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, the driver 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 utility model relates to air conditioning technical field especially, relate to a panel drive mechanism and air conditioner. BACKGROUND

[0002] In modern home environment, air conditioner as the important equipment of adjusting indoor temperature, its performance and user experience are directly related to the satisfaction of consumer. Along with the progress of science and technology and the improvement of people's life quality requirement, the design of air conditioner tends to be intelligent, humanized and efficient more and more. Among them, preventing cold wind direct blowing human body becomes an important consideration in air conditioner design, especially for the old, children and weak, cold wind direct blowing can easily cause physical discomfort.

[0003] In prior art, to solve the problem of cold wind direct blowing, air conditioner manufacturers generally design panel drive mechanism on the front of air conditioner. These panels change the air outlet direction of airflow, realize horizontal or dispersed air outlet of airflow, thereby effectively avoid cold wind direct blowing to human body. However, the existing panel drive mechanism mostly adopts lifting structure, this design although reaches the effect of preventing direct blowing to a certain extent, but the lifting structure needs to occupy larger space inside air conditioner, superimposes the small power of existing wind wheel, in order to increase the air volume of air conditioner, it is necessary to adopt large power fan with larger volume, thereby further reducing the space inside air conditioner that can be used for installing panel drive mechanism. UTILITY MODEL CONTENTS

[0004] In order to overcome at least one defect described in the prior art, the utility model provides a panel drive mechanism and air conditioner, which can solve the problem that the lifting structure of the prior art occupies large space inside the air conditioner, and the air conditioner needs to be assembled with a larger power fan, causing the space inside the air conditioner for installing the panel drive mechanism to be smaller.

[0005] The utility model adopts the technical scheme that:

[0006] A panel drive mechanism, comprising:

[0007] A driver has a first driving connecting piece, and the driver is in driving connection with the first driving connecting piece;

[0008] The first connecting rod is a crank structure, comprising a driving arm and a second driving connecting piece, one end of the driving arm is fixedly connected with the second driving connecting piece, the other end is provided with a first rotating connecting piece, and the first driving connecting piece is in driving connection with the second driving connecting piece;

[0009] A second connecting rod is provided with a second rotating connecting piece, the first rotating connecting piece is in rotating connection with the second rotating connecting piece, and the second connecting rod is fixedly provided with a panel;

[0010] The second driving connecting piece is provided with a rotating connecting shaft, the first driving connecting piece drives the second driving connecting piece to rotate around the rotating connecting shaft, so as to drive the reciprocating swing of the transmission arm, and the transmission arm drives the up-down and back-forth movement of the second connecting rod and the panel in an arc trajectory.

[0011] By adopting the above scheme, the driving of the panel is realized through a simple connecting rod structure, compared with the traditional lifting mechanism, the space occupation in the air conditioner is greatly reduced, the transmission mechanism is conducive to the miniaturization design of the air conditioner body, and the transmission mechanism is relatively simple in structure, the mechanical components are reduced, and the complexity of manufacturing and assembly is reduced. More importantly, during the movement of the panel, it needs to move upwards to open the air outlet at the lower part of the air conditioner for air outlet, and the panel also needs to move forward relative to the air conditioner body to leave a gap between the panel and the air conditioner body to form an air duct, thereby realizing multi-face air outlet and preventing 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, and in the arc movement, the upward and forward movement steps are completed synchronously, compared with the two-stage movement transmission mechanism of the prior art, the transmission mechanism is more simple in structure, and the overall volume of the transmission mechanism is further reduced.

[0012] Further, the first driving connecting piece is an output gear, the second driving connecting piece is a rotating disc, a fan-shaped arc surface extends outward from part of the outer periphery of the rotating disc, the fan-shaped arc surface of the rotating disc is provided with teeth that mesh with the output gear, and the side of the rotating disc opposite to the fan-shaped arc surface is fixedly connected with the transmission arm.

[0013] By adopting the above scheme, through the meshing of the output gear and the teeth of the rotating disc, more stable power transmission can be realized, and the matching mode of the gear and the teeth has high transmission efficiency and small volume, so that the whole transmission mechanism is more compact, thereby better adapting to the space layout inside the air conditioner.

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

[0015] By adopting the above scheme, the rotating connecting shaft is arranged at the axis of the rotating disc, compared with the traditional toothed crank connecting rod transmission mode, 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, so that it is not easy to warp and deform when bearing load and being cold and hot, thereby enhancing the strength and stability of the whole structure. Compared with the traditional toothed crank connecting rod transmission mode, this mode 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 shaft centers of the first rotary connecting members and the vertical line is 0-10 degrees, compared to the vertical line below the shaft center of the rotary disc, which makes the force arm of the force output end of the first connecting rod decrease, so that the output torque also decreases accordingly, that is, the torque that the motor needs to overcome when starting is smaller, which reduces the burden of the motor, thereby prolonging the service life of the motor. At the same time, due to the reduction of the starting torque, a motor with lower power and smaller size can be selected, further saving installation space.

