CN205429788U - Vehicular wireless charging system - Google Patents
Vehicular wireless charging system Download PDFInfo
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- CN205429788U CN205429788U CN201521086536.6U CN201521086536U CN205429788U CN 205429788 U CN205429788 U CN 205429788U CN 201521086536 U CN201521086536 U CN 201521086536U CN 205429788 U CN205429788 U CN 205429788U
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Abstract
The utility model provides a vehicular wireless charging system, including DC -DC power module and the wireless module of charging, the vehicle mounted power is connected to DC -DC power module's input, the wireless module of charging is connected to DC -DC power module's output, still including being used for detecting the frequency of operation's of the wireless module of charging detection module and being used for adjusting the power supply voltage's that DC -DC power module provided input voltage adjusting module according to the frequency of operation who detects, detection module is connected with the feedback end of the wireless module of charging, input voltage adjusting module's input is connected with detection module's output, input voltage adjusting module's output and DC -DC power module are connected. The utility model discloses a detection module detects the wireless frequency of operation who charges, and through the ultimate output voltage of conditioning signal control DC -DC power module of voltage regulator module output, because voltage changes, its transmit power is corresponding change also to avoid the frequency of on -vehicle no key system, avoid interference.
Description
Technical field
This utility model relates to power technique fields, belongs to wireless charging system, specifically refers to a kind of onboard wireless charging system.
Background technology
Wireless charging alliance (WPC) is found in 2008, by from Asia, Europe and numerous electronic devices and components manufacturers in America and original equipment manufacturer form.WPC is devoted to the standardization in the world of wireless charging technology, and its wireless charging standard " Qi " issued enables the wireless charging device meeting this standard compatible.Any mobile terminal device meeting " Qi " standard, can be charged with the wireless charger also corresponding to " Qi " standard, it might even be possible to support that plurality of mobile phones is charged simultaneously.
" Qi " standard key property has: (1) near field electromagnetic based on coupling coil principle of induction, and from base station, energy is transferred to mobile terminal device wirelessly；(2) utilize suitable secondary coil, about 5 watts of power can be transmitted；(3) operating frequency range: 110～205kHz；(4) by simple communication protocol, mobile terminal device is enable to control the process of whole energy transmission；(5) sizable design flexibility makes to be easily integrated this system in mobile terminal device；(6) the least stand-by power consumption.
Progress and the reduction of electronic component cost along with science and technology, many portable mobile termianls have become application tool indispensable in our daily life, such as smart mobile phone and panel computer etc., it uses frequency to grow with each passing day, this also makes the power consumption of battery of mobile terminal sharply increase, and the flying power of battery significantly reduces.The iPhone smart mobile phone that the most famous Apple company produces, is almost required for filling once electricity every day, to ensure normal use.Meanwhile, automobile enters our life the most gradually, presents popular trend.People in long-distance travel or when going on business, Should mobile terminal running down of battery, especially mobile phone, the normal Working Life of people will be had a huge impact.Now partial automobile occurs in that vehicle-mounted charger for mobile phone, but owing to the mobile phone charging interface of different brands makes a big difference, so if it is desired to complete to charge on automobile, the charger matched with oneself mobile phone must be carried, is not very convenient.
Nowadays, automobile passive type enters and startup system is applied in automobile more and more, and it is different from traditional vehicle and actively enters and Starting mode, and car owner need not draw out automobile key to the startup whole process of electromotor from into the car.Improve convenience and comfortableness that automobile uses.Start the most commercially available extensive application of system without key at present, and become an attraction of new model.
At present, Ge great auto vendor includes that Toyota, modern times, benz and numerous domestic depot, in order to improve competitiveness, prepare to join QI wireless charging function at its following vehicle subscript one after another.But the frequency of QI wireless charging is 105KHz to 205KHz, start the frequency of system typically at about 150KHz to 160KHz without key.There is overlap in both operating frequencies, can interfere.So the normal work being installed as starting system without key of onboard wireless charging brings serious hidden danger.
Utility model content
The purpose of this utility model is to overcome weak point of the prior art, it is provided that a kind of frequency that can avoid vehicle-mounted keyless systems, it is to avoid the onboard wireless charging system of interference.
The purpose of this utility model is achieved through the following technical solutions:
A kind of onboard wireless charging system, including DC-DC power module and wireless charging module, the input of described DC-DC power module connects vehicle power, the outfan of described DC-DC power module connects wireless charging module, it is characterized in that: the detection module also including the operating frequency for detecting wireless charging module and the input voltage regulation module of the supply voltage provided for the operating frequency regulation DC-DC power module according to detection, described detection module is connected with the feedback end of wireless charging module, the described input of input voltage regulation module is connected with the outfan of detection module, the outfan of described input voltage regulation module is connected with DC-DC power module.
Concrete, described wireless charging module includes wireless charging circuit module and disc induced emission coil, the input of described wireless charging circuit module is connected with DC-DC power module, and the outfan of wireless charging circuit module is connected with disc induced emission coil.
Preferably, it is in series with stabilivolt between described input voltage regulation module and DC-DC power module.
This utility model has the following advantages and beneficial effect compared to existing technology:
This utility model is by increasing detection module and VRM Voltage Regulator Module on the basis of the wireless charging module of current standard, operating frequency by detection module detection wireless charging, in DC-DC power module while 12V turns 5V, the regulation signal exported by VRM Voltage Regulator Module controls the output voltage that DC-DC power module is final, owing to voltage changes, it is launched power and changes the most accordingly, thus avoids the frequency of vehicle-mounted keyless systems, it is to avoid interference.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing, this utility model is described in further detail, but embodiment of the present utility model is not limited to this.
Embodiment
Such as Fig. 1, embodiment provides a kind of onboard wireless charging system, including DC-DC power module and wireless charging module, the input of described DC-DC power module connects vehicle power, the outfan of described DC-DC power module connects QI wireless charging module, the detection module also including the operating frequency for detecting wireless charging module and the input voltage regulation module of the supply voltage provided for the operating frequency regulation DC-DC power module according to detection, described detection module is connected with the feedback end of QI wireless charging module, the described input of input voltage regulation module is connected with the outfan of detection module, the outfan of described input voltage regulation module is connected with DC-DC power module.
Operation principle of the present utility model is as follows:
The operating frequency of wireless charging is relevant with output, and in the case of voltage is certain, frequency is the highest, and power is the lowest, and frequency is the lowest, and power is the highest.Output is also relevant with running voltage simultaneously, and voltage is the highest, and power is the highest, and voltage is the lowest, and power is the lowest.Based on above-mentioned principle, assuming that the operating frequency without key startup system is 160KHz, if single-chip microcomputer detects that wireless charging operating frequency constantly increases from the relatively low frequency range less than 160KHz, illustrate to launch power the biggest, at this moment wireless charging module is reducing power, when close to 160KHz, input voltage regulation module produces regulation signal, control DC-DC power module and improve voltage, increase further and launch power, so wireless charging module will stride across rapidly 160KHz Frequency point, is reduced to lower Frequency point.Vice versa, after completing without key startup system, recovers again normal and exports without regulation.Thus can ensure that wireless charging module does not affects and start system without key.
In the present embodiment, described wireless charging module includes wireless charging circuit module and disc induced emission coil, the input of described wireless charging circuit module is connected with DC-DC power module, and the outfan of wireless charging circuit module is connected with disc induced emission coil.
Wherein, described wireless charging module meets the QI standard of WPC.
In order to ensure to regulate voltage accuracy and improve stability, between described input voltage regulation module and DC-DC power module, it is in series with stabilivolt.
In this utility model, described VRM Voltage Regulator Module is arranged on the feedback end of DC-DC power module, and wherein, VRM Voltage Regulator Module preferably employs PWM (pulse width modulation) mode.
Above-described embodiment is this utility model preferably embodiment; but embodiment of the present utility model is also not restricted to the described embodiments; other any without departing from the change made under spirit of the present utility model and principle, modify, substitute, combine, simplify; all should be the substitute mode of equivalence, within being included in protection domain of the present utility model.
Claims (4)
1. an onboard wireless charging system, including DC-DC power module and wireless charging module, the input of described DC-DC power module connects vehicle power, the outfan of described DC-DC power module connects wireless charging module, it is characterized in that: the detection module also including the operating frequency for detecting wireless charging module and the input voltage regulation module of the supply voltage provided for the operating frequency regulation DC-DC power module according to detection, described detection module is connected with the feedback end of wireless charging module, the described input of input voltage regulation module is connected with the outfan of detection module, the outfan of described input voltage regulation module is connected with DC-DC power module.
Onboard wireless charging system the most according to claim 1, it is characterized in that: described wireless charging module includes wireless charging circuit module and disc induced emission coil, the input of described wireless charging circuit module is connected with DC-DC power module, and the outfan of wireless charging circuit module is connected with disc induced emission coil.
Onboard wireless charging system the most according to claim 1, it is characterised in that: described wireless charging module meets the QI standard of WPC.
4. according to the onboard wireless charging system described in any one of claim 1-3, it is characterised in that: it is in series with stabilivolt between described input voltage regulation module and DC-DC power module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521086536.6U CN205429788U (en) | 2015-12-22 | 2015-12-22 | Vehicular wireless charging system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521086536.6U CN205429788U (en) | 2015-12-22 | 2015-12-22 | Vehicular wireless charging system |
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| Publication Number | Publication Date |
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| CN205429788U true CN205429788U (en) | 2016-08-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201521086536.6U Active CN205429788U (en) | 2015-12-22 | 2015-12-22 | Vehicular wireless charging system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105529770A (en) * | 2015-12-22 | 2016-04-27 | 惠州市雨林科技有限公司 | Vehicle-mounted wireless charging system |
| CN106340924A (en) * | 2016-09-30 | 2017-01-18 | 惠州市雨林科技有限公司 | Low-interference vehicle-mounted wireless charger |
-
2015
- 2015-12-22 CN CN201521086536.6U patent/CN205429788U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105529770A (en) * | 2015-12-22 | 2016-04-27 | 惠州市雨林科技有限公司 | Vehicle-mounted wireless charging system |
| CN105529770B (en) * | 2015-12-22 | 2018-07-27 | 惠州市雨林科技有限公司 | A kind of onboard wireless charging system |
| CN106340924A (en) * | 2016-09-30 | 2017-01-18 | 惠州市雨林科技有限公司 | Low-interference vehicle-mounted wireless charger |
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