Pickup device and intelligent range hood with same

Abstract

The invention relates to a pickup device and an intelligent range hood with the same. The pickup device comprises a mounting base and at least one pickup assembly, and the pickup assembly is detachably connected with the mounting base; the pickup assembly comprises a channel main body and a pop-up assembly, and the channel main body is arranged in the electric appliance shell through a mounting seat; the pop-up assembly sleeves the outer side of the channel main body and is connected with the channel main body through the mounting seat; the pop-up assembly comprises a fixed end, a telescopic end and a memory spring connected between the fixed end and the telescopic end. A pushing piece is arranged at the telescopic end and extends in the direction perpendicular to the axial direction of the channel body, and the end of the pushing piece is clamped to the outer wall of the channel body; the memory spring is configured to be capable of contracting after being electrified and heated, so that the pushing piece is driven to push the channel body to pop out of the electric appliance shell in the axial direction. According to the pickup device, through the design of the pop-up channel driven by the memory spring, the functions of precise coaxial assembly, end face sealing noise reduction and user self-cleaning are achieved, and the reliability and maintenance convenience of the pickup channel are improved.

Description

Technical Field

[0001] This application relates to the field of intelligent range hood technology, specifically to a sound pickup device and an intelligent range hood having the same. Background Technology

[0002] Existing range hoods generally employ a multi-layered structure design, consisting of a microphone body, a sealing layer, a panel, and a decorative panel. The openings in each layer are mechanically assembled to form a sound transmission path.

[0003] The existing structure has three main technical defects: First, the multi-layer stacked structure makes it difficult to achieve precise coaxial positioning. To compensate for assembly deviations, it is often necessary to increase the diameter of the opening to ensure the sound wave transmission rate. However, large-diameter openings can expose the internal mechanical structure, affecting the product's aesthetics. On the other hand, reducing the diameter of the opening will further exacerbate the difficulty of coaxiality control, creating a design contradiction. Second, the splicing gaps between adjacent structural components are difficult to completely eliminate. Sound waves can easily leak through the gaps during transmission, leading to a decrease in the signal-to-noise ratio, especially with significant energy attenuation in the high-frequency range. Third, oil stains generated during cooking can easily accumulate on the inner wall of the channel, reducing the effective cross-sectional area of ​​the channel or even causing complete blockage. The existing structure usually integrates the pickup channel with the whole machine, which users cannot disassemble and clean themselves. They can only repair it by replacing the entire panel assembly, which increases the cost of use and affects the product's lifespan. Summary of the Invention

[0004] In order to solve the problems in the existing technology, such as the difficulty of coaxial positioning and the contradiction between aesthetic design caused by multi-layer stacking, the sound wave leakage and attenuation caused by structural splicing gaps, and the channel blockage caused by oil deposits and the inability to clean itself.

[0005] This application provides a sound pickup device, including a mounting base and at least one sound pickup component, wherein the sound pickup component is detachably connected to the mounting base; The pickup assembly includes a channel body and a pop-out assembly. The channel body is mounted inside the electrical housing via the mounting base. The pop-out assembly is sleeved on the outside of the channel body and connected to the channel body via the mounting base. The pop-out assembly includes a fixed end, a telescopic end, and a memory spring connecting the two; the telescopic end is provided with a pusher, which extends in a direction perpendicular to the axial direction of the channel body, and its end engages with the outer wall of the channel body; the memory spring is configured to retract after being heated by electricity, thereby driving the pusher to push the channel body axially out of the electrical housing.

[0006] Furthermore, the main body of the channel is an integrated hollow tubular structure that penetrates the electrical housing, the mounting base, and communicates with the microphone assembly; One end of the channel body is connected to the sound outlet of the microphone assembly, and the other end is provided with an annular flange. One side of the annular flange abuts against the mounting base, and the other side is flush with the outer surface of the electrical housing.

[0007] Furthermore, the mounting base is provided with a channel mounting hole and a pop-out component mounting groove surrounding the outer wall of the channel mounting hole, and the upper edge of the channel mounting hole is higher than the upper edge of the pop-out component mounting groove.

[0008] Furthermore, a connecting hole is provided between the pop-out component mounting slot and the channel mounting hole, and the pusher is connected to the outer wall of the channel body through the connecting hole.

[0009] Furthermore, the outer wall of the channel body is provided with annular protrusions that engage with the pusher.

[0010] Furthermore, the memory spring is made of shape memory alloy material.

[0011] Furthermore, the fixed end is provided with electrode contacts for energizing and heating the memory spring.

[0012] Furthermore, it also includes a signal monitoring component for acquiring the real-time signal amplitude received by the microphone; A control component is used to heat the memory spring through electrode contacts when the difference between the initial signal amplitude and the real-time signal amplitude meets a preset condition, thereby causing the memory spring to contract.

[0013] Further, it includes a sealing assembly, the sealing assembly comprising: A sealing ring is disposed between the channel body and the sound outlet of the microphone assembly; At least one sealing ring is disposed between the channel body and the inner wall of the channel mounting hole.

[0014] This application also provides a smart range hood, including an inner frame, an electrical housing, and the sound pickup device, wherein the electrical housing is connected to the inner frame. The pickup device includes a mounting base and at least one pickup component, which is connected to the inner frame of the smoke machine via the mounting base and is located inside the appliance housing.

[0015] Implementing the embodiments of this application has the following beneficial effects: The pickup device of this application, through the design of the pop-out component and the shape memory characteristics of the memory spring, realizes the convenient pop-out function of the channel body, improves the maintenance convenience and service life of the pickup device, optimizes the sound transmission path, and enhances the pickup effect.

[0016] The main body of the channel is stably axially positioned by abutting one end face of the annular flange with the mounting base 1, while the other end face is flush with the outer surface of the electrical housing. This design eliminates the coaxiality deviation caused by the stacking of multiple layers, ensuring the accuracy of the sound wave transmission direction and achieving a smooth and aesthetically pleasing outer surface of the electrical housing. It avoids the problem of traditional protruding pickup structures affecting the overall appearance of the equipment. It can also effectively prevent pollutants such as oil fumes and dust from entering the channel, improving the cleanliness and service life of the channel. Moreover, the flush outer surface design allows users to directly observe the channel status. When the channel needs cleaning, the main body of the channel can be automatically popped out by the pop-out component, allowing users to easily disassemble and clean it. This solves the technical problem of the difficulty in cleaning and maintaining traditional fixed pickup channels, greatly improving the user experience and product reliability. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of this application, the accompanying drawings used in the description of the embodiments or prior art will be briefly introduced below. Obviously, the drawings described below are merely some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0018] Figure 1 This is a cross-sectional view of the pickup device according to an embodiment of this application; Figure 2 This is a cross-sectional view of the pickup device installed inside the electrical appliance housing according to an embodiment of this application; Figure 3 This is a schematic diagram of the structure of the channel body in an embodiment of this application; Figure 4 This is a schematic diagram of the structure of the pop-up component in an embodiment of this application; Figure 5 This is a cross-sectional view of the mounting base according to an embodiment of this application; Figure 6 This is a schematic diagram of the structure of the mounting base according to an embodiment of this application; Figure 7 This is a schematic diagram of the structure of the sound pickup device installed on the inner frame of the smoke machine according to an embodiment of this application; Figure 8 This is a schematic diagram of the installation state of the pickup device and the electrical housing in an embodiment of this application.

[0019] The corresponding reference numerals in the figure are: 1. Mounting base; 2. Sound pickup assembly; 3. Sealing ring; 4. Sealing ring; 11. Channel mounting hole; 12. Pop-up component mounting slot; 13. Connecting hole; 21. Channel body; 22. Fixed end; 23. Telescopic end; 24. Memory spring; 25. Pushing component; 211. Annular protrusion; 212. Annular flange; 213. Groove; 100. Electrical appliance housing; 200. Microphone assembly; 300. Range hood inner frame. Detailed Implementation

[0020] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0021] In the description of this application, it should be understood that the terms "upper," "lower," "inner," "outer," "top," and "bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or regarding the vertical, perpendicular, or gravitational direction of the component itself. These terms are used only for the convenience of describing this application 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 this application. The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature.

[0022] Unless otherwise defined, the technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used herein is for descriptive purposes only and is not intended to limit the scope of this application. Terms such as “part” or “component” appearing herein can refer to a single part or a combination of multiple parts. Terms such as “installation,” “setup,” and “connection” appearing herein 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 indicate that one component is directly attached to another component or that one component is attached to another component via an intermediate component; they can refer to the internal connection of two elements. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances. A feature described in one embodiment herein may be applied alone or in combination with other features to another embodiment, unless that feature is not applicable in that other embodiment or is otherwise stated.

[0023] The following combination Figures 1-8This application introduces a sound pickup device and an intelligent range hood incorporating the same, based on embodiments of the present application. Figure 1 This is a cross-sectional view of the pickup device according to an embodiment of this application; Figure 2 This is a cross-sectional view of the pickup device installed inside the electrical appliance housing according to an embodiment of this application; Figure 3 This is a schematic diagram of the structure of the channel body in an embodiment of this application; Figure 4 This is a schematic diagram of the structure of the pop-up component in an embodiment of this application; Figure 5 This is a cross-sectional view of the mounting base according to an embodiment of this application; Figure 6 This is a schematic diagram of the structure of the mounting base according to an embodiment of this application; Figure 7 This is a schematic diagram of the structure of the sound pickup device installed on the inner frame of the smoke machine according to an embodiment of this application; Figure 8 This is a schematic diagram of the installation state of the pickup device and the electrical housing in an embodiment of this application.

[0024] This application provides a voice pickup device. This device is used in electrical appliances equipped with a microphone assembly 200, including but not limited to range hoods, air conditioner indoor units, air purifiers, and other home appliances with voice interaction functions. This embodiment uses a range hood as an example for specific description.

[0025] like Figure 1 and 2 As shown, the microphone pickup device includes a mounting base 1 and at least one pickup component 2, which is detachably connected to the mounting base 1. The mounting base 1 is fixedly connected to the inner frame of the range hood, or is integrally formed with the inner frame of the range hood. Preferably, the mounting base 1 is connected to the inner frame of the range hood by screws, and a microphone component 200 is provided between the mounting base 1 and the inner frame of the range hood. The pickup component 2 is detachably disposed in the mounting base 1, and the upper surface of the mounting base 1 is in contact with the electrical housing 100.

[0026] The pickup assembly 2 includes a channel body 21 and a pop-out assembly. The channel body 21 is disposed inside the electrical housing 100 via a mounting base 1. The pop-out assembly is sleeved on the outside of the channel body 21 and is connected to the channel body 21 via the mounting base 1.

[0027] The channel body 21 is used to guide the sound signal from the microphone assembly to the outside of the electrical housing 100, facilitating the transmission and output of the sound signal. For example... Figure 2 and 3 As shown, the channel body 21 is an integrated hollow tubular structure that passes through the electrical housing 100, the mounting base 1 and the microphone assembly 200 located at the bottom of the mounting base 1; one end of the channel body 21 is connected to the sound outlet of the microphone assembly 200, and the other end is provided with an annular flange 212. One side of the annular flange 212 abuts against the mounting base, and the other side is flush with the outer surface of the electrical housing 100.

[0028] The channel body 21 is stably axially positioned by abutting against the mounting base 1 on one side of the annular flange 212, while the other side is flush with the outer surface of the electrical housing 100. This design eliminates the coaxiality deviation caused by the stacking of multiple layers, ensuring the accuracy of the sound wave transmission direction and achieving a smooth and aesthetically pleasing outer surface of the electrical housing 100. It avoids the problem of traditional protruding pickup structures affecting the overall appearance of the equipment. It can also effectively prevent pollutants such as oil fumes and dust from entering the channel, improving the cleanliness and service life of the channel. Furthermore, the flush outer surface design allows users to directly observe the channel status. When the channel needs cleaning, the channel body 21 can be automatically popped out by the pop-out component, allowing users to easily disassemble and clean it. This solves the technical problem of the difficulty in cleaning and maintaining traditional fixed pickup channels, greatly improving the user experience and product reliability.

[0029] like Figure 4 As shown, the pop-out assembly includes a fixed end 22, a telescopic end 23, and a memory spring 24 connected between the two; the telescopic end 23 is provided with a pusher 25, which extends in a direction perpendicular to the axial direction of the channel body 21, and its end engages with the outer wall of the channel body 21; the memory spring 24 is configured to retract after being heated by electricity, thereby driving the pusher 25 to push the channel body 21 out of the electrical housing 100 along the axial direction.

[0030] The fixed end 22 and the telescopic end 23 can be annular plate structures. The two ends of the memory spring 24 are fixedly connected to the fixed end 22 and the telescopic end 23 respectively, such as by laser welding. The pusher 25 may include multiple push rods integrally formed with the telescopic end 23, and the ends of the push rods are engaged with the outer wall of the channel assembly 21.

[0031] In this embodiment, the pusher 25 includes two push rods integrally formed with the telescopic end 23. The two push rods are symmetrically arranged on the inner wall of the annular plate. The ends of the push rods extend in a direction perpendicular to the axial direction of the channel body 21 and can be engaged with the outer wall of the channel assembly 21.

[0032] The memory spring 24 is made of shape memory alloy. When heated to a preset temperature, the memory spring 24 transforms from a martensitic phase to an austenitic phase and contracts forcefully, thereby driving the pusher 25 to push the channel body 21 axially out of the electrical housing 100. In some possible embodiments, the strain of the memory spring 24 can reach 4% to 8%. Through the design of the ejection assembly, the channel body 21 can be easily ejected from the electrical housing 100, facilitating cleaning and maintenance by the user and preventing a decrease in sound pickup performance due to oil accumulation.

[0033] The pickup device in this embodiment achieves convenient pop-out function of channel body 21 by designing a pop-out component and combining the shape memory characteristics of memory spring 24, which improves the maintenance convenience and service life of the pickup device, optimizes the sound transmission path, and enhances the pickup effect.

[0034] Furthermore, such as Figure 5 and 6 As shown, the mounting base 1 is provided with a channel mounting hole 11 and a pop-out component mounting slot 12 surrounding the outer wall of the channel mounting hole 11, and the microphone assembly 200 is located at the bottom of the channel mounting hole 11.

[0035] In some possible implementations, the mounting base 1 can be a one-piece frame structure. The mounting base 1 has the same number of channel mounting holes 11 as the pickup assembly 2, and the bottom end of the channel mounting holes 11 communicates with the mounting cavity of the microphone assembly 200. The pop-out component mounting slot 12 is arranged around the outer wall of the channel mounting hole 11, and a connecting hole 13 is provided between the pop-out component mounting slot 12 and the channel mounting hole 11. The pusher 25 is connected to the outer wall of the channel body 21 through the connecting hole 13.

[0036] The upper edge of the channel mounting hole 11 is higher than the upper edge of the pop-out component mounting slot 12. The upper edge of the channel mounting hole 11 is lower than the upper surface of the electrical housing 100. The channel body 21 is disposed within the channel mounting hole 11, and the annular flange 212 of the channel body 21 abuts against the upper edge of the channel mounting hole 11. The pop-out component is disposed within the pop-out component mounting slot 12, the telescopic end 23 abuts against the bottom of the pop-out component mounting slot 12, and the fixed end 22 is interference-fitted with the wall of the pop-out component mounting slot 12 and flush with the upper surface of the pop-out component mounting slot 12.

[0037] Furthermore, the outer wall of the channel body 21 is provided with annular protrusions 211 that engage with the pusher 25.

[0038] An annular protrusion is located on the outer wall of the channel body 21 near the lower edge, encircling the outer wall of the channel body 21 and integrally formed with the channel body 21. When the memory spring 24 is energized and contracts to drive the telescopic end 23 to move, the memory spring 24 contracts and generates axial thrust, which enables the pusher 25 to push the channel body 21 to overcome the static friction between it and the mounting base 1 and move outward. After the channel body 21 is fully extended, the pusher 25 separates from the annular protrusion 211.

[0039] Furthermore, the fixed end 22 is provided with electrode contacts for energizing and heating the memory spring 24. The electrode contacts can be located on the inner wall of the annular plate of the fixed end 22 and connected to an external power source through the conductive path in the mounting base 1.

[0040] Specifically, to achieve controllable heating of the memory spring 24, at least one pair of electrode contacts are provided on the fixed end 22. In some possible embodiments, the fixed end 22 is an annular plate structure with two conductive areas opposite each other on its plate wall, serving as positive and negative contacts. These two electrode contacts are preferably made of materials with excellent conductivity and high temperature resistance, such as gold-plated copper, silver, or their alloys, to ensure low impedance and good oxidation resistance even under high current flow, preventing increased resistance due to oxidation that could affect heating efficiency or damage the contacts. The electrode contacts can establish an electrical connection with an external power source through conductive paths pre-embedded inside the mounting base 1. Specifically, during manufacturing, the mounting base 1 can be injection-molded or embedded with conductive metal sheets or metallized coatings to form one or more conductive paths. The electrode contacts on the fixed end 22 achieve a stable, low-resistance connection with these conductive paths within the mounting base 1 through welding, pressing, or conductive adhesive bonding. The end of the conductive path extends to the edge of the mounting base 1 or a specific pin, which can be connected to the main controller of the smoke hood or a dedicated power management module.

[0041] Furthermore, it includes a sealing assembly, which comprises: The sealing ring 3 is located between the channel body 21 and the microphone assembly's sound outlet to seal the connection between the channel body 21 and the microphone assembly, preventing sound leakage.

[0042] At least one sealing ring 4 is disposed between the channel body 21 and the inner wall of the channel mounting hole 11 to seal the gap between the channel body 21 and the inner wall of the channel mounting hole 11, ensuring the sealing performance of the channel body 21 within the channel mounting hole 11. In one possible embodiment, the outer wall of the channel body 21 is provided with annular grooves 213 corresponding to the number of sealing rings 4, and the grooves 213 are engaged with the sealing rings 4. The number of sealing rings 4 and grooves 213 can be set according to the length of the channel body 21.

[0043] The sealing ring 3 and sealing ring 4 can be made of materials such as rubber, silicone, or polytetrafluoroethylene. By setting the sealing ring 3 and sealing ring 4, dust, oil, and external noise can be effectively prevented from entering the channel body 21, ensuring that the transmission of sound signals is not interfered with and improving the sound pickup effect. The use of sealing components helps reduce contamination and corrosion inside the channel body 21, improves the reliability of the pickup device in complex environments, and extends the service life of the pickup device.

[0044] Furthermore, it also includes a signal monitoring component for acquiring the real-time signal amplitude received by the microphone.

[0045] The control component heats the memory spring 24 via electrode contacts when the difference between the initial signal amplitude and the real-time signal amplitude meets a preset condition, thereby causing the memory spring 24 to contract. The control component can be a separate dedicated microcontroller unit, or it can be a central processing unit or digital signal processor already on the main control board of the smoke machine that performs its function.

[0046] The method for controlling the automatic pop-up of the pickup device in this embodiment of the application is as follows: When the range hood leaves the factory, the equipment is in the hanging state and in standby mode. At this time, the range hood automatically plays and records the standard test signal, and records the initial signal amplitude A through the signal monitoring component.

[0047] During the operation of the smoke machine, the signal monitoring component continuously acquires the real-time signal amplitude B received by the microphone component. The signal monitoring component can detect changes in the sound signal in real time for subsequent analysis.

[0048] The control component receives and calculates in real time the difference Δ=AB between the initial signal amplitude A and the real-time signal amplitude B. Δ is the difference between the initial signal amplitude A and the real-time signal amplitude B, measured in decibels (dB). When this difference meets a preset condition, such as Δ>5dB, it is determined that the channel may be attenuated due to oil blockage. The preset condition refers to the threshold condition used in the pickup device to determine whether the channel is attenuated due to oil blockage. For example, in one possible implementation, the preset condition could be "within 10 consecutive seconds, the average amplitude difference Δ between the initial signal and the real-time signal is continuously greater than 7dB, and the energy proportion of the high-frequency band (>4kHz) decreases by more than 30%".

[0049] If the above criteria are met, the control component heats the memory spring 24 through electrode contacts. The memory spring 24 is made of shape memory alloy material. When heated to the phase transformation temperature, such as 60°C to 80°C, it transforms from martensitic to austenitic phase and undergoes strong contraction. The contraction of the memory spring 24 drives the telescopic end 23 and the pusher 25 to move. The movement of the pusher 25 pushes the channel body 21 axially out of the electrical housing 100, completing the automatic ejection action.

[0050] To ensure reliable heating of the memory spring 24 and avoid overheating, a pulse power supply method with low voltage of 3~5V and high current of 0.5~2A is preferably adopted.

[0051] This method can effectively detect and resolve the problem of decreased sound pickup performance caused by oil clogging, improve the maintenance convenience and service life of the sound pickup device, optimize the user experience, and ensure that the device maintains good performance during long-term use.

[0052] This application also provides a smart range hood, such as Figure 7and 8 As shown, the device includes an inner frame 300 for the range hood, an electrical housing 100, and a sound pickup device. The electrical housing 100 is connected to the inner frame 300. The sound pickup device includes a mounting base 1 and at least one sound pickup component 2. The sound pickup component 2 is connected to the inner frame 300 via the mounting base 1 and is located inside the electrical housing 100. The electrical housing 100 has through holes corresponding to the sound pickup component 2. In this embodiment, the electrical housing 100 is a panel installed outside the inner frame 300 of the range hood, including but not limited to decorative panels, touch screens, or information interaction panels, etc., which are components with acoustic through-hole structures.

