A stator insulation frame and motor

Abstract

This utility model discloses a stator insulation frame and a motor. The stator insulation frame includes: a first frame member, assembled at one end of the stator core and extending with a first extension portion that passes through a stator slot at one end of the stator core; and a second frame member, assembled at the other end of the stator core and extending with a second extension portion that passes through a stator slot; wherein the first extension portion and the second extension portion are connected to each other within the stator slot. The stator insulation frame of this application is simple to assemble and has better insulation performance.

Description

Technical Field

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

[0002] The stator insulation frame is a crucial component of an electric motor, primarily used in stepper motors, servo motors, and brushless motors. It plays a vital role in isolating the enameled wire and stator laminations, providing insulation and withstand voltage, and supporting the winding of the enameled wire. The design of the stator insulation frame can vary depending on the type of motor and specific requirements, such as the outer diameter, slot type, number of slots, and wiring method. Existing stator insulation frames mainly consist of upper and lower insulating frames and an insulating paper sheet forming a closed-loop insulating annular slot on the stator for winding. This type of frame has relatively poor insulation performance, and the insulating paper sheet requires cutting, folding, and shaping during assembly, which is time-consuming and labor-intensive. Utility Model Content

[0003] This utility model provides a stator insulation frame and a motor, which solves the problems of poor insulation performance and inconvenient assembly of existing stator insulation frames.

[0004] In a first aspect, this utility model provides a stator insulation frame, comprising: a first frame member, which is assembled at one end of the stator core and extends to be inserted into a stator slot; and a second frame member, which is assembled at the other end of the stator core and extends to be inserted into a stator slot; wherein the first extension and the second extension are connected to each other in two adjacent stator slots.

[0005] In the stator insulation frame provided in this embodiment of the utility model, both the first extension and the second extension include a first insulation segment and a second insulation segment arranged at intervals, and the first insulation segment and the second insulation segment are respectively inserted into two adjacent stator slots of the stator core.

[0006] In the stator insulation frame provided in this embodiment of the present invention, the first insulation segment and the second insulation segment have different lengths along the axial direction of the stator core.

[0007] In the stator insulation frame provided in this embodiment of the present invention, the length of the first insulating segment of the first extension is equal to the length of the second insulating segment of the second extension, and the length of the second insulating segment of the first extension is equal to the length of the first insulating segment of the second extension.

[0008] In the stator insulation frame provided in this embodiment of the utility model, both the first insulation section and the second insulation section include an inner insulation plate, an outer insulation plate and a middle insulation plate. The inner insulation plate and the outer insulation plate are connected to both sides of the middle insulation plate. The side of the middle insulation plate matches the groove wall of the stator slot in the circumferential direction of the stator core. The side of both the inner insulation plate and the outer insulation plate matches the two opposite groove walls of the stator slot in the radial direction of the stator core.

[0009] In the stator insulating frame provided in this embodiment of the present invention, the first extension is provided with a first step portion at the end away from the first frame member, and the second extension is provided with a second step portion at the end away from the first frame member, and the first step portion and the second step portion fit together.

[0010] In the stator insulation frame provided in this embodiment of the utility model, the first frame member and the second frame member both include an inner baffle, an outer baffle and a base. The base is in contact with the end face between two adjacent stator slots of the stator core. The inner baffle and the outer baffle are arranged at radial intervals on both sides of the base along the stator core. The first extension and the second extension are connected to the base.

[0011] In the stator insulation frame provided in this embodiment of the utility model, the inner baffle is provided with a first protrusion protruding radially inward toward the stator core, and the outer baffle is provided with a second protrusion protruding radially outward toward the stator core. Both the first protrusion and the second protrusion abut against the end face of the stator core.

[0012] In the stator insulation frame provided in this embodiment of the utility model, a recessed clearance groove is provided on the side of the base that matches the end face of the stator core.

[0013] Secondly, this utility model provides an electric motor that includes the stator insulation frame described in the first aspect above.

[0014] This utility model embodiment provides a stator insulation frame and a motor. The stator insulation frame is assembled at both ends of the motor stator core using a first frame member and a second frame member. The first frame member is inserted into the stator slot at one end of the stator core through a first extension, and the second frame member is inserted into the stator slot at the other end of the stator core through a second extension. The first extension and the second extension are joined together in the stator slots of the stator core to enclose the stator teeth between the two stator slots, thereby realizing the assembly of the insulation frame. The assembly is simple and the insulation performance is better. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 An exploded view of the stator insulation frame and stator core assembly provided for an embodiment of this utility model;

[0017] Figure 2 An assembly drawing of the stator insulation frame and stator core provided for an embodiment of this utility model;

[0018] Figure 3 An assembly drawing of the first skeleton component provided in an embodiment of this utility model;

[0019] Figure 4 A cross-sectional view of the stator insulation frame in an exploded state provided in an embodiment of this utility model;

[0020] Figure 5 A cross-sectional view of the stator insulation frame in its assembled state as provided in an embodiment of this utility model;

[0021] Figure 6 for Figure 5 Enlarged view of part A;

[0022] Figure 7 for Figure 5 Enlarged view of part B;

[0023] Figure 8 A cross-sectional view of the first skeleton member provided in an embodiment of this utility model;

[0024] Figure 9 A perspective view of the first skeleton member provided in an embodiment of this utility model;

[0025] Figure 10 A side view of the first skeleton member provided in an embodiment of this utility model;

[0026] Figure 11 for Figure 5 Enlarged view of part C;

[0027] The labels for the attached figures are as follows:

[0028] 1. First skeleton component; 2. Second skeleton component; 10. First extension; 20. Second extension; 101. First insulating section; 102. Second insulating section; 1001. Inner insulating plate; 1002. Outer insulating plate; 1003. Intermediate insulating plate; 21. Base; 22. Inner baffle; 2201. First protrusion; 23. Outer baffle; 2301. Second protrusion; 201. Clearance groove; 3. First step; 4. Second step; 5. Stator core; 501. Stator slot; 502. Stator tooth; 6. Winding slot. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0030] The directional terms used in this invention, such as "up," "down," "front," "back," "left," "right," "inner," "outer," and "side," are merely for reference to the accompanying drawings. Therefore, the directional terms used are for explanation and understanding of this invention, and not for limiting it. Furthermore, in the accompanying drawings, structures that are similar or identical are indicated by the same reference numerals.

[0031] Reference Figures 1 to 11 For details, please refer to Figure 1 and Figure 2 This invention illustrates an embodiment of the stator insulation frame and motor provided by this utility model. The structure and working principle of the motor insulation frame will be described in detail below with reference to the accompanying drawings. Figure 1 As shown, the stator insulation frame includes: a first frame member 1, which is assembled at one end of the stator core 5 and extends to be inserted into the stator slot 501; and a second frame member 2, which is assembled at the other end of the stator core 5 and extends to be inserted into the stator slot 501; wherein the first extension 10 and the second extension 20 are connected to each other in two adjacent stator slots 501.

[0032] In practice, a certain number of stator insulation frames need to be assembled into the motor, the specific number being the same as the number of stator teeth or stator slots. Each insulation frame provides insulation coverage for one stator tooth 502. For example... Figure 1As shown, in this embodiment, each stator insulation frame may include a first frame member 1 and a second frame member 2, both of which are designed to be made of insulating material. The first frame member 1 is assembled at one end of the stator core 5, and the second frame member 2 is assembled at the other end of the stator core 5, that is, the first frame member 1 and the second frame member 2 are respectively assembled at the two ends of the motor stator core 5 in the axial direction. The first skeleton member 1 extends into two adjacent stator slots 501 at one end of the stator core 5, and the second skeleton member 2 extends into two adjacent stator slots 501 at the other end of the stator core 5, with a second extension 20 inserted into the same stator slot 501. The stator slots 501 at both ends of the stator core 5 with the first extension 10 and the second extension 20 extended into the same stator slot 501. The first extension 10 is the part of the first skeleton member 1 that extends axially in the stator core 5, and the second extension 20 is the part of the second skeleton member 2 that extends axially in the stator core 5. The first extension 10 and the second extension 20 extend toward each other and connect with each other in two adjacent stator slots 501 of the stator core 5, thereby enclosing the stator teeth 502 between the two adjacent stator slots 501 of the stator core 5 to form a closed loop for use in power motor winding. In practical applications, two adjacent stator slots 501 of the stator core 5 are selected, and the first skeleton member 1 and the second skeleton member 2 are respectively assembled to the two ends of the stator core 5, so that the first extension 10 of the first skeleton member 1 and the second extension 20 of the second skeleton member 2 are connected in the two stator slots 501, thus enclosing the stator teeth 502 between the two stator slots 501 and completing the assembly. Multiple insulating skeletons are installed sequentially in the circumferential direction of the stator core 5, with each pair of insulating skeletons sharing one stator slot 501. This allows all the stator teeth 502 of the stator core 5 to be enclosed individually, achieving assembly. Compared with the traditional method of assembling the insulating skeleton with skeletons at both ends and insulating paper, the first skeleton member 1 and the second skeleton member 2 assembled at both ends of the stator insulating skeleton in this embodiment are integrally formed, eliminating the need for insulating paper, making assembly simple and convenient, and providing better insulation performance.

