JP7567711B2 - Charging connector - Google Patents

Description

This disclosure relates to a charging connector.

Patent Document 1 discloses a charging inlet that includes a cylindrical portion, a housing that is fitted to the base end of the cylindrical portion, and an end housing that is fitted to the housing. A plurality of terminals that are electrically connected to terminals of an external connector are provided inside the cylindrical portion. The terminals are then electrically connected to a battery via wiring that passes through the housing and the end housing.

JP 2020-83130 A

Power lines are used as the wiring connecting the terminals and the battery. Power lines are thicker than signal lines, so the bending radius tends to be larger. For this reason, if the power lines are to be bent inside the end housing according to the direction in which the wiring is pulled out, it is necessary to secure space within the end housing large enough to accommodate the bent power lines.

Here, there is a demand to miniaturize the charging inlet.

Therefore, the purpose of this disclosure is to reduce the size of the charging connector.

The charging connector disclosed herein is a charging connector that is mounted on a vehicle, engages with an external charging connector that is connected to an external power source of the vehicle, and is used to charge a battery provided in the vehicle, and includes a housing having a first power terminal and a second power terminal used to supply power to the battery, a signal terminal, an opening through which the external charging connector is inserted and removed, and a terminal holding portion that is located inside the opening when viewed along the insertion and removal direction of the external charging connector and holds the first power terminal, the second power terminal, and the signal terminal, a retainer that is combined with an end of the housing opposite the opening and holds the first power terminal, the second power terminal, and the signal terminal together with the housing, a first relay terminal that is fastened and fixed to the end of the first power terminal opposite the opening and extends in a direction intersecting the insertion and removal direction, and a terminal holding portion that is fastened and fixed to the end of the second power terminal opposite the opening, The charging connector includes a second relay terminal extending in a direction intersecting the insertion/removal direction, a first power line electrically connected to the first power terminal via the first relay terminal, and a second power line electrically connected to the second power terminal via the second relay terminal, the first relay terminal includes a first through hole penetrating along the insertion/removal direction and a first rotation stop protrusion partially protruding around the first through hole in a direction intersecting the insertion/removal direction, and has a first mounting portion attached to the first power terminal, the second relay terminal includes a second through hole penetrating along the insertion/removal direction and a second rotation stop protrusion partially protruding around the second through hole in a direction intersecting the insertion/removal direction, and has a second mounting portion attached to the second power terminal, and the retainer has a first protrusion and a second protrusion protruding in the insertion/removal direction and contacting the first rotation stop protrusion or the second rotation stop protrusion, respectively, to restrict rotation of the first relay terminal or the second relay terminal.

This disclosure makes it possible to miniaturize the charging connector.

FIG. 1 is a plan view showing a charging connector according to a first embodiment and an assembly manner thereof. FIG. FIG. 2 is a perspective view showing the charging connector according to the first embodiment. FIG. 3 is an exploded perspective view showing the charging connector according to the first embodiment. FIG. 4 is a front view showing the charging connector according to the first embodiment. FIG. 5 is a cross-sectional view taken along line VV in FIG. FIG. 6 is a diagram illustrating the power terminals and the electric wires with terminals, and further the housing positions thereof. FIG. 7 is a diagram illustrating the electric wire path in the charging connector. FIG. 8 is an explanatory diagram showing a power terminal. FIG. 9 is a perspective view showing the retainer and the relay terminal. FIG. 10 is a rear view showing the relationship between the wall of the retainer and the first and second relay terminals. FIG. 11 is a rear view showing a charging connector according to a modified example.

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

The charging connector disclosed herein is as follows:

(1) A charging connector that is mounted on a vehicle, engages with an external charging connector that is connected to an external power source of the vehicle, and is used to charge a battery provided in the vehicle, the charging connector comprising: a housing having a first power terminal and a second power terminal used to supply power to the battery, a signal terminal, an opening through which the external charging connector is inserted and removed, and a terminal holding portion that is located inside the opening when viewed along the insertion and removal direction of the external charging connector and holds the first power terminal, the second power terminal, and the signal terminal; a retainer that is combined with an end of the housing opposite the opening and holds the first power terminal, the second power terminal, and the signal terminal together with the housing; a first relay terminal that is fastened and fixed to the end of the first power terminal opposite the opening and extends in a direction intersecting the insertion and removal direction; and a second relay terminal that is fastened and fixed to the end of the second power terminal opposite the opening and extends in a direction intersecting the insertion and removal direction. The charging connector includes a second relay terminal extending in a direction intersecting the insertion/removal direction, a first power line electrically connected to the first power terminal via the first relay terminal, and a second power line electrically connected to the second power terminal via the second relay terminal, the first relay terminal includes a first through hole penetrating along the insertion/removal direction and a first rotation stop protrusion partially protruding around the first through hole in a direction intersecting the insertion/removal direction, and has a first mounting portion attached to the first power terminal, the second relay terminal includes a second through hole penetrating along the insertion/removal direction and a second rotation stop protrusion partially protruding around the second through hole in a direction intersecting the insertion/removal direction, and has a second mounting portion attached to the second power terminal, and the retainer has a first protrusion and a second protrusion protruding in the insertion/removal direction and contacting the first rotation stop protrusion or the second rotation stop protrusion, respectively, to restrict rotation of the first relay terminal or the second relay terminal.

According to this charging connector, the first relay terminal and the second relay terminal extend in a direction intersecting the insertion/removal direction. The first power line and the second power line extend in a direction intersecting the insertion/removal direction by being connected to the first relay terminal or the second relay terminal. Therefore, it is not necessary to secure a space for accommodating the bent power line in the charging connector. This allows the charging connector to be made smaller. In addition, the first rotation stop convex portion of the first relay terminal and the second rotation stop convex portion of the second relay terminal contact the first convex portion and the second convex portion, thereby preventing the first relay terminal and the second relay terminal from rotating. This stabilizes the direction in which the first power line and the second power line extend. Since the first rotation stop convex portion and the second rotation stop convex portion are portions that partially protrude around the through hole, the surface area of the first relay terminal and the second relay terminal can be increased. This allows heat dissipation to be promoted in the first relay terminal and the second relay terminal.

(2) In the charging connector of (1), the first rotation stop protrusion and the second rotation stop protrusion may protrude in a direction different from a portion connecting a portion fastened to the first power terminal or the second power terminal around the first through hole or the second through hole to a portion to which the first power line or the second power line is connected. This effectively increases the surface area of the first relay terminal and the second relay terminal, and further promotes heat dissipation in the first relay terminal and the second relay terminal.

(3) In the charging connector of (1) or (2), the first protrusion may surround the first mounting portion, and the second protrusion may surround the second mounting portion. This allows each mounting portion to be separated from the surroundings by the first protrusion and the second protrusion.

(4) A charging connector according to any one of (1) to (3), wherein the signal terminal further includes a first signal terminal and a second signal terminal, the first signal terminal being arranged on one side of an arrangement line connecting a central axis of the first power terminal and a central axis of the second power terminal when viewed along the insertion/removal direction, and the second signal terminal being arranged on the other side of the arrangement line when viewed along the insertion/removal direction, the first relay terminal including a first power line connection portion to which the first power line is connected, the second relay terminal including a second power line connection portion to which the second power line is connected, the first power line connection portion and the second power line connection portion being arranged at positions that allow the first power line and the second power line to extend to one side along the arrangement line, and the first relay terminal may be provided between the first mounting portion and the first power line connection portion and have a bypass portion that extends to bypass the first signal terminal. This allows the first relay terminal to be arranged while avoiding interference with a signal line extending from the first signal terminal.

(5) In the charging connector according to any one of (1) to (4), the first and second protrusions may be formed to separate the first or second relay terminal from the signal terminal when viewed along the insertion/removal direction. This allows the first or second relay terminal to be separated from the signal terminal by the rotation-preventing protrusion.

(6) The charging connector according to any one of (1) to (5) may further include an exterior member that collectively covers the retainer, the first power terminal, the second power terminal, and the signal terminal from the side opposite the opening, and the first power line and the second power line may extend within the exterior member along a straight line that extends in a direction intersecting the insertion/removal direction. In this case, it is not necessary to secure space within the exterior member to accommodate the bent power lines. This allows the charging connector to be made smaller.

(7) The charging connector of (6) may include a plurality of the signal terminals and a plurality of signal lines connected to the plurality of signal terminals, and the plurality of signal lines may be bent and bundled together within the exterior member. This allows the first signal line and the second signal line to be directed in the exterior member and bundled together before being drawn out.

(8) In the charging connector of (6) or (7), the exterior member may be an elastic member. This allows the portion of the charging connector opposite the opening to be easily covered entirely with the elastic exterior member. In addition, the elastic exterior member can improve the waterproofing of the portion of the charging connector opposite the opening.

(9) In a charging connector according to any one of (1) to (8), a portion of one of the first relay terminal and the second relay terminal may include a plate-shaped portion along the insertion/removal direction, and a portion of the other of the first relay terminal and the second relay terminal may include a plate-shaped portion along a direction intersecting the insertion/removal direction. In this way, by arranging the plate-shaped portion of the first relay terminal and the plate-shaped portion of the second relay terminal along different directions, they can be arranged in a compact space, which contributes to miniaturization of the charging connector.

