CN217642898U - Motor of easily assembling - Google Patents
Motor of easily assembling Download PDFInfo
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- CN217642898U CN217642898U CN202221280059.7U CN202221280059U CN217642898U CN 217642898 U CN217642898 U CN 217642898U CN 202221280059 U CN202221280059 U CN 202221280059U CN 217642898 U CN217642898 U CN 217642898U
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Abstract
The utility model discloses an easy-to-assemble motor, which comprises a stator assembly, a rotor assembly and a shell assembly, wherein the stator assembly is provided with a stator core and a winding, the stator core is an annular structure formed by splicing a plurality of iron core monomers, the iron core monomers are in I-shaped structures, one side of the iron core monomers is a stator yoke part, the other side of the iron core monomers is a tooth boot part, and the stator core monomers and the iron core monomers are connected through stator teeth; the windings are wound on the stator teeth respectively; the rotor assembly is provided with a rotor iron core, a rotating shaft and a plurality of magnetic steels; the rotor assembly is coaxially arranged at the center of the stator assembly, and air gaps are formed between the plurality of magnetic steels and the tooth shoe parts; the rotor assembly and the stator assembly are positioned in the shell assembly, the stator assembly and the shell assembly are fixed, and the rotating shaft penetrates through the shell assembly and is in rotatable connection with the shell assembly. According to the motor easy to assemble, the stator core is formed by splicing a plurality of core monomers, the waste of silicon steel sheets is less, and the material utilization rate is high; the iron core monomer is convenient to wind, high in winding efficiency, capable of being applied to large-scale automatic production and capable of improving production efficiency.
Description
Technical Field
The utility model relates to a motor specifically is a motor of easy equipment.
Background
The conventional motor stator core is of an integral structure, a plurality of silicon steel sheets are superposed and pressed into a whole after a single silicon steel sheet is punched, and the stator core silicon steel sheets manufactured by adopting the structure are more in waste and lower in material utilization rate; in addition, the integral iron core structure has the defects of difficult winding when coils are wound on the stator teeth and low winding efficiency due to small gaps among the stator teeth, and is difficult to apply to large-scale automatic production.
Therefore, the above technical problems need to be solved.
Disclosure of Invention
The utility model provides an easy-to-assemble motor, the stator core is formed by splicing a plurality of core monomers, the waste of silicon steel sheets is less, the material utilization rate is high, and the material cost is saved; the iron core monomer is convenient to wind, high in winding efficiency and capable of being applied to large-scale automatic production, and production efficiency is improved.
In order to achieve the above purpose, the technical scheme of the utility model is that:
an easy to assemble electric machine comprising:
the stator assembly is provided with a stator core and a winding, the stator core is of an annular structure formed by splicing a plurality of iron core monomers, the iron core monomers are of an I-shaped structure, one side of each iron core monomer is a stator yoke part, the other side of each iron core monomer is a tooth shoe part, and the middle of each iron core monomer is provided with stator teeth connected with the stator yoke part and the tooth shoe part; one end of each tooth boot part is provided with a splicing bulge, the other end of each tooth boot part is provided with a splicing groove, and the splicing bulges are connected in the adjacent splicing grooves; the windings are wound on the stator teeth respectively;
the rotor assembly is provided with a rotor core, a rotating shaft and a plurality of magnetic steels, wherein the rotor core is of a cylindrical structure, the rotating shaft penetrates through and is fixed at the central position of the rotor core, and the plurality of magnetic steels are circumferentially arranged and fixed along the outer cylindrical surface of the rotor core; and
the shell assembly is provided with a shell and a cover plate, the shell is provided with a cavity, and the cover plate and the shell are fixedly sealed with the cavity;
the rotor assembly is coaxially arranged at the center of the stator assembly, and air gaps are formed between the plurality of magnetic steels and the tooth boot parts; the rotor assembly and the stator assembly are positioned in the cavity of the shell, the stator assembly is fixed with the shell, and the rotating shaft penetrates through the shell and is rotatably connected with the shell.
According to the motor easy to assemble, the stator core is formed by splicing the plurality of core monomers, the waste of silicon steel sheets is less, the material utilization rate is high, and the material cost is saved; the iron core monomer is convenient to wind, high in winding efficiency and applicable to large-scale automatic production, and the production efficiency is improved; a plurality of iron core monomers pass through stator yoke portion concatenation protruding connection and form annular stator core in adjacent concatenation recess, and the equipment is convenient.
Furthermore, a through groove parallel to the axis is arranged on the outer side surface of the tooth boot part. The penetrating groove reduces the magnetic flux density by increasing the air gap, reduces the influence of the higher harmonic magnetic flux density, and can reduce the noise when the motor runs.
Further stator yoke portion lateral surface is equipped with the constant head tank parallel with the axis, the inner wall of shell be equipped with the corresponding cooperation groove of constant head tank, set up the locating pin restriction in constant head tank and the cooperation groove the iron core monomer rotary displacement. The positioning pin is inserted into the positioning groove and the matching groove to realize circumferential positioning of the iron core monomer and the shell.
And further, axial strip-shaped protrusions are arranged on the outer cylindrical surface of the rotor core and used for positioning the circumferential position of the magnetic steel. The strip-shaped protrusions facilitate the installation and fixation of the magnetic steel.
Further the inside first step that is equipped with of shell, be equipped with the second step on the apron, first step and second step laminate respectively the two sides of stator core stator yoke portion, axial positioning stator module. The first step and the second step realize the axial positioning of the stator assembly, and ensure that the stator assembly cannot move axially.
The rotor assembly further comprises a first bearing and a second bearing, and inner rings of the first bearing and the second bearing are respectively positioned at two ends of the rotating shaft; the outer race of the first bearing is positioned inside the housing and the outer race of the second bearing is positioned inside the cover plate. The first bearing and the second bearing enable the rotor assembly to drive the rotating shaft to rotate.
The cover plate comprises a fixing plate and a bearing seat plate, the fixing plate is connected to the shell, the bearing seat plate is fixed to the center of the fixing plate, and the second bearing is fixed to the inside of the bearing seat plate. The cover plate is divided into the fixing plate and the bearing seat plate, so that the mounting of the rotor assembly is facilitated, the air gap between the magnetic steel and the tooth boot part is adjusted, and the uniformity of the air gap is ensured.
The penetrating grooves are rectangular grooves, and the number of the penetrating grooves is two. The two rectangular through grooves can better reduce the noise generated when the motor runs.
Compared with the prior art, the utility model have following technical advantage:
1. the easily-assembled motor stator core is formed by splicing a plurality of core monomers, so that waste of silicon steel sheets is less, the material utilization rate is high, and the material cost is saved; the iron core monomer is convenient to wind, high in winding efficiency and applicable to large-scale automatic production, and the production efficiency is improved;
2. the easy-to-assemble motor has the advantages that the plurality of iron core monomers are connected in the adjacent splicing grooves through the splicing bulges at the yoke parts of the stator to form the annular stator iron core, and the assembly is convenient; an axial strip-shaped bulge is arranged on the outer cylindrical surface of the rotor core, so that the magnetic steel can be conveniently installed and fixed;
3. the outer side surface of the easy-to-assemble motor tooth boot part is provided with a through groove parallel to the axis, the through groove reduces the magnetic flux density by increasing an air gap, reduces the influence of the higher harmonic magnetic flux density, and can reduce the noise of the motor during operation;
4. this motor apron of easily assembling divide into fixed plate and bearing seat board and is favorable to the installation of rotor subassembly and adjusts the air gap between magnet steel and tooth boots portion, guarantees the even of air gap.
Drawings
Fig. 1 is a perspective view of an electric machine in which an embodiment of the present invention is easily assembled;
FIG. 2 is a perspective view in half section of FIG. 1;
FIG. 3 is an exploded view of FIG. 1;
fig. 4 is a front view of the stator core of fig. 3;
fig. 5 is a perspective view of the core unit of fig. 4;
FIG. 6 is a perspective view of the rotor core of FIG. 3;
fig. 7 is a perspective view of the housing of fig. 3.
Detailed Description
The invention will be described in further detail with reference to embodiments shown in the drawings.
As shown in fig. 1 to 7, the present invention provides an easy to assemble motor embodiment.
As shown in fig. 1, 2 and 3, the easy-to-assemble motor includes a stator assembly 100, a rotor assembly 200 and a housing assembly 300.
As shown in fig. 2 and 3, the stator assembly 100 has a stator core 110 and a winding 120. As shown in fig. 4 and 5, the stator core 110 is an annular structure formed by splicing twelve core monomers 111, each core monomer 111 is an i-shaped structure, one side of each core monomer is a stator yoke 112, the other side of each core monomer is a tooth shoe 113, and the middle of each core monomer is a stator tooth 114 connecting the stator yoke 112 and the tooth shoe 113; the tooth shoe 113 has a splicing protrusion 115 at one end and a splicing groove 116 at the other end, and the splicing protrusion 115 is connected in the adjacent splicing groove 116; the windings 120 are wound around the stator teeth 114, respectively. As shown in fig. 5, the specific structure of the splicing protrusion 115 and the splicing groove 116 is a semi-cylindrical shape, which is easy to process and assemble.
As shown in fig. 2 and 3, the rotor assembly 200 has a rotor core 210, a rotating shaft 220 and ten magnetic steels 230, the rotor core 210 is a cylindrical structure, the rotating shaft 220 penetrates through and is fixed at the central position of the rotor core 210, and the ten magnetic steels 230 are uniformly arranged and fixed along the circumferential direction of the outer cylindrical surface of the rotor core 210.
As shown in fig. 1, 3 and 7, the housing assembly 300 has a housing 310 and a cover plate 320, the housing 310 has a cavity 311, and the cover plate 320 and the housing 310 are fixed to enclose the cavity 311.
As shown in fig. 2 and 3, the rotor assembly 200 is coaxially disposed at the center of the stator assembly 100, and an air gap is formed between the ten magnetic steels 230 and the tooth shoe 113; the ten magnetic steels 230 have radial magnetic fields, and the magnetic poles of the adjacent magnetic steels 230 are alternately arranged; the rotor assembly 200 and the stator assembly 100 are positioned within the cavity 311 of the housing 310, the stator assembly 100 is stationary with respect to the housing 310, and the shaft 220 passes through the housing 310 and is rotatably coupled thereto.
According to the motor easy to assemble, the stator core is formed by splicing a plurality of core monomers, the waste of silicon steel sheets is less, the material utilization rate is high, and the material cost is saved; the iron core monomers are convenient to wind, the winding efficiency is high, and the iron core monomers with the wound wires are assembled into the stator iron core, so that the stator iron core can be applied to large-scale automatic production, and the production efficiency is improved; a plurality of iron core monomers pass through stator yoke portion concatenation protruding connection and form annular stator core in adjacent concatenation recess, and the equipment is convenient.
As shown in fig. 5, the tooth shoe 113 is provided with a through groove 117 on the outer side surface thereof parallel to the axis. The penetration groove 117 can reduce the magnetic flux density by increasing the air gap, reduce the influence of the harmonic magnetic flux density, and reduce the noise during the operation of the motor. The through grooves 117 are rectangular grooves, and the number thereof is two. The two rectangular through slots 117 better reduce the noise during operation of the motor.
As shown in fig. 5, the outer side surface of the stator yoke 112 is provided with positioning grooves 118 parallel to the axis. As shown in fig. 7, the inner wall of the housing 310 is provided with a fitting groove 312 corresponding to the positioning groove 118, and positioning pins 313 are provided in the positioning groove 118 and the fitting groove 312 to limit the rotational displacement of the core unit 111. The positioning groove 118 is provided at a middle position of the outer side surface of the stator yoke portion 112 of each of the core units 111, and the positioning groove 118 and the fitting groove 312 are semi-cylindrical respectively. The insertion of the positioning pin 313 into the positioning groove 118 and the fitting groove 312 achieves circumferential positioning of the core unit 111 and the housing 310.
As shown in fig. 6, ten axial bar-shaped protrusions 211 are arranged on the outer cylindrical surface of the rotor core 210, and the circumferential positions of the magnetic steels 230 are located by the bar-shaped protrusions 211. The strip-shaped protrusion 211 facilitates the installation and fixation of the magnetic steel 230.
As shown in fig. 7, the housing 310 is provided with a first step 314 therein. As shown in fig. 3, the cover plate 320 is provided with a second step 321. As shown in fig. 2, the first step 314 and the second step 321 are respectively attached to both surfaces of the stator yoke portion 112 of the stator core 110 to axially position the stator assembly 100. The first step 314 and the second step 321 enable axial positioning of the stator assembly 100, ensuring that the stator assembly 100 does not move axially. The insertion of the positioning pins 313 into the positioning grooves 118 of the stator core 110 and the fitting grooves 312 in the housing 310, respectively, achieves circumferential positioning of the stator core 110 and the housing 310, i.e., the stator core 110 does not rotate relative to the housing 310. Finally, the stator assembly 100 is fixed on the housing 310, and is convenient to assemble, easy to disassemble and assemble.
As shown in fig. 2 and 3, the rotor assembly 200 further includes a first bearing 240 and a second bearing 250, and inner rings of the first bearing 240 and the second bearing 250 are positioned at both ends of the rotation shaft 220, respectively. As shown in fig. 2 and 7, the housing 310 has a bearing mounting position at a central position, and the outer race of the first bearing 240 is positioned inside the housing 310. As shown in fig. 2, the cover plate 320 has a bearing mounting position at a central position, and the outer race of the second bearing 250 is positioned inside the cover plate 320. The first bearing 240 and the second bearing 250 enable the rotor assembly 200 to rotate the rotation shaft 220.
