Aerosol generating device with display window

Abstract

The utility model discloses an aerosol generating device with a display window, the aerosol generating device comprises a shell, a fixing piece and a display assembly, the shell is provided with a first display window and a second display window, and the first display window is located at a first side face of the shell. The second display window penetrates through the first side face, the second side face and the third side face of the shell, and the second side face of the shell is connected with the first side face of the shell and the third side face of the shell. The fixing piece is located in the shell. The display assembly comprises a flexible printed circuit board with a circuit track, a plurality of light-emitting elements and a flexible display layer. The flexible printed circuit board wraps the side face of the fixing piece. The flexible display layer corresponds to the first display window and the second display window in position. The information can be displayed in different windows, a user can conveniently recognize and know the information of the electronic cigarette, assembly is convenient, and the production efficiency is improved.

Description

Technical Field

[0001] The present application relates to the field of electronic atomization technology, and in particular to an aerosol generating device with a display window. Background Art

[0002] An aerosol generating device is an electronic device that can use electric heating to atomize aerosol-forming substances such as tobacco oil and liquid medicine stored in it into aerosols. Currently, aerosol generating devices on the market usually include structures such as an atomizer core, a power supply component, and a storage chamber. Among them, the storage chamber generally contains aerosol-forming substances. The aerosol-forming substances in the storage chamber can be transferred to the atomizer core through capillary action and other methods. When the user uses the aerosol generating device for inhalation, the power supply component provides electrical energy to the atomizer core, so that the atomizer core can be powered on and heated. The heat generated by the power supply and heating of the aerosol core can be used to atomize the aerosol-forming substances transferred to the atomizer core into an aerosol that can be inhaled by the user.

[0003] As an aerosol generating device is used continuously, the power supply and the amount of aerosol-forming substance in the aerosol generating device gradually decrease. To facilitate users to readily and intuitively know the remaining power supply and the remaining amount of aerosol-forming substance in the aerosol generating device, the aerosol generating device is usually equipped with a display screen on the outside that can display information such as the remaining power supply and the remaining amount of aerosol-forming substance. However, current aerosol generating devices with display screens generally have the following problems:

[0004] Since the display screen used is usually a display screen with a rigid glass substrate, the display screen can usually only be installed on one of the outer surfaces of the aerosol generating device (such as the front, back or side of the aerosol generating device). Moreover, in order to facilitate the user's carrying and use, the volume of the aerosol generating device is generally made relatively small, which leads to the problem of a small display area of ​​the aerosol generating device. With the continuous development of electronic atomization technology, more and more information needs to be displayed on the display screen. Therefore, how to increase the display area of ​​the aerosol generating device so that the aerosol generating device can display more information is a technical problem that needs to be urgently solved by technical personnel in this field. Utility Model Content

[0005] The main purpose of this application is to provide an aerosol generating device with a display window, aiming to solve the technical problem of small display area existing in existing aerosol generating devices with display screens.

[0006] To achieve the above objectives, the present application provides an aerosol generating device with a display window, comprising a housing, a fixing member, and a display assembly, wherein the housing is provided with a first display window and a second display window, wherein the first display window is located on a first side surface of the housing; the second display window passes through the first side surface, the second side surface, and the third side surface of the housing, and the second side surface of the housing is connected to the first side surface and the third side surface of the housing; the fixing member is located within the housing;

[0007] The display component includes a flexible printed circuit board having a circuit track, a plurality of light-emitting elements and a flexible display layer. The flexible printed circuit board is covered on the side of the fixing member. The flexible printed circuit board has a first surface along its thickness direction; the light-emitting elements are distributed at intervals on the first surface and are electrically connected to the circuit track; the flexible display layer is fixedly stacked on the first surface and covers each of the light-emitting elements. The flexible display layer has a plurality of light-transmitting areas, each of which is arranged opposite to at least one light-emitting element, and the area of ​​the flexible display layer other than the light-transmitting area is a light-shielding area; the flexible display layer corresponds to the position of the first display window and the second display window.

[0008] Preferably, the shell includes a first end cover, a second end cover and a side cover, the fixing member is located between the first end cover and the second end cover, the first end of the fixing member is connected to the first end cover, and / or the second end of the fixing member is connected to the second end cover; the first end of the side cover is connected to the first end cover, and the second end of the side cover is connected to the second end cover.

[0009] Preferably, the fixing member includes a fixing tube, a first end of the fixing tube is connected to the first end cover, and the flexible printed circuit board is covered on a side surface of the fixing tube.

[0010] Preferably, the aerosol generating device further comprises a support seat, which is located between the fixed tube and the second end cover, and the second end of the fixed tube is connected to the support seat; the first end cover, the second end cover and the side cover are an integrally formed structure.

[0011] Preferably, the aerosol generating device also includes a liquid storage component, which includes a liquid storage tube, a first elastic sealing seat and a second elastic sealing seat. The fixed tube includes a tube body portion, and the end of the tube body portion facing the first end cover extends along the direction of the center line of the tube body portion to form an end wall portion, and the end wall portion abuts against the first end cover; the liquid storage tube is located in the tube body portion, the first elastic sealing seat cover is arranged at the first end of the tube body portion and elastically abuts against the end wall portion, and the second elastic sealing seat cover is arranged at the second end of the tube body portion and is connected to the support seat.

[0012] Preferably, a fixing groove is provided on a side surface of the fixing tube, and the flexible printed circuit board is at least partially inserted into the fixing groove.

[0013] Preferably, the display assembly is provided with a positioning notch, the fixing groove is provided with a positioning protrusion, and the positioning protrusion is inserted into the positioning notch.

[0014] Preferably, the display assembly further includes a first adhesive layer, the flexible printed circuit board further includes a second surface disposed opposite to the first surface, and the first adhesive layer is disposed on the second surface and adhered to the fixing tube.

[0015] Preferably, the aerosol generating device further comprises a light-transmitting protective cover, which covers the second display window and is connected to the housing.

[0016] Preferably, the aerosol generating device further comprises a light-transmitting protective sheet, which covers the first display window and is connected to the housing.

[0017] Compared with the prior art, the present invention has the following advantages:

[0018] In the technical solution of the present application, firstly, the shell is provided with a first display window and a second display window, and the information displayed by the display component can be displayed from the first display window and the second display window area, so that the aerosol generating device can display more information to the user, and different information can be displayed in different windows, which is convenient for the user to identify and understand the information of the electronic cigarette. Secondly, since a plurality of light-emitting elements are distributed on the first surface of the flexible printed circuit board, a flexible display layer having a plurality of light-transmitting areas is fixed on the first surface of the flexible printed circuit board and covers each light-emitting element, so that the plurality of light-emitting elements can be encapsulated between the flexible display layer and the flexible printed circuit board. When the plurality of light-emitting elements are connected to an external power supply through the circuit traces of the flexible printed circuit board, the plurality of light-emitting elements are powered on and emit light, and the light emitted can be displayed in the light-transmitting area of ​​the flexible display layer. That is, the light-transmitting area of ​​the flexible display layer can be used as the light display area of ​​the display component, thereby realizing the display function of the display component.

[0019] Since both the flexible display layer and the flexible printed circuit board are flexible structures, the display assembly formed by laminating the flexible display layer and the flexible printed circuit board is also a flexible structure and can be bent. Thus, when the display assembly provided by the present application is applied to an aerosol generating device, based on the bendable nature of the display assembly, the display assembly can be simultaneously covered on multiple outer surfaces of the fixing member by winding, so that the light display area of ​​the display assembly can be distributed on multiple outer surfaces of the aerosol generating device, thereby increasing the display area of ​​the aerosol generating device and enabling the aerosol generating device to display more information to the user. Finally, since the flexible display layer corresponds to the position of the first display window and the second display window, only one display assembly is required to realize multi-area display information, thereby facilitating assembly, improving production efficiency, and avoiding the problem of low efficiency caused by assembling multiple display assemblies. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. 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 the structures shown in these drawings without paying any creative work.

[0021] Figure 1 A perspective view of an embodiment of an aerosol generating device with a display window according to the present application;

[0022] Figure 2 for Figure 1 A perspective view of the aerosol generating device with a display window without the light-transmitting protective cover;

[0023] Figure 3 for Figure 1 An exploded view of the aerosol generating device shown with a display window;

[0024] Figure 4 for Figure 1 A cross-sectional view of the aerosol generating device with a display window is shown;

[0025] Figure 5 for Figure 1 A perspective view of the housing of the aerosol generating device with a display window;

[0026] Figure 6 for Figure 1 A schematic structural diagram of the aerosol generating device with a display window after the display component is unfolded;

[0027] Figure 7 for Figure 6 Cross-sectional view along AA direction;

[0028] Figure 8 A partial cross-sectional view showing a component according to an embodiment of the present application;

[0029] Figure 9 This is a front view schematic diagram of a flexible printed circuit board in one embodiment of the present application;

[0030] Figure 10 This is a schematic diagram of the back side of a flexible printed circuit board according to an embodiment of the present application;

[0031] Figure 11 This is a front view schematic diagram of a flexible printed circuit board according to another embodiment of the present application;

[0032] Figure 12 This is a schematic plan view of a flexible display layer in one embodiment of the present application;

[0033] Figure 13 This is a schematic plan view of a flexible display layer and a flexible diffusion layer combined in one embodiment of the present application;

[0034] Figure 14 Schematic diagram of a flexible light-shielding layer in one embodiment of the present application. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0036] It should be noted that if the embodiments of the present application involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0037] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present application, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if "and / or", "and / or" or "and / or" appear in the full text, its meaning includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme in which A and B are satisfied at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0038] Please refer to Figure 1-Figure 5 One embodiment of the present application provides an aerosol generating device with a display window, which includes a mouthpiece 10, a housing 20, a fixing member 30, a liquid storage assembly 40, an atomizing core 50, a display assembly 60, a controller 70, and a battery 80. The mouthpiece 10 is connected to the housing 20 for the user to inhale the aerosol. The housing 20 includes a first end cap 201, a second end cap 202, and a side cap 203. The first end cap 201 is connected to the mouthpiece 10, the first end of the side cap 203 is connected to the first end cap 201, and the second end of the side cap 203 is connected to the second end cap 202. The first end cap 201 and the second end cap 202 are arranged opposite each other and are respectively located at two ends of the housing 20.

[0039] The side cover 203 is provided with a first display window 204, which is located on the first side of the housing 20. The first side of the housing 20 is positioned opposite the third side of the housing 20. The first end cover 201, the second end cover 202, and the side cover 203 form a second display window 205. The second display window 205 extends through the first, second, and third sides of the housing 20. The second side of the housing 20 is connected to the first and third sides of the housing 20. Preferably, the first end cover 201, the second end cover 202, and the side cover 203 are integrally formed, which not only facilitates assembly and improves production efficiency, but also provides a more reliable structure.

[0040] The fixing member 30 is located in the housing 20 and between the first end cover 201 and the second end cover 202. The fixing member 30 is connected to the first end cover 201. Preferably, the aerosol generating device also includes a support seat 91, and the fixing member 30 is a fixing tube, the first end of the fixing tube is connected to the first end cover 201, and the second end of the fixing tube is connected to the support seat 91. A fixing groove 301 is provided on the side of the fixing tube, and the fixing groove 301 is provided with a positioning protrusion 302. The support seat 91 is located between the fixing tube and the second end cover 202. In one embodiment, the support seat 91 may not be required, and the second end of the fixing member 30 is connected to the second end cover 202.

[0041] The liquid storage assembly 40 includes a liquid storage tube 401, a first elastic sealing seat 402, and a second elastic sealing seat 403. The fixed tube includes a tube body 303, and the fixing groove 301 is located on the side of the tube body 303. The end of the tube body 303 facing the first end cap 201 extends along the direction of the center line of the tube body 303 to form an end wall portion 304. The end wall portion 304 abuts the first end cap 201, thereby making the overall structure more reliable. The liquid storage tube 401 is located in the tube body 303. A porous liquid absorption column 404 is inserted into the liquid storage tube 401. The porous liquid absorption column 404 is used to absorb the aerosol generating matrix. The porous liquid absorption column 404 can be porous foam or fiber, etc. The first elastic sealing seat 402 is covered on the first end of the tube body 303 and elastically abuts the end wall portion 304, thereby providing sealing performance. The second elastic sealing seat 403 is covered on the second end of the tube body 303 and is connected to the support seat 91.

[0042] The atomizing core 50 includes a liquid guide 501 and an electric heating element 502. The liquid guide 501 is located in the porous liquid absorbing column 404 and is used to conduct the aerosol generating matrix in the porous liquid absorbing column 404 to the electric heating element 502. The liquid guide 501 can be made of materials such as cotton or porous ceramics, as long as it can adsorb the aerosol generating matrix. It is understandable that the aerosol generating matrix can be formed by combining propylene glycol, glycerol and flavors in a certain ratio. The aerosol generating matrix is ​​a prior art and its composition is not described here. The electric heating element 502 is electrically connected to the controller 70. The controller 70 is electrically connected to the battery 80 to control the battery 80 to power the electric heating element 502, so that the electric heating element 502 generates heat to atomize the aerosol generating matrix to form an aerosol. Among them, the electric heating element 502 can be an electric heating net or an electric heating wire.

[0043] The display assembly 60 is provided with a positioning notch 601, into which the positioning protrusion 302 is inserted, thus preventing displacement during assembly. Specifically, the display assembly 60 includes a flexible printed circuit board 1, multiple light-emitting elements 2, and a flexible display layer 3. The flexible printed circuit board 1 is wrapped around the side of the fixing member 30, that is, the flexible printed circuit board is wrapped around the side of the fixing tube, and the flexible printed circuit board is inserted into the fixing groove 301. Therefore, it is not only easy to assemble, but also easy to fit in place, improving production efficiency.

[0044] The flexible printed circuit board 1 has a circuit trace 14 and a first surface 11 along its thickness. A plurality of light-emitting elements 2 are spaced apart and electrically connected to the circuit trace 14 on the first surface 11 of the flexible printed circuit board 1. A flexible display layer 3 is fixedly laminated on the first surface 11 of the flexible printed circuit board 1 and covers each of the light-emitting elements 2. The flexible display layer 3 corresponds to the positions of the first display window 204 and the second display window 205. The flexible display layer 3 has a plurality of light-transmitting regions 31, each of which is located opposite at least one light-emitting element 2. The areas of the flexible display layer 3 other than the light-transmitting regions 31 are light-shielding regions 32.

[0045] In this embodiment, those skilled in the art will understand that the flexible printed circuit board 1, also known as an FPC (Flexible Printed Circuit, FPC) board, is a flexible circuit board printed with circuit tracks 14, which has the advantages of good flexibility, light weight, and thin thickness. In a specific manufacturing process, the required flexible printed circuit board 1 can be obtained by printing the circuit tracks 14 on a flexible film, wherein the flexible film can be a polymer material with high performance (such as excellent heat resistance, chemical stability and flexibility) such as polyimide film and polyester film.

[0046] In this embodiment, the light-emitting element 2 can be a component that can emit light when powered, such as an LED lamp bead. In some optional embodiments, the light-emitting element 2 can be an LED lamp bead with dimensions of 0.5-1.5 mm in length, 0.2-0.8 mm in width, and 0.1-0.8 mm in thickness. Preferably, the light-emitting element 2 can be a model 0402 LED lamp bead, which has dimensions of 1.0 mm in length, 0.5 mm in width, and 0.4 mm in thickness. After repeated testing, when the display assembly 60 provided in this embodiment uses this model of LED lamp bead as the light-emitting element 2, the display assembly 60 can achieve better display effects and higher quality reliability than LED lamp beads of other dimensions. The light-emitting element 2 can be fixed to the first surface 11 of the flexible printed circuit board 1 by welding, bonding (e.g., bonding with insulating glue or conductive glue), etc., and is electrically connected to the circuit traces 14 of the flexible printed circuit board 1.

[0047] In this embodiment, the material of the flexible display layer 3 can be a flexible material such as polyimide (PI), polyethylene terephthalate (PET), polyethylene phthalate (PEN), liquid crystal polymer (LCP), polyvinyl alcohol (PVA), polydimethylsiloxane (PDMS), etc., as long as it can meet the use requirements. This embodiment does not impose any specific restrictions on the specific material of the flexible display layer 3. Among them, when the flexible display layer 3 is made of a transparent flexible material, a light-transmitting area 31 and a light-shielding area 32 can be formed on the flexible display layer 3 by applying a light-shielding ink or the like. For example, when the flexible display layer 3 is a transparent polyimide film, a light-shielding ink can be applied to the surface of the polyimide film in a predetermined manner. The area of ​​the polyimide film coated with the light-shielding ink can be regarded as the light-shielding area 32 of the flexible display layer 3, and the area of ​​the polyimide film not coated with the light-shielding ink can be regarded as the light-transmitting area 31 of the flexible display layer 3. When the flexible display layer 3 is made of an opaque flexible material, a light-transmitting area 31 and a light-blocking area 32 can be formed on the flexible display layer 3 by laser engraving or the like. For example, when the flexible display layer 3 is an opaque PET film, the required light-transmitting area 31 can be engraved on the surface of the PET film by laser engraving (the light-transmitting area 31 at this time is essentially a through hole), and the unengraved area in the PET film is formed as the light-blocking area 32.

[0048] It should be noted here that, in specific implementation, the shape, size, and position distribution of each light-transmitting area 31 can be determined according to actual use requirements, and this embodiment does not impose specific restrictions on this. Optionally, the shape of the light-transmitting area 31 can be a text shape, a number shape, a letter shape, a dot shape, a line shape, etc. When the light emitted by the light-emitting element 2 reaches the light-transmitting area 31, light display information of the corresponding shape can be displayed. For example, when the light emitted by the light-emitting element 2 reaches the light-transmitting area 31 in the shape of a letter, the user can observe the illuminated letter on the flexible display layer 3. In this way, by combining multiple light-transmitting areas 31 of different shapes, light display information of multiple different shapes can be obtained, and light display information of different shapes can be used to represent various information of the aerosol generating device (such as remaining power, working power, remaining amount of aerosol-forming substance, preset pattern, etc.). In addition, the number of light-emitting elements 2 corresponding to each light-transmitting area 31 can also be determined according to actual use requirements, and this embodiment does not impose specific restrictions on this.

[0049] In this embodiment, it should be noted that, in a specific implementation, the flexible display layer 3 can be fixedly laminated on the first surface 11 of the flexible printed circuit board 1 by bonding or the like. Optionally, Figure 7 As shown, a third adhesive layer 33 is provided on the surface of the flexible display layer 3 facing the flexible printed circuit board 1. The flexible display layer 3 can be quickly and reliably adhered to the flexible printed circuit board 1 through the third adhesive layer 33 to form an integrated laminated structure. In a specific implementation, the third adhesive layer 33 can be double-sided tape, structural adhesive, optically transparent adhesive, pressure-sensitive adhesive, etc., as long as it can meet the use requirements. This embodiment does not impose any specific restrictions on this.

[0050] In the technical solution provided in the embodiment of the present application, a plurality of light-emitting elements 2 are distributed on the first surface 11 of the flexible printed circuit board 1, and a flexible display layer 3 having a plurality of light-transmitting areas 31 is fixed on the first surface 11 of the flexible printed circuit board 1 and covers each light-emitting element 2, so that the plurality of light-emitting elements 2 can be encapsulated between the flexible display layer 3 and the flexible printed circuit board 1, wherein the flexible printed circuit board 1 can be used as a mounting carrier for the plurality of light-emitting elements 2, and the circuit traces 14 on the flexible printed circuit board 1 can be used as a medium for electrically connecting the plurality of light-emitting elements 2 to a power source. When the plurality of light-emitting elements 2 are connected to the battery through the circuit traces 14 of the flexible printed circuit board 1, the plurality of light-emitting elements 2 are powered on and emit light, and the emitted light can be displayed in the light-transmitting area 31 of the flexible display layer 3, that is, the light-transmitting area 31 of the flexible display layer 3 can be used as a light display area of ​​the display component 60, thereby realizing the display function of the display component 60.

[0051] Since the flexible display layer 3 and the flexible printed circuit board 1 are both flexible structures, the display component 60 formed by laminating the flexible display layer 3 and the flexible printed circuit board 1 is also a flexible structure and can be bent. In this way, based on the bendable characteristics of the display component 60, the display component 60 can be covered on the outer peripheral surface of the fixed tube by winding, so that the light display area of ​​the display component 60 can be distributed on multiple outer surfaces of the aerosol generating device, thereby increasing the display area of ​​the aerosol generating device and allowing the aerosol generating device to display more information to the user.

[0052] Please refer to Figure 8 In some optional embodiments of the present application, the display assembly 60 further includes a first adhesive layer 15. The flexible printed circuit board 1 further includes a second surface 12 disposed opposite the first surface 11. The first adhesive layer 15 is disposed on the second surface 12 and bonded to the fixing tube. Thus, in some scenarios where the display assembly 60 of this embodiment is used in an aerosol generating device, the entire display assembly 60 can be quickly attached to the outer surface of the aerosol generating device via the first adhesive layer 15, thereby facilitating easier installation of the display assembly 60. In specific implementations, the first adhesive layer 15 can be a double-sided adhesive, structural adhesive, or other type of adhesive, as long as it meets the requirements of use. This embodiment does not impose any specific limitations on this.

[0053] Please refer to Figure 6 and Figure 9 In some optional embodiments of the present application, the display component 60 further includes a current driving element 41 and a current input interface 42. The first surface 11 has a first mounting area 111 and a second mounting area 112 that are connected to each other. The area of ​​the first mounting area 111 is larger than the second mounting area 112. The second mounting area 112 is located at the edge of the flexible printed circuit board 1 (for example, assuming that the flexible printed circuit board 1 is a strip-shaped sheet with a certain length and width, the second mounting area 112 can be located at the length edge or the width edge of the flexible printed circuit board 1). A plurality of light-emitting elements 2 are fixed on the first mounting area 111, and the current driving element 41 and the current input interface 42 are installed at intervals on the second mounting area 112 and are both electrically connected to the circuit trace 14.

[0054] In this embodiment, by providing a current input interface 42 electrically connected to the circuit trace 14, in some use scenarios where the display assembly 60 of this embodiment is used in an aerosol generating device, it is convenient to electrically connect the individual light-emitting elements 2 in the display assembly 60 to the power supply assembly of the aerosol generating device. For example, in a specific application, only one end of a wire needs to be connected to the current input interface 42, and the other end of the wire needs to be connected to the power supply assembly of the aerosol generating device. In this way, the electrical connection between each light-emitting element 2 and the power supply assembly of the aerosol generating device can be quickly established, which is very convenient to operate. The structure of the current input interface 42 can be a universal connector or other type of communication interface, as long as it can meet the usage requirements, and this embodiment does not impose specific limitations on this.

[0055] In this embodiment, by providing a driving element electrically connected to the circuit trace 14, in some scenarios where the display assembly 60 of this embodiment is used in an aerosol generating device, when the power supply assembly of the aerosol generating device is connected via the current input interface 42, the power supply assembly can drive each light-emitting element 2 to emit light in a preset manner, thereby displaying the desired information on the flexible display layer 3. It should be noted that, in a specific implementation, the driving element can utilize a driver chip commonly used in the art. Since its specific structure and operating principles are well known to those skilled in the art, they will not be described in detail here.

[0056] Please refer to Figure 6 、 Figure 9-10 as well as Figure 14 In some optional embodiments of the present application, a notch 13 is provided on the edge of the flexible printed circuit board 1, and the second mounting area 112 is located in the notch 13. The area of ​​the first surface 11 of the flexible printed circuit board 1 other than the second mounting area 112 is the first mounting area 111. This arrangement is more convenient than the arrangement in which the second mounting area 112 of the flexible printed circuit board 1 is protruded from the edge of the flexible printed circuit board 1 (e.g., Figure 11 As shown), in some use scenarios where the display assembly 60 of this embodiment is applied to an aerosol generating device, it is beneficial to reduce the risk of interference between the first mounting area 111 and the second mounting area 112 during the process of mounting the display assembly 60 on the outer surface of the aerosol generating device along the circumference of the aerosol generating device, thereby facilitating the increase of the display area of ​​the display assembly 60 in the circumferential direction of the aerosol generating device. For example, assuming that the display assembly 60 is a flexible strip sheet with a certain length and width, if the second mounting area 112 of the flexible printed circuit board 1 is protruded on one of the width edges of the flexible printed circuit board 1 (as shown in FIG. Figure 7As shown in FIG, in the process of installing the strip-shaped display component 60 on the outer surface of the aerosol generating device in a surrounding manner along the circumference of the aerosol generating device, the second mounting area 112 of the flexible printed circuit board 1 easily overlaps with the other width edge of the flexible printed circuit board 1 and interferes with the end of the first mounting area 111 away from the second mounting area 112, making it difficult for the display component 60 to form a complete closed-loop structure, which is not conducive to maximizing the display area of ​​the aerosol generating device along its circumference.

[0057] In the technical solution provided in this embodiment, the second mounting area 112 of the flexible printed circuit board 1 is designed to be avoided, that is, the second mounting area 112 of the flexible printed circuit board 1 is located in the notch 13 opened at the edge of the flexible printed circuit board 1. In this way, when the display component 60 is installed on the outer surface of the aerosol generating device along the circumference of the aerosol generating device, the end of the first mounting area 111 away from the second mounting area 112 can be effectively avoided from interfering with the second mounting area 112, so that the display component 60 can be easily enclosed into an open ring or a complete closed loop structure, which is conducive to maximizing the display area of ​​the aerosol generating device along its circumference.

[0058] In this embodiment, it should be noted that in some specific application scenarios, when the flexible printed circuit board 1 is a strip sheet with a certain length and width, a notch 13 ( Figure 9-10 As shown in FIG, a notch 13 for accommodating the second mounting area 112 may also be provided on the width edge of the flexible printed circuit board 1, and this embodiment does not impose any specific limitation on this.

[0059] Please refer to Figure 9 In some optional embodiments of the present application, the second mounting area 112 of the flexible printed circuit board 1 is also provided with a plurality of metal test points 43 , which are electrically connected to the circuit traces 14 of the flexible printed circuit board 1 . The provision of the plurality of metal test points 43 facilitates testers in performing functional or fault testing on the display assembly 60 .

[0060] Please continue to refer to Figure 9In some optional embodiments of the present application, the display assembly 60 further includes a flexible flat cable 52, one end of which is plugged into the current input interface 42. This arrangement facilitates the installation personnel to quickly and electrically connect the display assembly 60 to the power supply assembly of the aerosol generating device when the display assembly 60 of this embodiment is used in some scenarios. During the actual operation, the installer only needs to plug the end of the flexible flat cable 52 away from the current input interface 42 into the communication interface of the power supply assembly, which is very convenient.

[0061] Please refer to Figure 9-10 In some optional embodiments of the present application, the display assembly 60 further includes a metal sheet 51, which is fixed to the side of the flexible membrane facing away from the second mounting area 112. In this embodiment, the metal sheet 51 can reinforce (i.e., provide additional strength) the portion of the flexible printed circuit board 1 containing the second mounting area 112, thereby facilitating positioning of the portion of the flexible printed circuit board 1 where the driving element and the current input interface 42 are mounted in some usage scenarios where the display assembly 60 of this embodiment is mounted on the outer surface of an aerosol generating device. Specifically, in order to more conveniently position the portion of the flexible printed circuit board 1 where the driving element and the current input interface 42 are mounted, at least one positioning hole 511 is further provided on the surface of the metal sheet 51.

[0062] Please refer to Figure 8 In some optional embodiments of the present application, the display assembly 60 further includes a flexible reflective layer 6, which covers the first surface 11 of the flexible printed circuit board 1. Each light-emitting element 2 is exposed from the flexible reflective layer 6. In this embodiment, the provision of the flexible reflective layer 6 can improve the lighting display effect of the display assembly 60 while ensuring that the display assembly 60 is bendable. Specifically, after the light emitted by the light-emitting element 2 hits the light-transmitting area 31 of the flexible display layer 3, a portion of the light is reflected. The presence of the flexible reflective layer 6 can, to a certain extent, reflect this partially reflected light back to the light-transmitting area 31 of the flexible display layer 3, thereby improving the utilization efficiency of the light and enabling the display assembly 60 to achieve a better lighting display effect. In a specific implementation, the flexible reflective layer 6 can be a flexible reflective film (such as a transparent polyimide film), a paint layer (optionally, a white paint layer can be used as the flexible reflective layer 6 to achieve a better reflective effect), or a reflective ink layer. As long as it meets the requirements of use, this embodiment does not impose any specific restrictions.

[0063] Please continue to refer to Figure 8In some optional embodiments of the present application, the display assembly 60 further includes a flexible diffusion layer 7. The flexible diffusion layer 7 can be attached to the surface of the flexible display layer 3 on the side facing the flexible printed circuit board 1 by means of glue or the like, and the flexible diffusion layer 7 is arranged to cover each light-transmitting area 31. In this embodiment, by arranging the flexible diffusion layer 7 between the multiple light-emitting elements 2 and the multiple light-transmitting areas 31, the flexible diffusion layer 7 can evenly diffuse the light emitted by the light-emitting elements 2, so that the light emitted by the light-emitting elements 2 can be more evenly diffused to the light-transmitting areas 31 of the flexible display layer 3, thereby improving the uniformity of the light display of the display assembly 60. In a specific implementation, the flexible diffusion layer 7 can be a transparent flexible film coated with fluorescent ink, or other types of flexible diffusion films, as long as they can meet the use requirements. This embodiment does not impose specific restrictions on this. Optionally, in some embodiments, the flexible diffusion layer 7 is a yellow fluorescent ink film sheet, and the light emitted by the light-emitting element 2 is blue light. Optionally, in some embodiments, a fourth adhesive layer 71 is provided on the surface of the flexible diffusion layer 7 facing away from the flexible display layer 3 so that the flexible diffusion layer 7 is adhered to the flexible printed circuit board 1 (or the flexible reflective layer 6, or the flexible shading layer 8 described later), wherein the fourth adhesive layer 71 can be a glue layer of the type of double-sided tape, structural adhesive, etc.

[0064] Please continue to refer to Figure 8 and Figure 14 In some optional embodiments of the present application, the display assembly 60 further includes a flexible light-shielding layer 8, which is provided with a plurality of light-transmitting holes 81. The flexible light-shielding layer 8 is sandwiched between the flexible printed circuit board 1 and the flexible display layer 3, and each light-transmitting hole 81 is arranged opposite to at least one light-transmitting area 31. In this embodiment, the provision of the flexible light-shielding layer 8 can reduce the loss of light emitted by the light-emitting element 2, so that the light emitted by the light-emitting element 2 can be more fully and concentratedly transmitted to the light-transmitting area 31 of the flexible display layer 3, thereby facilitating the improvement of the light display effect of the display assembly 60. In a specific implementation, the flexible light-shielding layer 8 can be made of non-transparent flexible materials such as silicone, rubber, silicone rubber, etc., as long as it can meet the use requirements, and this embodiment does not impose specific restrictions on this.

[0065] Please continue to refer to Figure 8 In some optional embodiments of the present application, a second adhesive layer 82 is provided on the surface of the flexible light-shielding layer 8 facing the flexible printed circuit board 1. Thus, by providing the second adhesive layer 82, the flexible light-shielding layer 8 can be quickly laminated onto the first surface 11 of the flexible printed circuit board 1 or onto the flexible reflective layer 6. In a specific implementation, the second adhesive layer 82 can be a double-sided adhesive, structural adhesive, or other type of glue, as long as it meets the requirements of use, and this embodiment does not impose any specific restrictions on this.

[0066] The aerosol generating device of the present invention further includes a light-transmitting protective cover 92 and a light-transmitting protective sheet 93. The light-transmitting protective cover 92 covers the second display window 205 and is connected to the housing 20. The light-transmitting protective cover 92 can protect the portion of the display assembly 60 located in the area of ​​the second display window 205, preventing the user from touching the display assembly 60. The light-transmitting protective sheet 93 covers the first display window 204 and is connected to the housing 20. The light-transmitting protective sheet 93 can protect the portion of the display assembly 60 located in the area of ​​the first display window 204, preventing the user from touching the display assembly 60. Preferably, the light-transmitting protective cover 92 and the light-transmitting protective sheet 93 are detachably connected to the housing 20. More preferably, the light-transmitting protective cover 92 and the light-transmitting protective sheet 93 are detachably connected to the housing 20.

[0067] In this embodiment, thanks to the above-mentioned improvements, the aerosol generating device of this embodiment has the advantage of a large display area, capable of displaying more visual information to the user. It should be noted that, in a specific implementation, the display assembly 60 can be arranged around the outer shell 209 in a semi-encircling manner (in which case the display assembly 60 can be enclosed in an open loop such as a "U" shape) or a fully encircling manner (in which case the display assembly 60 can be enclosed in a closed loop such as an "O" shape) along the circumference of the outer shell 209. The specific encircling manner of the display assembly 60 can be determined according to actual usage requirements and is not specifically limited in this embodiment.

[0068] In summary, first, because the housing 20 is provided with a first display window 204 and a second display window 205, the information displayed by the display assembly 60 can be displayed from the first display window 204 and the second display window 205. This allows the aerosol generating device to present more information to the user, and different information can be displayed in different windows, making it easier for the user to identify and understand the information about the electronic cigarette. Second, because a plurality of light-emitting elements 2 are distributed on the first surface of the flexible printed circuit board 1, and a flexible display layer 3 having a plurality of light-transmitting regions 31 is fixed to the first surface of the flexible printed circuit board 1 and covers each of the light-emitting elements 2, the plurality of light-emitting elements 2 can be encapsulated between the flexible display layer 3 and the flexible printed circuit board 1. When the plurality of light-emitting elements 2 are connected to a power source through the circuit traces of the flexible printed circuit board 1, the plurality of light-emitting elements 2 are powered on and emit light, and the light emitted can be displayed in the light-transmitting regions 31 of the flexible display layer 3. That is, the light-transmitting regions 31 of the flexible display layer 3 can serve as the light display area of ​​the display assembly 60, thereby realizing the display function of the display assembly 60.

