CN110834562A - Automatic power-off protection device for electric vehicle charging - Google Patents
Automatic power-off protection device for electric vehicle charging Download PDFInfo
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- CN110834562A CN110834562A CN201911202935.7A CN201911202935A CN110834562A CN 110834562 A CN110834562 A CN 110834562A CN 201911202935 A CN201911202935 A CN 201911202935A CN 110834562 A CN110834562 A CN 110834562A
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- 238000001514 detection method Methods 0.000 claims abstract description 44
- 230000006978 adaptation Effects 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 3
- 230000005611 electricity Effects 0.000 description 3
- 238000005457 optimization Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/60—Monitoring or controlling charging stations
- B60L53/62—Monitoring or controlling charging stations in response to charging parameters, e.g. current, voltage or electrical charge
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/12—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to state of charge [SoC]
- B60L58/15—Preventing overcharging
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/12—Electric charging stations
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention provides an automatic power-off protection device for electric vehicle charging, belonging to the field of charging safety, comprising: charging wire socket, charged state detection module, microcomputer control module, outage execution module, charging plug. The protection device is arranged at the connection position of a charging power line and an electric vehicle, and the working principle is that an optocoupler relay is connected in series on a charging route, a charging state detection module provides charging state information and is controlled by a microcomputer control module, and when the charging is detected to be full, the microcomputer control module sends a route disconnection command to a power failure execution module, namely the charging route is disconnected.
Description
Technical Field
The invention belongs to the technical field of charging safety, and particularly relates to an automatic power-off protection device for charging of an electric vehicle.
Background
At present, the old-fashioned electric bicycle charging power adapter has an automatic cut-off function after being fully charged, and if the adapter forgets to cut off the power after being fully charged, continuous charging has potential safety hazards. The power-off protection device also exists in the prior art, but the connection between the charger and the socket is generally disconnected, but because the voltage at the connection position of the charger and the socket is 220V alternating current and is not transformed by the charger, the voltage and the current are not stable, the voltage fluctuation is large, and the large potential safety hazard still exists.
Disclosure of Invention
In order to solve the defects in the prior art, the invention aims to provide an automatic power-off protection device for electric vehicle charging, which is arranged at the joint of a charging power line and an electric vehicle, has small voltage and current, is relatively safe, and has relatively stable voltage and current through voltage transformation of a charger without worrying about the problem of voltage fluctuation.
In order to achieve the purpose, the invention adopts the specific scheme that:
an automatic power-off protection device for electric vehicle charging is connected in series between a charging power line and an electric vehicle charging socket; the protection device includes: the charging system comprises a charging line socket, a charging state detection module, a microcomputer control module, a power failure execution module and a charging plug;
the charging wire socket is a charging power supply input end, is connected with the power-off execution module and the charging power line plug in series, and is connected with the microcomputer control module in parallel;
the charging plug is matched with a charging socket of the electric vehicle and is a power output end;
the microcomputer control module is connected with the charging wire socket in parallel and used for obtaining a power supply required by work; the charging state detection module is connected with the charging state detection module to obtain charging state information; the power-off execution module is connected with the power-off execution module to realize the control of the power-off execution module;
the charging state detection module is used for detecting the charging state of the electric bicycle charging adapter and feeding detected charging detection information back to the microcomputer control module;
the power-off execution module is connected between the charging wire socket and the charging plug in series, controls the on-off of the charging route, and cuts off the charging route when receiving a power-off execution signal sent by the microcomputer control module, so that the charging work of the electric vehicle by the charger is stopped.
As a further optimization of the above solution, the microcomputer control module comprises: the system comprises a power supply adaptation module, a microcomputer control chip, a detection information input interface, an execution signal output interface and a working state indicator lamp; the power supply adaptation module is used for converting an alternating current power supply into a direct current power supply for self work and use; the microcomputer control chip is used for processing data information and issuing an execution command; the detection information input interface is used for accessing detection information of the charging state detection module; the execution signal output interface is used for outputting execution information of the power-off execution module; the working state indicator light is used for displaying the working state of the protection device. And the microcomputer control module sends a power-off execution instruction to the power-off module when the charging state detection module detects that the charging state of the charger is full.
As a further optimization of the above solution, the charging state detection module includes: a photosensor; the photoelectric sensor is installed at a charging indicator lamp of the electric bicycle charging adapter, the photoelectric sensor is connected with a detection information input interface of the microcomputer control module through a data transmission wire, and the photoelectric sensor acquires information of a charging state according to the change of the charging indicator lamp by detecting the charging indicator lamp on the electric bicycle charging adapter.
As a further optimization of the above solution, the power-off execution module includes: a normally open optocoupler relay; the controlled end of the relay is a charging route, the control end is connected with the execution signal output interface of the microcomputer control module, when the charging state detection device detects that the charging is not full, the microcomputer control module sends a switch-on command to close the relay, and when the charging state detection device detects that the charging is full, the microcomputer control module sends a switch-on command to open the relay.