[0017] Further, the rotary connecting shaft is located on the rotary axis of the rotary disc, and the gear ratio of the teeth of the fan-shaped arc surface to the output gear is 3-4.

[0018] By adopting the above scheme, the increase of the gear ratio makes it easier for the motor to overcome the inertia of the load when starting, thereby reducing the impact and torque demand when starting.

[0019] Further, the distance from the rotary axis of the rotary disc to the first rotary connecting member is X, and the distance from the center of the rotary disc to the teeth is Y, wherein X:Y=1-2.

[0020] By adopting the above scheme, the distance from the center of the rotary disc to the first rotary connecting member is the resistance arm, and the distance from the center of the rotary disc to the teeth is the power arm. Since the panel needs to perform upward and forward movements, that is, the transmission mechanism needs to complete the specified distance change in a limited space, by setting the ratio of X:Y=1-2, the movement path of the connecting rod mechanism can be ensured to meet the design requirements on the premise of ensuring the movement distance of the panel, so that the panel can accurately complete the predetermined movement track. And 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 motor starting torque, thereby reducing the working load of the motor.

[0021] Further, 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 integral molding structure.

[0022] Further, the transmission arm passes through the perpendicular bisector of the fan-shaped arc surface in the length direction of the transmission arm, and the second driving connecting member and the transmission arm are an integral molding structure.

[0023] Further, a third connecting rod is arranged, one end of the third connecting rod is provided with a fixed rotating shaft, the other end of the third connecting rod is provided with a movable rotating shaft, the third connecting rod is rotatably connected with the second connecting rod through the movable rotating shaft, and the first connecting rod is arranged in parallel with the third connecting rod, 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 scheme, the third connecting rod is arranged in parallel with the first connecting rod, and the third connecting rod can provide an additional supporting point and a power transmission path for the second connecting rod. When the first connecting rod drives the second connecting rod to move, the synchronous movement of the third connecting rod and the first connecting rod helps to keep the stability and balance of the second connecting rod, and reduces vibration or deviation caused by uneven force on a single connecting rod.

[0025] Further, the distance between the fixed rotating shaft and the movable rotating shaft of the third connecting rod is equal to the distance between the rotating connecting shaft of the second driving connecting piece and the first rotating connecting piece.

[0026] Further, a mounting seat is arranged, the rotating connecting shaft is rotatably connected with the mounting seat, the mounting seat is provided with a limiting wall, and when the output gear drives the teeth of the rotating disc to rotate to the limit distance of meshing of the teeth of the output gear and the rotating disc, the transmission arm abuts against the limiting wall.

[0027] By adopting the above scheme, when the teeth of the rotating disc mesh with the output gear to the limit distance, the transmission arm contacts the limiting wall, so that the tooth disengagement phenomenon caused by further rotation is prevented, and the meshing of the transmission system is ensured in any case, and the continuity and reliability of the transmission are ensured.

[0028] In addition, by setting the number of teeth on the rotating disc, the movement distance of the transmission arm can be accurately controlled, so that the panel can complete the upward and forward movement according to the predetermined track, the functional requirements are met, and the panel is prevented from being insufficiently moved or excessively moved due to mismatched movement distance. The number of teeth directly affects the size of the rotating disc. Reasonable design of the number of teeth can ensure that the rotating disc meets the transmission requirements while the size is not too large, so that the space occupation of the rotating disc itself is reduced, and more installation space is provided for other air conditioner components.

[0029] Further, the rotating connecting shaft is a first mounting pin, the second driving connecting piece is provided with a first assembly hole in which the first mounting pin is rotatably matched, the first rotating connecting piece is a third mounting pin, and the second rotating connecting piece is a second assembly hole rotatably matched with the third mounting pin.

[0030] The utility model also provides an air conditioner, including middle frame and install in the middle frame like above-mentioned a panel drive mechanism, install heat exchanger and the mounting seat in the middle frame, the gap 10-20mm between heat exchanger and the mounting seat.

[0031] Further, when the output gear drives the teeth of the sector arc surface to rotate to the meshing limit distance of the output gear and the teeth of the sector 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 5-15mm.

