JP5443909B2 - building - Google Patents

Description

  The present invention relates to a building, and more particularly, to a building including a charging device that charges a storage battery mounted on an automobile.

  In recent years, in order to prevent global warming, for the purpose of reducing CO2, etc., hybrid vehicles equipped with storage batteries and powered by engines and motors have become popular, and attention has also been paid to electric vehicles equipped with storage batteries. I'm starting to collect.

  At the same time, a charging device for charging a storage battery mounted on a hybrid vehicle or an electric vehicle attracts attention.

  As such a charging device, for example, a technique described in Patent Document 1 has been proposed. In the technique described in Patent Document 1, an electric vehicle and a charger provided in a house are electrically connected, and a required amount of electric power required for normal use is calculated from the daily electric energy consumed by the electric vehicle. When power is supplied from a battery to a house, there has been proposed a power management system that supplies power while limiting the amount of reserved power from the remaining capacity of the battery. In the power management system, charging of the battery of the electric vehicle is started at the midnight power time zone.

Japanese Patent No. 3985390

  However, although the technique described in Patent Document 1 proposes to start charging at the time of late-night power hours, it does not take into account the end time of charging, so a storage battery mounted in an automobile is inexpensive. There is room for improvement in terms of charging.

  The present invention has been made in consideration of the above facts, and an object thereof is to charge a storage battery mounted on an automobile at low cost.

In order to achieve the above-mentioned object, the invention according to claim 1 is for electrically connecting a system power source which is a power rate plan divided into at least three hours or more and a storage battery mounted in an automobile. and connecting means, the time zone that can provide the cheapest power of electricity rate plan, to supply power to the connected storage battery to the connection means, and control means for controlling the charging of the battery, the Display means for displaying information related to charging of the storage battery, and the control means determines whether or not a charge amount within a time zone in which the cheapest power can be supplied can secure a required charge amount, When it is determined that the required charge amount cannot be secured with the charge amount within the time period in which the cheapest power can be supplied, the information indicating that the change in the power supply contract is urged is displayed. So that the controls the display unit.

  According to the first aspect of the present invention, the connection means electrically connects the system power source, which is a power rate plan divided into at least three hours or more, and the storage battery mounted on the automobile.

Then, in the control means, charging of the storage battery is controlled so that power is supplied to the storage battery connected to the connection means in a time zone in which the cheapest power can be supplied in the power rate plan. That is, since the storage battery can be charged using the cheapest power among the power rate plans divided into three or more time zones, the storage battery mounted on the automobile can be charged at a low cost.
In addition, the display means displays information related to the charging of the storage battery, and the control means determines whether or not the charge amount within the time zone in which the least expensive power can be supplied can secure the required charge amount, and the least expensive power The display means controls to display information that prompts the user to change the power supply contract when it is determined that the required charge amount cannot be secured with the charge amount within the time period during which the power supply can be supplied. Is done. That is, since there is a case where it is possible to reduce the power charge by changing the power contract, it is possible to review the charge by displaying the prompt to change the power supply contract.

  Note that, as in the invention described in claim 2, the control means supplies power to the storage battery so as not to exceed a predetermined contracted power supply amount in a time zone in which the cheapest power can be supplied. You may make it control charging. That is, since the charge increases when the combined power of the storage battery and other power becomes equal to or greater than the contract supply power, the battery can be charged at low cost by charging the storage battery within a range not exceeding the contract supply power.

  In this case, when there is a supply request exceeding the contracted power supply amount as in the invention described in claim 3, the control means does not respond to all the supply requests at the same time and can supply the cheapest power. You may make it control charge of a storage battery so that supply time may be shifted within a belt | band | zone and electric power may be supplied to a storage battery. By controlling the charging of the storage battery in this way, it is not possible to respond to all supply requests at the same time, but it is possible to prevent exceeding the contract supply power.

  In this case, as in the invention according to claim 4, the control means determines whether or not the charge amount within the time zone in which the cheapest power can be supplied can secure the required charge amount. When it is determined that it cannot be performed, charging of the storage battery may be controlled so that power is supplied to the storage battery within a time zone in which cheap power can be supplied next.

In addition, as in the invention described in claim 5 , further comprising an input means for inputting a change in the contract conditions of the system power supply including the power rate plan, and the control means inputs a change in the contract conditions by the input means In addition, the charging of the storage battery may be controlled so that power is supplied to the storage battery connected to the connection means in the time zone in which the cheapest power can be supplied among the newly entered contract conditions. As a result, the storage battery can always be charged with inexpensive power even if there is a change in the power charge or a plan change.

Further, as in the sixth aspect of the invention, the apparatus further includes setting means provided indoors for setting the charging start time and end time of the storage battery, and the control means uses the setting means to set the charging start time and the charging time. If the end time is set, the charging of the storage battery may be further controlled to end the charging of the storage battery at the set charging end time via the charging of the storage battery at the set charging start time. In addition, as in the invention described in claim 7, when the acquisition unit acquires the information on the necessary charge amount of the storage battery, and the control unit acquires the information on the required charge amount by the acquisition unit, The charging start time and the charging end time in a time zone in which inexpensive power can be supplied are determined, charging of the storage battery is started at the determined charging start time, and charging of the storage battery is ended at the determined charging end time Yo In may be further control the charging of the battery.

Further, as in the invention described in claim 8 , further comprising a display means for displaying information relating to the charging of the storage battery, the control means supplies the most inexpensive power required for the storage battery. The storage battery is charged when it is determined whether the supply request exceeds the amount of power that can be supplied within the available time zone, and the supply request exceeds the amount of power that can be supplied within the time zone that can supply the cheapest power. You may make it further control a display means so that it may display that it is insufficient as information. In this case, as in the ninth aspect of the invention, it is provided indoors and further includes setting means for setting the charging start time and end time of the storage battery, and the control means includes the storage battery in the display means. Information indicating that charging is insufficient is displayed as information, and when at least one of the charging start time and the charging end time is set by the setting means, the power of the storage battery is supplied to the storage battery according to the time set in the setting means. Charging may be further controlled.

Further, as in the invention described in claim 10 , the connection means can be connected to the system power supply and each storage battery of a plurality of automobiles, and the control means supplies power to the plurality of storage batteries simultaneously or sequentially. You may make it control charge of a storage battery so that it may supply. In this case, as in the invention described in claim 11 , when the control means charges a plurality of storage batteries in order, power is supplied in the order of the vehicle or the charging connector in which the priority order is predetermined. The power reception of the storage battery may be controlled. Further, in this case, as in the invention described in claim 12 , the apparatus further includes a charge amount setting unit for setting a charge amount per unit, and the control unit charges each of the plurality of storage batteries in order. In this case, the charging of the storage battery may be controlled so that electric power is supplied to each storage battery according to the charge amount set by the charge amount setting means.

Further, as in the invention described in claim 13 , the connecting means is provided between the system power supply and the storage battery (for example, the primary side of the distribution board) and detects a leakage on the vehicle side on which the storage battery is mounted. You may make it provide a detection means. By providing the leakage detection means in this manner, even if a leakage occurs on the automobile side, the power is cut off only on the automobile side, and the building does not fail.

  As described above, according to the present invention, the storage battery mounted in the automobile is charged at low cost by controlling the charging of the storage battery so as to supply power to the storage battery in the time zone in which the cheapest power can be supplied. There is an effect that can be.

It is a figure which shows schematic structure of the building concerning embodiment of this invention. It is a block diagram which shows the structure of the electric power supply control apparatus and charging apparatus which were provided in the building concerning embodiment of this invention, and a motor vehicle. It is a flowchart which shows an example of the flow of the charging time setting process of the storage battery for vehicles performed in the control part of the electric power supply control apparatus with which the building concerning embodiment of this invention was equipped. (A) A charge plan divided into three time zones is shown, and (B) is a diagram showing an example in which charging time is 2 hours and charging time is 2 hours and charging start time is 23:00 and end time is 4 hours. (A) shows an example in which the charging time is set in the cheapest time and the next cheapest time zone, and (B) shows an example in which the charging power exceeds the contract supply power (6 kW). (A) shows an example in which the charging power is adjusted and the charging time is set within the cheapest time zone, and (B) shows the adjustment of the charging power in the cheapest time zone and the next cheapest time zone. An example in which the charging time is set is shown. It is a flowchart which shows an example of the flow of the charging process of the storage battery for vehicles performed in the control part of the electric power supply apparatus with which the building concerning embodiment of this invention was equipped. It is a figure which shows schematic structure of the building in case there are multiple automobiles to be charged. (A) shows an example in which two vehicle storage batteries 28 can be charged simultaneously, and (B) shows an example in which the charging time is set by shifting the charging time of the lower priority order. (A) shows an example in which the charging time of the lower priority is shifted and the charging time is set using the next cheapest time zone, and (B) is the cheapest time zone by adjusting the charging time. It is a figure which shows the example which set the charging time simultaneously in two units.

