Scent release devices and electronic devices

Abstract

The present disclosure provides an odor release device and electronic device, belonging to the field of odor release. The odor release device includes an air supply portion and a material box portion; the material box portion has one or more material cavities for accommodating odor materials; the odor release device also includes a first control valve and a second control valve corresponding to each of the material cavities; the outlet of the air supply portion is connected to the material cavity via the first control valve, and the material cavity is connected to the outside via the second control valve; wherein the air supply portion includes a plurality of microvalves connected in series, and the first control valve is a microvalve; any one of the microvalves includes a deformable diaphragm arranged in an airflow channel and a static electrode arranged corresponding to the deformable diaphragm; the deformable diaphragm is used to deform under the action of the electrostatic force with the static electrode, thereby opening or closing the airflow channel. The odor release device can be miniaturized.

Description

Technical Field

[0001] The present disclosure relates to the technical field of odor release, and in particular to an odor release device and an electronic device. Background Art

[0002] Using some scent dispersing devices (such as fragrance releasing devices, etc.) can make people feel relaxed and happy. As people's pursuit of quality of life improves, many devices that can release scents have appeared in life, with various types and functions.

[0003] However, the fragrance release device in the related art is large in size and difficult to miniaturize.

[0004] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present disclosure, and therefore may include information that does not constitute prior art known to ordinary technicians in the field. Summary of the Invention

[0005] The purpose of the present disclosure is to overcome the above-mentioned deficiencies of the prior art and provide an odor release device and an electronic device, so that the odor release device is miniaturized.

[0006] According to a first aspect of the present disclosure, there is provided an odor release device, comprising an air supply portion and a material box portion; the material box portion having one or more material chambers for accommodating odorous material; the odor release device further comprising a first control valve and a second control valve corresponding to each of the material chambers; the outlet of the air supply portion being connected to the material chamber via the first control valve, and the material chamber being in communication with the outside via the second control valve;

[0007] Wherein, the air supply portion includes a plurality of microvalves connected in series, and the first control valve is a microvalve;

[0008] Any of the microvalve comprises a deformable diaphragm arranged in the air flow channel and a static electrode arranged corresponding to the deformable diaphragm; the deformable diaphragm is used to deform under the action of the electrostatic force with the static electrode, thereby opening or closing the air flow channel.

[0009] According to one embodiment of the present disclosure, the odor release device includes a driving layer, a diaphragm layer, and a channel layer stacked in sequence;

[0010] In the area where any of the microvalve is located, the odor release device is provided with an avoidance groove corresponding to the microvalve, a static electrode, a first airflow sub-channel, a second airflow sub-channel, a deformable diaphragm and a partition structure;

[0011] The avoidance groove is provided in the driving layer and opens toward the diaphragm layer, and the static electrode is at least partially provided at the bottom of the avoidance groove; the deformable diaphragm is provided in the diaphragm layer and overlaps with the avoidance groove; the first airflow sub-channel, the second airflow sub-channel and the partition structure are provided in the channel layer, and the partition structure is located on both sides of the first airflow sub-channel and the second airflow sub-channel;

[0012] In a first state, the deformable membrane is attached to the partition structure to block the communication between the first airflow sub-channel and the second airflow sub-channel;

[0013] In the second state, gaps are formed between the deformable membrane and the first airflow sub-channel, the second airflow sub-channel, and the partition structure, so that the first airflow sub-channel and the second airflow sub-channel are connected.

[0014] According to one embodiment of the present disclosure, the driving layer includes a supporting substrate and a groove layer sandwiched between the supporting substrate and the diaphragm layer;

[0015] The static electrode is arranged on a surface of the support substrate close to the diaphragm layer, and the groove layer is provided with an escape opening for exposing the static electrode.

[0016] According to one embodiment of the present disclosure, the driving layer includes a first substrate and a first adhesive layer, and the first substrate is bonded to the diaphragm layer through the first adhesive layer;

[0017] The avoidance groove is formed on the surface of the first substrate close to the diaphragm layer, and the static electrode is at least partially disposed at the bottom of the avoidance groove; the first adhesive layer has a avoidance opening exposing the avoidance groove.

[0018] According to one embodiment of the present disclosure, the diaphragm layer includes a flexible film and a movable electrode disposed on the flexible film; the movable electrode is overlapped with the corresponding static electrode.

[0019] According to one embodiment of the present disclosure, the channel layer is provided with a plurality of channel cavities serving as sub-channels, and the channel cavities open toward the diaphragm layer; in the two connected microvalves, the second airflow sub-channel of the former microvalve and the first airflow sub-channel of the latter microvalve are the same channel cavity.

[0020] According to one embodiment of the present disclosure, the channel layer includes a second adhesive layer, a second substrate, a cavity layer, and a third substrate stacked in sequence on a side of the diaphragm layer away from the driving layer;

[0021] Wherein, the microvalve is provided with an air inlet and an air outlet on the second substrate, and is provided with the partition structure located between the air inlet and the air outlet;

[0022] The second adhesive layer has an avoidance opening to avoid the air inlet, the air outlet and the partition structure;

[0023] The cavity layer is provided with a channel cavity; in the two connected microvalves, the air inlet of one microvalve and the air outlet of the other microvalve are connected to the same channel cavity;

[0024] The third substrate covers the cavity layer.

[0025] According to an embodiment of the present disclosure, the air inlet hole of the first microvalve of the air supply portion is connected to the outside through the air hole penetrating the cavity layer and the air hole penetrating the third substrate.

[0026] According to one embodiment of the present disclosure, the odor release device has an installation cavity, and the material box part is installed in the installation cavity.

[0027] According to one embodiment of the present disclosure, the material box portion includes a flexible mounting seat and a material box; the flexible mounting seat passes through the mounting cavity and is engaged with the surrounding structure; the material box is arranged in the accommodating cavity of the flexible mounting seat.

[0028] According to one embodiment of the present disclosure, the channel layer is formed with the material cavity.

[0029] According to one embodiment of the present disclosure, the cavity layer is further formed with the material cavity;

[0030] The air outlet of the first control valve is communicated with the material chamber;

[0031] The air inlet of the second control valve is communicated with the material chamber;

[0032] The air outlet of the second control valve is communicated with the outside through the air hole penetrating the cavity layer and the air hole penetrating the third substrate.

[0033] According to one embodiment of the present disclosure, the material cavity includes a first material cavity and a second material cavity;

[0034] The odor release device includes a first island portion and a second island portion; the first island portion is provided with the air supply portion and the first material chamber, and is provided with a first control valve and a second control valve corresponding to the first material chamber; the second island portion is provided with the second material chamber, and is provided with a first control valve and a second control valve corresponding to the second material chamber;

[0035] The outlet of the second control valve corresponding to the first material chamber can be connected to the inlet of the first control valve corresponding to the second material chamber through an air pipe.

[0036] According to one embodiment of the present disclosure, the channel layer is discontinuous between the first island portion and the second island portion.

[0037] According to an embodiment of the present disclosure, the second control valve is a micro valve, and the odor release device further includes a piezoelectric valve, the inlet of the piezoelectric valve is connected to the outlet of the second control valve; or, the second control valve is a piezoelectric valve.

[0038] According to an embodiment of the present disclosure, the odor releasing device includes one or more air supply parts; the odor releasing device includes one or more material box parts.

[0039] According to a second aspect of the present disclosure, an electronic device is provided, comprising the odor releasing device.

[0040] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] The accompanying drawings are incorporated into and constitute a part of the specification, illustrate embodiments consistent with the present disclosure, and together with the specification, are used to explain the principles of the present disclosure. Obviously, the drawings described below are only some embodiments of the present disclosure, and those skilled in the art can derive other drawings based on these drawings without inventive effort.

[0042] Figure 1 This is a schematic structural diagram of an odor release device in one embodiment of the present disclosure.

[0043] Figure 2 This is a schematic structural diagram of an odor release device in one embodiment of the present disclosure.

[0044] Figure 3 This is a schematic structural diagram of an odor release device in one embodiment of the present disclosure.

[0045] Figure 4 This is a schematic structural diagram of an odor release device in the first example of the present disclosure.

[0046] Figure 5 This is a schematic diagram of the principle of closing the microvalve in one embodiment of the present disclosure.

[0047] Figure 6 This is a schematic diagram of the principle of opening a microvalve in one embodiment of the present disclosure.

[0048] Figure 7 This is a schematic structural diagram of the supporting substrate in the first example of the present disclosure.

[0049] Figure 8 This is a schematic structural diagram of the tank layer in the first example of the present disclosure.

[0050] Figure 9 This is a schematic structural diagram of the diaphragm layer in the first example of the present disclosure.

[0051] Figure 10 This is a structural diagram of the channel layer in the first example of the present disclosure.

[0052] Figure 11 This is a schematic structural diagram of the flexible mounting base in the first example of the present disclosure.

[0053] Figure 12 This is a schematic structural diagram of the material box in the first example of the present disclosure.

[0054] Figure 13 This is a schematic diagram of the three-dimensional structure of the odor release device in the second example of the present disclosure.

[0055] Figure 14 This is a schematic diagram of the explosion structure of the odor release device in the second example of the present disclosure.

[0056] Figure 15 This is a schematic cross-sectional structural diagram of the first island portion in the second example of the present disclosure.

[0057] Figure 16 This is a schematic cross-sectional structural diagram of the second island portion in the second example of the present disclosure.

[0058] Figure 17 This is a schematic structural diagram of the first electrode strips on the first substrate in the second example of the present disclosure.

[0059] Figure 18 Schematic diagram of the structure of the second electrode strip on the membrane layer in the second example of the present disclosure.

[0060] Figure 19 Schematic diagram of the structure of a piezoelectric valve in one embodiment of the present disclosure.

[0061] Figure 20 Schematic diagram of the explosion structure of a piezoelectric valve in one embodiment of the present disclosure. DETAILED DESCRIPTION

[0062] Example embodiments will now be described more fully with reference to the accompanying drawings. However, the example embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete and will fully convey the concepts of the example embodiments to those skilled in the art. Like reference numerals in the figures represent identical or similar structures, and thus their detailed descriptions will be omitted. Furthermore, the figures are merely schematic illustrations of the present disclosure and are not necessarily drawn to scale.

[0063] Although relative terms such as "upper" and "lower" are used in this specification to describe the relationship of one illustrated component to another, these terms are used herein for convenience only, such as in accordance with the orientation of the illustrations in the accompanying drawings. It will be understood that if the illustrated device were flipped upside down, the component described as "upper" would become the component "lower." When a structure is referred to as "on" another structure, this may mean that the structure is integrally formed with the other structure, that the structure is "directly" disposed on the other structure, or that the structure is "indirectly" disposed on the other structure via the other structure.

[0064] The terms "a", "an", "the", "said" and "at least one" are used to indicate the presence of one or more elements / components / etc.; the terms "including" and "having" are used to express open-ended inclusion and mean that additional elements / components / etc. may be present in addition to the listed elements / components / etc.; the terms "first", "second", etc. are used only as labels and are not intended to limit the quantity of their objects.

[0065] The present disclosure provides an odor releasing device for controlling the release of odor. Figures 1 to 3 The odor release device includes an air supply unit 100 and a material container 200. The material container 200 has one or more material chambers CB for containing odorous material. The odor release device also includes a first control valve 301 and a second control valve 302 corresponding to each material chamber CB. The outlet of the air supply unit 100 is connected to the material chamber CB via the first control valve 301, and the material chamber CB is connected to the outside via the second control valve 302.

[0066] The gas supply unit 100 is used to provide gas (e.g., air) to the material chamber CB. The first and second control valves 301 and 302 are used to control the flow of gas into and out of the material chamber CB. When the gas flows out of the material chamber CB, driven by the gas supply unit 100, it carries with it odor molecules emitted by the odorous material in the material chamber CB, thereby releasing a specific odor. It should be understood that when the material box portion 200 includes multiple material chambers CB, the odorous materials in any two material chambers CB can be the same or different.

[0067] exist Figure 1 In the example, the odor release device is provided with a material box portion 200, which is provided with three parallel material chambers CB. The odor release device is provided with an air supply portion 100, and the outlet of the air supply portion 100 is simultaneously connected to the inlet of the first control valve 301 corresponding to the three material chambers CB.

[0068] exist Figure 2 In the example of FIG, the odor release device is provided with a material box portion 200 and two air supply portions 100, wherein the material box portion 200 has two material chambers CB. The inlets of the first control valves 301 corresponding to the two material chambers CB are connected to the outlets of the two air supply portions 100 respectively.

[0069] exist Figure 3 In the example, the odor release device is equipped with a first material box portion 201 and a second material box portion 202, as well as two air supply units 100. The first material box portion 201 is provided with two material chambers CB, and the second material box portion 202 is provided with four material chambers CB. The inlets of the first control valve 301 corresponding to the two material chambers CB of the first material box portion 201 are respectively connected to the outlets of the two air supply units 100; and the outlets of the first control valve 301 corresponding to the two material chambers CB of the first material box portion 201 are respectively connected to the inlets of the first control valve 301 corresponding to the two material chambers CB of the second material box portion 202. In one material loading mode, the material chambers CB of the first material box portion 201 can be empty, allowing the odor release device to be loaded with four different odor materials. In another material loading mode, each material chamber CB driven by the same air supply unit 100 can be filled with the same odor material, allowing the odor release device to be loaded with two odor materials. Of course, other odor material loading modes are also possible.

[0070] It is understandable that the above Figures 1 to 3In the examples, the number of material box sections 200, the number of material cavities CB, the number of air supply sections 100, the connection method between the material cavities CB, and the connection method between the material cavities CB and the air supply section 100 are illustrated. These are merely some examples of the embodiments of the present disclosure. In other embodiments of the present disclosure, the odor release device may be provided with one or more air supply sections 100, or one or more material box sections 200, each of which may be provided with one or more material cavities CB. The connection relationship between the material cavities CB, between the material cavities CB and the air supply section 100, and between the air supply sections 100 can be configured as needed.

[0071] See also Figure 4 and Figure 14 The air supply unit 100 includes multiple microvalves 101 connected in series, and the first control valve 301 is a microvalve. Each microvalve 101 includes a deformable diaphragm MM disposed in the airflow channel and a static electrode 401 corresponding to the deformable diaphragm MM. The deformable diaphragm MM is configured to deform under the electrostatic force of the static electrode 401, thereby opening or closing the airflow channel.

[0072] In the disclosed embodiment, the microvalve 101 deforms via the electrostatic force between the deformable diaphragm MM and the static electrode 401, thereby opening or closing the microvalve 101. Therefore, the microvalve 101 has the advantages of a simple structure and a compact size, which helps reduce the size of the odor release device and facilitates its deployment on electronic devices. Optionally, the air supply unit 100 includes three or more microvalves 101 connected in series. This allows each microvalves 101 to open sequentially, thereby achieving peristaltic air supply.

[0073] See also Figure 4 and Figure 14 , the odor release device may include a driving layer XA, a membrane layer MML and a channel layer XB which are stacked in sequence;

[0074] In the area where any of the microvalve 101 is located, the odor release device is provided with an avoidance groove CV corresponding to the microvalve 101, a static electrode 401, a first airflow sub-channel TBA, a second airflow sub-channel TBB, a deformable diaphragm MM and a partition structure PA;

[0075] The avoidance groove CV is provided in the driving layer XA and opens toward the diaphragm layer MML. The static electrode 401 is at least partially provided at the bottom of the avoidance groove CV. The deformable diaphragm MM is provided in the diaphragm layer MML and overlaps with the avoidance groove CV. The first airflow sub-channel TBA, the second airflow sub-channel TBB, and the partition structure PA are provided in the channel layer XB, and the partition structure PA is located on both sides of the first airflow sub-channel TBA and the second airflow sub-channel TBB.

[0076] In the first state, the deformable membrane MM is attached to the partition structure PA to block the communication between the first airflow sub-channel TBA and the second airflow sub-channel TBB;

[0077] In the second state, gaps are formed between the deformable membrane MM and the first airflow sub-channel TBA, the second airflow sub-channel TBB and the partition structure PA, so that the first airflow sub-channel TBA and the second airflow sub-channel TBB are connected.

[0078] In this embodiment, the first air flow sub-channel TBA may serve as an air inlet channel of the microvalve 101 , and the second air flow sub-channel TBB may serve as an air outlet channel of the microvalve 101 .

[0079] In one example, the membrane layer MML includes a flexible film and a movable electrode 402 disposed on the flexible film; the movable electrode 402 overlaps the corresponding static electrode 401. The membrane layer MML is located in the area where the microvalve 101 is located and serves as the deformable membrane MM of the microvalve 101.

[0080] See also Figure 5 In the first state, when the static electrode 401 and the movable electrode 402 are loaded with voltages of the same electrical polarity, for example, when both are loaded with positive voltages or negative voltages, the static electrode 401 exerts an electrostatic repulsive force on the movable electrode 402, causing the deformable diaphragm MM to deform away from the static electrode 401. During this deformation process, the deformable diaphragm MM adheres to the partition structure PA, thereby blocking the air path between the first airflow sub-channel TBA and the second airflow sub-channel TBB, and the microvalve 101 is closed.

[0081] See also Figure 6 In the second state, voltages of opposite polarity are applied to the static electrode 401 and the movable electrode 402. For example, when one is positive and the other is negative, the static electrode 401 applies an electrostatic attraction to the movable electrode 402, causing the deformable diaphragm MM to deform toward the side closer to the static electrode 401. During this deformation, a gap forms between the deformable diaphragm MM and the partition structure PA, thereby connecting the first airflow sub-channel TBA and the second airflow sub-channel TBB, and the microvalve 101 opens.

[0082] In the embodiment of the present disclosure, the driving layer XA may realize the avoidance groove CV through a one-layer structure, or may realize the avoidance groove CV through the cooperation of two-layer structures or more-layer structures.

[0083] In the first implementation of the driver layer XA, see Figure 4 、 Figure 7 and Figure 8 The drive layer XA includes a support substrate XA1 and a tank layer XA2 sandwiched between the support substrate XA1 and the membrane layer MML. The static electrode 401 is disposed on the surface of the support substrate XA1 near the membrane layer MML, and the tank layer XA2 is provided with an escape opening that exposes the static electrode 401 to serve as a escape groove CV. In this embodiment, the escape opening serves as the main portion of the escape groove CV, and the surface of the support substrate XA1 exposed by the escape opening serves as the bottom of the escape groove CV. Therefore, by adjusting the thickness of the tank layer XA2, the depth of the escape groove CV can be adjusted.

[0084] In the second implementation of the driver layer XA, see Figure 14 、 Figure 15 and Figure 16 The drive layer XA includes a first substrate BPA and a first adhesive layer FA. The first substrate BPA is bonded to the diaphragm layer MML via the first adhesive layer FA. The surface of the first substrate BPA near the diaphragm layer MML is provided with the escape groove CV, and the static electrode 401 is at least partially disposed at the bottom of the escape groove CV. The first adhesive layer FA has an escape opening CG1 that exposes the escape groove CV. In this embodiment, the surface of the first substrate BPA near the diaphragm layer MML is not smooth, but rather has the escape groove CV formed by grooving, cutting, or other patterning methods.

[0085] In one example, the first adhesive layer FA may be a double-sided tape.

[0086] In an example, the thickness of the first adhesive layer FA may be 5 to 15 micrometers, for example, 10 micrometers.

[0087] In one example, the static electrode 401 may be disposed only at the bottom of the avoidance groove CV. In other examples, the static electrode 401 may also partially extend beyond the boundary of the avoidance groove CV, so as to be insulated from the deformable diaphragm MM.

[0088] It can be understood that the driving layer XA in the embodiment of the present disclosure is not limited to the first implementation manner and the second implementation manner mentioned above.

