CN107994732A - A kind of high power density large-size machine forced ventilation cooling structure - Google Patents
A kind of high power density large-size machine forced ventilation cooling structure Download PDFInfo
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- CN107994732A CN107994732A CN201711382661.5A CN201711382661A CN107994732A CN 107994732 A CN107994732 A CN 107994732A CN 201711382661 A CN201711382661 A CN 201711382661A CN 107994732 A CN107994732 A CN 107994732A
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- cooling structure
- wind turbine
- stator
- shell
- high power
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- 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
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/08—Arrangements for cooling or ventilating by gaseous cooling medium circulating wholly within the machine casing
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
The invention discloses a kind of high power density large-size machine forced ventilation cooling structure, including stator, rotor, stator and rotor are equipped with ventilating duct, the first wind turbine is coaxially arranged with the non-output terminal of the rotor, first wind turbine is centrifugal blower, the outside of the stator is equipped with absolutely empty cooling structure, absolutely empty cooling structure includes shell, heat transfer space is formed between shell and stator, shell is equipped with air inlet and air outlet, air inlet is equipped with the second wind turbine, connected between air outlet and air inlet by multiple heat exchanger tubes, multiple heat exchanger tubes are passed through from the heat transfer space.Organically combined by the first wind turbine and absolutely empty cooling structure, realize heat transfer, heat dissipation, ensure that motor internal rotor, stator temperature in allowed limits, so as to ensure motor normal operation.
Description
Technical field
The invention belongs to technical field of motors, is related to motor cooling channel technology, and especially a kind of high power density is large-scale
Motor ventilation radiator structure.
Background technology
At present, the main trend of motor technology is developed to large capacity, high power density direction.Large capacity, high power are close
Degree motor is mainly characterized by electromagnetic load height, and power caused by unit volume is as many as 1.5 times of common electric machine, while companion
With and come be caloric value increase, therefore limit high power density motor capacity research and development.Therefore, high power density motor
Ventilation and heat is one of primary problem of research.By the engineering practice of domestic big motor technology, rotating speed is low, large capacity, high power
The ventilation and heat design difficulty of density electrical machine is big, is always to trouble one of key problem of technical staff.
In view of the characteristics of high power density motor hot zone is concentrated, and caloric value is big, design of electrical motor must improve motor
Interior wind path air quantity, but influenced by the motor slow-speed of revolution, it is necessary to increase the appearance and size and quantity of internal fan.Application No.
The patent of invention of CN201320211541.X discloses a kind of motor with air cooling mechanism, including motor body, in motor sheet
One end of body is fixed with tubular radiating shell, and the inner of radiating shell is located in the middle part of motor body, and outer end at least extends
To motor body end, on the outside of motor body and on the inside of radiating shell between form heat dissipation channel, it is characterised in that it is described
Radiating shell outer end be fixed with fan mounting base, fan is fixed with fan mounting base, the radiating shell is equipped with
Signal plug, fan power supply socket and motor power socket.Although solving a degree of heat dissipation problem, at the same time also according to
So there are motor length increase, radiating efficiency is high, volume increases, the appearance and size of motor cannot meet high power density, body
The problem of product is small.
The content of the invention
In view of the above-mentioned problems, the present invention provides a kind of forced ventilation cooler construction, ensure that motor ventilation heat dissipation effect is good
It is good, meet high power density motor ventilation and heat needs, and it is safe and reliable to operation.
To reach above-mentioned purpose, using following technical scheme.
A kind of high power density large-size machine forced ventilation cooling structure, including stator, rotor, the stator and rotor are equal
Equipped with ventilating duct, the first wind turbine is coaxially arranged with the non-output terminal of the rotor, first wind turbine is centrifugal blower, described
The outside of stator is equipped with absolutely empty cooling structure, and the absolutely empty cooling structure includes the shell for being sleeved on the stator exterior, described outer
A cylindric heat transfer space is formed between shell and stator, the shell is equipped with air inlet and air outlet, the inlet air
The second wind turbine is equipped with mouthful, is connected between the air outlet and the air inlet by heat exchanger tube, the air outlet and institute
State and connected by multiple heat exchanger tubes between air inlet, multiple heat exchanger tubes are arranged in array and bypass the stator and changed from described
Passed through in heat space.
Second wind turbine is fixed on the shell close to the end of the first wind turbine, and second wind turbine is centrifugal blower,
The air inlet is equipped with kuppe, and the second flabellum of second wind turbine is located at the inlet of kuppe.This horizontal installation
Mode makes the low noise of the second wind turbine, and air quantity is big, the air of outer ventilation circuit is smoothly passed through heat exchanger tube, takes away the heat of heat exchanger tube
Amount, goes out the heat transfer of motor internal；In addition, the second wind turbine and shell installation fixation, reduce vibration.
Two pieces of partition plates being parallel to each other are equipped with the shell, two pieces of partition plates are located at the stator both sides, and the heat exchange is empty
Between be divided into three cavity spaces, the partition plate is equipped with opening corresponding with the first flabellum of the first wind turbine, the heat exchanger tube
Pass through from the partition plate and be connected with the bulkhead seal.
The shell of the absolutely empty cooling structure is equipped with connecting flange close to the end of rotor output, and passes through the connection
Flange is fixed on the engine base of motor.
Be equipped with deflector in the kuppe, the deflector at least one and be evenly distributed in kuppe.Can
Cooling tube is flowed to after the outside air flow reasonable distribution for making to enter in kuppe, so as to give play to the maximum heat dissipation effect of cooling tube
Fruit.
The outside of the absolutely empty cooling structure is equipped with two observation windows diametrically.Centrifugal blower can be monitored at any time
Operation conditions, ensures that centrifugal blower is safe for operation.
The respective independent operating of the first wind turbine, the second wind turbine on absolutely empty cooling structure.The inside wind path of absolutely empty cooling structure：
Under the first fan action, the air in centrifugal blower is pressed into heat transfer space, and air flows downward along vented cavity, is passed through
Heat exchanger tube enters back into the other end of rotor.Because of the first wind turbine negative pressuren zone formed below, stream of hot air in stator is to heat transfer space
Intermediate cavity, flows up by heat exchanger tube, by the first wind turbine, separately flows into two wind intracavitary on the outside of heat transfer space.
In the air circulation process of absolutely empty cooling inside configuration wind path, the hot-air flowed out from rotor, laundry is after heat exchanger tube, heat
Heat exchanger tube is passed to, temperature is reduced, moved in circles, and the heat that motor internal produces continually is passed to heat exchange by air
Pipe.
Absolutely empty cooling structure outer ventilation circuit：Under the action of the second wind turbine, the air in the motor external world axially into kuppe,
Enter heat exchanger tube through air inlet along kuppe, and flowed out from the heat exchanger tube other end.Because outside air temperature is lower than heat exchanger tube temperature,
The heat transfer of heat transfer space gives the outside air for flowing through heat exchanger tube, by outside air in a steady stream constantly the heat band of heat exchanger tube
Go out.
By the combination of interior wind path and outer ventilation circuit, interior wind path realizes heat transfer, and outer ventilation circuit realizes heat dissipation, ensure that motor
Inner rotator, the temperature of stator in allowed limits, so as to ensure that the normal operation of motor.When in absolutely empty cooling structure
Component when something goes wrong, need to only dismantle the fastening bolt of each component, you can will appear from the component of problem from absolutely empty cooling structure
Remove, detachable maintaining is convenient.
Brief description of the drawings
Fig. 1 is the structure diagram of embodiment.
Embodiment
Embodiments of the present invention are illustrated by particular specific embodiment below, those skilled in the art can be by this explanation
Content disclosed by book understands other advantages and effect of the present invention easily.
Please refer to Fig.1.Structure, ratio, size depicted in this specification institute accompanying drawings etc., only coordinating specification
Revealed content, so that those skilled in the art understands and reads, is not limited to the enforceable restriction bar of the present invention
Part, therefore do not have technical essential meaning, the modification of any structure, the change of proportionate relationship or the adjustment of size, are not influencing
Under the effect of present invention can be generated and the purpose that can reach, should all still fall can cover in disclosed technology contents
In the range of.Meanwhile cited such as " on ", " under " in this specification, "left", "right", the term of " centre " and " one ", also
Only understanding for ease of narration, and be not used to limit the enforceable scope of the present invention, its relativeness is altered or modified, in nothing
Under essence change technology contents, when being also considered as the enforceable category of the present invention.
As shown in Figure 1, a kind of high power density large-size machine forced ventilation cooling structure, including stator 1, rotor 2, it is described
Stator 1 and rotor 2 are equipped with ventilating duct, and the first wind turbine 4, first wind are coaxially arranged with the non-output terminal of the rotor 2
Machine 4 is centrifugal blower, and the outside of the stator 1 is equipped with absolutely empty cooling structure 3, and the absolutely empty cooling structure 3 includes being sleeved on described
Shell 31 outside stator 1, forms a cylindric heat transfer space, on the shell 31 between the shell 31 and stator 1
Equipped with air inlet 32 and air outlet 33, the second wind turbine 5, the air outlet 33 and the air inlet are equipped with the air inlet 32
Connected between 32 by multiple heat exchanger tubes 34, multiple heat exchanger tubes 34 are arranged in array around the stator 1 from the heat exchange
Passed through in space.
Second wind turbine 5 is fixed on the shell 31 close to the end of the first wind turbine 4, and second wind turbine 5 is centrifugation
Wind turbine, the air inlet 32 are equipped with kuppe 6, and the second flabellum 51 of second wind turbine 5 is located at the inlet of kuppe 6.
Two pieces of partition plates 35 being parallel to each other are equipped with the shell 31, two pieces of partition plates 35 are located at 1 both sides of stator by institute
State heat transfer space and be divided into three cavity spaces, the partition plate 35 is equipped with open corresponding with the first flabellum 41 of the first wind turbine 4
Mouthful, the heat exchanger tube 34 is passed through from the partition plate 35 and is tightly connected with the partition plate 35.
The shell 31 of the absolutely empty cooling structure 3 is equipped with connecting flange 7 close to the end of 2 output terminal of rotor, and passes through institute
Connecting flange 7 is stated to be fixed on the engine base of motor.
Be equipped with deflector 61 in the kuppe 6, the deflector 61 is equipped with multiple and be evenly distributed in kuppe 6
In.Cooling tube is flowed to after the outside air flow reasonable distribution that can make to enter in kuppe 6, so as to give play to the maximum of cooling tube
Heat dissipation effect.
The outside of the absolutely empty cooling structure 3 is equipped with two observation windows 8 diametrically.Centrifugal blower can be monitored at any time
Operation conditions, ensure centrifugal blower it is safe for operation.
The first wind turbine 4,5 respective independent operating of the second wind turbine on absolutely empty cooling structure 3.The inside of absolutely empty cooling structure 3
Wind path：The first wind turbine 4 effect under, the air in centrifugal blower is pressed into heat transfer space, air along vented cavity to flow down
It is dynamic, the other end of rotor 2 is entered back into by heat exchanger tube 34.Because of 7 negative pressuren zone formed below of centrifugal fan, the hot-air in stator 1
Heat transfer space intermediate cavity is flowed to, is flowed up by heat exchanger tube 34, by the first wind turbine 4, is separately flowed on the outside of heat transfer space
Two wind intracavitary.In the air circulation process of absolutely empty 3 inside wind path of cooling structure, the heat of outflow at rotor 2, stator 1
After heat exchanger tube 34, heat transfer reduces to heat exchanger tube 34, temperature, moves in circles, continually motor internal is produced air
Heat heat exchanger tube 34 is passed to by air.
Absolutely empty 3 outer ventilation circuit of cooling structure：Under the action of the second wind turbine 5, the air in the motor external world is axially into kuppe 6
It is interior, enter heat exchanger tube 34 through air inlet 32 along kuppe 6, and flow out from 34 other end of heat exchanger tube.Because outside air temperature ratio changes
34 temperature of heat pipe is low, and the heat transfer of heat transfer space gives the outside air for flowing through heat exchanger tube 34, by outside air in a steady stream constantly
The heat of heat exchanger tube 34 is taken out of.
By the combination of interior wind path and outer ventilation circuit, interior wind path realizes heat transfer, and outer ventilation circuit realizes heat dissipation, ensure that motor
Inner rotator 2, the temperature of stator 1 in allowed limits, so as to ensure that the normal operation of motor.When absolutely empty cooling structure 3
In component when something goes wrong, need to only dismantle the fastening bolt of each component, you can will appear from the component of problem from absolutely empty cooling knot
Removed on structure 3, detachable maintaining is convenient.
The above-described embodiments merely illustrate the principles and effects of the present invention, not for the limitation present invention.It is any ripe
Know the personage of this technology all can carry out modifications and changes under the spirit and scope without prejudice to the present invention to above-described embodiment.Cause
This, those of ordinary skill in the art is complete without departing from disclosed spirit and institute under technological thought such as
Into all equivalent modifications or change, should by the present invention claim be covered.
Claims (6)
1. a kind of high power density large-size machine forced ventilation cooling structure, including stator, rotor, the stator and rotor are all provided with
There is ventilating duct, the first wind turbine be coaxially arranged with the non-output terminal of the rotor, it is characterised in that：First wind turbine is centrifugation
Wind turbine, the outside of the stator are equipped with absolutely empty cooling structure, and the absolutely empty cooling structure includes being sleeved on the outer of the stator exterior
Shell, forms a cylindric heat transfer space between the shell and stator, the shell is equipped with air inlet and air outlet,
The air inlet is equipped with the second wind turbine, is connected between the air outlet and the air inlet by multiple heat exchanger tubes, more
A heat exchanger tube is arranged in array and is passed through from the heat transfer space.
2. high power density large-size machine forced ventilation cooling structure according to claim 1, it is characterised in that：Described second
It is centrifugal blower that wind turbine, which is fixed on the shell close to the end of the first wind turbine, second wind turbine, and the air inlet is equipped with
Kuppe, the second flabellum of second wind turbine are located at the inlet of kuppe.
3. high power density large-size machine forced ventilation cooling structure according to claim 2, it is characterised in that：The water conservancy diversion
Be equipped with deflector in cover, the deflector at least one and be evenly distributed in the kuppe.
4. high power density large-size machine forced ventilation cooling structure according to claim 1, it is characterised in that：The shell
Two pieces of partition plates being parallel to each other inside are equipped with, two pieces of partition plates are located at the stator both sides and the heat transfer space is divided into three cavitys
Space, the partition plate are equipped with opening corresponding with the first flabellum of the first wind turbine, and the heat exchanger tube is passed through from the partition plate
And it is connected with the bulkhead seal.
5. high power density large-size machine forced ventilation cooling structure according to claim 1, it is characterised in that：It is described absolutely empty
The shell of cooling structure is equipped with connecting flange close to the end of rotor output, and is fixed on motor by the connecting flange
On engine base.
6. according to any high power density large-size machine forced ventilation cooling structure of claim 1 to 5, it is characterised in that：
The outside of the absolutely empty cooling structure is equipped with two observation windows diametrically.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711382661.5A CN107994732A (en) | 2017-12-20 | 2017-12-20 | A kind of high power density large-size machine forced ventilation cooling structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711382661.5A CN107994732A (en) | 2017-12-20 | 2017-12-20 | A kind of high power density large-size machine forced ventilation cooling structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107994732A true CN107994732A (en) | 2018-05-04 |
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ID=62038903
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711382661.5A Pending CN107994732A (en) | 2017-12-20 | 2017-12-20 | A kind of high power density large-size machine forced ventilation cooling structure |
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| Country | Link |
|---|---|
| CN (1) | CN107994732A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109412324A (en) * | 2018-09-12 | 2019-03-01 | 四川宏华电气有限责任公司 | A kind of fracturing pump variable-frequency control asynchronous motor |
| CN113675994A (en) * | 2021-07-28 | 2021-11-19 | 大连钰霖电机有限公司 | Box-type motor air direct cooling structure |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN203608029U (en) * | 2013-11-29 | 2014-05-21 | 南阳防爆集团股份有限公司 | Air-cooled structure of box-type variable-frequency motor |
| CN204013084U (en) * | 2014-07-08 | 2014-12-10 | 东方电气集团东方电机有限公司 | A kind of ventilation cooling structure of absolutely empty cooling type wind driven generator |
| CN105515282A (en) * | 2015-12-03 | 2016-04-20 | 卧龙电气南阳防爆集团股份有限公司 | Forced ventilation air-air cooler for variable-frequency motor |
| CN106787394A (en) * | 2016-12-16 | 2017-05-31 | 卧龙电气集团股份有限公司 | The absolutely empty box variable-frequency motor of cooling type |
| CN207638497U (en) * | 2017-12-20 | 2018-07-20 | 卧龙电气集团股份有限公司 | A kind of high power density large-size machine forced ventilation cooling structure |
-
2017
- 2017-12-20 CN CN201711382661.5A patent/CN107994732A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203608029U (en) * | 2013-11-29 | 2014-05-21 | 南阳防爆集团股份有限公司 | Air-cooled structure of box-type variable-frequency motor |
| CN204013084U (en) * | 2014-07-08 | 2014-12-10 | 东方电气集团东方电机有限公司 | A kind of ventilation cooling structure of absolutely empty cooling type wind driven generator |
| CN105515282A (en) * | 2015-12-03 | 2016-04-20 | 卧龙电气南阳防爆集团股份有限公司 | Forced ventilation air-air cooler for variable-frequency motor |
| CN106787394A (en) * | 2016-12-16 | 2017-05-31 | 卧龙电气集团股份有限公司 | The absolutely empty box variable-frequency motor of cooling type |
| CN207638497U (en) * | 2017-12-20 | 2018-07-20 | 卧龙电气集团股份有限公司 | A kind of high power density large-size machine forced ventilation cooling structure |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109412324A (en) * | 2018-09-12 | 2019-03-01 | 四川宏华电气有限责任公司 | A kind of fracturing pump variable-frequency control asynchronous motor |
| CN113675994A (en) * | 2021-07-28 | 2021-11-19 | 大连钰霖电机有限公司 | Box-type motor air direct cooling structure |
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