CN113991916A - Motor casing, motor, air compressor machine system and domestic appliance - Google Patents
Motor casing, motor, air compressor machine system and domestic appliance Download PDFInfo
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- CN113991916A CN113991916A CN202111305164.1A CN202111305164A CN113991916A CN 113991916 A CN113991916 A CN 113991916A CN 202111305164 A CN202111305164 A CN 202111305164A CN 113991916 A CN113991916 A CN 113991916A
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- 239000007788 liquid Substances 0.000 claims abstract description 167
- 239000000110 cooling liquid Substances 0.000 claims abstract description 29
- 230000002093 peripheral effect Effects 0.000 claims abstract description 16
- 239000002826 coolant Substances 0.000 claims description 17
- 238000007789 sealing Methods 0.000 claims description 11
- 238000003466 welding Methods 0.000 claims description 7
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 230000017525 heat dissipation Effects 0.000 abstract description 14
- 238000009826 distribution Methods 0.000 abstract description 6
- 238000001816 cooling Methods 0.000 description 22
- 230000000694 effects Effects 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000009413 insulation Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000001174 ascending effect Effects 0.000 description 2
- 230000004323 axial length Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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Classifications
-
- 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
-
- 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
- H02K5/203—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium specially adapted for liquids, e.g. cooling jackets
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
The invention provides a motor shell, a motor, an air compressor system and a household appliance, wherein the peripheral wall of the motor shell is provided with an inner liquid inlet groove, at least one inner flow groove, an inner liquid outlet groove, an outer liquid inlet groove, at least one outer flow groove and an outer liquid outlet groove which extend in the axial direction, the inner liquid inlet groove is provided with an inner liquid inlet, the inner liquid outlet groove is provided with an inner liquid outlet, the inner liquid inlet groove, the inner liquid outlet groove and the inner liquid outlet groove are sequentially communicated and uniformly distributed in the circumferential direction of the motor shell to form an inner layer flow passage, the outer liquid inlet groove is provided with an outer liquid inlet, the outer liquid outlet groove is provided with an outer liquid outlet, the outer liquid inlet groove, the outer flow groove and the outer liquid outlet groove are sequentially communicated and uniformly distributed in the circumferential direction of the motor shell to form an outer layer flow passage, the outer layer flow passage is positioned at the outer side of the inner layer flow passage in the radial direction of the motor shell, and the temperature of first cooling liquid in the inner layer flow passage is higher than that of the second cooling liquid in the outer layer flow passage. The motor shell has the advantages of strong heat dissipation capability, high heat dissipation efficiency and uniform temperature distribution.
Description
Technical Field
The invention relates to the technical field of motors, in particular to a motor shell, a motor with the motor shell, an air compressor system with the motor and a household appliance.
Background
The air compressor system has higher requirement on the cooling effect of the motor of the air compressor system, and the heat dissipation capacity of the motor directly influences the operation efficiency of the air compressor system. The press system is used as a universal power source device, so that once the operation efficiency is reduced, the power consumption is huge, and the use cost is greatly increased.
In order to improve the cooling effect, the existing motor changes the shell into a liquid cooling shell, the liquid cooling shell is provided with an inner cooling runner and an outer cooling runner which are mutually communicated, and cooling liquid which circulates for a circle along the inner cooling runner enters the outer cooling runner to be circulated for a circle and then is discharged out of the motor. This liquid cooling casing increases heat radiating area through the parallelly connected cooling runner of ectonexine, but the coolant liquid has exchanged the heat and has risen the temperature at inlayer cooling runner circulation a week in-process, the coolant liquid after the intensification reenters outer cooling runner and carries out a week circulation, then the temperature of the coolant liquid of outer cooling runner is higher than the temperature of the coolant liquid of inlayer cooling runner, because be synchronous cycle coolant liquid in inlayer cooling runner and the outer cooling runner, the cryogenic cooling liquid of inlayer cooling runner still cools off the intensification coolant liquid of inlayer cooling runner when to casing internal cooling, thereby influenced the cooling effect to the casing inside, lead to the heat-sinking capability and the radiating efficiency of motor not good.
