CN112600331A - Small-sized motor rotor preventing rotor winding from being thrown out - Google Patents
Small-sized motor rotor preventing rotor winding from being thrown out Download PDFInfo
- Publication number
- CN112600331A CN112600331A CN202011356143.8A CN202011356143A CN112600331A CN 112600331 A CN112600331 A CN 112600331A CN 202011356143 A CN202011356143 A CN 202011356143A CN 112600331 A CN112600331 A CN 112600331A
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- rotor
- winding
- groove
- ring
- small
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/46—Fastening of windings on the stator or rotor structure
- H02K3/52—Fastening salient pole windings or connections thereto
- H02K3/527—Fastening salient pole windings or connections thereto applicable to rotors only
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Insulation, Fastening Of Motor, Generator Windings (AREA)
Abstract
The invention discloses a small motor rotor capable of preventing rotor windings from being thrown out, which comprises a rotor assembly and a rotating shaft penetrating through the rotor assembly: the rotor subassembly comprises rotor core and winding, and in the winding recess of winding wraparound on rotor core, the open end inner wall of winding recess inlays and is equipped with the clamp plate that extends along its length direction, the both ends of rotor subassembly all are provided with the grip ring, and the tip contact of grip ring and clamp plate, the both ends of rotor subassembly and the outside that is located the grip ring all are provided with the tighrening ring. According to the small motor rotor, the compressing pieces embedded in the winding grooves are adopted, the compressing and clamping effects can be achieved on the outer sides of the windings, the clamping effects can be achieved on the two ends of the windings by combining the clamping ring and the fastening ring, the windings can be protected in an all-around mode when the windings are accidentally broken, the windings are prevented from being thrown out of the winding grooves, and therefore the use safety of the motor rotor is improved.
Description
Technical Field
The invention relates to the technical field of motor rotors, in particular to a small motor rotor capable of preventing rotor windings from being thrown out.
Background
The motor rotor is also a rotating part in the motor, the motor consists of a rotor and a stator, and is a conversion device for realizing electric energy and mechanical energy and electric energy, the motor rotor is divided into a motor rotor and a generator rotor, a winding needs to be wound on a rotor core in the motor rotor, in order to ensure that the motor rotor can work normally, the winding in the motor rotor needs to be protected, and the winding is prevented from being thrown out of the rotor after friction fracture.
The existing weftless tape binding winding has gaps between rotor windings due to uneven inclined surface of winding end, which causes contact between partial weftless tape and gaps, and after glue discharging of the weftless tape, the weftless tape shrinkage at the winding and the gaps is different, which is easy to generate cracks, and the generated cracks finally cause the breakage of the weftless tape, and at the moment, after the winding loses the weftless tape constraint, the winding is easy to be thrown out under high-speed rotation of the rotor, which leads to insufficient safety of the motor rotor.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides a small motor rotor which prevents a rotor winding from throwing out by performing omnibearing clamping protection on a motor rotor winding and stably winding the winding on the motor rotor.
In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides a prevent small-size electric motor rotor that rotor winding throws away, includes the rotor subassembly to and run through the pivot of rotor subassembly:
the rotor assembly consists of a rotor core and a winding, and the winding is wound in a winding groove on the rotor core;
a pressing sheet extending along the length direction of the winding groove is embedded in the inner wall of the opening end of the winding groove;
clamping rings are arranged at two ends of the rotor assembly and are in contact with the end parts of the pressing pieces;
and fastening rings are arranged at the two ends of the rotor assembly and positioned on the outer sides of the clamping rings.
As a further description of the above technical solution:
the opening end of the winding groove is provided with a convex tooth part, and the inner wall of the convex tooth part is provided with a limiting block;
the upper surface of the pressing sheet is provided with a limiting groove;
the winding groove and the pressing sheet are connected in a sliding mode through the embedded clamping connection of the limiting block and the limiting groove.
As a further description of the above technical solution:
the outer wall of one side of the clamping ring is provided with a pressing groove, and the positions of the pressing groove and the pressing sheet are overlapped.
As a further description of the above technical solution:
the outer wall of the other side of the clamping ring is provided with an assembling groove;
the outer wall of the fastening ring is provided with an assembling block;
through the embedded joint of assembly block and assembly groove, with tighrening ring and grip ring be assembled between/be connected.
As a further description of the above technical solution:
a positioning groove is formed in the rotor iron core;
the fastening ring is provided with a through hole;
the fastening ring is connected with the rotor core through a fastener penetrating through the through hole and extending into the positioning groove.
As a further description of the above technical solution:
a limiting groove is formed in the rotor iron core;
the fastening ring is provided with a through hole;
the fastening ring is connected with the rotor core through the fastener penetrating through the through hole and extending into the limiting groove.
As a further description of the above technical solution:
the opposite surfaces of the two convex tooth parts in the same winding groove are both arc-shaped structures, and the inner diameter of an opening on one side close to the rotating shaft is larger than that of an opening on one side far away from the rotating shaft.
The invention provides a small motor rotor capable of preventing rotor windings from being thrown out. The method has the following beneficial effects:
this small-size electric motor rotor adopts to inlay the compact heap of establishing in the winding recess, can play the effect that compresses tightly the centre gripping to the outside of winding to combine the combination centre gripping mode of grip ring and tighrening ring, can play further clamping effect to the both ends of winding, can play omnidirectional guard action to the winding when the winding accident splits, avoid the winding to throw away from in the winding recess, thereby improved electric motor rotor's safety in utilization.
Drawings
Fig. 1 is a schematic view of an overall structure of a rotor of a small-sized motor for preventing rotor windings from being thrown out according to the present invention;
FIG. 2 is a schematic cross-sectional view of a rotor assembly according to the present invention;
FIG. 3 is a schematic view of a partial structure of a rotor core according to the present invention;
FIG. 4 is a schematic structural view of a pressing sheet according to the present invention;
FIG. 5 is a schematic view of a fastening ring according to the present invention;
FIG. 6 is a side view of the clamp ring of the present invention;
FIG. 7 is another schematic view of the clamp ring of the present invention.
Illustration of the drawings:
1. a rotor assembly; 11. a rotor core; 111. winding grooves; 1111. a convex tooth part; 1112. a limiting block; 112. positioning a groove; 12. a winding; 13. a compression sheet; 131. a limiting groove; 132. an insulating sheet; 2. a fastening ring; 21. assembling the block; 22. a through hole; 3. a rotating shaft; 4. a clamp ring; 41. assembling a groove; 42. and pressing the groove.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
As shown in fig. 1 and fig. 2, a small-sized motor rotor for preventing rotor windings from being thrown out includes a rotor assembly 1, and a rotating shaft 3 penetrating through the rotor assembly 1:
the rotor assembly 1 consists of a rotor core 11 and a winding 12, the winding 12 is wound in a winding groove 111 on the rotor core 11, and the rotor core 11 is formed by superposing and extruding a plurality of silicon steel sheets;
a pressing sheet 13 extending along the length direction of the winding groove 111 is embedded in the inner wall of the opening end of the winding groove 111, the pressing sheet 13 is of an arc-shaped plate-shaped structure, and the length of the pressing sheet is slightly longer than that of the rotor core 11, so that two ends of the pressing sheet 13 extend out of two ends of the winding groove 111;
the two ends of the rotor assembly 1 are provided with clamping rings 4, and the clamping rings 4 are in contact with the end parts of the pressing sheets 13;
both ends of rotor subassembly 1 and the outside that is located grip ring 4 all are provided with tighrening ring 2, can play the effect of fastening centre gripping to grip ring 4, and the centre gripping of increase grip ring 4 is stable.
In this embodiment, adopt to inlay the compressing tightly piece 13 of establishing in winding recess 111, can play the effect that compresses tightly the centre gripping to the outside of winding 12 to combine the combination centre gripping mode of grip ring 4 and tighrening ring 2, can play further clamping effect to the both ends of winding 12, can play omnidirectional guard action to winding 12 when winding 12 unexpected fracture, avoid winding 12 to throw away from in winding recess 111, thereby improved electric motor rotor's safety in utilization.
As shown in fig. 3 and 4, the opening end of the winding groove 111 is provided with a protruding tooth portion 1111, the inner wall of the protruding tooth portion 1111 is provided with a limiting block 1112, the upper surface of the pressing sheet 13 is provided with a limiting groove 131, and the winding groove 111 and the pressing sheet 13 are slidably connected by the embedded engagement of the limiting block 1112 and the limiting groove 131;
insert the compact heap 13 in winding recess 111 to promote compact heap 13 in to winding recess 111, make stopper 1112 and spacing groove 131 embedding joint, thereby play the effect of spacing centre gripping to the insertion process of compact heap 13, ensure that compact heap 13 is in dynamic balance's state and inserts winding recess 111 in, avoid compact heap 13 to take place the phenomenon of skew at the insertion in-process.
As shown in fig. 2 and 7, the outer wall of one side of the clamping ring 4 is provided with the pressing groove 42, and the positions of the pressing groove 42 and the pressing sheet 13 are overlapped with each other, when the clamping ring 4 is installed at the end of the rotor core 11, the outwardly extending positions at the two ends of the pressing sheet 13 are embedded into the pressing groove 42, so that the pressing sheet 13 is clamped in a limiting manner, the pressing sheet 13 and the pressing groove 42 are restrained mutually, the clamping ring 4 is further reinforced, and the position stability of the clamping ring 4 is improved.
As shown in fig. 5 and 6, the outer wall of the other side of the clamping ring 4 is provided with an assembling groove 41, the outer wall of the fastening ring 2 is provided with an assembling block 21, and the fastening ring 2 and the clamping ring 4 are assembled and connected by the embedded clamping connection of the assembling block 21 and the assembling groove 41;
when the fastening ring 2 is installed outside the clamping ring 4, the assembling block 21 is embedded into the assembling groove 41, and the mutual restriction action of the assembling block 21 and the assembling groove 41 is utilized to increase the connection stability between the fastening ring 2 and the clamping ring 4 and ensure that the fastening ring 2 and the clamping ring 4 are in a relative static state.
As shown in fig. 2 and 5, the positioning groove 112 is formed in the rotor core 11, the fastening ring 2 is provided with the through hole 22, the fastening ring 2 is connected with the rotor core 11 by penetrating through the through hole 22 and extending to the fastening piece in the positioning groove 112, the fastening piece can adopt a screw or a pin, the fastening piece penetrates through the through hole 22 and then enters the positioning groove 112, the fastening ring 2 is stably installed on the rotor core 11, and the situation that the fastening ring 2 shakes or falls off is avoided.
As shown in fig. 4, the lower surface of the compressing plate 13 is provided with an insulating sheet 132, and the insulating sheet 132 is in contact with the inner wall of the winding groove 111, so as to perform an insulating and isolating function on the compressing plate 13 and the winding 12, thereby improving the working stability of the rotor assembly 1.
As shown in fig. 3, the opposite surfaces of the two teeth 1111 in the same winding groove 111 are both arc-shaped structures, and the inner diameter of the opening on the side close to the rotating shaft 3 is larger than the inner diameter of the opening on the side far from the rotating shaft 3, so that the outer side of the pressing piece 13 can be clamped in an anti-falling manner, and the pressing piece 13 is ensured not to move outwards in the winding groove 111.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (7)
1. The utility model provides a prevent small-size electric motor rotor that rotor winding throws away, includes rotor subassembly (1) to and pivot (3) that run through rotor subassembly (1), its characterized in that:
the rotor assembly (1) consists of a rotor core (11) and a winding (12), and the winding (12) is wound in a winding groove (111) on the rotor core (11);
a pressing sheet (13) extending along the length direction of the winding groove (111) is embedded in the inner wall of the opening end of the winding groove;
clamping rings (4) are arranged at two ends of the rotor assembly (1), and the clamping rings (4) are in contact with the end parts of the pressing sheets (13);
and fastening rings (2) are arranged at the two ends of the rotor assembly (1) and positioned on the outer sides of the clamping rings (4).
2. The rotor for a small-sized motor according to claim 1, wherein the rotor comprises: the opening end of the winding groove (111) is provided with a convex tooth part (1111), and the inner wall of the convex tooth part (1111) is provided with a limiting block (1112);
the upper surface of the pressing sheet (13) is provided with a limiting groove (131);
the winding groove (1111) is connected with the pressing sheet (13) in a sliding mode through the embedded clamping connection of the limiting block (1112) and the limiting groove (131).
3. The rotor for a small-sized motor according to claim 1, wherein the rotor comprises: the outer wall of one side of the clamping ring (4) is provided with a pressing groove (42), and the positions of the pressing groove (42) and the pressing sheet (13) are overlapped.
4. The rotor for a small-sized motor according to claim 1, wherein the rotor comprises: an assembling groove (41) is formed in the outer wall of the other side of the clamping ring (4);
the outer wall of the fastening ring (2) is provided with an assembling block (21);
the fastening ring (2) is connected with the clamping ring (2) in an assembling way through the embedded clamping connection of the assembling block (21) and the assembling groove (41).
5. The rotor for a small-sized motor according to claim 1, wherein the rotor comprises: a positioning groove (112) is arranged on the rotor iron core (11);
the fastening ring (2) is provided with a through hole (22);
the fastening ring (2) is connected to the rotor core (11) by means of fasteners which extend through the through-holes (22) and into the positioning slots (112).
6. The rotor for a small-sized motor according to claim 1, wherein the rotor comprises: the lower surface of compressing tightly piece (13) is provided with insulating piece (132), and insulating piece (132) and the inner wall contact of winding recess (111).
7. The rotor for a small-sized motor according to claim 1, wherein the rotor comprises: the opposite surfaces of the two convex tooth parts (1111) in the same winding groove (111) are both arc-shaped structures, and the inner diameter of an opening on one side close to the rotating shaft (3) is larger than that of an opening on one side far away from the rotating shaft (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011356143.8A CN112600331A (en) | 2020-11-27 | 2020-11-27 | Small-sized motor rotor preventing rotor winding from being thrown out |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011356143.8A CN112600331A (en) | 2020-11-27 | 2020-11-27 | Small-sized motor rotor preventing rotor winding from being thrown out |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112600331A true CN112600331A (en) | 2021-04-02 |
Family
ID=75184391
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011356143.8A Pending CN112600331A (en) | 2020-11-27 | 2020-11-27 | Small-sized motor rotor preventing rotor winding from being thrown out |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112600331A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87107364A (en) * | 1986-12-12 | 1988-07-27 | 西屋电气公司 | The configuration of generator coil slot wedge |
| CN1674409A (en) * | 2004-03-23 | 2005-09-28 | 通用电气公司 | Module winding system and electric connecting method for electric machine |
| CN103532269A (en) * | 2013-10-11 | 2014-01-22 | 陕西航空电气有限责任公司 | Aviation high-speed generator rotor structure |
| CN103997139A (en) * | 2013-02-14 | 2014-08-20 | 东芝三菱电机产业系统株式会社 | Rotor of rotation motor |
| JP2015226379A (en) * | 2014-05-28 | 2015-12-14 | アイシン・エィ・ダブリュ株式会社 | Stator and assembling method therefor |
| CN206834868U (en) * | 2017-05-31 | 2018-01-02 | 中山大洋电机股份有限公司 | A kind of motor rotor component and its motor of application |
| CN107681795A (en) * | 2016-08-02 | 2018-02-09 | 东芝三菱电机产业系统株式会社 | Electric rotating machine |
| CN210744855U (en) * | 2019-11-01 | 2020-06-12 | 江西双威电机有限公司 | Mounting structure of motor rotor |
| CN111769673A (en) * | 2020-05-18 | 2020-10-13 | 华为技术有限公司 | Motor rotor, motor and car |
-
2020
- 2020-11-27 CN CN202011356143.8A patent/CN112600331A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87107364A (en) * | 1986-12-12 | 1988-07-27 | 西屋电气公司 | The configuration of generator coil slot wedge |
| CN1674409A (en) * | 2004-03-23 | 2005-09-28 | 通用电气公司 | Module winding system and electric connecting method for electric machine |
| CN103997139A (en) * | 2013-02-14 | 2014-08-20 | 东芝三菱电机产业系统株式会社 | Rotor of rotation motor |
| CN103532269A (en) * | 2013-10-11 | 2014-01-22 | 陕西航空电气有限责任公司 | Aviation high-speed generator rotor structure |
| JP2015226379A (en) * | 2014-05-28 | 2015-12-14 | アイシン・エィ・ダブリュ株式会社 | Stator and assembling method therefor |
| CN107681795A (en) * | 2016-08-02 | 2018-02-09 | 东芝三菱电机产业系统株式会社 | Electric rotating machine |
| CN206834868U (en) * | 2017-05-31 | 2018-01-02 | 中山大洋电机股份有限公司 | A kind of motor rotor component and its motor of application |
| CN210744855U (en) * | 2019-11-01 | 2020-06-12 | 江西双威电机有限公司 | Mounting structure of motor rotor |
| CN111769673A (en) * | 2020-05-18 | 2020-10-13 | 华为技术有限公司 | Motor rotor, motor and car |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210402 |
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| RJ01 | Rejection of invention patent application after publication |