Matsushita Electric Industrial Co., Ltd.

Wako Pure Chemical Industries, Inc.

Shoji Konishi

Takeshi Ishimaru

Yoshinori Iwaizono

Shigeru Kajiwara

Katsuyuki Shirasawa

Masaru Kawabe

Katsumi Kozu

Ryoichi Kaiwa

Hiroshi Sasaki

Tetsuo Hirabayashi

Junji Fujiwara

Takashi Takemura

Masaru Kitamura

A rechargeable battery is integrated with a battery protection circuit that protects the rechargeable battery from overcharging, over discharging, and so forth. A circuit board () on which are formed a battery protection circuit, a positive input and output terminal (), and a temperature detection terminal () is disposed on a rechargeable battery () via a spacer (), and the positive and negative electrodes of the rechargeable battery () are connected to the circuit board (). This assembly is enveloped by a cover cap () and a cover plate (), such that the positive input and output terminal () and the temperature detection terminal () are exposed to the outside through openings provided in the cover plate (), and one end of the cover cap () in the same plane as these is used for connection as a negative input and output terminal ().

Rechargeable battery equipped with battery protection circuit

An intermediate product is formed by combining together plurality of constituent elements. The intermediate product is arranged in a mold an then molten resin is charged in the mold. An opening is formed so as to correspond to a plus terminal, a minus terminal, and a temperature detecting terminal in the intermediate product, and its periphery is covered with the resin. Whereupon, a thin enclosed outer packaging body is realized that is made compact and offers excellent dust-proof, drip-proof structure. Alternatively, the intermediate product is housed in an outer packaging case having an open end that allows insertion of the intermediate product, and resin is charged in the open end, thereby achieving sealing.

Method for forming outer packaging body of product

A rechargeable battery pack includes a rechargeable battery having a first electrode and a second electrode; a circuit assembly disposed at one end on a side of a sealing portion of the rechargeable battery; a battery protection circuit for protecting the rechargeable battery from overcharging, the battery protection circuit arranged on a side of the circuit assembly which faces the sealing portion of the rechargeable battery; a plurality of input and output terminals arranged on another side of the circuit assembly, said input and output terminals to which said first electrode and said second electrode are respectively each connected via the battery protection circuit, thereby constituting an intermediate unit in which the rechargeable battery and the circuit assembly are integrated; and an outer case for sealing therein said intermediate unit, the outer case having openings formed at locations corresponding to the input and output terminals.

A rechargeable battery is integrated with a battery protection circuit that protects the rechargeable battery from overcharging, overdischarging, and so forth. A circuit board ( ) on which are formed a battery protection circuit, a positive input and output terminal ( ), and a temperature detection terminal ( ) is disposed on a rechargeable battery ( ) via a spacer ( ), and the positive and negative electrodes of the rechargeable battery ( ) are connected to the circuit board ( ). This assembly is enveloped by a cover cap ( ) and a cover plate ( ), such that the positive input and output terminal ( ) and the temperature detection terminal ( ) are exposed to the outside through openings provided in the cover plate ( ), and one end of the cover cap ( ) in the same plane as these is used for connection as a negative input and output terminal ( ).

Rechargeable battery with protective circuit

A battery pack that reduces thickness and lightens weight as required for battery power sources of portable electronic equipment. A battery pack is constituted by accommodating a battery and battery protection device between a top case and bottom case forming a pack case. Since the battery is formed accommodated within an external casing wherein positive and negative electrode plates are formed by laminated sheet, reduced thickness and reduced weight of battery pack can be achieved. Also, since the face of bottom case opposite the battery is formed as a resiliently deformable face which is formed of small thickness, when expansion takes place such that the thickness of the battery as a whole increases, resiliently deformable face deforms maintaining a planar condition by resilient deformation, so that there is no possibility of an adverse effect on the equipment due to drum-shaped swelling being produced in battery pack, by such swelling.

Resiliently deformable battery pack

This invention relates to a bottle and a method of mixing with the bottle capable of readily mixing solute or dispersoid and liquid contained in different bottles as required. This invention employs as one bottle a glass or hard plastic bottle like a Vial and as the other bottle a flexible plastic bottle, both bottles are engaged and fluctuated to mix the solute or dispersoid in the liquid.

Growing community of inventors

Kyoto, Japan

Shoji Konishi