CN209606536U - A kind of DC charging motor logging - Google Patents
A kind of DC charging motor logging Download PDFInfo
- Publication number
- CN209606536U CN209606536U CN201920159856.1U CN201920159856U CN209606536U CN 209606536 U CN209606536 U CN 209606536U CN 201920159856 U CN201920159856 U CN 201920159856U CN 209606536 U CN209606536 U CN 209606536U
- Authority
- CN
- China
- Prior art keywords
- capacitor
- voltage
- chip
- pin
- resistance
- 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
Links
Landscapes
- Measurement Of Current Or Voltage (AREA)
Abstract
The utility model discloses a kind of DC charging motor loggings.It is related to charging pile machine onthe technology of site test field, data acquire good reliability.Communication module circuitry, DA output amplifier, LCD screen circuit, RS232-RS485 circuit, V/F circuit and F/V circuit is isolated in ADC sampling gain adjustment circuit, the CAN being connected including micro-control unit and respectively with micro-control unit, it is characterized in that, it further include ground terminal AGND, electrolytic capacitor CR6 and reference source circuit, the output end of reference source circuit is connected on the VREF+ pin of micro-control unit；The negative pole end of electrolytic capacitor CR6 is connected with ground terminal AGND, and the positive terminal of electrolytic capacitor CR6 is connected on the output end of reference source circuit.
Description
Technical field
The utility model relates to charging pile machine onthe technology of site test fields, and in particular to a kind of DC charging motor logging.
Background technique
The development of new-energy automobile was very fast in recent years, and was all wherein that needs fill close to ninety percent new-energy automobile
The electric car of electricity, therefore electrically-charging equipment becomes the important infrastructure of new-energy automobile development, at the same time, electrically-charging equipment
It also becomes and restricts the maximum short slab that new-energy automobile quickly propels.For the operation electric property for grasping every charging pile, mark
The acquisition that charging pile runs the key parameters of health degree becomes O&M unit focus of attention.Direct-current charging post logging is exactly needle
To a portable equipment for capableing of field diagnostic charger riding quality of this demand research and development, it has acquisition data, collects and records
Message comprehensive analysis infers the abnormal function with failure of charging pile.But the existing typically no setting reference source of charger logging
Circuit causes the data reliability of acquisition poor.
Utility model content
The utility model is to solve the typically no setting reference source circuit of existing charger logging and lead to acquisition
The deficiency of data reliability difference provides a kind of a kind of DC charging motor logging of data acquisition good reliability.
To achieve the goals above, the utility model uses following technical scheme:
A kind of DC charging motor logging, the ADC sampling being connected including micro-control unit and respectively with micro-control unit
Communication module circuitry, DA output amplifier, LCD screen circuit, RS232-RS485 circuit, V/F is isolated in gain adjustment circuit, CAN
Circuit and F/V circuit further include ground terminal AGND, electrolytic capacitor CR6 and reference source circuit, the output end connection of reference source circuit
On the VREF+ pin of micro-control unit；The negative pole end of electrolytic capacitor CR6 is connected with ground terminal AGND, electrolytic capacitor CR6's
Positive terminal is connected on the output end of reference source circuit.
This programme connects what a negative pole end was connect with ground terminal using reference source circuit and in reference source circuit output end
Electrolytic capacitor CR6, the output end of electrolytic capacitor CR6 are connected with the positive terminal of electrolytic capacitor, so that data acquisition is reliable
Property is good.
Preferably, the reference source circuit includes electrolytic capacitor CR1, capacitor CR2, capacitor CR3, capacitor CR4, capacitor
It CR5, resistance RF1, resistance RF2, resistance RF3, resistance RF4, direct current VA+5V output end, high precisely reference voltage chip UD3 and puts
Large chip UD4；The high precisely reference voltage chip UD3 is AD780 chip；Amplification chip UD4 is OP07 chip；
The negative pole end of electrolytic capacitor CR1, one end of capacitor CR2, one end of capacitor CR3, one end of capacitor CR4, capacitor CR5
One end, one end of resistance RF1 and the com pin of high precisely reference voltage chip UD3 be all connected respectively with ground terminal AGND；
The Vi pin of the positive terminal of electrolytic capacitor CR1, the other end of capacitor CR2 and high precisely reference voltage chip UD3 is all
It is connected respectively with direct current VA+5V output end；
The other end of capacitor CR3 is connected with the temp pin of high precisely reference voltage chip UD3；
The other end of resistance RF1 is connected with the O/P pin of high precisely reference voltage chip UD3；
The Vo pin of high precisely reference voltage chip UD3 is connected with the positive input of amplification chip UD4；
One end of resistance RF3 is connected with the reverse input end of amplification chip UD4；
The other end of resistance RF3 and the output end of amplification chip UD4 are respectively coupled the VREF+ pin in micro-control unit
On；
The ground terminal of amplification chip UD4 and one end of resistance FR4 are respectively coupled on the other end of capacitor CR5；
The other end of resistance FR4 is connected on 12V power cathode；
One end for meeting positive pole port and resistance RF2 of amplification chip UD4 is respectively coupled the other end in capacitor CR4
On；
The other end of resistance FR2 is connected on 12V positive pole.
Preferably, the reference source circuit further includes electrolytic capacitor C6, capacitor C7, electrolytic capacitor C8, capacitor C9, electrolysis
Capacitor C11, capacitor C12, positive voltage voltage-stablizer D2 and voltage-stabiliser tube D3；Positive voltage voltage-stablizer D2 is L7805 chip, and voltage-stabiliser tube D3 is
SPX1117-3.3V chip；
The negative pole end of electrolytic capacitor C6, one end of capacitor C7, the negative pole end of electrolytic capacitor C8, one end of capacitor C9, capacitor
The negative pole end of C11, one end of capacitor C12, the GND pin of positive voltage voltage-stablizer D2 and voltage-stabiliser tube D3 GND pin all respectively with
Ground terminal AGND is connected；
The positive terminal of electrolytic capacitor C6 and the other end of capacitor C7 are all connected with the Vin pin of positive voltage voltage-stablizer D2 respectively
It connects；
The VIN pin of the positive terminal of electrolytic capacitor C8, the other end of capacitor C8 and voltage-stabiliser tube D3 is all steady with positive voltage respectively
The Vin pin of depressor D2 is connected；
The positive terminal of electrolytic capacitor C11, the other end of capacitor C12 are all connected with the VOUT pin of voltage-stabiliser tube D3 respectively.
The utility model can reach following effect:
The utility model connects a negative pole end and ground terminal company using reference source circuit and in reference source circuit output end
The electrolytic capacitor CR6 connect, the output end of electrolytic capacitor CR6 are connected with the positive terminal of electrolytic capacitor, so that data acquire
Good reliability, good reliability.
Detailed description of the invention
Fig. 1 is a kind of circuit theory connection structure schematic block diagram of the utility model.
Fig. 2 is a kind of circuit diagram of the utility model ADC sampling gain adjustment circuit.
Fig. 3 is a kind of circuit diagram of the utility model CAN isolation communication module circuitry.
Fig. 4 is a kind of circuit diagram of the utility model DA output amplifier.
Fig. 5 is a kind of circuit diagram of the utility model LCD screen circuit.
Fig. 6 is a kind of circuit diagram of the utility model micro-control unit.
Fig. 7 is a kind of circuit diagram of the utility model RS232-RS485 circuit.
Fig. 8 is a kind of circuit diagram of the utility model V/F circuit.
Fig. 9 is a kind of circuit diagram of this practical new F/V circuit.
Figure 10 is a kind of circuit diagram of the utility model type reference source circuit.
Specific embodiment
Below with reference to the embodiments and with reference to the accompanying drawing the technical solutions of the present invention will be further described.
Embodiment: a kind of DC charging motor logging, referring to shown in Fig. 1-Figure 10, including micro-control unit 1 and respectively with
ADC that micro-control unit is connected sampling gain adjustment circuit 2, CAN isolation communication module circuitry 3, DA output amplifier 4,
LCD screen circuit 5, RS232-RS485 circuit 6, V/F circuit 7 and F/V circuit 8, further include ground terminal AGND, electrolytic capacitor CR6 and
Reference source circuit 9, the output end of reference source circuit are connected on the VREF+ pin of micro-control unit；The cathode of electrolytic capacitor CR6
End is connected with ground terminal AGND, and the positive terminal of electrolytic capacitor CR6 is connected on the output end of reference source circuit.
The reference source circuit includes electrolytic capacitor CR1, capacitor CR2, capacitor CR3, capacitor CR4, capacitor CR5, resistance
RF1, resistance RF2, resistance RF3, resistance RF4, direct current VA+SV output end, high precisely reference voltage chip UD3 and amplification chip
UD4；The high precisely reference voltage chip UD3 is AD780 chip；Amplification chip UD4 is OP07 chip；
The negative pole end of electrolytic capacitor CR1, one end of capacitor CR2, one end of capacitor CR3, one end of capacitor CR4, capacitor CR5
One end, one end of resistance RF1 and the com pin of high precisely reference voltage chip UD3 be all connected respectively with ground terminal AGND；
The Vi pin of the positive terminal of electrolytic capacitor CR1, the other end of capacitor CR2 and high precisely reference voltage chip UD3 is all
It is connected respectively with direct current VA+5V output end；
The other end of capacitor CR3 is connected with the temp pin of high precisely reference voltage chip UD3；
The other end of resistance RF1 is connected with the O/P pin of high precisely reference voltage chip UD3；
The Vo pin of high precisely reference voltage chip UD3 is connected with the positive input of amplification chip UD4；
One end of resistance RF3 is connected with the reverse input end of amplification chip UD4；
The other end of resistance RF3 and the output end of amplification chip UD4 are respectively coupled the VREF+ pin in micro-control unit
On；
The ground terminal of amplification chip UD4 and one end of resistance FR4 are respectively coupled on the other end of capacitor CR5；
The other end of resistance FR4 is connected on 12V power cathode；
One end for meeting positive pole port and resistance RF2 of amplification chip UD4 is respectively coupled the other end in capacitor CR4
On；
The other end of resistance FR2 is connected on 12V positive pole.
The reference source circuit further include electrolytic capacitor C6, capacitor C7, electrolytic capacitor C8, capacitor C9, electrolytic capacitor C11,
Capacitor C12, positive voltage voltage-stablizer D2 and voltage-stabiliser tube D3；Positive voltage voltage-stablizer D2 is L7805 chip, and voltage-stabiliser tube D3 is SPX1117-
3.3V chip；
The negative pole end of electrolytic capacitor C6, one end of capacitor C7, the negative pole end of electrolytic capacitor C8, one end of capacitor C9, capacitor
The negative pole end of C11, one end of capacitor C12, the GND pin of positive voltage voltage-stablizer D2 and voltage-stabiliser tube D3 GND pin all respectively with
Ground terminal AGND is connected；
The positive terminal of electrolytic capacitor C6 and the other end of capacitor C7 are all connected with the Vin pin of positive voltage voltage-stablizer D2 respectively
It connects；
The VIN pin of the positive terminal of electrolytic capacitor C8, the other end of capacitor C8 and voltage-stabiliser tube D3 is all steady with positive voltage respectively
The Vin pin of depressor D2 is connected；
The positive terminal of electrolytic capacitor C11, the other end of capacitor C12 are all connected with the VOUT pin of voltage-stabiliser tube D3 respectively.
ADC samples gain adjustment circuit, by program adjust automatically gain size, realizes low-voltage low current or high voltage
When high current, sampled data is attained by higher precision.
Communication module circuitry is isolated in CAN, has been internally integrated isolated power supply module, light-coupled isolation device and CAN driving
Device, small in size, high reliablity.
DA output amplifier, the DA programming output of the inside STMS2F407 pass through OP07 and amplify output voltage to 0-10V control
High-pressure modular output voltage processed.
LCD screen circuit, 320x240 TFT SPI interface display screen, for showing sampled data, real-time curve etc..
Communication is isolated in micro-control unit and the ADC being connected respectively with micro-control unit sampling gain adjustment circuit, CAN,
Using 32 ARM CortexTM- M4 core controller, 168M dominant frequency, 2 road CAN, multichannel USART, SPI interface, A/D, D/A etc..
RS232-RS485 circuit, for being communicated with ammeter, payload communication, the communication of PC daemon software.
Sampled voltage is converted into frequency signal by LM331 by V/F circuit, sends MCU sampling meter to by isolation optocoupler
It calculates, is mainly used for low-voltage signal detection.
Frequency signal is changed into voltage signal output by LM331, is used for low pressure by F/V circuit, MCU output frequency signal
Signal output.
Reference source circuit is the reference voltage of MCU A/D, the calculating of D/A circuit sampling.
DC charging motor logging carries out on-site test in the form of portable cabinet and portable load combinations, it is contemplated that ring
Border, the constraint to on-site test such as cost, we prepare the data accumulated during atual detection using logging V1.0, excellent
Change analysis ratiocination logic, instrument miniaturization is plate, is mounted in charging pile, the exception and failure that user's charging process is found
Situation is sent to charging pile control mainboard, by the communication of charging pile and backstage platform, uploading detection exception and fault message, from
And timely and effectively instruction is provided for charging pile O&M unit, O&M efficiency is improved, O&M cost is reduced.
The present embodiment is connect using reference source circuit and in reference source circuit output end one negative pole end of connection with ground terminal
Electrolytic capacitor CR6, the output end of electrolytic capacitor CR6 is connected with the positive terminal of electrolytic capacitor, so that data acquisition can
Good, the good reliability by property.
The embodiments of the present invention have been described above with reference to the accompanying drawings, and however, the implementation is not limited to the above embodiments, this
Field those of ordinary skill can be with various changes and modifications may be made within the scope of the appended claims.
Claims (3)
1. a kind of DC charging motor logging, the ADC sampling being connected including micro-control unit and respectively with micro-control unit increases
Beneficial adjustment circuit, CAN isolation communication module circuitry, DA output amplifier, LCD screen circuit, RS232-RS485 circuit, V/F electricity
Road and F/V circuit, which is characterized in that it further include ground terminal AGND, electrolytic capacitor CR6 and reference source circuit, reference source circuit
Output end is connected on the VREF+ pin of micro-control unit；The negative pole end of electrolytic capacitor CR6 is connected with ground terminal AGND, electricity
The positive terminal of solution capacitor CR6 is connected on the output end of reference source circuit.
2. a kind of DC charging motor logging according to claim 1, which is characterized in that the reference source circuit includes electricity
Solve capacitor CR1, capacitor CR2, capacitor CR3, capacitor CR4, capacitor CR5, resistance RF1, resistance RF2, resistance RF3, resistance RF4, straight
Flow VA+5V output end, high precisely reference voltage chip UD3 and amplification chip UD4；Precisely reference voltage chip UD3 is the height
AD780 chip；Amplification chip UD4 is OP07 chip；
The negative pole end of electrolytic capacitor CR1, one end of capacitor CR2, one end of capacitor CR3, one end of capacitor CR4, capacitor CR5 one
The com pin at end, one end of resistance RF1 and high precisely reference voltage chip UD3 is all connected with ground terminal AGND respectively；
The Vi pin of the positive terminal of electrolytic capacitor CR1, the other end of capacitor CR2 and high precisely reference voltage chip UD3 is all distinguished
It is connected with direct current VA+5V output end；
The other end of capacitor CR3 is connected with the temp pin of high precisely reference voltage chip UD3；
The other end of resistance RF1 is connected with the 0/P pin of high precisely reference voltage chip UD3；
The Vo pin of high precisely reference voltage chip UD3 is connected with the positive input of amplification chip UD4；
One end of resistance RF3 is connected with the reverse input end of amplification chip UD4；
The other end of resistance RF3 and the output end of amplification chip UD4 are respectively coupled on the VREF+ pin of micro-control unit；
The ground terminal of amplification chip UD4 and one end of resistance FR4 are respectively coupled on the other end of capacitor CR5；
The other end of resistance FR4 is connected on 12V power cathode；
Connect positive pole port and one end of resistance RF2 of amplification chip UD4 is respectively coupled on the other end of capacitor CR4；
The other end of resistance FR2 is connected on 12V positive pole.
3. a kind of DC charging motor logging according to claim 2, which is characterized in that the reference source circuit further includes
Electrolytic capacitor C6, capacitor C7, electrolytic capacitor C8, capacitor C9, electrolytic capacitor C11, capacitor C12, positive voltage voltage-stablizer D2 and pressure stabilizing
Pipe D3；Positive voltage voltage-stablizer D2 is L7805 chip, and voltage-stabiliser tube D3 is SPX1117-3.3V chip；
The negative pole end of electrolytic capacitor C6, one end of capacitor C7, the negative pole end of electrolytic capacitor C8, one end of capacitor C9, capacitor C11
Negative pole end, one end of capacitor C12, the GND pin of positive voltage voltage-stablizer D2 and voltage-stabiliser tube D3 GND pin all respectively with ground terminal
AGND is connected；
The positive terminal of electrolytic capacitor C6 and the other end of capacitor C7 are all connected with the Vin pin of positive voltage voltage-stablizer D2 respectively；
The VIN pin of the positive terminal of electrolytic capacitor C8, the other end of capacitor C8 and voltage-stabiliser tube D3 all respectively with positive voltage voltage-stablizer
The Vin pin of D2 is connected；
The positive terminal of electrolytic capacitor C11, the other end of capacitor C12 are all connected with the VOUT pin of voltage-stabiliser tube D3 respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920159856.1U CN209606536U (en) | 2019-01-29 | 2019-01-29 | A kind of DC charging motor logging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920159856.1U CN209606536U (en) | 2019-01-29 | 2019-01-29 | A kind of DC charging motor logging |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209606536U true CN209606536U (en) | 2019-11-08 |
Family
ID=68402778
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920159856.1U Active CN209606536U (en) | 2019-01-29 | 2019-01-29 | A kind of DC charging motor logging |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209606536U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112485668A (en) * | 2020-11-09 | 2021-03-12 | 国网智慧能源交通技术创新中心(苏州)有限公司 | Monitoring system for direct current charger |
-
2019
- 2019-01-29 CN CN201920159856.1U patent/CN209606536U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112485668A (en) * | 2020-11-09 | 2021-03-12 | 国网智慧能源交通技术创新中心(苏州)有限公司 | Monitoring system for direct current charger |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101264844B1 (en) | Energy-saving control device, power connector and switchgear having the same | |
| CN110341539B (en) | Multifunctional charging pile | |
| CN107359654A (en) | A kind of measuring instrument radio communication device power control system | |
| CN203394644U (en) | Diesel generator set controlling device | |
| CN209606536U (en) | A kind of DC charging motor logging | |
| CN207650309U (en) | A kind of electric energy quality detection device | |
| CN205489791U (en) | Take power failure incident to report electric energy meter of functional module | |
| CN202111796U (en) | Constant current drive circuit and television set | |
| CN203233312U (en) | Switch power supply controller and switch power supply device | |
| CN210246392U (en) | Power supply control circuit, auxiliary power supply circuit, power supply system and electronic equipment | |
| CN204089598U (en) | A kind of high-voltage power apparatus of capillary electrophoresis chip | |
| CN208285221U (en) | A kind of power supply built-up circuit of electrical equipment mainboard | |
| CN207339698U (en) | Equip stabilized voltage supply device | |
| CN211628045U (en) | A kind of power control circuit of trace element analyzer and trace element analysis device | |
| CN205509851U (en) | Vehicle -mounted power amplifier's high -efficient management system of power | |
| CN209496466U (en) | A kind of low power loss communication base station anti-theft apparatus and system | |
| CN210894484U (en) | Low-voltage fault detection device | |
| CN219695292U (en) | But hot plug's modularization smart electric meter | |
| CN221351723U (en) | Connection detection circuit without common ground | |
| CN216286213U (en) | Vibrating wire signal acquisition equipment | |
| CN205666762U (en) | A power supply unit for metering device | |
| CN205786217U (en) | The drive circuit of a kind of personal sampler and personal sampler | |
| CN221173485U (en) | Multi-parameter acquisition sensor for conducting wire state of power transmission line | |
| CN218567464U (en) | Solar self-charging pipe network cathode protection on-line monitoring and wireless remote transmission device | |
| CN219611415U (en) | Power supply switching circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |