IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0057886
(2009-08-04)
|
등록번호 |
US-8652669
(2014-02-18)
|
우선권정보 |
JP-2008-206414 (2008-08-08); JP-2008-206415 (2008-08-08); JP-2008-206416 (2008-08-08); JP-2008-206417 (2008-08-08) |
국제출원번호 |
PCT/JP2009/063781
(2009-08-04)
|
§371/§102 date |
20110207
(20110207)
|
국제공개번호 |
WO2010/016474
(2010-02-11)
|
발명자
/ 주소 |
- Nakayama, Yasuhide
- Hojo, Eiji
- Shiota, Masashi
- Ohsaki, Shin
- Egami, Shinichi
|
출원인 / 주소 |
- GS Yuasa International Ltd.
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
3 인용 특허 :
4 |
초록
▼
A lead-acid battery comprising a container having at least one cell chamber and a lid body for covering a top opening of the container. The lid body has on a top surface a recessed portion having therein an annular portion protruding upward and having, in an area of a bottom wall inside the protrudi
A lead-acid battery comprising a container having at least one cell chamber and a lid body for covering a top opening of the container. The lid body has on a top surface a recessed portion having therein an annular portion protruding upward and having, in an area of a bottom wall inside the protruding portion, an exhaust hole for exhausting gas from the cell chamber, wherein a guide passage for guiding gas from the exhaust hole to the outside is formed by joining the protruding portion with a joining portion provided on the lid body cover. An annular groove formed between the protruding portion and the vertical wall is covered with an outer periphery of the lid body cover 5 and the guide passage is isolated from the groove.
대표청구항
▼
1. A lead-acid battery, comprising: a container having plural cell chambers;a lid body for covering a top opening of the container, the lid body having on its top surface a recessed portion that is recessed downward, the recessed portion having: a bottom wall constituting a bottom portion; a vertica
1. A lead-acid battery, comprising: a container having plural cell chambers;a lid body for covering a top opening of the container, the lid body having on its top surface a recessed portion that is recessed downward, the recessed portion having: a bottom wall constituting a bottom portion; a vertical wall rising upward from an outer periphery of the bottom wall; a first annular protruding portion, which protrudes upward on the bottom wall and is positioned inside the vertical wall, and a second annular protruding portion, which protrudes upward on the bottom wall and is positioned inside the vertical wall and outside the first annular protruding portion, the bottom wall having plural first exhaust holes in an area inside the first annular protruding portion, which communicate with the respective plural cell chambers, and a second exhaust hole in an area inside the second annular protruding portion; anda lid body cover for closing the recessed portion;the lid body cover having a first joining portion provided corresponding to the first annular protruding portion and joined to the first annular protruding portion to form a space, and a second joining portion provided corresponding to the second annular protruding portion and joined to the second annular protruding portion to form a guide passage,wherein the second exhaust hole communicates with the guide passage and with a particular cell chamber with which one of the first exhaust holes communicates; anda groove is provided in the recessed portion, between the first annular protruding portion and the vertical wall and outside the second annular protruding portion, the groove being configured to surround the first annular protruding portion and the second annular protruding portion, the groove being covered with a portion including an outer periphery of the lid body cover and is isolated from the space and the guide passage. 2. The lead-acid battery according to claim 1, wherein the guide passage comprises: a first guide passage including an upward guide portion for upwardly guiding gas exhausted from the exhaust hole, a horizontal guide portion for horizontally guiding gas from the upward guide portion and a downward guide portion for downwardly guiding gas from the horizontal guide portion; and a second guide passage for guiding gas to a discharge opening from the downward guide portion. 3. The lead-acid battery according to claim 1 or 2, wherein one of the lid body and the lid body cover has to-be-locked portions and the other has locking portions that come into locking engagement with the to-be-locked portions, the to-be-locked portions comprising a pair of holes, one of the pair of holes being sized to block horizontal movement of the locking portion that comes into locking engagement with the hole, the other of the pair of holes being shaped into a long hole that is elongated in the direction in which the pair of holes oppose each other. 4. The lead-acid battery according to claim 1, wherein electrode plates are housed in the cell chamber, and the lid body has a bushing to which an electrode pole extending from the electrode plates is inserted and welded; a terminal; and a conductive part for connecting the terminal with the bushing, the conductive part being integrated with the bushing and the terminal to form a terminal body, and wherein at least the lower portion of the bushing and the conductive part of the terminal body are embedded in the lid body by insert molding. 5. The lead-acid battery according to claim 4, wherein the lid body has positive and negative electrode terminals disposed adjacent one side of the lid body and at respective ends of said one side in a longitudinal direction, the positive and negative electrode terminals each having a lower portion embedded in the lid body and an upper portion projecting from the lid body, and wherein the lid body has a projection formed at a periphery of a location at which the upper portion of each of the terminals projects, at a location proximate to the location at which the upper portion of each of the terminals projects, or at each of these locations. 6. The lead-acid battery according to claim 5, wherein the projection comprises a first projecting portion disposed in a periphery of the location at which the upper portion of each of the terminals projects; and second and third projecting portions disposed in proximity to the first projecting portion, at respective sides of the first projecting portion in the longitudinal direction, and projecting upward of the first projecting portion, wherein each of the terminal has, in a side end adjacent the second projecting portion or in a side end adjacent the third projecting portion, an opening through which a nut can be inserted, and a bottom surface of the opening is positioned lower than the top surface of the second or third projecting portion. 7. The lead-acid battery according to claim 2, wherein the discharge opening has a cutout that allows gas to be discharged in the radial direction of the discharge opening. 8. The lead-acid battery according to claim 1, wherein the guide passage includes a first guide passage formed inside the second annular protruding portion that surrounds the second exhaust hole; and a second guide passage of a tunnel shape, which extends from a portion of the first guide passage through below the bottom wall serving as the groove and through the vertical wall to the discharge opening for discharging gas to the outside.
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