JP5659444B2 - Charging connector - Google Patents

Description

  The present invention relates to a charging connector for connecting to an inlet of a device including a storage battery and supplying power to the storage battery of the device. In particular, the present invention relates to a charging connector that can be released even when an abnormal situation occurs in which the engagement state of the recess of the device side inlet and the retaining hook of the charging connector cannot be released by normal operation.

  In recent years, due to growing environmental awareness, electric vehicles (typically, electric vehicles) equipped with storage batteries (batteries) and driven by motors using the electric power (typically electric vehicles) have been widely used. The expansion of the charger is planned. In addition, standardization of quick chargers for electric vehicles is being promoted for the spread of electric vehicles (for example, Japan Electric Vehicle Standard (JEVS)).

  A technique related to a charging connector on the charger side is described in Patent Document 1, for example. In this method of using the charging connector, the leading end of the charging connector is inserted into the vehicle side inlet, and then the lever of the charging connector is further gripped to complete the fitting to the vehicle side inlet. At this time, when the charging connector is inserted, the hook protrudes from the outer peripheral surface of the tip, engages with the recess provided on the inner peripheral surface of the vehicle-side inlet, and the charging connector and the vehicle-side inlet are locked. The Also, in the fitted state, the release lever is accidentally operated during power feeding by locking the release lever by energization driving of a so-called solenoid (mechanism component including an electromagnetic coil, a plunger, and a spring), and the vehicle side inlet The engagement state between the concave portion of the inner peripheral surface and the hook is prevented from being released. On the other hand, when the charging connector is removed from the vehicle-side inlet, energization of the solenoid is stopped and the release lever is unlocked by the end of power feeding. Next, the release lever is operated to retract the hook that engages with the recess on the inner peripheral surface of the vehicle-side inlet, and the charging connector is pulled out from the vehicle-side inlet with the engagement released (Patent Document 1 (paragraph 0023-)). 0026))).

JP-A-7-192802

  The charging connector is desired to be excellent in safety and operability. However, the conventional charging connector as described in Patent Document 1 has the following problems.

  When the charging connector is pulled out of the vehicle-side inlet after the power supply is completed, the release lever does not normally operate due to unexpected problems such as foreign matter biting into the mechanism related to the rotation of the release lever, and it engages with the recess of the vehicle-side inlet. An abnormal situation may occur in which the hook of the charged charging connector cannot be retracted. In this case, the engagement state between the recess and the hook cannot be released, and it becomes difficult to pull out the charging connector from the vehicle side inlet.

  The present invention has been made in view of the above circumstances, and one of its purposes is that there is an abnormal situation in which the engagement state between the recess of the device side inlet and the retaining hook of the charging connector cannot be released by normal operation. The object is to provide a charging connector that can be released even if it occurs.

  The charging connector of this invention is for connecting with the inlet of the apparatus provided with a storage battery, and supplying electric power to the storage battery of an apparatus, and is provided with a main-body part and the insertion part provided in the front end side of this main-body part. This insertion part is inserted into the apparatus side inlet. The charging connector includes a first swing arm, a retaining hook, a first urging member, and a release member. The first swing arm extends from the main body side to the insertion portion side, and has a shaft hole portion through which a shaft that can be inserted and removed from the outside of the main body portion is inserted. Rocks. The retaining hook is provided at a front portion of the first swing arm on the insertion portion side from the shaft hole portion, and can protrude outward from the insertion portion. The first urging member urges the first swing arm so that the retaining hook protrudes when the shaft is inserted into the shaft hole, and the shaft is removed from the shaft hole. When this occurs, the first swing arm is biased in the direction opposite to the side from which the retaining hook projects. When the shaft is inserted through the shaft hole, the release member abuts on a rear portion of the first swing arm opposite to the front portion, thereby preventing the first swing arm from coming off. It has a pressing part that swings in the direction opposite to the side from which the hook protrudes.

  In the charging connector according to the present invention, when the charging connector is pulled out from the state where the insertion portion is inserted into the apparatus side inlet, the first swinging is performed by the pressing portion of the release member in the normal time when the shaft is inserted into the shaft hole portion. The arm is swung in the direction opposite to the side from which the retaining hook protrudes, and the engagement state between the recessed portion provided on the inner peripheral surface of the apparatus side inlet and the retaining hook is released. However, even when an abnormal situation occurs in which the release member does not operate normally as described above, the shaft hole portion is unlocked by removing the shaft inserted through the shaft hole portion, so that the first swinging is performed. The arm is released from being fixed to the main body, and the first biasing member is biased in the direction opposite to the side from which the retaining hook protrudes, so the engagement state between the retaining hook and the recess is released. it can. That is, even if an abnormal situation occurs in which the engagement state between the concave portion and the retaining hook cannot be released by the release member, the charging connector can be easily and reliably removed from the apparatus side inlet without disassembling or destroying the charging connector. Can be pulled out.

  As one form of the charging connector of the present invention, it further has a plunger, moves the plunger in one direction when energized, and returns the plunger to its original position when deenergized, and in conjunction with the plunger, And a presser piece that advances so as to abut the surface opposite to the side from which the retaining hook projects in the front portion of the first swing arm. And when a penetration part is formed in the front part of the 1st swing arm and the above-mentioned axis is inserted in a shaft hole part, the above-mentioned presser piece will face the above-mentioned penetration part in the state where a plunger is in an original position. In the state where the plunger is moved, the presser piece advances so as to contact the front portion of the first swing arm. Further, when the shaft is removed from the shaft hole portion, the presser piece is inserted into the penetrating portion in a loosely fitted state.

  According to the above configuration, the presser piece moves forward so as to contact the front portion of the first swing arm in conjunction with the solenoid plunger. When the shaft is inserted through the shaft hole, the retaining hook is kept in a protruding state from the insertion portion by the contact of the presser piece with the first swing arm so that the retaining hook is not retracted from the insertion portion. The swing of the first swing arm can be restricted. That is, it is possible to directly prevent the retaining hook from being retracted from the insertion portion. For this reason, even if the user accidentally operates the release member, or when trouble such as impact, vibration, or damage to the first urging member that protrudes the retaining hook occurs, the retaining hook may be retracted. Therefore, it is possible to reliably prevent the engagement state between the retaining hook and the recess of the apparatus side inlet from being released. Therefore, for example, during power feeding, the charging connector does not inadvertently come off from the apparatus side inlet, and the safety is excellent.

  In this configuration, when the charging connector is pulled out from the state where it is inserted into the apparatus side inlet from the insertion portion, if the release member operates normally and the solenoid operates normally, the engagement between the recess and the retaining hook The state can be released. This is because, after the plunger is returned to the original position, as described above, the first swing arm is swung in the direction opposite to the side from which the retaining hook protrudes by the pressing portion of the release member. At this time, since the penetrating portion of the first swing arm is in a position corresponding to the presser piece returned to the original position by the solenoid, the retaining hook is retracted into the insertion portion by the swing of the first swing arm. Also, the presser piece is inserted through the penetrating portion. Therefore, the engagement state between the recess and the retaining hook can be released.

  On the other hand, even when an abnormal situation occurs in which the release member does not operate normally, the engagement state can be released by removing the shaft from the shaft hole. This is because if the solenoid operates normally at this time, the first swinging arm is removed by the first urging member by removing the shaft from the shaft hole after the plunger is returned to the original position. Since the pressing hook is biased in the direction opposite to the protruding side, the presser piece can be inserted into the penetrating portion of the first swing arm. Thereby, the retaining hook is retracted into the insertion portion, and the engagement state between the recess and the retaining hook can be released. That is, even when an abnormal situation occurs in which the release member does not operate normally, the engagement state can be released by removing the shaft from the shaft hole portion as described above.

  Furthermore, according to this configuration, even when an abnormal situation occurs in which the release member does not operate normally and the solenoid cannot return the plunger to the original position, the engagement state between the recess and the retaining hook can be released. This is because when the shaft is pulled out from the shaft hole and the charging connector is pulled, the first swinging arm is released from being fixed to the main body by pulling out the shaft, and the retaining member is locked by the first biasing member. The first swing arm is biased in the direction opposite to the protruding side. At the same time, when the charging connector is pulled out, the first swing arm slides on the holding piece and moves to the insertion portion side. As a result, the presser piece is inserted into the penetrating portion, and the engaged state between the concave portion and the retaining hook can be released.

  That is, according to this configuration, the charging connector can be easily and reliably pulled out from the apparatus side inlet without disassembling or destroying the charging connector.

  As one form of the charging connector of the present invention, it is mentioned that the central axis of the shaft hole is located on the protruding side of the retaining hook.

  According to the above configuration, since the central axis of the shaft hole portion is located on the same side as the protruding side of the retaining hook, when the retaining hook is engaged with the recess of the apparatus side inlet, The force applied to the recess is difficult to disperse, and the retaining hook can be prevented from being easily removed from the recess of the apparatus side inlet. Therefore, for example, during power feeding, the charging connector does not inadvertently come out of the apparatus side inlet, and the safety is excellent.

  As one form of the charging connector of the present invention, the inner peripheral surface of the main body has a guide surface, and there is a movement allowance between the guide surface and the shaft hole. The guide surface is a surface located on the insertion portion side of the shaft hole portion in the inner peripheral surface of the main body portion, and is inclined inward of the main body portion from the main body portion side toward the insertion portion side. The movement allowance is such that when the shaft is removed from the shaft hole portion, the shaft hole portion can move to the insertion portion side.

  According to the above configuration, the first swing arm can be used when the shaft is removed from the shaft hole portion due to troubles such as damage to the first urging member as well as the abnormal situation. Even if it cannot be urged in the direction opposite to the protruding side, the engagement state between the retaining hook and the recess can be released. This is because the shaft is removed from the shaft hole portion and the charging connector is pulled from the device side inlet, so that the first swing arm is moved relatively to the insertion portion side along the guide surface. Be guided. As a result, the first swing arm can be housed in the charging connector, and the retaining hook is retracted from the insertion portion accordingly.

  As one form of the charging connector of the present invention, there is a form in which the retaining hook has a sliding contact surface, the insertion portion has a notch, and a part of the notch is an inclined guide surface. The sliding contact surface of the retaining hook is inclined so that the thickness becomes thinner toward the distal end side of the first swing arm. The notch of the insertion part is formed so as to expose the retaining hook from the insertion part. The guide surface is a surface facing the tip of the first swing arm among the opening surfaces formed in the insertion portion by the notch, and is inclined in the same direction as the sliding contact surface of the hook.

  According to the above configuration, the first swing arm can be used when the shaft is removed from the shaft hole portion due to troubles such as damage to the first urging member as well as the abnormal situation. Even if it cannot be urged in the direction opposite to the protruding side, the engagement state between the retaining hook and the recess can be released. This is because when the shaft is removed from the shaft hole and the charging connector is pulled from the device side inlet, the retaining hook engages (contacts) with the concave portion of the device side inlet, so that the first swing is relatively performed. The arm advances to the insertion section. The retaining hook has an inclined sliding contact surface, and the guide surface of the notch is inclined in the same direction as the sliding contact surface of the retaining hook. The swing arm is in sliding contact with the guide surface. As a result, the sliding contact surface of the retaining hook is guided radially inward of the insertion portion along the inclination of the guide surface, and is moved in the direction opposite to the side from which the first swing arm protrudes. .

  The charging connector according to the present invention can reliably release the engaged state even if an abnormality occurs in the releasing member that releases the engaged state of the hook of the charging connector that is engaged with the concave portion of the inner peripheral surface of the device side inlet. .

2 is a left rear perspective view schematically showing the vehicle charging connector according to Embodiment 1. FIG. FIG. 3 is an enlarged top view of a main part schematically showing the vehicle charging connector according to the first embodiment. 3 is a left side view schematically showing the internal structure of the vehicle charging connector according to Embodiment 1. FIG. 2 is a left rear perspective view schematically showing the internal structure of the vehicle charging connector according to Embodiment 1. FIG. 2 is a right rear perspective view schematically showing the internal structure of the vehicle charging connector according to Embodiment 1. FIG. It is a principal part expanded left view which shows typically the initial state of the fitting mechanism in the charging connector for vehicles which concerns on Embodiment 1. FIG. It is a principal part expansion right view which shows typically the initial state of the fitting mechanism in the charging connector for vehicles which concerns on Embodiment 1. FIG. It is a principal part expansion right view which shows typically one state of the fitting mechanism in the charging connector for vehicles which concerns on Embodiment 1. FIG. It is a principal part expansion left view which shows typically one state of the fitting mechanism in the charging connector for vehicles which concerns on Embodiment 1. FIG. It is a principal part expansion left view which shows typically another state of the fitting mechanism in the charging connector for vehicles which concerns on Embodiment 1. FIG. It is a principal part expanded left view which shows typically another state of the fitting mechanism in the charging connector for vehicles which concerns on Embodiment 1. FIG. It is a principal part enlarged top view typically shown in order to demonstrate the state of the slide switch in the vehicle charging connector which concerns on Embodiment 1, (A) shows the position of the slide switch in an initial state, (B) Indicates the position of the slide switch in the retracted position. It is a principal part expansion right view which shows typically the initial state of the fitting mechanism in the abnormal condition of the charging connector for vehicles which concerns on Embodiment 1. FIG. It is a principal part expansion right view which shows typically one state of the fitting mechanism in abnormality cancellation of the charging connector for vehicles which concerns on Embodiment 1. FIG. It is a principal part expansion right view which shows typically another state of the fitting mechanism in abnormality cancellation of the charging connector for vehicles which concerns on Embodiment 1. FIG. It is a principal part expansion right view which shows typically another state of the fitting mechanism in abnormality cancellation of the charging connector for vehicles which concerns on Embodiment 1. FIG.

  Embodiments of the present invention will be described with reference to the drawings. Here, a case where the apparatus including the storage battery is an electric vehicle (specifically, an electric vehicle) and the charging connector is a vehicle charging connector will be described as an example. Moreover, in the figure, the same code | symbol shows the same part.

(Embodiment 1)
A vehicle charging connector (hereinafter sometimes referred to simply as “charging connector”) 100 shown in FIG. 1 is connected to an electric vehicle inlet (vehicle side inlet) (not shown) to supply power to the storage battery of the electric vehicle. Used. The charging connector 100 is attached to the tip of a cable 200 extending from a charger (not shown), and is covered with a split aluminum alloy cover (right cover and left cover). The charging connector 100 includes an L-shaped main body portion 1, an insertion portion 2 provided at the tip of the main body portion 1, and a handle portion 3 formed on the back surface of the main body portion 1. The main body 1 includes a protruding portion 6 on the front end side (insertion portion 2 side), and a cable 200 is introduced from the rear end thereof. Then, a retaining hook 11 that is exposed to the outside from above the insertion portion 2 and engaged with the vehicle-side inlet is exposed. The retaining hook 11 constitutes a tip end portion of a first swing arm (described later) that is pivotally supported on the protrusion 6 by a shaft 13i. On the other hand, the upper part of the handle part 3 is provided with a slide switch 4 that swings the first swing arm to release the engagement of the retaining hook 11 with the vehicle side inlet. This charging connector 100 is characterized in that the shaft 13i can be removed even when the first swing arm becomes inoperable and the engagement between the retaining hook 11 and the vehicle side inlet cannot be released by the slide switch 4. Thus, the engagement is released and the charging connector 100 is pulled out of the vehicle side inlet. Hereinafter, the structure of the charging connector 100 having the configuration will be described in detail.

  The external structure of the charging connector 100 will be described mainly with reference to FIGS. The main body 1 is a part in which mechanical parts and mechanical parts of the charging connector 100 are stored, and includes a protruding part 6 protruding upward at an upper part of a cylindrical front end part. The projecting portion 6 is a gable-shaped portion formed by a bulging surface that is curved in a mountain shape and substantially triangular side surfaces along the curvature on both sides of the bulging surface. The bulging surface is formed by connecting a pair of inclined surfaces with a ridge line portion so that both sides in the axial direction at the cylindrical front end portion are low and the middle portion thereof is high, and the side surface is in the axial direction of the main body portion 1. Oppositely arranged in parallel in the orthogonal direction. A hole through which a shaft 13i that can be inserted and removed from the outside is inserted is formed in each side surface of the protruding portion 6. The shaft 13i is inserted so as to bridge the shaft 13i through the holes on both side surfaces, and the first swinging arm is pivotally supported. In the substantially triangular columnar space formed by the bulging surface and both side surfaces of the protrusion 6, A shaft hole portion 13o described later of one swing arm is accommodated.

  The insertion portion 2 is a portion that is inserted into the vehicle side inlet, and has a notch 41 that exposes the retaining hook 11 from the insertion portion (see FIG. 2).

  The handle portion 3 is C-shaped, and is formed such that one end side extends along the upper surface of the main body portion 1 and the other end side is connected to the rear end of the main body portion 1. A part of the slide switch 4 is disposed so as to be exposed on the upper surface of the handle portion 3, and an LED lamp 5 is embedded below the back surface of the handle portion 3.

  The internal structure of the charging connector 100 will be described with reference to FIGS. 3, 4 and 6 show the state where the left cover is removed, and FIGS. 5 and 7 show the state where the right cover is removed. In each figure, the state before the charging connector 100 is inserted into the vehicle inlet and fitted (initial state). Is shown. As shown in FIGS. 3 to 5, the main body 1 is provided with a cable 200 and stores mechanical parts and mechanism parts to be described later. The insertion portion 2 stores a terminal (not shown), and the terminal is stored in the terminal case 70. Hereinafter, a fitting mechanism for fitting to the vehicle side inlet in the charging connector 100 will be described. The terminals are arranged in accordance with a standard such as JEVS G 105-1993, and the description thereof is omitted here.

  The charging connector 100 includes a first swing arm 10, a retaining hook 11, and a first urging member 12 (see FIGS. 4 and 6). The first swing arm 10 extends from the main body 1 side to the insertion portion 2 side, and has a shaft hole portion 13o through which a shaft 13i that can be inserted and removed from the outside of the main body portion 1 is inserted. It swings around the shaft hole 13o. The retaining hook 11 is provided in a front portion on the insertion portion 2 side from the shaft hole portion 13o (shaft 13i) of the first swing arm 10, and can protrude from the insertion portion 2. The first urging member 12 urges the first swing arm 10 so that the retaining hook 11 protrudes.

  In this example, the first oscillating arm 10 is a flat plate-like member, and a shaft hole portion 13o having a circular hole through which a round bar-shaped shaft 13i is inserted is formed in the middle portion in the longitudinal direction. The shaft 13i is swingably supported.

  The retaining hook 11 is provided at the distal end portion of the first swing arm 10, and the insertion portion is inserted from the notch 41 (see FIG. 2) formed in the insertion portion 2 by the swing of the first swing arm 10. 2 can protrude outward (upward) in the radial direction. The shape of the retaining hook 11 is a wedge shape having a sliding contact surface 11t that is inclined so that the thickness thereof becomes thinner toward the tip end side of the first swing arm 10. The place where the retaining hook 11 is disposed is a position corresponding to a recess provided on the inner peripheral surface of the vehicle-side inlet when the insertion portion 2 is securely inserted into the vehicle-side inlet. Further, the retaining hook 11 is arranged on the front side of the insertion portion 2 with respect to a projection portion 21 provided on a second swing arm 20 described later.

  The position of the central axis of the shaft hole portion 13o is on the protruding side of the retaining hook 11. Specifically, the central axis is located on the protruding side of the hook from the central line along the longitudinal direction that bisects the thickness of the flat plate portion other than the retaining hook 11 and the shaft hole portion 13o in the first swing arm 10. Is preferred. By positioning the shaft hole portion 13o on the projecting side of the retaining hook 11, when engaging with the concave portion of the vehicle-side inlet of the retaining hook 11, the retaining hook 11 can easily be applied to the concave portion and The stop hook 11 is difficult to inadvertently come out of the recess of the vehicle side inlet. In particular, it is preferable that the central axis of the shaft hole portion 13o and the tip of the retaining hook 11 are substantially in a straight line.

  In the rear part of the shaft hole portion 13o (shaft 13i) of the first swing arm 10, the pressing portion 15 to which one end of the first urging member 12 is pressed is radially inward (downward) from the shaft hole portion 13o. ) To be inclined toward the surface. Further, the rear portion of the pressing portion 15 is such that a part of a flat plate-like member extending in parallel with the longitudinal direction is bent in an L shape, and the rear end portion protrudes radially inward (downward) of the main body 1. Yes.

  On the other hand, as the shaft 13i inserted through the shaft hole portion 13o, an appropriate configuration can be used as long as it can be inserted and removed from the outside. For example, a combination of a female member in which a female screw is formed on at least one end of a rod-like body such as a cylinder or a cylinder and a male member such as a male screw that is screwed into the female screw can be used. However, it can be inserted / removed from the outside of the main body 1 but, for example, when a male screw is used for a male member, a general one having a single-letter or cross-shaped groove formed on the head so as not to be easily removed due to mischief. It is preferable to use a male screw in which a special groove is formed in the head, not a male screw. Specifically, it is an annular groove formed between a cylindrical member and an annular member surrounding the outer periphery of the cylindrical member, and an annular inner edge shape is a circle and an outer edge shape is a star shape or a polygonal shape.

  In this example, a torsion spring is used for the first biasing member 12 (see FIG. 4). Specifically, the torsion spring 12 is disposed concentrically with the shaft 13 i, one end of the torsion spring 12 is pressed against the upper surface of the pressing portion 15 of the first swing arm 10, and the other end is fixed to the main body portion 1. . The first swing arm 10 is urged in the direction of swinging (turning) so that the retaining hook 11 provided at the tip of the first swing arm 10 protrudes from the insertion portion 2. A torsion spring 12 is attached. The swing of the first swing arm 10 by the first biasing member 12 is allowed until the front portion of the first swing arm 10 contacts the inner peripheral surface of the main body 1.

  Further, in this example, a through portion 14 is formed at the center of the front portion of the first swing arm 10 (see FIGS. 4 and 5). In this example, a through portion 14 is formed at the center of the front portion of the first swing arm 10, and the through portion 14 is a through hole. In addition to the through hole, the through portion may be a notch in which a part of the front portion of the first swing arm 10 is notched.

  The charging connector 100 of this example includes a second swing arm 20, a protrusion 21, and a second urging member 22 (see FIGS. 5 and 7). The second swing arm 20 extends from the main body 1 side toward the insertion portion 2 and swings about a shaft 23 fixed to the main body 1. The projecting portion 21 is provided in a front portion of the second swing arm 20 on the insertion portion 2 side from the shaft 23 and can project from the boundary between the main body portion 1 and the insertion portion 2. The second urging member 22 urges the second swing arm 20 so that the protrusion 21 protrudes.

  In this example, the second swing arm 20 is a rod-shaped member, and a hole through which the shaft 23 is inserted is formed at the center, and is supported by the shaft 23 so as to be swingable. That is, the first swing arm 10 and the second swing arm 20 are supported by different shafts 13i and 23. The first swing arm 10 and the second swing arm 20 are arranged in parallel on the left and right. The protrusion 21 is provided at the distal end of the second swing arm 20 and can protrude radially outward (upward) of the insertion portion 2 from a notch 42 (see FIG. 2) formed in the insertion portion 2. It is. The protruding portion 21 is formed in a wedge shape having an inclined surface whose thickness decreases toward the distal end side of the second swing arm 20. The protrusion 21 is located at a position where it comes into contact with the periphery of the vehicle-side inlet when the insertion portion 2 is securely inserted into the vehicle-side inlet. On the other hand, the rear portion on the opposite side of the front portion of the second swing arm 20 across the shaft 23 is bent in an L shape, and the rear end portion protrudes radially inward (downward) of the main body 1. Yes.

  In this example, a torsion spring is used for the second urging member 22 (see FIG. 5). Specifically, the torsion spring 22 is disposed concentrically with the shaft 23, one end of the torsion spring 22 is fixed to the second swing arm 20, and the other end is fixed to the main body 1. Then, the second swing arm 20 is twisted so as to urge the second swing arm 20 in the swinging (turning) direction so that the protruding portion 21 provided at the tip of the second swing arm 20 protrudes from the insertion portion 2. A spring 22 is attached. Oscillation of the second oscillating arm 20 by the second urging member 22 is allowed until the front portion contacts the inner peripheral surface of the main body 1.

  Further, the charging connector 100 swings the first swing arm 10 in the direction opposite to the biasing direction by the first biasing member 12, and releases the engagement between the retaining hook 11 and the concave portion of the vehicle side inlet. A release member (here, slide bar 30) is provided. The slide bar 30 is parallel to the extending direction of the first swing arm 10 and extends further rearward than the rear portion opposite to the front portion of the first swing arm 10. It can slide in the direction. The slide bar 30 is in contact with the rear portion of the first swing arm 10 and pushes the first swing arm 10 in a direction opposite to the biasing direction by the first biasing member 12. 32.

  In this example, a pressing portion 32 is provided at the distal end portion of the slide bar 30, and the slide switch 4 is connected to the rear end portion on the opposite side. The pressing portion 32 is formed in a wedge shape having an inclined surface whose thickness decreases toward the distal end side of the slide rod 30 (see FIGS. 4 and 6). When the slide rod 30 (slide switch 4) advances toward the insertion portion 2 (forward), the pressing portion 32 contacts the rear end portion of the first swing arm 10 and the rear end of the first swing arm 10 By pushing up the part, the first swing arm 10 can be swung in the direction opposite to the biasing direction by the first biasing member 12. As a result, the retaining hook 11 is lowered and the retaining hook 11 is retracted from the insertion portion 2 to release the engagement between the retaining hook 11 and the concave portion of the vehicle side inlet.

  Further, in this example, a third urging member 31 that urges the slide bar 30 in the retreating direction is provided, and the slide bar 30 is abutted against the rear portion of the second swinging arm 20 to provide a third urging member. A stop portion 33 is provided to prevent retreat by 31.

  The stopper portion 33 is formed in a single piece protruding from the pressing portion 32 provided at the distal end portion of the slide rod 30 toward the second swing arm 20 side, and has an upper surface inclined toward the distal end side. (See FIGS. 5 and 7). When the slide bar 30 moves forward, the upper surface of the stopper 33 is inclined, so that the rear end of the second swing arm 20 can be pushed up and passed. As shown in FIGS. 5 and 7, the stopper 33 is held against the rear end of the second swing arm 20, so that the slide rod 30 can be prevented from being biased by the third biasing member 31. Retreat is prevented. That is, the slide rod 30 (slide switch 4) is fixed in a state of being slid (pushed) toward the second swing arm 20 side, that is, the insertion portion 2 side. When the insertion portion 2 is inserted into the vehicle-side inlet, the protrusion 21 provided at the tip of the second swing arm 20 is brought into contact with the periphery of the vehicle-side inlet and pushed into the second swing arm. The second swing arm 20 swings so that the rear end of the 20 moves up. As a result, the contact state between the contact portion 33 and the second swing arm 20 is released, and the slide rod 30 is retracted to the retreat limit by the urging force by the third urging member 31.

  Here, a compression spring is used for the third biasing member 31. Specifically, one end of the compression spring 31 is fixed to the support plate 43 fixed to the main body 1, and the other end is fixed to the slide switch 4. A compression spring 31 is attached so as to urge the slide rod 30 (slide switch 4) in the backward direction, that is, in the direction opposite to the insertion portion 2 side.

  Further, the charging connector 100 includes a solenoid 50. This solenoid 50 has a plunger 51. The plunger 51 is moved in one direction by an electromagnetic coil (not shown) built in when energized and driven, and the plunger 51 is moved by a spring (not shown) built in when not energized. Return to the original position. In this example, the solenoid 50 is arranged behind the first swing arm 10 and on the opposite side of the virtual extension of the second swing arm 20 with the slide bar 30 in between, and in parallel with the slide bar 30. (See FIGS. 4 and 5). Further, the plunger 51 moves toward the insertion portion 2 side in parallel with the extending direction of the first swing arm 10 (here, the horizontal direction). In the initial state, it is not energized. A connecting portion 52 is attached to the distal end of the plunger 51 in the moving direction, and a pressing piece 53 is provided at the distal end portion. The connecting portion 52 has a plate-like piece extending toward the moving direction of the plunger 51, and a bent portion that protrudes upward from the tip side of the plate-like piece and extends below the front portion of the first swing arm 10. (See FIGS. 4 and 6). A presser piece 53 extending toward the insertion portion 2 (the retaining hook 11) is provided at the distal end of the connecting portion 52 (see FIG. 6).

  When the solenoid 50 is not energized, that is, when the plunger 51 is in the original position, the presser piece 53 is located at a position facing the penetrating portion 14 formed in the front portion of the first swing arm 10 and is prevented from coming off. When the hook 11 is pushed in, the hook 11 is inserted into the penetrating portion 14 formed in the first swing arm 10 in a loosely fitted state. On the other hand, when the solenoid 50 is energized and the plunger 51 moves toward the insertion portion 2 with the retaining hook 11 protruding from the insertion portion 2, the presser piece 53 advances to the retaining hook 11 side, It is located at a position where it comes into contact with the lower surface of the front portion of the first swing arm 10 opposite to the side from which the retaining hook 11 protrudes. At this time, the presser piece 53 is displaced from the penetrating portion 14 formed in the first swing arm 10. Then, when the front portion of the first swing arm 10 abuts against the presser piece 53, the swing of the first swing arm 10 is restricted so that the retaining hook 11 is not retracted from the insertion portion 2. That is, the state where the retaining hook 11 protrudes from the insertion portion 2 is maintained.

  Next, a configuration for releasing the engagement when an abnormal situation occurs in which the engagement between the retaining hook 11 and the concave portion of the vehicle side inlet cannot be released by operating the slide switch 4 will be described. Here, description will be made assuming that the shaft 13i is removed from the shaft hole portion 13o.

  Of the inner peripheral surface of the protruding portion 6, the surface located on the insertion portion 2 side of the shaft hole portion 13o has a guide surface 60 that inclines inward of the main body portion 1 from the main body portion 1 side toward the insertion portion 2 side. (FIG. 3). By inclining the guide surface 60, the shaft hole portion 13o is moved along the guide surface 60 by the urging of the pressing portion 15 by the first urging member 12 and the charging connector 100 being pulled backward. The moving arm 10 can be guided forward and inward.

  Between the guide surface 60 on the insertion portion 2 side and the shaft hole portion 13o, there is a movement allowance that allows the shaft hole portion 13o to move toward the insertion portion 2 side (FIG. 3). This is to make it easier to guide the first swing arm 10 forward when the shaft 13i is removed from the shaft hole portion 13o. The movement allowance is set to such a distance that the presser piece 53 is inserted through the penetrating portion 14. By doing so, the through portion 14 of the first swing arm 10 can be moved to a position corresponding to the presser piece 53 in an operation of pulling out the charging connector 100 in an abnormal situation described later.

  Of the opening surface formed by the notch 41 in the insertion portion 2, the surface facing the tip of the first swing arm 10 has a guide surface 41g inclined in the same direction as the sliding contact surface 11t of the retaining hook 11 (see FIG. 3). By having the guide surface 41g together with the guide surface 60 and the movement allowance, the sliding contact surface 11t of the retaining hook 11 is brought into sliding contact with the guide surface 41g, and the distal end portion of the first swing arm 10 is inserted into the insertion portion 2. Can be guided radially inward. Accordingly, the presser piece 53 can be inserted through the through portion 14 of the first swing arm 10. Therefore, the guide surface 41g is preferably inclined so as to be substantially parallel to the sliding contact surface 11t of the retaining hook 11. Then, the sliding contact surface 11t of the retaining hook 11 can be easily brought into sliding contact with the guide surface 41g, and the distal end portion of the first swing arm 10 can be easily guided inward in the radial direction of the insertion portion 2.

  Next, the operation of the fitting mechanism in the operation of inserting the charging connector 100 into the vehicle-side inlet and the operation of pulling out from the vehicle-side inlet will be described in detail mainly with reference to FIGS.

  First, in an initial state before the insertion portion 2 is inserted, the retaining hook 11 and the projection portion 21 protrude from the insertion portion 2 by urging by the first urging member 12 and the second urging member 22 (FIG. 6, FIG. 7). In addition, the stopper 33 is stopped against the rear end of the second swing arm 20, so that the slide rod 30 is prevented from retreating against the urging by the third urging member 31. Therefore, the slide switch 4 connected to the rear end portion of the slide bar 30 is fixed in a state of being slid (pushed) to the insertion portion 2 side.

  Here, on the upper surface of the cover on which the slide switch 4 slides, a portion that is exposed when the slide switch 4 is pushed in and is not exposed when the slide switch 4 is retracted to the retreat limit is used for the display unit 45. (See FIGS. 4 and 5). For example, the display unit 45 is painted with a color different from the surroundings, so that the slide switch 4 is pushed in by the color, that is, the stopper 33 is held against the rear end of the second swing arm 20. Thus, it can be easily visually determined that the slide bar 30 is prevented from retracting (see FIG. 12A).

<Insert operation>
When the insertion portion 2 is inserted into the vehicle-side inlet, the retaining hook 11 first comes into contact with the inner peripheral surface of the vehicle-side inlet, and the retaining hook 11 is pushed against the urging by the first urging member 12. . Since the sliding contact surface 11t of the retaining hook 11 is inclined, even if it protrudes from the insertion portion 2, it can be easily inserted into the vehicle side inlet.

  Next, when the insertion portion 2 is inserted to the back of the vehicle side inlet, the projection portion 21 comes into contact with the periphery of the vehicle side inlet, and the projection portion 21 is pushed against the urging force of the second urging member 22 (see FIG. 8). Since the protruding portion 21 has an inclined surface, even if it protrudes from the insertion portion 2, it can be easily inserted until the main body portion 1 hits the vehicle-side inlet. Then, when the protruding portion 21 is pushed, the second swing arm 20 swings so that the rear end portion of the second swing arm 20 rises, so that the stopper 33 and the second swing arm 20 are moved. And the slide bar 30 is retracted to the retreat limit by the urging by the third urging member 31 (see FIGS. 8 and 9). At this time, the retaining hook 11 is positioned at a position corresponding to a recess provided on the inner peripheral surface of the vehicle-side inlet, and protrudes from the insertion portion 2 due to the biasing by the first biasing member 12. As a result, the retaining hook 11 is normally engaged and locked in the recess of the vehicle-side inlet, so that the charging connector 100 and the vehicle-side inlet are completely engaged. Thus, the operation for inserting the charging connector 100 into the vehicle-side inlet is completed. At this time, electrical connection between the terminals is also established between the charging connector 100 and the vehicle-side inlet.

  Here, on the upper surface of the slide switch 4, the portion that is not exposed when the slide switch 4 is pushed in and is exposed when the slide switch 4 is retracted to the retreat limit can be used for the display unit 46 ( (See FIGS. 4 and 5). For example, it is easy to visually indicate that the slide switch 4 (slide bar 30) has been retracted to the retreat limit depending on the character or color, for example, by displaying characters on the display unit 46 or painting a color different from the surroundings. (See FIG. 12B).

  Further, with the retaining hook 11 protruding and locked in the recess of the vehicle side inlet, the solenoid 50 is energized to drive the first swing arm below the front portion of the first swing arm 10. The presser piece 53 is advanced to a position shifted from the penetrating portion 14 formed in 10 (see FIG. 10). As a result, the front portion of the first swing arm 10 abuts against the presser piece 53, so that the swing of the first swing arm 10 is restricted with the retaining hook 11 protruding from the insertion portion 2. That is, the retaining hook 11 is locked. Therefore, the retaining hook 11 does not retract from the insertion portion 2, and the engagement between the retaining hook 11 and the concave portion of the vehicle side inlet can be reliably prevented from being released. In this example, the terminal case 70 is provided with a guide groove 54 (see FIG. 4) for horizontally guiding the plate-like piece of the connecting portion 52 that connects the plunger 51 and the presser piece 53 of the solenoid 50. Since the connecting part 52 can be moved along the line 54, it is easy to advance the presser piece 53 to an accurate position in the horizontal direction. Further, the LED lamp 5 (see FIG. 1) is lit while the solenoid 50 is energized.

  The start of energization of the solenoid 50 can be performed, for example, when power supply from the charger to the vehicle is started. Thereby, it is possible to reliably prevent the user from accidentally pulling out the charging connector 100 from the vehicle side inlet during power feeding, or the charging connector 100 from falling out of the vehicle side inlet.

<Pullout operation>
The energization to the solenoid 50 is stopped, and the presser piece 53 is returned to the original position (that is, below the through portion 14 formed in the first swing arm 10) (see FIG. 9). Thereby, the lock state of the retaining hook 11 is released. Stopping energization of the solenoid 50 can be performed, for example, when power supply from the charger to the vehicle is terminated.

  Next, the slide switch 4 is pushed into the insertion portion 2 side (forward) to advance the slide rod 30 and bring the pressing portion 32 into contact with the rear end portion of the first swing arm 10 (see FIG. 11). The pressing portion 32 abuts on the rear end portion of the first swing arm 10 and pushes up the rear end portion of the first swing arm 10, thereby moving the first swing arm 10 to the first biasing member 12. It is swung in the direction opposite to the biasing direction by. At this time, since the pressing portion 32 has an inclined surface, it is easy to push up the rear end portion of the first swing arm 10. Then, when the retaining hook 11 is lowered and the retaining hook 11 is retracted from the insertion portion 2 (see FIG. 11), the engagement state between the retaining hook 11 and the concave portion of the vehicle side inlet is released.

  In this state, by pulling out the charging connector 100 from the vehicle side inlet, the pulling out operation of the charging connector 100 from the vehicle side inlet is completed. After completion of the pulling-out operation, the slide bar 30 is retracted by the urging force of the third urging member 31 until the abutment portion 33 is stopped against the rear end portion of the second swing arm 20, and the initial position is reached. Return to (see FIGS. 6 and 7).

  Next, due to breakage of the slide rod 30 or the like, the first swing arm 10 malfunctions, and an abnormal situation occurs in which the engagement between the retaining hook 11 and the recess of the vehicle side inlet cannot be released by operating the slide switch 4. The coping procedure and operation of each part will be described. In this abnormal situation, when the solenoid 50 operates normally and the presser piece 53 can be moved to a position corresponding to the penetrating portion 14 (when the solenoid is activated), the solenoid 50 does not operate normally and the presser piece 53 There is a case where it cannot move to the position corresponding to the through portion 14 (when the solenoid is not operated). Hereinafter, the solenoid operation and non-operation will be sequentially described.

<When solenoid is activated>
First, the shaft 13i is removed from the shaft hole 13o. Then, the fixing of the first swing arm 10 to the main body 1 is released. At this time, since the first swing arm 10 is not pivotally supported by the shaft 13i, the first urging member 12 pushes the pressing portion 15 to remove the first swing arm 10 from the side where the retaining hook 11 protrudes. Move to. At this time, the first urging member pushes the inclined pressing portion 15, so that the first swing arm 10 moves forward inward rather than directly below. Even at this time, since the presser piece 53 retracted to the slide switch 4 side by the solenoid 50 is arranged at a position corresponding to the penetrating part 14, the presser piece 53 is inserted into the penetrating part 14 of the first swing arm 10. The retaining hook 11 is retracted from the insertion portion 2. That is, the engagement state between the retaining hook 11 and the concave portion of the vehicle side inlet is released. In this state, by pulling out the charging connector 100, the pulling-out operation of the charging connector 100 from the vehicle side inlet is completed.

<When solenoid is not activated>
The procedure of the engagement state of the retaining hook 11 and the operation of each part when the solenoid is not operated will be described with reference to FIGS. FIGS. 13 to 16 show a state in which the right cover is removed, and for convenience of explanation, the second swing arm is omitted and the vicinity of the concave portion of the vehicle-side inlet 300 is shown.

  In the state where the solenoid 50 cannot return the presser piece 53 to the original position and the front portion of the first swing arm 10 is in contact with the presser piece 53 (FIG. 13), The shaft 13i inserted through the shaft hole 13o is removed. Then, as described above, the fixing of the shaft hole portion 13o is released, and the first swinging arm 10 is moved by pressing the pressing portion 15 in which the first urging member 12 is inclined. At this time, since the front portion of the first swing arm 10 is in contact with the presser piece 53, it advances not to the front inward side of the main body portion 1 but to the insertion portion 2 side (forward) and slides on the presser piece 53. To do. Next, the charging connector 100 is pulled to the rear side of the main body 1. At this time, there is a movement allowance between the shaft hole portion 13o and the guide surface 60, the retaining hook 11 engages (contacts) with the concave portion of the vehicle side inlet 300, and the front of the first swing arm 10 The portion is in contact with the presser piece 53. Therefore, the first swing arm 10 relatively slides on the presser piece 53 and moves forward. (FIG. 14). By the relative movement of the first swing arm 10, the penetrating portion 14 of the first swing arm 10 moves to a position corresponding to the presser piece 53. At the same time, the shaft hole portion 13o contacts the guide surface 60, and the tip of the retaining hook 11 contacts the opening surface of the notch 41 of the insertion portion 2. Then, the shaft hole portion 13o is guided to the guide surface 60, and the sliding contact surface 11t of the retaining hook 11 is along the inclination of the guide surface 41g, so that the first swing arm 10 moves forward and inward. At this time, if the guide surface 41g of the insertion portion is inclined in the same direction as the sliding contact surface 11t at the tip of the retaining hook 11, the sliding contact surface 11t of the retaining hook 11 is made to follow the inclination of the guide surface 41g. easy. As a result, the presser piece 53 is inserted into the penetrating portion 14. Accordingly, the retaining hook 11 is lowered and retracted from the insertion portion 2 (FIG. 15), and the engagement state between the retaining hook 11 and the concave portion of the vehicle side inlet 300 is released. In this state, by pulling out the charging connector 100 from the vehicle-side inlet 300, the pulling-out operation of the charging connector 100 from the vehicle-side inlet 300 is completed (FIG. 16).

  The charging connector 100 according to Embodiment 1 described above has the following effects.

  When the solenoid 51 is returned to the original position by the solenoid 50, it does not operate normally due to a malfunction such as the slide rod 30 being damaged, and the engagement state between the retaining hook 11 and the concave portion of the vehicle side inlet cannot be released. When a situation occurs, the shaft 13i can be removed from the shaft hole portion 13o to release the first swing arm 10 from being fixed to the main body portion 1. Therefore, the engagement between the retaining hook 11 and the vehicle side inlet The combined state can be released. Therefore, even if an abnormal situation occurs, the vehicle charging connector can be pulled out from the vehicle-side inlet without being disassembled or destroyed.

  Furthermore, even when an abnormal situation occurs in which the plunger 51 cannot be returned to the original position by the solenoid 50 and the engagement state of the retaining hook 11 with the vehicle side inlet cannot be released, the shaft 13i is removed from the shaft hole 13o. By pulling the charging connector 100 from the vehicle side inlet, the engagement state between the retaining hook 11 and the concave portion of the vehicle side inlet can be released. Therefore, even if an abnormal situation occurs, the vehicle charging connector can be pulled out from the vehicle-side inlet without being disassembled or destroyed.

  In addition, there is provided a second swinging arm 20 provided with a protrusion 21 that can project from the boundary between the main body 1 and the insertion portion 2, and when the insertion portion 2 is inserted deep into the vehicle side inlet, (Slide switch 4) retracts to the retract limit. Therefore, it can be confirmed whether or not the insertion into the vehicle-side inlet has been performed reliably depending on whether or not the slide rod 30 (slide switch 4) has been retracted to the retreat limit. Therefore, even an unfamiliar user can confirm the state of the slide rod 30 (slide switch 4), so that it can be securely inserted into the vehicle side inlet, and the charging connector 100 can be connected to the vehicle side inlet. A state where the fitting is incomplete (half-fitted state) can be prevented. In addition, by providing the display units 45 and 46, the user can easily determine that the slide bar 30 (slide switch 4) has been retracted to the retreat limit, and the insertion into the vehicle side inlet is reliably performed. It can be easily confirmed whether or not.

  Insertion operation into the vehicle-side inlet may be an operation of simply inserting the insertion portion 2 of the charging connector 100 into the vehicle-side inlet. Compared to the charging connector (insertion + holding the lever) described in Patent Document 1 described above, Intuitive and easy to operate. In addition, the internal structure (fitting mechanism) of the charging connector 100 has a simple structure with a small number of parts, so it is highly reliable, and can be reduced in size, facilitated maintenance, and reduced in cost. Furthermore, by arranging the slide switch 4 on the upper surface of the handle portion 3, the pulling operation from the vehicle side inlet can be performed with one hand.

  Furthermore, the retaining piece 53 is advanced by the solenoid 50 below the front portion of the first swing arm 10 to directly prevent the retaining hook 11 from being retracted from the insertion portion 2. Therefore, even if a problem such as an impact, vibration, or damage to the first biasing member 12 that causes the retaining hook 11 to protrude occurs, the retaining hook 11 does not retract, and the recesses between the retaining hook 11 and the vehicle side inlet It is possible to reliably prevent the engaged state from being released. On the other hand, in the charging connector described in Patent Document 1, the engagement state between the retaining hook and the concave portion of the vehicle side inlet is released by locking the release lever and prohibiting the operation of the release lever. This is indirectly prevented. For this reason, when a trouble such as impact, vibration, or damage to the biasing member that protrudes the retaining hook occurs, such as when the retaining hook is retracted, regardless of the operation of the release lever, the retaining hook and the vehicle side inlet It is impossible to reliably prevent the engagement state with the recess from being released.

  Further, the solenoid 50 is disposed behind the first swing arm 10 and the plunger 51 moves in the horizontal direction toward the insertion portion 2 so that the presser piece 53 is positioned below the front portion of the first swing arm 10. It is easy to secure the installation space for the solenoid 50 by adopting the configuration to advance.

  In the above-described embodiment, the case where the charging connector of the present invention is applied to the vehicle charging connector and connected to the vehicle-side inlet to supply power to the vehicle storage battery has been described as an example. In addition, for example, an inlet of a power storage device mounted on a moving body such as a ship other than a vehicle, a submersible craft, or an aircraft, or an inlet of a power storage device installed in a home, a building, a factory, or the like is the same as the vehicle-side inlet described above. The present invention can also be applied to a shape having a recess on the inner peripheral surface of the inlet.

  The present invention is not limited to the above-described embodiment, and can be modified as appropriate without departing from the gist of the present invention. For example, the forms of the first swing arm, the second swing arm, and the slide bar can be changed as appropriate. The first urging member, the second urging member, and the third urging member are not limited to the torsion spring and the compression spring, and may be rubber, for example, and the type of the spring can be changed as appropriate. When changing the type of the spring, the arrangement of the spring may be appropriately changed according to the purpose.

  INDUSTRIAL APPLICABILITY The present invention can be used for a charging connector for connecting to an inlet of a device including a storage battery and supplying power to the storage battery of the device, and can be suitably used for, for example, a charger for an electric vehicle.

100 Vehicle charging connector (charging connector) 300 Vehicle inlet
200 cables
1 Body 2 Insert 3 Handle 4 Slide switch
5 LED lamp 6 Projection
10 First swing arm
11 Retaining hook 11t Sliding contact surface 12 First biasing member (torsion spring)
13i Shaft 13o Shaft hole 14 Through part 15 Pushing part
20 Second swing arm
21 Projection 22 Second biasing member (torsion spring) 23 Shaft
30 Slide bar (release member)
31 Third biasing member (compression spring)
32 Pushing part 33 Stopping part
41,42 Notch 41g Guide surface 43 Support plate 45,46 Display
50 solenoid
51 Plunger 52 Connecting part 53 Presser piece 54 Guide groove
60 Guide surface
70 Terminal case

Claims (5)

A charging connector for connecting to an inlet of a device including a storage battery and supplying power to the storage battery of the device,
The main body,
An insertion portion provided on a distal end side of the main body portion and inserted into the inlet;
A first shaft that extends from the main body portion side to the insertion portion side and has a shaft hole portion through which a shaft that can be inserted and removed from the outside of the main body portion is inserted, and swings around the shaft hole portion. A swing arm;
A retaining hook that is provided in a front portion of the first swing arm on the insertion portion side from the shaft hole portion and can protrude outward from the insertion portion;
When the shaft is inserted into the shaft hole, the first swing arm is biased so that the retaining hook protrudes, and when the shaft is removed from the shaft hole, A first urging member for urging the first swing arm in a direction opposite to the side from which the retaining hook protrudes;
When the shaft is inserted through the shaft hole portion, the first swing arm abuts against a rear portion opposite to the front portion, and the retaining hook projects from the first swing arm. And a release member having a pressing portion that swings in a direction opposite to the side. And a solenoid that has a plunger, moves the plunger in one direction when energized, and returns the plunger to its original position when de-energized;
In conjunction with the plunger, a presser piece that advances so as to come into contact with the surface of the front portion of the first swing arm that is opposite to the side on which the retaining hook protrudes,
A through portion is formed in a front portion of the first swing arm;
When the shaft is inserted through the shaft hole,
When the plunger is in the original position, the presser piece is positioned so as to face the penetrating portion, and when the plunger is moved, the presser piece comes into contact with the front portion of the first swing arm. Advance to
When the shaft is removed from the shaft hole portion,
The charging connector according to claim 1, wherein the presser piece is inserted into the penetrating portion in a loosely fitted state.   The charging connector according to claim 1, wherein a central axis of the shaft hole portion is located on a protruding side of the retaining hook. Of the inner peripheral surface of the main body part, the surface located on the insertion part side of the shaft hole part has a guide surface that inclines inward of the main body part from the main body part side toward the insertion part side,
The said guide hole and the said shaft hole part have a movement allowance which can move the said shaft hole part to the insertion part side, when the said shaft is extracted from the said shaft hole part. The charging connector according to any one of 1 to 3. The retaining hook has a sliding contact surface that is inclined so that the thickness becomes thinner toward the tip end side of the first swing arm,
The insertion portion has a notch that exposes the retaining hook from the insertion portion,
The surface facing the tip of the first swing arm among the opening surfaces formed in the insertion portion by the notch is a guide surface that is inclined in the same direction as the sliding contact surface. 5. The charging connector according to any one of 4 above.

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