[0069] Because both the flexible display layer 3 and the flexible printed circuit board 1 are flexible structures, the display assembly 60 formed by laminating the flexible display layer 3 and the flexible printed circuit board 1 is also a flexible structure and can be bent. Thus, when the display assembly 60 provided in this application is applied to an aerosol generating device, based on the bendable nature of the display assembly 60, the display assembly 60 can be simultaneously wrapped around multiple outer surfaces of the fixing member 30, so that the light display area of ​​the display assembly 60 can be distributed across multiple outer surfaces of the aerosol generating device, thereby increasing the display area of ​​the aerosol generating device and allowing the aerosol generating device to display more information to the user. Finally, because the flexible display layer 3 corresponds to the positions of the first display window 204 and the second display window 205, only one display assembly 60 is required to display information in multiple areas, thereby facilitating assembly, improving production efficiency, and avoiding the problem of low efficiency caused by assembling multiple display assemblies.

[0070] It should be noted here that other contents of the display assembly and aerosol generating device disclosed in this application can be found in the prior art and will not be described in detail here.

[0071] The above are only preferred embodiments of the present application and do not limit the patent scope of the present application. All equivalent structural transformations made by using the contents of the present application description and drawings under the utility model concept of the present application, or direct / indirect application in other related technical fields are included in the patent protection scope of the present application.

Claims

1. An aerosol generating device with a display window, characterized in that: The invention comprises a housing, a fixing member and a display assembly, wherein the housing is provided with a first display window and a second display window, wherein the first display window is located on the first side surface of the housing; the second display window passes through the first side surface, the second side surface and the third side surface of the housing, and the second side surface of the housing is connected to the first side surface and the third side surface of the housing; the fixing member is located inside the housing; The display component includes a flexible printed circuit board having a circuit track, a plurality of light-emitting elements and a flexible display layer. The flexible printed circuit board is covered on the side of the fixing member. The flexible printed circuit board has a first surface along its thickness direction; the light-emitting elements are distributed at intervals on the first surface and are electrically connected to the circuit track; the flexible display layer is fixedly stacked on the first surface and covers each of the light-emitting elements. The flexible display layer has a plurality of light-transmitting areas, each of which is arranged opposite to at least one light-emitting element, and the area of ​​the flexible display layer other than the light-transmitting area is a light-shielding area; the flexible display layer corresponds to the position of the first display window and the second display window.

2. The aerosol generating device with a display window according to claim 1, wherein: The shell includes a first end cover, a second end cover and a side cover. The fixing member is located between the first end cover and the second end cover. The first end of the fixing member is connected to the first end cover, and / or the second end of the fixing member is connected to the second end cover; the first end of the side cover is connected to the first end cover, and the second end of the side cover is connected to the second end cover.

3. The aerosol generating device with a display window according to claim 2, wherein: The fixing member includes a fixing tube, a first end of the fixing tube is connected to the first end cover, and the flexible printed circuit board is covered on a side surface of the fixing tube.

4. The aerosol generating device with a display window according to claim 3, wherein: The aerosol generating device further includes a support seat, which is located between the fixed tube and the second end cover, and the second end of the fixed tube is connected to the support seat; the first end cover, the second end cover and the side cover are an integrally formed structure.

5. The aerosol generating device with a display window according to claim 4, wherein: The aerosol generating device also includes a liquid storage component, which includes a liquid storage tube, a first elastic sealing seat and a second elastic sealing seat. The fixed tube includes a tube body portion, and the end of the tube body portion facing the first end cover extends along the direction of the center line of the tube body portion to form an end wall portion, and the end wall portion abuts against the first end cover; the liquid storage tube is located in the tube body portion, the first elastic sealing seat cover is arranged at the first end of the tube body portion and elastically abuts against the end wall portion, and the second elastic sealing seat cover is arranged at the second end of the tube body portion and is connected to the support seat.

6. The aerosol generating device with a display window according to claim 4, wherein: A fixing groove is provided on the side of the fixing tube, and the flexible printed circuit board is at least partially inserted into the fixing groove.

7. The aerosol generating device with a display window according to claim 6, wherein: The display component is provided with a positioning notch, and the fixing groove is provided with a positioning protrusion, and the positioning protrusion is inserted into the positioning notch.

8. The aerosol generating device with a display window according to claim 4, wherein: The display assembly further includes a first adhesive layer. The flexible printed circuit board further includes a second surface disposed opposite to the first surface. The first adhesive layer is disposed on the second surface and adhered to the fixing tube.

9. The aerosol generating device with a display window according to claim 1, wherein: The aerosol generating device further includes a light-transmitting protective cover, which covers the second display window and is connected to the housing.

10. The aerosol generating device with a display window according to claim 1, wherein: The aerosol generating device further includes a light-transmitting protective sheet, which covers the first display window and is connected to the housing.

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