JP2002084664A - Induction-type charging connector for electric vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an induction-type charging connector which does not have no risk of such pranks as pull off of terminals, throwing in of sand, water, etc., entry of rain water, dust, etc., ever if the connector is let alone outdoors over a long time, does not have directivity in insertion of a paddle into a socket, and prevents excessive force from being applied to a charging terminal and to its distributing wire, even if a charger and a vehicle get out of position. SOLUTION: This connector is composed of a charging terminal 12, which is connected to a charger being outside a vehicle and has a primary coil 11, and a charging receiving part 20 which has a secondary coil 22 and a socket 21, in which the charging terminal fits concentrically. The charging terminal 12 (or socket) is formed into a cylindrical shape, and the other is formed into a hollow cylindrical shape in which the cylindrical shape fits. Also the charging terminal 12 has a cylindrical core part 13 made of a magnetic substance, and on its periphery a primary coil 11 is wound cylindrically. The secondary coil 22 is a hollow cylindrical one, and this coil is arranged, so as to surround the charging terminal 12 inserted into the socket 21 with a gap between.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an inductive charging connector for charging an electric vehicle in a contactless manner.

[0002]

2. Description of the Related Art In order to reduce air pollution, attention has been paid to electric vehicles. The electric vehicle includes a rechargeable battery, and the power of the battery is used to drive the vehicle. The battery needs to be recharged according to power consumption, and at the time of this recharging, a charging connector that connects a power source installed on the ground to a battery of the electric vehicle is used.

[0003] In order to improve the performance of an electric vehicle such as load, running speed, running distance and the like, it is necessary to mount a battery having a sufficiently large capacity. Therefore, the charging connector is compatible with high power having a high charging speed. There is a need. Conventionally, there are a contact type (electrically-conductive type) that directly supplies electricity through a connector and an inductive type (inductive type) that supplies current without contact through a coil or the like. The induction type is promising in order to increase the charging speed and ensure high safety.

As an inductive charging connector for electric vehicles,
JP-A-7-240325, JP-A-11-273977
No., etc. have already been disclosed. JP-A-7-240325
As shown in FIG. 9, a charging transformer for an electric vehicle has a primary winding 1 and is connected to a fixed power supply. Transformer secondary winding 3 installed in the car to charge the vehicle
a, 3b, an inductive charging receiver comprising magnetic cores 4a, 4b, 4c to complete a magnetic circuit passing through the primary and secondary windings, and coupled to the transformer secondary winding. Cooling means 5a and 5b having fluid passages adjacent to the secondary winding for cooling the secondary winding of the lever transformer.

Japanese Patent Application Laid-Open No. 11-273977 discloses an "electromagnetic induction type non-contact power supply device for electric vehicles", as shown in FIG. 10, which includes a power supply coil for transmitting AC power and a power transmission side antenna for wireless communication. Power transmitting paddle 6 having a frame to be transmitted, a power receiving coil 7 for receiving power from the power feeding coil by electromagnetic induction, a power receiving side communication means 8 for wirelessly communicating with the power transmitting side antenna, and a paddle insertion hole 9a for inserting the power transmitting paddle. And a power receiving charge port 9 having the following.

[0006]

As described above, the conventional inductive charging connection device includes a power transmission paddle 6 shown in FIG.
As shown in FIG. 12, the power transmission paddle 6 is fixed to the electric vehicle side. The power transmission paddle 6 is inserted into a paddle insertion hole 9a (reception port) provided in the power reception charge port.
To perform electromagnetic induction connection.

