Air conditioner indoor unit

Abstract

The application provides an air conditioner indoor unit, which comprises a shell and a base, the base is installed at an air outlet, a guide vane is arranged at a guide air outlet, a driving assembly is used for driving the guide vane to rotate relative to the base, the driving assembly comprises a motor and a sound insulation cover, an output end of the motor is connected with the guide vane, the sound insulation cover is arranged outside the motor, a first fixing part and a second fixing part are arranged on the base, the first fixing part is used for fixing the motor, the second fixing part is used for fixing the sound insulation cover, and the first fixing part and the second fixing part are distributed along the circumference of the sound insulation cover. The sound insulation cover is arranged on the outer surface of the motor, the motor is limited in two directions, the motor is fixed on the base, vibration transmission is reduced, the sound insulation cover and the outer peripheral wall of the motor abut to form a ring-shaped constraint, the noise of the motor is blocked, the vibration amplitude of the motor is further inhibited through contact limiting, the silent effect is enhanced, and the service life of the guide vane is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of air conditioning technology, and in particular to an indoor unit for air conditioning. Background Technology

[0002] Air conditioner indoor units typically have air deflectors at their air outlets to adjust the airflow angle and meet different user needs. The air deflectors rotate under the drive of a stepper motor to open and close the air outlets.

[0003] In existing technologies, motors often employ a single-arm fixing structure, meaning they are connected to the base only through a fixing point on one side or in one direction, forming a single-arm support installation. This connection method has significant structural defects: the force points of the single-arm fixation are concentrated, failing to provide balanced constraint for the motor in all directions. The periodic vibrations generated during motor operation easily lead to loosening of the fixing points, further aggravating the vibration amplitude. Moreover, the vibration is directly transmitted to the base and air guide plate through a single force path. Because the air guide plate is usually designed as a long plate structure to meet the requirements of the sweeping coverage area, its own rigidity is low, and its natural frequency easily overlaps with the motor excitation frequency. Under vibration excitation, it is prone to resonance, resulting in significant structural vibration noise. This vibration noise not only reduces user comfort but may also cause the air guide plate connection points to loosen and wear more rapidly with increased equipment usage time, affecting the operational stability and service life of the equipment.

[0004] Therefore, there is an urgent need to propose an indoor air conditioning unit. Utility Model Content

[0005] The present invention aims to solve, at least to some extent, the technical problems in the related art.

[0006] Therefore, according to embodiments of this disclosure, an air conditioning indoor unit is proposed, comprising: A housing, wherein an air duct is formed inside the housing, and an air inlet and an air outlet communicating with the air duct are provided on the housing; A base is installed on the side of the housing near the air outlet, and the base is provided with an air guide for connecting the air outlet and the room. An air guide plate is disposed at the air guide port and rotates relative to the base to open or close the air guide port; A drive assembly for driving the air guide plate to rotate relative to the base, the drive assembly comprising: An electric motor is mounted on the outer surface of the base end, and the output end of the motor is connected to the air guide plate to drive the air guide plate to move. A soundproof cover is installed over the motor; The base is provided with a first fixing part and a second fixing part. The first fixing part is used to fix the motor, and the second fixing part is used to fix the soundproof cover. The first fixing part and the second fixing part are distributed at intervals along the circumference of the soundproof cover.

[0007] In the above technical solution, the first and second fixing parts on the base are distributed circumferentially along the soundproof cover. The circumferential spacing disperses the fixing force points of the two parts, avoiding the local stress superposition caused by the concentration of fixing positions, and improving the structural stability of the base. It achieves a firm positioning of the motor on the base, reducing the basis for vibration transmission. The soundproof cover and the outer peripheral wall of the motor form a ring-shaped constraint, which not only blocks the motor's own operating noise, but also further suppresses the motor vibration amplitude through contact limiting. At the same time, the motor is installed on the outer surface of the end of the base, and with the direct connection between the air guide plate and the motor output end, the force transmission path is shortened. At the same time, the structural rigidity of the base disperses the vibration energy, effectively reducing the resonance noise generated by the air guide plate due to excitation, taking into account both driving stability and quiet effect, and enhancing the service life of the air guide plate.

[0008] According to an embodiment of this disclosure, the first fixing part is arranged on one side of the motor along the extension direction of the first diameter of the motor, and the motor is fixed to the first fixing part through a first mounting hole provided therein; The second fixing part is disposed on one side of the soundproof cover along the extension direction of the second diameter of the motor, and the soundproof cover is fixed to the second fixing part through a second mounting hole provided therein; the outer peripheral wall of the motor abuts against the inner wall of the soundproof cover; The first diameter is perpendicular to the second diameter.

[0009] In the above technical solution, the motor is fixed bidirectionally along the first diameter direction by the first fixing part, and then fixed to the second fixing part through the second mounting hole of the soundproof cover, forming a second direction limit perpendicular to the first diameter, realizing the firm positioning of the motor on the base, reducing the basis of vibration transmission. The soundproof cover abuts against the second side of the motor to form a ring-shaped constraint, which not only blocks the motor's own operating noise, but also further suppresses the motor vibration amplitude through contact limit. At the same time, the motor is installed on the outer surface of the end of the base, and the direct connection between the air guide plate and the motor output end shortens the force transmission path. At the same time, the structural rigidity of the base disperses the vibration energy, effectively reducing the resonance noise generated by the excitation of the air guide plate, taking into account both driving stability and quiet effect, and enhancing the service life of the air guide plate.

[0010] According to an embodiment of this disclosure, the direction from the top end of the housing to the bottom end of the housing is the height direction of the housing; Define a straight line extending along the height direction as the first straight line, the angle between the first diameter and the first straight line as the first included angle, and the angle between the second diameter and the first straight line as the second included angle; The first included angle is not less than the second included angle.

