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11. 发明专利

JP2002233052A STORAGE DEVICE 失效
公开(公告)号：JP2002233052A
公开(公告)日：2002-08-16
申请号：JP2001019874
申请日：2001-01-29
申请人： HITACHI LTD
发明人： MIYAMOTO YOSHIMI , HAGIO TOMONORI , MIYAJIMA NORIYUKI
IPC分类号： H02J3/00 , H02J3/32
摘要： PROBLEM TO BE SOLVED: To provide a storage device calculating and displaying a difference between the prices of an electric charge due to a time zone and the difference of the electric charge produced by the difference between the time zones of charge and discharge due to storage. SOLUTION: The storage device is provided with an input power calculation part for calculating input power from the measured values of input voltage and current, an output power calculation part 9 for calculating output power from the measured values of output voltage and current, and an electric charge calculation part for calculating input electric energy and output electric energy from the input power and the output power, and time information measured by a counting means 16, calculating the corresponding electric charges during charge and discharge by the input electric energy, the output electric energy, the information of contracted electric charge system recorded by a recording means and the time information and calculating the difference between the electric charges, and a display means 11 for displaying the difference.

12. 发明专利

JP2002110259A STORAGE BATTERY DEVICE 失效
公开(公告)号：JP2002110259A
公开(公告)日：2002-04-12
申请号：JP2000296108
申请日：2000-09-28
申请人： HITACHI LTD
发明人： MIYAJIMA NORIYUKI , MIYAMOTO YOSHIMI , OKAWA TOYOKAZU , SAKAIRI MICHIKO
IPC分类号： H02J7/00 , H01M10/42 , H01M10/48
摘要： PROBLEM TO BE SOLVED: To perform sure monitor control of cells in a storage battery device and inexpensively reduce the wiring space for a cell monitor devices and the number of assembling and inspecting man-hours without requiring address identifying circuit parts for the cell monitor devices. SOLUTION: Master-side control means 23 is provided in a control device 1 for controlling the storage battery device and slave-side control means 14 is provided in each of the plurality of cell monitoring devices 2 for monitoring cell voltage. A self-address set by the processing operation of the master-side control means 23 and the slave-side control means 14 is stored in a storage part and the self-address is added to a control signal based on the cell voltage detected by a voltage detection circuit 13 and then transmitted to the master-side control means 23.

13. 发明专利

JPH11346437A DEMAND CONTROL SYSTEM FOR HOUSEHOLD 失效
公开(公告)号：JPH11346437A
公开(公告)日：1999-12-14
申请号：JP15252598
申请日：1998-06-02
申请人： HITACHI LTD
发明人： MIYAMOTO YOSHIMI , MIYAJIMA NORIYUKI
IPC分类号： H02B1/40 , H02J3/00 , H02J3/28
摘要： PROBLEM TO BE SOLVED: To reduce the electricity rate by controlling a charge/discharge switching means and a current variable device in a storage equipment to specified limiting values, which are predetermined, based on the total current value, according to the total current value. SOLUTION: The state of a storage means 17 is checked as to whether or not it can be discharged. When the storage means 17 is in a dischargeable state, it is checked whether or not the storage means 17 is now in a discharged state. If it is not, a function N for setting a current value during discharging is set to a specified value, and then discharging is started and the total current value in the house is measured. The measured value is compared with a predetermined limiting value. When the measured value is smaller than the limit value, it is checked whether the predetermined value for the total current is the limiting value or lower. If it is, the function N is decremented by only 1. Then, it is checked whether the function N is a preset value or below. If it is, discharging is stopped, and a current variable means 13 and a charge/discharge switching means 14 are controlled to specified values or below.

