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11. 发明专利

JP2000278806A POWER SUPPLY SYSTEM FOR ELECTRIC VEHICLE 失效
公开(公告)号：JP2000278806A
公开(公告)日：2000-10-06
申请号：JP7598799
申请日：1999-03-19
申请人： NISSAN DIESEL MOTOR CO , OKAMURA KENKYUSHO KK , POWER SYSTEM KK , FUJI ELECTRIC CO LTD
发明人： WATANABE YASUTO , YAMADA ATSUSHI , OKAMURA MICHIO , YAMAGISHI MASAAKI , KINOSHITA SHIGENORI
IPC分类号： H02J7/00 , B60K6/20 , B60K6/28 , B60K6/46 , B60L11/18 , B60L50/10 , B60W10/26 , B60W20/00 , H02J7/14 , B60L11/02
摘要： PROBLEM TO BE SOLVED: To attain reduction in size and weight and high efficiency. SOLUTION: This system is provided with a main storage device supplying power to a traveling motor 6, three battery blocks 10, 11, 12 constituted of electric double-layer capacitor cells 100, 110, 120 in the main storage device, and a block connection switching circuit 13 switching the number of the battery blocks 10, 11, 12 connected in series according to a voltage change by the charging or discharging of the electric double-layer capacitor cells 100, 110, 120 so that the voltage Vc of the main storage device 4 may be a prescribed value V1 or higher.

12. 发明专利

JP2000217251A DEVICE FOR CHARGING CAPACITOR AND DEVICE FOR STORING ELECTRICITY IN CAPACITOR HAVING RELAXED CHARGING FUNCTION 失效
公开(公告)号：JP2000217251A
公开(公告)日：2000-08-04
申请号：JP997599
申请日：1999-01-19
申请人： OKAMURA KENKYUSHO KK , POWER SYSTEM KK , JEOL LTD
发明人： OKAMURA MICHIO , SHIMIZU MASAAKI , MOGAMI AKINORI
IPC分类号： H02J7/02 , H02J1/00 , H02J7/10
摘要： PROBLEM TO BE SOLVED: To initialize a capacitor for plural times of charging cycles by changing over from a constant current to charging to a relaxed charging with a constant voltage. SOLUTION: Devices are provided with a switching means 1, which adjusts an output by switching input power and charges capacitors C1, C2, a current detecting means 4 for an output end, a voltage detecting means 5, a control means 2 which controls the switching means 1, in such a way that a charging current or voltage can reach a target value based on a current target value 6 and a voltage target value 7, a voltage sample holding means 3 which holds a charging voltage detected by the voltage detecting means 5 based on a sampling signal. The control means 2 charges the capacitors in the constant current mode upon the start of charging. If the charging voltage is held by the voltage sample holding means 3 based on the sampling signal, the charging voltage held is treated as the voltage target value, and the charging mode is changed over so as to charge the capacitors in relaxed charging mode.

13. 发明专利

JP2000068165A ELECTRIC-DOUBLE-LAYER CAPACITOR AND ITS MANUFACTURE 失效
公开(公告)号：JP2000068165A
公开(公告)日：2000-03-03
申请号：JP23432098
申请日：1998-08-20
申请人： OKAMURA KENKYUSHO KK , JEOL LTD
发明人： OKAMURA MICHIO , MOGAMI AKINORI
IPC分类号： H01G11/00 , H01G11/14 , H01G11/22 , H01G11/32 , H01G11/34 , H01G11/44 , H01G11/58 , H01G11/78 , H01G11/82 , H01G11/84 , H01G9/058 , H01G9/155
摘要： PROBLEM TO BE SOLVED: To hold an expansive pressure between the inner wall of the cylindrical container and the cylinder of an electric-double-layer capacitor even when its electrodes expand, by storing in the cylindrical container its wound body obtained through the winding of its band-form polarizable electrodes via a separator, and by providing in its central portion a cylinder in contact with its wound body. SOLUTION: In a cylinder type container 2 of an electric-double-layer capacitor 1, a cylindrical wound body 3 is stored. Laminating via a separator 6 polarizable electrodes 4, 5, they are wound around a winding shaft by a winder to manufacture the wound body 3. Forming in the central portion of the wound body 3 a space 7 corresponding to the winding shaft, a cylinder 11 is inserted into the space 7. Also, in the state of restraining the dimension of the wound body 3 to withstand the expansions generated in the polarizable electrodes 4, 5 when applying a voltage across them, an expansive pressure not smaller than 2 Kg/cm2 is generated in the polarizable electrodes 4, 5. Further, as the electrolyte of the capacitor 1, a non-aqueous solvent electrolyte is used, and in the polarizable electrodes 4, 5, there is used a carbonic material existing within an interlayer distance d002 of 0.365-0.385 nm measured by an X-ray diffraction method.

