Charging connector

Abstract

To downsize a charging connector.SOLUTION: A charging connector comprises: a retainer 60 which holds, together with a housing, a power terminal and a signal terminal; relay terminals 28A, 28B which are fixed to the power terminal and extend in a direction intersecting an insertion / removal direction; and a power line which is electrically connected to the power terminal via the relay terminals. The relay terminals 28A, 28B include: through-holes penetrating along the insertion / removal direction; and rotation preventing protrusions 29Ap, 29Bp1, 29Bp2 which partially protrude, around the through-holes, in the direction intersecting the insertion / removal direction. The relay terminals have first fitting parts 29Aa, 29Ba fitted to the power terminal. The retainer 60 has a first protrusion 64 and a second protrusion 65 which restrict the rotation of the first relay terminal 28A or the second relay terminal 28B by making contact with the first rotation preventing protrusion 29Ap or the second rotation preventing protrusions 29Bp1, 29Bp2.SELECTED DRAWING: Figure 10

Description

[Technical field]

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

[0002] Patent Document 1 discloses a charging inlet including a cylindrical portion, a housing fitted to a base end of the cylindrical portion, and an end housing fitted to the housing. A plurality of terminals are provided inside the cylindrical portion to be electrically connected to terminals of an external connector. The terminals are electrically connected to a battery via wiring passing through the housing and the end housing. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2020-83130 A Summary of the Invention [Problem to be solved by the invention]

[0004] Power lines are used as the wiring connecting the terminals and the battery. Power lines are thicker than signal lines, so the bending radius of the power lines 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 drawn out, it is necessary to secure a space inside the end housing that can accommodate the bent power lines.

[0005] There is a demand for miniaturizing the charging inlet.

[0006] Therefore, an object of the present disclosure is to reduce the size of a charging connector. [Means for solving the problem]

[0007] A charging connector according to the present disclosure is a charging connector that is mounted on a vehicle, mates 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 into which the external charging connector is inserted and removed, and a terminal holding portion that is located inside the opening when viewed along an insertion / removal direction of the external charging connector and holds the first power terminal, the second power terminal, and the signal terminal; a retainer that combines with an end of the housing opposite to 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 to the opening and extends in a direction intersecting the insertion / removal direction; a second relay terminal extending in a direction intersecting an 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, wherein 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. Effect of the Invention

[0008] According to the present disclosure, it is possible to reduce the size of the charging connector. [Brief description of the drawings]

[0009] [Figure 1]FIG. 1 is a plan view showing a charging connector according to a first embodiment and an assembly manner thereof. FIG. [Diagram 2] FIG. 2 is a perspective view showing the charging connector according to the first embodiment. [Diagram 3] FIG. 3 is an exploded perspective view showing the charging connector according to the first embodiment. [Figure 4] FIG. 4 is a front view showing the charging connector according to the first embodiment. [Diagram 5] FIG. 5 is a cross-sectional view taken along line VV in FIG. [Figure 6] FIG. 6 is a diagram illustrating the power terminal and the electric wire with terminal, and further the housing position thereof. [Figure 7] FIG. 7 is a diagram illustrating the electric wire path in the charging connector. [Figure 8] FIG. 8 is an explanatory diagram showing a power terminal. [Figure 9] FIG. 9 is a perspective view showing a retainer and a relay terminal. [Figure 10] FIG. 10 is a rear view showing the relationship between the wall of the retainer and the first and second relay terminals. [Figure 11] FIG. 11 is a rear view showing a charging connector according to a modified example. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] [Description of the embodiments of the present disclosure] First, the embodiments of the present disclosure will be listed and described.

[0011] The charging connector of the present disclosure is as follows.

[0012] (1) A charging connector that is mounted on a vehicle, mates with an external charging connector 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 an insertion / removal direction of the external charging connector and holds the first power terminal, the second power terminal, and the signal terminal; a retainer that combines with an end of the housing opposite to 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 to the opening and extends in a direction intersecting the insertion / removal direction; a second relay terminal extending in a direction intersecting with a direction in which the retainer is inserted, 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, wherein 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 with 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 with 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.

[0013] 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 rotation between the first relay terminal and the second relay terminal. This stabilizes the extending direction of the first power line and the second power line. 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.

[0014] (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.

[0015] (3) In the charging connector according to (1) or (2), the first protrusion may surround the first mounting portion, and the second protrusion may surround the second mounting portion. This allows the first protrusion and the second protrusion to separate the mounting portions from the surroundings.

[0016] (4) In the charging connector according to any one of (1) to (3), the signal terminal may further include 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, and the first relay terminal may have a detour portion provided between the first mounting portion and the first power line connection portion and extending to detour around the first signal terminal. This allows the first relay terminal to be disposed while avoiding interference with a signal line extending from the first signal terminal.

[0017] (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 protrusion that prevents rotation.

