Microphone mounting structure and household appliance

Abstract

The invention relates to the technical field of household electrical appliances, and discloses a microphone installation structure and a household electrical appliance, the microphone installation structure comprises a shell, the shell is provided with an installation cavity and a sound receiving hole, and the installation cavity is communicated with the sound receiving hole; the microphone is arranged in the mounting cavity, a pickup hole of the microphone faces the pickup hole of the microphone, a first annular convex part is arranged on the inner circumference of the sound receiving hole, the first annular convex part is arranged in the circumferential direction of the sound receiving hole, and the first annular convex part is located in the middle of the sound receiving hole in the axial direction of the sound receiving hole. According to the microphone mounting structure, the creepage distance can be prolonged while the axial size of the sound receiving hole is not increased, the sound receiving effect of the microphone is not affected while the creepage risk is avoided, and the microphone mounting structure can meet the safety requirement under the condition that the sound receiving hole is small, so that the sound receiving effect of the microphone is improved. Therefore, the microphone mounting structure can be suitable for a product with a relatively compact structure, and the application range of the microphone mounting structure is expanded.

Description

Technical Field

[0001] The present invention relates to the technical field of household appliances, and in particular to a microphone mounting structure and a household appliance. Background Art

[0002] As voice interaction gradually becomes the most popular human-computer interaction method, home appliances need to be equipped with voice interaction modules. Voice interaction modules usually include a microphone, a speaker, and a control module.

[0003] In related art, microphone mounting structures are provided with a sound receiving hole, with the microphone's sound pickup hole positioned toward the sound output hole. Because microphones are electrically charged components and are connected to the outside world, dust and moisture can easily accumulate around the inner periphery of the sound receiving hole after prolonged use, forming a conductive path. Therefore, the axial dimension of the sound receiving hole needs to be set larger to avoid the risk of creepage. However, when the axial dimension of the sound receiving hole is set larger, the microphone's sound reception quality is easily affected. Summary of the Invention

[0004] In view of this, the present invention provides a microphone mounting structure and a household appliance to solve the problem in the related art that when the axial dimension of the sound receiving hole is set to be large, it is easy to affect the sound receiving effect of the microphone.

[0005] In a first aspect, the present invention provides a microphone mounting structure, comprising:

[0006] The shell is provided with a mounting cavity and a sound receiving hole, and the mounting cavity is connected to the sound receiving hole;

[0007] The microphone is arranged in the installation cavity, and the pickup hole of the microphone is arranged toward the sound receiving hole. A first annular protrusion is provided on the inner periphery of the sound receiving hole. The first annular protrusion is arranged along the circumference of the sound receiving hole, and along the axial direction of the sound receiving hole, the first annular protrusion is located in the middle position of the sound receiving hole.

[0008] Beneficial effect: The microphone mounting structure of the embodiment of the present invention has a first annular protrusion provided in the sound receiving hole, and the first annular protrusion is provided in the middle position of the sound receiving hole. This makes it possible that when dust and moisture accumulate on the inner periphery of the sound receiving hole to form a conductive path, the current needs to be transmitted outward along the surface of the first annular protrusion, thereby extending the creepage distance without increasing the axial size of the sound receiving hole, thereby avoiding the risk of creepage while not affecting the sound receiving effect of the microphone.

[0009] On this basis, since the microphone mounting structure of the embodiment of the present invention allows the axial dimension of the sound receiving hole to not be set larger while meeting safety regulations, it can be applied to products with more compact structures, thereby improving the applicability of the microphone mounting structure and helping to improve the microphone's sound receiving effect.

[0010] In an optional embodiment, the minimum distance between the first annular protrusion and the sound receiving hole of the microphone is d1 min ;

[0011] 1.5mm≤d1 min and / or,

[0012] The sound receiving hole has a first side and a second side that are arranged opposite to each other. The microphone is arranged on the second side of the sound receiving hole. The minimum distance between the first side and the sound receiving hole of the microphone is d2. min The minimum dimension of the first annular protrusion along the axial direction of the sound receiving hole is d3 min ,d1 min ≤d2 min -d3 min .

[0013] Beneficial effect: When d1 min When within the above range, it can be ensured that the current will extend along the wall of the first annular protrusion instead of directly penetrating the first annular protrusion, ensuring that the first annular protrusion can reliably play the role of extending the creepage distance. The sound receiving hole meets safety requirements and has good structural strength, which helps to improve the aesthetics of the microphone installation structure.

