Embedded air conditioner indoor unit

Abstract

The utility model provides a kind of embedded indoor unit of air conditioner, it includes shell, air deflector and first driving device.The lower part of the front side of shell is provided with air outlet.Air deflector is rotatably arranged at air outlet;Air deflector is provided with rotating hole.First driving device is arranged in shell, first driving device has rotating shaft assembly, rotating shaft assembly includes rotating part, elastic member, and telescopicly connected in rotating part, and with the synchronous rotation of rotating part telescopic shaft;Telescopic shaft is inserted into rotating hole, and drives air deflector to rotate;Elastic member is arranged between rotating part and telescopic shaft, and is configured to provide so that telescopic shaft inserts into the force of rotating hole.The utility model solves the technical problem that rotating shaft and air deflector rotating hole assembly are difficult in the prior art, to improve the purpose of embedded indoor unit of air conditioner assembly efficiency.

Description

Technical Field

[0001] This utility model relates to the field of household appliance technology, and in particular to an embedded air conditioner indoor unit. Background Technology

[0002] Currently, recessed air conditioner indoor units have air guide vanes at the air outlet, which are typically driven to rotate by a motor and a shaft. During assembly, the motor is fixed to the motor mount, and then the guide vane and shaft are assembled together so that the shaft is inserted into the rotating hole of the air guide vane. However, in actual installation, it is difficult to align the rotating hole of the air guide vane with the shaft, often requiring repeated adjustments or the application of external force to force insertion, resulting in low assembly efficiency and easy wear or even deformation of the shaft or air guide vane. Utility Model Content

[0003] In view of the above problems, this utility model is proposed to provide an embedded air conditioner indoor unit that overcomes or at least partially solves the above problems, and can solve the technical problem of difficult assembly of the air guide plate and its driving device in the prior art, thereby improving the assembly efficiency of the embedded air conditioner indoor unit.

[0004] Specifically, this utility model provides an embedded air conditioner indoor unit, comprising:

[0005] The housing has an air outlet located on its lower front side.

[0006] An air guide plate is rotatably mounted at the air outlet; the air guide plate is provided with rotating holes;

[0007] A first driving device is disposed within the housing. The first driving device has a rotating shaft assembly, which includes a rotating part, an elastic element, and a telescopic shaft that is telescopically connected to the rotating part and rotates synchronously with the rotating part. The telescopic shaft is inserted into the rotating hole and drives the air guide plate to rotate. The elastic element is disposed between the rotating part and the telescopic shaft and is configured to provide a force that causes the telescopic shaft to be inserted into the rotating hole.

[0008] Optionally, the rotating part includes a transmission shaft and a drive shaft;

[0009] The drive shaft has a first mounting hole and a second mounting hole coaxially arranged with the drive shaft; the openings of the first mounting hole and the second mounting hole are opposite.

[0010] The elastic element is disposed in the first mounting hole, and the telescopic shaft is inserted into the first mounting hole;

[0011] The drive shaft is inserted into the second mounting hole, and the drive shaft drives the telescopic shaft to rotate through the transmission shaft.

[0012] Optionally, the rotating part includes:

[0013] A sleeve having a third mounting hole extending through it along its axial direction;

[0014] A retaining ring is disposed at one end of the sleeve facing the air guide plate; a baffle is disposed at the end of the telescopic shaft away from the rotating hole; the telescopic shaft is configured to be inserted into the third mounting hole from the end of the third mounting hole away from the air guide plate, and to extend from the end of the third mounting hole near the air guide plate; the baffle is configured to contact the retaining ring to prevent the telescopic shaft from disengaging from the third mounting hole;

[0015] A drive shaft is inserted into the third mounting hole, and an elastic element is disposed in the third mounting hole and positioned between the drive shaft and the baffle. The drive shaft drives the telescopic shaft to rotate through the sleeve; or, the drive shaft drives the telescopic shaft to rotate through the sleeve and the retaining ring.

[0016] Optionally, the rotating part is provided with a positioning plate, and the housing is provided with a first stop surface and a second stop surface that cooperate with the positioning plate;

[0017] When the sleeve rotates in the first direction, one side of the positioning plate contacts the first stop surface to limit its movement; when the sleeve rotates in the second direction, the other side of the positioning plate contacts the second stop surface to limit its movement; the first direction is opposite to the second direction.

