Motor of air conditioner fan

Abstract

The utility model discloses a motor of an air conditioner fan, and relates to the field of air conditioner motors. The device comprises a motor body and a shell arranged outside the motor body, the shell comprises a shell body, a fixing shaft column, an installation fixing assembly and a silencing soft sleeve, the shell body is arranged outside the motor body, the fixing shaft column is arranged at the front end of the motor body, the installation fixing assembly is arranged on the shell body, and the silencing soft sleeve is connected to the outer surface of the shell body in a sleeving mode. An additional bearing is fixedly connected in the fixing shaft column, the installation fixing assembly comprises an elastic clamp and a lifting lug iron piece, the lifting lug iron piece is fixedly welded to the shell, the elastic clamp is arranged on the shell, and the elastic clamp and the lifting lug iron piece are provided with spring washers. According to the device, errors during installation are reduced through the elastic hoop, noise caused by loosening of screws is reduced through the spring gasket, the rotor is always located in the concentric circle center of the rotor through the additional bearing, and the noise reduction soft sleeve reduces sound caused by vibration of the motor and collision between the motor and external equipment and inhibits transmission of internal noise.

Description

Technical Field

[0001] The utility model relates to the technical field of air-conditioning motors, in particular to a motor for an air-conditioning fan. Background Art

[0002] China's air-conditioning motor industry accounts for about 90% of the world's production capacity, with a total capacity of more than 520 million units. In recent years, with the continuous expansion of the air-conditioning market, the production and sales scale of air-conditioning motors has also continued to grow. However, since 2022, the air-conditioning motor industry has entered a development bottleneck period, with the overall growth rate lower than expected, and it is expected to be in a consolidation state for a long time in the future. With the improvement of consumer income levels and changes in consumption concepts, more and more consumers are willing to use air conditioners with higher comfort and energy saving. The motor of the air conditioner fan plays a vital role in the refrigeration system, so the requirements for motors in air conditioners will also be more stringent.

[0003] The principle of the motor is to use the principle of interaction between current and magnetic field to drive the blades to rotate, thereby generating airflow. The same is true for the application in air conditioners. The motor of the air conditioner fan is specifically installed in different parts of the air conditioner. Generally speaking, it is mainly divided into indoor fan motor and outdoor fan motor, so the role it plays is also different. For example, the main function of the indoor fan motor is to drive the indoor fan to rotate, suck in the indoor air and exchange heat through the evaporator, and then blow out the cooled air to reduce the indoor temperature and circulate the air. The indoor fan motor can quickly circulate the indoor air and improve the cooling or heating efficiency. However, some shortcomings also lead to the need for improvement of the indoor motor: in the pursuit of low noise indoor fan motor, due to errors in the installation process or aging of components after a long time, the motor will have vibration and noise caused by improper installation and loose screws; and the rotor in the core area of ​​the motor may also cause wear and aging over time and cannot rotate in a concentric circle with the stator, and noise will be generated when rotating. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides an air conditioner fan motor, which solves the problem that in the indoor unit fan motor that pursues low noise, the motor may have vibration and noise caused by improper installation and loose screws due to errors in the installation process or aging of components after a long time; and the rotor in the core area of ​​the motor may also cause wear and aging over time and cannot rotate in a concentric circle with the stator, and noise will be generated during rotation.

[0005] To achieve the above objectives, the utility model is implemented through the following technical solutions: an air conditioner fan motor, comprising a motor body and a shell arranged outside the motor body, the shell comprising a shell, a fixed shaft column, a mounting and fixing component and a silencer soft sleeve, the shell is arranged outside the motor body, the fixed shaft column is arranged at the front end of the motor body, the mounting and fixing component is arranged on the shell, the silencer soft sleeve is sleeved on the outer surface of the shell, an additional bearing is fixedly connected in the fixed shaft column, the mounting and fixing component comprises an elastic clamp and a hanging ear iron piece, the hanging ear iron piece is fixedly welded to one end of the shell close to the fixed shaft column, the elastic clamp is arranged at one end of the shell away from the fixed shaft column, and spring washers are arranged in the elastic clamp and the hanging ear iron piece.

[0006] Preferably, the motor body includes a stator, a heat sink, a wire interface and a rotor, the heat sink is fixedly connected to the outer wall of the stator, the wire interface is fixedly connected to the lower end of the rear wall of the stator, and the rotor is rotatably connected to the inside of the stator.

[0007] Preferably, the shell also includes a front heat dissipation cover and a rear heat dissipation cover, one end of the front heat dissipation cover is fixedly connected to the shell, the other end of the front heat dissipation cover is fixedly connected to the fixed shaft column, one end of the rear heat dissipation cover is fixedly connected to the shell, and the other end of the rear heat dissipation cover is fixedly connected to the rear wall of the stator.

[0008] Preferably, the housing further comprises a fixing column, wherein the fixing column is fixedly connected to the inner wall of the housing and the outer wall of the stator, and the fixing column is movably clamped in the elastic clamp.

[0009] Preferably, the shaft column of the rotor is rotatably connected in an additional bearing, and the additional bearing and the shaft column of the rotor are provided with anti-slip soft rings.

[0010] Preferably, the elastic clamp and the ear iron piece are also provided with a type one fixing bolt and a type two locking bolt, and two groups of the type one fixing bolts are provided. The two groups of the type one fixing bolts are respectively threadedly connected to the top of the elastic clamp and the ear iron piece, and the type two locking bolts are threadedly connected to the bottom of the elastic clamp, and the spring gasket is installed on the outer surfaces of the type one fixing bolt and the type two locking bolt.

[0011] The utility model discloses a motor for an air conditioner fan, which has the following beneficial effects: the arrangement of an elastic clamp reduces installation errors, the arrangement of a spring gasket reduces noise caused by screw loosening, the arrangement of an additional bearing ensures that the rotor is always located at the concentric center of the rotor, and the silencer sleeve reduces the sound caused by the vibration of the motor and the collision with external equipment and suppresses the transmission of internal noise. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0013] Figure 1 This is a schematic diagram of the overall front structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the overall structure of the motor body of the utility model;

[0015] Figure 3 This is a schematic diagram of the overall structure of the front side of the housing of the utility model;

[0016] Figure 4 This is a schematic diagram of the back structure of the housing of the utility model;

[0017] Figure 5 This is a schematic diagram of the overall structure of the fixed shaft column of the utility model;

[0018] Figure 6 This is a schematic diagram of the overall structure of the elastic clamp of the utility model;

[0019] Figure 7 It is a schematic diagram of the overall structure of the hanging ear iron sheet of the utility model.

[0020] In the figure: 1. Motor body; 11. Stator; 12. Heat sink; 13. Wire interface; 14. Rotor; 2. Outer shell; 21. Shell; 22. Front heat sink cover; 23. Fixed shaft column; 231. Anti-skid soft ring; 232. Additional bearing; 24. Mounting and fixing assembly; 241. Elastic clamp; 2411. Type I fixing bolt; 2412. Type II locking bolt; 2413. Spring washer; 242. Iron hanging ear; 25. Fixed column; 26. Rear heat sink cover; 27. Silencer soft sleeve. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution in the embodiments of the utility model is described clearly and completely. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] The embodiment of the present application provides an electric motor for an air conditioner fan, thereby solving the problem of vibration and noise caused by improper installation and loose screws in the indoor unit fan motor that pursues low noise due to errors in the installation process or aging of components after a long time; the rotor in the core area of ​​the motor may also cause wear and aging over time and cannot rotate in a concentric circle with the stator, generating noise when rotating.

[0023] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0024] The utility model embodiment discloses a motor for a fan of an air conditioner.

[0025] According to the attached Figure 1-7 As shown, it includes a motor body 1 and a housing 2 arranged outside the motor body 1, the housing 2 includes a shell 21, a fixed shaft column 23, a mounting and fixing component 24 and a silencer soft sleeve 27, the shell 21 is arranged outside the motor body 1, the fixed shaft column 23 is arranged at the front end of the motor body 1, the mounting and fixing component 24 is arranged on the shell 21, the silencer soft sleeve 27 is sleeved on the outer surface of the shell 21, the fixed shaft column 23 is fixedly connected with an additional bearing 232, the mounting and fixing component 24 includes an elastic clamp 241 and a hanging ear iron piece 242, and the hanging ear iron piece 242 is fixedly welded to the shell 21 near the fixed At one end of the shaft column 23, an elastic clamp 241 is arranged at an end of the shell 21 away from the fixed shaft column 23, and spring washers 2413 are arranged in the elastic clamp 241 and the hanging ear iron piece 242. The arrangement of the elastic clamp 241 and the hanging ear iron piece 242 reduces the difficulty of installation and makes the fixation firm. The spring washers 2413 are arranged therein so that the screw fixation is more firm and not easy to loosen. The additional bearing 232 fixed in the fixed shaft column 23 can fix the shaft column of the rotor 14 in the concentric circle of the stator 11 without any deviation, vibration or noise.

[0026] The motor body 1 includes a stator 11, a heat sink 12, a wire interface 13 and a rotor 14. The heat sink 12 is fixedly connected to the outer wall of the stator 11, the wire interface 13 is fixedly connected to the lower end of the rear wall of the stator 11, and the rotor 14 is rotatably connected to the inside of the stator 11. By arranging the heat sink 12 on the outer wall of the stator 11, the heat dissipation effect of the motor is increased.

[0027] The housing 2 also includes a front heat dissipation cover 22 and a rear heat dissipation cover 26, one end of the front heat dissipation cover 22 is fixedly connected to the shell 21, the other end of the front heat dissipation cover 22 is fixedly connected to the fixed shaft column 23, one end of the rear heat dissipation cover 26 is fixedly connected to the shell 21, and the other end of the rear heat dissipation cover 26 is fixedly connected to the rear wall of the stator 11. By providing the front heat dissipation cover 22 and the rear heat dissipation cover 26, combined with the heat dissipation fins 12 on the outer wall of the stator 11, the airflow passes through the rear heat dissipation cover 26 to reduce the temperature of the heat dissipation fins 12 and carry away the heat through the front heat dissipation cover 22.

[0028] The housing 2 further includes a fixing column 25, which is fixedly connected to the inner wall of the shell 21 and the outer wall of the stator 11. The fixing column 25 is movably clamped in the elastic clamp 241. The housing 2 is fixed to the motor body 1 through the fixing column 25 and cannot be loosened.

[0029] The shaft column of the rotor 14 is rotatably connected in the additional bearing 232, and the additional bearing 232 and the shaft column of the rotor 14 are provided with an anti-skid soft ring 231. By providing the anti-skid soft ring 231 between the shaft column of the rotor 14 and the additional bearing 232, the slippage between the rotor 14 and the additional bearing 232 is effectively reduced, and the vibration transmitted from the rotor 14 can be effectively weakened, thereby reducing the noise in disguise.

[0030] The elastic clamp 241 and the ear iron piece 242 are also provided with a type one fixing bolt 2411 and a type two locking bolt 2412. There are two groups of type one fixing bolts 2411. The two groups of type one fixing bolts 2411 are respectively threadedly connected to the top of the elastic clamp 241 and the ear iron piece 242, and the type two locking bolts 2412 are threadedly connected to the bottom of the elastic clamp 241. The spring gasket 2413 is installed on the outer surfaces of the type one fixing bolts 2411 and the type two locking bolts 2412. The type one fixing bolts 2411 are responsible for docking with other equipment components, and the type two locking bolts 2412 are responsible for tightening the elastic clamp 241 to fix the fixing column 25.

[0031] In summary, the above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. The technicians in this industry should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. An air conditioner fan motor, comprising a motor body (1) and a housing (2) arranged outside the motor body (1), characterized in that: The housing (2) comprises a shell (21), a fixed shaft column (23), a mounting and fixing component (24) and a sound-absorbing soft sleeve (27); The housing (21) is arranged outside the motor body (1), the fixed shaft column (23) is arranged at the front end of the motor body (1), the mounting and fixing component (24) is arranged on the housing (21), the muffler soft sleeve (27) is sleeved on the outer surface of the housing (21), an additional bearing (232) is fixedly connected inside the fixed shaft column (23), and the mounting and fixing component (24) comprises an elastic clamp (241) and a hanging ear iron piece (242); The hanging ear iron piece (242) is fixedly welded to one end of the housing (21) close to the fixed shaft column (23), and the elastic clamp (241) is arranged at one end of the housing (21) away from the fixed shaft column (23). Spring washers (2413) are arranged in both the elastic clamp (241) and the hanging ear iron piece (242).

2. The motor of an air conditioner fan according to claim 1, characterized in that: The motor body (1) comprises a stator (11), a heat sink (12), a wire interface (13) and a rotor (14); The heat sink (12) is fixedly connected to the outer wall of the stator (11), the wire interface (13) is fixedly connected to the lower end of the rear wall of the stator (11), and the rotor (14) is rotatably connected to the inside of the stator (11).

3. The motor of an air conditioner fan according to claim 2, characterized in that: The housing (2) further comprises a front heat dissipation cover (22) and a rear heat dissipation cover (26); One end of the front heat dissipation cover (22) is fixedly connected to the housing (21), and the other end of the front heat dissipation cover (22) is fixedly connected to the fixed shaft column (23); one end of the rear heat dissipation cover (26) is fixedly connected to the housing (21), and the other end of the rear heat dissipation cover (26) is fixedly connected to the rear wall of the stator (11).

4. The motor for an air conditioner fan according to claim 3, characterized in that: The housing (2) further comprises a fixing column (25), wherein the fixing column (25) is fixedly connected to the inner wall of the housing (21) and the outer wall of the stator (11), and the fixing column (25) is movably clamped in the elastic clamp (241).

5. The motor for an air conditioner fan according to claim 4, characterized in that: The shaft column of the rotor (14) is rotatably connected in the additional bearing (232), and the additional bearing (232) and the shaft column of the rotor (14) are provided with an anti-slip soft ring (231).

6. The motor for an air conditioner fan according to claim 5, characterized in that: The elastic clamp (241) and the hanging ear iron piece (242) are also provided with a first-type fixing bolt (2411) and a second-type locking bolt (2412); The type-one fixing bolts (2411) are provided in two groups, the two groups of the type-one fixing bolts (2411) are respectively threadedly connected to the top of the elastic clamp (241) and the hanging ear iron piece (242), the type-two locking bolts (2412) are threadedly connected to the bottom of the elastic clamp (241), and the spring washers (2413) are installed on the outer surfaces of the type-one fixing bolts (2411) and the type-two locking bolts (2412).

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