[0014] In an optional embodiment, 1.5 mm ≤ d1 min ≤5.3mm; and / or,

[0015] 1.5mm≤d2 min ≤8mm; and / or,

[0016] 0.7mm≤d3 min ≤5mm.

[0017] Beneficial effect: When d1 min When it is within the above range, it can ensure that the sound receiving hole meets the safety requirements, has good structural strength, and helps to improve the aesthetics of the microphone installation structure.

[0018] In an optional embodiment, the sound receiving hole includes a first hole segment, a second hole segment, and a third hole segment sequentially arranged in a direction away from the microphone, and the inner periphery of the first annular protrusion forms the second hole segment.

[0019] In an optional embodiment, the minimum diameter of the first hole section is d4 min , the maximum diameter of the second hole section is d5 max ,d5 max ≤d4 min and / or,

[0020] The maximum diameter of the first hole segment is d4 max, and the minimum diameter of the microphone is d8 min , d4 max≤d8min .

[0021] Beneficial effect: Through such a setting, the minimum diameter of the first hole segment is greater than or equal to the maximum diameter of the second hole segment, so that a connecting segment extending along the radial direction of the sound receiving hole can be formed between the first hole segment and the second hole segment, and the connecting segment can be used to extend the creepage distance of the sound receiving hole. The maximum diameter of the first hole segment is less than or equal to the minimum diameter of the microphone, so that the microphone can be prevented from moving toward the first hole segment and detaching from the mounting cavity.

[0022] In an optional embodiment, the minimum diameter of the second hole segment is d5 min ;The maximum diameter of the microphone pickup hole is d9 max ,d9 max ≤d5 min and / or,

[0023] The maximum diameter of the second hole segment is d5 max, and the minimum diameter of the microphone is d8 min , d5 max≤d8 min .

[0024] Advantageous Effect: This arrangement ensures that the minimum diameter of the second hole segment is greater than or equal to the diameter of the microphone's sound pickup hole, thereby preventing the second hole segment from interfering with the microphone's sound reception and ensuring good sound reception. The maximum diameter of the second hole segment is less than or equal to the minimum diameter of the microphone, preventing the microphone from moving toward the second hole segment and dislodging from the mounting cavity.

[0025] In an optional embodiment, the minimum diameter of the third hole section is d6 min ;

[0026] The maximum diameter of the second hole section is d5 max , d5 max ≤d6 min and / or,

[0027] d6 min ≤7mm.

[0028] Beneficial effect: Through such a setting, the maximum diameter of the second hole segment is less than or equal to the minimum diameter of the third hole segment, and a connecting segment extending radially along the sound receiving hole can be formed at the connection between the second hole segment and the third hole segment. The connecting segment can increase the creepage distance without increasing the axial size of the sound receiving hole.

[0029] d6 min ≤7mm, which can prevent the user's fingers from entering through the third hole section, thereby improving the safety of the microphone installation structure.

[0030] In an optional embodiment, the microphone further includes:

[0031] Microphone body;

[0032] The vibration-damping sleeve is sleeved on the outside of the microphone body. A avoidance opening is provided on the vibration-damping sleeve. The projection of the avoidance opening along the axial direction of the sound receiving hole at least partially overlaps with the projection of the sound pickup hole of the microphone along the axial direction of the sound receiving hole.

[0033] Beneficial effect: The vibration damping sleeve can isolate mechanical vibrations and physical shocks, preventing these interferences from being transmitted to the microphone diaphragm through the shell, thereby significantly reducing low-frequency noise and friction noise and improving recording clarity.

[0034] In an optional embodiment, the sound receiving hole has a first side and a second side arranged opposite to each other, the microphone is arranged on the second side of the sound receiving hole, and the minimum distance between the first side and the sound receiving hole of the microphone is d2 min , the average diameter of the first hole section is d4 mean , the average diameter of the second hole section is d5 mean , the average diameter of the third hole section is d6 mean , the diameter of the side of the avoidance opening facing the sound receiving hole is d7;

[0035] 0.5(d6 mean -2d5 mean +d4 mean )≥8-d2 min -0.5(d4 mean -d7).

[0036] Beneficial effect: When d2 min , d4 mean d5 mean , d6 mean When the size relationship with d7 meets the above range, it can ensure that the creepage distance meets the safety requirements.

[0037] In an optional embodiment, a second annular protrusion is provided on the shell, and the sound receiving hole is provided on the inner periphery of the second annular protrusion.

[0038] Beneficial effect: Through such an arrangement, the second annular protrusion can be used to increase the radial dimension of the sound receiving hole, thereby ensuring that the creepage distance meets safety requirements when the shell material thickness is relatively thin.

[0039] In an optional embodiment, the microphone mounting structure further includes an air outlet grille provided on the housing, and an avoidance groove is provided at a position of the air outlet grille corresponding to the second annular protrusion.

[0040] Beneficial effects: The air grille is arranged at the air outlet of the microphone mounting structure, and can be used to control the direction of airflow, filter impurities, protect internal components, and optimize aerodynamic performance.

[0041] On this basis, the air outlet grille is provided with an avoidance groove at a position corresponding to the second annular convex portion, which avoids the second annular convex portion and ensures that the appearance of the second annular convex portion is not prominent, which helps to improve the overall aesthetics.

[0042] In an optional embodiment, the maximum dimension of the avoidance groove along the axial direction of the sound receiving hole is d10 max The air outlet grille also includes a connecting portion on the side away from the avoidance slot. The minimum distance between the top surface of the grille teeth of the air outlet grille and the avoidance slot is d11. min ;

[0043] 1≤d 11 min :d 10 max ≤4.

[0044] Beneficial effect: When the ratio between the connecting portion and the avoidance groove is within the above range, it can ensure that the air outlet grille fully avoids the second annular protrusion without damaging the structural strength of the air outlet grille.

[0045] In an optional embodiment, an outer periphery of the second annular protrusion is provided with an avoidance slope, and the avoidance slope is inclined toward the central axis of the second annular protrusion in a direction away from the microphone.

[0046] Beneficial effect: By such an arrangement, the distance between the second annular protrusion and the air outlet grille can be increased, thereby reducing the glue reduction depth of the air outlet grille, thereby avoiding affecting the structural strength of the air outlet grille.

[0047] In a second aspect, the present invention further provides a household appliance, comprising:

[0048] The microphone mounting structure of the first aspect of the present invention;

[0049] speaker;

[0050] The control module, the speaker is communicatively connected to the control module, and the control module is communicatively connected to the microphone of the microphone mounting structure.

[0051] Beneficial effect: During use of the household appliance of the embodiment of the present invention, the microphone of the microphone mounting structure can be used to collect voice instructions, the control module can generate corresponding interactive instructions through the voice instructions collected by the microphone, and control the speaker to play the interactive instructions.

[0052] Therefore, the household appliance of the embodiment of the present invention has a voice interaction function, and the user can interact with it by voice without going near the household appliance, and can obtain adjustment feedback information of the household appliance, which is easy to operate and provides a good user experience.

[0053] On this basis, the household appliance of the second aspect of the present invention includes or uses the microphone mounting structure of the first aspect of the present invention, and thus has its beneficial effect, namely: it can extend the creepage distance without increasing the axial size of the sound receiving hole, thereby avoiding the risk of creepage while not affecting the sound receiving effect of the microphone.

[0054] Furthermore, since the microphone mounting structure of the embodiment of the present invention allows the axial dimension of the sound receiving hole to not be set larger while meeting safety regulations, it can be applied to products with more compact structures, thereby improving the applicability of the microphone mounting structure and helping to improve the sound receiving effect of the microphone. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0056] Figure 1 A three-dimensional diagram of a microphone mounting structure according to an embodiment of the present invention;

[0057] Figure 2 for Figure 1 A is an enlarged schematic diagram;

[0058] Figure 3 A side view of a microphone mounting structure according to an embodiment of the present invention;

[0059] Figure 4 for Figure 3 A magnified schematic diagram of point B in FIG.

[0060] Figure 5 This is a front view of a microphone mounting structure according to an embodiment of the present invention;

[0061] Figure 6 for Figure 5 The enlarged schematic diagram of point C in FIG.

[0062] Figure 7 A household appliance according to an embodiment of the present invention;

[0063] Figure 8 for Figure 7 The enlarged schematic diagram of point D in FIG.

[0064] Figure 9 for Figure 7 The enlarged schematic diagram of point D in FIG.

[0065] Description of reference numerals:

[0066] 1. Housing; 101. Mounting cavity; 102. Sound receiving hole; 1021. First annular protrusion; 1022. First hole segment; 1023. Second hole segment; 1024. Third hole segment; 103. Second annular protrusion; 1031. Avoidance slope; 104. Panel; 105. Front housing;

[0067] 2. Microphone; 201. Sound pickup hole;

[0068] 3. Vibration damping sleeve; 301. Avoidance;

[0069] 4. Air outlet grille; 401. Avoidance slot; 402. Connecting part. DETAILED DESCRIPTION

[0070] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts shall fall within the scope of protection of the present invention.

