CN216134333U - Armature assembly of external rotor motor - Google Patents
Armature assembly of external rotor motor Download PDFInfo
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- CN216134333U CN216134333U CN202122653823.2U CN202122653823U CN216134333U CN 216134333 U CN216134333 U CN 216134333U CN 202122653823 U CN202122653823 U CN 202122653823U CN 216134333 U CN216134333 U CN 216134333U
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- hook
- end cover
- wire harness
- stator core
- front side
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Abstract
The utility model discloses an armature assembly of an outer rotor motor, which comprises a stator core, a stator winding, a back side insulating end cover and a front side insulating end cover, wherein three metal protection hooks are fixed on the front side insulating end cover; the metal protection hook comprises protection hook bodies fixed with the front insulating end covers in an inserted mode, each protection hook body is provided with a connecting rod hook portion convenient to insert a corresponding conductive connecting rod, the protection hook body is further provided with two wire harness hook portions, each wire harness hook portion is provided with a hook wire groove, each hook wire groove comprises a back side groove face, a front side groove face and a connecting arc face connecting the back side groove face and the front side groove face, included angles between the back side groove face and the front side groove face and an axial lead of the stator core are 85-90 degrees, and an opening of each hook wire groove faces to the center of the stator core. The armature assembly can meet the winding of a stator winding with a denser wire harness, and meanwhile, the insulation skin of the wire harness in the wire hooking groove of the wire metal protective hook can be damaged and reliably welded during clamp welding.
Description
Technical Field
The utility model relates to an armature assembly, in particular to an armature assembly on an outer rotor motor driven by an automobile cooling fan.
Background
In recent years, motors used for driving cooling fans of automobiles are generally brushless motors, the brushless motors can be controlled by a PCBA board, and the running state of the motors can be better controlled, while the existing external rotor motors comprise an external rotor, a controller component and an armature component, the armature component is used for electrically connecting a wire harness winding with the PCBA board of the controller component through a conductive connecting rod on a conductive support, a metal protection hook is embedded on an insulation end cover of the armature component, the metal protection hook is provided with a connecting rod hook part convenient for the connection of the conductive connecting rod and a wire harness hook part convenient for the wire harness to pass through, however, when the output power of the brushless motor is increased, for example, the output power is increased to 600W, the number of the wire harnesses of the armature winding is increased, the number of the wire harness winding bypassing the wire harness hook part is increased, the existing wire harness hook part obviously does not meet the winding of the wire harness, and meanwhile, the insulation skin on the outer layer of the wire harness is damaged during clamping welding, therefore, the wire harness and the metal protection hook are welded together, however, due to the fact that the number of the wire harnesses wound on the hook portion of the wire harness is large, the crossing condition can occur between the wire harnesses, the wire harness outer layer insulating skin possibly wrapped inside the hook portion of the wire harness is not damaged during clamping welding, and therefore the wire harness is not electrically connected with other wire harnesses, and therefore the wiring of the armature assembly can be wrong and cannot work normally.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is as follows: provided is an armature assembly of an outer rotor motor, which can satisfy the winding of a stator winding of a denser wire harness, and at the same time, can reliably weld by destroying an insulation skin of the wire harness in a wire hooking groove of a wire metal protective hook during clamp welding.
In order to solve the technical problems, the technical scheme of the utility model is as follows: an armature assembly of an outer rotor motor comprises a stator core, a back side insulating end cover and a front side insulating end cover, wherein the back side insulating end cover and the front side insulating end cover are respectively fixed at the back side end and the front side end of the stator core; the metal protection hook comprises a protection hook body fixed with a front insulating end cover in a plug-in mounting mode, a connecting rod hook portion convenient to correspond and inserted into a conductive connecting rod is arranged on each protection hook body, two wire harness hook portions are further arranged on each protection hook body, a hook line groove convenient for a wire harness to stride across is formed in each wire harness hook portion, each hook line groove comprises a back side groove face, a front side groove face and a connecting arc face connecting the back side groove face and the front side groove face, included angles between the back side groove face and the front side groove face and an axial lead of a stator core are 85-90 degrees, and an opening of each hook line groove faces to the center of the stator core.
Preferably, the back side slot surface and the front side slot surface are parallel to each other and form an angle of 90 ° with the axial lead of the stator core.
