CN214412370U - Wireless charging table - Google Patents
Wireless charging table Download PDFInfo
- Publication number
- CN214412370U CN214412370U CN202120767476.3U CN202120767476U CN214412370U CN 214412370 U CN214412370 U CN 214412370U CN 202120767476 U CN202120767476 U CN 202120767476U CN 214412370 U CN214412370 U CN 214412370U
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- China
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- wireless charging
- mobile phone
- transmitting terminal
- screw rod
- positioning
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Abstract
A wireless charging table comprises a table plate, a pressure sensor, a positioning circuit, a scanning device, a wireless charging transmitting terminal and a mobile device; the desk plate is used for placing the mobile phone; the pressure sensor is used for detecting pressure change on the table plate and generating a pressure signal; the scanning device is used for driving the positioning circuit to scan the table plate according to the pressure signal; the positioning circuit is arranged below the desk plate and used for sensing a magnetic element of the mobile phone and generating a positioning signal; the mobile device is arranged below the table board and used for driving the wireless charging transmitting terminal to move to the position below the mobile phone according to the positioning signal. The invention positions the mobile phone by detecting the position of the speaker of the mobile phone through the reed switch and charges the mobile phone by moving the wireless charging transmitting terminal to the corresponding position. The mobile phone can be charged only by being placed at a specific position without being limited, and random placement and random charging can be realized. The wireless charging table can also be made into a wireless charging table mat with the height of 15-20 mm.
Description
Technical Field
The invention relates to the field of wireless charging, in particular to a wireless charging table.
Background
Nowadays, a mobile phone has become a daily necessity from a communication tool. The person going out can not carry the wallet but can not carry the mobile phone. The functions of the mobile phone are more and more, the screen is larger and larger, and meanwhile, the consumption of electric quantity is faster and faster, so that people feel more and more attentive to the electric quantity of the mobile phone. In order to facilitate charging, a plurality of mobile phones have a wireless charging function. Businesses also start to set wireless chargers on the desktop to charge the mobile phones wirelessly. However, in the existing wireless charging desk, the wireless charger is generally installed at a fixed position of the desk, and the wireless charging can be realized only by placing the mobile phone in a fixed area. The method is realized by increasing the number of wireless coils or by a scheme of transmitting electric energy through high-power radio frequency, and the method is extremely energy-consuming.
Disclosure of Invention
The invention aims to overcome the defects and provide a wireless charging table capable of automatically positioning a mobile phone and charging.
In order to achieve the purpose, the technical solution of the invention is as follows: a wireless charging table comprises a table plate, a pressure sensor, a positioning circuit, a scanning device, a wireless charging transmitting terminal, a mobile device and a control unit;
the desk plate is used for placing the mobile phone;
the pressure sensor is used for detecting pressure change on the table plate and generating a pressure signal;
the scanning device is used for driving the positioning circuit to scan the table plate according to the pressure signal;
the positioning circuit is arranged below the desk plate and used for sensing a magnetic element of the mobile phone and generating a positioning signal;
the mobile device is arranged below the table board and used for driving the wireless charging transmitting end to move to the position below the mobile phone according to the positioning signal, and the control unit is connected with the pressure sensor, the positioning circuit, the scanning device, the wireless charging transmitting end and the mobile device.
The invention determines that the mobile phone is placed on the desktop through the pressure signal change generated by the pressure sensor, and detects whether the weight (100- & ltSUB & gt 250g) of one mobile phone is increased on the desktop. The mobile phone on the desktop is positioned through the scanning device, and after the position of the mobile phone on the desktop is determined, the mobile device moves the wireless charging transmitting terminal to be close to the mobile phone for wireless charging, so that the charging efficiency is improved.
Preferably, the scanning device comprises a scanning circuit board and a steering engine, a rotating arm is arranged on the steering engine, the scanning circuit board is arranged on the rotating arm, and the positioning circuit is arranged on the scanning circuit board. The steering engine drives the rotating arm to rotate, drives the scanning circuit board to rotate below the table plate, scans the table plate upwards, and determines the position of the mobile phone. After the mobile phone on the desk is scanned by the scanning circuit, the position of the mobile phone away from a rotating shaft of the steering engine (x ═ l cos θ, y ═ l sin θ) can be calculated according to the rotating angle θ of the steering engine and the position l of a trigger point on the positioning circuit board, the wireless charging transmitting end is driven by the mobile device to move to the position of the mobile phone, and the mobile device is two groups of vertical screw rod pairs. The rotating arm of the steering engine can be provided with a screw pair, and after the mobile phone is positioned by a positioning circuit of the scanning device, the steering engine rotates by a certain angle and is matched with the screw pair to drive the wireless charging transmitting end to be close to the mobile phone.
