Motor stator protection piece

By designing motor stator protection components, utilizing slotted connections and inner and outer flange protrusions, the problems of easy damage to motor stator coils and low assembly efficiency were solved, achieving rapid assembly and insulation protection.

CN223899016UActive Publication Date: 2026-02-10JIAXING QUNFENG ELECTRIC APPLIANCE CO LTD
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Patent Information

Application Number
CN202422104378.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-29
Publication Date
2026-02-10
Estimated Expiration
2034-08-29

AI Technical Summary

Technical Problem

Traditional motor stators lack protection, and the coils are prone to skewing and scratching under vibration or impact. The protruding parts are also easily scratched by foreign objects, leading to insulation damage, and the assembly efficiency is low.

Method used

Design a motor stator protection component, including first and second protection component bodies, which are engaged by a slot and a snap-fit ​​part, and are provided with an inner baffle, an outer baffle and a protruding ridge, adapted to the motor stator core, to provide shielding and coil restriction.

Benefits of technology

It enables rapid assembly of the motor stator, prevents the protection coil from coming loose, enhances insulation, and improves assembly efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a motor stator protection member, which is sleeved on a body of a motor stator iron core and comprises a first protection member main body and a second protection main body, and the first protection member main body and the second protection main body are combined on the body to partially or completely shield the body. According to the motor stator core, the first protection part body and the second protection part body are arranged and arranged on the body of the motor stator core in a sleeving mode in a mutual embracing mode, so that the body of the motor stator core is shielded, and the requirement for rapid assembly of strip-shaped silicon steel sheets can be well met.
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Description

Technical Field

[0001] This utility model belongs to the field of motor component technology, specifically relating to a motor stator protection component. Background Technology

[0002] An electric motor consists of a stator and a rotor. For an excitation motor, coils are wound on the stator, generating a magnetic field when energized. The stator is made of multiple stamped silicon steel sheets stacked together, with evenly distributed slots on each sheet. The coils are located within these slots. Traditionally, insulating paper is inserted into the slots before the coils are inserted, providing insulation. However, this method lacks protection at both ends of the stator, making it susceptible to damage during vibration or impact. The coils may deflect at the edges of the stator slots, causing scratches and potentially damaging the surface insulation of some coil wires. Furthermore, the coils protruding above the stator ends also lack protection, making them vulnerable to scratches from foreign objects during operation, compromising their electrical insulation. Traditional motor stators are made by stamping silicon steel sheets into rings, stacking multiple sheets, and then assembling insulating end plates at both ends of the stacked stator. To further improve production efficiency, a new type of stator silicon steel sheet has been developed, which is obtained by stamping into strip-shaped silicon steel sheets. Figure 10 As shown, then stack them into Figure 1-2 The motor stator core 10 shown includes a body 11 and a notch 13. A triangular notch 12 is provided at the connection between adjacent bodies 11. When force is applied to bend the connection between adjacent bodies 11, the two sides of the triangular notch 12 fit together, and the notch 13 deforms to form a coil avoidance channel. Thus, a sufficient number of bodies 11 can enclose a ring-shaped motor stator core 10. Therefore, the process requires that the motor stator protective component be installed on the body 11 before bending, so that a complete motor stator core with protective components can be obtained after bending. This requires that the motor stator protective component can be easily and quickly assembled onto the body 11. Summary of the Invention

[0003] The purpose of this invention is to provide a motor stator protection component that allows for quick and convenient assembly onto the main body.

[0004] To solve the above-mentioned technical problems, the purpose of this utility model is achieved as follows:

[0005] A motor stator protective component is sleeved on the body of the motor stator core, comprising a first protective component body and a second protective component body, wherein the first protective component body and the second protective component body are fitted onto the body, partially or completely covering the body.

[0006] Based on the above scheme and as a preferred embodiment of the above scheme: the connecting ends of the first protective component body and the second protective component body are respectively provided with a slot and a snap-fit ​​part, and after the two are joined together, the snap-fit ​​part is fitted into the slot.

[0007] Based on the above scheme and as a preferred embodiment of the above scheme: the first protective component body includes a first inner baffle and a first outer baffle; the second protective component body includes a second inner baffle and a second outer baffle; the surface edges of the opposite sides of the first inner baffle and the first outer baffle, and the surface edges of the opposite sides of the second inner baffle and the second outer baffle are all provided with protruding ridges.

[0008] Based on the above scheme and as a preferred embodiment of the above scheme: the first inner retaining edge and the second inner retaining edge are inclined toward the side where the center of the motor stator core is located; the surfaces of the first inner retaining edge and the second inner retaining edge toward the side where the center of the motor stator core is located are arc surfaces.

[0009] Based on the above scheme and as a preferred embodiment of the above scheme: a lead wire channel is provided on the first outer edge.

[0010] Based on the above scheme and as a preferred embodiment of the above scheme: both the first outer flange and the second outer flange extend horizontally to the side away from the center of the motor stator core, with a first horizontal flange and a second horizontal flange.

