Interconnection structure between portable telephone and...

Details Interconnection structure between portable telephone and... Interconnection structure between portable telephone and...

1999-12-13

2001-03-20

Tso, Edward H. (Department: 2838)

Electricity: battery or capacitor charging or discharging

Cell or battery charger structure

C320S112000

Reexamination Certificate

active

06204631

ABSTRACT:

BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a battery pack for a portable phone, more specifically, it relates to a battery pack to be mounted easily onto a portable phone.
2. Description of the Related Art
A detachable battery pack is used in a portable phone. In order to connect the battery pack and the phone electrically, contact pins to be contacted with an electrode of the battery pack are provided in the phone. The contact pins to be connected with the battery pack of the portable phone can move in the vertical direction owing to a spring, but cannot move in the lateral direction. Since the contact pins may break if a force is applied thereon in the lateral direction, the battery pack for the portable phone must be mounted onto the portable phone while avoiding the contact pins so as not to damage the pins due to the contact of the battery pack and the phone electrode pins.
FIGS. 3A and 3B
show the state of mounting a conventional battery pack.
FIG. 3A
is a diagram showing the state of starting the installation of the battery pack.
FIG. 3B
is a diagram showing the state immediately before finishing the installation of the battery pack. As shown in
FIG. 3A
, the battery pack
1
is moved to the lower side (rightward in the figure) of a portable phone
9
(while sliding) with a tip portion
7
of the battery pack
1
supported by contacting with the lower part of the portable phone
9
, and the lower side tip portion
8
of the battery pack
1
maintained at a position higher than pins
2
. As shown in
FIG. 3B
, when the lower side tip portion
8
of the battery pack
1
contacts with the lower gap
10
of the portable phone
9
, the battery pack
1
is inserted into the portable phone
9
. Accordingly, by utilizing the height H of the lower gap
10
, the battery pack
1
can be mounted in the portable phone
9
without contacting the lower side tip portion
8
of the battery pack
1
with the pins
2
.
However, a problem is involved in that pins cannot be protected with the conventional configuration in the case of a portable phone that is so thin that a gap higher than the pins cannot be provided in the rear surface lower portion of the portable phone.
SUMMARY OF THE INVENTION
In order to solve the problem, an object of the invention is to enable easy installation a battery pack in a portable phone without damaging pins.
In order to achieve the object, the invention provides a battery pack comprising projections higher than electrode pins provided at both ends in the width direction of a lower surface lower end portion of the battery pack, corresponding to the position of pitfalls provided at both end portions in the width direction of a rear surface lower portion of the portable phone main body. According to the configuration, the battery pack can be mounted easily onto the portable phone without damaging the pins by maintaining the battery pack higher than the pins according to the projections.
Moreover, the projections are provided with a width capable of being guided slidably by gaps provided at both end portions in the width direction of the rear surface of the portable phone main body. According to the configuration, the projections can be guided to the right position so that the battery pack can be mounted easily onto the portable phone without damaging the pins.
Since a first aspect of the invention is a battery pack comprising projections higher than electrode pins provided at both ends in the width direction of a lower surface lower end portion of the battery pack, corresponding to the position of pitfalls provided at both end portions in the width direction of a rear surface lower portion of the portable phone main body, the effect of preventing damage of the pins by maintaining the height of the battery pack according to the projections can be achieved.
Since a second aspect of the invention is the battery pack of the first aspect, wherein the projections are provided with a width capable of being guided slidably by gaps provided at both end portions in the width direction of a rear surface of the portable phone main body, the effect of facilitating the installation of the battery pack by guiding the projections can be achieved.


REFERENCES:
patent: 5317247 (1994-05-01), Chong et al.
patent: 5786106 (1998-07-01), Aramani
patent: 2 309 819 (1997-08-01), None

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