[0018] Optionally, the housing includes a front panel, and the air outlet is disposed at the lower part of the front panel;

[0019] The first stop surface is a portion of the inner surface of the front panel, and the second stop surface is a portion of the inner surface of the front panel.

[0020] The positioning plate is perpendicular to the telescopic shaft.

[0021] Optionally, the housing is provided with a perforation, through which the rotating part passes;

[0022] The first driving device also includes a motor, and the drive shaft is fixedly connected to the output shaft of the motor or integrally formed therefrom;

[0023] The motor and the air guide plate are located on both sides of the perforation.

[0024] Optionally, the front panel is further provided with an air inlet, which is located above the air outlet;

[0025] The embedded air conditioner indoor unit also includes:

[0026] A sealing plate, which is rotatably mounted at the air inlet, is used to open or close the air inlet;

[0027] The second driving device is disposed inside the housing and configured to drive the enclosed plate to rotate.

[0028] Optionally, the second driving device includes:

[0029] A drive seat having a guide groove; the drive seat is disposed within the housing;

[0030] A drive arm, which is disposed on the drive base, has a protrusion that inserts into the guide groove;

[0031] A bushing is fitted onto the protrusion and contacts the sidewall of the guide groove.

[0032] Multiple first rollers are mounted on the drive base, and the first rollers are disposed on the upper side of the drive arm and in contact with the drive arm;

[0033] Multiple second rollers are mounted on the drive base, and the second rollers are located on the underside of the drive arm and in contact with the drive arm.

[0034] Optionally, there are two guide grooves, which are respectively disposed on both sides of the drive arm; and both sides of the drive arm are provided with a plurality of protrusions, and each protrusion is provided with a bushing.

[0035] The bushing is made of POM material, the first roller is made of POM material, and the second roller is made of POM material.

[0036] Optionally, the embedded air conditioner indoor unit further includes:

[0037] A guide rail is disposed on the inner wall of the enclosed plate and extends in a direction perpendicular to the rotation axis of the enclosed plate.

[0038] A slider is mounted on the guide rail;

[0039] A connecting rod, one end of which is fixedly connected to the slider and the other end of which is rotatably connected to the front end of the drive arm; the connecting rod is inclined relative to the extension direction of the guide rail.

[0040] In the embedded air conditioner indoor unit of this invention, the ease of assembly is improved through the cooperation between the elastic element and the telescopic shaft in the rotating shaft assembly. Specifically, the preload of the elastic element enables the telescopic shaft to have axial self-adaptive capability, achieving self-adaptive alignment during the installation of the air guide plate, significantly reducing assembly difficulty and the risk of component damage.

[0041] Furthermore, this invention can increase the operational stability of the air guide plate. Specifically, the continuous thrust of the elastic element eliminates the assembly gap between the rotating shaft and the air guide plate, ensuring smooth rotation of the air guide plate without abnormal noise. During operation, the elastic element can dynamically compensate for the relative positional changes between the air guide plate and the telescopic shaft caused by thermal expansion and contraction, avoiding jamming or detachment caused by air guide plate deformation. The buffering effect of the elastic element can effectively absorb the axial movement energy of the motor output shaft, preventing the movement from being transmitted to the air guide plate and improving the system's vibration resistance.

[0042] The above and other objects, advantages and features of this utility model will become more apparent to those skilled in the art from the following detailed description of specific embodiments of this utility model in conjunction with the accompanying drawings. Attached Figure Description

[0043] The following sections will describe some specific embodiments of the present invention in a detailed manner by way of example and not limitation, with reference to the accompanying drawings. The same reference numerals in the drawings denote the same or similar parts or components. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings:

[0044] Figure 1 This is a schematic structural diagram of an embedded air conditioner indoor unit according to an embodiment of the present utility model;

[0045] Figure 2 This is a schematic structural diagram of the front panel assembly in an embedded air conditioner indoor unit according to an embodiment of the present invention;

[0046] Figure 3 yes Figure 2 A schematic enlarged view of a portion at point A in the middle;

[0047] Figure 4 This is a schematic partial structural diagram of an embedded air conditioner indoor unit according to an embodiment of the present utility model;

[0048] Figure 5 This is a schematic cross-sectional view of the first drive device and mounting base in an embedded air conditioner indoor unit according to an embodiment of the present utility model;

