CN105680524A - Non-contact charging equipment - Google Patents
Non-contact charging equipment Download PDFInfo
- Publication number
- CN105680524A CN105680524A CN201610201369.8A CN201610201369A CN105680524A CN 105680524 A CN105680524 A CN 105680524A CN 201610201369 A CN201610201369 A CN 201610201369A CN 105680524 A CN105680524 A CN 105680524A
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- CN
- China
- Prior art keywords
- charging equipment
- receiving terminal
- charging
- charger according
- positioner
- Prior art date
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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
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
Abstract
The invention discloses non-contact charging equipment. The non-contact charging equipment comprises a transmitting end and a receiving end. The receiving end is electrically connected with a device to be charged; and the receiving end comprises a constant current control circuit. When the voltage of a battery of the device to be charged is smaller than a preset value, the receiving end outputs a 0.7-1.2 C constant current to the device to be charged. The charging equipment carries out non-contact charge through the transmitting end and the receiving end, so that the device to be charged does not need a cable port, and a waterproof and dustproof effect is achieved; the charging process has no cable limit, thereby preventing users from directly contacting a high-voltage power supply; and the constant current control circuit of the receiving end outputs the 0.7-1.2 C constant current to the device to be charged, and a low-voltage high-current charging mode can improve charge speed, so that charging time of the device to be charged is reduced.
Description
Technical field
The present invention relates to charger technical field, particularly relate to a kind of contactless charging equipment.
Background technology
Realizing charging for intelligence wearing terminal at present and have two ways: one is to use cable that it is carried out wired charging, and shortcoming is to need grafting charging wire, charging inconvenience, intelligence wearing terminal needs to offer charging inlet, is difficulty with the functions such as waterproof and dustproof; Another kind is that intelligence wearing terminal is carried out wireless charging by the mode by electromagnetic induction or coupling, and shortcoming is that charging rate is slow, and energy conversion efficiency is low.
Summary of the invention
It is an object of the invention to propose a kind of contactless charging equipment, charging equipment can be made without arranging cable socket, water proof and dust proof on the one hand, charging process limits without cable, it is to avoid user direct contact high voltage power supply; On the other hand, this charger can improve charging rate, reduces the charging interval of charging equipment.
For reaching this purpose, the present invention by the following technical solutions:
A kind of contactless charging equipment, including: transmitting terminal and receiving terminal, described receiving terminal electrically connects with charging equipment;
Described receiving terminal includes constant-current control circuit, and when the cell voltage of charging equipment is less than preset value, described receiving terminal exports the constant current of 0.7～1.2C to charging equipment.
Wherein, the described transmitting terminal host-host protocol by presetting, in the way of EMR electromagnetic resonance or coil coupling, transfer energy to receiving terminal.
Further, for keeping the frequency setting circuit that energy transmission frequency is constant when described transmitting terminal includes transferring energy to receiving terminal, the communication signal frequency of described energy transmission frequency and charging equipment differs.
Wherein, described receiving terminal also includes constant-voltage control circuit, when the cell voltage of charging equipment reaches preset value, with constant voltage, charging equipment is charged.
Wherein, transmitting terminal includes transmitting coil, and described transmitting coil diameter is 25～30mm, and emission inductance amount is 506uH, Q-value 60～80.
Wherein, receiving terminal includes receiving coil, and described receiving coil diameter is 20～25mm, and reception inductance value is 15～19uH, Q-value 20～30.
Further, described transmitting terminal is provided with the first positioner, and described receiving terminal is provided with the second positioner;During charging, described first positioner and the second positioner coordinate make described transmitting coil and receiving coil keep just to and predeterminable range.
Further, described charger also includes power supply adaptor, and described transmitting terminal is integrated with described power supply adaptor or passes through connection.
Further, described receiving terminal is integrated with charging equipment.
Wherein, the positive electrode of the battery of described charging equipment is the graininess cobalt acid lithium powder adopting ceramic coatings high voltage system, and electrolyte is add conductive agent in conventional PC and EMC, and negative material is graininess Delanium.
The invention have the benefit that
The present invention carries out contactless charging by transmitting terminal and receiving terminal, makes charging equipment without arranging cable socket, being more easily done water proof and dust proof, and charging process limits without cable, it is to avoid user direct contact high voltage power supply; The constant-current control circuit of receiving terminal exports the constant current of 0.7～1.2C to charging equipment, and the charging modes of low voltage and high current can improve charging rate, reduces the charging interval of charging equipment.
Accompanying drawing explanation
Fig. 1 is the structural representation of contactless charging equipment provided by the invention.
Fig. 2 is the electrical block diagram of contactless charging equipment provided by the invention.
Fig. 3 is the structural representation of the first positioner provided by the invention and the second positioner.
In figure: 1, charging equipment; 2, receiving terminal; 21, the second positioner; 3, transmitting terminal; 31, the first positioner.
Detailed description of the invention
For the technical scheme making to present invention solves the technical problem that, adopting and the technique effect reached clearly, below in conjunction with accompanying drawing, the technical scheme of the embodiment of the present invention is described in further detail, obviously, described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.
Fig. 1 is the structural representation of contactless charging equipment provided by the invention, as it is shown in figure 1, a kind of contactless charging equipment, with need the equipment of charging with the use of, including transmitting terminal 3 and receiving terminal 2.
The described transmitting terminal 3 host-host protocol by presetting, transfers energy to receiving terminal 2 in the way of EMR electromagnetic resonance or coil coupling.
Described charging equipment 1 includes the equipment of the internal batteries such as intelligent watch, Intelligent bracelet, bluetooth earphone, music player, recording pen. Described receiving terminal 2 electrically connects with charging equipment 1; Preferably, described receiving terminal 2 is integrated in the inside of described charging equipment 1.
The present embodiment carries out inductive charging by transmitting terminal and receiving terminal, making charging equipment without arranging cable socket, equipment entirety is more easily done water proof and dust proof, and charging process limits without cable, avoiding user direct contact high voltage power supply, user's hands also can guarantee that charging safety when wet.
Wherein, transmitting terminal 3 includes transmitting coil; Preferably, described transmitting coil diameter is 25～30mm, and emission inductance amount is 506uH, Q-value 60～80.
Wherein, receiving terminal 2 includes receiving coil; Preferably, described receiving coil diameter is 20～25mm, and reception inductance value is 15～19uH, Q-value 20～30.
Fig. 2 is the electrical block diagram of contactless charging equipment provided by the invention, as in figure 2 it is shown, described receiving terminal 2 includes constant-current control circuit 201, constant-voltage control circuit 202.
Described constant-current control circuit 201, when the cell voltage of charging equipment 1 is less than preset value, controls described receiving terminal 2 and exports the constant current (C is the battery capacity of charging equipment) of 0.7～1.2C to charging equipment 1.
Described constant-voltage control circuit 202, after the cell voltage of charging equipment 1 reaches preset value, controls described receiving terminal 2 and with constant voltage, charging equipment 1 is charged.
Described preset value is arranged according to the battery rated voltage of charging equipment 1, is generally the 70%～85% of rated voltage. Such as, when the battery rated voltage of charging equipment 1 is 5V, arranging its preset value is 4.2V, carries out constant-current charge when cell voltage is less than 4.2V, transfers constant-voltage charge to after reaching 4.2V.
In the present embodiment, the constant-current control circuit of described receiving terminal exports the constant current of 0.7～1.2C to charging equipment, is charged with the charging modes of low voltage and high current, it is possible to improve charging rate, reduces the charging interval; Simultaneously, after the cell voltage at charging equipment reaches preset value, with constant voltage, charging equipment being charged, charging current reduces, can effectively prevent from overcharging too high with battery temperature, to extending battery life, ensureing that charging safety has significant effect.
Described charging equipment 1 includes charging protection circuit 101, and for battery carrying out over-voltage and over-current protection, excess temperature protection, overcharge protection, crossing and put protection etc., described charging protection circuit 101 is easy to obtain from prior art.
The positive electrode of the battery of described charging equipment 1 is the graininess cobalt acid lithium powder adopting ceramic coatings high voltage system, and electrolyte is add conductive agent in conventional PC and EMC, and negative material is graininess Delanium. Under the quick charge environment of above-mentioned low voltage and high current, the material system of such battery ensure that charging safety and battery capacity loss are less.
For keeping the frequency setting circuit 301 that energy transmission frequency is constant when described transmitting terminal 3 includes transferring energy to receiving terminal, the communication signal frequency of described energy transmission frequency and charging equipment differs.
Described frequency setting circuit 301 can pass through to add filter element targetedly at transmitting terminal and realize, the directed interference got rid of signal of communication. Additionally, increase radome also by transmitting terminal, shield the energy transmission frequency identical with communication signal frequency so that it is do not leak, reach to prevent the effect of charging interference communication.
Described transmitting terminal 3 also includes DC-AC change-over circuit, and described DC-AC change-over circuit realizes DC-AC conversion by drive circuit and coil, strengthens the withstanding current capability of drive circuit and coil, it is possible to strengthen transmitting power. Accordingly, described receiving terminal 2 is to realize AC-DC conversion by coil and regulator rectifier circuit, strengthens the withstanding current capability of coil and regulator rectifier circuit, it is possible to strengthen and receive power. Increasing transmitting power is conducive to improving charging rate with accepting power, saves the charging interval.
Further, described charger also includes power supply adaptor 4, and described transmitting terminal 3 is integrated with described power supply adaptor 4 or passes through connection.
As the improvement of the present embodiment, as it is shown on figure 3, described transmitting terminal 3 is provided with the first positioner 31, described receiving terminal 2 is provided with the second positioner 21; During charging, the first positioner 31 and the second positioner 21 coordinate make described transmitting coil and receiving coil keep just to and predeterminable range. Fig. 3 is the structural representation of the first positioner provided by the invention and the second positioner, for intelligent watch, described receiving terminal 2 is integrated with described charging equipment 1 (i.e. intelligent watch), during charging, intelligent watch is placed on transmitting terminal 3, makes the first positioner 31 and the second positioner 21 be socketed.
Described transmitting coil and receiving coil keep just right, and distance 2～4 can make energy transmission efficiency significantly improve, reach more than 70%; Energy conversion rate is high, and more energy efficient, charging rate is faster.
Additionally, the first positioner 31 and the second positioner 21 can also is that magnetic part, the integrated inside with transmitting terminal 3 and receiving terminal 2 respectively; When the charging equipment 1 being equipped with receiving terminal 2 is placed on transmitting terminal 3, the first positioner 31 and the second positioner 21 are by together with magnetic absorption so that transmitting coil and receiving coil keep just to and predeterminable range.
The know-why of the present invention is described above in association with specific embodiment. These descriptions are intended merely to explanation principles of the invention, and can not be construed to limiting the scope of the invention by any way. Based on explanation herein, those skilled in the art need not pay performing creative labour can associate other detailed description of the invention of the present invention, and these modes fall within protection scope of the present invention.
Claims (10)
1. a contactless charging equipment, it is characterised in that including: transmitting terminal and receiving terminal, described receiving terminal electrically connects with charging equipment;
Described receiving terminal includes constant-current control circuit, and when the cell voltage of charging equipment is less than preset value, described receiving terminal exports the constant current of 0.7～1.2C to charging equipment.
2. charger according to claim 1, it is characterised in that: the described transmitting terminal host-host protocol by presetting, in the way of EMR electromagnetic resonance or coil coupling, transfer energy to receiving terminal.
3. charger according to claim 2, it is characterized in that, for keeping the frequency setting circuit that energy transmission frequency is constant when described transmitting terminal includes transferring energy to receiving terminal, the communication signal frequency of described energy transmission frequency and charging equipment differs.
4. charger according to claim 1, it is characterised in that described receiving terminal also includes constant-voltage control circuit, when the cell voltage of charging equipment reaches preset value, is charged charging equipment with constant voltage.
5. charger according to claim 1, it is characterised in that: transmitting terminal includes transmitting coil, and described transmitting coil diameter is 25～30mm, and emission inductance amount is 506uH, Q-value 60～80.
6. charger according to claim 5, it is characterised in that: receiving terminal includes receiving coil, and described receiving coil diameter is 20～25mm, and reception inductance value is 15～19uH, Q-value 20～30.
7. charger according to claim 6, it is characterised in that: described transmitting terminal is provided with the first positioner, and described receiving terminal is provided with the second positioner; During charging, described first positioner and the second positioner coordinate make described transmitting coil and receiving coil keep just to and predeterminable range.
8. charger according to claim 1, it is characterised in that: described charger also includes power supply adaptor, and described transmitting terminal is integrated with described power supply adaptor or passes through connection.
9. charger according to claim 1, it is characterised in that: described receiving terminal is integrated with charging equipment.
10. charger according to claim 1, it is characterized in that: the positive electrode of the battery of described charging equipment is the graininess cobalt acid lithium powder adopting ceramic coatings high voltage system, electrolyte is add conductive agent in conventional PC and EMC, and negative material is graininess Delanium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610201369.8A CN105680524A (en) | 2016-04-01 | 2016-04-01 | Non-contact charging equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610201369.8A CN105680524A (en) | 2016-04-01 | 2016-04-01 | Non-contact charging equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105680524A true CN105680524A (en) | 2016-06-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610201369.8A Pending CN105680524A (en) | 2016-04-01 | 2016-04-01 | Non-contact charging equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105680524A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018157371A1 (en) * | 2017-03-03 | 2018-09-07 | 小天才科技有限公司 | Non-contact charging device |
| CN109600173A (en) * | 2018-11-09 | 2019-04-09 | Oppo广东移动通信有限公司 | Interfere processing method, device, electronic equipment and storage medium |
| CN110168849A (en) * | 2017-04-07 | 2019-08-23 | Oppo广东移动通信有限公司 | Wireless charging method, device, system and charging equipment |
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| CN102157989A (en) * | 2011-03-28 | 2011-08-17 | 东南大学 | Closed loop wireless energy supply system for implantable medical electronic device |
| CN202050273U (en) * | 2011-05-13 | 2011-11-23 | 路华科技(深圳)有限公司 | Wireless charging emitter and receiver, as well as mobile phone cover |
| CN102545326A (en) * | 2011-12-30 | 2012-07-04 | 中兴通讯股份有限公司 | Wireless charging device and system and mobile terminal |
| CN102611215A (en) * | 2012-04-10 | 2012-07-25 | 海尔集团公司 | Wireless electric energy transmitting device and wireless charging system |
| CN103311539A (en) * | 2013-05-17 | 2013-09-18 | 深圳市慧通天下科技股份有限公司 | High-voltage high-energy-density lithium ion battery |
| CN203422610U (en) * | 2013-06-25 | 2014-02-05 | 潍坊歌尔电子有限公司 | Electronic watch with wireless charging function |
| CN204103550U (en) * | 2014-09-24 | 2015-01-14 | 深圳市泰正电子科技有限公司 | Lithium electricity wireless charging baffle |
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2016
- 2016-04-01 CN CN201610201369.8A patent/CN105680524A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102157989A (en) * | 2011-03-28 | 2011-08-17 | 东南大学 | Closed loop wireless energy supply system for implantable medical electronic device |
| CN202050273U (en) * | 2011-05-13 | 2011-11-23 | 路华科技(深圳)有限公司 | Wireless charging emitter and receiver, as well as mobile phone cover |
| CN102545326A (en) * | 2011-12-30 | 2012-07-04 | 中兴通讯股份有限公司 | Wireless charging device and system and mobile terminal |
| CN102611215A (en) * | 2012-04-10 | 2012-07-25 | 海尔集团公司 | Wireless electric energy transmitting device and wireless charging system |
| CN103311539A (en) * | 2013-05-17 | 2013-09-18 | 深圳市慧通天下科技股份有限公司 | High-voltage high-energy-density lithium ion battery |
| CN203422610U (en) * | 2013-06-25 | 2014-02-05 | 潍坊歌尔电子有限公司 | Electronic watch with wireless charging function |
| CN204103550U (en) * | 2014-09-24 | 2015-01-14 | 深圳市泰正电子科技有限公司 | Lithium electricity wireless charging baffle |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018157371A1 (en) * | 2017-03-03 | 2018-09-07 | 小天才科技有限公司 | Non-contact charging device |
| CN110168849A (en) * | 2017-04-07 | 2019-08-23 | Oppo广东移动通信有限公司 | Wireless charging method, device, system and charging equipment |
| CN110168849B (en) * | 2017-04-07 | 2023-11-17 | Oppo广东移动通信有限公司 | Wireless charging method, device, system and equipment to be charged |
| CN109600173A (en) * | 2018-11-09 | 2019-04-09 | Oppo广东移动通信有限公司 | Interfere processing method, device, electronic equipment and storage medium |
| CN109600173B (en) * | 2018-11-09 | 2021-08-17 | Oppo广东移动通信有限公司 | Interference processing method and device, electronic equipment and storage medium |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160615 |
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| RJ01 | Rejection of invention patent application after publication |