[0011] In the above technical solution, taking the height direction of the shell as a reference, the first angle between the first diameter and the first angle in that direction is not less than the second angle corresponding to the second diameter. The soundproof cover can provide the motor with a supporting force to overcome the motor's gravity. Under the action of gravity, the force on the motor along the height direction can be transmitted to the soundproof cover through the abutment structure between the outer peripheral wall and the inner wall of the soundproof cover. At the same time, the fixed cooperation between the second fixing part and the second mounting hole provides a stable support for the soundproof cover, so that the soundproof cover not only plays a sound insulation role, but also directly shares the motor's gravity load, reduces the force concentration at the motor mounting part, further suppresses the vibration displacement caused by gravity, and improves the stability and quietness of the overall structure.

[0012] According to embodiments of this disclosure, the soundproof enclosure includes: The soundproof cover body has a receiving cavity for enclosing the motor, and the soundproof cover body is fitted onto the motor; The connecting part is disposed on the side of the soundproof cover body extending along the second diameter of the motor and close to the second fixing part; The mounting part is located on the side of the connecting part away from the soundproof cover body, and a second mounting hole is provided on the mounting part for connecting with the second fixing part.

[0013] In the above technical solution, the soundproof cover body forms a cavity that encloses the motor, which can fully cover the motor to block operating noise. The connecting part extends along the second diameter direction of the motor and precisely connects the body and the mounting part, so that the fixed position of the mounting part corresponds to the second fixing part.

[0014] According to an embodiment of this disclosure, the soundproof enclosure body includes: A first housing, the shape of which matches the shape of the motor; A sound insulation layer is disposed on the side of the first housing near the motor.

[0015] In the above technical solution, the shape of the first housing matches the shape of the motor, allowing it to fit snugly against the motor to form a stable enclosure. This provides rigid support for the overall structure and limits the spread of motor vibration. The inner sound insulation layer absorbs high-frequency vibrations and airborne sound generated by the motor's operation through its material properties, effectively blocking the noise transmission path. Together, these two elements give the soundproof enclosure reliable structural constraints while enhancing noise reduction through both physical isolation and damping sound absorption. This significantly reduces the transmission of motor vibration to the base and air guide plate, further improving the equipment's quietness.

[0016] According to embodiments of this disclosure, the soundproof enclosure body further includes: The second housing is disposed on the side of the first housing close to the motor. A mounting groove is formed between the first housing and the second housing. Along the extension direction of the second diameter of the motor, the outer peripheral wall of the motor abuts against the inner wall of the second housing. The sound insulation layer is installed in the mounting groove.

[0017] In the above technical solution, the second housing directly abuts against the outer peripheral wall of the motor, which can accurately bear the weight of the motor along the second diameter direction, enhancing the constraint stability of the motor. The mounting groove formed by the first and second housings provides an independent space for the sound insulation layer, which not only avoids the sound insulation layer from deforming and failing due to direct force, but also ensures that it fully covers the periphery of the motor, giving full play to the vibration absorption and noise reduction effect. At the same time, the double-layer housing structure improves the overall rigidity of the sound insulation cover, which can more effectively block the transmission of motor vibration to the outside. The three-layer structure works together to achieve multiple functions of stable support, vibration suppression and noise isolation, further reducing the operating noise of the equipment.

[0018] According to an embodiment of this disclosure, a wire hole is provided on the connecting part, the wire hole being used for the wires installed on the terminals of the motor to pass through.

[0019] In the above technical solution, the wire hole provides a dedicated passage for the motor cable, preventing the wire from being randomly tangled or squeezed between the soundproof cover and the motor, preventing cable wear or additional noise caused by vibration. In addition, the wiring is arranged along the extension direction of the connection part, which does not interfere with the sealing effect of the soundproof cover body on the motor, ensuring the integrity of the soundproof cavity to maintain noise reduction performance and improving the standardization and reliability of the overall assembly.

[0020] According to an embodiment of this disclosure, the extension direction of the wire hole is the same as the axial direction of the outer peripheral wall of the soundproof cover body.

[0021] In the above technical solution, the opening direction of the wire hole extends along the axial direction of the soundproof cover body, so that the cable of the motor terminal can extend smoothly along the outer surface of the soundproof cover after passing through, avoiding excessive bending of the cable or hard contact with the hole wall, and reducing the additional noise generated by the cable due to vibration and friction during equipment operation.

[0022] According to an embodiment of this disclosure, at least one support rod is provided inside the air guide, the first end of the support rod is fixedly connected to the base, and the second end of the support rod is rotatably connected to the air guide plate.

[0023] In the above technical solution, the support rod set inside the air guide provides an additional support point for the air guide through a structure in which the first end is fixed to the base and the second end is rotatably connected to the air guide plate. This effectively enhances the overall rigidity of the long strip air guide plate, suppresses its vibration and resonance under the action of motor drive and airflow, reduces noise generation, and further improves the reliability and quietness of equipment operation.

[0024] According to an embodiment of this disclosure, a plurality of oscillating plates are further provided inside the air guide; the first ends of the plurality of oscillating plates are connected by a connecting rod, and the second ends of the plurality of oscillating plates are connected to the base; Each of the swing plates is connected to a driving component, which drives the swing plate to swing along the length of the air guide.

[0025] In the above technical solution, multiple swing plates in the air guide are synchronized through connecting rods, ensuring that all swing plates swing in a coordinated manner along the length of the air guide under the action of the driving component, and accurately adjust the airflow direction to improve the uniformity of air delivery; the connecting rods disperse the force on a single swing plate, avoiding abnormal noise caused by local stress concentration, and the driving component only needs to drive a single swing plate to drive the overall movement, reducing energy consumption.

[0026] 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

[0027] Figure 1 This is a schematic diagram of the structure of an air conditioner indoor unit according to an embodiment of this application; Figure 2 This is a schematic diagram of the internal structure of an air conditioner indoor unit according to an embodiment of this application; Figure 3 yes Figure 2 A magnified structural diagram of A in the middle; Figure 4 This is a schematic diagram of the internal structure of an air conditioner indoor unit from another perspective of an embodiment of this application; Figure 5 This is a schematic diagram of the internal side view of an air conditioner indoor unit according to an embodiment of this application; Figure 6 This is a schematic diagram of the structure of a base according to an embodiment of this application; Figure 7 This is a schematic diagram of the structure of a wind guide plate according to an embodiment of this application; Figure 8 This is a first-view structural schematic diagram of a soundproof enclosure according to an embodiment of this application; Figure 9 This is a second-view structural schematic diagram of a soundproof enclosure according to an embodiment of this application; Figure 10This is a schematic diagram of the structure of a sound insulation layer according to an embodiment of this application.

[0028] The annotations in the attached figures are explained as follows: 1. Shell; 2. Base; 210. Air vent; 220. First fixing part; 230. Second fixing part; 3. Air guide plate; 4. Drive assembly; 410. Motor; 411. Connecting wire; 412. First mounting hole; 420. Soundproof enclosure; 421. Soundproof enclosure body; 4211. First housing; 4212. Soundproof layer; 4213. Second housing; 4214. Mounting groove; 422. Connecting part; 4221. Wire hole; 423. Mounting part; 4231. Second mounting hole; 5. Support rod; 6. Swing plate; 7. Connecting rod; 8. Reinforcing plate; 9. Connecting plate. Detailed Implementation

[0029] Typical embodiments embodying the features and advantages of this utility model will be described in detail in the following description. It should be understood that this utility model can have various variations in different embodiments, all of which do not depart from the scope of this utility model, and the descriptions and illustrations therein are for illustrative purposes only and not intended to limit this utility model.

[0030] 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", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used 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. Therefore, they should not be construed as limitations on this application.

[0031] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0032] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0033] This application discloses an indoor unit for an air conditioner, as shown in the appendix below. Figures 1-10 Describe the indoor unit of the air conditioner.

[0034] In this application, the indoor unit of an air conditioner can be a component of an air conditioner. The air conditioner may also include an outdoor unit. (See reference...) Figure 1 The indoor unit of the air conditioner can be a split wall-mounted air conditioner, and the air conditioner can be a cooling unit or a cooling and heating unit. In the description of this utility model, the air conditioner is used as an example of a cooling and heating unit.

[0035] In this application, the outdoor unit of an air conditioner may include an outdoor unit housing. The outdoor unit housing may contain an outdoor receiving space. The outdoor unit may include an outdoor heat exchanger. The outdoor heat exchanger may be located within the outdoor receiving space. The outdoor unit may also include an outdoor fan. The outdoor fan may be located within the outdoor receiving space.

[0036] In this application, the outdoor unit casing may be provided with an outdoor air inlet. The outdoor air inlet may communicate with the outdoor enclosure space. The outdoor air inlet can be used to introduce outdoor airflow into the outdoor enclosure space. The outdoor unit casing may be provided with an outdoor air outlet. The outdoor air outlet may communicate with the outdoor enclosure space. The outdoor air outlet can be used to lead the airflow from the outdoor enclosure space to the outside of the outdoor enclosure space. The rotation of the outdoor fan causes the outdoor airflow to enter the outdoor enclosure space through the outdoor air inlet and exchange heat with the outdoor heat exchanger. The heat-exchanged outdoor airflow flows out of the outdoor enclosure space through the outdoor air outlet.

[0037] In this application, the air conditioner may include a compressor. The compressor may be located within an outdoor enclosure. The air conditioner may include a throttling device. The throttling device is used for throttling. The throttling device may be located within an outdoor enclosure.

[0038] Reference Figures 1-10 This application proposes an indoor air conditioner unit. The indoor air conditioner unit includes a housing 1. The housing 1 is configured as the housing of the indoor air conditioner unit. The housing 1 can be a hollow cuboid structure. It should be noted that in other embodiments, the housing 1 can also adopt other shapes. The specific shape of the housing 1 can be adjusted as needed and is not limited here.

[0039] In this application, reference is made to Figure 1 The housing 1 may have a top and a bottom. The distance from the bottom to the top of the housing 1 can be the height direction of the housing 1. The housing 1 may also have a length direction. The distance from the first end to the second end of the housing 1 can be the length direction of the housing 1, as shown in the figure. Figure 3 The left side of housing 1 is the first side end, and the right side of housing 1 is the second side end. Housing 1 may have a front side and a rear side that are arranged opposite to each other. The side of housing 1 facing the user can be the front side of housing 1. The distance from the front side to the rear side of housing 1 can be the thickness direction of housing 1.

[0040] In this application, references Figure 1 and Figure 2 An air duct is formed inside the shell 1, and an air inlet and an air outlet connected to the air duct are provided on the shell 1. A fan and an indoor heat exchanger (not shown in the figure) are provided inside the shell 1. The fan rotates inside the shell 1 and draws in the air outside the shell 1 through the air inlet. The air is then sent out through the air outlet of the indoor heat exchanger inside the shell 1.

[0041] In this application, one of the indoor heat exchanger and the other of the outdoor heat exchanger is a condenser and the other is an evaporator.

[0042] In this application, the air conditioner performs a refrigeration cycle using a compressor, a condenser, a throttling device, and an evaporator. The refrigeration cycle includes a series of processes involving compression, condensation, expansion, and evaporation, supplying refrigerant to a regulated and heat-exchanged gas stream. The compressor compresses the refrigerant gas at a low temperature and low pressure, discharging it at a high temperature and high pressure. The discharged refrigerant gas flows into the condenser. The condenser condenses the compressed refrigerant into a liquid phase, and heat is released to the surrounding environment through the condensation process. The throttling device expands the high-temperature, high-pressure liquid refrigerant condensed in the condenser into a low-pressure liquid refrigerant.

[0043] In this application, the evaporator evaporates the refrigerant that expands in the throttling device and returns the refrigerant gas, which is in a low-temperature, low-pressure state, to the compressor. The evaporator achieves a cooling effect by utilizing the latent heat of refrigerant evaporation to exchange heat with the material to be cooled. Throughout the cycle, the air conditioner can regulate the temperature of the indoor space.

[0044] In this application, when the indoor heat exchanger is used as a condenser, the air conditioner is used as a heater in heating mode; when the indoor heat exchanger is used as an evaporator, the air conditioner is used as a cooler in cooling mode.

[0045] In this application, the air inlet can be the entrance for airflow into the housing 1. The air inlet can be located on the rear side of the housing 1. The air outlet can be the outlet for airflow out of the housing 1, and the opening direction of the air outlet extends along the length direction of the housing 1. The air outlet can be located on the side of the housing 1, or it can be located on the front side of the housing 1. The specific location of the air outlet can be adjusted as needed and is not limited here. In this application, the air outlet is located on the front side of the housing 1.

[0046] In this application, reference is made to Figure 2 , Figure 3 and Figure 4 The indoor unit of the air conditioner may also include a base 2 and an air guide plate 3. The base 2 is mounted on the housing 1 and located on the side of the housing 1 where the air outlet is located. The base 2 is provided with an air guide port 210 for connecting the air outlet and the indoor unit. The air guide plate 3 is rotatably connected to the base 2. The air guide plate 3 rotates relative to the base 2 to open or close the air guide port 210, thereby controlling the airflow direction of the indoor unit. Specifically, the base 2 is mounted on the housing 1 by means of snap-fit, welding, or bolt connection, and the air guide port 210 of the base 2 is connected to the air outlet of the unit. The air guide plate 3 is rotatably connected to the base 2 via a rotating shaft, which is driven to rotate by a motor 410 fixedly mounted on the base 2. The air guide plate 3 rotates relative to the base 2 to open or close the air guide port 210. The airflow direction and airflow on / off are controlled by the air guide plate 3 at different working positions at the air outlet.

[0047] The air guide plate 3 can be made of plastic and has a long plate-like structure. The length of the air guide plate 3 is adapted to the extension length of the air guide port 210. In a cross-section parallel to the thickness direction of the housing 1, the projection of the air guide plate 3 in the cross-section can be arc-shaped. Plastic material is lightweight, low-cost, and easy to process into arc shapes, which reduces the load on the drive component 4 to reduce the risk of jamming. The long plate-like structure is adapted to the extension length of the air guide port 210, which can achieve full coverage and complete air guidance of the air guide port 210, avoiding local air leakage or uneven air guidance. At the same time, the arc-shaped cross-section parallel to the thickness direction of the housing 1 can reduce the resistance and turbulence noise when the airflow passes through, making the airflow smoother and gentler. It can also accurately guide the airflow direction through the arc surface, better realize the directional delivery of specific wind patterns in various modes, and take into account practicality and user experience.

[0048] In this application, reference is made to Figure 2 , Figure 3 and Figure 4 The indoor unit of the air conditioner may also include a drive assembly 4 for driving the air guide plate 3 to rotate relative to the base 2. (Refer to...) Figure 3 and Figure 4The drive assembly 4 includes a motor 410 and a soundproof cover 420. The motor 410 is mounted on the outer surface of the end of the base 2, and the output end of the motor 410 is connected to the air guide plate 3 to drive the air guide plate 3 to move; the soundproof cover 420 is placed over the motor 410.

[0049] Among them, motor 410 can be a progressive motor 410.

[0050] Among them, reference Figure 5 The base 2 is provided with a first fixing part 220 and a second fixing part 230. The first fixing part 220 is used to fix the motor 410, and the second fixing part 230 is used to fix the soundproof cover 420. The first fixing part 220 and the second fixing part 230 are distributed at intervals along the circumference of the soundproof cover 420.

[0051] Thus, the first fixing part 220 and the second fixing part 230 on the base 2 are distributed circumferentially along the soundproof cover 420. The circumferentially spaced layout disperses the fixing force points of the two parts, avoiding the local stress superposition caused by the concentration of fixing positions, and improving the structural stability of the base 2. It realizes the firm positioning of the motor 410 on the base 2, reduces the basis for vibration transmission, and the soundproof cover 420 and the outer peripheral wall of the motor 410 abut against each other to form a ring-shaped constraint, which not only blocks the operating noise of the motor 410 itself, but also further suppresses the vibration amplitude of the motor 410 through contact limit. At the same time, the motor 410 is installed on the outer surface of the end of the base 2, and the direct connection between the air guide plate 3 and the output end of the motor 410 shortens the force transmission path. At the same time, the structural rigidity of the base 2 disperses the vibration energy, effectively reducing the resonance noise generated by the excitation of the air guide plate 3, taking into account both driving stability and quiet effect, and enhancing the service life of the air guide plate 3.

[0052] In this application, the first fixing part 220 is arranged on one side of the motor 410 along the extension direction of the first diameter of the motor 410, and the motor 410 is fixed to the first fixing part 220 and the second fixing hole through its own first mounting hole 412; the second fixing part 230 is arranged on one side of the soundproof cover 420 along the extension direction of the second diameter of the motor 410, and the soundproof cover 420 is fixed to the second fixing part 230 through its own second mounting hole 4231; along the extension direction of the second diameter of the motor 410, the second side of the motor 410 abuts against the inner wall of the soundproof cover 420; the first diameter is perpendicular to the second diameter.

[0053] The perpendicularity of the first diameter to the second diameter refers to two mutually perpendicular diametrical directions of the motor 410 within a cross-section along the height direction of the housing 1. The first fixing part 220 can be a threaded hole, a locating pin hole, or a snap-fit ​​structure, symmetrically distributed along the diametrical direction of the motor 410. The second fixing part 230 can be a countersunk hole, a threaded hole, a locating pin hole, or a snap-fit ​​structure. At least one layer of the soundproof cover 420 can be made of an elastic material, such as silicone or a rubber composite material.

