Air conditioner indoor unit

Abstract

The application provides an air conditioner indoor unit, comprising: a casing; a guide vane; a driving assembly comprising: a housing provided with a first sliding groove; a first transmission member rotatably connected in the housing; a second transmission member in transmission connection with the first transmission member; a second transmission rod, one end of which is connected to the first transmission member, the second transmission rod being provided with a second sliding groove; a first transmission rod, one end of which is in sliding connection with the second sliding groove of the second transmission rod, the other end of the first transmission rod being movably connected to a first position in the middle of the guide vane; the first transmission rod being provided with a first shaft and a second shaft; when the first transmission member drives the second transmission rod to rotate, the first shaft slides in the first sliding groove and the second shaft slides in the second sliding groove; the second transmission member can be in clamping connection with a rotating shaft at one end of the guide vane; the first transmission rod drives the guide vane to rotate around the rotating shaft clamped by the second transmission member; and the R AB length of the guide vane when rotating is determined through logical relationship operation to meet the design requirements of the driving assembly.

Description

[0001] This application claims priority to Chinese Patent Application No. 202211488644.0 (filed on November 25, 2022), the entire contents of which are incorporated herein by reference. Technical Field

[0002] This invention relates to the field of air conditioning technology, and more particularly to an indoor air conditioning unit. Background Technology

[0003] Air conditioner indoor units typically have a casing with a heat exchange air inlet and outlet. The heat exchange air inlet and outlet are connected. The indoor heat exchanger is located inside the casing. A heat exchange fan is also located inside the casing; the heat exchange airflow generated by the indoor heat exchanger is driven by the operation of the heat exchange fan and output through the heat exchange air outlet.

[0004] An air guide vane is installed at the heat exchange air outlet, and the vane is connected to a drive mechanism. The drive mechanism rotates the air guide vane to open and close the heat exchange air outlet. The indoor unit of the air conditioner has heating and cooling functions. When heating, the hot air discharged from the air outlet rises, and when cooling, the cold air discharged from the air outlet sinks. If the direction of the airflow at the air outlet can be changed according to the function of the air conditioner, a better heating or cooling effect can be achieved.

[0005] In related technologies, the air guide plate is limited by the air guide plate drive mechanism and can usually only rotate in one direction, which makes the air outlet range and angle of the heat exchange air outlet small and the air outlet effect poor. Summary of the Invention

[0006] This invention at least partially solves one of the technical problems in the related art.

[0007] To achieve the above objectives, the present invention provides an indoor air conditioning unit, comprising:

[0008] The casing has a heat exchange air outlet.

[0009] An air guide plate is provided at the heat exchange outlet. The air guide plate has a rotating shaft at each end. The air guide plate can rotate around the rotating shaft to open or close the heat exchange outlet.

[0010] A drive assembly, disposed within the housing, includes:

[0011] The housing is provided with a first sliding groove;

[0012] The first transmission component is rotatably connected inside the housing;

[0013] The second transmission component is connected to the first transmission component in a transmission manner;

[0014] The second transmission rod has one end connected to the first transmission component, and the second transmission rod is provided with a second sliding groove;

[0015] The first transmission rod has one end slidably connected to the second groove of the second transmission rod, and the other end movably connected to the first position in the middle of the air guide plate;

[0016] The first transmission rod is provided with a first shaft and a second shaft, the first shaft is disposed in the first slide groove, and the second shaft is disposed in the second slide groove;

[0017] When the first transmission component drives the second transmission component to rotate, the first shaft slides in the first slide groove, the second shaft slides in the second slide groove, and the second transmission component can be engaged with the rotating shaft at one end of the air guide plate; the first transmission rod pushes the air guide plate to rotate around the rotating shaft engaged with the second transmission component;

[0018] The linear velocity at the first position in the middle of the air guide plate is v2;

[0019] The point where the extension of the second transmission rod along its length and the perpendicular line to the linear velocity v2 intersect is defined as point O;

[0020] The distance L between the rotation axis of the first transmission component and point O is... OA ;

[0021] The distance from the first position to point O is L OC ;

[0022] The distance R between the center of the first shaft and the rotational center of the first transmission component is... AB ;

[0023] The distance between the axis of the rotating shaft and the first position in the middle of the air guide plate is R. DC ;

[0024] The angular velocity of the air guide plate is ω DC ;

[0025] The distance from the center of the first shaft to the first position is L. BC ;

[0026] The angular velocity of the first transmission component is ω1;

[0027] Through ω DC L BC ω1 and R DC Preset values, and L combined with measurements OA and L OC Logical relationship calculations are performed on the length to determine the R value when the air guide plate rotates. AB length.

[0028] In some embodiments of this application, the distance from the center of the first axis to point O is L. OB ;

[0029] The logical relationship is as follows:

[0030] v2=ω DC ×R DC v2=ω BC ×L OC v1=ω BC ×L OB v1 = ω1 × R AB L OA =L OB +R AB ;

[0031] The R value when the air guide plate rotates is determined by calculation based on the logical relationship. AB length.

[0032] In some embodiments of this application, it also includes:

[0033] A third transmission component is disposed between the first transmission component and the second transmission component, and is connected to both the first transmission component and the second transmission component in a transmission connection.

[0034] When the first transmission component rotates, it can drive the third transmission component to rotate. The rotation of the third transmission component drives the second transmission component to move toward one end of the air guide plate, so as to engage with the rotating shaft at one end of the air guide plate.

[0035] In some embodiments of this application, the first transmission member includes: a first level and a second level, wherein the rotation axes of the first level and the second level are the same;

[0036] The first layer is provided with a third tooth, which is connected to the driving component and drives the first transmission component to rotate.

[0037] In some embodiments of this application, a micro switch is provided on the housing, the micro switch is electrically connected to the driving element, and a mating protrusion is provided on the first layer, the mating protrusion selectively contacting the micro switch to control the driving element to stop;

[0038] When the first rotating member rotates to drive the mating protrusion to contact the micro switch, the driving member stops operating;

[0039] When the first rotating member rotates to disengage the mating protrusion from the micro switch, the driving member starts to operate.

[0040] In some embodiments of this application, a limiting rod is provided on the housing, a limiting hole is provided on the second transmission member, the limiting rod is disposed in the limiting hole, and the second transmission member can slide along the length direction of the limiting rod.

[0041] In some embodiments of this application, the third transmission member is a grooved wheel, the grooved wheel is provided with a first tooth and a mating hole, the mating hole and the first tooth are spaced apart, the second transmission member is provided with a second tooth, the first tooth and the second tooth are mated, the first transmission member is provided with a mating post, the mating post and the mating hole are selectively mated.

[0042] In some embodiments of this application, the first transmission member rotates to make the mating post contact the mating hole, and the mating post slides into the mating hole; the first transmission member rotates to make the mating post push the grooved wheel to rotate.

[0043] The mating post first slides towards the axis of rotation of the grooved wheel within the mating hole, and then slides out of the mating hole away from the axis of rotation of the grooved wheel.

[0044] In some embodiments of this application, the housing includes: a first housing and a second housing, the first housing being connected to the second housing; the first transmission member being connected to the first housing, and the first sliding groove being disposed on the second housing;

[0045] The first groove includes multiple arc grooves, and the ends of the multiple arc grooves are tangentially connected.

[0046] In some embodiments of this application, the rotating shaft includes a first rotating shaft and a second rotating shaft. The two ends of the housing are respectively provided with a first rotating groove and a second rotating groove that cooperate with the first rotating shaft and the second rotating shaft. When the first rotating shaft is engaged in the first rotating groove, the air guide plate rotates around the first rotating shaft; when the second rotating shaft is engaged in the second rotating groove, the air guide plate rotates around the second rotating shaft.

