Motor iron core with silencing grooves

Abstract

The utility model discloses a motor iron core with silencing grooves, which comprises a ring body formed by punching, a plurality of winding blocks integrally formed on the outer ring edge of the ring body, and supporting parts integrally formed at the end parts of the winding blocks, gaps are arranged between adjacent supporting parts, and the surface of the ring body is provided with a plurality of circular concave holes; strip-shaped noise reduction grooves are formed in the surface of the winding block and the surface of the circular ring body; at least one axial limiting clamping groove is formed in the inner ring edge of the circular ring body. The electromagnetic noise reduction ring is reasonable in structural arrangement, electromagnetic noise can be relieved by arranging the circular concave holes in the ring body to be matched with the winding blocks and the strip-shaped noise reduction grooves in the surface of the ring body, and therefore the electromagnetic noise can be reduced, and mechanical vibration can be buffered to a certain extent due to the circular concave holes and the strip-shaped noise reduction grooves. Therefore, the use stability and reliability of the whole structure are improved, the performance and efficiency of the whole machine are improved, and the applicability is high.

Description

Technical Field

[0001] This utility model belongs to the field of motor core technology, specifically relating to a motor core with a noise-reducing groove. Background Technology

[0002] The iron core is an important component inside the motor. It is mainly used for positioning the coil and can also increase the magnetic flux of the inductor coil to achieve the maximum conversion of electromagnetic power. The iron core of the existing technology generally includes a ring body, a winding block integrally formed on the outer ring edge of the ring body, and a support part at the end of the winding block, as shown in CN202022643927.0. Although it can meet the general use requirements, electromagnetic noise will exist in actual application, and it is also easy to generate mechanical vibration due to electromagnetic interference, which will affect the stability of the overall structure and thus limit its applicability. Summary of the Invention

[0003] The purpose of this invention is to provide a motor core with a noise-absorbing groove that has a reasonable structural design and is stable and reliable in use.

[0004] The technical solution to achieve the purpose of this utility model is a motor core with a noise reduction groove, including a stamped circular body, several winding blocks integrally formed on the outer ring edge of the circular body, a support portion integrally formed on the end of the winding block, a gap between adjacent support portions, and several circular concave holes provided on the surface of the circular body.

[0005] Both the surface of the winding block and the surface of the ring body are provided with strip-shaped noise-absorbing grooves;

[0006] At least one axial limiting groove is provided on the inner ring edge of the circular body.

[0007] A further preferred embodiment is that the support portion has several axial grooves on its surface away from the annular body.

[0008] A further preferred embodiment is that the number of axial grooves is two.

[0009] A further preferred embodiment is that the support portion has a plurality of radial grooves on its surface away from the annular body.

[0010] A further preferred embodiment is that the depth of the circular concave hole is 1 / 2 to 1 / 3 of the thickness of the annular body.

[0011] This utility model has positive effects: The structure of this utility model is reasonably designed. By setting a circular concave hole on the ring body, combined with the winding block and the strip-shaped silencing groove on the surface of the ring body, electromagnetic noise can be alleviated, thereby reducing electromagnetic noise. In addition, the circular concave hole and the strip-shaped silencing groove can also buffer mechanical vibration to a certain extent, thereby improving the stability and reliability of the overall structure, improving the overall performance and efficiency, and making it highly applicable. Attached Figure Description

[0012] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings, wherein:

[0013] Figure 1 This is a schematic diagram of the first structure of this utility model;

[0014] Figure 2 for Figure 1 Another perspective structural diagram;

[0015] Figure 3 This is a schematic diagram of the second structure of this utility model;

[0016] Figure 4 for Figure 3 Another perspective structural diagram.

[0017] Reference numerals: 1. Ring body; 2. Winding block; 3. Support part; 4. Circular concave hole; 5. Strip-shaped noise-absorbing groove; 6. Axial limiting groove; 7. Axial groove; 8. Radial groove. Detailed Implementation

[0018] 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, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0019] See Figures 1 to 2 As shown, a motor core with a noise-reducing groove includes a stamped circular body 1, several winding blocks 2 integrally formed on the outer ring edge of the circular body, and a support portion 3 integrally formed on the end of the winding blocks. A gap is provided between adjacent support portions. The above structure is a conventional structure in the prior art, so it is not described in detail. At the same time, its thickness can be processed and set as needed.

[0020] Furthermore, in this embodiment, the surface of the ring body is provided with a plurality of circular recesses 4; the depth of the circular recesses is 1 / 2 to 1 / 3 of the thickness of the ring body. Simultaneously, strip-shaped noise-absorbing grooves 5 are formed on both the surface of the winding block and the surface of the ring body; the circular recesses can be located on one surface of the ring body or on symmetrical surfaces, and the strip-shaped noise-absorbing grooves can also be located on one surface of the ring body and the winding block or on symmetrical surfaces.

[0021] Furthermore, in this embodiment, at least one axial limiting groove 6 is provided on the inner ring edge of the circular body. The axial limiting groove is semi-circular, which facilitates connection and positioning with other components of the motor.

[0022] This utility model has positive effects: The structure of this utility model is reasonably designed. By setting a circular concave hole on the ring body, combined with the winding block and the strip-shaped silencing groove on the surface of the ring body, electromagnetic noise can be alleviated, thereby reducing electromagnetic noise. In addition, the circular concave hole and the strip-shaped silencing groove can also buffer mechanical vibration to a certain extent, thereby improving the stability and reliability of the overall structure, improving the overall performance and efficiency, and making it highly applicable. Example

[0023] See Figures 3 to 4 As shown, this embodiment is basically the same as embodiment 1, except that: a plurality of axial grooves 7 are formed on the surface of the support portion away from the annular body. There are two axial grooves. A plurality of radial grooves 8 are formed on the surface of the support portion away from the annular body. This facilitates wire winding support and also helps improve the noise reduction and buffering effect.

[0024] The standard parts used in this embodiment can be purchased directly from the market, and the non-standard structural parts described in the instruction manual can also be processed without any doubt based on existing technical common sense. At the same time, the connection methods of each component adopt mature conventional methods in the existing technology, and the machinery, parts and equipment all adopt conventional models in the existing technology, so they will not be described in detail here.

[0025] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all embodiments here. However, these obvious variations or modifications derived from the essential spirit of this utility model still fall within the protection scope of this utility model.

Claims

1. A motor core with a sound reduction slot, comprising a stamping formed circular ring body, a plurality of winding blocks integrally formed on the outer ring edge of the circular ring body, a support part integrally formed on the end of the winding block, and a gap provided between adjacent support parts, characterized in that: The surface of the ring body is provided with a number of circular recesses; Both the surface of the winding block and the surface of the ring body are provided with strip-shaped noise-absorbing grooves; At least one axial limiting groove is provided on the inner ring edge of the circular body.

2. The motor core with a sound attenuation slot of claim 1, wherein: Several axial grooves are formed on the surface of the support part away from the annular body.

3. The motor core with a sound attenuation slot of claim 2, wherein: The number of axial grooves is two.

4. The motor core with a sound attenuation slot of claim 2, wherein: Several radial grooves are formed on the surface of the support part away from the annular body.

5. The motor core with a sound attenuation slot of claim 1, wherein: The depth of the circular concave hole is 1 / 2 to 1 / 3 of the thickness of the ring body.

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