TWM486888U - Wireless power supply system and power supply device thereof - Google Patents

Abstract

The present invention relates to a wireless power supply system and a power supply device thereof. The system includes a current collector and a power supply device. The power supply device is connected to a power source and has a weight sensor. The current collector is installed in an electronic product or connected to multiple electronic products. When an electronic product installed with the current collector is put on the power supply device, the weight sensor will detect the weight. If the weight is greater than a preset weight value, the power supply device will charge the current collector wirelessly, using weight detection to solve the shortcomings of the conventional wireless charger including continuous power consumption and over-charge of the battery.

Description

Air supply system and its power supply device

The present invention is an air-to-air power supply system, and more particularly, an air-conditioning power supply system that utilizes weight detection to initiate a charging procedure.

Due to the rapid development of technology, the number of existing portable electronic products has also increased significantly. It can be carried around with the built-in rechargeable battery, which is convenient for users to operate in different occasions, such as mobile phones and tablets. Computers and game consoles, however, different electronic products are manufactured by different manufacturers, so the charger connector specifications are different, which requires users to use various electronic products to prepare or use a variety of charger connectors to separately carry out electronic products. Charging, but also due to the inconvenience of the winding of the charger wire.

Therefore, in the prior art, a coil set is respectively disposed on an electronic product and a wireless charger, and the wireless charger converts the electric power into an electromagnetic field via the coil group, and then receives the electromagnetic field from the coil group of the electronic product and converts the power into electric power. The built-in battery charging (for example, the charging method of the electric toothbrush) uses the electromagnetic induction between the coil sets to achieve the purpose of wireless charging, and solves the disadvantage that the existing charger needs to use the charging connector of the corresponding electronic product and the winding of the electric wire. .

However, in order to allow the electronic product to be charged at any time, regardless of whether there is an electronic product that needs to be charged in the sensing range, the wireless charger will continuously supply power to the coil group to generate an electromagnetic field, and there is a problem of power consumption. If the battery of the upper electronic product is continuously charged, it may cause overcharging and there is a risk of explosion.

As mentioned above, the existing wireless charger has the problem of power consumption regardless of the electronic products that do not need to be charged in the sensing range, and the power consumption problem is caused by the overcharging of the battery. Therefore, the main purpose of the present invention is to create a dangerous problem. Providing an air-supply power supply system and a power supply device thereof, mainly using weight detection to confirm that an electronic product is placed on the power supply device to activate the charging power source and to set a charging time to avoid power consumption and prevent overcharging of the battery. Dangerous problem.

The main technical means for achieving the foregoing purposes is that the foregoing air-supply power supply device comprises: a load-bearing platform connected to a weight sensor; and a base for providing the load-bearing platform, wherein the base is provided with a power supply module The power supply module includes a central processing unit, a controller, an electromagnetic resonance generator and a resonant coil. The central processing unit is electrically connected to the weight sensor and the controller, respectively, and the electromagnetic resonance generator and the controller respectively And the resonant coil is electrically connected, and the central processor is configured to receive the signal of the weight sensor for weight and charging time determination, so that the controller drives the electromagnetic resonance generator to generate an electromagnetic field through the resonant coil.

The main technical means for achieving the foregoing purposes is that the foregoing air-supply power supply system includes: an air-vacuum power supply device having a base and a load-bearing platform disposed on the base, the load-bearing platform being connected with a weight sensor, a power supply module is disposed in the base, the power supply module includes a central processing unit, a controller, an electromagnetic resonance generator and a resonant coil, and the central processor is electrically connected to the weight sensor and the controller, respectively. The electromagnetic resonance generator is respectively electrically connected to the controller and the resonance coil, wherein the central processor is configured to receive the signal of the weight sensor for weight and charging time determination, so that the controller drives the electromagnetic resonance generator to generate an electromagnetic field through the resonance coil; The electric appliance comprises a resonant induction coil and a rectifying charging module connected to the resonant induction coil, wherein the resonant induction coil receives the electromagnetic field of the resonant coil and is converted into a direct current output by the rectifying charging module.

The power supply system is composed of the foregoing components, and the power receiver is disposed in one external electronic product or connected to one or more electronic products. When the electronic product is placed on the carrying platform of the air supply device, the weight sensor will Detecting the weight of the electronic product and comparing the weight value by the central processing unit. When the weight of the electronic product is greater than the set weight value, the central processor sends a signal to the controller, and the controller drives the electromagnetic resonance generator to transmit The resonant coil generates an electromagnetic field, and the electrical receiver receives the electromagnetic field from the resonant induction coil and is rectified or transformed by the rectifying charging module, so that the electronic product connected to the electrical receiver or the electrical receiver can be charged, and the central processor is When charging an electronic product, it also calculates the charging time to limit overcharging the battery. By using the weight detection and limiting the charging time, the existing wireless charger can be prevented from having power consumption and the battery overcharging is dangerous.