[0049] Figure 6 This is a schematic cross-sectional view of the first drive device and mounting base in an embedded air conditioner indoor unit according to an embodiment of the present utility model;

[0050] Figure 7 This is a schematic cross-sectional view of the rotating shaft assembly in an embedded air conditioner indoor unit according to an embodiment of the present invention;

[0051] Figure 8 This is a schematic structural diagram of the second drive device in an embedded air conditioner indoor unit according to an embodiment of the present invention;

[0052] Figure 9 This is a schematic structural diagram of the second drive device in an embedded air conditioner indoor unit according to an embodiment of the present invention;

[0053] Figure 10 This is a schematic structural diagram of the drive arm, connecting rod, and slider in an embedded air conditioner indoor unit according to an embodiment of the present invention. Detailed Implementation

[0054] The following reference Figures 1 to 10 This description pertains to an embedded air conditioner indoor unit according to an embodiment of the present invention. In this description, it should be understood that 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 indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature, that is, include one or more of that feature. In the description of the present invention, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified. When a feature "includes or contains" one or more of the features it encompasses, unless otherwise specifically described, this indicates that other features are not excluded and may be further included.

[0055] Unless otherwise expressly specified and limited, the terms "set," "install," "connect," "link," "fix," and "couple" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art should be able to understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0056] Furthermore, in the description of this embodiment, "above" or "below" the second feature can include direct contact between the first and second features, or it can include contact between the first and second features through another feature between them. That is, in the description of this embodiment, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," or "below" of the second feature can mean the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0057] In the description of this embodiment, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0058] Figure 1 This is a schematic structural diagram of an embedded air conditioner indoor unit according to an embodiment of the present invention, as shown below. Figure 1 As shown, and with reference Figures 2 to 10 This utility model provides an embedded air conditioner indoor unit 10, which includes a housing 100, an air guide plate 400, and a first driving device 500. An air outlet 120 is provided on the lower front side of the housing 100. The air guide plate 400 is rotatably disposed at the air outlet 120; a rotating hole 420 is provided on the air guide plate 400. The first driving device 500 is disposed inside the housing 100 and has a rotating shaft assembly 510. The rotating shaft assembly 510 includes a rotating part 511, an elastic element 512, and a telescopic shaft 513 that is telescopically connected to the rotating part 511 and rotates synchronously with the rotating part 511. The telescopic shaft 513 is inserted into the rotating hole 420 and drives the air guide plate 400 to rotate. The elastic element 512 is disposed between the rotating part 511 and the telescopic shaft 513, configured to provide a force that causes the telescopic shaft 513 to insert into the rotating hole 420.

[0059] like Figure 5 , Figure 6 and Figure 7 As shown, the assembly process in this embodiment is as follows: The first drive device 500 is fixed inside the housing 100, and its telescopic shaft 513 is in a naturally extended state under the preload of the elastic element 512. When installing the air guide plate 400, the air guide plate 400 is brought close to the air outlet 120, so that the rotating hole 420 of the air guide plate 400 is roughly aligned with the position of the telescopic shaft 513. Since the telescopic shaft 513 has axial telescopic capability, the telescopic shaft 513 can also be slightly pressed into the rotating part 511 when the air guide plate 400 contacts it. At the same time, the elastic element 512 provides a reverse thrust, causing the telescopic shaft 513 to automatically insert into the rotating hole 420. After the alignment is completed, the telescopic shaft 513 always maintains close contact with the rotating hole 420 under the action of the elastic element 512, without the need for manual fine adjustment.

[0060] like Figure 4 , Figure 5 and Figure 7As shown, the working process of this embodiment is as follows: When the embedded air conditioner indoor unit 10 needs to adjust the airflow direction, the first drive device 500 is activated, and the rotating part 511 drives the telescopic shaft 513 to rotate synchronously. The telescopic shaft 513 drives the air guide plate 400 to rotate around its axis through the rotating hole 420, thereby adjusting the angle of the air outlet 120. During operation, if a slight displacement occurs between the air guide plate 400 and the telescopic shaft 513 due to vibration or component deformation, the elastic element 512 can adaptively adjust the axial position of the telescopic shaft 513 to ensure that the two are always in reliable contact, preventing the air guide plate 400 from shaking or slipping.

