Sound acquisition device for kitchen appliance and kitchen appliance

Abstract

The utility model relates to a sound acquisition device for a kitchen appliance and the kitchen appliance, and the sound acquisition device comprises a housing and an installation wall which is used for being connected with an external installation main body in an attached manner, and the installation wall is provided with a through hole which penetrates into the housing; the flexible vibration isolation piece is arranged in the shell and provided with a pickup channel and a pickup opening which is located in the end of the flexible vibration isolation piece and communicated with the pickup channel, the end, where the pickup opening is located, of the flexible vibration isolation piece is a pickup end, and the pickup end of the flexible vibration isolation piece penetrates outwards through the through hole from the interior of the shell; the part penetrating out of the through hole is provided with a first limiting blocking edge extending towards the side portion, and the first limiting blocking edge of the flexible vibration isolation piece is clamped between the installation wall of the shell and the external installation body in the state that the shell is installed in place on the external installation body. And the sound acquisition element is arranged in the pickup channel of the flexible vibration isolation piece. The device has the advantages of being good in sealing effect, not prone to making contact with oil smoke and capable of effectively isolating vibration so as to guarantee accuracy of sound collection.

Description

Technical Field

[0001] The utility model relates to the technical field of kitchen appliances, in particular to a sound collection device for kitchen appliances and the kitchen appliance. Background Art

[0002] Existing kitchen appliances, such as range hoods, integrated stoves, washing machines, steam ovens, etc., have added voice control modes to facilitate users to switch or select functions. That is, users do not need to operate manually through touch, but can directly achieve it through voice control. For example, the Chinese utility model patent application with application number CN201921358735.6 (authorization announcement number: CN211150097U) discloses an intelligent voice component and a range hood, wherein the intelligent voice component includes a microphone assembly, which includes a microphone assembly, and the microphone assembly includes at least two microphones, and the outside of each microphone is covered with a shielding sleeve connected to the cover plate. The shielding sleeve is made of a material with elastic deformation ability (such as a rubber material), and the shielding sleeve can undergo elastic deformation to allow the microphone to be embedded in the shielding sleeve. A card slot is provided on the shielding sleeve, and the shielding sleeve is connected to the cover plate by the card slot. Through the card slot and the cover plate, multiple microphones can be conveniently connected to the cover plate. The cover plate is connected to the shell, and the microphone and the shielding sleeve are both arranged in the shell. The cover and the housing are threadedly connected by screws or snap-fitted by clips, thereby enclosing the microphone and shielding sleeve in the housing to form an integrated microphone assembly. Clips are provided on the side of the housing for connecting to the range hood panel.

[0003] However, the microphone assembly (i.e., the sound collection device) in the above-mentioned patent application still has certain deficiencies: since it is used in a kitchen environment, the microphone assembly in the above-mentioned patent application is directly arranged on the front side of the panel of the range hood and is not sealed. In this way, the microphone assembly is easily contaminated by contact with the flue gas, thereby reducing its service life; on the other hand, since the shielding sleeve for fixing the microphone element is in contact with the outer shell and the cover plate, and the outer shell is hard-connected to the smoke panel of the range hood through a buckle, the microphone is also easily affected by the vibration source, causing the microphone head to vibrate, affecting the accuracy of sound collection, and causing the voice control function of the range hood to be insensitive.

[0004] Therefore, the existing sound collection device for kitchen appliances needs further improvement. Utility Model Content

[0005] The first technical problem to be solved by the present invention is to provide a sound collecting device for kitchen appliances with good sealing effect and not easily exposed to oil smoke in view of the current status of the existing technology.

[0006] The second technical problem to be solved by the present invention is to provide a sound collection device for kitchen appliances that can effectively isolate vibrations and thus ensure the accuracy of sound collection, in view of the current status of the existing technology.

[0007] The third technical problem to be solved by the present invention is to provide a kitchen appliance using the above-mentioned sound collection device in view of the current status of the existing technology.

