CN219943385U - Atomizer circuit and atomizer - Google Patents
Atomizer circuit and atomizer Download PDFInfo
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- CN219943385U CN219943385U CN202321034523.9U CN202321034523U CN219943385U CN 219943385 U CN219943385 U CN 219943385U CN 202321034523 U CN202321034523 U CN 202321034523U CN 219943385 U CN219943385 U CN 219943385U
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- electrically connected
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- capacitor
- inductor
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- 239000003990 capacitor Substances 0.000 claims abstract description 57
- 230000010355 oscillation Effects 0.000 claims description 20
- 239000006199 nebulizer Substances 0.000 claims description 8
- 230000005855 radiation Effects 0.000 abstract description 5
- 238000001816 cooling Methods 0.000 abstract 1
- 239000013256 coordination polymer Substances 0.000 description 6
- 238000001914 filtration Methods 0.000 description 6
- 238000000889 atomisation Methods 0.000 description 3
- 230000005685 electric field effect Effects 0.000 description 3
- 239000000443 aerosol Substances 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002210 silicon-based material Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
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Abstract
The utility model discloses an atomizer circuit and an atomizer, and relates to the technical field of atomizers. The atomizer circuit comprises an atomizing sheet oscillating circuit, a controller, a shielding cover and a cooling fin; the atomizing sheet oscillating circuit comprises an atomizing sheet and an oscillating driving circuit electrically connected with the atomizing sheet; the first end of the atomizing sheet oscillating circuit is connected with a power supply, the second end of the atomizing sheet oscillating circuit is grounded, and the atomizing sheet oscillating circuit is electrically connected with the controller; the shielding cover is electrically connected with a power supply; the radiating fin is electrically connected with a power supply; the shielding cover and the radiating fins cover the atomizing plate oscillating circuit, so that the atomizing plate oscillating circuit is positioned in the projection range of the shielding cover and the radiating fins. According to the atomizer circuit, the shielding cover and the radiating fins are arranged, and cover the atomizing plate oscillating circuit to form the shielding capacitor, so that interference radiation signals generated by the atomizing plate oscillating circuit can be well absorbed by the shielding capacitor, and the atomizer can be detected through EMC.
Description
Technical Field
The utility model relates to the technical field of atomizers, in particular to an atomizer circuit and an atomizer.
Background
At present, when the atomizer/humidifier on the market works, the external radiation of the atomizer/humidifier is large, and electromagnetic interference is easily caused to other electrical equipment, so that the normal work of the other electrical equipment is influenced. Therefore, it is difficult for existing atomizers/humidifiers to meet the requirements for EMC (Electro Magnetic Compatibility, electromagnetic compatibility, meaning the ability of devices and systems to function properly in their electromagnetic environment and not to constitute an intolerable electromagnetic nuisance to anything in the environment) detection.
Disclosure of Invention
The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the utility model provides an atomizer circuit which can meet the EMC detection requirement.
In one aspect, an atomizer circuit according to an embodiment of the present utility model includes:
the atomizing sheet oscillating circuit comprises an atomizing sheet and an oscillating driving circuit electrically connected with the atomizing sheet; the first end of the atomizing sheet oscillating circuit is connected with a power supply, and the second end of the atomizing sheet oscillating circuit is grounded;
the controller is electrically connected with the atomizing sheet oscillating circuit;
the shielding cover is electrically connected with the power supply;
the radiating fin is electrically connected with the power supply and is used for radiating heat of the atomizing plate oscillating circuit;
the shielding cover and the radiating fin cover the atomizing sheet oscillating circuit, so that the atomizing sheet oscillating circuit is located in the projection range of the shielding cover and the radiating fin.
