Self-cleaning dust removal and heat dissipation motor

Abstract

The utility model discloses a self-cleaning dust removal and heat dissipation motor, which comprises a shell, a rotating shaft, a stator, a rotor, a front end cover, a rear end cover, a two-stage centrifugal impeller assembly and a centrifugal dust removal assembly, a heat dissipation air duct is arranged in the shell, the tail end of the heat dissipation air duct is communicated with the centrifugal dust removal assembly, and the front end cover is provided with an air duct inlet communicated with the front end of the heat dissipation air duct. The centrifugal dust removal assembly comprises a dust collection groove, the dust collection groove is communicated with the air duct outlet, at least one dust discharge hole is formed in the dust collection groove, the two-stage centrifugal impeller assembly is axially matched with the rotating shaft and comprises axial wind power fan blades and circumferential centrifugal fan blades, and the motor can clean and store dust in the motor on the basis of ensuring heat dissipation.

Description

Technical Field

[0001] This utility model relates to the field of motors, specifically a self-cleaning, dust-removing, and heat-dissipating motor. Background Technology

[0002] In traditional motors, dust easily accumulates in the cooling ducts during operation, leading to decreased heat dissipation efficiency and even overheating damage. Current technologies typically employ external filters or periodic manual cleaning, but these methods suffer from filter clogging and high maintenance costs. Furthermore, a single cooling duct design struggles to balance heat dissipation efficiency with dust prevention. Therefore, there is an urgent need for a motor structure that integrates self-cleaning, dust removal, and efficient heat dissipation. Utility Model Content

[0003] The purpose of this invention is to overcome the defects in the existing technology and provide a motor that significantly improves heat dissipation performance and reduces dust accumulation in the heat dissipation duct through the synergistic effect of the spiral air duct and centrifugal impeller, combined with a self-cleaning dust storage structure. This motor is suitable for high dust environments and has both high efficiency and low maintenance requirements.

[0004] To achieve the above objectives, the technical solution of this utility model is to design a self-cleaning dust removal and heat dissipation motor, including a housing, a rotating shaft, a stator, a rotor, a front end cover, a rear end cover, a two-stage centrifugal impeller assembly, and a centrifugal dust removal assembly. The housing has a heat dissipation air duct, the outlet end of which is connected to the centrifugal dust removal assembly, and the inlet end of which is connected to the air duct inlet opened on the front end cover. The centrifugal dust removal assembly includes a dust collection tank, which is connected to the air duct outlet. The dust collection tank has at least one dust discharge hole. The two-stage centrifugal impeller assembly is axially matched with the rotating shaft and includes axial fan blades and circumferential centrifugal fan blades.

[0005] Preferably, the heat dissipation duct is a spiral flow guide structure, with the flow direction consistent with the motor rotation direction, which can reduce airflow resistance and extend the heat exchange path, thereby improving heat dissipation efficiency.

[0006] Optionally, the centrifugal dust removal assembly is located near the end of the housing.

[0007] Optionally, the centrifugal dust removal component is located near the front end of the rear end cover.

[0008] Optionally, the ash discharge hole is connected to a dust storage bin.

[0009] Furthermore, the dust storage bin is L-shaped, with a one-way opening and closing baffle at the turning point. The baffle only opens and closes inward, forming a one-way valve-type dust storage bin to prevent internal dust from flowing back into the motor when the motor starts up and before a pressure difference is formed.

[0010] Optionally, a filter screen is placed at the air duct inlet to prevent flying insects or larger dust particles from entering.

[0011] Optionally, a diffusion guide grid is provided at the end of the rear cover.

[0012] Optionally, the outer surface of the housing is provided with axial heat dissipation fins to further improve the heat dissipation effect.

[0013] The advantages and beneficial effects of this invention are as follows: The motor uses a two-stage centrifugal impeller assembly axially coupled with the rotating shaft. The axial fan blades provide axial airflow for overall motor cooling, while the circumferential centrifugal fan blades provide circumferential centrifugal force, throwing dust inside the motor into the dust collection tank. The dust falls along the inner wall of the collection tank and is discharged through the dust discharge hole or stored in the dust storage bin, effectively cleaning the motor. Therefore, this motor can achieve self-cleaning and self-dust storage while efficiently dissipating heat. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the motor structure of this utility model;

[0015] Figure 2 This is a cross-sectional view of the centrifugal dust removal component of this utility model inside the housing;

[0016] Figure 3 This is a cross-sectional view of the centrifugal dust removal component of this utility model inside the rear end cover;

[0017] Figure 4 This is a schematic diagram of the centrifugal dust removal component of this utility model when it is inside the rear end cover;

[0018] Figure 5 This is a schematic diagram of the spiral flow guiding structure air duct of this utility model;

[0019] Figure 6 This is a schematic diagram of the two-stage centrifugal impeller assembly of this utility model;

[0020] Figure 7 This is a schematic diagram of the L-shaped dust storage bin structure of this utility model;

[0021] Figure 8 This is a schematic diagram of the diffusion guide grid structure of this utility model.

[0022] In the diagram: 1. Housing; 11. Heat dissipation duct; 2. Shaft; 3. Stator; 4. Rotor; 5. Front cover; 51. Air duct inlet; 52. Filter screen; 6. Rear cover; 61. Diffusion guide grille; 7. Two-stage centrifugal impeller assembly; 71. Axial fan blade; 72. Circumferential centrifugal fan blade; 8. Centrifugal dust removal assembly; 81. Dust collection tank; 82. Dust discharge hole; 83. Dust storage bin; 84. Baffle; 9. Heat dissipation fins. Detailed Implementation

[0023] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solution of this utility model and should not be construed as limiting the scope of protection of this utility model.

[0024] This utility model is a self-cleaning dust removal and heat dissipation motor, including a housing 1, a rotating shaft 2, a stator 3, a rotor 4, a front cover 5, a rear cover 6, a two-stage centrifugal impeller assembly 7, and a centrifugal dust removal assembly 8. The housing 1 has a heat dissipation duct 11, the outlet end of which is connected to the centrifugal dust removal assembly 8, and the inlet end of which is connected to the air duct inlet 51 opened in the front cover 5. The centrifugal dust removal assembly 8 includes a dust collection groove 81, which is connected to the outlet end of the heat dissipation duct 11. The dust collection groove 81 has at least one dust discharge hole 82. The two-stage centrifugal impeller assembly 7 is axially coupled to the rotating shaft 2 and includes an axial wind fan blade 71 and a circumferential centrifugal fan blade 72.

[0025] During operation, the motor starts, driving the two-stage centrifugal impeller assembly 7 to rotate. At this time, a pressure difference is formed between the front end of the motor and the inside of the motor. Figure 2 As shown, when the centrifugal dust collector assembly 8 is near the end of the housing 1, air enters through the air duct inlet 51 of the front cover 5, passes through the heat dissipation air duct 11 inside the housing 1, and after passing through the dust collection tank 81, the axial wind-powered fan blades 71 of the double-stage centrifugal impeller assembly 7 discharge it from the rear cover 6. This process absorbs a large amount of heat from inside the motor, thus achieving a heat dissipation effect. When the air reaches the dust collection tank 81, the dust inside will be subjected to the centrifugal force generated by the circumferential centrifugal fan blades 72 of the double-stage centrifugal impeller assembly 7, thus falling into the dust collection tank 81. The dust slides down the inner wall of the dust collection tank 81 and is discharged from the motor through the dust discharge hole 82. When the dust discharge hole 82 is connected to the dust storage bin 83, the dust will be collected in the dust storage bin 83, and workers can clean it once every once in a while. Figure 3 , Figure 4 As shown, the centrifugal dust removal component 8 is located near the front end of the rear end cover 6. At this time, air enters from the air duct inlet 51 opened in the front end cover 5, passes through the heat dissipation air duct 11 in the housing 1, and reaches the dust collection tank 81 in the rear end cover 6. The remaining working principle is the same as the previous embodiment, and will not be described again here.

[0026] like Figure 5 As shown, the heat dissipation duct 11 is preferably a spiral guide structure, and the guide direction is consistent with the rotation direction of the motor. When air enters from the air duct inlet 51 opened in the front cover 5 and passes through the heat dissipation duct 11 in the housing 1, it will increase the contact area with the housing 1, thereby improving the heat dissipation efficiency. The guide direction of the spiral guide structure is consistent with the rotation direction of the motor rotor 4, so that the tangential velocity of the airflow is the same as the movement direction of the rotor 4 surface, forming a synergistic flow to enhance the heat exchange efficiency.

[0027] like Figure 7As shown, the dust storage bin 83 is L-shaped, with a one-way opening and closing baffle 84 at the turning point. The baffle 84 only opens and closes inward, forming a one-way valve type dust storage bin 83, which prevents internal dust from flowing back into the motor when the motor starts and before a pressure difference is formed.

[0028] like Figure 2 , Figure 3 As shown, a filter screen 52 is placed at the air duct inlet 51, which can effectively prevent flying insects and large particles of impurities from entering the heat dissipation air duct 11 and causing damage to the internal parts.

[0029] like Figure 8 As shown, a diffusion guide grille 61 is provided at the end of the rear cover 6 to reduce the amount of external dust entering the motor through the rear cover 6.

[0030] like Figure 1 As shown, the outer surface of the housing 1 is provided with axial heat dissipation fins 9 to improve the overall heat dissipation efficiency of the motor.

[0031] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A self-cleaning, dust-removing, and heat-dissipating motor, comprising a housing (1), a shaft (2), a stator (3), a rotor (4), a front end cover (5), a rear end cover (6), a two-stage centrifugal impeller assembly (7), and a centrifugal dust removal assembly (8). Its features are, The housing (1) contains a heat dissipation duct (11), the outlet end of which is connected to the centrifugal dust removal assembly (8), and the inlet end of which is connected to the air duct inlet (51) opened on the front cover (5). The centrifugal dust removal assembly (8) includes a dust collection tank (81), which is connected to the outlet end of the heat dissipation duct (11). The dust collection tank (81) has at least one dust discharge hole (82). The dual-stage centrifugal impeller assembly (7) is axially coupled to the shaft (2) and includes an axial wind turbine blade (71) and a circumferential centrifugal blade (72).

2. The self-cleaning, dust-removing, and heat-dissipating motor according to claim 1, characterized in that, The heat dissipation duct (11) is a spiral flow guiding structure, and the flow guiding direction is consistent with the motor rotation direction.

3. The self-cleaning, dust-removing, and heat-dissipating motor according to claim 1, characterized in that, The centrifugal dust removal assembly (8) is located near the end of the housing (1).

4. The self-cleaning, dust-removing, and heat-dissipating motor according to claim 1, characterized in that, The centrifugal dust removal component (8) is located near the front end of the rear cover (6).

5. A self-cleaning, dust-removing, and heat-dissipating motor according to any one of claims 1 to 4, characterized in that, The ash discharge hole (82) is connected to a dust storage bin (83).

6. The self-cleaning, dust-removing, and heat-dissipating motor according to claim 5, characterized in that, The dust storage bin (83) is L-shaped, with a one-way opening baffle (84) at the turning point. The baffle (84) only opens and closes inward.

7. The self-cleaning, dust-removing, and heat-dissipating motor according to claim 1, characterized in that, A filter screen (52) is placed at the air duct inlet (51).

8. The self-cleaning, dust-removing, and heat-dissipating motor according to claim 1, characterized in that, A diffusion guide grille (61) is provided at the end of the rear cover (6).

9. The self-cleaning, dust-removing, and heat-dissipating motor according to claim 1, characterized in that, The outer surface of the housing (1) is provided with axial heat dissipation fins (9).

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