JP3091637U - Auxiliary charger for mobile phone - Google Patents

Abstract

(57) [Problem] To provide an auxiliary charger for a mobile phone that can be used as a standby power supply that can be easily charged if there is a light source such as the sun or an incandescent lamp or a fluorescent lamp anytime and anywhere. An auxiliary charger for a mobile phone including a solar cell configured to be detachably connected to the mobile phone.

Description

[Detailed description of the device]

[0001]

[Technical field to which the device belongs]

  The present invention relates to an auxiliary battery charger for a mobile phone, particularly in an emergency or Is used effectively when it is necessary to maintain a lifeline in the event of a disaster It is about the auxiliary charger for mobile phones that can do things.

[0002]

[Prior art]

  At present, the spread of mobile phones has reached the level of about 30 million units for young people nationwide. It has become popular, and it is not only for business people but also for the elderly and most of the middle and high school youth. Chidoma holds it, and it is not uncommon for a family to own a few cars.

[0003]   However, most of the charging of the rechargeable battery built in the above-mentioned mobile phone is at home or Is at work, and the charging cord and A / C adapter taken from a general power source are Except for the long-term trip, each mobile phone user generally It is a normal life mode that is not done.

[0004]

[Problems to be solved by the device]

  By the way, in the above-mentioned mobile phone user's life mode, in the unlikely event of charging the battery Is lost in the middle of a call, information transmission / reception, calling operation, etc. Until now, I have used a charger with a charging cord placed at home or at the office where I work. The mobile phone is useless unless it is used and charged.

[0005]   Of course, at NTT Docomo, J-Phone, au etc. Go to a supermarket, convenience store, etc., and in some cases charge for charging There must be.

[0006]   As a charging tool for such an emergency, a light source containing about two manganese batteries There are a large number of chargers in the form of commercial products on the market.

[0007]   But what emergency plug-in simple charger (external connection terminal on the bottom of the mobile phone Part that can be inserted into the socket or socket) It is a battery, is a disposable type, and the mobile phone itself displays Due to the large size and color of the screen 11, the power consumption increases, and the simple charger Even if you use, the battery will run out without holding for a long time, and a new primary battery Must be replenished.

[0008]   Even if the user owns the above simple charger, do not use it for a long time. And the battery spontaneously discharges, each of which requires a small amount of battery energy -Only the mobile phone can be replenished to the mobile phone side, so such an emergency of the primary battery It is the user's voice who feels uneasy about bequesting the power supply for power.

[0009]   Similarly, place the cell phone in a place where electricity is not available and a normal charger cannot be used. Stay in a remote place where you do not even have a place to stay for a period of time or purchase the above-mentioned simple charger. If you stay for a period of time, or if an earthquake, typhoon, or other disaster, or a terrorist incident occurs, When power lines in urban areas are destroyed due to disasters, or accidents occur in the mountains or at sea In such a case, the mobile phone will function as an emergency lifeline. However, it is most effective when the electric energy of the rechargeable battery of the mobile phone is exhausted. Early on, it would not be able to function as an emergency lifeline.

[0010]   The purpose of the present invention is to solve the above-mentioned problems in the past and to provide anytime, anywhere If you have a light source such as the sun, incandescent lamp, or fluorescent lamp, you can easily carry out a charging operation. It can be used as a power source and can exert its power when the battery runs out in an emergency The present invention provides an inexpensive and lightweight auxiliary charger for mobile phones that is portable.

[0011]

[Means for Solving the Problems]

  The present invention basically adopts the following technical configuration in order to achieve the above object. To do.

[0012]   That is, the auxiliary charger for the mobile phone according to the present invention can be detachably connected to the mobile phone. It is an auxiliary battery charger for mobile phones that includes a solar cell configured to be functional.

[0013]

[Embodiment of device]

  The auxiliary charger for a mobile phone according to the present invention has the basic technical configuration as described above. Since it is adopted, it is flat and has a size such as a notebook or business card or a telephone car. The same size as a credit card or a credit card, or equal to a pocket size, or Since the shape or size is similar to that of the sun A supplementary battery charger for a mobile phone, the user of the mobile phone Put the auxiliary charger in your clothes pocket or outside pocket such as a bag, and carry it. It can be taken out and used at any time, and the electric energy of the rechargeable battery of the mobile phone concerned can be used. When the energy disappears, attach the auxiliary charger of the present invention to the outside of the mobile phone. Insert it into the connection terminal and irradiate the solar cell part of the auxiliary charger with light. This allows the rechargeable battery of the mobile phone to be charged, so in an emergency Alternatively, it can be effectively used to maintain the lifeline in the event of a disaster. .

[0014]

【Example】

  Hereinafter, the auxiliary charger for a mobile phone according to the present invention will be described in detail.

[0015]   That is, FIG. 1A shows the structure of a specific example of the auxiliary charger 1 for a mobile phone according to the present invention. FIG. 1 (B) is a front view showing the structure, and FIG. 1 (B) is an auxiliary charging for a mobile phone according to the present invention. It is a side view which shows the structure of a specific example of the container 1.

[0016]   In FIG. 1, a solar cell 2 configured to be detachably connectable to an appropriate mobile phone 10 is shown. An auxiliary charger 1 for a mobile phone including the same is shown.

[0017]   Further, in FIG. 1, the auxiliary charger 1 is formed in a thin flat plate shape. preferable.

[0018]   Further, in the present invention, the structure of the solar cell 2 is not particularly limited. It is possible to use the well-known solar cell 2, but it is preferable to use a silicon-based solar cell. It is preferable to use the battery 2.

[0019]   The silicon-based solar cell in the present invention is made of single crystal silicon or polycrystalline silicon. It is desirable that it is composed of It is also desirable to use positive batteries.

[0020]   Further, in the present invention, as a result of earnest study by the present inventors, 103 mm × 10 In a solar cell using flat plate-shaped single crystal silicon having a size of 3 mm, 1.6 The output of Watts was obtained and the conversion efficiency was 16%, but with the same dimensions as above. Output power of 1.3 Watts in a solar cell using flat plate polycrystalline silicon Was obtained, and the conversion efficiency was 13%.

[0021]   On the other hand, in the case of a solar cell that uses a plate-shaped amorphous material with the same dimensions as above , 0.6 Watts was obtained and the conversion efficiency was 6%.

[0022]   Judging from the above experimental results, the material for solar cells is single crystal silicon. , The cost decreases in the order of polycrystalline silicon and amorphous, and at the same time the conversion efficiency Since it can be understood that it will decrease, the necessity and sales as an auxiliary charger for the mobile phone concerned Which silicon should be adopted as the solar cell taking into consideration the selling price, etc. Should be decided.

[0023]   The specific configuration of the solar cell 2 in the present invention is not particularly limited. Although not shown, for example, as shown in FIG. 3, 15 solar battery unit cells 20 Are arranged in an array on a flat plate, and the cathodes of adjacent solar cells are 22 and the positive electrode 21 are connected by an appropriate wiring means, and the plurality of solar cell units are connected. Cell 20 is configured to be connected in series.

[0024]   On the other hand, the auxiliary charger 1 for a mobile phone according to the present invention is used in The main body of the solar cell 2 is composed of a flat plate having a thickness as thin as possible. It is desirable that the size, that is, the size, be, for example, a notebook, business card, or credit card. Size that is the same as or close to the size of a Jit card or telephone card, etc. Is preferably formed.

[0025]   To manufacture the solar cell 2 used in the auxiliary charger 1 of the present invention, for example, Cut a flat or flat panel solar cell into the solar cell Cutting using a pre-configured cutting device for the purpose, shape and size of the above size And then separate each separated individual solar cell 2 into plastic. Made by using a cover or case 8 made of aluminum, and the light receiving surface of the solar cell 2 is exposed to the outside. It is configured to be exposed.

[0026]   In the present invention, the flat solar cell is composed of a single flat plate. Alternatively, a plurality of flat plates composed of a plurality of the solar cells may be arranged adjacent to each other. It is also possible to arrange it so that its connecting portion is formed to be foldable. .

[0027]   In this way, by constructing the solar cell in a folded shape, , Can be compactly packed into a pocket size, but when charging towards the sun Since it is possible to increase the substantial surface area of the solar cell, the amount of power generation can be increased. It is possible to increase the width.

[0028]   On the other hand, in the mobile phone auxiliary charger 1 according to the present invention, the auxiliary charging is performed. The container 1 is provided with the connection portion 3 with which the external connection terminal portion 13 of the mobile phone 10 is engaged. It is preferable that the output from the solar cell 2 is output to the inside of the connection part 3. Current, that is, electric energy, is supplied to the charging battery 12 of the mobile phone 10. It is necessary to have an appropriate current or voltage control circuit 9 for charging. Is.

[0029]   Further, the connection portion 3 provided in the auxiliary charger 1 of the present invention is Provided with the connector portion 4 that fits into the external connection terminal portion 13 of the mobile phone 10. Is also necessary.

[0030]   There are various types of mobile phones 10 used in the present invention. The shapes of the external connection terminal portions 13 in the band telephone 10 are different from each other.

[0031]   Therefore, in the present invention, the shape of the connector portion 4 provided on the connection portion 3 is It is preferable to set the shape suitable for the external connection terminal portion 13 of each mobile phone 10. Good

[0032]   Therefore, in one embodiment of the present invention, that of a mobile phone 10 formed in a different format. A plurality of types of auxiliary chargers 1 each having a connector portion 4 adapted to each external connection terminal portion 13 Is prepared.

[0033]   In another specific example, the connector portion 4 of the connection portion 3 is detachable. Configured in advance and adapted to the external connection terminal portions 13 of a plurality of types of mobile phones 10, respectively. A plurality of connector parts 4 are prepared and supplied as a set to the user. You can

[0034]   That is, in the present invention, the connector portion 4 provided in the connection portion 3 is The external contacts that are individually provided to a plurality of types of mobile phones 10 having different structures. Use multiple types of connector parts that can be individually fitted to the connection terminal parts 13 in a freely replaceable manner It may be configured so that

[0035]   Furthermore, in the connection part 3 in the present invention, the output part of the solar cell 2 (see FIG. (Not shown) and the control circuit 9 and the connector portion 4 are connected by appropriate wiring or by appropriate wiring. Of course, they are electrically connected by a circuit.

[0036]   In addition, as another specific example of the present invention, the mobile phone 1 is connected to the connection portion 3. The connector part 4 fitted to the external connection terminal part 0 of 0 can be moved via the signal line 25. It is also desirable that it is configured as provided in.

[0037]   That is, as shown in FIG. 4, inside the connection part 3 connected to the solar cell 2. A signal line 25 electrically connected to the circuit is extended from the connection portion 3 to A connector which is fitted to the external connection terminal portion 13 of the mobile phone 10 at the free end of the line 25. It has a structure in which the kuta portion 4 is attached.

[0038]   In this specific example, the auxiliary charger 1 for a mobile phone is connected to the mobile phone. Since the connection is not fixed and the positional relationship between the two is flexible, it can be used in a large number of ways. It is possible to extend the width.

[0039]   Further, in the above-mentioned specific example, the connector provided at the free end of the signal line 25 is When not in use, the connector portion 4 is an appropriate fitting groove portion 2 provided in the connection portion 3. It is desirable to be configured so as to be fitted and housed in the inside of 6.

[0040]   Further, as another specific example of the present invention, as shown in FIG. It is also desirable that the cap portion 5 that protects the connector portion 4 is detachably provided. .

[0041]   The cap 5 is attached to the auxiliary through an appropriate string, chain, tape, strap, etc. It is desirable to be held in a part of the charger 1.

[0042]   Similarly, the auxiliary charger 1 according to the present invention can be easily held by the user, Even if appropriate strings, chains, tapes, straps, etc. 15 are attached good.

[0043]   On the other hand, in the present invention, a charging device is constructed using a solar cell. , Basically, the intensity of sunlight is not constant, it constantly fluctuates, so charging Since the amount of electricity also changes constantly, the voltage generated by the solar cell is directly It is impossible to input power to the mobile phone.

[0044]   Therefore, as shown in FIG. 1, in the connecting portion 3 that connects the solar cell and the mobile phone, An appropriate voltage control circuit 9 is provided.

[0045]   The control circuit 9 of the present invention is provided with, for example, a voltage adjusting circuit 15. Or, the voltage generated by the solar cell 2 may be boosted to a predetermined voltage. It is preferable that the voltage change drive circuit unit 16 for reducing or reducing the voltage is provided.

[0046]   More specifically, the solar cell 2 outputs to the connection part 3 described above. A device provided with a voltage adjusting circuit 15 that absorbs at least a part of fluctuations in voltage And when the output voltage of the solar cell is high, it accumulates the specified electrical energy. When the output voltage of the solar cell is low, the stored electric energy It is used as an auxiliary to exert the function of absorbing a momentary voltage fluctuation.

[0047]   The voltage adjusting circuit 15 has a positive electrode 28 of the solar cell 2 as illustrated in FIG. The voltage adjusting circuit 15 is inserted in parallel between the negative electrode 29 and the negative electrode 29. It is hoped that it is also composed of one small, high-capacity electric double layer capacitor 31. Good

[0048]   In one embodiment of the present invention, the plurality of voltage adjusting circuits 15 (see FIG. Then, two examples are shown) or connected in parallel or a plurality of The electric double layer capacitors 31, 32, ... Are connected in series and in parallel with each other. It is formed by. The small and large capacity electric double layer capacitor 31 used in the present invention is Each has a size of several mm and has a capacity of at least 0.22 F or more. Things are desirable.

[0049]   Furthermore, in the present concrete example, the connection part 3 has an electric power generated by the solar cell 2. It is also desirable to provide a voltage changing circuit 16 for maintaining the pressure at a predetermined voltage. .

[0050]   The voltage changing circuit 16 according to the present invention is, for example, as shown in FIG. The change drive unit 60, the voltage detection unit 48 that detects the output voltage of the connection unit 3, Reference output voltage value of the connection unit 3 in which the detection information of the voltage detection unit 48 is preset Based on the comparison means 62 for comparing with Vref and the comparison result of the comparison means 62, The voltage change driving is performed so that the output voltage value of the connection portion 3 matches a predetermined reference output voltage value. It is preferably configured with a control unit 63 that controls the moving unit 60.

[0051]   Further, the control arithmetic circuit unit 63 in the present concrete example is an appropriate computer (C PU) including appropriate calculation means, appropriate control software, and if necessary, Based on the output signal from the comparing means 62, including a waveform modulating means (PWM). , An appropriate program and predetermined data provided in the voltage changing circuit 16 Corresponding from the specific control data stored in advance in the stored storage means 46 The control data is selected, and the control means 44 generates a desired drive control signal to generate the electric power. The pressure change drive unit 60 is driven.

[0052]   It should be noted that, in the above-mentioned specific embodiment of the present invention, the control arithmetic circuit section 63 is Needless to say, it may be included in the control circuit 44. Yes.

[0053]   In this specific example, the voltage change driving unit 16 is configured to generate the voltage generated by the solar cell 2. May include a voltage boosting circuit unit 60 that boosts the voltage to a predetermined voltage. A voltage that reduces the voltage generated by the booster circuit unit 60 and the solar cell 2 to a predetermined voltage. It may include both the voltage step-down circuit unit 65.

[0054]   In the above concrete embodiment of the present invention, the voltage boosting circuit of the voltage change driving unit 16 is provided. The section 60 or the voltage step-down circuit section 65 includes a coil 37, transistors 36, 45, and And a capacitor 41, and the control means 63 controls the transistor A control signal for turning on / off the data 36 and 45 at an appropriate timing and an appropriate pulse width. It is desirable to have a function to output.

[0055]   Further, FIG. 5 shows an example of a circuit diagram of the voltage change driving unit 16 in the present concrete example. As is understood from the figure, the positive electrode 28 and the negative electrode 29 of the solar cell 2 are Two electric double layer capacitors 31, 32 connected in series in parallel are connected to each other. Are connected in parallel through the Tokki diode 30 and are connected to the positive electrode 28 of the solar cell. The side terminal further includes a first transistor 36 (Q1), a coil 37, and a Schottky diode. The ion 40 is connected in series with each other and is connected to one of the output terminal portions of the connecting portion 3. The other output terminal portion of the connection portion 3 is in contact with the negative electrode 29 of the solar cell 2. Has been continued.

[0056]   On the other hand, the capacitor 41 is connected in parallel with both terminals of the connection section 3.

[0057]   In addition, two resistors 42 and 43 are connected in series between both terminals of the connection part 3 in series. Are connected, and the connection node part of the resistors 42 and 43 is connected to the connection part 3 of the connection part 3. A voltage detecting means 48 for detecting a divided voltage value between both terminals is provided. The voltage detecting means 48 is further connected to one input terminal of an appropriate comparing circuit 62. Has been.

[0058]   The other input of the comparison circuit 62 is configured to receive the reference voltage value. If the voltage value to be output from the connection portion 3 in the present invention is, for example, 5V, For example, a voltage of 5V is input to the reference voltage terminal.

[0059]   A Schottky diode 38 is connected to the input end of the coil 37. The second transistor 45 (Q2) at the output end of the coil unit 37. Of the second transistor 45 at the same time that the collector portion of the second transistor 45 is connected. The part is grounded.

[0060]   On the other hand, the base terminals of the first and second transistors 36 and 45 are both The transistors are connected to the control circuit 63, and the respective transistors output from the control circuit. ON / OFF control is appropriately performed in response to the control signal.

[0061]   In FIG. 5, R1, R2 and R3 are appropriate resistors, and C3 is an appropriate capacitor. Is.

[0062]   In the above specific example, the first transistor 36, the coil 37, and the second transistor A voltage booster circuit 60 is formed by the transistor 45 and the capacitor 41, and A voltage step-down circuit including the first transistor 36, the coil 37, and the capacitor 41. 65 is formed.

[0063]   That is, in the booster circuit 60, the first transistor 36 and the second transistor 36 As shown in FIG. 6, the on-off switching operation is executed by synchronizing the star 45. During the ON period of both the transistors 36 and 45, the current flows through the path i1. Therefore, energy is stored in the coil 37.

[0064]   At this time, since the second transistor 45 is also ON, the diode 40 Current does not flow to the output side.

[0065]   After that, in the OFF period of both the transistors 36 and 45, the counter electromotive force is applied to the coil 37. Occurs, a current flows through the path of i2 and is accumulated in the capacitor.

[0066]   Therefore, by repeating ON-OFF of the transistor, the capacitor The voltage of the sensor 40 rises and the output terminal voltage of the connection portion is boosted.

[0067]   On the other hand, when the output voltage of the solar cell is high, only the first transistor 36 concerned Is turned on and off, the second transistor 45 is controlled to a non-driving state, ON-with the duty ratio of the drive pulse of the first transistor 36 reduced. By turning off the drive, the output voltage of the solar cell is lowered. Is.

[0068]   In the above specific example, the storage means 46 is confirmed in advance through experiments or the like. The difference between the detected voltage and the predetermined reference voltage. Since the corresponding control data is stored, when the difference value is detected, the difference The control data included in the control means automatically selects the optimum control data for the value. And is configured to control each of the above transistors based on the control data. It

[0069]   As an example of the above specific example, a flat plate having dimensions of 100 mm × 55 mm is used. Then         Maximum output 0.478w         Maximum output voltage 6.72V         Maximum output current 39mAh A solar cell with the performance of can be constructed.

[0070]   Using this solar cell, it is possible to charge almost 100% in 4 hours of irradiation time. Depending on this, a maximum of 40 minutes of talk time or a maximum of 8 hours of reception waiting time It becomes possible to secure.

[0071]   The auxiliary charger 1 for a mobile phone according to the present invention has, for example, a thickness as described above. Is a flat-type solar cell 2 having a size of several mm to 10 mm, and its size For example, a solar cell 2 cut into a pocket size or a business card size The main body 20 is mainly composed of Used as a power source to charge the battery 12 composed of the secondary battery of the mobile phone 10. It is configured to do.

[0072]   Therefore, when the battery runs out in an emergency as described above, its power is It is possible to exert.

[0073]   In a conventional emergency charging device consisting of a disposable primary battery, the battery is disposable. Therefore, it is a complete waste of resources from the perspective of ecology, and also causes pollution. Becomes

[0074]   On the other hand, in the mobile phone auxiliary charger 1 of the present invention, the solar cell 2 is It can be used forever and it is pollution because the energy source is the sun or the light source. This is an auxiliary charger for mobile phones that is suitable for ecology without the occurrence of electric power.

[0075]   Especially in the event of an earthquake or other disaster, electricity in your home or office may not be available, or in winter. If you are in distress in the mountains, summer mountains, etc., as an emergency evacuation lifeline for rescue, Limited to the mobile phone 10.

[0076]   In particular, the victims who were buried in the rubble in the event of an earthquake, etc. For example, you can continue making calls or ring a ringtone to let you know where you are. As it comes, the utility of mobile phones as lifelines can be great.

[0077]   However, the rechargeable battery built in the mobile phone 10 and the primary battery for emergency use When the capacity is exhausted, only the solar cell 2 having good conversion efficiency can be relied upon.

[0078]   Therefore, as in the present invention, it is small and lightweight and large enough to fit in a shirt pocket. If you have KISANO solar cell 2, you can use it as a lifeline semipermanently without replacing the battery. It can be used and does not discharge spontaneously like a primary battery.   However, as long as there was sunlight, the call continued using the mobile phone for a long time. It can also be used for ringing tones to let you know where you are, thus increasing reliability. become.

[0079]   The mobile phone which is the target of the auxiliary charger 1 for the mobile phone used in the present invention The specification of the rechargeable battery built into the 10 is generally about 550 mAh at 3.6V. Degree ones are used.

[0080]   Therefore, the solar cell 2 used in the auxiliary charger 1 for the mobile phone according to the present invention is For example, if the size is a business card size, it is 50m at 6.72V. Since it has Ah charging capability, the mobile phone 10 is fully charged to 100%. 8 hours is enough.

[0081]   In addition, in order to make a call or receive or send information in an emergency, at least 30 % Charge is sufficient.

[0082]   That is, generally, even if not fully charged, 50% or Or, if you only get 30% charge capacity, wait for 2 or 3 days and talk for about 30 minutes It is possible to secure sufficient space.

[0083]   Also, not only the sun, but also at night when there is no disaster, fully charge it with the light of an incandescent lamp. And are possible.

[0084]   In the present invention, the solar cell 2 is used to charge the battery 12 of the mobile phone 10. Since the trickle charging method is generally adopted for the charging operation, the battery 12 There is almost no adverse effect on.

[0085]   On the other hand, as described above, the mobile phone 10 has different voltages depending on the type. Therefore, for example, by mounting an ultra-small regulator in the connection part 3, It is also desirable to configure the operation of the mobile phone 10 so that it can be operated smoothly without mistakes.

[0086]   In addition, the mobile phone 10 is currently used for NTT Docomo, J-phone, a The format and structure of u (CDMAone) are different from each other. However, the shape and structure of the external connection terminal portion 13 in each mobile phone 10 are also different. Therefore, the structure of the connector part 4 connected to it is different for each mobile phone. Need to be designed.

[0087]   Therefore, in the present invention, the connection part in each auxiliary charger 1 for mobile phones is Design the connector part 4 of No. 3 into a shape suitable for the type of each mobile phone 10 and The integration with the solar cell 2 is an example, and therefore, in this specific example, NT Auxiliary charger 1 for mobile phone for T-DOCOMO mobile phone, mobile phone for J-phone Auxiliary charger 1 for mobile phone or au (CDMAone) for mobile phone for mobile phone The auxiliary charger 1 etc. will be manufactured and sold individually.   As another specific example of the present invention, one auxiliary charger 1 for a mobile phone is Connector part 4 suitable for each external connection terminal part 13 of a plurality of types of mobile phones 10. Prepare multiple types and sell them as a set to the auxiliary charger 1 for the mobile phone. It is also possible to connect the connector part 4 to the connection part 3 in this case. As a mechanism that can be freely attached and detached by the user, an appropriate connector section 4 Is configured to be used by mounting.

[0088]   Therefore, in any of the above specific examples, a plurality of different connector parts 4 are mounted. Wearing a mobile phone auxiliary charger 1 or a plurality of different connector parts 4 as a set The auxiliary charger 1 for mobile phones, which was combined as described above, is manufactured, and the label is displayed on the packaging box. It is up to the consumer to choose.

[0089]

[Effect of device]   The auxiliary charger for a mobile phone according to the present invention has the above-mentioned technical structure. Therefore, it solves the above-mentioned problems in the past, and the sun or white can be used anytime, anywhere. If you have a light source such as a thermoelectric lamp or a fluorescent lamp, you can use it as a standby power source that can be easily charged. It is cheap and lightweight that can demonstrate its power when the battery runs out in an emergency. What has the effect of providing an auxiliary charger for mobile phones that is portable Is.

[Brief description of drawings]

FIG. 1 (A) is a front view showing the configuration of a specific example of an auxiliary charger for a mobile phone according to the present invention.
(B) is a side view thereof.

FIG. 2 is a front view showing an example in which the mobile phone auxiliary charger according to the present invention is connected to a mobile phone.

FIG. 3 is a diagram showing a detailed configuration example of a specific example of the auxiliary charger for a mobile phone according to the present invention.

FIG. 4 is a diagram showing another specific example of the auxiliary charger for a mobile phone according to the present invention.

FIG. 5 is a block diagram showing a configuration example of a circuit diagram in a specific example of the auxiliary charger for a mobile phone according to the present invention.

6 is a diagram showing a driving situation in the block diagram shown in FIG. 5;

[Explanation of symbols]

1 Auxiliary charger for mobile phones 2 solar cells 3 connection 4 Connector part 5 Cap section 6, 7 Strings, chains, tapes, straps 8 Cover 9 Control means 10 mobile phones 11 Display 12 batteries 13 External connection terminal 15 Voltage adjustment circuit 16 Voltage change driver 20 solar cell unit cells 21 Positive electrode 22 Negative electrode 25 signal lines 26 Groove 28,29 Solar cell output terminal 30, 38, 40 Schottky diode 31, 32 Electric Double Layer Capacitor 33, 34, 35, 42, 43 resistors 39, 41 capacitors 36 First Transistor 37 coils 44 Control circuit 45 Second transistor 46 storage means 48 voltage detection circuit 60 step-up circuit 62 Comparison circuit 63 control arithmetic circuit, 65 Step-down circuit

Claims (19)

[Scope of utility model registration request] 1. An auxiliary charger for a mobile phone including a solar cell configured to be detachably connectable to the mobile phone. 2. The auxiliary charger for a mobile phone according to claim 1, wherein the auxiliary charger is formed in a thin plate shape. 3. The auxiliary charger for a mobile phone according to claim 1, wherein the solar cell is a silicon solar cell. 4. The auxiliary charger is formed in the same size as or close to the size of a pocket of clothes, a notebook, a business card, a credit card, a telephone card, or the like. The auxiliary charger for mobile phones according to any one of 1 to 3. 5. The mobile phone according to claim 1, wherein the auxiliary charger is provided with a connection portion that engages with an external connection terminal portion of the mobile phone. Auxiliary charger. 6. The auxiliary charger for a mobile phone according to claim 5, wherein the connection part is provided with a connector part that fits into an external connection terminal part of the mobile phone. 7. The voltage adjusting circuit for absorbing at least a part of the fluctuation of the voltage output from the solar cell is provided in the connection portion, according to any one of claims 1 to 6. Auxiliary charger for mobile phone described. 8. The voltage adjusting circuit is inserted in parallel between the positive electrode and the negative electrode of the solar cell, and the voltage adjusting circuit is composed of at least one small and large-capacity electric double layer capacitor. Claim 1 characterized in that
An auxiliary charger for a mobile phone according to any one of 1 to 7. 9. The voltage adjusting circuit is formed by connecting a plurality of the electric double layer capacitors in series or in parallel with each other or by connecting a plurality of the electric double layer capacitors in series and in parallel with each other. The auxiliary charger for a mobile phone according to claim 8, wherein the auxiliary charger is for a mobile phone. 10. The solar cell is formed of one selected from the group consisting of single crystal silicon, polycrystalline silicon and amorphous.
An auxiliary charger for a mobile phone according to any one of 1. 11. The voltage change circuit for maintaining the voltage generated by the solar cell at a predetermined voltage in the connecting portion, according to claim 1. Auxiliary charger for mobile phones. 12. The voltage change circuit includes a voltage change drive unit, a voltage detection unit that detects an output voltage of the connection unit, and reference information from the connection unit in which detection information of the voltage detection unit is preset. A comparison unit that compares the output voltage value and a control unit that controls the voltage change drive unit so that the output voltage value of the connection unit matches a predetermined reference output voltage value based on the comparison result of the comparison unit. The auxiliary charger for a mobile phone according to claim 11, wherein the auxiliary charger is configured by: 13. The auxiliary charging for a mobile phone according to claim 12, wherein the voltage change driving unit includes a voltage boosting circuit unit that boosts a voltage generated by the solar cell to a predetermined voltage. vessel. 14. The voltage change driving unit includes the voltage boosting circuit unit and a voltage step-down circuit unit that steps down the voltage generated by the solar cell to a predetermined voltage. Auxiliary charger for mobile phone described. 15. The voltage step-up circuit section or the voltage step-down circuit section of the voltage change drive section is a coil, a transistor,
And a capacitor, and the control means has a function of outputting a control signal for turning on and off the transistor.
Auxiliary charger for mobile phone according to 4. 16. The connection part is provided with a connector part that fits into an external connection terminal part of the mobile phone so as to be movable via a signal line.
An auxiliary charger for a mobile phone according to any one of 1. 17. The connector part provided in the connection part can be individually fitted into the external connection terminal parts provided individually in a plurality of types of mobile phones having different structures. The auxiliary charger for a mobile phone according to any one of claims 6 to 16, wherein the auxiliary charger is configured to be replaceable. 18. The auxiliary charger for a mobile phone according to claim 6, wherein the connecting portion is provided with a cap portion for protecting the connector portion. 19. The auxiliary charger for a mobile phone according to claim 2, wherein the flat solar cell is formed to be foldable.