[0053] Obviously, the embodiments described above are merely some of the embodiments in this specification, and not all of them. Based on the embodiments in this specification, those skilled in the art can make other variations or modifications without creative effort, and all such variations should fall within the scope of protection of the embodiments in this specification.

[0054] Other embodiments of the embodiments disclosed herein will readily occur to those skilled in the art upon consideration of the specification and practice of the embodiments disclosed herein. This specification is intended to cover any variations, uses, or adaptations of the embodiments thereof that follow the general principles of the embodiments thereof and include common knowledge or customary techniques in the art not disclosed in the embodiments thereof. The specification and embodiments are to be considered exemplary only, and the true scope and spirit of the embodiments thereof are indicated by the following claims.

[0055] It should be understood that the embodiments described herein are not limited to the precise structures already described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from their scope. The scope of the embodiments described herein is limited only by the appended claims.

Claims

1. A sound pickup device, characterized in that, It includes a mounting base (1) and at least one pickup assembly (2), the pickup assembly (2) being detachably connected to the mounting base (1); The pickup assembly (2) includes a channel body (21) and a pop-out assembly. The channel body (21) is disposed inside the electrical housing (100) via the mounting base (1). The pop-out assembly is sleeved on the outside of the channel body (21) and connected to the channel body (21) via the mounting base (1). The pop-out assembly includes a fixed end (22), a telescopic end (23), and a memory spring (24) connected between the two; the telescopic end (23) is provided with a pusher (25), the pusher (25) extends in a direction perpendicular to the axial direction of the channel body (21), and its end engages with the outer wall of the channel body (21); the memory spring (24) is configured to retract after being heated by electricity, thereby driving the pusher (25) to push the channel body (21) to pop out of the electrical housing (100) axially.

2. The pickup device according to claim 1, characterized in that, The main body of the channel (21) is an integrated hollow tubular structure that connects the electrical housing (100), the mounting base (1) and the microphone assembly (200); One end of the channel body (21) is connected to the sound outlet of the microphone assembly (200), and the other end is provided with an annular flange (212). One side of the annular flange (212) abuts against the mounting base (1), and the other side is flush with the outer surface of the electrical housing (100).

3. The pickup device according to claim 1, characterized in that, The mounting base (1) is provided with a channel mounting hole (11) and a pop-out component mounting groove (12) surrounding the outer wall of the channel mounting hole (11). The upper edge of the channel mounting hole (11) is higher than the upper edge of the pop-out component mounting groove (12).

4. The pickup device according to claim 3, characterized in that, A connecting hole (13) is provided between the pop-out component mounting slot (12) and the channel mounting hole (11), and the pusher (25) is connected to the outer wall of the channel body (21) through the connecting hole (13).

5. The pickup device according to claim 1, characterized in that, The outer wall of the channel body (21) is provided with an annular protrusion (211) that engages with the pusher (25).

6. The pickup device according to claim 1, characterized in that, The memory spring (24) is made of shape memory alloy material.

7. The pickup device according to claim 6, characterized in that, The fixed end (22) is provided with electrode contacts for heating the memory spring (24) by electricity.

8. The pickup device according to claim 1, characterized in that, It also includes a signal monitoring component for acquiring the real-time signal amplitude received by the microphone; The control component is used to heat the memory spring (24) through electrode contacts when the difference between the initial signal amplitude and the real-time signal amplitude meets a preset condition, thereby causing the memory spring (24) to contract.

9. The pickup device according to claim 3, characterized in that, Includes a sealing assembly, the sealing assembly comprising: A sealing ring (3) is disposed between the channel body (21) and the sound outlet of the microphone assembly (200); At least one sealing ring (4) is disposed between the inner wall of the channel body (21) and the channel mounting hole (11).

10. A smart range hood, characterized in that, It includes an inner frame of a range hood, an electrical housing (100), and a pickup device as described in any one of claims 1-9, wherein the electrical housing (100) is connected to the inner frame of the range hood; The pickup device includes a mounting base (1) and at least one pickup component (2), the pickup component (2) being connected to the inner frame of the smoke machine via the mounting base (1) and located inside the electrical housing (100).

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