CN202798343U - Closed cycle outer rotor fan motor ventilation system - Google Patents
Closed cycle outer rotor fan motor ventilation system Download PDFInfo
- Publication number
- CN202798343U CN202798343U CN 201220423029 CN201220423029U CN202798343U CN 202798343 U CN202798343 U CN 202798343U CN 201220423029 CN201220423029 CN 201220423029 CN 201220423029 U CN201220423029 U CN 201220423029U CN 202798343 U CN202798343 U CN 202798343U
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Abstract
The utility model discloses a closed cycle outer rotor fan motor ventilation system and belongs to the technical field of motor cooling. In the closed cycle outer rotor fan motor ventilation system, an engine base serves as a motor base support, and a spindle is movably connected to the center of the engine base through a bearing; a stator support frame is fixed on the engine base, and a stator core is sleeved on the stator support frame to form a stator; a rotor support and the spindle are matched and fixed through a taper hole, enclosed space is formed between the rotor support and the engine base, a fan blade is welded on the outer wall of the rotor support, a rotor core is sleeved on the inner wall of the rotor support and is opposite to the stator core, the rotor support, the rotor core and the fan blade form an outer rotor, and the outer rotor can rotate relative to the stator; and a support rib plate is arranged on the inner wall of the rotor support, and when a motor spindle rotates, the support rib plate rotates along with the rotor support around the motor spindle to drive air in the motor to form inner circulation. According to the closed cycle outer rotor fan motor ventilation system, the cooling effect is good, the thickness of the yoke portion of the stator is reduced, and the electromagnetic performance of the motor is improved.
Description
Technical field
The utility model relates to the motor cooling technology, especially a kind of cooling system of external rotor fan electromotor.
Background technology
At present, most motors all are the ventilation cooling systems take air as coolant, and the Motor Ventilation Cooling System mode is nearly following several: certainly fan cold, he fans cold, pipe ventilated cooling, free circulating cooling, closed circulation cooling etc.; Closed circulation cooling wherein is the fanning action by the fan that is installed in the motor two ends, promotes air and moves at motor internal, by structures such as cooling water pipe, support wall, radiating ribs heat is taken away.
The inner cycle channel of existing motor substantially all is the spatial composing by the ventilation hole on the stator and rotor iron core and stator and rotor iron core two ends.The defective of its existence is: 1. the general closed circulation type of cooling is by being installed in specially the fans drive air circulation of motor internal, and special fan structure takies than large space, and needs specialized designs, and is also comparatively complicated.2. motor internal air circulation passage generally all is to utilize the ventilation hole of offering at stator punching to form, and so just so that stator core yoke section magnetic circuit is comparatively nervous, usually adopts the method for thickening yoke section to alleviate yoke section magnetic circuit.Specifically ventilate with regard to the type of cooling with regard to existing motor, all not too be applicable to the external rotor fan electromotor, because this motor is height-limited, can not special cooling fan be installed at motor internal and drive air, in addition, this motor is vertical installation, and stator punching do not offer ventilation hole, can not form effective inner loop passage between stator-rotor iron core.
The utility model content
Goal of the invention of the present utility model is: for the problem of above-mentioned existence, provide a kind of simple in structure, with low cost, and good heat dissipation effect, the external rotor fan electromotor ventilating system of joint space-efficient closed circulation, Effective Raise the electromagnetic performance of motor, reduce stator yoke section thickness.
The technical solution adopted in the utility model is as follows:
The external rotor fan electromotor ventilating system of closed circulation of the present utility model, it comprises machine shaft, stator support frame, stator core, rotor core, fan blade, rotor field spider and support; Wherein support is placed in outside the machine shaft, and described machine shaft can rotate with respect to support; Be fixed with the stator support frame on the described support, be provided with stator core on the described stator support frame and form stator; Fixed cover is equipped with rotor field spider on the described machine shaft, described rotor field spider cooperates the formation confined space with support, outer wall at rotor field spider is fixed with fan blade, inwall at rotor field spider is fixed with rotor core, described rotor core is relative with stator core, described rotor field spider, rotor core and fan blade form external rotor, and this external rotor can rotate with respect to stator; Inwall at rotor field spider is provided with bearing rib, and motor is walked around when moving, and bearing rib rotates centered by machine shaft with rotor field spider, and the drive motors inner air forms interior circulation.
