Sound production device capable of dynamically releasing aromatic substances

Abstract

The utility model relates to the technical field of sound boxes, and discloses a sound producing device capable of dynamically releasing aromatic substances, which is easy to replace an aroma source and not easy to leak, and comprises a sound box body, a sound cavity shell which is positioned in the sound box body and corresponds to a sound producing part of the sound box body, and a loudspeaker monomer which is electrically connected with an audio module of the sound box body, a resonant cavity is formed in the sound cavity shell, the loudspeaker single body is contained in the resonant cavity, the sound production end of the loudspeaker single body penetrates out of the front side of the sound cavity shell, at least one through hole communicated with the resonant cavity and the external environment is formed in the rear side of the sound cavity shell, and an aroma volatilizer is detachably installed at the position of the through hole. The through hole is sealed by the fragrance volatilizer, the fragrance volatilizer, the inner wall of the sound cavity shell and the loudspeaker monomer jointly define a closed sound cavity, the fragrance volatilizer comprises an elastic shell which is embedded in the through hole and fixedly connected with the sound cavity shell, and an essential oil groove used for being filled with essential oil is formed in the face, back on to the closed sound cavity, of the elastic shell; and the notch of the essential oil groove is covered with a waterproof breathable film.

Description

Technical Field

[0001] This utility model relates to the field of speaker technology, and in particular to a sound-emitting device that dynamically releases aromatic substances. Background Technology

[0002] A speaker is a device that converts electrical signals into sound signals. It amplifies and processes audio signals and uses air vibrations to produce music, conversations, or ambient sounds perceptible to the human ear, providing users with an auditory experience. To expand the application scenarios of speakers and enhance their market competitiveness, various speaker products on the market are gradually integrating with other fields to provide users with a multi-sensory experience. For example, speakers are combined with video players so that users can watch videos while listening to audio, or speaker players are combined with aromatherapy devices so that users can smell aromatic scents while listening to audio, thus soothing their nerves. Chinese utility model patent (CN201789606U) discloses a speaker that incorporates an aroma source within its sound cavity. The vibration of a single speaker unit compresses the air within the sound cavity, causing the aroma to be released through a sound guide hole, allowing users to enjoy an aromatic olfactory experience while listening to music. However, the aroma source of the aforementioned speaker is located in a recessed chamber inside the sound cavity. When the aroma source is depleted or needs to be replaced with another type, the user needs to use special tools to open the speaker cavity to replenish the aroma source, or clean the recessed chamber before replacing it with another type of aroma source. This requires disassembling and assembling many parts, and the small size of the recessed chamber makes cleaning difficult, making the aroma source replacement operation challenging. Additionally, the speaker includes a solution of attaching sound-absorbing cotton inside the speaker housing. By attaching the aroma source to the sound-absorbing cotton, it is compressed under the air vibration caused by audio playback, releasing the aromatic substances. However, during speaker use, the absorbed aroma source easily detaches from the sound-absorbing cotton, causing leakage problems. This can easily contaminate the speaker housing and internal components, and soil the user's hands or other items, affecting the user experience. Utility Model Content

[0003] Therefore, it is necessary to provide a sound-emitting device that dynamically releases aromatic substances, which is easy to replace the aroma source and is not prone to leakage, in order to address the above-mentioned shortcomings.

[0004] A sound-emitting device that dynamically releases aromatic substances includes a speaker body, a sound cavity shell located within the speaker body and corresponding to the sound-emitting part of the speaker body, and a speaker unit electrically connected to the audio module of the speaker body. A resonant chamber is formed inside the sound cavity shell, and the speaker unit is housed within the resonant chamber. The sound-emitting end of the speaker unit extends from the front side of the sound cavity shell. At least one through hole communicating with the resonant chamber and the external environment is provided on the rear side of the sound cavity shell. An aromatic vaporizer is detachably installed at the through hole. The aromatic vaporizer seals the through hole and, together with the inner wall of the sound cavity shell and the speaker unit, forms a closed sound cavity. The aromatic vaporizer includes an elastic shell embedded in the through hole and fixedly connected to the sound cavity shell. An essential oil tank for filling essential oil is provided on the side of the elastic shell facing away from the closed sound cavity. The opening of the essential oil tank is covered with a waterproof and breathable membrane.

[0005] In one embodiment, the sound-emitting device that dynamically releases aromatic substances further includes a passive radiator embedded in the through-hole and fixedly connected to the housing of the sound cavity, the passive radiator sealing the through-hole.

[0006] In one embodiment, when the number of through holes is 1, an aroma evaporator and a passive radiator are embedded in the through hole, and the passive radiator is located on the side of the aroma evaporator adjacent to the closed sound cavity; when the number of through holes is greater than 1, an aroma evaporator and a passive radiator are embedded in each through hole, and the passive radiator is located on the side of the aroma evaporator adjacent to the closed sound cavity, or an aroma evaporator is embedded in some through holes and a passive radiator is embedded in the remaining through holes.

[0007] In one embodiment, a compression adjustment block is fixed on the side of the elastic shell located in the closed sound cavity; when only an aromatic vaporizer is provided at the through hole, the compression adjustment block is made of metal; when both an aromatic vaporizer and a passive radiator are provided at the through hole, the compression adjustment block is made of flexible material, and the compression adjustment block abuts against the outer wall of the passive radiator and the elastic shell respectively.

[0008] In one embodiment, the outer contour shape of the resilient shell is adapted to the inner contour shape of the through hole.

[0009] In one embodiment, the resilient shell is made of TPU material.

[0010] In one embodiment, the outer wall of the elastic shell is tensioned to fit the inner wall of the through hole.

[0011] In one embodiment, the width or outer diameter of the elastic shell is smaller than the width or outer diameter of the through hole, a deformation zone is formed between the outer wall of the elastic shell and the inner wall of the through hole, and the two opposite sides of the elastic shell protrude to form elastic lugs, which are sealed and fixedly connected to the outer edge of the through hole.

[0012] In one embodiment, the resilient lug is screwed or bonded to the outer edge of the through hole.

[0013] In one embodiment, the waterproof and breathable membrane is a PTFE stretched membrane, and an aluminum-plastic layer is provided at the part where the waterproof and breathable membrane meets the edge of the essential oil tank opening.

[0014] The present invention discloses a dynamic aroma release sound-producing device. By creating a through-hole in the outer shell of the sound cavity and sealing an aroma evaporator at the through-hole, when the speaker unit operates under the drive of the audio module, the diaphragm of the speaker unit within the sealed sound cavity vibrates. This vibration causes the air within the sealed sound cavity to vibrate and compress the elastic outer shell, thereby compressing the essential oil in the essential oil tank and accelerating its release through a waterproof and breathable membrane. This accelerates the release of the aroma. Thus, as audio is played, the release speed of the essential oil dynamically changes with the vibration frequency of the speaker unit, enabling the sound-producing device to dynamically release aromas in sync with the music. The aroma diffuser is located on the outside of the enclosed sound chamber and is a detachable component. When the essential oil in the diffuser runs out or needs to be replaced with another type of essential oil, the diffuser can be completely removed and replaced with a new one. The operation is simple, without the need to disassemble the sound chamber shell or clean the storage chamber in real time, reducing the difficulty of changing the essential oil (aroma source). By setting a waterproof and breathable membrane at the opening of the essential oil tank, the aroma produced by the essential oil can be released through the waterproof and breathable membrane while preventing leakage, avoiding contamination of product parts or soiling hands or objects, thus improving the user experience. Attached Figure Description

[0015] Figure 1 This is a partial cross-sectional structural diagram of the sound-producing device in one embodiment of the present invention;

[0016] Figure 2 This is a schematic diagram of the structure of the sound-producing unit in one embodiment of the present invention;

[0017] Figure 3 This is a schematic diagram of the structure of the sound-producing unit in another embodiment of the present invention;

[0018] Figure 4 This is a schematic diagram of the structure of the sound-producing unit in another embodiment of the present invention;

[0019] Figure 5 This is a schematic diagram of the structure of the aroma evaporator in one embodiment of the present invention. Detailed Implementation

[0020] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0021] This invention discloses a dynamic release aroma source sounding device that is easy to replace and does not easily leak. The device is a sealed speaker enclosure that improves sound quality by creating a sealed acoustic cavity on the back of the speaker driver. Specifically, the diaphragm of the speaker driver vibrates to generate sound signals in different frequency bands. Simultaneously, the air inside the sealed acoustic cavity is compressed or expanded under the action of the diaphragm, forming an "air spring" to limit excessive back-and-forth vibration of the speaker driver's diaphragm. This damping effect controls the transient response of the speaker driver's low frequencies, resulting in cleaner, tighter bass and reduced trailing sounds. Furthermore, the sealed acoustic cavity blocks airflow between the inside and outside of the cavity, preventing interference between internal standing waves and external ambient sound waves, thus reducing low-frequency muddiness. Moreover, when the air vibrates, the vibrating air reacts to the diaphragm, thereby strengthening the diaphragm's vibration amplitude and improving sound quality. Furthermore, the diaphragm of the speaker driver vibrates inertially during sound production. The air resistance of the sealed acoustic chamber quickly "holds" the diaphragm, allowing it to return to its original position rapidly after the signal stops. This reduces sound distortion caused by excessive vibration, thereby improving the audio playback quality of the speaker. In the case of a sealed speaker, this solution also incorporates an aromatic vaporizer on the outside of the sealed acoustic chamber. The vibration of the air inside the sealed chamber compresses the essential oils within the vaporizer, accelerating the release of aromatic scents and achieving a dynamic release of aromatic substances in sync with the music.

[0022] For specific details, please refer to... Figure 1 and Figure 5 The sound-producing device of this embodiment includes a speaker body 100. The speaker body 100 includes a speaker housing 110, an audio module 120 housed within the speaker housing 110, a control module 130 electrically connected to the audio module 120, and a power supply 140 electrically connected to both the control module 130 and the audio module 120. The speaker housing 110 is provided with a switch 150 or operating controls connected to the control module 130, and / or a communication module electrically connected to the control module 130 is provided within the speaker housing 110. Thus, the user can control the sound-producing device by operating the corresponding physical controls as needed, or by operating a mobile smart terminal that is communicatively connected to the communication module. A sound outlet is provided on the speaker housing 110, which constitutes the sound-emitting part of the speaker body 100.

[0023] Furthermore, the sound-emitting device of this embodiment also includes a sound cavity shell 200 located inside the speaker body 100 and corresponding to the sound-emitting part of the speaker body 100, and a speaker unit 300 electrically connected to the audio module 120 of the speaker body 100. A resonant chamber is formed inside the sound cavity shell 200, and the speaker unit 300 is housed in the resonant chamber, with the sound-emitting end of the speaker unit 300 protruding from the front side of the sound cavity shell 200. The sound cavity shell 200 is fixed inside the speaker shell 110 of the speaker body 100 by screws or clips. The sound cavity shell 200 is made of a rigid material, such as PC plastic or stainless steel. In this embodiment, a portion of the speaker unit 300 is located inside the resonant chamber, and another portion is located outside the resonant chamber. The diaphragm of the speaker unit 300 is in contact with both the inner and outer sides of the resonant chamber. To facilitate the installation of the speaker driver 300, a mounting opening is provided on the front side of the acoustic cavity housing 200 (the side of the acoustic cavity housing 200 adjacent to the sound outlet). The speaker driver 300 is fitted into this mounting opening and connected to the acoustic cavity housing 200 with screws. A sealing ring is provided at the mating part between the outer wall of the speaker driver 300 and the mounting opening to seal the gap between the speaker driver 300 and the mounting opening. At least one through hole 210 communicating with the resonant chamber and the external environment is provided on the rear side of the acoustic cavity housing 200 (the side of the acoustic cavity housing 200 opposite to the sound outlet). An aromatic vaporizer 400 is detachably installed at the through hole 210. The aromatic vaporizer 400 seals the through hole 210 and together with the inner wall of the acoustic cavity housing 200 and the speaker driver 300, forms a closed acoustic cavity 220. Thus, when the speaker unit 300 operates under the drive of the audio module 120, its diaphragm vibrates and pushes the air inside the sealed acoustic cavity 220 to vibrate, causing the air to react on the diaphragm, thereby enhancing the amplitude and improving the sound effect. The speaker unit 300 in this embodiment includes a frame, a diaphragm mounted on the frame, a suspension connecting the diaphragm and the frame, a voice coil for driving the diaphragm vibration, a magnetic circuit system for providing a stable magnetic field and interacting with the voice coil after it is energized to drive its movement, a centering support for fixing the voice coil's position and ensuring that its vertical movement does not deviate, and a dust cover for preventing dust from entering the magnetic gap. Of course, the speaker unit 300 can also be any commercially available speaker structure that produces sound through diaphragm vibration, which will not be elaborated upon here.

[0024] In this embodiment, the aroma diffuser 400 includes an elastic shell 410 embedded in the through hole 210 and fixedly connected to the acoustic cavity shell 200. An essential oil tank 420 for filling essential oils is provided on the side of the elastic shell 410 facing away from the closed acoustic cavity 220. The opening of the essential oil tank 420 is covered with a waterproof and breathable membrane 430. When the diaphragm of the speaker unit 300 vibrates and pushes the air inside the closed acoustic cavity 220 to vibrate, the vibrating air will compress the elastic shell 410, causing the elastic shell 410 to deform and further compress the essential oil in the essential oil tank 420. Thus, the essential oil and the aromatic gases produced by the essential oil in the essential oil tank 420 are compressed, allowing the aromatic gases to be released through the waterproof and breathable membrane 430, so that the user can smell the aromatic scent while listening to audio.

[0025] It should be noted that in this embodiment, the amount of essential oil filling in the essential oil tank 420 needs to be less than the volume of the essential oil tank 420. Preferably, the ratio of the amount of essential oil filling in the essential oil tank 420 to the volume of the essential oil tank 420 is between 1:2 and 3:4. In this way, after the essential oil tank 420 is filled with essential oil, there is still a cavity inside the essential oil tank 420. This cavity is used to provide a space for the aromatic gas generated by the evaporation of essential oil. Thus, when the elastic outer shell 410 is squeezed and the essential oil tank 420 is compressed, the aromatic gas inside the essential oil tank 420 can escape through the waterproof and breathable membrane 430. The essential oil can be a volatile aromatic natural extract with a relatively low boiling point. Depending on the user's usage habits, low-boiling-point sleep-aiding essential oils such as lavender can be selected, or refreshing and invigorating essential oils such as chamomile or peppermint can be selected, etc., which will not be elaborated here. Furthermore, due to the presence of aromatic gases within the essential oil tank 420 and the waterproof and breathable function of the waterproof and breathable membrane 430, when no audio is playing, the aromatic gases within the essential oil tank 420 will naturally diffuse into the external environment through the waterproof and breathable membrane 430. However, due to the lack of power to propel the aromatic gases, the release rate of the aromatic gases is very slow at this time, and the amount of aromatic gases that the user can smell is very small, almost negligible. When audio is played and the diaphragm of the speaker unit 300 vibrates, the essential oil tank 420 is rapidly deformed under the impetus of the vibrating air within the sealed acoustic cavity 220, causing the aromatic gases to be released more rapidly. The amount of aromatic gases that the user can smell increases significantly, and the release rate of the aromatic gases changes synchronously with the vibration frequency of the diaphragm, achieving dynamic release of aromatic substances in sync with the music.

[0026] Furthermore, it should be emphasized that when the sound-producing device is in use, all through holes 210 on the sound cavity housing 200 must be sealed to ensure the airtightness of the sealed sound cavity 220. In one embodiment, an aromatic vaporizer 400 is embedded in each through hole 210; that is, when the number of through holes 210 is 1, an aromatic vaporizer 400 is embedded in that through hole 210 (e.g., Figure 2(As shown); when the number of through holes 210 is greater than 1, each through hole 210 is fitted with an aromatic vaporizer 400. In another embodiment, the sound-emitting device that dynamically releases aromatic substances also includes a passive radiator 500 fitted in the through hole 210 and fixedly connected to the acoustic cavity shell 200, the passive radiator 500 sealing the through hole 210. The passive radiator 500 includes a passive diaphragm, a mass block fixed on the passive diaphragm for tuning the resonant frequency, and a suspension edge for fixing the passive diaphragm and providing elastic support, wherein the mass block is used as a counterweight and can be made of a metal block (such as a copper block or an aluminum alloy block). When the diaphragm of the speaker unit 300 vibrates, the air pressure in the sealed acoustic cavity 220 changes and drives the passive diaphragm to resonate, the resonant frequency of which is determined by the mass of the passive diaphragm and the compliance of the suspension edge. By adding or removing the mass block, the low-frequency extension depth of the sound-emitting device can be precisely controlled (such as enhancing the frequency band below 30Hz). By setting the passive radiator 500, low-frequency vibration can be strengthened to further improve the sound effect. In this embodiment, when the number of through holes 210 is one, an aroma diffuser 400 and a passive radiator 500 are embedded in the through hole 210, and the passive radiator 500 is located on the side of the aroma diffuser 400 adjacent to the enclosed sound cavity 220; when the number of through holes 210 is greater than one, an aroma diffuser 400 and a passive radiator 500 are embedded in each through hole 210, and the passive radiator 500 is located on the side of the aroma diffuser 400 adjacent to the enclosed sound cavity 220 (e.g., Figure 3 As shown), or a fragrance evaporator 400 is embedded in part of the through-hole 210, and a passive radiator 500 is embedded in the remaining through-holes 210 (as shown). Figure 4 (As shown). In this embodiment, the number of through holes 210 on the acoustic cavity shell 200 should preferably not exceed three. When an aromatic evaporator 400 and a passive radiator 500 are simultaneously installed at the same through hole 210, the passive diaphragm of the passive radiator 500 will vibrate, causing the mass block to vibrate. This mass block will then push the elastic shell 410, causing the elastic shell 410 to deform and compress the essential oil tank 420, allowing the aromatic gas in the essential oil tank 420 to escape through the waterproof and breathable membrane 430.

[0027] In another embodiment, a compression adjustment block 440 is fixed to one side of the elastic shell 410 located in the closed sound cavity 220. Furthermore, the elastic shell 410 is made of TPU material. When the elastic shell 410 has high elasticity and a soft texture (such as TPU material), the compression of air inside the closed sound cavity 220 will cause a large deformation of the elastic shell 410, which may result in excessive compression of the essential oil groove 420, making it difficult for the elastic shell 410 to quickly return to its original position after deformation. By setting the compression adjustment block 440, the hardness of the back side of the elastic shell 410 (the side of the elastic shell 410 adjacent to the closed sound cavity 220) can be adjusted, so that the hardness of the back side of the elastic shell 410 is increased, thereby reducing the deformation of the elastic shell 410 and the compression of the essential oil groove 420. While ensuring that the elastic shell 410 can deform under the action of air compression in the closed sound cavity 220 to accelerate the escape of aromatic gas, the elastic shell 410 can quickly recover its deformation, so that it can continuously compress the essential oil groove 420 during audio playback to achieve dynamic release of aromatic substances. In addition, the compression adjustment block 440 also serves as a force-bearing unit for the aromatic vaporizer 400 within the enclosed sound cavity 220. By selecting compression adjustment blocks 440 with different hardness, adjustments can be made to the bass response (different hardness results in different reaction forces on the air within the enclosed sound cavity 220, thus affecting the diaphragm amplitude) and the evaporation rate of aromatic gases within the essential oil tank 420 of the elastic shell 410 (the greater the hardness, the smaller the deformation of the elastic shell 410, and the slower the evaporation rate of the aromatic gases). Of course, in other embodiments, the compression adjustment block 440 can be omitted, and the elastic shell 410 can be made of a material with appropriate hardness to ensure that the aromatic substances are dynamically released with the music. In this embodiment, when only the aroma diffuser 400 is provided at the through hole 210, that is, when the aroma diffuser 400 is in direct contact with the closed sound cavity 220, the compression adjustment block 440 is made of metal material. For example, the compression adjustment block 440 is a copper sheet or stainless steel sheet pasted on the back side of the elastic shell 410. When the aroma diffuser 400 and the passive radiator 500 are provided at the through hole 210, the compression adjustment block 440 is made of flexible material. For example, the compression adjustment block 440 is a sponge or cotton pad, and the compression adjustment block 440 abuts against the outer wall of the passive radiator 500 and the elastic shell 410 respectively, so that the elastic shell 410 of the aroma diffuser 400 is supported by the mass block of the passive radiator 500.

[0028] The outer contour shape of the elastic shell 410 is adapted to the inner contour shape of the through hole 210. For example, if the through hole 210 is a circular hole, the outer contour of the elastic shell 410 is a cylindrical structure; if the through hole 210 is a rectangular hole, the outer contour of the elastic shell 410 is a cuboid structure. In one embodiment, the outer wall of the elastic shell 410 is tightly fitted with the inner wall of the through hole 210. In this way, the annular sidewall of the elastic shell 410 is fitted with and restricted by the inner wall of the through hole 210. When the air in the sealed sound cavity 220 vibrates or the passive diaphragm vibrates, the back side of the elastic shell 410 is compressed and further compresses the essential oil groove 420, so that the aromatic gas can escape through the waterproof and breathable membrane 430. In another embodiment, the width or outer diameter of the elastic shell 410 is smaller than the width or outer diameter of the through hole 210. A deformation zone is formed between the outer wall of the elastic shell 410 and the inner wall of the through hole 210. The two opposite sides of the elastic shell 410 protrude to form elastic lugs 450, which are sealed and fixedly connected to the outer edge of the through hole 210. More preferably, the elastic lugs 450 are screwed or bonded to the outer edge of the through hole 210. In this embodiment, when the air or passive diaphragm in the closed acoustic cavity 220 vibrates, the elastic shell 410 as a whole deforms away from the closed acoustic cavity 220 under the push of the air or passive diaphragm. Since the elastic lugs 450 are fixed to the outer edge of the through hole 210, the elastic shell 410 deforms under the combined action of the thrust of the air or passive diaphragm and the tension of the acoustic cavity shell 200, and the essential oil tank 420 is compressed to release aromatic gases. In addition, the elastic outer shell 410 is fixed at the through hole 210 and the through hole 210 is sealed to prevent resonance.

[0029] In one embodiment, the waterproof and breathable membrane 430 is a PTFE stretched membrane, and an aluminum-plastic layer is provided at the mating area between the waterproof and breathable membrane 430 and the edge of the essential oil tank 420. The PTFE stretched membrane, also known as polytetrafluoroethylene stretched membrane, is a thin film with a unique microporous structure and hydrophobic, oleophobic, and breathable properties. While blocking the essential oil from the external environment and preventing leakage, it allows the aromatic gases released by the essential oil to escape to the external environment through the waterproof and breathable membrane 430, enabling the user to smell the fragrance. By providing an aluminum-plastic layer at the mating area between the waterproof and breathable membrane 430 and the edge of the essential oil tank 420, a double-layer structure combining the aluminum-plastic layer and the waterproof and breathable membrane 430 is achieved, improving the reliability of the joint between the waterproof and breathable membrane 430 and the elastic shell 410. In this embodiment, the waterproof and breathable membrane 430 is fixed to the opening of the essential oil tank 420 by ultrasonic welding or hot pressing. As a consumable, it can ensure that the aroma evaporator 400 does not leak. At the same time, under the squeezing action of the elastic shell 410, the aromatic gas can pass through the waterproof and breathable membrane 430 according to the squeezing frequency and force to achieve dynamic volatilization of aromatic substances.

[0030] The present invention relates to a dynamic release aroma release sound device. By opening a through-hole 210 in the acoustic cavity shell 200 and sealing an aroma evaporator 400 at the through-hole 210, when the speaker unit 300 operates under the drive of the audio module 120, the diaphragm of the speaker unit 300 located within the closed acoustic cavity 220 vibrates. This causes the air within the closed acoustic cavity 220 to vibrate and compress the elastic shell 410, thereby compressing the essential oil in the essential oil tank 420 and accelerating its release through the waterproof and breathable membrane 430. This accelerates the release of the aroma. Thus, as the audio is played, the release speed of the essential oil dynamically changes with the vibration frequency of the speaker unit 300, enabling the sound device to achieve dynamic release. The aromatic substances are dynamically released in sync with the music. Since the aromatic vaporizer 400 is located on the outside of the enclosed sound cavity 220 and is a detachable part, when the essential oil in the aromatic vaporizer 400 is exhausted or needs to be replaced with another type of essential oil, the aromatic vaporizer 400 can be completely removed and replaced with a new one. The operation is simple, without the need to disassemble the sound cavity shell 200 and clean the storage chamber in real time, which reduces the difficulty of changing the essential oil (fragrance source). By setting a waterproof and breathable membrane 430 at the opening of the essential oil tank 420, the aromatic scent produced by the essential oil can be released through the waterproof and breathable membrane 430 while preventing leakage, avoiding contamination of product parts or soiling hands or objects, and improving the user experience.

