CN215244367U - CC (communication center) awakening circuit of electric automobile - Google Patents
CC (communication center) awakening circuit of electric automobile Download PDFInfo
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- CN215244367U CN215244367U CN202023097636.2U CN202023097636U CN215244367U CN 215244367 U CN215244367 U CN 215244367U CN 202023097636 U CN202023097636 U CN 202023097636U CN 215244367 U CN215244367 U CN 215244367U
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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
- Y02T90/14—Plug-in electric vehicles
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model discloses an electric automobile CC awakens circuit up, the utility model discloses in: the output end of the charging wake-up circuit is electrically connected with the input end of the power switch circuit; the output end of the power switch circuit is connected with the direct-current power conversion circuit; the output end of the direct current power supply conversion circuit is respectively connected with the CC acquisition circuit and the MCU circuit to supply power to the CC acquisition circuit and the MCU circuit; after receiving the CC signal of the charging gun, the charging wake-up circuit transmits a CC _ OPEN signal to the power switch circuit; the CC acquisition circuit acquires a CC signal of the charging gun and transmits an AD _ CC signal to the MCU control circuit; the MCU circuit transmits an ignition holding signal to the DC switch circuit. The utility model discloses a set up the wake-up circuit that charges after the battery management system is awaken up for a short time when the vehicle charges, the ignition that is exported by MCU control circuit keeps the signal take-over to awaken up to the end of filling slowly, MCU stops to export the ignition and keeps the signal, realizes that the battery management system is down electrified after the end of charging; the CC _ OPEN signal is asserted low by the capacitor C661 in cooperation with transistor Q11, turning off the wake-up function.
Description
Technical Field
The utility model belongs to the technical field of electric automobile, especially, relate to an electric automobile CC wake-up circuit.
Background
According to GBT 18487.1-2015 electric automobile conduction charging system part 1 general requirement, fill slowly and fill electric pile after the charge, BMS gets into the sleep mode, and the current CC that fills soon, fills slowly and awaken circuit has following problem: 1. the charger has no CC awakening function, when a customer charges, if the charging awakening function is abnormal, the BMS cannot enter a working state, the charging start fails, and the charging gun is repeatedly plugged and unplugged for many times, so that the customer is not well impressed, and the customer complains and complains. 2. Ordinary CC awakening circuit only is responsible for awakening up BMS, does not have disconnected function, after charging, if do not extract the rifle that charges, BMS will be unable to get into sleep mode, and CC awakening circuit lasts awakens up battery management system, will probably arouse electric automobile 12V lead-acid storage battery insufficient voltage, and the customer is when using the vehicle next time, and the vehicle can't start, causes the customer to complain, complains.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an electric automobile CC awakens circuit up, through, has solved current problem.
In order to solve the technical problem, the utility model discloses a realize through following technical scheme:
the utility model relates to an electric automobile CC wake-up circuit, include: the charging wake-up circuit comprises a charging wake-up circuit, a power switch circuit, a direct current power supply conversion circuit, a CC acquisition circuit and an MCU control circuit; the output end of the charging wake-up circuit is electrically connected with the input end of the power switch circuit; the output end of the power switch circuit is electrically connected with the direct-current power conversion circuit; the output end of the direct current power supply conversion circuit is respectively connected with the CC acquisition circuit and the MCU circuit to supply power to the CC acquisition circuit and the MCU circuit; after the charging wake-up circuit receives the CC signal of the charging gun, the CC _ OPEN signal is transmitted to the power switch circuit; the CC acquisition circuit acquires a CC signal of the charging gun and transmits an AD _ CC signal to the MCU control circuit; the MCU circuit transmits an ignition holding signal to the direct current switch circuit;
the charging wake-up circuit comprises a triode Q3; the emitter of the triode Q3 is connected with a 5V voltage source; the base electrode of the triode Q3 is respectively connected with the S _ CHARGE _ CC end and the Q _ CHARGE _ CC end of the charging gun; the base electrode of the triode Q3 is also connected with a resistor R22-5V voltage source in series; the collector of the triode Q3 outputs a CC _ OPEN signal to the power switch circuit;
after the charging wake-up circuit is connected with a charging gun, an S _ CHARGE _ CC signal or a Q _ CHARGE _ CC signal is connected, and the triode Q3 is conducted to output a CC _ OPEN signal to the power switch circuit;
the power switching circuit comprises a transistor Q11; the collector of the triode Q11 is connected with the collector of the triode Q3; the emitter of the triode Q11 is grounded; a resistor R611 is connected in series between the base electrode and the emitter electrode of the triode Q11; a resistor R612 is connected in series between the base electrode and the collector electrode of the triode Q11; and a capacitor C661 is connected between the base and the collector of the triode Q11.
Further, the base of the triode Q3 is connected in series with a resistor R20 and a diode D13 to the end of S _ CHARGE _ CC; the anode of the diode D13 is connected with the resistor R20, and the cathode of the diode D13 is connected with the end S _ CHARGE _ CC; the base electrode of the triode Q3 is also connected in series with a resistor R21 and a diode D14 to a Q _ CHARGE _ CC end, the anode of the diode D14 is connected with a resistor R21, and the cathode of the diode D14 is connected with the Q _ CHARGE _ CC end; the diode D13 and the diode D14 are both BAS 21.
Further, the triode Q3 is a PNP triode; the transistor Q11 is an NPN transistor.
Further, the S _ CHARGE _ CC end and the Q _ CHARGE _ CC end of the charging gun are both grounded ends; and the S _ CHARGE _ CC end and the Q _ CHARGE _ CC end are both grounding modules which are connected in series with a resistor with the resistance value of 1K omega.
The utility model discloses following beneficial effect has:
the utility model discloses a set up the wake-up circuit that charges after the battery management system is awaken up for a short time when the vehicle charges, the ignition that is exported by battery management system MCU control circuit keeps the signal connection pipe to awaken up until the end of slow charging, MCU stops to export the ignition and keeps the signal, realizes the battery management system power-off function after the end of charging; the CC _ OPEN signal is asserted low by the capacitor C661 in cooperation with transistor Q11, turning off the wake-up function.
Of course, it is not necessary for any particular product to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a system block diagram of a fast charge CC and slow charge CC wake-up circuit of an electric vehicle;
fig. 2 is a circuit diagram of a power switch circuit of the charge wake-up circuit and the power switch circuit.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1-2, the present invention relates to a CC wake-up circuit for an electric vehicle, comprising: the charging wake-up circuit comprises a charging wake-up circuit, a power switch circuit, a direct current power supply conversion circuit, a CC acquisition circuit and an MCU control circuit;
the output end of the charging wake-up circuit is electrically connected with the input end of the power switch circuit; the output end of the power switch circuit is electrically connected with the direct-current power conversion circuit; the output end of the direct current power supply conversion circuit is respectively connected with the CC acquisition circuit and the MCU circuit to supply power to the CC acquisition circuit and the MCU circuit;
after receiving the CC signal of the charging gun, the charging wake-up circuit transmits a CC _ OPEN signal to the power switch circuit;
the CC acquisition circuit acquires a CC signal of the charging gun and transmits an AD _ CC signal to the MCU control circuit; the MCU circuit transmits an ignition holding signal to the direct current switch circuit;
as shown in fig. 2, the charge wake-up circuit includes a transistor Q3; the emitter of the triode Q3 is connected with a 5V voltage source; the base electrode of the triode Q3 is respectively connected with the S _ CHARGE _ CC end and the Q _ CHARGE _ CC end of the charging gun; the base electrode of the triode Q3 is connected in series with a resistor R20 and a diode D13 to the end of S _ CHARGE _ CC; the anode of the diode D13 is connected with the resistor R20, and the cathode of the diode D13 is connected with the end S _ CHARGE _ CC; the base electrode of the triode Q3 is also connected in series with a resistor R21 and a diode D14 to a Q _ CHARGE _ CC end, the anode of the diode D14 is connected with the resistor R21, and the cathode of the diode D14 is connected with the Q _ CHARGE _ CC end; the diode D13 and the diode D14 are both BAS 21; the S _ CHARGE _ CC end and the Q _ CHARGE _ CC end of the charging gun are both grounded ends; the S _ CHARGE _ CC end and the Q _ CHARGE _ CC end are both grounding modules which are connected in series with a resistor with the resistance value of 1K omega; the base electrode of the triode Q3 is also connected with a resistor R22-5V voltage source in series; the collector of the transistor Q3 outputs the CC _ OPEN signal to the power switch circuit; when a customer inserts a charging gun, an S _ CHARGE _ CC signal/Q _ CHARGE _ CC signal is accessed, the triode Q3 is opened, and the voltage of CC _ OPEN becomes high level;
after the charging wake-up circuit is connected with a charging gun, an S _ CHARGE _ CC signal or a Q _ CHARGE _ CC signal is connected, and the triode Q3 is conducted to output a CC _ OPEN signal to the power switch circuit; the power switching circuit comprises a transistor Q11; the collector of the triode Q11 is connected with the collector of the triode Q3; the emitter of the triode Q11 is grounded; a resistor R611 is connected in series between the base electrode and the emitter electrode of the triode Q11; a resistor R612 is connected in series between the base electrode and the collector electrode of the triode Q11; a capacitor C661 is connected between the base and collector of the triode Q11; the S _ CHARGE _ CC signal or the Q _ CHARGE _ CC signal respectively corresponds to a slow charging gun and a fast charging gun;
wherein, the triode Q3 is a PNP triode; the triode Q11 is an NPN triode, and the resistances of the resistor R20, the resistor R21 and the resistor R612 are all 10 Komega; the resistance value of the resistor R22 is 100K omega; the resistance value of the resistor R611 is 22K Ω.
