WO2004054067A1

WO2004054067A1 - Charger for portable telephone

Info

Publication number: WO2004054067A1
Application number: PCT/JP2003/007957
Authority: WO
Inventors: Tokifumi Kobashikawa
Original assignee: Jet Neko Mobile Comm; Tokifumi Kobashikawa
Priority date: 2003-04-23
Filing date: 2003-06-24
Publication date: 2004-06-24
Also published as: JP3580806B1; TWI265714B; AU2003244165A1; TW200423683A; JP2004328876A

Abstract

A charger comprising a solar panel arranged on the body surface and an internal section for storing power generated by the panel. A cover is provided at one end part of the body and a light emitting diode is provided, as an illumination light, at the other end thereof. A button for lighting the light emitting diode is provided on the side face of the body. Electricity generated by the solar panel and stored in the internal power storage section charges the charger of a portable telephone under a state where the cover of the charger is opened and the connector part is connected with the portable telephone. When the lighting button is pushed, solar power can be utilized to emit light from the light emitting diode as illumination in the night (or in a dark place). In other words, the charger also serves as an illumination light. A charger for a portable telephone useful upon occurrence of a disaster is thereby provided.

Description

Mobile phone charger

TECHNICAL FIELD The present invention relates to a portable telephone connected to a mobile phone when its rechargeable battery is exhausted.

The present invention relates to a mobile phone charger for charging a rechargeable battery with electricity.

Field 1 Background Technology

Conventionally, when the rechargeable battery of a mobile phone is exhausted, it is possible to charge the mobile phone at home or the like periodically to talk. As one type of such a charger, one that charges a cell phone with electricity obtained by photovoltaic power generation provided with a solar panel is disclosed in Utility Model Registration No. 3 074 045, It has been proposed as a publication of Japanese Patent Publication No. The charger disclosed in Utility Model Registration No. 3 074 045 is connected to a mobile phone via a cord, but is difficult to carry because of the cord. Japanese Patent Laid-Open Publication No. 2001-327008 discloses a cordless type solar charger, which also uses a plug inserted into a commercial outlet, which is not suitable for carrying. Kure ,. An object of the present invention is to provide a battery charger for a mobile phone which is easy to carry and is useful even in a disaster or the like.

Disclosure of the invention

The present invention relates to a charger for a mobile phone, which is connected to the mobile phone when the rechargeable battery of the mobile phone is exhausted and charges the rechargeable battery with electricity,

With a portable body,

A solar panel for power generation provided on the body, A storage battery that is built into the body and stores the electricity generated by the solar panel; and a light emitting element for lighting that is provided at an end of the body and receives light from the storage battery in the body to emit light. ,

A lighting switch provided on the body for turning on and off the power to the light emitting element for lighting;

A connector portion formed on the body and connected to a connector portion of the mobile phone to charge a rechargeable battery of the mobile phone with electricity generated by the solar panel and stored in a power storage portion in the body; With

With the electricity generated by the solar panel and stored in the storage battery in the body, a function of charging the mobile phone through the connector unit and a function of lighting and emitting light by passing electricity to the light emitting element for lighting are provided. It has both functions and functions as a charger and a portable light.

With such a charger, it can be directly connected to the connector of the mobile phone to charge the rechargeable battery of the mobile phone with electricity, and is easy to carry. Since the charger itself is a storage battery (rechargeable battery), if it is left in sunlight or in a bright place for a while, there is no need to secure power supply or replenish dry batteries, and it is stored free of charge by solar (solar) power generation. It is desirable because it does not pollute the environment.

It is equipped with a light-emitting element for lighting, and uses the electricity generated by the solar panel and stored in the internal power storage unit to make the light-emitting element emit light, which can be used as a portable light for lighting. It can be used for work and temporary lighting in case of emergency, and is highly convenient. Its lighting function is also based on solar power storage, so there is no need to worry about the power supply, and it is very effective in times of emergency.

For example, as a disaster countermeasure, carrying the battery charger of the present invention allows a mobile phone to always be charged, even if household power becomes unavailable due to a power outage during a natural disaster such as an earthquake. Even if a normal telephone becomes unusable, this solar power is stored The use of a mobile phone can be continued by recharging with a charger, and the light-emitting elements of this charger can be illuminated by electricity stored in solar power as an emergency portable light at night (or in a dark place) in the event of a disaster. Thus, for example, searching for a mobile phone in the dark, or finding a keyhole in a door, can be used as lighting for emergency purposes, such as finding a power \ emergency evacuation route. BRIEF DESCRIPTION OF THE FIGURES

FIG. 1 is a perspective view of a charger for a mobile phone according to an embodiment of the present invention.

FIG. 2 is an explanatory diagram showing a connection state of the charger to a mobile phone.

Figure 3 is a front view of the charger.

Figure 4 is a rear view of the charger.

Figure 5 is a rear view with the cover open.

Figure 6 is a plan view of the charger.

Figure 7 is a bottom view of the charger.

Figure 8 is a left side view of the charger.

Figure 9 is a right side view of the charger.

FIG. 10 is a block diagram schematically showing a circuit configuration of the charger.

FIG. 11 is a circuit diagram showing FIG. 10 in further detail.

FIG. 12 is a circuit diagram showing a modification of FIG.

Fig. 13 is an explanatory diagram when the charger is used as a portable light.

FIG. 14 is a diagram showing a modification of the solar panel.

FIG. 15 is a front view of a charger according to another embodiment.

FIG. 16 is a circuit diagram showing an example of an internal circuit of another embodiment. BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the best mode for carrying out the present invention will be described based on an embodiment shown in the drawings.

The mobile phone charger 1 shown in FIG. 1 is a mobile phone charger that is connected to a mobile phone and charges the rechargeable battery with electricity when the rechargeable battery of the mobile phone is exhausted.

The charger 1 has a portable body 2 having a size substantially the same as a mobile phone, a solar panel 3 for solar power generation provided so as to cover almost the entire surface of the body 2, and a body 2. A storage battery 4 (see Fig. 10) that is built in the solar panel 3 and stores electricity generated by the solar panel 3, and is provided at one end of the body 2 and receives power from the storage battery 4 in the body 2 to emit light. A light-emitting element 5 for lighting (in this example, a light-emitting diode that emits white light or light close to white light by combining the light-emitting diodes of the three RGB colors (hereinafter referred to as “lighting LED”)) and a light emitting element provided on the body 2 A lighting switch (lighting button) 6 for turning on and off the power to the lighting LED 5 and a connector panel 8 (see FIG. 2) of the mobile phone 7 formed on the body 2 and connected to the solar panel In le 3 Is conductive and a connector portion 9 for charging the electricity is accumulated in the storage battery 4 in the body 2, to charge the battery of the cellular phone (not shown).

The body 2 has a vertically long rectangular shape (the corners are rounded) when viewed from the front and rear as shown in Figs. 3 to 5, and is shown in Figs. 6 to 9 As described above, the outer shell and the thickness in the cross section are flat and almost rectangular. The connector section 9 is located at the end of the body 2 on the side opposite to the illumination LED 5.

The charger 1 further includes a cover 10 that opens and closes a connector portion 9 formed at an end of the body 2 shown in FIG. 5, and a cover release button 1 as an unlock button for releasing the cover 10. And two. The cover 10 has a substantially semicircular shape and is rotatably attached to the end of the body 2. When the cover 10 is closed, the outer surface of the cover 2 and the outer surface of the body 2 continue to be designed. The connector 9 is covered with the cover 2 and protected. Cover 10 is always biased in the open direction, for example PC leak 07957

Five

For example, a predetermined spring (such as a torsion spring) for urging the cover 10 in the opening direction is provided as an elastic member at the hinge portion serving as the rotation fulcrum, or the hinge portion is formed of resin integrally with the body 2. An elastic piece portion is formed, and the cover 2 can always be urged in the open direction by providing a spring function.

Further, a lock claw 13 is provided on the body 2 as a lock member for locking the cover 10 to the closed position so as to be movable between a locked position and an unlocked position, and at the open free end of the force member 10. It is provided corresponding to the closed position. The lock claw 13 and the above-described force bar release button 12 are connected by a connecting portion (not shown), and the cover release button 12 is disposed on the side surface of the body 2 so as to be able to move by a predetermined pressing. When the cover release button 12 connected to the lock claw 13 is pressed down, the lock claw 13 moves from the locked position where the cover 10 is locked to the unlocked position where the cover 10 is not locked with the pressing operation. As a result, the cover 10 is opened. When the cover 10 is opened, the connector 9 is exposed and can be connected to the connector 8 of the mobile phone 7 shown in FIG.

As shown in FIGS. 3 to 5, the lighting button 6 and the cover release button 12 provided on the side of the body 2 have their operation contact surfaces (external surfaces) 6a and 12a on the side of the body 2.

(The outermost surface) so as not to protrude or to reduce the protruding amount, they are arranged so as to fit in the concave portions 6 b and 12 b formed on the side surface of the body 2, respectively. As shown in FIG. 5, the illumination LED 5 is arranged at the center of a hemispherical concave portion 5a formed at the center of the end face of the body 2 so as not to protrude from the end face of the body 2, and The tip of the lighting LED 5 is recessed on or almost flush with the end face of the body 2, thereby protecting the lighting LED 5.

Further, as shown in FIG. 9, a strap hook 14 is formed on a side surface of the body 2 near an end of the body 2 opposite to the cover 10. The strap hook 14 has an outer surface located almost flush with the side surface of the body 2 and is formed around it. It is formed of resin integrally with the body 2 in the form of being raised from the recess 14 b. Pass the strap (string member) 14 a between the recess 14 b and the strap hook 14, and The charger 1 can be carried by hanging it with the strap 14a. With the strap hooks 14 on the opposite side of the cover 10, the cover 10 (the connector 9 in it) is lowered in the suspended state, and the connector 9 is protected against rain etc. It will be easier.

Also, an advertisement display surface 15 for advertisement display is formed on the body surface on which the solar panel 3 is not arranged, in this example, on a surface opposite to the solar panel 3 (rear surface). I have. This advertising display surface 15 is mainly used for a person other than the manufacturer of the charger 1 (another person) to lend the advertising display surface 15 to a third party like an advertising signboard. Advertising media function. For example, it is possible to put an advertisement sticker (ABC- △△) on the advertisement display surface 15, perform predetermined printing, engrave an advertisement in the resin molding of the body 2, and display various advertisements. In this way, the charger 1 becomes a multi-layer medium.

The solar panel 3 disposed on the surface of the body 2 includes a photoelectric conversion unit 16 that converts sunlight energy into electric energy, and also serves as a power storage unit that stores electricity obtained by the photoelectric conversion unit 16. A storage battery (rechargeable battery) 4 is provided, and a circuit from the storage battery 4 to the connector section 9 and the lighting LED 5 is configured. The circuit leading from the storage battery 4 to the lighting LED 5 is provided with a lighting switch 17 for turning on / off the power supply from the rechargeable battery 4 to the lighting LED 5. When the lighting button 6 is pressed as an operation member for operating the switch 17, the illumination LED 5 emits light (lights) by the current from the storage battery 4 while the lighting button 6 is pressed. Of course, it is also possible to configure the switch 17 so that when the lighting button 6 is pressed once, the lighting state is maintained even if the pressed state is released, and the light is turned off when pressed again. P2003 / 007957 FIG. 11 is a diagram illustrating the circuit configuration inside the body 2 in more detail. A large number of photoelectric conversion elements 16a (solar batteries) are arranged on the solar panel 3 as the photoelectric conversion section 16, and the power obtained there is stored in the storage battery 4 via the backflow diode 20. You. An overcharge prevention zener diode 21 is provided in parallel with the storage battery 4 so that the voltage stored in the storage battery 4 does not excessively increase, and when the storage battery 4 is charged up to a set amount, the diode 21 is connected through the diode 21. Charge is released. The lighting switch 17 and the lighting LED 5 are incorporated in parallel with the storage battery 4 and the connector section 9.

The solar-type charger 1 as described above is always portable, and if exposed to light such as sunlight, power is naturally generated and the electricity is stored in the storage battery 4. When the mobile phone needs to be charged, pressing the cover release button 12 in Fig. 5 moves the hook claw 13 to the unlocked position, and the elasticity that the cover 10 is constantly urged The connector part 9 appears by force.

In this state, as shown in FIG. 2, when the connector section 9 is connected to the connector section 8 (insertion port) of the mobile phone 7, the electricity stored in the storage battery 4 of the charger 1 is connected to the connector. Through the unit 9, the rechargeable battery (not shown) of the mobile phone 7 is easily charged based on the potential difference between the two. Recent mobile phones consume considerable power due to various additional functions (for example, vibrator, time setting alarm, video display, digital camera, etc.), and their rechargeable batteries (depletion of battery) tend to be fast. If you carry this charger 1, you can recharge your mobile phone anytime, anywhere by solar power, even if you do not have a power source, so you can feel secure.

When the charging of the mobile phone 7 is completed, the connector section 9 of the charger 1 is pulled out of the connector section 8 of the mobile phone 7, the bar 10 is closed, and the lock 10 is locked to the closed position by the locking claw 13 in FIG. So that the connector 9 is not exposed.

Then, when you want to light at night, press the light button 6 of the charger 1 to close the switch 17 in Fig. 10 and Fig. 11 (turn on) and turn on the light LED 5. Light up. That is, as shown in FIG. 13, this charger 1 can be used as a portable light. For example, in the darkness of a sudden disaster, as an emergency light, it can be used as an emergency light, touching an evacuation route, rescuing another person, or in relation to a mobile phone, somewhere in the dark It can be used to search for mobile phones. In order to reduce the power consumed by the series resistance and increase the power used for lighting (improve the lighting effect), the stacked LED, which has LED chips connected in multiple stages, is used as the lighting LED 5. May be used.

As described above, this charger 1 has a function of charging a mobile phone through the connector section 9 by using electricity generated by the solar panel 3 and stored in the storage battery 4 in the body 2, and a lighting LED 5. It has both the function of lighting and emitting light by energizing the device, and plays the role of a charger and a portable light.

Since the lighting LED 5 uses the storage battery 4 of the charger 1 as a power source, if the voltage of the storage battery 4 falls below a predetermined lower limit value, the lighting LED 5 does not emit light as a function of a light emitting diode (including the case where the light emission becomes considerably darker). ). In other words, the lighting LED 5 does not emit light even when the lighting button 6 is pressed, but by using this, before charging the mobile phone, press the lighting button 6 to change the state in which the lighting LED 5 does not light. A warning display indicating that the power storage of unit 1 is not sufficient can be provided. In other words, it is determined that the charging of the mobile phone is inappropriate. In this case, the charger 1 is exposed to sunlight or the like to store the power, and when the lighting LED 5 is pressed by pressing the lighting button 6, the charging to the mobile phone is performed. It can be determined that charging is possible. In this case, the illumination LED (light-emitting element) 5 has a synergistic effect of performing both functions of a light source for illumination and a chargeability display unit for displaying whether or not charge is possible.

As another embodiment, the body 2 is provided with a light-emitting element for indicating whether or not charging is possible, which indicates a standard of the amount of power stored in the storage battery 4 in the body 3 by power generation by the solar panel 3. In addition, the body 2 is connected to the light emitting element P2003 / 007957

9

It is also possible to provide a charge suitability display switch for turning the power on and off. In this case, the charging suitability display switch is provided separately from the lighting switch, and the light emitting element for displaying the switch is located completely different from the light emitting element for lighting (lighting LED 5). However, as shown in the following example, the display switch can be the same switch as the illumination switch. Further, a light emitting element for indicating whether or not charging is appropriate can be provided very close to a light emitting element for illumination.

The example shown in FIG. 12 illustrates such an embodiment. The difference between the example of FIG. 12 and FIG. 11 is that, in parallel with the lighting LED 5, a charging suitability LED ED23 is provided as a light emitting element for charging suitability indication, and a series circuit from the switch 17 to the lighting LED 5 includes: As a means for stopping the energization of the lighting LED 5 when the storage battery 4 is insufficiently charged (below a predetermined value), a zener diode 24 is interposed, and the switch 17 is charged in parallel with the switch 17 through the switch 17. If the storage battery 4 is insufficiently charged (less than or equal to a predetermined value) in the circuit leading to, the charging means 23 will be energized and the LED 23 will be energized. For example, a P-type channel FET25 (Field Effect Transistor) ) Intervenes.

In other words, when the Zener diode 24 and the P-type channel FET 25 change the state of the storage battery 4 from a state higher than the threshold to a state lower than the threshold, the lighting LED 5 power and the charging appropriate LED 23 are energized. It functions as an energization switching means for switching circuits. More specifically, when the voltage applied to the gate of the FET 25 (voltage of the storage battery 4) falls below the pinch-off voltage of the FET 25, the FET 25 is turned on.

In this example, if the voltage of the storage battery 4 in the charger 1 is equal to or higher than the threshold value, the switch 17 is closed by the lighting button 6, and the illumination LED 5 emits light via the zener diode 24 and is used for illumination. I can do it. On the other hand, when the voltage of the storage battery 4 falls below the threshold, even if the switch 14 is closed, the illumination L 07957

Ten

When the power supply to the ED 5 is stopped and the light is turned off, and the P-type channel F ET 25 is conducted, the current from the switch 17 flows to the charge appropriateness LED 23 to emit light. In this case, the user is notified (warned) that charging the mobile phone is difficult (unsuitable). When the above-mentioned stacked LED is used for the illumination LED 5, the light emitting operation voltage can be increased, and therefore, the LED 5 itself also functions as the above-described zener diode 24, and the zener diode 24 is used. 24 can be omitted.

Here, the charging appropriateness LED 23 has a standard whose emission voltage (forward voltage) is lower than that of the lighting LED 5, and if the lighting LED 5 is, for example, a white type, the charging appropriateness LED 23 is, for example, red. The system is selected. The difference in the LED emission colors between the lighting and the charge indication indicates the meaning of the warning indication. In addition, next to the lighting LED 5, for example, a charging suitability LED 23 is provided so as to fit into the recess 5a in FIG. 5, and the two LEDs 5, 23 can be assembled at one place. Conversely, the chargeability LED 23 may be provided, for example, on the back surface of the body 2 or the like, and may be completely independent of the lighting LED 5.

The switch 17 is a common switch between the switch for turning on the lighting LED 5 and the switch for turning on the charging suitability LED 23.When the lighting button 6 on the body 2 is pressed, the common switch is pressed. The switch is closed, and either the lighting of the lighting LED 5 or the lighting of the charging suitability LED 23 is obtained. Therefore, the switch and its operation buttons are required to be minimum (one by one), the circuit configuration is simplified, the switch configuration appearing on the outer surface of the body 2 is simplified, the degree of design freedom is increased, and the appearance is improved. Be smart. Here, the zener diode 24 can be simply omitted from FIG. 12, in which case, the charging LED 23 can be set to light red, for example, while the illumination LED 5 is weakly lit. It becomes. P2003 / 007957

1 1

As shown in Fig. 14, the light input surface of the solar panel 3 'is a concave and convex surface (a triangular saw-shaped cross section or a convex lens shape) in which a slope that is inclined with respect to a vertical line perpendicular to the plate surface is repeated. Etc.) It can be set to 31. In this way, light with different incident angles can be easily taken in, and the efficiency of solar power generation can be increased. In this case, the uneven surface 30 of the solar panel 3 ′ can be covered with a flat (smooth surface) translucent plate 32. -In another embodiment, as shown in FIG. 15, the solar charger 1 of the present invention is charged from a second power source other than the solar panel 3 (for example, a commercial power source for home use). As possible, a charger 40 provided with a second charging connector section 31 may be provided. In this charger 40, the connector (connection terminal) 36 of the second charging means (charging cord) 37 is inserted into the connector part 30, and an outlet provided on the cord 31. 34 is connected to, for example, a commercial power supply and, if necessary, from a commercial power supply or the like via a voltage conversion means such as an AC adapter 33 or the like, the charging section (storage battery) of the charger 40 4 (see FIG. 16 etc.) In addition, it can be charged separately from solar power generation. The charging connector section 30 can be formed, for example, on the side surface of the charger and other appropriate portions as shown in FIG. In this way, the mobile phone can be charged without any trouble even when the sunshine is poor or the solar power generation by the charger 40 is not sufficient at night or the like. In addition, while the charger 40 is being charged by the second charging means using commercial power or the like, the mobile phone can be charged by connecting the mobile phone to the charger 40. Noh.

As an internal circuit, for example, as shown in FIG. 16, a connector portion 30 is formed between a solar panel 3 (solar battery) and a rechargeable battery 4, and a diode 21 is formed from a storage battery 4 to a solar panel 3. Current from the connector part 30 and the solar panel 3 side. Also, the diode 35 prevents reverse current from flowing from the connector section 30 to the commercial power supply side.

Claims

The scope of the claims

1. A charger for a mobile phone, which is connected to the mobile phone to charge the battery when the battery of the mobile phone is exhausted,

With a portable body,

A solar panel for solar power generation provided in the pod,

A power storage unit that is built into the body and stores the electricity generated by the solar panel; and a light emitting element for illumination that is provided at an end of the body and receives light from the power storage unit in the body and emits light. When,

An illumination switch provided on the body to turn on / off the power to the light emitting element for illumination;

A connector portion formed on the body and connected to a connector portion of the mobile phone to charge a rechargeable battery of the mobile phone with electricity generated by the solar panel and stored in the power storage portion in the body. With

With the electricity generated by the solar panel and stored in the power storage unit in the body, a charging function for the mobile phone through the connector unit and an illumination light emitting function by passing electricity to the light emitting element for illumination are provided. A battery charger for a mobile phone, having both of the above functions and serving as a charger and a portable light.

2. The body is provided with a light-emitting element for indicating whether or not charging is possible, which indicates a measure of the amount of power stored in the power storage unit in the body by power generation by the solar panel. 2. The battery charger for a mobile phone according to claim 1, further comprising a charge suitability display switch for turning on / off the power supply to the suitability display light emitting element.

3. The light-emitting element for lighting is a light-emitting diode, and a light-emitting diode for charge suitability display having a light emission voltage lower than that of the light-emitting diode for lighting is provided on the body as the light-emitting element for charge suitability display. Also, turn on the power to the light emitting diode for lighting. 3. The battery charger for a mobile phone according to claim 2, wherein the switch to be turned on and off is also a common switch, and the switch for turning on and off the light emitting diode for displaying the charge appropriateness is also used as the charge appropriateness display switch. .

4. A cover for opening and closing the connector portion formed at the end of the body is rotatably attached to the end of the body, and the outer surface of the force bar when the cover is closed. And the connector portion is covered with a force bar when the body and the outer surface of the body are connected, and in a state where the cover is opened, the connector portion is exposed and can be connected to the connector portion of the mobile phone. 3. The charger for a mobile phone according to any one of Items 1 to 3.

5. The cover is urged in the opening direction, and a lock member for locking the cover in the closed position is provided on the body so as to be movable between a locked position and an unlocked position. A lock release button connected to a lock member is disposed so as to be able to be pressed and moved, and the cover is opened by moving the lock member from a lock position to a non-lock position in accordance with the press operation of the button. 4. The charger for a mobile phone according to item 4.

6. The mobile phone according to any one of claims 1 to 5, wherein an advertisement display surface for displaying an advertisement is formed on a side of the body where the solar panel is not disposed. Charger.

7. The body according to claim 1, wherein the body is provided with a connector for connecting a second charging means for storing power in the storage battery separately from the solar power generation.

7. The charger for a mobile phone according to any one of paragraphs 6.