CN212195122U - Charging protection device for electric vehicle - Google Patents
Charging protection device for electric vehicle Download PDFInfo
- Publication number
- CN212195122U CN212195122U CN202020927748.7U CN202020927748U CN212195122U CN 212195122 U CN212195122 U CN 212195122U CN 202020927748 U CN202020927748 U CN 202020927748U CN 212195122 U CN212195122 U CN 212195122U
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- Prior art keywords
- resistor
- capacitor
- relay
- power
- temperature
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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
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
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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
- Y02T90/14—Plug-in electric vehicles
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- Protection Of Static Devices (AREA)
Abstract
The utility model discloses a charging protection device for an electric vehicle, which comprises a temperature fuse, a fuse tube, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, a temperature sensor, a flame sensor, a first capacitor, a second capacitor, a third capacitor, a fourth capacitor, a rectifier, a power-off relay, a diode, a voltage-stabilizing tube, a triode and a singlechip, wherein the first-level temperature sensor detects that the temperature in the charger abnormally rises to over 110 degrees, the singlechip controls the power-off relay to disconnect the alternating current input, if the first stage fails, the second stage flame sensor detects that burning flame exists inside or outside the charger, the singlechip controls the power-off relay to cut off the alternating current input, if the second stage fails, the alternating current input is cut off through the input temperature protective tube (142 degrees), so that the potential safety hazard (burning and firing accidents) of the electric vehicle charger is reduced.
Description
Technical Field
The utility model relates to an electric motor car field especially relates to a charging protection device for electric motor car.
Background
An electric vehicle charger is a device for charging an electric vehicle. The principle is to convert alternating current into direct current, thereby charging the battery of the electric vehicle. The charger for the electric vehicle in the related art is generally implemented by a rectifier filter, a voltage reduction or voltage regulation circuit and a current limiting circuit. In the related art, when the voltage is too high or a device fails (for example, water enters and the device is aged), potential safety hazards such as circuit burnout, combustion and fire are generated. In the electric vehicle charger in the related art, potential safety hazards such as circuit burnout, combustion, fire and the like exist when a fan fails or the electric vehicle is charged in a closed environment (such as a closed container for a vehicle and a closed seat barrel for the vehicle). Therefore, there is room for improvement.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a protection device that charges for electric motor car just in order to solve above-mentioned problem.
The utility model discloses a following technical scheme realizes above-mentioned purpose:
the utility model comprises a temperature fuse, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, a temperature sensor, a flame sensor, a first capacitor, a second capacitor, a third capacitor, a fourth capacitor, a rectifier, a power-off relay, a diode, a voltage regulator tube, a triode and a singlechip, wherein the first end of the temperature fuse is connected with the first end of an alternating current power supply, the second end of the temperature fuse is connected with the first end of the third resistor, the first end of the first capacitor and the first end of the power-off relay switch simultaneously, the second end of the power-off relay switch is connected with the first end of a power supply input end of a charger power supply, the first end of the fuse is connected with the second end of the alternating current power supply, the second end of the fuse is connected with the first input end of the rectifier and the second end of the power supply input end of the charger power supply simultaneously, the second input end of the rectifier is connected with the second end of the third resistor, the positive output end of the rectifier is simultaneously connected with the first end of the second capacitor, the first end of the third capacitor, the first end of the fourth resistor, the cathode of the diode and the first end of the coil of the power-off relay, the negative output end of the rectifier is simultaneously connected with the second end of the second capacitor, the second end of the third capacitor, the positive electrode of the voltage-regulator tube, the first end of the fourth capacitor, the emitter of the triode, the eighth pin of the singlechip, the first end of the temperature sensor and the first end of the flame sensor, the second end of the coil of the power-off relay is simultaneously connected with the positive electrode of the diode and the collector of the triode, the base of the triode is connected with the fifth pin of the singlechip through the fifth resistor, the second end of the fourth resistor is simultaneously connected with the cathode of the voltage-regulator tube, the second end of the fourth capacitor, the first end of the sixth resistor and the first end of the seventh resistor, the second end of the temperature sensor is simultaneously connected with the second end of the sixth resistor and the fourth pin, and the second end of the seventh resistor is connected with the second end of the flame sensor and the third pin of the singlechip simultaneously.
Further, the single chip microcomputer is MS83F0802A in model number.
The beneficial effects of the utility model reside in that:
the utility model relates to a charging protection device for electric motor car, compared with the prior art, the utility model discloses a first order temperature sensor detects the inside temperature anomaly of charger and rises to exceeding 110 degrees, single chip microcomputer control outage relay disconnection ac input, if under the condition that the first order became invalid, detect the inside or outside flame that has the burning of charger through second level flame sensor, single chip microcomputer control outage relay disconnection ac input, if under the condition that the second level became invalid, through input temperature protective tube (142 degrees) disconnection ac input to the potential safety hazard (burning fire accident) of electric motor car charger have been reduced.
