CN205753665U - A kind of power transmission system - Google Patents
A kind of power transmission system Download PDFInfo
- Publication number
- CN205753665U CN205753665U CN201620431777.8U CN201620431777U CN205753665U CN 205753665 U CN205753665 U CN 205753665U CN 201620431777 U CN201620431777 U CN 201620431777U CN 205753665 U CN205753665 U CN 205753665U
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Abstract
The utility model discloses a kind of power transmission system, it includes the wireless transmitting unit transferred out by input power by magnetic resonance mode and the radio receiving unit coupled with wireless transmitting unit；Wireless transmitting unit includes transmitting coil L1 and the transmitting resonant element of transmitting coil L1 electromagnetic induction and is parallel with the transmitting terminal amplification coil L3 of the first resonance compensation electric capacity C2；Radio receiving unit includes that the receiving terminal being parallel with the second resonance compensation electric capacity C3 amplifies coil L4 and for receiving the resonance coil unit of the electric power being amplified coil L4 transmission by receiving terminal；Resonance coil unit connects has one for measuring the sensor D of the energy being stored in resonance coil unit.This power transmission system efficiently solves the little and inefficient problem of electric power through-put power, can use in large-power occasions, and received electrical energy can be detected effectively in real time, can control to be supplied to the level of the electric power of load consistently simultaneously.
Description
Technical field
This utility model relates to power transmission technology field, is specifically related to a kind of power transmission system.
Background technology
Wireless power transmission: the electric power manufactured by power plant is converted into radio wave and sends, is collecting and is being converted to electric power by the specific device that receives by radio wave, for people to use.
At present, Contactless power transmission device power of the prior art is little, and efficiency is low, and transmission range is close, is mainly used in electronic equipment charging occasion, it is difficult to use in large-power occasions；And during power transmission, there is the problem that people cannot detect received electrical energy effectively in real time.
Utility model content
The purpose of this utility model is to provide a kind of power transmission system, to solve the little and inefficient problem of through-put power that the problems referred to above are mentioned.
For solving above-mentioned technical problem, this utility model provides a kind of power transmission system, and it includes the wireless transmitting unit transferred out by input power by magnetic resonance mode and the radio receiving unit coupled with wireless transmitting unit；Wireless transmitting unit includes transmitting coil L1 and the transmitting resonant element of transmitting coil L1 electromagnetic induction and is parallel with the transmitting terminal amplification coil L3 of the first resonance compensation electric capacity C2；Radio receiving unit includes that the receiving terminal being parallel with the second resonance compensation electric capacity C3 amplifies coil L4 and for receiving the resonance coil unit of the electric power being amplified coil L4 transmission by receiving terminal；Resonance coil unit connects has one for measuring the sensor D of the energy being stored in resonance coil unit.
Further, launch resonant element and include transmitting resonance coil L2, the first electric capacity C1 and the first resistance R1 of series connection.
Further, resonance coil unit includes reception resonance coil L5, the second electric capacity C4 of parallel connection and carries out the second switch S2 connected with parallel circuit；Receive and between resonance coil L5 and the second electric capacity C4, be provided with the second resistance R2 and first switch S1.
Further, resonance coil unit connects a DC/DC changer.
The beneficial effects of the utility model are: this power transmission system includes the wireless transmitting unit by being transferred out by input power and the radio receiving unit coupled with wireless transmitting unit in magnetic resonance mode, in being embodied as, the transmission of electric power is realized, the most accurately by magnetic resonance mode；Transmitting terminal amplifies coil L3 and the setting of receiving terminal amplification coil L4, expands through-put power；And transmitting terminal amplifies coil L3 and receiving terminal amplifies coil L4 and all utilizes respective resonance compensation electric capacity, is effectively improved mutual degree of coupling, improves efficiency of transmission；Resonance coil unit connects a sensor D, measures in real time and is stored in the energy in resonance coil unit；The setting of DC/DC changer simultaneously, can control to be supplied to the level of the electric power of load consistently.
Accompanying drawing explanation
Fig. 1 is the structural representation of power transmission system.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is clearly and completely described, it is clear that described embodiment is only a kind of embodiment of this utility model rather than whole embodiments.Based on the embodiment in this utility model, the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, broadly fall into protection domain of the present utility model.
As it is shown in figure 1, this power transmission system includes the wireless transmitting unit by being transferred out by input power and the radio receiving unit coupled with wireless transmitting unit in magnetic resonance mode；In being embodied as, magnetic resonance mode is to send the resonance in the magnetic field between the coil of resonance and the coil receiving resonance, is realized the transmission of electric power by magnetic resonance mode, the most accurately.
The wireless transmitting unit of this power transmission system includes transmitting coil L1 and the transmitting resonant element of transmitting coil L1 electromagnetic induction and is parallel with the transmitting terminal amplification coil L3 of the first resonance compensation electric capacity C2；In being embodied as, transmitting coil L1 is connected with input power so that electric current flows through transmitting coil L1；When electric current flows through transmitting coil L1, due to electromagnetic induction, the sensed transmitting resonant element spaced apart with transmitting coil L1 of electric current, use resonance that electric current is sent to transmitting terminal and amplify coil L3.
In being embodied as, the resonant element of launching of this power transmission system includes transmitting resonance coil L2, the first electric capacity C1 and the first resistance R1 of series connection；Wherein, the first resistance R1 can represent the amount owing to launching the loss power caused by resonance coil L2.
The radio receiving unit of this power transmission system includes that the receiving terminal being parallel with the second resonance compensation electric capacity C3 amplifies coil L4 and for receiving the resonance coil unit of the electric power being amplified coil L4 transmission by receiving terminal；In being embodied as, amplifying coil L3 by transmitting terminal and receiving terminal amplifies coil L4 and expands through-put power, and transmitting terminal amplifies coil L3 and is parallel with the first resonance compensation electric capacity C2, receiving terminal amplifies coil L4 and is parallel with the second resonance compensation electric capacity C3；Transmitting terminal amplifies coil L3 and receiving terminal amplifies coil L4 and all utilizes respective resonance compensation electric capacity, is effectively improved mutual degree of coupling, improves efficiency of transmission.
The resonance coil unit of this power transmission system includes reception resonance coil L5, the second electric capacity C4 of parallel connection and carries out the second switch S2 connected with parallel circuit；Receive and between resonance coil L5 and the second electric capacity C4, be provided with the second resistance R2 and first switch S1.
Wherein, the second resistance R2 is as the parasitic resistor of reception resonance coil L5, and the second electric capacity C4 is as the capacitor parasitics receiving resonance coil L5；First switch S1 controls to receive resonance coil L5 and the connection break-make of the second electric capacity C4, if the first switch S1 is in open mode, then receives resonance coil L5 and the second electric capacity C4 and is not connected with each other；Second switch S2 controls the connection break-make of the second electric capacity C4 and load, if second switch S2 is in open mode, then the second electric capacity C4 and load are not connected with each other.
In being embodied as, when the first switch S1 is in closure state, and second switch S2 is when being in open mode, i.e. reception resonance coil L5 and the second electric capacity C4 is connected with each other and the second electric capacity C4 is not connected with each other with load, then it is stored in the energy major part received in resonance coil L5 and is sent to the second electric capacity C4, being stored in the second electric capacity C4, load does not receive electric power.
When the first switch S1 is in open mode, and second switch S2 is when being in closure state, i.e. reception resonance coil L5 is in open-circuit condition and the second electric capacity C4 is connected with each other with load, and the electric current then flowing through receiving coil L5 becomes 0, and effective power becomes close to 0；The energy being stored in the second electric capacity C4 is sent to load, load-receipt electric power.
Therefore, the first switch S1 closed so that receiving resonance coil L5 and the second electric capacity C4 and being connected with each other in the very first time, and second switch S2 disconnects so that the second electric capacity C4 is not connected with each other with load；Now, receive resonance coil L5 with magnetic resonance type from power from outside, but do not provide power to load, and the energy receiving resonance coil L5 is stored in the second electric capacity C4；Due to this situation and load, to be not present in receiving the situation of side of resonance coil L5 essentially identical, therefore need not impedance matching.
When first switch S1 second different from the very first time time separated so that receive resonance coil L5 and the second electric capacity C4 be not connected to mutually, and second switch S2 Guan Bi so that the second electric capacity C4 is connected with each other with load；Now, electric power is received while the energy during load-receipt is stored in the second electric capacity C4.
