CN115425795B - Double-channel heat dissipation motor shell structure - Google Patents
Double-channel heat dissipation motor shell structure Download PDFInfo
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- CN115425795B CN115425795B CN202211366457.5A CN202211366457A CN115425795B CN 115425795 B CN115425795 B CN 115425795B CN 202211366457 A CN202211366457 A CN 202211366457A CN 115425795 B CN115425795 B CN 115425795B
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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
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/06—Cast metal casings
-
- 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
- H02K5/10—Casings or enclosures characterised by the shape, form or construction thereof with arrangements for protection from ingress, e.g. water or fingers
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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
- 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
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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
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- 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 Frames (AREA)
Abstract
The invention discloses a double-channel heat dissipation motor shell structure, and relates to the field of motors. The key point of the technical scheme is that the device comprises a shell, wherein two ends of the shell are respectively provided with an end cover; an inner-layer cooling channel and an outer-layer cooling channel are respectively arranged in the shell and respectively comprise sub-channels extending from one end of the shell to the other end; the sub-channel comprises an inclined channel, and the extending direction of the inclined channel is obliquely arranged relative to the axial direction of the machine shell; the sub-channel is integrally formed in the casing. The invention adopts the inclined channel to improve the strength of the casing, and the casing is formed by casting, thereby simplifying the production process, improving the production efficiency and reducing the production cost.
Description
Technical Field
The invention relates to the field of motors, in particular to a double-channel radiating motor shell structure.
Background
With the development of high-power and high-density motors, the heat generated by the iron core and the winding per unit volume is increasing, so that water cooling, oil cooling or combined cooling of water and oil becomes a main heat dissipation mode.
The cooling channels are typically arranged in the motor housing and mainly comprise a spiral type and a straight groove type. The spiral cooling channel has a complex structure, the inner ring and the outer ring of the casing need to be processed in a split manner and then welded, the production process is complex, and the outer ring of the casing cannot bear large radial force. For example, chinese patent publication No. CN114793041A discloses a water-oil combined cooling speed reduction motor base, which includes a casing, a front end cover and a rear end cover, wherein a double-layer spiral flow passage is provided on an inner side wall of the casing, an outer side of the double-layer spiral flow passage is a water passage, and an inner layer of the double-layer spiral flow passage is an oil passage, that is, the spiral flow passage is spirally arranged along a circumferential direction.
In addition, the existing chinese patent publication No. CN 1112458146A discloses a new energy automobile and a motor thereof, wherein the motor includes a housing, the housing has a water channel for cooling water to flow through and an oil passage for cooling oil to flow through, the water channel is folded back and forth along the axial direction of the housing, and the oil passage is along the axial direction of the housing; the machine shell comprises two cylinders which are arranged in a sleeved mode and have different inner diameters, the water channel is a channel which is formed by isolating first blocking ribs for connecting the two cylinders and bent back and forth, and the water channel is arranged along the circumferential direction of the machine shell; the oil duct is a channel which is arranged between the two cylinders and is axially arranged, and the oil duct is separated from the water channel through a second blocking rib.
Although the water channel in the patent goes back and forth along the axial direction of the casing, the casing is still subjected to split type welding processing, so that the production process is complex, and the radial bearing capacity of the casing is poor.
The straight-groove cooling channel structure can integrally cast the machine shell, but the heat dissipation is not uniform, and the heat dissipation effect is not good. For example, the existing chinese patent with publication number CN212367066U discloses a dual cooling channel motor, which includes a casing, and an oil passage and a water passage located on the same layer are provided in a shell layer of the casing; the oil passages comprise a first oil passage, a first oil inlet and a first oil outlet, the first oil inlet and the first oil outlet are arranged in the first oil passage, the first oil passage comprises a plurality of axial oil passages, and the plurality of axial oil passages are communicated through transition oil passages; the water channels are distributed in the shell layer at the lower half part of the main shell in an axial shape.
In the above patent, the water channel and the oil channel are arranged on the same layer surface in the shell layer of the machine shell, so that the size of the motor is reduced, but the heat dissipation area between water and oil is small, and the heat dissipation effect is still to be improved.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a double-channel heat-dissipation motor shell structure, the strength of the motor shell is improved by adopting an inclined channel, and the motor shell is formed by casting, so that the production process can be simplified, the production efficiency can be improved, and the production cost can be reduced.
In order to achieve the purpose, the invention provides the following technical scheme:
a double-channel heat-dissipation motor shell structure comprises a motor shell, wherein two ends of the motor shell are respectively provided with an end cover; an inner-layer cooling channel and an outer-layer cooling channel are respectively arranged in the shell and respectively comprise sub-channels extending from one end of the shell to the other end; the sub-channel comprises an inclined channel, and the extending direction of the inclined channel is obliquely arranged relative to the axial direction of the machine shell;
the sub-channel is integrally formed in the casing.
Further, the inclined channel extends from one end of the housing to the other end.
Further, the sub-channel further comprises a straight-groove channel communicated with the inclined channel, and the straight-groove channel extends along the axial direction of the machine shell.
Furthermore, the sub-channel comprises a first straight-groove channel, an inclined channel and a second straight-groove channel which are sequentially communicated along the axial direction.
Furthermore, the inner-layer cooling channel comprises a plurality of inner-layer sub-channels which are circumferentially arranged, an inner-layer reversing channel is connected between every two adjacent inner-layer sub-channels, and the inner-layer reversing channel is arranged on the end face of the machine shell; the two ends of the inner layer sub-channel are respectively provided with the inner layer reversing channels, and the two inner layer reversing channels are respectively positioned on the two sides of the inner layer sub-channel.
Further, the outer-layer cooling channel comprises a plurality of outer-layer sub-channels arranged along the circumferential direction, and an inner end face of the end cover is provided with an outer-layer reversing channel; and two adjacent outer-layer sub-channels are communicated through one outer-layer reversing channel.
Further, a sealing gasket is arranged between the shell and the end cover, the sealing gasket closes the end face openings of the inner-layer sub-channel and the inner-layer reversing channel, and a position yielding port communicated with the outer-layer sub-channel is formed in the sealing gasket.
Furthermore, interlayer fins are formed between the sub-channels of the inner-layer cooling channel and the sub-channels of the outer-layer cooling channel.
Further, the sub-channels of the inner layer cooling channel are arranged opposite to the sub-channels of the outer layer cooling channel in the radial direction.
Further, the inner cooling gallery includes an inner gallery inlet and an inner gallery outlet; the outer layer cooling channel comprises an outer layer channel outlet arranged at the inner layer channel inlet and an outer layer channel inlet arranged at the inner layer channel outlet.
In conclusion, the invention has the following beneficial effects:
1. the strength of the machine shell can be improved by adopting the inclined channel, so that the radial bearing capacity of the machine shell is improved, and the machine shell can be used as a structural member;
2. the double-channel heat dissipation structure formed by the inner-layer cooling channel and the outer-layer cooling channel is beneficial to improving the heat dissipation effect;
3. the casing is integrally formed by casting, so that the production process can be simplified, the production efficiency can be improved, the production cost can be reduced, and the strength of the casing can be improved;
4. the inner-layer sub-channel and the outer-layer sub-channel are oppositely arranged along the radial direction, so that the heat conduction contact area of the inner-layer cooling medium and the outer-layer cooling medium is favorably increased, and the heat dissipation effect is improved;
5. the outer-layer channel inlet is arranged at the inner-layer channel outlet, so that the temperature difference between the inlet and the outlet is reduced, and the inner-layer cooling medium and the outer-layer cooling medium can be recycled conveniently.
Drawings
Fig. 1 is a schematic structural diagram of a dual-channel heat dissipation motor housing structure according to an embodiment;
FIG. 2 is a first schematic structural diagram of the housing of the embodiment;
FIG. 3 is a second schematic view of the embodiment of the enclosure;
FIG. 4 is a third schematic view of the structure of the housing in the embodiment;
FIG. 5 is a fourth schematic view of the structure of the housing in the embodiment;
fig. 6 is a schematic structural view of the end cap in the embodiment.
In the figure: 1. a housing; 2. an end cap; 3. a gasket; 31. a let position port; 4. an inner layer cooling channel; 41. a first inner layer straight slot channel; 42. an inner inclined channel; 43. a second inner layer straight groove channel; 44. an inner layer reversing channel; 5. an outer layer cooling channel; 51. a first outer layer straight slot channel; 52. an outer layer inclined channel; 53. a second outer layer straight slot channel; 6. interlayer fins; 71. an inner layer channel inlet; 72. an inner layer channel outlet; 81. an outer layer channel outlet; 82. an outer layer channel inlet; 91. an outer reversing channel; 92. and an outer layer reversing passage port.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.
The embodiment is as follows:
a double-channel heat radiation motor shell structure is disclosed, referring to fig. 1 to 6, wherein two ends of a motor shell 1 are respectively provided with an end cover 2; an inner-layer cooling channel 4 and an outer-layer cooling channel 5 are respectively arranged in the machine shell 1, and the inner-layer cooling channel 4 and the outer-layer cooling channel 5 respectively comprise sub-channels extending from one end to the other end of the machine shell 1; the sub-channels comprise inclined channels, and the extending directions of the inclined channels are obliquely arranged relative to the axial direction of the machine shell 1; the sub-channel is integrally formed in the machine shell 1; because the inclined channel is arranged, the axial extension line of any point in the sub-channel in the embodiment passes through the solid part of the machine shell 1, so that the axial extension line is compared with the straight-groove channel extending along the axial direction; in the embodiment, the strength of the casing can be improved after the inclined channel is adopted, so that the radial bearing capacity of the casing is improved, and the casing can be used as a structural member; the casing adopting the straight-groove channel extending along the axial direction and the casing in the embodiment are respectively subjected to strength simulation, and the same conclusion can be obtained, namely the stress of the inclined channel part in the casing is smaller, and the strength of the casing adopting the inclined channel is improved; in the embodiment, the neutron channel is integrally formed in the casing 1, that is, the casing 1 is integrally formed by casting, so that the production process can be simplified, the production efficiency can be improved, the production cost can be reduced, and the strength of the casing can be improved; meanwhile, the double-channel heat dissipation structure formed by the inner-layer cooling channel 4 and the outer-layer cooling channel 5 is beneficial to improving the heat dissipation effect.
Referring to fig. 1 to 6, the sub-channel has an opening formed on the end surface of the housing, the circumferential two ends of the opening are respectively an end a and an end B, and the central angle of the positioning end a and the end B along the circumferential direction is a; the two axial ends of the inclined channel, which are opposite to the opening, are respectively a C end and a D end, and the central angle of the positioning C end and the positioning D end along the circumferential direction is b; in order to facilitate casting and drawing of the shell, the central angle a is greater than or equal to the central angle b; when only the axial length of the inclined channel is considered, the larger the ratio of the axial length of the inclined channel to the axial length of the casing is, the higher the casing strength is; therefore, when the axial length of the inclined channel is equal to that of the shell, namely the inclined channel can extend from one end of the shell to the other end of the shell, namely the inclined channel directly forms a sub-channel, and meanwhile, when the central angle a is equal to the central angle b, the casting and drawing of the shell can be ensured, and the strength of the shell can be highest; certainly, the strength of the machine shell can meet the design requirement when the machine shell is used as a structural part, so that the sub-channel also comprises a straight-groove channel communicated with the inclined channel, and the straight-groove channel extends along the axial direction of the machine shell; specifically, the neutron channel in this embodiment includes a first straight-groove channel, an inclined channel, and a second straight-groove channel that are sequentially communicated along the axial direction; namely, the straight-groove type channel and the inclined channel are combined for use, so that the strength of the machine shell can be increased, the production and the processing can be facilitated, and the production cost is reduced.
Referring to fig. 1 to 6, specifically, in the present embodiment, the inner cooling channel 4 includes a plurality of inner sub-channels arranged along the circumferential direction, an inner reversing channel 44 is connected between two adjacent inner sub-channels, and the inner reversing channel 44 is disposed on an end surface of the casing 1; the two ends of the inner layer sub-channel are respectively provided with an inner layer reversing channel 44, and the two inner layer reversing channels 44 are respectively positioned at the two sides of the inner layer sub-channel; the plurality of inner sub-channels cooperate with the plurality of inner commutating channels 44 such that the inner cooling channels 4 can form a circulation channel; specifically, the inner layer sub-channel in this embodiment includes a first inner layer straight-groove channel 41, an inner layer inclined channel 42, and a second inner layer straight-groove channel 43, which are sequentially arranged in the axial direction; inner layer reversing channels 44 are respectively arranged at two ends of the machine shell 1, namely, two adjacent first inner layer straight groove channels 41 are communicated through the inner layer reversing channels 44, and two adjacent second inner layer straight groove channels 43 are also communicated through the inner layer reversing channels 44; that is, the inner reversing channels 44 at one end of the casing 1 and the inner reversing channels 44 at the other end of the casing 1 are arranged in a staggered manner along the circumferential direction; of course, in other alternative embodiments, the inner reversing channel 44 may also be opened at the end face of the end cover 2, and is not limited herein.
Referring to fig. 1 to 6, specifically, in the present embodiment, the outer cooling channel 5 includes a plurality of outer sub-channels arranged along the circumferential direction, and an inner end surface of the end cover 2 is provided with an outer reversing channel 91; two adjacent outer-layer sub-channels are communicated through an outer-layer reversing channel 91; the inner end surfaces of the two end covers 2 are respectively provided with a plurality of outer layer reversing channels 91, and a plurality of outer layer sub-channels are matched with the plurality of outer layer reversing channels 91, so that the outer layer cooling channels 5 can form a circulating channel; specifically, in the present embodiment, the outer-layer sub-channel includes a first outer-layer straight-groove channel 51, an outer-layer inclined channel 52, and a second outer-layer straight-groove channel 53, which are sequentially arranged along the axial direction; the outer layer reversing channel 91 is formed in the end cover 2, and two outer layer reversing channel openings 92 which are arranged at intervals are formed in the end face of the end cover 2; that is, after entering from one of the outer layer reversing passage ports 92, the cooling medium passes through the outer layer reversing passage 91 and is discharged from the other outer layer reversing passage port 92; after the casing 1 is connected with the two end covers 2 at two ends of the casing, two adjacent first outer-layer straight-groove channels 51 are respectively communicated with two outer-layer reversing channel ports 92 of one outer-layer reversing channel 91, and two adjacent second outer-layer straight-groove channels 53 are respectively communicated with two outer-layer reversing channel ports 92 of one outer-layer reversing channel 91; the outer layer reversing channels 91 on one end cover 2 and the outer layer reversing channels 91 on the other end cover 2 are arranged in a staggered mode along the circumferential direction, and therefore a circulating channel is formed; of course, in other alternative embodiments, the outer diversion channel 91 may also be disposed on the end face of the casing 1, and is not limited herein. In this embodiment, set up inlayer switching-over passageway 44 in casing 1 terminal surface, set up skin switching-over passageway 91 in end cover 2 terminal surfaces, can conveniently produce and processing, simultaneously, be favorable to improving the structural strength of casing or end cover.
