Nozzle, atomizer and electronic atomization device

Abstract

The invention discloses a nozzle, an atomizer and an electronic atomization device. The nozzle comprises a spraying part, the spraying part is provided with an atomization cavity, an air inlet channel and a liquid inlet channel, and the air inlet channel and the liquid inlet channel communicate with the atomization cavity; gas entering the atomizing cavity from the gas inlet channel collides with an aerosol generating matrix entering the atomizing cavity from the liquid inlet channel and then is atomized to form aerosol; the atomizing cavity is provided with a mist outlet, so that aerosol flows out of the mist outlet; wherein at least part of the injection part is electrically conductive to serve as a heating body; the heating body is provided with a plurality of holes, and the holes are not communicated with the atomization cavity, the air inlet channel and the liquid inlet channel. At least one part of the spraying part serves as a heating body to atomize the aerosol generating substrate, viscosity reduction can be conducted on the aerosol generating substrate, and therefore the atomization efficiency is improved; meanwhile, the multiple holes are formed in the heating body so that the resistance of the heating body can be adjusted, and the heat energy utilization rate of the heating body can be increased.

Description

Technical Field

[0001] The present application relates to the field of atomization technology, and in particular to a nozzle, an atomizer and an electronic atomization device. Background Art

[0002] In the related art, an electronic atomization device is used to atomize an aerosol-generating matrix into an aerosol.

[0003] Nozzle atomization is a way to atomize the aerosol-generating matrix into an aerosol. However, the current atomization technology has a high heating temperature. On the one hand, the resistance wire is prone to carbon deposition, which affects the taste and the life of the atomization device, and the heating effect is limited. On the other hand, high temperature will also cause the cracking of flavors and fragrances, resulting in low taste restoration. In addition, side reactions are prone to occur, resulting in the production of harmful substances. Summary of the invention

[0004] In view of this, the present application provides a nozzle, an atomizer and an electronic atomization device to solve the problems in the prior art that the resistance wire is prone to carbon deposition, thereby affecting the taste and the life of the atomization device, the heating effect is limited, and harmful substances are easily generated.

[0005] In order to solve the above technical problems, the first technical solution provided in the present application is: a nozzle is provided, including an injection part, the injection part has an atomization chamber and an air inlet channel and a liquid inlet channel respectively connected to the atomization chamber; the gas entering the atomization chamber from the air inlet channel collides with the aerosol generating matrix entering the atomization chamber from the liquid inlet channel and is atomized to form an aerosol; the atomization chamber has a mist outlet, so that the aerosol flows out from the mist outlet; wherein, at least part of the injection part is conductive so as to be used as a heating body; the heating body has a plurality of openings, and the plurality of openings are not connected to the atomization chamber, the air inlet channel and the liquid inlet channel.

[0006] Optionally, the injection portion includes a first substrate and a second substrate which are stacked, and the first substrate and the second substrate cooperate to form the atomization chamber, the air inlet channel and the liquid inlet channel; wherein the first substrate is conductive to be used as the heating body; or the second substrate is conductive to be used as the heating body; or both the first substrate and the second substrate are conductive to be used as the heating body.

[0007] Optionally, the first substrate has a groove structure, the groove structure includes an atomization groove and an air inlet groove and a liquid inlet groove respectively connected to the atomization groove, and the second substrate cooperates with the groove structure to form the atomization chamber, the air inlet channel and the liquid inlet channel; wherein, the first substrate is conductive, the opening is a through hole arranged on the first substrate, and a plurality of the through holes are staggered with the groove structure; or the second substrate is conductive, the opening is a through hole arranged on the second substrate, and a plurality of the through holes are staggered with the groove structure.

[0008] Optionally, the first substrate includes a first surface and a second surface arranged opposite to each other, the second surface has a groove structure, and the groove structure includes an atomization groove and an air inlet groove and a liquid inlet groove respectively connected to the atomization groove; the second substrate includes a third surface and a fourth surface arranged opposite to each other, the third surface is arranged in contact with the second surface, and cooperates with the groove structure to form the atomization chamber, the air inlet channel and the liquid inlet channel; the opening is a blind hole, wherein the first substrate is conductive, and a plurality of the blind holes are opened on the first surface; and / or the first substrate is conductive, and a plurality of the blind holes are opened on the second surface, and are staggered with the groove structure; and / or the second substrate is conductive, and a plurality of the blind holes are opened on the third surface, and are staggered with the groove structure; and / or the second substrate is conductive, and a plurality of the blind holes are opened on the fourth surface.

[0009] Optionally, the opening is in a shape of circle, oval, square or polygon.

[0010] Optionally, the plurality of openings have different sizes.

[0011] Optionally, the nozzle further includes a first electrode and a second electrode; the first electrode and the second electrode are disposed on the injection portion and are electrically connected to the heating body.

[0012] Optionally, the first electrode and the second electrode are both arranged on the outer surface of the injection portion, and the first electrode and the second electrode are both arranged to be offset from the port of the opening located on the outer surface of the injection portion.

[0013] Optionally, the first substrate is conductive so as to be used as the heating body; wherein the first electrode and the second electrode are arranged on the surface of the first substrate away from the second substrate; or the first electrode and the second electrode are arranged on the surface of the first substrate close to the second substrate, and the first electrode and the second electrode are exposed by opening a lead hole in the second substrate; or the first electrode and the second electrode are arranged on the side of the first substrate and / or the second substrate.

[0014] Optionally, the first substrate includes a first surface and a second surface arranged opposite to each other, the second surface has a groove structure, and the groove structure includes at least one of an atomization groove, an air inlet groove and a liquid inlet groove; the second substrate is stacked with the first substrate; wherein, the first substrate is conductive so as to be used as the heating body; the groove structure also includes two spaced-apart grooves, the first electrode and the second electrode are arranged in the two grooves in a one-to-one correspondence, and the surfaces of the first electrode and the second electrode away from the bottom wall of the groove are flush with the second surface; the second substrate has two lead holes, and the lead holes expose the corresponding electrodes; or the second substrate is conductive so as to be used as the heating body; the surface of the second substrate facing the first substrate has two spaced-apart grooves, the first electrode and the second electrode are arranged in the two grooves in a one-to-one correspondence, and the surfaces of the first electrode and the second electrode away from the bottom wall of the groove are flush with the surface of the second substrate facing the first substrate; the first substrate has two lead holes staggered with the groove structure, and the lead holes expose the corresponding electrodes.

[0015] Optionally, the side wall of the atomization groove has the mist outlet, and the mist outlet extends to the edge of the first substrate.

[0016] Optionally, the first substrate has a first edge and a second edge relative to each other, and a third edge connecting the first edge and the second edge, and the atomization groove is arranged close to the first edge and has the mist outlet located on the first edge; wherein the air inlet groove extends from the second edge to the atomization groove, and the liquid inlet groove extends from the third edge to the atomization groove; or the air inlet groove extends from the third edge to the atomization groove, and the liquid inlet groove extends from the second edge to the atomization groove.

[0017] Optionally, the bottom wall of the atomization groove has the mist outlet, and the mist outlet extends to the first surface.

[0018] Optionally, the first substrate has a first edge and a second edge relative to each other, and a third edge connecting the first edge and the second edge, and the atomization groove is a through hole extending from the second surface of the first substrate to the first surface, and the port of the through hole located on the first surface is used as the mist outlet; wherein, the liquid inlet groove extends from the first edge to the atomization groove, and the air inlet groove extends from the second edge to the atomization groove, so that the liquid inlet groove and the air inlet groove are arranged on opposite sides of the atomization groove; or the liquid inlet groove extends from the third edge to the atomization groove, and the air inlet groove extends from the second edge to the atomization groove, so that the liquid inlet groove and the air inlet groove are arranged on adjacent sides of the atomization groove; or the liquid inlet groove extends from the second edge to the atomization groove, and the air inlet groove extends from the third edge to the atomization groove, so that the liquid inlet groove and the air inlet groove are arranged on adjacent sides of the atomization groove.

[0019] Optionally, the material of the first substrate and / or the material of the second substrate includes an insulator, a semiconductor or a conductor.

[0020] Optionally, the material of the first substrate and / or the material of the second substrate includes an insulator, the insulator includes glass; or the material of the first substrate and / or the material of the second substrate includes a semiconductor, the semiconductor includes silicon; or the material of the first substrate and / or the material of the second substrate includes a conductor, the conductor includes metal.

[0021] Optionally, the material of the first substrate includes silicon with a resistivity less than 0.01 Ω·cm; the material of the second substrate includes an insulating glass sheet or silicon with a resistivity higher than 10 Ω·cm.

[0022] Optionally, the nozzle further comprises a sensor for acquiring detection information of the aerosol generating substrate; the detection information comprises temperature information or viscosity information.

[0023] Optionally, the sensor is arranged on the outer surface of the injection part to detect the ambient temperature of the injection part, so as to heat the aerosol generating matrix in the liquid inlet channel to a preset temperature according to the ambient temperature; or the sensor is arranged in the liquid inlet channel to detect the temperature information or viscosity information of the aerosol generating matrix flowing through the liquid inlet channel, and heat the aerosol generating matrix according to the detection information.

[0024] In order to solve the above technical problems, the second technical solution provided in the present application is: to provide a nebulizer, including a liquid storage tank, a nozzle and a micropump, the liquid storage tank is used to store the aerosol generating matrix; the nozzle is the nozzle described in any one of the above items; the liquid inlet channel is connected to the liquid storage tank; the micropump is connected to the air inlet channel for supplying air to the nozzle.

[0025] In order to solve the above technical problems, the third technical solution provided in the present application is: providing an electronic atomization device, comprising an atomizer and a power supply assembly; the atomizer is an atomizer described in any one of the above items; the power supply assembly is coupled to the atomizer to provide power to the atomizer; the power supply assembly includes a processor, and the processor is used to obtain temperature information or viscosity information of the aerosol generating substrate, and control the heating body to heat the aerosol generating substrate according to the temperature information or viscosity information.

[0026] Beneficial effects of the present application: Different from the prior art, the nozzle of the present application includes a spray part, which has an atomization chamber and an air inlet channel and a liquid inlet channel respectively connected to the atomization chamber; the gas entering the atomization chamber from the air inlet channel collides with the aerosol-generating matrix entering the atomization chamber from the liquid inlet channel and is atomized to form an aerosol; the atomization chamber has a mist outlet, so that the aerosol flows out from the mist outlet; wherein, at least part of the spray part is conductive so as to be used as a heating body; the heating body has a plurality of openings, and the plurality of openings are not connected to the atomization chamber, the air inlet channel and the liquid inlet channel. The present application uses at least a part of the injection part itself as a heating body to atomize the aerosol generating matrix. On the one hand, low-temperature atomization is used to make the taste of the aerosol generating matrix highly restored, and at the same time, it is not easy to produce harmful substances and has high safety. On the other hand, the injection part itself is used as a heating body, which can improve the heating efficiency, improve the heat transfer efficiency, and have high energy utilization. At the same time, it can reduce the viscosity of the aerosol generating matrix to improve the atomization efficiency. At the same time, a plurality of openings are opened on the heating body to adjust the resistance of the heating body and improve the thermal energy utilization of the heating body. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0028] Figure 1 It is a schematic diagram of the structure of the electronic atomization device provided by the present application;

[0029] Figure 2 It is a structural schematic diagram of the atomizer provided by the present application;

[0030] Figure 3 It is a schematic diagram of the overall structure of the nozzle provided by the present application;

[0031] Figure 4 is an exploded schematic diagram of a first structure of a nozzle provided in the first embodiment of the present application;

[0032] Figure 5 is an exploded schematic diagram of a second structure of the nozzle provided in the first embodiment of the present application;

[0033] Figure 6 is a schematic diagram of the exploded structure of the nozzle provided in the second embodiment of the present application;

[0034] Figure 7 is a schematic diagram of the exploded structure of a nozzle provided in the third embodiment of the present application;

[0035] Figure 8 is a schematic diagram of an exploded structure of a nozzle provided in the fourth embodiment of the present application;

[0036] Fig. 9 yes Figure 8 Schematic diagram of the cross-sectional structure along line AA;

[0037] Fig.10 is another exploded structural schematic diagram of the nozzle provided in the fourth embodiment of the present application;

[0038] Fig.11 is a schematic diagram of the exploded structure of a nozzle provided in the fifth embodiment of the present application;

[0039] Fig.12 is a schematic diagram of the exploded structure of a nozzle provided in the sixth embodiment of the present application;

[0040] Fig.13 yes Fig.12 The schematic diagram of the cross-sectional structure along the BB line;

[0041] Fig.14 It is a schematic diagram of thermal field distribution simulation of the first substrate before and after the through hole is opened in the heating body provided by the present application;

[0042] Fig.15 It is a schematic diagram of some modules of the electronic atomization device provided in this application. DETAILED DESCRIPTION

[0043] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0044] The terms "first", "second" and "first" 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 indicated technical features. Thus, the features defined as "first" and "second" can expressly or implicitly include at least one of the features. All directional indications (such as up, down, left, right, front, back ...) in the embodiments of the present application are only used to explain the relative position relationship, movement conditions, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication also changes accordingly. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the steps or units listed, but optionally also includes steps or units that are not listed, or optionally also includes other steps or units inherent to these processes, methods, products or devices.

[0045] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0046] The inventor of this application has found that the current electronic atomization device products for oil mainly use thermal atomization technology to generate aerosols, which use porous materials to guide oil (such as ceramics and porous cotton) and combine heating wires to form aerosols by high-temperature atomization. However, when the ceramic core and cotton core are not supplied with enough liquid, they are prone to dry burning and produce a burnt smell. At the same time, high-temperature atomization is prone to cause more chemical reactions and produce harmful substances (such as acetaldehyde), which poses certain safety risks.

[0047] Pneumatic atomization is a widely used room temperature atomization method, which uses high-speed airflow to shear and break up liquid to form aerosol, and has the advantages of low cost and high safety. However, the existing technology has the following problems:

[0048] The atomization technology has a high heating temperature. On the one hand, the resistance wire is prone to carbon accumulation, thus affecting the taste and life of the atomization core. On the other hand, high temperature will also cause the cracking of flavors and fragrances, resulting in low taste restoration. In addition, it is easy to produce side reactions and produce harmful substances such as aldehydes, ketones and carbon monoxide, posing certain safety risks.

[0049] When a conventional small pump is used as the power source, pneumatic atomization has a poor atomization effect on high-viscosity media to be atomized and is prone to produce large droplets.

[0050] In order to solve the above problems, the present application provides a nozzle, an atomizer and an electronic atomization device.

[0051] See also Figure 1 , Figure 1 It is a schematic diagram of the structure of the electronic atomization device provided in this application.