14. 发明专利

JP2000050495A MONITORING AND CONTROL APPARATUS FOR CHARGING OF CAPACITOR 失效
公开(公告)号：JP2000050495A
公开(公告)日：2000-02-18
申请号：JP21074998
申请日：1998-07-27
申请人： OKAMURA KENKYUSHO KK , POWER SYSTEM KK , JEOL LTD
发明人： OKAMURA MICHIO , MOGAMI AKINORI
IPC分类号： H02J1/00 , H02J7/02 , H02J7/04
摘要： PROBLEM TO BE SOLVED: To reduce a heat loss due to initialization of a capacitor by a method wherein a reference voltage is set at a voltage at several fractions of a fully charged voltage and initialization of a charging operation is corrected. SOLUTION: Respective capacitors are discharged completely. The designated signal SHn of a maximum capacitor, e.g. Cn, is set at 'H', and flip-flop 12i and a flip-flop 13i are reset. Thereby, selection signals S11,... Sn1 of a changeover switch at a parallel monitor are set at 'L', and selection signals S12,... Sn2 are set at 'H'. As a result, a reference voltage at a low voltage used to correct initialization of a charging operation is connected to respective comparison terminals. When the charging operation is started, the charging voltage of the respective capacitors is raised so as to reach the reference voltage sequentially. The output of a comparator CMP1 is set at 'H', the selection signals S11,... Sn1 are set at 'H', and the selection signals S12,... Sn2 are inverted to 'L'. Consequently, a finish signal SB which corrects the initialization as the output of an OR gate 17 is set at 'H', all the flip-flops are reset, the output is returned to 'H', and the correction of the initialization of the charging operation is finished.

15. 发明专利

JPH11299112A SERIES-PARALLEL SWITCHING POWER SUPPLY DEVICE 失效
公开(公告)号：JPH11299112A
公开(公告)日：1999-10-29
申请号：JP9757598
申请日：1998-04-09
申请人： OKAMURA KENKYUSHO KK , TOKYO ELECTRIC POWER CO , POWER SYSTEM KK , JEOL LTD
发明人： OKAMURA MICHIO , OSHIMA MASAAKI , YAMAGISHI MASAAKI , MOGAMI AKINORI
IPC分类号： H02J7/00 , H02J1/00
摘要： PROBLEM TO BE SOLVED: To avoid a cross current which is produced by a potential difference between a pair of batteries, when the charging method of the pair of batteries are switched from the parallel connection charging to the series connection charging. SOLUTION: A power supply device has a pair of batteries C1 and C2 whose voltages are much changed in accordance with charge/discharge values and three switching means which are connected in series to the pair of batteries respectively. The connection of the pair of batteries are switched between the series connection and the parallel connection at a predetermined voltage. Unilateral control rectification devices Q1 and Q2 are connected in series at least to the pair of batteries C1 and C2 respectively as the switching means. The unilateral control rectification devices Q1 and Q2 are connected in the flowing directions of the charging currents of the batteries to limit excessive charging currents or to avoid a cross current which flows from the battery with a higher voltage to the battery with a lower voltage at the time of charging.

16. 发明专利

JPH08124806A ELECTRIC DOUBLE-LAYER CAPACITOR 失效
公开(公告)号：JPH08124806A
公开(公告)日：1996-05-17
申请号：JP26270394
申请日：1994-10-26
申请人： OKAMURA KENKYUSHO KK , JEOL LTD
发明人： OKAMURA MICHIO
IPC分类号： H01G11/00 , H01G11/22 , H01G11/54 , H01G11/84 , H01G9/058 , H01G9/038 , H01G9/155
摘要： PURPOSE: To obtain an electric double-layer capacitor having the energy density equal to a secondary battery by a method wherein, using the quantity of electrolyte of the concentration corresponding to the ion quantity same as the ion quantity of electrolyte of concentration with which internal resistance increases by the decrease in ion quantity, the quantity of filling of an electrode, corresponding to the difference of the above-mentioned two quantities, is increased. CONSTITUTION: The first quantity of the first concentration electrolyte, which gives the quantity of ion into the electrolyte with which constant internal resistance can be maintained within the range of the operating voltage, is used in the title electric double-layer capacitor. At this point, the second quantity of electrolyte of the first concentration, corresponding to the quantity of the ion quantity equal to the ion quantity of the electrolyte of the second concentration with which the internal resistance increases due to the decrease in ion quantity in the range of operating voltage, is used and the amount of electric charge of the electrode, in the quantity corresponding to the difference between the first quantity and the second quantity, is increased. To be more precise, a charging current is fed to the capacitor block 3, on which a number of capacitors are series-parallel arranged, from an AC power source 1 through a charger.

17. 发明专利

JPH08113185A BICYCLE CONTROL DEVICE WITH AUXILIARY POWER 失效
公开(公告)号：JPH08113185A
公开(公告)日：1996-05-07
申请号：JP25040694
申请日：1994-10-17
申请人： OKAMURA KENKYUSHO KK , POWER SYST KK , JEOL LTD
发明人： OKAMURA MICHIO , YAMAGISHI MASAAKI
IPC分类号： B62K11/00 , B62M6/45 , B62M23/02
摘要： PURPOSE: To safely, effectively and efficiently control the auxiliary power by generating a control signal while its output time is being extended in proportion to the duration time of pedal footing force detected by a sensor, and providing a control means which can apply an auxiliary power in response to its pedal footing force. CONSTITUTION: In a pedal detection section 4, pedal footing force is detected by a sensor employing for example, a strain gauge and the like, and in a computation processing section 3, a control signal, is generated by extending its output time in proportion to the duration time of pedal footing force detected by the pedal detection section 4. Besides, a PWM control (pulse width control) section 1 outputs an output computed and processed by the computation processing section 3 as a control signal, adjusts a time interval at which voltage applied to an electric motor 2 from a power supply is turned on/off, and thereby controls the output of the electric motor 2. Since pedal footing force and its duration time are detected every time as mentioned above, and an output time to auxiliary power is extended in proportion to its duration time, response in proportion to a speed can thereby be automatically made only by means of pedal footing.

18. 发明专利

JPH0799740A PEAK LOAD TYPE ELECTRIC APPARATUS 失效
公开(公告)号：JPH0799740A
公开(公告)日：1995-04-11
申请号：JP22520793
申请日：1993-08-18
申请人： OKAMURA KENKYUSHO KK , ELNA CO LTD , ASAHI GLASS CO LTD
发明人： OKAMURA MICHIO , MORIMOTO TAKESHI , HIRATSUKA KAZUYA
IPC分类号： H01G11/00 , H01G11/10 , H02J1/00 , H02J7/00 , H02J9/06 , H01G9/155
摘要： PURPOSE:To provide a peak load type electric apparatus such as an electric car in which a short time large power or a long time small power can be taken out as the arises. CONSTITUTION:A high energy density type electric double-layer capacitor PS-B and a high power density type electric double-layer capacitor PS-A are connected to each other with a current output type switching regulator SR therebetween and the capacitor PS-A is always charged from the capacitor PS-B. With this constitution, a short time large power or a long time small power can be taken out as the need arises.

19. 发明专利

JPH0799723A POWER CAPACITANCE DEVICE 失效
公开(公告)号：JPH0799723A
公开(公告)日：1995-04-11
申请号：JP26415393
申请日：1993-09-28
申请人： OKAMURA KENKYUSHO KK , ELNA CO LTD , ASAHI GLASS CO LTD
发明人： OKAMURA MICHIO , MORIMOTO TAKESHI , HIRATSUKA KAZUYA
IPC分类号： G01R27/26 , H01G11/00 , H01G11/10 , H02H7/16 , H02J1/00 , H02J7/02 , H01G9/155
摘要： PURPOSE:To detect a fault in a short time by a method wherein a constant voltage source and a light emitting diode are connected in series between the terminals of each capacitor cell and the fault in each capacitor cell is detected by the luminous of the light emitting diode. CONSTITUTION:A Zener diode D1, a light emitting diode D2 and a current limiting resistor R1 are connected in series between the terminals of a capacitor cell C. Although the capacitor cell C is expressed as one capacitor, it is actually composed of a required number of electric double-layer capacitors which are arbitrary connected in series and/or in parallel with each other. A power capacitance device is composed of a number of the capacitor cells C which are arbitrary connected in series. If the terminal voltage of one of the capacitance cells C is dropped below the Zener voltage, the light emitting diode of that cell is extinguished. Therefore, the operation states of the respective capacitor cells C including their remaining charges can be monitored visually.

20. 发明专利

JPH0757978A CHARGING METHOD FOR ELECTRIC DOUBLE LAYER CAPACITOR 失效
公开(公告)号：JPH0757978A
公开(公告)日：1995-03-03
申请号：JP22520693
申请日：1993-08-18
申请人： OKAMURA KENKYUSHO KK , ELNA CO LTD , ASAHI GLASS CO LTD
发明人： OKAMURA MICHIO , MORIMOTO TAKESHI , HIRATSUKA KAZUYA
IPC分类号： H01G11/00 , H01G11/10 , H02J7/00 , H02J7/10 , H01G9/155
摘要： PURPOSE:To allow charging up to a target voltage level in a short time without setting any relax charging time by overcharging an electric double layer capacitor up to a predetermined set voltage level exceeding the working voltage thereof for a predetermined time. CONSTITUTION:An electric double layer capacitor having working voltage of 2.25V, internal resistance of 200mOMEGA, and capacitance of 260F is discharged down to 0.05V and then it is charged by means of a constant current constant voltage charger. In this regard, output current of the charger is set at 1.0A and the limit voltage thereof is set at 2.5V which is higher by 0.25V than the working voltage of the electric double layer capacitor. Overcharge is preferably conducted by feeding a constant current continuously from a constant current power supply. Alternatively, switching can be made to another power supply at a moment when the working voltage is exceeded. In any case, overcharge is preferably sustained until an electric quantity, corresponding to that being injected during the relax charging interval of electric double layer capacitor, is obtained.

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