Disclosure of Invention
In order to achieve the first object of the present invention, the present invention provides a motor casing with strong heat dissipation capability, high heat dissipation efficiency, uniform temperature distribution, simple structure and low manufacturing cost.
In order to achieve the second object of the present invention, the present invention provides a motor having the above motor housing.
In order to achieve the third object of the present invention, the present invention provides an air compressor system having the above motor.
In order to achieve the fourth object of the present invention, the present invention provides a home appliance having the above motor.
In order to achieve the first object of the present invention, the present invention provides a motor casing, wherein the peripheral wall of the motor casing is provided with an inner liquid inlet tank, at least one inner flow tank, an inner liquid outlet tank, an outer liquid inlet tank, at least one outer flow tank and an outer liquid outlet tank, the inner liquid inlet tank, the inner flow tank, the inner liquid outlet tank, the outer liquid inlet tank, the outer flow tank and the outer liquid outlet tank all extend in the axial direction of the motor casing, the inner liquid inlet tank is provided with an inner liquid inlet, the inner liquid outlet tank is provided with an inner liquid outlet, the inner liquid inlet tank, the inner flow tank and the inner liquid outlet tank are sequentially communicated and uniformly distributed in the circumferential direction of the motor casing to form an inner layer flow channel, the outer liquid inlet tank is provided with an outer liquid inlet, the outer liquid outlet tank is provided with an outer liquid outlet, the outer liquid inlet tank, the outer flow tank and the outer liquid outlet tank are sequentially communicated and uniformly distributed in the circumferential direction of the motor casing to form an outer layer flow channel, and the outer layer flow channel is positioned outside the inner layer flow channel in the radial direction of the motor casing, the temperature of the first cooling liquid in the inner layer flow passage is higher than that of the second cooling liquid in the outer layer flow passage.
It can be seen from above-mentioned scheme that the inlayer runner inner loop of motor casing has first coolant liquid, first coolant liquid passes through interior inlet and enters interior feed liquor inslot promptly, later including feed liquor inslot, interior flow cell and interior liquid groove in proper order circulate a week, later discharge from interior liquid outlet, the outer runner inner loop of motor casing has the second coolant liquid simultaneously, the second coolant liquid passes through outer inlet and gets into outer feed liquor inslot promptly, later at outer feed liquor groove, outflow groove and the cistern of going out circulate a week in proper order, later discharge from the liquid outlet of going out. Because the heat source generated when the motor works is generated from the inside of the shell and is sequentially and radially transmitted outwards, the outer layer flow passage of the invention is positioned at the outer side of the inner layer flow passage in the radial direction of the motor shell, and the temperature of the first cooling liquid of the inner layer flow passage is higher than that of the second cooling liquid of the outer layer flow passage, so that the inner layer flow passage and the outer layer flow passage of the shell have temperature difference, the first cooling liquid in the inner layer flow passage takes away the heat in the shell, and the second cooling liquid in the outer layer flow passage further takes away the heat in the shell and the first cooling liquid, thereby the inner and outer layer flow channels can effectively take away more heat, the heat dissipation capability is strong, the heat dissipation efficiency is high, the temperature distribution is more uniform, the thermal deformation of the shell is more uniform, the cooling effect is good, and then improve motor heat-sinking capability for the motor temperature distributes evenly, avoids certain position local overheat of motor, the phenomenon that appears insulation damage. In addition, the motor shell has a simple structure, is convenient for modularization, serialization and standardized production, and is beneficial to reducing the manufacturing cost and improving the quality of products. In addition, the cooling liquid is introduced into the inner and outer flow channels of the shell to dissipate heat, and the sound insulation and noise reduction effects are achieved.
The further scheme is that the inner liquid inlet groove, the inner flow groove, the inner liquid outlet groove, the outer liquid inlet groove, the outer flow groove and the outer liquid outlet groove are distributed in a staggered mode in the circumferential direction of the motor shell.
In a further scheme, the temperature difference between the first cooling liquid and the second cooling liquid is more than 10 ℃.
