CN109327104A - A kind of magneto alternator radiator structure for unmanned plane power-supply system - Google Patents
A kind of magneto alternator radiator structure for unmanned plane power-supply system Download PDFInfo
- Publication number
- CN109327104A CN109327104A CN201811520125.1A CN201811520125A CN109327104A CN 109327104 A CN109327104 A CN 109327104A CN 201811520125 A CN201811520125 A CN 201811520125A CN 109327104 A CN109327104 A CN 109327104A
- Authority
- CN
- China
- Prior art keywords
- casing
- centrifugal fan
- radial
- stator winding
- unmanned plane
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- 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
-
- 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
- H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
- H02K9/06—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft
Abstract
The present invention proposes a kind of magneto alternator radiator structure for unmanned plane power-supply system, including casing and ventilation structure；Circumferentially distributed ventilation opening is equipped on chassis sidewall at casing end positions；Ventilation structure is made of shaft, bracket and rotor rim；Bracket is star hollow sting, has the radial ribs being distributed uniformly and circumferentially on stent outer wall, and radial ribs are divided axially into the different two parts of radial dimension along cylindrical structure, one section of small radial ribs outer circle of radial dimension supports fixed rotor magnetic yoke；One section of big radial ribs of radial dimension are as centrifugal fan.The present invention is by being machined with ventilation opening in electric generator casing both ends corresponding position, star hollow sting is equipped on rotor assembly, form ventilating duct, hollow sting end is designed to centrifugal fan form, reduce motor temperature rise, motor weight is effectively reduced again, is effectively simplified rotor structure, solves the problems, such as motor weight greatly and heat dissipation is difficult.
Description
Technical field
The present invention relates to alternating current generator radiator structure technical field, permanent magnetism used in specially a kind of unmanned electromechanical source is handed over
The radiator structure for flowing generator, the weight and radiating requirements of unmanned electromechanical source are met by motor ventilation structure design.
Background technique
The radiating mode of generator is by assembling independent aerofoil fan group on rotor in conventional on-board power supply
Part, the fan are positioned by key, and the mode that inner hole installs bushing additional is fixed on rotor.The aerofoil fan is by external axial cold airflow
It sucks in motor, it is cooling to internal structure of motor, then thermal current is excluded outside motor.The axial flow fan structure is complicated, failure
Rate is high, and weight and volume is larger.Because unmanned plane motor has the particular/special requirement of small in size, light-weight, reliable operation etc., so should
The cooling structure design of motor must be with light-weight, and structure simply, premised on reliable operation is carried out from heat dissipation design.
The generator is mounted in aircraft cabin, passes through the seam allowance on the seam allowance and engine attachment base of motor case end
It is mating, it is fixed with several interference bolts on casing.Rotor is connect by the conical surface and Woodruff key of axle stretch end with half a coupler,
Mechanical output is transmitted to generator.So generator does not have windstream cooling, cooling air cannot be from axial blowout, Zhi Nengcong
Motor case side passes through.So traditional airborne power supply generator air-cooled structure design is not suitable for the generator.
Summary of the invention
In order to solve the problems existing in the prior art, the present invention proposes that a kind of permanent magnet AC for unmanned plane power-supply system is sent out
It is empty to be equipped with star by being machined with ventilation opening in electric generator casing both ends corresponding position on rotor assembly for motor radiating structure
Cardiac skeleton forms ventilating duct, and hollow sting end is designed to centrifugal fan form, that is, reduces motor temperature rise, and effectively reduce
Motor weight, it is this by centrifugal fan and star-shaped support integrated design thought, it is effectively simplified rotor structure, solves electricity
Problem of the machine weight greatly with heat dissipation hardly possible.
The technical solution of the present invention is as follows:
A kind of magneto alternator radiator structure for unmanned plane power-supply system, it is characterised in that: including machine
Shell and ventilation structure；
Bearing chamber is equipped in the casing, casing end face is equipped with seam allowance and interference thread hole；Close to machine on chassis sidewall
At shell end positions be equipped with circumferentially distributed ventilation opening, ventilation opening size with and position according to the stator winding end installed in casing
The size and location of portion's line packet determines, in the case where meeting case strength requirement, ventilation opening size is not less than stator winding end line packet
Size, vent position can cover stator winding end line packet；
The ventilation structure is made of shaft, bracket and rotor rim；Shaft is mounted in casing, and passes through casing
The indoor bearing of bearing and casing cooperate；
The bracket is star hollow sting；In the star hollow sting centered cylinder structure with for shaft mistake
It is full of the axially extending bore of cooperation, there are the radial ribs being distributed uniformly and circumferentially on the lateral wall of centered cylinder structure, and
Radial ribs are divided axially into the different two parts of radial dimension, one section of small radial ribs outer circle of radial dimension along cylindrical structure
Support fixed rotor magnetic yoke；One section of big radial ribs of radial dimension are used as centrifugal fan, and the axial position of centrifugal fan and
The axial position of stator winding end line packet is consistent, the axial ruler of the axial dimension covering stator winding end line packet of centrifugal fan
Very little, there are gaps between the outer diameter of centrifugal fan and the internal diameter of stator winding end line packet.
