[0076] (3) In the above embodiment, each locking piece receiving portion 60 is provided on the outer peripheral surface of the wire lead-out port 18 of the shielding shell 20, and each locking protrusion 62 is provided on the bottom surface of each locking piece receiving portion 60, but the present invention is not limited to this embodiment. That is, in the connector of the present invention, a locking piece receiving portion may not be provided. For example, the locking protrusion may protrude from the outer peripheral surface of the wire lead-out port of the shielding shell toward the outer peripheral side. In this case, each elastic locking piece is arranged to overlap with the outer peripheral surface of the wire lead-out port of the shielding shell.

[0077] (4) In the above embodiment, each second engaging portion 120 is provided on the base end side (front side) of each elastic locking piece 96, but the first engaging portion may be provided on the base end side of the elastic locking piece instead of the second engaging portion, or on this basis. That is, in the above embodiment, each elastic locking piece 96 is provided on both sides of the rear retaining body 24 in the up-down direction, but an elastic locking piece may be provided on one side or both sides of the rear retaining body in the left-right direction, and engaged with a locking protrusion provided on one side or both sides of the shielding shell in the left-right direction. In addition, in the connector of the present invention, the elastic locking piece is not necessary.

[0078] (5) In the above embodiment, the rear retaining body 24 is composed of the upper retaining body 76 and the lower retaining body 78 (a pair of upper retaining bodies 76, 76) of the same shape, but the upper retaining body and the lower retaining body may be of different shapes. In addition, the upper retaining body and the lower retaining body may be formed as one body. For example, a hinge portion may be provided at the end of one side of the circumference of the upper retaining body and the lower retaining body so that the upper retaining body and the lower retaining body can be opened and closed, and after the electric wire is clamped, the upper retaining body and the lower retaining body are fixed to each other by a locking mechanism or the like provided at the end of the other side of the circumference of the upper retaining body and the lower retaining body. Description of Reference Numerals

[0079] 10 Connectors 12 terminals 14 Connector housing 16 Wire 18 Wire outlet 20 Shielding shell 22 Wire insertion tube 24 Rear body 26 Cylindrical connection 28 Terminal body 30 Clip spring 32 Wire Fixing Department 34 core wire 36 Insulation coating 38 Terminal storage area 39 Front opening 40 Upper wall 42 Lower wall 44 Left wall 46 Right wall 48 rear wall 50 Divider 52 barrel end 54 Engaged part 56 1st engaged portion 58 Second engaged portion 60 Locking piece storage part 62 Locking protrusion 64 cylindrical part 66 Front Retainer 68 Through hole 70 Fastening bolt 72 Bolt insertion hole 73 Fixed components 74 Waterproof rubber 76 Upper retaining body 78 Lower retaining body 80 Split barrel 80a 1st split tube 80b Second split tube 82 Gap 84 Connection 86 Wire pressing protrusion 88 Locking claw 90 Lock frame 92 Base 93 Install the barrel 94 Ribs 96 elastic locking piece 98 fitting holes 100 Rear protrusion 102 Connection 104 Lower extension 106 elastic locking frame 108 Locking claw 110 Lower protrusion 112 Connection 114 Crushed Rib 116 1st engagement part 118 Crushed rib 120 second engagement portion 122 Vertical wall 124 Connecting wall 126 Through hole

Claims

1. A connector having: A terminal is received in the connector housing; An electric wire connected to the terminal and led out to the outside of the connector housing; a metal shield shell fixed to the connector housing and covering the connector housing, and having a cylindrical wire lead-out port for leading out the wires; and The rear retaining body made of synthetic resin has a wire insertion barrel, which is engaged with the wire lead-out port, and the wire is inserted through and retained in the wire insertion barrel in a crimped state, wherein: The wire lead-out port of the shield shell has a plurality of engaged portions that are separated from each other in the circumferential direction of the wire lead-out port. The rear retaining body has a first engaging portion and a second engaging portion, the first engaging portion having crushing ribs disposed on both sides of a first direction orthogonal to the extension direction of the electric wire, and engaging with the engaged portion, the second engaging portion having crushing ribs disposed on both sides of a second direction orthogonal to both the extension direction of the electric wire and the first direction, and engaging with the engaged portion, When the rear retaining body is engaged with the wire outlet, the first engaging portion is pressed against the engaged portion via the crushing ribs on both sides in the first direction, and the second engaging portion is pressed against the engaged portion via the crushing ribs on both sides in the second direction.

2. The connector according to claim 1, wherein: The plurality of engaged portions of the wire lead-out port include a plurality of first engaged portions arranged on both sides of the second direction and a plurality of second engaged portions arranged on both sides of the first direction. The rear holding body includes a plurality of the first engaging portions arranged on both sides of the second direction and a plurality of the second engaging portions arranged on both sides of the first direction. In the engaged state where the rear retaining body is engaged with the wire lead-out port, on both sides of the second direction, the first engaging portion is pressed against the first engaged portion via the crushing ribs on both sides of the first direction, and on both sides of the first direction, the second engaging portion is pressed against the second engaged portion via the crushing ribs on both sides of the second direction.

3. The connector according to claim 1 or claim 2, wherein: The diameter of the inner circumference of the wire insertion barrel of the rear retainer is larger than the diameter of the outer circumference of the wire inserted into the wire insertion barrel. A plurality of wire pressing protrusions are provided on the inner peripheral surface of the wire insertion cylinder so as to be spaced apart from each other, and the wire pressing protrusions protrude radially inward from the outer peripheral surface of the wire. The insulating coating forming the outer peripheral surface of the electric wire is pressed radially inward by each of the electric wire pressing protrusions, so that the electric wire is inserted through the electric wire insertion barrel in a crimped state and is held.

4. The connector according to claim 1 or claim 2, wherein: The rear retaining body has an elastic locking piece protruding in a cantilever beam shape toward the wire lead-out port of the shielding shell, and the elastic locking piece has a fitting hole at the protruding end. The shield shell has a locking protrusion protruding toward the outer peripheral surface of the wire lead-out port, The rear holding body is fitted with the wire lead-out port of the shielding case by fitting the locking protrusion of the shielding case into the fitting hole of the elastic locking piece of the rear holding body.

5. The connector according to claim 4, wherein: The wire lead-out port of the shield shell has a concave locking piece receiving portion opened on the outer peripheral surface of the wire lead-out port, and the locking protrusion is protrudingly provided on the bottom surface of the locking piece receiving portion. When the rear holding body is in a fitted state with respect to the shield case, the elastic locking piece of the rear holding body is accommodated in the locking piece accommodation portion.

6. The connector according to claim 5, wherein: A plurality of notch-shaped engaged portions are provided at the cylindrical end portion of the wire lead-out port of the shield shell on the lead-out direction side of the wire, penetrating in the plate thickness direction and opening at the end surface on the lead-out direction side. At least one of the engaged portions is provided to be open on the bottom surface of the locking piece receiving portion, The protruding second engagement portion is provided on the base end side of the elastic locking piece of the rear holding body. The second engagement portion protrudes from the elastic locking piece toward the electric wire side and is pressed into the at least one engaged portion.

7. The connector according to claim 6, wherein: The rear retaining body includes a mounting tube portion embedded in the inner peripheral side of the cylindrical end portion of the wire lead-out port, and the convex first engaging portion protruding from the outer peripheral surface of the mounting tube portion. In a state where the rear holding body is fitted to the shield shell, the first engaging portion is housed in the engaged portion without protruding toward the outer peripheral side of the wire lead-out port.

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