Has the advantages that:
the protection device is arranged at the connection position of the charging wire and the electric vehicle, the voltage and the current are small, the protection device is safer compared with 220V alternating current connected with a socket, and the voltage and the current are stable because the voltage and the current are transformed by the charger, so that the problem of voltage fluctuation is not needed to be worried. The charging state detection module, the microcomputer control module and the power-off execution module used by the device have smaller voltage and current, so that the requirements on the voltage and the current which can be borne by each module are lower, and the manufacturing cost can be reduced. In addition, protection device can cut off the charging line after electric bicycle is full of the electricity, reduces the probability that the incident takes place, and is safer for other electric motor car protection device that charges.
Drawings
FIG. 1 is a schematic structural view of the present invention; wherein, the charging wire socket 1, the power-off execution module 2, the power supply adaptation module of the microcomputer control module 3, the microcomputer control module 4, the charging state detection module 5 and the charging plug 6 are connected with each other by a dotted line as a conducting wire;
FIG. 2 is a control flow diagram of the microcomputer control module.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The following is a preferred embodiment of the present invention for providing an automatic power-off device for charging an electric bicycle, which can solve the above technical problems.
Fig. 1 is a schematic structural diagram of a preferred embodiment of the present invention.
The preferred embodiment of the automatic power-off device of the electric bicycle charger provided by the invention is as follows: an electric bicycle charger automatic power-off device is established ties between charging power cord and electric motor car for automatic cutout power when the electric motor car is full of electricity includes: the charging system comprises a charging wire socket 1, a charging state detection module 5, a microcomputer control module 4, a power failure execution module 2 and a charging plug 6;
the charging wire socket 1 is a charging power supply input end, is connected with the power-off execution module 2 and the charging power line plug (charger plug) in series, and is connected with the microcomputer control module 4 in parallel and provides power supply;
the charging plug 6 is matched with a charging socket of the electric vehicle, is a power supply output end and outputs power supply to the electric vehicle;
the microcomputer control module 4 is connected with the charging wire socket 1 in parallel and is used for obtaining a power supply required by work; and is connected with the charging detection module 5 to obtain the charging state information; and is connected with the power-off execution module 2 to realize the control of the power-off execution module.
The microcomputer control module comprises: the charger comprises a power supply adaptation module (used for converting an alternating current power supply into a direct current power supply for self work, a microcomputer control chip (used for processing data information and issuing an execution command), a detection information input interface (used for detecting information access of a charging state detection module), an execution signal output interface (used for executing information output of a power failure execution module) and a working state indicator lamp, wherein the charging state detection module is used for sending a power failure execution instruction to the power failure module when detecting that the working state of the charger is full.
The charging state detection module 5 includes: a photosensor; the photoelectric sensor is connected with a detection information input interface of the microcomputer control module through a data transmission wire, acquires the charging state of the charger by detecting a charging indicator lamp on the electric bicycle charging adapter, and feeds detected charging detection information back to the microcomputer control module;
and the power-off execution module 2 is connected between the charging wire socket 1 and the charging plug 6 in series and plays a role in controlling the on-off of a charging route. The method is realized by the following steps: the outage execution module includes a normally open opto-coupler relay, and the controlled end of relay is the route of charging, the control end with 4 execution signal delivery outlets of microcomputer control module are connected, during the use the state of charge detection module detects when charging not full, microcomputer control module sends the switch-on order and makes the relay closed, when being full of the electricity, the state of charge detection module detects when charging full, through microcomputer control module sends outage execution signal, and the disconnection of normally open opto-coupler relay, the route of charging are cut off promptly, make the work of charger and storage battery car stop.
The working principle of the invention is that an optocoupler relay is connected in series on a charging route, a charging state detection module provides charging state information and is controlled by a microcomputer control module, and the charging route is disconnected when the charging is detected to be full.
When the protection device works, a plug of a charging point power line is connected with a charging wire socket 1, and a charging plug 6 is connected with a charging socket on the electric vehicle; a charging power supply is input through the charging wire socket 1, and a power supply is output to the electric vehicle through the charging plug 6; the charging state detection module firstly detects the charging state of the charging adapter, when the charging state is detected to be full through a charging indicator lamp on the charging adapter, detection information is fed back to the microcomputer control module, the protection device is started, and a working state indicator lamp on the microcomputer control module is turned on; the microcomputer control module immediately sends a power-off execution instruction to the power-off execution module, and the power-off execution module cuts off the charging route according to the received power-off execution instruction to realize power-off.
Claims (4)
1. The utility model provides an electric motor car automatic power-off protection device that charges which characterized in that: the protection device is connected between the charging power line and the charging socket of the electric vehicle in series; the protection device includes: the charging system comprises a charging line socket, a charging state detection module, a microcomputer control module, a power failure execution module and a charging plug;
the charging wire socket is a charging power supply input end, is connected with the power-off execution module and the charging power line plug in series, and is connected with the microcomputer control module in parallel;
the charging plug is matched with a charging socket of the electric vehicle and is a power output end;
the microcomputer control module is connected with the charging wire socket in parallel and used for obtaining a power supply required by work; the charging state detection module is connected with the charging state detection module to obtain charging state information; the power-off execution module is connected with the power-off execution module to realize the control of the power-off execution module;
the charging state detection module is used for detecting the charging state of the electric bicycle charging adapter and feeding detected charging detection information back to the microcomputer control module;
the power-off execution module is connected between the charging wire socket and the charging plug in series, controls the on-off of the charging route, and cuts off the charging route when receiving a power-off execution signal sent by the microcomputer control module, so that the charging work of the electric vehicle by the charger is stopped.
2. The automatic power-off protection device for electric vehicle charging according to claim 1, characterized in that: the microcomputer control module comprises: the system comprises a power supply adaptation module, a microcomputer control chip, a detection information input interface, an execution signal output interface and a working state indicator lamp; the power supply adaptation module is used for converting an alternating current power supply into a direct current power supply for self work and use; the microcomputer control chip is used for processing data information and issuing an execution command; the detection information input interface is used for accessing detection information of the charging state detection module; the execution signal output interface is used for outputting execution information of the power-off execution module; the working state indicator light is used for displaying the working state of the protection device.
3. The automatic power-off protection device for electric vehicle charging according to claim 1, characterized in that: the state of charge detection module includes: a photosensor; the photoelectric sensor is installed at a charging indicator lamp of the electric bicycle charging adapter, the photoelectric sensor is connected with a detection information input interface of the microcomputer control module through a data transmission wire, and the photoelectric sensor acquires information of a charging state according to the change of the charging indicator lamp by detecting the charging indicator lamp on the electric bicycle charging adapter.
4. The automatic power-off protection device for electric vehicle charging according to claim 1, characterized in that: the power-off execution module comprises: a normally open optocoupler relay; the controlled end of the relay is a charging route, the control end of the relay is connected with an execution signal output interface of the microcomputer control module, when the charging state detection device detects that charging is not full, the microcomputer control module sends a switch-on command to close the relay, and when the charging state detection device detects that charging is full, the microcomputer control module sends a switch-on command to open the relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911202935.7A CN110834562A (en) | 2019-11-29 | 2019-11-29 | Automatic power-off protection device for electric vehicle charging |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911202935.7A CN110834562A (en) | 2019-11-29 | 2019-11-29 | Automatic power-off protection device for electric vehicle charging |
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| CN110834562A true CN110834562A (en) | 2020-02-25 |
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| CN201911202935.7A Pending CN110834562A (en) | 2019-11-29 | 2019-11-29 | Automatic power-off protection device for electric vehicle charging |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102130487A (en) * | 2011-04-14 | 2011-07-20 | 上海埃士工业科技有限公司 | Portable charger for electric vehicle and design method thereof |
| CN204652012U (en) * | 2015-06-16 | 2015-09-16 | 董鑫 | Charging device energy saver |
| CN105762898A (en) * | 2014-12-15 | 2016-07-13 | 西安星云网络有限公司 | Intelligent mobile phone charger |
| CN106329588A (en) * | 2015-06-24 | 2017-01-11 | 襄阳市诸葛亮中学 | Mobile phone charger with indicator lights |
| CN107204651A (en) * | 2017-07-04 | 2017-09-26 | 常州机电职业技术学院 | Energy-saving circuit capable of automatically powering off after charger is full, working method and charger |
| CN207859962U (en) * | 2017-12-29 | 2018-09-14 | 西安理工大学 | Charger monitors power-off system automatically |
| CN211032237U (en) * | 2019-11-29 | 2020-07-17 | 河南科技大学 | Automatic power-off protection device for electric vehicle charging |
-
2019
- 2019-11-29 CN CN201911202935.7A patent/CN110834562A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102130487A (en) * | 2011-04-14 | 2011-07-20 | 上海埃士工业科技有限公司 | Portable charger for electric vehicle and design method thereof |
| CN105762898A (en) * | 2014-12-15 | 2016-07-13 | 西安星云网络有限公司 | Intelligent mobile phone charger |
| CN204652012U (en) * | 2015-06-16 | 2015-09-16 | 董鑫 | Charging device energy saver |
| CN106329588A (en) * | 2015-06-24 | 2017-01-11 | 襄阳市诸葛亮中学 | Mobile phone charger with indicator lights |
| CN107204651A (en) * | 2017-07-04 | 2017-09-26 | 常州机电职业技术学院 | Energy-saving circuit capable of automatically powering off after charger is full, working method and charger |
| CN207859962U (en) * | 2017-12-29 | 2018-09-14 | 西安理工大学 | Charger monitors power-off system automatically |
| CN211032237U (en) * | 2019-11-29 | 2020-07-17 | 河南科技大学 | Automatic power-off protection device for electric vehicle charging |
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