CN105680527A - Wireless power supply device of automobile tyre pressure monitor - Google Patents
Wireless power supply device of automobile tyre pressure monitor Download PDFInfo
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- CN105680527A CN105680527A CN201610216971.9A CN201610216971A CN105680527A CN 105680527 A CN105680527 A CN 105680527A CN 201610216971 A CN201610216971 A CN 201610216971A CN 105680527 A CN105680527 A CN 105680527A
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- circuit
- power supply
- wireless power
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- 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
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0068—Battery or charger load switching, e.g. concurrent charging and load supply
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Measuring Fluid Pressure (AREA)
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Abstract
The invention provides a wireless power supply device of an automobile tyre pressure monitor, and belongs to the technical field of wireless power supply. The output end of an energy feedback damper is connected with a circuit module of the wireless power supply device, an emitter of an emission-end driving is fixedly connected to a knuckle pivot of a wheel hub, an emission-end coil is arranged along the knuckle pivot, a reception-end circuit clings to the wheel hub, a reception-end coil is arranged annularly along the wheel hub, and the emission end coil is arranged to face the reception-end coil. The anode and cathode of the input end of a rectification circuit are connected with the anode and cathode of the output end of the energy feedback damper respectively, the output end of the rectification circuit is connected with the input end of a voltage stabilizing circuit, the output end of the voltage stabilizing circuit is connected with an energy storage device, the anode and cathode of the output end of the energy storage device are connected to the anode and cathode of a high-frequency inversion circuit and an emission-end resonance circuit, the anode and cathode of the output end of the emission-end resonance circuit are connected to the emission-end coil, the two ends of the reception-end coil are connected with a reception-end resonance circuit and a rectification and filtering circuit respectively, and the cathode and anode of the output end of the rectification and filtering circuit are connected with the tyre pressure monitor.
Description
Technical field
The invention belongs to a kind of wireless power technical field, in particular to a kind of wireless power transmission power supply technique.
Background technology
Tire pressure monitoring system (TPMS) is the important device ensureing ride safety of automobile, it can monitor tire pressure and the tire temperature of each tire of automobile, early warning timely is made when tire pressure or temperature anomaly, thus avoid the accident in driving conditions, be conducive to improving driving safety and driving comfortable property.
At present, the power supply system of the tire pressure monitoring device on most of private car tire is comparatively simple, button cell is all adopted to power, although button cell has the advantages such as taken up space little, easy to use and environmental pollution is little, but there are some defects in it: cell container is little, life-span is shorter, general only 2-3, and the high thermal environment of tire high speed rotating generation also can affect the life-span of battery; Button cell reliability is lower, cannot long storage time, cannot Real-Time Monitoring electricity; And after battery electricity exhausts, be also a big difficult problem to the replacing of battery.
Such as: according to the retrieval, the existing device utilizing tire belt moving winding circumgyration incision magnetic induction line generate energy to power for tire pressure monitoring system at present, the Chinese patent application being CN204161006U such as publication number discloses a kind of tire pressure monitoring system, comprising: device for monitoring tyre pressure, coil and permanent magnet; Device for monitoring tyre pressure and coil electrical connection, and it is co-located on inside tires; The tire pressure of device for monitoring tyre pressure Real-Time Monitoring tire; Permanent magnet is arranged on the outside of tire, and permanent magnet produces magnetic induction line; The band moving winding of tire rotates and is used for cutting magnetic induction line, makes coil produce electric energy, and sends the electric energy of generation to device for monitoring tyre pressure, thus powers for device for monitoring tyre pressure.
And for example publication number is that the Chinese patent application of CN103935197A discloses a kind of tire pressure monitoring system in real time, it by arranging angular movement sensing unit in device for monitoring tyre pressure, detection tire motion state, therefore can detect within the time of about 1ms and judge that tire is as kinestate, immediately tire pressure monitoring system is waken up, reduce the power consumption of whole tire pressure monitoring system, extend service time of battery.
The equal Shortcomings part of technical scheme of above-mentioned two kinds of novel tire pressure monitoring device power supply systems. The spread of voltage that the first technical scheme produces, namely tire rotation speed is fast, the voltage height of generation; Speed is slow then low. And this scheme converts the mechanical energy of script vehicle movement to electric energy, do not reach energy-conservation object.