  Hereinafter, an example of an embodiment of the present invention will be described in detail with reference to the drawings. FIG. 1 is a diagram showing a schematic configuration of a building according to an embodiment of the present invention.

  A building 10 according to an embodiment of the present invention includes a power supply control device 12 that controls supply of power used in a building 10 such as a house. In addition, although the detached house is shown as an example in FIG. 1 as the building 10, it is not restricted to this, For example, you may make it apply an apartment house and another building.

  The power supply control device 12 includes a control unit 14, a power supply unit 16, and the like. A system power supply 18 is connected to the power supply 16 via a meter 20, and a plurality of branch breakers 22 are connected to the power supply 16. The charging device 30 for charging the main battery breaker 24 and the vehicle storage battery 28 mounted on the vehicle 26 such as a hybrid vehicle or an electric vehicle is connected, and the power supply unit 16 is controlled by the control unit 14. Thus, the power supply to the house and the power supply to the charging device 30 are controlled. Note that the connection between the charging device 30 and the vehicle storage battery 28 is described as being connected by a cable 32 having a connector 33 for electrical connection (so-called plug-in), but is not limited thereto. .

  By the way, equipment that cannot limit the use of electric power is not recognized as night electricity utilization equipment, and it is necessary to connect to a branch from the main breaker 24 as well as a general load of a house (for example, lighting, outlet, etc.) The charging device 30 according to the present embodiment charges the vehicle storage battery 28 with the cable 32 provided with the connector 33, and therefore may be registered as a night power utilization device. Therefore, the charging device 30 is connected between the meter 20 of the system power supply 18 and the main breaker 24 (primary side of the distribution board) and includes a leakage detector 34. As a result, if a vehicle-side leakage occurs while the vehicle storage battery 28 is being charged, the leakage detector 34 detects the leakage and turns off the switch circuit 36 to cut off the leakage. At this time, since the charging device 30 is connected between the meter 20 of the system power supply 18 and the main breaker 24 (primary side of the distribution board), the power supply to the house side is not interrupted, and the automobile 26 It is possible to prevent power outages due to electrical leakage on the side.

  Then, the structure of the electric power supply control apparatus 12 and the charging device 30 which were provided in the building 10 concerning embodiment of this invention, and the motor vehicle 26 is demonstrated in detail. FIG. 2 is a block diagram showing configurations of the power supply control device 12 and the charging device 30 and the automobile 26 provided in the building 10 according to the embodiment of the present invention.

  As described above, the system power supply 18, the main breaker 24, and the charging device 30 are connected to the power supply unit 16 of the power supply control device 12. The power supply unit 16 is also connected to a residential storage battery 38 that stores power to be supplied to the house, an electric water heater 40 that stores heat by nighttime power, and the like, and the power supply is controlled by the control unit 14. Is done.

  The power supply unit 16 has a function of converting alternating current power into direct current power or converting direct current power into alternating current power. The power supply unit 16 converts the power supplied from the system power supply 18 into direct current power to convert the storage battery 38 for housing, Charging by supplying to the vehicle storage battery 28 or converting the electric power stored in the residential storage battery 38 or the vehicle storage battery 28 into AC power to an electric device (electric device connected to each branch breaker 22). Supplying electric power such as supplying electric power or supplying electric power supplied from the system power supply 18 to an electric device or the like is performed.

  Further, the controller 14 is connected to a controller 42, and various settings for charging the vehicle storage battery 28, setting of electric charges for each time zone, and the like are possible. An operation unit for performing settings and a display unit for displaying screens such as various setting screens are included. For example, the controller 42 is provided indoors.

  The charging device 30 includes an information communication unit 44, a power connection unit 46, and a leakage detector 34.

  The information communication unit 44 is connected to the control unit 14 and the automobile 26, and can exchange information for charging the vehicle storage battery 28. For example, when charging the vehicle storage battery 28, identification information or the like of the automobile connected to the charging device 30 is acquired from the automobile 26 side and output to the control unit 14, and only the automobile 26 registered in advance is charged. Processing such as permitting is performed, or information on the charge amount of the vehicle storage battery 28 is acquired from the automobile 26 side and output to the control unit 14 to supply power to the charging device 30 according to the charge amount.

  The power supply connection unit 46 is connected to the power supply unit 16 and can be connected to the automobile 26 via the leakage detector 34 and the cable 32, and the power supplied from the power supply unit 16 is supplied to the automobile 26. By supplying the battery, the vehicle storage battery 28 is charged. It is assumed that the power supply connection unit 46 includes the switch circuit 36 described above.

  In addition, a leakage detector 34 is provided between the power connection 46 and the automobile 26. When leakage is detected during charging of the vehicle storage battery 28, power is supplied from the power connection 46 to the automobile 26. It is designed to shut off.

  On the other hand, the automobile 26 includes a charge / discharge control unit 48, and the charge / discharge of the vehicle storage battery 28 is controlled by the charge / discharge control unit 48.

  The charge / discharge control unit 48 is connected to the vehicle-side information communication unit 50, the vehicle-side power supply connection unit 52, and the vehicle storage battery 28. The charging / discharging control unit 48 stores information such as identification information of the automobile 26, and the information is output to the control unit 14 via the information communication unit 44 of the charging device 30. Thereby, it is possible to charge the automobile 26 registered in advance. The charge / discharge control unit 48 controls charging / discharging of the vehicle storage battery 28 and also monitors the amount of charge of the vehicle storage battery 28 and the like. 50 to the control unit 14.

  The vehicle-side power supply connection unit 52 is connected to the power supply connection unit 46 of the charging device 30 via the leakage detector 34 and the cable 32, and the power supplied from the power supply unit 16 is supplied to the charge / discharge control unit 48. As a result, the vehicle storage battery 28 is charged.

  The information communication unit 44 and the vehicle-side information communication unit 50 of the charging device 30 may be connected to the above-described cable 32 by another wiring, or an information wiring may be provided in the above-described cable 32. It may be provided and connected, or may be connected by the above-described cable 32 so that the flow of power and information is performed by one cable, or may be connected by wireless communication.

  Next, the charging of the vehicle storage battery 28 performed by the power supply control device 12 and the charging device 30 of the building 10 according to the embodiment of the present invention configured as described above will be described.

  The power supply control device 12 supplies the least expensive power when supplying the charging device 30 with power for charging the vehicle storage battery 28. Specifically, as a charge plan for power supplied from the system power supply 18, a power charge plan for each time period divided into three hours of morning, evening, daytime, and nighttime is applied, and the power charge plan is set in the controller 42. Thus, the vehicle storage battery 28 is charged by supplying power to the charging device 30 in a time zone in which the cheapest power can be supplied. In addition, when the contract conditions including the power rate plan are changed by the controller 42, in order to always supply inexpensive power, the power is supplied in a time zone in which the cheapest power can be supplied according to the new contract conditions. Supply to the charging device 30. In the present embodiment, a power rate plan divided into three hours is applied, but a rate plan divided into three hours or more may be applied. In the present embodiment, the contract conditions such as the power rate plan are set by operating the controller 42. However, the contract conditions and the like are automatically updated through communication connection with the power company. You may do it.

  In the building 10 according to the embodiment of the present invention, after returning to the automobile 26, the charging device 30 and the vehicle storage battery 28 are simply connected by the cable 32, so that the cheapest time zone (in the present embodiment, at night). Charge the battery. At this time, control is performed so that the vehicle storage battery 28 is charged within a range that does not exceed the contract supply power amount, or when the contract supply power amount is exceeded, the charging is terminated within the range of the contract supply power amount. It is possible to control such that charging is performed after shifting to an inexpensive time zone. Any one of the selections can be selected by presetting by operating the controller 42.

  It is also possible to operate the controller 42 to set at least one of the charge start time and the end time in advance and control the charge start and the charge end according to the setting.

  Next, a process for charging the vehicle storage battery 28 in the building 10 according to the embodiment of the present invention will be described.

  First, processing for setting the charging time of the vehicle storage battery 28 will be described. FIG. 3 is a flowchart showing an example of the flow of the charging time setting process for the vehicle storage battery 28 performed by the control unit 14 of the power supply control device 12 provided in the building 10 according to the embodiment of the present invention.

  In step 100, the control unit 14 determines whether the vehicle is a charge-permitted vehicle. This determination acquires the identification information memorize | stored in the charging / discharging control part 48 of the motor vehicle 26 via the information communication part 44 and the vehicle side information communication part 50, and whether the acquired identification information is registered previously. If the determination is negative, the process proceeds to step 102. If the determination is affirmative, the process proceeds to step 104.

  In step 102, the controller 42 is controlled by the control unit 14, whereby a message indicating that the automobile 26 connected to the charging device 30 is not a registered vehicle is displayed, and the process ends. That is, charging other than vehicles registered in advance is prohibited. Note that a non-registered vehicle may be temporarily rechargeable by performing a predetermined operation on the controller 42.

  In step 104, the control unit 14 determines whether or not the charging time is automatically set. The determination is made by determining whether or not the automatic charging time setting for automatically setting the charging time of the vehicle storage battery 28 by operating the controller 42 is set in advance. If the determination is negative, step 106 is performed. If the result is affirmative, the process proceeds to step 108.

  In step 106, the preset start time and end time are set in the charging device 30 as the charging time, and the series of processing ends. That is, by operating the controller 42, the charge start time and end time are manually set in advance, and the set time is set in the charging device 30 as the charge time.

  On the other hand, in step 108, information for setting the charge start and end times is acquired by the control unit 14, and the process proceeds to step 110. For example, the control unit 14 acquires the charging capacity and the necessary charge amount of the vehicle storage battery 28 detected by the charge / discharge control unit 48, reads out the contract conditions of power set in advance by the controller 42, etc. The total amount of power supplied from the system power supply 18 to the belt (for example, standby power, the amount of power of the electric water heater 40, the amount of power such as the charging power of the storage battery 38), and the like are acquired from the power supply unit 16.

  In step 110, it is determined by the control unit 14 whether or not it is set to end charging within the cheapest time zone. In this determination, it is determined whether or not the charge setting for setting the charge start time and the end time is set in advance by operating the controller 42 within the time zone in which the cheapest electric power can be supplied. If yes, then go to Step 112; if no, go to Step 120.

  In step 112, the required charging time for charging the required charging amount is calculated by the control unit 14, and the charging start and end times in the cheapest time zone are set, and the process proceeds to step 114. In this embodiment, as shown in FIG. 4 (A), it is divided into three time zones: morning and evening (7-10 o'clock, 17-23 o'clock), daytime (10-10 o'clock), and nighttime (23-7 o'clock). By applying the price plan, the charge start and end times are set within the night time zone because the night time zone is the cheapest power. At this time, the charging time is set in a range not exceeding the contracted power supply. For example, in addition to vehicle storage battery charging, as shown in FIG. 4B, when standby power, electric water heater, and residential storage battery charging are supplied, a range that does not exceed contract supply power (for example, 6 kW) Set the charging time with. In the example of FIG. 4B, an example is shown in which the charging start time is 23:00 and the end time is 4 o'clock with charging power of 2 kW for 5 hours. Also, if it is not possible to charge up to the required charge amount only in the night time zone, or if it is not possible to charge up to the required charge amount within the range not exceeding the contracted power supply, the charge amount is insufficient, but it can be done only in the night time zone Charge to a certain point.

  Subsequently, at step 114, the control unit 14 determines whether or not the required power is insufficient. This determination is made because the required charge amount may not be charged in the charging time set in step 112 (within the time period in which the cheapest power can be supplied). If this determination is negative, the determination is left as it is. The process ends, and if the result is affirmative, the process proceeds to step 116.

  In step 116, the control unit 14 is controlled so that a message indicating that the amount of charge is insufficient is displayed on the controller 42, and the process proceeds to step 118.

  In step 118, it is determined whether or not the charging time has been set by the controller 42. That is, it is determined whether the controller 42 is operated and the charging start time and the end time are manually set, and waits until the determination is affirmed to end a series of processing. This step may be omitted, or the controller 42 may be made to input whether to manually set the charging time. Further, instead of determining whether both the charging start time and the charging end time are set manually, it may be determined whether the charging start time or the end time is set manually.

