Electric air outlet transmission mechanism

Abstract

The utility model relates to an electric air outlet transmission mechanism which comprises an upper shell, a lower shell, an upper support, a lower support, an upper-layer blade, a lower-layer blade, an upper connecting rod and a lower connecting rod, wherein the upper-layer blade and the lower-layer blade are connected with the upper support and the lower support respectively; the device further comprises a shifting fork, a trapezoidal thread transmission rod, an air distribution mechanism, a motor support, a motor I, a motor II and a dust cover. Kinetic energy is provided through rotation of the motor I, the rotating motion of the trapezoidal threaded transmission rod can be converted into motion of the shifting fork in the axis direction of the trapezoidal threaded transmission rod, the shifting fork drives the upper connecting rod and the lower connecting rod to do linear motion, all the blades rotate around the blade shafts, and left-right blowing of the blades is achieved. By controlling the motor, driving the air distribution mechanism to rotate, controlling the opening sizes of the air cavities of the upper shell and the lower shell and controlling different proportions of the upper air quantity and the lower air quantity of the air outlet, the convection effect is formed, and the air outlet blows up and down. The device can accurately control the air direction and the air outlet amount, the space utilization rate is high, and electric control over up-down blowing and left-right blowing of the blades at the air outlet is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile design and manufacturing, and particularly relates to an electric air outlet transmission mechanism. Background Art

[0002] The air outlet is a functional part that needs to meet the performance engineering requirements of automotive air conditioning. With the development of the times and the change of consumer aesthetics, the air outlets within the passenger's field of view have gradually been given the attributes of interior and exterior parts, and styling designers will also focus on their design to meet the aesthetic appeal of the styling. Traditional air outlets are usually equipped with knobs and thumb wheels to assist in adjusting the size of the air-conditioning outlet. The setting of the knob and thumb wheel not only increases the complexity of the structure and assembly, but also because the size of the air outlet is controlled by the control knob and thumb wheel, the airflow of the air outlet is not stable enough. Based on this, it is necessary to develop an electric air outlet transmission mechanism to effectively solve the above problems. Summary of the Invention

[0003] The purpose of the present invention is to provide an electric air outlet transmission mechanism to solve the problem of electric control of wind direction and air volume.

[0004] The purpose of this utility model is achieved through the following technical solutions:

[0005] An electric air outlet transmission mechanism includes an upper shell 1, a lower shell 21 fixed thereto, upper and lower brackets, upper and lower layers of blades connected to the upper and lower brackets, and upper and lower connecting rods respectively connecting the upper and lower layers of blades;

[0006] The upper bracket is composed of an upper bracket I2 and an upper bracket II9 fixed thereto, and the lower bracket is composed of a lower bracket I10 and a lower bracket II16 fixed thereto. The upper bracket I2 and the lower bracket I10 are respectively connected to the upper shell (1) and the lower shell 21;

[0007] The upper blades are mounted between the upper bracket I2 and the upper bracket II9, and the lower blades are mounted between the lower bracket I10 and the lower bracket II16. The upper and lower ends of the blade shafts of the upper and lower blades are respectively fitted with clearances in the mounting holes on the corresponding brackets. Each blade is also provided with a short shaft structure connected to a connecting rod.

[0008] The upper connecting rod 8 is located above the upper bracket II 9, and the matching holes on it match the short axis structure of each blade respectively; the lower connecting rod 11 is located in front of the lower bracket I 10, and the matching holes on it match the short axis structure of each blade respectively;

[0009] It also includes a shift fork 18, a trapezoidal thread transmission rod 19, an air distribution mechanism 20, a motor bracket 22, a motor I 23 and a motor II 24 connected to the motor bracket 22, and a dust cover 25; the shift fork 18 is sleeved on the trapezoidal thread transmission rod 19 and cooperates with its thread. When the trapezoidal thread transmission rod 19 rotates, it can drive the shift fork 18 to move axially; the ends of the vertical rod and the horizontal rod of the shift fork 18 are both provided with a U-shaped structure that can cooperate with the connecting ends of the corresponding connecting rods; one end of the trapezoidal thread transmission rod 19 cooperates with the axial hole opened in the side wall of one side of the lower shell 21, and the other end cooperates with the axial hole opened in the motor bracket 22 fixed on the other side of the lower shell 21; the dust cover 25 is arranged in the middle of the lower shell 21, one side of which is connected to the opening in the side wall of one side of the lower shell 21, and the other side is fixed to the motor bracket 22;

[0010] The air distribution mechanism 20 is arranged in a cylindrical cavity formed by the upper shell 1 and the lower shell 21. The cavity is connected to the cavity connecting the upper and lower air outlets respectively. The air distribution mechanism 20 is composed of a connecting rod and a fan-shaped structure integrally formed therewith. The ends of the connecting rod can be limited to the mounting holes reserved on both sides after the upper shell 1 and the lower shell 21 are installed;

[0011] The motor I 23 is mounted on one side of the motor bracket 22 , and one end of the trapezoidal thread transmission rod 19 is connected to the motor I 23 via a spline; the motor II 24 is connected to the connecting rod of the air distribution mechanism 20 via a spline.

[0012] Furthermore, the upper shell 1 is fixed to the top of the lower shell and connected to the lower shell 21 by screws, and the air distribution mechanism 20 is fixed to the middle of the lower shell 21 by screws.

[0013] Furthermore, the upper bracket I2 is provided with limit pins on both sides that can be engaged with the slots provided on both sides of the upper bracket II9; the lower bracket I10 is also provided with limit pins on both sides that can be engaged with the slots provided on both sides of the lower bracket II16.

[0014] Furthermore, the upper bracket I2 and the lower bracket I10 are respectively fixed to the bayonet of the upper shell 1 and the lower shell 21 through a pair of clips with deformable tongue structures.

[0015] Furthermore, the upper blades include upper blade I3, upper blade II4, upper blade III5, upper blade IV6, and upper blade V7; the lower blades include lower blade I12, lower blade II13, lower blade III (14), lower blade IV15, and lower blade V17.

[0016] Furthermore, the middle of the upper and lower blades are provided with a blade shaft integrally formed therewith, and the raised connection structures at the upper and lower ends of the blade shaft can respectively fit with the gap of the mounting holes on the corresponding brackets, so that under the action of external force, each blade can rotate around the blade shaft between the corresponding brackets.

[0017] Furthermore, the upper and lower connecting rods are each provided with 5 matching holes and a connecting end. The matching holes on the upper connecting rod 8 respectively match the short axis structures of the upper blade I3, the upper blade II4, the upper blade III5, the upper blade IV6, and the upper blade V7, with a clearance fit; the lower connecting rod 11 is located in front of the lower bracket I10, and the matching holes on it respectively match the short axis structures of the lower blade I12, the lower blade II13, the lower blade III14, the lower blade IV15, and the lower blade V17, with a clearance fit.

[0018] Furthermore, the shift fork 18 is composed of a vertical rod connected to the upper connecting rod 8, a horizontal rod connected to the lower connecting rod 11, and a threaded sleeve arranged at the intersection of the vertical rod and the horizontal rod, connected to them and sleeved on the trapezoidal thread transmission rod 19. The vertical rod, the horizontal rod and the threaded sleeve are integrally formed; the ends of the vertical rod, the horizontal rod and the connecting rod are connected to each other with a U-shaped structure that can cooperate with the connecting end of each corresponding connecting rod.

[0019] Furthermore, the upper shell 1 and the lower shell 21 are both provided with strip grooves for the shift fork 18 to move; under the action of external force, the shift fork 18 is transmitted along the axial direction of the trapezoidal thread transmission rod 19, so that it can move left and right along the strip groove, thereby driving the upper connecting rod 8 and the lower connecting rod 11 to move, so that the blades leveled with the connecting rod can swing left and right.

[0020] Furthermore, one end of the trapezoidal thread transmission rod 19 has a spline connected to the motor I 23 through a spline; the motor I 23 is fixed to the motor bracket 22 through screws, the motor II 24 is fixed to the motor bracket 22 through screws, and the motor II 24 is connected to the connecting rod of the air distribution mechanism 20 through a spline.

