WO2016028249A1

WO2016028249A1 - Device for recharging/charging a storage battery of a digital device

Info

Publication number: WO2016028249A1
Application number: PCT/UA2015/000036
Authority: WO
Inventors: Виктор Грыгорийовыч РОМАНЭНКО
Original assignee: Виктор Грыгорийовыч РОМАНЭНКО
Priority date: 2014-08-19
Filing date: 2015-04-21
Publication date: 2016-02-25
Also published as: UA96539U

Abstract

The invention relates to charging devices of storage batteries of digital devices by using solar energy. The claimed device comprises a solar panel with a solar module which consists of photoelectric converters and is arranged on the reverse side of a housing of the digital device or on the external surface of a cover thereof, and a sensor for measuring solar radiation or illuminance. Furthermore, the solar panel is connected to the storage battery of the device and comprises an additional solar module which is arranged on the external surface of an additional movable cover of the housing of the digital device, which cover is shiftable horizontally relative to the housing of the digital device. The device also comprises an additional autonomous solar panel, on the internal sides of which solar modules which are deployable to an angle of 180° and are intended for detachably connecting to the housing of the digital device are arranged. The claimed solution provides for an increase in power of a solar panel by connection of an additional solar panel with additional solar modules.

Description

Battery Charger / Charger

digital device

The utility model relates to devices that provide recharging / charging of the battery of a digital device (smartphone, tablet computer and others) when it operates in the absence of a stationary 220V electric network due to the use of solar energy.

Currently, a large number of digital electronic devices are used, such as mobile phones, smartphones, laptops, digital cameras, digital video cameras and personal digital assistants that have rechargeable batteries. The user charges the battery by connecting an electronic device to a stationary 220V electrical network. In cases where there is no network, during operation the device’s battery is discharged and the device itself stops working. A device for charging a mobile phone (Patent of Ukraine J "21678, IPC NOSH 10/44, Н01М 10/46, publ. March 15, 2007, Bull. N ° 3, 2007), which contains a unit for converting external energy into a supply voltage and an element for transmitting the supply voltage to the power supply unit of the mobile phone, wherein the element for transmitting the supply voltage to the power unit of the mobile phone is connected to the unit for converting external energy into a supply voltage, in which the unit for converting external energy into a supply voltage is made in in the form of a solar battery, while the solar battery is made in the form of a thin-walled transparent film with a coating deposited on one side, which turns solar energy into a supply voltage. This device is designed to recharge only mobile phones and is structurally a separate element, which, if necessary, is connected to a mobile phone. This makes it inconvenient to use a mobile phone during charging, because during operation it is necessary to always carry and store this device for charging somewhere with you. In addition, the use of a solar battery, which is made in the form of a thin-walled transparent film coated on one side, does not allow you to quickly recharge the power supply of a mobile phone.

A well-known mobile phone with a solar battery (Ukrainian Patent JY281437, IPC Н04М 1/02, H01L 31/0352, publ. 06/25/2013, Jul.K 12), comprising a housing with controls placed on it, a display, a microphone, a sound speaker, a satellite communication system, a digital photo / movie camera, a vibration mode system and a solar battery associated with the power supply, while the solar battery is located on the back wall of the phone and is covered with a cover, which differs in that the cover is hinged and located on its inner surface additional solar battery. Due to the fact that the solar battery consists of a solar panel and a separate battery, which after charging can transfer its energy to the main battery of a mobile phone, we should expect a significant increase in the size of both the phone itself and the hinged cover. Known portable personal computer (Ukrainian Patent J4 ° 84470, IPC G06F 1/18, H01L 31/042, publ. 10.25.2013, BKWLJVS 20), consisting of a main unit with a keyboard, a battery, a lid with a screen on the inner surface, solar panels located on the outer surface of the lid, with the possibility of opening it at a certain angle, and a protective lid is additionally fixed to the lid, the inner surface of which is covered with reflective material, while it and the lid with the screen are made with the possibility of their optimal opening with respect to Of the sun. The proposed technical solution is suitable with sufficient efficiency only for laptops, which in comparison with other digital devices have a significantly large size of the working surface of the solar panel. However, given the significantly higher power supply of laptops (20-35 W), their batteries have a large capacity (on average from 5,000 to 7,500 mAh), such batteries for an acceptable duration of recharging / charging require more power from a recharge source (i.e., a solar panel) , which is problematic to ensure even with the existing sizes of the laptops themselves, not to mention the sizes of modern mobile phones, smartphones, tablets.

A known photovoltaic solar battery (Ukrainian Patent JY ° 32385, IPC H02J 7/35, publ. 12.05.2008, bull. JV "9), consisting of a folding casing, on the inner surfaces of which are mounted photovoltaic converters containing an external protective laminated coating, and connecting cable for connecting the load, in which between the inner surface of the housing and the photoelectric converters there is a layer of tedlar with a thickness of at least 1 mm, with which with a gluing layer connected photovoltaic converters. A folding case consists of four sections, each of which has photovoltaic converters. This solution is made in the form of a separate portable solar charger, which is an application to various portable digital technology. For use, it is necessary to constantly keep the battery close to this technique, which is not always convenient. Given the variety of types of disconnectors for various portable equipment, a significant number of adapters (adapters) are required. A self-contained charger (Patent of Ukraine N ° 47833,

IPC H02J 7/35, publ. 02/25/2010, bull. j \ b 4), containing two solar panels and made with the possibility of connection to the consumer. The device further comprises an electronic unit configured to automatically switch the solar panels into serial or parallel connection modes. This technical solution is a stand-alone charger with two solar panels, which, depending on sunlight, can be connected in series (with strong light) or in parallel (with low light). This solution allows you to adjust the magnitude of the charging current of the main battery, but does not provide a constant voltage value, which should be equal to the voltage of the battery that is being charged. As a result, the power of the charger remains unchanged, and accordingly, the charging time will not decrease. Known universal case for electronic devices (Patent

RF JY 91821, IPC A45C 1 1/00, publ. 03/10/2010), which is made in the form of a folding box-shaped case having a rear, front and side walls. A battery box is installed in one of the walls of the case a battery associated with a solar battery made of photovoltaic converters mounted on the outer surface of the case from the side of exposure to light rays, while inside the case there is an input connector for connecting an electronic device located in the case to the battery of the case, which is provided with a charge-discharge controller, connected between the photoelectric converter and the battery. The proposed technical solution due to the placement of a separate battery in the case (universal for various types of digital devices) of a case will necessarily lead to an increase in the overall dimensions of such a case, which is not very convenient for everyday use of such digital devices. Given the wide variation in the dimensions of different types of digital devices, which may require recharging, it is problematic to ensure the optimal dimensions of the case itself.

A well-known universal power source for a mobile phone (RF Patent for utility model JV ° 99907, IPC H02J7 / 35, Н04В 1/08, publ. 11/27/2010), including a solar battery consisting of photoelectric converters mounted on a battery, which connected to the solar battery using a control device and control the charge-discharge of the battery, in which the universal power source is made in the form of a mobile phone cover. This power supply does not have a protective coating on the outside of the back cover, which does not protect the surface of the solar panel, and therefore it does not provide high-quality operation when using the phone. And the insignificant geometric dimensions of mobile phones (in which the proposed solution is supposed to be used) will not provide high energy efficiency of the solar panel. In accordance with this, the duration of charging / recharging the battery will be significant, which will create certain inconvenience for users. This technical solution was chosen as the closest analogue. The utility model is based on the task of creating a device for recharging / charging the battery of a digital device, the new design of which will gradually increase the power of the charging unit (solar panels), depending on the level of discharge of the battery of the digital device, reducing the required time for recharging / charging the battery batteries of the digital device, also the proposed device will provide the ability to recharge / charge the battery Rei digital device regardless of the availability of power supply. The problem is solved in that a device for recharging / charging a battery of a digital device, including a solar panel with a solar module, which consists of photovoltaic converters, is located on the back of the digital device housing or on the outer surface of the cover of the digital device, and a sensor for measuring solar radiation or light, and the solar panel is connected to the battery of a digital device, in which, according to a utility model, the solar panel This includes an additional solar module, which is located on the outer surface of the additional sliding cover of the digital device housing, which is made with the possibility of horizontal displacement relative to the housing of the digital device, and the device contains an additional stand-alone solar panel configured to open at an angle of 180 °, and on the inner sides of which there are solar modules, and is designed for detachable connection with the body of a digital device, and on an additional stand-alone solar panel there is an electric disconnector for connecting to a digital device and at least two pins for mechanical fixation with digital device case.