Preferably, the positioning circuit comprises a plurality of reed switches arranged in a matrix. The reed switch can be triggered by a magnetic field, the loudspeaker of the mobile phone is magnetic, and when the reed switch matrix is close, the reed switch closest to the loudspeaker is easy to trigger.
Preferably, the table comprises table legs, wherein the table legs are arranged below the table plate and used for supporting the table plate; the pressure sensor is arranged between the desk plate and the desk legs. The pressure sensor may be a comb-type thin film pressure sensor. The pressure sensor can also be arranged at the bottom of the table foot.
Preferably, the moving device is arranged on a rotating arm of the steering engine. The scanning device and the moving device share one steering engine, and the moving device can complete moving the wireless charging transmitting end to any position below the table top by matching with the steering engine only by arranging a pair of screw rod pairs, so that the cost is saved.
Preferably, the moving device comprises a screw rod seat, a screw rod, a sliding block and a screw rod motor, the sliding block is slidably arranged on the screw rod seat, the screw rod is rotatably arranged on the screw rod seat, and the screw rod is in threaded fit with the sliding block; the screw rod motor is arranged on the screw rod seat and used for driving the screw rod to rotate; the wireless transmitting terminal that charges sets up on the slider.
Preferably, the automatic resetting device further comprises an infrared sensor, wherein the infrared sensor is arranged on the screw rod seat and used for detecting whether the sliding block moves to the initial position or not and generating a resetting signal.
Preferably, the device further comprises a control unit;
the control unit:
the scanning device is used for controlling the scanning device to drive the positioning circuit to scan the table board according to the pressure signal; or the scanning device is controlled to reset according to the disappearance of the pressure signal;
the wireless charging transmitting terminal is used for controlling the mobile device to drive the wireless charging transmitting terminal to move according to the positioning signal and the charging state of the wireless charging transmitting terminal;
used for determining the charging state of the wireless charging transmitting terminal according to the voltage or the current of the wireless charging transmitting terminal,
the wireless charging transmitter is used for controlling the mobile device to reset according to the charging state of the wireless charging transmitter;
and is used for controlling the scanning device to reset according to the reset signal.
A method of charging comprising the steps of:
(1) when the control unit detects that the short-time pressure change of the pressure signal of the pressure sensor is pressure of 100g-250g weight, the control unit activates the scanning device;
(2) the scanning device drives the positioning circuit to scan the table plate, and when the positioning circuit senses a magnetic element on the mobile phone, a positioning signal is sent to the control unit, and the scanning device stops scanning;
(3) the control unit controls the mobile device to drive the wireless charging transmitting terminal to move to the position located by the locating signal according to the locating signal;
(4) and activating the wireless charging transmitting terminal to charge the mobile phone.
Preferably, in the step (2), the scanning device comprises a scanning circuit board and a steering engine, wherein a rotating arm is arranged on the steering engine, the scanning circuit board is arranged on the rotating arm, and the positioning circuit is arranged on the scanning circuit board; the steering engine drives the rotating arm to drive the scanning circuit board to rotate and scan; the magnetic element is a loudspeaker; the positioning circuit comprises a plurality of reed switches arranged in a matrix;
in the step (3), the moving device is arranged on a rotating arm of the steering engine; the moving device comprises a screw rod seat, a screw rod, a sliding block and a screw rod motor, wherein the sliding block is slidably arranged on the screw rod seat, the screw rod is rotatably arranged on the screw rod seat, and the screw rod is in threaded fit with the sliding block; the screw rod motor is arranged on the screw rod seat and used for driving the screw rod to rotate; the wireless charging transmitting terminal is arranged on the sliding block; further comprising the steps of:
(5) the control unit detects the voltage or current of the wireless charging transmitting terminal and judges whether the wireless charging transmitting terminal is in a charging state; when the wireless charging transmitting end is not in a charging state within a first time range, the control unit controls the steering engine to rotate by a first angle and controls the screw rod motor to rotate for a first number of turns; when the wireless charging transmitting end is in a charging state within preset time, the steering engine and the screw rod motor stop rotating;
(6) when the control unit detects that the wireless charging transmitting terminal exits from the charging state, the control unit controls the steering engine and the screw rod motor to reset; the screw rod seat is provided with an infrared sensor for detecting whether the sliding block moves to an initial position and generating a reset signal;
(7) and when the control unit receives the reset signal, the control unit controls the positioning circuit, the steering engine and the screw rod motor to sleep.
