CN111515192A - Ultrasonic cleaner and control circuit - Google Patents
Ultrasonic cleaner and control circuit Download PDFInfo
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- CN111515192A CN111515192A CN202010384462.3A CN202010384462A CN111515192A CN 111515192 A CN111515192 A CN 111515192A CN 202010384462 A CN202010384462 A CN 202010384462A CN 111515192 A CN111515192 A CN 111515192A
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- 238000004506 ultrasonic cleaning Methods 0.000 claims abstract description 61
- 239000007788 liquid Substances 0.000 claims abstract description 43
- 230000006698 induction Effects 0.000 claims abstract description 23
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 23
- 239000003990 capacitor Substances 0.000 claims description 33
- 238000004140 cleaning Methods 0.000 claims description 15
- 230000035945 sensitivity Effects 0.000 claims description 12
- 230000001939 inductive effect Effects 0.000 claims description 3
- 230000002000 scavenging effect Effects 0.000 claims 2
- 230000000694 effects Effects 0.000 abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 238000001514 detection method Methods 0.000 description 4
- NMWSKOLWZZWHPL-UHFFFAOYSA-N 3-chlorobiphenyl Chemical compound ClC1=CC=CC(C=2C=CC=CC=2)=C1 NMWSKOLWZZWHPL-UHFFFAOYSA-N 0.000 description 3
- 101001082832 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) Pyruvate carboxylase 2 Proteins 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/04—Cleaning involving contact with liquid
- B08B3/10—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration
- B08B3/12—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration by sonic or ultrasonic vibrations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B13/00—Accessories or details of general applicability for machines or apparatus for cleaning
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0423—Input/output
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Cleaning By Liquid Or Steam (AREA)
Abstract
The invention discloses an ultrasonic cleaner and a control circuit, wherein the control circuit of the ultrasonic cleaner comprises a main controller, a voltage stabilizing unit, an induction unit and a communication port P2, wherein the input end of the voltage stabilizing unit is connected with a mains supply, and the output end of the voltage stabilizing unit is respectively connected with the main controller and the induction unit; the sensing unit is connected with the main controller through the communication port P2; the sensing unit comprises a second control chip U2, a liquid level sensing part and a signal output part, the liquid level sensing part is connected with the second control chip U2, and a sensing signal of the second control chip U2 is output to the communication port P2 through the signal output part; the invention provides a control circuit of an ultrasonic cleaning machine, when a sensing unit outputs a sensing signal, the area of liquid contacting with the ultrasonic cleaning machine is shown to reach a preset area, and a main controller controls the ultrasonic cleaning machine to work; the shell of the ultrasonic cleaner is not provided with a control device, so that the integral waterproof effect is better.
Description
Technical Field
The invention relates to the technical field of cleaning machines, in particular to an ultrasonic cleaning machine and a control circuit.
Background
In the current market, a control panel or a switch button is generally arranged on a shell of a traditional ultrasonic cleaning machine so as to start or stop the operation of the ultrasonic cleaning machine.
When cleaning work is needed, a user can place the ultrasonic cleaning machine in a container such as a water tank, a basin or a bucket, so that the ultrasonic cleaning machine can clean articles in the container; because the ultrasonic cleaner is completely immersed in water during working, if a control panel or a switch button is arranged on the surface of the ultrasonic cleaner, the good waterproof effect of the position where the control panel and the switch button are arranged is ensured, otherwise, the water seepage phenomenon easily occurs, the normal use of electronic devices inside the ultrasonic cleaner is influenced, and the service life of the ultrasonic cleaner is shortened.
It is seen that improvements and enhancements to the prior art are needed.
Disclosure of Invention
In view of the above-mentioned shortcomings of the prior art, the present invention is directed to a control circuit of an ultrasonic cleaning machine, wherein a main controller controls the operation of the ultrasonic cleaning machine according to a sensing signal of a sensing unit, and a control device is not required to be disposed on a surface of a housing, so that the overall waterproof effect of the ultrasonic cleaning machine is good.
In order to achieve the purpose, the invention adopts the following technical scheme:
a control circuit of an ultrasonic cleaner comprises a main controller, a voltage stabilizing unit, an induction unit and a communication port P2, wherein the input end of the voltage stabilizing unit is connected with a mains supply, and the output end of the voltage stabilizing unit is respectively connected with the main controller and the induction unit; the sensing unit is connected with the main controller through the communication port P2; the sensing unit comprises a second control chip U2, a liquid level sensing part and a signal output part, the liquid level sensing part is connected with a second control chip U2, and sensing signals of the second control chip U2 are output to a communication port P2 through the signal output part.
