Air conditioner motor and rotating shaft assembling structure
By fixing the motor output shaft in the shaft hole using the limiting slots and hooks of the bracket structure, the problem of motor output shaft detachment and unstable fit is solved, and a stable connection between the air conditioner motor and the shaft is achieved. This is suitable for the opening and closing control of air conditioner dampers and air guide vanes.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SICHUAN CHANGHONG AIR CONDITIONER CO LTD
- Filing Date
- 2025-05-19
- Publication Date
- 2026-05-19
AI Technical Summary
In air conditioning products, the output shaft of a stepper motor is prone to detaching from the shaft hole when driving plastic parts. Furthermore, after long-term operation and wear, the fit becomes unstable, leading to deformation and detachment of parts.
The bracket structure includes a base plate, a limit slot, a hook, and a limit platform. The motor output shaft is fixed in the shaft hole by the limit groove and fastening screws to ensure a stable connection between the motor and the shaft.
It ensures that the motor output shaft remains within the shaft hole during rotation, preventing it from disengaging and guaranteeing a stable fit between the motor and the shaft. It is particularly suitable for the opening and closing control of air conditioning dampers or air guide vanes.
Smart Images
Figure CN224264772U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of air conditioning, and in particular to an air conditioning motor and shaft assembly structure. Background Technology
[0002] When stepper motors in air conditioning products drive larger plastic components (such as dampers and air guide vanes), they typically use relatively small, hard plastic parts between the stepper motor's output shaft and the damper's rotating shaft to transmit torque, in order to avoid excessive force on the damper during rotation and thus prevent component deformation.
[0003] Because the motor output shaft is fixed within the shaft hole of the input shaft, and the shaft hole and the motor output shaft are generally subject to a slight interference fit or a small clearance fit, the shaft with a clearance fit may fall out of the shaft hole during assembly. Furthermore, after long-term operation and wear, both slight interference fits and small clearance fits will experience slight deformation of the inner wall of the shaft hole, leading to a situation where the motor output shaft and the shaft hole actually form a clearance fit. In this case, if the shaft does not have a corresponding limiting structure, the motor output shaft will also detach from the shaft hole. Utility Model Content
[0004] The technical problem to be solved by this utility model is to provide an air conditioner motor and shaft assembly structure that, by adding a bracket structure, ensures that the motor output shaft is always set in the shaft hole.
[0005] The technical solution adopted by this utility model to solve its technical problem is: an air conditioner motor and shaft assembly structure, including a motor and a shaft, the shaft including a shaft input shaft, the motor output shaft of the motor being fixedly installed in the shaft hole of the shaft input shaft, the shaft input shaft including a limiting groove arranged around the shaft input shaft; including a bracket structure, the bracket structure including a base plate, the side of the base plate being provided with a limiting slot, the limiting slot being engaged in the limiting groove, the base plate being provided with at least one limiting hook, the hook being engaged in the motor, the hook being used to fix the motor to the base plate.
[0006] Furthermore, a limiting platform is provided on the base plate, and the limiting platforms are arranged in pairs, with the side ears of the motor arranged between the pairs of limiting platforms.
[0007] Furthermore, positioning holes are provided between the paired limiting platforms, and the fastening screws on the side ears are fixed in the positioning holes.
[0008] Furthermore, the hooks are installed in pairs, with the motor positioned between the hooks.
[0009] Furthermore, the opening shape of the limiting slot is U-shaped.
[0010] Furthermore, the motor is a stepper motor.
[0011] Furthermore, the rotating shaft includes a rotating shaft connecting rod and a rotating shaft output shaft. The rotating shaft output shaft and the rotating shaft input shaft are arranged in parallel and are connected by the rotating shaft connecting rod.
[0012] The beneficial effects of this utility model are as follows: 1. In actual use, the motor output shaft rotates and drives the shaft input shaft to rotate, thereby driving the shaft to rotate. During the rotation of the shaft, the limiting latch is always constrained by the limiting groove, and the limiting latch makes a circular motion around the shaft input shaft. Since the base plate and the motor are fixed together by the hooks, the motor is always constrained by the hooks and will not fall off the base plate. Therefore, the motor output shaft is always positioned within the shaft hole. 2. Due to the constraints of the paired limiting platforms and the fastening screws in the positioning holes, the motor can be stably mounted on the base plate during startup and operation. 3. When the motor is a stepper motor, the constraint of the bracket structure can ensure the stability of the fit between the stepper motor and the shaft, preventing the motor output shaft from disengaging from the shaft hole during the initial startup phase. This utility model is particularly suitable for the opening and closing control mechanism of air conditioning dampers or air guide vanes. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of one embodiment of the present invention.
[0014] Figure 2 yes Figure 1 Side view.
[0015] Figure 3 This is a schematic diagram of the rotating shaft of this utility model.
[0016] Figure 4 This is a schematic diagram of the support structure of this utility model.
[0017] Figure 5 This is a schematic diagram of the motor of this utility model.
[0018] Figure 6 This is a schematic diagram of the air vent panel of an air conditioner.
[0019] Figure 7 This is a diagram of the air inlet of an air conditioner.
[0020] The components in the diagram are labeled as follows: air conditioner housing 1, base 11, damper panel 12, air inlet 13, rotating shaft 2, rotating shaft input shaft 21, rotating shaft connecting rod 22, rotating shaft output shaft 23, limiting groove 24, rotating shaft hole 25, motor 3, motor output shaft 31, side ear 32, bracket structure 4, hook 41, limiting slot 42, limiting platform 43, positioning hole 44, and base plate 45. Detailed Implementation
[0021] The present invention will be further described below with reference to the accompanying drawings.
[0022] like Figures 1 to 7 The diagram shows an embodiment of the air conditioner motor and shaft assembly structure, which mainly includes three major components: shaft 2, motor 3, and bracket structure 4. The air conditioner housing 1 is mounted on the bottom surface via base 11. After the damper panel 12 is opened, air enters the air conditioner housing 1 through the air inlet 13 and is then blown out through the air outlet formed after the damper panel 12 is opened. Figure 5 The motor shown is motor 3, which can be a stepper motor. The housing of motor 3 is cylindrical. The motor output shaft 31 extends downward along the axis of the housing of motor 3. Side ears 32 are provided on both sides of the housing of motor 3. Figure 4 The diagram shows the support structure 4. The base plate 45 of the support structure 4 is a flat plate structure. A limiting slot 42 is provided on the side of the base plate 45. The limiting slot 42 can be U-shaped. Hooks 41 are provided opposite to each other on the base plate 45. The hooks 41 extend upward in a direction perpendicular to the base plate 45 and bend at the end to form a hook. The top of the motor 3 is hooked by the hook formed by the bend at the end and firmly restrained on the base plate 45. A pair of limiting platforms 43 are provided on the base plate 45, and a limiting platform 43 is provided between the pairs of limiting platforms 43. Figure 3 The diagram shows rotating shaft 2. Rotating shaft output shaft 23 and rotating shaft input shaft 21 are arranged in parallel and connected by rotating shaft connecting rod 22. A rotating shaft hole 25 is provided inwardly at the end of rotating shaft input shaft 21 for mounting motor output shaft 31. A limiting groove 24 is provided around rotating shaft input shaft 21. The length of the limiting groove 24 needs to be determined according to the rotation angle of motor output shaft 31 to ensure that the U-shaped limiting slot 42 is always engaged within the limiting groove 24 when motor output shaft 31 is at its extreme positions in both forward and reverse rotation.
[0023] like Figure 1 and Figure 2The diagram shows the assembled structure of the three main components: the rotating shaft 2, the motor 3, and the bracket structure 4. The limiting slot 42 of the bracket structure 4 engages with the limiting groove 24, and the hook of the latch 41 secures the top of the motor 3. Because the motor output shaft 31 is located within the rotating shaft hole 25 of the rotating shaft 2, the motor 3 is held in place by the bracket structure 4 and will not fall off. When the motor 3 rotates, the motor output shaft 31 drives the rotating shaft 2 to rotate through the rotating shaft hole 25. The rotating shaft connecting rod 22 and the rotating shaft output shaft 23 of the rotating shaft 2 rotate around the rotating shaft hole 25, thereby causing the rotating shaft output shaft 23 to drive the air vent panel 12 on the air conditioner casing 1 to open or close. When the motor output shaft 31 rotates, there is no relative movement between the motor 3 and the base plate 45. A relative sliding was observed between the rotating limiting groove 24 and the limiting slot 42 of the base plate 45. Due to the presence of the limiting groove 24, this sliding did not cause the limiting slot 42 to slide out of the limiting groove 24, ensuring the stability of the structure during operation. The side ears 32 on both sides of the motor 3 are confined within paired limiting platforms 43, and further, fastening screws are provided on the side ears 32, fixing them within the positioning holes 44, achieving a stable connection between the side ears 32 and the base plate 45, and enhancing the stability of the connection between the side ears 32 and the base plate 45. After assembling the above assembly structure, the rotating shaft output shaft 23 is aligned with the damper panel rotating shaft hole on the damper panel 12 and inserted. The air conditioning motor and rotating shaft assembly structure are pressed onto the mating surface with the internal frame of the air conditioning housing 1, and then the locking screws are installed to complete the assembly.
Claims
1. An air conditioner motor and shaft assembly structure, comprising a motor (3) and a shaft (2), wherein the shaft (2) includes a shaft input shaft (21), and the motor output shaft (31) of the motor (3) is fixedly disposed within the shaft hole (25) of the shaft input shaft (21), characterized in that: The rotating shaft input shaft (21) includes a limiting groove (24) disposed around the rotating shaft input shaft (21); The bracket structure (4) includes a base plate (45). The side of the base plate (45) is provided with a limiting slot (42). The limiting slot (42) is engaged in the limiting groove (24). At least one limiting hook (41) is provided on the base plate (45). The hook (41) is engaged in the motor (3). The hook (41) is used to fix the motor (3) on the base plate (45).
2. The air conditioner motor and shaft assembly structure as described in claim 1, characterized in that: A limiting platform (43) is provided on the base plate (45). The limiting platforms (43) are arranged in pairs, and the side ears (32) of the motor (3) are arranged between the pairs of limiting platforms (43).
3. The air conditioner motor and shaft assembly structure as described in claim 2, characterized in that: A positioning hole (44) is provided between the paired limiting platforms (43), and the fastening screw on the side ear (32) is fixed in the positioning hole (44).
4. The air conditioner motor and shaft assembly structure as described in any one of claims 1 to 3, characterized in that: The hooks (41) are set in pairs, and the motor (3) is set between the hooks (41).
5. The air conditioner motor and shaft assembly structure as described in any one of claims 1 to 3, characterized in that: The opening shape of the limiting slot (42) is U-shaped.
6. The air conditioner motor and shaft assembly structure as described in any one of claims 1 to 3, characterized in that: The motor (3) is a stepper motor.
7. The air conditioner motor and shaft assembly structure as described in any one of claims 1 to 3, characterized in that: The rotating shaft (2) includes a rotating shaft connecting rod (22) and a rotating shaft output shaft (23). The rotating shaft output shaft (23) and the rotating shaft input shaft (21) are arranged in parallel and are connected by the rotating shaft connecting rod (22).