The further proposal is that the inner liquid inlet is arranged by penetrating through the peripheral wall of the motor shell; and/or the inner liquid outlet is arranged through the peripheral wall of the motor shell.
The further proposal is that the distance between the inner liquid inlet and the first end surface of the motor shell in the axial direction is a first multiple of the outer diameter of the motor shell, and the first multiple is less than 1; and/or the distance between the inner liquid outlet and the first end surface is the second multiple of the outer diameter of the motor shell, and the second multiple is less than 1.
Further, the first multiple is 0.2, and/or the second multiple is 0.2.
The further proposal is that the external liquid inlet is arranged by penetrating through the peripheral wall of the motor shell; and/or the liquid outlet is arranged through the peripheral wall of the motor shell.
The distance between the external liquid inlet and the second end face of the motor shell in the axial direction is a third multiple of the outer diameter of the motor shell, and the third multiple is smaller than 1; and/or the distance between the liquid outlet and the second end surface is a fourth multiple of the outer diameter of the motor shell, and the fourth multiple is smaller than 1.
Further, the third multiple is 0.2, and/or the fourth multiple is 0.2.
Further, the length of the motor shell in the axial direction is LnThe outer diameter of the motor shell is D, and L is more than or equal to 0.5Dn≤3D。
The further proposal is that the section of at least one inner groove of the inner liquid inlet groove, the inner flow groove and the inner liquid outlet groove in the radial direction of the motor shell is arranged in one of fan shape, trapezoid shape, ellipse shape, circle shape and triangle shape; and/or the cross section of at least one outer tank in the outer liquid inlet tank, the outer flow tank and the outer liquid outlet tank in the radial direction of the motor shell is in one of fan shape, trapezoid shape, oval shape, circular shape and triangle shape.
The further proposal is that at least one inner groove of the inner liquid inlet groove, the inner flow groove and the inner liquid outlet groove extends in an arc shape in the circumferential direction of the motor shell; and/or at least one outer tank in the outer liquid inlet tank, the outer flow tank and the outer liquid outlet tank extends in an arc shape in the circumferential direction of the motor shell.
The further proposal is that the central angle of the inner groove corresponding to the axle center of the motor shell is theta, theta is more than or equal to 12 degrees and less than or equal to 36 degrees; and/or the central angle of the outer groove corresponding to the axle center of the motor shell is beta, wherein beta is more than or equal to 12 degrees and less than or equal to 36 degrees.
The motor shell is provided with a plurality of first grooves on a first end face in the axial direction, and the inner liquid inlet groove, the inner flow groove and the inner liquid outlet groove are communicated in sequence through the plurality of first grooves; and/or a plurality of second grooves are formed in the second end face of the motor shell in the axial direction, and the outer liquid inlet groove, the outer liquid groove and the outer liquid outlet groove are communicated in sequence through the plurality of second grooves.
The opening end of each first groove, which is far away from the second end face of the motor shell, is provided with a first sealing element; and/or a second sealing member is arranged at the opening end of each second groove, which is far away from the first end surface of the motor shell.
It is further provided that the first sealing element is formed by welding and/or that the second sealing element is formed by welding.
In order to achieve the second object of the present invention, the present invention provides a motor, which includes a rotor, a stator, and a casing, where the rotor and the stator are respectively disposed inside the casing, and the casing is the above-mentioned motor casing.
In order to achieve the third object of the present invention, the present invention provides an air compressor system including the above-mentioned motor.
In order to achieve the fourth object of the present invention, the present invention provides a household appliance comprising the above-mentioned motor.
Drawings
Fig. 1 is a cross-sectional view of an embodiment of the motor of the present invention.
Fig. 2 is a sectional view of a housing in an embodiment of a motor of the present invention in an axial direction.
Fig. 3 is a cross-sectional view of a housing in a radial direction in an embodiment of the motor of the present invention.
Fig. 4 is a structural view of a housing in an embodiment of the motor of the present invention.
The invention is further explained with reference to the drawings and the embodiments.