[0054] Specifically, refer to Figure 5 The motor 410 is rigidly connected to the base 2 via a fixing part, and then a soundproof cover 420 is fitted over the motor 410. The soundproof cover 420 is fixed to the base 2 by the cooperation of the second fixing part 230 and the second mounting hole 4231. When the motor 410 is running, the lateral vibration of the motor 410 is dispersed and absorbed by the fixing holes on both sides, and the longitudinal vibration is buffered and attenuated by the inner wall of the soundproof cover 420. The air guide plate 3 can be connected to the output end of the motor 410 by a flexible coupling to further block the transmission of residual vibration. The two-point fixing layout on the base 2 forms a spatially stable support, preventing the motor 410 from deflecting due to unilateral force.

[0055] Traditional solutions use only one or both sides of bolts to fix the motor 410, employing a cantilever beam structure model with single-sided constraint, which cannot suppress multi-directional vibration. This application achieves bidirectional constraint through orthogonally distributed fixing holes, with the soundproof cover 420 in direct contact with the motor 410, achieving dual noise reduction through both material vibration absorption and structural limitation. Thus, the motor 410 is fixed along the first diameter direction by the first fixing part 220, and then fixed to the second fixing part 230 through the second mounting hole 4231 of the soundproof cover 420, forming a second direction limit perpendicular to the first diameter. This achieves a firm positioning of the motor 410 on the base 2, effectively blocking the transmission path of the motor 410 vibration to the air guide plate 3, reducing low-frequency noise caused by structural resonance, and reducing the basis for vibration transmission. The soundproof cover 420 abuts against the outer peripheral wall of the motor 410 to form a ring-like constraint, which not only blocks the operating noise of the motor 410 itself, but also further suppresses the vibration amplitude of the motor 410 through contact limit. At the same time, the motor 410 is installed on the outer surface of the end of the base 2, and with the direct connection between the air guide plate 3 and the output end of the motor 410, the force transmission path is shortened. At the same time, the structural rigidity of the base 2 is used to disperse the vibration energy, effectively reducing the resonance noise generated by the excitation of the air guide plate 3, taking into account both driving stability and quiet effect, and enhancing the service life of the air guide plate 3. The air guide plate 3 operates smoothly in a low-vibration environment, significantly reducing abnormal noise problems during the sweeping process.

[0056] In this application, referring to ,5, the direction from the top of the shell 1 to the bottom of the shell 1 is the height direction of the shell 1; a straight line extending along the height direction is defined as the first straight line, the angle between the first diameter and the first straight line is the first included angle, and the angle between the second diameter and the first straight line is the second included angle; the first included angle is not less than the second included angle.

[0057] It is understandable that the first straight line refers to a virtual reference line extending along the height direction of the housing 1, which can be specifically achieved by connecting the geometric centers of the top and bottom ends of the housing 1. The first included angle refers to the tilt angle between the first diameter direction of the motor 410 and the first straight line, which can be specifically achieved by adjusting the position of the fixing part of the motor 410 base 2. The second included angle refers to the tilt angle between the second diameter direction of the motor 410 and the first straight line, which can be specifically achieved by the installation position of the soundproof cover 420.

[0058] Specifically, the first diameter direction of the motor 410 forms a large angle with the height direction of the housing 1, causing the fixing points of the motor 410 on the base 2 to be distributed along a first straight line; the second diameter direction forms a small angle with the height direction of the housing 1, causing the soundproof cover 420 on the second side of the motor 410 to be nearly parallel to the height direction of the housing 1. The contact surface between the inner wall of the soundproof cover 420 and the outer peripheral wall of the motor 410 provides support, counteracting the gravitational component of the motor 410. Vibrations in the first diameter direction are transmitted to the base 2 through the first fixing part, while vibrations in the second diameter direction are absorbed by the contact surface between the soundproof cover 420 and the base 2, thereby reducing the vibration energy transmitted to the air guide plate 3.

[0059] Thus, taking the height direction of the housing 1 as a reference, the first angle between the first diameter and the first angle in that direction is not less than the second angle corresponding to the second diameter. Under the action of gravity, the force on the motor 410 along the height direction can be transmitted to the soundproof cover 420 through the abutment structure between the outer peripheral wall and the inner wall of the soundproof cover 420. At the same time, the fixed cooperation between the second fixing part 230 and the second mounting hole 4231 provides a stable support for the soundproof cover 420, so that the soundproof cover 420 not only plays a soundproofing role, but also directly shares the gravity load of the motor 410, reduces the force concentration at the mounting part 423 of the motor 410, further suppresses the vibration displacement caused by gravity, and improves the stability and quietness of the overall structure.

[0060] In this application, reference is made to Figure 8 The soundproof cover 420 includes a soundproof cover body 421, a connecting portion 422, and a mounting portion 423. The soundproof cover body 421 is provided with a receiving cavity for enclosing the motor 410, and the soundproof cover body 421 is sleeved on the motor 410; the connecting portion 422 is provided on the side of the soundproof cover body 421 along the extension direction of the second diameter of the motor 410, and close to the second fixing portion 230; the mounting portion 423 is provided on the side of the connecting portion 422 away from the soundproof cover body 421, and a second mounting hole 4231 is provided on the mounting portion 423 for connecting with the second fixing portion 230.

[0061] The soundproof enclosure body 421 refers to a cavity structure that matches the shape of the motor 410. It can be manufactured using injection molding or stamping processes and is used to enclose the motor 410. The connecting part 422 refers to a box-shaped structure extending from the soundproof enclosure body 421. It can be integrally formed with the soundproof enclosure body 421. The mounting part 423 refers to a fixing platform located at the end of the connecting part 422. It can be implemented using a metal insert with through holes, or it can be integrally formed with the soundproof enclosure body 421 and the connecting part 422. It is bolted to the second fixing part 230 through the second mounting hole 4231, forming a unilateral fixing constraint.