In the control circuit of the ultrasonic cleaning machine, the voltage stabilizing unit comprises a first control chip U1, a first capacitor C1 and a second capacitor C2, a pin 2 of the first control chip U1 is connected with a mains supply, a pin 3 of the first control chip U1 is a voltage output end, and a pin 1 of the first control chip U1 is grounded; one end of the first capacitor C1 is connected with a pin 2 of the first control chip U1, and the other end of the first capacitor C1 is grounded; one end of the second capacitor C2 is connected with a pin 3 of the first control chip U1, and the other end of the second capacitor C2 is grounded; and the pin 3 of the first control chip U1 is respectively connected with the main controller and the sensing unit.
In the control circuit of the ultrasonic cleaning machine, the liquid level sensing part comprises a second resistor R2, and the second resistor R2 is connected with a pin 7 of a second control chip U2; and the pin 7 of the second control chip U2 is a liquid level sensing pin.
In the control circuit of the ultrasonic cleaning machine, the signal output part comprises a third resistor R3, a fourth resistor R4 and a triode Q1, one end of the third resistor R3 is connected with a pin 5 of a second control chip U2, the other end of the third resistor R3 is connected with a collector of a triode Q1, and the collector of the triode Q1 is also connected with a pin 2 of a communication port P2; one end of the fourth resistor R4 is connected with a pin 6 of a second control chip U2, and the other end of the fourth resistor R4 is connected with the base electrode of the triode Q1; the emitter of the transistor Q1 is grounded.
In the control circuit of the ultrasonic cleaning machine, the sensing unit further comprises a temperature sensing part, and the temperature sensing part is connected with the second control chip U2.
In the control circuit of the ultrasonic cleaning machine, the temperature sensing part comprises a first resistor R1, and the first resistor R1 is connected with a pin 8 of a second control chip U2; and the pin 8 of the second control chip U2 is a temperature sensing pin.
In the control circuit of the ultrasonic cleaning machine, the sensing unit further comprises a sensitivity adjusting part, and the sensitivity adjusting part is connected with a second control chip U2.
In the control circuit of the ultrasonic cleaning machine, the sensitivity adjusting part comprises a third capacitor C3, one end of the third capacitor C3 is connected with the pin 2 of the second control chip U2, and the other end of the third capacitor C3 is grounded.
The invention also correspondingly provides an ultrasonic cleaning machine which comprises a shell, wherein a first PCB, a non-contact sensor and a cleaning pump are arranged in the shell, a main controller is arranged on the first PCB, the non-contact sensor is used for sensing the liquid level and outputting a sensing signal to the main controller, and the main controller is used for controlling the cleaning pump to start or stop working.
In the ultrasonic cleaning machine, a voltage stabilizing unit is arranged on the first PCB and used for providing stable working voltage for a main controller, a non-contact sensor and a cleaning pump; the non-contact sensor is characterized in that a second PCB is arranged in the non-contact sensor, an induction unit is arranged on the second PCB and used for inducing the liquid level and outputting an induction signal to the main controller.
Has the advantages that:
the invention provides a control circuit of an ultrasonic cleaner, when a liquid level sensing part senses that the contact area of the ultrasonic cleaner and liquid is more than or equal to a preset area, a second control chip U2 outputs a sensing signal to a main controller through a communication port P2, and the main controller controls the ultrasonic cleaner to start working; a control panel or a switch button is not required to be arranged on the surface of the shell to realize the working control of the ultrasonic cleaning machine, so that water is prevented from permeating into the ultrasonic cleaning machine from the position where the control panel or the switch button is arranged, and the integral waterproof effect of the ultrasonic cleaning machine is improved; in addition, the arrangement of a control panel or a switch key is reduced, extra waterproof measures are not required to be added on the surface of the shell, and the production cost is reduced.
Drawings
FIG. 1 is a schematic structural diagram of a control circuit of an ultrasonic cleaning machine according to the present invention;
FIG. 2 is a circuit diagram of a control circuit of the ultrasonic cleaning machine according to the present invention;
FIG. 3 is a schematic structural diagram of a recording port according to the present invention;
FIG. 4 is a schematic structural view of an ultrasonic cleaning machine provided by the present invention;
fig. 5 is an internal structure view of the ultrasonic cleaning machine according to the present invention.
Description of the main element symbols: 1-shell, 2-first PCB board, 3-non-contact sensor, 4-cleaning pump.
Detailed Description
The present invention provides an ultrasonic cleaning machine and a control circuit, and in order to make the purpose, technical scheme and effect of the present invention clearer and clearer, the present invention is further described in detail below by referring to the attached drawings and embodiments.
In the description of the present invention, it is to be understood that the terms "mounted," "connected," and the like are to be interpreted broadly, and those skilled in the art can understand the specific meanings of the above terms in the present invention according to specific situations.
Referring to fig. 1, the present invention provides a control circuit of an ultrasonic cleaning machine, including a main controller, a voltage stabilizing unit, an induction unit and a communication port P2, wherein an input end of the voltage stabilizing unit is connected to a mains supply, and an output end of the voltage stabilizing unit is connected to the main controller and the induction unit respectively; the sensing unit is connected with the main controller through the communication port P2; the sensing unit comprises a second control chip U2, a liquid level sensing part and a signal output part, the liquid level sensing part is connected with a second control chip U2, and sensing signals of the second control chip U2 are output to a communication port P2 through the signal output part.
The invention provides a control circuit of an ultrasonic cleaner, which has the following working principle:
the detection principle of the induction unit is a capacitance type, namely the larger the contact area of the ultrasonic cleaner and liquid is, the higher the capacitance value detected by the liquid level induction part is; a lower limit capacity value is set in the second control chip U2 in advance, when the capacity value detected by the liquid level sensing part is larger than or equal to the lower limit capacity value, the ultrasonic cleaning machine is placed in the container, and the contact area of the ultrasonic cleaning machine and the liquid in the container is larger than or equal to a preset area; at this time, the second control chip U2 outputs a sensing signal to the communication port P2 through the signal output part, the communication port P2 outputs a sensing signal to the main controller, the main controller controls the ultrasonic cleaning machine to start working, and the ultrasonic cleaning machine cleans the objects to be cleaned placed in the container such as the water tank, the basin, the bucket, etc.
When the ultrasonic cleaning machine is taken out from the container, the liquid on the surface of the shell 1 of the ultrasonic cleaning machine is reduced, namely the area of the liquid contacted with the ultrasonic cleaning machine is reduced; when the contact area of the ultrasonic cleaning machine and liquid is smaller than the preset area, the capacitance value detected by the sensing unit is smaller than the preset lower capacitance value, the sensing unit does not output a sensing signal to the main controller, the main controller does not output a control instruction to the ultrasonic cleaning machine under the condition that the main controller does not receive the sensing signal, and the main controller controls the ultrasonic cleaning machine to stop cleaning.
According to the control circuit of the ultrasonic cleaning machine, the work control of the ultrasonic cleaning machine is realized through the matching of the induction unit and the main controller, and work control devices such as a control panel, a switch button and the like do not need to be additionally arranged on the surface of the shell 1; the work control device is a device which outputs a trigger signal for starting work to the main controller so as to control the ultrasonic cleaning machine to start work; water can be prevented from permeating into the ultrasonic cleaning machine from the connecting position of the work control device and the shell 1, and the integral waterproof effect of the ultrasonic cleaning machine is improved; in addition, the arrangement of the work control device is reduced, a waterproof measure is not required to be additionally arranged at the position where the work control device is arranged, and the production cost is greatly reduced.
In this embodiment, the model of the second control chip U2 may be, but is not limited to, SC92F 8270; the ultrasonic cleaning machine is internally provided with a first PCB, the main controller and the voltage stabilizing unit are arranged on the first PCB, the main controller comprises a third control chip U3, and the model of the third control chip U3 can be but is not limited to HT66F 489; the voltage stabilizing unit and the sensing unit are respectively connected with a third control chip U3.
Further, an upper tolerance value may be set in the second control chip U2 in advance, where the upper tolerance value is used to limit the sensing sensitivity of the sensing unit; the upper limit capacity value and the lower limit capacity value are set, so that an anti-interference effect is achieved, and the accuracy and the effectiveness of the sensing signal output by the sensing unit are improved.
Further, referring to fig. 2, the voltage stabilizing unit includes a first control chip U1, a first capacitor C1 and a second capacitor C2, a pin 2 of the first control chip U1 is connected to the mains supply, a pin 3 of the first control chip U1 is a voltage output terminal, and a pin 1 of the first control chip U1 is grounded; one end of the first capacitor C1 is connected with a pin 2 of the first control chip U1, and the other end of the first capacitor C1 is grounded; one end of the second capacitor C2 is connected with a pin 3 of the first control chip U1, and the other end of the second capacitor C2 is grounded; and the pin 3 of the first control chip U1 is respectively connected with the main controller and the sensing unit.
In this embodiment, the first capacitor C1 and the second capacitor C2 are filter capacitors, and the type of the first control chip U1 may be, but is not limited to, HT 7333-1; the voltage stabilizing unit converts 220V mains supply into 5V direct current voltage, and provides stable working voltage for the main controller and the induction unit.
Further, referring to fig. 2, the liquid level sensing portion includes a second resistor R2, and the second resistor R2 is connected to the pin 7 of the second control chip U2; the pin 7 of the second control chip U2 is a liquid level sensing pin; in actual use, a non-contact sensor 3 is arranged in the ultrasonic cleaning machine, a second PCB is arranged in the non-contact sensor 3, and the sensing unit is arranged on the second PCB; and the pins 7 of the second control chip U2 are used for sensing liquid level, and the pins 7 of the second control chip U2 are positioned at the bottom layer of the second PCB and are tightly attached to the bottom surface of the inner shell of the non-contact sensor 3.
Further, referring to fig. 2, the signal output portion includes a third resistor R3, a fourth resistor R4, and a transistor Q1, one end of the third resistor R3 is connected to a pin 5 of the second control chip U2, the other end of the third resistor R3 is connected to a collector of a transistor Q1, and the collector of the transistor Q1 is further connected to a pin 2 of the communication port P2; one end of the fourth resistor R4 is connected with a pin 6 of a second control chip U2, and the other end of the fourth resistor R4 is connected with the base electrode of the triode Q1; the emitter of the transistor Q1 is grounded.
In this embodiment, the third resistor R3 is a pull-up resistor, and the fourth resistor R4 is a current-limiting resistor at the base of the transistor Q1; when the second control chip U2 does not output a sensing signal, that is, the ultrasonic cleaner does not contact with liquid or the area contacting with liquid does not reach a preset area, the signal output part outputs a high level signal by default; when the second control chip U2 outputs an induction signal, namely the contact area of the ultrasonic cleaning machine and the liquid reaches a preset area, the signal output part outputs a low-level signal; the communication port P2 is a communication port connected to the main controller, and when the main controller recognizes a low level, the main controller controls the ultrasonic cleaner to start performing a cleaning task.
Further, referring to fig. 1, the sensing unit further includes a temperature sensing portion, and the temperature sensing portion is connected to the second control chip U2; because the internal environment temperature of the non-contact sensor 3 can affect the accuracy of the detection result detected by the liquid level sensing part, the temperature sensing part is arranged for detecting the internal environment temperature of the non-contact sensor 3, so that the second control chip U2 can correct the volume value corresponding to the contact area of the detected liquid according to the change of the internal environment temperature, and the accuracy of the detection result is improved.
Further, referring to fig. 2, the temperature sensing part includes a first resistor R1, and the first resistor R1 is connected to the pin 8 of the second control chip U2; the pin 8 of the second control chip U2 is a temperature sensing pin; in actual use, the pin 8 of the second control chip U2 is located on the top layer of the second PCB board for sensing the ambient temperature inside the non-contact sensor 3.
Further, referring to fig. 1, the sensing unit further includes a sensitivity adjusting portion, and the sensitivity adjusting portion is connected to the second control chip U2.
Further, referring to fig. 2, the sensitivity adjustment portion includes a third capacitor C3, one end of the third capacitor C3 is connected to the pin 2 of the second control chip U2, and the other end of the third capacitor C3 is grounded; the third capacitor C3 is an induction sensitivity adjusting capacitor, and the induction sensitivity of the induction unit is adjusted by adjusting the capacitance value of the third capacitor C3.
Further, referring to fig. 3, the control circuit of the ultrasonic cleaning machine further includes a programming port P1, pin 1 of the programming port P1 is connected to pin 3 of the first control chip U1, pin 2 of the programming port P1 is connected to pin 4 of the second control chip U2, pin 3 of the programming port P1 is connected to pin 3 of the second control chip U2, and pin 4 of the programming port P1 is grounded; the burning port is used for burning the control program into the second control chip U2.
Referring to fig. 4 and 5, the present invention further provides an ultrasonic cleaning machine, wherein the ultrasonic cleaning machine can adopt the control circuit of the ultrasonic cleaning machine to perform work control; the ultrasonic cleaning machine comprises a shell 1, wherein a first PCB (printed circuit board) 2, a non-contact sensor 3 and a cleaning pump 4 are arranged in the shell 1, a main controller is arranged on the first PCB 2, the non-contact sensor 3 is used for sensing the liquid level and outputting a sensing signal to the main controller, and the main controller is used for controlling the cleaning pump 4 to start or stop working.
The detection principle of the non-contact sensor 3 is a capacitance type, when the contact area of the ultrasonic cleaner and liquid is larger, the higher the capacity value detected by the non-contact sensor 3 is, and when the capacity value detected by the non-contact sensor 3 is larger than or equal to a preset lower capacity value, namely, the contact area of the ultrasonic cleaner and the liquid is larger than or equal to a preset area, the non-contact sensor 3 outputs a sensing signal to the main controller, and the main controller controls the cleaning pump 4 to start working to clean articles placed in a container such as a water tank, a basin, a bucket and the like.
Because the shell 1 of the ultrasonic cleaning machine is arc-shaped, the radius of the top and the radius of the bottom of the shell 1 are smaller than the radius of the middle part of the shell 1, namely the width of the shell 1 is gradually increased from the top to the middle part and the width of the shell 1 is gradually increased from the bottom to the middle part; when the ultrasonic cleaning machine is taken out from the container, the liquid can slide off the surface of the shell 1, and the liquid on the surface of the shell 1 of the ultrasonic cleaning machine is reduced, namely the area of the liquid in contact with the ultrasonic cleaning machine is reduced; the non-contact sensor 3 is arranged at the bottom inside the shell 1 and is mainly used for detecting the liquid contact area at the bottom of the shell 1, when the contact area between the ultrasonic cleaning machine and liquid is smaller than a preset area, the volume value detected by the non-contact sensor 3 is smaller than a preset lower limit volume value, the non-contact sensor 3 does not output a sensing signal to the main controller, and the main controller controls the cleaning pump 4 to stop working.
Further, a voltage stabilizing unit is arranged on the first PCB 2 and used for providing stable working voltage for the main controller, the non-contact sensor 3 and the cleaning pump 4; and a second PCB is arranged in the non-contact sensor 3, an induction unit is arranged on the second PCB, and the induction unit is used for inducing the liquid level and outputting an induction signal to the main controller.
In this embodiment, the voltage stabilizing unit converts the 220V commercial power into a 5V dc voltage to provide a stable working voltage for the main controller and the ultrasonic cleaning machine, and the voltage stabilizing unit converts the 220V commercial power into a 12V dc voltage to provide a stable working voltage for the cleaning pump 4; in addition, in this embodiment, a communication port P2 is disposed on the first PCB 2, and the sensing unit is connected to the main controller through the communication port P2.
It should be understood that equivalents and modifications of the technical solution and inventive concept thereof may occur to those skilled in the art, and all such modifications and alterations should fall within the protective scope of the present invention.
Claims (10)
1. A control circuit of an ultrasonic cleaner comprises a main controller and is characterized by further comprising a voltage stabilizing unit, an induction unit and a communication port P2, wherein the input end of the voltage stabilizing unit is connected with a mains supply, and the output end of the voltage stabilizing unit is respectively connected with the main controller and the induction unit; the sensing unit is connected with the main controller through the communication port P2; the sensing unit comprises a second control chip U2, a liquid level sensing part and a signal output part, the liquid level sensing part is connected with a second control chip U2, and sensing signals of the second control chip U2 are output to a communication port P2 through the signal output part.
2. The control circuit of claim 1, wherein the voltage stabilizing unit comprises a first control chip U1, a first capacitor C1 and a second capacitor C2, pin 2 of the first control chip U1 is connected to the mains, pin 3 of the first control chip U1 is a voltage output terminal, and pin 1 of the first control chip U1 is grounded; one end of the first capacitor C1 is connected with a pin 2 of the first control chip U1, and the other end of the first capacitor C1 is grounded; one end of the second capacitor C2 is connected with a pin 3 of the first control chip U1, and the other end of the second capacitor C2 is grounded; and the pin 3 of the first control chip U1 is respectively connected with the main controller and the sensing unit.
3. The control circuit of claim 1, wherein the liquid level sensing part comprises a second resistor R2, and the second resistor R2 is connected with a pin 7 of a second control chip U2; and the pin 7 of the second control chip U2 is a liquid level sensing pin.
4. The control circuit of claim 1, wherein the signal output unit comprises a third resistor R3, a fourth resistor R4 and a transistor Q1, one end of the third resistor R3 is connected to pin 5 of the second control chip U2, the other end of the third resistor R3 is connected to a collector of a transistor Q1, and the collector of the transistor Q1 is further connected to pin 2 of the communication port P2; one end of the fourth resistor R4 is connected with a pin 6 of a second control chip U2, and the other end of the fourth resistor R4 is connected with the base electrode of the triode Q1; the emitter of the transistor Q1 is grounded.
5. The control circuit of an ultrasonic cleaning machine according to any one of claims 1 to 4, wherein the sensing unit further comprises a temperature sensing part, and the temperature sensing part is connected with the second control chip U2.
6. The control circuit of claim 5, wherein the temperature sensing part comprises a first resistor R1, and the first resistor R1 is connected with a pin 8 of a second control chip U2; and the pin 8 of the second control chip U2 is a temperature sensing pin.
7. The control circuit of an ultrasonic cleaning machine according to any one of claims 1 to 4, wherein the sensing unit further comprises a sensitivity adjusting part, and the sensitivity adjusting part is connected with the second control chip U2.
8. The control circuit of claim 7, wherein the sensitivity adjustment unit comprises a third capacitor C3, one end of the third capacitor C3 is connected to pin 2 of the second control chip U2, and the other end of the third capacitor C3 is grounded.
9. The utility model provides an ultrasonic cleaner, includes the casing, its characterized in that, be provided with first PCB board, non-contact sensor and scavenging pump in the casing, be provided with main control unit on the first PCB board, non-contact sensor is used for the liquid level response and outputs sensing signal to main control unit, main control unit is used for controlling the scavenging pump and begins or stop work.
10. An ultrasonic cleaning machine according to claim 9, wherein the first PCB is provided with a voltage stabilizing unit for providing a stable operating voltage for the main controller, the non-contact sensor and the cleaning pump; the non-contact sensor is characterized in that a second PCB is arranged in the non-contact sensor, an induction unit is arranged on the second PCB and used for inducing the liquid level and outputting an induction signal to the main controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010384462.3A CN111515192A (en) | 2020-05-08 | 2020-05-08 | Ultrasonic cleaner and control circuit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010384462.3A CN111515192A (en) | 2020-05-08 | 2020-05-08 | Ultrasonic cleaner and control circuit |
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| CN111515192A true CN111515192A (en) | 2020-08-11 |
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| CN202010384462.3A Pending CN111515192A (en) | 2020-05-08 | 2020-05-08 | Ultrasonic cleaner and control circuit |
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| CN101109664A (en) * | 2007-08-21 | 2008-01-23 | 李亚滨 | Optical fiber temp/moisture sensor and manufacturing method and metering installation thereof |
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| CN203459324U (en) * | 2013-07-04 | 2014-03-05 | 广东固特超声实业有限公司 | Ultrasonic cleaner |
| CN206658191U (en) * | 2017-03-29 | 2017-11-21 | 厦门博晶光电技术有限公司 | A kind of non-contact capacitive sensor circuit |
| CN212349716U (en) * | 2020-05-08 | 2021-01-15 | 达仁智能科技(佛山)有限公司 | Ultrasonic cleaner and control circuit |
-
2020
- 2020-05-08 CN CN202010384462.3A patent/CN111515192A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101109664A (en) * | 2007-08-21 | 2008-01-23 | 李亚滨 | Optical fiber temp/moisture sensor and manufacturing method and metering installation thereof |
| CN201697690U (en) * | 2009-07-31 | 2011-01-05 | 佛山市中协电器有限公司 | Capacitive sensing liquid level sensor |
| CN202139655U (en) * | 2011-07-04 | 2012-02-08 | 戚祖强 | Ultrasonic water channel provided with liquid level switch |
| CN203459324U (en) * | 2013-07-04 | 2014-03-05 | 广东固特超声实业有限公司 | Ultrasonic cleaner |
| CN206658191U (en) * | 2017-03-29 | 2017-11-21 | 厦门博晶光电技术有限公司 | A kind of non-contact capacitive sensor circuit |
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