CN110943576A - Non-inductive motor - Google Patents

Non-inductive motor Download PDF

Info

Publication number
CN110943576A
CN110943576A CN201911101864.1A CN201911101864A CN110943576A CN 110943576 A CN110943576 A CN 110943576A CN 201911101864 A CN201911101864 A CN 201911101864A CN 110943576 A CN110943576 A CN 110943576A
Authority
CN
China
Prior art keywords
motor
motor shaft
fan
axial
airflow channel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201911101864.1A
Other languages
Chinese (zh)
Other versions
CN110943576B (en
Inventor
张伟
张磊
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Supersonic Intelligent Technology Zhejiang Co Ltd
Original Assignee
Supersonic Intelligent Technology Zhejiang Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Supersonic Intelligent Technology Zhejiang Co Ltd filed Critical Supersonic Intelligent Technology Zhejiang Co Ltd
Priority to CN201911101864.1A priority Critical patent/CN110943576B/en
Publication of CN110943576A publication Critical patent/CN110943576A/en
Application granted granted Critical
Publication of CN110943576B publication Critical patent/CN110943576B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K9/00—Arrangements for cooling or ventilating
    • H02K9/10—Arrangements for cooling or ventilating by gaseous cooling medium flowing in closed circuit, a part of which is external to the machine casing
    • 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
    • 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
    • H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil

Abstract

The invention discloses a non-inductive motor, comprising: the motor comprises a motor shell, a motor shaft and a cooling fan; the motor shaft rotates relative to the motor shell; the heat radiation fan is sleeved on the motor shaft; the motor shell is provided with an air inlet and an air outlet; the heat radiation fan is a centrifugal fan; the heat radiation fan rotates to push airflow to enter the motor shell from the air inlet and to be discharged from the air outlet; the motor shaft is provided with an axial airflow channel extending along the axial direction of the motor shaft and a radial airflow channel extending along the radial direction of the motor shaft; one end of the axial airflow channel is communicated to one end of the radial airflow channel; the other end of the axial airflow channel is communicated to the outside of the motor shell; the other end of the radial airflow channel is communicated to the inside of the motor shell; the heat dissipation fan and the axial flow fan jointly push airflow from the outside of the motor shell to the inside of the motor shell through the axial airflow channel, the radial airflow channel and the vent hole. The invention has the advantage of good heat dissipation effect.

Description

Non-inductive motor
Technical Field
The present invention relates to an electric machine.
Background
The motor generally includes a rotor, a stator, a heat dissipation fan, and a motor case. The motor usually adopts and promotes the air current motion through radiator fan to dispel the heat to the motor, but the radiating effect is not ideal.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides the motor which has a better heat dissipation effect.
In order to achieve the above object, the present invention adopts the following technical solutions:
an electric machine cooling system comprising: the system comprises a motor, a condenser, an evaporator, a liquid storage tank for storing a refrigerant, a liquid outlet pipeline, a liquid inlet pipeline and a liquid return pipeline; the motor comprises a motor shell; the evaporator is arranged in the motor shell; the condenser and the liquid storage tank are arranged outside the motor shell; the height of the condenser is higher than that of the liquid storage tank; the height of the liquid storage tank is higher than that of the evaporator; the liquid inlet pipeline is communicated to the bottom of the liquid storage tank and the evaporator; the liquid outlet pipeline is communicated to the top of the condenser and the evaporator; the liquid return pipeline is communicated with the bottom of the condenser and the top of the liquid storage tank; when the temperature in the motor shell is higher than the temperature outside the motor shell, the refrigerant in the evaporator is heated and vaporized and enters the condenser along the liquid outlet pipeline; the condenser exchanges heat with the outside air, and the refrigerant in the condenser is cooled and liquefied and enters the liquid storage tank along the liquid return pipeline under the action of gravity; the refrigerant in the liquid storage tank enters the evaporator along the liquid inlet pipeline under the action of gravity; the refrigerant contained in the liquid storage tank is petroleum ether.
Further, the evaporator is annular; the motor shaft of the motor passes through the evaporator.
Further, the condenser is fixed to an outer surface of the motor case.
Further, the motor case includes: the lower end cover is penetrated by one end, used for outputting, of a motor shaft of the power supply machine; the evaporator is mounted to the lower end cap.
Further, the motor casing still includes: the upper end cover is exposed at the other end of the motor shaft of the power supply motor, and the middle sleeve part surrounds the motor shaft of the motor; the middle sleeve part is arranged between the upper end cover and the lower end cover and is connected with the upper end cover and the lower end cover.
Further, a heat insulation pad is arranged between the condenser and the motor shell.
Further, the condenser is fixed to the intermediate sleeve portion.
Further, the liquid reservoir is fixed to an outer surface of the motor case.
Further, the liquid reservoir is fixed to the middle sleeve portion.
Further, a motor shaft of the motor is provided with a cooling fan; the middle sleeve part is provided with an air outlet for heat dissipation.
A non-induction machine comprising: the motor comprises a motor shell, a motor shaft and a cooling fan; the motor shaft rotates relative to the motor shell; the heat radiation fan is sleeved on the motor shaft; the motor shell is provided with an air inlet and an air outlet; the heat radiation fan is a centrifugal fan; the heat radiation fan rotates to push airflow to enter the motor shell from the air inlet and to be discharged from the air outlet;
the motor shaft is provided with an axial airflow channel extending along the axial direction of the motor shaft and a radial airflow channel extending along the radial direction of the motor shaft; one end of the axial airflow channel is communicated to one end of the radial airflow channel; the other end of the axial airflow channel is communicated to the outside of the motor shell; the other end of the radial airflow channel is communicated to the inside of the motor shell; one end of the motor shaft for outputting is defined as the front end of the motor shaft; the other end of the motor shaft is defined as the rear end of the motor shaft; the front end of the motor shaft and the rear end of the motor shaft are both exposed out of the motor shell;
the non-induction motor also comprises an axial flow fan used for pushing airflow to enter the axial airflow channel from the outside of the motor shell; the axial flow fan is arranged outside the motor shell and fixed to the rear end of the motor shaft; the axial flow fan includes: the fan comprises a bottom plate, an outer ring and a plurality of axial flow fan blades; the axial flow fan is of a hollow structure; the bottom plate is provided with a bottom hole for a motor shaft to pass through; the bottom plate is fixed to the motor shaft; the outer ring is fixed to the bottom plate in a ring shape; a plurality of axial flow fan blades fixed to an inner wall surface of the outer ring;
the heat radiation fan includes: a central hub for fixing the heat radiation fan and a plurality of centrifugal fan blades for generating air flow; a plurality of centrifugal fan blades surrounding the central hub; the center hub is fixed to the motor shaft; the central hub part is provided with a vent hole; the vent holes are aligned with the radial airflow channels;
the heat dissipation fan and the axial flow fan jointly push airflow from the outside of the motor shell to the inside of the motor shell through the axial airflow channel, the radial airflow channel and the vent hole.
Further, the number of radial air flow channels is 2; the two radial gas flow channels are arranged coaxially.
Furthermore, a ventilation gap for air flow to pass through is formed between two adjacent centrifugal fan blades; the vent holes are aligned with the vent gaps.
Further, the number of vent holes is 2; the two vent holes are symmetrical about the center of the motor shaft.
Further, the vent hole is positioned between the top and the bottom of the centrifugal fan blade.
Further, the air vent is located between both ends of the centrifugal fan blade in the direction of the rotational axis of the motor shaft.
Further, the motor case includes: a lower end cover for exposing the front end of the motor shaft, a middle sleeve part surrounding the motor shaft and an upper end cover for exposing the rear end of the motor shaft; the middle sleeve part is arranged between the upper end cover and the lower end cover and is connected with the upper end cover and the lower end cover.
Furthermore, the upper end cover and the middle sleeve part jointly form an air inlet.
Further, the middle sleeve part forms an air outlet.
Further, the heat dissipation fan is aligned in height with the air outlet.
The invention has the beneficial effect of better heat dissipation effect.
Drawings
FIG. 1 is a schematic view of a motor cooling system of the present invention;
FIG. 2 is a schematic diagram of a condenser of the motor cooling system of FIG. 1;
FIG. 3 is a schematic view of an evaporator of the motor cooling system of FIG. 1;
FIG. 4 is a schematic view of a motor shaft and a heat sink fan of the motor cooling system of FIG. 1;
FIG. 5 is a schematic view of a heat dissipation fan of the structure of FIG. 4;
FIG. 6 is a schematic view of an axial fan of the motor cooling system of FIG. 1;
fig. 7 is a sectional view of a motor shaft of the structure of fig. 4.
The motor cooling system 100, the motor 10, the motor housing 11, the upper end cap 111, the lower end cap 112, the middle sleeve portion 113, the air inlet 11a, the air outlet 11b, the motor shaft 12, the axial airflow channel 121, the radial airflow channel 122, the heat dissipation fan 13, the central hub portion 131, the vent hole 1311, the centrifugal fan blade 132, the axial flow fan 14, the bottom plate 141, the bottom hole 1411, the outer ring 142, the axial flow fan blade 143, the condenser 20, the evaporator 30, the liquid storage tank 40, the liquid outlet pipe 50, the liquid inlet pipe 60, and the liquid return pipe 70.
Detailed Description
The invention is described in detail below with reference to the figures and the embodiments.
As shown in fig. 1 to 7, an electric machine cooling system 100 includes: motor 10, condenser 20, evaporator 30, a liquid storage tank 40 for storing refrigerant, liquid outlet line 50, liquid inlet line 60, and liquid return line 70. The motor cooling system may also be regarded as or referred to as an electric motor, i.e. the condenser, the evaporator, the liquid reservoir, the liquid outlet line, the liquid inlet line and the liquid return line are all part of the electric motor. Or may be described as motor 10 including condenser 20, evaporator 30, receiver 40 for storing refrigerant, outlet line 50, inlet line 60, and return line 70.
The motor 10 includes a motor housing 11, a motor shaft 12, and a heat dissipation fan 13. The motor shaft 12 rotates relative to the motor housing 11. The heat radiation fan 13 is fitted to the motor shaft 12.
The motor case 11 is formed with an air inlet 11a and an air outlet 11 b. The heat radiation fan 13 is a centrifugal fan. The heat dissipation fan 13 rotates to push the airflow from the air inlet 11a into the motor housing 11 and out of the air outlet 11 b. As an alternative embodiment, the heat dissipation fan 13 may not be provided, and the condenser 20, the evaporator 30, the liquid storage tank 40 for storing the refrigerant, the liquid outlet pipe 50, the liquid inlet pipe 60 and the liquid return pipe 70 may be used to dissipate heat of the motor 10.
The evaporator 30 is disposed in the motor case 11. The condenser 20 and the receiver tank 40 are disposed outside the motor case 11. The height of the condenser 20 is higher than the height of the receiver tank 40. The height of the reservoir 40 is higher than the height of the evaporator 30. An inlet line 60 communicates to the bottom of the reservoir tank 40 and the evaporator 30. An outlet line 50 communicates to the top of the condenser 20 and to the evaporator 30. A return line 70 communicates the bottom of the condenser 20 with the top of the receiver tank 40.
When the temperature inside the motor housing 11 is higher than the temperature outside the motor housing 11, the refrigerant inside the evaporator 30 is heated and vaporized, and enters the condenser 20 along the liquid outlet line 50. The condenser 20 exchanges heat with the outside air, and the refrigerant in the condenser 20 is cooled and liquefied and enters the liquid storage tank 40 along the liquid return pipeline 70 under the action of gravity. The refrigerant in the receiver 40 enters the evaporator 30 by gravity along the inlet line 60. The refrigerant contained in the reservoir 40 is petroleum ether. As a specific embodiment, petroleum ether having a boiling range of 60 to 90 is used. The temperature in the motor housing can easily reach or approach 90 degrees when the motor is in operation. The petroleum ether is gasified, evaporated and absorbs heat under the influence of high temperature in the motor. The low temperature liquid petroleum ether due to the condenser 20 and the receiver 40 falls down the inlet line 60 under the influence of gravity. The gaseous petroleum ether in the evaporator 30 rises along the outlet line 50 into the evaporator 30. The evaporator 30 exchanges heat with the external normal temperature environment, and the liquefied petroleum ether liquid falls under the action of gravity and enters the liquid storage tank 40 through the liquid return pipeline 70. Liquid low-temperature petroleum ether in the liquid storage tank 40 enters the evaporator 30 through the liquid inlet pipeline 60 under the action of gravity to realize heat circulation between the inside and the outside of the motor shell 11, so that the temperature of the inside of the motor shell 11 is reduced, and the circulating heat dissipation and cooling effects are good. The refrigerant circulation is realized by gravity without additionally arranging a compression pump, and the refrigerant circulation device is simple in structure and low in cost. Valves may be provided in the liquid outlet line 50, liquid inlet line 60 and liquid return line 70 as desired.
In a preferred embodiment, the evaporator 30 is annular. The motor shaft 12 of the motor 10 passes through the evaporator 30. The evaporator 30 is disposed downstream of the airflow in the airflow direction. The temperature of the cold air gradually increases in the process from the upstream to the downstream. The cooling effect is reduced and the evaporator 30 is disposed downstream with a better cooling effect. The evaporator 30 is located below the stator.
As a specific embodiment, the motor case 11 includes: an upper end cap 111, a lower end cap 112 and a middle sleeve portion 113. One end of the motor shaft 12 of the motor 10 for output passes through the lower end cover 112. The evaporator 30 is mounted to the lower end cap 112. And an upper end cover 111 exposed from the other end of the motor shaft 12 of the motor 10. The middle sleeve portion 113 surrounds the motor shaft 12 of the motor 10. The middle sheath portion 113 is disposed between the upper and lower end caps 111 and 112 and connects the upper and lower end caps 111 and 112.
As a specific embodiment, the condenser 20 is fixed to an outer surface of the motor case 11. The reservoir tank 40 is fixed to the outer surface of the motor case 11. A heat insulating pad is provided between the condenser 20 and the motor case 11. The heat insulating pad realizes heat insulation between the condenser 20 and the motor case 11. Specifically, the condenser 20 is fixed to the middle sleeve portion 113. The reservoir tank 40 is fixed to the middle sleeve portion 113.
As a specific embodiment, the middle sleeve portion 113 is formed with an air outlet 11b for heat dissipation. The upper end cap 111 and the middle sleeve portion 113 together constitute the intake port 11 a.
As a specific embodiment, the motor 10 is a non-induction motor.
As a preferred embodiment, the motor shaft 12 is formed with an axial air flow passage 121 and a radial air flow passage 122. The axial air flow passage 121 extends in the axial direction of the motor shaft 12. The radial air flow passage 122 extends in the radial direction of the motor shaft 12.
One end of the axial flow passage 121 communicates to one end of the radial flow passage 122. The other end of the axial air flow passage 121 communicates to the outside of the motor case 11. The other end of the radial air flow passage 122 communicates to the inside of the motor case 11. The end of the motor shaft 12 for output is defined as the front end of the motor shaft 12. The other end of the motor shaft 12 is defined as a rear end of the motor shaft 12. The front end of the motor shaft 12 and the rear end of the motor shaft 12 are exposed out of the motor case 11.
As a preferred embodiment, the motor 10 further comprises an axial fan 14 for propelling an air flow from outside the motor casing 11 into the axial air flow channel 121. The axial flow fan 14 is disposed outside the motor case 11 and fixed to a rear end of the motor shaft 12. The axial flow fan 14 includes: a bottom plate 141, an outer ring 142 and a plurality of axial flow fan blades 143. The axial flow fan 14 has a hollow structure. The base plate 141 is formed with a bottom hole 1411 through which the motor shaft 12 passes. The base plate 141 is fixed to the motor shaft 12. The outer ring 142 is fixed to the base plate 141 in a ring shape. A plurality of axial flow blades 143 are fixed to an inner wall surface of the outer ring 142.
The axial flow fan adopting the hollow structure avoids blocking the axial airflow channel 121, is convenient for guiding airflow to directly enter the axial airflow channel 121 through the hollow structure, and improves the airflow velocity.
As a preferred embodiment, the heat radiation fan 13 includes: a center hub 131 for fixing the heat radiating fan 13 and a plurality of centrifugal blades 132 for generating an air flow. A plurality of centrifugal fan blades 132 surround the central hub 131. The center hub 131 is fixed to the motor shaft 12. The central hub 131 is formed with a vent 1311. The vent holes 1311 are aligned with the radial airflow passages 122. The heat dissipation fan 13 and the axial flow fan 14 jointly push the airflow from the outside of the motor case 11 into the inside of the motor case 11 via the axial airflow passage 121, the radial airflow passage 122, and the vent holes 1311.
Under the original airflow path, the new airflow path is added, which is beneficial to improving the airflow and improving the heat dissipation effect. The direct entry of the cool air into the interior of the motor shaft 12 helps to improve the heat dissipation from the motor shaft and rotor.
As a specific embodiment, the number of radial air flow channels 122 is 2. The two radial gas flow channels 122 are arranged coaxially. The number of vent holes 1311 is 2. The two vent holes 1311 are symmetrical about the center of the motor shaft 12. Has better dynamic balance effect.
A ventilation gap for airflow is formed between two adjacent centrifugal fan blades 132. The vent holes 1311 are aligned with the vent gaps.
In a preferred embodiment, the air vent 1311 is located between the top and bottom of the centrifugal fan blades 132. The air hole 1311 is located between both ends of the centrifugal fan blade 132 in the rotational axis direction of the motor shaft 12. The centrifugal fan can conveniently extract the air in the radial airflow channel 122, and the extraction efficiency is high.
The front end of the motor shaft 12 is exposed out of the lower end cover 112. The middle sleeve portion 113 surrounds the motor shaft 12. The rear end of the motor shaft 12 is exposed from the upper cover 111. The middle sheath portion 113 is disposed between the upper and lower end caps 111 and 112 and connects the upper and lower end caps 111 and 112.
The middle sleeve portion 113 forms an air outlet 11 b. The upper end cap 111 and the middle sleeve portion 113 together constitute the intake port 11 a. The heat dissipation fan 13 is aligned in height with the air outlet 11 b.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It should be understood by those skilled in the art that the above embodiments do not limit the present invention in any way, and all technical solutions obtained by using equivalent alternatives or equivalent variations fall within the scope of the present invention.

Claims (10)

1. A non-induction machine comprising: the motor comprises a motor shell, a motor shaft and a cooling fan; the motor shaft rotates relative to the motor housing; the heat radiation fan is sleeved on the motor shaft; the motor shell is provided with an air inlet and an air outlet; the heat radiation fan is a centrifugal fan; the heat radiation fan rotates to push airflow to enter the motor shell from the air inlet and to be discharged from the air outlet; it is characterized in that the preparation method is characterized in that,
the motor shaft is formed with an axial airflow passage extending in the axial direction of the motor shaft and a radial airflow passage extending in the radial direction of the motor shaft; one end of the axial airflow channel is communicated to one end of the radial airflow channel; the other end of the axial airflow channel is communicated to the outside of the motor shell; the other end of the radial airflow channel is communicated to the inside of the motor shell; one end of the motor shaft for outputting is defined as the front end of the motor shaft; the other end of the motor shaft is defined as the rear end of the motor shaft; the front end of the motor shaft and the rear end of the motor shaft are exposed out of the motor shell;
the non-inductive motor also comprises an axial flow fan used for pushing airflow to enter the axial airflow channel from the outside of the motor shell; the axial flow fan is arranged outside the motor shell and fixed to the rear end of the motor shaft; the axial flow fan includes: the fan comprises a bottom plate, an outer ring and a plurality of axial flow fan blades; the axial flow fan is of a hollow structure; the bottom plate is provided with a bottom hole for the motor shaft to pass through; the base plate is fixed to the motor shaft; the outer ring is fixed to the bottom plate in a ring shape; a plurality of axial flow blades fixed to an inner wall surface of the outer ring;
the heat dissipation fan includes: a central hub for fixing the heat dissipation fan and a plurality of centrifugal fan blades for generating air flow; a plurality of said centrifugal fan blades encircling said central hub; the center hub is fixed to the motor shaft; the central hub is formed with a vent hole; the vent holes are aligned with the radial airflow channels;
the heat dissipation fan and the axial flow fan jointly push airflow from the outside of the motor casing to the inside of the motor casing through the axial airflow channel, the radial airflow channel and the vent hole.
2. The non-induction machine according to claim 1,
the number of the radial airflow channels is 2; the two radial gas flow channels are arranged coaxially.
3. The non-induction machine according to claim 1,
a ventilation gap for air flow to pass through is formed between every two adjacent centrifugal fan blades; the vent hole is aligned with the vent gap.
4. The non-induction machine according to claim 1,
the number of the vent holes is 2; the two vent holes are symmetrical about the center of the motor shaft.
5. The non-induction machine according to claim 1,
the vent hole is positioned between the top and the bottom of the centrifugal fan blade.
6. The non-inductive motor according to claim 5,
in the direction of the rotation axis of the motor shaft, the vent hole is positioned between two ends of the centrifugal fan blade.
7. The non-induction machine according to claim 1,
the motor casing includes: the motor comprises a lower end cover for exposing the front end of the motor shaft, a middle sleeve part surrounding the motor shaft and an upper end cover for exposing the rear end of the motor shaft; the middle sleeve part is arranged between the upper end cover and the lower end cover and is connected with the upper end cover and the lower end cover.
8. The non-induction machine according to claim 7,
the upper end cover and the middle sleeve part jointly form the air inlet.
9. The non-induction machine according to claim 7,
the middle sleeve part forms the air outlet.
10. The non-induction machine according to claim 1,
the heat dissipation fan is aligned in height with the air outlet.
CN201911101864.1A 2019-11-12 2019-11-12 Non-inductive motor Active CN110943576B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911101864.1A CN110943576B (en) 2019-11-12 2019-11-12 Non-inductive motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911101864.1A CN110943576B (en) 2019-11-12 2019-11-12 Non-inductive motor

Publications (2)

Publication Number Publication Date
CN110943576A true CN110943576A (en) 2020-03-31
CN110943576B CN110943576B (en) 2021-09-28

Family

ID=69906833

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201911101864.1A Active CN110943576B (en) 2019-11-12 2019-11-12 Non-inductive motor

Country Status (1)

Country Link
CN (1) CN110943576B (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011078791A1 (en) * 2011-07-07 2013-01-10 Siemens Ag Electrical machine e.g. electric motor has hollow shaft which is provided with radially directed passage on the ventilation side portion so that inner coolant of the radial fan is flowed through radially directed passage
CN204835770U (en) * 2014-06-30 2015-12-02 发那科株式会社 Motor
CN106877576A (en) * 2017-04-17 2017-06-20 叶露微 A kind of totally enclosed motor
CN107612217A (en) * 2016-07-11 2018-01-19 天津辰宝机电科技有限公司 A kind of energy-efficient AC/DC motor
CN208128040U (en) * 2018-04-12 2018-11-20 肇庆宏利机械设备有限公司 A kind of motor
CN209462157U (en) * 2019-03-26 2019-10-01 爱尔达电气有限公司 A kind of high-efficiency asynchronous motor

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011078791A1 (en) * 2011-07-07 2013-01-10 Siemens Ag Electrical machine e.g. electric motor has hollow shaft which is provided with radially directed passage on the ventilation side portion so that inner coolant of the radial fan is flowed through radially directed passage
CN204835770U (en) * 2014-06-30 2015-12-02 发那科株式会社 Motor
CN107612217A (en) * 2016-07-11 2018-01-19 天津辰宝机电科技有限公司 A kind of energy-efficient AC/DC motor
CN106877576A (en) * 2017-04-17 2017-06-20 叶露微 A kind of totally enclosed motor
CN208128040U (en) * 2018-04-12 2018-11-20 肇庆宏利机械设备有限公司 A kind of motor
CN209462157U (en) * 2019-03-26 2019-10-01 爱尔达电气有限公司 A kind of high-efficiency asynchronous motor

Also Published As

Publication number Publication date
CN110943576B (en) 2021-09-28

Similar Documents

Publication Publication Date Title
CN1685590B (en) Electric machine with cooling system
US20200006997A1 (en) Fan motor
US9543807B2 (en) Electric motor
CN211508791U (en) Motor casing and motor using same
CN115395719A (en) Energy storage flywheel with vacuum environment inside and energy storage equipment
JP5388961B2 (en) Rotating electric machine
CN110943576B (en) Non-inductive motor
CN111049324B (en) Motor cooling system
CN208634997U (en) A kind of headlight for vehicles assembly and its LED headlight light bulb assembly
CN102223010A (en) Conducting and radiating energy-saving motor
CN113236572B (en) High-temperature pump
CN105356672B (en) High-speed electric expreess locomotive evaporation cooling construction
JP6246388B2 (en) Rotating electric machine
JP2023061299A (en) Cooling device of in-wheel motor
CN213178890U (en) Heat dissipation device and refrigeration equipment
JPH0974716A (en) Rotor cooling structure of motor
CN209659056U (en) A kind of graphene radiating motor that applicability is wide
CN209435050U (en) A kind of motor with heat sinking function
CN111005885A (en) Novel high-speed fan structure
US20110110801A1 (en) Fluid pump for delivering cooled working fluid in an engine cooling system
CN219626587U (en) Fixed anode cooling device
CN216020649U (en) Motor for food processing machine and food processing machine using motor
CN210780410U (en) Air-cooled motor
CN214543997U (en) Heat dissipation type automobile starting motor
CN113794311B (en) Heat dissipation end cover and motor

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant