WO2023083025A1

WO2023083025A1 - Battery rod, atomizer, electronic atomization apparatus, and working method for battery rod

Info

Publication number: WO2023083025A1
Application number: PCT/CN2022/128445
Authority: WO
Inventors: 董文杰; 赵伯松; 方伟明
Original assignee: 海南摩尔兄弟科技有限公司
Priority date: 2021-11-11
Filing date: 2022-10-28
Publication date: 2023-05-19
Also published as: CN114041635A

Abstract

A battery rod (10), an atomizer (20), an electronic atomization apparatus (1), and a working method for a battery rod (10). The battery rod (10) comprises a voltage output end (n1), a grounding end (n2) and a control chip (11), wherein the control chip (11) comprises a signal collection port (P); the signal collection port (P) is connected to the voltage output end (n1), so as to collect a first output voltage (V1) of the battery rod (10), acquires a load voltage (V2) of an atomizer connected to the battery rod (10) and determines an error resistance on the basis of the first output voltage (V1) and the load voltage (V2); and the control chip (11) further controls, on the basis of the error resistance and by means of the voltage output end (n1), the atomizer to realize atomization, thereby improving the accuracy of atomization work control.

Description

A battery rod, atomizer, electronic atomization device and working method of the battery rod

Cross References to Related Applications

This application claims its priority based on the Chinese patent application 202111335127.5 submitted on November 11, 2021, and its entire description is incorporated herein by reference.

【Technical field】

The present application relates to the technical field of electronic atomization, in particular to a battery rod, an atomizer, an electronic atomization device and a working method of the battery rod.

【Background technique】

Most of the existing electronic atomization products need to obtain the resistance value of the heating element in the atomizer in the process of controlling the atomization of the substrate to be atomized, and realize accurate control of the atomization work according to the resistance value, such as accurate control of constant power or constant temperature. control.

However, in actual use, due to contact/connection/contact point oxidation/wire length change between the atomizer and the battery rod, there is an error between the obtained resistance of the heating element and the actual resistance, which affects the atomization work. The accuracy of the control.

Most of the current solutions start from improving production quality and other links to improve product quality, but they cannot fundamentally solve the problem.

【Content of invention】

The present application provides a battery rod, an atomizer, an electronic atomization device and a working method of the battery rod, which can improve the accuracy of atomization work control.

In order to solve the above technical problems, the first technical solution provided by this application is to provide a battery pole, including a voltage output terminal, a ground terminal, and a control chip, the control chip includes a signal collection port, and the signal collection port is connected to the The voltage output terminal to collect the first output voltage of the battery rod, and obtain the load voltage of the atomizer connected to the battery rod, based on the first output voltage, the load voltage and the battery rod The output resistance determines the error resistance; the control chip further controls the atomizer through the voltage output terminal to achieve atomization based on the error resistance.

Wherein, the control chip also includes a first drive port and a signal receiving port, the signal receiving port is connected to the voltage output end; the battery rod also includes: a drive circuit, the drive circuit includes a first drive unit, the The first drive unit is connected to the first drive port of the control chip, the working voltage supply end and the voltage output end; the first drive unit is under the control of the first drive signal output by the first drive port, The working voltage is provided to the atomizer through the voltage output terminal to control the atomizer to collect the load voltage, and the load voltage is received from the voltage output terminal through the signal receiving port.

Wherein, the control chip also includes a second drive port; the drive circuit also includes a second drive unit, the second drive unit is connected to the second drive port of the control chip, the operating voltage supply end and the Voltage output terminal: under the control of the second drive signal output by the second drive port, the second drive unit provides an operating voltage to the atomizer through the voltage output terminal, and through the signal collection port collecting the second output voltage; wherein, the second output voltage is used to determine the output resistance of the battery pole, and the control chip determines the output resistance based on the first output voltage, the load voltage and the output resistance The error resistance described above.

Wherein, the first drive unit includes a first switch, the control end of the first switch is connected to the first drive port, the first channel end of the first switch is connected to the working voltage supply end, and the first switch The second path end of a switch is connected to the voltage output end; the second drive unit includes a second switch, the control end of the second switch is connected to the second drive port, and the first path of the second switch end connected to the working voltage supply end; the drive circuit also includes a reference resistor, the first end of the reference resistor is connected to the second access end of the second switch, and the second end of the reference resistor is connected to the voltage output.

