CN108597206A - A kind of rotating environment electricity pick-up device - Google Patents
A kind of rotating environment electricity pick-up device Download PDFInfo
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- CN108597206A CN108597206A CN201810574056.6A CN201810574056A CN108597206A CN 108597206 A CN108597206 A CN 108597206A CN 201810574056 A CN201810574056 A CN 201810574056A CN 108597206 A CN108597206 A CN 108597206A
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Power Engineering (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The invention discloses a kind of rotating environment electricity pick-up devices, are related to electricity pick-up technical field, including：Fixed part and rotating part, rotating part are located inside fixed part, wherein fixed part includes first circuit board, first coil, cylinder, and the first circuit board is connect with the first coil, and the first coil is wrapped on the cylinder；Rotating part includes second circuit board, the second coil, magnetic core, sensor, and the magnetic core is wrapped in as rotary shaft, second coil on the magnetic core, and second coil is connect with the second circuit board, and the second circuit board is connect with the sensor.The invention has the advantages that can effectively solve the problem that the information pick-up problem such as the voltage under rotating environment, electric current, temperature.
Description
Technical field
The present invention relates to electricity pick-up technical fields, are more particularly to a kind of rotating environment electricity pick-up device.
Background technology
In rotary system, including there are two partial contents, wherein a part is stationary part, and another part is rotation
Transfer part point, and need to detect the electricity of rotating part, as long as such as voltage, electric current, temperature but be intended to using sensor
It is relatively difficult will to detect that signal passes to stationary part, the common approach is that using conducting slip ring, since rotating part passes through
Often rotation, therefore conducting slip ring is easy damage, simultaneously because the reasons such as rotation, situations such as coupling part will appear poor contact,
Pick-up is caused to fail.
With the development of wireless communication technique, can also be used the modes such as wireless communication the electric quantity signal of acquisition is passed through it is wireless
The mode of communication is transferred to stationary part, but needs oneself offer power supply to exist in this way to ensure system power supply in rotating part
It is in most cases more difficult.
Invention content
Technical problem to be solved by the present invention lies in how to realize signal transmitting problem under rotating environment.
The present invention is that solution above-mentioned technical problem, specific technical solution are as follows by the following technical programs：
A kind of rotating environment electricity pick-up device, including：Fixed part and rotating part, rotating part are located at fixed part
It is internal, wherein fixed part includes first circuit board, first coil, cylinder, and the first circuit board connects with the first coil
It connects, the first coil is wrapped on the cylinder；Rotating part includes second circuit board, the second coil, magnetic core, sensor, institute
Magnetic core is stated as rotary shaft, second coil is wrapped on the magnetic core, and second coil connects with the second circuit board
It connects, the second circuit board is connect with the sensor.
Preferably, the rotation center of the rotating part is overlapped with the rotation center of the fixed part.
Preferably, the first coil and the direction of winding of second coil are consistent with direction of rotation.
Preferably, the first circuit board includes ON-OFF control circuit, half-bridge drive circuit, demodulator circuit, the switch
Control circuit is connect with the half-bridge drive circuit, and the half-bridge drive circuit, the demodulator circuit and the first coil connect
It connects.
Preferably, the second circuit board includes rectification circuit, microcontroller, modulation circuit, the rectification circuit with it is described
Sensor, the microcontroller, the modulation circuit, second coil connection, the sensor are connect with the microcontroller, institute
It states microcontroller to connect with the modulation circuit, the modulation circuit is connect with second coil.
Preferably, the half-bridge drive circuit circuit includes the first NMOS tube, the second NMOS tube, the first capacitance C1, second
Capacitance C2, the grid of first NMOS tube, second NMOS tube grid all connect with the ON-OFF control circuit, it is described
The drain electrode of first NMOS tube is connect with one end of the first capacitance C1, the source electrode of second NMOS tube and second capacitance
One end of C2 connects, and the source electrode of first NMOS tube is connect with the drain electrode of second NMOS tube, the first capacitance C1's
The other end is connect with the other end of the second capacitance C2, and one end of the first coil is connected to the source of first NMOS tube
With on the connecting line of the drain electrode connection of second NMOS tube, the other end of the first coil is connected to first capacitance for pole
On the connecting line that the other end of C1 is connect with the other end of the second capacitance C2.
Preferably, the rectification circuit includes the first diode D1, the second diode D2, third diode D3, the four or two
The anode of pole pipe D4, the first diode D1 are connect with the cathode of the second diode D2, the anode and the four or two of third diode D3
The cathode of pole pipe D4 connects, and one end of the second coil is connected to the anode of the first diode D1 and the cathode company of the second diode D2
On the connecting line connect, the other end of the second coil is connected to the positive of third diode D3 and is connect with the cathode of the 4th diode D4
Connecting line on, the cathode of the first diode D1 is connect with the cathode of third diode D3, the anode and the of the second diode D2
The anode connection of four diode D4.
Preferably, the first circuit board is connect by cable with the first coil.
Preferably, the second circuit board is connect by cable with second coil, the sensor.
Preferably, the cylinder is circle.
The present invention has the following advantages compared with prior art：
Second coil of the present invention in rotating part is wound around on the rotary shaft, and the second coil winding part position is magnetic conduction
High frequency magnetic core will produce high frequency magnetic when the first coil in fixed part is passed through high-frequency current in the high frequency magnetic core of magnetic conduction
, the direction of high frequency magnetic field is vertical with the coiling direction of first coil, and direction of rotation is consistent with the second coil winding direction, then
As the magnetic core rotates, the magnetic field of the second coil inside in rotating part will not change, so rotary speed is to rotation
The magnetic field of the coil inside of part and fixed part does not influence, and the changes of magnetic field of rotating part is all from fixed part
First coil, in rotating part second it is coil-induced go out voltage by not influenced by rotating, then effectively solve rotating
The information pick-up problem such as voltage, electric current, temperature under environment.
Rectifier bridge on the circuit board of rotating part by the voltage for the coil being attached thereto become direct current supply electricity to plate its
He partly powers.
Description of the drawings
Fig. 1 is a kind of entire block diagram of rotating environment electricity pick-up device of the embodiment of the present invention.
Fig. 2 is a kind of structural schematic diagram of rotating environment electricity pick-up device of the embodiment of the present invention.
Fig. 3 is the coil of the fixed part and rotating part of a kind of rotating environment electricity pick-up device of the embodiment of the present invention
Direction of winding schematic diagram.
Fig. 4 is a kind of circuit block diagram of rotating environment electricity pick-up device of the embodiment of the present invention.
Fig. 5 is a kind of coil driver figure of rotating environment electricity pick-up device of the embodiment of the present invention.
Specific implementation mode
It elaborates below to the embodiment of the present invention, the present embodiment is carried out lower based on the technical solution of the present invention
Implement, gives detailed embodiment and specific operating process, but protection scope of the present invention is not limited to following implementation
Example.
As shown in Figure 1, Figure 2, Figure 3 shows, rotating environment pick-up device, including：Fixed part 100 and rotating part 200, rotation
Part 200 is located inside fixed part 100, wherein fixed part 100 includes circuit board 110, coil 120, cylinder 130, circuit
Plate 110 is connect by cable 300 with coil 120, and coil 120 is wrapped on cylinder 130；Rotating part 200 includes circuit board
210, coil 220, sensor 230, magnetic core 240, coil 220 are connect by cable 300 with circuit board 210, and circuit board 210 passes through
Cable 300 is connect with sensor 230, and coil 220 is wrapped on magnetic core 240, and magnetic core 240 is used as rotary shaft.
Specifically, the rotation center of rotating part 200 is overlapped with the rotation center of fixed part 100, fixed part 100
Coil 120 and the coil 220 of rotating part 200 carry out signal transmission by magnetic field 400.The coiling side of coil 120 and coil 220
To it is consistent with direction of rotation be all counterclockwise rotate.
As shown in Figure 4, Figure 5, circuit board 110 includes ON-OFF control circuit, half-bridge drive circuit, demodulator circuit, switch control
Circuit processed is connect with half-bridge drive circuit, and half-bridge drive circuit, demodulator circuit and coil 120 connect.Wherein, the frequency of demodulator circuit
Rate is 100KHz, and the frequency of ON-OFF control circuit is 50KHz.
Circuit board 210 includes rectification circuit, microcontroller, modulation circuit, rectification circuit and sensor 230, microcontroller, modulation
Circuit, coil 220 connect, and sensor 230 is connect with microcontroller, and microcontroller is connect with modulation circuit, modulation circuit and coil 220
Connection.Wherein, the frequency of modulation circuit is 100KHz.