[0021] Compared with the prior art, the beneficial effects of the present invention are:

[0022] The electric air outlet transmission mechanism of the utility model has the advantages of simple transmission structure, easy installation, precise control of wind direction and air volume, high space utilization rate, etc. The driver can not only freely control the air volume and blowing mode of the main driver's side air outlet, but also control the co-pilot side air outlet. On the basis of retaining the original air outlet control transmission function, the electric control of the air outlet blades blowing up and down, left and right is realized. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0024] Figure 1This is the front view of the electric air outlet transmission mechanism of the utility model;

[0025] Figure 2 This is a left side view of the electric air outlet transmission mechanism of the utility model;

[0026] Figure 3 This is a top view of the electric air outlet transmission mechanism of the utility model;

[0027] Figure 4 This is an AA sectional view of the electric air outlet transmission mechanism of the utility model;

[0028] Figure 5 This is a BB sectional view of the electric air outlet transmission mechanism of the utility model;

[0029] Figure 6 This is the CC cross-sectional view of the electric air outlet transmission mechanism of the utility model.

[0030] Figure 7 This is a DD sectional view of the electric air outlet transmission mechanism of the utility model;

[0031] Figure 8 This is a transmission principle diagram of the electric air outlet transmission mechanism of the utility model;

[0032] Figure 9 This is an exploded view of the electric air outlet transmission mechanism of the utility model;

[0033] Figure 10 It is a schematic diagram of the connection between the upper connecting rod and the upper blade;

[0034] Figure 11 This is a schematic diagram of the installation of the upper and lower brackets;

[0035] Figure 12 Schematic diagram of the bracket and the shell;

[0036] Figure 13 It is a side view of the electric air outlet transmission mechanism of the utility model;

[0037] Figure 14 This is a schematic diagram of the position of the air distribution mechanism.

[0038] In the figure, 1. upper housing 2. upper bracket I 3. upper blade I 4. upper blade II 5. upper blade III 6. upper blade IV 7. upper blade V 8. upper connecting rod 9. upper bracket II 10. lower bracket I 11. lower connecting rod 12. lower blade I 13. lower blade II 14. lower blade III 15. lower blade IV 16. lower bracket II 17. lower blade V 18. shift fork 19. trapezoidal thread transmission rod 20. air distribution mechanism 21. lower housing 22. motor bracket 23. motor I 24. motor II 25. dust cover DETAILED DESCRIPTION

[0039] The present invention will be further described below in conjunction with the embodiments:

[0040] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all of its components.

[0041] It should be noted that similar reference numerals and letters represent similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings. At the same time, in the description of this utility model, the terms "first", "second", etc. are used only to distinguish the description and should not be understood as indicating or implying relative importance.

[0042] In recent years, air outlets have been increasingly inclined towards a minimalist design style, and traditional manually driven multi-blade air outlets have gradually been replaced by simpler single-blade electrically driven air outlets. The utility model provides an electric air outlet transmission mechanism, which, while retaining the original air outlet control transmission function, drives the trapezoidal thread transmission rod 19 to rotate by controlling the motor Ⅰ 23, driving the shift fork 18, so that the upper and lower blades rotate synchronously, thereby achieving left and right sweeping of the upper and lower air outlets. By controlling the motor Ⅱ 24, the air distribution mechanism 20 is driven to rotate, and the upper and lower air volume ratios of the air outlet are controlled to be different, forming a convection effect, and sweeping the air outlet up and down. The driver controls different drive motors, which can not only arbitrarily control the air volume and sweeping mode of the main driver's side air outlet, but also achieve control of the co-pilot side air outlet.

[0043] The electric air outlet transmission mechanism of the utility model comprises an upper shell 1, a lower shell 21, an upper bracket, a lower bracket, upper and lower blades connected with the upper and lower brackets, and upper and lower connecting rods respectively connecting the upper and lower blades.

[0044] The upper shell 1 is fixed to the top of the lower shell and connected to the lower shell 21 by screws. The air distribution mechanism 20 is fixed to the middle of the lower shell 21 by screws.

[0045] The upper bracket consists of upper bracket I2 and upper bracket II9. The lower bracket consists of lower bracket I10 and lower bracket II16. Upper bracket I2 is equipped with stop pins on both sides that engage with the slots on both sides of upper bracket II9. Lower bracket I10 is also equipped with stop pins on both sides that engage with the slots on both sides of lower bracket II16. The upper bracket I2 and lower bracket I10 are respectively secured to the bayonet holes of the upper shell 1 and lower shell 21 via a pair of clips with deformable tongue structures.