(10) In the charging connector according to any one of (1) to (9), a water-stopping section may be provided at each of the connection portion between the first power line and the first relay terminal and the connection portion between the second power line and the second relay terminal. This can prevent water from entering each connection portion.

(11) In the charging connector of (10), the water-tight portion may be a heat-shrink tube. This allows each connection part to be easily water-tight by the heat-shrink tube.

[Details of the embodiment of the present disclosure]
Specific examples of the charging 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.

[Embodiment 1]
Hereinafter, the charging connector according to the first embodiment will be described.

<About the vehicle>
First, a vehicle in which the charging connector is installed will be described.

The vehicle in which the charging connector is incorporated is an electric vehicle equipped with a battery and a motor. The vehicle runs by driving the motor with power from the battery. The vehicle may be an electric vehicle equipped only with a motor as a drive source, or a hybrid vehicle equipped with a motor and an engine. The battery in the vehicle is charged with power supplied from an external power source. The charging connector is configured so that an external charging connector 200 (see Figure 5) can be inserted and electrically connected. The external charging connector is a connector for a charging cable extending from an external power source.

Generally, there are two types of charging for a battery in a vehicle: normal charging and rapid charging. Rapid charging allows charging to be completed 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. The charging connector of the present disclosure is described as a charging connector compatible with rapid charging.

<Charging connector in vehicle>
An assembly mode of the charging connector in a vehicle will be described with reference to Fig. 1. Fig. 1 is a plan view showing a charging connector 10 according to a first embodiment and its assembly mode.

The charging connector 10 is attached to a mounting portion 100 provided on the outer surface of the body of the vehicle, for example. FIG. 1 shows an example of the mounting portion 100. The mounting portion 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 panel 102 at the bottom 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 into which the external charging connector is inserted and electrically connected. A portion of the charging 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 charging connector 10 is disposed inside the vehicle relative to the panel 102. Typically, a vehicle body side cover 106 is provided on the mounting portion 100. The vehicle body side cover 106 is attached so as to be openable and closable by a hinge or the like. When the vehicle body side cover 106 is closed, the vehicle body side cover 106 covers the opening of the panel 102. When the vehicle body side cover 106 is open, the charging connector 10 is exposed and the charging connector 10 can be accessed from the outside. When the external charging connector 200 is mated and connected to this charging connector 10, charging is performed on a battery 230 provided in the vehicle.

In this disclosure, as shown in FIG. 1, of the mutually orthogonal X, Y, and Z directions, the X direction is parallel to the direction in which the charging connector 10 passes through the through hole 104 of the panel 102. The charging connector 10 and the external charging connector are connected in the X direction. The Y direction is the direction in which a pair of power terminals 22, which will be described later, are aligned. The Z direction is a direction perpendicular to both the X and Y directions. For example, when the charging connector 10 is provided on the side of the vehicle, the X direction is considered to be the width direction of the vehicle, the Y direction is the front-rear direction of the vehicle, and the Z direction is considered to be the vertical direction. Also, for example, when the charging connector 10 is provided on the front or rear surface of the vehicle, the X direction is considered to be the front-rear direction of the vehicle, the Y direction is the width direction of the vehicle, and the Z direction is considered to be the vertical direction.

<Overall composition>
The overall configuration of the charging connector 10 will be described with reference to Figs. 2 to 7 in addition to Fig. 1. Fig. 2 is a perspective view showing the charging connector 10 according to the first embodiment. Fig. 3 is an exploded perspective view showing the charging connector 10 according to the first embodiment. Fig. 4 is a front view showing the charging connector 10 according to the first embodiment. Fig. 5 is a cross-sectional view taken along line V-V in Fig. 4. Fig. 6 is a diagram illustrating a terminal-attached electric wire 38 and its housing position. Fig. 7 is a diagram illustrating the path of the electric wire 30 in the charging connector 10. Note that the electric wire 30 is omitted in Fig. 3. Also, some of the terminal-attached electric wires 38 are omitted in Fig. 6.

The charging connector 10 includes a terminal 20, an electric wire 30, a thermistor unit 40, a housing 50, a retainer 60, an electric wire cover 70, a lid unit 80, and a grommet 90.

<Terminals>
The terminals 20 include connector terminals 21 and relay terminals 28 (see FIGS. 3 to 6 ). The connector terminals 21 are accommodated in a housing 50. The connector terminals 21 are connected to terminals of a mating connector. The number and type of the connector terminals 21 are appropriately set depending on the standard of the charging connector 10, etc. 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. The relay terminals 28 are interposed between the power terminals 22 and the electric wires 30. The relay terminals 28 are provided in the same number as the power terminals 22 (here, two). Each terminal 20 is formed by pressing (bending) a metal plate.

The power terminal 22 is a terminal used to supply power to the battery 230. The power terminal 22 has a cylindrical portion 23a, a fastening plate portion 23b, and a protruding portion 23c. The power terminal 22 further has a thermistor mounting portion 23d.

The cylindrical portion 23a is electrically connected to the power supply terminal of the external charging connector. The fastening plate portion 23b is the portion to which the relay terminal 28 is fastened. The power line 32 is electrically connected to the power terminal 22 via the relay terminal 28.

The signal terminal 24 has a mating connection portion 25a, an electric wire connection portion 25b, and a protrusion 25c. The ground terminal 26 has a mating connection portion 27a, an electric wire connection portion 27b, and a protrusion 27c. The electric wire connection portions 25b, 27b are portions to which electric wires are connected, here, crimping portions. The signal terminal 24 and the ground terminal 26 are crimped to the ends of the corresponding electric wires 30 by the electric wire connection portions 25b, 27b. As a result, the signal terminal 24 and the ground terminal 26 are fixed while being electrically connected to the corresponding electric wires 30.

Protrusions 23c, 25c, and 27c are provided at the middle of each connector terminal 21. Protrusions 23c, 25c, and 27c are the portions that are held down by the retainer 60. The thermistor mounting portion 23d is the portion where the thermistor unit 40 is mounted.

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 90 to the outside. When the charging connector 10 is mounted on the vehicle, the other end 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 is assumed to be, for example, a battery, an electronic control unit (ECU), etc. The number and type of the electric wires 30 correspond to the number and type of the connector terminals 21. In this embodiment, the electric wire 30 includes two power lines 32, six signal lines 34, and one ground line 36 (see Figures 2 and 7). 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 line 36 is connected to the ground terminal 26. One end of the thermistor electric wire 44 is connected to the thermistor 42.

Each electric wire 30 is a coated electric wire. The coated electric wire has a core wire 31a and a coating 31b that covers the core wire 31a. The core wire 31a is formed, for example, by twisting multiple metal wires. The core wire 31a may be a single-core wire. The coating 31b is formed, for example, by extruding an insulating resin around the core wire 31a. As the multiple electric wires 30, multiple types of electric wires 30 with different thicknesses are used. The thickness of the electric wire 30 is set according to the allowable current value, etc. Normally, in order to increase the allowable current value, it is necessary to increase the conductor cross-sectional area, and the thickness of the electric wire 30 becomes thicker accordingly. In addition, the thickness of the electric wire 30 is usually correlated with the difficulty of bending the electric wire 30, and as the electric wire 30 becomes thicker, the electric wire 30 becomes harder to bend. For example, when an easy-to-bend electric wire and a hard-to-bend electric wire are bent at the same angle, the radius of curvature of the hard-to-bend electric wire will be larger than the radius of curvature of the easy-to-bend electric wire, and therefore a larger installation space will be 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. The cross-sectional area of the conductor of the power line 32 is, for example, 40 mm2 or more. The cross-sectional area of the conductor of the power line 32 is, for example, 120 mm2 or less. 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.

<Wire with terminal>
The terminal 20 and the electric wire 30 are fixed and integrated while being electrically connected to each other by crimping during the manufacturing process of the charging connector 10. Such an integrated electric wire 30 and terminal 20 may be called a terminal-attached electric wire 38. In this example, a terminal-attached electric wire 38 in which a power line 32 and a relay terminal 28 are integrated, a terminal-attached electric wire 38 in which a signal line 34 and a signal terminal 24 are integrated, and a terminal-attached electric wire 38 in which a ground line 36 and a ground terminal 26 are integrated are provided.

As shown in FIG. 6, a water-stopping portion may be provided at the connection portion between the electric wire 30 and the terminal 20 of the terminal-attached electric wire 38. The water-stopping portion may be a heat-shrinkable tube 39 that is heat-shrunk while covering the connection portion. This prevents water from splashing on the connection portion between the electric wire 30 and the terminal 20 and from penetrating into the coating 31b. The heat-shrinkable tube 39 covers, for example, a portion of the terminal 20 forward of the portion to which the electric wire 30 is connected to the portion of the electric wire 30 where the coating 31b is located. The heat-shrinkable tube 39 is placed over the terminal-attached electric wire 38 in a large diameter state before being heated. After that, when the heat-shrinkable tube 39 is heated and shrunk, 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, 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, improving the waterproofing of the heat shrink tube 39. The inner surface of the heat shrink tube 39 does not need to be provided with hot melt adhesive. In the electric wire with terminal 38, the heat shrink tube 39 may not be provided at the connection portion between the electric wire 30 and the terminal 20, and may be exposed. In the electric wire with terminal 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 heat shrink tube 39. A configuration in which the resin covers the connection portion and hardens can also function as a waterproofing portion. In FIG. 6, a heat shrink tube 39 that covers the connection portion between the power line connection portions 29Ab and 29Bb of the relay terminal 28 and the power line 32 is shown.

<Thermistor unit>
The thermistor unit 40 measures the temperature of the power terminal 22. In the charging connector 10 for rapid charging, a large current flows through the power terminal 22 for supplying power for charging the battery, and therefore the temperature rise of the power terminal 22 is large accordingly. By monitoring the temperature of the power terminal 22 using the thermistor unit 40, it is possible to prevent the temperature of the power terminal 22 from becoming too high. The thermistor unit 40 has a thermistor 42 and a thermistor wire 44 (see FIG. 6 ). In this example, the 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 of the thermistor wire 44 extends to the outside from the grommet 90 in the same manner as the other end of the wire 30. When the charging connector 10 is mounted on the vehicle, the other end of the thermistor wire 44 is connected to, for example, an ECU or the like. The thermistor wire 44 is thinner than the power wire 32 and the ground wire 36. Therefore, the thermistor wire 44 is easier to bend than the power wire 32 and the ground wire 36.

<Housing>
Housing 50 holds connector terminal 21 in a predetermined position (a position where connector terminal 21 of the external charging connector can be connected) Housing 50 includes a housing main body 51, a vehicle attachment portion 54, and a wire pressing portion 57 (see FIGS. 3 to 6).

The connector terminals 21 are accommodated in the housing body 51. The housing 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 a corresponding connector terminal 21. The outer frame portion 52 is formed in a cylindrical shape surrounding the plurality of terminal holding portions 53. In the middle of the terminal holding portion 53, the plurality of terminal holding portions 53 and the outer frame portion 52 are connected by a flat connecting portion. An opening 51A through which the external charging connector is inserted and removed is formed in a portion of the outer frame portion 52 facing the outside of the vehicle beyond the connecting portion. The terminal holding portion 53 is located inside the opening 51A when viewed along the insertion and removal direction of the external charging connector. A lid unit 80 is attached to the front of the housing body 51. A retainer 60 is attached to the rear of the housing 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 that protrudes around the outer frame portion 52 at the middle portion of the housing main body 51. The vehicle mounting portion 54 is attached to the mounting portion 100 by, for example, screws S.

The wire pressing portion 57 presses the middle portion of the wire 30 extending from the terminal 20. This makes it difficult for vibrations occurring on the other end side of the wire 30 pressed by the wire pressing portion 57 to be transmitted to the terminal 20, suppressing friction between the terminal 20 and the housing body 51. At the rear of the housing body 51, a block-shaped arm 56 protrudes in the Y direction from the outer frame portion 52. The wire pressing portion 57 is provided at the tip of the arm 56 along the protruding direction from the housing body 51. Three wire pressing portions 57 are provided. Two of the three wire pressing portions 57 press two power lines 32, and the remaining wire pressing portion 57 presses one ground line 36. When viewed along the insertion/removal direction, the signal line 34 extends along the ground line 36.

<Retainer>
The retainer 60 prevents the terminals 20 from coming out of the housing 50. The retainer 60 includes a terminal pressing portion 61 and walls 64, 65, and 66.

The terminal pressing portion 61 presses the rear of the connector terminal 21 housed in the housing 50. This prevents the connector terminal 21 from falling out rearward from the housing 50. The terminal pressing portion 61 includes a rear cover portion 62 and a plurality of protruding tube portions 63 as pressing portions.

The rear cover part 62 closes the rear opening of the outer frame part 52. The rear cover part 62 has a plurality of through holes formed therein. The plurality of through holes are formed at positions corresponding to the respective terminal holding parts 53. The power terminals 22 and the relay terminals 28 are screwed in contact with each other through the through holes corresponding to the power terminals 22. The relay terminals 28 are disposed on the rear surface of the rear cover part 62. The signal lines 34 and the ground lines 36 are drawn out from the through holes corresponding to the signal terminals 24 and the ground terminals 26.

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 each terminal holding portion 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 holding portion 53 to press the corresponding protruding portion 23c, 25c, 27c from the rear. For example, among the protruding tubular portions 63, a pair of protruding tubular portions 63 corresponding to the power terminal 22 serves as a pressing portion to press the protruding portion 23c from the opposite side to the tubular portion 23a (see FIG. 5).

The walls 64, 65, and 66 protrude rearward from the rear cover portion 62 in the insertion/removal direction. The walls 64 and 65 are walls that separate the relay terminal 28 from the surroundings. The walls 64 and 65 are also restricting walls that restrict the rotation of the relay terminal 28. The structure in which the walls 64 and 65 restrict the rotation of the relay terminal 14 will be described in further detail later in relation to the relay terminal 14. The wall 66 is a partition wall that separates the terminal 20 storage space and the drainage space inside the grommet 90.

The housing 50 and the retainer 60 are provided with locking portions. In this example, the locking portions are a locking protrusion formed on the housing 50 and a locking piece formed on the retainer 60. When the locking piece locks with the locking protrusion, the retainer 60 is joined to the rear end of the housing 50 on the side opposite the opening 51A. As a result, the retainer 60 holds the connector terminal 21 together with the housing 50.

<Wire cover>
The wire cover 70 is attached to the wire pressing portion 57. The wire cover 70 prevents the wire 30 from coming out of the wire pressing portion 57. The wire cover 70 and the wire pressing portion 57 cover the entire periphery of the longitudinal middle portion of the wire 30. In this embodiment, two wire covers 70 are provided. One of the two wire covers 70 presses two power lines 32. The other of the two wire covers 70 presses one ground line 36.

<Lid unit>
The lid unit 80 is provided in front of the housing main body 51 so as to be openable and closable. When the lid unit 80 is opened, a connection port of the housing main body 51 is exposed. This allows an external charging connector to be connected to the charging connector 10. When the lid unit 80 is closed, the connection port of the housing main body 51 is closed by the lid unit 80. The lid unit 80 has a lid 82, a hinge unit 84, and a lock unit 86. The lid 82 is attached to the housing main body 51 via the hinge unit 84 so as to be openable and closable. The lock unit 86 maintains the lid 82 in a closed state. During charging work, an operator can open the lid 82 by operating the lock unit 86.

<Grommet>
The grommet 90 collectively covers the retainer 60 and the terminals 20 from the side opposite to the opening 51A with respect to the housing 50. The grommet 90 includes a first protective portion 91 and a second protective portion 94. The first protective portion 91 covers the rear end portion of the housing main body 51 and the retainer 60. The second protective portion 94 covers the electric wire pressing portion 57. The grommet 90 is an elastic member. The grommet 90 is made of an elastomer such as EPDM. The grommet 90 is, for example, an integrally molded product. The grommet is an example of an exterior member that collectively covers the retainer 60 and the terminals 20. The exterior member does not need to be an elastic member, and may be made of a hard resin, a metal, or the like. That is, the exterior member may be, for example, a protector or a grommet.

The first protective portion 91 is formed with a housing pull-out opening 92 and a drainage opening 93. The housing pull-out opening 92 is an example of an opening that covers the rear end of the housing 50. The front end of the housing main body 51 extends to the outside of the grommet 90 through the housing pull-out opening 92. The housing pull-out opening 92 is formed in a cylindrical shape extending in the X direction. The drainage opening 93 is an opening for draining water that has entered the inside of the charging connector 10 to the outside. It is assumed that such water enters from the front end of the housing main body 51 when the lid unit 80 is opened, for example. The drainage opening 93 is formed in a cylindrical shape extending in the Z direction.

A cable tie 98 is attached to the outer surface of the housing pull-out opening 92. The grommet 90 is attached to the housing 50 by the cable tie 98. An annular rib 92a is provided on the inner surface of the housing pull-out opening 92. The annular rib 92a is provided around the entire circumference of the inner surface of the housing pull-out opening 92. The annular rib 92a is in close contact with the outer surface of the housing main body 51 around the entire circumference. By tightening the housing pull-out opening 92 with the cable tie 98, the annular rib 92a is compressed between the inner surface of the housing pull-out opening 92 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 pull-out opening 92.

An electric wire outlet 95 is formed in the second protective section 94. The other end of the electric wire 30 extends to the outside of the grommet 90 through the electric wire outlet 95. Three electric wire outlets 95 are provided in one grommet 90. Two of the three electric wire outlets 95 are provided for 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 wire 44 are passed through the remaining one of the three electric wire outlets 95.

<Terminal position relationship>
The positional relationship between the housing 50 and the connector terminals 21 held by the retainer 60 will be described with reference to FIGS.

The charging connector 10 includes a pair of power terminals 22. When viewed along the insertion/removal direction of the external charging connector, the pair of power terminals 22 are arranged so as to be aligned in the Z direction. For example, the pair of power terminals 22 are arranged so as to be aligned in the horizontal direction with respect to the vertical direction.

The pair of power terminals 22 are an example of a first power terminal and a second power terminal. In the following description, one of the pair of power terminals 22 may be distinguished as the first power terminal 22A and the other as the second power terminal 22B, as necessary. Each part of the first power terminal and the second power terminal may also be distinguished by adding "first" or "second" to the prefix. The power line 32 and the screw S, which is an example of a fastener, may also be distinguished by adding "first" or "second" to the prefix depending on the first power terminal 22A or the second power terminal 22B to which it is connected.

The signal terminals 24 are arranged on both sides of the line of the pair of power terminals 22 when viewed along the insertion/removal direction. In the following description, the signal terminals 24 may be classified as a first signal terminal 24A and a second signal terminal 24B. The first signal terminal 24A is one of the signal terminals 24 that is arranged on one side (e.g., the upper side) of the line of the pair of power terminals 22 in the direction in which the central axes of the pair of power terminals 22 are aligned when viewed along the insertion/removal direction. The second signal terminal 24B is one of the signal terminals 24 that is arranged on the other side (e.g., the lower side) of the line of the pair of power terminals 22 when viewed along the insertion/removal direction. As for the signal line 34 connected to the signal terminal 24, the one connected to the first signal terminal 24A may be classified as the first signal line, and the one connected to the second signal terminal 24B may be classified as the second signal line, as necessary.

Here, four first signal terminals 24A are arranged on one side (e.g., the upper side) along a direction perpendicular to the direction in which the pair of power terminals 22 are arranged. More specifically, one first signal terminal 24A is arranged on one side (e.g., the upper side) between the pair of power terminals 22 along a direction perpendicular to the direction in which the pair of power terminals 22 are arranged, and the remaining three first signal terminals 24A are arranged in a row along the direction in which the pair of power terminals 22 are arranged, at a position farther away from the pair of power terminals 22 than the one first signal terminal 24A.

Two second signal terminals 24B are arranged on the other side (e.g., the lower side) along a direction perpendicular to the direction in which the pair of power terminals 22 are arranged. More specifically, the two second signal terminals 24B are arranged on the other side (e.g., the lower side) of the pair of power terminals 22 along a direction perpendicular to the direction in which the pair of power terminals 22 are arranged, along the direction in which the pair of power terminals 22 are arranged. A ground terminal 26 is arranged between the two second signal terminals 24B. A terminal holding portion 53 that houses each connector terminal 21 is also provided at a position corresponding to each of the connector terminals 21.

<Power terminal>
A more specific example of the power terminal 22 will be described. In this embodiment, the first power terminal 22A and the second power terminal 22B have the same configuration. As shown in Fig. 8, the power terminal 22 includes a tubular portion 23a and a fastening plate portion 23b. The tubular portion 23a is provided at one end of the power terminal 22, and the fastening plate portion 23b is provided at the other end.

The cylindrical portion 23a is formed in a cylindrical shape into which the mating rod-shaped terminal 210 is inserted. The cylindrical portion 23a has a slit 23s extending from the middle portion in the longitudinal direction to the tip portion. A plurality of slits 23s are formed so as to be aligned in the circumferential direction of the cylindrical portion 23a. The long pieces 23p between the slits in the cylindrical portion 23a are connected via the annular portion on the base end side of the cylindrical portion 23a. Each long piece 23p can be elastically deformed inward and outward of the cylindrical portion 23a with the annular portion as a fulcrum. When the mating terminal 210 is inserted into the cylindrical portion 23a, each long piece 23p is elastically deformed outward of the cylindrical portion 23a. When the terminal 210 is inserted into the cylindrical portion 23a, each long piece 23p is pressed against the outer circumferential surface of the terminal 210 by the elastic force of each long piece 23p trying to return to its original shape. When the terminal 210 is pulled out of the tubular portion 23a, each long piece 23p returns to its original annular arrangement.

The fastening plate-shaped portion 23b has a fastening through hole 23bh and is formed in a plate shape. The fastening through hole 23bh does not need to be a hole surrounded by its periphery as long as it penetrates both sides of the fastening plate-shaped portion 23b. A part of the periphery of the fastening through hole 23bh may reach the outer periphery of the fastening plate-shaped portion 23b through a slit. The fastening plate-shaped portion 23b intersects with the axial direction of the above-mentioned tubular portion 23a, and here is perpendicular to the axial direction of the tubular portion 23a. When viewed along the insertion/removal direction, the fastening through hole 23bh and a through hole 29Aah (or 29Bah) described later are arranged so as to overlap with the tubular portion 23a. The central axis of the fastening through hole 23bh may coincide with the central axis of the tubular portion 23a. In this embodiment, the fastening plate-shaped portion 23b is formed in a disk shape except for a portion connected to the connecting portion 23e described next. The outer shape of the fastening plate portion 23b is not particularly limited, and may be formed into a polygonal plate shape such as a rectangular plate shape, for example. Since the fastening plate portion 23b is arranged in a direction intersecting with the central axis of the tubular portion 23a, the plate-shaped mounting portions 29Aa and 29Ba described below that are superimposed on the fastening plate portion 23b are also arranged in a direction intersecting with the insertion/removal direction.

A connecting portion 23e is provided between the tubular portion 23a and the fastening plate portion 23b. The connecting portion 23e has an elongated plate portion, one end of which is connected to a part of the circumference of the base end of the tubular portion 23a, and the other end of which is connected to one side of the fastening plate portion 23b.

The pair of protruding portions 23c protrude from both sides of the connecting portion 23e closer to the cylindrical portion 23a. When viewed along the longitudinal direction of the power terminal 22, the tips of the pair of protruding portions 23c protrude beyond the cylindrical portion 23a. As described above, the protruding cylindrical portion 63 of the retainer 60 can press the protruding portion 23c from the side opposite the cylindrical portion 23a.

The power terminal 22 may be a member formed by bending a metal plate member 220. For example, a metal plate member 220 made of a copper plate or a copper alloy plate is punched into a shape that forms the power terminal 22 (see imaginary line L in FIG. 8 for some punched shapes). During or after punching, each punched portion is bent to form the tube portion 23a, the fastening plate portion 23b, and the protrusion portion 23c. In this way, the power terminal 22 is manufactured. Such a power terminal 22 can be manufactured more efficiently and at a lower cost than when a metal block member is cut.

<Relay terminal>
The relay terminal 28 will be described in more detail. FIG. 9 is an exploded perspective view showing the retainer 60 and the relay terminal 28. As shown in FIGS. 3, 5 to 7, and 9, one of the pair of relay terminals 28 is connected to the first power terminal 22A, and the other is connected to the second power terminal 22B. The pair of relay terminals 28 are an example of a first relay terminal and a second relay terminal, and have different shapes. In the following description, as necessary, the pair of relay terminals 28 that are connected to the first power terminal 22A may be referred to as the first relay terminal 28A, and the pair of relay terminals that are connected to the second power terminal 22B may be referred to as the second relay terminal 28B. Each part of the first relay terminal 28A and the second relay terminal 28B may also be distinguished by adding "first" or "second" to the prefix.

The second relay terminal 28B has a plate-shaped mounting portion 29Ba, a power line connection portion 29Bb, and an intermediate plate-shaped portion 29Bc. When the second relay terminal 28B is fixed to the fastening plate-shaped portion 23b of the second power terminal 22B, the second relay terminal 28B extends in a direction intersecting the insertion/removal direction.

More specifically, the plate-shaped mounting portion 29Ba is formed in a plate shape. The outer shape of the plate-shaped mounting portion 29Ba is not particularly limited. The plate-shaped mounting portion 29Ba may be formed in a non-circular plate shape and may be in a shape that is in contact with the wall 65 to prevent rotation. The plate-shaped mounting portion 29Ba has a through hole 29Bah. The through hole 29Bah need only penetrate both sides of the plate-shaped mounting portion 29Ba, and does not need to be a hole surrounded by the periphery. A part of the periphery of the through hole 29Bah may reach the outer periphery of the plate-shaped mounting portion 29Ba through a slit. The plate-shaped mounting portion 29Ba may have the same configuration as a plate-shaped terminal with a hole, so-called an LA terminal. The plate-shaped mounting portion 29Ba is overlapped on the fastening plate-shaped portion 23b at the rear end of the second power terminal 22B opposite to the opening 51A. In this state, the through hole 29Bah and the fastening through hole 23bh are arranged at the same position when viewed along the insertion/removal direction. A screw S, which is an example of a fastener, is inserted into the through hole 29Bah and the fastening through hole 23bh from the opposite side to the opening 51A, and the screw S is screwed into the nut. As a result, the plate-shaped mounting portion 29Ba is fastened to the fastening plate-shaped portion 23b. In this state, the plate-shaped mounting portion 29Ba crosses the insertion/removal direction. The fastener may be a rivet instead of a screw. The fastener tightens the plate-shaped mounting portion 29Ba and the fastening plate-shaped portion 23b in a direction in which they approach each other to combine the plate-shaped mounting portion 29Ba and the fastening plate-shaped portion 23b, and the fastening direction is the fastening direction. The fastening direction is the same as the direction in which the fastener is inserted into the through hole 29Bah and the fastening through hole 23bh. In this embodiment, the fastening direction is the same as the insertion/removal direction. Therefore, the fastener can be inserted into the through hole 29Bah and the fastening through hole 23bh along the insertion/removal direction. If the fastener is a screw, the screw can be rotated around an axis along the insertion/removal direction. Plate-shaped mounting portion 29Ba includes through-hole 29Bah and is an example of a second mounting portion that is attached to second power terminal 22B. Second rotation-stopping protrusions 29Bp1 and 29Bp2 are provided on plate-shaped mounting portion 29Ba. Second rotation-stopping protrusions 29Bp will be described in further detail below in relation to wall 64.

