CN109450174A - A kind of cooling system and motor - Google Patents
A kind of cooling system and motor Download PDFInfo
- Publication number
- CN109450174A CN109450174A CN201910031452.9A CN201910031452A CN109450174A CN 109450174 A CN109450174 A CN 109450174A CN 201910031452 A CN201910031452 A CN 201910031452A CN 109450174 A CN109450174 A CN 109450174A
- Authority
- CN
- China
- Prior art keywords
- cooling system
- stator core
- liquid
- hydrojet
- motor
- 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
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 59
- 239000007788 liquid Substances 0.000 claims abstract description 66
- 239000007921 spray Substances 0.000 claims abstract description 35
- 238000004804 winding Methods 0.000 claims description 4
- 125000004122 cyclic group Chemical group 0.000 claims description 3
- 230000000875 corresponding effect Effects 0.000 description 8
- 230000000694 effects Effects 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 239000000306 component Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Classifications
-
- 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
- H02K9/197—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil in which the rotor or stator space is fluid-tight, e.g. to provide for different cooling media for rotor and stator
-
- 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
Abstract
The invention discloses a kind of cooling system and motor, which includes: setting on the housing for holding the hydrojet cavity of liquid；The inlet being connected to the hydrojet cavity；The liquid outlet being connected to the closed cavity；And the spray hole on shell inner wall corresponding with the stator core is set.When using cooling system of the invention, liquid enters to hydrojet cavity from inlet, and carries out hydrojet to the stator core being located in closed cavity by spray hole, flows out after the liquid of spray hole ejection and stator core heat exchange, then by liquid outlet.Compared with prior art, the liquid of circulation directly extends the service life of motor with stator core contact heat-exchanging so as to improve the cooling efficiency of motor.
Description
Technical field
The present invention relates to technical field of motors, more specifically to a kind of cooling system and motor.
Background technique
Existing automobile drive electric motor operating condition is complicated, due to motor design feature itself, can produce in motor operation course
Raw various losses, so as to cause the motor feels hot.In order to improve the working efficiency of motor, it is necessary to give design of electrical motor cooling system
System, cooling system are mainly divided to two kinds, and one is air-cooled；Another kind is liquid cooling.Compared to air-cooled, liquid cooling it is more efficient.It is existing
Liquid cooling system mainly uses the external type of cooling, i.e. coolant liquid and cooled core component mediate contact, and cooling efficiency is low, influences
The service life of motor.
Summary of the invention
In view of this, extending motor the technical problem to be solved by the present invention is to how improve the cooling efficiency of motor
Service life, for this purpose, the present invention provides a kind of cooling system and motors.
To achieve the above object, the invention provides the following technical scheme:
A kind of cooling system, for the cooling of stator core, the cooling system includes shell and holds the stator iron
The closed cavity of core, the cooling system further include:
It is arranged on the housing for holding the hydrojet cavity of liquid；
The inlet being connected to the hydrojet cavity；
The liquid outlet being connected to the closed cavity；And
Spray hole on shell inner wall corresponding with the stator core is set.
In an embodiment of the invention, the shell includes:
Surround the stator casing of the stator core circumferential surface；
Close the upper cover plate and lower cover plate at the stator casing both ends；And
Intermediate axle sleeve in the middle part of the stator casing, the stator casing, the upper cover plate, the lower cover plate and institute
It states intermediate axle sleeve and surrounds the closed cavity.
In another embodiment, it is provided with the first spoiler on the inner wall of the stator casing, by described
The closed cavity is separated into go back to liquid zone close to the region of the liquid outlet by the first spoiler, close to the region of the spray hole
It is separated into hydrojet area.
In another embodiment of the invention, the quantity of first spoiler is two, is located at the liquid outlet
Two sides.
In another embodiment of the invention, the intermediate axle sleeve is provided with the second choked flow close to the position of the liquid outlet
Plate.
In another embodiment of the invention, the inlet and/or the liquid outlet are arranged on the stator casing.
