CN210380354U - Vehicle-mounted power supply system - Google Patents
Vehicle-mounted power supply system Download PDFInfo
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- CN210380354U CN210380354U CN201921787042.9U CN201921787042U CN210380354U CN 210380354 U CN210380354 U CN 210380354U CN 201921787042 U CN201921787042 U CN 201921787042U CN 210380354 U CN210380354 U CN 210380354U
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Abstract
The utility model provides an on-vehicle power supply system, including the direct current output of commercial power/oil machine, exchange output circuit, commercial power/oil machine give lithium cell group charging circuit, solar panel gives lithium cell group charging circuit and the direct alternating current output of lithium cell group, direct current output circuit, the utility model discloses use the lithium cell group can reduce on-vehicle power supply system's volume and weight, reduce on-vehicle power supply's maintenance cost, charge for lithium cell group through a plurality of interfaces that charge, make the utility model discloses convenient to use, the power supply is stable incessant, uses the charging panel circuit to carry out the syllogic to lithium cell group and charges, can shorten the charge time of lithium cell group, prevents that the lithium cell group from overcharging, overdischarging, prolongs the life of lithium cell group to carry out ground connection detection protection to on-vehicle power supply system, with the safe operation of guaranteeing.
Description
Technical Field
The utility model belongs to the technical field of the vehicle mounted power supply, a vehicle mounted power system is related to.
Background
When the existing power system is used for field operation (such as base station maintenance, repair and the like), different types of outputs are needed to provide temporary power supply for power supply equipment, and the power supply process is uninterrupted so as to facilitate maintenance and repair operation; the traditional vehicle-mounted power supply system supplies power through a commercial power and an oil engine, although a gasoline or diesel generator can guarantee uninterrupted power supply when no commercial power exists, huge noise pollution can be generated, a large amount of non-renewable energy is consumed, the power supply mode is single, and the field operation progress is seriously influenced under the condition that gasoline and diesel are insufficient or the machine breaks down; the traditional vehicle-mounted power supply mainly comprises a switching power supply and a lead-acid storage battery pack, and the lead-acid storage battery pack is small in capacity, large in size, short in service life and required to be maintained and replaced regularly, so that human resources and maintenance cost are increased.
SUMMERY OF THE UTILITY MODEL
In order to achieve the purpose, the utility model provides a vehicle-mounted power supply system, which can supply power to a battery pack uninterruptedly through a mains supply, an oil engine and a solar panel, and has the advantages of convenient use, simple operation and stable power supply; the lead-acid storage battery pack is replaced by the lithium battery pack, the capacity of the lithium battery pack is large, the size is small, the service life is long, the replacement and maintenance period is prolonged, the maintenance cost is reduced, a user is warned in time when the input of the lithium battery pack is abnormal, and the voltage protection circuit is cut off.
The utility model adopts the technical scheme that the vehicle-mounted power supply system comprises a commercial power/oil engine input port, the commercial power/oil engine input port is sequentially connected with an input switch, a lightning protection module and an EMI module, the output end of the EMI module is connected with an input under-voltage over-current leakage protection detection circuit, the input under-voltage over-current leakage protection detection circuit is sequentially connected with a rectification filter module and a DC/DC module a, and the output end of the DC/DC module a is respectively connected with a DC output port a and a DC output port b; the output end of the EMI module is also connected with an alternating current switch, and the alternating current switch is connected with an alternating current output port;
the output end of the rectification filtering module is also sequentially connected with a DC/DC module b, a charging module and a lithium battery pack;
the output end of the lithium battery pack is sequentially connected with the inversion module, the alternating current switching module and the alternating current output port;
the output end of the lithium battery pack is sequentially connected with a direct current switch a, a DC/DC module c and a direct current switch b, the direct current switch b is respectively connected with a direct current output port a and a direct current output port b, the direct current switch a is connected with a solar silicon power generation input port, and the direct current switch a is further connected with a charging module.
Furthermore, the input overvoltage, undervoltage, overcurrent and leakage protection detection circuit comprises an input overvoltage protection circuit, an input undervoltage protection circuit, an input overcurrent protection circuit, an input leakage protection circuit and a grounding detection alarm circuit which are sequentially connected in series.