The intermediate plate-shaped portion 29Bc extends from the plate-shaped mounting portion 29Ba in a direction intersecting the insertion/removal direction. In this embodiment, the intermediate plate-shaped portion 29Bc extends toward one side in the direction in which the pair of power terminals 22 are aligned. The plate-shaped mounting portion 29Ba and the intermediate plate-shaped portion 29Bc extend in the same plane intersecting the insertion/removal direction.

The power line connection portion 29Bb is provided at the end of the intermediate plate portion 29Bc. Therefore, the second relay terminal 28B generally extends in a direction that intersects with the insertion/removal direction.

The power line connection portion 29Bb is a portion to which the power line 32 is connected. In this embodiment, the power line connection portion 29Bb is crimped to the core wire 31a exposed at the end of the power line 32. The power line connection portion 29Bb and the core wire 31a may be connected by soldering, ultrasonic welding, or the like. The power line 32 connected to the power line connection portion 29Bb is electrically connected to the second power terminal 22B via the second relay terminal 28B. The power line 32 extends along a straight line extending from the power line connection portion 29Bb in a direction intersecting the insertion/removal direction.

The first relay terminal 28A has a plate-shaped mounting portion 29Aa, a power line connection portion 29Ab, and an intermediate plate-shaped portion 29Ac. When the first relay terminal 28A is fixed to the fastening plate-shaped portion 23b of the first power terminal 22A, the first relay terminal 28A extends in a direction intersecting the insertion/removal direction.

More specifically, the plate-shaped mounting portion 29Aa is formed in a plate shape. The plate-shaped mounting portion 29Aa has a through hole 29Aah formed therein, similar to the plate-shaped mounting portion 29Ba. As with the plate-shaped mounting portion 29Ba, the outer shape of the plate-shaped mounting portion 29Aa and the shape of the through hole 29Aah are not particularly limited. The plate-shaped mounting portion 29Aa is superimposed on the fastening plate-shaped portion 23b at the rear end of the first power terminal 22A on the side opposite to the opening 51A. In this state, the plate-shaped mounting portion 29Aa is fastened to the fastening plate-shaped portion 23b by the screw S, which is an example of a fastener, in the same manner as described above. In this state, the plate-shaped mounting portion 29Aa intersects with the insertion/removal direction. The plate-shaped mounting portion 29Aa includes the through hole 29Aah and is an example of a first mounting portion attached to the first power terminal 22A. The first rotation stop protrusion 29Ap is provided on this plate-shaped mounting portion 29Aa. The first rotation stop protrusion 29Ap will be explained further later in relation to the wall 65.

Since the first power terminal 22A and the second power terminal 22B are adjacent to each other, the plate-shaped mounting portion 29Aa and the plate-shaped mounting portion 29Ba are provided at adjacent positions with a gap between them. In this embodiment, the plate-shaped mounting portion 29Aa and the plate-shaped mounting portion 29Ba are located at the same position in the insertion/removal direction.

The intermediate plate-shaped portion 29Ac extends from the plate-shaped mounting portion 29Aa in a direction intersecting the insertion/removal direction.

The power line connection portion 29Ab is provided at the end of the intermediate plate portion 29Ac. Therefore, the first relay terminal 28A extends generally in a direction that intersects with the insertion/removal direction.

Like power line connection part 29Bb, power line connection part 29Ab is a part to which power line 32 is connected. When power line 32 is connected to power line connection part 29Ab, power line 32 is electrically connected to first power terminal 22A via first relay terminal 28A. Power line 32 extends along a straight line extending from power line connection part 29Bb in a direction intersecting with the insertion/removal direction.

The pair of power lines 32 may extend in the same direction or in different directions along a direction intersecting the insertion/removal direction. In this embodiment, the pair of power lines 32 extend in the same direction along a direction intersecting the insertion/removal direction.

That is, as described above, the power line connection portion 29Bb of the second relay terminal 28B is disposed at an outer position along the direction in which the pair of power terminals 22 are arranged relative to the plate-shaped mounting portion 29Ba. The power line connection portion 29Ab of the first relay terminal 28A is disposed at a position parallel to the power line connection portion 29Bb. More specifically, the power line connection portion 29Ab is disposed at a position more inward than the power line connection portion 29Bb. This allows the pair of power lines 32 connected to the pair of power line connection portions 29Ab, 29Bb to be extended in parallel along the direction in which the pair of power lines 32 are arranged.

The power line connection portion 29Ab of the first relay terminal 28A bypasses the plate-shaped mounting portion 29Ba and the intermediate plate-shaped portion 29Bc of the second relay terminal 28B and heads toward the power line connection portion 29Bb. Therefore, the intermediate plate-shaped portion 29Ac of the first relay terminal 28A has a structure as a bypass portion.

More specifically, the intermediate plate-shaped portion 29Ac is formed in a long, narrow plate shape. One side of one end of the intermediate plate-shaped portion 29Ac is connected to the edge of the plate-shaped mounting portion 29Aa on the opposite side from the second relay terminal 28B. This allows the intermediate plate-shaped portion 29Ac to follow the insertion/removal direction. By bending the intermediate plate-shaped portion 29Ac in its thickness direction, it becomes easier to make the intermediate plate-shaped portion 29Ac follow a narrow and flexible path when viewed along the insertion/removal direction.

In this embodiment, the intermediate plate-shaped portion 29Ac includes an inclined portion 29Ac1 and an aligned direction portion 29Ac2 (see Figures 7 and 9). The inclined portion 29Ac1 is a portion that is inclined from a portion connected to the plate-shaped mounting portion 29Aa toward the space between the pair of power terminals 22 while inclining toward the direction in which the pair of power terminals 22 are aligned. The inclined portion 29Ac1 extends toward a position farther away from the plate-shaped mounting portion 29Aa than the first signal terminal 24A. The aligned direction portion 29Ac2 is a portion that extends along the direction in which the pair of power terminals 22 are aligned while bending from the end of the inclined portion 29Ac1. The aligned direction portion 29Ac2 extends along a path that is more outer than the first signal terminal 24A. The power line connection portion 29Ab is connected to the end of the aligned direction portion 29Ac2. In this way, the intermediate plate portion 29Ac follows a detouring path that is outside the pair of power terminals 22 and the first signal terminal 24A.

In this embodiment, the intermediate plate-shaped portion 29Ac is a plate-shaped portion along the insertion/removal direction, and the intermediate plate-shaped portion 29Bc is a plate-shaped portion along the direction intersecting the insertion/removal direction. The relay terminal 28 must be a member having a cross-sectional area commensurate with the current flowing therethrough in order to form a power path. For this reason, the intermediate plate-shaped portions 29Ac and 29Bc must also be set to a width and thickness according to the current. For example, if both the intermediate plate-shaped portion 29Ac and the intermediate plate-shaped portion 29Bc are aligned in a direction intersecting the insertion/removal direction, a large area is required to arrange the intermediate plate-shaped portion 29Ac and the intermediate plate-shaped portion 29Bc, as viewed along the insertion/removal direction. By changing the extension direction of the intermediate plate-shaped portions 29Ac and 29Bc and combining them as in this embodiment, it becomes easier to arrange the intermediate plate-shaped portions 29Ac and 29Bc in a compact space. In particular, by aligning the intermediate plate portion 29Ac, which acts as a detour and tends to have a long path length, along the insertion/removal direction, it is easier to arrange the intermediate plate portions 29Ac and 29Bc in a compact space when viewed along the insertion/removal direction.

In addition, because the intermediate plate portion 29Ac is bent from the fastening plate portion 23b of the first power terminal 22A toward the tubular portion 23a, the intermediate plate portion 29Ac itself is positioned within the length dimension of the first power terminal 22A along the insertion/removal direction. Therefore, the presence of the intermediate plate portion 29Ac along the insertion/removal direction is unlikely to affect the size of the charging connector 10 in the insertion/removal direction.

The relay terminal 28 has a shape in which the plate-shaped parts are connected on the same plane or a shape in which the plate-shaped parts are bent, so it can be formed by bending a metal plate member by pressing or the like.

The relay terminal 28 may have a first plating layer 28f. The power terminal 22 may have a second plating layer 22f. The abrasion resistance of the second plating layer 22f may be higher than that of the first plating layer 28f. The abrasion resistance here may be evaluated, for example, by a reciprocating abrasion test method defined in the abrasion resistance test method for plating of JIS H 8503:1989. For example, the first plating layer 28f may contain tin, and the second plating layer 22f may contain silver.

Unlike the relay terminal 28, the tubular portion 23a of the power terminal 22 is repeatedly inserted and removed from the mating terminal 210. Therefore, by applying the second plating layer 22f, which has high abrasion resistance, to the power terminal 22, a good electrical connection between the power terminal 22 and the terminal 210 is maintained. In contrast, since the relay terminal 28 does not rub against other terminals, etc., it is possible to select a plating material that takes into account other characteristics (e.g., corrosion resistance, cost, etc.) without placing emphasis on abrasion resistance.

The relay terminal 28 may be fixed to the pair of power terminals 22, for example, by fastening and fixing the plate-shaped mounting portions 29Aa, 29Ba to the fastening plate-shaped portion 23b exposed to the rear of the retainer 60 while the pair of power terminals 22 is held by the housing 50 and the retainer 60.

<Terminals and walls>
The positional relationship between the walls 64, 65 provided on the retainer 60 and the terminals 20 will be described in more detail. Fig. 10 is a rear view showing the relationship between the walls 64, 65 of the retainer 60 and the first relay terminal 28A and the second relay terminal 28B. That is, since the first relay terminal 28A and the second relay terminal 28B are fixed by fasteners such as screws S, there is a possibility that they may rotate around the fasteners. The walls 64, 64 restrict the rotation of the first relay terminal 28A and the second relay terminal 28B.

As shown in Figures 3, 5, 7, 9, and 10, the wall 64 is a wall that surrounds the first relay terminal 28A and is an example of a first protrusion that restricts the rotation of the first relay terminal 28A.

The wall 64 will be described in more detail in relation to the plate-shaped mounting portion 29Aa of the first relay terminal 28A. The plate-shaped mounting portion 29Aa includes a first rotation stopper protrusion 29Ap that partially protrudes around the first through hole 29Aah in a direction intersecting (here, perpendicular to) the insertion/removal direction. More specifically, the plate-shaped mounting portion 29Aa includes a main body portion 29Aq that protrudes from one side edge of the intermediate plate-shaped portion 29Ac and a first rotation stopper protrusion 29Ap that protrudes from one side of the main body portion 29Aq. The main body portion 29Aq is a plate surrounded by a U-shaped line and a straight line. The straight line portion of the main body portion 29Aq is connected to the intermediate plate-shaped portion 29Ac. The center of curvature of the U-shaped portion of the main body portion 29Aq coincides with the center of curvature of the first through hole 29Aah. The first rotation stop protrusion 29Ap is formed in a plate shape protruding from one side of the main body 29Aq (the side opposite to the side from which the intermediate plate-shaped portion 29Ac protrudes). Therefore, the first rotation stop protrusion 29Ap protrudes partially around the first through hole 29Aah in a direction intersecting (here, perpendicular to) the insertion/removal direction. The tip of the first rotation stop protrusion 29Ap extends in a direction inclined opposite to the straight line portion of the main body 29Aq toward the side opposite to the side from which the intermediate plate-shaped portion 29Ac protrudes.

Here, the intermediate plate-shaped portion 29Ac is the portion that connects the plate-shaped mounting portion 29Aa to the first power line connection portion 29Ab. The first rotation stop protrusion 29Ap protrudes around the first through hole 29Aah in a direction different from the direction in which the intermediate plate-shaped portion 29Ac extends. This first rotation stop protrusion 29Ap can effectively increase the surface area of the first relay terminal 28A, and can further promote heat dissipation in the first relay terminal 28A. In other words, even if the first rotation stop protrusion 29Ap does not easily contribute as a conductor that flows a current for supplying power from the plate-shaped mounting portion 29Aa to the first power line connection portion 29Ab, it enhances the heat dissipation of the first relay terminal 28A, thereby fulfilling the role of suppressing the temperature rise of the first relay terminal 28A.

The wall 64 is a wall surrounding the plate-shaped mounting portion 29Aa and the intermediate plate-shaped portion 29Ac of the first relay terminal 28A. The wall 64 is an example of a first convex portion that protrudes along the insertion/removal direction and contacts the first rotation stop convex portion 29Ap to restrict the rotation of the first relay terminal 28A. More specifically, when viewed along the insertion/removal direction, the wall 64 is formed so as to follow the outer periphery of the main body portion 29Aq and the first rotation stop convex portion 29Ap in the plate-shaped mounting portion 29Aa. The portion 64p of the wall 64 surrounding the first rotation stop convex portion 29Ap partially detours outward around the first through hole 29Aah to form a space to accommodate the first rotation stop convex portion 29Ap. In addition, the inner surface of the portion 64p of the wall 64 is formed with protrusions 64p1 and 64p2 that are along the insertion/removal direction. The protrusions 64p1 and 64p2 are formed at positions that allow them to contact the first rotation stop protrusion 29Ap from both sides of the first rotation stop protrusion 29Ap. By partially protruding thinly from the wall 64, the protrusions 64p1 and 64p2 can minimize the gap between the first rotation stop protrusion 29Ap and the outer periphery, thereby more reliably restricting the rotation of the first rotation stop protrusion 29Ap.

In other words, if the shape of the inner peripheral surface of the wall 64 is set to be the same as the shape of the plate-shaped mounting portion 29Aa, it will be difficult to fit the plate-shaped mounting portion 29Aa into the wall 64. Therefore, if the shape of the inner peripheral surface of the wall 64 is made slightly larger than the shape of the plate-shaped mounting portion 29Aa, the assembly work of the plate-shaped mounting portion 29Aa will be easier. In this case, there is a possibility that the plate-shaped mounting portion 29Aa will move in the rotational direction within the wall 64. Therefore, by making the protrusions 64p1 and 64p2, which are part of the wall 64, protruding, the assembly work of the plate-shaped mounting portion 29Aa will be easier, while the rotation of the plate-shaped mounting portion 29Aa can be more reliably restricted.

The wall 64 also has a portion that surrounds both sides of the intermediate plate portion 29Ac when viewed along the insertion/removal direction, and this portion also has a protrusion portion 64P2 that is aligned with the insertion/removal direction. The intermediate plate portion 29Ac is fitted into this portion of the wall 64, which also restricts the rotation of the first relay terminal 28A.

The wall 64 includes a portion 64a that is interposed between the first relay terminal 28A and the first signal terminal 24A, and a portion 64b that is interposed between the first relay terminal 28A and the second signal terminal 24B. A portion of the wall 64 that surrounds the plate-shaped mounting portion 29Aa (the upper side in FIG. 10) is the portion 64a, and the other portion (the lower side in FIG. 10) is the portion 64b.

The wall 65 will now be described in more detail in relation to the plate-shaped mounting portion 29Ba of the second relay terminal 28B.

The plate-shaped mounting portion 29Ba includes second rotation stopper protrusions 29Bp1, 29Bp2 that protrude partially around the second through-hole 29Bah in a direction intersecting (here, perpendicular to) the insertion/removal direction. More specifically, the plate-shaped mounting portion 29Ba includes a main body portion 29Bq that protrudes on the opposite side of the intermediate plate-shaped portion 29Ac from the second power line connection portion 29Bb, and second rotation stopper protrusions 29Bp1, 29Bp2 that protrude from one side of the main body portion 29Bq. The main body portion 29Bq has a polygonal plate shape that gradually narrows toward the opposite side from the second power line connection portion 29Bb. The second through-hole 29Bah is formed in the main body portion 29Bq.

The second rotation stop protrusion 29Bp1 is formed in a plate shape that protrudes from one side of the main body 29Bq (here, the first signal terminal 24A side). Therefore, the second rotation stop protrusion 29Bp1 partially protrudes around the second through hole 29Bah in a direction that intersects (here, perpendicular to) the insertion/removal direction. One side edge of the second rotation stop protrusion 29Bp2 is perpendicular to the direction in which the intermediate plate-shaped portion 29Bc faces the second power line connection portion 29Bb, the tip edge of the second rotation stop protrusion 29Bp1 is parallel to that direction, and the other side edge of the second rotation stop protrusion 29Bp1 is inclined relative to that direction and connected to the main body 29Bq.

The second rotation stop protrusion 29Bp2 is formed in a plate shape that protrudes from the other side of the main body 29Bq (here, the second signal terminal 24B side). Therefore, the second rotation stop protrusion 29Bp2 partially protrudes around the second through hole 29Bah in a direction that intersects (here, perpendicular to) the insertion/removal direction. Both side edges of the second rotation stop protrusion 29Bp2 are perpendicular to the direction in which the intermediate plate-shaped portion 29Bc faces the second power line connection portion 29Bb, and the tip edge of the second rotation stop protrusion 29Bp2 is parallel to that direction.

The wall 65 is a wall that surrounds the plate-shaped mounting portion 29Ba of the second relay terminal 28B except for the portion that is connected to the intermediate plate-shaped portion 29Bc. The wall 65 is an example of a second protrusion that protrudes along the insertion/removal direction and contacts the second rotation stop protrusions 29Bp1 and 29Bp2 to restrict the rotation of the second relay terminal 28B.

More specifically, when viewed along the insertion/removal direction, the wall 65 is formed to follow the outer periphery of the main body 29Bq and the second rotation stop protrusions 29Bp1 and 29Bp2 of the plate-shaped mounting portion 29Ba. The portion 65p1 of the wall 65 surrounding the second rotation stop protrusion 29Bp1 partially detours outward around the second through hole 29Bah to form a space to accommodate the second rotation stop protrusion 29Bp1. More specifically, the portion 65p1 includes a portion facing the tip edge of the second rotation stop protrusion 29Bp1, and a protrusion 65p1p is formed on the inner surface of the portion in the insertion/removal direction. The protrusion 65p1p is formed at a position that can contact the tip edge of the second rotation stop protrusion 29Bp1. The protrusion 65p1p protrudes thinly from the wall 65 to minimize the gap with the second rotation stop protrusion 29Bp1, and can more reliably restrict the rotation of the second rotation stop protrusion 29Bp1.

The portion 65p2 of the wall 65 surrounding the second rotation stop protrusion 29Bp2 partially detours outward around the second through hole 29Bah to form a space to accommodate the second rotation stop protrusion 29Bp2. More specifically, the portion 65p2 is formed in a shape including a portion facing the tip edge of the second rotation stop protrusion 29Bp2 and the side edge opposite the second power line connection portion 29Bb. When viewed along the insertion/removal direction, the portion 65p2 is L-shaped. A protrusion 65p2p is formed at the inner corner of the portion 65p2 along the insertion/removal direction. The protrusion 65p2p is formed at a position that can contact the corner edge formed by the tip edge and one side edge of the second rotation stop protrusion 29Bp2. The protrusion 65p2p protrudes thinly from the wall 65 in part to minimize the gap with the second rotation stop protrusion 29Bp2, and can more reliably restrict the rotation of the second rotation stop protrusion 29Bp2.

The protrusions 65p1p and 65p2p, like the protrusions 64p1 and 64p2, protrude partially from the wall 65, making it easier to assemble the plate-shaped mounting part 29Ba while more reliably restricting the rotation of the plate-shaped mounting part 29Ba.

The intermediate plate-shaped portion 29Bc is the portion that connects the plate-shaped mounting portion 29Ba to the second power line connection portion 29Bb. The second rotation stop protrusions 29Bp1 and 29Bp2 protrude in a direction different from the direction in which the intermediate plate-shaped portion 29Bc extends around the second through hole 29Bah. These second rotation stop protrusions 29Bp1 and 29Bp2 improve the heat dissipation of the second relay terminal 28B, thereby suppressing the temperature rise of the second relay terminal 28B.

The wall 65 also includes a portion 65a that is interposed between the second relay terminal 28B and the first signal terminal 24A, and a portion 65b that is interposed between the second relay terminal 28B and the second signal terminal 24B. A portion of the wall 64 that surrounds the plate-shaped mounting portion 29Ba (the upper side in FIG. 10) is the portion 65a, and the other portion (the lower side in FIG. 10) is the portion 65b.

When viewed along the insertion/removal direction, in the area where a pair of power terminals 22 are adjacent to each other, wall 64 and wall 65 share a part of each other.

<Wire path in charging connector>
7 , the power line 32 extends straight through the grommet 90 from one end connected to the pair of relay terminals 28 to the other end, and then extends to the outside of the grommet 90 through the outlet. The two power lines 32 extend side by side in the Z direction through the grommet 90. The two power terminals 22 are accommodated in the housing main body 51 side by side in the Y direction. The direction in which the two power lines 32 are aligned and the direction in which the two power terminals 22 are aligned are converted by the relay terminals 28 as described above.

One end of the signal line 34 is inserted into the terminal holding portion 53. The other end of the signal line 34 extends from the through hole, is bent in the grommet 90, bundled into one, and faces the outlet of the grommet 90. More specifically, the first signal line 34A of the multiple signal lines 34 is connected to the first signal terminal 24A located above the power terminal 22, extends from the through hole, passes between the pair of power lines 32, merges with the second signal line 34B, and extends in the Y direction. The second signal line 34B is connected to the second signal terminal 24B located below the power terminal 22, extends from the through hole, merges with the first signal line 34A, and extends in the Y direction. The signal lines 34 may be bundled by a guide portion 58 provided on the wire pressing portion 57. The guide portion 58 has a pair of side walls 58a, and the multiple signal lines 34 are arranged between the side walls 58a to be bundled together. The multiple signal lines may also be bundled together using adhesive tape, cable ties, etc.

One end of the ground wire 36 is inserted into the terminal holding portion 53. The ground wire 36 extends from one end to the other end through the through hole, and while bending inside the grommet 90, moves toward the outlet of the grommet 90 together with the signal wire 34. As described above, the ground wire 36 is less likely to bend than the signal wire 34, so that the radius of curvature of the ground wire 36 tends to be larger than the radius of curvature of the signal wire 34 at the portion where the signal wire 34 and the ground wire 36 bend from the X direction toward the Y direction. The other end of the ground wire 36 is held down by the wire holding portion 57 and the wire cover 70, preventing the ground wire 36 from bulging too much inside the grommet 90.

The thermistor 42 is housed in the housing body 51 together with the power terminal 22. Therefore, one end of the thermistor wire 44 is also housed in the housing body 51. The other end of the thermistor wire 44 extends outward from the rear cover portion 62 through the through hole, and while bending inside the grommet 90, heads toward the outlet of the grommet 90. The thermistor wire 44 passes through a portion of the through hole that is used to insert the terminal-attached wire 38. The thermistor wire 44 passes between the pair of power lines 32 and extends in the Y direction together with the signal line 34.

The insertion/removal direction, the direction in which the drain hole 93 opens, and the direction in which the power line 32 extends inside the grommet 90 intersect with each other. Here, the insertion/removal direction is the X direction. The direction in which the drain hole 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/removal direction, the direction in which the drain hole 93 opens, and the direction in which the power line 32 extends inside the grommet 90 are perpendicular to each other, but may intersect at an angle other than perpendicular.

<Effects, etc.>
According to the charging connector 10 configured in this manner, the first relay terminal 28A and the second relay terminal 28B extend in a direction intersecting the insertion/removal direction. The power line 32 extends in a direction intersecting the insertion/removal direction by being connected to the first relay terminal 28A or the second relay terminal 28B. Therefore, it is not necessary to secure a space for accommodating the bent power line 32 inside the charging connector 10. This allows the charging connector 10 to be made smaller. In addition, the first rotation stop convex portion 29Ap of the first relay terminal 28A and the second rotation stop convex portions 29Bp1 and 29Bp2 of the second relay terminal 28B come into contact with the wall 64 as the first convex portion or the wall 65 as the second convex portion, thereby preventing the first relay terminal 28A and the second relay terminal 28B from rotating. This stabilizes the direction in which each power line 32 extends. In addition, since the first rotation stop protrusion 29Ap and the second rotation stop protrusions 29Bp1, 29Bp2 are portions that partially protrude around the through holes 29Aah, 29Bah, the surface area of the first relay terminal 28A and the second relay terminal 28B can be increased. This can promote heat dissipation in the first relay terminal 28A and the second relay terminal 28B. For example, the monitoring temperature of the power terminal 22 detected by a thermistor or the like is also lowered, and charging by the charging connector 10 can be performed smoothly.

In addition, the first rotation stop protrusion 29Ap and the second rotation stop protrusions 29Bp1 and 29Bp2 protrude in different directions from the intermediate plate-shaped portions 29Ac and 29Bc, so that the surface area of the first relay terminal 28A and the second relay terminal 28B can be effectively increased regardless of the power path, and heat dissipation in each relay terminal 28 can be promoted.

The walls 64, 65 also surround the plate-shaped mounting parts 29Aa, 29Ba, separating them from the surroundings, allowing for physical distinction from other components and more reliable insulation, etc.

In addition, the first relay terminal 28A has an intermediate plate-shaped portion 29Ac that serves as a bypass portion that extends to bypass the first signal terminal 24A, so that the first relay terminal 28A can be positioned while avoiding interference with the signal line 34 extending from the first signal terminal 24A.

In addition, the walls 64, 65 of the retainer 60 have portions 64a, 64b, 65a, 65b formed at positions that separate the relay terminal 28 and the signal terminal 24, so that the relay terminal 28 and the signal terminal 24 can be more reliably separated by a tangible object.

In addition, if the power line 32 extends along a straight line that crosses the insertion/removal direction within the grommet 90, the space required to accommodate the power line 32 within the grommet 90 can be reduced, and the assembly work of the power line 32 becomes easier. This makes it possible to miniaturize the charging connector, and also makes it easier to manufacture the charging connector 10.

In addition, the signal lines 34 are easier to bend than the power lines 32, so they can be easily bent and redirected within the grommet 90 and bundled together before being pulled out.

Furthermore, if the exterior member is an elastic grommet, the grommet 90 can be deformed to easily cover the entire portion of the charging connector 10 opposite the opening 51A. This improves the waterproofing of the portion of the charging connector 10 opposite the opening 51A.

In addition, since the intermediate plate-shaped portion 29Ac is a plate-shaped portion that runs along the insertion/removal direction, and the intermediate plate-shaped portion 29Bc is a plate-shaped portion that runs along a direction that intersects with the insertion/removal direction, each plate-shaped portion can be arranged in a compact space with different directions, which contributes to the miniaturization of the charging connector 10.

In addition, a water-stopping section is provided at the connection between the power line 32 and the power line connection sections 29Ab and 29Bb, thereby preventing water from adhering to the connection sections.

By using a heat shrink tube 39 as the waterproof section, the above connection part can be easily waterproofed.

[Variations]
Fig. 11 is a rear view showing a charging connector 110 according to a modified example. Note that some members such as the electric wire 30 are omitted in Fig. 11. In addition, in the description of this modified example, the same components as those described so far are denoted by the same reference numerals, and the description thereof will be omitted.

The charging connector 110 shown in FIG. 11 is provided with eight signal terminals 24. More specifically, when viewed along the insertion/removal direction, four signal terminals 24 are arranged on one side of the direction in which the pair of power terminals 22 are arranged, and four signal terminals 24 are arranged on the other side. Note that the pair of power terminals 22 are hidden by the relay terminals 28 in FIG. 11, but are arranged at positions corresponding to the pair of screws S as in the first embodiment. The four signal terminals 24 are arranged at positions corresponding to the vertices of the diamond. In this example, the ground terminal 26 is omitted. Accordingly, the structure relating to the ground terminal 26 is omitted in the housing 150 corresponding to the housing 50 and the retainer 160 corresponding to the retainer 60.

The configurations described in the above embodiments and modifications can be combined as appropriate as long as they are not mutually inconsistent.

10: charging connector 20: terminal 21: connector terminal 22: power terminal (22A: first power terminal, 22B: second power terminal)
22f second plating layer 23a tube portion 23b fastening plate-shaped portion 23bh fastening through-holes 23c, 25c, 27c protrusion 23d thermistor attachment portion 23e connecting portion 23p long piece 23s slit 24 signal terminal (24A first signal terminal, 24B second signal terminal)
25a, 27a: mating connection portion 25b, 27b: electric wire connection portion 26: ground terminal 28: relay terminal (28A: first relay terminal, 28B: second relay terminal)
28f First plating layer 29Aa, 29Ba Plate-shaped mounting portion 29Aah, 29Bah Through hole 29Ab, 29Bb Power line connection portion 29Ac, 29Bc Intermediate plate-shaped portion 29Ac1 Inclined portion 29Ac2 Arrangement direction portion 29Ap First rotation stopper protrusion 29Aq, 29Bq Main body portion 29Bp1, 29Bp2 Second rotation stopper protrusion 30 Electric wire 31a Core wire 31b Cover 32 Power line 34 Signal line (34A First signal line, 34B Second signal line)
[0033] 36 Ground wire 38 Electric wire with terminal 39 Shrink tube 40 Thermistor unit 42 Thermistor 44 Electric wire for thermistor 50 Housing 51 Housing body 51A Opening 52 Outer frame portion 53 Terminal holding portion 54 Vehicle mounting portion 56 Arm 57 Electric wire pressing portion 58 Guide portion 58a Side wall 60 Retainer 61 Terminal pressing portion 62 Rear cover portion 63 Protruding tube portion 64, 65, 66 Wall 64a, 65a Portion 64b, 65b interposed between relay terminal and first signal terminal Portion 64P2 interposed between relay terminal and second signal terminal Protrusion portion 64p Portion 64p1, 64p2 surrounding first rotation stop protrusion Protrusion portion 65p1, 65p2 Portion 65p1p, 65p2p surrounding second rotation stop protrusion Protrusion portion 70 Electric wire cover 80 Lid unit 82 Lid 84 Hinge unit 86 Lock unit 90 Grommet 91 First protective portion 92 Housing outlet 92a Annular rib 93 Drain hole 94 Second protective portion 95 Electric wire outlet 98 Cable tie 100 Mounting portion 102 Panel 104 Through hole 106 Vehicle body side cover 110 Charging connector 150 Housing 160 Retainer 200 External charging connector 210 Terminal 220 Member 230 Battery

Claims (10)

A charging connector that is mounted on a vehicle, engages with an external charging connector that is connected to an external power source of the vehicle, and is used to charge a battery provided in the vehicle,
a first power terminal and a second power terminal used for supplying power to the battery;
A signal terminal,
a housing including an opening into which the external charging connector is inserted and removed, and a terminal holding portion located inside the opening when viewed along an insertion/removal direction of the external charging connector, the terminal holding portion holding the first power terminal, the second power terminal, and the signal terminal;
a retainer that is coupled to an end of the housing opposite to the opening and that holds the first power terminal, the second power terminal, and the signal terminal together with the housing;
a first relay terminal that is fastened to an end of the first power terminal opposite to the opening and extends in a direction intersecting the insertion/removal direction;
a second relay terminal that is fastened to an end of the second power terminal opposite to the opening and extends in a direction intersecting the insertion/removal direction;
a first power line electrically connected to the first power terminal via the first relay terminal;
a second power line electrically connected to the second power terminal via the second relay terminal;
Equipped with
the first relay terminal includes a first through hole penetrating along the insertion/removal direction and a first rotation preventing protrusion protruding partially around the first through hole in a direction intersecting the insertion/removal direction, and has a first mounting portion to be mounted on the first power terminal;
the second relay terminal includes a second through hole penetrating along the insertion/removal direction and a second rotation preventing protrusion protruding partially around the second through hole in a direction intersecting the insertion/removal direction, and has a second mounting portion mounted to the second power terminal;
the retainer has a first convex portion and a second convex portion that protrude in the insertion/removal direction and contact the first rotation stop convex portion or the second rotation stop convex portion to restrict rotation of the first relay terminal or the second relay terminal ,
the first convex portion and the second convex portion are formed so as to separate the first relay terminal or the second relay terminal from the signal terminal when viewed along the insertion/removal direction . 2. The charging connector according to claim 1,
the first rotation stop protrusion and the second rotation stop protrusion protrude in a direction different from a portion connecting a portion fastened to the first power terminal or the second power terminal around the first through hole or the second through hole to a portion to which the first power line or the second power line is connected. The charging connector according to claim 1 or 2,
the first protrusion surrounds the first mounting portion, and the second protrusion surrounds the second mounting portion. The charging connector according to any one of claims 1 to 3,
The signal terminal further includes a first signal terminal and a second signal terminal;
the first signal terminal is disposed on one side of an arrangement line connecting a central axis of the first power terminal and a central axis of the second power terminal as viewed along the insertion/removal direction,
the second signal terminal is disposed on the other side of the arrangement line as viewed along the insertion/removal direction;
the first relay terminal includes a first power line connection portion to which the first power line is connected,
the second relay terminal includes a second power line connection portion to which the second power line is connected,
the first power line connection portion and the second power line connection portion are disposed at positions that allow the first power line and the second power line to extend to one side along the arrangement line,
the first relay terminal is provided between the first attachment portion and the first power line connection portion, and has a detour portion extending to detour around the first signal terminal. The charging connector according to any one of claims 1 to 4 ,
an exterior member that collectively covers the retainer, the first power terminal, the second power terminal, and the signal terminal from a side opposite to the opening,
the first power line and the second power line extend within the exterior member along a straight line that extends in a direction intersecting the insertion/removal direction. The charging connector according to claim 5 ,
A plurality of the signal terminals are provided,
a plurality of signal lines connected to the plurality of signal terminals,
The plurality of signal lines are bent and bundled together within the exterior member. The charging connector according to claim 5 or 6 ,
The charging connector, wherein the exterior member is a member having elasticity. A charging connector that is mounted on a vehicle, engages with an external charging connector that is connected to an external power source of the vehicle, and is used to charge a battery provided in the vehicle,
a first power terminal and a second power terminal used for supplying power to the battery;
A signal terminal,
a housing including an opening into which the external charging connector is inserted and removed, and a terminal holding portion located inside the opening when viewed along an insertion/removal direction of the external charging connector, the terminal holding portion holding the first power terminal, the second power terminal, and the signal terminal;
a retainer that is coupled to an end of the housing opposite to the opening and that holds the first power terminal, the second power terminal, and the signal terminal together with the housing;
a first relay terminal that is fastened to an end of the first power terminal opposite to the opening and extends in a direction intersecting the insertion/removal direction;
a second relay terminal that is fastened to an end of the second power terminal opposite to the opening and extends in a direction intersecting the insertion/removal direction;
a first power line electrically connected to the first power terminal via the first relay terminal;
a second power line electrically connected to the second power terminal via the second relay terminal;
Equipped with
the first relay terminal includes a first through hole penetrating along the insertion/removal direction and a first rotation preventing protrusion protruding partially around the first through hole in a direction intersecting the insertion/removal direction, and has a first mounting portion to be mounted on the first power terminal;
the second relay terminal includes a second through hole penetrating along the insertion/removal direction and a second rotation preventing protrusion protruding partially around the second through hole in a direction intersecting the insertion/removal direction, and has a second mounting portion mounted to the second power terminal;
the retainer has a first convex portion and a second convex portion that protrude in the insertion/removal direction and contact the first rotation stop convex portion or the second rotation stop convex portion to restrict rotation of the first relay terminal or the second relay terminal,
a part of one of the first relay terminal and the second relay terminal includes a plate-shaped portion along the insertion/removal direction,
a portion of the other of the first relay terminal and the second relay terminal includes a plate-shaped portion extending along a direction intersecting the insertion/removal direction. The charging connector according to any one of claims 1 to 8 ,
a waterproof portion is provided at each of a connection portion between the first power line and the first relay terminal and a connection portion between the second power line and the second relay terminal. 10. The charging connector according to claim 9 ,
The charging connector, wherein the waterproof portion is a heat shrink tube.

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