[0033] In one embodiment, reference is made to Figure 1 , Figure 4 as well as Figure 5Both the first extension 10 and the second extension 20 include a first insulating section 101 and a second insulating section 102 spaced apart. The first insulating section 101 and the second insulating section 102 are respectively inserted into two adjacent stator slots 501 of the stator core 5. In specific implementation, both the first extension 10 and the second extension 20 are composed of two parts: the first insulating section 101 and the second insulating section 102. The two parts are spaced apart, and the first insulating section 101 and the second insulating section 102 are respectively inserted into two adjacent stator slots 501 of the stator core 5. That is, in actual assembly, two stator slots 501 on the stator core 5 are selected, the first insulating section 101 is inserted into one stator slot 501, and the second insulating section 102 is inserted into the other stator slot 501. The first insulating segment 101 of the first extension 10 and the second insulating segment 102 of the second extension 20 are joined together in one of the stator slots 501, and the second insulating segment 102 of the first extension 10 and the first insulating segment 101 of the second extension 20 are joined together in the other stator slot 501, thereby enclosing the stator teeth 502 between the two stator slots 501. The lengths of the first insulating segment 101 and the second insulating segment 102 are not limited; they can be designed to be equal or unequal.

[0034] Furthermore, referring to Figure 4 and Figure 5 The first insulating segment 101 and the second insulating segment 102 have different lengths along the axial direction of the stator core 5. Specifically, the lengths of the first insulating segment 101 and the second insulating segment 102 along the axial direction of the stator core 5 are designed to be unequal. This can be either a greater length for the first insulating segment 101 than for the second insulating segment 102, or a shorter length for the first insulating segment 101 than for the second insulating segment 102. By designing the lengths of the first insulating segment 101 and the second insulating segment 102 unequal along the axial direction of the stator core 5, the connection strength between the first skeleton member 1 and the second skeleton member 2 can be improved, preventing the insulating skeleton from loosening during the winding process.

[0035] Furthermore, referring to Figure 4 and Figure 5The length of the first insulating segment 101 of the first extension 10 is equal to the length of the second insulating segment 102 of the second extension 20, and the length of the second insulating segment 102 of the first extension 10 is equal to the length of the first insulating segment 101 of the second extension 20. In a specific implementation, the length of the first insulating segment 101 of the first extension 10 is designed to be equal to the length of the second insulating segment 102 of the second extension 20, and the length of the second insulating segment 102 of the first extension 10 is designed to be equal to the length of the first insulating segment 101 of the second extension 20. This allows the first skeleton member 1 and the second skeleton member 2 to form a centrally symmetrical structure, improving the docking strength between the first skeleton member 1 and the second skeleton member 2 while making the overall stress distribution of the skeleton more balanced and enhancing the stability of the docking.

[0036] In one embodiment, reference is made to Figure 8 , Figure 9 , Figure 10The first insulating section 101 and the second insulating section 102 each include an inner insulating plate 1001, an outer insulating plate 1002 and an intermediate insulating plate 1003. The inner insulating plate 1001 and the outer insulating plate 1002 are connected to both sides of the intermediate insulating plate 1003. The side of the intermediate insulating plate 1003 matches the groove wall of the stator slot 501 of the stator core 5 in the circumferential direction. The side of both the inner insulating plate 1001 and the outer insulating plate 1002 matches the two opposite groove walls of the stator slot 501 of the stator core 5 in the radial direction. In specific implementation, both the first insulation section 101 and the second insulation section 102 can be composed of three parts: an inner insulation plate 1001, an outer insulation plate 1002, and an intermediate insulation plate 1003. The inner insulation plate 1001 and the outer insulation plate 1002 are connected to both sides of the intermediate insulation plate 1003. The inner insulation plate 1001 and the outer insulation plate 1002 can be used to pass through the winding wires of the motor. The side of the intermediate insulation plate 1003 matches the slot wall of the stator slot 501 of the stator core 5 in the circumferential direction, so that it can fit against the slot wall of the stator slot 501 in the circumferential direction of the stator core 5, forming an insulating cover for the slot wall of the stator slot 501 in the circumferential direction of the stator core 5. The sides of the inner insulating plate 1001 and the outer insulating plate 1002 respectively match the radially opposite slot walls of the stator slot 501 of the stator core 5. The side of the inner insulating plate 1001 can adhere to the slot wall of the stator slot 501 near the radially inner side of the stator core 5, and the side of the outer insulating plate 1002 can adhere to the slot wall of the stator slot 501 near the radially outer side of the stator core 5, forming an insulating cover for the radially opposite slot walls of the stator core 5 and the stator slot 501. Overall, the inner insulating plate 1001, the outer insulating plate 1002, and the intermediate insulating plate 1003, through matching with the slot walls of the stator slot 501, completely wrap the two sides of the stator teeth 502 between two adjacent stator slots 501, forming a comprehensive insulating cover and improving insulation performance.

