CN208862696U - A kind of radiator with serration plate and the high power density permanent magnet motor with the radiator - Google Patents
A kind of radiator with serration plate and the high power density permanent magnet motor with the radiator Download PDFInfo
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- CN208862696U CN208862696U CN201821417569.8U CN201821417569U CN208862696U CN 208862696 U CN208862696 U CN 208862696U CN 201821417569 U CN201821417569 U CN 201821417569U CN 208862696 U CN208862696 U CN 208862696U
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- Prior art keywords
- radiator
- installation room
- heat sink
- serration plate
- room
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- 238000009434 installation Methods 0.000 claims abstract description 46
- 230000017525 heat dissipation Effects 0.000 abstract description 13
- 230000000694 effects Effects 0.000 abstract description 10
- 238000009423 ventilation Methods 0.000 abstract description 3
- 238000001816 cooling Methods 0.000 description 9
- 238000012546 transfer Methods 0.000 description 9
- 238000013461 design Methods 0.000 description 8
- 238000004804 winding Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 230000003247 decreasing effect Effects 0.000 description 2
- 230000005389 magnetism Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910000976 Electrical steel Inorganic materials 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
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- Motor Or Generator Cooling System (AREA)
Abstract
The utility model provides a kind of radiator with serration plate, and including several air ducts that supplied gas flows through, at least one installation room is provided in air duct.Installation is provided with serration plate in room, and the serration plate includes several heat sinks, and several heat sinks join end to end to form laciniation.Serration plate abutting is set in installation room, heat sink upper end is abutted against with installation room upper side, and heat sink lower end is abutted against with installation room downside, and it is 15mm that the distance between room upper side and installation room downside are installed in preferred embodiment, heat sink quantity is 10, and heat sink is with a thickness of 3mm.The heat sink of zigzag fashion is utilized in this programme, under the premise of specific train bogie space and motor entrance ventilation condition, brings ideal heat dissipation effect.
Description
Technical field
It is dissipated the utility model relates to mechanical manufacturing field more particularly to a kind of radiator with serration plate and with this
The high power density permanent magnet motor of thermal.
Background technique
Magneto has the characteristics that high power density, efficient, low noise and low-maintenance cost, thus is very suitable to be used as
The traction electric machine of bullet train, the application demand of bullet train the electromagnetic performance of traction electric machine is pushed to it is ultimate attainment so that motor
Heat management becomes key challenge.The heat radiation structure design of motor will not only guarantee the normal operation of trailer system, also give
The long-lived operation duration of high-speed railway application reserves enough secure thresholds.
It is particularly applied to Chinese high-speed train, 600 kilowatts of permanent magnetism for being such as applied to CRH380A train draw electricity
Machine, power density are higher than 1KW/Kg, the heat dissipation design of motor are required high.The heat dissipation design of traction electric machine is needed in electricity
An equalization point is found on magnetic and heat dissipation performance.Good electromagnetic design can improve the power density of motor, lead to unit volume
Heat it is bigger, i.e., it is higher to the requirement of heat-sinking capability.Good heat dissipation design can guarantee that the temperature such as winding and permanent magnet are quick
The temperature of sensing unit is no more than under the threshold temperature and Curie temperature of the class of insulation.
Several air ducts are usually contained in the radiator of motor at present, after cooling air enters motor, by air duct, with electricity
Heat exchange occurs for machine inner air, to realize the heat dissipation effect inside motor.In specific train bogie space and motor
Under the premise of entrance ventilation condition, heat dissipation effect brought by such design is undesirable, is unable to satisfy high-power density permanent magnetic
The radiating requirements of motor.
Utility model content
The utility model is intended to provide a kind of radiator with serration plate, not only possesses good heat convection function
Can, and heat dissipation performance can satisfy the demand of high power density permanent magnet motor.In addition, the utility model, which also provides one kind, has this
The high density magneto of radiator.
A kind of radiator with serration plate is provided at least one in air duct including several air ducts that supplied gas flows through
A installation room.Installation is provided with serration plate in room, and the serration plate includes several heat sinks, several heat sink head and the tail
It is connected to form laciniation.
After such structure: the setting of serration plate increases the contact area with cooling air, increases heat
Exchange, to play better heat dissipation effect.In addition, serration plate can also reduce the maximum temperature rise of permanent magnet and End winding
Value, to improve the hot property of motor.
Further to improve above scheme, the utility model is further arranged to: heat sink is with a thickness of 1-3mm.
Thicker heat sink enhances conduction heat transfer by the area of increase conducting path, while also reducing cooling sky
The area of passage of gas.And suitable heat dissipation plate thickness is chosen, the reduction of the increment value and convective heat transfer of conduction heat transfer can be balanced
Value, to reach optimal effect.
The utility model is further arranged to, and 6 heat sinks are included at least in each installation room.
The utility model is further arranged to, and serration plate abutting is set in installation room, the heat sink upper end and peace
Dress room upper side abuts against, and the heat sink lower end is abutted against with installation room downside.It installs on the downside of room upper side and installation room
The distance between face is at least 13cm.
It is because room upper side and installation room downside are installed in a fairly large number of heat sink and raising using such structure
The distance between can be improved heat dissipation effect.
The utility model is further arranged to, serration plate with abut be set to installation room in, the heat sink upper end with
Installation room upper side abuts against, and the heat sink lower end is abutted against with installation room downside, the upper installation room side and installation
The distance between room downside is 15mm, and the heat sink quantity is 10, and the heat sink is with a thickness of 3m.
It is advanced optimized on the basis of a upper scheme, 16, air duct is arranged altogether in radiator, is formed between adjacent air duct
Angle is 22.5 degree.
It is because this scheme, which is that balance is multi-party, to be influenced, and in specific bogie space and motor using such structure
Under the premise of entrance ventilation condition, selected optimal case.
High power density permanent magnet motor with above-mentioned radiator includes motor housing and motor stator, feature
It is, the radiator is arranged between motor stator and motor housing.
The utility model is further described in detail below in conjunction with attached drawing.
Detailed description of the invention
Fig. 1 is the schematic diagram of radiator in the utility model;
Fig. 2 is the schematic diagram of radiator mounting plate in the utility model;
Fig. 3 is the schematic diagram of the high power density permanent magnet motor in the utility model with radiator.
Specific embodiment
In the following, being specifically described by illustrative embodiment to the utility model.It should be appreciated, however, that not into one
In the case where step narration, original part, structure and features in an embodiment can also be advantageously incorporated into other embodiments
In.
A kind of radiator with serration plate, several air ducts 1 flowed through including supplied gas.It is provided in each air duct 1
At least one installs room 2, is provided with serration plate 3 in the installation room 2, the serration plate 3 includes several heat sinks
4, it joins end to end to form laciniation between the heat sink 4.
Preferably, selection is using the heat sink 4 with a thickness of 1-3mm, in the increment value and convection current for comprehensively considering conduction heat transfer
After the decreasing value of heat transfer, the heat sink 4 of the thickness of 1-3mm has more outstanding heat dissipation effect.
Preferably, 6 heat sinks 4 are included at least in each installation room 2.
Preferably, the abutting of serration plate 3 is set in installation room 2, and 4 upper end of heat sink offsets with installation room upper side 21
It connects, 4 lower end of heat sink is abutted against with installation room downside 22, the distance between installation room upper side 21 and installation room downside 22
At least 13cm.Increase the distance between the quantity of heat sink 4 and the upper and lower side 22 of installation room 2 as far as possible, is conducive to increase
The heat-sinking capability of radiator.
Preferred embodiment in summary is that the distance between installation room upper side 21 and installation room downside 22 are 15mm,
4 quantity of heat sink in each installation room 2 is 10, and the heat sink 4 is with a thickness of 3mm.
Preferably, radiator includes 16 air ducts 1, and the angle formed between adjacent air duct 1 is 22.5 degree.
A kind of high power density permanent magnet motor with above-mentioned heat sinking function, includes motor housing 5 and motor stator 6,
The radiator is arranged between motor stator 6 and motor housing 5.
Herein, one embodiment is provided, to explain different number, different-thickness heat sink 4 and different installations
Influence of the upper and lower side range difference of room 2 to heat dissipation effect.
Embodiment: each is installed into 4 quantity of heat sink in room 2 and is referred to as n, 4 thickness of heat sink is referred to as th, is pacified
Dress room upper side 21 with installation room downside 22 between at a distance from be known as h.Radiator includes 16 air ducts 1, between adjacent air duct 1
The angle of formation is 22.5 degree.
Radiator is mounted in parameter of electric machine motor as shown in Table 1, and cooling air is mentioned by specific ventilating system
It supplies, flow 35M3/Min, pressure 3500Pa.
The structural parameters of 2 motor of table
Title | Parameter |
Rated power | 600KW |
Rated speed | 4200rmm |
Stator outer diameter | 500mm |
Rotor diameter | 316mm |
Gas length | 2mm |
Iron core thickness | 260mm |
Permanent magnetism body thickness | 16mm |
The diameter of axle | 80mm |
Slot number/number of poles | 54/6 |
Every slot conductor number | 8 |
Cooling type | Totally-enclosed air blast cooling |
The silicon steel sheet trade mark | 35WW300 |
Angle shared by each air duct | 22.5 degree |
Air duct number | 16 |
According to the flow and formula of cooling air, can calculate the Reynolds number near air intake vent is 1.9 × 105.It radiates
Ability is with result by can be calculated, and the results are shown in Table 2, and wherein Δ P is pressure difference of the air intake vent to air outlet, TPMWith
Tend-wIt is the maximum temperature rise value of permanent magnet and End winding.
2 radiator heat-sinking capability result of table
Scheme | n | h(mm) | th(mm) | ΔP(Pa) | TPM(K) | Tend-w(K) |
0 | 0 | 15 | 0 | 1640.80 | 140.74 | 182.45 |
1 | 6 | 13 | 1 | 2185.50 | 136.68 | 175.92 |
2 | 6 | 14 | 2 | 2237.08 | 134.24 | 173.08 |
3 | 6 | 15 | 3 | 2245.36 | 133.54 | 172.68 |
4 | 7 | 13 | 1 | 2307.96 | 130.52 | 169.23 |
5 | 7 | 14 | 2 | 2543.98 | 128.01 | 167.94 |
6 | 7 | 15 | 3 | 2517.48 | 127.68 | 165.14 |
7 | 8 | 13 | 1 | 3082.85 | 126.48 | 164.41 |
8 | 8 | 14 | 2 | 3166064 | 125.68 | 163.45 |
9 | 8 | 15 | 3 | 2324.52 | 120.75 | 157.14 |
10 | 9 | 13 | 1 | 4094.44 | 128.41 | 168.47 |
11 | 9 | 14 | 2 | 2896.26 | 119.84 | 157.75 |
12 | 9 | 15 | 3 | 3014.65 | 118.14 | 156.34 |
13 | 10 | 13 | 1 | 3886.48 | 128.68 | 168.74 |
14 | 10 | 14 | 2 | 4647.95 | 117.45 | 156.89 |
15 | 10 | 15 | 3 | 3186.02 | 112.32 | 151.27 |
Compared to initially without the design scheme of serration plate 3, i.e. scheme 0, serration plate 3 is by reducing permanent magnet and end
The maximum temperature rise value of portion's winding, improves the hot property of motor.The temperature rise result under same n value is analyzed it is found that increasing institute in h value
Bring hot property castering action is greater than the effect of th value increase.Also, the promotion that n value increases was wanted than h value and th value
Effect is bigger.
Under the premise of n and h value determines, the increase of th value may promote hot property, it is also possible to bring counter productive.It is thicker
Plate branch by increase conducting path area, enhance conduction heat transfer, while also reducing the area of passage of cooling air,
Turbulence intensity is caused to increase.However, the reduction of cooling air contact area directly affects convective heat transfer.Whether the increase of th value can
Hot property is enough promoted, needs to comprehensively consider the increment value of conduction heat transfer and the decreasing value of convective heat transfer.
By comparing scheme 2 and 3,5 and 6 two-by-two, 7 and 8 and 11 and 12, it can be found that the increase of Th value can hardly mention
Rise hot property, in some instances it may even be possible to lead to reaction.By above-mentioned comparison it is expected that the scheme of n=10, h=15, Th=2/3,
Hot property is poorer than scheme 15.Moreover, the pressure difference in the case where n is greater than 10 obviously has exceeded given model according to scheme 12,13 and 14
It encloses.For scheme 15 compared to scheme 0, the hot property of permanent magnet and End winding improves 20.19% and 17.09% respectively.
Therefore, optimal structural design scheme should choose reasonable th value under n and h value as big as possible, at this
Corresponding result is scheme 15 in text, i.e., the distance between installation room upper side 21 and installation room downside 22 are 15mm, each
Installing 4 quantity of heat sink in room 2 is 10, and the heat sink 4 is with a thickness of 3mm.
This specific embodiment is only the explanation to the utility model, is not limitations of the present invention, ability
Field technique personnel can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but
As long as all by the protection of Patent Law in the scope of the claims of the utility model.
Claims (7)
1. a kind of radiator with serration plate, several air ducts (1) flowed through including supplied gas, which is characterized in that the wind
It is provided at least one installation room (2) in road (1), is provided with serration plate (3), the serration plate in the installation room (2)
(3) include several heat sinks (4), join end to end to form laciniation between the heat sink (4).
2. a kind of radiator with serration plate according to claim 1, which is characterized in that the heat sink (4) is thick
Degree is 1-3mm.
3. a kind of radiator with serration plate according to claim 1 or 2, which is characterized in that each installation
6 pieces of heat sinks (4) are included at least in room (2).
4. a kind of radiator with serration plate according to claim 3, which is characterized in that the serration plate (3)
Abutting is set in installation room (2), and heat sink (4) upper end is abutted against with installation room upper side (21), the heat sink (4)
Lower end is abutted against with installation room downside (22), the distance between the installation room upper side (21) and installation room downside (22)
At least 13cm.
5. a kind of radiator with serration plate according to claim 1, which is characterized in that the serration plate (3)
It is set in installation room (2) with abutting, heat sink (4) upper end is abutted against with installation room upper side (21), the heat sink
(4) lower end is abutted against with installation room downside (22), between the installation room upper side (21) and installation room downside (22)
Distance is 15mm, and heat sink (4) quantity is 10, and the heat sink (4) is with a thickness of 3mm.
6. a kind of radiator with serration plate according to claim 1 or 5, which is characterized in that the radiator
It include 16 air ducts (1), the angle formed between adjacent air duct (1) is 22.5 degree.
7. the high power density permanent magnet motor with the radiator as claimed in claim 6 with serration plate, includes motor
Shell (5) and motor stator (6), which is characterized in that radiator setting motor housing (5) and motor stator (6) it
Between.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201821417569.8U CN208862696U (en) | 2018-08-31 | 2018-08-31 | A kind of radiator with serration plate and the high power density permanent magnet motor with the radiator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201821417569.8U CN208862696U (en) | 2018-08-31 | 2018-08-31 | A kind of radiator with serration plate and the high power density permanent magnet motor with the radiator |
Publications (1)
Publication Number | Publication Date |
---|---|
CN208862696U true CN208862696U (en) | 2019-05-14 |
Family
ID=66416286
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Application Number | Title | Priority Date | Filing Date |
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CN201821417569.8U Expired - Fee Related CN208862696U (en) | 2018-08-31 | 2018-08-31 | A kind of radiator with serration plate and the high power density permanent magnet motor with the radiator |
Country Status (1)
Country | Link |
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CN (1) | CN208862696U (en) |
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2018
- 2018-08-31 CN CN201821417569.8U patent/CN208862696U/en not_active Expired - Fee Related
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CF01 | Termination of patent right due to non-payment of annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190514 |