WO2013061763A1

WO2013061763A1 - Charging device

Info

Publication number: WO2013061763A1
Application number: PCT/JP2012/076092
Authority: WO
Inventors: 光治濱田
Original assignee: 日産自動車株式会社
Priority date: 2011-10-26
Filing date: 2012-10-09
Publication date: 2013-05-02
Also published as: JP2013093976A; JP5392339B2

Abstract

This charging device is provided with: a casing (13); a charging gun (12) provided to the tip of a cable (12a) pulled out from the casing (13); and a concave gun pocket (17) that houses the charging gun (12) provided to the casing (13). The concave gun pocket (17) is provided with: rotation-regulating sections (171, 172) that regulate the rotation of the charging gun (12) when the charging gun (12) is housed; and a locking mechanism (18) that locks the charging gun (12) and is provided vertically below the rotational pivot point (RC) of the charging gun (12).

Description

Charger

The present invention relates to a charging device that is preferably applied when charging a battery mounted on an electric vehicle or a hybrid vehicle.

Japanese Patent Application Laid-Open No. 2010-283947 discloses a charging device having a structure in which a charging gun is accommodated in a casing of the charging device. In this charging apparatus, a concave holding portion formed on the front surface of the housing has a first holding portion that holds the cylindrical portion at the tip of the charging gun, and a second holding portion that holds the cylindrical portion at the base end of the charging gun. After the charging gun is set in the concave storage portion, the charging gun is locked by covering the cover.

However, in the above charging device, the charging gun is set in the concave storage portion and locked by the cover. However, since the cover needs to be provided so as to cover most of the charging gun, there is a problem that the lock mechanism becomes large. .

The problem to be solved by the present invention is to provide a charging device capable of downsizing a lock mechanism for locking and unlocking a charging gun.

One aspect of the present invention includes a rotation restricting portion that restricts rotation of the charging gun when the charging gun is housed in a concave gun pocket formed in the casing of the charging device, and a lower vertical direction than the rotation fulcrum of the charging gun. It is the charging device provided with the lock mechanism which latches the charging gun.

FIG. 1 is an electric circuit diagram showing a charging system to which an embodiment of the present invention is applied. FIG. 2 is a block diagram showing devices constituting the charging system of FIG. 1 and the flow of power. FIG. 3 is a diagram showing a structure for mounting the power conversion device constituting the charging device of FIG. 2 to the core frame. FIG. 4 is an overall perspective view showing a charging device according to an embodiment of the present invention. FIG. 5 is an enlarged perspective view showing the gun pocket of FIG. 6 is a cross-sectional view taken along line VI-VI in FIG. FIG. 7 is a cross-sectional view showing another embodiment of the gun pocket of FIG.

<Outline of charging system 1>
A charging system that is one form of use of the charging device according to the present invention will be described with reference to FIG. The charging system 1 of this embodiment is applied when charging the secondary battery 6 mounted in an electric vehicle or a hybrid vehicle. The charging system 1 directly converts the three-phase AC power supplied from the three-phase AC power source 2 into single-phase AC power by the power conversion circuit 3, boosts or lowers the voltage to an appropriate voltage by the transformer 4, and then the rectifier The secondary battery 6 is charged after being converted into DC power by 5. The charging system 1 includes a smoothing circuit 7, a power supply breaker 11 that turns on and off the three-phase AC power supply 2, and a charging gun 12.

In the charging system 1, a filter circuit 8 that attenuates higher harmonics as a noise countermeasure is provided for each phase of output lines (indicated by R phase, S phase, and T phase) to which three-phase AC power is supplied from the three-phase AC power source 2. Is provided. The filter circuit 8 includes three filter reactors 81 connected to the phases R, S, and T, and six

filter capacitors

82L and 82R connected between the phases R, S, and T. The

filter capacitors

82L and 82R are composed of, for example, six filter capacitors 821 to 826.

In the charging system 1, three-phase AC power is supplied to the power conversion circuit 3 via the filter circuit 8 and converted into single-phase AC power. The power conversion circuit 3 includes six bidirectional switching elements 311 to 316 arranged in a matrix corresponding to the R phase, S phase, and T phase, and is also referred to as a matrix converter.

Bidirectional switching elements 311 to 316 are each composed of an IGBT module in which IGBTs, which are semiconductor switching elements, are combined in reverse parallel and connected in reverse parallel. Note that the configurations of the bidirectional switching elements 311 to 316 are not limited to those shown in the figure, and for example, a configuration in which two elements of reverse blocking IGBTs are connected in antiparallel.

Snubber circuits 321 to 326 in which one snubber capacitor 327 (refer to the circuit diagram on the lower right in FIG. 1) and three diodes are combined are provided on the input and output sides of the bidirectional switching elements 311 to 316, respectively. . As a result, the bidirectional switching elements 311 to 316 are protected from a surge voltage generated by the ON / OFF operation of the bidirectional switching elements 311 to 316.

The charging system 1 includes a matrix converter control circuit 9 for ON / OFF control of the bidirectional switching elements 311 to 316 of the power conversion circuit 3. The matrix converter control circuit 9 receives a voltage value supplied from the three-phase AC power source 2, a DC current value currently being output, a target current command value, and the like. The matrix converter control circuit 9 controls the gate signals of the bidirectional switching elements 311 to 316 on the basis of these input values, and adjusts the single-phase AC power output to the transformer 4 to thereby match the DC power that matches the target value. Get.

The transformer 4 increases or decreases the voltage of the single-phase AC power converted by the power conversion circuit 3 to a predetermined value. The rectifier 5 includes, for example, four rectifier diodes 51 to 54, and converts the regulated single-phase AC power into DC power. The smoothing circuit 7 includes a coil 71 and a capacitor 72, and smoothes the pulsating flow included in the rectified direct current to a state closer to direct current. The charging gun 12 is connected to the charging inlet 6a of the automobile to be charged with the DC power smoothed by the smoothing circuit 7, and supplies power therefrom.

As shown in FIG. 2, the charging system 1 of the present embodiment configured as described above converts the three-phase AC power supplied from the three-phase AC power source 2 through the power source breaker 11 and the filter circuit 8. It is supplied to the circuit 3. The three-phase AC power supplied to the power conversion circuit 3 is directly converted into single-phase AC power by the matrix converter control circuit 9 controlling the power conversion circuit 3. The single-phase AC power is further regulated to an appropriate voltage by the transformer 4 and then converted to DC power by the rectifier 5. The DC power is smoothed by the smoothing circuit 7 and then supplied to the secondary battery 6 via the charging gun 12, whereby the secondary battery 6 is charged. In addition, the charging system 1 mentioned above is an example, and the charging device according to the present invention is not limited to the charging system 1 having the illustrated configuration.

《Charger unit arrangement》
Next, an arrangement configuration of the charging device 1A including devices from the power breaker 11 to the charging gun 12 in FIG. 2 will be described with reference to FIG. The same components as those in FIGS. 1 and 2 are denoted by the same reference numerals to indicate the corresponding relationship.

The charging device 1A according to the present embodiment includes the power supply breaker 11, the filter reactor 81, the power conversion circuit 3, the matrix converter control circuit 9, the transformer 4, the rectifier 5, and the smoothing circuit 7 illustrated in FIG. To do. A cable 12a is pulled out from the housing 13, and a charging gun 12 is attached to the tip of the cable 12a. Devices mounted in the housing 13 are also referred to as power conversion devices.

The housing 13 is fixed to the installation location of the charging device 1A, and the core frame 14 for mounting the above-described power conversion device, the outer housing 15 attached to the core frame 14 so as to sandwich the core frame 14 from both sides thereof, Is provided. In addition, the both surfaces of the core frame 14 refer to the front and back in the illustrated example. Here, when the charging device 1A is installed, the surface that the user accesses is the front surface, and the opposite side (back surface) is the back surface.

The core frame 14 includes a base plate 141 that constitutes the bottom of the core frame 14, and a core frame main body 142 that is fixed to the base plate 141 and has a horizontal section bent into a U-shape. The base plate 141 is fixed to an installation location of the charging device 1A by a fixing means such as an anchor bolt. As a result, the core frame main body 142 stands upright at the installation location of the charging apparatus 1A and is firmly fixed.

As shown in FIG. 3, the outer housing 15 includes a first outer housing 15 a that is mounted on the core frame 14 from the front side, and a second outer housing 15 b that is mounted on the core frame 14 from the back side. Including. FIG. 4 shows an external view of the housing 13. The first outer housing 15a of the present embodiment includes a side plate bent so as to have a U-shaped horizontal section including a gentle curve, and a top plate, and the side plate and the top plate are fixed by welding or the like. Yes. As shown in FIG. 4, the front side plate is provided with an operation panel 151 for a user to access when performing a charging operation, and a gun pocket 17 for storing the charging gun 12 when not in use. It has been. Details of the gun pocket 17 will be described later.

The second outer housing 15b of the present embodiment is formed in a flat plate shape, for example, and the heat sink 10 attached to the power conversion circuit 3 and the rectifier 5 to the outside through the through hole where the fan 16 shown in FIG. A plurality of through holes such as through holes for exposure are provided. The first outer housing 15a and the second outer housing 15b are attached to the core frame 14, for example, by fixing their joints using bolts or screws. In the present embodiment, the first outer housing 15a is formed in a U-shaped cross section, and the second outer housing 15b is formed in a flat plate. However, the shape of the outer housing 15 according to the present invention is not particularly limited. Both the first and second

outer housings

15a and 15b may be formed in a U-shaped cross section.

As shown in FIG. 3, two spaces A partitioned by a first outer housing 15 a, a second outer housing 15 b, and a core frame main body 142 whose horizontal cross section is a U-shaped cross section are provided inside the housing 13. , B exist. That is, there are two spaces, a space A surrounded by the core frame main body 142 and a space B behind the space A. In the present embodiment, when the power conversion device is mounted on the core frame main body 142, a device that generates heat is mounted in the space A surrounded by the U-shaped cross section. That is, the power conversion circuit 3, the rectifier 5, and the transformer 4 that are devices that generate heat among the power conversion devices shown in FIGS. 2 and 3 are mounted on the space A side. At the same time, the fan 16 is provided in the through-hole formed in the second outer housing 15b shown in FIG. 3, and the cooling air is sucked and introduced into the space A.

On the other hand, the remaining devices in FIG. 2 can be mounted in the remaining spaces A and B. In this embodiment, the power conversion device is mounted in the core frame body 142 as much as possible in FIG. Lay out the equipment according to the power flow. That is, the power supply breaker 11, the filter reactor 81, the power conversion circuit 3, the matrix converter control circuit 9, the transformer 4, the rectifier 5 and the smoothing circuit 7 are arranged in this order. By arranging in this way, the imbalance between the phases due to the inductance and noise between the wires is suppressed, and the power conversion efficiency is improved.

Therefore, in this embodiment, the layout is as shown in FIG. That is, as shown in FIG. 3, the three-phase AC power source 2 such as a commercial power source is drawn from the base plate 141 of the core frame 14 and connected to the power source breaker 11 mounted on the top of the space A. Then, the wiring from the power breaker 11 is inserted through the through hole opened in the core frame main body 142 and connected to the filter reactor 81 mounted on the uppermost portion of the space B. The wiring from the filter reactor 81 is connected to the power conversion circuit 3 mounted in the next stage of the space A through the through-hole similarly opened in the core frame main body 142. A matrix converter control circuit 9 is mounted in the space B on the back surface of the power conversion circuit 3, and the control wiring from the matrix converter control circuit 9 is inserted through a through hole formed in the core frame main body 142. Connect to.

Originally, it is preferable to mount the transformer 4 at the next stage of the power conversion circuit in the space A. However, since the transformer 4 is heavy, in the present embodiment, the stability of the charging device 1A is considered. And mounted at the bottom of the space A. Accordingly, the wiring from the power conversion circuit 3 is connected to the transformer 4 mounted at the bottom of the space A, and the wiring from the transformer 4 is connected to the rectifier 5 mounted at the next stage of the power conversion circuit 3 in the space A. Connecting. Then, the wiring from the rectifier 5 is connected to the smoothing circuit 7 that is mounted in the lowermost part of the space B through the through hole opened in the core frame main body 142. The cable 12a to which the charging gun 12 is attached is pulled out from an appropriate location of the first outer housing 15a.

As described above, in the present embodiment, the casing 13 of the charging device 1A includes the core frame main body 142 in which the base plate 141 at the bottom is fixed at the installation location and the power conversion device is mounted, and the

outer housings

15a and 15b. did. The

outer housings

15a and 15b are detachably mounted so as to sandwich the core frame main body 142 from both surfaces thereof. Therefore, the filter reactor 81, the matrix converter control circuit 9, or the smoothing circuit 7 mounted in the space B can be inspected and maintained by removing the first outer housing 15a from the core frame main body 142. If the second outer housing 15b is removed from the core frame main body 142, the power breaker 11, the power conversion circuit 3, the rectifier 5 or the transformer 4 mounted in the space A can be inspected. As described above, the charging device 1A of the present embodiment is excellent in maintenance workability, and at the same time, the degree of freedom in design of the outer housing 15 is improved, and the charging device itself can be made compact.

In the present embodiment, the core frame main body 142 is formed so that the horizontal cross section is U-shaped, and the power conversion devices are mounted on both sides thereof, so that the integration rate is improved and the wiring length connecting the devices is shortened. can do.

In this embodiment, the core frame main body 142 is formed so that the horizontal cross section is U-shaped, and the power conversion circuit 3, the transformer 4 and the rectifier 5 with heat generation are placed in the space A surrounded by the U-shaped cross section. The cooling air is introduced into the space A by the fan 16. Since the space A is surrounded by a U-shaped cross section, it is excellent in air permeability even if it is as it is, and it is possible to suppress the accumulation of hot air. In this embodiment, since the fan 16 is further provided, the air introduced from the top of the space A is surrounded by the U-shaped cross section of the core frame main body 142 without diffusing as shown in FIG. Flow down A toward the bottom. Thereby, the apparatus accompanied with heat_generation | fever can be cooled. In addition, since the heat converting circuit 3 and the rectifier 5 that generate heat are provided with a heat sink 10 and the heat sink 10 is exposed to the outside through the through hole of the second outer housing 15b, the cooling performance can be further improved. .

In this embodiment, as shown in FIG. 3, the power breaker 11, the power conversion circuit 3, the rectifier 5 and the transformer 4 are arranged in this order. Therefore, the wiring lengths between the power conversion devices are made as uniform as possible, and the flow of each power between the theoretical circuit of the charging device 1A shown in FIG. 2 and the actual circuit shown in FIG. Can be increased.

《Gun pocket structure》
Next, the structure of the gun pocket 17 will be described. When the electric vehicle or the like is parked near the charging device 1A and the charging operation is started, the charging operator removes the charging gun 12 from the gun pocket 17 and places the charging gun 12 in the charging inlet 6a provided in the electric vehicle or the like. Installing. When the charging operation is completed, the charging operator removes the charging gun 12 from the charging inlet 6 a and stores the charging gun 12 in the gun pocket 17. As shown in FIG. 4, the gun pocket 17 of the present embodiment is provided in the front of the housing 13 and in the center of the first outer housing 15a in the height direction. The setting position of the gun pocket 17 is not particularly limited, but is preferably set to a height of about 1 m above the ground (the height of a human waist) so that the operator can easily perform the insertion / extraction operation.

The gun pocket 17 can be configured, for example, by providing an opening on the side surface of the first outer housing 15a and attaching a resin part to the opening. FIG. 5 shows a front perspective view of the gun pocket 17, and FIG. 6 shows a longitudinal sectional view thereof. The gun pocket 17 of the present embodiment is formed in a concave shape when viewed from the front side of the housing 13. Below, each range of the concave wall surface which comprises the gun pocket 17 is called the ceiling surface 17A, the back surface 17B, and the floor surface 17C as shown in FIG. Moreover, the part which is mutually opposing in a gun pocket width direction (horizontal direction in FIG. 4) among concave wall surfaces is called side surface 17D.

As shown in FIG. 6, the ceiling surface 17A is inclined so as to become higher from the near side toward the far side. The back surface 17B extends substantially downward from the back end of the ceiling surface 17A and is inclined so as to be positioned on the back side downward. The lower end of the back surface 17B is connected to the back end of the floor surface 17C. The floor surface 17C is inclined at a larger inclination angle than the ceiling surface 17A so as to increase from the near side to the far side. Both ends of the gun pocket width direction of the ceiling surface 17A, the back surface 17B, and the floor surface 17C are connected to the side surface 17D, respectively. The front end portions of the ceiling surface 17A, the floor surface 17C, and the pair of side surfaces 17D connected to each other define an opening of the gun pocket 17. In addition, the inclination angles of the ceiling surface 17A, the back surface 17B, and the floor surface 17C are not particularly limited, and can be appropriately changed according to the installation height of the gun pocket 17.

The concavely formed gun pocket 17 has a first restricting portion 171 formed on the ceiling surface 17A of the concave wall surface, a second restricting portion 172 formed on the floor surface 17C of the concave wall surface, and contacts the back surface 17B of the concave wall surface. A contact portion 173 is formed. When the charging gun 12 is stored in the gun pocket 17, the first restricting portion 171 contacts the top surface of the tip of the charging gun 12 and restricts the rotation and dropping of the charging gun 12 as shown by the one-dot chain line in FIG. 6. To do. Further, when the charging gun 12 is stored in the gun pocket 17, the second restricting portion 172 contacts the lower surface of the lever 121 of the charging gun 12 and rotates the charging gun 12 as shown in FIG. Regulate dropout. The contact portion 173 has a function of contacting the tip of the charging gun 12 when the charging gun 12 is inserted into the gun pocket 17 and allowing the operator to recognize the approximate storage position of the charging gun 12 in the gun pocket 17.

The first restricting portion 171 of the present embodiment is configured by a concave wall surface 17A, but the shape of the first restricting portion 171 is not particularly limited. The shape of the first restricting portion 171 is a shape that contacts the upper surface of the charging gun 12 when the charging gun 12 is inserted into the gun pocket 17 and released to restrict the rotation of the charging gun 12, that is, prevents the charging gun 12 from falling off. It may be sufficient, and can be appropriately changed according to the shape of the upper surface of the charging gun 12.

The second restricting portion 172 according to the present embodiment includes a floor surface 17C having a concave wall surface and a protrusion 174 that stands in a substantially vertical direction from the floor surface 17C. As shown in FIG. 5, a depression extending in the vertical direction (hereinafter referred to as a recess 17 C 1) is formed at the center part in the gun pocket width direction at the lower part of the floor surface 17 C (near the front end). 174 is formed inside the recess 17C1. The shape of the second restricting portion 172 is not particularly limited, and when the charging operator releases the charging gun 12 inserted into the gun pocket 17, it contacts the lower surface of the lever 121 and shifts from the rotation of the charging gun 12. Any shape that regulates dropping, that is, prevents the charging gun 12 from falling off may be used. The shape of the second restricting portion 172 can be appropriately changed according to the shape of the lower surface of the charging gun 12. For example, the second restricting portion 172 may be a groove formed on the floor surface 17 C instead of the protruding portion 174.

Further, the protrusion 174 is provided with a tongue 175 extending at an end toward the outside (front side) of the gun pocket 17 at the tip thereof. Since the tongue 175 increases the height of the protrusion 174, the charging gun 12 is more reliably prevented from falling off. Further, when the lever 121 is rotated by the tongue 175 from the position of the solid line in FIG. 6 to the position of the two-dot chain line, the lower surface of the lever 121 is smoothly fitted into the second restricting portion 172 without being caught by the protrusion 174.

In addition, the contact portion 173 of the present embodiment is configured by the back surface 17B of the concave wall surface, but the shape of the contact portion 173 contacts the tip of the charging gun 12 when it is inserted into the gun pocket 17. The shape of this embodiment is not limited as long as the approximate position of the charging gun 12 can be determined. The shape of the contact portion 173 can be changed as appropriate according to the shape of the tip of the charging gun 12, the height of the gun pocket 17, and the like. The contact portion 173 of the present embodiment is formed so as to be inclined with respect to the vertical direction because the gun pocket 17 is provided at the height of the human waist.

The gun pocket 17 is provided with a lock mechanism 18 for locking the charging gun 12 to the gun pocket 17 as shown in FIG. The lock mechanism 18 includes a fixing member 181 having a base end portion fixed to one of the left and right peripheral edge portions of the concave portion 17C1, and a rotation member 182 having a base end portion rotatably fixed to the other of the left and right peripheral edge portions. Prepare. A hole 183 is formed at the tip of the fixing member 181, and a hole 184 is also formed at the tip of the rotating member 182. Further, when the rotating member 182 is rotated to the horizontal position with the fixed portion of the base end portion as the rotation center, the hole 184 at the distal end portion overlaps the hole 183 of the fixing member 181. If there is nothing to support the rotating member 182, the rotating member 182 is rotated by its own weight with the fixed portion of the base end as the center of rotation and retracted from the opening of the recess 17 C 1, and is suspended as shown in FIG. 5. Can be.

As described above, the second regulating unit 172 receives the lever 121 of the charging gun 12 and regulates the rotation and displacement of the charging gun 12. At this time, the lever 121 is received in the recess 17C1 of the floor surface 17C. Then, the pivoting member 182 in a suspended state is manually rotated to a horizontal position, for example, so that the two

holes

183 and 184 are overlapped, and the pivoting member 182 is installed on the opening of the recess 17C1. In this state, the charging gun 12 can be locked to the gun pocket 17 by inserting a pin or a key into the two

holes

183 and 184.

As shown in FIG. 6, after the charging operator inserts the charging gun 12 into the gun pocket 17 and then loosens the gripping force of the charging gun 12, the charging gun 12 is centered on the rotation fulcrum RC due to its own weight. As a result, the rear end side is slightly rotated in the direction of lowering (clockwise in FIG. 6). In the present embodiment, the lock mechanism 18 is disposed below the rotation fulcrum RC in the vertical direction. The charging gun 12 cannot be removed from the gun pocket 17 simply by locking the lever 121 with the lock mechanism 18. Thus, according to this embodiment, the charging gun 12 can be locked and unlocked by the small lock mechanism 18 that locks only a part of the lever 121.

The relative positional relationship among the first and second restricting

portions

171 and 172, the contact portion 173, and the charging gun 12 in the vertical cross section of FIG. 6 can also be defined as follows.
When the charging gun 12 is rotated in the vertical direction (the direction in which the rear end moves up and down, clockwise or counterclockwise in FIG. 6) with the tip of the lever 121 engaged with the protrusion 174. The locus drawn by the upper end of the tip of the charging gun 12 intersects with the first restricting portion 171. In FIG. 6, a circle having a radius R 1 centering on the tip of the lever 121 and passing through the upper end of the tip of the charging gun 12 intersects the first restricting portion 171.
Further, when the charging gun 12 is rotated in the vertical direction with the tip of the lever 121 engaged with the protrusion 174, the locus drawn by the lower end of the tip of the charging gun 12 intersects with the second restricting portion 172. To do. In FIG. 6, a circle having a radius R 2 centering on the tip of the lever 121 and passing through the lower end of the tip of the charging gun 12 intersects the second restricting portion 172.
Further, when the charging gun 12 is rotated in the vertical direction while the tip of the charging gun 12 is in contact with the first restricting portion 171 or the contact portion 173, the locus drawn by the tip of the lever 121 is the protrusion 174 and the tongue. It does not intersect part 175. In FIG. 6, a circle having a radius R3 centering on the rotation fulcrum RC and passing through the lower end of the lever 121 does not intersect the protrusion 174 and the tongue 175. On the other hand, the rotating member 182 in the horizontal position intersects the locus drawn by the tip of the lever 121. In FIG. 6, the turning member 182 in the horizontal position is located inside a circle having a radius R3 centered on the rotation fulcrum RC.

FIG. 7 is a longitudinal sectional view showing another embodiment of the gun pocket 17 shown in FIGS. 5 and 6, and is a sectional view corresponding to FIG. The charging gun 12 according to the present embodiment is a charging gun 12 of a type in which the operation unit for operating the attaching / detaching mechanism is not the lever 121 as shown in FIG. Even for the charging gun 12 without the lever 121, the concave gun pocket 17 can be configured in the same manner as in the embodiment shown in FIG. That is, also in the concave gun pocket 17 of the present embodiment, the first restricting portion 171 is formed on the ceiling surface 17A of the concave wall surface, the second restricting portion 172 is formed on the floor surface 17C of the concave wall surface, and the back surface 17B of the concave wall surface. A contact portion 173 is formed.

