CN201008104Y - Motor stator assembly - Google Patents

Abstract

The utility model relates to a motor stator assembly for a motor, comprising a stator core lamination formed by stacking a plurality of stator iron sheets, a stator winding, an outer insulating slot paper, a left inner insulating slot paper nesting and a right inner insulating slot paper nesting; the left inner insulating slot paper nesting and the right inner insulating slot paper nesting are in the shape of an outer ring similar to the shape of the stator iron sheet and an inner insulating slot paper extending to one side similar to the stator slot of the stator iron sheet, and each end of the inner insulating slot paper thereon is provided with a step outward; the left inner insulating slot paper nesting and the right inner insulating slot paper nesting are respectively inserted into each stator slot from both ends of the stator core lamination; the stator winding is embedded in each stator slot of the stator core lamination, and the outer insulating slot paper is also inserted on the stator winding in each stator slot. With such a structure, a motor stator assembly with low cost, simple assembly, and not easy to damage the outer insulation layer of the stator winding enameled wire is provided.

Description

Motor stator assembly

【Technical field】

The utility model relates to a motor, in particular to a motor stator assembly used on the motor.

【Background technique】

As one of the most common power sources, motors are widely used in various fields. However, with the rise of raw materials, the cost of motors is getting higher and higher, and the competition for sales of motors is becoming more and more fierce. How to reduce the cost of motors under the premise of ensuring high quality is a big problem.

The motor stator assembly used in the traditional motor adopts the stator core lamination stacked by multiple stator core laminations, inserts the inner insulation slot paper into each stator slot, and then embeds the stator winding, in order to ensure the stator winding and the end of the stator core lamination The electrical distance meets the specified safety requirements, and the end distance is generally required to be very high, which results in a large amount of enameled wire in the stator winding and high cost, and such a structure is easy to cause the stator core laminations to be scraped when embedded in the stator winding. Damage the outer insulation layer of the enameled wire of the stator winding, resulting in a short circuit of the stator winding.

Chinese utility model patent 200420062526.4 is a motor stator. Insulating epoxy plates are bonded on the upper and lower sides of the annular stator base. When the stator winding is embedded, it is easy to cause the outer insulation layer of the enameled wire of the stator winding to be scratched by the stator core laminations, resulting in a short circuit of the stator winding. However, the inner insulation slot paper needs to be inserted into each stator slot one by one, and the working efficiency of this structure is low. , which increases labor costs.

【Content of utility model】

The utility model aims at the above-mentioned defects of the prior art, and provides a motor stator assembly with low cost, simple assembly, and not easy to damage the outer insulating layer of the enameled wire of the stator winding.

In order to solve the above technical problems, the utility model includes stator core laminations, stator windings, outer insulation slot paper, left inner insulation slot paper nesting and right inner insulation slot paper nesting which are formed by stacking multiple stator iron chips; The nesting shape of the left inner insulating slot paper is an outer ring similar to the shape of the stator core sheet and an inner insulating slot paper extending to one side similar to the stator slot of the stator iron sheet. The teeth between two inner insulation slot papers are similar to the teeth between every two adjacent stator slots on the stator core, and the end of each inner insulation slot paper nested on the left inner insulation slot paper is provided with a step outward; The nesting shape of the paper in the right inner insulation slot is an outer ring similar to the shape of the stator core sheet and an inner insulation slot paper extending to one side similar to the stator slot of the stator core sheet. The teeth between two inner insulation slot papers are similar to the teeth between every two adjacent stator slots on the stator core, and the end of each inner insulation slot paper nested on the right inner insulation slot paper is provided with a step inward; The paper nesting of the left inner insulation slot is inserted into each stator slot from one end of the stator core lamination, the paper nesting of the right inner insulation slot is inserted into each stator slot from the other end of the stator core lamination, and the paper nesting of the left inner insulation slot The step and the step of the right inner insulation slot paper nesting are matched in each stator slot of the stator core lamination; the stator winding is embedded in the stator iron with the left inner insulation slot paper nesting and the right inner insulation slot paper nesting In each stator slot of the core laminations, an outer insulating slot paper is inserted on the stator windings in each stator slot of the stator core laminations.

As an improvement of the utility model, the paper nesting of the left inner insulating slot and the nesting of the right inner insulating slot paper are integrated with the stator core laminations.

As another preferred embodiment of the present invention, the nesting of the left inner insulating slot paper and the right inner insulating slot paper nesting have the same shape and structure, and both are an outer ring similar in shape to the stator core sheet and extend to one side with The inner insulation slot paper of the stator core sheet is similar to the stator slot, and the teeth between every two adjacent inner insulation slot papers on the left inner insulation slot paper nesting are similar to the teeth between every two adjacent stator slots on the stator core sheet , the paper nesting of the left inner insulation slot is inserted into each stator slot from one end of the stator core lamination, the paper nesting of the right inner insulation slot is inserted into each stator slot from the other end of the stator core lamination, and the paper nesting of the left inner insulation slot The sleeve and the right inner insulation slot paper are nested in each stator slot of the stator core lamination without contact for a certain distance, and there is also an inner insulation slot paper in each stator slot; the stator winding is embedded in a left inner insulation slot paper Nesting, right inner insulation slot paper nesting and inner insulation slot paper stator core laminations are inserted into each stator slot, and outer insulation slot papers are also inserted on the stator windings in each stator slot of the stator iron core laminations.