[0052] The electronic atomization device 300 provided in the present application may be an active liquid supply type, and the electronic atomization device 300 may be used for atomization of an aerosol-generating matrix. The electronic atomization device 300 includes an atomizer 100 and a power supply assembly 200 electrically connected to each other, the power supply assembly 200 is coupled to the atomizer 100, and is used to provide power to the atomizer 100, and the power supply assembly 200 controls the atomizer 100 of the electronic atomization device 300 to work.

[0053] The atomizer 100 is used to store an aerosol-generating substrate and atomize the aerosol-generating substrate to form an aerosol that can be inhaled by a user. The atomizer 100 can be used in different fields, such as medical treatment, beauty treatment, leisure inhalation, etc.

[0054] In a specific embodiment, the atomizer 100 can be used in an electronic aerosolization device to atomize an aerosol-generating matrix and generate an aerosol for a user to inhale. The following embodiments all take this recreational inhalation as an example. The power supply assembly 200 is used to couple the atomizer 100 of the active liquid supply type electronic atomization device 300 to control the operation of the atomizer 100.

[0055] See also Figures 2 to 5 , Figure 2 It is a structural schematic diagram of the atomizer provided by the present application; Figure 3 It is a schematic diagram of the overall structure of the nozzle provided by the present application; Figure 4 is an exploded schematic diagram of a first structure of a nozzle provided in the first embodiment of the present application; Figure 5 It is a schematic diagram of the decomposition of the second structure of the nozzle provided in the first embodiment of the present application.

[0056] The atomizer 100 provided in the present application may include a liquid storage tank 20, a nozzle 10, a micro pump 30 and a housing 40, wherein the liquid storage tank 20 is used to store an aerosol generating substrate; the nozzle 10 is used to atomize the aerosol generating substrate; the nozzle 10 has an air inlet channel 11, a liquid inlet channel 12 and an atomizing chamber 13; the liquid inlet channel 12 and the air inlet channel 11 are connected to the atomizing chamber 13. One end of the liquid inlet channel 12 is connected to the liquid storage tank 20, and the aerosol generating substrate in the liquid storage tank 20 can be introduced into the atomizing chamber 13 for atomization. The housing 40 has an installation space, and the nozzle 10 is accommodated in the installation space. The micro pump 30 is connected to the air inlet channel 11, and is used to supply air to the nozzle 10, so as to atomize the aerosol generating substrate in the nozzle 10. Specifically, the micro pump 30 is in fluid communication with the air inlet channel 11 of the nozzle 10, and is used to provide a high-speed airflow to the nozzle 10. The liquid inlet channel 12 is fluidically connected to the liquid storage tank 20. The aerosol generating matrix in the liquid storage tank 20 is transmitted to the position of the atomization chamber 13 due to the negative pressure, and is atomized once to form an aerosol after colliding with the high-speed airflow provided by the micro pump 30. When the aerosol generating matrix flows through the liquid inlet channel 12, the heating body 102 corresponding to the liquid inlet channel 12 heats the aerosol generating matrix, thereby reducing the viscosity of the aerosol generating matrix.

[0057] In one embodiment, if Figure 2 As shown, the atomizer 100 may further include a connecting channel 14, which is disposed between the nozzle 10 and the micropump 30, and the amount of the aerosol-generating substrate entering the nozzle 10 is controlled by the micropump 30. A liquid supply section 17 is disposed between the liquid storage tank 20 and the nozzle 10, and the liquid supply section 17 communicates with the liquid storage tank 20 and the nozzle 10 to transfer the aerosol-generating substrate in the liquid storage tank 20 to the position of the nozzle 10. In one embodiment, the liquid supply rate of the nozzle 10 can be controlled by controlling the rotation speed of the micropump 30; and the liquid supply amount of the nozzle 10 can be controlled by controlling the rotation speed and rotation time of the micropump 30. That is, the atomization parameters in the atomization process of the atomizer 100 can be controlled by controlling the rotation speed and rotation time of the micropump 30.

[0058] The liquid storage tank 20 can be accommodated in the installation space, or can be arranged outside the installation space, and it is arranged according to the actual situation. The specific structures of the liquid inlet channel 12, the air inlet channel 11 and the atomization chamber 13 will be described in the following content.

[0059] like Figure 3 and Figure 4As shown, the nozzle 10 provided in the present application includes an injection part 101, and the injection part 101 has a groove structure 15, and the groove structure 15 includes an atomizing chamber 13 and an air inlet channel 11 and a liquid inlet channel 12 respectively connected to the atomizing chamber 13; the air inlet channel 11 is used to compress air and transport the air to the atomizing chamber 13, and the aerosol generating substrate enters the atomizing chamber 13 from the liquid inlet channel 12. After the gas entering the atomizing chamber 13 from the air inlet channel 11 collides with the aerosol generating substrate entering the atomizing chamber 13 from the liquid inlet channel 12, atomization occurs once due to shearing to form an aerosol; the atomizing chamber 13 has a mist outlet 131, so that the atomized aerosol flows out from the mist outlet 131. The number of the air inlet channel 11 and the liquid inlet channel 12 can be one or more, and the present application takes one liquid inlet channel 12 and one air inlet channel 11 as an example for explanation.

[0060] In one embodiment, at least a portion of the ejection portion 101 is electrically conductive and serves as the heating body 102 .

[0061] Specifically, at least part of the conduction of the ejection part 101 includes that all or only part of the ejection part 101 is conductive, and serves as the heating body 102 to heat the aerosol generating substrate. Taking the ejection part 101 consisting of the first substrate 104 and the second substrate 103 as an example, the first substrate 104 and the second substrate 103 may be both conductive, or the first substrate 104 or the second substrate 103 may be conductive. The entire first substrate 104 or the entire second substrate 103 may be conductive, or part of the first substrate 104 or part of the second substrate 103 may be conductive. The part of the first substrate 104 corresponding to the groove structure 15 may be conductive, or the surface of the first substrate 104 close to the groove structure 15 or the surface away from the groove structure 15 may be doped to form a conductive layer.

[0062] The heating body 102 can be used to heat the liquid inlet channel 12 to reduce the viscosity of the aerosol generating matrix, and / or the heating body 102 can be used to heat the air inlet channel 11 to improve the atomization effect; and / or the heating body 102 can also perform secondary atomization on the aerosol after the primary atomization, thereby reducing the particle size of the aerosol. The specific configuration is based on the needs, and the present application does not limit this.

[0063] In one embodiment, the heating body 102 heats and reduces the viscosity of the aerosol-generating substrate in the liquid inlet channel 12, thereby ensuring the flow rate of the aerosol-generating substrate in the liquid inlet channel 12 and preventing the channel from being blocked. The present application atomizes the aerosol-generating substrate through the liquid inlet channel 12, the air inlet channel 11 and the atomizing chamber 13 to form an aerosol, and allows the aerosol to flow out through the atomizing port 131, thereby achieving the dual effects of reducing viscosity and pneumatic atomization, and at the same time improving the atomization effect.

[0064] In one embodiment, the heating body 102 can heat the gas and the liquid at the same time during the process of gas supply through the gas inlet channel 11 and liquid supply through the liquid inlet channel 12. This can reduce the internal heat exchange process between the gas and the liquid, further increase the temperature rise rate of the high-viscosity aerosol-generating substrate, and increase the viscosity drop rate, thereby improving the atomization effect.

[0065] In one embodiment, the spray portion 101 also includes a mist outlet channel (not shown) connected to the mist outlet 131, and the aerosol atomized by a single collision flows out through the mist outlet channel; the heating body 102 can also be arranged corresponding to the mist outlet channel to perform secondary atomization on the aerosol atomized by a single collision, thereby reducing the particle size of the aerosol and improving the user's inhalation experience.

[0066] In one embodiment, the injection unit 101 further includes a first substrate 104 and a second substrate 103, and the first substrate 104 and the second substrate 103 cooperate to form an atomization chamber 13, an air inlet channel 11, and a liquid inlet channel 12. The present application can be used as a heating body 102 by making the first substrate 104 conductive, or as a heating body 102 by making the second substrate 103 conductive, or as a heating body 102 by making the first substrate 104 and the second substrate 103 both conductive. The first substrate 104 and the second substrate 103 can be sheet-shaped or plate-shaped, so that the first substrate 104 and the second substrate 103 can be attached and bonded. The first substrate 104 and the second substrate 103 can be a single-layer structure or a multi-layer structure.

[0067] In one embodiment, the material of the first substrate 104 and / or the material of the second substrate 103 includes an insulator, a semiconductor or a conductor.

[0068] Specifically, the material of the first substrate 104 and / or the material of the second substrate 103 may include an insulator, and the insulator includes glass; or the material of the first substrate 104 and / or the material of the second substrate 103 include a semiconductor, and the semiconductor includes silicon; or the material of the first substrate 104 and / or the material of the second substrate 103 include a conductor, and the conductor includes a metal. In one embodiment of the present application, the liquid inlet channel 12, the air inlet channel 11 and the atomization chamber 13 can be an internal flow channel structure bonded to two substrates. The bonded substrate includes but is not limited to silicon-silicon bonding, silicon-glass bonding, glass-glass bonding, and metal-metal bonding, etc. That is, the materials of the first substrate 104 and the second substrate 103 can be the same or different.

[0069] In one embodiment, the material of the first substrate 104 may further include low-resistance silicon with a resistivity less than 0.01 Ω·cm; the material of the second substrate 103 includes an insulating glass sheet or high-resistance silicon with a resistivity higher than 10 Ω·cm.

[0070] In one embodiment, the first substrate 104 has a first edge 1043 and a second edge 1044 relative to each other, and a third edge 1045 connecting the first edge 1043 and the second edge 1044. The first edge 1043, the second edge 1044 and the third edge 1045 can all be understood as the connecting edges between the side of the first substrate 104 and the second surface 1042.

[0071] In one embodiment, the nozzle 10 also includes a first electrode 105 and a second electrode 106; the first electrode 105 and the second electrode 106 are arranged in the injection portion 101 and are electrically connected to the heating body 102, so as to realize electrical heating of the heating body 102 by electrically connecting the first electrode 105 and the second electrode 106 to the power supply component 200.

[0072] like Figure 3 As shown, the first substrate 104 includes a first surface 1041 and a second surface 1042 that are arranged opposite to each other, the second substrate 103 is stacked with the first substrate 104, and the second substrate 103 includes a third surface 1031 and a fourth surface 1032 that are arranged opposite to each other. In one embodiment, the first substrate 104 is conductive and used as a heating body 102, and the first electrode 105 and the second electrode 106 can be arranged on the surface of the first substrate 104 away from the second substrate 103, that is, the first surface 1041, so that the first electrode 105 and the second electrode 106 can be directly connected and led out through a pin (not shown), which is convenient for setting. The first electrode 105 and the second electrode 106 can be metal electrodes with good ohmic contact obtained by processes such as magnetron sputtering. The first electrode 105 and the second electrode 106 are respectively used as positive and negative electrodes, and their thickness, width, length and shape can be adjusted according to needs.

[0073] like Figure 3 As shown, the first substrate 104 is conductive as the heating body 102, and the heating body 102 has a plurality of openings 16, and the plurality of openings 16 are not connected to the atomizing chamber 13, the air inlet channel 11, and the liquid inlet channel 12. The heating body 102 is provided with a plurality of openings 16 to improve the thermal conductivity of the heating body 102 and improve the utilization rate of thermal energy. At the same time, the plurality of openings 16 are not connected to the atomizing chamber 13, the air inlet channel 11, and the liquid inlet channel 12, which can prevent the openings 16 from being connected to the groove structure 15 to cause leakage, insufficient atomization, and other problems.

[0074] Specifically, the first substrate 104 is conductive as the heating body 102. In one embodiment, when the opening 16 is set as a through hole 161, whether it is opened on the first substrate 104 or the second surface 1042, the through hole 161 needs to be staggered with the groove structure 15 to prevent the opening 16 from being connected to the groove structure 15, causing leakage, and the liquid aerosol generating matrix in the opening 16 cannot be atomized. The situation when the groove structure 15 is opened on the second substrate 103 and the opening 16 is set as a through hole 161 is the same as that when it is opened on the first substrate 104. It is also necessary to stagger the plurality of through holes 161 with the groove structure 15, which will not be repeated here. It can be understood that whether the first substrate 104 or the second substrate 103 is used as the heating body 102, the resistivity of the substrate used as the heating body 102 is lower than the resistivity of other parts, so that the heating body 102 consumes less energy, thereby improving the heating efficiency and atomization efficiency of the nozzle 10.

[0075] like Figure 3 and Figure 4 As shown, in one embodiment, the second surface 1042 has a groove structure 15, and the groove structure 15 includes an atomizing groove 132 and an air inlet groove 111 and a liquid inlet groove 121 respectively connected to the atomizing groove 132. When the second substrate 103 is covered on the first substrate 104, the third surface 1031 is arranged in affixed with the second surface 1042, so that the third surface 1031 of the second substrate 103 cooperates with the groove structure 15 opened on the first substrate 104 to form an atomizing chamber 13, an air inlet channel 11 and a liquid inlet channel 12. It can be understood that the groove structure 15 can also be opened on a surface of the second substrate 103, and is covered on the second substrate 103 by the first substrate 104, and cooperates with the groove structure 15 to form the atomizing chamber 13, the air inlet channel 11 and the liquid inlet channel 12 respectively, and the present application does not limit this.

[0076] In another embodiment, the opening 16 may be a blind hole 162. When the first substrate 104 is conductive and serves as the heating body 102, a plurality of blind holes 162 are opened on the first surface 1041. Since the groove structure 15 is not opened on the first surface 1041, and the opening 16 is not connected to the groove structure 15 when it is a blind hole 162, the blind hole 162 may be opened on the entire surface of the first surface 1041.

[0077] When the first substrate 104 is conductive and serves as the heating body 102 , and a plurality of blind holes 162 are opened on the second surface 1042 , the plurality of blind holes 162 need to be staggered with the groove structure 15 to prevent the blind holes 162 from being connected with the groove structure 15 and causing problems such as liquid leakage and insufficient atomization.

[0078] When the second substrate 103 is conductive and serves as the heating body 102, and multiple blind holes 162 are opened on the third surface 1031, since the third surface 1031 and the groove structure 15 of the second surface 1042 are arranged relative to each other, the blind holes 162 opened on the third surface 1031 also need to be staggered with the groove structure 15 to prevent the blind holes 162 from being connected with the groove structure 15 and causing problems such as liquid leakage and insufficient atomization.

[0079] When the second substrate 103 is conductive and serves as the heating body 102, and a plurality of blind holes 162 are opened on the fourth surface 1032, since the fourth surface 1032 is the surface of the second substrate 103 that is away from the groove structure 15 and does not contact the groove structure 15, and since the opening height of the blind holes 162 is set to be not connected to the groove structure 15, the plurality of blind holes 162 opened on the fourth surface 1032 do not need to be staggered with the groove structure 15 and can be opened on the entire surface of the fourth surface 1032.

[0080] The first electrode 105 and the second electrode 106 are preferably both disposed on the outer surface of the injection portion 101, so as to facilitate the extraction of the first electrode 105 and the second electrode 106. At the same time, the first electrode 105 and the second electrode 106 are both disposed at a position offset from the port of the opening 16 located on the outer surface of the injection portion 101. That is, if the opening 16 is provided, the position where the first electrode 105 and the second electrode 106 are disposed is preferably offset from the position where the opening 16 is disposed, so as to prevent the problems of poor electrode contact and affected electrical connection effect caused by disposing the first electrode 105 and the second electrode 106 at the position of the opening 16.

[0081] The following is a specific embodiment of the nozzle 10 provided in this application.

[0082] First embodiment:

[0083] like Figure 4As shown, the first electrode 105 and the second electrode 106 can be arranged on the surface of the first substrate 104 close to the second substrate 103, that is, the second surface 1042. Specifically, the first receiving groove 135 and the second receiving groove 136 can be opened on the second surface 1042, and the first electrode 105 is embedded in the first receiving groove 135, and the second electrode 106 is embedded in the second receiving groove 136. For example, the groove structure 15 can be opened on the second surface 1042 by the same process, including opening the atomization groove 132, the liquid inlet groove 121, the air inlet groove 111, the first receiving groove 135 and the second receiving groove 136, and then the first electrode 105 and the second electrode 106 are deposited in the first receiving groove 135 and the second receiving groove 136 by a deposition process. After deposition, the first electrode 105 and the second electrode 106 can be made flush with the second surface 1042 by grinding, polishing and other processes, so that the first substrate 104 and the second substrate 103 can be fully contacted during bonding to ensure the bonding effect. Accordingly, at this time, it is necessary to open the first lead hole 181 and the second lead hole 182 on the second substrate 103, so that the first electrode 105 and the second electrode 106 are exposed through the first lead hole 181 and the second lead hole 182, so as to facilitate the first electrode 105 and the second electrode 106 to be led out from the first lead hole 181 and the second lead hole 182 respectively through a wire (not shown) or a pin. The first lead hole 181 and the second lead hole 182 need to be set corresponding to the first electrode 105 and the second electrode 106. It can be understood that this structure allows the first electrode 105 and the second electrode 106 to be clamped between the first substrate 104 and the second substrate 103, which can avoid the first electrode 105 and the second electrode 106 from being exposed to the outside for a long time, and reduce the risk of being corroded by the backflow aerosol. Moreover, the lead hole opened in the second substrate 103 can also play a role in fixing the pin.

[0084] Preferably, if Figure 5 As shown, the first receiving groove 135 and the second receiving groove 136 opened on the second surface 1042 can also be blind grooves, so that after the first substrate 104 is bonded to the second substrate 103, the first electrode 105 and the second electrode 106 can be completely covered by the second substrate 103, thereby avoiding the risk of the first electrode 105 and the second electrode 106 being exposed to the outside and corroded by the backflow aerosol.

[0085] In this embodiment, the opening 16 is set as a through hole 161, and a plurality of through holes 161 are provided on the second surface 1042 of the first substrate 104 to improve the heating effect of the heating body 102 on the groove structure 15 and the thermal energy utilization rate of the heating body 102. It should be noted that in this embodiment, the plurality of through holes 161 provided on the second surface 1042 need to be staggered with the groove structure 15 to avoid problems such as leakage or insufficient atomization. And the plurality of through holes 161 are preferably staggered with the first electrode 105 and the second electrode 106 to avoid the through holes 161 affecting the conductive effect of the first electrode 105 and the second electrode 106.

[0086] Second embodiment:

[0087] See also Figure 6 , Figure 6 It is a schematic diagram of the exploded structure of the nozzle provided in the second embodiment of the present application.

[0088] like Figure 6 As shown, the first electrode 105 and the second electrode 106 can also be arranged on the surface of the second substrate 103 close to the first substrate 104. Similarly, by opening a receiving groove on the surface of the second substrate 103 close to the first substrate 104, the first electrode 105 and the second electrode 106 are embedded in the receiving groove, so as to facilitate the bonding of the first substrate 104 and the second substrate 103. Correspondingly, at this time, it is necessary to open a first lead hole 181 and a second lead hole 182 on the first substrate 104 so that the first electrode 105 and the second electrode 106 are exposed through the first lead hole 181 and the second lead hole 182, so as to facilitate the first electrode 105 and the second electrode 106 to be led out from the first lead hole 181 and the second lead hole 182 through a wire or a pin, respectively. In this embodiment, the first lead hole 181 and the second lead hole 182 need to be arranged corresponding to the first electrode 105 and the second electrode 106, and need to be staggered with the atomization groove 132, the liquid inlet groove 121 and the air inlet groove 111. In this structure, a method of providing a first electrode 105 and a second electrode 106 by opening a receiving groove on the surface of the second substrate 103 close to the first substrate 104 is similar to the method of Figure 4 and Figure 5 The same as in, no further description is given here.

[0089] Alternatively, the first electrode 105 and the second electrode 106 are also disposed on the side of the first substrate 104 and / or the second substrate 103, which also has the advantage of being conveniently led out and electrically connected to the power supply assembly 200. For example, the first electrode 105 and the second electrode 106 can also be disposed on the surface formed by splicing the side of the first substrate 104 and the side of the second substrate 103.

[0090] In this embodiment, if Figure 6As shown, the opening 16 is set as a blind hole 162. By opening a plurality of blind holes 162 on the surface of the second substrate 103 away from the first substrate 104, the heating effect of the heating body 102 on the groove structure 15 and the thermal energy utilization rate of the heating body 102 are improved. Since a plurality of blind holes 162 are opened on the second substrate 103 in this embodiment, they will not contact the groove structure 15, so it is not necessary to stagger the plurality of blind holes 162 with the groove structure 15. However, the plurality of blind holes 162 are preferably staggered with the first electrode 105 and the second electrode 106. For example, in this embodiment, the plurality of blind holes 162 and the first electrode 105 and the second electrode 106 are arranged on different surfaces of the heating body 102 to avoid the blind holes 162 affecting the conductive effect of the first electrode 105 and the second electrode 106.

[0091] Third embodiment:

[0092] See also Figure 7 and Fig.14 , Figure 7 is a schematic diagram of the exploded structure of a nozzle provided in the third embodiment of the present application; Fig.14 This is a schematic diagram of thermal field distribution simulation of the first substrate before and after a through hole is opened in the heating body provided in the present application.

[0093] In this embodiment, the first substrate 104 is a low-resistance silicon wafer with a resistivity of less than 0.01Ω·cm; the second substrate 103 is an insulating glass sheet. The entire first substrate 104 is used as the heating body 102. The first electrode 105 and the second electrode 106 are two strip-shaped metal films arranged at intervals on the surface of the first substrate 104 away from the second substrate 103.

[0094] like Figure 7 As shown, in this embodiment, the second surface 1042 has an atomizing groove 132 and an air inlet groove 111 and a liquid inlet groove 121 respectively connected to the atomizing groove 132. The second substrate 103 is stacked with the first substrate 104, and the second substrate 103 is covered on the second surface 1042, and cooperates with the atomizing groove 132, the air inlet groove 111 and the liquid inlet groove 121 to form an atomizing chamber 13, an air inlet channel 11 and a liquid inlet channel 12 respectively. It can be understood that the atomizing groove 132 and the air inlet groove 111 and the liquid inlet groove 121 respectively connected to the atomizing groove 132 can be opened on the substrate surface including the heating body 102, and can also be opened on the substrate surface not including the heating body 102. It can be understood that the atomization groove 132 and the air inlet groove 111 and the liquid inlet groove 121 respectively connected to the atomization groove 132 can also be simultaneously opened on a surface of the second substrate 103, and the atomization chamber 13, the air inlet channel 11 and the liquid inlet channel 12 are respectively formed through the cooperation of the first substrate 104 and the second substrate 103, and the present application does not impose any restrictions on this.

[0095] In this embodiment, the side wall of the atomizing groove 132 has a mist outlet 131 , and the mist outlet 131 extends to the edge of the first substrate 104 . At the same time, the mist outlet 131 is also the outlet of the nozzle 10 .

[0096] In this embodiment, the atomizing groove 132 is arranged near the first side 1043 and has a mist outlet 131 located at the first side 1043, the air inlet groove 111 extends from the second side 1044 to the atomizing groove 132, and the liquid inlet groove 121 extends from the third side 1045 to the atomizing groove 132, and is connected to the atomizing groove 132 at one end near the atomizing groove 132. Alternatively, the positions of the air inlet groove 111 and the liquid inlet groove 121 can also be interchanged, for example, the air inlet groove 111 extends from the third side 1045 to the atomizing groove 132, and the liquid inlet groove 121 extends from the second side 1044 to the atomizing groove 132.

[0097] In this embodiment, the functions of the first substrate 104 and the second substrate 103 can also be interchanged, that is, the second substrate 103 is used as the heating body 102, and the first electrode 105 and the second electrode 106 are arranged on the surface of the second substrate 103 away from the first substrate 104. The atomization groove 132, the air inlet groove 111 and the liquid inlet groove 121 can be opened on the first substrate 104. The first electrode 105 and the second electrode 106 are preferably arranged on the outer surface of the injection part 101. The specific arrangement method refers to the above content and will not be repeated here.

[0098] In this embodiment, if Figure 7 As shown, the opening 16 is set as a through hole 161, and a plurality of through holes 161 are provided on the second surface 1042 of the first substrate 104 to improve the heating effect of the heating body 102 on the groove structure 15 and the thermal energy utilization rate of the heating body 102. It should be noted that in this embodiment, the plurality of through holes 161 provided on the second surface 1042 need to be staggered with the groove structure 15 to avoid problems such as leakage or insufficient atomization. And the plurality of through holes 161 are preferably staggered with the first electrode 105 and the second electrode 106. In this embodiment, when the first electrode 105 and the second electrode 106 are provided on the first surface 1041, they also need to be staggered with the through hole 161 to avoid the through hole 161 affecting the conductive effect of the first electrode 105 and the second electrode 106. It can be understood that when the opening 16 in this embodiment is set as a blind hole 162, it only needs to be staggered with the groove structure 15, and does not need to be staggered with the first electrode 105 and the second electrode 106 provided on the first surface 1041.

[0099] For example, Fig.14 As shown, Fig.14The figure is a schematic diagram of the thermal field distribution simulation of the first substrate 104 before and after the through hole 161 is opened in the heating body 102. The resistivity is 0.01Ω·cm, and the resistance value simulation result of the first substrate 104 without the through hole 161 is 0.127Ω. The resistance value of the first substrate 104 after the uniform through hole 161 is opened becomes 0.179Ω. When simulating the thermal field distribution, positive and negative electrodes are added to the back, and the electrode thickness is 100um, the conductivity is 1e9S / m, and the thermal conductivity is 30W / (mK). The heating power is set to 0.5W through the data simulation calculation software, and the heat transfer coefficient is 10W / m2 considering the convection heat transfer process between the heating body 102 and the outside world. The temperature distribution result after 3s (seconds) is as follows: Fig.14 As shown, the highest temperature appears on the surface of the atomizing chamber 13. The highest temperature of the unperforated heating body 102 is about 304°C, while the temperature of the perforated heating body 102 is about 327°C, which is 7.5% higher. Therefore, the simulation results show that the resistance of the heating body 102 can be changed by opening the through hole 161, while the heating efficiency and energy utilization rate of the heating body 102 can be improved.

[0100] Fourth embodiment:

[0101] See also Figures 8 to 10 , Figure 8 is a schematic diagram of an exploded structure of a nozzle provided in the fourth embodiment of the present application; Fig. 9 yes Figure 8 Schematic diagram of the cross-sectional structure along line AA; Fig.10 This is another schematic diagram of the exploded structure of the nozzle provided in the fourth embodiment of the present application.

[0102] In this embodiment, the first substrate 104 is a low-resistance silicon wafer with a resistivity less than 0.01Ω·cm; the second substrate 103 is a high-resistance silicon wafer with a resistivity greater than 10Ω·cm. The entire first substrate 104 is used as a heating body 102. The first electrode 105 and the second electrode 106 are two strip-shaped metal films arranged at intervals on the surface of the first substrate 104 away from the second substrate 103.

[0103] In this embodiment, the bottom wall of the atomizing groove 132 has a mist outlet 131, and the mist outlet 131 extends to the first surface 1041. The atomizing groove 132 can be arranged at any position of the second surface 1042, as long as it can be staggered with the liquid inlet groove 121 and the air inlet groove 111, and the liquid inlet groove 121 and the air inlet groove 111 are both connected to the atomizing groove 132.

[0104] Preferably, the atomization groove 132 forms a first through hole 133 extending from the second surface 1042 to the first surface 1041 , and the end of the first through hole 133 located on the first surface 1041 serves as the mist outlet 131 .

[0105] Specifically, the atomizing groove 132 is a first through hole 133 extending from the second surface 1042 of the first substrate 104 to the first surface 1041, and the port of the first through hole 133 located on the first surface 1041 is used as the mist outlet 131, so that the aerosol generated by atomization flows out from the mist outlet 131 located on the first surface 1041. In the present embodiment, the first through hole 133 is preferably perpendicular to the first surface 1041 and the second surface 1042. Among them, the liquid inlet groove 121 extends from the first side 1043 to the atomizing groove 132, and the air inlet groove 111 extends from the second side 1044 to the atomizing groove 132, so that the liquid inlet groove 121 and the air inlet groove 111 are arranged on opposite sides of the atomizing groove 132, so that the gas in the air inlet groove 111 and the aerosol generating matrix of the liquid inlet groove 121 collide better, thereby improving the atomization efficiency.

[0106] In this embodiment, if Fig.10 As shown, the opening 16 is set as a blind hole 162. By opening a plurality of blind holes 162 on the first surface 1041 of the first substrate 104, the heating effect of the heating body 102 on the groove structure 15 and the thermal energy utilization rate of the heating body 102 are improved. Since a plurality of blind holes 162 are opened on the first surface 1041 in this embodiment, they will not contact the groove structure 15, so it is not necessary to stagger the plurality of blind holes 162 with the groove structure 15, that is, the blind holes 162 can be set on the entire surface of the first surface 1041. However, the plurality of blind holes 162 are preferably staggered with the first electrode 105 and the second electrode 106 to avoid the blind holes 162 affecting the conductive effect of the first electrode 105 and the second electrode 106.

[0107] Fifth embodiment:

[0108] See also Fig.11 , Fig.11 It is a schematic diagram of the exploded structure of the nozzle provided in the fifth embodiment of the present application.

[0109] The difference between the fifth embodiment and the fourth embodiment is that in the fifth embodiment, the liquid inlet groove 121 and the air inlet groove 111 are not disposed on two opposite sides of the atomizing groove 132 , but are disposed on two adjacent sides of the side walls of the atomizing groove 132 .

[0110] Specifically, the atomizing groove 132 is a second through hole 134 extending from the second surface 1042 of the first substrate 104 to the first surface 1041, and the port of the second through hole 134 located on the first surface 1041 is used as the mist outlet 131, so that the aerosol generated by atomization flows out from the mist outlet 131 located on the first surface 1041. In this embodiment, the second through hole 134 is preferably perpendicular to the first surface 1041 and the second surface 1042. The liquid inlet groove 121 extends from the third side 1045 to the atomizing groove 132, and the air inlet groove 111 extends from the second side 1044 to the atomizing groove 132, so that the liquid inlet groove 121 and the air inlet groove 111 are arranged on two sides adjacent to the side wall of the atomizing groove 132. Or the positions of the air inlet groove 111 and the liquid inlet groove 121 can also be interchanged, for example, the liquid inlet groove 121 extends from the second side 1044 to the atomization groove 132, and the air inlet groove 111 extends from the third side 1045 to the atomization groove 132, so that the liquid inlet groove 121 and the air inlet groove 111 are arranged on two adjacent sides of the side wall of the atomization groove 132. The specific arrangement is based on needs, and this application does not limit this.

[0111] In the fourth and fifth embodiments, the through hole of the atomization groove 132 can be columnar, such as a cylinder, a polygonal prism, etc., or it can be an irregular column. As long as the liquid inlet groove 121 and the air inlet groove 111 are both connected to the atomization groove 132, and the outlet of the atomization groove 132 serves as the mist outlet 131 to allow the atomized aerosol to pass through, the present application does not impose any restrictions on this.

[0112] Likewise, the second substrate 103 may also be used as the heating body 102 in the fourth embodiment and the fifth embodiment.

[0113] In this embodiment, the opening 16 is set as a through hole 161, and a plurality of through holes 161 are provided on the second surface 1042 of the first substrate 104 to improve the heating effect of the heating body 102 on the groove structure 15 and the thermal energy utilization rate of the heating body 102. It should be noted that in this embodiment, the plurality of through holes 161 provided on the second surface 1042 and the groove structure 15 need to be staggered to avoid problems such as leakage or insufficient atomization. And the plurality of through holes 161 are preferably staggered with the first electrode 105 and the second electrode 106. Regardless of whether the plurality of through holes 161 and the first electrode 105 and the second electrode 106 are provided on different surfaces of the first substrate 104, they need to be staggered to avoid the through holes 161 affecting the conductive effect of the first electrode 105 and the second electrode 106.

[0114] Sixth embodiment:

[0115] See also Fig.12 and Fig.13 , Fig.12 is a schematic diagram of the exploded structure of a nozzle provided in the sixth embodiment of the present application; Fig.13 yes Fig.12 Schematic diagram of the cross-sectional structure along line BB.

[0116] The difference between the sixth embodiment and the first to fifth embodiments is that: the atomizing groove 132 is opened on the first surface 1041, the liquid inlet groove 121 and the air inlet groove 111 are opened on the second surface 1042, the atomizing groove 132 extends from the first surface 1041 to the second surface 1042, and the bottom wall of the atomizing groove 132 is connected to the bottom wall of the liquid inlet groove 121 and the bottom wall of the air inlet groove 111.

[0117] Specifically, the atomizing groove 132 is located in the middle area of ​​the first substrate 104, and the middle area is not necessarily the central area, as long as it is an area separated from the edge. The aerosol-generating matrix in the liquid inlet groove 121 and the gas entering the air inlet groove 111 extend from the side of the first substrate 104 to the middle area of ​​the first substrate 104, and the liquid inlet groove 121 and the air inlet groove 111 are not connected to each other, and one end of the liquid inlet groove 121 in the middle area and one end of the air inlet groove 111 in the middle area are respectively connected to the atomizing groove 132, so that the liquid in the liquid inlet groove 121 and the gas in the air inlet groove 111 reaching the middle area flow toward the first surface 1041, and then enter the atomizing groove 132 (atomizing chamber 13), so that the aerosol-generating matrix in the liquid inlet groove 121 and the gas entering the air inlet groove 111 collide and atomize in the atomizing chamber 13. The end of the atomizing groove 132 located on the first surface 1041 serves as a mist outlet 131 to allow the atomized aerosol to flow out.

[0118] In this embodiment, the liquid inlet groove 121 and the air inlet groove 111 can extend from two opposite sides of the first substrate 104 close to each other, or extend from two adjacent sides of the first substrate 104 close to the middle area of ​​the first substrate 104. As long as the liquid inlet groove 121 and the air inlet groove 111 can be connected to the atomization groove 132 opened on the first surface 1041, the present application does not impose any restrictions on this.

[0119] In this embodiment, the opening 16 is set as a blind hole 162, and a plurality of blind holes 162 are provided on the second surface 1042 of the first substrate 104 to improve the heating effect of the heating body 102 on the groove structure 15 and the thermal energy utilization rate of the heating body 102. It should be noted that in this embodiment, the plurality of blind holes 162 provided on the second surface 1042 need to be staggered with the groove structure 15 to avoid problems such as leakage or insufficient atomization. In this embodiment, the plurality of blind holes 162 provided on the second surface 1042 need to be staggered with the groove structure 15. However, since the first electrode 105, the second electrode 106 and the blind holes 162 are provided on different surfaces, the plurality of blind holes 162 do not need to be staggered with the first electrode 105 and the second electrode 106.

[0120] See also Fig.15 , Fig.15 It is a module schematic diagram of the power supply component provided in this application.

[0121] In one embodiment, the nozzle 10 further includes a sensor 250, and the sensor 250 is used to obtain detection information of the aerosol generating substrate, and the detection information includes temperature information or viscosity information.

[0122] Specifically, the sensor 250 can be arranged on the outer surface of the injection part 101, and is used to detect the ambient temperature of the injection part 101, so as to heat the aerosol generating substrate in the liquid inlet channel 12 to a preset temperature according to the ambient temperature. For example, a corresponding table or program of ambient temperature and heating temperature can be preset, and when the ambient temperature reaches a certain degree, the aerosol generating substrate is heated to a certain degree, so as to ensure the temperature of the aerosol generating substrate and prevent the viscosity of the aerosol generating substrate from being too high, affecting the flow rate or blocking the liquid inlet channel 12. The sensor 250 is arranged on the outer surface of the injection part 101, which has the advantages of convenient setting and monitoring, and the sensor 250 will not be affected by the liquid aerosol generating substrate, and has a longer service life.

[0123] Alternatively, the sensor 250 may also be disposed in the liquid inlet channel 12, for example, on the inner wall of the liquid inlet channel 12 or on the first substrate 104, to detect the temperature information or viscosity information of the aerosol generating substrate flowing through the liquid inlet channel 12, and heat the aerosol generating substrate according to the detected information. The sensor 250 disposed in the liquid inlet channel 12 has a higher detection accuracy, and can monitor the temperature information and viscosity information of the aerosol generating substrate in real time with higher accuracy, so that the heating body 102 can heat the aerosol generating substrate at any time according to the monitored information, and the heating is more targeted.

[0124] In another embodiment, the sensor 250 may also be disposed on the power supply assembly 200 .

[0125] Specifically, the power supply assembly 200 can be provided with a processor 210 electrically connected to the sensor 250, and the processor 210 receives the detection information of the sensor 250, which includes the temperature information and the viscosity information of the aerosol generating substrate, so as to control the nozzle 10 of the atomizer 100 to work according to the temperature information or the viscosity information, including controlling the heating body 102 to heat or not heat the aerosol generating substrate flowing through the liquid inlet channel 12. For example, when a low-viscosity aerosol generating substrate is used for atomization, it is not necessary to use a heating and viscosity reduction scheme, for example, when the liquid viscosity is less than 5 Pa.s, it is not necessary to heat and reduce the viscosity of the aerosol generating substrate. Or when the temperature of the nozzle use environment is high, it is not necessary to heat and reduce the viscosity of the aerosol generating substrate.

[0126] The nozzle disclosed in the present application includes an injection part, which has an atomization chamber and an air inlet channel and a liquid inlet channel respectively connected to the atomization chamber; the gas entering the atomization chamber from the air inlet channel collides with the aerosol generating matrix entering the atomization chamber from the liquid inlet channel and is atomized once to form an aerosol; the atomization chamber has a mist outlet, so that the aerosol flows out from the mist outlet; wherein, at least part of the injection part is conductive so as to be used as a heating body; the heating body has a plurality of openings, and the plurality of openings are not connected to the atomization chamber, the air inlet channel and the liquid inlet channel. The present application uses at least a part of the injection part itself as a heating body to atomize the aerosol generating matrix. On the one hand, low-temperature atomization is used to make the taste of the aerosol generating matrix highly restored, and at the same time, it is not easy to produce harmful substances and has high safety. On the other hand, the injection part itself is used as a heating body, which can improve the heating efficiency, improve the heat transfer efficiency, and have high energy utilization. At the same time, it can reduce the viscosity of the aerosol generating matrix to improve the atomization efficiency. At the same time, a plurality of openings are opened on the heating body to adjust the resistance of the heating body and improve the thermal energy utilization of the heating body.

[0127] The above description 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 present application specification and drawings, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A nozzle, characterized in that: include: The spraying part comprises an atomizing chamber and an air inlet channel and a liquid inlet channel respectively connected to the atomizing chamber; The gas entering the atomizing chamber from the air inlet channel collides with the aerosol-generating matrix entering the atomizing chamber from the liquid inlet channel and then is atomized to form an aerosol; the atomizing chamber has a mist outlet, so that the aerosol flows out from the mist outlet; wherein at least a portion of the ejection portion is electrically conductive so as to serve as a heating body; The heating body has a plurality of openings, and the plurality of openings are not connected with the atomization chamber, the air inlet channel, and the liquid inlet channel.

2. The nozzle according to claim 1, characterized in that The injection unit includes a first substrate and a second substrate which are stacked, and the first substrate and the second substrate cooperate to form the atomization chamber, the air inlet channel and the liquid inlet channel; wherein, The first substrate is electrically conductive so as to serve as the heating body; or The second substrate is electrically conductive so as to serve as the heating body; or The first substrate and the second substrate are both conductive to serve as the heating body.

3. The nozzle according to claim 2, characterized in that The first substrate has a groove structure, the groove structure includes an atomization groove and an air inlet groove and a liquid inlet groove respectively connected to the atomization groove, and the second substrate cooperates with the groove structure to form the atomization chamber, the air inlet channel and the liquid inlet channel; wherein, The first substrate is conductive, the opening is a through hole provided on the first substrate, and a plurality of the through holes are staggered with the groove structure; or The second substrate is conductive, the openings are through holes disposed on the second substrate, and a plurality of the through holes are staggered with the groove structure.

4. The nozzle according to claim 2, characterized in that The first substrate comprises a first surface and a second surface arranged opposite to each other, the second surface has a groove structure, the groove structure comprises an atomization groove and an air inlet groove and a liquid inlet groove respectively connected to the atomization groove; the second substrate comprises a third surface and a fourth surface arranged opposite to each other, the third surface is arranged in contact with the second surface, and cooperates with the groove structure to form the atomization chamber, the air inlet channel and the liquid inlet channel; the opening is a blind hole, wherein, The first substrate is conductive, and a plurality of the blind holes are opened on the first surface; and / or The first substrate is conductive, and a plurality of the blind holes are opened on the second surface and are staggered with the groove structure; and / or The second substrate is conductive, and a plurality of the blind holes are opened on the third surface and are staggered with the groove structure; and / or The second substrate is conductive, and a plurality of blind holes are opened on the fourth surface.

5. The nozzle according to any one of claims 1 to 4, characterized in that The shape of the opening is circular, elliptical, square or polygonal; and the plurality of openings have different sizes.

6. The nozzle according to claim 2, characterized in that It also includes a first electrode and a second electrode; the first electrode and the second electrode are arranged on the injection portion and are electrically connected to the heating body.

7. The nozzle according to claim 6, characterized in that The first electrode and the second electrode are both arranged on the outer surface of the injection portion, and the first electrode and the second electrode are both arranged in a staggered manner with respect to the port of the opening located on the outer surface of the injection portion.

8. The nozzle according to claim 7, characterized in that The first substrate is conductive to serve as the heating body; wherein, The first electrode and the second electrode are disposed on a surface of the first substrate away from the second substrate; or The first electrode and the second electrode are disposed on a surface of the first substrate close to the second substrate, and lead holes are opened in the second substrate to expose the first electrode and the second electrode; or The first electrode and the second electrode are disposed on the side of the first substrate and / or the second substrate.

9. The nozzle according to claim 8, characterized in that The first substrate comprises a first surface and a second surface arranged opposite to each other, the second surface has a groove structure, and the groove structure comprises at least one of an atomization groove, an air inlet groove and a liquid inlet groove; the second substrate is stacked with the first substrate; wherein The first substrate is conductive so as to be used as the heating body; the groove structure further comprises two spaced-apart receiving grooves, the first electrode and the second electrode are arranged in the two receiving grooves in a one-to-one correspondence, and the surfaces of the first electrode and the second electrode away from the bottom wall of the receiving groove are flush with the second surface; the second substrate has two lead holes, and the lead holes expose the corresponding electrodes; or The second substrate is conductive so as to be used as the heating body; the surface of the second substrate facing the first substrate has two spaced-apart receiving grooves, the first electrode and the second electrode are arranged in the two receiving grooves one by one, and the surfaces of the first electrode and the second electrode away from the bottom walls of the receiving grooves are flush with the surface of the second substrate facing the first substrate; the first substrate has two lead holes staggered with the groove structure, and the lead holes expose the corresponding electrodes.

10. The nozzle according to claim 2, characterized in that The material of the first substrate includes silicon with a resistivity less than 0.01 Ω·cm; the material of the second substrate includes an insulating glass sheet or silicon with a resistivity higher than 10 Ω·cm.

11. An atomizer, characterized in that: include: A liquid storage tank, used for storing aerosol generating matrix; A nozzle, wherein the nozzle is the nozzle according to any one of claims 1 to 10; The liquid inlet channel is connected to the liquid storage tank; A micro pump is connected to the air inlet channel and is used to supply air to the nozzle so as to atomize the aerosol generating matrix in the nozzle.

12. An electronic atomization device, characterized in that: include: Nebulizer; The atomizer is the atomizer according to claim 11; A power supply assembly is coupled to the atomizer and is used to provide power to the atomizer.

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