Indoor unit

Abstract

This application relates to the field of air conditioning technology, and more particularly to an indoor unit, including an outer casing, a panel, a base, a cross-flow fan, and a motor. The outer casing has an air outlet, the base is located inside the outer casing, both ends of the cross-flow fan are mounted on the base, and the motor is located at one end of the base along its length. The outer casing and the panel are integrally formed. The indoor unit also includes a voice box and a voice board, the voice box being located inside the outer casing. The voice board is located inside the voice box and is used to collect external sounds. A flexible frame is provided inside the voice box, one end of which abuts against the inner wall of the voice box, and the other end of which abuts against one side of the voice board. The flexible frame supports the voice board to fit snugly against the outer casing. This application, by placing the voice board inside the voice box and using a flexible frame to support it, ensures that it fits snugly against the inner wall of the outer casing after installation, solving the problem that traditional integrated outer casing wall-mounted air conditioners cannot install a voice board due to structural limitations, or have poor voice quality after installation.

Description

Technical Field

[0001] This application relates to the field of air conditioning technology, and more particularly to an indoor unit. Background Technology

[0002] Wall-mounted air conditioners, as common indoor cooling and heating devices, are mainly divided into two structural types: integrated casing and panel plus casing. Integrated casing means the panel and casing are molded and connected as a single piece, and are widely used in homes, offices, and other places. With the development of smart home appliance technology, voice control has become an important feature to enhance the user experience. Currently, wall-mounted air conditioners with voice functionality all adopt a panel plus casing structure. This is because the voice board needs to be fixed to the panel by adhesive to ensure voice reception and feedback. Simultaneously, the voice board needs to establish a circuit connection with the display board to obtain power, and the installation positions of both must be compatible.

[0003] In existing technologies, during the assembly of wall-mounted air conditioners with voice functionality, both the voice board and the display board need to be glued and fixed to the panel surface. The display board also needs to be connected to the electrical box mounted on the base via connecting cables to achieve signal and circuit connections. The assembly process typically involves first connecting the display board to the electrical box, and then assembling the panel with the voice board and display board to the main body of the unit. This installation method is currently the mainstream solution for implementing voice functionality in wall-mounted air conditioners in the industry, and there is currently no design specifically for integrating voice functionality into integrated wall-mounted air conditioners.

[0004] Because the voice control panel relies on adhesive to be fixed to the panel to ensure voice effect, the integrated wall-mounted air conditioner cannot adopt this installation method due to structural limitations. As a result, the integrated wall-mounted air conditioner has long been unable to be equipped with voice function, which has limited the product's functional expansion and market coverage, and makes it difficult to meet users' needs for voice control of wall-mounted air conditioners with different structures. Utility Model Content

[0005] This application provides an indoor unit designed to solve the problem of installing the voice panel in an integrated wall-mounted air conditioner.

[0006] To achieve the above objectives, this application adopts the following technical solution: Firstly, an indoor unit is provided, comprising: The outer cover is provided with an air outlet; The panel is integrally formed with the outer cover; A base, wherein the base is disposed inside the outer cover; A cross-flow fan, with both ends of the cross-flow fan mounted on the base; An electric motor is disposed at one end of the base along its length, and the motor is used to drive the cross-flow fan to rotate. A voice box, wherein the voice box is disposed inside the outer casing; A voice board, which is disposed inside the voice box, is used to collect external sounds; A flexible frame, one end of which abuts against the bottom wall of the voice box, and the other end of which abuts against the top of the voice board, is used to support the voice board to adhere to the panel.

[0007] In the above embodiments, this application solves the problem that traditional integrated enclosure wall-mounted units cannot install voice boards due to structural limitations, or have poor voice quality after installation, by placing the voice board inside the voice box and supporting it with an elastic frame, allowing it to fit tightly against the inner wall of the panel after installation. Specifically, the elastic frame has a certain height in its natural state, and undergoes elastic deformation under the pressure of the enclosure during installation, continuously applying pre-tightening force to the voice board, ensuring it remains tightly against the inner wall of the panel, avoiding voice signal attenuation due to gaps, and guaranteeing the sensitivity and accuracy of voice recognition and interaction.

[0008] In some embodiments of this application, a small hole is provided on the outer cover near the voice box, and the small hole is used to transmit sound.