[0032] To sum up, the panel drive mechanism and the air conditioner have the following technical effects:

[0033] 1. By adopting the connecting rod mechanism to replace the traditional lifting structure, only the crank structure of the first connecting rod can convert the rotation of the second driving connecting piece into the reciprocating swing of the transmission arm, and then drive the panel to move up and down and forward and backward in an arc trajectory through the second connecting rod, so that the structure is simple, the mechanical components are few, the space occupation in the air conditioner is greatly reduced, the miniaturization design of the air conditioner body is facilitated, more installation space is provided for the installation of the high-power fan in the air conditioner, the transmission mechanism is realized by the crank connecting rod and the driving wheel, the forward movement and the upward movement of the panel are synchronized, the transmission mechanism has a large transmission ratio, the output end of the crank connecting rod has a small output torque, the small starting torque of the transmission mechanism is realized, the service life of the motor is prolonged, and a smaller power motor can be used, which is smaller in size and occupies less space.

[0034] 2. The transmission mechanism has a relatively simple structure, few mechanical components, reduced complexity in the manufacturing and assembly process, reduced cost, and is convenient to maintain.

[0035] 3. In the panel movement process, the panel needs to move upward to open the air outlet at the lower part of the air conditioner, and the panel also needs to move forward to leave a gap between the panel and the air conditioner body to form an air duct. This not only realizes multi-face air outlet, but also avoids direct blowing of cold air to the human body, thereby improving the comfort of the user. The second connecting rod is driven by the first connecting rod, and its movement trajectory is arc-shaped, so that the upward and forward movements can be completed synchronously in the same movement process. Compared with the traditional two-stage transmission mechanism (first forward and then upward), the transmission mechanism of the application has a large transmission ratio due to the crank structure of the first connecting rod, so that a smaller power and smaller size driver can be used to drive the first connecting rod to move, further reducing the size of the transmission mechanism. In addition, the first connecting rod adopts the crank structure, and the output end of the transmission arm has a small output torque when starting, so that the small starting torque of the transmission mechanism is realized, which is beneficial to prolonging the service life of the motor. Furthermore, the arc-shaped movement trajectory of the panel does not have an inflection point, does not produce noise, and the panel moves more naturally and smoothly. BRIEF DESCRIPTION OF DRAWINGS

[0036] Figure 1 It is the three-dimensional structure schematic view of embodiment 1 of the utility model;

[0037] Figure 2 It is the first connecting rod movement to limit state structure schematic view of embodiment 1 of the utility model;

[0038] Figure 3 It is the explosion structure schematic view of embodiment 1 of the utility model;

[0039] Figure 4 It is the transmission mechanism connecting panel state structure schematic view of embodiment 1 of the utility model;

[0040] Figure 5 It is the air conditioner explosion structure schematic view of embodiment 1 of the utility model;

[0041] Figure 6 It is the air conditioner section view of embodiment 1 of the utility model;

[0042] Figure 7 It is the first connecting rod structure schematic view of embodiment 1 of the utility model;

[0043] Figure 8 It is the side view structure schematic view of embodiment 1 of the utility model;

[0044] Figure 9 It is the simulation animation demonstration movement state output torque curve contrast drawing of embodiment 1 of the utility model

[0045] Figure 10 It is the first connecting rod and mounting seat explosion structure schematic view of embodiment 1 of the utility model;

[0046] Figure 11 It is the panel transmission mechanism three-dimensional structure schematic view of embodiment 2 of the utility model;

[0047] Figure 12 It is the panel transmission mechanism explosion structure schematic view of embodiment 2 of the utility model;

[0048] Figure 13 It is the driver and first connecting rod cooperation state structure schematic view of embodiment 2 of the utility model.

[0049] Wherein, the reference mark meaning as follows: 1, driver; 11, first drive connecting piece; 2, first connecting rod; 21, transmission arm; 211, first rotary connecting piece; 22, second drive connecting piece; 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 part; 62, narrow diameter part; 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 application will be described and discussed clearly and completely in conjunction with the drawings of the present application. Obviously, only some examples of the present application are described here, and not all examples. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

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

[0052] In the description of the present application, it should be pointed out that the orientation or position relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the present application.

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

[0054] Embodiment 1

[0055] Reference Figures 1-3The utility model discloses a panel drive mechanism, including driver 1, first connecting rod 2 and second connecting rod 3, driver 1 has first drive connecting piece 11, and driver 1 is connected with first drive connecting piece 11 transmission, first connecting rod 2 is the crank structure, and first connecting rod 2 includes transmission arm 21 and second drive connecting piece 22, and one end of transmission arm 21 is fixedly connected with second drive connecting piece 22, and the other end is equipped with first rotary connecting piece 211, and first drive connecting piece 11 is connected with second drive connecting piece 22 transmission, be equipped with second rotary connecting piece on second connecting rod 3, and first rotary connecting piece 211 is connected with second rotary connecting piece rotation, and second connecting rod 3 is fixed with panel 92, second drive connecting piece 22 is equipped with rotary connecting axle, and first drive connecting piece 11 drives second drive connecting piece 22 rotates around rotary connecting axle to drive the reciprocating swing of transmission arm 21, and transmission arm 21 drives second connecting rod 3 and panel the up-down and front-back movement of arc track.

[0056] Specifically, the driving member has a first drive connecting piece 11, which is used for outputting the power of the driving member to drive the first connecting rod 2 to rotate around the rotary connecting axle. The first connecting rod 2 includes a transmission arm 21 and a second drive connecting piece 22. One end of the transmission arm 21 is fixedly connected with the second drive connecting piece 22, and the other end is provided with a first rotary connecting piece 211. The types of the first drive connecting piece 11 and the second drive connecting piece 22 are not limited here, and the first connecting rod 2 can be driven to rotate around the rotary connecting axle. The middle part of the first connecting rod 2 is provided with a rotary connecting point, so that the first connecting rod 2 can maintain 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 rotary connecting piece, and the first rotary connecting piece 211 is rotationally connected with the second rotary connecting piece. The specific structure of the first rotary connecting piece 211 and the second rotary connecting piece 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 rotary connecting piece 211. The second connecting rod 3 is used for assembling the panel 91, so as to drive the panel 91 to reciprocally swing along with the reciprocating swing movement of the first connecting rod 2. The reciprocating swing movement refers to the reciprocating circular arc movement of the first connecting rod 2 during the rotation around the rotary connecting axle. That is, in the arc movement track, the movement demand of the panel 91 towards the front and upwards at the same time is met. The rotary connecting axle can be specifically a shaft hole matched with a rotating shaft to realize the effect that the first connecting rod 2 rotates around the rotary connecting axle.

[0057] In addition, with reference to Figure 5 and Figure 6As shown in the air conditioner 9 using the transmission mechanism, in order to ensure the multi-surface air outlet effect of the air conditioner 9, that is, the air outlet sends air to the panel 91, the air moves around along the gap between the panel 91 and the middle frame 92, and when moving to the edge of the middle frame 92, the edge of the middle frame 92 is provided with a convex edge 93 for guiding the air to turn horizontally towards the air conditioner 9. In the state that the air conditioner 9 is not used, the panel 91 is installed in the groove surrounded by the convex edges 93 around the middle frame 92, so in the movement track of the opening of the panel 91, the interference of passing over the convex edges 93 needs to be considered, and therefore the prior art drives the panel 91 to move forward first to ensure that the panel 91 will not interfere with the convex edges 93 when moving upward. The transmission mechanism of the present application drives the panel 91 to move forward and upward at the same time in an arc-shaped manner, so that the structure of the transmission mechanism is simpler, and the overall volume of the transmission mechanism is further reduced.

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

[0059] Referring to Figures 1-4 As shown, the driver 1 works, and through the transmission connection of the first driving connecting piece 11 and the second driving connecting piece 22, power is transmitted to the second driving connecting piece 22. Since the second driving connecting piece 22 is provided with a rotating connecting shaft, and the second driving connecting piece 22 rotates around the rotating connecting shaft, the second driving connecting piece 22 and the transmission arm 21 connected with the second driving connecting piece 22 rotate around the rotating connecting shaft as the center. In the rotating process of the transmission arm 21, based on the rotating connection of the first rotating connecting piece 211 and the second rotating connecting piece, the second connecting rod 3 is driven to rotate around the first rotating connecting piece 211 (the second connecting rod 3 is always kept vertically downward to ensure the posture of the panel 91), and at the same time, the second connecting rod 3 makes a circular arc motion around the rotating connecting piece as the center, and the panel 91 is assembled on the second connecting rod 3, so as to realize the circular arc motion of the panel 91.

[0060] It should be noted that the above-mentioned forward motion is the motion towards the direction away from the middle frame 92 of the air conditioner 9, and the upward motion is the motion towards the direction above the air conditioner 9.

[0061] Referring to Figure 2 and Figure 3 As shown, in some embodiments, the first driving connecting piece 11 is an output gear, the second driving connecting piece 22 is a rotating disc, the outer periphery of the rotating disc is outwardly extended with a fan-shaped arc surface, the fan-shaped arc surface of the rotating disc is provided with gear teeth meshing with the output gear, and the side of the rotating disc away from the fan-shaped arc surface is fixedly connected with the transmission arm 21.

[0062] Specifically, the first driving connecting piece 11 is an output gear, that is, the first driving connecting piece 11 adopts a gear structure, and correspondingly, the driver 1 driving the output gear to rotate can adopt an electric motor. The second driving connecting piece 22 is a rotating disc, and the outer circumferential surface of the rotating disc partially extends outward in a fan-shaped arc surface. The fan-shaped arc surface of the rotating disc is provided with a gear on one side, which is meshed with the output gear. Through the meshing of the output gear and the gear of the fan-shaped arc surface, more stable power transmission can be achieved. Moreover, the matching mode of the gear and the gear has high transmission efficiency and small volume, so that the whole transmission mechanism is more compact, thereby better adapting to the space layout inside the air conditioner 9. Moreover, the rotating disc adopts a fan shape, so that a suitable size fan can be selected according to needs, so that the rotating disc can meet the needs of the movement distance of the panel 91 and can control the size of the rotating disc as much as possible, thereby reasonably controlling the size of the first connecting rod 2.

[0063] Referring to Figure 7 As shown in the drawings, in some embodiments, when the transmission arm 21 is in the initial state, the angle between the line connecting the shaft center of the rotating connecting shaft and the shaft center of the first rotating connecting piece 211 and the vertical line is 0-10 degrees.

[0064] Specifically, the rotating connecting shaft is arranged at the shaft center of the rotating disc. Compared with the traditional gear crank connecting rod transmission mode, 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, so that it is not easy to be warped and deformed when bearing load and when being cold or hot, thereby enhancing the strength and stability of the whole structure. Compared with the traditional gear crank connecting rod transmission mode, this mode 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 shaft center of the first rotating connecting piece 211 and the vertical line is 0-10 degrees. Compared with being located vertically below the shaft center of the rotating disc, this structure reduces the force arm of the force output end of the first connecting rod 2, thereby reducing the output torque, that is, the torque that needs to be overcome by the electric motor when starting is smaller, thereby reducing the burden of the electric motor, and further prolonging the service life of the electric motor. At the same time, due to the reduction of the starting torque, a motor with lower power and smaller size can be selected, further saving the installation space.

[0066] Referring to Figure 8 As shown in the drawings, in some embodiments, in order to overcome the load inertia during driving of the electric motor through adjustment of the reduction ratio, the rotating connecting shaft is located on the rotating axis of the rotating disc, and the reduction ratio of the gear of the fan-shaped arc surface to the output gear is 3-4. The reduction ratio of the rotating disc to the output gear is 3.6, thereby making it easier for the electric motor to overcome the inertia of the load when starting, thereby reducing the impact and torque demand when starting.

[0067] In some embodiments, the distance from the rotation axis of the rotating disc to the first rotation connecting piece 211 is X, and the distance from the center of the rotating disc 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 rotating disc to the first rotation connecting piece 211 is X, i.e., the resistance arm, and the distance from the center of the rotating disc to the teeth is Y, i.e., the power arm. Since the panel 91 needs to perform upward and forward movement, i.e., the transmission mechanism needs to complete the specified distance change in a limited space, by setting the ratio of X:Y = 1-2, wherein X:Y = 3:2 is optimal, the ratio can ensure that the movement path of the connecting rod mechanism meets the design requirements on the premise of ensuring the movement distance of the panel 91, so that the panel 91 can accurately complete the predetermined movement track. Moreover, 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 motor starting torque, thereby reducing the working load of the motor.

[0069] In the present embodiment, the speed reduction ratio of the rotating disc and the output gear is 3.6, and the distance from the center of the rotating disc to the first rotation connecting piece 211 is X, and the distance from the center of the rotating disc to the teeth is Y, wherein X:Y = 3:2. In the initial state, the panel 91 is embedded in the slot surrounded by the convex edge 93 by 10 mm, and the minimum distance between the panel 91 and the middle frame 92 is 10 mm, in order to reserve deformation space for thermal expansion and contraction of the large-area panel 91. In the above case, when the first connecting rod 2 moves to the case where the upper surface of the panel 91 is flush with the upper surface of the convex edge 93, the panel 91 is pushed forward by 19 mm while rising by 10 mm, and the panel 91 maintains a certain distance from the convex edge 93, which can ensure normal air outlet and reserve deformation space for thermal expansion and contraction of the first connecting rod 2 and the panel 91. Figure 9 As shown, in the normal friction environment, the starting torque only needs to be 76 N·m, and the peak torque only needs to be 170 N·m, which not only reduces the starting torque and peak torque, but also improves the efficiency of the transmission system. The motor can more efficiently convert electrical energy into mechanical energy 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, helping to extend the service life of the motor and other components in the transmission mechanism, reducing maintenance costs. More importantly, smaller torque requirements can use smaller motors, thereby reducing the overall volume occupied by the transmission mechanism.

