Panel transmission mechanism and air conditioner

Abstract

The panel transmission mechanism comprises a driver, a first connecting rod and a second connecting rod, the driver is provided with a first driving connecting piece and is in transmission connection with the first driving connecting piece, the first connecting rod comprises a transmission arm and a second driving connecting piece, one end of the transmission arm is connected with the second driving connecting piece, and the other end of the transmission arm is connected with the second driving connecting piece. The first connecting rod is provided with a first driving connecting piece, the other end of the first connecting rod is provided with a first rotating connecting piece, the first driving connecting piece is in transmission connection with a second driving connecting piece, the second connecting rod is provided with a second rotating connecting piece, the first rotating connecting piece is rotationally connected with the second rotating connecting piece, and the second driving connecting piece is provided with a rotating connecting shaft; after the first driving connecting piece drives the second driving connecting piece to rotate around the rotating connecting shaft, the second connecting rod is driven to swing back and forth along with the transmission arm, panel driving is achieved through a simple connecting rod structure, occupied space in the air conditioner is greatly reduced, and the panel is driven by the second connecting rod and the first connecting rod to move in an arc shape.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioners, and in particular to a panel transmission mechanism and an air conditioner. Background Art

[0002] In modern home environments, air conditioners are important devices for regulating indoor temperature. Their performance and user experience are directly related to consumer satisfaction. With the advancement of technology and the improvement of people's quality of life, the design of air conditioners is becoming more and more intelligent, humanized and efficient. Among them, preventing cold air from blowing directly on the human body has become an important consideration in air conditioner design, especially for the elderly, children and the weak, as direct cold air can easily cause physical discomfort.

[0003] In the prior art, in order to solve the problem of direct cold air blowing, air conditioner manufacturers generally design a panel transmission mechanism on the front of the air conditioner. These panels change the airflow direction to achieve horizontal or dispersed airflow, thereby effectively preventing the cold air from blowing directly onto the human body. However, the existing panel transmission mechanism mostly adopts a lifting structure. Although this design has achieved the effect of preventing direct blowing to a certain extent, the lifting structure needs to occupy a large space inside the air conditioner. In addition, the existing wind wheel has low power. In order to increase the air output of the air conditioner, a larger and more powerful fan needs to be used, thereby further reducing the space inside the air conditioner where the panel transmission mechanism can be installed. Summary of the invention

[0004] In order to overcome at least one of the defects of the above-mentioned prior art, the present invention provides a panel transmission mechanism and an air conditioner, which can solve the problems that the lifting structure of the prior art occupies a large space inside the air conditioner, and the air conditioner needs to be equipped with a higher-power fan, resulting in a smaller space inside the air conditioner for installing the panel transmission mechanism.

[0005] The technical solution adopted by the present invention to solve the problem is:

[0006] A panel transmission mechanism, comprising:

[0007] A driver, wherein the driver has a first driving connection member, and the driver is drivingly connected to the first driving connection member;

[0008] The first connecting rod is a crank structure, the first connecting rod comprises a transmission arm and a second driving connecting member, one end of the transmission arm is fixedly connected to the second driving connecting member, and the other end is provided with a first rotating connecting member, and the first driving connecting member is drivingly connected to the second driving connecting member;

[0009] a second connecting rod, wherein a second rotating connecting member is provided on the second connecting rod, the first rotating connecting member is rotatably connected to the second rotating connecting member, and a panel is fixed to the second connecting rod;

[0010] The second driving connection member is provided with a rotating connection shaft, and the first driving connection member drives the second driving connection member to rotate around the rotating connection shaft to drive the reciprocating swing of the transmission arm, and the transmission arm drives the second connecting rod and the panel to move up, down, forward and backward in an arc trajectory.

[0011] By adopting the above scheme, the panel is driven by a simple connecting rod structure. Compared with the traditional lifting mechanism, the space occupied inside the air conditioner is greatly reduced. The transmission mechanism is conducive to the miniaturization design of the air conditioner as a whole, and the transmission mechanism structure is relatively simple, with fewer mechanical parts, which reduces the complexity of manufacturing and assembly. More importantly, during the movement of the panel, it is necessary to move upward to open the air outlet at the bottom of the air conditioner for air outlet, and it is also necessary for the panel to move forward relative to the air conditioner body so that there is a gap between the panel and the air conditioner body to form an air duct, thereby achieving the effect of multi-faceted air outlet and anti-direct blowing. And the second connecting rod is driven by the first connecting rod, and the movement trajectory of the second connecting rod is arc-shaped. In the arc-shaped movement, the upward and forward movement steps are completed synchronously. Compared with the transmission mechanism of the prior art, which first moves forward and then moves upward in two-stage motion, the transmission mechanism structure is simpler, further reducing the overall volume of the transmission mechanism.

[0012] Further, the first driving connection member is an output gear, and the second driving connection member is a turntable, a portion of the outer circumference of the turntable has a fan-shaped arc surface extending outward, the fan-shaped arc surface of the turntable is provided with teeth meshing with the output gear, and the transmission arm is fixedly connected to the side of the turntable facing away from the fan-shaped arc surface.

[0013] By adopting the above scheme, more stable power transmission can be achieved through the meshing of the output gear and the turntable, and the matching mode of the gear and the teeth has higher transmission efficiency and smaller volume, making the entire transmission mechanism more compact, thereby better adapting to the spatial layout inside the air conditioner.

