CN117811286B - Oil-cooled motor cooling system - Google Patents
Oil-cooled motor cooling system Download PDFInfo
- Publication number
- CN117811286B CN117811286B CN202410234819.8A CN202410234819A CN117811286B CN 117811286 B CN117811286 B CN 117811286B CN 202410234819 A CN202410234819 A CN 202410234819A CN 117811286 B CN117811286 B CN 117811286B
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- oil
- machine body
- shell
- way valve
- cooled motor
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- 238000001816 cooling Methods 0.000 title claims abstract description 57
- 239000007788 liquid Substances 0.000 claims abstract description 26
- 230000002093 peripheral effect Effects 0.000 claims abstract description 8
- 238000007789 sealing Methods 0.000 claims description 17
- 239000002904 solvent Substances 0.000 claims description 15
- 238000004891 communication Methods 0.000 claims description 13
- 230000017525 heat dissipation Effects 0.000 claims description 12
- 239000003795 chemical substances by application Substances 0.000 claims description 7
- 238000004939 coking Methods 0.000 abstract description 5
- 238000012423 maintenance Methods 0.000 abstract description 4
- 238000010008 shearing Methods 0.000 abstract description 3
- 239000012530 fluid Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
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- Motor Or Generator Cooling System (AREA)
Abstract
The invention discloses an oil-cooled motor cooling system, in particular to the technical field of motor cooling, which comprises a machine body, a main shaft, a shell which is detachably arranged on the machine body and is approximately cylindrical, a front end cover and a rear end cover which are detachably arranged at two ends of the machine body, wherein the front end cover is arranged on the machine body; a cooling channel for oil circulation is formed between the machine body and the shell, and the shell is provided with a liquid inlet and a liquid outlet which are communicated with the cooling channel; the machine body is characterized in that a plurality of first stop blocks are circumferentially arranged on the outer peripheral surface of the machine body at intervals, and the cross section of each first stop block is one or a combination of a plurality of triangles, trapezoids, arcs and rectangles. According to the invention, by arranging the first stop block, when oil flows through the first stop block, nonlinear shearing turbulence is formed, and the formed multiphase flow vortex solves the problem that the oil close to the machine body is easy to generate coking due to overhigh temperature, so that the stability and reliability of equipment operation are ensured. And the equipment maintenance period is also greatly increased.
Description
Technical Field
The invention relates to the technical field of motor heat dissipation, in particular to an oil-cooled motor heat dissipation system.
Background
The motor refers to an electromagnetic device for converting or transmitting electric energy according to the law of electromagnetic induction. Indicated in the circuit by the letter M. Its main function is to generate driving torque as power source for electric appliances or various machines.
During operation of the motor, a large amount of heat is generated due to friction of the bearing, resistance of the coil and magnetic resistance of the iron core, and total loss is about 20%. For high-power motors, a large amount of heat is generated in the running process, and the existing cooling modes comprise oil cooling, air cooling, water cooling and the like.
For the existing high-power motor, especially the new energy motor, the air cooling can not meet the heat dissipation requirement. The water-cooled motor has a plurality of inherent defects such as low boiling point, icing, corrosion, scale and the like, so that the water-cooled motor cannot meet the development requirement of a modern engine.
The existing oil-cooled motor is easy to generate larger temperature rise when the temperature of the existing oil-cooled motor is higher than-180 ℃ because of higher heat dissipation requirement and long-time operation, and oil close to the engine body is easy to coke, so that the cooling efficiency of the oil can be greatly reduced once the oil is coked.
Disclosure of Invention
The invention aims to solve the technical problems that: in order to overcome the defects in the prior art, the invention provides an oil cooling type motor heat dissipation system to solve the problems of coking of oil in the prior art and greatly reducing cooling efficiency.
The technical scheme adopted for solving the technical problems is as follows: the oil cooling type motor heat dissipation system comprises a machine body, a main shaft, a shell which is detachably arranged on the machine body and is approximately cylindrical, a front end cover and a rear end cover which are detachably arranged at two ends of the machine body; a cooling channel for oil circulation is formed between the machine body and the shell, and the shell is provided with a liquid inlet and a liquid outlet which are communicated with the cooling channel;
The machine body is characterized in that a plurality of first stop blocks are circumferentially arranged on the outer peripheral surface of the machine body at intervals, and the cross section of each first stop block is one or a combination of a plurality of triangles, trapezoids, arcs and rectangles.
Preferably, a plurality of second stoppers are circumferentially arranged on the inner peripheral surface of the housing at intervals, the second stoppers are located on an extension line connecting the axis of the machine body with the first stoppers, the cross section of the second stoppers is approximately right trapezoid, and the side of the second stoppers facing the first stoppers is arc-shaped.
Preferably, the shell is provided with a plurality of screws at intervals along the circumferential direction, the machine body is provided with a plurality of threaded holes at intervals along the circumferential direction, and the threaded holes are internally provided with internal threads matched with the screws.
Preferably, a seal is provided between the housing and the fuselage;
The sealing element comprises a first groove arranged on the machine body, a sealing ring matched with the first groove is arranged in the first groove, an interface agent is arranged between the first groove and the sealing ring, and a second groove matched with the upper part of the sealing ring is arranged on the shell.
Preferably, the front end cover and/or the rear end cover are/is mounted on the machine body through fasteners, the front end cover is provided with a plurality of first mounting portions at equal intervals along the circumferential direction, the first mounting portions are provided with mounting holes, the rear end cover is provided with a plurality of second mounting portions, and the second mounting portions at least comprise a plurality of screws.
Preferably, the body is provided with a power connection box.
Preferably, the liquid inlet is communicated with a four-way valve, the four-way valve is communicated with an oil source, a first pump body and a first electromagnetic valve are arranged on a communication pipeline of the oil source and the four-way valve, the liquid outlet is communicated with a recoverer, and a second electromagnetic valve is arranged on a communication pipeline of the liquid outlet and the recoverer.
Preferably, the four-way valve is communicated with a compressor through a pipeline, and a third electromagnetic valve is arranged on a communication pipeline of the four-way valve and the compressor.
Preferably, the four-way valve is communicated with a cooling oil solvent source through a pipeline, and a second pump body and a fourth electromagnetic valve are arranged on the four-way valve and the communication pipeline of the cooling oil solvent source.
Preferably, a detector is arranged on a communication pipeline between the liquid outlet and the recoverer.
The beneficial effects of the invention are as follows: the oil flows in from the liquid inlet and is discharged from the liquid outlet, and the oil flows through the cooling channel to take away heat generated by the motor. According to the invention, by arranging the first stop block, when oil flows through the first stop block, nonlinear shearing turbulence is formed, and the formed multiphase flow vortex solves the problem that the oil close to the machine body is easy to generate coking due to overhigh temperature, so that the stability and reliability of equipment operation are ensured. And the equipment maintenance period is also greatly increased. And through setting up first dog can also increase the area of contact of fuselage and fluid, further increase radiating efficiency. It should be emphasized that the motor is a mature prior art, and the improvement point of the present invention relates to the machine body and the oil cooling system only, and the specific shape and connection mode of other structures in the machine body are not repeated here.
Drawings
Fig. 1 is a schematic perspective view of an oil-cooled motor;
FIG. 2 is a schematic perspective view of an oil-cooled motor with a housing removed;
FIG. 3 is a cross-sectional view of an oil-cooled motor;
FIG. 4 is a cross-sectional view of an oil-cooled motor;
FIG. 5 is an enlarged view of a portion of FIG. 4 at A;
Fig. 6 is a schematic structural diagram of an oil-cooled motor heat dissipation system.
In the figure: 1. a body; 2. a housing; 21. a seal ring; 22. a liquid inlet; 23. a screw; 24. a liquid outlet; 3. a main shaft; 4. a front end cover; 41. a mounting hole; 5. a four-way valve; 6. a rear end cover; 61. a screw; 7. a power connection box; 81. a first stopper; 82. a second stopper; 83. cooling the oil solvent source; 84. an oil source; 85. a first pump body; 86. a first electromagnetic valve; 87. a void region; 88. a compressor; 89. a third electromagnetic valve; 810. a detector; 811. a recycler; 812. a second electromagnetic valve; 813. a fourth electromagnetic valve; 814. and a second pump body.
Detailed Description
In order to better understand the aspects of the present invention, the present invention will be described in further detail with reference to the accompanying drawings and detailed description.
The oil of the oil-cooled motor does not flow into the motor, only flows around the outer peripheral surface of the motor body, reduces the complexity of an oil path, and further reduces the production cost of the motor.
Examples:
As shown in fig. 1 to 6, the present embodiment provides an oil-cooled motor heat dissipation system, which comprises a machine body 1, a main shaft 3, a substantially cylindrical shell 2 detachably mounted on the machine body 1, a front end cover 4 detachably mounted on two ends of the machine body 1, and a rear end cover 6; a cooling channel for oil circulation is formed between the machine body 1 and the shell 2, and the shell 2 is provided with a liquid inlet 22 and a liquid outlet 24 which are communicated with the cooling channel;
Wherein, the outer peripheral surface of the machine body 1 is provided with a plurality of first stop blocks 81 at intervals along the circumferential direction, and the cross section of each first stop block 81 is one or a combination of a plurality of triangles, trapezoids, arcs and rectangles.
Specifically, oil flows in from the inlet 22 and exits from the outlet 24, and the oil flows through the cooling passages to remove heat generated by the motor. According to the invention, by arranging the first stop block 81, when oil flows through the first stop block 81, nonlinear shearing turbulence is formed, and the formed multiphase flow vortex solves the problem that the oil close to the machine body 1 is easy to generate coking due to overhigh temperature, so that the stability and reliability of equipment operation are ensured. And the equipment maintenance period is also greatly increased. Further, by providing the first stopper 81, the contact area between the body 1 and the oil can be increased, and the heat radiation efficiency can be further increased.
It should be emphasized that the motor is a mature prior art, and the improvement point of the present invention relates to the machine body 1 and the oil cooling system only, and the specific shape and connection manner of other structures in the machine body 1 are not repeated here.
Further, a plurality of second stoppers 82 are circumferentially arranged on the inner peripheral surface of the casing 2 at intervals, the second stoppers 82 are located on an extension line of a connection line between the axis of the machine body 1 and the first stoppers 81, the cross section of each second stopper 82 is approximately in a right trapezoid shape, the edge of each second stopper 82 facing the corresponding first stopper 81 is arc-shaped, the circumferential angles of the second stoppers 82 and the corresponding first stoppers 81 are the same, preferably, 8 first stoppers 81 are arranged at intervals, and an included angle between two adjacent first stoppers 81 is 45 degrees. Through setting up second dog 82, make the partial fluid that is close to shell 2 stay clearance district 87 under the effect of second dog 82 to solve the influence of clearance district 87 to radiating efficiency, simultaneously through setting up first dog 81 and second dog 82, make fluid when flowing through above-mentioned region, produce the multiphase flow vortex of symmetry, further with solve the fluid along circumference have the temperature gradient and then lead to the easy coking problem of higher fluid of temperature.
Further, the casing 2 is provided with a plurality of screws 23 at intervals along the circumferential direction, the machine body 1 is provided with a plurality of threaded holes at intervals along the circumferential direction, and the threaded holes are internally provided with internal threads matched with the screws 23. The shell 2 is detachably connected to the machine body 1 through the bolts 23, so that the shell 2 is convenient to maintain, and the service life of the shell 2 is prolonged. Specifically, the housing 2 is connected to the machine body 1 by a screw 23, and during maintenance, the front end cover 4 and the rear end cover 6 are removed, and the housing 2 can be removed by removing the screw 23.
Further, a sealing element is arranged between the shell 2 and the machine body 1; the sealing member is including setting up in the first recess of fuselage 1, first recess holding have with the sealing washer 21 of first recess adaptation, be provided with the interface agent between first recess and the sealing washer 21, shell 2 is provided with the second recess with sealing washer 21 upper portion adaptation, specifically, in the installation of shell 2, install the shell 2 in first recess firmly with the sealing washer 21 through the interface agent earlier, when shell 2 installs in place, the upper portion of sealing washer 21 is located the second recess just, preferably, be provided with the interface agent in the second recess, fix the position of sealing washer 21 through the interface agent, and the interface agent also is favorable to reinforcing the sealed effect of sealing washer.
Further, the front end cover 4 and/or the rear end cover 6 are/is mounted on the machine body 1 through fasteners, the front end cover 4 is provided with a plurality of first mounting portions at equal intervals along the circumferential direction, the first mounting portions are provided with mounting holes 41, the rear end cover 6 is provided with a plurality of second mounting portions, the second mounting portions at least comprise a plurality of screws 61, the front end cover 4 and the rear end cover 6 are mounted on the machine body 1 through fasteners, and specific mounting modes can refer to the connection modes of the shell 2 and the machine body 1 and are not repeated here. Because the first stop block 81 and the second stop block 82 are arranged in the oil cooling motor, the motor is easy to vibrate in the running process. Therefore, the stability of the body 1 is ensured by providing a plurality of second mounting portions and a plurality of first mounting portions.
Further, the body 1 is provided with a power receiving box 7.
Further, the four-way valve 5 is connected to the liquid inlet 22, the oil source 84 is connected to the four-way valve 5, the first pump 85 and the first solenoid valve 86 are provided on the connection pipe between the oil source 84 and the four-way valve 5, the recoverer 811 is connected to the liquid outlet 24, the second solenoid valve 812 is provided on the connection pipe between the liquid outlet 24 and the recoverer 811, specifically, the four-way valve 5 is provided with the first inlet, the second inlet, the third inlet and the fourth inlet, wherein the first inlet is connected to the oil source 84, the second inlet is connected to the recoverer 811, the first pump 85 is started and the first solenoid valve 86 is opened, so that the oil flows in from the liquid inlet 22 and flows out from the liquid outlet 24, the second solenoid valve 812 is opened, so that the oil flowing out enters the recoverer 811 to be recovered and cooled, and then is discharged into the oil source 84, thus realizing the circulation of the oil, and the recoverer 811 is a mature prior art, and the specific structure of the recoverer 811 is not described. Preferably, the device further comprises a processing center, the processing center is in telecommunication connection with each electromagnetic valve, the four-way valve, the compressor and the pump body and is used for controlling the on-off of each electrical element, the specific structure of the processing center and the connection mode of the processing center and each electrical element are mature prior art, and repeated redundant description is omitted herein, and the device can be used with reference to the prior art.
Further, the four-way valve 5 is communicated with the compressor 88 through a pipeline, a third electromagnetic valve 89 is arranged on a communication pipeline between the four-way valve 5 and the compressor 88, specifically, a third access port of the four-way valve 5 is communicated with the compressor 88, after the motor works for a period of time and stops working, the compressor 88 is started and the third electromagnetic valve 89 is opened, the four-way valve 5 is communicated with the third access port and the second access port, air is led to enter a cooling channel, oil is led out of the cooling channel, and the oil is discharged into the recoverer 811.
Further, the four-way valve 5 is communicated with the cooling oil solvent source 83 through a pipeline, and a second pump body 814 and a fourth electromagnetic valve 813 are arranged on a communication pipeline between the four-way valve 5 and the cooling oil solvent source 83. Specifically, the fourth inlet of the four-way valve 5 is communicated with the cooling oil solvent source 83, after the motor works for a period of time and stops working, the compressor 88 is started and the third electromagnetic valve 89 is opened, so that the four-way valve 5 is communicated with the third inlet and the second inlet, air enters the cooling channel and oil is extruded out of the cooling channel, the four-way valve 5 is communicated with the fourth inlet and the second inlet, the cooling oil solvent source 83 is discharged into the cooling channel without being discharged, cooling oil is prevented from being adsorbed in the cooling channel and going bad in the cooling channel, the subsequent cooling effect is further affected, finally, the oil discharging operation is repeated, the cooling oil solvent source 83 is discharged out of the cooling channel, and after the cooling oil solvent is completely discharged, the cooling oil solvent is continuously ventilated for a period of time, and can be one of alcohol and water, and the specific requirement is determined according to the type of the oil in the oil source 84.
Further, a detector 810 is provided in a communication pipe between the liquid outlet 24 and the recoverer 811, the detector 810 is used for detecting whether the discharged gas contains the cooling oil solvent, and when the cooling oil solvent is contained, ventilation is continued, and when the cooling oil solvent is not contained, the compressor 88 is turned off.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
In the present specification, the terms "upper, lower, inner, outer" and the like are established based on the positional relationship shown in the drawings, and the corresponding positional relationship may be changed according to the drawings, so that the terms are not to be construed as absolute limitation of the protection scope; moreover, relational terms such as "first" and "second", and the like, may be used solely to distinguish one element from another element having the same name, without necessarily requiring or implying any actual such relationship or order between such elements.
Claims (9)
1. The oil cooling type motor heat dissipation system is characterized by comprising a machine body (1), a main shaft (3), a shell (2) which is detachably arranged on the machine body (1) and is approximately cylindrical, front end covers (4) and rear end covers (6) which are detachably arranged at two ends of the machine body (1); a cooling channel for oil circulation is formed between the machine body (1) and the shell (2), and the shell (2) is provided with a liquid inlet (22) and a liquid outlet (24) which are communicated with the cooling channel;
The outer peripheral surface of the machine body (1) is provided with a plurality of first stop blocks (81) at intervals along the circumferential direction, and the cross section of each first stop block (81) is one or a combination of a plurality of triangles, trapezoids, arcs and rectangles;
The inner peripheral surface of the shell (2) is provided with a plurality of second check blocks (82) at intervals along the circumferential direction, the second check blocks (82) are positioned on an extension line of a connecting line of the axis of the machine body (1) and the first check blocks (81), the cross section of each second check block (82) is approximately in a right trapezoid shape, and the edge of each second check block (82) facing the corresponding first check block (81) is arc-shaped.
2. The oil-cooled motor cooling system according to claim 1, wherein the housing (2) is circumferentially spaced with a plurality of screws (23), the body (1) is circumferentially spaced with a plurality of threaded holes, and the threaded holes are internally provided with internal threads adapted to the screws (23).
3. -Oil-cooled motor heat dissipation system according to claim 1, characterized in that a seal is provided between the housing (2) and the fuselage (1);
The sealing element comprises a first groove arranged on the machine body (1), a sealing ring (21) matched with the first groove is arranged in the first groove, an interface agent is arranged between the first groove and the sealing ring (21), and a second groove matched with the upper part of the sealing ring (21) is arranged on the shell (2).
4. The oil-cooled motor cooling system according to claim 1, wherein the front end cover (4) and/or the rear end cover (6) are/is mounted on the machine body (1) through fasteners, the front end cover (4) is provided with a plurality of first mounting portions at equal intervals along the circumferential direction, the first mounting portions are provided with mounting holes (41), the rear end cover (6) is provided with a plurality of second mounting portions, and the second mounting portions at least comprise a plurality of screws (61).
5. An oil-cooled motor heat dissipation system according to claim 1, characterized in that the fuselage (1) is provided with an electrical connection box (7).
6. The oil-cooled motor cooling system according to any one of claims 1-5, wherein the liquid inlet (22) is communicated with a four-way valve (5), the four-way valve (5) is communicated with an oil source (84), a first pump body (85) and a first electromagnetic valve (86) are arranged on a communication pipeline between the oil source (84) and the four-way valve (5), the liquid outlet (24) is communicated with a recoverer (811), and a second electromagnetic valve (812) is arranged on a communication pipeline between the liquid outlet (24) and the recoverer (811).
7. The oil-cooled motor cooling system according to claim 6, wherein the four-way valve (5) is communicated with a compressor (88) through a pipeline, and a third electromagnetic valve (89) is arranged on a communication pipeline between the four-way valve (5) and the compressor (88).
8. The oil-cooled motor cooling system according to claim 7, wherein the four-way valve (5) is communicated with a cooling oil solvent source (83) through a pipeline, and a second pump body (814) and a fourth electromagnetic valve (813) are arranged on the communication pipeline between the four-way valve (5) and the cooling oil solvent source (83).
9. The oil-cooled motor heat dissipation system according to claim 8, characterized in that a detector (810) is provided on a communication pipe between the liquid outlet (24) and the recoverer (811).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410234819.8A CN117811286B (en) | 2024-03-01 | 2024-03-01 | Oil-cooled motor cooling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410234819.8A CN117811286B (en) | 2024-03-01 | 2024-03-01 | Oil-cooled motor cooling system |
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| Publication Number | Publication Date |
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| CN117811286A CN117811286A (en) | 2024-04-02 |
| CN117811286B true CN117811286B (en) | 2024-05-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410234819.8A Active CN117811286B (en) | 2024-03-01 | 2024-03-01 | Oil-cooled motor cooling system |
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| CN (1) | CN117811286B (en) |
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| CN117811286A (en) | 2024-04-02 |
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