Half-bridge drive circuit circuit includes NMOS tube N1, NMOS tube N2, capacitance C1, capacitance C2, the grid of NMOS tube N1,
The grid of NMOS tube N2 is all connect with ON-OFF control circuit, and the drain electrode of NMOS tube N1 is connect with one end of capacitance C1, NMOS tube N2
Source electrode connect with one end of capacitance C2, the source electrode of NMOS tube N1 is connect with the drain electrode of NMOS tube N2, the other end of capacitance C1 with
The other end of capacitance C2 connects, and one end of coil 120 is connected to the company of the source electrode of NMOS tube N1 and the drain electrode connection of NMOS tube N2
In wiring, the other end of coil 120 is connected on the connecting line that the other end of capacitance C1 is connect with the other end of capacitance C2.
Rectification circuit includes diode D1, diode D2, diode D3, diode D4, anode and two poles of diode D1
The cathode of pipe D2 connects, and the anode of diode D3 is connect with the cathode of diode D4, and one end of coil 220 is connected to diode D1
The connecting line that connect with the cathode of diode D2 of anode on, the other end of coil 220 is connected to diode D3 positive and two
On the connecting line of the cathode connection of pole pipe D4, the cathode of diode D1 is connect with the cathode of diode D3, the anode of diode D2
It is connect with the anode of diode D4.
Specifically, the coil 120 of fixed part 100 is connected with the circuit board 110 of fixed part 100, in circuit board 110
50KHz ON-OFF control circuits generate PWM (Pulse Width Modulation, impulse modulation) signal that duty ratio is 50%,
Semi-bridge type driving circuit is controlled, semi-bridge type driving circuit is connected with 100 coil 120 of fixed part, in the line of fixed part 100
Circle 120 in generate 50KHz checkers electric current, in magnetic core generate 50KHz replace changing magnetic field, due to direction of rotation with
Coil-winding direction is consistent, therefore is not had an impact to changes of magnetic field, so induced in 200 coil 220 of rotating part
Voltage is determined by the curent change of the coil 120 of fixed part 100 completely, will replace the voltage commutation of variation using rectifier bridge
The power supply of the circuit board 210 in rotating part 200 is supplied electricity at direct current.
The sensor 230 of rotating part 200 converts collected electric signal by AD analog-to-digital conversion modules in microcontroller
At digital signal, then serial communication data is converted digital signals by serial ports and is input in the modulation circuit of 100KHz, modulated
Modulated high-frequency signal is added on the coil 220 in rotating part 200 by circuit, this modulated signal is produced in coil 220
Corresponding magnetic field is given birth to, can also induce the signal of this 100KHz in coil 120, then will be induced in coil 120 by circuit board 110
The 100KHz signal extractions come out obtain communication serial signal by reconciling circuit, this signal exports complete to external reception device
At signal acquisition and communication process.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement etc., should all be included in the protection scope of the present invention made by within refreshing and principle.
Claims (10)
1. a kind of rotating environment electricity pick-up device, which is characterized in that including：Fixed part and rotating part, rotating part position
Inside fixed part, wherein fixed part includes first circuit board, first coil, cylinder, the first circuit board and described the
One coil connects, and the first coil is wrapped on the cylinder；Rotating part includes second circuit board, the second coil, magnetic core, biography
Sensor, the magnetic core are wrapped in as rotary shaft, second coil on the magnetic core, second coil and second electricity
Road plate connection, the second circuit board are connect with the sensor.
2. a kind of rotating environment electricity pick-up device according to claim 1, which is characterized in that the rotation of the rotating part
Turn center to overlap with the rotation center of the fixed part.
3. a kind of rotating environment electricity pick-up device according to claim 1, which is characterized in that the first coil and institute
The direction of winding for stating the second coil is consistent with direction of rotation.
4. a kind of rotating environment electricity pick-up device according to claim 1, which is characterized in that the first circuit board packet
ON-OFF control circuit, half-bridge drive circuit, demodulator circuit are included, the ON-OFF control circuit is connect with the half-bridge drive circuit,
The half-bridge drive circuit, the demodulator circuit are connect with the first coil.