Furthermore, the ground detection alarm circuit comprises a resistor R1, one end of the resistor R1 is connected with the voltage input end, and the other end of the resistor R1 is respectively connected with a resistor R3 and a capacitor C1 in series and then is grounded; the other end of the resistor R1 is also connected in series with one end of a resistor R6, the other end of the resistor R6 is respectively connected with one end of a capacitor C2, the cathode of a diode D3 and the positive input end of an operational amplifier U3, and the other end of the capacitor C2 and the diode D3 are both grounded; the other end of the resistor R1 is sequentially connected with one end of a resistor R2, a diode D1 and a resistor R4 in series, the other end of the resistor R4 is respectively connected with the negative input end of the operational amplifier U3 and one end of a capacitor C3, and the other end of the capacitor C3 is connected with the output end of the operational amplifier U3; the other end of the resistor R4 is also connected with a voltage input end through a resistor R5, the other end of the resistor R4 is connected with the cathode of a diode D2, and the anode of the diode D2 is grounded;
the output end of the operational amplifier U3 is further connected with one end of a resistor R7, the other end of the resistor R7 is connected with the base of a triode Q1, the collector of the triode Q1 is connected with the voltage input end after being connected with a resistor R8 in series, the emitter of the triode Q1 is connected with a pin 2 of JP2, the pin 2 of JP2 is further connected with a pin 4 of a pin bank JP1, a pin 1 of JP2 is connected with one end of a buzzer SP1, the other end of the buzzer SP1 is grounded, the pin 1 of JP2 is further connected with a transformer B through a pin 2 of a pin bank JP1, a pin 5 of the pin bank JP1 is grounded, a pin 3 of the pin bank JP1 is connected with a pin 3 of a rectifier bridge U1, a pin 1 of the rectifier bridge U1 is connected with a transformer A through a pin 1 of the pin bank JP1, and a pin 6 of the pin JP1 is connected between the resistor R2 and;
Further, the model of the inverter module is INV 242201000.
Further, the EMI module is of a model number CW4EL 2-20A-S.
Further, the input switching and the alternating current switching are both alternating current relays with the model number of NT90RNCE220CB, and the direct current switching a and the direct current switching b are direct current relays with the model number of NT90NCE12 CB.
Further, the model of the rectifier bridge U1 is L7812, and the model of the amplifier U2 is LM 358M.
The utility model has the advantages that: 1. the utility model can save non-renewable energy to a certain extent by charging the battery pack through the commercial power, the oil engine and the solar panel, and can ensure stable and uninterrupted power supply when the commercial power and the oil engine are not supplied enough; 2. the utility model uses the lithium battery pack to replace the lead-acid storage battery pack, the lithium battery pack has large capacity, small volume and long service life, and the maintenance cost of the vehicle-mounted power supply can be reduced by using the lithium battery pack; 3. the utility model arranges a grounding detection alarm circuit in the input circuit of the commercial power/oil engine, when the shell leaks electricity, the equipment sends out buzzing sound and cuts off the alternating voltage to ensure the safe operation of the vehicle-mounted power supply; 4. the utility model discloses use the syllogic to charge for lithium cell group charging, can effectual safety control lithium cell group charge-discharge performance, the life of extension lithium cell group.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a frame diagram of the present invention.
Fig. 2 is a block diagram of the detection protection circuit of the present invention.
Fig. 3 is a schematic diagram of a ground detection alarm circuit.
Fig. 4 is a charging pad circuit for three-stage charging.