[0031] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0032] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A sound-emitting device that dynamically releases aromatic substances, comprising a speaker body, characterized in that, It also includes a sound cavity shell located inside the speaker body and corresponding to the sound output part of the speaker body, and a speaker unit electrically connected to the audio module of the speaker body. A resonant chamber is formed inside the sound cavity shell, and the speaker unit is housed in the resonant chamber. The sound output end of the speaker unit extends out from the front side of the sound cavity shell. At least one through hole communicating with the resonant chamber and the external environment is opened on the rear side of the sound cavity shell. An aromatic vaporizer is detachably installed at the through hole. The aromatic vaporizer seals the through hole and together with the inner wall of the sound cavity shell and the speaker unit, forms a closed sound cavity. The aromatic vaporizer includes an elastic shell embedded in the through hole and fixedly connected to the sound cavity shell. An essential oil tank for filling essential oil is opened on the side of the elastic shell facing away from the closed sound cavity. The opening of the essential oil tank is covered with a waterproof and breathable membrane.

2. The sound-emitting device for dynamically releasing aromatic substances according to claim 1, characterized in that, It also includes a passive radiator embedded in the through hole and fixedly connected to the housing of the sound cavity, the passive radiator sealing the through hole.

3. The sound-emitting device for dynamically releasing aromatic substances according to claim 2, characterized in that, When the number of through holes is 1, an aromatic vaporizer and a passive radiator are embedded in the through hole, and the passive radiator is located on the side of the aromatic vaporizer adjacent to the closed sound cavity; when the number of through holes is greater than 1, an aromatic vaporizer and a passive radiator are embedded in each through hole, and the passive radiator is located on the side of the aromatic vaporizer adjacent to the closed sound cavity, or an aromatic vaporizer is embedded in some through holes and a passive radiator is embedded in the remaining through holes.

4. The sound-emitting device for dynamically releasing aromatic substances according to claim 3, characterized in that, A compression adjustment block is fixed on the side of the elastic shell located in the closed sound cavity; when only an aromatic vaporizer is provided at the through hole, the compression adjustment block is made of metal; when both an aromatic vaporizer and a passive radiator are provided at the through hole, the compression adjustment block is made of flexible material, and the compression adjustment block abuts against the outer wall of the passive radiator and the elastic shell respectively.

5. The sound-emitting device for dynamically releasing aromatic substances according to claim 1, characterized in that, The outer contour shape of the elastic shell is adapted to the inner contour shape of the through hole.

6. The sound-emitting device for dynamically releasing aromatic substances according to claim 1, characterized in that, The elastic outer shell is made of TPU material.

7. The sound-emitting device for dynamically releasing aromatic substances according to claim 1, characterized in that, The outer wall of the elastic shell is tightened to fit the inner wall of the through hole.

8. The sound-emitting device for dynamically releasing aromatic substances according to claim 1, characterized in that, The width or outer diameter of the elastic shell is smaller than the width or outer diameter of the through hole. A deformation zone is formed between the outer wall of the elastic shell and the inner wall of the through hole. The two opposite sides of the elastic shell protrude to form elastic lugs. The elastic lugs are sealed and fixedly connected to the outer edge of the through hole.

9. The sound-emitting device for dynamically releasing aromatic substances according to claim 8, characterized in that, The elastic lug is screwed or bonded to the outer edge of the through hole.

10. The sound-emitting device for dynamically releasing aromatic substances according to claim 1, characterized in that, The waterproof and breathable membrane is a PTFE stretched membrane, and an aluminum-plastic layer is provided at the part where the waterproof and breathable membrane meets the edge of the essential oil tank.

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