WO2011045635A1

WO2011045635A1 - Electric vehicle charging stand

Info

Publication number: WO2011045635A1
Application number: PCT/IB2010/002104
Authority: WO
Inventors: 亘彦戸田; 宏展堀; 田中　昌史; 鈴木　剛
Original assignee: パナソニック電工株式会社
Priority date: 2009-10-13
Filing date: 2010-08-27
Publication date: 2011-04-21
Also published as: JP2011087352A; KR20120065403A; KR101370213B1; JP5406657B2

Abstract

An electric vehicle charging stand is equipped with a stand body, and an outlet unit contained in the stand body. The outlet unit contains an outlet, a housing which holds the outlet, and a connection terminal which is connected to the electric power cable and the outlet terminal. The connection terminal is exposed on the outside of the housing.

Description

Description Charging station for electric vehicles

The present invention relates to a charging station for an electric vehicle installed in a service area of an automobile road, a parking lot of a commercial facility, or a parking lot of an apartment house.

Background art

In recent years, an internal combustion engine (gasoline engine, diesel engine, etc.) and an electric motor (motor) are used in combination as an environmentally friendly vehicle that can reduce carbon dioxide emissions and oil (gasoline, light oil, etc.) consumption. Hybrid cars that run on the road and electric cars that run only on electric motors are attracting attention. In addition, as a form of hybrid vehicle, currently, the one that recharges secondary batteries while driving is the mainstream, but secondary parking while using commercial AC power (AC 1 00 port or 2 0 0 port). When the battery is charged and the vehicle is first driven by an electric motor and the remaining capacity of the secondary battery is reduced, a vehicle that is driven by an internal combustion engine will be marketed soon. The latter type of vehicle is called a plug-in hybrid vehicle.

By the way, in order for electric vehicles and plug-in hybrid vehicles (hereinafter these two types of vehicles to be collectively referred to as “electric vehicles”) to spread, it is necessary to develop an infrastructure for charging secondary batteries. is there. Specifically, there are many power sources (outlets) that can be used by an unspecified number of people in public spaces (public spaces) such as service areas for automobile roads, parking lots for commercial facilities, and parking lots for apartment buildings. Must be installed. Here, as an outlet to be installed outside, the outlet is placed in a pole buried under the ground, and the feeder line branched from the residential distribution board in the dwelling unit (indoor) is connected to the outlet. Conventionally, an outlet device (also referred to as a power pole) is provided (see, for example, Patent Document 1). The power pole described in Patent Document 1 has a casing with a door attached to the top of a cylindrical pole, and two outlets are housed in the casing. With the open, the power plug is plugged into the outlet in the casing.

Patent Document 1: Japanese Patent Application Laid-Open No. Hei 10-2 2 3 3 9

By the way, when the power pole described in Patent Document 1 is used for a charging stand for an electric vehicle, up to two electric vehicles can be charged simultaneously with one charging stand (power pole) for an electric vehicle. However, to charge three or more electric vehicles at the same time, install multiple electric vehicle charging stands (power poles) or use another type of electric vehicle with three or more outlets in the casing. Set up a charging stand (power pole) Need to be placed. Therefore, when the number of outlets is increased with the increase in the penetration rate of electric vehicles, a new charging stand (power pole) for electric vehicles must be installed.

On the other hand, it has a plurality of storage spaces inside and a stand body that is erected on the ground where an electric vehicle is parked, a box-shaped housing that is open on the front surface, and a housing. Equipped with an outlet unit that has a receptacle and is detachably stored in the storage space of the stand body. A charging station for electric vehicles is also proposed.

However, in such a charging stand for an electric vehicle, there is a problem that it is difficult to connect the power cable for power supply to the terminal part of the outlet because the terminal part of the outlet is hidden in the casing. Start of invention

The present invention has been made in view of the above circumstances, and provides a charging stand for an electric vehicle in which an electrical connection work between a terminal portion of an outlet and a power cable for feeding can be easily performed.

According to an embodiment of the present invention, a stand main body, and a outlet unit housed in the stand main body, the outlet unit includes an outlet, a housing that holds the outlet, a power cable, and a terminal of the outlet. There is provided a charging station for an electric vehicle comprising a connection terminal connected to the housing, wherein the connection terminal is exposed to the outside of the housing.

