CN209200734U - Programmable switch formula electric car charger - Google Patents
Programmable switch formula electric car charger Download PDFInfo
- Publication number
- CN209200734U CN209200734U CN201821680796.XU CN201821680796U CN209200734U CN 209200734 U CN209200734 U CN 209200734U CN 201821680796 U CN201821680796 U CN 201821680796U CN 209200734 U CN209200734 U CN 209200734U
- Authority
- CN
- China
- Prior art keywords
- circuit
- charging
- voltage
- chip microcontroller
- electric car
- 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
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Classifications
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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
-
- 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
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
-
- 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
Abstract
The utility model discloses programmable switch formula electric car chargers, including power circuit, single-chip microcontroller, low current charge circuit, high-current charging circuit, bridge rectifier, and touch-switch, external memory chip and four voltage class indicator lights, the power circuit is connect to provide operating voltage with single-chip microcontroller, single-chip microcontroller respectively with low current charge circuit, the control terminal of high-current charging circuit is connected to control its charging work or disconnection, low current charge circuit, the output end of high-current charging circuit exports electric current to the charging port of battery after rectifying by the bridge rectifier, the touch-switch is used to switch four voltage class indicator light flashings to select the charging voltage of specific grade, the charging voltage that the charging voltage of the selected specific grade is stored in external memory chip and defaults when can be used for being switched on next time.
Description
Technical field
The utility model relates to electric car chargers, especially programmable switch formula electric car charger.
Background technique
The battery of traditional electric car has 36V, 48V, 64V, and 72V etc. different voltage specifications is corresponding just to have different rule
The electric car charger of lattice, and the circuit board of electric car charger can only specially plate it is dedicated, such as 36V 36V special purpose relay
And respective element, 48V 48V special purpose relay and respective element, if to realize different voltage parameters, it is necessary to increase
Or element is reduced or changes, it greatly affected production efficiency and unnecessary waste, reduce loss.And it needs quickly real
Existing charging voltage is adjusted, and avoids artificial wiring bring cumbersome.
Utility model content
In order to solve the above technical problems, the purpose of the utility model is to provide one kind to be suitable for 36V, 48V, 64V, 72V etc.
The programmable switch formula electric car charger of different voltages size battery cell.
The technical solution adopted in the utility model is:
Programmable switch formula electric car charger, including power circuit, single-chip microcontroller, low current charge circuit, high current are filled
Circuit, bridge rectifier and touch-switch, external memory chip and four voltage class indicator lights, the power supply electricity
Road is connect to provide operating voltage, the single-chip microcontroller control with low current charge circuit, high-current charging circuit respectively with single-chip microcontroller
End connection to control its charging work or disconnection, low current charge circuit, high-current charging circuit output end pass through the bridge
Electric current is exported after formula rectifier circuit rectifies to the charging port of battery, the low current charge circuit, high-current charging circuit are all
Using mechanical relay and triode as switching device, the touch-switch, external memory chip and four voltage class refer to
Show that lamp is all connect with single-chip microcontroller, which is used to switch four voltage class indicator light flashings to select filling for specific grade
Piezoelectric voltage, the default charging voltage of the selected specific grade is stored in external memory chip and can be used for being switched on next time when
Charging voltage.
The programmable switch formula electric car charger further includes overcharge protection circuit, which is serially connected in bridge
Between formula rectification circuit and the charging port of battery, overcharge protection circuit is using mechanical relay and triode as switching device
And its control terminal is connect with the single-chip microcontroller
The programmable switch formula electric car charger further includes battery voltage detection circuit, the battery voltage detection circuit
It is connect with the single-chip microcontroller to ensure that single-chip microcontroller works normally again after charging port access battery.
The programmable switch formula electric car charger further includes the temperature protection control circuit connecting with single-chip microcontroller, the temperature
Degree protection control circuit stops working for detecting the control single chip computer when temperature is spent higher than+80.
The programmable switch formula electric car charger further includes the LED indicating circuit connecting with single-chip microcontroller, the LED indication
Circuit is used to indicate the working condition of charger.
The utility model has the beneficial effects that the utility model charger can be touched open using same charger by S1
It puts row into and is programmed to different charger voltages, greatly facilitate the use of user, the energy can be greatly reduced in this way
Waste, plays the role of good energy-saving and emission-reduction.For example family has the electric bicycle of three different voltages, it is only necessary to which one can
Programming electric car charger can be realized.
Detailed description of the invention
Specific embodiment of the present utility model is described further with reference to the accompanying drawing.
Fig. 1 is the live part circuit diagram of the utility model charger；
Fig. 2 is control and the detection part circuit diagram of the utility model charger；
Fig. 3 is the power circuit diagram of the utility model charger.
