Motor stator assembly

Abstract

A motor stator assembly comprises a stator casing and a stator body, the stator casing is sleeved outside the stator body, and the stator body is composed of a bearing and at least two middle pole plate groups axially arranged below the bearing. The bearing and the middle polar plate group are connected through plastic package; according to the motor stator assembly provided by the utility model, the outer side of the intermediate plate group is integrally molded into the plastic package through injection molding, and then the intermediate plate group and the stator casing are assembled into the stator assembly, so that the production complexity is reduced, the production efficiency is improved, the production cost is saved, and the yield is also improved.

Description

Technical Field

[0001] The utility model relates to the field of motors, in particular to a motor stator assembly. Background Art

[0002] Most of the existing motor stator assemblies are of a split structure, and two intermediate plates need to be spliced and assembled to obtain the stator assembly. However, the production efficiency of manual assembly and splicing is relatively low, and the yield rate is also low, resulting in a high production cost. Therefore, there is a need for an integrated motor stator assembly to improve production efficiency, save costs and improve the yield rate to meet the requirements. Summary of the Utility Model

[0003] The technical problem to be solved by the utility model is: to solve the problem of low production efficiency in the prior art, the utility model provides a motor stator assembly.

[0004] The technical solution adopted by the utility model to solve its technical problem is: a motor stator assembly, including a stator housing and a stator body, the stator housing is sleeved outside the stator body, and the stator body is composed of a bearing and at least two groups of intermediate plate groups axially arranged below the bearing; the bearing and the intermediate plate group are connected by plastic encapsulation.

[0005] Further, the intermediate plate group includes a first intermediate plate and a second intermediate plate arranged oppositely up and down, and a coil groove for winding is formed between the first intermediate plate and the second intermediate plate.

[0006] Further, both the first intermediate plate and the second intermediate plate are composed of a plate surface and a plurality of trapezoidal plates arranged on the plate surface.

[0007] Further, the first intermediate plate is inverted above the second intermediate plate, and the trapezoidal plates of the first intermediate plate and the second intermediate plate are arranged in a cross manner, which facilitates the assembly of the intermediate plates into an intermediate plate group through the cross arrangement of the trapezoidal plates.

[0008] Further, a plastic encapsulation is integrally injection-molded between the bearing and the intermediate plate group, a convex portion is provided at one end of the plastic encapsulation away from the bearing, and a wiring seat is provided at the rear of the plastic encapsulation.

[0009] Further, the stator housing is of a cylindrical structure, and a through hole is provided at the top of the stator housing, and the aperture of the through hole is matched with the outer diameter of the bearing.

[0010] Advantages of the utility model:

[0011] For the motor stator assembly of the present utility model, a plastic seal is integrally formed by injection molding on the outer side of the intermediate plate group, and then it is assembled with the stator housing to form the stator assembly, which reduces the production complexity, improves the production efficiency, saves the production cost, and also improves the yield rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0013] Figure 1 Schematic diagram of the motor stator assembly according to the preferred embodiment of the present utility model;

[0014] Figure 2 Schematic diagram of the stator body according to the preferred embodiment of the present utility model;

[0015] Figure 3 Stereogram of the stator body according to the preferred embodiment of the present utility model;

[0016] Figure 4 Schematic diagram of the intermediate plate group according to the preferred embodiment of the present utility model;

[0017] In the figure, 1, stator housing; 2, stator body; 3, bearing; 4, intermediate plate group; 4-1, first intermediate plate; 4-2, second intermediate plate; 4-3, coil slot; 4-4, plate surface; 4-5, trapezoidal plate; 5, plastic seal; 5-1, convex portion; 5-2, wiring seat; 6, through hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals indicate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation of the present utility model.

[0019] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "horizontal", "top", "inner", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0020] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the term "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0021] As Figures 1-4 shown, a motor stator assembly includes a stator housing 1 and a stator body 2. The stator housing 1 is sleeved outside the stator body 2. The stator body 2 is composed of a bearing 3 and at least two groups of middle pole plate groups 4 axially arranged below the bearing 3. The bearing 3 and the middle pole plate group 4 are connected by a plastic seal 5.

[0022] The middle pole plate group 4 includes a first middle pole plate 4-1 and a second middle pole plate 4-2 arranged opposite to each other up and down. A coil slot 4-3 for winding is formed between the first middle pole plate 4-1 and the second middle pole plate 4-2. Both the first middle pole plate 4-1 and the second middle pole plate 4-2 are composed of a plate surface 4-4 and a plurality of trapezoidal plates 4-5 arranged on the plate surface 4-4. The first middle pole plate 4-1 is inverted above the second middle pole plate 4-2, and the trapezoidal plates 4-5 of the first middle pole plate 4-1 and the second middle pole plate 4-2 are arranged crosswise, which facilitates the assembly of the middle pole plates into the middle pole plate group through the crosswise arrangement of the trapezoidal plates 4-5.

[0023] A plastic seal 5 is integrally injection-molded between the bearing 3 and the middle pole plate group 4. A convex portion 5-1 is provided at one end of the plastic seal 5 away from the bearing 3, and a wiring seat 5-2 is provided at the rear of the plastic seal 5. The stator housing 1 is of a cylindrical structure, and a through hole 6 is provided at the top of the stator housing 1. The aperture of the through hole 6 is matched with the outer diameter of the bearing 3.

[0024] During use, first place two middle pole plates opposite to each other up and down so that their trapezoidal plates 4-5 are arranged crosswise to form the middle pole plate group 4. Then place the two groups of middle pole plate groups 4 together and place the bearing 3 above. At this time, perform injection molding on its periphery so that an integral plastic seal 5 is formed on its periphery. At this time, the stator body 2 is obtained. Subsequently, pass the end of the stator body 2 provided with the bearing 3 through the through hole 6 at the top of the stator housing 1, and assemble the stator body 2 and the stator housing 1 into one body, thereby completing the installation of the entire motor stator assembly.

[0025] In this specification, the schematic expressions of the terms do not necessarily refer to the same embodiments. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments.

[0026] Taking the above-described ideal embodiments of the present utility model as inspiration, through the above description, relevant staff can completely make various changes and modifications without departing from the technical idea of the present utility model. The technical scope of the present utility model is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A motor stator assembly, characterized in that: The invention comprises a stator housing (1) and a stator body (2), wherein the stator housing (1) is sleeved outside the stator body (2), and the stator body (2) is composed of a bearing (3) and at least two sets of intermediate plate groups (4) axially arranged below the bearing (3); the bearing (3) and the intermediate plate group (4) are connected by a plastic seal (5).

2. The motor stator assembly according to claim 1, characterized in that: The intermediate plate group (4) comprises a first intermediate plate (4-1) and a second intermediate plate (4-2) which are arranged opposite to each other up and down, and a coil groove (4-3) for winding is formed between the first intermediate plate (4-1) and the second intermediate plate (4-2).

3. The motor stator assembly according to claim 2, characterized in that: The first intermediate electrode plate (4-1) and the second intermediate electrode plate (4-2) are both composed of a plate surface (4-4) and a plurality of trapezoidal plates (4-5) arranged on the plate surface (4-4).

4. The motor stator assembly according to claim 3, characterized in that: The first intermediate electrode plate (4-1) is inverted above the second intermediate electrode plate (4-2), and the trapezoidal plates (4-5) of the first intermediate electrode plate (4-1) and the second intermediate electrode plate (4-2) are arranged crosswise.

5. The motor stator assembly according to claim 1, characterized in that: The bearing (3) and the intermediate plate assembly (4) are integrally injection molded to form a plastic seal (5), one end of the plastic seal (5) away from the bearing (3) is provided with a protrusion (5-1), and the rear of the plastic seal (5) is provided with a wiring seat (5-2).

6. The motor stator assembly according to claim 1, characterized in that: The stator housing (1) is a cylindrical structure. A through hole (6) is provided on the top of the stator housing (1). The diameter of the through hole (6) matches the outer diameter of the bearing (3).

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