In the figure, 1, a mains supply/oil engine input port, 2, an input switch, 3, a lightning protection module, 4, an EMI module, 5, an input under-voltage over-current leakage protection detection circuit, 6, a rectification filter module, 7, a DC/DC module b, 8, a charging module, 9, a lithium battery pack, 10, a solar silicon power input port, 11, an inverter module, 12, an alternating current switch, 13, an alternating current output port, 14, a direct current switch a, 15, a DC/DC module c, 16, a direct current switch b, 17, a direct current output port b, 18, a direct current output port a, 19, a DC/DC module a, 51, an input over-voltage protection circuit, 52, an input under-voltage protection circuit, 53, an input over-current protection circuit, 54, an input leakage protection circuit and 55, a grounding alarm detection circuit.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The structural block diagram of the vehicle-mounted power supply system is shown in figure 1, and comprises a lithium battery charging circuit, a lithium battery power supply circuit, a commercial power/oil engine direct power supply circuit and a solar battery direct power supply circuit, wherein the lithium battery charging circuit comprises a commercial power/oil engine charging circuit and a solar battery charging circuit, the commercial power/oil engine charging circuit comprises an input switch 2 connected with an input port 1 of the commercial power/oil engine, the input switch 2 is used for switching a power supply input mode into commercial power input or oil engine input, the input switch 2 is sequentially connected with a lightning protection module 3 and an EMI module 4, the lightning protection module 3 discharges input instantaneous large current to protect electric equipment, the EMI module 4 inhibits external interference of the input current to improve the current quality, the conduction and radiation generated during the operation of the vehicle-mounted power supply system can be greatly weakened, the lightning protection module 3 is connected with the EMI module 4 in series to effectively prevent, the EMI module 4 transmits current to the input under-voltage over-current and over-current leakage protection detection circuit 5, and the input under-voltage over-current and over-current leakage protection detection circuit 5 inputs safe current to the lithium battery pack 9 for storage through the rectifying and filtering module 6, the DC/DC module b7 and the charging module 8; the solar battery charging circuit comprises a direct current switch a14 connected with the solar silicon power input port 10, the direct current switch a14 transmits solar input current to the charging module 8 and the lithium battery pack 9 for storage, and the charging module 8 can protect the lithium battery pack 9 when input short circuit occurs, input power is too large, the ambient temperature is too high, and overcurrent occurs.
The lithium battery pack power supply circuit comprises a direct current output power supply and an alternating current output power supply, the lithium battery pack 9 is connected with an inversion module 11 during alternating current output, the inversion module 11 converts direct current voltage into alternating current voltage, and then the alternating current voltage is used by an alternating current load through an alternating current switching 12 and an alternating current output port 13; during direct current output, the lithium battery pack 9 is sequentially connected with a direct current switch a14, a DC/DC module c15 and a direct current switch b16, direct current voltage is respectively transmitted to a direct current output port a18 and a direct current output port b17 by the direct current switch b16 to be used by a direct current load, and the circuit converts the direct current voltage into 24V voltage and outputs the 24V voltage.
When the commercial power/oil engine direct current output supplies power, the direct current voltage passing through the rectifying and filtering module 6 is directly converted into 24V voltage through the DC/DC module a19 to be output; when the commercial power/oil engine is supplied with power by alternating current output, the alternating current voltage which removes interference from the EMI module 4 flows through the alternating current switch 12 and the alternating current output port 13 to be supplied with power.
The solar energy input voltage in the solar panel direct power supply circuit is converted into 24V direct current voltage through direct current switching a14, a DC/DC module c15 and direct current switching b16 to be output and supplied.
The structural block diagram of the input overvoltage, undervoltage, overcurrent and leakage protection detection circuit 5 is shown in fig. 2, and includes an input overvoltage protection circuit 51, an input undervoltage protection circuit 52, an input overcurrent protection circuit 53, an input leakage protection circuit 54 and a ground detection alarm circuit 55.
As shown in fig. 3, the ground fault detection and alarm circuit 55 includes a resistor R1, one end of the resistor R1 is connected to the voltage input end, the other end of the resistor R1 is connected in series with the resistor R3 and then grounded, two ends of the capacitor C1 are connected in parallel with two ends of the resistor R3, the other end of the resistor R1 is further connected in series with one end of a resistor R6, the other end of the resistor R6 is connected to one end of a capacitor C2, the cathode of the diode D3 and the positive input end of the operational amplifier U3, the other end of the capacitor C2 and the anode of the diode D3 are both grounded, the other end of the resistor R1 is further connected in series with one end of a resistor R2, a diode D1 and a resistor R4, the other end of the resistor R4 is connected to the negative input end of the operational amplifier U; the other end of the resistor R4 is connected with the voltage input end after being connected with the resistor R5 in series, the other end of the resistor R4 is connected with the cathode of the diode D2, and the anode of the diode D2 is grounded.
The output end of the operational amplifier U3 is further connected with one end of a resistor R7, the base of a transistor Q1 at the other end of the resistor R7, the collector of the transistor Q1 is sequentially connected with a resistor R8 and a voltage input end, the emitter of the transistor Q1 is connected with pin 2 of JP2, pin 2 of JP2 is further connected with pin 4 of a pin bank JP1, pin 1 of JP2 is connected with one end of a buzzer SP1, the other end of the buzzer SP1 is grounded, pin 1 of JP2 is further connected with a transformer B through pin 2 of the pin bank JP1, pin 5 of the pin JP1 is grounded, pin 1 of the rectifier bridge U1 is connected with a transformer A through pin 1 of the pin bank JP1, pin 3 of the pin bank JP1 is connected with pin 3 of the rectifier bridge U1, pin 2 of the rectifier bridge U1 is respectively connected with the power input end of the amplifier U1, one end of the capacitor C1, pin 4 of the capacitor C1 is connected with the other end of the capacitor C1, and the power supply end of the amplifier, one end of the capacitor C5 is connected to the voltage input end, and the other end of the capacitor C5 and the grounding end of the amplifier U2 are both grounded.
The model of the rectifier bridge U1 is L7812, the model of the amplifier U2 is LM358M, and the high-quality-level chip is adopted, so that the output result is more accurate, and the control and management of the voltage are better.
When the ground of the vehicle-mounted power supply system is disconnected, the resistor R2 and the resistor R3 respectively collect input divided voltage of the vehicle-mounted power supply and compare the input divided voltage with reference voltage, when the voltage collected by the resistor R3 is higher than the reference voltage of the diode D3, the base electrode of the triode Q1 is at a high level, the buzzer SP1 is conducted to emit a loud sound to warn workers that the vehicle-mounted power supply system is in ground fault, further detection and check are needed to ensure the operation safety and personal safety of equipment, and meanwhile, the ground detection warning circuit 55 automatically cuts off a circuit to protect the vehicle-mounted power supply system.
In the utility model, the input switch 2 and the AC switch 12 are AC relays, the AC relay is NT90RNCE220CB, when the commercial power and the oil engine are connected simultaneously, the input switch 2 is preferentially connected with the commercial power for power supply, when the commercial power/the oil engine and the lithium battery pack are simultaneously AC outputted, the AC switch 12 is preferentially connected with the commercial power/the oil engine for AC output power supply; the direct current switch a14 and the direct current switch b16 are direct current relays, the direct current relays are NT90NCE12CB produced by Nippoford, when the solar panel and the lithium battery pack 9 are simultaneously supplied with direct current, the direct current switch a14 is preferentially connected with the solar panel for supplying power by direct current output, when the commercial power/oil engine and the lithium battery pack 9 are simultaneously output with direct current, the contact of the direct current relay of the direct current switch b16 is switched to the DC/DC module a19, and the commercial power/oil engine is preferentially selected for supplying power by direct current output; otherwise to DC/DC block c 15; the utility model discloses the alternating current relay and the direct current relay who choose for use are small, the contact passes through that electric current is big, switching time is fast, can satisfy the power consumption demand of each equipment among the vehicle power system.
The utility model discloses well lithium cell group 9 ' S input voltage and output voltage are 21.5V ~ 29.2V, inversion module 11 chooses for use be the purpose of the gentle production of shi INV242201000, inversion module 11 ' S input voltage is 21.5V ~ 30V, output alternating voltage is 220V, the precision is 10%, power is 1000W, efficiency can reach 85% at most, have the function of preventing input transposition, short-circuit protection, inversion module 11 ' S volume is only 135mm 210mm, EMI module 4 ' S model is CW4EL2-20A-S, the producer is taiwan CANNYWELL, the utility model discloses the device homoenergetic high density that uses is integrated, satisfies vehicle power system ' S charge-discharge management completely.
The utility model discloses set up charging circuit as shown in fig. 4, the reference numeral of each component in fig. 4 and fig. 3 is separately, adopt chip LT8490EUKJ # PBF and peripheral circuit to carry out the syllogic for lithium cell group 9 and charge, DC/DC module b7 is connected to the interface XS1 of this circuit, interface XS4 connects gradually direct current and switches a14 and solar energy silicon and send out input port 10, interface XS2 and XS3 all connect the input of lithium cell group 9; the charging circuit automatically adjusts the current input into the lithium battery pack 9, the circuit adjusts the set voltage to 29.2V, and the lithium battery pack 9 is charged in a three-stage mode; trickle charge is carried out to the first stage, treat that the voltage of lithium cell group 9 rises to entering second stage constant current charging mode when setting for 70% of voltage, rise to 98% of setting for voltage until the voltage of lithium cell group 9, change over to the constant voltage charging mode, charge until the voltage of lithium cell group 9 is full of with setting for voltage, use the state of charge of syllogic charging ability effective management lithium cell group 9, prevent that lithium cell group 9 from overcharging in order to protect lithium cell group 9, the life of extension lithium cell group 9.
The utility model discloses when commercial power/oily machine input work, input switches 2 according to commercial power/oily machine input port 1's input mode, switches input mode and transmits input voltage to input under-voltage overcurrent leakage protection detection circuitry 5 through lightning protection module 3 and EMI module 4, the voltage of transmission gets into rectification filter module 6 and converts into the direct current after detecting, this direct current passes through DC/DC module a19 and converts into the required voltage of consumer, input direct current output port a18 and direct current output port b17 respectively and supply the consumer to use; the voltage input by the commercial power/oil engine can also be directly connected in series with the alternating current switch 12 and the alternating current output port after passing through the input switch 2, the lightning protection module 3 and the EMI module 4, and is used by an alternating current load; the input voltage of the commercial power/oil engine can be converted into direct current through rectification and filtering, then the direct current is converted into voltage required by the lithium battery pack 9 through the DC/DC module b7, and the voltage is input into the lithium battery pack 9 through the charging module 8 for storage; the voltage of the lithium battery pack 9 can be charged by solar energy, the solar panel inputs the voltage into the vehicle-mounted power supply system through the solar silicon power input port 10, and the voltage enters the lithium battery pack 9 for storage through the direct current switching a14 and the charging module 8; the solar power generation can be converted into voltage required by a direct current load through direct current switching a14 and a DC/DC module c15, and the voltage is directly output for the load through direct current switching b 16; when the power supply of the commercial power/oil engine and the solar panel is unavailable, the lithium battery pack 9 outputs the stored electric energy in a direct current and alternating current mode, and the voltage output by the lithium battery pack 9 during the direct current output is converted into the voltage required by the direct current load through the direct current switch a14, the DC/DC module c15 and the direct current switch b16 and is used by the direct current load; when the lithium battery pack 9 outputs alternating current, the output voltage is converted into alternating current through the inverter module 11, and the alternating current is used by an alternating current load through the exchange switch 12; the utility model discloses a multiple charge mode and power supply mode can satisfy vehicle mounted power system under the various condition, different consumer's power demand, convenient to use, and uses lithium cell group 9 to reduce vehicle mounted power system's weight and volume, and convenience of customers carries.
It is to be noted that, in the present invention, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
All the embodiments in the present specification are described in a related manner, and the same and similar parts among the embodiments may be referred to each other, and each embodiment focuses on the differences from the other embodiments.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.
Claims (7)
1. The vehicle-mounted power supply system is characterized by comprising a mains supply/oil engine input port (1), wherein the mains supply/oil engine input port (1) is sequentially connected with an input switch (2), a lightning protection module (3) and an EMI module (4), the output end of the EMI module (4) is connected with an input under-voltage over-current leakage protection detection circuit (5), the input under-voltage over-current leakage protection detection circuit (5) is sequentially connected with a rectification filter module (6) and a DC/DC module a (19), and the output end of the DC/DC module a (19) is respectively connected with a DC output port a (18) and a DC output port b (17); the output end of the EMI module (4) is also connected with an alternating current switch (12), and the alternating current switch (12) is connected with an alternating current output port (13);
the output end of the rectifying and filtering module (6) is also sequentially connected with a DC/DC module b (7), a charging module (8) and a lithium battery pack (9);
the output end of the lithium battery pack (9) is sequentially connected with an inverter module (11), an alternating current switch (12) and an alternating current output port (13);
the output end of the lithium battery pack (9) is sequentially connected with a direct current switch a (14), a DC/DC module c (15) and a direct current switch b (16), the direct current switch b (16) is respectively connected with a direct current output port a (18) and a direct current output port b (17), the direct current switch a (14) is connected with a solar silicon power generation input port (10), and the direct current switch a (14) is further connected with a charging module (8).
