CN214068608U - Key light guide device and aerosol generating device - Google Patents

Abstract

The utility model relates to an aerosol produces the device field, specifically disclose a button leaded light device and aerosol produces device, through set up transparent support and first light source in the casing, leaded light spare and button set up in the mounting hole on the casing, make first light source in the casing send light back through the support, the support refracts and reflects after based on fluorescent substance and transparent material absorbed light, leaded light spare can be based on the self-luminous absorption of support and corresponds light, let leaded light spare send the light, the annular region of the side formation of illuminating the button, the user can be based on observing annular leaded light spare, find the button that is located leaded light spare center rapidly, avoid under the condition of dark mistake touch and touch black the position of looking for the button, improve user's use and experience. Based on fluorescent substance in the support evenly disperses light, then the support sends even light and jets into the leaded light spare for the luminous effect of leaded light spare is more even, improves the illuminating effect, improves the light source utilization ratio.

Description

Key light guide device and aerosol generating device

Technical Field

The utility model relates to an aerosol produces the device field, in particular to button leaded light device and aerosol produces device.

Background

The aerosol generating device is a portable device for replacing conventional cigarettes, and is generally formed by inserting a cigarette cartridge into a main machine to heat tobacco tar in the cigarette cartridge to form smoke so as to achieve a smoke discharging effect.

In the existing aerosol generating device, the key is arranged on the host to control the host to drive the atomizer to heat based on the key, and the existing aerosol generating device based on the key is inconvenient to check the position of the key due to lack of bright light in a dark environment, so that the phenomenon of mistaken touch is easy to occur.

SUMMERY OF THE UTILITY MODEL

In order to overcome the problem that the phenomenon was touched in the easy emergence mistake of present aerosol generating device, the utility model provides a button leaded light device and aerosol generating device.

The utility model solves the technical problem, and provides a technical scheme as follows: a key light guide device comprises a shell, a support, a light guide piece, a first light source and keys, wherein the support and the first light source are arranged in the shell; the light guide part is annularly arranged on the side surface of the key, and one end of the light guide part extends into the shell; the bracket is arranged on the inner surface of the shell in a surrounding manner, is made of transparent materials, and is internally provided with fluorescent substances; the light emitted by the first light source is reflected by the bracket and then enters the light guide part.

Preferably, the LED lamp further comprises a PCB, wherein the PCB is positioned on the bracket, and the first light source is positioned on the side surface of the PCB corresponding to the light guide piece.

Preferably, the key and/or the housing are made of transparent materials.

Preferably, a plurality of third light sources are further arranged on the PCB, and the plurality of third light sources are arranged in the area of the PCB corresponding to the key; the shell is of a cylindrical structure, the plurality of third light sources are sequentially arranged at equal intervals, and the arrangement direction is parallel to the axis of the shell; the plurality of third light sources are electrically connected with the key, and when the plurality of third light sources are electrified, the plurality of third light sources are sequentially lightened.

Preferably, a second light source is further disposed on a side of the PCB board facing away from the first light source.

Preferably, the support corresponds the side of PCB board is equipped with the constant head tank, constant head tank one end opening, the relative both sides face of PCB board can be based on the opening slides and puts into in the constant head tank.

Preferably, one end of the light guide piece, which is far away from the PCB, is provided with a limiting layer protruding towards the key, and the limiting layer is of an annular structure; a limiting groove is formed in the position, corresponding to the limiting layer, of the key, and the limiting layer is arranged in the limiting groove; and a spring is arranged between the key and the PCB.

Preferably, the PCB is provided with a reflective layer on a surface corresponding to the first light source, and the reflective layer covers the surface of the PCB.

The utility model also provides an aerosol generating device, it includes as above-mentioned arbitrary button leaded light device.

Compared with the prior art, the utility model provides a button leaded light device and aerosol generating device has following advantage:

1. through set up transparent support and first light source in the casing, leaded light spare and button set up in the mounting hole on the casing, make first light source in the casing send light back through the support, the support refracts and reflects after fluorescent substance and transparent material absorb light, make leaded light spare can absorb the light that corresponds based on the self-luminous of support, let leaded light spare send the light, the annular region of the side formation of illuminating the button, make the user can be based on observing annular leaded light spare, find the button that is located leaded light spare center rapidly, avoid under the condition of dark mistake touch and touch black the position of looking for the button, improve user's use and experience. Simultaneously, carry out evenly dispersing to light based on the fluorescent substance in the support, also carry out even light processing back on the light of single light source outgoing, the support sends even light and jets into the leaded light spare for the luminous effect of leaded light spare is more even, improves the illuminating effect, improves the light source utilization ratio. Meanwhile, the annular light guide piece emits bright light, so that the attractiveness of the product is improved and the use experience of a user is improved when the device is used under dark adjustment.

2. The first light source is positioned on the side face, corresponding to the light guide piece, of the PCB, so that part of light emitted by the first light source can be directly incident into the light guide piece, and light guide efficiency is improved.

3. The keys and/or the shell are made of transparent materials, so that the light emitted by the support after absorbing the light emitted by the light source can display bright light based on the transparent keys or the transparent shell. For example, when the casing was transparent material, the support was when the light that launches absorbed luminescence through the leaded light spare, and partial light sees through the outside direct ejection of casing, because the even light effect of support for the light that directly outwards jets out also possesses even outgoing effect, can not lead to the fact the influence to the user. And according to the whole luminous shell, the whole device is more attractive, the use experience of a user is improved, the user can conveniently search the position of the key, and the mistaken touch is avoided. For another example, when the key is made of a transparent material, the key can emit light based on the support, so that a user can directly judge that the key is luminous based on the light, the user can conveniently find the key, and the key is prevented from being touched by mistake.

4. When a user presses the keys, the third light sources are driven to be powered on, so that the third light sources are sequentially lightened, a 'streamer' effect is formed by outward display of the transparent keys, and the visual experience of the user is improved. And simultaneously, the utility model provides a when button leaded light device is applied to among the aerosol generating device, can be based on the "streamer" effect of third light source to suggestion user device's correct direction of use, also playing promoting visual experience when, can give user's operative installations's direction suggestion, further improve user's use and experience.

5. The PCB board still is equipped with the second light source on the one side of keeping away from first light source, and the light that the second light source sent is absorbed by the support that corresponds the region, further improves the intensity that the support absorbed light, has also made first light source in the unable back of lighting up of trouble, and the support still can make the leaded light spare light through the light that absorbs the second light source, improves the stability that the device used.

6. Through setting up the constant head tank for when the user when the installation PCB board, can put into the constant head tank that corresponds respectively with the both sides face of PCB board, it is fixed to push into the PCB board based on the opening and accomplish, and simple structure is convenient for assemble, improves the production efficiency of product.

7. Through setting up spacing groove and spacing layer for when the button slides to the direction of keeping away from the PCB board under the effect based on the spring, the spacing groove removes until supporting on spacing layer, with the removal of restriction button, avoids the accident of button to drop, improves the stability of product use.

8. The quantity of first light source is a plurality of, and a plurality of first light source arrays set up on the PCB board to improve the emergent efficiency of light, increase the luminance of leaded light spare.

9. The PCB board is equipped with the reflector layer on the surface that corresponds first light source for the light that first light source side was sent, and reflect away once more at the light of support part reflection based on the reflector layer, improve the utilization ratio of light source, make and have higher light outgoing effect under equal luminous power.

Drawings

Fig. 1 is a schematic structural diagram of a key light guide device according to a first embodiment of the present invention.

Fig. 2 is a schematic structural view of a middle light guide member and a key side of a key light guide device according to a first embodiment of the present invention.

Fig. 3 is a schematic structural view of a middle support positioning PCB board of a key light guide device according to a first embodiment of the present invention.

Fig. 4 is a schematic structural diagram of the key light guide device according to the first embodiment of the present invention when the first light source and the second light source emit light.

Fig. 5 is a schematic structural diagram of a key light guide device according to a first embodiment of the present invention, in which a third light source is linearly arranged.

Fig. 6 is a schematic structural diagram of the first embodiment of the present invention when the third light sources are annularly arranged.

Fig. 7 is a schematic structural view of a limiting groove and a limiting layer in a key light guide device according to a first embodiment of the present invention.

Fig. 8 is a flowchart of a key light guiding method according to a second embodiment of the present invention.

Fig. 9 is a schematic structural view of an aerosol-generating device according to a third embodiment of the present invention.

Description of reference numerals:

1-a key light-guiding device,

11-housing, 111-mounting hole,

12-a bracket, 121-a positioning groove,

13-light guide, 131-fixed hook, 132-spacing layer,

14-a first light source, 15-a key, 151-a limiting groove, 16-a PCB, 17-a second light source and 18-a third light source.

Detailed Description

The following detailed description of the present invention is provided in conjunction with the accompanying drawings, but it should be understood that the scope of the present invention is not limited by the following detailed description.

Please refer to fig. 1, fig. 2 and fig. 3, a first embodiment of the present invention provides a key light guide device 1, which includes a housing 11, a bracket 12, a light guide member 13, a first light source 14 and a key 15, wherein the bracket 12 and the first light source 14 are disposed in the housing 11, the housing 11 is provided with a mounting hole 111, and the light guide member 13 and the key 15 are disposed in the mounting hole 111.

The light guide 13 is disposed around the side of the key 15, one end of the light guide 13 extends into the housing 11, and light emitted from the first light source 14 in the housing 11 can penetrate through the light guide 13, so that the light guide 13 emits light.

It can be understood that the side of the key 15 is the side area where the user presses the surface of the key 15, and the light guide 13 is disposed around the side of the key 15 to serve as an indication of the position of the key 15 when emitting light.

The bracket 12 is disposed around the inner surface of the casing 11, the bracket 12 is made of a transparent material, a fluorescent material is disposed in the bracket 12, and light emitted from the first light source 14 is reflected by the bracket 12 and then emitted into the light guide 13. Specifically, the fluorescent substance in the holder 12 may be a phosphor.

It can be understood, first light source 14 in casing 11 sends light back through support 12, support 12 refracts and reflects after absorbing light based on fluorescent substance and transparent material, make leaded light spare 13 can absorb the light that corresponds based on the self-luminous of support 12, let leaded light spare 13 send the light, the annular region of the side formation of lighting up button 15, make the user can be based on observing annular leaded light spare 13, find the button 15 that is located leaded light spare 13 center rapidly, avoid under the condition of dark mistake touch and feel black and look for the position of button 15, improve user's use and experience. Simultaneously, carry out evenly dispersing to light based on the fluorescent substance in the support 12, also carry out even light processing back on the light of single light source outgoing, support 12 sends even light and jets into light guide 13 for light guide 13's luminous effect is more even, improves the illuminating effect, improves the light source utilization ratio. Meanwhile, the annular light guide part 13 emits light, so that the attractiveness of the product is improved and the use experience of a user is improved when the product is used under dark adjustment.

It can be understood that a part of the light emitted from the first light source 14 can also be directly emitted into the light guide 13, so as to improve the efficiency of the light guide 13 for absorbing the light. The first light source 14 can be disposed in any region of the housing 11, so long as the light emitted from the first light source 14 passes through the bracket 12 and then enters the light guide 13.

With continuing to refer to fig. 1 and fig. 2, the key light guide device 1 further includes a PCB 16, the PCB 16 is positioned on the support 12, and the first light source 14 is positioned on a side surface of the PCB 16 corresponding to the light guide member 13, so that a portion of light emitted by the first light source 14 can be directly incident into the light guide member 13, thereby improving light guide efficiency.

The PCB 16 still is equipped with second light source 17 on deviating from first light source 14 one side, and the light that second light source 17 sent is absorbed by the support 12 of corresponding region, further improves the intensity that support 12 absorbed light, has also made first light source 14 after the trouble can't be lighted, and support 12 still can make light guide member 13 light through the light that absorbs second light source 17, improves the stability that the device used.

As shown in fig. 4, the first light source 14 is located on the PCB 16 and the second light source 17 is located on the other side of the PCB, wherein the first light source 14 emits light in the a direction, the second light source 17 emits light in the b direction, which is respectively emitted into the bracket 12 from two sides of the PCB 16, and a part of the light sources in the first light source 14 is directly emitted into the light guide member 13, that is, the tubular structure of the bracket 12 is uniformly irradiated under the cooperation of the first light source 14 and the second light source 17 respectively located on two sides of the PCB 16, so that each region of the bracket 12 has light absorption, the efficiency of light absorption of the bracket 12 is improved, and the light guide efficiency of the light guide member 13 is also ensured.

Optionally, as an embodiment, the key 15 and/or the housing 11 are made of a transparent material, so that the light emitted from the bracket 12 after absorbing the light emitted from the light source can display a bright light based on the transparent key 15 or the transparent housing 11. For example, when the housing 11 is made of a transparent material, the light emitted from the support 12 is absorbed by the light guide 13 and emitted, and at the same time, a part of the light is directly emitted through the housing 11, and due to the light-equalizing effect of the support 12, the light emitted directly outwards also has a uniform emission effect, and thus, the user is not affected. And according to the whole luminous shell 11, the whole device is more attractive, the use experience of a user is improved, the user can conveniently search the position of the key 15, and the mistaken touch is avoided. For another example, when the key 15 is made of a transparent material, the key 15 may emit a bright light based on the support 12, so that the user may directly determine that the key 15 is luminous based on the bright light, thereby facilitating the user to find the key 15 and avoiding a false touch.

Optionally, as another embodiment, the number of the first light sources 14 is multiple, and the multiple first light sources 14 are arranged on the PCB 16 in an array manner, so as to improve the light emitting efficiency and increase the brightness of the light guide 13.

Optionally, as another embodiment, the PCB 16 is provided with a light reflecting layer (not shown) on the surface corresponding to the first light source 14, and the light reflecting layer covers the surface of the PCB 16. The light emitted from the side surface of the first light source 14 and the light partially reflected by the bracket 12 are reflected again based on the reflective layer, so that the utilization rate of the light source is improved, and a higher light emitting effect is achieved under the same light emitting power.

It will be appreciated that the PCB 16 is provided with a light reflecting layer on the surface corresponding to the first light source 14, i.e. the PCB 16 is provided with a light reflecting layer on the surface outside the first light source 14, so as to reflect light incident on the surface of the PCB 16. Similarly, the reflective layer may be disposed on the surface of the PCB 16 corresponding to the second light source 17, which is not described herein again.

It can be understood that, in this embodiment, the first light source 14 and the second light source 17 may use LED beads as light emitting sources.

It can be understood that, in the present embodiment, when the light emitted from the first light source 14 enters the support 12, a part of the light is reflected by the support 12 and re-emitted onto the PCB 16, and at this time, a reflective layer is added on the PCB 16, so that the reflected light can be reflected back into the support 12 again, so as to improve the utilization rate of the light. Meanwhile, when the light emitted by the first light source 14 irradiates other electronic devices in the support 12, the light can also emit, reflect and refract, and can be reflected again through the reflecting layer based on the light reflected and refracted at the moment, so that the light utilization rate is further improved, and the light emitting effect is increased.

Optionally, please refer to fig. 4 and 5, as another embodiment, a plurality of third light sources 18 are further disposed on the PCB 16, the plurality of third light sources 18 are disposed in an area of the PCB 16 corresponding to the key 15, and when the plurality of third light sources 18 are turned on, the third light sources 18 emit preset light through the key 15 based on the transparent key 15.

Specifically, the housing 11 has a cylindrical structure, and the plurality of third light sources 18 are sequentially arranged at equal intervals in a direction parallel to the axis of the housing 11. The plurality of third light sources 18 are electrically connected to the key 15, and when the plurality of third light sources 18 are energized, the plurality of third light sources 18 are sequentially turned on.

It can be understood that when the user presses the key 15, the third light sources 18 are driven to be powered on, so that the plurality of third light sources 18 are sequentially lighted up, and a "streamer" effect is formed by the outward display of the transparent key 15, thereby increasing the visual experience of the user. And simultaneously, the utility model provides a when button leaded light device 1 is applied to among the aerosol generating device, can be based on the "streamer" effect of third light source 18 to suggestion user device's correct direction of use, also playing promoting visual experience in, can give user's operative installations's direction suggestion, further improve user's use and experience.

Optionally, as another embodiment, the plurality of third light sources 18 are composed of a plurality of LED lamp beads with different colors, and when the third light sources 18 are powered on, different brightness can be displayed based on the plurality of LED lamp beads with different colors, so as to obtain a colorful display effect, improve the attractiveness of the device in use, and increase the use experience of users.

In some other embodiments, as shown in fig. 6, the plurality of third light sources 18 are arranged in a ring shape, when the plurality of third light sources 18 are sequentially turned on, a ring-shaped rotation effect may be displayed, and based on the effect, the current state of the device in charging or shortage state may be displayed as a display mode for reminding the user.

Referring to fig. 1, a fixing hook 131 is disposed at an end of the light guide 13 close to the inside of the housing 11, and the fixing hook 131 abuts against the support 12, so that the light guide 13 can be fastened to the support 12 based on the fixing hook 131, and the side surface of the light guide 13 contacts the support 12 based on the fixing hook 131, so that light received by the support 12 can be incident into the light guide 13 based on the side surface, thereby further improving the light guiding efficiency of the light guide 13.

It is understood that the light guide 13 is detachably coupled to the housing 11 based on the fixing hook 131.

Referring to fig. 3, the side of the bracket 12 corresponding to the PCB 16 is provided with a positioning groove 121, an opening p is formed at one end of the positioning groove 121, and two opposite sides of the PCB 16 can be slidably disposed in the positioning groove 121 based on the opening p.

It can be understood that the quantity of constant head tank 121 is two, and two constant head tanks 121 set up relatively, when the user when installation PCB board 16, can put into corresponding constant head tank 121 respectively with PCB board 16's both sides face, push PCB board 16 based on opening p and accomplish fixedly, simple structure, the assembly of being convenient for improves the production efficiency of product.

Referring to fig. 7, a limiting layer 132 protruding toward the key 15 is disposed at an end of the light guide 13 away from the PCB 16, and the limiting layer 132 is an annular structure. Correspondingly, a limiting groove 151 is formed in the position, corresponding to the limiting layer 132, of the key 15, and the limiting layer 132 is arranged in the limiting groove 151. Springs (not shown) are provided between the keys 15 and the PCB board 16. Make button 15 be located on casing 11 under the effect based on spring and spacing layer 132, and have the resilience force, release after the user presses button 15, button 15 is based on the elastic force resilience, and then can not pop out outside the device under the limiting displacement based on spacing layer 132. Meanwhile, due to the arrangement of the limiting layer 132 and the 151 of the recessed structure, when the key 15 is in an unstressed state, under the action of elastic force of the spring, the limiting layer 132 abuts against the 151 of the recessed structure, and the key 15 cannot protrude from the surface of the shell 11, so that the surface of the device is smoother, and the attractiveness of the product is improved.

When the key 15 slides in a direction away from the PCB 16 under the action of the spring, the limiting groove 151 moves until abutting against the limiting layer 132 to limit the movement of the key 15, thereby preventing the key 15 from accidentally dropping and improving the stability of the product in use.

Referring to fig. 8, a second embodiment of the present invention provides a key light guiding method, which specifically includes the following steps:

step S1: pressing a key to control the first light source to light;

step S2: the first light source emits light to the periphery, and the light is absorbed by a bracket arranged around the first light source;

step S3: the bracket homogenizes light rays based on the fluorescent substance; and

step S4: the light guide member absorbs the light from the support and then emits uniform light.

It is understood that in step S1, the first light source 14 is driven to light by pressing the key 15.

It is understood that in step S2, the frame 12 is disposed around the outer periphery of the first light source 14, and when the first light source 14 is turned on, all the light emitted by the first light source 14 is absorbed by the frame 12.

It is understood that in step S3, the support 12 is made of transparent material, and fluorescent material is disposed in the support 12 to homogenize the absorbed light based on the fluorescent material, so as to obtain more uniform brightness.

It can be understood that, in step S3, the light is homogenized by providing the fluorescent material, so that in the housing 11, the light emitted by the first light source 14 is first subjected to the homogenizing treatment, thereby avoiding the effect of uneven light due to different distances and angles of the light emitted by the first light source 14 to the periphery, and avoiding the generation of "dark spots".

It can be understood that in step S4, the light guide 13 absorbs the light from the support 12 and emits uniform light to the outside, and the light guide 13 is disposed around the outer periphery of the key 15 to form a uniform annular light ring.

It can be understood, the utility model discloses the button leaded light method that the second embodiment provided is particularly useful for in the button leaded light device in the aerosol production device, it is through setting up annular leaded light piece 13 according to the key region, at first absorb based on support 12 after sending light in the device, through the fluorescent substance in the transparent support 12, carry out even light processing to absorptive light, in order to send even light, on light emission to leaded light piece 13 after will even light processing again, make annular leaded light piece 13 send even light to the user, the leaded light effect has been improved, avoid because the leaded light effect that the light scattering leads to is relatively poor, the inhomogeneous problem of leaded light, improve user's use experience.

