Sound receiving structure for drum washing machine and drum washing machine

Abstract

A sound collection structure for a drum washing machine, comprising a sound inlet formed between a washing machine door assembly and a front panel of the cabinet and a guiding wall extending along the front panel of the cabinet; a decorative strip is arranged at the sound inlet, and blind holes are arranged on the decorative strip; a voice module and a microphone assembly are arranged in the washing machine door assembly. The washing machine door assembly includes an outer frame and an inner frame. A microphone through hole corresponding to the microphone assembly is formed on the inner frame, and the microphone through hole faces the guiding wall. A sealing strip is arranged between the guiding wall and the inner frame, and a sound pickup cavity is formed by the guiding wall, the sealing strip and the inner frame. The present invention can reduce the influence of factors such as noise, reverberation, human voice interference and echo in the real environment on speech recognition; the blind holes on the decorative strip arranged at the sound inlet can play a guiding role, guiding the user to output a voice signal towards the sound pickup cavity, ensuring the use effect of the voice module while avoiding contact between the voice module and washing water, and improving the working stability of the voice module.

Description

Technical Field

[0001] The present invention relates to the technical field of washing equipment, and particularly relates to a sound collection structure for a drum washing machine and a drum washing machine. Background Art

[0002] With the development of mobile Internet and artificial intelligence, voice-based interaction has become increasingly important and popular. Most of the voice interaction technologies rely on the network and the cloud, and multiple key steps such as backend speech recognition, natural language processing, and speech synthesis require a large amount of data and computing power, which can usually only be completed by the cloud.

[0003] However, the control of household appliances usually only requires some simple commands. A more suitable way is to solidify the command entries in the local storage after algorithm training and model matching. When performing voice control, it does not need to rely on the Internet and can directly call and process locally. Compared with the online processing method, the stability and efficiency of offline speech recognition are higher. If there is a problem with the network, the voice interaction function can still maintain the working state, and the delay in the recognition process is small, and the user experience is also better.

[0004] For a washing machine, usually the voice module is set in the box body and is adjacent to the control module. The sound pickup hole of the microphone is opened on the surface of the box body. With this structure, factors such as noise, reverberation, human voice interference, and echo in the real environment all have a greater impact, the signal-to-noise ratio of the recorded signal will be very low, and the algorithm processing difficulty will increase. Especially for offline speech recognition, due to the limited computing power of its control chip, the recognition effect will be further weakened. In addition, since the washing water will inevitably contact the surface of the box body during the use of the washing machine, the microphone set on the surface of the box body will malfunction, which will also reduce the stability of the device. Summary of the Invention

[0005] The present invention designs and provides a drum washing machine with a sound collection structure for a drum washing machine to reduce the influence of factors such as noise, reverberation, human voice interference, and echo in the real environment on speech recognition.

[0006] A sound collection structure for a drum washing machine includes a sound inlet formed between a washing machine door assembly and a front panel of the box body and a guiding wall extending along the front panel of the box body; a decorative strip is provided at the sound inlet, and blind holes are provided on the decorative strip; a voice module and a microphone assembly are provided in the washing machine door assembly, the washing machine door assembly includes an outer frame and an inner frame, a microphone through hole corresponding to the microphone assembly is opened on the inner frame, the microphone through hole faces the guiding wall, and a sealing strip is provided between the guiding wall and the inner frame, and the guiding wall, the sealing strip and the inner frame enclose a sound pickup cavity.

[0007] To enable the user to clearly see the blind holes and make the blind holes have a guiding function, multiple blind holes are included and evenly distributed on the decorative strip.

[0008] Furthermore, a speaker is also provided in the washing machine door assembly. A speaker through hole corresponding to the speaker is provided on the inner frame, and the speaker through hole is opened towards the guiding wall.

[0009] Furthermore, the microphone assembly is an annular microphone array or a linear microphone array.

[0010] Preferably, the microphone assembly is a linear microphone array, and symmetric microphone through holes corresponding to the linear microphone array are opened on the inner frame.