2. The vehicle-mounted power supply system according to claim 1, wherein the input overvoltage, undervoltage, overcurrent and leakage protection detection circuit (5) comprises an input overvoltage protection circuit (51), an input undervoltage protection circuit (52), an input overcurrent protection circuit (53), an input leakage protection circuit (54) and a ground detection alarm circuit (55) which are connected in series in sequence.
3. The vehicular power system according to claim 2, wherein the ground fault detection alarm circuit (55) comprises a resistor R1, one end of the resistor R1 is connected to the voltage input end, and the other end of the resistor R1 is connected in series with a resistor R3 and a capacitor C1 respectively and then grounded; the other end of the resistor R1 is also connected in series with one end of a resistor R6, the other end of the resistor R6 is respectively connected with one end of a capacitor C2, the cathode of a diode D3 and the positive input end of an operational amplifier U3, and the other end of the capacitor C2 and the diode D3 are both grounded; the other end of the resistor R1 is sequentially connected with one end of a resistor R2, a diode D1 and a resistor R4 in series, the other end of the resistor R4 is respectively connected with the negative input end of the operational amplifier U3 and one end of a capacitor C3, and the other end of the capacitor C3 is connected with the output end of the operational amplifier U3; the other end of the resistor R4 is also connected with a voltage input end through a resistor R5, the other end of the resistor R4 is connected with the cathode of a diode D2, and the anode of the diode D2 is grounded;
the output end of the operational amplifier U3 is further connected with one end of a resistor R7, the other end of the resistor R7 is connected with the base of a triode Q1, the collector of the triode Q1 is connected with the voltage input end after being connected with a resistor R8 in series, the emitter of the triode Q1 is connected with a pin 2 of JP2, the pin 2 of JP2 is further connected with a pin 4 of a pin bank JP1, a pin 1 of JP2 is connected with one end of a buzzer SP1, the other end of the buzzer SP1 is grounded, the pin 1 of JP2 is further connected with a transformer B through a pin 2 of a pin bank JP1, a pin 5 of the pin bank JP1 is grounded, a pin 3 of the pin bank JP1 is connected with a pin 3 of a rectifier bridge U1, a pin 1 of the rectifier bridge U1 is connected with a transformer A through a pin 1 of the pin bank JP1, and a pin 6 of the pin JP1 is connected between the resistor R2 and;
pin 2 of rectifier bridge U1 connects electric capacity C4 one end, amplifier U2's power input respectively, the electric capacity C4 other end is connected to rectifier bridge U1's pin 4, the electric capacity C4 other end ground connection, electric capacity C5 one end is connected to amplifier U2's power output end, electric capacity C5 one end connection voltage input end, the electric capacity C5 other end all grounds with amplifier U2's earthing terminal.
4. The vehicular power system according to claim 1, characterized in that the inverter module (11) has a model number INV 242201000.
5. The vehicular power system according to claim 1, wherein the EMI module (4) is of the type CW4EL 2-20A-S.
6. The vehicular power system according to claim 1, wherein the input switching (2) and the ac switching (12) are both ac relays of type NT90rnc e220CB, and the dc switching a (14) and the dc switching b (16) are dc relays of type NT90NCE12 CB.
7. The vehicle power system of claim 3, wherein the rectifier bridge U1 is of type L7812, and the amplifier U2 is of type LM 358M.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921787042.9U CN210380354U (en) | 2019-10-23 | 2019-10-23 | Vehicle-mounted power supply system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921787042.9U CN210380354U (en) | 2019-10-23 | 2019-10-23 | Vehicle-mounted power supply system |
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| CN210380354U true CN210380354U (en) | 2020-04-21 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20210273453A1 (en) * | 2018-08-02 | 2021-09-02 | Daihen Corporation | Grid Interconnection System, Interconnection Control Device and Grid Interconnection Method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20210273453A1 (en) * | 2018-08-02 | 2021-09-02 | Daihen Corporation | Grid Interconnection System, Interconnection Control Device and Grid Interconnection Method |
| US11916389B2 (en) * | 2018-08-02 | 2024-02-27 | Daihen Corporation | Grid interconnection system, interconnection control device and grid interconnection method |
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