CN219535655U - Integrated mobile power supply - Google Patents
Integrated mobile power supply Download PDFInfo
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- CN219535655U CN219535655U CN202223319041.6U CN202223319041U CN219535655U CN 219535655 U CN219535655 U CN 219535655U CN 202223319041 U CN202223319041 U CN 202223319041U CN 219535655 U CN219535655 U CN 219535655U
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Abstract
The utility model discloses an integrated mobile power supply, which comprises: the shell is positioned at the direct current input end and the alternating current output end of the mobile power supply and is positioned in the energy storage battery, the charge and discharge control system and the inverter; the direct current input end of the mobile power supply is connected with an external direct current power supply; the positive electrode charging end and/or the negative electrode charging end of the energy storage battery are/is connected with the direct current input end of the mobile power supply through a charge-discharge control system; the positive electrode discharge end and/or the negative electrode discharge end of the energy storage battery are/is connected with the direct current input end of the inverter through a charge-discharge control system; the charge-discharge control system is used for controlling the on-off of the energy storage battery and the direct current input end of the mobile power supply and the direct current input end of the inverter. The utility model can output DC voltage of DC24V and AC voltage of AC220V, which can be used for low voltage illumination or matched voltage tool safely, and the leakage breaker can avoid electric leakage accident during AC voltage output, thus realizing safe power supply.
Description
Technical Field
The utility model relates to a power supply, in particular to an integrated mobile power supply.
Background
At present, general electric tools are used in the current engineering, and are introduced by commercial power. In the general electricity utilization process, a primary electric box is overhead led out from a transformer substation by a lead. The secondary electric box is led out from the primary electric box by a wire overhead and is distributed at each position. The third-stage electric box is overhead led out from the second-stage electric box by a lead and distributed at a required position. The switch box is overhead led out (can be connected by a plug) from the three-stage electric box by a lead. Electrical tools are typically used to remove (plug connection) from the switch box. Can meet the specification, realize three-level power supply, one machine and one gate and one leakage, and achieve the requirement of safe power utilization. The electric shock hazard is easily generated due to the fact that engineering electricity is used, work types are more, personnel are intensive, a one-machine one-brake function is achieved, the two-stage electric box is led out, the field overhead conductors are more, the electric shock hazard is easily generated due to the fact that the field overhead conductors are easy to pull, rub and squeeze, and a common electric tool cannot be disconnected from a power supply. And engineering processes are complex, the moving range is large in the using process, the power supply is required to be pulled back and forth, the power supply is moved, the wires are not enough, and the power supply is required to be changed again by a professional, so that the moving is very inconvenient.
Disclosure of Invention
The utility model provides an integrated mobile power supply for solving the technical problems in the prior art.
The utility model adopts the technical proposal for solving the technical problems in the prior art that: an integrated mobile power supply comprising: the shell is positioned at the direct current input end and the alternating current output end of the mobile power supply and is positioned in the energy storage battery, the charge and discharge control system and the inverter; the direct current input end of the mobile power supply is connected with an external direct current power supply; the positive electrode charging end and/or the negative electrode charging end of the energy storage battery are/is connected with the direct current input end of the mobile power supply through a charge-discharge control system; the positive electrode discharge end and/or the negative electrode discharge end of the energy storage battery are/is connected with the direct current input end of the inverter through a charge-discharge control system; the charge-discharge control system is used for controlling the on-off of the energy storage battery and the direct current input end of the mobile power supply and the direct current input end of the inverter.
Further, the charge-discharge control system comprises a change-over switch, a charge-discharge controller, a first relay and a second relay; the charging end of the energy storage battery is connected with the discharging end of the energy storage battery in parallel;
the charge-discharge controller is used for detecting the input and output voltage, current and power of the energy storage battery and calculating to obtain the electric quantity of the energy storage battery, and outputting a control signal to enable the normally open contact of the first relay to be disconnected when the charge-discharge controller detects that the input and output voltage, current or power value of the energy storage battery is higher or lower than a corresponding set value or when the electric quantity value of the energy storage battery is higher or lower than the corresponding set value;
the change-over switch comprises an output end and at least two input ends, and the output end is disconnected with the other input ends when connected with one of the input ends; one of the input ends of the change-over switch is not provided with signal input, and the other input end is connected with the direct current input end of the mobile power supply; the charge-discharge controller comprises two voltage input ends, namely an anode voltage input end and a cathode voltage input end, and at least one voltage input end of the charge-discharge controller is connected with the discharge end of the corresponding energy storage battery through a change-over switch;
one group of normally open contacts of the first relay is set to be K1 respectively no1 、K1 no2 The method comprises the steps of carrying out a first treatment on the surface of the One group of normally open contacts of the second relay is respectively K2 no1 、K2 no2 The method comprises the steps of carrying out a first treatment on the surface of the One group of normally closed contacts of the second relay is K2 respectively nc1 、K2 nc2 ；
Wherein, K2 no1 The power supply is connected with the direct current input end of the mobile power supply; k2 no2 Respectively with K1 no1 K2 nc1 Are connected; k1 no2 The output end of the switching switch is connected with the output end of the switching switch; the inverter comprises two DC input ends, namely a positive input end and a negative input end, wherein one DC input end of the inverter is connected with K2 nc2 Connecting; the other direct current input end of the inverter is connected with the direct current input end of the mobile power supply; and K2 nc2 Polarity of the DC voltage input of the connected inverter, AND K2 no1 Connected mobile power supply direct currentThe polarity of the inputs is the same.
Further, the power inverter also comprises a first breaker, wherein two direct current input ends of the inverter are respectively corresponding to K2 through the first breaker nc2 The direct current input end of the mobile power supply is connected.
Further, the mobile power supply direct current input end comprises a charging power supply input end and a working power supply input end; the positive electrode of the charging power supply input end is connected with the positive electrode of the working power supply input end.
Further, the change-over switch comprises three input ends, wherein the three input ends are respectively K in1 、K in2 、K in3 The method comprises the steps of carrying out a first treatment on the surface of the Wherein K is in1 No signal input, K in2 Is connected with the positive electrode or the negative electrode of the input end of the working power supply, K in3 The positive electrode or the negative electrode is connected with the charging end of the energy storage battery; and K in2 The polarity of the input end of the working power supply connected with the power supply, and the sum K in3 The polarity of the charging ends of the connected energy storage batteries is the same.
Further, the charge-discharge control system also comprises a current transformer; the current transformer is used for detecting the current of the discharge loop of the energy storage battery and outputting a current signal to the charge-discharge controller.
Further, the charge-discharge control system further comprises a temperature sensor, wherein the temperature sensor is used for detecting the temperature of the energy storage battery and outputting a signal to the charge-discharge controller; when the detected temperature exceeds a set value, the charge-discharge controller outputs a control signal to the control signal input end of the first relay, so that the normally open contact of the first relay is disconnected.
Further, the direct current output end of the mobile power supply is connected in parallel with the direct current input end of the inverter.
Further, the power supply further comprises a second circuit breaker and a third circuit breaker, wherein the third circuit breaker is an electric leakage circuit breaker, and the alternating current output end of the inverter is connected with the alternating current output end of the mobile power supply through the second circuit breaker and the third circuit breaker in sequence.
Further, the direct current input end and/or the direct current output end of the mobile power supply are plug-in type ports.
The utility model has the advantages and positive effects that:
the utility model is an integrated power supply, can move into the use range at any time and any place, and is very convenient. The multi-stage switch box, wires and the like are omitted, a large number of temporary electric equipment is omitted, a plurality of labor hours for laying, checking, maintaining temporary electric equipment and the like are omitted, and the temporary electric cost is reduced.
The utility model has convenient movement and safe use. The utility model is provided with a charge-discharge control system, and when the internal electric quantity is insufficient, the charge-discharge control system can be switched to external power supply.
The utility model can output DC voltage of DC24V and the like, can be safely used by low-voltage illumination or matched voltage tools, can convert the DC voltage into AC voltage of AC220V and the like through an inverter and then output the AC voltage, and can realize safe power supply through facilities of an earth leakage breaker and the like, thereby solving the safety problem.
In order to be safe in use, the utility model can also specifically have the following protection functions:
1. an energy storage battery has an over-high charging and discharging temperature protection function;
2. the charge voltage is too high, and the discharge voltage is too low;
3. a charge and discharge current overhigh protection function;
4. a charge and discharge power protection function;
5. leakage protection function
Drawings
Fig. 1 is an electrical schematic of the present utility model.
