CN112350498A - Novel cooling device for motor - Google Patents
Novel cooling device for motor Download PDFInfo
- Publication number
- CN112350498A CN112350498A CN202011490855.9A CN202011490855A CN112350498A CN 112350498 A CN112350498 A CN 112350498A CN 202011490855 A CN202011490855 A CN 202011490855A CN 112350498 A CN112350498 A CN 112350498A
- Authority
- CN
- China
- Prior art keywords
- cooling water
- motor
- water channel
- channel
- heat
- 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
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- 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
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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
- H02K9/14—Arrangements for cooling or ventilating wherein gaseous cooling medium circulates between the machine casing and a surrounding mantle
- H02K9/16—Arrangements for cooling or ventilating wherein gaseous cooling medium circulates between the machine casing and a surrounding mantle wherein the cooling medium circulates through ducts or tubes within the casing
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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
- H02K9/14—Arrangements for cooling or ventilating wherein gaseous cooling medium circulates between the machine casing and a surrounding mantle
- H02K9/18—Arrangements for cooling or ventilating wherein gaseous cooling medium circulates between the machine casing and a surrounding mantle wherein the external part of the closed circuit comprises a heat exchanger structurally associated with the machine casing
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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
- H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Cooling System (AREA)
- Motor Or Generator Frames (AREA)
Abstract
The invention relates to a novel cooling device for a motor, which comprises a water outlet, a shell outer sleeve, a shell inner sleeve, a water inlet, a hot air channel, a water channel partition plate, a spiral cooling water channel, an air inlet and an air outlet, wherein the shell inner sleeve is provided with the hot air channel and the cooling water channel, the cooling water channel is provided with a baffle plate, the axial length of the shell outer sleeve is greater than that of the shell inner sleeve, and a gap between a spiral cooling water channel pipe body and an annular interlayer is filled with heat-conducting glue with good heat-conducting property to form a heat-conducting glue layer. By adopting the cooling device, the temperature of each part in the motor can be effectively reduced, the local overheating generated in the motor is avoided, and the power density of the motor is improved.
Description
Technical Field
The invention relates to the field of high-power-density motors, in particular to a cooling device for a novel motor.
Background
Along with the development of the motor towards high power, high power density and small volume, the loss of the unit volume of the motor is larger and larger, so that the temperature of each component in the motor is increased, the service life of the motor is directly influenced, and the running reliability of the motor is directly influenced, so that the cooling problem of the motor is more and more paid attention to.
At present, a shell water cooling device is mainly adopted for cooling the high-power-density motor. The water cooling device of the machine shell generally comprises an inner sleeve of the machine shell and an outer sleeve of the machine shell, wherein a heat dissipation rib plate is arranged on an interlayer formed between the inner sleeve of the machine shell and the outer sleeve of the machine shell to improve heat dissipation performance, a stator iron core of the motor is in contact with the inner sleeve of the machine shell and transfers heat in the motor to the inner sleeve of the machine shell, and then the heat in the motor is taken away through cooling water in the interlayer. The water cooling device reduces the temperature rise on the surface of the motor to a certain extent, but has poor cooling effect on the interior of the motor, and the main reason is that the air fluidity in the motor is poor, the heat of each heating source in the motor cannot be effectively dissipated, so that the heat is easily gathered at a certain position in the motor to cause local overheating, thereby affecting the safe operation and the service life of the motor.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the motor cooling device has the advantages of good cooling effect, simple structure and capability of avoiding local overheating in the motor.
The present invention adopts the following technical solutions to solve the above technical problems.
A cooling device for a novel motor comprises a water outlet, a casing outer sleeve, a casing inner sleeve, a water inlet, a hot air channel, a water channel partition plate, a spiral cooling water channel, an air inlet and an air outlet, and is characterized in that an annular interlayer is formed between the casing inner sleeve and the casing outer sleeve, the spiral cooling water channel and the hot air channel are arranged in the annular interlayer, and the spiral cooling water channel and the hot air channel are sealed through the water channel partition plate; the axial length of the outer shell of the shell is greater than that of the inner shell of the shell; the gaps between the spiral cooling water channel pipe body and the annular interlayer are filled with heat-conducting glue with good heat-conducting property to form a heat-conducting glue layer.
Furthermore, a water inlet and a water outlet are respectively arranged at two ends of the casing jacket, the water inlet is opposite to the middle of the spiral cooling water channel and is arranged on the outer surface of the bottom of the casing jacket, and the water outlet is positioned at the outlet of the spiral cooling water channel and is arranged on the outer surface of the top of the casing jacket.
Furthermore, an air inlet hole and an air outlet hole which are communicated with the hot air channel are respectively arranged at two ends of the inner sleeve of the machine shell.
Furthermore, the center of the spiral cooling water channel is over against the heat source of the motor, and a baffle plate is added on the spiral cooling water channel.
Compared with the prior art, the invention has the following beneficial effects by adopting the technical scheme.
Because the annular interlayer is internally provided with the cooling water channel and the hot air channel which are separated by the waterproof baffle, the cooling water passes through the water inlet and spirally spreads along the axial direction of the motor, the hot air channel leads hot air in the motor through an air inlet arranged on the inner sleeve of the shell, the cooling water channel directly exchanges heat with the hot air channel, the cooling water takes away the heat of the hot air, the hot air flows to an air outlet on the inner sleeve of the shell after being cooled and enters a cooling heating source in the motor, the temperature of components such as a stator winding in the motor and the like is effectively reduced, the possibility of generating local hot spots is reduced, the cooling requirement of the motor with high power density is met to the maximum extent, the cooling efficiency is improved, and the power density of the.
Drawings
Fig. 1 is a schematic view of a cooling device for a novel motor of the present invention.
FIG. 2 is a schematic sectional view taken along line A-A in FIG. 1.
FIG. 3 is a schematic view of the spiral water channel plus baffles of the present invention.
In the figure, 1-water outlet, 2-casing outer casing, 3-casing inner casing, 4-water inlet, 5-hot air channel, 6-water channel clapboard, 7-spiral cooling water channel, 8-air inlet and 9-air outlet.
Detailed Description
The invention will now be further described with reference to the accompanying drawings.
The invention provides a cooling device for a novel motor, which comprises a water outlet, a shell outer sleeve, a shell inner sleeve, a water inlet, a hot air channel, a water channel partition plate, a spiral cooling water channel, an air inlet and an air outlet, and is characterized in that an annular interlayer is formed between the shell inner sleeve and the shell outer sleeve, the spiral cooling water channel and the hot air channel are arranged in the annular interlayer, and the spiral cooling water channel and the hot air channel are sealed through the water channel partition plate; the axial length of the outer shell of the shell is greater than that of the inner shell of the shell; the gaps between the spiral cooling water channel pipe body and the annular interlayer are filled with heat-conducting glue with good heat-conducting property to form a heat-conducting glue layer.
As shown in fig. 1, the cooling water enters the spiral cooling water channel through the water inlet and flows along the axial direction of the motor, and because the center of the spiral cooling water channel is arranged at the heat source, the highest temperature area of the motor can be rapidly and effectively cooled when the cooling water is introduced no matter what state the shape, size and distribution position of the heat source are. As shown in fig. 2, hot air at one end of the motor enters the hot air channel through the air inlet and flows along the axial direction of the motor, cooling water exchanges heat with the hot air in the adjacent hot air channel through the water channel partition plate, the cooled hot air flows into the other end of the motor through the air outlet, and then the internal heat sources of the motor are cooled, and the cooling water is heated and flows out of the motor through the water outlet.
When the device is used, the water inlet and the water outlet are respectively connected with the external cooler, the cooling of cooling water after heat exchange is guaranteed, the water pump is arranged on the connecting pipeline to provide pressure, so that the cooling water enters from the water inlet, passes through the spiral cooling water channel and finally flows out from the water outlet, and a closed external water cooling circulation system is formed.
In fig. 1, the axial length of the outer casing of the casing is greater than the axial length of the inner casing of the casing to ensure the sealing performance of the motor, thereby achieving the protection requirement of the high power density motor. The gap between the cooling water channel pipe body and the annular interlayer is filled with heat-conducting glue with good heat-conducting performance to form a heat-conducting glue layer, internal thermal resistance is reduced through the heat-conducting glue, and the heat dissipation efficiency of the water cooling technology is further improved.
In fig. 3, the spiral cooling water channel adopts a baffle plate adding mode to reduce the fluid flow pressure gradient, accelerate the cooling water flow rate and further enhance the heat dissipation effect of the spiral cooling water channel.
The invention is described above with reference to the accompanying drawings, it is obvious that the specific implementation of the invention is not limited by the above-mentioned manner, and it is within the scope of the invention to adopt various modifications of the method concept and technical scheme of the invention or to directly apply the concept and technical scheme of the invention to other occasions without modification.
Claims (4)
1. A novel cooling device for a motor comprises a water outlet (1), a machine shell outer sleeve (2), a machine shell inner sleeve (3), a water inlet (4), a hot air channel (5), a water channel partition plate (6), a spiral cooling water channel (7), an air inlet (8) and an air outlet (9), and is characterized in that an annular interlayer is formed between the machine shell inner sleeve (3) and the machine shell outer sleeve (2), the spiral cooling water channel (7) and the hot air channel (5) are arranged in the annular interlayer, and the spiral cooling water channel (7) and the hot air channel (5) are sealed through the water channel partition plate (6); the axial length of the shell outer sleeve (2) is greater than that of the shell inner sleeve (3); the gaps between the pipe body of the spiral cooling water channel (7) and the annular interlayer are filled with heat-conducting glue with good heat-conducting property to form a heat-conducting glue layer.
2. The cooling device for the novel motor according to claim 1, wherein: the both ends of casing overcoat (2) are equipped with water inlet (4) and delivery port (1) respectively, and water inlet (4) just locate to the centre of spiral cooling water passageway (7) the bottom surface of casing overcoat (2), delivery port (1) are located the exit of spiral cooling water passageway (7), locate the top surface of casing overcoat (2).
3. The cooling device for the novel motor according to claim 1, wherein: both ends of the inner sleeve (3) of the machine shell are respectively provided with an air inlet (8) and an air outlet (9) which are communicated with the hot air channel (5).
4. The cooling device for the novel motor according to claim 1, wherein: the center of the spiral cooling water channel (7) is over against the heat source of the motor, and a baffle plate is arranged on the spiral cooling water channel (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011490855.9A CN112350498A (en) | 2020-12-17 | 2020-12-17 | Novel cooling device for motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011490855.9A CN112350498A (en) | 2020-12-17 | 2020-12-17 | Novel cooling device for motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112350498A true CN112350498A (en) | 2021-02-09 |
Family
ID=74427578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011490855.9A Pending CN112350498A (en) | 2020-12-17 | 2020-12-17 | Novel cooling device for motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112350498A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009089571A (en) * | 2007-10-03 | 2009-04-23 | Asmo Co Ltd | Motor device |
| CN202616918U (en) * | 2012-06-21 | 2012-12-19 | 渤海大学 | Cooling device of motor |
| CN208272758U (en) * | 2018-06-07 | 2018-12-21 | 东莞市合丰电子有限公司 | A kind of combination cooling motor housing |
-
2020
- 2020-12-17 CN CN202011490855.9A patent/CN112350498A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009089571A (en) * | 2007-10-03 | 2009-04-23 | Asmo Co Ltd | Motor device |
| CN202616918U (en) * | 2012-06-21 | 2012-12-19 | 渤海大学 | Cooling device of motor |
| CN208272758U (en) * | 2018-06-07 | 2018-12-21 | 东莞市合丰电子有限公司 | A kind of combination cooling motor housing |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20210209 |
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| WD01 | Invention patent application deemed withdrawn after publication |