A preferred embodiment of the present invention, as shown in FIG. 1, includes a power supply device 10 and a power receiver 20, which receives an electromagnetic field emitted by the power supply device 10 and uses the electromagnetic field. Convert to DC power to supply external power.

The power supply module 10 includes a power supply module 100. The power supply module 100 includes a central processing unit 12, a controller 13, an electromagnetic resonance generator 14 and a resonant coil 15. The central processing unit 12 and the central processing unit 12 respectively The weight sensor 11 and the controller 13 are electrically connected. The electromagnetic resonance generator 14 is electrically connected to the controller 13 and the resonant coil 15, respectively. The central processor 12 and the weight sensor 11 are connected in series with an A/D signal conversion. The controller 16 is configured to provide an analog/digital signal conversion, and the central processing unit 12 is connected to an input unit 17 and a display 18 for inputting or displaying data. Further, the central processing unit 12 and the controller 13 are respectively connected to a power source 19, The power source 19 provides the power required for each component.

In the embodiment, the central processing unit 12 has a charging determination program 121. Referring to FIG. 2, the charging determination program 121 obtains a weight sensing signal (101) from the weight sensor 11. The sensing signal is subjected to an analog/digital signal conversion process (102) through the A/D signal converter 16, and converted into a weight sensing parameter (103) representing the weight of the object. The charging determining program 121 is based on the weight of the object (weight sense) The measurement parameter is judged. When the object weight (weight sensing parameter) is greater than the set weight value (for example, 5 grams) (104), the charging determination program 121 sends the charging command to the controller 13 (105) by the central processing unit 12. The electromagnetic resonance generator 14 is driven by the controller 13 to generate an electromagnetic field (106) to inductively charge the power receiver 20 (107), and the charging determination program 121 calculates whether the charging time is greater than a set time (for example, 2 hours). (108), if it is greater than the set time, send a stop charging command to the controller 13 to stop or turn off the wireless charging (109).

Still referring to FIG. 1 , the power receiver 20 includes a resonant induction coil 21 and a rectification charging module 22 . The resonant induction coil 21 is electrically connected to the rectification charging module 22 , and the resonant induction coil 21 receives the power supply module. The electromagnetic field generated by the resonance coil 15 of the group 100 is converted into a DC output by the rectification charging module 22; as shown in FIG. 3, the electromagnetic field generated by the electromagnetic resonance generator 14 is obtained by the resonance induction coil 21 (201). The power is generated by the air induction (202), and then the voltage is rectified and rectified by the rectification charging module 22 into a direct current (203), which can charge an external electronic product (204), when the electronic product is fully charged That is, charging is stopped (205).

As shown in FIG. 4 and FIG. 5 , the power supply device 10 further includes a base 30 and a carrying platform 31 . The loading platform 31 is in the shape of a disk. The weight sensor 11 is abutted against the bearing platform 31 . The bottom portion is used for obtaining the weight of the article (not shown) placed on the carrying platform 31 and sending the weight sensing signal; and the carrying platform 31 is formed with an annular flange 311 at the edge thereof to form an accommodating space. The accommodating space is a plurality of electronic products (not shown) for charging, and the loading platform 31 is disposed on the base 30. A recess 301 is formed in the center of the base 30. The slot 301 is for providing the power supply module 100.

Referring to FIGS. 6 and 7, the power receiver 20 is disposed in various electronic products to be charged or is independent of various electronic products to be charged. As shown in FIG. 6, the power receiver 20 is divided into points. In an electronic product, the electronic product can be a digital player (MP3) 41, a mobile phone 42, a selector 43 or a flashlight 44. As shown in FIG. 7, the electrical receiver 20 is independent of various types. In addition to the electronic product, the connector has a plurality of connecting wires, and one end of each connecting wire is provided with a connector 23 corresponding to the charging socket of the electronic product. In this embodiment, the connector may be a USB connector, a mini USB connector, and a connector. Micro USB connector or a cylindrical charging connector. The electronic product connected to the power receiver 20 is also connected to the electronic product by the power receiver 20, and has the function of inductive charging.

Referring to FIG. 8 , the air conditioner 10 is placed on the counter of the doorway when the user enters the door, and only the mobile phone 42 with the power receiver 20 needs to be placed on the carrying platform 31 of the power supply device 10 . When the power supply device 10 detects that the weight of the mobile phone 42 is greater than the set value, the mobile phone 42 is started to be charged, and the mobile phone 42 can be charged without connecting the charging line at all.

It can be seen from the above that the power supply device 10 uses the weight detection to confirm that the electronic product is placed on the carrying platform 31 to charge it, and when the electronic product is charged, the charging time is simultaneously calculated to limit the battery charging. The air supply device 10 utilizes the weight detection and the limited charging time to avoid the problem that the existing wireless charger has a power consumption and the battery is easily overcharged.

10‧‧‧Air supply unit
100‧‧‧Power supply module
11‧‧‧ Weight sensor
12‧‧‧Central processor
121‧‧‧Charging judgment procedure
13‧‧‧ Controller
14‧‧‧Electromagnetic resonance generator
15‧‧‧Resonance coil
16‧‧‧A/D signal converter
17‧‧‧Input unit
18‧‧‧ display
19‧‧‧Power supply
20‧‧‧Receiver
21‧‧‧Resonance induction coil
22‧‧‧Rectifying charging module
23‧‧‧Connectors
30‧‧‧Base
301‧‧‧ Groove
31‧‧‧Loading platform
311‧‧‧Flange
41‧‧‧Digital Player
42‧‧‧Mobile phones
43‧‧‧Selector
44‧‧‧ flashlight

1 is a block diagram of a circuit of a preferred embodiment of the present invention. 2 is a flow chart of a power supply device in accordance with a preferred embodiment of the present invention. 3 is a charging flow diagram of a preferred embodiment of the present invention. 4 is a perspective view of a base of a preferred embodiment of the present invention. Figure 5 is an exploded view of the base of a preferred embodiment of the present invention. Figure 6 is a schematic view (1) of use of a preferred embodiment of the present invention. Figure 7 is a schematic view (2) of the use of a preferred embodiment of the present invention. Figure 8 is a schematic view (3) of use of a preferred embodiment of the present invention.

10‧‧‧Air supply unit

100‧‧‧Power supply module

11‧‧‧ Weight sensor

12‧‧‧Central processor

121‧‧‧Charging judgment procedure

13‧‧‧ Controller

14‧‧‧Electromagnetic resonance generator

15‧‧‧Resonance coil

16‧‧‧A/D signal converter

17‧‧‧Input unit

18‧‧‧ display

19‧‧‧Power supply

20‧‧‧Receiver

21‧‧‧Resonance induction coil

22‧‧‧Rectifying charging module

Claims (7)

An air-supply power supply device includes: a load-bearing platform connected to a weight sensor; and a base for providing the load-bearing platform, wherein the base is provided with a power supply module, and the power supply module includes a central processing unit a controller, an electromagnetic resonance generator and a resonance coil, the central processor is electrically connected to the weight sensor and the controller, respectively, and the electromagnetic resonance generator is electrically connected to the controller and the resonance coil respectively, wherein the central processor is used for The signal of the weight sensor is received for weight and charging time judgment, so that the controller drives the electromagnetic resonance generator to generate an electromagnetic field through the resonance coil. The air conditioner of claim 1 is characterized in that an A/D signal converter is connected between the central processing unit and the weight sensor, and the central processing unit is connected to an input unit, a display and a power source. According to the space-supplied power supply device of claim 2, the central processing unit has a charging determination program, and the weight sensing signal is obtained by the weight sensor, and the weight sensing signal is compared with the analog/digital signal through the A/D signal converter. Converting to a weight sensing parameter, the charging determining program determines according to the weight sensing parameter. When the weight sensing parameter is greater than the set weight value, the charging command is sent to the controller, and the charging determining program calculates whether the charging time is If it is greater than the set time, if it is greater than the set time, send a stop charging command to the controller. An air-to-air power supply system comprising the air-conditioning power supply device and a power receiver as claimed in claims 1 to 3, wherein: the power receiver comprises a resonant induction coil and a rectifying charging module connected to the resonant induction coil, the resonance The induction coil receives the electromagnetic field of the resonant coil of the air supply device and is converted into a direct current output by the rectification charging module. The power supply system of claim 4, wherein the electrical appliance is disposed in an electronic product, the electronic product is a digital player, a mobile phone, a selector, or a flashlight. The power supply system of claim 4, wherein the power receiver is independent of the electronic product, and has a plurality of connecting lines, one end of each connecting line is provided with a connector corresponding to the charging socket of the electronic product. The power supply system of claim 6, wherein the connector is a USB connector or a cylindrical charging connector.