[0061] In this embodiment, the cooperation between the elastic element 512 and the telescopic shaft 513 in the rotating shaft assembly 510 improves the ease of assembly. Specifically, the preload of the elastic element 512 enables the telescopic shaft 513 to have axial self-adaptive capability, realizing adaptive alignment during the installation of the air guide plate 400, significantly reducing assembly difficulty and the risk of component damage.

[0062] Furthermore, this embodiment can increase the operational stability of the air guide plate 400. Specifically, the continuous thrust of the elastic element 512 eliminates the assembly gap between the rotating shaft and the air guide plate 400, ensuring that the air guide plate 400 rotates smoothly without abnormal noise. During operation, the elastic element 512 can dynamically compensate for the relative positional changes between the air guide plate 400 and the telescopic shaft 513 caused by thermal expansion and contraction, avoiding jamming or detachment caused by deformation of the air guide plate 400. The buffering effect of the elastic element 512 can effectively absorb the axial movement energy of the output shaft of the motor 520, preventing the movement from being transmitted to the air guide plate 400 and improving the vibration resistance of the system.

[0063] Furthermore, this embodiment also avoids the problem of gradually increasing gaps caused by material creep or wear in traditional rigid connections, ensuring the reliability and consistency of the air guide plate 400 drive system in long-term use.

[0064] like Figures 4 to 6 As shown, in some optional embodiments of this utility model, the air guide plate 400 is provided with a mounting base 410, and a rotating hole 420 is disposed on the mounting base 410. The axial direction of the rotating hole 420 is parallel to the extension direction of the air guide plate 400. Specifically, the axial direction of the rotating hole 420 extends in the left-right direction.

[0065] like Figure 5 and Figure 6As shown, in some optional embodiments of this utility model, the rotating part 511 includes a transmission shaft 5111 and a drive shaft 5112. The transmission shaft 5111 has a first mounting hole 5113 and a second mounting hole coaxially arranged with the transmission shaft 5111; the openings of the first mounting hole 5113 and the second mounting hole are opposite. An elastic member 512 is disposed in the first mounting hole 5113, and the telescopic shaft 513 is inserted into the first mounting hole 5113. The drive shaft 5112 is inserted into the second mounting hole, and the drive shaft 5112 drives the telescopic shaft 513 to rotate through the transmission shaft 5111.

[0066] In this embodiment, the drive shaft 5112 is inserted into the second mounting hole of the transmission shaft 5111 and rigidly connected to transmit the torque of the first drive device 500. The first mounting hole 5113 of the transmission shaft 5111 is provided with an elastic element 512 and a telescopic shaft 513. The elastic element 512 is pre-tightened to extend the telescopic shaft 513.

[0067] During installation, the telescopic shaft 513 can retract into the first mounting hole 5113 under external force to adapt to the position of the air guide plate 400 rotating hole 420, and the elastic element 512 compresses and stores energy; after the telescopic shaft 513 and the rotating hole 420 are aligned, the elastic element 512 releases energy, pushing the telescopic shaft 513 to reset and extend into the rotating hole 420 and tightly abut against the inner wall of the rotating hole 420, thus achieving self-locking.

[0068] During operation, the drive shaft 5112 drives the transmission shaft 5111 and the telescopic shaft 513 to rotate synchronously. The telescopic shaft 513 continuously presses against the air guide plate 400 to eliminate axial clearance, avoid vibration and noise, and ensure efficient torque transmission.

[0069] This embodiment achieves efficient assembly, stable operation and long-term reliability of the air guide plate 400 and the first drive device 500 in a limited space through the double hole design of the drive shaft 5111, the rigid linkage between the drive shaft 5112 and the drive shaft 5111, and the dynamic compensation of the elastic element 512 and the telescopic shaft 513. This is beneficial to meeting the requirements of embedded air conditioning scenarios with strict requirements for space layout and noise control.

[0070] In some optional embodiments of this utility model, the first mounting hole 5113, the second mounting hole, and the rotating hole 420 can be polygonal holes.

[0071] In some optional embodiments of this utility model, the elastic element 512 is a spring or a rubber elastomer.

[0072] Furthermore, the cross-sections of both the telescopic shaft 513 and the drive shaft 5112 can be polygonal.

