JP2012191701A - Structure for charging/discharging storage battery of battery-mounted equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate a charge and replacement of a storage battery of battery-mounted equipment.SOLUTION: A structure for charging/discharging a storage battery of battery-mounted equipment includes: a storage battery storage rack 20 for storing a storage battery removed from battery-mounted equipment 14; a connection terminal 23 electrically connectable with the storage battery inside; a first charge circuit 24 for charging the storage battery with power output from a private generating power supply apparatus 62; a second charge circuit 28 for charging the storage battery with power supplied from house wiring 26; a discharge circuit 30 for outputting power from the storage battery to the house wiring 26; and a selector switch 32 for switching the interconnection between the first charge circuit 24, second charge circuit 28 and discharge circuit 30 and the storage battery. A battery movement mechanism is provided, and the storage battery is provided with two or more sets of connection terminals 22a, 22b having the same function on respective differently oriented surfaces.

Description

  The present invention relates to a storage battery charge / discharge structure of a storage battery mounted device that can easily charge and replace the storage battery.

Solar power generators and wind power generators have been widely put into practical use as power sources using renewable energy. In addition, fuel cells using clean energy have been put into practical use as next-generation private power generation power supply devices.
The electric power supplied by these private power generation devices is consumed by the home appliances, and the surplus is stored in the storage battery. On the other hand, the frequency of use of storage battery-equipped devices such as electric vehicles is increasing, and techniques for installing storage battery charging terminals in buildings such as ordinary homes have been introduced.

JP 2010-200405 A

The known prior art has the following problems to be solved.
For example, charging an electric vehicle cannot be performed outdoors when it rains. From the point of view of crime prevention and safety, it is preferable that the owner performs charging at home. In addition, when an electric cord is connected to an electric vehicle for charging, it takes a long time for charging. In order to solve such a problem, the above-mentioned patent document describes a technique in which a storage battery of an electric vehicle is removed and attached to a charging device in a house for charging, and the storage battery is replaced with a previously charged storage battery. Has been.
In order to solve the above problems, an object of the present invention is to provide a storage battery charging / discharging structure of a storage battery mounted device that can easily charge and replace the storage battery of the storage battery mounted device.

The following configurations are means for solving the above-described problems.
<Configuration 1>
A storage battery storage shelf that is provided on the wall of the building and stores the storage battery taken out from the storage battery mounted device, a connection terminal that is electrically connected to the stored storage battery inside the storage battery storage shelf, and is electrically connected to the connection terminal A first charging circuit for charging the storage battery with the power output from the private power generation device provided in the building; and the storage battery is electrically connected to the connection terminal and supplied with the power supplied from the building's home wiring. A second charging circuit, a discharge circuit that is electrically connected to the connection terminal and outputs power from the storage battery toward the home wiring, and operates the first charging circuit to connect the first charging circuit and the connection Connecting the terminal, disconnecting the connection between the second charging circuit and the discharging circuit and the connecting terminal, operating the second charging circuit, and connecting the second charging circuit and the connecting terminal. Connecting the first charging circuit and the discharge circuit to the connection terminal, operating the discharge circuit to connect the discharge circuit to the connection terminal, and A storage battery charging / discharging structure for a storage battery-equipped device, comprising: a changeover switch that switches between a circuit and a second charging circuit and a state in which the connection between the connection terminal and the connection terminal is disconnected.

<Configuration 2>
In the storage battery charging / discharging structure of the storage battery mounted device according to Configuration 1, the storage battery taken out from the storage battery mounted device is moved to the storage battery storage shelf while being placed, and the storage battery taken out from the storage battery storage shelf is placed A storage battery charging / discharging structure for a storage battery mounted device, comprising a battery moving mechanism for moving the storage battery mounted device to the storage battery mounted device.

<Configuration 3>
The storage battery charging / discharging structure for a storage battery mounted device according to Configuration 2, wherein the battery moving mechanism is provided with a slide surface on which the storage battery can be slid and moved while the storage battery is mounted. Discharge structure.

<Configuration 4>
The storage battery charging / discharging structure for a storage battery mounted device according to Configuration 2 or 3, wherein the battery moving mechanism is provided with a lifting mechanism for moving up and down the position of the storage battery while the storage battery is mounted. Charge / discharge structure.

<Configuration 5>
It is used for the storage battery charging / discharging structure of the storage battery-equipped device according to Configuration 1, wherein the storage battery is a pair of connection terminals, and two or more connection terminals having exactly the same function, A storage battery for a storage battery-equipped device, characterized in that the storage battery is arranged on different surfaces.

<Configuration 6>
It is used for the storage battery charging / discharging structure of the storage battery mounted device described in the configuration 1, and a connection terminal dedicated to electrical connection to the storage battery mounted device is provided on one surface, and the storage battery storage shelf is provided on the back surface. A storage battery for a battery-equipped device, characterized in that a terminal dedicated for electrical connection is provided.

<Configuration 7>
It is used for the storage battery charge / discharge structure of the storage battery mounted device according to the configuration 6, wherein the connection terminals having exactly the same structure and shape are arranged on the surfaces of the storage battery 16 that are opposite to each other, and the middle between both terminals A storage battery for a storage battery-equipped device, characterized by having a symmetric structure with respect to a plane through which the battery passes.

<Effect of Configuration 1>
A storage battery storage shelf that can store a storage battery taken out from the storage battery mounted device is provided on the wall of the building, and the storage battery can be charged or discharged from the storage battery while the storage battery is stored therein. The state of charging the storage battery and the state of using the power of the storage battery can be freely switched by the changeover switch. Storage batteries used for charging and discharging inside buildings and storage batteries such as electric vehicles can be shared.
<Effect of Configuration 2>
A relatively heavy storage battery can be easily transported during replacement.
<Effect of Configuration 3>
The storage battery can be easily moved back and forth on the upper surface of the battery moving mechanism, and the work of placing or dropping the storage battery becomes easy.
<Effect of Configuration 4>
The storage battery can be easily moved up and down on the upper surface of the battery moving mechanism, and the work of placing or dropping the storage battery becomes easy.
<Effect of Configuration 5>
If connection terminals with the same function are arranged on different surfaces, the storage battery can be easily installed on storage battery storage devices and storage battery storage shelves by simply moving in parallel without turning the battery transfer mechanism with the storage battery. Can be installed.
<Effect of Configuration 6>
Similar to Configuration 5, the battery moving mechanism with the storage battery can be transported without going around.
<Effect of Configuration 7>
Regardless of where you wear it, it is extremely easy to handle.

It is a perspective view which shows the storage battery charging / discharging structure of the storage battery mounting apparatus of Example 1. FIG. It is a principal part longitudinal cross-sectional view of a storage battery charging / discharging structure. It is a perspective view of a battery moving mechanism. It is a principal part expansion side view of a battery moving mechanism. It is a perspective view of the storage battery used for an Example. 6 is a perspective view of a battery moving mechanism according to Embodiment 2. FIG. It is a top view, such as a storage battery, showing the details of the connection terminal structure. FIG. 3 is a specific connection diagram of the circuit board described in FIG. 2.

  Hereinafter, embodiments of the present invention will be described in detail for each example.

FIG. 1 is a perspective view showing a storage battery charging / discharging structure 10 of the storage battery mounted device 14 of the first embodiment. FIG. 2 is a longitudinal sectional view of the main part of the storage battery charge / discharge structure 10.
The storage battery charging / discharging structure 10 shown in the figure is provided in the vicinity of a wall surface 12 of a building. A storage battery storage shelf 20 is fixed to the wall surface 12 of the building. In the example of this figure, the storage battery mounted device 14 is an electric vehicle. A storage battery 16 for driving a motor is mounted on the electric vehicle.

  The storage battery storage shelf 20 includes a plurality of shelves for storing the storage batteries 16 taken out from the storage battery mounted device 14. The storage battery storage shelf 20 can store, for example, storage batteries 16 taken out from various types of storage battery mounted devices 14 such as an electric bicycle as well as an electric vehicle. A connection terminal 23 for charging the stored storage battery 16 is provided inside the storage battery storage shelf 20. The connection terminal 23 is electrically connected to the connection terminal 22 of the storage battery 16.

  As shown in FIG. 2, the connection terminal 23 and the connection terminal 22 can be attached and detached by grasping the handle 18 and inserting and removing the storage battery 16 from the storage battery storage shelf 20. In order to charge the storage battery 16, a circuit board 21 on which a charging circuit is mounted is provided inside the storage battery storage shelf 20. This will be described later with reference to FIG. In FIG. 1, the storage battery storage shelf 20 is provided with a door 19 and can be locked. Therefore, the storage battery storage shelf 20 may be attached to the outer wall of the building. As shown in FIG. 2, in this embodiment, the storage battery storage shelf 20 is embedded in the wall of the inner garage surrounded by the shutter 13.

  As shown in FIGS. 1 and 2, in order to charge the storage battery 16 mounted on the storage battery mounted device 14, the storage battery 16 is removed and mounted on the storage battery storage shelf 20. When the charging is completed, the storage battery 16 is transferred from the storage battery storage shelf 20 to the storage battery mounted device 14. The storage battery 16 is relatively heavy. Therefore, in this embodiment, the battery moving mechanism 34 is used. The battery moving mechanism 34 includes a slide surface 36 on which the storage battery 16 is placed, a wheel 41 for moving the battery moving mechanism 34, and an elevating mechanism 40 that moves the slide surface 36 up and down.

FIG. 3 is a perspective view of the battery moving mechanism 34. FIG. 4 is an enlarged side view of the main part.
The slide surface 36 of the battery moving mechanism 34 is provided with a roller 38 on its upper surface. The storage battery 16 is pulled out on the roller 38. Since the roller 38 rotates freely in the direction of arrow B, the storage battery 16 moves freely in the direction of arrow A. After the battery moving mechanism 34 is largely moved by the wheel 41, the height of the storage battery 16 is adjusted by the lifting mechanism 40. Thereafter, the storage battery 16 is moved on the slide surface 36 in the direction of arrow A, and the storage battery 16 is stored in the storage battery storage shelf 20 or mounted on the storage battery mounted device 14.

FIG. 5 is a perspective view of a storage battery used in the above embodiment.
In this embodiment, as shown in the figure, the connection terminals 22a and 22b are provided on the opposite surfaces of the storage battery 16 in different directions. These connection terminals are a pair and have exactly the same function. That is, charging and discharging can be performed regardless of which is used for electrical connection.

  Two or more sets of connection terminals 22 may be arranged on any surface with different orientations. Moreover, these connection terminals should just have the same electrical connection function, and may differ in a size and a terminal shape. The internal connection for providing the same function will be described later with reference to FIG.

  The connection terminals 22a and 22b having the same function are arranged on different surfaces as shown in FIG. In this way, the storage battery 16 can be easily mounted on the storage battery mounted device 14 or the storage battery storage shelf 20 by simply moving in parallel without rotating the battery moving mechanism 34 on which the storage battery 16 is placed. Further, a connection terminal dedicated to electrical connection to the storage battery mounted device 14 may be provided on one surface, and a terminal dedicated to electrical connection to the storage battery storage shelf 20 may be provided on the surface corresponding to the back surface. This also provides an effect that the battery moving mechanism 34 with the storage battery 16 mounted thereon does not need to be rotated greatly.

  The battery moving mechanism 34 described with reference to FIGS. 1 to 4 can be moved to the storage battery storage shelf 20 with the storage battery 16 taken out from the storage battery mounted device 14 placed thereon. Further, the storage battery 16 taken out from the storage battery storage shelf 20 can be moved to the storage battery mounted device 14 while being placed. The battery moving mechanism 34 and the storage battery storage shelf 20 may be slightly separated.

  Furthermore, since the slide surface 36 that can be moved by sliding in one direction with the storage battery 16 mounted thereon is provided, for example, the connection terminal 22a is connected to the connection terminal 23 of the storage battery storage shelf 20, and the connection terminal 22b is connected to the storage battery mounted device 14. If it operates so that it may connect to the connection terminal which is not shown in figure inside, the storage battery 16 only needs to be moved in parallel. There is an effect that safety is improved as compared with rotating the heavy storage battery 16 while moving it.

FIG. 6 is a perspective view of the battery moving mechanism according to the second embodiment.
As in the first embodiment, the structure that can freely move like a general carriage is effective when the parking lot and the storage battery storage shelf 20 are separated from each other. On the other hand, the storage battery storage shelf 20 can also be attached to the outer wall of a building or the inner wall of an inner garage. Therefore, it is also possible to park an electric vehicle or the like in close proximity. In this case, the battery moving mechanism of FIG. 6 is suitable.

  In this embodiment, the universal arm 44 is fixed to the wall surface 12 of the building, similar to the storage battery storage shelf 20. The horizontal arm 46 of the free arm 44 fixes the rotation shaft provided at one end to the wall surface 12 of the building, and freely swings the other end in the direction of arrow C. A cylinder 48 is fixed to the other end of the horizontal arm 46. The cylinder 48 has a slide surface 36 fixed to the upper surface. The cylinder 48 moves the slide surface 36 up and down in the direction of arrow D. Further, the slide surface 36 is supported so as to be rotatable in the arrow E direction.

  The lifting mechanism may be manually operated or moved up and down by hydraulic pressure or air pressure. Further, for example, if the slide surface 36 can be folded small, the entire free arm 44 can be pressed against the wall surface 12 of the building so that a space is not taken up. Further, in both cases of the first embodiment and the second embodiment, the protective cover 42 is put on the upper surface of the slide surface 36 to protect it from rain during transportation and to protect the safety surface from touching the connection terminals. Is possible.

FIG. 7 is a plan view of a storage battery and the like showing details of the connection terminal structure.
In the example of the figure, an example is shown in which connection terminals having exactly the same structure and shape are arranged so as to face each other on both opposing surfaces of the storage battery 16. The storage battery 16 has a bilaterally symmetric structure as viewed from the plan view. A female terminal 54a and a female terminal 54b made of a positive electrode and a negative electrode are arranged on both the left and right sides. On the other hand, the receiving terminal 50a is provided in the storage battery storage shelf 20 side. The receiving terminal 50a is provided with a male terminal 52a.

  Moreover, the receiving terminal 50b is provided in the storage battery mounting apparatus 14 side. The receiving terminal 50b is provided with a male terminal 52b. Thereby, when the storage battery 16 is stored in the storage battery storage shelf 20, the male terminal 52a and the female terminal 54a are electrically connected to charge the storage battery 16. When mounted on the storage battery mounted device 14, the male terminal 52b and the female terminal 54b are electrically connected to drive a motor or the like. In this embodiment, the connection terminals having exactly the same structure and shape are arranged on the back surface of the storage battery 16 and are symmetrical with respect to the surface G passing through the middle of both terminals. There is an effect that it is extremely easy to handle.

FIG. 8 is a specific connection diagram of the circuit board 21 described in FIG.
As shown in FIG. 8, the circuit board 21 provided in the storage battery storage shelf 20 includes a first charging circuit 24, a second charging circuit 28, a discharging circuit 30, and a changeover switch 32. The changeover switch 32 is provided with a connection terminal 23 to which the connection terminal 22a of the storage battery 16 is connected.

  The first charging circuit 24 is a circuit that charges the storage battery with the power output from the private power generation device 62 provided in the building. The second charging circuit 28 is a circuit that charges the storage battery with the power supplied from the building wiring 26 in the building. The discharge circuit 30 is a circuit that outputs power from the storage battery toward the home wiring 26. Both are connected to the connection terminal 22 a of the storage battery 16 via the changeover switch 32.

  This circuit is in three states by switching the changeover switch 32. In the first state, the first charging circuit 24 is operated, the first charging circuit 24 and the connection terminal 22 are connected, and the connection between the second charging circuit 28 and the discharge circuit 30 and the connection terminal 22 is disconnected. It is. This is a state in which the storage battery 16 is charged by the private power generation power supply device 62.

  In the second state, the second charging circuit 28 is operated, the second charging circuit 28 and the connection terminal 22 are connected, and the connection between the first charging circuit 24 and the discharge circuit 30 and the connection terminal 22 is disconnected. It is. In this state, the storage battery 16 is charged from the transmission / distribution electric line 56 through the home wiring 26.

  The third state is a state in which the discharge circuit 30 is operated, the discharge circuit 30 and the connection terminal 22 are connected, and the connection between the first charging circuit 24 and the second charging circuit 28 and the connection terminal 22 is disconnected. . In this embodiment, not only the storage battery 16 of the storage battery mounted device 14 is charged, but also the power of the storage battery mounted device 14 can be used on the home wiring 26 side. Hereinafter, a more specific configuration of each part of the circuit as described above will be described.

[Power supply]
In a general house or the like, the power supplied from the transmission / distribution electric line 56 or the private power generation power supply device 62 is used. There are various types of private power generation power supply devices 62. A solar power generation device converts solar energy into electric energy and outputs the electric energy. A wind turbine generator is a device that converts wind energy into electrical energy and outputs the electrical energy.

  A fuel cell is a device that generates power using hydrogen or the like as fuel. Those using natural gas have been put into practical use. In addition, a power supply device that converts thermal energy and hydraulic wave power into electric energy and outputs the same can also be included in the private power generation power supply device 62.

[Storage battery equipment]
Examples of the storage battery mounted device 14 include an electric vehicle, an electric motorcycle and a scooter, and an electric assist type bicycle. There are electric vehicles that run only with an electric motor and so-called hybrid vehicles. In addition, electric wheelchairs, agricultural machines, electric industrial equipment, etc. are also equipped with storage batteries. Any of these storage batteries can utilize the above-described storage battery charge / discharge structure.

[Transmission and distribution line and home wiring]
The transmission and distribution line 56 is a line for supplying commercial power from an electric power company. The in-home wiring 26 is connected to the transmission / distribution electric line 56 and the distribution board 58 and the like. The in-house wiring 26 is a power distribution facility separated by a power receiving facility such as a power transmission / distribution line 56 and a distribution board 58, and is a facility for a resident such as a house or a condominium to use a commercial power source. The distribution board 58 is a device having a built-in branch circuit for circuit distribution, a breaker, or the like.

[Storage battery]
A storage battery is a secondary battery having a function of storing and discharging electric power by charging and discharging. The private storage battery accumulates electric power supplied from the transmission / distribution electric line 56 and electric power supplied from the private power generation power supply device 62. In this invention, while providing the mechanism which charges the storage battery 16 of the storage battery mounting apparatus 14, the storage battery can be used similarly to the storage battery for installation in a building. That is, since the storage battery used for charging and discharging inside the building and the storage battery such as an electric vehicle can be shared, for example, even if the storage capacity of the storage battery mounted device 14 is reduced and the performance is reduced, Can be diverted for installation.

  In addition, the storage battery 16 of the storage battery mounted device 14 is, for example, provided with a connection terminal 22 by integrating a storage battery module 66 and a charge / discharge control circuit 64 as shown in FIG. In the embodiment of this figure, two sets of connection terminals, that is, a connection terminal 22a and a connection terminal 22b are provided. Both are electrically equivalently connected. The charge / discharge control circuit 64 is a protection circuit for preventing overcharge, overdischarge, or overcurrent during a short circuit.

[Specific example of circuit]
The first charging circuit 24 controls, for example, a DC-DC converter that converts a DC voltage output from the photovoltaic power generator into a voltage suitable for charging the storage battery, a current control circuit that controls the charging current, and a charging time. A timer is provided. For example, the second charge control circuit 64 is connected to the AC 100 volt home wiring 26 and is converted to a DC voltage suitable for charging the storage battery, a current control circuit for controlling the charge current, and a charge time. A timer for controlling the operation is provided. The discharge circuit 30 includes a DC-AC converter that connects to a storage battery and outputs an AC voltage for the home wiring 26, an overcurrent protection circuit, and the like.

  As described above, if the storage battery storage shelf 20 that can store the storage battery taken out from the storage battery mounted device 14 is provided on the wall surface 12 of the building, the storage battery of the storage battery mounted device 14 can be easily connected to the charging mechanism inside the building. Can do. Furthermore, since the state which charges a storage battery and the state which uses the electric power of a storage battery can be freely switched by the changeover switch 32, the storage battery currently used for charging / discharging in the inside of a building and storage batteries, such as an electric vehicle, can be shared. .

  In particular, if the storage battery and the storage battery 14 are used for the same standard, it is only necessary to replace the plurality of storage batteries 16 mounted in the storage battery 14 with storage batteries in the charged storage battery storage shelf 20. There is an effect that the storage battery mounted device 14 can be used immediately. If a plurality of storage batteries 16 are mounted on the storage battery-equipped device 14, only a part of them can be taken out and replaced, and the degree of freedom for charging work is high. Needless to say, an environment capable of charging with an existing AC 200 volt outlet may also be provided.

DESCRIPTION OF SYMBOLS 10 Storage battery charge-and-discharge structure of storage battery mounted device 12 Wall surface 13 of shutter 14 Storage battery mounted device 16 Storage battery 18 Handle 19 Door 20 Storage battery storage shelf 21 Circuit board 22 Connection terminal 23 Connection terminal 24 First charging circuit 26 In-home wiring 28 Second charge Circuit 30 Discharge circuit 32 Changeover switch 34 Battery moving mechanism 36 Slide surface 38 Roller 40 Lifting mechanism 41 Wheel 42 Protective cover 44 Free arm 46 Horizontal arm 48 Cylinder 50 Receiving terminal 52 Male terminal 54 Female terminal 56 Power distribution line 58 Distribution board 62 In-house power generation device 64 Charge / discharge control circuit 66 Storage battery module

Claims (7)

A storage battery storage shelf that is provided on the wall of the building and stores storage batteries taken out from the storage battery mounted device,
Inside the storage battery storage shelf, a connection terminal that is electrically connected to the stored storage battery,
A first charging circuit that is electrically connected to the connection terminal and charges the storage battery with electric power output from a private power generation device provided in the building;
A second charging circuit that is electrically connected to the connection terminal and charges the storage battery with electric power supplied from the in-house wiring of the building;
A discharge circuit that is electrically connected to the connection terminal and outputs power from the storage battery toward the home wiring;
Operating the first charging circuit, connecting the first charging circuit and the connection terminal, and disconnecting the connection between the second charging circuit and the discharge circuit and the connection terminal; and the second charging Operating the circuit, connecting the second charging circuit and the connection terminal, disconnecting the connection between the first charging circuit and the discharge circuit and the connection terminal, and operating the discharge circuit, A switching switch that connects the discharge circuit and the connection terminal and switches between the first charging circuit, the second charging circuit, and the connection terminal is disconnected. Storage battery charge / discharge structure for storage battery mounted equipment. In the storage battery charging / discharging structure of the storage battery mounted device according to claim 1,
A battery moving mechanism for moving the storage battery taken out from the storage battery mounted device to the storage battery storage shelf while carrying the storage battery, and moving the storage battery taken out from the storage battery storage shelf to the storage battery mounted device; Storage battery charging / discharging structure for battery-equipped equipment. In the storage battery charge / discharge structure of the storage battery mounted device according to claim 2,
A storage battery charging / discharging structure for a storage battery-equipped device, wherein the battery moving mechanism is provided with a slide surface on which the storage battery can be slid and moved while the storage battery is mounted. In the storage battery charging / discharging structure of the storage battery mounted device according to claim 2 or 3,
A storage battery charging / discharging structure for a storage battery-equipped device, wherein the battery moving mechanism is provided with a lifting mechanism that lifts and lowers the position of the storage battery while the storage battery is mounted. It is used for the storage battery charging / discharging structure of the storage battery mounted device according to claim 1,
The storage battery is a pair of connection terminals, and two or more sets of connection terminals having exactly the same function are arranged on different surfaces, respectively. It is used for the storage battery charging / discharging structure of the storage battery mounted device according to claim 1,
A storage battery for a storage battery-equipped device, characterized in that a connection terminal dedicated to electrical connection to the storage battery-equipped device is provided on one surface, and a terminal dedicated to electrical connection to the storage battery storage shelf is provided on the rear surface. It is used for the storage battery charging / discharging structure of the storage battery mounted device according to claim 6,
A storage battery for a storage battery-equipped device, characterized in that the connection terminals having exactly the same structure and shape are arranged on the back surface of the storage battery 16 and symmetrical with respect to a surface passing through the middle of both terminals. .

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