CN212695746U - 48V, 60V compatible simultaneous use trade electric cabinet charging circuit and trade electric cabinet - Google Patents

48V, 60V compatible simultaneous use trade electric cabinet charging circuit and trade electric cabinet Download PDF

Info

Publication number
CN212695746U
CN212695746U CN202021810678.3U CN202021810678U CN212695746U CN 212695746 U CN212695746 U CN 212695746U CN 202021810678 U CN202021810678 U CN 202021810678U CN 212695746 U CN212695746 U CN 212695746U
Authority
CN
China
Prior art keywords
circuit
charging
control
power supply
voltage
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202021810678.3U
Other languages
Chinese (zh)
Inventor
胡雄毅
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hangzhou Yugu Technology Co ltd
Original Assignee
Hangzhou Yugu Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hangzhou Yugu Technology Co ltd filed Critical Hangzhou Yugu Technology Co ltd
Priority to CN202021810678.3U priority Critical patent/CN212695746U/en
Application granted granted Critical
Publication of CN212695746U publication Critical patent/CN212695746U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • 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
    • 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
    • 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
    • Y02T90/16—Information or communication technologies improving the operation of electric vehicles

Landscapes

  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

The utility model relates to a trade electric cabinet technical field, specifically speaking relates to a compatible 48V, 60V electricity changing cabinet charging circuit and the electricity changing cabinet that uses simultaneously. The charging circuit of the battery replacement cabinet comprises a charging circuit, a driving circuit, a control circuit, a communication circuit and a power supply circuit; the control circuit can read the voltage grade of the battery through the communication circuit and can generate a corresponding PWM waveform according to the voltage grade of the battery; the drive circuit is used for outputting a corresponding control signal according to the PWM waveform generated by the control circuit so as to drive the charging circuit; the charging circuit is used for outputting corresponding output voltage according to the control signal of the driving circuit so as to charge the battery with corresponding voltage grade; the power supply circuit is used for supplying power to the charging circuit, the driving circuit, the control circuit and the communication circuit. The battery replacement cabinet is provided with the battery replacement cabinet charging circuit. The utility model discloses convenient to use.

Description

48V, 60V compatible simultaneous use trade electric cabinet charging circuit and trade electric cabinet
Technical Field
The invention relates to the technical field of a power change cabinet, in particular to a power change cabinet charging circuit compatible with 48V and 60V and used at the same time and a power change cabinet.
Background
The voltage grades of the existing electric vehicle batteries are mainly 48V and 60V. In the existing power conversion cabinet, a charging port of 48V and a charging port of 60V cannot be commonly used. Thereby being inconvenient to use.
Disclosure of Invention
The present invention provides a 48V, 60V compatible simultaneous switch cabinet charging circuit that overcomes some or all of the deficiencies of the prior art.
The charging circuit of the power conversion cabinet compatible with 48V and 60V simultaneous use comprises a charging circuit, a driving circuit, a control circuit, a communication circuit and a power supply circuit; the control circuit can read the voltage grade of the battery through the communication circuit and can generate a corresponding PWM waveform according to the voltage grade of the battery; the drive circuit is used for outputting a corresponding control signal according to the PWM waveform generated by the control circuit so as to drive the charging circuit; the charging circuit is used for outputting corresponding output voltage according to the control signal of the driving circuit so as to charge the battery with corresponding voltage grade; the power supply circuit is used for supplying power to the charging circuit, the driving circuit, the control circuit and the communication circuit.
According to the invention, the control circuit can read the related information of the battery to be charged through the communication circuit, so that the voltage grade of the battery to be charged can be better known. And then, the control circuit can call different charging strategy codes according to different voltage grades, so that different PWM waveform signals can be generated, and output of different charging voltages at the charging circuit can be better realized through the driving circuit. Through the charging circuit of the battery replacing cabinet, the battery replacing cabinet can be compatible with batteries (such as 48V, 60V and the like) with various voltage grades. Therefore, the laying cost of the power exchange cabinet can be reduced better, and the power exchange cabinet is convenient to use better.
Preferably, the control circuit comprises a control chip, and the control chip adopts a single chip microcomputer with the model number of STM32F103CBT 6. Therefore, the method is convenient to realize and can better realize the generation of the PWM waveform.
Preferably, the communication circuit performs data interaction with the control chip through a UART interface, and the communication circuit includes a digital isolation chip, and the model of the digital isolation chip is ADuM 121N. Therefore, data interaction between the battery and the control circuit can be preferably realized.
Preferably, the driving circuit comprises a PWM control circuit and a sampling amplifying circuit, and the charging circuit comprises a half-bridge inverter circuit and a rectifying circuit; the PWM control circuit is used for receiving a PWM waveform signal generated by the control circuit to control the output of the half-bridge inverter circuit, the rectifying circuit is used for rectifying the output of the half-bridge inverter circuit and outputting battery charging voltage, and the sampling amplification circuit is used for sampling and amplifying the battery charging voltage and then using the battery charging voltage as the feedback input of the PWM control circuit. Thereby enabling output of different charging voltages to be preferably achieved.
Preferably, the PWM control circuit includes a PWM control chip, and the model of the PWM control chip is SG 3525. Thereby enabling to preferably realize the output of the PWM waveform signal.
Preferably, the power supply circuit comprises a power supply circuit, a driving power supply circuit and a control power supply circuit, wherein the power supply circuit is used for converting the voltage of a power grid into direct-current voltage, the driving power supply circuit is used for connecting an output end of the power supply circuit and outputting +5V and +12V voltages, and the control power supply circuit is used for connecting a +5V output of the driving power supply circuit and outputting +3.3V voltage. Thereby preferably generating a plurality of different operating voltages.
Based on any one of the charging circuits compatible with 48V and 60V for use simultaneously, the invention also provides a power changing cabinet which can automatically judge the voltage grade of a battery placed in the power changing cabinet and output corresponding charging voltage, so that the power changing cabinet is convenient to use.
Drawings
Fig. 1 is a circuit diagram of a block diagram of a charging circuit of a charging cabinet in embodiment 1;
FIG. 2 is a circuit diagram of a control circuit in embodiment 1;
fig. 3 is a circuit diagram of a communication circuit in embodiment 1;
fig. 4 is a circuit diagram of a PWM control circuit in embodiment 1;
fig. 5 is a circuit diagram of a half-bridge inverter circuit in embodiment 1;
fig. 6 is a circuit diagram of an isolation transformer T1 in embodiment 1;
FIG. 7 is a circuit diagram of a rectifier circuit in embodiment 1;
fig. 8 is a circuit diagram of a transformer T3 in embodiment 1;
fig. 9 is a circuit diagram of a sampling amplification circuit in embodiment 1;
fig. 10 is a circuit diagram of a power supply circuit in embodiment 1;
fig. 11 is a circuit diagram of a drive power supply circuit in embodiment 1;
fig. 12 is a circuit diagram of a control power supply circuit in embodiment 1.
Detailed Description
For a further understanding of the invention, reference should be made to the following detailed description taken in conjunction with the accompanying drawings and examples. It is to be understood that the examples are illustrative of the invention and not limiting.
Example 1
As shown in fig. 1, the present embodiment provides a charging circuit of a power conversion cabinet compatible with 48V and 60V simultaneous use, which includes a charging circuit, a driving circuit, a control circuit, a communication circuit and a power supply circuit; the control circuit can read the voltage grade of the battery through the communication circuit and can generate a corresponding PWM waveform according to the voltage grade of the battery; the drive circuit is used for outputting a corresponding control signal according to the PWM waveform generated by the control circuit so as to drive the charging circuit; the charging circuit is used for outputting corresponding output voltage according to the control signal of the driving circuit so as to charge the battery with corresponding voltage grade; the power supply circuit is used for supplying power to the charging circuit, the driving circuit, the control circuit and the communication circuit.
In this embodiment, the control circuit can read the information related to the battery to be charged through the communication circuit, and further can better know the voltage level of the battery to be charged. And then, the control circuit can call different charging strategy codes according to different voltage grades, so that different PWM waveform signals can be generated, and output of different charging voltages at the charging circuit can be better realized through the driving circuit.
It is understood that the PWM waveform signal in this embodiment can be output through a code, which is a known technology in the prior art and therefore will not be described in detail. In this embodiment, control codes corresponding to PWM waveforms of 60V and 48V may be written in a memory of the control circuit and called as needed.
Through the charging circuit of the battery replacing cabinet in the embodiment, the battery replacing cabinet can be compatible with batteries with various voltage grades (such as 48V, 60V and the like). Therefore, the laying cost of the power exchange cabinet can be reduced better, and the power exchange cabinet is convenient to use better.
It will be appreciated that identification of the voltage level of the battery is preferably achieved by providing a unique identification code at each battery.
Referring to fig. 2, the control circuit includes a control chip U1, and the control chip U1 is a single chip microcomputer of the model STM32F103CBT 6. Therefore, the method is convenient to realize and can better realize the generation of the PWM waveform.
In this embodiment, the pin PA0 of the control chip U1 can be used as an output pin of the PWM waveform.
Referring to fig. 3, the communication circuit performs data interaction with the control chip U1 through a UART interface, and the communication circuit includes a digital isolation chip U3, and the digital isolation chip U3 is of the type ADuM 121N. Therefore, data interaction between the battery and the control circuit can be preferably realized.
In the embodiment, the communication circuit forms the battery communication interface J1, so that the pluggable connection between the battery and the communication circuit can be preferably realized.
In this embodiment, the driving circuit includes a PWM control circuit and a sampling amplifying circuit, and the charging circuit includes a half-bridge inverter circuit and a rectifying circuit; the PWM control circuit is used for receiving a PWM waveform signal generated by the control circuit to control the output of the half-bridge inverter circuit, the rectifying circuit is used for rectifying the output of the half-bridge inverter circuit and outputting battery charging voltage, and the sampling amplification circuit is used for sampling and amplifying the battery charging voltage and then using the battery charging voltage as the feedback input of the PWM control circuit. Thereby enabling output of different charging voltages to be preferably achieved.
Referring to fig. 4, the PWM control circuit includes a PWM control chip U2, and the model of the PWM control chip U2 is SG 3525. Thereby enabling to preferably realize the output of the PWM waveform signal.
In this embodiment, the pin 10(/ Shutdn) of the PWM control chip U2 is used to access the pin PA0 of the control chip U1, so as to implement input of a PWM waveform signal. The terminal "a" in fig. 4 is used to access the output of the sampling amplifying circuit.
Referring to fig. 5, the half-bridge inverter circuit includes 2 field-effect transistors of type IRFP450, and output control of different voltages can be preferably realized by controlling on/off of the 2 field-effect transistors through the PWM control circuit.
Referring to fig. 6, the PWM control circuit is connected to the half-bridge inverter circuit through an isolation transformer T1.
As shown in fig. 7, the rectifying circuit is used to output the battery charging voltage and output it via the terminals Vout + and Vout-.
As shown in fig. 8, the half-bridge inverter circuit and the rectifier circuit are connected by a transformer T3.
As shown in fig. 9, the sampling amplifier circuit is used to perform an operational amplification process on the output of the rectifier circuit and then to serve as a feedback input of the PWM control circuit. The A end in the sampling amplification circuit is connected with the A end in the PWM control circuit.
In this embodiment, the power supply circuit includes a power supply circuit, a driving power supply circuit and a control power supply circuit, the power supply circuit is used for converting the power grid voltage into a direct current voltage, the driving power supply circuit is used for accessing the output end of the power supply circuit and outputting +5V and +12V voltages, and the control power supply circuit is used for accessing the +5V output of the driving power supply circuit and outputting +3.3V voltage. Thereby preferably generating a plurality of different operating voltages.
As shown in fig. 10, the power supply circuit is configured to output a corresponding dc voltage through the output terminal "HV" after rectifying the power grid voltage. Wherein, the 'HV' end in the half-bridge inverter circuit is connected with the output end 'HV' of the power supply circuit.
As shown in fig. 11, the driving power supply circuit includes a first branch for outputting a +12V voltage and a second branch for outputting a +5V voltage. The first branch comprises a regulator chip with model numbers L7812 and L7912CV, and the second branch comprises a regulator chip with model number L7805. Wherein, the output of first branch road and second branch road is integrated to a binding post J3 department, so can insert the electric wire netting more conveniently and supply power.
As shown in fig. 12, the control power supply circuit includes a voltage regulation chip with a model number HT7533, which can preferably convert a +5V voltage into a +3.3V voltage.
Example 2
The embodiment provides a power conversion cabinet, which comprises the power conversion cabinet charging circuit compatible with 48V and 60V simultaneous use in embodiment 1. Therefore, the voltage grade of the battery can be judged better and automatically, and the corresponding charging voltage is output, so that the battery charging device is convenient to use.
The present invention and its embodiments have been described above schematically, without limitation, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching, without departing from the spirit of the invention, the person skilled in the art shall not inventively design the similar structural modes and embodiments to the technical solution, but shall fall within the scope of the invention.

Claims (7)

1. The utility model provides a compatible 48V, 60V trades electrical cabinet charging circuit who uses simultaneously which characterized in that: the charging circuit comprises a charging circuit, a driving circuit, a control circuit, a communication circuit and a power supply circuit; the control circuit can read the voltage grade of the battery through the communication circuit and can generate a corresponding PWM waveform according to the voltage grade of the battery; the drive circuit is used for outputting a corresponding control signal according to the PWM waveform generated by the control circuit so as to drive the charging circuit; the charging circuit is used for outputting corresponding output voltage according to the control signal of the driving circuit so as to charge the battery with corresponding voltage grade; the power supply circuit is used for supplying power to the charging circuit, the driving circuit, the control circuit and the communication circuit.
2. The charging circuit of claim 1, wherein the charging circuit is compatible with 48V and 60V simultaneous use, and comprises: the control circuit comprises a control chip (U1), and the control chip (U1) adopts a single chip microcomputer with the model number of STM32F103CBT 6.
3. The charging circuit of claim 2, wherein the charging circuit is compatible with 48V and 60V simultaneous use, and comprises: the communication circuit carries out data interaction with a control chip (U1) through a UART interface, and the communication circuit comprises a digital isolation chip (U3), wherein the model of the digital isolation chip (U3) is ADuM 121N.
4. The charging circuit of claim 3, wherein the charging circuit is compatible with 48V and 60V simultaneous use, and comprises: the drive circuit comprises a PWM control circuit and a sampling amplification circuit, and the charging circuit comprises a half-bridge inverter circuit and a rectifying circuit; the PWM control circuit is used for receiving a PWM waveform signal generated by the control circuit to control the output of the half-bridge inverter circuit, the rectifying circuit is used for rectifying the output of the half-bridge inverter circuit and outputting battery charging voltage, and the sampling amplification circuit is used for sampling and amplifying the battery charging voltage and then using the battery charging voltage as the feedback input of the PWM control circuit.
5. The charging circuit of claim 4, wherein the charging circuit is compatible with 48V and 60V simultaneous use, and comprises: the PWM control circuit comprises a PWM control chip (U2), and the model of the PWM control chip (U2) is SG 3525.
6. The charging circuit of claim 5, wherein the charging circuit is compatible with 48V and 60V simultaneous use, and comprises: the power supply circuit comprises a power supply circuit, a driving power supply circuit and a control power supply circuit, wherein the power supply circuit is used for converting the voltage of a power grid into direct-current voltage, the driving power supply circuit is used for being connected to the output end of the power supply circuit and outputting +5V and +12V voltages, and the control power supply circuit is used for being connected to the +5V output of the driving power supply circuit and outputting +3.3V voltage.
7. A switchgear comprising a 48V, 60V simultaneous use switchgear charging circuit as claimed in any of claims 1-6.
CN202021810678.3U 2020-08-26 2020-08-26 48V, 60V compatible simultaneous use trade electric cabinet charging circuit and trade electric cabinet Active CN212695746U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202021810678.3U CN212695746U (en) 2020-08-26 2020-08-26 48V, 60V compatible simultaneous use trade electric cabinet charging circuit and trade electric cabinet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202021810678.3U CN212695746U (en) 2020-08-26 2020-08-26 48V, 60V compatible simultaneous use trade electric cabinet charging circuit and trade electric cabinet

Publications (1)

Publication Number Publication Date
CN212695746U true CN212695746U (en) 2021-03-12

Family

ID=74902922

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202021810678.3U Active CN212695746U (en) 2020-08-26 2020-08-26 48V, 60V compatible simultaneous use trade electric cabinet charging circuit and trade electric cabinet

Country Status (1)

Country Link
CN (1) CN212695746U (en)

Similar Documents

Publication Publication Date Title
CN100356655C (en) Circuit for controlling battery charging, battery charging device and control method
CN102714426B (en) Electricity feeding device and electricity feeding system using the same
CN103532187B (en) Charger, charging wire, charging system and charging method
CN104701583A (en) Battery charging method based on USB interface, adapter, electric equipment and system
CN102307410A (en) Light source module, lighting apparatus, and illumination device using the same
CN106208369A (en) A kind of on-line monitoring device of intelligent type low-voltage circuit breaker
CN107623440A (en) Voltage conversion circuit and power supply switch circuit
CN212695746U (en) 48V, 60V compatible simultaneous use trade electric cabinet charging circuit and trade electric cabinet
JP2001178010A (en) Charging control system for battery of electric storage cells, particularly for battery of lithium cells
CN105553241A (en) Power management device, electronic device and control method
KR100288746B1 (en) Power supply circuit
CN102545590A (en) charge pump device and voltage stabilizing method thereof
CN102035250B (en) Semiconductor device, voltage comparison circuit, power management circuit and electronic instrument
CN207790376U (en) charging pile control circuit and charging pile
EP4145670A1 (en) Battery pack output control circuit
CN206274671U (en) A kind of microphone
CN113595210B (en) Individual soldier intelligent power management device
Bubovich et al. Initial Evaluation of a Multilevel Inverter with Unfolding Stage for BESS Applications
CN204597781U (en) A kind of switching power circuit
CN219740008U (en) Charging device for charging electric medical instrument
CN219611415U (en) Power supply switching circuit
CN105092950A (en) Voltage detecting device
CN212784801U (en) Power management device with multiple batteries connected in series for power supply and POS machine
CN215498725U (en) Power supply and trade electric cabinet
CN208767831U (en) Wide scope invariable power charging equipment

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant
CP03 Change of name, title or address

Address after: Room 603, 6th floor, building 1, No.1, Qixian Road, Liangzhu street, Yuhang District, Hangzhou City, Zhejiang Province

Patentee after: Hangzhou Yugu Technology Co.,Ltd.

Address before: Room 603, 6th floor, No.1 Qixian Road, Liangzhu street, Yuhang District, Hangzhou City, Zhejiang Province

Patentee before: HANGZHOU YUGU TECHNOLOGY Co.,Ltd.

CP03 Change of name, title or address