An air conditioner indoor unit

Abstract

The application discloses an air conditioner indoor unit, which comprises a casing, a volute, a heat exchange fan and a rotary air supply mechanism. The rotary air supply mechanism is arranged at an air outlet of the casing and comprises a base, a rotary frame, a driving motor, a first conductive part and a second conductive part. The base is connected with the casing, the rotary frame is rotatably arranged in the base, a wind guide part is arranged in the rotary frame, the driving motor is arranged in the rotary frame and used for driving the wind guide part to swing, the first conductive part is arranged in the rotary frame and electrically connected with the driving motor, the second conductive part is arranged in the base and electrically connected with the first conductive part, the second conductive part is electrically connected with at least one of a controller and a power supply, at least one of the first conductive part and the second conductive part is a ring conductor, and the first conductive part rotates relative to the second conductive part and is in sliding fit when the first conductive part rotates with the rotary frame. The relative rotation and sliding fit of the first conductive part and the second conductive part can avoid repeated twisting of a connecting wire.

Description

Technical Field

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

[0002] In the field of air conditioning indoor units, to achieve flexible adjustment of airflow direction, a rotatable air supply mechanism is usually installed at the air outlet of the unit casing. This mechanism generally consists of a driving component (such as a motor) and an airflow guiding component (such as an air guide plate). The motor, as the power source, can drive the air guide plate to swing around a specific axis, thereby changing the direction of the airflow flowing out of the air outlet to meet the user's needs for air supply to different areas of the room and improve the comfort of air conditioning use.

[0003] In related technologies, because the motor needs to rotate along with the entire rotating air supply mechanism, the connecting wires (such as power lines and signal lines) connected to the motor will repeatedly twist with the motor's rotation. However, under the action of repeated twisting, the metal wires inside the connecting wires are prone to breakage. After the metal wires break, it will directly lead to the interruption of the motor's power supply or the failure of signal transmission, which will cause the rotating air supply mechanism to malfunction, seriously affecting the air supply function of the air conditioner, causing inconvenience to users, and also increasing the maintenance cost and failure rate of the indoor unit of the air conditioner. Utility Model Content

[0004] In view of the above-mentioned shortcomings in the related technologies, this application provides an air conditioner indoor unit to solve the problem that the connecting wires will repeatedly twist as the motor rotates.

[0005] To address the aforementioned technical problems, in a first aspect, this application provides an air conditioner indoor unit, which includes: The housing is provided with an air inlet and an air outlet; A volute is disposed inside the housing. The volute has a heat exchange air duct inside. The heat exchange air duct has an air inlet end and an air outlet end. The air inlet end is connected to the air inlet port, and the air outlet end is connected to the air outlet port. A heat exchange fan is disposed in the heat exchange duct. The heat exchange fan is used to drive air flow by rotating itself, so that the air enters the heat exchange duct through the air inlet and the air inlet end, and the air flows out through the air outlet and the air outlet. A rotary air supply mechanism, located at the air outlet, includes: The base is connected to the housing; A rotating frame is rotatably mounted on the base, and multiple swingable air guides are arranged sequentially and at intervals within the rotating frame; A drive motor is provided on the rotating frame and is used to drive the plurality of air guides to swing, so that the plurality of air guides change the direction of the air flowing out of the air outlet; A first conductive element is disposed on the rotating frame and electrically connected to the drive motor; A second conductive element is disposed on the base and electrically connected to the first conductive element. The second conductive element is electrically connected to at least one of the controller and the power supply, so that the controller sends a control signal to the drive motor and the power supply supplies power to the drive motor. Wherein, at least one of the first conductive element and the second conductive element is a ring conductor, the central axis of the ring conductor is collinear with the rotation axis of the rotating frame, and when the first conductive element rotates with the rotating frame around the rotation axis, the first conductive element and the second conductive element rotate relative to each other and slide together, so that the first conductive element and the second conductive element are electrically connected.

[0006] With this configuration, since the rotating frame is rotatably mounted on a base connected to the housing, and since the electrically connected drive motor and the first conductive component are both mounted on the rotating frame, when the rotating frame rotates around the rotation axis, the drive motor and the first conductive component will rotate together with the rotating frame.

[0007] Furthermore, since at least one of the first conductive element and the second conductive element located on the base is a ring-shaped conductor, and since the first conductive element rotates relative to and slides with the second conductive element when the rotating frame rotates around the rotation axis, when the drive motor and the first conductive element are electrically connected through connecting wires, and the second conductive element is electrically connected to the controller and the power supply through relative rotation and sliding engagement with the second conductive element, the electrical connection between the first and second conductive elements can be guaranteed when the drive motor and the first conductive element rotate together with the rotating frame. At the same time, the connecting wires are prevented from repeatedly twisting due to the rotation of the drive motor, thus preventing the metal wires inside the connecting wires from breaking. This ensures the electrical connection between the drive motor and the controller and the power supply, and consequently, ensures the normal operation of the rotating air supply mechanism. Therefore, the normal operation of the air supply function of the indoor unit of the air conditioner can be guaranteed, making it convenient for users and reducing the maintenance cost and failure rate of the indoor unit.

[0008] Optionally, the second conductive element is the annular conductor, and the first conductive element includes an elastic arm that is in elastic contact with the second conductive element.

[0009] This configuration, on the one hand, sets the second conductive element as a ring-shaped conductor, which ensures relative rotation and sliding engagement between the first and second conductive elements when the first conductive element rotates with the rotating frame, thereby preventing repeated twisting of the connecting wire.

[0010] On the other hand, the elastic contact between the elastic arm and the second conductive component has several advantages. First, the elastic contact effectively offsets any assembly errors, vibrations, or slight positional shifts that may occur between the first and second conductive components during rotation, ensuring a stable and reliable electrical connection between them. This prevents power outages to the drive motor or signal transmission failures due to poor contact, thus guaranteeing the continuous and stable operation of the rotary air supply mechanism. Second, compared to rigid contact, the elastic contact significantly reduces frictional losses during relative rotation of the first and second conductive components, reducing component wear and extending their service life. Simultaneously, the elastic arm buffers the impact forces during rotation, reducing the risk of component damage and further enhancing the reliability of the rotary air supply mechanism, while reducing maintenance frequency and costs.

