Motor stator insulation-resistant mechanism and stator core

Abstract

The utility model belongs to the technical field of motors, and relates to a motor stator insulation-resistant mechanism and a stator core. The plastic cover comprises a plastic cover body, the plastic cover body comprises an upper cover and a lower cover which are independent from each other, the upper cover and the lower cover are respectively provided with an upper insulation paper groove and a lower insulation paper groove, the upper insulation paper groove and the lower insulation paper groove are in one-to-one correspondence, the plastic cover further comprises an insulation sheet, and the two ends of the insulation sheet can be inserted into the upper insulation paper groove and the lower insulation paper groove respectively. According to the utility model, the original integrated injection molding process is changed into the process that the insulation-resistant and high-temperature-resistant sheet molding material is inserted between the upper cover and the lower cover which are separated from each other through injection molding, so that the same technical requirement grade requirement is met, the pressure-resistant qualification rate of products is well improved, and the production cost is reduced.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of electric machines, and relates to a motor stator insulation-resistant mechanism and a stator core. BACKGROUND

[0002] The stator core for a digital generator requires insulation resistance, high-temperature resistance and the like. The original process is to form an outer plastic package structure for the riveted and stacked core through an injection molding process, so as to form an integrated structure of the core and the plastic part. The injection molding process requires high precision, and the gaps and air holes of the core are prone to cause product leakage during injection molding, resulting in a high unqualified rate and high production cost.

[0003] For example, the applicant's previously applied patent for a plastic-sleeved skeleton structure for a motor stator [application number: 2023221768843] includes a plastic-sleeved body and a plastic-sleeved upper cover. The height of the plastic-sleeved body is higher than that of the stator core. When the stator core is inserted into the plastic-sleeved body, the top of the plastic-sleeved body is higher than that of the stator core. The plastic-sleeved upper cover is detachably connected to the top of the plastic-sleeved body. However, the patent still has the problems of low production qualified rate and high production cost of the overall plastic package structure. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at the above-mentioned problem, and provides a motor stator insulation-resistant mechanism and a stator core.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] A motor stator insulation-resistant mechanism includes a plastic cover body. The plastic cover body includes independent upper and lower covers. The upper and lower covers are respectively provided with upper and lower insulation paper grooves. The upper and lower insulation paper grooves are one-to-one corresponding. The mechanism also includes an insulation sheet. The two ends of the insulation sheet can be inserted into the upper and lower insulation paper grooves.

[0007] In the above-mentioned motor stator insulation-resistant mechanism, the upper cover is provided with a terminal.

[0008] In the above-mentioned motor stator insulation-resistant mechanism, the upper cover is provided with upper paper clamping columns that are annularly distributed and uniformly spaced. An upper insulation paper groove is formed between two adjacent upper paper clamping columns. The lower cover is provided with lower paper clamping columns that are annularly distributed and uniformly spaced. A lower insulation paper groove is formed between two adjacent lower paper clamping columns.

[0009] In the above-mentioned motor stator insulation-resistant mechanism, the upper and lower paper clamping columns are T-shaped.

[0010] In the above-mentioned motor stator insulation-resistant mechanism, the insulation sheet is an insulation paper sheet or a plastic sheet.

[0011] The utility model provides an insulating-resistant motor stator core, including stator core and plastic cover, the plastic cover includes the upper cover and lower cover of independent respectively, the upper cover and lower cover are equipped with upper insulation paper groove and lower insulation paper groove respectively, still include insulating sheet, the upper cover and lower cover cover set up on stator core upper and lower two surfaces, and stator core is equipped with winding slot, upper insulation paper groove, lower insulation paper groove and winding slot same and one -to -one correspondence, and insulating sheet is inserted into winding slot and insulating sheet's both ends respectively extend into upper insulation paper groove and lower insulation paper groove.

[0012] In the above insulating-resistant motor stator core, the upper cover is provided with a terminal.

[0013] In the above insulating-resistant motor stator core, the upper cover is provided with a terminal.

[0014] In the above insulating-resistant motor stator core, the upper cover is provided with a terminal.

