CN215531634U - Atomizer and electronic atomization device - Google Patents
Atomizer and electronic atomization device Download PDFInfo
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- CN215531634U CN215531634U CN202120444932.0U CN202120444932U CN215531634U CN 215531634 U CN215531634 U CN 215531634U CN 202120444932 U CN202120444932 U CN 202120444932U CN 215531634 U CN215531634 U CN 215531634U
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Abstract
The utility model provides an atomizer and an electronic atomization device. Wherein the first switching circuit is in series with the heating element; a second switching circuit connected in parallel with the heating element and the first switching circuit; when the atomizer is reversely connected with the battery rod, the second switch circuit controls the first switch circuit to be disconnected, and then the heating element is disconnected with the battery rod. Therefore, when the atomizer is reversely connected with the battery rod, the atomizer is prevented from being damaged.
Description
Technical Field
The present invention relates to the field of electronic atomization devices, and in particular, to an atomizer and an electronic atomization device.
Background
In the market, the battery rod can be used universally as long as the connecting ports of the battery rod and the atomizer are matched. The atomizer of own brand can realize heating on other brands 'battery pole promptly, and the battery pole of own brand can heat other brands' atomizer. That is, any combination of the existing battery rod and the atomizer can be used.
The battery pole that has now just can use between the arbitrary combination between battery pole and the atomizer, causes the mixed use between the battery pole of different producers and the atomizer easily, therefore causes bad user experience, has hindered the user to the cognition of producer and brand, for this reason, can set up anti-fake function on the atomizer.
Because the condition that the atomizer was inserted in reverse can appear no matter be same brand or combination brand, when inserting in reverse, the atomizer that is provided with anti-fake function appears impaired problem easily.
SUMMERY OF THE UTILITY MODEL
The utility model provides an atomizer and an electronic atomization device, which can protect the atomizer from being damaged when a battery rod is reversely connected with the atomizer.
In order to solve the above technical problems, a first technical solution provided by the present invention is: there is provided a nebulizer, comprising: a heating element; a first switching circuit in series with the heating element; a second switching circuit connected in parallel with the heating element and the first switching circuit; when the atomizer is reversely connected with the battery rod, the second switch circuit controls the first switch circuit to be disconnected, and then the heating element is disconnected with the battery rod.
Wherein the atomizer further comprises: the first connecting end, the second connecting end and the control chip are connected with the first connecting end and the second connecting end respectively; the first switch circuit and the heating element are connected in series between the first connecting end and the second connecting end and are connected with a first driving port of the control chip; the second switch circuit is connected between the first connecting end and the second connecting end and is connected with a second driving port of the control chip.
Wherein the first switching circuit comprises: the first switch comprises a first passage end, a second passage end and a control end, the control end of the first switch is connected with the first driving port, and the first passage end of the first switch is connected with the heating element; the second switch comprises a first path end, a second path end and a control end, the control end of the second switch is connected with the first driving port, the first path end of the second switch is connected with the second path end of the first switch, and the second path end of the second switch is connected with the second connecting end.
Wherein the second switching circuit comprises: and the third switch comprises a first passage end, a second passage end and a control end, the control end of the third switch is connected with the second connecting end, the first passage end of the third switch is connected with the first connecting end, and the second end of the third switch is connected with the second connecting end.
The first switch and the second switch are N-type MOS tubes, and the third switch is an NPN tube.
The first switch and the second switch are P-type MOS tubes, and the third switch is a PNP tube.
Wherein the second switching circuit comprises: the fourth switch comprises a first path end, a second path end and a control end, the control end of the fourth switch is connected with the second connecting end, and the first path end of the fourth switch is connected with the second connecting end; and the fifth switch comprises a first path end, a second path end and a control end, the control end of the fifth switch is connected with the second connecting end, the first path end of the fifth switch is connected with the second path end of the fourth switch, and the second path end of the fifth switch is connected with the second connecting end.
The first switch and the second switch are N-type MOS tubes, and the fourth switch and the fifth switch are N-type MOS tubes.
The first switch and the second switch are P-type MOS tubes, and the fourth switch and the fifth switch are P-type MOS tubes.
Wherein the atomizer further comprises: the first protection circuit is connected with the first driving port and the first switch circuit and used for protecting the first driving port; the second protection circuit is connected with the second driving port and the second switch circuit and used for protecting the second driving port; and the third protection circuit is connected with the power supply port of the control chip and the second switch circuit and is used for protecting the power supply port.
