CN117693868A - Charging connector - Google Patents

Abstract

The object is to provide a technique capable of facilitating the mounting work of a grommet. The charging connector (10) is provided with a power terminal (22), a signal terminal (24), a housing (50) for holding the power terminal (22) and the signal terminal (24), a holding body (60) combined with the housing (50), a relay terminal (28) electrically connected with the power terminal (22) and extending in a direction intersecting with the insertion/extraction direction of the external charging connector, a power line (32) electrically connected with the power terminal (22) through the relay terminal (28), a signal line (34) electrically connected with the signal terminal (24), and a wire protection sleeve (90) for covering the rear end part of the housing (50) to the middle part of the power line (32) and the signal line (34) together. The holding body (60) has a wall protruding in the insertion/extraction direction, the wall has a restricting wall (65) restricting the position of the relay terminal (28), and a reinforcing rib (67) is provided on the outer surface of the restricting wall (65) at the end in the extension direction of the relay terminal (28).

Description

Charging connector

Technical Field

The present disclosure relates to charging connectors.

Background

Patent document 1 discloses a socket assembly provided in a vehicle that charges an internal power storage device using an external power supply. A grommet is attached to the back side of the socket base described in patent document 1.

Prior art literature

Patent literature

Patent document 1: japanese patent laid-open publication No. 2011-175764

Disclosure of Invention

Problems to be solved by the invention

The installation operation of the wire sheath is troublesome.

Accordingly, an object is to provide a technique that can facilitate the work of attaching a grommet.

Means for solving the problems

The charging connector of the present disclosure is mounted on a vehicle, is fitted to an external charging connector connected to an external power supply of the vehicle, and is configured to charge a battery provided in the vehicle, and includes: a 1 st power terminal and a 2 nd power terminal for supplying electric power to the battery; a plurality of signal terminals; a housing that holds the 1 st power terminal, the 2 nd power terminal, and the plurality of signal terminals, and that is fitted to the external charging connector at a tip portion along a direction in which the external charging connector is inserted and removed; a holding body which is combined with a rear end portion of the housing and holds the 1 st power terminal, the 2 nd power terminal, and the plurality of signal terminals together with the housing; a 1 st relay terminal and a 2 nd relay terminal electrically connected to rear end portions of the 1 st power terminal and the 2 nd power terminal, and extending in a direction intersecting the insertion/extraction direction; a 1 st power line and a 2 nd power line electrically connected to the 1 st power terminal and the 2 nd power terminal via the 1 st relay terminal and the 2 nd relay terminal, respectively; a plurality of signal lines electrically connected to the plurality of signal terminals, respectively; and a wire sheath that covers the rear end portion of the housing together with the intermediate portion of the power line and the signal line, wherein the wire sheath is provided with an opening portion that covers the rear end portion of the housing, wherein the holder has a wall that protrudes in the insertion/extraction direction, wherein the wall has a restricting wall that restricts the position of the relay terminal, wherein a reinforcing rib is provided on an outer surface of an end portion of the restricting wall in the extending direction of the relay terminal, and wherein the wire sheath has a flange portion that is provided around the opening portion.

Effects of the invention

According to the present disclosure, the installation work of the grommet becomes easy.

Drawings

Fig. 1 is a plan view showing a charging connector according to embodiment 1 and an assembly method thereof.

Fig. 2 is a perspective view showing the charging connector of embodiment 1.

Fig. 3 is an exploded perspective view showing the charging connector of embodiment 1.

Fig. 4 is a front view showing the charging connector of embodiment 1.

Fig. 5 is a sectional view taken along line V-V of fig. 4.

Fig. 6 is a diagram illustrating a terminal-equipped wire and its storage position.

Fig. 7 is a diagram illustrating the wire paths in the charging connector.

Fig. 8 is a front view showing the grommet.

Fig. 9 is a perspective view showing a case where the grommet is temporarily held by the holder.

Fig. 10 is a rear view of the housing.

Fig. 11 is a plan view showing a case where the grommet is attached to the case and the holder.

Fig. 12 is a plan view showing a case where the grommet is temporarily held by the holder.

Fig. 13 is a rear view showing a charging connector of a modification.

Detailed Description

[ description of embodiments of the present disclosure ]

First, embodiments of the present disclosure will be described.

The charging connector of the present disclosure is as follows.

(1) A charging connector mounted on a vehicle and fitted to an external charging connector connected to an external power supply of the vehicle, the charging connector being configured to charge a battery provided in the vehicle, the charging connector comprising: a 1 st power terminal and a 2 nd power terminal for supplying electric power to the battery; a plurality of signal terminals; a housing that holds the 1 st power terminal, the 2 nd power terminal, and the plurality of signal terminals, and that is fitted to the external charging connector at a tip portion along a direction in which the external charging connector is inserted and removed; a holding body which is combined with a rear end portion of the housing and holds the 1 st power terminal, the 2 nd power terminal, and the plurality of signal terminals together with the housing; a 1 st relay terminal and a 2 nd relay terminal electrically connected to rear end portions of the 1 st power terminal and the 2 nd power terminal, and extending in a direction intersecting the insertion/extraction direction; a 1 st power line and a 2 nd power line electrically connected to the 1 st power terminal and the 2 nd power terminal via the 1 st relay terminal and the 2 nd relay terminal, respectively; a plurality of signal lines electrically connected to the plurality of signal terminals, respectively; and a wire sheath that covers the rear end portion of the housing together with the intermediate portion of the power line and the signal line, wherein the wire sheath is provided with an opening portion that covers the rear end portion of the housing, wherein the holder has a wall that protrudes in the insertion/extraction direction, wherein the wall has a restricting wall that restricts the position of the relay terminal, wherein a reinforcing rib is provided on an outer surface of an end portion of the restricting wall in the extending direction of the relay terminal, and wherein the wire sheath has a flange portion that is provided around the opening portion. When the grommet is mounted, the peripheral edge portion of the opening in the grommet can be temporarily held by hooking the reinforcing rib of the wall of the holder. In addition, when the grommet is mounted, the operator can hold the flange portion for operation. Thus, the operation of attaching the grommet is facilitated.

(2) In the charging connector according to (1), the restricting wall may have a 1 st restricting wall and a 2 nd restricting wall facing each other with the relay terminal interposed therebetween, and the reinforcing rib provided in the 1 st restricting wall and the reinforcing rib provided in the 2 nd restricting wall may be formed in opposite directions to each other. Thus, the peripheral edge of the opening in the grommet is easily caught by the reinforcing rib of the holder when the grommet is attached.

(3) In the charging connector according to (1) or (2), a drain opening that opens in a direction intersecting the insertion/removal direction may be provided in the grommet, the wall may include a partition wall that partitions a rear end portion of the holder into a 1 st region corresponding to the 1 st power terminal, the 2 nd power terminal, and the plurality of signal terminals, and a 2 nd region located closer to the drain opening than the 1 st region, and an end portion of the partition wall may be in contact with an inner surface of the grommet. Thus, the space where the terminal is located and the space where the drain port is located are partitioned by the lower side wall and the grommet, and dust or the like that intrudes into the grommet from the drain groove hardly reaches the space where the terminal is located.

(4) In the charging connector of (3), the insertion and removal direction, the direction in which the drain port opens, and the direction in which the power line extends inside the grommet may be directions intersecting each other. Thus, when the grommet is disposed with the drain port facing vertically downward, the power line extends in a direction intersecting vertically downward, and thus water is less likely to enter from the outlet of the power line.

