Charge System, Mobile Electronic Device, Cell Terminal Used for Them, and Secondary Cell

• US 20100171460A1
• Filed: 06/13/2008
• Published: 07/08/2010
• Est. Priority Date: 06/13/2007
• Status: Active Grant

• Current Assignee: Kyocera Corporation
• Original Assignee: Kyocera Corporation
• Inventors: Nakajima, Masayoshi, Koyama, Akira
• Granted Patent: US 8,421,405 B2
• Time in Patent Office: Days
• US Class Current: 320/106
• CPC Class Codes: H01M 10/425 Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing printed circuits H05K1/00
• CPC Class Codes: H01M 10/46 Accumulators structurally combined with charging apparatus circuits for charging H02J7/00
• CPC Class Codes: H01M 50/574 Devices or arrangements for the interruption of current
• CPC Class Codes: H01M 50/588 outside the batteries, e.g. incorrect connections of terminals or busbars
• CPC Class Codes: H02J 7/00043 using switches, contacts or markings, e.g. optical, magnetic or barcode
• CPC Class Codes: H02J 7/00047 with provisions for charging different types of batteries
• CPC Class Codes: H04M 1/0214 Foldable telephones, i.e. with body parts pivoting to an open position around an axis parallel to the plane they define in closed position combined with translation movement H04M1/0235
• CPC Class Codes: H04M 1/0262 for a battery compartment
• CPC Class Codes: H04M 1/72412 using two-way short-range wireless interfaces
• CPC Class Codes: Y02E 60/10 Energy storage using batteries

Abstract

It is possible to prevent charge of an incompatible secondary cell while suppressing the size of a mobile electronic device and a secondary cell without increasing power consumption so as to prevent damage of the secondary cell or the mobile electronic device by charge. A detachable secondary cell (30) supplies power to a mobile electronic device (2). The mobile electronic device (2) includes: a cell terminal (60) which outputs and inputs power to/from the mounted secondary cell (30); non-contact information extraction means (20) which performs a magnetic field communication; a loop antenna (26) which transmits/receives a signal using an electromagnetic wave by the non-contact information extraction means (20); and control means (22) which acquires particular information outputted from the non-contact information extraction means (20) and controls charge of the secondary cell (30) according to the acquired particular information. The loop antenna (26) is arranged in the cell terminal (60).

Claims

1. A charge system comprising:

a secondary battery attachably and detachably installed;

a mobile electronic device to which electric power is supplied by the secondary battery; and

a charging device charging the secondary battery via the mobile electronic device,

wherein the secondary battery comprises;

a battery cell accumulating electric power;

an electrode connected to the battery cell; and

non-contact output means capable of outputting specific information by magnetic field communication,

wherein the mobile electronic device comprises;

a battery terminal transferring electric power with the electrode of the secondary battery;

non-contact means for extracting information that performs magnetic field communication with the non-contact output means; and

a control means that acquires the specific information outputted by the non-contact means for extracting information and controls charging of the secondary battery based on the acquired specific information while the charging device is connected with the mobile electronic device,

wherein the non-contact means for extracting information has a loop antenna for performing transmission and reception of signals through electromagnetic waves, and

wherein the loop antenna is placed within the battery terminal, the electrode is fixed at an end portion of the battery cell, and the non-contact output means is fixed at the end portion of the battery cell at which the electrode is fixed.

2. A mobile electronic device that is supplied with electric power by a secondary battery attachably and detachably installed, comprising:

a battery terminal transferring electric power with the installed secondary battery;

non-contact means for extracting information performing magnetic field communication;

a loop antenna with which the non-contact means for extracting information performs transmission and reception of signals through electromagnetic waves; and

control means for acquiring specific information outputted by the non-contact means for extracting information and controlling charging of the secondary battery based on the acquired specific information, wherein

the loop antenna is placed within the battery terminal.

3. The mobile electronic device according to claim 2,

wherein the battery terminal comprises:

a plurality of terminals abutting electrodes of the secondary battery; and

a main body that holds the plurality of terminals to be urged in a predetermined direction, and

wherein the loop antenna is fixed to the main body such that an axial direction of winding of the loop antenna is in parallel with the predetermined direction.

4. A battery terminal installed inside a mobile electronic device that is supplied with electric power by a secondary battery attachably and detachably installed, the battery terminal comprising:

a plurality of terminals abutting electrodes of the secondary battery installed in the mobile electronic device;

a main body holding the plurality of terminals to be urged in a predetermined direction; and

a loop antenna for performing magnetic field communication with the secondary battery installed in the mobile electronic device,

wherein the loop antenna is fixed to the main body such that an axial direction of winding of the loop antenna is in parallel with the predetermined direction.

5. The battery terminal according to claim 4, further comprising a plurality of mounting pins that has electric continuity with each of the plurality of terminals and is used for soldering with a circuit board,

wherein one of the plurality of terminals is used as a negative terminal on which a negative electrode of the secondary battery installed in the mobile electronic device abuts, and

wherein a cold end of the loop antenna is further connected to a mounting pin of the plurality of mounting pins to which the negative terminal is connected.

6. A secondary battery supplying electric power while installed in a mobile electronic device that comprises a non-contact means for extracting information that performs magnetic field communication, the secondary battery comprising:

a battery cell accumulating electric power;

a positive terminal and a negative terminal connected to the battery cell;

storage means storing information related to particularly identifying the secondary battery; and

non-contact output means capable of outputting the information stored in the storage means,

wherein the non-contact output means comprises a loop antenna for performing magnetic field communication,

wherein the positive terminal and the negative terminal are fixed to the battery cell so as to be exposed at a predetermined surface of the battery cell, and

wherein the non-contact output means and the storage means are fixed to the battery cell such that an axial direction of winding of the loop antenna is perpendicular to the predetermined surface.

7. The secondary battery according to claim 6, wherein a magnetic sheet is interposed between the non-contact output means and the battery cell.

8. The secondary battery according to claim 6 or 7, further comprising protection means that is interposed between the battery cell and the positive terminal and the negative terminal so as to protect the battery cell from an over current,

wherein the positive terminal, the negative terminal, the non-contact output means and the storage means are integrally fixed to the battery cell by resin molding.

9. The secondary battery according to claim 6 or 7, wherein the non-contact output means and the storage means are fixed to the battery cell by adhesion with a seal for detecting a water content.