[0011] Optionally, the first conductive element further includes an annular portion, the central axis of which is collinear with the rotation axis, and the annular portion and the annular conductor are in a clearance fit in the radial direction of the annular conductor; The elastic arm is connected to the annular portion, and the annular portion is electrically connected to the drive motor.

[0012] This design ensures that, on the one hand, the annular portion provides precise radial positioning and guidance for the first conductive component, preventing radial offset when the rotating frame drives the first conductive component to rotate. This ensures that the elastic arm can always maintain stable contact with the second conductive component, structurally guaranteeing the stability of the contact between the elastic arm and the second conductive component and preventing contact failure due to offset.

[0013] On the other hand, the radial clearance fit between the annular part and the annular conductor not only provides reasonable space for the relative movement of the annular part and the annular conductor during rotation, avoiding wear caused by radial friction, but also, in conjunction with the elastic contact of the elastic arm, further buffers vibration and position deviation during rotation. This provides double protection for the stability of the electrical connection between the first and second conductive parts, ensuring the continuous reliability of power supply and signal transmission for the drive motor, and ultimately improving the operational stability and overall durability of the rotary air supply mechanism, reducing the risk of failure.

[0014] Optionally, a mounting groove is provided on the outer periphery of the annular portion, one end of the elastic arm is connected to the groove wall of the mounting groove, and the other end extends in the mounting groove. A contact protrusion is provided on the elastic arm, which protrudes outward toward the outside of the mounting groove and contacts the second conductive element.

[0015] This design, on the one hand, restricts the elastic arm through the mounting groove, preventing the elastic arm from shifting position during the rotation of the rotating frame. It ensures that the contact protrusion is always in the preset position of contact with the second conductive element in the circumferential direction of the annular part, thus structurally guaranteeing the stability of the contact fit and preventing contact failure caused by the misalignment of the elastic arm.

[0016] On the other hand, by contacting the protrusion, it is not only easier for the elastic arm to contact the second conductive element, but also the contact area between the elastic arm and the second conductive element can be reduced, thereby reducing the frictional resistance and wear during relative rotation and extending the service life.

[0017] Optionally, the annular portion is provided with one of the elastic arms; or, The annular portion is provided with a plurality of elastic arms, which are evenly distributed along the circumference of the annular portion.

[0018] With this configuration, an elastic arm is provided on the annular portion, which not only enables elastic contact between the first conductive element and the second conductive element, but also simplifies the structure of the first conductive element and facilitates its processing and manufacturing.

[0019] Multiple elastic arms evenly distributed circumferentially are arranged on the annular portion, forming multi-point uniform contact in the circumferential direction of the annular portion. This significantly improves the redundancy and stability of the electrical connection between the first and second conductive components. Thus, even if individual elastic arms experience slight wear or poor contact, the remaining elastic arms can still ensure normal electrical connection, effectively reducing the risk of single-point failure. Simultaneously, multi-point uniform contact disperses friction and contact pressure during relative rotation, reducing wear on individual elastic arms and extending the overall component's service life.

[0020] Optionally, multiple first conductive elements are provided, and the annular portions of the multiple first conductive elements are arranged sequentially at intervals along their own radial direction, and a gap is formed between any two adjacent first conductive elements for inserting a second conductive element. The second conductive element is provided in multiple ways, and the multiple second conductive elements are arranged sequentially at intervals along their own radial direction, and a gap is formed between any two adjacent second conductive elements to allow one first conductive element to be inserted.

[0021] This configuration, on the one hand, allows for precise radial positioning and guidance of the first conductive component through the alternating insertion of the first and second conductive components, thereby further preventing radial offset when the rotating frame drives the first conductive component to rotate, and further ensuring that the elastic arm remains in stable contact with the second conductive component.

[0022] On the other hand, the cooperation of multiple sets of conductive components can also improve the redundancy of the overall electrical connection. Even if a certain set of conductive components has poor contact, the other sets of conductive components can still work normally, effectively reducing the risk of the rotary air supply mechanism stopping due to a single conductive circuit failure.

[0023] Optionally, a portion of the plurality of the first conductive elements may be a first signal element, and another portion may be a first power supply element; A portion of the plurality of second conductive elements are second signal elements, and another portion are second power supply elements. The second signal elements are electrically connected to the first signal elements and the controller, and the second power supply elements are electrically connected to the first power supply elements and the power supply.

[0024] This configuration allows for complete separation of the power supply circuit and signal circuit required by the drive motor. This effectively prevents current fluctuations in the power supply circuit from interfering with the signal circuit, prevents control signal distortion, and ensures that the controller can accurately send commands such as swing angle adjustment and start / stop to the drive motor. At the same time, it also prevents the signal circuit from affecting the power supply circuit, ensuring the stability of the power supply to the drive motor.

[0025] In addition, the complete separation of the power supply circuit and the signal circuit makes it easier to quickly locate faults during subsequent maintenance (such as distinguishing whether the problem is in the signal circuit or the power supply circuit), thereby reducing maintenance difficulty and cost, and fully ensuring the precise control and stable operation of the rotary air supply mechanism.

[0026] Optionally, one of the annular portion and the annular conductor has a positioning post on its radially inner side, and the other has a positioning cylinder on its radially inner side for the positioning post to be inserted into. The central axes of both the positioning post and the positioning cylinder are collinear with the rotation axis, and the positioning post and the positioning cylinder are rotatably engaged.

[0027] With this configuration, the positioning post and positioning cylinder can provide precise coaxial positioning of the annular part and the annular conductor in the radial direction, further ensuring that the two always rotate synchronously around the rotation axis. This further avoids misalignment of the contact position between the first conductive element and the second conductive element due to radial offset, ensuring that the elastic arm and the second conductive element can always be stably attached from the structural source, preventing the electrical connection from being interrupted.

[0028] Optionally, the base is further provided with a central bearing, the central bearing including an inner ring, the central axis of the inner ring being collinear with the rotation axis; The rotating frame is provided with a mounting cylinder, the central axis of the mounting cylinder is collinear with the rotation axis, the mounting cylinder has a closed space, and the drive motor is disposed in the closed space; a central column is provided at one axial end of the mounting cylinder, the central axis of the central column is collinear with the rotation axis, and the first conductive element is disposed at the end of the central column opposite to the mounting cylinder; The central column passes through the inner ring of the bearing and is fixedly fitted with the inner ring of the bearing.

[0029] This configuration serves several purposes. First, the cooperation between the central column and the central bearing provides high-precision, low-friction radial positioning for the rotation of the rotating frame. This ensures that the rotating frame drives the drive motor and the first conductive component to rotate smoothly around the rotation axis. Second, it avoids misalignment between the first and second conductive components due to rotational deviation. Third, it significantly reduces frictional resistance and component wear during rotation, extends the overall service life of the rotating air supply mechanism, and ensures stable and reliable operation of the rotating air supply mechanism.

[0030] On the other hand, the enclosed space of the mounting cylinder can isolate the drive motor from the external environment, effectively preventing dust and moisture, and avoiding the intrusion of dust or moisture that could cause drive motor failure.

[0031] Optionally, the rotary air supply mechanism further includes a linkage component, which is connected to and rotatably engages with the plurality of air guide components. The drive motor has a rotating output shaft, which is connected to one of the air guides. The drive motor is used to drive the air guide to swing through the rotating output shaft, so that the air guide drives the other air guides to swing through the linkage.

[0032] This configuration allows all air guide components to swing in tandem with a single drive motor, eliminating the need for a separate drive motor for each component. This significantly reduces the number of motors and other parts, simplifies the overall structure of the rotary air delivery mechanism, lowers production and assembly costs and equipment weight, and reduces potential points of failure.

[0033] On the other hand, the linkage design of the linkage can strictly ensure that the swing of multiple air guides is completely synchronized, avoiding the action deviation that may occur due to the independent control of multiple motors, and ensuring the consistency of airflow guidance. In addition, the cooperation between the drive motor and the linkage can simplify the control logic of the controller, eliminating the need for complex synchronous coordination control of multiple motors, reducing the difficulty of developing the control program and the operating load. At the same time, when it is necessary to adjust the swing parameters of the air guides, the overall adjustment can be achieved through a single drive motor, making the operation more convenient and comprehensively improving the operational stability, economy and control convenience of the rotary air supply mechanism. Attached Figure Description

[0034] 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.

[0035] Figure 1 This is a front view of an indoor air conditioning unit provided in an embodiment of this application; Figure 2 A rear view of an indoor air conditioning unit provided in an embodiment of this application; Figure 3 for Figure 1 Sectional view along the middle AA direction; Figure 4 A schematic diagram of the rotary air supply mechanism provided in the embodiments of this application; Figure 5 An exploded view of the rotary air supply mechanism provided in the embodiments of this application; Figure 6 for Figure 4 Sectional view along the BB direction; Figure 7 A schematic diagram of the second conductive element provided in an embodiment of this application; Figure 8 A schematic diagram of the first conductive element provided in an embodiment of this application; Figure 9 for Figure 6 Enlarged view of point C in the middle; Figure 10 for Figure 4 A sectional view along the DD direction.

[0036] Explanation of reference numerals in the attached figures: 1-Casing; 11-Air inlet; 12-Air outlet; 2-Volume; 21-Heat exchange air duct; 211-Air inlet; 212-Air outlet; 3-Heat exchange fan; 4-Rotary air supply mechanism; 41-Base; 411-Base body; 412-Support part; 413-Mounting part; 4131-Mounting section; 4132-Connecting section; 42-Rotating frame; 421-Mounting cylinder; 4211-Enclosed space; 422-Central column; 43-Drive motor; 431-Rotating output shaft; 44-First conductive element; 441-Elastic arm; 4411-Contact protrusion; 442-Annular part; 4421-Mounting groove; 45-Second conductive element; 46-Air guide element; 47-Positioning column; 48-Positioning cylinder; 49-Central bearing; 410-Linking element; 420-Rotating frame drive assembly; 4201-Rotary motor; 4202-Drive gear; 4203-Gear ring. Detailed Implementation

[0037] 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.

[0038] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "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.

[0039] 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.

[0040] 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.

[0041] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, components, or parts (which may be the same or different in specific type and construction), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, components, or parts. Unless otherwise stated, "a plurality of" means two or more.

[0042] As described in the background section of this application, in the field of air conditioning indoor units, to achieve flexible adjustment of airflow direction, a rotatable air supply mechanism is usually installed at the air outlet of the unit casing. This mechanism generally consists of a driving component (such as a motor) and an airflow guiding component (such as an air guide plate). The motor, as a power source, can drive the air guide plate to swing around a specific axis, thereby changing the direction of the airflow flowing out of the air outlet to meet the user's needs for air supply to different areas of the room and improve the comfort of air conditioning use.

[0043] In related technologies, because the motor needs to rotate along with the entire rotating air supply mechanism, the connecting wires (such as power lines and signal lines) connected to the motor will repeatedly twist with the motor's rotation. However, under the action of repeated twisting, the metal wires inside the connecting wires are prone to breakage. After the metal wires break, it will directly lead to the interruption of the motor's power supply or the failure of signal transmission, which will cause the rotating air supply mechanism to malfunction, seriously affecting the air supply function of the air conditioner, causing inconvenience to users, and also increasing the maintenance cost and failure rate of the indoor unit of the air conditioner.

