CN202550740U - Fan-free motor cooling structure - Google Patents

Fan-free motor cooling structure Download PDF

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Publication number
CN202550740U
CN202550740U CN201220164068XU CN201220164068U CN202550740U CN 202550740 U CN202550740 U CN 202550740U CN 201220164068X U CN201220164068X U CN 201220164068XU CN 201220164068 U CN201220164068 U CN 201220164068U CN 202550740 U CN202550740 U CN 202550740U
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CN
China
Prior art keywords
fan
cooling
water jacket
air
motor
Prior art date
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Active
Application number
CN201220164068XU
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Chinese (zh)
Inventor
毕刘新
张超
杨平西
杨帆
陈琳
李姗
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SHANGHAI CSIC SHIP PROPULSION EQUIPMENT CO., LTD.
Original Assignee
No 704 Research Institute of CSIC
Priority date (The priority date 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 date listed.)
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Priority to CN201220164068XU priority Critical patent/CN202550740U/en
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Publication of CN202550740U publication Critical patent/CN202550740U/en
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Abstract

The utility model relates to a fan-free motor cooling structure. A plurality of incline axial venting holes are arranged in a rotor, a water jacket is sleeved outside a stator, and an air sleeve is sleeved outside the water jacket. The water jacket is of an annular or S structure and is provided with a water inlet and a water outlet, a cooling sheet is arranged inside the air jacket and is matched and connected with the outer wall of the water jacket, and the inner wall of the water jacket is matched and connected with a motor stator. When a fan-free structure is at high speed, the noise and the vibration are lowered, and the reliability of a mechanical structure is improved, thus the fan-free motor cooling structure is very suitable for the field of high-speed motors; and by using a loop of an air path and matching with the traditional water jacket cooling structure, two times of cooling contact area can be increased, thus the ventilating cooling effect is greatly improved. According to the utility model, a centrifugal force of the rotor during rotating is adopted for replacing pressure of internally circulating air provided by the fan, so that the problems of noise and vibration caused by the fan at high speed are solved; and in addition, an air jacket structure is additionally provided, while an internal air circulating loop is provided, the heat exchange area is increased, and the cooling effect of the motor is improved.

Description

The motor cooling structure of no fan
Technical field
The utility model patent relates to a kind of motor cooling structure, especially a kind of cooling structure that is suitable for the high speed high power density motor.
Background technology
Motor adopts aerofoil fan or centrifugal fan to produce inner blast mostly at present, realizes inner coolant circulation; But when motor was high-speed electric expreess locomotive, the noise of fan, vibration and intensity became the bottleneck of high-speed electric expreess locomotive design.
The tradition settling mode is to adopt outside blower fan that blast is provided, but this will increase extra accessory motor and power supply unit, increase the complexity of system.
Summary of the invention
The utility model is that a kind of motor cooling structure that does not have fan will be provided, and is used in the cooling technology problem that solves high-speed electric expreess locomotive, and this structure has been cancelled traditional fan, and the centrifugal force that utilizes the rotor rotation to produce provides blast, realizes inner wind circulation.
For realizing above-mentioned purpose, the technical scheme of the utility model is: a kind of motor cooling structure that does not have fan, comprise rotor, and stator is characterized in: have the axial ventilation hole of some inclinations in the rotor, the stator outside is with water jacket, and the water jacket outside is with the wind cover.
Water jacket is annular or S type structure, which is provided with entery and delivery port; Wind cover inside is provided with cooling fin, and cooling fin and water-jacket outer wall are connected; Water jacket inwall and motor stator are connected.
The beneficial effect of the utility model is:
The rotor of the utility model has the axial ventilation hole of inclination, when rotor rotates, because the existence of centrifugal force; Can produce blast between two ends of rotor; The circulation of promotion inner air when air is flowed through stator end, can effectively be cooled off the end; Air passes through the wind cover of water jacket outside then, realizes the closed-loop path.Wherein: the wind cover has two effects:
(1) loop that provides inner air to circulate.
(2) can install air/water cooler additional in the wind cover, increase heat exchange area, thereby improve the cooling effect of motor.
Install water jacket additional between stator outside and the wind cover in addition, this water jacket is traditional jacket structure for water, and different is that air/water cooler and water jacket integrated design in the wind cover can shared cooling waters.
The utility model is compared traditional fan structure and jacket structure for water, has the following advantages:
1) compare traditional motor shaft fan, no fan structure has not only reduced noise, vibration when high speed, improved the reliability of mechanical structure simultaneously, therefore is fit to very much the high-speed electric expreess locomotive field;
2) utilize the loop of wind path, cooperate traditional water jacket cooling structure, can increase the cooling contact area of twice, improved the ventilation cooling effect greatly.
Centrifugal force when the utility model adopts the rotor rotation replaces fan that the blast of inner loop is provided, and has solved noise and the vibration problem of descending fan to bring at a high speed; Increase this structure of wind cover in addition, when the inner air circulation circuit is provided, increased heat exchange area, improved the cooling effect of motor.
Description of drawings
Fig. 1 is the structure cutaway view of the utility model;
Fig. 2 is the left cutaway view of Fig. 1.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is described further.
Like Fig. 1, shown in 2, the high efficiency motor cooling structure of the no fan of the utility model comprises rotor 1, stator 7, water jacket 3, wind cover 5 etc.
Rotor 1 has the axial ventilation hole 2 of inclination, and stator 7 outsides are with water jacket 3, and water jacket is loop configuration or S type structure; Have entery and delivery port 4 on it, water jacket 3 outsides are wind covers 5, both shared walls; Wind overlaps 5 inside and installs cooling fin etc. additional, so that increase area of dissipation.Wind overlaps 5 inside and is provided with cooling fin, and cooling fin and water jacket 3 outer walls are connected; Water jacket 3 inwalls and motor stator are connected.
When rotor 1 rotation, can produce blast at two ends, blast drives hot-air and flows through rotor ventilation hole 2; Through behind the stator end 6 cooling stator ends, get into stator wind cover 5 then, wind overlaps 5 inside and has cooling fin; Cooling fin is fixed on the shared wall; Can the heat of hot blast be passed on the wall through cooling fin, and then pass to the cooling water of water jacket 3 inside, a part of in addition heat spreads out of motor through the outer wall of wind cover 5.
In addition; In order better to increase cooling effect, install water jacket 3 additional between wind cover 5 and the stator 7, water jacket 3 inwalls cooperate with motor stator 7 direct hot jackets; The heat major part of stator core and stator winding is passed to water jacket 3 through stator 7 outer walls through heat conduction, through external refrigeration water heat is taken away then.

