CN210573314U - Control circuit of ozone generator - Google Patents
Control circuit of ozone generator Download PDFInfo
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- CN210573314U CN210573314U CN201921858390.0U CN201921858390U CN210573314U CN 210573314 U CN210573314 U CN 210573314U CN 201921858390 U CN201921858390 U CN 201921858390U CN 210573314 U CN210573314 U CN 210573314U
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Abstract
The utility model discloses a control circuit of an ozone generator, which comprises a main controller and a self-excited oscillation circuit; the boost control signal output end of the main controller is connected with the control signal input end of the self-excited oscillation circuit; the self-oscillation circuit comprises a transformer, a first peripheral circuit on the input side of the transformer and a second peripheral circuit on the output side of the transformer; the first peripheral circuit is respectively connected with the control signal input end and the power supply, and the output end of the peripheral circuit is a positive electrode plate and a negative electrode plate which are oppositely arranged; the self-oscillation circuit is used for boosting the voltage through the transformer and the first peripheral circuit and the second peripheral circuit thereof according to a control signal received from the main controller and combined with a voltage signal from the power supply to achieve a high voltage for generating the required ozone. The utility model discloses utilize the button to realize the free switching of conventional shelves and reinforcement shelves to satisfy the demand of disinfecting under the unnecessary environment, operate convenient and fast more.
Description
Technical Field
The utility model belongs to the technical field of sterilization and disinfection, a control circuit of ozone generator is related to.
Background
At present, when various small containers such as refrigerators, freezers, food cabinets, tea cabinets, cabinets for storing fruits and the like store food or other articles, serious peculiar smell is generated due to breeding and propagation of bacteria and mold, and tableware, utensils and the like are polluted. The activated carbon is a commonly used deodorant in human life, and is deodorized mainly by means of physical adsorption; however, the activated carbon has no sterilization and disinfection functions, and is difficult to effectively remove bacteria, mold and the like which are bred in the container.
The ozone has strong sterilization effect and can effectively control the harm of mould, bacteria and the like; in addition, the ozone has strong oxidizing property, and can react with residual organophosphorus and nitrate pesticides in vegetables and fruits to generate non-toxic small molecular compounds which are soluble in water and can be washed and removed, so that the residual pesticides on the vegetables and fruits can be effectively degraded; and the ozone can eliminate the activity of ethylene, ethanol, acetaldehyde and the like, effectively inhibit the respiration intensity of the fruits and vegetables, and delay the conversion speed of nutrient substances, thereby obviously improving the fresh-keeping period of the fruits and vegetables. Therefore, ozone has become an important sterilization and disinfection method.
However, the conventional ozone generating device generally can only generate a certain amount of ozone for sterilization and disinfection, and the sterilization mode cannot be changed according to the environmental requirements, so that the sterilization effect is difficult to be effectively ensured.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a control circuit of ozone generator to the technical problem who exists among the prior art, satisfies the demand of disinfecting under the unnecessary environment through the ozone volume time that the adjustment produced.
The utility model provides an ozone generator's control circuit, include:
a main controller and a self-oscillation circuit;
the power supply input end of the main controller is used for connecting a power supply, and the boost control signal output end of the main controller is connected with the control signal input end of the self-excited oscillation circuit;
the power supply input end of the self-oscillation circuit is used for being connected with a power supply, and the self-oscillation circuit comprises a transformer, a first peripheral circuit on the input side of the transformer and a second peripheral circuit on the output side of the transformer; the first peripheral circuit is respectively connected with the control signal input end and the power supply, and the output end of the second peripheral circuit is a positive electrode plate and a negative electrode plate which are oppositely arranged; the self-oscillation circuit is used for boosting the voltage through the transformer and the first peripheral circuit and the second peripheral circuit thereof according to a control signal received from the main controller and combined with a voltage signal from the power supply to achieve the high voltage for generating the required ozone.
Further, the main controller comprises a first chip, a first resistor and a key;
Further, a first peripheral circuit of the self-oscillation circuit comprises a first triode, a second triode, a third resistor, a fourth resistor, a fifth resistor, a first capacitor, a second capacitor, a third capacitor, a fourth capacitor and a fifth capacitor; the base electrode of the first triode is connected with the control signal input end of the self-oscillation circuit through a third resistor, the emitting electrode of the first triode is grounded, and the collecting electrode of the first triode is connected with the emitting electrode of the second triode; the base electrode of the second triode is respectively connected with one end of a second capacitor and one end of a fourth resistor, the collector electrode of the second triode is connected with one end of the first capacitor in parallel and then connected into a pin 1 of the transformer, and the emitter electrode of the second triode is connected with the other end of the first capacitor in parallel and then connected into a connecting circuit between the second capacitor and a third capacitor; the other end of the third capacitor is respectively connected with a pin 2 of the transformer and a power supply input end of the self-oscillation circuit; one end of the fifth capacitor is connected with the power supply input end of the self-oscillation circuit, and the other end of the fifth capacitor is grounded; after the fourth capacitor and the fifth resistor are connected in parallel, one end of the fourth capacitor is connected to a pin 3 of the transformer, and the other end of the fourth capacitor is connected with the other end of the fourth resistor;
the second peripheral circuit of the self-oscillation circuit comprises a first diode, a second diode, a sixth capacitor, a seventh capacitor and an eighth capacitor; a pin 4 of the transformer is respectively connected with the anode of a second diode and the cathode of a first diode through a sixth capacitor, the anode of the first diode is connected with a positive electrode plate, the cathode of the second diode is connected with a negative electrode plate, and the negative electrode plate is connected to a pin 5 of the transformer; and the seventh capacitor and the eighth capacitor are connected in series and then connected to two ends of the positive electrode plate and the negative electrode plate in parallel.
Further, the main controller further comprises a state indicating circuit; the status indication circuit comprises a first light emitting diode and a second light emitting diode; the anodes of the first light-emitting diode and the second light-emitting diode are connected in parallel and then connected with the power input end of the main controller through a second resistor, the cathode of the first light-emitting diode is connected with the pin 12 of the first chip, and the cathode of the second light-emitting diode is connected with the pin 13 of the first chip.
The utility model provides an ozone generator's control circuit's theory of operation does:
(i) the control method comprises the steps that in a normal gear working mode, a control signal is generated by long pressing of a key for setting time, a first chip detects the control signal to control the key of a main controller to be switched on and enter an ozone normal gear mode, the first chip can be used for controlling a first light-emitting diode or/and a second light-emitting diode to display according to a set state, and a boost control signal output end is used for controlling a self-oscillation circuit to work periodically;
(ii) the first chip detects the control signal to control the key of the main controller to be switched on and enter an ozone conventional gear mode, the key is pressed again to enter an ozone first enhanced gear mode, the first chip can be used for controlling the first light-emitting diode or/and the second light-emitting diode to display according to a set state, and the self-oscillation circuit is controlled to periodically work through the output end of the boosting control signal; the first enhanced gear mode of operation may be achieved by extending the power-on time (i.e., extending the ozone generation time) as compared to the conventional mode of operation;
(iii) the first chip detects the control signal to control the key of the main controller to be switched on and enter an ozone conventional gear mode, the key is pressed again to enter an ozone first enhanced gear mode, the key is pressed again to enter an ozone second enhanced gear mode, the first chip can be used for controlling the first light-emitting diode or/and the second light-emitting diode to display according to a set state, and the boosting control signal output end outputs and controls the self-excited oscillation circuit to work for a long time; the second enhanced gear mode of operation can be achieved by extending the power-on time (i.e., extending the ozone generation time) as compared to the normal mode of operation and the first enhanced gear mode of operation;
(iv) and (4) shutting down, namely, generating a control signal when the key is pressed for a long time again to set time regardless of a conventional gear working mode or an enhanced gear working mode (including a first enhanced gear and a second enhanced gear), detecting the control signal by the first chip, switching off the key of the main controller, and shutting down all control outputs.
Compared with the prior art, the utility model discloses following beneficial effect has:
the utility model discloses utilize the button to realize the free switching of conventional shelves and reinforcement shelves to satisfy the demand of disinfecting under the unnecessary environment, operate convenient and fast more.
Drawings
Fig. 1 is a schematic diagram of a control circuit of the ozone generator of the present invention;
FIG. 2 is a schematic circuit diagram of a main controller in the control circuit of the ozone generator;
fig. 3 is a schematic circuit diagram of a self-oscillation circuit in a control circuit of the ozone generator.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
Example 1
Fig. 1 shows a schematic control circuit diagram of an ozone generator according to a first embodiment of the present invention. Referring to fig. 1, the control circuit of the ozone generator of the present invention comprises: a main controller and a self-oscillation circuit. The power input end of the main controller is used for being connected with a power supply, and the boost control signal output end of the main controller is connected with the control signal input end of the self-excited oscillation circuit.
Fig. 2 shows a circuit schematic of a main controller in the control circuit of the ozone generator. Referring to fig. 2, the main controller includes a first chip U1, a first resistor R1, and a key K1. A pin 1 of the first chip U1 is a power supply anode, is connected with a power supply input end VDD of the main controller and is connected with an external power supply; pin 2 of the first chip U1 is a CTRL _ HVCC network terminal, which is used for sterilization high-voltage boost control and is connected to a boost control signal output terminal of the main controller; a pin 3 of the first chip U1 is a KEY network terminal, is used for sterilization gear input, is connected with a power input terminal VDD of the main controller through a KEY K1 and a first resistor R1 in sequence, and provides 3.3V voltage for the main controller; the key K1 is used for generating a control signal to enable the first chip U1 to control on and off according to the control signal and control the working gear of the self-oscillation circuit. Pin 14 of the first chip U1 is the negative terminal of the power supply and is grounded. The other pins of the first chip U1 are left blank. The first chip U1 performs timing control through an internal RC oscillator, and performs timing and timing functions according to a reference time.
The power supply input end of the self-excited oscillation circuit is used for being connected with a power supply, and the self-excited oscillation circuit comprises a transformer, a first peripheral circuit on the input side of the transformer and a second peripheral circuit on the output side of the transformer; the first peripheral circuit is respectively connected with the control signal input end and the power supply, and the output end of the second peripheral circuit is a positive electrode plate and a negative electrode plate which are oppositely arranged. The self-oscillation circuit is used for boosting the voltage through the transformer and the first peripheral circuit and the second peripheral circuit thereof according to a control signal received from the main controller and combined with a voltage signal from the power supply to achieve the high voltage for generating the required ozone.
Fig. 3 shows a circuit schematic of a self-oscillating circuit in the control circuit of the ozone generator. Referring to fig. 3, the first peripheral circuit of the self-oscillation circuit includes a first transistor Q1, a second transistor Q2, a third resistor R3, a fourth resistor R4, a fifth resistor R5, a first capacitor C1, a second capacitor C6, a third capacitor C3, a fourth capacitor C4, and a fifth capacitor C5. The base electrode of the first triode Q1 is connected with the control signal input end CTRL _ HVCC of the self-oscillation circuit through a third resistor R3, the emitting electrode of the first triode Q1 is grounded, and the collecting electrode of the first triode Q1 is respectively connected with the emitting electrode of the second triode Q2; the base electrode of the second triode Q2 is respectively connected with one end of a second capacitor C6 and one end of a fourth resistor R4, the collector electrode of a second triode Q2 is connected with one end of a first capacitor C1 in parallel and then is connected to a pin 1 of a transformer T1, and the emitter electrode of a second triode Q2 is connected with the other end of the first capacitor C1 in parallel and then is connected to a connecting circuit between the second capacitor C2 and a third capacitor C3; the third capacitor C3 is a polar capacitor, and the other end of the third capacitor C3 is respectively connected with the pin 2 of the transformer T1 and the power supply input end of the self-oscillation circuit; one end of a fifth capacitor C5 is connected with a power supply input end VDD _2.8V of the self-oscillation circuit (providing 2.8V initial voltage for the self-oscillation circuit), and the other end is grounded; one end of the fourth capacitor C4 is connected to the pin 3 of the transformer T1 after being connected with the fifth resistor R5 in parallel, and the other end of the fourth capacitor C4 is connected with the other end of the fourth resistor R4; the second peripheral circuit of the self-oscillation circuit comprises a first diode D1, a second diode D2, a sixth capacitor C6, a seventh capacitor C7 and an eighth capacitor C8; a pin 4 of the transformer T1 is respectively connected with the anode of the second diode D2 and the cathode of the first diode D1 through a sixth capacitor C6, the anode of the first diode D1 is connected with the positive electrode plate HV +, the cathode of the second diode D2 is connected with the negative electrode plate HV-, and meanwhile, the negative electrode plate HV-is connected to a pin 5 of the transformer T1; the seventh capacitor C7 and the eighth capacitor C8 are connected in series and then connected in parallel to two ends of the positive electrode sheet HV + and the negative electrode sheet HV-.
The working principle of the control circuit of the ozone generator provided by the embodiment is described in detail below with reference to the accompanying drawings.
The main controller is used for controlling on-off control and working gears of the self-excited oscillation circuit according to control signals generated by key input; the self-oscillation circuit is used for boosting according to a boosting control signal output by the main controller, generating high voltage to be loaded to the positive and negative electrode plates in a self-oscillation mode, and loading the high voltage to ionize air between the positive and negative electrode plates to generate ozone. The method specifically comprises the following steps:
(1) and a normal gear working mode: starting to press a key for a long time of K13 seconds, generating a control signal and inputting the control signal to a pin 3 of a first chip U1, detecting the control signal by a first chip U1, controlling a main controller to be switched on and entering an ozone normal gear working mode, outputting a boosting control signal by a pin 2 of the first chip U1, and controlling a self-oscillation circuit to work periodically (for example, ozone works for 5 minutes and stops for 25 minutes) through a boosting control signal output end; the self-excited oscillation circuit receives a boosting control signal output by the main controller through the control signal input end, transmits a received 2.8V voltage signal to the low-voltage end of the transformer T1 after passing through the first peripheral circuit, loads an electric signal output by the high-voltage end of the transformer to electrode plates at two ends of HV + and HV-after passing through the second peripheral circuit to generate 2.6kV high voltage, and generates ozone for sterilization by ionizing air between the electrode plates.
(2) First reinforcement mode of operation: pressing the key K1 again after starting to press the key K13 for a long time to generate a control signal and input the control signal to a pin 3 of a first chip U1, detecting the control signal by the first chip U1 and then entering an ozone first enhancement working mode, outputting a boosting control signal by a pin 2 of the first chip U1, and controlling a self-oscillation circuit to work periodically (for example, ozone works for 10 minutes and stops for 20 minutes) through a boosting control signal output end; the self-excited oscillation circuit receives a boosting control signal output by the main controller through the control signal input end, transmits a received 2.8V voltage signal to the low-voltage end of the transformer T1 after passing through the first peripheral circuit, loads an electric signal output by the high-voltage end of the transformer to electrode plates at two ends of HV + and HV-after passing through the second peripheral circuit to generate 2.6kV high voltage, and generates ozone for sterilization by ionizing air between the electrode plates.
(3) Second reinforcement mode of operation: pressing the key K1 twice continuously after starting to press the key K13 for a long time to generate a control signal and input the control signal to a pin 3 of a first chip U1, and entering an ozone second enhancement mode after detecting the control signal by the first chip U1; pin 2 of the first chip U1 continuously outputs a boost control signal, and the self-oscillation circuit is controlled to continuously work through the boost control signal output end; the self-excited oscillation circuit receives a boosting control signal output by the main controller through the control signal input end, transmits a received 2.8V voltage signal to the low-voltage end of the transformer T1 after passing through the first peripheral circuit, loads an electric signal output by the high-voltage end of the transformer to electrode plates at two ends of HV + and HV-after passing through the second peripheral circuit to generate 2.6kV high voltage, and generates ozone for sterilization by ionizing air between the electrode plates.
(4) And (3) shutting down, namely, in a normal gear working mode or an enhanced gear working mode, after the sterilization work is finished, pressing the key K13 for a long time again to generate a control signal and input the control signal to the pin 3 of the first chip U1, and switching off the key of the main controller and shutting down all control outputs.
Example 2
This embodiment is a further improvement of the main controller based on the control circuit of the ozone generator given in embodiment 1.
Referring to fig. 2, the main controller provided in this embodiment further includes a status indication circuit.
The state indicating circuit comprises a first light emitting diode, a second light emitting diode and a second resistor R2; one end of a second resistor R2 is connected with a power input end VDD of the main controller, the other end of the second resistor R2 is respectively connected with anodes of a first light-emitting diode and a second light-emitting diode, a cathode of the first light-emitting diode is connected with a pin 12 of the first chip U1, and a cathode of the second light-emitting diode is connected with a pin 13 of the first chip U1. A two-color LED indicator light is used to indicate the different states.
The operation principle of the status indication circuit in the control circuit of the ozone generator will be described in detail with reference to fig. 2.
The first light-emitting diode adopts a red light-emitting diode, and the second light-emitting diode adopts a green light-emitting diode. By the first light emitting diode or/and the second light emitting diode being lit, different operating states can be indicated, for example:
(1) when the first chip U1 controls the key K1 of the main controller to be switched on and enters the normal gear working mode, the pin 13 of the first chip U1 controls the second light-emitting diode to be turned on (the indicator light displays green), and the second light-emitting diode is turned on for 1 second and turned off for 3 seconds, so that the state of the normal gear working mode is prompted.
(2) When the first chip U1 controls to enter the first enhanced ozone mode, the pin 12 of the first chip U1 controls the first light emitting diode and the pin 13 controls the second light emitting diode to be simultaneously on (the indicator light displays orange), and the light is turned off for 1 second and 3 seconds, so as to prompt the first enhanced ozone mode.
(3) When the first chip U1 controls to enter the second enhanced working mode of ozone, the pin 13 of the first chip U1 controls and the second light-emitting diode to be normally on (the indicator light is green), so that the state of the second enhanced working mode is prompted.
It will be appreciated by those of ordinary skill in the art that the embodiments described herein are intended to assist the reader in understanding the principles of the invention, and it is to be understood that the scope of the invention is not limited to such specific statements and embodiments. Those skilled in the art can make various other specific modifications and combinations based on the teachings of the present invention without departing from the spirit of the invention, and such modifications and combinations are still within the scope of the invention.
Claims (4)
1. A control circuit for an ozone generator, comprising:
a main controller and a self-oscillation circuit;
the power supply input end of the main controller is used for connecting a power supply, and the boost control signal output end of the main controller is connected with the control signal input end of the self-excited oscillation circuit;
the power supply input end of the self-oscillation circuit is used for being connected with a power supply, and the self-oscillation circuit comprises a transformer, a first peripheral circuit on the input side of the transformer and a second peripheral circuit on the output side of the transformer; the first peripheral circuit is respectively connected with the control signal input end and the power supply, and the output end of the second peripheral circuit is a positive electrode plate and a negative electrode plate which are oppositely arranged; the self-oscillation circuit is used for boosting the voltage through the transformer and the first peripheral circuit and the second peripheral circuit thereof according to a control signal received from the main controller and combined with a voltage signal from the power supply to achieve the high voltage for generating the required ozone.
2. The control circuit of an ozone generator as claimed in claim 1,
the main controller comprises a first chip, a first resistor and a key;
pin 1 of the first chip is connected with a power input end of the main controller, pin 2 of the first chip is connected with a boost control signal output end of the main controller, pin 3 of the first chip is connected with the power input end of the main controller sequentially through a key and a first resistor, and pin 14 of the first chip is grounded.
3. The control circuit of an ozone generator as claimed in claim 1 or 2,
the first peripheral circuit of the self-oscillation circuit comprises a first triode, a second triode, a third resistor, a fourth resistor, a fifth resistor, a first capacitor, a second capacitor, a third capacitor, a fourth capacitor and a fifth capacitor; the base electrode of the first triode is connected with the control signal input end of the self-oscillation circuit through a third resistor, the emitting electrode of the first triode is grounded, and the collecting electrode of the first triode is connected with the emitting electrode of the second triode; the base electrode of the second triode is respectively connected with one end of a second capacitor and one end of a fourth resistor, the collector electrode of the second triode is connected with one end of the first capacitor in parallel and then connected into a pin 1 of the transformer, and the emitter electrode of the second triode is connected with the other end of the first capacitor in parallel and then connected into a connecting circuit between the second capacitor and a third capacitor; the other end of the third capacitor is respectively connected with a pin 2 of the transformer and a power supply input end of the self-oscillation circuit; one end of the fifth capacitor is connected with the power supply input end of the self-oscillation circuit, and the other end of the fifth capacitor is grounded; after the fourth capacitor and the fifth resistor are connected in parallel, one end of the fourth capacitor is connected to a pin 3 of the transformer, and the other end of the fourth capacitor is connected with the other end of the fourth resistor;
the second peripheral circuit of the self-oscillation circuit comprises a first diode, a second diode, a sixth capacitor, a seventh capacitor and an eighth capacitor; a pin 4 of the transformer is respectively connected with the anode of a second diode and the cathode of a first diode through a sixth capacitor, the anode of the first diode is connected with a positive electrode plate, the cathode of the second diode is connected with a negative electrode plate, and the negative electrode plate is connected to a pin 5 of the transformer; and the seventh capacitor and the eighth capacitor are connected in series and then connected to two ends of the positive electrode plate and the negative electrode plate in parallel.
4. The control circuit of an ozone generator as claimed in claim 2,
the main controller further comprises a state indicating circuit; the status indication circuit comprises a first light emitting diode and a second light emitting diode; the anodes of the first light-emitting diode and the second light-emitting diode are connected in parallel and then connected with the power input end of the main controller through a second resistor, the cathode of the first light-emitting diode is connected with the pin 12 of the first chip, and the cathode of the second light-emitting diode is connected with the pin 13 of the first chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921858390.0U CN210573314U (en) | 2019-10-31 | 2019-10-31 | Control circuit of ozone generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921858390.0U CN210573314U (en) | 2019-10-31 | 2019-10-31 | Control circuit of ozone generator |
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| Publication Number | Publication Date |
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| CN210573314U true CN210573314U (en) | 2020-05-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921858390.0U Active CN210573314U (en) | 2019-10-31 | 2019-10-31 | Control circuit of ozone generator |
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| CN (1) | CN210573314U (en) |
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- 2019-10-31 CN CN201921858390.0U patent/CN210573314U/en active Active
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