Battery holder for electronic apparatus

• US 5,240,792 A
• Filed: 05/05/1992
• Issued: 08/31/1993
• Est. Priority Date: 05/13/1991
• Status: Expired due to Fees

• Current Assignee: Matsushita Electric Industrial Company Limited (Panasonic Holdings Corporation)
• Original Assignee: Matsushita Electric Industrial Company Limited (Panasonic Holdings Corporation)
• Inventors: Kawabata, Yoshimasa, Hayashi, Takahiro
• Primary Examiner(s): Skapars, Anthony
• Application Number:
  US07/878,455
• Time in Patent Office: 483 Days
• Field of Search: 429/1, 429/9, 429/123, 429/97, 429/98, 429/100, 429/96, 220/326, 220/346, 220/348, 220/323, 361/392, 439/627
• US Class Current: 429/100
• CPC Class Codes: H01M 50/216 adapted for button or coin cells
• CPC Class Codes: Y02E 60/10 Energy storage using batteries

Abstract

A battery holder for electronic apparatus for holding a coin-shaped battery includes a battery case which is provided with at least two protrusions, the coin-shaped battery being inserted in such a way that it is placed under these protrusions. Electrode terminals exert a resilient force so that the coin-shaped battery may be secured in position while maintaining satisfactory contact with the electrode terminals.

Claims

1. A battery holder for holding a coin-shaped battery for use in an electronic apparatus, the battery holder comprising:

a battery case having a battery insertion opening into which the coin-shaped battery is to be inserted;

at least two protrusions provided at opposing positions on edge portions of the battery insertion opening;

a first battery terminal having resiliency, located on one side of the battery insertion opening for contacting an edge of the coin-shaped battery; and

a second battery terminal having resiliency, located at a bottom portion of the battery insertion opening for contacting a face of the coin-shaped battery;

at least one of the protrusions having a cutout for receiving a tool for pushing the inserted battery clear of the at least one protrusion such that the battery may be removed from the battery insertion opening;

whereby the resiliency of the first and second battery terminals holds the inserted battery in position against the protrusions and provides a requisite contact pressure between the battery terminals and the coin-shaped battery.

2. A battery holder as in claim 1, wherein the second battery terminal has sufficient resiliency that when the inserted battery is pushed clear of the at least one protrusion, the second battery terminal pushes the inserted battery out of the battery insertion opening.