Although the 2nd kind of tire pressure monitoring system make use of the device detecting tire motion to wake Monitoring systems up, extend the duration of service of battery to a certain extent, but still can not avoid the problem of battery failure, the trouble changed tire pressure monitoring system battery and bring can not be solved.
Summary of the invention
It is an object of the invention to provide a kind of automotive wheels tire pressure monitor wireless power supply, it can solve the problem that in tire pressure monitoring system, the button cell life-span is short effectively.
It is an object of the invention to be achieved through the following technical solutions: a kind of automotive wheels tire pressure monitor wireless power supply, comprise energy vibroshock and circuit module, energy vibroshock output terminal is connected with the circuit module of wireless power supply, this circuit module is provided with the launching device and wheel hub steering knuckle consolidation of launching end driving circuit, launch end line circle to arrange along steering knuckle, receiving terminal circuit is close to wheel hub, receiving end coil is along wheel hub annular configuration, and transmitting end line circle and receiving end coil position are just to layout, circuit inside modules structure comprises rectifying circuit, voltage stabilizing circuit, high-frequency inverter circuit, launch end tank circuit, receiving end tank circuit and current rectifying and wave filtering circuit, the input of described rectifying circuit is rectified, the output that negative pole connects power feeding shock absorber is rectified, negative pole, its output terminal is connected with the input terminus of voltage stabilizing circuit, the output terminal of voltage stabilizing circuit is connected with energy storage device, the output of energy storage device is rectified, negative pole is just connecing high-frequency inverter circuit, negative pole and transmitting end tank circuit, launching tank circuit exports proper, negative pole connects launches end line circle, it is coupled by magnetic field resonance, by transmitting end magnetic field energy trasfer and be stored in receiving end coil, receiving end coil two ends are connected with receiving end tank circuit, receiving end tank circuit and current rectifying and wave filtering circuit connect, rectification filter circuit output end positive and negative electrode connects tire pressure monitoring device.
Described transmitting end tank circuit is consistent with the alternating current voltage frequency of receiving end tank circuit.
Described transmitting end driving circuit adopts CBB electrical condenser and magnet ring inductance mutually to vibrate, and adopts two MOS pipes for self-excitation. Voltage stabilizing circuit uses 7812 voltage stabilizing chips.
Described transmitting end driving circuit front end adds rly., prevents circuit voltage from starting link because trigger voltage crosses little and damages and be used for self-oscillatory MOS and manage.
The mechanical energy that mechanism power feeding shock absorber is collected first is changed into electric energy by the present invention, and is stored in energy storage device by regulator rectifier circuit. The current rectifying and wave filtering circuit of its wireless energy transform device receiving end adopts synchronous rectify control, is conducive to improving wireless power efficiency. Designing a good high frequency circuit in the present invention is the key link realizing the transmission of efficient electric energy, so taking small power self-sustained oscillation inversion circuit, with two MOS pipe self-sustained oscillations. In self-sustained oscillation circuit, transmitting end line circle is equivalent to inductance, coil in drive system as a resonant inductance, it is achieved zero voltage switch.
Further, for realizing better resonance effect, the present invention chooses the good CBB electrical condenser of high frequency performance, carrying capacity after its charging can keep the long period constant, maintain carrying capacity performance, performance is far longer than paper condenser, minority local medium breakdown after can also self-healing and maintain normal operation.To have electrical property excellent in high frequency circuit uses for CBB electrical condenser, reliability height, the height of resistance to temperature, and volume is little and self-healing performance, and can anti-high-voltage, heavy current impact. Therefore, apparatus of the present invention adopt CBB electrical condenser as the resonant capacitance of resonance manifold type wireless electric energy transmission system.
Especially, the present invention adds a rly. launching in end driving circuit, it is intended that prevents circuit voltage from starting link because trigger voltage crosses little and damages and be used for self-oscillatory MOS and manage.