[0008] The technical solution adopted by the present invention to solve either the first technical problem or the second technical problem is: a sound collection device for kitchen appliances, comprising:

[0009] The housing is a mounting wall for being connected to the external mounting body, and the mounting wall is provided with a through hole extending to the interior of the housing;

[0010] a flexible vibration isolator disposed within the housing, the flexible vibration isolator having a sound pickup channel and a sound pickup port located at an end of the flexible vibration isolator and communicating with the sound pickup channel; the end of the flexible vibration isolator where the sound pickup port is located is a sound pickup end; the sound pickup end of the flexible vibration isolator passes out from the housing through the through hole, and the portion passing through the through hole has a first limit stop edge extending laterally to be limited at an outer peripheral edge of the through hole; when the housing is mounted in place on the external mounting body, the first limit stop edge of the flexible vibration isolator is sandwiched between the mounting wall of the housing and the external mounting body;

[0011] The sound collecting element is arranged in the sound collecting channel of the flexible vibration isolator.

[0012] Since the first limit stop edge of the flexible vibration isolator itself has a certain thickness, in order to better fit on the external mounting body and thus ensure the sealing of the connection between the sound collection device and the external mounting body, a recessed groove is provided on the outer wall surface of the mounting wall of the shell corresponding to the peripheral area of the through hole. The first limit stop edge of the flexible vibration isolator is received in the recessed groove, and a portion thereof protrudes outward relative to the outer wall surface of the mounting wall of the shell.

[0013] In order to firmly fix the first limit stop edge of the flexible vibration isolator relative to the installation wall of the shell, a positioning hole is provided on the bottom wall of the sink and the first limit stop edge, and a positioning protrusion is provided on the other to be inserted into the positioning hole.

[0014] In order to improve the sound pickup effect, the sound pickup channel is cone-shaped as a whole, the sound collecting element is arranged at the small head of the cone structure of the sound pickup channel, and the sound pickup port is arranged at the large head of the cone structure of the sound pickup channel.

[0015] To ensure the secure attachment of the flexible vibration isolator to the mounting wall of the housing, an elastic member is included. This elastic member acts on the flexible vibration isolator, ensuring that it consistently moves from the through-hole of the housing toward the interior of the housing. The elastic force of the elastic member maintains a secure position relative to the mounting wall of the housing, allowing the first stop edge of the flexible vibration isolator to abut against the mounting wall or the bottom of the recess, ensuring a good seal between the two.

[0016] The above-mentioned elastic member can adopt various existing technologies and may include various elastic elements such as compression springs, torsion springs, and reeds. However, in order to better cooperate with the above-mentioned flexible vibration isolator, the flexible vibration isolator has a second limit stop edge extending toward the side at one end away from its sound pickup port. The elastic member is a spring, which is sleeved on the main body of the flexible vibration isolator, with its first end abutting against the second limit stop edge and the other end abutting against the inner side of the outer peripheral edge of the through hole of the outer shell.

[0017] In order to prevent the flexible vibration isolator from falling off relative to the mounting wall and to better support the spring, the inner side of the outer peripheral edge of the through hole of the shell has a support sleeve extending toward the interior of the shell, the flexible vibration isolator is inserted into the support sleeve, and the spring is arranged outside the support sleeve.

[0018] In order to save materials and facilitate the installation of the flexible vibration isolator on the installation wall, the flexible vibration isolator is a sleeve that runs through the front and back and is thin in the middle and thick at both ends. One of the ports of the sleeve is the sound pickup port.

[0019] As an improvement, the flexible vibration isolation member is a rubber member or a silicone member.

[0020] In order to quickly position and install with the external installation body, the outer wall surface of the installation wall of the shell is further provided with a positioning boss protruding outward for positioning with the external installation body.

[0021] In order to facilitate the installation of flexible vibration isolators, springs and other components, the shell includes a shell body with an opening and a cover covering the opening of the shell body. The side wall of the shell body opposite to the cover is the installation wall.

[0022] In order to reduce the transmission of the vibration source to the sound collecting element through the cover, the cover is not in contact with the flexible vibration isolator.

[0023] The technical solution adopted by the present invention to solve the third technical problem is: a kitchen appliance, comprising a casing and a sound collecting device provided on the casing, wherein the sound collecting device adopts the above-mentioned sound collecting device for kitchen appliances.

[0024] In order to further improve the sealing performance at the connection point between the sound collection device and the casing, the sound collection device is arranged on the inner side of the side wall of the casing, and a sound inlet is opened on the side wall of the casing at a position corresponding to the through hole of the mounting wall. The mounting wall of the sound collection device is connected to the side wall of the casing by bonding, and the bonding layer between the two has at least one circle around the periphery of the first limit stop.

[0025] To prevent external smoke and dust from entering the sound collection device's housing through the sound inlet of the housing and contaminating the sound collection components, the housing's sound inlet is covered with a sound-transmitting protective film. This film typically uses a protective film structure that can isolate smoke and dust without affecting sound transmission, such as a polyethylene film.

[0026] As a further improvement, in order to improve the sealing and the reliability of the installation of the sound collecting device, a circle of sealant is provided at the outer edge of the installation wall of the sound collecting device for sealing contact with the inner wall surface of the side wall of the casing.

[0027] As an improvement, the kitchen appliance is one of a range hood, an integrated stove, a cleaning machine, a steamer, and an oven.

[0028] Compared to the prior art, the present invention offers the following advantages: A flexible vibration isolator, located within the housing of the sound collection device, has a first stop edge at its sound collection end extending laterally to be retained at the outer edge of a through-hole in the housing's mounting wall. When the housing is mounted on an external mounting body, the first stop edge of the flexible vibration isolator is sandwiched between the housing's mounting wall and the external mounting body. This ensures a tight seal between the mounting wall and the external mounting body, preventing smoke from entering the interior of the sound collection device through the junction between the two and contaminating the sound collection element. Furthermore, because the sound collection element is located on the flexible vibration isolator and the first stop edge of the flexible vibration isolator is sandwiched between the housing's mounting wall and the external mounting body, the sound collection element is isolated from the vibration source, reducing vibration transmission. This ensures accurate sound collection by the sound collection element and the reliability of voice control of the kitchen appliance, enhancing the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic diagram of the three-dimensional structure of a range hood according to an embodiment of the present utility model;

[0030] Figure 2 This is a transverse cross-sectional view of the range hood according to an embodiment of the present invention cut along the front-to-back direction;

[0031] Figure 3 This is a schematic diagram of the three-dimensional structure of a sound collecting device installed inside the housing of a range hood according to an embodiment of the utility model;

[0032] Figure 4 This is a schematic diagram of the three-dimensional structure of the sound collection device according to an embodiment of the utility model;

[0033] Figure 5 This is an exploded view of the sound collection device according to an embodiment of the present utility model;

[0034] Figure 6 A cross-sectional view of a sound collection device according to an embodiment of the present utility model;

[0035] Figure 7 This is a schematic diagram of the three-dimensional structure of the shell body of the sound collection device according to an embodiment of the present utility model. DETAILED DESCRIPTION

[0036] The present invention will be described in further detail below with reference to the accompanying drawings and embodiments.

[0037] In the specification and claims of the present invention, directional terms such as "front," "back," "up," "down," "left," "right," "side," "top," and "bottom" are used to describe various exemplary structural parts and components of the present invention. However, these terms are used herein for convenience of description only and are based on the exemplary orientations shown in the accompanying drawings. Since the embodiments disclosed in the present invention can be arranged in different orientations, these directional terms are intended for illustrative purposes only and should not be construed as limiting. For example, "up" and "down" are not necessarily limited to directions opposite to or consistent with the direction of gravity.

[0038] Figure 1-Figure 7 A preferred embodiment of the sound collection device for a kitchen appliance and the kitchen appliance of the present invention is shown. The kitchen appliance can be a range hood, an integrated stove, a washing machine, a steamer, or an oven. The kitchen appliance generally includes a housing 4, on the inside of which a sound collection device 1 can be mounted. Using a range hood as an example, the mounting structure between the sound collection device 1 and the housing 4, as well as the structure of the sound collection device, are described. The housing 4 of the range hood includes a fume hood with a vertically extending panel 400 on the front. The sound collection device is connected as a modular unit to the inside of the panel 400.

[0039] The sound collecting device 1 includes a housing 10 , a flexible vibration isolator 2 , an elastic member, and a sound collecting element 31 .

[0040] Housing 10 includes a housing body 11 with an opening and a cover 12 that covers the opening of housing body 11. The main body of flexible vibration isolator 2, the elastic member, and the sound collecting element 31 are all disposed within housing 10. Specifically, sound collecting element 31 is a microphone mounted on flexible vibration isolator 2.

[0041] In some embodiments, the outer shell 10 is an overall cubic structure. The side wall of the shell body 11 opposite the cover 12 is a flat plate structure. This flat plate structure can be abutted against the inner side of an external mounting body, such as the panel of the aforementioned range hood, and thus constitutes a mounting wall 111 of the outer shell 10. The mounting wall 111 is provided with a through hole 1110 extending into the interior of the outer shell 10, and a support sleeve 113 extending toward the interior of the outer shell 10 is provided at the outer edge of the through hole 1110. The support sleeve 113 is an integral structure with the shell body 11. Both the shell body 11 and the cover 12 are made of plastic and are secured together using screws 13. Specifically, the interior of the shell body 11 has a connecting post 115 extending from the mounting wall 111 toward the side where the cover 12 is located. The end of the connecting post 115 has a screw hole. After the cover 12 is closed over the opening of the shell body 11, the screw 13 passes through the cover 12 and connects to the connecting post 115 of the shell body 11.

[0042] The flexible vibration isolator 2 can be made of rubber or silicone. After deformation, it can return to its original state, facilitating squeeze installation in relatively confined spaces. The flexible vibration isolator 2 is a sleeve that runs through the front and back, tapering in the middle and widening at the ends. The microphone is mounted in the middle of the flexible vibration isolator 2, roughly within the narrower section of the channel, allowing it to be clamped to the flexible vibration isolator 2 itself. The internal channel of the flexible vibration isolator 2 is divided into two sections, front and back, starting from the location of the microphone. The front section serves as the sound pickup channel 20, while one of the ends of the flexible vibration isolator 2 serves as the sound pickup port 210. The corresponding sensing end of the microphone mounted on the flexible vibration isolator 2 faces the sound pickup channel 20, while the wires connected to the microphone body can be routed outward through the rear section of the flexible vibration isolator 2's internal channel. The sound pickup channel 20 is generally conical in shape, with the sound collection element 31 located at the small end of the cone, and the sound pickup port 210 located at the large end of the cone. The rear section of the internal channel of the flexible vibration isolator 2 can also be configured to be conical, on the one hand to save material, and on the other hand to facilitate the output of the microphone.

[0043] The end portion of the flexible vibration isolator 2 at which the sound pickup opening 210 is located is referred to as the sound pickup end 21. The sound pickup end 21 of the flexible vibration isolator 2 extends outward from the housing 10 through the support sleeve 113 and the through-hole 1110. The portion extending outward from the through-hole 1110 has a first stop edge 221 extending laterally to retain the position at the outer edge of the through-hole 1110. When the housing 10 is mounted on the panel of the casing 4, the sound pickup opening 210 of the flexible vibration isolator 2 (i.e., the through-hole 1110 of the housing 10) is aligned with the corresponding sound inlet 40 on the panel. The first stop edge 221 of the flexible vibration isolator 2 is sandwiched between the mounting wall 111 of the housing 10 and the external mounting body. This ensures a tight seal between the mounting wall 111 of the sound collection device and the panel, preventing smoke from entering the interior of the sound collection device through the junction between the two and contaminating the sound collection element 31. On the other hand, since the sound collecting element 31 is arranged on the flexible vibration isolator 2, and the first limit stop edge 221 of the flexible vibration isolator 2 is clamped between the mounting wall 111 of the shell 10 and the panel, the flexible vibration isolator 2 itself has a vibration absorption function, and thus can isolate the sound collecting element 31 from the vibration source, reduce vibration transmission, and thus ensure the accuracy of sound collection by the sound collecting element 31 and the reliability of voice control of the kitchen appliance, thereby improving the user experience.

[0044] Since the first limit stop 221 of the flexible vibration isolator 2 itself has a certain thickness, in order to better fit on the inner side of the panel, thereby ensuring the sealing of the connection between the sound collection device and the panel, in some embodiments, a recessed groove 1111 is opened on the outer wall surface of the mounting wall 111 of the shell 10 corresponding to the outer area of the through hole 1110, and the shape of the recessed groove 1111 is basically consistent with the shape of the first limit stop 221 of the flexible vibration isolator 2, wherein the thickness of the first limit stop 221 is slightly larger than the depth of the recessed groove 1111. After the first limit stop 221 of the flexible vibration isolator 2 is received in the recessed groove 1111, a portion of it will protrude outward relative to the outer wall surface of the mounting wall 111 of the shell 10, so that when it is installed with the panel of the casing 4, it can be abutted against the back of the panel to achieve a good seal.

[0045] In some embodiments, one of the bottom wall of the sink 1111 and the first limit stop 221 is provided with a positioning hole 2210, and the other is provided with a positioning protrusion 112 inserted into the positioning hole 2210. Figure 6 and Figure 7 As shown, four positioning protrusions 112 are provided on the bottom wall of the sink 1111, and four positioning holes 2210 are correspondingly opened on the first limit stop 221, thereby achieving a secure fixation of the first limit stop 221 of the flexible vibration isolator 2 relative to the mounting wall 111 of the housing 10, thereby preventing the flexible vibration isolator 2 from loosening.

[0046] The elastic member in this embodiment is a spring 32. The flexible vibration isolator 2 has a second stop edge 222 extending laterally at one end away from its sound pickup port 210. The spring 32 is correspondingly mounted on the main body of the flexible vibration isolator 2 and the support sleeve 113 of the shell body 11. Once the spring 32 is installed, its first end abuts against the second stop edge 222, while its other end abuts against the inner side of the outer peripheral edge of the through hole 1110 of the outer shell 10. Under the elastic force of the spring 32, the flexible vibration isolator consistently tends to move from the through hole 1110 of the outer shell 10 toward the interior of the outer shell 10. Under the elastic force of the elastic member, the first stop edge 221 of the flexible vibration isolator 2 remains well fixed relative to the mounting wall 111 of the outer shell 10, allowing the first stop edge 221 of the flexible vibration isolator 2 to abut against the bottom surface of the recess 1111, ensuring a good seal between the two.

[0047] See also Figure 6 In this embodiment, the flexible vibration isolator 2 is supported and fixed by the spring 32. Therefore, the outer shell of the housing 10 does not need to contact or abut the flexible vibration isolator 2. As a result, the transmission of the vibration source to the sound collecting element 31 through the cover 12 can be reduced, thereby ensuring the accuracy of sound collection by the sound collecting element 31.

[0048] In order to quickly position and install with the panel of the casing 4, a positioning boss 114 protruding outward for positioning with the panel is also provided on the outer wall surface of the mounting wall 111 of the outer shell 10. The positioning boss 114 can be provided with two spaced apart on the left and right, and the back of the panel can be provided with a corresponding socket for inserting the positioning boss 114.

[0049] The mounting wall 111 of the sound collection device in this embodiment is bonded to the side wall of the housing 4, with the adhesive layer 41 extending at least one circumference around the first stop edge 221. To further enhance sealing and secure installation, a ring of sealant 43 is applied to the outer edge of the mounting wall 111, creating a sealant contact with the back of the panel. To prevent external smoke and dust from entering the housing 10 of the sound collection device through the sound inlet 40 of the housing 4 and contaminating the sound collection element 31, the sound inlet 40 of the housing 4 is covered with a sound-transmitting protective membrane 42. This membrane 42 can typically be constructed of a protective membrane structure that isolates smoke and dust without affecting sound transmission, such as a polyethylene film.

[0050] The installation process of the sound collection device is as follows:

[0051] First, fix the flexible vibration isolator 2 to the shell body 11 of the housing 10, then install the microphone in the flexible vibration isolator 2, install the cover plate, and the modular unit of the sound collection device is assembled;

[0052] Glue the sound collection device with double-sided tape on the mounting wall 111 to the back of the panel. During installation, align the two positioning posts on the mounting wall 111 of the housing 10 with the jacks on the panel to achieve accurate positioning.

[0053] Finally, sealant 43 or silicone glue is applied around the installation wall 111 to enhance sealing and fixation.

[0054] Based on the above embodiments, other embodiments can be obtained by replacing and improving the relevant technical features. The rear section of the internal channel of the flexible vibration isolator 2 does not need to be provided with a tapered channel. Instead, a small-diameter through-hole for the microphone wire to pass through can be provided on the basis of the closed solid structure.

Claims

1. A sound collection device for kitchen appliances, characterized in that include: The housing (10) has a mounting wall (111) for being connected to an external mounting body, wherein the mounting wall (111) is provided with a through hole (1110) penetrating into the interior of the housing (10); A flexible vibration isolator (2) is arranged in the shell, the flexible vibration isolator (2) has a sound pickup channel (20) and a sound pickup port (210) located at the end of the flexible vibration isolator (2) and connected to the sound pickup channel (20), the end position where the sound pickup port (210) of the flexible vibration isolator (2) is located is a sound pickup end (21), the sound pickup end (21) of the flexible vibration isolator (2) passes out from the shell (10) through the through hole (1110), and the part passing through the through hole (1110) has a first limit stop edge (221) extending to the side to limit the outer peripheral edge of the through hole (1110), and when the shell (10) is installed in place on the external installation body, the first limit stop edge (221) of the flexible vibration isolator (2) is clamped between the installation wall (111) of the shell (10) and the external installation body; A sound collecting element (31) is provided in the sound collecting channel (20) of the flexible vibration isolating member (2).

2. The sound collection device for kitchen appliances according to claim 1, characterized in that: A recessed groove (1111) is provided on the outer wall surface of the mounting wall (111) of the housing (10) in a peripheral area corresponding to the through hole (1110); the first limit stop (221) of the flexible vibration isolation member (2) is received in the recessed groove (1111), and a portion thereof protrudes outwardly relative to the outer wall surface of the mounting wall (111) of the housing (10).

3. The sound collection device for kitchen appliances according to claim 2, characterized in that: One of the bottom wall of the sink (1111) and the first limit stop edge (221) is provided with a positioning hole (2210), and the other is provided with a positioning protrusion (112) inserted into the positioning hole (2210).

4. The sound collection device for kitchen appliances according to claim 1, characterized in that: The sound pickup channel (20) is in a cone shape as a whole, the sound collecting element (31) is arranged at the small head of the cone structure of the sound pickup channel (20), and the sound pickup port (210) is arranged at the large head of the cone structure of the sound pickup channel (20).

5. The sound collection device for kitchen appliances according to any one of claims 1 to 4, characterized in that: It also includes an elastic member that acts on the flexible vibration isolating member (2) and causes the flexible vibration isolating member (2) to always have a tendency to move from the through hole (1110) of the housing (10) toward the inside of the housing (10).

6. The sound collection device for kitchen appliances according to claim 5, characterized in that: The flexible vibration isolator (2) has a second limit stop edge (222) extending toward the side at one end away from the sound pickup port (210), and the elastic member is a spring (32). The spring (32) is sleeved on the main body of the flexible vibration isolator (2), with a first end abutting against the second limit stop edge (222) and the other end abutting against the inner side of the outer peripheral edge of the through hole (1110) of the housing (10).

7. The sound collection device for kitchen appliances according to claim 6, characterized in that: The inner side of the outer peripheral edge of the through hole (1110) of the housing (10) is provided with a support sleeve (113) extending toward the interior of the housing (10); the flexible vibration isolation member (2) is inserted into the support sleeve (113); and the spring (32) is sleeved outside the support sleeve (113).

8. The sound collection device for kitchen appliances according to claim 7, characterized in that: The flexible vibration isolator (2) is a sleeve that is continuous from front to back and thin in the middle and thick at both ends. One of the ends of the sleeve is the sound pickup port (210).

9. The sound collection device for kitchen appliances according to any one of claims 1 to 4, characterized in that: The flexible vibration isolation member (2) is a rubber member or a silicone member.

10. The sound collection device for kitchen appliances according to any one of claims 1 to 4, characterized in that: The outer wall surface of the mounting wall (111) of the housing (10) is also provided with a positioning boss (114) protruding outwards for positioning with an external mounting body.

11. The sound collection device for kitchen appliances according to any one of claims 1 to 4, characterized in that: The housing (10) comprises a housing body (11) with an opening and a cover body (12) covering the opening of the housing body (11); the side wall of the housing body (11) opposite to the cover body (12) is the installation wall (111).

12. The sound collection device for kitchen appliances according to claim 11, characterized in that: The cover (12) does not contact the flexible vibration isolator (2).

13. A kitchen appliance comprising a housing (4) and a sound collecting device provided on the housing (4), characterized in that: The sound collection device is the sound collection device for kitchen appliances according to any one of claims 1 to 12.

14. The kitchen appliance according to claim 13, wherein: The sound collection device is arranged on the inner side of the side wall of the housing (4), and a sound inlet (40) is provided on the side wall of the housing (4) at a position corresponding to the through hole (1110) of the mounting wall (111). The mounting wall (111) of the sound collection device is connected to the side wall of the housing (4) by bonding, and the bonding layer (41) between the two has at least one circle around the periphery of the first limit stop (221).

15. The kitchen appliance according to claim 14, characterized in that: The sound inlet (40) of the housing (4) is also covered with a sound-transmitting protective film (42).

16. The kitchen appliance according to claim 13, wherein: A circle of sealant (43) is also provided at the outer peripheral edge of the mounting wall (111) of the sound collecting device for sealing contact with the inner wall surface of the side wall of the housing (4).

17. The kitchen appliance according to claim 13, wherein: The kitchen appliance is one of a range hood, an integrated stove, a cleaning machine, a steamer, and an oven.

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