(5) In the charging connector according to any one of (1) to (4), the case may include a case body that holds the 1 st power terminal and the 2 nd power terminal and the plurality of signal terminals, and a vehicle mounting portion that is configured to be fastened to a bolt of the vehicle, the vehicle mounting portion may include a flange portion that protrudes outward from the case body, and 1 st and 2 nd ribs that protrude in the insertion/extraction direction from the flange portion, and the grommet may include a protrusion that is provided outside an opening portion of the case and protrudes toward the vehicle mounting portion, and the protrusion may be interposed between the 1 st and 2 nd ribs. Thereby, the rotation of the grommet and the case can be suppressed.

(6) In the charging connector according to (5), the vehicle mounting portion may have a coupling rib that couples the 1 st rib and the 2 nd rib to each other, and the protrusion may be fitted between the 1 st rib and the 2 nd rib at a position avoiding the coupling rib. Thus, the rotation is stopped by the protrusion, and the rigidity of the mounting portion is improved by the connecting rib.

(7) In the charging connector according to any one of (1) to (6), the housing may include a housing main body that holds the 1 st power terminal, the 2 nd power terminal, and the plurality of signal terminals, and a vehicle mounting portion that is configured to be fastened to a bolt of the vehicle, the vehicle mounting portion may include a flange portion that protrudes outward from the housing main body, and a plurality of ribs that protrude in the insertion/removal direction from the flange portion, the flange portion may include a 1 st mounting hole and a 2 nd mounting hole that is closer to the housing main body than the 1 st mounting hole, and the plurality of ribs may be provided so that rigidity of a portion where the 2 nd mounting hole is formed is higher than rigidity of a portion where the 1 st mounting hole is formed. Since the 2 nd mounting hole is closer to the cylindrical portion of the housing than the 1 st mounting hole, the force applied from the vehicle to the portion where the 2 nd mounting hole is formed is easily larger than the force applied to the portion where the 1 st mounting hole is formed. Even in this case, the rigidity of the portion where the 2 nd mounting hole is formed is improved, so that cracking of the vehicle mounting portion and the like can be suppressed.

[ details of embodiments of the present disclosure ]

Specific examples of the charging connector of the present disclosure are described below with reference to the drawings. The present disclosure is not limited to these examples, but is set forth in the claims, and is intended to include all modifications within the meaning and scope equivalent to the claims.

Embodiment 1

The charging connector of embodiment 1 will be described below.

< concerning vehicle >

First, a vehicle incorporating a charging connector will be described.

The vehicle incorporating the charging connector is an electric vehicle provided with a power storage device and a motor. The vehicle runs by driving the motor with the electric power of the power storage device. The vehicle may be an electric vehicle having only a motor as a driving source, or a hybrid vehicle having a motor and an engine. The power storage device in the vehicle is charged with electric power supplied from an external power source. The charging connector is configured to be electrically connected by being inserted into an external charging connector. The external charging connector is a connector of a charging cable extending from an external power source.

As a charging method of the power storage device in the vehicle, there are general charging and quick charging. The quick charge can be performed in a shorter time than the ordinary charge by flowing a current larger than the ordinary charge. It is envisaged that normal charging uses a domestic power supply or an external power supply equivalent thereto. In the quick charge, it is envisaged to use a dedicated power supply such as a charging peg. It is assumed that the charging connector of the present disclosure is explained as a charging connector corresponding to quick charging.

< charging connector in vehicle >

An assembly method of the charging connector in the vehicle will be described with reference to fig. 1. Fig. 1 is a plan view showing charging connector 10 according to embodiment 1 and an assembly method thereof.

The charging connector 10 is mounted to a mounting portion 100 provided on an outer surface of a vehicle body in a vehicle, for example. Fig. 1 shows an example of the mounting portion 100. The mounting portion 100 is formed, for example, in a concave shape in which a part of a panel constituting a vehicle body is recessed toward the inside of the vehicle. A through hole 104 is formed in the bottom panel 102 of the mounting portion 100.

A connection portion with an external charging connector is provided on the front side of the charging connector 10. The connection portion includes a portion that is inserted into the external charging connector to be electrically connected. A portion of the charging connector 10 including the connection portion penetrates the through hole 104 and is exposed to the outside of the panel 102. The other part of the charging connector 10 is disposed on the vehicle inner side of the panel 102. In general, the mounting portion 100 is provided with a vehicle body side cover 106. The vehicle body side cover 106 is openably and closably attached by a hinge or the like. In a state where the vehicle body side cover 106 is closed, the vehicle body side cover 106 covers the opening of the panel 102. In a state where the vehicle body side cover 106 is opened, the charging connector 10 is exposed, and the charging connector 10 can be accessed from the outside.

In the present disclosure, as shown in fig. 1, the X direction of the X direction, the Y direction, and the Z direction orthogonal to each other is a direction parallel to a direction in which the charging connector 10 penetrates the penetration hole 104 of the panel 102. The charging connector 10 and the external charging connector are connected in the X direction. The Z direction is, for example, the vertical direction. For example, when the charging connector 10 is provided on the side surface of the vehicle, the Y direction becomes the front-rear direction of the vehicle. For example, in the case where the charging connector 10 is provided on the front surface or the rear surface of the vehicle, the Y direction becomes the width direction of the vehicle. Hereinafter, the members not in the mounted state will be described in terms of directions corresponding to the X direction, the Y direction, and the Z direction when the members are in the mounted state.

< integral Structure >

The overall structure of the charging connector 10 is described with reference to fig. 2 to 7 in addition to fig. 1. Fig. 2 is a perspective view showing the charging connector 10 of embodiment 1. Fig. 3 is an exploded perspective view showing the charging connector 10 of embodiment 1. Fig. 4 is a front view showing the charging connector 10 of embodiment 1. Fig. 5 is a sectional view taken along line V-V of fig. 4. Fig. 6 is a diagram illustrating the terminal-attached electric wire 38 and its storage position. Fig. 7 is a diagram illustrating the path of the electric wire 30 in the charging connector 10. In addition, the electric wire 30 is omitted in fig. 3. In fig. 6, a part of the terminal-attached electric wire 38 is omitted.

The charging connector 10 includes a terminal 20, a wire 30, a thermistor unit 40, a housing 50, a holder 60, a wire cover 70, a cover unit 80, and a wire sheath 90.

< terminal >

The terminals 20 include connector terminals 21 and relay terminals 28. The connector terminal 21 is accommodated in the housing 50. The connector terminal 21 is connected to a terminal of the counterpart connector. The number and types of the connector terminals 21 are appropriately set according to the specifications of the charging connector 10 and the like. In the example of the present embodiment, two power terminals 22, six signal terminals 24, and one ground terminal 26 are provided as the connector terminals 21. Relay terminal 28 is interposed between power terminal 22 and wire 30. The relay terminals 28 are provided in the same number (two in this case) as the power terminals 22. Each terminal 20 is formed by press working (bending working) a metal plate. The two power terminals 22 are examples of the 1 st and 2 nd power terminals. The two relay terminals 28 are examples of the 1 st and 2 nd relay terminals. One of the 1 st power terminals may be set as either one of the two power terminals 22. One of the 1 st relay terminals may be any of the two relay terminals 28.

