CN116800005A - Ventilating and radiating structure of air-cooled motor - Google Patents
Ventilating and radiating structure of air-cooled motor Download PDFInfo
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- CN116800005A CN116800005A CN202310038862.2A CN202310038862A CN116800005A CN 116800005 A CN116800005 A CN 116800005A CN 202310038862 A CN202310038862 A CN 202310038862A CN 116800005 A CN116800005 A CN 116800005A
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- 238000009423 ventilation Methods 0.000 claims abstract description 51
- 238000004804 winding Methods 0.000 claims abstract description 25
- 230000017525 heat dissipation Effects 0.000 claims abstract description 23
- 230000000149 penetrating effect Effects 0.000 claims abstract description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 3
- 238000001816 cooling Methods 0.000 description 46
- 230000004075 alteration Effects 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
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
- H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
- H02K5/207—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium with openings in the casing specially adapted for ambient air
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/20—Stationary parts of the magnetic circuit with channels or ducts for flow of cooling medium
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/32—Rotating parts of the magnetic circuit with channels or ducts for flow of cooling medium
-
- 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
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
- H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
- H02K9/06—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/08—Arrangements for cooling or ventilating by gaseous cooling medium circulating wholly within the machine casing
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
The application discloses a ventilation and heat dissipation structure of an air-cooled motor, which comprises a casing, a front end cover, a rear end cover, a stator core, windings, a rotating shaft, a rotor, an impeller and a housing; the front end cover is provided with end cover air inlets in a distributed manner, the rear end cover is provided with end cover vent holes, and the housing is provided with housing vent holes; the two ends of the shell are circumferentially and symmetrically provided with shell air inlets, the yoke part of the stator core is axially provided with an axial air channel, the axial air channel is coplanar with the hole center of the shell air inlet, one end of the axial air channel is connected with a ventilation pipe, the other end of the axial air channel is provided with an opening, the ventilation pipes at the two ends of the axial air channel are alternately arranged, and the ventilation pipes are connected with the corresponding shell air inlets; the rotating shaft is provided with a rotating shaft vent hole in an axial penetrating way, and the tail part of the rotating shaft is provided with a cross-shaped hole in a radial way; an air gap is arranged between the rotor and the stator core. The application can improve the ventilation and heat dissipation efficiency of the motor and has more uniform temperature distribution.
Description
Technical Field
The application relates to the technical field of electric machinery, in particular to a ventilation and heat dissipation structure of an air-cooled motor.
Background
The air-cooled motor takes air as a cooling medium, and the heat exchange with the motor is completed through the flow of the air, so that the ventilation and heat dissipation purposes are achieved, the flow path of the air is optimized through reasonable structural design, the ventilation and heat dissipation efficiency is improved, and the temperature distribution of each part of the motor is more uniform. According to the difference of pneumatic principles, ventilation and heat dissipation can be divided into air blowing cooling and air draft cooling, and the two cooling structures are the same, but the flowing directions of cooling air are opposite.
CN205371095U designs an air cooling system suitable for a centrifugal fan, and is installed on a shaft through impellers on two sides and rotates along with a rotor, a diversion opening corresponding to the impellers is arranged at the center of a volute, air is sucked into a motor from an air inlet arranged on the right side of a motor casing along the radial direction to take away heat, and cooling air flows in an air pipe and is finally discharged through a first air outlet and a second air outlet on the motor casing.
CN217010554U has designed a negative pressure air-cooled heat dissipation system suitable for the air-blower, and the cooling air gets into inside the motor through the air inlet that sets up in the fan motor casing both sides, and the gas vent is connected with the mass flow side of air-blower through the cooling tube, thereby produces negative pressure in the air-blower when the air-blower is running and drives the cooling air flow to finally discharge from the cooling tube.
CN215805312U designs a blower main machine heat radiation structure, one end of the rotor is connected with the impeller, a first air passage is formed between the stator and the inner wall of the main machine shell, a second air passage is formed between the stator and the rotor, the first air passage and the second air passage are respectively communicated with the first drainage air passage, continuous negative pressure is provided by the rotating impeller, and the guiding air flow is continuously conducted and enters into the first drainage air passage through the first air passage and the second air passage.