[0011] For the sound collection structure for a drum washing machine disclosed by the present invention, no microphone through hole is provided on the box body, which can avoid damage to the microphone through hole or microphone array due to water, ensure good stability of the sound pickup and voice playback of the voice module, and prevent control failure from affecting the user experience. On the other hand, the sound pickup cavity jointly formed by the inner frame, the sealing strip, the inner frame and the guiding wall is a semi-sealed chamber with only one sound inlet. The length of the sound pickup cavity is short, and the attenuation of the voice signal is small. Therefore, it has a good sound pickup effect, can avoid the influence caused by noise, reverberation, human voice interference, echo, etc. in the real environment, improve the signal-to-noise ratio of the recorded signal, and further improve the control effect. Thirdly, the blind holes on the decorative strip provided at the sound inlet can play a guiding role to guide the user to output voice signals towards the sound pickup cavity, further ensuring the use effect of the voice module.

[0012] At the same time, a drum washing machine is also disclosed, including a sound collection structure for a drum washing machine. The sound collection structure includes a sound inlet formed between the washing machine door assembly and the front panel of the box body and a guiding wall extending along the front panel of the box body; a decorative strip is provided at the sound inlet, and blind holes are provided on the decorative strip; a voice module and a microphone assembly are provided in the washing machine door assembly. The washing machine door assembly includes an outer frame and an inner frame. Microphone through holes corresponding to the microphone assembly are opened on the inner frame, the microphone through holes are opened towards the guiding wall, a sealing strip is provided between the guiding wall and the inner frame, and the guiding wall, the sealing strip and the inner frame enclose a sound pickup cavity.

[0013] Furthermore, a control module is provided on the box body, and a wire passes through a door hinge assembly fixedly provided on the box body to connect the voice module and the control module.

[0014] Further, the door hinge assembly includes a hinge body, and a first cavity for guiding and changing the extending direction of the wire is formed inside the hinge body; the first cavity communicates with a first through hole formed in the front panel of the cabinet; the wire connecting the voice module enters the first cavity, is guided through the first through hole and then passes through the front panel of the cabinet and is connected to the control module.

[0015] Further, a hinge reinforcing plate is arranged on the inner side of the front panel of the cabinet. A second through hole is formed in the hinge reinforcing plate. The wire passes through the front panel of the cabinet under the guidance of the first through hole and the second through hole and then enters a second wire groove formed in a wire board, extends and is connected to the control module; the wire board is fixedly connected to the front cross beam.

[0016] Further, the front panel of the cabinet is an integrally formed sheet metal front panel; a dispenser handle, a display module, a button module and a filter are embedded in the front panel of the cabinet.

[0017] The drum washing machine disclosed by the present invention can, on the one hand, reduce the influence of factors such as noise, reverberation, human voice interference and echo in the real environment on speech recognition; on the other hand, it can effectively avoid the contact between the voice module and washing water, improve the working stability of the voice module and extend its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] 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 the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0019] Figure 1 It is a schematic structural diagram of the first perspective of the washing machine door assembly in the drum washing machine disclosed by the present invention;

[0020] Figure 2 It is a schematic structural diagram of the second perspective of the washing machine door assembly in the drum washing machine disclosed by the present invention;

[0021] Figure 3 It is a cross-sectional view of the washing machine door assembly in the drum washing machine;

[0022] Figure 4 For Figure 3 The partial enlarged schematic diagram at A1 in

[0023] Figure 5 It is an exploded schematic diagram of the washing machine door assembly;

[0024] Figure 6Partial enlarged schematic diagram showing the specific structure of the first wire groove;

[0025] Figure 7 Partial enlarged schematic diagram showing the specific structure of the first wall section;

[0026] Figure 8 Schematic diagram of the structure of the hinge plate;

[0027] Figure 9 Partial enlarged schematic diagram of the hinge plate guiding cavity;

[0028] Figure 10 Schematic diagram of the structure of the washing machine door assembly in the open state disclosed by the present invention;

[0029] Figure 11 Exploded schematic diagram of the connection structure between the voice module and the control module;

[0030] Figures 12 to 14 Schematic diagram of the structure of the voice module, door hinge assembly and control module in the connected state of the drum washing machine disclosed by the present invention;

[0031] Figure 15 Schematic diagram of the structure of the hinge assembly;

[0032] Figure 16 Schematic diagram of the structure of the box body main body in the non-suspended state;

[0033] Figure 17 Schematic diagram of the structure of the box body main body in the suspended state. Detailed implementation manners

[0034] The embodiments of the present invention will be described in detail below. Examples of the detailed implementation manners are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions from beginning to end. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present invention, and should not be construed as limiting the present invention.

[0035] It should be understood that in the description of the present invention, the terms "center", "longitudinal", "transverse", "length", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., which characterize the position and structure, are all based on the directions or position relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and making it easy to understand, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as limiting the present invention.

[0036] In addition, the terms "first" and "second" are only used for description and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more. In the description of the present invention, "a plurality of" means two or more, unless otherwise specifically defined.

[0037] It should also be noted that in the description of the present invention, unless otherwise clearly specified and defined, the terms "mounted", "installed", and "connected" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and may also be the communication inside two elements. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] The following is combined with Figures 1 to 5Describe in detail the sound collection structure for a drum washing machine according to an embodiment of the present invention. Specifically, it includes a sound inlet 201 formed between the washing machine door assembly 102 and the front panel of the cabinet 101, and a guiding wall 202 formed on the front panel of the cabinet 101 and extending along the front panel 101 of the cabinet 101; a voice module 104 and a microphone assembly 111 are provided in the washing machine door assembly 102. The microphone assembly is preferably a microphone array 111 to optimize the sound pickup effect of the voice module 104. The microphone array 111 can be a linear array or a circular array. The linear array can distinguish sound source information within 180 degrees, and the circular array can distinguish sound source information within 360 degrees. For a drum washing machine, generally the probability of the sound source information coming from below is small. Therefore, a linear array is preferably provided. The washing machine door assembly 102 includes an outer frame 102-2 and an inner frame 102-3. A microphone through hole 111-1 corresponding to the microphone assembly 111 is provided on the inner frame 102-3. The microphone through hole 111-1 faces the guiding wall 202. If it is a linear array, the symmetric microphone through holes 111-1 corresponding to the linear microphone array are provided on the inner frame 102-3. A sealing strip 203 is provided between the guiding wall 202 and the inner frame 102-3. The guiding wall 202, the sealing strip 203 and the inner frame 102-3 enclose a sound pickup cavity 200. A decorative strip 300 is provided at the sound inlet 201, and blind holes 301 are provided on the decorative strip 300. Preferably, there are multiple blind holes 301 and they are evenly arranged on the decorative strip 300. In the sound collection structure for a drum washing machine disclosed by the present invention, no microphone through hole is provided on the cabinet, which can prevent damage to the microphone through hole or the microphone array due to water, ensure good stability of the sound pickup and voice playback of the voice module, and prevent control failure from affecting the user experience. On the other hand, the sound pickup cavity jointly enclosed by the inner frame, the sealing strip, the inner frame and the guiding wall is a semi-sealed chamber with only one sound inlet (as Figure 4 the dotted arrow in the figure shows the path of the voice signal entering the sound pickup cavity), the length of the sound pickup cavity is short, and the attenuation of the voice signal is small. Therefore, it has a good sound pickup effect, can avoid the influence caused by noise, reverberation, human voice interference, echo, etc. in the real environment, improve the signal-to-noise ratio of the recorded signal, and further improve the control effect; third, the blind holes on the decorative strip provided at the sound inlet can play a guiding role to guide the user to output the voice signal towards the sound pickup cavity, further ensuring the use effect of the voice module.

[0039] A speaker is also provided in the washing machine door assembly 102. A speaker through-hole 111-2 corresponding to the speaker is provided on the inner frame 102-3. The speaker through-hole 111-2 also preferably faces the guiding wall 202. The voice signal synthesized by the voice module 104 propagates from the sound pickup cavity 200 and the sound inlet 201 to the external space. The speaker through-hole and the microphone through-hole preferably include a partial through-hole and a partial blind hole to meet the needs of the appearance design and make the design of the visible surface for the user more beautiful.

[0040] The present invention also discloses a drum washing machine, which is provided with a sound receiving structure for the drum washing machine. The drum washing machine according to an embodiment of the present invention will be described in detail below with reference to the accompanying drawings, as Figure 1 、 Figure 2 、 Figure 11 and Figure 17 shown. Similar to the traditional drum washing machine, the drum washing machine disclosed in the present invention also includes a cabinet 101, a door hinge assembly 103 and a washing machine door assembly 102. Specifically, a pick-up opening is provided on the front side of the cabinet 101, and the pick-up opening is formed on the front panel 101-2 of the cabinet 101. A user picks up and places clothes through the pick-up opening. The door hinge assembly 103 is provided on one side of the front panel 101-2 of the cabinet 101. The door hinge assembly 103 includes a hinge body 103-1 and a hinge rigid shaft 103-2. The hinge body 103-1 is fixedly connected to the front panel of the cabinet 101, and a bushing 103-3 is provided on the hinge rigid shaft 103-2. The washing machine door assembly 102 includes an outer frame 102-2 and an inner frame 102-3. The outer frame 102-2 and the inner frame 102-3 are arranged around the edge of the observation window assembly 102-1 and jointly enclose an internal support cavity 105. A hinge plate 102-4 is provided in the support cavity 105. For the convenience of description, a surface of the inner frame 102-3 close to the cabinet 101 is defined as the first inner frame surface 102-31, and a surface away from the cabinet 101 is defined as the second inner frame surface 102-32. That is to say, taking the use orientation of the drum washing machine as a reference system, the surface of the inner frame 102-3 located on the inner side is the first inner frame surface 102-31, and the surface located on the outer side is the second inner frame surface 102-32. The washing machine door assembly 102 is connected to the door hinge assembly 103 through the hinge plate 102-4, so that the washing machine door assembly 102 is rotatably connected to the cabinet 101 to open or close the opening 130, facilitating the operation of the user. Preferably, a control module 110 for controlling corresponding components of the drum washing machine (such as washing machine operating components, buttons or display modules, etc.) is provided on the cabinet 101, which is convenient for realizing mechanical connection and electrical connection.

[0041] Completely different from the prior art, a sound receiving structure is further included in the drum washing machine disclosed in this embodiment. Refer to Figures 3 to 6, specifically, the sound collection structure includes a sound inlet 201 formed between the washing machine door assembly 102 and the front panel of the cabinet 101, and a guiding wall 202 extending along the front panel of the cabinet 101. The guiding wall 202 is bent towards the inner side of the cabinet 101 and has a certain curvature. A voice module 104 and a microphone assembly are provided in the washing machine door assembly 102. The voice module 104 and the control module 110 are connected by a wire 105. Specifically, the voice module 104 can implement various functions such as voice input, voice recognition, voice storage, voice synthesis, and voice playback. Voice recognition technology has been widely applied in the fields of smart home and household appliance technologies, which is familiar to those skilled in the art and is not the focus of protection of the present invention. Therefore, the chips used in the voice module 104 and the specific algorithms of voice recognition and voice synthesis are not further defined herein. The microphone assembly is preferably a microphone array 111 to optimize the sound pickup effect of the voice module 104. The microphone array 111 can be a linear array or a circular array. The linear array can distinguish sound source information within 180 degrees, and the circular array can distinguish sound source information within 360 degrees. For a drum washing machine, generally the probability of the sound source information coming from below is small. Therefore, a linear array is preferably provided. If it is a linear array, the microphone through holes 111-1 corresponding to the linear array are symmetrically opened on the inner frame 102-3 at the positions corresponding to the linear array. In order to facilitate the mechanical connection and electrical connection of the control module 110 while ensuring the sound pickup effect, in this embodiment, the voice module 104 is fixedly arranged on the surface 102-32 of the second inner frame. Preferably, the voice module 104 is preferably arranged at a position above the center line of the washing machine door assembly 102, which matches the control module arranged on the center line of the front panel of the cabinet 101, conforming to the design principle of ergonomics. Symmetric microphone through holes 111-1 corresponding to the linear array are arranged on the surface 102-31 of the first inner frame. The microphone through holes are opened towards the guiding wall 202. A sealing strip 203 is arranged between the guiding wall 202 and the inner frame 102-3. The guiding wall 202, the sealing strip 203, and the inner frame 102-3 together enclose a sound pickup cavity 200. In addition, a decorative strip 300 is also arranged at the sound inlet 201, and blind holes 301 are arranged on the decorative strip 300. Preferably, the blind holes 301 include a plurality of them and are evenly arranged on the decorative strip 300. In the drum washing machine disclosed in the present invention, the user cannot see the microphone through holes from the outside, which can prevent the microphone through holes or the microphone array from being damaged by water, ensuring good stability of the sound pickup and voice playback of the voice module and preventing control failure from affecting the user experience. On the other hand, the sound pickup cavity enclosed by the inner frame, the sealing strip, the inner frame, and the guiding wall is a semi-sealed chamber with only one sound inlet (such as Figure 4The dashed arrow shows the path of the voice signal entering the sound pickup cavity. The length of the sound pickup cavity is short, and the attenuation of the voice signal is small, so it has a good sound pickup effect, can avoid the influence caused by noise, reverberation, human voice interference, echo, etc. in the real environment, improve the signal-to-noise ratio of the recorded signal, and further improve the control effect. Third, the blind holes on the decorative strip provided at the sound inlet can play a guiding role, guiding the user to output the voice signal towards the sound pickup cavity, and further ensuring the use effect of the voice module.

[0042] A speaker is also provided in the washing machine door assembly 102. A speaker through hole 111-2 corresponding to the speaker is provided on the inner frame 102-3. The speaker through hole 111-2 also preferably faces the guiding wall 202. The voice signal synthesized by the voice module 104 propagates from the sound pickup cavity 200 and the sound inlet 201 to the external space. The speaker through hole and the microphone through hole preferably include part of the through hole and part of the blind hole to meet the needs of the appearance design and make the design of the visible surface of the user more beautiful.

[0043] As Figure 7 and Figure 8 As shown, in the drum washing machine with a hidden sound collection structure disclosed by the present invention, guiding walls 102-6 are symmetrically provided on the surface 102-32 of the second inner frame. The guiding walls 102-6 protrude from the surface 102-32 of the second inner frame and extend along the axial direction of the surface 102-32 of the second inner frame. The wire 105 connected to the voice module 104 is arranged between the guiding walls 102-6. The guiding walls 102-6 are provided on the surface 102-32 of the second inner frame. On the one hand, it can ensure the stable connection between the voice module 104 and the control module 110 and improve the use stability of the voice module 104. On the other hand, an image recognition module, a distance recognition module and other biometric modules may also be provided in the support cavity. The guiding walls 102-6 can avoid the wire between the voice module 104 and the control module 110 from interfering with other functional modules; at the same time, the guiding walls 102-6 can also increase the strength of the inner frame 102-3.

[0044] During the washing process of the drum washing machine, the washing machine door assembly 102 will open or close relative to the cabinet 101. Therefore, the wires will shift to a certain extent, and wear will occur after long-term use. To reduce the wear of the wires, in this embodiment, the guiding wall 102-6 is discontinuously arranged. The discontinuously arranged guiding wall 102-6 and the second inner frame surface 102-32 jointly enclose the first wire groove 102-33, thereby reducing the contact area between the wire and the first wire groove 102-33. The width of the first wire groove 102-33 is greater than the diameter of the wire, preferably 1.5 to 2 times the diameter of the wire. On the one hand, the first wire groove 102-33 composed of the discontinuously arranged guiding wall 102-6 can play a role in guiding the wire. On the other hand, the first wire groove 102-33 also provides a certain buffer space for the wire, making it not easy to wear after long-term use, and further ensuring the use safety of the voice module 104. At the same time, the discontinuously arranged guiding wall 102-6 can also save the space of the support cavity, facilitating the further expansion of the washing machine function module.

[0045] In this embodiment, the wire 105 connected to the voice module 104 passes through the front panel of the cabinet 101 through the hinge assembly and is electrically connected to the control module 110. To avoid blocking the hinge assembly, an opening 130 allowing the door hinge assembly 103 to pass through is provided on the inner frame 102-3. To guide the wire to change its direction and enter the hinge assembly, the guiding wall 102-6 is discontinuously arranged to sequentially form a first wall section 102-331, a second wall section 102-332, and a third wall section 102-333. The first wall section 102-331 is arc-shaped and is formed between the voice module 104 and the door hinge assembly 103, and is used to guide the wire 105 connected to the voice module 104 to extend along the second inner frame surface 102-32, avoiding the overlap between the wire and the observation window glass 102-1. The second wall section 102-332 is distributed substantially vertically in the direction from top to bottom and is formed on one side of the opening 130, and is used to avoid the interference between the wire and the hinge body. The third wall section 102-333 is formed below the opening 130 and is used to guide the wire to change its extension direction and enter the hinge body, and pass through the front panel of the cabinet 101 through the hinge body. Preferably, the lengths of the first wall section 102-331, the second wall section 102-332, and the third wall section 102-333 decrease. The length of the guiding wall 102-61 forming the first wall section 102-331 is less than the length of the guiding wall 102-62 forming the second wall section 102-332, and the length of the guiding wall 102-62 forming the second wall section 102-332 is less than the length of the guiding wall 102-63 forming the third wall section 102-333. This design is considered because the bending degree and the number of bends of the wire in the second wall section and the third wall section are significantly greater than those in the first wall section, and the increasing length can ensure that the wire does not fall off.

[0046] The wire 105 is arranged and extended along the first wire groove 102-33 until it reaches the position of the door hinge assembly 103. The hinge body 103-1 passes through the opening 130 and protrudes from the second inner frame surface 102-32. A first cavity 109 for guiding and changing the extension direction of the wire 105 is formed inside the hinge body 103-1. The first cavity 109 communicates with a first through hole 101-27 opened on the front panel 101-2 of the cabinet 101. The wire 105 enters the first cavity 109 in the hinge body 103-1 from bottom to top, is guided through the front panel 101-2 of the cabinet 101 via the first through hole 101-27, and then enters the second wire groove 107-1 from bottom to top and is connected to the control module 110 arranged in the cabinet 101.

[0047] In this way, the rotation of the washing machine door assembly 102 relative to the cabinet 101 will not affect the connection between the voice module 104 and the control module 110. The wire 105 between the two is completely hidden and in an invisible state, which will not affect the overall beauty of the washing machine or increase the number of components outside the washing machine cabinet 101. The working environment of the voice module 104 is stable. At the same time, the control module 110 can easily form good mechanical and electrical connections with other control components, display components, buttons, etc.

[0048] As shown in the figure, in order not to affect the operation of the door hinge assembly 103, preferably, the first cavity 109 is arranged on the lower side of the hinge body 103-1. The basic structure of the first cavity 109 matches that of the hinge body 103-1. The first cavity 109 is L-shaped. One end of the first cavity 109 close to the front panel is defined as the wire outlet end 109-2, and the end far from the front panel is defined as the wire inlet end 109-1. The wire outlet end 109-2 communicates with the first through hole 101-27 opened on the panel of the cabinet 101. The wire 105 longitudinally arranged and extended from the first wire groove 102-33 enters the first cavity 109 from the wire inlet end 109-1. The first cavity 109 is flush with the edge of the hinge body 103-1. The wire 105 extends horizontally in the first cavity 109 and turns 90 degrees and then extends out from the wire outlet end 109-2. To keep the wire 105 stable in the first cavity 109, a retaining piece 103-4 for preventing the wire 105 from falling off is also arranged at the first cavity 109. As Figure 2 shown, the retaining piece 103-4 is preferably designed to be L-shaped. Clamping portions 103-41 are respectively arranged at both ends of the retaining piece 103-4. The clamping portions 103-41 are perpendicular to the retaining piece body and extend into the first cavity 109 after assembly to prevent the wire 105 from falling off from the first cavity 109.

[0049] On the inner side of the front panel 101-2 of the box body 101, that is, on the side away from the door hinge assembly 103, a hinge reinforcement plate 106 is provided. The hinge reinforcement plate 106 is provided with a second through hole 106-1 corresponding to the position of the first through hole 101-27. The wire 105 passes through the front panel 101-2 of the box body 101 under the guidance of the first through hole 101-27 and the second through hole 106-1 and enters the second wire groove 107-1 formed on the wire plate 107 from bottom to top. The upper edge of the wire plate 107 is fixedly arranged on the front cross beam 108.

[0050] In this embodiment, the wire 105 for connecting the voice module 104 and the control module 110 needs to change the extension direction multiple times, and the bent parts are prone to breakage or fracture. The first cavity 109 and the baffle 103-4 play a certain protective role. Before entering the first cavity 109, the wire 105 will also form a bend from bottom to top. In order to better guide the wire 105, prevent the wire 105 from sliding, and protect it at the same time, as Figure 9 and Figure 10 shown, a guiding cavity 102-42 is formed on the hinge plate 102-4. The guiding cavity 102-42 is formed below the groove 102-41 of the hinge plate 102-4 corresponding to the mating door hinge assembly 103 and is communicated with the groove 102-41. The guiding cavity extends in the direction away from the second inner frame surface 102-32. After installation, the position of the guiding cavity corresponds to the third wall section. When the wire 105 changes direction from bottom to top, the guiding cavity can play a good guiding and protecting role to ensure the connection stability between the voice module 104 and the control module 110 during long-term use.

[0051] To achieve the effect of a relatively simple and beautiful external design, in this embodiment, as Figure 13As shown in the figure, the front panel 101-2 of the box body 101 is an integrally formed sheet metal front panel. Only the dispenser handle 101-22, the display module 101-21, the button module 101-23, and the filter 101-24 are embedded on the front panel 101-2 of the entire box body 101. Preferably, the control module 110 and the display module 101-21 are integrally designed. The display module 101-21 is on the front panel 101-2 of the box body 101, and the control module 110 is on the inner side. The display module can be an LCD display screen, an LED display screen, or other available display screens. For the convenience of assembly, a flange 101-25 extending in the same direction as the front panel 101-2 of the box body 101 is provided at the upper edge of the front panel 101-2 of the box body 101. In the non-assembled state, there is a certain angle between the flange 101-25 and the front panel 101-2 of the box body 101. Preferably, the angle is 5 degrees. The front cross beam 108 includes a cross beam body 108-1 and a connecting portion 108-2. The cross beam body 108-1 and the connecting portion 108-2 are perpendicular to each other, and the extending direction of the connecting portion 108-2 is opposite to the extending direction of the front panel 101-2 of the box body 101. During assembly, the left and right ends of the cross beam body 108-1 are first fixedly connected to the box body 101 body 101-1 by bolts, and then the connecting portion 108-2 is inserted into the area between the flange 101-25 and the front panel 101-2 of the box body 101, that is, the front panel 101-2 of the box body 101 is hung on the front cross beam 108 and fixed by bolts to complete the assembly. In this way, the integrally formed sheet metal front panel is hung on the front cross beam 108. After hanging, the flange and the front panel 101-2 of the box body 101 are basically parallel, making the hanging effect stable and reliable.

[0052] The drum washing machine disclosed by the present invention, while ensuring a simple appearance, improves the working stability of the voice module through the specially designed connection method between the voice module and the control module; after adding the connection structure, the control module can be conveniently mechanically and electrically connected to other functional components in the box body without affecting the normal opening and closing of the door body. The drum washing machine disclosed by the present invention has the advantages of high working stability, good practicability, and beautiful appearance.

[0053] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A sound collection structure for a drum washing machine, characterized in that: It includes: A washing machine door assembly, including an outer frame and an inner frame. The outer frame and the inner frame are arranged around the edge of the observation window assembly and jointly enclose a support cavity inside; One side surface of the inner frame close to the box body is the first inner frame surface, and the side surface away from the box body is the second inner frame surface; A sound inlet, which is formed between the washing machine door assembly and the front panel of the box body; A guiding wall, which extends along the front panel of the box body, bends towards the inside of the box body and has a curvature; A decorative strip, which is arranged at the sound inlet, and blind holes are arranged on the decorative strip; A microphone assembly is also arranged in the washing machine door assembly; a microphone through hole corresponding to the microphone assembly is opened on the first inner frame surface, the microphone through hole is opened towards the guiding wall, and a sealing strip is arranged between the guiding wall and the inner frame. The guiding wall, the sealing strip and the inner frame enclose a sound pickup cavity; the sound pickup cavity is a semi-sealed chamber with only one sound inlet; A voice module is arranged in the support cavity; the voice module is fixedly arranged on the second inner frame surface; guiding walls are symmetrically arranged on the second inner frame surface, the guiding walls protrude from the second inner frame surface and extend along the axial direction of the second inner frame surface. Wires connecting the control module arranged on the box body and the voice module are arranged between the guiding walls; the guiding walls and the second inner frame surface jointly enclose a first wire groove; the voice signal synthesized by the voice module is transmitted from the sound pickup cavity and the sound inlet to the external space.

2. The sound collection structure for a drum washing machine according to claim 1, characterized in that, The blind holes include a plurality of them and are evenly distributed on the decorative strip.

3. The sound collection structure for a drum washing machine according to claim 2, characterized in that, A speaker is also arranged in the washing machine door assembly, and a speaker through hole corresponding to the speaker is opened on the inner frame, and the speaker through hole is opened towards the guiding wall.

4. The sound collection structure for a drum washing machine according to claim 3, characterized in that, The microphone assembly is an annular microphone array or a linear microphone array.

5. The sound collection structure for a drum washing machine according to claim 4, characterized in that, The microphone assembly is a linear microphone array, and symmetric microphone through holes corresponding to the linear microphone array are opened on the inner frame.

6. A drum washing machine, characterized in that, It includes the sound collection structure for a drum washing machine according to any one of claims 1 to 5.

7. The drum washing machine according to claim 6, characterized in that, Wires pass through a door hinge assembly fixedly arranged on the box body to connect the voice module and the control module.

8. The drum washing machine according to claim 7, characterized in that, The door hinge assembly includes a hinge body, and a first cavity for guiding and changing the extending direction of the wire is formed inside the hinge body; the first cavity communicates with a first through hole opened on the front panel of the cabinet; the wire connecting the voice module enters the first cavity, is guided through the first through hole and then passes through the front panel of the cabinet and is connected to the control module.

9. The drum washing machine according to claim 8, wherein, a hinge reinforcement plate is arranged on the inner side of the front panel of the cabinet, a second through hole is opened on the hinge reinforcement plate, the wire passes through the front panel of the cabinet under the guidance of the first through hole and the second through hole and then enters a second wire groove formed on a wire plate, extends and is connected to the control module; the wire plate is fixedly connected with the front cross beam.

10. The drum washing machine according to claim 9, wherein, the front panel of the cabinet is an integrally formed sheet metal front panel; a dispenser handle, a display module, a key module and a filter are embedded on the front panel of the cabinet.

Images