The first embodiment is as follows: the embodiment is a working principle of an electric vehicle CC wake-up circuit: when a customer inserts a charging gun, an S _ CHARGE _ CC signal/Q _ CHARGE _ CC signal is connected, the triode Q3 is turned on, the CC _ OPEN voltage becomes high level, a power switch circuit is turned on, the BMS starts to work, after the BMS works, the ignition keeping signal of the BMS is turned on, due to the charging effect of the capacitor C661, the triode Q11 is turned on slowly, and then the triode is conducted, the CC _ OPEN is set low, and the awakening function is not played.
In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.
Claims (4)
1. The utility model provides an electric automobile CC awakens circuit which characterized in that includes: the charging wake-up circuit comprises a charging wake-up circuit, a power switch circuit, a direct current power supply conversion circuit, a CC acquisition circuit and an MCU control circuit;
the output end of the charging wake-up circuit is electrically connected with the input end of the power switch circuit; the output end of the power switch circuit is electrically connected with the direct-current power conversion circuit; the output end of the direct current power supply conversion circuit is respectively connected with the CC acquisition circuit and the MCU circuit to supply power to the CC acquisition circuit and the MCU circuit;
after the charging wake-up circuit receives the CC signal of the charging gun, the CC _ OPEN signal is transmitted to the power switch circuit;
the CC acquisition circuit acquires a CC signal of the charging gun and transmits an AD _ CC signal to the MCU control circuit; the MCU circuit transmits an ignition holding signal to the direct current switch circuit;
the charging wake-up circuit comprises a triode Q3; the emitter of the triode Q3 is connected with a 5V voltage source; the base electrode of the triode Q3 is respectively connected with the S _ CHARGE _ CC end and the Q _ CHARGE _ CC end of the charging gun; the base electrode of the triode Q3 is also connected with a resistor R22-5V voltage source in series; the collector of the triode Q3 outputs a CC _ OPEN signal to the power switch circuit;
after the charging wake-up circuit is connected with a charging gun, an S _ CHARGE _ CC signal or a Q _ CHARGE _ CC signal is connected, and the triode Q3 is conducted to output a CC _ OPEN signal to the power switch circuit;
the power switching circuit comprises a transistor Q11; the collector of the triode Q11 is connected with the collector of the triode Q3; the emitter of the triode Q11 is grounded; a resistor R611 is connected in series between the base electrode and the emitter electrode of the triode Q11; a resistor R612 is connected in series between the base electrode and the collector electrode of the triode Q11; and a capacitor C661 is connected between the base and the collector of the triode Q11.
2. The CC wake-up circuit for the electric vehicle as claimed in claim 1, wherein the base of the transistor Q3 is connected in series with a resistor R20 and a diode D13 to the end of S _ CHARGE _ CC;
the base of the triode Q3 is also connected in series with a resistor R21 and a diode D14 to the end Q _ CHARGE _ CC.
3. The CC wake-up circuit for the electric vehicle as claimed in claim 1, wherein the transistor Q3 is a PNP transistor; the transistor Q11 is an NPN transistor.
4. The electric vehicle CC wake-up circuit of claim 1, wherein the S _ CHARGE _ CC terminal and the Q _ CHARGE _ CC terminal of the charging gun are both grounded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023097636.2U CN215244367U (en) | 2020-12-21 | 2020-12-21 | CC (communication center) awakening circuit of electric automobile |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023097636.2U CN215244367U (en) | 2020-12-21 | 2020-12-21 | CC (communication center) awakening circuit of electric automobile |
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| CN215244367U true CN215244367U (en) | 2021-12-21 |
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| CN202023097636.2U Active CN215244367U (en) | 2020-12-21 | 2020-12-21 | CC (communication center) awakening circuit of electric automobile |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112622656A (en) * | 2020-12-21 | 2021-04-09 | 安徽贵博新能科技有限公司 | CC (communication center) awakening circuit of electric automobile |
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- 2020-12-21 CN CN202023097636.2U patent/CN215244367U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112622656A (en) * | 2020-12-21 | 2021-04-09 | 安徽贵博新能科技有限公司 | CC (communication center) awakening circuit of electric automobile |
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