JP3986367B2 - Battery pack and mobile phone terminal - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention belongs to a battery or a battery pack incorporated in a small device, and in particular, a battery or a battery pack that can be suitably used for a mobile phone terminal of a subscriber information module (hereinafter referred to as “SIM”) card type. About.
[0002]
[Prior art]
First, a conventional general battery pack built in a mobile phone terminal will be described.
FIG. 7 is a perspective view illustrating a disassembled conventional battery pack. The battery pack 3 mainly closes the battery main body 31 that stores the storage element, the protection circuit 32 that prevents overcharge, overdischarge, and / or overcurrent, the outer case main body 33 that stores them, and the outer case main body 33. In the assembled state, as shown in a perspective view in FIG. 8, it has a rectangular parallelepiped appearance equal to the outer shape of the entire outer case made up of the main body of the outer case 33 and the lid 37. In recent years, since the safety of the battery body 31 has been improved, the protection circuit 32 is not indispensable, and a battery pack having a configuration without the protection circuit 32 has been developed.
[0003]
FIG. 9 shows a battery pack 3 in which both ends in the longitudinal direction are covered with an insulating sheet (not shown) so that only the positive and negative terminals are exposed, and an outer tube (not shown) is applied. Usually, the battery pack 3 is loaded between a mobile phone terminal body and a cover formed to be paired therewith.
[0004]
On the other hand, in one of the mobile phone systems widely spread overseas, subscriber information, that is, a telephone number is recorded on the SIM card separate from the mobile phone terminal main body, so that the subscriber information is stored in the mobile phone terminal. There is a system that can be separated from the main body. Since the SIM card has the subscriber's name and telephone number entered therein, the model of the mobile phone terminal can be exchanged by replacing the SIM card. In addition, if a plurality of SIM cards are provided, it is possible to use different SIM cards with one mobile phone terminal, which is convenient.
[0005]
A general mobile phone terminal of this system is shown in an exploded perspective view in FIG. A mobile phone terminal 1 of this type includes a terminal body 6, a battery pack 3, and a cover 2 that holds the battery pack from a back surface in association with the mobile phone terminal body (hereinafter “terminal body”) 6. In the cellular phone terminal 1, the concave portion 5 in which the SIM card 4 is accommodated is provided between the terminal body 6 and the battery pack 3, and electrical connection can be made simply by placing the SIM card 4 in the SIM card storage portion of the cellular phone terminal 1. Yes, it contributes to the weight reduction of mobile phone terminals by simplifying SIM card replacement and structure. Since the SIM card 4 needs to be securely held by the terminal body 6, conventionally, the shape and size of the recess 5 of the terminal body 6 have been devised.
[0006]
[Problems to be solved by the invention]
However, in a high temperature environment, the SIM card 4 and its peripheral members are deformed with expansion and softening, and the holding force of the SIM card 4 may be weakened. If the holding power is weak, the information of the SIM card 4 is not transmitted to the terminal body 6 and the mobile phone terminal 1 does not function.
Therefore, an object of the present invention is to securely hold the SIM card 4 in the terminal body 6 by the configuration on the battery side.
[0007]
[Means for Solving the Problems]
In order to solve the problem, the battery pack of the first invention of the present invention is a battery pack including an outer case that houses a battery main body containing a power storage element.
The outer case integrally has an information recording card presser (hereinafter also simply referred to as “card presser”) protruding from the main surface on one main surface thereof.
[0008]
According to the battery pack of the present invention, since the battery pack has the card press provided so as to protrude from the main surface (specifically, the main surface of the exterior case), the information recording card such as the SIM card is connected to the terminal main body. When the battery pack is stored in a predetermined position such as a concave portion of the terminal body in such a manner as to be sandwiched between battery packs, a sufficient press margin can be taken. For this reason, the information recording card and the terminal body are reliably electrically connected. In this regard, in the conventional structure of FIG. 8, since the SIM card 4 itself is thin, it is difficult to make the depression 5 shallower than the SIM card 4 to secure the press margin. This is different from the high cost required for dimensional accuracy.
[0009]
If the card holder itself is separated from the battery pack, when the SIM card is replaced or the battery is replaced, both the SIM card and the card holder must be removed and then reattached. Therefore, this separate system has structural defects such as complication of parts replacement due to an increase in the number of replacement parts, a possibility of mistake in the card presser mounting direction, or a possibility of loss of the card presser.
In this respect, since the battery pack of the present invention is provided with the card presser integrally with the exterior case, such a worry is unnecessary. In addition, as a means provided integrally, there exist methods, such as forming integrally, or fixing with an adhesive agent after forming an exterior case and a card holder separately, and any may be sufficient.
[0010]
A mobile phone terminal suitable for a battery pack having a card press as described above is
The battery pack having the card holder, the information recording card having predetermined information and having contacts on the outer surface, and the battery pack as a power source and connected to the information recording card to receive and transmit the information. A mobile phone terminal body and a cover for loading the battery pack and the information recording card to the mobile phone terminal body by engaging with the mobile phone terminal body,
The mobile phone terminal main body has a recess for receiving the information recording card at the time of loading, and a terminal is provided on the bottom of the recess to elastically contact the contact of the information recording card.
[0011]
According to this mobile phone terminal, since the battery pack has the card presser, a sufficient presser margin can be taken for reliable electrical connection. And since the terminal body has a recess for receiving the information recording card, and the terminal is provided on the bottom of the recess so as to elastically contact the contact point of the information recording card, the terminal can be used even if it takes a sufficient holding margin as described above. The body does not overstress the battery pack. The terminal can be formed so as to be elastically abutted against the contact by itself being formed by a leaf spring or by incorporating a spring or rubber.
[0012]
By the way, when the card holder is provided on one main surface of the battery pack to be considerably high, if the battery pack is accidentally dropped when the battery pack is removed from the terminal body in order to install or replace the battery pack, the card holder We face the problem of impact from dropping on the main surface of the battery pack. This is because the outer case provided with the card retainer and the battery main body are in close contact with each other, and if external stress such as impact is applied to the card retainer portion, the battery performance may be adversely affected due to deformation of the battery main body.
[0013]
Therefore, a secondary problem of the present invention is that in a small device represented by a mobile phone terminal or the like, even when a battery pack equipped with a card retainer falls with the card retainer facing downward, the battery main body is affected by an impact. The object is to provide a battery pack that does not adversely affect the battery pack. Another secondary problem is to provide a mobile phone terminal that is well loaded with such a battery pack.
[0014]
In order to solve the secondary problem, the battery pack according to the first aspect of the present invention is a battery pack including an exterior case that houses a battery main body containing a power storage element.
When the information recording card presser has a rectangular parallelepiped shape, and the outer case protrudes from one main surface of the main surface in addition to the information recording card presser , along the corner or ridge line of the main surface, It is characterized by integrally having a protrusion made of an elastic body protruding from the information recording card holder with the main surface as a reference.
[0015]
According to the configuration of the battery pack of the present invention , even if the battery pack falls with the card press down, the tip of the projection hits the ground or the floor before the card press, so that the impact applied to the card press is small. And the protrusion is provided along the corner or the ridgeline of the main surface of the exterior case, and the corner and the ridgeline are originally resistant to impact. This is because the impact applied to the corners and ridge lines is distributed in two directions, the main surface and the side surface. Therefore, the battery body is hardly damaged when dropped.
[0016]
In the battery pack of the present invention, it is preferable to place the protrusions along the four ridge lines of the outer case or all the four corners, so that the strength is further enhanced and the protrusions are located away from the battery body.
Since the projection is molded by an elastic body, even when subjected to stress due to falling, the shock is absorbed by elasticity and to prevent damage to the projections themselves.
[0017]
In order to solve the secondary problem, a mobile phone terminal suitable for the battery pack of the present invention is:
The battery pack according to the present invention, the information recording card having predetermined information and having contacts on the outer surface, and the battery pack as a power source and connected to the information recording card to receive the information can be transmitted and received. The mobile phone terminal body and a cover for loading the battery pack and the information recording card to the mobile phone terminal body by engaging with the mobile phone terminal body,
The mobile phone terminal main body has a first recess for receiving the information recording card and a second recess for receiving the protrusion when loaded, and a terminal that elastically contacts the contact of the information recording card at the bottom of the first recess. The second recess is formed deeper than the protrusion length of the protrusion.