[0014] Further, when the transmission arm is in an initial state, an angle between a line connecting the axis of the rotating connection shaft and the axis of the first rotating connection member and a vertical line is 0 to 10 degrees.

[0015] By adopting the above scheme, the rotating connecting shaft is set at the axis of the turntable. Compared with the traditional toothed crank-connecting rod transmission method, the power arm and the resistance arm of the first connecting rod are not on the same straight line. This arrangement can effectively shorten the length of the first connecting rod, making it less likely to warp and deform when bearing loads and being exposed to cold or heat, thereby enhancing the strength and stability of the entire structure. Compared with the traditional toothed crank-connecting rod transmission method, this method not only reduces the length of the connecting rod, but also improves the rigidity of the connecting rod, ensuring the reliability of the transmission mechanism after long-term use.

[0016] The angle between the line connecting the axes of the first rotating connector and the vertical line is 0 to 10 degrees. Compared with the structure located vertically below the axis of the turntable, the force arm of the force output end of the first connecting rod is reduced, so that the output torque is also reduced accordingly, that is, the torque that the motor needs to overcome when starting is reduced, which reduces the burden on the motor and thus extends the service life of the motor. At the same time, due to the reduction in starting torque, a motor with lower power and smaller size can be selected, further saving installation space.

[0017] Furthermore, the rotating connecting shaft is located on the rotating axis of the rotating disk, and the reduction ratio between the teeth of the sector-shaped arc surface and the output gear is 3-4.

[0018] By adopting the above solution, the increase in the reduction ratio makes it easier for the motor to overcome the inertia of the load when starting, thereby reducing the impact and torque requirement during starting.

[0019] Furthermore, the distance from the rotation axis of the rotating disk to the first rotating connector is X, and the distance from the center of the rotating disk to the teeth is Y, wherein X:Y=1-2.

[0020] By adopting the above scheme, the distance from the center of the turntable to the first rotating connecting member is the resistance arm, and the distance from the center of the turntable to the tooth is the power arm. Since the panel needs to perform upward and forward movements, the transmission mechanism needs to complete the specified distance change in a limited space. By setting the ratio of X:Y=1~2, it can be ensured that the movement path of the connecting rod mechanism meets the design requirements while ensuring the movement distance of the panel, so that the panel can accurately complete the predetermined movement trajectory. In addition, by adjusting the ratio of X:Y, the relationship between the power arm (Y) and the resistance arm (X) can be balanced while keeping the movement distance of the panel unchanged, so that the connecting rod is more labor-saving when moving, reducing the demand for the starting torque of the motor, thereby reducing the workload of the motor.

[0021] Furthermore, the fan-shaped arc surface is a semicircular arc surface, one side of the fan-shaped arc surface extends to the transmission arm, and the fan-shaped arc surface and the transmission arm are an integrally formed structure.

[0022] Furthermore, the extension line of the transmission arm in the length direction passes through the perpendicular midline of the sector-shaped arc surface, and the second driving connector and the transmission arm are an integrally formed structure.

[0023] Furthermore, it also includes a third connecting rod, one end of which is provided with a fixed rotating shaft, and the other end of the third connecting rod is provided with a movable rotating shaft. The third connecting rod is rotatably connected to the second connecting rod via the movable rotating shaft, and the first connecting rod and the third connecting rod are arranged in parallel, so that when the transmission arm drives the second connecting rod to move, the third connecting rod moves synchronously with the transmission arm around the fixed rotating shaft.

[0024] By adopting the above solution, a third link is added, and the third link is arranged parallel to the first link, which can provide an additional support point and force transmission path for the second link. When the first link drives the second link to move, the synchronous movement of the third link and the first link helps to maintain the stability and balance of the second link, and reduce the vibration or deviation caused by uneven force on a single link.

[0025] Furthermore, the distance between the fixed rotation axis and the movable rotation axis of the third connecting rod is equal to the distance between the second driving connecting member provided with a rotation connecting axis and the first rotation connecting member.

[0026] Furthermore, it also includes a mounting seat, the rotating connecting shaft is rotatably connected to the mounting seat, the mounting seat is provided with a limiting wall, and when the output gear drives the teeth of the turntable to rotate to the meshing limit distance between the output gear and the teeth of the turntable, the transmission arm abuts against the limiting wall.

[0027] By adopting the above solution and setting a limit wall, when the teeth of the turntable and the output gear reach the limit distance of engagement, the transmission arm contacts the limit wall to prevent further rotation that may cause tooth disengagement, thereby ensuring that the transmission system will not lose engagement under any circumstances, thereby ensuring the continuity and reliability of the transmission.

[0028] In addition, by setting the number of teeth on the turntable, the movement distance of the transmission arm can be accurately controlled to ensure that the panel can complete the upward and forward movement according to the predetermined trajectory, meeting the functional requirements while avoiding the panel being out of place or excessive movement due to the mismatch of the movement distance. The selection of the number of teeth directly affects the size of the turntable. A reasonable design of the number of teeth can ensure that the turntable meets the transmission requirements while not being too large, thereby reducing the space occupied by the turntable itself and providing more installation space for other air conditioning components.

[0029] Furthermore, the rotating connecting shaft is a first mounting pin, and the second driving connecting member is provided with a first assembly hole that rotatably cooperates with the first mounting pin; the first rotating connecting member is a third mounting pin, and the second rotating connecting member is a second assembly hole that rotatably cooperates with the third mounting pin.

[0030] The present invention also provides an air conditioner, comprising a middle frame and a panel transmission mechanism as described above installed on the middle frame, wherein a heat exchanger and the mounting seat are installed in the middle frame, and a gap between the heat exchanger and the mounting seat is 10-20 mm.

[0031] Furthermore, when the output gear drives the teeth of the fan-shaped arc surface to rotate to the limit engagement distance of the output gear and the teeth of the fan-shaped arc surface, the upper edge of the panel is flush with the upper edge of the middle frame, and there is a gap of 5-15mm between the upper edge of the panel and the upper edge of the middle frame.

[0032] In summary, the panel transmission mechanism and air conditioner provided by the present invention have the following technical effects:

[0033] 1. By adopting a connecting rod mechanism to replace the traditional lifting structure, the rotation of the second driving connection member can be converted into the reciprocating swing of the transmission arm only through the crank structure of the first connecting rod, and then the panel is driven to move up and down and forward and backward in an arc track through the second connecting rod. The structure is simple and the mechanical parts are few, which greatly reduces the space occupied inside the air conditioner, contributes to the overall miniaturization design of the air conditioner, and provides more installation space for the installation of high-power fans in the air conditioner. The transmission mechanism made of the crank connecting rod and the driving wheel can synchronously realize the forward and upward movement of the panel, and the transmission mechanism has a large transmission ratio, and the output end of the crank connecting rod has a small output torque, so as to realize the small starting torque of the transmission mechanism, extend the life of the motor, and use a smaller power motor, which is smaller in size and occupies less space.

[0034] 2. The transmission mechanism has a relatively simple structure and fewer mechanical parts, which reduces the complexity of the manufacturing and assembly process, reduces costs, and facilitates maintenance.

[0035] 3. During the movement of the panel, it is necessary to move upward to open the air outlet at the bottom of the air conditioner, and it is also necessary for the panel to move forward to leave a gap between the panel and the air conditioner body to form an air duct. This not only achieves multi-faceted air outlet, but also avoids cold wind blowing directly on the human body, thereby improving the user's comfort. Driven by the first connecting rod, the second connecting rod of the present application has an arc-shaped motion trajectory, which can synchronously complete the upward and forward movements during the same movement process. Compared with the traditional two-stage (first forward and then upward) transmission mechanism, the transmission mechanism of the present application has a large transmission ratio due to the crank structure of the first connecting rod, and a smaller power and smaller volume driver can be used to drive the first connecting rod to move, further reducing the volume of the transmission mechanism. In addition, the first connecting rod adopts a crank structure, and at startup, the output end of the transmission arm has a small output torque, thereby realizing a small starting torque of the transmission mechanism, which is beneficial to extend the life of the motor. Furthermore, the arc-shaped motion trajectory of the panel will not produce an inflection point, will not produce noise, and the panel moves more naturally and smoothly. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a schematic diagram of the three-dimensional structure of Example 1 of the present invention;

[0037] Figure 2 This is a schematic diagram of the structure of the first connecting rod in Example 1 of the present invention moving to the limit state;

[0038] Figure 3 This is a schematic diagram of the explosion structure of Example 1 of the present invention;

[0039] Figure 4 This is a schematic diagram of the state structure of the transmission mechanism connection panel of Example 1 of the present invention;

[0040] Figure 5 This is a schematic diagram of the explosion structure of an air conditioner according to Embodiment 1 of the present invention;

[0041] Figure 6 is a cross-sectional view of an air conditioner according to embodiment 1 of the present invention;

[0042] Figure 7 This is a schematic diagram of the first connecting rod structure of Example 1 of the present invention;

[0043] Figure 8 It is a side view structural schematic diagram of embodiment 1 of the present invention;

[0044] Fig. 9 A comparison diagram of the output torque curve of the simulation animation demonstration motion state of Example 1 of the present invention

[0045] Fig.10 This is a schematic diagram of the exploded structure of the first connecting rod and the mounting seat of Example 1 of the present invention;

[0046] Fig.11 It is a schematic diagram of the three-dimensional structure of the panel transmission mechanism of Example 2 of the present invention;

[0047] Fig.12 This is a schematic diagram of the exploded structure of the panel transmission mechanism of Example 2 of the present invention;

[0048] Fig.13 This is a schematic structural diagram of the coordinated state of the driver and the first connecting rod of Example 2 of the present invention.

[0049] Among them, the meanings of the figure marks are as follows: 1. driver; 11. first drive connector; 2. first connecting rod; 21. transmission arm; 211. first rotating connector; 22. second drive connector; 221. first assembly hole; 2211. limiting convex strip; 3. second connecting rod; 31. second assembly hole; 32. third assembly hole; 4. mounting seat; 41. limiting wall; 5. third connecting rod; 6. first mounting pin; 61. wide diameter portion; 62. narrow diameter portion; 621. limiting edge; 622. deformation gap; 7. second mounting pin; 8. fourth mounting pin; 9. air conditioner; 91. panel; 92. middle frame; 93. convex edge; 94. heat exchanger. DETAILED DESCRIPTION

[0050] For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described and discussed below in conjunction with the accompanying drawings of the present invention. Obviously, what is described here is only a part of the examples of the present invention, not all the examples. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0051] In order to facilitate the understanding of the embodiments of the present invention, the following will be further explained by taking specific embodiments as examples in conjunction with the drawings, and each embodiment does not constitute a limitation on the embodiments of the present invention.

[0052] In the description of the present invention, it should be noted that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the present invention.