However, such a conventional inductive charging connector for electric vehicles has the following problems. (1) Charging a battery of an electric vehicle requires a long time (for example, 4 to 8 hours). This charging is often performed at night. During this time, especially for outdoor charging,
It has to be left in the state shown in FIG. 12 for a long time, and the state is unprotected against mischief. For this reason, there is a risk of mischief such as removal of terminals, introduction of sand and water. (2) The lid of the receptacle is open during charging, and rainwater, dust, and the like may enter the rectangular gap between the receptacle 9a and the paddle 6 when left outdoors for a long time. (3) The receptacle 9a and the paddle 6 have a rectangular cross section, and it is necessary to insert the paddle 6 in the correct direction with respect to the receptacle 9a. Further, if the position of the charger and the position of the vehicle are displaced due to the directionality at the time of insertion, an excessive force is applied to the charger and its wiring, and the durability is reduced. (4) Since the receiving port 9a has a rectangular cross section, the power receiving charge port 9 has a rectangular cross section, so that when the power receiving charging port 9 is mounted on an electric vehicle, a wasteful space is easily formed and a compact design is not possible. (5) The handle of the paddle 6 needs to be formed separately from the wiring outlet, which increases the manufacturing cost.

The present invention has been made to solve the above-mentioned problems. That is, the purpose of the present invention is to
(1) Even if left outdoors for long periods of time, there is no danger of pulling out terminals, sand or water, or intrusion of rainwater, dust, etc. (2) Directivity of inserting paddle into receptacle There is no need to apply excessive force to the charger and its wiring even if the position of the charger and the position of the vehicle deviate. (3) When mounted on an electric vehicle, there is little wasted space and compact design is possible. (4) An object of the present invention is to provide an inductive charging connection device for an electric vehicle in which a handle portion of a paddle is formed integrally with an outlet of a wiring so that manufacturing cost can be reduced.

[0009]

According to the present invention, a charging terminal (12) connected to a charger outside a vehicle and having a primary winding (11), and a socket (2) fitted concentrically with the charging terminal.
Charging receiver (20) having 1) and a secondary winding (22)
Wherein one of the charging terminal (12) and the receiving port (21) is formed in a cylindrical shape, and the other is formed in a hollow cylindrical shape fitted with the cylindrical shape. An inductive charging connection for an automobile is provided.

According to the configuration of the present invention, the charging terminal (1)
2) (or the receiving port) is formed in a cylindrical shape, and the receiving port (2
1) Since (or the charging terminal) is also formed in a hollow cylindrical shape that fits concentrically, unlike the conventional paddle type, there is no direction at the time of insertion, and even if the position of the charger and the position of the receiving vehicle are shifted. In addition, no excessive force is applied to the charging terminal and its wiring, and the durability can be improved. In addition, since a cylindrical cross section is adopted for both the charging terminal and the receiving port, it can be designed compact without wasted space.

According to a preferred embodiment of the present invention, the charging terminal (12) has a cylindrical core (1) made of a magnetic material.
3), and the primary winding (1) is provided on the outer periphery of the cylindrical core portion.
1) is wound in a cylindrical shape, and the start and end of the primary winding are connected to a charger (31) outside the vehicle. According to this configuration, an external power source (for example, an AC power source of 100 V or 200 V) is used, an AC power source is added to the primary winding (11) via the charger (31), and the cylindrical core part ( 13) A strong alternating magnetic field passing through 13) can be formed.

The charging terminal (12) has a flange (14) that comes into contact with the outer peripheral surface of the receptacle (21), and the contact surface of the flange has a flexible seal rubber ( 15) is attached. With this configuration, the charging terminal (12)
When the seal rubber (15) is inserted into the receptacle (21), the seal rubber (15) comes into contact with the outer peripheral surface of the receptacle (21), and it is possible to prevent rainwater, dust and the like from entering between the rubber and the seal rubber.

Further, at the tip of the charging terminal (12),
It has a cone-shaped portion (17) whose maximum diameter is approximately equal to that of the primary winding (11) and gradually decreases in diameter toward the tip, thereby guiding the charging terminal concentrically when inserted into the receptacle. With this configuration, it is possible to automatically and concentrically guide and insert even if both cores are misaligned at the time of insertion.