[0037] In one embodiment, reference is made to Figures 4 to 7 The first extension 10 has a first step 3 at the end away from the first frame member, and the second extension 20 has a second step 4 at the end away from the first frame member. The first step 3 and the second step 4 fit together. In a specific implementation, the first extension 10 has a first step 3 at the end away from the first frame member 1, and the second extension 20 has a second step 4 at the end away from the second frame member 2. Both the first step 3 and the second step 4 are stepped structures with one high and one low step surface. The first step 3 and the second step 4 fit together, thereby making the first extension 10 and the second extension 20 stably connected to each other, improving the overall splicing strength and stability of the stator insulation frame.

[0038] In one embodiment, reference is made to Figure 2 , Figure 9 , Figure 10 Both the first frame member 1 and the second frame member 2 include an inner baffle 22, an outer baffle 23, and a base 21. The base 21 is fitted with the end face between two adjacent stator slots 501 of the stator core 5. The inner baffle 22 and the outer baffle 23 are arranged radially on both sides of the base 21 along the stator core 5. The first extension 10 is connected to the base 21 of the first frame member 1, and the second extension 20 is connected to the base 21 of the second frame member 2. In a specific implementation, both the first frame member 1 and the second frame member 2 can be composed of an inner baffle 22, an outer baffle 23, and a base 21. The base 21 is assembled on the end face between two adjacent stator slots 501 of the adjacent stator core 5 and is fitted with the end face between the two adjacent stator slots 501 of the stator core 5. The first extension 10 and the second extension 20 are connected to the base 21. The first extension 10 and the second extension 20 are kept stable by the fit between the base 21 and the end face of the stator core 5. The inner baffle 22 and the outer baffle 23 are arranged at both ends of the base 21 along the radial distance of the stator core 5. The part between the inner baffle 22 and the outer baffle 23 can be used to pass the winding wire of the motor. A winding groove 6 for winding is provided on the outer baffle 23. The winding groove 6 includes a winding start groove and a winding end groove, which can be used for winding.

[0039] Furthermore, referring to Figure 9 and Figure 10 The inner baffle 22 has a first protrusion 2201 protruding radially inward toward the stator core 5, and the outer baffle 23 has a second protrusion 2301 protruding radially outward toward the stator core 5. Both the first protrusion 2201 and the second protrusion 2301 abut against the end face of the stator core 5. In a specific implementation, the first protrusion 2201 protruding radially inward toward the stator core 5 and the second protrusion 2301 protruding radially outward toward the stator core 5, with the first protrusion 2201 and the second protrusion 2301 abutting against the end face of the stator core 5, provide more support for the base 21, thereby improving structural strength and stability.

[0040] Furthermore, referring to Figure 5 and Figure 11 The base 21 has a recessed clearance groove 201 on the side that mates with the end face of the stator core 5. Specifically, the clearance groove 201 is a recessed groove structure on the side of the base 21 that mates with the stator core 5. Typically, during production, the stator core 5 is riveted together with its laminations, leaving rivet points on the end face of the stator core 5. The clearance groove 201 is mainly used to avoid obstructing these rivet points on the end face of the stator core 5. In practical applications, the position of the clearance groove 201 is set according to the actual rivet point positions of the stator core 5.

[0041] The stator insulation frame provided in this application embodiment is assembled at both ends of the motor stator core using a first frame member and a second frame member. The first frame member is inserted into the stator slot at one end of the stator core through a first extension, and the second frame member is inserted into the stator slot at the other end of the stator core through a second extension. The first extension and the second extension are joined together in the stator slots of the stator core to enclose the stator teeth between the two stator slots, thereby realizing the assembly of the insulation frame. The assembly is simple and the insulation performance is better.

[0042] This application also provides an electric motor, which includes the stator insulation frame provided in the above embodiments. In addition, the motor may include components such as a housing, stator, and rotor. The stator of the motor mainly consists of a stator core and windings. The stator insulation frame is mainly assembled on the stator core of the motor and works in conjunction with the windings to provide insulation, support, and fixation. Since the specific structure and working principle of the stator insulation frame have been described in detail in the preceding description, they will not be repeated here for the sake of brevity.

[0043] The motor in this embodiment uses the stator insulation frame provided in the above embodiment, which makes the motor assembly simpler and more convenient. The stator insulation frame has better insulation performance than the traditional frame, and the overall performance of the motor is higher.

[0044] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this utility model, and these modifications or substitutions should all be covered within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A stator insulating former, characterized by, The application relates to a stator insulation skeleton. The application relates to a stator insulation skeleton. The application relates to a stator insulation skeleton. The application relates to a stator insulation skeleton.

2. The stator insulating former according to claim 1, characterized in that, The application relates to a stator insulation skeleton.

3. The stator insulating former according to claim 2, characterized in that The application relates to a stator insulation skeleton.

4. The stator insulating former according to claim 3, characterized in that The application relates to a stator insulation skeleton.

5. The stator insulating former of claim 2, wherein The application relates to a stator insulation skeleton.

6. The stator insulating former according to any one of claims 1 to 5, characterized in that The application relates to a stator insulation skeleton.

7. The stator insulating former according to any one of claims 1 to 5, characterized in that The application relates to a stator insulation skeleton.

8. The stator insulating former according to claim 7, characterized in that The application relates to a stator insulation skeleton.

9. The stator insulating former according to claim 8, characterized in that The application relates to a stator insulation skeleton.

10. An electric machine characterized by The application relates to a stator insulation skeleton. The application relates to a stator insulation skeleton. The application relates to a stator insulation skeleton. The application relates to a stator insulation skeleton. The application relates to a stator insulation skeleton. The application relates to a stator insulation skeleton. The application relates to a stator insulation skeleton. The application relates to a stator insulation skeleton. The application relates to a stator insulation skeleton. The application relates to a stator insulation skeleton. The application relates to a stator insulation skeleton. The application relates to a stator insulation skeleton. The application relates to a stator insulation skeleton. The application relates to a stator insulation skeleton. The application relates to a stator insulation skeleton. The application relates to a stator insulation skeleton. The application relates to a stator insulation skeleton. The application relates to a stator insulation skeleton. The application relates to a stator insulation skeleton. The application relates to a stator insulation skeleton. The application relates to a stator insulation skeleton. The application relates to a stator insulation skeleton. The application relates to a stator insulation skeleton. The application relates to a stator insulation skeleton. The application relates to a stator insulation skeleton. The application relates to a stator insulation skeleton. The application relates to a stator insulation skeleton. The application relates to a stator insulation skeleton. The application relates to a stator insulation skeleton. The application relates to a stator insulation skeleton. The application relates to a stator insulation skeleton. The application relates to a stator insulation skeleton. The application relates to a stator insulation skeleton. The application relates to a stator insulation skeleton. The application relates to a stator insulation skeleton. The application relates to a stator insulation skeleton. The application relates to a stator insulation skeleton. The application relates to a stator insulation skeleton. The application relates to a stator insulation skeleton. The application relates to a stator insulation skeleton. The application relates to a stator insulation skeleton. The application relates to a stator insulation skeleton. The application relates to a stator insulation skeleton. The application relates to a stator insulation skeleton. The application relates to a stator insulation skeleton. The application relates to a stator insulation skeleton. The application relates to a stator insulation skeleton. The application relates to a stator insulation skeleton. The application relates to a stator insulation skeleton. The application relates to a stator insulation skeleton. The application relates to a stator insulation skeleton. The application relates to a stator insulation skeleton. The application relates to a stator insulation skeleton. The application relates to a stator insulation skeleton. The application relates to a stator insulation skeleton. The application relates to a stator insulation skeleton. The application relates to a stator insulation skeleton. The application relates to a stator insulation skeleton. The application relates to a stator insulation skeleton. The application relates to a stator insulation skeleton. The application relates to a stator insulation skeleton. The application relates to a stator insulation skeleton. The application relates to a stator insulation skeleton. The application relates to a stator insulation skeleton. The application relates to a stator insulation skeleton. The application relates to a stator insulation skeleton. The application relates to a stator insulation skeleton. The application relates to a stator insulation skeleton. The application relates to a stator insulation skeleton. The application relates to a stator insulation skeleton. The application relates to a stator insulation skeleton. The application relates to a stator insulation skeleton. The application relates to a stator insulation skeleton. The application relates to a stator insulation skeleton. The application relates to a stator insulation skeleton. The application relates to a stator insulation skeleton. The application relates to a stator insulation skeleton. The application relates to a stator insulation skeleton. The application relates to a stator insulation skeleton. The application relates to a stator insulation skeleton. The application relates to a stactor

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