CN215925091U - Electrolytic control circuit of hypochlorous acid generator - Google Patents

Electrolytic control circuit of hypochlorous acid generator Download PDF

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Publication number
CN215925091U
CN215925091U CN202120129506.8U CN202120129506U CN215925091U CN 215925091 U CN215925091 U CN 215925091U CN 202120129506 U CN202120129506 U CN 202120129506U CN 215925091 U CN215925091 U CN 215925091U
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resistor
circuit
switch circuit
microprocessor
electrode
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CN202120129506.8U
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闫喜梁
张信贵
黄毅
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Xiamen Jite Electronic Technology Co ltd
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Xiamen Jite Electronic Technology Co ltd
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Abstract

The utility model discloses an electrolysis control circuit of a hypochlorous acid generator, which comprises a microprocessor, an electrolysis power circuit, a first electrode interface, a first switch circuit and a current feedback circuit, wherein the microprocessor is connected with the first electrode interface; the first electrode interface comprises a first electrode interface, a second electrode interface, a first switch circuit, a current feedback circuit, a microprocessor and a control end, wherein pins 1 and 2 of the first electrode interface are respectively connected with the output end of the electrolysis power supply circuit and the input end of the first switch circuit, the output end of the first switch circuit is connected with the input end of the current feedback circuit and the feedback input end of the microprocessor, the control end of the first switch circuit is connected with the first output end of the microprocessor, and the output end of the current feedback circuit is grounded. The utility model can effectively prevent the electrolytic electrode from being damaged due to long-time electrification work in the electrolytic solution with poor conductivity and prevent the electrolytic electrode from being damaged due to long-time electrification work under the condition of being separated from the electrolytic solution.

Description

Electrolytic control circuit of hypochlorous acid generator
Technical Field
The utility model relates to a hypochlorous acid generator, in particular to an electrolysis control circuit of the hypochlorous acid generator.
Background
Hypochlorous acid is a sterilization disinfectant, and is widely applied to disinfection of public places and household environments. The existing hypochlorous acid generator mainly adopts a mode of electrolyzing an electrolytic solution (such as tap water disinfected by chlorine) containing chlorine ions to produce a hypochlorous acid solution, but if the electrolyte of the electrolytic solution is excessively consumed in the working process, the electric conductivity of the electrolytic solution is reduced, and even the situation that an electrolytic electrode is separated from the electrolytic solution can occur; the conductivity of the electrolytic solution can be reduced and the conductivity between the positive and negative electrolytic electrodes of the hypochlorous acid generator can be deteriorated when the electrolytic electrode is separated from the electrolytic solution; if the positive and negative electrolytic electrodes of the hypochlorous acid generator work in the electrolytic solution with poor conductivity for a long time or the positive and negative electrolytic electrodes of the hypochlorous acid generator work away from the electrolytic solution for a long time, the electrolytic electrodes are easy to overheat and damage, and the hypochlorous acid generator cannot be used.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an electrolysis control circuit of a hypochlorous acid generator, which can prevent an electrolysis electrode from being damaged due to long-time electrifying operation in an electrolytic solution with poor conductivity and prevent the electrolysis electrode from being damaged due to long-time electrifying operation in a condition of being separated from the electrolytic solution.
In order to achieve the above purpose, the solution of the utility model is:
an electrolysis control circuit of a hypochlorous acid generator comprises a microprocessor, an electrolysis power circuit, a first electrode interface, a first switch circuit and a current feedback circuit; the first electrode interface comprises a first electrode interface, a second electrode interface, a first switch circuit, a current feedback circuit, a microprocessor and a control end, wherein pins 1 and 2 of the first electrode interface are respectively connected with the output end of the electrolysis power supply circuit and the input end of the first switch circuit, the output end of the first switch circuit is connected with the input end of the current feedback circuit and the feedback input end of the microprocessor, the control end of the first switch circuit is connected with the first output end of the microprocessor, and the output end of the current feedback circuit is grounded.
The first switch circuit comprises a first NMOS tube, a first resistor and a second resistor, the drain electrode of the first NMOS tube is the input end of the first switch circuit, the grid electrode of the first NMOS tube is connected with the first end of the first resistor and the first end of the second resistor, the second end of the first resistor is the control end of the first switch circuit, and the second end of the second resistor is connected with the source electrode of the first NMOS tube and serves as the output end of the first switch circuit.
The electrolysis control circuit of the hypochlorous acid generator further comprises a second electrode interface and a second switch circuit; and pins 1 and 2 of the second electrode interface are respectively connected with the output end of the electrolysis power supply circuit and the input end of the second switch circuit, the output end of the second switch circuit is connected with the input end of the current feedback circuit and the feedback input end of the microprocessor, and the control end of the second switch circuit is connected with the second output end of the microprocessor.
The second switch circuit comprises a second NMOS tube, a third resistor and a fourth resistor, the drain electrode of the second NMOS tube is the input end of the second switch circuit, the grid electrode of the second NMOS tube is connected with the first end of the third resistor and the first end of the fourth resistor, the second end of the third resistor is the control end of the second switch circuit, and the second end of the fourth resistor is connected with the source electrode of the second NMOS tube and serves as the output end of the second switch circuit.
The current feedback circuit comprises a fifth resistor and a sixth resistor, wherein the first end of the fifth resistor is connected with the first end of the sixth resistor and serves as the input end of the current feedback circuit, and the second end of the fifth resistor is connected with the second end of the sixth resistor and serves as the output end of the current feedback circuit.
The electrolysis power supply circuit comprises a boosting chip, a first inductor, a first diode, a first capacitor, a seventh resistor and an eighth resistor; the voltage boosting chip is characterized in that a VDD pin of the voltage boosting chip is connected with a first end of the first inductor and serves as an input end of the electrolytic power supply circuit, an LX pin of the voltage boosting chip is connected with a second end of the first inductor and a positive electrode of the first diode, an FB pin of the voltage boosting chip is connected with a first end of the seventh resistor and a first end of the eighth resistor, a second end of the seventh resistor is connected with a negative electrode of the first diode and a first end of the first capacitor and serves as an output end of the electrolytic power supply circuit, a VSS pin of the voltage boosting chip, a second end of the eighth resistor and a second end of the first capacitor are grounded, a VSENSE pin of the voltage boosting chip is connected with an input end of the current feedback circuit, and a CE pin of the voltage boosting chip is connected with a third output end of the microprocessor.
After the scheme is adopted, the microprocessor can obtain the current between the electrified positive and negative electrolysis electrodes through the current feedback circuit, and the microprocessor can judge the difference of the conductivity between the electrified positive and negative electrolysis electrodes through the current between the electrified positive and negative electrolysis electrodes; if the conductivity between the electrified positive and negative electrolytic electrodes is poor, the positive and negative electrolytic electrodes can be determined to work in the electrolytic solution with poor conductivity or work in the condition that the positive and negative electrolytic electrodes are separated from the electrolytic solution, and the microprocessor controls the positive and negative electrolytic electrodes to be powered off, so that the electrolytic electrodes are prevented from being damaged due to long-time power-on work in the electrolytic solution with poor conductivity and the electrolytic electrodes are prevented from being damaged due to long-time power-on work in the condition that the electrolytic electrodes are separated from the electrolytic solution.
Drawings
Fig. 1 is a schematic circuit diagram of the present invention.
Detailed Description
In order to further explain the technical solution of the present invention, the present invention is explained in detail by the following specific examples.
As shown in figure 1, the utility model discloses an electrolysis control circuit of a hypochlorous acid generator, which comprises a microprocessor 1, an electrolysis power circuit 2, a first electrode interface 3, a first switch circuit 4 and a current feedback circuit 5; pins 1 and 2 of the first electrode interface 3 are respectively connected with the output end of the electrolysis power supply circuit 2 and the input end of the first switch circuit 4, the output end of the first switch circuit 4 is connected with the input end of the current feedback circuit 5 and the feedback input end of the microprocessor 1, the control end of the first switch circuit 4 is connected with the first output end of the microprocessor 1, and the output end of the current feedback circuit 5 is grounded; the microprocessor 1 may be a single chip microcomputer with an AD conversion chip built therein.
As shown in fig. 1, the present invention may further include a second electrode interface 6 and a second switching circuit 7; pin 1 and pin 2 of the second electrode interface 6 are respectively connected with the output end of the electrolysis power supply circuit 2 and the input end of the second switch circuit 7, the output end of the second switch circuit 7 is connected with the input end of the current feedback circuit 5 and the feedback input end of the microprocessor 1, and the control end of the second switch circuit 7 is connected with the second output end of the microprocessor 1.
When the electrolytic cell is used, pins 1 and 2 of the first electrode interface 3 are used for connecting a group of positive and negative electrolytic electrodes, and pins 1 and 2 of the second electrode interface 6 are used for connecting the other group of positive and negative electrolytic electrodes; the microprocessor 1 can control the first switch circuit 4 and the second switch circuit 7 to be alternatively conducted, so that one group of positive and negative electrolysis electrodes connected with the first electrode interface 3 and the other group of positive and negative electrolysis electrodes connected with the second electrode interface 6 are alternatively electrified, and then one group of positive and negative electrolysis electrodes connected with the first electrode interface 3 and the other group of positive and negative electrolysis electrodes connected with the second electrode interface 6 are alternatively electrolyzed by the electrolytic solution containing the chloride ions, thereby effectively prolonging the service life of the electrolysis electrodes. After the microprocessor 1 only controls the first switch circuit 4 to be conducted, the microprocessor 1 obtains the current between the positive and negative electrolysis electrodes connected with the first electrode interface 3 through the current feedback circuit 5, and then the microprocessor 1 judges the difference of the conductivity between the positive and negative electrolysis electrodes connected with the first electrode interface 3 according to the current between the positive and negative electrolysis electrodes connected with the first electrode interface 3; if the conductivity between the positive and negative electrolysis electrodes connected to the first electrode interface 3 is poor, it can be determined that the positive and negative electrolysis electrodes connected to the first electrode interface 3 are powered on and operate in the electrolytic solution with poor conductivity or the positive and negative electrolysis electrodes connected to the first electrode interface 3 are powered on and operate when separated from the electrolytic solution, and the microprocessor 1 controls the first switching circuit 4 to be turned off to turn off the positive and negative electrolysis electrodes connected to the first electrode interface 3, thereby preventing the positive and negative electrolysis electrodes connected to the first electrode interface 3 from being damaged due to long-term power-on operation in the electrolytic solution with poor conductivity and preventing the positive and negative electrolysis electrodes connected to the first electrode interface 3 from being damaged due to long-term power-on operation when separated from the electrolytic solution. In the utility model, after the microprocessor 1 only controls the second switch circuit 7 to be conducted, the microprocessor 1 acquires the current between the positive and negative electrolysis electrodes connected with the second electrode interface 5 through the current feedback circuit 5, then the microprocessor 1 judges the difference of the conductivity between the positive and negative electrolysis electrodes connected with the second electrode interface 6 according to the current between the positive and negative electrolysis electrodes connected with the second electrode interface 6, if the difference of the conductivity between the positive and negative electrolysis electrodes connected with the second electrode interface 6 is detected, the microprocessor 1 can determine that the positive and negative electrolysis electrodes connected with the second electrode interface 6 are electrified to work in the electrolytic solution with the difference of the conductivity or the positive and negative electrolysis electrodes connected with the second electrode interface 6 are electrified to work under the condition of being separated from the electrolytic solution, and then the microprocessor 1 controls the second switch circuit 7 to be switched off to enable the positive and negative electrolysis electrodes connected with the second electrode interface 6 to be connected, The negative electrolysis electrode is powered off, so that the damage of the positive electrolysis electrode and the negative electrolysis electrode connected with the second electrode interface 6 due to long-time electrification work in the electrolytic solution with poor conductivity is avoided, and the damage of the positive electrolysis electrode and the negative electrolysis electrode connected with the second electrode interface 6 due to long-time electrification work under the condition of separation from the electrolytic solution is prevented.
As shown in fig. 1, specifically, the first switch circuit 4 includes a first NMOS transistor NM1, a first resistor R1, and a second resistor R2, a drain of the first NMOS transistor NM1 is an input terminal of the first switch circuit 4, a gate of the first NMOS transistor NM1 is connected to a first end of the first resistor R1 and a first end of the second resistor R2, a second end of the first resistor R1 is a control terminal of the first switch circuit 4, and a second end of the second resistor R2 is connected to a source of the first NMOS transistor NM1 and serves as an output terminal of the first switch circuit 4. As shown in fig. 1, the second switch circuit 7 includes a second NMOS transistor NM2, a third resistor R3, and a fourth resistor R4, a drain of the second NMOS transistor NM2 is an input terminal of the second switch circuit 7, a gate of the second NMOS transistor NM2 is connected to a first end of the third resistor R3 and a first end of the fourth resistor R4, a second end of the third resistor R3 is a control terminal of the second switch circuit 7, and a second end of the fourth resistor R4 is connected to a source of the second NMOS transistor 2 and serves as an NM output terminal of the second switch circuit 7.
As shown in fig. 1, the current feedback circuit 5 may include a fifth resistor R5 and a sixth resistor R6, a first end of the fifth resistor R5 is connected to a first end of the sixth resistor R6 and serves as an input end of the current feedback circuit 5, and a second end of the fifth resistor R5 is connected to a second end of the sixth resistor R6 and serves as an output end of the current feedback circuit 5. When the microprocessor 1 only controls the first switch circuit 4 to be conducted, the parallel voltage of the fifth resistor R5 and the sixth resistor R6 can reflect the current between the positive and negative electrolysis electrodes connected with the first electrode interface 3, so that the microprocessor 1 can obtain the current between the positive and negative electrolysis electrodes connected with the first electrode interface 3; when the microprocessor 1 controls only the second switch circuit 7 to be turned on, the parallel voltage of the fifth resistor R5 and the sixth resistor R6 may reflect the magnitude of the current between the positive and negative electrodes connected to the second electrode interface 6, so that the microprocessor 1 can obtain the magnitude of the current between the positive and negative electrodes connected to the second electrode interface 6. In the current feedback circuit 5, the fifth resistor R5 and the sixth resistor R6 are provided in parallel, which can also make the heat generation of the fifth resistor R5 and the sixth resistor R6 small.
As shown in fig. 1, the electrolytic power supply circuit 2 includes a boost chip U1, a first inductor L1, a first diode D1, a first capacitor C1, a seventh resistor R7, and an eighth resistor R8; the model of the voltage boost chip U1 may be ME2170, the VDD pin of the voltage boost chip U1 is connected to the first end of the first inductor L1 and serves as the input terminal of the electrolytic power supply circuit 2, the LX pin of the voltage boost chip U1 is connected to the second end of the first inductor L1 and the positive electrode of the first diode D1, the FB pin of the voltage boost chip U1 is connected to the first end of the seventh resistor R7 and the first end of the eighth resistor R8, the second end of the seventh resistor R7 is connected to the negative electrode of the first diode D1 and the first end of the first capacitor C1 and serves as the output terminal of the electrolytic power supply circuit 2, the VSS pin of the voltage boost chip U1, the second end of the eighth resistor R8 and the second end of the first capacitor C1 are grounded, the VSENSE pin of the voltage boost chip U1 is connected to the input terminal of the current feedback circuit 5, the CE pin of the voltage boost chip U1 is connected to the third output terminal of the microprocessor 1, and the third output terminal of the microprocessor 1 may be connected to the CE pin of the voltage boost chip U1 through the tenth resistor R10, and the feedback input terminal of the microprocessor 1 may be connected to the output terminal of the first switching circuit 4, the output terminal of the second switching circuit 7 and the input terminal of the current feedback circuit 5 through an RC filter circuit composed of a ninth resistor R9 and a second capacitor C2.
The above embodiments and drawings are not intended to limit the form and style of the present invention, and any suitable changes or modifications thereof by those skilled in the art should be considered as not departing from the scope of the present invention.

Claims (6)

1. An electrolysis control circuit of a hypochlorous acid generator is characterized in that: the electrolytic cell comprises a microprocessor, an electrolysis power circuit, a first electrode interface, a first switch circuit and a current feedback circuit;
the first electrode interface comprises a first electrode interface, a second electrode interface, a first switch circuit, a current feedback circuit, a microprocessor and a control end, wherein pins 1 and 2 of the first electrode interface are respectively connected with the output end of the electrolysis power supply circuit and the input end of the first switch circuit, the output end of the first switch circuit is connected with the input end of the current feedback circuit and the feedback input end of the microprocessor, the control end of the first switch circuit is connected with the first output end of the microprocessor, and the output end of the current feedback circuit is grounded.
2. The electrolysis control circuit of a hypochlorous acid generator as set forth in claim 1, wherein: the first switch circuit comprises a first NMOS tube, a first resistor and a second resistor, the drain electrode of the first NMOS tube is the input end of the first switch circuit, the grid electrode of the first NMOS tube is connected with the first end of the first resistor and the first end of the second resistor, the second end of the first resistor is the control end of the first switch circuit, and the second end of the second resistor is connected with the source electrode of the first NMOS tube and serves as the output end of the first switch circuit.
3. The electrolysis control circuit of a hypochlorous acid generator as set forth in claim 1, wherein: the device also comprises a second electrode interface and a second switch circuit;
and pins 1 and 2 of the second electrode interface are respectively connected with the output end of the electrolysis power supply circuit and the input end of the second switch circuit, the output end of the second switch circuit is connected with the input end of the current feedback circuit and the feedback input end of the microprocessor, and the control end of the second switch circuit is connected with the second output end of the microprocessor.
4. The electrolysis control circuit of a hypochlorous acid generator as set forth in claim 3, wherein: the second switch circuit comprises a second NMOS tube, a third resistor and a fourth resistor, the drain electrode of the second NMOS tube is the input end of the second switch circuit, the grid electrode of the second NMOS tube is connected with the first end of the third resistor and the first end of the fourth resistor, the second end of the third resistor is the control end of the second switch circuit, and the second end of the fourth resistor is connected with the source electrode of the second NMOS tube and serves as the output end of the second switch circuit.
5. An electrolysis control circuit of hypochlorous acid generator as claimed in claim 1 or 3, wherein: the current feedback circuit comprises a fifth resistor and a sixth resistor, wherein the first end of the fifth resistor is connected with the first end of the sixth resistor and serves as the input end of the current feedback circuit, and the second end of the fifth resistor is connected with the second end of the sixth resistor and serves as the output end of the current feedback circuit.
6. The electrolysis control circuit of a hypochlorous acid generator as set forth in claim 1, wherein: the electrolysis power supply circuit comprises a boosting chip, a first inductor, a first diode, a first capacitor, a seventh resistor and an eighth resistor; the voltage boosting chip is characterized in that a VDD pin of the voltage boosting chip is connected with a first end of the first inductor and serves as an input end of the electrolytic power supply circuit, an LX pin of the voltage boosting chip is connected with a second end of the first inductor and a positive electrode of the first diode, an FB pin of the voltage boosting chip is connected with a first end of the seventh resistor and a first end of the eighth resistor, a second end of the seventh resistor is connected with a negative electrode of the first diode and a first end of the first capacitor and serves as an output end of the electrolytic power supply circuit, a VSS pin of the voltage boosting chip, a second end of the eighth resistor and a second end of the first capacitor are grounded, a VSENSE pin of the voltage boosting chip is connected with an input end of the current feedback circuit, and a CE pin of the voltage boosting chip is connected with a third output end of the microprocessor.
CN202120129506.8U 2021-01-18 2021-01-18 Electrolytic control circuit of hypochlorous acid generator Active CN215925091U (en)

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CN202120129506.8U CN215925091U (en) 2021-01-18 2021-01-18 Electrolytic control circuit of hypochlorous acid generator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202120129506.8U CN215925091U (en) 2021-01-18 2021-01-18 Electrolytic control circuit of hypochlorous acid generator

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CN215925091U true CN215925091U (en) 2022-03-01

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