CN105827020A - Wireless charging output device - Google Patents
Wireless charging output device Download PDFInfo
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- CN105827020A CN105827020A CN201610293241.9A CN201610293241A CN105827020A CN 105827020 A CN105827020 A CN 105827020A CN 201610293241 A CN201610293241 A CN 201610293241A CN 105827020 A CN105827020 A CN 105827020A
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- 230000006854 communication Effects 0.000 claims description 38
- 238000004891 communication Methods 0.000 claims description 36
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- 230000036541 health Effects 0.000 claims description 3
- 230000000474 nursing effect Effects 0.000 claims description 3
- 238000013461 design Methods 0.000 abstract description 9
- 238000001816 cooling Methods 0.000 abstract description 7
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- 238000010586 diagram Methods 0.000 description 11
- 238000010438 heat treatment Methods 0.000 description 11
- 230000005540 biological transmission Effects 0.000 description 5
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- 238000005516 engineering process Methods 0.000 description 4
- 230000002452 interceptive effect Effects 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
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- 239000003990 capacitor Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
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Classifications
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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
- 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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- H02J7/025—
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention relates to the field of wireless charging, specifically to a wireless charging output device. The device specifically includes a housing and an air blower unit, wherein the housing includes an air inlet, an air channel structure and an air outlet which are communicated in sequence, an air blower unit and a wireless charging output coil are arranged in the inner air channel structure and are close to the air outlet, and a wireless charging receiving device is arranged close to the air outlet; and the air blower unit includes a ventilation opening which is arranged towards the wireless charging output coil and the air outlet, and the air blower unit blows air towards the wireless charging output coil through the ventilation opening and blows air towards the wireless charging receiving device through the air outlet. Through the design of the wireless charging output device, the air blower unit is arranged in the inner air channel structure, and the air blower unit blows air towards the wireless charging output coil through the ventilation opening and blows air towards the wireless charging receiving device through the air outlet, thereby realizing cooling.
Description
Technical field
The present invention relates to wireless charging field, be specifically related to a kind of wireless charging output device.
Background technology
Wireless charger refers to that charge power supply line that need not be traditional is connected to the charger needed on the terminal unit of charging, have employed up-to-date wireless charging technology, is used the magnetic field produced between coil by Inductive coupling techniques, transmits electric energy.
Implementing of wireless charging output device product, it is generally divided into power module, low-frequency current power transmission line, wireless charging output circuit module, four parts of transmitting coil module, wherein said power module is generally adapter, high capacity cell or other DC sources, described low-frequency current power transmission line is the conventional electric wire being only suitable for conducted power unidirectional current with low frequency signal alternating current, such as USB line.And described wireless charging output circuit module and two parts of described transmitting coil module typically can be arranged in same shell, or few in the case of be mounted in the assembly housing that be divided into two or more part but close mechanical links together.Is exactly the implementation of existing most wireless charging output device product as disclosed in CN201220552440, also have some wireless charging output device product by power module and wireless charging output circuit module, transmitting coil module assembled in a shell, do not use low-frequency current power transmission line, as disclosed in CN201220725129.
Owing to existing power converting circuit is the most inefficient and produce thermal losses, and in the years ahead time, there is no the possibility of upgrading, and in wireless charging output circuit module, necessarily include described power converting circuit, the most described wireless charging output circuit module turns communication process at direct current and produces many heats, the heat of the wireless charging system generation such as exporting 5W is typically no less than 1W, be equivalent to the heat of 2 little bulbs, if and upgrade to the wireless charging system of 15W or 20W, the heat of generation will reach 3W.This is during actually used wireless charging, wireless charging output device can receive equipment to wireless charging and transmit substantial amounts of heat, wireless charging is caused to receive device temperature more much higher than temperature when directly charging with wire, affect the life-span of product and reduce the reliability of product, even causing in wireless charging reception equipment lithium battery etc. damage completely or explode.
In order to solve the problems referred to above, especially realize receiving the high-speed radio charging being not less than 15W of equipment for wireless charging, use the wireless charging output device product of existing structure design, must take into the transmission of described heat, distribute, be delivered to wireless charging receive the heat of equipment to reduce as far as possible, the thinking of design including, but not limited to increasing overall length and width size and thickness, addition radiator fan even select the heat sink material of high price.Therefore made high-speed radio charging output device is similar to multiple writing case and stacks, bulky；And adding rotating shaft fan in enclosure interior is wireless charging output circuit module heat dissipating simultaneously, its purchase cost about account for the half of high-speed radio charger, but a period of time use after will necessarily because of enter ash, water inlet cause fan work bad or stop work, cannot dispel the heat for wireless charging output device, and described rotating shaft fan can't dispel the heat specially for the launch site of wireless charging reception equipment.
