Fixing structure for microphone and heating device

Abstract

The invention relates to the technical field of voice control, and discloses a fixing structure for a microphone and a heating device.The fixing structure for the microphone comprises a shell and a display panel; a mounting groove is formed in the shell; the mounting groove is used for mounting a microphone; the display panel is installed above the shell, a pressing part is arranged on the side, facing the shell, of the display panel, the position of the pressing part corresponds to the position of the installation groove, and when the display panel is installed in place, the pressing part presses the top of the microphone. Therefore, the microphone can be stably positioned in the mounting groove, and the microphone is effectively prevented from loosening or displacing due to vibration or external force in the use process. And meanwhile, the microphone is compressed by utilizing the assembly action of the display panel, so that the assembly process is simplified, the manufacturing cost is reduced, and the compactness and the reliability of the whole machine structure are improved.

Description

Technical Field

[0001] This invention relates to the field of voice control technology, specifically to a fixing structure and heating device for a microphone. Background Technology

[0002] Currently, with the rapid development of artificial intelligence and Internet of Things technologies, voice control technology has been widely applied in smart homes and various household appliances. Among them, the microphone, as a core acoustic sensing component, undertakes the key function of collecting user voice commands. Its installation position and fixing method directly affect the quality of voice signal pickup, recognition accuracy, and long-term operational reliability of the entire device.

[0003] In traditional methods, microphones are typically fixed to the electrical housing or internal support using adhesives or mechanical screws. However, while adhesive fixation is simple in structure, the adhesive is prone to aging, softening, or even failure under high temperature, high humidity, or long-term thermal cycling conditions. This can lead to microphone displacement, loosening, or even detachment, resulting in decreased voice recognition performance or functional failure. While screw fastening provides strong mechanical stability, it requires reserved installation space, increases the number of fasteners, and relies on specialized tools for assembly, increasing manufacturing costs and assembly complexity. Furthermore, screw connections may still loosen during long-term operation due to equipment vibration and transportation impacts, leading to problems such as poor contact or abnormal noise. Summary of the Invention

[0004] In view of this, the present invention provides a fixing structure and heating device for a microphone to solve the problems of high manufacturing cost, assembly complexity and easy failure of traditional microphone installation.

[0005] In a first aspect, the present invention provides a fixing structure for a microphone, comprising: The housing has an internal mounting slot for mounting a microphone. The display panel is mounted on top of the housing, and a clamping part is provided on the side of the display panel facing the housing. The position of the clamping part corresponds to the position of the mounting groove. When the display panel is installed in place, the clamping part presses against the top of the microphone.

[0006] Beneficial effects: By incorporating a dedicated mounting slot within the housing for the microphone, and utilizing a display panel located on top of the housing with a clamping part corresponding to the mounting slot on its side facing the housing, the display panel can directly apply clamping force to the top of the microphone upon installation. This eliminates the need for additional independent fasteners or complex locking mechanisms, ensuring a stable positioning of the microphone within the mounting slot and effectively preventing loosening or displacement due to vibration or external forces during use. Furthermore, utilizing the display panel's own assembly action to clamp the microphone simplifies the assembly process, reduces manufacturing costs, and improves the overall compactness and reliability of the device.

[0007] In one optional embodiment, the housing is provided with a first sound hole; the side wall of the mounting groove is provided with a second sound hole, the second sound hole is connected to the first sound hole, and the pickup end of the microphone is located at the second sound hole.

[0008] Beneficial effects: By setting a first acoustic hole on the housing and a corresponding second acoustic hole on the mounting slot, and placing the microphone's pickup end at the second acoustic hole, a continuous and direct acoustic path is formed from the outside of the device to the microphone's pickup end. This allows external sound waves to be smoothly and efficiently transmitted to the microphone installed in the mounting slot, effectively avoiding problems such as sound energy attenuation or waveform distortion caused by obstruction from the housing structure or the slot wall. This ensures that the voice signal maintains a high signal-to-noise ratio and integrity during transmission, thereby improving the microphone's sensitivity and accuracy in picking up voice commands, and enhancing the response reliability of the subsequent voice recognition system and the overall user experience.

[0009] In one optional embodiment, a sound transmission channel is provided between the first sound hole and the second sound hole, and the sound transmission channel connects the first sound hole and the second sound hole.

