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Rechargeable battery enabling reduction of battery overheating probability during charging
| Details |
Inventors: Liu, Jiewen;
Assignee: Ericsson Inc. (Research Triangle Park, NC)
Primary Examiner: Wolfe; Willis R.
Assistant Examiner: Vo; Hieu T.
Attorney, Agent or Firm: Nixon & Vanderhye P.C.
A battery for an electronic device includes a device engaging side having structure that operatively secures the battery to the electronic device to provide power to the electronic device, an exterior side opposite from the device engaging side, which faces a supporting surface during charging, and a spacer attached to the exterior side that engages the supporting surface during charging, thereby spacing the exterior side from the supporting surface during charging. By virtue of the structure including a spacer attached to the exterior side of the battery, the exterior side is spaced from the supporting surface during charging, and heat dissipation and air circulation are improved. The spacer may be formed integral with the exterior side and may be formed in any of a plurality of shapes and configurations. Spacing the exterior surface of the battery from the supporting surface provides an efficient and inexpensive method of reducing the probability of battery overheating during charging. |
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DETAILED DESCRIPTION It is therefore an object of the invention to provide a configuration that overcomes the drawbacks noted above with respect to conventional arrangements.
It is another object of the invention to provide a simple and effective configuration for reducing battery overheating probability during charging, while eliminating a built-in thermistor.
The structure according to the present invention spaces the battery from a supporting surface during charging.
The additional space is easily created without major structural modification of the battery design.
By virtue of the space, air circulation and heat dissipation around the battery are improved, and overheating probability is reduced.
Phone batteries typically include a smooth and flat exterior surface.
During battery charging, a phone connected to a charger is put on a supporting surface such as a desk, table or the like.
Since both the battery and the supporting surface are flat and smooth, there is little air circulation from the battery, and heat is difficult to dissipate.
Air circulation can be improved by generating a space between the battery and the supporting surface.
In an exemplary embodiment according to the invention, there is provided a rechargeable battery for an electronic device that is recharged by coupling with a charger connected to a power source.
The battery includes a device engaging side including structure that operatively secures the battery to the electronic device to provide power to the electronic device, an exterior side opposite from the device engaging side that faces a supporting surface during charging, and a spacer attached to the exterior side that engages the supporting surface during charging, thereby spacing the exterior side from the supporting surface during charging.
The spacer is preferably formed integral with the exterior side.
In alternative arrangements, the spacer includes at least one bar extending substantially laterally across the exterior side, at least one bar extending substantially longitudinally along the exterior side, at least one peg, raised letters formed on the exterior side, or a raised pattern formed on the exterior side
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