[0018] (6) The charging connector according to any one of (1) to (5), further comprising an exterior member that collectively covers the retainer, the first power terminal, the second power terminal, and the signal terminal from the side opposite to 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 a space within the exterior member for accommodating the bent power lines. This allows the charging connector to be made smaller.

[0019] (7) The charging connector according to (6) may further include a plurality of the signal terminals and a plurality of signal lines connected to the plurality of signal terminals, the plurality of signal lines being bent and bundled together within the exterior member, whereby the first signal line and the second signal line can also be turned around within the exterior member and bundled together for extraction.

[0020] (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.

[0021] (9) In the charging connector of any one of (1) to (8), a part 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 part 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.

[0022] (10) In the charging connector according to any one of (1) to (9), a water blocking portion may be 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, thereby making it possible to prevent water from entering each connection portion.

[0023] (11) In the charging connector of (10), the waterproofing portion may be a heat shrink tube. This makes it possible to easily waterproof each connection portion by using the heat shrink tube.

[0024] [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.

[0025] [Embodiment 1] The charging connector according to the first embodiment will be described below.

[0026] <About the vehicle> First, a vehicle in which the charging connector is installed will be described.

[0027] The vehicle into 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 may be 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 FIG. 5) can be inserted and electrically connected. The external charging connector is a connector for a charging cable extending from an external power source.

[0028] Generally, there are two types of charging modes for a battery in a vehicle: normal charging and rapid charging. Rapid charging allows charging in a shorter time than normal charging by passing a larger current than normal charging. For normal charging, a household power source or an equivalent external power source is assumed to be used. For rapid charging, a dedicated power source such as a charging station is assumed to be used. The charging connector of the present disclosure is described as a charging connector compatible with rapid charging.

[0029] <Vehicle charging connector> An installation 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 installation mode.

[0030] The charging connector 10 is attached to, for example, a mounting portion 100 provided on the outer surface of the body of the vehicle. An example of the mounting portion 100 is shown in Fig. 1. 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 bottom panel 102 of the mounting portion 100.

[0031] 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 a 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 by a hinge or the like so as to be openable and closable. 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 the charging connector 10, charging is performed on a battery 230 provided in the vehicle.

[0032] In the present disclosure, as shown in FIG. 1, of the mutually orthogonal X-, Y-, and Z-directions, the X-direction is a direction parallel to the direction in which the charging connector 10 penetrates 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 a direction in which a pair of power terminals 22, which will be described later, are aligned. The Z-direction is a direction orthogonal to both the X- and Y-directions. For example, when the charging connector 10 is provided on a side surface of the vehicle, the X-direction is considered to be the width direction of the vehicle, the Y-direction is considered to be the front-rear direction of the vehicle, and the Z-direction is considered to be the vertical direction. Also, for example, when the 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 considered to be the width direction of the vehicle, and the Z-direction is considered to be the vertical direction.

[0033] <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 VV in Fig. 4. Fig. 6 is a diagram illustrating a terminal-fitted 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-fitted electric wires 38 are omitted in Fig. 6.

[0034] 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.

[0035] <Terminal> The terminal 20 includes a connector terminal 21 and a relay terminal 28 (see Figs. 3 to 6). The connector terminal 21 is accommodated in a housing 50. The connector terminal 21 is connected to a terminal of a mating connector. The number and type of the connector terminals 21 are set appropriately depending on the standard of the charging connector 10, etc. In this embodiment, two power terminals 22, six signal terminals 24, and one ground terminal 26 are provided as the connector terminals 21. The relay terminal 28 is interposed between the power terminal 22 and the electric wire 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.

[0036] The power terminal 22 is a terminal used for supplying power to the battery 230. The power terminal 22 has a cylindrical portion 23a, a fastening plate-shaped portion 23b, and a protruding portion 23c. The power terminal 22 further has a thermistor attachment portion 23d.

[0037] The cylindrical portion 23a is a portion that is electrically connected to a power supply terminal of the external charging connector. The fastening plate portion 23b is a 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.

[0038] 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.

[0039] The protrusions 23c, 25c, and 27c are provided at the middle portion of each connector terminal 21. The protrusions 23c, 25c, and 27c are portions that are pressed by the retainer 60. The thermistor attachment portion 23d is a portion where the thermistor unit 40 is attached.

[0040] 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 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 the example of the present embodiment, the electric wire 30 includes two power lines 32, six signal lines 34, and one ground line 36 (see FIGS. 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.

[0041] 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 a plurality of metallic 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 plurality of electric wires 30, a plurality of types of electric wires 30 having 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 larger accordingly. Also, the thickness of the electric wire 30 is usually correlated with the difficulty of bending the electric wire 30, and the thicker the electric wire 30, the harder it is to bend. For example, when an easy-to-bend electric wire and a hard-to-bend electric wire are bent by the same angle, the radius of curvature of the hard-to-bend electric wire becomes larger than the radius of curvature of the easy-to-bend electric wire, and therefore a larger arrangement space is required.

[0042] 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. Furthermore, 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.