[0009] In the above embodiments, this application provides a small hole in the area corresponding to the voice box on the outer casing, offering a direct physical channel for external sound waves to enter and for internal voice feedback to occur. This small hole structurally achieves efficient sound wave transmission, ensuring the voice board can clearly capture user commands and effectively propagate the device's voice prompts into the indoor space, thus guaranteeing complete voice interaction functionality. Furthermore, the small hole design requires only minor structural modifications, maximizing the integrity and aesthetics of the outer casing, effectively preventing large-area entry of dust or liquids, and improving the product's reliability and usability.

[0010] In some embodiments of this application, in its uncompressed free state, the dimension of the elastic frame perpendicular to the voice board is greater than the distance between the bottom wall of the voice box and the inner wall of the panel, so that the voice board tends to conform to the panel under the pre-tightening force of the elastic frame.

[0011] In the above embodiments, this application sets the height of the elastic frame in its uncompressed natural state to be greater than the final installation distance between the inner wall of the voice box and the inner wall of the outer casing. This ensures that the elastic frame is always in a compressed state when assembly is complete, thereby generating a continuous and stable preload force on the voice board. This preload force ensures that the voice board has a constant tendency to fit tightly against the inner wall of the panel. This preload force can automatically compensate for manufacturing tolerances and assembly errors of components, eliminate any gaps that may exist between the voice board and the panel, avoid sound wave attenuation and signal distortion caused by gaps, and provide a stable acoustic channel for voice acquisition. The continuous clamping force prevents the voice board from detaching from the outer casing or producing abnormal noise when the equipment vibrates during operation such as fan rotation or motor operation, improving the stability of the structure and the durability of the product.

[0012] In some embodiments of this application, the elastic frame includes elastic legs, and a plurality of the elastic legs are disposed on the side of the voice board away from the panel, and the distance between adjacent elastic legs gradually increases from one end closer to the voice board to the other end.

[0013] In the above embodiments, this application arranges multiple elastic support legs on the side of the voice board, with their spacing gradually increasing from one end closer to the voice board to the other, thus optimizing the distribution of support force and improving structural stability. The multiple support legs work together to provide uniform elastic support force at multiple locations on the voice board, preventing tilting or warping that might occur due to single-point force, ensuring its overall flatness and fit against the outer casing. The gradually expanding layout makes the support legs relatively densely distributed on the side closer to the voice board, enhancing the connection strength and initial support stiffness; while the free ends of the support legs are relatively sparsely distributed, reducing the risk of mutual interference during compression and ensuring that each support leg can undergo independent elastic deformation, thereby providing a more stable preload. The distribution of multiple elastic support legs constitutes an approximately trapezoidal stable support structure, which can better resist lateral displacement when compressed by the panel, providing good guidance for the movement of the voice board, ensuring smooth assembly and accurate final positioning.

[0014] In some embodiments of this application, a support plate is also included, which is disposed at one end of the elastic leg near the voice board, and the support plate is used to transmit the supporting force from the elastic leg to the voice board; One side of the support plate abuts against the side wall of the voice box to provide lateral restraint for the support plate.

[0015] In the above embodiment, the multiple elastic legs of the elastic frame provide distributed elastic support. If applied directly to the voice board, the difference in force distribution between the legs can easily lead to localized stress concentration on the voice board, causing tilting and affecting the bonding accuracy with the panel. The support plate, acting as an intermediate transmission structure between the elastic legs and the voice board, can transform the dispersed point-like support force of the multiple elastic legs into a uniform planar force that is transmitted to the voice board. This optimized force transmission avoids excessive or uneven localized stress on the voice board, ensuring that the voice board is flatly and evenly bonded to the inner wall of the panel. This eliminates voice signal attenuation caused by bonding gaps or localized detachment, guaranteeing the stability of voice acquisition and feedback.

[0016] When the integrated enclosure is in operation, the rotation of the cross-flow fan and the operation of the motor generate continuous vibration. Without lateral restraint, the elastic support legs and the voice board are prone to lateral displacement, causing the voice board to deviate from the preset fitting area, or even collide with the internal structure of the voice box, producing abnormal noise. By abutting one side of the support plate against the side wall of the voice box, a rigid lateral limit is formed, which can restrict the lateral displacement of the support plate, elastic support legs, and voice board. Even under long-term vibration or minor assembly errors, it can ensure that the voice board is always aligned with the sound transmission area of ​​the panel, such as the small hole area, avoiding the impact of positional displacement on the voice interaction effect and reducing the risk of component collision damage.

[0017] In some embodiments of this application, the voice board has openings at both ends along its length, and the support plate has positioning protrusions disposed within the openings to position the voice board.

[0018] In the above embodiment, the positioning protrusions and the openings at both ends of the voice board form a mechanical limiting fit, which can restrict the displacement of the voice board in the left and right and front and back, ensuring that the voice board is fixed in the preset installation position. This positioning allows the acoustic components such as the microphone on the voice board to be aligned with the sound transmission hole area on the panel, avoiding obstruction of the sound wave transmission path due to the voice board offset, ensuring the clarity of voice signal acquisition and the accuracy of feedback. The installation positioning structure solves the problem of poor voice effect of integrated cover wall-mounted units. The positioning fit also ensures that the contact surface between the voice board and the panel remains flat, avoiding gaps caused by local warping and improving acoustic transmission efficiency.

[0019] In some embodiments of this application, the distance between two adjacent elastic legs away from the end of the support plate is greater than the length of the support plate in the same direction, so as to improve the support stability of the support frame.

[0020] In the above embodiment, the distance between the free ends of adjacent elastic legs away from the support plate is greater than the length of the support plate end, giving the elastic frame an overall trapezoidal support shape that is wider at the bottom and narrower at the top, with the support plate end at the top and the free ends at the bottom. Compared to support structures with equal spacing or narrow bottom width, the trapezoidal structure has a wider support base and a lower center of gravity, providing stronger resistance to tipping and lateral displacement. When the indoor unit is running, the rotation of the cross-flow fan, the vibration generated by the motor, and the possible misalignment during assembly all exert lateral forces on the elastic frame. The trapezoidal structure with a wide base can disperse lateral forces through a larger support span, preventing the elastic legs from tilting as a whole or the voice panel from deviating from the bonding surface, ensuring that the voice panel remains flat and bonded to the panel.

[0021] In some embodiments of this application, the end of the elastic support leg that contacts the bottom wall of the voice box is provided with an arc-shaped abutment surface, which is used to disperse contact stress.

[0022] In the above embodiments, this application selects elastic plastic or metal spring sheets as the leg material to ensure stable and sufficient elastic recovery force during long-term, repeated compression deformation. Elastic plastic is easy to process and has a low cost, while metal spring sheets can provide better fatigue strength and long-term durability, providing options for different product needs. An arc-shaped abutment surface is provided at the end of the leg that contacts the bottom wall of the voice box, transforming the original possible point contact or small area contact into a smooth line contact or surface contact. This structure can disperse and reduce the local compressive stress at the contact point, preventing plastic deformation, indentation, or even cracking of the inner wall of the voice box or the leg itself due to stress concentration.

[0023] In some embodiments of this application, it also includes: An electrical box, which is disposed on the base; The display box is integrated with the voice box and is fixedly mounted on the electrical box; The display panel is disposed inside the display box and is electrically connected to the voice board.

[0024] In the above embodiments, this application fixes the voice box and display box to the electrical box, allowing the circuit connections between the voice board and display board to be completed before the outer casing is installed. This avoids the traditional process of wiring before installing the panel in a narrow space due to limited wire length, simplifying the assembly process, improving production efficiency, and reducing the risk of wiring errors. The integrated connection of the display box and voice box, together with the electrical box, forms a stable integrated modular unit. The modular design reduces the number of independent components, simplifies the internal wiring harness layout, makes the structure more compact and orderly, and enhances the overall structural stability and vibration resistance.

[0025] In some embodiments of this application, a limiting buckle is provided inside the display box, and the limiting buckle is used to restrict the position of the display panel.

[0026] In the above embodiments, the limiting buckle of this application physically constrains the installation position and orientation of the display panel, ensuring that the display panel can be quickly and accurately installed into the predetermined position. This avoids problems such as uneven light transmission area display and poor electrical connector insertion or interference with the housing caused by positional deviations, reducing assembly difficulty and error rate. Through the locking action of the buckle, the display panel is fixed in the display box, preventing it from loosening, shifting, or falling off due to vibration during transportation, installation, or equipment operation. This ensures the reliability of the electrical connection between the display panel and the voice board, and improves the mechanical stability and durability of the entire product.

[0027] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of the overall structure of the indoor unit of this application; Figure 2 This is the main view of the indoor unit of this application; Figure 3 yes Figure 2 Partial sectional view; Figure 4 yes Figure 3 Enlarged view at point B in the middle; Figure 5 This is a partial sectional view of the indoor unit of this application from another angle; Figure 6 This is a cross-sectional view of the indoor unit of this application; Figure 7 yes Figure 6 Enlarged view at point C; Figure 8 This is a structural diagram of the integrated connection between the voice box and the display box in this application; Figure 9 This is a partial cross-sectional view of the voice box in this application; Figure 10 This is a top view of the voice box and display box of this application; Figure 11 This is a schematic diagram of the assembly structure of the flexible frame and the voice board in this application; Figure 12 This is a schematic diagram of the flexible frame structure of this application.

[0030] In the above figures: the X-axis is defined as the front-to-back direction (vertical), and its arrow points to the front; the Y-axis is defined as the left-to-right direction (horizontal), and its arrow points to the left; the Z-axis is defined as the up-down direction (vertical), and its arrow points to the up.

[0031] In the above figures: 1. Outer cover; 11. Panel; 2. Base; 3. Cross-flow fan; 4. Voice box; 5. Voice panel; 51. Opening; 6. Flexible frame; 61. Flexible support legs; 62. Support plate; 63. Positioning protrusion; 7. Electrical box; 8. Display box; 81. Limiting buckle; 9. Display panel. Detailed Implementation

[0032] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between components; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0033] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0034] In this application, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0035] Additionally, if the meaning of "and / or" in the text is that it includes three parallel options, taking "A and / or B" as an example, it includes option A, option B, or an option that satisfies both A and B.

[0036] The present application will now be described in detail through exemplary embodiments. However, it should be understood that, without further description, elements, structures, and features in one embodiment may be advantageously incorporated into other embodiments.

[0037] It should be noted that in the air conditioning industry, wall-mounted air conditioners, as common indoor cooling and heating devices, are mainly divided into two structural types: integrated casing and panel plus casing. Integrated casing means the panel and casing are molded and connected as a single piece, and are widely used in homes, offices, and other places. With the development of smart home appliance technology, voice control has become an important feature to enhance the user experience. Currently, wall-mounted air conditioners with voice functionality all adopt a panel plus casing structure. This is because the voice board needs to be fixed to the panel by adhesive to ensure voice reception and feedback. Simultaneously, the voice board needs to establish a circuit connection with the display board to obtain power, and the installation positions of both must be compatible.

[0038] In existing technologies, during the assembly of wall-mounted air conditioners with voice functionality, both the voice board and the display board need to be glued and fixed to the panel surface. The display board also needs to be connected to the electrical box mounted on the base via connecting cables to achieve signal and circuit connections. The assembly process typically involves first connecting the display board to the electrical box, and then assembling the panel with the voice board and display board to the main body of the unit. This installation method is currently the mainstream solution for implementing voice functionality in wall-mounted air conditioners in the industry, and there is currently no design specifically for integrating voice functionality into integrated wall-mounted air conditioners.

[0039] Because the voice control panel relies on adhesive to be fixed to the panel to ensure voice quality, integrated wall-mounted air conditioners cannot use this installation method due to structural limitations. This has prevented integrated wall-mounted air conditioners from incorporating voice functionality for a long time, restricting product feature expansion and market coverage, and making it difficult to meet users' needs for voice control of wall-mounted air conditioners with different structures.

[0040] Based on this, this application proposes a voice board installation device for an integrated wall-mounted air conditioner with an outer casing. By integrating the voice box and display box into one unit and fixing them together on the electrical box, and configuring an elastic support structure below the voice board, the elastic support deforms due to the squeezing action during the installation of the outer casing, causing the voice board to fit tightly against the panel. This achieves convenient installation and stable voice interaction, solving the problems that integrated wall-mounted air conditioners cannot be equipped with voice functions and the limited wiring space and inconvenient operation in traditional panel adhesive installation.

[0041] In the following, embodiments of this application will be described in detail with reference to the accompanying drawings.

[0042] As attached Figures 1 to 12 As shown, in the first aspect of this application, an indoor unit is provided, including an outer cover 1 and a panel 11, a base 2, a cross-flow fan 3 and a motor; the outer cover 1 is provided with an air outlet, the base 2 is disposed inside the outer cover 1, the two ends of the cross-flow fan 3 are mounted on the base 2, and the motor is disposed at one end of the base 2 in the length direction, and the motor is used to drive the cross-flow fan 3 to rotate. By rationally arranging the assembly relationship of the outer casing 1, base 2, and cross-flow fan 3, the indoor unit's cooling and heating functions are realized. The outer casing 1 forms a closed installation cavity and guides the air circulation after heat exchange through the air outlet. The base 2 provides a stable supporting foundation for the cross-flow fan 3, motor, and subsequent voice box 4 and display box 8. The motor drives the cross-flow fan 3 to complete the introduction, heat exchange, and exhaust of indoor air. Furthermore, through the integrated structural design of the outer casing 1 and the compact layout of each component, the assembly limitations of the traditional panel plus outer casing 1 structure are avoided. Space is reserved for the integrated installation of the voice box 4 and display box 8, ensuring that the installation positions of the heat exchange components and the voice and display components do not interfere with each other. This provides reliable structural support for the flexible fitting installation and convenient wiring of the subsequent voice board 5, ensuring the coordinated realization of the overall functions of the equipment.

[0043] In some embodiments, the indoor unit includes a voice box 4 and a voice board 5. The voice box 4 is disposed inside the outer casing 1; the voice board 5 is disposed inside the voice box 4 and is used to collect external sounds. The voice box 4 provides an independent and stable installation space for the voice board 5, isolating it from airflow interference generated by the operation of the cross-flow fan 3, motor vibration, and electromagnetic interference from internal components, thus preventing the voice board 5 from experiencing sound collection distortion due to external environmental influences.

[0044] In some embodiments, an elastic frame 6 is provided inside the voice box 4. One end of the elastic frame 6 abuts against the bottom wall of the voice box 4, and the other end abuts against the voice plate 5. The elastic frame 6 is used to support the voice plate 5 to adhere to the panel 11. This application solves the problem that traditional integrated outer cover 1 wall-mounted units cannot install the voice plate 5 due to structural limitations, or have poor voice effect after installation, by setting the voice plate 5 inside the voice box 4 and using the elastic frame 6 to support the voice plate 5, so that it can be tightly attached to the inner wall of the panel 11 after installation. Specifically, the elastic frame 6 has a certain height in its natural state. During installation, it undergoes elastic deformation under the pressure of the outer cover 1, continuously applying a pre-tightening force to the voice plate 5, so that it always adheres tightly to the inner wall of the outer cover 1, avoiding voice signal attenuation due to gaps, and ensuring the sensitivity and accuracy of voice recognition and interaction.

[0045] In some embodiments, a small hole is provided on the outer cover 1 near the voice box 4 for sound transmission. This application provides a direct physical channel for external sound waves to enter and for internal voice feedback by providing a small hole on the outer cover 1 corresponding to the voice box 4. This small hole structurally achieves efficient sound wave transmission, ensuring that the voice board 5 can clearly collect user commands and effectively propagate the device's voice prompts into the indoor space, thereby guaranteeing complete voice interaction functionality. Furthermore, the small hole design requires only minor structural modifications, maximizing the integrity and aesthetics of the panel 11, preventing large-area entry of dust or liquids, and improving the product's reliability and usability.

[0046] In some embodiments, the height of the elastic frame 6 in its uncompressed natural state is greater than the distance between the bottom wall of the voice box 4 and the inner wall of the outer cover 1. Specifically, after the voice plate 5 is tightly attached to the panel 11, the height of the elastic frame 6 in its uncompressed natural state is greater than the distance between the inner wall of the voice box 4 and the voice plate 5, causing the voice plate 5 to tend to fit against the outer cover 1 under the pre-tightening force of the elastic frame 6. This application sets the height of the elastic frame 6 in its natural state to be greater than the final installation distance between the inner wall of the voice box 4 and the inner wall of the panel 11, so that the elastic frame 6 is always in a compressed state when assembly is complete, thereby generating a continuous and stable pre-tightening force on the voice plate 5. This pre-tightening force ensures that the voice plate 5 has a constant tendency to fit tightly against the inner wall of the panel 11. This pre-tightening force can automatically compensate for component manufacturing tolerances and assembly errors, eliminate possible gaps between the voice plate 5 and the panel 11, avoid sound wave attenuation and signal distortion caused by gaps, and provide a stable acoustic channel for voice acquisition. The continuous clamping force prevents the voice board 5 from detaching from the panel 11 or producing abnormal noises when the equipment vibrates, such as when the fan is running or the motor is working, thus improving the stability of the structure and the durability of the product.

[0047] In some embodiments, the elastic frame 6 includes elastic legs 61, with multiple elastic legs 61 disposed on the side of the voice panel 5, and the distance between adjacent elastic legs 61 gradually increasing from one end closer to the voice panel 5 to the other. This application arranges multiple elastic legs on the side of the voice panel 5 away from the outer cover 1, and distributes them in a gradually expanding pattern from one end closer to the voice panel 5 to the other, thus optimizing the distribution of support force and improving structural stability. The multiple legs work together to provide uniform elastic support force at multiple locations on the voice panel 5, preventing tilting or warping that may occur due to single-point force on the voice panel 5, ensuring that it fits flatly against the panel 11. The gradually expanding layout makes the legs relatively densely distributed on the side closer to the voice panel 5, enhancing the connection strength and initial support stiffness with the voice panel 5; while the free ends of the legs are relatively sparsely distributed, reducing the risk of mutual interference during compression and ensuring that each leg can undergo independent elastic deformation, thereby providing a more stable preload. The multiple flexible support legs form an approximately trapezoidal stable support structure, which can better resist lateral displacement when squeezed by the panel 11, providing good guidance for the movement of the voice board 5, ensuring a smooth assembly process and accurate final position.

[0048] In some embodiments, a support plate 62 is provided at one end of the elastic leg 61 near the voice board 5. The support plate 62 is used to improve the stability of the elastic frame. This application provides support plates 62 between adjacent elastic legs, enhancing the overall structural rigidity and stability of the elastic frame 6. The support plates 62 establish a lateral connection between the elastic legs 61, forming an integral support frame. This prevents individual legs from lateral bending, torsional deformation, or misalignment when subjected to compressive forces, ensuring that the direction of the elastic support force is always perpendicular to the voice board 5, maintaining the stability and uniformity of the voice board 5's fit. The support plates 62 suppress abnormal deformation and vibration of the legs, reducing stress concentration points and making the force distribution of the elastic frame 6 more reasonable. This reduces the risk of plastic deformation or fracture of the elastic material due to repeated compression and rebound, improving the durability and long-term reliability of the elastic frame 6 and even the entire voice board 5 installation device. The connecting ribs make multiple elastic legs 61 a single component, less prone to damage or deformation due to collisions during production and assembly, improving the structural strength of the parts and facilitating operation and installation.

[0049] Through the above scheme, the multiple elastic legs 61 of the elastic frame 6 provide distributed elastic support force. If this force were applied directly to the voice board 5, the difference in force distribution between the legs could easily lead to localized stress concentration on the voice board 5, causing tilting and affecting the bonding accuracy with the panel 11. The support plate 62, acting as an intermediate transmission structure between the elastic legs 61 and the voice board 5, can transform the distributed point support force of the multiple elastic legs 61 into a uniform planar force that is transmitted to the voice board 5. This optimized force transmission avoids excessive or uneven localized stress on the voice board 5, ensuring that the voice board 5 is flatly and evenly bonded to the inner wall of the panel 11. This eliminates voice signal attenuation caused by bonding gaps or localized detachment, ensuring the stability of voice acquisition and feedback.

[0050] In some embodiments, one side of the support plate 62 abuts against the side wall of the voice box 4 to provide lateral restraint for the support plate 62. When the integrated outer casing 1 is in operation, the rotation of the cross-flow fan 3 and the operation of the motor will generate continuous vibration. Without lateral restraint, the elastic support leg 61 and the voice plate 5 are prone to lateral displacement, causing the voice plate 5 to deviate from the preset fitting area, or even collide with the internal structure of the voice box 4 and produce abnormal noise. By abutting one side of the support plate 62 against the side wall of the voice box 4, a rigid lateral restraint is formed, which can limit the lateral displacement of the support plate 62, the elastic support leg 61 and the voice plate 5. Even under long-term vibration of the equipment or minor assembly errors, it can be ensured that the voice plate 5 is always aligned with the sound transmission area of ​​the panel 11, such as the small hole area, avoiding the impact of positional displacement on the voice interaction effect and reducing the risk of component collision damage.

[0051] In some embodiments, the voice board 5 has openings 51 at both ends along its length, and the support plate 62 has positioning protrusions 63 disposed within the openings 51 to position the voice board 5. The positioning protrusions 63 and the openings 51 at both ends of the voice board 5 form a mechanical limiting fit, which can limit the displacement of the voice board 5 in the left and right and front and back, ensuring that the voice board 5 is fixed in the preset installation position. This positioning allows the acoustic components such as the microphone on the voice board 5 to be aligned with the sound transmission hole area on the panel 11, avoiding obstruction of the sound wave transmission path due to the offset of the voice board 5, ensuring the clarity of the voice signal acquisition and the accuracy of the feedback. The installation positioning structure solves the problem of poor voice effect of the integrated outer cover 1. The positioning fit also ensures that the contact surface between the voice board 5 and the panel 11 remains flat, avoiding gaps caused by local warping, and improving acoustic transmission efficiency.

[0052] In some embodiments, such as Figure 11 As shown, the distance H between the ends of two adjacent elastic legs 61 furthest from the support plate 62 is greater than the length h of the support plate 62 in the same direction, thus improving the support stability of the support frame. The distance between the free ends of adjacent elastic legs 61 furthest from the support plate 62 is greater than the length of the end of the support plate 62, making the elastic frame 6 present a trapezoidal support shape that is wider at the bottom and narrower at the top, with the end of the support plate 62 at the top and the free end at the bottom. Compared with support structures with equal spacing or narrow bottom width, the trapezoidal structure has a wider support base and a lower center of gravity, providing stronger resistance to tipping and lateral displacement. When the indoor unit is running, the rotation of the cross-flow fan 3, the vibration generated by the motor, and the possible tilting during assembly will all exert lateral forces on the elastic frame 6. The trapezoidal structure with a wide base can disperse the lateral forces through a larger support span, preventing the elastic legs 61 from tilting as a whole or the voice panel 5 from deviating from the contact surface, ensuring that the voice panel 5 remains flat and in contact with the panel 11.

[0053] In some embodiments, the elastic support leg 61 is made of elastic plastic or metal spring. This application selects elastic plastic or metal spring as the support leg material to ensure that it provides stable and sufficient elastic recovery force during long-term, repeated compression deformation. Elastic plastic is easy to process and has a low cost, while metal spring can provide better fatigue strength and long-term durability, providing a choice for different product needs.

[0054] In some embodiments, the end of the elastic support leg 61 that contacts the inner wall of the voice box 4 is provided with an arc-shaped abutment surface to disperse contact stress. Providing an arc-shaped abutment surface at the end of the support leg that contacts the inner wall of the voice box 4 transforms what might have been a point contact or a small-area contact into a smooth line contact or surface contact. This structure can disperse and reduce local compressive stress at the contact point, preventing plastic deformation, indentation, or even cracking of the inner wall of the voice box 4 or the elastic support leg 61 itself due to stress concentration.

[0055] In some embodiments of this application, the indoor unit further includes an electrical box 7, a display box 8, and a display panel 9. The electrical box 7 is mounted on a base, the display box 8 is integrated with the voice box 4 and fixedly mounted on the electrical box 7, and the display panel 9 is mounted on the display box 8 and electrically connected to the voice panel 5. This application fixes the voice box 4 and the display box 8 to the electrical box 7, allowing the circuit connections between the voice panel 5 and the display panel 9 to be completed before the outer casing 1 is installed. This avoids the traditional process of wiring before installing the panel in a narrow space due to limited wire length, simplifying the assembly process, improving production efficiency, and reducing the risk of wiring errors. The integrated connection of the display box 8 and the voice box 4, together with the electrical box 7, forms a stable integrated modular unit. The modular design reduces the number of independent components, simplifies the internal wiring layout, makes the structure more compact and orderly, and enhances the overall structural stability and vibration resistance.

[0056] In some embodiments, the area on the outer cover 1 near the display box 8 is a panel 11, which is made of a light-transmitting material and is used to display information. In this application, this light-transmitting area constitutes a hidden display window, allowing information installed on the internal display panel 9 to be clearly transmitted to the user through the outer cover 1, thus completing the necessary human-computer interaction functions and ensuring the usability of the product.

[0057] In some embodiments, a limiting buckle 81 is provided inside the display box 8 to limit the position of the display panel 9. The limiting buckle 81 physically constrains the installation position and orientation of the display panel 9, ensuring that the display panel 9 can be quickly and accurately installed in the predetermined position. This avoids problems such as uneven light transmission area display and poor electrical connector insertion or interference with the housing caused by positional deviations, reducing assembly difficulty and error rate. Through the locking action of the buckle, the display panel 9 is fixed inside the display box 8, preventing it from loosening, shifting, or falling off due to vibration during transportation, installation, or equipment operation. This ensures the reliability of the electrical connection between the display panel 9 and the voice board 5, and improves the mechanical stability and durability of the entire product.

[0058] For ease of explanation, the above description has been provided in conjunction with specific embodiments. However, the above exemplary discussion is not intended to be exhaustive or to limit the embodiments to the specific forms disclosed above. Various modifications and variations can be obtained based on the above teachings. The selection and description of the above embodiments are for the purpose of better explaining the principles and practical applications, thereby enabling those skilled in the art to better utilize the described embodiments and various different variations of embodiments suitable for specific use considerations.

Claims

1. An indoor unit, characterized in that, include: Outer cover; The panel is integrally formed with the outer cover; A base, wherein the base is disposed inside the outer cover; A cross-flow fan, with both ends of the cross-flow fan mounted on the base; An electric motor is disposed at one end of the base along its length, and the motor is used to drive the cross-flow fan to rotate. A voice box, wherein the voice box is disposed inside the outer casing; A voice board, which is disposed inside the voice box, is used to collect external sounds; The elastic frame has one end abutting against the bottom wall of the voice box and the other end abutting against the top of the voice board. The elastic frame is used to support the voice board to fit against the panel.

2. The indoor unit according to claim 1, characterized in that, A small hole is provided on the panel near the voice box, and the small hole is used to transmit sound.

3. The indoor unit according to claim 1, characterized in that, In its uncompressed free state, the dimension of the elastic frame perpendicular to the voice board is greater than the distance between the bottom wall of the voice box and the inner wall of the panel, so that the voice board tends to conform to the panel under the pre-tightening force of the elastic frame.

4. The indoor unit according to claim 1, characterized in that, The elastic frame includes elastic legs, and a plurality of the elastic legs are disposed on the side of the voice board away from the panel. The distance between adjacent elastic legs gradually increases from one end closer to the voice board to the other end.

5. The indoor unit according to claim 4, characterized in that, It also includes a support plate, which is disposed at one end of the elastic support leg near the voice board, and the support plate is used to transmit the supporting force from the elastic support leg to the voice board; One side of the support plate abuts against the side wall of the voice box to provide lateral restraint for the support plate.

6. The indoor unit according to claim 5, characterized in that, The voice board has openings at both ends along its length, and the support plate has positioning protrusions located within the openings to position the voice board.

7. The indoor unit according to claim 5, characterized in that, The distance between two adjacent elastic legs away from the end of the support plate is greater than the length of the support plate in the same direction, so as to improve the support stability of the elastic frame.

8. The indoor unit according to claim 4, characterized in that, The end of the elastic support leg that contacts the bottom wall of the voice box is provided with an arc-shaped abutment surface, which is used to disperse contact stress.

9. The indoor unit according to claim 1, characterized in that, Also includes: An electrical box, which is disposed on the base; The display box is integrated with the voice box and is fixedly mounted on the electrical box; The display panel is disposed inside the display box and is electrically connected to the voice board.

10. The indoor unit according to claim 9, characterized in that, The display box is equipped with a limit buckle, which is used to limit the position of the display panel.

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