公开(公告)号：US20170373287A1

公开(公告)日：2017-12-28

申请号：US15539834

申请日：2016-01-25

Applicant: DENSO CORPORATION

Inventor： Koji YAMASHITA ,  Hiroyoshi YAMAMOTO ,  Kouichi UMEDA

IPC: H01M2/10 ,  H01M2/12 ,  H01M10/6567

CPC classification number: H01M2/1005 ,  H01M2/1077 ,  H01M2/12 ,  H01M2/1252 ,  H01M10/6567 ,  H01M2220/20

Abstract: A battery pack includes multiple sub-modules each of which includes multiple battery cells electrically connected to each other, and an exhaust duct that is provided between and integrated with at least the two battery modules facing each other. The exhaust duct includes therein an exhaust passage that communicates with an outer surface of a safety valve provided in each battery cell in each of the facing battery modules.

公开(公告)号：US20200227797A1

公开(公告)日：2020-07-16

申请号：US15757905

申请日：2016-08-02

Applicant: DENSO CORPORATION

Inventor： Shinya KATO ,  Takeshi SADA ,  Yoshimitsu INOUE ,  Hiroyoshi YAMAMOTO ,  Shota IGUCHI

IPC: H01M10/625 ,  H01M10/613 ,  H01M10/615 ,  H01M10/6563 ,  H01M2/10 ,  B60L58/26 ,  B60L58/27

Abstract: A battery pack includes a housing accommodating a plurality of batteries and a blower. A control unit manages the temperature of the batteries according to the battery temperature provided by a temperature detector. When the battery temperature becomes equal to or higher than a predetermined cooling required temperature, the control unit executes a cooling mode of operating the blower to cool the batteries. The control unit executes a temperature equalizing mode of operating the blower to equalize the temperature inside the housing by causing the fluid flowing through the circulation path even when the battery temperature is lower than the cooling required temperature and the cooling is unnecessary.

公开(公告)号：US20230417840A1

公开(公告)日：2023-12-28

申请号：US18363511

申请日：2023-08-01

Applicant: DENSO CORPORATION

Inventor： Hiroyoshi YAMAMOTO ,  Shuhei YOSHIDA ,  Yuta SHIMONISHI ,  Sho NAGASHIMA ,  Kazuya TAKIZAWA

IPC: G01R31/396 ,  G01R31/392 ,  G01R31/3842 ,  G01R31/3828 ,  G01R31/36

CPC classification number: G01R31/396 ,  G01R31/392 ,  G01R31/3648 ,  G01R31/3828 ,  G01R31/3842

Abstract: A battery management system includes a usage history acquisition unit, a deterioration estimation unit, a battery load acquisition unit, a deterioration change degree identification unit, and a battery management unit. The usage history acquisition unit acquires usage history information. The deterioration estimation unit estimates a current deterioration state and a deterioration factor of the secondary battery based on the usage history information. The battery load acquisition unit acquires battery load information indicating a future battery load. The deterioration change degree identification unit identifies a deterioration change degree by using the current deterioration state, the deterioration factor and the battery load information of the secondary battery. The battery management unit uses the deterioration change degree to associate secondary batteries with future use modes so that an evaluation value indicating a degree of deterioration of the secondary battery in use devices becomes a minimum value.

公开(公告)号：US20180102576A1

公开(公告)日：2018-04-12

申请号：US15561295

申请日：2016-06-16

Applicant: DENSO CORPORATION

Inventor： Hiroyoshi YAMAMOTO ,  Yoshimitsu INOUE ,  Koji YAMASHITA ,  Shota IGUCHI

IPC: H01M10/6556 ,  H01M2/10 ,  H01M10/625 ,  H01M10/613 ,  H01M10/6563

CPC classification number: H01M10/6556 ,  H01M2/1077 ,  H01M10/613 ,  H01M10/625 ,  H01M10/647 ,  H01M10/6555 ,  H01M10/6563 ,  H01M2220/20

Abstract: A battery pack includes: a battery assembly including a plurality of batteries; a fluid drive member driving a fluid which cools the battery assembly; a housing that houses the battery assembly and the fluid drive member; and a beam provided integrally with a bottom wall of the housing to support the battery assembly from a lower side. A circulation passage provided in the housing includes: a first fluid passage between the battery assembly and a side wall of the housing; a battery passage between the batteries; and a second fluid passage downstream of the battery passage and extending toward the fluid drive member. The second fluid passage is surrounded by at least the beams, the bottom wall, and a lower end of the battery assembly.

