BATTERY ROD, VAPORIZER, AND ELECTRONIC VAPORIZATION DEVICE

A battery rod includes: a first connecting end and a second connecting end connectable with a vaporizer inserted into the battery rod; and a control chip connected with the first connecting end for sending a first communication signal to the vaporizer inserted into the battery rod and receiving a second communication signal from the vaporizer through the first connecting end so as to realize communication between the battery rod and the vaporizer. The first communication signal includes a first level signal as a logic high level and a second level signal as a logic low level. The second communication signal includes a third level signal as a logic high level and a fourth level signal as a logic low level. A voltage difference between the first level signal and the second level signal is greater than a voltage difference between the third level signal and the fourth level signal.

FIELD

This application relates to the field of vaporization technologies, and in particular, to a battery rod, a vaporizer, and an electronic vaporization device.

BACKGROUND

In some existing electronic vaporization devices with an encryption function, a circuit board is arranged in a vaporizer of the electronic vaporization devices, and a controller MCU, a capacitor, and a switch MOS transistor are arranged on the circuit board to realize the encryption function, where the capacitor is configured to supply power to the controller, and the controller realizes communication with the battery rod by controlling turn-on and turn-off of the MOS transistor, that is, the controller feeds back data 1 and data 0 to the battery rod.

In an actual application process, the existing electronic vaporization devices generally require a high-power MOS transistor and/or a large-capacity capacitor to operate normally, but the high-power MOS transistor and the large-capacity capacitor are generally large in size. As a result, an area of the circuit board may be significantly increased, which limits the application of the encryption function to small-scale cartridges.

SUMMARY

In an embodiment, the present invention provides a battery rod, comprising: a first connecting end and a second connecting end configured to be connected with a vaporizer inserted into the battery rod; and a control chip connected with the first connecting end and configured to send a first communication signal to the vaporizer inserted into the battery rod and to receive a second communication signal from the vaporizer through the first connecting end so as to realize communication between the battery rod and the vaporizer, wherein the first communication signal comprises a first level signal as a logic high level and a second level signal as a logic low level, wherein the second communication signal comprises a third level signal as a logic high level and a fourth level signal as a logic low level, and wherein a voltage difference between the first level signal and the second level signal is greater than a voltage difference between the third level signal and the fourth level signal.

DETAILED DESCRIPTION

In an embodiment, the present invention provides a battery rod, a vaporizer, and an electronic vaporization device, which can reduce the power of a control switch in the vaporizer, thereby further reducing a size of a circuit board of the vaporizer and reducing costs.

In an embodiment, the present invention provides a battery rod, including: a first connecting end and a second connecting end, configured to be connected with a vaporizer inserted into the battery rod; and a control chip, connected with the first connecting end to send a first communication signal to the vaporizer inserted into the battery rod and receive a second communication signal from the vaporizer through the first connecting end, to realize communication between the battery rod and the vaporizer, where the first communication signal includes a first level signal as a logic high level and a second level signal as a logic low level; and the second communication signal includes a third level signal as a logic high level and a fourth level signal as a logic low level, and a voltage difference between the first level signal and the second level signal is greater than a voltage difference between the third level signal and the fourth level signal.

The battery rod further includes: a cell, configured to provide a battery voltage; and a first switch, including a first path end, a second path end, and a control end, where the first path end of the first switch is connected with the cell and the second path end is connected with the first connecting end; the control chip includes a power control pin, and the power control pin is connected with the control end of the first switch to control turn-on and turn-off of the first switch; when the first switch is turned on, the battery voltage outputs the first level signal at the first connecting end through the first switch that is turned on; and when the first switch is turned off, the battery rod outputs the second level signal at the first connecting end, so as to send the first communication signal to the vaporizer through the first connecting end.

The control chip further includes: a detection pin, connected with the first connecting end to detect a voltage on the first connecting end, where the control chip recognizes and determines the second communication signal based on the voltage detected by the detection pin.

When the battery rod receives the second communication signal from the vaporizer, the first switch is turned on to cause the battery voltage to output the first level signal at the first connecting end through the first switch that is turned on; when the vaporizer operates in a first state, the voltage on the first connecting end is maintained at the first level signal, the detection pin detects the third level signal in the second communication signal, and the third level signal is equal to the first level signal; and when the vaporizer operates in a second state, the voltage on the first connecting end is reduced to the fourth level signal, the detection pin detects the fourth level signal in the second communication signal, and the fourth level signal is greater than the second level signal but less than the first level signal.

A difference between a voltage on the first connecting end when the vaporizer operates in the first state and a voltage on the first connecting end when the vaporizer operates in the second state is within a range (0, 1.2].

The battery rod further includes: a current-limiting circuit, configured to be connected with the first connection end to output the third level signal at the first connection end when receiving the second communication signal from the vaporizer; when the vaporizer operates in the first state, the voltage on the first connecting end is maintained at the third level signal, the detection pin detects the third level signal in the second communication signal, and the third level signal is greater than the second level signal but less than the first level signal; and when the vaporizer operates in the second state, the voltage on the first connecting end is reduced to the fourth level signal, the detection pin detects the fourth level signal in the second communication signal, and the fourth level signal is equal to the second level signal.

The current-limiting circuit includes: a second switch, including a first path end, a second path end, and a control end, where the first path end of the second switch is connected with the cell to receive the battery voltage; and a current-limiting resistor, arranged between the second path end of the second switch and the first connecting end, where the control chip further includes a current-limiting control pin, the current-limiting control pin is connected with the control end of the second switch to control turn-on of the second switch, and when the battery rod receives the second communication signal from the vaporizer, the control chip controls the second switch to be turned on through the current-limiting control pin to output the third level signal at the first connecting end.

The control chip further includes: a signal sampling circuit, connected with the detection pin and receiving a voltage reference to recognize and determine the second communication signal based on the voltage reference.

The control chip further includes a voltage reference pin configured to receive the voltage reference; and the battery rod further includes: a voltage reference providing circuit, arranged between the voltage reference pin and the first connecting end to generate the voltage reference by using the third level signal on the first connecting end, where the voltage reference is less than the third level signal but greater than the fourth level signal.

To resolve the foregoing technical problems, a second technical solution provided by this application is as follows: A vaporizer is provided, including: a first connecting end and a second connecting end, configured to be connected with a battery rod when the first connecting end and the second connecting end are inserted into the battery rod; and a processing chip, connected with the first connecting end to receive a first communication signal from the battery rod through the first connecting end, and send a second communication signal to the battery rod to realize communication between the battery rod and the vaporizer, where the first communication signal includes a first level signal as a logic high level and a second level signal as a logic low level; and the second communication signal includes a third level signal as a logic high level and a fourth level signal as a logic low level, and a voltage difference between the first level signal and the second level signal is greater than a voltage difference between the third level signal and the fourth level signal.

The vaporizer further includes: a heating element; and a control switch and a controllable resistor, where the control switch and the controllable resistor are connected in series and are connected in parallel with the heating element between the first connecting end and the second connecting end, and the control switch receives a control signal of the processing chip to be in a turn-on state or a turn-off state; when the control switch is in the turn-off state, the vaporizer operates in a first state, a voltage on the first connecting end is maintained at the third level signal, and the third level signal is equal to the first level signal; and when the control switch is in the turn-on state, the vaporizer operates in a second state, the voltage on the first connecting end is reduced to the fourth level signal, and the fourth level signal is greater than the second level signal but less than the first level signal.

To resolve the foregoing technical problems, a third technical solution provided by this application is as follows: An electronic vaporization device is provided, including: a battery rod, including the battery rod according to any one of the foregoing; and a vaporizer, including the vaporizer according to any one of the foregoing.

Beneficial effects of this application are as follows: Different from the related art, according to the battery rod, the vaporizer, and the electronic vaporization device provided in this application, when communication recognition is performed, the voltage difference between the first level signal and the second level signal that are sent to the vaporizer by the battery rod is greater than the voltage difference between the third level signal and the fourth level signal that are fed back by the vaporizer to the battery rod, so as to reduce the power of the control switch in the vaporizer, thereby further reducing the size of the circuit board of the vaporizer and reducing the costs.

FIG.1is a schematic diagram of functional modules of a first embodiment of a battery rod according to this application. Specifically, the battery rod10includes a first connecting end n1and a second connecting end n2configured to be connected with a vaporizer inserted into the battery rod10. The battery rod10further includes a control chip11connected with the first connecting end n1, to send a first communication signal to the vaporizer inserted into the battery rod10and receive a second communication signal from the vaporizer through the first connecting end n1, so as to realize communication between the battery rod10and the vaporizer, where the second connecting end n2is grounded. In an embodiment, the control chip11includes a power supply control pin P1.

Specifically, referring toFIG.5, the first communication signal includes a first level signal x1as a logic high level and a second level signal x2as a logic low level; and the second communication signal includes a third level signal x3as a logic high level and a fourth level signal x4as a logic low level. Specifically, in an embodiment, a voltage value of the first level signal x1is V2, a voltage value of the second level signal x2is V0, a voltage value of the third level signal x3is V2, and a voltage value of the fourth level signal x4is V1. A voltage difference (V2−V0) between the voltage value V2of the first level signal x1and the voltage value V0of the second level signal x2is greater than a voltage difference (V2−V1) between the voltage value V2of the third level signal x3and the voltage value V1of the fourth level signal x4.

Optionally, the battery rod10further includes a cell12and a first switch13, and the cell12is configured to provide a battery voltage Vbat. When the first switch13is turned on, the battery voltage Vbat outputs the first level signal x1at the first connection end n1through the first switch13that is turned on; and when the first switch13is turned off, the battery rod10outputs the second level signal x2at the first connecting end n1to send the first communication signal to the vaporizer through the first connecting end n1. Specifically, data “1” is sent when the first level signal x1is outputted, and data “0” is sent when the second level signal x2is outputted.

Specifically, as shown inFIG.2, the first switch13includes a first switch Q1, and the first switch Q1includes a first path end, a second path end, and a control end, where the first path end of the first switch Q1is connected with the cell12, the second path end is connected with the first connecting end n1, and the control end of the first switch Q1is connected with the power supply control pin P1. Specifically, the power supply control pin P1is configured to control turn-on or turn-off of the first switch Q1.

Optionally, the control chip11further includes: a detection pin P2and a voltage reference pin P3. The detection pin P2is connected with the first connection end n1to detect a voltage on the first connection end n1. Specifically, the control chip11recognizes and determines the second communication signal based on the voltage detected by the detection pin P2, and then determines that data received by the battery rod10is “1” or “0”. Specifically, the control chip11further includes: a signal sampling circuit14, connected with the detection pin P2to detect and obtain a voltage fed back by the vaporizer to the first connection end n1through the detection pin P2, and also connected with the voltage reference pin P3to receive a voltage reference Vref, so as to recognize and determine that the voltage fed back by the vaporizer to the first connection end n1is the third level signal x3or the fourth level signal x4according to the voltage reference Vref.

The battery rod10further includes: a voltage reference providing circuit15, arranged between the voltage reference pin P3and the first connection end n1. That is, the voltage reference providing circuit15is connected between the voltage reference pin P3and the first connection end n1to generate the voltage reference Vref by using the third level signal x3on the first connection end n1, where the voltage reference Vref is less than the voltage value V2of the third level signal x3or the first level signal x1but is greater than the voltage value V1of the fourth level signal x4.

Referring toFIG.2, the signal sampling circuit14includes a comparator141. Specifically, the comparator141includes a first input end, a second input end, and an output end. The first input end is connected with the detection pin P2to detect the voltage fed back by the vaporizer to the first connection end n1; the second input end is connected with the voltage reference pin P3to receive the voltage reference Vref; and the output end is connected with a pin P4of the control chip to output a result corresponding to the recognized and determined second communication signal. In an alternative embodiment, the comparator141may also be an amplification circuit built by an analog-to-digital converter, an operational amplifier, a triode, a MOS transistor, or the like. In a specific embodiment, the signal sampling circuit14may also be arranged outside the control chip11. After recognizing and determining that the voltage fed back by the vaporizer to the first connection end n1is the third level signal x3or the fourth level signal x4, a feedback result is transmitted to the control chip11for further processing by the control chip11.

The voltage reference providing circuit15includes: a third switch Q3, a first resistor R1, a second resistor R2, and a first capacitor C1. The third switch Q3includes a first path end, a second path end, and a control end. The first path end of the third switch Q3is connected with the first connecting end n1, the control end is connected with a pin P5of the control chip11, and the pin P5of the control chip11controls turn-off and turn-on of the third switch Q3. A first end of the second resistor R2is connected with the second path end of the third switch Q3. A first end of the first resistor R1is connected with a second end of the second resistor R2, and a second end of the first resistor R1is grounded. A first end of the first capacitor C1is connected with the first end of the second resistor R2, and a second end of the first capacitor C1is grounded.

In an embodiment, when the vaporizer operates in a first state, the voltage on the first connecting end n1is maintained at the first level signal x1, the detection pin P2detects the third level signal x3in the second communication signal, that is, the battery rod10obtains the data “1”, and the voltage value of the third level signal x3is equal to the voltage value of the first level signal x1, that is, the voltage value V2. When the vaporizer operates in a second state, the voltage on the first connecting end n1is reduced from the first level signal x1to the fourth level signal x4, the detection pin P2detects the fourth level signal x4in the second communication signal, that is, the battery rod10obtains the data “0”, and the voltage value V1of the fourth level signal x4is greater than the voltage value V0of the second level signal x2but less than the voltage value V2of the first level signal x1.

FIG.3is a schematic structural diagram of a first embodiment of a vaporizer according to this application. Specifically, the vaporizer20includes: a first connecting end m1and a second connecting end m2, configured to be connected with a first connecting end n1and a second connecting end n2of a battery rod10when the vaporizer20is inserted into the battery rod10.

The vaporizer20includes a processing chip21connected with the first connecting end m1, to receive a first communication signal from the battery rod10and send a second communication signal to the battery rod10through the first connecting end m1, thereby realizing communication between the battery rod10and the vaporizer20.

Specifically, referring toFIG.5, the first communication signal includes a first level signal x1as a logic high level and a second level signal x2as a logic low level; and the second communication signal includes a third level signal x3as a logic high level and a fourth level signal x4as a logic low level. Specifically, in an embodiment, a voltage value of the first level signal x1is V2, a voltage value of the second level signal x2is V0, a voltage value of the third level signal x3is V2, and a voltage value of the fourth level signal x4is V1. A voltage difference (V2−V0) between the voltage value V2of the first level signal x1and the voltage value V0of the second level signal x2is greater than a voltage difference (V2−V1) between the voltage value V2of the third level signal x3and the voltage value V1of the fourth level signal x4.

In an embodiment, the vaporizer20further includes: a heating element L, a control switch M, and a controllable resistor R. The control switch M and the controllable resistor R are connected in series, and are connected in parallel with the heating element L between the first connecting end m1and the second connecting end m2. The control switch M receives a control signal of the processing chip21to be in a turn-on state or a turn-off state. When the control switch M is in the turn-off state, the vaporizer20operates in a first state, a voltage on the first connecting end m1is maintained at the third level signal x3, and the voltage value of the third level signal x3is equal to the voltage value of the first level signal x1, that is, the voltage value V2. When the control switch M is in the turn-on state, the vaporizer20operates in a second state, the voltage on the first connecting end m1is reduced from the voltage value V2corresponding to the first level signal x1to the voltage value V1corresponding to the fourth level signal x4, and the voltage value V1of the fourth level signal x4is greater than the voltage value V0of the second level signal x2but less than the voltage value V2of the first level signal x1, as shown inFIG.5.

Specifically, the control switch M includes a first path end, a second path end, and a control end. The control end of the control switch M is connected with a pin P6of the processing chip21, and is configured to receive a driving signal to be in the turn-on state or the turn-off state according to the driving signal. A second end of the controllable resistor R is connected with the first path end of the control switch M, a first end of the controllable resistor R is connected with a first end of the heating element L, and a second end of the heating element L is connected with the second path end of the control switch M and the second connecting end m2.

Optionally, in an embodiment, the vaporizer20further includes a diode D, where a cathode of the diode D is connected with a voltage pin VDD of the processing chip21, and an anode of the diode D is connected with a pin P7of the processing chip21. In an embodiment, the diode D may also be a MOSFET, a triode, or the like. Optionally, the vaporizer20further includes a capacitor C, where a first end of the capacitor C is connected with the cathode of the diode D, and a second end of the capacitor C is connected with the second connecting end m2.

In an embodiment, the voltage value V2of the first level signal x1ranges from VDD to Vbat, where VDD is a minimum operating voltage of the processing chip21and Vbat is a battery voltage. Specifically, the voltage value V1of the fourth level signal x4ranges from VDD to Vbat, the voltage value V0of the second level signal x2ranges from 0 to 0.3*VDD, and the voltage value V2of the first level signal x1is greater than the voltage value V1of the fourth level signal x4and is further greater than the voltage value V0of the second level signal x2, where VDD (a voltage at which the processing chip21may operate normally) is less than or equal to Vbat (the battery voltage).

During a process that the vaporizer20feeds back data, the voltage value V1of the fourth level signal x4is always greater than the minimum operating voltage VDD of the processing chip21and may supply power to the processing chip21. Therefore, the capacitor C of the processing chip21may be reduced or even canceled to reduce a size and costs of a circuit board of the vaporizer20. Further, the control switch M, the controllable resistor R, the diode D, and the capacitor C may be integrated into the processing chip21to further reduce the costs.

When the control switch M is in the turn-off state, the vaporizer20operates in the first state, the voltage on the first connecting end m1is maintained at the third level signal x3, and the third level signal x3is equal to the first level signal x1. When the control switch M is in the turn-on state, the vaporizer20operates in the second state, the voltage on the first connecting end m1is reduced to the fourth level signal x4, and the voltage value V1of the fourth level signal x4is greater than the voltage value V0of the second level signal x2but less than the voltage value V2of the first level signal x1.

FIG.4is a schematic structural diagram of an embodiment of an electronic vaporization device formed by inserting the vaporizer shown inFIG.3into the battery rod shown inFIG.2. The vaporizer20is inserted into the battery rod10to form the electronic vaporization device. Specifically, when the vaporizer20is inserted into the battery rod10, the first connecting end m1of the vaporizer20is connected with the first connecting end n1of the battery rod10, and the second connecting end m2of the vaporizer20is connected with the second connecting end n2of the battery rod10. In another embodiment, when the vaporizer20is inserted into the battery rod10, the first connecting end m1of the vaporizer20may also be connected with the second connecting end n2of the battery rod10, and the second connecting end m2of the vaporizer20may be connected with the first connecting end n1of the battery rod10. This embodiment is illustrated in detail by using an example in which the first connecting end m1of the vaporizer20is connected with the first connecting end n1of the battery rod10, and the second connecting end m2of the vaporizer20is connected with the second connecting end n2of the battery rod10.

Specifically, referring toFIG.5,FIG.5is a time sequence oscillogram when the battery rod and the vaporizer in the electronic vaporization device shown inFIG.4communicate with each other. When the vaporizer20is inserted into the battery rod10, the battery rod10sends the first communication signal to the vaporizer20. Specifically, the power supply control pin P1of the battery rod10controls the first switch Q1to be turned on, and the cell12outputs the first level signal x1(that is, sending the data “1”) at the first connecting end n1through the first switch Q1that is turned on; or the power supply control pin P1of the battery rod10controls the first switch Q1to be turned off, and the cell12outputs the second level signal x2(that is, sending the data “0”) at the first connecting end n1through the first switch Q1that is turned off.

Specifically, after receiving the first communication signal, the vaporizer20sends the second communication signal to the battery rod10. Specifically, the third level signal x3or the fourth level signal x4is provided for the battery rod10by turn-on or turn-off of the controllable resistor R.

In a specific embodiment, the vaporizer20operates in the first state when the processing chip21controls the controllable switch M to be in the turn-off state. When the vaporizer20operates in the first state, the voltage on the first connecting end m1is maintained at the first level signal x1. Because the voltage value of the third level signal x3is equal to the voltage value of the first level signal x1, that is, the voltage value V2, the detection pin P2detects the third level signal x3in the second communication signal, so that the battery rod10obtains the data “1” fed back by the vaporizer20.

The vaporizer20operates in the second state when the processing chip21controls the controllable switch M to be in the turn-on state. When the vaporizer20operates in the second state, the voltage on the first connecting end m1is reduced to the fourth level signal x4, and the voltage value V1of the fourth level signal x4is greater than the voltage value V0of the second level signal x2but less than the voltage value V2of the first level signal x1, so that the battery rod10obtains the data “0” fed back by the vaporizer20. Specifically, when the controllable switch M is in the turn-on state, an internal resistance of the cell12, an internal resistance of the first switch Q1, and the controllable resistor R form a voltage divider, and the first level signal x1on the first connecting end m1is then reduced to the fourth level signal x4, so that the battery rod10obtains the data “0”.

Specifically, when the detection pin P2of the control chip11detects the third level signal x3or the fourth level signal x4, the comparator141is used to compare the third level signal x3or the fourth level signal x4with the voltage reference Vref, so as to determine that the received data is “1” or “0”. In a specific embodiment, a voltage value of the voltage reference Vref is greater than the voltage value V1of the fourth level signal x4but less than the voltage value V2of the first level signal x1or the third level signal x3. Thus, when the voltage obtained through sampling by the detection pin P2is greater than the voltage reference Vref, it may be determined that the detection pin P2detects the third level signal x3, that is, the battery rod10receives the data “1”; and when the voltage obtained through sampling by the detection pin P2is less than the voltage reference Vref, it may be determined that the detection pin P2detects the fourth level signal x4, that is, the battery rod10receives the data “0”.

Specifically, in an embodiment, the voltage of the voltage reference Vref may be obtained directly from the first level signal x1applied to the heating element L. After the first capacitor C1is fully charged, the third switch Q3is turned off, and the voltage reference Vref may remain stable for a period of time. In other embodiments, the voltage of the voltage reference Vref may also be obtained from a digital-to-analog converter of the control chip11, or may be obtained from the battery voltage Vbat, which is not specifically limited herein.

In an embodiment, a difference between the voltage (Vbat*Rh/(Re+Rh)) on the first connecting end n1when the vaporizer20operates in the first state and the voltage (Vbat*Rp/(Re+Rp)) on the first connecting end n1when the vaporizer operates in the second state is within a range (0, 1.2]. That is:

Vbat is the battery voltage, Re is a sum of the internal resistance of the battery12and an internal resistance of the first switch Q1that is turned on, Rh is a resistance of the heating element L, and Rp is a resistance of the controllable resistor R and the heating element L that are connected in parallel. In an embodiment, a resistance range of the controllable resistor R may be determined through the foregoing formula.

In the electronic vaporization device including the vaporizer and the battery rod of this embodiment, the controllable resistor R is arranged in the vaporizer20. When the controllable switch M is turned on, the controllable resistor R can form a voltage divider with the internal resistance of the cell12and the internal resistance of the first switch Q1that is turned on, to reduce the voltage on the first connection end n1from the first level signal x1to the fourth level signal x4. Therefore, the voltage difference (V2−V0) between the first level signal x1and the second level signal x2is greater than the voltage difference (V2−V1) between the third level signal x3and the fourth level signal x4, and a current flowing through the control switch M is further reduced. In this way, the power of the control switch M may be reduced, thereby reducing the size of the control switch M and reducing the size and the costs of the circuit board of the vaporizer.

FIG.6is a schematic diagram of functional modules of a second embodiment of a battery rod according to this application. Compared with the foregoing first embodiment shown inFIG.1, a difference lies in that this embodiment further includes a current-limiting circuit16connected with the first connection end n1to output a third level signal at the first connection end n1when receiving the second communication signal from the vaporizer20.

Specifically, referring toFIG.7, the current-limiting circuit16includes: a second switch Q2and a current-limiting resistor R0. The second switch Q2includes a first path end, a second path end, and a control end. The first path end of the second switch Q2is connected with the cell12to receive the battery voltage Vbat, and the current-limiting resistor R0is arranged between the second path end of the second switch Q1and the first connection end n1. Specifically, the current-limiting resistor R0connects the second path end of the second switch Q1with the first connecting end n1. The control chip11further includes a current-limiting control pin P0connected with the control end of the second switch Q2to control turn-on of the second switch Q2. When the battery rod10receives the second communication signal from the vaporizer20, the control chip11controls the second switch Q2to be turned on through the current-limiting control pin P0, so as to output the third level signal at the first connecting end n1.