[0053] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0054] Example 1

[0055] See also Figure 1-Figure 3The present invention discloses a panel transmission mechanism, including a driver 1, a first connecting rod 2 and a second connecting rod 3; the driver 1 has a first driving connection member 11, and the driver 1 is in transmission connection with the first driving connection member 11. The first connecting rod 2 is a crank structure, and the first connecting rod 2 includes a transmission arm 21 and a second driving connection member 22, one end of the transmission arm 21 is fixedly connected with the second driving connection member 22, and the other end is provided with a first rotating connection member 211, and the first driving connection member 11 is in transmission connection with the second driving connection member 22. The second connecting rod 3 is provided with a second rotating connection member, and the first rotating connection member 211 is rotationally connected with the second rotating connection member, and the second connecting rod 3 is fixed with a panel 92. The second driving connection member 22 is provided with a rotating connection shaft, and the first driving connection member 11 drives the second driving connection member 22 to rotate around the rotating connection shaft to drive the reciprocating swing of the transmission arm 21, and the transmission arm 21 drives the second connecting rod 3 and the panel to move up and down and forward and backward in an arc track.

[0056] Specifically, the driving member has a first driving connection member 11, which is used to output the power of the driving member to drive the first connecting rod 2 to rotate around the rotating connection axis. The first connecting rod 2 includes a transmission arm 21 and a second driving connection member 22, one end of the transmission arm 21 is fixedly connected to the second driving connection member 22, and the other end is provided with a first rotating connection member 211. The types of the first driving connection member 11 and the second driving connection member 22 are not limited here, and they can drive the first connecting rod 2 to rotate around the rotating connection axis. A rotating connection point is provided in the middle of the first connecting rod 2 to keep the first connecting rod 2 in a stable posture, thereby ensuring the stability of the transmission effect between the driver 1, the first connecting rod 2 and the second connecting rod 3. The second connecting rod 3 is provided with a second rotating connection member, and the first rotating connection member 211 is rotatably connected to the second rotating connection member, wherein the specific structure of the first rotating connection member 211 and the second rotating connection member is not limited here, and the first connecting rod 2 can drive the second connecting rod 3 to move, and the second connecting rod 3 can rotate around the first rotating connection member 211. The second connecting rod 3 is used to assemble the panel 91, thereby driving the panel 91 to reciprocate and swing along with the reciprocating swing of the first connecting rod 2, and the reciprocating swing refers to the reciprocating circular arc motion of the first connecting rod 2 during the rotation of the rotating connecting shaft. That is, in the arc motion trajectory, the panel 91 is required to move forward and upward at the same time. The rotating connecting shaft can be specifically a shaft hole and a rotating shaft to achieve the effect of the first connecting rod 2 rotating around the rotating connecting shaft.

[0057] In addition, refer to Figure 5 and Figure 6As shown, in the air conditioner 9 using the transmission mechanism, in order to ensure the multi-faceted air outlet effect of the air conditioner 9, that is, the air outlet sends the wind to the panel 91, the wind moves around along the gap between the panel 91 and the middle frame 92, and when it moves to the edge of the middle frame 92, the edge of the middle frame 92 will be provided with a convex edge 93 to guide the wind to turn toward the horizontal direction of the air conditioner 9. When the air conditioner 9 is not in use, the panel 91 is installed in the groove surrounded by the convex edges 93 around the middle frame 92, so in the movement trajectory of the panel 91 opening, it is necessary to consider the interference of crossing the convex edge 93, so the prior art will first drive the panel 91 to move forward to ensure that when the panel 91 moves upward. There will be no interference with the convex edge 93. The transmission mechanism of the present application drives the panel 91 in an arc motion, which can simultaneously complete the forward and upward movements, making the transmission mechanism structure simpler and further reducing the overall volume of the transmission mechanism.

[0058] The working principle of the above structure is:

[0059] Reference Figure 1-Figure 4 As shown, the driver 1 works, and the power is transmitted to the second drive connector 22 through the transmission connection between the first drive connector 11 and the second drive connector 22. Since a rotating connecting shaft is provided on the second drive connector 22, and the second drive connector 22 rotates around the rotating connecting shaft, the second drive connector 22 and the transmission arm 21 connected to the second drive connector 22 rotate around the rotating connecting shaft. During the rotation of the transmission arm 21, based on the rotation connection between the first rotating connector 211 and the second rotating connector, the second connecting rod 3 is driven to rotate around the first rotating connector 211 (keeping the second connecting rod 3 always vertically downward to ensure the posture of the panel 91), and at the same time, it makes an arc motion around the rotating connector, and the panel 91 is assembled on the second connecting rod 3, thereby driving the panel 91 to make an arc motion.

[0060] It should be noted that the aforementioned forward movement is movement in a direction away from the middle frame 92 of the air conditioner 9 , and the upward movement is movement in a direction above the air conditioner 9 .

[0061] See also Figure 2 and Figure 3 As shown, in some embodiments, the first drive connector 11 is an output gear, the second drive connector 22 is a turntable, part of the outer circumference of the turntable has a fan-shaped arc surface extending outward, the fan-shaped arc surface of the turntable is provided with teeth meshing with the output gear, and the transmission arm 21 is fixedly connected to the side of the turntable facing away from the fan-shaped arc surface).

[0062] Specifically, the first driving connecting member 11 is an output gear, that is, the first driving connecting member 11 adopts a gear structure, and correspondingly, the driver 1 that drives the output gear to rotate can adopt a motor, and the second driving connecting member 22 is a turntable, and part of the outer circumference of the turntable extends outward with a fan-shaped arc surface, and one side of the fan-shaped arc surface of the turntable is provided with teeth that mesh with the output gear. Through the meshing of the teeth of the output gear and the fan-shaped arc surface, more stable power transmission can be achieved, and the matching mode of the gear and the teeth has a higher transmission efficiency and a smaller volume, making the entire transmission mechanism more compact, so that it can better adapt to the spatial layout inside the air conditioner 9. And the turntable adopts a fan shape, so that the appropriate size of the fan can be selected according to the needs, so that the turntable can not only meet the requirements of the movement distance of the panel 91, but also control the size of the turntable as much as possible, thereby reasonably controlling the size of the first connecting rod 2.

[0063] See also Figure 7 As shown, in some embodiments, when the transmission arm 21 is in the initial state, the angle between the line between the axis of the rotating connection shaft and the axis of the first rotating connection member 211 and the vertical line is 0 to 10 degrees.

[0064] Specifically, the rotating connecting shaft is set at the axis of the turntable. Compared with the traditional toothed crank-connecting rod transmission method, the power arm and the resistance arm of the first connecting rod 2 are not on the same straight line. This arrangement can effectively shorten the length of the first connecting rod 2, making it less likely to warp and deform when it is under load or when it is exposed to cold or heat, thereby enhancing the strength and stability of the entire structure. Compared with the traditional toothed crank-connecting rod transmission method, this method not only reduces the length of the connecting rod, but also improves the rigidity of the connecting rod, ensuring the reliability of the transmission mechanism after long-term use.

[0065] The angle between the line connecting the axes of the first rotating connector 211 and the vertical line is 0 to 10 degrees. Compared with being located vertically below the axis of the turntable, this structure reduces the force arm of the force output end of the first connecting rod 2, thereby reducing the output torque accordingly, that is, the torque that the motor needs to overcome when starting is reduced, reducing the burden on the motor and thus extending the service life of the motor. At the same time, due to the reduction in starting torque, a motor with lower power and smaller size can be selected, further saving installation space.

[0066] See also Figure 8 As shown, in some embodiments, in order to overcome the load inertia during motor drive by adjusting the reduction ratio, the rotating connecting shaft is located on the rotation axis of the turntable, and the reduction ratio of the teeth of the fan-shaped arc surface to the output gear is 3 to 4, wherein the reduction ratio of the turntable to the output gear is optimally 3.6, thereby making it easier for the motor to overcome the load inertia during startup, thereby reducing the impact and torque requirements during startup.

[0067] In some embodiments, the distance from the rotation axis of the turntable to the first rotating connector 211 is X, and the distance from the center of the turntable to the teeth is Y, wherein X:Y=1-2.

[0068] Specifically, in the first connecting rod 2, the distance from the center of the turntable to the first rotating connecting member 211 is X, that is, the resistance arm, and the distance from the center of the turntable to the tooth is Y, that is, the power arm. Since the panel 91 needs to perform upward and forward movement, the transmission mechanism needs to complete the specified distance change in a limited space. By setting the ratio of X:Y=1~2, among which X:Y=3:2 is the best, this ratio can ensure that the movement path of the connecting rod mechanism meets the design requirements while ensuring the movement distance of the panel 91, so that the panel 91 can accurately complete the predetermined movement trajectory. In addition, by adjusting the ratio of X:Y, the relationship between the power arm (Y) and the resistance arm (X) can be balanced while keeping the movement distance of the panel 91 unchanged, so that the connecting rod is more labor-saving when moving, reducing the demand for the starting torque of the motor, thereby reducing the workload of the motor.

[0069] In this embodiment, the reduction ratio of the turntable and the output gear is 3.6, and the distance from the center of the turntable to the first rotating connector 211 is X, and the distance from the center of the turntable to the tooth is Y, wherein X:Y=3:2. In the initial state, the panel 91 is embedded in the groove surrounded by the flange 93 at a position of 10 mm, and the minimum distance between the panel 91 and the middle frame 92 is 10 mm, so as to reserve deformation space for the large-format panel 91 due to thermal expansion and contraction. In the above case, when the first connecting rod 2 moves until the upper surface of the panel 91 is flush with the upper surface of the flange 93, the panel 91 can be pushed forward 19 mm and rise 10 mm at the same time. The panel 91 maintains a certain distance from the flange 93, which can ensure normal air outlet and reserve deformation space for the thermal expansion and contraction of the first connecting rod 2 and the panel 91. And combined with Fig. 9 As shown in the figure, under normal friction environment, the starting torque only needs 76N·m and the peak torque only needs 170N·m, which not only reduces the starting torque and peak torque, but also improves the efficiency of the transmission system. The motor can convert electrical energy into mechanical energy more efficiently when working, reducing energy loss and thus reducing energy consumption. Lower starting torque and peak torque reduce the pressure on the system during startup and operation, help extend the service life of the motor and other components in the transmission mechanism, and reduce maintenance costs. More importantly, smaller torque requirements enable the use of smaller motors, thereby reducing the overall volume occupied by the transmission mechanism.

[0070] In this embodiment, in order to improve the overall strength and precision of the first connecting rod 2 and facilitate the installation of the first connecting rod 2, the fan-shaped arc surface is a semicircular arc surface, one side of the fan-shaped arc surface extends to the transmission arm 21, and the fan-shaped arc surface and the transmission arm 21 are an integrally formed structure.

[0071] See also Figure 1-3 As shown, in some embodiments, a third link 5 is further included, one end of the third link 5 is provided with a fixed rotating shaft, the other end of the third link 5 is provided with a movable rotating shaft, the third link 5 is rotatably connected to the second link 3 through the movable rotating shaft, the first link 2 and the third link 5 are arranged in parallel, so that when the transmission arm 21 drives the second link 3 to move, the third link 5 moves synchronously with the transmission arm 21 around the fixed rotating shaft.

[0072] Specifically, a third link 5 is added parallel to the first link 2, and the connection structure between the third link 5 and the second link 3 can be the same as the connection structure between the first link 2 and the second link 3. The third link 5 can provide an additional support point and force transmission path for the second link 3. When the first link 2 drives the second link 3 to move, the synchronous movement of the third link 5 and the first link 2 helps to maintain the stability and balance of the second link 3 and reduce the vibration or deviation caused by uneven force on a single link.

[0073] Furthermore, the distance between the fixed rotation axis and the movable rotation axis of the third connecting rod 5 is equal to the distance between the second driving connecting member 22 and the first rotating connecting member 211, thereby ensuring the stability of the first connecting rod 2 and the third connecting rod 5 when driving the second connecting rod 3 to move.

[0074] See also Figure 8 As shown, in some embodiments, a mounting base 4 is further included, the rotating connecting shaft is rotatably connected to the mounting base 4, and the mounting base 4 is provided with a limiting wall 41. When the output gear drives the teeth of the turntable to rotate to the meshing limit distance of the output gear and the teeth of the turntable, the transmission arm 21 abuts against the limiting wall 41.

[0075] Specifically, the mounting base 4 can facilitate the installation of the first connecting rod 2 and the third connecting rod 5, and by setting a limiting wall 41, when the teeth of the turntable are engaged with the output gear to a limit distance, the transmission arm 21 contacts the limiting wall 41 to prevent further rotation that may cause tooth disengagement, thereby ensuring that the transmission system will not lose engagement under any circumstances, thereby ensuring the continuity and reliability of the transmission.

[0076] In addition, by setting the number of teeth on the turntable, the movement distance of the transmission arm 21 can be accurately controlled to ensure that the panel 91 can complete the upward and forward movement according to the predetermined trajectory, meeting the functional requirements while avoiding the panel 91 from being out of place or excessive movement due to the mismatch of the movement distance. The selection of the number of teeth directly affects the size of the turntable. A reasonable design of the number of teeth can ensure that the turntable is not too large while meeting the transmission requirements, thereby reducing the space occupied by the turntable itself and providing more installation space for other air conditioner 9 components.

[0077] In some embodiments, the rotating connecting shaft is a first mounting pin 6, and the second driving connecting member 22 is provided with a first assembly hole 221 that rotates to cooperate with the first mounting pin 6; the first rotating connecting member 211 is a third mounting pin, and the second rotating connecting member is a second assembly hole 31 that rotates to cooperate with the third mounting pin.

[0078] Specifically, the rotating connecting shaft is the first mounting pin 6, the first mounting pin 6 is arranged on the mounting seat 4, the second driving connecting member 22 is provided with a first assembly hole 221 that rotates to cooperate with the first mounting pin 6, and the corresponding point, the first rotating connecting member 211 is the third mounting pin, and the second rotating connecting member is the second assembly hole 31 that rotates to cooperate with the third mounting pin.

[0079] The present invention also provides an air conditioner 9, comprising a middle frame 92 and a panel transmission mechanism as described above installed on the middle frame 92, wherein a heat exchanger 9494 and the mounting seat 4 are installed in the middle frame 92, and a gap between the heat exchanger 9494 and the mounting seat 4 is 10-20 mm.

[0080] Specific reference Figure 6 As shown, in the present embodiment, due to the use of a high-power heat exchanger 9494, there is space for installing the panel transmission mechanism only above the side of the middle frame 92 close to the panel 91, and in order to ensure that there is no collision between the panel transmission mechanism and the heat exchanger 94, a gap of 10-20 mm is reserved between the panel transmission mechanism and the heat exchanger 94. In the present embodiment, based on the structure of the optimized panel transmission mechanism, 16 mm can be reserved between the panel transmission mechanism and the heat exchanger 94. Normally, 8 mm needs to be reserved to completely avoid interference between the panel transmission mechanism and the heat exchanger 94.

[0081] Further, when the output gear drives the teeth of the fan-shaped arc surface to rotate to the meshing limit distance of the output gear and the teeth of the fan-shaped arc surface, the upper edge of the panel 91 is flush with the upper edge of the middle frame 92, and the gap between the upper edge of the panel 91 and the upper edge of the middle frame 92 is 5-15mm. The gap between the upper edge of the panel 91 and the upper edge of the middle frame 92 is used to ensure smooth air flow. In this embodiment, the gap between the upper edge of the panel 91 and the upper edge of the middle frame 92 is 10mm, which can effectively prevent the deformation of the first connecting rod 2, the panel 91 and other components due to thermal expansion and contraction from affecting the normal air flow and the normal transmission of the panel transmission mechanism.

[0082] Also, see Fig.10 As shown, in some embodiments, a first mounting pin 6 is provided on the mounting seat 4, and a limiting edge 621 and a deformation gap 622 are provided at one end of the first mounting pin 6 away from the mounting seat 4, the limiting edge 621 is provided on the outer wall of the first mounting pin 6, and the deformation gap 622 is provided along the axial direction of the first mounting pin 6, and the second driving connecting member 22 is provided with a first assembly hole 221 at the position of the rotating connecting shaft, and a limiting convex strip 2211 is provided on the inner wall of the first assembly hole 221, and the first mounting pin 6 is inserted into the first assembly hole 221, and the limiting edge 621 is clamped with the limiting convex strip 2211, and the deformation gap 622 is used for the limiting edge 621 to elastically contract toward the axial direction of the first mounting pin 6 when the limiting edge 621 passes through the first assembly hole 221.

[0083] Specifically, by designing the limiting edge 621 and the deformation gap 622 on the first mounting pin 6, the first mounting pin 6 can be conveniently inserted into the first assembly hole 221. The deformation gap 622 can be a cross shape, a cross shape, etc., so that the limiting edge 621 can pass over the limiting step. The limiting edge 621 is engaged with the limiting convex strip 2211 in the first assembly hole 221, ensuring that the first mounting pin 6 will not loosen or fall off after installation, thereby improving the stability of the entire transmission mechanism and preventing transmission failure or malfunction due to loose components.

[0084] See also Figure 2 As shown, in some embodiments, in order to prevent the first mounting pin 6 from interfering with the movement of the second connecting rod 3 , the first mounting pin 6 may be designed to be sunken, that is, the first mounting pin 6 is located in the first assembly hole 221 .

[0085] In some embodiments, the first mounting pin 6 includes a wide diameter portion 61 and a narrow diameter portion 62 , the wide diameter portion 61 is connected to the narrow diameter portion 62 , the wide diameter portion 61 is fixedly connected to the mounting seat 4 , and the limiting edge 621 and the deformation gap 622 are both provided in the narrow diameter portion 62 .

[0086] Specifically, the deformation gap 622 is provided in the narrow diameter portion 62 to facilitate installation by utilizing the elastic deformation of the narrow diameter portion itself, and the deformation gap 622 is not provided in the wide diameter portion 61, thereby ensuring the structural strength of the wide diameter portion 61. The wide diameter portion 61 is fixedly connected to the mounting seat 4, thereby enhancing the strength and stability of the first mounting pin 6, and the design of the wide diameter portion 61 avoids the large-area contact between the first connecting rod 2, the third connecting rod 5 or the second connecting rod 3 installed on the first mounting pin 6 and the entire first mounting pin 6, thereby reducing the friction caused by the large-area contact. Even if the first mounting pin 6 is slightly deformed during the installation process, it does not affect the rotational connection performance between the first connecting rod 2 and the mounting seat 4, thereby ensuring the smooth operation of the transmission mechanism.

[0087] In some embodiments, the first rotating connecting member 211 is a third mounting pin, the third mounting pin has the same structure as the first mounting pin 6, the second rotating connecting member is a second assembly hole 31, the third mounting pin is set through the second assembly hole 31, and the third mounting pin is rotatably connected to the second assembly hole 31.

[0088] Specifically, in order to facilitate the assembly of the second connecting rod 3, the first rotating connecting member 211 is a third mounting pin, and the third mounting pin has the same structure as the first mounting pin 6, and the second rotating connecting member is a second assembly hole 31. The third mounting pin is set through the second assembly hole 31, and the third mounting pin and the second assembly hole 31 are rotatably connected.

[0089] On the structural basis of the transmission mechanism being provided with the third connecting rod 5, in order to facilitate the assembly of the third connecting rod 5, one end of the third connecting rod 5 is rotatably connected to the mounting seat 4, and the other end is rotatably connected to the second connecting rod 3. The first connecting rod 2 and the third connecting rod 5 are arranged in parallel. The mounting seat 4 is also provided with a second mounting pin 7. The second mounting pin 7 has the same structure as the first mounting pin 6, and the second mounting pin 7 is rotatably connected to the third connecting rod 5.

[0090] Correspondingly, in order to prevent the second mounting pin 7 from interfering with the movement of the second connecting rod 3, the second mounting pin 7 may also be designed to be sunken.

[0091] Furthermore, on the structural basis of the transmission mechanism with a third connecting rod 5, in order to facilitate the connection between the third connecting rod 5 and the second connecting rod 3, a fourth mounting pin 8 is provided at one end where the third connecting rod 5 is connected to the second connecting rod 3. The fourth mounting pin 8 has the same structure as the first mounting pin 6, and the second connecting rod 3 is provided with a third assembly hole 32 which is rotatably connected to the fourth mounting pin 8.

[0092] Example 2

[0093] This embodiment is based on the structure of embodiment 1. Figure 11-13 As shown, the extension line of the transmission arm 21 in the length direction passes through the perpendicular midline of the sector-shaped arc surface, and the second driving connector 22 and the transmission arm 21 are an integrally formed structure.

[0094] Specifically, compared with Example 1, the extension line of the transmission arm 21 in its length direction passes through the perpendicular bisector of the fan-shaped arc surface, that is, the length of the first connecting rod 2 is the sum of the perpendicular bisectors of the transmission arm 21 and the fan-shaped arc surface, and the total length of the first connecting rod 2 is longer. Correspondingly, the first connecting rod 2 can drive the second connecting rod 2 to move a longer distance at a smaller rotation angle, that is, there is no need to set more teeth on the fan-shaped arc surface of the second driving connecting member 22, thereby reducing the size of the second driving connecting member 22.