[0047] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0048] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0049] Figure 1 This is a complete unit drawing of an air conditioner indoor unit according to one embodiment of this application;

[0050] Figure 2 This is a schematic diagram of the installation position of the drive component according to one embodiment of this application;

[0051] Figure 3 This is a schematic diagram of a sliding groove arrangement according to one embodiment of this application;

[0052] Figure 4 This is a schematic diagram of the open position of the air guide plate according to one embodiment of this application. Figure 1 ;

[0053] Figure 5 This is a schematic diagram of the open position of the air guide plate according to one embodiment of this application. Figure 2 ;

[0054] Figure 6 This is a schematic diagram of the closed position of the air guide plate according to one embodiment of this application. Figure 1 ;

[0055] Figure 7 This is a schematic diagram showing the position of the air guide plate in heating mode according to one embodiment of this application;

[0056] Figure 8 This is a schematic diagram of the position of the air guide plate in cooling mode according to one embodiment of this application. Figure 1 ;

[0057] Figure 9 This is a schematic diagram of the position of the air guide plate in cooling mode according to one embodiment of this application. Figure 2 ;

[0058] Figure 10 This is a schematic diagram of the structure of the second transmission member according to one embodiment of this application. Figure 1 ;

[0059] Figure 11 This is a schematic diagram of the structure of the second transmission member according to one embodiment of this application. Figure 2 ;

[0060] Figure 12 This is a schematic diagram of the cooperation structure between the second transmission member and the limiting rod according to one embodiment of this application;

[0061] Figure 13 This is a schematic diagram of the closed position of the air guide plate according to one embodiment of this application. Figure 2 ;

[0062] Figure 14 yes Figure 13 Enlarged schematic diagram of section R in the middle;

[0063] Figure 15 This is a schematic diagram of the closed position of the air guide plate according to one embodiment of this application. Figure 3 ;

[0064] Figure 16 yes Figure 15 Enlarged schematic diagram of section S in the middle;

[0065] Figure 17 This is a schematic diagram of the structure of a third transmission member according to one embodiment of this application;

[0066] Figure 18 This is a schematic diagram of the structure of the concave surface and the flange fitting according to one embodiment of this application;

[0067] Figure 19 This is a schematic diagram of the structure of the mating hole and the mating post according to one embodiment of this application;

[0068] Figure 20 This is a schematic diagram showing the placement of the mating column according to one embodiment of this application;

[0069] Figure 21 This is a schematic diagram showing the initial contact position between the mating column and the second transmission member according to one embodiment of this application;

[0070] Figure 22 This is a schematic diagram of the installation position of the drive component according to one embodiment of this application;

[0071] Figure 23 yes Figure 22 Enlarged schematic diagram of the T-section;

[0072] Figure 24 This is a schematic diagram of the installation position of the main drive component according to one embodiment of this application.

[0073] In the above figures: 101 housing; 102 base; 10 shell; 11 first rotating groove; 12 second rotating groove; 13 second hook; 15 first sliding groove; 16 third engaging part; 17 limiting rod; 18 first shell; 19 second shell; 191 guide surface; 20 first transmission component; 21 mating post; 22 third tooth; 23 mating protrusion; 24 first level; 25 second level; 26 flange; 27 recessed groove; 30 second transmission component; 31 baffle; 32 fourth engaging part; 33 second tooth; 34 limiting hole; gap. 35; Support point 36; First limiting part 37; Second limiting part 38; Oil reservoir 39; Protrusion 391; First transmission rod 40; First shaft 41; Second shaft 42; Third transmission component 50; First tooth 51; Mating hole 52; Recessed surface 53; Second transmission rod 60; Second slide groove 61; Air guide plate 200; First locking part 210; Second locking part 220; First hook 230; First rotating shaft 240; Second rotating shaft 250; Main drive component 300; Drive motor 301; Output shaft 302; Micro switch 400. Detailed Implementation

[0074] The present invention will now be described in detail through exemplary embodiments. However, it should be understood that, without further description, elements, structures, and features in one embodiment may be advantageously incorporated into other embodiments.

[0075] In this application, the air conditioner performs a refrigeration cycle by using a compressor, condenser, expansion valve, and evaporator. The refrigeration cycle includes a series of processes involving compression, condensation, expansion, and evaporation, and supplies refrigerant to the conditioned and heat-exchanged air.

[0076] The compressor compresses refrigerant gas under high temperature and pressure and discharges the compressed refrigerant gas. The discharged refrigerant gas flows into the condenser. The condenser condenses the compressed refrigerant into a liquid phase, and the heat is released to the surrounding environment through the condensation process.

[0077] The expansion valve expands the high-temperature, high-pressure liquid refrigerant condensed in the condenser into a low-pressure liquid refrigerant. The evaporator evaporates the expanded refrigerant in the expansion valve, returning the low-temperature, low-pressure refrigerant gas to the compressor. The evaporator achieves its cooling effect by utilizing the latent heat of refrigerant evaporation to exchange heat with the material being cooled. Throughout the cycle, the air conditioner regulates the temperature of the indoor space.

[0078] An air conditioner includes an indoor unit and an outdoor unit. The outdoor unit refers to the part of the refrigeration cycle that includes the compressor and the outdoor heat exchanger. The indoor unit includes the indoor heat exchanger, and an expansion valve can be provided in either the indoor or outdoor unit.

[0079] The indoor heat exchanger and outdoor heat exchanger function as either condensers or evaporators. When the indoor heat exchanger is used as a condenser, the air conditioner functions as a heater in heating mode; when the indoor heat exchanger is used as an evaporator, the air conditioner functions as a cooler in cooling mode.

[0080] In the following, embodiments of this application will be described in detail with reference to the accompanying drawings.

[0081] The air conditioning indoor unit in the embodiments of this application can be a wall-mounted indoor unit, but this application is not limited to this.

[0082] Reference Figures 1-24 The indoor unit of the air conditioner according to the embodiments of this application includes a housing 101 and a base 102. In this embodiment, the side of the indoor unit that is wall-mounted is the rear side.

[0083] In this embodiment, the housing 101 forms the overall appearance of the indoor air conditioner unit. The housing 101 is provided with a heat exchange air outlet and a heat exchange air inlet. The heat exchange air outlet is an elongated strip shape arranged along the length of the indoor air conditioner unit. The heat exchange air outlet can be located on the lower side of the housing 101, and the heat exchange air inlet can be located on the upper side of the housing 101.

[0084] The housing 101 is enclosed by the base 102, and the base 102 is provided with a heat exchange air duct. The heat exchange air duct connects the heat exchange air inlet and the heat exchange air outlet on the housing 101. Indoor air enters the housing 101 from the heat exchange air inlet, passes through the heat exchange air duct, and is blown out from the heat exchange air outlet.

[0085] The indoor heat exchanger can be installed inside the heat exchange duct, specifically on the side of the duct closest to the heat exchange inlet. The indoor heat exchanger is used to absorb heat from the air introduced into the heat exchange inlet or to transfer heat to the air. The indoor air passes through the heat exchange duct and is then blown out through the heat exchange outlet.

[0086] A drip tray may be positioned below the indoor heat exchanger to collect condensed water within the heat exchanger. The drip tray may connect to a drain pipe extending to the exterior of the base 102, thereby discharging the condensate to the outside of the indoor unit. In some embodiments, the drip tray may be integrally formed with the base 102, thereby reducing costs and improving installation efficiency.

[0087] A heat exchange fan can be installed inside the heat exchange duct to blow out air, allowing indoor air to flow from the heat exchange inlet to the heat exchange outlet.

[0088] Under the forced convection of the heat exchange fan, the airflow outside the casing 101 is introduced into the casing 101 through the heat exchange inlet, and then heat is exchanged through the heat exchanger to form a heat exchange airflow. Driven by the operation of the heat exchange fan, the heat exchange airflow is output outward through the heat exchange outlet. In this way, through the operation of the heat exchanger and the heat exchange fan, the airflow outside the casing 101 can be cooled or heated to achieve a comfortable temperature for the user.

[0089] The air conditioner also includes a drive assembly 100 and an air guide plate 200, with the drive assembly 100 disposed inside the housing 101.

[0090] The air guide plate 200 is installed at the heat exchange air outlet. The air guide plate 200 has a rotating shaft at both ends. The air guide plate 200 can rotate around the rotating shaft to open or close the heat exchange air outlet.

[0091] The drive assembly 100 includes: a housing 10, a drive component, a first transmission component 20, a second transmission component 30, a first transmission rod 40, and a second transmission rod 60.

[0092] The drive assembly 100 is disposed at at least one end of the base 102 at opposite ends, and the drive assembly 100 may be one or two. When there are two drive assemblies 100, the drive assemblies 100 are disposed at opposite ends of the base 102 respectively. The two drive assemblies 100 may be symmetrically distributed.

[0093] The housing 10 is located at the end of the base 102, the driving component is located inside the housing 10, the first transmission component 20 is connected to the driving component, and the first transmission component 20 is rotatably connected inside the housing 10.

[0094] The second transmission component 30 is connected to the first transmission component 20. The rotation of the first transmission component 20 can drive the second transmission component 30 to slide relative to the housing 10.

[0095] One end of the second transmission rod 60 is connected to the first transmission member 20, and the other end of the first transmission rod 40 is connected to the first transmission rod 40. The second transmission rod 60 is provided with a second sliding groove 61. One end of the first transmission rod 40 is slidably connected to the second sliding groove of the second transmission rod 60, and the other end of the first transmission rod 40 is connected to a first position in the middle of the air guide plate 200.

