CN216851448U - Tooth yoke disconnect-type stator - Google Patents
Tooth yoke disconnect-type stator Download PDFInfo
- Publication number
- CN216851448U CN216851448U CN202220603833.7U CN202220603833U CN216851448U CN 216851448 U CN216851448 U CN 216851448U CN 202220603833 U CN202220603833 U CN 202220603833U CN 216851448 U CN216851448 U CN 216851448U
- Authority
- CN
- China
- Prior art keywords
- tooth
- yoke
- width
- notch
- stator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The utility model belongs to the technical field of the stator, concretely relates to tooth yoke disconnect-type stator. This tooth yoke disconnect-type stator includes: the inner wall of the yoke ring is provided with a plurality of inserting grooves; the stator teeth comprise tooth head parts, tooth body parts and tooth root parts, and the tooth root parts are matched with the insertion grooves in shape and are used for being in insertion connection with the insertion grooves; the tooth body part and the tooth root part are bound by a notch of the insertion groove, and the width of the tooth body part at the notch is equal to the width of the notch of the insertion groove. The utility model has the advantages that the width of the tooth body of the tooth yoke separated stator at the notch is equal to the width of the notch of the splicing groove, and the shoulder part can not be formed; in this kind of connected mode, the width of tooth body portion can all be used for supplying the magnetic line of force to pass through, makes the magnetic circuit of whole stator unobstructed.
Description
Technical Field
The utility model belongs to the technical field of the stator, concretely relates to tooth yoke disconnect-type stator.
Background
The tooth part and the yoke part in the existing motor stator are generally of an integral structure, when the motor stator is wound, a coil needs to be clamped into a wire slot from the center of the stator to the outside, and the coil is easy to damage in the extrusion process due to inconvenient operation space and small gaps between teeth; in addition, the coil exceeds the exposed part of the stator for a long time, the coil consumption of the product is large, and the cost is high.
For this purpose, a split-tooth stator assembly is known, the tooth ends of which are connected to the yoke by a snap connection. In the processing process, the coil can be wound on the tooth part in an external winding mode, and then the tooth part is combined with the yoke part. However, the magnetic circuit of the conventional tooth-yoke separated stator assembly is not smooth enough, so that the efficiency of the motor is poor.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a tooth yoke disconnect-type stator to solve current tooth yoke disconnect-type stator module's the not unobstructed technical problem of magnetic circuit enough.
In order to solve the technical problem, the utility model provides a tooth yoke disconnect-type stator, include: the inner wall of the yoke ring is provided with a plurality of inserting grooves; the stator teeth comprise tooth head parts, tooth body parts and tooth root parts, and the tooth root parts are matched with the insertion grooves in shape and are used for being in insertion connection with the insertion grooves; the tooth body part and the tooth root part are bound by a notch of the insertion groove, and the width of the tooth body part at the notch is equal to the width of the notch of the insertion groove.
Furthermore, the insertion groove comprises a groove bottom surface and two groove side surfaces; wherein the side surface of the groove is provided with at least one bulge facing the inside of the groove; and a concave part matched with the convex part is arranged on the tooth root part.
Furthermore, the convex part (113) is in an obtuse angle shape, and the included angle of the side edges of the convex part is 105-115 degrees.
Further, the recess starts from the boundary between the tooth body and the tooth root.
Furthermore, the plurality of stator teeth comprise straight teeth and bent teeth; the straight teeth and the bent teeth are arranged at intervals.
Furthermore, the width of the winding notch between the heads of the adjacent teeth is 0.3-1.2 mm.
Further, the width of the winding notches 24 between adjacent tooth heads 21 is 0.5 mm.
Furthermore, a connecting part is arranged between the adjacent tooth heads; the connecting part is provided with a notch.
Further, the width of the narrowest part of the connecting part along the radial direction of the stator is not more than 0.2 mm.
Further, the width of the notch is 0.3-1.2 mm.
Further, the width of the notch 251 is 0.5 mm.
Furthermore, the width of the yoke ring minus the groove depth of the inserting groove is F, and the ratio of the width of F to the width of the yoke ring 1 is 0.5-0.6: 1.