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

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

[0072] Specifically, the third connecting rod 5 parallel to the first connecting rod 2 is additionally provided, and the connection structure of the third connecting rod 5 and the second connecting rod 3 can be the same as that of the first connecting rod 2 and the second connecting rod 3. The third connecting rod 5 provides an additional support point and a power transmission path for the second connecting rod 3. When the first connecting rod 2 drives the second connecting rod 3 to move, the synchronous movement of the third connecting rod 5 and the first connecting rod 2 helps to maintain the stability and balance of the second connecting rod 3 and reduces the vibration or deviation caused by uneven force on a single connecting rod.

[0073] Further, the distance between the fixed rotating shaft and the movable rotating shaft of the third connecting rod 5 is equal to the distance between the rotating connecting shaft provided on the second driving connecting piece 22 and the first rotating connecting piece 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] Referring to Figure 8 In some embodiments, as shown, a mounting seat 4 is further included, the rotating connecting shaft is rotatably connected to the mounting seat 4, the mounting seat 4 is provided with a limiting wall 41, and when the teeth of the output gear drive the teeth of the rotating disc to rotate to the limit distance of meshing between the output gear and the teeth of the rotating disc, the transmission arm 21 abuts against the limiting wall 41.

[0075] Specifically, the mounting seat 4 facilitates the installation of the first connecting rod 2 and the third connecting rod 5, and by providing the limiting wall 41, when the teeth of the rotating disc mesh with the output gear to the limit distance, the transmission arm 21 contacts the limiting wall 41, preventing the tooth disengagement phenomenon caused by further rotation, thereby ensuring that the transmission system will not lose meshing in any case, and guaranteeing the continuity and reliability of the transmission.

[0076] In addition, by setting the number of teeth on the rotating disc, the movement distance of the transmission arm 21 can be accurately controlled, ensuring that the panel 91 can complete the upward and forward movement according to the predetermined trajectory, meeting the functional requirements, and avoiding the panel 91 from not reaching the position or over-movement due to the mismatch of the movement distance. The number of teeth directly affects the size of the rotating disc. Reasonable design of the number of teeth can ensure that the rotating disc meets the transmission requirements while the size is not too large, thereby reducing the space occupation of the rotating disc itself and providing more installation space for other components of the air conditioner 9.

[0077] In some embodiments, the rotating connection shaft is a first mounting pin 6, and the second driving connection piece 22 is provided with a first assembly hole 221 that is rotationally matched with the first mounting pin 6; the first rotating connection piece 211 is a third mounting pin, and the second rotating connection piece is a second assembly hole 31 that is rotationally matched with the third mounting pin.

[0078] Specifically, the rotating connection shaft is a first mounting pin 6, the first mounting pin 6 is arranged on the mounting seat 4, the second driving connection piece 22 is provided with a first assembly hole 221 that is rotationally matched with the first mounting pin 6, and correspondingly, the first rotating connection piece 211 is a third mounting pin, and the second rotating connection piece is a second assembly hole 31 that is rotationally matched with the third mounting pin.

[0079] The utility model also provides a kind of air conditioner 9, including middle frame 92 and install in the middle frame 92 like above-mentioned one panel transmission mechanism, the middle frame 92 is installed heat exchanger 9494 and the mounting seat 4, the gap between the heat exchanger 9494 and the mounting seat 4 is 10-20mm.

[0080] Specifically refer to Figure 6 As shown in the figure, in the embodiment, since high-power heat exchanger 9494 is used, only the space for installing the panel transmission mechanism is provided on the upper side of the panel 91 close to the middle frame 92 inside, and in order to ensure that the panel transmission mechanism does not collide with the heat exchanger 94, a gap of 10-20mm is reserved between the panel transmission mechanism and the heat exchanger 94. In the embodiment, 16mm is reserved between the panel transmission mechanism and the heat exchanger 94 based on the optimized structure of the panel transmission mechanism, and 8mm is normally required to completely avoid interference between the panel transmission mechanism and the heat exchanger 94.

[0081] Further, when the teeth of the output gear drive the teeth of the sector to the limit distance of engagement of the output gear and the sector, 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 5-15 mm. By the gap between the upper edge of the panel 91 and the upper edge of the middle frame 92 to ensure the smoothness of the air outlet, in the embodiment, and the gap between the upper edge of the panel 91 and the upper edge of the middle frame 92 is 10 mm, 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 outlet and the normal transmission of the panel transmission mechanism.

