JP2010109778A - Portable terminal charging apparatus, portable terminal and charging head - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a portable terminal charging apparatus capable of holding stable contact between a portable terminal and a charging head during charging, and enabling a user to easily talk while continuing the charging when the portable terminal is called during the charging. <P>SOLUTION: The portable terminal charging apparatus 100 includes a portable terminal 102, a charging head 104 for supplying charging power to the portable terminal 102 in contact with the portable terminal 102 and a winding reel 108 for winding up a power supply cable 106 extended from the charging head 104, and winding off the power supply cable 106 when the wound power supply cable 106 is pulled out. The portable terminal 102 includes a terminal side charging terminal 110 and an electromagnetic coil 112 connecting to the terminal side charging terminal 110 and acting as an electromagnet when a charging current is allowed to flow. The charging head 104 includes a charging head side charging terminal 114 connected to the terminal side charging terminal 110 and an iron-made joint part 116 for magnetically joining the electromagnetic coil 112 acting as the electromagnet. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a portable terminal charging device for charging a portable terminal.

  When a portable terminal is fixed to the charger, conventionally, the portable terminal is fixed with a mechanical configuration by hooking the portable terminal on a hook or the like provided in the charger (for example, Patent Document 1).

Patent Document 2 discloses a mobile phone having a long power cable so that a call can be performed while charging.
JP 2008-252534 A JP-A-10-28152

  However, in the mechanical configuration as in Patent Document 1, when removing the portable terminal from the charger, it is necessary to lift the portable terminal from the charger while holding the charger so as not to move, and it is troublesome to remove the hook. It is complicated.

  On the other hand, in the case of the technique as in Patent Document 2, a call can be made while charging, but since a long power cable is always connected to the mobile phone, the power cable feels in the way during a call.

  In view of such a problem, the present invention maintains a stable contact between the mobile terminal and the charging unit during charging, but does not remove the mobile terminal from the charging unit when receiving an incoming call to the mobile terminal during charging. An object of the present invention is to provide a portable terminal charging device, a portable terminal, and a charging head that can be easily talked while continuing charging.

  In order to solve the above problems, a representative configuration of a mobile terminal charging device according to the present invention includes a mobile terminal, a charging head that contacts the mobile terminal and supplies power for charging to the mobile terminal, and a charging head. A portable reel is connected to the terminal side charging terminal and the terminal side charging terminal, and is charged by winding the extended power cable and winding the reel to unwind the power cable when the wound power cable is pulled. An electromagnetic coil that becomes an electromagnet when an electric current flows, and the charging head has a charging head side charging terminal connected to the terminal side charging terminal, and an iron joint that magnetically bonds with the electromagnetic coil that became an electromagnet It is characterized by having.

  According to the above configuration, since the electromagnet magnetically joins the portable terminal and the charging head during charging, stable contact between the two is maintained. When the mobile terminal receives an incoming call during charging, the take-up reel unwinds the power cable by pulling the mobile terminal together with the magnetically bonded charging head. As a result, the mobile terminal can be drawn to the speaker's ear, and a call can be easily made while charging continues.

  In order to solve the above problems, another representative configuration of the mobile terminal charging device according to the present invention includes a mobile terminal, a charging head that contacts the mobile terminal and supplies power for charging to the mobile terminal, A take-up reel that unwinds the power cable extending from the head and that unwinds the power cable when the wound power cable is pulled; and the charging head is connected to the charging head side charging terminal and the charging head side charging terminal. And an electromagnetic coil that becomes an electromagnet when a charging current flows, and the mobile terminal is made of iron that is magnetically bonded to the terminal-side charging terminal that contacts the charging head-side charging terminal and the electromagnetic coil that becomes the electromagnet And a joint portion.

  The portable terminal charging device further includes a holder for fixing the take-up reel, and the holder fixes the charging head in a predetermined position when the take-up reel winds up the power cable, and holds the portable terminal in a certain posture. The terminal-side charging terminal and the charging head-side charging terminal of the fixed charging head are preferably brought into contact with each other.

  According to said structure, by supporting a portable terminal with a fixed attitude | position by a holder, it becomes easy to align a portable terminal with a charging head and to make both contact appropriately.

  Said charge head side charge terminal may serve as said junction part. This is because if the charging terminal on the charging head side is made of iron, it can be magnetically bonded to the electromagnetic coil that has become an electromagnet on the portable terminal side, and there is no need to prepare a separate joint.

  Said terminal side charge terminal may serve as said junction part. This is because if the terminal side charging terminal is made of iron, it can be magnetically bonded to the electromagnetic coil that becomes an electromagnet on the charging head side, and there is no need to prepare a separate joint.

  The mobile terminal further includes a charge amount detection unit that detects a charge amount of the mobile terminal, and a charge control unit that stops charging current to the electromagnetic coil when the charge amount detection unit detects that the charge amount detection unit is fully charged. You may have.

  According to the above configuration, when the battery is fully charged, the magnetic bonding is automatically released, and only the mobile terminal can be taken up.

  The mobile terminal may further include an incoming call detection unit that detects an incoming call to the mobile terminal, and a charge control unit that stops a charging current to the electromagnetic coil when the incoming call is detected.

  According to the above configuration, when the incoming call is received, the magnetic bonding is automatically released, and only the mobile terminal can be picked up to make a call.

  The portable terminal may further include an operation unit for stopping the charging current to the electromagnetic coil. With this configuration, the portable terminal and the charging head are stopped from charging while maintaining contact, and both can be freely detached.

  Said holder may have an operation part for stopping the charging current to an electromagnetic coil. Even with this configuration, the portable terminal and the charging head are stopped from charging while maintaining contact, and both can be freely detached.

  In order to solve the above problems, a typical configuration of a mobile terminal according to the present invention includes a terminal-side charging terminal and an electromagnetic coil that is connected to the terminal-side charging terminal and becomes an electromagnet when a charging current flows. It is characterized by that.

  In order to solve the above problems, a typical configuration of the charging head according to the present invention is a charging head side charging terminal that comes into contact with the terminal side charging terminal provided in the mobile terminal, and an electromagnet provided in the mobile terminal. And an iron joint that is magnetically joined to the electromagnetic coil.

  According to the present invention, it is possible to keep a stable contact between the portable terminal and the charging head for charging during charging, and it is possible to easily remove the portable terminal from the charging head after the charging is completed. In addition, even when an incoming call arrives at the mobile terminal during charging, it is possible to easily make a call while continuing charging.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. The dimensions, materials, and other specific numerical values shown in the embodiments are merely examples for facilitating understanding of the invention, and do not limit the present invention unless otherwise specified. In the present specification and drawings, elements having substantially the same function and configuration are denoted by the same reference numerals, and redundant description is omitted, and elements not directly related to the present invention are not illustrated. To do.

(First embodiment)
FIG. 1 is a diagram showing a first embodiment of a portable terminal charging device according to the present invention. The mobile terminal charging device 100 winds up and winds a mobile terminal 102, a charging head 104 that contacts the mobile terminal 102 and supplies power for charging to the mobile terminal 102, and a power cable 106 extending from the charging head 104. A take-up reel that unwinds the power cable when the taken power cable is pulled;

  The take-up reel 108 is located between the charging head 104 and the AC adapter 111 connected to the commercial power source 109. The take-up reel 108 used in this embodiment is expanded and contracted by winding the power cable 106, but any means may be used as long as the power cable 106 can be expanded and contracted.

  The take-up reel 108 winds up the entire power cable 106 from the take-up reel 108 to the charge head 104 when the charge head 104 is not connected to the portable terminal 102 and is free. This prevents the power cable 106 from unnecessarily extending and obstructing except during charging.

  In the present embodiment, a mobile phone is cited as the mobile terminal 102. However, the present invention is not limited to such a case. A PDA (Personal Digital Assistant) having a PHS terminal, a wireless communication function, a digital camera, a music player, a car navigation system, a portable TV, Various portable electronic devices such as game devices, DVD players, and remote controllers can be used as the mobile terminal 102.

  When charging the portable terminal 102, first, as shown in FIG. 1A, the charging head 104 is connected to the portable terminal 102, and the AC adapter 111 is connected to the commercial power source 109 as shown in FIG. .

  FIG. 2 is a schematic diagram illustrating an example of a contact portion between the mobile terminal 102 and the charging head 104 in FIG. 1. The mobile terminal 102 includes a terminal-side charging terminal 110 and an electromagnetic coil 112 that is connected to the terminal-side charging terminal 110 and becomes an electromagnet when a charging current flows. The charging head 104 is connected to the terminal-side charging terminal 110. The charging head side charging terminal 114 to be connected and an iron joint 116 that is magnetically joined to the electromagnetic coil 112 that is an electromagnet.