[0062] Specifically, the soundproof enclosure body 421 completely encloses the motor 410 through a wrap-around design, effectively isolating the transmission of airborne noise generated by the vibration of the motor 410 rotor. The connecting part 422 extends along the second diameter direction to the vicinity of the second fixing part 230, forming a rigid support surface perpendicular to the axis of the motor 410. This direction forms an angle with the torque direction of the motor 410 driving the air guide plate 3 to rotate, which can decompose the vibration load. The mounting part 423 forms a single-point fixation with the second fixing part 230 through the second mounting hole 4231. Combined with the contact limitation between the other side of the motor 410 and the inner wall of the soundproof enclosure 420, a three-point constraint system is formed, which effectively reduces the possibility of the motor 410 vibration being transmitted to the air guide plate 3.

[0063] Thus, the soundproof cover body 421 forms a cavity that encloses the motor 410, which can fully cover the motor 410 to block operating noise. The connecting part 422 extends along the second diameter direction of the motor 410, and precisely connects the body and the mounting part 423, so that the fixed position of the mounting part 423 corresponds to the second fixing part 230.

[0064] In this application, reference is made to Figure 9 and Figure 10 The soundproof cover body 421 includes a first housing 4211 and a soundproof layer 4212. The shape of the first housing 4211 matches the shape of the motor 410; the soundproof layer 4212 is disposed on the side of the first housing 4211 close to the motor 410.

[0065] For example, the first housing 4211 refers to a rigid support structure that surrounds the outer surface of the motor 410. It can be manufactured by injection molding or stamping processes, for example, using ABS engineering plastic or metal sheet. Its inner cavity contour complements the shape of the motor 410 housing. The sound insulation layer 4212 refers to a sound-absorbing material layer attached to the inside of the housing 1. It can be implemented using porous sound-absorbing cotton or rubber damping sheets. For example, a 3-5mm thick polyurethane foam can be fixed to the inner wall of the first housing 4211 with an adhesive, absorbing the vibration energy generated by the motor 410 through the viscoelastic properties of the material itself.

[0066] Thus, the shape of the first housing 4211 matches the shape of the motor 410, allowing it to fit snugly against the motor 410 to form a stable enclosure. This provides rigid support for the overall structure and limits the vibration diffusion of the motor 410. The inner sound insulation layer 4212 absorbs the high-frequency vibrations and airborne sound generated by the motor 410 through its material properties, effectively blocking the noise transmission path. Together, these two elements enable the soundproof cover 420 to possess both reliable structural constraint capabilities and enhanced noise reduction through the dual effects of physical isolation and damping sound absorption. This significantly reduces the transmission of motor 410 vibrations to the base 2 and the air guide plate 3, further improving the equipment's quietness performance.

[0067] In this application, reference is made to Figure 9 and Figure 10 The soundproof enclosure body 421 may also include a second housing 4213. The second housing 4213 is disposed on the side of the first housing 4211 near the motor 410, and a mounting groove 4214 is formed between the first housing 4211 and the second housing 4213. Along the extension direction of the second diameter of the motor 410, the outer peripheral wall of the motor 410 abuts against the inner wall of the second housing 4213; the soundproof layer 4212 is installed in the mounting groove 4214.

[0068] The second housing 4213 refers to the auxiliary housing 1 structure superimposed inside the first housing 4211, and can be injection molded, for example, made of ABS engineering plastic. The mounting groove 4214 is a cavity structure formed by the nested double housings 1, used to fix the sound insulation layer 4212 and form a vibration buffer space. The sound insulation layer 4212 is a vibration-absorbing material filled in the mounting groove 4214, specifically polyurethane foam or rubber damping sheets, used to absorb the mechanical vibration energy transmitted by the housing 1.

[0069] Specifically, the second housing 4213 directly abuts against the outer shell of the motor 410, forming a mechanical support, which allows the vibration energy of the motor 410 to be preferentially transferred to the second housing 4213. When the vibration wave is transmitted within the second housing 4213, some of the energy is absorbed by the sound insulation layer 4212 and converted into heat energy. The remaining energy is further attenuated when it is transmitted to the first housing 4211 due to the buffering effect of the mounting groove 4214. The double-housing structure 1 forms a stepped attenuation mechanism for the vibration transmission path. The sound insulation layer 4212 is wrapped and fixed within the mounting groove 4214 by the double housing 1, preventing material displacement or detachment due to long-term vibration.

[0070] Thus, the second housing 4213 directly abuts against the outer peripheral wall of the motor 410, accurately bearing the abutment force of the motor 410 along the second diameter direction, enhancing the constraint stability of the motor 410. The mounting groove 4214 formed by the first housing 4211 and the second housing 4213 provides an independent space for the sound insulation layer 4212, which not only prevents the sound insulation layer 4212 from deforming and failing due to direct force, but also ensures that it fully covers the periphery of the motor 410, giving full play to its vibration absorption and noise reduction effect. At the same time, the double-layer housing 1 structure improves the overall rigidity of the sound insulation cover 420, which can more effectively block the vibration of the motor 410 from being transmitted to the outside. The three-layer structure works together to achieve multiple functions of stable support, vibration suppression and noise isolation, further reducing the operating noise of the equipment.

[0071] In this application, reference is made to Figure 8 , Figure 9 and Figure 10 A wire hole 4221 is provided on the connecting part 422. The wire hole 4221 is used for the wires installed on the terminal of the motor 410 to pass through.

[0072] Understandably, the motor 410 has a connecting wire 411 for connecting to the main unit on its terminal block. To avoid the connecting wire 411, a wire hole 4221 is provided on the connecting part 422. Optionally, the wire hole 4221 can be square or round, as long as it meets the routing requirements of the connecting wire 411.

[0073] After the connecting wire 411 is led out from the terminal of the motor 410, it passes through the wire hole 4221 and exits the soundproof cover 420, so that the wiring path forms a smooth transition with the outer wall of the soundproof cover 420. The wire hole 4221 is located close to the second fixing part 230 to ensure that the connecting wire 411 does not come into contact with the inner wall of the soundproof cover 420 during the process of passing through, and to avoid vibration noise caused by cable swinging or friction.