In the figure: K. a change-over switch; KA1, a first relay; KA2, second relay; BT, energy storage battery; TS, temperature sensor; TA, current transformer; QF1, first circuit breaker; QF2, second circuit breaker; QF3, third circuit breaker; CC. A charge-discharge controller; INV, inverter; l, a power indicator lamp; k1 no1 、K1 no2 A set of normally open contacts for the first relay; k2 no1 、K2 no2 A set of normally open contacts for the second relay; k2 nc1 、K2 nc2 Normally closed contacts for a second relay；K in1 、K in2 、K in3 Three inputs of the switch.
Detailed Description
For a further understanding of the utility model, its features and advantages, reference is now made to the following examples, which are illustrated in the accompanying drawings in which:
referring to fig. 1, an integrated mobile power supply includes: the shell is positioned at the direct current input end and the alternating current output end of the mobile power supply on the shell, and the energy storage battery BT, the charge and discharge control system and the inverter INV are positioned in the shell; the direct current input end of the mobile power supply is connected with an external direct current power supply; the positive charging end and/or the negative charging end of the energy storage battery BT are/is connected with the direct current input end of the mobile power supply through a charge-discharge control system; the positive electrode discharge end and/or the negative electrode discharge end of the energy storage battery BT are/is connected with the direct current input end of the inverter INV through a charge-discharge control system; the charge-discharge control system is used for controlling the on-off of the energy storage battery BT and the direct current input end of the mobile power supply and the direct current input end of the inverter INV.
Preferably, the charge and discharge control system may include a switching switch K, a charge and discharge controller CC, a first relay KA1 and a second relay KA2; the charging end of the energy storage battery BT is connected with the discharging end of the energy storage battery BT in parallel;
the charge-discharge controller CC may be configured to detect the voltage, current, and power input and output by the energy storage battery BT, calculate an electric quantity of the energy storage battery, and output a control signal to open the normally open contact of the first relay KA1 when it detects that the voltage, current, or power input and output by the energy storage battery BT is higher or lower than a corresponding set value, or when it calculates an electric quantity value of the energy storage battery BT is higher or lower than a corresponding set value.
The charge-discharge controller can also detect the temperature of the energy storage battery BT through the temperature sensor, and when the temperature of the energy storage battery BT is detected to be higher than a set value; the control signal can be output to the first relay to enable the normally open contact of the first relay to be disconnected.
The charge/discharge controller CC may output a control signal to cut off the power supplied to the coil of the first relay KA1, and open the normally open contact of the first relay KA1.
The charge-discharge controller CC has the following functions:
switch control function:
the equipment is controlled to be started and shut down by OK key, so that pins 3 and 4 output or break DC24V voltage to control the action of relay KA1.
Display function:
the following data and states may be displayed: the integrated inter-operation value, the actual measured voltage value, the actual measured current value (+charge current value; -discharge current value), the actual measured power value, the battery remaining capacity percentage progress bar, the battery remaining capacity percentage, the measured temperature value, the output state, and the like.
The protection function:
the protection function is as follows: the energy storage battery charging and discharging overheat protection function is used for prompting overheat and disconnecting the relay KA1 when the temperature of the energy storage battery is detected to exceed the set temperature; the energy storage battery charging overvoltage protection function prompts overvoltage and turns off the relay KA1 when detecting that the voltage of the output end of the energy storage battery BT exceeds the set voltage; the discharging undervoltage protection function of the energy storage battery prompts undervoltage and turns off the relay KA1 when the voltage of the output end of the energy storage battery BT is detected to be lower than the set voltage; the energy storage battery charge and discharge overcurrent protection function, when detecting that the current at the output end of the energy storage battery BT exceeds the set current, prompting overcurrent and disconnecting the relay KA1; and the energy storage battery charging and discharging power protection function prompts the over-power and opens the relay KA1 when detecting that the BT output power of the energy storage battery exceeds the set power.
The change-over switch K can comprise an output end and at least two input ends, wherein the output end is disconnected with other input ends when connected with one of the input ends; one of the input ends of the change-over switch K can be input without a signal, and the other input end of the change-over switch K can be connected with the direct current input end of the mobile power supply; the charge-discharge controller CC comprises two voltage input ends, namely an anode voltage input end and a cathode voltage input end, and at least one voltage input end of the charge-discharge controller CC can be connected with the discharge end of the corresponding energy storage battery BT through a change-over switch K;
one of the first relays KA1 can be arrangedThe normally open contacts are respectively K1 no1 、K1 no2 The method comprises the steps of carrying out a first treatment on the surface of the One group of normally open contacts capable of being provided with a second relay KA2 is respectively K2 no1 、K2 no2 The method comprises the steps of carrying out a first treatment on the surface of the One group of normally closed contacts of the second relay KA2 is K2 respectively nc1 、K2 nc2 ；
Wherein, K2 no1 The power supply can be connected with a direct current input end of the mobile power supply; k2 no2 Can be respectively combined with K1 no1 K2 nc1 Are connected; k1 no2 Can be connected with the output end of the change-over switch K; the inverter INV comprises two DC input ends, namely a positive input end and a negative input end, and one of the DC input ends of the inverter INV can be connected with K2 nc2 Connecting; the other direct current input end of the inverter INV can be connected with the direct current input end of the mobile power supply; and K2 nc2 Polarity-sum K2 of DC voltage input end of connected inverter INV no1 The polarity of the direct current input ends of the connected mobile power supplies is the same.
Preferably, the inverter also comprises a first breaker QF1, and two direct current input ends of the inverter INV can respectively correspond to K2 through the first breaker QF1 nc2 The direct current input end of the mobile power supply is connected.
Preferably, the mobile power supply direct current input terminal can comprise a charging power supply input terminal and a working power supply input terminal; the positive electrode of the charging power supply input end can be connected with the positive electrode of the working power supply input end.
Preferably, the switch K may comprise three inputs, each of which may be K in1 、K in2 、K in3 The method comprises the steps of carrying out a first treatment on the surface of the Wherein K is in1 Can be input without signal, K in2 Can be connected with the positive electrode or the negative electrode of the input end of the working power supply, K in3 Can be connected with the positive electrode or the negative electrode of the charging end of the energy storage battery BT; and K in2 The polarity of the input end of the working power supply connected with the power supply, and the sum K in3 The polarity of the charging terminals of the connected energy storage batteries BT is the same.
Preferably, the charge and discharge control system may further include a current transformer TA; the current transformer TA can be used for detecting the current of the discharge loop of the energy storage battery BT, and outputs a current signal to the charge-discharge controller CC.
Preferably, the charge and discharge control system may further include a temperature sensor TS, which may be used to detect the temperature of the energy storage battery BT, and output a signal to the charge and discharge controller CC; when the detected temperature exceeds the set value, the charge/discharge controller CC may output a control signal to the control signal input terminal of the first relay KA1 to open the normally open contact of the first relay KA1.
Preferably, the inverter may further comprise a mobile power supply direct current output end, and the mobile power supply direct current output end may be connected in parallel with the direct current input end of the inverter INV.
Preferably, the power supply further comprises a second breaker QF2 and a third breaker QF3, wherein the third breaker QF3 can be an electric leakage breaker, and the alternating current output end of the inverter INV can be connected with the alternating current output end of the mobile power supply through the second breaker QF2 and the third breaker QF3 in sequence.
Preferably, the mobile power supply direct current input end and/or the mobile power supply direct current output end can be plug-in type ports.
The construction and operation of the present utility model will be further described with reference to a preferred embodiment thereof:
an integrated mobile power supply comprising: the shell is positioned at the direct current input end, the alternating current output end and the direct current output end of the mobile power supply of the shell, and the energy storage battery BT, the charge and discharge control system and the inverter INV are positioned in the shell; the direct current input end of the mobile power supply is connected with an external direct current power supply; the negative electrode charging end of the energy storage battery BT is connected with the negative electrode of the direct current input end of the mobile power supply through a charge-discharge control system; the negative electrode discharging end of the energy storage battery BT is connected with the negative electrode of the direct current input end of the inverter INV through a charge-discharge control system; the positive charging end and the positive discharging end of the energy storage battery BT are connected in parallel to form one end; the negative electrode charging end and the negative electrode discharging end of the energy storage battery BT are connected in parallel to form one end; the charge-discharge control system comprises a switch K, a charge-discharge controller CC, a first relay KA1 and a second relay KA2; the mobile power supply direct current input end comprises a charging power supply input end and a working power supply input end; the positive electrode of the charging power supply input end is connected with the positive electrode of the working power supply input end. The alternating current output end of the mobile power supply is also connected with a power supply indicator lamp L in parallel. The power indicator lamp L is used for displaying that the alternating current output end of the mobile power supply is powered on, and prompting an operator to pay attention to the safety of power consumption.
The charge-discharge controller CC can adopt VAC9610S multifunctional instrument produced by Zhengzhou Qing blue electronic technology limited company, also called as a Hall coulomb power thermometer voltage-current capacity meter (hereinafter referred to as VAC 9610S), the VAC9610S is a multifunctional instrument, can display various physical parameters such as voltage, current, power, capacity, energy, temperature, running time and the like in real time, and the current collection mode is to collect current through a non-contact Hall sensor, so that the safety, stability and wiring are convenient, and the over-power, over-voltage, under-voltage, over-current protection and temperature control functions can be realized through a reserved relay interface. And the instrument adopts 1.8 inch color liquid crystal as a display, so that the display data is more comprehensive and clear, and the instrument is easy to observe. The meter is very suitable for application occasions such as needing to monitor the voltage and the current output by the energy storage battery BT and charging and discharging the battery.
The VAC9610S includes two voltage inputs, an anode voltage input and a cathode voltage input, respectively, pin 1 is the anode voltage input, and pin 2 is the cathode voltage input; the pin 1 is connected with the positive electrode discharge end of the energy storage battery BT, the pin 2 is connected with the negative electrode discharge end of the energy storage battery BT, the pins 3 and 4 output direct current signals and are connected with the control signal input end of the first relay KA1, and the pin 5 is connected with the temperature sensor TS.
The VAC9610S may be configured to detect the voltage, current, and power input and output by the energy storage battery BT, calculate an electric quantity of the energy storage battery, and output a control signal to open the normally open contact of the first relay KA1 when it detects that the voltage, current, or power input and output by the energy storage battery BT is higher or lower than a corresponding set value, or when it calculates an electric quantity value of the energy storage battery BT is higher or lower than a corresponding set value.
The VAC9610S may also detect the temperature of the energy storage battery BT through a temperature sensor, when it detects that the temperature of the energy storage battery BT is higher than a set value; the control signal can be output to the first relay to enable the normally open contact of the first relay to be disconnected.
The VAC9610S may output a control signal to cut off the power supply to the coil of the first relay KA1, so that the normally open contact of the first relay KA1 is opened; the control signal input of the second relay KA2 may be connected with the charging power supply input.
The change-over switch K comprises an output end and three input ends, and the output end is disconnected with the other input ends when connected with one of the input ends; let three input ends be K in1 、K in2 、K in3 The method comprises the steps of carrying out a first treatment on the surface of the Wherein K is in1 No signal input, K in2 Is connected with the negative pole of the input end of the working power supply, K in3 The negative electrode is connected with the charging end of the energy storage battery BT; and K in2 The polarity of the input end of the working power supply connected with the power supply, and the sum K in3 The charging ends of the connected energy storage batteries BT are the same in polarity and are all negative electrodes.
One group of normally open contacts of the first relay KA1 can be set to be K1 respectively no1 、K1 no2 The method comprises the steps of carrying out a first treatment on the surface of the One group of normally open contacts capable of being provided with a second relay KA2 is respectively K2 no1 、K2 no2 The method comprises the steps of carrying out a first treatment on the surface of the One group of normally closed contacts of the second relay KA2 is K2 respectively nc1 、K2 nc2 ；
Wherein, K2 no1 The negative electrode is connected with the direct current input end of the mobile power supply; k2 no2 Can be respectively combined with K1 no1 K2 nc1 Are connected; k1 no2 Can be connected with the output end of the change-over switch K; the inverter INV comprises two DC input ends, namely a positive input end and a negative input end, and the negative input end of the inverter INV is connected with K2 nc2 Connecting; the positive electrode input end of the inverter INV is connected with the positive electrode of the direct current voltage input end; and K2 nc2 Polarity-sum K2 of DC voltage input end of connected inverter INV no1 The polarities of the direct current input ends of the connected mobile power supplies are the same, and the direct current input ends are all negative electrodes.
