Connector with electric wire

Abstract

To provide technical features that make it possible to improve drainage of water that has entered a terminal housing portion.SOLUTION: A connector 10 with an electric wire is provided with: a power terminal 20P that is used for supplying power to a battery; a power line 30P that is connected to the power terminal 20P; a housing 50 that includes an opening 51A through which an external charge connector 200 is inserted or removed, and a terminal housing portion 53 in which the power terminal 20P is housed; and a retainer 60 that holds the power terminal 20P together with the housing 50. Fluid communication is provided from the opening 51A of the housing 50 to a space covering the power line 30P of the retainer 60, via the terminal housing portion 53. The retainer 60 includes an opening 64a through which the power line 30P is led out, a wall 64b surrounding the power line 30P, and a drainage portion 65 provided in a part of the wall 64b.SELECTED DRAWING: Figure 4

Description

[Technical field]

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

[0002] Patent Document 1 discloses a vehicle-side connector that is fitted with a charging connector during charging. In the vehicle-side connector described in Patent Document 1, a drain groove is formed on the lower surface of the accommodation area of ​​the cylindrical fitting portion of the terminal fitting in the terminal accommodation chamber, along the axial direction, with the rear end opening toward the drainage space, and the front end of the drain groove is located forward of the rear end of the slit in the cylindrical fitting portion of the terminal fitting. This improves the drainage function of water that has entered the terminal accommodation chamber. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2019-160810 A Summary of the Invention [Problem to be solved by the invention]

[0004] It is desirable to have a higher drainage ability for water that has entered the terminal receiving chamber.

[0005] Therefore, an object of the present invention is to provide a technique that can improve the drainage of water that has entered the terminal accommodating portion. [Means for solving the problem]

[0006] The connector with electric wires of the present disclosure is mounted on a vehicle, mates with an external charging connector of a power supply device outside the vehicle, and is used to charge a battery of the vehicle, the connector having a cylindrical portion into which a terminal of the external charging connector is inserted from one end side, and a wire connection portion provided on the other end side of the cylindrical portion, and includes a power terminal used to supply power to the battery, a power line connected to the wire connection portion of the power terminal, an opening through which the external charging connector is inserted and removed, and a terminal receiving portion that is disposed inside the opening when viewed from the insertion / removal direction of the external charging connector and receives the power terminal. and a retainer attached to the housing on an opposite side to the side where the external charging connector is inserted and removed along the insertion / removal direction, holding the power terminal together with the housing, and covering the power terminal and a portion of the power line, wherein a liquid is flowably communicated from the opening in the housing to a space in the retainer covering the power line via the terminal accommodating portion, and the retainer has an opening through which the power line is drawn out, a wall that surrounds the power line, and a drainage portion provided in a portion of the wall. Effect of the Invention

[0007] According to the present disclosure, it is possible to further improve the drainage of water that has entered the terminal accommodating portion. [Brief description of the drawings]

[0008] [Figure 1] FIG. 1 is a plan view showing a connector with electric wire according to a first embodiment and an assembly mode thereof. FIG. [Diagram 2] FIG. 2 is a rear view showing the wire-attached connector according to the first embodiment. [Diagram 3] FIG. 3 is a cross-sectional view taken along line III-III in FIG. [Figure 4] FIG. 4 is a cross-sectional view taken along line IV-IV in FIG. [Diagram 5] FIG. 5 is a cross-sectional view taken along line VV in FIG. [Figure 6] FIG. 6 is a schematic exploded perspective view of the connector with electric wire. [Figure 7] FIG. 7 is a schematic diagram showing a surface of the housing that fits with the retainer. [Figure 8] FIG. 8 is a schematic diagram showing a surface of the retainer that fits into the housing. [Figure 9] FIG. 9 is a plan view showing an electric wire with a terminal in which a power terminal and a power line are integrated. [Figure 10] FIG. 10 is a perspective view illustrating a process for producing an electric wire with a terminal. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] [Description of the embodiments of the present disclosure] First, the embodiments of the present disclosure will be listed and described.

[0010] The wired connector of the present disclosure is as follows.

[0011] (1) A connector with an electric wire that is mounted on a vehicle, fits with an external charging connector of a power supply device outside the vehicle, and is used to charge a battery of the vehicle, the connector having a cylindrical portion into which a terminal of the external charging connector is inserted from one end side and an electric wire connection portion provided on the other end side of the cylindrical portion, the connector having a power terminal used to supply power to the battery, a power line connected to the electric wire connection portion of the power terminal, an opening through which the external charging connector is inserted and removed, and a terminal accommodating portion that is disposed inside the opening when viewed from the insertion / removal direction of the external charging connector and that accommodates the power terminal. and a retainer attached to a side of the housing opposite to a side into which the external charging connector is inserted and removed along the insertion / removal direction, holding the power terminal together with the housing and covering the power terminal and a portion of the power line, wherein a liquid is allowed to flow from the opening in the housing to a space in the retainer covering the power line via the terminal accommodating portion, and the retainer has an opening through which the power line is drawn out, a wall surrounding the power line, and a drainage portion provided in a portion of the wall. By providing the drainage portion in a portion of the wall surrounding the power line in the retainer, the drainage of water that has entered the terminal accommodating portion is improved.

[0012] (2) In the wire-attached connector of (1), the power terminals may include a first power terminal and a second power terminal, the drainage portion may include a first drainage portion for the first power terminal and a second drainage portion for the second power terminal, and the first drainage portion and the second drainage portion may be formed in directions away from each other and along the arrangement of the first power terminal and the second power terminal, whereby water that has entered the terminal accommodating portion of one of the power terminals is drained through the drainage portion in a direction away from the other power terminal.

[0013] (3) In the wire-attached connector of (2), the drainage portion may be formed to open laterally at a position lower than a center of the power terminal, so that water that has entered the terminal accommodating portion can be easily drained from the drainage portion.

[0014] (4) The connector with electric wire according to any one of (1) to (3), wherein the drainage portion has a diameter equal to or larger than the diameter of the power wire. This allows the power wire to be passed through the drainage portion later into the retainer. This eliminates the need to pass the power wire through the retainer before storing it in the housing, making it easier to manufacture the connector with electric wire.

[0015] (5) The wire-equipped connector according to any one of (1) to (4) further includes a signal terminal held in a signal terminal accommodating portion of the housing and a signal wire connected to the signal terminal, the retainer holds the signal terminal together with the housing and has a signal terminal pressing portion covering the signal terminal and a part of the signal wire, the signal terminal pressing portion has a slit that is equal to or larger than the diameter of the signal wire and reaches a side surface of the retainer, and the housing may include a protrusion that fits into the slit. This allows the signal wire connected to the signal terminal to be passed through the slit formed in the signal terminal pressing portion and into the retainer. Furthermore, the protrusion and the slit function as a guide when the retainer is attached to the housing.

[0016] (6) In any one of the wire-equipped connectors (1) to (5), the connector further includes a ground terminal accommodated in a ground terminal accommodating portion of the housing and a ground wire connected to the ground terminal, the retainer holds the ground terminal together with the housing and has a ground terminal pressing portion covering the ground terminal and a part of the ground wire, and the ground terminal pressing portion may have a slit formed therein that is equal to or larger than the diameter of the ground wire and reaches an upper side surface, whereby the ground wire connected to the ground terminal can be passed through the slit formed in the ground terminal pressing portion to the rear of the retainer.

[0017] (7) In the wire-attached connector according to any one of (1) to (6), a waterproofing member may be further provided to cover a connection between the power terminal and the power line. This prevents water from getting on the connection, and the waterproofing between the housing and the retainer may be low.

[0018] [Details of the embodiment of the present disclosure] Specific examples of the wired connector of the present disclosure will be described below with reference to the drawings. Note that the present disclosure is not limited to these examples, but is defined by the claims, and is intended to include all modifications within the meaning and scope of the claims.

[0019] [Embodiment 1] The wire-attached connector according to the first embodiment will be described below.

[0020] <About the vehicle> First, a vehicle in which a wired connector is mounted will be described.

[0021] The vehicle on which the wired connector is mounted is an electric vehicle equipped with a battery and a motor. The vehicle runs when the motor is driven by power from the battery. The vehicle may be an electric vehicle equipped only with a motor as a drive source, or may be a hybrid vehicle equipped with a motor and an engine. The battery in the vehicle is charged by power supplied from an external power source. The wired connector is used to charge the vehicle's battery. The wired connector is engageable with an external charging connector 200 (see FIG. 4). This electrically connects the wired connector to the external charging connector 200. The external charging connector 200 is a connector for a charging cable extending from a power supply device outside the vehicle.

[0022] Generally, there are two charging methods for charging a battery in a vehicle: normal charging and rapid charging. Rapid charging allows charging in a shorter time than normal charging by passing a larger current than normal charging. For normal charging, a household power source or an equivalent external power source is assumed to be used. For rapid charging, a dedicated power source such as a charging station is assumed to be used. Below, a wired connector compatible with normal charging is described. The following wired connectors are also applicable to wired connectors compatible with rapid charging, unless there is a contradiction.

[0023] <Connectors with electric wires in vehicles> An assembly mode of the electric wire-equipped connector in a vehicle will be described with reference to Fig. 1. Fig. 1 is a plan view showing the electric wire-equipped connector 10 according to the first embodiment and its assembly mode.

[0024] The wire-attached connector 10 is attached to a mounting part 100 provided on the outer surface of the body of a vehicle, for example. An example of the mounting part 100 is shown in Fig. 1. The mounting part 100 is formed, for example, in such a manner that a part of a panel constituting the body is recessed toward the inside of the vehicle. A through hole 104 is formed in a bottom panel 102 of the mounting part 100.

[0025] A connection portion with the external charging connector 200 is provided on the front side of the wired connector 10. The connection portion includes a portion into which the external charging connector 200 is inserted and electrically connected. A portion of the wired connector 10, including the connection portion, passes through the through hole 104 and is exposed to the outside of the panel 102. Another portion of the wired connector 10 is disposed inside the panel 102. The mounting portion 100 may be provided with an openable and closable vehicle body cover or the like. When the vehicle body cover is closed, the vehicle body cover covers the opening of the panel 102. When the vehicle body cover is open, the wired connector 10 is exposed and the wired connector 10 can be accessed from the outside. When the external charging connector 200 is fitted and connected to the wired connector 10, charging is performed on a battery 230 provided in the vehicle.

[0026] In the present disclosure, as shown in FIG. 1, among the X-direction, Y-direction, and Z-direction which are orthogonal to each other, the X-direction is a direction parallel to the direction in which the wired connector 10 passes through the through hole 104 of the panel 102. The wired connector 10 and the external charging connector 200 are connected in the X-direction. The Y-direction is a direction in which a pair of power terminals 20P, which will be described later, are arranged side by side. The Z-direction is a direction perpendicular to both the X-direction and the Y-direction. For example, when the wired connector 10 is provided on a side surface of a vehicle, the X-direction is considered to be the width direction of the vehicle, the Y-direction is considered to be the front-rear direction of the vehicle, and the Z-direction is considered to be the vertical direction. Also, for example, when the wired connector 10 is provided on the front or rear surface of a vehicle, the X-direction is considered to be the front-rear direction of the vehicle, the Y-direction is considered to be the width direction of the vehicle, and the Z-direction is considered to be the vertical direction.

[0027] <Overall composition> The overall configuration of the connector with electric wire 10 will be described with reference to Fig. 2 to Fig. 6 in addition to Fig. 1. Fig. 2 is a rear view showing the connector with electric wire 10 according to the first embodiment. Fig. 3 is a cross-sectional view taken along line III-III in Fig. 2. Fig. 4 is a cross-sectional view taken along line IV-IV in Fig. 2. Fig. 5 is a cross-sectional view taken along line VV in Fig. 2. Fig. 6 is a schematic exploded perspective view of the connector with electric wire 10. In Figs. 1 and 2, the exterior member 80 is drawn by virtual lines. Also, the electric wire 30 is omitted in Fig. 6.

[0028] The connector with electric wire 10 comprises a terminal 20, an electric wire 30, a thermistor unit 40, a housing 50, a retainer 60, a cover 70, and a grommet 80.

[0029] <Terminal> The terminals 20 are accommodated in a housing 50. The terminals 20 are connected to terminals 210 of the external charging connector 200. The number and type of the terminals 20 are appropriately set depending on the standard of the wire-attached connector 10, etc. In this embodiment, two power terminals 20P, one earth terminal 20E, and two signal terminals 20S are provided as the terminals 20. The power terminals 20P are used to supply power to the battery 230. The earth terminal 20E is used for grounding. The signal terminals 20S are used, for example, to control charging.

[0030] As shown in Figs. 9 and 10 , each terminal 20 has a tubular portion 21, an electric wire connection portion 22, and a protrusion 24. The tubular portion 21 is a portion that is electrically connected to a terminal 210 of the external charging connector 200. The terminal 210 of the external charging connector 200 is inserted from one end side of the tubular portion 21. The electric wire connection portion 22 is provided on the other end side of the tubular portion 21. The electric wire 30 corresponding to each terminal 20 is connected to the electric wire connection portion 22. Here, the electric wire connection portion 22 is a crimping portion having a crimping piece 22a. In each terminal 20, the crimping piece 22a is crimped to an end portion of the corresponding electric wire 30. The protrusion 24 is provided in an intermediate portion of each terminal 20. The protrusion 24 is a portion that is pressed by a retainer 60. The protruding portion 24 protrudes from the connecting portion 23 that connects the tubular portion 21 and the electric wire connection portion 22 in a direction intersecting the extending direction of the connecting portion 23. The protruding portion 24 has a first protruding piece 24a that protrudes in the Y direction from the connecting portion 23 and a second protruding piece 24b that protrudes in the Z direction from a tip of the first protruding piece 24a. Each terminal 20 is formed by pressing (bending) a flat metal plate.