[0073] like Figure 7As shown, in some optional embodiments of this utility model, the rotating part 511 includes a sleeve 5114, a retaining ring 5115, and a drive shaft 5112. The sleeve 5114 has a third mounting hole 5117 extending through it axially. The retaining ring 5115 is disposed at one end of the sleeve 5114 facing the air guide plate 400; a baffle 516 is disposed at one end of the telescopic shaft 513 away from the rotating hole 420, and the telescopic shaft 513 is configured to be inserted into the third mounting hole 5117 from the end of the third mounting hole 5117 away from the air guide plate 400, and to extend from the end of the third mounting hole 5117 near the air guide plate 400; the baffle 516 is configured to contact the retaining ring 5115 to prevent the telescopic shaft 513 from disengaging from the third mounting hole 5117. The drive shaft 5112 is inserted into the third mounting hole 5117, and the elastic element 512 is disposed within the third mounting hole 5117, with the elastic element 512 positioned between the drive shaft 5112 and the baffle 516. The drive shaft 5112 drives the telescopic shaft 513 to rotate via the sleeve 5114. In some alternative embodiments, the drive shaft 5112 drives the telescopic shaft 513 to rotate via the sleeve 5114 and the retaining ring 5115.

[0074] In this embodiment, the retaining ring 5115 and the sleeve 5114 are integrally formed or fixedly connected. During assembly, the telescopic shaft 513 is inserted into the third mounting hole 5117 from the end of the sleeve 5114 away from the air guide plate 400; the elastic element 512 is installed in the third mounting hole 5117 and placed between the baffle 516 of the telescopic shaft 513 and the inner wall of the sleeve 5114; the drive shaft 5112 is inserted into the third mounting hole 5117 of the sleeve 5114, compressing the elastic element 512 to form a preload, causing the telescopic shaft 513 to extend outward and insert into the rotating hole 420 of the air guide plate 400, while the baffle 516 contacts the retaining ring 5115 to prevent the telescopic shaft 513 from axially dislodging.

[0075] During operation, the drive shaft 5112 drives the telescopic shaft 513 to rotate synchronously through the sleeve 5114. The elastic element 512 continuously pushes the baffle 516 of the telescopic shaft 513, so that the telescopic shaft 513 is always in close contact with the inner wall of the rotating hole 420 of the air guide plate 400, eliminating axial clearance. The retaining ring 5115 cooperates with the baffle 516 to limit the stroke of the telescopic shaft 513, prevent it from disengaging from the sleeve 5114, and ensure stable transmission.

[0076] Compared with the previous embodiment, this embodiment has the advantages of easy installation and simple structure. In addition, by setting the baffle 516 and the retaining ring 5115, the telescopic shaft 513 can be prevented from coming out of the third mounting hole 5117.

[0077] Furthermore, the cross-section of the third mounting hole can be a polygonal hole, and the cross-sections of the telescopic shaft and the drive shaft can both be polygonal.

[0078] like Figures 3 to 6As shown, in some optional embodiments of this utility model, a positioning plate 514 is provided on the rotating part 511, and a first stop surface and a second stop surface that cooperate with the positioning plate 514 are provided on the housing 100.

[0079] Specifically, the positioning plate 514 can be disposed on the outer peripheral wall of the sleeve 5114 or on the outer peripheral wall of the drive shaft 5111.

[0080] In this embodiment, by setting the positioning plate 514 and the first and second stop surfaces on the housing 100, the maximum forward and reverse rotation angles of the rotating part 511 can be limited, thereby ensuring that the air guide plate 400 rotates only within a preset angle range, and avoiding collision between the air guide plate 400 and the housing 100 or damage to the transmission components due to excessive rotation.

[0081] In some optional embodiments of this utility model, when the sleeve 5114 rotates in the first direction, one side of the positioning plate 514 contacts the first stop surface for limiting; when the sleeve 5114 rotates in the second direction, the other side of the positioning plate 514 contacts the second stop surface for limiting; the first direction is opposite to the second direction.

[0082] like Figures 1 to 4 As shown, in some optional embodiments of this utility model, the housing 100 includes a front panel 101, and an air outlet 120 is disposed on the lower part of the front panel 101. A first stop surface is a portion of the inner surface of the front panel 101, and a second stop surface is also a portion of the inner surface of the front panel 101. The positioning plate 514 is perpendicular to the telescopic shaft 513. For example, when the air guide plate extends in the left-right direction, the first stop surface and the second stop surface are located on the upper and lower sides of the rotating part 511, respectively.

[0083] In this embodiment, by directly using the inner surface of the front panel 101 as the first stop surface and the second stop surface, there is no need to add additional independent limiting components, which simplifies the structure of the housing 100 and reduces the processing cost.

[0084] Furthermore, the first stop surface and the second stop surface are integrated into the inner surface of the front panel 101 where the air outlet 120 is located, which is highly compatible with the rotation space of the air guide plate 400, avoiding the occupation of additional lateral space, and is especially suitable for the compact layout inside the embedded air conditioner.

[0085] like Figure 3 As shown, in some optional embodiments of this utility model, the housing 100 is provided with a through hole, through which the rotating part 511 passes. The first driving device 500 also includes a motor 520, and the drive shaft 5112 is fixedly connected to or integrally formed with the output shaft of the motor 520. The motor 520 and the air guide plate 400 are located on both sides of the through hole.

[0086] Specifically, the housing 100 has a mounting portion 1011, and a through hole is formed within the mounting portion 1011. The through hole and the rotating hole are coaxially arranged. In this embodiment, by providing the mounting portion 1011, the installation stability of the rotating portion 511 can be increased. The through hole serves as a connection channel between the motor 520 and the air guide plate 400 side. After the rotating portion 511 passes through, only one side of the motor 520 needs to be fixed, simplifying the assembly process.

[0087] like Figure 1 As shown, in some optional embodiments of this utility model, an air inlet 110 is further provided on the front panel 101, and the air inlet 110 is located above the air outlet 120. The embedded air conditioner indoor unit 10 also includes a sealing plate 300 and a second driving device 200. The sealing plate 300 is rotatably mounted at the air inlet 110 and is used to open or close the air inlet 110. The second driving device is disposed in the housing 100 and configured to drive the sealing plate 300 to rotate.

[0088] In this embodiment, by providing a second driving device 200, it is possible to effectively prevent the sealing plate 300 from getting stuck during the opening or closing of the air inlet 110.

[0089] like Figure 2 , Figure 8 and Figure 9 As shown, in some optional embodiments of this utility model, the second driving device 200 includes a driving base 210, a driving arm 220, a bushing 222, a plurality of first rollers 230, and a plurality of second rollers 240. The driving base 210 is disposed within the housing 100; the driving base 210 has a guide groove 211. The driving arm 220 is disposed on the driving base 210, and has a protrusion 221 that inserts into the guide groove 211; the bushing 222 is fitted onto the protrusion 221, and the bushing 222 contacts the side wall of the guide groove 211. The plurality of first rollers 230 are mounted on the driving base 210, and the first rollers 230 are disposed on the upper side of the driving arm 220 and contact the driving arm 220; the plurality of second rollers 240 are mounted on the driving base 210, and the second rollers 240 are disposed on the lower side of the driving arm 220 and contact the driving arm 220. Specifically, the first roller 230 and the second roller 240 are located on opposite sides of the drive arm 220, and the guide groove 211 and the protrusion 221 are located on the other side of the drive arm 220.

[0090] When the drive unit 200 is running, the drive arm 220 drives the protrusion 221 to move linearly along the guide groove 211 of the drive seat 210; the bushing 222 forms a sliding friction guide with the side wall of the guide groove 211, while the first and second roller groups arranged symmetrically on both sides dynamically constrain the attitude of the drive arm 220 through rolling contact, forming a "sliding + rolling" composite guidance mechanism. The rollers absorb vibration and correct offset during the movement of the drive arm 220, ensuring that the drive arm 220 moves smoothly in three-dimensional space, and finally efficiently transmits power to the closed plate 300.

[0091] When the second drive device 200 of this embodiment is running, the drive arm 220 slides along the guide groove 211 of the drive seat 210 via the protrusion 221. The first roller 230 and the second roller 240 clamp the drive arm 220 from above and below. The bushing 222 contacts the side wall of the guide groove 211, realizing the low-friction, high-precision linear-rotational motion conversion of the drive arm 220. This drives the sealing plate 300 to smoothly open and close the air inlet, ensuring long-term operation without jamming, low wear, and a compact and durable structure.

