CN221351625U - Electrolysis unit life-span detection circuit - Google Patents
Electrolysis unit life-span detection circuit Download PDFInfo
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- CN221351625U CN221351625U CN202322936108.9U CN202322936108U CN221351625U CN 221351625 U CN221351625 U CN 221351625U CN 202322936108 U CN202322936108 U CN 202322936108U CN 221351625 U CN221351625 U CN 221351625U
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- 238000005868 electrolysis reaction Methods 0.000 title claims abstract description 132
- 238000001514 detection method Methods 0.000 title claims abstract description 18
- 238000005070 sampling Methods 0.000 claims abstract description 102
- 238000000034 method Methods 0.000 claims abstract description 8
- 238000004804 winding Methods 0.000 claims description 33
- 239000003990 capacitor Substances 0.000 claims description 15
- 230000000087 stabilizing effect Effects 0.000 claims description 15
- 238000001914 filtration Methods 0.000 claims description 8
- 230000005518 electrochemistry Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 229910052801 chlorine Inorganic materials 0.000 description 3
- 239000000460 chlorine Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 101150080085 SEG1 gene Proteins 0.000 description 2
- 101100421134 Schizosaccharomyces pombe (strain 972 / ATCC 24843) sle1 gene Proteins 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 230000009182 swimming Effects 0.000 description 2
- 101100202858 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) SEG2 gene Proteins 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012267 brine Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Abstract
The application relates to the technical field of electrochemistry, in particular to a life detection circuit of an electrolysis unit, which comprises a power supply module, a sampling module and a control module, wherein the power supply module is used for providing level signals for the sampling module, the control module and the electrolysis unit, the sampling module is used for receiving electrolysis signals output by the electrolysis unit in the electrolysis process, amplifying the electrolysis signals and outputting the electrolysis signals to the control module, and the control module is used for determining the resistance of the electrolysis unit according to the sampling signals and giving an alarm when the rise of the resistance of the electrolysis unit compared with the resistance of the original electrolysis unit reaches 50 percent.
Description
Technical Field
The application relates to the technical field of electrochemistry, in particular to a service life detection circuit of an electrolysis unit.
Background
At present, the electrolysis unit in the common salt-chlorine machine is used for purifying swimming pool water in an electrolysis mode, and in the process of purifying swimming pool water by using the salt-chlorine machine, the service life state of the electrolysis unit can gradually become larger and smaller along with long-term use, so that the normal output cannot be realized, the due purification effect cannot be achieved, and under the condition, the electrolysis unit needs to be replaced in time so as to ensure the purification effect. Therefore, how to grasp the life state of the electrolysis unit in real time is a technical problem to be solved.
Disclosure of Invention
The application aims to detect the service life state of an electrolytic unit and give an alarm when the service life state is insufficient.
The technical aim of the application is realized by the following technical scheme:
An electrolytic unit life detection circuit comprises a power supply module 1, a sampling module 2 and a control module 3;
the power module 1 is configured to provide level signals for the sampling module 2, the control module 3 and the electrolysis unit, and includes a fire wire end, a zero wire end, an electrolysis power supply end and a driving control end, where the fire wire end and the zero wire end are configured to receive external high-voltage ac electric signals, the electrolysis power supply end is configured to output electrolysis level signals to the electrolysis unit, and the driving control end is configured to output driving level signals to the sampling module 2 and the control module 3;
The sampling module 2 is configured to receive an electrolysis signal output by the electrolysis unit in the electrolysis process, amplify the electrolysis signal, and output the amplified electrolysis signal to the control module 3, and includes an input end and an output end, where the input end is configured to receive the electrolysis signal, the electrolysis signal is amplified to become a sampling signal, and the output end is configured to output the sampling signal to the control module 3;
The control module 3 is configured to determine a resistance value of the electrolysis unit according to the sampling signal, and send an alarm when a rise of the resistance value of the electrolysis unit compared with a resistance value of an original electrolysis unit reaches 50%, the control module 3 includes a sampling input end and an alarm control end, the sampling input end is configured to receive the sampling signal output by the sampling module 2, and the alarm control end is configured to send an alarm when the rise of the resistance value of the electrolysis unit compared with the resistance value of the original electrolysis unit reaches 50%.
By adopting the technical scheme, the current resistance of the electrolysis unit can be detected, and an alarm is sent when the fluctuation of the resistance of the electrolysis unit compared with the resistance of the original electrolysis unit reaches 50%.
Optionally, the power module 1 includes a transformer, two zener diodes, a power converter, and a filter component;
one end of a primary winding of the transformer is connected with an external fire wire end, the other end of the primary winding of the transformer is connected with an external zero wire end, and a secondary winding of the transformer comprises a first secondary winding and a second secondary winding;
One end of the first secondary winding is connected with the positive electrode of the first voltage stabilizing tube, and the other end of the first secondary winding is grounded;
the cathode of the first voltage stabilizing tube is connected with one end of the electrolysis unit;
one end of the second secondary winding is connected with the positive electrode of the second voltage stabilizing tube, and the other end of the second secondary winding is grounded;
The negative electrode of the second voltage stabilizing tube is connected with the input end of the power converter, the connection part is connected with one end of the first filtering component, and the other end of the first filtering component is grounded;
The output end of the power converter is connected with the driving input end of the control module 3, the connection part is connected with one end of a second filter assembly, and the other end of the second filter assembly is grounded;
the grounding end of the power converter is connected with the ground electrode.
By adopting the technical scheme, the external alternating current signal is converted into direct current signals with different voltage values to be output, and the voltage is driven for other modules and the electrolysis unit.
Optionally, the sampling module 2 includes a sampling component, a voltage division protection component and an operational amplifier; the sampling assembly comprises a current sampling resistor and a current limiting resistor; the voltage division protection assembly comprises a plurality of voltage division resistors;
One end of the current sampling resistor is connected with the other end of the electrolysis unit, and the other end of the current sampling resistor is grounded;
one end of the first current limiting resistor is connected with one end of the current sampling resistor, and the other end of the first current limiting resistor is connected with the first input end of the operational amplifier; one end of the second current limiting resistor is connected with the other end of the current sampling resistor, and the other end of the second current limiting resistor is connected with the second input end of the operational amplifier;
One end of the first voltage dividing resistor is connected with a driving power supply end of the operational amplifier, the other end of the first voltage dividing resistor is connected with one end of the second voltage dividing resistor and a reference voltage end of the operational amplifier, and the other end of the second voltage dividing resistor is connected with a ground electrode and a ground end of the operational amplifier;
one end of the third voltage dividing resistor is connected with the output end of the operational amplifier, and the other end of the third voltage dividing resistor is connected with the sampling input end of the control module 3.
By adopting the technical scheme, the current output by the electrolysis unit in the electrolysis process is obtained and amplified by the operational amplifier and then output to the control module 3.
Optionally, the sampling module 2 further includes a sixth capacitor;
One end of the sixth capacitor is connected with the connection part between one end of the third voltage dividing resistor and the output end of the operational amplifier, and the other end of the sixth capacitor is grounded.
By adopting the technical scheme, the interference signals of the output signals can be filtered through the capacitor filtering grounding.
Optionally, the sampling module 2 further includes a MOS tube; and a grid electrode of the MOS tube is connected with an external control signal, a source electrode of the MOS tube is connected with the other end of the current sampling resistor, and a drain electrode of the MOS tube is grounded.
Through adopting above-mentioned technical scheme, through switching on or closing of MOS pipe, can control the electrolysis of electrolysis unit and start or stop, reach the effect of switch.
Optionally, the control module 3 includes a single-chip microcomputer;
The first port of the singlechip is used for receiving the output end of the operational amplifier;
the energy supply port of the singlechip is used for receiving the output end of the power converter.
By adopting the technical scheme, the sampling signal can be obtained, and the current resistance value of the electrolysis unit can be determined according to the obtained sampling signal.
Optionally, the control module 3 further includes a sixth voltage dividing resistor and an LED indicator;
The second port of the singlechip is connected with one end of the sixth voltage dividing resistor, the other end of the sixth voltage dividing resistor is connected with the positive electrode of the LED indicator lamp, and the negative electrode of the LED indicator lamp is grounded.
By adopting the technical scheme, the singlechip can judge according to the current resistance value of the electrolytic unit, and send out an alarm when the fluctuation of the resistance value of the electrolytic unit compared with the resistance value of the original electrolytic unit reaches 50%.
In summary, the application at least comprises any one of the following beneficial effects:
1. The sampling module 2 can acquire the amplified current output by the electrolysis unit in the electrolysis process, and the amplified current is amplified into a sampling signal by an internal operational amplifier and then output to the control module 3, and the control module 3 can determine the current resistance value of the electrolysis unit according to the size of the sampling signal.
2. The control module 3 can judge whether the current resistance value of the electrolysis unit reaches 50% compared with the fluctuation of the resistance value of the original electrolysis unit according to the determined current resistance value of the electrolysis unit, if the fluctuation reaches 50%, the service life state of the electrolysis unit is insufficient, the due water purifying effect cannot be achieved, and under the condition, a signal can be output to the indicator lamp to remind a worker to replace the electrolysis sheet.
3. The power module 1 can convert external alternating current signals into direct current signals through the combination of a rectifier, a zener diode and a power converter, and output the direct current signals applicable to different modules to each module, and can also provide direct current signals required by electrolysis for the electrolysis unit.
Drawings
FIG. 1 is a block diagram of one embodiment of an electrolytic cell life detection circuit of the present application;
FIG. 2 is a schematic diagram of a power supply module of one embodiment of the electrolytic cell life detection circuit of the present application;
FIG. 3 is a schematic diagram of a sampling module of one embodiment of an electrolytic cell life detection circuit of the present application;
FIG. 4 is a schematic diagram of a control module of one embodiment of the electrolytic cell life detection circuit of the present application.
Detailed Description
The present application will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1, fig. 1 is a block diagram of one embodiment of the electrolytic cell life detection circuit of the present application, including a power supply block 1, a sampling block 2, and a control block 3, wherein:
The power module 1 is configured to provide level signals for the sampling module 2, the control module 3 and the electrolysis unit, and includes a fire wire end, a zero wire end, an electrolysis power supply end and a driving control end, where the fire wire end and the zero wire end are configured to receive external high-voltage ac signals, the electrolysis power supply end is configured to output electrolysis level signals to the electrolysis unit, and the driving control end is configured to output driving level signals to the sampling module 2 and the control module 3.
Regarding the power supply module 1: the power module 1 comprises a transformer, a voltage-stabilizing diode and a power converter, wherein a primary winding of the transformer can receive an external AC (alternating current) electric signal, a corresponding electric signal is induced on a secondary winding, the corresponding electric signal is rectified into a DC (direct current) electric signal through the voltage-stabilizing diode, and the converted DC can be converted into a DC electric signal with the amplitude suitable for a device through the power converter.
The sampling module 2 is configured to receive an electrolysis signal output by the electrolysis unit in the electrolysis process, amplify the electrolysis signal, and output the amplified electrolysis signal to the control module 3, and includes an input end and an output end, where the input end is configured to receive the electrolysis signal, the electrolysis signal is amplified and changed into a sampling signal, and the output end is configured to output the sampling signal to the control module 3.
Regarding the sampling module 2: the sampling module 2 comprises a current sampling resistor, a voltage dividing resistor and an operational amplifier, wherein the resistance value of the current sampling resistor is far smaller than that of the voltage dividing resistor, so that an electrolysis signal output by the electrolysis unit in the electrolysis process almost completely passes through the current sampling resistor, the voltage values at two ends of the current sampling resistor are detected, the voltage values of the electrolysis signal can be obtained by combining the resistance values of the current sampling resistor, the obtained electrolysis signal can be amplified by the operational amplifier and then becomes a sampling signal, and the sampling signal can be output to the control module 3.
The control module 3 is configured to determine a resistance value of the electrolysis unit according to the sampling signal, and send an alarm when a rise of the resistance value of the electrolysis unit compared with a resistance value of an original electrolysis unit reaches 50%, the control module 3 includes a sampling input end and an alarm control end, the sampling input end is configured to receive the sampling signal output by the sampling module 2, and the alarm control end is configured to send an alarm when the rise of the resistance value of the electrolysis unit compared with the resistance value of the original electrolysis unit reaches 50%.
Regarding the control module 3: the control module 3 comprises a singlechip and an indicator, the singlechip can acquire sampling signals output by the sampling module 2, determine the current resistance value of the electrolysis unit according to the sampling signals, compare the current resistance value of the electrolysis unit with the original resistance value of the electrolysis unit, and when the fluctuation of the resistance value of the electrolysis unit compared with the resistance value of the original electrolysis unit reaches 50%, the singlechip can output control signals to the indicator, the indicator can send out an alarm to remind workers to replace the electrolysis unit in time.
Referring to fig. 2, fig. 2 is a schematic diagram of a power module of one embodiment of the electrolytic cell life detection circuit of the present application, the power module 1 including a transformer, two zener diodes, a power converter, and a filter assembly;
One end of a primary winding of the transformer T1 is connected with an external live wire end, the other end of the primary winding of the transformer T1 is connected with an external zero wire end, and a secondary winding of the transformer T1 comprises a first secondary winding and a second secondary winding.
Specifically, the primary winding of the transformer T1 receives an external AC electrical signal, and the two secondary windings of the transformer T1 respectively induce corresponding AC electrical signals.
One end of the first secondary winding is connected with the positive electrode of the first voltage stabilizing tube D1, and the other end of the first secondary winding is grounded;
The negative electrode of the first voltage stabilizing tube D1 is connected with one end of the electrolysis unit.
Specifically, the AC electric signal generated by the first secondary winding of the transformer T1 is rectified by the first voltage stabilizing tube D1 to form a DC electric signal suitable for electrolysis, and in this embodiment, a 12V DC electric signal is generated.
One end of the second secondary winding is connected with the positive electrode of the second voltage stabilizing tube D2, and the other end of the second secondary winding is grounded;
The negative electrode of the second voltage stabilizing tube D2 is connected with the input end of the power converter, the connection part is connected with one end of the first filter assembly, and the other end of the first filter assembly is grounded;
The output end of the power converter U1 is connected with the driving input end of the control module 3, the connection part is connected with one end of the second filter assembly, and the other end of the second filter assembly is grounded.
Specifically, the AC electric signal generated by the second secondary winding of the transformer T1 is rectified into a dc electric signal suitable for the sampling module 2 and the control module 3 by the second voltage stabilizing tube D2, and the interference signal is removed by the filtering component, so as to prevent the interference signal from affecting the device.
More specifically, in the present embodiment, the filter components are a capacitor C1, a capacitor C2, a capacitor C3, a capacitor C4, and a capacitor C5, which can pass an ac-blocking direct current, and output an ac signal that may interfere with the operation of the device to the ground discharge circuit.
The grounding end of the power converter U1 is connected with a grounding electrode.
Further, the sampling module 2 comprises a sampling component, a voltage division protection component and an operational amplifier; the sampling assembly comprises a current sampling resistor and a current limiting resistor; the voltage division protection assembly includes a plurality of voltage division resistors.
One end of the current sampling resistor R1 is connected with the other end of the electrolysis unit, and the other end of the current sampling resistor R1 is grounded;
One end of the first current limiting resistor R2 is connected with one end of the current sampling resistor R1, and the other end of the first current limiting resistor R2 is connected with the first input end of the operational amplifier U2; one end of the second current limiting resistor R3 is connected with the other end of the current sampling resistor R1, and the other end of the second current limiting resistor R3 is connected with the second input end of the operational amplifier U2.
Specifically, the resistance value of the current sampling resistor R1 is far smaller than the resistance values of the current limiting resistor R2 and the current limiting resistor R3, so that the electrolysis signal outputted by the electrolysis unit during electrolysis is outputted almost entirely through the current sampling resistor. In the present embodiment, the resistance values of the current limiting resistor R2 and the current limiting resistor R3 are both 1kΩ, and the resistance value of the current sampling resistor R1 is only 0.2mΩ, which is much smaller than the current limiting resistor R2 and the current limiting resistor R3.
More specifically, the operational amplifier U2 may obtain the voltage values at two ends of the current sampling resistor R1, amplify the voltage, and output the amplified voltage to the singlechip in the control module 3, where the singlechip may determine the magnitude of the sampling signal in combination with the resistance value of the current sampling resistor R1.
One end of the first voltage dividing resistor is connected with a driving power supply end of the operational amplifier, the other end of the first voltage dividing resistor is connected with one end of the second voltage dividing resistor and a reference voltage end of the operational amplifier, and the other end of the second voltage dividing resistor is connected with a ground electrode and a ground end of the operational amplifier;
One end of the third voltage dividing resistor is connected with the output end of the operational amplifier, and the other end of the third voltage dividing resistor is connected with the sampling input end of the control module (3).
Specifically, by providing the voltage dividing resistors R4, R5, and R6, the device is prevented from being damaged by an excessive instantaneous voltage, and the circuit is voltage-divided.
Further, the sampling module 2 further comprises a sixth capacitor C6;
One end of the sixth capacitor C6 is connected to a connection point between one end of the third voltage dividing resistor R6 and the output end of the operational amplifier U2, and the other end is grounded.
Specifically, the capacitor C6 is grounded through filtering, so that an interference signal of a signal output to the singlechip in the control module 3 can be filtered, and the reliability of an output signal is improved.
Further, the sampling module 2 further comprises a MOS transistor Q1; and a grid electrode of the MOS tube Q1 is connected with an external control signal, a source electrode of the MOS tube Q1 is connected with the other end of the current sampling resistor R1, and a drain electrode of the MOS tube Q1 is grounded.
Specifically, the body diode in the MOS transistor Q1 is controlled to be turned on or off by an external control signal, so that electrolysis of the electrolysis unit can be controlled to start or stop.
More specifically, a resistor R7 is connected in series at the connection between the gate of the MOS transistor Q1 and an external control signal, so as to prevent the MOS transistor Q1 from being damaged due to the overlarge external control signal, one end of a resistor R8 can be connected at the connection between the gate of the MOS transistor and the resistor R7, the other end of the resistor R8 is grounded, and when the body diode in the MOS transistor Q1 is not turned on, a bleeder circuit is provided to output an external control signal from the resistor R7 and the resistor R8 to the ground.
Further, the control module 3 comprises a singlechip U3;
The first port SEG1 of the singlechip U3 is used for receiving the output end of the operational amplifier.
Specifically, the first port SEG1 of the single-chip microcomputer U3 receives the sampling signal output by the operational amplifier in the sampling module 2, and the single-chip microcomputer can determine the current resistance value of the electrolytic unit according to the voltage value of the sampling signal and the resistance value of the current sampling resistor R1.
More specifically, after determining the current resistance value of the electrolysis unit, the single-chip microcomputer U3 compares the current resistance value with the preset resistance value in the single-chip microcomputer, and calculates the resistance value of the electrolysis unit through ohm law according to the known current and voltage of the electrolysis unit. In this embodiment, the preset resistance value is the original resistance value of the electrolysis unit, and if the current resistance value of the electrolysis unit is detected to rise by 50% or more, it is determined that the electrolysis unit to be detected needs to be replaced. For example, if the brine in the brine-chlorine machine is 3500ppm (parts per million, the concentration expressed in parts by weight of solute in the total solution mass, also referred to as the concentration in parts by weight), the electrolysis unit is set to 100% output, the resistance value of the electrolysis unit is 2 Ω when the electrolysis unit is a new electrolysis sheet, in this case, if the output current of the electrolysis unit is detected to be 10A, the singlechip determines that the current resistance value is 2 Ω, which indicates that the current electrolysis unit is just before the change; if the output current of the electrolysis unit is detected to be 9A, the singlechip determines that the current resistance value is 2.2 omega, which indicates that the resistance value of the electrolysis unit is still in a normal range; if the output current of the electrolytic unit is detected to be 5A, the singlechip determines that the current resistance value is 3Ω, which indicates that the resistance value of the electrolytic unit is 50% higher than that of a new electrolytic unit, and the service life of the electrolytic unit is insufficient and needs to be replaced.
The energy supply port of the singlechip U3 is used for receiving the output end of the power converter.
Specifically, after the power module 1 receives an external ac signal, the DC signal formed by rectification is converted into a 5V DC signal by the power converter U1, and the 5V DC signal is input to each energy supply port of the single-chip microcomputer U3, where the energy supply ports include: port AVCC, port DVCC1, and port DVCC.
Further, the control module 3 further comprises a sixth voltage dividing resistor and an LED indicator lamp;
The second port of the singlechip is connected with one end of the sixth voltage dividing resistor, the other end of the sixth voltage dividing resistor is connected with the positive electrode of the LED indicator lamp, and the negative electrode of the LED indicator lamp is grounded.
Specifically, the singlechip U3 controls the LED lamp to flash and alarm according to the determined comparison result of the resistance value of the current electrolysis unit and the resistance value of the original electrolysis unit, and reminds relevant personnel to replace if the comparison result exceeds the preset resistance value threshold of the singlechip U3. In this embodiment, if the output current of the electrolysis unit is detected to be 5A, the singlechip determines that the current resistance value is 3Ω, which indicates that the resistance value of the electrolysis unit is 50% higher than that of a new electrolysis unit, and the service life of the electrolysis unit is insufficient, and under this condition, the singlechip U3 controls the second port SEG2 to output a control signal, controls the LED lamp D3 to flash, and reminds related personnel to replace the electrolysis sheet.
The embodiments of the present application are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in this way, therefore: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.
Claims (7)
1. An electrolytic cell life detection circuit is characterized in that: comprises a power supply module (1), a sampling module (2) and a control module (3);
The power supply module (1) is used for providing level signals for the sampling module (2), the control module (3) and the electrolysis unit, and comprises a fire wire end, a zero wire end, an electrolysis power supply end and a driving control end, wherein the fire wire end and the zero wire end are used for receiving external high-voltage alternating current signals, the electrolysis power supply end is used for outputting electrolysis level signals to the electrolysis unit, and the driving control end is used for outputting driving level signals to the sampling module (2) and the control module (3);
The sampling module (2) is used for receiving an electrolysis signal output by the electrolysis unit in the electrolysis process, amplifying the electrolysis signal and outputting the amplified electrolysis signal to the control module (3), and comprises an input end and an output end, wherein the input end is used for receiving the electrolysis signal, the electrolysis signal is amplified to become a sampling signal, and the output end is used for outputting the sampling signal to the control module (3);
The control module (3) is used for determining the resistance value of the electrolysis unit according to the sampling signal, and sending out an alarm when the fluctuation of the resistance value of the electrolysis unit compared with the resistance value of the original electrolysis unit reaches 50%, the control module (3) comprises a sampling input end and an alarm control end, the sampling input end is used for receiving the sampling signal output by the sampling module (2), and the alarm control end is used for sending out an alarm when the fluctuation of the resistance value of the electrolysis unit compared with the resistance value of the original electrolysis unit reaches 50%.
2. The electrolytic cell life detection circuit according to claim 1, wherein: the power module (1) comprises a transformer, two voltage stabilizing diodes, a power converter and a filtering component;
one end of a primary winding of the transformer is connected with an external fire wire end, the other end of the primary winding of the transformer is connected with an external zero wire end, and a secondary winding of the transformer comprises a first secondary winding and a second secondary winding;
One end of the first secondary winding is connected with the positive electrode of the first voltage stabilizing tube, and the other end of the first secondary winding is grounded;
the cathode of the first voltage stabilizing tube is connected with one end of the electrolysis unit;
one end of the second secondary winding is connected with the positive electrode of the second voltage stabilizing tube, and the other end of the second secondary winding is grounded;
The negative electrode of the second voltage stabilizing tube is connected with the input end of the power converter, the connection part is connected with one end of the first filtering component, and the other end of the first filtering component is grounded;
The output end of the power converter is connected with the driving input end of the control module (3), the connection part is connected with one end of a second filter assembly, and the other end of the second filter assembly is grounded;
the grounding end of the power converter is connected with the ground electrode.
3. The electrolytic cell life detection circuit according to claim 2, wherein: the sampling module (2) comprises a sampling component, a voltage division protection component and an operational amplifier; the sampling assembly comprises a current sampling resistor and a current limiting resistor; the voltage division protection assembly comprises a plurality of voltage division resistors;
One end of the current sampling resistor is connected with the other end of the electrolysis unit, and the other end of the current sampling resistor is grounded;
one end of the first current limiting resistor is connected with one end of the current sampling resistor, and the other end of the first current limiting resistor is connected with the first input end of the operational amplifier; one end of the second current limiting resistor is connected with the other end of the current sampling resistor, and the other end of the second current limiting resistor is connected with the second input end of the operational amplifier;
One end of the first voltage dividing resistor is connected with a driving power supply end of the operational amplifier, the other end of the first voltage dividing resistor is connected with one end of the second voltage dividing resistor and a reference voltage end of the operational amplifier, and the other end of the second voltage dividing resistor is connected with a ground electrode and a ground end of the operational amplifier;
One end of the third voltage dividing resistor is connected with the output end of the operational amplifier, and the other end of the third voltage dividing resistor is connected with the sampling input end of the control module (3).
4. The electrolytic cell life detection circuit according to claim 3, wherein: the sampling module (2) further comprises a sixth capacitor;
One end of the sixth capacitor is connected with the connection part between one end of the third voltage dividing resistor and the output end of the operational amplifier, and the other end of the sixth capacitor is grounded.
5. The electrolytic cell life detection circuit according to claim 3, wherein: the sampling module (2) further comprises a MOS tube; and a grid electrode of the MOS tube is connected with an external control signal, a source electrode of the MOS tube is connected with the other end of the current sampling resistor, and a drain electrode of the MOS tube is grounded.
6. The electrolytic cell life detection circuit according to claim 3, wherein: the control module (3) comprises a singlechip;
The first port of the singlechip is used for receiving the output end of the operational amplifier;
the energy supply port of the singlechip is used for receiving the output end of the power converter.
7. The electrolytic cell life detection circuit according to claim 6, wherein: the control module (3) further comprises a sixth voltage dividing resistor and an LED indicator lamp;
The second port of the singlechip is connected with one end of the sixth voltage dividing resistor, the other end of the sixth voltage dividing resistor is connected with the positive electrode of the LED indicator lamp, and the negative electrode of the LED indicator lamp is grounded.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221351625U true CN221351625U (en) | 2024-07-16 |
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