[0089] In some embodiments of the present disclosure, the membrane layer MML includes a flexible film and a movable electrode 402 disposed on the flexible film; the movable electrode 402 is disposed overlapping with the corresponding stationary electrode 401. The movable electrode 402 can be disposed on the surface of the flexible film, for example, on the surface of the flexible film near the drive layer XA. Of course, the movable electrode 402 can also be disposed within the flexible film.

[0090] In some examples, the moving electrode 402 can be a whole surface electrode. In this case, the voltage applied to the moving electrode 402 of each microvalve 101 is the same. In order to achieve independent control of each microvalve 101, each static electrode 401 can be independently loaded with a voltage. For example, Figure 7 The static electrodes 401 provided on the surface of the supporting substrate XA1 in the example are isolated from each other and are independently loaded with voltage.

[0091] For other examples, see Figure 17 and Figure 18 Multiple first electrode strips 410 can be provided on the drive layer XA, and multiple second electrode strips 420 can be provided on the membrane layer MML. One or more stationary electrodes 401 are provided on the first electrode strips 410, and one or more moving electrodes 402 are provided on the second electrode strips 420. If a portion of a first electrode strip 410 overlaps with a second electrode strip 420, that portion can serve as a stationary electrode 401; if a portion of a second electrode strip 420 overlaps with the first electrode strip 410, that portion can serve as a moving electrode 402. In this example, the stationary electrodes 401 located on the same first electrode strip 410 are loaded with the same voltage, and the moving electrodes 402 located on the same second electrode strip 420 are loaded with the same voltage. By configuring the voltages on each electrode strip, control of each microvalve 101 is achieved.

[0092] It is understandable that the arrangement of the static electrode 401 and the movable electrode 402 in the embodiment of the present disclosure is not limited to the above-mentioned example, as long as the static electrode 401 and the movable electrode 402 can cooperate with each other to drive the microvalve 101.

[0093] In the embodiment of the present disclosure, the channel layer XB may include a single-layer structure to realize the channel cavity CA, or may include a multi-layer structure to realize the channel cavity CA.

[0094] In the first implementation of the channel layer XB, see Figure 4 The channel layer XB is provided with a plurality of channel cavities CA serving as subchannels, and the channel cavities CA open toward the membrane layer MML; in two connected microvalves 101, the second airflow subchannel TBB of the first microvalve 101 and the first airflow subchannel TBA of the second microvalve 101 are the same channel cavity CA. Figure 4and Figure 10 A partition structure PA is formed between two adjacent channel cavities CA.

[0095] In this embodiment, the channel cavity CA of the channel layer XB is a groove defined on the surface of the channel layer XB near the membrane layer MML. It will be appreciated that in other examples of the present disclosure, the channel layer XB may also be composed of a stacked channel-defining structure and a cover plate, wherein the channel-defining structure has an opening, and the cover plate covers the opening to seal it into the channel cavity CA.

[0096] In an example, the first channel cavity CA of the air supply portion 100 extends to the edge of the channel layer XB, and thus can serve as an air inlet of the air supply portion 100 .

[0097] In one example, the channel cavity CA of the second airflow sub-channel TBB of the second control valve 302 may extend to the edge of the channel layer XB, thereby serving as the outlet of the second control valve 302 .

[0098] In the second implementation of the channel layer XB, see Figures 13 to 16 The channel layer XB includes a second adhesive layer FB, a second substrate BPB, a cavity layer CL and a third substrate BPC which are sequentially stacked on a side of the membrane layer MML away from the driving layer XA.

[0099] The microvalve 101 is provided with an air inlet H1 and an air outlet H2 on the second substrate BPB, as well as the partition structure PA located between the air inlet H1 and the air outlet H2. In this case, the air inlet H1 can serve as the first airflow sub-channel TBA of the microvalve 101, and the air outlet H2 can serve as the second airflow sub-channel TBB of the microvalve 101.

[0100] The second adhesive layer FB has a clearance opening CG2 that avoids the air inlet H1, air outlet H2, and partition structure PA. Thus, the membrane layer MML is bonded to the second substrate BPB via the second adhesive layer FB. During the bonding process, this prevents the second adhesive layer FB from clogging the air inlet H1 or air outlet H2, and also prevents the deformable membrane MM from adhering to the partition structure PA and losing its deformability.

[0101] The cavity layer CL is provided with a channel cavity CA. In two connected microvalves 101, the air inlet H1 of one microvalve 101 and the air outlet H2 of the other microvalve 101 are connected to the same channel cavity CA. Thus, the two microvalves 101 are connected through the channel cavity CA. The third substrate BPC covers the cavity layer CL to ensure the sealing of the channel cavity CA.

[0102] In this embodiment, the channel cavity CA is sandwiched between the second substrate BPB and the third substrate BPC to facilitate the preparation and morphology maintenance of the channel cavity CA. The second substrate BPB is provided with air holes to enable the microvalve 101 to communicate with the channel cavity CA.

[0103] Optionally, the materials of the second substrate BPB and the third substrate BPC may be selected from glass, acrylic, plastic or other hard substrate materials.

[0104] See also Figure 15 The air inlet hole H1 of the first microvalve 101 of the air supply part 100 is connected to the outside through the air hole HB1 penetrating the cavity layer CL and the air hole HA1 penetrating the third substrate BPC, so that the air supply part 100 can absorb air from the outside.

[0105] It can be understood that the channel layer XB in the embodiment of the present disclosure is not limited to the first and second implementations described above.

[0106] In one embodiment of the present disclosure, the microvalves 101 of a single air supply unit 100 can be arranged in a straight line. For example, if the air supply unit 100 includes three microvalves 101, the three microvalves 101 can be arranged in a straight line. Accordingly, the static electrodes 401, the avoidance grooves CV, and other components of the microvalves 101 of the air supply unit 100 can be arranged in a straight line.

[0107] In one embodiment of the present disclosure, one air supply unit 100 can supply air to multiple material chambers CB. In this case, the air outlet of the air supply unit 100 can be connected to the inlet of multiple first control valves 301. Figure 10 At least one channel cavity CA of the channel layer XB can also serve as an air distribution channel, which is connected to the last microvalve 101 of the air supply part 100 and to the multiple first control valves 301.

[0108] In the embodiment of the present disclosure, the material box portion 200 and the air supply portion 100 may be designed as an integral unit or as separate units.

[0109] In the first implementation of the cartridge portion 200, see Figure 4 、 Figures 7 to 12 The odor release device has an installation chamber CC, in which the cartridge 200 is installed. The inlet of the material chamber CB of the cartridge 200 is connected to the outlet of the corresponding first control valve 301, and the outlet of the material chamber CB of the cartridge 200 is connected to the inlet of the corresponding second control valve 302. In this embodiment, when the odor material in the material chamber CB is exhausted, the cartridge 200 can be replaced, thereby extending the service life of the odor release device.

[0110] In one example, the mounting cavity CC is a through-hole; the cartridge portion 200 includes a flexible mounting base 210 and a cartridge 220; the flexible mounting base 210 passes through the mounting cavity CC and engages with surrounding components; and the cartridge 220 is disposed within the receiving cavity CD of the flexible mounting base 210. When installing the cartridge portion 200, the flexible mounting base 210 can be installed first; the flexible mounting base 210 can be deformed to pass through the mounting cavity CC and engage with surrounding structures. The cartridge 220 can then be installed within the receiving cavity CD of the flexible mounting base 210.

[0111] Optionally, annular outer flanges are respectively provided on the upper and lower sides of the flexible mounting seat 210, the bottom annular outer flange is clamped on the surface of the driving layer XA away from the channel layer XB, and the top annular outer flange is clamped on the surface of the channel layer XB away from the driving layer XA.

[0112] Optionally, the flexible mounting base 210 and the sides of the cartridge are provided with aligned openings for alignment with the outlet of the first control valve 301 and the inlet of the second control valve 302. For example, the cartridge 220 may have two openings at each material cavity CB, serving as the inlet and outlet of the material cavity CB, respectively. The flexible mounting base 210 has the same number of openings as the cartridge, and both openings are provided in a one-to-one correspondence.

[0113] In one example, see Figure 4 The outlet of the first control valve 301 and the inlet of the second control valve 302 are located on the side of the mounting cavity CC, and the outlet and inlet of the cartridge portion 200 are also located on the side of the cartridge portion 200. When the cartridge portion 200 is installed in the mounting cavity CC, the outlet of the cartridge portion 200 aligns with the inlet of the second control valve 302, and the inlet of the cartridge portion 200 aligns with the outlet of the first control valve 301. This eliminates the need for additional connections such as air pipes to connect the cartridge portion 200 to the control valves, simplifying the structure of the odor release device and reducing its size.

[0114] In the second implementation of the cartridge portion 200, see Figures 13 to 16 , the channel layer XB can be formed with the required material cavity CB, which enables the material box part 200 and the air supply part 100 to be designed as an integrated whole.

[0115] In one example, the channel layer XB includes a cavity layer CL sandwiched between the second substrate BPB and the third substrate BPC, and the cavity layer CL is formed with a channel cavity CA and a material cavity CB. Figure 15The air outlet H2 of the first control valve 301 is connected to the material chamber CB; this air outlet H2 can serve as the outlet of the first control valve 301 and the inlet of the material chamber CB. The air inlet H1 of the second control valve 302 is connected to the material chamber CB; this air inlet H1 can serve as the inlet of the second control valve 302 and the outlet of the material chamber CB. The air outlet H2 of the second control valve 302 is connected to the outside through an opening that penetrates the cavity layer CL and the third substrate BPC.

[0116] In one embodiment of the present disclosure, see Figures 13 to 16 The material chamber CB includes a first material chamber CB1 and a second material chamber CB2. The odor release device includes a first island portion LA and a second island portion LB. The first island portion LA is provided with the air supply portion 100 and the first material chamber CB1, as well as the first control valve 301 and the second control valve 302 corresponding to the first material chamber CB1. The second island portion LB is provided with the second material chamber CB2, as well as the first control valve 301 and the second control valve 302 corresponding to the second material chamber CB2. The outlet of the second control valve 302 corresponding to the first material chamber CB1 can be connected to the inlet of the first control valve 301 corresponding to the second material chamber CB2 via an air pipe.

