CN214590762U - Power supply control device for vehicle-mounted water purifying equipment - Google Patents

Abstract

The utility model relates to a can solve power takeoff power generation power supply and mains supply parallel operation simultaneously and arouse the vehicle-mounted water purification unit power control device for the technical problem of equipment damage, a serial communication port, be equipped with the automatic protector of rectifying phase of Q1, KM1 contactor, HL1 pilot lamp that link to each other in proper order among the power takeoff power supply control circuit, power takeoff power generation signal access Q1 is automatic rectify the input L1 of phase protector, L2, L3, the coil of KM1 contactor inserts Q1 respectively and rectifies the normal phase output NO1 of phase protector automatically; the utility power supply control circuit is equipped with Q2 automatic phase correction protector, KM2 contactor, KM3 contactor and HL2 pilot lamp, mains power inserts Q2 automatic phase correction protector's input end L1, L2, L3, KM2 contactor's coil inserts Q2 automatic phase correction protector's normal phase output NO1, KM3 contactor's coil inserts Q2 automatic phase correction protector's inverting output NO2, compare with prior art, have rational in infrastructure, significant advantages such as reliable operation.

Description

Power supply control device for vehicle-mounted water purifying equipment

The technical field is as follows:

the utility model relates to a power supply technical field, specific can solve power generation power supply and mains supply parallel operation simultaneously and arouse the power control device for vehicle-mounted water purification unit of the technical problem of equipment damage that says so.

Background art:

no matter what kind of water purification unit of usage, on-vehicle water purification unit electrical power generating system all belongs to the most basic subsystem in the on-vehicle integration. Without a reliable power supply system, the vehicle-mounted equipment cannot operate normally. With the development of science and technology, power takeoff and power generation equipment is more and more applied to national defense engineering, weapon systems, logistics equipment and other engineering.

In order to meet the requirements of heavy load or uninterrupted power supply, a power supply control device which has the advantages of high quality, stable voltage, correct phase sequence and flexible power supply mode is urgently needed, wherein the power take-off power generation and the mains supply run in parallel at the same time and are not in conflict with each other.

The invention content is as follows:

the utility model discloses shortcoming and not enough to exist among the prior art, the utility model provides a can realize the principle of "entering first as the owner", the power that enters the power supply system most is selected and starts another way power of cutting off simultaneously, all be equipped with on two way input loop simultaneously and correct the looks protector automatically, the voltage and the phase sequence etc. of real-time supervision power, if the voltage that appears three-phase input power is too high, the voltage is low excessively, lack the looks, reverse phase, this way power output of automatic cutout when faults such as three-phase voltage unbalance, if input phase sequence error, then can correct the on-vehicle power control device for water purification unit of phase sequence automatically.

The utility model discloses a following measure reaches:

a power supply control device for vehicle-mounted water purifying equipment is provided with a power take-off power supply control circuit and a mains supply power supply control circuit, and is characterized in that a Q1 automatic phase correction protector, a KM1 contactor and an HL1 indicator lamp which are sequentially connected are arranged in the power take-off power supply control circuit, a power take-off power generation electrical signal is connected into input ends L1, L2 and L3 of the Q1 automatic phase correction protector, and coils of the KM1 contactor are respectively connected into a normal phase output end NO1 of the Q1 automatic phase correction protector; the utility power supply control circuit is provided with a Q2 automatic phase correction protector, a KM2 contactor, a KM3 contactor and an HL2 indicator lamp, a utility power supply is connected to an input end L1, an input end L2 and an input end L3 of the Q2 automatic phase correction protector, a coil of the KM2 contactor is connected to a normal phase output end NO1 of the Q2 automatic phase correction protector, a coil of the KM3 contactor is connected to an inverted phase output end NO2 of the Q2 automatic phase correction protector, main contacts of the KM1 and KM2 contactors are connected with a main contact of the KM3 contactor in parallel and connected to a power end output bus, the HL1 indicator lamp is connected to output ends of KM1 and KM2 auxiliary normally open contacts, and the HL2 indicator lamp is connected to an output end of the KM3 auxiliary normally open contact.

The utility model discloses still be equipped with PV voltmeter, PHz frequency table, PV voltmeter, PHz frequency table insert real-time supervision three-phase power supply voltage and single-phase frequency on the output bus respectively.

