CN219806716U - Portable multifunctional locomotive charger - Google Patents
Portable multifunctional locomotive charger Download PDFInfo
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- CN219806716U CN219806716U CN202321248719.8U CN202321248719U CN219806716U CN 219806716 U CN219806716 U CN 219806716U CN 202321248719 U CN202321248719 U CN 202321248719U CN 219806716 U CN219806716 U CN 219806716U
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- 230000003137 locomotive effect Effects 0.000 title claims abstract description 53
- 238000001514 detection method Methods 0.000 claims abstract description 24
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 20
- 239000003990 capacitor Substances 0.000 claims description 75
- 239000003381 stabilizer Substances 0.000 claims description 23
- 230000001105 regulatory effect Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 14
- 230000005611 electricity Effects 0.000 description 7
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses a portable multifunctional locomotive charger which comprises a main control circuit, a voltage stabilizing circuit, a switching power supply communication circuit, a unipolar connecting circuit and a voltage detection circuit, wherein the switching power supply communication circuit, the voltage stabilizing circuit, the unipolar connecting circuit and the voltage detection circuit are powered by an external switching power supply, the main control circuit and the voltage detection circuit are electrically connected with the voltage stabilizing circuit, the signal input end of the switching power supply communication circuit is electrically connected with the signal output end of the external switching power supply, and the two switching power supplies are connected with the main control circuit through the switching power supply communication circuit, so that one or two switching power supplies can be selected to supply power to a locomotive, and the two switching power supplies can be detached and carried conveniently. The portable multifunctional locomotive charger provided by the utility model has the effects that the detachable switching power supply is convenient to carry and use.
Description
Technical Field
The utility model relates to the technical field of charger control, in particular to a portable multifunctional locomotive charger.
Background
At present, locomotive charging mainly depends on a fixed type charger, and the installation of the fixed type charger has higher requirements on sites. In actual work, often because some locomotive storage battery packs are not used for a long time or the electric quantity of the storage battery packs is too much when overhauling, the condition of power shortage and undervoltage occurs, and then the locomotive is required to be pulled to a fixed charging area for charging through a shunting machine, so that great labor, fuel and time cost are consumed. Meanwhile, in winter in northern cities, the air temperature is very low, the storage battery pack is more in shortage of electricity and under voltage, and the locomotive queuing and charging conditions exist in a fixed charger area. The portable battery charger developed by some units is large in general size, heavy in weight, inconvenient to use and increases the manual carrying burden.
Disclosure of Invention
Aiming at the problems, the portable multifunctional locomotive charger is provided, and aims to enable two switching power supplies in the same charger to be split and carried by controlling the two switching power supplies to be used in series, so that the effect of convenience in carrying and use is achieved.
The specific technical scheme is as follows:
the utility model provides a portable multifunctional locomotive machine that charges, includes main control circuit, voltage stabilizing circuit, switching power supply communication circuit, unipolar connecting circuit and voltage detection circuit, switching power supply communication circuit, voltage stabilizing circuit, unipolar connecting circuit and voltage detection circuit are supplied power by external switching power supply, main control circuit with voltage detection circuit all with voltage stabilizing circuit electricity is connected, switching power supply communication circuit's signal input part with external switching power supply's signal output part electricity is connected, switching power supply communication circuit's signal output part with main control circuit's signal input part electricity is connected, main control circuit's control signal output part with unipolar connecting circuit signal input part electricity is connected, unipolar connecting circuit's signal output part with voltage detection circuit's signal input part electricity is connected, voltage detection circuit's signal output part with main control circuit's another signal input part electricity is connected.
The portable multifunctional locomotive charger is characterized in that the voltage stabilizing circuit comprises a capacitor C3, a capacitor C2, a voltage stabilizer U3, a capacitor C1 and a capacitor C4, wherein the input end of the voltage stabilizer U3 is electrically connected with an external switching power supply, the input end of the voltage stabilizer U3 is grounded through the capacitor C3, the capacitor C2 is connected with two ends of the capacitor C3 in parallel, the enabling end of the voltage stabilizer U3 is electrically connected with the input end of the voltage stabilizer U3, the bypass regulating end of the voltage stabilizer U3 is grounded through the capacitor C1, the output end of the voltage stabilizer U3 is grounded through the capacitor C4, and the common end of the voltage stabilizer U3 and the capacitor C4 serves as the output end to supply power to the main control circuit and the voltage detecting circuit.
The portable multifunctional locomotive charger further has the characteristics that the switch power supply communication circuit comprises a capacitor C13, a capacitor C19, a wire-to-board connector CN1, a resistor R23, a resistor R25 and a resistor R26, wherein a first terminal and a third terminal of the wire-to-board connector CN1 are respectively and electrically connected with different voltage output ends of the external switch, the third terminal of the wire-to-board connector CN1 is grounded through the capacitor C13, the capacitor C19 is connected in parallel with two ends of the capacitor C13, a second terminal of the wire-to-board connector CN1 is grounded, a fifth terminal of the wire-to-board connector CN1 is electrically connected with a second terminal thereof, a seventh terminal of the wire-to-board connector CN1 is electrically connected with the external switch power supply through the resistor R26, a seventh terminal of the wire-to-board connector CN1 is respectively connected with a eighth terminal thereof through the resistor R25, the wire-to-board connector CN is electrically connected with a fourth terminal of the master control circuit, and the wire-to-board connector CN is electrically connected with a fourth terminal of the master control circuit through the wire control circuit, and the wire-to-board connector CN is electrically connected with the fourth terminal of the master control circuit through the wire control circuit is connected with the fourth terminal of the master control circuit.
The portable multifunctional locomotive charger further has the characteristics that the switch power supply communication circuit further comprises a capacitor C14, a wire-to-board connector CN2 and a resistor R24, wherein a first terminal and a third terminal of the wire-to-board connector CN2 are respectively and electrically connected with different voltage output ends of the external switch, a third terminal of the wire-to-board connector CN2 is grounded through the capacitor C14, a fifth terminal of the wire-to-board connector CN2 is electrically connected with a second terminal of the wire-to-board connector CN2, a seventh terminal and a eighth terminal of the wire-to-board connector CN2 are respectively and electrically connected with a data control end and a clock control end of the main control circuit, a fourth terminal of the wire-to-board connector CN2 is used as a control end and is electrically connected with a second remote start-stop control end of the main control circuit, and a sixth terminal of the wire-to-board connector CN2 is electrically connected with a second alarm control end of the main control circuit through the resistor R24.
The portable multifunctional locomotive charger further has the characteristic that the unipolar connecting circuit comprises a resistor R4, a triode Q1, a switching diode D2, a relay K1, a connecting terminal P1 and a connecting terminal P2, one end of the resistor R4 is used as a control signal input end to be electrically connected with a control signal output end of the main control circuit, the other end of the resistor R4 is electrically connected with a base electrode of the triode Q1, an emitting electrode of the triode Q1 is grounded, a collector electrode of the triode Q1 is electrically connected with one contact of a second coil of the relay K1, the other contact of the second coil of the relay K1 is electrically connected with a cathode of the switching diode D2 after being electrically connected with the other contact of the second coil of the relay K1, a cathode of the switching diode D2 is also electrically connected with an external switching power supply, a collector electrode of the triode Q1 is also electrically connected with a middle connecting point of the switching diode D2, an anode of the switching diode D2 is grounded, two public ends of the relay K1 are connected with two output ends of the relay P1 as positive voltage signal contacts, two positive voltage terminals P are respectively connected with two output terminals P1, and two positive voltage terminals P are respectively connected with two positive voltage terminals of the two battery output terminals P1 are respectively.
