AC axial flow fan

Abstract

The AC axial flow fan comprises a shell, a stator assembly and a rotor assembly, a hollow cavity, an air inlet and an air outlet are formed in the shell, the hollow cavity is communicated with the outside through the air inlet and the air outlet, a stator assembly installation plate is arranged in the center of the air inlet and connected with a shell body through a plurality of ribs, and the rotor assembly is arranged in the shell body. The rotor assembly is rotatably assembled in the cavity and is electromagnetically coupled with the stator assembly, one of the ribs is provided with a wire limiting groove, the inner end of the wire limiting groove extends to the stator assembly mounting plate and is communicated with a wire hole in the stator assembly mounting plate, and the outer end of the wire limiting groove extends to the edge of the shell and is communicated with the wire hole in the stator assembly mounting plate. Forming a notch; a wire connected with the stator assembly is led out from the wire hole, enters the wire limiting groove, passes through the air inlet and is led out from the notch. The wire limiting groove is directly formed in the rib, and the wire embedded in the wire limiting groove cannot enter the air inlet of the axial flow fan to interfere with the rotor assembly.

Description

Technical Field

[0001] The utility model relates to the field of electronic and electrical products, in particular to a radiator. Background Art

[0002] Cooling fans are widely used in home appliances, automobiles, security, communications, medical treatment, industrial control, electricity, printing, military industry, welding machines, instruments and meters, computers, power supplies and other fields.

[0003] The cooling fan mainly includes a shell, a stator assembly and a rotor assembly (fan wheel assembly). The shell is formed with a hollow cavity, an air inlet and an air outlet connecting the hollow cavity and the outside. The stator assembly is fixedly assembled in the cavity. The rotor assembly is rotatably assembled in the cavity and is electromagnetically coupled with the stator assembly. The winding of the stator assembly needs to be energized to generate electromagnetic force to drive the rotor assembly to rotate. The stator assembly is located at the center of the cooling fan, and an air flow channel is provided around it. The wires connected to the stator assembly need to be led to the periphery of the cooling fan through the air flow channel and connected to the power supply components. Utility Model Content

[0004] The technical problem solved by the utility model is that a wire limiting structure is arranged between the stator assembly and the periphery of the cooling fan to prevent the wire from entering the air flow channel of the cooling fan and interfering with the rotor assembly.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: an AC axial flow fan, comprising a shell, a stator assembly and a rotor assembly, the shell forming a hollow cavity, an air inlet and an air outlet connecting the hollow cavity and the outside, the air inlet and the air outlet are arranged correspondingly in front and behind, a stator assembly mounting plate is provided at the center of the air inlet, the stator assembly mounting plate is connected to the shell body through a plurality of ribs, the stator assembly is fixedly assembled on the stator assembly mounting plate and is located in the cavity, the rotor assembly is rotatably assembled in the cavity and is electromagnetically coupled with the stator assembly, a wire limiting groove is provided on one of the plurality of ribs, the inner end of the wire limiting groove extends to the stator assembly mounting plate and is connected to the wire hole on the stator assembly mounting plate, and the outer end of the wire limiting groove extends to the edge of the shell to form a notch.

[0006] The wire connected to the stator assembly is led out from the wire hole, enters the wire limiting groove, passes through the air inlet, and is led out from the notch. Since the wire limiting groove is directly opened on the rib, the wire embedded in the wire limiting groove will not enter the air inlet of the axial flow fan and interfere with the rotor assembly.

[0007] The outer wall of the shell is provided with a side plate, and the side plate and the outer wall of the shell form a groove structure, and the notch is connected to the groove structure. The wires led out of the notch can be hidden in the groove structure and then led to the power supply device in a specific direction. In this way, the wires are neat and orderly to avoid clutter.

[0008] The shell is circular, the side plate is elliptical as a whole, and connection holes are set at both ends of the long axis of the ellipse. The side plate has a reinforcing effect on the structural stability of the shell. Furthermore, the side plate is elliptical as a whole, and connection holes are set at both ends of the long axis of the ellipse. The connecting pieces matched in the connection holes fix the shell in the installation position. In this way, when subjected to external force, the shell has good anti-deformation ability, providing guarantee for the normal operation of the axial flow fan.

[0009] Lugs are provided at both ends of the elliptical major axis, and connecting holes are provided on the lugs. Thus, the connecting piece fitted in the connecting hole passes through the groove structure, and there is a gap between the connecting piece and the outer side wall of the shell, and the gap can accommodate the wire. Thus, the connecting piece can limit the wire in the groove structure.

[0010] Reinforcement structures are provided at both ends of the elliptical short axis to improve the shell's ability to resist deformation and provide protection for the normal operation of the axial flow fan.

[0011] A wire plate is provided on one side of the reinforcement structure close to the notch, and a wire clamping groove is formed between the wire plate and the side plate. The wire led out of the notch can directly enter the groove structure connected to the notch. If the wire needs to pass through the reinforcement structure, the wire is first clamped in the wire clamping groove, and then passes over the reinforcement structure and enters the groove structure on the other side of the reinforcement structure. In this way, the wire is conducive to orderly winding around the periphery of the shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The utility model is further described below in conjunction with the accompanying drawings:

[0013] Figure 1 is a schematic diagram of an AC axial flow fan;

[0014] Figure 2 for Figure 1 A top view of

[0015] Figure 3 A schematic diagram of an AC axial fan from another perspective.

[0016] Explanation of symbols in the figure:

[0017] 10. Shell; 101. Air inlet; 102. Air outlet; 11. Side plate; 12. Groove structure; 13. Connection hole; 14. Lug; 15. Reinforcement structure; 16. Wire board; 17. Wire slot;

[0018] 20. Stator assembly mounting plate; 21. Wire hole;

[0019] 30. Rib; 31. Wire limiting groove; 32. Notch. DETAILED DESCRIPTION

[0020] refer to Figures 1 to 3 An AC axial flow fan includes a shell 10, a stator assembly and a rotor assembly. The shell is formed with a hollow cavity, an air inlet 101 and an air outlet 102 connecting the hollow cavity and the outside. The air inlet and the air outlet are arranged correspondingly in front and back. A stator assembly mounting plate 20 is provided at the center of the air inlet. The stator assembly mounting plate is connected to the shell body through a plurality of ribs 30. The stator assembly is fixedly assembled on the stator assembly mounting plate and is located in the cavity. The rotor assembly is rotatably assembled in the cavity and is electromagnetically coupled with the stator assembly.

[0021] A wire limiting groove 31 is provided on one of the plurality of ribs 30 , the inner end of the wire limiting groove extends to the stator assembly mounting plate 20 and communicates with the wire hole 21 on the stator assembly mounting plate, and the outer end of the wire limiting groove extends to the edge of the shell to form a notch 32 .

[0022] The wire connected to the stator assembly is led out from the wire hole 21, enters the wire limiting groove 31, passes through the air inlet 101, and is led out from the notch 32. Since the wire limiting groove 31 is directly opened on the rib 30, the wire embedded in the wire limiting groove will not enter the air inlet 101 of the axial flow fan and interfere with the rotor assembly.

[0023] The outer wall of the housing 10 is provided with a side plate 11, and the side plate and the outer wall of the housing form a groove structure 12, and the notch 32 is connected to the groove structure. The wires led out of the notch 32 can be hidden in the groove structure 12 and then led to a power supply device in a specific direction. In this way, the wires are neat and orderly to avoid clutter.

[0024] The housing 10 is circular, the side plate 11 is elliptical as a whole, and connecting holes 13 are set at both ends of the long axis of the ellipse. The side plate 11 has a reinforcing effect on the structural stability of the housing 10. Furthermore, the side plate 11 is elliptical as a whole, and connecting holes 13 are set at both ends of the long axis of the ellipse. The connecting pieces matched in the connecting holes fix the housing 10 in the installation position. In this way, when subjected to external force, the housing 10 has good anti-deformation ability, providing guarantee for the normal operation of the axial flow fan.

[0025] Lugs 14 are provided at both ends of the elliptical major axis, and the connecting holes 13 are provided on the lugs. In this way, the connecting piece fitted in the connecting hole 13 passes through the groove structure 12, and there is a gap between the connecting piece and the outer wall of the housing 10, and the gap can accommodate the wire. In this way, the connecting piece can limit the wire in the groove structure 12.

[0026] Reinforcement structures 15 are provided at both ends of the elliptical short axis to improve the anti-deformation capability of the housing 10 and provide protection for the normal operation of the axial flow fan.

[0027] A wire plate 16 is provided on one side of the reinforcement structure 15 close to the notch 32, and a wire clamping groove 17 is formed between the wire plate and the side plate 11. The wires led out of the notch 32 can directly enter the groove structure 12 connected to the notch. If the wires need to pass through the reinforcement structure 15, the wires are first clamped in the wire clamping groove 17, and then pass over the reinforcement structure 15 and enter the groove structure 12 on the other side of the reinforcement structure. In this way, the wires are wound around the outer periphery of the housing 10 in an orderly manner.

[0028] The above contents are only preferred implementation modes of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there may be changes in the specific implementation mode and application scope. The content of this specification should not be understood as limiting the present invention.

Claims

1. An AC axial flow fan, comprising a housing (10), a stator assembly and a rotor assembly, wherein the housing is formed with a hollow cavity, an air inlet (101) and an air outlet (102) communicating with the hollow cavity and the outside, the air inlet and the air outlet are arranged in front and back correspondence, a stator assembly mounting plate (20) is arranged at the center of the air inlet, the stator assembly mounting plate is connected to the housing body through a plurality of ribs (30), the stator assembly is fixedly assembled on the stator assembly mounting plate and is located in the cavity, the rotor assembly is rotatably assembled in the cavity and is electromagnetically coupled with the stator assembly, and is characterized in that: A wire limiting groove (31) is provided on one of the plurality of ribs (30), the inner end of the wire limiting groove extends to the stator assembly mounting plate (20) and is communicated with the wire hole (21) on the stator assembly mounting plate, and the outer end of the wire limiting groove extends to the edge of the shell to form a notch (32).

2. The AC axial flow fan according to claim 1, wherein: A side plate (11) is provided on the outer side wall of the shell (10), and the side plate and the outer side wall of the shell form a groove structure (12), and the notch (32) is connected to the groove structure.

3. The AC axial flow fan according to claim 2, wherein: The shell (10) is circular, the side plate (11) is elliptical as a whole, and connecting holes (13) are arranged at both ends of the long axis of the ellipse.

4. The AC axial flow fan according to claim 3, wherein: Lugs (14) are provided at both ends of the elliptical major axis, and connecting holes (13) are arranged on the lugs.

5. The AC axial flow fan according to claim 3, wherein: Reinforcement structures (15) are arranged at both ends of the elliptical minor axis.

6. The AC axial flow fan according to claim 5, wherein: A wire guide plate (16) is provided on one side of the reinforcing structure (15) close to the notch (32), and a wire clamping groove (17) is formed between the wire guide plate and the side plate (11).

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