14. 发明专利

JP2000228831A CORRECTION METHOD FOR IRREGULARITY IN SET BATTERY 失效
公开(公告)号：JP2000228831A
公开(公告)日：2000-08-15
申请号：JP2962899
申请日：1999-02-08
申请人： HITACHI LTD
发明人： MIYAMOTO YOSHIMI , MIYAJIMA NORIYUKI
IPC分类号： H02J7/02 , H01M10/44 , H02J1/00 , H02J7/10
摘要： PROBLEM TO BE SOLVED: To make a circuit simple and less expensive by a method wherein voltages of unit batteries are compared relatively in every battery module so as to correct its irregularity and an irregularity between battery modules is corrected. SOLUTION: When a battery module 7a is not being charged, whether the module is being discharged or not is checked. When the module is being discharged and when the voltage of a unit battery 1a, that of a unit battery 1b and that of a unit battery 1c are less than a charging completion value, a module control part 6 checks whether a preset discharge completion value or lower is detected in the voltages of the respective unit batteries 1a, 1b, 1c. When the discharge completion value or lower is not detected, whether an instruction to turn on all discharging means is issued from an overall control part 8 or not is checked. When the instruction is not issued, the voltages of the respective unit batteries 1a, 1b, 1c are compared. Whether a prescribed value 1 or higher which is prescribed in advance is detected in the relative voltage difference between the unit batteries or not is checked. When any of the unit batteries whose relative voltage difference is at the prescribed value 1 or higher is detected, all the discharge means are turned on. When the discharge relative difference is less than the prescribed value 1, all the discharge means are turned off.

15. 发明专利

JPH11346443A CONTROLLER OF BATTERY SET FOR STORAGE EQUIPMENT 失效
公开(公告)号：JPH11346443A
公开(公告)日：1999-12-14
申请号：JP15252698
申请日：1998-06-02
申请人： HITACHI LTD
发明人： MIYAMOTO YOSHIMI , MIYAJIMA NORIYUKI
IPC分类号： H02J7/00 , H01M10/42 , H02H7/18 , H02J7/02
摘要： PROBLEM TO BE SOLVED: To prevent the spread of an abnormal state to normal batteries by cutting off the entire battery set, when an operation detecting means detects the operation of one or more protective devices for cell modules. SOLUTION: A battery set 4 is constituted of a plurality of serially connected cell modules 3a-3c. In each cell module (3a-3c), a cell (1a-1c) which is a secondary battery has a built-in or external installed protective device (2a-2c). When the protective device detects abnormality in the cell, it electrically closes the cell and then makes a short circuit between the cell and an external terminal connected to the cell. Then, when an operation detecting means detects the operation of the electrical cutting off the cell (1a-1c) of the protective device (2a-2c) by one or more protective devices (2a-2c) for the cell modules (3a-3c), it shuts down the battery set 4 as a whole.

16. 发明专利

JPH11113184A CONTROL METHOD OF LITHIUM ION SECONDARY BATTERY 失效
公开(公告)号：JPH11113184A
公开(公告)日：1999-04-23
申请号：JP27084397
申请日：1997-10-03
申请人： HITACHI LTD
发明人： TAKANUMA AKIHIRO , MIYAMOTO YOSHIMI , MIYAJIMA NORIYUKI
IPC分类号： H02J7/02 , H01M10/44 , H02J7/10
摘要： PROBLEM TO BE SOLVED: To suppress decline of a charging capacity or a discharging capacity which is caused by the protection of overcharging or overdischarging when a number of batteries are used by a method wherein the overcharging protection is practiced by two voltages with which a charging current is cut off when the voltage is detected from a plurality of batteries and when the voltage is detected from one battery only respectively. SOLUTION: Voltages of respective lithium ion batteries 1a-1n are detected by a microcomputer 3. A charge switch 1 which cuts off a charging current and a discharging switch 5 which cuts off a discharging switch 5 are operated by a control circuit 2 in accordance with the command from the microcomputer 3. A control method wherein, when the voltage of a plurality of batteries, preferably, reach a value 4.2 V, it is judged that the charging is completed and, when the voltage of only one battery, preferably, reaches a value 4.4 V, it is judged that the charging is completed is employed for the charging completion judgement. By employing two completion judgement values, the total charging of all the batteries can be increased without putting the batteries into a dangerous region.

17. 发明专利

JP2001177998A PROTECTIVE DEVICE AND RECHARGING DEVICE OF MODULE BATTERY 失效
公开(公告)号：JP2001177998A
公开(公告)日：2001-06-29
申请号：JP36358399
申请日：1999-12-22
申请人： HITACHI LTD
发明人： MIYAMOTO YOSHIMI , MIYAJIMA NORIYUKI , SAKAIRI MICHIKO
IPC分类号： H02J7/00 , H02H7/18
摘要： PROBLEM TO BE SOLVED: To improve reliability by protecting a module battery by a second protection means for detecting the terminal voltage of the module battery, even if a first protection means for detecting the voltage between the terminals of the secondary battery fails. SOLUTION: In the protection and recharging devices of a module battery 2, where a plurality of secondary batteries 1 are connected in series, the voltage between the terminals of the secondary battery 1 is detected and a signal for stopping the charging/discharging of the module battery 2 is outputted, when the voltage is outside a specific range by a first protection means 5, and the voltage between the terminals of the module battery 2 is detected and a signal for stopping the charging/discharging of the module battery 2 is outputted when the voltage is outside the specific range.

18. 发明专利

JP2000209778A HOUSEHOLD ELECTRICITY STORING DEVICE 失效
公开(公告)号：JP2000209778A
公开(公告)日：2000-07-28
申请号：JP609899
申请日：1999-01-13
申请人： HITACHI LTD
发明人： MIYAMOTO YOSHIMI , MIYAJIMA NORIYUKI
IPC分类号： H02J9/06 , H02J3/32 , H02J3/38 , H02M7/48
摘要： PROBLEM TO BE SOLVED: To provide a household electricity storing device which supplies its AC output to loads in the house by superposing the output upon commercial power supply in a time zone other than the midnight power supplying time zone by controlling the output current of the storing device to a value smaller than the total current consumption in the house measured by means of a current consumption measuring means. SOLUTION: When the electric current supplied from commercial power supply 17 is larger than a preset allowable value, an output opening/closing means 14 is closed by means of a signal from an overall control section 10. Then the output current of a household electricity storing device 1 is controlled to a value smaller than the total load current of the house and electric power is supplied from the storing device 1 to all loads used in the house by connecting the device 1 to the system of the commercial power supply 17. Therefore, the output of the device 1 will not flow reversely outside of the house and the stored inexpensive midnight power can be utilized effectively in the house during daytime. In addition, the output rating of the device 1 can be reduced, because the device 1 supplies part of the electric current consumed in the house.

19. 发明专利

JP2000023381A METHOD AND CONTROLLER FOR CONTROLLING CHARGING OF COMBINED BATTERY 失效
公开(公告)号：JP2000023381A
公开(公告)日：2000-01-21
申请号：JP18857898
申请日：1998-07-03
申请人： HITACHI LTD
发明人： MIYAMOTO YOSHIMI , MIYAJIMA NORIYUKI
IPC分类号： H02J7/00 , H01M10/44 , H02J7/02 , H02J7/10
摘要： PROBLEM TO BE SOLVED: To efficiently adjust the terminal voltage variation among single batteries constituting a combined battery, and in addition, to suppress the heat generation from the batteries by detecting the terminal voltage of each single battery and charging one of the single batteries having a low terminal voltage from a standby secondary battery. SOLUTION: An overall control section 8 performs charging processing and variation processing following a basic flow. The section 8 first discriminates whether or not each single battery 1a-1d is to be charged from the voltages of the batteries 1a-1d, the state of an input - output section 15, etc., and when the section 8 discriminates that one of the batteries 1a-1d is to be charged, performs the charging processing. Secondly, the section 8 discriminates whether or not each battery 1a-1d is to be discharged, and when the section 8 discriminates that one of the batteries 1a-1d is to be discharged, it performs discharging processing. Thirdly, the section 8 discriminates whether or not the voltage differences among the batteries 1a-1d are equal to or higher than a preset limit value and, when the voltage difference between specific two batteries is equal to or higher than the limit value, additionally charges the single battery having the lower terminal voltage from a standby secondary battery 11. Since the terminal variation among the single batteries 1a-1d can be adjusted efficiently and the heat generation from the batteries 1a-1d can be suppressed, a charging controlling method and a controller suitable for an electricity storing device using a large-sized battery from which a heavy current is made to flow can be obtained.

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