Insulation structure at two ends of stator core

Abstract

The utility model relates to the technical field of stator iron cores, in particular to an insulation structure at two ends of a stator iron core, which comprises the stator iron core and insulation plates used for protecting flat wire windings and playing an insulation role, and the insulation plates are arranged at two ends of the stator iron core and abut against each other. A plurality of wire slots are uniformly arranged on the stator core along the circumference, the insulating plate is provided with through holes corresponding to the wire slots, and required hairpins are correspondingly inserted into the plurality of wire slots to form a flat wire winding. No extra equipment is needed to support the installation of the hairpin and the stator iron core, the insulating plates are installed at the two ends of the stator iron core, the insulating plates protect the flat wires at the two ends of the stator iron core and play an insulating role, the production cost is greatly reduced, meanwhile, the operation of placing the insulating plates at the two ends of the stator iron core is simple, and the production efficiency is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of stator core technology, and in particular to an insulation structure at both ends of a stator core. Background Technology

[0002] The motor stator assembly mainly includes the stator core, on which hairpins are set to form flat wire windings. After the hairpins are inserted into the stator core, they need to be twisted in one direction. During twisting, the root of the hairpin needs to be protected. Therefore, a special device is needed to protect the hairpins from deformation during the twisting process. The added device has a complex structure, is troublesome to operate, increases production costs, and reduces production efficiency. Utility Model Content

[0003] The technical problem to be solved by this utility model is: in order to solve the problem that the existing method requires protection of the hairpin root during twisting, which requires a special device to protect the hairpin from deformation during twisting, the added device has a relatively complex structure, is troublesome to operate, increases production costs, and reduces production efficiency. Now, an insulation structure for both ends of the stator core is provided.

[0004] The technical solution adopted by this utility model to solve its technical problem is: an insulation structure at both ends of a stator core, including a stator core and an insulating plate for protecting the flat wire winding and providing insulation. The insulating plates are provided at both ends of the stator core and abut against each other. Multiple wire slots are evenly arranged along the circumference of the stator core. Through holes corresponding to the wire slots are opened on the insulating plates. The required hairpins are inserted into the multiple wire slots to form flat wire windings. Compared with the prior art, this solution does not require additional equipment to support the installation of hairpins and the stator core. Instead, by installing insulating plates at both ends of the stator core, the insulating plates protect the flat wires at both ends of the stator core and provide insulation, greatly reducing production costs. At the same time, placing the insulating plates at both ends of the stator core is simple and greatly improves production efficiency.

[0005] To better protect the flat wire, in some preferred embodiments, the cross-section of the through hole matches the shape of the wire groove and has a square structure, and the cross-sectional area of ​​the through hole is greater than or equal to the cross-sectional area of ​​the wire groove. By setting the cross-sectional shape of the through hole to correspond to the shape and orientation of the wire groove, the insulating board is more suitable for protecting the flat wire.

[0006] To better match the stator core, in some preferred embodiments, the insulating plate has a ring structure, the stator core has a ring mechanism, the diameter of the inner ring of the insulating plate is greater than or equal to the diameter of the inner ring of the stator core, and the diameter of the outer ring of the insulating plate is less than or equal to the diameter of the outer ring of the stator core. By setting the insulating plate to a ring shape, the overall shape matches the stator core, without changing the overall structural shape of the stator assembly.

[0007] In some preferred embodiments, the aperture of the inner ring of the insulating plate is larger than the aperture of the inner ring of the stator core, and the aperture of the outer ring of the insulating plate is smaller than the aperture of the outer ring of the stator core.

[0008] In some preferred embodiments, the stator core is composed of multiple layers of silicon steel sheets stacked on top of each other.

[0009] The beneficial effects of this utility model are as follows: When using the insulation structure at both ends of the stator core, this utility model eliminates the need for additional equipment to support the installation of the hairpin and the stator core. Instead, by installing insulating plates at both ends of the stator core, the insulating plates protect the flat wires at both ends of the stator core and provide insulation, significantly reducing production costs. Furthermore, placing the insulating plates at both ends of the stator core is simple and greatly improves production efficiency. It avoids the problems of existing methods that require protecting the hairpin root during twisting, necessitating the addition of a separate device to protect the hairpin from deformation during twisting. Such additional equipment is complex, cumbersome to operate, increases production costs, and reduces production efficiency. Attached Figure Description

[0010] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0011] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0012] Figure 2 This is the front view of this utility model;

[0013] Figure 3 This is the left view of this utility model;

[0014] Figure 4 This is the right view of this utility model.

