CN215141431U - Drive circuit of atomizing piece and atomizer - Google Patents
Drive circuit of atomizing piece and atomizer Download PDFInfo
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- CN215141431U CN215141431U CN202120740541.3U CN202120740541U CN215141431U CN 215141431 U CN215141431 U CN 215141431U CN 202120740541 U CN202120740541 U CN 202120740541U CN 215141431 U CN215141431 U CN 215141431U
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- 238000000889 atomisation Methods 0.000 claims abstract description 28
- 239000003990 capacitor Substances 0.000 claims abstract description 7
- 238000001514 detection method Methods 0.000 claims description 14
- HEZMWWAKWCSUCB-PHDIDXHHSA-N (3R,4R)-3,4-dihydroxycyclohexa-1,5-diene-1-carboxylic acid Chemical compound O[C@@H]1C=CC(C(O)=O)=C[C@H]1O HEZMWWAKWCSUCB-PHDIDXHHSA-N 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
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Abstract
The utility model discloses a drive circuit and atomizer of atomizing piece, this drive circuit includes: a power supply circuit; the first end of the resonant circuit is connected with the output end of the power supply circuit; the resonant circuit comprises an atomization sheet and a first inductor which are mutually connected in series, and the atomization sheet is equivalent to a capacitor; the control end of the first switch circuit is used for receiving a first control signal, the first end of the first switch circuit is connected with the second end of the resonance circuit, and the second end of the first switch circuit is grounded. So set up, through adopting resonant circuit, utilize resonant circuit's the principle of stepping up, enlarge the voltage of power supply circuit output to need not to set up complicated DCDC boost circuit or transformer boost circuit, reduce drive circuit's the whole area of circuit board, can reduce the volume of atomizer, make the atomizer can carry out miniaturized design.
Description
Technical Field
The utility model relates to an atomizer technical field, concretely relates to drive circuit and atomizer of atomizing piece.
Background
Along with the development of atomizers, the atomizers are gradually designed in a small size. The atomizing sheet in the atomizer belongs to a piezoelectric ceramic device, so that electric energy is converted into mechanical energy and ultrasonic oscillation is generated, liquid is extruded by ultrasonic waves, and the liquid is atomized through micropores of the atomizing sheet.
The atomizer is provided with an atomizing sheet and a driving circuit of the atomizing sheet, the driving voltage of the atomizing sheet is usually about 80V (volt), the atomizing sheet is powered by a dry battery or a rechargeable battery about 3V, and if the voltage about 3V is increased to about 80V, a booster circuit or a booster transformer needs to be arranged in the driving circuit.
However, the atomizing sheet is a relatively large-volume atomizing sheet drive circuit. If a booster circuit or a booster transformer is provided in the drive circuit, the whole area of the circuit board of the drive circuit is increased, which is not in accordance with the design of miniaturization of the atomizer.
SUMMERY OF THE UTILITY MODEL
Therefore, the to-be-solved technical problem of the utility model lies in overcoming among the prior art drive circuit and being provided with boost circuit or step up transformer for drive circuit's the whole area of circuit board is great, can't be with the miniaturized problem of atomizer, thereby provides a drive circuit and atomizer of atomizing piece.
In order to achieve the above object, an embodiment of the present invention provides a driving circuit of an atomizing plate, including: a power supply circuit; the first end of the resonant circuit is connected with the output end of the power supply circuit; the resonant circuit comprises an atomization sheet and a first inductor which are mutually connected in series, and the atomization sheet is equivalent to a capacitor; the control end of the first switch circuit is used for receiving a first control signal, the first end of the first switch circuit is connected with the second end of the resonance circuit, and the second end of the first switch circuit is grounded.
Optionally, the first inductor is connected to the power circuit, and the atomization plate is connected to the first end of the first switch circuit.
Optionally, the first switching circuit comprises: the control end of the first MOS tube receives the first control signal through a first resistor, the first end of the first MOS tube is connected with the second end of the resonant circuit, and the second end of the first MOS tube is grounded; and one end of the third resistor is connected with the control end of the first MOS tube, and the other end of the third resistor is connected with the second end of the first MOS tube.
Optionally, the driving circuit further comprises: one end of the second inductor is connected with the output end of the power supply circuit, and the other end of the second inductor is connected with the first end of the first switch circuit; and the control end of the second switch circuit is used for receiving a second control signal, the first end of the second switch circuit is connected between the first inductor and the atomizing sheet, and the second end of the second switch circuit is grounded.