Drawings
Fig. 1 is a schematic diagram of the circuit structure of the present invention.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings:
as shown in fig. 1: the utility model comprises a temperature fuse R1, a fuse R2, a third resistor R3, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, a seventh resistor R7, a temperature sensor R8, a flame sensor R9, a first capacitor C1, a second capacitor C2, a third capacitor C3, a fourth capacitor C4, a rectifier MB6S, a power-off relay FH32-10A250V, a diode D2, a voltage-stabilizing tube D, a triode Q1 and a single-chip U1, the first end of the temperature fuse is connected with the first end of an alternating current power supply, the second end of the temperature fuse is connected with the first end of the third resistor, the first end of the first capacitor is connected with the first end of a power-off switch, the second end of the power-off relay is connected with the first end of a power supply input end of a charger power supply, the first end of the fuse is connected with the second end of the first input end of the rectifier and the second end of the charger power supply input end of the charger, the second input end of the rectifier is connected with the second end of the third resistor and the second end of the first capacitor, the positive output end of the rectifier is connected with the first end of the second capacitor, the first end of the third capacitor, the first end of the fourth resistor, the negative electrode of the diode and the first end of the coil of the power-off relay, the negative output end of the rectifier is connected with the second end of the second capacitor, the second end of the third capacitor, the positive electrode of the voltage-regulator tube, the first end of the fourth capacitor, the emitter of the triode, the eighth pin of the single chip microcomputer, the first end of the temperature sensor and the first end of the flame sensor, the second end of the coil of the power-off relay is connected with the positive electrode of the diode and the collector of the triode, the base of the triode is connected with the fifth pin of the single chip microcomputer through the fifth resistor, the second end of the fourth resistor is connected with the negative electrode of the voltage-regulator, The first end of the sixth resistor and the first end of the seventh resistor are connected with a first pin of the single chip microcomputer, the second end of the temperature sensor is connected with the second end of the sixth resistor and a fourth pin of the single chip microcomputer, and the second end of the seventh resistor is connected with the second end of the flame sensor and a third pin of the single chip microcomputer.
Further, the single chip microcomputer is MS83F0802A in model number.
The alternating current input passes through the temperature protective tube, and the power-off relay is connected in series in the input loop of the charger. The singlechip controls the on and off of the power-off relay by acquiring parameters of the temperature sensor and the flame sensor. When the single chip microcomputer collects the temperature sensor, the temperature rises abnormally (exceeds the normal temperature record by 50 percent) to control the power-off relay to cut off the alternating current input. When the single chip microcomputer detects obvious flame through the acquisition flame sensor inside or outside the charger, the power-off relay is controlled to disconnect the alternating current input. When the power-off relay, the single chip microcomputer, the temperature sensor and the flame sensor are all out of work, the alternating current input is cut off through the temperature fuse tube so as to achieve the purpose of protection.
The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (2)
1. A charging protection device for an electric vehicle is characterized in that: the temperature fuse comprises a temperature fuse, a fuse tube, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, a temperature sensor, a flame sensor, a first capacitor, a second capacitor, a third capacitor, a fourth capacitor, a rectifier, a power-off relay, a diode, a voltage regulator tube, a triode and a singlechip, wherein the first end of the temperature fuse is connected with the first end of an alternating current power supply, the second end of the temperature fuse is simultaneously connected with the first end of the third resistor, the first end of the first capacitor and the first end of the power-off relay switch, the second end of the power-off relay switch is connected with the first end of a power supply input end of a charger power supply, the first end of the fuse tube is connected with the second end of the alternating current power supply, the second end of the fuse tube is simultaneously connected with the first input end of the rectifier and the second end of the power supply input end of the charger power supply, the second input end of the rectifier is simultaneously connected with, the positive output end of the rectifier is simultaneously connected with the first end of the second capacitor, the first end of the third capacitor, the first end of the fourth resistor, the cathode of the diode and the first end of the coil of the power-off relay, the negative output end of the rectifier is simultaneously connected with the second end of the second capacitor, the second end of the third capacitor, the positive electrode of the voltage-regulator tube, the first end of the fourth capacitor, the emitter of the triode, the eighth pin of the singlechip, the first end of the temperature sensor and the first end of the flame sensor, the second end of the coil of the power-off relay is simultaneously connected with the positive electrode of the diode and the collector of the triode, the base of the triode is connected with the fifth pin of the singlechip through the fifth resistor, the second end of the fourth resistor is simultaneously connected with the cathode of the voltage-regulator tube, the second end of the fourth capacitor, the first end of the sixth resistor and the first end of the seventh resistor, the second end of the temperature sensor is simultaneously connected with the second end of the sixth resistor and the fourth pin, and the second end of the seventh resistor is connected with the second end of the flame sensor and the third pin of the singlechip simultaneously.
2. The charging protection device for an electric vehicle according to claim 1, characterized in that: the model of the single chip microcomputer is MS83F 0802A.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020927748.7U CN212195122U (en) | 2020-05-27 | 2020-05-27 | Charging protection device for electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020927748.7U CN212195122U (en) | 2020-05-27 | 2020-05-27 | Charging protection device for electric vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212195122U true CN212195122U (en) | 2020-12-22 |
Family
ID=73812853
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020927748.7U Active CN212195122U (en) | 2020-05-27 | 2020-05-27 | Charging protection device for electric vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212195122U (en) |
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2020
- 2020-05-27 CN CN202020927748.7U patent/CN212195122U/en active Active
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