The power terminal 22 includes a mating connection portion 23a, a terminal fixing portion 23b, and a protruding portion 23c. The power terminal 22 further has a thermistor mounting portion 23d. The signal terminal 24 has a counterpart connection portion 25a, an electric wire connection portion 25b, and a protruding portion 25c. The ground terminal 26 has a counterpart connection portion 27a, a wire connection portion 27b, and a protruding portion 27c. The relay terminal 28 has a terminal fixing portion 29a and an electric wire connecting portion 29b.

The counterpart connecting portions 23a, 25a, 27a are portions electrically connected to the connector terminals of the external charging connector. Holes through which the screws S can be inserted are formed in the terminal fixing portions 23b and 29 a. The power terminal 22 and the relay terminal 28 are electrically connected and fixed by being fixed by the screw S in the terminal fixing portions 23b, 29 a. The wire connection portions 25b, 27b, 29b are crimp portions. The signal terminal 24, the ground terminal 26, and the relay terminal 28 are respectively crimped to the end portions of the corresponding electric wires 30 via the electric wire connection portions 25b, 27b, and 29 b. Thereby, the signal terminal 24, the ground terminal 26, and the relay terminal 28 are electrically connected to the corresponding electric wires 30, respectively, and are fixed. The protruding portions 23c, 25c, 27c are provided in the intermediate portions of the respective connector terminals 21. The protruding portions 23c, 25c, 27c are portions pressed by the holder 60. The thermistor mounting portion 23d is a portion to which the thermistor unit 40 is mounted.

< electric wire >

One end of each wire 30 is connected to the terminal 20. The other end portion of each wire 30 extends outward from the grommet 90. In a state where the charging connector 10 is mounted on a vehicle, the other end portion of each electric wire 30 is connected to another device mounted on the vehicle. Such a device is appropriately set according to the type of the electric wire 30, and for example, a battery, an Electronic Control Unit (ECU), and the like are conceivable. The number and kind of the electric wires 30 correspond to the number and kind of the connector terminals 21. In the example of the present embodiment, the electric wire 30 includes two electric power lines 32, six signal lines 34, and one ground line 36. One end of the power line 32 is connected to the relay terminal 28. The power line 32 is connected to the power terminal 22 via the relay terminal 28. One end of the signal line 34 is connected to the signal terminal 24. One end of the ground wire 36 is connected to the ground terminal 26. One end of the thermistor wire 44 is connected to the thermistor 42.

Each wire 30 is a covered wire. The covered electric wire has a core wire 31a and a covering portion 31b covering the core wire 31 a. The core wire 31a is formed by twisting a plurality of wires made of metal, for example. The coating portion 31b is formed by, for example, extrusion molding of an insulating resin around the core wire 31 a. As the plurality of electric wires 30, a plurality of electric wires 30 having different thicknesses are used. The thickness of the electric wire 30 is set according to an allowable current value or the like. In general, in order to increase the allowable current value, it is necessary to increase the conductor cross-sectional area, and accordingly, the thickness of the wire 30 becomes thicker. In addition, the thickness of the electric wire 30 is generally related to the bending difficulty of the electric wire 30, and as the electric wire 30 becomes thicker, the electric wire 30 becomes difficult to bend. For example, when the electric wire that is easy to bend and the electric wire that is difficult to bend are bent at the same angle, the radius of curvature of the electric wire that is difficult to bend is larger than that of the electric wire that is easy to bend, and accordingly, a large arrangement space is required.

In this example, the power line 32 is thicker than the ground line 36 and the signal line 34. Therefore, the power line 32 is less likely to bend than the ground line 36 and the signal line 34. In addition, the ground line 36 is thicker than the signal line 34. Therefore, the ground line 36 is less likely to bend than the signal line 34.

< electric wire with terminal >

The terminal 20 and the electric wire 30 are electrically connected to each other by crimping and fixed to be integrated in the middle stage of manufacturing the charging connector 10. Thus, the integrated structure of the wire 30 and the terminal 20 is sometimes referred to as a terminal-attached wire 38. In this example, a terminal-equipped wire 38 in which the power line 32 and the relay terminal 28 are integrated, a terminal-equipped wire 38 in which the signal line 34 and the signal terminal 24 are integrated, and a terminal-equipped wire 38 in which the ground line 36 and the ground terminal 26 are integrated are provided.

As shown in fig. 5, a shrink tube 39 may be applied to the terminal-equipped wire 38. The shrink tube 39 covers the connection portion of the electric wire 30 and the terminal 20. This can prevent water from splashing into the connection portion between the electric wire 30 and the terminal 20, the water from entering the coating portion 31b, and the like. The shrink tube 39 covers, for example, a portion of the terminal 20 forward of a portion to which the electric wire 30 is connected to a portion of the electric wire 30 having the coating portion 31 b. The shrink tubing 39 is heat shrink tubing 39 that shrinks by heating. The heat shrinkage tube 39 is covered on the terminal-attached electric wire 38 in a state of a large diameter before being heated. Then, when the heat shrinkage tube 39 is heated and shrunk, it becomes a shape corresponding to the shape of the connection portion, so that it can be brought into close contact with the connection portion. For example, a hot melt adhesive may be provided on the inner surface of the heat shrinkable tube 39. This allows the hot-melt adhesive to fill the gap between the heat shrink tube 39 and the terminal 20 and the gap between the heat shrink tube 39 and the electric wire 30, thereby improving the waterproof property of the heat shrink tube 39. The heat shrinkable tube 39 may not have a hot melt adhesive provided on its inner surface. In the terminal-attached electric wire 38, the shrink tube 39 may be exposed without being provided at the connection portion between the electric wire 30 and the terminal 20. In the terminal-attached electric wire 38, a resin such as an adhesive may be provided at the connection portion between the electric wire 30 and the terminal 20 instead of the shrink tube 39.

< thermistor Unit >

The thermistor unit 40 measures the temperature of the power supply circuit. In the charging connector 10 for quick charging, since a large current flows in the power supply circuit for charging the battery, the temperature rise of the power supply circuit also increases accordingly. By monitoring the temperature of the power supply circuit using the thermistor unit 40, it is possible to suppress the temperature of the power supply circuit from becoming excessively high. The thermistor unit 40 has a thermistor 42 and a thermistor electric wire 44. In this example, a thermistor 42 is attached to each of the pair of power terminals 22, and the temperature of each of the pair of power terminals 22 is measured. One end of the thermistor wire 44 is connected to the thermistor 42. The other end portion of the thermistor wire 44 extends outward from the grommet 90, similarly to the other end portion of the wire 30. In a state where the charging connector 10 is mounted on a vehicle, the other end portion of the thermistor wire 44 is connected to, for example, an ECU. The thermistor wire 44 is thinner than the power line 32 and the ground line 36. Therefore, the thermistor wire 44 is more flexible than the power line 32 and the ground line 36.

< Shell >

The housing 50 holds the connector terminal 21 at a predetermined position (a position where it can be connected to the connector terminal 21 of the external charging connector). The housing 50 includes a housing main body 51, a vehicle mounting portion 54, and a wire pressing portion 57.

The connector terminal 21 is accommodated in the housing main body 51. The housing main body 51 has an outer frame portion 52 and a plurality of terminal holding portions 53. Each of the plurality of terminal holding portions 53 is formed in a cylindrical shape capable of accommodating the corresponding connector terminal 21. The outer frame 52 is formed in a tubular shape surrounding the periphery of the plurality of terminal holding portions 53. The plurality of terminal holding portions 53 and the outer frame portion 52 are connected to each other at an intermediate portion of the terminal holding portion 53 by a flat plate-like connecting portion. A cover unit 80 is mounted on the front of the housing main body 51. A holder 60 is attached to the rear of the housing main body 51.