[0015] In the above insulating-resistant motor stator core, the upper cover is provided with a terminal.

[0016] Compared with the prior art, the utility model has the advantages that:

[0017] The utility model changes the original integrated injection molding process into separate upper and lower covers, and inserts an insulating-resistant, high-temperature-resistant sheet forming material in the middle, so that the same technical requirement level is met, the product's pressure resistance qualification rate is improved, and the production cost is reduced.

[0018] Other advantages, objects and features of the utility model will be embodied in part through the following description, and will be understood by those skilled in the art through research and practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is a structural schematic diagram of the utility model,

[0020] Figure 2 is an exploded view of the utility model.

[0021] Figure 3 is Figure 2 Another schematic view.

[0022] In the drawing: upper cover 1, lower cover 2, upper insulation paper groove 3, lower insulation paper groove 4, insulating sheet 5, terminal 6, upper cardboard column 7, lower cardboard column 8, stator core 9, winding slot 10. DETAILED DESCRIPTION

[0023] The utility model is further explained in connection with the drawings and specific embodiments.

[0024] The embodiment provides a motor stator insulation resistant mechanism, as shown in the figure, comprising a plastic cover body, the plastic cover body comprises independent upper cover 1 and lower cover 2 respectively, the upper cover 1 and lower cover 2 are respectively provided with upper insulation paper slot 3 and lower insulation paper slot 4, and the upper insulation paper slot 3 and lower insulation paper slot 4 are one-to-one corresponding, further comprising insulation sheet 5, both ends of the insulation sheet 5 can be inserted into the upper insulation paper slot 3 and lower insulation paper slot 4 respectively. Figures 2-3

[0025] The upper cover 1 is provided with wiring terminal 6, which is used for connecting the outgoing line of each winding of the motor.

[0026] The upper cover 1 is provided with the upper paper clamping column 7 that is annularly distributed and uniformly spaced, and the upper insulation paper slot 3 is formed between two adjacent upper paper clamping columns 7, and the lower cover 2 is provided with the lower paper clamping column 8 that is annularly distributed and uniformly spaced, and the lower insulation paper slot 4 is formed between two adjacent lower paper clamping columns 8.

[0027] The upper paper clamping column 7 and the lower paper clamping column 8 are T-shaped. Here, the T-shaped refers to the end of the upper paper clamping column 7 and the lower paper clamping column 8 protruding to both sides.

[0028] The insulation sheet 5 is an insulation paper sheet or a plastic sheet. The insulation paper is prior art, and the plastic sheet can be formed by injection molding, which is also prior art. The insulation sheet 5 cooperates with the upper cover 1 and the lower cover 2 to form overall insulation. The insulation paper sheet can be made of AMA insulation paper, and the plastic sheet can be injection molded.

[0029] In combination with the figure, the utility model still provides a motor stator core that is resistant to insulation, comprising a stator core 9 and a plastic cover body, Figures 1-3

[0030] The plastic cover body comprises independent upper cover 1 and lower cover 2 respectively, the upper cover 1 and lower cover 2 are respectively provided with upper insulation paper slot 3 and lower insulation paper slot 4, further comprising insulation sheet 5, the upper cover 1 and lower cover 2 are covered on the upper and lower surfaces of the stator core 9, the stator core 9 is provided with winding slot 10, the upper insulation paper slot 3, lower insulation paper slot 4 and winding slot 10 are same in number and one-to-one corresponding, here, one-to-one corresponding refers to that one upper insulation paper slot 3 and lower insulation paper slot 4 cooperate with one winding slot 10 to form a complete winding slot structure.

[0031] The insulation sheet 5 is inserted into the winding slot 10, and both ends of the insulation sheet 5 extend into the upper insulation paper slot 3 and the lower insulation paper slot 4 respectively, to form overall insulation effect. The insulation sheet 5 can be inserted into the winding slot 10 by a paper inserting machine.

[0032] The upper cover 1 is provided with wiring terminal 6.​​

[0033] The upper cover 1 is provided with upper card paper columns 7 which are annularly distributed and uniformly spaced, and between two adjacent upper card paper columns 7, an upper insulation paper groove 3 is formed; the lower cover 2 is provided with lower card paper columns 8 which are annularly distributed and uniformly spaced, and between two adjacent lower card paper columns 8, a lower insulation paper groove 4 is formed.

[0034] The upper card paper column 7 and the lower card paper column 8 are T-shaped. The insulation sheet 5 is an insulation paper sheet or a plastic sheet. The insulation paper sheet can be made of AMA insulation paper, and the plastic sheet can be injection molded to match the shape of the winding groove 10.

[0035] The utility model discloses a process of original integral injection molding is changed into the injection molding of separate upper and lower covers, and the middle is inserted into the insulation-resistant, high-temperature-resistant sheet forming material, reaches the same technical requirement level with integral set plastic, improves the product pressure resistance qualified rate, reduces the production cost.

[0036] The specific embodiments described herein are merely illustrative of the present utility model. Those skilled in the art of the present utility model can make various modifications or supplements to the described specific embodiments or adopt similar ways to replace, but will not deviate from the spirit of the present utility model.

Claims

1. An electric machine stator insulation resistant mechanism comprising a plastic cover, characterized in that, The plastic cover body comprises independent upper cover (1) and lower cover (2), the upper cover (1) and the lower cover (2) are respectively provided with upper insulation paper groove (3) and lower insulation paper groove (4), the upper insulation paper groove (3) and the lower insulation paper groove (4) are one-to-one correspondence, and further comprises insulation sheet (5), both ends of the insulation sheet (5) can be inserted into the upper insulation paper groove (3) and the lower insulation paper groove (4) respectively.

2. The motor stator insulation resistant mechanism according to claim 1, characterized by, The upper cover (1) is provided with wiring terminal (6).

3. The motor stator insulation resistant mechanism according to claim 1, wherein The upper cover (1) is provided with annularly distributed and uniformly spaced upper paper clamping column (7), and the upper insulation paper groove (3) is formed between two adjacent upper paper clamping column (7), the lower cover (2) is provided with annularly distributed and uniformly spaced lower paper clamping column (8), and the lower insulation paper groove (4) is formed between two adjacent lower paper clamping column (8).

4. The motor stator insulation resistant mechanism according to claim 3, characterized by, The upper paper clamping column (7) and the lower paper clamping column (8) are T-shaped.

5. The motor stator resistance to insulation mechanism of claim 1, wherein, The insulation sheet (5) is insulation paper sheet or plastic sheet.

6. An insulated-resistant motor stator core comprising a stator core (9) and a plastic cover, characterized in that, The plastic cover body comprises independent upper cover (1) and lower cover (2), the upper cover (1) and the lower cover (2) are respectively provided with upper insulation paper groove (3) and lower insulation paper groove (4), further comprising insulation sheet (5), the upper cover (1) and the lower cover (2) are arranged on the upper and lower surfaces of the stator core (9), the stator core (9) is provided with winding groove (10), the upper insulation paper groove (3), the lower insulation paper groove (4) and the winding groove (10) are same in number and one-to-one correspondence, the insulation sheet (5) is clamped into the winding groove (10), and both ends of the insulation sheet (5) extend into the upper insulation paper groove (3) and the lower insulation paper groove (4) respectively.

7. The isolated-resistant motor stator core of claim 6, wherein, The upper cover (1) is provided with wiring terminal (6).

8. The isolated motor stator core of claim 6, wherein, The upper cover (1) is provided with annularly distributed and uniformly spaced upper paper clamping column (7), and the upper insulation paper groove (3) is formed between two adjacent upper paper clamping column (7), the lower cover (2) is provided with annularly distributed and uniformly spaced lower paper clamping column (8), and the lower insulation paper groove (4) is formed between two adjacent lower paper clamping column (8).

9. The isolated-resistant motor stator core of claim 8, wherein, The upper paper clamping column (7) and the lower paper clamping column (8) are T-shaped.

10. The isolated motor stator core of claim 6, wherein, The insulation sheet (5) is insulation paper sheet or plastic sheet.

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