Key assembly, assembly member and aerosol generating device

Abstract

The invention relates to the technical field of electronic atomization, and provides a key assembly, an assembling component and an aerosol generating device.The key assembly comprises a key cap, a display part and a circuit board, the key cap is fixedly connected with the circuit board, the pressing face of the key cap comprises a light-transmitting area, the light-transmitting area is used for transmitting light emitted by the display part, and the light-transmitting area is used for transmitting the light emitted by the display part. The circuit board is located on the side, opposite to the light transmitting area, of the display part and electrically connected with the display part. According to the key assembly provided by the invention, the display part is combined with the key, so that the use experience of a user can be improved, the compact design of related electronic equipment can be realized, and the whole aerosol generating device applying the key assembly can be more attractive to a certain extent.

Description

Technical Field

[0001] The present application belongs to the technical field of electronic atomization, and more specifically, relates to a key assembly, an assembly component and an aerosol generating device. Background Art

[0002] The aerosol generating device can heat the aerosol-forming matrix to generate an aerosol. In the related art, in order to facilitate users to obtain the working status of the aerosol generating device in real time, a display screen is generally installed on the device, but such an arrangement directly causes the device to consume power faster when in use. If there is a power shortage during the user's travel, it will cause great inconvenience to the user. However, if the screen is directly removed to reduce power consumption, the user will not be able to obtain the working status of the device in a timely and clear manner, which will also affect the user's experience. Summary of the invention

[0003] The present application provides a button assembly, an assembly component and an aerosol generating device, which can improve the user experience to a certain extent.

[0004] To achieve the above purpose, the technical solution adopted in this application is:

[0005] In a first aspect, the present application provides a key assembly, comprising a keycap, a display component and a circuit board, wherein the keycap is fixedly connected to the circuit board, the pressing surface of the keycap comprises a light-transmitting area, and the light-transmitting area is used to conduct light emitted by the display component, and the circuit board is located on the side of the display component facing away from the pressing surface and is electrically connected to the display component.

[0006] The key assembly provided in the embodiment of the present application combines a display component with a display function with a key, which not only reduces the screen size, thereby reducing power consumption to a certain extent and helping to improve the user experience; moreover, the above-mentioned arrangement method also helps to achieve a compact design of related electronic equipment, and can make the key assembly more beautiful and more diverse in functions to a certain extent.

[0007] Optionally, a first bracket is provided between the display element and the circuit board, a clearance gap is provided on the first bracket, and a flexible connecting element passes through the clearance gap to connect the display element and the circuit board.

[0008] Optionally, at least a portion of the inner side wall of the light-transmitting area is a curved surface, and at least a portion of the surface of the display element is opposite to the curved surface.

[0009] Optionally, the display element includes a first functional area and a second functional area, the number of the first functional areas is plural and any two of the first functional areas are arranged at intervals, and the second functional area is connected to the first functional area.

[0010] Optionally, a first limiting protrusion that is clamped with the circuit board is further protruded on the inner side wall of the keycap, and the number of the first limiting protrusions is at least two and they are arranged at intervals along the opening end of the keycap.

[0011] Optionally, at least a portion of the keycap is made of a semi-transparent material.

[0012] In a second aspect, the present application provides an assembly component, comprising an elastic member, a limiting plate and any one of the above-mentioned key assemblies, wherein the limiting plate is located on a side of the circuit board facing away from the display member, and the elastic member is located between the limiting plate and the circuit board;

[0013] The button assembly can push the circuit board to approach the limiting plate and squeeze the elastic member under the action of external force, and the elastic member is used to provide elastic supporting force to the circuit board.

[0014] Optionally, the limiting plate is provided with a receiving groove for receiving the elastic member;

[0015] And / or, the elastic member is in contact with the circuit board.

[0016] Optionally, the assembly component further includes a first mounting shell, a key hole is formed on the first mounting shell, and the key cap is inserted through the key hole so that the pressing surface is exposed relative to the first mounting shell.

[0017] Optionally, the first mounting shell is provided with at least two spaced-apart limiting arms, and any one of the limiting arms is provided with a through slot;

[0018] The limiting plate is provided with second limiting protrusions matched with the through slots, and the number of the second limiting protrusions is the same as the number of the through slots and is arranged in a one-to-one correspondence.

[0019] In a third aspect, an embodiment of the present application further provides an aerosol generating device, comprising a battery cell and any of the above-mentioned assembly components, wherein the battery cell is electrically connected to the key assembly.

[0020] Optionally, it further comprises a second mounting shell fixedly connected to the assembling component, and the battery cell is located in the second mounting shell.

[0021] In a fourth aspect, an embodiment of the present application further provides an aerosol generating device, comprising a battery cell and a key assembly as described in any one of the above items, wherein the battery cell is electrically connected to the key assembly.

[0022] Compared with the prior art, the present invention has at least the following beneficial effects:

[0023] The key assembly provided in the embodiment of the present application can take into account both the key control and information display functions. By integrating the display component into the key assembly, the screen size can be effectively reduced, thereby reducing the power consumption of the relevant electronic device to a certain extent and improving its user experience; in addition, such a structure also helps to achieve a compact design of the electronic device, and to a certain extent enriches the function of the key assembly and improves the aesthetics of the key. When it is applied to an aerosol generating device, the working state of the aerosol generating device can be directly controlled in the power-on state, and the relevant working information of the aerosol generating device can be displayed. The assembly component can be used to install and fix the above-mentioned key assembly, which helps to reduce the difficulty of assembling the key assembly to the aerosol generating device. 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 embodiments or the description of the prior art 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 paying any creative work.

[0025] Figure 1 A schematic diagram of the structure of a key assembly provided in an embodiment of the present application;

[0026] Figure 2 A schematic cross-sectional structure diagram of a key assembly provided in an embodiment of the present application;

[0027] Figure 3 An exploded schematic diagram of a key assembly provided in an embodiment of the present application;

[0028] Figure 4 A schematic diagram of the structure of the assembly components provided in the embodiment of the present application;

[0029] Figure 5A A cross-sectional view of an assembly component provided in an embodiment of the present application;

[0030] Figure 5B A cross-sectional view of an assembly component from another angle provided in an embodiment of the present application;

[0031] Figure 6 An exploded schematic diagram of an assembly component provided in an embodiment of the present application;

[0032] Fig. 7A for Figure 6 A schematic diagram of the structure of the limiting plate in FIG.

[0033] Figure 7B for Figure 6 A schematic structural diagram of another angle of the limiting plate;

[0034] Figure 8 A schematic diagram of the structure of an aerosol generating device provided in an embodiment of the present application;

[0035] Fig. 9 A cross-sectional view of an aerosol generating device provided in an embodiment of the present application;

[0036] Fig.10 Schematic diagram of the explosion and decomposition of the aerosol generating device provided in an embodiment of the present application.

[0037] Among them, the reference numerals in the figure are:

[0038] 1. Keycap; 11. Light-transmitting area; 12. First limiting protrusion; 13. Limiting guide column; 2. Display component; 3. Circuit board; 31. Press signal generating unit; 4. First bracket; 41. Make way gap; 5. Flexible connector; 6. Elastic component; 7. Limiting plate; 71. Accommodating groove; 72. Second limiting protrusion; 73. Abutting arm; 74. Hollow groove; 75. Make way gap; 8. First mounting shell; 81. Key hole; 82. Limiting arm; 821. Through groove; 83. Limiting guide groove; 84. Mouth end assembly; 9. Battery cell; 10. Second mounting shell; 110. Liquid storage tank; 120. Control circuit; 130. Atomization core. DETAILED DESCRIPTION

[0039] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0040] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0041] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0042] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0043] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0044] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0045] In the present application, the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0046] In a first aspect, an embodiment of the present application provides a key assembly, which includes a key cap 1, a display element 2 and a circuit board 3, see Figure 1-Figure 3 .

[0047] The keycap 1 has a receiving space for receiving the display element 2 and the circuit board 3. The display element 2 and the circuit board 3 are located in the receiving space and are fixed relative to the keycap 1, wherein the display element 2 is electrically connected to the circuit board 3. The pressing surface of the keycap 1 includes a light-transmitting area 11, and the light-transmitting area 11 can be used to allow the light emitted by the display element 2 to be emitted. The circuit board 3 is located on the side of the display element 2 facing away from the pressing surface to avoid blocking the light.

[0048] When powered on, the display element 2 can respond to the signal sent from the circuit board 3 and emit light outward through the light-transmitting area 11. The display element 2 can be a common LED screen or LCD screen in the prior art, or can be composed of other electronic components with display functions, which will not be described in detail here.

[0049] The key assembly provided in the embodiment of the present application combines a display element 2 with a display function with a key, which not only reduces the screen size, thereby reducing power consumption to a certain extent, and helping to improve the user experience; moreover, the above-mentioned arrangement method also helps to achieve a compact design of related electronic equipment, and can make the key assembly more beautiful and more functional to a certain extent.

[0050] When the key assembly is pressed, the external electronic components that cooperate with it can receive the electrical signal output by the key assembly and realize the corresponding function control through the electrical signal. Accordingly, the display element 2 can display the feedback information fed back to the circuit board 3 in real time according to the operation of the key assembly. The electrical connection between the display element 2 and the circuit board 3 will not be described in detail here.

[0051] In some embodiments, the key assembly is a mechanical press key, which can be any one of a push button switch, a touch switch, and a micro switch, and can be triggered by an external force.

[0052] Specifically, the keycap 1 is fixedly connected to the circuit board 3 , so that the circuit board 3 remains fixed relative to the keycap 1 , and the display element 2 located between the keycap 1 and the circuit board 3 is also fixed relative to the keycap 1 .

[0053] See also Figure 2 In some embodiments, a first limiting protrusion 12 is convexly disposed on the inner side wall of one end of the key cap 1 close to the opening of the accommodation space. The circuit board 3 can be connected to the key cap 1 by snapping through the first limiting protrusion 12.

[0054] Specifically, the number of the first limiting protrusions 12 is at least two, and they are arranged at intervals along the circumferential side edge of the opening end of the keycap 1.

[0055] As an example, the number of the first limiting protrusions 12 is two and they are arranged opposite to each other.

[0056] In another example, the number of the limiting protrusions may be three and they are evenly spaced along the circumferential side edge of the opening end of the key cap 1 .

[0057] The circuit board 3 can be connected to the key cap 1 by the first limiting protrusion 12. This structure can not only firmly fix the circuit board 3, the display element 2 and the key cap 1, but also help to reduce the difficulty of assembly and maintenance of the key assembly.

[0058] It should be noted that after the keycap 1, the display component 2 and the circuit board 3 are assembled, the limiting protrusion in the keycap 1 is located on the side of the circuit board 3 facing away from the display component 2, that is, at least part of the structure of the end of the keycap 1 protrudes relative to the circuit board 3.

[0059] In order to further reduce the possibility of the display member 2 and the circuit board 3 moving relative to the key cap 1, the display member 2 and the circuit board 3 are reinforced. Figure 2 and Figure 3 A first bracket 4 is also provided in the accommodation space of the keycap 1. The first bracket 4 is located between the display element 2 and the circuit board 3, wherein a space for accommodating the display element 2 is formed between the side of the first bracket 4 pointing to the light-transmitting area 11 and the keycap 1, and the side of the first bracket 4 facing away from the display area can be in contact with the circuit board 3.

[0060] In order to prevent the first bracket 4 from affecting the electrical connection between the display element 2 and the circuit board 3, please refer to Figure 2 and Figure 3 The first bracket 4 may be provided with a clearance notch 41 , and the flexible connecting member 5 for connecting the display element 2 and the circuit board 3 may pass through the clearance notch 41 .

[0061] In some embodiments, the above-mentioned clearance gap 41 can be opened on the outer peripheral side edge of the first bracket 4 close to the circuit board 3, such as Figure 2 Shown and Figure 3 As shown, correspondingly, a notch corresponding to the clearance notch 41 is provided on the circuit board 3; in other similar embodiments, the above-mentioned clearance notch 41 can also be set on the side of the first bracket 4 facing the display component 2. At this time, the above-mentioned clearance notch 41 is a hole-shaped structure, and the flexible connecting member 5 passes through the clearance notch 41 to connect the display component 2 and the circuit board 3.

[0062] The flexible connector 5 (Flexible Printed Circuit, FPC) can be a printed circuit board 3 with high reliability and excellent flexibility made of polyimide or polyester film as a substrate. FPC has good bending performance. The flexible connector 5 made of this material can be bent to form a shape that can connect the display part 2 and the circuit board 3 located on both sides of the first bracket 4, so as to improve the durability and electrical safety of the key assembly.

[0063] In some embodiments, the flexible connector 5 can be integrally formed with the display element 2, and the display element 2 is also made of a flexible FPC material. In other similar embodiments, the flexible connector 5 can be connected to the display element 2 by welding or other means to achieve electrical connection.

[0064] When preparing the key assembly, its shape (especially the shape of the pressing surface) and the distribution position of the light-transmitting area 11 can be adaptively adjusted according to actual needs. For example, the pressing surface can be a flat surface, a curved surface with a downward depression in the middle, or a curved surface with a convex middle and a smooth arc surface. Figure 1 Accordingly, the light-transmitting area 11 may be distributed only on the pressing surface, part or all of the pressing surface may be set as the light-transmitting area 11, or the entire keycap 1 may be made of the same material and have a light-transmitting effect, in which case all positions of the keycap 1 may form the light-transmitting area 11.

[0065] Accordingly, in order to ensure that at least part of the light-transmitting area 11 disposed on the above-mentioned pressing surface has a good display effect, the inner side wall of the keycap 1 corresponding to the light-transmitting area 11 can be set to be a flat surface or a curved surface. It is only necessary to ensure that the display element 2 can be kept facing and basically fit with the above-mentioned area to avoid affecting the display effect.

[0066] Specifically, when at least a portion of the inner side wall of the key cap 1 corresponding to the light-transmitting area 11 is a curved surface, at least a portion of the surface of the display element 2 is opposite to the curved surface, and can maintain at least partial contact.

[0067] This means that the display element 2 is composed of a bendable display element. When the display element 2 has good bending performance, the display element 2 can be bent to form a shape that can better match the inner side wall of the curved surface, so as to better cooperate with the inner side wall and achieve a better display effect.

[0068] See also Figure 2 , the above-mentioned curved surface can be a hemispherical surface.

[0069] In order to make the display element 2 better cooperate with the above-mentioned curved surface structure, in some embodiments, the display element 2 can be arranged to include a first functional area and a second functional area connected, the number of first functional areas is multiple and any two first functional areas are arranged at intervals, and the second functional area is connected to the first functional area.

[0070] It should be noted that the above-mentioned first functional areas have a display function and can be arranged at different positions corresponding to the light-transmitting area 11, and the second functional areas can be used to connect the first functional areas, thereby effectively reducing the assembly difficulty of the display part 2 and the wrinkle problem that may occur during the assembly of the display part 2 without affecting the display function of the display part 2.

[0071] The first functional area can be arranged to extend in sequence along the thickness direction of the keycap 1, and correspondingly, the second functional area can be distributed in a plurality of different positions, wherein at least part of the second functional area is located at the end of the display element 2 facing away from the circuit board 3 and connected to each first functional area. The display element 2 composed of the first functional area and the second functional area can better adapt to the spherical surface of the inner wall of the keycap 1, and at the same time, in conjunction with the first bracket 4, it can be assembled and gradually closed by fitting the curved surface of the first bracket 4 to form the desired hemispherical shape. At this time, the assembly gap between the different functional areas is small.

[0072] In order to further improve the display effect of the display element 2, in some embodiments, the second functional area used to connect the first functional area may also have a display function. In other words, the second functional area may only have a connection function, or may have both a display and a connection function. Its specific use may be adaptively adjusted according to actual needs, and will not be described in detail here.

[0073] Considering that there is a certain assembly gap on the display element 2, in order to hide the above assembly gap as much as possible and improve the display effect of the display element 2, in some embodiments, at least a part of the above keycap 1 can be made of semi-transparent material.

[0074] For example, the entire key cap 1 may be made of a semi-translucent material, or the pressing surface or the translucent area 11 of the key cap 1 may be made of a semi-translucent material.

[0075] Specifically, a semi-transmissive material is a material that allows some light to pass through, while absorbing and reflecting the light, making it appear dark in appearance such as black, gray or brown.

[0076] By using the semi-transparent material to prepare the keycap 1, the key assembly can cover the display element 2 when the display element 2 is in a non-luminous state, so as to have a more beautiful appearance; and when the display element 2 is in a luminous state, it does not affect the normal display of the information displayed by the display element 2.

[0077] Taking the keycap 1 made of semi-transparent material with a black appearance as an example, the semi-transparent material is mainly made of optical resin material, and the optical resin material, such as polycarbonate (PC), acrylic (PMMA), etc., can provide the keycap 1 with basic mechanical shape and optical properties; an appropriate amount of black dye or pigment is also added to the above-mentioned optical resin material, and these black colorants are evenly dispersed in the optical resin material to give the lens a black appearance.

[0078] It can be understood that the key component provided in the embodiment of the present application takes into account both key control and information display functions. By integrating the display unit 2 into the key component, the screen size can be effectively reduced, thereby reducing the power consumption of the relevant electronic device to a certain extent and improving its usage experience. This combination can provide users with a more intuitive and convenient operation experience. Users can immediately see the feedback results of the operation through the display unit 2 while operating the key component, reducing the complexity of the operation and the learning cost. In addition, such a structure also helps to achieve a compact design of the electronic device, enrich the functions of the key component to a certain extent, and improve the aesthetics of the key.

[0079] In the second aspect, the embodiment of the present application provides an assembly component, which includes the key assembly described above, and also includes an elastic member 6 and a limit plate 7 that cooperate with the key assembly, see Figure 4-Figure 6 The limiting plate 7 is located on the side of the circuit board 3 facing away from the display element 2 , and the elastic element 6 is located between the limiting plate 7 and the circuit board 3 .

[0080] The above-mentioned key assembly can push the circuit board 3 to approach the limit plate 7 and squeeze the elastic member 6 under the action of external force, so as to trigger the pressing function of the key assembly in this process. In addition, the above-mentioned elastic member 6 can also provide elastic supporting force to the circuit board 3, so as to push the key cap 1 to return to the initial position after the external force pressing the key cap 1 is removed.

[0081] The circuit board 3 and the elastic member 6 may be in close contact with each other, or there may be a certain gap between them.

[0082] In order to facilitate triggering the pressing function of the button assembly, a pressing signal generating unit 31 may be provided on the side of the circuit board 3 facing away from the display element 2 , and the elastic element 6 is arranged opposite to the pressing signal generating unit 31 .

[0083] When the key is pressed, the elastic member 6 presses the pressing signal generating unit 31. After receiving the pressing force from the elastic member 6, the pressing signal generating unit 31 can make the circuit board 3 send out an electrical signal or realize circuit conduction, thereby realizing the corresponding function of the key.

[0084] The elastic member 6 can be silica gel. Silica gel has good elasticity and resilience, can provide a comfortable pressing feel and ensure that it can still return to its original shape after multiple pressings.

[0085] When the user presses the button assembly, the button assembly is squeezed by force and the elastic member 6 gradually deforms. In the process, the elastic member 6 acts on the pressing signal generating unit 31 to make it produce a recoverable deformation, and in the process of deformation, the circuit board 3 sends an electrical signal or realizes circuit conduction.

[0086] Specifically, the thickness of the elastic member 6 is about 2 mm to 5 mm.

[0087] See also Figure 6 The shape of the elastic member 6 can be customized according to the shape contour of the press signal generating unit 31 to ensure that the elastic member 6 can better cooperate with the press signal generating unit 31.

[0088] The above-mentioned limiting plate 7 is located on the side of the elastic member 6 facing away from the key assembly, and is used to provide a certain support to the key assembly. In some embodiments, the limiting plate 7 is a plate-like structure, and can be made of hard plastic or metal material.

[0089] The limit plate 7 can help the key assembly to trigger at the correct position, provide a stable support surface for the key assembly, and at the same time, provide certain tactile feedback for pressing the key assembly.

[0090] When the user presses the key assembly, the key assembly moves toward the side close to the limit plate 7 until the keycap 1 contacts the limit plate 7. The limit plate 7 will give the user a clear sense of touch, knowing that the key assembly has reached the end of its travel, and the pressing operation of the key assembly has been completed. This tactile feedback is very important for user experience. The user can clearly perceive the triggering action of the key assembly. This feedback helps the user to more accurately control the number of key assembly times during operation, especially in scenarios that require fast input or precise operation.

[0091] In order to improve the assembly stability and prevent the elastic member 6 from falling off, in some embodiments, a receiving groove 71 for receiving the elastic member 6 is provided on the limiting plate 7 .

[0092] See also Figure 5A and Figure 5B When the elastic member 6 is assembled in the receiving groove 71 , the elastic member 6 can keep in contact with the circuit board 3 or keep a small gap therebetween.

[0093] Specifically, the elastic member 6 can be attached to the pressing signal generating unit 31 which is provided on the circuit board 3 and is used to realize the pressing trigger function.

[0094] In order to achieve the above effect, it is necessary to arrange the accommodating groove 71 on the limiting plate 7 to face the pressing signal generating unit 31 .

[0095] In order to further enhance the above tactile feedback, in some embodiments, the limiting plate 7 is provided with an abutment arm 73 and a hollow groove 74, see Fig. 7A and Figure 7B .

[0096] Specifically, the hollow groove 74 is arranged to penetrate the thickness direction of the limiting plate 7. The hollow groove 74 is located at the outer peripheral side of the receiving groove 71 and is arranged around the receiving groove 71.

[0097] See also Fig. 7A The number of hollow grooves 74 is two and they are arranged opposite to each other. Any hollow groove 74 extends along an arc. An abutment arm 73 is provided at one end of the hollow groove 74 in the length direction. The shapes of the two hollow grooves 74 can be the same or different. Fig. 7A In the embodiment, a plane where one hollow groove 74 is located is lower than a plane where another hollow groove 74 is located.

[0098] The abutment arm 73 is an L-shaped structure as a whole, including an elastic sub-arm and a supporting sub-arm, wherein the elastic sub-arm and the supporting sub-arm are integrally formed, and the supporting sub-arm is raised relative to the elastic sub-arm. When the limit plate 7 is assembled and connected with the key assembly, one end of the supporting sub-arm facing away from the elastic sub-arm contacts the circuit board 3 and is used to support the circuit board 3.

[0099] Specifically, one end of the elastic sub-arm in the length direction is connected to the inner wall of the hollow groove 74, and the other end extends a certain distance along the hollow groove 74 and is connected to the supporting sub-arm. The length of the elastic sub-arm is less than the length of the corresponding hollow groove 74.

[0100] In order to further optimize the elastic supporting ability of the limiting plate 7 and the abutting arm 73 disposed on the limiting plate 7 to the circuit board 3, the thickness of the elastic sub-arm gradually changes along its extension direction, and the thickness of the end of the elastic sub-arm used to connect with the supporting sub-arm is less than the thickness of the end of the elastic sub-arm used to connect with the hollow groove 74. Figure 7B In addition, the abutment arm 73 and the limiting plate 7 are integrally formed.

[0101] Specifically, the surface of the elastic sub-arm facing the supporting sub-arm is basically located in the same plane as the upper surface of the limiting plate 7, and the surface of the elastic sub-arm facing away from the supporting sub-arm is inclined relative to the lower surface of the limiting plate 7.

[0102] See also Fig. 7A The heights of the two supporting sub-arms respectively formed on different abutting arms 73 are not completely consistent, so as to ensure that the abutting arms 73 distributed on the hollow grooves 74 in different planes can maintain abutment with the circuit board 3 through the supporting sub-arms.

[0103] When pressing the key assembly, the design of the hollow groove 74 makes it easier for the middle part of the limit plate 7 to deform, especially the area where the limit groove and the hollow groove 74 are provided. In this process, the elastic sub-arm in the abutment arm 73 will bend synchronously with the deformation of the limit plate 7. After the external pressing force is removed, the elastic sub-arm can restore the initial deformation under the action of the elastic force and cause the limit plate 7 to rebound quickly to the initial state. This rapid rebound can provide the user with clear tactile feedback. The user can clearly feel that the key assembly "rebounds to the initial position", which allows the user to clearly know that the pressing operation has been completed.

[0104] In addition, the deformation recovery capability provided by the abutment arm 73 combined with the deformation capability improved by the hollow groove 74 can also help the key to adapt to different pressing forces, help to accurately trigger the key function, and improve the user experience. At the same time, the above structure can also keep the limit plate 7 relatively stable, can better adapt to the use environment such as vibration and bumps, and buffer the impact of vibration on the structure, which also helps to reduce the probability of false touches.

[0105] Most importantly, the design of the hollow groove 74 also helps disperse the stress on the limit plate 7 when the user presses, reduces the situation of local excessive stress on the limit plate 7, and reduces the risk of material fatigue and damage. During the repeated pressing of the key assembly, the abutment arm 73 absorbs and releases energy through its own deformation and recovery, sharing the pressure on the limit plate 7, thereby extending the service life of the entire key structure.

[0106] See also Figure 4 and Figure 6 The assembly component provided in the embodiment of the present application also includes a first mounting shell 8 for accommodating and fixing the above-mentioned button assembly, elastic member 6 and limiting plate 7.

[0107] The first mounting shell 8 has a key hole 81, and the key cap 1 is inserted into the key hole 81 to expose the pressing surface relative to the first mounting shell 8. Since the pressing surface includes the light-transmitting area 11, at least part of the light-transmitting area 11 can be exposed relative to the first mounting shell 8 through the key hole 81.

[0108] See also Figure 6 , Fig. 7A and Figure 7B At least two limiting arms 82 are provided on the first mounting shell 8, all limiting arms 82 are arranged at intervals and any limiting arm 82 is provided with a through slot 821, and the limiting plate 7 is provided with a second limiting protrusion 72 that can cooperate with the through slot 821. The number of the second limiting protrusions 72 is the same as the number of the through slots 821 and is arranged one by one.

[0109] The limiting plate 7 can be fixedly connected to the first mounting shell 8 through the mutually matched through slots 821 and the second limiting protrusions 72. The pressing assembly is firmly arranged on the key hole 81 under the limiting action of the limiting plate 7 and the first mounting shell 8, and the elastic member 6 between the key assembly and the limiting plate 7 is fixedly arranged through the accommodating slot 71.

[0110] Along the height direction of the key assembly, the external shape of the key cap 1 will have a certain impact on the normal use of the key assembly.

[0111] For example, when the key cap 1 is a circular key cap 1 and the key hole 81 is a circular hole, the key assembly may rotate relative to the key hole 81 during use.

[0112] In order to avoid the problem of the key assembly rotating relative to the key hole 81, in some embodiments, a strip-shaped limiting guide groove 83 and a strip-shaped limiting guide column 13 can be provided on at least part of the side wall of the first mounting shell 8 close to the key hole 81 along the pressing direction of the key assembly, and correspondingly, the other one is provided at the corresponding position of the key cap 1.

[0113] In one embodiment of the present application, the limiting guide groove 83 is provided on the first mounting shell 8, and the limiting guide column 13 is provided on the key cap 1, see Figure 5B .

[0114] Specifically, there are two limit guide grooves 83 arranged relatively along the circumference of the key hole 81, and there are two limit guide pillars 13. The two limit guide grooves 83 and the two limit guide pillars 13 are arranged one by one, and the two cooperate with each other to effectively limit the moving path of the key assembly, so that the key assembly moves vertically up and down relative to the limit plate 7 and is accurately triggered, and the key assembly is prevented from rotating relative to the first mounting shell 8.

