Structure of terminal for coin-shaped battery
First Claim
1. A terminal apparatus for electrical connections to a coin-shaped battery comprising:
- a battery holder having a substantially semi-circular inner wall that defines an opening in which the coin-shaped battery is received with a side surface thereof in engagement with the semi-circular inner wall;
a single first terminal plate for establishing engagement with the side surface of the coin-shaped battery;
a second terminal plate for establishing engagement with a bottom of the coin-shaped battery;
a first hook portion provided on said first terminal plate for producing a bias which urges a first portion of the coin-shaped battery toward said second terminal plate; and
a second hook portion provided on said first terminal plate so as to face the semi-circular inner wall of said battery holder, said second hook portion producing a bias which urges the side surface of the coin-shaped battery into constant engagement with the semi-circular inner wall of said battery holder.
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Accused Products
Abstract
An improved terminal apparatus is provided for electrical connections to a coin-shaped battery of a kind which may be employed in portable electronic equipment. The terminal apparatus includes a positive terminal plate for engaging a side surface (i.e., a positive electrode) of the coin-shaped battery and a negative terminal plate for engaging the bottom (i.e., a negative electrode) of the battery. The positive terminal plate is geometrically oriented so as to establish constant engagement with the side surface of the battery when placed in a battery holder. In a preferred embodiment of the invention, the positive terminal plate is made of a spring member and is curved toward the battery holder to elastically urge the side surface of the battery for constant engagement therewith. Alternatively, the positive terminal plate includes a hook portion engaging the side surface of the battery when placed in the battery holder. Further, the positive terminal plate has formed thereon a magnetized portion for attracting the side surface of the battery when placed in the battery holder for establishing constant engagement therewith.
53 Citations
16 Claims
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1. A terminal apparatus for electrical connections to a coin-shaped battery comprising:
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a battery holder having a substantially semi-circular inner wall that defines an opening in which the coin-shaped battery is received with a side surface thereof in engagement with the semi-circular inner wall; a single first terminal plate for establishing engagement with the side surface of the coin-shaped battery; a second terminal plate for establishing engagement with a bottom of the coin-shaped battery; a first hook portion provided on said first terminal plate for producing a bias which urges a first portion of the coin-shaped battery toward said second terminal plate; and a second hook portion provided on said first terminal plate so as to face the semi-circular inner wall of said battery holder, said second hook portion producing a bias which urges the side surface of the coin-shaped battery into constant engagement with the semi-circular inner wall of said battery holder. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A terminal apparatus for electrical connections to a coin-shaped battery comprising:
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a battery holder having a substantially semi-circular inner wall that defines an opening in which the coin-shaped battery is received in a manner wherein the semi-circular inner wall engages a first portion of a side surface of the coin-shaped battery; a single first terminal plate having an end portion which is curved so as to be contoured to a second portion of the side surface of the coin-shaped battery which is out of engagement with the semi-circular inner wall, and which establishes engagement with the side surface of the coin-shaped battery; a second terminal plate for establishing engagement with a bottom of the coin-shaped battery; a first hook portion provided on the end portion of said first terminal plate for biasing a first portion of the coin-shaped battery toward said second terminal plate; and a second hook portion provided on the end portion of said first terminal plate so as to face the semi-circular inner wall of said battery holder, said second hook portion biasing a second portion of the coin-shaped battery into constant engagement with the semi-circular inner wall of said battery holder.
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10. A terminal apparatus for electrical connections to a coin-shaped battery comprising:
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a battery holder having a substantially semi-circular inner wall defining an opening for receiving the battery in a manner wherein a portion of a peripheral side wall of the battery is in engagement with the semi-circular inner wall; a single first terminal strip for establishing engagement with the peripheral side wall of the battery, said first terminal strip having a length facing the peripheral side wall of the battery; a second terminal plate for establishing engagement with a lower surface of the battery; a first hook portion extending from an upper portion of said first terminal strip, said first hook portion engaging an upper edge portion of the peripheral side wall and producing a spring bias urging the upper edge portion toward the second terminal plate; and a second hook portion extending from a lower portion of said first terminal strip, said second hook portion engaging a lower edge portion of the side wall and producing a spring bias urging the lower edge portion of the peripheral side wall of the battery toward the semi-circular inner wall. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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Specification