CN210812740U - Refrigerator plasma sterilization and deodorization device and control circuit thereof - Google Patents
Refrigerator plasma sterilization and deodorization device and control circuit thereof Download PDFInfo
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- CN210812740U CN210812740U CN201920698678.XU CN201920698678U CN210812740U CN 210812740 U CN210812740 U CN 210812740U CN 201920698678 U CN201920698678 U CN 201920698678U CN 210812740 U CN210812740 U CN 210812740U
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
- F25D17/042—Air treating means within refrigerated spaces
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Abstract
The utility model discloses a refrigerator-freezer plasma deodorizing device and control circuit that disinfects, including the shell with arrange the high-pressure discharge subassembly in the shell in, the high-pressure discharge subassembly is by power module, control module, high pressure produces the module, display module constitutes, still include the ozone generation module and the wireless monitoring module who are connected with control module, the high-pressure discharge subassembly is including the circuit board that has integrateed each module circuit again, high pressure produces the module and includes the potsherd, the discharge needle, wireless monitoring module includes the ozone sensor, wherein the circuit board is located in the relative confined cavity of shell, the ozone sensor is placed in the shell with the discharge needle, and through-hole and external intercommunication that are equipped with through the shell. The utility model discloses utilize positive and negative ion and ozone that the high-voltage discharge principle produced to kill the bacterium in the refrigerator-freezer effectively and get rid of the foul smell, each corner in the refrigerator-freezer is reachd effectively in the diffuse diffusion of positive and negative ion and ozone, has solved the defect that the illumination disinfected well.
Description
Technical Field
The utility model relates to a plasma generating device for sterilization and deodorization in a freezer and a control circuit thereof.
Background
The refrigerator is used for storing food at low temperature, the temperature in the refrigerator is low, air is not circulated, bacteria are easy to breed, and odor is easy to produce and is not easy to discharge (the main component of the odor is NH)3And H2S); so that the environment in the refrigerator cannot be improved, and the decomposition and deterioration of food in the refrigerator can be accelerated, the most common 'psychrophilic bacteria' in the refrigerator comprise yeri type bacteria and listeria which can cause various diseases and harm the human health, therefore, the refrigerator needs to be cleaned and disinfected regularly, the refrigerator needs to be cleaned, disinfected and disinfected at least every week, the method needs to be correct, the conventional parts in the refrigerator are cleaned and disinfected, high-efficiency special disinfectant for the refrigerator needs to be paid attention to spray and disinfect dead corners such as a drip groove, a partition plate groove and the like of the refrigerator, after the inner wall and the dead corners of the refrigerator are sprayed, the refrigerator needs to be closed for 5-10 minutes to be fully sterilized and then cleaned by using cleaning cloth, the special disinfectant needs to be adopted during each cleaning, the required cost is high, the cleaning process is very complicated, and a large amount of time needs to be consumed, before washing, can have a large amount of bacteriums in the refrigerator-freezer, can arouse multiple diseases, in addition, refrigerator-freezer manufacturer also has to disinfect, deodorization, fresh-keeping through using ultraviolet lamp (UV lamp), and this kind of mode reaches the purpose through the direct projection of light, even UV lamp is placed to each corner multi-angle in the refrigerator-freezer, also can be because in the refrigerator-freezerThe quantity of the stored food is large, the production dead angle is caused, the effect is not good, and the ultraviolet rays are harmful to the human body.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a solution through plasma deodorization of disinfecting.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a refrigerator-freezer plasma deodorizing device that disinfects, include the shell and arrange the high voltage discharge subassembly in the shell in, the high voltage discharge subassembly is by power module, a control module, high voltage produces the module, the display module is constituteed, still include ozone generation module and the wireless monitoring module of being connected with control module, the high voltage discharge subassembly is including the circuit board of each module circuit of having integrateed again, high voltage produces the module and includes the potsherd, the discharge needle, wireless monitoring module includes the ozone sensor, wherein the circuit board is located in the relative confined cavity of shell, ozone sensor and discharge needle are placed in the shell, and through-hole and external intercommunication that are equipped with through the shell.
The ozone sensor is arranged in the space close to the shell cover at the upper part of the right space, and the ceramic chip and the discharge needle are arranged at the lower part of the right space.
The shell comprises a shell cover and a shell body, wherein buckling legs are arranged on the periphery of the shell cover and connected with the inner wall of the shell body in a buckling mode, the shell further comprises an air outlet net, and the air outlet net is tightly attached to the bottom surface of the shell cover.
The utility model also provides a control circuit of the refrigerator plasma sterilization and deodorization device, which comprises a power module, a control module, a high-voltage generation module, an ozone generation module, a display module and a wireless monitoring module, wherein the output end of the power module is connected with the wireless monitoring module and the control module for power supply, the wireless monitoring module is connected with the control module, and the output end of the control module is connected with the input ends of the high-voltage generation module, the ozone generation module and the display module;
the power module comprises a chip U1 and a chip U2, a pin 6 of a chip U1 is connected with a 24V power input end, a pin 5 of a chip U1 is connected with a capacitor C1 in series and grounded, a pin 2 of the chip U1 is connected with an inductor L1 in series and connected with a pin 1 of the chip U2, an output end of a capacitor C1 is connected with a resistor R1 and a resistor R2 in series and then connected with a +15V power supply end after being connected with an output end of an inductor L1, two ends of a resistor R1 and a resistor R2 are connected with a capacitor C2 in parallel, an output end of a capacitor C1 is connected with an input end of a diode D1 and then connected with an inductor L1, an input end of a chip U2 is connected with a capacitor C3 which is grounded, an output end of a chip U2 is connected with a +5V power output end, an;
the control module comprises a chip U3, a chip U4 and a pin bank J1, a pin 21 of the chip U3 is connected with a pin 3 of a resistor R3 and a pin 3 of a pin bank J1 in series, a pin 24 of the chip U3 is connected with a pin 4 of a resistor R4 and a pin bank J1 in series, the output end of the resistor R4 is connected with a pin 1 of the pin bank J1 of the resistor R5, and the output end of the resistor R5 is connected with a +5V power supply end; the pin 1 and the pin 8 of the chip U4 are both connected with a +15V power supply end, the pin 2 of the chip U4 is connected with the pin 10 of the chip U3, the pin 3 of the chip U4 is connected with the pin 1 of the chip U3, and the pin 4 and the pin 6 of the chip U4 are grounded;
the high voltage generation module comprises a transformer T1 and a field effect transistor Q1, a pin 1 of the transformer T1 is connected with a capacitor C6 in series to be connected with the input end of a positive power supply, a pin 2 of the transformer T1 is connected with a diode D2 in series to be connected with the input end of a negative power supply, and the output end of a diode D2 is connected with a diode D3 in series to be connected with the input end of the capacitor C6; a pin 4 of the transformer T1 is connected with a collector of a field-effect tube Q1, an emitter of the field-effect tube Q1 is grounded, a base of the field-effect tube Q1 is connected with a resistor R6 in series and is connected with a discharging terminal, and an input end of a resistor R6 is connected with a resistor R7 in series and is grounded;
the ozone generation module comprises a transformer T2 and a field effect transistor Q2, wherein a pin 1 of a transformer T2 is connected with an anode power supply input terminal, a pin 2 of a transformer T2 is connected with a cathode power supply input terminal, a pin 4 of a transformer T2 is connected with a collector of a field effect transistor Q2, an emitter of the field effect transistor Q2 is grounded, a base of the field effect transistor Q2 is connected with a resistor R8 in series to be connected with a discharging terminal, and an input end of a resistor R8 is connected with a resistor R9 to be grounded;
the display module comprises a light emitting diode D4-a light emitting diode D6 and a resistor R10-a resistor R12, wherein the input ends of the light emitting diode D4-a light emitting diode D6 are connected with a +5V power supply end, the output end of the light emitting diode D4 is connected with the resistor R10 in series and is connected with a pin 13 of a chip U3, the output end of the light emitting diode D5 is connected with the resistor R11 in series and is connected with a pin 14 of the chip U3, and the output end of the light emitting diode D6 is connected with the resistor R12 in series and is connected with;
the wireless monitoring module comprises a pin bank J2, a resistor R13, a capacitor C7-a capacitor C9, a pin 1 of the pin bank J2 is connected with the capacitor C7 in series and grounded, a pin 2 of the pin bank J2 is connected with the capacitor C8 in series and grounded, the input end of the capacitor C8 is connected with a +5V power supply end, a pin 3 of the pin bank J2 is grounded, two ends of the capacitor C8 are connected with the capacitor C9 in parallel, and the input end of the capacitor C9 is connected with a resistor R13 and a pin 10 of a chip U3.
Preferably, the model of the chip U1 is 34063, the model of the chip U2 is 7805, and the model of the chip U4 is IT 2104.
Preferably, the chip U3 is controlled by a microcomputer program.
