CN205846880U - A kind of foreign body identification device for wireless charging - Google Patents
A kind of foreign body identification device for wireless charging Download PDFInfo
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- CN205846880U CN205846880U CN201620694952.2U CN201620694952U CN205846880U CN 205846880 U CN205846880 U CN 205846880U CN 201620694952 U CN201620694952 U CN 201620694952U CN 205846880 U CN205846880 U CN 205846880U
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- foreign body
- wireless charging
- infrared sensor
- body identification
- identification device
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Abstract
This utility model relates to a kind of foreign body identification device for wireless charging, including infrared sensor, control unit, alarm drive circuit, display device, power supply and power delivery switches；Described power supply is for powering to described foreign body identification device, described infrared sensor electrically connects with the input of described control unit, and described alarm drive circuit, described display device and described power delivery switches outfan with described control unit respectively electrically connects；Electrically connecting in described power delivery switches with or without line charging device, described power delivery switches is for controlling the break-make of wireless charging device, and described infrared sensor is arranged on the power transmission region outer rim of wireless charging transmitting terminal and receiving terminal.This utility model uses infrared sensor to carry out wireless charging foreign body identification, is effectively utilized the feature of infrared sensor, the effectively identification to life entities such as the metal object in the electromagnetic field between transmitting terminal and receiving terminal and human or animals.
Description
Technical field
This utility model belongs to charging technique field, is specifically related to a kind of foreign body identification device for wireless charging.
Background technology
Wireless charging technology, through the technical research of several years, starts to be paid close attention to by all circles at present.Wireless charging refers to have
The power device of battery obtains electric power through the mode of wireless induction and is charged, owing to being no longer necessary to connect for electrical equipment
Charging wire so that charge more convenient.
Wireless charging can be applied and use battery powered product in portable digital product, electric automobile, robot etc.
Charging.Wireless charging uses electromagnetic induction principle, and the principle of system is identical with cooking electromagnetic oven, transmits energy through electromagnetic wave
Amount.
The AC signal sending and receiving generation sensing with corresponding coil in transmission and receiving terminal is charged.Cause
This, sending between receiving terminal coil, there is power electromagnet field, frequency between 100KHz～10MHz, when metal object or
When animal is positioned in this electromagnetic field, faradic current inside metal object, can be produced, form internal vortex, produce substantial amounts of heat
Amount, the serious metal object that can allow melts, and causes danger；Human body or animal are in large power, electrically magnetic field, such as electromagnetic field frequency
Higher, hydrone in health can be heated, human or animal is caused danger.
Simple and effective cannot carry out wireless charging foreign body identification, limit the popularization and application of wireless charging.If it is wireless
Metal in transmission region or animal body are not identified by charging, then cannot ensure the safety of charging, without under safe design
On emitter, place metallic foreign body may result in fire surprisingly, animal in region is caused danger, particularly big at needs
When powered radio can transmit, need brand-new safe design to complete wireless charging.
Utility model content
In view of this, the purpose of this utility model is to overcome the deficiencies in the prior art, it is provided that a kind of safe and practical and energy
The foreign body identification device for the wireless charging effectively metal in transmission region or animal body being identified.This utility model
It is mainly used in the identification to life entities such as the metal object in the electromagnetic field between transmitting terminal and receiving terminal and human or animals.
For realizing object above, this utility model adopts the following technical scheme that a kind of foreign body identification for wireless charging
Device, including infrared sensor, control unit, alarm drive circuit, display device, power supply and power delivery switches；
Described power supply is used for powering to described foreign body identification device, described infrared sensor and described control unit
Input electrically connects, and described alarm drive circuit, described display device and described power delivery switches control list with described respectively
The outfan electrical connection of unit；Electrically connecting with or without line charging device in described power delivery switches, described power delivery switches is used for
Controlling the break-make of wireless charging device, described infrared sensor is arranged on the power transmission range of wireless charging transmitting terminal and receiving terminal
Overseas edge.
Preferably, power transmission region is detected by described infrared sensor, and detection signal is sent to described control
Unit, when animal or thermal objects having been detected, then carries out alarm display by alarm drive circuit, meanwhile, controls described
Power delivery switches, stops power and sends.
Described infrared sensor is infra-red heat dependent sensor.The quantity of described infra-red heat dependent sensor is more than one.
Also include that audible-visual annunciator, described audible-visual annunciator electrically connect with described alarm drive circuit.Also include that AC/DC turns
Parallel operation, described AC/DC transducer electrically connects with described power supply.
The foreign body identification device that this utility model provides also includes foreign body cleaning machine, and described foreign body cleaning machine is for clear
Except the foreign body within power transmission region, described foreign body cleaning machine includes the tooth being arranged on described power transmission region edge
Bar, driving motor, gear and scraper plate, one end of described gear is fixed on the output shaft of described driving motor, described gear with
Tooth bar engages, and the other end of described gear is fixing with described scraper plate to be connected, and described scraper plate is across at described power transmission region
Surface.
This utility model uses above technical scheme, is electrically connected with the input of control unit by infrared sensor, will accuse
Alert drive circuit, display device and power delivery switches electrically connect with the outfan of control unit respectively；Infrared sensor is arranged
Power transmission region outer rim at wireless charging transmitting terminal Yu receiving terminal.Power transmission region is examined by described infrared sensor
Survey, detection signal is sent to described control unit, when animal or thermal objects having been detected, then by alarm drive circuit
Carry out alarm display, meanwhile, control described power delivery switches, stop power and send.This utility model uses infrared sensor
Carry out wireless charging foreign body identification, be effectively utilized the feature of infrared sensor, owing to animal self has temperature, can be by red
Outer sensor accurately identifies.Utilize trial charging mode, when not having animal to be positioned at power transmission region, sending and receiving terminal
Carry out short time trial charging, if intra-zone exists metal object, heat can be produced during trial charging, so infrared
Sensor detects.
Accompanying drawing explanation
Fig. 1 is the foreign body identification apparatus structure schematic diagram of this utility model wireless charging；
Fig. 2 is the foreign body identification device workflow diagram of this utility model wireless charging.
Detailed description of the invention
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
As it is shown in figure 1, this utility model provides a kind of foreign body identification device for wireless charging, including infrared sensing
Device, control unit, alarm drive circuit, display device, power supply and power delivery switches；Described power supply for
Described foreign body identification device is powered, and described infrared sensor electrically connects with the input of described control unit, and described alarm drives
Circuit, described display device and described power delivery switches outfan with described control unit respectively electrically connects；Described power
Electrically connecting on transmitting switch with or without line charging device, described power delivery switches is for controlling the break-make of wireless charging device, institute
State infrared sensor and be arranged on the power transmission region outer rim of wireless charging transmitting terminal and receiving terminal.
Power transmission region is detected by infrared sensor described in the present embodiment, and detection signal is sent to described control
Unit processed, when animal or thermal objects having been detected, then carries out alarm display by alarm drive circuit, meanwhile, controls institute
State power delivery switches, stop power and send.
Infrared sensor is a kind of sensor that ultrared physical property can be utilized to measure.Infrared ray also known as
Infrared light, have reflection, reflect, scatter, interfere, the character such as absorption.Any material, as long as itself having certain temperature
(higher than absolute zero), can infrared radiation.Infrared inductor is by infrared reflection principle, when the metal object of heating
Body animal is in infrared spectral range, and infrared thermistor is raised by temperature during infrared radiation, and resistance changes, by turning
Change circuit and become signal of telecommunication output.Directly do not contact with testee during measurement, have highly sensitive, the advantages such as response is fast.
Infrared sensor described in the present embodiment is infra-red heat dependent sensor.The quantity of described infra-red heat dependent sensor is one
More than individual.The present embodiment also including, audible-visual annunciator, described audible-visual annunciator electrically connect with described alarm drive circuit.Also wrap
Including AC/DC transducer, described AC/DC transducer electrically connects with described power supply.
Preferably expand scheme as one, the foreign body identification device that the present embodiment provides also includes foreign body cleaning machine,
Described foreign body cleaning machine is for removing foreign body power transmission region within, described in described foreign body cleaning machine includes being arranged on
The tooth bar at power transmission region edge, driving motor, gear and scraper plate, one end of described gear is fixed on described driving motor
On output shaft, described wheel and rack engages, and the other end of described gear and described scraper plate are fixed and be connected, described scraper plate across
The surface of described power transmission region.
As it is shown in figure 1, figure mid-infrared sensor uses infra-red heat dependent sensor.The merit with receiving terminal is sent at wireless charging
Rate transmission region outer rim, installation infrared sensor, infrared sensor carries out infrared acquisition to transmission region, when detect animal or
During thermal objects, the critesistor resistance in infrared sensor changes, after processing of circuit, and externally one state letter of output
Number, this status signal is detected by single-chip microcomputer, to determine whether that metal or animal are positioned at the power transmission of wireless charging
In region, if it has, then by alarm drive circuit, carry out alarm display, meanwhile, control power delivery switches, stop power
Send.
As in figure 2 it is shown, for being described in further detail this utility model, be first described as follows with regard to workflow of the present utility model:
Use infrared sensor to carry out wireless charging foreign body identification, be effectively utilized the feature of infrared sensor, due to dynamic
Thing self has temperature, can be accurately identified by infrared sensor.
First the life entity in power transmission region being detected, if having, carrying out alarm display by alarm drive circuit,
Meanwhile, control described power delivery switches, close power switch and stop power transmission.Life entity do not detected if, then carry out
Trial charging, utilizes trial charging mode, when not having animal to be positioned at power transmission region, carries out the short time sending with receiving terminal
Trial charging, if intra-zone exists metal object, can produce heat during trial charging, and then be detected by infrared sensor
Arrive.As long as when there is no life entity and metal in power transmission region when, the most really start charging.
Infrared sensor technology maturation, is widely used, and uses infrared sensor to carry out foreign body identification, can simply realize
Foreign body identification, circuit form is simple, and low cost is reliable and stable.This technical perfection supplements wireless charging and applies the peace faced
Full property design problem, the application for wireless charging provides strong safety guarantee.