In addition, a sensor for measuring solar radiation or light is mounted on the outer surface of the sliding cover of the digital device. The invention is illustrated by drawings, in which Fig. 1 shows the proposed device for recharging / charging the battery, which is located on the back side of the housing of the digital device (side view of the digital device), Fig. 2 shows the proposed device, which is located on the back of the housing of the digital device (rear view of the digital device), FIG. 3 shows the proposed device located on the back side of the digital device, with a sliding additional sliding cover (rear view of the digital device), on Fi .4 - additional stand-alone solar panel of the proposed device (folded), Figure 5 - additional stand-alone solar panel of the proposed device (in expanded form), Fig.6 - the proposed device with connected additional stand-alone solar panel in the open form (digital view devices in the back), in Fig. 7 is a general view of the structure of the photovoltaic element of the solar module, and in Fig. 8 is a structural diagram of the device. These drawings are provided for explanation on the example of a smartphone, but do not limit the possibility of implementing a utility model. In the drawings (see Fig.1-6) for an example of a description of the proposed device shows a digital device - a smartphone and the following notation:

I - smartphone case; 2 - the front of the smartphone (display with controls);

3 - the back of the smartphone (for example, the outer surface of the protective cover or the back side of the monolithic block of the case);

4 - solar panel from solar modules 5 and 6; 5 - solar module;

6 - solar module;

7 - sliding cover of the smartphone;

8 - additional autonomous solar panel, which is configured to open at an angle of 180 °, and on the inner sides of which are placed solar modules 9 and 10;

I I - electric disconnector for connecting an autonomous solar panel 8 to a smartphone;

12 - pins for mechanical fixation of an autonomous solar panel 8; 13 - socket for an electric disconnector for connecting an autonomous solar panel 8, located on the side of the housing 1 of the smartphone, opposite the direction of shift of the sliding cover 7 with the solar module 6; 14 - sockets for mechanical fixation of the autonomous solar panel 8, made on the side of the housing 1 of the smartphone, opposite the direction of shift of the sliding cover 7 with the solar module 6; 15 - sensor for measuring solar radiation or light.

The design of solar modules 5, 6, 9, 10 (SM) includes a large number of photovoltaic cells (PVE) as converters of solar energy into electrical energy, the basis of which are semiconductors made of silicon crystals. The crystals are connected to each other in series and in parallel, which provides the necessary initial parameters of such modules: output power - P _o , output voltage - and _X and output current - 1 _o . Depending on the type, the crystals can be single crystal, polycrystalline or amorphous. Single crystals have the best operational parameters, therefore, further analysis and calculations will be given taking into account the known operational parameters of just this type of crystals. The design of solar modules also provides for the protection of photovoltaic cells from mechanical damage, dust, moisture and scratches due to their coating with high-strength glass. Schematically, the structure of the solar module can have the following form (see Fig. 7), where 16 is the material of the casing of the solar module, 17 is the semiconductor material (PEE) of the solar module, 18 is protective glass.

