CN110556926A - Multi-receiving wireless charging system and method thereof - Google Patents
Multi-receiving wireless charging system and method thereof Download PDFInfo
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- CN110556926A CN110556926A CN201810538065.XA CN201810538065A CN110556926A CN 110556926 A CN110556926 A CN 110556926A CN 201810538065 A CN201810538065 A CN 201810538065A CN 110556926 A CN110556926 A CN 110556926A
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- receiving
- power supply
- component
- resistance
- wireless charging
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- 238000000034 method Methods 0.000 title claims abstract description 17
- 239000003990 capacitor Substances 0.000 claims description 11
- 230000001965 increasing effect Effects 0.000 abstract description 9
- 238000013021 overheating Methods 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- 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
- H02J50/12—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
-
- 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
- H02J50/40—Circuit arrangements or systems for wireless supply or distribution of electric power using two or more transmitting or receiving devices
Abstract
The invention discloses a multi-receiving wireless charging system and a method thereof, the main structure comprises a load element, a plurality of receiving components are connected at two ends of the load element, each receiving component comprises a receiving element, a receiving compensation element, a receiving resistance element and a rectifying element, the receiving compensation element and the receiving resistance element are respectively connected at two ends of the receiving element, the receiving compensation element and the receiving resistance element are both connected on the rectifying element, the rectifying element is connected with the load element, the receiving component can receive a power signal given by a wireless power supply component, by the structure, the wireless power supply component can transmit the power signal to each receiving component, and then the power signal is transmitted to the load element through each receiving component, thereby reducing the probability of overheating and increasing the charging efficiency.
Description
Technical Field
The present invention provides a multi-receiving wireless charging system and method, and more particularly, to a multi-receiving wireless charging system and method capable of reducing heat generation during charging and increasing charging efficiency.
Background
Electronic products such as mobile phones and tablets are indispensable in modern times, and it is quite common that people communicate or record things by using mobile phones, however, as long as electronic products all need to use power, the trouble of insufficient power may occur when the electronic products are used.
If the office workers discuss the public affairs or record the affairs by the electronic product, the power supply is insufficient, most of the consequences are serious, and if the office workers use the electronic product to charge, the use space of the electronic product is easily limited by the charging wire, so that a plurality of wireless charging modes are invented in the modern time.
most wireless charging methods utilize a transmitting terminal to correspond to a receiving terminal to receive power, but the method uses a receiving terminal to charge, which is prone to generate an overheating condition at high power, and further affects the charging efficiency.
Therefore, how to solve the above-mentioned problems and disadvantages is a direction in which the applicant of the present invention and the related manufacturers engaged in the industry are keenly interested in studying and improving.
Therefore, in view of the above-mentioned shortcomings, the present inventors have collected relevant information, evaluated and considered in many ways, and finally devised the present invention through continuous trial and modification with years of experience accumulated in the industry.
disclosure of Invention
The invention aims to provide a multi-receiving wireless charging system and a method thereof, wherein the multi-receiving wireless charging system is not easy to overheat and has better charging efficiency.
Based on the above, the present invention mainly adopts the following technical means to achieve the above object.
A multi-receiving wireless charging system mainly comprises: a load element; the receiving components are electrically connected with two ends of the load element respectively, each receiving component comprises a receiving element, a receiving compensation element, a receiving resistance element and a rectifying element, the receiving compensation element and the receiving resistance element are both positioned at one side of the receiving element, the rectifying element is positioned at one side of the receiving compensation element and the receiving resistance element, which deviates from the receiving element, the two ends of the receiving compensation element are electrically connected with the receiving element and the rectifying element respectively, the two ends of the receiving resistance element are also electrically connected with the receiving element and the rectifying element respectively, and one side of the rectifying element, which deviates from the receiving compensation element and the rectifying element, is electrically connected with the load element; and a wireless power supply assembly for providing a power signal to the receiving assembly, the wireless power supply assembly being located at one side of the receiving assembly.
furthermore, the wireless power supply assembly comprises a transmitting element, a power supply resonance element and a power supply resistance element, wherein the transmitting element is located at one side adjacent to the receiving assembly, the power supply resonance element and the power supply resistance element are located between the power supply element and the transmitting element, two ends of the power supply resonance element are respectively and electrically connected with the power supply element and the transmitting element, and two ends of the power supply resistance element are also respectively and electrically connected with the power supply element and the transmitting element.
further, the power supply resonance element is a capacitor.
Further, the rectifying element is one of a full bridge rectifier, a D-type rectifier or an E-type rectifier.
Further, the receiving compensation element is a capacitor.
A multi-receiving wireless charging method comprises the following steps: (a) electrically connecting a plurality of receiving components with a load element; (b) the receiving component is close to one side of a wireless power supply element, and the wireless power supply component can provide power signals for each receiving component; (c) the power signal is received by a receiving device in each receiving component; (d) the power signal received by each receiving component will be compensated by a receiving compensation component in each receiving component and a receiving resistance component; (e) the compensated power signal is rectified by a rectifying element in each receiving component; (f) the power signal rectified by each rectifier element will be supplemented into the load element, so as to charge the load element by the power signal.
Preferably, the wireless power supply component in step (b) includes a transmitting element, a power supply resonance element, and a power supply resistance element, wherein two ends of the power supply element are electrically connected to the power supply resonance element and the power supply resistance element, and one end of the power supply resonance element and the end of the power supply resistance element away from the power supply element are electrically connected to the transmitting element, and the power supply element can send a power signal, and tune through the power supply resonance element and the power supply resistance element, and then transmit the power signal to each receiving component through the transmitting element.
Preferably, the power supply resonant element is a capacitor.
preferably, the rectifying element in the step (E) is one of a full bridge rectifier, a D-type rectifier, or an E-type rectifier.
Preferably, the receiving compensation element in step (d) is a capacitor.
After the technical means is adopted, the invention utilizes a plurality of receiving components to receive the power signal given by the wireless power supply component, thereby reducing the chance that a single receiving end is easy to overheat when in high power, and enhancing the power and efficiency when the receiving end is charged, concretely, the power supply component in the wireless power supply component gives the power signal, the power signal is tuned through the matching of the power supply resonance component and the power supply resistance component, then the power signal is transmitted to each receiving component through the transmitting component, the receiving component in the receiving component receives the power signal, then the power signal is converted into direct current through the rectifying component and then is supplemented into the load component, because the mutual inductance effect can be generated among each receiving component, and the power signal given to the load component by the receiving component is influenced, the power signal is compensated through the matching of the receiving compensation component and the receiving resistance component, therefore, the mutual inductance effect can be avoided, the power signal can be amplified to increase the efficiency because the power signal is received by the plurality of receiving components, and the phenomenon of overheating is not easy to generate because the power received by each receiving component is small.
By means of the technology, the problems that the conventional wireless charging is easy to overheat and has lower efficiency can be solved, and the advantages are achieved.
Drawings
fig. 1 is a charging diagram according to a preferred embodiment of the invention.
FIG. 2 is a diagram illustrating the mutual inductance of the preferred embodiment of the present invention.
FIG. 3 is a schematic current diagram of the preferred embodiment of the present invention.
FIG. 4 is a diagram illustrating the steps of the preferred embodiment of the present invention.
FIG. 5 is a circuit diagram of the preferred embodiment of the present invention.
[ notation ] to show
Load element 1
Receiving assembly 2
Receiving element 21
Reception compensation element 22
Receiving resistance element 23
rectifier element 24
Wireless power supply assembly 3
Radiating element 31
power supply element 32
feed resonant element 33
A supply resistance element 34.
Detailed Description
To achieve the above objects and advantages, the present invention provides a technical means and a structure, which will be described in detail with respect to the preferred embodiments of the present invention as follows for fully understanding.
Referring to fig. 1 to 5, there are shown a charging schematic diagram to a circuit schematic diagram according to a preferred embodiment of the present invention, which can be clearly seen from the drawings that the present invention includes:
A load component 1, a plurality of receiving components 2, and a wireless power supply component 3, wherein the load component 1 is a battery in the embodiment, the receiving component 2 is located at one side of the load component 1 and electrically connected to two ends of the load component 1, and the wireless power supply component 3 is located at one side of the receiving component 2 and can supply power signals to the receiving component 2.
