A stator core using two shapes of silicon steel sheets laminated

Abstract

The stator core is stacked with silicon steel sheets of two shapes, including a first silicon steel ring body and no less than four second silicon steel sheets. The first silicon steel ring body is provided with no less than four positioning grooves in a surrounding array on the outside, each second silicon steel sheet is provided with a positioning protrusion, and the positioning protrusion and the positioning groove are snap-fitted. The second silicon steel sheets are stacked on the outside of the first silicon steel ring body, and a plurality of T-shaped heat dissipation components are integrally formed and installed on one side of the second silicon steel sheet away from the first silicon steel ring body. The utility model increases the heat dissipation area by stacking the second silicon steel sheet body and the first silicon steel ring body together using the T-shaped heat dissipation components, and forms a first heat dissipation zone, thereby improving the heat dissipation efficiency of the stator core and extending the service life of the stator core.

Description

Technical Field

[0001] The utility model relates to the technical field of stator cores, in particular to a stator core made of laminated silicon steel sheets of two shapes. Background Art

[0002] The stator core (iron core) is the basic component of the stator core assembly of the automobile generator, and together with the stator coil, insulating paper, etc., it constitutes the stator assembly.

[0003] However, the stator core in the prior art has a relatively small external heat dissipation area, and heat is dissipated only through the outer surface area of ​​the core itself. The heat dissipation efficiency needs to be improved, which affects the service life of the stator core.

[0004] Therefore, in view of the shortcomings of the prior art, it is necessary to provide a stator core using two shapes of stacked silicon steel sheets to solve the shortcomings of the prior art. Utility Model Content

[0005] The utility model aims to avoid the shortcomings of the prior art and provide a stator core using two shapes of stacked silicon steel sheets. The stator core using two shapes of stacked silicon steel sheets stacks a second silicon steel sheet body and a first silicon steel ring body together, uses a T-shaped heat dissipation component to increase the heat dissipation area, and forms a first heat dissipation zone, thereby improving the heat dissipation efficiency of the stator core and extending the service life of the stator core.

[0006] The above-mentioned purpose of the utility model is achieved through the following technical means.

[0007] Provided is a stator core using two shapes of silicon steel sheets stacked together, comprising a first silicon steel ring body and at least four second silicon steel sheets, the first silicon steel ring body is provided with at least four positioning grooves arranged in a surrounding array on the outside, each second silicon steel sheet body is provided with a positioning convex block, the positioning convex block and the positioning groove are snap-fitted, the second silicon steel sheets are stacked on the outside of the first silicon steel ring body, and a plurality of T-shaped heat dissipation components are integrally formed and installed on one side of the second silicon steel sheet body away from the first silicon steel ring body;

[0008] A plurality of T-shaped heat dissipation components are integrally formed in a surrounding array and installed on the outside of the second silicon steel sheet body. The T-shaped heat dissipation components include a spacer block, which is vertically installed on the outside of the second silicon steel sheet body. An auxiliary heat dissipation fin is fixedly installed on the end of the spacer block away from the second silicon steel sheet body. A heat dissipation groove is provided between two adjacent auxiliary heat dissipation fins. A first heat dissipation zone is provided in the area surrounded by two adjacent spacer blocks, two adjacent auxiliary heat dissipation fins, the second silicon steel sheet body and the heat dissipation groove. A weld is provided between the second silicon steel sheets.

[0009] Specifically, the first silicon steel ring body is provided with a plurality of convex strips distributed in a surrounding array inside, a limiting convex block is fixedly installed on one end of the convex strip away from the first silicon steel ring body, a wire clamping groove is provided between the convex blocks on two adjacent convex strips, and a wire storage groove is provided between two adjacent convex strips.

[0010] Preferably, the positioning protrusions are installed in the middle of the second silicon steel sheet in the length direction, and the positioning protrusions and the welds are distributed in a staggered manner in a surrounding array outside the first silicon steel ring body.

[0011] Specifically, the first silicon steel ring body is tightly fitted to the second silicon steel sheet body.

[0012] The utility model stacks the second silicon steel sheet body and the first silicon steel ring body together, uses a T-shaped heat dissipation component to increase the heat dissipation area, and forms a first heat dissipation zone, thereby improving the heat dissipation efficiency of the stator core and extending the service life of the stator core. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The present invention is further described with reference to the accompanying drawings, but the contents in the accompanying drawings do not constitute any limitation to the present invention.

[0014] Figure 1 The utility model is a schematic diagram of a main cross-section of a stator core using two shapes of stacked silicon steel sheets.

[0015] Figure 2 The utility model is a schematic diagram of the main cross-section of the second silicon steel sheet body of the stator core stacked with two shapes of silicon steel sheets after welding.

[0016] Figure 3 It is an enlarged schematic diagram of point A of a stator core using two shapes of laminated silicon steel sheets of the present invention.

[0017] from Figures 1 to 3 Including:

[0018] 1. The first silicon steel ring;

[0019] 2. The second silicon steel sheet;

[0020] 3. Positioning groove;

[0021] 4. Positioning bumps;

[0022] 5. T-type heat dissipation component;

[0023] 51. spacer block, 52. auxiliary heat sink, 53. heat dissipation slot, 54. first heat dissipation area;

[0024] 6. Welding seam;

[0025] 7. Convex strips;

[0026] 8. Limiting bump;

[0027] 9. Wire slot;

[0028] 10. Wire storage slot. DETAILED DESCRIPTION

[0029] The utility model is further described in conjunction with the following embodiments.

[0030] Example 1.

[0031] like Figure 1-3 As shown, a stator core using two shapes of silicon steel sheets stacked together includes a first silicon steel ring body 1 and no less than four second silicon steel sheets 2. The outside of the first silicon steel ring body 1 is provided with no less than four positioning grooves 3 arranged in a surrounding array. Each second silicon steel sheet 2 is provided with a positioning protrusion 4. The positioning protrusion 4 and the positioning groove 3 are snap-fitted together. The second silicon steel sheets 2 are stacked on the outside of the first silicon steel ring body 1. A plurality of T-shaped heat dissipation components 5 are integrally formed and installed on one side of the second silicon steel sheet 2 away from the first silicon steel ring body 1.

[0032] The present application is used for an automobile generator, which is formed by fixing and welding a first silicon steel ring body 1 and a plurality of second silicon steel sheets 2. The second silicon steel sheets 2 are positioned on the first silicon steel ring body 1 through the cooperation of a positioning groove 3 and a positioning protrusion 4. The heat on the first silicon steel ring body 1 is transferred through a T-shaped heat dissipation component 5, thereby increasing the heat dissipation area, improving the heat dissipation efficiency, and extending the service life of the automobile generator stator core.

[0033] A plurality of T-shaped heat dissipation components 5 are integrally formed in a surrounding array and installed on the outside of the second silicon steel sheet 2. The T-shaped heat dissipation components 5 include a spacer block 51, which is vertically installed on the outside of the second silicon steel sheet 2. An auxiliary heat sink 52 is fixedly installed on the end of the spacer block 51 away from the second silicon steel sheet 2. A heat dissipation groove 53 is provided between two adjacent auxiliary heat sinks 52. A first heat dissipation zone 54 is provided in the area surrounded by two adjacent spacer blocks 51, two adjacent auxiliary heat sinks 52, the second silicon steel sheet 2 and the heat dissipation groove 53. A weld 6 is provided between the second silicon steel sheets 2.

[0034] The T-shaped heat dissipation assembly 5 increases the heat dissipation space and creates a heat dissipation gap through the spacer block 51. At the same time, the heat dissipation area of ​​the stator core is increased through the auxiliary heat sink 52 and the spacer block 51. At the same time, the heat generated on the second silicon steel sheet 2 can flow from the first heat dissipation area 54 to the outside through the heat dissipation groove 53 and will not be stored in the first heat dissipation area 54.

[0035] The first silicon steel ring body 1 has a plurality of convex strips 7 arranged in a surrounding array inside, a limiting protrusion 8 is fixedly mounted on one end of the convex strip 7 away from the first silicon steel ring body 1, a wire clamping groove 9 is provided between the protrusions on two adjacent convex strips 7, and a wire storage groove 10 is provided between two adjacent convex strips 7.

[0036] The iron core coil is better fixed inside the wire storage groove 10 through the wire clamping groove 9.

[0037] The positioning protrusion 4 is installed in the middle of the second silicon steel sheet 2 in the length direction, and the positioning protrusion 4 and the welding seam 6 are distributed in a surrounding array outside the first silicon steel ring 1 in an alternating manner.

[0038] The second silicon steel sheet 2 and the first silicon steel ring 1 are initially positioned by the positioning protrusion 4 , and then the second silicon steel sheet 2 and the first silicon steel ring 1 are finally fixed by welding at the welding seam 6 .

[0039] The first silicon steel ring body 1 and the second silicon steel sheet body 2 are closely fitted to facilitate efficient heat transfer.

[0040] The utility model stacks the second silicon steel sheet 2 and the first silicon steel ring 1 together, uses a T-shaped heat dissipation component 5 to increase the heat dissipation area, and forms a first heat dissipation zone 54, thereby improving the heat dissipation efficiency of the stator core and extending the service life of the stator core.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit the protection scope of the utility model. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the utility model.

Claims

1. A stator core using two shapes of silicon steel sheets laminated together, characterized in that: It comprises a first silicon steel ring body and no less than 4 second silicon steel sheets, the first silicon steel ring body is provided with no less than 4 positioning grooves in a surrounding array on the outside, each of the second silicon steel sheets is provided with a positioning protrusion, the positioning protrusion and the positioning groove are snap-fitted, the second silicon steel sheets are superimposed on the outside of the first silicon steel ring body, and a plurality of T-shaped heat dissipation components are integrally formed and installed on one side of the second silicon steel sheet away from the first silicon steel ring body; A plurality of T-shaped heat dissipation components are integrally formed in a surrounding array and installed on the outside of the second silicon steel sheet. The T-shaped heat dissipation components include a spacer block, which is vertically installed on the outside of the second silicon steel sheet. An auxiliary heat sink is fixedly installed on the end of the spacer block away from the second silicon steel sheet. A heat dissipation groove is provided between two adjacent auxiliary heat sinks. A first heat dissipation zone is provided in the area surrounded by two adjacent spacer blocks, two adjacent auxiliary heat sinks, the second silicon steel sheet and the heat dissipation groove. A weld is provided between the second silicon steel sheets.

2. The stator core using two types of laminated silicon steel sheets according to claim 1, characterized in that: The first silicon steel ring body has a plurality of convex strips arranged in a surrounding array inside, a limiting convex block is fixedly installed on one end of the convex strip away from the first silicon steel ring body, a wire clamping groove is provided between the convex blocks on two adjacent convex strips, and a wire storage groove is provided between two adjacent convex strips.

3. The stator core using two types of laminated silicon steel sheets according to claim 2, characterized in that: The positioning protrusion is installed in the middle of the second silicon steel sheet in the length direction, and the positioning protrusion and the welding seam are distributed in a staggered manner in a surrounding array outside the first silicon steel ring body.

4. The stator core using two types of laminated silicon steel sheets according to claim 3, characterized in that: The first silicon steel ring body is tightly fitted to the second silicon steel sheet body.

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