[0115] See also Figure 4 The first mounting shell 8 is also formed with other functional components. For example, a mouth end component 84 is used to match the user's mouth according to the use requirements. The mouth end component 84 is used to contact the user's oral cavity, and its external shape is designed to allow the user to comfortably hold it in the mouth for suction operation.

[0116] In a third aspect, an embodiment of the present application further provides an aerosol generating device, which includes a battery cell 9 and a key assembly as described in any one of the above items, and the battery cell 9 is electrically connected to the key assembly.

[0117] The aerosol generating device also includes a liquid storage tank 110 and a control circuit 120. The control circuit 120 is electrically connected to the battery cell 9 and is located on the side of the battery cell 9 facing away from the key assembly. The control circuit 120 is connected to the circuit board 3 in the key assembly through a flexible FPC. The circuit board 3 is provided with a circuit connector for connecting the FPC. Correspondingly, the limit plate 7 is provided with an avoidance notch 75, so that the FPC passes through the limit plate 7 and connects the control circuit 120 and the circuit board 3. The liquid storage tank 110 is a hollow structure arranged side by side with the battery cell 9, and the channel formed by the hollow part can be connected to the mouth end assembly 84 formed on the first mounting shell 8. An atomizing core 130 is movably arranged at the hollow structure of the liquid storage tank 110, and the rest is at least partially used to store the aerosol generating matrix. The atomizing core 130 is electrically connected to the control circuit 120, and the aerosol generating matrix can be heated and generate aerosol under the action of the atomizing core 130. The aerosol can flow to the mouth end assembly 84 through the passage communicating with the mouth end assembly 84, and be discharged through the mouth end assembly 84. The user can inhale the aerosol through the mouth end assembly 84.

[0118] Those skilled in the art should be aware that the assembly structure and appearance of each component in the aerosol generating device can refer to the existing structures in the relevant technology, and will not be described in detail in this application.

[0119] When the aerosol generating device is working, the battery core 9 transmits a certain power of electric energy to the atomizing core 130 under the control of the control circuit 120. The atomizing core 130 generates heat, heats the aerosol-forming matrix in contact with it, and generates aerosol. The user inhales through the mouth end component 84, so that the aerosol is discharged from the aerosol generating device along the mouth end component 84.

[0120] Of course, the aerosol generating device provided in the embodiment of the present application also has a housing for installing the above-mentioned key assembly, battery core 9 and other structures.

[0121] It is understandable that the aerosol generating device provided in the embodiment of the present application includes the beneficial effects of any one or more of the above-mentioned key components, which will not be repeated here. In addition, the aerosol generating device can also achieve a more compact appearance design through a key component with a special shape, and improve the integration of the section, making its appearance more beautiful and exquisite, and it also has the advantages of more convenient operation and control, more novel interaction methods, etc., which helps to enhance the user's experience and interactive experience when using it; to a certain extent, the aerosol generating device can also reduce the number of parts, thereby reducing processing costs and improving processing efficiency.

[0122] In a fourth aspect, the present application also provides an aerosol generating device, see Figure 8-Figure 10 The aerosol generating device comprises a battery core 9 and the above-mentioned assembly member, and the battery core 9 is electrically connected to the key assembly.

[0123] See also Fig. 9 and Fig.10 The aerosol generating device further includes a second mounting shell 10 , which can be snap-fitted with the first mounting shell 8 and form a housing of the aerosol generating device, and the battery core 9 is located in the second mounting shell 10 .

[0124] A liquid storage tank 110 and a control circuit 120 are also provided in the second mounting shell 10. The control circuit 120 is electrically connected to the battery cell 9 and is located on the side of the battery cell 9 facing away from the key assembly. The control circuit 120 is connected to the circuit board 3 in the key assembly through a flexible FPC. The circuit board 3 is provided with a circuit connector for connecting the FPC. Correspondingly, a relief notch 75 is provided on the limit plate 7 to facilitate the FPC to pass through the limit plate 7 and connect the control circuit 120 and the circuit board 3. The liquid storage tank 110 is a hollow structure arranged side by side with the battery cell 9, and the channel formed by the hollow part can be connected to the mouth end assembly 84 formed on the first mounting shell 8. An atomizer core 130 is movably provided at the hollow structure of the liquid storage tank 110, and at least part of the rest is used to store an aerosol generating matrix. The atomizer core 130 is electrically connected to the control circuit 120, and the aerosol generating matrix can be heated and generate an aerosol under the action of the atomizer core 130. The aerosol can flow to the mouth end assembly 84 through the passage communicating with the mouth end assembly 84, and be discharged through the mouth end assembly 84. The user can inhale the aerosol through the mouth end assembly 84.

[0125] Those skilled in the art should be aware that the assembly structure and appearance of each component in the aerosol generating device can refer to the existing structures in the relevant technology, and will not be described in detail in this application.

[0126] When the aerosol generating device is working, the battery core 9 transmits a certain power of electric energy to the atomizing core 130 under the control of the control circuit 120. The atomizing core 130 generates heat, heats the aerosol-forming matrix in contact with it, and generates aerosol. The user inhales through the mouth end component 84, so that the aerosol is discharged from the aerosol generating device along the mouth end component 84.

[0127] It is understandable that the aerosol generating device provided in the embodiment of the present application includes the beneficial effects of any one or more of the above-mentioned key components, which will not be repeated here. In addition, the aerosol generating device can also achieve a more compact appearance design through a key component with a special shape, and improve the integration of the section, making its appearance more beautiful and exquisite, and it also has the advantages of more convenient operation and control, more novel interaction methods, etc., which helps to enhance the user's experience and interactive experience when using it; to a certain extent, the aerosol generating device can also reduce the number of parts, thereby reducing processing costs and improving processing efficiency.

[0128] The above description of various embodiments tends to emphasize the differences between the various embodiments. The same or similar parts can be referenced to each other, and for the sake of brevity, they will not be repeated in this article.

[0129] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A button assembly, characterized in that: The invention comprises a key cap (1), a display element (2) and a circuit board (3), wherein the key cap (1) is fixedly connected to the circuit board (3), the pressing surface of the key cap (1) comprises a light-transmitting area (11), and the light-transmitting area (11) is used to conduct light emitted by the display element (2); the circuit board (3) is located on a side of the display element (2) facing away from the pressing surface and is electrically connected to the display element (2).

2. The key assembly according to claim 1, characterized in that: A first bracket (4) is arranged between the display element (2) and the circuit board (3); a clearance notch (41) is provided on the first bracket (4); and a flexible connecting element (5) passes through the clearance notch (41) to connect the display element (2) and the circuit board (3).

3. The key assembly according to claim 1 or 2, characterized in that: At least part of the inner side wall of the light-transmitting area (11) is a curved surface, and at least part of the surface of the display element (2) is opposite to the curved surface.

4. The key assembly according to claim 3, characterized in that: The display element (2) comprises a first functional area and a second functional area, the first functional areas are multiple in number and any two of the first functional areas are arranged at intervals, and the second functional area is connected to the first functional area.

5. The key assembly according to claim 1, characterized in that: A first limiting protrusion (12) is also protruded on the inner side wall of the key cap (1) and is engaged with the circuit board (3). The number of the first limiting protrusions (12) is at least two and they are arranged at intervals along the open end of the key cap (1).

6. The key assembly according to claim 1, characterized in that: At least a portion of the keycap (1) is made of a semi-transparent material.

7. An assembly component, characterized in that: A key assembly comprising an elastic member (6), a limiting plate (7) and any one of claims 1 to 6, wherein the limiting plate (7) is located on a side of the circuit board (3) facing away from the display member (2), and the elastic member (6) is located between the limiting plate (7) and the circuit board (3); The key assembly can push the circuit board (3) close to the limiting plate (7) and squeeze the elastic member (6) under the action of an external force, and the elastic member (6) is used to provide an elastic supporting force to the circuit board (3).

8. The assembly component according to claim 7, characterized in that: The limiting plate (7) is provided with a receiving groove (71) for receiving the elastic member (6); And / or, the elastic member (6) is in contact with the circuit board (3).

9. The assembly component according to claim 7, characterized in that: The assembly component further comprises a first mounting shell (8), a key hole (81) being provided on the first mounting shell (8), and the key cap (1) is inserted through the key hole (81) so that the pressing surface is exposed relative to the first mounting shell (8).

10. The assembly component according to claim 9, characterized in that: The first mounting shell (8) is provided with at least two spaced-apart limiting arms (82), and any one of the limiting arms (82) is provided with a through slot (821); The limiting plate (7) is provided with a second limiting protrusion (72) matched with the through slot (821), and the number of the second limiting protrusions (72) is the same as the number of the through slot (821) and is arranged in a one-to-one correspondence.

11. An aerosol generating device, characterized in that: It comprises a battery core (9) and an assembly component according to any one of claims 7 to 10, wherein the battery core (9) is electrically connected to the key assembly.

12. The aerosol generating device according to claim 11, characterized in that It also comprises a second installation shell (10) fixedly connected to the assembly component, and the battery core (9) is located in the second installation shell (10).

13. An aerosol generating device, characterized in that: It comprises a battery core (9) and a key assembly according to any one of claims 1 to 6, wherein the battery core (9) is electrically connected to the key assembly.

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