According to some embodiments of the utility model, the oscillation driving circuit includes:
the collector electrode of the triode is electrically connected with the power supply;
the first end of the first inductor is electrically connected with the emitter of the triode;
a second inductor, wherein a first end of the second inductor is electrically connected with a second end of the first inductor, and a second end of the second inductor is grounded;
the first end of the first capacitor is electrically connected with the base electrode of the triode, and the second end of the first capacitor is electrically connected with the power supply;
the first end of the first resistor is electrically connected with the base electrode of the triode;
the first end of the second capacitor is electrically connected with the second end of the first resistor, the second end of the second capacitor is electrically connected with the first end of the atomizing sheet, and the second end of the atomizing sheet is electrically connected with the power supply;
a third capacitor, wherein a first end of the third capacitor is electrically connected with a second end of the first resistor, and a second end of the third capacitor is electrically connected with a connection point between the first inductor and the second inductor;
and the first end of the third inductor is electrically connected with the second end of the first resistor, and the second end of the third inductor is electrically connected with the controller.
According to some embodiments of the utility model, the oscillation driving circuit and the controller further include:
a second resistor, wherein a first end of the second resistor is electrically connected with a second end of the third inductor;
a fourth capacitor, wherein a first end of the fourth capacitor is electrically connected with a second end of the second resistor, and a second end of the fourth capacitor is grounded;
a third resistor, wherein a first end of the third resistor is electrically connected with a second end of the third inductor;
a fourth resistor, wherein a first end of the fourth resistor is electrically connected with a second end of the third resistor, and a second end of the fourth resistor is grounded;
a fifth capacitor, wherein a first end of the fifth capacitor is electrically connected with a connection point between the third resistor and the fourth resistor, and a second end of the fifth capacitor is grounded;
and the first end of the fifth resistor is electrically connected with the first end of the fifth capacitor, and the second end of the fifth resistor is electrically connected with the controller.
According to some embodiments of the utility model, the second inductor is a common mode inductor.
According to some embodiments of the utility model, the transistor is of type BU406.
According to some embodiments of the utility model, the atomizer circuit further comprises a diode, an anode terminal of the diode being electrically connected to an emitter of the triode, and a cathode terminal of the diode being electrically connected to the power supply.
According to some embodiments of the utility model, a filter unit is further arranged between the atomizing plate oscillating circuit and the power supply.
According to some embodiments of the utility model, the filter unit comprises a filter capacitor connected in parallel with the power supply.
On the other hand, the atomizer according to the embodiment of the utility model comprises the atomizer circuit according to the embodiment of the aspect.
According to the atomizer circuit and the atomizer provided by the embodiment of the utility model, the atomizer circuit and the atomizer have at least the following beneficial effects: through setting up shield cover and fin to make shield cover and fin cover atomizing piece oscillating circuit, and shield cover, fin and atomizing piece oscillating circuit's one end all are connected with the power, constitute equipotential, and form the electric field effect with GND, constitute shielding electric capacity, can let the interference radiation signal that atomizing piece oscillating circuit produced absorbed by shielding electric capacity well, thereby make the atomizer can detect through EMC.
Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.
Drawings
The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
FIG. 1 is a schematic circuit diagram of an atomizer circuit according to an embodiment of the present utility model;
FIG. 2 is an equivalent schematic diagram of an atomizer circuit according to an embodiment of the present utility model;
reference numerals:
an atomizing plate oscillation circuit 100, a shield 200, and a heat sink 300.
Detailed Description
Reference will now be made in detail to the present embodiments of the present utility model, examples of which are illustrated in the accompanying drawings, wherein the accompanying drawings are used to supplement the description of the written description so that one can intuitively and intuitively understand each technical feature and overall technical scheme of the present utility model, but not to limit the scope of the present utility model.
In the description of the present utility model, a number means one or more, a number means two or more, and greater than, less than, exceeding, etc. are understood to not include the present number, and above, below, within, etc. are understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present utility model, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present utility model can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.
As shown in fig. 1, an atomizer circuit according to an embodiment of the present utility model includes an atomizing plate oscillation circuit 100, a controller (not shown, a processor such as a single-chip microcomputer may be used), a shield case 200, and a heat sink 300; the atomizing sheet oscillation circuit 100 comprises an atomizing sheet DT1 and an oscillation driving circuit electrically connected with the atomizing sheet DT1, wherein the oscillation driving circuit is used for driving the atomizing sheet DT1 to vibrate according to a signal of the controller; the first end of the atomizing plate oscillation circuit 100 is connected with a power supply VDD, the second end of the atomizing plate oscillation circuit 100 is grounded, and the atomizing plate oscillation circuit 100 is also electrically connected with the controller through a connector CN 1; shield 200 is electrically connected to power supply VDD; the heat sink 300 is electrically connected to the power supply VDD, and the heat sink 300 is used for dissipating heat from the aerosol oscillating circuit 100; the shield 200 and the heat sink 300 cover the atomizing plate oscillator circuit 100 such that the atomizing plate oscillator circuit 100 is positioned within the projection range of the shield 200 and the heat sink 300.
Specifically, referring to fig. 2, the atomizing plate oscillation circuit 100 shown in fig. 1 can be equivalent to a circuit formed by an equivalent inductance L, an equivalent capacitance C and an atomizing plate DT1 in fig. 2; since the shield 200 and the heat sink 300 cover the atomizing oscillator 100 and the shield 200 and the heat sink 300 are electrically connected to the power supply VDD, the shield 200 and the heat sink 300 can be equivalent to one plate (CP Upper part ) And the GND ground to which the circuit is connected forms the other plate (CP Lower part(s) ). Since the atomizing plate oscillation circuit 100 is located between the shielding capacitors CP, the energy leaked from the circuit during oscillation can be absorbed by the shielding capacitors CP, so that the interference signal generated by the circuit is minimized. Therefore, according to the atomizer circuit of the present utility model, the shielding case 200 and the heat sink 300 are provided, the atomizer oscillator circuit 100 is located within the projection range of the shielding case 200 and the heat sink 300, and one ends of the shielding case 200, the heat sink 300 and the atomizer oscillator circuit 100 are all connected to the power supply VDD to form an equipotential, and an electric field effect is formed with GND, so that the interference radiation signal can be well absorbed by the shielding capacitor CP, and the atomizer can be detected by EMC. Meanwhile, the radiating fin 300 can radiate heat of the atomizing plate oscillating circuit 100, so that the influence of overhigh temperature on the normal operation of the circuit is prevented.
Further, as shown in fig. 1, in some embodiments of the present utility model, the oscillation driving circuit includes a transistor Q1, a first inductor L1, a second inductor L2, a first capacitor C1, a first resistor R1, a second capacitor C2, a third capacitor C3, and a third inductor L3; the collector of the triode Q1 is electrically connected with a power supply VDD, the emitter of the triode Q1 is electrically connected with the first end of the first inductor L1, the second end of the first inductor L1 is electrically connected with the first end of the second inductor L2, the second end of the second inductor L2 is grounded, the base of the triode Q1 is electrically connected with the first end of the first capacitor C1, and the second end of the first capacitor C1 is electrically connected with the power supply VDD; the first end of the first resistor R1 is electrically connected with the base electrode of the triode Q1, the second end of the first resistor R1 is electrically connected with the first end of the second capacitor C2, the second end of the second capacitor C2 is electrically connected with the first end of the atomizing sheet DT1, and the second end of the atomizing sheet DT1 is electrically connected with the power supply VDD; the first end of the third capacitor C3 is electrically connected with the second end of the first resistor R1, and the second end of the third capacitor C3 is electrically connected with a connecting point between the first inductor L1 and the second inductor L2; the first end of the third inductor L3 is electrically connected to the second end of the first resistor R1, and the second end of the third inductor L3 is electrically connected to the controller through the connector CN 1.