Because to have adopted said structure, the housing of traditional motor all be monolithic construction, and the housing of motor all is fixing indefinite, and therefore traditional motor all needs to arrange in addition fan assembly motor internal is cooled off.Therefore the utility model on the basis of existing technology, bearing rib is designed to the blade of similar fan, thereby the air circulation in the drive motors, and in the utility model, the conventional motors fractionation is become rotor field spider and support, and rotor field spider and support cooperatively interact, so that its inner seal cavity that forms, be convenient to hold stator and external rotor, rotor field spider fixedly is placed on the machine shaft simultaneously, can rotate with machine shaft, and support is placed on the machine shaft, and machine shaft can rotate with respect to support, therefore so that can relatively rotate between rotor field spider and the support, simultaneously mutually sealing between rotor field spider and the support, so that enclosure interior forms airtight structure, external rotor is relative with the position of stator, so that external rotor and stator can relatively rotate, external rotor is fixed in the rotor field spider inwall, can rotate with machine shaft, and stator is fixed on the support by the stator support frame, external rotor can be with respect to stator rotation, inwall at rotor field spider is provided with bearing rib simultaneously, this bearing rib arrives the effect of gusset on the one hand, stationary housing, it can rotate with machine shaft on the one hand in addition, formation is similar to the structure of fan, wherein bearing rib is fan blade, when machine shaft rotates, bearing rib rotates centered by machine shaft with rotor field spider, play the effect of fan, the drive motors inner air forms interior circulation, the heat that stator and external rotor is relatively rotated generation brings on the housing, cool off, utilize the bearing rib of rotor inside as the fans drive air, then be installed in motor internal without the specialized designs fan, save the space, reduce motor volume, and take full advantage of the external rotor fan and drive the cooling effect that extraneous air plays motor housing, the heat that promptly brings motor housing the motor internal air circulation is taken away good heat dissipation effect.
The external rotor fan electromotor ventilating system of closed circulation of the present utility model, described rotor field spider can rotate with respect to support, and sealing forms movable sealing structure between rotor field spider and the support simultaneously.
Owing to adopted said structure, by the stator support frame, can be so that stator be fixedly installed on the support, so rotor can produce relative rotation between stator and the rotor when rotating, adopt movable sealing to cooperate between support and the rotor field spider, also be the relatively turnable while between rotor field spider and the support, have good sealing effectiveness, mutually noninterfere between support and the rotor field spider, can relatively rotate and have good sealing, thereby guarantee that rotor field spider and support cooperate the formation confined space.
The external rotor fan electromotor ventilating system of closed circulation of the present utility model, described rotor core is formed by stacking by rotor punching, offers respectively ventilation hole on described stator support frame and the rotor punching; When machine shaft drives the external rotor rotation, bearing rib drive motors inner air, the space at the ventilation hole on the ventilation hole on the rotor punching, stator support frame, rotor field spider inner chamber and stator core and rotor core two ends forms inner cycle channel.
Owing to adopted said structure, rotor core is formed by stacking by rotor punching, and the rotor core hot jacket is in the inwall of rotor field spider, be welded and fixed bearing rib at the rotor field spider inwall, so that the rotor field spider structure is more surely leaned on, the structure of housing is more firm, and on stator support frame and rotor punching, all offer ventilation hole, so that the ventilation hole on the stator support frame, ventilation hole on the rotor punching, the space at rotor field spider inner chamber and stator-rotor iron core two ends can ventilate, therefore when machine shaft rotates, bearing rib and rotor field spider form the structure that is similar to fan, bearing rib is similar to blade, Air Flow that can drive motors inside, and this bearing rib can be arranged at by the ventilation hole of rotor punching, when therefore bearing rib rotates, by the rotor punching ventilation hole, air in the motor can enter from an end of rotor core, flow out from the other end, ventilation hole from stator support frame below enters in the stator support frame again, flow out from stator support frame top ventilation hole, ventilation hole from rotor field spider one end enters the rotor field spider inner chamber again, by the rotor field spider inner chamber, flow out from rotor field spider other end ventilation hole, so that air forms the path of circulation in motor, also be that bearing rib drive motors inner air forms inner cycle channel, the heat that stator and external rotor produced when motor was moved, through the direct rotor field spider upper wall of inner cycle channel heat is passed out, thereby or be delivered to again the rotor field spider outer wall by rotor core heat is passed out, thereby play the effect of cooling heat dissipation.Bearing rib is installed in motor internal as the fans drive air without the specialized designs fan, thereby reduces motor volume, saves the space.The external rotor fan electromotor ventilating system of closed circulation of the present utility model, offer ventilation hole at stator support structure and form wind path, stator is cooled off, replacement is offered ventilation hole at stator punching, reduced stator yoke section thickness, so that stator yoke section magnetic circuit is well-to-do, Effective Raise the electromagnetic performance of motor.
The external rotor fan electromotor ventilating system of closed circulation of the present utility model, described bearing rib is triangular structure, on the inwall of described bearing rib perpendicular to rotor field spider, the direction of bearing rib is vertical with rotor punching simultaneously; Described bearing rib is a plurality of, and is distributed on the rotor field spider inwall centered by the internal taper hole of rotor field spider.
Owing to adopted said structure, bearing rib is vertical with rotor punching, rotor field spider simultaneously, can play the effect of strengthening gusset on the one hand, so that being connected more surely between rotor punching and the inner walls leaned on; On the other hand, this bearing rib is a plurality of, and around centered by machine shaft, being distributed in the rotor field spider inwall, and centered by machine shaft, be positioned on the same circumference, when machine shaft rotates, bearing rib on the same circumference rotates simultaneously, so that whole rotor field spider and bearing rib when rotating, form the structure of fan, wherein bearing rib is as blade, air in the drive shell, thereby need not the specialized designs fan and be installed in motor internal, reduced widely the volume of motor, save the space.
The external rotor fan electromotor ventilating system of closed circulation of the present utility model, described fan blade is a plurality of, and described fan blade is distributed in centered by machine shaft on the outer wall of rotor field spider.
Owing to adopted said structure, fan blade on the rotor field spider outer wall, when machine shaft rotates on the one hand, fan blade is rotated with rotor field spider, this fan blade drive motor extraneous air moves from the bottom up, form the extraneous air path, thereby can ventilate to the various device of outside motor cooling, thereby reach extraordinary cooling effect; On the other hand, take full advantage of fan blade fan and drive the cooling effect that extraneous air plays motor housing (being the rotor field spider exocoel), the heat that promptly brings motor housing the motor internal air circulation is taken away, so that good heat dissipation effect.Fan blade is uniform centered by machine shaft, so that external ventilation is even, guarantees that cooling effect is better.
In sum, owing to adopted technique scheme, the beneficial effects of the utility model are:
1, the external rotor fan electromotor ventilating system of closed circulation of the present utility model is simple in structure, with low cost, and good heat dissipation effect, saves the space;
2, the external rotor fan electromotor ventilating system of closed circulation of the present utility model, offer ventilation hole in stator support, replace offering ventilation hole at stator punching, reduced stator yoke section thickness, so that stator yoke section magnetic circuit is well-to-do, Effective Raise the electromagnetic performance of motor;
3, the external rotor fan electromotor ventilating system of closed circulation of the present utility model, bearing rib are as blade, and the air in the drive shell is installed in motor internal thereby need not the specialized designs fan, has reduced widely the volume of motor, save the space.
Description of drawings
The utility model will illustrate by example and with reference to the mode of accompanying drawing, wherein:
Fig. 1 is the structural representation of the external rotor fan electromotor ventilating system of closed circulation of the present utility model.
