CN216056552U - Block back-wound stator insulation framework - Google Patents
Block back-wound stator insulation framework Download PDFInfo
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- CN216056552U CN216056552U CN202122176275.9U CN202122176275U CN216056552U CN 216056552 U CN216056552 U CN 216056552U CN 202122176275 U CN202122176275 U CN 202122176275U CN 216056552 U CN216056552 U CN 216056552U
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Abstract
The utility model belongs to the technical field of permanent magnet synchronous motor insulation, and particularly relates to a partitioned back-wound stator insulation framework. The utility model discloses a partitioned back-wound stator insulation framework, which comprises a left side part and a right side part, wherein the left side part and the right side part form an included angle and are connected together through a winding part, the middle part of the left side part and the right side part is a recessed part, the two sides of the left side part and the right side part are coil blocking parts, the center part of the recessed part is of a hollow structure, and the hollow structure is used for supporting a stator iron core. The insulating process is simple and reliable, only the insulating framework needs to be directly embedded into a single iron core, the coil blocking part is arranged at the end part of the insulating framework, the coil can be prevented from deviating during winding, the coil can be uniform and compact, the wire outlet groove is formed in the coil blocking part, the coil is convenient to complete, the coil is completely embedded into the insulating framework, the problem of interference between the coil and a machine shell does not exist, and the stator assembly is not influenced when being thermally sleeved into the machine shell.
Description
Technical Field
The utility model belongs to the technical field of permanent magnet synchronous motor insulation, and particularly relates to a partitioned back-wound stator insulation framework.
Background
In the manufacturing process of the motor, when a motor stator is wound with a coil, an insulating layer is embedded between the coil and the stator, and then the dipping treatment is carried out. The traditional method is that the green shell insulating paper is embedded, then the slot wedge is inserted to tightly plug the coil, and then the dip coating treatment is carried out. At present, small micromotors gradually adopt an insulation process scheme of an insulation framework, and the process improves the production efficiency and the insulation reliability.
In the existing motor stator insulation framework scheme, the stator insulation framework is designed for a conventional stator core and comprises an integral stator core and a spliced segmented stator core. The back-wound motor gradually draws attention due to the advantages of high power density, high efficiency and the like, and the scheme of designing an insulating framework for a stator core of the back-wound motor is also important.
Disclosure of Invention
The utility model aims to overcome the defects in the prior art and provide a partitioned back-wound stator insulation framework. The insulating framework can provide reliable insulativity for the partitioned back-wound stator core; the winding process is simple, and the outgoing line and the incoming line are convenient; meanwhile, the requirement of winding is met, the coil conducting wires are completely gathered, the deviation is prevented, and the appearance is neat.
In order to achieve the technical purpose, the embodiment of the utility model adopts the technical scheme that: the utility model provides a blocking back of body around formula stator insulation skeleton, includes left side portion and right side portion, left side portion is the contained angle setting with right side portion to link together through winding portion, left side portion is the depressed part with the middle part of right side portion, and both sides are coil flange portion, the central point of depressed part is hollow out construction, hollow out construction is used for supporting stator core.
The thickness of the coil flange part is larger than that of the sunken part, and the coil flange part is provided with an inlet wire groove and an outlet wire groove.
Stator core includes the stator internal tooth and follows the radial root of tooth that extends of stator internal tooth and be located the stator external tooth on root of tooth top, one side of root of tooth is provided with stator yoke portion, stator yoke portion's free end is provided with the bellying, root of tooth's opposite side corresponds the position and is provided with the recess, and adjacent stator core unit passes through the bellying and forms annular structure with the recess grafting.
The shape and the size of the hollowed-out structure are matched with the stator yoke, and the stator yoke is nested in the hollowed-out structure.
The width of left side portion and right side portion is less than a little the length of root of tooth, left side portion and right side portion pass through depressed part and root of tooth joint.