Further preferred embodiment, a kind of magneto alternator radiator structure for unmanned plane power-supply system,
It is characterized by: the lateral surface of casing is equipped with circular radiating slot with increasing heat radiation area.
Further preferred embodiment, a kind of magneto alternator radiator structure for unmanned plane power-supply system,
It is characterized by: being equipped with magnet steel outside rotor rim, one layer of stainless steel ring is cased with outside magnet steel.
Beneficial effect
The present invention has the advantages that
The new structure of 1 permanent magnet generator star-shaped support provided by the invention not only has so that bracket has multi-functional
There is supporting role, and have the function of centrifugal fan, so that rotor structure is compact, good manufacturability.It is this by centrifugal fan and
Star-shaped support integrated design thought is effectively simplified rotor structure, improves product reliability.
2 use star-shaped support structure, so that rotor assembly is become hollow structure, have both constituted motor internal heat dissipating channel in this way,
Motor weight is effectively reduced again, solves the problems, such as motor weight greatly and heat dissipation is difficult.
3 by efficiently solving unmanned electromechanics in stator, the reasonable ventilating duct design of rotor and reasonable material selection
The problem of machine temperature increases.
Additional aspect and advantage of the invention will be set forth in part in the description, and will partially become from the following description
Obviously, or practice through the invention is recognized.
Detailed description of the invention
Above-mentioned and/or additional aspect of the invention and advantage will become from the description of the embodiment in conjunction with the following figures
Obviously and it is readily appreciated that, in which:
Fig. 1: electric generator structure schematic diagram of the present invention；
Fig. 2: rotor structure outside drawing of the present invention；
Fig. 3: rack assumption diagram of the present invention；(a) right view；(b) main view；(c) left view；
Fig. 4: the isometric views of bracket of the present invention.
Specific embodiment
The embodiment of the present invention is described below in detail, the embodiment is exemplary, it is intended to it is used to explain the present invention, and
It is not considered as limiting the invention.
As shown in Figure 1, one of the present embodiment is used for the magneto alternator radiator structure of unmanned plane power-supply system,
Including casing and ventilation structure.
The casing uses high-strength material, and inside is equipped with bearing chamber, and casing end face is equipped with seam allowance and 6 interference threads
Hole.Be equipped with circumferentially distributed ventilation opening at the casing end positions on chassis sidewall, ventilation opening size with and position according to
The size and location for the stator winding end line packet installed in casing determines, in the case where meeting case strength requirement, ventilation opening size
Not less than the size of stator winding end line packet, vent position can cover stator winding end line packet.The outer circle side of casing
Face is equipped with circular radiating slot increasing heat radiation area.
The ventilation structure is made of shaft, bracket and rotor rim；Shaft is mounted in casing, and passes through casing
The indoor bearing of bearing and casing cooperate.
The bracket is star hollow sting；In the star hollow sting centered cylinder structure with for shaft mistake
It is full of the axially extending bore of cooperation, there are the radial ribs being distributed uniformly and circumferentially on the lateral wall of centered cylinder structure, and
Radial ribs are divided axially into the different two parts of radial dimension, one section of small radial ribs outer circle of radial dimension along cylindrical structure
Fixed rotor magnetic yoke is supported, magnet steel is housed outside rotor rim, magnet steel outermost layer is cased with one layer of stainless steel ring.Radial dimension it is big one
Section radial ribs are as centrifugal fan, and the axial position of centrifugal fan is consistent with the axial position of stator winding end line packet,
The axial dimension of the axial dimension covering stator winding end line packet of centrifugal fan, the outer diameter and stator winding end of centrifugal fan
There are gaps between the internal diameter of line packet.
Cooling air is entered in motor by 1 non-transmision end air inlet 2-1 of motor case, penetrates stator winding leading-out terminal end
The line packet 3-1 in portion, after being cooled down to line packet 3-1, the cooling air-flow one section 4-1 small by star-shaped support radial dimension on rotor
Ventilating duct, be pressurized after being cooled down to rotor rim 5 through one section of big 4-2 (centrifugal fan) of star-shaped support radial dimension, so
The line packet 3-2 for penetrating stator winding the other end afterwards, cools down line packet 3-2, finally by hot-air from another on casing 1
Hold ventilation opening 2-2 discharge.Another important internal heat dissipating channel not only is increased to motor in this way, but also reduces motor weight.
Make air-flow from casing ventilation opening 2-1-winding overhang line packet 3-1-- hollow sting 4-1--- centrifugal fan 4-2-winding overhang line
It wraps 3-2-- enclosure vent mouth 2-2 and forms a ventilating duct.And it is externally provided with circular radiating slot 6 in casing 1, so that motor can be improved
Heat dissipation effect.
In order to guarantee generator in the adaptability problem of hot environment, the insulation system of the motor is C class F insulating material F,
Select the measures such as the high-temperature rare earth magnet steel that Curie temperature is 710 DEG C, it is ensured that the stability of performance when its high temperature.Pass through electromagnetism
Design, the thermic load of the generator are 122A2/mm3, and from heat dissipation generator, thermic load is smaller.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art are not departing from the principle of the present invention and objective
In the case where can make changes, modifications, alterations, and variations to the above described embodiments within the scope of the invention.
Claims (3)
1. a kind of magneto alternator radiator structure for unmanned plane power-supply system, it is characterised in that: including casing and turn
Sub- aeration structure；
Bearing chamber is equipped in the casing, casing end face is equipped with seam allowance and interference thread hole；Close to casing two on chassis sidewall
At end position be equipped with circumferentially distributed ventilation opening, ventilation opening size with and position according to the stator winding end line installed in casing
The size and location of packet determines, in the case where meeting case strength requirement, ventilation opening size is big not less than stator winding end line packet
Small, vent position can cover stator winding end line packet；
The ventilation structure is made of shaft, bracket and rotor rim；Shaft is mounted in casing, and passes through casing bearing
Indoor bearing and casing cooperate；
The bracket is star hollow sting；With for matching with shaft interference in the star hollow sting centered cylinder structure
The axially extending bore of conjunction has the radial ribs being distributed uniformly and circumferentially on the lateral wall of centered cylinder structure, and radial
Rib is divided axially into the different two parts of radial dimension, the small one section of radial ribs outer circle support of radial dimension along cylindrical structure
Fixed rotor magnetic yoke；One section of big radial ribs of radial dimension are as centrifugal fan, and the axial position and stator of centrifugal fan
The axial position of winding overhang line packet is consistent, the axial dimension of the axial dimension covering stator winding end line packet of centrifugal fan,
There are gaps between the outer diameter of centrifugal fan and the internal diameter of stator winding end line packet.
2. a kind of magneto alternator radiator structure for unmanned plane power-supply system according to claim 1, feature
Be: the lateral surface of casing is equipped with circular radiating slot with increasing heat radiation area.
3. a kind of magneto alternator radiator structure for unmanned plane power-supply system according to claim 1, feature
It is: magnet steel is housed outside rotor rim, one layer of stainless steel ring is cased with outside magnet steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811520125.1A CN109327104A (en) | 2018-12-12 | 2018-12-12 | A kind of magneto alternator radiator structure for unmanned plane power-supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811520125.1A CN109327104A (en) | 2018-12-12 | 2018-12-12 | A kind of magneto alternator radiator structure for unmanned plane power-supply system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109327104A true CN109327104A (en) | 2019-02-12 |
Family
ID=65257369
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811520125.1A Pending CN109327104A (en) | 2018-12-12 | 2018-12-12 | A kind of magneto alternator radiator structure for unmanned plane power-supply system |
Country Status (1)
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| CN (1) | CN109327104A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110412462A (en) * | 2019-07-06 | 2019-11-05 | 陕西航空电气有限责任公司 | A kind of aviation permasyn morot transient temperature prediction technique |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2074072U (en) * | 1989-09-29 | 1991-03-27 | 遵义电机厂 | Disk-type electric machine with internal air-duct |
| CN103580383A (en) * | 2013-11-18 | 2014-02-12 | 沈阳工业大学 | Air-water-hybrid cooled high-speed permanent magnet motor with rotor under hybrid protection |
| CN105337430A (en) * | 2015-12-03 | 2016-02-17 | 卧龙电气南阳防爆集团股份有限公司 | Square box motor with radial-duct-free ventilating and cooling structure |
| CN108702046A (en) * | 2016-02-22 | 2018-10-23 | 西门子股份公司 | The rotor of the electric rotating machine of permanent-magnet-field and its application |
-
2018
- 2018-12-12 CN CN201811520125.1A patent/CN109327104A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2074072U (en) * | 1989-09-29 | 1991-03-27 | 遵义电机厂 | Disk-type electric machine with internal air-duct |
| CN103580383A (en) * | 2013-11-18 | 2014-02-12 | 沈阳工业大学 | Air-water-hybrid cooled high-speed permanent magnet motor with rotor under hybrid protection |
| CN105337430A (en) * | 2015-12-03 | 2016-02-17 | 卧龙电气南阳防爆集团股份有限公司 | Square box motor with radial-duct-free ventilating and cooling structure |
| CN108702046A (en) * | 2016-02-22 | 2018-10-23 | 西门子股份公司 | The rotor of the electric rotating machine of permanent-magnet-field and its application |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110412462A (en) * | 2019-07-06 | 2019-11-05 | 陕西航空电气有限责任公司 | A kind of aviation permasyn morot transient temperature prediction technique |
| CN110412462B (en) * | 2019-07-06 | 2021-06-08 | 陕西航空电气有限责任公司 | Transient temperature prediction method for permanent magnet synchronous motor for aviation |
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| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190212 |
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| RJ01 | Rejection of invention patent application after publication |