[0092] In some optional embodiments of this utility model, there are two guide grooves 211, respectively disposed on both sides of the drive arm 220; and multiple protrusions 221 are disposed on both sides of the drive arm 220, with a bushing 222 disposed on each protrusion 221. In this embodiment, the combination of the symmetrically arranged double guide grooves 211 and multiple protrusions 221-shoulder sleeves 222 on both sides of the drive arm 220 forms a multi-node distributed guide structure, improving the force balance of the drive arm 220; by having multiple protrusions 221 share the motion load, the contact stress between a single bushing 222 and the guide groove 211 is reduced, reducing frictional loss caused by off-center loading; and by the synchronous constraint between the double bushings 222 and the roller assembly, the guiding accuracy of the linear motion of the drive arm 220 is enhanced, avoiding trajectory deviation caused by unilateral wear.

[0093] In some optional embodiments of this utility model, the bushing 222, the first roller 230, and the second roller 240 are all made of POM material. POM (Polyoxymethylene) is a high-density, highly crystalline thermoplastic engineering plastic, often referred to as "metal among plastics" or "plastic steel" due to its properties being close to those of metals. In this embodiment, since the bushing 222, the first roller 230, and the second roller 240 are all made of POM material, and POM material has the characteristics of low coefficient of friction, high wear resistance, and self-lubrication, this embodiment can extend the life of the device and maintain smooth movement, effectively avoiding jamming or trajectory deviation problems caused by material wear.

[0094] like Figure 2 and Figure 10As shown, in some optional embodiments of this utility model, the embedded air conditioner indoor unit 10 further includes a guide rail 310, a slider 421, and a connecting rod 422. The guide rail 310 is disposed on the inner wall of the enclosed plate 300 and extends in a direction perpendicular to the rotation axis of the enclosed plate 300. The slider 421 is disposed on the guide rail 310; one end of the connecting rod 422 is fixedly connected to the slider, and the other end is rotatably connected to the front end of the drive arm 220; the connecting rod 422 is inclined relative to the extension direction of the guide rail 310.

[0095] Specifically, the guide rail 310 has a groove, and the slider 421 is located within the groove. When the air conditioner is turned on, the drive arm 220 moves from the inside to the outside along the housing 100, driving the slider 421 to slide along the guide rail 310 via the connecting rod 422, thereby driving the sealing plate 300 to rotate around its rotation axis to open the air inlet 110. When the air conditioner is turned off, the slider 421 drives the drive arm 220 to move in the opposite direction, and the connecting rod 422 drives the slider 421 to slide in the opposite direction along the guide rail 310, pulling the sealing plate 300 back to the position where it completely blocks the air inlet 110.

[0096] This embodiment utilizes the lever effect of the inclined connecting rod 422 to optimize force transmission, continuously pressing the slider 421 against the inner wall of the guide rail 310 groove, avoiding gaps between the slider 421 and the groove, reducing jamming, and improving motion smoothness.

[0097] like Figure 8 and Figure 9 As shown, in some optional embodiments of this utility model, the second driving device 200 further includes a drive motor 252, a gear 251, and a rack. The drive motor 252 is mounted on the drive base 210; the gear 251 is disposed on the output shaft of the drive motor 252; the rack is disposed on the drive arm 220, and the gear 251 and the rack mesh. In this embodiment, the drive motor 252 directly drives the arm 220 through the meshing of the gear 251 and the rack, thereby improving transmission efficiency and motion synchronization.

[0098] Therefore, those skilled in the art should recognize that although many exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications conforming to the principles of the present invention can be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should be understood and recognized as covering all such other variations or modifications.

Claims

1. An embedded air conditioner indoor unit, characterized by, The application relates to an embedded air conditioner indoor unit. The shell is provided with an air outlet at the lower front side; A guide vane is rotatably arranged at the air outlet and provided with a rotating hole; A first driving device is arranged in the shell and has a rotating shaft assembly, which comprises a rotating part, an elastic member and a telescopic shaft telescopically connected to the rotating part and synchronously rotating with the rotating part; the telescopic shaft is inserted into the rotating hole and drives the guide vane to rotate; the elastic member is arranged between the rotating part and the telescopic shaft and configured to provide a force for inserting the telescopic shaft into the rotating hole.

2. The embedded air conditioner indoor unit according to claim 1, wherein The rotating part comprises a transmission shaft and a driving shaft; The transmission shaft is provided with a first mounting hole and a second mounting hole coaxially arranged on the transmission shaft; the first mounting hole and the second mounting hole are oppositely arranged; The elastic member is arranged in the first mounting hole, and the telescopic shaft is inserted into the first mounting hole; The driving shaft is inserted into the second mounting hole, and the driving shaft drives the telescopic shaft to rotate through the transmission shaft.

3. The embedded air conditioner indoor unit according to claim 1, wherein The rotating part comprises: A sleeve provided with a third mounting hole penetrating along the axial direction of the sleeve; A stop ring arranged at one end of the sleeve facing the guide vane; one end of the telescopic shaft away from the rotating hole is provided with a stop plate; the telescopic shaft is configured to be inserted into the third mounting hole from one end of the third mounting hole away from the guide vane and to be extended from one end of the third mounting hole close to the guide vane; the stop plate is configured to be in contact with the stop ring to prevent the telescopic shaft from being separated from the third mounting hole; A driving shaft is inserted into the third mounting hole, the elastic member is arranged in the third mounting hole and between the driving shaft and the stop plate; the driving shaft drives the telescopic shaft to rotate through the sleeve; or the driving shaft drives the telescopic shaft to rotate through the sleeve and the stop ring.

4. The embedded air conditioner indoor unit according to claim 3, wherein The rotating part is provided with a positioning plate, and the shell is provided with a first stop surface and a second stop surface matched with the positioning plate; When the sleeve rotates in a first direction, one side of the positioning plate is in contact with the first stop surface for limiting; when the sleeve rotates in a second direction, the other side of the positioning plate is in contact with the second stop surface for limiting; the first direction is opposite to the second direction.

5. The embedded air conditioner indoor unit according to claim 4, wherein The shell comprises a front panel, and the air outlet is arranged at the lower part of the front panel; The first stop surface is a partial area on the inner surface of the front panel, and the second stop surface is a partial area on the inner surface of the front panel; The positioning plate is perpendicular to the telescopic shaft.

6. The embedded air conditioner indoor unit according to claim 2 or 3, wherein The shell is provided with a through hole, and the rotating part penetrates through the through hole. The first driving device further comprises a motor, and the driving shaft is fixedly connected with or integrally formed with an output shaft of the motor; The motor and the air deflector are located on two sides of the perforation. 7.The indoor unit of the embedded air conditioner according to claim 5, characterized in that, The front panel is further provided with an air inlet, and the air inlet is located on the upper side of the air outlet; The indoor unit of the embedded air conditioner further comprises: A closing plate is rotatably installed at the air inlet for opening or closing the air inlet; A second driving device is arranged in the shell and configured to drive the closing plate to rotate. 8.The indoor unit of the recessed air conditioner according to claim 7, characterized in that, The second driving device comprises: A driving seat having a guide groove, wherein the driving seat is arranged in the shell; A driving arm is arranged on the driving seat, and the driving arm has a protruding column inserted into the guide groove; A shaft sleeve is sleeved on the protruding column, and the shaft sleeve is in contact with the side wall of the guide groove; A plurality of first rollers are installed on the driving seat, and the first rollers are arranged on the upper side of the driving arm and in contact with the driving arm; A plurality of second rollers are installed on the driving seat, and the second rollers are arranged on the lower side of the driving arm and in contact with the driving arm. 9.The indoor unit of the embedded air conditioner according to claim 8, characterized in that, The guide groove is provided on both sides of the driving arm, and a plurality of protruding columns are arranged on both sides of the driving arm, and the shaft sleeve is arranged on each protruding column; The shaft sleeve is made of POM material, the first roller is made of POM material, and the second roller is made of POM material. 10.The indoor unit of the embedded air conditioner according to claim 8, characterized in that, Further comprising: A guide rail is arranged on the inner wall of the closing plate and extends in a direction perpendicular to the rotation axis of the closing plate; A sliding block is arranged on the guide rail; A connecting rod is fixedly connected at one end with the sliding block and rotatably connected at the other end with the front end of the driving arm, and the connecting rod is obliquely arranged relative to the extension direction of the guide rail.

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