Thin type electronic instrument

• US 4,777,563 A
• Filed: 04/28/1987
• Issued: 10/11/1988
• Est. Priority Date: 05/02/1986
• Status: Expired due to Term

• Current Assignee: Toshiba Battery Co., Ltd. (Toshiba Corporation)
• Original Assignee: Toshiba Battery Co., Ltd. (Toshiba Corporation)
• Inventors: Asami, Yoshiaki, Teraoka, Hirohito, Suzuki, Shintaro
• Primary Examiner(s): TOLIN, GERALD P
• Application Number:
  US07/043,467
• Time in Patent Office: 532 Days
• Field of Search: 200/5 A, 361/380, 361/392, 361/395, 361/399, 361/417, 361/419, 174/52 PE, 235/145 R, 340/365 R, 364/700, 364/708, 320/2
• US Class Current: 361/739
• CPC Class Codes: G06F 15/0216 Constructional details or arrangements
• CPC Class Codes: H01M 6/40 Printed batteries , e.g. thin film batteries

Abstract

Disclosed in a thin type electronic instrument having a structure comprising a circuit base plate for mounting an integrated circuit chip thereon and a power source battery for supplying power to the circuit base plate sandwiched between a pair of synthetic resin sheets opposed to each other, with the pair of synthetic resin sheets being plastered at the peripheral portions thereof, characterized in that a substrate made of a metal is interposed between the pair of synthetic resin sheet.

The thin type electronic instrument of the present invention is improved in mechanical durability against mechanical shock such as warping or torsion by a stress during carrying or usage, whereby erroneous actuation or breaking can be inhibited.

Claims

1. A thin-type electronic instrument, comprising:

a circuit base plate having an integrated circuit mounted thereon;

a flat power source battery, having positive and negative electrode terminal plates, in electrical communication with said integrated circuit;

a pair of opposing synthetic resin sheets having said base plate and said battery sandwiched therebetween;

a first frame-shaped sealing member enclosing said base plate and said battery and disposed between said resin sheets, said first sealing member having substantially the same peripheral dimensions as said resin sheets and secured to the peripheral portions thereof;

said instrument characterized in that said battery comprises a reinforcing metal substrate having the same shape as said sheets, said substrate functioning as one of said electrode terminal plates;

said instrument further characterized in that a filling layer is interposed in the space between said synthetic sheets external to said battery.

2. The electronic instrument according to claim 1, wherein said battery comprises:

a laminated generating element, comprising;

a positive electrode sheet comprising positive electrode material;

`a negative electrode sheet comprising negative electrode material; and

a separator sheet sandwiched between said positive and said negative electrode sheets;

a second frame-shaped insulating sealing member having first and second cross-section ends, disposed about the periphery of said generating element;

a positive electrode terminal plate covering the surface of said positive electrode sheet opposite said separator sheet; and

a engative electrode terminal plate covering the surface of said negative electrode sheet opposite said separator sheet;

wherein said positive electrode terminal plate is in sealed contact with said first cross-section end of said second frame-shaped sealing member and said negative electrode terminal plate is in sealed contact with said second cross section end of said second frame-shaped sealing member such that said generating element is encapsulated within the region defined by said positive and said negative electrode terminal plates and said sealing member; and

the peripheral portion of one of said terminal plates extends beyond the outer peripheral surface of said frame-shaped insulating member.

3. The electronic instrument according to claim 1, wherein said metal substrate has a width ranging from 53.92 to 54.03 mm and a length ranging from 85.47 to 85.72 mm.

4. The electronic instrument according to claim 2, wherein said metal substrate has a width ranging from 53.92 to 54.03 mm and a length ranging from 85.47 to 85.72 mm.

5. A thin type electronic instrument, comprising a circuit base plate having an integrated circuit mounted thereon and a power source battery supplying power to said circuit base plate, said base plate and said battery being sandwiched between a pair of synthetic resin sheets opposed to each other, a first frame-shaped sealing member enclosing said battery and said base plate and disposed between said resin sheets, said first frame-shaped member being secured to the peripheral portions of said resin sheets, said instrument characterized in that said power source battery is a flat battery having a reinforcing substrate made of a metal which is the same size and shape as the synthetic resin sheets and functions as an electrode terminal plate of said battery, and that a filling layer is interposed in the space other than the portions occupied by said circuit base plate and the power source battery between said pair of synthetic resin sheets.

6. A thin type electronic instrument according to claim 5, wherein the flat battery comprises a generating element comprising a positive electrode sheet, a separator and a negative electrode sheet laminated in this order, a second frame-shaped insulating sealing member surrounding said generating element, a positive electrode terminal plate covering the entire surface of said positive electrode sheet on the side opposite to said separator comprising a mixture of positive electrode materials and one end surface of said second insulating sealing member closely in contact with these;

a negative electrode terminal plate covering the entire surface of said negative electrode sheet and the other end surface of said second insulating sealing member closely in contact with these; and

the whole peripheral portion of one terminal plate being extended as protruded from the outer peripheral end surface of said second frame-shaped insulating member.

7. A thin type electronic instrument according to claim 5, whwerein said reinforcing substrate is made of a metal having a width ranging from 53.92 to 54.03 mm and a length ranging from 85.47 to 85.72 mm.

8. A thin type electronic instrument according to claim 6, wherein said reinforcing substrate is made of a metal having a width ranging from 53.92 to 54.03 mm and a length ranging from 85.47 ato 85.72 mm.

9. A thin type electronic instrument according to claim 5, wherein said flat battery has a lead terminal connecting said other electrode terminal plate to said circuit base plate.