Household appliances

Abstract

The present invention discloses a household appliance. The household appliance includes a housing and a sound receiving device. The housing includes a member to be struck. The sound receiving device is disposed inside the housing. The sound receiving device includes a vibration conduction component and a sound wave receiving component. The vibration conduction component is in close contact with the member to be struck and is configured to conduct the vibration generated by the strike and cause the air located on the transmission path of the strike sound to vibrate to generate a sound wave for the sound wave receiving component to receive. The above-mentioned household appliance can improve the "over-sensitive" and "insensitive" phenomena in the method of controlling the household appliance by striking the household appliance, and improve the accuracy of the household appliance control.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioner control, and particularly to a household appliance. Background Art

[0002] With the progress of life and technology, people pursue more convenient and fast ways to control household appliances. One way to control household appliances is to control them by knocking on the household appliances. For example, the household appliances can be turned on or off by knocking on them. However, this way of controlling household appliances by knocking is prone to the phenomena of "over-sensitivity" or "insensitivity" (in the case of "over-sensitivity", sounds generated by non-knocking on the household appliances may also trigger the household appliances to operate; in the case of "insensitivity", knocking on the household appliances may not trigger the household appliances to operate), resulting in low accuracy of household appliance control. Summary of the Invention

[0003] The main object of the present invention is to propose a household appliance, aiming to improve the "over-sensitivity" and "insensitivity" phenomena in the way of controlling household appliances by knocking, so as to improve the accuracy of household appliance control.

[0004] To achieve the above object, a household appliance proposed by the present invention includes:

[0005] A housing including a member to be knocked; and

[0006] A sound receiving device disposed inside the housing;

[0007] Wherein, the sound receiving device includes a vibration conduction component and a sound wave receiving component. The vibration conduction component is in close contact with the member to be knocked, and is used for conducting the vibration generated by knocking, and making the air on the knocking sound transmission path vibrate to generate a sound wave for the sound wave receiving component to receive.

[0008] In one embodiment, the vibration conduction component includes a vibration conduction plate. The vibration conduction plate has a receiving side and a conduction side on the knocking sound transmission path, and the receiving side is in close contact with the member to be knocked.

[0009] In one embodiment, the thickness of the vibration conduction plate is 0.5 - 5.0 mm.

[0010] In one embodiment, the area of the vibration conduction plate is 5 - 50 cm 2 .

[0011] In one embodiment, the vibration conduction component further includes a fixed arm. The fixed arm is disposed on the conduction side, and the vibration conduction component is connected to the sound wave receiving component through the fixed arm.

[0012] In one embodiment, the height of the fixed arm on the knocking sound transmission path is 1 - 5 cm.

[0013] In one embodiment, the fixed arm includes a connecting portion and a plugging portion. The connecting portion is disposed on the conduction side, and the plugging portion is disposed at one end of the connecting portion away from the conduction side and is arranged at an angle with the connecting portion. The plugging portion is used for plugging with the sound wave receiving component.

[0014] In one embodiment, the thickness of the connecting portion is 0.5 - 5.0 mm, and the thickness of the plugging portion is also 0.5 - 5.0 mm. The area of the orthographic projection of the plugging portion on the conduction side is less than 2 cm 2 .

[0015] In one embodiment, there are two fixed arms, namely a first fixed arm and a second fixed arm. The first fixed arm and the second fixed arm are respectively disposed at both ends of the vibration conduction plate in the length direction. The plugging portion of the first fixed arm includes a flat plate portion parallel to the vibration conduction plate, and the plugging portion of the second fixed arm includes a hook portion bent towards the vibration conduction plate.

[0016] In one embodiment, there are two fixed arms, namely a first fixed arm and a second fixed arm. The first fixed arm and the second fixed arm are respectively disposed at both ends of the vibration conduction plate in the length direction.

[0017] In one embodiment, the sound wave receiving component includes a sound wave receiving module, a circuit board and a mounting seat. The vibration conduction plate and the circuit board are both disposed on the mounting seat. The sound wave receiving module is disposed on the circuit board. The sound wave receiving module is used for receiving the sound waves on the knocking sound transmission path generated by the vibration conduction plate. Among them, the sound receiving device is disposed inside the housing through the mounting seat.

[0018] In one embodiment, the distance between the vibration conduction plate and the circuit board on the knocking sound transmission path is 1 - 5 cm.

[0019] In one embodiment, both the sound wave receiving module and the vibration conduction plate are located at one end of the circuit board in the length direction.

[0020] In one embodiment, the mounting seat and the knocked member enclose a hollow cavity. The sound wave receiving module, the circuit board and the vibration conduction component are all located in the hollow cavity. Among them, the mounting seat is a sound insulation seat.

[0021] In one embodiment, the household appliance is an air conditioner indoor unit.

[0022] In one embodiment, the knocked member is the front panel of the air conditioner indoor unit.

[0023] In the above-mentioned household appliance, a vibration conduction component is provided, and the vibration generated by knocking is conducted through the vibration conduction component. Through this solid conduction method of "conducting the vibration generated by knocking through the vibration conduction component", the sound loss coefficient of the sound generated by knocking on the household appliance is much smaller than that of the sound generated by non-knocking on the household appliance. Therefore, the sound wave located on the knocking sound transmission path generated by knocking on the household appliance can be effectively conducted to the sound wave receiving component, while it is very difficult for the sound wave of the sound generated by non-knocking on the household appliance to be conducted to the sound wave receiving component. Thus, the phenomenon of "oversensitivity" or "insensitivity" can be effectively improved, and further the accuracy of household appliance control can be improved. That is to say, in the above-mentioned household appliance, by planning the transmission path of the sound wave generated by knocking to the sound wave receiving component, the sound loss coefficients of the knocking sound transmission path and the non-knocking sound transmission path are different, so as to effectively improve the phenomena of "oversensitivity" and "insensitivity", and further improve the accuracy of household appliance control. Brief Description of the Drawings

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following-described drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0025] Figure 1 It is a schematic structural diagram of an air conditioner indoor unit according to an embodiment of the present invention;

[0026] Figure 2 It is Figure 1 a schematic structural diagram of another perspective of the shown air conditioner indoor unit;

[0027] Figure 3 It is Figure 1 a three-dimensional structural diagram of the shown sound receiving device;

[0028] Figure 4 It is Figure 3 a partial three-dimensional exploded view of the shown sound receiving device;

[0029] Figure 5 It is Figure 3 a three-dimensional structural diagram of another perspective of the shown sound receiving device;

[0030] Figure 6 It is Figure 5 a partial three-dimensional exploded view of the shown sound receiving device;

[0031] Figure 7 It is Figure 3Schematic perspective view of the vibration conduction assembly shown;

[0032] Figure 8 is Figure 7 Partial perspective exploded view of the vibration conduction assembly shown;

[0033] Figure 9 is Figure 7 Side view of the vibration conduction assembly shown;

[0034] Figure 10 is Figure 9 Cross-sectional schematic view along line A-A in

[0035] Figure 11 Cross-sectional schematic view of the vibration conduction assembly of another embodiment;

[0036] Figure 12 Cross-sectional schematic view of the vibration conduction assembly of another embodiment;

[0037] Figure 13 Cross-sectional schematic view of the vibration conduction assembly of another embodiment;

[0038] Figure 14 Cross-sectional schematic view of the vibration conduction assembly of another embodiment;

[0039] Figure 15 Cross-sectional schematic view of the vibration conduction assembly of another embodiment;

[0040] Figure 16 is Figure 15 Schematic perspective view of the sound insulation ring in

[0041] Figure 17 Cross-sectional schematic view of the vibration conduction assembly of another embodiment;

[0042] Figure 18 Cross-sectional schematic view of the vibration conduction assembly of another embodiment;

[0043] Figure 19 Cross-sectional schematic view of the vibration conduction assembly of another embodiment;

[0044] Figure 20 Cross-sectional schematic view of the vibration conduction assembly of another embodiment;

[0045] Figure 21 Schematic perspective view of the vibration conduction assembly of another embodiment;

[0046] Figure 22 is Figure 21 Partial perspective exploded view of the vibration conduction assembly shown;

[0047] Figure 23Schematic perspective view of a vibration conduction component of another embodiment;

[0048] Figure 24 Schematic perspective view of a sound wave receiving component of another embodiment;

[0049] Figure 25 is Figure 24 Schematic cross-sectional view of the sound wave receiving component shown.

[0050] Explanation of the reference numerals in the drawings:

[0051]

[0052]

[0053] The realization, functional features and advantages of the object of the present invention will be further described with reference to the embodiments and the accompanying drawings. Specific embodiments

[0054] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0055] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention, the directional indications are only used to explain the relative positional relationship and movement conditions between components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0056] In addition, if there are descriptions such as "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and / or" appearing throughout the text is that it includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, or solution B, or a solution that satisfies both A and B at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present invention.

[0057] The present invention provides a household appliance.

[0058] In an embodiment of the present invention, as Figure 1 and Figure 2 shown, the household appliance 10 includes a housing 12 and a sound receiving device 14. The sound receiving device 14 is disposed inside the housing 12. In this way, when a user knocks on the outer side of the housing 12, the vibration of the housing 12 (solid vibration) can cause the air around the sound receiving device 14 to vibrate and generate a sound wave including the user's knocking information. After the sound receiving device 14 receives the sound wave including the user's knocking information, the knocking information of the customer can be obtained. According to the knocking information of the customer, the household appliance 10 can be controlled to perform related operations. For example, when the household appliance 10 is in the shutdown state, when the user knocks on the outer side of the housing 12 once or twice, the household appliance 10 automatically powers on; and when the household appliance 10 is in the powered-on state, when the user knocks on the outer side of the housing 12 once or twice, the household appliance 10 automatically shuts down. Controlling the household appliance 10 to perform related operations according to the knocking information of the customer is very convenient for controlling the household appliance quickly and conveniently.

[0059] In this embodiment, when knocking on the housing 12, the part of the housing 12 corresponding to the sound receiving device 14 is knocked. In this way, it is more conducive to the sound receiving device 14 receiving the sound wave. It can be understood that in other embodiments, other parts of the housing 12 can also be knocked, as long as the sound wave including the user's knocking information can be received by the sound receiving device 14.

[0060] In this embodiment, the housing 12 includes a front panel 12a. The sound receiving device 14 is disposed inside the front panel 12a. In this way, it is more convenient for the user to knock on the housing 12 corresponding to the sound receiving device 14.