Optionally, the driving circuit further comprises: a first output end of the controller is connected with the control end of the first switch circuit, and a second output end of the controller is connected with the control end of the second switch circuit; the first output end of the controller is used for outputting a first control signal, and the second output end of the controller is used for outputting a second control signal.
Optionally, the first switching circuit and the second switching circuit are alternately turned on.
Optionally, the second switching circuit comprises: a control end of the second MOS tube receives the second control signal through a second resistor, a first end of the second MOS tube is connected between the first inductor and the atomizing sheet, and a second end of the second MOS tube is grounded; and one end of the fourth resistor is connected with the control end of the second MOS tube, and the other end of the fourth resistor is connected with the second end of the second MOS tube.
Optionally, the driving circuit further comprises: and the first end of the load circuit is simultaneously connected with the second end of the first switch circuit and the second end of the second switch circuit, and the second end of the load circuit is grounded.
Optionally, the load circuit comprises: and a first end of the fifth resistor is connected with the second end of the first switch circuit and the second end of the second switch circuit at the same time, and a second end of the fifth resistor is grounded.
Optionally, the driving circuit further comprises: the input end of the detection circuit is connected with the first end of the load circuit; and the output end of the detection circuit is connected with the input end of the controller.
The embodiment of the utility model provides a still provide an atomizer, this atomizer includes: a driving circuit for an atomizing plate according to any of the above embodiments.
Compared with the prior art, the utility model, have following advantage:
1. the embodiment of the utility model provides a drive circuit of atomizing piece, this drive circuit includes: a power supply circuit; the first end of the resonant circuit is connected with the output end of the power supply circuit; the resonant circuit comprises an atomization sheet and a first inductor which are mutually connected in series, and the atomization sheet is equivalent to a capacitor; and the control end of the first switch circuit is used for receiving a first control signal, the first end of the first switch circuit is connected with the second end of the resonance circuit, and the second end of the first switch circuit is grounded.
So set up, through adopting resonant circuit, utilize resonant circuit's the principle of stepping up, enlarge the voltage of power supply circuit output to need not to set up complicated DCDC boost circuit or transformer boost circuit, reduce drive circuit's the whole area of circuit board, can reduce the volume of atomizer, make the atomizer can carry out miniaturized design.
2. The embodiment of the utility model provides a through exporting first control signal and second control signal simultaneously to make first control signal the same with second control signal's frequency, the range is opposite, makes the utility model provides an in the embodiment atomizing piece both ends have the voltage to exist all the time, can let ultrasonic atomization piece both ends work in turn, thereby the atomizer can work at full load, has obviously improved atomization efficiency.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a modular circuit diagram of a driving circuit of an atomizing plate according to an embodiment of the present invention;
fig. 2 is a specific circuit diagram of a driving circuit of an atomizing plate according to an embodiment of the present invention;
fig. 3 is a simplified circuit diagram of a drive circuit for an atomizing plate according to an embodiment of the present invention;
fig. 4 is an equivalent circuit diagram of the driving circuit of the atomization plate according to the embodiment of the present invention when one of the switch circuits is closed.
Reference numerals:
10. a power supply circuit; 20. a resonant circuit; 30. a first switching circuit; 40. a second switching circuit; 50. a load circuit; 60. a detection circuit;
r1, a first resistor; r2, a second resistor; r3, third resistor; r4, fourth resistor; r5, fifth resistor; r6, sixth resistor;
l1, a first inductor; l2, a second inductor; c1, a first capacitance; c2, a second capacitor; VCC and a power supply;
q1, a first MOS tube; q2, second MOS pipe.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present 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.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; the two elements may be directly connected or indirectly connected through an intermediate medium, or may be communicated with each other inside the two elements, or may be wirelessly connected or wired connected. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.
Along with the development of atomizers, the atomizers are gradually designed in a small size. The atomizing piece in the atomizer belongs to a piezoceramics device itself, makes the electric energy change into mechanical energy and produces the ultrasonic oscillation, and the shock wave makes liquid produce the extrusion, atomizes liquid through the micropore of atomizing piece. The atomizer is provided with an atomizing sheet and a driving circuit of the atomizing sheet, the driving voltage of the atomizing sheet is usually about 80V, the atomizing sheet is powered by a dry battery or a rechargeable battery with about 3V, and if the voltage of about 3V is increased to about 80V, a booster circuit needs to be arranged in the driving circuit. However, the atomizing sheet is a relatively large-volume atomizing sheet drive circuit. If the booster circuit is arranged in the drive circuit, the whole area of a circuit board of the drive circuit is increased, and the design of miniaturization of the atomizer is not met.
Therefore, the to-be-solved technical problem of the utility model lies in overcoming the problem that can't miniaturize the atomizer among the prior art to a drive circuit and atomizer of atomizing piece are provided.
Example 1
As shown in fig. 1 to 4, an embodiment of the present invention provides a driving circuit of an atomizing plate, including: a power supply circuit 10, a resonance circuit 20, and a first switch circuit 30.
In the embodiment of the present invention, the power circuit 10 is a power supply VCC, which can be a dry battery or other small power supplies for the driving circuit. A first terminal of the resonant circuit 20 is connected to an output terminal of the power supply circuit 10 and a second terminal of the resonant circuit 20 is connected to a first terminal of a first switching circuit 30. In the embodiment of the present invention, the resonant circuit 20 can be a series resonant circuit, and the series resonant circuit includes the atomization piece C1 and the first inductance L1 that are connected in series, the atomization piece C1 can be equivalent to an electric capacity. The control terminal of the first switch circuit 30 is configured to receive a first control signal, and the second terminal of the first switch circuit 30 is grounded.
So set up, through adopting resonant circuit 20, utilize resonant circuit 20's the principle of stepping up, amplify the voltage that power supply circuit 10 output to need not to set up complicated DCDC boost circuit or transformer boost circuit, reduce drive circuit's the whole area of circuit board, can reduce the volume of atomizer, make the atomizer can carry out miniaturized design.
Moreover, since the driving voltage of the atomizing plate C1 in the prior art is usually about 80V, a DCDC boost circuit can be used to obtain 80V driving voltage conventionally, and the DCDC boost circuit needs a boost chip and its peripheral circuits, and may not boost to 80V at a time, and may need to boost twice, 3V to 24V, and 24V to 80V, and the cost of the chip and the peripheral circuits required by the two boosting processes is at least not less than 5 yuan. And if the cost of the step-up transformer is not low, the cost of one step-up transformer and peripheral circuits should not be lower than 5 yuan. The cost of using only the resonant circuit 20 and the switching circuit in this embodiment should be less than 1 dollar. The cost in this embodiment is therefore significantly lower than the cost of the first two solutions.
Of course, the resonant circuit 20 can be a series resonant circuit or a parallel resonant circuit, and the embodiment of the present invention does not limit this, and those skilled in the art can change the resonant circuit according to actual situations as long as the same technical effect can be achieved.
Optionally, in some embodiments of the present invention, the first inductor L1 in the resonant circuit 20 is connected to the power circuit 10, and the atomization plate C1 is connected to the first end of the first switch circuit 30.
Specifically, the first switch circuit 30 may include a first MOS transistor Q1, a control terminal of the first MOS transistor Q1 receives the first control signal through a first resistor R1, a first terminal of the first MOS transistor Q1 is connected to the second terminal of the resonant circuit 20, and a second terminal of the first MOS transistor Q1 is grounded. The first control signal may be a PWM signal, i.e., PWM1 in the figure. The first MOS transistor Q1 controls its on/off by receiving a PWM signal, so that resonance can be generated in the circuit, and the atomizing plate C1 operates, and the frequency of PWM needs to be controlled according to the specific resonance frequency of the atomizing plate C1. The first switch circuit 30 further includes a third resistor R3, wherein one end of the third resistor R3 is connected to the control terminal of the first MOS transistor Q1, and the other end of the third resistor R3 is connected to the second terminal of the first MOS transistor Q1.
Optionally, in the embodiment of the present invention, the driving circuit further includes a second inductor L2 and a second switching circuit 40. One end of the second inductor L2 is connected to the output terminal of the power circuit 10, and the other end of the second inductor L2 is connected to the first end of the first switch circuit 30. The control end of the second switch circuit 40 is configured to receive a second control signal, the first end of the second switch circuit 40 is connected between the first inductor L1 and the atomization plate C1, and the second end of the second switch circuit 40 is grounded. In addition, the first control signal and the second control signal are output simultaneously, the frequency is the same, the amplitude is the same, and the directions are opposite.
