JP2011087354A - Charging stand for electric vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a charging stand for an electric vehicle, which is not upsized even if it has an earth leakage breaker. <P>SOLUTION: A dead space generated by disposing an outlet 20 closely to the left in a stand body 1 is used as a space for installing the earth leakage breaker 200. With this configuration, the stand body 1 is prevented from being upsized even if it has the earth leakage breaker 200. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

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

  In recent years, internal combustion engines (gasoline engines, diesel engines, etc.) and electric motors (motors) have been used in combination as eco-friendly vehicles 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. Moreover, as a form of hybrid vehicle, currently, the one that recharges the secondary battery while driving is the mainstream, but the secondary battery is charged while parking using a commercial AC power source (AC 100 or 200 volts). If the remaining capacity of the secondary battery decreases when the vehicle runs with an electric motor, a vehicle that runs with an internal combustion engine will soon be marketed. 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 are 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 such as service areas on automobile roads, parking lots for commercial facilities, and parking lots for apartment buildings. Must be installed. Here, the outlet is installed outdoors, and the outlet is arranged in a pole with the lower part buried in the ground, and the feeder line branched from the residential distribution board in the dwelling unit (indoor) is used as the outlet. A connected outlet device (also called a power supply pole) has been conventionally provided (see, for example, Patent Document 1). The power pole described in Patent Document 1 is configured such that a casing with a door is attached to the top of a cylindrical pole and two outlets are housed in the casing, and the casing door is opened. A power plug is plugged into an outlet in the casing. In addition, in order to prevent a leakage accident, a leakage breaker is electrically connected between the power supply pole and the power supply line, and this leakage breaker is disposed above the outlet in the casing. .

JP-A-10-223339

By the way, in the power pole described in Patent Document 1, since the earth leakage circuit breaker is disposed above the outlet in the casing, the height of the casing is increased. When arranged in parallel in the direction, the overall height may become too high. On the other hand, when the earth leakage breaker is disposed behind the outlet, there is a problem that the diameter of the casing increases to increase the size and the dead space increases.

  This invention is made | formed in view of the said situation, The objective is to provide the charging stand for electric vehicles which can suppress an enlargement, when providing an earth-leakage circuit breaker.

  In order to achieve the above object, the stand main body standing on the ground where the electric vehicle is parked and the plug of the power cable for charging the electric vehicle are plugged in and connected so as to be freely inserted and removed. One or more outlets are provided, and one or more opening windows are provided on the front surface of the stand body so that the outlet of the outlet faces the front side, and a space partitioned by a wall is formed inside the opening window. The rear surface of the wall facing the opening window is formed in a stepped manner in the front-rear direction in the left-right direction, and an outlet socket is provided on the rear wall back as viewed from the front, and the front wall as viewed from the front An installation space for an earth leakage circuit breaker to be inserted between an external power source and an outlet is provided behind the back surface.

  According to the first aspect of the present invention, the dead space generated by placing the outlet in the stand body close to the left or right can be set as the installation space for the earth leakage breaker, and as a result, the earth leakage breaker is provided. The increase in size can also be suppressed.

  According to a second aspect of the present invention, in the first aspect of the invention, the plurality of outlets are arranged in the stand body along the vertical direction, and each outlet has a plug insertion / removal direction with respect to the insertion port in the horizontal direction and the vertical direction. It is arrange | positioned in a stand main body so that it may cross | intersect an opening window diagonally, It is characterized by the above-mentioned.

  According to the invention of claim 2, the plurality of outlets arranged in the stand main body along the vertical direction, the plug insertion / removal direction with respect to each insertion port obliquely intersects the opening window in the horizontal direction and the vertical direction. So that the power cable hanging from the opening window and the outlet of the lower outlet should not overlap when viewed from the front. This makes it easier to plug and connect another power cable plug to the lower outlet.

  According to the present invention, there is an effect that an increase in size can be suppressed even when an earth leakage breaker is provided.

It is a bottom surface sectional view showing an embodiment of the present invention. It is a front view same as the above. FIG. 2 is a cross-sectional view taken along the line X-X ′ of FIG. It is the external appearance perspective view seen from the front same as the above. It is a right view same as the above. It is a rear view same as the above. It is a bottom view same as the above. It is the perspective view which showed the outlet unit in the same and was seen from the front. It is the perspective view which showed the outlet socket unit same as the above and was seen from back. It is the disassembled perspective view seen from the front abbreviate | omitted partially same as the above. It is the disassembled perspective view seen from the back which abbreviate | omitted a part same as the above. It is the rear view which abbreviate | omitted a part of the state which removed the back board same as the above. It is the simplified sectional view showing a conventional example.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  As shown in FIGS. 2 and 3, the charging stand for an electric vehicle according to the present embodiment includes a stand main body 1 standing on the ground where the electric vehicle is parked, and a power cable (hereinafter referred to as a charging cable) for charging the electric vehicle. The plug 110 of 100 is provided with the outlet 20 which is inserted and connected to the insertion port 20a.