However, the second restricting portion 172 of the present embodiment is erected on the floor surface 17 C of the concave wall surface as shown in FIG. 7, instead of the protrusion 174 that receives the tip of the lever 121, and the lower surface of the charging gun 12. It is comprised from the projection part 174 which contact | abuts. It is preferable that the tip of the hook protrusion 174 has a high friction coefficient with respect to the lower surface of the charging gun 12. As a result, it is possible to reliably prevent the charging gun 12 from being displaced from the gun pocket 17. In this case, a high friction coefficient member may be attached to the tip of the protrusion 174, or the protrusion 174 itself may be formed from a high friction coefficient material. Further, an engaging portion that engages with the lower surface of the charging gun 12 may be provided at the tip of the protruding portion 174.

Next, the operation will be described.
When the charging operation is finished and the charging gun 12 is stored in the gun pocket 17, the operator inserts the tip of the charging gun 12 into the gun pocket 17 while holding the handle 122 of the charging gun 12. Since the abutting portion 173 is formed on the back surface 17B of the gun pocket 17, the operator can make an appropriate position in the depth direction of the charging gun 12 when the tip end surface of the charging gun 12 abuts on the abutting portion 173. Can be grasped.

When the tip surface of the charging gun 12 comes into contact with the contact portion 173, the operator gradually loosens the gripping force of the handle 122. Thereby, as shown by the arrow in FIG. 6, the charging gun 12 slightly rotates clockwise around the rotation fulcrum RC by its own weight. By this rotation, the upper surface of the tip of the charging gun 12 comes into contact with the ceiling surface 17 A that is the first restricting portion 171, and the lower surface of the lever 121 of the charging gun 12 is received by the second restricting portion 172. In the embodiment of FIG. 7, the upper surface of the tip of the charging gun 12 abuts on the ceiling surface 17 A that is the first restricting portion 171, and the lower surface of the middle of the charging gun 12 is the protrusion portion 174 that is the second restricting portion 172. Abuts the tip.

As a result, the rotation of the charging gun 12 in the clockwise direction is restricted, and the weight of the cable 12a connected to the proximal end side of the charging gun 12 causes the charging gun 12 to always move in the direction of the arrow (clockwise in FIG. 6). ) Acts to rotate. For this reason, the force acting on the charging gun 12 from the first restricting portion 171 and the second restricting portion 172 increases, and the charging gun 12 attached to the gun pocket 17 is more reliably prevented from falling out of the gun pocket 17. The

Then, if necessary, the rotation member 182 of the lock mechanism 18 is rotated to the horizontal position, the hole 183 of the fixing member 181 and the hole 184 of the rotation member 182 are overlapped, and pins 183 and 184 are pinned. The charging gun 12 cannot be removed by inserting the padlock.

On the other hand, when the charging operation is started from the state in which the charging gun 12 is locked to the gun pocket 17, the operator first removes the pins and padlocks inserted through the

holes

183 and 184 of the locking mechanism 18. Thereby, the rotating member 182 automatically hangs so as to be retracted from the opening of the recess 17C1 by its own weight. Next, the operator holds the handle 122 of the charging gun 12 and slightly rotates the handle 122 upward (in the direction opposite to the arrow shown in FIGS. 6 and 7).

By moving the handle 122 upward and slightly rotating the charging gun 12, the locking between the charging gun 12 and the gun pocket 17 is released. That is, the engagement between the top surface of the tip of the charging gun 12 and the ceiling surface 17 A as the first restricting portion 171 and the engagement between the bottom surface of the lever 121 of the charging gun 12 and the second restricting portion 172 are released. Thereby, the operator can draw out the charging gun 12 as it is.

According to the above embodiment, it has the following effects.
(1) In the present embodiment, since the two restricting

portions

171 and 172 for restricting the upper and lower surfaces of the charging gun 12 are provided in the concave gun pocket 17, these two restricting

portions

171 and 172 are caused by the weight of the charging gun 12. Thus, the charging gun 12 can be fixed without dropping off. The charging gun 12 can be attached and detached with a very simple operation.

(2) In the present embodiment, the second restricting portion 172 includes a protruding portion 174 that stands in the vertical direction, and the protruding portion 174 engages with the lever 121 of the charging gun 12. It is also possible to suppress the slippage from the gun pocket 17.

(3) In the present embodiment, the protrusion 174 has a tongue 175 extending at an inclination at the tip thereof, so that when the charging gun 12 rotates and the lever 121 is received by the second restricting portion 172, The lever 121 is smoothly set without being caught by the protrusion 174.

(4) In the present embodiment, the back surface 17 B of the gun pocket 17 is provided with a contact portion 173 that faces the front end surface of the charging gun 12. For this reason, when the charging gun 12 is set, the operator can grasp the position of the charging gun 12 in the depth direction by abutting the front end surface of the charging gun 12 against the contact portion 173.

(5) In the present embodiment, since the contact portion 173 is formed to be inclined with respect to the vertical direction according to the height of the gun pocket 17, the tip surface of the charging gun 12 comes into contact with the contact portion 173. Thus, the operator can more accurately grasp the position in the depth direction.

(6) In the present embodiment, in addition to the first restricting portion 171 and the second restricting portion 172 constituting the rotation restricting portion, the lock mechanism 18 is provided below the rotation fulcrum of the charging gun 12 in the vertical direction. The charging gun 12 can be firmly locked even with a small locking mechanism.

(7) In this embodiment, since the lock mechanism 18 is installed in the opening of the recess 17C1 that receives the lever 121 of the charging gun 12, the lock mechanism 18 does not protrude from the gun pocket 17 and is smaller. The locking mechanism 18 can be used.

(8) In the present embodiment, the rotating member 182 constituting the lock mechanism 18 hangs so as to retract from the opening of the recess 17C1 due to its own weight when unlocked, so that the charging gun 12 can be pulled out immediately after unlocking. it can.

As mentioned above, although embodiment of this invention was described, these embodiment is only the mere illustration described in order to make an understanding of this invention easy, and this invention is not limited to the said embodiment. The technical scope of the present invention is not limited to the specific technical matters disclosed in the above embodiment, but includes various modifications, changes, alternative techniques, and the like that can be easily derived therefrom.

This application claims priority based on Japanese Patent Application No. 2011-234620 filed on October 26, 2011, the entire contents of which are incorporated herein by reference.

When the charging gun is stored in the concave gun pocket, the charging gun tries to fall off while rotating slightly in the concave gun pocket due to its own weight, but according to the present invention, the rotation restricting portion restricts the rotation of the charging gun. For this reason, even if it does not provide a lock mechanism so that most charging guns may be covered, a charging gun can be locked only by providing only below a rotation fulcrum. As a result, the lock mechanism can be reduced in size.

1 ... Charging system
1A ... Charging device
2. Three-phase AC power supply
3. Power conversion circuit
311 to 316 ... Bidirectional switching element
321 to 326 ... Snubber circuit
327 ... Snubber capacitor
4 ... Trans
5 ... Rectifier
6 ... Secondary battery
7. Smoothing circuit
8 ... Filter circuit
81 ... Filter reactor
82L, 82R, 821-826 ... Filter capacitors
9 ... Matrix converter control circuit
10 ... Heatsink
11 ... Power breaker
12 ... Charge gun
121 ... Lever
12a ... Cable
13 ... Case
14 ... Core frame
141 ... Base plate
142 ... Core frame body
15 ... Outer housing
15a ... 1st outer housing 15b ... 2nd outer housing
151. Operation panel
16 ... Fan
17 ... Gun pocket
17A ... Ceiling
17B ... back
17C ... Floor
17C1 ... recess
171 ... 1st regulation part
172 ... Second regulating part
173 ... Abutting part
18 ... Lock mechanism
181: Fixing member
182 ... Rotating member
183, 184 ... holes
RC ... Rotation fulcrum

Claims

A housing,
A cable drawn from the housing;
A charging gun provided at the end of the cable;
A concave gun pocket provided in the housing for storing the charging gun; and
The concave gun pocket is
A rotation restricting portion for restricting rotation of the charging gun when the charging gun is stored;
A charging device comprising: a locking mechanism that is provided vertically below the rotation fulcrum of the charging gun and that locks the charging gun.
The charging device according to claim 1, wherein the lock mechanism is installed in an opening of a recess that receives a part of the charging gun.
The charging device according to claim 2, wherein the lock mechanism is retracted from the opening of the recess by its own weight when unlocked.