The resonance coil unit of this power transmission system connects a sensor D, is stored in the energy in resonance coil unit for measuring；In being embodied as, sensor D can be not only used for measuring flowing through and receives the electric current of resonance coil L5 it can also be used to measure at the voltage being parallel-connected to receive the second electric capacity C4 two ends of resonance coil L5.
In being embodied as, when being measured the electric current flowing through reception resonance coil L5 by sensor D and being in peak value, disconnect the first switch S1, close second switch S2；When the voltage being measured the second electric capacity C4 two ends by sensor D is in peak value, disconnects the first switch S1, close second switch S2；Therefore, regardless of the size loaded, receive resonance coil L5 and all can transmit the energy of coming by efficient reception, and need not impedance matching.
Resonance coil unit connects a DC/DC changer, for controlling from the level receiving the electric power that resonance coil L5 provides, and the electric power of control is supplied to load；In being embodied as, by DC/DC changer, can control to be supplied to the level of the electric power of load consistently.
In sum, this power transmission system efficiently solves the little and inefficient problem of electric power through-put power, can use in large-power occasions, and received electrical energy can be detected effectively in real time, can control to be supplied to the level of the electric power of load simultaneously consistently.
Described above to the disclosed embodiments, makes professional and technical personnel in the field be capable of or uses this utility model.Multiple amendment to these embodiments will make for those skilled in the art it will be apparent that generic principles defined herein can realize in the case of without departing from the spirit or scope of utility model in other embodiments.Therefore, this utility model will not be limited and the embodiments shown herein, and is to fit to the widest scope consistent with principles disclosed herein and novel features.
Claims (4)
1. a power transmission system, it is characterised in that: include the wireless transmitting unit transferred out by input power by magnetic resonance mode and the radio receiving unit coupled with described wireless transmitting unit；Described wireless transmitting unit includes transmitting coil L1 and the transmitting resonant element of described transmitting coil L1 electromagnetic induction and is parallel with the transmitting terminal amplification coil L3 of the first resonance compensation electric capacity C2；
Described radio receiving unit includes that the receiving terminal being parallel with the second resonance compensation electric capacity C3 amplifies coil L4 and for receiving the resonance coil unit of the electric power being amplified coil L4 transmission by receiving terminal；Described resonance coil unit connects has one for measuring the sensor D of the energy being stored in described resonance coil unit.
Power transmission system the most according to claim 1, it is characterised in that: described transmitting resonant element includes transmitting resonance coil L2, the first electric capacity C1 and the first resistance R1 of series connection.
Power transmission system the most according to claim 1 and 2, it is characterised in that: described resonance coil unit includes reception resonance coil L5, the second electric capacity C4 of parallel connection and carries out the second switch S2 connected with parallel circuit；The second resistance R2 and first switch S1 it is provided with between described reception resonance coil L5 and the second electric capacity C4.
Power transmission system the most according to claim 3, it is characterised in that: described resonance coil unit connects a DC/DC changer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620431777.8U CN205753665U (en) | 2016-05-13 | 2016-05-13 | A kind of power transmission system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620431777.8U CN205753665U (en) | 2016-05-13 | 2016-05-13 | A kind of power transmission system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205753665U true CN205753665U (en) | 2016-11-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620431777.8U Expired - Fee Related CN205753665U (en) | 2016-05-13 | 2016-05-13 | A kind of power transmission system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205753665U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107359704A (en) * | 2017-08-23 | 2017-11-17 | 池州睿成微电子有限公司 | A kind of energy supply system for sensor multinode |
| CN114301189A (en) * | 2021-12-30 | 2022-04-08 | 河北工业大学 | Wireless receiving coil circuit that charges |
-
2016
- 2016-05-13 CN CN201620431777.8U patent/CN205753665U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107359704A (en) * | 2017-08-23 | 2017-11-17 | 池州睿成微电子有限公司 | A kind of energy supply system for sensor multinode |
| CN114301189A (en) * | 2021-12-30 | 2022-04-08 | 河北工业大学 | Wireless receiving coil circuit that charges |
| CN114301189B (en) * | 2021-12-30 | 2023-08-11 | 河北工业大学 | Wireless receiving coil circuit that charges |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161130 Termination date: 20170513 |