[0031] A plurality of types of terminals 20 having different sizes are used as the plurality of terminals 20. In this example, the power terminals 20P are larger in the radial direction and the insertion / removal direction than the signal terminals 20S. The ground terminals 20E are the same size as the power terminals 20P.

[0032] <Electric wire> One end of each electric wire 30 is connected to the terminal 20. The other end of each electric wire 30 extends from the grommet 80 to the outside. When the connector 10 with electric wires is mounted on a vehicle, the other end of each electric wire 30 is connected to another device mounted on the vehicle. Such device is appropriately set according to the type of the electric wire 30, and is assumed to be, for example, a battery 230, an electronic control unit (ECU), etc. The number and type of the electric wires 30 correspond to the number and type of the terminals 20. In the example of this embodiment, two power lines 30P, one earth line 30E, and two signal lines 30S are provided as the electric wires 30. One end of the power line 30P is connected to the power terminal 20P. The other end of the power line 30P is connected to, for example, the battery 230 of the vehicle. The battery 230 of the vehicle and a power supply device outside the vehicle are connected via the power terminal 20P and the power line 30P. One end of the earth line 30E is connected to the earth terminal 20E. The other end of the ground wire 30E is connected to, for example, a ground of the vehicle. One end of the signal wire 30S is connected to a signal terminal 20S. The other end of the signal wire 30S is connected to, for example, an ECU of the vehicle. For example, the ECU of the vehicle and a power supply device outside the vehicle are communicatively connected via the signal terminal 20S and the signal wire 30S.

[0033] Each electric wire 30 is a coated electric wire. The coated electric wire has a core wire 31 and a coating 32 that covers the core wire 31 (see FIG. 9). The core wire 31 is formed, for example, by twisting a plurality of metallic wires. The core wire 31 may be a single-core wire. The coating 32 is formed, for example, by extruding an insulating resin around the core wire 31. As the plurality of electric wires 30, a plurality of types of electric wires 30 having different thicknesses are used. In this example, the power wire 30P is thicker than the signal wire 30S. The earth wire 30E has the same thickness as the power wire 30P.

[0034] One end of the electric wire 30 is inserted into the retainer 60. The other end of the electric wire 30 extends from the retainer 60, is bent in the grommet 80, and heads toward an electric wire outlet 84 of the grommet 80, as shown in Fig. 1. The multiple electric wires 30 extend collectively from one electric wire outlet 84 to the outside of the grommet 80.

[0035] <Thermistor unit> The thermistor unit 40 measures the temperature of the power circuit. By using the thermistor unit 40 to monitor the temperature of the power circuit, it is possible to prevent the temperature of the power circuit from becoming too high. The thermistor unit 40 has a thermistor 42 and a thermistor wire 44 (see FIG. 4). In this example, the thermistor 42 is attached to each of the pair of power lines 30P, and the temperature of each of the pair of power lines 30P is measured. One end of the thermistor wire 44 is connected to the thermistor 42. The other end of the thermistor wire 44 extends to the outside from the grommet 80 in the same manner as the other end of the electric wire 30. When the wired connector 10 is mounted on a vehicle, the other end of the thermistor wire 44 is connected to, for example, an ECU. The thermistor wire 44 is thinner than the power line 30P.

[0036] <Housing> The housing 50 holds the terminal 20 in a predetermined position (a position where the terminal 20 can be connected to a terminal 210 of the external charging connector 200). The housing 50 includes a housing main body 51 and a vehicle attachment portion 58.

[0037] The terminal 20 is accommodated in the housing main body 51. The housing main body 51 has an outer frame portion 52 and a plurality of terminal accommodating portions 53. Each of the plurality of terminal accommodating portions 53 is formed in a cylindrical shape capable of accommodating a corresponding terminal 20. The outer frame portion 52 is formed in a cylindrical shape surrounding the plurality of terminal accommodating portions 53. At an intermediate portion of the terminal accommodating portion 53, the plurality of terminal accommodating portions 53 and the outer frame portion 52 are connected by a flat-plate-shaped connecting portion. An opening 51A through which the external charging connector 200 is inserted and removed is formed in a portion of the outer frame portion 52 facing toward the outside of the vehicle beyond the connecting portion (see FIG. 3). The terminal accommodating portion 53 is located inside the opening 51A when viewed along the insertion and removal direction of the external charging connector 200. A lid 70 is attached to the front of the housing main body 51. A retainer 60 is attached to the rear of the housing main body 51.

[0038] The terminal accommodating portion 53 has a power terminal accommodating portion 53P, an earth terminal accommodating portion 53E, and a signal terminal accommodating portion 53S. The power terminal accommodating portion 53P accommodates a power terminal 20P. The earth terminal accommodating portion 53E accommodates an earth terminal 20E. The signal terminal accommodating portion 53S accommodates a signal terminal 20S.

[0039] The vehicle mounting part 58 is a part for mounting the wired connector 10 to the mounting part 100. The vehicle mounting part 58 is formed in a plate shape protruding around the outer frame part 52 in the middle part of the housing body 51. The vehicle mounting part 58 is attached to the mounting part 100 by, for example, screws.

[0040] <Retainer> The retainer 60 is attached to the housing 50 on the side opposite to the side where the external charging connector 200 is inserted and removed in the insertion / removal direction, i.e., the side opposite to the opening 51A. The retainer 60 prevents the terminal 20 from coming off the housing 50. The retainer 60 holds the terminal 20 together with the housing 50. The retainer 60 covers the terminal 20 and a portion of the electric wire 30. The retainer 60 has a terminal pressing portion 61.

[0041] The terminal pressing portion 61 presses the rear of the terminal 20 accommodated in the housing 50 (see FIG. 8). This prevents the terminal 20 from falling out rearward from the housing 50. The terminal pressing portion 61 includes a rear cover portion 62 and a plurality of protruding tubular portions 63.

[0042] As shown in FIG. 4, the rear cover portion 62 closes the rear opening of the outer frame portion 52. A plurality of through holes are formed in the rear cover portion 62. The plurality of through holes are formed at positions corresponding to the respective terminal accommodating portions 53. Each electric wire 30 passes through each through hole. An annular groove 62g (see FIG. 8) is formed in the surface of the rear cover portion 62 facing the housing 50. The annular groove 62g is formed slightly on the inner periphery side of the outer periphery of the rear cover portion 62. The tip end of the outer frame portion 52 fits into the annular groove 62g.

[0043] The multiple protruding tubular portions 63 protrude forward (toward the housing 50) from the rear cover portion 62. The multiple protruding tubular portions 63 are formed at positions corresponding to the respective terminal accommodating portions 53. Each protruding tubular portion 63 communicates with each through hole. The tip of each protruding tubular portion 63 is inserted into the corresponding terminal accommodating portion 53 to press the corresponding protruding portion 24 from behind. The protruding tubular portion 63 corresponding to the power terminal 20P is the power terminal pressing portion 61P. The protruding tubular portion 63 corresponding to the earth terminal 20E is the earth terminal pressing portion 61E. The protruding tubular portion 63 corresponding to the signal terminal 20S is the signal terminal pressing portion 61S. The peripheral surface of the protruding tubular portion 63 is a wall surrounding each electric wire 30.

