CN110957833B - Rotor of motor and motor - Google Patents
Rotor of motor and motor Download PDFInfo
- Publication number
- CN110957833B CN110957833B CN201911099566.3A CN201911099566A CN110957833B CN 110957833 B CN110957833 B CN 110957833B CN 201911099566 A CN201911099566 A CN 201911099566A CN 110957833 B CN110957833 B CN 110957833B
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- Prior art keywords
- flow deflector
- rotor shaft
- shaped section
- section
- rotor
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/32—Rotating parts of the magnetic circuit with channels or ducts for flow of cooling medium
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/10—Casings or enclosures characterised by the shape, form or construction thereof with arrangements for protection from ingress, e.g. water or fingers
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
The invention discloses a rotor of a motor and the motor, comprising an outer rotor shell and a rotor shaft, wherein the outer rotor shell comprises a circular tubular section and a conical cylindrical section, the circular tubular section and the conical cylindrical section are arranged in an integrated manner, the middle part of the cylinder bottom of the conical cylindrical section is provided with a connecting hole matched with the rotor shaft, the tail end of the rotor shaft is inserted into the connecting hole, the rotor shaft is suspended in the outer rotor shell through the connecting hole, an air inlet is arranged on the inclined plane of the conical barrel-shaped section, a flow deflector is inserted into the air inlet and arranged in an obtuse angle shape, the head end of the flow deflector is positioned outside the conical section and forms an air scraping inlet with the air inlet, the air scraping inlet is arranged in an acute angle shape, the opening direction of the air scraping inlet is the same as the rotating direction of the outer rotor shell, the tail end of the flow deflector is positioned in the conical section, and the flow deflector is fixedly connected with the conical section; the rotor of the motor has a good heat dissipation effect.
Description
Technical Field
The invention relates to a rotor of a motor and the motor.
Background
The motor is an electromagnetic device which converts or transmits electric energy according to the law of electromagnetic induction, or converts one form of electric energy into another form of electric energy. The motor converts electric energy into mechanical energy, and the generator converts mechanical energy into electric energy. Its main function is to generate driving torque as power source of electric appliance or various machines.
The outer rotor of the current motor does not have the function of heat dissipation, so that the improvement of the outer rotor motor is needed.
Disclosure of Invention
The invention aims to provide a rotor of a motor with a good heat dissipation effect and the motor.
In order to solve the problems, the invention adopts the following technical scheme:
a rotor of a motor comprises an outer rotor shell and a rotor shaft, wherein the outer rotor shell comprises a circular tubular section and a conical tubular section, the circular tubular section and the conical tubular section are integrally arranged, a connecting hole matched with the rotor shaft is formed in the middle of the bottom of the conical tubular section, the tail end of the rotor shaft is inserted into the connecting hole, the rotor shaft is suspended in the outer rotor shell through the connecting hole, an air inlet is formed in the inclined plane of the conical tubular section, a flow deflector is inserted into the air inlet and is arranged in an obtuse angle shape, the head end of the flow deflector is arranged outside the conical tubular section and forms an air scraping inlet with the air inlet, the air scraping inlet is arranged in an acute angle shape, the opening direction of the air scraping inlet is the same as the rotating direction of the outer rotor shell, the tail end of the flow deflector is arranged in the conical tubular section, the flow deflector is fixedly connected with the conical tubular section, and more than one flow deflector is arranged, the air inlet and the flow deflectors are distributed in an annular array, and a dust screen used for shielding the air inlet is arranged on the outer pipe wall of the conical cylindrical section.
Preferably, the middle part is provided with the bulge at the bottom of the inner tube of awl tube-shape section, bulge and awl tube-shape section formula as an organic whole set up, the connecting hole is located the bulge, through being provided with the bulge, can be favorable to promoting the total length of connecting hole to promote the area of contact of connecting hole and rotor shaft, promote stability.
Preferably, the rotor shaft end is provided with the embedding part, the embedding part sets up with rotor shaft formula as an organic whole, be provided with the embedded groove that the embedding part is mated on the awl tube-shape section, in the embedding part inserts the embedded groove, through being provided with the embedding part, can be so that rotor shaft's connection stability obtains promoting.
Preferably, the rotor shaft is provided with a spline, the hole wall of the connecting hole is provided with a spline groove matched with the spline, and the spline groove are arranged, so that the contact area of connection can be effectively increased, and the connection stability is improved.
Preferably, the connecting strips are arranged on the flow guide sheet, the connecting strips and the flow guide sheet are arranged in an integrated mode, a flow guide groove is formed between the flow guide sheet and the connecting strips, the flow guide groove is located outside the conical cylindrical section, and air can be better scraped into the outer rotor shell through the connecting strips and the flow guide groove.
Preferably, the spiral wing is arranged at the tail end of the guide vane and used for conveying air towards the head end direction of the rotor shaft, the spiral wing is fixedly connected with the guide vane, a gap is formed between the spiral wing and the rotor shaft, the spiral wing can convey the air scraped into the outer rotor shell towards the head end direction of the rotor shaft, and the heat dissipation effect can be effectively improved.
Preferably, the back of the flow deflector is provided with a connecting plate, the connecting plate and the flow deflector are arranged in an integrated manner, the connecting plate is tightly attached to the inner wall of the conical section, the conical section and the connecting plate are both provided with screw holes, bolts are screwed into the screw holes, the connecting plate and the conical section are fixedly connected through the screw holes and the bolts, and the flow deflector is good in stability and convenient to disassemble and assemble.
The invention also provides a motor which comprises the rotor of the motor.
The invention has the beneficial effects that: through being provided with the air inlet on the inclined plane at awl tube-shape section, and the water conservancy diversion piece has been inserted on the air inlet, because the water conservancy diversion piece head end is located outside the awl tube-shape section and scrapes the entry with air inlet formation air, external rotor housing can constantly scrape external cold air into inside in the pivoted, thereby can play good radiating effect, and be provided with the dust screen, can effectually prevent inside dust and the easy motor that enters into of foreign matter, furthermore, the middle part is provided with the bulge at the bottom of the inner tube of awl tube-shape section, bulge and awl tube-shape section formula as an organic whole set up, the connecting hole is located the bulge, through being provided with the bulge, can be favorable to promoting the total length of connecting hole, thereby promote the area of contact of connecting hole and rotor shaft, promote stability. The rotor shaft end is provided with the embedding part, and embedding part and rotor shaft formula as an organic whole set up, are provided with the embedding groove that the embedding part is mated on the awl tube-shape section, and in the embedding groove was inserted to the embedding part, through being provided with the embedding part, can be so that the connection stability of rotor shaft obtains promoting. Be provided with the spline on the rotor shaft, it has the spline groove of mating with the spline to open on the pore wall of connecting hole, through being provided with spline and spline groove, area of contact that can effectual promotion is connected to promote the stability of connecting. The connecting strips are arranged on the flow guide plates, the connecting strips and the flow guide plates are arranged in an integrated mode, flow guide grooves are formed between the flow guide plates and the connecting strips, the flow guide grooves are located outside the conical tubular sections, and the flow guide grooves are formed by the connecting strips, so that air can be better scraped into the outer rotor shell. The end of the flow deflector is provided with a spiral wing for conveying air towards the head end direction of the rotor shaft, the spiral wing is fixedly connected with the flow deflector, a gap is formed between the spiral wing and the rotor shaft, and the air scraped into the outer rotor shell can be quickly conveyed towards the head end direction of the rotor shaft through the spiral wing, so that the heat dissipation effect can be effectively improved. The flow deflector back is provided with the connecting plate, and the connecting plate sets up with flow deflector formula as an organic whole, and the connecting plate is hugged closely with the interior pipe wall of awl cylindric section, all is provided with the screw on awl cylindric section and the connecting plate, and it has the bolt to twist in the screw, and screw and bolt fixed connection are passed through to connecting plate and awl cylindric section, and flow deflector stability is good, and the dismouting is convenient.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a cross-sectional view of a rotor of an electric machine of the present invention.
Fig. 2 is a side view of a rotor of an electric machine of the present invention.
Fig. 3 is a side view of the rotor shaft of the rotor of an electric machine according to the invention.
Fig. 4 is a perspective view of a guide vane of a rotor of an electric machine according to the present invention.
In the figure:
1. an outer rotor housing; 2. a rotor shaft; 3. a circular tubular section; 4. a conical section; 5. an air inlet; 6. a flow deflector; 7. a projection; 8. an insertion section; 9. a spline; 10. a connecting strip; 11. a helical wing; 12. a connecting plate.
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.
In the embodiments, it should be understood that the terms "middle", "upper", "lower", "top", "right", "left", "above", "back", "middle", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention, and do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the present embodiment, if the connection or fixing manner between the components is not specifically described, the connection or fixing manner may be a conventional manner such as bolt fixing, pin shaft connecting, adhesive fixing, or rivet fixing, which is commonly used in the prior art, and therefore, the detailed description thereof will not be provided in the examples.
Example 1
As shown in fig. 1-4, a rotor of an electric motor includes an outer rotor housing 1 and a rotor shaft 2, the outer rotor housing 1 includes a circular tubular section 3 and a conical tubular section 4, the circular tubular section 3 and the conical tubular section 4 are integrally disposed, a connection hole (not shown) is disposed in the middle of the bottom of the conical tubular section 4, the rotor shaft 2 is inserted into the connection hole, the rotor shaft 2 is suspended in the outer rotor housing 1 through the connection hole, an air inlet 5 is disposed on the inclined surface of the conical tubular section 4, a baffle 6 is inserted into the air inlet 5, the baffle 6 is disposed in an obtuse angle, the head end of the baffle 6 is located outside the conical tubular section 4 and forms an air scraping inlet with the air inlet, the air scraping inlet is disposed in an acute angle, the opening direction of the air scraping inlet is the same as the rotation direction of the outer rotor housing 1, the end of the flow deflector 6 is located in the cone-shaped section 4, the flow deflector 6 is fixedly connected with the cone-shaped section 4, the air inlet 5 and the flow deflector 6 are both provided with more than one, the air inlet 5 and the flow deflector 6 are both distributed in an annular array, and a dust screen (not shown) used for shielding the air inlet 5 is arranged on the outer pipe wall of the cone-shaped section 4.
The invention has the beneficial effects that: through being provided with the air inlet on the inclined plane at awl tube-shape section to insert the water conservancy diversion piece on the air inlet, because the water conservancy diversion piece head end is located outside the awl tube-shape section and forms the air with the air inlet and scrape the entry, external rotor shell can be constantly scraped inside with external cold air in the pivoted, thereby can play good radiating effect, and be provided with the dust screen, can effectually prevent that dust and foreign matter from entering into inside the motor easily.
Example 2
As shown in fig. 1-4, a rotor of an electric motor includes an outer rotor housing 1 and a rotor shaft 2, the outer rotor housing 1 includes a circular tubular section 3 and a conical tubular section 4, the circular tubular section 3 and the conical tubular section 4 are integrally disposed, a connection hole (not shown) is disposed in the middle of the bottom of the conical tubular section 4, the rotor shaft 2 is inserted into the connection hole, the rotor shaft 2 is suspended in the outer rotor housing 1 through the connection hole, an air inlet 5 is disposed on the inclined surface of the conical tubular section 4, a baffle 6 is inserted into the air inlet 5, the baffle 6 is disposed in an obtuse angle, the head end of the baffle 6 is located outside the conical tubular section 4 and forms an air scraping inlet with the air inlet, the air scraping inlet is disposed in an acute angle, the opening direction of the air scraping inlet is the same as the rotation direction of the outer rotor housing 1, the end of the flow deflector 6 is located in the cone-shaped section 4, the flow deflector 6 is fixedly connected with the cone-shaped section 4, the air inlet 5 and the flow deflector 6 are both provided with more than one, the air inlet 5 and the flow deflector 6 are both distributed in an annular array, and a dust screen (not shown) used for shielding the air inlet 5 is arranged on the outer pipe wall of the cone-shaped section 4.
In this embodiment, middle part is provided with bulge 7 at the bottom of the inner tube of awl tube-shape section 4, bulge 7 sets up with 4 formula as an organic whole of awl tube-shape section, the connecting hole is located bulge 7, through being provided with bulge 7, can be favorable to promoting the total length of connecting hole to promote the area of contact of connecting hole and rotor shaft, promote stability.
In this embodiment, the end of the rotor shaft 2 is provided with an embedded portion 8, the embedded portion 8 and the rotor shaft 2 are integrally arranged, an embedded groove (not shown) in which the embedded portion 8 is matched is arranged on the conical section 4, the embedded portion 8 is inserted into the embedded groove, and the connection stability of the rotor shaft 2 can be improved by arranging the embedded portion 8.
In this embodiment, the rotor shaft 2 is provided with a spline 9, a spline groove (not shown) matched with the spline 9 is formed in the hole wall of the connecting hole, and the spline 9 and the spline groove are provided, so that the contact area of the connection can be effectively increased, and the connection stability is improved.
In this embodiment, the guide vane 6 is provided with the connecting strip 10, the connecting strip 10 and the guide vane 6 are integrally arranged, a guide groove (not shown) is formed between the guide vane 6 and the connecting strip 10, the guide groove is located outside the conical tubular section 4, and the connecting strip 10 is provided and formed with the guide groove, so that air can be better scraped into the outer rotor housing 1.
In this embodiment, the end of the flow deflector 6 is provided with the spiral wing 11 for conveying air towards the head end direction of the rotor shaft, the spiral wing 11 is fixedly connected with the flow deflector 6, a gap is formed between the spiral wing 11 and the rotor shaft 2, and the air scraped into the outer rotor shell 1 can be quickly conveyed towards the head end direction of the rotor shaft by the spiral wing 11, so that the heat dissipation effect can be effectively improved.
In this embodiment, a connecting plate 12 is disposed on the back surface of the flow deflector 6, the connecting plate 12 and the flow deflector 6 are integrally disposed, the connecting plate 12 is tightly attached to the inner wall of the conical cylindrical section 4, screw holes (not shown) are disposed on the conical cylindrical section 4 and the connecting plate 12, bolts (not shown) are screwed into the screw holes, the connecting plate 12 and the conical cylindrical section 4 are fixedly connected through the screw holes and the bolts, and the flow deflector has good stability and is convenient to disassemble and assemble.
The invention has the beneficial effects that: through being provided with the air inlet on the inclined plane at awl tube-shape section, and the water conservancy diversion piece has been inserted on the air inlet, because the water conservancy diversion piece head end is located outside the awl tube-shape section and scrapes the entry with air inlet formation air, external rotor housing can constantly scrape external cold air into inside in the pivoted, thereby can play good radiating effect, and be provided with the dust screen, can effectually prevent inside dust and the easy motor that enters into of foreign matter, furthermore, the middle part is provided with the bulge at the bottom of the inner tube of awl tube-shape section, bulge and awl tube-shape section formula as an organic whole set up, the connecting hole is located the bulge, through being provided with the bulge, can be favorable to promoting the total length of connecting hole, thereby promote the area of contact of connecting hole and rotor shaft, promote stability. The rotor shaft end is provided with the embedding part, and embedding part and rotor shaft formula as an organic whole set up, are provided with the embedding groove that the embedding part is mated on the awl tube-shape section, and in the embedding groove was inserted to the embedding part, through being provided with the embedding part, can be so that the connection stability of rotor shaft obtains promoting. Be provided with the spline on the rotor shaft, it has the spline groove of mating with the spline to open on the pore wall of connecting hole, through being provided with spline and spline groove, area of contact that can effectual promotion is connected to promote the stability of connecting. The connecting strips are arranged on the flow guide plates, the connecting strips and the flow guide plates are arranged in an integrated mode, flow guide grooves are formed between the flow guide plates and the connecting strips, the flow guide grooves are located outside the conical tubular sections, and the flow guide grooves are formed by the connecting strips, so that air can be better scraped into the outer rotor shell. The end of the flow deflector is provided with a spiral wing for conveying air towards the head end direction of the rotor shaft, the spiral wing is fixedly connected with the flow deflector, a gap is formed between the spiral wing and the rotor shaft, and the air scraped into the outer rotor shell can be quickly conveyed towards the head end direction of the rotor shaft through the spiral wing, so that the heat dissipation effect can be effectively improved. The flow deflector back is provided with the connecting plate, and the connecting plate sets up with flow deflector formula as an organic whole, and the connecting plate is hugged closely with the interior pipe wall of awl cylindric section, all is provided with the screw on awl cylindric section and the connecting plate, and it has the bolt to twist in the screw, and screw and bolt fixed connection are passed through to connecting plate and awl cylindric section, and flow deflector stability is good, and the dismouting is convenient.
The invention also provides a motor which comprises the rotor of the motor.
The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that are not thought of through the inventive work should be included in the scope of the present invention.
Claims (3)
1. A rotor for an electric machine, characterized by: the outer rotor shell comprises a circular tube-shaped section and a conical tube-shaped section, the circular tube-shaped section and the conical tube-shaped section are integrally arranged, a connecting hole matched with the rotor shaft is formed in the middle of the bottom of the conical tube-shaped section, the tail end of the rotor shaft is inserted into the connecting hole, the rotor shaft is suspended in the outer rotor shell through the connecting hole, an air inlet is formed in the inclined plane of the conical tube-shaped section, a flow deflector is inserted into the air inlet and is arranged in an obtuse angle shape, the head end of the flow deflector is positioned outside the conical tube-shaped section and forms an air scraping inlet with the air inlet, the air scraping inlet is arranged in an acute angle shape, the opening direction of the air scraping inlet is the same as the rotating direction of the outer rotor shell, the tail end of the flow deflector is positioned in the conical tube-shaped section, the flow deflector is fixedly connected with the conical tube-shaped section, and more than, the air inlet and the flow deflectors are distributed in an annular array, a dust screen used for covering the air inlet is arranged on the outer pipe wall of the cone-shaped section, a protruding part is arranged in the middle of the bottom of the inner cylinder of the cone-shaped section and integrally arranged with the cone-shaped section, the connecting hole is positioned on the protruding part, an embedding part is arranged at the tail end of the rotor shaft and integrally arranged with the rotor shaft, an embedded groove matched with the embedding part is arranged on the cone-shaped section and inserted into the embedded groove, a spline is arranged on the rotor shaft, a spline groove matched with the spline is arranged on the hole wall of the connecting hole, a connecting strip is arranged on the flow deflector and integrally arranged with the flow deflectors, a flow guide groove is formed between the flow deflector and the connecting strip, the flow guide groove is positioned outside the cone-shaped section, and a spiral wing used for conveying air to the head end direction of the rotor shaft is arranged at the tail end of the flow deflector, the spiral wing is fixedly connected with the flow deflector, and a gap is formed between the spiral wing and the rotor shaft.
2. A rotor of an electric machine according to claim 1, characterized in that: the back of the flow deflector is provided with a connecting plate, the connecting plate and the flow deflector are arranged in an integrated mode, the connecting plate is tightly attached to the inner pipe wall of the conical section, screw holes are formed in the conical section and the connecting plate, bolts are screwed into the screw holes, and the connecting plate is fixedly connected with the conical section through the screw holes and the bolts.
3. An electrical machine comprising a rotor of an electrical machine according to any of claims 1-2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911099566.3A CN110957833B (en) | 2019-11-12 | 2019-11-12 | Rotor of motor and motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911099566.3A CN110957833B (en) | 2019-11-12 | 2019-11-12 | Rotor of motor and motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110957833A CN110957833A (en) | 2020-04-03 |
| CN110957833B true CN110957833B (en) | 2020-12-29 |
Family
ID=69977229
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911099566.3A Active CN110957833B (en) | 2019-11-12 | 2019-11-12 | Rotor of motor and motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110957833B (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202424383U (en) * | 2011-11-18 | 2012-09-05 | 常州新亚电机有限公司 | Rotor shell of external rotor motor |
| CN203312971U (en) * | 2013-05-13 | 2013-11-27 | 深圳市实能高科动力有限公司 | Permanent magnet external-rotor generator and rotor housing thereof |
| KR102599971B1 (en) * | 2016-07-12 | 2023-11-09 | 엘지이노텍 주식회사 | Motor for drone and drone having the same |
| CN206149094U (en) * | 2016-11-02 | 2017-05-03 | 山东萌萌哒航空科技有限公司 | From heat dissipation motor |
| CN206807199U (en) * | 2017-06-14 | 2017-12-26 | 常州新亚电机有限公司 | A kind of outer rotor case, outer rotor component and external rotor electric machine |
| CN207853677U (en) * | 2018-03-09 | 2018-09-11 | 上海惠深工具科技有限公司 | From cooling external rotor electric machine |
-
2019
- 2019-11-12 CN CN201911099566.3A patent/CN110957833B/en active Active
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| Publication number | Publication date |
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| CN110957833A (en) | 2020-04-03 |
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Effective date of registration: 20201110 Address after: 325102 Dong'ou Industrial Park, Yongjia County, Wenzhou City, Zhejiang Province Applicant after: Zhongquan Group Co.,Ltd. Address before: 152000 Unity Street 177, Beilin District, Suihua City, Heilongjiang Province Applicant before: Cheng Guixiang |
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