The utility model discloses the main contacts of input L1, L2, L3, N and KM1 contactor of the automatic phase correction protector of well Q1 insert A, B, C, N end of the generator respectively; the coil input end of the KM1 contactor is connected with the NO1 output end of the Q1 automatic phase correction protector, the coil output end of the KM1 contactor is connected with the input end of the normally closed auxiliary contact of the KM2 contactor, the output end of the normally closed auxiliary contact of the KM2 contactor is connected with the input end of the normally closed auxiliary contact of the KM3 contactor, and the output end of the normally closed auxiliary contact of the KM3 contactor is connected with a zero line N; the input end of a normally open auxiliary contact of the KM1 contactor is connected with the A end of the generator, the output end of the normally open auxiliary contact of the KM1 contactor is connected with the input end of an HL1 indicator lamp, and the output end of the HL1 indicator lamp is connected with two lines N; the main contacts of input ends L1, L2, L3, N of a Q2 automatic phase correction protector in a mains supply, KM2 and KM3 contactors are respectively connected to L1, L2, L3 and N ends of the mains supply; the coil input end of the KM2 contactor is connected with the NO1 output end of the Q2 automatic phase correction protector, the coil input end of the KM3 contactor is connected with the NO2 output end of the Q2 automatic phase correction protector, the coil output ends of the KM2 and KM3 contactors are connected with the input end of a KM1 contactor normally-closed auxiliary contact, and the output end of the KM1 contactor normally-closed auxiliary contact is connected with a zero line N; the input ends of normally-open auxiliary contacts of the KM2 and KM3 contactors are connected to the L1 end of the generator, the output ends of the normally-open auxiliary contacts of the KM2 and KM3 contactors are connected to the input end of an HL2 indicator lamp, and the output end of the HL2 indicator lamp is connected to two lines N; PV voltmeter 11, 12, 13 and 14 are respectively connected to the U, V, W, N end of the system power supply, and PHz frequency meter 11 and 14 are respectively connected to the W, N end of the system power supply.

When the utility model is in operation, if the power-taking power-generating electric signal is firstly connected into the power control system, the NO1 contact of the Q1 automatic phase-correction protector is closed, the KM1 contactor and the HL1 indicator lamp are powered on, the power-taking power-generating power supply is connected, and the mains supply loop is cut off; if the mains supply is firstly connected into the power supply control system, 2 normally open contacts NO1 and NO2 of the Q2 automatic phase correction protector attract one of the contacts according to the state of the power supply to switch on different contactors, and in any state, two normally open contacts cannot be attracted simultaneously; when the phase sequence is correct, the NO1 contact of the Q2 automatic phase correction protector is closed, the KM2 contactor and the HL2 indicator lamp are powered on, the mains supply is connected, and a power taking and generating power supply loop is cut off; when the power is in the reverse phase, the NO2 contact is closed, the KM3 contactor and the HL2 indicator lamp are electrified, two phases of the output power are exchanged, and a positive-phase power supply is still output; when one power supply is selected and connected with a system power supply, a corresponding power-on indicator lamp HL1 is turned on from a power generation indicator lamp or an HL2 mains supply indicator lamp, and meanwhile, a PV voltmeter and PHz monitor the three-phase voltage and frequency of the system power supply circuit in real time.

The utility model provides a Q1 automatic phase correction protector, Q2 automatic phase correction protector can provide relay protection to the voltage of three-phase input power supply too high, the voltage is too low, lack the looks, reverse phase, three-phase voltage unbalance etc. in real time to can correct the phase sequence automatically, when the circuit protected is in running state or non-running state, if arbitrary one takes place the open-phase trouble, move immediately, lack the looks pilot lamp and light; when the three-phase alternating current phase sequence of the L1, the L2 and the L3 is normal, the NO1 contact immediately acts, the normal indicator light is on, when the phase sequence is wrong, the NO2 contact immediately acts, the reverse phase indicator light is on, and the phase sequence is automatically corrected through an external contactor; when the three-phase voltage is unbalanced, the three-phase voltage acts immediately, and the open-phase indicator light is on; when the voltage of the protected line is higher than a set value, the action is delayed for 6s, and the overvoltage indicator lamp is turned on; when the protected line voltage is lower than the set value, the action is delayed for 6s, and the undervoltage indicator lamp is turned on. The automatic phase correction protector is always in a protection state when the automatic phase correction protector is electrified under the fault states of phase loss, voltage unbalance, overvoltage and undervoltage lamps, two contacts of NO1 and NO2 are in an off state, and the two contactors are both off, so that the safety of a line is ensured.

