CN209545193U - A kind of mobile maintenance power supply unit - Google Patents
A kind of mobile maintenance power supply unit Download PDFInfo
- Publication number
- CN209545193U CN209545193U CN201920404155.XU CN201920404155U CN209545193U CN 209545193 U CN209545193 U CN 209545193U CN 201920404155 U CN201920404155 U CN 201920404155U CN 209545193 U CN209545193 U CN 209545193U
- Authority
- CN
- China
- Prior art keywords
- unit
- control unit
- power supply
- monitoring unit
- power control
- 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.)
- Expired - Fee Related
Links
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model provides a kind of mobile maintenance power supply unit, including low-power dissipation power supply unit, monomer voltage acquisition unit, battery voltage monitoring unit, equalizer switch control unit, charging equipment voltage monitoring unit, charging current monitoring unit, PMOS power control unit, buzzer warning unit, DC12V NMOS power control unit, AC220V NMOS power control unit, discharge current monitoring unit, inverter, RS485 communication unit, fan control unit, temperature monitoring unit, touch screen, key and LED light and control unit, the utility model is designed reasonably, it is easy to use, using high rate lithium iron phosphate cell, performance safety is reliable, has temperature safety detection function, there is good application prospect.
Description
Technical field
The utility model relates to repair apparatus fields, and in particular to a kind of mobile maintenance power supply unit.
Background technique
Electric power apparatus examination work, is a groundwork, this work can be worked normally in the various power equipments of guarantee
Under the premise of, also guarantee the personal safety of operator.In substation, service personnel generally requires and passes through in maintenance
Electricity is taken to maintenance power box using more than 50 meters of long power bays；And when suburb is overhauled, it is generally then the storage by using equipment
Battery, mobile power source or generator.Existing mobile power source is lithium ion battery mostly, and lithium ion battery is a kind of chargeable
Battery, has that small in size, energy density is high, have extended cycle life, discharge-rate is high in short-term, the small and free of contamination spy of self-discharge current
Point, but the overcharging of lithium ion battery, over-discharge and excess temperature etc. will cause the influence in safety and service life, must carry out short circuit, overcharge,
The protection such as over-discharge, excess temperature, so needing reasonably to be managed and controlled using efficient power administrative skill.
Utility model content
The purpose of this utility model is to provide a kind of mobile maintenance power supply unit to solve above-mentioned deficiency.
The purpose of this utility model is achieved through the following technical solutions:
A kind of mobile maintenance power supply unit, including low-power dissipation power supply unit, monomer voltage acquisition unit, battery voltage monitoring
Unit, equalizer switch control unit, charging equipment voltage monitoring unit, charging current monitoring unit, PMOS power control unit,
Buzzer warning unit, DC12V NMOS power control unit, AC220V NMOS power control unit, discharge current monitoring are single
Member, inverter, RS485 communication unit, fan control unit, temperature monitoring unit, touch screen, key and LED light and control are single
Member, low-power dissipation power supply unit, battery voltage monitoring unit, equalizer switch control unit, charging equipment voltage monitoring unit, charging
Current monitoring unit, PMOS power control unit, buzzer warning unit, DC12V NMOS power control unit, AC220V
NMOS power control unit, discharge current monitoring unit, inverter, RS485 communication unit, fan control unit, temperature monitoring
Unit, touch screen and key and LED light are separately connected control unit, and monomer voltage acquisition unit passes through battery voltage monitoring unit
Connect control unit.
Low-power dissipation power supply unit includes 3.3V, 5V and 12V voltage.
Charging current monitoring unit connects PMOS power control unit.
RS485 communication unit connects inverter.
Discharge current monitoring unit is separately connected DC12V NMOS power control unit and AC220V NMOS power control list
Member.
The utility model has following beneficial effect:
The utility model is designed reasonably, easy to use, using high rate lithium iron phosphate cell, performance safety is reliable, has
Temperature safety detection function has good application prospect.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the utility model;
Fig. 2 is 3.3V the and 12V power circuit of the utility model；
Fig. 3 is the DC5V circuit of the utility model；
Fig. 4 is the monomer voltage Acquisition Circuit of the utility model；
Fig. 5 is the discharge current testing circuit of the utility model；
Fig. 6 is the charging current detection and management circuit of the utility model；
Fig. 7 is the temperature sensing circuit of the utility model；
Fig. 8 is the key-press input and LED light output circuit of the utility model；
Fig. 9 is the RS485 telecommunication circuit of the utility model；
Figure 10 is the control unit circuit of the utility model.