[0010] Beneficial effects: By setting up a sound transmission channel between the first and second sound holes to achieve direct connection between them, the external voice signal can be guided to the microphone along a preset path, effectively shortening the sound propagation distance, reducing the diffusion and acoustic attenuation of the voice signal during propagation, improving the signal-to-noise ratio and clarity of the voice signal, and ensuring the accuracy of the device in recognizing voice commands.

[0011] In one optional embodiment, the axial length L of the sound transmission channel is greater than 1 mm and less than 10 mm.

[0012] Beneficial effects: Limiting the axial length L of the sound transmission channel to less than 10mm effectively shortens the distance between the microphone and the first sound hole of the housing, avoiding the problem of voice signal attenuation caused by excessively long sound transmission paths. External voice commands can reach the microphone quickly and with low loss, ensuring that the microphone can efficiently capture voice signals and improve the sensitivity and accuracy of voice recognition. At the same time, the short path design reduces interference factors in the signal propagation process, reduces the impact of environmental noise on the effective voice signal, further ensures the reliability of voice interaction in complex scenarios, and solves the problem of voice recognition effect being affected by excessive distance between the microphone and the first sound hole due to excessively long sound transmission channels.

[0013] In one optional embodiment, the sound transmission channel includes a first channel and a second channel that are connected sequentially along the sound propagation direction. The first channel is connected to the first sound hole, and the second channel is connected to the second sound hole. The flow cross-sectional dimension of the first channel is larger than that of the second channel.

[0014] Beneficial effects: By designing the sound transmission channels as a first channel and a second channel connected sequentially along the direction of sound propagation, and making the flow cross-sectional size of the first channel larger than that of the second channel, a step structure is naturally formed at the connection between the two. When external liquid splashes in or condensation occurs, water droplets are difficult to cross the interface and enter the second channel due to surface tension and the physical barrier of the step edge, effectively preventing water from continuing to flow inward along the channel. This avoids water directly contacting the microphone installed in the mounting slot. Without adding additional waterproof components, it simultaneously possesses acoustic conduction and passive waterproofing functions, improving the microphone's environmental adaptability and long-term reliability, and extending its service life.

[0015] In one alternative implementation, the first sound hole, the first channel, the second channel, and the microphone pickup end are coaxially arranged.

[0016] Beneficial effects: By setting the first sound hole, the first channel, the second channel, and the microphone pickup end as a coaxial structure, external sound waves can be directly transmitted to the microphone pickup end along a single, continuous, and unbiased axial path. This effectively avoids sound wave reflection, scattering, and energy loss caused by channel bending, misalignment, or non-alignment, ensuring that the voice signal is collected in a high-fidelity state and improving the sensitivity and accuracy of speech recognition. At the same time, the coaxial design makes the sound energy highly focused on the microphone pickup end, avoiding signal dispersion caused by path offset and optimizing the signal-to-noise ratio of the voice signal.

[0017] In one alternative implementation, the radial height difference H between the first channel and the second channel at the connection point is greater than 1 mm and less than 10 mm.

[0018] Beneficial effects: A radial height difference greater than 1mm can form a structurally stable step barrier, effectively blocking external liquid from flowing along the inner wall of the channel towards the microphone, completely cutting off the path for liquid to enter the mounting groove, avoiding microphone malfunctions such as short circuits and decreased sensitivity due to water ingress, and significantly extending the microphone's service life; at the same time, this height difference will not affect the normal propagation of the voice signal, and can still achieve the effect of converging and guiding the voice signal, ensuring the clarity of voice acquisition; in addition, a height difference of more than 1mm is easy to process and shape, effectively controlling production tolerances, avoiding the risk of waterproof failure due to insufficient step height, and achieving synergistic optimization of waterproof performance and acoustic performance without increasing structural complexity, thus improving the environmental adaptability and reliability of the equipment.

[0019] In one alternative embodiment, the clamping part includes an elastic structure.

[0020] Beneficial effects: The clamping part is designed as an elastic structure, which can generate moderate elastic deformation when clamping the top of the microphone, thereby providing stable and non-overloaded contact pressure; and this elastic characteristic not only effectively absorbs the small displacement caused by assembly tolerances and thermal expansion and contraction, avoiding microphone shell cracking or internal component damage caused by rigid clamping, but also continuously maintains the reliable positioning of the microphone in the mounting slot, preventing loosening caused by vibration or impact.

[0021] In one optional embodiment, the device further includes an electrical box, which is installed inside the housing; both the mounting slot and the sound transmission channel are located within the electrical box.

[0022] Beneficial effects: By placing both the mounting slot and the sound transmission channel on the electrical box, the microphone, sound transmission channel, and mounting slot can be pre-assembled and debugged before the electrical box leaves the factory, improving the overall assembly efficiency and reducing the assembly difficulty on the production line. At the same time, the modular design facilitates subsequent maintenance and replacement. When the microphone or sound transmission channel malfunctions, the entire electrical box can be disassembled and repaired directly, improving the convenience of maintenance. Furthermore, placing both the mounting slot and the sound transmission channel on the electrical box forms a compact and orderly integrated structure, effectively optimizing the space utilization within the housing and helping to ensure the accuracy and sealing of the acoustic path. This avoids sound leakage or assembly deviations caused by splicing multiple components, thereby ensuring the stability, sensitivity, and long-term reliability of voice signal acquisition.

[0023] Secondly, the present invention also provides a heating device, including the aforementioned fixing structure for a microphone.

[0024] Beneficial effects: The heating device provided by the present invention includes the above-mentioned fixing structure for the microphone and has all the technical effects of the above-mentioned fixing structure for the microphone. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the specific embodiments or related technologies of the present invention, the drawings used in the description of the specific embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0026] Figure 1 This is a front view of the heating device according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the internal structure of the heating device according to an embodiment of the present invention; Figure 3 for Figure 2 A magnified view of part A in the diagram; Figure 4 This is a side view of the internal structure of the heating device according to an embodiment of the present invention; Figure 5 for Figure 4 A magnified view of part B in the diagram; Figure 6 This is a schematic diagram of the electrical box according to an embodiment of the present invention; Figure 7 for Figure 6 A magnified view of part C in the diagram.

[0027] Explanation of reference numerals in the attached figures: 10. Shell; 11. First acoustic hole; 20. Mounting slot; 21. Second acoustic hole; 22. Guide slope; 30. Microphone; 31. Pickup end; 40. Display panel; 50. Pressing part; 60. Sound transmission channel; 61. First passage; 62. Second passage; 70. Electrical box. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] In the description of this invention, it should be noted that the terms "upper," "lower," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0030] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0031] Furthermore, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0032] The following is combined Figures 1 to 7 The following describes embodiments of the present invention.

[0033] According to an embodiment of the present invention, a fixing structure for a microphone 30 is provided, including a housing 10 and a display panel 40; the housing 10 is provided with a mounting groove 20; the mounting groove 20 is used to mount the microphone 30; the display panel 40 is mounted above the housing 10, and the side of the display panel 40 facing the housing 10 is provided with a pressing part 50, the position of the pressing part 50 corresponds to the position of the mounting groove 20, and when the display panel 40 is installed in place, the pressing part 50 presses the top of the microphone 30.

[0034] In the above embodiment, by providing a dedicated mounting slot 20 for mounting the microphone 30 within the housing 10, and by utilizing a clamping part 50 on the side of the display panel 40 located above the housing 10 that corresponds to the position of the mounting slot 20, the display panel 40 can directly apply a clamping force to the top of the microphone 30 when it is installed in place. Therefore, without the need for additional independent fasteners or complex locking mechanisms, the microphone 30 can be stably positioned within the mounting slot 20, effectively preventing it from loosening or shifting due to vibration or external forces during use. Simultaneously, the clamping of the microphone 30 is completed by the assembly action of the display panel 40 itself, simplifying the assembly process, reducing manufacturing costs, and improving the compactness and reliability of the overall structure.

[0035] In a specific implementation, the mounting slot 20 is positioned according to the overall structure of the device to ensure that the microphone 30 is located in the optimal voice acquisition area after installation, as verified by experiments. This optimal voice acquisition area was determined through multiple sets of voice acquisition and recognition experiments, achieving a voice recognition rate greater than 90%. Fixing the microphone 30 in this area improves the quality of voice command pickup and the reliability of system response, thereby ensuring high-precision voice interaction performance in various application environments.

[0036] It should be noted that the fixing structure for the microphone 30 provided in this application has good versatility and adaptability, and can be widely used in various electronic devices that require integrated voice interaction functions, including but not limited to smart home systems such as voice-controlled air conditioners, lighting devices, heating devices, and smart speakers, or office automation equipment, industrial control systems, automotive electronics, and medical equipment. In this embodiment, the fixing structure for the microphone 30 is preferably applied to a heating device.

[0037] In a specific embodiment, the slot of the mounting groove 20 is opened at its top. When the display panel 40 is assembled above the housing 10, the pressing part 50 provided on the side facing the housing 10 passes through the slot of the mounting groove 20 and presses down on the top of the microphone 30 housing in the vertical direction, thereby achieving reliable positioning and fixing of the microphone 30.

[0038] Preferably, a guide slope 22 is provided at the opening of the mounting groove 20. The guide slope 22 is inclined outward at the edge of the groove. During the assembly of the display panel 40, the pressing part 50 can smoothly slide into the mounting groove 20 along the guide slope 22, thereby successfully aligning and pressing the top of the microphone 30.

[0039] In a specific implementation, by setting the guide slope 22, not only can the pressing part 50 be effectively guided to accurately enter the predetermined position to press the microphone 30, avoiding jamming or misalignment due to assembly deviation, but also the assembly resistance is reduced, and the assembly efficiency and reliability are improved. At the same time, its outward tilted structure provides the pressing part 50 with sufficient entry space and tolerance, ensuring that a stable and reliable pressing effect can still be achieved under different manufacturing tolerance conditions.

[0040] Preferably, the part of the clamping part 50 that contacts the guide slope 22 at the opening of the mounting groove 20 is a smooth arc surface or an inclined plane, so that the clamping part 50 can slide smoothly along the guide slope 22 during the assembly of the display panel 40, effectively reducing frictional resistance and assembly impact.

[0041] In specific implementations, the use of arc surfaces or inclined planes not only improves the fit and smoothness of movement of the mating surfaces, but also avoids stress concentration, jamming, or structural damage caused by sharp corners or abrupt contours, thereby ensuring stable and reliable clamping action and improving the consistency and durability of the entire assembly.

[0042] Preferably, the mounting groove 20 gradually narrows from the opening to the bottom along its depth direction, forming a tapered structure with decreasing cross-sectional area. This causes the microphone 30 to be subjected to a gradually increasing lateral restraint force during insertion, thereby achieving self-centering positioning and a tight fit. At the same time, the tapered structure helps to enhance the limiting effect of the microphone 30 in the groove, which not only effectively prevents the microphone 30 from shifting or loosening due to vibration, impact or temperature changes during equipment operation, but also ensures that its pickup end 31 and the sound transmission channel 60 remain precisely aligned, maintaining the consistency of the acoustic path, thereby ensuring high sensitivity and high reliability of voice signal acquisition.

[0043] In one embodiment, the housing 10 is provided with a first sound hole 11; the side wall of the mounting groove 20 is provided with a second sound hole 21, the second sound hole 21 is connected to the first sound hole 11, and the pickup end 31 of the microphone 30 is located at the second sound hole 21.

[0044] In the above embodiment, by providing a first sound hole 11 on the housing 10 and a corresponding second sound hole 21 communicating with it on the mounting slot 20, and arranging the pickup end 31 of the microphone 30 at the second sound hole 21, a continuous and direct acoustic path is formed from the outside of the device to the pickup end 31 of the microphone 30. This allows external sound waves to be smoothly and efficiently transmitted to the microphone 30 installed in the mounting slot 20, effectively avoiding problems such as sound energy attenuation or waveform distortion caused by the obstruction of the structure of the housing 10 or the slot wall of the mounting slot 20. This ensures that the voice signal maintains a high signal-to-noise ratio and integrity during transmission, thereby improving the microphone 30's sensitivity and accuracy in picking up voice commands, and enhancing the response reliability of the subsequent voice recognition system and the overall user experience.

[0045] In one embodiment, a sound transmission channel 60 is provided between the first sound hole 11 and the second sound hole 21, and the sound transmission channel 60 connects the first sound hole 11 and the second sound hole 21.

[0046] In the above embodiment, by setting a sound transmission channel 60 between the first sound hole 11 and the second sound hole 21 to achieve direct connection between the two, the external voice signal can be guided to the microphone 30 along a preset path, effectively shortening the sound propagation distance, reducing the diffusion and acoustic attenuation of the voice signal during propagation, improving the signal-to-noise ratio and clarity of the voice signal acquisition, and ensuring the accuracy of the device in recognizing voice commands.

[0047] In a specific implementation, the axial direction of the sound transmission channel 60 is perpendicular to the mounting direction of the display panel 40, and the second sound hole 21 is opened on the side wall of the mounting groove 20, so that the clamping part 50 and the sound transmission channel 60 are spatially independent and do not interfere with each other: the clamping force is applied in the vertical direction to ensure that the microphone 30 is stable and does not affect its acoustic performance; while the sound is introduced into the pickup end 31 from the outside of the housing 10 through the lateral first sound hole 11, the sound transmission channel 60 and the second sound hole 21, effectively avoiding sound energy loss caused by structural obstruction or tortuous path.

[0048] In one embodiment, the axial length L of the sound transmission channel 60 is greater than 1 mm and less than 10 mm.

[0049] In the above embodiment, the axial length L of the sound transmission channel 60 is limited to less than 10mm, which can effectively shorten the distance between the microphone 30 and the first sound hole 11 of the housing 10, avoid the problem of voice signal attenuation caused by the excessively long sound transmission path, and allow external voice commands to reach the microphone 30 quickly and with low loss, ensuring that the microphone 30 can efficiently capture voice signals and improve the sensitivity and accuracy of voice recognition. At the same time, the short path design reduces interference factors in the signal propagation process, reduces the impact of environmental noise on the effective voice signal, further ensures the reliability of voice interaction of the device in complex scenarios, and solves the problem that the distance between the microphone 30 and the first sound hole 11 is too far due to the excessive length of the sound transmission channel 60, which affects the voice recognition effect.

[0050] In one embodiment, the sound transmission channel 60 includes a first channel 61 and a second channel 62 connected sequentially along the sound propagation direction. The first channel 61 is connected to the first sound hole 11, and the second channel 62 is connected to the second sound hole 21. The flow cross-sectional dimension of the first channel 61 is larger than that of the second channel 62.

[0051] In the above embodiment, by designing the sound transmission channel 60 as a first channel 61 and a second channel 62 connected sequentially along the sound propagation direction, and making the flow cross-sectional size of the first channel 61 larger than that of the second channel 62, a step structure is naturally formed at the connection between the two. When external liquid splashes in or condensation occurs, water droplets are difficult to cross the interface and enter the second channel 62 due to surface tension and the physical obstruction of the step edge, effectively preventing water from continuing to flow inward along the channel, thereby avoiding direct contact between water and the microphone 30 installed in the mounting groove 20. Without adding additional waterproof components, it simultaneously possesses acoustic conduction and passive waterproofing functions, improving the environmental adaptability and long-term reliability of the microphone 30 and extending its service life.

[0052] In one embodiment, the first sound hole 11, the first channel 61, the second channel 62, and the pickup end 31 of the microphone 30 are coaxially arranged.

[0053] In the above embodiment, the first sound hole 11, the first channel 61, the second channel 62, and the pickup end 31 of the microphone 30 are configured as a coaxial structure, so that external sound waves can be directly transmitted to the pickup end 31 of the microphone 30 along a single, continuous, and unbiased axial path. This effectively avoids sound wave reflection, scattering, and energy loss caused by channel bending, misalignment, or non-alignment, ensuring that the voice signal is collected in a high-fidelity state and improving the sensitivity and accuracy of voice recognition. At the same time, the coaxial design makes the sound energy highly focused on the pickup end 31 of the microphone 30, avoiding signal dispersion caused by path offset and optimizing the signal-to-noise ratio of the voice signal.

[0054] In one embodiment, the radial height difference H between the first channel 61 and the second channel 62 at the connection point is greater than 1 mm and less than 10 mm.

[0055] In the above embodiment, a radial height difference greater than 1 mm can form a structurally stable step barrier, which can effectively block external liquid from flowing along the inner wall of the channel towards the microphone 30, completely cutting off the path of liquid intrusion into the mounting groove 20, avoiding short circuits, decreased sensitivity, and other malfunctions of the microphone 30 due to water ingress, and significantly extending the service life of the microphone 30. At the same time, the setting of this height difference will not affect the normal propagation of the voice signal, and can still achieve the convergence and guidance effect of the voice signal, ensuring the clarity of voice acquisition. In addition, a height difference of more than 1 mm is easy to process and form, which can effectively control production tolerances and avoid the risk of waterproof failure due to insufficient step height. Without increasing structural complexity, the waterproof performance and acoustic performance are synergistically optimized, improving the environmental adaptability and reliability of the equipment.

[0056] In a specific implementation, the sound transmission channel 60 is a cylindrical channel, and the inner diameter of the first channel 61 is larger than the inner diameter of the second channel 62, so that the first channel 61 and the second channel 62 form a continuous and complete annular stepped structure at the connection. The annular step forms a continuous and complete water-blocking barrier, which can prevent condensation or externally splashed liquid from continuing to flow along the inner wall of the channel to the microphone 30 pickup end 31, thereby ensuring efficient sound transmission while improving the moisture-proof reliability and long-term stability of the microphone 30.

[0057] Preferably, the axial length of the first channel 61 is less than the axial length of the second channel 62, so that the sound transmission channel 60 has a shorter guiding section near the first sound hole 11 and a relatively longer stabilizing section near the second sound hole 21. This helps to shorten the initial path of external sound waves entering the channel, reduce the attenuation of high-frequency signals, and at the same time, the longer second channel 62 provides more thorough rectification and stabilization of airflow and sound waves, reducing turbulence noise and cavity resonance interference, thereby optimizing the overall acoustic transmission characteristics and improving the clarity and signal-to-noise ratio of voice acquisition.

[0058] In one embodiment, the clamping portion 50 includes an elastic structure.

[0059] In the above embodiment, the clamping part 50 is designed as an elastic structure, which can generate moderate elastic deformation when clamping the top of the microphone 30, thereby providing stable and non-overloaded contact pressure; and this elastic characteristic not only effectively absorbs the small displacement caused by assembly tolerances and thermal expansion and contraction, avoiding the microphone 30 shell cracking or internal component damage caused by rigid clamping, but also continuously maintains the reliable positioning of the microphone 30 in the mounting groove 20, preventing loosening caused by vibration or impact.

[0060] In one embodiment of this example, the clamping part 50 includes, but is not limited to, elastic elements such as elastic support plates and springs, to provide buffering and adaptive clamping force.

[0061] In another embodiment of this invention, the clamping part 50 may also adopt a rigid structure such as a support column, and the microphone 30 can be stably limited by precise assembly dimensions.

[0062] In a specific implementation, the clamping part 50 is set as an elastic structure, which is suitable for occasions that need to absorb tolerances, reduce vibration or avoid overpressure; the clamping part 50 is set as a rigid structure, which is suitable for situations where positional accuracy and long-term stability are required, thereby ensuring that the microphone 30 is reliably fixed while improving the adaptability of the overall structure.

[0063] In one embodiment, the device further includes an electrical box 70, which is installed inside the housing 10; the mounting groove 20 and the sound transmission channel 60 are both disposed in the electrical box 70.

[0064] In the above embodiment, both the mounting slot 20 and the sound transmission channel 60 are mounted on the electrical box 70. This allows for the pre-assembly and debugging of the microphone 30, the sound transmission channel 60, and the mounting slot 20 before the electrical box 70 leaves the factory, improving the overall assembly efficiency and reducing the assembly difficulty on the production line. Simultaneously, the modular design facilitates subsequent maintenance and replacement. When the microphone 30 or the sound transmission channel 60 malfunctions, the electrical box 70 can be directly disassembled and repaired, improving maintenance convenience. Furthermore, mounting both the mounting slot 20 and the sound transmission channel 60 on the electrical box 70 forms a compact and orderly integrated structure, effectively optimizing the space utilization within the housing 10 and ensuring the accuracy and sealing of the acoustic path. This avoids sound leakage or assembly deviations caused by the splicing of multiple components, thereby ensuring the stability, sensitivity, and long-term reliability of the voice signal acquisition.

[0065] Preferably, the mounting groove 20 and the sound transmission channel 60 are made by an integral molding process to form a continuous and well-sealed integral component. The second sound hole 21 directly constitutes the outlet of the sound transmission channel 60 and is opened on the side wall of the mounting groove 20, facing the pickup end 31 of the microphone 30.

[0066] In a specific implementation, the integrated design of the mounting slot 20 and the sound transmission channel 60 not only eliminates the sound leakage problem caused by assembly gaps or misalignments in traditional split structures, but also ensures that sound waves are accurately and efficiently transmitted from the sound transmission channel 60 through the second sound hole 21 to the microphone 30 pickup area, improving the sensitivity and consistency of voice acquisition. At the same time, the integrated structure enhances mechanical strength, simplifies assembly processes, and improves production efficiency and product reliability.

[0067] According to an embodiment of the present invention, in another aspect, a heating device is also provided, including the above-described fixing structure for the microphone 30.

[0068] In the above embodiments, the heating device provided by the present invention includes the above-described fixing structure for the microphone 30 and has all the technical effects of the above-described fixing structure for the microphone 30.

[0069] In a specific implementation, the heating device also includes a heating element installed inside the housing 10 to generate heat for heating function.

[0070] In a specific implementation, the electrical box 70 is installed inside the housing 10 and is located at one end of the heating element, spatially adjacent to the heating element, which facilitates the connection of control lines and power supply nearby and optimizes the compactness of the internal structure of the whole machine.

[0071] In this embodiment, the heating device includes, but is not limited to, baseboard heaters, fan heaters, and oil-filled radiators.

[0072] In this embodiment, the preferred heating device is a skirting board heater.

[0073] Although embodiments of the invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations all fall within the scope defined by the appended application.

Claims

1. A fixing structure for a microphone, characterized in that, include: The housing (10) has an internal mounting slot (20); the mounting slot (20) is used to mount a microphone (30); The display panel (40) is installed above the housing (10), and the display panel (40) has a pressing part (50) on the side facing the housing (10). The position of the pressing part (50) corresponds to the position of the mounting groove (20). When the display panel (40) is installed in place, the pressing part (50) presses the top of the microphone (30).

2. The fixing structure for a microphone according to claim 1, characterized in that, The housing (10) is provided with a first sound hole (11); the side wall of the mounting groove (20) is provided with a second sound hole (21), the second sound hole (21) is connected to the first sound hole (11), and the pickup end (31) of the microphone (30) is located at the second sound hole (21).

3. The fixing structure for a microphone according to claim 2, characterized in that, A sound transmission channel (60) is provided between the first sound hole (11) and the second sound hole (21), and the sound transmission channel (60) connects the first sound hole (11) and the second sound hole (21).

4. The fixing structure for a microphone according to claim 3, characterized in that, The axial length L of the sound transmission channel (60) is greater than 1 mm and less than 10 mm.

5. The fixing structure for a microphone according to claim 3, characterized in that, The sound transmission channel (60) includes a first channel (61) and a second channel (62) connected sequentially along the sound propagation direction. The first channel (61) is connected to the first sound hole (11), and the second channel (62) is connected to the second sound hole (21). The flow cross-sectional dimension of the first channel (61) is larger than that of the second channel (62).

6. The fixing structure for a microphone according to claim 5, characterized in that, The first sound hole (11), the first channel (61), the second channel (62) and the pickup end (31) of the microphone (30) are coaxially arranged.

7. The fixing structure for a microphone according to claim 6, characterized in that, The radial height difference H between the first channel (61) and the second channel (62) at the connection point is greater than 1 mm and less than 10 mm.

8. The fixing structure for a microphone according to any one of claims 1 to 7, characterized in that, The clamping part (50) includes an elastic structure.

9. The fixing structure for a microphone according to any one of claims 3 to 7, characterized in that, It also includes an electrical box (70), which is installed inside the housing (10); the mounting groove (20) and the sound transmission channel (60) are both located in the electrical box (70).

10. A heating device, characterized in that, Includes the microphone mounting structure according to any one of claims 1 to 9.

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