Nozzle, atomizer and electronic atomization device

Abstract

The invention discloses a nozzle, an atomizer and an electronic atomization device.The nozzle is used for atomizing aerosol to generate a matrix and comprises a spraying part and a heating body, and the spraying part is provided with an atomization cavity, an air inlet channel and a liquid inlet channel, 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 once to form aerosol; the atomizing cavity is provided with a mist outlet, so that aerosol flows out of the mist outlet; the heating body is integrated on the spraying part and used for conducting secondary atomization on the aerosol flowing out of the mist outlet through heating. The heating body is directly integrated in the structure of the nozzle to form the integrated atomizing nozzle, a redundant secondary atomizing device is not needed, and assembling is easy and convenient; the size of the nozzle is small, miniaturization of the whole machine is facilitated, and meanwhile, integration of heating viscosity reduction and heating evaporation functions of the aerosol generating matrix can be met.

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 method of atomizing the aerosol-generating matrix into an aerosol. However, the particle size of the aerosol generated by the current nozzle atomization is difficult to meet the target particle size requirements. Therefore, a secondary atomization system is provided in the mist outlet channel to perform secondary atomization on the aerosol generated by the nozzle atomization.

[0004] However, the secondary atomization system is large in size, which has a great impact on the size and shape of the entire atomization product. In addition, the secondary atomization system and the nozzle require additional assembly, which has a complex process and high assembly precision requirements. Summary of the invention

[0005] 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 such as large atomized particle size, large size of the secondary atomization system, need for additional assembly, complex procedures, and high assembly precision requirements.

[0006] In order to solve the above technical problems, the first technical solution provided in the present application is: a nozzle is provided for atomizing an aerosol-generating matrix, comprising an injection part and a heating body, the injection part having 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 is atomized once to form an aerosol; the atomizing chamber has a mist outlet, so that the aerosol flows out from the mist outlet; the heating body is integrated on the injection part, and is used to perform secondary atomization on the aerosol flowing out from the mist outlet by heating.

[0007] Wherein, the injection portion also has a mist outlet channel connected to the mist outlet; the heating body is arranged on the inner surface of the side wall of the mist outlet channel and / or the outer surface of the side wall of the mist outlet channel; or the heating body is a part of the side wall of the mist outlet channel.

[0008] Wherein, the length of the mist outlet channel is 0.1mm-20mm.

[0009] Wherein, the injection part includes a main body substrate and a cover substrate, the main body substrate has a first surface and a second surface arranged oppositely; the second surface has an atomization groove and an air inlet groove, a liquid inlet groove and a mist outlet groove respectively connected to the atomization groove; the cover substrate is covered on the second surface, and cooperates with the atomization groove, the air inlet groove, the liquid inlet groove and the mist outlet groove to form the atomization chamber, the air inlet channel, the liquid inlet channel and the mist outlet channel; wherein, the heater is arranged on the part of the first surface corresponding to the mist outlet groove, or the heater is arranged on the entire first surface; and / or the heater is arranged on the bottom surface of the mist outlet groove; and / or the heater is arranged on the surface of the cover substrate facing the mist outlet groove, or the heater is arranged on the surface of the cover substrate away from the mist outlet groove.

[0010] Among them, the heating body includes a first heating body and a second heating body, the first heating body and the second heating body are independent of each other and are arranged at intervals on the first surface; the first heating body corresponds to the position of the liquid inlet channel, and is used to heat the aerosol generating matrix flowing through the liquid inlet channel; the second heating body corresponds to the position of the mist outlet channel, and is used to heat the aerosol flowing through the mist outlet channel.

[0011] Wherein, the heating body includes a first heating body and a second heating body; the first heating body is located on the first surface and corresponds to the position of the liquid inlet channel, and is used to heat the aerosol generating matrix flowing through the liquid inlet channel; the second heating body is located on the bottom wall of the mist outlet groove, and is used to heat the aerosol flowing through the mist outlet channel.

[0012] Wherein, the first heating element and the second heating element have different resistance values.

[0013] Among them, the air inlet groove and the mist outlet groove are arranged on opposite sides of the atomization groove along the first direction; the two liquid inlet grooves are arranged on opposite sides of the atomization groove and the air inlet groove along the second direction; the width of the mist outlet groove gradually increases along the direction away from the atomization groove; one end of the air inlet groove connected to the atomization groove and one end of the liquid inlet groove connected to the atomization groove both form a necking structure.

[0014] Wherein, the heating body is arranged outside the mist outlet.

[0015] Among them, the nozzle also includes a supporting layer; the supporting layer cooperates with the injection part to form a heating chamber; the top wall of the heating chamber is opposite to the mist outlet and is arranged at an interval; the heating chamber is connected with the atomization chamber through the mist outlet; the heating chamber has an outlet, so that the aerosol after secondary atomization in the heating chamber flows out; the heating body is arranged on the supporting layer.

[0016] Wherein, the distance between the top wall of the heating chamber and the mist outlet is 0.5-10 mm.

[0017] In which, the surface of the supporting layer facing the mist outlet has a groove, and the groove cooperates with the outer surface of the injection part to form the heating chamber; the bottom wall and / or side wall of the groove has the outlet; the heating body is arranged on the surface of the supporting layer away from the mist outlet and / or the bottom surface of the groove.

[0018] Wherein, the injection part includes a main body substrate and a cover substrate, the main body substrate has a first surface and a second surface arranged oppositely; the second surface has an atomization groove and a fluid groove surrounding the atomization groove, and a plurality of liquid inlet grooves connecting the fluid groove and the atomization groove; the bottom wall of the atomization groove has a first through hole as an air inlet channel; the outer side wall of the fluid groove has a liquid inlet; the cover substrate is covered on the second surface; the cover substrate cooperates with the atomization groove to form the atomization chamber; the cover substrate cooperates with the liquid inlet groove and the fluid groove to form the liquid inlet channel; the cover substrate has a second through hole as the mist outlet ; or the injection portion includes a main body substrate and a cover substrate, the main body substrate has a first surface and a second surface arranged opposite to each other; the second surface has an atomization groove and a fluid groove surrounding the atomization groove, and a plurality of air inlet grooves connecting the fluid groove and the atomization groove; the bottom wall of the atomization groove has a first through hole as a liquid inlet channel; the outer wall of the fluid groove has an air inlet; a cover substrate is covered on the second surface; the cover substrate cooperates with the atomization groove to form the atomization chamber; the cover substrate cooperates with the air inlet groove and the fluid groove to form the air inlet channel; the cover substrate has a second through hole as the mist outlet.

[0019] Wherein, the heating body is a heating film; the width of the heating film is 10 μm-1000 μm, and the thickness of the heating film is 100 nm-10 μm.

[0020] Wherein, the material of the main substrate is silicon, glass or metal, and the material of the cover substrate is silicon, glass or metal.

[0021] 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.

[0022] In order to solve the above technical problems, the third technical solution provided in the present application is: to provide an electronic atomization device, including an atomizer and a power supply assembly; the atomizer is the atomizer described in any one of the above items; the power supply assembly is coupled to the atomizer to provide power to the atomizer.

[0023] Beneficial effects of the present application: Different from the prior art, the nozzle of the present application is used to atomize the aerosol generating matrix, including an injection part and a heating body, the injection part has 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 atomizes once to form an aerosol; the atomizing chamber has a mist outlet, so that the aerosol flows out from the mist outlet; the heating body is integrated on the injection part, and is used to perform secondary atomization on the aerosol flowing out from the mist outlet by heating. The present application integrates the heating body directly into the structure of the nozzle to form an integrated atomizing nozzle, which does not require an extra secondary atomizing device and is simple and convenient to assemble; the nozzle is small in size, which is convenient for miniaturization of the entire machine, and can also meet the integration of heating viscosity reduction and heating evaporation functions of the aerosol generating matrix. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] 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.

[0025] Figure 1 It is a schematic diagram of the structure of the electronic atomization device provided by the present application;

[0026] Figure 2 It is a structural schematic diagram of the atomizer provided by the present application;

[0027] Figure 3 This is a schematic diagram of the first structure of the nozzle provided in the first embodiment of the present application;

[0028] Figure 4 is a schematic diagram of the second structure of the nozzle provided in the first embodiment of the present application;

[0029] Figure 5 is a schematic diagram of the flow channel structure of the nozzle provided in the first embodiment of the present application;

[0030] Figure 6 This is a schematic diagram of the first structure of the main body substrate and the heating body provided in the first embodiment of the present application;

[0031] Figure 7 This is a second structural schematic diagram of the main body substrate and the heating body provided in the first embodiment of the present application;

[0032] Figure 8 This is a third structural schematic diagram of the nozzle provided in the first embodiment of the present application;

[0033] Fig. 9 This is a fourth structural schematic diagram of the nozzle provided in the first embodiment of the present application;

[0034] Fig.10 is a schematic diagram of the overall structure of the first structure of the nozzle provided in the second embodiment of the present application;

[0035] Fig.11 is a schematic diagram of the exploded structure of the first structure of the nozzle provided in the second embodiment of the present application;

[0036] Fig.12 is a side view of a second structure of a nozzle provided in the second embodiment of the present application;

[0037] Fig.13 is a schematic diagram of the overall structure of the third structure of the nozzle provided in the second embodiment of the present application;

[0038] Fig.14 is a schematic diagram of the overall structure of the fourth structure of the nozzle provided in the second embodiment of the present application;

[0039] Fig.15 This is a module schematic diagram of the power supply component provided in this application. DETAILED DESCRIPTION

[0040] 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.

[0041] 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.

[0042] 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.

[0043] The inventor of the present application has found that: for the current atomizing nozzle, when the atomized particle size is difficult to reach the target particle size requirement, there are two commonly used methods: one is to increase the pressure / flow rate during atomization (i.e., the nozzle working conditions) to enhance the atomization effect; the other is to add a secondary atomization system in the outer space of the nozzle atomization to reduce the atomized particle size. The first solution requires harsh working conditions and is usually abandoned. The second solution, in principle, is to add a secondary atomization system in the outer space of the nozzle atomization, and usually such a secondary atomization system is a macroscopic large-sized heating body, which is usually on the order of 5-10cm in size and requires secondary assembly. The secondary atomization system has the following problems: the secondary atomization system of the nozzle atomization is large in size, which has a great impact on the size and shape of the atomization product. At the same time, the secondary atomization system and the nozzle require additional assembly, and the process is complicated. The nozzle atomization center needs to be aligned with the center of the secondary atomization body, and the assembly accuracy requirements are high.

[0044] In order to solve the above problems, the present application provides a nozzle, an atomizer and an electronic atomization device.

[0045] See also Figure 1 , Figure 1 It is a schematic diagram of the structure of the electronic atomization device provided in this application.

[0046] 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.

[0047] 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.

[0048] 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.

[0049] See also Figures 2 to 5 , Figure 2 is a schematic diagram of the structure of the atomizer provided in this application, Figure 3 is a schematic diagram of the first structure of the nozzle provided in the first embodiment of the present application, Figure 4 is a schematic diagram of the second structure of the nozzle provided in the first embodiment of the present application, Figure 5 It is a schematic diagram of the flow channel structure of the nozzle provided in the first embodiment of the present application.

[0050] The atomizer 100 provided in the present application includes 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 matrix; the nozzle 10 is used to atomize the aerosol generating matrix; 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 matrix 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 heat and atomize the aerosol generating matrix 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 micropump 30. When the aerosol flows through the mist outlet channel 15, the heating body 102 corresponding to the mist outlet channel 15 performs secondary atomization heating on the aerosol, thereby reducing the particle size of the aerosol.

[0051] In one embodiment, if Figure 2 As shown, the nozzle 10 may include a connecting channel 14, which is arranged 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 arranged between the liquid storage tank 20 and the nozzle 10, and the liquid supply section 17 connects 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 this 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. It should be noted that the liquid supply amount of the nozzle 10 is the total mass of the aerosol-generating substrate heated by the nozzle 10 for the second atomization each time the user performs a suction action. 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.

[0052] 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.

[0053] like Figure 3 and Figure 4 As shown, the nozzle 10 provided in the present application includes an injection part 101 and a heating body 102, the injection part 101 has an atomizing chamber 13 and an air inlet channel 11, a liquid inlet channel 12 and a mist outlet channel 15 respectively connected to the atomizing chamber 13; the gas entering the atomizing chamber 13 from the air inlet channel 11 collides with the aerosol generating matrix entering the atomizing chamber 13 from the liquid inlet channel 12, and then atomization occurs once to form an aerosol; the atomizing chamber 13 has a mist outlet 131, so that the aerosol flows out from the mist outlet 131, and the mist outlet 131 is connected to the mist outlet channel 15. The heating body 102 is integrated on the injection part 101, and is used to perform secondary atomization on the aerosol flowing out of the mist outlet 131 by heating. The number of the liquid inlet channel 12 can be one or more, and the present application is described by taking multiple liquid inlet channels 12 as an example.

[0054] Specifically, the heating body 102 may also be disposed on the inner surface of the side wall of the mist outlet channel 15 and / or the outer surface of the side wall of the mist outlet channel 15; or the heating body 102 is a part of the side wall of the mist outlet channel 15. In other words, the heating body 102 may be disposed only on the inner surface of the side wall of the mist outlet channel 15 or the outer surface of the side wall of the mist outlet channel 15, or may be disposed on both the inner surface and the outer surface of the side wall of the mist outlet channel 15. The heating body 102 may also be a part of the side wall of the mist outlet channel 15, for example, by doping the silicon body substrate 104 to form a conductive area.

[0055] See also Figures 6 to 9 , Figure 6 This is a schematic diagram of the first structure of the main body substrate and the heating body provided in the first embodiment of the present application. Figure 7 This is a second structural schematic diagram of the main body substrate and the heating body provided in the first embodiment of the present application. Figure 8 is a third structural schematic diagram of the nozzle provided in the first embodiment of the present application, Fig. 9 This is a fourth structural schematic diagram of the nozzle provided in the first embodiment of the present application.

[0056] First embodiment:

[0057] like Figures 5 to 9 As shown, the spraying part 101 includes a main body substrate 104 and a cover substrate 103, the main body substrate 104 has a first surface 1041 and a second surface 1042 arranged opposite to each other; the second surface 1042 has an atomizing groove 132 and an air inlet groove 111, a liquid inlet groove 121 and a mist outlet groove 151 respectively connected to the atomizing groove 132. The cover substrate 103 is covered on the second surface 1042, and cooperates with the atomizing groove 132, the air inlet groove 111, the liquid inlet groove 121 and the mist outlet groove 151 to form an atomizing chamber 13, an air inlet channel 11, a liquid inlet channel 12 and a mist outlet channel 15.