Specific embodiment
The utility model will be further described below with reference to the accompanying drawings:
As shown in Figure 1, a kind of mobile maintenance power supply unit, including low-power dissipation power supply unit 1, monomer voltage acquisition unit 2,
Battery voltage monitoring unit 3, equalizer switch control unit 4, charging equipment voltage monitoring unit 5, charging current monitoring unit 6,
PMOS power control unit 7, buzzer warning unit 8, DC12V NMOS power control unit 9, AC220V NMOS power control
Unit 10, discharge current monitoring unit 11, inverter 12, RS485 communication unit 13, fan control unit 14, temperature monitoring list
Member 15, touch screen 16, key and LED light 17 and control unit 18, low-power dissipation power supply unit 1, battery voltage monitoring unit 3,
Weigh switch control unit 4, charging equipment voltage monitoring unit 5, charging current monitoring unit 6, PMOS power control unit 7, bee
Ring device alarm unit 8, DC12V NMOS power control unit 9, AC220V NMOS power control unit 10, discharge current monitoring
Unit 11, inverter 12, RS485 communication unit 13, fan control unit 14, temperature monitoring unit 15, touch screen 16 and key
And LED light 17 is separately connected control unit 18, monomer voltage acquisition unit 2 is single by the connection control of battery voltage monitoring unit 3
Member 18.
Low-power dissipation power supply unit includes 3.3V, 5V and 12V voltage.
Charging current monitoring unit 6 connects PMOS power control unit 7.
RS485 communication unit 13 connects inverter 12.
Discharge current monitoring unit 11 is separately connected DC12V NMOS power control unit 9 and AC220V NMOS power control
Unit 10 processed.
It selects the enhanced series monolithic of STM32F013 as control core, realizes that every string lithium ion battery voltage is real-time
Detection, overcharges the functions such as protection, Cross prevention, overheat protector, short-circuit protection, charging current limiter at charging and discharging currents detection.It utilizes
Checking for human-computer dialogue and the setting of system parameter, battery status and failure may be implemented in STM32F013 microcontroller and HMI.
As shown in Fig. 2, power circuit is whole system power supply, system needs aobvious to microcontroller STM32F013, USART
Show that module HMI and integrated transporting discharging provide the voltage of 3.3V, 5V and 12V.
As shown in figure 3, power supply derives from lithium battery itself, so system uses low-power consumption and Width funtion power-supply service.4 strings
The safe handling voltage range of ferric phosphate lithium cell is DC10V ~ 15V, considers that charger voltage and the design of common-mode voltage power supply are defeated
Enter the power supply IC S-1142B that voltage range is DC10V ~ 40V.S-1142B is wide input voltage DC3V ~ 50V, and low-power consumption is adjustable
The linear voltage of the CMOS technology of output adjusts IC, in conjunction with the charge status of battery operating voltage range and system, in order to protect
The stability and S-1142B optimum working efficiency of card system, which designs input voltage range DC10V/1A ~ 40V/1A, defeated
3.3V/50mA out.P+ is the total positive input of lithium battery in Fig. 2, and D1 is that 1A arrangement diode plays power supply reverse connecting protection；D8 and D3
Inhibiting voltage for Transient Suppression Diode is DC40V, and the diode and F1 can realize over-voltage and overcurrent protection and input voltage
Clamper is below S-1142B maximum input voltage.System uses low power dissipation design, in figure 12V power supply be 5V power circuit and
NMOS driving circuit provides power supply, and output carries out control output by microcontroller.
As shown in figure 4, monomer voltage detection circuit is mainly by 8 road two-channel digital selection controls, difference operational amplifying circuit
The detection of monomer voltage is completed with adc circuit inside STM32F013.The design of monomer voltage detection circuit is using shared one
The acquisition mode sequential in turn of a ADC.CD4052BC is two-channel digital selection control, and power consumption only 0.1 μ W is responsible for selection
The channel for detecting single lithium battery, provides channel selecting for difference amplifier below.The selection in channel is selected by SIGA and SIGB, is led to
The open and close in road are controlled by NHV, and SIGA, SIGB and NHV are all from microcontroller management.Two-channel digital selection control by
Microcontroller control selections monomer battery voltage channel, monomer voltage are sent to calculus of differences proportional amplifier TS321 and are transported
It calculates.
As shown in figure 5, discharge current Acquisition Circuit uses Differential Input ratio amplifier by 2 0.005 current dividers in parallel
Both end voltage obtains DIsamp voltage signal after carrying out differential amplification, and the signal is complete by the ADC progress analog-to-digital conversion of microcontroller
At the Detection task of discharge current.
As shown in fig. 6, the ADC due to microcontroller does not support negtive voltage detection, so the detection of charging and discharging currents needs
Separately design, LM2904 integrate double operational, and internal IC2 detects for charging current
As shown in fig. 7, temp probe uses NTC thermistor, 3 temperature for detecting battery pack temperature, electric discharge respectively
Power tube and AC220V inverter power tube temperature degree.The design of its circuit is adopted using bleeder circuit by the ADC of microcontroller
The voltage for collecting NTC temp probe obtains the value of temperature.
As shown in figure 8, mobile power source is provided with 3 function buttons and 3 indicator lights on operation panel.The function of key
Be respectively as follows: switching on and shutting down key, AC220V inverter switching device key and DC12V, DC5V switch key, 3 LED lights respectively with
3 keys are corresponding, for indicating the switch state of respective keys function.
As shown in figure 9, the 50Hz pure sine wave that the AC220V output of mobile power source is communicated using 300W with RS485 is inverse
Become device.The exchange output key KEY1 of operation panel is pressed, and generates ACPOW interrupt signal, and microcontroller enters the service of interruption i.e.
Make corresponding operating, first microcontroller control ACON signal exports high level driving 12V enable signal ACEN and draws to inverter is enabled
Then foot sends and receives instruction and the letter such as fault of converter alarm and data according to communication protocol by RS485 telecommunication circuit
Breath.
As shown in Figure 10, electricity is controlled by core design system of 32 high performance STM32F013RBT6 microcontrollers
Road.There are many pin and function of STM32F013RBT6 single-chip microcontroller, it is sufficient to meet the requirement of design.The microcontroller list is used
The peripheral hardwares such as GPIO, EXT1, RTC, BKP, USART, ADC, SPI of piece machine, it is necessary to which reasonable pin point is carried out according to peripheral circuit
Match.
Claims (5)
1. a kind of mobile maintenance power supply unit, including low-power dissipation power supply unit, monomer voltage acquisition unit, battery voltage monitoring list
Member, equalizer switch control unit, charging equipment voltage monitoring unit, charging current monitoring unit, PMOS power control unit, bee
Ring device alarm unit, DC12V NMOS power control unit, AC220V NMOS power control unit, discharge current monitoring unit,
Inverter, RS485 communication unit, fan control unit, temperature monitoring unit, touch screen, key and LED light and control unit,
It is characterized by: low-power dissipation power supply unit, battery voltage monitoring unit, equalizer switch control unit, charging equipment voltage monitoring
Unit, charging current monitoring unit, PMOS power control unit, buzzer warning unit, DC12V NMOS power control unit,
AC220V NMOS power control unit, discharge current monitoring unit, inverter, RS485 communication unit, fan control unit, temperature
Degree monitoring unit, touch screen and key and LED light are separately connected control unit, and monomer voltage acquisition unit is supervised by cell voltage
It surveys unit and connects control unit.
2. a kind of mobile maintenance power supply unit according to claim 1, it is characterised in that: the low-power dissipation power supply unit
Including 3.3V, 5V and 12V voltage.
3. a kind of mobile maintenance power supply unit according to claim 1, it is characterised in that: the charging current monitors single
Member connection PMOS power control unit.
4. a kind of mobile maintenance power supply unit according to claim 1, it is characterised in that: the RS485 communication unit
Connect inverter.
5. a kind of mobile maintenance power supply unit according to claim 1, it is characterised in that: the discharge current monitors single
Member is separately connected DC12V NMOS power control unit and AC220V NMOS power control unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920404155.XU CN209545193U (en) | 2019-03-28 | 2019-03-28 | A kind of mobile maintenance power supply unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920404155.XU CN209545193U (en) | 2019-03-28 | 2019-03-28 | A kind of mobile maintenance power supply unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209545193U true CN209545193U (en) | 2019-10-25 |
Family
ID=68275701
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920404155.XU Expired - Fee Related CN209545193U (en) | 2019-03-28 | 2019-03-28 | A kind of mobile maintenance power supply unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209545193U (en) |
-
2019
- 2019-03-28 CN CN201920404155.XU patent/CN209545193U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205248831U (en) | Electric automobile exchanges intelligent charging stake | |
| CN204559175U (en) | A kind of electric automobile charging pile intelligent monitoring and controlling device | |
| CN201117610Y (en) | Intelligent circuit breaker | |
| CN203466383U (en) | Intelligent static safe energy-saving multifunctional socket with zero power consumption | |
| CN203562823U (en) | Base station power supply management system | |
| CN210577909U (en) | Base station backup power supply management system and integrated equipment with same | |
| CN107834519A (en) | Li-ion cell protection controls asic chip system | |
| CN102570582A (en) | Multi-purpose intelligent power module | |
| CN105553030A (en) | Uninterruptable power supply management system of lithium battery | |
| CN107979071A (en) | Remote monitoring of power transmission line system | |
| CN207926209U (en) | Lithium battery pack charge-discharge protection circuit | |
| CN108599343A (en) | A kind of Multifunctional portable power source | |
| CN208001152U (en) | Battery protection device and load device | |
| CN206498211U (en) | A kind of battery control circuit | |
| CN209545193U (en) | A kind of mobile maintenance power supply unit | |
| CN204989368U (en) | Leakage current monitor | |
| CN207557400U (en) | A kind of low voltage failure circuit investigates instrument | |
| CN110967579A (en) | Test source of no-load metering loop automatic detection equipment | |
| CN203536994U (en) | Vehicle-mounted uninterruptible power supply storage battery control and management device | |
| CN209375232U (en) | A kind of small micro- station AC/DC integrated power supply | |
| CN210629116U (en) | Energy storage control system based on retired power battery pack | |
| CN202872419U (en) | LED emergency lamp battery management device | |
| CN201041945Y (en) | Electromotive tool with power indication and charge protection function | |
| CN208423881U (en) | A kind of Multifunctional portable power source | |
| CN207231537U (en) | A kind of comprehensive monitoring alarm device for equipment operating environment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191025 Termination date: 20200328 |