[0082] In addition, referring to Figure 10 As shown in the figure, in some embodiments, the mounting seat 4 is provided with a first mounting pin 6, and the first mounting pin 6 is provided with a limiting edge 621 and a deformation gap 622 away from one end of the mounting seat 4. The limiting edge 621 is arranged on the outer wall of the first mounting pin 6, and the deformation gap 622 is arranged along the axial direction of the first mounting pin 6. The second driving connecting piece 22 is provided with a first assembly hole 221 at the position of the rotating connecting shaft, and the inner wall of the first assembly hole 221 is provided with a limiting convex strip 2211. The first mounting pin 6 is arranged by penetrating into the first assembly hole 221, the limiting edge 621 is clamped with the limiting convex strip 2211, and the deformation gap 622 is used for elastic contraction of the limiting edge 621 to the axial direction of the first mounting pin 6 when the limiting edge 621 penetrates 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 adopt a cross shape, a rice shape, etc., which can realize that the limiting edge 621 can pass over the limiting retreat platform. The limiting edge 621 is clamped with the limiting convex strip 2211 in the first assembly hole 221, which ensures that the first mounting pin 6 will not be loose or fall off after installation is completed, improves the stability of the whole transmission mechanism, and prevents transmission failure or failure caused by loose parts.

[0084] Referring to Figure 2 As shown in the figure, 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 can adopt a sunken design, 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 part 61 and a narrow diameter part 62, the wide diameter part 61 and the narrow diameter part 62 are connected, the wide diameter part 61 is fixedly connected with the mounting seat 4, and the limiting edge 621 and the deformation gap 622 are arranged on the narrow diameter part 62.

[0086] Specifically, the deformation gap 622 is arranged at the narrow diameter part 62 to facilitate installation by elastic deformation of the narrow diameter part itself, and the wide diameter part 61 is not provided with the deformation gap 622, thereby ensuring the structural strength of the wide diameter part 61. The wide diameter part 61 is fixedly connected with the mounting seat 4, thereby enhancing the strength and stability of the first mounting pin 6, and the design of the wide diameter part 61 avoids the first connecting rod 2, the third connecting rod 5 or the second connecting rod 3 mounted on the first mounting pin 6 from being in large-area contact with the overall 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 installation, the rotational connection performance between the first connecting rod 2 and the mounting seat 4 is not affected, thereby ensuring smooth operation of the transmission mechanism.

[0087] In some embodiments, the first rotational connecting member 211 is a third mounting pin, the third mounting pin is structurally identical to the first mounting pin 6, and the second rotational connecting member is a second assembly hole 31, the third mounting pin is arranged through the second assembly hole 31, and the third mounting pin is rotationally connected with the second assembly hole 31.

[0088] Specifically, in order to facilitate assembly of the second connecting rod 3, the first rotational connecting member 211 is a third mounting pin, and the third mounting pin is structurally identical to the first mounting pin 6, and the second rotational connecting member is a second assembly hole 31, the third mounting pin is arranged through the second assembly hole 31, and the third mounting pin and the second assembly hole 31 are rotationally connected.

[0089] On the basis of the structure of the transmission mechanism provided with the third connecting rod 5, in order to facilitate assembly of the third connecting rod 5, one end of the third connecting rod 5 is rotationally connected to the mounting seat 4, the other end is rotationally connected with the second connecting rod 3, the first connecting rod 2 is arranged in parallel with the third connecting rod 5, and the mounting seat 4 is further provided with a second mounting pin 7, the second mounting pin 7 is structurally identical to the first mounting pin 6, and the second mounting pin 7 is rotationally connected with 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 can also be designed in a sunken manner.

[0091] Further, on the basis of the structure of the transmission mechanism provided with the third connecting rod 5, in order to facilitate connection of the third connecting rod 5 and the second connecting rod 3, the end of the third connecting rod 5 connected with the second connecting rod 3 is provided with a fourth mounting pin 8, the fourth mounting pin 8 is structurally identical to the first mounting pin 6, and the second connecting rod 3 is provided with a third assembly hole 32 rotationally connected with the fourth mounting pin 8.

[0092] Embodiment 2

[0093] On the basis of the structure of the embodiment 1, as shown in FIG. 2, the transmission arm 21 passes through the perpendicular line of the fan-shaped arc surface in the length direction, and the second driving connecting member 22 is integrally formed with the transmission arm 21. Figures 11-13 The transmission arm 21 passes through the perpendicular line of the fan-shaped arc surface in the length direction, and the second driving connecting member 22 is integrally formed with the transmission arm 21.

[0094] Specifically, compared with the embodiment 1, the extension line of the transmission arm 21 in the length direction passes the middle line of the sector surface, that is, the length of the first connecting rod 2 is the sum of the length of the transmission arm 21 and the middle line of the sector surface, so that the total length of the first connecting rod 2 is longer, and correspondingly, the first connecting rod 2 can drive the second connecting rod 2 to move a farther distance under a smaller rotation angle, that is, the sector surface of the second driving connecting piece 22 does not need to be provided with more teeth, so as to reduce the size of the second driving connecting piece 22.

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

[0096] The driver 1 works, and through the transmission connection of the first driving connecting piece 11 and the second driving connecting piece 22, power is transmitted to the transmission arm 21, the second driving connecting piece 22 of the second connecting rod 3 and the transmission arm 21 are driven to rotate around the rotation connection shaft, in the process of rotating the first connecting rod 2, based on the rotation connection relationship between the first connecting rod 2 and the second connecting rod 3 through the first rotation connecting piece 211 and the second rotation connecting piece, the transmission arm 21 drives the second connecting rod 3 to move with the rotation of the first connecting rod 2, so that the second connecting rod 3 realizes arc motion under the rotation of the first connecting rod 2, and further realizes the arc motion of the panel 91 installed on the second connecting rod 3.

[0097] The technical means disclosed in the utility model scheme is not only limited to the technical means disclosed in the above-mentioned embodiments, but also includes the technical scheme composed of any combination of the above technical features. It should be noted that for ordinary skilled persons in the art, without departing from the principle of the utility model, some improvements and refinements can be made, and these improvements and refinements are also considered as the protection scope of the utility model.

Claims

1. A panel transmission mechanism, characterized in that, include: A driver having a first drive connector, the driver being drively connected to the first drive connector; The first connecting rod is a crank structure. The first connecting rod includes a transmission arm and a second drive connector. One end of the transmission arm is fixedly connected to the second drive connector, and the other end is provided with a first rotating connector. The first drive connector is drively connected to the second drive connector. The second link is provided with a second rotating connector, the first rotating connector is rotatably connected to the second rotating connector, and the second link is fixed with a panel. The second drive connector is provided with a rotating connecting shaft. The first drive connector drives the second drive connector to rotate around the rotating connecting shaft, thereby driving the transmission arm to reciprocate. The transmission arm drives the second connecting rod and the panel to move up and down and back and forth in an arc trajectory.

2. The panel transmission mechanism according to claim 1, characterized in that, The first drive connector is an output gear, the second drive connector is a turntable, a portion of the outer circumference of the turntable extends outward with a fan-shaped arc surface, the fan-shaped arc surface of the turntable is provided with teeth that mesh 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.

3. A panel transmission mechanism according to claim 2, characterized in that, When the transmission arm is in its initial state, the angle between the line connecting the axis of the rotating connecting shaft and the axis of the first rotating connecting member and the vertical line is 0°. 10 degrees.

4. A panel transmission mechanism according to claim 2, characterized in that, The rotating connecting shaft is located on the rotation axis of the turntable, and the reduction ratio between the teeth of the fan-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 turntable to the first rotating connector is X, and the distance from the center of the turntable to the tooth is Y, where X:Y = 1.

2.

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

7. A panel transmission mechanism according to any one of claims 2-5, characterized in that, The extension line of the transmission arm in its length direction passes through the perpendicular bisector of the fan-shaped arc surface, and the second drive connector and the transmission arm are integrally formed.

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

9. A panel transmission mechanism according to claim 8, characterized in that, The distance between the fixed rotation axis and the movable rotation axis of the third link is equal to the distance between the second drive connector having a rotation connection axis and the first rotation connector.

10. A panel transmission mechanism according to any one of claims 2-5, characterized in that, It also includes a mounting base, the rotating connecting shaft is rotatably connected to the mounting base, the mounting base 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 teeth of the output gear and the turntable, the transmission arm abuts against the limiting wall.

11. A panel transmission mechanism according to any one of claims 1-5, 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 rotatably engages with the first mounting pin; the first rotating connecting member is a third mounting pin, and the second rotating connecting member is provided with a second assembly hole that rotatably engages with the third mounting pin.

12. An air conditioner, characterized in that, The device includes a middle frame and a panel transmission mechanism as described in any one of claims 1-11 mounted on the middle frame, wherein a heat exchanger and the mounting base are installed within the middle frame, and a gap of 10 is formed between the heat exchanger and the mounting base. 20mm.

13. An air conditioner according to claim 12, characterized in that, When the output gear drives the teeth of the sector-shaped arc surface to rotate to the meshing limit distance between the output gear and the teeth of the sector-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 mm. 15mm.

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