Detailed Description
Referring to fig. 1, the motor of the present embodiment includes a rotor 1, a stator 2, and a casing 3, where the rotor 1 and the stator 2 are respectively disposed inside the casing 3, and two axial ends of the casing 3 are respectively covered with a front end cover 4 and a rear end cover 5.
Referring to fig. 2 to 4, the peripheral wall of the motor casing 3 of the present embodiment is provided with an inner liquid inlet groove (not labeled), a plurality of inner liquid grooves (not labeled), an inner liquid outlet groove (not labeled), an outer liquid inlet groove (not labeled), a plurality of outer liquid grooves (not labeled), and an outer liquid outlet groove (not labeled), and the inner liquid inlet groove, each inner liquid groove, the inner liquid outlet groove, the outer liquid inlet groove, each outer liquid groove, and the outer liquid outlet groove all extend in the axial direction of the motor casing 3. Wherein, interior feed liquor groove is provided with interior inlet 311, and interior drain tank is provided with interior liquid outlet 312, and interior feed liquor groove, a plurality of interior launders and interior drain tank are linked together in proper order and evenly distributed forms inner flow channel 31 in motor housing 3's circumference. And, outer feed liquor groove is provided with outer inlet 321, goes out the cistern and is provided with going out liquid mouth 322, and outer feed liquor groove, a plurality of outer launders and going out the cistern are linked together in proper order and evenly distributed forms outer runner 32 in the circumference of motor housing 3, and outer runner 32 is located the outside of inlayer runner 31 in the footpath of motor housing 3. In addition, the inner liquid inlet groove, the plurality of inner flow grooves, the inner liquid outlet groove, the outer liquid inlet groove, the plurality of outer flow grooves and the outer liquid outlet groove are distributed in a staggered manner in the circumferential direction of the motor housing 3, and the temperature of the first cooling liquid in the inner layer flow passage 31 is higher than that of the second cooling liquid in the outer layer flow passage 32.
When the motor works, the first cooling liquid circulates in the inner layer flow channel 31 of the motor shell 3, namely the first cooling liquid enters the inner liquid inlet groove through the inner liquid inlet 311, then circulates for a circle in sequence in the inner liquid inlet groove, the plurality of inner flow grooves and the inner liquid outlet groove, and then is discharged from the inner liquid outlet 312, meanwhile, the second cooling liquid circulates in the outer layer flow channel 32 of the motor shell 3, namely the second cooling liquid enters the outer liquid inlet groove through the outer liquid inlet 321, then circulates for a circle in sequence in the outer liquid inlet groove, the plurality of outer flow grooves and the outer liquid outlet groove, and then is discharged from the outer liquid outlet 322. Because the heat source that the motor during operation produced produces from the inside of casing 3, radial outward transmission in proper order, outer runner 32 of this embodiment radially lies in the outside of inlayer runner 31 in motor casing 3, and interior feed liquor groove, a plurality of interior launders, interior drain pan, outer feed liquor groove, a plurality of outer launders and go out the cistern are in the crisscross distribution in motor casing 3's circumference to increase heat radiating area, the temperature distribution is more even, and casing 3 heat altered shape is also more even, and the cooling effect is good. And, the temperature of the first coolant of this embodiment inlayer runner 31 is higher than the temperature of the second coolant of outer runner 32, make the inlayer and outer runner 32 of casing 3 have the temperature difference, then the first coolant of inlayer runner 31 takes away the inside heat of casing 3 simultaneously, the heat of the inside of casing 3 and first coolant is further taken away to the second coolant of outer runner 32, thereby more heats can be taken away effectively to inlayer and outer runner 32, the heat-sinking capability is strong, the radiating efficiency is high, and then improve the motor heat-sinking capability, make the motor temperature distribute evenly, avoid the local overheat of a certain position of motor, the phenomenon of insulation damage appears. In addition, the motor casing 3 of the embodiment has a simple structure, is convenient for modularization, serialization and standardized production, and is beneficial to reducing the manufacturing cost and improving the quality of products. In addition, in the present embodiment, the cooling liquid is introduced into the inner and outer flow channels 32 of the housing 3 for heat dissipation, and the sound insulation and noise reduction effects are also achieved.