[0043] <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, an electric wire 38 with a terminal in which a power line 32 and a relay terminal 28 are integrated, an electric wire 38 with a terminal in which a signal line 34 and a signal terminal 24 are integrated, and an electric wire 38 with a terminal in which a ground line 36 and a ground terminal 26 are integrated are provided.

[0044] As shown in FIG. 6, a water-stopping part may be provided at the connection part between the electric wire 30 and the terminal 20 of the electric wire with terminal 38. The water-stopping part may be a heat-shrinkable tube 39 that is heat-shrunk while covering the connection part. This prevents water from splashing on the connection part 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 part of the terminal 20 in front of the part to which the electric wire 30 is connected to the part of the electric wire 30 where the coating 31b is located. The heat-shrinkable tube 39 is covered on the electric wire with terminal 38 in a large diameter state before being heated. Thereafter, when the heat-shrinkable tube 39 is heated and shrunk, it takes a shape corresponding to the shape of the connection part, so that it can be closely attached to the connection part. For example, a hot melt adhesive may be provided on the inner surface of the heat-shrinkable tube 39. As a result, the hot melt adhesive can 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, and the waterproofing of the heat shrink tube 39 is improved. The hot melt adhesive may not be provided on the inner surface of the heat shrink tube 39. 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, the heat shrink tube 39 that covers the connection portion between the power line connection portions 29Ab, 29Bb and the power line 32 in the relay terminal 28 is shown.

[0045] <Thermistor unit> The thermistor unit 40 measures the temperature of the power terminal 22. In the charging connector 10 for quick 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 correspondingly large. 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. The thermistor wire 44 is thinner than the power wire 32 and the ground wire 36. For this reason, the thermistor wire 44 is more easily bent than the power wire 32 and the ground wire 36.

[0046] <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).

[0047] The connector terminals 21 are accommodated in the housing main body 51. The housing main body 51 has an outer frame portion 52 and a plurality of terminal holding portions 53. Each of the plurality of terminal holding portions 53 is formed in a cylindrical shape capable of accommodating a corresponding connector terminal 21. The outer frame portion 52 is formed in a cylindrical shape surrounding the plurality of terminal holding portions 53. At an intermediate portion of the terminal holding portion 53, the plurality of terminal holding portions 53 and the outer frame portion 52 are connected by a flat plate-shaped connecting portion. An opening portion 51A through which the external charging connector is inserted and removed is formed in a portion of the outer frame portion 52 facing toward the outside of the vehicle beyond the connecting portion. The terminal holding portion 53 is located inside the opening portion 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 main body 51. A retainer 60 is attached to the rear of the housing main body 51.

[0048] The vehicle mounting portion 54 is a portion for mounting the charging connector 10 to the mounting portion 100. The vehicle mounting portion 54 is formed in a plate shape protruding around the outer frame portion 52 in the middle portion of the housing body 51. The vehicle mounting portion 54 is attached to the mounting portion 100 by, for example, screws S.

[0049] The electric wire pressing portion 57 presses the middle portion of the electric wire 30 extending from the terminal 20. This makes it difficult for vibrations occurring on the other end side of the electric wire 30 from the portion pressed by the electric wire pressing portion 57 to be transmitted to the terminal 20, and friction between the terminal 20 and the housing body 51 is suppressed. 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 electric wire pressing portion 57 is provided at the tip portion of the arm 56 along the protruding direction from the housing body 51. Three electric wire pressing portions 57 are provided. Two of the three electric wire pressing portions 57 press two power lines 32, and the remaining one electric 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.

[0050] <Retainer> The retainer 60 prevents the terminals 20 from coming off the housing 50. The retainer 60 includes a terminal pressing portion 61 and walls 64, 65, and 66.

[0051] The terminal pressing portion 61 presses the rear of the connector terminal 21 accommodated 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.

[0052] The rear cover part 62 closes the rear opening of the outer frame part 52. A plurality of through holes are formed in the rear cover part 62. 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 in contact with each other and screwed 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.

[0053] The multiple protruding tubular portions 63 protrude forward (toward the housing 50) from the rear cover portion 62. The multiple protruding tubular portions 63 are formed at positions corresponding to the respective terminal holding portions 53. Each protruding tubular portion 63 communicates with each through hole. The tip of each protruding tubular portion 63 is inserted into the corresponding terminal 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).

[0054] The walls 64, 65, 66 protrude rearward from the rear cover portion 62 in the insertion / removal direction. The walls 64, 65 are walls that separate the relay terminal 28 from the surroundings. The walls 64, 65 are also restricting walls that restrict the rotation of the relay terminal 28. The configuration in which the walls 64, 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 accommodation space and the drainage space inside the grommet 90.

[0055] 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 is locked to the locking protrusion, the retainer 60 is joined to the rear end of the housing 50 on the opposite side to the opening 51A. As a result, the retainer 60 holds the connector terminal 21 together with the housing 50.

[0056] <Wire cover> The wire cover 70 is attached to the wire pressing portion 57. The wire cover 70 prevents the wire 30 from slipping 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 wires 32. The other of the two wire covers 70 presses one ground wire 36.

[0057] <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.

[0058] <Grommet> The grommet 90 covers the retainer 60 and the terminals 20 together from the side opposite to the opening 51A with respect to the housing 50. The grommet 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 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 covers the retainer 60 and the terminals 20 together. The exterior member does not need to be an elastic member, and may be made of hard resin, metal, or the like. That is, the exterior member may be, for example, a protector or a grommet.

[0059] A housing pull-out opening 92 and a drainage opening 93 are formed in the first protection portion 91. 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.

[0060] 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. When the housing pull-out opening 92 is fastened by 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.

[0061] An electric wire outlet 95 is formed in the second protective portion 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 passes through each of the two electric wire outlets 95. The signal line 34, the ground line 36, and the thermistor electric wire 44 are passed through the remaining one of the three electric wire outlets 95.

[0062] <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.

[0063] 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 to be aligned in the Z direction. For example, the pair of power terminals 22 are arranged to be aligned in the horizontal direction with respect to the vertical direction.

[0064] 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 a first power terminal 22A and the other as a second power terminal 22B, as necessary. Each part of the first power terminal and the second power terminal may also be distinguished by adding a "first" or a "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 a "first" or a "second" to the prefix depending on the first power terminal 22A or the second power terminal 22B to which they are connected.

[0065] The signal terminals 24 are arranged on both sides of the line of the pair of power terminals 22 as 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 line of the central axes of the pair of power terminals 22 as 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 as viewed along the insertion / removal direction. As for the signal line 34 connected to the signal terminals 24, the one connected to the first signal terminal 24A may be classified as a first signal line, and the one connected to the second signal terminal 24B may be classified as a second signal line, as necessary.

[0066] Here, four first signal terminals 24A are arranged on one side (e.g., the upper side) along a direction perpendicular to the line-up direction of the pair of power terminals 22. 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 line-up direction of the pair of power terminals 22, and the remaining three first signal terminals 24A are arranged in a position farther away from the pair of power terminals 22 than the one first signal terminal 24A, along the line-up direction of the pair of power terminals 22.

[0067] Further, 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 side by side with respect to the pair of power terminals 22, along the direction in which the pair of power terminals 22 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. A ground terminal 26 is arranged between the two second signal terminals 24B. Terminal holding portions 53 that house each connector terminal 21 are also provided at positions corresponding to each of the connector terminals 21.

[0068] <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-shaped portion 23b. The tubular portion 23a is provided at one end of the power terminal 22, and the fastening plate-shaped portion 23b is provided at the other end.

[0069] The cylindrical portion 23a is formed in a cylindrical shape into which the mating rod-shaped terminal 210 is inserted. The cylindrical portion 23a is formed with a slit 23s extending from the longitudinal middle portion 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. The long pieces 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, the long pieces 23p are elastically deformed outward of the cylindrical portion 23a. When the terminal 210 is inserted into the cylindrical portion 23a, the long pieces 23p are pressed against the outer circumferential surface of the terminal 210 by the elastic force of the long pieces 23p trying to return to their original shape. When the terminal 210 is pulled out of the cylindrical portion 23a, the long pieces 23p return to their original annular arrangement.

[0070] The fastening plate-shaped portion 23b has a fastening through hole 23bh and is a portion formed in a plate shape. The fastening through hole 23bh may penetrate both sides of the fastening plate-shaped portion 23b, and does not need to be a hole surrounded by a periphery. 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 crosses 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-shaped portion 23b is not particularly limited, and may be formed in a polygonal plate shape such as a quadrangular plate shape, for example. Since the fastening plate portion 23b is arranged along a direction intersecting the central axis of the tubular portion 23a, the plate-shaped mounting portions 29Aa, 29Ba described later, which are superimposed on the fastening plate portion 23b, are also arranged along a direction intersecting the insertion / removal direction.

[0071] A connecting portion 23e is provided between the cylindrical 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 circumferential direction of the base end portion of the cylindrical portion 23a, and the other end of which is connected to one side of the fastening plate portion 23b.

[0072] 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 tip portions 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 cylindrical portion 23c from the side opposite the cylindrical portion 23a.

[0073] The power terminal 22 may be a member formed by bending a metal plate-like member 220. For example, a metal plate-like member 220 made of a copper plate, a copper alloy plate, or the like is punched into a shape that forms the power terminal 22 (see imaginary line L in FIG. 8 for a part of the punched shape). During or after punching, each punched portion is bent to form the tubular portion 23a, the fastening plate-like portion 23b, and the protruding portion 23c. In this way, the power terminal 22 is manufactured. The power terminal 22 can be manufactured more efficiently and at a lower cost than when a metal block member is cut.

[0074] <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 is connected to the first power terminal 22A may be distinguished as the first relay terminal 28A, and the one that is connected to the second power terminal 22B may be distinguished 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.

[0075] 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. In a state in which 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.

[0076] 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 is formed with 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, which is defined as 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 may be rotated around an axis along the insertion / removal direction. The plate-shaped mounting portion 29Ba includes a through hole 29Bah and is an example of a second mounting portion that is attached to the second power terminal 22B. Second rotation stop protrusions 29Bp1 and 29Bp2 are provided on the plate-shaped mounting portion 29Ba. The second rotation stop protrusions 29Bp will be described in further detail below in relation to the wall 64.

[0077] An 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 arranged. The plate-shaped mounting portion 29Ba and the intermediate plate-shaped portion 29Bc extend in the same plane intersecting the insertion / removal direction.

[0078] A power line connection portion 29Bb is provided at an end of the intermediate plate-shaped portion 29Bc. Therefore, the second relay terminal 28B generally extends in a direction intersecting the insertion / removal direction.

[0079] 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.

[0080] 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.

[0081] 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 the plate-shaped mounting portion 29Aa. The first rotation stop projection 29Ap will be described in further detail below in relation to the wall 65.

[0082] 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 therebetween. 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.

[0083] An intermediate plate-shaped portion 29Ac extends from the plate-shaped attachment portion 29Aa in a direction intersecting the insertion / removal direction.

[0084] A power line connection portion 29Ab is provided at an end of the intermediate plate-shaped portion 29Ac. Therefore, the first relay terminal 28A as a whole extends in a direction intersecting the insertion / removal direction.

[0085] Like the power line connection portion 29Bb, the power line connection portion 29Ab is a portion to which the power line 32 is connected. When the power line 32 is connected to the power line connection portion 29Ab, the power line 32 is electrically connected to the first power terminal 22A via the first relay terminal 28A. The power line 32 extends along a straight line extending from the power line connection portion 29Bb in a direction intersecting with the insertion / removal direction.

[0086] 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.

[0087] That is, as described above, the power line connection portion 29Bb of the second relay terminal 28B is disposed at an outer position in 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 in the direction in which the pair of power lines 32 are arranged.

[0088] The power line connection portion 29Ab of the first relay terminal 28A detours around 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 detour portion.

[0089] More specifically, the intermediate plate-shaped portion 29Ac is formed in a long and narrow plate shape. One side of one end of the intermediate plate-shaped portion 29Ac is connected to an edge of the plate-shaped mounting portion 29Aa on the opposite side to the second relay terminal 28B. This allows the intermediate plate-shaped portion 29Ac to bend along the insertion / removal direction. By bending the intermediate plate-shaped portion 29Ac in its thickness direction, the intermediate plate-shaped portion 29Ac can be easily aligned along a narrow and flexible path when viewed along the insertion / removal direction.

[0090] In this embodiment, the intermediate plate-shaped portion 29Ac includes an inclined portion 29Ac1 and an aligned direction portion 29Ac2 (see Figs. 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 a portion between the pair of power terminals 22 while being inclined with respect to the aligned direction of the pair of power terminals 22. The inclined portion 29Ac1 extends toward a position farther away from the first signal terminal 24A with respect to the plate-shaped mounting portion 29Aa. The aligned direction portion 29Ac2 is a portion that extends along the aligned direction of the pair of power terminals 22 while bending from an end of the inclined portion 29Ac1. The aligned direction portion 29Ac2 extends along a path outside the first signal terminal 24A. The power line connection portion 29Ab is connected to an end of the aligned direction portion 29Ac2. In this manner, the intermediate plate-shaped portion 29Ac passes through a detouring path that passes through a path outside the pair of power terminals 22 and the first signal terminal 24A.

[0091] 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 intermediate terminal 28 is required to be a member having a cross-sectional area corresponding to the current flowing therethrough in order to form a power path. For this reason, the intermediate plate-shaped portions 29Ac and 29Bc also need to 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 along the 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 combining the intermediate plate-shaped portions 29Ac and 29Bc with their extending directions changed 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 intermediate plate portion 29Ac, which acts as a detour and tends to have a long path length, along the insertion / removal direction, intermediate plate portions 29Ac, 29Bc can be easily arranged in a compact space when viewed along the insertion / removal direction.

[0092] Furthermore, because intermediate plate portion 29Ac is bent from fastening plate portion 23b of first power terminal 22A toward cylindrical portion 23a, intermediate plate portion 29Ac itself is disposed within the length dimension of first power terminal 22A along the insertion / removal direction. For this reason, the presence of intermediate plate portion 29Ac along the insertion / removal direction is unlikely to affect the size of charging connector 10 in the insertion / removal direction.

[0093] The relay terminal 28 has a shape in which plate-like portions are connected on the same plane or a shape in which plate-like portions are bent, and therefore can be formed by bending a metal plate member by press working or the like.

[0094] The relay terminal 28 may have a first plating layer 28f. The power terminal 22 may have a second plating layer 22f. The second plating layer 22f may have a higher abrasion resistance than the first plating layer 28f. The abrasion resistance may be evaluated by, for example, 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.

[0095] Unlike the relay terminal 28, the mating terminal 210 is repeatedly inserted and removed from the cylindrical portion 23a of the power terminal 22. Therefore, by providing the power terminal 22 with the second plating layer 22f, which has high abrasion resistance, 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 consideration other characteristics (e.g., corrosion resistance, cost, etc.) without placing importance on abrasion resistance.

[0096] 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.

[0097] <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.

[0098] As shown in FIGS. 3, 5, 7, 9, and 10, the wall 64 is a wall that surrounds the periphery of the first relay terminal 28A, and is an example of a first protrusion that restricts rotation of the first relay terminal 28A.

[0099] 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 stop 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 stop protrusion 29Ap that protrudes from one side of the main body portion 29Aq. The main body portion 29Aq is plate-shaped and 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.

[0100] Here, the portion that connects the plate-shaped mounting portion 29Aa to the first power line connecting portion 29Ab is the intermediate plate-shaped portion 29Ac. 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. The 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. That is, 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 connecting portion 29Ab, it enhances the heat dissipation of the first relay terminal 28A, thereby fulfilling the role of suppressing a temperature rise in the first relay terminal 28A.

[0101] 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 protrusion that protrudes along the insertion / removal direction and contacts the first rotation stop protrusion 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 29Aq and the first rotation stop protrusion 29Ap of the plate-shaped mounting portion 29Aa. A portion 64p of the wall 64 surrounding the first rotation stop protrusion 29Ap partially detours outward around the first through hole 29Aah to form a space for accommodating the first rotation stop protrusion 29Ap. In addition, protrusions 64p1 and 64p2 are formed on the inner surface of the portion 64p of the wall 64 along the insertion / removal direction. The protrusions 64p1, 64p2 are formed at positions capable of contacting the first rotation stop protrusion 29Ap from both sides of the first rotation stop protrusion 29Ap. The protrusions 64p1, 64p2 partially protrude thinly from the wall 64, thereby minimizing the gap between the first rotation stop protrusion 29Ap and the outer circumferential edge thereof and more reliably restricting the rotation of the first rotation stop protrusion 29Ap.

[0102] That is, 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 becomes 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 becomes easier. In this case, there is a possibility that the plate-shaped mounting portion 29Aa may 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 is made easier and the rotation of the plate-shaped mounting portion 29Aa can be more reliably restricted.

[0103] The wall 64 also has portions surrounding both sides of the intermediate plate-shaped portion 29Ac when viewed along the insertion / removal direction, and protrusions 64P2 are also formed on these portions along the insertion / removal direction. The intermediate plate-shaped portion 29Ac is fitted into these portions of the wall 64, thereby restricting the rotation of the first relay terminal 28A.

[0104] Further, the wall 64 includes a portion 64a interposed between the first relay terminal 28A and the first signal terminal 24A, and a portion 64b interposed between the first relay terminal 28A and the second signal terminal 24B. A part of the portion of the wall 64 surrounding the plate-shaped mounting portion 29Aa (the upper side in FIG. 10) is the portion 64a, and the other part (the lower side in FIG. 10) is the portion 64b.

[0105] The wall 65 will be described in more detail in relation to the plate-shaped mounting portion 29Ba of the second relay terminal 28B.

[0106] The plate-shaped mounting portion 29Ba includes second rotation stopper protrusions 29Bp1, 29Bp2 that partially protrude 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.

[0107] The second rotation stop protrusion 29Bp1 is formed in a plate shape protruding 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 intersecting (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 with respect to that direction and connected to the main body 29Bq.

[0108] The second rotation stop protrusion 29Bp2 is formed in a plate shape protruding to the other side (here, the second signal terminal 24B side) of the main body 29Bq. Therefore, the second rotation stop protrusion 29Bp2 partially protrudes around the second through hole 29Bah in a direction intersecting (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.

[0109] The wall 65 is a wall that surrounds the plate-shaped mounting portion 29Ba of the second relay terminal 28B except for a portion that is connected to the intermediate plate-shaped portion 29Bc. The wall 65 is an example of a second protrusion that protrudes in the insertion / removal direction and comes into contact with the second rotation stop protrusions 29Bp1, 29Bp2 to restrict rotation of the second relay terminal 28B.

[0110] More specifically, when viewed along the insertion / removal direction, the wall 65 is formed so as 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. A 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 for accommodating 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 partially protrudes thinly from the wall 65, thereby making the gap with the second rotation stopping protrusion 29Bp1 as small as possible, and can play a role in restricting the rotation of the second rotation stopping protrusion 29Bp1 more reliably.

[0111] 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 for accommodating 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 to 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 on the inner corner of the portion 65p2 along the insertion / removal direction. The protrusion 65p2p is formed at a position that can contact a corner edge formed by the tip edge and one side edge of the second rotation stop protrusion 29Bp2. The protrusions 65p2p partially protrude thinly from the wall 65, thereby making the gap with the second rotation stopping protrusions 29Bp2 as small as possible, and can play a role in restricting the rotation of the second rotation stopping protrusions 29Bp2 more reliably.