Compared with the prior art, the utility model has the beneficial effect that: the utility model provides a motor stator assembly with low cost, simple assembly, and not easy to damage the outer insulation layer of the enameled wire of the stator winding.

【Description of drawings】

Fig. 1 is a structural representation of the utility model;

Fig. 2 is a schematic diagram of the structure of the stator core laminations, the nesting of the left inner insulating slot paper and the nesting of the right inner insulating slot paper in Fig. 1;

Fig. 3 is a structural schematic diagram of the nesting of the left inner insulating slot paper in Fig. 1;

Fig. 4 is a structural schematic diagram of the nesting of the right inner insulation slot paper in Fig. 1;

Fig. 5 is a structural schematic diagram of the nesting of the left inner insulating slot paper and the nesting of the right inner insulating slot paper in the stator core laminations in Fig. 1;

Fig. 6 is another preferred embodiment of the utility model in which the stator core laminations, the nesting of the left inner insulating slot paper, the nesting of the right inner insulating slot paper and the assembly of the inner insulating slot paper;

Fig. 7 is a schematic structural view of the nesting of left inner insulating slot paper in Fig. 6 .

【Detailed ways】

Below in conjunction with accompanying drawing and specific embodiment, the utility model is described in further detail.

It can be seen from Fig. 1, Fig. 2, Fig. 3 and Fig. 4 that the utility model includes a stator core lamination 1, a stator winding 2, and an outer insulating slot paper (not marked) formed by stacking a plurality of stator core laminations. 1. Left inner insulating slot paper nesting 3 and right inner insulating slot paper nesting 4; The shape of the left inner insulating slot paper nesting 3 is an outer ring 31 which is similar in shape to the stator core sheet and extends to one side to match the stator core sheet The inner insulating slot paper 32 similar to the stator slot, the tooth portion 33 between every two adjacent inner insulating slot papers 32 on the left inner insulating slot paper nesting 3 and the tooth portion between every two adjacent stator slots on the stator core sheet Similarly, the end of each inner insulating slot paper 32 on the left inner insulating slot paper nesting 3 is provided with a step 34 outward; the shape of the right inner insulating slot paper nesting 4 is an outer ring similar in shape to the stator core sheet 41 and the inner insulating slot paper 42 extending to one side similar to the stator slot of the stator core sheet, the tooth portion 43 between each adjacent two inner insulating slot papers 42 on the right inner insulating slot paper nesting 4 is connected to each phase on the stator core sheet The teeth between the adjacent two stator slots are similar, and the end of each inner insulation slot paper 42 on the right inner insulation slot paper nest 4 is provided with a step 44 inward; the left inner insulation slot paper nest 3 is stacked from the stator core. One end of sheet 1 is inserted into each stator slot, the right inner insulation slot paper nest 4 is inserted into each stator slot from the other end of stator core lamination 1, the step 34 of the left inner insulation slot paper nest 3 and the right inner insulation slot The steps 44 of the paper nest 4 fit in each stator slot of the stator core lamination 1 (as shown in Figure 5); In each stator slot of the stator iron core laminations 1 nested 4, an outer insulating slot paper (not marked) is also inserted on the stator winding 2 in each stator slot of the stator iron core laminations 1 . By adopting such a structure and method, all the inner insulating slot papers can be inserted into all the stator slots in each stator core lamination 1 at one time, thereby improving the work efficiency and reducing the labor cost; It can reduce the distance H between the stator winding and the end of the stator core laminations, and meet the specified safety requirements, thereby reducing the amount of enameled wire in the stator winding and reducing the cost; at the same time, such a structure will not cause scratches on the stator when it is embedded in the stator winding The outer insulation layer of the enameled wire of the winding improves the quality of the product.

As an improvement of the utility model, the left inner insulating slot paper nest 3 and the right inner insulating slot paper nest 4 are integrated with the stator core laminations 1 . If an injection mold is used, the stator core lamination 1 is put into an injection molding machine equipped with an injection mold for injection molding, so that the outer ring of the stator core lamination 1 is covered with a layer of insulating plastic, which is inserted into the stator core lamination 1 The paper nesting 3 of the left inner insulating slot and the nesting 4 of the right inner insulating slot paper cooperate better.