In another embodiment of the invention, the inlet and the liquid outlet concentrated setting are in the external of the shell
On port.
In another embodiment of the invention, the hydrojet cavity is cyclic structure.
In another of the invention embodiment, the quantity of the spray hole be it is multiple, each spray hole with it is described fixed
The winding space of sub- iron core is corresponding.
The invention also discloses a kind of motor, including stator core and cooling system, the cooling system is any of the above-described
Cooling system described in.
In another embodiment of the invention, the motor is motor in axial magnetic field.
It can be seen from the above technical scheme that liquid enters to spray from inlet when using cooling system of the invention
Sap cavity body, and by spray hole to be located at closed cavity in stator core carry out hydrojet, via spray hole spray liquid with
After stator core heat exchange, then flowed out by liquid outlet.Compared with prior art, the liquid of circulation, which is directly contacted with stator core, changes
Heat extends the service life of motor so as to improve the cooling efficiency of motor.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is a kind of configuration schematic diagram of cooling system provided by the embodiment of the present invention；
Fig. 2 is a kind of schematic perspective view of cooling system provided by the embodiment of the present invention；
Fig. 3 is a kind of schematic illustration of cooling system provided by the embodiment of the present invention；
Fig. 4 is the schematic illustration of another kind cooling system provided by the embodiment of the present invention.
In figure, 100 be shell, 200 be stator core, 300 be inlet, 400 be liquid outlet, 500 be hydrojet cavity,
600 it is spray hole, 700 be the first spoiler, 101 be stator casing, 102 be upper cover plate, 103 be lower cover plate, 104 is jackshaft
Set, 1011 are external-connected port.
Specific embodiment
Core of the invention is to provide a kind of motor, to improve the cooling efficiency of motor, extends the service life of motor.
In addition, embodiments illustrated below does not play any restriction effect to the invention described in the claims content.In addition,
The full content of composition represented by following example is not limited to must as the solution of the invention described in the claims
It needs.
Cooling system in the embodiment of the present invention referring to FIG. 1 to FIG. 4, for the cooling of stator core 200, the cooling
System includes: shell 100；Hold the closed cavity of stator core 200；It is arranged on shell 100 for holding the hydrojet of liquid
Cavity 500；The inlet 300 being connected to hydrojet cavity 500；The liquid outlet 400 being connected to closed cavity；And it is arranged in shell
Spray hole 600 on 100 inner walls corresponding with stator core 200.
When using cooling system of the invention, liquid enters to hydrojet cavity 500 from inlet 300, and passes through spray hole
600 carry out hydrojet to the stator core 200 being located in closed cavity, the liquid and stator core 200 sprayed via spray hole 600
After heat exchange, then flowed out by liquid outlet 400.Compared with prior art, the liquid of circulation directly with 200 contact heat-exchanging of stator core,
So as to improve the cooling efficiency of motor, the service life of motor is extended.
It should be noted that the above-mentioned effect of shell 100 is to hold stator core 200, it is internal to form closed cavity, stator
When iron core 200 is mounted on closed cavity, the liquid sprayed through spray hole 600 can be by the gap of the coil of stator core 200
It circulates, is finally flowed out by liquid outlet 400, to form a kind of cooling circuit.
Hydrojet cavity 500 is arranged among the shell wall of shell 100, that is, the position for being provided with hydrojet cavity 500 is hollow knot
Structure, which can be adjusted according to the position of setting spray hole 600, such as can be shell 100 and surround stator iron
The circumferential surface position of core 200, can be the end face area of shell 100.And the setting position of inlet 300 and liquid outlet 400 also root
It is determined according to the setting position of hydrojet cavity 500.
The shape of above-mentioned shell 100 can have any shape, as long as hydrojet cavity 500 can be arranged, spray hole 600 exists
In protection scope of the present invention.In an embodiment of the invention, shell 100 includes:
Surround the stator casing 101 of 200 circumferential surface of stator core；
Close the upper cover plate 102 and lower cover plate 103 at 101 both ends of stator casing；And
Intermediate axle sleeve 104 positioned at the middle part of stator casing 101, stator casing 101, upper cover plate 102, lower cover plate 103 and in
Between axle sleeve 104 surround closed cavity.