This utility model is not limited to above-mentioned preferred forms, and anyone can draw under enlightenment of the present utility model
Other various forms of products, no matter but in its shape or structure, make any change, every have same as the present application or phase
The technical scheme of approximation, within all falling within protection domain of the present utility model.
Claims (7)
1. the foreign body identification device for wireless charging, it is characterised in that: include infrared sensor, control unit, alarm
Drive circuit, display device, power supply and power delivery switches；
Described power supply is used for powering to described foreign body identification device, described infrared sensor and the input of described control unit
End electrical connection, described alarm drive circuit, described display device and described power delivery switches respectively with described control unit
Outfan electrically connects；Electrically connecting with or without line charging device in described power delivery switches, described power delivery switches is used for controlling
The break-make of wireless charging device, described infrared sensor is arranged on outside the power transmission region of wireless charging transmitting terminal and receiving terminal
Edge.
Foreign body identification device for wireless charging the most according to claim 1, it is characterised in that: described infrared sensor
Power transmission region is detected, detection signal is sent to described control unit, when animal or thermal objects having been detected
Time, then carry out alarm display by alarm drive circuit, meanwhile, control described power delivery switches, stop power and send.
Foreign body identification device for wireless charging the most according to claim 1, it is characterised in that: described infrared sensor
For infra-red heat dependent sensor.
Foreign body identification device for wireless charging the most according to claim 3, it is characterised in that: described infrared temperature-sensitive passes
The quantity of sensor is more than one.
Foreign body identification device for wireless charging the most according to claim 1, it is characterised in that: also include sound and light alarm
Device, described audible-visual annunciator electrically connects with described alarm drive circuit.
Foreign body identification device for wireless charging the most according to claim 1, it is characterised in that: also include that AC/DC turns
Parallel operation, described AC/DC transducer electrically connects with described power supply.
7. according to the foreign body identification device for wireless charging described in any one of claim 1 to 6, it is characterised in that: also wrap
Including foreign body cleaning machine, described foreign body cleaning machine is for removing the foreign body within power transmission region, and described foreign body removes machine
Structure includes being arranged on the tooth bar at described power transmission region edge, driving motor, gear and scraper plate, and one end of described gear is fixed
On the output shaft of described driving motor, described wheel and rack engages, and the other end of described gear is fixing with described scraper plate even
Connecing, described scraper plate is across the surface at described power transmission region.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620694952.2U CN205846880U (en) | 2016-07-04 | 2016-07-04 | A kind of foreign body identification device for wireless charging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620694952.2U CN205846880U (en) | 2016-07-04 | 2016-07-04 | A kind of foreign body identification device for wireless charging |
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| Publication Number | Publication Date |
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| CN205846880U true CN205846880U (en) | 2016-12-28 |
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| CN201620694952.2U Active CN205846880U (en) | 2016-07-04 | 2016-07-04 | A kind of foreign body identification device for wireless charging |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108270299A (en) * | 2017-01-03 | 2018-07-10 | 现代自动车株式会社 | The equipment for detecting foreign matter of mobile laser is used in Wireless power transmission system |
| CN108855999A (en) * | 2017-05-12 | 2018-11-23 | 中惠创智无线供电技术有限公司 | A kind of wireless charging system transmitting coil plane foreign bodies detection processing unit |
| CN109398122A (en) * | 2018-09-14 | 2019-03-01 | 江苏万帮德和新能源科技股份有限公司 | A kind of charging bow active biological defensive system and working method |
| CN109950985A (en) * | 2017-12-21 | 2019-06-28 | 苏州宝时得电动工具有限公司 | The method and device thereof of wireless charging |
| CN110014970A (en) * | 2018-08-21 | 2019-07-16 | 江苏万帮德和新能源科技股份有限公司 | Charge robot and charging method |
-
2016
- 2016-07-04 CN CN201620694952.2U patent/CN205846880U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108270299A (en) * | 2017-01-03 | 2018-07-10 | 现代自动车株式会社 | The equipment for detecting foreign matter of mobile laser is used in Wireless power transmission system |
| CN108855999A (en) * | 2017-05-12 | 2018-11-23 | 中惠创智无线供电技术有限公司 | A kind of wireless charging system transmitting coil plane foreign bodies detection processing unit |
| CN109950985A (en) * | 2017-12-21 | 2019-06-28 | 苏州宝时得电动工具有限公司 | The method and device thereof of wireless charging |
| CN110014970A (en) * | 2018-08-21 | 2019-07-16 | 江苏万帮德和新能源科技股份有限公司 | Charge robot and charging method |
| CN109398122A (en) * | 2018-09-14 | 2019-03-01 | 江苏万帮德和新能源科技股份有限公司 | A kind of charging bow active biological defensive system and working method |
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| CP03 | Change of name, title or address |
Address after: 102600 building 7, yard 25, Jinghai 4th Road, Beijing Economic and Technological Development Zone, Daxing District, Beijing Patentee after: Beijing Jiajie Hengxin Energy Technology Co.,Ltd. Address before: 100000 Floor 3, Building 22, Yard 26, West Ring South Road, Daxing District Economic and Technological Development Zone, Beijing Patentee before: BEIJING CETPOWER CO.,LTD. |