As shown in fig. 3, the cover plate 320 includes a fixing plate 322 and a bearing seat plate 323, the fixing plate 322 is connected to the housing 310 by screws, the bearing seat plate 323 is fixed at a central position of the fixing plate 322 by screws, and the second bearing 250 is fixed inside the bearing seat plate 323. The cover plate 320 is divided into the fixing plate 322 and the bearing seat plate 323, which is beneficial to the installation of the rotor assembly 200 and the adjustment of the air gap between the magnetic steel 230 and the tooth shoe portion 113, and ensures the uniformity of the air gap.
The above-mentioned embodiments are merely provided for convenience of illustration of the present invention and are not intended to be limiting in form; any person skilled in the art can make local changes or modifications without departing from the scope of the present invention and the technical features and similar features disclosed in the present invention, and all equivalent embodiments using the technical content disclosed in the present invention belong to the protection scope of the present invention.
Claims (8)
1. An easily assembled electric machine, comprising:
the stator assembly is provided with a stator core and a winding, the stator core is of an annular structure formed by splicing a plurality of iron core monomers, the iron core monomers are of an I-shaped structure, one side of each iron core monomer is a stator yoke part, the other side of each iron core monomer is a tooth shoe part, and the middle of each iron core monomer is provided with stator teeth connected with the stator yoke part and the tooth shoe part; one end of each tooth boot part is provided with a splicing bulge, the other end of each tooth boot part is provided with a splicing groove, and the splicing bulges are connected in the adjacent splicing grooves; the windings are wound on the stator teeth respectively;
the rotor assembly is provided with a rotor core, a rotating shaft and a plurality of magnetic steels, wherein the rotor core is of a cylindrical structure, the rotating shaft penetrates through and is fixed at the central position of the rotor core, and the plurality of magnetic steels are circumferentially arranged and fixed along the outer cylindrical surface of the rotor core; and
the shell assembly is provided with a shell and a cover plate, the shell is provided with a cavity, and the cover plate and the shell are fixedly sealed with the cavity;
the rotor assembly is coaxially arranged at the center of the stator assembly, and air gaps are formed between the plurality of magnetic steels and the tooth boot parts; the rotor assembly and the stator assembly are positioned in the cavity of the shell, the stator assembly is fixed with the shell, and the rotating shaft penetrates through the shell and is rotatably connected with the shell.
2. An easily assembled electric motor as claimed in claim 1, wherein the tooth shoe outer side is provided with a through groove parallel to the axis.
3. The easy-to-assemble motor according to claim 1, wherein the outer side surface of the stator yoke is provided with a positioning groove parallel to the axis, the inner wall of the housing is provided with a matching groove corresponding to the positioning groove, and positioning pins are arranged in the positioning groove and the matching groove to limit the rotational displacement of the iron core unit.
4. The easy-to-assemble motor of claim 1, wherein the rotor core is provided with axial bar-shaped protrusions on the outer cylindrical surface, and the bar-shaped protrusions position the circumferential position of the magnetic steel.
5. The easy-to-assemble electric machine of claim 1, wherein the housing has a first step formed therein, the cover has a second step formed thereon, and the first and second steps are respectively attached to opposite sides of the stator core yoke to axially position the stator assembly.
6. The easy-to-assemble electric motor of claim 1, wherein the rotor assembly further comprises a first bearing and a second bearing, inner rings of the first bearing and the second bearing being positioned at both ends of the rotating shaft, respectively; the outer race of the first bearing is positioned inside the housing and the outer race of the second bearing is positioned inside the cover plate.
7. The easy-to-assemble electric motor of claim 6, wherein the cover plate comprises a fixing plate and a bearing seat plate, the fixing plate is connected to the housing, the bearing seat plate is fixed at a central position of the fixing plate, and the second bearing is fixed inside the bearing seat plate.
8. The easy-to-assemble electric machine according to claim 2, wherein the through slots are rectangular slots, and the number of the through slots is two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221280059.7U CN217642898U (en) | 2022-05-25 | 2022-05-25 | Motor of easily assembling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221280059.7U CN217642898U (en) | 2022-05-25 | 2022-05-25 | Motor of easily assembling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217642898U true CN217642898U (en) | 2022-10-21 |
Family
ID=83656688
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221280059.7U Active CN217642898U (en) | 2022-05-25 | 2022-05-25 | Motor of easily assembling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217642898U (en) |
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2022
- 2022-05-25 CN CN202221280059.7U patent/CN217642898U/en active Active
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