[0095] The working principle of the above structure is:

[0096] The driver 1 works, and the power is transmitted to the transmission arm 21 through the transmission connection between the first driving connector 11 and the second driving connector 22. The second driving connector 22 and the transmission arm 21 of the second link 3 are acted upon by the rotating connecting shaft, and rotate around the rotating connecting shaft as the rotating axis. During the rotation of the first link 2, based on the rotation connection relationship between the first link 2 and the second link 3 through the first rotating connector 211 and the second rotating connector, the transmission arm 21 drives the second link 3 to move with the rotation of the first link 2, so that the second link 3 realizes arc motion under the rotation of the first link 2, and then drives the panel 91 installed on the second link 3 to move in an arc.

[0097] The technical means disclosed in the scheme of the present invention are not limited to the technical means disclosed in the above-mentioned implementation mode, but also include technical schemes composed of any combination of the above-mentioned technical features. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications are also regarded as the protection scope of the present invention.

Claims

1. A panel transmission mechanism, characterized in that: include: A driver, wherein the driver has a first driving connection member, and the driver is drivingly connected to the first driving connection member; The first connecting rod is a crank structure, the first connecting rod comprises a transmission arm and a second driving connecting member, one end of the transmission arm is fixedly connected to the second driving connecting member, and the other end is provided with a first rotating connecting member, and the first driving connecting member is drivingly connected to the second driving connecting member; a second connecting rod, wherein a second rotating connecting member is provided on the second connecting rod, the first rotating connecting member is rotatably connected to the second rotating connecting member, and a panel is fixed to the second connecting rod; The second driving connection member is provided with a rotating connection shaft, and the first driving connection member drives the second driving connection member to rotate around the rotating connection shaft to drive the reciprocating swing of the transmission arm, and the transmission arm drives the second connecting rod and the panel to move up, down, forward and backward in an arc trajectory.

2. A panel transmission mechanism according to claim 1, characterized in that: The first driving connection member is an output gear, and the second driving connection member is a turntable. Part of the outer circumference of the turntable has a fan-shaped arc surface extending outward, and the fan-shaped arc surface of the turntable is provided with teeth meshing with the output gear. The transmission arm is fixedly connected to the side of the turntable facing away from the fan-shaped arc surface.

3. A panel transmission mechanism according to claim 1, characterized in that: When the transmission arm is in an initial state, an angle between a line connecting the axis of the rotating connection shaft and the axis of the first rotating connection member and a vertical line is 0 to 10 degrees.

4. A panel transmission mechanism according to claim 2, characterized in that: The rotating connecting shaft is located on the rotating axis of the rotating disk, and the reduction ratio between the teeth of the sector-shaped arc surface and the output gear is 3-4.

5. A panel transmission mechanism according to claim 2, characterized in that: The distance from the rotation axis of the rotating disk to the first rotating connecting member is X, and the distance from the center of the rotating disk to the tooth is Y, wherein X:Y=1-2.

6. A panel transmission mechanism according to any one of claims 2 to 5, characterized in that: The fan-shaped arc surface is a semicircular arc surface, one side of the fan-shaped arc surface extends to the transmission arm, and the fan-shaped arc surface and the transmission arm are an integrally formed structure.

7. A panel transmission mechanism according to any one of claims 2 to 5, characterized in that: The extension line of the transmission arm in the length direction passes through the perpendicular midline of the sector-shaped arc surface, and the second driving connecting member and the transmission arm are an integrally formed structure.

8. A panel transmission mechanism according to any one of claims 1 to 5, characterized in that: It also includes a third connecting rod, one end of which is provided with a fixed rotating shaft, and the other end of the third connecting rod is provided with a movable rotating shaft. The third connecting rod is rotatably connected to the second connecting rod via the movable rotating shaft, and the first connecting rod and the third connecting rod are arranged in parallel, so that when the transmission arm drives the second connecting rod to move, the third connecting rod moves synchronously with the transmission arm around the fixed rotating shaft.

9. A panel transmission mechanism according to any one of claim 8, characterized in that: The distance between the fixed rotation axis and the movable rotation axis of the third connecting rod is equal to the distance between the second driving connecting member having the rotation connecting axis and the first rotating connecting member.

10. A panel transmission mechanism according to any one of claims 2 to 5, characterized in that: It also includes a mounting seat, the rotating connecting shaft is rotatably connected to the mounting seat, the mounting seat is provided with a limiting wall, and when the output gear drives the teeth of the turntable to rotate to the meshing limit distance of the output gear and the teeth of the turntable, the transmission arm abuts against the limiting wall.

11. A panel transmission mechanism according to any one of claims 1 to 5, characterized in that: The rotating connecting shaft is a first mounting pin, and the second driving connecting member is provided with a first assembly hole that is rotatably matched with the first mounting pin; the first rotating connecting member is a third mounting pin, and the second rotating connecting member is a second assembly hole that is rotatably matched with the third mounting pin.

12. An air conditioner, characterized in that: The invention comprises a middle frame and a panel transmission mechanism as claimed in claims 1 to 11 installed on the middle frame, wherein a heat exchanger and the mounting seat are installed in the middle frame, and a gap between the heat exchanger and the mounting seat is 10 to 20 mm.

13. The air conditioner according to claim 12, characterized in that: When the output gear drives the teeth of the fan-shaped arc surface to rotate to the maximum engagement distance of the output gear and the teeth of the fan-shaped arc surface, the upper edge of the panel is flush with the upper edge of the middle frame, and the gap between the upper edge of the panel and the upper edge of the middle frame is 5 to 15 mm.

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