CN103580294A - Module for converting radio waves into electric energy and low-power electronic device and method utilizing the module - Google Patents
Module for converting radio waves into electric energy and low-power electronic device and method utilizing the module Download PDFInfo
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- CN103580294A CN103580294A CN201210263927.5A CN201210263927A CN103580294A CN 103580294 A CN103580294 A CN 103580294A CN 201210263927 A CN201210263927 A CN 201210263927A CN 103580294 A CN103580294 A CN 103580294A
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Abstract
The invention discloses a module for converting radio waves into electric energy and a low-power electronic device and method utilizing the module. The module for converting radio waves into electric energy comprises a radio wave receiving unit and a signal processing unit, wherein the signal processing unit is electrically connected to the radio wave receiving unit. The radio wave receiving unit is an antenna or an induction coil, and used for receiving at least one radio wave signal with a specific frequency band and converting the radio wave signal into an alternating voltage signal. The signal processing unit is used for receiving the alternating voltage signal, converting the alternating voltage signal into a direct voltage, and outputting the direct voltage to at least one low-power load of the low-power electronic device so that the low-power load can normally work or keep in the standby state. According to the module for converting radio waves into electric energy and the low-power electronic device and method utilizing the module, multiple electromagnetic wave signals in the environment can be effectively recycled and converted into electric energy, and then the electric energy is provide for the low-power electronic device.
Description
Technical field
The present invention relates to a kind of radio wave and turn power module, and be particularly related to the low power electronics apparatus and method that a kind of radio wave that is applicable to low power electronics device turns power module and applies this module.
Background technology
At present there are on the market many electronic installations with solar energy receiver module, for example, solar energy wrist-watch, itself is in order to receive light, and is that electric energy is to the load of electronic installation by transform light energy.Yet the electronic installation of this class is lacking under the environment of light, and cannot be electric energy by transform light energy unceasingly, therefore may make electronic installation cannot work under this environment, thereby cause user's inconvenience.
In addition, owing to using in large quantities mobile phone, computer in human lives ... wait communicator to carry out short distance or long-range radio communication, thereby make within most people live in the scope that base station electromagnetic wave can contain.Because base station is for the service of people's communication can be provided at any time, thus base station 24 hours ceaselessly emitting electromagnetic wave meet the demand of people's radio communication.
Yet, relation due to landform, weather, building or other factors in communication process may cause electromagnetic wave signal to produce refraction, around fluctuation effect loose or reflection, and then may cause the part signal of electromagnetic wave signal or energy to scatter and disappear in people's living environment, therefore may there is the anxiety of waste energy.
Summary of the invention
For problems of the prior art, the object of the invention is to propose the low power electronics apparatus and method that a kind of radio wave turns power module and applies this module, can effectively electromagnetic wave signal many in environment be reclaimed and be converted to electric energy, and then this electric energy is offered to low power electronics device.
The embodiment of the present invention provides a kind of radio wave to turn power module, is applicable to low power electronics device.Radio wave turns power module and comprises radio wave reception unit and signal processing unit.Radio wave reception unit is in order to receive the radio wave signal of at least one special frequency band, and exports after radio wave signal is converted to ac voltage signal, and wherein said special frequency band is the communication band that communicator uses.Signal processing unit is electrically connected to radio wave reception unit, signal processing unit is in order to receive ac voltage signal, and ac voltage signal is converted to the low power load that exports low power electronics device after direct voltage to, so that low power load normal operation or maintain standby.
In the embodiment of the present invention, described radio wave turns power module and also comprises energy storage unit.Energy storage unit is electrically connected to signal processing unit, in order to receive the direct voltage storage of electrical energy of charging, use and extend the time that energy storage unit can effectively be powered, and the low power load of electric energy to low power electronics device is further provided, so that low power load works or maintains standby.
In the embodiment of the present invention, described radio wave turns power module and also comprises: the first switch, is electrically connected between this signal processing unit and this energy storage unit; And detecting unit, in order to detect the charging voltage of this energy storage unit, according to the result of this charging voltage and the comparison of voltage predetermined value, transmit first and control signal to this first switch, to determine conducting or the off-state of this first switch.
In the embodiment of the present invention, this signal processing unit also comprises: rectification circuit, be electrically connected to this radio wave reception unit, and this rectification circuit is in order to be converted to d. c. voltage signal by this ac voltage signal; And voltage stabilizing circuit, being electrically connected to this rectification circuit, this voltage stabilizing circuit is in order to carry out exporting this stable in fact direct voltage after voltage stabilizing to this d. c. voltage signal.
In the embodiment of the present invention, this special frequency band is at least one communication band that at least one communicator uses.
The embodiment of the present invention separately provides a kind of low power electronics device, and this electronic installation comprises that low power load and above-mentioned radio wave turn power module, and wherein radio wave turns power module electric connection low power load.
The embodiment of the present invention also provides a kind of radio wave to turn electric energy method, and this radio wave turns the applicable low power electronics device of electric energy method.Receive the radio wave signal of at least one special frequency band.Radio wave signal is converted to ac voltage signal.Ac voltage signal is converted to direct voltage.Provide the low power load of the electric energy of direct voltage to low power electronics device, so that low power load works or maintains standby.
In the embodiment of the present invention, the step that this ac voltage signal is converted to after this direct voltage also comprises: use this direct voltage to charge to energy storage unit, with storage of electrical energy; And energy storage unit provides at least one low power load of this electric energy to this low power electronics device, so that this low power load normal operation or maintain standby.
In the embodiment of the present invention, the step that this ac voltage signal is converted to this direct voltage comprises: this ac voltage signal is converted to d. c. voltage signal; And this d. c. voltage signal is carried out exporting this stable in fact direct voltage after voltage stabilizing.
In the embodiment of the present invention, this special frequency band is at least one communication band that at least one communicator uses.
In sum, beneficial effect of the present invention is, the low power electronics apparatus and method that the radio wave that the embodiment of the present invention proposes turns power module and applies this module can effectively be reclaimed electromagnetic wave signal many in environment to be converted to electric energy, and then the energy storage unit in low power electronics device is charged or directly electric energy offered to the low power load of low power electronics device.
In one of them embodiment of the present invention, because wireless signal is to intersperse among incessantly in living environment in 24 hours, therefore, compared to the traditional low power electronics device that uses solar attachment, low power electronics device of the present invention all can charge in not specific time and place, use and extend the time that energy storage unit can effectively be powered, low power load of the present invention is connect under most environment and can work or maintain standby, and be difficult for causing user's inconvenience.
For enabling further to understand feature of the present invention and technology contents, refer to following about detailed description of the present invention and accompanying drawing, but these explanations are only for the present invention is described with accompanying drawing, but not interest field of the present invention are done to any restriction.
Accompanying drawing explanation
Hereinafter with reference accompanying drawing explains specific embodiments of the invention, by this can be more clear to the present invention, in graphic:
Figure 1A is for turning the schematic diagram of power module according to the radio wave of the embodiment of the present invention.
Figure 1B turns the schematic diagram of power module for radio wave according to another embodiment of the present invention.
Fig. 2 turns the thin portion schematic diagram of power module for employing wireless electric wave according to another embodiment of the present invention.
Fig. 3 A and Fig. 3 B are according to schematic diagram and the lab diagram of the enforcement multi-frequency radio electric wave receiving element of the embodiment of the present invention.
Fig. 4 is according to the schematic diagram of the enforcement multi-frequency radio electric wave receiving element of the embodiment of the present invention.
Fig. 5 A and Fig. 5 B are according to schematic diagram and the lab diagram of the enforcement wideband radio wave reception unit of the embodiment of the present invention.
Fig. 6 is according to the schematic diagram of the enforcement wideband radio wave reception unit of the embodiment of the present invention.
Fig. 7 is for having according to another embodiment of the present invention the schematic diagram that radio wave turns the low power electronics device of power module.
Fig. 8 illustrates the flow chart that radio wave that radio wave turns power module turns electric energy method.
Wherein, description of reference numerals is as follows:
100,100 ': radio wave turns power module
110: radio wave reception unit
120: signal processing unit
122: rectification circuit
124: voltage stabilizing circuit
130: energy storage unit
140: detecting unit
200: radio wave turns power module
210: low power load
220: radio wave transmission module
300: co-plane waveguide antenna
310: ground plane
320: feed-in unit
330: the first radiation arms
340: the second radiation arms
350: connecting portion
410: circuit board
700: low power electronics device
A: load point
AS: ac voltage signal
CS1: control signal
DS: d. c. voltage signal
DC: direct voltage
SW1: switch
S810, S820, S830, S840, S850, S860: step
WWS: radio wave signal
V1: voltage
Embodiment
Below describing more fully various exemplary embodiments referring to accompanying drawing, show in the accompanying drawings some exemplary embodiments.Yet concept of the present invention may be with many multi-form embodiments, and should not be construed as and be limited to the exemplary embodiments set forth herein.Definite, provide these exemplary embodiments to make the present invention will be for detailed and complete, and will to those skilled in the art, fully pass on the category of concept of the present invention.In all accompanying drawings, can lavish praise on oneself in order to know size and the relative size in Ceng Ji district.Similar numeral is indicated like all the time.
Although should be understood that herein and may describe various elements by term first, second, third, etc., these elements are not limited by these terms should.These terms are to distinguish an element and another element.Therefore the first element of, below discussing can be described as the second element and does not depart from the teaching of concept of the present invention.As used herein, term " and/or " comprise any one and one or many person's all combinations in project of listing that are associated.
(radio wave turns an embodiment of power module)
Please refer to Figure 1A, Figure 1A is for turning the schematic diagram of power module according to the radio wave of the embodiment of the present invention.The radio wave of the present embodiment turns power module 100 ' and comprises radio wave reception unit 110 and signal processing unit 120.Signal processing unit 120 is electrically connected radio wave reception unit 110.
In the present embodiment, radio wave reception unit 110 is in order to receive radio wave signal WWS, and after being converted to ac voltage signal AS, radio wave signal WWS exports signal processing unit 120 to, wherein radio wave reception unit 110 can be antenna (for example single-band antenna, multifrequency antenna or wide frequency antenna) or induction coil, and it can be used at least a portion signal or energy in reception, extraction or induction wireless electric wave signal WWS.In the present embodiment, radio wave reception unit 110 is in order to receive the antenna of at least one special frequency band, but with the present embodiment, is not limited.Described special frequency band is the communication band that most communicators use, and for described low power electronics device, communicator has larger power consumption (that is communicator is highly energy-consuming or high power electronic device).Signal processing unit 120 is in order to receive ac voltage signal AS, and directly exports low power load 130 to after ac voltage signal AS is converted to direct voltage DC.
It should be noted that in embodiments of the present invention, signal processing unit 120 direct output of DC current press DC to low power load 130, so that low power load 130 works or maintains standby.
Please refer to Figure 1B, Figure 1B is for turning according to another embodiment of the present invention the schematic diagram of power module for the radio wave of low power electronics device.The radio wave of the present embodiment turns power module 100 and comprises radio wave reception unit 110, signal processing unit 120 and energy storage unit 130.Signal processing unit 120 is electrically connected radio wave reception unit 110.Energy storage unit 130 is electrically connected to signal processing unit 120.The radio wave of the present embodiment turns power module 100 in order to the low power load of electric energy to low power electronics device to be provided, so that low power load works or maintains standby.
In the present embodiment, radio wave reception unit 110 is in order to receive radio wave signal WWS, and after being converted to ac voltage signal AS, radio wave signal WWS exports signal processing unit 120 to, wherein radio wave reception unit 110 can be antenna (for example single-band antenna, multifrequency antenna or wide frequency antenna) or induction coil, and it can be used at least a portion signal or energy in reception, extraction or induction wireless electric wave signal WWS.In the present embodiment, radio wave reception unit 110 is in order to receive the antenna of at least one special frequency band, but with the present embodiment, is not limited.Described special frequency band is the communication band that most communicators use, and for described low power electronics device, communicator has larger power consumption (that is communicator is highly energy-consuming or high power electronic device).
Below will further illustrate, be about radio wave, to turn the relevant action of power module 100.
Continue referring to Figure 1B, because people use in large quantities mobile phone, computer in life ... wait communicator to carry out short distance or long-range radio communication, thereby make within most people live in the scope that base station electromagnetic wave can contain.Yet, in communication process, can cause many electromagnetic wave signal scatterings, and then cause the forfeiture of electromagnetic wave energy.So the radio wave reception unit 110 that the present embodiment discloses (as antenna or induction coil) can receive, extracts or respond to the radio wave signal WWS in people's living environment.In other words, radio wave reception unit 110 can receive, the radio wave signal WWS in extraction or induction wireless communication process or at least a portion energy of the radio wave signal WWS of scattering is utilized, and can not have influence on the quality of radio communication.
Furthermore, radio wave reception unit 110 can, according to designer's circuit design demand or actual performance requirements, be designed to be able to receive, extract or respond to the radio wave signal WWS of special frequency band.For instance, the electromagnetic wave signal frequency bands such as the frequency band of 4G/3G/2G mobile communication system in telecommunication network, the frequency band of Zigbee system, very high frequency(VHF) (Very high frequency, VHF) TV or the communication band of using while carrying out radio communication such as high power/highly energy-consuming communicator.
Then, radio wave reception unit 110 can convert the radio wave signal WWS that receives, extract or sense to ac voltage signal AS, and is sent to signal processing unit 120.Those skilled in the art should understand, the role of a form of energy conversion is being played the part of in the radio wave reception unit 110 of the present embodiment, and meaning is that radio wave reception unit 110 is converted to the electromagnetic energy in radio wave signal WWS (meaning is electromagnetic wave) electric energy of ac voltage signal AS.Afterwards, signal processing unit 120 can carry out signal processing by its received ac voltage signal AS, is also about to ac voltage signal AS and converts direct voltage DC to, and then export direct voltage DC to energy storage unit 130.
In at least one embodiment, radio wave turns power module 100 and also comprises detecting unit 140 and interrupteur SW 1, and wherein interrupteur SW 1 is electrically connected between signal processing unit 120 and energy storage unit 130.Radio wave turns power module 100 and utilizes detecting unit 140 to detect the charging voltage variation (that is detecting voltage V1) of energy storage unit 130, and according to the result of charging voltage and the comparison of voltage predetermined value, come transfer control signal CS1 to interrupteur SW 1, with conducting or the off-state of determine switch SW1.
Specifically, when the voltage V1 of energy storage unit 130 in charging process reaches voltage predetermined value, detecting unit 140 immediately can transfer control signal CS1 to interrupteur SW 1 with cut-off switch SW1, can avoid accordingly energy storage unit 130 to produce the problem that overcharges and damage.Certainly, when the voltage V1 that energy storage unit 130 detected when detecting unit 140 drops to lower than voltage predetermined value, detecting unit 140 just can transfer control signal CS1 to interrupteur SW 1 with actuating switch SW1, to start again, charge.Therefore, the radio wave of the present embodiment turns power module 100 and can effectively electromagnetic wave signal many in environment be reclaimed and convert electric energy to, and then the energy storage unit 130 of low power electronics device is charged, and do not need particular point in time or locality just can charge, reach the demand at present of economy and environmental protection.
In ensuing a plurality of embodiment, description is different to the part of above-mentioned Figure 1B embodiment, and all the other clippeds are identical with the part of above-mentioned Figure 1B embodiment.In addition,, for the purpose of facility is described, similar reference number or label are indicated similar element.
(radio wave turns another embodiment of power module)
Please refer to Fig. 2, Fig. 2 is for turning according to another embodiment of the present invention the thin portion schematic diagram of power module for the radio wave of low power electronics device.Low power electronics device comprises that radio wave turns power module 200 and low power load 210, and radio wave turns power module 200 and is electrically connected low power load 210.
Radio wave compared to above-mentioned Figure 1B embodiment turns power module 100, and the signal processing unit 120 that the radio wave of the present embodiment turns power module 200 comprises rectification circuit 122 and voltage stabilizing circuit 124.Rectification circuit 122 is electrically connected to radio wave reception unit 110.Voltage stabilizing circuit 124 is electrically connected between rectification circuit 122 and energy storage unit 130.
In the present embodiment, rectification circuit 122 is in order to receive ac voltage signal AS, and ac voltage signal AS is converted to d. c. voltage signal DS.Voltage stabilizing circuit 124 is in order to carry out exporting galvanic current pressure DC in fact after voltage stabilizing to d. c. voltage signal DS.
Next will further illustrate, be about radio wave, to turn the thin portion action of power module 200.
As shown in Figure 2, when user directly or indirectly launches the radio wave signal WWS in order to communicate by letter through radio wave transmission module 220, in communication process due to landform, weather, the relation of building or other factors may cause radio wave signal WWS to produce refraction, around fluctuation effect loose or reflection, and then may cause the part signal of radio wave signal WWS or energy to scatter and disappear in people's living environment, wherein the emission band of radio wave transmission module 220 can be the frequency band of 4G/3G/2G mobile communication system, the frequency band of Zigbee system, very high frequency(VHF) (Very high frequency, VHF) the electromagnetic wave signal frequency band such as TV or the communication band used while carrying out radio communication such as high power/highly energy-consuming communicator.
Although rely on the science and technology of today, signal or energy lost when communicator carries out radio communication are unlikely to meeting excessive influence radio communication quality, and dissipation of energy still may have the problem of waste energy in whole communication environment after all.
Therefore, the radio wave that the embodiment of the present invention discloses turns power module 200 and can utilize radio wave reception unit 110 to receive, extract or at least a portion of responding to from radio wave signal WWS in wireless communication network is reclaimed and be converted to ac voltage signal AS, and the electric wave power conversion that meaning is about in radio wave signal WWS is the electric energy of ac voltage signal AS.Certainly, radio wave reception unit 110 need corresponding be designed to be able to receive, extract or the frequency band of induction 4G/3G/2G mobile communication system, the radio wave signal WWS of the electromagnetic wave signal frequency bands such as the frequency band of Zigbee system, very high frequency(VHF) (Very high frequency, VHF) TV or the communication band used during such as high power/highly energy-consuming communicator radio communication.
For instance, if radio wave reception unit 110 is designed to be able to receive, extract or during the radio wave signal WWS of the special frequency band of induction 3G mobile communication system, a part of the radio wave signal WWS of the special frequency band with 3G mobile communication system that radio wave reception unit 110 just can receive, extraction or induction wireless electric wave emission system 220 are launched.But, suppose that another radio wave transmission system (Fig. 2 does not illustrate) launches the radio wave signal of the special frequency band with 4G/2G mobile communication system, the radio wave signal of the special frequency band with 4G/2G mobile communication system that now radio wave reception unit 110 cannot receive, extraction or induction wireless electric wave emission system 220 are launched.
Afterwards, radio wave reception unit 110 can be sent to rectification circuit 122 by ac voltage signal AS, and by rectification circuit 122, ac voltage signal AS is done to further signal and process to export to voltage stabilizing circuit 124, that is to say ac voltage signal AS is converted to d. c. voltage signal DS.In simple terms, rectification circuit 122 is converted to direct current energy by AC energy.Then, voltage stabilizing circuit 124 can be done further signal by received d. c. voltage signal DS and process to export to energy storage unit 130, that is to say, d. c. voltage signal DS is carried out to the action of voltage stabilizing and press DC to energy storage unit 130 to export galvanic current in fact.Energy storage unit 130, after receiving direct voltage DC, just can start to charge with storage of electrical energy, uses and extends the time that energy storage unit 130 can effectively be powered, and then can provide electric energy to low power load 210.
Next will illustrate, be about providing a plurality of aspects of multifrequency antenna and wide frequency antenna to realize radio wave reception unit.
(embodiment of radio wave reception unit)
Please refer to Fig. 3 A～Fig. 3 B, Fig. 3 A and 3B are according to schematic diagram and the lab diagram of the enforcement multi-frequency radio electric wave receiving element of the embodiment of the present invention.As mentioned above, radio wave reception unit can be multifrequency antenna, in order to receive a plurality of specific communication bands.As shown in Figure 3A, co-plane waveguide antenna 300 comprises ground plane 310, feed-in unit 320, the first radiation arm 330, the second radiation arm 340 and connecting portion 350.Feed-in unit 320 is connected between the second radiation arm 340 and ground plane 310, and connecting portion 350 is in order to connect the first radiation arm 330 and the second radiation arm 340, and wherein radio wave signal WWS enters from signal feed-in point A.The multifrequency antenna of the present embodiment is with co-plane waveguide (coplanar waveguide, CPW) antenna of pattern is made, can be in order to receive the frequency band of 4G/3G/2G mobile communication system simultaneously, and the result from the known Fig. 3 A of Fig. 3 B simulated experiment,-below 10dB, can both receive efficiently the frequency band of 4G/3G/2G mobile communication system simultaneously, wherein the trunnion axis of Fig. 3 B is frequency, and vertical axis is reflection coefficient, and with the present embodiment, is not limited.
In addition, multifrequency antenna also can be realized with other pattern, please refer to Fig. 4, and Fig. 4 is for implementing according to an embodiment of the invention the schematic diagram of multi-frequency radio electric wave receiving element.Those skilled in the art should understand, the multifrequency antenna of Fig. 4 is for being directly made on circuit board 410, have than the co-plane waveguide antenna advantage of small size more, therefore, the multifrequency antenna framework of radio wave reception unit in this description shown in also can enough Fig. 4 reaches the effect of the frequency band that simultaneously receives 4G/3G/2G mobile communication system, but with the present embodiment, is not limited.
Please refer to Fig. 5 A～Fig. 5 B, Fig. 5 A and 5B are for implementing according to an embodiment of the invention schematic diagram and the lab diagram of wideband radio wave reception unit.As mentioned above, radio wave reception unit can also be wide frequency antenna.Those skilled in the art should understand, wide frequency antenna shown in Fig. 5 A is dual polarized antenna (Dual-polarized antenna), and the result of its simulated experiment as shown in Figure 5 B, can effectively receive the radio wave signal of 800MHz～2.2GHz frequency band, wherein the trunnion axis of Fig. 5 B is frequency, vertical axis is standing-wave ratio (VSWR), and with the present embodiment, is not limited.
In addition, wide frequency antenna also can be realized with other pattern, please refer to Fig. 6, and Fig. 6 is according to the schematic diagram of the enforcement wideband radio wave reception unit of the embodiment of the present invention.Those skilled in the art should understand, and the wide frequency antenna of Fig. 6 is dipole antenna (Dipole antenna), also can be in order to realize the radio wave reception unit of this description, but with the present embodiment, be not limited.
Although, this description provides several multifrequency antennas and wide frequency antenna to realize radio wave reception unit, but, do not depart from low power electronics device, utilize multifrequency antenna or wide frequency antenna receive or extract from wireless communication network under the spirit that reclaimed of at least a portion of radio wave signal WWS, be all within the scope of specification of the present invention.
(another embodiment of electronic installation)
Please refer to Fig. 7, Fig. 7 is for having according to another embodiment of the present invention the schematic diagram that radio wave turns the low power electronics device of power module.Low power electronics device 700 comprises that radio wave turns power module 100 and low power load 210.Radio wave turns power module 100 and is converted to direct voltage with storage of electrical energy in order to the radio wave signal WWS that it is received, and required electric energy when providing electric energy to low power load 210 normal operation or maintaining standby.It is to receive low power electronics device 700 radio wave signal WWS in addition that radio wave turns power module 100, and it can also be that the radio wave shown in Fig. 2 turns power module 200 that the radio wave in Fig. 7 turns power module 100, with the present embodiment, is not limited.
Low power electronics device 700 can be electronic installation miscellaneous, for example wrist-watch, clock, computer, pedometer or clinical thermometer ... etc.Specifically, should understand as long as radio wave turns power module 100 receptions, extracts or respond to the part electric wave energy in the radio wave signal WWS in people's living environment, can enough make the electronic installation of all kinds of low power electronics device 700 running, be all in this description scope that will contain.
Referring to Figure 1B and Fig. 8, Fig. 8 illustrates the flow chart that radio wave that radio wave turns power module turns electric energy method.The radio wave of radio wave charging module 100 turns electric energy method and comprises that step is as follows.First, radio wave reception unit 110 receives the radio wave signal WWS (step S810) of at least one special frequency band, that is to say the radio wave signal WWS of reception, extraction or induction special frequency band, for example the electromagnetic wave signal frequency band such as the frequency band of the frequency band of 4G/3G/2G mobile communication system, Zigbee system, very high frequency(VHF) (Very high frequency, VHF) TV or the communication band used during such as high power/highly energy-consuming communicator radio communication.Then, (step S820) exported after radio wave signal WWS is converted to ac voltage signal AS in radio wave reception unit 110.Then, signal processing unit 120 receives ac voltage signal (step S830).Next, signal processing unit 120 is exported (step S840) after ac voltage signal AS is converted to direct voltage DC.Afterwards, energy storage unit 130 reception direct voltages charge and storage of electrical energy (step S850).Required electric energy (step S860) when finally, energy storage unit 130 provides low power load normal operation or maintains standby.
The correlative detail that turns each step of electric energy method about the radio wave of radio wave charging module describes in detail at above-mentioned Figure 1A～Fig. 7 embodiment, at this, does not repeat for this reason.At this, should be noted that, each step of Fig. 8 embodiment is needs for convenience of description only, and the embodiment of the present invention is not usingd each step order to each other as the restrictive condition of implementing each embodiment of the present invention.
(the possible effect of embodiment)
In sum, the radio wave that the embodiment of the present invention provides turns power module and applies the low power electronics apparatus and method of this module, utilize radio wave reception unit in order to receive radio wave signal, and export after radio wave signal is converted to ac voltage signal.Afterwards, utilize signal processing unit to receive ac voltage signal, and after ac voltage signal is converted to direct voltage, export, the electric energy of alternating voltage is offered to the low power load of low power electronics device, and allow low power load work or maintain standby.
In one of them embodiment of the present invention, radio wave turns power module and more utilizes energy storage unit to charge and storage of electrical energy in order to receive direct voltage, use and extend the time that energy storage unit can effectively be powered, and required electric energy when low power load work is provided.
Accordingly, various embodiments of the present invention can not affect under communication quality, effectively at least a portion of radio wave signal many in people's living environment (being electromagnetic wave signal) is reclaimed and is converted to electric energy, and then low-power or low power consuming electronic installation are charged, and need to just can not charge at particular point in time or in locality, reach the demand at present of economy and environmental protection.
In addition, at least one embodiment in a plurality of embodiment of this description, radio wave turns power module and also utilizes the charging voltage of detecting unit detection energy storage unit to determine whether continuing charging, can avoid accordingly energy storage unit to produce the problem that overcharges and damage.
The foregoing is only embodiments of the invention, it is not in order to limit to the scope of the claims of the present invention.
Claims (10)
1. radio wave turns a power module, is applicable to low power electronics device, it is characterized in that, this radio wave turns power module and comprises:
Radio wave reception unit, for antenna or induction coil, in order to receive the radio wave signal of at least one special frequency band, and this radio wave signal is converted to ac voltage signal, wherein this special frequency band is at least one communication band that at least one communicator uses; And
Signal processing unit, be electrically connected to this radio wave reception unit, this signal processing unit is in order to receive this ac voltage signal, and this ac voltage signal is converted to at least one low power load that exports this low power electronics device after direct voltage to, so that this low power load normal operation or maintain standby.
2. radio wave as claimed in claim 1 turns power module, it is characterized in that, this radio wave turns power module and also comprises:
Energy storage unit, be electrically connected to this signal processing unit, in order to receive this direct voltage of this signal processing unit output storage of electrical energy of charging, and this electric energy is offered to this at least one low power load of this low power electronics device, so that this low power load works or maintains standby.
3. radio wave as claimed in claim 2 turns power module, it is characterized in that, this radio wave turns power module and also comprises:
The first switch, is electrically connected between this signal processing unit and this energy storage unit; And
Detecting unit, in order to detect the charging voltage of this energy storage unit, according to the result of this charging voltage and the comparison of voltage predetermined value, transmits first and controls signal to this first switch, to determine conducting or the off-state of this first switch.
4. the radio wave as described in as arbitrary in claims 1 to 3 turns power module, it is characterized in that, this signal processing unit also comprises:
Rectification circuit, is electrically connected to this radio wave reception unit, and this rectification circuit is in order to be converted to d. c. voltage signal by this ac voltage signal; And
Voltage stabilizing circuit, is electrically connected to this rectification circuit, and this voltage stabilizing circuit is in order to carry out exporting this stable in fact direct voltage after voltage stabilizing to this d. c. voltage signal.
5. a low power electronics device, is characterized in that, this low power electronics device comprises:
This radio wave as described in as arbitrary in claims 1 to 3 turns power module; And
This at least one low power load, is electrically connected this radio wave and turns power module, in order to receive this radio wave, turns this electric energy that power module is exported, so that this low power load works or maintains standby.
6. low power electronics device as claimed in claim 5, is characterized in that, this signal processing unit also comprises:
Rectification circuit, is electrically connected to this radio wave reception unit, and this rectification circuit is in order to be converted to d. c. voltage signal by this ac voltage signal; And
Voltage stabilizing circuit, is electrically connected to this rectification circuit, and this voltage stabilizing circuit is in order to carry out exporting this stable in fact direct voltage after voltage stabilizing to this d. c. voltage signal.
7. radio wave turns an electric energy method, is applicable to a low power electronics device, it is characterized in that, this radio wave turns electric energy method and comprises step:
Receive the radio wave signal of at least one special frequency band;
This radio wave signal is converted to ac voltage signal;
This ac voltage signal is converted to direct voltage; And
Provide at least one low power load of the electric energy of this direct voltage to this low power electronics device, so that this low power load works or maintains standby.
8. radio wave as claimed in claim 7 turns electric energy method, it is characterized in that, the step that this ac voltage signal is converted to after this direct voltage also comprises:
Use this direct voltage to charge to energy storage unit, with storage of electrical energy; And
Energy storage unit provides at least one low power load of this electric energy to this low power electronics device, so that this low power load works or maintains standby.
9. radio wave turns electric energy method as claimed in claim 7 or 8, it is characterized in that, the step that this ac voltage signal is converted to this direct voltage comprises:
This ac voltage signal is converted to d. c. voltage signal; And
This d. c. voltage signal is carried out exporting this stable in fact direct voltage after voltage stabilizing.
10. radio wave as claimed in claim 7 turns electric energy method, it is characterized in that, this special frequency band is at least one communication band that at least one communicator uses.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210263927.5A CN103580294A (en) | 2012-07-27 | 2012-07-27 | Module for converting radio waves into electric energy and low-power electronic device and method utilizing the module |
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| CN108964292A (en) * | 2017-05-17 | 2018-12-07 | 富泰华工业（深圳）有限公司 | Electronic device |
| CN110601382A (en) * | 2018-06-13 | 2019-12-20 | 金碳洁股份有限公司 | Microwave battery management circuit and method thereof |
| CN110994244A (en) * | 2019-12-17 | 2020-04-10 | 南皮县华丰电子有限公司 | Wireless socket |
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Application publication date: 20140212 |