[0096] The first transmission rod 40 is provided with a first shaft 41 and a second shaft 42. The first shaft 41 is disposed in the first slide groove 15, and the second shaft 42 is disposed in the second slide groove 61. It can be configured that the first shaft 41 and the second shaft 42 are respectively disposed on opposite sides of the first transmission rod 40, and the axes of the first shaft 41 and the second shaft 42 coincide.

[0097] The housing 10 is provided with a first sliding groove 15. When the first transmission member 20 drives the second transmission rod 60 to rotate, the first shaft 41 slides in the first sliding groove 15, and the second shaft 42 slides in the second sliding groove 61. The first transmission rod 40 pushes the air guide plate 200 to rotate around the rotating shaft that is engaged with the second transmission member 30. When the first transmission member 20 drives the second transmission rod 60 to rotate, the second transmission member 30 can engage with the rotating shaft at one end of the air guide plate 200 to realize the upward or downward flipping of the air guide plate 200.

[0098] In heating mode, the drive assembly 100 drives the first transmission component 20 to rotate counterclockwise. Driven by the first transmission component 20, the second transmission component 30 moves towards one end of the air guide plate 200, causing the second transmission component 30 to engage with one end of the air guide plate 200. At this time, the opposite end of the air guide plate 200 is free. The air guide plate 200 can rotate around the axis of its engaged end. Through the cooperation of the first transmission component 20, the first transmission rod 40, the second transmission rod 60, and the air guide plate 200, the air guide plate 200 is pushed to rotate clockwise upwards around its engaged end. At this time, the air blown from the heat exchange outlet of the indoor unit is guided downwards by the air guide plate 200.

[0099] Furthermore, in cooling mode, the drive assembly 100 drives the first transmission member 20 to rotate clockwise, and the second transmission member 30 moves towards the other end of the air guide plate 200 under the drive of the first transmission member 20, so that the second transmission member 30 engages with the other end of the air guide plate 200. At this time, the end opposite to the end of the air guide plate 200 that is engaged is in a free state. The air guide plate 200 can rotate around the pivot of its engaged end. Through the mutual cooperation between the first transmission member 20, the first transmission rod 40, the second transmission rod 60 and the air guide plate 200, the air guide plate 200 is pushed to rotate counterclockwise downwards around its engaged end. At this time, the air blown out from the heat exchange outlet of the indoor unit of the air conditioner will be guided by the air guide plate 200 to the top of the indoor unit of the air conditioner.

[0100] It is important to understand that in heating mode, the counterclockwise rotation of the drive assembly 100 driving the first transmission component 20 and the clockwise upward rotation of the air guide plate 200 around its locked end are not directly correlated. That is, it can also be configured such that the drive assembly 100 drives the first transmission component 20 to rotate clockwise, thereby causing the air guide plate 200 to rotate clockwise upward around its locked end, thus directing the air blown from the heat exchange outlet of the indoor unit to the bottom of the indoor unit via the air guide plate 200.

[0101] Similarly, in cooling mode, the clockwise rotation of the first transmission component 20 driven by the drive assembly 100 and the counterclockwise downward rotation of the air guide plate 200 around its locked end are not directly correlated. That is, it can also be configured such that the drive assembly 100 drives the first transmission component 20 to rotate counterclockwise, thereby causing the air guide plate 200 to rotate counterclockwise downward around its locked end, thus directing the air blown from the heat exchange outlet of the indoor unit upwards by the air guide plate 200. Those skilled in the art can configure this according to specific application requirements.

[0102] It should be understood that when the drive components 100 are set to two or more, in the same mode, the rotation direction of the first transmission member 20 of different drive components 100 can be opposite.

[0103] Therefore, the drive assembly 100 can drive the air guide plate 200 to rotate up and down, ensuring that the cold air is lifted and delivered while retaining the function of direct airflow to people. When the air conditioner is in cooling mode, the air guide plate 200 only needs to be moved to the heating state to provide the user with the function of direct airflow to people.

[0104] In some embodiments of this application, the trajectory of the air guide plate 200 is simulated by setting the shape of the curve of the first slide 15. The curvature at various points on the first slide 15 can change the opening and closing angular velocity of the air guide plate 200 at each moment.

[0105] Given that the opening and closing angular velocity of the air guide plate 200 at each moment has been determined, the shape of the curve of the first slide 15 and the curvature at various points on the first slide 15 can be derived in reverse through logical relationship calculations.

[0106] The rotation axis of the first transmission component 20 is defined as point A, and the position of the axis of the first shaft 41 is defined as point B. The first position in the middle of the air guide plate 200 is defined as point C, and the axis of rotation of one section of the air guide plate 200 is defined as point D. The linear velocity of the first position in the middle of the air guide plate 200 is v2, and the distance between the axis of rotation and the first position in the middle of the air guide plate 200 is R. DC The linear velocity v2 is perpendicular to R DC The point O is defined as the intersection of the extension of the length of the second transmission rod 60 passing through point B and the perpendicular line to the linear velocity v2.

[0107] The distance from the rotation axis of the first transmission component 20 to point O is L. OA The distance from the first position to point O is L. OC The distance R between the center of the first shaft 41 and the rotational center of the first transmission component 20 is... AB The distance from the center of the first axis 41 to point O is L. OB The angular velocity of the air guide plate 200 is ω. DCThe distance from the center of the first axis 41 to the first position is L. BC The angular velocity of the first transmission component 20 is ω1.

[0108] By using ω DC L BC ω1 and R DC Preset values, and L combined with measurements OA and L OC Logical relationship calculations are performed on the length to determine the R value when the air guide plate 200 rotates. AB The length, the first shaft 41, is matched with and disposed within the first slide groove 15. Therefore, when the guide vane 200 rotates to different positions, R... AB Once the length is determined, since point A is known and fixed, connecting the locations of point B will yield the shape of the curve of the first slide 15 and the curvature at various points on the first slide 15.

[0109] By presetting ω DC L BC ω1 and R DC The value of is determined when the air guide plate 200 closes the heat exchange outlet, at which point the third transmission rod is set perpendicular to the air guide plate 200. The position of the rotation axis A of the first transmission component 20 is determined along the length direction of the first transmission rod 40.

[0110] The extension of the second transmission rod 60 along its length passing through point B and the perpendicular line to its linear velocity v2 intersect at point O. When the guide plate 200 rotates, the first transmission component 20 rotates at a predetermined angular velocity ω1. The angular velocity ω of the guide plate 200 at different positions is... DC Different values ​​can be taken. Therefore, the position of the second transmission rod 60 corresponding to any position when the air guide plate 200 rotates is predictable. By measuring the L corresponding to different positions when the air guide plate 200 rotates, OA and L OC The length of the guide vane 200 and the corresponding ω when the guide vane 200 is rotated to different positions. DC L BC , ω1, R DC L OA and L OC The value of is substituted into the logical relationship, and the R value when the air guide plate 200 rotates is determined by calculation through the logical relationship. AB The length is used to determine the shape of the curve of the first slide 15 and the curvature at various points on the first slide 15. The logical relationship is: v2 = ω DC ×R DC v2=ω BC ×L OC v1=ω BC ×L OB v1 = ω1 × RAB L OA =L OB +R AB .

[0111] Since the first transmission component 20 rotates at an angular velocity of ω1 during uniform rotation, it pushes one end of the first transmission rod 40 to move within the constraint of the curve of the first slide groove 15. The curvature of the curve of the first slide groove 15 changes at every moment. The first transmission component 20, the first transmission rod 40, the second transmission rod 60, and the air guide plate 200 are connected to form a four-bar linkage. However, the length of one of the links in the four-bar linkage is determined by the curve of the first slide groove 15, therefore R AB The magnitude of this variable changes over time, and is reflected in the transmission of the speed of the drive component 100. This allows for the artificial limitation of the instantaneous angular velocity ω of the guide vane 200 at any given moment. DC Furthermore, the global curvature of the grooved wheel curve can be deduced from the aesthetics and practicality of the air guide plate 200's movement speed, which is beneficial for designing technical solutions for the specific structure of the product based on the parameter requirements of the customer's end.

[0112] In some embodiments, in order to ensure that the curvature of the first slide 15 meets the reliability requirements of the drive member driving the first connector to rotate, it is necessary to detect and adjust the curvature of the first slide 15 so that the drive assembly 100 can operate reliably.

[0113] The driving component includes a main driving component 300 and a drive motor 301. The output shaft 302 of the drive motor 301 is fixedly connected to the main driving component 300, and the main driving component 300 is connected to the first transmission component 20. The motor output shaft 302 of the drive motor 301 rotates to drive the main driving component 300 to rotate around its rotation axis. The rotation of the main driving component 300 drives the second transmission rod 60 to rotate synchronously. The second transmission rod 60 pushes one end of the first transmission rod 40 to slide in the second slide groove 61, and the first shaft 41 on the first transmission rod 40 slides in the first slide groove 15. One end of the first transmission rod 40 connected to the air guide plate 200 pushes the air guide plate 200 to rotate. The air guide plate 200 rotates clockwise or counterclockwise around one of its two ends of the rotation axis to realize the upward or downward opening of the air guide plate 200 for blowing air.

[0114] The torque sensor detects the torque of the motor output shaft 302 of the drive motor 301 and determines whether the torque is not higher than a preset threshold. The preset threshold is a safety threshold for the safe operation of the motor.

[0115] When the torque of the motor output shaft 302 of the drive motor 301 is higher than a preset threshold, it indicates that the resistance of the motor output shaft 302 at this point is relatively large, meaning that the resistance of the motor output shaft 302 in driving the first transmission member 20 is relatively large. Since the transmission connection between the first transmission member 20 and the main drive member 300 remains constant, but the curvature of the first slide groove 15 changes, the driving force required for the first shaft 41 of the first transmission rod 40 to slide within the first slide groove 15 varies. When the power of the drive motor 301 is fixed, when the torque sensor detects that the torque of the motor output shaft 302 of the drive motor 301 is higher than a preset torque, the curvature of the curve at the first slide groove 15 corresponding to the first shaft 41 changes drastically.

[0116] When the torque sensor detects that the torque of the motor output shaft 302 of the drive motor 301 is higher than the preset torque, the position of the first slide groove 15 corresponding to the axis of the first shaft 41 at this time is moved a preset distance toward the rotation axis of the first transmission member 20.

[0117] Repeat the above process to continue detecting the torque of the motor output shaft 302 corresponding to each position of the first shaft 41 in the first slide groove 15 using the torque sensor until the detection is completed.

[0118] Optionally, in the step of moving the position of the first slide groove 15 corresponding to the axis of the first shaft 41 towards the rotation axis of the first transmission member 20 by a preset distance, adjacent points on the curve of the first slide groove 15 corresponding to the axis of the first shaft 41 can be moved towards the rotation axis of the first transmission member 20. The moving distance can be less than the preset distance so that the curvature of the curve of the first slide groove 15 can transition smoothly.

[0119] Moving the position of the first groove 15 corresponding to the axis of the first shaft 41 towards the rotation axis of the first transmission member 20 by a preset distance can shorten R at that position. AB The length of R. According to the lever principle, R... AB The reduction in lever arm length will lead to an increase in driving force at that position, thereby improving the load-bearing capacity of the motion mechanism and thus improving the reliability of the rotation of the air guide plate 200.

[0120] The end of the second groove furthest from the rotation axis of the first transmission member 20 is defined as point L, and the distance from point L to the rotation axis of the first transmission member 20 is L. LA .

[0121] The first shaft 41 and the second shaft 42 are coaxially arranged, and the distance R between the axis of the second shaft 42 and the axis of rotation of the first transmission component 20 is... AB The configurable setting is the length L. LA It is twice the length of the second slot.

[0122] When the distance R between the axis of the second shaft 42 and the axis of rotation of the first transmission component 20 AB Shorten to meet L LA =χ*R AB At that time, i.e., L LA The length is equal to χ times R AB At this time, the driving force exerted on the first transmission rod 40 by the second transmission rod 60 under the same rotation angle will increase by a factor of χ. By moving the position of the first slide groove 15 corresponding to the axis of the first shaft 41 towards the rotation axis of the first transmission member 20 by a preset distance, the radius R can be shortened at that position. AB The increased length of the drive rod 40 increases the driving force on the first drive rod 40, making the operation of the drive assembly 100 more reliable and more stable.

[0123] In the step of detecting the torque of the motor output shaft 302 of the drive motor 301 by a torque sensor and determining whether the torque is not higher than a preset threshold.

[0124] The preset threshold is less than the rated torque of the drive motor 301. In some embodiments, the preset threshold can be set to less than half of the rated torque of the drive motor 301 to ensure that the drive motor 301 operates under a safe torque and to avoid damage to the drive motor 301 caused by excessive torque at a certain position.

[0125] In some embodiments, in order to ensure the reliability of operation when the first slide groove 15 is driven by the drive member to rotate the first connector, the size and shape of the curve curvature of the first slide groove 15 can be improved.

[0126] The first slide groove 15 is an arc-shaped groove composed of multiple arc-shaped grooves. The ends of the multiple arc-shaped grooves are tangentially connected to reduce the resistance of the first slide groove 15 to the first shaft 41 and improve the smoothness of the drive assembly 100 during operation. The endpoints of the arc-shaped first slide groove 15 are points H and G, respectively. Along the direction extending from point H to point G of the first slide groove 15, the points where the ends of the multiple arc-shaped grooves connect are defined sequentially as points I, J, K, E, and F.

[0127] The first slide groove 15 is provided with arcs HI, IJ, JE, EF and FG in sequence. Among them, arc JE is located in the middle of the first slide groove 15, and the midpoint of arc JE is point K. Point K is the point on the first slide groove 15 that is farthest from the rotation axis of the first transmission member 20. Point K is set away from the rotation axis of the first transmission member 20 relative to point E.

[0128] It can be configured that the first slide groove 15 can satisfy one or any combination of the arc HI being a perfect circle, the arc JE being a perfect circle, or the arc FG being a perfect circle, so as to reduce the influence of the curve curvature of the first slide groove 15 on the torque of the output shaft 302 of the drive motor 301 and improve the smoothness of the drive assembly 100 during operation.

[0129] In some embodiments, the length of the line segment from the arc HI to the rotation axis center A of the first transmission member 20 is defined as R. HA The length of the line segment from the arc JE to the rotation axis A of the first transmission component 20 is defined as R. JA The length of the line segment from the arc FG to the rotation axis A of the first transmission component 20 is defined as R. FA Satisfying R HA =R FA <R JA This is so that when the first shaft 41 rotates from point K to both ends of the first slide groove 15, under the same driving force of the drive motor 301, the driving force on the first transmission rod 40 increases, ensuring the reliable operation of the drive assembly 100.

[0130] In some embodiments, the setting of the first slide 15 satisfies one or any combination of 0°≤∠HAI≤25°, 10°≤∠JAE≤25°, or 0°≤∠FAG≤25°, which can make the first shaft 41 run more reliably in the first slide 15 and avoid the first shaft 41 having any running jamming points in the first slide 15.

[0131] In some embodiments, when the first shaft 41 is fitted within the arc JE, there is a first bilateral gap between the first shaft 41 and the width of the arc JE. That is, the gap between the two sides of the first shaft 41 and the width of the arc JE is the first bilateral gap, thereby avoiding jamming when the first shaft 41 slides within the arc JE, and thus improving the smoothness of the operation of the drive assembly 100. The first bilateral gap can be set to 0.2 mm.

[0132] When the first shaft 41 is fitted within the arc HJ, there is a second double-sided gap between the first shaft 41 and the width of the arc HJ. That is, the gap between the two sides of the first shaft 41 and the width of the arc HJ is the second double-sided gap, thereby avoiding jamming when the first shaft 41 slides within the arc HJ, and thus improving the smoothness of the operation of the drive assembly 100. It can be set that the first double-sided gap is greater than the second double-sided gap, and the second double-sided gap can be set to 0.1mm.

[0133] When the first shaft 41 is fitted within the arc EG, there is a third bilateral clearance between the first shaft 41 and the width of the arc EG. That is, the clearance between the two sides of the first shaft 41 and the width of the arc EG is the third bilateral clearance. This avoids jamming when the first shaft 41 slides within the arc EG, thereby improving the smoothness of the operation of the drive assembly 100. It can be set that the first bilateral clearance is greater than the third bilateral clearance, and the third bilateral clearance can be set to 0.1mm.

[0134] Since the first shaft 41 requires the greatest driving force at point K, making the first double-sided clearance greater than the second double-sided clearance or the first double-sided clearance greater than the third double-sided clearance can avoid the first shaft 41 from getting stuck in the arc JE and improve the smoothness of the use of the drive assembly 100.

[0135] In some embodiments, refer to Figure 7 and Figure 8 The angle of ∠KAH is set to 120°. When the first shaft 41 moves from point K to point H along the first slide groove 15, the air guide plate 200 moves from the closed state to the open state with the downward opening. The rotation angle of the air guide plate 200 is 75°.

[0136] In some embodiments, refer to Figure 7 and Figure 8 The angle of ∠KAG is set to 150°. When the first shaft 41 moves from point K to point G along the first slide groove 15, the air guide plate 200 moves from the closed state to the upward-opening state, and the rotation angle of the air guide plate 200 is 80°. When the air guide plate 200 moves to the extreme upper and lower opening positions, the upward opening angle of the air guide plate 200 is greater than the downward opening angle, so as to increase the distance of the cold air blown out when opening upward, avoid blowing onto the ceiling of the indoor room, avoid blocking the air outlet, and avoid affecting the air outlet efficiency. Because the indoor unit of the air conditioner is usually located at the top of the indoor space, when the indoor unit of the air conditioner blows air downward, the downward air outlet of the air conditioner will not be blocked. Therefore, the downward opening angle of the air guide plate 200 can be smaller than the upward opening angle of the air guide plate 200.

[0137] In some embodiments, the drive assembly 100 further includes a third transmission member 50. The third transmission member 50 is disposed between the first transmission member 20 and the second transmission member 30, and is drively connected to the first transmission member 20 and the second transmission member 30 respectively. When the first transmission member 20 rotates, it can drive the third transmission member 50 to rotate, and the rotation of the third transmission member 50 drives the second transmission member 30 to move one end of the guide vane 200 to engage with the rotating shaft of one end of the guide vane 200.

[0138] In some embodiments, the output shaft 302 of the drive motor 301 is connected to the rotation center of the main drive member 300. The rotation center of the main drive member 300 and the rotation axis of the third transmission member 50 can be coaxially arranged. The main drive member 300 and the third transmission member 50 are movably connected, and the rotation of the main drive member 300 does not directly drive the rotation of the third transmission member 50. The coaxial overlapping arrangement of the main drive member 300 and the third transmission member 50 reduces the space occupied by the drive member within the housing. In other embodiments, since the coaxial arrangement of the rotation center of the main drive member 300 and the rotation axis of the third transmission member 50 limits the parameters of the gear transmission engagement between the first transmission member 20, the third transmission member 50, and the main drive member 300, it cannot accommodate the engagement of various transmission parameters. Therefore, in other embodiments, the rotation center of the main drive member 300 can also be set to be non-coaxial with the rotation axis of the third transmission member 50, so that the drive assembly can adapt to various parameter requirements.

[0139] In some embodiments, the rotating shaft includes a first rotating shaft 240 and a second rotating shaft 250, and the two ends of the housing 10 are respectively provided with a first rotating groove 11 that cooperates with the first rotating shaft 240 and a second rotating groove 12 that cooperates with the second rotating shaft 250.

[0140] The air guide plate 200 is provided with a first locking part 210 and a second locking part 220. A first rotating shaft 240 is disposed on the first locking part 210, and a second rotating shaft 250 is disposed on the second locking part 220. The second transmission member 30 is used to engage the first locking part 210 in the first rotating groove 11 or the second locking part 220 in the second rotating groove 12, so as to realize the downward or upward flipping of the air guide plate 200.

[0141] When the first engaging portion 210 is engaged in the first rotating groove 11, the air guide plate 200 rotates around the first rotating shaft 240 on the first engaging portion 210. When the second engaging portion 220 is engaged in the second rotating groove 12, the air guide plate 200 rotates around the second rotating shaft 250 on the second engaging portion 220. Thus, by providing the first rotating groove 11 and the second rotating groove 12 at both ends of the opening of the housing 10, the air guide plate 200 can rotate relative to the first engaging portion 210 or the second engaging portion 220.

[0142] When the first snap-fit ​​part 210 is engaged in the first rotating groove 11, the air guide plate 200 can swing relative to the heat exchange air outlet through the engagement between the first snap-fit ​​part 210 and the first rotating groove 11. In the cooling mode, the air guide plate 200 can be flipped downwards, that is, the air outlet range formed between the air guide plate 200 and the heat exchange air outlet is set upwards, thereby realizing the upward air blowing design of the air conditioner.

[0143] When the second snap-fit ​​part 220 is engaged in the second rotating groove 12, the air guide plate 200 can swing relative to the heat exchange air outlet through the engagement between the second snap-fit ​​part 220 and the second rotating groove 12. In the heating mode, the air guide plate 200 can be flipped upward, that is, the air outlet range formed between the air guide plate 200 and the heat exchange air outlet is set downward, thereby realizing the downward air blowing design of the air conditioner.

[0144] Both the first latching part 210 and the second latching part 220 are provided with a first hook 230. The first hook 230 is connected to the rotating shaft and rotates with the rotation of the air guide plate 200.

[0145] A second hook 13 is provided in the first rotating groove 11 and the second rotating groove 12, and the first hook 230 and the second hook 13 selectively abut against each other. That is, the first hook 230 can rotate with the air guide plate 200 to be above the second hook 13 so that the first hook 230 abuts against the second hook 13. In this way, through the arrangement of the first hook 230 and the second hook 13, when the first hook 230 of the first engaging part 210 and the second hook 13 of the first rotating groove 11 abut against each other for a limiting engagement, the air guide plate 200 moves to the limiting point. That is, at this time, the angle between the air guide plate 200 and the second transmission member 30 is the largest, that is, the arrangement of the first hook 230 and the second hook 13 can realize the limiting of the air guide plate 200 and facilitate the reciprocating motion of the air guide plate 200. Similarly, when the first hook 230 of the second latching part 220 and the second hook 13 of the second rotating groove 12 abut against each other for a limiting engagement, the air guide plate 200 moves to the limiting point. That is, at this time, the angle between the air guide plate 200 and the second transmission member 30 is the largest. In other words, the arrangement of the first hook 230 and the second hook 13 can limit the opening angle of the air guide plate 200 and facilitate the reciprocating motion of the air guide plate 200.

[0146] It can be configured such that the second claw 13 in the first rotating groove 11 is located on the side of the first rotating groove 11 close to the second rotating groove 12, and the second claw 13 in the second rotating groove 12 is located on the side of the second rotating groove 12 close to the first rotating groove 11.

[0147] The first hook 230 can be configured as any of the following shapes: triangle, rectangle, or trapezoid. When the first hook 230 is configured as a trapezoid, the longer base of the trapezoid is connected to the pivot, and the shorter base is positioned away from the corresponding pivot. This allows the air guide plate 200 to have a large rotation angle when the first hook 230 and the second hook 13 are engaged, making it easier for the first hook 230 to engage with the second hook 13 and improving its stability. Simultaneously, the longer base of the trapezoid being connected to the pivot and the shorter base being positioned away from the corresponding pivot improves the structural strength of the first hook 230, further enhancing its stability when engaged with the second hook 13.

[0148] The first rotating groove 11 or the second rotating groove 12 is provided with an arc-shaped guide surface 191, which guides the air guide plate 200 during rotation. The first hook 230 rotates along the extension direction of the guide surface 191 until it abuts against the second hook 13. Since the thermal expansion and contraction of the material of the drive assembly 100 will directly cause the drive assembly 100 to jam during operation, the open arrangement of the first rotating groove 11 and the second rotating groove 12 can prevent the drive assembly 100 from jamming due to thermal expansion and contraction during the rotation of the air guide plate 200.

[0149] In some embodiments, when the air guide plate 200 is rotated open from a closed state and reaches a first preset rotation angle, the first hook 230 abuts against the second hook 13, and the second hook 13 begins to hook onto the first pawl and begins to bear the force of the air guide shaft. The air guide plate 200 continues to be pushed and rotated by the first transmission rod 40 until it reaches a second preset rotation angle. During the period when the air guide plate 200 rotates from the first preset rotation angle to the second preset rotation angle, the first hook 230 and the second hook 13 remain in abutting engagement.

[0150] When the air guide plate 200 rotates to the second preset rotation angle, the first hook 230 remains in contact with the second hook 13. The second hook 13 bears the force during the rotation of the air guide plate 200, and has a redundant design function. That is, if the second transmission component 30 breaks or is directly removed, the second hook 13 will still support the air guide plate 200. The air guide plate 200 will not fall and injure the user, improving the reliability and safety of the drive assembly 100.

[0151] In some embodiments, the second transmission member 30 is provided with baffle portions 31 at both ends. The baffle portions 31 can be selectively moved to the corresponding first rotating groove 11 or second rotating groove 12. The baffle portions 31 are used to close or partially close the first rotating groove 11 or the second rotating groove 12 so as to engage the first snap-fit ​​portion 210 or the second snap-fit ​​portion 220 at the first rotating groove 11 or the second rotating groove 12.

[0152] In other words, a baffle portion 31 is provided on the second transmission component 30, so that the baffle portion 31 can close or partially close the first rotating groove 11 or the second rotating groove 12, thereby closing the first rotating shaft 240 in the first rotating groove 11 or closing the second rotating shaft 250 in the second rotating groove 12, thereby causing the first locking portion 210 to rotate around the first rotating shaft 240 in the first rotating groove 11 or the second locking portion 220 to rotate around the second rotating shaft 250 in the second rotating groove 12, thereby realizing the rotation of the air guide plate 200.

[0153] By providing the baffle portion 31, the baffle portion 31 and the second hook 13 reinforce each other, thereby allowing the second hook 13 to share the force of the first hook 230 on the second transmission member 30, thus preventing the baffle portion 31 and the second hook 13 from breaking.

[0154] The housing 10 has a third locking part 16 at both ends, and the second transmission member 30 has a fourth locking part 32 at both ends. The third locking part 16 and the fourth locking part 32 selectively engage during the sliding of the second transmission member 30 to fix the second transmission member 30.

[0155] The connection between the second transmission member 30 and the housing 10 is achieved through the engagement between the third engaging portion 16 and the fourth engaging portion 32, thereby strengthening the force exerted by the baffle portion 31 on the first rotating groove 11 and the second rotating groove 12. Specifically, when the third engaging portion 16 is inserted into the fourth engaging portion 32, the second transmission member 30 is fixed by the housing 10 due to the engagement of the third engaging portion 16 and the fourth engaging portion 32, preventing the second transmission member 30 from moving relative to the housing 10. This ensures that the baffle portion 31 can always engage at either the first rotating groove 11 or the second rotating groove 12.

[0156] In some embodiments, the end of the baffle portion 31 away from the second transmission member 30 is provided with a chamfer, so that the baffle portion 31 can have a certain contact slope with the rotating shaft, ensuring that the rack can lock the rotating shaft more smoothly.

[0157] The third engaging portion 16 can be a slot, and the fourth engaging portion 32 can be a hook. Alternatively, the third engaging portion 16 can be a hook, and the fourth engaging portion 32 can be a slot. The second transmission component 30 and the housing 10 are fixed by the engaging engagement between the hook and the slot.

[0158] In some embodiments, the drive assembly 100 further includes a third transmission member 50, which is sandwiched between the first transmission member 20 and the second transmission member 30 and is respectively connected to the first transmission member 20 and the second transmission member 30 in a transmission manner. That is, a third transmission member 50 is also provided between the first transmission member 20 and the second transmission member 30, and the third transmission member 50 can perform a transmission function. Specifically, when the drive member drives the first transmission member 20, the first transmission member 20 can drive the third transmission member 50, and the third transmission member 50 then drives the second transmission member 30, causing the second transmission member 30 to slide between the first rotating groove 11 and the second rotating groove 12. The second transmission member 30 moves to one end of the guide vane 200 to engage with the rotating shaft at one end of the guide vane 200.

[0159] The third transmission component 50 can be a Geneva wheel, which has a first tooth 51 and a mating hole 52. The mating hole 52 and the first tooth 51 are spaced apart. The second transmission component 30 has a second tooth 33. The first tooth 51 and the second tooth 33 mesh. The second tooth 33 is the transmission input structure of the first transmission component 20. To ensure transmission smoothness and assembly gripping safety, the tooth tips of the standard teeth of the second tooth 33 are rounded.

[0160] The first transmission member 20 is provided with a mating post 21, which selectively mates with the mating hole 52. The grooved wheel is provided with a mating hole 52, and the first transmission member 20 is provided with a mating post 21, so that the mating post 21 will rotate with the first transmission member 20 and rotate until it slides into the mating hole 52, thereby driving the grooved wheel to rotate.

[0161] The first transmission component 20 includes a first stage 24 and a second stage 25, wherein the rotation axes of the first stage 24 and the second stage 25 are the same. A third tooth 22 is provided on the first stage 24.

[0162] The main drive component 300 is configured as a gear, and the main drive component 300 meshes with the third tooth 22 on the first level 24. The main drive component 300 drives the first transmission component 20 to rotate, and the third tooth 22 and the main drive component 300 are connected by gear meshing.

[0163] A mating post 21 is provided on the second level 25. A first level 24 and a second level 25 are provided on the first transmission member 20, so that the mating post 21 and the third tooth 22 are not at the same height, thereby avoiding interference between the mating post 21 and the third tooth 22. The first and second levels are integrally formed.

[0164] The first transmission member 20 has a flange 26 on the second stage 25, and the third transmission member 50 has a recessed surface 53, which is recessed toward the axis of the third transmission member 50.

[0165] The recessed surface 53 is disposed between the first tooth portion 51 and the mating hole 52, that is, the recessed surface 53 alternates between the first tooth portion 51 and the mating hole 52. It is possible to provide two recessed surfaces 53, with the two recessed surfaces 53 respectively disposed on both sides of the mating hole 52.

[0166] When the first transmission member 20 rotates clockwise or counterclockwise by a certain angle, its flange 26 will engage with the recessed surface 53 of the grooved wheel. When the mating post 21 slides out of the mating hole 52, the flange 26 engages with the recessed surface 53 to restrict the rotation of the third transmission member 50. Simultaneously, as the first transmission member 20 continues to rotate clockwise or counterclockwise, the flange 26 slides relative to the recessed surface 53, and the grooved wheel will no longer follow its rotation, thus achieving the function of limiting and locking the grooved wheel. Furthermore, during the rotation of the grooved wheel, the second transmission member 30, through its transmission connection with the grooved wheel, will also follow the linear motion. When the first transmission member 20 continues to rotate until the flange 26 engages with the recessed surface 53 and locks the grooved wheel, the second transmission member 30 is correspondingly limited and locked. At this time, the air guide plate 200 is in the open state. The first engaging portion 210 of the second transmission member 30 slides to engage with the first hook 230, or the second engaging portion 220 of the second transmission member 30 slides to engage with the second hook 13. By limiting the movement of the second transmission member 30 in the sliding direction of the flange 26 and the recessed surface 53, it is possible to prevent the first engaging portion 210 of the second transmission member 30 from disengaging from the first hook 230, or to prevent the second engaging portion 220 of the second transmission member 30 from disengaging from the second hook 13.

[0167] In some embodiments, a recessed groove 27 is provided on the flange 26 of the second layer 25, and the recessed groove 27 is recessed toward the rotation axis of the first transmission member 20. A mating post 21 is disposed in the recessed groove 27.

[0168] The first transmission member 20 rotates to bring the mating post 21 into contact with the mating hole 52, and the mating post 21 slides into the mating hole 52. The first transmission member 20 rotates to drive the Geneva wheel to rotate. The mating post 21 first slides towards the axis of rotation of the Geneva wheel in the mating hole 52, and then slides out of the mating hole 52 away from the axis of rotation of the Geneva wheel.

[0169] The point at which the mating post 21 rotates to make initial contact with the Geneva wheel is defined as the first mating point M, and the point at which the mating post 21 rotates to disengage from the Geneva wheel is defined as the second mating point N. The rotation angle of the mating post 21 from point M to point N is defined as ∠MAN.

[0170] The two ends of the first slide 15 are points H and G, respectively, and the angle from point H to point G of the first axis 41 is defined as ∠HAG.

[0171] If the angle ∠MAN is too small, the mating post 21 of the first transmission component 20 will slide into the mating hole 52 of the third transmission component 50 too shallowly. Furthermore, due to gaps in the mold components or dimensional tolerances in the product, the driving force and driving area of ​​the first transmission component 20 on the third transmission component 50 will be insufficient. Setting ∠MAN and HAG to satisfy 8≤∠HAG / ∠MAN≤12 ensures that the sliding stroke of the mating post 21 of the first transmission component 20 after sliding into the mating hole 52 of the third transmission component 50 meets the requirements of the driving force and driving area of ​​the first transmission component 20 on the third transmission component 50, thus ensuring the reliable operation of the drive assembly 100.

[0172] In some embodiments, the housing 10 includes: a first housing 18 and a second housing 19, the first housing 18 being connected to the second housing 19; a first transmission member 20 being movably connected to the first housing 18, the first transmission member 20 being rotatable relative to the first housing 18; and a first sliding groove 15 being disposed on the second housing 19.

[0173] In some embodiments, the rotation axis of the third transmission member 50 is defined as point P. The distance from the center of the mating post 21 to the rotation axis of the first transmission member 20 is R1, and the distance from the center of the mating post 21 to the rotation center of the second transmission member 30 is R2. The distance from the rotation axis of the first transmission member 20 to the rotation center of the second transmission member 30 is R3. This satisfies: R3 = R1 * cos(∠MPN / 2) + R2 * (∠MAN / 2).

[0174] When the air guide plate 200 rotates from the closed state to the maximum angle, the sliding stroke of the second transmission component 30 is h, which satisfies h=2πr*[(∠MPN / 2) / 360°].

[0175] In some embodiments, the second transmission member 30 is provided with a first limiting portion 37 and a second limiting portion 38 at both ends, which can selectively abut against both ends of the housing 10. The first limiting portion 37 can slide to abut against one end of the housing 10 to limit the second transmission member 30, prevent the second transmission member 30 from continuing to slide, avoid excessive sliding displacement of the second transmission member 30 causing it to slide out of the housing 10, and prevent the space outside the housing 10 from restricting the operation of the drive assembly 100 after the second transmission member slides out of the housing 10.

[0176] The housing 10 is provided with a limiting rod 17, and the second transmission member 30 is provided with a limiting hole 34. The limiting rod 17 is disposed in the limiting hole 34, and the second transmission member 30 can slide along the length direction of the limiting rod 17.

[0177] The limiting rod 17 can lock the vertical translational and rotational degrees of freedom of the second transmission member 30. The flange 26 on the first transmission member 20 and the recessed surface 53 on the third transmission member 50 cooperate to restrict the degree of freedom of the second transmission member 30 in the sliding direction. The first limiting part 37 and the second limiting part 38 redundantly lock the degree of freedom of the second transmission member 30 in the sliding direction, solving the problem of the second transmission member 30 retraction and unreliable locking caused by the gap between the teeth of the second transmission member 30.

[0178] The limiting rod 17 can be set as a long straight rod, and the length of the limiting rod 17 is defined as L1. The limiting hole 34 is set as a long straight hole, and the length of the limiting hole 34 is defined as L2. When the air guide plate 200 is closed, the limiting rod 17 is located in the middle of the limiting hole 34.

[0179] When the first shaft 41 slides to one of the two ends of the first slide groove 15, gaps 35 are provided between the two ends of the limiting rod 17 in the length direction and the limiting hole 34, satisfying L2>L1, so as to avoid limiting the sliding distance of the limiting rod 17 on the second transmission member 30, and to avoid the problem that the second transmission member 30 cannot effectively engage the rotating shaft of the air guide plate 200 due to insufficient sliding distance of the second transmission member 30.

[0180] When the first shaft 41 slides to one end of the first slide groove 15, the second sliding member engages the rotating shaft of the air guide plate 200 in the first rotating groove 11 or the second rotating groove 12. The engaged rotating shaft abuts against the second transmission member 30. The second transmission member 30 provides support for the rotating shaft of the air guide plate 200 that abuts against it. The point where the engaged rotating shaft abuts against the second transmission member 30 is the support point 36.

[0181] The air guide plate 200 can rotate around the pivots at both ends, so the second transmission member 30 has two support points 36. The distance between the support points 36 at both ends of the second transmission member 30 is defined as L3, and the length of the second transmission member 30 is defined as L4. The second transmission member 30 extends from one of the support points 36 in a direction away from the limiting rod 17, such that L4 > L3.

[0182] Optionally, the support point 36 may be provided on the baffle portion 31. In other embodiments, the support point 36 may not be provided on the baffle portion 31.

[0183] In order to make the second transmission component 30 have better guiding properties, the length relationship between L1 and L4 is satisfied: 2L1≤L4≤3L1, so that the length dimension of the second transmission component 30 can have sufficient sliding stroke to achieve the snapping of the air guide plate 200, while the sliding stroke is not too large, which would result in the inability to effectively snap one end of the air guide plate 200.

[0184] In some embodiments, the distance between the axes of the two ends of the second transmission member 30 is L5. When the air guide plate 200 is in the closed state, the length L4 of the second transmission member 30 is greater than or equal to the distance L5 between the axes of the two ends of the second transmission member 30, so that the air guide plate 200 can be effectively abutted by the second transmission member 30 in the closed state, preventing the axis of the air guide plate 200 from detaching from the housing 10. At the same time, when the air guide plate 200 rotates, the second transmission member 30 slides and engages one end of the air guide plate 200 with the housing 10, preventing the air guide plate 200 from detaching from the housing 10 when rotating, thereby improving the operational reliability of the drive assembly 100.

[0185] In some embodiments, the limiting rod 17 is provided with an oil reservoir 39, which is located on at least one side of the limiting rod 17 near the first transmission member 20 or away from the first transmission member 20. The oil reservoirs 39 are spaced apart along the length direction of the limiting rod 17.

[0186] The oil reservoir 39 can be configured as a rectangular groove, with the oil reservoir 39 recessed towards the inside of the limiting rod 17. The configuration of the oil reservoir 39 reduces the contact area between the second transmission member 30 and the limiting rod 17, thereby reducing the frictional resistance of the sliding of the second transmission member 30 and improving the kinematic performance of the second transmission member 30.

[0187] The depth of the oil reservoir 39 ranges from 0.1 to 0.8 mm, and it is used to store lubricating grease. The oil reservoir 39 ensures that during the long-term operation of the drive assembly 100, the lubricating grease applied to the contact surface between the limit rod 17 and the second transmission component 30 and participating in friction is gradually consumed. The lubricating grease in the reservoir 39 slowly seeps out and, with the reciprocating motion between the components of the drive assembly 100, is applied to the friction surface between the limit rod 17 and the second transmission component 30, greatly improving the reliability of the drive assembly 100. During the reciprocating motion of the second transmission component 30, some of the seeped-out lubricating grease is collected back into the oil reservoir 39, reducing lubricating grease loss.

[0188] At least one end of the length of the second transmission member 30 is provided with a protrusion 391, which is arranged adjacent to the oil reservoir 39. The protrusion 391 can be provided on at least one side of the limiting rod 17, either on the side closer to the first transmission member 20 or on the side farther away from the first transmission member 20, thereby helping to ensure that the oil reservoir 39 at the end of the second transmission member 30 still has the function of storing lubricating grease.

[0189] The second transmission member 30 and the third transmission member 50 work together to achieve a rapid forward and backward movement. As the mating post 21 slides within the mating hole 52 towards the rotation axis of the third transmission member 50, the angular velocity of the third transmission member 50 gradually increases. Conversely, as the mating post 21 slides out of the mating hole 52 away from the rotation axis of the third transmission member 50, the angular velocity of the third transmission member 50 gradually decreases. When the air guide plate 200 closes the heat exchange outlet, the mating post 21 rotates to be closest to the rotation axis of the third transmission member 50. That is, when the air guide plate 200 starts to rotate and open the heat exchange outlet from its closed state, the angular velocity of the third transmission member 50 is at its maximum. In other words, when the first transmission member 20 moves at a very small angle, the grooved wheel can rotate at a large angle, causing the flange 26 to engage with the recessed surface 53 of the grooved wheel to achieve self-locking. Meanwhile, because the grooved wheel rotates at a large angle, the second transmission member 30 slides a large displacement distance through the transmission with the grooved wheel. That is, after the first transmission member 20 runs at a very small angle, the second transmission member 30 can run to engage with the rotating shaft at one end of the air guide plate 200, and engage the first engaging part 210 or the second engaging part 220 of the air guide plate 200 with the first rotating groove 11 or the second rotating groove 12.

[0190] At this time, the first transmission component 20 drives the first transmission rod 40 to only travel a very small stroke, exhibiting slow and lagging extension and retraction. The combination of the rapid forward and backward motion mechanism and the slow and lagging motion mechanism has a significant advantage in maintaining the engagement position of the first engagement part 210 or the second engagement part 220 of the air guide plate 200. It can cause the motion sequence of the two motion mechanisms to be misaligned, thereby ensuring that after the second transmission component 30 engages with the first engagement part 210 or the second engagement part 220, the rotation angle of the air guide plate 200 is small, ensuring the reliability of the air guide plate 200 motion mechanism and avoiding the problem of the air guide plate 200 rotating out of the first rotating groove 11 or the second rotating groove 12 before the second transmission component 30 moves to the engagement position.

[0191] A microswitch 400 is provided on the housing 10, and the microswitch 400 is electrically connected to the drive component. A mating protrusion 23 is provided on the first layer 24, and the mating protrusion 23 selectively contacts the microswitch 400 to control the drive component to stop. The function of the microswitch 400 is to sense the time state of the return to the center position of the first transmission component 20, and at the same time determine that the air guide plate 200 has returned to the center position of the off state. Its operating logic is as follows: when the air conditioner is in the off state, the drive component drives the main drive component 300 to rotate clockwise, and the main drive component 300 drives the first transmission component 20 to rotate counterclockwise. The controller records the number of step pulses X + X*10% steps for the given drive component. When the drive component 100 reaches the position of X steps, the motor will continue to stall for X*10% steps. Its function is to eliminate the motion error of the drive component 100, the step loss error of the drive component, and the motion error caused by other uncontrollable external factors, so as to ensure that the mechanism moves in place. When the shutdown procedure is initiated, the drive unit drives the main drive unit 300 to rotate in the opposite direction. When the center position protrusion of the first transmission unit 20 touches the contact of the micro switch 400 during its return to the center position, the controller stops supplying pulses to the drive unit, and the system detects that it is in the shutdown state. The cooling mode is the opposite.

[0192] In some embodiments, in order to improve the load-bearing capacity of the drive assembly 100 and prevent the wind guide plate 200 from falling due to insufficient torque when the drive assembly 100 operates to the upper and lower limit positions of the open state, a first slide groove 15 is provided on the housing 10. A first shaft 41 and a second shaft 42 are provided at both ends of the first transmission rod 40. The first shaft 41 slides in the first slide groove 15, and the second shaft 42 slides in the second slide groove 61.

[0193] When the first transmission component 20 rotates clockwise from the closed state of the air guide plate 200, the second shaft 42 moves along the second slide groove 61 from point L, which is away from the rotation axis of the first transmission component 20, towards the rotation axis of the first transmission component 20. Since the end of the second slide groove 61 that is closer to the rotation axis of the first transmission component 20 is closer to the rotation axis of the first transmission component 20 than point H, it is equivalent to reducing the motion lever arm of the four-bar linkage. This improves the load-bearing capacity of the drive assembly 100 at the upper and lower limit positions of the air guide plate 200 when it is open, which are at points with larger torque. This provides a guarantee for increasing the weight of the air guide plate 200 and widening the width of the air guide plate 200.

[0194] The following describes the operating modes of the air conditioner:

[0195] In heating mode: the driving component drives the first transmission component 20 to rotate counterclockwise, and the second transmission component 30 moves towards the second locking part 220 under the drive of the grooved wheel. The second locking part 220 is locked by the second locking part 220 and the third locking part 16, while the first locking part 210 is released. The second transmission rod 60, the first transmission rod 40, and the air guide plate 200 at the bottom layer of the first transmission component 20 form a four-bar linkage mechanism. Pushing the air guide plate 200 to flip upward, the air conditioner starts to blow air, which is guided downward by the air guide plate 200.

[0196] In cooling mode: the drive component drives the first transmission component 20 to rotate clockwise, and the second transmission component 30 moves towards the first locking part 210 under the drive of the grooved wheel. The first locking part 210 is locked by the first locking part 210 and the fourth locking part 32, while the second locking part 220 is released. The second transmission rod 60, the first transmission rod 40, and the air guide plate 200 at the bottom layer of the first transmission component 20 form a four-bar linkage mechanism. Pushing the air guide plate 200 downward to flip it over, the air conditioner starts to blow air, and the air guide plate 200 guides the air upward.

[0197] Oscillating air supply mode: In heating mode, after the air guide plate 200 swings to the limit position, it controls normal air supply. When the user presses the air conditioner remote control or other media to request the air guide plate 200 to swing and supply air, the stepper motor reverses a certain number of steps X, and the air guide plate 200 rotates counterclockwise X steps to reach the preset point and stops running. Then the motor rotates forward, and the air guide plate 200 moves clockwise X steps to return to the heating limit position. This logic repeats for 15 minutes and then starts the limit position reset program: when the air guide plate 200 reaches the preset point, the motor rotates forward, and the air guide plate 200 moves clockwise X steps to return to the heating dead point position, and continues to rotate X*10% to stall, in order to better complete the reset action.

[0198] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0199] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; 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 explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0200] In this invention, the terms "first," "second," and "third" 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. Thus, a feature defined as "first," "second," or "third" may explicitly or implicitly include one or more of that feature.

[0201] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0202] In this invention, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0203] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. An indoor unit for an air conditioner, characterized in that, include: The casing has a heat exchange air outlet. An air guide plate is provided at the heat exchange outlet. The air guide plate has a rotating shaft at each end. The air guide plate can rotate around the rotating shaft to open or close the heat exchange outlet. A drive assembly, disposed within the housing, includes: The housing is provided with a first sliding groove; The first transmission component is rotatably connected inside the housing; The second transmission component is connected to the first transmission component in a transmission manner; The second transmission rod has one end connected to the first transmission component, and the second transmission rod is provided with a second sliding groove; The first transmission rod has one end slidably connected to the second groove of the second transmission rod, and the other end movably connected to the first position in the middle of the air guide plate; The first transmission rod is provided with a first shaft and a second shaft, the first shaft is disposed in the first slide groove, and the second shaft is disposed in the second slide groove; When the first transmission component drives the second transmission rod to rotate, the first shaft slides in the first slide groove, the second shaft slides in the second slide groove, and the second transmission component can be engaged with the rotating shaft at one end of the air guide plate; the first transmission rod pushes the air guide plate to rotate around the rotating shaft engaged with the second transmission component; The linear velocity at the first position in the middle of the air guide plate is v2; The point where the extension of the second transmission rod along its length and the perpendicular line to the linear velocity v2 intersect is defined as point O; The distance L between the rotation axis of the first transmission component and point O is... OA ; The distance from the first position to point O is L OC ; The distance R between the center of the first shaft and the rotational center of the first transmission component is... AB ; The distance between the axis of the rotating shaft and the first position in the middle of the air guide plate is R. DC ; The angular velocity of the air guide plate is ω DC ; The distance from the center of the first shaft to the first position is L. BC ; The angular velocity of the first transmission component is ω1; Through ω DC L BC ω1 and R DC Preset values, and L combined with measurements OA and L OC Logical relationship calculations are performed on the length to determine the R value when the air guide plate rotates. AB length.

2. The indoor unit of the air conditioner according to claim 1, characterized in that, The distance from the center of the first axis to point O is L. OB ; The logical relationship is as follows: v2=ω DC ×R DC ;v2=ω BC ×L OC ;v1=ω BC ×L OB ;v1=ω1×R AB ;L OA =L OB +R AB ; The R value when the air guide plate rotates is determined by calculation based on the logical relationship. AB length.

3. The indoor unit of the air conditioner according to claim 1, characterized in that, Also includes: A third transmission component is disposed between the first transmission component and the second transmission component, and the third transmission component is connected to both the first transmission component and the second transmission component in a transmission connection. When the first transmission component rotates, it can drive the third transmission component to rotate. The rotation of the third transmission component drives the second transmission component to move toward one end of the air guide plate, so as to engage with the rotating shaft at one end of the air guide plate.

4. The indoor unit of the air conditioner according to claim 3, characterized in that, The first transmission component includes: a first stage and a second stage, wherein the rotation axes of the first stage and the second stage are the same; The first layer is provided with a third tooth, which is connected to the driving component and drives the first transmission component to rotate.

5. The indoor unit of the air conditioner according to claim 4, characterized in that, A micro switch is provided on the housing, and the micro switch is electrically connected to the driving component. A mating protrusion is provided on the first layer, and the mating protrusion selectively contacts the micro switch to control the driving component to stop. When the first rotating member rotates to drive the mating protrusion to contact the micro switch, the driving member stops operating; When the first rotating member rotates to disengage the mating protrusion from the micro switch, the driving member starts to operate.

6. The indoor unit of the air conditioner according to claim 3, characterized in that, The housing is provided with a limiting rod, and the second transmission member is provided with a limiting hole. The limiting rod is disposed in the limiting hole, and the second transmission member can slide along the length direction of the limiting rod.

7. The indoor unit of the air conditioner according to claim 3, characterized in that, The third transmission component is a grooved wheel, which has a first tooth and a mating hole. The mating hole and the first tooth are spaced apart. The second transmission component has a second tooth, which mates with the first tooth. The first transmission component has a mating post, which mates with the mating hole selectively.

8. The indoor unit of the air conditioner according to claim 7, characterized in that, The first transmission member rotates to make the mating post contact the mating hole, and the mating post slides into the mating hole; the first transmission member rotates to make the mating post push the grooved wheel to rotate. The mating post first slides towards the axis of rotation of the grooved wheel within the mating hole, and then slides out of the mating hole away from the axis of rotation of the grooved wheel.

9. The indoor unit of the air conditioner according to claim 1, characterized in that, The housing includes: a first housing and a second housing, the first housing being connected to the second housing; the first transmission member being connected to the first housing, and the first sliding groove being disposed on the second housing; The first groove includes multiple arc grooves, and the ends of the multiple arc grooves are tangentially connected.

10. The indoor unit of the air conditioner according to claim 1, characterized in that, The rotating shaft includes a first rotating shaft and a second rotating shaft. The two ends of the housing are respectively provided with a first rotating groove and a second rotating groove that cooperate with the first rotating shaft and the second rotating shaft. When the first rotating shaft is engaged in the first rotating groove, the air guide plate rotates around the first rotating shaft; when the second rotating shaft is engaged in the second rotating groove, the air guide plate rotates around the second rotating shaft.

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