The size of the included angle meets the following conditions: when the stator yoke portion is nested in the hollow structure, the protruding portion extends to the outside of the outer end face of the left side portion or the right side portion, and the protruding portion and the groove can be connected in an inserting mode.
The insulating framework is integrally formed, and the stator core is integrally formed.
The technical scheme provided by the embodiment of the utility model has the following beneficial effects:
(1) the partitioned back-wound stator insulation framework comprises a left side part and a right side part, wherein the left side part and the right side part form an included angle and are connected together through a winding part, a concave part is arranged in the middle of the left side part and the right side part, coil blocking parts are arranged on two sides of the left side part and the right side part, the center part of the concave part is of a hollow structure, the hollow structure is used for supporting a stator iron core, and the insulation scheme of the partitioned back-wound stator iron core can be met.
(2) The coil edge blocking part is arranged at the end part of the insulating framework, so that the coil is not deviated during winding, and the winding is uniform and compact; coil flange portion is provided with into outlet wire groove, and the outward appearance overall arrangement is comparatively clean and tidy during coil coiling.
(3) The insulating framework has a simple structure and reliable insulating property.
Drawings
Fig. 1 is a schematic structural diagram of a back-wound stator insulation framework according to the present invention.
Fig. 2 is a schematic structural view of a segmented back-wound stator core according to the present invention.
Fig. 3 is a schematic view of an assembly structure of the stator insulating frame in fig. 1 and the stator core in fig. 2.
Description of reference numerals: 1-left lateral part; 2-right side; 3-a winding part; 4-a stator core; 5-a recess; 6-coil edge blocking part; 7-inlet and outlet wire grooves; 41-stator internal teeth; 42-root of tooth; 43-stator external teeth; 44-a stator yoke; 45-a boss; 46-groove.
Detailed Description
In the description of the present invention, it is to be understood that the directions or positional relationships indicated by the directional terms such as "upper, lower", "left, right", etc., are generally based on the directions or positional relationships shown in the drawings only for the convenience of describing the present invention and simplifying the description, and in the case of not making a reverse description, these directional terms do not indicate and imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and thus, should not be construed as limiting the scope of the present invention.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further 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 utility model and are not intended to limit the utility model.
Example 1
As shown in fig. 1, a blocking back winding type stator insulation framework comprises a left side portion 1 and a right side portion 2, the left side portion 1 and the right side portion 2 are arranged at an included angle and connected together through a winding portion 3, the middle portions of the left side portion 1 and the right side portion 2 are recessed portions 5, two sides of each recessed portion are coil blocking portions 6, the center portion of each recessed portion 5 is a hollow structure, and the hollow structure is used for supporting a stator core 4.
The thickness of the coil edge part 6 is larger than that of the recess part 5, and an inlet and outlet wire groove 7 is formed in the coil edge part 6.
As shown in fig. 2, the stator core 4 includes stator internal teeth 41, tooth roots 42 radially extending from the stator internal teeth 41, and stator external teeth 43 located at the top ends of the tooth roots 42, a stator yoke 44 is disposed on one side of the tooth roots 42, a protruding portion 45 is disposed at a free end of the stator yoke 44, a groove 46 is disposed at a corresponding position on the other side of the tooth roots 42, and adjacent stator core units are inserted into the groove 46 through the protruding portion 45 to form a ring structure.
The shape and size of the hollowed-out structure are matched with those of the stator yoke 44, and the stator yoke 44 is nested in the hollowed-out structure. The stator yoke 44 is an arc-shaped surface, the stator yoke 44 forms a circular ring-shaped structure after a plurality of stator cores are spliced together through the convex portions 45 and the grooves 46, meanwhile, the stator inner teeth 41 form an inner circular ring structure, and the stator outer teeth 43 form an outer circular ring structure.
The width of the left side part 1 and the right side part 2 is slightly smaller than the length of the tooth root part 42, and the left side part 1 and the right side part 2 are clamped with the tooth root part 42 through the concave part 5.
