An air conditioner

Abstract

The application provides an air conditioner, comprising a cabinet machine, the cabinet machine comprising: a casing, a fixed support, an air outlet grille and a rotating positioning assembly; the casing is provided with an air outlet; the fixed support is fixedly arranged on the casing and located at the air outlet; the fixed support comprises an annular frame and a radial frame; the two ends of the radial frame are connected to the annular frame in the radial direction of the annular frame so that the radial frame is arranged across the air outlet; the air outlet grille is rotatably arranged on the fixed support; the rotating positioning assembly is arranged at the rotation center of the air outlet grille; the air outlet grille is rotatably arranged on the fixed support through the rotating positioning assembly; the rotating positioning assembly comprises a bearing and a rotating shaft; the outer ring of the bearing is fixedly arranged relative to the radial frame; the rotating shaft is fixedly connected to the air outlet grille; the rotating shaft is arranged through the inner ring of the bearing; and the rotating shaft and the bearing are relatively fixed in the axial direction of the rotating shaft to achieve the mute effect of the rotation of the air outlet grille and improve the accuracy of the adjustment of the air outlet direction.

Description

Technical Field

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

[0002] In the field of air conditioning equipment, especially in cabinet air conditioners with adjustable airflow function, when the adjustable airflow function is activated, the air outlet grille needs to rotate back and forth within a preset angle range to change the airflow direction of the air outlet, thereby achieving adjustment of the airflow direction.

[0003] In related technologies, the rotating shaft at the rotation center of the air outlet grille has continuous mechanical contact with other components. During operation, it is very easy to generate noise due to friction, which affects the user experience. Moreover, the contact friction can also cause the rotation accuracy of the air outlet grille to be uncontrollable, affecting the adjustment of the air outlet direction. Utility Model Content

[0004] This application discloses an air conditioner that can achieve a quiet operation when the air outlet grille rotates, and improve the accuracy of air outlet direction adjustment.

[0005] To achieve the above objectives, this application discloses an air conditioner, comprising:

[0006] Cabinet unit, the cabinet unit includes:

[0007] A housing, on which an air outlet is provided;

[0008] A fixed bracket, which is fixedly mounted on the housing and located at the air outlet, includes:

[0009] A ring-shaped frame, which is arranged around the air outlet;

[0010] A radial frame, the two ends of which are respectively connected to the annular frame along the radial direction of the annular frame, so that the radial frame spans the air outlet;

[0011] An air outlet grille is rotatably mounted on the fixed bracket.

[0012] A rotary positioning assembly is disposed at the rotation center of the air outlet grille, and the air outlet grille is rotatably mounted on the fixed bracket via the rotary positioning assembly. The rotary positioning assembly includes:

[0013] The bearing, wherein the outer ring of the bearing is fixedly disposed relative to the radial bracket;

[0014] A rotating shaft is fixedly connected to the air outlet grille, the rotating shaft passes through the inner ring of the bearing, and the rotating shaft and the bearing are fixed relative to each other in the axial direction of the rotating shaft.

[0015] In this way, by using bearing support, the sliding friction between the rotating shaft and other components in the traditional structure is transformed into rolling friction, which reduces the frictional resistance when the air outlet grille rotates, effectively reduces operating noise, and achieves a quiet effect. In addition, the bearing provides stable center positioning, which keeps the rotating shaft in a precise position during rotation, avoids radial offset or axial movement of the air outlet grille, ensures the stability and reliability of the air outlet grille rotation, and thus improves the control accuracy of the air delivery angle.

[0016] This application also provides an air conditioner, wherein the radial bracket has a clearance hole for the rotating shaft to pass through, and the outer ring of the bearing is located inside the clearance hole.

[0017] Thus, the clearance hole provides a through channel for the rotating shaft, allowing it to be installed along the central axis of the air outlet. This ensures that the air outlet grille rotates precisely around the center, effectively avoiding airflow angle deviations and vibration noise caused by eccentric rotation. Furthermore, embedding the outer ring of the bearing into the clearance hole shortens the overall axial dimension of the rotation positioning assembly, making the assembly of the fixed bracket and the rotating shaft more compact and reducing space occupation. In addition, the inner wall of the clearance hole further restricts the radial displacement of the outer ring, improving the stability of the rotating shaft during rotation and reducing additional frictional losses caused by bearing wobble.

