CN111371203B - Long-distance charger and long-distance charging system - Google Patents

Abstract

The present invention relates to the field of long-distance charging technology, and specifically discloses a long-distance charger and a long-distance charging system, wherein the long-distance charger includes an energy converter, a locator and a battery; the locator is at a set distance from the energy converter, and the real-time position information of the long-distance charger is obtained and sent; the energy converter includes: a shell, which is a shell with a hollow charging cavity, and an energy collection hole for receiving energy signals is provided on the side wall of the shell; an energy conversion array is located in the charging cavity, receives energy signals and converts them into electric energy; a conductive transmission line is connected between the energy conversion array and the battery, and conducts electric energy to the battery in one direction. The long-distance charger and the long-distance charging system of the present invention can realize ultra-long-distance real-time charging, do not need to be equipped with large-size batteries, reduce load and cost, and are suitable for equipment with long-term endurance requirements such as drones and unmanned ships.

Description

Remote charger and remote charging system

Technical Field

The invention relates to the technical field of remote charging, in particular to a remote charger and a remote charging system.

Background

With the popularization of electronic products and the explosive growth of electric vehicles, wireless charging can overcome the problems of beautiful appearance, cost, limited charging distance and the like of the traditional cable type charging, and the wireless charging is a technology which is gradually becoming an urgent requirement. Currently, wireless charging technologies including those issued by samsung, hua-ji, apple, etc. are based on faraday electromagnetic induction principles. The power receiving coil can generate induced current by supplying alternating current with a certain frequency to the power transmitting coil so as to generate a magnetic field with continuously changing magnetic flux, and then the induced current is shaped, so that the battery can be charged. The power transmitting coil and the power receiving coil need only be aligned with each other and do not directly contact, and are thus named wireless charging.

The field of wireless charging explosive growth is equipment with long-time endurance requirements such as unmanned aerial vehicles, unmanned vessels and the like, but because the equipment is limited in load and cannot carry large-scale batteries and energy sources, a wireless charging technology is needed how to realize real-time charging in real-time endurance. However, in the wireless charging technology based on the faraday electromagnetic induction principle, only some short-distance wireless charging can be realized, the distance between the power transmission coil and the power receiving coil is not too long, and is generally about 0.9-1.2 m, otherwise, the magnetic leakage problem can occur, the magnetic field utilization rate is low, the charging efficiency is low, and the radiation problem can also occur. Furthermore, these devices with long-time continuous endurance requirements, such as unmanned aerial vehicles and unmanned vessels, are generally far away from the charging device during the movement process, and most of the devices are far away from the charging device by a distance of more than 1.2 meters, and may change their positions at any time, so that it is difficult to realize the long-distance wireless charging requirements through the conventional electromagnetic induction wireless charging, and therefore, a long-distance wireless charging scheme needs to be designed to solve these problems.

Disclosure of Invention

Aiming at the technical problems in the prior art, the invention provides a remote charger and a remote charging system.

The invention provides a remote charger, comprising,

An energy converter, a positioner and a storage battery, wherein,

The locator is positioned at a set position distance from the energy converter, and is used for obtaining and transmitting real-time position information of the remote charger;

The energy converter comprises a shell, an energy conversion array and a conductive transmission line, wherein the shell is provided with a hollow charging cavity, an energy acquisition hole for receiving energy signals is formed in the side wall of the shell, the energy acquisition hole is used for receiving the energy signals and transmitting the energy signals fed back based on real-time position information to the energy conversion array, the energy conversion array is positioned in the charging cavity and used for receiving the energy signals and converting the energy signals into electric energy, and the conductive transmission line is connected between the energy conversion array and a storage battery and used for conducting the electric energy to the storage battery in a unidirectional mode.

Further, the shell is a metal shell and the conductive transmission line comprises an anode transmission line and a cathode transmission line, wherein the anode transmission line is a metal shell, the energy conversion array is fixed on the inner wall of the metal shell, and the cathode transmission line is a conductive film coated on the surface of the energy conversion array. Further, the inner wall of the metal shell is provided with a groove adjacent to the position of the energy conversion array.

Further, the included angle between the side face and the bottom face of the groove is 60-120 degrees.

Further, the conductive film is a transparent conductive film.

Further, the device also comprises a lens which is arranged on the energy collection hole.

Further, the wireless communication system also comprises a wireless communication module, wherein the wireless communication module is electrically connected with the locator and is used for sending the real-time position information outwards.

The invention also provides a remote charging system, which comprises the remote charger, and

An energy signal generator for generating an energy signal;

The mirror bracket assembly comprises a mirror bracket, a position sensing controller, a control unit and a control unit, wherein the mirror bracket is used for reflecting an energy signal generated by an energy signal generator into an energy collecting hole of a remote charger;

And the controller is connected with the remote charger, the energy signal generator and the mirror bracket component, receives the current state information of the mirror bracket component and sends a state control instruction to the energy signal generator and the mirror bracket component according to the real-time position information.

Further, the mirror bracket comprises a bracket body, a reflecting mirror arranged on the bracket body, a plurality of stepping motors arranged under the bracket body and used for adjusting the angle of the reflecting mirror, and the stepping motors are connected with the position sensing controller.

Further, the method comprises the steps of,

The support body includes the base, installs a plurality of stabilizer blade at the base lower limb to and one end and stabilizer blade screwed connection's screw rod, wherein:

the reflector is arranged on the base;

the other end of the screw rod is fixed on the output shaft of the stepping motor.

The remote charger and the remote charging system can realize the ultra-remote real-time charging without being equipped with a large-size battery, reduce the load and the cost, and are suitable for equipment with long-time endurance requirements such as unmanned aerial vehicles, unmanned ships and the like.

Drawings

For a clearer description of embodiments of the invention or of solutions in the prior art, the drawings which are used in the description of the embodiments or of the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the invention, and that other drawings can be obtained from them without inventive effort for a person skilled in the art.

FIG. 1 is a block diagram of a remote charger according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of the energy converter in the remote charger according to the embodiment of the present invention;

FIG. 3 is a schematic cross-sectional view of an energy converter in a remote charger according to an embodiment of the present invention;

FIG. 4 is a block diagram of a remote charging system according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a remote charging system according to an embodiment of the invention;

fig. 6 is a schematic structural view of a glasses frame in the remote charging system according to the embodiment of the present invention;

The remote charger comprises a 1-remote charger, a 101-energy converter, a 1011-shell, 1012-energy collection holes, 1013-energy conversion arrays, 1014-conductive transmission lines, 1015-grooves, 1016-reverse protection circuits, 102-positioners, 103-storage batteries, 104-wireless communication modules, 2-energy signal generators, 3-mirror bracket components, 301-mirror brackets, 3011-bracket bodies, 3011 a-bases, 3011 b-supporting legs, 3011 c-screws, 3012-reflecting mirrors, 3013-stepping motors, 302-position sensing controllers and 4-controllers.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to fall within the scope of the invention.

The embodiment of the invention relates to a remote charger 1, as shown in fig. 1 to 3, comprising an energy converter 101, a positioner 102 and a storage battery 103, wherein the positioner 102 is positioned at a set position distance from the energy converter 101 to obtain real-time position information of the remote charger 1 and transmit the real-time position information, the energy converter 101 comprises a shell 1011 which is a shell provided with a hollow charging cavity, an energy collecting hole 1012 which is arranged on the side wall of the shell and is used for receiving energy signals, receiving the energy signals fed back based on the real-time position information and transmitting the energy signals to an energy conversion array 1013, the energy conversion array 1013 is positioned in the charging cavity and is used for receiving the energy signals and converting the energy signals into electric energy, and a conductive transmission line 1014 which is connected between the energy conversion array 1013 and the storage battery 103 and is used for conducting the electric energy to the storage battery 103 in a unidirectional mode.

The specific medium of the energy signal converted into electric energy by the energy converter 101 is not limited in the embodiment of the present invention, and only needs to meet the requirement of long-distance transmission in the present scheme. Taking laser as an example, the laser has the characteristics of concentrated energy transmission and long transmission distance, and the corresponding energy conversion array 1013 should be a product for converting laser into electric energy, such as a photovoltaic cell. The embodiment of the invention uses laser as an energy signal to explain the whole scheme, but it should be understood that other implementation schemes corresponding to energy media meeting the requirement of remote charging of the scheme also belong to the protection scope of the invention.

For the locator 102, embodiments of the present invention can be implemented by GPS technology. The locator 102 can acquire real-time position information of itself, and can indirectly acquire real-time position information of the energy converter 101 and simultaneously transmit the real-time position information to the outside because of a set position distance from the energy converter 101.

Fig. 2 is a schematic structural diagram of the energy converter 101 of the present embodiment, and fig. 3 is a schematic sectional diagram of the energy converter 101 of the present embodiment. The laser in this embodiment is an energy signal fed back according to the real-time position information of the positioner 102, so the laser can be injected from the energy collecting hole 1012 on the side wall of the housing 1011, the energy conversion array 1013 in the hollow charging cavity of the housing 1011 converts the light energy of the laser into electric energy through the photoelectric effect or photochemical effect, the electric energy is unidirectionally conducted to the storage battery 103 by the conductive transmission line 1014, and the storage battery 103 realizes the storage of the electric energy.

The storage battery 103 in this embodiment is used for storing the electric energy converted by the energy converter 101, so that the power consumption requirement of the remote charger 1 in this embodiment is satisfied, for example, the power is supplied to the locator 102, so that the locator 102 can generate real-time position information of the remote charger 1. The storage battery 103 in this embodiment is preferably implemented by using a lithium battery with excellent performance, and the battery capacity of the storage battery 103 is selected according to the specific use environment.

The remote charger can realize ultra-remote real-time charging without a large-size battery, reduces load and cost, and is suitable for equipment with long-time endurance requirements such as unmanned aerial vehicles, unmanned ships and the like.

Specifically, the housing 1011 according to the embodiment of the present invention is a metal housing, and the conductive transmission line 1014 includes an anode transmission line and a cathode transmission line, the anode transmission line is a metal housing, the energy conversion array 1013 is fixed on the inner wall of the metal housing, and the cathode transmission line is a conductive film coated on the surface of the energy conversion array 1013. The conductive transmission line 1014 in this embodiment employs a metal case and a conductive film as an anode and a cathode, respectively, and the energy conversion array 1013 converts the energy signal into electric energy, and then transmits the electric energy to the battery 103 for storage through the metal case and the conductive film. When the energy signal is laser, a plurality of photovoltaic cells are used as the energy conversion array 1013, the conductive film is used for collecting electrons of the photovoltaic cells excited by the laser, and the conductive film is used as a cathode, and the metal shell is used as an anode.

In the embodiment of the invention, the material of the metal shell is not specifically limited, and the metal shell can be made of an aluminum material with lighter weight, and the embodiment is not specifically limited to the specific shape of the metal shell, and can be designed into a cuboid as shown in fig. 2 or a prism with other shapes. The position where the energy collection hole 1012 is provided in the present invention is not particularly limited, and the energy collection hole 1012 may be provided at any position on any side of the metal casing, and the shape of the energy collection hole 1012 is preferably circular. In order to improve the photoelectric conversion efficiency, a plurality of photovoltaic cells in the embodiment are arranged in an array, all the photovoltaic cells are connected in parallel, the cathodes of the photovoltaic cells are electrically connected with the conductive film, and the anodes of the photovoltaic cells are electrically connected with the metal shell. The conductive film in this embodiment may be implemented by a transparent conductive film, such as an ITO thin film or a nano-silver film.

Specifically, as shown in fig. 3, the inner wall of the metal housing of the embodiment of the present invention is provided with grooves 1015 adjacent to the energy conversion arrays 1013. To reduce the reflection of the energy signal into the metal housing and out of the energy harvesting holes 1012, grooves 1015 are provided around the perimeter of the energy conversion array 1013 in embodiments of the invention. Preferably, the included angle between the side surface and the bottom surface of the groove 1015 is 60-120 degrees, so as to adjust the reflection angle of the laser in the metal shell, and realize the maximum conversion of the photovoltaic cell to the light energy. Furthermore, in order to reduce the leakage of the laser, the inner wall of the metal shell opposite to the energy collection hole 1012 has a wedge angle with a certain angle, so that the laser can be dispersed when the laser is vertically injected, and the laser is prevented from being directly reflected and emitted out of the energy collection hole 1012.

Specifically, the energy converter 101 of the present embodiment further includes a lens mounted on the energy harvesting hole 1012. The lens in this embodiment can be a convex lens or a concave lens, so as to achieve divergence of laser, and further reduce leakage of laser, and improve charging efficiency.

Specifically, as shown in fig. 1, the remote charger 1 according to the embodiment of the present invention further includes a wireless communication module 104, where the wireless communication module 104 is electrically connected to the locator 102, and sends out real-time position information.

The wireless communication module 104 is also electrically connected with the battery 103, and the battery 103 supplies power to the wireless communication module 104. The wireless communication module 104 in this embodiment is configured to perform wireless communication with an external device, where the wireless communication module 104 in this embodiment is mainly configured to send real-time position information generated by the locator 102, so that other external devices can obtain a specific position of the remote charger 1 in this embodiment. Preferably, the wireless communication module 104 of the embodiment of the present invention may also send the electricity storage information of the remote charger 1 to other external devices, or receive some control instructions sent by the external devices, and specifically, the working purpose and the electricity consumption requirement of the remote charger 1 may be visible, which is not limited herein.

Specifically, as shown in fig. 1, the energy converter 101 according to the embodiment of the present invention further includes a reverse protection circuit 1016, where the reverse protection circuit 1016 includes a unidirectional high-power diode. The positive input of the reverse protection circuit 1016 is electrically connected to the metal housing and the negative input of the reverse protection circuit is electrically connected to the conductive film to define the flow direction of the current. When the remote charger 1 includes the reverse protection circuit 1016, the positive electrode and the negative electrode of the battery 103 are connected to the positive electrode and the negative electrode of the output terminal of the reverse protection circuit 1016, respectively. The capacity of the storage battery 103 is configured according to the endurance requirement of the electric equipment where the remote charger 1 is located, and the electric equipment in this embodiment may be an unmanned plane, an unmanned ship, a submarine, or the like.

The invention also provides a remote charging system, as shown in fig. 4 and 5, comprising the remote charger 1 and the energy signal generator 2 for generating energy signals, at least one mirror bracket component 3, wherein the mirror bracket component 3 comprises a mirror bracket 301 and a position sensing controller 302, the mirror bracket 301 reflects the energy signals generated by the energy signal generator 2 into an energy acquisition hole 1012 of the remote charger 1, the position sensing controller 302 is connected with the mirror bracket 301 for sensing and transmitting the current state information of the mirror bracket 301 and receiving state control instructions and controlling the state of the mirror bracket 301, and the controller 4 is connected with the remote charger 1, the energy signal generator 2 and the mirror bracket component 3 for receiving the current state information of the mirror bracket component 3 and transmitting the state control instructions to the energy signal generator 2 and the mirror bracket component 3 according to the real-time position information.

When the energy signal in the remote charger 1 is laser, the corresponding energy signal generator 2 is a laser, and the controller 4 sends a state control instruction to the laser according to the real-time position information, for example, controls the start and the stop of the laser, controls the power of the laser emitted by the laser, and the like. The controller 4 is connected to the mirror holder assembly 3, and is configured to send a status control command to the mirror holder assembly 3, and the position sensing controller 302 in the mirror holder assembly 3 receives the status control command and controls the status of the mirror holder 301, for example, adjusts the position of the mirror holder 301, so as to achieve that the laser transmission path is adjusted to be smoothly injected from the energy collecting hole 1012.

The controller 4 in this embodiment is connected to the remote charger 1, the energy signal generator 2 and the frame assembly 3, and the connection mode in this embodiment is communication connection, i.e. wired connection or wireless connection capable of realizing information interaction. Taking the example that the remote charger 1 is applied to an unmanned aerial vehicle, if the unmanned aerial vehicle flies in the air and the distance between the energy signal generator 2 and the mirror bracket assembly 3 is far, the mirror bracket assembly 3 is preferably arranged on a roof, a mountain roof or a satellite, and wireless communication is carried out between the mirror bracket assembly 3 and the controller 4.

The laser in this embodiment is used to generate an energy signal, such as laser light, whose output power should be dependent on the damage resistance of the photovoltaic cells in the remote charger 1. The laser in this embodiment should be a continuous or quasi-continuous laser with a wavelength of 10164nm or less and an output power in the range of 0.1W to 10W.

In this embodiment, at least one of the frame assemblies 3 is provided, and preferably, as shown in fig. 5 and 6, the present embodiment includes two frame assemblies 3, wherein the first frame assembly 3 is installed near the energy signal generator 2, and reflects the energy signal emitted from the energy signal generator 2 to the second frame assembly 3, and the second frame assembly 3 is installed on the roof or the mountain top, and reflects the energy signal reflected from the first frame assembly 3 into the housing 1011 of the remote charger 1. The controller 4 adjusts the azimuth angle of the second frame 301 according to the real-time position information of the remote charger 1, and then adjusts the transmission path of the energy signal.

Specifically, the frame 301 includes a frame 3011, a mirror 3012 mounted on the frame 3011, and a plurality of stepper motors 3013 mounted under the frame 3011 for adjusting an angle of the mirror 3012, where the stepper motors 3013 are connected to a position sensing controller 302. The position sensing controller 302 controls the operation state of the stepping motor 3013 by means of state control instructions. The stepping motor 3013 of the present embodiment may be replaced by a voice coil motor, piezoelectric ceramics, or the like, and is specifically determined by the distance range to be adjusted, cost, and the like. The stepping motor 3013 in this embodiment adjusts the azimuth angle of the frame 3011 by its rotation, and the azimuth angle of the mirror 3012 mounted on the frame 3011 is changed in synchronization, thereby realizing adjustment of the energy signal transmission path.

Specifically, as shown in FIG. 6, the frame 3011 comprises a base 3011a, a plurality of supporting legs 3011b arranged at the lower edge of the base 3011a, and a screw 3011c with one end spirally connected with the supporting legs 3011b, wherein a reflecting mirror 3012 is arranged on the base 3011a, and the other end of the screw 3011c is fixed on an output shaft of a stepping motor 3013.

The stepping motor 3013 rotates to drive the screw 3011c to synchronously rotate, so that the distance between the screw 3011c and the support leg 3011b is changed, and the height of the support leg 3011b at the position of the base 3011a is adjusted. In the embodiment of the present invention, the number of the supporting legs 3011b is consistent with the number of the stepping motors 3013, and the number of the supporting legs 3011b in the embodiment should be selected according to the shape of the base 3011a, for example, the base 3011a is quadrangular, then one supporting leg 3011b can be respectively installed below the vertex position of the quadrangle, then four stepping motors 3013 are correspondingly installed through four screws 3011c, and the four stepping motors 3013 respectively rotate for a specific number of turns, so that the adjustment of the azimuth angle of the base 3011a can be realized.

As shown in fig. 6, for the screw connection between the leg 3011b and the screw 3011c, a blind threaded hole is formed in the leg 3011b, the blind threaded hole is parallel to the direction of the leg 3011b, and the screw 3011c is screwed into the blind threaded hole. The invention can also be implemented by providing threaded through holes in the legs 3011b, and only adjusting the height of the base 3011a in the direction of the screw 3011c, which is not an example of a specific implementation.

The remote charger and the remote charging system can realize the ultra-remote real-time charging without a large-size battery, reduce the load and the cost, and are suitable for equipment with long-time endurance requirements such as unmanned aerial vehicles, unmanned ships and the like.

The invention has been further described with reference to specific embodiments, but it should be understood that the detailed description is not to be construed as limiting the spirit and scope of the invention, but rather as providing those skilled in the art with the benefit of this disclosure with the benefit of their various modifications to the described embodiments.

Claims (7)

1. A remote charger is characterized by comprising an energy converter, a positioner and a storage battery, wherein,

The locator is separated from the energy converter by a set position distance, and is used for locating to obtain and send real-time position information of the remote charger;

The energy converter comprises a shell, a power supply device and a power supply device, wherein the shell is a shell provided with a hollow charging cavity, an energy acquisition hole for receiving energy signals is arranged on the side wall of the shell, and the energy acquisition hole is used for receiving the energy signals fed back based on the real-time position information and transmitting the energy signals to an energy conversion array; the energy conversion array is positioned in the charging cavity, receives the energy signal and converts the energy signal into electric energy, and the conductive transmission line is connected between the energy conversion array and the storage battery and is used for conducting the electric energy to the storage battery in a unidirectional manner;

the shell is a metal shell, and the conductive transmission line comprises an anode transmission line and a cathode transmission line, wherein the anode transmission line is the metal shell, the energy conversion array is fixed on the inner wall of the metal shell, and the cathode transmission line is a conductive film coated on the surface of the energy conversion array;

the inner wall of the metal shell is provided with a groove adjacent to the energy conversion array;

The device also comprises a lens, wherein the lens is arranged on the energy collection hole.

2. The remote charger of claim 1, wherein the recess has an included angle of 60 degrees to 120 degrees between the side and bottom surfaces.

3. The remote charger of claim 1 wherein said conductive film is a transparent conductive film.

4. The remote charger of claim 1, further comprising a wireless communication module electrically coupled to the locator for transmitting the real-time location information.

5. A remote charging system comprising the remote charger of any one of claims 1-4, and

An energy signal generator for generating an energy signal;

At least one mirror bracket component, which comprises a mirror bracket and a position sensing controller; the position sensing controller is connected with the mirror bracket, senses and sends current state information of the mirror bracket, receives a state control instruction and controls the state of the mirror bracket;

And the controller is connected with the remote charger, the energy signal generator and the mirror bracket component, receives the current state information of the mirror bracket component, and sends a state control instruction to the energy signal generator and the mirror bracket component according to the real-time position information.

6. The remote charging system of claim 5, wherein said frame comprises a frame body, a mirror mounted on said frame body, a plurality of stepper motors mounted under said frame body for adjusting the angle of said mirror, said stepper motors being connected to said position sensing controller.

7. The remote charging system of claim 6, wherein said frame comprises a base, a plurality of legs mounted to a lower edge of said base, and a screw having one end threadably connected to said legs, wherein:

the reflector is mounted on the base;

The other end of the screw rod is fixed on the output shaft of the stepping motor.