[0044] In this example, the power terminal 20P and the earth terminal 20E are larger than the signal terminal 20S. Therefore, when viewed from the insertion / removal direction, the power terminal pressing portion 61P and the earth terminal pressing portion 61E are larger than the signal terminal pressing portion 61S. Also, in this example, the thermistor unit 40 is attached to the power line 30P, whereas the thermistor unit 40 is not attached to the earth line 30E. Therefore, when viewed from the insertion / removal direction, the area surrounded by the power terminal pressing portion 61P is larger than the area surrounded by the earth terminal pressing portion 61E. Here, the thermistor unit 40 is attached downward along the Z direction relative to the power line 30P, so the power terminal pressing portion 61P extends downward more than the earth terminal pressing portion 61E.

[0045] The protruding tubular portion 63 corresponding to the power terminal 20P and the protruding tubular portion 63 corresponding to the earth terminal 20E protrude rearward along the insertion / removal direction from the rear cover portion 62. The positions of the tip of the power line 30P and the tip of the earth line 30E are regulated via these protruding tubular portions 63. The power line 30P is drawn out from an opening 64a at the rear of the protruding tubular portion 63 corresponding to the power terminal 20P.

[0046] 2 and 6, a drainage portion 65 is provided on the wall 64b of the power terminal pressing portion 61P. The drainage portion 65 opens in a direction intersecting with the opening 64a. Here, the drainage portion 65 is formed so as to open laterally at a position lower than the center of the power terminal 20P when viewed from the insertion / removal direction. The center of the power terminal 20P when viewed from the insertion / removal direction is, for example, the center of the tube portion 21.

[0047] A slit 63S1 is formed in the wall of the signal terminal pressing portion 61S. The width of the slit 63S1 is equal to or larger than the diameter of the signal wire 30S. The slit 63S1 reaches the side surface of the retainer 60. An opening of the slit 63S1 is blocked by the outer frame portion 52 of the housing 50 in front of the rear cover portion 62. This prevents the signal wire 30S from moving through the slit 63S1 when the wire-attached connector 10 is assembled.

[0048] A slit 63S2 is formed in the earth terminal pressing portion 61E. The width of the slit 63S2 is equal to or larger than the diameter of the earth wire 30E. The slit 63S2 reaches the upper side surface of the retainer 60. An opening of the slit 63S2 is closed by the outer frame portion 52 of the housing 50 in front of the rear cover portion 62. This prevents the earth wire 30E from moving through the slit 63S2 when the wire-equipped connector 10 is assembled.

[0049] The housing 50 and the retainer 60 are provided with locking portions. In this example, the locking portions include a locking projection 55 formed on the housing 50 and a locking piece 67 formed on the retainer 60. When the locking piece 67 is locked to the locking projection 55, the retainer 60 is joined to the rear end of the housing 50 on the opposite side to the opening 51A. This allows the retainer 60 to be maintained together with the housing 50 in a state in which it holds the terminals 20.

[0050] 1, the housing 50 includes a protrusion 54 that fits into the slit 63S1 of the signal terminal pressing portion 61S. The protrusion 54 is provided on the outer surface of the outer frame portion 52 so as to protrude outward from the outer frame portion 52. The locking projection 55 is also provided on the outer surface of the outer frame portion 52 so as to protrude outward from the outer frame portion 52. The protrusion 54 is provided along the circumferential direction of the outer frame portion 52, separate from the locking projection 55. Two protrusions 54 are provided so as to fit into the slits 63S1 of the two signal terminal pressing portions 61S, respectively.

[0051] <Lid> Lid 70 is attached to housing 50 in an openable and closable manner. When lid 70 is open, opening 51A is exposed. This allows external charging connector 200 to be inserted into opening 51A. When lid 70 is closed, opening 51A is blocked.

[0052] <Grommet> The grommet 80 covers the retainer 60 and the terminals 20 together from the side opposite to the opening 51A with respect to the housing 50. The grommet 80 covers the rear end of the housing main body 51 and the retainer 60. The grommet 80 is an elastic member. The grommet 80 is made of an elastomer such as EPDM. The grommet 80 is a part that is integrally molded, for example, by a mold. The grommet 80 is an example of an exterior member 80 that covers the retainer 60 and the terminals 20 together. The exterior member 80 does not need to be an elastic member, and may be made of a hard resin, a metal, or the like. In other words, the exterior member 80 may be a protector or a grommet.

[0053] The grommet 80 is formed with a housing outlet 81, a drainage hole 83, and an electric wire outlet 84. The housing outlet 81 is formed in a cylindrical shape extending in the X direction. The housing outlet 81 covers the rear end of the housing 50. The front end of the housing body 51 extends to the outside of the grommet 80 through the housing outlet 81. The drainage hole 83 is an opening for draining water that has entered the inside of the wired connector 10 to the outside. It is assumed that such water enters from the front end of the housing body 51 when the lid 70 is opened, for example. The drainage hole 83 is formed in a cylindrical shape extending in the Z direction. The other end of the electric wire 30 extends to the outside of the grommet 80 through the electric wire outlet 84. Here, there is one electric wire outlet 84, through which the power line 30P, the signal line 30S, the earth wire 30E, and the thermistor electric wire 44 are passed together. A plurality of electric wire outlets 84 may be provided, and a plurality of electric wires 30 may be passed through the plurality of electric wire outlets 84 in a divided manner.

[0054] As shown in Figs. 3 and 4, a cable tie 90 is attached to the outer surface of the housing outlet 81. The grommet 80 is attached to the housing 50 by the cable tie 90. An annular rib 82 is provided on the inner surface of the housing outlet 81. The annular rib 82 is provided around the entire circumference of the inner surface of the housing outlet 81. The annular rib 82 is in close contact with the outer surface of the housing main body 51 (the outer surface of the outer frame portion 52) around the entire circumference. The housing outlet 81 is fastened by the cable tie 90, so that the annular rib 82 is compressed between the inner surface of the housing outlet 81 and the outer surface of the housing main body 51. This improves the watertightness between the outer surface of the housing main body 51 and the inner surface of the housing outlet 81.

[0055] As shown in FIG. 6, the outer surface of the outer frame portion 52 of the housing 50 is provided with locking protrusions 56 that engage with the grommet 80 along the insertion / removal direction. The locking protrusions 56 are provided at multiple locations spaced apart along the circumferential direction of the outer frame portion 52. The multiple locking protrusions 56 may include a locking protrusion 56 that is provided integrally with the protrusion 54. The locking protrusion 56 is provided at the same position as the protrusion 54 along the circumferential direction of the outer frame portion 52. The locking protrusion 56 is located forward of the protrusion 54, and the protrusion 54 is continuous to the locking protrusion 56. The multiple locking protrusions 56 may include a locking protrusion 56 that is provided integrally with the locking protrusion 55. The locking protrusion 56 is provided at the same position as the locking protrusion 55 along the circumferential direction of the outer frame portion 52. The locking protrusion 55 is located behind the locking protrusion 56, and the locking protrusion 56 is continuous to the locking protrusion 55. The multiple locking protrusions 56 may include a locking protrusion 56 provided at a position separate from the protrusion 54 and the locking protrusion 55 along the circumferential direction of the outer frame portion 52.