The portable multifunctional locomotive charger further has the characteristics that the voltage detection circuit comprises a resistor R14, a resistor R15, a switching diode D3, a resistor R17, a resistor R16, a resistor R18, a resistor R19, an operational amplifier U5, a switching diode D4, a resistor R21, a resistor R20, a capacitor C8, a resistor R22 and a capacitor C12, wherein the negative voltage output end of the charger is electrically connected with the first negative signal input end of the operational amplifier U5 through the resistor R14 and the resistor R15, the positive signal output end of the battery is electrically connected with the first positive signal input end of the operational amplifier U5 through the resistor R17 and the resistor R16, the anode of the switching diode D3 is electrically connected with the first negative signal input end of the operational amplifier U5, the intermediate connection point of the switching diode D3 is electrically connected with the first positive signal input end of the operational amplifier U5, the first positive signal input end of the operational amplifier U5 is sequentially connected with the second positive signal input end of the operational amplifier U5 through the resistor R18 and the resistor R22 through the second positive signal input end of the resistor R22, the first positive signal input end of the switching diode D3 is electrically connected with the second positive signal input end of the operational amplifier U5 through the resistor R22, the positive signal input end of the switching diode D2 is also electrically connected with the first negative signal input end of the operational amplifier U5 through the resistor C20, the positive signal input end of the switching diode D is electrically connected with the first positive signal input end of the operational amplifier U5 through the resistor C is connected with the positive signal input end of the positive signal output end of the resistor C2, the first output end of the operational amplifier U5 is further electrically connected with the middle connection point of the switching diode D4, the anode of the switching diode D4 is grounded, and the cathode of the switching diode D4 is electrically connected with the output end of the voltage stabilizing circuit.
The portable multifunctional locomotive charger further comprises an external communication circuit, wherein the external communication circuit comprises a resistor R3, a transceiver U2, a resistor R1, a capacitor C17, an ESD electrostatic diode D1 and a wire-to-board connector U4, the RO end of the transceiver U2 is electrically connected with a first signal receiving and transmitting end of the main control circuit, the DI end of the transceiver U2 is electrically connected with a second signal receiving and transmitting end of the main control circuit, the RO end of the transceiver U2 is electrically connected with an external switching power supply through the resistor R3, the shutdown control end of the transceiver U2 is electrically connected with the receiving and transmitting control end of the transceiver U2, a common end of the resistor R2 is electrically connected with the external switching power supply, the power input end of the transceiver U2 is grounded through the capacitor C17, the power input end of the transceiver U2 is electrically connected with the external switching power supply, the power input end of the transceiver U2 is electrically connected with a pin A of the transceiver U1 through a pin, the second signal receiving end of the transceiver U2 is electrically connected with a pin B of the main control circuit, the transceiver U2 is electrically connected with a cathode wire of the transceiver U2 through a pin B, the second pin of the transceiver U2 is electrically connected with a cathode of the ESD wire of the transceiver U2 is electrically connected with a contact of the external switching power supply, the ESD wire of the external switching power supply is electrically connected with a cathode of the external switching power supply, and the ESD wire of the ESD wire is electrically connected with the ESD wire of the external switching power supply, and the ESD wire is electrically connected with the ESD wire.
The portable multifunctional locomotive charger is characterized by further comprising an alarm circuit, wherein the alarm circuit comprises a resistor R27, a triode Q4, a switch diode D5, a capacitor C18 and a buzzer, one end of the resistor R27 is used as a signal input end to be electrically connected with an alarm signal output end of the main control circuit, the other end of the resistor R27 is electrically connected with a base electrode of the triode Q4, an emitter electrode of the triode Q4 is grounded, a collector electrode of the triode Q4 is electrically connected with a middle connection point of the switch diode D5, an anode of the switch diode D5 is electrically connected with a cathode of the switch diode D5 through the capacitor C18, an anode of the switch diode D5 is also grounded, a cathode of the switch diode D5 is electrically connected with an anode of the buzzer, a cathode of the switch diode D5 is also electrically connected with an external switch power supply, and a collector electrode of the triode Q4 is also electrically connected with a cathode of the buzzer.
In summary, the beneficial effects of this scheme are:
in the portable multifunctional locomotive charger provided by the utility model, the two switch power supplies are connected with the main control circuit through the switch power supply communication circuit, so that one or two switch power supplies can be selected to supply power to the locomotive, and the two switch power supplies can be detached and carried for convenient use. The portable multifunctional locomotive charger provided by the utility model has the effects that the detachable switching power supply is convenient to carry and use.
Drawings
FIG. 1 is a system block diagram of a portable multi-function locomotive charger of the present utility model;
FIG. 2 is a schematic diagram of a voltage stabilizing circuit of the portable multifunctional locomotive charger of the present utility model;
FIG. 3 is a schematic diagram of a communication circuit of a switching power supply of the portable multifunctional locomotive charger of the utility model;
FIG. 4 is a schematic diagram of a unipolar connecting circuit of the portable multifunction locomotive charger of the present utility model;
FIG. 5 is a schematic diagram of a voltage detection circuit of the portable multifunctional locomotive charger of the present utility model;
FIG. 6 is a schematic diagram of a communication circuit of the portable multifunctional locomotive charger of the present utility model;
fig. 7 is a schematic diagram of an alarm circuit structure of the portable multifunctional locomotive charger of the utility model.
Detailed Description
The technical solutions of the present utility model will be clearly and completely described in conjunction with the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.
The utility model will be further illustrated, but is not limited, by the following examples.
Fig. 1 is a system block diagram of a portable multifunctional locomotive charger according to the present utility model, fig. 2 is a schematic diagram of a voltage stabilizing circuit of the portable multifunctional locomotive charger according to the present utility model, fig. 3 is a schematic diagram of a switching power supply communication circuit of the portable multifunctional locomotive charger according to the present utility model, fig. 4 is a schematic diagram of a unipolar connection circuit of the portable multifunctional locomotive charger according to the present utility model, fig. 5 is a schematic diagram of a voltage detection circuit of the portable multifunctional locomotive charger according to the present utility model, fig. 6 is a schematic diagram of a communication circuit of the portable multifunctional locomotive charger according to the present utility model, and fig. 7 is a schematic diagram of an alarm circuit of the portable multifunctional locomotive charger according to the present utility model, as shown in fig. 1 to 7, according to the present embodiment of the present utility model. The voltage detection circuit is electrically connected with the external switching power supply, the signal input end of the switching power supply communication circuit is electrically connected with one signal input end of the main control circuit, the control signal output end of the main control circuit is electrically connected with the signal input end of the unipolar connecting circuit, the signal output end of the unipolar connecting circuit is electrically connected with the signal input end of the voltage detection circuit, and the signal output end of the voltage detection circuit is electrically connected with the other signal input end of the main control circuit.
Note that, the master control circuit adopts an MCU with a model GD32E230C8T 6.
In the above embodiment, the voltage stabilizing circuit includes a capacitor C3, a capacitor C2, a voltage stabilizer U3, a capacitor C1 and a capacitor C4, where the input end of the voltage stabilizer U3 is electrically connected to the external switching power supply, the input end of the voltage stabilizer U3 is further grounded through the capacitor C3, the capacitor C2 is connected in parallel to two ends of the capacitor C3, the enable end of the voltage stabilizer U3 is electrically connected to the input end thereof, the bypass adjustment end of the voltage stabilizer U3 is grounded through the capacitor C1, the output end of the voltage stabilizer U3 is grounded through the capacitor C4, and the common end of the voltage stabilizer U3 and the capacitor C4 is used as the output end to supply power to the main control circuit and the voltage detection circuit.
It should be noted that the model of the voltage regulator U3 is SPX5205M5-L-3-3/TR.
In the above embodiment, the switching power supply communication circuit includes the capacitor C13, the capacitor C19, the wire-to-board connector CN1, the resistor R23, the resistor R25, and the resistor R26, the first terminal and the third terminal of the wire-to-board connector CN1 are electrically connected to different voltage output ends of the external switch, the third terminal of the wire-to-board connector CN1 is grounded through the capacitor C13, the capacitor C19 is connected in parallel to both ends of the capacitor C13, the second terminal of the wire-to-board connector CN1 is grounded, the fifth terminal of the wire-to-board connector CN1 is electrically connected to the second terminal thereof, the seventh terminal of the wire-to-board connector CN1 is electrically connected to the external switching power supply through the resistor R26, the eighth terminal of the wire-to-board connector CN1 is electrically connected to the data control end of the master circuit, the fourth terminal of the wire-to-board connector CN1 is electrically connected to the first remote on-off control end of the master circuit as the control end, and the sixth terminal of the wire-to-board connector CN1 is electrically connected to the alarm circuit through the resistor R23.
In the above embodiment, the switching power supply communication circuit further includes a capacitor C14, a wire-to-board connector CN2 and a resistor R24, the first terminal and the third terminal of the wire-to-board connector CN2 are electrically connected to different voltage output ends of the external switch, the third terminal of the wire-to-board connector CN2 is grounded through the capacitor C14, the fifth terminal of the wire-to-board connector CN2 is electrically connected to the second terminal thereof, the seventh terminal and the eighth terminal of the wire-to-board connector CN2 are electrically connected to the data control end and the clock control end of the main control circuit, the fourth terminal of the wire-to-board connector CN2 is electrically connected to the second remote on-off control end of the main control circuit as the control end, and the sixth terminal of the wire-to-board connector CN2 is electrically connected to the second alarm control end of the main control circuit through the resistor R24.
It should be noted that the wire-to-board connectors CN1 and CN2 are PHD-2x4A.
In the above embodiment, the unipolar connecting circuit includes the resistor R4, the triode Q1, the switching diode D2, the relay K1, the binding post P1 and the binding post P2, one end of the resistor R4 is electrically connected with the control signal output end of the main control circuit as the control signal input end, the other end of the resistor R4 is electrically connected with the base of the triode Q1, the emitter of the triode Q1 is grounded, the collector of the triode Q1 is electrically connected with one contact of the second coil of the relay K1, the other contact of the second coil of the relay K1 is electrically connected with the other contact of the second coil thereof and then electrically connected with the cathode of the switching diode D2, the cathode of the switching diode D2 is also electrically connected with the external switching power supply, the collector of the triode Q1 is also electrically connected with the intermediate connection point of the switching diode D2, the anode of the switching diode D2 is grounded, the two common ends of the relay K1 are electrically connected with one contact of the binding post P1 as the charger output end, the two normally open contacts of the relay K1 are electrically connected with one contact of the battery positive signal output end and the other contact of the two normally open contacts P1, the two negative voltage terminals of the two terminals of the battery output terminals P1 are respectively connected with the two contacts of the positive voltage terminal P2.
The type of the relay K1 is HFKA-012-2ZST
In the above embodiment, the voltage detection circuit includes a resistor R14, a resistor R15, a switching diode D3, a resistor R17, a resistor R16, a resistor R18, a resistor R19, an operational amplifier U5, a switching diode D4, a resistor R21, a resistor R20, a capacitor C8, a resistor R22, and a capacitor C12, the negative voltage output terminal of the charger is electrically connected with the first negative signal input terminal of the operational amplifier U5 through the resistor R14 and the resistor R15, the positive signal output terminal of the battery is electrically connected with the first positive signal input terminal of the operational amplifier U5 through the resistor R17 and the resistor R16, the anode of the switching diode D3 is electrically connected with the first negative signal input terminal of the operational amplifier U5 through the cathode of the switching diode D3, the intermediate connection point of the switching diode D3 is electrically connected with the first positive signal input terminal of the operational amplifier U5, the first positive signal input terminal of the operational amplifier U5 is electrically connected with the second output terminal thereof through the resistor R18, the second negative signal input end of the operational amplifier U5 is electrically connected with the second output end of the operational amplifier U5, the grounding end of the operational amplifier U5 is grounded, the grounding end of the operational amplifier U5 is also electrically connected with the second positive signal input end of the operational amplifier U through a resistor R21, a capacitor C8 is connected with two ends of the resistor R21 in parallel, the second positive signal input end of the operational amplifier U5 is also electrically connected with the output end of the voltage stabilizing circuit through a resistor R20, the first negative signal input end of the operational amplifier U5 is electrically connected with the first output end of the voltage stabilizing circuit through a resistor R19, the first output end of the operational amplifier U5 is sequentially grounded through a resistor R22 and a capacitor C12, the common end of the resistor R22 and the capacitor C12 is electrically connected with the battery voltage signal input end of the main control circuit as a signal output end, the first output end of the operational amplifier U5 is also electrically connected with the middle connection point of the switching diode D4, the anode of the switching diode D4 is grounded, and the cathode of the switching diode D4 is electrically connected with the output end of the voltage stabilizing circuit.
The model of the operational amplifier U5 is TP2272-VR.
In the above embodiment, the external communication circuit further includes an external communication circuit, the external communication circuit includes a resistor R3, a transceiver U2, a resistor R1, a capacitor C17, an ESD electrostatic diode D1, and a wire-to-board connector U4, the RO end of the transceiver U2 is electrically connected to the first signal receiving and transmitting end of the main control circuit, the DI end of the transceiver U2 is electrically connected to the second signal receiving and transmitting end of the main control circuit, the RO end of the transceiver U2 is electrically connected to the external switching power supply through the resistor R3, the shutdown control end of the transceiver U2 is electrically connected to the receiving and transmitting control end thereof, the common end of the two is electrically connected to the external switching power supply, the power input end of the transceiver U2 is electrically connected to the external switching power supply through the capacitor C17, the power input end of the transceiver U2 is electrically connected to the pin a thereof through the resistor R1, the pin B of the transceiver U2 is electrically connected to the third pin of the wire connector U4 through the resistor R2, the pin B of the transceiver U2 is electrically connected to the pin three-number contact of the wire connector U4, the common end of the two common ends of the two is electrically connected to the external switching power supply, the two pins of the two are electrically connected to the ESD diode D1, and the two pins of the two are electrically connected to the external switching power supply are electrically connected to the cathode pins of the ESD diode D1.
Note that, the transceiver U2 is of a model MAX13487EESA, and the ESD electrostatic diode D1 is of a model SDT23C712L02.
In the above embodiment, the alarm circuit further includes a resistor R27, a triode Q4, a switching diode D5, a capacitor C18, and a buzzer, where one end of the resistor R27 is electrically connected to the alarm signal output end of the main control circuit as a signal input end, the other end of the resistor R27 is electrically connected to the base of the triode Q4, the emitter of the triode Q4 is grounded, the collector of the triode Q4 is electrically connected to the middle connection point of the switching diode D5, the anode of the switching diode D5 is electrically connected to the cathode thereof through the capacitor C18, the anode of the switching diode D5 is further grounded, the cathode of the switching diode D5 is electrically connected to the anode of the buzzer, the cathode of the switching diode D5 is further electrically connected to the external switching power supply, and the collector of the triode Q4 is further electrically connected to the cathode of the buzzer.
The external switch power supply is used for converting 220V commercial power into voltage required by locomotive charging, and because the charging voltages of the electric locomotive and the diesel locomotive are different, the electric locomotive or the diesel locomotive can be respectively charged by selecting a single switch power supply or connecting two switch power supplies in series, the switch power supply communication circuit is used for transmitting operation information of the switch power supply to the main control circuit, the external switch power supply can also be used for supplying power to the control circuit, the main control circuit outputs control signals to the unipolar connecting circuit, the unipolar connecting circuit collects positive and negative signals of the switch power supply and positive and negative signals of a locomotive battery and transmits the positive and negative signals of the locomotive battery to the voltage detecting circuit, the voltage detecting circuit feeds back the detection signals to the main control circuit, the main control circuit can judge the operation condition of the external switch power supply and the charging condition of the locomotive battery through the feedback signals, and when the charger fails or the locomotive battery is full, the main control circuit outputs alarm signals to the alarm circuit to alarm.
The foregoing is merely illustrative of the preferred embodiments of the present utility model and is not intended to limit the embodiments and scope of the present utility model, and it should be appreciated by those skilled in the art that equivalent substitutions and obvious variations may be made using the teachings of the present utility model, which are intended to be included within the scope of the present utility model.
Claims (8)
1. A portable multifunctional locomotive charger is characterized in that: the voltage detection circuit is characterized by comprising a main control circuit, a voltage stabilizing circuit, a switching power supply communication circuit, a unipolar connecting circuit and a voltage detection circuit, wherein the switching power supply communication circuit, the voltage stabilizing circuit, the unipolar connecting circuit and the voltage detection circuit are powered by an external switching power supply, the main control circuit and the voltage detection circuit are electrically connected with the voltage stabilizing circuit, the signal input end of the switching power supply communication circuit is electrically connected with the signal output end of the external switching power supply, the signal output end of the switching power supply communication circuit is electrically connected with one signal input end of the main control circuit, the control signal output end of the main control circuit is electrically connected with the signal input end of the unipolar connecting circuit, the signal output end of the unipolar connecting circuit is electrically connected with the signal input end of the voltage detection circuit, and the signal output end of the voltage detection circuit is electrically connected with the other signal input end of the main control circuit.
2. The portable multi-functional locomotive charger of claim 1, wherein: the voltage stabilizing circuit comprises a capacitor C3, a capacitor C2, a voltage stabilizer U3, a capacitor C1 and a capacitor C4, wherein the input end of the voltage stabilizer U3 is electrically connected with an external switching power supply, the input end of the voltage stabilizer U3 is grounded through the capacitor C3, the capacitor C2 is connected in parallel with the two ends of the capacitor C3, the enabling end of the voltage stabilizer U3 is electrically connected with the input end of the voltage stabilizer U3, the bypass regulating end of the voltage stabilizer U3 is grounded through the capacitor C1, the output end of the voltage stabilizer U3 is grounded through the capacitor C4, and the common end of the voltage stabilizer U3 and the capacitor C4 is used as the output end to supply power to the main control circuit and the voltage detecting circuit.
3. The portable multi-functional locomotive charger of claim 1, wherein: the switching power supply communication circuit comprises a capacitor C13, a capacitor C19, a wire-to-board connector CN1, a resistor R23, a resistor R25 and a resistor R26, wherein a first terminal and a third terminal of the wire-to-board connector CN1 are respectively and electrically connected with different voltage output ends of the external switch, a third terminal of the wire-to-board connector CN1 is grounded through the capacitor C13, the capacitor C19 is connected in parallel with two ends of the capacitor C13, a second terminal of the wire-to-board connector CN1 is grounded, a fifth terminal of the wire-to-board connector CN1 is electrically connected with a second terminal thereof, a seventh terminal of the wire-to-board connector CN1 is electrically connected with the external switch power supply through the resistor R26, a seventh terminal of the wire-to-board connector CN1 is respectively and electrically connected with a data control end and a clock control end of the master control circuit, and a fourth terminal of the wire-to-board connector CN1 is electrically connected with a fourth terminal of the master control circuit as a fourth terminal of the wire-to-board connector CN1 is electrically connected with the fourth terminal of the alarm circuit through the resistor R23.
4. A portable multi-function locomotive charger according to claim 3, wherein: the switching power supply communication circuit further comprises a capacitor C14, a wire-to-board connector CN2 and a resistor R24, wherein a first terminal and a third terminal of the wire-to-board connector CN2 are respectively and electrically connected with different voltage output ends of the external switch, a third terminal of the wire-to-board connector CN2 is grounded through the capacitor C14, a fifth terminal of the wire-to-board connector CN2 is electrically connected with a second terminal of the wire-to-board connector CN2, a seventh terminal and an eighth terminal of the wire-to-board connector CN2 are respectively and electrically connected with a data control end and a clock control end of the main control circuit, a fourth terminal of the wire-to-board connector CN2 is used as a control end and is electrically connected with a second remote start-stop control end of the main control circuit, and a sixth terminal of the wire-to-board connector CN2 is electrically connected with a second alarm control end of the main control circuit through the resistor R24.
5. The portable multi-functional locomotive charger of claim 1, wherein: the unipolar connecting circuit comprises a resistor R4, a triode Q1, a switching diode D2, a relay K1, a wiring terminal P1 and a wiring terminal P2, wherein one end of the resistor R4 is used as a control signal input end to be electrically connected with a control signal output end of the main control circuit, the other end of the resistor R4 is electrically connected with a base electrode of the triode Q1, an emitting electrode of the triode Q1 is grounded, a collecting electrode of the triode Q1 is electrically connected with one contact of a second coil of the relay K1, the other contact of the second coil of the relay K1 is electrically connected with a cathode of the switching diode D2 after being electrically connected with the other contact of the second coil of the relay K1, a cathode of the switching diode D2 is also electrically connected with an external switching power supply, a collecting electrode of the triode Q1 is also electrically connected with an intermediate connecting point of the switching diode D2, two public ends of the relay K1 are electrically connected and then serve as positive voltage output ends of a charger, one contact of the two positive voltage terminals of the relay P1 is electrically connected with two normally-open signal output ends of the two normally-open terminals P1 are respectively connected with two contact terminals of the relay P1.
6. The portable multi-functional locomotive charger of claim 5, wherein: the voltage detection circuit comprises a resistor R14, a resistor R15, a switching diode D3, a resistor R17, a resistor R16, a resistor R18, a resistor R19, an operational amplifier U5, a switching diode D4, a resistor R21, a resistor R20, a capacitor C8, a resistor R22 and a capacitor C12, wherein the negative voltage output end of the charger is electrically connected with the first negative signal input end of the operational amplifier U5 through the resistor R14 and the resistor R15, the positive signal output end of the battery is electrically connected with the first positive signal input end of the operational amplifier U5 through the resistor R17 and the resistor R16, the anode of the switching diode D3 and the cathode thereof are electrically connected with the first negative signal input end of the operational amplifier U5, the middle connection point of the switching diode D3 is electrically connected with the first positive signal input end of the operational amplifier U5, the first positive signal input end of the operational amplifier U5 is electrically connected with the second output end thereof through the resistor R18, the second negative signal input end of the operational amplifier U5 is electrically connected with the second output end of the operational amplifier U5, the ground end of the operational amplifier U5 is grounded, the ground end of the operational amplifier U5 is also electrically connected with the second positive signal input end of the resistor R21 through the resistor R21, the capacitor C8 is connected with the two ends of the resistor R21 in parallel, the second positive signal input end of the operational amplifier U5 is also electrically connected with the output end of the voltage stabilizing circuit through the resistor R20, the first negative signal input end of the operational amplifier U5 is electrically connected with the first output end of the operational amplifier U5 through the resistor R19, the first output end of the operational amplifier U5 is grounded through the resistor R22 and the capacitor C12 in sequence, the common end of the resistor R22 and the capacitor C12 is electrically connected with the battery voltage signal input end of the main control circuit as the signal output end, the first output end of the operational amplifier U5 is also electrically connected with the middle connection point of the switching diode D4, the anode of the switching diode D4 is grounded, and the cathode of the switching diode D4 is electrically connected with the output end of the voltage stabilizing circuit.
7. A portable multi-function locomotive charger according to any one of claims 1-6, wherein: the external communication circuit comprises a resistor R3, a transceiver U2, a resistor R1, a capacitor C17, an ESD electrostatic diode D1 and a wire-to-board connector U4, wherein the RO end of the transceiver U2 is electrically connected with a first signal receiving and transmitting end of a main control circuit, the DI end of the transceiver U2 is electrically connected with a second signal receiving and transmitting end of the main control circuit, the RO end of the transceiver U2 is further electrically connected with an external switching power supply through the resistor R3, the shutdown control end of the transceiver U2 is electrically connected with the receiving and transmitting control end of the transceiver U2, the common end of the transceiver U2 is electrically connected with the external switching power supply, the power input end of the transceiver U2 is electrically connected with the external switching power supply through the capacitor C17, the power input end of the transceiver U2 is electrically connected with an A through the resistor R1, a pin B of the transceiver U2 is electrically connected with a pin B of the transceiver U2 through a resistor R2, the common end of the ESD electrostatic diode D is electrically connected with the transceiver U2, the common end of the ESD electrostatic diode D4 is electrically connected with the external switching power supply, and the common end of the ESD electrostatic diode D is electrically connected with the external switching power supply.
8. A portable multi-function locomotive charger according to any one of claims 1-6, wherein: the alarm circuit comprises a resistor R27, a triode Q4, a switch diode D5, a capacitor C18 and a buzzer, wherein one end of the resistor R27 is used as a signal input end to be electrically connected with an alarm signal output end of the main control circuit, the other end of the resistor R27 is electrically connected with a base electrode of the triode Q4, an emitting electrode of the triode Q4 is grounded, a collecting electrode of the triode Q4 is electrically connected with a middle connecting point of the switch diode D5, an anode of the switch diode D5 is electrically connected with a cathode of the switch diode D5 through the capacitor C18, the anode of the switch diode D5 is also grounded, a cathode of the switch diode D5 is electrically connected with an anode of the buzzer, a cathode of the switch diode D5 is also electrically connected with an external switch power supply, and a collecting electrode of the triode Q4 is also electrically connected with a cathode of the buzzer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321248719.8U CN219806716U (en) | 2023-05-23 | 2023-05-23 | Portable multifunctional locomotive charger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321248719.8U CN219806716U (en) | 2023-05-23 | 2023-05-23 | Portable multifunctional locomotive charger |
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| Publication Number | Publication Date |
|---|---|
| CN219806716U true CN219806716U (en) | 2023-10-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321248719.8U Active CN219806716U (en) | 2023-05-23 | 2023-05-23 | Portable multifunctional locomotive charger |
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| Country | Link |
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| CN (1) | CN219806716U (en) |
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- 2023-05-23 CN CN202321248719.8U patent/CN219806716U/en active Active
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