Wherein, the control chip determines the output resistance based on the second output voltage, the working voltage and the resistance value of the reference resistance.

Wherein, the first drive unit is also under the control of the first drive signal output from the first drive port, sends a communication signal to the atomizer through the voltage output terminal, and receives a communication signal from the atomizer After receiving the feedback signal from the atomizer, the atomizer is controlled to collect the load voltage.

Wherein, the control chip determines the actual resistance of the heating element based on the test resistance of the heating element in the atomizer and the error resistance, and controls the atomizer through the voltage output terminal based on the actual resistance to realize Constant temperature or constant power atomization; wherein, the test resistance is the output resistance of the battery rod.

Wherein, the control chip uses the actual resistance to determine the temperature corresponding to the actual resistance based on the resistance-temperature curve table, and then realizes constant temperature atomization; or the control chip determines the temperature corresponding to the actual resistance based on the actual resistance, the error resistance and the The voltage required by the heating element determines the actual voltage of the battery rod, and the constant power atomization is realized by the first drive unit based on the actual voltage.

In order to solve the above technical problems, the second technical solution provided by this application is: provide an atomizer, including a first connection end, a second connection end, a heating element and a driving chip; the heating element is connected to the first connection end and the second connection end, and the first connection end is used to connect the voltage output end of the battery rod, and the second connection end is used to connect the ground end of the battery rod; the driver chip is connected to the The first connection end and the second connection end collect the load voltage of the heating element through the first connection end, and feed the load voltage back to the battery rod; wherein, the mist of the atomizer V is based on an error resistance determined by the battery bar based on the load voltage, the first output voltage of the battery bar.

Wherein, the drive chip includes an acquisition unit and a control unit, the acquisition unit is connected to the first connection end, so as to collect the load voltage of the heating element through the first connection end; the control unit is connected to the first connection end A connection terminal and a second connection terminal feed back the load voltage to the battery pole.

In order to solve the above technical problems, the third technical solution provided by this application is: provide an electronic atomization device, including a battery rod and an atomizer, and the battery rod includes the battery rod described in any one of the above; The atomizer includes the atomizer described in any one of the above.

In order to solve the above technical problems, the fourth technical solution provided by this application is to provide a working method for a battery pole, the method comprising: the battery pole collects the first output voltage, and obtains the first output voltage connected to the battery pole The load voltage of the atomizer; determining an error resistance based on the first output voltage and the load voltage; controlling the atomizer to achieve atomization based on the error resistance.

Wherein, before the step of determining the error resistance based on the first output voltage, the load voltage and the output resistance of the battery pole includes: determining the error resistance based on the second output voltage, the working voltage and the resistance value of the reference resistance The output resistance of the battery rod described above.

Wherein, the step of controlling the atomizer to achieve atomization based on the error resistance includes: determining the actual resistance of the heating element based on the test resistance value of the heating element of the atomizer and the error resistance; Use the actual resistance to determine the temperature corresponding to the actual resistance based on the resistance-temperature curve table, and then realize constant temperature atomization; or determine the battery rod based on the actual resistance, the error resistance and the voltage required by the heating element The actual voltage, through the first drive unit based on the actual voltage to achieve constant power atomization.

The beneficial effect of the present application is different from the situation of the prior art. The battery rod provided by the present application includes a voltage output end grounding end and a control chip, and the control chip includes a signal acquisition port, and the signal acquisition port is connected to the voltage output end to collect the first output Voltage, and obtain the load voltage of the atomizer connected to the battery rod, and determine the error resistance based on the first output voltage and the load voltage; the control chip further controls the atomizer through the voltage output terminal based on the error resistance to achieve precise atomization.

【Description of drawings】

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings that need to be used in the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings without creative work, wherein:

Fig. 1 is a schematic diagram of functional modules of a battery pole provided by an embodiment of the present application;

Fig. 2 is a circuit structure diagram of a battery rod provided by an embodiment of the present application;

Fig. 3 is an equivalent circuit connection structure diagram of an atomizer and a battery rod provided by an embodiment of the present application;

Fig. 4 is a schematic diagram of the communication between the battery rod and the atomizer provided by an embodiment of the present application;

Fig. 5 is a schematic structural diagram of an electronic atomization device provided by an embodiment of the present application;

Fig. 6 is a schematic flow chart of the first embodiment of the working method of the battery rod of the present application;

Fig. 7 is a schematic flow chart of another embodiment of the working method of the battery rod of the present application;

FIG. 8 is a schematic flowchart of step S13 provided by another embodiment.

【Detailed ways】

The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present application. It should be understood that the specific embodiments described here are only used to explain the present application, but not to limit the present application. In addition, it should be noted that, for the convenience of description, only some structures related to the present application are shown in the drawings but not all structures. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

In the above descriptions of this specification, unless otherwise clearly specified and limited, terms such as "fixed", "installed", "connected" or "connected" should be interpreted in a broad sense. For example, as far as the term "connection" is concerned, it may be a fixed connection, a detachable connection, or an integral body; it may be a mechanical connection or an electrical connection; it may be a direct connection or an indirect connection through an intermediary , or it can be the internal communication of two elements or the interaction relationship between two elements. Therefore, unless otherwise clearly defined in this specification, those skilled in the art can understand the specific meanings of the above terms in this application according to specific situations.

The terms "first" and "second" in this application are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features shown. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of these features. Furthermore, the terms "include" and "have", as well as any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the listed steps or units, but optionally also includes unlisted steps or units, or optionally further includes For other steps or units inherent in these processes, methods, products or apparatuses.

Reference herein to an "embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the present application. The occurrences of this phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is understood by those skilled in the art, both explicitly and implicitly, that the embodiments described herein can be combined with other embodiments.

The inventor of the present application found that there is usually a certain error resistance between the battery rod and the atomizer, which specifically includes the wire resistance generated by the wiring resistance and welding wire resistance on the PCB board, and the resistance between the battery rod and the atomizer. The resistance between the contacts, such as the contact resistance between the thimble of the battery rod and the pod, etc. The error resistance is not constant. In practical applications, if the change of the error resistance is not considered, it will affect the atomization effect of the atomizer, so that the atomizer cannot achieve precise atomization, such as precise constant power or constant temperature fog , leading to poor user experience.

Referring to FIG. 1 , it is a schematic diagram of functional modules of a battery pole provided by an embodiment of the present application. Specifically, the battery rod 10 includes a voltage output terminal n1 , a ground terminal n2 and a control chip 11 , the voltage output terminal n1 and the ground terminal n2 are used for electrical connection with the atomizer inserted into the battery rod 10 . The control chip 11 includes a signal collection port P, the signal collection port P is connected to the voltage output terminal n1, collects the first output voltage V1 of the battery rod 10, and obtains the load voltage V2 of the atomizer connected to the battery rod 10, based on the first output The voltage V1 and the load voltage V2 determine the error resistance between the battery rod 10 and the atomizer; specifically, the error resistance between the battery rod 10 and the atomizer is represented by Rs, that is, Rs=(V1-V2)/( V1/R), where R represents the output resistance of the battery pole 10.

The control chip 11 further controls the atomizer through the voltage output terminal n1 to achieve atomization based on the error resistance.

Referring to Fig. 2 and Fig. 3, Fig. 2 is a circuit structure diagram of a battery rod provided by an embodiment of the present application, and Fig. 3 is an equivalent circuit connection structure diagram of an atomizer and a battery rod provided by an embodiment of the present application, and the control chip 11 also includes a first driving port P1, a second driving port P2 and a signal receiving port P3; the battery rod 10 also includes a driving circuit 14, and the driving circuit 14 includes a first driving unit 141, a second driving unit 142 and a reference resistor R1.

Among them, the first driving unit 141 is connected to the first driving port P1, the battery cell 13 and the voltage output terminal n1; the battery cell 13 serves as the working voltage supply end of the battery pole 10 to provide the working voltage Vbat for the atomizer 20, and the signal receiving port P3 and The voltage output terminal n1 is electrically connected.

The atomizer 20 includes a first connection terminal m1, a second connection terminal m2, a heating element R2 and a driver chip 21; the first connection terminal m1 is used to connect the voltage output terminal n1 of the battery rod 10, and the second connection terminal m2 is used to connect The ground terminal n2 of the battery pole 10; the first end of the heating element R2 is connected to the voltage output terminal n1 of the battery pole 10 through the first connection end m1, and the second end of the heating element R2 is connected to the voltage output terminal n1 of the battery pole 10 through the second connection end m2. The ground terminal n2 is connected. The driving chip 21 is connected to the first connection terminal m1 and the second connection terminal m2 , collects the load voltage V2 of the heating element R2 through the first connection terminal m1 , and feeds the load voltage V2 to the battery rod 10 .

In one embodiment, the driver chip 21 further includes an acquisition unit 211 and a control unit 212 , the acquisition unit 211 is connected to the first connection terminal m1 to collect the load voltage V2 of the heating element R2 through the first connection terminal m1 . The control unit 212 is connected to the first connection terminal m1 and the second connection terminal m2 to feed back the load voltage V2 to the battery pole 10 .

In some optional implementation manners, the acquisition unit 211 further includes a signal input amplification module, an ADC acquisition module, and the like. The control unit 212 also includes a data receiving and processing control module, a signal forward and reverse switching module, and a signal output module. Wherein, the signal output module may be a transistor switch. Specifically, the first drive unit 141 is continuously turned on under the control of the first drive signal output by the first drive port P1, provides the working voltage Vbat to the atomizer 20 through the voltage output terminal n1, and notifies the collection unit 211 to collect the load voltage V2 , and the collected load voltage V2 is sent to the signal receiving port P3 through the control unit 212, the first connection terminal m1 and the voltage output terminal n1.

In one embodiment, the first drive unit 141 is continuously turned on under the control of the first drive signal output from the first drive port P1, and provides the working voltage Vbat to the atomizer 20 through the voltage output terminal n1, and through the signal collection port P Communicate with the atomizer 20 to realize the identification of the battery rod 10 and the atomizer 20. After the identification is successful, notify the atomizer 20 to start collecting the load voltage V2, where the signal collection port P is a multiplex port, which is compatible with The function of signal output and ADC input.

Referring to FIG. 4 , it is a schematic diagram of the communication between the battery rod and the atomizer provided by an embodiment of the present application. In one embodiment, the first driving unit 141 controls the first driving signal output from the first driving port P1 to The signal collection port P sends a communication signal to the atomizer 20 through the voltage output terminal n1, and controls the atomizer 20 to collect the load voltage V2 after receiving the feedback signal from the atomizer 20 at the signal receiving port P3. Specifically, A is the peak pulse corresponding to the peak signal, and B is the data corresponding to the peak pulse recombined by the control chip 11, wherein the peak signal is a signal output from the signal receiving port P3.

For example, when the communication signal sent by the battery rod 10 to the atomizer 20 is represented as 01000001, and the feedback signal received by the battery rod 10 from the atomizer 20 is also represented as 01000001, the authentication between the battery rod 10 and the atomizer 20 is successful.

Further, the second drive unit 142 is connected to the second drive port P2, the working voltage supply terminal and the voltage output terminal n1, specifically, the first drive unit 141 is turned off, the second drive unit 142 is continuously turned on, and the second drive unit 142 passes The reference resistor R1 is connected to the voltage output terminal n1, and the second drive unit 142 provides the working voltage Vbat to the atomizer 20 through the voltage output terminal n1 under the control of the second drive signal output from the second drive port P2, and through the signal acquisition The port P collects the second output voltage V0.

The value of the reference resistor R1 is selected according to the needs of the actual circuit. In some optional implementation manners, the value of the reference resistor R1 is between 3-7 ohms.

Referring to FIG. 2 , in one embodiment, the first drive unit 141 includes a first switch Q1, the control terminal of the first switch Q1 is connected to the first drive port P1, and the first channel terminal of the first switch Q1 is connected to the working voltage supply terminal Vbat , the second channel end of the first switch Q1 is connected to the voltage output terminal n1; the second drive unit 142 includes a second switch Q2, the control end of the second switch Q2 is connected to the second drive port P2, and the first channel end of the second switch Q2 connected to the working voltage supply terminal Vbat; the second channel terminal of the second switch Q2 is connected to the reference resistor R1, and the second terminal of the reference resistor R1 is connected to the voltage output terminal n1.

Wherein, when the atomizer 20 and the battery rod 10 are electrically connected, the error resistance Rs formed by wire resistance, contact resistance, etc. is equivalently connected between the second channel end of the first switch Q1 and the first connection end of the atomizer. between m1.

Wherein, the first output voltage V1 is the voltage from point D1 to ground when the first switch Q1 is turned on, that is, the voltage collected at point P. The load voltage V2 is the voltage from point D2 to ground when the first switch Q1 is turned on, which is directly collected by the collection unit 211 at the atomizer 20 and sent to the signal receiving port P3.

Wherein, the control chip determines the output resistance R of the battery pole 10 based on the second output voltage V0, the working voltage Vbat and the resistance value of the reference resistance R1. Wherein, the second output voltage V0 is the voltage between point D1 and ground when the first switch Q1 is turned off and the second switch Q2 is turned on. The output resistance R of the battery rod 10 is the resistance of point D1 to ground when the first switch Q1 is turned on, which includes the resistance of the error resistance Rs and the actual resistance of the heating element R2. Specifically, the second output voltage V0 and the working voltage Vbat are obtained through the signal acquisition port P, and the resistance value of the reference resistor R1 is known, so the output resistor R can be obtained by the formula V0/Vbat=R/(R+R1). Further, the error resistance Rs between the battery rod 10 and the atomizer is obtained by the formula Rs=(V1-V2)/(V1/R).

Further, referring to FIG. 3 , the first terminal of the heating element R2 in the atomizer 20 is connected to the voltage output terminal n1, the second terminal of the heating element R2 is connected to the ground terminal n2, and the control chip 11 is based on the heating element of the atomizer 20 The test resistance of R2 and the error resistance Rs determine the actual resistance Rload of the heating element R2. Based on the actual resistance Rload of the heating element R2, the atomizer 20 is controlled through the voltage output terminal n1 to achieve constant temperature or constant power atomization.

Wherein, the test resistance of the heating element R2 is the output resistance R of the battery rod 10 . It can be understood that in an ideal situation where there is no error resistance Rs, the output resistance R obtained by the battery rod 10 is the actual resistance of the heating element R2. However, in practical applications, when the atomizer 20 and the battery rod 10 are electrically connected, the The error resistance Rs formed by wire resistance, contact resistance, etc. makes the output resistance R obtained by the battery rod 10 be the sum of the actual resistance of the heating element R2 and the error resistance Rs, that is, the test resistance of the heating element R2.

In one embodiment, the control chip 11 uses the actual resistance Rload of the heating element R2 to determine the temperature corresponding to the actual resistance based on the resistance-temperature curve table, thereby realizing constant temperature atomization. Specifically, the heating element R2 inside the atomizer 20 is equivalent to a thermistor; it changes with temperature when heated. When the error resistance Rs changes during use (such as the substrate to be atomized is polluted and corroded), it will cause the resistance value of the heating element R2 to change (which can be regarded as a change in the resistance of the thermistor), resulting in the output of the heating element R2 Constant temperature is not allowed. Therefore, it is necessary to collect the error resistance Rs before the user puffs. When the temperature is constant, the actual resistance of the heating element R2 can be obtained after removing this resistance. In this embodiment, the first switch Q1 is turned off, the second switch Q2 is turned on, the error resistance Rs and the total resistance Rout of the heating element R2 are obtained after the signal acquisition port P is collected, that is, the output resistance R of the battery rod 10, and the heating element The actual resistance Rload of R2 is Rload=Rout-Rs, and then look up the corresponding temperature according to the temperature curve table corresponding to the actual resistance Rload of the heating element R2 to ensure that the temperature output by the heating element R2 is within the required range.

In another embodiment, the control chip 11 determines the actual voltage Vout of the battery pole 10 based on the actual resistance Rload of the heating element R2, the error resistance Rs, and the required voltage of the heating element R2, and realizes constant voltage Vout based on the actual voltage Vout through the first driving unit 141. Power atomization. In this embodiment, the first switch Q1 is turned off, the second switch Q2 is turned on, and the error resistance Rs and the total resistance Rout of the heating element R2 are obtained after the signal acquisition port P collects, then the actual resistance Rload of the heating element R2 is Rload=Rout -Rs, and then calculate the actual voltage Vload on the heating element R2 through the actual resistance Rload of the heating element R2, then the actual voltage Vout that the battery pole 10 needs to output is Vout=Vload*(Rload+Rs)/Rload, where Vload is The actual voltage on the heating element R2 can be obtained by the formula Vload=Rload*(V1/R). The actual voltage Vout output by the battery pole 10 is controlled by the first switch Q1 to output a driving signal to be constant, which can ensure the control of the atomizer 20. Constant power atomization.

In some optional implementation manners, the signal collection port P is connected to a constant current source switch or other equivalent switches capable of generating spike signals.

In one embodiment, the control chip 11 further includes a signal receiving and processing module and a logic processing unit, and the signal receiving port P3 is connected to the logic processing unit through the signal receiving and processing module. Wherein, the signal receiving and processing module may be an operational amplifier or a comparator. Wherein, the signal receiving and processing module is used to receive and process the communication and identification between the battery rod 10 and the atomizer 20 , and the logic processing unit is used to calculate and process the data returned by the atomizer 20 received by the control chip 11 .

The battery rod 10 provided in this application collects the first output voltage V1 of the battery rod 10 through the signal acquisition port P of the control chip 11, and obtains the load voltage V2 of the atomizer 20 connected to the battery rod 10, and according to the first output The voltage V1 and the load voltage V2 determine the error resistance Rs, and the control chip 11 further obtains the actual resistance Rload of the heating element R2 in the atomizer 20 or the actual voltage Vout that the battery pole 10 needs to output based on the error resistance Rs, and controls the voltage output terminal n1 The atomizer 20 realizes precise atomization.

Please refer to FIG. 5, which is a schematic structural diagram of an electronic atomization device provided by an embodiment of the present application. The electronic atomization device 1 includes a battery rod 10 and an atomizer 20, wherein the atomizer 20 is used for heating and atomizing to be atomized. Substrate; the battery rod 10 is electrically connected to the atomizer 20, and the operation of the atomizer 20 is controlled so that the atomizer 20 heats and atomizes the substrate to be atomized.

Referring to Fig. 6, it is a schematic flowchart of the first embodiment of the working method of the battery pole of the present application, which specifically includes:

Step S11: the battery rod collects the first output voltage, and obtains the load voltage of the atomizer connected to the battery rod.

Specifically, the control chip in the battery rod collects the first output voltage output to the atomizer through the signal collection port and the voltage output terminal of the battery rod, and obtains the load voltage of the atomizer connected to the battery rod. Among them, due to the error resistance caused by the contact resistance and wire resistance between the battery rod and the atomizer, the first output voltage of the battery rod is not exactly the same as the load voltage of the atomizer.

Step S12: Determine the error resistance based on the first output voltage and the load voltage.

Due to the long-term use of the electronic atomization device, the contact/coupling/contact point oxidation/change of wire length between the atomizer and the battery rod, etc., lead to changes in contact resistance and wire resistance. , requires re-error resistors. Specifically, according to the collected first output voltage and load voltage, it is obtained by the formula Rs=(V1-V2)/(V1/R), wherein, Rs is the error resistance, and the error resistance includes the electrical connection between the atomizer and the battery rod The final wire resistance and contact resistance, V1 is the first output voltage of the battery rod, V2 is the load voltage of the atomizer, and R is the output resistance of the battery rod.

Step S13: Control the atomizer based on the error resistance to achieve atomization.

Specifically, the control chip further obtains the actual resistance of the heating element in the atomizer or the actual voltage that the battery rod needs to output based on the error resistance, and controls the atomizer through the voltage output terminal to achieve precise atomization.

Referring to FIG. 7 , it is a schematic flow chart of another embodiment of the working method of the battery pole of the present application, wherein step S21 in this embodiment is the same as step S11 in FIG. 6 , and step S24 in this embodiment is the same as step S13 in FIG. 6 , different from the working method flow of the battery rod shown in Figure 6, this embodiment also includes:

Step S22: Determine the output resistance of the battery rod based on the second output voltage, the working voltage and the resistance value of the reference resistance.

Specifically, the output resistance is the total output resistance collected by the control chip, including the error resistance after the battery rod is electrically connected to the atomizer and the actual resistance of the heating element, the second output voltage, the working voltage and the battery voltage collected by the control chip. The reference resistance of the rod, the output resistance is obtained by the formula V0/Vbat=R/(R+R1). Wherein, V0 is the second output voltage, Vbat is the working voltage of the battery pole, R is the output resistance of the battery pole, and R1 is the reference resistance in the battery pole.

Step S23: Determine the error resistance based on the first output voltage, the load voltage and the output resistance.

Specifically, through the output resistance calculated in step S22, and the first output voltage and load voltage collected by the control chip, the error resistance is obtained according to the formula Rs=(V1-V2)/(V1/R).

Referring to FIG. 8, it is a schematic flowchart of step S13 provided in another embodiment, which specifically includes:

S31: Determine the actual resistance of the heating element based on the test resistance and the error resistance of the heating element of the atomizer.

Specifically, the control chip controls the signal acquisition port to acquire the test resistance of the atomizer, wherein the test resistance of the atomizer is the output resistance of the battery rod, and the actual resistance of the heating element is obtained by the formula Rload=Rout-Rs. Among them, Rload is the actual resistance of the heating element, Rout is the test resistance of the heating element, and Rs is the error resistance.

S32: Use the actual resistance to determine the temperature corresponding to the actual resistance based on the resistance-temperature curve table, and then realize constant temperature atomization; or determine the actual voltage of the battery rod based on the actual resistance, the error resistance, and the voltage required by the heating element, and use the first drive unit based on The actual voltage realizes constant power atomization.

Specifically, by acquiring the actual resistance of the heating element, the control chip controls the heating element to keep the output temperature within a required range according to the pre-stored resistance-temperature curve table.

Alternatively, the control chip obtains the actual voltage to be output by the battery rod according to the formula Vout=Vload*(Rload+Rs)/Rload based on the actual resistance, the error resistance and the required voltage of the heating element. Wherein, Vout is the actual voltage to be output by the battery rod, Vload is the actual voltage on the heating element, and the actual voltage on the heating element can be obtained by the formula Vload=Rload*(V1/R). The control chip outputs a drive signal through the first drive port to control the actual voltage output by the battery rod to be constant, so as to achieve constant power atomization of the atomized substance to be atomized by the atomizer connected to the battery rod.

The working method of the battery rod provided by the application collects the first output voltage of the battery rod through the control chip in the battery rod, and obtains the load voltage of the atomizer connected to the battery rod; based on the obtained first output voltage, load voltage Determine the error resistance between the battery rod and the atomizer; control the atomizer based on the error resistance to achieve precise atomization.

The above is only the implementation mode of this application, and does not limit the scope of patents of this application. Any equivalent structure or equivalent process transformation made by using the contents of this application specification and drawings, or directly or indirectly used in other related technical fields, All are included in the scope of patent protection of the present application in the same way.

Claims

A battery pole, comprising:

Voltage output terminal and ground terminal;

A control chip, the control chip includes a signal collection port, the signal collection port is connected to the voltage output terminal to collect the first output voltage of the battery rod, and obtain the load of the atomizer connected to the battery rod voltage, based on the first output voltage and the load voltage to determine an error resistance; the control chip further controls the atomizer through the voltage output terminal to achieve atomization based on the error resistance.
The battery pole according to claim 1, wherein the control chip further comprises: a first drive port and a signal receiving port, and the signal receiving port is connected to the voltage output terminal;

The battery pole also includes:

A driving circuit, the driving circuit includes a first driving unit, the first driving unit is connected to the first driving port of the control chip, the working voltage supply terminal and the voltage output terminal;

Under the control of the first drive signal output by the first drive port, the first drive unit provides an operating voltage to the atomizer through the voltage output terminal, so as to control the atomizer to collect the load voltage, and receive the load voltage from the voltage output terminal through the signal receiving port.
The battery pole according to claim 2, wherein the control chip further comprises: a second drive port;

The driving circuit further includes a second driving unit, the second driving unit is connected to the second driving port of the control chip, the working voltage supply terminal and the voltage output terminal;

Under the control of the second driving signal output by the second driving port, the second driving unit provides the working voltage to the atomizer through the voltage output terminal, and collects the second output through the signal collecting port Voltage;

Wherein, the second output voltage is used to determine the output resistance of the battery pole, and the control chip determines the error resistance based on the first output voltage, the load voltage and the output resistance.
The battery pole according to claim 3, wherein,

The first drive unit includes: a first switch, the control end of the first switch is connected to the first drive port, the first channel end of the first switch is connected to the working voltage supply end, and the first The second access end of the switch is connected to the voltage output end;

The second drive unit includes: a second switch, the control end of the second switch is connected to the second drive port, and the first channel end of the second switch is connected to the working voltage supply end;

A reference resistor, the first terminal of the reference resistor is connected to the second access terminal of the second switch, and the second terminal of the reference resistor is connected to the voltage output terminal.
The battery pole according to claim 4, wherein the control chip determines the output resistance based on the second output voltage, the operating voltage and a resistance value of the reference resistance.
The battery rod according to claim 2, wherein the first drive unit also sends communication to the atomizer through the voltage output terminal under the control of the first drive signal output from the first drive port signal, and after receiving the feedback signal from the atomizer, control the atomizer to collect the load voltage.
The battery rod according to claim 5, wherein the control chip determines the actual resistance of the heating element based on the test resistance of the heating element in the atomizer and the error resistance, based on the actual resistance through the The voltage output terminal controls the atomizer to achieve constant temperature or constant power atomization;

Wherein, the test resistance is the output resistance of the battery rod.
The battery rod according to claim 7, wherein the control chip uses the actual resistance to determine the temperature corresponding to the actual resistance based on a resistance-temperature curve table, thereby realizing constant temperature atomization; or

The control chip determines the actual voltage of the battery rod based on the actual resistance, the error resistance, and the required voltage of the heating element, and realizes constant power atomization based on the actual voltage through the first drive unit.
An atomizer, wherein the atomizer comprises:

a first connection end and a second connection end;

The heating element is connected between the first connection end and the second connection end, and the first connection end is used for connecting the voltage output end of the battery rod, and the second connection end is used for connecting the battery rod ground terminal;

A driver chip, the driver chip is connected to the first connection terminal and the second connection terminal, collects the load voltage of the heating element through the first connection terminal, and feeds back the load voltage to the battery rod ;

Wherein, the atomization of the atomizer is based on an error resistance, and the error resistance is determined by the battery rod based on the load voltage and the first output voltage of the battery rod.
The atomizer according to claim 9, wherein the driver chip comprises:

an acquisition unit, the acquisition unit is connected to the first connection end, so as to collect the load voltage of the heating element through the first connection end;

The control unit is connected to the first connection terminal and the second connection terminal, and feeds back the load voltage to the battery pole.
An electronic atomization device, including:

A battery rod, the battery rod comprising the battery rod according to any one of claims 1-8;

An atomizer, the atomizer comprising the atomizer according to any one of claims 9-10.
A working method of a battery pole, wherein the method comprises:

The battery rod collects the first output voltage, and obtains the load voltage of the atomizer connected to the battery rod;

determining an error resistance based on the first output voltage and the load voltage;

Controlling the atomizer based on the error resistance to achieve atomization.
The working method according to claim 12, wherein the step of determining an error resistance based on the first output voltage, the load voltage, and the output resistance of the battery rod includes:

The output resistance of the battery pole is determined based on the second output voltage, the working voltage and the resistance value of the reference resistance.
The working method according to claim 13, wherein the step of controlling the atomizer to achieve atomization based on the error resistance comprises:

determining an actual resistance of the heating element of the atomizer based on a measured resistance of the heating element of the atomizer and the error resistance;

Using the actual resistance to determine the temperature corresponding to the actual resistance based on the resistance-temperature curve table, and then realize constant temperature atomization; or

The actual voltage of the battery rod is determined based on the actual resistance, the error resistance, and the required voltage of the heating element, and constant power atomization is realized based on the actual voltage by the first drive unit.