[0117] In this embodiment, the odor release device is equipped with multiple material chambers CB. By adjusting the connection method of the air tube, the connection relationship between the various material chambers CB can be adjusted, thereby achieving flexible use of the odor release device. For example, a large amount of odor material can occupy multiple material chambers CB, and these material chambers CB can be connected, while a small amount of odor material can occupy a single material chamber CB.

[0118] Of course, in some other embodiments of the present disclosure, the odor release device may also be provided with only the first island portion LA.

[0119] In one example, the channel layer XB is discontinuous between the first island portion LA and the second island portion LB. This further enhances the flexibility of the odor release device in its application. When the odor release device requires the material cavity CB on the second island portion LB, the odor release device can be used directly. When the odor release device no longer requires the material cavity CB on the second island portion LB, the second island portion LB can be removed, leaving only the first island portion LA to reduce its size. Therefore, the odor release device has the potential for secondary development.

[0120] In some embodiments of the present disclosure, the second control valve 302 is a micro valve. Thus, the second control valve 302 can be manufactured simultaneously with the first control valve 301 and the air supply unit 100, which has the advantages of simple structure, small size, and easy manufacturing, thereby reducing the size of the odor release device.

[0121] In one example, see Figures 13 to 16 The first control valve 301 and the second control valve 302 on the first island LA and the second island LB are both microvalves. In the first island LA, the outlet hole H2 of the second control valve 302 communicates with the outside through the hole HB2 penetrating the cavity layer CL and the hole HA2 penetrating the third substrate BPC. In the second island LB, the inlet hole H1 of the first control valve 301 communicates with the outside through the hole HB3 penetrating the cavity layer CL and the hole HA3 penetrating the third substrate BPC. The outlet hole H2 of the second control valve 302 communicates with the outside through the hole HB4 penetrating the cavity layer CL and the hole HA4 penetrating the third substrate BPC.

[0122] In another embodiment of the present disclosure, some or all of the second control valve 302 may be piezoelectric valves. Compared to the microvalve 101, the piezoelectric valve closes more tightly when closed, better preventing odor leakage. Of course, in some examples of the present disclosure, an additional piezoelectric valve may be provided in addition to the second control valve 302, with the second control valve 302 being the microvalve 101, and the piezoelectric valve's inlet connected to the second control valve 302's outlet.

[0123] In one example, see Figure 19 and Figure 20 The piezoelectric valve includes a bottom shell 501 , a lower substrate 502 , a glue layer 503 , a ceramic piezoelectric piece 504 , an upper substrate 505 , an interface 506 and a top shell 507 .

[0124] Among them, the lower substrate 502, the adhesive layer 503, the ceramic piezoelectric sheet 504, and the upper substrate 505 are stacked in sequence to form a valve core. Specifically, the lower substrate 502 has a wire opening for passing the wire 5041 of the ceramic piezoelectric sheet 504. The adhesive layer 503 has an avoidance cavity to reserve space for the deformation of the ceramic piezoelectric sheet; the ceramic piezoelectric sheet 504 is pressed on the adhesive layer. The upper substrate 505 is pressed on the ceramic piezoelectric sheet 504 and is provided with an air inlet hole and an air outlet hole. The air inlet hole and the air outlet hole are both located within the avoidance cavity of the adhesive layer. The bottom shell 501 and the top shell 507 constitute an outer shell, and the valve core is installed in the outer shell. The two interfaces are respectively connected to the air inlet hole and the air outlet hole.

[0125] In the unpowered state, the ceramic piezoelectric sheet does not deform, which allows it to adhere to the upper substrate, thereby closing the piezoelectric valve. In the powered state, the ceramic piezoelectric sheet deforms, creating a gap between them and the upper substrate, thereby opening the piezoelectric valve.

[0126] The present disclosure also provides an electronic device comprising any of the odor release devices described in the aforementioned embodiments. The electronic device may be a smart helmet, a smart watch, or another type of wearable device. Of course, the electronic device may also be non-wearable, such as a smart chair. Because the electronic device comprises any of the odor release devices described in the aforementioned embodiments, it has the same beneficial effects and is not further described herein.

[0127] Other embodiments of the present disclosure will readily occur to those skilled in the art after considering the specification and practicing the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present disclosure that follow the general principles of the present disclosure and include common knowledge or customary techniques in the art not disclosed herein. The description and examples are to be considered as exemplary only, with the true scope and spirit of the present disclosure being indicated by the appended claims.

Claims

1. An odor release device, characterized in that: The device comprises an air supply portion and a material box portion; the material box portion has one or more material chambers for accommodating odor materials; the odor release device further comprises a first control valve and a second control valve corresponding to each material chamber; the outlet of the air supply portion is connected to the material chamber via the first control valve, and the material chamber is connected to the outside via the second control valve; Wherein, the air supply portion includes a plurality of microvalves connected in series, and the first control valve is a microvalve; Any of the microvalve comprises a deformable diaphragm provided in the air flow channel and a static electrode provided corresponding to the deformable diaphragm; the deformable diaphragm is configured to deform under the action of electrostatic force with the static electrode, thereby opening or closing the air flow channel; The odor release device comprises a driving layer, a diaphragm layer and a channel layer stacked in sequence; In the area where any of the microvalve is located, the odor release device is provided with an avoidance groove corresponding to the microvalve, a static electrode, a first airflow sub-channel, a second airflow sub-channel, a deformable diaphragm and a partition structure; The avoidance groove is arranged in the driving layer and opens toward the diaphragm layer, and the static electrode is at least partially arranged at the bottom of the avoidance groove; the deformable diaphragm is arranged in the diaphragm layer and overlaps with the avoidance groove; the first airflow sub-channel, the second airflow sub-channel and the partition structure are arranged in the channel layer, and the partition structure is located on both sides of the first airflow sub-channel and the second airflow sub-channel.

2. The odor release device according to claim 1, characterized in that In a first state, the deformable membrane is attached to the partition structure to block the communication between the first airflow sub-channel and the second airflow sub-channel; In the second state, gaps are formed between the deformable membrane and the first airflow sub-channel, the second airflow sub-channel, and the partition structure, so that the first airflow sub-channel and the second airflow sub-channel are connected.

3. The odor release device according to claim 2, characterized in that The driving layer includes a supporting substrate and a groove layer sandwiched between the supporting substrate and the diaphragm layer; The static electrode is arranged on a surface of the support substrate close to the diaphragm layer, and the groove layer is provided with an escape opening for exposing the static electrode.

4. The odor release device according to claim 2, characterized in that The driving layer includes a first substrate and a first adhesive layer, and the first substrate is bonded to the diaphragm layer through the first adhesive layer; The avoidance groove is formed on the surface of the first substrate close to the diaphragm layer, and the static electrode is at least partially disposed at the bottom of the avoidance groove; the first adhesive layer has a avoidance opening exposing the avoidance groove.

5. The odor release device according to claim 2, characterized in that The diaphragm layer includes a flexible film and a movable electrode arranged on the flexible film; the movable electrode is arranged to overlap with the corresponding static electrode.

6. The odor release device according to claim 2, characterized in that The channel layer is provided with a plurality of channel cavities serving as sub-channels, and the channel cavities open toward the diaphragm layer; in the two connected microvalves, the second airflow sub-channel of the former microvalve and the first airflow sub-channel of the latter microvalve are the same channel cavity.

7. The odor release device according to claim 2, characterized in that The channel layer includes a second adhesive layer, a second substrate, a cavity layer and a third substrate stacked in sequence on a side of the diaphragm layer away from the driving layer; Wherein, the microvalve is provided with an air inlet and an air outlet on the second substrate, and is provided with the partition structure located between the air inlet and the air outlet; The second adhesive layer has an avoidance opening to avoid the air inlet, the air outlet and the partition structure; The cavity layer is provided with a channel cavity; in the two connected microvalves, the air inlet of one microvalve and the air outlet of the other microvalve are connected to the same channel cavity; The third substrate covers the cavity layer.

8. The odor release device according to claim 7, characterized in that The air inlet hole of the first microvalve of the air supply portion is communicated with the outside through the air hole penetrating the cavity layer and the air hole penetrating the third substrate.

9. The odor release device according to claim 2, characterized in that The odor release device has an installation cavity, and the material box part is installed in the installation cavity.

10. The odor release device according to claim 9, characterized in that The material box portion includes a flexible mounting seat and a material box; the flexible mounting seat passes through the mounting cavity and is engaged with the surrounding structure; the material box is arranged in the accommodating cavity of the flexible mounting seat.

11. The odor release device according to claim 2, characterized in that The channel layer forms the material cavity.

12. The odor release device according to claim 7, characterized in that The cavity layer is further formed with the material cavity; The air outlet of the first control valve is communicated with the material chamber; The air inlet of the second control valve is communicated with the material chamber; The air outlet of the second control valve is communicated with the outside through the air hole penetrating the cavity layer and the air hole penetrating the third substrate.

13. The odor release device according to claim 12, characterized in that The material cavity includes a first material cavity and a second material cavity; The odor release device includes a first island portion and a second island portion; the first island portion is provided with the air supply portion and the first material chamber, and is provided with a first control valve and a second control valve corresponding to the first material chamber; the second island portion is provided with the second material chamber, and is provided with a first control valve and a second control valve corresponding to the second material chamber; The outlet of the second control valve corresponding to the first material chamber can be connected to the inlet of the first control valve corresponding to the second material chamber through an air pipe.

14. The odor release device according to claim 13, characterized in that The channel layer is discontinuous between the first island portion and the second island portion.

15. The odor release device according to claim 1, characterized in that The second control valve is a micro valve, and the odor release device further includes a piezoelectric valve, the inlet of the piezoelectric valve is connected to the outlet of the second control valve; or the second control valve is a piezoelectric valve.

16. The odor release device according to claim 1, characterized in that The odor releasing device includes one or more air supply parts; the odor releasing device includes one or more material box parts.

17. An electronic device, characterized in that: The odor releasing device comprises the odor releasing device according to any one of claims 1 to 16.

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