The vehicle mounting portion 54 is a portion for mounting the charging connector 10 to the mounting portion 100. The vehicle mounting portion 54 is formed in a plate shape protruding from the middle portion of the housing main body 51 to the periphery of the outer frame portion 52. The vehicle mounting portion 54 is mounted to the mounting portion 100 by, for example, a screw S or the like.

The wire pressing portion 57 presses the intermediate portion of the wire 30 extending from the terminal 20. Accordingly, vibration generated on the other end side of the portion of the electric wire 30 pressed by the electric wire pressing portion 57 is less likely to be transmitted to the terminal 20, and friction between the terminal 20 and the housing main body 51 can be suppressed. The block-shaped arms 56 protrude from the outer frame 52 in the Y direction rearward of the housing main body 51. The arm 56 is provided with a wire pressing portion 57 at a distal end portion along a protruding direction protruding from the housing main body 51. The wire pressing portions 57 are provided with three. Two wire pressing portions 57 of the three wire pressing portions 57 press the two power lines 32, and the remaining one wire pressing portion 57 presses one ground wire 36.

< retainer >

The retainer 60 suppresses the terminal 20 from coming off the housing 50. The holder 60 includes a terminal pressing portion 61 and walls 65, 66.

The terminal pressing portion 61 presses the rear of the connector terminal 21 accommodated in the housing 50. This can prevent the connector terminal 21 from coming off the housing 50 rearward. The terminal pressing portion 61 includes a rear cover portion 62 and a plurality of protruding cylindrical portions 63.

The rear cover 62 closes the opening in the rear of the outer frame 52. A plurality of through holes are formed in the rear cover 62. A plurality of through holes are formed at positions corresponding to the respective terminal holding portions 53. The power terminal 22 and the relay terminal 28 are screwed while being in contact with each other through the through hole corresponding to the power terminal 22. The relay terminal 28 is disposed on the back surface of the rear cover 62. The signal line 34 and the ground line 36 are led out from through holes corresponding to the signal terminal 24 and the ground terminal 26.

The plurality of protruding cylinders 63 protrude forward (toward the case 50) from the rear cover 62. The plurality of protruding cylindrical portions 63 are formed at positions corresponding to the respective terminal holding portions 53. Each protruding cylinder 63 communicates with each through hole. The distal end of each protruding cylindrical portion 63 is inserted into the corresponding terminal holding portion 53, and the corresponding protruding portion 23c, 25c, 27c is pressed from the rear.

The walls 65 and 66 protrude rearward from the rear cover 62 in the insertion and removal direction. The wall 65 is a restricting wall 65 that restricts the position of the relay terminal 28. The portion of the relay terminal 28 connected to the power terminal 22 is arranged along the limiting wall 65. The restricting walls 65 separate the relay terminals 28 from each other. In addition, the limiting wall 65 separates the relay terminal 28 and the signal terminal 24. The wall 66 is a partition wall 66 that partitions the storage space and the drainage space of the terminal 20 inside the grommet 90.

The housing 50 and the holder 60 are provided with locking portions. In this example, as the locking portion, a locking projection formed in the housing 50 and a locking piece formed in the holder 60 are provided. The housing 50 and the holder 60 are maintained in a mutually attached state by the engagement of the engagement piece with the engagement projection.

< wire cover >

The wire cover 70 is attached to the wire pressing portion 57. The wire cover 70 suppresses the wire 30 from coming off the wire pressing portion 57. The wire cover 70 and the wire pressing portion 57 cover the entire circumference of the wire 30. In the present embodiment, two wire covers 70 are provided. One wire cover 70 of the two wire covers 70 presses the two power lines 32. The other wire cover 70 of the two wire covers 70 presses one ground wire 36.

< cover Unit >

The cover unit 80 is provided in front of the housing main body 51 so as to be openable and closable. The lid unit 80 is opened to expose the connection port of the housing main body 51. This allows the charging connector 10 to be connected to an external charging connector. The connection port of the housing main body 51 is closed by the cover unit 80, and thus the cover unit 80 closes. The cover unit 80 has a cover 82, a hinge unit 84, and a locking unit 86. The cover 82 is openably and closably attached to the housing main body 51 via a hinge unit 84. The locking unit 86 maintains the cover 82 in a closed state. At the time of the charging operation, the operator can operate the locking unit 86 to open the cover 82.

< protective wire sheath >

Regarding the grommet 90, in addition to fig. 1 to 7, description is made with reference to fig. 8. Fig. 8 is a front view showing the grommet 90.

The wire sheath 90 covers the housing 50 and the holder 60. The grommet 90 includes a 1 st protection portion 91 and a 2 nd protection portion 94. The 1 st protection portion 91 covers the rear end portion of the housing main body 51 and the holder 60. The 2 nd protection portion 94 covers the wire pressing portion 57. The grommet 90 is a member having flexibility. The grommet 90 is made of an elastomer such as EPDM. The grommet 90 is, for example, a mold integrated product.

The 1 st protection portion 91 is formed with a case outlet 92 and a drain port 93. The case outlet 92 is an example of an opening portion covering the rear end portion of the case 50. The front end portion of the case main body 51 extends outside the grommet 90 through the case outlet 92. The case outlet 92 is formed in a cylindrical shape extending in the X direction. The drain port 93 is an opening for draining water immersed in the charging connector 10 to the outside. Such water is supposed to enter from the front end portion of the case main body 51 when the cover unit 80 is opened, for example. The drain port 93 is formed in a cylindrical shape extending in the Z direction.

A strapping tape 98 is attached to the outer surface of the case outlet 92. The grommet 90 is mounted to the housing 50 with a strapping 98. An annular rib 92a is provided on the inner surface of the case outlet 92. The annular rib 92a is provided over the entire circumference on the inner surface of the case outlet 92. The annular rib 92a is in close contact with the outer surface of the housing main body 51 over the entire circumference. The strap 98 is tightened through the case exit 92, and the annular rib 92a is compressed between the inner surface of the case exit 92 and the outer surface of the case main body 51. This improves the water-stopping property between the outer surface of the case main body 51 and the inner surface of the case outlet 92.

The grommet 90 has a flange portion 92b and a projection 92c. The flange 92b and the projection 92c are provided around the housing outlet 92.

The flange 92b is provided around the distal end of the cylindrically extending case outlet 92. By providing the flange portion 92b, the operator can grasp the flange portion 92b to perform the attachment operation of the grommet 90. Further, by providing the flange portion 92b, misalignment of the strapping 98 to the distal end side of the case exit 92 can be suppressed. The flange 92b is provided around the housing outlet 92 over the entire circumference. The flange 92b may be provided at a part of the periphery of the case outlet 92. The projection 92c projects from the flange portion 92b toward the vehicle mounting portion 54. The projection 92c is used for positioning (rotation stopping) of the housing 50 and the wire sheath 90. As will be described in detail later.

The 2 nd protection portion 94 is formed with a wire outlet 95. The other end portion of the electric wire 30 extends outside the grommet 90 through the electric wire outlet 95. Three wire outlets 95 are provided in one wire sheath 90. Two wire outlets 95 among the three wire outlets 95 are provided for the two power lines 32. One power line 32 is passed through each of the two electric wire outlets 95. The signal line 34, the ground line 36, and the thermistor electric wire 44 are intensively passed through the remaining one wire outlet 95 among the three wire outlets 95.

< Path of wire in charging connector >

The power line 32 extends straight inside the grommet 90 from one end portion connected to the relay terminal 28 toward the other end portion, and extends outside the grommet 90 through the outlet. Therefore, one end of the power line 32 is not inserted into the through hole.

Two power lines 32 extend in the sheath 90 in a Z-direction aligned. The two power terminals 22 are accommodated in the case main body 51 in a Y-direction. The difference between the direction in which the two power lines 32 are arranged and the direction in which the two power terminals 22 are arranged is absorbed by the relay terminal 28. More specifically, the two relay terminals 28 are disposed on the rear cover 62. The relay terminal 28A of the two relay terminals 28 is connected to the power terminal 22 near the outlet, and the relay terminal 28B is connected to the power terminal 22 far from the outlet. The relay terminals 28A and 28B are arranged in the Y direction at the portion connected to the power terminal 22, and are arranged in the Z direction at the portion connected to the electric wire 30. The relay terminal 28A extends straight along the rear cover 62 between the portion connected to the power terminal 22 and the portion connected to the power line 32. The relay terminal 28B is bent so as to be away from the rear cover 62 from the portion connected to the power terminal 22 toward the portion connected to the power line 32.

One end of the signal wire 34 is inserted into the terminal holding portion 53. The other end portion of the signal wire 34 extends from the through hole and faces the outlet of the grommet 90 while being bent inside the grommet 90. The signal line 34A of the plurality of signal lines 34 is connected to the signal terminal 24 located above the power terminal 22, and the signal line 34B is connected to the signal terminal 24 located below the power terminal 22. The signal line 34A extends from the through hole, passes between the pair of power lines 32, merges with the signal line 34B, and extends in the Y direction.

One end of the ground wire 36 is inserted into the terminal holding portion 53. The ground wire 36 extends from one end portion toward the other end portion from the through hole, and is bent inside the grommet 90 and is directed toward the outlet of the grommet 90 together with the signal wire 34. As described above, since the ground line 36 is harder to bend than the signal line 34, the radius of curvature of the ground line 36 tends to be larger than the radius of curvature of the signal line 34 at a portion where the signal line 34 and the ground line 36 are bent from the X direction toward the Y direction. By pressing the other end portion of the ground wire 36 with the wire pressing portion 57 and the wire cover 70, the ground wire 36 is prevented from excessively bulging in the grommet 90.

The thermistor 42 is housed in the case main body 51 together with the power terminal 22. Therefore, one end of the thermistor wire 44 is also accommodated in the case main body 51. The other end portion of the thermistor wire 44 extends outside the rear cover 62 through the through-hole, and is bent inside the grommet 90 and directed toward the outlet of the grommet 90. The thermistor wire 44 passes through a portion of the through hole into which the terminal-equipped wire 38 is inserted. The thermistor wire 44 extends in the Y direction together with the signal wire 34 while passing between the pair of power wires 32.

The insertion and extraction direction, the direction in which the drain port 93 opens, and the direction in which the power line 32 extends inside the grommet 90 are directions intersecting each other. Here, the insertion and extraction direction is the X direction. The direction in which the drain port 93 opens is the Z direction. The direction in which the power line 32 extends inside the grommet 90 is the Y direction. The insertion and removal directions, the direction in which the drain port 93 opens, and the direction in which the power line 32 extends inside the grommet 90 are orthogonal to each other, but may intersect at angles other than orthogonal.

< drainage Structure of charging connector >

The drain structure of the charging connector 10 will be described.

At the time of charging or the like, there is a possibility that water is immersed into the inside of the case 50 from outside the panel 102 along the hole formed in the case 50. The water is discharged to the outside through the dehydrating hole 64 of the holder 60 and the drain hole 93 of the grommet 90.

The dewatering holes 64 penetrate the rear cover 62 of the holder 60 in the X direction. The dehydration holes 64 are formed in the 2 nd region. The dehydration holes 64 inhibit water from being retained inside the housing 50. The water inside the case 50 reaches the inside of the wire sheath 90 through the dehydrating hole 64 and is discharged to the outside of the wire sheath 90 through the water discharge port 93.

When the drain port 93 is formed, dust or the like may intrude into the interior of the grommet 90 from the drain port 93. The partition wall 66 suppresses adhesion of the dust to the terminals. Specifically, the partition wall 66 partitions the rear end portion of the holder 60 into the 1 st region and the 2 nd region. Region 1 corresponds to the power terminals 22 and the signal terminals 24. The 2 nd region is a region located closer to the drain port 93 than the 1 st region. The distal end portion in the X direction of the partition wall 66 abuts against the inner surface of the grommet 90. Thus, even if dust enters the interior of the grommet 90 from the drain port 93, it is difficult for dust to reach the 1 st area from the 2 nd area.

In addition, a barrier 93a is provided above the drain port 93 in the grommet 90. Thus, dust entering the interior of the grommet 90 from the drain port 93 collides with the barrier 93a, and reduces the air potential. Thus, dust that has entered the interior of the grommet 90 is less likely to reach the 1 st area.

In the rear cover 62, a through hole for a terminal is formed in the 1 st region. Water may also enter from the through hole toward the rear end side of the rear cover 62. The water is guided along the partition wall 66 to the 2 nd region having the drain port 93. Specifically, the portion of the restricting wall 65 disposed below the relay terminal B doubles as the partition wall 66. The partition wall 66 extends in the Y direction from a portion that doubles as the restricting wall 65 and the partition wall 66. The Y-direction end of the partition wall 66 is located below the portion that doubles as the restricting wall 65 and the partition wall 66 in the Z-direction. Thereby, water can be guided along the partition wall 66 to the 2 nd area below.

The portion of the grommet 90 that contacts the distal end portion of the partition wall 66 is formed as a thick wall portion 91a that is thicker than the other portions, and is less likely to deform. By the partition wall 66 being in contact with the thick wall portion 91a, even if the grommet 90 is pressed by the partition wall 66, the contact state of the grommet 90 and the partition wall 66 is easily maintained.

In the X direction, the protruding amount of the partition wall 66 is larger than the protruding amount of the limiting wall 65. Thereby, the partition wall 66 is easily brought into contact with the grommet 90. The thick portion 91a is thicker than the other portion by protruding further toward the inner surface side than the other portion in the X direction. Thus, the thick portion 91a is closer to the partition wall 66 than the other portion in the X direction, and the partition wall 66 is easily brought into contact with the grommet 90.

< temporary holding Structure of holder and wire sheath >

Next, a temporary holding structure of the holder 60 and the grommet 90 will be described with reference to fig. 9. Fig. 9 is a perspective view showing a state in which the grommet 90 is temporarily held by the holder 60.

The outer surface of the end portion in the extending direction of the relay terminal 28 in the restricting wall 65 is provided with a reinforcing rib 67. Here, the outer surfaces of the end portions of the restricting walls 65A, 65B are provided with reinforcing ribs 67 in the restricting wall 65. The restricting walls 65A, 65B extend toward the wire outlet 95 along the Y direction together with the relay terminal 28A. The end portions of the restricting walls 65A, 65B reach the outer edge of the rear cover 62.

The end of the limiting wall 65 becomes a terminal. The reinforcing rib 67 increases the rigidity of the end portion of the restricting wall 65. The reinforcing rib 67 is provided along the entire length of the restricting wall 65 in the X direction. The grommet 90, which covers the middle of the case 50, is temporarily held by the holder 60 by the reinforcing ribs 67. As shown in fig. 9, the grommet 90 is temporarily held by the holder 60 by hooking the reinforcing rib 67 to the inner surface of the case outlet 92.

The outer surface of the reinforcing rib 67 facing the positive side in the Y direction is formed as an inclined surface along the outer edge of the rear cover 62. The inclined surface functions as a guide surface. That is, when the case exit 92 of the grommet 90 moves from the Y-direction positive side, even if the inner surface of the case exit 92 collides with the guide surface, the movement of the grommet 90 is hardly hindered, and the inner surface of the case exit 92 easily passes over the reinforcing rib 67. The outer surface of the reinforcing rib 67 facing the negative side in the Y direction is formed as a surface parallel to the XZ plane. The surface is formed into a hooked noodle. That is, when the grommet 90 passing over the reinforcing rib 67 is about to return in the Y direction, the inner surface of the case exit 92 is caught by the catch surface, and the return of the grommet 90 is restricted.

The restricting wall 65 has a 1 st restricting wall 65A and a 2 nd restricting wall 65B. The 1 st restriction wall 65A and the 2 nd restriction wall 65B face each other across the relay terminal 28A. The reinforcing rib 67 provided to the 1 st restriction wall 65A and the reinforcing rib 67 provided to the 2 nd restriction wall 65B are formed in opposite directions to each other. The 1 st restriction wall 65A and the 2 nd restriction wall 65B are divided into two sides with respect to the center in the up-down direction of the rear cover portion 62. Here, the relay terminal 28A extends in the center of the rear cover 62 in the up-down direction. The 1 st restriction wall 65A is located on one side (above) the relay terminal 28A. The 2 nd restriction wall 65B is located on the other side (lower) of the relay terminal 28A. Reinforcing ribs 67 are provided on the upper surface of the 1 st restricting wall 65A and the lower surface of the 2 nd restricting wall 65B, respectively.

< positioning Structure of Shell and wire sheath >

Next, the positioning structure of the case 50 and the grommet 90 will be described with reference to fig. 10. Fig. 10 is a rear view of the housing 50. In fig. 10, the arm 56 is omitted, and the housing main body 51 is simplified.

The vehicle mounting portion 54 has a flange portion 54a and a plurality of ribs 55. The flange portion 54a protrudes outward from the housing main body 51. The flange portion 54a is formed with a 1 st mounting hole 54b and a 2 nd mounting hole 54c. The 2 nd mounting hole 54c is closer to the housing main body 51 than the 1 st mounting hole 54 b. The plurality of ribs 55 protrude from the flange portion 54a in the insertion and removal direction.

The plurality of ribs 55 have ribs 55a, 55b, 55c, 55d, 55e, 55f. The ribs 55a, 55b connect the housing main body 51 and the flange portion 54a. The rib 55a extends from the housing main body 51 in the Z direction, and the rib 55b extends from the housing main body 51 in the Y direction. The rib 55c connects the peripheral edge portion of the 1 st mounting hole 54b and the housing main body 51. The rib 55d connects the peripheral edge portion of the 2 nd mounting hole 54c and the housing main body 51. The rib 55e connects the plurality of ribs 55a to each other. The rib 55f connects the peripheral edge portion of the 2 nd mounting hole 54c and the flange portion 54a.

The rib 55a is provided in plurality. The protrusion 92c of the grommet 90 is inserted between the two ribs 55a. The two ribs 55a are the 1 st and 2 nd ribs 55a. The rib 55e connecting the rib 55a including two ribs 55a is a connecting rib 55e. The projection 92c is fitted between the 1 st and 2 nd ribs 55a at a position avoiding the connection rib 55e. The rib 55e protrudes from the outer surface of the housing main body 51.

The plurality of ribs 55 are provided so that the rigidity of the portion where the 2 nd mounting hole 54c is formed is higher than the rigidity of the portion where the 1 st mounting hole 54b is formed. Here, the number and thickness of the ribs 55 are different between the portion where the 2 nd mounting hole 54c is formed and the portion where the 1 st mounting hole 54b is formed, and thus the rigidity of the portion where the 2 nd mounting hole 54c is formed is higher than the rigidity of the portion where the 1 st mounting hole 54b is formed.

Specifically, fig. 10 shows a virtual line L that passes through the center of the housing body 51 and separates a portion where the 1 st mounting hole 54b is formed from a portion where the 2 nd mounting hole 54c is formed. In the vehicle mounting portion 54, a portion below the virtual line L is a portion in which the 1 st mounting hole 54b is formed, and a portion above the virtual line L is a portion in which the 2 nd mounting hole 54c is formed.

Regarding how many the ribs 55 are, for example, the number of the ribs 55a, 55b of the upper side portion is greater than the number of the ribs 55a, 55b of the lower side portion. For example, the connecting rib 55e is provided in the upper portion and is not provided in the lower portion. For example, the rib 55f extending from the 2 nd mounting hole 54c is provided at the upper side portion, and is not provided at the lower side portion. The ribs 55a, 55b, 55e, 55f provided in the upper portion but not in the lower portion are reinforcing ribs for improving the rigidity of the upper portion compared to the rigidity of the lower portion.

Regarding the size of the rib 55, the size of the rib 55c is thicker than the size of the rib 55 d. As shown in fig. 10, the rib 55c is thicker than the rib 55 d. In addition, as shown in fig. 3, the height of the rib 55c is greater than the height of the rib 55 d.

< mounting work of wire sheath to housing >

Next, the operation of attaching the grommet 90 to the case 50 will be described with reference to fig. 11 and 12. Fig. 11 is a plan view showing a case where the grommet 90 is attached to the case 50 and the holder 60. Fig. 12 is a plan view showing a case where the grommet 90 is temporarily held by the holder 60.

Several operations of assembling the charging connector 10 are performed before the attachment operation of the grommet 90 to the housing 50. The assembly operation of the charging connector 10 (hereinafter, sometimes referred to as a front operation) performed before the mounting operation of the grommet 90 to the housing 50 can be considered, for example, as a crimping operation of the terminals 24, 26, 28, as an insertion operation of the terminal-attached electric wire 38 of the signal terminal 24 and the terminal-attached electric wire 38 of the ground terminal 26 to the holder 60 and the housing 50, as an insertion operation of the thermistor unit 40 to the holder 60, as an installation operation of the thermistor unit 40 to the power terminal 22, as an insertion operation of the power terminal 22 with the thermistor unit 40 to the housing 50, as an installation operation of the holder 60 to the housing 50, as an installation operation of the terminal-attached electric wire 38 of the relay terminal 28 to the power terminal 22, and as an installation operation of the wire cover 70. In fig. 11, the case is described in which these previous operations are completed and immediately before the attachment operation of the grommet 90 to the case 50 is performed.

It is assumed that part or all of the foregoing operations are performed in a state where the respective wires 30, 44 pass through the grommet 90. That is, one end of each of the wires 30 and 44 extends outside the grommet 90 through the case outlet 92, and the other end extends outside the grommet 90 through the wire outlet 95. In this state, a part or all of the above-described front work is performed on one end portion of each of the electric wires 30, 44 located outside the grommet 90 through the case outlet 92.

In the grommet 90, the case outlet 92 and the wire outlet 95 are opened in directions intersecting each other. Therefore, at least one of the wire sheath 90 and the wires 30 and 44 is bent, so that the wires 30 and 44 penetrate the wire sheath 90. Which of the wires 30, 44 and the grommet 90 is bent is determined by, for example, the rigidity of the wires 30, 44 and the grommet 90. When the rigidity of the electric wires 30, 44 (in particular, the electric power line 32) is higher than the rigidity of the grommet 90, the grommet 90 is bent, and the case outlet 92 and the electric wire outlet 95 are aligned, as shown in fig. 11. In the case where the rigidity of the grommet 90 is higher than the rigidity of the wires 30, 44, the wires 30, 44 may also be bent inside the grommet 90.

From the state shown in fig. 11, the grommet 90 moves toward the case 50 along the electric wires 30, 44. At this time, the operator receives the housing 50, the holder 60, and the wire cover 70 in the grommet 90 from the housing outlet 92 while pulling out the wires 30, 44 from the wire outlet 95. The operation of pulling out the wires 30 and 44 from the wire outlet 95 is an operation of moving the 2 nd protecting portion 94 of the grommet 90 toward the case 50. The operation of storing the housing 50, the holder 60, and the wire cover 70 from the housing outlet 92 into the grommet 90 is an operation of moving the 1 st protection portion 91 of the grommet 90 toward the housing 50. When the operator performs the operation of moving the 1 st protection portion 91, the operator can grasp the flange portion 92b to perform the operation.

Since the wire outlet 95 is closely attached to the wires 30 and 44, the wire outlet 95 is pulled or enlarged with a strong force when the wires 30 and 44 are drawn from the wire outlet 95. In addition, if the case 50, the holder 60, and the wire cover 70 are larger than the case outlet 92, the case outlet 92 is enlarged. Further, since the case outlet 92 and the wire outlet 95 are opened in the direction intersecting each other in the grommet 90, it takes a lot of work to work in a state where the grommet 90 is bent or to change the angle of the grommet 90. In general, the operation of moving the 1 st protector 91 toward the housing 50 and the operation of moving the 2 nd protector 94 toward the housing 50 are performed alternately little by little. That is, after the 1 st protection part 91 is moved, the 2 nd protection part 94 is then moved, and the 1 st protection part 91 is then moved.

When the grommet 90 moves along the wires 30, 44, the arm 56 and the wire cover 70 are accommodated in the grommet 90 from the case outlet 92, and the state shown in fig. 12 is changed. The state of fig. 12 is the state of fig. 9, that is, the state in which the grommet 90 is temporarily held by the holder 60. In this way, the grommet 90 is temporarily held by the holder 60, and thus, other work is easily performed during this period. The other operation is, for example, an operation of moving the 2 nd protector 94 of the grommet 90 to the case 50.

When the grommet 90 is moved further in the Y direction along the electric wires 30, 44 from the state of fig. 12, the rear end portion of the holder 60 is received in the grommet 90 from the case outlet 92. Then, the bending deformation of the grommet 90 is released, and the case exit 92 moves in the X direction, so that the grommet 90 becomes covered on the rear end of the case 50. Then, the strap 98 is fastened around the case exit 92, whereby the attachment of the grommet 90 to the case 50 is completed.

< Effect, etc.)

According to the charging connector 10 configured as described above, when the grommet 90 is mounted, the peripheral edge portion of the case exit 92 in the grommet 90 can be temporarily held by being caught by the reinforcing rib 67 of the wall 65 of the holder 60. Further, when the grommet 90 is attached, the operator can grasp the flange 92b to perform work. Thereby, the attachment work of the grommet 90 becomes easy.

The reinforcing rib 67 provided in the 1 st restricting wall 65A and the reinforcing rib 67 provided in the 2 nd restricting wall 65B are formed in opposite directions to each other. Thus, when the grommet 90 is attached, the peripheral edge portion of the case outlet 92 in the grommet 90 is easily caught by the reinforcing rib 67 of the holder 60.

The distal end portion of the partition wall 66 that partitions the rear end portion of the holder 60 into the 1 st and 2 nd regions is in contact with the inner surface of the grommet 90. Thus, the space in which the terminals 22, 24, 26, 28 are located and the space in which the drain port 93 is located are partitioned by the partition wall 66 and the grommet 90.

The insertion and removal direction, the direction in which the drain port 93 opens, and the direction in which the power line 32 extends inside the grommet 90 are directions intersecting each other. Thus, when the grommet 90 is disposed such that the drain port 93 is directed downward, the electric power line 32 extends in a direction intersecting the downward direction, and thus water is less likely to enter from the electric power line outlet 95.

Further, the projection 92c is fitted between the 1 st and 2 nd ribs 55 a. Thereby, the rotation of the grommet 90 and the case 50 can be suppressed.

The projection 92c is fitted between the 1 st and 2 nd ribs 55a at a position avoiding the connection rib 55 e. Thus, the rotation is stopped by the projection 92c, and the rigidity of the vehicle mounting portion 54 is improved by the coupling rib 55 e.

In addition, since the 2 nd mounting hole 54c is closer to the housing main body 51 than the 1 st mounting hole 54b, the force applied to the 2 nd mounting hole 54c is easily larger than the force applied to the 1 st mounting hole 54 b. By increasing the rigidity of the portion where the plurality of ribs 55 and the 2 nd mounting hole 54c are formed compared with the rigidity of the portion where the 1 st mounting hole 54b is formed, cracking or the like of the vehicle mounting portion 54 is suppressed.

[ additionally remembered ]

Fig. 13 is a rear view showing a charging connector 110 of a modification. In fig. 13, a part of members such as the electric wire 30 are omitted. In the description of the present modification, the same reference numerals are given to the same components as those described above, and the description thereof is omitted.

In the charging connector 110 shown in fig. 13, a reinforcing rib 67 is also provided at an end portion of the partition wall 66. The reinforcing rib 67 of the partition wall 66 is formed in opposition to the reinforcing rib 67 of the 2 nd restricting wall 65B. The holder 160 and the grommet 90 may be temporarily held by the reinforcing ribs 67 of the partition wall 66. In this case, the temporary holding position of the holder 160 and the grommet 90 using the reinforcing rib 67 of the partition wall 66 is closer to the case 50 than the temporary holding position of the holder 160 and the grommet 90 using the reinforcing rib 67 of the 2 nd restricting wall 65B. In this way, by providing a plurality of temporary holding positions, the attachment work of the grommet 90 is easier.

In addition, in the charging connector 110 shown in fig. 13, eight signal terminals 24 are provided. In this example, the ground terminal 26 is omitted. Accordingly, the structure of the ground terminal 26 is omitted in the case 150 and the holder 160.

In addition, the description has been made assuming that the reinforcing rib 67 provided to the 1 st restricting wall 65A and the reinforcing rib 67 provided to the 2 nd restricting wall 65B are formed in opposite directions to each other, but this is not a necessary configuration. For example, the wall provided with the reinforcing rib 67 may be one. The plurality of restricting walls 65 may be provided with reinforcing ribs 67 in the same orientation.

It has been described so far that the distal end portion of the partition wall 66 abuts against the inner surface of the grommet 90, but this is not a necessary configuration. For example, the partition wall 66 may not be provided. In the case where the partition wall 66 is provided, for example, the distal end portion of the partition wall 66 may not contact the inner surface of the grommet 90.

It is assumed that the insertion and removal direction, the direction in which the drain port 93 opens, and the direction in which the power line 32 extends inside the grommet 90 are mutually intersecting, but this is not a necessary configuration. For example, any two directions of the insertion and removal direction, the direction in which the drain port 93 opens, and the direction in which the power line 32 extends inside the grommet 90 may be parallel.

It is assumed that the projection 92c is fitted between the 1 st and 2 nd ribs 55a, but this is not a necessary configuration. For example, the protrusion 93c may not be provided in the grommet 90. It is assumed that the projection 93c is fitted between the 1 st and 2 nd ribs 55a at a position avoiding the connection rib 55e, but this is not a necessary configuration. For example, the coupling rib 55e may not be provided in the vehicle mounting portion 54.

It has been described heretofore that the plurality of ribs 55 are provided so that the rigidity of the portion where the 2 nd attachment hole 54c is formed is higher than the rigidity of the portion where the 1 st attachment hole 54b is formed, but this is not a necessary configuration. For example, the plurality of ribs 55 may be provided in the same manner as in the portion where the 1 st mounting hole 54b is formed and the portion where the 2 nd mounting hole 54c is formed. For example, in the vehicle mounting portion 54, only the flange portion 54a may have sufficient rigidity, and the plurality of ribs 55 may be omitted. For example, the plurality of mounting holes 54b and 54c may be provided at positions symmetrical with respect to the housing main body 51.

The structures described in the above embodiments and modifications can be appropriately combined without contradiction.

Description of the reference numerals

10. Charging connector

20. Terminal for connecting a plurality of terminals

21. Connector terminal

22. Power terminal

23a counterpart side connection portion

23b terminal fixing portion

23c projection

23d thermistor mounting part

24. Signal terminal

25a counterpart side connection portion

25b wire connection part

25c projection

26. Grounding terminal

27a counterpart side connection portion

27b wire connection part

27c projection

28. 28A, 28B relay terminal

29a terminal fixing portion

29b wire connection part

30. Electric wire

31a core wire

31b coating part

32. Power line

34. 34A, 34B signal lines

36. Grounding wire

38. Electric wire with terminal

39. Shrink tube

40. Thermistor unit

42. Thermistor with high temperature resistance

44. Wire for thermistor

50. Shell body

51. Casing body

52. Outer frame

53. Terminal holding part

54. Vehicle mounting portion

54a flange portion

54b 1 st mounting hole

54c No. 2 mounting hole

55. 55a, 55b, 55c, 55d, 55e, 55f ribs

56. Arm

57. Wire pressing part

60. Holder body

61. Terminal pressing part

62. Rear cover part

63. Protruding cylinder part

64. Dewatering hole

65. Limiting wall

65A 1 st restriction wall

65B No. 2 limiting wall

66. Partition wall

67. Reinforcing rib

70. Wire cover

80. Cover unit

82. Cover for a container

84. Hinge unit

86. Locking unit

90. Wire protecting sleeve

91 st protection part 1

91a thick wall portion

92 shell outlet (opening)

92a annular rib

92b flange portion

92c projection

93. Water outlet

93a barrier rib

94 nd protection part

95. Wire outlet

98. Strapping tape

100. Mounting part

102. Panel board

104. Through hole

106. Vehicle body side cover

S screw

Claims (7)

1. A charging connector mounted on a vehicle and fitted to an external charging connector connected to an external power supply of the vehicle, the charging connector being configured to charge a battery provided in the vehicle, the charging connector comprising:

a 1 st power terminal and a 2 nd power terminal for supplying electric power to the battery;

a plurality of signal terminals;

a housing that holds the 1 st power terminal, the 2 nd power terminal, and the plurality of signal terminals, and that is fitted to the external charging connector at a tip portion along a direction in which the external charging connector is inserted and removed;

a holding body which is combined with a rear end portion of the housing and holds the 1 st power terminal, the 2 nd power terminal, and the plurality of signal terminals together with the housing;

a 1 st relay terminal and a 2 nd relay terminal electrically connected to rear end portions of the 1 st power terminal and the 2 nd power terminal, and extending in a direction intersecting the insertion/extraction direction;

A 1 st power line and a 2 nd power line electrically connected to the 1 st power terminal and the 2 nd power terminal via the 1 st relay terminal and the 2 nd relay terminal, respectively;

a plurality of signal lines electrically connected to the plurality of signal terminals, respectively; and

a wire sheath covering the rear end portion of the housing to the intermediate portion of the power line and the signal line,

an opening part covering the rear end part of the shell is arranged on the wire protecting sleeve,

the holder has a wall protruding in the insertion and extraction direction,

the wall has a restricting wall restricting the position of the relay terminal,

the outer surface of the end portion in the extending direction of the relay terminal in the restricting wall is provided with a reinforcing rib,

the grommet has a flange portion provided around the opening portion.

2. The charging connector of claim 1, wherein,

the limiting wall has a 1 st limiting wall and a 2 nd limiting wall opposite to each other across the relay terminal,

the reinforcing rib provided to the 1 st restriction wall and the reinforcing rib provided to the 2 nd restriction wall are formed in opposite directions to each other.

3. The charging connector according to claim 1 or claim 2, wherein,

The wire protecting sleeve is provided with a water outlet opening in the direction crossing the inserting and pulling direction,

the wall has a partition wall that partitions a rear end portion of the holder into a 1 st region corresponding to the 1 st power terminal and the 2 nd power terminal and the plurality of signal terminals, and a 2 nd region located on the drain port side of the 1 st region,

the terminal portion of the partition wall abuts against the inner surface of the grommet.

4. The charging connector according to claim 3, wherein,

the insertion and extraction direction, the direction of the opening of the water outlet and the extending direction of the power line in the wire protecting sleeve are mutually crossed.

5. The charging connector according to any one of claim 1 to claim 4, wherein,

the housing has a housing main body holding the 1 st power terminal and the 2 nd power terminal and the plurality of signal terminals, and a vehicle mounting portion for fastening bolts to the vehicle,

the vehicle mounting portion has a flange portion protruding outward from the housing main body and 1 st and 2 nd ribs protruding from the flange portion in the insertion and removal direction,

the grommet has a protrusion provided outside the opening portion of the case and protruding toward the vehicle-mounted portion,

The protrusion is embedded between the 1 st rib and the 2 nd rib.

6. The charging connector of claim 5, wherein,

the vehicle mounting portion has a connecting rib connecting the 1 st rib and the 2 nd rib to each other,

the protrusion is fitted between the 1 st rib and the 2 nd rib at a position avoiding the connection rib.

7. The charging connector according to any one of claim 1 to claim 6, wherein,

the housing has a housing main body holding the 1 st power terminal and the 2 nd power terminal and the plurality of signal terminals, and a vehicle mounting portion for fastening bolts to the vehicle,

the vehicle mounting portion has a flange portion protruding outward from the housing main body and a plurality of ribs protruding from the flange portion in the insertion and removal direction,

a 1 st mounting hole and a 2 nd mounting hole closer to the housing main body than the 1 st mounting hole are formed in the flange portion,

the plurality of ribs are provided so that the rigidity of the portion where the 2 nd mounting hole is formed is higher than the rigidity of the portion where the 1 st mounting hole is formed.