CN106533038B - Phase-change heat-dissipation air-cooled motor shell, manufacturing method thereof and air-cooled motor - Google Patents
Phase-change heat-dissipation air-cooled motor shell, manufacturing method thereof and air-cooled motor Download PDFInfo
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- CN106533038B CN106533038B CN201611215067.2A CN201611215067A CN106533038B CN 106533038 B CN106533038 B CN 106533038B CN 201611215067 A CN201611215067 A CN 201611215067A CN 106533038 B CN106533038 B CN 106533038B
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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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/14—Casings; Enclosures; Supports
-
- 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
- H02K5/18—Casings or enclosures characterised by the shape, form or construction thereof with ribs or fins for improving heat transfer
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
- H02K2213/03—Machines characterised by numerical values, ranges, mathematical expressions or similar information
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Motor Or Generator Cooling System (AREA)
- Motor Or Generator Frames (AREA)
Abstract
The invention discloses a phase-change heat-dissipation air-cooled motor shell, a manufacturing method thereof and an air-cooled motor, wherein the phase-change heat-dissipation air-cooled motor shell comprises an annular shell, and a plurality of heat dissipation fins are protruded out of the annular shell along the circumferential direction at intervals, and the phase-change heat-dissipation air-cooled motor shell is characterized in that: the vacuum phase-change heat dissipation device comprises an annular shell, and is characterized by further comprising an upper end plate and a lower end plate, wherein a plurality of vacuum phase-change heat dissipation channels are circumferentially distributed in the annular shell, the vacuum phase-change heat dissipation channels extend from the upper end surface to the lower end surface of the annular shell, two ends of each vacuum phase-change heat dissipation channel are sealed by the upper end plate and the lower end plate, and phase-change working mediums are arranged in the vacuum phase-change heat dissipation channels. The phase-change heat-dissipation air-cooled motor shell is simple in structure, good in heat-dissipation effect, convenient to install and low in cost, and can be suitable for refitting all permanent magnet synchronous motors for vehicles on the market; the manufacturing method is simple and convenient to process; the air-cooled motor has high temperature control effect and stable operation.
Description
Technical Field
The invention relates to a phase-change heat-dissipation air-cooling motor shell, a manufacturing method thereof and an air-cooling motor.
Background
The existing temperature control system of the motor for the automobile mainly depends on a water cooling system or a forced air cooling system. For the forced air cooling system, as the main heating components of the driving motor are the stator windings and the stator iron cores, and the heat transfer paths of the two are mainly carried out by the contact part of the stator iron cores and the air cooling shell, the area of the contact part is only one third to one half of the area of the inner wall surface of the air cooling shell under the limitations of the installation position, the wire outlet mode, the material cost and the like, and the rest area cannot be effectively utilized, so that the phenomenon of overhigh temperature of the local part of the air cooling shell and overlarge temperature difference gradient is caused, the radiating fin groups at the two ends of the air cooling shell cannot be well utilized, the temperature control performance of the whole driving motor is influenced, and the performance of a new energy automobile is further influenced.
Disclosure of Invention
The invention aims to provide a phase-change heat-dissipation air-cooled motor shell, a manufacturing method thereof and an air-cooled motor, which can solve the problems of overhigh local temperature and slow heat dissipation of a heat-dissipation shell of the air-cooled motor.
The aim of the invention is achieved by the following technical scheme.
The invention aims to provide a phase-change heat-dissipation air-cooled motor shell, which comprises an annular shell, wherein a plurality of heat dissipation fins are circumferentially protruded outside the annular shell and are arranged at intervals, and the phase-change heat-dissipation air-cooled motor shell is characterized in that: the vacuum phase-change heat dissipation device comprises an annular shell, and is characterized by further comprising an upper end plate and a lower end plate, wherein a plurality of vacuum phase-change heat dissipation channels are circumferentially distributed in the annular shell, the vacuum phase-change heat dissipation channels extend from the upper end surface to the lower end surface of the annular shell, two ends of each vacuum phase-change heat dissipation channel are sealed by the upper end plate and the lower end plate, and phase-change working mediums are arranged in the vacuum phase-change heat dissipation channels.
The vacuum phase-change heat dissipation channel is axially arranged.
The vacuum phase-change heat dissipation channels are uniformly distributed in the annular shell.
The cross section of the vacuum phase-change heat dissipation channel is circular, arc-shaped, rectangular or trapezoidal.
The upper end face of the annular shell is provided with a first annular groove, the upper ports of two adjacent vacuum phase-change heat dissipation channels are communicated with the first annular groove, and the first annular groove is sealed by the upper end plate.
The lower end face of the annular shell is provided with a second annular groove, the lower ports of two adjacent vacuum phase-change heat dissipation channels are communicated with the second annular groove, and the second annular groove is sealed by the lower end plate.
The first annular groove and the second annular groove are countersunk grooves, and the axial inclination angle of the groove walls of the countersunk grooves is 5-20 degrees.
The inner wall of the vacuum phase-change heat dissipation channel is provided with a micro groove.
The cross section of the micro groove is V-shaped, arc-shaped, zigzag-shaped, rectangular or trapezoid.
The ratio of the groove width to the groove length of the micro groove is 1:200-1:20, the ratio of the groove width to the groove height of the micro groove is 1:4-1:2, and the ratio of the groove width to the pitch of the micro groove 141 is 1:2-1:1.
The width of the micro groove is 0.5-1 mm, the height of the groove is 0.5-2 mm, and the interval is 0.5-1 mm.
The phase-change working medium is deionized water or acetone, and the liquid state pouring amount of the phase-change working medium is 25% -75% of the total volume of the vacuum phase-change heat dissipation channel.
The sealing vacuum degree of the vacuum phase-change heat dissipation channel is less than or equal to 100 Pa.
The outer side surface of the radiating fin is provided with a plurality of radiating reinforcing ribs.
The cross section of the heat dissipation reinforcing rib is V-shaped, arc-shaped, zigzag-shaped, rectangular or trapezoidal.
The annular shell, the radiating fins, the vacuum phase-change radiating channels and the micro grooves are integrally formed by aluminum material through extrusion molding.
Another object of the present invention is to provide a method for manufacturing a phase-change heat-dissipation air-cooled motor housing, which is characterized by comprising:
the method comprises the steps of manufacturing an annular shell through a stretching process, wherein a plurality of radiating fins are protruded out of the annular shell along the circumferential direction, a plurality of vacuum phase-change radiating channels are circumferentially distributed in the annular shell, the vacuum phase-change radiating channels extend from the upper end face to the lower end face of the annular shell, and micro grooves are formed in the inner wall of the vacuum phase-change radiating channels;
the lower end plate is arranged on a second annular groove of the annular shell and welded and sealed, and the lower end plate seals a lower port of the vacuum phase-change heat dissipation channel;
the upper end plate is arranged on the first annular groove of the annular shell and welded and sealed, the upper end plate seals the upper port of the vacuum phase-change heat dissipation channel, and a vacuumizing circular tube is protruded on the upper end plate and communicated with the vacuum phase-change heat dissipation channel.
Filling liquid phase change working medium into the vacuum phase change heat dissipation channel through the vacuumizing round tube;
vacuumizing the vacuum phase-change heat dissipation channel through the vacuumizing round tube;
and pinching off the vacuumized circular tube and performing welding sealing treatment on the pinching-off part.
Still another object of the present invention is to provide an air-cooled motor, including a housing assembly, a stator assembly, a rotor assembly and a rotating shaft, wherein the rotor assembly is mounted on the rotating shaft, the stator assembly is mounted in the housing assembly in a nested manner, the rotor assembly is sleeved in the stator assembly, the stator assembly includes a stator core and a coil winding wound on the stator core, and the air-cooled motor is characterized in that: the shell assembly comprises a shell body, an upper end cover and a lower end cover, wherein the shell body is the phase-change heat dissipation air-cooled motor shell.
Compared with the prior art, the invention has the following effects:
a plurality of vacuum phase-change heat dissipation channels are circumferentially distributed in the annular shell, phase-change working media are arranged in the vacuum phase-change heat dissipation channels, the vacuum phase-change heat dissipation channels are endowed with extremely efficient heat transfer capability through the phase-change property of the liquid working media in a vacuum environment, the heat conductivity coefficient of the vacuum phase-change heat dissipation channels is tens of thousands times of that of known metals, and the rapid recombination of heat distribution in the driving motor can be realized;
the vacuum phase-change heat dissipation channel extends from the upper end face to the lower end face of the annular shell, so that a large amount of heat concentrated at a local position in the prior art can be rapidly spread and diffused to the whole annular shell, the problem of local temperature overheating is solved, the temperature difference gradient of the annular shell is greatly reduced, and more heat is further promoted to be conducted from the inside of the annular shell to the heat dissipation fins for heat dissipation;
the vacuum phase-change heat dissipation channels are axially arranged and uniformly distributed in the annular shell, so that the processing is convenient and the heat dissipation is uniform;
the upper ports of two adjacent vacuum phase-change heat dissipation channels are communicated with a first annular groove, and the first annular groove is sealed by the upper end plate; the lower ports of two adjacent vacuum phase-change heat dissipation channels are communicated with a second annular groove, the second annular groove is sealed by the lower end plate, and the mutually communicated vacuum phase-change heat dissipation channels are convenient for filling phase-change working media;
the inner wall of the vacuum phase-change heat dissipation channel is provided with micro grooves, and the micro grooves are beneficial to the phase change of liquid working medium into gas when heated, so that the heat transfer effect is improved;
the outer side surface of the radiating fin is provided with a plurality of radiating reinforcing ribs, the contact area of convection radiation is increased by the reinforcing ribs, and the radiating effect is better;
the annular shell, the radiating fins, the vacuum phase-change radiating channels and the micro grooves are integrally formed by aluminum material through extrusion molding, so that the use and assembly of the phase-change heat pipe are avoided, and the contact thermal resistance in a heat dissipation path is further reduced;
the manufacturing method of the phase-change heat-dissipation air-cooled motor shell is simple and convenient to process;
the air-cooled motor uses the phase-change radiating air-cooled motor shell, so that the heat of the coil winding and the stator core can be rapidly conducted to the radiating fins for radiating, the temperature control performance of the driving motor is improved, and the running stability of the motor is improved.
Drawings
Fig. 1 is a perspective view of a phase-change heat dissipation air-cooled motor housing according to a first embodiment of the present invention;
FIG. 2 is a cross-sectional view A-A of FIG. 1;
FIG. 3 is an enlarged view at B of FIG. 2;
FIG. 4 is an enlarged view at D of FIG. 2;
fig. 5 is an exploded view of a phase-change heat dissipation air-cooled motor housing according to a first embodiment of the present invention;
fig. 6 is a top view of an annular casing of a phase change heat dissipation air cooling motor casing according to an embodiment of the present invention;
FIG. 7 is an enlarged view at C of FIG. 6;
FIG. 8 is a schematic view of one shape of the vacuum phase-change heat dissipation channel;
FIG. 9 is a schematic view of another shape of the vacuum phase-change heat dissipation channel;
fig. 10 is a cross-sectional view of an air-cooled motor according to a third embodiment of the present invention.
Detailed Description
The invention is described in further detail below by means of specific embodiments in connection with the accompanying drawings.
Embodiment one:
as shown in fig. 1 to 7, the present embodiment provides a phase-change heat dissipation air-cooled motor housing, which includes an annular housing 1, and a plurality of heat dissipation fins 11 arranged at intervals are protruded out of the annular housing 1 along the circumferential direction, and is characterized in that: the vacuum phase-change heat dissipation device is characterized by further comprising an upper end plate 2 and a lower end plate 3, wherein a plurality of vacuum phase-change heat dissipation channels 14 are circumferentially distributed in the annular shell 1, the vacuum phase-change heat dissipation channels 14 extend from the upper end face 12 to the lower end face 13 of the annular shell 1, two ends of each vacuum phase-change heat dissipation channel 14 are sealed by the upper end plate 2 and the lower end plate 3, and phase-change working mediums are arranged in the vacuum phase-change heat dissipation channels 14.
According to the phase-change heat-dissipation air-cooling motor shell, the phase-change property of the liquid working medium in the vacuum environment is utilized to endow the vacuum phase-change heat-dissipation channel with extremely efficient heat transfer capability; the vacuum phase-change heat dissipation channel 14 extends from the upper end face 12 to the lower end face 13 of the annular shell 1, promotes rapid diffusion of heat from the local high-temperature position of the annular shell 1 to the low-temperature positions at the two ends, and plays a role in uniform heat distribution.
The vacuum phase-change heat dissipation channel 14 is axially arranged, and is convenient to process.
The vacuum phase-change heat dissipation channels 14 are uniformly distributed in the annular shell 1, and heat dissipation is uniform.
The upper end face 12 of the annular housing 1 is provided with a first annular groove 15, and the upper ports 142 of two adjacent vacuum phase-change heat dissipation channels 14 are communicated with the first annular groove 15, and the first annular groove 15 is sealed by the upper end plate 2. The upper ports 142 of the vacuum phase-change heat dissipation channels 14 are mutually communicated so as to facilitate the filling of phase-change working medium.
The lower end face 13 of the annular housing 1 is provided with a second annular groove 16, the lower ports 143 of two adjacent vacuum phase-change heat dissipation channels 14 are communicated with the second annular groove 16, and the second annular groove 16 is sealed by the lower end plate 3. The mutually communicated vacuum phase-change heat dissipation channels 14 are more beneficial to the flow of phase-change working media.
The first annular groove 15 and the second annular groove 16 are countersunk grooves, and the axial inclination angle of the groove walls of the countersunk grooves is 5-20 degrees.
The upper end plate 2 includes a top wall 22 and a side wall 23, the top wall 22 is provided with a circular vacuumizing tube 21, the top of the circular vacuumizing tube 21 is sealed, and the side wall 23 is attached to the wall of the countersunk groove.
The inner wall of the vacuum phase-change heat dissipation channel 14 is provided with the micro-grooves 141, and the micro-grooves 141 are beneficial to the phase change of the liquid working medium into gas when heated, so that the heat transfer effect is improved.
The ratio of the groove width D1 to the groove length L of the micro groove 141 is 1:200-1:20, the ratio of the groove width D1 to the groove height H of the micro groove 141 is 1:4-1:2, and the ratio of the groove width D1 to the distance D2 of the micro groove 141 is 1:2-1:1.
The groove width D1 of the micro groove 141 is 0.5 to 1mm, the groove height H is 0.5 to 2mm, and the pitch D2 is 0.5 to 1mm.
The phase-change working medium is deionized water or acetone, and the liquid state pouring amount of the phase-change working medium is 25% -75% of the total volume of the vacuum phase-change heat dissipation channel 14.
The sealing vacuum degree of the vacuum phase-change heat dissipation channel 14 is less than or equal to 100 Pa.
The outer side surface of the radiating fin 11 is provided with a plurality of radiating reinforcing ribs 111, the contact area of convection radiation is increased by the reinforcing ribs 111, and the radiating effect is better.
The annular housing 1, the heat dissipation fins 11, the vacuum phase-change heat dissipation channels 14 and the micro grooves 141 are integrally formed by aluminum extrusion. The integral molding can avoid the use and assembly of the phase-change heat pipe, and further reduce the contact thermal resistance in the heat dissipation path.
The outer side surface of the heat radiating fin 11 may be reinforced with a heat transfer effect by sand blasting. The upper end face 12 and the lower end face 13 of the annular shell 1 are also provided with a plurality of threaded holes so as to realize the bolt connection with the upper end cover and the lower end cover of the motor.
In this embodiment, 24 vacuum phase-change heat dissipation channels 14 are uniformly distributed in the annular housing 1, the cross section of the vacuum phase-change heat dissipation channel 14 is rectangular, the cross section of the micro groove 141 is V-shaped, and the cross section of the heat dissipation reinforcing rib 111 is V-shaped.
The ratio of the groove width D1 to the groove length L of the micro groove 141 is 1:200, the groove width D1 of the micro groove 141 is 1mm, the groove height H is 1mm, and the distance D2 is 1mm.
The phase-change working medium poured into the vacuum phase-change heat dissipation channel 14 is deionized water, the total pouring amount of the deionized water is 80ml, and the sealing vacuum degree of the vacuum phase-change heat dissipation channel 14 is controlled between 10 Pa and 20 Pa.
The axial inclination angle of the groove walls of the first annular groove 15 and the second annular groove 16 described above is 5 °.
As shown in fig. 8 and 9, the cross section of the vacuum phase-change heat dissipation channel 14 may be circular, arc-shaped, trapezoid, or the like; the cross section of the micro groove 141 can also be rectangular, arc-shaped, zigzag-shaped or trapezoid; the cross section of the heat dissipation reinforced rib 111 may be arc-shaped, zigzag-shaped, rectangular or trapezoid.
The phase-change heat-dissipation air-cooled motor shell provided by the embodiment has the advantages of simple structure, good heat-dissipation effect, convenience in installation and low cost, and can be suitable for refitting all permanent magnet synchronous motors for vehicles on the market; the electromagnetic performance of the motor can be promoted to be designed towards the direction of higher power density, and the purposes of light weight and low cost of the motor assembly are realized.
Embodiment two:
the embodiment provides a manufacturing method of a phase-change heat dissipation air-cooled motor shell, which is characterized by comprising the following steps:
step 1: the method comprises the steps of manufacturing the annular shell 1 by a stretching process, wherein a plurality of radiating fins 11 are arranged at intervals along the circumferential direction outside the annular shell 1 in a protruding mode, a plurality of vacuum phase-change radiating channels 14 are distributed in the circumferential direction inside the annular shell 1, the vacuum phase-change radiating channels 14 extend from the upper end face 12 to the lower end face 13 of the annular shell 1, and micro grooves 141 are formed in the inner wall of the vacuum phase-change radiating channels 14;
step 2: mounting the lower end plate 3 on the second annular groove 16 of the annular housing 1 and welding and sealing the lower end plate 3, wherein the lower end plate 3 seals the lower port 143 of the vacuum phase-change heat dissipation channel 14;
step 3: the upper end plate 2 is arranged on the first annular groove 15 of the annular shell 1 and welded and sealed with the upper end plate 2, the upper end plate 2 seals the upper port 142 of the vacuum phase-change heat dissipation channel 14, and a vacuumizing circular tube 21 protrudes from the upper end plate 2 and is communicated with the vacuum phase-change heat dissipation channel 14;
the length of the vacuumizing round tube 21 of the upper end plate 2 is 10-50 mm.
Step 4: filling liquid phase change working medium into the vacuum phase change heat dissipation channel 14 through the vacuumizing round tube 21;
step 5: vacuumizing the vacuum phase-change heat dissipation channel 14 through the vacuumizing round tube 21;
step 6: the vacuumized circular tube 21 is pinched off and the pinch-off part is welded and sealed.
The manufacturing method of the phase-change heat-dissipation air-cooling motor shell is simple and convenient to process.
The welding and sealing of the lower end plate 3 in the step 2 and the welding and sealing of the upper end plate 2 in the step 3 may be performed by using a plurality of welding processes such as high-temperature brazing and low-temperature soldering.
After the step 1 is completed, the method further comprises the steps of 1.1 and 1.2:
step 1.1: after the annular shell 1 is molded, the annular shell is subjected to finish machining, burr and burr removal, and then a water flow flushing procedure is carried out to remove aluminum scraps and cooling liquid on the radiating fins 11 and in the vacuum phase-change radiating channels 14.
Step 1.2: the annular shell 1 is placed in an oven for baking to remove water and cooled to room temperature.
Step 6 above: pinch-off the vacuumized circular tube 21 and performing welding sealing treatment on the pinch-off part, specifically: the vacuum circular tube 21 is clamped off by a hydraulic device, mechanical force sealing is carried out, and then welding sealing operation is carried out on the clamped-off position of the vacuum circular tube 21 by argon arc welding.
Embodiment III:
as shown in fig. 10, the embodiment provides an air-cooled motor, which comprises a housing assembly, a stator assembly 4, a rotor assembly 5 and a rotating shaft 6, wherein the rotor assembly 5 is installed on the rotating shaft 6, the stator assembly 4 is installed inside the housing assembly in a nested manner, the rotor assembly 5 is sleeved inside the stator assembly 4, and the stator assembly 4 comprises a stator core 41 and a coil winding 42 wound on the stator core 41, and is characterized in that: the housing assembly comprises a housing shell 10, an upper end cover 71 and a lower end cover 72, wherein the housing shell 10 is the phase-change heat dissipation air-cooled motor housing in the first embodiment.
In the air-cooled motor of the embodiment, the phase-change radiating air-cooled motor housing is used, so that heat of the coil winding 42 and the stator core 41 can be rapidly conducted to the radiating fins 11 for radiating, the temperature control performance of the driving motor is improved, and the running stability of the motor is improved.
The above examples are preferred embodiments of the present invention, but the embodiments of the present invention are not limited thereto, and any other changes, modifications, substitutions, combinations, and simplifications made without departing from the spirit and principles of the present invention are included in the scope of the present invention.
Claims (16)
1. The utility model provides a phase transition heat dissipation forced air cooling motor shell, includes annular casing (1), the outside of annular casing (1) has a plurality of interval arrangement's radiating fin (11) along circumference protrusion, its characterized in that: the vacuum phase-change heat dissipation device comprises an annular shell (1), and is characterized by further comprising an upper end plate (2) and a lower end plate (3), wherein a plurality of vacuum phase-change heat dissipation channels (14) are circumferentially distributed in the annular shell (1), the vacuum phase-change heat dissipation channels (14) extend from the upper end face (12) to the lower end face (13) of the annular shell (1), two ends of each vacuum phase-change heat dissipation channel (14) are sealed by the upper end plate (2) and the lower end plate (3), and phase-change working mediums are arranged in the vacuum phase-change heat dissipation channels (14);
a first annular groove (15) is formed in the upper end face (12) of the annular shell (1), upper ports (142) of two adjacent vacuum phase-change heat dissipation channels (14) are communicated with the first annular groove (15), and the first annular groove (15) is sealed by the upper end plate (2);
a second annular groove (16) is formed in the lower end face (13) of the annular shell (1), lower ports (143) of two adjacent vacuum phase-change heat dissipation channels (14) are communicated with the second annular groove (16), and the second annular groove (16) is sealed by the lower end plate (3);
the first annular groove (15) and the second annular groove (16) are countersunk grooves;
the upper end plate (2) comprises a top wall (22) and side walls (23), a vacuumizing circular tube (21) is arranged on the top wall (22), and the side walls (23) are attached to the groove walls of the countersunk grooves.
2. A phase change heat dissipation air cooled motor housing as defined in claim 1, wherein: the vacuum phase-change heat dissipation channel (14) is axially arranged.
3. A phase change heat dissipation air cooled motor housing as defined in claim 2, wherein: the vacuum phase-change heat dissipation channels (14) are uniformly distributed in the annular shell (1).
4. A phase change heat dissipation air cooled motor housing as recited in claim 3, wherein: the cross section of the vacuum phase-change heat dissipation channel (14) is circular, arc-shaped, rectangular or trapezoid.
5. A phase change heat dissipation air cooled motor housing as defined in claim 1, wherein: the axial inclination angle of the groove wall of the countersunk groove is 5-20 degrees.
6. A phase change heat dissipation air cooled motor housing as recited in any one of claims 1-5, wherein: the inner wall of the vacuum phase-change heat dissipation channel (14) is provided with a micro groove (141).
7. The phase-change heat dissipation air-cooled motor housing of claim 6, wherein: the cross section of the micro groove (141) is V-shaped, arc-shaped, zigzag-shaped, rectangular or trapezoid.
8. The phase-change heat dissipation air-cooled motor housing of claim 7, wherein: the ratio of the groove width to the groove length of the micro groove (141) is 1:200-1:20, the ratio of the groove width to the groove height of the micro groove (141) is 1:4-1:2, and the ratio of the groove width to the pitch of the micro groove (141) is 1:2-1:1.
9. The phase-change heat dissipation air-cooled motor housing of claim 8, wherein: the groove width of the micro groove (141) is 0.5-1 mm, the groove height is 0.5-2 mm, and the interval is 0.5-1 mm.
10. A phase change heat dissipation air cooled motor housing as recited in claim 9, wherein: the phase-change working medium is deionized water or acetone, and the liquid state pouring quantity of the phase-change working medium is 25% -75% of the total volume of the vacuum phase-change heat dissipation channel (14).
11. A phase change heat dissipation air cooled motor housing as recited in claim 10, wherein: the sealing vacuum degree of the vacuum phase-change heat dissipation channel (14) is less than or equal to 100 Pa.
12. A phase change heat dissipation air cooled motor housing as recited in claim 11, wherein: the outer side surface of the radiating fin (11) is provided with a plurality of radiating reinforcing ribs (111).
13. A phase change heat dissipation air cooled motor housing as recited in claim 12, wherein: the cross section of the heat dissipation reinforcing rib (111) is V-shaped, arc-shaped, zigzag-shaped, rectangular or trapezoid.
14. The phase-change heat dissipation air-cooled motor housing of claim 6, wherein: the annular shell (1), the radiating fins (11), the vacuum phase-change radiating channels (14) and the micro grooves (141) are integrally formed by aluminum material through extrusion molding.
15. A method of manufacturing a phase change heat dissipation air cooled motor housing as defined in any one of claims 1 to 14, comprising:
manufacturing the annular shell (1) by a stretching process, wherein a plurality of radiating fins (11) are protruded out of the annular shell (1) along the circumferential direction, a plurality of vacuum phase-change radiating channels (14) are circumferentially distributed in the annular shell (1), the vacuum phase-change radiating channels (14) extend from the upper end face (12) to the lower end face (13) of the annular shell (1), and micro grooves (141) are formed in the inner wall of the vacuum phase-change radiating channels (14);
the lower end plate (3) is arranged on a second annular groove (16) of the annular shell (1), the lower end plate (3) is welded and sealed, and the lower end plate (3) seals a lower port (143) of the vacuum phase-change heat dissipation channel (14);
the upper end plate (2) is arranged on a first annular groove (15) of the annular shell (1), the upper end plate (2) is welded and sealed, the upper end plate (2) seals an upper port (142) of the vacuum phase-change heat dissipation channel (14), and a vacuumizing circular tube (21) protrudes from the upper end plate (2) and is communicated with the vacuum phase-change heat dissipation channel (14);
filling liquid phase change working medium into the vacuum phase change heat dissipation channel (14) through the vacuumizing round tube (21);
vacuumizing the vacuum phase-change heat dissipation channel (14) through the vacuumizing round tube (21);
and pinching off the vacuumized circular tube (21) and performing welding sealing treatment on the pinching-off part.
16. The utility model provides an air-cooled motor, includes shell subassembly, stator module (4), rotor subassembly (5) and pivot (6), rotor subassembly (5) are installed on pivot (6), stator module (4) nest installation is in the shell subassembly the inside, rotor subassembly (5) cover is located stator module (4) the inside, wherein stator module (4) include stator core (41) and around locating coil winding (42) on stator core (41), its characterized in that: the housing assembly comprises a housing shell (10), an upper end cover (71) and a lower end cover (72), wherein the housing shell (10) is the phase-change heat dissipation air-cooled motor housing as claimed in any one of claims 1 to 14.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611215067.2A CN106533038B (en) | 2016-12-26 | 2016-12-26 | Phase-change heat-dissipation air-cooled motor shell, manufacturing method thereof and air-cooled motor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611215067.2A CN106533038B (en) | 2016-12-26 | 2016-12-26 | Phase-change heat-dissipation air-cooled motor shell, manufacturing method thereof and air-cooled motor |
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| CN106533038A CN106533038A (en) | 2017-03-22 |
| CN106533038B true CN106533038B (en) | 2024-01-05 |
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| CN106989165A (en) * | 2017-05-25 | 2017-07-28 | 贵州大学 | One kind is used for Hydrodynamic transmission heat radiating type housing |
| CN107017728B (en) * | 2017-05-27 | 2019-11-26 | 中山大洋电机股份有限公司 | A kind of phase-change heat motor case and its ventilated machine of application |
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