Further, the width ratio of the F to the tooth body part 22 is 0.7-0.8: 1.
The utility model has the advantages that the width of the tooth body of the tooth yoke separated stator at the notch is equal to the width of the notch of the splicing groove, and the shoulder part can not be formed; in this kind of connected mode, the width of tooth body portion can all be used for supplying the magnetic line of force to pass through, makes the magnetic circuit of whole stator unobstructed.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and drawings.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic view of a split yoke stator of the present invention;
fig. 2 and 3 are schematic views of a single stator tooth of a split tooth yoke stator of the present invention;
fig. 4 is a schematic view of a yoke ring of a split tooth-yoke stator according to the present invention;
fig. 5 is a schematic view of a winding slot of a split-yoke stator according to the present invention;
fig. 6 is a schematic view of the stator teeth of the split-yoke stator of the present invention;
FIG. 7 is an enlarged view at G of FIG. 6;
fig. 8 is a partially enlarged view of a yoke ring of the tooth-yoke split stator of the present invention;
FIG. 9 is a schematic view of a dovetail connection.
In the figure:
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The tooth part and the yoke part of the existing tooth yoke separation type stator assembly are connected in a dovetail structure, as shown in fig. 9, the inserting groove in the inner wall of the yoke ring 1 is a dovetail groove, and the shape of the tooth root part 23 is matched with the dovetail groove. The width of tooth body portion 22 and the width of root of tooth 23 are greater than because of the width of tooth body portion 22 at the tooth body portion 23 junction, and tooth body portion 22 forms two shoulders 26 with root of tooth 23 junction, and the tooth yoke disconnect-type stator module that adopts this kind of connected mode's magnetic circuit is not enough unobstructed.
Examples
As shown in fig. 1, 2 and 3, the present embodiment provides a tooth-yoke split stator including: the inner wall of the yoke ring 1 is provided with a plurality of inserting grooves 11; the stator teeth 2 comprise tooth head parts 21, tooth body parts 22 and tooth root parts 23, and the tooth root parts 23 are matched with the insertion groove 11 in shape and are used for being connected with the insertion groove 11 in an insertion manner; the tooth body portion 22 and the tooth root portion 23 are bound by the notch 12 of the insertion slot 11, and the width a of the tooth body portion 22 at the notch 12 is equal to the width B of the notch 12 of the insertion slot 11.
In this embodiment, the width a of the tooth body portion 22 at the notch 12 is equal to the width B of the notch 12 of the insertion slot 11, and the shoulder 26 is not formed; in this connection, the width of the tooth body 22 can be entirely used for the magnetic lines of force to pass through, so that the magnetic circuit of the whole stator is smooth.
In this embodiment, optionally, the tooth root 23 and the insertion groove 11 may be in interference fit, and the tooth root 23 may fill the insertion groove 11.
In this embodiment, preferably, the insertion slot 11 includes a slot bottom 111 and two slot sides 112; wherein the groove side 112 is provided with at least one protrusion 113 facing into the groove; the tooth root portion 23 is provided with a recessed portion 231 adapted to the protruding portion 113.
As an alternative to the connection method of the present embodiment, as shown in fig. 2, both sides of the tooth root 23 are provided with the concave portions 231, which may be in the shape of a firing angle, that is, both groove sides 112 of the connecting groove 11 are provided with the convex portions 113 (see fig. 4); as shown in fig. 3, both sides of the tooth root 23 are provided with a plurality of recesses 231, which may be formed like a saw-tooth, that is, both groove sides 112 of the socket 11 are provided with a plurality of protrusions 113.
In this embodiment, the protruding portion 113 may be in an obtuse angle shape, and the included angle between the side edges thereof is 105 ° to 115 °, so that the magnetic conduction effect is good within this angle range.
Of course, in other alternative embodiments, the shapes of the concave portion 231 and the convex portion 113 may also be square, circular arc, and the like, which are not illustrated herein.
As shown in fig. 2 and 3, in the present embodiment, it is preferable that the recessed portion 231 starts from the boundary of the tooth body portion 22 and the tooth root portion 23; this avoids the formation of shoulders 26.
As shown in fig. 1, in the present embodiment, the plurality of stator teeth 2 include straight teeth 201 and bent teeth 202; the straight teeth 201 and the bent teeth 202 are arranged at intervals.
Of course, in other embodiments, the stator teeth 2 may be both straight teeth or both bent teeth.
It is known in the art that between adjacent stator teeth 2 are winding slots, and inside the tooth heads 21 of the stator teeth 2 arranged in a ring shape is a rotor hole.
As an alternative to this embodiment, the width C of the winding notches 24 between adjacent tooth heads 21 is 0.3-1.2mm, as shown in fig. 5.
In the embodiment, the adjacent tooth heads 21 are not conducted, but the width C of the winding notch 24 is too large, which reduces the motor efficiency and increases the motor noise, and too small, which causes the influence of magnetic lines of force between the adjacent tooth heads 21, thereby reducing the motor efficiency, so that the width of the winding notch 24 is 0.3-1.2 mm; c may be, but is not limited to, 0.3mm, 0.4mm, 0.5mm, 0.6mm, 0.7mm, 0.8mm, 1.0mm, 1.2 mm; preferably 0.5 mm.
As shown in fig. 6 and 7, as a further alternative embodiment of the present embodiment, a connecting portion 25 is provided between adjacent tooth head portions 21; the connecting portion 25 is provided with a notch 251.
In the embodiment, in order to improve the assembly efficiency in the production process, the plurality of stator teeth 2 are connected into a whole through the connecting part 25, so that the stator teeth can be integrally assembled; the notch 251 may be opened at a side of the connection portion 25 adjacent to the rotor hole.
As shown in fig. 7, in the present embodiment, in order to avoid reducing the overall magnetic permeability of the stator after the connection portion 25 conducts the adjacent tooth head portions 21, the width E of the narrowest portion of the connection portion 25 in the stator radial direction is not greater than 0.2 mm; in addition, the width D of the gap 251 may be limited to a range of 0.3-1.2mm, and an excessively large or small range may affect the magnetic conduction efficiency, but is not limited to 0.3mm, 0.4mm, 0.5mm, 0.6mm, 0.7mm, 0.8mm, 1.0mm, 1.2 mm; preferably 0.5 mm.
In this embodiment, preferably, the width of the yoke 1 minus the groove depth of the inserting groove 11 is F, and the ratio of the width G of the yoke 1 to the width F is 0.5-0.6: 1; in this range, the entire magnetic circuit of the stator is unobstructed.
In this embodiment, preferably, the ratio of the width a of the tooth body 22 to the width F is 0.7-0.8: 1; in this range, the entire magnetic circuit of the stator is unobstructed.
In conclusion, the tooth body 22 of the tooth yoke separated stator at the notch 12 has a width equal to the width of the notch 12 of the inserting slot 11, and the shoulder 26 is not formed; in this connection, the width of the tooth body 22 can be entirely used for the magnetic lines of force to pass through, so that the magnetic circuit of the whole stator is smooth.
The components selected for use in the present application (components not illustrated for specific structures) are all common standard components or components known to those skilled in the art, and the structure and principle thereof can be known to those skilled in the art through technical manuals or through routine experimentation.
In the description of the embodiments of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (13)
1. A split-tooth-yoke stator, comprising:
the inner wall of the yoke ring (1) is provided with a plurality of inserting grooves (11);
the stator teeth (2) comprise tooth head parts (21), tooth body parts (22) and tooth root parts (23), and the tooth root parts (23) are matched with the insertion groove (11) in shape and are used for being connected with the insertion groove (11) in an insertion manner; wherein
The tooth body part (22) and the tooth root part (23) are bounded by a notch (12) of the insertion groove (11), and the width of the tooth body part (22) at the notch (12) is equal to the width of the notch (12) of the insertion groove (11).
2. The yoke-split stator according to claim 1,
the insertion groove (11) comprises a groove bottom surface (111) and two groove side surfaces (112); wherein
The side surface (112) of the groove is provided with at least one bulge (113) facing the inside of the groove;
the tooth root part (23) is provided with a concave part (231) matched with the convex part (113).
3. The yoke-split stator according to claim 2,
the convex part (113) is in an obtuse angle shape, and the included angle of the side edges of the convex part is 105-115 degrees.
4. The yoke-split stator according to claim 2,
the recessed portion (231) starts from the boundary between the tooth body portion (22) and the tooth root portion (23).
5. The yoke-split stator according to claim 1,
the plurality of stator teeth (2) comprise straight teeth (201) and bent teeth (202);
the straight teeth (201) and the bent teeth (202) are arranged at intervals.
6. The tooth yoke split stator according to claim 1 or 5,
the width of the winding notch (24) between the adjacent tooth heads (21) is 0.3-1.2 mm.
7. The yoke-split stator according to claim 6,
the width of the winding notch (24) between the adjacent tooth heads (21) is 0.5 mm.
8. The tooth yoke split stator according to claim 1 or 5,
a connecting part (25) is arranged between the adjacent tooth head parts (21);
the connecting part (25) is provided with a notch (251).
9. The split-tooth yoke stator according to claim 8,
the width of the narrowest part of the connecting part (25) along the radial direction of the stator is not more than 0.2 mm.
10. The split-tooth yoke stator according to claim 8,
the width of the notch (251) is 0.3-1.2 mm.
11. The split-tooth yoke stator according to claim 8,
the width of the notch (251) is 0.5 mm.
12. The yoke-split stator according to claim 1,
the width of the yoke ring (1) minus the depth of the inserting groove (11) is F, and the width ratio of F to the yoke ring (1) is 0.5-0.6: 1.
13. the split-tooth yoke stator according to claim 12,
the width ratio of the F to the tooth body part (22) is 0.7-0.8: 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220603833.7U CN216851448U (en) | 2022-03-18 | 2022-03-18 | Tooth yoke disconnect-type stator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220603833.7U CN216851448U (en) | 2022-03-18 | 2022-03-18 | Tooth yoke disconnect-type stator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216851448U true CN216851448U (en) | 2022-06-28 |
Family
ID=82097127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220603833.7U Active CN216851448U (en) | 2022-03-18 | 2022-03-18 | Tooth yoke disconnect-type stator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216851448U (en) |
-
2022
- 2022-03-18 CN CN202220603833.7U patent/CN216851448U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN216851448U (en) | Tooth yoke disconnect-type stator | |
| CN105634161B (en) | Stator punching, field frame assembly, field frame assembly assemble method and motor | |
| CN212137425U (en) | Compact motor | |
| CN115632502A (en) | Stator, motor and compressor | |
| CN212258597U (en) | Insulating skeleton, motor and compressor | |
| CN212627348U (en) | 2KW switch reluctance motor punching sheet | |
| CN217087591U (en) | Joint formula stator structure and motor | |
| CN211209395U (en) | Stator core assembly and axial magnetic field motor with same | |
| CN216904442U (en) | Tooth yoke separated stator for motor and motor | |
| CN217255848U (en) | Riveted structure of turning piece and stamping part | |
| CN212588152U (en) | Spliced stator assembly, motor and compressor | |
| CN210201621U (en) | Motor shaft core fixer | |
| CN201397798Y (en) | Blocking structure for conductive cap of lamp cap | |
| CN218792586U (en) | Novel toothbrush head structure | |
| CN214958960U (en) | Reliability connection structure of motor rotor shell and rotating shaft | |
| CN215835304U (en) | Efficient stable mute claw-pole permanent magnet synchronous motor | |
| CN214799076U (en) | Stator and motor with same | |
| CN212849995U (en) | Spliced stator assembly, motor and compressor | |
| CN212063650U (en) | Iron core with multiple fixing modes | |
| CN213697294U (en) | Mounting structure of electric toothbrush | |
| CN215120339U (en) | Multipurpose outer rotor DC brushless motor mounting bracket | |
| CN215120316U (en) | Stator of claw-pole motor | |
| CN211377787U (en) | Motor lead structure | |
| CN216216391U (en) | Hall element fixing structure | |
| CN219181250U (en) | Brushless motor stator assembly |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |