CN112373326A - Self-adaptive charging circuit system of low-voltage auxiliary power supply 12V24V charging pile - Google Patents
Self-adaptive charging circuit system of low-voltage auxiliary power supply 12V24V charging pile Download PDFInfo
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- CN112373326A CN112373326A CN202011382233.4A CN202011382233A CN112373326A CN 112373326 A CN112373326 A CN 112373326A CN 202011382233 A CN202011382233 A CN 202011382233A CN 112373326 A CN112373326 A CN 112373326A
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- 230000003044 adaptive effect Effects 0.000 claims description 10
- 238000006243 chemical reaction Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 description 14
- 230000008569 process Effects 0.000 description 10
- 230000006978 adaptation Effects 0.000 description 5
- 230000009471 action Effects 0.000 description 3
- 238000012790 confirmation Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
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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
- B60L53/20—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 characterised by converters located in the vehicle
- B60L53/22—Constructional details or arrangements of charging converters specially adapted for charging electric vehicles
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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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- 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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- 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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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention discloses a self-adaptive charging circuit system of a charging pile of a low-voltage auxiliary power supply 12V24V, which relates to the field of electric circuits and comprises a solid-state relay arranged in a high-voltage charging circuit of a vehicle, wherein the input end of the solid-state relay is connected with the output end of the low-voltage auxiliary power supply of the charging pile so as to convert the voltage output by the low-voltage auxiliary power supply of the charging pile based on wide voltage characteristics, and the output end of the solid-state relay is connected with a 24V power supply, a BMS (battery management system) and a. The voltage output by the low-voltage auxiliary power supply of the charging pile is 12V or 24V; the solid-state relay is used for converting the voltage output by the low-voltage auxiliary power supply of the charging pile into 24V based on wide voltage characteristics. According to the invention, the solid-state relay is directly arranged in the low-voltage charging circuit, so that the occupied space of the vehicle is reduced, the convenience is brought to the arrangement of the whole vehicle, and the vehicle cost is reduced.
Description
Technical Field
The invention relates to the field of electric circuits, in particular to a self-adaptive charging circuit system of a low-voltage auxiliary power supply 12V24V charging pile.
Background
According to relevant regulations, the voltage ranges of the A + and A-terminal of the direct current charging pile low-voltage auxiliary power supply are required to be between 0V and 30V, and the direct current charging pile low-voltage auxiliary power supply on the market currently outputs 12V and 24V voltage platforms which respectively correspond to 12V and 24V voltage systems of a finished automobile. The existing mainstream electric commercial Vehicle low-voltage System is a 24V voltage platform, when the output voltage of the charging pile direct current charging auxiliary power supply A + and A-end is 12V, the output voltage can be used for the Vehicle with the 24V voltage platform only by converting 12V into 24V through a DC-DC converter in a charging circuit of the whole Vehicle, the 24V voltage can be used as a charging feedback signal and a power supply of a BMS (Battery Management System) and a VCU (Vehicle Control Unit) to participate in a charging process, and when no DC-DC converter exists, the Vehicle with the 24V voltage platform can not be charged by using the 12V voltage charging pile.
The charging pile for realizing the self-adaptive low-voltage auxiliary power supply voltage of 12V/24V through the DC-DC converter has the following problems: 1. the DC-DC converter has high cost and high failure rate, so that the use cost of a user is high; 2. because the size of the DC-DC converter is large, the arrangement space of the converter is reserved when the whole vehicle is arranged, and the arrangement of the space of the whole vehicle is not facilitated.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a self-adaptive charging circuit system of a low-voltage auxiliary power supply 12V24V charging pile, which reduces the occupied space of a vehicle, brings convenience to the arrangement of the whole vehicle and reduces the cost of the vehicle by directly arranging a solid-state relay in a low-voltage charging circuit.
In order to achieve the above purpose, the invention adopts the technical scheme that the vehicle charging system comprises a solid-state relay arranged in a vehicle high-voltage charging circuit, wherein the input end of the solid-state relay is used for being connected with the output end of a charging pile low-voltage auxiliary power supply so as to convert the voltage output by the charging pile low-voltage auxiliary power supply based on wide voltage characteristics, and the output end of the solid-state relay is connected with a 24V power supply, a BMS and a VCU of a vehicle.
On the basis of the technical proposal, the device comprises a shell,
the voltage output by the low-voltage auxiliary power supply of the charging pile is 12V or 24V;
the solid-state relay is used for converting the voltage output by the low-voltage auxiliary power supply of the charging pile into 24V based on wide voltage characteristics.
On the basis of the technical scheme, the acceptable input voltage range of the input end of the solid-state relay is 9V-32V, and the voltage of the output end of the solid-state relay is 24V.
On the basis of the technical scheme, the output end of the solid-state relay is connected with a BMS of the vehicle and used for providing a charging feedback signal for the BMS.
On the basis of the technical scheme, the output end of the solid-state relay is connected with a VCU of the vehicle and used for providing a charging feedback signal for the VCU.
On the basis of the technical scheme, the 24V power supply is connected with the BMS through a conventional relay and used for supplying power to the BMS.
On the basis of the technical scheme, a conventional relay is arranged between the 24V power supply and the BMS.
On the basis of the technical scheme, the output end of the low-voltage auxiliary power supply of the low-voltage charging pile comprises an A + output end and an A-output end, and the A + output end and the A-output end are connected with the input end of the solid-state relay.
On the basis of the technical scheme, the A-output end of the charging pile low-voltage auxiliary power supply and the input end of the solid-state relay are grounded.
Compared with the prior art, the invention has the advantages that: through set up solid state relay in low pressure charging circuit, solid state relay's input links to each other with filling electric pile low pressure auxiliary power supply output to the voltage that fills electric pile low pressure auxiliary power supply output based on wide voltage characteristic carries out the conversion, replaces DC-DC converter, through the mode with solid state relay direct setting in low pressure charging circuit, reduces vehicle space and occupies, arranges the convenience of bringing for whole car, simultaneously because solid state relay is lower in price, thereby can also reduce vehicle cost.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic diagram of an adaptive charging circuit system using a DC-DC converter in the prior art;
fig. 2 is a schematic structural diagram of a charging pile adaptive charging circuit system of a low-voltage auxiliary power supply 12V24V according to an embodiment of the present invention.
Detailed Description
The embodiment of the invention provides a self-adaptive charging circuit system of a low-voltage auxiliary power supply 12V24V charging pile, a DC-DC converter is replaced by arranging a solid-state relay in a low-voltage charging circuit, and the characteristics of small volume and low price of the solid-state relay are utilized, so that the occupied space of a vehicle is reduced, the convenience is brought to the arrangement of the whole vehicle, and the vehicle cost is reduced.
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all 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 application.
As shown in FIG. 1, the input end of the DC-DC converter is connected with the output end of the low-voltage auxiliary power supply of the charging pile, the output end of the DC-DC converter is connected with both a BMS and a VCU of the vehicle, the DC-DC converter supplies 24V power for the BMS and provides a charging feedback signal, and the DC-DC converter is connected with the VCU and provides a charging feedback signal for the VCU. An input loop of the DC-DC converter is connected with the low-voltage auxiliary power supply A + and A-output ends of the charging pile, and an output loop of the solid-state relay is connected with electrical appliances such as a BMS (battery management system), a vehicle control unit and the like. When the low-voltage auxiliary power supply voltage of the charging pile is 12V/24V output, the DC-DC converter completes the adaptation of the output of the charging pile for 12V/24V to the low-voltage auxiliary power supply voltage, simultaneously controls an output loop, provides a charging feedback signal for the BMS and the vehicle control unit, supplies power for the BMS and participates in a charging process, and therefore the self-adaptive charging pile for 12V/24V with the low-voltage auxiliary power supply voltage is achieved.
Referring to fig. 2, the charging pile adaptive charging circuit system of the low-voltage auxiliary power supply 12V24V according to the embodiment of the invention includes a solid-state relay disposed in a vehicle low-voltage charging circuit, an input terminal of the solid-state relay is used for connecting with an output terminal of the charging pile low-voltage auxiliary power supply to convert a voltage output by the charging pile low-voltage auxiliary power supply based on a wide voltage characteristic, and an output terminal of the solid-state relay is connected with a 24V power supply, a BMS and a VCU of a vehicle. Solid state relay includes input and output, the input links to each other with the output that fills electric pile low pressure auxiliary power supply, the 24V power of output and vehicle, BMS and VCU all link to each other, to the voltage that fills electric pile low pressure auxiliary power supply output, solid state relay is in acceptable within range, based on wide voltage characteristics, the voltage that will fill electric pile low pressure auxiliary power supply output converts 24V into, no matter fill electric pile low pressure auxiliary power supply output voltage and be 12V or 24V promptly, through solid state relay, the homoenergetic realizes that compatible 12V of vehicle or 24V voltage platform fills electric pile, increase the compatibility that the vehicle charges. The solid-state relay is arranged in the low-voltage charging circuit to replace the DC-DC converter, and the characteristics of small size and low price of the solid-state relay are utilized, so that the occupied space of a vehicle is reduced, the convenience is brought to the arrangement of the whole vehicle, and the cost of the vehicle is reduced.
In the embodiment of the invention, the voltage output by the low-voltage auxiliary power supply of the charging pile is 12V or 24V, and the solid-state relay is used for converting the voltage output by the low-voltage auxiliary power supply of the charging pile into 24V based on the wide voltage characteristic. On the market at present, fill electric pile low pressure auxiliary power supply output's voltage and generally be 12V or 24V, through solid state relay, the electric pile homoenergetic of charging of 12V24V voltage platform charges to 24V voltage platform's vehicle, so no matter the input is 12V or 24V, solid state relay homoenergetic is through the whole car 24V power of relay control, for the BMS power supply, self can also be BMS, VCU provides the feedback signal that charges, thereby help BMS, VCU accomplishes the charging procedure. Under the effect of solid-state relay for the vehicle can self-adaptation low pressure auxiliary power supply voltage be 12V24V voltage platform and fill electric pile. When filling electric pile low pressure auxiliary power supply voltage and being 12V24V output, solid-state relay utilizes its wide voltage input characteristic to accomplish the adaptation to filling electric pile low pressure auxiliary power supply output, and output loop controls simultaneously, provides the feedback signal that charges for BMS, VCU, and the 24V power is supplied power for BMS through relay control, participates in the flow of charging to this realizes that self-adaptation low pressure auxiliary power supply voltage fills electric pile for 12V24V voltage platform. Through solid state relay, realize that the vehicle can fill electric pile through compatible 12V and 24V voltage platform, increase the compatibility that the vehicle charges. The DC-DC converter is replaced by providing a solid state relay in the low voltage charging circuit.
In the embodiment of the invention, the output end of the solid-state relay is connected with the BMS of the vehicle and is used for providing a charging feedback signal for the BMS. The output end of the solid-state relay is connected with a VCU of the vehicle and used for providing a charging feedback signal for the VCU. The solid-state relay not only utilizes wide voltage input characteristic to accomplish and fill the adaptation that electric pile self-output was filled for 12V24V to fill electric pile low pressure auxiliary power supply voltage to filling electric pile low pressure auxiliary power supply, still controls output circuit simultaneously, provides the feedback signal that charges for the BMS and the VCU of vehicle. Meanwhile, the 24V power supply is connected with the BMS and used for supplying power to the BMS, a conventional relay is arranged between the 24V power supply and the BMS, and the 24V power supply is controlled through the conventional relay between the 24V power supply and the BMS so as to supply power to the BMS and participate in the charging process.
The output end of the charging pile low-voltage auxiliary power supply comprises an A + output end and an A-output end (equivalent to a positive electrode and a negative electrode), and the A + output end and the A-output end are connected with the input end of the solid-state relay. The A-output end of the charging pile low-voltage auxiliary power supply is grounded with the input end of the solid-state relay. And the output end of the solid-state relay is grounded with the BMS.
And an input loop of the solid-state relay is connected with the output ends of the auxiliary power supply A + and A-of the charging pile, and an output loop of the solid-state relay is connected with electrical appliances such as a 24V power supply of a vehicle, a BMS (battery management system), a vehicle controller and the like. When charging pile low-voltage auxiliary power supply voltage is 12V/24V, the solid-state relay utilizes its wide voltage input characteristic to accomplish the adaptation of charging pile output for 12V/24V to low-voltage auxiliary power supply voltage, controls output loop simultaneously, provides the feedback signal that charges for BMS, vehicle control unit, controls 24V power supply through conventional relay and gives BMS power supply, participates in the charging flow to this realizes that self-adaptation low-voltage auxiliary power supply voltage is 12V/24V's charging pile.
The solid-state relay provides a charging feedback signal, a 24V power supply is controlled by the conventional relay to supply power to the BMS, the acceptable input voltage range of the input end of the solid-state relay is 9V-32V for the solid-state relay, and the voltage of the output end of the solid-state relay is 24V. Namely, for the key technical parameters of the solid-state relay, the input voltage range of the input end is 9V-32V, and the working voltage of the output end is 24V. When the low-voltage auxiliary power supply voltage is 12V/24V charging pile output, the solid-state relay completes the adaptation of the low-voltage auxiliary power supply voltage to 12V/24V charging pile output by utilizing the wide voltage input characteristic, simultaneously controls an output loop, provides a charging feedback signal for the BMS and a vehicle control unit, controls the 24V power supply to supply power to the BMS through a conventional relay, participates in a charging process, and accordingly realizes that the self-adaptive low-voltage auxiliary power supply voltage is 12V/24V charging pile.
For the self-adaptive charging circuit system of the charging pile of the low-voltage auxiliary power supply 12V24V provided by the embodiment of the invention, in the specific charging process, the sequence of the contact coupling of the charging pile plug and the vehicle charging socket in the connection process is as follows: protection grounding, charging connection confirmation, positive and negative of a high-voltage direct-current power supply and a low-voltage auxiliary power supply, negative of a low-voltage auxiliary power supply, charging signal and charging connection confirmation, wherein the sequence is opposite in the disconnecting process. The solid state relay includes input and output, the input links to each other with the output that fills electric pile low pressure auxiliary power supply, 24V power of output and vehicle, BMS and VCU all link to each other, to the voltage that fills electric pile low pressure auxiliary power supply output, the solid state relay is in acceptable within range, based on wide voltage characteristic, the voltage that will fill electric pile low pressure auxiliary power supply output all converts 24V into, thereby reach the purpose that the self-adaptation charges, no matter fill electric pile low pressure auxiliary power supply output voltage and be 12V or 24V promptly, through the solid state relay, the electric pile homoenergetic that fills of 12V24V voltage platform can charge the vehicle of 24V voltage platform, realize that the vehicle can fill electric pile through compatible 12V and 24V voltage platform, increase the compatibility that the vehicle charges. The solid-state relay is arranged in the low-voltage charging circuit to replace the DC-DC converter, and the characteristics of small size and low price of the solid-state relay are utilized, so that the occupied space of a vehicle is reduced, the convenience is brought to the arrangement of the whole vehicle, and the cost of the vehicle is reduced.
According to the self-adaptive charging circuit system of the low-voltage auxiliary power supply 12V24V charging pile, the solid-state relay is arranged in the low-voltage charging circuit, the input end of the solid-state relay is connected with the output end of the low-voltage auxiliary power supply of the charging pile, so that the voltage output by the low-voltage auxiliary power supply of the charging pile is converted based on the wide voltage characteristic, the DC-DC converter is replaced, the occupied space of a vehicle is reduced by directly arranging the solid-state relay in the low-voltage charging circuit, convenience is brought to the arrangement of the whole vehicle, and meanwhile, the price of the solid-state relay is low, so that the cost of. Compared with the original mode of adopting a DC-DC converter, the solid-state relay has higher reliability, no contact, long service life, high speed and small external interference.
In the description of the present application, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience in describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present application. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
It is noted that, in the present application, relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above description is merely exemplary of the present application and is presented to enable those skilled in the art to understand and practice the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (9)
1. The utility model provides a low pressure auxiliary power supply 12V24V fills electric pile self-adaptation charging circuit system which characterized in that: including setting up the solid state relay in vehicle high voltage charging circuit, solid state relay's input is used for linking to each other with filling electric pile low pressure auxiliary power supply output to the voltage that fills electric pile low pressure auxiliary power supply output based on wide voltage characteristic carries out the conversion, solid state relay's output all links to each other with 24V power, BMS and the VCU of vehicle.
2. The adaptive charging circuit system of the charging post for the low-voltage auxiliary power supply 12V24V of claim 1, wherein:
the voltage output by the low-voltage auxiliary power supply of the charging pile is 12V or 24V;
the solid-state relay is used for converting the voltage output by the low-voltage auxiliary power supply of the charging pile into 24V based on wide voltage characteristics.
3. The adaptive charging circuit system of the charging post for the low-voltage auxiliary power supply 12V24V of claim 1, wherein: the acceptable input voltage range of the input end of the solid-state relay is 9V-32V, and the voltage of the output end of the solid-state relay is 24V.
4. The adaptive charging circuit system of the charging post for the low-voltage auxiliary power supply 12V24V of claim 1, wherein: and the output end of the solid-state relay is connected with a BMS of the vehicle and used for providing a charging feedback signal for the BMS.
5. The adaptive charging circuit system of the charging post for the low-voltage auxiliary power supply 12V24V of claim 1, wherein: and the output end of the solid-state relay is connected with a VCU of the vehicle and used for providing a charging feedback signal for the VCU.
6. The adaptive charging circuit system of the charging post for the low-voltage auxiliary power supply 12V24V of claim 1, wherein: the 24V power supply is connected with the BMS through a conventional relay and used for supplying power to the BMS.
7. The self-adaptive charging circuit system of the charging pile for the low-voltage auxiliary power supply 12V24V, as claimed in claim 6, wherein: and a conventional relay is arranged between the 24V power supply and the BMS.
8. The adaptive charging circuit system of the charging post for the low-voltage auxiliary power supply 12V24V of claim 1, wherein: the output end of the low-voltage auxiliary power supply of the low-voltage charging pile comprises an A + output end and an A-output end, and the A + output end and the A-output end are both connected with the input end of the solid-state relay.
9. The adaptive charging circuit system for the charging post of the low-voltage auxiliary power supply 12V24V as claimed in claim 8, wherein: the A-output end of the charging pile low-voltage auxiliary power supply is grounded with the input end of the solid-state relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202011382233.4A CN112373326A (en) | 2020-11-30 | 2020-11-30 | Self-adaptive charging circuit system of low-voltage auxiliary power supply 12V24V charging pile |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011382233.4A CN112373326A (en) | 2020-11-30 | 2020-11-30 | Self-adaptive charging circuit system of low-voltage auxiliary power supply 12V24V charging pile |
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| CN202011382233.4A Pending CN112373326A (en) | 2020-11-30 | 2020-11-30 | Self-adaptive charging circuit system of low-voltage auxiliary power supply 12V24V charging pile |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113895274A (en) * | 2021-10-19 | 2022-01-07 | 国网山东省电力公司临沂供电公司 | Fill electric pile auxiliary power automatic switching control equipment |
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| CN107054258A (en) * | 2015-12-03 | 2017-08-18 | 福特全球技术公司 | Distributed using the vehicle electrical power of the relay with integrated electric pressure converter |
| CN206461392U (en) * | 2017-01-11 | 2017-09-01 | 郑州比克新能源汽车有限公司 | DC charging control device based on 24V system charging electric vehicles |
| CN210780185U (en) * | 2019-10-10 | 2020-06-16 | 广州锐速智能科技股份有限公司 | Device for converting low-voltage auxiliary power supply 12 and 24V of charging pile |
| CN211669562U (en) * | 2020-04-23 | 2020-10-13 | 中电系统建设工程有限公司 | Underground comprehensive pipe gallery environment monitoring controller |
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| CN113895274A (en) * | 2021-10-19 | 2022-01-07 | 国网山东省电力公司临沂供电公司 | Fill electric pile auxiliary power automatic switching control equipment |
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