[0112] The protrusions 65p1p, 65p2p, like the protrusions 64p1, 64p2, protrude partially from the wall 65, thereby facilitating the assembly work of the plate-shaped mounting portion 29Ba while more reliably restricting the rotation of the plate-shaped mounting portion 29Ba.

[0113] The intermediate plate-shaped portion 29Bc is a 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. The second rotation stop protrusions 29Bp1 and 29Bp2 enhance the heat dissipation of the second relay terminal 28B, thereby suppressing a temperature rise of the second relay terminal 28B.

[0114] Further, the wall 65 includes a portion 65a interposed between the second relay terminal 28B and the first signal terminal 24A, and a portion 65b interposed between the second relay terminal 28B and the second signal terminal 24B. A part of the portion of the wall 64 surrounding the plate-shaped mounting portion 29Ba (the upper side in FIG. 10) is the portion 65a, and the other part (the lower side in FIG. 10) is the portion 65b.

[0115] When viewed along the insertion / removal direction, in a portion where a pair of power terminals 22 are adjacent to each other, wall 64 and wall 65 share a part with each other.

[0116] <Wire path in charging connector> 7, the power line 32 extends straight within 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 within the grommet 90 side by side in the Z direction. 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.

[0117] One end of the signal wire 34 is inserted into the terminal holding portion 53. The other end of the signal wire 34 extends from the through hole, is bent in the grommet 90, and is bundled into one, and faces the outlet of the grommet 90. More specifically, the first signal wire 34A of the multiple signal wires 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 wires 32, merges with the second signal wire 34B, and extends in the Y direction. The second signal wire 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 wire 34A, and extends in the Y direction. The signal wires 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, a cable tie, or the like.

[0118] 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, and therefore the radius of curvature of the ground wire 36 is likely 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, thereby preventing the ground wire 36 from bulging too much inside the grommet 90.

[0119] The thermistor 42 is accommodated in the housing body 51 together with the power terminal 22. Therefore, one end of the thermistor electric wire 44 is also accommodated in the housing body 51. The other end of the thermistor electric wire 44 extends to the outside of the rear cover part 62 through the through hole, and while bending inside the grommet 90, heads toward the outlet of the grommet 90. The thermistor electric wire 44 passes through a portion of the through hole that is used for inserting the terminal-attached electric wire 38. The thermistor electric wire 44 passes between the pair of power lines 32 and extends in the Y direction together with the signal line 34.

[0120] The insertion / removal direction, the direction in which drain outlet 93 opens, and the direction in which power line 32 extends inside grommet 90 intersect with each other. Here, the insertion / removal direction is the X direction. The direction in which drain outlet 93 opens is the Z direction. The direction in which power line 32 extends inside grommet 90 is the Y direction. The insertion / removal direction, the direction in which drain outlet 93 opens, and the direction in which power line 32 extends inside grommet 90 are perpendicular to each other, but may intersect at an angle other than perpendicular.

[0121] <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 compact. 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 areas 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.

[0122] Furthermore, since the first rotation stop protrusion 29Ap and the second rotation stop protrusions 29Bp1, 29Bp2 protrude in different directions from the intermediate plate-shaped portions 29Ac, 29Bc, 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.

[0123] Furthermore, the walls 64, 65 surround the plate-like mounting portions 29Aa, 29Ba, separating the plate-like mounting portions 29Aa, 29Ba from the surroundings, enabling physical distinction from other members and more reliable insulation.

[0124] In addition, since the first relay terminal 28A has an intermediate plate-shaped portion 29Ac as a detour portion that extends to detour around the first signal terminal 24A, the first relay terminal 28A can be positioned while avoiding interference with the signal line 34 extending from the first signal terminal 24A.

[0125] Furthermore, since the walls 64, 65 of the retainer 60 have portions 64a, 64b, 65a, 65b formed at positions separating the relay terminals 28 and the signal terminals 24, the relay terminals 28 and the signal terminals 24 can be more reliably separated by a tangible object.

[0126] Furthermore, if the power line 32 extends along a straight line within the grommet 90 that extends in a direction intersecting the insertion / removal direction, it is possible to reduce the storage space for the power line 32 within the grommet 90 and to facilitate the assembly work of the power line 32. This enables the charging connector to be made smaller and also makes it easier to manufacture the charging connector 10.

[0127] Furthermore, since the signal lines 34 are easier to bend than the power lines 32, they can be easily bent and changed direction within the grommet 90 and can be bundled together and pulled out.

[0128] Furthermore, if the exterior member is an elastic grommet, it is possible to easily cover the entire portion of charging connector 10 opposite opening 51A while deforming grommet 90. This improves the waterproofness of the portion of charging connector 10 opposite opening 51A.

[0129] In addition, since the intermediate plate-shaped portion 29Ac is a plate-shaped portion that extends along the insertion / removal direction, and the intermediate plate-shaped portion 29Bc is a plate-shaped portion that extends along a direction intersecting the insertion / removal direction, each plate-shaped portion can be arranged in a compact space with different directions, which contributes to miniaturization of the charging connector 10.

[0130] Furthermore, by providing a water blocking portion at the connection portion between the power line 32 and the power line connection portions 29Ab, 29Bb, adhesion of water to the connection portion is suppressed.

[0131] If a heat shrink tube 39 is used as the waterproof portion, the connection portion can be easily waterproofed.

[0132] [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.

[0133] In the charging connector 110 shown in FIG. 11, eight signal terminals 24 are provided. More specifically, as 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 a rhombus. In this example, the ground terminal 26 is omitted. Accordingly, structures related to the ground terminal 26 are omitted in the housing 150 corresponding to the housing 50 and the retainer 160 corresponding to the retainer 60.

[0134] The configurations described in the above embodiments and modifications can be combined as appropriate as long as they are not mutually inconsistent. [Explanation of symbols]

[0135] 10 Charging connector 20 Terminals 21 Connector terminal 22 Power terminal (22A first power terminal, 22B second power terminal) 22f Second plating layer 23a Cylinder part 23b Fastening plate part 23bh fastening through hole 23c, 25c, 27c protrusion 23d Thermistor mounting part 23e Connecting part 23p long piece 23s Slit 24 Signal terminal (24A 1st signal terminal, 24B 2nd signal terminal) 25a, 27a Mating connection part 25b, 27b Wire connection 26 Ground terminal 28 Relay terminal (28A 1st relay terminal, 28B 2nd relay terminal) 28f First plating layer 29Aa, 29Ba Plate-shaped mounting part 29Aah, 29Bah through hole 29Ab, 29Bb Power line connections 29Ac, 29Bc Intermediate plate-shaped part 29Ac1 Inclined section 29Ac2 Arrangement direction part 29Ap 1st rotation stopper protrusion 29Aq, 29Bq Main unit 29Bp1, 29Bp2 Second rotation stopper protrusion 30 Electric wire 31a core wire 31b Covering 32 Power Lines 34 Signal line (34A first signal line, 34B second signal line) 36 Ground Line 38 Wire with terminal 39 Shrink Tube 40 Thermistor unit 42 Thermistor 44 Thermistor wire 50 Housing 51 Housing body 51A opening 52 Outer frame 53 Terminal holding part 54 Vehicle mounting part 56 Arm 57 Wire clamp 58 Information Department 58a side wall 60 Retainer 61 Terminal holder 62 Rear cover part 63 Projecting cylinder part 64, 65, 66 Wall 64a, 65a: A portion interposed between the relay terminal and the first signal terminal 64b, 65b: A portion between the relay terminal and the second signal terminal 64P2 Projection part 64p Part surrounding the first rotation stopper protrusion 64p1, 64p2 protrusion 65p1, 65p2 Part surrounding the second rotation stopper protrusion 65p1p, 65p2p protrusion 70 Wire Cover 80 Lid unit 82 Lid 84 Hinge unit 86 Lock Unit 90 Grommet 91 1st Protection Department 92 Housing outlet 92a Circular rib 93 Drain port 94 2nd Protection Department 95 Wire outlet 98 Cable Ties 100 Mounting part Panel 102 104 Through hole 106 Body side cover 110 Charging connector 150 Housing 160 Retainer 200 External charging connector 210 Terminal 220 Parts 230 Battery

Claims

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, 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 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, and a first intermediate plate-shaped portion extending from the first mounting portion and connecting the first mounting portion to a portion to which the first power line is connected, The first rotation stop protrusion is formed in a plate shape protruding on a side opposite to a side from which the first intermediate plate portion extends, 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, respectively.

2. 2. The charging connector according to claim 1, the second relay terminal has a second intermediate plate-shaped portion extending from the second mounting portion and connecting the second mounting portion to a portion to which the second power line is connected, The second rotation stop protrusion includes a protrusion that protrudes laterally beyond the second intermediate plate portion.

3. The charging connector according to claim 1 or 2, the first protruding portion and the second protruding portion are walls surrounding the first mounting portion and the second mounting portion, A protrusion portion is formed on the wall along the insertion / removal direction, the protrusion portion contacts the first rotation stop protrusion or the second rotation stop protrusion to restrict rotation of the first relay terminal or the second relay terminal.

4. The charging connector according to any one of claims 1 to 3, the first protrusion surrounds the first mounting portion, and the second protrusion surrounds the second mounting portion.

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

6. The charging connector according to any one of claims 1 to 5, 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.

7. 7. The charging connector according to claim 6, 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.

8. The charging connector according to claim 6 or 7, The charging connector, wherein the exterior member is a member having elasticity.

9. 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. 10. The charging connector according to claim 9, The charging connector, wherein the waterproof portion is a heat shrink tube.

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