Stator spliced framework

Abstract

The utility model relates to motor manufacturing technical field, concretely discloses a kind of stator spliced framework, including inner ring, iron core, the iron core is provided with several according to tooth type, and its overall encircles and is formed a stator core;The outer periphery of the inner ring is assembled and locked according to tooth type with each iron core, and the top of each iron core is equipped with insulating upper framework, and the bottom of each iron core is equipped with insulating lower framework.The scheme of the utility model, compared with conventional stator core, this assembly structure can facilitate motor winding on the iron core, winding after assembly can realize automatic winding, and it is simple to manufacture.

Description

Technical Field

[0001] This utility model relates to the field of motor manufacturing technology, and in particular to a stator splicing frame. Background Technology

[0002] In motor manufacturing, traditional stator core assemblies, including both the stator core and the upper and lower frame sections, employ a monolithic structure. While this structure facilitates later motor assembly, it presents significant challenges in manufacturing the motor windings. Specifically: due to the narrow slots in some cores, automated winding is extremely difficult, and misalignment can lead to winding failure; furthermore, in monolithic forging manufacturing, an impact in one slot can affect all stacked core assemblies, resulting in scrap and material waste; additionally, it is difficult to achieve the process defects of flat wire windings and concentrated windings. Therefore, this monolithic stator core structure has numerous problems and is only suitable for production and assembly when the slots are large. Utility Model Content

[0003] The purpose of this invention is to provide a stator splicing frame to solve the problems encountered in the above-mentioned background art.

[0004] To achieve the above objectives, the technical solution of this utility model is as follows: A stator splicing frame includes an inner ring and iron cores. Several iron cores are arranged according to a tooth pattern, and the whole frame is arranged to form a stator iron core. The outer periphery of the inner ring is spliced ​​and locked with each iron core according to the tooth pattern. An insulating upper frame is installed on the top of each iron core, and an insulating lower frame is installed on the bottom of each iron core.

[0005] In the above scheme, the outer circumference of the inner ring is provided with several dovetail grooves in a toothed pattern, and the inner side of each iron core is provided with a dovetail boss that mates with the dovetail grooves. The inner ring is assembled with the iron core through the cooperation of the dovetail grooves and the dovetail bosses. The inner ring contains at least one key.

[0006] In the above scheme, the dovetail grooves in the entire inner ring are provided with first semicircular holes at intervals, and the dovetail bosses in the assembled iron core are provided with second semicircular holes at intervals. The first and second semicircular holes are assembled to form a screw mounting hole. The mounting surface of the inner ring is provided with a fixing ring, which is inserted into the other side of the screw mounting hole by a screw.

[0007] In the above scheme, the iron core includes a core body, the core body has heat dissipation grooves on both sides, the dovetail boss is integrally provided on the rear side of the core body, and the front side of the core body has an arc surface.

[0008] In the above scheme, the upper frame and lower frame have the same structure, forming a symmetrical structure when the upper and lower parts of the iron core are installed. The upper frame includes a card box and side guard plates. A rear baffle is connected to the rear of the card box, and a front baffle is connected to the front of the card box. The side guard plates are installed on both sides of the card box and connect the rear baffle and the front baffle. A heat dissipation groove is formed on the upper part of the front baffle, and there is at least one heat dissipation groove.

[0009] Compared with existing technologies, the advantages of this invention are as follows: the outer circumference of the inner ring is assembled and locked with each iron core according to the tooth pattern, while the conventional stator iron core is a one-piece design. Compared with the conventional stator iron core, this assembly structure facilitates the winding of the motor windings on the iron core. Winding before assembly enables automated winding and simplifies manufacturing. For insulation, an insulating upper frame is installed at the top of each iron core, and an insulating lower frame is installed at the bottom of each iron core. By designing the upper and lower frames as insulating materials, compared with existing frames, it is easier and more accurate to align each iron core, and there is no need to insert insulating paper. The insulating frame directly forms insulation, eliminating the need for traditional insulating paper insertion, simplifying the process, and increasing reliability. Attached Figure Description

[0010] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts. Wherein: Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 for Figure 1 A schematic diagram of the bottom structure; Figure 3 for Figure 1 Top view; Figure 4 This is a schematic diagram of the internal structure of the present invention; Figure 5 This is a schematic diagram of the inner ring structure in this utility model; Figure 6 This is a schematic diagram of the iron core structure in this utility model; Figure 7 This is a schematic diagram of the upper frame structure in this utility model; Figure 8 for Figure 7 A schematic diagram of the bottom structure.