At present, the existing scheme is mainly applicable to fans due to the limitation of ventilation principles and heat dissipation structures, and the load types of the existing scheme are not applicable to other occasions. On the one hand, the existing scheme has the problems of long cooling air path and single path, not only has low reliability, but also has the defects of limited heat quantity which can be taken away and uneven temperature distribution of the motor because the temperature of cooling air at the rear section of the path is increased. On the other hand, the rotor heat dissipation of the existing scheme only utilizes the cooling air to flow through the air gap to take away heat from the surface of the rotor, but the inside of the rotor cannot exchange heat to reduce the temperature, and the cooling efficiency is low. Finally, the contact area between the surface of the motor and cooling air is limited, the natural heat dissipation effect is poor, gaps are arranged between the stator core and the inner wall of the shell, and the thermal resistance is large.
Disclosure of Invention
To the not enough of above-mentioned prior art, the technical problem that this patent application will solve is how to provide a be applicable to induced draft cooling and the air cooled motor's that bloies cooling ventilation heat dissipation structure of multipath, short wind way, inside ventilation of rotor, has not only improved the ventilation heat dissipation efficiency of motor, and temperature distribution is more even moreover.
In order to solve the technical problems, the application adopts the following technical scheme:
a ventilation and heat dissipation structure of an air-cooled motor comprises a shell, a front end cover, a rear end cover, a stator core, windings, a rotating shaft, a rotor, an impeller and a housing; the two ends of the shell are respectively and fixedly connected with the front end cover and the rear end cover, the rear end cover is fixedly connected with the housing, and a cavity is formed between the rear end cover and the housing; the stator core is fixedly arranged in the shell, a winding is embedded in a groove of the stator core, and protruding parts at two ends of the winding are respectively a first winding end part and a second winding end part; the rotor is fixedly arranged on the outer side of the rotating shaft, the rotor and the stator iron core are coaxially arranged, the impeller is fixedly arranged at the tail end of the rotating shaft, the impeller is positioned between the rear end cover and the housing, the impeller is positioned in the cavity, and the impeller rotates along with the rotating shaft;
the front end cover is provided with end cover air inlets in a distributed manner, the rear end cover is provided with end cover vent holes, and the housing is provided with housing vent holes; the two ends of the shell are circumferentially and symmetrically provided with shell air inlets, the yoke part of the stator core is axially provided with an axial air channel, the axial air channel is coplanar with the hole center of the shell air inlet, one end of the axial air channel is connected with a ventilation pipe, the other end of the axial air channel is provided with an opening, the ventilation pipes at the two ends of the axial air channel are alternately arranged, and the ventilation pipes are connected with the corresponding shell air inlets; the rotating shaft is provided with a rotating shaft vent hole in an axial penetrating way, and the tail part of the rotating shaft is provided with a cross-shaped hole in a radial way; an air gap is arranged between the rotor and the stator core to form a ventilation air channel, the outer surface of the stator core is fixedly arranged with the inner surface of the shell, and the inner surface of the rotor is fixedly arranged with the outer surface of the rotating shaft.
The stator core comprises a stator core and a stator core, wherein 2N casing air inlets are uniformly distributed at two ends of the casing in the circumferential direction respectively, the casing air inlets are symmetrically arranged at two ends of the casing, and 2N axial air channels are axially formed in the yoke portion of the stator core. Namely, the air inlets of the housings are separated by 180/N degrees on the same side of the housing, and the axial ventilating channels of the yoke parts of the stator cores are separated by 180/N degrees. The air inlet holes of the shell on the same side of the surface of the shell are respectively connected with the axial ventilating duct of the stator core by using ventilating pipes every 90/N degrees, and the ventilating pipes at the two ends of the shell are alternately connected, namely, each end of the shell is provided with N air inlet holes of the shell and the axial ventilating duct of the stator core which are connected through the ventilating pipes, and the total number of the air inlet holes is 2N, but each end of the shell is respectively provided with N air inlet holes which are not connected, and cooling air can directly enter and exit the inside of the motor through the 2N air inlet holes which are not connected.
Wherein, the end cover ventilation hole is a waist type hole.
And heat dissipation ribs are distributed on the outer side of the shell.
And a lock nut used for limiting the axial freedom degree of the impeller is fixed on the rotating shaft.
When the air draft cooling is performed, the impeller rotates positively, continuous negative pressure is formed in the cavity, and cooling air flowing into the motor enters the cavity between the rear end cover and the housing through the kidney-shaped end cover vent hole on the rear end cover due to the action of air pressure difference, and is discharged from the housing vent hole on the housing through the driving of the impeller. When the air is blown and cooled, the impeller rotates in the opposite direction, continuous positive pressure is formed in the cavity, and cooling air enters the cavity between the rear end cover and the housing through the housing exhaust hole on the impeller housing due to the action of air pressure difference and then enters the motor from the kidney-shaped end cover vent hole on the rear end cover through the driving of the impeller. The cooling air flows through the same path when in induced draft cooling and blowing cooling, but the flowing directions are opposite.
When the cooling device is used for exhausting cooling, the cooling device is provided with the following six air paths:
1. the shell air inlet hole, the ventilation pipe, the axial ventilation channel, the end cover air hole and the shell air hole at one side of the shell form a first air path;
2. the air inlet hole of the shell, the ventilation pipe, the axial ventilation channel, the air gap, the end cover ventilation hole and the housing exhaust hole on the other side of the shell form a second air path;
3. the air inlet hole of the shell, the air gap, the end cover vent hole and the housing vent hole at one side of the shell form a third air channel;
4. the air inlet hole of the shell, the air hole of the end cover and the air hole of the shell form a fourth air channel;
5. the end cover air inlet hole, the air gap, the end cover air vent and the housing air vent form a fifth air channel;
6. the rotary shaft air inlet hole, the end cover air vent and the housing air vent form a sixth air channel.
The first air channel and the second air channel are mainly used for cooling and radiating stator iron cores, the third air channel and the fourth air channel are mainly used for cooling and radiating the first winding end part and the second winding end part, and the fifth air channel and the sixth air channel are mainly used for cooling and radiating rotors. In the case of the air-blown cooling, the air flow path of the upper air path is reversed.
In summary, the ventilation and heat dissipation structure of the air-cooled motor has the following beneficial effects:
1. forming a plurality of air inlet channels, and having larger cooling air flow and higher cooling efficiency;
2. the air inlet of part of the shell is connected with the axial ventilating duct of the stator core through the ventilating duct, so that the flowing path of cooling air is effectively shortened, a plurality of independent air paths are formed, the heat dissipation can be respectively carried out on the first winding end part, the second winding end part and the stator core at two sides, and the temperature distribution is more uniform;
3. the surface of the rotor is cooled by air flowing through the air gap, the interior of the rotor is contacted with cooling air flowing through the ventilation holes of the rotating shaft, the heat dissipation area is larger, and the cooling paths are richer;
4. the outer surface of the shell is provided with heat dissipation ribs, the outer surface of the stator iron core is in direct contact with the inner surface of the shell, the heat conduction area is large, and the auxiliary effect of natural heat dissipation is achieved;
5. through utilizing set up centrifugal fan at non-axle end and form negative pressure and malleation in the housing, the axle end of stretching can connect and process as required, and load type is richer.
Drawings
Fig. 1 is a schematic diagram of the ventilation and heat dissipation structure of an air-cooled motor according to the present application.
Fig. 2 is a schematic view of another orientation of fig. 1.
Fig. 3 is a side view of fig. 1.
Fig. 4 is a cross-sectional view of A-A in fig. 3.
Fig. 5 is a schematic view of the front end cap.
Fig. 6 is a schematic view of the housing.
Fig. 7 is a schematic view of a stator core.
Fig. 8 is a schematic view of the rear end cap.
FIG. 9 is a schematic diagram of a first and second wind path.
Fig. 10 is a schematic view of a third and fourth wind path.
Fig. 11 is a schematic view of a fifth and a sixth wind path.
Detailed Description
The present application will be described in further detail with reference to the accompanying drawings. In the description of the present application, it should be understood that the azimuth or positional relationship indicated by the azimuth words such as "upper, lower" and "top, bottom", etc. are generally based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of description and simplification of the description, and these azimuth words do not indicate or imply that the apparatus or element to be referred to must have a specific azimuth or be constructed and operated in a specific azimuth, without limiting the scope of protection of the present application; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.
1-8, the ventilation and heat dissipation structure of the air-cooled motor comprises a shell 2, a front end cover 1, a rear end cover 5, a stator core 3, a winding 7, a rotating shaft 6, a rotor 8, an impeller 9 and a housing 10; the two ends of the shell 2 are respectively and fixedly connected with the front end cover 1 and the rear end cover 5, the rear end cover 5 is fixedly connected with the housing 10, and a cavity is formed between the rear end cover 5 and the housing 10; the stator core 3 is fixedly arranged in the shell 2, a winding 7 is embedded in a groove of the stator core 3, and the extending parts at two ends of the winding 7 are respectively a first winding end part and a second winding end part; the rotor 8 is fixedly arranged on the outer side of the rotating shaft 6, the rotor 8 and the stator core 3 are coaxially arranged, the impeller 9 is fixedly arranged at the tail end of the rotating shaft 6, the impeller 9 is positioned between the rear end cover 5 and the housing 10, the impeller 9 is positioned in the cavity, and the impeller 9 rotates along with the rotating shaft 6;
the front end cover 1 is provided with end cover air inlet holes in a distributed manner, the rear end cover 5 is provided with end cover vent holes which are waist-shaped holes, and the housing 10 is provided with housing vent holes; the two ends of the shell 2 are circumferentially and symmetrically provided with shell air inlets, the yoke part of the stator core 3 is axially provided with an axial air channel, the axial air channel is coplanar with the hole center of the shell air inlet, one end of the axial air channel is connected with a ventilation pipe 4, the other end of the axial air channel is provided with an opening, the ventilation pipes at the two ends of the axial air channel are alternately arranged, and the ventilation pipes are connected with the corresponding shell air inlets; the rotating shaft 6 is provided with a rotating shaft vent hole in an axial penetrating way, and the tail part of the rotating shaft is provided with a cross-shaped hole in a radial way; an air gap is arranged between the rotor 8 and the stator core 3 to form a ventilation duct, the outer surface of the stator core 3 is fixedly arranged with the inner surface of the casing 2, and the inner surface of the rotor 8 is fixedly arranged with the outer surface of the rotating shaft 6.
Specifically, the ventilation pipe is L-shaped and is formed by combining and connecting two straight pipes and a right-angle bent pipe.
Taking exhaust cooling as an example:
1. the front end cover 1 is uniformly provided with 12 end cover air inlet holes, as shown in figure 5, which are arranged on the shell 2.
2. The outer surface of the casing 2 is provided with radiating ribs for increasing the surface area contacted with cooling air, 12 casing air inlets are symmetrically and uniformly distributed on the left side and the right side of the casing 2 respectively, and the left side is sequentially numbered A1-A12 and the right side is sequentially numbered B1-B12 based on two holes on the left side and the right side, which are collinear, as shown in FIG. 6.
3. The stator core 3 is embedded with windings 7, the extending parts at two sides of the windings 7 are called a first winding end part and a second winding end part, 12 uniformly distributed axial ventilation channels are formed in the yoke part of the stator core 3 along the axial direction, and the axial ventilation channels are sequentially marked as C1-C12, as shown in fig. 7. The outer surface of the stator core 3 is matched with the inner surface of the casing 2, and the axial ventilating duct C1 and the casing air inlets A1 and B1 on the casing 2 are coplanar.
4. The rear end cap 5 is mounted on the casing 2, and four end cap ventilation holes for ventilation are formed in the rear end cap, and the end cap ventilation holes are kidney-shaped holes, as shown in fig. 8.
5. The rotating shaft 6 is provided with a rotating shaft vent hole along the axial direction, the tail part is radially provided with a cross-shaped hole, the rotating shaft 6 is fixedly provided with a rotor 8, the rotor 8 and the stator core 3 are coaxially arranged, and an air gap exists between the rotor 8 and the stator core 3.
6. The cover 10 is mounted on the rear end cap 5, the joint surface is sealed, and the cover 10 is provided with an exhaust hole for exhausting.
7. The impeller 9 is fixedly arranged at the tail end of the rotating shaft 6, is opposite to the rear end cover 5 and the housing 10, can rotate along with the rotating shaft, and has limited axial freedom degree by the locking nut 11.
8. The left sides of A1 and C1 are connected by using a ventilation pipe 4, the right sides of B2 and C2 are connected by using a ventilation pipe 4, the left sides of A3 and C3 are connected by using a connecting pipe 4, the right sides of B4 and C4 are connected by using a connecting pipe 4, and the process is carried out according to the rule until all C1-C12 are connected, and the final connection matching is shown in the table 1.
Table 1: and a connecting meter for the ventilating pipe, the axial ventilating channel and the air inlet hole of the shell.
9. When the motor runs, the impeller 9 rotates along with the rotating shaft 6, continuous negative pressure is formed in the cavity between the rear end cover 5 and the housing 10, and cooling air flowing into the motor is sucked into the cavity through the end cover vent hole on the rear end cover 5 due to the action of air pressure difference and is discharged from the housing vent hole on the housing 10 through the driving of the impeller 9.
10. According to the different paths of the cooling air, the following six air paths are formed, as shown in fig. 9-11:
a1, A3, A5, A7, A9 and A11 shell air inlet holes, ventilation pipe, axial ventilation channel, end cover ventilation hole and shell exhaust hole form a first air path, as shown in figure 9;
b2, B4, B6, B8, B10 and B12 shell air inlet holes, ventilation pipe, axial ventilation channel, air gap, end cover ventilation hole and shell exhaust hole form a second air path, as shown in figure 9;
a2, A4, A6, A8, A10 and A12 shell air inlet holes, air gap, end cover vent holes and shell vent holes form a third air path, as shown in FIG. 10;
b1, B3, B5, B7, B9 and B11 shell air inlet holes, end cover vent holes and shell vent holes form a fourth air path, as shown in figure 10;
the end cover air inlet hole, the air gap, the end cover air vent and the housing air vent form a fifth air path, as shown in figure 11;
the shaft vent-end cap vent-housing vent constitutes a sixth air path, as shown in fig. 11.
11. The first air path and the second air path are mainly used for cooling and radiating stator iron cores, the third air path and the fourth air path are mainly used for cooling and radiating stator winding end parts at two sides, and the fifth air path and the sixth air path are mainly used for cooling and radiating rotors.
12. When the air is blown and cooled, the impeller rotates in the opposite direction, continuous positive pressure is formed in the cavity, and due to the action of air pressure difference, cooling air enters the cavity between the rear end cover and the housing through the housing exhaust hole on the impeller housing, and then enters the motor from the end cover vent hole on the rear end cover through the driving of the impeller, and the cooling air flows through the same path as the air draft cooling, but in the opposite direction.
Finally, it should be noted that: various modifications and alterations of this application may be made by those skilled in the art without departing from the spirit and scope of this application. Thus, it is intended that the present application also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (5)
1. A ventilation and heat dissipation structure of an air-cooled motor comprises a shell, a front end cover, a rear end cover, a stator core, windings, a rotating shaft, a rotor, an impeller and a housing; the two ends of the shell are respectively and fixedly connected with the front end cover and the rear end cover, and the rear end cover is fixedly connected with the housing; the stator core is fixedly arranged in the shell, a winding is embedded in a groove of the stator core, and protruding parts at two ends of the winding are respectively a first winding end part and a second winding end part; the rotor is fixedly arranged on the outer side of the rotating shaft, the rotor and the stator iron core are coaxially arranged, the impeller is fixedly arranged at the tail end of the rotating shaft, and the impeller is positioned between the rear end cover and the housing; it is characterized in that the method comprises the steps of,
the front end cover is provided with end cover air inlets in a distributed manner, the rear end cover is provided with end cover vent holes, and the housing is provided with housing vent holes; the two ends of the shell are circumferentially and symmetrically provided with shell air inlets, the yoke part of the stator core is axially provided with an axial air channel, the axial air channel is coplanar with the hole center of the shell air inlet, one end of the axial air channel is connected with a ventilation pipe, the other end of the axial air channel is provided with an opening, the ventilation pipes at the two ends of the axial air channel are alternately arranged, and the ventilation pipes are connected with the corresponding shell air inlets; the rotating shaft is provided with a rotating shaft vent hole in an axial penetrating way, and the tail part of the rotating shaft is provided with a cross-shaped hole in a radial way; an air gap is arranged between the rotor and the stator core.
2. The ventilation and heat dissipation structure of an air-cooled motor according to claim 1, wherein 2N casing air inlets are uniformly distributed at two ends of the casing in a circumferential direction, and 2N axial air channels are formed in a yoke portion of the stator core in an axial direction.
3. The ventilating and heat dissipating structure of an air-cooled motor of claim 1, wherein the end cap vent is a kidney-shaped vent.
4. The ventilating and heat dissipating structure of the air-cooled motor of claim 1, wherein heat dissipating ribs are distributed on the outer side of the housing.
5. The ventilating and heat dissipating structure of an air-cooled motor according to claim 1, wherein a lock nut for restricting the axial freedom of the impeller is fixed to the rotating shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310038862.2A CN116800005A (en) | 2023-01-13 | 2023-01-13 | Ventilating and radiating structure of air-cooled motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310038862.2A CN116800005A (en) | 2023-01-13 | 2023-01-13 | Ventilating and radiating structure of air-cooled motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116800005A true CN116800005A (en) | 2023-09-22 |
Family
ID=88047089
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310038862.2A Pending CN116800005A (en) | 2023-01-13 | 2023-01-13 | Ventilating and radiating structure of air-cooled motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116800005A (en) |
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2023
- 2023-01-13 CN CN202310038862.2A patent/CN116800005A/en active Pending
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