5. a kind of rotating environment electricity pick-up device according to claim 1, which is characterized in that the second circuit board packet
Include rectification circuit, microcontroller, modulation circuit, the rectification circuit and the sensor, the microcontroller, the modulation circuit,
The second coil connection, the sensor are connect with the microcontroller, and the microcontroller is connect with the modulation circuit, described
Modulation circuit is connect with second coil.
6. a kind of rotating environment electricity pick-up device according to claim 4, which is characterized in that the half-bridge drive circuit
Circuit includes the first NMOS tube, the second NMOS tube, the first capacitance C1, the second capacitance C2, the grid of first NMOS tube, described
The grid of second NMOS tube is all connect with the ON-OFF control circuit, the drain electrode of first NMOS tube and the first capacitance C1
One end connection, the source electrode of second NMOS tube connect with one end of the second capacitance C2, the source of first NMOS tube
Pole is connect with the drain electrode of second NMOS tube, and the other end of the first capacitance C1 and the other end of the second capacitance C2 connect
It connects, one end of the first coil is connected to the company of the source electrode of first NMOS tube and the drain electrode connection of second NMOS tube
In wiring, the other end of the first coil is connected to the another of the other end of the first capacitance C1 and the second capacitance C2
On the connecting line for holding connection.
7. according to claim 5 a kind of for rotating environment electricity pick-up device, which is characterized in that the rectification circuit
Including the first diode D1, the second diode D2, third diode D3, the 4th diode D4, the anode of the first diode D1 with
The cathode of second diode D2 connects, and the anode of third diode D3 is connect with the cathode of the 4th diode D4, the second coil
One end is connected on the connecting line that is connect with the cathode of the second diode D2 of anode of the first diode D1, the second coil it is another
End is connected on the positive connecting line being connect with the cathode of the 4th diode D4 of third diode D3, and the first diode D1's is negative
Pole is connect with the cathode of third diode D3, and the anode of the second diode D2 is connect with the anode of the 4th diode D4.
8. a kind of rotating environment electricity pick-up device according to claim 1, which is characterized in that the first circuit board is logical
Cable is crossed to connect with the first coil.
9. a kind of rotating environment electricity pick-up device according to claim 1, which is characterized in that the second circuit board is logical
Cable is crossed to connect with second coil, the sensor.
10. a kind of rotating environment electricity pick-up device according to claim 1, which is characterized in that the cylinder is circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810574056.6A CN108597206A (en) | 2018-06-06 | 2018-06-06 | A kind of rotating environment electricity pick-up device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810574056.6A CN108597206A (en) | 2018-06-06 | 2018-06-06 | A kind of rotating environment electricity pick-up device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108597206A true CN108597206A (en) | 2018-09-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810574056.6A Pending CN108597206A (en) | 2018-06-06 | 2018-06-06 | A kind of rotating environment electricity pick-up device |
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| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116094185A (en) * | 2023-04-06 | 2023-05-09 | 东南大学 | Wireless power transmission device with annular magnetic conduction structure |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100315922A1 (en) * | 2009-06-11 | 2010-12-16 | Yves Maetz | Rotation-activated electronic component |
| CN201985629U (en) * | 2010-12-29 | 2011-09-21 | 朱石雄 | Device for transmitting power to rotating body |
| CN105098998A (en) * | 2014-05-16 | 2015-11-25 | 泰科电子(上海)有限公司 | Wireless power transmission apparatus |
| CN208351698U (en) * | 2018-06-06 | 2019-01-08 | 安徽启电自动化科技有限公司 | A kind of rotating environment electricity pick-up device |
-
2018
- 2018-06-06 CN CN201810574056.6A patent/CN108597206A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100315922A1 (en) * | 2009-06-11 | 2010-12-16 | Yves Maetz | Rotation-activated electronic component |
| CN201985629U (en) * | 2010-12-29 | 2011-09-21 | 朱石雄 | Device for transmitting power to rotating body |
| CN105098998A (en) * | 2014-05-16 | 2015-11-25 | 泰科电子(上海)有限公司 | Wireless power transmission apparatus |
| CN208351698U (en) * | 2018-06-06 | 2019-01-08 | 安徽启电自动化科技有限公司 | A kind of rotating environment electricity pick-up device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116094185A (en) * | 2023-04-06 | 2023-05-09 | 东南大学 | Wireless power transmission device with annular magnetic conduction structure |
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