[0018]
When the battery pack is also used as a power source for a mobile phone terminal, it must be electrically connected to the terminal body and stored. According to the configuration of the cellular phone terminal of the present invention, since the second concave portion of the terminal body is formed deeper than the protruding length of the protrusion, the excessively deep portion escapes, and the battery pack and the information recording card are loaded. The bottom of the second recess does not hit the tip of the protrusion. Therefore, when pressure is applied to the information recording card via the card presser during loading, most of the pressure is concentrated between the terminal and the contact, and as a result, the connection between the terminal and the contact is ensured. And since the terminal itself is formed of a leaf spring or incorporates a spring or rubber so that it contacts the contact elastically, even if the pressure at the time of loading is a little large, the information recording card There is no deformation.
[0019]
In addition, when it is a battery in which a protection circuit is not essential and the battery container which encloses a storage battery has sufficient intensity | strength, an exterior case will also become unnecessary. In such a case, the card presser may be formed on the battery container.
Therefore, this second invention is
In a battery consisting of a storage element and a battery container enclosing the storage element,
The battery case has a rectangular parallelepiped information recording card presser projecting from the main surface on one main surface thereof, and an elasticity protruding from the information recording card presser along the corner or ridge line of the main surface with respect to the main surface. It has the protrusion which consists of a body integrally, It is characterized by the above-mentioned. In the second invention as well, for the same reason as in the first invention, it is possible to make a sufficient holding allowance for the information recording card, and it is possible to prevent mistakes or loss of the card pressing direction .
And a mobile phone terminal suitable for the second invention is:
The battery according to the second aspect of the invention, an information recording card containing predetermined information and having a contact on the outer surface, and a portable device that can receive and transmit information by receiving the information by connecting the battery to the information recording card. It consists of a phone terminal body and a cover for loading a battery and an information recording card to the cell phone terminal body by engaging with the cell phone terminal body,
The mobile phone terminal main body has a first recess for receiving the information recording card and a second recess for receiving the protrusion when loaded, and a terminal that elastically contacts the contact of the information recording card at the bottom of the first recess. The second recess is formed deeper than the protrusion length of the protrusion.
DETAILED DESCRIPTION OF THE INVENTION
Embodiment 1
A battery pack according to a first embodiment of the present invention and a mobile phone terminal loaded with the battery pack will be described with reference to the drawings. The cellular phone terminal 1 according to the embodiment includes a terminal body 6, a battery pack 3, and a cover 2 as shown in a sectional view in FIG. The battery pack 3 is the same as the conventional configuration shown in FIG. 5 in that the battery pack 3 is composed of a battery main body containing a power storage element, a protection circuit connected to the battery main body, and an exterior case for storing them. Is omitted. The cover 2 may be the same as the conventional configuration.
[0020]
The battery pack 3 is different from the prior art in that it has a structure in which the card presser 7 is integrally formed on one main surface of the battery pack 3, that is, on the main surface of the exterior case. Accordingly, the concave portion 5 of the terminal body 6 is formed slightly deeper than the total thickness of the SIM card 4 and the card presser 7. A terminal 61 is provided at the bottom of the recess 5 so as to protrude when the battery pack 3 is not loaded and to be elastically retracted by the pressure received from the card presser 7 during loading. As a result, the SIM card 4 is securely pressed and fixed to the terminal body 6 and the card holder 7 does not have to be reattached each time the SIM card 4 is attached or detached.
[0021]
As described above , when the SIM card holder is provided on one main surface of the battery pack, the card holder is pressed if the battery pack is accidentally dropped when the battery pack is removed from the terminal body 6 in order to install or replace the battery pack. There is a possibility that an impact due to dropping may be applied to the main surface of the battery pack. Since the outer case main body 33 or the lid 37 provided with the card presser and the battery main body 31 are in close contact with each other, if an external stress such as an impact is applied to the card presser part, the battery performance is adversely affected by deformation of the battery main body.
