CN209488260U - A kind of Vehicular direct-current UPS control system - Google Patents
A kind of Vehicular direct-current UPS control system Download PDFInfo
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- CN209488260U CN209488260U CN201920539799.XU CN201920539799U CN209488260U CN 209488260 U CN209488260 U CN 209488260U CN 201920539799 U CN201920539799 U CN 201920539799U CN 209488260 U CN209488260 U CN 209488260U
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- external battery
- control system
- vehicular direct
- ups control
- charging circuit
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Abstract
The utility model discloses a kind of Vehicular direct-current UPS control system, belongs to vehicle power supply field.Vehicular direct-current UPS control system includes charging circuit, uninterrupted switch unit, parameter acquisition unit and electricity display unit, wherein charging circuit is used to power to external battery charging and external device；The uninterrupted switch unit between vehicle power and external battery electric power for switching；The parameter acquisition unit for acquiring the voltage parameter of external battery in real time；Electricity of the electricity display unit for external battery is shown.In a kind of Vehicular direct-current UPS control system provided by the utility model, charging circuit uses BUCK topological structure, improves charge efficiency to the maximum extent；Uninterrupted switch unit, core devices are switched over using relay；Battery capacity display unit can real-time display external battery state of charge, it is convenient that the state of DC UPS is observed；Parameter acquisition unit can acquire the operation information of power supply in real time.
Description
Technical field
The utility model relates to vehicle power supply technical field, in particular to a kind of vehicle power supply control system.
Background technique
Vehicular direct-current uninterruptible power supply (Uninterruptible Power System/Uninterruptible Power
Supply, UPS) it is widely used in the places such as field office, remote districts, general people are more demanding to power supply, must
It must guarantee that power supply is uninterrupted, in order to avoid because power breakdown leads to loss of data.Currently on the market, ac uninterrupted power supply is more
Common, the product of various specifications is all more complete, and DC UPS is then more rare.Vehicular direct-current uninterruptible power supply
Working principle: it when automobile starting, is on the one hand charged to external battery by vehicle-mounted 12V electric system, is on the other hand given
Vehicle electronic device is directly powered；After automobile flameout, vehicle-mounted 12V electric system is disconnected, and DC UPS starts at this time,
Vehicle electronics product is powered by external battery.
There is following major defects for vehicle-mounted uninterruptible power supply control system currently on the market:
(1) volume is larger, inconvenient for use, seriously occupies interior space；
(2) Vehicular direct-current uninterruptible power supply type is less, mostly based on exchange output.
(3) circuit is complex, high expensive；
(4) electric power switching time is longer, easily leads to electronic device data loss；
From this, uninterruptible power supply is not able to satisfy vehicle-mounted, field on Vehicles Collected from Market due to the particularity of use environment
The requirement of electronic product under equal environment.
Utility model content
The purpose of this utility model is to provide a kind of Vehicular direct-current UPS control systems, to solve existing Vehicular direct-current
Uninterruptible power supply type is less, mostly based on exchange output；Electric power switching time is longer, easily leads to electronic device data loss；
And circuit is complicated, the problem of higher cost.
In order to solve the above technical problems, the utility model provides a kind of Vehicular direct-current UPS control system, including charging electricity
Road, uninterrupted switch unit, parameter acquisition unit and electricity display unit, wherein the charging circuit is used for external battery
Charging and external device power supply；The uninterrupted switch unit between vehicle power and external battery electric power for switching；The ginseng
Counting collection unit for acquiring the voltage parameter of external battery in real time；Electricity of the electricity display unit for external battery is aobvious
Show.
Optionally, the charging circuit is the reduction voltage circuit of charge controlling chip composition, for charging for external battery.
Optionally, the uninterrupted switch unit includes relay and driving circuit.
Optionally, the parameter acquisition unit includes the comparator circuit and sampling resistor of LMV339 composition, for acquiring
External battery information about power.
Optionally, the electricity display unit includes LED and current-limiting resistance, is used to indicate the information about power of external battery.
Optionally, the charging circuit uses BUCK topological structure, and the ground of charging circuit and external battery is non-isolated.
In a kind of Vehicular direct-current UPS control system provided by the utility model, the charging circuit is using BUCK topology
Structure improves charge efficiency to the maximum extent；Uninterrupted switch unit, core devices are switched over using relay, by vehicle-mounted
12V voltage is controlled, and realizes the uninterrupted power supply of electrical equipment；Battery capacity display unit can real-time display external battery
State of charge, it is convenient that the state of DC UPS is observed, the remaining working time is assessed convenient for user, is saved in time
Data；Parameter acquisition unit can acquire the operation information of power supply in real time.
Detailed description of the invention
Fig. 1 is a kind of functional block diagram of Vehicular direct-current UPS control system provided by the utility model；
Fig. 2 is charging circuit provided by the utility model and uninterrupted switch unit schematic diagram；
Fig. 3 is parameter acquisition unit and electricity display unit schematic diagram provided by the utility model；
Fig. 4 is comparator circuit schematic diagram provided by the utility model；
Fig. 5 is charging circuit control chip functions block diagram provided by the utility model.