The stand body has one or more storage cavities inside and is erected on the ground where the electric vehicle is parked. The outlet unit is detachably stored in the storage cavities, and the outlet is A power cable for charging an electric vehicle has a plug that can be freely inserted and connected, and a power supply terminal. The housing is formed in a box shape with an open front and is provided in an internal space. The outlet may be held so as to expose the insertion port and cover the terminal of the outlet. The outlet unit further includes a terminal block having the connection terminal, the terminal of the outlet socket and the power cable are connected via the terminal block, and the connection terminal is exposed to the outside of the casing. You may attach to a housing | casing.

According to the above configuration, the outlet terminal and the terminal block are electrically connected at the manufacturing stage, and the power cable is connected to the connection terminal exposed to the outside of the housing at the time of operation. The electrical connection work between the power supply cable and the power supply cable can be easily performed.

Further, the inside of the stand body is separated into a wiring space where the power cable is routed and the storage space by a partition wall standing upright along the vertical direction, and the partition wall is stored in the storage space A window hole that allows the terminal block of the outlet unit to face the wiring space may be provided.

According to the above configuration, when the inside of the stand body is separated by the partition wall into the storage space and the wiring space for the power cable, the terminal block of the outlet unit is connected to the wiring space through the window hole penetrating the partition wall. Connect the power cable to the connection terminal on the terminal block. Work can be done easily.

In addition, the wiring space in the stand main body may be provided with a space for installing an earth leakage breaker inserted between the power cable and the connection terminal of the terminal block.

According to the above configuration, since the installation space for installing the earth leakage breaker is provided in the wiring space in the stand body, the earth leakage breaker is installed between the power cable and the outlet as a measure to prevent the earth leakage accident at the outlet. It can easily correspond to the construction form to insert. The invention's effect

According to the embodiment of the present invention, there is an effect that the electrical connection work between the terminal portion of the outlet and the power cable for feeding can be easily performed.

Brief Description of Drawings

Objects and features of the present invention will become apparent from the following description of preferred embodiments given in conjunction with the accompanying drawings.

FIG. 1 is an exploded perspective view showing a charging station for an electric vehicle according to an embodiment of the present invention, partly omitted as viewed from the right rear side.

FIG. 2 is a front view of a charging stand for an electric vehicle according to the embodiment.

3 shows a charging station for an electric vehicle according to the embodiment, and is a cross-sectional view taken along the line m-m ′ in FIG.

FIG. 4 shows a charging station for an electric vehicle according to the embodiment, and is a cross-sectional view taken along the line V-IV ′ in FIG.

FIG. 5 is an external perspective view of the electric vehicle charging station according to the embodiment as seen from the front.

FIG. 6 is a right side view of the electric vehicle charging station according to the embodiment.

FIG. 7 is a rear view of the electric vehicle charging station according to the embodiment.

FIG. 8 is a bottom view of the electric vehicle charging station according to the embodiment.

FIG. 9 is a perspective view showing the concentrator in the electric vehicle charging station according to the embodiment, as seen from the front.

FIG. 10 is a perspective view showing a concentrator in the charging stand for an electric vehicle according to the embodiment and viewed from the rear.

FIG. 11 is an exploded perspective view, as viewed from the front, with a part of the charging stand for an electric vehicle according to the embodiment omitted.

FIG. 12 is a partially omitted rear view of the electric vehicle charging station according to the embodiment with the back plate removed.

FIG. 13 is a schematic configuration diagram schematically illustrating a connection relationship between an outlet, a terminal block, and an earth leakage breaker in the electric vehicle charging station according to the embodiment. BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, embodiments of the present invention will be described in more detail with reference to the drawings forming a part of this specification. Throughout the drawings, the same or similar parts are denoted by the same reference numerals, and redundant description thereof is omitted.

As shown in FIGS. 1 and 2, the charging stand for an electric vehicle according to the present embodiment includes a stand main body 1 standing on the ground on which the electric vehicle is parked, and a power cable (hereinafter referred to as charging) for charging the electric vehicle. It is called a cable.) It has an outlet 2 0a (see Fig. 3) to which the 1 0 0 plug 1 1 0 is plugged into the insertion port 2 0a.