Compared with prior art, the invention has the beneficial effects as follows
One, have collected the energy that vibroshock can dissipate originally when playing shock absorption, tire pressure monitoring system is powered, it is not necessary to consume the extra energy, reach the object of energy-saving and emission-reduction.
Two, extend the working life of whole tire pressure monitoring system, solve and need the frequent problem changing battery, decrease cost and drop into.
Three, radio energy-transmitting formula self-powered technology replaces traditional powered battery, it is not necessary to restriction tire pressure detection number of times and data transmission times, really realize tire pressure Real-Time Monitoring, accurately and reliably efficiency height.
Accompanying drawing explanation
Fig. 1 is a structural representation of the invention process example
Fig. 2 is the invention process example rectifying and voltage-stabilizing and tank circuit figure
Fig. 3 is the invention process example transmission end driving circuit figure
Fig. 4 is the invention process example receiving terminal circuit figure
Embodiment
Compare accompanying drawing below, by the description to embodiment, to the specific embodiment of the present invention as the effect and principle of work etc. of the mutual position between the shape of involved each component, structure, each several part and connection relation, each several part are described in further detail.
Such as figure, comprise energy vibroshock and circuit module, energy vibroshock 1 output terminal is connected with the circuit module of wireless power supply, this circuit module is provided with the launching device and wheel hub steering knuckle 7 consolidation of launching end driving circuit 5, launch end line circle 6 to arrange along steering knuckle 7, receiving terminal circuit 2 is close to wheel hub 4, and receiving end coil 3 is along wheel hub 4 annular configuration, and transmitting end line circle 6 and receiving end coil 3 position are just to layout;
Circuit inside modules structure comprises rectifying circuit 8, voltage stabilizing circuit 9, high-frequency inverter circuit 11, launch end tank circuit 12, receiving end tank circuit 17 and rectifying and wave-filtering 18 circuit, the output that the input terminus positive and negative electrode of described rectifying circuit 8 connects power feeding shock absorber 1 is rectified, negative pole, its output terminal is connected with the input terminus of voltage stabilizing circuit 9, the output terminal of voltage stabilizing circuit 9 is connected with energy storage device 10, the output of energy storage device 10 is rectified, negative pole is just connecing high-frequency inverter circuit 11, negative pole and transmitting end tank circuit 12, launching tank circuit 12 exports proper, negative pole connects launches end line circle 6, it is coupled by magnetic field resonance, by transmitting end magnetic field energy trasfer and be stored in receiving end coil 3, receiving end coil 3 two ends are connected with receiving end tank circuit 17, receiving end tank circuit 17 and current rectifying and wave filtering circuit 18 connect, current rectifying and wave filtering circuit 18 exports to be rectified, negative pole connects tire pressure monitoring device 19.
Described transmitting end tank circuit 12 is consistent with the alternating current voltage frequency of receiving end tank circuit 17.
Described transmitting end driving circuit 5 adopts CBB electrical condenser 16 and magnet ring inductance 14 mutually to vibrate, and adopts two MOS pipe (15) for self-excitation. Voltage stabilizing circuit 9 uses 7812 voltage stabilizing chips.
Described transmitting end driving circuit 5 front end adds rly. 13, prevents circuit voltage from starting link because trigger voltage crosses little and damages and be used for self-oscillatory MOS pipe 15.
Claims (4)
1. a tire pressure monitoring device wireless power supply, comprise energy vibroshock and circuit module, it is characterized in that power feeding shock absorber (1) output terminal is connected with the circuit module of wireless power supply, this circuit module is provided with the launching device and wheel hub steering knuckle (7) consolidation of launching end driving circuit (5), launch end line circle (6) to arrange along steering knuckle, receiving terminal circuit (2) is close to wheel hub (4), receiving end coil (3) is along wheel hub (4) annular configuration, and transmitting end line circle (6) and receiving end coil (3) position are just to layout, circuit inside modules structure comprises rectifying circuit (8), voltage stabilizing circuit (9), high-frequency inverter circuit (11), launch end tank circuit (12), receiving end tank circuit (17) and rectifying and wave-filtering (18) circuit, the input of described rectifying circuit (8) is rectified, the output that negative pole connects power feeding shock absorber (1) is rectified, negative pole, its output terminal is connected with the input terminus of voltage stabilizing circuit (9), the output terminal of voltage stabilizing circuit (9) is connected with energy storage device (10), the output of energy storage device (10) is rectified, negative pole is just connecing high-frequency inverter circuit (11), negative pole and transmitting end tank circuit (12), launching tank circuit (12) exports proper, negative pole connects launches end line circle (6), it is coupled by magnetic field resonance, by transmitting end magnetic field energy trasfer and be stored in receiving end coil (3), receiving end coil (3) two ends are connected with receiving end tank circuit (17), receiving end tank circuit (17) and current rectifying and wave filtering circuit (18) connect, current rectifying and wave filtering circuit (18) output positive and negative charge connects tire pressure monitoring device (19).
2. a kind of tire pressure monitoring device wireless power supply according to claim 1, it is characterised in that: described transmitting end tank circuit (12) is consistent with the alternating current voltage frequency of receiving end tank circuit (17).
3. a kind of tire pressure monitoring device wireless power supply according to claim 1, it is characterized in that: described transmitting end driving circuit (5) adopts CBB electrical condenser (16) and magnet ring inductance (14) mutually to vibrate, and adopt two MOS pipe (15) for self-excitation. Voltage stabilizing circuit (9) uses 7812 voltage stabilizing chips.
4. a kind of tire pressure monitoring device wireless power supply according to claim 1, it is characterized in that described transmitting end driving circuit (5) front end adds rly. (13), prevent circuit voltage start link because trigger voltage cross little and damage be used for self-oscillatory MOS manage (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610216971.9A CN105680527A (en) | 2016-04-08 | 2016-04-08 | Wireless power supply device of automobile tyre pressure monitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610216971.9A CN105680527A (en) | 2016-04-08 | 2016-04-08 | Wireless power supply device of automobile tyre pressure monitor |
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| Publication Number | Publication Date |
|---|---|
| CN105680527A true CN105680527A (en) | 2016-06-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610216971.9A Pending CN105680527A (en) | 2016-04-08 | 2016-04-08 | Wireless power supply device of automobile tyre pressure monitor |
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| Country | Link |
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| CN (1) | CN105680527A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113315257A (en) * | 2021-06-04 | 2021-08-27 | 西南交通大学 | Rotary wireless power supply device suitable for tire pressure sensor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101227105A (en) * | 2007-11-26 | 2008-07-23 | 清华大学 | Inductance coupling interval power supply device |
| CN103171377A (en) * | 2013-03-26 | 2013-06-26 | 奇瑞汽车股份有限公司 | Passive sensor for tire pressure monitoring system |
| CN104608576A (en) * | 2014-12-02 | 2015-05-13 | 江苏大学 | Automobile vibration energy recovery device |
| CN204704303U (en) * | 2015-05-11 | 2015-10-14 | 三明学院 | A kind of changes mechanical energy is the energy regenerative vibration damper of electric energy |
| CN205657452U (en) * | 2016-04-08 | 2016-10-19 | 西南交通大学 | Tyre pressure monitoring ware wireless power supply device |
-
2016
- 2016-04-08 CN CN201610216971.9A patent/CN105680527A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101227105A (en) * | 2007-11-26 | 2008-07-23 | 清华大学 | Inductance coupling interval power supply device |
| CN103171377A (en) * | 2013-03-26 | 2013-06-26 | 奇瑞汽车股份有限公司 | Passive sensor for tire pressure monitoring system |
| CN104608576A (en) * | 2014-12-02 | 2015-05-13 | 江苏大学 | Automobile vibration energy recovery device |
| CN204704303U (en) * | 2015-05-11 | 2015-10-14 | 三明学院 | A kind of changes mechanical energy is the energy regenerative vibration damper of electric energy |
| CN205657452U (en) * | 2016-04-08 | 2016-10-19 | 西南交通大学 | Tyre pressure monitoring ware wireless power supply device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113315257A (en) * | 2021-06-04 | 2021-08-27 | 西南交通大学 | Rotary wireless power supply device suitable for tire pressure sensor |
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Application publication date: 20160615 |
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| RJ01 | Rejection of invention patent application after publication |