Referring to fig. 1 to 6, preferably, a sealing gasket 3 is arranged between the casing 1 and the end cover 2, the sealing gasket 3 closes the end surface openings of the inner layer sub-channel and the inner layer reversing channel 44, and a abdicating port 31 communicated with the outer layer sub-channel is formed on the sealing gasket 3; that is, in the present embodiment, the two gaskets 3 respectively close the end surface openings of the first inner layer straight groove channel 41 and the second inner layer straight groove channel 43, and simultaneously close the end surface opening of the inner layer reversing channel 44, so that the inner layer reversing channel 44 forms a circulation channel; that is, the gasket 3 in this embodiment not only can improve the sealing performance at the joint of the casing 1 and the end cover 2, but also is used for closing the opening formed by the inner-layer cooling channel 4 on the end face of the casing, so that the inner-layer cooling channel 4 forms a circulation channel; namely, the sealing gasket 3 adopted in the embodiment has the effects of simple structure and convenience in production and processing; of course, in other alternative embodiments, a separate seal may be used to form the opening of the inner cooling channel 4 in the end face of the casing, and is not limited herein.
Referring to fig. 1 to 6, in the present embodiment, an interlayer fin 6 is formed between the sub-channel of the inner-layer cooling channel 4 and the sub-channel of the outer-layer cooling channel 5; namely, interlayer fins 6 for heat exchange are formed between the inner layer sub-channel and the outer layer sub-channel; the thickness of the interlayer fins 6 is small, so that the heat conduction effect between the inner-layer cooling medium and the outer-layer cooling medium is improved, and the heat dissipation effect of the shell is improved; preferably, the sub-channels of the inner-layer cooling channel 4 and the sub-channels of the outer-layer cooling channel 5 are arranged oppositely in the radial direction in the embodiment; the inclined channel is utilized to improve the strength of the casing in the embodiment, so that the inner-layer sub-channel and the outer-layer sub-channel do not need to be staggered, and the inner-layer sub-channel and the outer-layer sub-channel are arranged oppositely along the radial direction in the embodiment, so that the heat conduction contact area of the inner-layer cooling medium and the outer-layer cooling medium is favorably improved, and the heat dissipation effect is improved.
Referring to fig. 1 to 6, specifically, the inner-layer cooling passage 4 includes an inner-layer passage inlet 71 and an inner-layer passage outlet 72; the outer-layer cooling passage 5 includes an outer-layer passage outlet 81 provided at the inner-layer passage inlet 71, and an outer-layer passage inlet 82 provided at the inner-layer passage outlet 72; the outer-layer channel inlet 82 is arranged at the inner-layer channel outlet 72, so that the temperature difference between the inlet and the outlet is reduced, and the inner-layer cooling medium and the outer-layer cooling medium can be recycled; preferably, in the present embodiment, the inner channel inlet 71 is disposed opposite to the inner channel outlet 72, the outer channel inlet 82 is disposed opposite to the outer channel outlet 81, and the outer channel inlet 82 is disposed opposite to the inner channel outlet 72 along the radial direction, so as to improve the heat dissipation effect; specifically, in the present embodiment, the inner-layer channel inlet 71 and the inner-layer channel outlet 72 are disposed on the inner side wall of the casing 1, the outer-layer channel outlet 81 and the outer-layer channel inlet 82 are disposed on the outer side wall of the casing 1, the cooling medium in the inner-layer cooling channel 4 is oil, and the cooling medium in the outer-layer cooling channel 5 is water; after the machine is installed, the oil pump enters high-temperature oil in the motor into the inner-layer cooling channel 4 from the inner-layer channel inlet 71 and then flows out from the inner-layer channel outlet 72; the high-temperature oil in the inner-layer cooling channel 4 transfers heat to the cooling water in the outer-layer cooling channel 5 through the interlayer fins 6, and the heat of the oil is taken away by utilizing water circulation, so that the heat dissipation effect on the motor is improved; of course, in other alternative embodiments, the inner layer cooling medium and the outer layer cooling medium may be selected and adjusted according to the needs, and are not limited herein.
Claims (7)
1. A double-channel heat-dissipation motor shell structure comprises a motor shell, wherein two ends of the motor shell are respectively provided with an end cover; be provided with inlayer cooling channel and skin cooling channel in the casing respectively, its characterized in that: the inner-layer cooling channel and the outer-layer cooling channel respectively comprise sub-channels extending from one end of the shell to the other end; the sub-channel comprises an inclined channel, and the extending direction of the inclined channel is obliquely arranged relative to the axial direction of the machine shell;
the sub-channel is integrally formed in the shell;
the inner-layer cooling channel comprises a plurality of inner-layer sub-channels which are arranged along the circumferential direction, an inner-layer reversing channel is connected between every two adjacent inner-layer sub-channels, and the inner-layer reversing channel is arranged on the end face of the machine shell; the two ends of the inner layer sub-channel are respectively provided with the inner layer reversing channel, and the two inner layer reversing channels are respectively positioned on the two sides of the inner layer sub-channel;
the outer-layer cooling channel comprises a plurality of outer-layer sub-channels which are arranged along the circumferential direction, and an inner end face of the end cover is provided with an outer-layer reversing channel; two adjacent outer-layer sub-channels are communicated through one outer-layer reversing channel;
and interlayer fins are formed between the sub-channels of the inner-layer cooling channel and the sub-channels of the outer-layer cooling channel.
2. The dual channel heat dissipating motor housing structure of claim 1, wherein: the inclined passage extends from one end of the housing to the other.
3. The dual channel heat dissipating motor housing structure of claim 1, wherein: the sub-channel further comprises a straight-groove channel communicated with the inclined channel, and the straight-groove channel extends along the axial direction of the machine shell.
4. The dual channel heat dissipating motor housing structure of claim 3, wherein: the sub-channel comprises a first straight-groove channel, an inclined channel and a second straight-groove channel which are sequentially communicated along the axial direction.
5. The dual channel heat dissipating motor housing structure of claim 1, wherein: a sealing gasket is arranged between the shell and the end cover, the sealing gasket closes the end face openings of the inner-layer sub-channel and the inner-layer reversing channel, and a position yielding port communicated with the outer-layer sub-channel is formed in the sealing gasket.
6. The dual channel heat dissipating motor housing structure of claim 1, wherein: the sub-channels of the inner-layer cooling channel and the sub-channels of the outer-layer cooling channel are arranged oppositely along the radial direction.
7. The dual channel heat dissipating motor housing structure of claim 1, wherein: the inner layer cooling channel comprises an inner layer channel inlet and an inner layer channel outlet; the outer layer cooling channel comprises an outer layer channel outlet arranged at the inner layer channel inlet and an outer layer channel inlet arranged at the inner layer channel outlet.
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| CN202211366457.5A CN115425795B (en) | 2022-11-03 | 2022-11-03 | Double-channel heat dissipation motor shell structure |
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| CN202211366457.5A CN115425795B (en) | 2022-11-03 | 2022-11-03 | Double-channel heat dissipation motor shell structure |
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| CN115425795B true CN115425795B (en) | 2023-03-24 |
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| DE19628781A1 (en) * | 1996-07-17 | 1998-01-22 | Voith Turbo Kg | Pump unit with a drive cooling system using the liquid to be pumped |
| CN111224501B (en) * | 2018-11-23 | 2021-10-22 | 比亚迪股份有限公司 | Electric assembly |
| CN110829690B (en) * | 2019-11-14 | 2020-10-02 | 青岛中加特电气股份有限公司 | Motor cooling water channel structure and motor |
| CN114793041A (en) * | 2021-01-25 | 2022-07-26 | 中车时代电动汽车股份有限公司 | Water-oil combined cooling speed reduction motor base |
| CN113098183A (en) * | 2021-04-27 | 2021-07-09 | 河南科技大学 | In-wheel motor and in-wheel motor cooling system |
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