[0061] In this embodiment, as Figures 3 - 6 shown, the sound receiving device 14 includes a vibration conduction component 14a and a sound wave receiving component 14b. The vibration conduction component 14a is used to conduct the vibration generated by the knock and cause the air on the sound transmission path of the knock to vibrate to generate a sound wave for the sound wave receiving component 14b to receive. When knocking on the part of the housing 12 corresponding to the sound receiving device 14, the knocking direction is the same as the sound transmission path of the knock, and when knocking on other parts of the housing 12, the knocking direction is different from the sound transmission path of the knock.

[0062] In practical applications, abnormal sounds of the household appliance 10 itself, noisy sounds in the surrounding environment of the household appliance 10, etc., sounds generated by non-knocking on the household appliance may also trigger the household appliance to perform operations, resulting in the phenomenon of "over-sensitivity" easily occurring in the method of controlling the household appliance by knocking on the household appliance; and in the case of "insensitivity", knocking on the household appliance may also fail to trigger the household appliance to perform operations. That is, in practical applications, the method of controlling the household appliance by knocking on the household appliance is prone to the phenomenon of "over-sensitivity" or "insensitivity", resulting in low accuracy of household appliance control.

[0063] In this embodiment, a vibration conduction component 14a is provided, and the vibration generated by tapping is conducted through the vibration conduction component 14a. By means of this solid conduction method of "conducting the vibration generated by tapping through the vibration conduction component 14a", the sound loss coefficient of the sound generated by tapping the household appliance is much smaller than that of the sound generated by non-tapping the household appliance. Therefore, the sound wave located on the tapping sound transmission path generated by tapping the household appliance can be effectively conducted to the sound wave receiving component 14b, while it is very difficult for the sound wave of the sound generated by non-tapping the household appliance to be conducted to the sound wave receiving component 14b. Thus, the phenomenon of "oversensitivity" or "insensitivity" is effectively improved, and further the accuracy of household appliance control is improved. That is to say, in this embodiment, by planning the transmission path of the sound wave generated by tapping to the sound wave receiving component 14b, the sound loss coefficients of the tapping sound transmission path and the non-tapping sound transmission path are different, so as to effectively improve the phenomena of "oversensitivity" and "insensitivity", and further improve the accuracy of household appliance control.

[0064] In this embodiment, the side of the vibration conduction component 14a away from the sound wave receiving component 14b is used to be in close contact with the object to be tapped. The vibration conduction component 14a being in close contact with the object to be tapped is very convenient for the vibration conduction component 14a to receive the vibration generated by tapping.

[0065] In this embodiment, as Figures 7 - 10 shown, the vibration conduction component 14a includes a vibration conduction plate 200. The vibration conduction plate 200 is used to conduct the vibration generated by tapping and make the air on the tapping sound transmission path vibrate to generate a sound wave for the sound wave receiving component 14b to receive. The side of the vibration conduction plate 200 away from the sound wave receiving component 14b is used to be in close contact with the object to be tapped.

[0066] In this embodiment, the vibration conduction plate 200 has a receiving side 202 and a conduction side 204 located on the tapping sound transmission path. The receiving side 202 is used to be in close contact with the object to be tapped. In this embodiment, the object to be tapped is the housing 12 of the air conditioner indoor unit. It can be understood that in other embodiments, when the above vibration conduction component 14a is applied to household appliances 10 such as washing machines and ovens, the object to be tapped can be the housing of each household appliance 10.

[0067] In this embodiment, the thickness of the vibration conduction plate 200 is 0.5 - 5.0 mm. If the thickness of the vibration conduction plate 200 is too small, the vibration conduction plate 200 is prone to vibration, resulting in the phenomenon of "oversensitivity" in the way of controlling household appliances by tapping. If the thickness of the vibration conduction plate 200 is too large, the vibration conduction plate 200 is not prone to vibration, resulting in the phenomenon of "insensitivity" in the way of controlling household appliances by tapping. Considering the above factors comprehensively, the thickness of the vibration conduction plate 200 is set to 0.5 - 5.0 mm.

[0068] In this embodiment, the area of the vibration conduction plate 200 is 5 - 50 cm 2 . If the area of the vibration conduction plate 200 is too large, the vibration conduction assembly 14a will be too large. If the area of the vibration conduction plate 200 is too small, the vibration conduction effect of the vibration conduction plate 200 will be worse, and it is not easy to strike the part of the housing 12 corresponding to the vibration conduction plate 200. Considering the above factors, the area of the vibration conduction plate 200 is set to 5 - 50 cm 2 .

[0069] In this embodiment, the vibration conduction plate 200 is rectangular. Compared with circular and square shapes, the rectangular vibration conduction plate 200 is more conducive to conducting the vibration generated by knocking.

[0070] In this embodiment, the width of the vibration conduction plate 200 is 0.5 - 0.8 times the length of the vibration conduction plate 200. In this way, it is more conducive to the vibration conduction plate 200 to conduct the vibration generated by knocking.

[0071] In this embodiment, the material of the vibration conduction plate 200 is plastic or metal. In this way, it is more conducive to the vibration conduction plate 200 to conduct the vibration generated by knocking.

[0072] In this embodiment, the vibration conduction assembly 14a further includes a sound insulation ring 300. The sound insulation ring 300 is arranged on the conduction side 204 and is used to be inserted into the sound wave receiving assembly 14b in the knocking sound transmission path to isolate the sound waves in the circumferential direction of the knocking sound transmission path of the sound wave receiving assembly 14b. That is, when the sound wave receiving assembly 14b is inserted into the sound insulation ring 300, the sound waves in the non-knocking sound transmission path are isolated by the sound insulation ring 300 and cannot be received by the sound wave receiving assembly 14b. In this way, the phenomenon of "over-sensitive" or "insensitive" can be further improved, and thus the accuracy of household appliance control can be improved.

[0073] In this embodiment, the material of the sound insulation ring 300 is a plastic damping material or an elastic material (for example, rubber).

[0074] In this embodiment, the sound insulation ring 300 has a receiving cavity 302. The receiving cavity 302 is used to receive the sound wave receiving assembly 14b that is inserted into the sound insulation ring 300 in the knocking sound transmission path. One end of the vibration conduction assembly 14a and the sound wave receiving assembly 14b close to the vibration conduction plate 200 can cooperate to form an air cavity 304 isolated from the outside. The vibration conduction assembly 14a can make the air in the air cavity 304 vibrate to generate sound waves for the sound wave receiving assembly 14b to receive.

[0075] In some embodiments, such as Figures 7 - 10As shown, the vibration conduction component 14a further includes a boss 400, and the boss 400 is disposed on the conduction side 204. The sound insulation ring 300 is disposed on the boss 400. One end of the sound insulation ring 300, the boss 400, and the sound wave receiving component 14b close to the vibration conduction plate 200 can cooperate to form an air cavity 304. By providing the boss 400 to install the sound insulation ring 300, it is more convenient for the positioning and assembly of the sound insulation ring 300 and for forming the air cavity 304. Thus, when the housing 12 is struck, the vibration of the housing 12 is transmitted to the vibration conduction plate 200, and the vibration conduction plate 200 and the boss 400 vibrate accordingly.

[0076] In this embodiment, the boss 400 and the vibration conduction plate 200 are integrally formed. Thus, it is more convenient to manufacture the vibration conduction component 14a.

[0077] In this embodiment, the height of the boss 400 is less than or equal to 5 cm. Thus, it is possible to avoid excessive distance between the sound wave receiving component 14b and the vibration conduction plate 200, resulting in excessive sound wave loss.

[0078] In this embodiment, in the direction from the receiving side 202 to the conduction side 204, the outer diameter of the boss 400 gradually decreases. Thus, it is more conducive to the vibration of the boss 400.

[0079] In this embodiment, the boss 400 includes a plurality of stacked convex columns 410. In the direction from the receiving side 202 to the conduction side 204, the outer diameters of the plurality of convex columns 410 gradually decrease, and the plurality of convex columns 410 are coaxially arranged, so that a stepped surface is formed between adjacent layers of convex columns 410. Thus, it is not only convenient for the positioning and assembly of the sound insulation ring 300, but also conducive to the vibration of the boss 400.

[0080] In some embodiments, as Figure 11 shown, the sound insulation ring 300 is directly disposed on the conduction side 204. At this time, the boss 400 can be omitted. In this embodiment, the sound insulation ring 300 has a receiving cavity 302 and an air cavity 304 that communicate with each other. The receiving cavity 302 is used to receive the sound wave receiving component 14b inserted in the sound transmission path of the sound insulation ring 300. The air cavity 304 is closer to the vibration conduction plate 200 than the receiving cavity 302. Thus, when the housing 12 is struck, the vibration of the housing 12 is transmitted to the vibration conduction plate 200, and the vibration conduction plate 200 vibrates accordingly, causing the air in the air cavity 304 to vibrate to generate a sound wave for the sound wave receiving component 14b to receive.

[0081] In Figure 10 and Figures 12 - 14In the illustrated embodiment, the sound insulation ring 300 has a receiving cavity 302. The receiving cavity 302 is used to receive the sound wave receiving component 14b that is inserted into the sound insulation ring 300 in the knocking sound transmission path. One end of the boss 400 away from the vibration conduction plate 200 is provided with a groove 402, and the groove 402 communicates with the receiving cavity 302. The bottom of the groove 402 can be spaced from the sound wave receiving component 14b to form an air cavity 304. The air cavity 304 is closer to the vibration conduction plate 200 than the receiving cavity 302. Thus, when the housing 12 is knocked, the vibration of the housing 12 is transmitted to the vibration conduction plate 200, and the vibration conduction plate 200 and the boss 400 vibrate accordingly, causing the air in the air cavity 304 to vibrate to generate sound waves for the sound wave receiving component 14b to receive.

[0082] In Figure 10 and Figures 12 - 14 In the illustrated embodiment, the wall thickness of the groove 402 is 0.3 - 3.0 mm. If the wall thickness of the groove 402 is too small, the boss 400 is prone to vibration, resulting in the phenomenon of "over-sensitivity" in the way of controlling household appliances by knocking on the household appliances. If the wall thickness of the groove 402 is too large, the boss 400 is not prone to vibration, resulting in the phenomenon of "insensitivity" in the way of controlling household appliances by knocking on the household appliances. Considering the above factors, the wall thickness of the groove 402 is set to 0.3 - 3.0 mm.

[0083] In Figure 12 In the illustrated embodiment, the sound insulation ring 300 is provided at one end of the boss 400 away from the vibration conduction plate 200, and the receiving cavity 302 communicates with the groove 402. The sound wave receiving component 14b can extend into the groove 402 or not. Among them, the sound insulation ring 300 is provided at one end of the boss 400 away from the vibration conduction plate 200, which is conducive to the end of the sound insulation ring 300 away from the vibration conduction plate 200 being in close contact with the vibration conduction component 14a.

[0084] In Figure 13 In the illustrated embodiment, the sound insulation ring 300 includes a limiting portion 310 and a protrusion 320. The limiting portion 310 is provided at one end of the boss 400 away from the vibration conduction plate 200. The protrusion 320 is located in the groove 402 and is connected to the limiting portion 310. The receiving cavity 302 penetrates through the limiting portion 310 and the protrusion 320 in the knocking sound transmission path. Among them, the limiting portion 310 is provided at one end of the boss 400 away from the vibration conduction plate 200, which is conducive to the end of the sound insulation ring 300 away from the vibration conduction plate 200 being in close contact with the vibration conduction component 14a, while the protrusion 320 is located in the groove 402, which is very convenient for the positioning and assembly of the sound insulation ring 300.

[0085] In this embodiment, the protrusion 320 is in contact fit with the groove 402. It can be understood that in other embodiments, the protrusion 320 and the groove 402 can also be in clearance fit or interference fit.

[0086] In this embodiment, the protrusion 320 is spaced from the bottom of the groove 402. Thus, the groove 402 at least includes a partial air cavity 304. It can be understood that in other embodiments, the protrusion 320 may also be in contact with the bottom of the groove 402. In this case, it can be considered that the groove 402 does not include the air cavity 304.

[0087] In Figure 10 the illustrated embodiment, Figure 10 the illustrated embodiment is to add a sleeve 330 to the sound insulation ring 300 shown in Figure 13 The sleeve 330 is sleeved outside the boss 400 and is connected to the limiting portion 310. Among them, the protrusion 320 is located in the groove 402, and the sleeve 330 is sleeved outside the boss 400, which is very convenient for the positioning and assembly of the sound insulation ring 300.

[0088] In this embodiment, the sleeve 330 is in contact and cooperation with the boss 400. It can be understood that in other embodiments, the sleeve 330 and the boss 400 may also be in clearance fit or interference fit.

[0089] In this embodiment, one end of the sleeve 330 close to the vibration conduction plate 200 extends outside one end of the protrusion 320 close to the vibration conduction plate 200. Thus, the protrusion 320 and the sleeve 330 can achieve double isolation of the sound waves in the circumferential direction of the knocking sound transmission path of the vibration conduction assembly 14a, which can further improve the phenomenon of "over-sensitive" or "insensitive", and further improve the accuracy of household appliance control.

[0090] In Figure 14 the illustrated embodiment, the sound insulation ring 300 includes a limiting portion 310 and a sleeve 330. The limiting portion 310 is provided at one end of the boss 400 away from the vibration conduction plate 200. The sleeve 330 is sleeved outside the boss 400 and is connected to the limiting portion 310. The limiting portion 310 is provided with a plugging hole 310a communicating with the groove 402. The receiving cavity 302 includes the plugging hole 310a and the cavity of the sleeve 330. Among them, the limiting portion 310 is provided at one end of the boss 400 away from the vibration conduction plate 200, which is beneficial to the sound insulation ring 300 being in close contact with the vibration conduction assembly 14a at one end away from the vibration conduction plate 200, and the sleeve 330 is sleeved outside the boss 400, which is very convenient for the positioning and assembly of the sound insulation ring 300.

[0091] In this embodiment, when the receiving side 202 of the vibration conduction plate 200 is in close contact with the housing 12, one end of the sound insulation ring 300 away from the vibration conduction plate 200 is in close contact with the circuit board 700 of the vibration conduction assembly 14a. Thus, it can effectively prevent the sound waves on the non-knocking sound transmission path from entering between one end of the sound insulation ring 300 away from the vibration conduction plate 200 and the vibration conduction assembly 14a.

[0092] Such as Figure 15 andFigure 16 As shown, an extrusion groove 306 is formed on one side of the sound insulation ring 300 away from the vibration conduction plate 200, so as to accommodate the deformation amount of the sound insulation ring 300 when one end of the sound insulation ring 300 away from the vibration conduction plate 200 is in close contact with the vibration conduction assembly 14a (when the sound insulation ring 300 is extruded and deformed). In this way, it is more convenient for one end of the sound insulation ring 300 away from the vibration conduction plate 200 to be in close contact with the vibration conduction assembly 14a. In this embodiment, the extrusion groove 306 is annular.

[0093] In Figures 17 - 19 the embodiment shown, the sound insulation ring 300 and the boss 400 are inserted into each other in the knocking sound transmission path. In this way, it is very convenient for the positioning and assembly of the sound insulation ring 300. It should be noted that Figure 10 , Figure 13 and Figure 14 the embodiments shown also belong to the embodiments in which the sound insulation ring 300 and the boss 400 are inserted into each other in the knocking sound transmission path. Since they have been introduced in detail before, they will not be repeated here.

[0094] In Figures 17 - 19 the embodiment shown, the boss 400 is inserted into the sound insulation ring 300.

[0095] In Figure 17 the embodiment shown, one end of the sound insulation ring 300 away from the vibration conduction plate 200 is located outside one end of the boss 400 away from the vibration conduction plate 200. The sound insulation ring 300 has a receiving cavity 302 and an air cavity 304 that communicate with each other. The boss 400, the air cavity 304 and the receiving cavity 302 are arranged in the direction away from the vibration conduction plate 200. The receiving cavity 302 is used to receive the sound wave receiving component 14b that is inserted into the sound insulation ring 300 in the knocking sound transmission path.

[0096] In Figure 18 the embodiment shown, one end of the sound insulation ring 300 away from the vibration conduction plate 200 is located outside one end of the boss 400 away from the vibration conduction plate 200. A groove 402 is formed at one end of the boss 400 away from the vibration conduction plate 200. The sound insulation ring 300 has a receiving cavity 302, and the receiving cavity 302 communicates with the groove 402. The receiving cavity 302 is used to receive the sound wave receiving component 14a that is inserted into the sound insulation ring 300 in the knocking sound transmission path. The bottom of the groove 402 can be spaced from the sound wave receiving component 14a to form an air cavity 304. The air cavity 304 is closer to the vibration conduction plate 200 than the receiving cavity 302. Among them, the sound wave receiving component 14a can extend into the groove 402 or not extend into the groove 402.

[0097] In Figure 19In the illustrated embodiment, one end of the sound insulation ring 300 away from the vibration conduction plate 200 is flush with one end of the boss 400 away from the vibration conduction plate 200. A groove 402 is formed at one end of the boss 400 away from the vibration conduction plate 200. Both the accommodation cavity 302 and the air cavity 304 are located in the groove 402. The accommodation cavity 302 is used to accommodate the sound wave receiving component 14b inserted into the sound insulation ring 300 in the knocking sound transmission path, and the air cavity 304 is closer to the vibration conduction plate 200 than the accommodation cavity 302.

[0098] In Figure 20 the illustrated embodiment, the sound insulation ring 300 is inserted into the boss 400. In Figure 20 the illustrated embodiment, a groove 402 is formed at one end of the boss 400 away from the vibration conduction plate 200. The sound insulation ring 300 is inserted into the groove 402. The sound insulation ring 300 has an accommodation cavity 302. The accommodation cavity 302 is used to accommodate the sound wave receiving component 14b inserted into the sound insulation ring 300 in the knocking sound transmission path. The bottom of the groove 402 can be spaced from the sound wave receiving component 14b to form an air cavity 304. The air cavity 304 is closer to the vibration conduction plate 200 than the accommodation cavity 302.

[0099] In this embodiment, as Figures 3 - 9 shown, the vibration conduction component 14a further includes a fixed arm 500. The fixed arm 500 is provided on the conduction side 204. The vibration conduction component 14a is connected to the mounting seat 800 of the sound wave receiving component 14b through the fixed arm 500. In this embodiment, the fixed arm 500 is integrally formed with the vibration conduction plate 200. In this way, it is more conducive to manufacturing the vibration conduction component 14a.

[0100] In this embodiment, the height of the fixed arm 500 in the knocking sound transmission path is 1-5 cm. In this way, after the vibration conduction component 14a and the sound wave receiving component 14b are assembled, an air resonance cavity is formed between the vibration conduction plate 200 and the circuit board 700 of the sound wave receiving component 14b, amplifying the sound transmitted by the vibration of the vibration conduction plate 200 and improving the sensitivity of the sound receiving device 14 to the sound waves generated by knocking.

[0101] In this embodiment, the fixed arm 500 includes a connecting portion 510 and a plugging portion 520. The connecting portion 510 is provided on the conduction side 204. The plugging portion 520 is provided at one end of the connecting portion 510 away from the conduction side 204 and is arranged at an angle with the connecting portion 510. The plugging portion 520 is used for plugging with the mounting seat 800. In this way, it is conducive to the connection between the fixed arm 500 and the mounting seat 800.

[0102] In this embodiment, the thickness of the connecting portion 510 is 0.5-5.0 mm, the thickness of the plugging portion 520 is also 0.5-5.0 mm, and the area of the positive projection of the plugging portion 520 on the conduction side 204 is less than 2 cm 2In this way, the vibration of the vibration conduction plate 200 can be prevented from being adversely affected by the fixed arm 500. In this embodiment, the thickness of the connecting portion 510, the thickness of the plugging portion 520, and the thickness of the vibration conduction plate 200 are the same.

[0103] In this embodiment, there are two fixed arms 500, namely a first fixed arm 500a and a second fixed arm 500b. The first fixed arm 500a and the second fixed arm 500b are respectively arranged at two ends of the vibration conduction plate 200 in the length direction. In this way, it is more conducive to the vibration conduction plate 200 to conduct vibration.

[0104] In this embodiment, the sound insulation ring 300 is located between the first fixed arm 500a and the second fixed arm 500b. In this way, it is more conducive to the sound receiving device 14 to receive sound waves.

[0105] In this embodiment, the plugging portion 520 includes a flat plate portion 522a parallel to the vibration conduction plate 200 or a hook portion 522b bent towards the vibration conduction plate 200. Among them, the plugging portion 520 of the first fixed arm 500a includes the flat plate portion 522a, and the plugging portion 520 of the second fixed arm 500b includes the hook portion 522b, that is, the structures of the first fixed arm 500a and the second fixed arm 500b are different. In this way, it is more conducive to the plugging of the fixed arm 500 and the mounting seat 800. It can be understood that in other embodiments, the structures of the first fixed arm 500a and the second fixed arm 500b can also be the same. At this time, the plugging portions 520 of the first fixed arm 500a and the second fixed arm 500b can both include the flat plate portion 522a or both include the hook portion 522b.

[0106] In some embodiments, as Figure 21 and Figure 22 shown, the above-mentioned plugging portion 520 of the fixed arm 500 can be omitted. At this time, the end of the fixed arm 500 can be used as the plugging portion.

[0107] In this embodiment, as Figures 2 - 6 shown, the sound wave receiving assembly 14b includes a sound wave receiving module 600, a circuit board 700, and a mounting seat 800. The circuit board 700 is arranged on the mounting seat 800. The sound wave receiving module 600 is arranged on the circuit board 700. The vibration conduction assembly 14a is arranged on the mounting seat 800 through the fixed arm 500 and is located on the side of the circuit board 700 away from the mounting seat 800. One end of the sound insulation ring 300 away from the vibration conduction plate 200 is in close contact with the circuit board 700. The sound wave receiving module 600 is plugged into the sound insulation ring 300.

[0108] The acoustic wave receiving module 600 can convert acoustic signals (acoustic wave signals) into electrical signals. In this embodiment, the acoustic sensitivity of the acoustic wave receiving module 600 can be adjusted, so that the acoustic sensitivity of the acoustic wave receiving module 600 can be adjusted according to the needs of the actual application scenario. In this embodiment, the acoustic wave receiving module 600 is a microphone. In this embodiment, the acoustic wave receiving module 600 is in interference fit with the sound insulation ring 300. It can be understood that in other embodiments, the acoustic wave receiving module 600 and the sound insulation ring 300 can also be in contact fit or clearance fit.

[0109] The circuit board 700 can receive the electrical signals converted by the acoustic wave receiving module 600 and output the electrical signals converted by the acoustic wave receiving module 600 to the control board of the household appliance 10, so as to control the household appliance to perform corresponding operations.

[0110] In this embodiment, the distance between the vibration conduction plate 200 and the circuit board 700 is 1-5 cm. In this way, an air resonance cavity can be formed between the vibration conduction plate 200 and the circuit board 700 to amplify the sound transmitted by the vibration of the vibration conduction plate 200 and improve the sensitivity of the sound receiving device 14 to the acoustic waves generated by knocking.

[0111] In this embodiment, both the acoustic wave receiving module 600 and the vibration conduction assembly 14a are located at one end of the circuit board 700 in the length direction. In this way, the overall structure of the sound receiving device 14 can be made more reasonable, which is conducive to obtaining a sound receiving device 14 with a smaller volume.

[0112] In this embodiment, the circuit board 700 has the same length direction as the mounting base 800, and the length direction of the vibration conduction plate 200 is substantially perpendicular to the length direction of the circuit board 700. In this way, the overall structure of the sound receiving device 14 can be made more reasonable, which is conducive to obtaining a sound receiving device 14 with a smaller volume.

[0113] In this embodiment, the mounting base 800 is used to connect with the housing 12 of the household appliance 10. In this embodiment, when the mounting base 800 is connected to the housing 12, the receiving side 202 of the vibration conduction plate 200 is in close contact with the inner wall of the housing 12.

[0114] It can be understood that when the shape of the receiving side 202 matches the shape of the inner wall of the housing 12, the receiving side 202 can be in better close contact with the inner wall of the housing 12. The shape of the receiving side 202 can be designed according to the shape of the inner wall of the housing 12. In Figures 2 - 6 the illustrated embodiment, the vibration conduction plate 200 is rectangular, and the receiving side 202 is planar. At this time, the vibration conduction plate 200 can be in close contact with the housing 12 having a planar inner wall. In Figure 23In the illustrated embodiment, the vibration conduction plate 200 is arc-shaped, and the receiving side 202 is arc-shaped. At this time, the vibration conduction plate 200 can be closely attached to the housing 12 having an arc-shaped inner wall.

[0115] In this embodiment, the mounting seat 800 can cooperate with the housing 12 to form a hollow cavity, and the sound wave receiving module 600, the circuit board 700, and the vibration conduction assembly 14a are all located in the hollow cavity. In this embodiment, the mounting seat 800 is semi-frame-shaped. In this way, it is very convenient for the mounting seat 800 to cooperate with the housing 12 to form a hollow cavity.

[0116] In this embodiment, the mounting seat 800 is detachably connected to the housing 12. In this way, it is convenient for disassembly and assembly. In this embodiment, screw holes and / or slots are provided at the edge of the mounting seat 800, and the mounting seat 800 is connected to the housing 12 by screws provided on the housing 12, or the mounting seat 800 is snap-connected to the buckle on the housing 12 through its own slot.

[0117] In this embodiment, the mounting seat 800 is a sound insulation seat. In this way, the sound loss coefficient of the non-tapping sound transmission path can be greatly improved, and the occurrence of the "oversensitive" phenomenon can be effectively improved. In this embodiment, the material of the mounting seat 800 is a metal material, a damping material, or a composite material, where the composite material includes at least two of a metal material, a damping material, and a plastic.

[0118] In this embodiment, the wall thickness of the mounting seat 800 is 1-10 mm. If the wall thickness of the mounting seat 800 is too small, the sound insulation effect is limited, and the strength of the mounting seat 800 is limited. If the wall thickness of the mounting seat 800 is too large, the volume of the sound receiving device 14 will be too large. Considering the above factors, the wall thickness of the mounting seat 800 is set to 1-10 mm.

[0119] In Figures 1 - 23 the illustrated embodiment, the sound insulation ring 300 belongs to the vibration conduction assembly 14a. In Figure 24 and Figure 25 the illustrated embodiment, the sound insulation ring 300 belongs to the sound wave receiving assembly 14b.

[0120] The present invention also provides an air conditioner, which includes the above-mentioned air conditioner indoor unit 10.

[0121] The above are only the optional embodiments of the present invention, and do not limit the patent scope of the present invention. Any equivalent structural transformation made under the inventive concept of the present invention, or direct / indirect application in other related technical fields, is included in the patent protection scope of the present invention.

Claims

1. A household appliance, characterized in that, Comprising: A housing including a member to be struck; And A sound receiving device disposed inside the housing; Wherein, the sound receiving device includes a vibration conduction component and a sound wave receiving component, the vibration conduction component is in close contact with the member to be struck, and is used for conducting the vibration generated by the strike, and causing the air on the strike sound transmission path to vibrate to generate a sound wave for the sound wave receiving component to receive; The vibration conduction component includes a vibration conduction plate, the vibration conduction plate has a receiving side and a conduction side on the strike sound transmission path; the vibration conduction component further includes a sound insulation ring, the sound insulation ring is disposed on the conduction side; the sound wave receiving component includes a sound wave receiving module and a circuit board, the sound wave receiving module is disposed on the circuit board, one end of the sound insulation ring away from the vibration conduction plate is in close contact with the circuit board; the sound wave receiving module is inserted into the sound insulation ring; an air resonance cavity is formed between the vibration conduction plate and the circuit board of the sound wave receiving component; The thickness of the vibration conduction plate is 0.5 - 5.0 mm; the area of the vibration conduction plate is 5 - 50 cm 2 .

2. The household appliance according to claim 1, wherein The receiving side is in close contact with the member to be struck.

3. The household appliance according to claim 2, wherein, The vibration conduction component further includes a fixing arm, the fixing arm is disposed on the conduction side, and the vibration conduction component is connected to the sound wave receiving component through the fixing arm.

4. The household appliance according to claim 3, characterized in that, The height of the fixing arm on the strike sound transmission path is 1 - 5 cm.

5. The household appliance according to claim 3, characterized in that, The fixing arm includes a connecting portion and a plugging portion, the connecting portion is disposed on the conduction side, the plugging portion is disposed at one end of the connecting portion away from the conduction side and is arranged at an angle with the connecting portion, and the plugging portion is used for plugging with the sound wave receiving component.

6. The household appliance according to claim 5, characterized in that, The thickness of the connecting part is 0.5 - 5.0 mm, and the thickness of the plugging part is also 0.5 - 5.0 mm. The area of the orthographic projection of the plugging part on the conduction side is less than 2 cm 2 .

7. The household appliance according to claim 5, characterized in that, There are two fixing arms, namely a first fixing arm and a second fixing arm, the first fixing arm and the second fixing arm are respectively disposed at two ends of the length direction of the vibration conduction plate, the plugging portion of the first fixing arm includes a flat plate portion parallel to the vibration conduction plate, and the plugging portion of the second fixing arm includes a hook portion bent towards the vibration conduction plate.

8. The household appliance according to claim 3, wherein, There are two fixing arms, namely a first fixing arm and a second fixing arm, the first fixing arm and the second fixing arm are respectively disposed at two ends of the length direction of the vibration conduction plate.

9. The household appliance according to claim 2, characterized in that, The sound wave receiving component includes a mounting seat, the vibration conduction plate and the circuit board are both disposed on the mounting seat, the sound wave receiving module is used for receiving the sound wave on the strike sound transmission path generated by the vibration conduction plate, wherein, the sound receiving device is disposed inside the housing through the mounting seat.

10. The household appliance according to claim 9, characterized in that, The distance between the vibration conduction plate and the circuit board on the strike sound transmission path is 1 - 5 cm.

11. The household appliance according to claim 9, characterized in that, Both the sound wave receiving module and the vibration conduction plate are located at one end of the length direction of the circuit board.

12. The household appliance according to claim 9, characterized in that, A hollow cavity is formed by enclosing the mounting seat and the member to be struck, and the sound wave receiving module, the circuit board and the vibration conduction component are all located in the hollow cavity, wherein, the mounting seat is a sound insulation seat.

13. The household appliance according to any one of claims 1-12, characterized in that, The household appliance is an indoor unit of an air conditioner.

14. The household appliance according to claim 13, characterized in that, The member to be struck is the front panel of the indoor unit of the air conditioner.

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