CN204794410U - Motor rotor structure with ventilation cooling efficiency - Google Patents
Motor rotor structure with ventilation cooling efficiency Download PDFInfo
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- CN204794410U CN204794410U CN201520495338.9U CN201520495338U CN204794410U CN 204794410 U CN204794410 U CN 204794410U CN 201520495338 U CN201520495338 U CN 201520495338U CN 204794410 U CN204794410 U CN 204794410U
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Abstract
The utility model discloses a motor rotor structure with ventilation cooling efficiency, include: pivot and the rotor of constituteing by the stack of a plurality of rotor punchings, have the polylith former along radially evenly welding in the pivot, it has and welds the pivot complex shaft hole that has the former to open on the rotor punching. The utility model discloses an increase shaft hole size under the equitable circumstances of magnetic circuit is being guaranteed to the design rotor punching, yet strengthens pivot external diameter and shaft hole cooperation design the former welding in the pivot after, and former evenly distributed is on the main shaft, and the axial ventilation hole is done to its former interval, and the use of little motor core can be done to the waste material that big shaft hole swept away, kills two birds with one stone like this, and in addition die simple manufacture is firm, increase of service life. The event the utility model discloses rotor structure design is simple reasonable, and die simple manufacture is reliable, and it is good to ventilation cooling that the material that can practice thrift the rotor punching silicon steel sheet enables the rotor shaft again, guarantees each item performance index up to standard requirement of low pressure high power motor.
Description
Technical field
The utility model belongs to technical field of motors, is specifically related to a kind of motor rotor structure with ventilation and heat effect.
Background technology
Motor is a kind of conventional rotary electric machine electric energy conversion being become mechanical energy.Lathe, water pump, need motor to drive; Electric locomotive, elevator, need motor to draw; Electric fan in family life, refrigerator, washing machine, even various motor toy all be unable to do without motor; Therefore motor has been applied in the various aspects in modern society's life.
Motor, in use due to the existence of various loss, makes temperature constantly raise, and in order to normal use, cooling is even more important; As do not cooled it well, the useful life of motor can be affected.If the heat-sinking capability of motor is poor, then motor temperature can be caused too high, the useful life of motor can be affected, cause the problems such as deadlock, the life security of operator time serious, can be threatened.
Motor center more than height 400mm, voltage is all called low-pressure high-power motor at the motor of below 1000V, electric current because of low-pressure high-power motor is doted on greatly, the loss of motor is also large, for strengthening motor interior heat radiation, general rotor is all designed to the structure with axial ventilation hole, as shown in Figure 1.And the shortcoming of this structure: in identical performance index situation, the waste of rotor punching silicon steel material is large, and Mold Making cost is high, and in punching process, mould easily damages.
Publication number is that the Chinese patent application of CN1744410 discloses a kind of rotor mechanism with heat sinking function, it at least comprises: a case, there is a closed side and an open sides, this closed side is formed with the sidewall be attached thereto, and this closed side is formed with the protuberance of several connecting sealed side at least on one side, the another side of this protuberance is not connected with closed side, and this position corresponding, such closed side then forms cut; One wheel hub, have a blind end and an open end, this blind end is formed with the shouldered wall be attached thereto, and the outer surface of case is located at by this wheel hub, and the blind end of this wheel hub is provided with the open-work run through; Pass in and out by the cut of this case and the open-work of wheel hub to make fluid.
Publication number is that the Chinese patent application of CN102135111A discloses a kind of radiator fan and rotor thereof, they some flabellums comprising a wheel hub and be located at wheel hub periphery, each flabellum comprises a windward side and a lee face relative with windward side, it is characterized in that: this rotor also comprises and is located on the peripheral and annular wall be connected with flabellum outer end of flabellum, this annular wall forms a perforation between two adjacent flabellums, and this perforation is arranged near the lee face along the flabellum direction of rotation of rotor being positioned at front.
The above-mentioned patented technology about motor radiating cooling, mainly being that rotating shaft installs fan blade in addition, increases part like this, and volume becomes large, and installation procedure increases, and effect is general.
Summary of the invention
For the above-mentioned technical problem existing for prior art, the utility model provides a kind of motor rotor structure with ventilation and heat effect, reasonable in design, and rotor axial can either be made to ventilate, and can save material again, Mold Making is simple and reliable.
There is the motor rotor structure of ventilation and heat effect, comprising: rotating shaft and superposed the rotor formed by some rotor punchings; In described rotating shaft, radially uniform welding has polylith former, described rotor punching has the axis hole coordinated with the rotating shaft being welded with former.
The utility model increases axis hole size by design rotor punching in the rational situation of guarantee magnetic circuit, but strengthen spindle outer diameter and shaft hole matching design former welding in rotating shaft after, former is evenly distributed on main shaft, its former spacing makes axial ventilation hole, and the waste material that large axis hole sweeps away can do small machine punching use, kill two birds with one stone like this, add punch die and make firmly simple, increase the service life.
Further, described rotor tip is connected with the fan blade of heat transmission.
Further, described rotor top and bottom are equipped with end ring, and end ring is all connected with fan blade.
Preferably, described fan blade is evenly distributed on end ring.
Preferably, described fan blade adopts cast aluminium to make.
Further, described rotor is provided with louvre in the axial direction.
Preferably, described louvre is big uncork shape.
Preferably, described louvre is uniformly distributed in rotor shaft hatch.