Claims (4)

1. motor cooling structure that does not have fan; Comprise rotor (1), stator (7) is characterized in that: the axial ventilation hole (2) that has some inclinations in the said rotor (1); Stator (7) outside is with water jacket (3), and water jacket (3) outside is with wind cover (5).
2. the motor cooling structure of no fan according to claim 1 is characterized in that: said water jacket (3) is annular or S type structure, which is provided with entery and delivery port (4).
3. the motor cooling structure of no fan according to claim 1, it is characterized in that: said wind cover (5) inside is provided with cooling fin, and cooling fin and water jacket (3) outer wall are connected.
4. the motor cooling structure of no fan according to claim 1, it is characterized in that: said water jacket (3) inwall and motor stator (7) are connected.
CN201220164068XU 2012-04-18 2012-04-18 Fan-free motor cooling structure Active CN202550740U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201220164068XU CN202550740U (en) 2012-04-18 2012-04-18 Fan-free motor cooling structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201220164068XU CN202550740U (en) 2012-04-18 2012-04-18 Fan-free motor cooling structure

Publications (1)

Publication Number Publication Date
CN202550740U true CN202550740U (en) 2012-11-21

Family

ID=47171307

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201220164068XU Active CN202550740U (en) 2012-04-18 2012-04-18 Fan-free motor cooling structure

Country Status (1)

Country Link
CN (1) CN202550740U (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102611249A (en) * 2012-04-18 2012-07-25 中国船舶重工集团公司第七0四研究所 Fanless motor cooling structure
CN104638794A (en) * 2013-11-07 2015-05-20 博世汽车部件(长沙)有限公司 Motor
CN107508415A (en) * 2017-09-11 2017-12-22 珠海格力节能环保制冷技术研究中心有限公司 Motor
CN109728668A (en) * 2018-12-19 2019-05-07 武汉船用电力推进装置研究所(中国船舶重工集团公司第七一二研究所) A kind of ventilation cooling structure of rotor

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102611249A (en) * 2012-04-18 2012-07-25 中国船舶重工集团公司第七0四研究所 Fanless motor cooling structure
CN104638794A (en) * 2013-11-07 2015-05-20 博世汽车部件(长沙)有限公司 Motor
CN107508415A (en) * 2017-09-11 2017-12-22 珠海格力节能环保制冷技术研究中心有限公司 Motor
CN107508415B (en) * 2017-09-11 2020-01-10 珠海格力电器股份有限公司 Electric machine
CN109728668A (en) * 2018-12-19 2019-05-07 武汉船用电力推进装置研究所(中国船舶重工集团公司第七一二研究所) A kind of ventilation cooling structure of rotor

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Legal Events

Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
TR01 Transfer of patent right

Effective date of registration: 20151117

Address after: 200031 Xuhui District, Hengshan Road, No. 10,

Patentee after: SHANGHAI CSIC SHIP PROPULSION EQUIPMENT CO., LTD.

Address before: 200031 Xuhui District, Hengshan Road, No. 10,

Patentee before: No.704 Institute of China Shipbuilding Industry Corporation

C41 Transfer of patent application or patent right or utility model