The wireless charging table can further comprise a Bluetooth module and a storage module. The Bluetooth module is used for connecting Bluetooth of the mobile phone to acquire model information of the mobile phone; the storage module stores model information and model associated information of various mobile phones, wherein the model associated information comprises wireless charging power information, mobile phone size, wireless charging receiving end and specific position information of a loudspeaker on the mobile phone; the control unit calls the model associated information from the storage module according to the model information acquired from the Bluetooth module, calculates the specific position and charging power of the wireless charging receiving end of the mobile phone according to the model associated information, and controls the mobile device to drive the wireless charging transmitting end to move to the position below the wireless charging receiving end of the mobile phone for charging. The control unit can optimize the mobile algorithm of the mobile device according to the model information of the mobile phone and optimize the charging mode of the wireless charging transmitting terminal.
The pressure sensors of the wireless charging table can be distributed on the surface of the table top, the positioning circuit comprises a first positioning circuit and a second positioning circuit, the first positioning circuit is arranged on the table top, and the second positioning circuit is driven by the scanning device.
The charging method of the present invention further comprises the following steps after step (4):
when the control unit detects that the wireless charging transmitting terminal exits from the charging state, the scanning device drives the positioning circuit to perform scanning once, and when the positioning circuit positions the second mobile phone at different positions, the mobile device drives the wireless charging transmitting terminal to move to the lower part of the second mobile phone to charge the second mobile phone.
By adopting the technical scheme, the invention has the beneficial effects that: the invention positions the mobile phone by detecting the position of the speaker of the mobile phone through the reed switch and charges the mobile phone by moving the wireless charging transmitting terminal to the corresponding position. The mobile phone can be charged only by being placed at a specific position without being limited, and random placement and random charging can be realized. The wireless charging table can also be made into a wireless charging table mat with the height of 15-20 mm.
Drawings
Fig. 1 is a schematic structural diagram of a wireless charging table according to the present invention;
FIG. 2 is a schematic structural diagram of a scan circuit board according to the present invention;
FIG. 3 is a flow chart of the wireless charging table of the present invention in operation;
fig. 4 is a schematic structural diagram of embodiment 2 of the present invention.
Description of the main reference numerals:
a table board 1; a mobile phone 2; a pressure sensor 3; a table leg 4; a moving device 5; scanning the circuit board 6; a reed switch 61; a steering engine 7; and a wireless charging transmitting terminal 8.
Detailed Description
The invention is further described below with reference to the figures and the specific embodiments.
Example 1:
as shown in fig. 1-3, a wireless charging table includes a table board 1, a pressure sensor 3, a positioning circuit, a scanning device, a wireless charging transmitter 8, and a mobile device 5.
The desk board 1 is used for placing the mobile phone 2. The wireless charging table further comprises table legs 4, and the table legs 4 are arranged below the table plate 1 and used for supporting the table plate 1; the pressure sensor 3 is arranged between the desk board 1 and the desk legs 4.
The pressure sensor 3 is used for detecting the pressure change suffered by the table board 1 and generating a pressure signal.
The scanning device is used for driving the positioning circuit to scan the table board according to the pressure signal. The scanning means are activated when the pressure sensor 3 detects that the table is subjected to a pressure of 100g-250g weight. The scanning device comprises a scanning circuit board 6 and a steering engine 7, wherein a rotating arm is arranged on the steering engine 7, the scanning circuit board 6 is arranged on the rotating arm, and a positioning circuit is arranged on the scanning circuit board 6. The positioning circuit is arranged below the desk board 1 and used for sensing magnetic elements such as a loudspeaker of the mobile phone 1 and generating a positioning signal. The positioning circuit comprises a plurality of reed switches arranged in a matrix.
The mobile device 5 is arranged below the table board 1 and used for driving the wireless charging transmitting terminal 8 to move to the position below the mobile phone 2 according to the positioning signal. The wireless charging transmitting terminal 8 is driven to wirelessly charge the mobile phone 2. The built-in ASK demodulation module can respectively acquire coil voltage and current to perform ASK communication demodulation and decoding. Whether the wireless charging transmitting terminal is charged or not can be determined according to the coil voltage and the current. The moving device 6 is arranged on a rotating arm of the steering engine 7. The moving device 6 comprises a screw rod seat, a screw rod, a sliding block and a screw rod motor, wherein the sliding block is slidably arranged on the screw rod seat, the screw rod is rotatably arranged on the screw rod seat, and the screw rod is in threaded fit with the sliding block; the screw rod motor is arranged on the screw rod seat and used for driving the screw rod to rotate; the wireless transmitting terminal that charges sets up on the slider.
The wireless charging table further comprises an infrared sensor and a control unit, wherein the infrared sensor is arranged on the screw rod seat and used for detecting whether the sliding block moves to the initial position and generating a reset signal.
The control unit:
the scanning device is used for controlling the scanning device to drive the positioning circuit to scan the table board according to the pressure signal; or the scanning device is controlled to reset according to the disappearance of the pressure signal;
the wireless charging transmitting terminal is used for controlling the mobile device to drive the wireless charging transmitting terminal to move according to the positioning signal and the charging state of the wireless charging transmitting terminal;
used for determining the charging state of the wireless charging transmitting terminal according to the voltage or the current of the wireless charging transmitting terminal,
the wireless charging transmitter is used for controlling the mobile device to reset according to the charging state of the wireless charging transmitter;
and is used for controlling the scanning device to reset according to the reset signal.
A method of charging comprising the steps of:
(1) when the control unit detects that the short-time pressure change of the pressure signal of the pressure sensor is pressure of 100g-250g weight, the control unit activates the scanning device;
(2) the scanning device drives the positioning circuit to scan the table plate, and when the positioning circuit senses a magnetic element on the mobile phone, a positioning signal is sent to the control unit, and the scanning device stops scanning;
(3) the control unit controls the mobile device to drive the wireless charging transmitting terminal to move to the position located by the locating signal according to the locating signal;
(4) and activating the wireless charging transmitting terminal to charge the mobile phone.
In the step (2), the scanning device comprises a scanning circuit board and a steering engine, wherein a rotating arm is arranged on the steering engine, the scanning circuit board is arranged on the rotating arm, and a positioning circuit is arranged on the scanning circuit board; the steering engine drives the rotating arm to drive the scanning circuit board to rotate and scan; the magnetic element is a loudspeaker; the positioning circuit comprises a plurality of reed switches arranged in a matrix;
in the step (3), the moving device is arranged on a rotating arm of the steering engine; the moving device comprises a screw rod seat, a screw rod, a sliding block and a screw rod motor, wherein the sliding block is slidably arranged on the screw rod seat, the screw rod is rotatably arranged on the screw rod seat, and the screw rod is in threaded fit with the sliding block; the screw rod motor is arranged on the screw rod seat and used for driving the screw rod to rotate; the wireless charging transmitting terminal is arranged on the sliding block; further comprising the steps of:
(5) the control unit detects the voltage or current of the wireless charging transmitting terminal and judges whether the wireless charging transmitting terminal is in a charging state; when the wireless charging transmitting end is not in a charging state within a first time range, the control unit controls the steering engine to rotate by a first angle and controls the screw rod motor to rotate for a first number of turns; when the wireless charging transmitting end is in a charging state within preset time, the steering engine and the screw rod motor stop rotating;
(6) when the control unit detects that the wireless charging transmitting terminal exits from the charging state, the control unit controls the steering engine and the screw rod motor to reset; the screw rod seat is provided with an infrared sensor for detecting whether the sliding block moves to an initial position and generating a reset signal;
(7) and when the control unit receives the reset signal, the control unit controls the positioning circuit, the steering engine and the screw rod motor to sleep.
Example 2:
as shown in fig. 4, a wireless charging table includes a table board 1, a pressure sensor 3, a positioning circuit, a scanning device, a wireless charging transmitting terminal 8, and a mobile device 5. The desk board 1 is used for placing the mobile phone 2. The pressure sensor 3 is used for detecting pressure change received by the table and generating a pressure signal, and a plurality of pressure sensors are arranged on the table to form a pressure sensing matrix. The scanning device is used for driving the positioning circuit to scan the table board according to the pressure signal. When the pressure sensor detects the pressure of the weight of the mobile phone on the desk board, the scanning device is activated. The scanning device is used for driving the positioning circuit to scan the table plate according to the pressure signal; the positioning circuit is arranged below the desk plate and used for sensing a magnetic element of the mobile phone and generating a positioning signal; the mobile device is arranged below the table board and used for driving the wireless charging transmitting terminal to move to the position below the mobile phone according to the positioning signal.
When the mobile phone is placed on the table board, the mobile phone can be initially positioned by the pressure sensing matrix, and the scanning device drives the positioning circuit to perform accurate positioning. The mobile device drives the wireless charging transmitting terminal to move to a position below the mobile phone to wirelessly charge the mobile phone.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the scope of the invention, and all equivalent variations and modifications made in the claims of the present invention should be included in the scope of the present invention.
Claims (7)
1. A wireless charging table is characterized by comprising a table board, a pressure sensor, a positioning circuit, a scanning device, a wireless charging transmitting terminal, a mobile device and a control unit; the desk plate is used for placing the mobile phone; the pressure sensor is used for detecting the pressure change on the table plate; the scanning device is used for driving the positioning circuit to scan the table plate; the positioning circuit is arranged below the desk plate and used for positioning the mobile phone; the mobile device is arranged below the table plate and used for driving the wireless charging transmitting terminal to move; the control unit is connected with the pressure sensor, the positioning circuit, the scanning device, the wireless charging transmitting terminal and the mobile device.
2. The wireless charging table as claimed in claim 1, wherein the scanning device comprises a scanning circuit board and a steering engine, the steering engine is provided with a rotating arm, the scanning circuit board is arranged on the rotating arm, and the positioning circuit is arranged on the scanning circuit board.
3. A wireless charging table as claimed in claim 2, wherein the positioning circuit comprises a plurality of reed switches arranged in a matrix.
4. The wireless charging table as claimed in claim 1, further comprising table legs, wherein the table legs are arranged below the table top and used for supporting the table top; the pressure sensor is arranged between the desk plate and the desk legs.
5. The wireless charging table as claimed in claim 2, wherein the moving device is arranged on a rotating arm of the steering engine.
6. The wireless charging table as claimed in claim 1, wherein the moving device comprises a screw base, a screw, a slide block and a screw motor, the slide block is slidably disposed on the screw base, the screw is rotatably disposed on the screw base, and the screw is in threaded engagement with the slide block; the screw rod motor is arranged on the screw rod seat and used for driving the screw rod to rotate; the wireless transmitting terminal that charges sets up on the slider.
7. The wireless charging table as claimed in claim 6, further comprising an infrared sensor disposed on the screw base for detecting whether the slider is moved to the initial position and generating a reset signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120767476.3U CN214412370U (en) | 2021-04-14 | 2021-04-14 | Wireless charging table |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120767476.3U CN214412370U (en) | 2021-04-14 | 2021-04-14 | Wireless charging table |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214412370U true CN214412370U (en) | 2021-10-15 |
Family
ID=78031371
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120767476.3U Expired - Fee Related CN214412370U (en) | 2021-04-14 | 2021-04-14 | Wireless charging table |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214412370U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113100567A (en) * | 2021-04-14 | 2021-07-13 | 张扬 | Wireless charging table and charging method |
-
2021
- 2021-04-14 CN CN202120767476.3U patent/CN214412370U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113100567A (en) * | 2021-04-14 | 2021-07-13 | 张扬 | Wireless charging table and charging method |
| CN113100567B (en) * | 2021-04-14 | 2022-08-02 | 张扬 | Wireless charging table and charging method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211015 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |