CN214314745U - Armature core structure of brushless DC motor - Google Patents
Armature core structure of brushless DC motor Download PDFInfo
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- CN214314745U CN214314745U CN202022814233.9U CN202022814233U CN214314745U CN 214314745 U CN214314745 U CN 214314745U CN 202022814233 U CN202022814233 U CN 202022814233U CN 214314745 U CN214314745 U CN 214314745U
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- silicon steel
- steel plate
- end steel
- armature core
- laminated
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Abstract
The utility model provides an armature core structure of a brushless DC motor, which comprises an end steel plate and a silicon steel sheet; the number of the silicon steel sheets is multiple, the number of the end steel plates is two, the silicon steel sheets and the end steel plates are arranged together in a laminating manner, and the end steel plates are positioned at two ends of the integral structure after the silicon steel sheets are laminated; tooth structures are arranged on the surfaces of the end steel plate and the silicon steel sheet, the tooth width of the end steel plate is smaller than or equal to that of the silicon steel sheet, and an internal space is reserved for installing a coil assembly; before the laminating process of the end steel plate and the silicon steel sheet, chamfering or rounding the teeth on the outer side of the end steel plate; after the integral structure of the laminated end steel plate and the silicon steel sheet is laminated through a tool, the outer surface of the laminated end steel plate and the laminated silicon steel sheet is welded into a whole; the to-be-solved technical problem of the utility model is: the problems of end deformation and tooth tension of the welded armature core of the medium and large direct current brushless motors are solved.
Description
Technical Field
The utility model relates to the technical field of motors, especially indicate a brushless DC motor armature core structure.
Background
In order to reduce the loss of the armature core, the traditional armature core is generally formed by laminating silicon steel sheets, meanwhile, the thicker silicon steel sheets are designed at the end part of the armature core, so that the problems of end part deformation and tooth tension after welding are solved, and along with the increase of the diameter and the power of a motor, the end part of the armature core designed according to the traditional design is subjected to wavy deformation in the production trial-manufacturing process, and the tooth tension phenomenon is serious.
Disclosure of Invention
The to-be-solved technical problem of the utility model is to provide a DC brushless motor armature core structure, can solve medium and large-scale DC brushless motor armature core welding back tip deformation and tooth problem of opening.
The utility model provides an armature core structure of a brushless DC motor, which comprises an end steel plate and a silicon steel sheet; the number of the silicon steel sheets is multiple, the number of the end steel plates is two, the silicon steel sheets and the end steel plates are arranged together in a laminating manner, and the end steel plates are positioned at two ends of the integral structure after the silicon steel sheets are laminated; tooth structures are arranged on the surfaces of the end steel plate and the silicon steel sheet, the tooth width of the end steel plate is smaller than or equal to that of the silicon steel sheet, and an internal space is reserved for installing a coil assembly; before the laminating process of the end steel plate and the silicon steel sheet, chamfering or rounding the teeth on the outer side of the end steel plate; the integral structure of the laminated end steel plate and the silicon steel sheet is integrated into a whole by welding on the outer surface after chamfering or rounding treatment after the integral structure is laminated through a tool.
The armature core structure of the brushless direct current motor further comprises a welding seam, wherein the welding seam is provided with a plurality of welding positions, and the welding positions are arranged at the welding positions on the outer circle surfaces of the integral structure and the end steel plates after the silicon steel plates are laminated in the axial direction.
The end steel plate is made of a non-magnetic conductive material.
The thickness of the silicon steel sheet is 0.1 mm-0.5 mm.
The thickness of the end steel plate is 3 mm-5 mm.
The beneficial effects of the utility model are that: the utility model provides a DC brushless motor armature core structure, which adds thicker end steel plate at the end of the armature core to axially restrain the silicon steel sheet at the middle part, so that the end surface of the armature core is smooth after welding; through adopting magnetic material processing tip steel sheet not led, carry out chamfer or radius to the tooth of tip steel sheet simultaneously and handle, this structure reduces hard coil tip length, reduces the insulating processing degree of difficulty of hard coil and reduces armature core eddy current loss simultaneously.
Drawings
Fig. 1 is a schematic view of a structure of an armature core of a brushless dc motor according to the present invention;
FIG. 2 is a schematic structural view of an end steel plate according to an embodiment of the present invention;
in the figure: 1-end steel plate, 2-silicon steel sheet and 3-welding seam.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. Furthermore, the technical features mentioned in the embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.
Referring to fig. 1 and 2, the present invention relates to an armature core structure of a dc brushless motor, which includes 2 end steel plates 1, 420 sheets of silicon steel 2 laminated on the middle part of the armature core structure of the dc brushless motor; two ends of the silicon steel sheet 2 are respectively laminated with the end steel plates 1 at two ends of the iron core structure; the armature core is designed to be a clockwise inclined groove, and the inner diameter and the outer diameter of the end steel plate 1 are consistent with those of the silicon steel sheet 2; the thickness of the silicon steel sheet 2 is 0.2 mm; the thickness of the end steel plate 1 is 3 mm; the laminating realizes the angle that the axial direction inclines a groove clockwise, and the excircle surface is connected into an organic whole through the welding after the pressurization, and the design has 15 welding seams 3 altogether, and the excircle is through the finish machining to the design size after the welding shaping.
A tooth structure is arranged at the overlapping position of the end steel plate 1 and the silicon steel plate 2; the tooth width of the end steel plate 1 is smaller than or equal to that of the silicon steel plate 2, and chamfering or rounding treatment is carried out on the teeth in the end steel plate 1 and the silicon steel plate 2.
The above description is only the preferred embodiments of the present invention, and these embodiments are all based on the present invention, and the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (5)
1. The utility model provides a brushless DC motor armature core structure which characterized in that: comprises an end steel plate and a silicon steel sheet; the number of the silicon steel sheets is multiple, the number of the end steel plates is two, the silicon steel sheets and the end steel plates are arranged together in a laminating manner, and the end steel plates are positioned at two ends of the integral structure after the silicon steel sheets are laminated; tooth structures are arranged on the surfaces of the end steel plate and the silicon steel sheet, the tooth width of the end steel plate is smaller than or equal to that of the silicon steel sheet, and an internal space is reserved for installing a coil assembly; before the laminating process of the end steel plate and the silicon steel sheet, chamfering or rounding the teeth on the outer side of the end steel plate; the integral structure of the laminated end steel plate and the silicon steel sheet is integrated into a whole by welding on the outer surface after chamfering or rounding treatment after the integral structure is laminated through a tool.
2. The structure of the armature core of the dc brushless motor according to claim 1, wherein: the welding seam is provided with a plurality of welding seams which are arranged at the welding positions of the outer circle surfaces of the integral structure and the end steel plates after the silicon steel plates are laminated in the axial direction.
3. The structure of the armature core of the dc brushless motor according to claim 1, wherein: the end steel plate is made of a non-magnetic conductive material.
4. The structure of the armature core of the dc brushless motor according to claim 1, wherein: the thickness of the silicon steel sheet is 0.1 mm-0.5 mm.
5. The structure of the armature core of the dc brushless motor according to claim 1, wherein: the thickness of the end steel plate is 3 mm-5 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022814233.9U CN214314745U (en) | 2020-11-26 | 2020-11-26 | Armature core structure of brushless DC motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022814233.9U CN214314745U (en) | 2020-11-26 | 2020-11-26 | Armature core structure of brushless DC motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214314745U true CN214314745U (en) | 2021-09-28 |
Family
ID=77844976
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022814233.9U Active CN214314745U (en) | 2020-11-26 | 2020-11-26 | Armature core structure of brushless DC motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214314745U (en) |
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2020
- 2020-11-26 CN CN202022814233.9U patent/CN214314745U/en active Active
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