Novel rotor core

Abstract

The utility model provides a novel rotor core, and belongs to the technical field of machinery. The problem of poor stability in the prior art is solved. The novel rotor iron core comprises a body, iron cores and retainers, the body is in a disc shape, the iron cores are connected to the edge of the body through the retainers, the iron cores are evenly distributed on the outer side of the body in the circumferential direction, the number of the retainers and the number of the iron cores are both multiple, and the retainers and the iron cores are evenly distributed on the outer side of the body in the circumferential direction. The upper portions of the retainers are connected to the upper end of the body in a buckled mode, the inner sides of the retainers are connected to the outer side of the body in a buckled mode, one iron core is positioned between each retainer and the body, and the other iron core is positioned between every two adjacent retainers. The novel rotor iron core is high in stability.

Description

Technical Field

[0001] The utility model belongs to the technical field of machinery and relates to a novel rotor core. Background Art

[0002] The electrical rotor is a key component in the motor, which together with the stator constitutes the basic structure of the motor. The electrical rotor usually refers to the rotating part of the motor, which rotates under the action of electromagnetic force, thereby converting electrical energy into mechanical energy.

[0003] The existing rotor core includes a body, an iron core and a retainer. The body is disc-shaped. The iron core and the retainer are evenly distributed axially outside the body. The retainer is connected to the outside of the body, and the iron core is positioned between two adjacent retainers. It can be seen that the above structure leads to too many retainers, and the entire rotor has many parts, which makes assembly and disassembly cumbersome, and the stability is also relatively poor. Summary of the invention

[0004] The purpose of the utility model is to provide a new rotor core with compact structure and high stability in view of the above problems existing in the prior art.

[0005] The purpose of the utility model can be achieved through the following technical solutions:

[0006] A novel rotor core comprises a body, an iron core and a retaining frame, wherein the body is disc-shaped, the iron core is connected to the edge of the body through the retaining frame, and a plurality of iron cores are evenly distributed circumferentially on the outside of the body, and the character is that the number of the retaining frames and the iron cores are both several, and the plurality of retaining frames and the iron cores are evenly distributed circumferentially on the outside of the body, the upper part of the retaining frame is snap-connected to the upper end of the body, the inner side of the retaining frame is snap-connected to the outside of the body, an iron core is positioned between the retaining frame and the body, and another iron core is positioned between two adjacent retaining frames.

[0007] In the above-mentioned new rotor core, the retaining frame includes a sheet-shaped connecting plate and a positioning plate. The number of the connecting plates is two, and the two connecting plates are symmetrically arranged at both ends of the positioning plate. The positioning plate protrudes from the side of the connecting plate. The positioning plate is snap-connected to the upper end of the main body, and the inner side of the connecting plate is snap-connected to the outer side of the main body.

[0008] In the above-mentioned novel rotor core, the inner side of the connecting piece has a protruding positioning edge along the axial direction of the body, the outer side of the body has a positioning groove matching the positioning edge, and the positioning edge is embedded in the corresponding positioning groove.

[0009] In the above-mentioned novel rotor core, the positioning edge is located at the middle of the connecting piece.

[0010] In the above-mentioned novel rotor core, the cross section of the positioning edge is dovetail-shaped.

[0011] In the above-mentioned novel rotor core, the positioning edge, the connecting piece and the positioning piece are all integrated structures.

[0012] In the above-mentioned novel rotor core, a planar contact surface 1 is formed between two adjacent positioning grooves on the outer side of the body, and a planar contact surface 2 is formed on the inner side of the core, and the contact surface 1 and the contact surface 2 maintain surface contact.

[0013] In the above-mentioned novel rotor core, the outer edge of the positioning piece is provided with a concave escape groove, and the upper end of the core located in the retaining frame is partially exposed from the escape groove.

[0014] In the above-mentioned novel rotor core, the positioning piece has a locking groove matching the upper end of the core, and the upper end of the core is embedded in the locking groove.

[0015] In the above-mentioned novel rotor core, the outer side of the core is arc-shaped and there is a smooth transition between the outer side of the retaining frame and the outer side of the core.

[0016] Compared with the prior art, the new rotor core can not only position one core between the retaining frame and the body, but also position another core between adjacent retaining frames. Therefore, the number of retaining frames is reduced in disguise, the structure of the entire rotor core is simplified, the loading and unloading thereof is facilitated, and the stability thereof is relatively high.

[0017] At the same time, a relatively small number of retainers can appropriately improve the structural compactness of the entire rotor core and has a high use value. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the rotor core of the novel device when viewed from above.

[0019] Figure 2 It is a schematic diagram of the three-dimensional structure of the rotor core of the novel device when viewed from above.

[0020] Figure 3 It is a schematic diagram of the cross-sectional structure of the rotor core of the present invention.

[0021] In the figure, 1, body; 1a, positioning groove; 1b, contact surface one; 2, iron core; 2a, contact surface two; 3, retaining frame; 3a, positioning plate; 3a1, avoidance groove; 3a2, locking groove; 3b, connecting plate; 3b1, positioning edge. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] It should be noted that when a component is referred to as being "mounted on" another component, it may be directly mounted on the other component or there may be a central component. When a component is considered to be "set on" another component, it may be directly set on the other component or there may be a central component at the same time. When a component is considered to be "fixed to" another component, it may be directly fixed on the other component or there may be a central component at the same time.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "or / and" used herein includes any and all combinations of one or more related listed items.

[0025] like Figure 1 As shown, the rotor core of the present invention comprises a body 1, a core 2 and a retaining frame 3. The body 1 is disc-shaped, the core 2 is connected to the edge of the body 1 through the retaining frame 3, and a plurality of cores 2 are evenly distributed on the outside of the body 1 in the circumferential direction.

[0026] like Figure 1 and Figure 2 and Figure 3 As shown, the number of the retaining frames 3 and the iron core 2 is several, and the several retaining frames 3 and the iron core 2 are evenly distributed on the outside of the main body 1 in the circumferential direction. The upper part of the retaining frame 3 is snap-fitted and connected to the upper end of the main body 1, and the inner side of the retaining frame 3 is snap-fitted and connected to the outside of the main body 1. An iron core 2 is positioned between the retaining frame 3 and the main body 1, and another iron core is positioned between two adjacent retaining frames 3.

[0027] The rotor core of the present invention can position one core 2 between the retainer 3 and the body 1, and another core 2 can be positioned outside the body 1 of two adjacent retainers 3. Therefore, under the action of the retainer 3, multiple cores 2 can be stably positioned and connected outside the body 1, and multiple cores 2 are evenly distributed circumferentially outside the body 1.

[0028] A relatively small number of retainers 3 effectively simplifies the structure of the entire rotor core.

[0029] The retaining frame 3 includes a sheet-shaped connecting piece 3b and a positioning piece 3a. There are two connecting pieces 3b, which are symmetrically arranged at both ends of the positioning piece 3a. The positioning piece 3a protrudes from the side of the connecting piece 3b. The positioning piece 3a is snap-fitted and connected to the upper end of the main body 1, and the inner side of the connecting piece 3b is snap-fitted and connected to the outer side of the main body 1.

[0030] The positioning piece 3a is snap-fitted to the upper end of the body 1, and the connecting piece 3b is snap-fitted to the outside of the body 1. Such a structure can not only position and connect the retainer 3 to the body 1, but also stably position the core 2 between the retainer 3 and the body 1.

[0031] Of course, the edge of another core 2 is positioned at the edge of the body 1 and the connecting piece 3b. Since the two sides of the core 2 have corresponding retainers 3, the outer side of the body 1 of the adjacent retainer 3 can eventually be positioned and connected to a core 2.

[0032] The inner side of the connecting piece 3b has a protruding positioning edge 3b1 along the axial direction of the main body 1, and the outer side of the main body 1 has a positioning groove 1a matching the positioning edge 3b1, and the positioning edge 3b1 is embedded in the corresponding positioning groove 1a.

[0033] The positioning edge 3b1 is located at the middle of the connecting piece 3b.

[0034] The cross section of the positioning edge 3b1 is dovetail-shaped.

[0035] After the positioning edge 3b1 is embedded in the positioning groove 1a, the connecting piece 3b can be stably connected to the outside of the main body 1.

[0036] Of course, the positioning edge 3b1 is located in the middle of the connecting piece 3b. Such a structure enables the connecting piece 3b to be stably buckled at the edge of the iron core 2.

[0037] The positioning edge 3b1, the connecting piece 3b and the positioning piece 3a are all integral structures.

[0038] The structure of the integral retaining frame is relatively compact, and the dovetail-shaped positioning edge 3 b 1 can ensure that the connecting piece 3 b is stably connected to the body 1 .

[0039] A planar contact surface 1b is formed between two adjacent positioning grooves 1a on the outer side of the body 1, and a planar contact surface 2a is formed on the inner side of the iron core 2. The contact surface 1b maintains surface contact with the contact surface 2a.

[0040] After the contact surface 1 b is matched and connected with the contact surface 2 a , the iron core 2 can be stably connected to the outside of the body 1 .

[0041] The outer edge of the positioning piece 3a has a concave escape groove 3a1, and the upper end of the iron core 2 located in the retaining frame 3 is partially exposed from the escape groove 3a1.

[0042] The avoidance groove 3a1 has two functions:

[0043] First, reduce the material consumption of the cage 3;

[0044] Second, the core 2 can be exposed from the retaining frame 3 as much as possible.

[0045] The positioning piece 3a has a locking groove 3a2 matching the upper end of the iron core 2, and the upper end of the iron core 2 is embedded in the locking groove 3a2.

[0046] After the upper end of the iron core 2 is inserted into the positioning groove 3a2 of the positioning plate, the upper end of the iron core 2 can be stably fixedly connected to the retaining frame 3.

[0047] The outer side of the iron core 2 is arc-shaped and the outer side of the retainer 3 and the outer side of the iron core 2 have a smooth transition.

[0048] This can appropriately improve the structural compactness of the entire rotor core.

[0049] The novel rotor core can not only position one core between the retaining frame and the body, but also position another core between adjacent retaining frames. Therefore, the number of retaining frames is reduced in disguise, the structure of the entire rotor core is simplified, the loading and unloading thereof is facilitated, and the stability thereof is relatively high.

[0050] At the same time, a relatively small number of retainers can appropriately improve the structural compactness of the entire rotor core and has a high use value.

[0051] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0052] Those skilled in the art should recognize that the above embodiments are only used to illustrate the present invention and are not intended to limit the present invention. As long as they are within the spirit of the present invention, appropriate changes and modifications to the above embodiments are within the scope of protection required by the present invention.

Claims

1. A novel rotor core, comprising a body, an iron core and a retainer, wherein the body is disc-shaped, the iron core is connected to the edge of the body through the retainer and a plurality of iron cores are evenly distributed on the outside of the body in the circumferential direction, characterized in that: The number of the retaining frames and the iron cores are both several, and the retaining frames and the iron cores are evenly distributed on the outside of the main body in the circumferential direction. The upper part of the retaining frame is snap-connected to the upper end of the main body, and the inner side of the retaining frame is snap-connected to the outside of the main body. An iron core is positioned between the retaining frame and the main body, and another iron core is positioned between two adjacent retaining frames.

2. The novel rotor core according to claim 1 is characterized in that: The retaining frame includes a sheet-shaped connecting piece and a positioning piece. There are two connecting pieces, which are symmetrically arranged at both ends of the positioning piece. The positioning piece protrudes from the side of the connecting piece. The positioning piece is snap-connected to the upper end of the main body, and the inner side of the connecting piece is snap-connected to the outer side of the main body.

3. The novel rotor core according to claim 2 is characterized in that: The inner side of the connecting piece is provided with a protruding positioning edge along the axial direction of the main body, and the outer side of the main body is provided with a positioning groove matching the positioning edge, and the positioning edge is embedded in the corresponding positioning groove.

4. The novel rotor core according to claim 3 is characterized in that: The positioning edge is located at the middle of the connecting piece.

5. The novel rotor core according to claim 4 is characterized in that: The cross section of the positioning edge is dovetail-shaped.

6. The novel rotor core according to claim 5 is characterized in that: The positioning edge, the connecting piece and the positioning piece are all integrated structures.

7. The novel rotor core according to claim 6 is characterized in that: A planar contact surface 1 is formed between two adjacent positioning grooves on the outer side of the body, and a planar contact surface 2 is formed on the inner side of the iron core. The contact surface 1 and the contact surface 2 are in surface contact.

8. The novel rotor core according to claim 7 is characterized in that: The outer edge of the positioning piece is provided with a concave avoidance groove, and the upper end of the iron core located in the retaining frame is partially exposed from the avoidance groove.

9. The novel rotor core according to claim 8, characterized in that: The positioning piece is provided with a locking groove matching the upper end of the iron core, and the upper end of the iron core is embedded in the locking groove.

10. The novel rotor core according to claim 9, characterized in that: The outer side of the iron core is arc-shaped and there is a smooth transition between the outer side of the retaining frame and the outer side of the iron core.

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