[0074] Thus, the wire hole 4221 provides a dedicated passage for the motor 410 cable, preventing the wire from being randomly tangled or squeezed between the soundproof cover 420 and the motor 410, preventing cable wear or additional noise caused by vibration. In addition, the wiring is arranged along the extension direction of the connection part 422, which does not interfere with the sealing effect of the soundproof cover body 421 on the motor 410, ensuring the integrity of the soundproof cavity to maintain noise reduction performance and improving the standardization and reliability of the overall assembly.

[0075] In this application, reference is made to Figure 8 , Figure 9 and Figure 10 The extension direction of the wire hole 4221 is the same as the axial direction of the outer periphery of the soundproof cover body 421.

[0076] It is understood that the wire hole 4221 refers to the through-hole structure provided on the connecting part 422. Specifically, it can be formed by stamping process to form a round hole or a square hole, etc., to guide the connecting wire 411 of the motor 410 terminal to extend outward. The axis of the opening extends along the axis of the soundproof cover body 421 and remains parallel to the tangent direction of the outer surface contour of the soundproof cover 420, so that the cable lead-out path forms a natural transition with the outer surface of the soundproof cover 420.

[0077] Thus, the opening direction of the wire hole 4221 is along the axial direction of the soundproof cover body 421, so that the cable of the motor 410 terminal can extend smoothly along the outer surface of the soundproof cover 420 after passing through, avoiding excessive bending of the cable or hard contact with the hole wall, and reducing the additional noise generated by the cable due to vibration and friction during equipment operation.

[0078] In this application, reference is made to Figure 6 At least one support rod 5 is provided inside the air guide 210. The first end of the support rod 5 is fixedly connected to the base 2, and the second end of the support rod 5 is rotatably connected to the air guide plate 3.

[0079] It is understood that the support rod 5 refers to the support structure connecting the base 2 and the air guide plate 3. It can be made of metal or engineering plastic and serves as an auxiliary support structure between the air guide plate 3 and the base 2. The first end of the support rod 5 can be rigidly connected to the base 2 via welding, bolts, or clips to transfer the vibration energy of the support rod 5 to the base 2. The second end of the support rod 5 can be rotatably connected to the air guide plate 3 via a hinge, bearing, or shaft structure. This can be achieved using a self-lubricating bushing to limit the vibration amplitude of the air guide plate 3 while preserving its rotational freedom.

[0080] Thus, the support rod 5 installed inside the air guide 210, with its first end fixed to the base 2 and its second end rotatably connected to the air guide plate 3, provides an additional support point for the air guide plate 3, effectively enhancing the overall rigidity of the elongated air guide plate 3. When the motor 410 drives the air guide plate 3 to rotate, the structural rigidity of the air guide plate 3 is enhanced due to the constraint of the support rod 5, the vibration amplitude is limited, and its vibration and resonance under the drive of the motor 410 and the action of airflow are suppressed, reducing noise generation and further improving the reliability and quietness of the equipment operation, while avoiding motion interference problems caused by rigid connection.

[0081] In this application, reference is made to Figure 6 Inside the air guide 210, there are also multiple swing plates 6; the first ends of the multiple swing plates 6 are connected by connecting rods 7, and the second ends of the multiple swing plates 6 are connected to the base 2; any one of the swing plates 6 is connected to a driving component, which is used to drive the swing plate 6 to swing along the length direction of the air guide 210.

[0082] It is understood that the swing plate 6 refers to a plate-like structure installed inside the air guide 210 to adjust the airflow direction. It can be made of flexible material, and the vibration load is distributed through the combination of multiple independent plates. Multiple swing plates 6 are connected by connecting rods 7, which can be metal connecting rods or integrally formed connecting frames, to ensure the synchronization of the swing trajectories of each swing plate 6. The driving component refers to the power device that drives the swing plate 6 to swing, which can be a micro stepper motor 410 or an electromagnetic driver.

[0083] Specifically, when the driving component drives one of the swing plates 6, the connecting rod 7 synchronously transmits power to the first ends of all the swing plates 6, causing multiple swing plates 6 to form an integrated linkage. The second end of the swing plate 6, constrained by its connection to the base 2, moves back and forth along the length of the air guide 210 through its own flexibility, forming a swing trajectory. This linkage structure allows vibration energy to be shared by multiple swing plates 6, preventing resonance caused by insufficient rigidity in a single air guide 3. The constraint effect of the sliding connection suppresses the displacement of the swing plates 6 in the non-swinging direction, reducing additional vibrations caused by excessive freedom of motion. The driving component only needs to act on a single swing plate 6 to achieve overall control, eliminating the vibration superposition caused by response differences among multiple driving sources.

[0084] In some specific embodiments, the connecting rod 7 may adopt a hollow tubular structure to reduce weight, such as an aluminum alloy tube with an outer diameter of 3 mm, and the driving component may be a progressive motor.

[0085] In this way, the multiple swing plates 6 in the air guide 210 are synchronized through the connecting rod 7, ensuring that all swing plates 6 swing in a coordinated manner along the length of the air guide 210 under the action of the driving component, accurately adjusting the airflow direction to improve the uniformity of air delivery. The linkage swing mechanism of the swing plates 6 ensures the synchronicity of airflow adjustment and avoids airflow turbulence and eddy noise caused by asynchronous movement. The connecting rod 7 disperses the force on a single swing plate 6, avoiding abnormal noise caused by local stress concentration. The driving component only needs to drive a single swing plate 6 to drive the overall movement, reducing energy consumption.

[0086] In this application, according to Figure 7 A reinforcing plate 8 is provided on the side of the air guide plate 3 near the base 2. The reinforcing plate 8 is arranged parallel to the first part of the air guide plate 3. Multiple connecting plates 9 are connected between the reinforcing plate 8 and the air guide plate 3.

[0087] Specifically, the reinforcing plate 8 refers to the plate-like structure connected to the air guide plate 3 body, which can be made of stamped metal sheet or integrally molded plastic material with the air guide plate 3. The connecting plate 9 refers to the transition structure connecting the air guide plate 3 and the reinforcing plate 8, which can be in the form of equally spaced ribs, achieving uniform load transfer through multi-point connections. The first part is the side of the air guide plate 3 near the bottom of the housing 1.

[0088] The reinforcing plate 8 extends along the length of the air guide plate 3, maintaining a parallel relationship with it, thus forming a double-layer composite structure at the base of the air guide plate 3. Multiple connecting plates 9 are welded between the air guide plate 3 and the reinforcing plate 8 in a spaced-out manner, forming a grid-like support system. When the motor 410 drives the air guide plate 3 to rotate, the vibration energy is transferred to the reinforcing plate 8 through the base 2. The reinforcing plate 8 bears the main bending stress, while the connecting plates 9 disperse the vibration energy to multiple nodes, avoiding stress concentration that could lead to resonance. Compared with existing technologies, the traditional air guide plate 3 uses a single-layer thin-walled structure, which is prone to bending deformation under the vibration excitation of the motor 410. This solution, however, uses a composite plate structure to form a distributed support system, which enhances local stiffness and optimizes the overall vibration modes.

[0089] Thus, the reinforcing plate 8, which is set on the side of the air guide plate 3 near the base 2, is parallel to the first part of the base 2 and is connected to the air guide plate 3 through multiple connecting plates 9, thereby improving the overall rigidity and structural strength of the air guide plate 3. The parallel arrangement allows the reinforcing plate 8 to evenly distribute the vibration load and airflow pressure borne by the air guide plate 3, avoiding deformation or resonance of the long strip air guide plate 3 due to insufficient rigidity. The multiple connecting plates 9 form multi-point support, further strengthening the connection stability between the air guide plate 3 and the reinforcing plate 8, reducing local stress concentration, and at the same time not affecting the rotational flexibility of the air guide plate 3, effectively suppressing the vibration noise under the drive of the motor 410 and the action of airflow.

[0090] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

[0091] 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 for an air conditioner, characterized in that, include: A housing, wherein an air duct is formed inside the housing, and an air inlet and an air outlet communicating with the air duct are provided on the housing; A base is installed on the side of the housing near the air outlet, and the base is provided with an air guide for connecting the air outlet and the room. An air guide plate is disposed at the air guide port and rotates relative to the base to open or close the air guide port; A drive assembly for driving the air guide plate to rotate relative to the base, the drive assembly comprising: An electric motor is mounted on the outer surface of the base end, and the output end of the motor is connected to the air guide plate to drive the air guide plate to move. A soundproof cover is installed over the motor; The base is provided with a first fixing part and a second fixing part. The first fixing part is used to fix the motor, and the second fixing part is used to fix the soundproof cover. The first fixing part and the second fixing part are distributed at intervals along the circumference of the soundproof cover.

2. The indoor unit of the air conditioner according to claim 1, characterized in that, The first fixing part is arranged on one side of the motor along the extension direction of the first diameter of the motor, and the motor is fixed to the first fixing part through a first mounting hole provided on itself; The second fixing part is disposed on one side of the soundproof cover along the extension direction of the second diameter of the motor, and the soundproof cover is fixed to the second fixing part through a second mounting hole provided therein; the outer peripheral wall of the motor abuts against the inner wall of the soundproof cover; The first diameter is perpendicular to the second diameter.

3. The indoor unit of the air conditioner according to claim 2, characterized in that, The direction from the top end of the housing to the bottom end of the housing is the height direction of the housing; Define a straight line extending along the height direction as the first straight line, the angle between the first diameter and the first straight line as the first included angle, and the angle between the second diameter and the first straight line as the second included angle; The first included angle is not less than the second included angle.

4. The indoor unit of the air conditioner according to claim 1, characterized in that, The soundproof enclosure includes: The soundproof cover body has a receiving cavity for enclosing the motor, and the soundproof cover body is fitted onto the motor; The connecting part is disposed on the side of the soundproof cover body extending along the second diameter of the motor and close to the second fixing part; The mounting part is located on the side of the connecting part away from the soundproof cover body, and a second mounting hole is provided on the mounting part for connecting with the second fixing part.

5. The indoor unit of the air conditioner according to claim 4, characterized in that, The soundproof enclosure body includes: A first housing, the shape of which matches the shape of the motor; A sound insulation layer is disposed on the side of the first housing near the motor.

6. The indoor unit of the air conditioner according to claim 5, characterized in that, The soundproof enclosure body also includes: The second housing is disposed on the side of the first housing close to the motor. A mounting groove is formed between the first housing and the second housing. Along the extension direction of the second diameter of the motor, the outer peripheral wall of the motor abuts against the inner wall of the second housing. The sound insulation layer is installed in the mounting groove.

7. The indoor unit of the air conditioner according to claim 4, characterized in that, The connection part is provided with a wire hole, which is used for the wires installed on the terminal of the motor to pass through.

8. The indoor unit of the air conditioner according to claim 7, characterized in that, The extension direction of the opening of the wire hole is the same as the axial direction of the outer peripheral wall of the soundproof cover body.

9. The indoor unit of the air conditioner according to claim 1, characterized in that, At least one support rod is provided inside the air guide, the first end of the support rod is fixedly connected to the base, and the second end of the support rod is rotatably connected to the air guide plate.

10. The indoor unit of the air conditioner according to claim 1, characterized in that, Multiple swing plates are also provided inside the air guide; the first ends of the multiple swing plates are connected by a connecting rod, and the second ends of the multiple swing plates are connected to the base. Each of the swing plates is connected to a driving component, which drives the swing plate to swing along the length of the air guide.

Images