Compared with the prior art, the utility model, have rational in infrastructure, reliable operation etc. and show the advantage.

Description of the drawings:

fig. 1 is a schematic block diagram of the present invention.

Fig. 2 is a schematic circuit diagram of embodiment 1 of the present invention.

Reference numerals: the system comprises a Q1 automatic phase correction protector 1, a KM1 contactor 2, an HL1 indicator lamp 3, a Q2 automatic phase correction protector 4, a KM2 contactor 5, a KM3 contactor 6, an HL2 indicator lamp 7, a PV voltmeter 8 and a PHz frequency meter 9.

The specific implementation mode is as follows:

the present invention will be further described with reference to the accompanying drawings and examples.

As shown in fig. 1, the utility model provides a power control device for on-vehicle water purification unit is equipped with power takeoff power supply control circuit, mains supply control circuit, be equipped with the automatic protector 1, KM1 contactor 2, HL1 pilot lamp 3 of rectifying of Q1 that link to each other in proper order in the power takeoff power supply control circuit, power takeoff electricity generation signal inserts the automatic input L1, L2, L3 of rectifying protector 1 of Q1, and the coil of KM1 contactor 2 inserts the normal phase output NO1 of the automatic phase rectification protector 1 of Q1 respectively; the utility power supply control circuit is provided with a Q2 automatic phase correction protector 4, a KM2 contactor 5, a KM3 contactor 6 and an HL2 indicator light 7, a mains power supply is connected to an input end L1, an input end L2 and an input end L3 of the Q2 automatic phase correction protector 4, a coil of the KM2 contactor 5 is connected to a normal phase output end NO1 of the Q2 automatic phase correction protector, a coil of the KM3 contactor 6 is connected to an opposite phase output end NO2 of the Q2 automatic phase correction protector 4, main contacts of the KM1 contactor 2, the KM2 contactor 5 and a main contact of the KM3 contactor 6 are connected in parallel to a power end output bus, the HL1 indicator light is connected to output ends of an auxiliary normally open contact of the KM1 contactor 2 and the KM2 contactor 5, and the HL2 indicator light 7 is connected to an output end of the auxiliary normally open contact of the KM3 contactor 6.

The utility model discloses still be equipped with PV voltmeter 8, PHz frequency table 9, PV voltmeter 8, PHz frequency table 9 insert real-time supervision three-phase power supply voltage and single-phase frequency on the output bus respectively.

The utility model discloses the main contacts of input L1, L2, L3, N and KM1 contactor of the automatic phase correction protector of well Q1 insert A, B, C, N end of the generator respectively; the coil input end of the KM1 contactor is connected with the NO1 output end of the Q1 automatic phase correction protector, the coil output end of the KM1 contactor is connected with the input end of the normally closed auxiliary contact of the KM2 contactor, the output end of the normally closed auxiliary contact of the KM2 contactor is connected with the input end of the normally closed auxiliary contact of the KM3 contactor, and the output end of the normally closed auxiliary contact of the KM3 contactor is connected with a zero line N; the input end of a normally open auxiliary contact of the KM1 contactor is connected with the A end of the generator, the output end of the normally open auxiliary contact of the KM1 contactor is connected with the input end of an HL1 indicator lamp, and the output end of the HL1 indicator lamp is connected with two lines N; the main contacts of input ends L1, L2, L3, N of a Q2 automatic phase correction protector in a mains supply, KM2 and KM3 contactors are respectively connected to L1, L2, L3 and N ends of the mains supply; the coil input end of the KM2 contactor is connected with the NO1 output end of the Q2 automatic phase correction protector, the coil input end of the KM3 contactor is connected with the NO2 output end of the Q2 automatic phase correction protector, the coil output ends of the KM2 and KM3 contactors are connected with the input end of a KM1 contactor normally-closed auxiliary contact, and the output end of the KM1 contactor normally-closed auxiliary contact is connected with a zero line N; the input ends of normally-open auxiliary contacts of the KM2 and KM3 contactors are connected to the L1 end of the generator, the output ends of the normally-open auxiliary contacts of the KM2 and KM3 contactors are connected to the input end of an HL2 indicator lamp, and the output end of the HL2 indicator lamp is connected to two lines N; PV voltmeter 11, 12, 13 and 14 are respectively connected to the U, V, W, N end of the system power supply, and PHz frequency meter 11 and 14 are respectively connected to the W, N end of the system power supply.

Example 1:

as shown in fig. 2, the present example provides a water purifying vehicle equipment power supply control device, which comprises a Q1 automatic phase correction protector 1, a KM1 contactor 2, an HL1 power generation indicator lamp 3, a Q2 automatic phase correction protector 4, a KM2 contactor 5, a KM3 contactor 6, an HL2 mains supply indicator lamp 7, a PV voltmeter 8 and a PHz frequency meter 9; the main contacts of input ends L1, L2, L3, N and KM1 contactors of a Q1 automatic phase correction protector in the power take-off power generation power supply are respectively connected to a A, B, C, N end of a generator; the coil input end of the KM1 contactor is connected with the NO1 output end of the Q1 automatic phase correction protector, the coil output end of the KM1 contactor is connected with the input end of the normally closed auxiliary contact of the KM2 contactor, the output end of the normally closed auxiliary contact of the KM2 contactor is connected with the input end of the normally closed auxiliary contact of the KM3 contactor, and the output end of the normally closed auxiliary contact of the KM3 contactor is connected with a zero line N; the input end of a normally open auxiliary contact of the KM1 contactor is connected with the A end of the generator, the output end of the normally open auxiliary contact of the KM1 contactor is connected with the input end of an HL1 indicator lamp, and the output end of the HL1 indicator lamp is connected with two lines N; the main contacts of input ends L1, L2, L3, N of a Q2 automatic phase correction protector in a mains supply, KM2 and KM3 contactors are respectively connected to L1, L2, L3 and N ends of the mains supply; the coil input end of the KM2 contactor is connected with the NO1 output end of the Q2 automatic phase correction protector, the coil input end of the KM3 contactor is connected with the NO2 output end of the Q2 automatic phase correction protector, the coil output ends of the KM2 and KM3 contactors are connected with the input end of a KM1 contactor normally-closed auxiliary contact, and the output end of the KM1 contactor normally-closed auxiliary contact is connected with a zero line N; the input ends of normally-open auxiliary contacts of the KM2 and KM3 contactors are connected to the L1 end of the generator, the output ends of the normally-open auxiliary contacts of the KM2 and KM3 contactors are connected to the input end of an HL2 indicator lamp, and the output end of the HL2 indicator lamp is connected to two lines N; PV voltmeter 11, 12, 13 and 14 are respectively connected to the U, V, W, N end of the system power supply, and PHz frequency meter 11 and 14 are respectively connected to the W, N end of the system power supply.

When the power supply works, if power take-off power generation is firstly connected into a power supply control system, the NO1 contact of the Q1 automatic phase correction protector is closed, the KM1 contactor and the HL1 indicator lamp are powered on, a power take-off power generation power supply is connected, and a mains supply loop is cut off; if the commercial power is firstly connected into the power supply control system, 2 normally open contacts NO1 and NO2 of the Q2 automatic phase correction protector attract one of the contacts according to the state of the power supply to connect different contactors, and in any state, the two normally open contacts cannot be attracted simultaneously. When the phase sequence is correct, the NO1 contact of the Q2 automatic phase correction protector is closed, the KM2 contactor and the HL2 indicator lamp are powered on, the mains supply is connected, and a power taking and generating power supply loop is cut off; when the NO2 contact is closed in the reverse phase, the KM3 contactor and the HL2 indicator lamp are electrified, two phases of output power are exchanged, and a positive-phase power supply is still output. When one power supply is selected and connected with a system power supply, a corresponding power-on indicator lamp HL1 is turned on from a power generation indicator lamp or an HL2 mains supply indicator lamp, and meanwhile, a PV voltmeter and PHz monitor the three-phase voltage and frequency of the system power supply circuit in real time; the automatic phase-rectifying protector Q1 and the automatic phase-rectifying protector Q2 can provide relay protection for overhigh voltage, overlow voltage, phase loss, reverse phase, three-phase voltage unbalance and the like of a three-phase input power supply in real time, and can automatically correct phase sequence. When the protected line is in an operating state or a non-operating state, any phase is subjected to phase failure, the phase failure acts immediately, and the phase failure indicator lamp is turned on; when the three-phase alternating current phase sequence of the L1, the L2 and the L3 is normal, the NO1 contact immediately acts, the normal indicator light is on, when the phase sequence is wrong, the NO2 contact immediately acts, the reverse phase indicator light is on, and the phase sequence is automatically corrected through an external contactor; when the three-phase voltage is unbalanced, the three-phase voltage acts immediately, and the open-phase indicator light is on; when the voltage of the protected line is higher than a set value, the action is delayed for 6s, and the overvoltage indicator lamp is turned on; when the protected line voltage is lower than the set value, the action is delayed for 6s, and the undervoltage indicator lamp is turned on. The automatic phase correction protector is always in a protection state when the automatic phase correction protector is electrified under the fault states of phase loss, voltage unbalance, overvoltage and undervoltage lamps, two contacts of NO1 and NO2 are in an off state, and the two contactors are both off, so that the safety of a line is ensured.

Compared with the prior art, the utility model, have rational in infrastructure, reliable operation etc. and show the advantage.

Claims (3)

1. A power supply control device for vehicle-mounted water purifying equipment is provided with a power take-off power supply control circuit and a mains supply power supply control circuit, and is characterized in that a Q1 automatic phase correction protector, a KM1 contactor and an HL1 indicator lamp which are sequentially connected are arranged in the power take-off power supply control circuit, a power take-off power generation electrical signal is connected into input ends L1, L2 and L3 of the Q1 automatic phase correction protector, and coils of the KM1 contactor are respectively connected into a normal phase output end NO1 of the Q1 automatic phase correction protector; the utility power supply control circuit is provided with a Q2 automatic phase correction protector, a KM2 contactor, a KM3 contactor and an HL2 indicator lamp, a utility power supply is connected to an input end L1, an input end L2 and an input end L3 of the Q2 automatic phase correction protector, a coil of the KM2 contactor is connected to a normal phase output end NO1 of the Q2 automatic phase correction protector, a coil of the KM3 contactor is connected to an opposite phase output end NO2 of the Q2 automatic phase correction protector, a main contact of the KM1 contactor, a main contact of the KM2 contactor and a main contact of the KM3 contactor are connected in parallel and connected to a power end output bus, the HL1 indicator lamp is connected to output ends of normally open contacts of the KM1 contactor and the KM2 contactor, and the HL2 indicator lamp is connected to an auxiliary contact output end of the KM3 contactor.

2. The power control device for the vehicle-mounted water purifying equipment according to claim 1, further comprising a PV voltmeter and a PHz frequency meter, wherein the PV voltmeter and the PHz frequency meter are respectively connected to the output bus to monitor the three-phase power voltage and the single-phase frequency in real time.

3. The power control device for the vehicle-mounted water purifying equipment as claimed in claim 1, wherein the main contacts of the input terminals L1, L2, L3, N and KM1 of the Q1 automatic phase correction protector are respectively connected to the A, B, C, N terminal of the generator; the coil input end of the KM1 contactor is connected with the NO1 output end of the Q1 automatic phase correction protector, the coil output end of the KM1 contactor is connected with the input end of the normally closed auxiliary contact of the KM2 contactor, the output end of the normally closed auxiliary contact of the KM2 contactor is connected with the input end of the normally closed auxiliary contact of the KM3 contactor, and the output end of the normally closed auxiliary contact of the KM3 contactor is connected with a zero line N; the input end of a normally open auxiliary contact of the KM1 contactor is connected with the A end of the generator, the output end of the normally open auxiliary contact of the KM1 contactor is connected with the input end of an HL1 indicator lamp, and the output end of the HL1 indicator lamp is connected with two lines N; the main contacts of input ends L1, L2, L3, N of a Q2 automatic phase correction protector in a mains supply, KM2 and KM3 contactors are respectively connected to L1, L2, L3 and N ends of the mains supply; the coil input end of the KM2 contactor is connected with the NO1 output end of the Q2 automatic phase correction protector, the coil input end of the KM3 contactor is connected with the NO2 output end of the Q2 automatic phase correction protector, the coil output ends of the KM2 and KM3 contactors are connected with the input end of a KM1 contactor normally-closed auxiliary contact, and the output end of the KM1 contactor normally-closed auxiliary contact is connected with a zero line N; the input ends of normally-open auxiliary contacts of the KM2 and KM3 contactors are connected to the L1 end of the generator, the output ends of the normally-open auxiliary contacts of the KM2 and KM3 contactors are connected to the input end of an HL2 indicator lamp, and the output end of the HL2 indicator lamp is connected to two lines N; PV voltmeter 11, 12, 13 and 14 are respectively connected to the U, V, W, N end of the system power supply, and PHz frequency meter 11 and 14 are respectively connected to the W, N end of the system power supply.

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