Optionally, in the embodiment of the present invention, the driving circuit further includes a controller, the first output end of the controller is connected to the control end of the first switch circuit, the second output end of the controller is connected to the control end of the second switch circuit, the first output end of the controller is used for outputting the first control signal, and the second output end of the controller is used for outputting the second control signal.
The embodiment of the utility model provides a through exporting first control signal and second control signal simultaneously to make first control signal the same with second control signal's frequency, range size equidirectional opposite, make first switch circuit 30 with second switch circuit 40 opens in turn, thereby the embodiment of the utility model provides an atomizing piece C1 both ends have the voltage to exist all the time, can let ultrasonic atomization piece C1 both ends work in turn, and the atomizer can work at full load, has obviously improved atomization efficiency.
Because voltage is applied to the two ends of the atomizing sheet C1, the two ends of the atomizing sheet C1 are divided into a positive end and a negative end, the conventional unilateral resonance enables the atomizing sheet C1 to have a resonance process only once in unit time, and the first control signal and the second control signal are output simultaneously in the embodiment, so that the circuit has bilateral resonance, and because the number of times of one-time resonance is increased in unit time, the natural atomization efficiency is synchronously improved.
Optionally, in some embodiments of the present invention, the second switch circuit 40 may be a second MOS transistor Q2, and the control terminal of the second MOS transistor Q2 receives the second control signal through a second resistor R2, wherein the second control signal may be a PWM signal, that is, the PWM2 in the figure. A first terminal of a second MOS transistor Q2 is connected between the first inductor L1 and the atomization sheet C1, and a second terminal of the second MOS transistor Q2 is grounded. The second switch circuit 40 further includes a fourth resistor R4, wherein one end of the fourth resistor R4 is connected to the control terminal of the second MOS transistor Q2, and the other end of the fourth resistor R4 is connected to the second terminal of the second MOS transistor Q2.
Of course, the present embodiment is only an example of the type of the second switch circuit 40, and the present invention is not limited thereto, and those skilled in the art may change the type of the second switch circuit 40 according to actual situations, and may achieve the same technical effect.
Optionally, in some embodiments of the present invention, the driving circuit further includes a load circuit 50, the load circuit 50 is configured to divide a voltage in the circuit, a first end of the load circuit 50 is connected to the second end of the first switch circuit 30 and the second end of the second switch circuit 40, and a second end of the load circuit 50 is connected to ground.
Specifically, the load circuit 50 may include a fifth resistor R5, a first end of the fifth resistor R5 is connected to the second end of the first switch circuit 30 and the second end of the second switch circuit 40, and a second end of the fifth resistor R5 is connected to ground.
Optionally, in some embodiments of the present invention, the driving circuit further includes a detection circuit 60, an input end of the detection circuit 60 is connected to the first end of the load circuit 50, an output end of the detection circuit 60 is connected to a controller, and the controller is configured to output the first control signal and the second control signal.
Specifically, the detection circuit 60 may include a detection chip, an input terminal of which is connected to the first terminal of the load circuit 50 through a sixth resistor R6, and an output terminal of which is connected to the input terminal of the controller, a sixth resistor R6, and a second capacitor C2. One end of the second capacitor C2 is connected to the input end of the detection chip, and the other end is grounded. The detection circuit 60 is used for detecting the operating current and the operating voltage in the driving circuit, so as to ensure the normal operation of the driving circuit, and when the operating current and the operating voltage are abnormal, the feedback signal is transmitted to the controller in time, so that the controller can stop outputting the first control signal and the second control signal.
Of course, this embodiment is only an example of the circuit parameter that can be detected by the detection circuit 60, but the present invention is not limited thereto, and a person skilled in the art may change the detected circuit parameter according to actual situations, for example, only current or voltage may be detected, and the same technical effect may be achieved.
Example 2
The embodiment of the utility model provides a still provide an atomizer, this atomizer includes: a driving circuit for an atomizing plate according to any of the above embodiments.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.
Claims (11)
1. A drive circuit for an atomizing plate, comprising:
a power supply circuit (10);
a resonant circuit (20), a first end of the resonant circuit (20) being connected to an output of the power circuit (10); the resonant circuit (20) comprises an atomization sheet (C1) and a first inductor (L1) which are connected in series, and the atomization sheet (C1) is equivalent to a capacitor;
a first switch circuit (30), a control terminal of the first switch circuit (30) is configured to receive a first control signal, a first terminal of the first switch circuit (30) is connected to a second terminal of the resonant circuit (20), and a second terminal of the first switch circuit (30) is grounded.
2. The driving circuit of the atomization plate of claim 1, wherein the first inductor (L1) is connected with the power circuit (10), and the atomization plate (C1) is connected with a first end of the first switch circuit (30).
3. The driving circuit of an atomizing plate according to claim 2, characterized in that, the first switching circuit (30) comprises:
a first MOS transistor (Q1), a control terminal of the first MOS transistor (Q1) receives the first control signal through a first resistor (R1), a first terminal of the first MOS transistor (Q1) is connected with a second terminal of the resonant circuit (20), and a second terminal of the first MOS transistor (Q1) is grounded;
and one end of the third resistor (R3) is connected with the control end of the first MOS transistor (Q1), and the other end of the third resistor (R3) is connected with the second end of the first MOS transistor (Q1).
4. The driving circuit of an atomizing plate according to any one of claims 1 to 3, characterized by further comprising:
a second inductor (L2), one end of the second inductor (L2) being connected with the output terminal of the power supply circuit (10), the other end of the second inductor (L2) being connected with the first end of the first switch circuit (30);
a second switch circuit (40), a control terminal of the second inductor (L2) is used for receiving a second control signal, a first terminal of the second inductor (L2) is connected between the first inductor (L1) and the atomization sheet (C1), and a second terminal of the second switch circuit (40) is grounded.
5. The atomization plate driving circuit according to claim 4, further comprising:
a controller, a first output terminal of the controller is connected with a control terminal of the first switch circuit (30), and a second output terminal of the controller is connected with a control terminal of the second switch circuit (40); the first output end of the controller is used for outputting a first control signal, and the second output end of the controller is used for outputting a second control signal.
6. The driving circuit of an atomizing plate according to claim 5, characterized in that the first switching circuit (30) and the second switching circuit (40) are alternately turned on.
7. The driving circuit of the atomization plate according to claim 6, wherein the second switching circuit (40) comprises:
a second MOS transistor (Q2), a control terminal of the second MOS transistor (Q2) receiving the second control signal through a second resistor (R2), a first terminal of the second MOS transistor (Q2) being connected between the first inductor (L1) and the atomization plate (C1), and a second terminal of the second MOS transistor (Q2) being grounded;
and a fourth resistor (R4), wherein one end of the fourth resistor (R4) is connected with the control end of the second MOS transistor (Q2), and the other end of the fourth resistor (R4) is connected with the second end of the second MOS transistor (Q2).
8. The atomization plate driving circuit of claim 7, further comprising:
a load circuit (50), wherein a first end of the load circuit (50) is connected with a second end of the first switch circuit (30) and a second end of the second switch circuit (40) at the same time, and a second end of the load circuit (50) is grounded.
9. The driving circuit of an atomizing plate according to claim 8, characterized in that the load circuit (50) comprises:
a fifth resistor (R5), a first end of the fifth resistor (R5) is respectively connected with the second end of the first switch circuit (30) and the second end of the second switch circuit (40), and a second end of the fifth resistor (R5) is grounded.
10. The driving circuit of the atomization plate according to claim 8 or 9, further comprising:
a detection circuit (60), an input terminal of the detection circuit (60) being connected to a first terminal of the load circuit (50); the output end of the detection circuit (60) is connected with the input end of the controller.
11. An atomizer, comprising: a driving circuit of an atomizing plate according to any one of claims 1 to 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120740541.3U CN215141431U (en) | 2021-04-12 | 2021-04-12 | Drive circuit of atomizing piece and atomizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120740541.3U CN215141431U (en) | 2021-04-12 | 2021-04-12 | Drive circuit of atomizing piece and atomizer |
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| Publication Number | Publication Date |
|---|---|
| CN215141431U true CN215141431U (en) | 2021-12-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202120740541.3U Active CN215141431U (en) | 2021-04-12 | 2021-04-12 | Drive circuit of atomizing piece and atomizer |
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|---|---|
| CN (1) | CN215141431U (en) |
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2021
- 2021-04-12 CN CN202120740541.3U patent/CN215141431U/en active Active
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