The utility model provides a refrigerator-freezer plasma deodorizing device and control circuit that disinfects utilizes the positive and negative ion and the ozone that the high-pressure discharge principle produced to kill the bacterium in the refrigerator-freezer effectively and get rid of the foul smell, because each corner in the diffuse diffusion of positive and negative ion and ozone reachs the refrigerator-freezer effectively, has solved the defect of illumination condition well. In addition, compared with the prior art, the control circuit of the refrigerator plasma sterilization and deodorization device provided by the utility model supplies power for the work of the control module and the wireless monitoring module through the power module; the transformer T1 of the high-voltage generation module boosts the input wide voltage to generate high voltage, the high-voltage discharge voltage is +/-12 kv, and the control module controls the field-effect tube Q1 to be continuously conducted to the needle point of the discharge needle for condensation discharge; the transformer T2 of the ozone generation module boosts the input wide voltage to generate high voltage, the high voltage discharge voltage is +/-12 kv, the control module controls the field effect tube Q2 to work in a clearance way, the needle point of the discharge needle discharges electricity under the high voltage, oxygen molecules in the air are forced to separate and recombine to form trace ozone, when the ozone concentration exceeds 0.1ppm, the control module controls the ozone generation module to stop working, when the ozone concentration is lower than 0.1ppm, the control module controls the ozone generation module to work, positive and negative ions are carried by water vapor and float to the periphery of bacteria and ozone molecules, the positive and negative ions absorb hydrogen atoms in the bacteria and odor molecules and combine with the positive and negative ions to form hydroxyl groups, the hydroxyl groups can be combined with the hydrogen atoms on the periphery again under the action of the peripheral molecules to form water molecules, and the bacteria and odor molecules can be decomposed and die after the hydrogen atoms are lost, thereby achieving the effects of sterilization, deodorization and fresh-keeping, and the micro ozone generated in the process can accelerate the process and solve the problem in the freezer in the non-toxic and harmless environment; high overall sterilizing efficiency, no toxicity and no harm.
Drawings
FIG. 1 is an exploded view of the plasma sterilization and deodorization device of the refrigerator of the present invention;
FIG. 2 is a plasma discharge with water molecules broken down;
FIG. 3 shows that positive and negative ions are propagated in air by using water vapor as a medium;
FIG. 4 shows the ion clusters impinging on the bacteria and odor molecules;
FIG. 5 shows the ion clusters colliding with bacteria and odor molecules to form OH;
FIG. 6 shows the H atoms of the bacteria and odor molecules being captured to inactivate the bacteria and to deodorize the odor;
fig. 7 is a schematic block diagram of the circuit of the present invention;
fig. 8 is a power supply circuit diagram of the present invention;
fig. 9 is a circuit diagram of a control module of the present invention;
fig. 10 is a circuit diagram of a high voltage generating module of the present invention;
FIG. 11 is a circuit diagram of the ozone generation circuit of the present invention;
fig. 12 is a circuit diagram of a display module according to the present invention;
fig. 13 is a block diagram of the wireless monitoring system of the present invention.
Detailed Description
The technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiment of the present invention.
As shown in fig. 1 and 7, the plasma sterilization and deodorization device for the refrigerator comprises a housing 10 and a high-voltage discharge assembly arranged in the housing 10, wherein the high-voltage discharge assembly comprises a power module 1, a control module 2, a high-voltage generation module 3 and a display module 5, and further comprises an ozone generation module 4 and a wireless monitoring module 6 which are connected with the control module 2, wherein the high-voltage discharge assembly further comprises a circuit board 21 integrated with each module circuit, the high-voltage generation module 3 comprises a ceramic wafer and a discharge needle, the wireless monitoring module 6 comprises an ozone sensor 22, and the wireless monitoring module 6 means: the state of the machine can be fed back to the client in real time through wireless transmission, the operation of the machine can be controlled in real time through the client, and the ozone sensor is a feedback module. The housing 10 includes a housing cover 11 and a housing 12, the housing cover 11 is provided with a fastening pin 13 at its periphery for fastening connection with the inner wall of the housing 12, the housing 12 is provided with a vertical baffle 14 to divide the housing into two parts, as shown in fig. 1, namely a left space and a right space, the left space is a relatively closed cavity 15 for placing a circuit board 21, the lower part of the right space is used for placing a ceramic chip and a discharge needle, the upper part of the right space is used for placing an ozone sensor 22, the ozone sensor 22 and the discharge needle are arranged in the shell 10 and communicated with the outside through a through hole arranged on the shell 10, in order to facilitate cleaning and maintenance, the air outlet net 30 is further included in the embodiment, the air outlet net 30 is tightly attached to the bottom surface of the shell cover 11, a plurality of rows of through holes 31 with regular shapes are arranged on the air outlet net 30, the shell cover 11 is hollowed out corresponding to the through holes 31, and meanwhile, in order to strengthen air convection, a plurality of through holes 17 are formed in the two sides of the shell of the cavity 16 where the discharge needles are located; in addition, for more accurate monitoring data of ozone sensor 22, it can be placed outside the housing and located at other positions in the refrigerator.
The above device is placed in a freezer, and the sterilization and deodorization process is explained in detail by the working principle and the working method.
The mechanism of negative corona formation is explained according to the Thomson discharge theory. For negative corona discharge, free electrons emitted from the cathode move directionally along the direction of an electric field under the action of the electric field force, and collide with molecules or atoms in the air in the moving process. After the molecules or atoms are dissociated, new electrons are generated and continue to move along the direction of the electric field together with the original electrons under the action of the electric field force, and new dissociation is caused. When the electric field strength exceeds a certain critical value, the electron beam increases sharply. Under the action of the electric field force, electrons develop in the direction of the principle cathode conductor.
Under the Thonson discharge theory, if a uniform field is assumed everywhere, the charged particle motion is mainly directed motion, the spatial composition and the container wall composition are not considered, the impact ionization of positive ions in the space is neglected, and the magnitude of the discharge current can be expressed as:
Iofor saturation current, αTThe Thonsen ionization coefficient is defined as the average number of ionizing collisions that electrons produce in the direction of the electric field through a distance of 1 CM.
For αTThe air pressure p and the field strength E can be calculated. If it is assumed that the electrons are mainly moving in a direction in the gas and the excited collisions are neglected, the relationship is given by
αTIt can also be calculated by the following formula
Wherein A, B is a constant related to gas properties. P is air pressure, d is inter-electrode distance, v is voltage
The electrons collide with molecules or atoms, the electrons generated by the collision move to the anode, and the remaining positive ions slowly move to the cathode under the action of the electric field force. When the voltage is increased to such an extent that these positive ions reach the cathode, new electrons are generated at the cathode surface. This is the cathode secondary electron emission. The new electrons will move to the anode under the action of the electric field, and then electron collapse is generated, and the above process is repeated.
Under corona discharge, air is dissociated into plasma. There are generally six types of particles in low temperature plasma discharge: photons, electrons, ground state particles, positive and negative ions, excited state particles, various particles can collide and interact with each other, and further influence other particles.
Elastic collisions, in which only the particle velocity is changed and the potential energy of the particles involved in the collision is not changed, and therefore atoms or molecules cannot be excited or dissociated and do not contribute to the chemical reaction, and inelastic collisions are the two main types of particle collisions. In inelastic collisions, the total momentum between particles is not constant, but the total kinetic energy is not conserved. I.e. the energy of at least one particle is changed.
There are several forms of plasma collisions, mainly classified into three types:
excitation: after the inelastic collision of the electron or the photon, the atom or the molecule can absorb the kinetic energy of the electron and the energy of the photon, so that the internal energy of the atom and the molecule is increased, and the absorbed energy enables the electron in the atom to transit from a low energy level to a high energy level. This process is called excitation of atoms.
Ionization: atoms or molecules can absorb their energy when they collide with electrons, neutrals, or photons. When more energy is absorbed in the collision than is needed to transition to the outermost level, the electron can escape the confinement of the nucleus and become a free electron. This process is called ionization.
Compounding: the positively charged particles and negatively charged particles also collide. The positive charged particles and the negative charged particles form new particles which are electrically neutral.
The three principles are being applied in ion sterilization, deodorization and fresh-keeping.
With reference to fig. 2-6, at high voltage at the tip, oxygen molecules in the air are forced to separate and recombine to form a trace of ozone. The positive and negative ions are carried by the water vapor and float to the surrounding of the bacteria and odor molecules. The positive and negative ions absorb hydrogen atoms in bacteria and odor molecules and combine with the hydrogen atoms to form hydroxyl groups, and the hydroxyl groups can be combined with the surrounding hydrogen atoms again under the action of surrounding molecules to form water molecules. While bacteria and odor molecules will decompose and die after losing hydrogen atoms. Thereby achieving the effects of sterilization, deodorization and fresh-keeping.
Wherein the oxygen molecule is normally composed of two oxygen atoms. Valence bond theory considers that oxygen molecules are combined by two oxygen atoms in the form of a double bond. Its structural formula is denoted: o ═ O
When ionization occurs, oxygen is ionized by collisions with electrons. Oxygen has ionization energies as high as 12eV, and most of the ionization is indirect.
When the energy is greater than 17eV, oxygen can be directly ionized. The product thereof is O+And O-
O2+e→O++O-
When dissociation occurs, oxygen atoms may be generated by the adsorption effect of the dissociation of the oxygen molecules
e+O2→O2 -→O-+O
Oxygen atoms can also be generated by isocharge dissociation
e+O2→e+2O
When recombination occurs, oxygen molecules can recombine with electrons, but a third party M needs to participate. The product of the recombination being an ionic O- 2
e+O2+M→O2 -+M
Positive hydrogen ions can also be obtained by the same principle
The structural formula of the water is H-O-H
Upon plasma discharge, water molecules are decomposed into H+And O2-Then the positive and negative ions are spread to the air by taking water vapor as a medium, ion groups form OH groups after impacting bacteria and odor molecules, H atoms of the bacteria and the odor molecules are captured, and the bacteria are not activated and the odor is odorless.
The control circuit of the plasma sterilization and deodorization device for the refrigerator will be described with reference to fig. 7-13, which includes a power module 1, a control module 2, a high voltage generation module 3, an ozone generation module 4, a display module 5 and a wireless monitoring module 6, wherein the output end of the power module 1 is connected with the wireless monitoring module 6 and the control module 2 for power supply, the wireless monitoring module 6 is connected with the control module 2, the wireless monitoring module 6 and the control module 2 send signals to each other, the wireless monitoring module 6 sends signals to the control module 2, the control module 2 can also send signals to the wireless monitoring module 6, the output end of the control module 2 is connected with the input ends of the high voltage generation module 3, the ozone generation module 4 and the display module 5, and the control module 2 controls the high voltage generation module 3, the ozone generation module 4 and the display module 5;
the power module 1 comprises a chip U1 and a chip U2, the model of the chip U1 is 34063, the model of the chip U2 is 7805, a pin 6 of the chip U1 is connected with a 24V power input end, a pin 5 of the chip U1 is connected with a capacitor C1 in series and grounded, a pin 2 of the chip U1 is connected with an inductor L1 in series and connected with a pin 1 of the chip U2, an output end of a capacitor C1 is connected with a resistor R1 and a resistor R2 in series and connected with an output end of the inductor L1 and then connected with a +15V power supply end, two ends of the resistor R1 and the resistor R2 are connected with a capacitor C2 in parallel, an output end of the capacitor C2 is connected with an input end of the inductor L2 after being connected with a diode D2, an input end of the chip U2 is connected with a capacitor C2 grounded, an output end of the chip U2 is connected with a +5V power output end; after the pin 6 of the chip U1 is connected with the input end of the power supply, the chip U1 is a single-chip bipolar linear integrated circuit through a 34063 chip, the single-chip bipolar linear integrated circuit is specially used for a direct current-direct current converter control part and used for inputting stable direct current, the chip U2 is a three-terminal voltage stabilization integrated circuit, and the direct current after direct current-direct current conversion is output through the voltage stabilization of the chip U2 and is supplied with power for the work of the wireless monitoring module 6 and the control module 2 by a +5V power.
The control module 2 comprises a chip U3, a chip U4 and a pin bank J1, the model of the chip U4 is IT2104, a pin 21 of the chip U3 is connected with a resistor R3 in series to be connected with a pin 3 of the pin bank J1, a pin 24 of the chip U3 is connected with a resistor R4 in series to be connected with a pin 4 of the pin bank J1, the output end of the resistor R4 is connected with a resistor R5 to be connected with a pin 1 of the pin bank J1, and the output end of the resistor R5 is connected with a +5V power supply end; the pin 1 and the pin 8 of the chip U4 are both connected with a +15V power supply end, the pin 2 of the chip U4 is connected with the pin 10 of the chip U3, the pin 3 of the chip U4 is connected with the pin 1 of the chip U3, the pin 4 and the pin 6 of the chip U4 are grounded, and the chip U3 is controlled by a microcomputer program and controls the work of the chip U3 by the microcomputer program; the control module 2 controls the high voltage generation module 3, the ozone generation module 4 and the display module 5 to work,
the high voltage generation module 3 comprises a transformer T1 and a field effect transistor Q1, a pin 1 of the transformer T1 is connected with a capacitor C6 in series to be connected with the input end of a positive power supply, a pin 2 of the transformer T1 is connected with a diode D2 in series to be connected with the input end of a negative power supply, and the output end of a diode D2 is connected with a diode D3 in series to be connected with the input end of the capacitor C6; a pin 4 of the transformer T1 is connected with a collector of a field-effect tube Q1, an emitter of the field-effect tube Q1 is grounded, a base of the field-effect tube Q1 is connected with a resistor R6 in series and is connected with a discharging terminal, and an input end of a resistor R6 is connected with a resistor R7 in series and is grounded; the input end of the transformer T1 is connected with wide voltage input, the high voltage reaches a high voltage of several kilovolts after the transformer T1 is boosted, the high voltage is condensed at a discharge terminal (needle point) connected with a resistor R6, and the controller 2 controls the field effect transistor Q1 to be continuously conducted to release the high voltage;
the ozone generation module 4 comprises a transformer T2 and a field effect transistor Q2, wherein a pin 1 of the transformer T2 is connected with an anode power supply input terminal, a pin 2 of the transformer T2 is connected with a cathode power supply input terminal, a pin 4 of the transformer T2 is connected with a collector of the field effect transistor Q2, an emitter of the field effect transistor Q2 is grounded, a base of the field effect transistor Q2 is connected with a resistor R8 in series to be connected with a discharging terminal, and an input end of the resistor R8 is connected with a resistor R9 to be grounded; the input end of the transformer T2 is connected with wide voltage input, the high voltage of several kilovolts is reached after the voltage of the transformer T2 is boosted, the resistor R8 is connected with a discharging terminal (needle point) for condensation, oxygen molecules in the air are forced to be separated and recombined under the high voltage of the needle point to form micro ozone, and the control module 2 controls the field effect transistor Q2 to work intermittently to generate the ozone;
the display module 5 comprises a light emitting diode D4-a light emitting diode D6 and a resistor R10-a resistor R12, wherein the input ends of the light emitting diode D4-a light emitting diode D6 are connected with a +5V power supply end, the output end of the light emitting diode D4 is connected with the resistor R10 in series and is connected with a pin 13 of the chip U3, the output end of the light emitting diode D5 is connected with the resistor R11 in series and is connected with a pin 14 of the chip U3, and the output end of the light emitting diode D6 is connected with the resistor R12 in series and is connected with; the control module 2 controls the on and off of the light emitting diode D4-the light emitting diode D6 to display the working state, and the accessed resistor R10-the resistor R12 play a role in protecting the circuit;
the wireless monitoring module 6 comprises a pin bank J2, a resistor R13, a capacitor C7-a capacitor C9, a pin 1 of the pin bank J2 is connected in series with the capacitor C7 and grounded, a pin 2 of the pin bank J2 is connected in series with the capacitor C8 and grounded, the input end of the capacitor C8 is connected with a +5V power supply end, a pin 3 of the pin bank J2 is grounded, two ends of the capacitor C8 are connected with the capacitor C9 in parallel, and the input end of the capacitor C9 is connected with the resistor R13 and connected with a pin 10 of a chip U3, so that the work of the control module 2.
The control circuit of the refrigerator plasma sterilization and deodorization device processes the input power through the power module 1, the processed output power supplies power for the work of the control module 2 and the wireless monitoring module 6, high voltage is generated through the boosting action of a transformer T1 of the high voltage generation module 3, the high voltage discharge voltage is +/-12 kv, a discharge terminal connected with a resistor R6 in series at the base of a field effect tube Q1 is a discharge needle, the high voltage is condensed at the needle tip, and the air is ionized at high voltage to generate positive and negative ions; generating high voltage through the boosting action of a transformer T2 of the ozone generating module 4, wherein the high voltage discharge voltage is +/-12 kv, the discharge terminal connected with a resistor R8 in series with the base of a field-effect tube Q2 is a discharge needle, under the high voltage, oxygen molecules in the air are forced to be separated and recombined to form a trace amount of ozone, wherein the high voltage generating module 3 is continuously conducted to generate high voltage discharge, the control module 2 controls the conducting voltage of the field-effect tube Q2 of the ozone generating module 4 to intermittently work to generate ozone, when the concentration of the ozone exceeds 0.1ppm, the control module 2 controls the ozone generating module 4 to stop working, when the concentration of the ozone is lower than 0.1ppm, the control module 2 controls the ozone generating module 4 to work, positive and negative ions float to the periphery of bacteria and ozone molecules under the carrying of water vapor, the positive and negative ions absorb hydrogen atoms in the bacteria and odor molecules and are combined with the positive and negative ions to form hydroxyl groups, the hydroxyl radical can be combined with the surrounding hydrogen atoms again under the action of the surrounding molecules to form water molecules; the bacteria and odor molecules can be decomposed and die after losing hydrogen atoms, so that the effects of sterilization, deodorization and freshness preservation are achieved, the process can be accelerated by the trace ozone generated in the process, and the problem in the freezer is solved in a non-toxic and harmless environment.
To sum up, the control circuit of the refrigerator plasma sterilization and deodorization device provided by the utility model supplies power for the work of the control module 2 and the wireless monitoring module 6 through the power module 1; the transformer T1 of the high-voltage generation module 3 boosts the input wide voltage to generate high voltage, the high-voltage discharge voltage is +/-12 kv, and the control module 2 controls the field-effect tube Q1 to be continuously conducted to condense and discharge at the needle point of the discharge needle; the transformer T2 of the ozone generation module 4 boosts the input wide voltage to generate high voltage, the high voltage discharge voltage is + -12 kv, the control module 2 controls the field effect tube Q2 to work intermittently, the needle point of the discharge needle discharges electricity under the high voltage, oxygen molecules in the air are forced to separate and recombine to form micro ozone, when the ozone concentration exceeds 0.1ppm, the control module 2 controls the ozone generation module 4 to stop working, when the ozone concentration is lower than 0.1ppm, the control module 2 controls the ozone generation module 4 to work, positive and negative ions drift to the periphery of bacteria and ozone molecules under the carrying of water vapor, the positive and negative ions absorb hydrogen atoms in the bacteria and odor molecules and combine with themselves to form hydroxyl groups, the hydroxyl groups can be combined with the hydrogen atoms around under the action of the molecules around to form water molecules, and the bacteria and odor molecules can be decomposed and die after losing the hydrogen atoms, thereby achieving the effects of sterilization, deodorization and fresh-keeping, and the micro ozone generated in the process can accelerate the process and solve the problem in the freezer in the non-toxic and harmless environment; high overall sterilizing efficiency, no toxicity and no harm.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (6)
1. The utility model provides a refrigerator-freezer plasma deodorizing device's control circuit that disinfects which characterized in that: the device comprises a power supply module, a control module, a high-voltage generation module, an ozone generation module, a display module and a wireless monitoring module, wherein the output end of the power supply module is connected with the wireless monitoring module and the control module for power supply, the wireless monitoring module is connected with the control module, and the output end of the control module is connected with the input ends of the high-voltage generation module, the ozone generation module and the display module;
the power module comprises a chip U1 and a chip U2, a pin 6 of the chip U1 is connected with a 24V power input end, a pin 5 of the chip U1 is connected with a capacitor C1 in series and grounded, a pin 2 of the chip U1 is connected with an inductor L1 in series and connected with a pin 1 of the chip U2, an output end of a capacitor C1 is connected with a resistor R1 and a resistor R2 in series and connected with a +15V power supply end after being connected with an output end of an inductor L1, two ends of a resistor R1 and a resistor R2 are connected with a capacitor C2 in parallel, an output end of a capacitor C1 is connected with an input end of an inductor L1 after being connected with a diode D1, an input end of a chip U2 is connected with a capacitor C3 which is grounded, an output end of a chip U2 is connected with a +5V power output end, an output end;
the control module comprises a chip U3, a chip U4 and a pin bank J1, wherein a pin 21 of the chip U3 is connected with a pin 3 of a resistor R3 and a pin 3 of a pin bank J1 in series, a pin 24 of the chip U3 is connected with a pin 4 of a resistor R4 and a pin bank J1 in series, the output end of the resistor R4 is connected with a pin 1 of a resistor R5 and a pin J1 in series, and the output end of the resistor R5 is connected with a +5V power supply end; the pin 1 and the pin 8 of the chip U4 are both connected with a +15V power supply end, the pin 2 of the chip U4 is connected with the pin 10 of the chip U3, the pin 3 of the chip U4 is connected with the pin 1 of the chip U3, and the pin 4 and the pin 6 of the chip U4 are grounded;
the high-voltage generation module comprises a transformer T1 and a field-effect tube Q1, a pin 1 of the transformer T1 is connected with a capacitor C6 in series to be connected with an anode power supply input end, a pin 2 of the transformer T1 is connected with a diode D2 in series to be connected with a cathode power supply input end, and an output end of a diode D2 is connected with a diode D3 in series to be connected with an input end of the capacitor C6; a pin 4 of the transformer T1 is connected with a collector of a field-effect tube Q1, an emitter of the field-effect tube Q1 is grounded, a base of the field-effect tube Q1 is connected with a resistor R6 in series and is connected with a discharging terminal, and an input end of a resistor R6 is connected with a resistor R7 in series and is grounded;
the ozone generation module comprises a transformer T2 and a field effect transistor Q2, wherein a pin 1 of the transformer T2 is connected with an anode power supply input terminal, a pin 2 of the transformer T2 is connected with a cathode power supply input terminal, a pin 4 of the transformer T2 is connected with a collector of the field effect transistor Q2, an emitter of the field effect transistor Q2 is grounded, a base of the field effect transistor Q2 is connected with a resistor R8 in series to be connected with a discharging terminal, and an input end of the resistor R8 is connected with a resistor R9 to be grounded;
the display module comprises a light emitting diode D4-a light emitting diode D6 and a resistor R10-a resistor R12, wherein the input ends of the light emitting diode D4-a light emitting diode D6 are connected with a +5V power supply end, the output end of the light emitting diode D4 is connected with the resistor R10 in series and is connected with a pin 13 of a chip U3, the output end of the light emitting diode D5 is connected with the resistor R11 in series and is connected with a pin 14 of the chip U3, and the output end of the light emitting diode D6 is connected with the resistor R12 in series and is connected with a;
the wireless monitoring module comprises a pin bank J2, a resistor R13, a capacitor C7-a capacitor C9, a pin 1 of the pin bank J2 is connected with the capacitor C7 in series and grounded, a pin 2 of the pin bank J2 is connected with the capacitor C8 in series and grounded, the input end of the capacitor C8 is connected with a +5V power supply end, a pin 3 of the pin bank J2 is grounded, two ends of the capacitor C8 are connected with the capacitor C9 in parallel, and the input end of the capacitor C9 is connected with a resistor R13 and a pin 10 of a chip U3.
2. The control circuit of claim 1, wherein: the model of the chip U1 is 34063, the model of the chip U2 is 7805, and the model of the chip U4 is IT 2104.
3. The control circuit of claim 1, wherein: the chip U3 is controlled by a microcomputer program.
4. The utility model provides a refrigerator-freezer plasma deodorizing device that disinfects, a serial communication port, include the shell and arrange the high-pressure subassembly that discharges in the shell in, the high-pressure subassembly that discharges comprises power module, control module, high pressure generation module, display module, still include the ozone generation module and the wireless monitoring module who are connected with control module, the high-pressure subassembly is including the circuit board that has integrateed each module circuit again, high pressure generation module includes the potsherd, the discharge needle, wireless monitoring module includes the ozone sensor, wherein the circuit board is located in the relative confined cavity of shell, the ozone sensor and discharge needle are placed in the shell to through-hole and external intercommunication that are equipped with through the shell.
5. The plasma sterilization and deodorization device for the refrigerator according to claim 4, wherein: the ozone generator is characterized in that a baffle plate is arranged in the shell to divide the shell into a left part and a right part, the circuit board is arranged in the closed cavity on the left side, the ozone sensor is arranged in the space, close to the shell cover, on the upper portion of the right space, and the ceramic plate and the discharge needle are arranged on the lower portion of the right space.
6. The plasma sterilization and deodorization device for the refrigerator according to claim 4, wherein: the shell comprises a shell cover and a shell body, wherein buckling feet are arranged on the periphery of the shell cover and connected with the inner wall of the shell body in a buckling mode, the shell further comprises an air outlet net, and the air outlet net is tightly attached to the bottom surface of the shell cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920698678.XU CN210812740U (en) | 2019-05-15 | 2019-05-15 | Refrigerator plasma sterilization and deodorization device and control circuit thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920698678.XU CN210812740U (en) | 2019-05-15 | 2019-05-15 | Refrigerator plasma sterilization and deodorization device and control circuit thereof |
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| CN210812740U true CN210812740U (en) | 2020-06-23 |
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| CN201920698678.XU Expired - Fee Related CN210812740U (en) | 2019-05-15 | 2019-05-15 | Refrigerator plasma sterilization and deodorization device and control circuit thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110251704A (en) * | 2019-05-15 | 2019-09-20 | 深圳市凯仕德科技有限公司 | Refrigerator-freezer plasma sterilization deodorization device and its control circuit and sterilizing and deodorizing method |
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2019
- 2019-05-15 CN CN201920698678.XU patent/CN210812740U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110251704A (en) * | 2019-05-15 | 2019-09-20 | 深圳市凯仕德科技有限公司 | Refrigerator-freezer plasma sterilization deodorization device and its control circuit and sterilizing and deodorizing method |
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Granted publication date: 20200623 |