[0058] In this embodiment, if Figure 5 As shown, the air inlet groove 111 and the mist outlet groove 151 are arranged on opposite sides of the atomizing groove 132 along the first direction, that is, the air inlet groove 111 and the mist outlet groove 151 are respectively arranged on both sides of the same direction of the first surface 1041. The two liquid inlet grooves 121 are arranged on opposite sides of the atomizing groove 132 and the air inlet groove 111 along the second direction. The first direction and the second direction are different directions, and can be specifically perpendicular to each other. Along the direction away from the atomizing groove 132, the width of the mist outlet groove 151 gradually increases to form a trapezoidal structure. The mist outlet 131 is located on the side wall of the mist outlet groove 151 and is connected to the atomizing groove 132.

[0059] The end where the air inlet groove 111 is connected to the atomizing groove 132 and the end where the liquid inlet groove 121 is connected to the atomizing groove 132 both form a constriction structure. The constriction structure can be understood as: at the positions where the air inlet groove 111 and the liquid inlet groove 121 are respectively connected to the atomizing groove 132, their widths are smaller than the widths at the positions away from the atomizing groove 132. In the present embodiment, the widths of the air inlet groove 111 and the liquid inlet groove 121 at the ends away from the atomizing groove 132 are significantly greater than the widths at the ends close to the atomizing groove 132. Furthermore, the liquid inlet groove 121 can also be configured to have an S-shaped corner structure, and the S-shaped corner structure extends from the opposite sides of the second direction of the body substrate 104 to the atomizing groove 132.

[0060] In this embodiment, the heating body 102 can be arranged on the portion of the first surface 1041 corresponding to the mist outlet groove 151, and only the mist outlet channel 15 is heated. The heating body 102 can also be arranged on the entire first surface 1041, and the air inlet channel 11, the liquid inlet channel 12 and the mist outlet channel 15 are all heated. The heating body 102 arranged on the entire first surface 1041 can heat the air, and can also heat the aerosol generating substrate flowing through the liquid inlet channel 12, and heat the aerosol flowing through the mist outlet channel 15.

[0061] In the present embodiment, the heating body 102 can be arranged on the bottom surface of the mist outlet groove 151, and / or the heating body 102 can be arranged on the surface of the cover substrate 103 facing the mist outlet groove 151, or the heating body 102 is arranged on the surface of the cover substrate 103 away from the mist outlet groove 151. It can be understood that the side wall, bottom wall of the mist outlet groove 151 and the part of the cover substrate 103 corresponding to the mist outlet groove 151 are the side walls of the mist outlet channel 15. The above arrangement methods can achieve the purpose of secondary atomization of the aerosol flowing through the mist outlet channel 15 to reduce the atomization particle size of the aerosol. The specific method can be selected according to needs, and the present application does not limit this. In the present embodiment, it is preferred to arrange the heating body 102 on the bottom surface of the mist outlet groove 151 or the first surface 1041 of the main body substrate 104 corresponding to the position of the mist outlet groove 151, so that the effect of secondary atomization heating is better.

[0062] like Figure 6 As shown, when the heating body 102 is arranged on the bottom surface of the mist outlet groove 151, the heating body 102 can be formed by arranging a plurality of heating columns 1021 to perform secondary atomization on the aerosol flowing through the mist outlet channel 15. The heating column 1021 can be a circular column, a square column, a polygonal column or an irregular column.

[0063] like Figure 7 As shown, when the heating body 102 is arranged on the bottom surface of the mist outlet groove 151 , the heating body 102 can also be formed by arranging a heating film 1022 with a certain width and length to heat the aerosol flowing through the mist outlet channel 15 .

[0064] In this embodiment, the length of the mist outlet channel 15 is 0.1 mm-20 mm, preferably 3 mm-10 mm, so as to improve the heating effect of the aerosol. If the length of the mist outlet channel 15 is too short, there is not enough time to heat the aerosol flowing through the mist outlet channel 15 to achieve secondary atomization; if the length of the mist outlet channel 15 is too long, the size of the nozzle 10 is too large.

[0065] In the third structure of this embodiment, Figure 8As shown, the heating body 102 includes a first heating body 1023 and a second heating body 1024, which are independent of each other and are arranged at intervals on the first surface 1041. The first heating body 1023 corresponds to the position of the liquid inlet channel 12, and is used to heat the aerosol generating matrix flowing through the liquid inlet channel 12; the second heating body 1024 corresponds to the position of the mist outlet channel 15, and is used to perform secondary atomization on the aerosol flowing through the mist outlet channel 15, so that the particle size of the aerosol after secondary atomization is smaller, so as to reach the target particle size. The heating body 102 arranged on the first surface 1041 can prevent the aerosol from directly contacting the heating body 102, thereby preventing damage to the heating body 102 or reducing the life of the heating body 102.

[0066] In the third structure of this embodiment, the first heating element 1023 and the second heating element 1024 can be set to the same structure or different structures. For example, the first heating element 1023 and the second heating element 1024 can both be set to heating films 1022, but the first heating element 1023 and the second heating element 1024 have different resistance values.

[0067] In the fourth structure of this embodiment, Fig. 9 As shown, the heating body 102 includes a first heating body 1023 and a second heating body 1024. The first heating body 1023 is located on the first surface 1041 and corresponds to the position of the liquid inlet channel 12, and is used to heat the aerosol generating substrate flowing through the liquid inlet channel 12. The second heating body 1024 is located on the bottom surface of the mist outlet groove 151, and is used to perform secondary heating and atomization on the aerosol flowing through the mist outlet channel 15, so that the particle size of the aerosol after the secondary atomization is smaller and reaches the target particle size. The second heating body 1024 arranged on the bottom surface of the mist outlet groove 151 will directly contact the aerosol, so that the heating efficiency of the aerosol generating substrate is higher, and the particle size of the aerosol can reach the target particle size faster.

[0068] In the fourth structure of the present embodiment, the first heating element 1023 and the second heating element 1024 can be set to the same structure or different structures, but the first heating element 1023 and the second heating element 1024 have different resistance values. For example, the first heating element 1023 and the second heating element 1024 can both be set to a heating film 1022. For another example, the first heating element 1023 is a heating film 1022, and the second heating element 1024 is a heating element integrated into the mist outlet groove 151 through a processing technology, and the processing technology may include deposition, evaporation, electroplating, etc., to form an integrated structure of the second heating element 1024 and the injection part 101. At the same time, the second heating element 1024 can also be formed by doping on the main substrate 104 of silicon material. It is selected according to the needs, and this application does not limit it.

[0069] It should be noted that if Figure 7 and Fig. 9 As shown, when the second heating element 1024 is a heating film 1022 and is formed on the bottom surface of the mist outlet groove 151, the heating film 1022 has a first electrode 1022a and a second electrode 1022b to electrically connect to an external power supply unit, for example, to electrically connect to the power supply assembly 200. Two lead-out holes 1032 can be correspondingly provided on the cover substrate 103 to lead out the first electrode 1022a and the second electrode 1022b through a wire. Of course, the first electrode 1022a and the second electrode 1022b can also be led out from the port of the mist outlet channel 15 away from the mist outlet 131.

[0070] See also Figures 10 to 14 , Fig.10 is a schematic diagram of the overall structure of the first structure of the nozzle provided in the second embodiment of the present application, Fig.11 is a schematic diagram of the exploded structure of the first structure of the nozzle provided in the second embodiment of the present application, Fig.12 is a side view of a second structure of a nozzle provided in the second embodiment of the present application, Fig.13 is a schematic diagram of the overall structure of the third structure of the nozzle provided in the second embodiment of the present application; Fig.14 It is a schematic diagram of the overall structure of the fourth structure of the nozzle provided in the second embodiment of the present application.

[0071] Second embodiment:

[0072] In this embodiment, the heating body 102 is arranged outside the mist outlet 131. Among them, the nozzle 10 also includes a support layer 16, and the support layer 16 cooperates with the injection part 101 to form a heating chamber 161. The top wall of the heating chamber 161 is arranged opposite to the mist outlet 131 and is arranged at intervals; the heating body 102 is arranged on the support layer 16. The heating chamber 161 is connected to the atomization chamber 13 through the mist outlet 131. The heating chamber 161 has an outlet 1611, so that the aerosol after secondary atomization in the heating chamber 161 can flow out from the outlet 1611. It can be understood that the heating body 102 can also be arranged on the plane where the port of the mist outlet 131 is located.

[0073] In this embodiment, the distance between the top wall of the heating chamber 161 and the mist outlet 131 is 0.5-10 mm, preferably 1-5 mm, so that there can be a gap between the top wall of the heating chamber 161 and the mist outlet 131 that allows the aerosol after secondary atomization to flow out. It can be understood that if the distance between the top wall of the heating chamber 161 and the mist outlet 131 is too large, the overall size of the nozzle 10 will be too large, and if the distance is too small, the aerosol after secondary atomization will flow out too slowly, affecting the user experience.

[0074] Specifically, the surface of the support layer 16 facing the mist outlet 131 has a groove 162, and the groove 162 cooperates with the outer surface of the injection portion 101 to form a heating chamber 161, and the bottom wall and / or side wall of the groove 162 has an outlet 1611. For example, a groove 162 can be opened on the side of the support layer 16 close to the cover substrate 103 to form a heating chamber 161, and a notch 1621 is provided on the side wall of the groove 162, and the notch 1621 forms the outlet 1611. The heating body 102 is arranged on the surface of the support layer 16 away from the mist outlet 131 and / or the bottom surface of the groove 162.

[0075] In this embodiment, if Fig.11 As shown, the injection unit 101 includes a main body substrate 104 and a cover substrate 103, and the main body substrate 104 has a first surface 1041 and a second surface 1042 arranged opposite to each other. The second surface 1042 has an atomizing groove 132 and a fluid groove 122 surrounding the atomizing groove 132, and a plurality of liquid inlet grooves 121 connecting the fluid groove 122 and the atomizing groove 132. The bottom wall of the atomizing groove 132 has a first through hole 133 as an air inlet channel 11. The outer side wall of the fluid groove 122 has a liquid inlet 123, and the liquid inlet 123 is connected to the fluid groove 122. Through the liquid inlet 123, the aerosol generating matrix in the liquid storage tank 20 can enter the fluid groove 122, and the atomizing groove 132 is atomized through the plurality of liquid inlet grooves 121.

[0076] The cover substrate 103 is covered on the second surface 1042, and the cover substrate 103 cooperates with the atomization groove 132 to form the atomization chamber 13. The cover substrate 103 has a second through hole 1031 as a mist outlet 131, and the mist outlet 131 is connected to the atomization chamber 13. The cover substrate 103 cooperates with the liquid inlet groove 121 and the fluid groove 122 to form a liquid inlet channel 12. The aerosol generating matrix enters the atomization chamber 13 through the liquid inlet channel 12, and collides with the high-speed airflow entering the air inlet channel 11 to be atomized to form an aerosol. The aerosol flows out from the mist outlet 131 into the heating chamber 161, and is atomized and heated for a second time by the heating body 102 arranged on the support layer 16, so that the particle size of the aerosol becomes smaller.

[0077] In this embodiment, the heating body 102 may also be disposed on the surface of the cover substrate 103 close to the support layer 16 , and may also perform secondary atomization heating on the aerosol.

[0078] In this embodiment, if Fig.12As shown, the groove 162 can also be opened on the surface of the cover substrate 103 close to the support layer 16, and the opening of the groove 162 faces the support layer 16. The other structures are the same as the structure of the groove 162 opened on the support layer 16. The groove 162 cooperates with the cover substrate 103 to form a heating chamber 161; the side wall of the groove 162 has an outlet 1611. For example, the side wall of the groove 162 has a notch 1621, and the notch 1621 forms the outlet 1611.

[0079] In this embodiment, the functions of the air inlet groove 111 and the liquid inlet 123 can also be interchanged, that is, liquid is introduced through the first through hole 133 opened in the center of the main substrate 104, and air is introduced through the liquid inlet 123 opened on the outer wall of the fluid groove 122, and the functions of synchronous air and liquid introduction can also be achieved.

[0080] In this embodiment, the heating body 102 may be a heating film 1022 ; the width of the heating film 1022 is 10 μm-1000 μm, and the thickness of the heating film 1022 is 100 nm-10 μm, so as to ensure the secondary atomization effect of the aerosol without increasing the volume of the nozzle 10 .

[0081] like Fig.13 and Fig.14 As shown, the support layer 16 may further include a plurality of third through holes 163, which may be used to assist the mist outlet channel 15 so as to allow the heated aerosol to generate the matrix to flow out. The third through holes 163 may be round holes or strip holes. The third through holes 163 may be offset from the heating body 102, or may pass through the heating body 102. For example, Fig.14 As shown, when the heating body 102 is a whole layer of heating film, a plurality of third through holes 163 may pass through the heating body 102 .

[0082] In this embodiment, the material of the main substrate 104 can be silicon, glass or metal, and the material of the cover substrate 103 can also be silicon, glass or metal. The nozzle 10 is manufactured using a micro-nano processing technology, and the material of the nozzle 10 includes non-metallic materials such as silicon, glass or metal materials. The air inlet channel 11, the liquid inlet channel 12 and the mist outlet channel 15 can be formed by an etching process of silicon, glass or metal, or can be formed by electroplating metal. For example, an integrated structure of the heating body 102 and the injection part 101 is formed by deposition, evaporation, electroplating and other processes on the main substrate 104 of silicon, glass or metal. That is, the heating body 102 is directly integrated on the injection part 101 using a micro-nano processing technology.

[0083] It should be noted that when a low-viscosity medium is atomized, there is no need to use a heating and viscosity reduction solution, and only the integrated heating body 102 for temperature-controlled evaporation disposed on the first surface 1041 of the main substrate 104 corresponds to the mist outlet channel 15. For example, when the liquid viscosity is less than 5 Pa.s, there is no need to heat and reduce the viscosity of the aerosol-generating matrix.

[0084] See also Fig.15 , Fig.15 This is a module schematic diagram of the power supply component provided in this application.

[0085] In one embodiment, the power supply assembly 200 may further include a processor 210 and a sensor 250. The processor 210 is electrically connected to the sensor 250, and receives detection information from the sensor 250, which includes temperature information and viscosity information of the aerosol generating substrate, thereby controlling the nozzle 10 of the atomizer 100 to work according to the temperature information or viscosity information, including controlling the heating body 102 to heat the aerosol generating substrate flowing through the liquid inlet channel 12. The power supply assembly 200 also includes: a memory 220, a battery 230, a controller 240, etc. The memory 220 stores parameters for controlling the operation of the atomizer 100.

[0086] Specifically, the processor 210 is used to control the operation of the power supply assembly 200, and the processor 210 can also be called a CPU (Central Processing Unit). The processor 210 is electrically connected to the controller 240 so that the controller 240 can control different components in the power supply assembly 200. Specifically, the controller 240 can specifically include a nozzle control unit 241, a voltage control unit 242, and a heating control unit 243, wherein the voltage control unit 242 can be electrically connected to the processor 210 and the battery 230, and the battery 230 can be controlled by the voltage control unit 242 to start or stop supplying power, and to control the output voltage of the battery 230. The nozzle control unit 241 can be electrically connected to the voltage control unit 242 and the nozzle 10, so that the nozzle control unit 241, under the drive of the voltage control unit 242, further controls the nozzle 10 to start or stop running, and controls the micro pump 30 in the nozzle 10 to run at different speeds, such as the first speed, the second speed, or the third speed, etc.; or controls the opening degree of the nozzle 10 to control the liquid supply rate and / or liquid supply amount of the nozzle 10. The heating control unit 243 can be electrically connected to the processor 210, and the heating control unit 243 controls the heating body 102 to heat and operate at different powers. For example, the heating control unit 243 controls the heating body 102 to heat and atomize the aerosol generating matrix for the user to inhale. Optionally, the nozzle control unit 241, the voltage control unit 242 and the heating control unit 243 can be a microcontroller, etc., and this application does not limit this.

[0087] In one embodiment, the processor 210 may be an integrated circuit chip with signal processing capabilities. The processor 210 may also be a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components. The general-purpose processor may be a microprocessor, or the processor 210 may also be any conventional processor, etc.

[0088] The memory 220 is electrically connected to the processor 210, and the memory 220 can store the working parameters for controlling the atomizer 100. The memory 220 can be a RAM, a ROM, or other types of storage devices. Specifically, the memory 220 can include one or more computer-readable storage media (not shown), and the computer-readable storage media can be non-transient. The memory 220 can also include a high-speed random access memory, and a non-volatile memory, such as one or more disk storage devices, flash memory storage devices.

[0089] The sensor 250 is electrically connected to the processor 210. The sensor 250 is used to detect the temperature or viscosity of the aerosol generating substrate. It can detect the ambient temperature to control the heating body 102 to heat or not heat the aerosol generating substrate. When the temperature or viscosity of the aerosol generating substrate or the temperature of the aerosol generated by a single atomization does not reach the preset temperature or viscosity, the heating body 102 is controlled to heat. The sensor 250 can be a microphone.

[0090] The battery 230 is used to provide electrical energy for the operation of the atomizer 100, so that the atomizer 100 can atomize the aerosol-generating matrix to form an aerosol. The controller 240 is used to control the operation of the atomizer 100. The power supply assembly 200 may also include other components such as a battery holder (not shown), a control circuit board (not shown), etc.

[0091] The atomizer 100 and the power supply assembly 200 of the present application may be detachably connected or may be an integral structure that cannot be detached. For example, the atomizer 100 and the power supply assembly 200 share a housing 40, and the present application does not impose any limitation on this.

[0092] The nozzle disclosed in the present application is used for atomizing an aerosol-generating substrate, and includes an injection part and a heating body. The injection part has 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 substrate entering the atomizing chamber from the liquid inlet channel to form an aerosol; the atomizing chamber has a mist outlet, so that the aerosol flows out from the mist outlet; the heating body is integrated on the injection part, and is used to perform secondary atomization on the aerosol flowing out from the mist outlet by heating. The present application directly integrates the heating body into the structure of the nozzle to form an integrated atomizing nozzle, which does not require an extra secondary atomizing device and is simple and convenient to assemble; the nozzle is small in size, which is convenient for miniaturization of the entire machine, and can also meet the integration of heating viscosity reduction and heating evaporation functions of the aerosol-generating substrate.

[0093] 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 for atomizing an aerosol-generating substrate, 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 substrate entering the atomizing chamber from the liquid inlet channel, and then atomizes once to form an aerosol; the atomizing chamber has a mist outlet, so that the aerosol flows out from the mist outlet; A heating body is integrated on the injection portion and is used for performing secondary atomization on the aerosol flowing out of the mist outlet by heating.

2. The nozzle according to claim 1, characterized in that The injection portion also has a mist outlet channel connected to the mist outlet; the heating body is arranged on the inner surface of the side wall of the mist outlet channel and / or the outer surface of the side wall of the mist outlet channel; or the heating body is a part of the side wall of the mist outlet channel; wherein the length of the mist outlet channel is 0.1mm-20mm.

3. The nozzle according to claim 2, characterized in that The injection unit comprises: The main body substrate has a first surface and a second surface arranged opposite to each other; the second surface has an atomizing groove and an air inlet groove, a liquid inlet groove and a mist outlet groove respectively connected to the atomizing groove; A substrate is provided, which is provided on the second surface and cooperates with the atomizing groove, the air inlet groove, the liquid inlet groove and the mist outlet groove to form the atomizing cavity, the air inlet channel, the liquid inlet channel and the mist outlet channel; Wherein, the heating body is arranged on a portion of the first surface corresponding to the mist outlet groove, or the heating body is arranged on the entire first surface; and / or The heating body is arranged on the bottom surface of the mist outlet groove; and / or The heating body is arranged on a surface of the cover substrate facing the mist outlet groove, or the heating body is arranged on a surface of the cover substrate facing away from the mist outlet groove.

4. The nozzle according to claim 3, characterized in that The heating body includes a first heating body and a second heating body; The first heating element and the second heating element are independent of each other and are arranged at intervals on the first surface; the first heating element corresponds to the position of the liquid inlet channel, and is used to heat the aerosol generating substrate flowing through the liquid inlet channel; the second heating element corresponds to the position of the mist outlet channel, and is used to heat the aerosol flowing through the mist outlet channel; or The first heating element is located on the first surface and corresponds to the position of the liquid inlet channel, and is used to heat the aerosol generating substrate flowing through the liquid inlet channel; the second heating element is located on the bottom wall of the mist outlet groove, and is used to heat the aerosol flowing through the mist outlet channel; Wherein, the first heating element and the second heating element have different resistance values.

5. The nozzle according to claim 3, characterized in that The air inlet groove and the mist outlet groove are arranged on opposite sides of the atomization groove along a first direction; the two liquid inlet grooves are arranged on opposite sides of the atomization groove and the air inlet groove along a second direction; the width of the mist outlet groove gradually increases along the direction away from the atomization groove; one end of the air inlet groove connected to the atomization groove and one end of the liquid inlet groove connected to the atomization groove both form a necking structure.

6. The nozzle according to claim 1, characterized in that The heating body is arranged outside the mist outlet; The nozzle further comprises a supporting layer; the supporting layer cooperates with the ejection part to form a heating chamber; the top wall of the heating chamber is opposite to the mist outlet and is arranged at a distance; the heating chamber is connected with the atomization chamber through the mist outlet; the heating chamber has an outlet, so that the aerosol after secondary atomization in the heating chamber flows out; the heating body is arranged on the supporting layer; Wherein, the distance between the top wall of the heating chamber and the mist outlet is 0.5-10 mm.

7. The nozzle according to claim 6, characterized in that The surface of the supporting layer facing the mist outlet has a groove, and the groove cooperates with the outer surface of the injection part to form the heating chamber; the bottom wall and / or side wall of the groove has the outlet; the heating body is arranged on the surface of the supporting layer away from the mist outlet and / or the bottom surface of the groove.

8. The nozzle according to claim 7, characterized in that The injection unit comprises: The main body substrate has a first surface and a second surface arranged opposite to each other; the second surface has an atomization groove and a fluid groove surrounding the atomization groove, and a plurality of liquid inlet grooves connecting the fluid groove and the atomization groove; the bottom wall of the atomization groove has a first through hole as an air inlet channel; the outer side wall of the fluid groove has a liquid inlet; A covering substrate is provided on the second surface; the covering substrate cooperates with the atomizing groove to form the atomizing chamber; the covering substrate cooperates with the liquid inlet groove and the fluid groove to form the liquid inlet channel; the covering substrate has a second through hole as the mist outlet; or The injection unit comprises: The main body substrate has a first surface and a second surface arranged opposite to each other; the second surface has an atomization groove and a fluid groove surrounding the atomization groove, and a plurality of air inlet grooves connecting the fluid groove and the atomization groove; the bottom wall of the atomization groove has a first through hole as a liquid inlet channel; the outer side wall of the fluid groove has an air inlet; A cover substrate is provided, which is covered on the second surface; the cover substrate cooperates with the atomization groove to form the atomization chamber; the cover substrate cooperates with the air inlet groove and the fluid groove to form the air inlet channel; the cover substrate has a second through hole as the mist outlet.

9. The nozzle according to claim 1, characterized in that The heating body is a heating film; the width of the heating film is 10 μm-1000 μm, and the thickness of the heating film is 100 nm-10 μm.

10. The nozzle according to claim 3 or 8, characterized in that The material of the main substrate is silicon, glass or metal, and the material of the cover substrate is silicon, glass or metal.

11. An atomizer, characterized in that: include: A liquid storage tank, used for storing aerosol-generating substrates; 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.

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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