The size of the included angle meets the following conditions: when the stator yoke 44 is nested in the hollow structure, the protruding portion 45 extends to the outside of the outer end face of the left side portion 1 or the right side portion 2, so that the protruding portion 45 and the groove 46 can be inserted together.
The insulating framework is integrally formed, and the stator core 4 is integrally formed.
As shown in fig. 3, during the assembly, the free end of stator yoke portion 44 inserts in the hollow out construction of insulating skeleton to realize adjacent stator core's plug-in connection through bellying 45 and recess 46, the up end laminating of each stator yoke portion is on the lower surface of winding portion 3, and is in the same place through the cooperation joint of root of tooth 42 with depressed part 5, realizes insulating skeleton to stator core's support, can implement the wire winding to single stator core subassembly like this.
Compared with the existing stator assembly, the insulation process is simple and reliable, only the insulation framework needs to be directly embedded into a single iron core, the coil blocking part is arranged at the end part of the insulation framework, so that the coil deviation in the winding process can be avoided, the coil can be uniform and compact, the wire outlet groove is formed in the coil blocking part, the coil is convenient to complete, the coil is completely embedded on the insulation framework, the problem of interference between the coil and a shell does not exist, and the stator assembly is not influenced when being thermally sleeved into the shell.
Finally, it should be noted that the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to examples, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.
Claims (7)
1. The utility model provides a blocking is around formula stator insulation skeleton on the back, a serial communication port, including left side portion (1) and right side portion (2), left side portion (1) is the contained angle setting with right side portion (2) to link together through wire winding portion (3), left side portion (1) is depressed part (5) with the middle part of right side portion (2), and both sides are coil flange portion (6), the central point of depressed part (5) is hollow out construction, hollow out construction is used for supporting stator core (4).
2. The block back-wound stator insulation bobbin according to claim 1, wherein the thickness of the coil retaining portion (6) is greater than the thickness of the recess (5), and the coil retaining portion (6) is provided with an inlet and outlet slot (7).
3. The partitioned back-wound stator insulating skeleton according to claim 1, characterized in that the stator core (4) comprises stator internal teeth (41), tooth roots (42) radially extending from the stator internal teeth (41) and stator external teeth (43) located at the top ends of the tooth roots (42), a stator yoke (44) is arranged on one side of the tooth roots (42), a protruding portion (45) is arranged at the free end of the stator yoke (44), a groove (46) is arranged at the corresponding position on the other side of the tooth roots (42), and adjacent stator core units are inserted into the groove (46) through the protruding portion (45) to form an annular structure.
4. The segmented back-wound stator insulation backbone of claim 3, wherein the openwork is shaped and sized to match the stator yoke (44), the stator yoke (44) being nested within the openwork.
5. The block back-wound stator insulation framework of claim 3, wherein the width of the left side part (1) and the right side part (2) is slightly smaller than the length of the tooth root part (42), and the left side part (1) and the right side part (2) are clamped with the tooth root part (42) through the concave part (5).
6. The segmented back-wound stator insulation framework of claim 3, wherein the included angle satisfies the following condition: when the stator yoke portion (44) is nested in the hollow structure, the protruding portion (45) extends to the outside of the outer end face of the left side portion (1) or the outer end face of the right side portion (2), and the protruding portion (45) and the groove (46) can be connected in an inserting mode.
7. A segmented back-wound stator insulation frame according to any of claims 1 to 6, wherein the insulation frame is integrally formed and the stator core (4) is integrally formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122176275.9U CN216056552U (en) | 2021-09-09 | 2021-09-09 | Block back-wound stator insulation framework |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122176275.9U CN216056552U (en) | 2021-09-09 | 2021-09-09 | Block back-wound stator insulation framework |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216056552U true CN216056552U (en) | 2022-03-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122176275.9U Active CN216056552U (en) | 2021-09-09 | 2021-09-09 | Block back-wound stator insulation framework |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216056552U (en) |
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2021
- 2021-09-09 CN CN202122176275.9U patent/CN216056552U/en active Active
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