CN218763779U - Atomizing return circuit and humidifying equipment - Google Patents
Atomizing return circuit and humidifying equipment Download PDFInfo
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- CN218763779U CN218763779U CN202222609916.XU CN202222609916U CN218763779U CN 218763779 U CN218763779 U CN 218763779U CN 202222609916 U CN202222609916 U CN 202222609916U CN 218763779 U CN218763779 U CN 218763779U
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Abstract
The utility model provides an atomizing return circuit and humidifying equipment, include: the device comprises an atomizing sheet, a controller, an oscillating circuit, a constant power circuit and a water detection circuit; the output end of the controller is electrically connected with the control end of the oscillating circuit, the output end of the oscillating circuit is electrically connected with the input end of the constant power circuit, the output end of the constant power circuit is electrically connected with the input end of the oscillating circuit, two ends of the atomizing sheet are arranged on the oscillating circuit, one end of the atomizing sheet is used for being connected with a power supply, the input end of the water detection circuit is electrically connected with the input end of the water detection circuit, and the output end of the water detection circuit is electrically connected with the sampling end of the controller; wherein the oscillating circuit is configured to receive a control signal of the controller duty cycle variation to adjust the voltage across the atomization plate. The problem that whether equipment lacks water can not be detected to atomizing piece of atomizing equipment under low power state is solved.
Description
Technical Field
The utility model relates to a humidifier field, in particular to atomizing return circuit and humidifying equipment.
Background
In an application circuit of an air conditioner or an ultrasonic atomization sheet, whether water exists on the atomization sheet is generally detected by detecting the current of the atomization sheet, and then whether water exists in a water tank or a water tank of the air conditioner or a related product is detected.
In prior art, when humidification equipment air conditioner was in the state of high power operation, can be quick fall the water atomization on the atomizing piece, however, under some circumstances, in order to satisfy the different fog volume demands of customer, humidification equipment need adjust the operating power of atomizing piece, when low power operation, can appear that the atomizing piece can't dry the water atomization on the atomizing piece for a long time, make the atomizing piece operate at higher temperature for a long time, make the inside parameter of atomizing piece change, and then make and examine the water function inefficacy.
In view of this, the present application is presented.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an atomizing return circuit and humidification equipment aims at solving the atomizing piece of atomizing equipment under low power state, can't detect out the problem whether equipment lacks water.
The utility model discloses a first embodiment provides an atomizing return circuit, include: the device comprises an atomizing sheet, a controller, an oscillating circuit, a constant power circuit and a water detection circuit;
the output end of the controller is electrically connected with the control end of the oscillating circuit, the output end of the oscillating circuit is electrically connected with the input end of the constant power circuit, the output end of the constant power circuit is electrically connected with the input end of the oscillating circuit, two ends of the atomizing sheet are arranged on the oscillating circuit, one end of the atomizing sheet is used for being connected with a power supply, the input end of the water detection circuit is electrically connected with the input end of the water detection circuit, and the output end of the water detection circuit is electrically connected with the sampling end of the controller;
wherein the oscillating circuit is configured to receive a control signal of the controller duty cycle variation to adjust the voltage across the atomization plate.
Preferably, the constant power circuit is configured to receive a current generated by the oscillating circuit during operation and feed back to the controller, so that the controller adjusts the duty cycle of the control signal according to the feedback.
Preferably, the water detection circuit is configured to collect a voltage at an input end of the oscillation circuit, rectify and divide the voltage, and output the rectified and divided voltage to the controller.
Preferably, the oscillation circuit includes: the first resistor, the first inductor, the second inductor, the first capacitor, the second capacitor, the third capacitor, the fourth capacitor, the fifth capacitor, the first diode and the first triode;
wherein, the first end of first inductance with the output electrical connection of controller, the first end of first inductance passes through first electric capacity ground connection, the second end of first inductance passes through first resistance with the b utmost point electrical connection of first triode, the second end of first inductance passes through the second electric capacity with the e utmost point electrical connection of first triode, the second end of first inductance passes through the third electric capacity with the first end electrical connection of atomizing piece, the second end of atomizing piece with power electrical connection, the both ends of fourth electric capacity are connected respectively the b utmost point and the c utmost point of first triode, the c utmost point of first triode with power electrical connection, the negative pole of first diode with the c utmost point electrical connection of first triode, the positive pole of first diode with the e utmost point electrical connection of first triode, fifth electric capacity is in the both ends of first diode, the e utmost point of first triode pass through the second inductance with the input electrical connection of constant power circuit.
Preferably, the constant power circuit includes: the first sampling assembly, the second resistor, the third resistor, the sixth capacitor and the second triode;
wherein, the output of constant power circuit passes through first sampling subassembly ground connection, the output of constant power circuit passes through first sampling subassembly with the first end electrical connection of second resistance, the second end of second resistance with the b utmost point electrical connection of second triode, the both ends of sixth electric capacity respectively with the b utmost point and the e utmost point electrical connection of second triode, the e utmost point ground connection of second triode, the c utmost point of second triode passes through third resistance with the first end electrical connection of second sampling subassembly, the first end of second sampling subassembly with controller electrical connection.
Preferably, the water detection circuit comprises a rectification loop and a voltage division loop;
the input end of the rectification loop is electrically connected with the input end of the oscillating circuit, the output end of the rectification loop is electrically connected with the input end of the voltage division loop, and the output end of the voltage division loop is electrically connected with the input end of the controller.
Preferably, the chip model of the controller is BS84B08A _20SOP.
A second embodiment of the present invention provides a humidifying apparatus, including an atomization circuit as described above.
Based on the utility model provides an atomizing return circuit and humidification equipment, the controller can detect the state whether be in low-power operation at present through the input signal of outside button, when detecting low-power operating condition, can be every predetermine long to oscillating circuit provides the control signal of hundred percent duty cycles, so that state atomizing piece is when being higher than the operation of rated power and predetermine long, through the water detection circuit is to the controller provides sampling current to judge whether the water tank of present humidification body is in the water shortage state, wherein, constant power circuit be used for to the atomizing piece provides the operating current of problem, more than, solved atomizing equipment atomizing piece under low-power state, can't detect out the problem whether equipment lacks water.
Drawings
Fig. 1 is a schematic structural diagram of an oscillation circuit and a constant power circuit of an atomization loop provided by the present invention;
fig. 2 is a schematic diagram of a controller circuit of an atomization circuit provided by the present invention;
fig. 3 is a schematic diagram of a water detection loop provided by the utility model.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The following detailed description of the embodiments of the present invention is made with reference to the accompanying drawings.
The utility model discloses an atomizing return circuit and humidification equipment aims at solving the atomizing piece of atomizing equipment under low power state, can't detect out the problem whether equipment lacks water.
Referring to fig. 1 to 3, a first embodiment of the present invention provides an atomization circuit, including: the device comprises an atomizing sheet Y1, a controller U1, an oscillating circuit, a constant power circuit and a water detection circuit;
the output end of the controller U1 is electrically connected with the control end of the oscillating circuit, the output end of the oscillating circuit is electrically connected with the input end of the constant power circuit, the output end of the constant power circuit is electrically connected with the input end of the oscillating circuit, two ends of the atomizing sheet Y1 are arranged on the oscillating circuit, one end of the atomizing sheet Y1 is used for being connected with a power supply, the input end of the water detection circuit is electrically connected with the input end of the water detection circuit, and the output end of the water detection circuit is electrically connected with the sampling end of the controller U1;
the oscillating circuit is configured to receive a control signal of duty ratio change of the controller U1 so as to adjust voltage at two ends of the atomizing sheet Y1.
The inventor finds that, in some existing air conditioners or atomizers, it is necessary to set the operation at rated power, the operation at power lower than the rated power, or the operation at power higher than the rated power according to the requirement of a customer on the mist output, specifically, the power can be set by a key module connected to the controller U1, where when the air conditioners or atomizers operate at power lower than the rated power, there is a situation that there is no water in the water storage unit, and water on the atomizing sheet Y1 cannot be atomized, so that the atomizing sheet Y1 is always in a working state, at this time, the current flowing through the atomizing sheet Y1 cannot be changed, and the program for detecting water cannot determine that there is no water in the water storage unit by the current flowing through the atomizing sheet Y1.
In this embodiment, when the input signal through outside button detects current humidification equipment with low power running state, controller U1 can provide the control signal of hundred percent duty cycle every preset duration to oscillating circuit, so that it is preset duration to state atomizing piece Y1 and operate under being higher than rated power, it needs to explain that, atomizing piece Y1 that operates higher than rated power can be quick will atomizing piece Y1's last water fog fall, further, through the water detection circuit provides sampling current to controller U1 to judge whether the water tank of present humidification body is in the water shortage state, solved atomizing equipment atomizing piece Y1 under low power state, can't detect the problem whether equipment lacks water.
With reference to fig. 1, in a possible embodiment of the present invention, the oscillation circuit includes: the circuit comprises a first resistor R1, a first inductor L1, a second inductor L2, a first capacitor C1, a second capacitor C2, a third capacitor C3, a fourth capacitor C4, a fifth capacitor C5, a fifth capacitor D1 and a first triode Q1;
wherein, first inductance L1's first end with controller U1's output electrical connection, first inductance L1's first end passes through first electric capacity C1 ground connection, first inductance L1's second end passes through first resistance R1 with first triode Q1's b utmost point electrical connection, first inductance L1's second end passes through second electric capacity C2 with first triode Q1's e utmost point electrical connection, first inductance L1's second end passes through third electric capacity C3 with atomizing piece Y1's first end electrical connection, atomizing piece Y1's second end with power electrical connection, fourth electric capacity C4's both ends are connected respectively first triode Q1's b utmost point and C utmost point, first triode Q1's C utmost point with power electrical connection, fifth electric capacity D1's negative pole with first triode Q1's C utmost point electrical connection, fifth electric capacity D1's positive pole with first triode Q1's e utmost point electrical connection, fifth electric capacity D1's negative pole is in the second electric capacity C5 electric capacity C1's input end electrical connection the second electric capacity C2 electric capacity D1's input end passes through the second electric capacity C2.
It should be noted that the oscillation circuit is configured to form three-point oscillation by the first triode Q1 and the peripheral capacitors (the second capacitor C2, the third capacitor C3, the fourth capacitor C4, and the fifth capacitor C5) and the inductors (the first inductor L1 and the second inductor L2), when the HUM _ MU + signal of the controller U1 passes through the b-pole of the first triode Q1, the first triode Q1 is turned on and off rapidly, and the inductor capacitor forms an oscillation circuit, and according to the adjusted capacitor and inductor parameters, a voltage peak value of about 50-60V and an oscillation frequency of about 1.7MHz are formed, so as to provide a voltage and an oscillation frequency for the atomizing plate Y1, and thus the atomizing plate Y1 vibrates to emit mist. The voltage at two ends of the atomizing sheet Y1 can be changed by adjusting the HUM _ MU + signal duty ratio of the controller U1 and changing the current of the pole of the first triode Q1e, so that the power and the mist quantity are changed.
In a possible embodiment of the present invention, the constant power circuit is configured to receive the current generated by the oscillating circuit during operation, and feed back the current to the controller U1, so that the controller U1 adjusts the duty ratio of the control signal according to the feedback.
It may include that the constant power circuit comprises: the circuit comprises a first sampling component 11, a second sampling component 12, a second resistor R2, a third resistor R3, a sixth capacitor C6 and a second triode Q2;
wherein, the output of constant power circuit passes through 11 ground connections of first sampling subassembly, the output of constant power circuit passes through first sampling subassembly 11 with second resistance R2's first end electrical connection, second resistance R2's second end with second triode Q2's b utmost point electrical connection, sixth electric capacity C6's both ends respectively with second triode Q2's b utmost point and e utmost point electrical connection, second triode Q2's e utmost point ground connection, second triode Q2's C utmost point passes through third resistance R3 with the first end electrical connection of second sampling subassembly 12, the first end of second sampling subassembly 12 with controller U1 electrical connection.
It should be noted that, when the HUM _ MU + signal of the controller U1 passes through the first triode Q1, the oscillation circuit starts to operate, a current is generated at the position of the inductor and the second inductor L2, and the current is fed back to the controller U1 through the first sampling component 11, the second triode Q2 and the second sampling component 12, and the controller U1 can stabilize the operating current in the humidifier atomization circuit based on the b-pole current of the fed-back current of the first triode Q1 in real time, thereby keeping the power constant.
In a possible embodiment of the present invention, the water detection circuit is configured to collect the input voltage of the oscillation circuit, and output the voltage to the controller U1 after rectifying and dividing the voltage.
Please refer to fig. 3, which may include the water detection circuit including a rectification circuit 21 and a voltage division circuit 22;
the input end of the rectification loop 21 is electrically connected with the input end of the oscillation circuit, the output end of the rectification loop 21 is electrically connected with the input end of the voltage division loop 22, and the output end of the voltage division loop 22 is electrically connected with the input end of the controller U1.
It should be noted that, the working voltage at the SWJC position of the oscillating circuit passes through the rectifying circuit 21 and the voltage dividing circuit 22, and a relatively stable voltage AD value can be generated, when the atomizing sheet Y1 normally works, the AD value is normally stabilized at about 2.0V, when the atomizing sheet Y1 is in water shortage, the voltage at the SWJC position changes, so that the AD value also changes, the voltage value can reach more than 2.2V, and the MCU judges whether the atomizing sheet Y1 has water or not by detecting the AD value in real time.
In one possible embodiment of the present invention, the chip model of the controller U1 is BS84B08A _20SOP.
It should be noted that, in other embodiments, the chip type of the controller U1 may also be a chip of another type, which is not specifically limited herein, but these schemes are all within the protection scope of the present invention.
A second embodiment of the present invention provides a humidifying apparatus, including an atomization circuit as described above.
Based on the utility model provides an atomizing return circuit and humidification equipment, controller U1 can detect the state whether current is in the low-power operation through the input signal of outside button, when detecting the low-power running state, can every predetermine long to oscillating circuit provides the control signal of hundred percent duty cycles, so that it is long when the operation is predetermine to state atomizing piece Y1 is being higher than under the rated power examine the water circuit to controller U1 provides sampling current to judge whether the water tank of current humidification body is in the hydropenia state, wherein, constant power circuit be used for to atomizing piece Y1 provides the operating current of problem, above, has solved atomizing equipment atomizing piece Y1 under the low-power state, can't detect out the problem whether equipment hydropenia.
Above only the utility model discloses a preferred embodiment, the utility model discloses a scope not only limits in above-mentioned embodiment, and the fan belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope.
Claims (8)
1. An atomizing circuit, comprising: the device comprises an atomizing sheet, a controller, an oscillating circuit, a constant power circuit and a water detection circuit;
the output end of the controller is electrically connected with the control end of the oscillating circuit, the output end of the oscillating circuit is electrically connected with the input end of the constant power circuit, the output end of the constant power circuit is electrically connected with the input end of the oscillating circuit, two ends of the atomizing sheet are arranged on the oscillating circuit, one end of the atomizing sheet is used for being connected with a power supply, the input end of the water detection circuit is electrically connected with the input end of the water detection circuit, and the output end of the water detection circuit is electrically connected with the sampling end of the controller;
wherein the oscillating circuit is configured to receive a control signal of the controller duty cycle variation to adjust the voltage across the atomization plate.
2. The atomization circuit of claim 1 wherein the constant power circuit is configured to receive current generated by the oscillator circuit when in operation and to provide feedback to the controller such that the controller adjusts the duty cycle of the control signal based on the feedback.
3. The atomization circuit of claim 1 wherein the water detection circuit is configured to collect a voltage at an input of the oscillation circuit, rectify and divide the voltage, and output the rectified and divided voltage to the controller.
4. An atomisation circuit according to claim 1, characterised in that the oscillating circuit comprises: the circuit comprises a first resistor, a first inductor, a second inductor, a first capacitor, a second capacitor, a third capacitor, a fourth capacitor, a fifth capacitor, a first diode and a first triode;
the first end of the first inductor is electrically connected with the output end of the controller, the first end of the first inductor is grounded through the first capacitor, the second end of the first inductor is electrically connected with the electrode b of the first triode through the first resistor, the second end of the first inductor is electrically connected with the electrode e of the first triode through the second capacitor, the second end of the first inductor is electrically connected with the first end of the atomization sheet through the third capacitor, the second end of the atomization sheet is electrically connected with the power supply, two ends of the fourth capacitor are respectively connected with the electrode b and the electrode c of the first triode, the electrode c of the first triode is electrically connected with the power supply, the negative electrode of the first diode is electrically connected with the electrode c of the first triode, the positive electrode of the first diode is electrically connected with the electrode e of the first triode, the fifth capacitor is connected with two ends of the first diode, and the electrode e of the first triode is electrically connected with the input end of the constant power circuit through the second inductor.
5. An atomisation circuit according to claim 1 or 2, wherein the constant power circuit comprises: the first sampling component, the second resistor, the third resistor, the sixth capacitor and the second triode;
wherein, the output of constant power circuit passes through first sampling subassembly ground connection, the output of constant power circuit passes through first sampling subassembly with the first end electrical connection of second resistance, the second end of second resistance with the b utmost point electrical connection of second triode, the both ends of sixth electric capacity respectively with the b utmost point and the e utmost point electrical connection of second triode, the e utmost point ground connection of second triode, the c utmost point of second triode passes through third resistance with the first end electrical connection of second sampling subassembly, the first end of second sampling subassembly with controller electrical connection.
6. The atomization circuit of claim 1 or 3 wherein the water detection circuit comprises a rectification circuit and a voltage division circuit;
the input end of the rectification loop is electrically connected with the input end of the oscillating circuit, the output end of the rectification loop is electrically connected with the input end of the voltage division loop, and the output end of the voltage division loop is electrically connected with the input end of the controller.
7. The atomizing circuit of claim 1, wherein the controller has a chip model of BS84B08A _20SOP.
8. Humidifying apparatus comprising an atomisation circuit as claimed in any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222609916.XU CN218763779U (en) | 2022-09-30 | 2022-09-30 | Atomizing return circuit and humidifying equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222609916.XU CN218763779U (en) | 2022-09-30 | 2022-09-30 | Atomizing return circuit and humidifying equipment |
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| Publication Number | Publication Date |
|---|---|
| CN218763779U true CN218763779U (en) | 2023-03-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222609916.XU Active CN218763779U (en) | 2022-09-30 | 2022-09-30 | Atomizing return circuit and humidifying equipment |
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|---|---|
| CN (1) | CN218763779U (en) |
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2022
- 2022-09-30 CN CN202222609916.XU patent/CN218763779U/en active Active
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