Referring to fig. 9, a third embodiment of the present invention provides an aerosol generating device 2, which includes a host 21, an atomizer 22 and a key light guide device 1 as provided in the first embodiment, wherein the key light guide device 1 is plugged into the host, the atomizer is electrically connected to the key light guide device 1, and the key light guide device 1 is used to control the host to provide electric energy to the atomizer.

For example, in the present embodiment, the power supply of the control host can be determined based on the number of times the key 15 is pressed, for example, two times of pressing are designated as the control host to output low power to the atomizer to generate aerosol with low amount and light taste, three times of pressing are designated as the control host to output medium power to the atomizer to generate aerosol with medium amount and medium taste, and at the same time, the light guide 13 can display different colors and/or brightness based on the difference of the power output by the host.

As another example, the switch function can be implemented based on pressing the key 15 to drive or stop the host to supply power to the atomizer, and the light guide 13 displays different colors in different switch states to prompt the user of the current power supply state.

Compared with the prior art, the utility model provides a button leaded light device has following advantage:

through set up transparent support and first light source in the casing, leaded light spare and button set up in the mounting hole on the casing, make first light source in the casing send light back through the support, the support refracts and reflects after fluorescent substance and transparent material absorb light, make leaded light spare can absorb the light that corresponds based on the self-luminous of support, let leaded light spare send the light, the annular region of the side formation of illuminating the button, make the user can be based on observing annular leaded light spare, find the button that is located leaded light spare center rapidly, avoid under the condition of dark mistake touch and touch black the position of looking for the button, improve user's use and experience. Simultaneously, carry out evenly dispersing to light based on the fluorescent substance in the support, also carry out even light processing back on the light of single light source outgoing, the support sends even light and jets into the leaded light spare for the luminous effect of leaded light spare is more even, improves the illuminating effect, improves the light source utilization ratio. Meanwhile, the annular light guide piece emits bright light, so that the attractiveness of the product is improved and the use experience of a user is improved when the device is used under dark adjustment.

The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. It is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the invention and its practical application to enable one skilled in the art to make and use various exemplary embodiments of the invention and various alternatives and modifications as are suited to the particular use contemplated. It is intended that the scope of the invention be defined by the claims and their equivalents.

Claims (9)

1. A key light guide device is characterized in that: the LED lamp comprises a shell, a support, a light guide piece, a first light source and a key, wherein the support and the first light source are arranged in the shell, the shell is provided with a mounting hole, and the light guide piece and the key are arranged in the mounting hole;

the light guide part is annularly arranged on the side surface of the key, and one end of the light guide part extends into the shell;

the bracket is arranged on the inner surface of the shell in a surrounding manner, is made of transparent materials, and is internally provided with fluorescent substances;

the light emitted by the first light source is reflected by the bracket and then enters the light guide part.

2. A key light guide device as claimed in claim 1, wherein: still include the PCB board, the PCB board is located on the support, first light source is located the PCB board corresponds on the side of leaded light spare.

3. A key light guide device as claimed in claim 2, wherein: the key and/or the shell are made of transparent materials.

4. A key light guide device as claimed in claim 3, wherein: the PCB is also provided with a plurality of third light sources, and the plurality of third light sources are arranged in the area of the PCB corresponding to the key;

the shell is of a cylindrical structure, the plurality of third light sources are sequentially arranged at equal intervals, and the arrangement direction is parallel to the axis of the shell;

the plurality of third light sources are electrically connected with the key, and when the plurality of third light sources are electrified, the plurality of third light sources are sequentially lightened.

5. A key light guide device as claimed in claim 2, wherein: and a second light source is also arranged on one side of the PCB, which is away from the first light source.

6. A key light guide device as claimed in claim 2, wherein: the support corresponds the side of PCB board is equipped with the constant head tank, constant head tank one end opening, the relative both sides face of PCB board can be based on the opening slides and puts into in the constant head tank.

7. A key light guide device as claimed in claim 2, wherein: one end of the light guide piece, which is far away from the PCB, is provided with a limiting layer protruding towards the direction of the key, and the limiting layer is of an annular structure;

a limiting groove is formed in the position, corresponding to the limiting layer, of the key, and the limiting layer is arranged in the limiting groove;

and a spring is arranged between the key and the PCB.

8. A key light guide device as claimed in claim 2, wherein: the PCB is provided with a reflecting layer on the surface corresponding to the first light source, and the reflecting layer covers the surface of the PCB.

9. An aerosol generating device, comprising: comprising a key light guide according to any one of claims 1-8.

Images