公开(公告)号：US20150255838A1

公开(公告)日：2015-09-10

申请号：US14635208

申请日：2015-03-02

Applicant: DENSO CORPORATION

Inventor： Yoshimitsu INOUE ,  Hiroyoshi YAMAMOTO

IPC: H01M10/6565 ,  G01R31/36 ,  H01M2/10

CPC classification number: H01M10/6565 ,  H01M2/1077 ,  H01M10/486 ,  H01M10/613 ,  H01M10/615 ,  H01M10/625 ,  H01M10/63 ,  H01M10/6566 ,  H01M10/6567 ,  H01M2010/4271

Abstract: A battery pack has a casing, electric fans, battery temperature thermistors and a battery management unit. The casing accommodates the battery cell stacks. The electric fans generate an air circulation in the inside chamber of the casing. The thermistors detect a temperature of the battery cells. At least one of the thermistors is arranged in each of the battery cell stack to detect a temperature of a battery cell arranged at a specific location in a battery cell stacking direction. At least one of the thermistors arranged in one battery cell stack in a pair of the battery cell stacks selected from all of the battery cell stacks detects a temperature of the battery cell arranged at a different location in the battery cell stacking direction from a location of any battery cell arranged in the other battery cell stack in the pair of the battery cell stacks.

Abstract translation: 电池组具有外壳，电风扇，电池温度热敏电阻和电池管理单元。 壳体容纳电池单元堆叠。 电风扇在壳体的内部室中产生空气循环。 热敏电阻检测电池单元的温度。 至少一个热敏电阻布置在每个电池单元堆叠中以检测布置在电池单元堆叠方向上的特定位置处的电池单元的温度。 从所有电池单元堆叠中选择的一对电池单元堆叠中布置在一个电池单元堆叠中的热敏电阻中的至少一个，从布置在电池单元堆叠方向上的位置的位置检测布置在电池单元堆叠方向上的不同位置的电池单元的温度 布置在一对电池单元堆叠中的另一个电池单元堆叠中的任何电池单元。

公开(公告)号：US20230375637A1

公开(公告)日：2023-11-23

申请号：US18363558

申请日：2023-08-01

Applicant: DENSO CORPORATION

Inventor： Shuhei YOSHIDA ,  Kazuya TAKIZAWA ,  Yuta SHIMONISHI ,  Hiroyoshi YAMAMOTO ,  Sho NAGASHIMA

IPC: G01R31/392 ,  H01M10/42 ,  G01R31/36 ,  G16Y40/20 ,  G16Y20/20

CPC classification number: G01R31/392 ,  H01M10/4285 ,  G01R31/3648 ,  G16Y40/20 ,  G16Y20/20 ,  H01M2220/20

Abstract: A battery diagnostic system includes an interpolation processing unit, a degradation estimation unit, a degradation prediction unit, and an output unit. When a part of the battery load history is missing, the interpolation processing unit interpolates the missing part using the rest of the constituent data. The degradation estimation unit estimates, based on the battery load history, a present degradation state of the secondary battery and a cause of degradation that has brought about the degradation state. The degradation prediction unit predicts, using a predicted battery load, the present degradation state and the cause of degradation of the secondary battery, a predicted degradation state of the secondary battery that will occur in the future upon having been used in the use mode. The output unit outputs the predicted degradation state of the secondary battery.

公开(公告)号：US20180241106A1

公开(公告)日：2018-08-23

申请号：US15750868

申请日：2016-08-01

Applicant: DENSO CORPORATION

Inventor： Hiroyoshi YAMAMOTO ,  Yoshimitsu INOUE ,  Kouji YAMASHITA

IPC: H01M10/6566 ,  H01M10/613 ,  H01M10/617 ,  H01M10/6551 ,  H01M10/6557 ,  H01M10/6565 ,  H01M2/10

CPC classification number: H01M10/6566 ,  H01M2/10 ,  H01M2/1077 ,  H01M10/613 ,  H01M10/617 ,  H01M10/625 ,  H01M10/6551 ,  H01M10/6557 ,  H01M10/6565 ,  H01M2220/20

Abstract: A battery pack includes a plurality of battery cells, case (housing), circulation path, and blower. The circulation path includes battery paths, inflow side space, outflow side space, and a path along the housing. The battery paths are formed by gaps between adjacent battery cells. The inflow side space distributes fluid to the inlets of the battery paths. The outflow side space gathers fluid from the outlets of the battery paths. The path along the housing is a path that is different from the inflow side space and outflow side space and extends along one or more inner surfaces of the case. The circulation path is formed such that at least one of a flow velocity of the fluid in the inflow side space and a flow velocity of the fluid in the outflow side space is slower than a flow velocity of the fluid in the path along the housing.

公开(公告)号：US20180034021A1

公开(公告)日：2018-02-01

申请号：US15655052

申请日：2017-07-20

Applicant: DENSO CORPORATION ,  YAZAKI CORPORATION

Inventor： Hiroyoshi YAMAMOTO ,  Shota IGUCHI ,  Koji YAMASHITA ,  Hisato INOUE ,  Yoshiaki ICHIKAWA ,  Katsunori SATO ,  Hidehiro TAKASUGI

IPC: H01M2/10 ,  H01M8/04029 ,  H01M8/04007 ,  H01M10/625 ,  H01M2/20

CPC classification number: H01M2/1077 ,  H01M2/1072 ,  H01M2/1094 ,  H01M2/204 ,  H01M2/206 ,  H01M8/04029 ,  H01M8/04037 ,  H01M8/04074 ,  H01M10/625 ,  H01M10/627 ,  H01M2220/20

Abstract: A battery pack has bus bars, a battery stack which is an assembly of plural battery cells, a bus bar casing which supports a bus bar casing, and a cover member. Electrode terminals of battery cells adjacently arranged in the battery stack are connected together through the bus bars. An upstream side passage and a downstream side passage are formed between the bus bars and the cover member. Upstream side wall surfaces forming an inlet part of the upstream side passage or downstream side wall surfaces forming an outlet part of the downstream side passage is arranged at a location closer to the battery cell side than a location of a surface of the bus bar side.

公开(公告)号：US20180034014A1

公开(公告)日：2018-02-01

申请号：US15660165

申请日：2017-07-26

Applicant: YAZAKI CORPORATION ,  DENSO CORPORATION

Inventor： Yoshiaki ICHIKAWA ,  Katsunori SATO ,  Hidehiro TAKASUGI ,  Hirokuni KOIKE ,  Hisato INOUE ,  Hiroyoshi YAMAMOTO

IPC: H01M2/10 ,  H01M2/30 ,  H01M2/20 ,  B60L11/18 ,  H01M10/04

CPC classification number: H01M2/1016 ,  B60L11/1877 ,  B60L11/1879 ,  H01M2/1077 ,  H01M2/12 ,  H01M2/202 ,  H01M2/206 ,  H01M2/30 ,  H01M10/0413

Abstract: Each battery module of a battery pack includes a stack of serially connected battery cells, a gas discharge duct extending in a cell arrangement direction to guide gas discharged from a relief valve of each battery cell to an outside of the battery module, the gas discharge duct having a first connection opening at one end and a second connection opening at the other end, a first connection terminal piece having an inner end portion electrically connected to an electrode of one of the battery cells at one end of the serial connection and an outer end portion disposed inside the first connection opening, and a second connection terminal piece having an inner end portion electrically connected to an electrode of another one of the battery cells at another end of the serial connection and an outer end portion disposed inside the second connection opening.

公开(公告)号：US20150037632A1

公开(公告)日：2015-02-05

申请号：US14447142

申请日：2014-07-30

Applicant: DENSO CORPORATION

Inventor： Hiroyoshi YAMAMOTO ,  Yoshimitsu INOUE

IPC: H01M10/613 ,  H01M10/6556 ,  H01M10/6563 ,  H01M10/6567 ,  H01M10/42 ,  H01M10/625

CPC classification number: H01M10/4207 ,  H01M2/1077 ,  H01M10/613 ,  H01M10/625 ,  H01M10/6563 ,  H01M10/6565 ,  H01M2220/20

Abstract: A battery cooling system has a case that forms an internal space surrounded by a plurality of walls to accommodate a plurality of battery cells, a blower accommodated in the case that circulates a fluid for cooling the plurality of battery cells inside of the case, and a passage-along-wall forming member. The passage-along-wall forming member forms passage-along-walls along with and between side walls among the plurality of walls that forms the case. The passage-along-wall forming member has an inflow part where the fluid flowing out of the blower before contacting the battery cells passes when flowing into the passage-along-wall, and an outflow part where the fluid flowed in from the inflow part into the passage-along-wall passes when flowing out from the passage-along-wall.

Abstract translation: 电池冷却系统具有形成由多个壁包围以容纳多个电池单元的内部空间的壳体，容纳在壳体内的鼓风机，所述鼓风机使用于将壳体内的多个电池单元冷却的流体，以及 沿壁形成构件。 所述通道壁形成构件沿着形成所述壳体的所述多个壁中的侧壁和侧壁之间形成通道。 通道壁形成构件具有流入部分，其中在流入沿着通道的壁流动时，在与电池单元接触之前从鼓风机流出的流体流过，以及流体从流入部分流入的流出部分 沿着通道沿着墙壁流出时的通道沿墙通行。