CN203180655U - Wireless power supply equipment - Google Patents

Abstract

A wireless power supply apparatus includes a power transmitting device and a power receiving device; the power transmission device comprises a power management module, a power storage module and a power wireless transmission module , The power management module comprises a charging interface, a power switch unit and a power amplifier / A voltage reduction unit; the power receiving device comprises a power wireless receiving module, a rectifying module and a power supply interface (ii) a The charging interface is used for connecting an external power supply and is connected with the power storage module; the power storage module sequentially passes through the power switch unit and the power amplifier / The voltage reduction unit is connected with the power wireless transmission module; the power wireless transmission module is used for transmitting power / The voltage reduction unit converts the output power into electromagnetic waves and sends out the converted electromagnetic waves; the wireless power receiving module is used for converting electromagnetic waves from the wireless power transmitting module into alternating current, and the rectifying module is connected with the power supply interface. Above-mentioned utility model makes things convenient for the power supply to give portable electronic equipment.

Description

wireless powered device

technical field

The utility model relates to a wireless power supply device.

Background technique

The current wireless power supply equipment generally includes a power transmitting module and a power receiving module built in a portable electronic device. The power transmitting module wirelessly transmits power to the power receiving module through electromagnetic induction or electromagnetic resonance. This kind of wireless power supply The portable electronic equipment with the power receiving module supplies power, and other electronic equipment without the above-mentioned power receiving module cannot be used, which is relatively inconvenient. In addition, the circuit transmission module of the current wireless power supply equipment must be electrically connected to the mains to provide wireless power supply. If the electrical connection between the power transmission module and the mains is disconnected or a power failure occurs, the power transmission module will Power cannot be sent wirelessly.

Utility model content

Aiming at the deficiencies of the prior art, the purpose of the utility model is to provide a wireless power supply device which is convenient to use.

In order to achieve the above object, the utility model adopts the following technical solutions:

A wireless power supply device, which includes a power sending device and a power receiving device; the power sending device includes a power management module, a power storage module, and a power wireless sending module, and the power management module includes a charging interface, a power switch unit and a step-up/down unit ; The power receiving device includes a power wireless receiving module, a rectifier module, and a power supply interface;

The charging interface is used to connect to the external power supply, and the charging interface is connected to the power storage module to store the power of the external power supply in the power storage module; the power storage module is connected to the power wireless transmission module through the power switch unit and the step-up/down unit in turn; the power switch unit is used for To enable the power storage module to supply/not supply power to the step-up/down unit; the power wireless transmission module is used to convert the power output by the step-up/down unit into electromagnetic waves, and send out the converted electromagnetic waves;

The power wireless receiving module is used to convert the electromagnetic wave from the power wireless transmitting module into alternating current, and the rectifying module is used to convert the alternating current outputted by the power wireless receiving module into direct current, and the rectifying module is connected to the power supply interface to output direct current to the power supply interface , the power supply interface is used to connect portable electronic devices.

The power management module also includes a voltage stabilizing unit and a microprocessor; the power storage module is connected to the microprocessor through the power switch unit and the voltage stabilizing unit in turn; the microprocessor is also connected to the charging interface, the power switch unit, the step-up/down module and the power Wireless sending module.

The power management module also includes a status indicator connected to the microprocessor.

The power sending device also includes a power output interface connected to the step-up/down unit.

The power storage module includes a rechargeable battery and a charging and discharging protection unit connected to the rechargeable battery.

The power transmission device also includes a power transmission shell; the power switch unit is arranged on the top surface of the power transmission shell, the charging interface, the status indicator light and the power output interface are all arranged on the side of the power transmission shell, the voltage stabilizing unit, the step-up/down unit , the microprocessor and the power wireless transmission module are all arranged in the power transmission shell.

The power receiving device also includes a microprocessor module, a resonance feedback module and a voltage stabilizing module; the voltage stabilizing module is connected between the rectifier module and the power supply interface, and the resonance feedback module is connected between the microprocessor module and the power wireless receiving module. The converter is also connected to the output terminals of the rectification module and the voltage stabilization module.

The power receiving device also includes a data interface connected to the microprocessor, and the microprocessor is also connected to the power supply interface.

The power receiving device also includes a power receiving shell, the power receiving shell includes a fixed base and a connecting base; the connecting base is set at one end of the fixed base, the power supply interface is set at one side of the connecting base close to the fixed base, and the data interface is set at the other side of the connecting base On one side, the rectification module, power wireless receiving module, resonance feedback module, voltage stabilizing module and micro-processing module are all arranged in the connection base.

The top surface of the fixed base is provided with a magnetic isolation and wave-absorbing layer, and the end of the fixed base away from the connection base is provided with a fixing piece for fixing portable electronic equipment.

The beneficial effects of the utility model are as follows:

1. The power transmission device is equipped with a power storage module, so that the wireless power supply device can also perform wireless power supply during the moving process, that is, it does not need to be connected to an external power source such as mains at all times, especially suitable for places without mains power such as outdoors, automobiles It can be used in other places, which expands the scope of use and is convenient to use.

2. The power receiving device is provided with a power supply interface for connecting portable electronic devices, so that it can supply power to various portable electronic devices such as mobile phones and digital cameras.

3. The power transmitting device is equipped with a power transmitting shell, and the power receiving device is equipped with a power receiving shell, which is convenient to use and move.

4. The power receiving shell is provided with a fixed base for the portable electronic device to be placed flat. The fixing parts on the fixed base can make the portable electronic device be placed on the fixed base stably, so that even if the power receiving device is moved or carried, it will not affect Portable electronic device charging.

5. The top surface of the fixed base of the power receiving shell is provided with a magnetic isolation and wave-absorbing layer, which can prevent the portable electronic equipment from being interfered by electromagnetic waves.

6. The power receiving device is provided with a data interface. In this way, when the computer is connected to the data interface, the portable electronic device can exchange data with the computer while charging.

7. The power transmission device is provided with a power output interface, and can also provide wired power supply to portable electronic devices, so as to realize diversified power supply.

Description of drawings

FIG. 1 is a block diagram of a preferred embodiment of the wireless power supply device of the present invention.

FIG. 2 is a schematic perspective view of a power transmission device in a preferred embodiment of the wireless power supply device of the present invention.

FIG. 3 is a three-dimensional schematic diagram of a power receiving device in a preferred embodiment of the wireless power supply device of the present invention.

Detailed ways

Below in conjunction with accompanying drawing and specific embodiment, the utility model is further described:

Please refer to FIG. 1 , the utility model relates to a wireless power supply device, and its preferred embodiment includes a power sending device 100 and a power receiving device 200 .

The power transmission device 100 includes a power management module 110 , a power storage module 120 , a power wireless transmission module 150 and a power output interface 130 . The power management module 110 includes a charging interface 115 , a power switch unit 116 , a voltage stabilizing unit 117 , a microprocessor 118 , a step-up/down unit 119 and a status indicator 112 .

The charging interface 115 is used to connect to an external power source such as commercial power, and the charging interface 115 is connected to the power storage module 120 to store the power of the external power source in the power storage module 120 . The power storage module 120 is sequentially connected to the power wireless transmission module 150 and the power output interface 130 through the power switch unit 116 and the step-up/down unit 119, and the power storage module 120 is also connected to the microprocessor 118 through the power switch unit 116 and the voltage stabilizing unit 117 in sequence , the power switch unit 116 is used to enable the power storage module 120 to supply/not supply power to the microprocessor 118 and the step-up/down unit 119 . The microprocessor 118 is connected to the charging interface 115, the power switch unit 116, the step-up/down module 119 and the wireless power transmission module 150 to detect the charging and discharging status of the system. The microprocessor 118 is also connected to the status indicator light 112, so as to drive the status indicator light 112 to visually display the charging and discharging status of the system according to the detected charging and discharging status of the system. The power wireless transmission module 150 is used for converting the power output by the step-up/down unit 119 into electromagnetic waves, and sending out the converted electromagnetic waves. The power output interface 130 is used to connect portable electronic devices to provide wired power to the portable electronic devices.

In this embodiment, the power storage module 120 includes a rechargeable battery and a charging and discharging protection unit connected to the rechargeable battery, and the rechargeable battery may be a lithium polymer rechargeable battery.

In this embodiment, the status indicator light 112 is a color-changing light-emitting diode. In the standby state, the status indicator light 112 flashes slowly; when the power transmission device 100 outputs power wirelessly or wired, the status indicator light 112 keeps on; when the power storage module 120 is in the charging state, the status indicator light 112 flashes quickly; When the power of the power storage module 120 is less than about 40% full, the status indicator 112 emits red light. When the power of the power storage module 120 is greater than about 40% full power, the status indicator light 112 emits blue light.

The power receiving device 200 includes a wireless power receiving module 210 , a rectifying module 220 , a voltage stabilizing module 250 , a microprocessing module 240 , a resonance feedback module 230 , a power supply interface 260 and a data interface 270 .

The power wireless receiving module 210 is used to convert the electromagnetic wave from the power wireless transmitting module 150 into alternating current. The power wireless transmitting module 150 and the power wireless receiving module 210 can transmit power through electromagnetic waves based on electromagnetic induction or resonance. The rectifying module 220 is used for converting the alternating current outputted by the power wireless receiving module 210 into direct current. The rectifier module 220 is connected to the power supply interface 260 and the microprocessor 240 through the voltage stabilization module 250 to output direct current to the power supply interface 260 and the microprocessor 240 . The microprocessor 240 is connected to the output terminals of the rectification module 22 and the voltage stabilizing module, and is also connected to the wireless power receiving module 210 through the resonance feedback module 230 to monitor the charging and discharging conditions of the system. The microprocessor 240 is also connected to the power supply interface 260 and the data interface 270. When a portable electronic device such as a mobile phone or a digital camera is connected to the power supply interface 260, the computer is connected to the data interface 270 to establish data communication between the portable electronic device and the computer. , Portable electronic devices can exchange data with computers while charging.

Referring to FIG. 2, the power transmission device 100 also includes a substantially cuboid power transmission housing 300. The power switch unit 116 is arranged on the top surface of the power transmission housing 300, the charging interface 115, the status indicator light 112 and the power output interface 130 are all arranged on the side of the power transmission housing 300, the voltage stabilizing unit 117, the step-up/down unit 119, the micro Both the processor 118 and the power wireless transmission module 150 are disposed in the power transmission housing 300 .

Please refer to FIG. 3 , the power receiving housing 400 includes a fixed base 410 and a connecting base 420, the connecting base 420 is arranged at one end of the fixed base 410, and the power supply interface 260 is arranged at a side of the connecting base 420 close to the fixed base 410, so that the portable electronic device When the charging interface is plugged into the power supply interface 260 , the portable electronic device can be placed flat on the top surface of the fixed base 410 . The data interface 270 is disposed on the other side of the connection base 420 . The rectifying module 220 , the wireless power receiving module 210 , the resonance feedback module 230 , the voltage stabilizing module 250 and the micro-processing module 240 are all arranged in the connection base 420 .

The top surface of the fixed base 410 is provided with a magnetic isolation and wave absorbing layer 450 to prevent electromagnetic interference of electromagnetic waves on portable electronic devices.

The end of the fixed base 410 away from the connecting base 420 is provided with a fixing part 430 for fixing the portable electronic device. In this embodiment, the fixing part 430 is a removable washing film. The portable electronic device can be lightly pressed so that one end of the portable electronic device is pasted on the removable washable film. In this way, the portable electronic device can be firmly placed on the fixed base 410 to facilitate portability and improve charging stability.

For those skilled in the art, various other corresponding changes and modifications can be made according to the technical solutions and ideas described above, and all these changes and modifications should fall within the protection scope of the claims of the present invention .

Claims (10)

1. A wireless power supply device, characterized in that: it includes a power sending device and a power receiving device; the power sending device includes a power management module, a power storage module, and a power wireless sending module, and the power management module includes a charging interface and a power switch unit and step-up/down unit; the power receiving device includes a power wireless receiving module, a rectifier module, and a power supply interface; The charging interface is used to connect to the external power supply, and the charging interface is connected to the power storage module to store the power of the external power supply in the power storage module; the power storage module is connected to the power wireless transmission module through the power switch unit and the step-up/down unit in turn; the power switch unit is used for To enable the power storage module to supply/not supply power to the step-up/down unit; the power wireless transmission module is used to convert the power output by the step-up/down unit into electromagnetic waves, and send out the converted electromagnetic waves; The power wireless receiving module is used to convert the electromagnetic wave from the power wireless transmitting module into alternating current, and the rectifying module is used to convert the alternating current outputted by the power wireless receiving module into direct current, and the rectifying module is connected to the power supply interface to output direct current to the power supply interface , the power supply interface is used to connect portable electronic devices. 2. The wireless power supply device according to claim 1, characterized in that: the power management module also includes a voltage stabilizing unit and a microprocessor; the power storage module is connected to the microprocessor through the power switch unit and the voltage stabilizing unit in turn; the microprocessor The converter is also connected to the charging interface, the power switch unit, the step-up/down module and the wireless power transmission module. 3. The wireless power supply device according to claim 2, wherein the power management module further comprises a status indicator connected to the microprocessor. 4. The wireless power supply device according to claim 3, wherein the power transmitting device further comprises a power output interface connected to the step-up/step-down unit. 5. The wireless power supply device according to claim 4, wherein the power storage module comprises a rechargeable storage battery and a charging and discharging protection unit connected to the rechargeable storage battery. 6. The wireless power supply device according to claim 5, characterized in that: the power transmission device further comprises a power transmission shell; the power switch unit is arranged on the top surface of the power transmission shell, and the charging interface, the status indicator light and the power output interface are all It is arranged on the side of the power sending shell, and the voltage stabilizing unit, the step-up/down unit, the microprocessor and the power wireless sending module are all arranged in the power sending shell. 7. The wireless power supply device according to claim 1, characterized in that: the power receiving device further includes a micro-processing module, a resonance feedback module and a voltage stabilization module; the voltage stabilization module is connected between the rectification module and the power supply interface, and the resonance feedback module It is connected between the microprocessor module and the power wireless receiving module, and the microprocessor is also connected to the output terminals of the rectification module and the voltage stabilization module. 8. The wireless power supply device according to claim 7, wherein the power receiving device further comprises a data interface connected to the microprocessor, and the microprocessor is also connected to the power supply interface. 9. The wireless power supply device according to claim 8, characterized in that: the power receiving device further includes a power receiving shell, the power receiving shell includes a fixed base and a connecting seat; the connecting seat is set at one end of the fixed base, and the power supply interface is set at The connection base is close to one side of the fixed base, the data interface is set on the other side of the connection base, and the rectification module, power wireless receiving module, resonance feedback module, voltage stabilizing module and micro-processing module are all set in the connection base. 10. The wireless power supply device according to claim 9, characterized in that: the top surface of the fixed base is provided with a magnetic isolation and wave-absorbing layer, and the end of the fixed base away from the connection base is provided with a fixing piece for fixing portable electronic devices .

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