As another preferred embodiment of the present utility model, it can be seen from Fig. 1, Fig. 6 and Fig. 7 that the left inner insulating slot paper nesting 3 and the right inner insulating slot paper nesting 4 have the same shape and structure, and are all one The outer ring 31 with the shape similar to the stator core sheet and the inner insulating slot paper 32 extending to one side similar to the stator slot of the stator iron sheet, the left inner insulating slot paper nesting 3 between every two adjacent inner insulating slot papers 32 The tooth part 33 is similar to the tooth part between every two adjacent stator slots on the stator core sheet. The left inner insulating slot paper insert 3 is inserted into each stator slot from one end of the stator core lamination 1, and the right inner insulating slot paper insert is inserted into each stator slot. The sleeve 4 is inserted into each stator slot from the other end of the stator core lamination 1, and the paper nest 3 of the left inner insulation slot and the paper nest 4 of the right inner insulation slot are not in contact with each stator slot of the stator core lamination 1. For a certain distance, inner insulating slot paper 5 is also provided in each stator slot; the stator winding 2 is embedded in the stator iron with left inner insulating slot paper nesting 3, right inner insulating slot paper nesting 4 and inner insulating slot paper 5 In each stator slot of the core laminations 1, an outer insulating slot paper (not marked) is also inserted on the stator winding 2 in each stator slot of the stator core laminations 1 . By adopting such a structure and method, the distance H between the stator winding and the end of the stator core lamination can be reduced, and meet the specified safety requirements, thereby reducing the amount of enameled wire in the stator winding and reducing the cost; at the same time, such a structure is embedded in the The outer insulation layer of the enameled wire of the stator winding will not be scratched during the stator winding, thereby improving the quality of the product.

The above descriptions are only preferred embodiments of the present utility model, and all equivalent changes and modifications made in accordance with the claims of the present utility model shall fall within the scope of the claims of the present utility model.

Claims (3)

1. Motor stator assembly, including stator core laminations (1), stator windings (2) and outer insulation slot paper, which are formed by stacking multiple stator iron chips. It is characterized in that it also includes nesting of left inner insulation slot paper (3) and the right inner insulating slot paper nesting (4); the shape of the left inner insulating slot paper nesting (3) is an outer ring (31) similar in shape to the stator core sheet and extending to one side The inner insulating slot paper (32) similar to the stator slot of the stator core sheet, the tooth part (33) between every two adjacent inner insulating slot papers (32) on the left inner insulating slot paper (3) Similar to the teeth between every two adjacent stator slots on the stator core sheet, a step is provided at the end of each inner insulation slot paper (32) on the left inner insulation slot paper nest (3) (34); the shape of the right inner insulation slot paper nesting (4) is an outer ring (41) similar in shape to the stator core sheet and an inner ring (41) extending to one side similar to the stator core slot of the stator core sheet Insulation slot paper (42), the teeth (43) between every two adjacent inner insulation slot papers (42) on the right inner insulation slot paper nesting (4) are connected with each adjacent two teeth on the stator core sheet The teeth between the two stator slots are similar, and the end of each inner insulating slot paper (42) on the right inner insulating slot paper nesting (4) is provided with a step (44) inward; the left inner insulating slot paper The nesting (3) is inserted into each stator slot from one end of the stator core laminations (1), and the right inner insulation slot paper nesting (4) is inserted from the other end of the stator core laminations (1) In each stator slot, the step (34) of the left inner insulating slot paper nesting (3) and the step (44) of the right inner insulating slot paper nesting (4) are in the stator core lamination ( 1) are matched in each stator slot; the stator winding (2) is embedded in the stator core provided with the left inner insulation slot paper nest (3) and the right inner insulation slot paper nest (4) In each stator slot of the laminations (1), the outer insulating slot paper is also inserted on the stator winding (2) in each stator slot of the stator core laminations (1). 2. The motor stator assembly according to claim 1, characterized in that: the left inner insulation slot paper nest (3) and the right inner insulation slot paper nest (4) are connected with the stator core laminations (1) Integration. 3. The motor stator assembly according to claim 1, characterized in that: the left inner insulation slot paper nest (3) and the right inner insulation slot paper nest (4) have the same shape and structure, both of which are one An outer ring (31) whose shape is similar to that of the stator core sheet and an inner insulating slot paper (32) extending to one side similar to the stator slot of the stator iron sheet, the left inner insulating slot paper is nested on (3) The tooth portion (33) between every adjacent two inner insulating slot papers (32) is similar to the tooth portion between every adjacent two stator slots on the stator core sheet, and the left inner insulating slot paper is nested (3 ) from one end of the stator core laminations (1) into each stator slot, and the right inner insulating slot paper nesting (4) is inserted into each stator slot from the other end of the stator core laminations (1) Inside, the left inner insulating slot paper nesting (3) and the right inner insulating slot paper nesting (4) are not in contact with each stator slot of the stator core laminations (1) for a certain distance. Each stator slot is also provided with an inner insulation slot paper (5); the stator winding (2) is embedded in the left inner insulation slot paper nest (3), the right inner insulation slot paper nest (4 ) and the stator core laminations (1) of the inner insulation slot paper (5) in each stator slot, the stator windings (2) in each stator slot of the stator core laminations (1) are also inserted with The outer insulating slot paper.

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