Each receiving component 2 includes a receiving element 21, a receiving compensation element 22, a receiving resistance element 23, and a rectifying element 24, wherein the receiving element 21 is located at a side adjacent to the wireless power supply component 3, the receiving component 21 is a receiving antenna, the receiving compensation element 22 is a capacitor located at a side of the receiving component 21 and electrically connected to the receiving component 21, the receiving resistance element 23 is also located at a side of the receiving component 21 and electrically connected to the receiving component 21, the rectifying element 24 is located at a side of the receiving compensation element 22 and the receiving resistance element 23, and the rectifying element 24 is electrically connected to the receiving compensation element 22, the receiving resistance element 23, and the load element 1.
The wireless power supply assembly 3 includes a transmitting element 31, a power supply element 32, a power supply resonant element 33, and a power supply resistive element 34, the transmitting element 31 is located at a side adjacent to the receiving assembly 2, the transmitting element 31 is a transmitting antenna, the power supply element 32 is located at a side of the transmitting element 31 and electrically connected to the transmitting element 31, the power supply resonant element 33 is a capacitor and located at a side of the transmitting element 31 and electrically connected to the transmitting element 31, the power supply resistive element 34 is also located at a side of the transmitting element 31 and electrically connected to the transmitting element 31, the power supply element 32 is located at a side of the power supply resonant element 33 and the power supply resistive element 34, and two ends of the power supply resonant element 33 and the power supply resistive element 34 are electrically connected to each other.
As can be understood from the above description, according to the corresponding cooperation of the structure, the plurality of receiving elements 2 can be utilized to receive the power supplied by the wireless power supply element 3, so as to achieve the effects of reducing the chance of overheating and increasing the charging efficiency, and the detailed description will be described below.
The method comprises the following steps:
(a) Electrically connecting each receiving assembly with a load element;
(b) the power supply element in the wireless power supply assembly gives a power supply signal to one side of each receiving assembly close to the wireless power supply assembly, and the power supply signal is tuned by the power supply resonance element in cooperation with the power supply resistance element and then transmitted to each receiving assembly by the transmitting element;
(c) the receiving element in the receiving component receives the power signal given by the wireless power supply component;
(d) the power signal received by each receiving device will be compensated by a receiving compensation device in each receiving component and a receiving resistance device.
Wherein the compensation formula is:
By setting the transmitting coil (wireless power supply unit) as a pure power unit and making the receiving coil (receiving unit) completely resonate by the above formula, the compensation capacitance (C rxi) of the receiving compensation element can be obtained as follows
Fig. 5 can be further combined, wherein;
C rxi and C rxn are compensation capacitors of the ith or nth receiving compensation element;
Omega is the frequency of system operation;
L rx is the resistance of the receiving element;
r rxi is the i-th receiving resistance element;
REC i is the ith rectifying element;
V tx is a power supply element;
C tx is a supply resonance element;
L tx is a radiating element;
r tx is a supply resistance element;
R L is a load element;
R REC is the resistance of the rectifying element;
I tx is the current emitted by the emitting element;
i rxn is the current received by the nth receiving element
m im is the mutual inductance between the receiving elements in each receiving assembly, where im is the mutual inductance between the ith receiving element and the mth receiving element, e.g., M 12 is the mutual inductance between the first receiving element and the second receiving element;
M tr is the mutual inductance between each receiving element of the wireless power supply assembly pair, wherein r is the mutual inductance between the r-th receiving element and the wireless power supply assembly, for example, Mt1 is the mutual inductance between the first receiving element of the wireless power supply assembly pair;
Therefore, the value of the receiving compensation element which needs to compensate the effect of the mutual inductance effect can be calculated by the above formula.
(e) The power signal compensated by the receiving compensation element is converted into a direct current power supply through a rectifying element, wherein the rectifying element can be one of a full-bridge rectifier, a D-type rectifier or an E-type rectifier;
(f) The rectified power signal is then added into the load element to charge the load element with the power signal.
because the invention uses a plurality of receiving components 2 to receive power signals and then transmits the power signals in a load element 1, and the power signals given by the wireless power supply component 3 are constant values, the signals received by each receiving component 2 are also constant values, but the power signals given to the load element 1 can be continuously increased by increasing the receiving components 2, thereby increasing the charging efficiency of the load element 1, and because the power signals received by each receiving component 2 are constant values, the power signals given by the receiving components 2 are not required to be increased due to the increased efficiency, the risk of overheating of the receiving components 2 can be reduced.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the present invention, therefore, the present invention should be construed as being covered by the appended claims and their equivalents.
therefore, the key point of the multi-receiving wireless charging system and the method thereof in improving the conventional technology is that:
The charging efficiency of the load device 1 is increased by using the plurality of receiving elements 2, and the plurality of receiving elements 2 improve the efficiency, but the received power signals are the same, so that the risk of overheating is avoided.
In summary, the multi-receiving wireless charging system and the method thereof of the present invention can achieve the effects and purposes thereof when used.
Claims (10)
1. A multi-receiving wireless charging system is characterized by mainly comprising:
a load element;
The receiving components are electrically connected with two ends of the load element respectively, each receiving component comprises a receiving element, a receiving compensation element, a receiving resistance element and a rectifying element, the receiving compensation element and the receiving resistance element are both positioned at one side of the receiving element, the rectifying element is positioned at one side of the receiving compensation element and the receiving resistance element, which deviates from the receiving element, the two ends of the receiving compensation element are electrically connected with the receiving element and the rectifying element respectively, the two ends of the receiving resistance element are also electrically connected with the receiving element and the rectifying element respectively, and one side of the rectifying element, which deviates from the receiving compensation element and the rectifying element, is electrically connected with the load element; and
A wireless power supply assembly for providing a power signal to the receiving assembly, the wireless power supply assembly being located at one side of the receiving assembly.
2. The multi-reception wireless charging system according to claim 1, wherein: the wireless power supply assembly comprises a transmitting element, a power supply resonance element and a power supply resistance element, wherein the transmitting element is positioned at one side adjacent to the receiving assembly, the power supply resonance element and the power supply resistance element are positioned between the power supply element and the transmitting element, two ends of the power supply resonance element are respectively and electrically connected with the power supply element and the transmitting element, and two ends of the power supply resistance element are also respectively and electrically connected with the power supply element and the transmitting element.
3. The multi-reception wireless charging system according to claim 2, wherein: the feed resonant element is a capacitor.
4. The multi-reception wireless charging system according to claim 1, wherein: the rectifying element is one of a full bridge rectifier, a D-type rectifier or an E-type rectifier.
5. The multi-reception wireless charging system according to claim 1, wherein: the receiving compensation element is a capacitor.
6. A multi-receiving wireless charging method is characterized by comprising the following steps:
(a) Electrically connecting a plurality of receiving components with a load element;
(b) the receiving component is close to one side of a wireless power supply element, and the wireless power supply component can provide power signals for each receiving component;
(c) the power signal is received by a receiving device in each receiving component;
(d) the power signal received by each receiving component will be compensated by a receiving compensation component in each receiving component and a receiving resistance component;
(e) the compensated power signal is rectified by a rectifying element in each receiving component;
(f) the power signal rectified by each rectifier element will be supplemented into the load element, so as to charge the load element by the power signal.
7. the multi-reception wireless charging method of claim 6, wherein: the wireless power supply component in the step (b) comprises a transmitting component, a power supply resonance component and a power supply resistance component, wherein two ends of the power supply component are electrically connected with the power supply resonance component and the power supply resistance component, one ends of the power supply resonance component and the power supply resistance component, which are far away from the power supply component, are electrically connected with the transmitting component, the power supply component can send a power supply signal, the power supply signal is tuned through the power supply resonance component and the power supply resistance component, and then the transmitting component transmits the power supply signal to each receiving component.
8. the multi-reception wireless charging method of claim 7, wherein: the feed resonant element is a capacitor.
9. The multi-reception wireless charging method of claim 6, wherein: the rectifying element in the step (E) is one of a full bridge rectifier, a D-type rectifier or an E-type rectifier.
10. the multi-reception wireless charging method of claim 6, wherein: the receiving compensation element in step (d) is a capacitor.
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