[0044] In view of the above-mentioned problems, this application provides an air conditioner indoor unit to solve the problem that the connecting wires will repeatedly twist as the motor rotates in the related technology.

[0045] The technical solution of this application will be further described below with reference to specific embodiments and accompanying drawings: In some alternative embodiments, such as Figure 1 , Figure 2 as well as Figure 3 As shown, the indoor unit of the air conditioner includes a casing 1, a volute 2, and a heat exchange fan 3. The casing 1 is provided with an air inlet 11 and an air outlet 12. The volute 2 is located inside the casing 1 and has a heat exchange air duct 21 inside. The heat exchange air duct 21 has an air inlet end 211 and an air outlet end 212. The air inlet end 211 is connected to the air inlet 11, and the air outlet end 212 is connected to the air outlet 12.

[0046] The heat exchange fan 3 is located inside the heat exchange duct 21. The heat exchange fan 3 is used to drive the air flow by rotating itself, so that the air enters the heat exchange duct 21 through the air inlet 11 and the air inlet end 211, and the air flows out through the air outlet end 212 and the air outlet 12.

[0047] With this configuration, on the one hand, the heat exchange duct 21 can form sufficient heat exchange space inside the air conditioner indoor unit, ensuring that the air entering the heat exchange duct 21 through the air inlet 11 and the air inlet end 211 can fully contact the heat exchange components, ensuring that the air can fully complete the cooling or heating process, thereby improving the overall heat exchange efficiency of the air conditioner indoor unit and making the delivered air temperature more in line with user needs.

[0048] On the other hand, the heat exchange fan 3 generates airflow driving force through its own rotation, which can effectively break the limitations of natural air flow and force air flow, thereby ensuring that the indoor unit of the air conditioner continuously obtains sufficient air for processing and ensures that the indoor unit of the air conditioner delivers sufficient air to the outside.

[0049] In some alternative embodiments, such as Figure 3 and Figure 4 As shown, the indoor unit of the air conditioner also includes a rotating air supply mechanism 4, which is located at the air outlet 12, and as... Figure 4 , Figure 5 as well as Figure 6 As shown, the rotary air supply mechanism 4 includes a base 41, a rotating frame 42, a drive motor 43, a first conductive element 44, and a second conductive element 45. The base 41 is connected to the housing 1. The rotating frame 42 is rotatably mounted on the base 41, and multiple swingable air guides 46 are sequentially spaced within the rotating frame 42. The drive motor 43 is located on the rotating frame 42 and drives the multiple air guides 46 to swing, thereby changing the direction of airflow from the outlet 12.

[0050] The first conductive element 44 is disposed on the rotating frame 42 and electrically connected to the drive motor 43. The second conductive element 45 is disposed on the base 41 and electrically connected to the first conductive element 44. The second conductive element 45 is electrically connected to at least one of the controller and the power supply, so that the controller sends a control signal to the drive motor 43 and the power supply supplies power to the drive motor 43.

[0051] In this embodiment, at least one of the first conductive element 44 and the second conductive element 45 is a ring-shaped conductor. The central axis of the ring-shaped conductor is collinear with the rotation axis of the rotating frame 42. When the first conductive element 44 rotates with the rotating frame 42 around the rotation axis, the first conductive element 44 and the second conductive element 45 rotate relative to each other and slide together, so that the first conductive element 44 and the second conductive element 45 are electrically connected.

[0052] With this configuration, since at least one of the first conductive element 44 and the second conductive element 45 located on the base 41 is a ring-shaped conductor, and since the first conductive element 44 rotates relative to the second conductive element 45 and slides in contact with it as the rotating frame 42 rotates around the rotation axis, when the drive motor 43 and the first conductive element 44 are electrically connected, and the second conductive element 45 is electrically connected to the controller and power supply via connecting wires, when the drive motor 43 and the first conductive element 44 rotate together with the rotating frame 42, the relative rotation and sliding contact between the first conductive element 44 and the second conductive element 45 ensures the electrical connection between them. Simultaneously, it prevents the connecting wires from repeatedly twisting due to the rotation of the drive motor, thus preventing the internal metal wires of the connecting wires from breaking. This ensures the electrical connection between the drive motor 43 and the controller and power supply, thereby guaranteeing the normal operation of the rotating air supply mechanism 4. In this way, the normal operation of the air supply function of the indoor unit of the air conditioner is guaranteed, making it convenient for users and reducing the maintenance cost and failure rate of the indoor unit.

[0053] In some alternative embodiments, such as Figure 1 , Figure 2 as well as Figure 3As shown, the indoor unit of the air conditioner includes a casing 1, a volute 2, and a heat exchange fan 3. The casing 1 is provided with an air inlet 11 and an air outlet 12. The volute 2 is located inside the casing 1 and has a heat exchange air duct 21 inside. The heat exchange air duct 21 has an air inlet end 211 and an air outlet end 212. The air inlet end 211 is connected to the air inlet 11, and the air outlet end 212 is connected to the air outlet 12.

[0054] The heat exchange fan 3 is located inside the heat exchange duct 21. The heat exchange fan 3 is used to drive the air flow by rotating itself, so that the air enters the heat exchange duct 21 through the air inlet 11 and the air inlet end 211, and the air flows out through the air outlet end 212 and the air outlet 12.

[0055] like Figure 3 and Figure 4 As shown, the indoor unit of the air conditioner also includes a rotating air supply mechanism 4, which is located at the air outlet 12, and as... Figure 4 , Figure 5 as well as Figure 6 As shown, the rotary air supply mechanism 4 includes a base 41, a rotating frame 42, a drive motor 43, a first conductive element 44, and a second conductive element 45. The base 41 is connected to the housing 1. The rotating frame 42 is rotatably mounted on the base 41, and multiple swingable air guides 46 are sequentially spaced within the rotating frame 42. The drive motor 43 is located on the rotating frame 42 and drives the multiple air guides 46 to swing, thereby changing the direction of airflow from the outlet 12.