  On the other hand, in step 120, the required charging time for charging the required charging amount is calculated by the control unit 14, and charging starts and ends in the cheapest time zone (the time zone including the next cheapest time zone). The time is set and the routine proceeds to step 122. In this embodiment, as shown in FIG. 4 (A), it is divided into three time zones: morning and evening (7-10 o'clock, 17-23 o'clock), daytime (10-10 o'clock), and nighttime (23-7 o'clock). The charge plan is applied and the night time zone is the cheapest power, so the charging start and end times are set in the night time zone. At this time, the charging time is set in a range not exceeding the contracted power supply. For example, in addition to vehicle storage battery charging, as shown in FIG. 4B, when standby power, electric water heater, and residential storage battery charging are supplied, a range that does not exceed contract supply power (for example, 6 kW) Set the charging time with. In the example of FIG. 4B, an example is shown in which the charging start time is 23:00 and the end time is 4 o'clock with charging power of 2 kW for 5 hours. Further, when the charging time is insufficient in the night time zone (23-7 o'clock), as shown in FIG. 5A, in the next cheaper time zone (morning and evening time zone in this embodiment). Set the end time. Also, as shown in FIG. 5 (B), when the contract supply power (6 kw) is exceeded, as shown in FIGS. 6 (A) and 6 (B), charging is performed within the contract supply power range. The charging time may be set by adjusting the power. FIG. 6A shows an example in which the charging power is adjusted and the charging time is set within the cheapest time zone, and FIG. Shows an example of setting the charging time in an inexpensive time zone.

  Next, in step 122, it is determined by the control unit 14 whether the set charging time has exceeded the cheapest time zone. If the determination is affirmative, the process proceeds to step 124, and if negative, the control is continued. The process ends.

  In step 124, the control unit determines whether or not the number of times that the set charging time has exceeded the cheapest time zone is a predetermined number of times. As shown in FIG. 6B, the determination is made by adjusting the charging power and setting the charging time, and if the charging time is required until the next cheaper time zone, Since it may be cheaper to increase the contract power supply, it is determined whether or not the number of times the cheapest time zone has been exceeded has reached a predetermined number or more. If the determination is affirmative, the process proceeds to step 126. If the result is negative, the series of processing ends.

  In step 126, as described above, even if the basic charge increases, it may be cheaper to increase the contract supply power. Therefore, the control unit 14 controls the controller 42 to display the contract change advice on the controller 42. The process ends.

  Next, a charging process for charging in accordance with the charging time set by the above-described charging time setting process for the vehicle storage battery 28 will be described. FIG. 7 is a flowchart showing an example of the flow of the charging process of the vehicle storage battery 28 performed by the control unit 14 of the power supply device 12 provided in the building 10 according to the embodiment of the present invention.

  In step 200, the control unit 14 determines whether or not the charging start time has come. In this determination, the control unit 14 determines whether or not the charge start time set as the above-described charge time is reached. If the determination is negative, the process is terminated and other processes are performed, and the charge start time is determined. When it becomes, it transfers to step 202.

  In step 202, charging is started and the routine proceeds to step 204. That is, the control unit 14 controls the power supply unit 16 to supply power from the system power supply 18 to the charging device 30. As a result, in the charging device 30, electric power is supplied to the vehicle storage battery 28 through the power supply connection unit 46, the leakage detector 34, the vehicle-side power supply connection unit 52, and the charge / discharge control unit 48, and the vehicle storage battery 28 is charged. Be started.

  In step 204, it is determined whether or not the leakage detection is detected by the leakage detector 34. If the determination is affirmative, the process proceeds to step 206. If the determination is negative, the process proceeds to step 208.

  In step 206, the leakage detector 34 performs an earth leakage interruption, stops the power supply to the vehicle storage battery 28, displays that the leakage has been detected, and ends the series of processes. Here, when leakage is detected and leakage is cut off, the charging device 30 is connected to the primary side of the distribution board (between the meter 20 and the main breaker 24) and is supplied with power from the system power supply 18. Only the power supply from the charging device 30 to the vehicle storage battery 28 is stopped. Therefore, since the power to the building 10 is supplied, the building 10 will not be interrupted by electric leakage on the automobile 26 side.

  On the other hand, in step 208, the control unit 14 determines whether or not the charging end time or the full charge has been reached. In this determination, the control unit 14 determines whether or not the charging end time set in the above-described charging time setting process has been reached, or the charge / discharge control unit 48 monitors the charging state of the vehicle storage battery 28 to control the control unit 14. , The control unit 14 determines whether or not the vehicle storage battery 28 is fully charged. If the determination is negative, the control unit 14 returns to step 204 to repeat the above-described processing, and the determination is positive. When this is done, the process proceeds to step 210.

  In step 210, the charging is finished, that is, the power supply from the power supply unit 16 to the vehicle storage battery 28 is stopped by the control of the control unit 14, and the series of processes is finished.

  That is, in the building 10 of the present embodiment, when the vehicle storage battery 28 of the automobile 26 is connected to the charging device 30 via the cable 32, the charging start time and end are set so as to charge in the cheapest time zone. Since the vehicle storage battery 28 is charged with the time set, the vehicle storage battery 28 mounted on the automobile 26 can be charged at low cost. Further, when setting the charging time of the vehicle storage battery 28, it is possible to charge the vehicle storage battery 28 mounted on the automobile 26 at a low cost by setting the charging time within a range not exceeding the contract supply power. Become.

  By the way, in said embodiment, although the automobile 26 to be charged was described as an example, a plurality of automobiles 26 to be charged may be provided. As a configuration example in this case, for example, as shown in FIG. 8, the charging device 30 may be provided with a leakage detector 34 corresponding to each vehicle 26, or a plurality of vehicles with one leakage detector. 26 leakage detection may be performed.

  The setting of the charging time when there are a plurality of vehicles 26 to be charged is basically the charging time setting process as in the above embodiment, but when setting the charging time in step 112 and step 120, The charging time may be set so as to charge a plurality of devices at the same time, the charging time may be set so as to charge randomly in order, or the charging is performed according to a predetermined priority order. Time may be set. For example, the priority order can be set in advance by the controller 42 for each connector 33 or cable 32 connected to the automobile 26, and the charging time may be set in accordance with the set priority order. In addition, when the charge amount per unit can be set by the controller 42 and charging is performed according to the priority order, each storage battery may be charged according to the set charge amount. In this way, by making it possible to set the charge amount per unit, it is not possible to fully charge, but it is possible to reliably charge the plurality of vehicle storage batteries 28 within a range that does not exceed the contract power supply.

  Moreover, as an example of the process of step 112 when there are a plurality of charging targets, for example, as shown in FIG. 9A, the vehicle storage battery A and the vehicle are within a range not exceeding the contract supply power (6 kw in FIG. 9). The storage battery B is charged within the cheapest time zone (23-7 o'clock). In the case of this example, an example is shown in which the charging power is adjusted so as not to exceed the contracted power supply and two vehicle storage batteries 28 can be charged simultaneously in 5 hours from 23 to 4 o'clock. At this time, the priority order is set in advance, and as shown by the dotted line in FIG. 9B, if the contracted power supply is exceeded when charging simultaneously, the charging time of the lower priority order is shifted. Then, the charging time may be set at 4-7, and the controller 42 may be informed that the charging amount of the lower priority order in which the charging time is shifted in step 116 is insufficient. Note that when the priority order is not set, the priority order may be set at random.

  In addition, as an example of the processing of step 120 when there are a plurality of charging targets, if the contracted power supply is not exceeded even if charging is performed simultaneously, the setting may be made as shown in FIG. As shown by the dotted line in (A), in the case where the contracted supply power is exceeded when charging at the same time, the charging time of one (vehicle storage battery B in FIG. 10 (A)) is shifted to the next cheapest What is necessary is just to set charging time so that it may charge also using time. At this time, if the priority order is set in advance, the higher priority order may be set to be charged first. Further, when the charging power is adjusted, if all the vehicle storage batteries 28 can be charged within the cheapest time zone, the charging time is adjusted and charged at the same time as shown in FIG. You may make it set to.

  In the above-described embodiment, the controller 42 is described as performing the setting for charging the vehicle storage battery 28 and the setting of the electric power charge for each time zone. It may be possible to give instructions for operating the air conditioner. When the controller 42 instructs the air conditioner of the automobile 26 to operate, the air conditioner may be operated by supplying power from the system power supply 18 from the building 10.

DESCRIPTION OF SYMBOLS 10 Building 12 Power supply control apparatus 14 Control part 16 Power supply part 18 System power supply 26 Car 28 Vehicle storage battery 30 Charging device 32 Cable 33 Connector 34 Leakage detector 42 Controller 44 Information communication part 46 Power supply connection part 48 Charge / discharge control part 50 Vehicle side information communication part 52 Vehicle side power supply connection part

Claims (13)

A connection means for electrically connecting a system power source, which is a power rate plan divided into at least three hours or more, and a storage battery mounted in an automobile;
Control means for controlling charging of the storage battery so as to supply power to the storage battery connected to the connection means in a time zone in which the cheapest power can be supplied in the power rate plan;
Display means for displaying information on charging of the storage battery,
The control means determines whether or not a charge amount within a time zone in which the cheapest power can be supplied can secure a required charge amount, and a request is made for the charge amount in the time zone in which the cheapest power can be supplied. A building that controls the display means so that when it is determined that the amount of charge cannot be secured more than a predetermined number of times, the information is displayed to prompt the user to change the power supply contract .   The said control means controls charge of the said storage battery so that electric power may be supplied to the said storage battery in the range which does not exceed the predetermined contract supply electric energy in the time slot | zone which can supply the cheapest electric power. building.   When there is a supply request exceeding the contracted supply power amount, the control means does not respond to all the supply requests at the same time, and shifts the supply time within a time zone in which the cheapest power can be supplied, and the storage battery The building of Claim 2 which controls charge of the said storage battery so that electric power may be supplied to.   The control means determines whether or not the charge amount within the time period in which the cheapest power can be supplied can secure the required charge amount. The building according to claim 3, wherein charging of the storage battery is controlled so that electric power is supplied to the storage battery within a time zone. An input means for inputting a change in contract conditions of the system power supply including the power rate plan;
The storage battery connected to the connection means in a time zone in which the cheapest electric power can be supplied among the newly entered contract conditions when the control means inputs the change of the contract conditions by the input means. The building according to any one of claims 1 to 4, wherein charging of the storage battery is controlled so as to supply electric power to the vehicle. Provided indoors, further comprising setting means for setting the charging start time and charging end time of the storage battery,
When the control means sets the charge start time and the charge end time by the setting means, the control means starts charging the storage battery at the set charge start time, and at the set charge end time. The building according to any one of claims 1 to 4 , further controlling charging of the storage battery so as to end the charging of the storage battery . Further comprising an acquisition means for acquiring information on a required charge amount of the storage battery;
When the control unit acquires information on the required charge amount by the acquisition unit, the charging unit determines a charging start time and a charging end time in a time zone in which the cheapest power can be supplied, and the determined charging The charge of the said storage battery is further controlled so that the charge of the said storage battery may be started at the start time, and the charge of the said storage battery may be complete | finished at the determined said charge end time. Building. Further comprising display means for displaying information relating to the charging of the storage battery,
The control means determines whether or not the required charge amount of the storage battery is a supply request that exceeds the amount of power that can be supplied within the time zone in which the cheapest power can be supplied, and the time when the cheapest power can be supplied The said display means is further controlled so that it may display as said information that the said storage battery will run short of the charge securing amount when it is determined that the supply request exceeds the amount of power that can be supplied in the band. 5. The building according to any one of 4 above. Provided further indoors, further comprising a setting means for setting the charging start time and charging end time of the storage battery,
When the control means displays on the display means that the storage battery is insufficiently charged as the information, and the setting means sets at least one of the charging start time and the charging end time, the setting means The building according to claim 8 , further controlling charging of the storage battery so as to supply electric power to the storage battery in accordance with a time set in the above . The connection means can be connected to the system power supply and each storage battery of a plurality of automobiles,
The building according to any one of claims 1 to 9, wherein the control unit controls charging of the storage batteries so as to supply power to the plurality of storage batteries simultaneously or sequentially . When charging a plurality of storage batteries in order, the control means supplies power in the order of a charging connector provided corresponding to the automobile or the plurality of storage batteries, the priority order of which is determined in advance. The building according to claim 10 , wherein charging of the building is controlled . A charge amount setting means for setting a charge amount per unit;
When the control unit charges each of the plurality of storage batteries in order, the charging of the storage battery is controlled so as to supply power to each of the storage batteries according to the charge amount set by the charge amount setting unit. Item 15. The building according to item 11. The building according to any one of claims 1 to 12, wherein the connection means is provided between the system power supply and the storage battery, and includes a leakage detection means for detecting a leakage on the automobile side on which the storage battery is mounted .

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