RU2713198C1 - Radioelectronic device and charging system - Google Patents

Abstract

FIELD: electrical engineering.

SUBSTANCE: radioelectronic device includes a housing, a rechargeable battery, two pairs of contacts connected to poles of a rechargeable battery. One contact from each pair is brought outside on one side of the housing surface and one contact from each pair is brought out from the opposite side of the housing surface so that on opposite sides of the housing surface there are two contacts, one of which is connected to positive pole of rechargeable battery, and the other one is connected to its negative pole, at that two contacts connected to the same pole are located opposite to each other. Charging system comprises a charging station and radioelectronic devices and is equipped with contacts brought out from the side of its upper working surface. On working surface of charging station there is one radioelectronic device, contacts of which are closed on contacts of charging station. Each subsequent radioelectronic device is placed on the previous one. Rechargeable batteries of radioelectronic devices are connected in parallel.

EFFECT: reduced surface area required to accommodate the charging system, while simplifying the design of the charging station and the charging system as a whole.

8 cl, 7 dwg

Description

The group of inventions relates to the field of electrical engineering, namely, charging systems designed to simultaneously charge several (two or more) devices, in particular, electronic devices - receivers and / or transmitters (transceivers), as well as to the design of rechargeable electronic devices .

At present, electronic equipment is widely in demand, in particular for conducting group excursions with a guide (tour systems including a transmitter for a guide / guide and receivers for a group of tourists), individual audio guides for museums, simultaneous interpretation equipment and conference systems, etc. d. Such electronic devices should be user-friendly, compact, have autonomous power. Typically, such devices operate on batteries (rechargeable batteries) that require periodic charging. To charge devices, for example, which are part of tour systems, it is preferable to use charging stations (chargers), which simultaneously charge the entire set of electronic devices, the number of which can be 6-12-20-36 or more pieces in a set. The charging time is an average of 5-10 hours. With an intensive excursion flow several hundreds or thousands of sets of excursion systems can be used simultaneously, therefore, to charge these sets of devices, it is necessary to use the corresponding number of charging stations. The placement of such a number of charging stations requires significant free space, therefore, the overall parameters of the charging station and the charging system as a whole are essential.

Electronic devices are charged as part of the charging system.

In general, a charging system comprises a charging station (also called a “docking station”) that can be connected to a direct current source, and devices with rechargeable batteries (also called “rechargeable batteries” or “rechargeable batteries”) installed in the charging station to charge while the contacts of the charging device associated with the poles of its rechargeable batteries are in contact (closed) with the contacts of the charging station. When connected to a direct current source, the process of charging the batteries of rechargeable devices begins.

Known, for example, the charging system of a mobile device according to patent No. RU2666776C1 "Charging method, mobile device, charger and charging system" [IPC H02J7 / 00, date publ. 09/12/2018], which contains a mobile device and a charger. Also known is a charging system including a mobile device and a charger [patent No. RU2633710C2 “Charging method, mobile device, charging charger and charging system”, IPC H02J7 / 00, date publ. 10/17/2017]. The charger contains a charger switching module and a charging circuit, and the mobile device contains a rechargeable battery and a connector, a charging terminal and a ground terminal, an analog switch, a charging circuit and a USB port, the input terminal of the charging circuit is connected to a USB port. However, in the known technical solutions for patents Nos. RU2633710C2 and RU2666776C1 relating to charging systems, it is possible to charge only one device, and the design of rechargeable mobile electronic devices does not provide for the possibility of connecting several devices (their batteries) to each other for simultaneous charging.

Known technical solutions related to charging systems, providing the ability to simultaneously charge multiple devices (devices) and containing individual charging cells or charging modules to accommodate rechargeable devices, for example: patent No. RU127542U1 "Transport-charging complex for wearable radio stations" [IPC H02J7 / 32 , date publ. 04/27/2013], No. EP0246336A1 "Multistation modular charging system for cordless devices" [IPC H02J7 / 00, date publ. 11.25.1987], No. TWM472357U "Charging structure of handheld mobile tour guide device" [IPC H02J7 / 00, date publ. 02/11/2014], No. RU2623996C2 “Charging station and system” [IPC H02J7 / 02, date publ. 06/30/2017]. However, the known solutions due to the presence of individual charging cells or modules are characterized by increased mass and size parameters and structural complexity.

For example, a charging system is known, which is a Reinvox C-324 charging case with 24 cells in which rechargeable receivers and transmitters (transceivers) are installed to charge them simultaneously [web page address: http://www.spbsinhro.ru / catalog / radio / sale2 /]. The case can also be used as a transport module. An individual charging cell is provided for each charging device. In the known technical solution, it is possible to directly extract the charging station from the case case and place it vertically on the wall, for which an additional system for fixing rechargeable devices is used, which complicates the design. In addition, placing the charging system on a vertical wall requires additional devices.

A known system for wireless charging of mobile devices according to patent No. RU2524920 C1 ["Shielded system of wireless multi-position charging of mobile devices", IPC H02J7 / 00, date publ. 08/10/2014], designed to simultaneously charge multiple devices. The charging system includes a charger and one or more power receiving devices. An energy receiving device is an electric, electronic, battery powered, mobile, or any other device capable of consuming energy or charging wirelessly through a magnetic field. The system includes a base unit in the form of several surfaces equipped with energy transmitters that create an alternating magnetic field, a coil or any type of current-carrying wires grouped in a grid, as well as energy receiving devices, each of which contains a power control circuit and a receiving coil. Each charging device is located on the surface of the charging device so that its receiving coil is located in one of the active zones and is connected to the transmitting coil. The active zones in which the devices are being charged are located one above the other in the base unit, which reduces the dimensions of the charger. However, the known technical solution is characterized by high structural complexity and has a limited scope.

A device for battery support of mobile electronics is known [patent No. RU 174285 U1, IPC H02J7 / 00, date publ. 10.10.2017], containing a charging module with connectors for connecting a group of battery packs, each of which contains a battery, a functional controller, an indicator, a connector for connecting to a charging module and a connector for connecting a charged battery pack to a rechargeable mobile electronic device. The charging module is connected to a direct or alternating current network, thereby providing power to the connectors installed on it for connecting battery packs. To charge the battery pack, it is placed on the charging module so that contact is formed between the connectors on the charging module and on the battery pack. At the same time, one or more battery packs may be charged. To charge the mobile electronic device, disconnect the battery pack from the charging module and connect the mobile electronic device to the battery pack via cable. The design of the charging module (charging station) provides for the connection of each rechargeable battery pack to its individual connector of the charging module, which leads to increased overall dimensions of the charging module, as well as design complexity

A known charging system of rechargeable batteries (accumulators) [patent No. US 6396242 B2 "Battery charging and discharging system", IPC H02J7 / 00, H01M10 / 44, date publ. application 01/13/2002] containing a charging station and rechargeable batteries (batteries). The charging station is equipped with individual charging cells in which the batteries are installed. The configuration of the cell corresponds to the shape of the battery and the geometry of its charging contacts. However, the known technical solution is characterized by large overall parameters due to the implementation of separate cells for each charging device.

As a technical solution (prototype), the closest in combination of essential features to the claimed charging system, the charging system is described in patent No. RU 173987 U1 “Charger for Sonet PCM wireless microphone” [IPC H02J7 / 00, date publ. 09/25/2017]. The charging system is a charging device (charging station) containing a case (case), which contains a charging group of 12 charging cells, and radio-electronic devices installed in the cells - receivers and transmitters (transceivers). The receivers and transmitters installed in the cells are in contact (in contact, closed) with their contacts with the contact elements (contacts) of the charging cells. Each cell is equipped with its own charge indicator. The input connector is made in the housing. Radio-electronic devices installed in the charging cells (transmitters and receivers) are connected indirectly by electronic communication with the input connector, fuse, mains switch, power supply located in the second part of the housing.

 The case is placed on a horizontal surface, connect the network cable connector to the input connector in the housing of the charging station (charger) and the network cable plug to a power outlet (220V, 50Hz), turn on the charging station (charger), after which the charging of the batteries of the electronic devices ( receivers and transmitters) installed in charging cells. After charging, the receivers and transmitters are prepared for use, for example, in the training process or excursion service.

However, it should be noted that the implementation of the charging system, including a charging station with charging cells, each of which is designed to accommodate one electronic device, causes an increase in the overall parameters of the charging station, including an increase in the surface area required to accommodate the charging station. In addition, a large number of charging cells complicates the design of the charging station, which is part of the charging system.

As a technical solution (prototype), the closest in terms of essential features to the claimed electronic device, we propose a radio electronic device (receiver / transmitter), which is part of the Radio Guide equipment set [web address: http: //www.radio- guide.ru/uploads/files/product/manual/radioguide_rg07_user_manual_ru.pdf, “Radio Guide. User manual ”], comprising a housing, on the side of which a socket for an electrical connector for connecting a plug of a charger is formed. The housing has a battery compartment in which the batteries (rechargeable batteries) are installed. Batteries are installed in accordance with the indicated polarity of the contacts.

Rechargeable batteries (accumulators) of electronic devices are charged as part of the charging system, which includes a charger (charging station), which has 20 plugs (sockets) for connecting charged devices, and electronic devices, each of which is connected to the charger through its own plug. The charger (charging station) is connected to the power supply unit (direct current source) through an appropriate connector. When the power supply is connected to a 220 V, 50 Hz network, charging of the batteries (rechargeable batteries) of electronic devices begins. It is indicated that the fully charged AAA battery with a capacity of 850 mAh is 9 hours.

The known charger (charging station) provides for vertical placement on the wall, which requires additional installation devices.

The implementation of the known charging system and electronic device provides for the possibility of simultaneous charging of batteries of electronic devices only when each device is individually connected to the charging station (through an individual charging wire with a plug), which increases the overall dimensions of the charging system and also complicates its design. In addition, there is a high probability of contact wire breaking, which reduces the reliability of the system. It should also be noted that the implementation of the connector of the electronic device for connecting the plug of the charger (charging station) does not provide for the possibility of directly connecting the charging contacts of the devices to each other.

The technical result, which is achieved by the claimed group of inventions, is to reduce the surface area required to accommodate a charging system (charging station with rechargeable electronic devices) while simplifying the design of the charging station and the charging system as a whole.

To achieve the above technical result, a radio electronic device and a charging system for simultaneously charging rechargeable batteries of two or more electronic devices are proposed.

The electronic device comprises a housing, a rechargeable battery located in the housing, two pairs of contacts. One pair of contacts is connected to the positive pole of the rechargeable battery, and the second pair of contacts is connected to the negative pole of the rechargeable battery, with one contact from each pair brought out from one side of the housing surface and one contact from each pair brought out from the opposite side of the housing surface so that on the opposite sides of the surface of the case two contacts are output, one of which is connected to the positive pole of the rechargeable battery, and the second is connected to the negative th pole of the rechargeable battery. In this case, two contacts associated with the same pole are located opposite each other on opposite sides of the surface of the housing.

A charging system for simultaneously charging rechargeable batteries of at least two of the above electronic devices comprises a charging station and electronic devices. The charging station is equipped with contacts brought out from the side of its upper working surface. The contacts of the charging station are configured to be connected to a direct current source. Radio-electronic devices are located in such a way that one radio-electronic device is placed on the upper, working, surface of the charging station, the contacts of which, brought out from the side of the lower surface of the housing facing the upper, working, surface of the charging station, are closed to the contacts of the charging station. Each subsequent electronic device is placed on the previous electronic device in such a way that the contacts brought out from the side of the lower surface of the casing of the upper electronic device are closed to the contacts brought out from the upper surface of the casing of the lower electronic device, while the rechargeable batteries of the electronic devices are connected in parallel.

The proposed implementation of electronic devices to be charged as part of the proposed charging system, in which the contacts of each electronic device associated with the poles of its rechargeable battery are brought out from opposite sides of the housing surface as described above, which allows the simultaneous charging of rechargeable batteries of several electronic devices when installing devices on top of each other, i.e. when placing devices “in a stack” on a charging station. In this case, a parallel connection is made for rechargeable batteries, at which the voltage at the contacts connected to the battery poles of each of the charged devices remains unchanged regardless of the number of simultaneously charged devices, which allows multiple devices to be charged simultaneously, without exceeding the ranges of the maximum allowable electrical parameters of the infected devices and charging system. Also, a parallel connection ensures that the charge time of the devices does not depend on the number of charged devices.

Since, according to the proposed embodiment of the charging system, directly on the working surface of the charging station (the surface onto which the contacts of the charging station are connected) is located, as described above, one rechargeable electronic device, and each subsequent electronic device is located on an already installed previous device, then, compared with the prototype (in which in one charging cell provides for the placement of charging only one rechargeable device, and the number of charging cells corresponds the maximum possible number of simultaneously charged devices), the proposed implementation of a charging system containing a charging station and electronic devices, significantly reduces the overall characteristics of the charging station and the charging system as a whole while simplifying the design.

Thus, when using the claimed group of technical solutions (the proposed implementation of the electronic device and the charging system for simultaneously charging rechargeable batteries of at least two electronic devices) due to the possibility of placing on the working surface of the charging station several rechargeable electronic devices “in a pile” for simultaneous charging of batteries, it is ensured reduction in surface area required to accommodate a charging system including a charging station mounted thereon for simultaneous charging of electronic devices. Also, due to the refusal to perform many charging cells, each of which provides for the placement of only one rechargeable device, the design of the charging station, and therefore the charging system as a whole, is simplified.

In the electronic device, the contacts brought out from one side of the surface of the housing can be made in the form of pads, and the contacts brought out from the other, opposite side of the surface of the body can be made in the form of protruding elements. In this case, the contacts made in the form of pads can be made with flat contact surfaces, and the contacts made in the form of protruding elements can be spring-loaded pins. This contact design is aimed at simplifying the design of the electronic device. For the implementation of the proposed design, for example, contacts (contact sockets) of the “pogo pin” type can be used [web pages: https://en.wikipedia.org/wiki/Pogo_pin; http://www.platan.ru/news/PogoPin.shtml].

The direct current source of the charging system may be a power supply unit configured to be connected to the mains, since most often a 220-volt, 50 Hz mains is used for charging.

It is also possible to perform in which the DC source is an external battery (for example, a power bank or another). The need to use an external battery as a constant current source of the charging system may arise, for example, in the absence of a power supply, which ensures the autonomy of the charging system.

The charging station and each of the electronic devices can be equipped with magnets mounted in such a way that they provide mutual clamping of contacts (i.e. in contact with each other) that are closed to each other. The proposed implementation is aimed at a more reliable contact closure, which can be especially relevant, in particular, when making spring contacts (of the “pogo pin” type).

On the upper and lower surfaces of each electronic device, positioning elements can be made to enable mutual positioning of neighboring electronic devices, while the positioning elements are a protrusion-groove pair and are made on the surfaces of adjacent electronic devices facing each other. The proposed implementation is aimed at ensuring the fixation of the position of electronic devices when they are installed in the charging station on top of each other, which also provides a more reliable contact closure.

Graphic materials contain a schematic representation of an example of a specific implementation of the charging system and the electronic device (transceiver included in the set of equipment for excursion service).

FIG. 1 contains a general view of a radio electronic device, namely, a transceiver included in a set of equipment for excursion service.

FIG. 2 contains a front view of an electronic device.

FIG. 3 contains a side view (section AA) of an electronic device.

FIG. 4 contains an example of making contacts associated with the poles of a rechargeable battery, namely, a pogopin spring contact.

FIG. 5 contains a schematic illustration of a charging system.

FIG. 6 contains a schematic illustration of a charging station.

FIG. 7 contains an example embodiment of a charging system in which rechargeable electronic devices are housed in a container.

As an example of the implementation of the electronic device, a transceiver is provided, which is included in the set of excursion equipment and operates in the frequency range 2.4-2.483 GHz (Fig. 1).

The electronic device (transceiver shown in Fig. 1) contains a housing 1 having a front 2 and rear 3 side of the surface. The case has a plan in rectangular shape with rounded corners. An electronic circuit board (not shown in FIG.) Is placed in the housing, including a control microcontroller. The radio electronic device also contains elements of the transmit-receive path associated with the electronic board, an audio jack, a microphone, control buttons, and an LED indicator. The control buttons are located on the front side 2 of the housing 1.

A rechargeable battery 4 is located in the housing 1 of the electronic device, namely, a 920 mAh rechargeable battery (battery) having a positive (“+”) 5 and a negative (“-”) 6 pole.

The electronic device contains two pairs of contacts implemented in the considered example by means of a two-pin spring contact 7 “Pogopin” (contact group) passing through the housing 1 in such a way that flat contact pads 8, 9 are brought out from the front side of the housing surface, and from the back side 3 of the housing surface, spring-loaded contact pins 10, 11 are brought out. Moreover, one pin of the contact group 7 comprises a contact pad 8 and a spring-loaded contact pin 10 (associated with a positive field 5 th battery 4) rechargeable, and the second pin contact group 7 comprises a contact pad 9, and a spring loaded pin 11 (connected to the negative pole 6 of a rechargeable battery 4). The contact surfaces (contacts) of each pair associated with one pole of the battery 4 are located opposite each other on opposite sides of the case, so that when the transceivers are installed on each other (for charging as part of the charging system), the contacts outward from the back of the upper case devices, were located in response opposite the contacts brought out from the front side of the lower device body, and thus had the ability to short circuit (contact) to each other. It is also possible to make other contacts associated with the poles of the rechargeable battery and providing the possibility of charging it.

Inside the case 1 of the transceiver there are three magnets 12 (located at the vertices of the triangle covering the contact group 7), the plus poles of the magnets are facing the front of the case, the minus poles are facing the back of the case.

When charging electronic devices placed on top of each other (“in a stack”), the magnets 12 provide additional force to press the spring-loaded contact pins of the upper electronic device to the contact pads of the lower electronic device, i.e. magnets compensate for the pushing force of the pins from the spring contact pads, regardless of the number of electronic devices mounted on top of each other. This ensures reliable clamping (closing) of the contacting contact surfaces (pads and pins) during charging.

On the front side 2 of the housing 1 there are three control buttons 16. On the back side 3 of the housing 1 there are three recesses 14 of the “groove” type. The buttons 16 correspond to the location of the recesses 14 and perform the functions of the protrusions corresponding to the recesses 14 of the adjacent electronic devices when they are placed in a stack when charging.

The recesses ("grooves") 14 are located opposite the control buttons ("protrusions") 16 from opposite sides of the case, since when placing on each other ("in a stack") of electronic devices the control buttons ("protrusions") 16 of the lower device must enter recesses ("slots") 14 of the upper device, providing additional fixation of the position of electronic devices (their contacts) and a more reliable contact closure during charging of rechargeable batteries of electronic devices.

In FIG. 5 shows an example embodiment of a charging system that includes a charging station 18 and electronic devices R1, R2, R3, R4.

The contacts 20 of the charging station 18 (Fig. 6) are brought out from the side of the working surface 21 of the charging station 18. In the charging station 18, a DC connector 22 is made for connecting a direct current source, which is used as a standard power supply 23. Thus, the contacts 20 charging station 18 are connected to the power supply 23 through a DC-connector 22. The power supply has the ability to connect to the mains (220V, 50Hz). As the power supply 23 can be used, for example, a standard power supply Gs25u05 manufactured by Mean Well.

Radio-electronic devices (transceivers R) are installed in the charging station as follows. The first radio electronic device R1 is located directly on the working surface 21 of the charging station 18 (the device is located face up 2, back 3 down), while its protruding spring-loaded contact pins 10, 11 are closed to the contacts (contact pads) 20 of the charging station 18, output on its working (upper) surface 21. The second electronic device R2 is located on the previous device R1 so that the spring-loaded contact pins 10, 11, derived from the lower (back) side of the surface of the housing troystva R2, are closed on the contact pads 8, 9, outputted from the top (obverse) side surface of the unit case R1. Next, each subsequent electronic device is placed on the previous device in a similar way. In this case, rechargeable batteries 4 of the electronic devices R are connected in parallel (via contact groups 7), which ensures a constant charge time regardless of the number of charged devices.

Charging station 18 is equipped with magnets 24 mounted similarly to magnets 12 of electronic devices.

When installing electronic devices in a stack on the working surface 21 of the charging station 18, the magnets 12 of the electronic devices R (as described above) and the magnets 24 of the charging station 18 provide an increase in the reliability of the pressing (closing) of the contacting contact surfaces (pads and pins).

Thanks to the positioning elements 14, 16, made in the housings of electronic devices and forming a pair of "protrusion-groove" when installing each other electronic devices on the working surface of the charging station, it is provided, as described above, additional fixation of the position of the placed devices and a more reliable closure electrical contacts.

To provide a more reliable fixation of the position of the charged electronic devices made in the same housings, at the charging station 18, the electronic devices R can be pre-stacked in a hollow container 25 (as shown in Fig. 7), the internal cavity of which in cross section corresponds to the shape of the device case (in plan) and allows you to place a stack of electronic devices R inside the container 25. In the shown in FIG. 7 example, the container 25 has a hollow body formed by four vertically oriented walls, a base and an upper restrictive plate connected to the upper edge of one of the walls and located from the upper edges of the other walls at a distance exceeding one thickness of the housing of the radio receiver (container elements with separate positions in FIG. not indicated). The container body in cross section has an open circuit. To fix the position of the container on the working surface of the charging station, a restrictive collar 26 is made. The rechargeable transceivers R installed by the stack 25 in the container 25 are placed on the working surface 21 of the charging station 18 (as described above), while the base of the container is made in such a way that unhindered interaction (circuit) of the contacts 20 of the charging station 18 and the contacts of the transceiver R1. In addition, the container 25 can also be used to place electronic devices in it for the purpose of their storage and transportation (carrying).

The simultaneous charging of rechargeable batteries of two or more electronic devices as part of the charging system is as follows.

The electronic devices R are mounted on the charging station 18 as described above: on the working surface of the charging station there is a first radio electronic device R1, while the contacts of the device R1 and the charging station are connected. Next, on the device R1, a second electronic device R2 is located, etc. The contacts of the electronic devices R associated with the poles of the rechargeable batteries 4 are connected (closed), forming a parallel connection of rechargeable batteries (batteries).

Through the DC connector 22 of the charging station 18, the power supply 23 is connected, and the power supply is included in the power supply network 220V, 50Hz. Thus, while in charging mode, the charging system is connected to the supply voltage through the power supply.

The voltage is supplied through the DC connector 22 to the contacts 20 of the charging station 18 and through the contact groups 7 of the electronic devices R is supplied to the rechargeable batteries 4. Thus, the charging process of the rechargeable batteries (batteries) 4 of each electronic device R.

The transceiver usually contains an LED indicating the charge mode.

Usually it takes no more than 10 hours to fully charge these batteries (provided they are fully discharged).

Thus, the proposed implementation of the electronic device and the charging system, designed to simultaneously charge rechargeable batteries of two or more of these electronic devices, provides the ability to install on the charging station of electronic devices "in a stack" on each other while providing electrical contact of contact groups of neighboring devices, which allows in comparison with the prototype, minimize the overall dimensions (in terms of) of the charging station, and therefore reduce the horizontal area on the surface occupied by the charging station with electronic devices installed on it, i.e. charging system as a whole. In addition, the proposed implementation, in which rechargeable electronic devices are placed vertically on top of each other in a stack on the working surface of the charging station, eliminates the need for multiple individual charging cells, each of which provides for the placement of only one rechargeable device, which simplifies the design of the charging device station, and therefore the charging system as a whole.

Claims (8)

1. Radio-electronic device, characterized in that it contains a housing; rechargeable battery housed in a housing; two pairs of contacts, with one pair of contacts connected to the positive pole of the rechargeable battery, and the second pair of contacts connected to the negative pole of the rechargeable battery, with one contact from each pair brought out from one side of the housing surface and one contact from each pair brought out on the opposite side of the surface of the housing in such a way that on the opposite sides of the surface of the housing two contacts are output, one of which is connected to the positive pole of the rechargeable battery the second is connected to the negative pole of the rechargeable battery; however, two contacts associated with the same pole are located opposite each other. 2. The electronic device according to claim 1, characterized in that the contacts brought out from one side of the housing surface are made in the form of pads, and the contacts brought out from the other, opposite side of the housing surface are made in the form of protruding elements. 3. The electronic device according to claim 2, characterized in that the contacts made in the form of pads have flat contact surfaces, and the contacts made in the form of protruding elements are spring-loaded pins. 4. A charging system for simultaneously charging rechargeable batteries of at least two electronic devices according to claim 1, characterized in that it comprises a charging station and electronic devices; the charging station is equipped with contacts brought out from the side of its upper working surface; the contacts of the charging station are configured to be connected to a direct current source; electronic devices are located in such a way that one electronic device is placed on the upper, working, surface of the charging station, the contacts of which, brought out from the side of the lower surface of the housing facing the upper, working, surface of the charging station, are closed to the contacts of the charging station, and each subsequent the electronic device is placed on the previous electronic device so that the contacts brought out from the side of the lower surface of the upper radio ics devices closed on contacts outputted outward from the top surface of the lower electronic device, the electronic devices rechargeable batteries connected in parallel. 5. The charging system according to claim 4, characterized in that the constant current source is a power supply unit configured to connect to the mains. 6. The charging system according to claim 4, characterized in that the DC source is an external battery. 7. The charging system according to claim 4, characterized in that the charging station and each of the electronic devices are equipped with magnets mounted in such a way that they provide mutual clamping of contacts closed to each other. 8. The charging system according to claim 4, characterized in that on the upper and lower surfaces of each electronic device positioning elements are made that enable mutual positioning of adjacent electronic devices, while the positioning elements are a pair of "protrusion-groove" and are made on the inverted to each other the surfaces of adjacent electronic devices.

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