As it can be seen that 100 entirety of shell is divided into four components in the embodiment of the present invention, it can also be according to specific requirements, by shell
Body 100 is divided into three components, for example, regarding upper cover plate 102 and stator casing 101 as integral structure, by lower cover plate 103 and determines
Subshell 101 is handled as integral structure or a part of stator casing 101 and upper cover plate 102 are as integral type
Structure is handled, and another part of stator casing 101 and lower cover plate 103 handle as integral structure, etc..
In order to further increase cooling efficiency, in another embodiment, it is arranged on the inner wall of stator casing 101
There is the first spoiler 700, closed cavity is separated into back close to the region of liquid outlet 400 by liquid zone by the first spoiler 700, is leaned on
The region of nearly spray hole 600 is separated into hydrojet area.
Under the action of the first spoiler 700, closed cavity is separated into go back to liquid zone and hydrojet area, the hydrojet in hydrojet area
Hole 600 carries out hydrojet, after spraying liquid and the heat exchange of stator core 200, collects in go back to liquid zone, and flow out by liquid outlet 400.Cause
Secondary, under the action of the first spoiler 700, the liquid for enabling to spray hole 600 to spray is uniform by the outside of stator core 200
Flow direction inside, stator core 200 is uniformly cooled down.
The quantity of above-mentioned first spoiler 700 can be one or more, as long as can reach liquid barrier circulation
Structure is within the scope of the invention.In diagram, the quantity of the first spoiler 700 is two, is located at liquid outlet 400
Two sides.So that region of two the first spoilers 700 between liquid outlet 400 forms go back to liquid zone, far from liquid outlet
Region between 400 forms hydrojet area, and spray hole 600 is arranged in hydrojet area on the inner wall of stator casing 101.
Further, intermediate axle sleeve 104 is provided with the second spoiler close to the position of liquid outlet 400.Second spoiler
Effect is, so that the liquid being located inside stator core 200 uniformly flows into go back to liquid zone from the inside of stator core 200, with
Improve cooling efficiency.
According to the structure of shell, hydrojet cavity 500 be can be set on stator casing 101, upper cover plate 102 or lower cover plate
On 103, and corresponding inlet 300 and liquid outlet 400 can be set on stator casing 101, upper cover plate 102 or lower cover plate
On 103.In embodiments of the present invention, hydrojet cavity 500 is arranged on stator casing 101, inlet 300 and/or liquid outlet 400
It is arranged on stator casing 101.
Hydrojet cavity 500 includes one or two inlet 300, and when for an inlet 300, inlet setting is being sprayed
One end of sap cavity body 500, as shown in Figure 3；When for two inlets 300, two inlets 300 are arranged in hydrojet cavity 500
Both ends, as shown in Figure 4.
There are two the settings of inlet 300, is located at the both ends of hydrojet cavity 500, the external-connected port of inlet 300 has one
A outlet.Or inlet 300 has one, positioned at one end of hydrojet cavity 500, the corresponding external-connected port of inlet 300 has
One outlet.
When being arranged on stator casing 101, which can be cyclic structure, and it is whole to surround stator casing 101
It is a, or surround the part of stator casing 101.In order to simplify processing technology, inlet 300 and 1014 concentrated setting of liquid outlet exist
On the external-connected port 1011 of first shell 100.Of course, it is possible to which inlet 300 and liquid outlet 1014 are separately provided as needed
External-connected port 1011.
Further, when setting is there are two inlet 300, and two inlets 300 are located at the both ends of hydrojet cavity 500
When, turbulent flow is formed in order to avoid being located at the liquid at middle part, the middle part of hydrojet cavity 500 is provided with partition.
It should be noted that said stator shell 101 is an integral structure or split type structure, wherein so-called integral type
Structure is exactly, and while processing stator casing 101, the structure of hydrojet cavity 500 just processes together, for example, by using casting
The technique made.When stator casing 101 is split type structure, stator casing 101 includes: the stator base enclosure with hollow structure,
With the sealing ring of sealing hollow structure, sealing ring and stator base enclosure surround hydrojet cavity 500 jointly.
The effect of spray hole 600 is to be cooled down by spray to stator core 200, and spray hole is in the embodiment of the present invention
Nozzle, inject hydrojet cavity 500 in liquid there are certain pressures, under pressure, under the action of spray hole 600,
The liquid sprayed is fine liquid, to improve the contact area of liquid Yu stator core 200.The quantity of spray hole 600
For one or more, multiple spray holes 600 can further increase the hydrojet area of spray hole 600.Further, each hydrojet
Hole 600 is corresponding with the winding space of stator core 200, and each winding space is corresponding with a spray hole.What spray hole sprayed
Liquid can be contacted directly with heat source, and cooling effect is more preferable, liquid energy under the action of the first spoiler 700 and the second spoiler
Uniform divided flows are enough carried out, cooling is more uniform, reduces the temperature of stator core 200 well.
The invention also discloses a kind of motor, including stator core 200 and cooling system, cooling system is any of the above-described
Cooling system.Since above-mentioned cooling system has the above effect, the motor including above-mentioned cooling system also has corresponding effect
Fruit, details are not described herein again.
In another embodiment of the invention, motor is radial magnetic field motor or motor in axial magnetic field, is preferably used
Motor in axial magnetic field.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (11)
1. a kind of cooling system, for the cooling of stator core, the cooling system includes shell and holds the stator core
Closed cavity, which is characterized in that the cooling system further include:
It is arranged on the housing for holding the hydrojet cavity of liquid；
The inlet being connected to the hydrojet cavity；
The liquid outlet being connected to the closed cavity；And
Spray hole on shell inner wall corresponding with the stator core is set.
2. cooling system as described in claim 1, which is characterized in that the shell includes:
Surround the stator casing of the stator core circumferential surface；
Close the upper cover plate and lower cover plate at the stator casing both ends；And
Intermediate axle sleeve in the middle part of the stator casing, the stator casing, the upper cover plate, the lower cover plate and it is described in
Between axle sleeve surround the closed cavity.
3. cooling system as claimed in claim 2, which is characterized in that be provided with the first choked flow on the inner wall of the stator casing
The closed cavity is separated into go back to liquid zone close to the region of the liquid outlet by first spoiler by plate, close to described
The region of spray hole is separated into hydrojet area.
4. cooling system as claimed in claim 3, which is characterized in that the quantity of first spoiler is two, respectively position
In the two sides of the liquid outlet.
5. cooling system as claimed in claim 2, which is characterized in that the intermediate axle sleeve is set close to the position of the liquid outlet
It is equipped with the second spoiler.
6. cooling system as claimed in claim 2, which is characterized in that the inlet and/or the liquid outlet are arranged in institute
It states on stator casing.
7. such as cooling system described in any one of claims 1 to 6, which is characterized in that the inlet and the liquid outlet
Concentrated setting is on the external-connected port of the shell.
8. such as cooling system described in any one of claims 1 to 6, which is characterized in that the hydrojet cavity is cyclic structure.
9. such as cooling system described in any one of claims 1 to 6, which is characterized in that the quantity of the spray hole be it is multiple,
Each spray hole is corresponding with the winding space of the stator core.
10. a kind of motor, including stator core and cooling system, which is characterized in that the cooling system be as claim 1 to
Cooling system described in any one of 9.
11. motor as claimed in claim 10, which is characterized in that the motor is motor in axial magnetic field.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910031452.9A CN109450174A (en) | 2019-01-14 | 2019-01-14 | A kind of cooling system and motor |
| EP19910377.1A EP3913777A4 (en) | 2019-01-14 | 2019-12-27 | Cooling system, stator assembly, and axial magnetic field motor |
| PCT/CN2019/129106 WO2020147551A1 (en) | 2019-01-14 | 2019-12-27 | Cooling system, stator assembly, and axial magnetic field motor |
| US17/422,424 US11942828B2 (en) | 2019-01-14 | 2019-12-27 | Cooling system, stator assembly, and axial magnetic field motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910031452.9A CN109450174A (en) | 2019-01-14 | 2019-01-14 | A kind of cooling system and motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109450174A true CN109450174A (en) | 2019-03-08 |
Family
ID=65544148
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910031452.9A Pending CN109450174A (en) | 2019-01-14 | 2019-01-14 | A kind of cooling system and motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109450174A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020147551A1 (en) * | 2019-01-14 | 2020-07-23 | 上海盘毂动力科技股份有限公司 | Cooling system, stator assembly, and axial magnetic field motor |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090230788A1 (en) * | 2005-10-11 | 2009-09-17 | Honda Motor Co., Ltd. | Electric Motor |
| CN102396134A (en) * | 2009-02-13 | 2012-03-28 | Isis创新有限公司 | Electric machine - cooling |
| CN105576927A (en) * | 2016-03-09 | 2016-05-11 | 刘霄 | Stator oil-immersion heat dissipation and rotor built-in type disc-type motor |
| JP2016093007A (en) * | 2014-11-06 | 2016-05-23 | 株式会社神戸製鋼所 | Axial gap brushless motor |
| JP2016163373A (en) * | 2015-02-26 | 2016-09-05 | 株式会社日立製作所 | Axial gap motor |
| CN207234586U (en) * | 2017-08-24 | 2018-04-13 | 长城汽车股份有限公司 | Motor and vehicle |
| CN109462311A (en) * | 2019-01-14 | 2019-03-12 | 上海盘毂动力科技股份有限公司 | A kind of cooling system and motor |
| CN209659094U (en) * | 2019-01-14 | 2019-11-19 | 上海盘毂动力科技股份有限公司 | A kind of cooling system and motor |
| CN209659093U (en) * | 2019-01-14 | 2019-11-19 | 上海盘毂动力科技股份有限公司 | A kind of cooling system and motor |
-
2019
- 2019-01-14 CN CN201910031452.9A patent/CN109450174A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090230788A1 (en) * | 2005-10-11 | 2009-09-17 | Honda Motor Co., Ltd. | Electric Motor |
| CN102396134A (en) * | 2009-02-13 | 2012-03-28 | Isis创新有限公司 | Electric machine - cooling |
| JP2016093007A (en) * | 2014-11-06 | 2016-05-23 | 株式会社神戸製鋼所 | Axial gap brushless motor |
| JP2016163373A (en) * | 2015-02-26 | 2016-09-05 | 株式会社日立製作所 | Axial gap motor |
| CN105576927A (en) * | 2016-03-09 | 2016-05-11 | 刘霄 | Stator oil-immersion heat dissipation and rotor built-in type disc-type motor |
| CN207234586U (en) * | 2017-08-24 | 2018-04-13 | 长城汽车股份有限公司 | Motor and vehicle |
| CN109462311A (en) * | 2019-01-14 | 2019-03-12 | 上海盘毂动力科技股份有限公司 | A kind of cooling system and motor |
| CN209659094U (en) * | 2019-01-14 | 2019-11-19 | 上海盘毂动力科技股份有限公司 | A kind of cooling system and motor |
| CN209659093U (en) * | 2019-01-14 | 2019-11-19 | 上海盘毂动力科技股份有限公司 | A kind of cooling system and motor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020147551A1 (en) * | 2019-01-14 | 2020-07-23 | 上海盘毂动力科技股份有限公司 | Cooling system, stator assembly, and axial magnetic field motor |
| US11942828B2 (en) | 2019-01-14 | 2024-03-26 | Shanghai Pangood Power Technology | Cooling system, stator assembly, and axial magnetic field motor |
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