Preferably, the distance between the back-side groove surface and the front-side groove surface is greater than the diameter of one wire harness and less than the diameter of two wire harnesses
Preferably, the wire harness hook is provided with a flared guide portion at the opening.
As a preferred scheme, the front insulating end cover is of a split structure, the front insulating end cover comprises a front tooth end cover part and a middle phase ring, the front tooth end cover part is fixed on the front side of the tooth part of the stator core in a one-to-one correspondence manner, the middle phase ring is fixed in the middle of the stator core, and the metal protection hooks are fixed on the middle phase ring in an inserted manner.
As a preferred scheme, the outside and the inboard of front tooth end cover portion are provided with front outer positioning protrusion and front inner positioning protrusion respectively, back insulating end cover includes middle insulating ring portion and a plurality of back tooth end cover portion of connecting the middle insulating ring portion outside, and the outside and the inboard of every back tooth end cover portion are provided with back outer positioning protrusion and back inner positioning protrusion respectively, and back outer positioning protrusion and front outer positioning protrusion constrain the outside end of wire harness winding jointly, and back inner positioning protrusion and front inner positioning protrusion constrain the inboard end of wire harness winding jointly.
As a preferable scheme, a wiring groove for facilitating wiring of a wiring harness is further arranged on the front end face of the middle phase ring.
After the technical scheme is adopted, the utility model has the effects that: because the metal protection hook comprises protection hook bodies inserted and fixed with the front insulating end cover, each protection hook body is provided with a connecting rod hook part for facilitating the insertion of a corresponding conductive connecting rod, the protection hook body is also provided with two wire harness hook parts, the wire harness hook parts are provided with wire hooking grooves for facilitating the crossing of a wire harness, each wire hooking groove comprises a back side groove surface, a front side groove surface and a connecting cambered surface for connecting the back side groove surface and the front side groove surface, the included angle between the back side groove surface and the front side groove surface and the axial lead of the stator core is 85-90 degrees, the opening of each wire hooking groove faces to the center of the stator core, therefore, the connecting rod hook parts of the metal protection hook can be conveniently welded and fixed with the conductive connecting rods, and simultaneously, the metal protection hook is provided with the two wire harness hook parts, not only can conveniently select the wire harness hook parts at proper positions during winding, but also can conveniently wind the winding of a more powerful outer rotor motor, and the included angle between the back side groove surface and the positive side groove surface of the wire hooking groove and the axial lead of the stator core is 85-90 degrees, so that the wire harnesses can be sequentially wound on the back side groove surface of the wire hooking groove and arranged neatly during winding, the condition of wire harness intersection caused by overlarge inclination angle is avoided, when in clamp welding, the back side groove surface and the positive side groove surface of the wire hooking groove are mutually closed to damage the insulating skin of all the wire harnesses in the wire hooking groove, thus each wire harness can be well welded, and the armature assembly can work more reliably.
And because the wire harness hook part is provided with the flared guide part at the opening, the guide part can facilitate the wire harness to better enter the wire hooking groove during winding.
And because the distance between the back side groove surface and the front side groove surface is larger than the diameter of one wire harness and smaller than the diameters of two wire harnesses, the wire harness can conveniently enter the wire hooking groove during winding and can simultaneously ensure that the wire harness cannot cross.
And because the front insulating end cover is of a split structure and comprises a front tooth end cover part and a middle phase ring, the front tooth end cover part is fixed on the front side of the tooth part of the stator core in a one-to-one correspondence manner, the middle phase ring is fixed in the middle of the stator core, and the metal protection hooks are inserted and fixed on the middle phase ring, so that the middle phase ring and the front tooth end cover part can be better and independently molded by injection.
And because the outside and the inboard of the front tooth end cover part are respectively provided with a front outer positioning bulge and a front inner positioning bulge, the back insulation end cover comprises a middle insulation ring part and a plurality of back tooth end cover parts connected with the outside of the middle insulation ring part, the outside and the inboard of each back tooth end cover part are respectively provided with a back outer positioning bulge and a back inner positioning bulge, the back outer positioning bulge and the front outer positioning bulge jointly restrain the outside end of the wire harness winding, and the back inner positioning bulge and the front inner positioning bulge jointly restrain the inside end of the wire harness winding, therefore, the wire harness can be better restrained and wound on the back tooth end cover part and the front tooth end cover part in the winding process, and the wire harness is cleaner.
And because the wiring groove for facilitating wiring harness routing is also arranged on the front end face of the middle phase ring, wiring of the wiring harness can be better facilitated.
Drawings
The utility model is further illustrated with reference to the following figures and examples.
FIG. 1 is a perspective view of an embodiment of the present invention;
FIG. 2 is a perspective view of another angle of an embodiment of the present invention;
FIG. 3 is a perspective view of an interphase ring and three metal guard hooks;
FIG. 4 is a side view of a metal guard hook;
in the drawings: 1. a stator core; 2. a back side insulating end cap; 3. positioning bulges are arranged outside the back surface; 4. an inner positioning bulge is arranged on the back surface; 5. the front surface is provided with a positioning bulge; 6. an inner positioning bulge is arranged on the front surface; 7. an intermediate phase ring; 8. a metal protection hook; 81. a hook protection body; 82. a protective hook is inserted with a pin; 83. a wire harness hook portion; 84. a connecting rod hook portion; 85. a back-side pocket surface 85; 86. a front side groove surface; 9. a wiring groove; 10. embedding the pins in a ring; 11. and a stator winding.
Detailed Description
The present invention is described in further detail below with reference to specific examples.
As shown in fig. 1 to 4, an armature assembly of an external rotor motor includes a stator core 1, and a back insulating end cover 2 and a front insulating end cover respectively fixed to a back end and a front end of the stator core 1, wherein a stator winding 11 is wound between the back insulating end cover 2 and the front insulating end cover, three metal protection hooks 8 are fixed on the front insulating end cover, and the stator winding 11 is wound according to a winding rule and spans over the metal protection hooks 8 to be fixed to the metal protection hooks 8 by clamping welding, so that the stator winding 11 forms a three-phase winding; wherein the metal protection hook 8 comprises a protection hook body 81 inserted and fixed with the front insulating end cover, a protection hook insertion pin 82 is arranged on the protection hook body 81, the protection hook body 81 is inserted and fixed in the slot of the front insulating end cover through the protection hook insertion pin 82, a connecting rod hook part 84 convenient for inserting a corresponding conductive connecting rod is arranged on each protection hook body 81, the hook body 81 is also provided with two wire harness hook parts 83, the wire harness hook parts 83 are provided with wire hooking grooves for the wire harnesses to pass through conveniently, the hook wire groove comprises a back side groove surface 85, a front side groove surface 86 and a connecting arc surface connecting the back side groove surface 85 and the front side groove surface 86, the included angles between the back side slot surface 85 and the front side slot surface 86 and the axial lead of the stator core 1 are 85-90 degrees, preferably, the back side slot surface 85 and the front side slot surface 86 are parallel to each other and form an included angle of 90 degrees with the axial lead of the stator core 1. The opening of the slot is towards the center of the stator core 1. Further, the distance between the back side groove surface 85 and the front side groove surface 86 is larger than the diameter of one wire harness and smaller than the diameter of two wire harnesses, and the wire harness hook portion 83 is provided with a flared guide portion at the opening, so that the wire harnesses can enter conveniently.
In this embodiment, the front insulating end cap is a split structure, the front insulating end cap includes a front tooth end cap portion and a middle phase ring 7, the front tooth end cap portion is fixed on the tooth portion front side of the stator core 1 in a one-to-one correspondence manner, the inner sides of the front tooth end cap portions can be connected together through a connection ring, so as to be formed together, the middle phase ring 7 is fixed in the middle of the stator core 1, the fixing manner is that a phase ring insert 10 is arranged on the middle phase ring 7, the phase ring insert 10 is inserted into a through hole in the middle of the stator core to be fixed, and the metal protection hook 8 is inserted and fixed on the middle phase ring 7. And a wiring groove 9 for facilitating wiring of a wiring harness is further arranged on the front end face of the middle phase ring 7.
The outer side and the inner side of the front tooth end cover part are respectively provided with a front outer positioning bulge 5 and a front inner positioning bulge 6, the back insulation end cover 2 comprises a middle insulation ring part and a plurality of back tooth end cover parts connected with the outer side of the middle insulation ring part, the outer side and the inner side of each back tooth end cover part are respectively provided with a back outer positioning bulge 3 and a back inner positioning bulge 4, the back outer positioning bulge 3 and the front outer positioning bulge 5 jointly constrain the outer end of the wire harness winding, and the back inner positioning bulge 4 and the front inner positioning bulge 6 jointly constrain the inner end of the wire harness winding. Therefore, the inner side and the outer side of the wire harness are limited during wire winding, and the condition of wire winding deviation is not easy to occur
The above-mentioned embodiments are merely descriptions of the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and various modifications and alterations made to the technical solution of the present invention without departing from the spirit of the present invention are intended to fall within the scope of the present invention defined by the claims.
Claims (7)
1. An armature assembly of an outer rotor motor comprises a stator core, a back side insulating end cover and a front side insulating end cover, wherein the back side insulating end cover and the front side insulating end cover are respectively fixed at the back side end and the front side end of the stator core; the method is characterized in that: the metal protection hook comprises a protection hook body fixed with a front insulating end cover in a plug-in mounting mode, a connecting rod hook portion convenient to correspond and inserted into a conductive connecting rod is arranged on each protection hook body, two wire harness hook portions are further arranged on each protection hook body, a hook line groove convenient for a wire harness to stride across is formed in each wire harness hook portion, each hook line groove comprises a back side groove face, a front side groove face and a connecting arc face connecting the back side groove face and the front side groove face, included angles between the back side groove face and the front side groove face and an axial lead of a stator core are 85-90 degrees, and an opening of each hook line groove faces to the center of the stator core.
2. An armature assembly of an external rotor motor according to claim 1, wherein: the back side slot surface and the front side slot surface are parallel to each other and form an included angle of 90 degrees with the axial lead of the stator core.
3. An armature assembly of an external rotor motor according to claim 2, wherein: the distance between the back-side groove surface and the front-side groove surface is greater than the diameter of one wire harness and less than the diameter of two wire harnesses.
4. An armature assembly of an external rotor motor according to claim 3, wherein: and a flared guide part is arranged at the opening of the wire harness hook part.
5. An armature assembly of an external rotor motor according to claim 4, wherein: the front insulating end cover is of a split structure and comprises a front tooth end cover portion and a middle phase ring, the front tooth end cover portion is fixed on the front side of a tooth portion of the stator core in a one-to-one correspondence mode, the middle phase ring is fixed in the middle of the stator core, and the metal protection hooks are fixed on the middle phase ring in an inserted mode.
6. An armature assembly of an external rotor motor according to claim 5, wherein: the outside and the inboard of front tooth end cap portion are provided with front outer positioning protrusion and front inner positioning protrusion respectively, back insulating end cover includes middle insulating ring portion and a plurality of back tooth end cap portion of connecting the middle insulating ring portion outside, and the outside and the inboard of every back tooth end cap portion are provided with back outer positioning protrusion and back inner positioning protrusion respectively, and back outer positioning protrusion retrains the outside end of pencil winding with front outer positioning protrusion jointly, and back inner positioning protrusion retrains the medial extremity of pencil winding with front inner positioning protrusion jointly.
7. An armature assembly of an external rotor electric machine according to claim 6, wherein: and a wiring groove for facilitating wiring of a wiring harness is further arranged on the front end face of the middle phase ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122653823.2U CN216134333U (en) | 2021-11-02 | 2021-11-02 | Armature assembly of external rotor motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122653823.2U CN216134333U (en) | 2021-11-02 | 2021-11-02 | Armature assembly of external rotor motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216134333U true CN216134333U (en) | 2022-03-25 |
Family
ID=80773746
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122653823.2U Active CN216134333U (en) | 2021-11-02 | 2021-11-02 | Armature assembly of external rotor motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216134333U (en) |
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2021
- 2021-11-02 CN CN202122653823.2U patent/CN216134333U/en active Active
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Address after: No. 8, Xinfeng Hexi Road, Tangshi, Yangshe Town, Zhangjiagang City, Suzhou City, Jiangsu Province 215600 Patentee after: Jiangsu Langxin Electric Co.,Ltd. Address before: 215600 2 Fuxin Road, Yang Shi Town, Zhangjiagang, Suzhou, Jiangsu Patentee before: JIANGSU LANGXIN ELECTRIC Co.,Ltd. |