JP3050006U - Emergency charger for mobile phone - Google Patents

Abstract

(57) [Summary] [Purpose] When the mobile phone is used outdoors, the present invention is powered by AAA or AA batteries that can be easily obtained anywhere. By using it as an auxiliary power supply, it is possible to eliminate 'call interruption' and 'standby failure' due to insufficient battery power. [Structure] A terminal (2) for holding a dry battery (1) for charging in series is provided inside a case (3) as a main body, and a terminal (2) is connected to a connector (5).
It is connected by. Lid (6) fitted in the case
Is removed so that the battery can be replaced.

Description

[Detailed description of the invention]

[0001]

[Industrial applications]

 The idea is that when a low battery warning is displayed while using a mobile phone, simply connect the product to the mobile phone and continue talking. Furthermore, even if you forget to remove the device after the call, you will be provided with a device that will not overcharge.

[0002]

[Prior art]

 Conventional rapid or emergency chargers use electronic circuits to control charging current, prevent backflow, and protect the battery to be charged from overcharging. In addition, power sources obtained from AC 100V for home use or 12V for cars are limited in use places, and in places where these cannot be used, it was inevitable that calls could be cut due to insufficient battery power.

[0003]

[Problems to be solved by the invention]

 The idea is that in places where a home power supply or car charger cannot be used, it is desirable to continue the call even though the low battery warning of the mobile phone is displayed, or to set the standby state after that. It solves what you want to do, and avoids overcharging even if you forget to remove the charger. In addition, by avoiding the use of any electronic components, you can prevent accidents caused by their deterioration or breakdown.

[0004]

[Means to solve the problem]

 The present invention solves the conventional disadvantages in the following way. (B) The batteries used for charging are AAA or AA alkaline batteries that can be easily obtained anywhere in Japan. Manganese batteries can be used, but the charge will be lower. These are connected in series to obtain an output voltage of 4.5V at the beginning of charging. (B) The case that contains three batteries and the connector that fits into the interface connector of the mobile phone are combined or integrated to make it easy to carry. (C) The charge / discharge characteristics and battery capacity difference between the alkaline or manganese dry battery on the charging side and the lithium ion or nickel hydride battery on the charged side are used for charging. The initial voltage of the battery on the charging side is 4.5V and the voltage difference is smaller than the voltage on the charging side of 3.6V. And the battery capacity makes the charging side smaller than the charging side. (D) By utilizing the charge / discharge characteristics of each other, a diode for backflow prevention is not required, and a voltage drop of 0.7 V per diode is avoided, so that the charge voltage difference can be reduced. This enables quick charging without controlling the charging current by electronic circuits, and also keeps the battery connected as an auxiliary power source for a long time because overcharging does not occur. A fully charged lithium ion battery with a voltage of 3.95 V and a capacity of 1300 mAH was connected to three AAA alkaline batteries with a used voltage of 2.7 V and a reverse charge test was performed. It became 8V and charging was finished. The batteries showed no damage and could be reused.

[0005]

[Action]

 This device provides an emergency charger that doubles as an auxiliary power source for mobile phones.

[0006]

【Example】

 The example of this invention is described. (B) As shown in Fig. 1, a terminal (2) for connecting three batteries in series is placed inside a case (3) in which AAA batteries or AA batteries (1) can be inserted. ), A connecting wire (4) connected thereto, a connector (5) at the end thereof, and a removable emergency charger (6) for replacing a dry battery. (B) As shown in FIGS. 2 and 3, a portable emergency charger whose case (3) has a cylindrical or pencil shape.

[0007]

[Effect of the invention]

 Carrying the product of this invention avoids a situation where you can no longer disconnect or become unable to wait due to insufficient battery power in your mobile phone. In addition, the use of batteries that can be easily obtained anywhere can be used without worrying about running out of batteries.

[Brief description of the drawings]

FIG. 1 is a diagram showing a configuration of a charger of the present invention.

FIG. 2 is a view showing an example of the cylindrical case of FIG. 1;

FIG. 3 is a view showing an example of the pencil case of FIG. 2;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Dry battery 2 Terminal 3 Case 4 Connection line 5 Connector 6 Lid

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[Procedure amendment]

[Submission date] January 16, 1998

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Claims for utility model registration

[Correction method] Change

[Correction contents]

[Utility model registration claims]

Claims (2)

[Utility model registration claims] 1. A series of three AAA batteries, connected in series, and housed in a case to have a shape suitable for carrying, without any electronic circuit, and having an initial voltage of about 4.5 volts (V). This is a device that charges the battery inside the mobile phone when the battery level is low by connecting to the interface connector of the mobile phone using only the connection wire and connector. The product of the present invention is applied to mobile phones with an electric field performance of 3.6V / capacity of 300 to 800mAh (mAH). 2. An appliance having the same structure as in claim 1, wherein three AA batteries are used, and the built-in battery performance of the portable telephone is set to a voltage of 3.
Applies to those with 6V / capacity 800mAH or more.