[0056] Here, the insertion / removal direction, the direction in which electric wire outlet 84 opens, and the direction in which drain outlet 83 opens intersect with each other. Here, the insertion / removal direction is the X direction. The direction in which electric wire outlet 84 opens is the Y direction. The direction in which drain outlet 83 opens is the Z direction. The insertion / removal direction, the direction in which electric wire outlet 84 opens, and the direction in which drain outlet 83 opens are perpendicular to each other, but may intersect at an angle other than perpendicular.

[0057] 3 and 4, the actuator 92 is shown by a phantom line. The actuator 92 is a mechanism for preventing the wired connector 10 and the external charging connector 200 from coming loose when the wired connector 10 and the external charging connector 200 are connected to each other. The actuator 92 is fixed to the vehicle mounting portion 58 that extends outside the housing main body 51 in the housing 50 by screwing or the like. The main body of the actuator 92 is located on the vehicle inner side of the vehicle mounting portion 58, and the actuator 92 has a protrusion 92a that penetrates the vehicle mounting portion 58 and can be exposed to the outside of the vehicle together with the opening 51A. The protrusion 92a is covered by the lid 70 together with the opening 51A when the lid 70 is closed. The protrusion 92a is exposed to the outside of the vehicle together with the opening 51A when the lid 70 is open.

[0058] <Terminal position relationship> Further referring to Figures 7 and 8, the positional relationship between the housing 50 and the terminals 20 held by the retainer 60 will be described. Figure 7 is a schematic diagram showing a surface of the housing 50 that fits into the retainer 60. Figure 8 is a schematic diagram showing a surface of the retainer 60 that fits into the housing 50. Note that in Figures 7 and 8, some of the terminals 20 are drawn with imaginary lines.

[0059] The wire-attached connector 10 includes a pair of power terminals 20P. For example, the pair of power terminals 20P are arranged to line up in the horizontal direction when viewed along the insertion / removal direction of the external charging connector 200. Here, the pair of power terminals 20P are arranged to line up in the Y direction. In Figs. 7 and 8, only the power terminal 20P located on the left side of the drawings is shown among the pair of power terminals 20P.

[0060] The pair of power terminals 20P are an example of a first power terminal and a second power terminal. In the following description, one of the pair of power terminals 20P may be distinguished as the first power terminal 20P and the other as the second power terminal 20P, as necessary. Each part of the first power terminal 20P and the second power terminal 20P may also be distinguished by adding "first" or "second" to the prefix. The power line 30P may also be distinguished by adding "first" or "second" to the prefix depending on the first power terminal 20P or the second power terminal 20P to which it is connected.

[0061] Here, the ground terminal 20E is disposed between the pair of power terminals 20P. The pair of signal terminals 20S are disposed on the upper side along a direction (Z direction) perpendicular to the direction (Y direction) in which the pair of power terminals 20P are arranged. The direction in which the pair of signal terminals 20S are arranged is parallel to the direction (Y direction) in which the pair of power terminals 20P are arranged. In the direction (Y direction) in which the pair of power terminals 20P are arranged, one signal terminal 20S is located between the first power terminal 20P and the ground terminal 20E, and the other signal terminal 20S is located between the second power terminal 20P and the ground terminal 20E. The terminal accommodating portion 53 that accommodates each terminal 20 and the terminal pressing portion 61 that presses each terminal 20 are also provided at positions corresponding to each of the terminals 20.

[0062] <Wire with terminal> The terminal 20 and the electric wire 30 are fixed and integrated while being electrically connected to each other by crimping or the like during the manufacturing process of the connector with electric wire 10. Such an integrated electric wire 30 and terminal 20 is sometimes called an electric wire with terminal. In this example, an electric wire with terminal in which a power line 30P and a power terminal 20P are integrated, an electric wire with terminal in which a signal line 30S and a signal terminal 20S are integrated, and an electric wire with terminal in which a ground line 30E and a ground terminal 20E are integrated are provided.

[0063] An example of an electric wire with terminal will be described in more detail with reference to Fig. 9 and Fig. 10. Fig. 9 is a plan view showing an electric wire with terminal 34 in which a power terminal 20P and a power line 30P are integrated. Fig. 10 is a perspective view illustrating a process of manufacturing the electric wire with terminal 34.

[0064] As shown in Fig. 9, the electric wire with terminal 34 may be provided with a waterproofing member 36. The waterproofing member 36 covers the connection portion between the terminal 20 and the electric wire 30. The waterproofing member 36 covers, for example, from a portion of the terminal 20 forward of the portion to which the electric wire 30 is connected to a portion of the electric wire 30 where the coating 32 is provided. This prevents water from splashing on the connection portion between the electric wire 30 and the terminal 20 and prevents water from penetrating into the coating 32. Here, the waterproofing member 36 is a shrink tube 36. The waterproofing member 36 may be a resin such as an adhesive.

[0065] The shrink tube 36 is, for example, a heat shrink tube 36 that shrinks when heated. The shrink tube 36 is placed over the terminal-attached electric wire 34 in a large-diameter state before being heated. Thereafter, when the shrink tube 36 is heated and shrinks, it takes a shape corresponding to the shape of the connection portion, so that it can be tightly attached to the connection portion. For example, the tip of the shrink tube 36 before heating may be fitted into the recess 24c formed in the first protruding piece 24a of the protruding portion 24 and abutted against the first protruding piece 24a for positioning. The tip of the shrink tube 36 after shrinkage may remain fitted into the recess 24c formed in the first protruding piece 24a of the protruding portion 24. The tip of the shrink tube 36 after shrinkage may be removed rearward from the recess 24c.

[0066] For example, a hot melt adhesive may be provided on the inner surface of the shrink tube 36. This allows the hot melt adhesive to fill the gap between the shrink tube 36 and the terminal 20 and the gap between the shrink tube 36 and the electric wire 30, improving the waterproofing of the shrink tube 36. The hot melt adhesive may not be provided on the inner surface of the shrink tube 36. In the electric wire with terminal 34, the shrink tube 36 may not be provided at the connection portion between the electric wire 30 and the terminal 20, and may be exposed.

[0067] The thermistor 42 is located outside the coating 32 at a position slightly away from the connection between the power line 30P and the power terminal 20P. The thermistor 42 is also located inside the shrink tube 36 together with the power line 30P. One end of the thermistor wire 44, which is connected to the thermistor 42, is located inside the shrink tube 36. The other end of the thermistor wire 44 extends out from the end of the shrink tube 36. The other end of the thermistor wire 44 extends out of the grommet 80 together with the power line 30P, the earth wire 30E, and the signal wire 30S.

[0068] The thermistor 42 may be positioned in the covering 32 by a temporary fixing member such as an adhesive tape 46 before the shrink tube 36 is attached. This increases the accuracy of the positional relationship of the thermistor 42 with respect to the terminal-attached electric wire 34. In this case, the temporary fixing member such as the adhesive tape 46 is also located inside the shrink tube 36.

[0069] The waterproofing member 36 may also be provided in the electric wire with terminal 34 in which the ground terminal 20E and the ground wire 30E are integrated, and in the electric wire with terminal 34 in which the signal terminal 20S and the signal wire 30S are integrated. In this case, in the electric wire with terminal 34 in which the ground terminal 20E and the ground wire 30E are integrated, and in the electric wire with terminal 34 in which the signal terminal 20S and the signal wire 30S are integrated, the shrink tube 36 may cover the connection portion without wrapping the thermistor 42.

[0070] <Dustproof structure> The wire-attached connector 10 is provided with a dustproof structure that prevents dust and the like that has entered through the drainage hole 83 from adhering to the terminals 20. Here, the dustproof structure includes a portion where the partition wall 66 of the retainer 60 and the receiving portion 85 of the grommet 80 come into contact with each other.

[0071] 2, the partition wall 66 protrudes rearward from the rear cover portion 62 along the X direction. The partition wall 66 divides the rear surface of the retainer 60 into a first region where the opening of the terminal pressing portion 61 is present, and a second region located closer to the drainage outlet 83 than the first region. The tip of the partition wall 66 contacts the inner surface of the receiving portion 85 of the grommet 80. This prevents dust and other foreign matter that enters from under the drainage outlet 83 from passing between the partition wall 66 and the receiving portion 85, making it difficult for the dust and other foreign matter to reach the terminals 20. The protruding tube portion 63 protruding rearward from the rear cover portion 62 along the insertion / removal direction also prevents dust and other foreign matter from reaching the terminals 20.

[0072] Partition wall 66 is inclined from one side to the other side in a direction intersecting the protruding direction (X direction). Here, the side located farther from electric wire outlet 84 along the Y direction is referred to as one side, and the side located closer to electric wire outlet 84 is referred to as the other side. Here, it is inclined downward from one side to the other side. The tip of partition wall 66 is in contact with receiving portion 85 over the entire length from one side to the other side.

[0073] As shown in Figures 3 and 4, the receiving portion 85 is thickened partially in the grommet 80. The thickened portion is in contact with the tip surface of the partition wall 66. This makes it easier to maintain contact between the partition wall 66 and the receiving portion 85. The receiving portion 85 is provided in a portion that corresponds to the entire partition wall 66 from one side to the other side. The receiving portion 85 protrudes toward the retainer 60 beyond a portion of the grommet 80 that is located above the receiving portion 85. The upper edge of the receiving portion 85 in the Z direction is inclined in accordance with the inclined portion of the partition wall 66.

[0074] The space including the first region and the space including the second region are not completely separated by the grommet 80 and the partition wall 66. Inside the grommet 80, the space including the first region and the space including the second region are not independent spaces, but communicate with each other through a communication part such as a gap between the partition wall 66 and the inner surface of the grommet 80. The communication part functions as a drainage path.

[0075] <Drainage section> The drainage section 65 will now be described in more detail.

[0076] 2, the drainage portion 65 has two walls 65a, 65b arranged at a distance from each other behind the rear cover portion 62. The wall 64b is also partially open in the circumferential direction to accommodate the drainage portion 65. The wall 65a extends from one end of the wall 64b in the circumferential direction toward the side surface of the retainer 60. The wall 65b extends from the other end of the wall 64b in the circumferential direction toward the side surface of the retainer 60.

[0077] Here, the two walls 65a, 65b are parallel to each other. The two walls 65a, 65b extend from the protruding tube portion 63 toward the side surface of the retainer 60 while maintaining approximately the same distance between them. The two walls 65a, 65b may extend from the protruding tube portion 63 toward the side surface of the retainer 60 so that the distance between them becomes wider or narrower.

[0078] Here, the two walls 65a, 65b are lined up along the Z direction. Of the two walls 65a, 65b, the one located on the upper side along the Z direction is referred to as the upper wall 65a, and the other located on the upper side is referred to as the lower wall 65b. Here, the centers of the upper wall 65a and the lower wall 65b are located lower along the Z direction than the center of the tube portion 21. Here, the upper wall 65a is located at the same position as the center of the tube portion 21 or lower along the Z direction than that.

[0079] As shown in FIG. 2, the upper surface of the lower wall portion 65b is flush with the upper surface of the portion of the protruding tube portion 63 that is located lowest along the Z direction. This makes it easier for water to flow from the protruding tube portion 63 to the drainage portion 65. Here, the upper surface of the lower wall portion 65b extends along the horizontal direction. The lower wall portion 65b and the wall portion at the bottom of the protruding tube portion 63 form a single wall portion that extends horizontally. As shown in FIG. 4, the single wall portion is located above the receiving portion 85 of the grommet 80. The upper surface of the lower wall portion 65b may be inclined downward toward the side surface of the retainer 60.

[0080] 8, the size of the drainage portion 65 in the up-down direction is smaller than the width of the space in the up-down direction of the protruding tubular portion 63 (power terminal pressing portion 61P) corresponding to the power terminal 20P. This allows the wall of the protruding tubular portion 63 above the drainage portion 65 to cover the sides of the power terminal 20P and the power line 30P connected to the power terminal 20P.

[0081] Here, as shown in FIG. 8, the size of the drainage portion 65 in the vertical direction is equal to or larger than the diameter of the power line 30P. The distance between the upper wall portion 65a and the lower wall portion 65b is equal to or larger than the power line 30P. Here, the size of the drainage portion 65 is larger than the power line 30P. This allows the power line 30P and the thermistor unit 40 attached to the power line 30P to pass through the drainage portion 65 easily even after being integrated with each other via the shrink tube 36. The size of the drainage portion 65 may be large enough to allow the passage of a portion where the power line 30P and the thermistor wire 44 are aligned in the Z direction. The size of the drainage portion 65 may be large enough to allow the passage of a portion where the power line 30P and thermistor 42 are aligned in the Z direction.

[0082] The portion of the drainage portion 65 in front of the rear cover portion 62 is blocked by the outer frame portion 52 of the housing 50. This prevents the power line 30P from moving through the drainage portion 65 when the connector 10 is in the wired state. Furthermore, walls 65a and 65b are provided in the portion of the drainage portion 65 behind the rear cover portion 62. This prevents the power line 30P from moving through the drainage portion 65 when the connector 10 is in the wired state. Here, one of the drainage portions 65 (the drainage portion on the left side in FIG. 2) opens in the same direction as the direction in which the power line 30P faces the electric wire outlet 84. Even in this case, the drainage portion 65 has the walls 65a and 65b, so that the power line 30P can be easily drawn out to the opening 64a of the protruding tube portion 63.

[0083] Here, a first drainage portion 65 for the first power terminal 20P and a second drainage portion 65 for the second power terminal 20P are provided as the drainage portions 65. The first drainage portion 65 and the second drainage portion 65 are formed in directions away from each other and in a direction along the arrangement of the first power terminal 20P and the second power terminal 20P. Here, the earth terminal 20E is located between the first power terminal 20P and the second power terminal 20P, and the first drainage portion 65 and the second drainage portion 65 each open on the side opposite to the side where the earth terminal 20E is located.

[0084] Here, as shown in Fig. 8, the size of drainage portion 65 in the up-down direction is larger than the width of slit 63S2 in earth terminal pressing portion 61E. The width of slit 63S2 is set to be approximately the same as that of earth wire 30E. Also, as shown in Fig. 6, in earth terminal pressing portion 61E, no wall portion like walls 65a, 65b in drainage portion 65 is provided between protruding tube portion 63 and the side surface of retainer 60 behind rear cover portion 62.

[0085] The drainage portion 65 and the slits 63S1, 63S2 may be provided to avoid a position of the protruding tube portion 63 that presses the protruding portion 24. In the power terminal 20P, the second protruding piece 24b protrudes upward. This makes it easy to make the drainage portion 65 located below the protruding portion 24 large.

[0086] <Drainage route> In the wired connector 10, a liquid such as water (hereinafter referred to as water) is allowed to flow from the opening 51A in the housing 50 to the internal space of the grommet 80. Water that has entered through the opening 51A flows toward the outside of the grommet 80 along a drainage path in the wired connector 10. The drainage path in the wired connector 10 will be described in more detail. Arrows A1, A2, A3, and A4 in Figs. 3 to 5 indicate some of the drainage paths in the wired connector 10.

[0087] 3 is a drainage path through drainage hole 51h formed below opening 51A of housing 50. Drainage path A1 is a drainage path that does not pass through terminal accommodating portion 53. Water that has entered through drainage hole 51h of housing 50 passes through passage 57 provided below terminal accommodating portion 53 and drainage hole 62h of retainer 60, and is drained from drainage outlet 83 of grommet 80. Drainage hole 62h of retainer 60 is located closer to drainage outlet 83 than partition wall 66.

[0088] 3 and 5 is a drainage path through the ground terminal accommodating portion 53E. In the drainage path A2, water flows downward from the rear opening of the ground terminal pressing portion 61E. Then, the water flows laterally over the receiving portion 85 and the partition wall 66, and is then discharged from the drainage port 83 of the grommet 80 through the inner surface of the cylindrical portion of the grommet 80.

[0089] 4 and 5 is a drainage path via the power terminal accommodating portion 53P. In the drainage path A3, like the drainage path A2, water flows downward from the rear opening of the power terminal pressing portion 61P. Then, the water flows laterally over the receiving portion 85 and the partition wall 66, and is then discharged from the drainage port 83 of the grommet 80 through the inner surface of the cylindrical portion of the grommet 80.

[0090] 5 is a drainage path via the power terminal accommodating portion 53P, and is a drainage path different from the drainage path A3. In the drainage path A4, water flows laterally from the drainage portion 65 in the power terminal pressing portion 61P and is discharged from the drainage port 83 of the grommet 80. In the drainage path A4, the water does not flow over the receiving portion 85 and the partition wall 66, but flows toward the drainage port 83 through the inner surface of the cylindrical portion of the grommet 80.

[0091] In the drainage path through the power terminal accommodating portion 53P, water can flow along any path between the drainage path A3 and the drainage path A4. In the wired connector 10, water is allowed to flow from the opening 51A in the housing 50 to the space in the retainer 60 that covers the power line 30P via the terminal accommodating portion 53. Water that has entered through the opening 51A flows toward the outside of the grommet 80 along the drainage path A3, the drainage path A4, or a drainage path therebetween.

[0092] Although the drainage path through the signal terminal accommodating portion 53S is not shown, it is basically the same as the drainage paths A2 and A3. That is, water flows downward from the rear opening of the signal terminal pressing portion 61S. Then, after flowing laterally on the receiving portion 85 and the partition wall 66, the water is discharged from the drainage port 83 of the grommet 80 through the inner surface of the cylindrical portion of the grommet 80. However, since the signal terminal pressing portion 61S is shorter rearward than the power terminal pressing portion 61P and the earth terminal pressing portion 61E, the water flowing downward from the rear opening of the signal terminal pressing portion 61S flows rearward on the power terminal pressing portion 61P and the earth terminal pressing portion 61E, and then flows onto the receiving portion 85 and the partition wall 66.

[0093] <Effects, etc.> According to the wired connector 10 configured as above, the retainer 60 has the drainage portion 65 provided in a part of the wall surrounding the power line 30P, thereby improving the drainage of water that has infiltrated into the terminal accommodating portion 53. Specifically, the drainage path A3 corresponding to the opening 64a and the drainage path A4 corresponding to the drainage portion 65 are provided as drainage paths for water that has infiltrated into the power terminal accommodating portion 53P, thereby improving the drainage.

[0094] The first drainage portion 65 and the second drainage portion 65 are formed in directions away from each other and in a direction along the arrangement of the first power terminal 20P and the second power terminal 20P. As a result, water that has entered the terminal accommodating portion 53 of one power terminal 20P is drained through the drainage portion 65 in a direction away from the other power terminal 20P.

[0095] In addition, the drainage portion 65 is formed to open laterally at a position lower than the center of the power terminal 20P. This makes it easy for water that has entered the terminal accommodating portion 53 to be drained from the drainage portion 65. Furthermore, above the drainage portion 65, the wall of the protruding tube portion 63 can cover the sides of the power terminal 20P and the power line 30P. This makes it difficult for the power line 30P connected to the power terminal 20P to come out of the drainage portion 65 when the power terminal 20P is held by the housing 50 and the retainer 60.

[0096] In addition, the size of the drainage portion 65 is equal to or larger than the diameter of the power line 30P. This allows the power line 30P to be passed through the retainer 60 later through the drainage portion 65. This eliminates the need to pass the power line 30P through the retainer 60 in advance before storing the power line 30P in the housing 50, facilitating the manufacture of the wire-attached connector 10. When the power terminal 20P and the power line 30P are connected to form the terminal-attached electric wire 34, the power line 30P connected to the power terminal 20P is passed through the drainage portion 65, so that the power line 30P can be in a state of penetrating the protruding tube portion 63 of the retainer 60.

[0097] Further, the signal terminal pressing portion 61S is formed with a slit 63S1 that is equal to or larger than the diameter of the signal wire 30S and reaches the side surface of the retainer 60. This allows the signal wire 30S connected to the signal terminal 20S to be passed through the slit 63S1 formed in the signal terminal pressing portion 61S. Furthermore, the housing 50 includes a protrusion 54 that fits into the slit 63S1. This allows the protrusion 54 and the slit 63S1 to function as a guide when the retainer 60 is attached to the housing 50. In other words, when the retainer 60 is attached to the housing 50, by passing the protrusion 54 through the slit 63S1, the retainer 60 can be attached to the housing 50 while being maintained in a predetermined attachment orientation around the axis.