[0056] The first conductive element 44 is disposed on the rotating frame 42 and electrically connected to the drive motor 43. The second conductive element 45 is disposed on the base 41 and electrically connected to the first conductive element 44. The second conductive element 45 is electrically connected to at least one of the controller and the power supply, so that the controller sends a control signal to the drive motor 43 and the power supply supplies power to the drive motor 43.

[0057] In this embodiment, at least one of the first conductive element 44 and the second conductive element 45 is a ring-shaped conductor. The central axis of the ring-shaped conductor is collinear with the rotation axis of the rotating frame 42. When the first conductive element 44 rotates with the rotating frame 42 around the rotation axis, the first conductive element 44 and the second conductive element 45 rotate relative to each other and slide together, so that the first conductive element 44 and the second conductive element 45 are electrically connected.

[0058] With this configuration, since the rotating frame 42 is rotatably mounted on the base 41 connected to the housing 1, and since the electrically connected drive motor 43 and the first conductive element 44 are both mounted on the rotating frame 42, when the rotating frame 42 rotates around the rotation axis, the drive motor 43 and the first conductive element 44 will rotate together with the rotating frame 42.

[0059] Furthermore, since at least one of the first conductive element 44 and the second conductive element 45 located on the base 41 is a ring-shaped conductor, and since the first conductive element 44 rotates with the rotating frame 42 around the rotation axis, the first conductive element 44 and the second conductive element 45 rotate relative to each other and slide in contact. Therefore, when the drive motor 43 and the first conductive element 44 are electrically connected, and the second conductive element 45 is electrically connected to the controller and the power supply via connecting wires, when the drive motor 43 and the first conductive element 44 rotate together with the rotating frame 42, the relative rotation and sliding contact between the first conductive element 44 and the second conductive element 45 ensures the electrical connection between them. Simultaneously, it prevents the connecting wires from repeatedly twisting due to the rotation of the drive motor, thus preventing the metal wires inside the connecting wires from breaking. This ensures the electrical connection between the drive motor 43 and the controller and the power supply, thereby ensuring the normal operation of the rotating air supply mechanism 4. In this way, the normal operation of the air supply function of the indoor unit of the air conditioner is guaranteed, making it convenient for users and reducing the maintenance cost and failure rate of the indoor unit.

[0060] Furthermore, in some alternative embodiments, such as Figure 7 As shown, the second conductive element 45 is a ring-shaped conductor, such as... Figure 8 As shown, the first conductive element 44 includes an elastic arm 441. Figure 9 As shown, the elastic arm 441 is in elastic contact with the second conductive element 45.

[0061] With this configuration, the second conductive element 45 is set as a ring conductor. When the first conductive element 44 rotates with the rotating frame 42, it can ensure the relative rotation and sliding cooperation between the first conductive element 44 and the second conductive element 45, thereby ensuring that the connecting wire is not repeatedly twisted.

[0062] On the other hand, the elastic contact between the elastic arm 441 and the second conductive element 45 has several advantages. First, the elastic contact can effectively offset any assembly errors, vibrations, or slight positional shifts that may exist between the first conductive element 44 and the second conductive element 45 during rotation, ensuring that the first conductive element 44 and the second conductive element 45 always maintain a stable and reliable electrical connection. This avoids power outages or signal transmission failures in the drive motor 43 due to poor contact, thereby ensuring the continuous and stable operation of the rotary air supply mechanism 4. Second, compared to rigid contact, the elastic contact can significantly reduce frictional losses when the first conductive element 44 and the second conductive element 45 rotate relative to each other, reducing component wear and extending the service life of the first conductive element 44 and the second conductive element 45. At the same time, the elastic arm 441 can buffer the impact force during rotation, reducing the risk of component damage, further improving the reliability of the rotary air supply mechanism 4, and reducing maintenance frequency and costs.

[0063] Furthermore, in some alternative embodiments, such as Figure 8As shown, the first conductive element 44 further includes an annular portion 442, the central axis of which is collinear with the aforementioned rotation axis, and as... Figure 9 As shown, the annular portion 442 and the annular conductor are in a clearance fit in the radial direction of the annular conductor. The elastic arm 441 is connected to the annular portion 442, and the annular portion 442 is electrically connected to the drive motor 43.

[0064] With this configuration, on the one hand, the annular portion 442 can provide precise radial positioning and guidance for the first conductive element 44, avoiding radial offset when the rotating frame 42 drives the first conductive element 44 to rotate, ensuring that the elastic arm 441 can always stably contact the second conductive element 45, thus structurally guaranteeing the stability of the contact between the elastic arm 441 and the second conductive element 45 and preventing contact failure caused by offset.

[0065] On the other hand, the radial clearance fit between the annular part 442 and the annular conductor not only provides reasonable space for the relative movement of the annular part 442 and the annular conductor during rotation, avoiding wear caused by radial friction, but also, in conjunction with the elastic contact of the elastic arm 441, further buffers the vibration and position deviation during rotation. This provides double protection for the stability of the electrical connection between the first conductive element 44 and the second conductive element 45, ensuring the continuous reliability of power supply and signal transmission for the drive motor 43, and ultimately improving the operational stability and overall durability of the rotary air supply mechanism 4, reducing the risk of failure.

[0066] In some alternative embodiments, the first conductive element 44 may include only the elastic arm 441 or the annular portion 442. When the first conductive element 44 includes only the elastic arm 441, the elastic arm 441 is directly electrically connected to the drive motor 43. When the first conductive element 44 includes only the annular portion 442, the first conductive element 44 is also an annular conductor, and the annular portion 442 rotates relative to and slides with the second conductive element 45 so that the annular portion 442 and the second conductive element 45 are electrically connected.

[0067] This design simplifies the structure of the first conductive element 44 and facilitates its processing and manufacturing.

[0068] Furthermore, in some alternative embodiments, such as Figure 8 As shown, an mounting groove 4421 is provided on the outer periphery of the annular portion 442. One end of the elastic arm 441 is connected to the groove wall of the mounting groove 4421, and the other end extends inside the mounting groove 4421. A contact protrusion 4411 is provided on the elastic arm 441, which protrudes outward toward the outside of the mounting groove 4421. The contact protrusion 4411 contacts the second conductive element 45.

[0069] This configuration serves two purposes. First, by restricting the elastic arm 441 through the mounting groove 4421, the position of the elastic arm 441 can be prevented from shifting during the rotation of the rotating frame 42. This ensures that the contact protrusion 4411 is always in the preset position of contacting the second conductive element 45 in the circumferential direction of the annular portion 442, thus structurally guaranteeing the stability of the contact engagement and preventing contact failure caused by misalignment of the elastic arm 441.

[0070] On the other hand, by contacting the protrusion 4411, it is not only convenient for the elastic arm 441 to contact the second conductive element 45, but also the contact area between the elastic arm 441 and the second conductive element 45 can be reduced, thereby reducing the frictional resistance and wear during relative rotation and extending the service life.

[0071] In some alternative embodiments, the elastic arm 441 may also be attached to one axial end of the annular portion 442. In this case, it is not necessary to provide a mounting groove 4421 on the outer periphery of the annular portion 442, which simplifies the structure of the annular portion 442 and facilitates its processing and manufacturing.

[0072] In some alternative embodiments, such as Figure 8 As shown, an elastic arm 441 is provided on the annular portion 442.

[0073] This configuration not only enables elastic contact between the first conductive element 44 and the second conductive element 45, but also simplifies the structure of the first conductive element 44 and facilitates its processing and manufacturing.

[0074] In some alternative embodiments, a plurality of elastic arms 441 are provided on the annular portion 442, and the plurality of elastic arms 441 are evenly distributed along the circumference of the annular portion 442.

[0075] This configuration allows for multiple points of uniform contact along the circumference of the annular portion 442, significantly improving the redundancy and stability of the electrical connection between the first conductive element 44 and the second conductive element 45. Thus, even if individual elastic arms 441 experience slight wear or poor contact, the remaining elastic arms 441 can still maintain normal electrical connection, effectively reducing the risk of single-point failure. Simultaneously, the multiple points of uniform contact disperse friction and contact pressure during relative rotation, reducing wear on individual elastic arms 441 and extending the overall component's service life.

[0076] In some alternative embodiments, such as Figure 8 and Figure 9 As shown, multiple first conductive elements 44 are provided, and the annular portions 442 of the multiple first conductive elements 44 are arranged sequentially at intervals along their own radial direction, and a gap is formed between any two adjacent first conductive elements 44 for a second conductive element 45 to be inserted.

[0077] like Figure 7 and Figure 9 As shown, multiple second conductive elements 45 are provided, and the multiple second conductive elements 45 are arranged sequentially at intervals along their own radial direction, and a gap is formed between any two adjacent second conductive elements 45 for a first conductive element 44 to be inserted.

[0078] This configuration, on the one hand, allows for precise radial positioning and guidance of the first conductive element 44 through the alternating insertion of the first conductive element 44 and the second conductive element 45, thereby further preventing radial offset when the rotating frame 42 drives the first conductive element 44 to rotate, and further ensuring that the elastic arm 441 is always in stable contact with the second conductive element 45.

[0079] On the other hand, the cooperation of multiple sets of conductive components can also improve the redundancy of the overall electrical connection. Even if a certain set of conductive components has poor contact, the other sets of conductive components can still work normally, effectively reducing the risk of the rotary air supply mechanism stopping due to a single conductive circuit failure.

[0080] In some alternative embodiments, one first conductive element 44 and one second conductive element 45 may also be provided, which can simplify the number of first conductive elements 44 and second conductive elements 45, thereby simplifying the structural composition of the rotary air supply mechanism 4 and facilitating the processing and manufacturing of the rotary air supply mechanism 4.

[0081] Furthermore, in some optional embodiments, a portion of the plurality of first conductive elements 44 is a first signal element and another portion is a first power supply element; a portion of the plurality of second conductive elements 45 is a second signal element and another portion is a second power supply element; the second signal element is electrically connected to the first signal element and the controller; and the second power supply element is electrically connected to the first power supply element and the power supply.

[0082] This configuration allows for complete separation of the power supply circuit and signal circuit required by the drive motor 43. This effectively prevents current fluctuations in the power supply circuit from interfering with the signal circuit, prevents control signal distortion, and ensures that the controller can accurately send swing angle adjustment, start and stop commands to the drive motor 43. At the same time, it also prevents the signal circuit from affecting the power supply circuit, ensuring the stability of the power supply to the drive motor 43.

[0083] In addition, the complete separation of the power supply circuit and the signal circuit makes it easier to quickly locate faults during subsequent maintenance (such as distinguishing whether the problem is in the signal circuit or the power supply circuit), thereby reducing maintenance difficulty and cost, and fully ensuring the precise control and stable operation of the rotary air supply mechanism 4.

[0084] In some alternative embodiments, such as Figure 7 , Figure 8 as well as Figure 9As shown, in the annular portion 442 and the annular conductor, a positioning post 47 is provided on the radial inner side of one, and a positioning cylinder 48 for the positioning post 47 to be inserted is provided on the radial inner side of the other. The central axes of the positioning post 47 and the positioning cylinder 48 are both collinear with the aforementioned rotation axis, and the positioning post 47 and the positioning cylinder 48 are rotatably engaged.

[0085] With this configuration, the positioning post 47 and the positioning cylinder 48 can provide precise coaxial positioning of the annular part 442 and the annular conductor in the radial direction, further ensuring that the two always rotate synchronously around the rotation axis. This further avoids misalignment of the contact position between the first conductive element 44 and the second conductive element 45 due to radial offset, ensuring that the elastic arm 441 and the second conductive element 45 can always be stably attached from the structural source, preventing the electrical connection from being interrupted.

[0086] In some alternative embodiments, such as Figure 5 and Figure 9 As shown, a central bearing 49 is also provided on the base 41. The central bearing 49 includes an inner ring, and the central axis of the inner ring is collinear with the aforementioned rotation axis.

[0087] like Figure 5 and Figure 6 As shown, a mounting cylinder 421 is provided on the rotating frame 42. The central axis of the mounting cylinder 421 is collinear with the rotation axis. The mounting cylinder 421 has a closed space 4211 inside, and the drive motor 43 is disposed inside the closed space 4211. Figure 6 and Figure 9 As shown, a central column 422 is provided at one axial end of the mounting cylinder 421. The central axis of the central column 422 is collinear with the rotation axis. The first conductive element 44 is provided at the end of the central column 422 away from the mounting cylinder 421. The central column 422 passes through the inner ring of the bearing and is fixedly fitted with the inner ring of the bearing.

[0088] This configuration serves several purposes. First, the cooperation between the central column 422 and the central bearing 49 provides high-precision, low-friction radial positioning for the rotation of the rotating frame 42. This ensures that the rotating frame 42 can rotate smoothly around the rotation axis when it drives the drive motor 43 and the first conductive element 44 to rotate. This avoids misalignment between the first conductive element 44 and the second conductive element 45 due to rotational deviation. Second, it significantly reduces frictional resistance and component wear during rotation, extends the overall service life of the rotating air supply mechanism 4, and ensures stable and reliable operation of the rotating air supply mechanism 4.

[0089] On the other hand, the enclosed space 4211 of the mounting cylinder 421 can isolate the drive motor 43 from the external environment, effectively preventing dust and moisture, and avoiding dust or moisture intrusion that could cause the drive motor 43 to malfunction.

[0090] In some alternative embodiments, the drive motor 43 can be positioned at any location off the axis of rotation of the rotating frame 42, such as the circumferential edge of the rotating frame 42. In this case, when the first conductive element 44 only includes the elastic arm 441, it is only necessary to ensure that the elastic arm 441 rotates around the axis of rotation; when the first conductive element 44 includes the annular portion 442, it is necessary to ensure that the central axis of the annular portion 442 is collinear with the axis of rotation.

[0091] This configuration makes it easy to install the drive motor 43 on the rotating frame 42.

[0092] In some alternative embodiments, the drive motor 43 may also be exposed in the environment inside the housing 1, thus eliminating the need for the mounting cylinder 421, thereby simplifying the structural composition of the rotary air supply mechanism 4 and facilitating its processing and manufacturing.

[0093] In some alternative embodiments, the central column 422 can be directly rotatably coupled to the base 41. In this case, the central bearing 49 does not need to be provided. This simplifies the structural composition of the rotary air supply mechanism 4 and facilitates its processing and manufacturing.

[0094] In some alternative embodiments, such as Figure 4 and Figure 5 As shown, the base 41 includes a base body 411, a support part 412, and a mounting part 413. The base body 411 is connected to the housing 1, and the base body 411 is annular and sleeved on the outside of the rotating frame 42. The rotating frame 42 is rotatably disposed on the base body 411.

[0095] The support portion 412 extends radially along the base body 411, and both ends of the extension direction of the support portion 412 are connected to the base body 411. The central bearing 49 is disposed on the support portion 412.

[0096] like Figure 5 and Figure 6 As shown, the mounting part 413 includes a U-shaped mounting section 4131 and two connecting sections 4132. The two connecting sections 4132 are connected to the support part 412 and are respectively connected to both ends of the mounting section 4131. The second conductive element 45 is disposed on the mounting section 4131.

[0097] With this configuration, firstly, the annular base body 411 is fitted onto the outside of the rotating frame 42, which not only provides an annular support boundary for the rotating frame 42, limiting its radial offset and ensuring that the rotating frame 42 rotates smoothly around the rotation axis, but also securely fixes the base 41 as a whole through the connection with the housing 1, laying a stable foundation for the subsequent installation of various components.

[0098] Secondly, the support part 412 not only provides a reliable mounting carrier for the central bearing 49, but also helps to reduce the overall weight of the base 41, which is conducive to the lightweight design of the base 41.

[0099] Furthermore, the U-shaped mounting section 413 provides an independent and easy-to-operate mounting space for the second conductive component 45, facilitating the assembly and subsequent maintenance of the second conductive component 45. At the same time, it also helps to further reduce the overall weight of the base 41, which is conducive to further realizing the lightweight design of the base 41.

[0100] In some alternative embodiments, such as Figure 4 and Figure 5 As shown, the rotary air supply mechanism 4 also includes a linkage 410, which is connected to multiple air guides 46 and rotates in coordination with the multiple air guides 46.

[0101] like Figure 10 As shown, the drive motor 43 has a rotating output shaft 431, which is connected to an air guide 46. The drive motor 43 is used to drive the air guide 46 to swing through the rotating output shaft 431, so that the air guide 46 drives the other air guides 46 to swing through the linkage 410.

[0102] With this configuration, on the one hand, only a single drive motor 43 is needed to achieve the coordinated oscillation of all air guides 46, eliminating the need to configure a separate drive motor 43 for each air guide 46. This significantly reduces the number of motors and other components, simplifies the overall structure of the rotary air supply mechanism 4, reduces production and assembly costs and equipment weight, and at the same time reduces potential points of failure.

[0103] On the other hand, the linkage design of the linkage component 410 can strictly ensure that the swing of multiple air guide components 46 is completely synchronized, avoiding the action deviation that may occur due to the independent control of multiple motors, and ensuring the consistency of airflow guidance. In addition, the cooperation between the drive motor 43 and the linkage component 410 can simplify the control logic of the controller, eliminating the need for complex synchronous coordination control of multiple motors, reducing the development difficulty and operating load of the control program. At the same time, when it is necessary to adjust the swing parameters of the air guide component 46, the overall adjustment can be achieved through a single drive motor, making the operation more convenient and comprehensively improving the operational stability, economy and control convenience of the rotary air supply mechanism 4.

[0104] In some alternative embodiments, such as Figure 5As shown, the rotary air supply mechanism 4 also includes a rotary frame drive assembly 420, which includes a rotary motor 4201, a drive gear 4202, and a gear ring 4203. The rotary motor 4201 is mounted on the base 41, the drive gear 4202 is mounted on the output shaft of the rotary motor 4201, and the gear ring 4203 is mounted on the rotary frame 42 and meshes with the drive gear 4202.

[0105] With this configuration, when the rotary motor 4201 drives the drive gear 4202 to rotate, the meshing of the drive gear 4202 with the gear ring 4203 drives the rotating frame 42 to rotate around the rotation axis. This not only facilitates driving the rotating frame 42 to rotate, but also provides stable, precise, and efficient power support for the rotation of the rotating frame 42.

[0106] 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.

Claims

1. An indoor unit for an air conditioner, characterized in that, include: The housing is provided with an air inlet and an air outlet; A volute is disposed inside the housing. The volute has a heat exchange air duct inside. The heat exchange air duct has an air inlet end and an air outlet end. The air inlet end is connected to the air inlet port, and the air outlet end is connected to the air outlet port. A heat exchange fan is disposed in the heat exchange duct. The heat exchange fan is used to drive air flow by rotating itself, so that the air enters the heat exchange duct through the air inlet and the air inlet end, and the air flows out through the air outlet and the air outlet. A rotary air supply mechanism, located at the air outlet, includes: The base is connected to the housing; A rotating frame is rotatably mounted on the base, and multiple swingable air guides are arranged sequentially and at intervals within the rotating frame; A drive motor is provided on the rotating frame and is used to drive the plurality of air guides to swing, so that the plurality of air guides change the direction of the air flowing out of the air outlet; A first conductive element is disposed on the rotating frame and electrically connected to the drive motor; A second conductive element is disposed on the base and electrically connected to the first conductive element. The second conductive element is electrically connected to at least one of the controller and the power supply, so that the controller sends a control signal to the drive motor and the power supply supplies power to the drive motor. Wherein, at least one of the first conductive element and the second conductive element is a ring conductor, the central axis of the ring conductor is collinear with the rotation axis of the rotating frame, and when the first conductive element rotates with the rotating frame around the rotation axis, the first conductive element and the second conductive element rotate relative to each other and slide together, so that the first conductive element and the second conductive element are electrically connected.

2. The indoor unit of the air conditioner according to claim 1, characterized in that, The second conductive element is the ring-shaped conductor, and the first conductive element includes an elastic arm that is in elastic contact with the second conductive element.

3. The indoor unit of the air conditioner according to claim 2, characterized in that, The first conductive element further includes an annular portion, the central axis of which is collinear with the rotation axis, and the annular portion and the annular conductor are in a clearance fit in the radial direction of the annular conductor; The elastic arm is connected to the annular portion, and the annular portion is electrically connected to the drive motor.

4. The indoor unit of the air conditioner according to claim 3, characterized in that, An installation groove is provided on the outer periphery of the annular portion. One end of the elastic arm is connected to the groove wall of the installation groove, and the other end extends inside the installation groove. A contact protrusion is provided on the elastic arm, which protrudes outward from the installation groove and contacts the second conductive element.

5. The indoor unit of the air conditioner according to claim 3 or 4, characterized in that, The annular portion is provided with one of the elastic arms; or... The annular portion is provided with a plurality of elastic arms, which are evenly distributed along the circumference of the annular portion.

6. The indoor unit of the air conditioner according to claim 3 or 4, characterized in that, The first conductive element is provided in multiple ways, and the annular portions of the multiple first conductive elements are arranged sequentially at intervals along their own radial direction, and a gap is formed between any two adjacent first conductive elements for inserting a second conductive element. The second conductive element is provided in multiple ways, and the multiple second conductive elements are arranged sequentially at intervals along their own radial direction, and a gap is formed between any two adjacent second conductive elements to allow one first conductive element to be inserted.

7. The indoor unit of the air conditioner according to claim 6, characterized in that, A portion of the plurality of the first conductive elements is a first signal element, and another portion is a first power supply element; A portion of the plurality of second conductive elements are second signal elements, and another portion are second power supply elements. The second signal elements are electrically connected to the first signal elements and the controller, and the second power supply elements are electrically connected to the first power supply elements and the power supply.

8. The indoor unit of the air conditioner according to claim 3 or 4, characterized in that, Of the annular portion and the annular conductor, a positioning post is provided on the radial inner side of one, and a positioning cylinder for the positioning post to be inserted is provided on the radial inner side of the other. The central axes of the positioning post and the positioning cylinder are both collinear with the rotation axis, and the positioning post and the positioning cylinder are rotatably engaged.

9. The air conditioner indoor unit according to any one of claims 1-4, characterized in that, The base is also provided with a central bearing, which includes an inner ring, and the central axis of the inner ring is collinear with the axis of rotation. The rotating frame is provided with a mounting cylinder, the central axis of the mounting cylinder is collinear with the rotation axis, the mounting cylinder has a closed space, and the drive motor is disposed in the closed space; a central column is provided at one axial end of the mounting cylinder, the central axis of the central column is collinear with the rotation axis, and the first conductive element is disposed at the end of the central column opposite to the mounting cylinder; The central column passes through the inner ring of the bearing and is fixedly fitted with the inner ring of the bearing.

10. The air conditioning indoor unit according to any one of claims 1-4, characterized in that, The rotary air supply mechanism also includes a linkage component, which is connected to and rotates with the multiple air guide components. The drive motor has a rotating output shaft, which is connected to one of the air guides. The drive motor is used to drive the air guide to swing through the rotating output shaft, so that the air guide drives the other air guides to swing through the linkage.

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