Cabinet machine air distribution baffle drive structure

Abstract

The utility model relates to air conditioner cabinet machine field especially, more accurate control cabinet machine air distribution baffle drive structure of air distribution baffle rotation angle, including air distribution baffle and drive motor, the output shaft of drive motor is connected with the baffle rotation axis of air distribution baffle through drive assembly, drive assembly includes arc gear rack and gear, and the engagement cooperation between arc gear rack and gear, the radius of arc gear rack index circle is greater than the radius of gear index circle, gear and drive motor's output shaft fixed connection, the rotation axis of gear and drive motor's output shaft coaxial arrangement, arc gear rack and baffle rotation axis of air distribution baffle fixed connection, the rotation axis of arc gear rack and baffle rotation axis of air distribution baffle coaxial arrangement. The utility model is especially applicable to cabinet machine air distribution baffle's drive structure among.

Description

Technical Field

[0001] This utility model relates to the field of air conditioner cabinet units, and in particular to a cabinet unit air distribution baffle drive structure. Background Technology

[0002] Floor-standing air conditioners utilize a split-flow design, employing specific air delivery structures and airflow guiding technologies to distribute airflow to different areas of the room as needed. The core objective is to improve comfort and energy efficiency. A common split-flow method involves a cross-flow fan and a split-flow baffle, delivering air to the air outlets on either side of the baffle. Rotating the baffle adjusts the airflow volume of each outlet, achieving the desired split-flow effect from the cross-flow fan.

[0003] The existing method of rotating the air distributor baffle uses a drive motor, typically a stepper motor. Specifically, the output shaft of the drive motor is connected to the baffle's rotating shaft via a coupling or other drive assembly. The rotating output shaft drives the baffle's rotating shaft to rotate clockwise or counterclockwise, thus allowing the air distributor to rotate left or right. However, due to the high speed of the motor and the lack of speed adjustment capabilities in the coupling and other drive assemblies, the air distributor rotates at a relatively fast speed, resulting in coarse control and difficulty in achieving high-precision rotation control at small angles. Furthermore, the high-speed airflow from the main air outlet can cause the air distributor to sway when rotating to certain angles. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a cabinet air conditioner air conditioner drive structure that can more accurately control the rotation angle of the air conditioner ...

[0005] The technical solution adopted by this utility model to solve its technical problem is: a cabinet air distribution baffle drive structure, including an air distribution baffle and a drive motor. The output shaft of the drive motor is connected to the baffle rotation shaft of the air distribution baffle through a drive assembly. The drive assembly includes an arc-shaped rack and a gear, which mesh with each other. The radius of the pitch circle of the arc-shaped rack is larger than the radius of the pitch circle of the gear. The gear is fixedly connected to the output shaft of the drive motor, and the rotation axis of the gear is coaxial with the output shaft of the drive motor. The arc-shaped rack is fixedly connected to the baffle rotation shaft of the air distribution baffle, and the rotation axis of the arc-shaped rack is coaxial with the baffle rotation shaft of the air distribution baffle.

[0006] Furthermore, it includes a limiting boss for limiting the rotation angle of the arc-shaped rack, with the limiting boss located on both sides of the arc-shaped rack.

[0007] Furthermore, it includes an arc-shaped rack and pinion shaft, with the arc-shaped rack and pinion shaft fixedly connected, and the axis of the arc-shaped rack and pinion shaft being coaxial with the rotation axis of the arc-shaped rack; the bottom of the arc-shaped rack and pinion shaft is fixedly connected to the top of the baffle rotation shaft.

[0008] Furthermore, a limiting groove is provided at the bottom of the arc-shaped rack shaft, and the cross-sectional shape of the limiting groove is an oblong hole shape. A boss matching the limiting groove is provided at the top of the baffle rotating shaft, and the boss is located in the limiting groove.

[0009] Furthermore, the arc-shaped rack shaft is provided with an arc-shaped rack positioning hole, and the top of the boss is provided with a baffle rotation shaft positioning hole. The arc-shaped rack positioning hole and the baffle rotation shaft positioning hole are coaxially arranged, and fastening screws are provided in the arc-shaped rack positioning hole and the baffle rotation shaft positioning hole.

[0010] Furthermore, the gear includes a gear mounting hole, which is oblong in shape, and the cross-sectional shape of the output shaft of the drive motor is adapted to the gear mounting hole.

[0011] Furthermore, the drive motor is a stepper motor, and the rotation direction of the stepper motor includes forward and reverse rotation.

[0012] The beneficial effects of this utility model are as follows: 1. In actual use, the output shaft of the drive motor rotates, which in turn drives the gear to rotate. The rotating gear drives the arc-shaped rack to rotate, and the rotating rack drives the air deflector to rotate, thus realizing the drive motor's control over the air deflector. The arc-shaped rack and gear mesh with each other. Since the radius of the arc-shaped rack's pitch circle is larger than that of the gear's pitch circle, the angular velocity of the arc-shaped rack can be less than that of the gear when the gear drives it to rotate. This significantly reduces the angular velocity of the air deflector compared to the gear's angular velocity, allowing for precise control of the air deflector's rotation angle at a lower angle, greatly improving the adjustment accuracy of the air deflector. 2. By setting limiting bosses on both sides of the arc-shaped rack, when the arc-shaped rack rotates to be in close contact with one of the limiting bosses, it cannot continue to rotate due to the obstruction of the limiting boss, thus preventing the arc-shaped rack from disengaging from the gear due to excessive rotation. Third, by using the cooperation between the limiting groove and the boss, and ensuring that the cross-sectional shape of the limiting groove is an oblong hole, the boss will not slip within the limiting groove during rotation, thus guaranteeing the stability of the transmission. This utility model is particularly suitable for the drive structure of the air distribution baffle of a cabinet air conditioner. Attached Figure Description

[0013] Figure 1 This is a schematic diagram showing the interaction between the arc-shaped rack, gear, and stepper motor of this utility model.

[0014] Figure 2This is a schematic diagram of the arc-shaped rack and the arc-shaped rack shaft of this utility model.

[0015] Figure 3 This is a schematic diagram of the gear of this utility model.

[0016] Figure 4 This is a schematic diagram of the wind deflector and the deflector rotation shaft of this utility model.

[0017] Figure 5 yes Figure 4 Enlarged view of the boss on the top of the center-partition wind deflector and the positioning hole for the deflector's rotating shaft.

[0018] Figure 6 This is a schematic diagram showing the positional relationship between the air distribution baffle and the cross-flow fan.

[0019] Figure 7 This is a schematic diagram showing the positional relationship between the air outlet, cross-flow fan, air distribution baffle, and air inlet.

[0020] Figure 8 This is a schematic diagram showing the air vent located on the front cover.

[0021] Figure 9 This is a schematic diagram showing the air inlet located on the rear cover.

[0022] The components in the diagram are marked as follows: rear shell 1, air inlet 11, front shell 2, air outlet 21, main air outlet 22, air distribution baffle 3, arc-shaped rack 31, boss 32, baffle rotation shaft positioning hole 33, fastening screw 34, arc-shaped rack positioning hole 35, arc-shaped rack rotating shaft 36, baffle rotation shaft 37, stepper motor 4, gear 41, gear mounting hole 42, cross-flow fan 5, fixed top plate 6, cross-flow fan mounting hole 61, and limiting boss 62. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings.

[0024] like Figures 1 to 9 As shown, the indoor unit of the cabinet air conditioner is composed of a front shell 2 and a rear shell 1 that are fastened together. The air outlet 21 is located on the front shell 2, and the air inlet 11 is located on the rear shell 1. Figure 6 and Figure 7As shown, air first enters the indoor unit through the air inlet 11, then passes through the cross-flow fan 5 and enters the main air outlet 22. The air in the main air outlet 22 is then discharged into the room through the air outlet 21. The air outlet 21 is divided into a left air outlet and a right air outlet. A baffle 3 is located inside the main air outlet 22, between the left and right air outlets. In actual use, by adjusting the angle of the baffle 3, more air from the main air outlet 22 can be directed to the left air outlet or more air to the right air outlet, thereby adjusting the airflow from the air outlet 21.

[0025] like Figure 1 and Figure 2 As shown, the teeth of the arc-shaped rack 31 face the gear 41 and mesh with the teeth of the gear 41. The arc-shaped rack 31 and the arc-shaped rack shaft 36 are connected as a single structure by two connecting ribs extending radially along the arc-shaped rack 31. The center of the arc-shaped rack 31, that is, the center of the pitch circle of the arc-shaped rack 31, is set on the axis of the arc-shaped rack shaft 36, and the arc-shaped rack 31 rotates around the axis of the arc-shaped rack shaft 36. The axis of the arc-shaped rack positioning hole 35 is coaxial with the axis of the arc-shaped rack shaft 36.

[0026] like Figure 1 and Figure 3 As shown, gear 41 meshes with the arc-shaped rack 31. The cross-sectional shape of the output shaft of the stepper motor 4 is adapted to the hole shape of the gear mounting hole 42, which is an oblong hole. The oblong hole shape is formed by two semicircular arcs and two straight lines, similar to the shape of a common running track. The output shaft of the stepper motor 4 is disposed in the gear mounting hole 42 to prevent the output shaft of the stepper motor 4 from slipping in the gear mounting hole 42 when rotating.

[0027] like Figure 4 and Figure 5As shown, the air distribution baffle 3 has a common rectangular structure. The baffle rotation shaft 37 is set along the length of the air distribution baffle 3, and the baffle rotation shaft 37 is fixed to one of the sides along the length of the air distribution baffle 3. The rotation axis of the air distribution baffle 3 is also the axis of the baffle rotation shaft 37. A boss 32 is provided on the top of the baffle rotation shaft 37. The boss 32 is adapted to the shape of the limiting groove at the bottom of the arc-shaped rack rotation shaft 36, allowing the boss 32 to be inserted into the limiting groove. The cross-sectional shape of the limiting groove can be selected to be the aforementioned waist-shaped hole shape to ensure that the boss 32 will not slip in the limiting groove when rotating. Furthermore, a baffle rotation shaft positioning hole 33 is provided at the center of the top of the boss 32. The fastening screw 34 is set in the arc-shaped rack positioning hole 35 and the baffle rotation shaft positioning hole 33, thereby fixing the arc-shaped rack rotation shaft 36 to the top of the boss 32, realizing the fixed connection between the air distribution baffle 3 and the arc-shaped rack 31. At this point, the rotation axis of the arc-shaped rack 31 is coaxial with the axis of the baffle rotation axis 37.

[0028] In actual installation, a fixed top plate 6 is installed near the top inside the indoor unit. The fixed top plate 6 can be fixedly installed on the front shell 2 and the rear shell 1, and the fixed top plate 6 is installed horizontally. A cross-flow fan mounting hole 61 is provided at the center of the fixed top plate 6 for installing the cross-flow fan 5. The stepper motor 4 is fixedly installed on the fixed top plate 6, and the baffle rotating shaft 37 is rotatably installed on the fixed top plate 6. Two limiting bosses 62 are provided on the top surface of the fixed top plate 6, which are respectively provided on both sides of the arc-shaped rack 31. There is a certain gap between the limiting bosses 62 and the arc-shaped rack 31, but when the arc-shaped rack 31 rotates toward one of the limiting bosses 62 and the gap becomes zero, the limiting boss 62 blocks the arc-shaped rack 31, thus preventing the arc-shaped rack 31 from continuing to rotate in the original direction of rotation. The arc-shaped rack and pinion shaft 36 is fixedly connected to the boss 32, and the gear 41 is fixedly connected to the output shaft of the stepper motor 4. The arc-shaped rack and pinion shaft 36 and the gear 41 mesh with each other. Driven by the stepper motor 4, the gear 41 rotates forward or backward, thereby driving the arc-shaped rack 31 and the arc-shaped rack and pinion shaft 36 to rotate, ultimately causing the angle of the air distribution baffle 3 to rotate. As the angle of the air distribution baffle 3 changes, the amount of air in the main air outlet 22 connected to the cross-flow fan 5 that is divided by the air distribution baffle 3 to the left and the amount of air to the right changes, thus realizing the airflow adjustment of the left and right air outlets.

Claims

1. A cabinet air conditioner baffle drive structure, comprising an air baffle (3) and a drive motor, wherein the output shaft of the drive motor is connected to the baffle rotation shaft (37) of the air baffle (3) via a drive assembly, characterized in that: The drive assembly includes an arc rack (31) and a gear (41), which mesh with each other. The radius of the pitch circle of the arc rack (31) is greater than the radius of the pitch circle of the gear (41). The gear (41) is fixedly connected to the output shaft of the drive motor. The rotation axis of the gear (41) is coaxial with the output shaft of the drive motor. The arc rack (31) is fixedly connected to the baffle rotation shaft (37) of the air distribution baffle (3). The rotation axis of the arc rack (31) is coaxial with the baffle rotation shaft (37) of the air distribution baffle (3).

2. The cabinet air distribution baffle drive structure as described in claim 1, characterized in that: It includes a limiting boss (62) for limiting the rotation angle of the arc-shaped rack (31), and the limiting boss (62) is provided on both sides of the arc-shaped rack (31).

3. The cabinet air distribution baffle drive structure as described in claim 1 or 2, characterized in that: It includes an arc-shaped rack shaft (36), an arc-shaped rack (31) and an arc-shaped rack shaft (36) are fixedly connected, and the axis of the arc-shaped rack shaft (36) is coaxial with the rotation axis of the arc-shaped rack (31); the bottom of the arc-shaped rack shaft (36) is fixedly connected to the top of the baffle rotation shaft (37).

4. The cabinet air distribution baffle drive structure as described in claim 3, characterized in that: The bottom of the arc-shaped rack shaft (36) is provided with a limiting groove, the cross-sectional shape of the limiting groove is a waist-shaped hole, and the top of the baffle shaft (37) is provided with a boss (32) that matches the limiting groove, the boss (32) is located in the limiting groove.

5. The cabinet air distribution baffle drive structure as described in claim 4, characterized in that: The arc-shaped rack shaft (36) is provided with an arc-shaped rack positioning hole (35), and the top of the boss (32) is provided with a baffle rotating shaft positioning hole (33). The arc-shaped rack positioning hole (35) and the baffle rotating shaft positioning hole (33) are coaxially arranged, and fastening screws (34) are provided in the arc-shaped rack positioning hole (35) and the baffle rotating shaft positioning hole (33).

6. The cabinet air distribution baffle drive structure as described in claim 1 or 2, characterized in that: The gear (41) includes a gear mounting hole (42), which is a waist-shaped hole, and the cross-sectional shape of the output shaft of the drive motor is adapted to the gear mounting hole.

7. The cabinet air distribution baffle drive structure as described in claim 1 or 2, characterized in that: The drive motor is a stepper motor (4), and the rotation direction of the stepper motor (4) includes forward rotation and reverse rotation.

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