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1. 发明专利

JPH09320562A SEALED CYLINDRICAL NONAQUEOUS SECONDARY BATTERY 失效
公开(公告)号：JPH09320562A
公开(公告)日：1997-12-12
申请号：JP27041296
申请日：1996-10-14
申请人： SHIN KOBE ELECTRIC MACHINERY , WAKO DENSHI KK
发明人： OGURA TAKAO , TSUJIIDE MUTSUMI , SAITO SHINJI , IMOTO AKIRA , KAMEISHI TOSHIZO
IPC分类号： H01M2/12 , H01M2/34
摘要： PROBLEM TO BE SOLVED: To provide a sealed cylindrical nonaqueous secondary battery excellent in leakage resistance characteristic by completely shutting off current inside the battery at the initial stage of the buildup of the battery internal pressure if the battery has failed. SOLUTION: A group of electrodes 5 is enclosed, together with an electrolyte, inside a metallic, cylindrical battery outer case 1 serving also as a negative terminal, the battery outer case 1 is connected to the negative side of the group of electrodes 5, an insulative gasket 3 is placed on the inner periphery of an opening in the battery outer case 1, and the battery outer case 1 is closed by a disc-shaped plug 17 serving also as a positive terminal supported against the gasket 3; the plug 17 includes a metallic plug main body 4 electrically connected to the group of electrodes 5, a metallic terminal cap 2 insulated from the plug main body 4 and locked in place, a return switch 8 having a contact part 8a that establishes electrical conduction from the plug main body 4 to the terminal cap 2, and a non-return explosion-proof valve 10 that is displaced outward as the pressure within the battery outer case 1 builds up.

2. 发明专利

JP2001237151A ELECTROLYTIC CAPACITOR WITH PROTECTIVE DEVICE 失效
公开(公告)号：JP2001237151A
公开(公告)日：2001-08-31
申请号：JP2000046362
申请日：2000-02-23
申请人： NIPPON CHEMICON , WAKO DENSHI KK
发明人： UEDA YUKIO , SHIDA YOICHI , NAKAAKI KENTARO , UMEDA KAZUHIRO , KAMEISHI TOSHIZO , IMOTO AKIRA
IPC分类号： H01G9/12 , H01M2/34
摘要： PROBLEM TO BE SOLVED: To miniaturize an electrolytic capacitor with a protective device by simplifying an interrupting mechanism. SOLUTION: In the electrolytic capacitor 1 in which a capacitor element 10 is housed in a bottomed-cylinder case 2 and the opening end of the cylinder case 2 is sealed by an opening sealing member 5 while the capacitor element 10 is connected in a conductive manner at a lead terminal 6 penetrated to the opening sealing member 5 and exposed to the outside, the lead terminal 6 is hollowed 12 while a conduction interrupting section 7 being deformed by pressure difference and bringing the lead terminal 6 to a nonconductive state when pressure difference between the inside of the electrolytic capacitor 1 and the inside of the hollow 12 reaches fixed or more of pressure is mounted at the inside end section of the electrolytic capacitor 1 of the lead terminal 6.

3. 发明专利

JPH087730A THERMOSTAT 失效
公开(公告)号：JPH087730A
公开(公告)日：1996-01-12
申请号：JP15923994
申请日：1994-06-16
申请人： WAKO DENSHI KK
发明人： HAYASHI TOSHIHARU , IMOTO AKIRA
IPC分类号： H01H37/54 , H01H37/70
摘要： PURPOSE:To provide a thermostat which admits installation of a thermo- sensitive element in an optimum place and which allows the resetting operation in any position. CONSTITUTION:A thermostat is furnished with a thermo-switch part 1 having a thermo-sensitive element 12 and opening/closing contacts 14, 15 and a forced return part 2 having a plunger 19 and coil 18, wherein the switch part 1 and forced return part 2 are installed in line. Between the element 12 and opening/ closing contacts, a guide pin 11 is installed, and the termo-switch part 1 is fitted with a resetting shaft 4 which can be contacted with the contacts. The plunger 19 and resetting shaft 4 are moved by feeding current to the coil 18, and the contacts 14, 15 are returned to the on condition.

4. 发明专利

JP2002075804A ELECTROLYTIC CAPACITOR AND ITS CONTROL METHOD 失效
公开(公告)号：JP2002075804A
公开(公告)日：2002-03-15
申请号：JP2000251805
申请日：2000-08-23
申请人： NIPPON CHEMICON , WAKO DENSHI KK
发明人： KAGAWA JIYUTOKU , KAMEISHI TOSHIZO , IMOTO AKIRA
IPC分类号： H01G9/12
摘要： PROBLEM TO BE SOLVED: To inform of an increase in the internal pressure within an electrolytic capacitor to the outside. SOLUTION: When the internal pressure of an electrolytic capacitor increases, a dome-like inner pressure sensing valve 24 is reversed so as to project in the opposite direction from such a state that it projects to the bottom side, and a pressing member 23 is moved thereby. The movement of the pressing member 23 pushes up the outer circumferential part of a spring member 25 in contact with two lead terminals 22 and 22, and while a projection 211 is used as a fulcrum, the spring member 25 is released from the lead terminals 22 and 22. Therefore, there becomes nonconductive between the lead terminals 22 and 22, and such a state is detected from the outside so that the increase in the internal pressure of the electrolytic capacitor can be recognized.

5. 发明专利

JP2001237152A ELECTROLYTIC CAPACITOR 失效
公开(公告)号：JP2001237152A
公开(公告)日：2001-08-31
申请号：JP2000046361
申请日：2000-02-23
申请人： NIPPON CHEMICON , WAKO DENSHI KK
发明人： UEDA YUKIO , SHIDA YOICHI , NAKAAKI KENTARO , KAMEISHI TOSHIZO , IMOTO AKIRA
IPC分类号： G01L9/00 , G01L11/00 , H01G9/12 , H01H35/34
摘要： PROBLEM TO BE SOLVED: To electrically detect a pressure rise in an electrolytic capacitor from the outside of the electrolytic capacitor. SOLUTION: In the electrolytic capacitor 1 in which a capacitor element 10 is housed in a bottomed cylinder case 2 and the opening end of the cylinder case 2 is sealed by an opening sealing member 5 while lead terminals 4 led out from the capacitor element 10 are penetrated to the opening sealing member 5 and exposed to the outside of the armored case 2, an internal-pressure detecting means 7 capable of electrically detecting to reach a fixed value or more of pressure in the cylinder case 2 under the state of the operation of the capacitor element 10 is mounted on the opening sealing member 5.

6. 发明专利

JP2001068387A ELECTROLYTIC CAPACITOR AND DEVICE THEREOF 失效
公开(公告)号：JP2001068387A
公开(公告)日：2001-03-16
申请号：JP23967599
申请日：1999-08-26
申请人： NIPPON CHEMICON , WAKO DENSHI KK
发明人： UEDA YUKIO , SHIDA YOICHI , NAKAAKI KENTARO , KAMEISHI TOSHIZO , IMOTO AKIRA
IPC分类号： H01G9/00 , H01G9/12
摘要： PROBLEM TO BE SOLVED: To enable external communication of an increased internal pressure inside an electrolytic capacitor. SOLUTION: When the internal pressure of the electrolytic capacitor increases, a domed internal pressure sensitive valve 24 is inverted like depicting an arc from its downward state to the upward state to push an arm part 221 of a switch member, whereby a contact 222 of the arm 221 is released from a metallic plate 25 electrically connected to an accommodation case 20. As a result, the case 20 and a cap member 21 become nonconductive, but, when the nonconductive state is externally detected, an increased internal pressure of the electrolytic capacitor can be known.

7. 发明专利

JP2000258258A TEMPERATURE SENSOR AND ITS MANUFACTURE 失效
公开(公告)号：JP2000258258A
公开(公告)日：2000-09-22
申请号：JP6135599
申请日：1999-03-09
申请人： WAKO DENSHI KK
发明人： HAYASHI TOSHIHARU , IMOTO AKIRA
IPC分类号： G01K7/18
摘要： PROBLEM TO BE SOLVED: To provide an inexpensive and highly accurate temperature sensor by removing the non-photosensitive part of a photoresist applied to a conductive substrate, precipitating an electrodeposited metal through electroforming, and peeling it to form a resistor. SOLUTION: The surface of a conductive substrate 1 is coated with a photoresist to form a photosensitive film 2, and the photosensitive film 2 is covered with a mask 3, and an entire body is exposed. The mask 3 has the same plane shape as a temperature sensor to be manufactured. Then, a part 2a not exposed because of the mask 3 is dissolve to remove. The photosensed part is hardened as an insoluble film 2b and remains sticking on the substrate 1. Further, the substrate 1 on which only insoluble film 2b remains is subjected to an electroforming process. Thus, a nickel layer 4 as an electrodeposited metal is precipitated on the surface of the substrate 1. Then, the photosensitive film 2 is removed, and the nickel layer 4 is peeled off from the substrate 1, than a resistor for temperature sensor which has the same shape as the mask 3, is finished.

8. 发明专利

JP2004063773A Relief valve for capacitor and capacitor equipped therewith 审中-公开
公开(公告)号：JP2004063773A
公开(公告)日：2004-02-26
申请号：JP2002219973
申请日：2002-07-29
申请人： Wako Denshi Kk , ワコー電子株式会社
发明人： HAYASHI TOSHIHARU , KAMEISHI TOSHIZO , IMOTO AKIRA
IPC分类号： H01G9/10 , H01G9/12
CPC分类号： Y02E60/13
摘要： PROBLEM TO BE SOLVED: To provide a relief valve for an electrical double layered capacitor which is small in size and has a high performance.
SOLUTION: In an opening of a vessel 7 with an electrolyte inside, a gasket 2 is installed. In the opening of the vessel 7, there is also a disc spring-like disc 3 with a bottom which selectively connects or disconnects the inside and outside of the vessel 7, depending whether it closely contact the gasket 2 or not. Normally, the disc 3 is in close contact with the gasket 2 and seals the vessel 7. When the internal pressure of the vessel 7 becomes the release operation pressure or above, the disc 3 moves inversely in a direction away from the gasket 2, connecting the inside and outside of the vessel 7. Under the sealing recovery pressure or below, the disc 3 returns to the original condition to be adhered to the gasket 2 and seal the vessel.
COPYRIGHT: (C)2004,JPO

9. 发明专利

JPH11273651A Safety device for secondary battery 失效
标题翻译：二次电池安全装置
公开(公告)号：JPH11273651A
公开(公告)日：1999-10-08
申请号：JP7753698
申请日：1998-03-25
申请人： Wako Denshi Kk , ワコー電子株式会社
发明人： HAYASHI TOSHIHARU , HAYASHI HISASHI , KAMEISHI TOSHIZO , IMOTO AKIRA
IPC分类号： H01M2/12 , H01M2/22
CPC分类号： Y02E60/12
摘要： PROBLEM TO BE SOLVED: To provide a safety device which can avoid the danger of firing and explosion caused by the misuse (abnormal use) of a battery. SOLUTION: In a safety device 10, lower aluminum foil 4 provided with an air vent 4b on a concentric circle at a center fusing position C is fused to the bottom surface of a metallic case 1, and upper aluminum foil 3 laminated with the lower aluminum foil 4 with an insulating ring 5 sandwiched at their contours is fused at the fusing position C to form a sealed element 20, with a ring-shaped PTC(positive temperature coefficient) element 6 placed on the upper surface of the upper aluminum foil 3 while being sandwiched between the upper surface of the foil 3 and the peripheral edge of a terminal cap 2. If the resistance value of the PTC element 6 increases as the result of the flow of an excess current, a current conducted decreases to prevent damage to a battery. When gas is produced, the gas directly presses the upper aluminum foil 3 through the air vent 4b in the lower aluminum foil 4, exerting a shearing force on the vent hole 4b and causing rupturing of the lower aluminum foil 4. The aluminum foils 3, 4 are separated from each other to shut off a current in a current- conducting path to prevent the temperature of the battery from rising. As the internal pressure further rises, the upper aluminum foil 3 is pressed against the inner peripheral edge of the PTC element 6 and ruptured to allow the gas to leak out.
摘要翻译：要解决的问题：提供一种可以避免电池误用（异常使用）引起的爆炸和爆炸危险的安全装置。解决方案：在安全装置10中，在中心熔接位置C的同心圆上设置有排气孔4b的下铝箔4熔融在金属壳体1的底面上，与铝箔在其熔合位置C处熔合具有夹在其轮廓上的绝缘环5的箔4以形成密封元件20，其中环形PTC（正温度系数）元件6放置在上铝箔3的上表面上，同时被夹在箔3的上表面和端帽2的周缘之间。如果PTC元件6的电阻值随着过电流的流动而增加，则传导的电流减小以防止损坏电池。当产生气体时，气体通过下铝箔4中的通气口4b直接压入上铝箔3，在通气孔4b上施加剪切力并引起下铝箔4的破裂。铝箔3， 4彼此分离以截止导通路径中的电流，以防止电池的温度升高。随着内部压力进一步升高，上部铝箔3被压靠在PTC元件6的内周边缘上并破裂，从而使气体泄漏。

10. 发明专利

JPH09288923A LOW-RESISTANCE SWITCH 失效
公开(公告)号：JPH09288923A
公开(公告)日：1997-11-04
申请号：JP10149596
申请日：1996-04-23
申请人： WAKO DENSHI KK
发明人： IMOTO AKIRA
IPC分类号： H01H1/06 , H01H1/24 , H01H35/34
摘要： PROBLEM TO BE SOLVED: To provide a low-resistance switch through which large currents can be passed. SOLUTION: In this low-resistance switch 11, a movable contact 22 in a cap 21 is energized downward by a coil spring 23 via a spring pusher 24 to fit the movable contact 22 into the gap between first and second terminals 16, 17. The current path of the switch 11 is from the cap 21 to the second terminal 17 to the movable contact 22 to the first terminal 16 to a base 12. Pressure works on a disc spring 14 through a hole 12b in the base 12 of the switch 11, and if the pressure exceeds an allowable pressure, the disc spring 14 is inverted. When the disc spring 14 is inverted, the movable contact 22 is thrust upward by the disc spring 14 and separated from the first and second terminals 16, 17. Therefore, the current path of the switch 11 is interrupted.

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