Mark among the figure: 1-machine shaft, 2-stator core, 3-rotor core, 4-fan blade, 5-stator support frame, 6-bearing rib, 7-air circulation duct, 8-extraneous air path, 9-rotor field spider, 10-support.
Embodiment
Disclosed all features in this specification, or the step in disclosed all methods or the process except mutually exclusive feature and/or step, all can make up by any way.
Disclosed arbitrary feature in this specification (comprising any accessory claim, summary and accompanying drawing) is unless special narration all can be replaced by other equivalences or the alternative features with similar purpose.That is, unless special narration, each feature is an example in a series of equivalences or the similar characteristics.
Shown in Fig. 1, the external rotor fan electromotor ventilating system of closed circulation of the present utility model, comprise machine shaft 1, stator support frame 5, stator core 2, outer rotor iron core 3, rotor field spider 9 and support 10, wherein rotor field spider 9 fixedly is placed on the machine shaft 1, described support 10 is placed on the machine shaft 1, and machine shaft 1 can rotate with respect to machine shaft 1 support 10, and rotor field spider 9 and support 10 cooperate the formation confined space; Be provided with the relative external rotor in position and stator in this confined space, this external rotor can rotate with respect to stator, and wherein stator forms by being provided with stator core 2 on the stator support frame 5, and described stator support frame 5 is fixed on the support 10; Described external rotor is comprised of rotor field spider 9, rotor core 3 and fan blade 4, outer wall at rotor field spider 9 is fixed with fan blade 4, inwall at rotor field spider 9 is fixed with rotor core 3, described rotor core 3 is relative with stator core 2, and adopt movable sealing to cooperate between described support 10 and the rotor field spider 9, make between rotor field spider 9 and the support 10 and can relatively rotate; Described rotor core 3 is formed by stacking by rotor punching, described stator core 2 is formed by stacking by stator punching, inwall at rotor field spider 9 is provided with bearing rib 6, described bearing rib 6 is triangular structure, on the inwall of described bearing rib 6 perpendicular to rotor field spider 9, simultaneously the direction of bearing rib 6 is vertical with rotor punching, can play on the one hand the effect of reinforcement gusset, so that being connected more surely between rotor punching and the inner walls leaned on; On the other hand, this bearing rib 6 is a plurality of, and around centered by machine shaft 1, being distributed in rotor field spider 9 inwalls, and centered by machine shaft 1, be positioned on the same circumference, when machine shaft 1 rotated, the bearing rib 6 on the same circumference rotated simultaneously; Described bearing rib 6 is a plurality of, number can be set according to actual needs, and centered by the internal taper hole of rotor field spider 9, be distributed on rotor field spider 9 inwalls, when machine shaft 1 rotates, bearing rib 6 rotates centered by machine shaft 1 with rotor field spider 9, offers respectively ventilation hole on described stator support frame 5 and the rotor punching; Above the stator core 2 of rotor field spider 9 inside and rotor core 3, has the rotor field spider inner chamber, offer ventilation hole on the rotor field spider inner chamber, so that the space at the ventilation hole on the stator support frame 5, the ventilation hole on the rotor punching, rotor field spider inner chamber and stator-rotor iron core two ends can ventilate, and when machine shaft 1 drives the external rotor rotation, bearing rib 6 drive motors inner airs, the ventilation hole on the ventilation hole on the rotor punching, stator support frame 5, rotor field spider 9 inner chambers and stator core 2 form inner cycle channel with the space at rotor core 3 two ends.Simultaneously, at the outer wall of described upper shell 9 a plurality of fan blade 4 are installed, concrete quantity is advanced to set according to actual needs, and described fan blade 4 is uniform centered by machine shaft 1.When bearing rib rotates, by the rotor punching ventilation hole, air in the motor can enter from an end of rotor core, flow out from the other end, ventilation hole from stator support frame below enters in the stator support frame again, flow out from stator support frame top ventilation hole, ventilation hole from rotor field spider one end enters the rotor field spider inner chamber again, by the rotor field spider inner chamber, flow out from rotor field spider other end ventilation hole, so that air forms the path of circulation in motor, also be that bearing rib drive motors inner air forms inner cycle channel, the heat that stator and external rotor produced when motor was moved passes out heat through the direct rotor field spider upper wall of inner cycle channel, thereby or be delivered to again the rotor field spider outer wall by rotor core heat is passed out, thereby play the effect of cooling heat dissipation.
The external rotor 3 fan electromotor ventilating systems of closed circulation of the present utility model, offer ventilation hole in stator support 5 and form wind path, stator is cooled off, replacement is offered ventilation hole in stator 2 punchings, stator 2 yoke section thickness have been reduced, so that stator 2 yoke section magnetic circuits are well-to-do, Effective Raise the electromagnetic performance of motor.
Outer wall at rotor field spider 9 is equipped with a plurality of fan blade 4 simultaneously, and concrete number is set according to actual needs, and described fan blade 4 is uniform centered by machine shaft 1.Fan blade 4 on rotor field spider 9 outer walls, when machine shaft 1 rotates on the one hand, fan blade 4 is rotated with rotor field spider 9, these fan blade 4 drive motor extraneous airs move from the bottom up, form the extraneous air path, thereby can ventilate to the various device of outside motor cooling, thereby reach extraordinary cooling effect; On the other hand, take full advantage of fan blade 4 fan and drive the cooling effect that extraneous airs play motor housing, the heat that promptly brings motor housing the motor internal air circulation is taken away, so that good heat dissipation effect.Fan blade 4 is uniform centered by machine shaft 1, so that external ventilation is even, guarantees that cooling effect is better.
The external rotor fan electromotor ventilating system of closed circulation of the present utility model, the monolithic construction of the housing of traditional motor, and the housing of motor all is fixing indefinite, therefore traditional motor all needs to arrange in addition fan assembly motor internal is cooled off.Therefore the external rotor fan electromotor ventilating system of closed circulation of the present utility model is according to the problem of prior art existence, bearing rib 6 is designed to the blade of similar fan, thereby the air circulation in the drive motors, and conventional motors split become rotor field spider 9 and support 10, and rotor field spider 9 and support 10 cooperatively interact, so that its inner seal cavity that forms, be convenient to hold stator and rotor, rotor field spider 9 fixedly is placed on the machine shaft 1 simultaneously, can rotate with machine shaft 1, and support 10 is placed on the machine shaft 1 and can rotates with respect to machine shaft 1, therefore so that can relatively rotate between rotor field spider 9 and the support 10, forming simultaneously hermetically-sealed construction between rotor field spider 9 and the support 10 supports, external rotor and stator can relatively rotate, can rotate with machine shaft 1, and stator is fixed on the support 10 by the stator support frame, external rotor can be with respect to stator rotation, inwall at rotor field spider 9 is provided with bearing rib 6 simultaneously, this bearing rib 6 arrives the effect of gusset on the one hand, stationary housing, it can rotate with machine shaft 1 on the one hand in addition, formation is similar to the structure of fan, wherein bearing rib 6 is fan blade 4, when machine shaft 1 rotates, bearing rib 6 rotates centered by machine shaft 1 with rotor field spider 9, play the effect of fan, the drive motors inner air forms interior circulation, the heat that stator and external rotor is relatively rotated generation brings on the housing, cool off, utilize the bearing rib 6 of rotor inside as the fans drive air, then be installed in motor internal without the specialized designs fan, save the space, reduce motor volume, and take full advantage of external rotor 3 fans and drive the cooling effect that extraneous air plays motor housing, the heat that promptly brings motor housing the motor internal air circulation is taken away good heat dissipation effect.
The utility model is not limited to aforesaid embodiment.The utility model expands to any new feature or any new combination that discloses in this manual, and the arbitrary new method that discloses or step or any new combination of process.
Claims (5)
1. the external rotor fan electromotor ventilating system of a closed circulation, it is characterized in that: it comprises machine shaft (1), stator support frame (5), stator core (2), rotor core (3), fan blade (4), rotor field spider (9) and support (10); Wherein support (10) is placed in outside the machine shaft (1), and described machine shaft (1) can rotate with respect to support (10); Be fixed with stator support frame (5) on the described support (10), be provided with stator core (2) on the described stator support frame (5) and form stator; The upper fixed cover of described machine shaft (1) is equipped with rotor field spider (9), described rotor field spider (9) cooperates the formation confined space with support (10), outer wall at rotor field spider (9) is fixed with fan blade (4), inwall at rotor field spider (9) is fixed with rotor core (3), described rotor core (3) is relative with stator core (2), described rotor field spider (9), rotor core (3) and fan blade (4) form external rotor, and this external rotor can rotate with respect to stator; Inwall at rotor field spider (9) is provided with bearing rib (6), and when machine shaft (1) rotated, bearing rib (6) rotated centered by machine shaft (1) with rotor field spider (9), and the drive motors inner air forms interior circulation.
2. the external rotor fan electromotor ventilating system of closed circulation as claimed in claim 1 is characterized in that: described rotor field spider (9) can rotate with respect to support (10), simultaneously sealing formation movable sealing structure between rotor field spider (9) and the support (10).
3. the external rotor fan electromotor ventilating system of closed circulation as claimed in claim 1 or 2, it is characterized in that: described rotor core (3) is formed by stacking by rotor punching, offers respectively ventilation hole on described stator support frame (5) and the rotor punching; When machine shaft (1) drives the external rotor rotation, bearing rib (6) drive motors inner air, the ventilation hole on the ventilation hole on the rotor punching, stator support frame (5), rotor field spider (9) inner chamber and stator core (2) form inner cycle channel with the space at rotor core (3) two ends.
4. the external rotor fan electromotor ventilating system of closed circulation as claimed in claim 3, it is characterized in that: described bearing rib (6) is triangular structure, on the inwall of described bearing rib (6) perpendicular to rotor field spider (9), the direction of bearing rib (6) is vertical with rotor punching simultaneously; Described bearing rib (6) is a plurality of, and is distributed in centered by the internal taper hole of rotor field spider (9) on rotor field spider (9) inwall.
5. such as the external rotor fan electromotor ventilating system of claim 1 or 2 or 4 described closed circulation, it is characterized in that: described fan blade (4) is for a plurality of, and described fan blade (4) is distributed on the outer wall of rotor field spider (9) centered by machine shaft (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220423029 CN202798343U (en) | 2012-08-24 | 2012-08-24 | Closed cycle outer rotor fan motor ventilation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220423029 CN202798343U (en) | 2012-08-24 | 2012-08-24 | Closed cycle outer rotor fan motor ventilation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202798343U true CN202798343U (en) | 2013-03-13 |
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ID=47825516
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220423029 Expired - Lifetime CN202798343U (en) | 2012-08-24 | 2012-08-24 | Closed cycle outer rotor fan motor ventilation system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202798343U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102857027A (en) * | 2012-08-24 | 2013-01-02 | 南车成都机车车辆有限公司 | Closely circulating ventilating system of fan motor of outer rotor |
| CN105673508A (en) * | 2014-11-18 | 2016-06-15 | 上海日立电器有限公司 | Rolling rotor type compressor |
| CN111472987A (en) * | 2020-05-22 | 2020-07-31 | 核工业理化工程研究院 | Corrosive gas circulating pump |
-
2012
- 2012-08-24 CN CN 201220423029 patent/CN202798343U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102857027A (en) * | 2012-08-24 | 2013-01-02 | 南车成都机车车辆有限公司 | Closely circulating ventilating system of fan motor of outer rotor |
| CN102857027B (en) * | 2012-08-24 | 2016-04-20 | 中车成都机车车辆有限公司 | A kind of external rotor fan electromotor ventilating system of closed circulation |
| CN105673508A (en) * | 2014-11-18 | 2016-06-15 | 上海日立电器有限公司 | Rolling rotor type compressor |
| CN111472987A (en) * | 2020-05-22 | 2020-07-31 | 核工业理化工程研究院 | Corrosive gas circulating pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130313 Effective date of abandoning: 20160420 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |