A stator dust cap

Abstract

The utility model discloses a kind of stator dust caps, it includes dust cap main part, the side surface of this dust cap main part is equipped with several filter screen clamping grooves, several the filter screen clamping grooves are evenly distributed on the side wall of this dust cap main part in annular array, several the filter screen clamping grooves are respectively clamped with miniature filter screen plate, the surface of several the miniature filter screen plate is equipped with filter screen face, the surface of this filter screen face is evenly equipped with several filter openings. The utility model is by being set on the stator dust cap main part annular filter screen clamping groove and clamping miniature filter screen plate, realize the dual function of air circulation and dust barrier;Through the sliding clamping structure of connecting opening and connecting clamping block and connecting clamping slot, realize the quick assembly of miniature filter screen plate, stable positioning and detachable maintenance.

Description

Technical Field

[0001] This utility model belongs to the technical field of stator components, specifically relating to a stator dust cap. Background Technology

[0002] As a crucial power device widely used in modern industrial and household appliances, the performance of the stator directly affects the motor's efficiency and lifespan. During operation, the stator is susceptible to the intrusion of dust, particulate matter, moisture, and oil. Once these impurities enter the stator, they adhere to the surfaces of the windings and insulation, leading to decreased insulation performance and potentially causing short circuits, winding damage, and reduced motor efficiency. In severe cases, they can even shorten the motor's lifespan. Therefore, to protect the internal structure of the stator, dustproof devices are typically installed on its exterior.

[0003] Existing stator dustproof devices mostly adopt an integral cover structure or only a single air filter layer on the cover. However, they have shortcomings. A single dustproof structure often cannot effectively achieve a balance between airflow and dust blockage. When airflow is obstructed, the stator temperature may rise, affecting the motor's heat dissipation efficiency.

[0004] Therefore, overcoming the shortcomings of the existing technology is an urgent problem to be solved in this technical field. Utility Model Content

[0005] In view of the technical problems mentioned in the background art, the purpose of this utility model is to provide a stator dust cap to solve the technical problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a stator dust cap, comprising a dust cap body, wherein a plurality of filter slots are provided on the side of the dust cap body, the plurality of filter slots are evenly distributed in a ring array on the side wall of the dust cap body, a miniature filter plate is respectively installed in the plurality of filter slots, and a filter surface is provided on the surface of the plurality of miniature filter plates, and a plurality of filter openings are evenly provided on the surface of the filter surface.

[0007] Furthermore, each of the filter slots has a connection opening at its top, and each of the filter slots has a symmetrically recessed connection slot on both sides. Each of the micro filter plates has a symmetrically protruding connection block on both sides that matches the connection slot. The micro filter plate is fitted into the filter slot through the connection opening, and at the same time, the two connection blocks are slidably engaged and fixed in the two connection slots.

[0008] Furthermore, a dust cap opening is provided in the upper middle part of the main body of the dust cap, and a sealing ring is installed in the dust cap opening.

[0009] Furthermore, the sealing ring is made of silicone material.

[0010] Furthermore, the bottom edge of the dust cap body is provided with a connecting protrusion ring, which is circular in shape. The edge of the connecting protrusion ring is recessed with several buckle mounting positions, which are evenly distributed in a ring array on the edge of the connecting protrusion ring.

[0011] Furthermore, the upper end of the connecting protrusion ring is provided with a retaining ring connecting part, and the upper side of the retaining ring connecting part is provided with a circular retaining ring abutment part. An anti-loosening retaining ring is sleeved on the outer side of the retaining ring connecting part, and the anti-loosening retaining ring is made of metal material.

[0012] Furthermore, the lower surface of the connecting protrusion is recessed with an annular washer groove, in which a buffer washer is embedded.

[0013] Furthermore, the buffer gasket is made of rubber.

[0014] Furthermore, the inner side of the dust cap body is provided with several reinforcing ribs, which are evenly distributed in a circular array on the inner side of the dust cap body.

[0015] Furthermore, the main body of the dust cap is an injection-molded one-piece structure.

[0016] This utility model has the following advantages: It achieves dual functions of air circulation and dust blocking by setting an annular filter slot on the main body of the stator dust cap and mounting a micro-filter plate; the sliding engagement structure of the connecting opening and connecting block with the connecting slot enables rapid assembly, stable positioning, and detachable maintenance of the micro-filter plate; the annular seal formed by the top dust cap opening and the sealing ring effectively prevents dust, moisture, and oil from entering the stator; the injection-molded dust cap structure enhances overall strength and sealing performance; the combination of the bottom connecting protrusion, snap-fit ​​mounting position, snap ring connection, anti-loosening snap ring, and lower surface buffer gasket ensures stable installation, anti-loosening, shock absorption, and noise reduction of the dust cap and stator end cover; and the inner reinforcing ribs enhance the structural rigidity and reliability of the dust cap. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model.

[0018] Figure 2 This is a schematic diagram of the overall exploded structure of this utility model.

[0019] Figure 3 This is a schematic diagram of the main structure of the dust cap of this utility model.

[0020] Reference numerals: Dust cap body 10; Filter slot 11; Miniature filter plate 12; Filter surface 121; Filter opening 122; Connection opening 111; Connection slot 112; Connection block 123; Dust cap opening 13; Sealing ring 14; Connection protrusion ring 15; Buckle mounting position 151; Ring connection part 16; Ring abutment part 161; Anti-loosening ring 17; Washer groove 152; Buffer washer 18; Reinforcing rib 19. Detailed Implementation

[0021] like Figures 1 to 3 As shown, a stator dust cap includes a dust cap body 10. The side of the dust cap body 10 has several filter slots 11, which are evenly distributed in a circular array on the side wall of the dust cap body 10. Each of the filter slots 11 holds a miniature filter plate 12. The surface of each miniature filter plate 12 is provided with a filter mesh surface 121, and the surface of the filter mesh surface 121 is evenly provided with several filter openings 122, serving the dual function of airflow and dust blocking. In use, when air convection occurs during motor operation or external dust particles approach the stator, air can enter the dust cap body 10 through the filter openings 122, while dust and larger particles are blocked by the filter mesh surface 121, effectively preventing dust from entering the stator and thus protecting the stator windings and insulation layer, extending the motor's service life.

[0022] In practical implementation, each of the filter slots 11 has a connection opening 111 at its top, and each of the filter slots 11 has a symmetrically recessed connection slot 112 on both sides. Each of the miniature filter plates 12 has a symmetrically protruding connection block 123 on both sides that matches the connection slot 112. The miniature filter plate 12 is fitted into the filter slot 11 through the connection opening 111. Simultaneously, two connection blocks 123 are slidably engaged in two connection slots 112 for fixation. This structural design allows for quick assembly and stable positioning of the miniature filter plate 12, eliminating the need for additional fasteners. The structure is compact and easy to assemble and disassemble. When cleaning or replacing the filter, the operator simply pulls the miniature filter plate 12 outwards along the direction of the connection opening 111, simplifying maintenance and ensuring good reusability.

[0023] In practical implementation, the dust cap body 10 has a dust cap opening 13 in the upper middle part, and a sealing ring 14 is fitted into the dust cap opening 13. The sealing ring 14 is made of silicone material and has good elasticity, high temperature resistance and aging resistance. When the dust cap body 10 is installed on the outside of the stator, the sealing ring 14 abuts against the stator end cover to form a ring-shaped sealing structure, thereby effectively preventing dust, moisture and oil from seeping into the stator through the gap at the top of the dust cap.

[0024] In practice, the dust cap body 10 is an injection molded one-piece structure, which is prepared by molding in one step. The overall structure has high strength and good sealing performance, which can effectively prevent dust, moisture or other impurities from entering the stator.

[0025] In practical implementation, the bottom edge of the dust cap body 10 is provided with a connecting protrusion ring 15. This connecting protrusion ring 15 is circular in shape and is used to mate with the mounting opening of the stator housing to achieve a secure installation of the dust cap. The edge of the connecting protrusion ring 15 is recessed with several snap-fit ​​mounting positions 151, which are evenly distributed in a circular array along the edge of the connecting protrusion ring 15 for installing dust cap snap-fit ​​components. Through the interaction of the snap-fit ​​mounting positions 151 with the corresponding snap-fit ​​components, the dust cap body 10 can be quickly installed or removed, facilitating later maintenance and replacement. This structural design not only improves assembly efficiency but also ensures the stability and sealing of the dust cap during operation, effectively preventing external dust from entering the stator.

[0026] In practical implementation, the upper end of the connecting protruding ring 15 is provided with a retaining ring connecting part 16. A circular retaining ring abutment part 161 protrudes from the upper side of the retaining ring connecting part 16. An anti-loosening retaining ring 17 is sleeved on the outer side of the retaining ring connecting part 16. The anti-loosening retaining ring 17 is made of a metal material with a certain degree of elasticity. Through elastic clamping force, it cooperates with the retaining ring abutment part 161 to achieve a tight fixation. This structure ensures that the dust cap will not loosen, shift, or fall off under long-term operation or vibration conditions, thereby improving the overall assembly's firmness and safety, and effectively extending the service life of the dust cap.

[0027] In practical implementation, the lower surface of the connecting convex ring 15 is recessed with an annular washer groove 152, in which a buffer washer 18 is embedded. The buffer washer 18 is made of highly elastic rubber material, possessing excellent flexibility and resilience. When the dust cap body 10 is installed on the stator assembly, the buffer washer 18 forms an effective sealing contact surface between the connecting convex ring 15 and the stator surface, preventing dust, moisture, or oil from entering the stator. Simultaneously, the buffer washer 18 absorbs vibration and impact during equipment operation, providing shock absorption and noise reduction, thereby effectively improving the stability and sealing reliability of the dust cap under high speed or complex operating conditions, and extending the service life of the stator assembly and the dust cap.

[0028] In practical implementation, the inner surface of the dust cap body 10 is provided with several reinforcing ribs 19, which are evenly distributed in a circular array on the inner surface of the dust cap body 10. These reinforcing ribs 19 enhance the overall rigidity and structural stability of the dust cap body 10, preventing deformation or collapse under long-term motor operation or high-frequency vibration conditions. The evenly distributed circular arrangement effectively disperses external forces and internal stresses, improving the reliability of the dust cap under conditions such as installation, vibration, and thermal expansion.

[0029] In summary, this utility model achieves the dual functions of air circulation and dust blocking by setting an annular filter slot 11 on the stator dust cap body 10 and mounting a micro filter plate 12; the micro filter plate 12 is quickly assembled, stably positioned, and disassembled for maintenance by the sliding engagement structure of the connecting opening 111 and the connecting block 123 with the connecting slot 112; the annular seal formed by the top dust cap opening 13 and the sealing ring 14 effectively blocks dust, moisture, and oil from entering the stator; the overall strength and sealing performance are improved by the injection-molded dust cap body 10 structure; the combination of the bottom connecting protrusion 15, the snap mounting position 151, the snap ring connecting part 16, the anti-loosening snap ring 17, and the lower surface buffer washer 18 achieves the functions of stable installation, anti-loosening, shock absorption, and noise reduction of the dust cap and the stator end cover; and the structural rigidity and reliability of the dust cap are enhanced by the inner reinforcing rib 19.

Claims

1. A stator dust cap, characterized in that, It includes a dust cap body (10), on which a plurality of filter slots (11) are provided on the side. The plurality of filter slots (11) are evenly distributed in a ring array on the side wall of the dust cap body (10). Each of the plurality of filter slots (11) is fitted with a micro filter plate (12). The surface of each of the plurality of micro filter plates (12) is provided with a filter surface (121). The surface of the filter surface (121) is evenly provided with a plurality of filter openings (122).

2. The stator dust cap according to claim 1, characterized in that, A connection opening (111) is provided on the top of each of the filter slots (11), and a connection slot (112) is symmetrically recessed on both sides of each of the filter slots (11). A connection block (123) adapted to the connection slot (112) is symmetrically protruded on both sides of each of the miniature filter plates (12). The miniature filter plate (12) is fitted into the filter slot (11) through the connection opening (111), and at the same time, the two connection blocks (123) are slidably engaged and fixed in the two connection slots (112).

3. The stator dust cap according to claim 1, characterized in that, The dust cap body (10) has a dust cap opening (13) in the upper middle part, and a sealing ring (14) is installed in the dust cap opening (13).

4. The stator dust cap according to claim 3, characterized in that, The sealing ring (14) is made of silicone material.

5. The stator dust cap according to claim 1, characterized in that, The bottom edge of the dust cap body (10) is provided with a connecting protrusion ring (15), which is circular in shape. The edge of the connecting protrusion ring (15) is recessed with a number of snap-fit ​​mounting positions (151), which are evenly distributed in a ring array on the edge of the connecting protrusion ring (15).

6. The stator dust cap according to claim 5, characterized in that, The upper end of the connecting protrusion (15) is provided with a retaining ring connection part (16), and the upper side of the retaining ring connection part (16) is provided with a circular retaining ring abutment part (161). The outer side of the retaining ring connection part (16) is fitted with an anti-loosening retaining ring (17), which is made of metal material.

7. The stator dust cap according to claim 6, characterized in that, The lower surface of the connecting protrusion (15) is recessed with an annular washer groove (152), in which a buffer washer (18) is embedded.

8. The stator dust cap according to claim 7, characterized in that, The buffer gasket (18) is made of rubber.

9. The stator dust cap according to claim 1, characterized in that, The inner side of the dust cap body (10) is provided with a number of reinforcing ribs (19), and the number of reinforcing ribs (19) are evenly distributed in a circular array on the inner side of the dust cap body (10).

10. The stator dust cap according to claim 1, characterized in that, The main body (10) of the dust cap is an injection molded one-piece structure.

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