The utility model low-pressure high-power motor rotor axial ventilation and heat structural design advantages of simple, punch die makes simple and reliable, the material can saving rotor punching silicon steel sheet can make again rotor axial ventilation and heat good, ensures that the property indices of low-pressure high-power motor reaches standard-required.
Accompanying drawing explanation
The rotor structure schematic diagram that Fig. 1 (a) is existing low-pressure high-power motor.
The rotor punching structure schematic diagram that Fig. 1 (b) is existing low-pressure high-power motor.
The pivot structure schematic diagram that Fig. 1 (c) is existing low-pressure high-power motor.
The rotor structure schematic diagram that Fig. 2 (a) is the utility model low-pressure high-power motor.
The rotor punching structure schematic diagram that Fig. 2 (b) is the utility model low-pressure high-power motor.
The pivot structure schematic diagram that Fig. 2 (c) is the utility model low-pressure high-power motor.
Fig. 3 (a) is air flow schematic diagram when the utility model low-pressure high-power motor rotor structure rotates clockwise.
The vertical view that Fig. 3 (b) is Fig. 3 (a).
Embodiment
In order to more specifically describe the utility model, below in conjunction with the drawings and the specific embodiments, the technical solution of the utility model is described in detail.
As shown in Figure 2, the utility model has the motor rotor structure of ventilation and heat effect, comprise: rotating shaft and superposed the rotor formed by some rotor punchings, in rotating shaft, radially uniform welding has polylith former, rotor punching has the axis hole coordinated with the rotating shaft being welded with former.
Present embodiment increases axis hole size by design rotor punching in the rational situation of guarantee magnetic circuit, but strengthen spindle outer diameter and shaft hole matching design former welding in rotating shaft after, former is evenly distributed on main shaft, its former spacing makes axial ventilation hole, and the waste material that large axis hole sweeps away can do small machine punching use, kill two birds with one stone like this, add punch die and make firmly simple, increase the service life.
As shown in Figure 3, the rotor structure of present embodiment comprises rotating shaft 1 and cast-aluminum rotor 2, cast-aluminum rotor 2 is arranged in rotating shaft 1, the top and bottom of cast-aluminum rotor 2 are equipped with end ring 4, end ring 4 is all connected with cast aluminium fan blade 3, and cast aluminium fan blade 3 is evenly distributed on end ring 4, and rotating shaft 1 is provided with louvre 5 in the axial direction, louvre 5 is in big uncork shape, and louvre 5 is uniformly distributed in rotor shaft hatch.When the rotor of motor rotates, have significant ventilatory, good heat dissipation effect, greatly reduce electric machine temperature rise, the temperature making machine operation keep good, increases the service life.R shown in Fig. 3 is the direction of rotation of cast-aluminum rotor, and shown F is air-flow direction.
Above-mentioned is can understand for ease of those skilled in the art and apply the utility model to the description of embodiment.Person skilled in the art obviously easily can make various amendment to above-described embodiment, and General Principle described herein is applied in other embodiments and need not through performing creative labour.Therefore, the utility model is not limited to above-described embodiment, and those skilled in the art are according to announcement of the present utility model, and the improvement made for the utility model and amendment all should within protection ranges of the present utility model.
Claims (8)
1. there is the motor rotor structure of ventilation and heat effect, comprising: rotating shaft and superposed the rotor formed by some rotor punchings; It is characterized in that: in described rotating shaft, radially uniform welding has polylith former, described rotor punching has the axis hole coordinated with the rotating shaft being welded with former.
2. motor rotor structure according to claim 1, is characterized in that: described rotor tip is connected with the fan blade of heat transmission.
3. motor rotor structure according to claim 2, is characterized in that: described rotor top and bottom are equipped with end ring, and end ring is all connected with fan blade.
4. motor rotor structure according to claim 3, is characterized in that: described fan blade is evenly distributed on end ring.
5. motor rotor structure according to claim 3, is characterized in that: described fan blade adopts cast aluminium to make.
6. motor rotor structure according to claim 1, is characterized in that: described rotor is provided with louvre in the axial direction.
7. motor rotor structure according to claim 6, is characterized in that: described louvre is big uncork shape.
8. motor rotor structure according to claim 6, is characterized in that: described louvre is uniformly distributed in rotor shaft hatch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520495338.9U CN204794410U (en) | 2015-07-08 | 2015-07-08 | Motor rotor structure with ventilation cooling efficiency |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520495338.9U CN204794410U (en) | 2015-07-08 | 2015-07-08 | Motor rotor structure with ventilation cooling efficiency |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204794410U true CN204794410U (en) | 2015-11-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520495338.9U Active CN204794410U (en) | 2015-07-08 | 2015-07-08 | Motor rotor structure with ventilation cooling efficiency |
Country Status (1)
| Country | Link |
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| CN (1) | CN204794410U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105356649A (en) * | 2015-12-15 | 2016-02-24 | 卧龙电气南阳防爆集团股份有限公司 | High-heat-dissipation explosion-proof three-phase asynchronous motor |
| CN106787332A (en) * | 2017-02-23 | 2017-05-31 | 上海电机系统节能工程技术研究中心有限公司 | Motor rotor construction |
-
2015
- 2015-07-08 CN CN201520495338.9U patent/CN204794410U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105356649A (en) * | 2015-12-15 | 2016-02-24 | 卧龙电气南阳防爆集团股份有限公司 | High-heat-dissipation explosion-proof three-phase asynchronous motor |
| CN106787332A (en) * | 2017-02-23 | 2017-05-31 | 上海电机系统节能工程技术研究中心有限公司 | Motor rotor construction |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |