Electronic atomization apparatus

Abstract

Provided in the present application is an electronic atomization apparatus, comprising a liquid storage assembly, an atomization module, a driving mechanism and a first induction unit, wherein the liquid storage assembly comprises a chamber and a piston assembly, which are fitted to form a liquid storage cavity; the atomization module is in communication with the liquid storage cavity and is used for atomizing an atomization medium from the liquid storage cavity to form aerosol; the driving mechanism comprises a push rod, which is used for pushing the piston assembly to slide in the chamber, such that a liquid is provided to the atomization module; the first induction unit is arranged on a first end surface of the piston assembly that is close to the push rod, and / or the first induction unit is arranged on a first end of the push rod, wherein the first induction unit is used for sending out a first induction signal when the first end of the push rod abuts against the piston assembly. The electronic atomization apparatus of the present application can solve the problem of it being impossible for an electronic atomization apparatus to position a piston assembly after cartridge replacement or liquid re-injection is solved.

Description

Electronic atomization device

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority based on Chinese patent application 202322534814.0 filed on September 15, 2023, and all its contents are incorporated herein by reference.

Technical field

[0003] The present application relates to the field of atomization technology, and in particular to an electronic atomization device. [Background Technology]

[0004] There is an existing electronic atomization device, which includes a piston-type atomization cartridge. Its working principle is that a driving mechanism pushes a piston assembly in the piston-type atomization cartridge to move to push the atomization medium, like a syringe.

[0005] However, there is a problem with this electronic atomization device. When the atomization cartridge is replaced or the atomization cartridge is refilled, the host does not know the position of the piston assembly, causing the electronic atomization device to fail to work properly. Therefore, for this type of electronic atomization device, accurately locating the position of the piston assembly is an urgent problem to be solved.

[0006] [Summary of the invention]

[0007] The present application provides an electronic atomization device, which can solve the problem that the electronic atomization device cannot locate the piston assembly after changing the cartridge or refilling the liquid.

[0008] To solve the above problems, a technical solution provided in the present application is: to provide an electronic atomization device, comprising: a liquid storage assembly, comprising a tank body and a piston assembly, and the tank body and the piston assembly cooperate to form a liquid storage chamber; an atomization module, connected to the liquid storage chamber, for atomizing the atomization medium from the liquid storage chamber to form an aerosol; a driving mechanism, comprising a push rod, the push rod being used to push the piston assembly to slide within the tank body to supply liquid to the atomization module; a first sensing unit, arranged at a first end face of the piston assembly close to the push rod, and / or the first sensing unit is arranged at a first end of the push rod, the first end being an end of the push rod close to the piston assembly; wherein the first sensing unit is used to emit a first sensing signal when the first end of the push rod and the piston assembly are in abutment.

[0009] In one embodiment, the electronic atomization device further includes: a second sensing unit, which is disposed at a fixed position in the push rod or the electronic atomization device, and the second sensing unit is configured to emit a second sensing signal when the push rod returns to a preset position.

[0010] In one embodiment, the electronic atomization device further includes a sensing block, the second sensing unit or one of the sensing blocks is fixedly connected to the push rod, and the other is arranged at a fixed position in the electronic atomization device, and when the second sensing unit is in abutment with the sensing block, the second sensing unit emits the second sensing signal.

[0011] In one embodiment, the electronic atomization device also includes a control unit, which is electrically connected to the first sensing unit and the driving mechanism; when the driving mechanism is in contact with the piston assembly, the first sensing unit determines the position of the piston assembly and sends the first sensing signal to the control unit; and when the driving mechanism is in contact with the piston assembly, the control unit can control the driving mechanism to drive the piston assembly to move toward the liquid outlet channel of the liquid storage chamber, so as to drive the liquid storage chamber to supply liquid to the atomization module.

[0012] In one embodiment, the first sensing unit is disposed on the push rod; or, a portion of the first sensing unit is disposed on the piston assembly, and another portion is disposed on the push rod.

[0013] In one embodiment, the driving mechanism further includes: a motor assembly; the push rod is connected to the motor assembly, and the motor assembly is used to drive the push rod to move along a first direction, thereby pushing the piston assembly to slide within the warehouse body.

[0014] In one embodiment, the liquid storage assembly, the push rod and the motor assembly are arranged along the first direction, and the push rod is located between the liquid storage assembly and the motor assembly; the push rod also includes a second end opposite to the first end, the first end having a first accommodating groove, and the first sensing unit is arranged in the first accommodating groove; wherein, the first sensing unit is a pressure sensor, and the control unit determines the position of the piston assembly based on the abutment of the pressure sensor with the piston assembly; the second end has a second accommodating groove, the second accommodating groove is used to accommodate the drive shaft of the motor assembly, and the second accommodating groove is threadedly connected to the drive shaft.

[0015] In one embodiment, the driving mechanism further includes: a motor assembly, including a main body and a driving shaft connected to the main body, the main body being used to drive the driving shaft to rotate; the push rod is threadedly connected to the driving shaft, and the motor assembly is used to drive the push rod to move in a first direction, thereby pushing the piston assembly to slide within the warehouse body; wherein, one of the sensing block and the second sensing unit is provided at one end of the main body close to the push rod, and the other of the sensing block and the second sensing unit is provided at one end of the push rod close to the main body.

[0016] In one embodiment, one end of the tank body has a liquid outlet, and the other end is an open end;

[0017] The piston assembly covers the open end of the warehouse body to cooperate with the warehouse body to form the liquid storage chamber.

[0018] In one embodiment, the piston assembly includes: a sealing member cooperating with the chamber body to form the liquid storage chamber; and a mounting seat disposed at an end of the sealing member facing away from the liquid storage chamber and connected to the sealing member.

[0019] Different from the prior art, the electronic atomization device provided by the present application includes a liquid storage component, an atomization module, a driving mechanism and a first sensing unit, wherein the liquid storage component includes a tank body and a piston assembly, and the tank body and the piston assembly cooperate to form a liquid storage chamber; the atomization module is connected to the liquid storage chamber and is used to atomize the atomization medium from the liquid storage chamber to form an aerosol; the driving mechanism includes a push rod, which is used to push the piston assembly to slide in the tank body to supply liquid to the atomization module; the first sensing unit is provided on the first end face of the piston assembly close to the push rod, and / or the first sensing unit is provided on the first end of the push rod, wherein the first sensing unit is used to send a first sensing signal when the first end of the push rod and the piston assembly are in contact. Specifically, the electronic atomization device provided by the present application is provided with a first sensing unit for detecting the position of the piston assembly on the first end face of the liquid storage component close to the push rod, and / or the first end of the push rod, so that after the electronic atomization device is replaced or refilled, the first sensing unit is repositioned to the position of the piston assembly through the first sensing unit, so that the driving mechanism can normally push the piston assembly through the push rod to supply liquid to the atomization module.

Brief Description of the Drawings

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present application. Those skilled in the art can also derive other drawings based on these drawings without inventive work, among which:

[0021] FIG1 is a schematic structural diagram of an embodiment of an electronic atomization device provided by the present application;

[0022] FIG2 is a schematic structural diagram of an embodiment of the electronic atomization device provided by the present application with a portion of the housing removed;

[0023] FIG3 is a cross-sectional view of the structure of the liquid storage assembly, the atomization module, the drive mechanism, the first sensing unit, and the second sensing unit in the electronic atomization device provided by the present application in one state;

[0024] FIG4 is a cross-sectional view of the liquid storage assembly, atomization module, drive mechanism, first sensing unit, and second sensing unit in the electronic atomization device provided by the present application in another state;

[0025] FIG5 is a structural cross-sectional view of an embodiment of a bin body provided by the present application;

[0026] FIG6 is a schematic structural diagram of an embodiment of a driving mechanism, a second sensing unit, and a sensing block provided by the present application;

[0027] FIG7 is a flow chart of an embodiment of a cartridge replacement method for an electronic atomization device provided in the present application. [Specific implementation method]

[0028] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0029] The terms "first," "second," and "third" in this application are used only for descriptive purposes and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first," "second," or "third" may explicitly or implicitly include at least one of such features. In the description of this application, "multiple" means at least two, for example, two, three, etc., unless otherwise specifically defined. All directional indications in the embodiments of this application (such as up, down, left, right, front, back...) are only used to explain the relative positional relationship, movement, etc. between the components under a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications also change accordingly. In addition, the terms "including" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units that are not listed, or may optionally include other steps or units that are inherent to these processes, methods, products, or devices.

[0030] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0031] In related art, electronic atomizer devices that include piston-type atomizer cartridges require the push rod to be returned to its initial position before reloading or refilling the cartridge. However, after the reloading or refilling operation is completed, the position of the piston assembly changes. The host does not know the position of the piston assembly and cannot properly drive the push rod to push the piston assembly, causing the electronic atomizer device to malfunction.

[0032] The present application is described in detail below with reference to the accompanying drawings and embodiments.

[0033] Refer to Figures 1 to 6, Figure 1 is a structural schematic diagram of an embodiment of the electronic atomization device provided in the present application; Figure 2 is a structural schematic diagram of an embodiment of the electronic atomization device provided in the present application with part of the shell removed; Figure 3 is a structural cross-sectional view of the liquid storage component, atomization module, drive mechanism, first sensing unit and second sensing unit in the electronic atomization device provided in the present application in one state; Figure 4 is a cross-sectional view of the liquid storage component, atomization module, drive mechanism, first sensing unit and second sensing unit in the electronic atomization device provided in the present application in another state; Figure 5 is a structural cross-sectional view of an embodiment of the warehouse body provided in the present application; Figure 6 is a structural schematic diagram of an embodiment of the drive mechanism, second sensing unit and sensing block provided in the present application.

[0034] To solve the above problems, an embodiment of the present application provides an electronic atomization device 100 , which includes a liquid storage assembly 10 , an atomization module 20 , a driving mechanism 30 and a first sensing unit 40 .

[0035] 3 and 6 , the liquid storage assembly 10 includes a chamber 11 and a piston assembly 12, which cooperate to form a liquid storage chamber A. Liquid storage chamber A is used to store atomized media. The atomized media includes, but is not limited to, liquid medicine, nutrient solution, beauty serum, essence, essence lotion, disinfectant, insecticide, and the like, enabling the electronic atomization device 100 using the atomized media to be applied in various fields, such as the medical field, the beauty field, and the agricultural field.

[0036] In one embodiment, the tank body 11 has a liquid outlet A1 at one end and an open end at the other end. The piston assembly 12 seals the open end of the tank body 11 to form a liquid storage chamber A with the piston assembly 12, and the liquid outlet A1 serves as a liquid outlet passage for the liquid storage chamber A. Specifically, the tank body 11 has a receiving chamber B, and the liquid outlet A1 is connected to the receiving chamber B. The end of the receiving chamber B facing away from the liquid outlet A1 is an open end. The piston assembly 12 seals the open end of the receiving chamber B and is slidably disposed within the receiving chamber B. The volume of the liquid storage chamber A is related to the position of the piston assembly 12 within the receiving chamber B.

[0037] In one embodiment, the piston assembly 12 includes a seal 121 and a mounting seat 122. The seal 121 cooperates with the accommodating chamber B to form a liquid storage chamber A. The mounting seat 122 is disposed at the end of the seal 121 facing away from the liquid storage chamber A and is connected to the seal 121. The end surface of the mounting seat 122 facing away from the seal 121 is a first end surface. In this embodiment, the first end surface is a flat surface, which allows for arbitrary adaptation to the drive mechanism 30, thereby improving the versatility of the liquid storage assembly 10. Furthermore, this design allows the liquid storage assembly 10 and the drive mechanism 30 to be disassembled, facilitating the individual maintenance and replacement of each component, thereby reducing user costs.

[0038] The material of the sealing member 121 may be silicone or rubber. By providing the sealing member 121 , the sealing effect can be improved to prevent the atomized medium in the liquid storage chamber A from leaking.

[0039] In one embodiment, the liquid storage assembly 10 and the atomization module 20 are detachably connected, facilitating individual maintenance and replacement of each component, thereby reducing user costs. Furthermore, the liquid storage assembly 10 is detachably connected to the drive mechanism 30 and the atomization module 20. Once the atomized medium in the liquid storage assembly 10 is consumed, the liquid storage assembly 10 can be replaced with a new one, allowing the other components of the electronic atomization device 100 to be reused, further reducing user costs.

[0040] In one embodiment, the drive mechanism 30 is configured to abut against the piston assembly 12. When the drive mechanism 30 abuts against the piston assembly 12, the drive mechanism 30 can drive the piston assembly 12 toward the liquid outlet A1, thereby driving the liquid storage chamber A to supply liquid to the atomization module 20. That is, in this embodiment, the drive mechanism 30 can only push the piston assembly 12 toward the liquid outlet A1, but cannot pull back the piston assembly 12 to move the piston assembly 12 from the liquid outlet A1 toward the open end.

[0041] Please refer to FIG. 2 and FIG. 3 , in which the atomization module 20 is communicated with the liquid storage chamber A and is used to atomize the atomization medium from the liquid storage chamber A to form an aerosol.

[0042] In one embodiment, the electronic atomization device 100 further includes a host 50 , which is electrically connected to the driving mechanism 30 and the first sensing unit 40 , and is configured to receive a first sensing signal sent by the first sensing unit 40 and control the driving mechanism 30 to perform corresponding operations based on the first sensing signal.

[0043] Referring to FIG. 2 , in one embodiment, the electronic atomization device 100 may further include an air supply unit 60 for providing high-pressure gas to the atomization module 20. The high-pressure gas can shear the atomized medium entering the atomization module 20 into atomized particles of a suitable particle size, i.e., aerosol, and carry the aerosol to be ejected from the spray port of the atomization module 20. The air supply unit 60 may be an air pump.

[0044] In one embodiment, the atomizing module 20 may further include an atomizing element (not shown) for atomizing the atomizing medium to form an aerosol. The atomizing element may be an ultrasonic atomizing element, an electrically heated atomizing element, a two-phase flow atomizing nozzle, or the like in the prior art.

[0045] Referring to Figure 3 , in one embodiment, the atomization module 20 includes a nozzle holder 21 and a nozzle 22. The nozzle 22 is a two-phase flow atomizing nozzle that utilizes the interaction of high-speed airflow and liquid to produce an aerosol. The nozzle holder 21 includes a receiving chamber C, a liquid inlet channel 211, and an air inlet channel 212. The liquid storage chamber A is connected to the nozzle 22 via the liquid inlet channel 211, and the air supply unit 60 is connected to the nozzle 22 via the air inlet channel 212.

[0046] Specifically, in the embodiment of the present application, the liquid storage component 10, the atomization module 20, the driving mechanism 30, the first sensing unit 40 and the main unit 50 are all arranged in the shell 101, and the shell 101 has a clearance hole (not marked in the figure), the nozzle 22 is arranged in the receiving cavity C near the clearance hole, and the spray port of the nozzle 22 is exposed through the clearance hole, the air inlet channel 212 is used to provide high-pressure gas to the nozzle 22, and the liquid inlet channel 211 and the liquid inlet channel respectively provide the nozzle 22 with an atomizing medium and high-pressure gas to generate an aerosol in the nozzle 22, and discharge it from the mist outlet of the nozzle 22 for use by the user.

[0047] Please continue to refer to Figure 3. In one embodiment, the atomization module 20 also includes a mechanical valve 23. The mechanical valve 23 is arranged between the liquid storage chamber A and the fluid path (liquid inlet channel 211) of the nozzle 22, and is used to connect or close the fluid path between the liquid storage chamber A and the nozzle 22. For example, when the electronic atomization device 100 is in an atomizing state, the mechanical valve 23 is used to conduct the fluid path between the liquid storage chamber A and the nozzle 22 to allow the liquid storage chamber A to supply liquid to the nozzle 22 for atomization to generate an aerosol. Alternatively, when the electronic atomization device 100 is in a non-atomizing state, the mechanical valve 23 is used to cut off the fluid path between the liquid storage chamber A and the nozzle 22 to prohibit the liquid storage chamber A from supplying liquid to the nozzle 22, thereby avoiding the occurrence of problems such as leakage and liquid spraying.

[0048] Please continue to refer to FIG. 3 , in which the driving mechanism 30 includes a push rod 31 , which is used to push the piston assembly 12 to slide in the chamber body 11 to supply liquid to the atomization module 20 .

[0049] In one embodiment, the driving mechanism 30 includes a motor assembly 32 and a push rod 31, wherein the motor assembly 32 is electrically connected to the main unit 50, and the push rod 31 is connected to the motor assembly 32. The motor assembly 32 is used to drive the push rod 31 to move along the first direction X, so that when the first end of the push rod 31 abuts against the first end face of the piston assembly 12, it can continue to push the piston assembly 12 to slide in the warehouse body 11 to supply liquid to the atomization module 20.

[0050] The motor assembly 32 may be disposed on one side of the push rod 31 (not shown) and control the push rod 31 to move along the first direction X via a gear train. Alternatively, the motor assembly 32 may be disposed at one end of the push rod 31 (see FIG. 3 ) and threadedly connected to the push rod 31 via a drive shaft 321 of the motor assembly 32 , thereby driving the push rod 31 to move along the first direction X.

[0051] 3 , in one embodiment, the liquid storage assembly 10, the push rod 31, and the motor assembly 32 are arranged along a first direction X, with the push rod 31 located between the liquid storage assembly 10 and the motor assembly 32. The push rod 31 includes a first end and a second end opposite each other. The first end of the push rod 31 is adjacent to the piston assembly 12, and the second end of the push rod 31 has a second receiving groove D2. The second receiving groove D2 is used to receive a drive shaft 321 of the motor assembly 32, and the second receiving groove D2 is threadedly connected to the drive shaft 321. Specifically, since the push rod 31 is threadedly connected to the drive shaft 321 of the motor assembly 32, when the motor assembly 32 is working, the drive shaft 321 of the motor assembly 32 rotates, thereby driving the push rod 31 to move along the first direction X toward the piston assembly 12 or away from the piston assembly 12, and when the first end of the push rod 31 abuts against the piston assembly 12 and continues to move toward the piston assembly 12, the piston assembly 12 is pushed by the push rod 31 to slide toward the liquid outlet A1 in the warehouse body 11, so that the liquid storage chamber A supplies liquid to the atomization module 20.

[0052] Please continue to refer to Figure 3. In one embodiment, the motor assembly 32 includes a main body 322 and a drive shaft 321 connected to the main body 322. The main body 322 is used to drive the drive shaft 321 to rotate, thereby driving the push rod 31 assembly to move along the first direction X toward the piston assembly 12 or away from the piston assembly 12.

[0053] Please refer to Figure 2, in which the host 50 includes a control unit 51 and an energy storage unit 52. The energy storage unit 52 provides power to various electrical components of the electronic atomization device 100, and the control unit 51 is used to control the operation of corresponding components in the electronic atomization device 100.

[0054] In some embodiments, the first sensing unit 40 is disposed on the first end surface of the piston assembly 12 close to the push rod 31, and / or the first sensing unit 40 is disposed at the first end of the push rod 31; wherein, the first sensing unit 40 is used to emit a first sensing signal when the first end of the push rod 31 and the piston assembly 12 are in abutment with each other.

[0055] Specifically, the control unit 51 is electrically connected to the first sensing unit 40 and the driving mechanism 30 (the main body 322 in the embodiment of the present application), and the control unit 51 determines the position of the piston assembly 12 based on the first sensing signal sent by the first sensing unit 40, and controls the driving mechanism 30 to perform corresponding operations based on the position of the piston assembly 12.

[0056] For example, when the first sensing unit 40 does not send the first sensing signal, the electronic atomization device 100 may have replaced the liquid storage component 10. Since the liquid storage component 10 is removed from the electronic atomization device 100, the first sensing unit 40 cannot detect the position of the piston component 12. The control unit 51 controls the push rod 31 in the drive mechanism 30 to retract to a preset position to avoid the subsequent filling of a new liquid storage component 10 being affected by the position of the push rod 31.

[0057] When a new liquid storage component 10 is loaded into the electronic atomization device 100, since the push rod 31 is in the above-mentioned preset position, it does not abut against the piston assembly 12, resulting in the problem that the nozzle 22 assembly cannot be supplied with liquid normally or accurately during atomization. Therefore, after replacing the liquid storage component 10 and before atomization, the control unit 51 controls the push rod 31 in the drive mechanism 30 to abut against the piston assembly 12, and detects the abutment signal through the first sensing unit 40 and sends a first sensing signal to the control unit 51, thereby determining the position of the piston assembly 12 for subsequent atomization work, which solves the problem of changing cartridges midway.

[0058] For another example, when the liquid storage component 10 needs to be refilled, the control unit 51 controls the push rod 31 in the drive mechanism 30 to retract to a preset position to avoid the subsequent injection being affected by the position of the push rod 31 and being unable to inject liquid. After refilling and before atomization, the control unit 51 controls the push rod 31 in the drive mechanism 30 to abut against the piston component 12, and detects the abutment signal through the first sensing unit 40 and sends a first sensing signal to the control unit 51, thereby determining the position of the piston component 12 to facilitate subsequent atomization work, which solves the problem of mid-injection.

[0059] After the control unit 51 determines the position of the piston assembly 12, if the electronic atomization device 100 is not in the atomization state, the control unit 51 can control the motor assembly 32 to stop working, thereby maintaining the push rod 31 in the current position and waiting for a subsequent atomization signal. If the electronic atomization device 100 is in the atomization state, the control unit 51 can control the motor assembly 32 to continue working, thereby causing the push rod 31 to push the piston assembly 12 toward the liquid outlet A1, thereby allowing the liquid storage chamber A to supply liquid to the atomization module 20.

[0060] It is understandable that, since the volume of the liquid storage chamber A is different from the previous volume after the cartridge is replaced or the liquid is injected, the position of the piston assembly 12 is uncertain. In the embodiment of the present application, the push rod 31 is retracted to the preset position before the cartridge is replaced or the liquid is injected to prevent the push rod 31 from affecting the cartridge replacement and liquid injection. After the cartridge is replaced and the liquid is injected, the push rod 31 is controlled to abut against the piston assembly 12, and the position of the new piston assembly 12 is determined by the first sensing unit 40, so that the driving mechanism 30 can normally push the piston assembly 12 through the push rod 31 to supply liquid to the atomization module 20, thereby solving the problem that the electronic atomization device 100 cannot work normally after the cartridge is replaced and the liquid is injected.

[0061] In some embodiments, the first sensing unit 40 may be disposed at the first end of the push rod 31 . Alternatively, the first sensing unit 40 may be disposed at the first end surface of the piston assembly 12 . Alternatively, a portion of the first sensing unit 40 may be disposed on the piston assembly 12 , and another portion may be disposed on the push rod 31 .

[0062] Specifically, the position of the first sensing unit 40 is related to the type of the first sensing unit 40 .

[0063] For example, the first sensing unit 40 can be a pressure sensor, which is arranged at the first end of the push rod 31 or the first end surface of the piston assembly 12. When the first end of the push rod 31 abuts against the first end surface of the piston assembly 12, the first sensing unit 40 outputs a first sensing signal to the control unit 51 to indicate that the push rod 31 abuts against the piston assembly 12 and determines the position of the piston assembly 12.

[0064] For another example, the first sensing unit 40 may be a distance sensor, which is arranged at the first end of the push rod 31. When the distance sensor detects that the distance between the push rod 31 and the piston assembly 12 is 0 or is within a preset distance range, it outputs a first sensing signal to the control unit 51 to indicate that the push rod 31 is in contact with the piston assembly 12, thereby determining the position of the piston assembly 12.

[0065] For another example, the first sensing unit 40 may include a first wire, a second wire and a third wire, one end of the first wire and one end of the second wire are respectively connected to the control unit 51, the other end of the first wire and the other end of the second wire are located at the first end of the push rod 31 and are exposed and spaced apart, and the third wire is located at the first end face of the piston assembly 12. When the first end of the push rod 31 abuts the first end face of the piston assembly 12, the first wire and the second wire are connected in series through the third wire to form a complete signal path, so that when the push rod 31 abuts the piston assembly 12, the control unit 51 receives a conductive signal (representing the first sensing signal) to indicate that the push rod 31 abuts the piston assembly 12 and determines the position of the piston assembly 12.

[0066] 3 and 6 , in one embodiment, the first end of the push rod 31 has a first receiving groove D1, and the first sensing unit 40 is disposed within the first receiving groove D1. In this embodiment, the first sensing unit 40 may be a pressure sensor. When the first end of the push rod 31 abuts the piston assembly 12, the pressure sensor located at the first end of the push rod 31 also abuts the piston assembly 12, thereby transmitting a first sensing signal to the control unit 51. Based on this signal, the control unit 51 determines the position of the piston assembly 12, thereby controlling the drive mechanism 30 to perform the corresponding operation.

[0067] In one embodiment, the electronic atomization device 100 further includes a second sensing unit 70, which is electrically connected to the control unit 51; the second sensing unit 70 is used to detect whether the push rod 31 has returned to a preset position; the control unit 51 controls the driving mechanism 30 to perform corresponding operations based on the push rod 31 returning to the preset position.

[0068] Specifically, in the embodiment of the present application, the preset position is a position where the push rod 31 does not affect the replacement of the cartridge and the refilling of the liquid, and when the control unit 51 detects that the push rod 31 has returned to the preset position based on the second sensing unit 70, the control unit 51 controls the motor assembly 32 (including the stepping motor) to stop working. In addition, since the installation position of the liquid storage assembly 10 in the electronic atomization device 100 is fixed, the distance between the push rod 31 and the top wall of the liquid storage chamber A can also be determined. Therefore, through this setting, the control unit 51 knows the distance between the push rod 31 and the top wall of the liquid storage chamber A and the reduction ratio of the motor, so that the distance that the push rod 31 assembly pushes the piston assembly 12 to reach the top wall of the liquid storage chamber A can be calculated. Otherwise, in order to prevent the piston assembly 12 from hitting the top wall of the liquid storage chamber A, an additional sensing unit must be added, resulting in increased costs.

[0069] The type of the second sensing unit 70 can be the same as or different from the type of the first sensing unit 40 , and can be specifically designed according to actual needs, as long as it can detect whether the push rod 31 has returned to the preset position.

[0070] Among them, the second sensing unit 70 can be set at a fixed position in the push rod 31 or the electronic atomization device 100. The second sensing unit 70 is used to send a second sensing signal to the control unit 51 when the push rod 31 returns to the preset position. The control unit 51 determines that the push rod 31 returns to the preset position based on the second sensing signal.

[0071] In one embodiment, the electronic atomization device 100 further includes a sensing block 80. One of the second sensing unit 70 or the sensing block 80 is fixedly connected to the push rod 31 to move synchronously with the push rod 31. The other is disposed at a fixed position in the electronic atomization device 100 and is configured to abut against the second sensing unit 70 when the push rod 31 returns to a preset position, thereby sending a second sensing signal to the control unit 51. Specifically, the control unit 51 determines that the second sensing unit 70 and the sensing block 80 are in abutment based on the second sensing signal, thereby determining that the push rod 31 has returned to the preset position.

[0072] Specifically, in this embodiment, the second sensing unit 70 may be a pressure sensor, a distance sensor, or other sensor that requires cooperation with another object, and the sensing block 80 may be a protrusion, a bump, or other structure. As long as it can abut against the second sensing unit 70 when the push rod 31 moves to the preset position, causing the second sensing unit 70 to generate a second sensing signal, the control unit 51 determines that the push rod 31 has moved to the preset position through the cooperation between the second sensing unit 70 and the sensing block 80.

[0073] In some embodiments, the end of the main body 322 close to the push rod 31 is provided with a sensing block 80 and one of the second sensing units 70, and the end of the push rod 31 close to the main body 322 (i.e., the second end of the push rod 31) is provided with the other of the sensing block 80 and the second sensing unit 70.

[0074] As shown in Figure 6, a second sensing unit 70 is provided at one end of the main body 322 close to the push rod 31, and a sensing block 80 is provided at the second end of the push rod 31. When the second end of the push rod 31 moves to the bottom of the driving rod, the second sensing unit 70 abuts against the sensing block 80 and sends a second sensing signal. The control unit 51 determines that the push rod 31 retreats to the preset position based on the received second sensing signal.

[0075] In some embodiments, the sensing block 80 may be integrally formed with the push rod 31 , thereby simplifying the manufacturing process and improving the connection stability between the sensing block 80 and the push rod 31 .

[0076] Different from the prior art, the electronic atomization device 100 provided in the present application sets a first sensing unit 40 on the first end face of the piston assembly 12 and / or the first end of the push rod 31, so that after the electronic atomization device 100 changes the cartridge or the liquid storage chamber A is re-supplied with liquid, the position of the piston assembly 12 is repositioned through the first sensing unit 40, so that the driving mechanism 30 can normally push the piston assembly 12 through the push rod 31 to supply liquid to the atomization module 20, solving the problem that the electronic atomization device 100 cannot work normally after changing the cartridge and filling the liquid midway. Furthermore, by setting a second sensing unit 70, when the electronic atomization device 100 changes the cartridge or the liquid storage chamber A is re-supplied with liquid, the second sensing unit 70 detects whether the push rod 31 has returned to the preset position, so that the push rod 31 does not affect the cartridge changing and re-filling process. In addition, by determining that the push rod 31 is in a preset position and pre-storing the distance between the push rod 31 and the top wall of the liquid storage chamber A at the preset position, the control unit 51 knows the distance between the push rod 31 and the top wall of the liquid storage chamber A and the reduction ratio of the motor. In this way, the distance that the push rod 31 assembly pushes the piston assembly 12 to reach the top wall of the liquid storage chamber A can be calculated. Otherwise, in order to prevent the piston assembly 12 from hitting the top wall of the liquid storage chamber A, an induction unit must be added, which increases the cost.

[0077] See Figure 7, which is a flow chart of an embodiment of a cartridge replacement method for an electronic atomization device provided by the present application. The present application also provides a cartridge replacement method for an electronic atomization device 100, comprising:

[0078] S1: Pull out the liquid storage assembly 10.

[0079] Specifically, in this embodiment, the liquid storage assembly 10 is detachably connected to the driving mechanism 30 and the atomization module 20 , thereby facilitating replacement of the liquid storage assembly 10 .

[0080] S2: Based on the fact that the first sensing unit 40 cannot detect the position of the piston assembly 12 , the control unit 51 controls the motor assembly 32 to drive the push rod 31 to retreat.

[0081] Specifically, the control unit 51 controls the motor assembly 32 to drive the push rod 31 to retreat during the cartridge change, so that the push rod 31 does not affect the cartridge change and refilling process.

[0082] S3: The control unit 51 determines whether the push rod 31 returns to the preset position through the second sensing unit 70.

[0083] Specifically, the control unit 51 determines that the push rod 31 is in a preset position through the second sensing unit 70, and since the installation position of the liquid storage assembly 10 in the electronic atomization device 100 is fixed, the distance between the push rod 31 and the top wall of the liquid storage chamber A at the preset position can be pre-stored. The control unit 51 knows the distance between the push rod 31 and the top wall of the liquid storage chamber A and the reduction ratio of the motor, so that the distance that the push rod 31 assembly pushes the piston assembly 12 to reach the top wall of the liquid storage chamber A can be calculated. Otherwise, in order to prevent the piston assembly 12 from hitting the top wall of the liquid storage chamber A, an additional sensing unit must be added, resulting in increased costs.

[0084] S4: In response to the push rod 31 retreating to the preset position, the liquid storage assembly 10 is inserted.

[0085] S5 : In response to the insertion of the liquid storage assembly 10 , the control unit 51 controls the motor assembly 32 to drive the push rod 31 to move toward the piston assembly 12 .

[0086] Specifically, when a new liquid storage component 10 is loaded into the electronic atomization device 100, since the push rod 31 is in the above-mentioned preset position, it does not abut against the piston assembly 12, resulting in the problem that the nozzle 22 assembly cannot be supplied with liquid normally or accurately during atomization. Therefore, after replacing the liquid storage component 10 and before atomization, the control unit 51 controls the push rod 31 in the drive mechanism 30 to abut against the piston assembly 12, and detects the abutment signal through the first sensing unit 40, thereby determining the position of the piston assembly 12 for subsequent atomization work, which solves the problem of changing cartridges midway.

[0087] S6: In response to the first sensing unit 40 detecting that the push rod 31 is in contact with the piston assembly 12 , the control unit 51 controls the motor assembly 32 to perform corresponding operations.

[0088] Specifically, after the control unit 51 determines the position of the piston assembly 12, if the electronic atomization device 100 is not in the atomization state, the control unit 51 can control the motor assembly 32 to stop working, thereby maintaining the push rod 31 in the current position and waiting for a subsequent atomization signal. If the electronic atomization device 100 is in the atomization state, the control unit 51 can control the motor assembly 32 to continue working, thereby causing the push rod 31 to push the piston assembly 12 toward the liquid outlet A1, thereby allowing the liquid storage chamber A to supply liquid to the atomization module 20.

[0089] The above is only an implementation method of the present application and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the description and drawings of this application, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. An electronic atomization device, wherein: include: A liquid storage assembly, comprising a chamber body and a piston assembly, wherein the chamber body and the piston assembly cooperate to form a liquid storage chamber; an atomizing module, connected to the liquid storage chamber, and used for atomizing the atomizing medium in the liquid storage chamber to form an aerosol; The driving mechanism comprises a push rod, wherein the push rod is used to push the piston assembly to slide in the bin body; A first sensing unit is disposed on a first end surface of the piston assembly close to the push rod, and / or the first sensing unit is disposed on a first end of the push rod, the first end being an end of the push rod close to the piston assembly; Wherein, the first sensing unit is used to send out a first sensing signal when the first end of the push rod and the piston assembly are in abutment with each other.

2. The electronic atomization device according to claim 1, wherein: The electronic atomization device also includes: The second sensing unit is arranged at a fixed position in the push rod or the electronic atomization device, and the second sensing unit is used for sending a second sensing signal when the push rod returns to a preset position.

3. The electronic atomization device according to claim 2, wherein: The electronic atomization device also includes a sensing block. The second sensing unit or one of the sensing blocks is fixedly connected to the push rod, and the other is arranged at a fixed position in the electronic atomization device. When the second sensing unit is in abutment with the sensing block, the second sensing unit sends out the second sensing signal.

4. The electronic atomization device according to any one of claims 1 to 3, wherein: The electronic atomization device further includes a control unit, which is electrically connected to the first sensing unit and the driving mechanism; When the driving mechanism is in contact with the piston assembly, the first sensing unit determines the position of the piston assembly and sends the first sensing signal to the control unit; And when the driving mechanism is in contact with the piston assembly, the control unit can control the driving mechanism to drive the piston assembly to move toward the liquid outlet channel of the liquid storage chamber, so as to drive the liquid storage chamber to supply liquid to the atomization module.

5. The electronic atomization device according to any one of claims 1 to 3, wherein: The first sensing unit is disposed on the push rod; or, A portion of the first sensing unit is disposed on the piston assembly, and another portion is disposed on the push rod.

6. The electronic atomization device according to claim 5, wherein: The driving mechanism further comprises: Motor components; The push rod is connected to the motor assembly, and the motor assembly is used to drive the push rod to move along a first direction, thereby pushing the piston assembly to slide in the warehouse body.

7. The electronic atomization device according to claim 6, wherein: The liquid storage assembly, the push rod and the motor assembly are arranged along the first direction, and the push rod is located between the liquid storage assembly and the motor assembly; The push rod further includes a second end opposite to the first end, the first end having a first receiving groove, the first sensing unit being disposed in the first receiving groove; wherein the first sensing unit is a pressure sensor, and the control unit determines the position of the piston assembly based on the abutment of the pressure sensor with the piston assembly; The second end has a second accommodating groove, the second accommodating groove is used to accommodate the driving shaft of the motor assembly, and the second accommodating groove is threadedly connected to the driving shaft.

8. The electronic atomization device according to claim 3, wherein: The driving mechanism further comprises: The motor assembly comprises a main body and a driving shaft connected to the main body, wherein the main body is used to drive the driving shaft to rotate; The push rod is threadedly connected to the drive shaft, and the motor assembly is used to drive the push rod to move along a first direction, thereby pushing the piston assembly to slide in the warehouse body; The end of the main body close to the push rod is provided with one of the induction block and the second induction unit, and the end of the push rod close to the main body is provided with the induction block. block and another of the second sensing units.

9. The electronic atomization device according to claim 1, wherein: One end of the bin body has a liquid outlet, and the other end is an open end; The piston assembly covers the open end of the warehouse body to cooperate with the warehouse body to form the liquid storage chamber.

10. The electronic atomization device according to claim 1, wherein: The piston assembly comprises: A sealing member, cooperating with the chamber body to form the liquid storage chamber; The mounting seat is arranged at one end of the sealing member away from the liquid storage cavity and is connected to the sealing member.

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