Specifically, referring toFIG.10, in this embodiment, when the vaporizer20operates in the first state, the voltage on the first connection end n1is maintained at the third level signal y3, and the detection pin P2detects the third level signal y3in the second communication signal, thereby obtaining the data “1” fed back by the vaporizer20. A voltage value V1of the third level signal y3is greater than a voltage value V0of a second level signal y2but less than a voltage value V2of a first level signal y1. When the vaporizer20operates in the second state, the voltage on the first connecting end n1is reduced from the voltage value V1of the third level signal y3to the voltage value V0of a fourth level signal y4, and the detection pin P2detects the fourth level signal y4in the second communication signal, thereby obtaining the data “0” fed back by the vaporizer20. The voltage value of the fourth level signal y4is equal to the voltage value of the second level signal y2, which both are the voltage value V0.

FIG.8is a schematic structural diagram of a second embodiment of a vaporizer according to this application. Compared with the schematic structural diagram of the first embodiment of the vaporizer shown inFIG.3, a difference lies in that a controllable resistor R in the vaporizer shown in this embodiment is 0, i.e. the vaporizer shown in this embodiment does not include the controllable resistor R. Specifically, the vaporizer20of this application includes: a first connecting end m1and a second connecting end m2, configured to be connected with a battery rod10when the vaporizer20is inserted into a battery rod10.

The vaporizer20includes a processing chip21connected with the first connecting end m1, to receive a first communication signal from the battery rod10and send a second communication signal to the battery rod10through the first connecting end m1, thereby realizing communication between the battery rod10and the vaporizer20.

The first communication signal includes a first level signal y1as a logic high level and a second level signal y2as a logic low level; and the second communication signal includes a third level signal y3as a logic high level and a fourth level signal y4as a logic low level. Specifically, in this embodiment, a voltage value of the first level signal y1is V2, a voltage value of the second level signal y2is V0, a voltage value of the third level signal y3is V1, and a voltage value of the fourth level signal y4is V0, where a voltage difference (V2−V0) between the voltage value V2of the first level signal y1and the voltage value V0of the second level signal y2is greater than a voltage difference (V1−V0) between the voltage value V1of the third level signal y3and the voltage value V0of the fourth level signal y4.

In an embodiment, the vaporizer20further includes: a heating element L and a control switch M. The control switch M and the heating element L are connected in parallel between the first connecting end m1and the second connecting end m2, and the control switch M receives a control signal of the processing chip21to be in a turn-on state or a turn-off state. When the control switch M is in the turn-off state, a voltage on the first connecting end m1is maintained at the third level signal y3, so that the battery rod10obtains data “1” fed back by the vaporizer20. When the control switch M is in the turn-on state, the voltage on the first connecting end m1is reduced to the fourth level signal y4, so that the battery rod10obtains data “0” fed back by the vaporizer20.

Specifically, the control switch M includes a first path end, a second path end, and a control end. The control end of the control switch M is connected with a pin P6of the processing chip21and is configured to receive a driving signal to be in the turn-on state or the turn-off state according to the driving signal. A second end of the heating element L is connected with the second path end of the control switch M and the second connecting end m2, and a first end of the heating element L is connected with the first path end of the control switch M and the first connecting end m1.

Optionally, in an embodiment, the vaporizer20further includes a diode D, where a cathode of the diode D is connected with a voltage pin VDD of the processing chip21, and an anode of the diode D is connected with a pin P7of the processing chip21. In an embodiment, the diode D may also be a MOSFET, a triode, or the like. Optionally, the vaporizer20further includes a capacitor C, where a first end of the capacitor C is connected with the cathode of the diode D, and a second end of the capacitor C is connected with the second connecting end m2.

In an embodiment, the voltage value V2of the first level signal y1ranges from VDD to Vbat, where VDD is a minimum operating voltage of the processing chip21and Vbat is a battery voltage. Specifically, the voltage value V1of the third level signal y3ranges from 0 to Vbat, the voltage value V0of the second level signal y2ranges from 0 to 0.3*VDD, and the voltage value V2of the first level signal y1is greater than the voltage value V1of the third level signal y3and is further greater than the voltage value V0of the second level signal y2, where VDD (a voltage at which the processing chip21may operate normally) is less than or equal to Vbat (the battery voltage).

Further, the control switch M, the controllable resistor R, the diode D, and the capacitor C may be integrated into the processing chip21to further reduce the costs.

FIG.9is a schematic structural diagram of an embodiment of an electronic vaporization device formed by inserting the vaporizer shown inFIG.8into the battery rod shown inFIG.7. Specifically, when the vaporizer20is inserted into the battery rod10, the first connecting end m1of the vaporizer20is connected with the first connecting end n1of the battery rod10, and the second connecting end m2of the vaporizer20is connected with the second connecting end n2of the battery rod10. In another embodiment, when the vaporizer20is inserted into the battery rod10, the first connecting end m1of the vaporizer20may also be connected with the second connecting end n2of the battery rod10, and the second connecting end m2of the vaporizer20may be connected with the first connecting end n1of the battery rod10. This embodiment is illustrated in detail by using an example in which the first connecting end m1of the vaporizer20is connected with the first connecting end n1of the battery rod10, and the second connecting end m2of the vaporizer20is connected with the second connecting end n2of the battery rod10.

Specifically, referring toFIG.10,FIG.10is a time sequence oscillogram when the battery rod and the vaporizer in the electronic vaporization device shown inFIG.9communicate with each other. When the vaporizer20is inserted into the battery rod10, the battery rod10sends the first communication signal to the vaporizer20. Specifically, the power supply control pin P1of the battery rod10controls the first switch Q1to be turned on, and the cell12outputs the first level signal y1(that is, sending the data “1”) at the first connecting end n1through the first switch Q1that is turned on; or the power supply control pin P1of the battery rod10controls the first switch Q1to be turned off, and the battery12outputs the second level signal y2(that is, sending the data “0”) at the first connecting end n1through the first switch Q1that is turned off.

Specifically, after the vaporizer20receives the first communication signal, the battery rod10controls the second switch Q2to be turned on through the current-limiting pin P0, and due to the existence of the current-limiting resistor R0in the current-limiting circuit16, the voltage value V2of the first level signal y1on the first connection end n1is reduced to the voltage value V1of the third level signal y3. When the processing chip21of the vaporizer20controls the control switch M to be in the turn-off state, the voltage on the first connecting end m1is maintained at the voltage value V1corresponding to the third level signal y3, so that the battery rod10obtains the data “1” fed back by vaporizer20. The voltage value V1of the third level signal y3is greater than the voltage value V0of the second level signal y2but less than the voltage value V2of the first level signal y1. When the processing chip21of the vaporizer20controls the control switch M to be in the turn-on state, the voltage on the first connecting end m1is reduced to the voltage value V0corresponding to the fourth level signal y4, so that the battery rod10obtains the data “0” fed back by the vaporizer20. The voltage value of the fourth level signal y4is equal to the voltage value of the second level signal y2, that is, the voltage value V0.

Specifically, in an embodiment, a voltage of a voltage reference Vref may be obtained directly from the first level signal y1applied to the heating element L. After the first capacitor C1is fully charged, the third switch Q3is turned off, and the voltage reference Vref may remain stable for a period of time. In other embodiments, the voltage of the voltage reference Vref may also be obtained from a digital-to-analog converter of the control chip11, or may be obtained from a battery voltage Vbat, which is not specifically limited herein.

In a specific embodiment, the voltage value of the voltage reference Vref is greater than the voltage value V0of the fourth level signal y4but less than the voltage value V1of the third level signal y3. Thus, when a voltage obtained through sampling by the detection pin P2is greater than the voltage reference Vref, it may be determined that the detection pin P2detects the third level signal y3, that is, the battery rod10receives the data “1”; and when the voltage obtained through sampling by the detection pin P2is less than the voltage reference Vref, it may be determined that the detection pin P2detects the fourth level signal y4, that is, the battery rod10receives the data “0”.

In the electronic vaporization device including the vaporizer and the battery rod in this embodiment, the voltage value V2of the first level signal y1may be reduced to the voltage value V1of the third level signal y3due to the introduction of the current-limiting resistor R0into the battery rod10. In this way, the voltage value of the third level signal y3obtained by the vaporizer is low enough, so that the voltage difference (V2−V0) between the first level signal y1and the second level signal y2is greater than the voltage difference (V1−V0) between the third level signal y3and the fourth level signal y4. In this case, a current flowing through the control switch M is reduced accordingly. Therefore, a low-power control switch M may be used to reduce the size and the costs of the circuit board of the vaporizer.

Only a part of the structure of the electronic vaporization device of this application is described herein, and the remaining of the structure may be the same as that of an existing electronic vaporization device, which is not described herein again.