An improved battery pack is shown in FIG. 2 (a) as a front view, FIG. 2 (b) as a side view, and FIG. 3 as a perspective view. The battery pack 3 is made of a resin comprising a rectangular parallelepiped battery main body 31 containing a power storage element, a protection circuit 32 for preventing overcharge, overdischarge and / or overcurrent, an outer case main body 33 for storing them, and a lid 37. And an exterior case.
[0022]
A spacer 34 for providing a space 36 around the battery body and the protection circuit is provided on the inner periphery of the outer case body 33. A rectangular parallelepiped card presser 7 smaller than the lid 37 is formed integrally with the lid 37 on the main surface of the lid 37. Further, projections 35 slightly projecting from the card presser 7 are integrally provided at the four corners of the main surface. 2 and 3 show examples in which the protrusions 35 are provided at the four corners, but they may be two or one corner on the diagonal line, and may extend from corner to corner as shown in FIG. It may be formed along the ridgeline as shown in FIG.
The card retainer 7 has a rectangular parallelepiped shape having substantially the same main surface as the card shape for the purpose of uniformly pressing the SIM card, and is located at the center of the cover 37 or substantially at the center so that pressure is uniformly applied from the outside. ing.
[0023]
According to the battery pack 3, even if the battery pack 3 is accidentally dropped, the protrusion 35 collides first and receives stress before the card presser 7 hits the floor or the ground. Since the protrusions 35 are originally formed at the corners having a strong structure, the impact on the battery body 31 and the protection circuit 32 is small. Furthermore, since the space part 36 is provided in the corner, the space part 36 deform | transforms and absorbs the drop impact which a protrusion receives. Therefore, this also protects the battery body and the protection circuit from impact.
[0024]
The protrusion 35 is formed of an elastic body such as urethane rubber separately from the outer case . As a result , the protrusion 35 is elastically deformed instantaneously upon receiving an impact caused by dropping, and absorbs the stress caused by the impact. However, it is preferable that the height of the protrusion 35 is sufficiently higher than the card retainer 7 so that the card retainer 7 does not hit the floor at the same time.
[0025]
Next, the configuration and operation when the battery pack 3 is used as a power source for a mobile phone terminal will be described. FIG. 6 is a cross-sectional view showing the mobile phone terminal 1 in a state where the battery pack 3 and the SIM card 4 are loaded in the terminal body 6 and closed with the cover 2. For convenience, the same reference numerals are used for the same components as those of the conventional mobile phone terminal shown in FIG.
[0026]
The battery pack 3 and the SIM card 4 are loaded on the back surface of the terminal body 6. In addition to the wide recess 5 that receives the SIM card 4, a narrow recess 62 that receives the protrusion 35 is formed on the back surface of the terminal body 6. A terminal 61 connected to a circuit (not shown) inside the terminal body 6 is provided at the bottom of the recess 5. The terminal 61 slightly protrudes from the bottom of the recess 5 when the battery pack 3 and the SIM card 4 are not loaded, but when loaded, the terminal 61 is always elastic upward by a spring or the like so as to retract with the pressure received from the card holder 7. Has been pushed. The depth of the recess 5 is designed to be approximately equal to the sum of the protruding length of the card retainer 7 and the thickness of the SIM card 4. On the other hand, the recess 62 is designed deeper than the protrusion length of the protrusion 35.
[0027]
When the battery pack 3 and the SIM card 4 are loaded, the claw (not shown) of the cover 2 is inserted into a predetermined hole (not shown) of the terminal body 6, thereby fixing the cover 2 and the terminal body 6 to each other. ing. At the same time, the pressure of the cover 2 is applied to the battery pack 3. And since the recessed part 62 is deeper than the protrusion 35, the difference of the depth of the recessed part 62 and the protrusion length of the protrusion 35 becomes escape. For this reason, the battery pack 3 does not receive a drag force from the terminal body 6 via the protrusion 35, and most of the pressure from the cover 2 is transmitted to the SIM card 4 via the card retainer 7, and contacts and terminals of the SIM card 4 61 is securely connected.
[0028]
Embodiment 2
A second embodiment of the present invention will be described with reference to FIG. FIG. 11 is a perspective view showing the battery of the second embodiment. The battery 131 of this embodiment is a type that does not require a protection circuit, and therefore, it is not necessary to store the battery 131 in an outer case. Therefore, the card presser 17 is integrally formed in the battery container 133 that encloses the power storage element. The battery container 133 is made of a metal such as aluminum and has a strength capable of maintaining a cuboid alone. The card holder 17 is fixed to the main surface of the battery container 133 by means such as welding or adhesive. At the four corners of the main surface, protrusions 135 slightly projecting from the card presser 17 are formed integrally with the battery container 133 by the same means as the card presser 17.
Also in this battery 131, since the protrusion 135 protrudes from the card presser 17, the card presser 17 is protected from impact.
[0029]
【The invention's effect】
As described above, according to the present invention, in the battery pack having the card holder on one main surface, when the battery pack falls, it is possible to significantly reduce the influence of the drop impact applied to the battery body via the SIM card holder. It becomes.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view showing a mobile phone terminal according to a first embodiment.
2A is a front view of the battery pack of Embodiment 1 , and FIG. 2B is a side view of the same.
FIG. 3 is a perspective view of the battery pack.
FIG. 4 is a perspective view showing a modification of the battery pack.
FIG. 5 is a perspective view showing another modification of the battery pack.
FIG. 6 is a cross-sectional view showing a mobile phone terminal loaded with the battery pack of the embodiment. It is a perspective view which shows the conventional battery pack.
FIG. 7 is an exploded perspective view showing a conventional battery pack.
FIG. 8 is a perspective view showing a state in which the battery pack is assembled.
FIG. 9 is a perspective view showing a state in which the battery pack is covered with an outer tube.
FIG. 10 is an exploded perspective view showing a conventional cellular phone terminal.
11 is a perspective view showing a battery according to Embodiment 2. FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Cell-phone terminal 2 ... Cover 3 ... Battery pack 31 ... Battery main body 32 ... Protection circuit 33 ... Exterior case main body 34 ... Spacer 35 ... Protrusion 36 ... Space part 37 ... Cover 4 ... SIM card 5 ... First recessed part 6 ... Mobile phone body 61 ... Terminal 62 ... Escape 7 ... SIM card holder

Claims (4)

In a battery pack with an exterior case that houses a battery body containing a storage element,
The outer case has a rectangular parallelepiped information recording card presser projecting from one main surface of the main surface, and an elasticity protruding from the information recording card presser along the corner or ridge of the main surface with respect to the main surface. A battery pack characterized by integrally having a protrusion made of a body . The battery pack according to claim 1, an information recording card containing predetermined information and having contacts on an outer surface, and the battery pack as a power source and connected to the information recording card to receive and transmit the information. A mobile phone terminal body and a cover for loading the battery pack and the information recording card to the mobile phone terminal body by engaging with the mobile phone terminal body,
The mobile phone terminal main body has a first recess for receiving the information recording card and a second recess for receiving the projection when loaded, and a terminal that elastically contacts the contact of the information recording card at the bottom of the first recess. A mobile phone terminal, wherein the second recess is formed deeper than the protrusion length of the protrusion. In a battery comprising a storage element and a battery container enclosing the storage element,
The battery case has a rectangular parallelepiped information recording card presser protruding from the main surface on one main surface thereof, and an elasticity protruding from the information recording card presser along the corner or ridge of the main surface with respect to the main surface. A battery characterized by integrally having a protrusion made of a body . The battery according to claim 3, an information recording card having predetermined information and having a contact on the outer surface, and the battery as a power source and connected to the information recording card to receive and transmit / receive information. The mobile phone terminal body and a cover for loading the battery and the information recording card to the mobile phone terminal body by engaging with the mobile phone terminal body,
The mobile phone terminal main body has a first recess for receiving the information recording card and a second recess for receiving the projection when loaded, and a terminal that elastically contacts the contact of the information recording card at the bottom of the first recess. A mobile phone terminal, wherein the second recess is formed deeper than the protrusion length of the protrusion.

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