The triode Q1, the first capacitor C1 and the first inductor L1 form a three-point oscillating circuit, and since the atomizing sheet DT1 (transducer) can be regarded as a natural frequency crystal oscillator, it is bridged between the base of the triode Q1 and the power supply VDD through the second capacitor C2. The atomizing sheet DT1 is excited by the oscillating circuit to generate oscillation, and the oscillating signal is fed back to the base electrode of the triode Q1 through the second capacitor C2, so that the oscillating circuit resonates at the natural frequency of the atomizing sheet DT1, the peak-to-peak value of the oscillation amplitude is about 50V-80V, and the higher the voltage is, the larger the atomizing amount is (within the pressure resistance of the atomizing sheet DT1 itself). The controller can change the base current of the triode Q1 by adjusting the duty ratio of the PWM signal, so as to change the voltage at two ends of the atomization sheet DT1 and further change the power and atomization amount of the atomization sheet DT 1.
As shown in fig. 1, in some embodiments of the present utility model, transistor Q1 may be of the type BU406, where BU406 is a high power transistor of NPN silicon material.
As shown in fig. 1, in some embodiments of the present utility model, the second inductor L2 is a common-mode inductor, and the common-mode inductor can filter electromagnetic interference signals of a common mode, and perform an EMI (Electromagnetic Interference ) filtering function, so as to inhibit electromagnetic waves generated in a circuit from radiating outwards.
As shown in fig. 1, in some embodiments of the present utility model, the oscillation driving circuit and the controller further include a second resistor R2, a fourth capacitor C4, a third resistor R3, a fourth resistor R4, a fifth capacitor C5, and a fifth resistor R5; the first end of the second resistor R2 is electrically connected with the second end of the third inductor L3, the second end of the second resistor R2 is electrically connected with the first end of the fourth capacitor C4, and the second end of the fourth capacitor C4 is grounded; the first end of the third resistor R3 is electrically connected with the second end of the third inductor L3, the second end of the third resistor R3 is electrically connected with the first end of the fourth resistor R4, and the second end of the fourth resistor R4 is grounded; the first end of the fifth capacitor C5 is electrically connected with the connection point between the third resistor R3 and the fourth resistor R4, and the second end of the fifth capacitor C5 is grounded; the first end of the fifth resistor R5 is electrically connected to the first end of the fifth capacitor C5, and the second end of the fifth resistor R5 is electrically connected to the controller through the connector CN 1.
As shown in fig. 1, in some embodiments of the utility model, the atomizer circuit further comprises a diode D1, an anode terminal of the diode D1 being electrically connected to an emitter of the transistor Q1, and a cathode terminal of the diode D1 being electrically connected to the power supply VDD.
In some embodiments of the present utility model, a filtering unit is further disposed between the aerosol chip oscillating circuit 100 and the power supply VDD, and the filtering unit is configured to filter the power supply VDD to filter the interference signal. As shown in fig. 1, the filtering unit includes a filtering capacitor C6, and the filtering capacitor C6 is connected in parallel to the positive and negative ends of the power supply.
In another aspect, the utility model further provides a nebulizer, which comprises the nebulizer circuit.
According to the atomizer of the present utility model, by adopting the above-mentioned atomizer circuit, by providing the shield case 200 and the heat sink 300, and positioning the atomizing plate oscillation circuit 100 within the projection range of the shield case 200 and the heat sink 300, and connecting one ends of the shield case 200, the heat sink 300 and the atomizing plate oscillation circuit 100 to the power supply VDD, an equipotential is formed, and an electric field effect is formed with GND, so that the interference radiation signal can be well absorbed by the shield capacitor CP, and the atomizer can be detected by EMC.
In the description of the present specification, a description referring to the terms "one embodiment," "further embodiment," "some specific embodiments," or "some examples," etc., means that a particular feature, structure, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.
Claims (9)
1. An atomizer circuit, comprising:
the atomizing sheet oscillating circuit comprises an atomizing sheet and an oscillating driving circuit electrically connected with the atomizing sheet; the first end of the atomizing sheet oscillating circuit is connected with a power supply, and the second end of the atomizing sheet oscillating circuit is grounded;
the controller is electrically connected with the atomizing sheet oscillating circuit;
the shielding cover is electrically connected with the power supply;
the radiating fin is electrically connected with the power supply and is used for radiating heat of the atomizing plate oscillating circuit;
the shielding cover and the radiating fin cover the atomizing sheet oscillating circuit, so that the atomizing sheet oscillating circuit is located in the projection range of the shielding cover and the radiating fin.
2. The nebulizer circuit of claim 1, wherein the oscillation drive circuit comprises:
the collector electrode of the triode is electrically connected with the power supply;
the first end of the first inductor is electrically connected with the emitter of the triode;
a second inductor, wherein a first end of the second inductor is electrically connected with a second end of the first inductor, and a second end of the second inductor is grounded;
the first end of the first capacitor is electrically connected with the base electrode of the triode, and the second end of the first capacitor is electrically connected with the power supply;
the first end of the first resistor is electrically connected with the base electrode of the triode;
the first end of the second capacitor is electrically connected with the second end of the first resistor, the second end of the second capacitor is electrically connected with the first end of the atomizing sheet, and the second end of the atomizing sheet is electrically connected with the power supply;
a third capacitor, wherein a first end of the third capacitor is electrically connected with a second end of the first resistor, and a second end of the third capacitor is electrically connected with a connection point between the first inductor and the second inductor;
and the first end of the third inductor is electrically connected with the second end of the first resistor, and the second end of the third inductor is electrically connected with the controller.
3. The atomizer circuit according to claim 2, wherein between said oscillating drive circuit and said controller further comprises:
a second resistor, wherein a first end of the second resistor is electrically connected with a second end of the third inductor;
a fourth capacitor, wherein a first end of the fourth capacitor is electrically connected with a second end of the second resistor, and a second end of the fourth capacitor is grounded;
a third resistor, wherein a first end of the third resistor is electrically connected with a second end of the third inductor;
a fourth resistor, wherein a first end of the fourth resistor is electrically connected with a second end of the third resistor, and a second end of the fourth resistor is grounded;
a fifth capacitor, wherein a first end of the fifth capacitor is electrically connected with a connection point between the third resistor and the fourth resistor, and a second end of the fifth capacitor is grounded;
and the first end of the fifth resistor is electrically connected with the first end of the fifth capacitor, and the second end of the fifth resistor is electrically connected with the controller.
4. The nebulizer circuit of claim 2, wherein the second inductance is a common mode inductance.
5. The atomizer circuit according to claim 2, wherein said transistor is of the type BU406.
6. The nebulizer circuit of claim 2, further comprising a diode, an anode terminal of the diode being electrically connected to an emitter of the triode, and a cathode terminal of the diode being electrically connected to the power supply.
7. The atomizer circuit according to claim 1, wherein a filter unit is further provided between said atomizer plate oscillating circuit and said power supply.
8. The nebulizer circuit of claim 7, wherein the filter unit comprises a filter capacitor connected in parallel with the power supply.
9. A nebulizer comprising a nebulizer circuit as claimed in any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321034523.9U CN219943385U (en) | 2023-04-28 | 2023-04-28 | Atomizer circuit and atomizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321034523.9U CN219943385U (en) | 2023-04-28 | 2023-04-28 | Atomizer circuit and atomizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219943385U true CN219943385U (en) | 2023-11-03 |
Family
ID=88537134
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321034523.9U Active CN219943385U (en) | 2023-04-28 | 2023-04-28 | Atomizer circuit and atomizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219943385U (en) |
-
2023
- 2023-04-28 CN CN202321034523.9U patent/CN219943385U/en active Active
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| GR01 | Patent grant | ||
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