CN215531663U - Drive circuit of electronic atomization device and electronic atomization device - Google Patents
Drive circuit of electronic atomization device and electronic atomization device Download PDFInfo
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Abstract
The utility model provides a drive circuit of an electronic atomization device and the electronic atomization device, wherein the drive circuit comprises: a light emitting element; a power supply device connected to the light emitting element to supply a power supply voltage, wherein a rated voltage of the power supply device is less than 3.7V; and the sensing device is connected with the light-emitting element and a loop where the power supply device is located so as to control the light-emitting element to emit light under the driving of the power supply device, wherein the conduction voltage of the light-emitting element is smaller than the power supply voltage corresponding to the rated voltage of the power supply device, and the light-emitting element is at least one of a red LED, a yellow LED, an orange LED and a yellow-green LED. Therefore, the suction times of the electronic atomization device can be increased, and the light-emitting element can emit light.
Description
Technical Field
The present invention relates to the field of electronic atomization technologies, and in particular, to a driving circuit of an electronic atomization apparatus and an electronic atomization apparatus.
Background
In the prior art, the electronic atomization device generally uses a general lithium battery for power supply, the rated voltage of the general lithium battery is 3.7V, and the output voltage is 2.5V-4.2V, but the battery capacity is low, and the number of times that the corresponding electronic atomization device can suck is greatly limited.
SUMMERY OF THE UTILITY MODEL
The utility model provides a drive circuit of an electronic atomization device and the electronic atomization device, which can further improve the pumping frequency of the electronic atomization device.
In order to solve the above technical problems, a first technical solution provided by the present invention is: provided is a drive circuit of an electronic atomization device, including: a light emitting element; a power supply device connected to the light emitting element to supply a power supply voltage, wherein a rated voltage of the power supply device is less than 3.7V; the sensing device is connected with a loop where the light-emitting element and the power supply device are located so as to control the light-emitting element to emit light under the driving of the power supply device; the on-state voltage of the light-emitting element is smaller than the power supply voltage corresponding to the rated voltage of the power supply device, and the light-emitting element is at least one of a red LED, a yellow LED, an orange LED and a yellow-green LED.
The sensing device is used for sending a control signal to a loop where the light-emitting element and the power supply device are located so as to adjust the voltage difference between two ends of the light-emitting element to drive the light-emitting element to emit light or not; wherein when the control signal is at a first level, the light emitting element is non-emitting; when the control signal is at a second level, the light emitting element emits light.
Wherein the first level is a logic high state and the second level is a logic low state.
Wherein the rated voltage of the power supply device is 2.8V.
Wherein the power supply voltage of the power supply device ranges from 1.6V to 3.6V.
Wherein the on-voltage of the light emitting element is in a range of 1.6V to 2.4V.
Wherein the operating voltage of the sensing means matches the range of the supply voltage of the power supply means to operate normally at the supply voltage provided by the power supply means.
Wherein, the power supply device is a lithium battery.
Wherein the sensing device comprises: the sensor is used for detecting the change of the air flow and outputting a detection signal when the change of the air flow is detected; and the controller is used for receiving the detection signal output by the sensor so as to control the light-emitting element to emit light under the driving of the power supply voltage.
Wherein the sensing device is a MEMS sensor.
In order to solve the above technical problems, a second technical solution provided by the present invention is: there is provided an electronic atomization device including the drive circuit of the electronic atomization device of any one of the above.
The utility model has the advantages that the utility model is different from the prior art, the power supply device with the rated voltage less than 3.7V is used for providing the power supply voltage for the light-emitting element, and the sensing device is used for controlling the light-emitting element to emit light under the driving of the power supply voltage, wherein the conduction voltage of the light-emitting element is less than the power supply voltage corresponding to the rated voltage of the power supply device. Therefore, the suction times of the electronic atomization device can be increased, and the light-emitting element can emit light.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without inventive efforts, wherein:
fig. 1 is a schematic structural diagram of a driving circuit of an electronic atomizer according to a first embodiment of the present invention;
FIG. 2 is a schematic structural diagram of an embodiment of a driving circuit of the electronic atomizer shown in FIG. 1;
FIG. 3 is a schematic structural diagram of an embodiment of a sensing device;
fig. 4 is a schematic structural diagram of an electronic atomization device according to an embodiment of the utility model.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In reality, the electronic atomization device generally uses a general lithium battery to supply power, the rated voltage of the general lithium battery is 3.7V, and the output voltage is 2.5V-4.2V, but the battery capacity is low, and the number of times of pumping of the electronic atomization device using the general lithium battery is greatly limited. Researchers find that the energy density of a low-voltage battery is higher under the same volume, and the capacity of a common lithium battery is lower than that of the low-voltage battery, so that the low-voltage battery is used for supplying power. However, since the rated voltage of the low-voltage battery may be, for example, 2.8V, and the output voltage corresponds to 1.6V to 3.6V, which cannot stably drive the light-emitting element on the electronic atomization device, in reality, a common lithium battery is not generally used in the field of electronic atomization. However, in order to increase the number of the pumping ports, the low-voltage battery is adopted for supplying power, and the light-emitting element can stably emit light.
Referring to fig. 1, a schematic structural diagram of a driving circuit of an electronic atomizer according to a first embodiment of the present invention is shown, wherein the driving circuit includes: a light emitting element 11, a power supply device 12 and a sensing means 13. Wherein the power supply device 12 is connected to the light emitting element 11 and the sensing means 13 for providing a power supply voltage to the light emitting element 11 and the sensing means 13, and the sensing means 13 is further connected to the light emitting element 11 for controlling the light emitting element 11 to emit light under the power supply voltage provided by the power supply device 12.
Specifically, in the present embodiment, the rated voltage of the power supply device 12 is less than 3.7V. In reality, the electronic atomization device generally uses a general lithium battery to supply power, the rated voltage of the general lithium battery is 3.7V, and the output voltage is 2.5V-4.2V, but the battery capacity is low, and the number of times of pumping of the electronic atomization device using the general lithium battery is greatly limited. Researchers find that the energy density of a low-voltage battery is higher under the same volume, and the capacity of a common lithium battery is lower than that of the low-voltage battery, so that the low-voltage battery with the rated voltage lower than 3.7V is used for supplying power to further improve the pumping times of the electronic atomization device.
The sensing means 13 is connected to the light emitting element 11 and to the loop in which the power supply device 12 is located to control the light emitting element 11 to emit light driven by the supply voltage provided by the power supply device 12. The applicant has studied that, when a general-purpose lithium battery is used for power supply, various light emitting elements can be lit up, but when a battery with a low voltage rating lower than 3.7V is used for power supply, part of the light emitting elements cannot be lit up. Therefore, in the present application, on the premise of increasing the number of times that the electronic atomization device can be pumped, the on-state voltage of the light-emitting element 11 is further set to be smaller than the power supply voltage corresponding to the rated voltage of the power supply device 12, so that the light-emitting element 11 can be ensured to be lighted on the premise of using the low-voltage power supply device 12 to supply power.
In an embodiment of the present invention, the rated voltage of the power supply device 12 is 2.8V, and the range of the power supply voltage provided by the power supply device is 1.6V to 3.6V. When power is supplied by the power supply device 12 of the present application, the light emitting element 11 cannot be lit although the number of times of pumping can be increased. Based on this idea, the present application sets the on voltage of the light emitting element 11 to be not more than the power supply voltage corresponding to the rated voltage of the power supply device 12. That is, the on voltage of the light emitting element 11 is required to be not more than 2.8V, so that light can be emitted when the power supply device 123 having a rated voltage of 2.8V and a power supply voltage range of 1.6V to 3.6V is supplied with power. For example, in one embodiment, a light-emitting element having an on voltage in a range of 1.6V to 2.4V can be selected as the light-emitting element 11 of the present application.
Specifically, the light emitting elements 11 are at least divided into two types, the first type is a red LED, a yellow LED, an orange LED, a yellow-green LED, and the forward on-state voltage range thereof is 1.6V to 2.4V; the second type is green LED, blue LED and white LED, and the forward conduction voltage range is higher than 2.6V-3.6V. In order to ensure that the light emitting element 11 emits light, the light emitting element 11 of the present application is preferably at least one of a red LED, a yellow LED, an orange LED, and a yellow-green LED. This makes it possible to light the light emitting element 11 while increasing the number of times that pumping can be performed.
In one embodiment, the power supply device 12 of the present application may be a lithium battery.
Through the drive circuit of this application, it utilizes the power supply device 12 that rated voltage is less than 3.7V to supply power, can further improve the number of times of can drawing to set up the conducting voltage of light-emitting component and be not more than the power supply voltage that the rated voltage of power supply device corresponds, guarantee when the power supply device 12 that rated voltage is less than 3.7V supplies power, light-emitting component 11 can give out light.
Fig. 2 is a schematic structural diagram of an embodiment of a driving circuit of the electronic atomization device shown in fig. 1. Specifically, the power supply device 12 is connected to the anode of the light emitting element 11, and the sensing device 13 is connected to the cathode of the light emitting element 11. Thus, the sensing device 13 sends a control signal to the loop where the light emitting device 11 and the power supply device 12 are located, and further adjusts the voltage difference between the two ends (anode and cathode) of the light emitting device 11 to drive the light emitting device 11 to emit light. Specifically, when the sensing device 13 sends the control signal at the first level, the light emitting element 11 does not emit light; when the control signal is at the second level, the light emitting element 11 emits light. The first level is a logic high state, and the second level is a logic low state.
Further, the driving circuit of the present embodiment further includes a resistor R, a first end of the resistor R is connected to the sensing device 13, and a second end of the resistor R is connected to the cathode of the light emitting element 11. The resistor R can limit the current flowing to the light emitting element 11.
The rated voltage of the power supply device 12 described in this embodiment is 2.8V, and the power supply voltage range corresponding to the rated voltage is 1.6V to 3.6V. The on voltage of the light emitting element 11 ranges from 1.6V to 2.4V. The light emitting element 11 described in this embodiment is preferably at least one of a red LED, a yellow LED, an orange LED, and a yellow-green LED.
In this embodiment, in order to enable the sensing means 13 to operate normally, the operating voltage of the sensing means 13 is made to match the supply voltage range of said supply means 12 to operate normally at said supply voltage provided by said supply means 12. I.e. the operating voltage of the sensing means 13 cannot exceed the supply voltage range of the supply means 12, otherwise the supply voltage of the supply means 12 will not be sufficient to drive the sensing means 13 into operation.
By the driving circuit, the power supply device 12 with the rated voltage smaller than 3.7V is used for supplying power, the number of times of pumping can be further increased, the conducting voltage of the light-emitting element 11 is set to be not larger than the power supply voltage corresponding to the rated voltage of the power supply device, and the light-emitting element 11 can emit light when the power supply device 12 with the rated voltage smaller than 3.7V supplies power.
Fig. 3 is a schematic structural diagram of an embodiment of a sensing device. Specifically, the sensing device 13 includes a sensor 14 and a controller 15. In a specific embodiment, the sensing device 13 further comprises: the air duct comprises a base plate 31 and a shell 35, wherein the base plate 31 is provided with a first vent hole 33 used for connecting the air duct. The sensor 14 is located on the first surface of the substrate 31 and is disposed corresponding to the first vent hole 33. Specifically, one end of the sensor 14 is located at one side of the first vent hole 33, and the other end of the sensor 14 is located at the other side of the first vent hole 33. The housing 35 is disposed on the first surface of the substrate 31 and surrounds the sensor 14 and the controller 15, and the housing 35 has a second vent 34 for connecting to a reference pressure P0. Wherein the sensor 14 and the controller 15 are electrically connected by a metal wire, and the controller 15 is electrically connected by a metal wire with the substrate 31. In one embodiment, the substrate 31 is a circuit board.
The sensor 14 detects whether there is a change in airflow based on the air pressure P of the airway and the reference air pressure P0. When the suction operation is performed, the air pressure of the air passage is P, the sensor 14 detects the change Δ P of the air flow through the first vent hole 33, which is P-P0, the air flow difference Δ P can change the capacitance distance of the sensor 14, so that the capacitance changes, and a detection signal is output, and the controller 15 controls the light-emitting element 11 to emit light under the driving of the power supply voltage provided by the power supply device 12 according to the detection signal.
In one embodiment, the sensor 14 and the controller 15 are packaged as a single unit.
In one embodiment, the sensing device is a MEMS sensor. Alternatively, in one embodiment, the sensing device is a microphone.
That is, in the present embodiment, when the sensor 14 detects the airflow change, which indicates that the electronic atomization device is being used, it outputs a detection signal, and at this time, the controller 15 controls the light-emitting element to emit light under the driving of the power supply voltage. In this embodiment, the rated voltage of the power supply device 12 is 2.8V, and the power supply voltage range is 1.6V to 3.6V. The on voltage of the light emitting element 11 ranges from 1.6V to 2.4V. The light emitting element 11 described in this embodiment is preferably at least one of a red LED, a yellow LED, an orange LED, and a yellow-green LED.
By the driving circuit, the pumping frequency can be further improved by supplying power by the power supply device 12 with the rated voltage smaller than 3.7V, the conducting voltage of the light-emitting element 11 is set to be not larger than the rated voltage of the power supply device 12, and the light-emitting element 11 can emit light when the power supply device 12 with the rated voltage smaller than 3.7V supplies power.
Referring to fig. 4, a schematic structural diagram of an embodiment of the electronic atomizer according to the present invention is shown, and specifically, the electronic atomizer 90 according to the present invention includes a driving circuit 80 of the electronic atomizer according to any of the embodiments described above. In an embodiment, the driving circuit 80 of the electronic atomizer 90 may be disposed at a battery rod end of the electronic atomizer. Alternatively, in another embodiment, the driving circuit 80 of the electronic atomization device may also be disposed at an atomizer end of the electronic atomization device 90, which is not limited specifically.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (11)
1. A drive circuit for an electronic atomizer, comprising:
a light emitting element;
a power supply device connected to the light emitting element to supply a power supply voltage, wherein a rated voltage of the power supply device is less than 3.7V;
the sensing device is connected with a loop where the light-emitting element and the power supply device are located so as to control the light-emitting element to emit light under the driving of the power supply device;
the on-state voltage of the light-emitting element is smaller than the power supply voltage corresponding to the rated voltage of the power supply device, and the light-emitting element is at least one of a red LED, a yellow LED, an orange LED and a yellow-green LED.
2. The driving circuit according to claim 1, wherein the sensing device is configured to send a control signal to a loop where the light emitting element and the power supply device are located, so as to adjust a voltage difference across the light emitting element to drive the light emitting element to emit light; wherein when the control signal is at a first level, the light emitting element is non-emitting; when the control signal is at a second level, the light emitting element emits light.
3. The driving circuit of claim 2, wherein the first level is a logic high state and the second level is a logic low state.
4. The driving circuit according to claim 1, wherein the rated voltage of the power supply device is 2.8V.
5. The drive circuit according to claim 3, wherein the supply voltage of the power supply device is in a range of 1.6V to 3.6V.
6. The drive circuit according to claim 4 or 5, wherein an on voltage of the light emitting element is in a range of 1.6V to 2.4V.
7. The driving circuit according to claim 1, wherein the operating voltage of the sensing means matches a range of supply voltages of the power supply device to operate normally at the supply voltage provided by the power supply device.
8. The driving circuit according to claim 1, wherein the power supply device is a lithium battery.
9. The driving circuit according to claim 1, wherein the sensing means comprises:
the sensor is used for detecting the change of the air flow and outputting a detection signal when the change of the air flow is detected;
and the controller is used for receiving the detection signal output by the sensor so as to control the light-emitting element to emit light under the driving of the power supply voltage.
10. The driving circuit of claim 1, wherein the sensing device is a MEMS sensor.
11. An electronic atomizer, comprising the drive circuit for an electronic atomizer according to any one of claims 1 to 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202121079419.2U CN215531663U (en) | 2021-05-18 | 2021-05-18 | Drive circuit of electronic atomization device and electronic atomization device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202121079419.2U CN215531663U (en) | 2021-05-18 | 2021-05-18 | Drive circuit of electronic atomization device and electronic atomization device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115363287A (en) * | 2021-05-18 | 2022-11-22 | 深圳麦克韦尔科技有限公司 | Driving circuit of electronic atomization device and electronic atomization device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115363287A (en) * | 2021-05-18 | 2022-11-22 | 深圳麦克韦尔科技有限公司 | Driving circuit of electronic atomization device and electronic atomization device |
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