  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 in a long rectangular plate shape. The opening on the top surface is closed by a flat box-shaped cover 5. On the inner side surfaces of the left side plate 2 and the right side plate 3, a mounting plate made of a rectangular plate-like metal plate and having a substantially central portion in the left-right direction (horizontal direction) bent in a step shape along the vertical direction (vertical direction) 6 is attached in parallel with the back plate 4 (see FIGS. 1 and 2). That is, the inside of the stand main body 1 is divided into front and rear by the mounting plate 6, and an outlet unit 10 described later is housed in a space in front of the mounting plate 6. (Not shown) is housed (wired) in the space behind the mounting plate 6. A plurality of screw holes 6a for attaching the outlet unit 10 and the earth leakage breaker 200 are provided in the mounting plate 6 at equal intervals along the vertical direction and the horizontal direction.

  A rectangular plate-like upper panel 7A and lower panel 7B 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 for storing the outlet units 10 are juxtaposed in the vertical direction in the front space from the lower end of the upper panel 7 </ b> A to the upper end of the lower panel 7 </ b> B.

  As shown in FIG. 8, the outlet unit 10 has a box-shaped casing 11 having an opening window 11a on the front surface, an outlet block 12 held in the casing 11, and a closed position for closing the opening window 11a (see FIG. 4). ) And an open position that opens the opening window 11a, and a door 13 that is rotatable in the horizontal direction, and a unit cover 16 made of a synthetic resin material that covers the top of the housing 11. As shown in FIG. 9, the case 11 has a substantially central portion in the left-right direction of the back plate 11b bent in a step (step shape) in the front-rear direction along the vertical direction (vertical direction). The outlet block 12 is disposed in the corner on the side (left side) where the depth to the plate 11b is large. In the present embodiment, the metal plate forming the housing 11 serves as a wall that partitions the inside of the opening window 11a.

  The outlet block 12 has an outlet 20 provided with an insertion port 20a on the front surface of a rectangular box-shaped container 20b, and a fitting hole 21a into which the front end of the outlet 20 is fitted, and the outlet 20 is attached from the rear. A plate-shaped outlet panel 21 is provided. The outlet panel 21 is formed in a substantially hexagonal shape, and is attached to the left corner in the housing 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. Yes. The outlet 20 is housed in a space surrounded by the inner wall surface of the casing 11 and the outlet panel 21, and the outlet 20 a of the outlet 20 is exposed to the inner space of the casing 11 through the fitting hole 21 a of the outlet panel 21. . The outlet 20 is well known in the art, and is used for connecting a blade receiver (not shown) for receiving a contact (plug blade) of the plug 110 inserted from the insertion port 20a and an external electric wire. A terminal (not shown) is housed in a container 20b made of an insulating material.

  Here, as shown in FIG. 13, when the outlet 20 and the earth leakage breaker 200 are arranged in the front-rear direction (vertical direction in FIG. 13) in the horizontal plane, the left and right of the earth leakage breaker 200 in the stand body 1 ′. A dead space DS is generated on both sides, and the depth dimension in the front-rear direction of the stand body 1 ′ is increased. On the other hand, in the present embodiment, the back surface (back plate 11b) of the wall facing the opening window 11a is formed in a stepwise manner in the front-rear direction in the left-right direction, and the back wall back surface (outlet panel 21) as viewed from the front. The outlet 20a of the outlet 20 is disposed at the rear, and an installation space for the earth leakage breaker 200 is provided behind the back of the front wall as viewed from the front. That is, as shown in FIG. 1, the space S in which the outlet 20 is disposed and the installation space for the earth leakage breaker 200 are not lined up in the front-rear direction in the horizontal plane and partially overlap in the left-right direction. Since the dead space generated by placing the outlet 20 close to the left is used as the installation space for the earth leakage breaker 200, even when the earth leakage breaker 200 is provided, an increase in the size of the stand body 1 can be suppressed.

  Furthermore, since the outlet panel 21 is mounted in the housing 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 20 attached to the outlet panel 21 is The insertion / extraction direction of the plug 110 with respect to the insertion port 20a obliquely intersects the opening window 11a in the horizontal direction and the vertical direction, in other words, the direction of the insertion port 20a (the normal direction of the front surface of the outlet 20) is the direction of the opening window 11a. It is disposed so as to be inclined obliquely downward to the right with respect to the (normal direction of the opening surface of the opening window 11a) (see FIG. 2).

  Here, as shown in FIG. 9, a terminal block 22 is attached to the back surface of the housing 11. This terminal block 22 is connected to a terminal of the outlet 20 through a through hole (not shown) through which one connection terminal penetrates the back plate 11b (actually, it is connected via an interlock device 23 described later). In addition, as will be described later, the electric wire connected to the secondary terminal of earth leakage breaker 200 is connected to the other connection terminal. That is, since the outlet 20 is housed in a space surrounded by the inner wall surface of the casing 11 and the outlet panel 21, the terminal block 22 is attached to the outside of the casing 11, and the terminals of the outlet 20 are connected to the outside via the terminal block 22. The connection work is facilitated by connecting the electric wires.

  The door 13 is formed in a flat rectangular box shape, and the left end is pivotally supported on the front left end of the housing 11 by a pair of upper and lower hinges 14 as shown in FIG. Moreover, the locking device 15 is attached to the back side of the door 13, and the key hole 15a 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, a gap (extraction port) for drawing out the charging cable 100 from the space between the lower end of the door 13 and the lower end on the front side of the housing 11 is vacant (see FIG. 2). ).

  Further, the outlet unit 10 is provided with an interlock device 23. When the door 13 is not in the closed position, the power supply to the outlet 20 is turned off and the door 13 is in the closed position. Only the power supply to the outlet 20 is turned on. Such an interlock device 23 is well known in the art and has an actuator 23a that is pushed and driven by a U-shaped drive piece 13a provided on the back surface of the door 13 that rotates in the horizontal direction. When the actuator 23a is in the closed position, the actuator 23a is pushed by the drive piece 13a to close the power supply path to the outlet 20, and when the door 13 is not in the closed position, the actuator 23a is not pushed by the drive piece 13a. A power supply path to the outlet 20 is opened.

  The outlet unit 10 configured as described above is housed in the housing space 8 in the stand body 1 from the front side, and is fixed to the stand body 1 by screwing the housing 11 to the mounting plate 6. Is done. As described above, the four storage cavities 8 having the same dimensions are arranged in the vertical direction in the stand main body 1, and the outlet unit 10 can be stored in any of these four storage cavities 8. Here, a rectangular window hole 6 b is provided in the mounting plate 6 for each storage space 8, and the outlet unit 10 is mounted on the back surface of the housing 11 in a state where the outlet unit 10 is stored in the storage space 8. The terminal block 22 is inserted through the window hole 6b and exposed to the rear space (wiring space 9) of the mounting plate 6 (see FIGS. 10 to 12). However, in this embodiment, the case where the outlet unit 10 is stored in all the four storage spaces 8 is illustrated, but it is not always necessary to store the outlet unit 10 in all the four storage spaces 8, and at least 1 One outlet unit 10 may be stored in any one storage space 8.

  As shown in FIGS. 3 and 12, the earth leakage breaker 200 is attached to the back surface of the side (left side in FIG. 12) that protrudes forward of the mounting plate 6 and is disposed in the wiring space 9. In this wiring space 9, a power cable (not shown) for supplying AC power from a commercial AC power source is inserted from the cable inlet 1 a on the bottom surface of the stand body 1 and wired up (see FIG. 7). And while the electric power cable wired by the wiring space 9 is connected to the primary side of the earth leakage breaker 200, the secondary side of the earth leakage breaker 200 is connected to one connection terminal of the terminal block 22 by the electric wire which is not illustrated, The other connection terminal of the terminal block 22 is connected to the terminal 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 this embodiment will be described. First, the door 13 is opened, and the plug 110 is plugged into the outlet 20 by inserting the contact of the plug 110 of the charging cable 100 into the insertion port 20a. At this time, since the direction of the insertion port 20a is arranged so as to be inclined obliquely downward to the right with respect to the direction of the opening window 11a, a space (space) necessary for inserting and removing the plug 110 in the housing 11 is provided. The plug 110 can be sufficiently secured and the plug 110 can be easily inserted, and rainwater that falls into the housing 11 through the opening window 11a is difficult to be applied to the insertion port 20a even in rainy weather. However, even if the outlet unit 10 is arranged close to the right side in the housing 11 and the outlet 20 is disposed so that the direction of the insertion port 20a is inclined obliquely to the left and downward with respect to the direction of the opening window 11a. However, as in the present embodiment, it is generally considered that the outlet 20 is disposed so that the insertion port 20a is tilted diagonally downward to the right from the left position in the housing 11. Right-handed people have the advantage of making it easier to insert the plug 110.

  After the plug 110 is plugged into the outlet 20, the door 13 is closed and the lock device 15 is locked using a key (not shown). Here, as in the case of the power pole described in Patent Document 1, when the outlet outlet of the outlet is almost directly facing the opening of the casing in which the outlet is stored, the plug is inserted into the outlet. The pull-out position of the plugged-in power cable and the position of the outlet of the outlet are substantially the same in the horizontal direction. For this reason, when multiple outlets are installed side by side in a vertical direction, the hanging power cable and the outlet of the lower outlet overlap each other when viewed from the front.Therefore, plug another power cable into the lower outlet. There is a problem that it becomes difficult to make a complicated connection. On the other hand, in this embodiment, each outlet 20 is disposed in the stand body 1 (in the outlet unit 10) so that the direction of the insertion port 20a is inclined obliquely downward to the right with respect to the direction of the opening window 11a. Therefore, the plug 110 is plugged into the upper outlet 20 and the charging cable 100 hanging from the opening window 11a and the outlet 20a of the lower outlet 20 do not overlap with each other when viewed from the front. The work of plugging and connecting the plug 110 of another charging cable 100 to 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 main body 1. As shown in FIGS. 1 and 4, 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. The right side plate 3 of the stand main body 1 is screwed in the vicinity of the storage space 8 in the second to fourth stages from the top so as to face.

  Thus, if the charging cable 100 drawn out of the stand body 1 (front) through the opening window 11a (drawing outlet) is fitted into the groove and held by the cable holder 40, the plug is connected to the upper outlet 20. The door 13 of the lower outlet unit 10 can be opened and closed without obstructing the charging cable 100 to which 110 is connected. Further, even when the charging cable 100 is inadvertently pulled, the cable holder 40 holds the charging cable 100, so that the tension applied to the plug 110 is relieved, and the plug 110 is inserted into the outlet 20a of the outlet 20. It can be prevented from coming off. 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 do not interfere with each other. It is. Furthermore, in the present embodiment, the cable holder 40 that is relatively below is disposed at a position closer to the front of the stand body 1 than the cable holder 40 that is relatively above, so that it is relatively below Since the cable holder 40 located at the front is positioned closer to the front of the stand body 1 than the charging cable 100 held by the cable holder 40 located relatively above (see FIG. 5), the cable holder 40 is relatively below. When the charging cable 100 is held by the cable holder 40 in the above, there is an advantage that the charging cable 100 held by the cable holder 40 relatively above 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 110 is pulled out from the insertion port 20 a of the outlet 20. Here, when the door 13 is open, the energization to the outlet 20 is turned off by the interlock device 23, so that it is possible to prevent an electric shock accident when the plug 110 is inserted into and removed from the insertion port 20a of the outlet 20. .

  As described above, according to the present embodiment, the dead space generated when the outlet 20 is arranged to the left in the stand main body 1 is used as the installation space for the earth leakage breaker 200 and the earth leakage breaker 200 is provided. The enlargement of the main body 1 can be suppressed. However, the installation location of the outlet 20 and the installation space of the earth leakage breaker 200 may be reversed left and right.

DESCRIPTION OF SYMBOLS 1 Stand main body 10 Outlet unit 11 Housing | casing 11a Opening window 20 Outlet 20a Outlet 200 Earth leakage breaker S Outlet installation space

Claims (2)

  A stand main body standing on the ground where the electric vehicle is parked, and one or a plurality of outlets into which a plug of a power cable for charging the electric vehicle is detachably inserted and connected. One or a plurality of opening windows are provided so that the insertion port faces the front side, and a space partitioned by a wall is formed inside the opening window, and the back surface of the wall facing the opening window is front and rear in the left-right direction. The outlet is located on the back of the back wall when viewed from the front, and is inserted between the external power supply and the outlet behind the back of the front wall when viewed from the front. A charging stand for an electric vehicle, characterized in that an installation space for a circuit breaker is provided.   Multiple outlets are arranged in the stand main body along the vertical direction, and each outlet is arranged in the stand main body so that the plug insertion / extraction direction with respect to the insertion port obliquely intersects the opening window in the horizontal direction and the vertical direction. The charging stand for an electric vehicle according to claim 1, wherein the charging stand is provided.

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