[0046] The upper blades include upper blade I3, upper blade II4, upper blade III5, upper blade IV6, and upper blade V7; the lower blades include lower blade I12, lower blade II13, lower blade III14, lower blade IV15, and lower blade V17. The upper blades are mounted between upper bracket I2 and upper bracket II9, and the lower blades are mounted between lower bracket I10 and lower bracket II16. The upper and lower blades are each provided with an integrally formed blade shaft in the middle. The raised connection structures at the upper and lower ends of the blade shaft can respectively fit with the mounting holes on the corresponding brackets, allowing each blade to rotate around the blade shaft between the corresponding brackets under the action of external force. Each blade is also provided with a short shaft structure connected to a connecting rod.

[0047] Each of the upper and lower connecting rods has five mating holes and a connecting end. Specifically, the upper connecting rod 8 is located above the upper bracket II 9, and its mating holes respectively mate with the short axis structures of the upper blades I 3, II 4, III 5, IV 6, and V 7, with a clearance fit. The lower connecting rod 11 is located in front of the lower bracket I 10, and its mating holes respectively mate with the short axis structures of the lower blades I 12, II 13, III 14, IV 15, and V 17, with a clearance fit.

[0048] It also includes a shift fork 18, a trapezoidal thread transmission rod 19, an air distribution mechanism 20, a motor bracket 22, a motor I 23, a motor II 24 and a dust cover 25.

[0049] The shift fork 18 is threadedly mounted on a trapezoidal threaded transmission rod 19, engaging with the latter. Rotation of the latter drives the shift fork 18 axially. The shift fork 18 comprises a vertical rod connected to the upper connecting rod 8, a horizontal rod connected to the lower connecting rod 11, and a threaded sleeve located at the intersection of the vertical and horizontal rods and connected to the trapezoidal threaded transmission rod 19. The vertical rod, horizontal rod, and threaded sleeve are integrally formed. The ends of the vertical and horizontal rods, where they connect to the connecting rods, are each equipped with a U-shaped structure that mates with the connecting ends of the corresponding connecting rods.

[0050] Both the upper and lower housings 1 and 21 are formed with slots for the shift fork 18 to move. Under external force, the shift fork 18 is driven along the axis of the trapezoidal threaded drive rod 19, allowing it to move left and right along the slots. This, in turn, drives the upper and lower connecting rods 8 and 11, causing the blades, linked to the connecting rods, to swing left and right. This effectively forms a four-bar linkage between the two blades, the connecting rods, and the brackets, allowing them to move together through multiple sets of four-bar linkages. The blades can swing to a maximum angle of 30-35°.

[0051] One end of the trapezoidal thread transmission rod 19 cooperates with the shaft hole opened on one side wall of the lower shell 21 , and the other end cooperates with the shaft hole opened on the motor bracket 22 fixed on the other side of the lower shell 21 .

[0052] The dust cover 25 is disposed in the middle of the lower housing 21 , one side of which is connected to an opening on one side wall of the lower housing 21 via a plurality of pins, and the other side is fixed to the motor bracket 22 via a plurality of screws.

[0053] The air distribution mechanism 20 is arranged in a cylindrical cavity composed of an upper shell 1 and a lower shell 21, and the cylindrical cavity is respectively connected to the cavity connecting the upper and lower air outlets, namely the air cavity. In the present utility model, the upper and lower air outlets both discharge air along their normal directions. The air distribution mechanism 20 is composed of a connecting rod and a fan-shaped structure integrally formed therewith, and the two ends of the connecting rod can be limited to the reserved mounting holes on both sides after the upper shell 1 and the lower shell 21 are installed. The air distribution mechanism 20 can be made of plastic material, or it can be made of plastic inside and rubber outside. Through the rotation of the air distribution mechanism 20, different air volumes entering the upper and lower cavities are achieved, thereby achieving different air volume distribution, forming air volume convection at the front end of the air outlet, and achieving upper and lower blowing of the air outlet. The rotation angle of the air distribution mechanism 20 is 60° up and down.

[0054] Motor I 23 is mounted to one side of motor bracket 22. Trapezoidal threaded drive rod 19 passes through shift fork 18 and engages with the side of lower housing 21 and the axial hole of motor bracket 22. A splined key at one end of trapezoidal threaded drive rod 19 connects to motor I 23 via a spline. Motor I 23 is secured to motor bracket 22 via screws, while motor II 24 is also secured to motor bracket 22 via screws. Motor II 24 is splined to the connecting rod of air distribution mechanism 20.

[0055] Working principle of automobile electric air vent transmission mechanism:

[0056] like Figure 9 As shown, the shaft of motor I 23, with its own splined matching hole, is connected to the splined trapezoidal thread drive rod 19. Trapezoidal thread drive rod 19 is threadedly connected to shift fork 18. The rotation of motor I 23 provides kinetic energy, converting the rotational motion of trapezoidal thread drive rod 19 into movement of shift fork 18 along its axis. The U-shaped structure of shift fork 18, which gap-matches with the connection ends of upper connecting rod 8 and lower connecting rod 11, drives the upper and lower connecting rods 8 and 11 in linear motion. Upper connecting rod 8 drives upper blades I3, II4, III5, IV6, and V7 to rotate about their respective blade axes. Lower connecting rod 11 drives lower blades I12, II13, III14, IV15, and V17 to rotate about their respective blade axes, achieving left and right purge of the blades.

[0057] Motor II 24 provides kinetic energy. The rotating shaft of motor II 24 with its own spline matching hole is rotatably connected to the spline air distribution mechanism 20 with its own spline. By controlling the motor 24, the air distribution mechanism 20 is driven to rotate, the size of the air cavity opening of the upper shell 1 and the lower shell 21 is controlled, and the air volume ratio above and below the air outlet is controlled to be different, forming a convection effect, and blowing up and down the air outlet.

[0058] Note that the above are merely preferred embodiments of the present invention and the technical principles employed. Those skilled in the art will appreciate that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments, and substitutions are possible for those skilled in the art without departing from the scope of protection of the present invention. Therefore, while the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments and may include many other equivalent embodiments without departing from the scope of the present invention. The scope of the present invention is determined by the scope of the appended claims.

Claims

1. An electric air outlet transmission mechanism, characterized in that: It comprises an upper shell (1), a lower shell (21) fixed thereto, upper and lower brackets, upper and lower layers of blades connected to the upper and lower brackets, and upper and lower connecting rods respectively connecting the upper and lower layers of blades; The upper bracket is composed of an upper bracket I (2) and an upper bracket II (9) fixed thereto, and the lower bracket is composed of a lower bracket I (10) and a lower bracket II (16) fixed thereto. The upper bracket I (2) and the lower bracket I (10) are respectively connected to the upper shell (1) and the lower shell (21). The upper blades are mounted between the upper bracket I (2) and the upper bracket II (9), and the lower blades are mounted between the lower bracket I (10) and the lower bracket II (16); the upper and lower ends of the blade shafts of the upper and lower blades are respectively fitted with clearances in the mounting holes on the corresponding brackets; each blade is also provided with a short shaft structure connected to a connecting rod; The upper connecting rod (8) is located above the upper bracket II (9), and the matching holes on it are matched with the short axis structure of each blade respectively; the lower connecting rod (11) is located in front of the lower bracket I (10), and the matching holes on it are matched with the short axis structure of each blade respectively; The utility model also includes a shift fork (18), a trapezoidal thread transmission rod (19), an air distribution mechanism (20), a motor bracket (22), a motor I (23) and a motor II (24) connected to the motor bracket (22), and a dust cover (25); the shift fork (18) is sleeved on the trapezoidal thread transmission rod (19) and matched with its thread, and the trapezoidal thread transmission rod (19) can drive the shift fork (18) to move axially when it rotates; the vertical rod and the horizontal rod ends of the shift fork (18) are both provided with a U-shaped structure that can match with the connecting end of each corresponding connecting rod; one end of the trapezoidal thread transmission rod (19) matches with the axial hole of the hole opening on one side wall of the lower shell (21), and the other end matches with the axial hole opening on the motor bracket (22) fixed on the other side of the lower shell (21); the dust cover (25) is arranged in the middle of the lower shell (21), one side of which is connected to the hole opening on one side wall of the lower shell (21), and the other side is fixed to the motor bracket (22); The air distribution mechanism (20) is arranged in a cylindrical cavity formed by an upper shell (1) and a lower shell (21), and the cavity is respectively connected to the cavity connecting the upper and lower air outlets. The air distribution mechanism (20) is composed of a connecting rod and a fan-shaped structure integrally formed therewith. The two ends of the connecting rod can be limited to the installation holes reserved on both sides after the upper shell (1) and the lower shell (21) are installed; The motor I (23) is mounted on one side of the motor bracket (22), and one end of the trapezoidal thread transmission rod (19) is connected to the motor I (23) via a spline; the motor II (24) is connected to the connecting rod of the air distribution mechanism (20) via a spline.

2. The electric air outlet transmission mechanism according to claim 1, characterized in that: The upper shell (1) is fixed to the top of the lower shell and connected to the lower shell (21) via screws. The air distribution mechanism (20) is fixed to the middle of the lower shell (21) via screws.

3. The electric air outlet transmission mechanism according to claim 1, characterized in that: The upper bracket I (2) is provided with limit pins on both sides, which can be engaged with the slots provided on both sides of the upper bracket II (9); the lower bracket I (10) is also provided with limit pins on both sides, which can be engaged with the slots provided on both sides of the lower bracket II (16).

4. The electric air outlet transmission mechanism according to claim 1, characterized in that: The upper bracket I (2) and the lower bracket I (10) are respectively fixed to the bayonet joints of the upper shell (1) and the lower shell (21) through a pair of clips with deformable tongue structures.

5. The electric air outlet transmission mechanism according to claim 1, characterized in that: The upper blades include upper blade I (3), upper blade II (4), upper blade III (5), upper blade IV (6), and upper blade V (7); the lower blades include lower blade I (12), lower blade II (13), lower blade III (14), lower blade IV (15), and lower blade V (17).

6. The electric air outlet transmission mechanism according to claim 1, characterized in that: The middle of the upper and lower blades are provided with a blade shaft integrally formed therewith. The raised connection structures at the upper and lower ends of the blade shaft can respectively fit with the mounting holes on the corresponding brackets, so that under the action of external force, each blade can rotate around the blade shaft between the corresponding brackets.

7. The electric air outlet transmission mechanism according to claim 5, characterized in that: The upper and lower connecting rods are each provided with five matching holes and a connecting end. The matching holes on the upper connecting rod (8) are respectively matched with the short axis structures of the upper blade I (3), the upper blade II (4), the upper blade III (5), the upper blade IV (6), and the upper blade V (7), and are clearance-matched. The lower connecting rod (11) is located in front of the lower bracket I (10), and the matching holes on it are respectively matched with the short axis structures of the lower blade I (12), the lower blade II (13), the lower blade III (14), the lower blade IV (15), and the lower blade V (17), and are clearance-matched.

8. The electric air outlet transmission mechanism according to claim 1, characterized in that: The shift fork (18) is composed of a vertical rod connected to the upper connecting rod (8), a horizontal rod connected to the lower connecting rod (11), and a threaded sleeve arranged at the intersection of the vertical rod and the horizontal rod and connected to the vertical rod and sleeved on the trapezoidal thread transmission rod (19). The vertical rod, the horizontal rod and the threaded sleeve are integrally formed; the ends of the vertical rod, the horizontal rod and the connecting rod are all provided with a U-shaped structure that can cooperate with the connection end of each corresponding connecting rod.

9. The electric air outlet transmission mechanism according to claim 1, characterized in that: The upper shell (1) and the lower shell (21) are both provided with strip grooves for the shift fork (18) to move; under the action of external force, the shift fork (18) is driven along the axial direction of the trapezoidal thread transmission rod (19), so that it can move left and right along the strip groove, thereby driving the upper connecting rod (8) and the lower connecting rod (11) to move, so that the blades connected with the connecting rod can swing left and right.

10. The electric air outlet transmission mechanism according to claim 1, characterized in that: One end of the trapezoidal thread transmission rod (19) is provided with a spline and is connected to the motor I (23) through a spline; the motor I (23) is fixed to the motor bracket (22) through a screw, the motor II (24) is fixed to the motor bracket (22) through a screw, and the motor II (24) is connected to the connecting rod of the air distribution mechanism (20) through a spline.

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