Specific embodiment
It as shown in Figure 1-Figure 3, is the programmable switch formula electric car charger of the utility model, including power circuit (see
Fig. 3), single-chip microcontroller U1, low current charge circuit 10, high-current charging circuit 20, bridge rectifier 30 and touch-switch
S1, external memory chip U4 and four voltage class indicator lights (LED2, LED3, LED4, LED5).
Above-mentioned power circuit is connect to provide operating voltage with single-chip microcontroller U1, single-chip microcontroller U1 respectively with low current charge circuit
10, the control terminal of high-current charging circuit 20 is connected to control its charging work or disconnection, low current charge circuit 10, high current
The output end of charging circuit 20 by the bridge rectifier 30 rectify after export electric current to battery charging port (VO+,
VO-)；
Above-mentioned low current charge circuit 10, high-current charging circuit 20 all using mechanical relay and triode (K1, Q1,
K2, Q2) be used as switching device, the touch-switch S1, external memory chip U4 and four voltage class indicator lights all with monolithic
Machine U1 connection, touch-switch S1 are used to switch four voltage class indicator lights and flash to select the charging voltage of specific grade,
The charging voltage of the selected specific grade is stored in external memory chip U2 and that defaults when can be used for being switched on next time fills
Piezoelectric voltage.
The specific working principle is as follows: long-pressing S1 five seconds, LED2, LED3, LED4, LED5 flashed simultaneously, then by primary, LED2
Individually flashing, locks, LED2 becomes being always on, and represents the voltage of charger at this time as 36V automatically after not operating 5 seconds.It is said according to this
Method and so on, it can choose 48V, the voltage of 64V, 72V.(note: the voltage voltage after chosen is opened next time after power-off
Machine is still selected voltage)
As the further perfect of the technical program, programmable switch formula electric car charger further includes overcharge protection circuit
40, which is serially connected between bridge rectifier 30 and the charging port of battery, and overcharge protection circuit 40 is adopted
It uses mechanical relay K3 with triode Q4 as switching device and its control terminal is connect with the single-chip microcontroller U1, due to K2, K1 electricity
If when road cannot turn off on time when or out of control, voltage can be more than after upper limit voltage 15.5V five seconds, and single-chip microcontroller can close by force K3
It is disconnected, so that playing battery is not filled bad effect.
As the further improvement of the technical program, programmable switch formula electric car charger further includes battery voltage detection
Circuit 50, V-BATTERY battery voltage detection circuit: being made of D10, R38, D14, R39, C35, the battery voltage detection circuit
50 connect to ensure that single-chip microcontroller U1 is worked normally again after charging port access battery with the single-chip microcontroller U1.In addition, being additionally provided with
Vdd voltage detection circuit: it is made of R7, D13, R6, C4.
As the further improvement of the technical program, programmable switch formula electric car charger further includes connecting with single-chip microcontroller U1
The temperature protection control circuit connect, is made of R7/R4, R5, C5, and when temperature, which is higher than+80, to be spent, single-chip microcontroller stops working, at this time
Green LED, red LED flash alarm simultaneously.
As the further improvement of the technical program, programmable switch formula electric car charger further includes connecting with single-chip microcontroller U1
The LED indicating circuit connect, by green LED, red LED composition, which is used to indicate the working condition of charger.
This charger is that one kind to switch working principle reaches charging purpose, that is to say, that single group battery is in low-voltage
Circuit is connected when 13.5V, is disconnected in high voltage 15.5V, is judged whether battery fills by the charging time of several sections of open and close
It is full.
Battery of electric vehicle is currently used 36V, 48V, 64V, and tetra- kinds of voltages of 72V, 36V is by the battery strings of three 12V
Join, 48V is by four, and 60V is by five, and for 72V by 6 battery compositions, the lower voltage limit of single group battery is set as small by we
It is connected when 13.5V, disconnection when upper limit voltage is set greater than 15.5V, if constantly open voltage will continue to rise damage battery.
The charging principle and process of the technical program are as follows: if first connect 220V power supply, charger be it is idle, at this time
Red LED flashing alarm, VO+, VO- do not have voltage output, K1, K2, and K3 is in an off state, and are primarily due to security consideration, because
It is charger voltage considerably beyond human body 36V safe voltage.VO must first connect battery, then connect 220V power supply, and charger is
It can work normally, at this time U1,10 feet obtain a positive high-voltage level, and U1 starts to work, and 5 feet export high level, and Q4, K3 are led
Lead to, 6,7 feet, 3 seconds output high level of delay, Q1, K1, Q2, K2 conducting, electric current passes through C14, R16, R17, C11, R13, R12 charge and discharge
Electricity is changed into DC voltage after the bridge rectifier of D3, D4, D5, D6 composition and charges the battery, i.e. starting large current charge.Its
In, work as VO+, VO- output access battery pack positive and negative anodes, voltage will lower, and (battery pack is equivalent to the work of voltage-stablizer or load
With), as charging progresses, battery voltage is gradually increasing, and capacitance-resistance voltage reduction circuit only serves the effect of current limliting.
It is large current charge first by taking single group battery as an example, when single group cell voltage reaches 15.5V, the delay of 6,7 feet is defeated
Low level out, Q1, K1, Q2, K2 are disconnected, and complete to charge for the first time, although single group cell voltage reaches 15.5V at this time, due to
It is large current charge, there is the effect of " inertia ", leads to actual voltage virtual height and underfill, virtual voltage only reaches after tested
To the 60% of voltage rating, therefore, Q1, K1, voltage can decline after Q2, K2 are disconnected；
When voltage drops to 13.5V, 7 feet export again, and Q1, K1 conducting, this electric current only pass through C11, and R13, R12 carry out small
Electric current charging, i.e. floating charging, also referred to as trickle charge；Capacity is bigger, and the required charging time is longer, otherwise shorter, so anti-
Low current switch charging is carried out again, and when being less than or equal to 180 seconds in the charging time from 13.5V to 15.5V, green LED is red
LED is lighted simultaneously, indicate at this time battery have been filled with 70% electricity, when charging between be less than or equal to 60 seconds when, indicate at this time
Battery has been filled with 90% electricity, when charging between be less than or equal to 20 seconds when, indicate at this time battery have been filled with 100% electricity
Amount, green LED are gone out, and K3, K1 are disconnected, charging complete.
The utility model charger can be programmed to realize difference by S1 touch-switch using same charger
Charger voltage, greatly facilitate the use of user, the waste of the energy can be greatly reduced in this way, play good energy conservation
Emission reduction effect.For example family has the electric bicycle of three different voltages, it is only necessary to a programmable electric car charger
It realizes.
The foregoing is merely the preferred embodiments of the utility model, the utility model is not limited to above-mentioned embodiment party
Formula, if with essentially identical means realize the utility model aim technical solution belong to the protection scope of the utility model it
It is interior.
Claims (5)
1. programmable switch formula electric car charger, it is characterised in that: including power circuit, single-chip microcontroller, low current charge circuit,
High-current charging circuit, bridge rectifier and touch-switch, external memory chip and four voltage class indicator lights, institute
It states power circuit to be connect with single-chip microcontroller to provide operating voltage, single-chip microcontroller is electric with low current charge circuit, large current charge respectively
To control its charging work or disconnection, low current charge circuit, the output end of high-current charging circuit are logical for the control terminal connection on road
The charging port for exporting electric current to battery after the bridge rectifier rectification is crossed, the low current charge circuit, high current are filled
Circuit all uses mechanical relay and triode as switching device, the touch-switch, external memory chip and four electricity
Pressure grade indicator light is all connect with single-chip microcontroller, and the touch-switch is for switching four voltage class indicator light flashings with selected specific
The charging voltage of grade, the charging voltage of the selected specific grade are stored in external memory chip and can be used for opening next time
The charging voltage defaulted when machine.
2. programmable switch formula electric car charger according to claim 1, it is characterised in that: further include overcharging protection electricity
Road, the overcharge protection circuit are serially connected between bridge rectifier and the charging port of battery, and overcharge protection circuit is using mechanical
Relay is with triode as switching device and its control terminal is connect with the single-chip microcontroller.
3. programmable switch formula electric car charger according to claim 1 or 2, it is characterised in that: further include battery electricity
Detection circuit is pressed, which connect to ensure that single-chip microcontroller is again after charging port accesses battery with the single-chip microcontroller
It works normally.
4. programmable switch formula electric car charger according to claim 1 or 2, it is characterised in that: further include and monolithic
The temperature protection control circuit of machine connection, the temperature protection control circuit control monolithic when temperature is spent higher than+80 for detecting
Machine stops working.
5. programmable switch formula electric car charger according to claim 1 or 2, it is characterised in that: further include and monolithic
The LED indicating circuit of machine connection, the LED indicating circuit are used to indicate the working condition of charger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821680796.XU CN209200734U (en) | 2018-10-16 | 2018-10-16 | Programmable switch formula electric car charger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821680796.XU CN209200734U (en) | 2018-10-16 | 2018-10-16 | Programmable switch formula electric car charger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209200734U true CN209200734U (en) | 2019-08-02 |
Family
ID=67408232
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821680796.XU Expired - Fee Related CN209200734U (en) | 2018-10-16 | 2018-10-16 | Programmable switch formula electric car charger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209200734U (en) |
-
2018
- 2018-10-16 CN CN201821680796.XU patent/CN209200734U/en not_active Expired - Fee Related
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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: 20190802 Termination date: 20191016 |