The direct current can be 12V, 24V, 36V, etc., and the alternating current can be 110V, 220V, etc.
The following describes the workflow and principle of the present utility model with reference to fig. 1, using 24V dc and 220V ac:
device charging mode:
the charging power supply input end is connected with an external power supply, the working power supply input end is not connected with the external power supply, and the output end of the switch K is connected with the input end K in3 The control signal input end of the second relay KA2 is conducted, the direct-current voltage is input, the coil of the second relay KA2 is electrified, and the normally open contact K2 is formed no1 、K2 no2 Conducting, its normally closed contact K2 nc1 、K2 nc2 Disconnecting; by key control of the VAC9610S, the pins 3 and 4 of the VAC9610S output direct current voltage 24V to the control signal input end of the first relay KA1, the coil of the first relay KA1 is electrified, and the normally open contact K1 is opened no1 、K1 no2 Conducting.
The positive electrode input end of the charging power supply input end is connected with the positive electrode charging end of the energy storage battery BT, and the negative electrode input end of the charging power supply input end sequentially passes through the normally open contact K2 of the second relay KA2 n01 、K2 no2 Normally open contact K1 of first relay KA1 no1 、K1 no2 And the change-over switch K is connected with the charging end of the negative electrode of the energy storage battery BT.
Working mode of using energy storage battery BT power to externally supply direct current 24V:
the charging power supply input end is not connected with an external power supply, the working power supply input end is not connected with the external power supply, and the output end of the switch K is connected with the input end K in3 The control signal input end of the second relay KA2 is conducted, no voltage is input, the coil of the second relay KA2 is powered off, and the normally open contact K2 of the second relay KA2 is opened no1 、K2 no2 Open, its normally closed contact K2 nc1 、K2 nc2 Conducting; by key control of the VAC9610S, pins 3 and 4 of the VAC9610S output direct-current voltage DC24V to the control signal input end of the first relay KA1, the coil of the first relay KA1 is electrified, and the normally open contact K1 is opened no1 、K1 no2 On, the first breaker QF1 is closed.
The positive electrode discharge end of the energy storage battery BT is connected with the positive electrode input end of the inverter INV and the positive electrode output end of the direct current DC24V through the first breaker QF1, and the negative electrode discharge end of the energy storage battery BT sequentially passes through the change-over switch K and the normally open point K1 of the first relay KA1 no2 、K1 no1 Normally closed point K2 of second relay KA2 nc1 、K2 nc2 And the first breaker QF1 is connected with the negative electrode input end of the inverter INV and the negative electrode output end of the direct current DC 24V.
Working mode of using energy storage battery BT power to externally supply direct current 24V and alternating current 220V:
the charging power supply input end is not connected with an external power supply, the working power supply input end is not connected with the external power supply, and the output end of the switch K is connected with K in3 The control signal input end of the second relay KA2 is conducted, no voltage is input, the coil of the second relay KA2 is powered off, and the normally open contact K2 of the second relay KA2 is opened no1 、K2 no2 Open, its normally closed contact K2 nc1 、K2 nc2 Conducting; by key control of the VAC9610S, pins 3 and 4 of the VAC9610S output direct current DC24V to the control signal input end of the first relay KA1, the coil of the first relay KA1 is electrified, and the normally open contact K1 is formed no1 、K1 no2 On, the first breaker QF1 is closed, the second breaker QF2 is closed, and the third leakage breaker QF3 is closed.
The positive electrode discharge end of the energy storage battery BT is connected with the positive electrode input end of the inverter INV and the positive electrode output end of the direct current DC24V through QF1, and the negative electrode discharge end of the energy storage battery BT sequentially passes through the change-over switch K and the normally open contact K1 of the first relay KA1 n02 、K1 no1 Normally closed point K2 of second relay KA2 nc1 、K2 nc2 The first breaker QF1 is connected with the negative input end of the inverter INV and the negative output end of the direct current DC24V, and then the inverter INV outputs AC220V which sequentially passes through the second breaker QF2 and the third leakage breaker QF3 to be connected with the AC220V alternating current output end.
An external power supply is used for externally supplying 24V direct current working mode:
the input end of the working power supply is connected with an external power supply, the input end of the charging power supply is not connected with the external power supply, and the BT power supply of the storage battery is switched by a switch K in3 Disconnecting from the line, switching the output of the switch K from K in2 The control signal input end of the second relay KA2 is conducted, no voltage is input, the coil of the second relay KA2 is powered off, and the normally open point K2 of the second relay KA2 is a normally open point no1 、K2 no2 Open, its normally closed point K2 nc1 、K2 nc2 Conduction through keys of VAC9610SControl, make VAC9610S pin 3, 4 output DC24V to the control signal input terminal of first relay KA1, first relay KA1 coil is energized, its normally open point K1 no1 、K1 no2 On, the first breaker QF1 is closed.
The working power supply input end is connected with an external power supply, the working power supply positive electrode input end is connected with the positive electrode input end of the inverter INV and the direct current DC24V positive electrode output end through QF1, and the working power supply negative electrode input end sequentially passes through the switch K and the normally open point K1 of the first relay KA1 no2 、K1 no1 Normally closed point K2 of second relay KA2 nc1 、K2 nc2 And the first breaker QF1 is connected with the negative electrode input end of the inverter INV and the negative electrode output end of the direct current DC 24V.
An external power supply is used for externally supplying 24V direct current and 220V alternating current:
the input end of the working power supply is connected with an external power supply, the input end of the charging power supply is not connected with the external power supply, and the BT power supply of the storage battery is switched by a switch K in3 Disconnecting from the line, switching the output of the switch K from K in2 The control signal input end of the second relay KA2 is conducted, no voltage is input, the coil of the second relay KA2 is powered off, and the normally open point K2 of the second relay KA2 is a normally open point no1 、K2 no2 Open, its normally closed point K2 nc1 、K2 nc2 Conduction is carried out, pins 3 and 4 of VAC9610S output direct current DC24V to a control signal input end of a first relay KA1 under the key control of VAC9610S, a coil of the first relay KA1 is electrified, and a normally open point K1 is formed no1 、K1 no2 On, the first breaker QF1 is closed, the second breaker QF2 is closed, and the third leakage breaker QF3 is closed.
The working power supply input end is connected with an external power supply, the working power supply positive electrode input end is connected with the positive electrode input end of the inverter INV and the direct current DC24V positive electrode output end through QF1, and the working power supply negative electrode input end sequentially passes through the switch K and the normally open point K1 of the first relay KA1 no2 、K1 no1 Normally closed point K2 of second relay KA2 nc1 、K2 nc2 The first breaker QF1 is connected with the negative input end of the inverter INV and the negative output end of the direct current DC24V, and then the inverter INV outputs AC2The 20V is connected with an AC220V alternating current output end through a second breaker QF2 and a third leakage breaker QF3 in sequence.
The above-described embodiments are only for illustrating the technical spirit and features of the present utility model, and it is intended to enable those skilled in the art to understand the content of the present utility model and to implement it accordingly, and the scope of the present utility model is not limited to the embodiments, i.e. equivalent changes or modifications to the spirit of the present utility model are still within the scope of the present utility model.
Claims (9)
1. An integrated mobile power supply, comprising: the shell is positioned at the direct current input end and the alternating current output end of the mobile power supply and is positioned in the energy storage battery, the charge and discharge control system and the inverter; the direct current input end of the mobile power supply is connected with an external direct current power supply; the positive electrode charging end and/or the negative electrode charging end of the energy storage battery are/is connected with the direct current input end of the mobile power supply through a charge-discharge control system; the positive electrode discharge end and/or the negative electrode discharge end of the energy storage battery are/is connected with the direct current input end of the inverter through a charge-discharge control system; the charge-discharge control system is used for controlling the on-off of the energy storage battery and the direct current input end of the mobile power supply and the direct current input end of the inverter;
the charge-discharge control system comprises a change-over switch, a charge-discharge controller, a first relay and a second relay; the charging end of the energy storage battery is connected with the discharging end of the energy storage battery in parallel;
the charge-discharge controller is used for detecting the voltage and the current discharged and output by the energy storage battery and calculating the electric quantity of the energy storage battery; when the calculated electric quantity value is lower than a set value, the electric quantity value outputs a control signal to a control signal input end of the first relay, so that a normally open contact of the first relay is conducted; the control signal input end of the second relay is connected with the direct current input end of the mobile power supply;
the charge-discharge controller is used for detecting the input and output voltage, current and power of the energy storage battery and calculating to obtain the electric quantity of the energy storage battery, and outputting a control signal to enable the normally open contact of the first relay to be disconnected when the charge-discharge controller detects that the input and output voltage, current or power value of the energy storage battery is higher or lower than a corresponding set value or when the electric quantity value of the energy storage battery is higher or lower than the corresponding set value;
the change-over switch comprises an output end and at least two input ends, and the output end is disconnected with the other input ends when connected with one of the input ends; one of the input ends of the change-over switch is not provided with signal input, and the other input end is connected with the direct current input end of the mobile power supply; the charge-discharge controller comprises two voltage input ends, namely an anode voltage input end and a cathode voltage input end, and at least one voltage input end of the charge-discharge controller is connected with the discharge end of the corresponding energy storage battery through a change-over switch;
one group of normally open contacts of the first relay is set to be K1 respectively no1 、K1 no2 The method comprises the steps of carrying out a first treatment on the surface of the One group of normally open contacts of the second relay is respectively K2 no1 、K2 no2 The method comprises the steps of carrying out a first treatment on the surface of the One group of normally closed contacts of the second relay is K2 respectively nc1 、K2 nc2 ；
Wherein, K2 no1 The power supply is connected with the direct current input end of the mobile power supply; k2 no2 Respectively with K1 no1 K2 nc1 Are connected; k1 no2 The output end of the switching switch is connected with the output end of the switching switch; the inverter comprises two DC input ends, namely a positive input end and a negative input end, wherein one DC input end of the inverter is connected with K2 nc2 Connecting; the other direct current input end of the inverter is connected with the direct current input end of the mobile power supply; and K2 nc2 Polarity of the DC voltage input of the connected inverter, AND K2 no1 The polarity of the direct current input ends of the connected mobile power supplies is the same.
2. The integrated mobile power supply according to claim 1, further comprising a first circuit breaker, wherein the two dc input terminals of the inverter are respectively corresponding to K2 through the first circuit breaker nc2 The direct current input end of the mobile power supply is connected.
3. The integrated mobile power supply of claim 1, wherein the mobile power supply dc input comprises a charging power supply input and a working power supply input; the positive electrode of the charging power supply input end is connected with the positive electrode of the working power supply input end.
4. The integrated portable power source of claim 3 wherein the switch comprises three inputs, K in1 、K in2 、K in3 The method comprises the steps of carrying out a first treatment on the surface of the Wherein K is in1 No signal input, K in2 Is connected with the positive electrode or the negative electrode of the input end of the working power supply, K in3 The positive electrode or the negative electrode is connected with the charging end of the energy storage battery; and K in2 The polarity of the input end of the working power supply connected with the power supply, and the sum K in3 The polarity of the charging ends of the connected energy storage batteries is the same.
5. The integrated mobile power supply of claim 1, wherein the charge-discharge control system further comprises a current transformer; the current transformer is used for detecting the current of the discharge loop of the energy storage battery and outputting a current signal to the charge-discharge controller.
6. The integrated mobile power supply according to claim 1, wherein the charge-discharge control system further comprises a temperature sensor for detecting the temperature of the energy storage battery, and outputting a signal to the charge-discharge controller; when the detected temperature exceeds a set value, the charge-discharge controller outputs a control signal to the control signal input end of the first relay, so that the normally open contact of the first relay is disconnected.
7. The integrated portable power source of claim 1, further comprising a portable power source dc output connected in parallel with the dc input of the inverter.
8. The integrated mobile power supply of claim 1, further comprising a second circuit breaker and a third circuit breaker, wherein the third circuit breaker is an earth leakage circuit breaker, and the ac output end of the inverter is connected with the ac output end of the mobile power supply sequentially through the second circuit breaker and the third circuit breaker.
9. The integrated portable power source of claim 1, wherein the portable power source dc input and/or the portable power source dc output is a plug-in type port.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223319041.6U CN219535655U (en) | 2022-12-09 | 2022-12-09 | Integrated mobile power supply |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223319041.6U CN219535655U (en) | 2022-12-09 | 2022-12-09 | Integrated mobile power supply |
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| CN219535655U true CN219535655U (en) | 2023-08-15 |
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