[0011] Numbering in the diagram: 1-Inner ring; 11-Pin key; 12-Fixing ring; 13-Screw; 14-Dovetail groove; 15-First semi-circular hole; 2-Iron core; 21-Core body; 22-Heating groove; 23-Dovetail boss; 24-Second semi-circular hole; 3-Upper frame; 31-Card holder; 32-Rear baffle; 33-Front baffle; 34-Side guard plate; 35-Heating groove; 4-Lower frame. Detailed Implementation

[0012] To make the technical means, creative features, achieved objectives and effects of this utility model easier to understand, the utility model will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of this utility model, and therefore only show the relevant components of this utility model.

[0013] Based on the technical solution of this utility model, without changing the essential spirit of this utility model, those skilled in the art can propose various interchangeable structural methods and implementation methods. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model, and should not be regarded as the entirety of this utility model or as a limitation or restriction of the technical solution of this utility model.

[0014] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0015] Example 1, as Figure 1-4 As shown, a stator splicing frame includes an inner ring 1 and an iron core 2. The iron core 2 is provided with several teeth in a toothed pattern, and the whole frame is arranged to form a stator iron core. The stator iron core is assembled into a circular structure, which improves the utilization rate of materials.

[0016] The outer circumference of the inner ring 1 is assembled and locked with each iron core 2 according to the tooth shape, while the conventional stator iron core is an integral design. Compared with the conventional stator iron core, this assembly structure makes it easier for the motor winding to be wound on the iron core 2. The winding can be automated and the assembly can be completed after the winding is completed. It is simple to manufacture.

[0017] To achieve insulation, an insulating upper frame 3 is installed on the top of each iron core 2, and an insulating lower frame 4 is installed on the bottom of each iron core 2. By designing the upper frame 3 and the lower frame 4 as insulating materials, it is easier and more accurate to align each iron core 2 compared with existing frames. Furthermore, it eliminates the need to insert insulating paper, as the insulating frame directly forms insulation, simplifying the process and ensuring high reliability.

[0018] Specifically, please refer to Figure 5 and Figure 6The outer circumference of the inner ring 1 is provided with several dovetail grooves 14 arranged in a toothed pattern. Each iron core 2 has a dovetail boss 23 on its inner side that mates with the dovetail grooves 14. The inner ring 1 is assembled with the iron core 2 through the cooperation of the dovetail grooves 14 and the dovetail bosses 23. Each unit has a dovetail groove-type connection structure and an integrated interlocking and positioning structure, which can effectively assemble each iron core 2 onto the outer circumference of the inner ring 1. As a preferred embodiment, at least one pin 11 is provided in the inner ring of the inner ring 1, through which the stator assembly frame is installed inside the motor.

[0019] In the entire inner ring 1, the dovetail groove 14 is provided with a first semi-circular hole 15 at intervals. In the entire assembled iron core 2, the dovetail boss 23 is provided with a second semi-circular hole 24 at intervals. The first semi-circular hole 15 and the second semi-circular hole 24 are assembled to form a screw mounting hole. The mounting surface of the inner ring 1 is provided with a fixing ring 12. The fixing ring 12 passes through the screw 13 and enters the other side of the screw mounting hole, thereby facilitating the fixing of the entire stator assembly frame to the motor by means of the screw 13.

[0020] Example 2, based on the solution of Example 1, please refer to... Figure 6 The iron core 2 includes a core body 21. The core body 21 has heat dissipation grooves 22 on both sides. The stator winding is wound on the heat dissipation grooves 22 to form the motor coil. The dovetail boss 23 is integrally set on the rear side of the core body 21. The front side of the core body 21 has an arc surface to cooperate with the internal circular cavity of the motor.

[0021] Example 3, based on the solution of Example 1, please refer to... Figure 7 and Figure 8 The upper frame 3 and the lower frame 4 have the same structure, forming a symmetrical structure when installed on the upper and lower parts of the iron core 2. This also facilitates simultaneous manufacturing, as it can be completed with a single injection molding process using both upper and lower molds.

[0022] Since the two frame structures are identical, only the structure of the upper frame 3 will be described here for ease of implementation. The upper frame 3 includes a card holder 31 and side guard plates 34. A rear baffle 32 is connected to the rear of the card holder 31, and a front baffle 33 is connected to the front of the card holder 31. The rear baffle 32 shields the rear side of the iron core 21 for insulation, and the front baffle 33 shields the front side of the iron core 21 for insulation. The side guard plates 34 are installed on both sides of the card holder 31 and connect to the rear baffle 32 and the front baffle 33, providing insulation shielding for the upper and lower parts of the core 21 on both sides.

[0023] In addition, as a preferred embodiment, the upper part of the front baffle 33 is provided with a heat dissipation groove 35, and there is at least one heat dissipation groove 35, which can be designed as follows: Figure 8 The two shown are mainly used to increase the area for heat dissipation through multiple heat dissipation slots 35 when the motor generates heat during operation, so as to keep the iron core 2 in a stable operating environment.

[0024] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above description is only a specific embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A stator splicing frame, characterized in that: It includes an inner ring (1) and an iron core (2). The iron core (2) is provided with several teeth, and the whole ring surrounds to form a stator iron core. The outer periphery of the inner ring (1) is assembled and locked with each iron core (2) according to the teeth. An insulating upper frame (3) is installed on the top of each iron core (2), and an insulating lower frame (4) is installed on the bottom of each iron core (2).

2. The stator splicing frame according to claim 1, characterized in that: The outer periphery of the inner ring (1) is provided with a number of dovetail grooves (14) in the shape of teeth. The inner side of each iron core (2) is provided with a dovetail boss (23) that cooperates with the dovetail grooves (14). The inner ring (1) is assembled with the iron core (2) through the cooperation of the dovetail grooves (14) and the dovetail boss (23).

3. A stator splicing frame according to claim 2, characterized in that: In the entire inner ring (1), the dovetail groove (14) is provided with a first semicircular hole (15) at intervals. In the entire assembled iron core (2), the dovetail boss (23) is provided with a second semicircular hole (24) at intervals. The first semicircular hole (15) and the second semicircular hole (24) are assembled to form a screw mounting hole.

4. A stator splicing frame according to claim 3, characterized in that: The mounting surface of the inner ring (1) is provided with a fixing ring (12), and the fixing ring (12) is inserted into the other side of the screw mounting hole through a screw (13).

5. A stator splicing frame according to claim 1, characterized in that: The inner ring (1) has at least one key (11).

6. A stator splicing frame according to claim 2, characterized in that: The iron core (2) includes a core body (21), with heat dissipation grooves (22) on both sides of the core body (21), and a dovetail boss (23) integrally disposed on the rear side of the core body (21), and an arc surface on the front side of the core body (21).

7. A stator splicing frame according to claim 1, characterized in that: The upper frame (3) and the lower frame (4) have the same structure and are symmetrical when the upper and lower parts of the iron core (2) are installed.

8. A stator splicing frame according to claim 7, characterized in that: The upper frame (3) includes a card box (31) and a side guard plate (34). The rear part of the card box (31) is connected to a rear baffle (32), and the front part of the card box (31) is connected to a front baffle (33). The side guard plate (34) is installed on both sides of the card box (31) and connects the rear baffle (32) and the front baffle (33).

9. A stator splicing frame according to claim 8, characterized in that: The upper part of the front baffle (33) is provided with a heat dissipation groove (35), and there is at least one heat dissipation groove (35).

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