  The electromagnetic coil 112 uses a current flowing through a coil wound around an iron core and uses the iron core as a magnet, and utilizes the fact that magnetism is generated when a current flows through the coil.

  According to the above configuration, during charging, since the electromagnet (electromagnetic coil 112) is magnetically bonded to the bonding portion 116, the mobile terminal 102 and the charging head 104 are magnetically bonded. Is preserved. When an incoming call is received at the mobile terminal 102 during charging, the take-up reel 108 is pulled by pulling the mobile terminal 102 together with the magnetically bonded charging head 104 as shown in FIG. Unwind the power cable 106. As a result, the mobile terminal 102 can be drawn to the speaker's ear, and a call can be easily made while charging continues.

  In the present embodiment, the electromagnetic coil is provided on the portable terminal 102 side, but conversely, the electromagnetic coil may be provided on the charging head 104 side and the joint 116 may be provided on the portable terminal 102 side. Such a reversed configuration is possible not only for this embodiment but also for all embodiments.

  Further, it is desirable that the iron joint 116 be made of soft iron that has a property as a magnet only when magnetized by an external magnetic field.

(Second Embodiment)
FIG. 3 is a diagram showing a second embodiment of the portable terminal charging device according to the present invention. The difference from the mobile terminal charging apparatus 100 according to the first embodiment is that the mobile terminal charging apparatus 200 further includes a holder 118 for fixing the take-up reel 108 described above. The take-up reel 108 is embedded and fixed inside the holder 118.

  When the take-up reel 108 winds up the power cable 106, the holder 118 fixes the charging head 104 at a predetermined position as shown in FIG. Therefore, as shown in FIG. 3B, the terminal-side charging terminal 110 and the charging head-side charging terminal 114 of the fixed charging head 104 are brought into contact with each other while the mobile terminal 102 is supported in a certain posture.

  According to the above configuration, as shown in FIG. 3B, the portable terminal 102 is supported by the holder 118 in a fixed posture, so that the portable terminal 102 is aligned with the charging head 104 and both are properly brought into contact with each other. It becomes easy.

  Similarly to the first embodiment, when the mobile terminal 102 and the charging head 104 are kept in stable contact during charging and the mobile terminal 102 receives an incoming call during charging, FIG. ), The portable terminal 102 can be pulled to the speaker's ear by pulling the portable terminal 102 together with the charging head 104, and a call can be easily made while charging continues.

  The holder 118 may be sufficiently heavy so that it does not move even when the portable terminal 102 is pulled together with the charging head 104. The power cable 106 unwound from the take-up reel 108 embedded in the holder 118 extends to the portable terminal 102 through a hole 119 provided in the holder 118.

  Note that the contact portion between the mobile terminal 102 and the charging head 104 in FIG. 3 may be the same as in FIG.

(Charging head side charging terminal)
FIG. 4 is a schematic diagram showing another example of a contact portion between the mobile terminal 102 and the charging head 104, which is different from FIG. 2 and can be applied to both the first and second embodiments.

  In the case of FIG. 4, the charging head side charging terminal 115 is made of iron, and is magnetically bonded to the electromagnetic coil 112 serving as an electromagnet instead of the bonding portion 116 of FIG. 2. That is, the charging head side charging terminal 115 also serves as a joint with the portable terminal 102. If the charging head side charging terminal 115 is made of iron, it can be magnetically bonded to the electromagnetic coil 112 that has become an electromagnet on the portable terminal 102 side, and it is not necessary to prepare the bonding portion 116 separately, and the manufacturing cost can be reduced. In FIG. 4, two electromagnetic coils 112 are provided, but only one of them may be provided.

(Charge stop due to full charge)
FIG. 5 is a block diagram of the mobile terminal 102 of FIGS. As shown in FIG. 5, when the mobile terminal 102 further detects a charge amount detection unit 120 that detects the charge amount of the mobile terminal 102 and the charge amount detection unit 120 is fully charged, the mobile terminal 102 charges the electromagnetic coil 112. And a charge control unit 122 for stopping the current. The charge amount detection unit 120 detects the charge amount from the charging circuit 142 that charges the battery 121.

  According to the above configuration, when the battery is fully charged, the magnetic bonding is automatically released, and only the mobile terminal 102 can be detached from the charging head 104 and taken up. Since only the mobile terminal 102 needs to be lifted during a call or the like, the user can make a call or the like more easily.

(Charge stop by incoming call)
As illustrated in FIG. 5, the mobile terminal 102 further includes an incoming call detection unit 124 that detects an incoming call to the mobile terminal 102. When the incoming call detection unit 124 detects an incoming call, the charging control unit 122 stops the charging current to the electromagnetic coil 112 via the charging circuit 142.

  According to the above configuration, when the incoming call is received, the magnetic bonding is automatically released, and only the mobile terminal 102 can be picked up to make a call. Also in this case, since only the mobile terminal 102 needs to be lifted during a call or the like, the user can make a call or the like more easily.

  In addition, when the charging control unit 122 stops charging due to an incoming call, the charging is temporarily suspended, but if the user does not answer the phone because the user is not nearby, etc., after a certain period of time after the incoming call stops, The charging control unit 122 may resume charging. In addition, even when a call is executed, it goes without saying that the charging control unit 122 can resume charging by bringing the mobile terminal 102 into contact with the charging head 104 again.

  As shown in FIG. 5, the mobile terminal 102 further includes a terminal control unit 130, a memory 132, a display unit 134, a voice input unit 136, a voice output unit 138, and a wireless communication unit 140. Composed.

  The terminal control unit 130 manages and controls the entire portable terminal 102 by a semiconductor integrated circuit including a central processing unit (CPU), and uses a program in the memory 132 to make a call function, a mail transmission / reception function, an imaging function, a music playback function, Also performs TV viewing function. The memory 132 includes a ROM, a RAM, an EEPROM, a nonvolatile RAM, a flash memory, an HDD, and the like, and stores a program processed by the terminal control unit 130.

  The display unit 134 is configured by a liquid crystal display, an EL (Electro Luminescence) display, or the like, and is stored in the memory 132 or provided from a server (not shown) via the communication network 160, and is a GUI for Web contents and applications. (Graphical User Interface) can be displayed.

  The voice input unit 136 includes voice conversion means such as a microphone, and converts a user voice input during a call into an electrical signal that can be processed in the mobile terminal 102. The audio output unit 138 is configured with a speaker, and converts the voice signal of the other party received by the mobile terminal 102 into voice and outputs the voice. The voice output unit 138 can also output a ring tone, an operation sound of the operation unit 126, an alarm sound, and the like.

  For example, the wireless communication unit 140 establishes wireless communication with the base station 150 through a network such as CDMA (Code Division Multiple Access) or WiMAX (Worldwide Interoperability for Microwave Access), and performs voice communication or an application server ( Data communication is performed with an unillustrated).

(Operation unit for stopping charging: When installed on a mobile device)
FIG. 6 is an external view showing an example of the mobile terminal of FIG. As shown in FIGS. 5 and 6, the mobile terminal 102 further includes an operation unit 126 for stopping the charging current to the electromagnetic coil 112.

  The operation unit 126 includes switches such as a keyboard, a cross key, a joystick, and a touch panel, and receives a user operation input. Among these, a function of stopping the charging current to the electromagnetic coil 112 may be assigned to any part. The portable terminal 102 can be detached from the charging head 104 only while a predetermined part of the operation unit 126 is pressed.

  With this configuration, the portable terminal 102 and the charging head 104 are stopped from charging while maintaining contact, and both can be freely detached.

  FIG. 7 is a flowchart illustrating an operation example when the operation unit 126 provided in the mobile terminal 102 of FIGS. 5 and 6 is operated. As shown in FIG. 7, when the operation unit 126 is operated after charging is started (step S <b> 210), if the mobile terminal 102 is charged with the power on (YES in step S <b> 220), the operation unit 126 is operated. Charging is stopped only in the middle (step S230). Therefore, the portable terminal 102 can be detached from the charging head 104 only during operation of the operation unit 126 (step S240).

  On the other hand, when the mobile terminal 102 is charged with the power OFF (NO in step S220), the charging is stopped after the power is turned ON (step S250). Thereafter, the process proceeds to step S240, and the portable terminal 102 can be detached from the charging head 104 only during operation of the operation unit 126.

(Operation unit for stopping charging: When installed on the holder)
When the holder 118 is present as in the second embodiment, instead of the above-described operation unit 126 provided in the mobile terminal 102, as shown in FIG. 128 may be provided. In this case, by pressing the operation unit 128 shown in FIG. 3, the power supply to the power cable 106 is cut off and the charging is stopped (the connection relationship is not shown). Even with this configuration, the portable terminal 102 and the charging head 104 are stopped from charging while maintaining contact, and both can be freely detached.

  As mentioned above, although preferred embodiment of this invention was described referring an accompanying drawing, it cannot be overemphasized that this invention is not limited to the example which concerns. It will be apparent to those skilled in the art that various changes and modifications can be made within the scope of the claims, and these are naturally within the technical scope of the present invention. Understood.

  INDUSTRIAL APPLICABILITY The present invention can be used for a mobile terminal charging device, a mobile terminal, and a charging head that charge the mobile terminal.

It is a figure which shows 1st Embodiment of the portable terminal charging device concerning this invention. It is a schematic diagram which shows an example of the contact part of the portable terminal and charging head of FIG. It is a figure which shows 2nd Embodiment of the portable terminal charging device concerning this invention. It is a schematic diagram which shows the other example of the contact part of a portable terminal and charging head different from FIG. It is a block diagram of the portable terminal of FIG. 1 and FIG. It is an external view which shows an example of the portable terminal of FIG. It is a flowchart which shows the operation example at the time of operating the operation part provided in the portable terminal of FIG. 5 and FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100, 200 ... Portable terminal charging device 102 ... Portable terminal 104 ... Charging head 106 ... Power supply cable 108 ... Winding reel 110 ... Terminal side charging terminal 112 ... Electromagnetic coil 114, 115 ... Charging head side charging terminal 116 ... Joint part 118 ... Holder 120 ... Charge amount detection unit 122 ... Charge control unit 124 ... Incoming call detection unit 126, 128 ... Operation unit

Claims (11)

A mobile device,
A charging head that contacts the mobile terminal and supplies charging power to the mobile terminal;
Winding a power cable extending from the charging head, and winding the reel to unwind the power cable when the wound power cable is pulled;
With
The portable terminal is
A terminal-side charging terminal;
An electromagnetic coil that is connected to the terminal-side charging terminal and becomes an electromagnet when a charging current flows;
Have
The charging head is
A charging head side charging terminal in contact with the terminal side charging terminal;
An iron joint that is magnetically joined to the electromagnetic coil that has become an electromagnet;
The portable terminal charging device characterized by having. A mobile device,
A charging head that contacts the mobile terminal and supplies charging power to the mobile terminal;
Winding a power cable extending from the charging head, and winding the reel to unwind the power cable when the wound power cable is pulled;
With
The charging head is
A charging head side charging terminal;
An electromagnetic coil that is connected to the charging head side charging terminal and becomes an electromagnet when a charging current flows;
Have
The portable terminal is
A terminal-side charging terminal that contacts the charging head-side charging terminal;
An iron joint that is magnetically joined to the electromagnetic coil that has become an electromagnet;
A portable terminal charging device comprising: A holder for fixing the take-up reel;
When the take-up reel winds up the power cable, the holder fixes the charging head in a predetermined position and supports the portable terminal in a fixed posture, while fixing the terminal-side charging terminal and the fixing The portable terminal charging device according to claim 1, wherein the charging head side charging terminal of the charging head is brought into contact with the charging terminal.   The portable terminal charging device according to claim 1, wherein the charging head side charging terminal also serves as the joint.   The portable terminal charging device according to claim 2, wherein the terminal-side charging terminal also serves as the joint. The portable terminal further includes
A charge amount detection unit for detecting the charge amount of the mobile terminal;
When detecting that the charge amount detector is fully charged, a charge controller that stops the charging current to the electromagnetic coil;
The mobile terminal charging device according to claim 1, wherein the mobile terminal charging device is provided. The portable terminal further includes
An incoming call detection unit for detecting an incoming call to the mobile terminal;
When the incoming call is detected, a charging control unit that stops the charging current to the electromagnetic coil;
The mobile terminal charging device according to claim 1, wherein the mobile terminal charging device is provided.   The portable terminal charging apparatus according to claim 1, further comprising an operation unit for stopping a charging current to the electromagnetic coil.   The portable terminal charging device according to claim 3, wherein the holder has an operation unit for stopping a charging current to the electromagnetic coil. A terminal-side charging terminal;
An electromagnetic coil that is connected to the terminal-side charging terminal and becomes an electromagnet when a charging current flows;
A portable terminal comprising: A charging head side charging terminal in contact with the terminal side charging terminal provided in the mobile terminal;
An iron joint that is magnetically bonded to an electromagnetic coil that is provided in the mobile terminal and serves as an electromagnet;
A charging head comprising:

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