JP2008251355A - Extension cable safety device for charging electric vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an extension cable safety device for charging an electric vehicle capable of restraining decrease of convenience and preventing use of electricity by a third person. <P>SOLUTION: The extension cable safety device for charging an electric vehicle has a power source cable 1 fixed by connecting one end section 1a with a power source 2a and having a connection terminal 1b capable of connecting the power source cable 1 to a vehicle-side connector (not illustrated) for charging an electric vehicle 3, and a cable storage mechanism 10 for storing the power source cable 1. The cable storage mechanism 10 has a rotary body 11 capable of storing by winding the power source cable 1, a locking mechanism 12 for locking rotation of the rotary body 11, an identification number input unit 13 in which an identification number 14 is entered, and an identification number comparison device 17 for comparing the entered identification number 14 and preregistered identification number 16. When both identification numbers 14 and 16 are coincided with each other by the comparison device 17, the locking mechanism 12 releases fixing of the rotary body 11. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an extension cable safety device for charging an electric vehicle.

  In recent years, from the viewpoint of environment and energy, as an alternative to automobiles equipped with an internal combustion engine that burns and drives fuel such as gasoline, electric cars equipped with motors driven by electricity and hybrid cars using these in combination have been developed. ing.

  The electric vehicle is designed to be rechargeable from a household power source (a power source widely used in general households) in order to promote the spread. However, from the viewpoint of safety during handling such as charging (for example, avoidance of contact with conductive materials, inability to pull out during charging, etc.), a connector for charging an electric vehicle as a dedicated connector on the electric vehicle side in the power cable (For example, refer to Patent Document 1) and the like have been developed.

  There are parking lots adjacent to buildings in houses. When charging a battery mounted on an electric vehicle while parked in such a parking lot, an extension cord (power source) is used to connect the outlet of the household power supply and the vehicle-side connector provided on the electric vehicle. It is considered to connect using a code).

Japanese Patent No. 2910504

  Although it is possible to charge the battery mounted on the electric vehicle by using the power cable having the dedicated connector described above, from the viewpoint of convenience, the outlet for the household power supply is arranged outside the building. There is a possibility that an extension cable is connected to the outlet of the household power supply, and even a third party unrelated to the resident of the building can easily use electricity using the extension cable.

  In addition, while providing a cover to cover the outlet of the household power supply located outside the building and locking this cover, it is possible to prevent the use of electricity by a third party, but the convenience is impaired End up.

  Therefore, the present invention has been proposed in view of the above-described problems, and provides an extension cable safety device for charging an electric vehicle that can suppress a decrease in convenience and prevent the use of electricity by a third party. Objective.

  In the extension cable safety device for charging an electric vehicle according to the first invention for solving the above-described problem, one end is connected and fixed to a power source, and the other end is a vehicle-side connector for charging the electric vehicle. A power cable provided with a connectable connection terminal; and a cable storage mechanism for storing the power cable, wherein the cable storage mechanism stores a rotating body capable of storing the power cable, and rotates the rotating body. A fixing means for fixing; an identification number input means for inputting an identification number; and a matching means for comparing the input identification number with a previously registered identification number, wherein the fixing means is the matching means. When the two identification numbers coincide with each other, the fixing of the rotating body is released.

  An extension cable safety device for charging an electric vehicle according to a second invention that solves the above-described problem is an extension cable safety device for charging an electric vehicle according to the first invention, wherein the cable storage mechanism connects the power cable. Voltage detecting means for detecting a voltage of flowing electricity is provided, and the fixing means fixes the rotation of the rotating body when a predetermined voltage is detected by the voltage detecting means.

  An extension cable safety device for charging an electric vehicle according to a third invention for solving the above-described problem is an extension cable safety device for charging an electric vehicle according to the first invention or the second invention, wherein the cable storage mechanism is , Further comprising connection terminal storage detection means for detecting storage of the connection terminal of the power cable, and when the fixing means detects storage of the connection terminal of the power cable in the connection terminal storage detection means, The rotation of the rotating body is fixed.

  An extension cable safety device for charging an electric vehicle according to a fourth invention for solving the above-described problem is an extension cable safety device for charging an electric vehicle according to any one of the first to third inventions, The identification number input means is characterized in that the identification number is input by a signal transmitted from a transmitter built in the key of the electric vehicle.

  According to the extension cable safety device for charging an electric vehicle according to the present invention, a connection terminal having one end connected and fixed to a power source and the other end connectable to a vehicle-side connector for charging an electric vehicle is provided. A power storage cable that is provided; and a cable storage mechanism that stores the power cable, the cable storage mechanism including a rotating body that can store the power cable, and a fixing unit that fixes rotation of the rotating body; An identification number input means for inputting an identification number; and a collation means for collating the inputted identification number with an identification number registered in advance. If the IDs coincide with each other, the fixing means is released so that the fixing means is in a fixed state when the identification number verification result is different, and the power cable cannot be pulled out. Made, it is possible to prevent unauthorized use of the extension cable for an electric vehicle charging by a third party. Further, when the collation of the identification numbers matches, the fixing means releases the fixing of the rotating body, so that the power cable can be easily pulled out and stored, and the handleability can be improved.

  According to the extension cable safety device for charging an electric vehicle according to the present invention, the cable storage mechanism has voltage detection means for detecting a voltage of electricity flowing through the power cable, and the fixing means is connected to the voltage detection means. When a predetermined voltage is detected, the rotation of the rotating body is fixed to connect the power cable to the vehicle-side connector of the electric vehicle and charge the battery mounted on the electric vehicle. The storage of the power cable due to the release of the body can be prevented, and the handling and safety of the power cable can be improved.

  According to the extension cable safety device for charging an electric vehicle according to the present invention, the cable storage mechanism further includes connection terminal storage detection means for detecting storage of the connection terminal of the power cable, and the fixing means includes the connection When the storage of the connection terminal of the power cable is detected by the terminal storage detection means, by fixing the rotation of the rotating body, the rotating body is automatically stored only by storing the connection terminal of the power cable in a predetermined position. Since the power cable cannot be pulled out, it is possible to more reliably prevent the use of the extension cable for charging the electric vehicle by a third party, and the handling property can be further improved.

  According to the extension cable safety device for charging an electric vehicle according to the present invention, the identification number input means inputs an identification number by a signal transmitted from a transmitter built in a key of the electric vehicle, so that the operation can be performed. It is simple and the handling property can be further improved. Moreover, the terminal part connected to a vehicle can be simplified by providing an identification number input means in a cable storage mechanism.

The best mode for carrying out the extension cable safety device for charging an electric vehicle according to the present invention will be specifically described below with reference to the drawings.
FIG. 1 is a view for explaining an extension cable safety device for charging an electric vehicle according to the best mode of the present invention, and FIG. 2 is a view schematically showing a lock mechanism included in the extension device. FIG. 3 is a diagram showing a processing flow in the cable storage mechanism included therein.

  As shown in FIG. 1, an extension cable safety device for charging an electric vehicle according to the best mode of the present invention is fixed by connecting one end 1a to a power source 2a provided on an outer wall 2 of a building such as a house. A power cable 1 provided with a connection terminal 1b that can be connected to a vehicle-side connector (not shown) of a charging device for a battery mounted on the electric vehicle 3 at the other end, and the power cable 1 is wound up And a cable storage mechanism 10 for storing.

  As shown in FIGS. 1 and 2, the cable storage mechanism 10 includes a rotating body (drum) 11 that can wind and store the power cable 1, and a lock mechanism 12 that is a fixing unit that fixes the rotation of the rotating body 11. Have The cable storage mechanism 10 is an identification number input device (identification number input means) 13 to which an identification number 14 is input, and a storage means for storing the identification number 16 that has been registered in advance by entering the identification number. A memory 15 and an identification number collator (collation unit) 17 for collating the input identification number 14 with the registered identification number 16 are included. The lock mechanism 12 releases the fixing of the rotating body 11 when both the identification numbers 14 and 16 match in the collator 17. The lock mechanism 12 is movable only in the axial direction as indicated by an arrow in the figure, and a shaft body 18 provided with a concave and convex engaging portion 18 a at one end is provided with a concave and convex shape provided at one end of the rotating body 11. The rotation of the rotating body 11 is fixed by being locked to the locked portion 11a.

  As shown in FIG. 1, the identification number 14 described above is incorporated in a key 30 of the electric vehicle 3, and an identification number transmitter 31 to which a non-contact automatic recognition technology (RFID: Radio Frequency Identification) using radio waves is applied. May be directly input by providing a numeric input button or the like on the cable storage mechanism 10, or an operation of the key 30 of the electric vehicle 3 may be input.

  The cable storage mechanism 10 includes a voltage detector (voltage detection means) 19 that detects the voltage of electricity flowing through the power cable 1 and a connection terminal storage detector (connection terminal storage detection) that detects storage of the connection terminal 1b of the power cable 1. Means) 20 is further included.

  In the cable storage mechanism 10 described above, the rotating body 11 is fixed, and when the predetermined condition is satisfied, the rotating body 11 can be rotated, and the power cable 1 wound around and stored in the rotating body 11 is pulled out (winding). Can be put out). Specifically, the cable storage mechanism 10 operates according to the flow shown in FIG.

  As shown in FIG. 3, first, in step S1, it is determined whether or not the identification number 14 is input from the remote control key 30 or the input device. When the identification number 14 is input to the identification number input device 13, the process proceeds to step S2, and when the identification number 14 is not input, the process proceeds to step S3.

  Subsequently, in step S2, the input identification number 14 is compared with the identification number 16 registered in advance in the memory 15. If both identification numbers 14 and 16 match, the process proceeds to step S4. If both identification numbers 14 and 16 do not match, the process returns to step S1.

  In step S3, it is determined whether or not the key 30 has been operated. If the key 30 is operated, the process proceeds to step S4. If the key 30 is not operated, the process returns to step S1.

  In step S4, the lock mechanism 12 moves the shaft body 18 in the axial direction, releases the engagement between the engaging portion 18a and the engaged portion 11a, and can pull out (unwind) the power cable 1. It becomes. The power cable 1 is pulled out, and one end 1b of the power cable 1 is connected to a vehicle-side connector (not shown) of the electric vehicle.

  Then, it progresses to step S5 and the presence or absence of the charge start of the battery (not shown) mounted in the electric vehicle 3 is determined. If the voltage detector 19 detects the voltage and charging is started, the process proceeds to step S6. If the voltage detector 19 does not detect the voltage and charging is not started, the process proceeds to step S7.

  In step S6, the lock mechanism 12 moves the shaft body 18 in the axial direction, the engaging portion 18a and the engaged portion 11a engage to fix the rotating body 11, and the power cable 1 is stored (wound). The process proceeds to step S9. As a result, it is possible to prevent the power cable 1 from being disconnected during charging.

  In step S7, it is determined whether or not a predetermined time has elapsed since the fixing of the power cable 1 is released. If the predetermined time has not elapsed, the process returns to step S4. If the predetermined time has elapsed, the process proceeds to step S8.

  In step S8, the lock mechanism 12 moves the shaft body 18 in the axial direction, the engaging portion 18a and the engaged portion 11a engage to fix the rotating body 11, and the power cable 1 cannot be pulled out. It becomes possible to return to step S1.

  In step S9, it is determined whether or not charging of the battery is completed. If the voltage detector 19 does not detect the voltage and charging is completed, the process proceeds to step S10. If the voltage is detected by the voltage detector 19 and charging is not completed, the process returns to step S6.

  In step S10, the lock mechanism 12 moves the shaft body 18 in the axial direction, releases the engagement between the engaging portion 18a and the engaged portion 11a, and can pull out (unwind) the power cable 1. Then, the process proceeds to step S11.

  In step S11, it is determined whether the power cable 1 is stored. When the connection terminal storage detector 20 detects the storage of the power cable 1, the lock mechanism 12 proceeds to step S12, and when the connection terminal storage detector 20 does not detect the storage of the power cable 1, that is, the power cable. If the storing of 1 is not completed, the process returns to step S10.

  In step S12, the lock mechanism 12 moves the shaft body 18 in the axial direction, the engaging portion 18a and the engaged portion 11a engage to fix the rotating body 11, and the power cable 1 cannot be pulled out. It becomes possible and ends.

  Therefore, according to the extension cable safety device for charging an electric vehicle according to the best embodiment of the present invention, the lock mechanism 12 rotates when the identification results of the identification numbers 14 and 16 are different except in the case of key operation. Since the body 11 is fixed and the power cord 1 cannot be pulled out, unauthorized use of the extension cable for charging the electric vehicle by a third party can be prevented. In addition, since the lock mechanism 12 releases the fixing of the rotating body 11 when the collation results of the identification numbers 14 and 16 match, the power cable 1 can be easily pulled out and stored, thereby improving handling. Can be improved.

  When the cable storage mechanism 10 has a voltage detector 19 and the lock mechanism 12 detects a predetermined voltage by the voltage detector 19, the rotation of the rotating body 11 is fixed, whereby the power cable 1 is electrically connected. When the battery mounted on the electric vehicle 3 is charged by being connected to the vehicle-side connector of the vehicle, it is possible to prevent the storage of the power cable 1 due to the release of the fixing of the rotating body 11, and the handleability of the power cable 1 can be prevented. And safety can be improved.

  The cable storage mechanism 10 further includes a connection terminal storage detector 20 that detects storage of the connection terminal of the power cable 1, and the lock mechanism 12 stores the connection terminal of the power cable 1 using the connection terminal storage detector 20. If detected, by fixing the rotation of the rotating body 11, the rotating body 11 is automatically fixed only by storing the connection terminal of the power cable in a predetermined position, and the power cable 1 cannot be pulled out. Therefore, the use of the extension cable for charging the electric vehicle by a third party can be prevented more reliably, and the handleability can be improved.

  When the identification number input device 13 receives the identification number from the signal 14 transmitted from the identification number transmitter 31 incorporated in the key 30 of the electric vehicle 3, the operation is simple and the handling is further improved. be able to. Moreover, the terminal part connected to the vehicle 3 can be simplified by providing the identification number input device 13 in the cable storage mechanism 10.

  In the above description, the power cable 1 is described using the extension cable safety device for charging an electric vehicle fixed to the power source 2a provided on the outer wall 2 of the building. It may be an extension cable safety device for charging an electric vehicle fixed to a power source provided in the standing structure, and even such an extension cable for charging an electric vehicle according to the above-described best embodiment of the present invention. It has the same effect as the extension cable safety device for charging an electric vehicle.

It is a figure for demonstrating the extension cable safety device for electric vehicle charging which concerns on best embodiment of this invention. It is a figure which shows typically the locking mechanism with which the extension cable safety device for electric vehicle charging which concerns on the best embodiment of this invention comprises. It is a figure which shows the processing flow in the cable storage mechanism with which the extension cable safety device for electric vehicle charging which concerns on the best embodiment of this invention comprises.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Power cable 2 Building outer wall 10 Cable storage mechanism 11 Rotating body 12 Locking mechanism 13 Identification number input device 14 Input identification number 15 Memory 16 Registered identification number 17 Identification number collator 18 Shaft body 19 Voltage detector 20 Connection Terminal storage detector 30 Key 31 Identification number transmitter

Claims (4)

A power cable provided with a connection terminal that can be connected to a vehicle-side connector for charging an electric vehicle, with one end connected to a power source and fixed;
A cable storage mechanism for storing the power cable;
The cable storage mechanism includes a rotating body capable of storing the power cable;
Fixing means for fixing rotation of the rotating body;
An identification number input means for inputting an identification number;
Collating means for collating the input identification number with an identification number registered in advance,
The extension device for an electric vehicle charging cable safety device, wherein the fixing means releases the fixing of the rotating body when both the identification numbers match in the collating means. An extension cable safety device for charging an electric vehicle according to claim 1,
The cable storage mechanism has voltage detection means for detecting a voltage of electricity flowing through the power cable,
The extension means for an electric vehicle charging cable safety device, wherein the fixing means fixes the rotation of the rotating body when a predetermined voltage is detected by the voltage detecting means. An extension cable safety device for charging an electric vehicle according to claim 1 or 2,
The cable storage mechanism further includes connection terminal storage detection means for detecting storage of the connection terminal of the power cable,
The electric vehicle charging extension cable safety device, wherein the fixing means fixes the rotation of the rotating body when the connection terminal storage detecting means detects the storage of the connection terminal of the power cable. An extension cable safety device for charging an electric vehicle according to any one of claims 1 to 3,
The extension number safety device for charging an electric vehicle, wherein the identification number input means receives an identification number by a signal transmitted from a transmitter built in a key of the electric vehicle.

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