A description of the essence of the technical solution that is being proposed will be laid out using the averaged parameters of modern models of smartphones / communicators, the main of which are given in table. 1 (according to manufacturers). Table 1

x9, l

.4 Multi Phone 116x

3.5 13.0 300.0 Li-ion 1200 73.1 3350 DuO 63x12

.5 Lenovo Vibe X 144x74x6,

5.0 _ *. * 106,

Li-pol 2000 (S960) 9 6.6 Samsung Galaxy 151,2x79,2 119,

5.7 20.0 490.0 Li-ion 3200 Note 3 Jet x8.3 8.7 117x59.5x

SM G9098 2x3.7 _ * _ *. * 1900 69.6

15.8

.8 133.9 x

LG Nexus 4 4.7 17.0 300.0 Li-pol 2300 92.0

68.7 x 9.1

.9 Zhenai A900 4.1 115x50x10 6.0 150.0 Li-ion 2000 57.5

Averaged 130.8x66.1 2244.4

18.8 402.7 88.0 parameters xl0.5 2300)

Note: * - data not available.

A quantitative assessment of the effectiveness of the practical use of the technical solution that is proposed will be carried out by calculating the duration of the recharging / discharging of the standard battery (battery) of the smartphone for various levels of its discharge -

One of the main parameters of the efficiency of solar panels is its coefficient of performance (COP) - η. This coefficient characterizes the efficiency of converting solar energy into electrical energy and is calculated by the formula [5]:

C, - U _B bix * I _B bix / S * J, where, and _V o (V), 1 _V o (A) - voltage and current value at the output of the solar panel with the connected load; S (m ² ) is the area of the solar panel;

J (W / m ² ) is the average intensity of solar radiation on the Earth's surface. It is believed that its greatest value is 1000 W / m ² , and the average value is taken equal to 850 W / m ² = 0.085 W / cm ² [4].

Modern photovoltaic cells based on silicon single crystals, which are produced in industry, have an average value of efficiency of 15-17% [1, 8]. Prospective development of such elements can ensure its increase to the level of 20-22% [2, 5, 6, 7, 8]. The thermodynamic limit for photovoltaic cells made of silicon single crystals is 25% [8].

Using other materials for the production of photovoltaic cells and applying the latest technologies can significantly increase the value of efficiency. Thus, the efficiency of gallium arsenide photovoltaic cells can reach a level of 35–40% [7, 8, 9], and experimental samples of new solutions in this area in laboratory studies demonstrate an efficiency of about 90% [3].

In further calculations of the duration of the recharging / charging time, a value of 15% is taken as the base value of the efficiency. It is clear that the use of solar modules with a high efficiency in a utility model will provide, and a corresponding reduction in the required length of recharging / charging of the battery of a digital device.

It is proposed to achieve the intended purpose by recharging / charging by gradually increasing the power of the solar panel (SP) by connecting an additional joint venture with additional solar modules (SM) in each of three modes: Mode 1 (current recharging mode) - when the standard battery is discharged to 85% (conditionally).

Mode 2 (enhanced recharging mode) - when the standard battery is discharged to 50% (conditionally). Mode 3 (charging mode) - when the standard battery is discharged to

10-15% (conditional).

In the current recharging mode (Mode 1), a joint venture with one solar module 6 is used, which is located on the outer surface of the additional sliding cover 7 of the smartphone, which is made with the possibility of horizontal displacement relative to the housing 1 (see Figure 2).

In enhanced recharging mode (Mode 2), SP 4 is used with two SM 5 and 6. To do this, you need to slide the sliding cover 7 of the smartphone to the side (see Fig. 3) and after its displacement, the solar module 5 located on the back of 3 is additionally connected housing 1 smartphone. This opens up additional access of solar radiation to the solar module 5, which makes it possible to use two solar modules to recharge the battery, as a joint venture. In this mode, it remains possible to use the smartphone for its intended purpose.

In charging mode (Mode 3), an autonomous solar panel 8 (see Fig. 4), which consists of two solar modules 9 and 10, is additionally connected to the smartphone case 1: for this, the smartphone user needs to do the following: expand the autonomous solar panel 8 ( see Fig. 4-5) and attach it to the housing 1 of the smartphone, that is, insert the electric disconnector 11 into the socket 13 located on the side of the housing 1 of the smartphone, and at the same time fix the pins 12 in the sockets 14, made on the side of the housing 1 of the smartphone (see Fig. 6). Slots 13 and 14 are made on the side of the smartphone housing 1, which is opposite to the bias direction of the removable additional smartphone cover 7. In this case, the solar panel will consist of four solar modules 5, 6, 9 and 10. In this mode, the operation of the smartphone for its intended purpose is impossible.

It should be noted that the stand-alone panel 8 can be used as a charger and for any other digital device with the corresponding connector and voltage.

To quantify the operational efficiency of the technical solution that is proposed, the following averaged initial smartphone data (from Table 1) were adopted: battery charging capacity - C = 2300 mAh; working area of the solar panel - S _cn = 88 cm ² ; talk time (duration of a continuous conversation to an acceptable level of battery discharge) - T _ung = 18.8 hours; waiting time (discharge duration of the battery to an acceptable level without tapping) -. T _standby = 402.7 h under operational efficiency understood expectancy time charge / charge the battery depending on the level of its discharge, the intensity level of solar radiation and the amount of solar modules, which are used .

1. If the battery is discharged by 15%, then its charging capacity decreases by Δ = 345 mAh. Offered for him For recharging up to 100%, use a joint venture with one SM, that is, the current recharging should be carried out in Mode 1 (Figure 2).

In this case, a joint venture with one SM with an area of S _cn = 88 cm ² and t = 15%, for example, will provide a recharge current:

0.085 / 5 = 0.224 A. With this current, it takes time to charge the battery to 100% of its capacity:

Tzar (100%) = A / 1 ₃ ar = 0.345 / 0.224 = 1.54 hours (1 hour 32 minutes).

It takes time to recharge the battery to 95% capacity:

T _zar (95%) = A / 1 for _P = 0.23 / 0.224 = 1.03 hours (1 hour 2 minutes). Thus, if the battery is discharged by 15%, then to fully charge it in Mode 1, it will be necessary to ensure that the back side of the upper element of the smartphone case is exposed to direct sunlight for 1 h 32 minutes, and for 95% recharge a little more than 1 hour . If the activity of the smartphone user in the talk mode allows him to use Mode 2 (that is, apply two SM) and thereby increase the power of the joint venture by half, then it will be possible to reduce the charging time (up to 100%) to 46 minutes, and the charging time ( up to 95%) to -30 minutes. 2. If the battery is discharged by 50%, then its charging capacity decreases by Δ = 1,150 mAh. In this case, to recharge it to 100%, it is proposed to use a joint venture with two SMs, that is, enhanced recharging should be carried out exclusively in Mode 2 (Fig. C). In this case, a joint venture of two SMs with = 15% will have a total area S _cn = 88 * 2 = 176 cm ² and at a charging voltage of U _3ap = 5B it will provide a charging current:

A. With this current, it takes time to charge the battery to 100% of its capacity:

15 / 0.449 = 2.56 hours (2 hours 34 minutes).

It takes time to recharge the battery to 95% capacity:

hours (2 hours 18 minutes).

It takes time to recharge the battery to 85% of its capacity: T ₃ ar (85%) = A / 1zar = 0.805 / 0.449 = 1.79 hours (1 hour 47 minutes).

Thus, if the battery is discharged up to 50%, then the most convenient for the user will be charging it in Mode 2 to the level of 85%, which will fully ensure the reliability of further operation of the smartphone, but the possibility of conducting conversations while charging will be limited.

3. If the battery is discharged by 85-90% (to a dangerous level), at which the further use of the smartphone is automatically stopped (in order to preserve the battery itself), it will be necessary to use Mode 3 (charging mode) to restore the battery’s performance. This mode provides for connecting to the smartphone an additional autonomous solar panel such as a layout of two SM (Figure 6). In view of a significant reduction in the quality of the smartphone as its compactness, the use of Mode 3 will be possible only if the smartphone and the additional stand-alone solar panel are in a stationary position without using it in talk mode. But without recharging Using the smartphone in talk mode will also be impossible due to its disconnection. Therefore, this mode does not add additional inconvenience to the user.

In this case, the joint venture of four SM (Fig.6) with 1 \ = 15% will have a total area S _cn = 88 * 4 = 352 cm ² and at a charging voltage

V can provide a charging current I _3ap =: il * S * J / U _HOM = 0.15 * 352 * 0.085 / 5 = 0.9 A. With this current, it takes time to charge the battery to 100% of its capacity:

T ₃ ar (10% = Mzar = 1.955 / 0.9 = 2.22 hours (2 hours 13 minutes). It takes time to recharge the battery to 85% of its capacity:

Tzar (85%) = A / 1 ₃ ar = (1 _? 955-0.345) / 0.9 = 1.61 / 0.9 = 1.79 hours (1 hour 47 minutes).

It takes time to recharge the battery to 50% of its capacity:

Tz _ar (50%) = Mzar = (1, 15-0.345) /0.9 = 0.805 / 0.9 = 0.89 hours (1 hour 17 minutes).

The proposed technical solution for recharging / charging the battery of a digital device by gradually increasing the power of the solar panel (Mode 1 - Mode 2 - Mode 3), depending on its level of discharge, ensures the achievement of the intended purpose of the utility model and the technical result that is proposed. The duration of the recharging / charging time is permissible for the practical use of digital devices in the absence of a 220 V stationary electric network for recharging it.

The structural diagram of a utility model for charging batteries with a gradual increase in the power of the solar panel, which is proposed, has the following components (see Fig. 8): 19 - a mobile digital device (smartphone);

20 - standard battery;

21 - a standard adapter for charging from a stationary 220 V network;

22 - a controller for selecting a charging mode; 23 - voltage stabilizer with protection elements for solar panel modules;

24 - a common solar panel, which consists of four solar modules 5, 6, 9, 10;

25 - charging control unit; 26 is a unit for estimating charging time;

27 - controller discharge / charge;

28 - controller of the level of solar radiation;

15 - sensor for measuring solar radiation or lighting.

During operation of the smartphone 19, the discharge / charge controller 27 controls the degree of discharge of the standard battery 20, the control results are transmitted to the charging control unit 25. Depending on the available solar radiation level, which is estimated by the solar radiation level controller 28 using a solar radiation or lighting measurement sensor 15 , the charging time evaluation unit 26 determines the duration of the charging time to 100% of the battery capacity and is transmitted to the charging control unit 25, from where this and Information is transmitted for display on the main display of the smartphone 19. From the charging control unit 25, the corresponding information is also transmitted to the charging mode selection controller 22, in which, in accordance with the determined current discharge level of the battery and the available level of solar radiation, a decision is made regarding the choice of the best charging mode (Mode 1, Mode 2 or Mode 3) and transmitted through the charging control unit 25 for display on the main display of the smartphone 19. The user after evaluation information received and a sufficient level of recharging (up to 100%, up to 85% or only 50%) and an acceptable duration of recharging / charging, decides on the choice of sufficient for him charging mode and using the controls of the smartphone 19 transmits the appropriate command through the charging control unit 25 to the charging mode controller 22, which connects the standard battery 20 to the voltage stabilizer 23. In accordance with the selected charging mode, the user must switch the structure of the common solar panel 24 corresponding to the selected mode (solar panel with one 6, two 6 and 5 or four solar modules 6, 5, 9, 10). At the same time, on a command from the charge mode selection controller 22, through the charge control unit 25, the discharge / charge controller 27 switches to the charge level control mode of the standard battery 20 in order to exclude the possibility of recharging it. In the case of recharging the battery from a stationary 220V network by connecting a standard adapter 21, the mode selection controller 22 disconnects the battery 20 from the solar panel 24.

The application of the utility model, which is proposed, is to provide the possibility of recharging / charging (depending on the level of discharge) a standard battery of modern mobile devices: mobile phones, smartphones / communicators, tablets, laptops in the absence of a stationary 220 V electric network through the use of a solar panel with a gradual increase in its power.

The technical solution that is proposed:

- provides for the regular placement of the battery in the phone’s case, and does not require transferring it to the back cover case;

- the use of modern mobile smartphones, computer tablets, which have increased geometrical dimensions compared to the sizes of ordinary mobile phones based on the now widely used silicon solar modules made of silicon, will ensure the acceptable duration of charging / recharging;

- when using (in the future) materials now known for the manufacture of solar modules (but not yet widespread) it will be possible for ordinary mobile phones to provide acceptable charging / recharging times, and for smartphones and computer tablets to significantly reduce this duration.

Using existing materials to cover the surfaces of solar modules (which now provide high-quality protection for the surfaces of smartphones, computer tablets) will ensure their reliable protection from all kinds of mechanical damage.

Information sources:

1. General information. The principle of operation, LLC NPF Ecoteplo (http://www.ekoteplo.com/ni/energosberezhenie-v-chastnomsektore / fotoelektrika / obshchaya-informatsiya-printsip-raboty). 2. Solar panels from perovskites (http://ecoenergy.org.ua/solnechnyie-batarei/solnechnye-batarei-iz- perovskitov.html)

3. Developed inexpensive solar cells made of plastic (http://www.3dnews.ru/587300)

4. Solar battery - a necessity or a luxury? (Http://fotomag.com.ua/tg/topic/solnechnaya-batareya---neobhodimost-ili- roskosh-388069.html)

5. Sharp began mass production of solar panels for phones (http: //www.Зdnews.I news / sha _nachala_massovii_vipusk_solnecrmih_J) anel ei_dlya_telefonov /)

6. Sharp showed a prototype of a black 450-megawatt solar panel

(http: //www.3dnews.ri^news/novoe_pokolenie_te

8. V.P. Efimov. Solar energy photoconverters of a new generation. National Science Center "Kharkov Institute of Physics and Technology", Ukraine, full name FIL PSE, 2010, v. 8, N ° 2, vol. 8, No. 2, S. 100-103 (http://www.pse.scpt.org.Ua/rus/jornal/2_10/2.pdf)

9. D.M. Freik et al. Photoelectric converters of solar radiation. Achievements, current status and development trends (review). Solid State Physics and Chemistry, Vol. 13, Zh (2012), pp. 7-20 (http://www.pu.if.ua/inst/phys_che/start/pcss/voll 3 /! 1301-01.pdf)

Claims

Formula

1. The device for recharging / charging the battery of a digital device, including a solar panel with a solar module, which consists of photoelectric converters, and is located on the back of the housing of the digital device or on the outer surface of the cover of the digital device, and a sensor for measuring solar radiation or light, and the panel is connected to the battery of a digital device, which is characterized in that the solar panel includes an additional solar module, which p it is located on the outer surface of the additional sliding cover of the digital device housing, which is made with the possibility of horizontal displacement relative to the housing of the digital device, the device comprising an additional self-contained solar panel, made with the possibility of opening at an angle of 180 °, and on the inside of which the solar modules are placed, and is intended for detachable connection to the body of the digital device, and on an additional stand-alone solar panel placed electric disconnect l for connection to a digital device, and at least two pins for fixing to the housing of the digital device.

2. The device according to claim 1, characterized in that the sensor for measuring solar radiation or light is mounted on the outer surface of the sliding cover of the digital device.