Therefore, use the high-speed radio charger product of existing structure design, not only bulky and be not acceptable to the market, and radiating effect is poor, the life-span is short, is a kind of jejune product.
Simultaneously, under high-speed radio charge condition, it is also the most considerable that wireless charging receives the heat of equipment self generation, directly result in wireless charging reception device temperature significantly to raise, the heat that described wireless charging reception equipment produces in charging process is from the copper loss of wireless charging receiving coil, wireless charging receives the loss of chip, the heat that wireless charging produces when receiving the heat produced when device interior PMU circuitry works and secondary cell charging, the heat that wherein PMU circuitry produces has accounted for a greater part of, and secondary cell has and occupies about the half of remainder.Even if being embodied in employing conventional wire cable to carry out rapid charge, wireless charging receives equipment and also has significantly temperature rising.
Therefore, while carrying out high-speed radio charging, in addition it is also necessary to solve wireless charging and receive the problem of equipment self-heating, and the problem of the heating of wireless charging output device, it is one of the problem of those skilled in the art's primary study always.
On the other hand, traditional wireless charging emitter, in order to carry out high-speed and continuous interactive communication with external device, is typically chosen NFC technique, by realizing with the transmission circuit plate of NFC at the communication antenna of wireless charging transmitting coil modular peripheral design NFC.But, in reality, the data link of NFC device is customized by each publisher with communications protocol layers, not there is versatility, therefore behave as and have no idea to realize a universal NFC device and can carry out accessible communication with other all NFC device, even cannot receive the equipment NFC module that such as mobile phone, intelligent watch are built-in with common wireless charging and carry out accessible communication.Therefore NFC technique does not have the universal general-purpose capability of society, result also in the problems such as current popularization is very slow, system is incompatible.
And conventional wireless charging technique uses the high-frequency alternating current of wireless charging energy to carry out the technology of AM/FM modulation communication as carrier wave, it is only suitable for extremely low transfer rate, the communication of very short time width, it is the most feasible for thus be accordingly used in intermittent regulation wireless charging through-put power, if but to expand at a high speed, long-time continuous communiction influences whether the stability of wireless charging, and causes substantial amounts of energy loss to cause serious heating to cause danger.
And wireless charging emitter and external equipment especially wireless charging receive equipment such as mobile phone, intelligent watch and carry out high-speed and continuous interactive communication, can be that Internet of Things provides effective service, strengthen the application of wireless charging emitter, therefore, need to design a kind of have versatility again without interference with the high speed interactive communication mode of wireless charging energy transfer, be also one of the problem of those skilled in the art's primary study always.
Summary of the invention
The technical problem to be solved in the present invention is, for the drawbacks described above of prior art, it is provided that a kind of wireless charging output device, the problem overcoming the heating of wireless charging output device, and the problem overcoming wireless charging reception equipment self-heating.
The technical solution adopted for the present invention to solve the technical problems is: provide a kind of wireless charging output device, place a wireless charging on this wireless charging output device and receive equipment, this wireless charging output device includes one for outside electric energy is converted into the wireless charging output winding of electromagnetic energy, this wireless charging is received equipment and is charged by wireless charging output winding, and this wireless charging output device also includes:
Housing, this housing includes that the air inlet being sequentially communicated, interior air channel structure and air outlet, this blower unit and wireless charging output winding are arranged in interior air channel structure and near air outlet, and this wireless charging receives equipment and arranges at air outlet；
Blower unit, this blower unit includes a vent, and this vent is arranged towards wireless charging output winding and air outlet, and air is blowed to wireless charging output winding by vent by this blower unit, and blows to wireless charging reception equipment by air outlet.
Wherein, preferred version is: this wireless charging output device includes some interior air channel structures and some blower units being arranged in correspondence in air channel structure, this air channel structure is provided with the air outlet of correspondence, and air is blowed to wireless charging from corresponding air outlet by vent and receives equipment by this blower unit.
Wherein, preferred version is: this blower unit includes an aerator inner shell, this vent is arranged on aerator inner shell, and this aerator inner shell at least includes that a piezoelectric becomes sheet, and the air in aerator inner shell is discharged by the deformation that this aerator inner shell becomes sheet according to piezoelectric from vent.
Wherein, preferred version is: this aerator inner shell is miniature laminated structure, and the two panels up and down of this miniature laminated structure is piezoelectric and becomes sheet.
Wherein, preferred version is: also include a driving module being connected with blower unit, this driving module includes frequency dividing circuit and the on-off circuit being sequentially connected with, and the electric energy of this outside passes sequentially through frequency dividing circuit and on-off circuit realizes frequency reducing, and powers for blower unit.
Wherein, preferred version is: this on-off circuit is single-pole double throw power switch, this single-pole double throw power switch includes a high level input, low level input and low and high level outfan, this high level input and low level input outfan corresponding with frequency dividing circuit respectively connects, and this low and high level outfan is connected with blower unit.
Wherein, preferred version is: this driving module also includes a filter circuit, and this filter circuit is arranged between on-off circuit and blower unit.
Wherein, preferred version is: this wireless charging receives equipment and is lying placed on the housing of wireless charging output device, and this wireless charging receives and is provided with pad between equipment and housing.
Wherein, preferred version is: this surface of shell is provided with outer air duct structure.
Wherein, preferred version is: this wireless charging receive equipment include some heating modules, this heating module at least includes PMU module, wireless charging receiver module and battery module, this air outlet be arranged on on the housing of heating module correspondence position.
Wherein, preferred version is: also include a driving module being connected with blower unit, this driving module includes that interconnective communication control module and coded modulation drive and pickup conditioning module, this coded modulation drives and is connected with blower unit with pickup conditioning module, this communication control module is for producing the coding signal and being decoded by the signal of input needing output, and controls described coded modulation and drive and realize signal input and output and switch communication mode with pickup conditioning module.
Wherein, preferred version is: this coded modulation drives and includes code modulation module, pickup conditioning module and push-pull type power switch circuit with pickup conditioning module, this code modulation module is connected with push-pull type power switch circuit, for the coding signal needing output that described communication control module is transmitted, be converted to midfrequent AC electric energy and drive described blower unit；The acoustical signal that this pickup conditioning module is obtained in time being used as pick up function by described blower unit, carries out nursing one's health and export pickup conditioning module in communication control module.
Wherein, preferred version is: this driving module also includes the second filter circuit, and this second filter circuit is arranged between push-pull type power switch circuit and blower unit.
The beneficial effects of the present invention is, compared with prior art, the present invention is by a kind of wireless charging output device of design, in interior air channel structure, blower unit is set, air is blowed to wireless charging output winding by vent by blower unit, and blow to wireless charging reception equipment by air outlet, it is achieved cooling；Meanwhile, by arranging blower unit, reduce power consumption, reduce cost, improve heat dispersion；The aerator of piezoelectricity change flap-type, compared with traditional helical blade aerator, is particularly suitable for the application scenario that wireless charging device is lightening；And, in driving module, arrange coded modulation drive and pickup conditioning module, realize the output of blower unit and through the audio signal of ovennodulation and at blower unit, detect the extraneous audio signal sent, in order to realize the interactive communication of wireless charging output device and external device.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing:
Fig. 1 is the structural representation of wireless charging output device of the present invention；
Fig. 2 is the schematic diagram of the blower unit air-breathing of Fig. 1；
Fig. 3 is the schematic diagram of the blower unit aerofluxus of Fig. 1；
Fig. 4 is the structural representation of blower unit embodiment one of the present invention；
Fig. 5 is the air-breathing aerofluxus schematic diagram of the blower unit of Fig. 4；
Fig. 6 is the structural representation of blower unit embodiment two of the present invention；
Fig. 7 is the air-breathing aerofluxus schematic diagram of the blower unit of Fig. 6；
Fig. 8 is the structural representation of blower unit embodiment three of the present invention；
Fig. 9 is the air-breathing aerofluxus schematic diagram of the blower unit of Fig. 8；
Figure 10 is the structural representation of the multiple blower unit of the present invention；
Figure 11 is the structural representation being obliquely installed of the present invention；
Figure 12 is that the energy of wireless charging output device of the present invention flows to schematic diagram；
Figure 13 is the circuit block diagram that the present invention drives module；
Figure 14 is the physical circuit block diagram that the present invention drives module；
Figure 15 is the circuit block diagram of communication control module of the present invention；
Figure 16 is the physical circuit block diagram that coded modulation of the present invention drives with pickup conditioning module；
Figure 17 is the circuit block diagram of the present invention the second filter circuit；
Figure 18 is the signal graph of communication modulation signal of the present invention.
Wherein, reference is as follows:
Housing 11, air inlet 111, interior air channel structure 112, air outlet 113, support 114, gripper shoe 115, blower unit 12, vent 121, aerator inner shell 122, air slot 123, blower drum 124, wireless charging output winding 13, wireless charging receives equipment 20, power supply 30, drive module 14, frequency dividing circuit 141, on-off circuit 142, filter circuit 143, coded modulation drives and pickup conditioning module 144, communication control module 145, code modulation module 1441, push-pull type power switch circuit 1443, pickup conditioning module 1442, second filter circuit 146.
Detailed description of the invention
In conjunction with accompanying drawing, presently preferred embodiments of the present invention is elaborated.
As shown in Figure 1, Figure 2 and Figure 3, the present invention provides the preferred embodiment of a kind of wireless charging output device.
A kind of wireless charging output device, place a wireless charging on this wireless charging output device and receive equipment 20, this wireless charging output device includes one for outside electric energy is converted into the wireless charging output winding 13 of electromagnetic energy, this wireless charging is received equipment 20 and is charged by wireless charging output winding 13, this wireless charging output device also includes housing 11 and blower unit 12, when carrying out wireless charging, the mode using air blast cooling receives equipment 20 to wireless charging and carries out radiating and cooling, is described in detail below:
In the housing 11 of the present embodiment, this housing 11 includes air inlet 111, interior air channel structure 112 and the air outlet 113 being sequentially communicated, this blower unit 12 and wireless charging output winding 13 are arranged in interior air channel structure 112 and near air outlet 113, and this wireless charging receives equipment 20 and arranges at air outlet 113.Wherein, air outlet 113 is the through hole of housing 11 inner air and outer air exchange, and air outlet 113 can include some through holes.Meanwhile, air outlet 113 is preferably the area area more than housing 11 outward opening of housing 11 inner opening, it is simple to air blows to housing 11 in housing 11, prevents air blow back simultaneously, improves scavenging efficiency and the speed of air flowing.
In the blower unit 12 of the present embodiment, this blower unit 12 includes a vent 121, this vent 121 is arranged towards wireless charging output winding 13 and air outlet 113, air is blowed to wireless charging output winding 13 by vent 121 by this blower unit 12, and blows to wireless charging by air outlet 113 and receive equipment 20.
With reference to Fig. 2, during blower unit 12 air-breathing, cool exterior air (dotted line) passes sequentially through air inlet 111, interior air channel structure 112, vent 121 enter in blower unit 12.With reference to Fig. 3, during blower unit 12 aerofluxus, the cold air (dotted line) in blower unit 12 passes sequentially through vent 121, air channel structure, air outlet 113 row receive equipment 20 to wireless charging, makes wireless charging receive equipment 20 and lowers the temperature；Meanwhile, cold air, by passing wireless charging output winding 13 during air channel structure, makes wireless charging output winding 13 lower the temperature.
Wireless charging at the present embodiment receives in equipment 20, wireless charging receives equipment 20 and includes some heating modules, this heating module at least includes PMU module, wireless charging receiver module and battery module, this air outlet 113 be arranged on on the housing 11 of heating module correspondence position.Wherein, PMU module is a kind of highly integrated, power supply 30 Managed Solution for portable use, if will Ganlei's power supply 30 of traditional discrete manage within device is incorporated into single encapsulation, so can realize higher power supply 30 conversion efficiency and more low-power consumption, and less package count is to adapt to the plate level space reduced.
Wherein, wireless charging receives equipment 20 and is preferably mobile phone, panel computer or notebook.Shutting down when wireless charging receives equipment 20 or carry out high-speed radio charging during dormancy, PMU module can produce the heat of 50%, and wireless charging receiver module can produce the heat of 35%, and battery module can produce the heat of 15%.And when wireless charging reception equipment 20 starts shooting work, and when carrying out high-speed radio charging, more heat can be produced, wherein PMU module can produce the heat of 25%, wireless charging receiver module can produce the heat of 18.5%, battery module can produce the heat of 8.5%, and remaining operational module (such as CPU/GPU/WIFI module) can produce the heat of 50%.
Further, due to air and wireless charging receive equipment 20 contact the most abundant, air mass flow is the most, the radiating effect of generation is the best.Wireless charging receives equipment 20 and is lying placed on the housing 11 of wireless charging output device, this wireless charging receives and is provided with pad between equipment 20 and housing 11, this pad makes to there is gap between wireless charging reception equipment 20 and housing 11, it is easy to the air from air outlet 113 is discharged flow in gap, make air that wireless charging is received the cooling area of equipment 20 more greatly, improve cooling efficiency.
Further, this housing 11 surface configuration has outer air duct structure.Outer air duct structure is designed outside the surface of housing 11, outer air duct structure includes small salient point, small rut, little texture structure, can be along default direction flowing and turbulization when allowing air flow, the region realizing the needs heat radiation that every a air receives equipment 20 with wireless charging is fully contacted, it is simple to take away more heat.
As shown in Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8 and Fig. 9, the present invention provides the preferred embodiment of three kinds of blower units.
Blower unit 12 includes an aerator inner shell 122, this vent 121 is arranged on aerator inner shell 122, this aerator inner shell 122 at least includes that a piezoelectric becomes sheet, and the air in aerator inner shell 122 is discharged by the deformation that this aerator inner shell 122 becomes sheet according to piezoelectric from vent 121.Wherein, the advantage of piezoelectric is do not have mechanical wear, motor conversion efficiency high.
Preferably, aerator inner shell 122 is miniature laminated structure, and the two panels up and down of this miniature laminated structure is piezoelectric and becomes sheet.Or, aerator inner shell 122 includes that fixing housing 11 and piezoelectric become sheet, and piezoelectric change sheet and fixing housing 11 constitute the cavity of an opposing seal.
Further, blower unit 12 also includes blower drum 124, air slot 123 it is provided with on blower drum 124, air in aerator inner shell 122 is arranged in air slot 123, air is blowed to wireless charging output winding 13 by air slot 123 opening by blower unit 12, and blows to wireless charging by air outlet 113 and receive equipment 20.The opening of air slot 123 is correspondingly arranged with vent 121, it is simple to the air that vent 121 is discharged directly is discharged by the opening of air slot 123, improves wind-force.Wherein, blower unit 12 includes three kinds of embodiments, specific as follows:
Embodiment one, reference Fig. 4 and Fig. 5, vent 121 is arranged on the center of the one side of aerator inner shell 122, and the opening of air slot 123 is arranged on the center of the one side of blower drum 124.
Embodiment two, reference Fig. 6 and Fig. 7, vent 121 is arranged on the side of aerator inner shell 122, and the opening of air slot 123 is arranged on the edge of the one side towards wireless charging output winding 13 of blower drum 124.
Embodiment three, reference Fig. 8 and Fig. 9, vent 121 is arranged on the side of aerator inner shell 122, the opening of air slot 123 is arranged on the side of blower drum 124, now blower unit 12 is arranged on the edge of housing 11, air outlet 113 is also the edge at housing 11, the air outlet 113 being easy to the air edge by housing 11 blows to the edge of wireless charging reception equipment 20, improve wireless charging and receive the cooling area of equipment 20.
As shown in Figure 10 and Figure 11, the present invention provides the preferred embodiment of wireless charging output device of a kind of many blower units.
This wireless charging output device includes some interior air channel structures 112 and some blower units 12 being arranged in correspondence in air channel structure 112, this air channel structure is provided with the air outlet 113 of correspondence, and air is blowed to wireless charging from corresponding air outlet 113 by vent 121 and receives equipment 20 by this blower unit 12.
In wherein a blower unit 12 and wireless charging output winding 13 are arranged at one in air channel structure 112, air is blowed to wireless charging output winding 13 by vent 121 by blower unit 12, and blows to wireless charging reception equipment 20 by air outlet 113；Remaining blower unit 12 is arranged in other in air channel structure 112, air is blowed to air outlet 113 by vent 121 by blower unit 12, and blow to wireless charging reception equipment 20 by air outlet 113, now, air outlet 113 is preferably provided at the edge of housing 11.
Further, the present embodiment provides the preferred version of a kind of wireless charging output device, wireless charging output device is obliquely installed, wireless charging output device includes a support 114, and gripper shoe 115, wireless charging reception equipment 20 is pressed close to housing 11 by gripper shoe 115 and is placed, and part blower unit 12 is arranged on the edge of wireless charging output device.
As shown in Figure 12, Figure 13 and Figure 14, the present invention provides the preferred embodiment driving module
Wireless charging output winding 13 and blower unit 12 are powered by power supply 30.
Simultaneously, wireless charging output device also includes a driving module 14 being connected with blower unit 12, this driving module 14 includes frequency dividing circuit 141 and the on-off circuit 142 being sequentially connected with, the electric energy of this outside passes sequentially through frequency dividing circuit 141 and on-off circuit 142 realizes frequency reducing, and powers for blower unit 12.Drive module 14 drives energy from the wireless charging AC energy of power supply 30 rather than the drive circuit selecting individually to increase a traditional DC/AC conversion carrying oscillating circuit, not only reduces cost, also reduces the size of drive circuit.
Wherein, the operating frequency of blower unit 12 and size, structure are relevant, each blower unit 12 has the resonant frequency of self optimum, when working near resonant frequency, its efficiency is high, power is big, and the frequency of the wireless charging alternating current that wireless charging output device provides is not suitable for blower unit 12 often, therefore, the driving module 14 of design is available to blower unit 12 after wireless charging alternating current is carried out frequency reducing.
In the present embodiment, this on-off circuit 142 is single-pole double throw power switch, this single-pole double throw power switch includes a high level input, low level input and low and high level outfan, this high level input and low level input outfan corresponding with frequency dividing circuit 141 respectively connects, and this low and high level outfan is connected with blower unit 12.Wherein, frequency dividing circuit 141 for carrying out the n times frequency dividing preset by the frequency signal of high-frequency ac electric energy, and is used for controlling the switching of single-pole double throw power switch by the signal after frequency dividing.
Further, driving module 14 also to include a filter circuit 143, this filter circuit 143 is arranged between on-off circuit 142 and blower unit 12.Piezoelectric can be considered as an electric capacity, blower unit 12 is operationally a process that described electric capacity constantly carries out discharge and recharge, in order to avoid described electric capacity produces interference to wireless charging output device, even have impact on the signal of communication of superposition more low frequency on the alternating current of wireless charging output device, therefore, described driving module 14 adds antihunt circuit, eliminates the impact of described capacitor charge and discharge.Described antihunt circuit mainly uses inductance to be formed with capacitances in series and can realize the filter circuit 143 of bandpass filtering, suppresses the energy of higher frequency and more low frequency component.
Wherein, filter circuit 143 typically uses LC series circuit to realize, according to the value of the value of L in the Frequency Design LC series circuit of the frequency optimum traffic point of described blower unit 12 Yu C.
In the present invention, wireless charging output device includes well a soft magnetic materials, and soft magnetic materials is neighbouring with wireless charging output winding 13 to be arranged, and soft magnetic materials receives the wireless charging receiver module of equipment 20 for alternating magnetic field is directed towards wireless charging.
In the present invention, owing to vent 121 or the air slot 123 of blower unit 12 are that exposure is external, therefore, opening part at vent 121 or air slot 123 arranges dustproof network structure, reduces probability, and blower unit 12 also sets up to be processed by waterproof technology, as sprayed underwater paint on piezoelectric ceramic piece, as covered marine glue on circuit, reduce water inlet, enter the probability damaged after ash, improve product service life.
As shown in Figure 15, Figure 16 and Figure 17, the present invention provides the preferred embodiment of a kind of driving module based on communication.
Wireless charging output device also includes a driving module being connected with blower unit 12, module is driven also to include a driving module being connected with blower unit 12, this driving module includes that interconnective communication control module 145 and coded modulation drive and pickup conditioning module 1442, this coded modulation drives and is connected with blower unit 12 with pickup conditioning module 1442, this communication control module 145 is for producing the coding signal needing output and being decoded by the signal of input, and control described coded modulation drive with pickup conditioning module 1442 realize signal input with output and switch communication mode.
It is described in detail below:
This coded modulation drives and includes code modulation module 1441, pickup conditioning module 1442 and push-pull type power switch circuit 1443 with pickup conditioning module 1442, this code modulation module 1441 is connected with push-pull type power switch circuit 1443, for the coding signal needing output that described communication control module 145 is transmitted, be converted to midfrequent AC electric energy and drive described blower unit 12；This pickup conditioning module 1442 is for carrying out nursing one's health and exporting in communication control module 145 by the signal that described blower unit 12 obtains from air vibration.
Further, the control signal that code modulation module 1441 transmits according to communication control module 145, carrying out opening or stop modulation needing the coding signal of output；And when not receiving the coding signal needing output and code modulation module 1441 is in opening, midfrequent AC signal is preset in code modulation module 1441 output, and for blower unit 12, modulation system includes AM, FM or TM.
Simultaneously, the power input side of push-pull type power switch circuit 1443 is respectively connected to a high-voltage direct-current level and a low-voltage direct-current level, outlet side is connected with blower unit 12, under the driving of described frequency dividing circuit and code modulation module 1441, the drive level of blower unit 12 constantly switches at described high-voltage direct-current level and low-voltage direct-current level.Wherein, a high-voltage direct-current level and low-voltage direct-current level from the high-frequency ac electric energy of wireless charging, the DC level of output after rectification circuit, or from the high-frequency ac electric energy in external dc level, preferably power supply 30.
Further, the control signal that pickup conditioning module 1442 transmits according to communication control module 145, the acoustical signal obtained by extraneous vibration carrying out opening or stop to produce blower unit 12 carries out conditioning and detection demodulation, now blower unit uses as pick up function, and is converted to the signal that communication control module 145 can identify.
In the present embodiment, driving module also to include the second filter circuit 146, this second filter circuit 146 is arranged between push-pull type power switch circuit 1443 and blower unit 12.Wherein, the interference that the second filter circuit 146 produces for avoiding blower unit 12, it is linked on wireless charging output winding 13 by circuit, its band passband is the scope of frequency dividing circuit output frequency signal.
As shown in figure 18, the present invention provides the preferred embodiment of a kind of sequential chart.
In order to avoid outside air vibrates the input signal transmitted, flooded by the high power signal of blower unit 12 vibration itself owing to power is the lowest, in communication sequential, therefore have employed ping-pong communication protocol and interval two kinds of sequential manner of monitoring protocols.
Wherein, ping-pong communication protocol is the vibration stopping blower unit 12 after output modulated signal in a period of time, start lasting pickup by pickup conditioning module 1442 simultaneously and monitor the input signal of outside air, after whole communication process terminates, blower unit 12 starts again to start, and dispels the heat；Interval monitoring protocols is during the air blast heat radiation stage, insert one period of blower unit 12 out-of-work time period, utilize this time period blower unit 12 to carry out pickup monitor the input signal of outside air and export modulated signal to external world, and continue to start blower unit 12 after sign off, and carry out air blast heat radiation；It is iteratively repeated above-mentioned steps, between blower unit 12 and pickup conditioning module 1442, realizes alternation.
As described above, only preferred embodiment, it is not intended to limit the scope of the present invention, all equivalence changes made according to scope of the present invention patent or modification, is all the present invention and is contained.
Claims (13)
1. a wireless charging output device, place a wireless charging on this wireless charging output device and receive equipment, this wireless charging output device includes one for outside electric energy is converted into the wireless charging output winding of electromagnetic energy, this wireless charging is received equipment and is charged by wireless charging output winding, it is characterized in that, this wireless charging output device also includes:
Housing, this housing includes that the air inlet being sequentially communicated, interior air channel structure and air outlet, this blower unit and wireless charging output winding are arranged in interior air channel structure and near air outlet, and this wireless charging receives equipment and arranges at air outlet；
Blower unit, this blower unit includes a vent, and this vent is arranged towards wireless charging output winding and air outlet, and air is blowed to wireless charging output winding by vent by this blower unit, and blows to wireless charging reception equipment by air outlet.
Wireless charging output device the most according to claim 1, it is characterized in that: this wireless charging output device includes some interior air channel structures and some blower units being arranged in correspondence in air channel structure, this air channel structure is provided with the air outlet of correspondence, and air is blowed to wireless charging from corresponding air outlet by vent and receives equipment by this blower unit.
Wireless charging output device the most according to claim 1, it is characterized in that: this blower unit includes an aerator inner shell, this vent is arranged on aerator inner shell, this aerator inner shell at least includes that a piezoelectric becomes sheet, and the air in aerator inner shell is discharged by the deformation that this aerator inner shell becomes sheet according to piezoelectric from vent.
Wireless charging output device the most according to claim 3, it is characterised in that: this aerator inner shell is miniature laminated structure, and the two panels up and down of this miniature laminated structure is piezoelectric and becomes sheet.
5. according to the wireless charging output device described in claim 1 or 3, it is characterized in that: also include a driving module being connected with blower unit, this driving module includes frequency dividing circuit and the on-off circuit being sequentially connected with, the electric energy of this outside passes sequentially through frequency dividing circuit and on-off circuit realizes frequency reducing, and powers for blower unit.
Wireless charging output device the most according to claim 5, it is characterized in that: this on-off circuit is single-pole double throw power switch, this single-pole double throw power switch includes a high level input, low level input and low and high level outfan, this high level input and low level input outfan corresponding with frequency dividing circuit respectively connects, and this low and high level outfan is connected with blower unit.
Wireless charging output device the most according to claim 5, it is characterised in that: this driving module also includes a filter circuit, and this filter circuit is arranged between on-off circuit and blower unit.
Wireless charging output device the most according to claim 1 and 2, it is characterised in that: this wireless charging receives equipment and is lying placed on the housing of wireless charging output device, and this wireless charging receives and is provided with pad between equipment and housing.
Wireless charging output device the most according to claim 8, it is characterised in that: this surface of shell is provided with outer air duct structure.
Wireless charging output device the most according to claim 1 and 2, it is characterized in that: this wireless charging receives equipment bag and at least includes PMU module, wireless charging receiver module and battery module, and described air outlet is arranged on the housing of the position corresponding to described PMU module, wireless charging receiver module and battery module.
11. according to the wireless charging output device described in claim 1 or 3, it is characterized in that: also include a driving module being connected with blower unit, this driving module includes that interconnective communication control module and coded modulation drive and pickup conditioning module, this coded modulation drives and is connected with blower unit with pickup conditioning module, this communication control module is for producing the coding signal and being decoded by the signal of input needing output, and controls described coded modulation and drive and realize signal input and output and switch communication mode with pickup conditioning module.
12. wireless charging output devices according to claim 11, it is characterized in that: this coded modulation drives and includes code modulation module, pickup conditioning module and push-pull type power switch circuit with pickup conditioning module, this code modulation module is connected with push-pull type power switch circuit, for the coding signal needing output that described communication control module is transmitted, be converted to midfrequent AC electric energy and drive described blower unit；The acoustical signal that this pickup conditioning module is obtained in time being used as pick up function by described blower unit, carries out nursing one's health and export pickup conditioning module in communication control module.
13. wireless charging output devices according to claim 12, it is characterised in that: this driving module also includes the second filter circuit, and this second filter circuit is arranged between push-pull type power switch circuit and blower unit.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610293241.9A CN105827020A (en) | 2016-05-04 | 2016-05-04 | Wireless charging output device |
| PCT/CN2017/081794 WO2017190603A1 (en) | 2016-05-04 | 2017-04-25 | Wireless charging output device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610293241.9A CN105827020A (en) | 2016-05-04 | 2016-05-04 | Wireless charging output device |
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| CN105827020A true CN105827020A (en) | 2016-08-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610293241.9A Pending CN105827020A (en) | 2016-05-04 | 2016-05-04 | Wireless charging output device |
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| Country | Link |
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| CN (1) | CN105827020A (en) |
| WO (1) | WO2017190603A1 (en) |
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| CN107631196A (en) * | 2017-09-14 | 2018-01-26 | 佛山市利升光电有限公司 | A kind of LED Intelligent lamps of the touch light modulation with wireless charging function |
| CN107863793A (en) * | 2017-10-16 | 2018-03-30 | 深圳闪电猫电子科技有限公司 | A kind of high-efficient heat-dissipating Table top type hypervelocity wireless charger |
| CN108448732A (en) * | 2018-06-13 | 2018-08-24 | 北京有感科技有限责任公司 | Wireless power supply system |
| WO2019085839A1 (en) * | 2017-10-30 | 2019-05-09 | 华为技术有限公司 | Wireless charging device |
| CN111641271A (en) * | 2020-06-11 | 2020-09-08 | 中国人民解放军陆军军医大学第一附属医院 | Medical wireless charging equipment |
| CN113725967A (en) * | 2021-08-26 | 2021-11-30 | 维沃移动通信有限公司 | Wireless charger |
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