The secondary winding (22) is a hollow cylindrical coil, and the coil is arranged so as to surround the charging terminal (12) inserted into the receptacle (21) with a space between the coil and the secondary winding. The start and end of the secondary winding are connected to a battery (33) to be charged via a rectifier circuit (32). With this configuration, a predetermined AC voltage is generated in the secondary winding (22) by the AC magnetic field generated by the primary winding (11),
This can be converted to DC through the rectifier circuit (32) to charge the battery (33).

The charging terminal (12) has a ring groove (16) concentric with the receiving port (21), and the charging receiving portion (20) has a charging terminal (20) inserted into the receiving port (21). A latch member (23) that can be fitted into the ring groove (16) of (12) is provided, and the latch member is configured to be able to release the fitting from inside the vehicle. According to this configuration, the ring groove (1) of the charging terminal (12) inserted into the receptacle (21).
When the latch member (23) is fitted into the charging terminal (6), the charging terminal (1) is engaged unless the latch member is released from the vehicle interior.
2) Unable to extract and prevent mischief such as sand and water input.

Further, a tip (23c) fitted into the ring groove (16) of the latch member (23) is engaged with the charging terminal (12) so as to urge the tip outward. Is provided with a tapered surface. With this configuration, the tip (2
By the engagement of the charging terminal (12) with the tapered surface of 3c),
When the charging terminal (12) is inserted, the leading end (23
The ring groove (16) can be smoothly inserted by urging c) outward, and the tip (23c) of the latch member can be smoothly fitted into the ring groove after the insertion.

A charging receiver (20) for guiding the charging terminal (12) with a cone-shaped power receiving side guide is provided at the front or rear of the vehicle, and the charging terminal (12) is held by a spring so as to be able to expand and contract. It is mounted horizontally on the charger. With this configuration, charging can be automatically started when the electric vehicle is parked while looking at the target provided on the charger.

Further, the vehicle has a marked line on the road surface leading to the charger so that the vehicle can be correctly guided toward the charger. With this configuration, by moving the vehicle along the marked line, the vehicle can be correctly guided toward the charger.

The receiving port (2) of the charging receiving section (20)
1) includes an electronic receiver lid (27) that opens and closes around a hinge (27b), and the electronic receiver lid is provided with a latch member (2).
3) has a latch hole (27a) that fits in the closed state at the tip (23c). With this configuration, when the electronic receiver lid (27) is closed, the distal end (23c) of the latch member (23) is fitted into the latch hole (27a), and the distal end is opened and closed by the open / close knob provided in the room. The receiving lid can be prevented from being opened from the outside unless it is pulled outward.

Further, the optical fiber (2) embedded along the center line of the charging terminal (12) and the charging receiving portion (20).
9) and an optical semiconductor (30) capable of exchanging information in a non-contact manner in a connected state.
Information on both sides of the receiving train, information for billing, etc. are exchanged between the charger and the vehicle. With this configuration, the start and end of charging by the optical fiber communication device (optical fiber 29, optical semiconductor 30, etc.), information on both sides of the receiving train, information for charging, etc. are contactlessly transmitted between the charger and the vehicle side. Can be exchanged.

[0021]

Preferred embodiments of the present invention will be described below with reference to the accompanying drawings. In each of the drawings, common portions are denoted by the same reference numerals, and redundant description is omitted. FIG. 1 is a circuit configuration diagram of the inductive charging connector of the present invention. As shown in this figure, the inductive charging connector 10 of the present invention comprises a charging terminal 12 having a primary winding 11 and a charging receiving part 20 having a secondary winding 22, which can be separated from both. It constitutes a transformer (transformer). Primary winding 1
1 is connected to a charger 31 outside the vehicle, and is connected to a charger 3 from an external power supply (for example, a commercial power supply of 100 V or 200 V AC power supply).
1, an AC power supply is added to the primary winding 11. The secondary winding 22 is connected via a rectifier circuit 32 to a battery 33 to be charged. With this configuration, an AC magnetic field generated by the primary winding 11 through a transformer including the primary winding 11 and the secondary winding 22
A predetermined AC voltage is generated in the secondary winding 22, and the AC voltage is converted into DC through the rectifier circuit 32 to charge the battery 33.

In FIG. 1, reference numeral 34 denotes a charge controller;
A vehicle controller 35 communicates data between the charge controller 34 and the vehicle controller 35 via an interface 36, and controls an external charger 3 according to the state of charge of the battery 33.
1 is controlled.

FIG. 2 shows a first embodiment of the inductive charging connector of the present invention.
FIG. 3 is a configuration diagram illustrating the embodiment in a connected state, and FIG. 3 is a configuration diagram illustrating the connecting device in a separated state. As shown in FIGS. 2 and 3, the charging terminal 12 is formed in a cylindrical shape, and the receiving port 21 is formed in a hollow cylindrical shape fitted with the charging terminal 12. The charging terminal 12 has a cylindrical core 13 made of a magnetic material, and the primary winding 11 is wound around the outer periphery of the cylindrical core 13 in a cylindrical shape. In addition, this 1
The start and end of the next winding 11 are connected to a charger 31 outside the vehicle as shown in FIG. 2 and 3, the receiving port 21 may be formed in a cylindrical shape, and the charging terminal 12 may be formed in a hollow cylindrical shape that fits into the cylindrical shape. Hereinafter, the examples of FIGS. 2 and 3 will be described in detail.

2 and 3, the charging terminal 12 further has a flange portion 14 that comes into contact with the outer peripheral surface 21a of the receptacle 21. A flexible sealing rubber 15 is attached to a contact surface 14a of the flange portion 14 in contact with the outer peripheral surface 21a in a ring shape surrounding the charging terminal 12, and the space therebetween is water-tightly sealed.

The secondary winding 22 is a hollow cylindrical coil, and this coil is connected to the charging terminal 12 inserted in the receptacle 21.
Are arranged so as to surround each other at a slight interval. The start and end of the secondary winding 22 are connected to a battery 33 to be charged via a rectifier circuit 32 as shown in FIG.

The charging terminal 12 has a ring groove 16 concentric with the receiving port 21. The ring groove 16 is formed in the handle portion 12a of the charging terminal 12, and is formed integrally with the wiring outlet.

Further, the tip of the charging terminal 12 has a maximum diameter of 1
It has a cone-shaped portion 17 which is almost equal to the secondary winding 11 and whose diameter gradually decreases toward the tip. Thereby, even if the two cores are misaligned at the time of insertion into the receptacle, they are automatically guided concentrically and inserted.

The charging receiving section 20 has a latch member 23 which can be fitted into the ring groove 16 of the charging terminal 12 inserted into the receiving port 21 (FIG. 2). This latch member 2
Reference numeral 3 is pivotally supported by a pin 24, and the ring groove side can be pulled outward (right side in the drawing) from inside the vehicle via a cable 25 to release the fitting. Also in this example,
The end 23b opposite to the ring groove is urged outward (to the right in the drawing) by the spring 26, and urges the tip 23c of the latch member 23 toward the ring groove. With this configuration, when the charging terminal 12 is inserted into the receiving port 21, the distal end portion 23 c is moved outward in the cylindrical portion of the charging terminal 12, and when the charging terminal 12 is inserted to a predetermined position, the ring groove of the charging terminal 12 is formed. The tip portion 23c of the latch member 23 can be fitted to 16 to prevent the latch member 23 from coming off.

Further, a tapered surface is provided at the tip 23c of the latch member 23 which fits into the ring groove 16 so as to engage with the charging terminal 12 and urge the tip outward. When the charging terminal 12 is inserted, the distal end 23c of the latch member is urged outward to smoothly insert the ring groove 16 when the charging terminal 12 is inserted, and the latch groove is latched into the ring groove after the insertion. The distal end portion 23c of the member is fitted smoothly.

FIG. 4 is a perspective view showing a receptacle of the inductive charging connector of the present invention. As shown in FIG.
The outer peripheral surface 21a of the first unit 1 is formed of a donut-shaped flat plate, and is in close contact with the seal rubber 15 to hermetically seal the space between the charging terminal 12 and the seal rubber 15. The receiving port 21 is provided with a lid 27 that can be opened and closed.
Is closed to prevent rainwater, dust and the like from entering.
In addition, it is preferable to provide the seal rubber 15 also on this lid.

FIG. 5 is a diagram showing a use state of the inductive charging connection device of the present invention. In this figure, (A) shows the positional relationship between the vehicle (electric vehicle) and the charger, and (B) shows the grip of the charging terminal 12.

According to the configuration of the present invention described above, the charging terminal 12 is formed in a cylindrical shape, and the receiving port 21 is also formed in a hollow cylindrical shape to be fitted with the charging terminal. Even when there is no directionality, even if the position of the charger and the position of the power receiving vehicle are shifted, no excessive force is applied to the charging terminal and its wiring, and the durability can be improved. In addition, since a cylindrical cross section is adopted for both the charging terminal and the receiving port, it can be designed compact without wasted space.

Further, an external power supply (for example, 100 V or 20 V)
Using an AC power supply (0 V), an AC power supply is applied to the primary winding 11 via the charger 31 to form a strong AC magnetic field passing through the cylindrical core 13 located at the center of the primary winding 11. Further, a predetermined AC voltage is generated in the secondary winding 22 by an AC magnetic field indicated by a broken line in FIG. 2 generated by the primary winding 11, which is converted into a direct current via the rectifier circuit 32 to charge the battery 33. be able to.

Further, when the charging terminal 12 is inserted into the receiving port 21, the sealing rubber 15 comes into contact with the outer peripheral surface of the receiving port 21 to prevent rainwater, dust, and the like from entering therebetween.

Further, the charging terminal 1 inserted into the receptacle 21
By fitting the latch member 23 into the second ring groove 16, the charging terminal 12 cannot be pulled out unless the latch member is released from the inside of the vehicle, and mischief such as sand or water can be prevented.

FIG. 6 shows a second embodiment of the inductive charging connector of the present invention.
It is another figure which shows the use condition of embodiment. In this figure, a power receiving portion 20 is provided at a rear portion (or a front portion) of a vehicle, and guides the charging terminal 12 with a cone-shaped power receiving side guide. The charging terminal 12 horizontally mounted on the charger,
It is horizontally and elastically held by a spring, and a wiring for charging is stored in the spring. The spring is set to be horizontal by the weight of the charging terminal 12. A car stop is provided in front of the charger to prevent the car from overrunning. Furthermore,
A marking line (not shown) is provided on a road surface leading to the charger so that the vehicle can be correctly guided toward the charger. With this configuration, when the electric vehicle is parked while looking at the target provided on the charger, charging is automatically started. In addition, by moving the vehicle along the marking line, the vehicle can be correctly guided toward the charger.

FIG. 7 shows a third embodiment of the inductive charging connector of the present invention.
It is a lineblock diagram showing a receptacle of an embodiment. In this embodiment, the receiving port 21 of the charging receiving section 20 has a hinge 27b.
An electronic receiver lid 27 (lid) is provided which opens and closes around the center. The electron receiving lid 27 has a latch hole 27a into which the tip 23c of the latch member 23 is fitted. In a state where the electronic receiver lid 27 is closed (in the figure, just before closing), the distal end portion 23c of the latch member 23 is fitted into the latch hole 27a, and the open / close knob provided in the room moves the distal end portion 23c outward. The receiving lid 27 cannot be opened from the outside without being pulled. Further, in this example, a spring 28 is provided to urge the electronic receiver lid 27 in the opening direction, and when the electronic receiver lid 27 is opened by the open / close knob, the electronic lid is automatically opened by the spring, so that the charging terminal 12 can be inserted immediately. I have.

FIG. 8 shows a fourth embodiment of the inductive charging connector according to the present invention.
It is a block diagram which shows embodiment in connection state. In this figure, 29 is an optical fiber and 30 is an optical semiconductor. That is, in this example, the optical fiber 29 is buried along the center line of the charging terminal 12 and the charging receiving portion 20, and can exchange information in a connected state without contact via the optical semiconductor 30. I have. With this configuration, the start and end of charging by the optical fiber communication device (optical fiber 29, optical semiconductor 30, etc.), information on both sides of the receiving train, information for charging, and the like are exchanged between the charger and the vehicle. It has become.

It should be noted that the present invention is not limited to the above-described embodiment, but can be variously modified without departing from the gist of the present invention.

[0040]

As described above, the inductive charging connection device for an electric vehicle according to the present invention has the following advantages. 1. Even when considering long-term charging outdoors, there is no intrusion of water or sand,
The structure is less susceptible to mischief such as pulling out on the way. 2. Since the charger is cylindrical, there is no direction at the time of insertion unlike the conventional paddle type. Even if the position of the charger and the position of the power receiving vehicle are shifted as shown in FIG. 5 (A), no excessive force is applied to the charger and its wiring, so that the durability is excellent. 3. As shown in FIG. 5B, the handle portion of the charger is formed integrally with the wiring outlet, so that the structure can be simplified and the cost can be reduced. 4. The adoption of a cylindrical cross section for both the charger and the receiver allows a compact design without wasted space.

Therefore, the inductive charging connection device for an electric vehicle according to the present invention can (1) be left outdoors for a long time,
There is no danger of removing the terminal, putting sand or water in, or invading rainwater or dust. (2) There is no direction in inserting the paddle into the receptacle, and the position of the charger and the position of the vehicle are misaligned. However, no excessive force is applied to the charger and its wiring,
(3) When mounted on an electric vehicle, it is possible to design compactly with little useless space, and (4) it is possible to reduce the manufacturing cost by molding the handle of the paddle integrally with the wiring outlet. Has excellent effects.

[Brief description of the drawings]

FIG. 1 is a circuit configuration diagram of an inductive charging connection device of the present invention.

FIG. 2 is a configuration diagram showing a first embodiment of the inductive charging connection device of the present invention in a connected state.

FIG. 3 is a configuration diagram showing a first embodiment of the inductive charging connection device of the present invention in a separated state.

FIG. 4 is a perspective view showing a receptacle of the inductive charging connection device of the present invention.

FIG. 5 is a diagram showing a use state of the inductive charging connection device of the present invention.

FIG. 6 is another diagram showing a use state of the second embodiment of the inductive charging connection device of the present invention.

FIG. 7 is a configuration diagram showing a receiving port of a third embodiment of the inductive charging connection device of the present invention.

FIG. 8 is a configuration diagram showing a fourth embodiment of the inductive charging connection device of the present invention in a connected state.

FIG. 9 is a configuration diagram of a conventional inductive charging connection device.

FIG. 10 is another configuration diagram of a conventional inductive charging connection device.

FIG. 11 is a schematic view of a power transmission paddle of a conventional inductive charging connection device.

FIG. 12 is a diagram showing a use state of a conventional inductive charging connection device.

[Explanation of symbols]

1 primary winding, 2 primary inductive charging coupler, 3a, 3b
Transformer secondary winding, 4a, 4b, 4c magnetic core, 5
a, 5b cooling means, 6 power transmission paddle, 7 power receiving coil, 8 power receiving side communication means, 9 power receiving charge port,
9a paddle insertion hole, 10 inductive charging connector, 11
Primary winding, 12 charging terminal, 13 cylindrical core, 14
Flange, 14a Contact surface, 15 Seal rubber, 16
Ring groove, 17 cone-shaped part, 20 charging receiving part, 2
DESCRIPTION OF SYMBOLS 1 Receiving port, 21a outer peripheral surface, 22 secondary winding, 23
Latch member, 24 pin, 25 cable, 26 spring, 27 lid (electronic receiving lid), 27a latch hole, 2
8 spring, 29 optical fiber, 30 optical semiconductor, 31
Charger, 32 Rectifier circuit, 33 Battery, 34 Charge controller, 35 Vehicle controller, 36 Interface

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 5G003 AA01 FA03 FA06 GB08 5H030 AA06 AS08 BB12 DD15 DD18 DD20 DD21 FF51 5H115 PC06 PG04 PI16 PO01 PO07 PO09 PO11 PO16

Claims (11)

[Claims] 1. A primary winding (1) connected to a charger outside the vehicle.
A charging terminal (12) having a receiving port (21) concentrically fitted with the charging terminal and a secondary winding (22); and a charging terminal (12) having a secondary winding (22). ) And the receptacle (21) are formed in a cylindrical shape, and the other is formed in a hollow cylindrical shape to be fitted with the cylindrical shape. 2. The charging terminal (12) has a cylindrical core portion (13) made of a magnetic material, and the primary winding (11) is wound around an outer periphery of the cylindrical core portion in a cylindrical shape. 2. The inductive charging connection for an electric vehicle according to claim 1, wherein the start and end of the primary winding are connected to a charger outside the vehicle. 3. The charging terminal (12) has a flange (14) in contact with the outer peripheral surface of the receptacle (21), and the contact surface of the flange has a flexible seal rubber ( 15. The inductive charging connection for an electric vehicle according to claim 2, wherein 15) is mounted. 4. The charging terminal (12) has a cone-shaped portion (17) at the tip end thereof, the maximum diameter of which is substantially equal to that of the primary winding (11), and the diameter of which gradually decreases toward the tip. The inductive charging connector for an electric vehicle according to claim 2, wherein the charging terminal is guided concentrically when the charging terminal is inserted into the charging terminal. 5. The secondary winding (22) is a hollow cylindrical coil, which is arranged so as to surround the charging terminal (12) inserted into the receptacle (21) at a distance,
2. The inductive charging connector for an electric vehicle according to claim 1, wherein the start and end of the secondary winding are connected to a battery (33) for charging via a rectifier circuit (32). 3. . 6. The charging terminal (12) has a ring groove (16) concentric with the receiving port (21), and the charging receiving portion (20) has a charging terminal (20) inserted into the receiving port (21). A latch member (23) that can be fitted into the ring groove (16) of (12), wherein the latch member is configured to be able to release the fitting from inside the vehicle.
4. The inductive charging connection for an electric vehicle according to claim 1. 7. A ring groove (1) of said latch member (23).
The tip (23c) fitted to (6) is provided with a tapered surface so as to engage with the charging terminal (12) and urge the tip outward. Item 7. An inductive charging connection device for an electric vehicle according to Item 6. 8. A charging terminal (1) with a cone-shaped power receiving side guide.
A charging receiver (20) for guiding 2) is provided at the front or rear part of the vehicle, and the charging terminal (12) is held by a spring so as to be able to expand and contract and is horizontally attached to the charger. The inductive charging connector for an electric vehicle according to claim 1. 9. The induction type for an electric vehicle according to claim 9, further comprising a marked line drawn on a road surface leading to the charger so that the vehicle can be correctly guided toward the charger. Charging connector. 10. A receiving port (21) of a charging receiving section (20).
Has an electronic receiver lid (27) that opens and closes around a hinge (27b), and the electronic receiver lid is provided with a latch member (23).
2. The inductive charging connection device for an electric vehicle according to claim 1, further comprising a latch hole (27 a) that fits in a closed state at a tip portion (23 c) of the charging device. 11. A charging terminal (12) and a charging receiving part (2).
Optical fiber (29) embedded along the centerline of 0)
And an optical semiconductor (30) capable of contactlessly exchanging information in a connected state, and exchanging the start and end of charging, the amount of electricity, information on both sides of the receiving train, information for charging, etc. between the charger and the vehicle. The inductive charging connector for an electric vehicle according to claim 1, wherein