[0015] In the diagram: 1. Stator core; 101. Cable groove;

[0016] 2. Insulating board, 201. Through hole. Detailed Implementation

[0017] The present invention will be further described in detail below with reference to the embodiments:

[0018] This utility model is not limited to the following specific embodiments. Those skilled in the art can implement this utility model using various other specific embodiments based on the disclosed content. Any modifications or alterations to the design structure and concept of this utility model also fall within the protection scope of this utility model. It should be noted that, unless otherwise specified, the embodiments and features described in this utility model can be combined with each other.

[0019] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0020] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0021] like Figure 1-4 As shown, an insulation structure at both ends of a stator core includes a stator core 1 and an insulation plate 2. The insulation plate 2 is used to protect the flat wire winding and to provide insulation. The above-mentioned insulation plate 2 is provided at both ends of the stator core 1 and they abut against each other. The stator core 1 is composed of multiple layers of silicon steel sheets stacked on each other. Multiple wire slots 101 are evenly arranged along the circumference of the stator core 1. Through holes 201 corresponding to the wire slots 101 are opened on the insulation plate 2. The required hairpins are inserted into the multiple wire slots 101 to form flat wire windings.

[0022] The cross-section of the through hole 201 matches the shape of the wire groove 101 and is a square structure. In this embodiment, the cross-sectional area of ​​the through hole 201 is greater than the cross-sectional area of ​​the wire groove 101, or the cross-sectional area of ​​the through hole 201 can be equal to the cross-sectional area of ​​the wire groove 101.

[0023] The insulating plate 2 has a ring structure, and the stator core 1 has a ring mechanism. In this embodiment, the diameter of the inner ring of the insulating plate 2 is larger than the diameter of the inner ring of the stator core 1, and the diameter of the outer ring of the insulating plate 2 is smaller than the diameter of the outer ring of the stator core 1. Alternatively, the diameter of the inner ring of the insulating plate 2 can be equal to the diameter of the inner ring of the stator core 1, and the diameter of the outer ring of the insulating plate 2 can also be equal to the diameter of the outer ring of the stator core 1, or the diameter of the inner ring of the insulating plate 2 can be larger than the diameter of the inner ring of the stator core 1, and the diameter of the outer ring of the insulating plate 2 can be equal to the diameter of the outer ring of the stator core 1, or the diameter of the inner ring of the insulating plate 2 can be equal to the diameter of the inner ring of the stator core 1, and the diameter of the outer ring of the insulating plate 2 can be smaller than the diameter of the outer ring of the stator core 1.

[0024] When assembling the above-mentioned insulation structure at both ends of the stator core, the insulation plate 2 is first placed at both ends of the stator core 1, and the through hole 201 is aligned with the wire groove 101 on the stator core 1. Then, the hairpins are inserted into the corresponding wire groove 101 on the stator core 1 in sequence to form a flat wire winding.

[0025] Insulating plate 2 provides insulation protection for the roots at both ends of the hairpin, eliminating the need for additional root protection devices at both ends of the stator core 1. Insulating plate 2 has a simple structure and low operating cost. The assembly of insulating plate 2 and stator core 1 is seamless, improving production efficiency.

[0026] The above description, based on the preferred embodiments of this utility model, provides inspiration. Those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification but must be determined according to the claims.

Claims

1. An insulation structure at both ends of a stator core, comprising a stator core (1), characterized in that: It also includes an insulating plate (2) for protecting the flat wire winding and providing insulation. The stator core (1) is provided with the above-mentioned insulating plate (2) at both ends and they abut against each other. Multiple wire slots (101) are evenly arranged on the circumference of the stator core (1). The insulating plate (2) is provided with through holes (201) corresponding to the wire slots (101). The required hairpins are inserted into the multiple wire slots (101) to form flat wire windings.

2. The insulation structure at both ends of a stator core according to claim 1, characterized in that: The cross-section of the through hole (201) matches the shape of the groove (101) and is a square structure. The cross-sectional area of ​​the through hole (201) is greater than or equal to the cross-sectional area of ​​the groove (101).

3. The insulation structure at both ends of a stator core according to claim 1, characterized in that: The insulating plate (2) has a ring structure, and the stator core (1) has a ring mechanism. The diameter of the inner ring of the insulating plate (2) is greater than or equal to the diameter of the inner ring of the stator core (1), and the diameter of the outer ring of the insulating plate (2) is less than or equal to the diameter of the outer ring of the stator core (1).

4. The insulation structure at both ends of a stator core according to claim 3, characterized in that: The inner ring of the insulating plate (2) has a larger aperture than the inner ring of the stator core (1), and the outer ring of the insulating plate (2) has a smaller aperture than the outer ring of the stator core (1).

5. The insulation structure at both ends of a stator core according to claim 1, characterized in that: The stator core (1) is composed of multiple layers of silicon steel sheets stacked on top of each other.

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