Electricity: battery or capacitor charging or discharging – Cell or battery charger structure – For battery pack
Reexamination Certificate
2002-02-13
2003-02-04
Tso, Edward H. (Department: 2838)
Electricity: battery or capacitor charging or discharging
Cell or battery charger structure
For battery pack
Reexamination Certificate
active
06515450
ABSTRACT:
TECHNICAL FIELD
The present invention relates to mobile equipment such as a mobile telephone, and more particularly to a holding structure for an internal battery which can be attached and removed.
BACKGROUND ART
Conventionally, there has been a holding structure for an internal battery which can be attached and removed as shown in FIG.
8
. As shown in
FIG. 8
, an internal battery
42
is accommodated in a battery housing portion
44
concaved on a rear case
41
of a mobile telephone, and a battery cover
43
is then attached to the rear case
41
from above. Thus, the internal battery
42
is built in the mobile telephone. In the following description, a longitudinal direction of the rear case
41
is referred to as a vertical direction, a direction which is orthogonal to the longitudinal direction of the rear case
41
along a bottom face of the battery housing portion
44
is referred to as a transverse direction, and a direction which is perpendicular to the bottom face of the battery housing portion
44
is referred to as a height direction. Moreover, the side turned upward during the use of the mobile telephone is referred to as a front portion and the side turned downward is referred to as a rear portion.
The battery housing portion
44
is concaved to have the shape of an almost rectangular parallelepiped over the surface of the rear case
41
. A bottom face is provided with a connector opening
45
and an internal wall surface on a front end is provided with one fitting hole
47
. Moreover, a pair of second engagement projections
49
are provided in a rear edge portion
41
B of the rear case
41
. The internal battery
42
has the external shape of an almost rectangular parallelepiped. When the internal battery
42
is accommodated in the battery housing portion
44
, a wire
46
is led out in an optional position. A fitting projection
50
is provided on the front end of the battery cover
43
and a pair of ribs (not shown) to be engaged with the second engagement projections
49
are provided on the back face of the rear edge portion.
In the mobile telephone having such a structure, first of all, the wire
46
of the internal battery
42
is connected to a connector provided in the connector opening
45
, and a cable of the wire
46
and the internal battery
42
are accommodated in the battery housing portion
44
. Next, a fitting projection
50
on the tip of the battery cover
43
is opposed to the fitting hole
47
provided on the front end of the battery housing portion
44
and the battery cover
43
is slid forward and is thus attached to the rear case
41
.
FIG. 9
is a sectional view showing a state in which the attachment is completed. As shown in
FIG. 9
, the wire
46
led out of the internal battery
42
is connected to a connector
53
provided on a printed circuit board
51
and the power of the internal battery
42
is supplied to each portion of the mobile telephone through the wire
46
and the connector
53
. Moreover, the fitting projection
50
provided on the tip of the battery cover
43
is elastically deformed when it is to be inserted into the fitting hole
47
. After the insertion, an engagement click provided upward on the tip of the fitting projection
50
catches in the internal wall surface of the rear case on the upper side of the fitting hole
47
. Moreover, a pair of ribs
54
provided on the back face of the rear edge portion of the battery cover
43
are engaged with the second engagement projections
49
.
However, the conventional internal battery holding structure described above has the following problems (1) to (3).
(1) Since it is necessary to connect the wire
46
of the internal battery
42
to the connector
53
, the attachment takes a great deal of time and labor. Moreover, when the internal battery
42
is to be taken out, it is necessary to remove the wire
46
and a great deal of time and labor is similarly taken.
(2) The internal battery
42
is only held by the internal face of the battery cover
43
and is not held in the rear case
41
by itself. Therefore, when the batter cover
43
slips off due to a shock such as a drop, the internal battery
42
also jumps out of the battery housing portion
44
so that an appearance is deteriorated. In that case, moreover, if the wire
46
slips out of the connector
53
, a power source is turned off. Furthermore, there is a possibility that the wire
46
might be cut or the connector
53
might be broken.
(3) Since the shock of the internal battery
42
is directly transmitted to the battery cover
43
, the battery cover
43
is easily broken.
In consideration of such problems, the present invention has been made and has an object to provide an internal battery holding structure in mobile equipment in which an internal battery can be attached and removed easily and does not jump out even if a battery cover slips off due to a shock such as a drop.
DISCLOSURE OF INVENTION
The present invention provides an internal battery holding structure in mobile equipment comprising a case having a battery housing portion, an internal battery to be accommodated in the battery housing portion and a battery cover to be attached to cover the battery housing portion, wherein the internal battery is formed to have a shape of an almost rectangular parallelepiped, has an electrode terminal provided on one of ends in a vertical direction thereof and has an engagement projection provided on the other end in the vertical direction, the battery housing portion is concaved to have the shape of the almost rectangular parallelepiped in the case, has a pressing connector provided on one of ends in a vertical direction thereof and has, on the other end in the vertical direction, a battery hook for pressing the engagement projection interlockingly with a sliding operation from a release position to a lock position, and the battery hook is slid from the release position to the lock position to press the engagement projection, thereby causing the electrode terminal to abut on the pressing connector and fixing the internal battery to the battery housing portion. By such a structure, the electrode terminal of the internal battery is pressed against the pressing connector so that electrical connection can be obtained. Therefore, the internal battery can be attached and removed easily. Moreover, the internal battery can be held by one of the ends in the vertical direction of the battery housing portion and the battery hook. Therefore, it is possible to prevent the internal battery from jumping out even if the battery cover slips off due to a shock such as a drop.
REFERENCES:
patent: 5457376 (1995-10-01), Chong et al.
patent: 5825158 (1998-10-01), Wei
patent: 5905632 (1999-05-01), Seto et al.
patent: 5933330 (1999-08-01), Beutler et al.
patent: 0 712 226 (1996-05-01), None
patent: 2 325 696 (1998-12-01), None
Ikeda Yasunobu
Judai Kanta
Kaiho Takashi
Sato Takeshi
Matsushita Electric - Industrial Co., Ltd.
Pearne & Gordon LLP
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