The stand body 1 is a rectangular tube with front, top and bottom surfaces opened by assembling three metal plates (left side plate 2, right side plate 3, back plate 4) formed into a long rectangular plate. The opening of the top surface is closed by a flat box-shaped cover 5. On the inner surface of the left side plate 2 and the side plate 3, there is a mounting plate 6 made of a rectangular plate-like metal plate and bent in a step-like manner along the front-rear direction at the center in the left-right direction (horizontal direction). (See Fig. 3 and Fig. 4). That is, the interior of the stand body 1 is divided into front and rear by the mounting plate 6, and an outlet unit 10 to be described later is housed in a space in front of the mounting plate 6, and an earth leakage breaker 2 0 0 to be described later and a power supply The power cable 50 (see Fig. 13) is stored (wired) in the space behind the mounting plate 6. The mounting plate 6 has a plurality of screw holes 6a for attaching the outlet unit 10 and the earth leakage circuit breaker 200 at equal intervals in the vertical and horizontal directions.

A rectangular plate-like upper panel 7 A and lower panel 7 B are attached to the uppermost and lowermost parts of the front surface of the stand body 1. In the stand body 1, four storage spaces 8 are arranged in the vertical direction in the front space from the lower end of the upper panel 7A to the upper end of the lower panel 7B. Has been. The number of the storage cavities 8 is not limited to four, and may be provided in the space of the stand main body 1 with, for example, 2, 3, 5, or more.

As shown in FIG. 9, the outlet unit 10 includes a box-shaped housing 1 1 having an opening window 1 1 a on the front surface, an outlet block 1 2 held in the housing 1 1, and an opening window 1 1 a. A closed position (see Fig. 5) and a door 1 3 that can be rotated horizontally between the open position that opens the opening window 1 1 a, and a synthetic resin material that covers the top of the housing 1 1 And a unit cover 1 6 made of steel. As shown in FIGS. 9 and 10, the casing 1 1 has a substantially central portion in the left-right direction of the back plate 1 1 b bent in a step shape along the front-rear direction, and the back plate from the opening window 1 1 a 1 1 Outlet block 1 2 is installed in the corner on the side with the large depth (left side) up to 1 b.

The outlet block 1 2 has a rectangular box-shaped body 2 O b with an outlet 20 0a on the front surface and a fitting hole 2 1a to which the front end of the outlet 20 fits. The outlet 20 is provided with a plate-like outlet panel 21 to which the outlet 20 is attached from the rear. The outlet panel 21 is formed in a substantially hexagonal shape, with the lower end located behind the upper end. It is attached to the left corner in the case 11 1 so that the right end is located behind the left end. The outlet 20 is stored in a space surrounded by the inner wall surface of the casing 1 1 and the outlet panel 21, and the outlet 20 0a of the outlet 20 through the fitting hole 2 1a of the outlet panel 21. Is exposed in the internal space of the casing 1 1. The outlet 20 is well known in the art, and a blade holder (not shown) for receiving the contact (plug blade) of the plug 1 1 0 inserted from the insertion port 20a or an external electric wire Terminals 20 0 c and 20 0 d (see FIG. 13) for connection to 60 (see FIG. 13) are housed in a container body 20 b made of an insulating material.

Therefore, since the outlet panel 21 is mounted in the casing 11 so that the lower end is located rearward with respect to the upper end and the right end is located rearward with respect to the left end, the outlet panel 21 is attached to the outlet panel 21. The installed outlet 2 0 has a plug 1 1 0 removal direction with respect to the insertion port 20 0 a that intersects the opening window 1 1 a obliquely in the horizontal and vertical directions, in other words, the insertion port 2 0 a. The orientation (normal direction of the front of the outlet 20) is inclined so that it is tilted diagonally downward to the right with respect to the direction of the opening window 1 1a (normal direction of the opening face of the opening window 1 1a). (See Figures 2 and 3).

Here, as shown in FIGS. 10 and 13, a terminal block 2 2 is attached to the rear surface of the casing 11. This terminal block 2 2 is connected to the terminals 2 0 c and 2 O d of the outlet 20 through a through hole (not shown) through which one of the connection terminals 2 2 c and 2 2 d penetrates the back plate 1 1 b. (Actually, it is connected via an interlock device 23 described later) and, as will be described later, the electric wire 60 connected to the secondary terminal of the earth leakage breaker 20 0 0 is connected to the other. Connected to terminals 2 2 a and 2 2 b. In other words, since the outlet 20 is stored in the space surrounded by the inner wall surface of the casing 11 and the outlet panel 21, the terminal block 2 2 is attached to the outside of the casing 11 and the terminal block 2 2 By connecting the terminals 20 c and 20 d of the outlet 20 and the external electric wire 60, the connection work is facilitated.

The door 13 is formed in a flat rectangular box shape, and the left end is pivotally supported by the front left end of the housing 11 by a pair of upper and lower hinges 14 as shown in FIG. In addition, a locking device 15 is attached to the rear side of the door 13, and the key hole 15 a of the locking device 15 is exposed on the front surface of the door 13 (see FIG. 2). When the door 13 is in the closed position, there should be a gap (extraction port) for pulling out the charging cable 100 between the lower end of the door 13 and the lower end on the front side of the housing 11 (See Figure 2).

In addition, as shown in FIG. 9, the outlet unit 10 is provided with an interlock device 2 3, and when the door 1 3 is not in the closed position, the outlet device 2 3 is connected to the outlet 2. Only when the power to 0 is turned off and the door 13 is in the closed position, the power to the outlet 20 is turned on. Such an interlock device 23 is well known in the art, and is an actuator 23 3 a that is pushed and driven by a U-shaped drive piece 1 3 a provided on the rear surface of the horizontally rotating door 1 3. When the door 1 3 is in the closed position, the actuator 2 3 a is pushed by the drive piece 1 3 a to close the power supply path to the outlet 20, and the door 1 3 When not in the closed position, the actuator 23a is not pushed and driven by the drive piece 13a, thereby opening a power supply path to the outlet 20.

The outlet unit 10 configured as described above is housed in the storage space 8 in the stand body 1 from the front side, and the casing 11 is screwed to the mounting plate 6 so that the stand main body is secured. Fixed to 1. As described above, four storage spaces 8 having the same dimensions are arranged in the vertical direction in the stand body 1, and the outlet unit 10 can be stored in any of these four storage spaces 8. . Here, a rectangular window hole 6 b is provided through the mounting plate 6 for each storage space 8, and the outlet unit 10 is stored in the storage space 8, so that the housing 1 1 The terminal block 2 2 attached to the back surface is passed through the window hole 6 b and exposed to the rear space of the mounting plate 6 (wiring space 9 (see Figs. 3 and 4)) (Figs. 10 to 1) 2). In this embodiment, the case where the outlet unit 10 is stored in all four storage spaces 8 is illustrated, but the outlet unit 10 is always stored in all four storage spaces 8. There is no need to store at least one outlet 10 in any one storage space 8.

As shown in Fig. 3, 4 Fig. 12 and Fig. 13, the earth leakage breaker 20 0 is attached to the back of the side of the mounting plate 6 that protrudes forward (left side in Fig. 12). Is arranged. In this wiring space 9, a power cable 50 for supplying AC power from a commercial AC power source is inserted from the cable inlet 1a on the bottom of the stand body 1 and wired up (see Fig. 8). The power cable 5 0 wired in the wiring space 9 is connected to the primary side of the earth leakage breaker 20 0 0, and the secondary side of the earth leakage breaker 2 0 0 is connected to the terminal block 2 2 by the wire 6 0. Connected to one connection terminal 2 2 a, 2 2 b (connection terminal on the wiring space 9 side), and the other connection terminal 2 2 c, 2 2 d (connection in the housing 1 1) of the terminal block 2 2 To the terminals 2 0 c and 2 O d of the outlet 20 through the interlock device 23. The wiring work described above can be easily performed by simply removing the back plate 4 of the stand body 1.