Wherein the first protection circuit comprises: a first end of the second resistor is connected with the first driving port, and a second end of the second resistor is connected with the first switch circuit; the second protection circuit includes: a first end of the first resistor is connected with the second driving port, and a second end of the first resistor is connected with the second switch circuit; the third protection circuit includes: and the anode of the diode is connected with the second switching circuit, and the cathode of the diode is connected with the power supply port.
In order to solve the above technical problems, a second technical solution provided by the present invention is: provided is an electronic atomization device including: a battery pole; the atomizer is connected with the battery pole, and the atomizer is any one of the atomizer.
The atomizer provided by the utility model comprises a heating element, a first switching circuit and a second switching circuit. Wherein the first switching circuit is in series with the heating element; a second switching circuit connected in parallel with the heating element and the first switching circuit; when the atomizer is reversely connected with the battery rod, the second switch circuit controls the first switch circuit to be disconnected, and then the heating element is disconnected with the battery rod. Therefore, when the atomizer is reversely connected with the battery rod, the atomizer is prevented from being damaged.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive efforts,
wherein:
FIG. 1 is a functional block diagram of a first embodiment of an atomizer according to the present invention;
FIG. 2 is a schematic structural view of a first embodiment of the atomizer shown in FIG. 1;
FIG. 3 is a schematic structural view of a second embodiment of the atomizer shown in FIG. 1;
FIG. 4 is a functional block diagram of a second embodiment of the atomizer of the present invention;
FIG. 5 is a schematic structural view of an embodiment of the atomizer shown in FIG. 4;
FIG. 6 is a schematic view of a battery rod in forward connection with the atomizer of FIG. 5;
FIG. 7 is a schematic view of the battery rod in reverse connection with the atomizer of FIG. 5;
fig. 8 is a schematic structural diagram of an electronic atomizer according to an embodiment of the present invention.
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.
Fig. 1 is a schematic functional block diagram of an atomizer according to a first embodiment of the present invention. Specifically, the atomizer includes a heating element L, a first switching circuit 121, and a second switching circuit 122. The first switch circuit 121 is connected in series with the heating element L, and the second switch circuit 122 is connected in parallel with the heating element L and the first switch circuit 121. When the atomizer is connected to the battery rod in the reverse direction, the second switch circuit 122 controls the first switch circuit 121 to be disconnected, thereby disconnecting the heating element L from the battery rod.
Specifically, the atomizer further comprises a first connection end n1, a second connection end n2 and a control chip 11. The first connection end n1 is an anode, and the second connection end n2 is a cathode.
The control chip 11 may be a general programmable control chip, or may be a customized non-programmable control chip.
The first switch circuit 121 and the heating element L are connected in series between the first connection end n1 and the second connection end n2, and are connected to the first driving port P4 of the control chip 11. The second switch circuit 122 is connected between the first connection terminal n1 and the second connection terminal n2, and is connected to the second driving port P5 of the control chip 11. Specifically, as shown in fig. 1, a capacitor C is further connected between the first connection end n1 and the second connection end n 2.
Referring to fig. 2, fig. 2 is a schematic structural diagram of the atomizer shown in fig. 1 according to the first embodiment. Wherein, the first switch circuit 121 includes: a first switch Q1, a second switch Q2. The first switch Q1 includes a first path terminal, a second path terminal and a control terminal, the control terminal of the first switch Q1 is connected to the first driving port P4, and the first path terminal of the first switch Q1 is connected to the heating element L. The second switch Q2 includes a first path end, a second path end and a control end, the control end of the second switch Q2 is connected to the first driving port P4, the first path end of the second switch Q2 is connected to the second path end of the first switch Q1, and the second path end of the second switch Q2 is connected to the second connection end n 2. The first end of the third resistor R3 is connected to the second end of the second resistor R2, and the second end of the third resistor R3 is connected to the second connection terminal n 2.
Preferably, the first switch circuit 121 further includes a third resistor R3, a first end of the third resistor R3 is connected to the control terminals of the first switch Q1 and the second switch Q2, and a second end of the third resistor R3 is connected to the second connection terminal n 2. The third resistor R3 is used to provide a pull-down resistor to prevent the first switch Q1 and the second switch Q2 from being unstable when the control chip 11 is powered on.
The second switching circuit 122 includes: the third switch Q3, the third switch Q3 includes a first path end, a second path end and a control end, the control end of the third switch Q3 is connected to the second connection end n2, the first path end of the third switch Q3 is connected to the first connection end n1, the second end of the third switch Q3 is connected to the second connection end n2, and further, the second end of the third switch Q3 is connected to the first end of the third resistor R3.
In this embodiment, the first switch Q1 and the second switch Q2 are N-type MOS transistors. Because the body diode of the single MOS tube is conducted when the single MOS tube is reversely connected, and the heating element L generates heat, the first switch Q1 and the second switch Q2 are adopted to form a double MOS tube, thereby preventing the conduction problem when the single MOS tube is reversely connected. It is understood that when the first switch Q1 and the second switch Q2 are N-type MOS transistors, an NPN transistor may be used instead of the first switch Q1 and the second switch Q2. The third switch is an NPN tube. Therefore, when the battery rod is connected to the atomizer in the forward direction, the first output end m1 of the battery rod, i.e. the driving signal output end, outputs the driving signal as a high level signal, and the first driving port P4 controls the first switch Q1 and the second switch Q2 to be turned on. In another embodiment, the first switch Q1 and the second switch Q2 are P-type MOS transistors, and it is understood that when the first switch Q1 and the second switch Q2 are P-type MOS transistors, a PNP transistor may be used instead of the first switch Q1 and the second switch Q2. The third switch Q3 is a PNP tube. Therefore, when the battery rod is connected to the atomizer in the forward direction, the first output end m1 of the battery rod, i.e. the driving signal output end, outputs the driving signal as a high level signal, and the first driving port P4 controls the first switch Q1 and the second switch Q2 to be turned on. As shown in fig. 3, fig. 3 is a schematic structural view of a second embodiment of the atomizer shown in fig. 1. The difference from the first embodiment shown in fig. 2 is that, in the present embodiment, the second switch circuit 122 includes: a fourth switch Q4 and a fifth switch Q5. The fourth switch Q4 includes a first path terminal, a second path terminal and a control terminal, the control terminal of the fourth switch Q4 is connected to the second connection terminal n2, and the first path terminal of the fourth switch Q4 is connected to the second connection terminal n 1. The fifth switch Q5 includes a first path end, a second path end and a control end, the control end of the fifth switch Q5 is connected to the second connection end n2, the first path end of the fifth switch Q5 is connected to the second path end of the fourth switch Q4, and the second path end of the fifth switch Q5 is connected to the second connection end n 2.
In this embodiment, the first switch Q1 and the second switch Q2 are N-type MOS transistors, and the fourth switch Q4 and the fifth switch Q5 are N-type MOS transistors. Specifically, in this embodiment, the second switch circuit 122 may be a low-power dual-channel MOS transistor. In practical application, the double-channel MOS tube circuit can be integrated inside a chip, so that the circuit is simple and low in cost.
In another embodiment, the first switch Q1 and the second switch Q2 are P-type MOS transistors, and the fourth switch Q4 and the fifth switch Q5 are P-type MOS transistors. Specifically, in this embodiment, the second switch circuit 122 may be a low-power dual-channel MOS transistor. In practical application, the double-channel MOS tube circuit can be integrated inside a chip, so that the circuit is simple and low in cost.
Referring to fig. 4, a functional block diagram of a second embodiment of the atomizer of the present invention is shown, which is different from the first embodiment shown in fig. 1 in that the atomizer further includes: a first protection circuit 123, a second protection circuit 124, and a third protection circuit 125.
The first protection circuit 123 is connected to the first driving port P4 and the first switch circuit 121, and is configured to protect the first driving port P4. The second protection circuit 124 is connected to the second driving port P5 and the second switch circuit 122 for protecting the second driving port P5. The third protection circuit 125 is connected to the power port VDD of the control chip 11 and the second switch circuit 122, and is configured to protect the power port VDD.
Referring to fig. 5, fig. 5 is a schematic structural diagram of an embodiment of the atomizer shown in fig. 4. The first protection circuit 123 includes a second resistor R2, a first end of the second resistor R2 is connected to the first driving port P4, a second end of the second resistor R2 is connected to the first switch circuit 121, and specifically, a second end of the second resistor R2 is connected to control ends of the first switch Q1 and the second switch Q2. The second protection circuit 124 includes a first resistor R1, a first end of the first resistor R1 is connected to the second driving port P5, a second end of the first resistor R1 is connected to the second switch circuit 121, and specifically, a second end of the first resistor R1 is connected to the first connection terminal n1 and the first pass terminal of the third switch Q3. The third protection circuit 125 includes a diode D, an anode of the diode D is connected to the second switch circuit 122, specifically, the anode of the diode D is connected to the first pass end and the first connection end n1 of the third switch Q3, and a cathode of the diode D is connected to the power port VDD. In one embodiment, the ground voltage port GND of the control chip 11 is connected to the second connection terminal n 2.
Referring to fig. 6, fig. 6 is a schematic structural view illustrating a forward connection between a battery rod and the atomizer shown in fig. 5. Specifically, the battery bar includes a first output terminal m1 and a second output terminal m2, wherein the first output terminal m1 is a driving signal output terminal, and the second output terminal m2 is a ground voltage terminal. When the battery rod is connected with the atomizer in the forward direction, the first output end m1 of the battery rod is connected with the first connecting end n1 of the atomizer, and the second output end m2 of the battery rod is connected with the second connecting end n2 of the atomizer.
Specifically, when the battery rod is matched with the atomizer, the battery rod and the atomizer are products produced by the same manufacturer. After the forward connection, the first output end m1 of the battery rod outputs a driving signal to the first connection end n1 of the atomizer and supplies power to the atomizer by using the driving signal. At this time, after the atomizer realizes authentication with the battery rod through the driving signal, the atomizer controls the first driving port P4 to output a control signal, controls the first switch Q1 and the second switch Q2 to be conducted, and at this time, the heating element L is conducted with the battery rod, and the heating element L generates heat based on the driving signal to atomize the substrate to be atomized. At this time, the base voltage of the third switch Q3 is always smaller than the emitter voltage, and the third switch Q3 is in an off state.
In another embodiment, if the battery rod is not matched with the atomizer, and if the battery rod is connected with the atomizer in the forward direction, the first output end m1 of the battery rod outputs a driving signal to the first connection end n1 of the atomizer, at this time, the atomizer cannot process the driving signal, so that the control chip 11 of the battery rod cannot receive the heating instruction after being powered on by the driving signal. At this time, the first driving port P4 is in a default working state, i.e., a low level state, so that the first switch Q1 and the second switch Q2 are always in an off state. At this time, the base voltage of the third switch Q3 is always smaller than the emitter voltage, and the third switch Q3 is in an off state.
That is, when the atomizer is being inserted into the battery rod, no matter whether the battery rod is matched with the atomizer or not, the control terminals of the first switch Q1 and the second switch Q2 are not affected by the turning off of the third switch Q3, that is, the normal operation of the atomizer when the battery rod is being inserted is not affected by the introduction of the third switch Q3.
Referring to fig. 7, fig. 7 is a schematic view showing a structure in which a battery rod is reversely connected to the atomizer shown in fig. 5. Specifically, the battery bar includes a first output terminal m1 and a second output terminal m2, wherein the first output terminal m1 is a driving signal output terminal, and the second output terminal m2 is a ground voltage terminal. When the battery rod is reversely connected with the atomizer, the first output end m1 of the battery rod is connected with the second connecting end n2 of the atomizer, and the second output end m2 of the battery rod is connected with the first connecting end n1 of the atomizer.
At this time, the ground voltage port GND of the control chip 11 is connected to the first output terminal m1 of the battery bar, i.e., the driving signal output terminal, and is in a negative voltage state, and a voltage enters from the ground voltage port GND of the control chip 11 and is output from the first driving port P4, the second driving port P5 and the power supply port VDD. Because the negative voltage withstand voltage of the control chip 11 is less than 1V, the voltage output by the first driving port P4 passes through the second resistor R2, the voltage output by the second driving port P5 passes through the first resistor R1, and the power supply port VDD is reversely connected with the diode D to limit the current output, so as to reduce the voltage between the input end and the output end of the control chip 11, thereby protecting the atomizer from being damaged. Specifically, when the battery rod is reversely connected with the atomizer, the base voltage of the third switch Q3 is always greater than the emitter voltage, and when the battery rod outputs a driving signal and supplies power to the atomizer by using the driving signal, the third switch Q3 is turned on, the gates of the first switch Q1 and the second switch Q2 are connected to the ground, and the first switch Q1 is turned off, so that the heating element L is disconnected from the battery rod, and the atomizer is protected from being damaged.
That is, when the atomizer is reversely inserted into the battery rod, no matter whether the battery rod is matched with the atomizer or not, the control ends of the first switch Q1 and the second switch Q2 are not affected by the turning-off of the third switch Q3, that is, the atomizer is not damaged when the atomizer is reversely inserted due to the introduction of the third switch Q3.
The application provides an atomizer, no matter whether battery pole and atomizer match, when battery pole and atomizer are reverse to be connected, all can turn off heating element and be connected of battery pole, and then the protection atomizer does not receive the damage.
Fig. 8 is a schematic structural diagram of an electronic atomization device according to an embodiment of the present invention. The electronic atomizer 80 includes a battery rod 81 and an atomizer 82. The battery rod 81 may be any one of the battery rods 81 in the prior art, and the atomizer 82 is the atomizer 82 shown in fig. 1-4 and 7. Wherein the battery rod 81 is used to power the atomizer 82 such that the atomizer 82 atomizes the substrate to be atomized.
The application provides an electronic atomization device, no matter whether battery pole and atomizer match, when battery pole and atomizer are reverse to be connected, all can turn off heating element and be connected of battery pole, and then the protection atomizer does not receive the damage.
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 (12)
1. An atomizer, comprising:
a heating element;
a first switching circuit in series with the heating element;
a second switching circuit connected in parallel with the heating element and the first switching circuit;
when the atomizer is reversely connected with the battery rod, the second switch circuit controls the first switch circuit to be disconnected, and then the heating element is disconnected with the battery rod.
2. The nebulizer of claim 1, further comprising:
the first connecting end, the second connecting end and the control chip are connected with the first connecting end and the second connecting end respectively;
the first switch circuit and the heating element are connected in series between the first connecting end and the second connecting end and are connected with a first driving port of the control chip; the second switch circuit is connected between the first connecting end and the second connecting end and is connected with a second driving port of the control chip.
3. The nebulizer of claim 2, wherein the first switching circuit comprises:
the first switch comprises a first passage end, a second passage end and a control end, the control end of the first switch is connected with the first driving port, and the first passage end of the first switch is connected with the heating element;
the second switch comprises a first path end, a second path end and a control end, the control end of the second switch is connected with the first driving port, the first path end of the second switch is connected with the second path end of the first switch, and the second path end of the second switch is connected with the second connecting end.
4. A nebulizer as claimed in claim 3, wherein the second switching circuit comprises:
and the third switch comprises a first passage end, a second passage end and a control end, the control end of the third switch is connected with the second connecting end, the first passage end of the third switch is connected with the first connecting end, and the second end of the third switch is connected with the second connecting end.
5. The nebulizer of claim 4, wherein the first switch and the second switch are N-type MOS transistors, and the third switch is an NPN transistor.
6. The nebulizer of claim 4, wherein the first switch and the second switch are P-type MOS transistors, and the third switch is a PNP transistor.
7. A nebulizer as claimed in claim 3, wherein the second switching circuit comprises:
the fourth switch comprises a first path end, a second path end and a control end, the control end of the fourth switch is connected with the second connecting end, and the first path end of the fourth switch is connected with the second connecting end;
and the fifth switch comprises a first path end, a second path end and a control end, the control end of the fifth switch is connected with the second connecting end, the first path end of the fifth switch is connected with the second path end of the fourth switch, and the second path end of the fifth switch is connected with the second connecting end.
8. The nebulizer of claim 7, wherein the first switch and the second switch are N-type MOS transistors, and wherein the fourth switch and the fifth switch are N-type MOS transistors.
9. The nebulizer of claim 7, wherein the first switch and the second switch are P-type MOS transistors, and wherein the fourth switch and the fifth switch are P-type MOS transistors.
10. The nebulizer of claim 2, further comprising:
the first protection circuit is connected with the first driving port and the first switch circuit and used for protecting the first driving port;
the second protection circuit is connected with the second driving port and the second switch circuit and used for protecting the second driving port;
and the third protection circuit is connected with the power supply port of the control chip and the second switch circuit and is used for protecting the power supply port.
11. The nebulizer of claim 10, wherein the first protection circuit comprises:
a first end of the second resistor is connected with the first driving port, and a second end of the second resistor is connected with the first switch circuit;
the second protection circuit includes:
a first end of the first resistor is connected with the second driving port, and a second end of the first resistor is connected with the second switch circuit;
the third protection circuit includes:
and the anode of the diode is connected with the second switching circuit, and the cathode of the diode is connected with the power supply port.
12. An electronic atomization device, comprising:
a battery pole;
an atomizer connected with the battery rod, wherein the atomizer is the atomizer of any one of claims 1-11.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120444932.0U CN215531634U (en) | 2021-03-01 | 2021-03-01 | Atomizer and electronic atomization device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120444932.0U CN215531634U (en) | 2021-03-01 | 2021-03-01 | Atomizer and electronic atomization device |
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| CN215531634U true CN215531634U (en) | 2022-01-18 |
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| CN202120444932.0U Active CN215531634U (en) | 2021-03-01 | 2021-03-01 | Atomizer and electronic atomization device |
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