[0098] Further, a slit 63S2 is formed in the earth terminal pressing portion 61E, the diameter of which is equal to or larger than that of the earth wire 30E and which reaches the upper side surface. This allows the earth wire 30E connected to the earth terminal 20E to be passed through the retainer 60 at the rear through the slit 63S2 formed in the earth terminal pressing portion 61E.

[0099] The wire-attached connector 10 further includes a waterproof member 36 that covers the connection between the power terminal 20P and the power line 30P. This prevents water from getting onto the connection, and prevents problems from occurring even if the waterproofing between the housing 50 and the retainer 60 is poor.

[0100] [Note] Although the pair of drainage portions 65 have been described above as being formed in a direction away from each other and in a direction along the arrangement of the pair of power terminals 20P, this is not a required configuration. For example, the pair of drainage portions 65 may be formed in a direction different from the direction away from each other.

[0101] Although the drainage portion 65 has been described so far as being formed to open laterally at a position lower than the center of the power terminal 20P, this is not a required configuration. For example, the drainage portion 65 may open laterally at the center of the power terminal 20P or above it.

[0102] Further, although the size of the drainage portion 65 has been described so far as being equal to or larger than the diameter of the power line 30P, this is not an essential configuration. For example, the drainage portion 65 may be smaller than the diameter of the power line 30P, so that the rear passage of the power line 30P through the drainage portion 65 is not possible. Also, for example, the power terminal pressing portion 61P may be provided with the drainage portion 65 and a slit for rear passage of the power line 30P separately.

[0103] In addition, although it has been described above that the signal terminal pressing portion 61S has the slit 63S1 formed therein, which is equal to or larger than the diameter of the signal wire 30S and reaches the side surface of the retainer 60, this is not an essential configuration. The slit 63S1 does not have to be formed in the signal terminal pressing portion 61S. Even if the slit 63S1 is formed, the protrusion 54 that fits into the slit 63S1 does not have to be provided in the housing 50.

[0104] In addition, although it has been described above that the ground terminal pressing portion 61E has the slit 63S2 formed therein, which is the same diameter as or larger than the diameter of the ground wire 30E and reaches the upper side surface, this is not an essential configuration. The ground terminal pressing portion 61E does not necessarily have to have the slit 63S2 formed therein.

[0105] Further, although the wire-attached connector 10 has been described so far as including the waterproofing member 36 that covers the connection portion between the power terminal 20P and the power line 30P, this is not an essential configuration. The waterproofing member 36 does not necessarily have to be provided.

[0106] The configurations described in the above embodiments and modifications can be combined as appropriate as long as they are not mutually inconsistent. [Explanation of symbols]

[0107] 10 Wire-attached connector 20 Terminals 20P power terminal 20S Signal Terminal 20E Earth terminal 21 Cylinder part 22 Wire connection 22a Crimping piece 23 Connecting part 24 Protrusion 24a 1st protruding piece 24b 2nd protruding piece 24c Recess 30 Electric wire 30P power line 30S signal line 30E Earth wire 31 Core Wire 32 Covering 34 Wire with terminal 36 Shrink tube (water-stopping material) 40 Thermistor unit 42 Thermistor 44 Thermistor wire 46 Adhesive Tape 50 Housing 51 Housing body 51A opening 51h Drain hole 52 Outer frame 53 Terminal housing 53P power terminal housing 53S Signal terminal housing 53E Earth terminal housing 54 Convex 55 Locking protrusion 56 Locking protrusion 57 Passage 58 Vehicle mounting part 60 Retainer 61 Terminal holder 61P Power terminal holder 61S Signal terminal holder 61E Earth terminal holder 62 Rear cover part 62g Circular groove 62h Drain hole 63 Projecting cylinder part 63S1, 63S2 Slit 64a aperture 64b Wall 65 Drainage section 65a Upper wall 65b Lower wall 66 Partition Wall 67 Locking piece 70 Lid 80 Grommet (exterior part) 81 Housing outlet 82 Circular rib 83 Drain 84 Wire outlet 85 Receiving 90 Cable Ties 92 Actuator 92a protrusion 100 Mounting part Panel 102 104 Through hole 200 External charging connector 210 Terminal 230 Battery

Claims

1. A connector with electric wires that is mounted on a vehicle, engages with an external charging connector of a power supply device outside the vehicle, and is used to charge a battery of the vehicle, a power terminal including a cylindrical portion into which a terminal of the external charging connector is inserted from one end side and an electric wire connection portion provided on the other end side of the cylindrical portion, the power terminal being used to supply power to the battery; a power line connected to the wire connection portion of the power terminal; a housing including an opening into which the external charging connector is inserted and removed, and a terminal accommodating portion that is disposed inside the opening when viewed from a direction in which the external charging connector is inserted and removed and that accommodates the power terminal; a retainer that is attached to the housing on a side opposite to a side where the external charging connector is inserted and removed along the insertion / removal direction, the retainer holding the power terminal together with the housing, and covering the power terminal and a portion of the power line; Equipped with a liquid is allowed to flow from the opening of the housing to a space in the retainer that covers the power line through the terminal accommodating portion; the retainer has an opening through which the power line is drawn out, a wall surrounding the power line, and a drainage portion provided in a part of the wall, The drainage portion is equal to or larger than a diameter of the power line, a size of the drainage portion in a direction perpendicular to a direction extending from the opening as viewed from the insertion / removal direction is smaller than a size of the opening.

2. The connector with electric wire according to claim 1, As the power terminals, a first power terminal and a second power terminal are provided, the drainage portion includes a first drainage portion for the first power terminal and a second drainage portion for the second power terminal; the first drainage portion and the second drainage portion are formed in a direction away from each other and in a direction along an arrangement of the first power terminal and the second power terminal.

3. The connector with electric wire according to claim 2, The drainage portion is formed so as to open laterally at a position lower than the center of the power terminal.

4. The connector with electric wire according to any one of claims 1 to 3, The housing further includes a signal terminal held in a signal terminal accommodating portion of the housing, and a signal line connected to the signal terminal, the retainer holds the signal terminal together with the housing and has a signal terminal pressing portion that covers the signal terminal and a portion of the signal line, The signal terminal pressing portion has a slit that is equal to or larger than the diameter of the signal wire and reaches a side surface of the retainer. The housing includes a protrusion that fits into the slit.

5. The connector with electric wire according to any one of claims 1 to 4, The housing further includes a ground terminal accommodated in a ground terminal accommodating portion, and a ground wire connected to the ground terminal. the retainer holds the ground terminal together with the housing and has a ground terminal pressing portion that covers the ground terminal and a portion of the ground wire, The earth terminal pressing portion has a slit formed therein that is the same diameter as or larger than the diameter of the earth wire and that reaches the upper side surface.

6. The connector with electric wire according to any one of claims 1 to 5, The wire-attached connector further includes a waterproofing member that covers a connection portion between the power terminal and the power line.

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