Next, the procedure for using the electric vehicle charging station of the present embodiment will be described. First, open the door 13 and plug the plug 1 1 0 into the outlet 2 0 by inserting the contact 1 of the plug 1 1 0 of the charging cable 1 0 0 into the outlet 2 0 a. At this time, the outlet 20 0 3 of the outlet 20 is located on the left side in the casing 11, and the direction of the outlet 20 0 a is diagonally lower right than the direction of the opening window 11 1 a. Since it is arranged so as to incline in the direction, sufficient space (space) required for insertion and removal of the plug 110 in the housing 11 can be secured, and the plug 110 can be easily inserted. At the same time, even when it rains, rainwater that falls into the casing 11 through the opening window 11a is not easily applied to the outlet 20a.

Plug the plug 1 1 0 into the outlet 2 0 and then close the door 1 3 and lock the locking device 1 5 using a key (not shown). Here, as in the case of the power pole described in Patent Document 1, if the outlet of the outlet is almost in the horizontal direction with respect to the opening of the casing in which the outlet is stored, plug it into the outlet. The connection position of the power cable (charging cable) that is plugged in and the outlet of the outlet is almost the same in the horizontal direction. Position. Therefore, when multiple outlets are installed side by side in the vertical direction, the hanging power cable and the outlet of the lower outlet overlap each other when viewed from the front, so another power cable plug is connected to the lower outlet. There is a problem that the work of plugging in and connecting becomes difficult. On the other hand, in the present embodiment, each outlet 20 is placed inside the stand body 1 (concentration unit 1) so that the direction of the insertion port 20 0a is inclined obliquely downward to the right with respect to the direction of the opening window 1 1a. The charging cable 1 0 0 and the lower outlet 20 0 are plugged into the upper outlet 20 and plugged into the opening window 1 1 and suspended from the opening window 1 1 a. 20 0a does not overlap with the front, and the work of plugging and connecting the plug 1 1 0 of another charging cable 1 0 0 to the lower outlet 20 is facilitated.

Further, as shown in FIG. 2, a plurality (three) of cable holders (holding bodies) 40 are attached to the outer peripheral surface (right side surface in the present embodiment) of the stand body 1. As shown in FIGS. 4 to 7, the cable holder 40 is formed by bending a strip-shaped metal plate into a bowl shape having a substantially U-shaped cross section, and aligning the longitudinal direction with the vertical direction and the groove at the rear. It is screwed in the vicinity of the storage space 8 in the second to fourth steps from the top of the right side plate 3 of the stand main body 1 so as to face.

Thus, if the charging cable 1 0 0 pulled out of the stand body 1 through the opening window 1 1 a (drawing port) (front) is fitted into the groove and held in the cable holder 40, the upper stage It is possible to open and close the door 13 of the lower outlet unit 1 0 without causing the charging cable 1 0 0 connected to the plug 2 1 0 to plug 1 1 0 to become too much of an obstacle. Even when the charging cable 1 0 0 is pulled carelessly, the cable holder 4 0 holds the charging cable 1 0 0, so that the tension applied to the plug 1 1 0 is relieved and the outlet 2 0. It is possible to prevent the plug 1 1 0 from being pulled out from the insertion port 2 0 a. Here, since the three cable holders 40 are arranged at positions shifted in the front-rear direction of the stand body 1 along the vertical direction, the plurality of charging cables 100 held by the cable holder 40 are mutually connected. It does not get in the way. Furthermore, in the present embodiment, the cable holder 40 at the lower side is disposed at a position closer to the front of the stand body 1 than the cable holder 40 at the upper side. The lower cable holder 40 is positioned closer to the front of the stand body 1 than the charging cable 100 held by the cable holder 40 relatively above. (See FIGS. 5 and 6) When the charging cable 10 0 is held by the cable holder 40 relatively below, the charging cable 10 0 held by the cable holder 40 relatively above There is an advantage that does not get in the way.

On the other hand, when charging of the electric vehicle is completed, the locking device 15 is unlocked, the door 13 is opened, and the plug 1 1 0 is pulled out from the outlet 2 0a of the outlet 2 0. Here, when the door 1 3 is open, the power supply to the outlet 20 is turned off by the inter-plug device 2 3, so the plug 1 1 0 is inserted into the outlet 2 0a of the outlet 20 This can prevent an electric shock accident.

As described above, in the present embodiment, the stand body having one to a plurality of storage spaces 8 inside. 1 and an outlet unit 10 that is detachably stored in the storage space 8 of the stand body 1, and the outlet unit 1 0 is a charging cable for charging an electric vehicle 1 0 0 plug 1 1 An outlet 20 with a 0 pluggable for insertion and removal, and an outlet 20 with power supply terminals 20 0 c and 2 0 d, and a socket formed in a box shape with an open front, and an insertion port in the internal space Connection terminal 2 2 a, 2 to which 2 0 a is exposed and the housing 1 1 holding the outlet 2 0 and the power cable 5 0 are connected so as to cover the terminals 2 0 c and 2 0 d 2 b and a terminal block 2 2 for connecting the power cable 50 to the terminals 2 0 c and 2 0 d of the outlet 2 0, and connecting terminals 2 2 a and 2 2 b to the housing 1 1 Since the terminal block 2 2 is attached to the housing 1 1 so as to be exposed to the outside, the electrical connection between the terminals 2 0 c and 2 0 d of the outlet 2 0 and the terminal block 2 2 At the manufacturing stage, the terminal block 2 exposed on the outside of the casing 1 1 at the time of construction 2 2 Connecting terminals 2 2 a, 2 2 b Connecting the power cable 5 0 to the outlet 2 0 terminal 2 There is an advantage that the electrical connection work between 0 c and 20 d and the power cable 50 for feeding can be easily performed.

In addition, the inside of the stand body 1 is separated into a wiring space 9 in which the power cable 50 is routed and a storage space 8 by a partition wall (mounting plate 6) standing in the vertical direction. The plate 6 has a window hole 6 b through which the terminal block 2 2 of the concentrator 10 stored in the storage space 8 faces the wiring space 9. When separated into the storage space 8 and the wiring space 9 for the power cable 50, the terminal block 2 2 of the outlet unit 10 is connected to the wiring space 9 through the window hole 6 b extending through the mounting plate 6. This has the advantage that the work of connecting the power cable 50 to the connection terminals 2 2 a. 2 2 b of the terminal block 2 2 can be easily performed.

Furthermore, an installation space for the earth leakage breaker 20 0 inserted between the power cable 50 and the connection terminals 2 2 a and 2 2 b of the terminal block 2 2 is provided in the wiring space 9 in the stand body 1. Therefore, there is an advantage that it is possible to easily cope with the construction mode in which the leakage breaker 20 0 is inserted between the power cable 50 and the outlet 20 as a measure for preventing the leakage accident of the outlet 20. When the earth leakage breaker 2 0 0 is installed between the power cable 50 and the commercial AC power source, it is not always necessary to install the earth leakage breaker 2 0 0 in the wiring space 9 of the stand body 1. .

The preferred embodiments of the present invention have been described above, but the present invention is not limited to these specific embodiments, and various changes and modifications can be made without departing from the scope of the claims. Are also within the scope of the present invention.

Claims

The scope of the claims

[Claim 1]

A stand main body; and an outlet unit housed in the stand main body, the outlet unit including an outlet, a housing for holding the outlet, and a connection terminal connected to a terminal of the power cable and the outlet. And a charging stand for an electric vehicle that exposes the connection terminal to the outside of the housing.

[Claim 2]

The stand main body has one or a plurality of storage cavities therein and is erected on a ground where an electric vehicle is parked. The outlet unit is detachably stored in the storage cavities, and the outlet Has a power supply plug for charging an electric vehicle so that the plug can be inserted and removed, and a terminal for power supply. The housing is formed in a box shape with an open front, and has an internal space. The outlet is held so as to expose the outlet and cover the terminal of the outlet, and the outlet unit further includes a terminal block having the connection terminal, and the terminal of the outlet via the terminal block 2. The charging stand for an electric vehicle according to claim 1, wherein the power cable is connected and attached to the housing so that the connection terminal is exposed to the outside of the housing.

[Claim 3]

The inside of the stand body is separated into a wiring space where power cables are routed and the storage space by a partition wall standing upright along the vertical direction, and the partition wall is stored in the storage space. 3. The charging stand for an electric vehicle according to claim 2, wherein a window hole through which the terminal block of the bag faces the wiring space is provided.

[Claim 4]

4. The charging stand for an electric vehicle according to claim 3, wherein an installation space for an earth leakage breaker inserted between the power cable and the connection terminal of the terminal block is provided in the wiring space in the stand body.