Specific embodiment
Below in conjunction with the drawings and specific embodiments to the utility model proposes a kind of Vehicular direct-current UPS control system make into
One step is described in detail.According to following explanation and claims, will be become apparent from feature the advantages of the utility model.It should be noted
It is that attached drawing is all made of very simplified form and using non-accurate ratio, only to facilitate, lucidly aid in illustrating this reality
With the purpose of new embodiment.
The utility model provides a kind of Vehicular direct-current UPS control system, is as shown in Figure 1 Vehicular direct-current UPS control
The functional block diagram of system processed, including charging circuit 1, uninterrupted switch unit 2, parameter acquisition unit 3 and electricity display unit 4,
Wherein, the charging circuit 1 is used to power to the charging of external battery 5 and external device；The uninterrupted switch unit 2 is used for vehicle
It carries and switches between electric power and 5 electric power of external battery；The parameter acquisition unit 3 for acquiring the voltage parameter of external battery 5 in real time.
Electricity of the electricity display unit 4 for external battery 5 is shown.The working principle of each unit are as follows:
Charging circuit 1: the charging circuit 1 is the reduction voltage circuit of charge controlling chip composition, for filling for external battery 5
Electricity, preferably, the concrete model of the charge controlling chip is NCP3063；Referring to figure 2., the charging circuit 1 uses
BUCK topological structure, charging circuit 1 and the ground of external battery 5 are non-isolated.Vehicle-mounted 12V voltage is inputted by the anode of diode D2,
The cathode of diode D2 is connect with 6 feet of capacitor C3, resistance R1, charge controlling chip U1, the other end ground connection of capacitor C3；Resistance
1,7 feet of another termination charge controlling chip U1 of R1；8 feet of charge controlling chip U1 are hanging, 2 feet and inductance L1 and diode
The cathode of D3 connects, and the other end of the plus earth of diode D3, inductance L1 is connect with capacitor C1, resistance R19, resistance R2, electricity
Hold the other end ground connection of C1, the other end of resistance R2 is connect with 3 feet of relay Relay1, the other end of resistance R19 and charging
Control 5 feet and the resistance R5 connection of chip U1, the other end ground connection of resistance R5,3 feet and capacitor C2 of charge controlling chip U1
Connection, the other end of capacitor C2 and the 4 foot connect and grounds of charge controlling chip U1.
Its working principle is that: after automobile starting, by powering to charge controlling chip U1, capacitor C3 is vehicle-mounted 12V voltage
Input filter storage capacitor；Resistance R1 is output current limiting resistance；Inductance L1 is BUCK circuit inductance；Diode D3 is two pole of clamper
Pipe；Capacitor C2 is soft start capacitor；Resistance R3, resistance R5 form feedback control loop, guarantee the stabilization of output voltage；Resistance R2 is outer
Set battery charging current limiter resistance.
Uninterrupted switch unit 2: the uninterrupted switch unit 2 includes relay and driving circuit.Please continue to refer to figure
2, vehicle-mounted 12V voltage is connect with 4,5 feet of relay Relay1；3 feet of relay Relay1 meet CH+；1 foot connects external battery
Anode；2 feet are connect with the cathode of fuse F1, capacitor C4 and diode D1；The other end of capacitor C4 is grounded；Fuse F1's is another
One terminating load；The anode of diode D1 connects the end V1.
Its working principle is that: in the presence of vehicle-mounted 12V voltage, relay is attracted, and 1,2 feet of relay disconnect, and 1,3 feet close
It closes, charging circuit works at this time, one side diode D1, fuse F1 powering load, on the other hand by resistance R2 to electricity
Pond charging；After automobile flameout, vehicle-mounted 12V voltage is 0, and relay does not work at this time, and 1,3 feet of relay disconnect, and 1,2 feet close
It closes, external battery is by fuse F1 powering load, to realize the uninterrupted power supply of electrical equipment.
Parameter acquisition unit 3: the parameter acquisition unit 3 includes comparator and sampling resistor, for acquiring external battery 5
Information about power, preferably, the concrete model of the comparator is LMV139.Referring to figure 3. and Fig. 4, resistance R6, resistance R7,
The anode of resistance R8, resistance R9 and battery connects；The other end of resistance R6 is connect with 4 feet of resistance R15, comparator U2, resistance
The other end of R15 is grounded；The other end of resistance R7 is connect with 6 feet of resistance R16, comparator U2, another termination of resistance R16
Ground；The other end of resistance R8 is connect with 8 feet of resistance R17, comparator U2；The other end and resistance R18, comparator U2 of resistance R9
10 feet connection, resistance R18 the other end ground connection；
Its working principle is that: 5 voltage of external battery of the end V1 acquisition is compared with reference voltage, if more than reference voltage, than
2 feet compared with device U2 export low level, and LED1 is bright；The cell voltage of the end V2 acquisition is compared with reference voltage, if more than reference voltage,
2 feet of comparator U2 export low level, and LED2 is bright；The cell voltage of the end V3 acquisition is compared with reference voltage, if more than with reference to electricity
14 feet of pressure, comparator U2 export low level, and LED3 is bright；The cell voltage of the end V4 acquisition is compared with reference voltage, if more than ginseng
Voltage is examined, 13 feet of comparator U2 export low level, and LED4 is bright；To show the state of charge of external battery 5.
Battery capacity display unit 4: the electricity display unit 4 includes LED and current-limiting resistance, is used to indicate external battery
5 information about power.Please continue to refer to Fig. 3 and Fig. 4, resistance R10, resistance R11, resistance R12, resistance R13, resistance R14 and battery
Anode connection；The other end of resistance R11 and the anode of LED1 connect, and the cathode of LED1 is connect with 2 feet of comparator U2；Resistance
The other end of R12 and the anode of LED2 connect, and the cathode of LED2 is connect with 1 foot of comparator U2；The other end of resistance R13 with
The anode of LED3 connects, and the cathode of LED3 is connect with 14 feet of comparator U2；The other end of resistance R14 and the anode of LED4 connect
It connects, the cathode of LED4 is connect with 13 feet of comparator U2；The other end of resistance R10 and 1,2 feet, the comparator of zener diode Q1
5,7,9,11 feet of U2 connect, the 3 feet ground connection of zener diode Q1；One end of resistance R4 and the+12V connection of vehicle power supply, electricity
The anode of the other end and LED5 that hinder R4 connects, the minus earth of LED5.
Its working principle is that: after automobile starting, vehicle-mounted 12V power supply, LED5 is lit by R4 current limliting, display+12V power supply
Normally；When external battery lights up as 100%, 1,2,13,14 feet of comparator U2 export low level, at this time LED1, LED2, LED3,
LED4 is bright；When electricity is 75%, LED1, LED2, LED3 are bright；When electricity is 50%, LED1, LED2 are bright；When electricity is 30%, LED1
It is bright；When electricity is lower than 30%, all extinguish.
Foregoing description is only the description to the utility model preferred embodiment, not to any limit of the scope of the utility model
Fixed, any change, the modification that the those of ordinary skill in the utility model field does according to the disclosure above content belong to right and want
Seek the protection scope of book.
Claims (7)
1. a kind of Vehicular direct-current UPS control system, which is characterized in that including charging circuit (1), uninterrupted switch unit (2), ginseng
Counting collection unit (3) and electricity display unit (4), wherein
The charging circuit (1) is used to power to external battery (5) charging and mobile unit；
The uninterrupted switch unit (2) between vehicle power and external battery (5) electric power for switching；
The parameter acquisition unit (3) for acquiring the voltage parameter of external battery (5) in real time；
Electricity of the electricity display unit (4) for external battery (5) is shown.
2. a kind of Vehicular direct-current UPS control system according to claim 1, which is characterized in that the charging circuit (1) is
The reduction voltage circuit of charge controlling chip composition, for charging for external battery (5).
3. a kind of Vehicular direct-current UPS control system according to claim 1, which is characterized in that the uninterrupted switching is single
First (2) include relay and driving circuit.
4. a kind of Vehicular direct-current UPS control system according to claim 1, which is characterized in that the parameter acquisition unit
It (3) include comparator and sampling resistor, for acquiring external battery (5) information about power.
5. a kind of Vehicular direct-current UPS control system according to claim 4, which is characterized in that the comparator it is specific
Model LMV139.
6. a kind of Vehicular direct-current UPS control system according to claim 1, which is characterized in that the electricity display unit
(4) include LED and current-limiting resistance, be used to indicate the information about power of external battery.
7. a kind of Vehicular direct-current UPS control system according to claim 1, which is characterized in that the charging circuit (1) is adopted
With BUCK topological structure, charging circuit (1) and the ground of external battery (5) are non-isolated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920539799.XU CN209488260U (en) | 2019-04-19 | 2019-04-19 | A kind of Vehicular direct-current UPS control system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920539799.XU CN209488260U (en) | 2019-04-19 | 2019-04-19 | A kind of Vehicular direct-current UPS control system |
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| CN209488260U true CN209488260U (en) | 2019-10-11 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109936216A (en) * | 2019-04-19 | 2019-06-25 | 中国电子科技集团公司第五十八研究所 | A kind of Vehicular direct-current uninterruptible power supply control system |
-
2019
- 2019-04-19 CN CN201920539799.XU patent/CN209488260U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109936216A (en) * | 2019-04-19 | 2019-06-25 | 中国电子科技集团公司第五十八研究所 | A kind of Vehicular direct-current uninterruptible power supply control system |
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