Waterproof and dustproof motor stator

Abstract

The utility model provides a waterproof and dustproof motor stator, and belongs to the technical field of motors. The motor stator solves the problem that a motor stator in the prior art is not ideal in waterproof or dustproof effect. The motor comprises a plastic package shell, a stator support and a stator core, the plastic package shell comprises a sealing plate and a cylindrical shell, the diameter of the sealing plate is larger than that of the cylindrical shell, the plastic package shell is a sealed hollow shell, the sealing plate and the cylindrical shell are mutually communicated and sealed, the center of the plastic package shell is provided with a through hole, the through hole penetrates through the sealing plate and the cylindrical shell, and the through hole is communicated with the cylindrical shell. A first limiting groove and a second limiting groove are formed in the through hole, the stator iron core is fixedly installed between the first limiting groove and the second limiting groove, the stator support is connected with the stator iron core, the stator support and the stator iron core are installed in the plastic package shell, and sealing shaft barrels extend out of the two ends of the stator support. The sealing shaft barrels are in sealing connection with the two ends of the through hole respectively. The utility model has the advantage of strong waterproof and dustproof capability.

Description

Technical Field

[0001] The utility model belongs to the technical field of motors and relates to a waterproof and dustproof motor stator. Background Art

[0002] The motor stator consists of three parts: the stator core, the stator winding and the frame. The main function of the stator is to generate a rotating magnetic field.

[0003] Chinese patent publication number CN204030746U discloses a stator for a motor, including a stator body, a stator core arranged in the stator body, a waterproof sleeve arranged on the outer surface of the stator body, and a mounting hole arranged on the stator body. The stator core is formed by stacking and matching multiple pole irons, and winding posts are provided on the pole irons. A winding slot is formed between two adjacent winding posts. Multiple inner slots are evenly distributed along the circumference on the inner ring of the stator core. The mounting hole is installed on the stator body and passes through the stator core. Coils are wound on the winding posts formed by stacking and matching pole irons. There are multiple stator cores, which are evenly distributed in a ring shape in the stator body. The cross-sectional area of ​​each pole iron is the same. The waterproof sleeve is interference fit with the outer surface of the stator body. There are four mounting holes and they are evenly distributed in a ring shape on the stator body.

[0004] The patent provides a motor stator in which only a waterproof cover is provided on the outside to provide a waterproof effect, but the effect of preventing dust from entering is not very good. Utility Model Content

[0005] The purpose of the utility model is to provide a waterproof and dustproof motor stator in view of the above problems existing in the prior art.

[0006] The purpose of the utility model can be achieved through the following technical solutions: A waterproof and dustproof motor stator, including a plastic-sealed shell, a stator bracket and a stator core, the plastic-sealed shell including a sealing plate and a cylindrical shell, the diameter of the sealing plate is larger than that of the cylindrical shell, the plastic-sealed shell is a sealed hollow shell, the sealing plate and the cylindrical shell are interconnected and sealed, a through hole is opened in the center of the plastic-sealed shell and the through hole passes through the sealing plate and the cylindrical shell, a first limiting groove and a second limiting groove are formed inside the through hole, the stator core is fixedly installed between the first limiting groove and the second limiting groove, the stator bracket and the stator core are connected to each other, the stator bracket and the stator core are installed inside the plastic-sealed shell, and sealing shaft cylinders extend from both ends of the stator bracket, and the sealing shaft cylinders are respectively sealed and connected to the two ends of the through hole.

[0007] In the above-mentioned waterproof and dustproof motor stator, a plurality of connecting protrusions are integrally formed on the sealing plate, fastening bolts are fixed inside the connecting protrusions, and reinforcing blocks are formed at the ends of the connecting protrusions.

[0008] In the above-mentioned waterproof and dustproof motor stator, a plurality of reinforcing ribs are formed on the outer side surface of the sealing plate.

[0009] In the above-mentioned waterproof and dustproof motor stator, the first limiting groove and the second limiting groove are respectively provided with a first key groove and a second key groove, and the inside of the stator core is provided with a third key groove, and the third key groove is fitted with the first key groove and the second key groove.

[0010] Compared with the existing technology, the waterproof and dustproof motor stator provided by the utility model has the following beneficial effects: through the structural setting of the overall plastic sealing process of the plastic sealing shell, the sealing plate and the cylindrical shell are completely sealed, and the connection and seal are fastened by the connecting protrusion, thereby ensuring the internal sealing of the utility model, completely wrapping the entire stator bracket and the stator core, and greatly enhancing the waterproof and dustproof capabilities. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0012] Figure 2 This is a schematic diagram of the explosion structure of the utility model;

[0013] Figure 3 It is a schematic diagram of the plastic shell structure.

[0014] In the figure: 1. Plastic-sealed shell; 11. Sealing plate; 12. Columnar shell; 13. Through hole; 14. First limiting groove; 141. First keyway; 15. Second limiting groove; 151. Second keyway; 16. Connecting protrusion; 17. Reinforcement block; 18. Reinforcement rib; 2. Stator bracket; 21. Sealing shaft cylinder; 3. Stator core; 31. Third keyway; 4. Fastening bolt. DETAILED DESCRIPTION

[0015] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0016] like Figures 1 to 3As shown, this embodiment includes a plastic housing 1, a stator bracket 2 and a stator core 3. The plastic housing 1 includes a sealing plate 11 and a cylindrical housing 12. The sealing plate 11 and the cylindrical housing 12 are both cylindrical and the diameter of the sealing plate 11 is larger than that of the cylindrical housing 12. The plastic housing 1 is a completely sealed housing with a hollow interior. The sealing plate 11 and the cylindrical housing 12 are interconnected and sealed. A through hole 13 is opened in the center of the plastic housing 1 and the through hole 13 passes through the sealing plate 11 and the cylindrical housing 12. The centers of the stator bracket 2 and the stator core 3 are also through-shaped. A first limiting groove 14 and a second limiting groove 15 are formed inside the through hole 13 near the two ends of the through hole 13. The stator core 3 is fixedly installed between the first limiting groove 14 and the second limiting groove 15, and the two ends of the stator core 3 are respectively fixedly connected to the end faces of the first limiting groove 14 and the second limiting groove 15. The stator bracket 2 and the stator core 3 are connected to each other. The stator bracket 2 and the stator core 3 are installed inside the plastic shell 1. Sealing shaft cylinders 21 extend from both ends of the stator bracket 2, and the sealing shaft cylinders 21 are respectively sealed and connected to the two ends of the through hole 13.

[0017] like Figures 1 to 3 As shown, the first limiting groove 14 and the second limiting groove 15 are respectively provided with a first key groove 141 and a second key groove 151, and a third key groove 31 is provided inside the stator core 3. When the stator core 3 and the plastic shell 1 are installed, the two ends of the third key groove 31 are in contact with the first key groove 141 and the second key groove 151.

[0018] To elaborate further, Figures 1 to 2 As shown, four connecting protrusions 16 are integrally formed on the sealing plate 11, and the connecting protrusions 16 are arranged in a circular array. The fastening bolts 4 pass through the interior of the connecting protrusions 16 to completely seal and fix the sealing plate 11. Reinforcement blocks 17 are formed on both sides of the end of the connecting protrusion 16. The reinforcement blocks 17 improve the structural strength of the connecting protrusion 16, making the sealing structure of the sealing plate 11 of the plastic-sealed shell 1 more secure. A number of reinforcing ribs 18 are formed on the outer side of the sealing plate 11. The reinforcing ribs 18 are linear and circular, and the reinforcing ribs 18 improve the structural strength of the sealing plate 11.

[0019] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope defined by the appended claims.

[0020] Although various terms are used in this document, the possibility of using other terms is not excluded. These terms are used only to more conveniently describe and explain the essence of the present invention; interpreting them as any additional restrictions is contrary to the spirit of the present invention.

Claims

1. A waterproof and dustproof motor stator, comprising a plastic-encapsulated housing (1), a stator bracket (2) and a stator core (3), characterized in that: The plastic-sealed shell (1) comprises a sealing plate (11) and a columnar shell (12); the diameter of the sealing plate (11) is larger than that of the columnar shell (12); the plastic-sealed shell (1) is a sealed hollow shell; the sealing plate (11) and the columnar shell (12) are interconnected and sealed; a through hole (13) is provided in the center of the plastic-sealed shell (1), and the through hole (13) passes through the sealing plate (11) and the columnar shell (12); a first A limiting groove (14) and a second limiting groove (15) are provided, the stator core (3) is fixedly installed between the first limiting groove (14) and the second limiting groove (15), the stator bracket (2) and the stator core (3) are connected to each other, the stator bracket (2) and the stator core (3) are installed inside the plastic-sealed shell (1), and sealing shaft cylinders (21) extend from both ends of the stator bracket (2), and the sealing shaft cylinders (21) are respectively sealed and connected to the two ends of the through hole (13).

2. The waterproof and dustproof motor stator according to claim 1, characterized in that: A plurality of connecting protrusions (16) are integrally formed on the sealing plate (11), fastening bolts (4) are fixed inside the connecting protrusions (16), and reinforcing blocks (17) are formed at the ends of the connecting protrusions (16).

3. The waterproof and dustproof motor stator according to claim 1, characterized in that: A plurality of reinforcing ribs (18) are formed on the outer side surface of the sealing plate (11).

4. The waterproof and dustproof motor stator according to claim 1, characterized in that: A first key slot (141) and a second key slot (151) are respectively provided on the first limiting slot (14) and the second limiting slot (15); a third key slot (31) is provided inside the stator core (3); and the third key slot (31) is fitted with the first key slot (141) and the second key slot (151).

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