[0071] Current home appliances still rely on touchscreen controls and infrared remote controls for human-machine interaction, which can be inconvenient. Traditional touchscreen controls require consumers to walk to the machine, requiring additional movement.

[0072] Although infrared remote control can solve the above problems, it requires a remote control. Users need to find the remote control before use, and the battery needs to be replaced after a long period of non-use, resulting in a poor operating experience.

[0073] The following combination Figures 1 to 9 , describing embodiments of the present invention.

[0074] According to an embodiment of the present invention, on the one hand, a microphone mounting structure is provided, including a housing 1 and a microphone 2 .

[0075] The housing 1 is provided with a mounting cavity 101 and a sound receiving hole 102, which are in communication with each other. A microphone 2 is disposed within the mounting cavity 101, with the sound receiving hole 201 of the microphone 2 facing the sound receiving hole 102. A first annular protrusion 1021 is provided on the inner periphery of the sound receiving hole 102. The first annular protrusion 1021 is disposed along the circumference of the sound receiving hole 102 and is located in the middle of the sound receiving hole 102 in the axial direction of the sound receiving hole 102.

[0076] The microphone mounting structure of the embodiment of the present invention has a first annular protrusion 1021 provided in the sound hole 102. The first annular protrusion 1021 is provided in the middle position of the sound hole 102. When dust and moisture accumulate on the inner periphery of the sound hole 102 to form a conductive path, the current needs to be transmitted outward along the surface of the first annular protrusion 1021, thereby extending the creepage distance without increasing the axial dimension of the sound hole 102, thereby avoiding the risk of creepage while not affecting the sound receiving effect of the microphone 2.

[0077] On this basis, since the microphone mounting structure of the embodiment of the present invention allows the axial dimension of the sound receiving hole to not be set larger and can also meet safety regulations, it can be applied to products with more compact structures, thereby improving the applicability of the microphone mounting structure and helping to improve the microphone's sound receiving effect.

[0078] In the description of the embodiments of the present application, it should be noted that the first annular protrusion 1021 is located in the middle position of the sound hole 102, which means that the first annular protrusion 1021 is located between the two ends of the sound hole 102, and is not necessarily the center point of the line connecting the two ends of the sound hole 102.

[0079] In one embodiment, the first side surface and the second side surface of the first annular protrusion 1021 are both planes, and the first side surface and the second side surface are two side surfaces of the first annular protrusion that are oppositely arranged along the central axis direction of the sound receiving hole 102 .

[0080] As an alternative implementation, in an embodiment not shown in the drawings, the radial cross-section of the first annular protrusion 1021 can also be arc-shaped.

[0081] In one embodiment, Figure 7 and Figure 8 As shown, the minimum distance between the first annular protrusion 1021 and the sound receiving hole 102 of the microphone 2 is d1 min ;1.5mm≤d1 min .

[0082] By such a configuration, it can be ensured that the current will extend along the wall surface of the first annular protrusion 1021 without directly penetrating the first annular protrusion 1021, thereby ensuring that the first annular protrusion 1021 can reliably play the role of extending the creepage distance.

[0083] In one embodiment, the maximum dimension of the first annular protrusion 1021 along the axial direction of the sound receiving hole 102 is d3. max When the first annular protrusion 1021 is provided on the exterior surface of the microphone mounting structure, d3 max The size is preferably greater than or equal to 0.9 mm.

[0084] In the description of the embodiments of the present application, it should be noted that the appearance surface refers to the outer surface of the product that can be observed under normal use.

[0085] In one embodiment, d3 max The thickness of the housing 1 is determined to prevent the first annular protrusion 1021 from shrinking and damaging the aesthetics of the microphone mounting structure.

[0086] For example, when the thickness of the shell 1 is 2.2 mm, d3 max ≤1mm.

[0087] When the thickness of the shell 1 is 2 mm, d3 max ≤0.9mm.

[0088] As a variable implementation, in an embodiment not shown in the drawings, when the first annular protrusion 1021 is not provided on the exterior surface of the microphone mounting structure, d3 max The size of is not affected by the material thickness of the shell 1.

[0089] In one embodiment, d3 max 1.2mm.

[0090] In one embodiment, the sound receiving hole 102 has a first side and a second side that are opposite to each other, and the microphone 2 is disposed on the second side of the sound receiving hole 102. The minimum distance between the first side and the sound pickup hole 201 of the microphone 2 is d2. min The minimum dimension of the first annular protrusion 1021 along the axial direction of the sound receiving hole 102 is d3 min ,d1 min ≤d2 min -d3 min .

[0091] In one embodiment, Figure 8 As shown, 1.5mm≤d1 min ≤5.3mm. 1.5mm≤d2 min ≤8mm; 0.7mm≤d3 min ≤5mm.

[0092] In one embodiment, d2 min 6.5mm, d3 min 1.2mm.

[0093] When d1 min When within the above range, it can be ensured that the current will extend along the wall of the first annular protrusion instead of directly penetrating the first annular protrusion, ensuring that the first annular protrusion can reliably play the role of extending the creepage distance. The sound receiving hole meets safety requirements and has good structural strength, which helps to improve the aesthetics of the microphone installation structure.

[0094] In one embodiment, d1 min 2mm.

[0095] In one embodiment, the sound receiving hole 102 includes a first hole segment 1022 , a second hole segment 1023 and a third hole segment 1024 sequentially arranged in a direction away from the microphone 2 , and the second hole segment 1023 is formed on the inner periphery of the first annular protrusion 1021 .

[0096] In one embodiment, Figure 9 As shown, the minimum diameter of the first hole section 1022 is d4 min The maximum diameter of the second hole section 1023 is d5 max ,d5 max ≤d4 min .

[0097] By such a setting, the minimum diameter of the first hole segment 1022 is greater than or equal to the maximum diameter of the second hole segment 1023, so that a connecting segment extending in the radial direction of the sound receiving hole 102 can be formed between the first hole segment 1022 and the second hole segment 1023, and the connecting segment can be used to extend the creepage distance.

[0098] In one embodiment, the radial cross-section of the first hole segment 1022 is circular, and d4 is the diameter of the radial cross-section of the first hole segment 1022 .

[0099] As a convertible implementation, in an embodiment not shown in the drawings, the radial cross-section of the first hole segment 1022 can also be set to a triangle, square or other polygon, and in this case d4 is the diameter of the inscribed circle of the radial cross-section of the first hole segment 1022.

[0100] In one embodiment, the maximum diameter of the first hole section 1022 is d4. max , the minimum diameter of microphone 2 is d8 min , d4 max≤d8 min .

[0101] By configuring in this way, the maximum diameter of the first hole section 1022 is smaller than or equal to the minimum diameter of the microphone 2 , thereby preventing the microphone 2 from moving toward the first hole section 1022 and escaping from the installation cavity 101 .

[0102] In one embodiment, the minimum diameter d4 of the first hole section 1022 is min It is 5.28mm.

[0103] In one embodiment, the minimum diameter of the second hole section 1023 is d5 min The maximum diameter of the pickup hole 201 of the microphone 2 is d9 max ,d9 max ≤d5min .

[0104] By such arrangement, the minimum diameter of the second hole segment 1023 is greater than or equal to the maximum diameter of the microphone pickup hole 201 , thereby preventing the second hole segment 1023 from affecting the sound reception of the microphone 2 , thereby ensuring a good sound reception effect.

[0105] The sound pickup hole 201 may be a single sound pickup hole 201 or a plurality of small holes distributed in an array.

[0106] When the sound pickup hole 201 is a single sound pickup hole 201, and the single sound pickup hole 201 is a round hole, d9 max is the diameter of the sound pickup hole 201.

[0107] When the sound pickup hole 201 is a single sound pickup hole 201, and the single sound pickup hole 201 is a square, a triangle or other shapes, d9 max is the diameter of the circumscribed circle of the sound pickup hole 201.

[0108] When the sound pickup holes 201 are multiple small holes distributed in an array, d9 max is the diameter of the smallest circle that can enclose all the holes.

[0109] In one embodiment, d9 max =2.5mm.

[0110] In one embodiment, the radial cross-section of the second hole segment 1023 is circular, and d5 is the diameter of the radial cross-section of the second hole segment 1023 .

[0111] As a convertible implementation, in an embodiment not shown in the drawings, the radial cross-section of the second hole segment 1023 can also be set to a triangle, square or other polygon, and in this case d5 is the diameter of the inscribed circle of the radial cross-section of the second hole segment 1023.

[0112] In one embodiment, the maximum diameter of the second hole section 1023 is d5 max , the minimum diameter of microphone 2 is d8 min , d5 max≤d8 min .

[0113] By configuring in this way, the maximum diameter of the second hole section 1023 is smaller than or equal to the minimum diameter of the microphone 2 , thereby preventing the microphone 2 from moving toward the second hole section 1023 and escaping from the installation cavity 101 .

[0114] In one embodiment, the maximum diameter d5 of the second hole section 1023 is max It is 2.7mm.

[0115] In one embodiment, the minimum diameter of the third hole segment 1024 is d6.min ;

[0116] The maximum diameter of the second hole section 1023 is d5 max, d5 max ≤ d6 min .

[0117] By such a setting, the maximum diameter of the second hole segment 1023 is less than or equal to the minimum diameter of the third hole segment 1024, and a connecting segment extending radially along the sound receiving hole 102 can be formed at the connection between the second hole segment 1023 and the third hole segment 1024. The connecting segment can increase the creepage distance without increasing the axial size of the sound receiving hole 102.

[0118] In one embodiment, the minimum diameter d6 of the third hole section 1024 is min ≤7mm.

[0119] By such an arrangement, it is possible to prevent the user's fingers from being inserted through the third hole section 1024 , thereby improving the safety of the microphone installation structure.

[0120] In one embodiment, d6 min 5mm.

[0121] In one embodiment, the radial cross-section of the third hole segment 1024 is circular, and d6 is the diameter of the radial cross-section of the third hole segment 1024 .

[0122] As a convertible implementation, in an embodiment not shown in the drawings, the radial cross-section of the third hole segment 1024 can also be set to a triangle, square or other polygon, in which case d6 is the diameter of the inscribed circle of the radial cross-section of the third hole segment 1024.

[0123] In one embodiment, Figure 9 As shown, the microphone includes a microphone body and a vibration-damping sleeve 3 .

[0124] The vibration reduction sleeve 3 is mounted on the microphone body. A avoidance opening 301 is provided on the vibration reduction sleeve 3. The projection of the avoidance opening 301 along the axial direction of the sound receiving hole 102 at least partially overlaps with the projection of the sound pickup hole 201 of the microphone 2 along the axial direction of the sound receiving hole 102.

[0125] The vibration-damping sleeve 3 can isolate mechanical vibrations and physical shocks, preventing these interferences from being transmitted to the diaphragm of the microphone 2 through the shell, thereby significantly reducing low-frequency noise and friction noise and improving recording clarity.

[0126] In one embodiment, the projection of the avoidance opening 301 along the axial direction of the sound receiving hole 102 overlaps with the projection of the sound receiving hole 201 of the microphone 2 along the axial direction of the sound receiving hole 102 to ensure that the vibration reduction sleeve 3 does not block the sound receiving hole 201 of the microphone 2 in any way.

[0127] In one embodiment, the sound receiving hole 102 has a first side and a second side that are oppositely arranged along its axial direction. The microphone 2 is arranged on the second side of the sound receiving hole 102. The minimum distance between the first side and the sound pickup hole 201 of the microphone 2 is d2. min The average diameter of the first hole section 1022 is d4 mean The average diameter of the second hole section 1023 is d5 mean The average diameter of the third hole section 1024 is d6 mean , the diameter of the side of the avoidance opening 301 facing the sound receiving hole 102 is d7;

[0128] 0.5(d6 mean -2d5 mean +d4 mean )≥8-d2 min -0.5(d4 mean -d7).

[0129] When d2 min , d4 mean d5 mean , d6 mean When the size relationship with d7 meets the above range, it can ensure that the creepage distance meets the safety requirements.

[0130] In one embodiment, 0.5(d4 mean -d7)=0.34mm.

[0131] In one embodiment, a second annular protrusion 103 is provided on the housing 1 , and the sound receiving hole 102 is provided on the inner periphery of the second annular protrusion 103 .

[0132] By such arrangement, the second annular protrusion 103 can be used to increase the radial dimension of the sound receiving hole 102 , thereby ensuring that the creepage distance meets safety requirements when the material thickness of the housing 1 is relatively thin.

[0133] In one embodiment, the microphone mounting structure further includes an air outlet grille 4 provided on the housing 1 , and an avoidance groove 401 is provided at a position of the air outlet grille 4 corresponding to the second annular protrusion 103 .

[0134] The air outlet grille 4 is provided at the air outlet of the microphone mounting structure and can be used to control the direction of airflow, filter impurities, protect internal components, and optimize aerodynamic performance.

[0135] On this basis, the air outlet grille 4 is provided with an avoidance groove 401 at a position corresponding to the second annular protrusion 103. The avoidance groove 401 avoids the second annular protrusion 103, which can ensure that the appearance of the second annular protrusion 103 is not prominent, and helps to improve the overall aesthetics.

[0136] In one embodiment, the maximum dimension of the avoidance groove 401 along the axial direction of the sound receiving hole 102 is d10 max The air grille 4 further includes a connecting portion 402 on a side away from the avoidance slot 401. The minimum distance between the top surface of the grille teeth of the air grille 4 and the avoidance slot 401 is d 11 min ;

[0137] 1≤d 11 min :d 10 max ≤4.

[0138] When the ratio of the connecting portion 402 to the avoiding groove 401 is within the above range, it can ensure that the air outlet grille 4 fully avoids the second annular protrusion 103 without damaging the structural strength of the air outlet grille 4.

[0139] The grille tooth top surface refers to the surface on the grille teeth of the air outlet grille 4 that is farthest from the mounting base surface of the grille teeth, and the grille tooth top surface in this application is the original design surface of the grille tooth top that has not been chamfered.

[0140] In a preferred embodiment, 1≤d 11 min :d 10 max ≤3.

[0141] In one embodiment, an avoidance slope 1031 is provided on the outer periphery of the second annular protrusion 103 . The avoidance slope 1031 is inclined toward the central axis of the second annular protrusion 103 in a direction away from the microphone 2 .

[0142] By such arrangement, the distance between the second annular protrusion 103 and the air outlet grille 4 can be increased, thereby reducing the glue reduction depth of the air outlet grille 4 and avoiding affecting the structural strength of the air outlet grille 4.

[0143] In one embodiment, Figure 9 As shown, the included angle between the avoidance slope 1031 and the horizontal direction is θ, 0°≤θ≤47.5°.

[0144] In one embodiment, θ is 45°.

[0145] According to another aspect of an embodiment of the present invention, a household appliance is provided, including: a microphone mounting structure, a speaker, and a control module.

[0146] The microphone mounting structure is the microphone mounting structure provided by the first aspect of the present invention.

[0147] The speaker is communicatively connected to the microphone 2 of the microphone mounting structure.

[0148] During use of the household appliance of the embodiment of the present invention, the microphone 2 of the microphone mounting structure can be used to collect voice commands, and the control module can generate corresponding interactive commands through the voice commands collected by the microphone 2 and control the speaker to play the interactive commands.

[0149] Therefore, the household appliance of the embodiment of the present invention has a voice interaction function, and the user can interact with it by voice without going near the household appliance, and can obtain adjustment feedback information of the household appliance, which is easy to operate and provides a good user experience.

[0150] On this basis, the household appliance of the second aspect of the present invention includes or uses the microphone mounting structure of the first aspect of the present invention, and thus has its beneficial effect, namely: it can extend the creepage distance without increasing the axial dimension of the sound receiving hole 102, thereby avoiding the risk of creepage while not affecting the sound receiving effect of the microphone 2.

[0151] Furthermore, since the microphone mounting structure of the embodiment of the present invention allows the axial dimension of the sound receiving hole to not be set larger while meeting safety regulations, it can be applied to products with more compact structures, thereby improving the applicability of the microphone mounting structure and helping to improve the sound receiving effect of the microphone.

[0152] The control module may include a programmable logic control component (such as a PLC or CPU), a memory, and electronic components connected to the programmable logic control component, etc., which are well known to those skilled in the art and will not be described in detail here.

[0153] A communication connection refers to a communication link or session established between multiple devices, systems, or nodes for the transmission and exchange of data. It can be either a physical connection or a logical connection. Physical connections are preferably, but not limited to, hardware connections such as cables, optical fibers, and wireless signals. Logical connections are preferably, but not limited to, software-level connections such as TCP connections, virtual circuits (VPNs), and session layer protocols.

[0154] In the description of this application, it should be noted that a plurality means two or more.

[0155] The household appliances of the embodiments of the present invention can have built-in voice models, such as Doubao, Siri, Xiaoai, etc., and users can complete various command operations by simply talking, which is convenient and fast.

[0156] Although the embodiments of the present invention have been described with reference to the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations shall fall within the scope of protection claimed by the present invention.

Claims

1. A microphone mounting structure, characterized in that: include: A housing (1), wherein the housing (1) is provided with a mounting cavity (101) and a sound receiving hole (102), and the mounting cavity (101) is communicated with the sound receiving hole (102); A microphone (2) is arranged in the installation cavity (101), and the sound pickup hole (201) of the microphone (2) is arranged toward the sound receiving hole (102), and a first annular protrusion (1021) is provided on the inner periphery of the sound receiving hole (102), and the first annular protrusion (1021) is arranged along the circumference of the sound receiving hole (102), and along the axial direction of the sound receiving hole (102), the first annular protrusion (1021) is located in the middle position of the sound receiving hole (102).

2. The microphone mounting structure according to claim 1, wherein: The minimum distance between the first annular protrusion (1021) and the sound receiving hole (102) of the microphone (2) is d1 min ; 1.5mm≤d1 min and / or, The sound receiving hole (102) has a first side and a second side that are arranged opposite to each other, the microphone (2) is arranged on the second side of the sound receiving hole (102), and the minimum distance between the first side and the sound pickup hole (201) of the microphone (2) is d2 min The minimum dimension of the first annular protrusion (1021) in the axial direction of the sound receiving hole (102) is d3 min ,d1 min ≤d2 min -d3 min .

3. The microphone mounting structure according to claim 2, wherein: 1.5mm≤d1 min ≤5.3mm; and / or, 1.5mm≤d2 min ≤8mm; and / or, 0.7mm≤d3 min ≤5mm。 4. The microphone mounting structure according to any one of claims 1 to 3, characterized in that: The sound receiving hole (102) comprises a first hole segment (1022), a second hole segment (1023) and a third hole segment (1024) which are sequentially arranged in a direction away from the microphone (2), and the inner periphery of the first annular protrusion (1021) forms the second hole segment (1023).

5. The microphone mounting structure according to claim 4, characterized in that: The minimum diameter of the first hole section (1022) is d4 min The maximum diameter of the second hole segment (1023) is d5 max , d5 max ≤d4 min and / or, The maximum diameter of the first hole section (1022) is d4 max , the minimum diameter of the microphone (2) is d8 min , d4 max ≤d8 min .

6. The microphone mounting structure according to claim 4, characterized in that: The minimum diameter of the second hole section (1023) is d5 min The maximum diameter of the pickup hole (201) of the microphone (2) is d9 max ,d9 max ≤d5 min and / or, The maximum diameter of the second hole section (1023) is d5 max , the minimum diameter of the microphone (2) is d8 min , d5 max ≤d8 min .

7. The microphone mounting structure according to claim 4, wherein: The minimum diameter of the third hole section (1024) is d6 min ; The maximum diameter of the second hole section (1023) is d5 max , d5 max ≤d6 min and / or, d6 min ≤7mm 8. The microphone mounting structure according to claim 4, wherein: The microphone includes: Microphone body; A vibration-damping sleeve (3) is sleeved outside the microphone body, and a relief opening (301) is provided on the vibration-damping sleeve (3), wherein a projection of the relief opening (301) along the axial direction of the sound receiving hole (102) at least partially overlaps with a projection of the sound pickup hole (201) of the microphone (2) along the axial direction of the sound receiving hole (102).

9. The microphone mounting structure according to claim 8, characterized in that: The sound receiving hole (102) has a first side and a second side that are arranged opposite to each other, the microphone (2) is arranged on the second side of the sound receiving hole (102), and the minimum distance between the first side and the sound pickup hole (201) of the microphone (2) is d2 min The average diameter of the first hole segment (1022) is d4 mean The average diameter of the second hole segment (1023) is d5 mean The average diameter of the third hole segment (1024) is d6 mean , the diameter of the side of the avoidance opening (301) facing the sound receiving hole (102) is d7; 0.5(d6 mean -2d5 mean +d4 mean )≥8-d2 min -0.5(d4 mean -d7)。 10. The microphone mounting structure according to any one of claims 1 to 3, characterized in that: The housing (1) is provided with a second annular convex portion (103), and the sound receiving hole (102) is provided on the inner periphery of the second annular convex portion (103).

11. The microphone mounting structure according to claim 10, wherein: It also includes an air outlet grille (4) provided on the housing (1), and a avoidance groove (401) is provided at a position of the air outlet grille (4) corresponding to the second annular protrusion (103).

12. The microphone mounting structure according to claim 11, wherein: The maximum dimension of the avoidance groove (401) in the axial direction of the sound receiving hole (102) is d10 max The air outlet grille (4) further comprises a connecting portion (402) on a side away from the avoidance groove (401), and the minimum distance between the grille tooth top surface of the air outlet grille (4) and the avoidance groove (401) is d11 min ; 1≤d11 min :d10 max ≤4。 13. The microphone mounting structure according to claim 10, wherein: An avoidance slope (1031) is provided on the outer periphery of the second annular convex portion (103), and in a direction away from the microphone (2), the avoidance slope (1031) is inclined toward the central axis of the second annular convex portion (103).

14. A household appliance, characterized in that: include: The microphone mounting structure according to any one of claims 1 to 13; speaker; A control module, the speaker is communicatively connected to the control module, and the control module is communicatively connected to the microphone (2) of the microphone mounting structure.

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