WO2023083015A1

WO2023083015A1 - Heating assembly, electronic atomization apparatus, and control method for heating assembly

Info

Publication number: WO2023083015A1
Application number: PCT/CN2022/128055
Authority: WO
Inventors: 赵书民
Original assignee: 深圳麦时科技有限公司
Priority date: 2021-11-10
Filing date: 2022-10-27
Publication date: 2023-05-19
Also published as: CN114128928A

Abstract

A heating assembly (10), a control method for a heating assembly (10), and an electronic atomization apparatus. The heating assembly (10) comprises a heating element (11) and a control unit (12), wherein the control unit (12) controls a passage between a battery assembly (20), which is connected to the heating assembly (10), and the heating element (11), such that the heating element (11) performs a heating operation, and the control unit (12) measures the heating time of the heating element (11); and the control unit (12) determines, on the basis of the heating time, whether the heating element (11) has an overheating risk, and disconnects the passage between the battery assembly (20) and the heating element (11) in response to the heating element (11) having an overheating risk. By means of measuring the heating time of a heating element (11), it is determined whether the heating element (11) has an overheating risk, and the temperature of the heating element (11) is kept at a safe temperature, such that the heating element (11) is prevented from overheating and thus damaging other components in a heating assembly (10), thereby improving the safety and stability of the heating assembly (10).

Description

A heating component, an electronic atomization device, and a control method for the heating component

Cross References to Related Applications

This application claims its priority based on the Chinese patent application 202111328392.0 filed on November 10, 2021, and its entire description is incorporated herein by reference.

【Technical field】

The present application relates to the field of electronic atomization devices, in particular to a heating component, an electronic atomization device and a method for controlling the heating component.

【Background technique】

The electronic atomization device is used to atomize the substrate to be atomized, which can be used in different fields, for example, to bake the solid substrate of plant leaves with specific aroma in a heat-not-burn manner so that the solid substrate of the leaf is Roasting forms an aerosol, and further, plant leaves can be added with ingredients such as flavors and fragrances, and at the same time, they are roasted and mixed in the aerosol, so that the aerosol has the desired aroma.

Existing electronic atomization devices generally include a battery assembly and a heating assembly, wherein the heating assembly stores the substance to be atomized and a heating element, and the battery assembly controls the power supply of the heating element so that the heating element heats and atomizes the substance to be atomized.

However, in the heating atomization process of the existing electronic atomization device, if the temperature of the heating element is too high, it is easy to damage other components in the heating assembly, and there is a safety risk to the user.

【Application content】

The present application provides a heating assembly, an electronic atomization device and a control method for the heating assembly, which can effectively control the temperature of the heating element and ensure the atomization effect.

In order to solve the above technical problems, the first technical solution provided by this application is: provide a heating assembly, the heating assembly includes a heating element and a control unit; pathway, so that the heating element performs heating operation, and detects the heating time of the heating element, wherein the control unit judges whether there is a risk of overheating of the heating element based on the heating time, and disconnects the battery assembly from the heating element in response to the risk of overheating of the heating element. path between.

Wherein, the heating assembly further includes a switch unit, which is arranged on the path between the heating element and the battery assembly; wherein, the control unit is connected to the switch unit and controls the conduction of the switch unit to heat the heating element; the control unit further detects that the switch unit The conduction time is determined based on the conduction time to determine whether the heating element has an overheating risk, and in response to the heating element having an overheating risk, the control unit controls the switch unit to turn off.

Wherein, the control unit detects the accumulated conduction time of the switch unit within a preset time period, and judges whether the heating element has an overheating risk based on the accumulated conduction time.

Wherein, in response to the accumulated on-time being greater than a time threshold, the control unit determines that the heating element has a risk of overheating.

Wherein, the control unit detects the first conduction time of the switch unit; in response to the first conduction time being not greater than a preset time period, and in response to the first conduction time being not greater than a time threshold, there is no risk of overheating of the heating element.

Wherein, the control unit detects the second conduction time of the switch unit; in response to the time sum of the second conduction time and the first conduction time being not greater than a preset time period, and in response to the second conduction time and the first conduction time time and the sum of time is not greater than the time threshold, then there is no risk of overheating of the heating element.

Wherein, in response to the time sum of the second conduction time and the first conduction time being not greater than the preset time period, and in response to the time sum of the second conduction time and the first conduction time being greater than the time threshold, the heating element exists Risk of overheating.

In order to solve the above technical problems, the second technical solution provided by the present application is to provide a control method of the heating assembly, including: detecting the heating time of the heating element of the heating assembly, and judging whether the heating element has an overheating risk based on the heating time; responding Stop heating the heating element as there is a risk of overheating the heating element.

In order to solve the above technical problems, the third technical solution provided by this application is: provide an electronic atomization device, including a heating assembly and a battery assembly; the heating assembly includes any one of the above heating assemblies; the battery assembly is connected to the heating assembly, It is used to provide power supply voltage for heating components to heat the heating elements of the heating components.

Beneficial effects of the present application, different from the situation of the prior art, the heating assembly provided by the present application includes a heating element and a control unit; wherein the control unit judges whether the heating element has an overheating risk based on the heating time, and responds to the overheating risk of the heating element , disconnect the path between the battery pack and the heating element. The method of the present application detects the heating time of the heating element, judges whether there is an overheating risk of the heating element based on the heating time, and stops heating when there is a risk of overheating, ensures that the temperature of the heating element is at a safe temperature, effectively controls the temperature of the heating element, and prevents Overheating of the heating element will damage other components in the heating assembly, thereby improving the safety and stability of the heating assembly and ensuring the atomization effect.

【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 heating assembly provided by an embodiment of the present application;

Fig. 2 is a schematic circuit diagram of a heating assembly provided by an embodiment of the present application;

FIG. 3 is a schematic diagram of a preset time period provided by an embodiment of the present application;

FIG. 4 is a schematic diagram of a preset time period provided by another embodiment of the present application;

FIG. 5 is a schematic flow chart of an embodiment of a method for controlling a heating component of the present application;

FIG. 6 is a schematic flowchart of an embodiment of a method for controlling a heating component of the present application;

FIG. 7 is a schematic structural diagram of an electronic atomization device provided by an embodiment of the present application.

【Detailed ways】

The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of them. 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.

Referring to FIG. 1 , it is a schematic diagram of the functional modules of the heating assembly provided by an embodiment of the present application. Specifically, the heating assembly 10 includes a heating element 11 and a control unit 12, and the control unit 12 controls the operation of the heating element 11 to atomize the substrate to be atomized.

Specifically, the control unit 12 controls the passage between the battery assembly 20 connected to the heating assembly 10 and the heating element 11 . When heating is required, the control unit 12 controls the conduction of the path between the battery assembly 20 and the heating element 11 , and at this time the battery assembly 20 supplies power to the heating element 11 to make the heating element 11 generate heat. When the heating is stopped, the control unit 12 controls the path between the battery assembly 20 and the heating element 11 to be disconnected, and at this time the battery assembly 20 stops supplying power to the heating element 11 .

It can be understood that the control unit 12 generally uses the PWM signal to control the on-off between the battery assembly 20 and the heating element 11. Specifically, the battery assembly 20 supplies power to the heating element 11 when the PWM signal is at a high level, so that the heating element 11 heats up. , when the PWM signal is at a low level, stop supplying power to the heating element 11, so that the heating element 11 cools down. Specifically, in order to prevent the heating element 11 from being continuously heated and burn the heating element 11 or produce a burnt smell, the heating element 11 is generally stopped heating after a period of time, and then continues to heat the heating element 11 after stopping heating for a period of time. 11 Heat.

It can be understood that the longer the heating time, that is, the higher the temperature of the heating element 11, so there is generally a safety time. When the heating time does not exceed the safety time, the temperature of the heating element 11 is within the safe temperature. During the safety time, the temperature of the heating element 11 is too high, and there is a risk of overheating. Therefore, in this application, the control unit 12 judges whether the heating element 11 is at risk of overheating based on the heating time, and when the heating element 11 is at risk of overheating, disconnects the path between the battery assembly 20 and the heating element 11 to stop heating.

Specifically, in order to prevent the heating time of the heating element 11 from being too long, causing the temperature of the heating element 11 to be too high, thereby affecting the atomization effect and causing unsafe hazards, the control unit 12 judges whether the heating element 11 has a risk of overheating based on the heating time, and responds to There is a risk of overheating of the heating element 11 , disconnecting the path between the battery assembly 20 and the heating element 11 . In one embodiment, the control unit 12 counts the heating time of the heating element 11 within a certain period of time. If the heating time of the heating element 11 is greater than the preset heating time, it is determined that the heating element 11 has a risk of overheating, and the control unit 12 controls the battery assembly. The path between 20 and the heating element 11 is disconnected, the heating element 11 is stopped from heating, and the temperature gradually decreases to the target temperature.

In one embodiment, the control unit 12 turns on or off the path between the battery assembly 20 and the heating element 11 through the PWM signal. For example, when the control unit 12 detects that the heating time of the heating element 11 is longer than the preset heating time, the control unit 12 Cut off the path between the battery assembly 20 and the heating element 11 through the PWM signal; when the control unit 12 detects that the heating time of the heating element 11 is less than the preset heating time, the control unit 12 conducts the battery assembly 20 and the heating element 11 through the PWM signal pathway between.

Through the method of the present application, it is possible to effectively control the heating time of the heating element 11, ensure that the temperature of the heating element 11 is at a safe temperature, prevent the heating element 11 from overheating and damage other components in the heating assembly 10, thereby improving the safety and stability of the heating assembly 10 , to ensure the atomization effect. In one embodiment, as shown in FIG. 2, the heating assembly 10 further includes a switch unit 121, and the switch unit 121 is arranged on the path between the heating element 11 and the battery assembly 20; the control unit 12 is connected to the switch unit 121 to control the switch unit 121 is turned on to heat the heating element 11; the control unit 12 further detects the conduction time of the switch unit 121, judges whether the heating element 11 has an overheating risk based on the conduction time, and responds to the heating element 11 having an overheating risk, controls The unit 12 controls the switch unit 121 to turn off. It can be understood that the conduction time of the switch unit 121 is the heating time of the heating element 11 . In one embodiment, the switch unit 121 is a MOS transistor. Specifically, the switch unit 121 may be a PMOS transistor or an NMOS transistor. In another embodiment, the switch unit 121 may also be a triode, such as a P-type triode or an N-type triode, which is not specifically limited.

In a specific embodiment, the control unit 12 judges the heating time of the heating element 11 by detecting the conduction time of the switch unit 121. When it detects that the heating time of the heating element 11 is greater than the preset heating time, the control unit 12 outputs a PWM signal to control The switch unit 121 is turned off.

In another specific embodiment, the control unit 12 detects the accumulated conduction time of the switch unit 121 within the preset time period ΔT, and judges whether the heating element 11 has an overheating risk based on the accumulated conduction time. Specifically, the control unit 12 utilizes the path between the battery assembly 20 and the heating element 11 of the PWM signal. During the period of ΔT, there are multiple periods of high and low levels, and the control unit 12 counts the accumulated time of the high level within ΔT. , judging whether the heating element 11 has a risk of overheating based on the accumulated time of the high level. It can be understood that when the power level is high, the battery assembly 20 heats the heating element 11 . Specifically, as shown in FIG. 3 , within the preset time period ΔT, the switch unit 121 has multiple on-times t1, t2, t3 and multiple off-times t1', t2', t3', that is, at t1 , t2, t3, the heating element 11 is heated, and at t1', t2', t3', the heating element 11 is not heated. The control unit 12 accumulates multiple conduction times of the switch unit 121 within the preset time period ΔT, that is, the control unit 12 calculates the sum of the conduction times within ΔT, t=t1+t2+t3, and the sum of the conduction times t Compared with the preset conduction time in the preset time period ΔT, if the control unit 12 detects that the accumulated conduction time t of the switch unit 121 in the preset time period ΔT is greater than the preset conduction time, it means that the heating element 11 If the actual heating time is greater than the preset heating time, there is a risk of overheating of the heating element 11, and the control unit 12 controls the switch unit 121 to turn off.

In a specific embodiment, the control unit 12 detects the accumulated conduction time t in real time during the heating process. For example, during the heating process of time t1, the control unit 12 judges whether t1 is within ΔT, and if so, further judges whether t1 is greater than Preset on-time, if no, there is no risk of overheating, if yes, there is a risk of overheating. Further, during the heating process at time t2, the control unit 12 judges whether t1+t2 is within ΔT, if so, further judges whether t1+t2 is greater than the preset conduction time, if not, there is no risk of overheating, and if so, There is a risk of overheating. Until it is determined that the accumulated conduction time is greater than the preset conduction time, it is determined that there is a risk of overheating, and at this time, the heating of the heating element 11 is stopped.

Referring to FIG. 4, in one embodiment, the control unit 12 detects the first conduction time of the switch unit 121; in response to the first conduction time being not greater than the preset time period ΔT, and in response to the first conduction time being not greater than time threshold, there is no risk of overheating of the heating element 11. That is, within the preset time period ΔT, if the first conduction time of the switch unit 121 is not greater than the preset conduction time threshold, it means that the actual heating time of the heating element 11 is less than the preset heating time, and the heating element 11 does not exist. Risk of overheating. In this embodiment, the first conduction time may be one switch conduction time, and the first conduction time may also include multiple switch conduction times, as long as it is not greater than the preset time period ΔT.

In one embodiment, the control unit 12 detects the second conduction time of the switch unit 121; in response to the time sum of the second conduction time and the first conduction time being not greater than the preset time period ΔT, and in response to the second If the time sum of the conduction time and the first conduction time is not greater than the time threshold, then there is no risk of overheating of the heating element 11 . That is, if the time sum of the first conduction time and the second conduction time of the switch unit 121 is not greater than the preset time period ΔT, and the time sum of the first conduction time and the second conduction time is not greater than the preset conduction time If the on-time threshold is lower, it means that the actual heating time of the heating element 11 is less than the preset heating time, and there is no risk of overheating of the heating element 11. In this embodiment, the first on-time and the second on-time may be one or more times respectively, as long as the sum of the times is not greater than the preset time period ΔT.

In one embodiment, in response to the time sum of the second conduction time and the first conduction time being not greater than the preset time period ΔT, and in response to the time sum of the second conduction time and the first conduction time being greater than time threshold, the heating element 11 is at risk of overheating. It can be understood that if the time sum of the first conduction time and the second conduction time of the switch unit 121 is not greater than the preset time period ΔT, the time sum of the first conduction time and the second conduction time is greater than the preset conduction time. The time threshold means that the actual heating time of the heating element 11 is greater than the preset heating time, the heating element 11 has a risk of overheating, and the control unit 12 controls the switch unit 121 to turn off.

In the heating component provided by this application, the control unit 12 compares the actual conduction time of the switch unit 121 within the preset time period ΔT with the preset conduction time threshold of the switch unit 121 within the preset time period ΔT, Determine whether the heating element 11 has an overheating risk, and in response to the heating element 11 having an overheating risk, the control unit 12 controls the switching unit 121 to be turned on and off, thereby ensuring the heating effect of the heating element 11 and preventing the heating element 11 from overheating and damaging the heating element 11 and other components.

Referring to FIG. 5 , it is a schematic flowchart of the first embodiment of the method for controlling the heating assembly of the present application, which specifically includes:

Step S11: detecting the heating time of the heating element of the heating assembly, and judging whether the heating element has a risk of overheating based on the heating time.

Specifically, the control unit controls the path between the battery assembly connected to the heating assembly and the heating element, so that the heating element performs a heating operation, and detects the heating time of the heating element, wherein the control unit judges whether the heating element is overheated based on the heating time risk. It can be understood that the control unit counts the heating time of the heating element within a certain period of time, and if the heating time of the heating element is greater than the preset heating time, it is determined that the heating element has a risk of overheating.

Step S12: Stop heating the heating element in response to the overheating risk of the heating element.

Specifically, if it is determined that the heating element has a risk of overheating, the control unit controls the passage between the battery assembly and the heating element to be disconnected, and the heating element is stopped from being heated.

Referring to FIG. 6 , it is a schematic flowchart of another embodiment of the control method of the heating component of the present application, the detection of the heating time of the heating element of the heating component, and judging whether the heating element has an overheating risk based on the heating time, The method includes detecting the accumulated conduction time of a switch unit connected to the heating element within a preset period of time, and judging whether the heating element has an overheating risk based on the accumulated conduction time. That is, within the preset time period, the switch unit has multiple on-times and off-times, the control unit accumulates the multiple on-times of the switch unit within the preset time period, and the preset on-time in the preset time period For comparison, if the control unit detects that the cumulative conduction time of the switch unit within the preset time period is greater than the preset conduction time, it means that the actual heating time of the heating element is greater than the preset heating time, and there is a risk of overheating of the heating element.

In a specific embodiment, the stopping heating of the heating element in response to the risk of overheating of the heating element includes responding to the fact that the cumulative on-time is greater than a time threshold, the risk of overheating of the heating element exists. That is, when the accumulated conduction time of the switch unit within the preset time period is greater than the preset conduction time threshold, it is determined that the heating element has a risk of overheating, and the control unit controls the switch unit to be turned off.

In the heating control method of the heating component provided by the present application, the control unit detects the actual conduction time of the switch unit within the preset time period and compares it with the preset conduction time threshold of the switch unit within the preset time period to determine whether the heating element Whether there is a risk of overheating, in response to the risk of overheating of the heating element, the control unit controls the on and off of the switch unit, so as to ensure the heating effect of the heating element and prevent the overheating of the heating element from damaging the heating element and other components.

Please refer to FIG. 7 , which is a schematic structural diagram of an electronic atomization device according to an embodiment of the present application. The electronic atomization device includes a heating component 10 and a battery component 20 , wherein the heating component 10 can be inserted into a solid substance to be atomized. Or surround the atomized substrate; the battery assembly 20 is electrically connected to the heating assembly 10 to supply power to the heating assembly 10, so that the heating assembly 10 heats and atomizes the substrate to be atomized.

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 conversion 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 heating assembly, comprising:

Heating element;

a control unit, controlling the passage between the battery assembly connected to the heating assembly and the heating element, so that the heating element performs a heating operation, and detecting the heating time of the heating element, wherein the control unit is based on The heating time determines whether the heating element has an overheating risk, and disconnects the path between the battery assembly and the heating element in response to the heating element having an overheating risk.
The heating assembly according to claim 1, wherein the heating assembly further comprises:

a switch unit disposed on the path between the heating element and the battery assembly;

Wherein, the control unit is connected to the switch unit and controls the conduction of the switch unit to heat the heating element; the control unit further detects the conduction time of the switch unit, and based on the conduction Time judges whether the heating element has an overheating risk, and in response to the heating element having an overheating risk, the control unit controls the switch unit to turn off.
The heating assembly according to claim 2, wherein the control unit detects the accumulated conduction time of the switch unit within a preset time period, and judges whether there is an overheating risk of the heating element based on the accumulated conduction time.
The heating assembly of claim 3, wherein:

In response to the accumulated on-time being greater than a time threshold, the control unit determines that the heating element is at risk of overheating.
The heating assembly according to claim 4, wherein the control unit detects the first conduction time of the switch unit; in response to the first conduction time being not greater than the preset time period, and in response to the If the first conduction time is not greater than the time threshold, then there is no risk of overheating of the heating element.
The heating assembly according to claim 5, wherein the control unit detects the second conduction time of the switch unit; in response to the time sum of the second conduction time and the first conduction time being not greater than The preset time period, and in response to the time sum of the second on-time and the first on-time being not greater than the time threshold, there is no risk of overheating of the heating element.
The heating assembly according to claim 6, wherein the time sum of the second conduction time and the first conduction time is not greater than the preset time period, and in response to the second conduction If the time sum of the time and the first conduction time is greater than the time threshold, the heating element has a risk of overheating.
An electronic atomization device, including:

A heating assembly, the heating assembly comprising the heating assembly described in any one of claims 1-7;

The battery assembly is connected to the heating assembly and is used to provide a power supply voltage for the heating assembly to heat the heating element of the heating assembly.
A method for controlling a heating component, comprising:

Detecting the heating time of the heating element of the heating assembly, and judging whether the heating element has an overheating risk based on the heating time;

In response to the heating element being at risk of overheating, heating the heating element is stopped.
The control method according to claim 9, wherein the detecting the heating time of the heating element of the heating assembly, and judging whether the heating element has an overheating risk based on the heating time, comprises:

Detecting the cumulative conduction time of the switch unit connected to the heating element within a preset time period, and judging whether the heating element has an overheating risk based on the cumulative conduction time;

Said stopping heating of said heating element in response to said heating element presenting a risk of overheating comprises:

In response to the accumulated on-time being greater than a time threshold, the heating element is at risk of overheating.