[0011] The outstanding and beneficial technical effects of this utility model compared with the prior art are as follows: by setting the first protective component body and the second protective component body, they are fitted onto the body of the motor stator core in a mutually clamping manner, thereby achieving the shielding of the motor stator core body, which can well meet the needs of rapid assembly of strip silicon steel sheets; the surface edges of the opposite sides of the first inner and first outer baffles, and the surface edges of the opposite sides of the second inner and second outer baffles are all provided with protruding ridges, which restrict the wound coil and make it difficult for it to fall out. Attached Figure Description

[0012] Figure 1 This is a three-dimensional view of the overall structure of the motor stator core after assembly with this application;

[0013] Figure 2 This is a front view of the overall structure of the motor stator core after assembly with this application;

[0014] Figure 3 This is a schematic diagram of the overall structure of this application;

[0015] Figure 4 This is a three-dimensional view of the overall structure of this application;

[0016] Figure 5This is a top view of the overall structure of this application;

[0017] Figure 6 This is a three-dimensional view of the overall structure of the first protective component;

[0018] Figure 7 This is a three-dimensional view of the main structure of the first protective component from another angle;

[0019] Figure 8 This is a three-dimensional view of the overall structure of the second protective component;

[0020] Figure 9 This is a three-dimensional view of the main structure of the second protective component from another angle;

[0021] Figure 10 It is a 3D view of the overall structure of the strip-shaped silicon steel sheet. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the given embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0023] In the description of this application, it should be understood that the terms "upper" and "lower" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application 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. Therefore, they should not be construed as limitations on this application.

[0024] In the description of this application, 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 technical features indicated.

[0025] See details Figure 1-10As shown, this application discloses a motor stator protective component, which is sleeved on the body 11 of the motor stator core 10. It includes a first protective component body 21 and a second protective component body 22. The first and second protective component bodies 21 and 22 are fitted onto the body 11. By setting the first and second protective component bodies and forming an accommodating space b through mutual clamping, it can be sleeved onto the body of the motor stator core, thereby shielding the motor stator core and effectively meeting the requirements for rapid assembly of strip-shaped silicon steel sheets. To ensure better positioning of the first and second protective component bodies 21 and 22 and to maintain their clamping state after clamping, this embodiment preferably provides a slot 21a and a locking portion 22a at the connecting ends of the first and second protective component bodies 21 and 22, respectively. After clamping, the locking portion 22a is fitted into the slot 21a. This allows the first protective component body 21 and the second protective component body 22 to fit together and be positioned effectively.

[0026] The first protective component body 21 includes a first frame-shaped base 211 and a first inner retaining edge 212 and a first outer retaining edge 213 disposed at both ends of the first frame-shaped base 211; the second protective component body 22 includes a second frame-shaped base 221 and a second inner retaining edge 222 and a second outer retaining edge 223 disposed at both ends of the second frame-shaped base 221; the surface edges of the opposite sides of the first inner retaining edge 212 and the first outer retaining edge 213, and the surface edges of the opposite sides of the second inner retaining edge 222 and the second outer retaining edge 223 are all provided with protruding ridges 23. By providing protruding ridges on the surface edges of the opposite sides of the first inner retaining edge and the first outer retaining edge, and on the surface edges of the opposite sides of the second inner retaining edge and the second outer retaining edge, the coil being wound is restricted, making it difficult for it to come off.

[0027] To best fit the motor stator core and allow for ample space for coil winding, this embodiment preferably features the first inner flange 212 and the second inner flange 222 inclined towards the center of the motor stator core 10; the surfaces of the first inner flange 212 and the second inner flange 222 facing the center of the motor stator core 10 are arc surfaces. Furthermore, to facilitate better lead-out of the coil, this embodiment preferably features a lead-out channel 216 on the first outer flange 213, through which the lead-out wire is led out after coil winding is completed.

[0028] Furthermore, to provide more adequate protection for the coil and better shield the motor stator core 10, this embodiment preferably includes first horizontal flanges 214 and 224 extending horizontally away from the center of the motor stator core 10, thus partially or completely shielding the main body 11. Multiple first protrusions 215 are provided on the first horizontal flange 214, and multiple second protrusions 225 are provided on the second horizontal flange 224. This allows the lead wire to be temporarily wound, and after the coil winding is completed, the end of the lead wire can be wrapped around the first and second protrusions 215 and 225, preventing the coil from unraveling due to lack of fixation.

[0029] The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of protection of the present utility model. Therefore, all equivalent changes made to the structure, shape, and principle of the present utility model should be covered within the scope of protection of the present utility model.

Claims

1. A motor stator protective component, which is sleeved on the body (11) of the motor stator core (10), characterized in that: The device includes a first protective body (21) and a second protective body (22), which are attached to the body (11) to partially or completely cover the body (11). The connecting ends of the first protective body (21) and the second protective body (22) are respectively provided with a slot (21a) and a snap-fit ​​part (22a). After the two are attached, the snap-fit ​​part (22a) is fitted into the slot (21a). The first protective body (21) includes a first inner baffle (212) and a first outer baffle (213). The second protective body (22) includes a second inner baffle (222) and a second outer baffle (223). The surface edges of the first inner baffle (212) and the first outer baffle (213) on opposite sides, and the surface edges of the second inner baffle (222) and the second outer baffle (223) on opposite sides are provided with protruding ridges (23).

2. The motor stator protection component according to claim 1, characterized in that: The first inner retaining edge (212) and the second inner retaining edge (222) are inclined toward the center of the motor stator core (10); the surfaces of the first inner retaining edge (212) and the second inner retaining edge (222) toward the center of the motor stator core (10) are arc surfaces.

3. The motor stator protection component according to claim 1, characterized in that: A lead wire channel (216) is provided on the first outer edge (213).

4. The motor stator protection component according to claim 1, characterized in that: The first outer edge (213) and the second outer edge (223) both extend horizontally to the side away from the center of the motor stator core (10) with a first horizontal edge (214) and a second horizontal edge (224).