In order to further improve the heat dissipation capability and the heat dissipation efficiency, in this embodiment, the temperature difference between the first cooling liquid in the inner layer flow passage 31 and the second cooling liquid in the outer layer flow passage 32 is greater than 10 ℃, so as to reduce the temperature difference at different positions of the casing 3, make the temperature field distribution of the casing 3 uniform, improve the heat dissipation capability of the casing 3, reduce the temperature rise of the casing 3, and further improve the motor efficiency.
In this embodiment, the inner liquid inlet 311 is disposed through the peripheral wall of the motor housing 3, and the inner liquid outlet 312 is disposed through the peripheral wall of the motor housing 3. In order to ensure the feasibility of the processing process, the distance between the liquid inlet 311 and the first end surface 35 of the motor housing 3 in the axial direction in this embodiment is a first multiple of the outer diameter D of the motor housing 3, the first multiple is less than 1, preferably, the first multiple is 0.2, and the distance between the liquid outlet 312 and the first end surface 35 of the motor housing 3 in this embodiment is a second multiple of the outer diameter D of the motor housing 3, the second multiple is less than 1, preferably, the second multiple is 0.2.
The external liquid inlet 321 of the present embodiment is disposed through the peripheral wall of the motor housing 3, and the external liquid outlet 322 is disposed through the peripheral wall of the motor housing 3. In order to ensure the feasibility of the machining process, the distance between the external liquid inlet 321 and the second end surface 36 of the motor housing 3 in the axial direction is a third multiple of the outer diameter D of the motor housing 3, the third multiple is smaller than 1, preferably, the third multiple is 0.2, and the distance between the external liquid outlet 322 and the second end surface 36 of the motor housing 3 is a fourth multiple of the outer diameter D of the motor housing 3, the fourth multiple is smaller than 1, preferably, the fourth multiple is 0.2.
The motor housing 3 has a length L in the axial directionnCan be adjusted according to the use requirement, preferably, the embodiment is 0.5D ≦ LnLess than or equal to 3D, wherein the outer diameter of the motor shell 3 is D. When L isn<0.5D, the axial length L of the housing 3nThe short length is not beneficial to the welding of the axial end part of the shell 3, so that the manufacturing process is complicated, and the process cost of the shell 3 is increased; when L isn>In 3D, the axial length L of the housing 3nThe cooling liquid flows through the inner and outer flow passages 32 of the casing 3 in an excessively long path, which is disadvantageous to heat transfer.
The motor shell 3 can be formed at one time through an extrusion or stretching process, the outline of the motor shell 3 can be adjusted according to a die, the motor shell is not limited to be round, and trimming chamfers and other irregular outlines can exist. At least one inner groove of the inner liquid inlet groove, the inner liquid groove and the inner liquid outlet groove is arranged in one of a fan shape, a trapezoid shape, an oval shape, a round shape and a triangle shape in the radial direction of the motor shell 3, and at least one outer groove of the outer liquid inlet groove, the outer liquid groove and the outer liquid groove is arranged in one of a fan shape, a trapezoid shape, an oval shape, a round shape and a triangle shape in the radial direction of the motor shell 3.
Specifically, in this embodiment, at least one inner slot of the inner liquid inlet slot, the inner liquid slot and the inner liquid outlet slot extends in an arc shape in the circumferential direction of the motor housing 3, and at least one outer slot of the outer liquid inlet slot, the outer liquid slot and the outer liquid outlet slot extends in an arc shape in the circumferential direction of the motor housing 3. Preferably, the central angle of the inner slot corresponding to the axis of the motor housing 3 is theta, theta is greater than or equal to 12 degrees and is less than or equal to 36 degrees, the central angle of the outer slot corresponding to the axis of the motor housing 3 is beta, beta is greater than or equal to 12 degrees and is less than or equal to 36 degrees, so that different positions of the housing 3 in the circumferential direction can be maximally contacted with the cooling liquid, the heat dissipation area is further increased, and the heat dissipation capacity and the heat dissipation efficiency are improved.
In addition, a plurality of first grooves 33 have been seted up to motor housing 3 in this embodiment at axial ascending first terminal surface 35, and a plurality of first grooves 33 make interior feed liquor groove, a plurality of interior launders and interior drain tank communicate with each other in proper order, and a plurality of second grooves 34 have been seted up to motor housing 3 at axial ascending second terminal surface 36, and a plurality of second grooves 34 make outer feed liquor groove, a plurality of outer launders and go out the cistern and communicate with each other in proper order. In order to improve the sealing performance of the two axial ends of the motor housing 3, the opening end of each first groove 33 away from the second end face 36 of the motor housing 3 is provided with a first sealing member 37, and the opening end of each second groove 34 away from the first end face 35 of the motor housing 3 is provided with a second sealing member 38. In the embodiment, the first sealing member 37 is formed by friction welding, and the second sealing member 38 is formed by friction welding, so that the consistency of product quality is ensured.
The motor is suitable for an air compressor system, when the air compressor system works, the inner-layer flow channel 31 in the shell 3 of the motor shares cooling liquid with the air compressor system, and the outer-layer flow channel 32 in the shell 3 is filled with independent cooling liquid with lower temperature, so that the motor can be better radiated.
The motor of the invention can also be applied to household appliances, electric tools and mechanical equipment, wherein the household appliances comprise air conditioners, washing machines, electric fans, refrigerators, recorders, video players, dust collectors, cameras, hair dryers, electric shavers and the like, the electric tools comprise tools for drilling, polishing, grooving, cutting, reaming and the like, and the mechanical equipment comprises various small machine tools, small machines, medical instruments, electronic instruments and the like.
The above embodiments are merely preferred examples of the present invention, and not intended to limit the scope of the invention, so that equivalent changes or modifications made based on the structure, characteristics and principles of the invention as claimed should be included in the claims of the present invention.
Claims (19)
1. The motor comprises a motor shell and is characterized in that an inner liquid inlet groove, at least one inner flow groove, an inner liquid outlet groove, an outer liquid inlet groove, at least one outer flow groove and an outer liquid outlet groove are arranged on the peripheral wall of the motor shell, and the inner liquid inlet groove, the inner flow groove, the inner liquid outlet groove, the outer liquid inlet groove, the outer flow groove and the outer liquid outlet groove all extend in the axial direction of the motor shell;
the inner liquid inlet groove is provided with an inner liquid inlet, the inner liquid outlet groove is provided with an inner liquid outlet, and the inner liquid inlet groove, the inner flow groove and the inner liquid outlet groove are sequentially communicated and uniformly distributed in the circumferential direction of the motor shell to form an inner-layer flow channel;
outer feed liquor groove is provided with outer inlet, it is provided with out the liquid mouth to go out the cistern, outer feed liquor groove outer chute with go out the cistern and be linked together in proper order and be in evenly distributed forms outer runner in the circumference of motor housing, just outer runner is in motor housing's footpath upwards is located the outside of inlayer runner, the temperature of the first coolant liquid in the inlayer runner is higher than the temperature of the second coolant liquid in the outer runner.
2. The motor housing of claim 1, wherein:
the inner liquid inlet groove, the inner flow groove, the inner liquid outlet groove, the outer liquid inlet groove, the outer flow groove and the outer liquid outlet groove are distributed in a staggered mode in the circumferential direction of the motor shell.
3. The motor housing of claim 1, wherein:
the temperature difference between the first cooling liquid and the second cooling liquid is more than 10 ℃.
4. The motor housing of claim 1, wherein:
the inner liquid inlet is arranged by penetrating through the peripheral wall of the motor shell;
and/or the inner liquid outlet penetrates through the peripheral wall of the motor shell.
5. The motor housing of claim 4, wherein:
the distance between the inner liquid inlet and the first end face of the motor shell in the axial direction is a first multiple of the outer diameter of the motor shell, and the first multiple is smaller than 1;
and/or the distance between the inner liquid outlet and the first end surface is a second multiple of the outer diameter of the motor shell, and the second multiple is smaller than 1.
6. The motor housing of claim 5, wherein:
the first multiple is 0.2, and/or the second multiple is 0.2.
7. The motor housing of claim 1, wherein:
the external liquid inlet is arranged by penetrating through the peripheral wall of the motor shell;
and/or the liquid outlet penetrates through the peripheral wall of the motor shell.
8. The motor housing of claim 7, wherein:
the distance between the external liquid inlet and the second end face of the motor shell in the axial direction is a third multiple of the outer diameter of the motor shell, and the third multiple is smaller than 1;
and/or the distance between the liquid outlet and the second end surface is a fourth multiple of the outer diameter of the motor shell, and the fourth multiple is smaller than 1.
9. The motor housing of claim 8, wherein:
the third multiple is 0.2, and/or the fourth multiple is 0.2.
10. The motor housing of claim 1, wherein:
the length of the motor shell in the axial direction is LnThe outer diameter of the motor shell is D, and L is not less than 0.5Dn≤3D。
11. The motor housing of claim 1, wherein:
at least one inner groove of the inner liquid inlet groove, the inner flow groove and the inner liquid outlet groove is arranged in one of a sector shape, a trapezoid shape, an oval shape, a round shape and a triangle shape in the radial direction of the motor shell;
and/or the cross section of at least one outer tank in the outer liquid inlet tank, the outer flow tank and the outer liquid outlet tank in the radial direction of the motor shell is in one of fan shape, trapezoid shape, oval shape, round shape and triangle shape.
12. The motor housing of claim 1, wherein:
at least one inner groove of the inner liquid inlet groove, the inner flow groove and the inner liquid outlet groove extends in an arc shape in the circumferential direction of the motor shell;
and/or at least one outer tank in the outer liquid inlet tank, the outer flow tank and the outer liquid outlet tank extends in an arc shape in the circumferential direction of the motor shell.
13. The motor housing of claim 12, wherein:
the central angle of the inner groove corresponding to the axis of the motor shell is theta, and theta is more than or equal to 12 degrees and less than or equal to 36 degrees;
and/or the central angle of the outer groove corresponding to the axis of the motor shell is beta, wherein beta is more than or equal to 12 degrees and less than or equal to 36 degrees.
14. The motor casing according to any one of claims 1 to 13, wherein:
a plurality of first grooves are formed in the first end face of the motor shell in the axial direction, and the inner liquid inlet groove, the inner flow groove and the inner liquid outlet groove are sequentially communicated through the plurality of first grooves;
and/or a plurality of second grooves are formed in the second end face of the motor shell in the axial direction, and the second grooves enable the outer liquid inlet groove, the outer flow groove and the outer liquid outlet groove to be communicated in sequence.
15. The motor housing of claim 14, wherein:
a first sealing piece is arranged at the opening end of each first groove, which is far away from the second end face of the motor shell;
and/or a second sealing member is arranged at the opening end of each second groove, which is far away from the first end surface of the motor shell.
16. The motor housing of claim 15, wherein:
the first seal is formed by welding, and/or the second seal is formed by welding.
17. The motor, including rotor, stator and casing, the rotor with the stator sets up respectively the inside of casing, its characterized in that:
the machine housing is a machine housing according to any one of claims 1 to 16.
18. An air compressor system, characterized by comprising the motor of claim 17.
19. Household appliance, characterized in that it comprises an electric machine according to claim 17.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111305164.1A CN113991916B (en) | 2021-11-04 | 2021-11-04 | Motor shell, motor, air compressor system and household appliance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111305164.1A CN113991916B (en) | 2021-11-04 | 2021-11-04 | Motor shell, motor, air compressor system and household appliance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113991916A true CN113991916A (en) | 2022-01-28 |
| CN113991916B CN113991916B (en) | 2022-09-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111305164.1A Active CN113991916B (en) | 2021-11-04 | 2021-11-04 | Motor shell, motor, air compressor system and household appliance |
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