[0018] This application also provides an air conditioner, wherein the rotary positioning assembly further includes:

[0019] Mounting base, the outer ring is fixedly mounted on the mounting base, and the mounting base is snapped and fixed to the surface of the radial frame facing the air outlet grille by a snap-fit ​​structure.

[0020] In this way, the method of fixing the outer ring of the bearing can be changed from direct embedding into the radial bracket to indirect fixing through the mounting base, avoiding bearing assembly deviations caused by machining errors of the radial bracket clearance holes and improving bearing installation accuracy.

[0021] This application also provides an air conditioner, wherein a stepped portion is provided in the clearance hole, and the stepped portion and the surface of the mounting base facing the outer ring together form an annular groove, and the outer peripheral surface of the outer ring is interference-fitted with the groove wall of the annular groove.

[0022] Thus, the annular groove formed by the stepped portion and the mounting base provides dual radial and axial constraints for the outer ring of the bearing. In the radial direction, the interference fit ensures that the outer ring fits tightly against the groove wall, effectively suppressing the radial runout of the bearing under high load rotation and ensuring the rotational accuracy of the air outlet grille. In the axial direction, the end face of the stepped portion and the mounting base forms a limiting structure, restricting the axial movement of the outer ring and preventing the inner ring of the bearing from loosening due to axial displacement. Especially when the air outlet grille is frequently started and stopped or subjected to airflow impact, it can maintain the stable support state of the bearing.

[0023] This application also provides an air conditioner in which the surface of the mounting base facing the radial frame is suspended along the axial direction of the rotation axis.

[0024] In this way, axial interference between the mounting base and the air outlet grille is avoided during rotation. When the air outlet grille undergoes slight axial displacement due to the drive motor or airflow, the suspended mounting base surface can provide a buffer space to prevent direct friction between the two and generate noise. At the same time, it avoids deformation of the mounting base or jamming of the air outlet grille due to hard contact, ensuring the smoothness of the rotation process.

[0025] This application also provides an air conditioner, wherein the rotary positioning assembly further includes:

[0026] A fixing cover is fixedly disposed on the end of the rotating shaft that extends out of the clearance hole, along the axial direction of the rotating shaft, so as to limit the rotating shaft in the axial direction of the rotating shaft.

[0027] In this way, the fixed cover can effectively limit the displacement of the rotating shaft in the axial direction, avoid the axial force generated by airflow impact and motor start and stop causing the rotating shaft to move, prevent the air outlet grille from interfering and colliding with the air outlet frame, and ensure the stability and accuracy of the air delivery angle.

[0028] This application also provides an air conditioner in which, along the axial direction of the rotation axis, there is a gap between the surface of the fixed cover facing the radial frame and the radial frame.

[0029] This creates a gap between the surface of the fixed cover facing the radial frame and the radial frame, preventing direct contact and friction between the fixed cover and the radial frame due to axial displacement during rotation.

[0030] This application also provides an air conditioner, wherein a limiting structure is provided between the fixed cover and the radial frame, and the limiting structure is used to limit the rotation angle of the air outlet grille.

[0031] In this way, by limiting the rotation range of the air outlet grille through the limiting structure, the rotation angle of the air outlet grille can be controlled within a preset range, ensuring the consistency and reliability of the air supply angle.

[0032] This application also provides an air conditioner, wherein the limiting structure includes:

[0033] An arc-shaped groove is provided on the end face of the radial frame away from the air outlet grille, and the center of the arc-shaped groove coincides with the rotation center of the rotating shaft.

[0034] A limiting protrusion is disposed on the fixed cover and extends radially along the fixed cover. The limiting protrusion is movable between the two ends of the arcuate groove.

[0035] In this way, the center of the arc groove strictly coincides with the center of the rotation axis, and the limiting protrusion extends radially along the fixed cover. The two form a unique assembly relationship of "center positioning and radial fit". If the fixed cover is installed in the wrong direction (such as the limiting protrusion deviating from the corresponding position of the arc groove), the protrusion will not be able to be embedded in the groove, or it will interfere with the groove wall after being embedded. The installation error will be exposed directly through physical obstruction, avoiding the grid rotation jamming or angle loss due to the reversed direction.

[0036] This application also provides an air conditioner, wherein an elastic snap-fit ​​arm is provided at the end of the rotating shaft, and the elastic snap-fit ​​arm and the end of the rotating shaft surround to form a snap-fit ​​groove, and a snap-fit ​​boss is provided on the fixed cover. When the fixed cover is installed axially, the end of the snap-fit ​​boss squeezes the elastic snap-fit ​​arm and snaps into the snap-fit ​​groove to snap and fix the fixed cover in the snap-fit ​​groove.

[0037] In this way, when installing the fixing cover, the end of the snap-fit ​​boss squeezes the elastic snap-fit ​​arm to expand it radially. When the snap-fit ​​boss reaches the snap-fit ​​groove position, the elastic snap-fit ​​arm springs back to lock the boss in the groove. The whole process does not require the assistance of tools and can be completed with one hand, which improves the production and assembly efficiency. Attached Figure Description

[0038] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0039] Figure 1 This is a schematic diagram of an air conditioner provided in an embodiment of this application;

[0040] Figure 2 This is a schematic diagram of the fixed bracket and air outlet grille provided in the embodiments of this application;

[0041] Figure 3 This is a schematic diagram of the fixing bracket provided in an embodiment of this application;

[0042] Figure 4 yes Figure 2 The diagram shown has the air guide plate hidden.

[0043] Figure 5 yes Figure 4 Exploded view of the structure shown;

[0044] Figure 6 This is a schematic diagram of the rotation positioning structure provided in the embodiments of this application;

[0045] Figure 7 This is an exploded view of the rotary positioning structure provided in the embodiments of this application;

[0046] Figure 8 This is a schematic diagram from another perspective of the fixed bracket provided in the embodiments of this application;

[0047] Figure 9 yes Figure 2 Top view of the structure shown;

[0048] Figure 10 yes Figure 9 Sectional view at PP;

[0049] Figure 11 yes Figure 10 Enlarged view of point A in the middle;

[0050] Figure 12 This is a schematic diagram of the mounting base snapped onto the radial frame according to an embodiment of this application;

[0051] Figure 13 yes Figure 2 The top view of the structure shown is omitted, as it does not include the fixing cover and bearing.

[0052] Figure 14 yes Figure 13 Sectional view at SS;

[0053] Figure 15 yes Figure 14 Enlarged view of point B in the middle;

[0054] Figure 16 yes Figure 9 Enlarged view at point D;

[0055] Figure 17 yes Figure 3 Enlarged view of point C in the middle;

[0056] Figure 18 This is a schematic diagram of the fixing cover provided in an embodiment of this application;

[0057] Figure 19 This is a schematic diagram of the rotation axis provided in the embodiments of this application.

[0058] Explanation of main figure symbols

[0059] 1-Air conditioner;

[0060] 10-Cabinet type;

[0061] 11-House; 11a-Air outlet;

[0062] 12-Fixed bracket; 12a-Annular bracket; 12b-Radial bracket; 12c-Allowance hole; 12d-Stepped section; 12e-Annular groove;

[0063] 13-Air outlet grille; 13a-Air guide plate;

[0064] 100-Rotation positioning assembly;

[0065] 110 - Bearing; 110a - Outer ring; 110b - Inner ring;

[0066] 120 - Rotary shaft; 1201 - Flexible snap-fit ​​arm; 1201a - Snap-fit ​​groove;

[0067] 130 - Mounting base; 1301 - Snap-fit ​​structure;

[0068] 140-Fixing cover; 1401-Wire fixing part; 1402-Snap-fit ​​boss;

[0069] 150 - Limiting structure; 1501 - Arc groove; 1502 - Limiting protrusion. Detailed Implementation

[0070] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0071] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0072] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0073] Furthermore, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; 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, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0074] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, elements, or components whose specific types and structures may be the same or different, and are not intended to indicate or imply the relative importance or quantity of the indicated devices, elements, or components. Unless otherwise stated, "a plurality of" means two or more.

[0075] As mentioned in the background section, in related technologies, the rotating shaft at the rotation center of the air outlet grille has continuous mechanical contact with other components. During operation, it is very easy to generate noise due to friction, which affects the user experience. Moreover, the contact friction can also cause the rotation accuracy of the air outlet grille to be uncontrollable, affecting the adjustment of the air outlet direction.

[0076] To address the aforementioned issues, this application provides an air conditioner that employs bearing support to transform the sliding friction between the rotating shaft and other components in the traditional structure into rolling friction. This reduces the frictional resistance during the rotation of the air outlet grille, effectively reducing operating noise and achieving a quiet operation. Furthermore, the bearing provides stable center positioning, ensuring the rotating shaft maintains a precise position during rotation and preventing radial or axial displacement of the air outlet grille. This ensures the stability and reliability of the air outlet grille's rotation, thereby improving the control accuracy of the air delivery angle.

[0077] The following will describe specific embodiments and appendices. Figure 1-19 The technical solution of the air conditioner in this application will be further explained.

[0078] like Figure 1 As shown, the air conditioner 1 may include a cabinet unit 10, wherein the cabinet unit 10 is an indoor unit of the split air conditioner 1 with a floor-standing design, which is usually placed on the indoor floor, and the compressor and other refrigeration equipment are located in the outdoor unit, and the indoor unit and the outdoor unit are connected to work through pipes and lines.

[0079] like Figure 1 As shown, the cabinet air conditioner 10 may include a housing 11, on which an air outlet 11a is provided. The air outlet 11a is the outlet through which the air conditioner 1 delivers processed hot or cold air to the room. Its size, shape and position design will affect the air output effect of the air conditioner 1 and the indoor air circulation.

[0080] like Figure 1 and Figure 2 As shown, the cabinet unit 10 may also include a fixed bracket 12, which is fixedly mounted on the housing 11 and located at the air outlet 11a.

[0081] like Figure 3 As shown, the fixed bracket 12 may include a ring frame 12a, which is arranged around the air outlet 11a.

[0082] like Figure 3As shown, the fixed bracket 12 may also include a radial bracket 12b, with both ends of the radial bracket 12b connected to the annular bracket 12a along the radial direction of the annular bracket 12a, so that the radial bracket 12b spans the air outlet 11a.

[0083] like Figure 4 As shown, the cabinet unit 10 may also include an air outlet grille 13, which is rotatably mounted on the fixed bracket 12 and can rotate relative to the fixed bracket 12. Its function is to adjust the direction and angle of the air outlet, and it also plays a certain decorative and protective role for the air outlet 11a. The reciprocating rotation of the air outlet grille 13 is limited to a preset angle, which can be selected according to actual use, such as 30°, 60°, 90°, etc. The reciprocating rotation of the air outlet grille 13 within the preset angle is based on the user's intermittent adjustment, rather than continuous rotation during the operation of the cabinet unit 10.

[0084] For example, the servo motor is fixed to a specific position on the fixed bracket 12 with bolts, and a continuous tooth structure is machined along the circumference of the edge of the air outlet grille 13. The tooth shape can be an involute tooth shape to ensure the smoothness and accuracy of the transmission. A gear concentric with the output shaft of the servo motor is installed on the fixed bracket 12. The module and number of teeth of the gear match the tooth structure on the air outlet grille 13 to ensure good meshing. The gear is rotatably mounted on the fixed bracket 12 through the bearing 110. After the servo motor is started, its output shaft drives the gear on the fixed bracket 12 to rotate. Since the gear meshes with the tooth structure on the air outlet grille 13, the rotational motion of the gear is transmitted to the air outlet grille 13. Under the forward and reverse control of the servo motor, the gear also rotates in the forward and reverse directions, thereby driving the air outlet grille 13 to reciprocate within a preset angle range.

[0085] like Figure 5 and Figure 6 As shown, the cabinet unit 10 may also include a rotation positioning component 100, which is located at the rotation center of the air outlet grille 13. The air outlet grille 13 is rotatably mounted on the fixed bracket 12 via the rotation positioning component 100.

[0086] like Figure 6 and Figure 7 As shown, the rotary positioning assembly 100 may include a bearing 110, wherein the outer ring 110a of the bearing 110 is fixedly disposed relative to the radial frame 12b;

[0087] like Figure 7 As shown, the rotary positioning assembly 100 may further include a rotary shaft 120, which is fixedly connected to the air outlet grille 13. The rotary shaft 120 passes through the inner ring 110b of the bearing 110, and the rotary shaft 120 and the bearing 110 are relatively fixed in the axial direction of the rotary shaft 120.

[0088] Since the rotating shaft 120 is fixedly connected to the air outlet grille 13 and passes through the inner ring 110b of the bearing 110 and is fixed relative to the bearing 110 in the axial direction of the inner ring 110b, and the outer ring 110a of the bearing 110 is fixed relative to the radial frame 12b, when the air outlet grille 13 rotates, the rotating shaft 120 rotates with the inner ring 110b of the bearing 110 as support, driving the entire air outlet grille 13 to rotate around its rotation center, thereby changing the air outlet direction of the air outlet 11a and realizing the adjustment of the airflow direction.

[0089] Thus, by using bearing 110 for support, the sliding friction between the rotating shaft 120 and other components in the traditional structure is transformed into rolling friction, reducing the frictional resistance when the air outlet grille 13 rotates, effectively reducing operating noise and achieving a quiet operation. Furthermore, bearing 110 provides stable center positioning, ensuring that the rotating shaft 120 maintains a precise position during rotation, preventing radial offset or axial movement of the air outlet grille 13, ensuring the stability and reliability of the air outlet grille 13's rotation, and thereby improving the control accuracy of the air delivery angle. In addition, the structural design of the annular frame 12a and radial frame 12b of the fixed bracket 12 can provide stable support for the air outlet grille 13 and provide a reliable foundation for the installation of bearing 110 and rotating shaft 120, ensuring the stable operation of the entire rotating positioning assembly 100 and enhancing the overall structural stability of the air conditioner 1.

[0090] In some possible embodiments, such as Figures 8 to 11 As shown, the radial bracket 12b has a clearance hole 12c for the rotating shaft 120 to pass through, and the outer ring 110a of the bearing 110 is located inside the clearance hole 12c.

[0091] Thus, the clearance hole 12c provides a through channel for the rotating shaft 120, allowing the rotating shaft 120 to be installed along the central axis of the air outlet 11a, ensuring that the air outlet grille 13 rotates precisely around the center, effectively avoiding air delivery angle deviation and vibration noise caused by eccentric rotation. Furthermore, embedding the outer ring 110a of the bearing 110 into the clearance hole 12c can shorten the overall axial dimension of the rotation positioning assembly 100, making the assembly of the fixed bracket 12 and the rotating shaft 120 more compact and reducing space occupation. In addition, the inner wall of the clearance hole 12c further restricts the radial displacement of the outer ring 110a, improving the stability of the rotating shaft 120 during rotation and reducing additional frictional losses caused by the shaking of the bearing 110.

[0092] In some possible embodiments, such as Figure 7 and Figure 12 As shown, the rotary positioning assembly 100 may also include a mounting base 130, with the outer ring 110a fixedly mounted on the mounting base 130. The mounting base 130 is snapped and fixed to the surface of the radial frame 12b facing the air outlet grille 13 via a snap-fit ​​structure 1301.

[0093] In this way, the fixing method of the outer ring 110a of the bearing 110 can be changed from direct embedding into the radial bracket 12b to indirect fixing through the mounting base 130, avoiding the assembly deviation of the bearing 110 caused by the machining error of the radial bracket 12b clearance hole 12c, and improving the installation accuracy of the bearing 110. Secondly, compared with the traditional bolt connection, the snap-fit ​​fixing method does not require the drilling of threaded holes on the radial bracket 12b, which simplifies the machining process. At the same time, the elastic deformation capability of the snap-fit ​​structure 1301 can absorb the vibration transmitted by the rotating shaft 120, reducing the resonance noise caused by the rigid connection.

[0094] When installing the rotary positioning assembly 100, the outer ring 110a of the bearing 110 can be fixed to the mounting base 130 first, and the rotating shaft 120 can be connected to the air outlet grille 13. Then, the mounting base 130 is fixed to the clearance hole 12c of the radial frame 12b through the snap-fit ​​structure 1301 to ensure that the inner ring 110b of the bearing 110 is coaxial with the rotation center. Then, the rotating shaft 120 is inserted into the inner ring 110b of the bearing 110. In this way, the rotational vibration problem caused by center offset is solved through the pre-assembly mode. Moreover, the modular structure transforms the complex on-site assembly into standardized module docking, and the installation can be completed without professional tools, which significantly improves production efficiency.

[0095] For example, the snap-fit ​​structure 1301 can be an annular groove with a notch on the mounting base 130, and a fixing pin on the surface of the radial frame 12b, with the head of the pin being hemispherical. During installation, the notch of the mounting base 130 is aligned with the pin and inserted, and then rotated at a certain angle so that the pin is embedded in the annular groove. The axial movement of the mounting base 130 is restricted by the circumferential contour of the groove. Alternatively, the snap-fit ​​structure 1301 can have an outwardly extending elastic claw on the edge of the mounting base 130, with a barb protrusion at the end of the claw. At the same time, a groove is opened at the corresponding position of the radial frame 12b, with the groove entrance being funnel-shaped and a limiting step matching the barb inside. During installation, the elastic claw is compressed and deformed and slides into the groove. After it is in place, the claw springs back, and the barb engages with the limiting step, forming a double locking of axial and radial directions. This is not limited here.

[0096] In some possible embodiments, such as Figures 13 to 15 As shown, a stepped portion 12d is provided inside the clearance hole 12c. The stepped portion 12d and the surface of the mounting base 130 facing the outer ring 110a together form an annular groove 12e. The outer peripheral surface of the outer ring 110a is interference-fitted with the groove wall of the annular groove 12e.

[0097] Thus, the annular groove 12e formed by the step portion 12d and the mounting base 130 provides both radial and axial constraints for the outer ring 110a of the bearing 110. In the radial direction, the interference fit ensures that the outer ring 110a fits tightly against the groove wall of the annular groove 12e, effectively suppressing the radial runout of the bearing 110 under high load rotation and ensuring the rotational accuracy of the air outlet grille 13. In the axial direction, the step portion 12d and the end face of the mounting base 130 form a limiting structure 150, which restricts the axial movement of the outer ring 110a and prevents the inner ring 110b of the bearing 110 from loosening due to axial displacement. Especially when the air outlet grille 13 is frequently started and stopped or subjected to airflow impact, it can maintain the stable support state of the bearing 110.

[0098] In some possible embodiments, such as Figure 15 As shown, along the axial direction of the rotation axis 120, the surface of the mounting base 130 away from the radial frame 12b is suspended. That is, in the axial direction of the rotation axis 120, the surface of the mounting base 130 facing the air outlet grille 13 (away from the radial frame 12b) does not form rigid contact or fixed connection with any adjacent components (such as the air outlet grille 13, the housing 11), and is in a free state without support.

[0099] In this way, axial interference between the mounting base 130 and the air outlet grille 13 is avoided during rotation. When the air outlet grille 13 undergoes slight axial displacement due to the drive motor or airflow, the suspended surface of the mounting base 130 can provide a buffer space to prevent direct friction between the two and generate noise. At the same time, it avoids deformation of the mounting base 130 or jamming of the air outlet grille 13 due to hard contact, ensuring the smoothness of the rotation process.

[0100] In some possible embodiments, such as Figure 7 , Figure 10 and Figure 11 As shown, the rotary positioning assembly 100 may also include a fixing cover 140. Along the axial direction of the rotary shaft 120, the fixing cover 140 is fixedly disposed at the end of the rotary shaft 120 extending out of the clearance hole 12c, so as to limit the rotary shaft 120 in the axial direction.

[0101] In this way, the fixed cover 140 can effectively limit the displacement of the rotating shaft 120 in the axial direction, avoid the axial force generated by airflow impact and motor start and stop causing the rotating shaft 120 to move, prevent the air outlet grille 13 from interfering with the air outlet 11a frame, and ensure the stability and accuracy of the air supply angle.

[0102] In some possible embodiments, such as Figure 11 As shown, the rotating shaft 120 is a hollow rotating shaft 120.

[0103] like Figure 2As shown, the cabinet unit 10 may also include an air guide plate 13a, which is installed on the air outlet grille 13. When the air outlet grille 13 rotates relative to the fixed bracket 12, the air outlet grille 13 can drive the air guide plate 13a to rotate, thereby changing the air outlet direction of the air outlet 11a.

[0104] like Figure 11 As shown, the cabinet unit 10 may also include a motor, which is located at the rotation center of the air outlet grille 13. The first motor is connected to the air guide plate 13a and is used to drive the air guide plate 13a to swing. The wire connected to the first motor passes through the hollow part of the rotating shaft. The rotation of the motor drives the air guide plate 13a to swing around the shaft, thereby achieving precise control of the air outlet direction.

[0105] For example, a crank is fixed on the output shaft of the motor. The crank is an eccentric disk with a certain eccentricity between its center and the axis of the motor output shaft. A connecting seat is installed at one end of the air guide plate 13a near the rotating shaft 120 of the air outlet grille 13. One end of the connecting rod is connected to the eccentric hole on the crank through a pin, and the other end is connected to the connecting seat of the air guide plate 13a through a pin. In this way, when the motor output shaft rotates, it can be converted into the reciprocating swing of the connecting rod through the crank, thereby driving the air guide plate 13a to swing around its own swing axis.

[0106] like Figure 16 As shown, a wire fixing part 1401 is provided on the fixing cover 140, and the part of the rotating shaft from which the wire extends is fixed to the wire fixing part 1401.

[0107] Thus, the part of the wire extending from the rotating shaft is fixed to the wire fixing part 1401, which allows the part of the wire connected to the motor and the part of the wire fixed to the wire fixing part 1401 to remain stationary relative to the motor during the rotation of the air outlet grille 13. This prevents the wire from detaching from the motor during the rotation of the air outlet grille 13, thus maintaining the stability of the connection, reducing contact resistance, and reducing the possibility of safety hazards such as overheating and arcing caused by poor contact.

[0108] In some possible embodiments, such as Figure 11 As shown, along the axial direction of the rotation axis 120, there is a gap between the surface of the fixed cover 140 facing the radial frame 12b and the radial frame 12b.

[0109] The fixed cover 140 has a gap between its surface facing the radial frame 12b and the radial frame 12b, which prevents the fixed cover 140 and the radial frame 12b from directly contacting and rubbing against each other due to axial displacement during rotation. Especially when the air outlet grille 13 is subjected to the reaction force of airflow or when the drive motor starts and stops and causes axial movement, the gap can buffer the displacement and prevent the two from colliding with each other. In addition, the existence of the gap forms an air buffer layer between the fixed cover 140 and the radial frame 12b, which effectively blocks the vibration of the rotating shaft 120 from being transmitted to the radial frame 12b, reducing the resonance noise of the casing 11.

[0110] In this way, by suspending the surface of the mounting base 130 facing the radial frame 12b, and with the gap between the surface of the fixed cover 140 facing the radial frame 12b and the radial frame 12b, and combined with the installation method of the bearing 110, when the air outlet grille 13 rotates, the bearing 110 only bears the radial load and part of the axial force of the rotating shaft 120. During the movement, the rotating shaft 120 and the connected components (such as the air outlet grille 13) form a running state similar to "floating" due to the lack of direct rigid support contact. This allows the rotating shaft 120 to rotate in an environment without rigid constraints, reducing the influence of external interference on the rotation center, making the grille rotation more stable, and the air delivery angle control more precise.

[0111] In some possible embodiments, such as Figure 16 A limiting structure 150 is provided between the fixed cover 140 and the radial frame 12b, which is used to limit the rotation angle of the air outlet grille 13.

[0112] Thus, by limiting the rotation range of the air outlet grille 13 through the limiting structure 150, the rotation angle of the air outlet grille 13 can be controlled within a preset range, ensuring the consistency and reliability of the air supply angle.

[0113] In some possible embodiments, such as Figure 17 As shown, the limiting structure 150 may include an arc-shaped groove 1501, which is disposed on the end face of the radial frame 12b away from the air outlet grille 13, and the center of the arc-shaped groove 1501 coincides with the rotation center of the rotating shaft 120.

[0114] like Figure 18 As shown, the limiting structure 150 may also include a limiting protrusion 1502, which is disposed on the fixed cover 140 and extends radially along the fixed cover 140. The limiting protrusion 1502 is movable between the two ends of the arcuate groove 1501.

[0115] The center of the arc groove 1501 coincides with the center of the rotating shaft 120, and the limiting protrusion 1502 extends radially along the fixed cover 140. The two form a unique assembly relationship of "center positioning and radial fit". If the fixed cover 140 is installed in the wrong direction during installation (such as the limiting protrusion 1502 deviating from the corresponding position of the arc groove 1501), the protrusion will not be able to be embedded in the groove, or it will interfere with the groove wall after being embedded. The installation error will be exposed directly through physical obstruction, avoiding grid rotation jamming or angle loss due to reverse installation.

[0116] Of course, the limiting structure 150 is not limited to the above-mentioned structure. For example, the limiting structure 150 can also be a claw structure for limiting. Multiple claw structures are provided on the edge of the air outlet grille 13 along its circumferential direction. The claw structure includes a plug, a deformation area, a limiting post, and a slot. The plug is located at the end of the claw structure away from the air outlet grille 13. The deformation area is thin and made of elastic material, connecting the plug and the limiting post. The limiting post has a slot. Under the action of external force, the deformation area bends and deforms, causing the plug to insert into the slot, realizing the detachable connection between the air outlet grille 13 and the cover, while also playing a certain limiting role to prevent the air outlet grille 13 from moving excessively or falling off.

[0117] In some possible embodiments, such as Figure 18 and Figure 19 As shown, an elastic snap-fit ​​arm 1201 is provided at the end of the rotating shaft 120. The elastic snap-fit ​​arm 1201 and the end of the rotating shaft 120 form a snap-fit ​​groove 1201a. A snap-fit ​​boss 1402 is provided on the fixed cover 140. When the fixed cover 140 is installed axially, the end of the snap-fit ​​boss 1402 presses against the elastic snap-fit ​​arm 1201 and snaps into the snap-fit ​​groove 1201a to snap and fix the fixed cover 140 in the snap-fit ​​groove 1201a.

[0118] When installing the fixed cover 140, the end of the snap-fit ​​boss 1402 presses against the elastic snap-fit ​​arm 1201 to expand it radially. When the snap-fit ​​boss 1402 reaches the snap-fit ​​groove 1201a, the elastic snap-fit ​​arm 1201 springs back to lock the boss in the snap-fit ​​groove 1201a. The whole process does not require tools and can be completed with one hand, which improves production and assembly efficiency. In addition, the springback deformation of the elastic snap-fit ​​arm 1201 can generate continuous radial pressure, so that the snap-fit ​​boss 1402 and the snap-fit ​​groove 1201a fit tightly, effectively preventing the fixed cover 140 from loosening under high-speed rotation or vibration conditions of the rotating shaft 120.

[0119] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the air conditioner of this application, and are not intended to limit it. Although the air conditioner of 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.

Claims

1. An air conditioner, characterized in that, include: Cabinet unit, the cabinet unit includes: A housing, on which an air outlet is provided; A fixed bracket, which is fixedly mounted on the housing and located at the air outlet, includes: A ring-shaped frame, which is arranged around the air outlet; A radial frame, the two ends of which are respectively connected to the annular frame along the radial direction of the annular frame, so that the radial frame spans the air outlet; An air outlet grille is rotatably mounted on the fixed bracket. A rotary positioning assembly is disposed at the rotation center of the air outlet grille, and the air outlet grille is rotatably mounted on the fixed bracket via the rotary positioning assembly. The rotary positioning assembly includes: The bearing, wherein the outer ring of the bearing is fixedly disposed relative to the radial bracket; A rotating shaft is fixedly connected to the air outlet grille, the rotating shaft passes through the inner ring of the bearing, and the rotating shaft and the bearing are fixed relative to each other in the axial direction of the rotating shaft.

2. The air conditioner according to claim 1, characterized in that, The radial frame has a clearance hole for the rotating shaft to pass through, and the outer ring of the bearing is located inside the clearance hole.

3. The air conditioner according to claim 2, characterized in that, The rotary positioning component further includes: Mounting base, the outer ring is fixedly mounted on the mounting base, and the mounting base is snapped and fixed to the surface of the radial frame facing the air outlet grille by a snap-fit ​​structure.

4. The air conditioner according to claim 3, characterized in that, The clearance hole is provided with a stepped portion, and the stepped portion and the surface of the mounting base facing the outer ring together form an annular groove. The outer circumferential surface of the outer ring is interference-fitted with the groove wall of the annular groove.

5. The air conditioner according to claim 3, characterized in that, Along the axial direction of the rotation axis, the surface of the mounting base facing the radial frame is suspended.

6. The air conditioner according to claim 2, characterized in that, The rotary positioning component further includes: A fixing cover is fixedly disposed on the end of the rotating shaft that extends out of the clearance hole, along the axial direction of the rotating shaft, so as to limit the rotating shaft in the axial direction of the rotating shaft.

7. The air conditioner according to claim 6, characterized in that, Along the axial direction of the rotation axis, there is a gap between the surface of the fixed cover facing the radial frame and the radial frame.

8. The air conditioner according to claim 6, characterized in that, A limiting structure is provided between the fixed cover and the radial frame, and the limiting structure is used to limit the rotation angle of the air outlet grille.

9. The air conditioner according to claim 8, characterized in that, The limiting structure includes: An arc-shaped groove is provided on the end face of the radial frame away from the air outlet grille, and the center of the arc-shaped groove coincides with the rotation center of the rotating shaft. A limiting protrusion is disposed on the fixed cover and extends radially along the fixed cover. The limiting protrusion is movable between the two ends of the arcuate groove.

10. The air conditioner according to claim 6, characterized in that, The end of the rotating shaft is provided with an elastic snap-fit ​​arm, which forms a snap-fit ​​groove with the end of the rotating shaft. The fixed cover is provided with a snap-fit ​​protrusion. When the fixed cover is installed axially, the end of the snap-fit ​​protrusion squeezes the elastic snap-fit ​​arm and snaps into the snap-fit ​​groove to snap and fix the fixed cover in the snap-fit ​​groove.

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