CN116760238B - Oil-cooled motor cooling system - Google Patents
Oil-cooled motor cooling system Download PDFInfo
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- CN116760238B CN116760238B CN202311009645.7A CN202311009645A CN116760238B CN 116760238 B CN116760238 B CN 116760238B CN 202311009645 A CN202311009645 A CN 202311009645A CN 116760238 B CN116760238 B CN 116760238B
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- 238000001816 cooling Methods 0.000 title claims abstract description 241
- 230000017525 heat dissipation Effects 0.000 claims abstract description 39
- 238000011156 evaluation Methods 0.000 claims abstract description 26
- 230000007246 mechanism Effects 0.000 claims abstract description 12
- 230000002159 abnormal effect Effects 0.000 claims abstract description 8
- 230000006698 induction Effects 0.000 claims description 19
- 230000008859 change Effects 0.000 claims description 18
- 230000005540 biological transmission Effects 0.000 claims description 16
- 238000013210 evaluation model Methods 0.000 claims description 14
- 230000001105 regulatory effect Effects 0.000 claims description 10
- 230000001276 controlling effect Effects 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 6
- 230000008054 signal transmission Effects 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 5
- 238000010586 diagram Methods 0.000 claims description 4
- 238000001914 filtration Methods 0.000 claims description 3
- 230000000007 visual effect Effects 0.000 claims description 3
- 230000002618 waking effect Effects 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 description 14
- 238000005265 energy consumption Methods 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- 230000005855 radiation Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/34—Testing dynamo-electric machines
- G01R31/343—Testing dynamo-electric machines in operation
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
- H02K11/25—Devices for sensing temperature, or actuated thereby
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
- H02K5/203—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium specially adapted for liquids, e.g. cooling jackets
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/02—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
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
- H02K9/193—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil with provision for replenishing the cooling medium; with means for preventing leakage of the cooling medium
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
The invention discloses an oil-cooled motor heat dissipation system, and relates to the technical field of motors. In order to solve the problems that in the prior art, intelligent monitoring and evaluation cannot be performed on a motor, abnormal conditions of the motor cannot be timely alarmed, the labor cost is high, and the intelligent level is low; the oil-cooled motor heat dissipation system comprises an oil-cooled motor and a heat dissipation mechanism, wherein one side of the oil-cooled motor is clamped with the heat dissipation mechanism, the oil-cooled motor comprises an oil-cooled shell and a motor body, the heat dissipation mechanism comprises a heat dissipation controller and a cooling device, and one side of the heat dissipation controller is connected with the cooling device through a pipeline; the motor body performance is effectively evaluated based on the operation data, so that the motor body performance is effectively evaluated, the motor body is correspondingly recovered in loss and maintained according to the evaluation result, the motor body performance is effectively evaluated, and the motor body operation state is strictly and effectively controlled.
Description
Technical Field
The invention relates to the technical field of oil-cooled motors, in particular to an oil-cooled motor heat dissipation system.
Background
An electric motor refers to an electromagnetic device that converts or transmits electric energy according to the law of electromagnetic induction, or converts one form of electric energy into another form of electric energy. An electric motor converts electrical energy into mechanical energy. With respect to oil-cooled motors, there have been related patents; for example, chinese patent publication No. CN211930441U discloses a cycloid pump driven directly by an oil-cooled motor, which includes a casing and an output shaft; the cycloid pump comprises a pump shell, a pump oil cavity is arranged in the pump shell, an inner rotor and an outer rotor which are matched with each other for use are arranged in the pump oil cavity, and the inner rotor is fixedly connected with a connecting shaft; the driving end of the connecting shaft penetrates out of the pump shell and is fixedly connected with the output rotating shaft; the application utilizes the motor rotor to directly drive the cycloid pump to work, effectively simplifies the structure of the oil cooling motor and improves the reliability of the oil cooling motor under the condition of ensuring the cooling effect.
The above patent, while simplifying the structure of the oil-cooled motor, still has the following problems:
in the prior art, a pump oil cavity is arranged in a pump shell, however, an oil way cooling path is shorter, so that cooling oil in the cooling path cannot be effectively cooled when the motor is used for a long time, the cooling effect is reduced, and the damage caused by the temperature rise when the motor is used for a long time is caused;
in the prior art, cooling oil is usually cooled based on a heat exchanger, however, heat exchange of the heat exchanger has heat loss, so that the condition of poor heat exchange effect is caused, air cooling cannot be matched, and the cooling quality is low;
in the prior art, intelligent monitoring and evaluation cannot be performed on the motor, abnormal conditions of the motor cannot be timely alarmed, labor cost is high, and intelligent level is low.
Disclosure of Invention
The invention aims to provide an oil cooling type motor heat dissipation system, which is used for analyzing the change of the rotating speed and the temperature of a motor body based on operation data, so that the performance of the motor body is effectively evaluated, and when the performance of the motor body is abnormal, the motor body is correspondingly processed in time, so that the monitoring and management effects of the motor body are improved, and the problems in the background art are solved.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the oil-cooled motor cooling system comprises an oil-cooled motor and a cooling mechanism, wherein one side of the oil-cooled motor is clamped with the cooling mechanism, the oil-cooled motor comprises an oil-cooled shell and a motor body, the motor body is placed in the oil-cooled shell, one end of the oil-cooled shell is rotationally connected with an outer output shaft through a bearing, the outer output shaft is fixedly connected with an output shaft on one side of the motor body, the cooling mechanism comprises a cooling controller and a cooling device, and one side of the cooling controller is connected with the cooling device through a pipeline;
the oil cooling shell is internally provided with at least one cooling oil passage, the cooling oil passage is spirally wound on the side wall of the oil cooling shell, one side of the cooling oil passage is respectively communicated with the oil passage connecting frame, and one side surface of the oil passage connecting frame is communicated with the cooling device;
the cooling oil channels are arranged in parallel, each cooling oil channel is provided with a flow regulating valve, and a temperature sensor is arranged in the motor corresponding to each cooling oil channel; the cooling control unit includes:
the temperature distribution determining module is used for marking the temperature data detected by the temperature sensor of each cooling oil duct in the interval area of the corresponding temperature sensor, obtaining the temperature data of each point in the interval area through an interpolation method, and reflecting the temperature data on the three-dimensional motor model to form a temperature distribution diagram of the motor;
the oil duct required region determining module is used for eliminating a cooling oil duct with temperature data not exceeding the preset threshold, then taking a region with temperature data exceeding the preset threshold as a region to be cooled, carrying out temperature change gradient analysis on the region to be cooled, and carrying out visual display on the region to be cooled on the three-dimensional motor model from low to high by adopting red from light to deep according to the temperature data;
the flow execution module is used for determining the flow distribution requirement of the cooling oil duct of the region to be cooled according to the temperature change gradient of the region to be cooled, generating a control instruction based on the flow distribution requirement, controlling the flow regulating valve of the cooling oil duct of the region to be cooled, and realizing reasonable distribution of the flow of the cooling oil duct.
Further, the oil cooling shell one side is fixedly connected with the motor body, one side of the motor body is spliced with the bearing end cover, the other side of the oil cooling shell is clamped with the oil duct connecting frame through the clamping block, and the oil duct connecting frame is used for fixing the motor body and the bearing end cover in the oil cooling shell.
Further, one side of the oil duct connecting frame is fixedly connected with one side of the motor body through the bearing sleeve, the other side of the oil duct connecting frame is connected with the nesting through the connecting shaft, and the magnetic induction ring is connected with the heat dissipation controller through signal transmission.
Further, the heat dissipation controller comprises an intelligent controller, a cold oil tank and an oil pump, wherein one side of the intelligent controller is electrically connected with the oil pump through a wire, the intelligent controller is connected with a temperature sensor through signal transmission, and the temperature sensor is arranged in the oil-cooled motor.
Further, cold oil tank one side and oil pump fixed connection, oil pump one end and circulating pipe fixed connection, cold oil tank outer wall one side passes through bolt and radiator fan fixed connection, and the transmission shaft is installed to radiator fan center, and cold oil tank one side is connected with the transmission shaft rotation through the bearing.
Further, the cooling device comprises a heat exchanger and cooling pipelines, the cooling pipelines are in a continuous and regular S shape, the cooling pipelines are arranged at least one and are respectively arranged in parallel, one side of each cooling pipeline is communicated with the oil duct connecting frame, the other side of each cooling pipeline is communicated with a heat medium inlet of the heat exchanger through a pipeline, and a cold medium outlet at the other end of the heat exchanger is communicated with one side of the oil pump through a circulating pipe.
Further, be provided with the main oil duct in the cold oil tank, main oil duct inner wall both sides are connected with drive vane rotation through the bearing respectively, and drive vane one side runs through bearing and connecting rod fixed connection, connecting rod one end and first gear interference connection, and first gear upper surface passes through tooth and second gear engagement, second gear and transmission shaft fixed connection.
Further, the intelligent controller includes:
the signal acquisition unit is used for acquiring a magnetic induction signal of the magnetic induction ring, waking up the temperature sensor based on the acquired magnetic induction signal, and acquiring temperature data actively uploaded by the temperature sensor;
a cooling control unit for judging whether the temperature of the oil-cooled motor is in a normal range based on the acquired temperature data;
when the temperature data exceeds a preset threshold value, a control signal is sent out, the oil pump is controlled to work based on an electric signal, and when the temperature data is reduced to the preset threshold value, a stop signal is sent out, and the oil pump is controlled to stop working based on the electric signal;
the evaluation unit is used for constructing a motor performance evaluation model, acquiring a time stamp carried by the control signal and evaluating the running performance of the motor based on the motor performance evaluation model.
Further, the evaluation unit evaluates the running performance of the motor based on the motor performance evaluation model, specifically:
acquiring operation data of the motor body, and filtering the operation data according to the effective operation state of the motor body to obtain target operation data;
extracting data characteristics of the target operation data, determining a target value of the target operation data of the motor body based on the data characteristics, and drawing a rotating speed change curve and a heating curve of the motor body based on the time length of the target operation data;
analyzing the rotating speed change curve value and the heating curve change value of the motor body through the motor performance evaluation model to obtain a performance evaluation value of the motor body;
comparing the performance evaluation value with a first preset threshold value and a second preset threshold value;
if the performance evaluation value is smaller than a first preset threshold value, judging that the motor body reaches a loss standard, and simultaneously sending an early warning report to a main control device and a remote terminal based on signals;
if the performance evaluation value is larger than or equal to a first preset threshold value and smaller than a second preset threshold value, judging that the performance attenuation of the motor body is abnormal, and maintaining the motor body;
otherwise, judging that the performance of the motor body is normal.
Further, the flow execution module determines a cooling oil duct related to the region to be cooled and the length of a superheating section of the corresponding cooling oil duct in the region to be cooled according to the range and the position of the region to be cooled;
the flow execution module calculates the distribution flow of each cooling oil duct of the area to be cooled by adopting the following formula:
；
in the above-mentioned method, the step of,indicate->-a distributed flow of strip cooling channels (16); />And->Respectively represent +.>Strip cooling oil duct (16) and +>The structural coefficient of the strip cooling oil duct (16) is taken as the ratio of the thickness of the motor shell corresponding to the position of the cooling oil duct (16) to the set reference thickness; />And->Respectively represent +.>Strip cooling oil duct (16) and +>The length coefficient of the strip cooling oil duct (16) flowing through the region to be cooled is the ratio of the length of the superheating section of the corresponding cooling oil duct (16) in the region to be cooled to the average length of all the cooling oil ducts (16); />And->Respectively represent +.>Strip cooling oil duct (16) and +>Average temperature data of the strip cooling oil passage (16) flowing through the region to be cooled; />Representing a preset threshold value; />Indicating the total number of cooling oil passages (16) flowing through the region to be cooled; />Indicating the total flow of the oil pump (213);
and generating a control instruction according to the calculated distribution flow of each cooling oil duct, and controlling flow regulating valves of each cooling oil duct in the area to be cooled.
Compared with the prior art, the invention has the beneficial effects that:
1. fix motor body inside the oil cooling shell through oil cooling shell cooperation bearing cap to through the fixed connection with motor body output shaft, guaranteed motor body's output effect, the cooling oil duct is contacted with motor body outer wall, the oil duct link is linked together cooling oil duct and cold oil tank, guaranteed the circulation of oil circuit, further, guaranteed oil cooling shell and heat dissipation controller connection stability through the oil duct link, acquire motor body's magnetic induction signal through the magnetic induction circle, and transmit to intelligent control ware, cool off motor body through indirect oil cooling's mode, the use that does not influence motor body when having guaranteed the cooling effect.
2. The cooling oil in the cooling oil tank is conveyed to the cooling oil duct through the main oil duct to cool the motor body, when the cooling oil passes through the main oil duct, the driving blades are driven to rotate under the action of the flow velocity, and the second gear is driven to rotate, so that the cooling fan rotates to output cooling air, the wind speed of the cooling fan is adjusted based on the flow of the cooling oil, the setting of the driving device is reduced, the energy consumption is reduced, the cooling oil is discharged to a plurality of cooling pipelines connected with the oil duct connecting frame through the cooling oil duct, the paths of the cooling oil are greatly increased, the cooling pipelines are cooled based on the rotation of the cooling fan, the heat dissipation effect of the cooling pipelines is guaranteed, the working pressure of the heat exchanger is reduced, the heat loss of the heat exchanger is effectively reduced, and the heat dissipation efficiency is improved.
3. Through the signal data of obtaining the motor body in real time, in time wake up temperature sensor when the motor body operates, real-time temperature monitoring to motor body, and according to temperature data control cooling system heat dissipation, guarantee the operational environment of motor body, avoid the motor body high condition that causes the damage of operating temperature, build the motor performance evaluation model, carry out the analysis to the change of rotational speed and the temperature of motor body based on operating data, realize carrying out effectual aassessment to the performance of motor body, and carry out corresponding loss recovery and maintenance processing to the motor body according to the evaluation result, carry out effective aassessment to the performance of motor body, realize carrying out strict effectual accuse to the running state of motor body, and when the performance of motor body appears unusual, in time carry out corresponding processing to the motor body, the control and the management effect to the motor body have been improved.
Drawings
FIG. 1 is an isometric view of an oil-cooled motor heat dissipation system of the present invention;
FIG. 2 is an exploded isometric view of an oil-cooled motor heat dissipation system according to the present invention;
FIG. 3 is an exploded isometric view of an oil-cooled motor of the present invention;
FIG. 4 is a front cross-sectional view of an oil-cooled motor of the present invention;
FIG. 5 is a top cross-sectional view of a thermal dissipation controller of the present invention;
FIG. 6 is a partial front view of the cold oil tank of the present invention;
FIG. 7 is a block diagram of an intelligent controller according to the present invention.
In the figure: 1. an oil-cooled motor; 11. an oil-cooled housing; 12. a motor body; 13. a bearing end cap; 14. an oil duct connecting frame; 15. a magnetic induction coil; 16. a cooling oil passage; 2. a heat dissipation mechanism; 21. a heat dissipation controller; 211. an intelligent controller; 212. a cold oil tank; 2121. a main oil duct; 2122. a drive vane; 2123. a connecting rod; 2124. a first gear; 2125. a second gear; 213. an oil pump; 214. a circulation pipe; 215. a heat radiation fan; 216. a transmission shaft; 22. a cooling device; 221. a heat exchanger; 222. and (5) cooling the pipeline.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In order to solve the technical problem that in the prior art, a pump cavity is arranged in a pump shell, however, an oil way cooling path is shorter, so that cooling oil in the cooling path cannot be effectively cooled when a motor is used for a long time, the cooling effect is reduced, and the situation that the motor is damaged due to temperature rise when the motor is used for a long time is caused, referring to fig. 1-6, the following technical scheme is provided in the embodiment:
the oil-cooled motor cooling system comprises an oil-cooled motor 1 and a cooling mechanism 2, wherein one side of the oil-cooled motor 1 is clamped with the cooling mechanism 2, the oil-cooled motor 1 comprises an oil-cooled shell 11 and a motor body 12, the motor body 12 is arranged in the oil-cooled shell 11, one end of the oil-cooled shell 11 is rotationally connected with an outer output shaft through a bearing, the outer output shaft is fixedly connected with an output shaft on one side of the motor body 12, the cooling mechanism 2 comprises a cooling controller 21 and a cooling device 22, and one side of the cooling controller 21 is connected with the cooling device 22 through a pipeline;
one side of the oil cooling shell 11 is fixedly connected with the motor body 12, one side of the motor body 12 is spliced with the bearing end cover 13, the other side of the oil cooling shell 11 is clamped with the oil duct connecting frame 14 through the clamping block, the motor body 12 and the bearing end cover 13 are fixed in the oil cooling shell 11 through the oil duct connecting frame 14, one side of the oil duct connecting frame 14 is fixedly connected with one side of the motor body 12 through a bearing sleeve, the other side of the oil duct connecting frame 14 is connected with a nesting connection through a connecting shaft, the magnetic induction ring 15 is connected with a heat dissipation controller 21 in a signal transmission manner, at least one cooling oil duct 16 is arranged in the oil cooling shell 11, the cooling oil duct 16 is spirally wound on the side wall of the oil cooling shell 11, one side of the cooling oil duct 16 is respectively communicated with the oil duct connecting frame 14, and one side surface of the oil duct connecting frame 14 is communicated with the cooling device 22.
Specifically, fix motor body 12 inside oil-cooled shell 11 through oil-cooled shell 11 cooperation bearing end cover 13 to through the fixed connection with motor body 12 output shaft, guaranteed motor body 12's output effect, cooling oil duct 16 and motor body 12 outer wall contact, oil duct link 14 is linked together cooling oil duct 16 and cold oil tank 212, guaranteed the circulation of oil circuit, further, guaranteed oil-cooled shell 11 and heat dissipation controller 21 connection stability through oil duct link 14, acquire motor body 12's magnetic induction signal through magnetic induction circle 15, and transmit to intelligent control 211, cool off motor body 12 through indirect oil-cooled mode, do not influence motor body 12's use when having guaranteed the cooling effect.
In order to solve the technical problems that in the prior art, cooling oil is generally cooled based on a heat exchanger, however, heat exchange of the heat exchanger has heat loss, so that the heat exchange effect is poor, air cooling cannot be matched, and the cooling quality is low, referring to fig. 1-6, the embodiment provides the following technical scheme:
the heat dissipation controller 21 comprises an intelligent controller 211, a cold oil tank 212 and an oil pump 213, wherein one side of the intelligent controller 211 is electrically connected with the oil pump 213 through a wire, the intelligent controller 211 is in signal transmission connection with a temperature sensor, the temperature sensor is arranged in the oil-cooled motor 1, one side of the cold oil tank 212 is fixedly connected with the oil pump 213, one end of the oil pump 213 is fixedly connected with a circulating pipe 214, one side of the outer wall of the cold oil tank 212 is fixedly connected with a heat dissipation fan 215 through a bolt, a transmission shaft 216 is arranged in the center of the heat dissipation fan 215, and one side of the cold oil tank 212 is rotationally connected with the transmission shaft 216 through a bearing;
the cooling device 22 comprises a heat exchanger 221 and cooling pipelines 222, the cooling pipelines 222 are in a continuous regular S shape, the number of the cooling pipelines 222 is not less than one, the cooling pipelines 222 are respectively arranged in parallel, one side of each cooling pipeline 222 is communicated with the oil duct connecting frame 14, the other side of each cooling pipeline 222 is communicated with a heat medium inlet of the heat exchanger 221 through a pipeline, a cold medium outlet at the other end of each heat exchanger 221 is communicated with one side of the oil pump 213 through a circulating pipe 214, a main oil duct 2121 is arranged in the cold oil tank 212, two sides of the inner wall of the main oil duct 2121 are respectively connected with a transmission blade 2122 in a rotating mode through bearings, one side of the transmission blade 2122 is fixedly connected with a connecting rod 2123, one end of the connecting rod 2123 is in interference connection with a first gear 2124, the upper surface of the first gear 2124 is meshed with a second gear 2125 through teeth, and the second gear 2125 is fixedly connected with a transmission shaft 216.
Specifically, the intelligent controller 211 obtains the magnetic induction signal of the motor body 12, after confirming that the motor body 12 operates, the temperature of the motor body 12 is monitored, when the temperature of the motor body 12 is too high, the oil pump 213 is controlled to work, the oil pump 213 conveys the cooling oil in the cooling oil tank 212 into the cooling oil duct 16 to cool the motor body 12, when the cooling oil passes through the main oil duct 2121, the transmission blade 2122 is driven to rotate under the action of the flow velocity, and the second gear 2125 is driven to rotate, so that the cooling fan 215 rotates to output cooling air, the wind speed of the cooling fan 215 is adjusted based on the flow of the cooling oil, the setting of the driving device is reduced, the energy consumption is reduced, and the cooling oil is greatly increased by the cooling oil ducts 222 in the cooling pipelines 222 connected with the oil duct connecting frame 14, and the diameter of each cooling pipeline 222 is thinner, the cooling effect of the cooling pipeline 222 is guaranteed, the working pressure of the heat exchanger 221 is reduced, the heat dissipation efficiency of the heat exchanger 221 is effectively reduced, and the heat dissipation efficiency is improved.
Working principle: the intelligent controller 211 obtains the magnetic induction signal of the motor body 12, confirms that the motor body 12 is operated, monitors the temperature of the motor body 12, when the temperature of the motor body 12 is too high, controls the oil pump 213 to work, the oil pump 213 conveys cooling oil in the cooling oil tank 212 into the cooling oil duct 16 through the main oil duct 2121 to cool the motor body 12, when the cooling oil passes through the main oil duct 2121, the transmission blade 2122 is driven to rotate under the action of the flow velocity, meanwhile, the connecting rod 2123 fixed with the transmission blade 2122 drives the first gear 2124 to rotate, and the second gear 2125 meshed with the transmission blade 2122 synchronously rotates, so that the cooling fan 215 rotates to output cooling air, and the cooling air is discharged into a plurality of cooling pipelines 222 connected with the oil duct connecting frame 14 through the cooling oil duct 16, the paths of the cooling oil are greatly increased, the diameter of each cooling pipeline 222 is smaller, and the cooling pipelines 222 dissipate heat based on the rotation of the cooling fan 215.
In order to solve the technical problems that intelligent monitoring and evaluation cannot be performed on a motor, abnormal conditions of the motor cannot be timely alarmed, labor cost is high, and intelligent level is low, referring to fig. 7, the following technical scheme is provided in the embodiment:
the intelligent controller 211 includes:
the signal acquisition unit is used for acquiring a magnetic induction signal of the magnetic induction ring 15, waking up the temperature sensor based on the acquired magnetic induction signal, and acquiring temperature data actively uploaded by the temperature sensor;
a cooling control unit for judging whether the temperature of the oil-cooled motor 1 is in a normal range based on the acquired temperature data;
when the temperature data exceeds a preset threshold value, a control signal is sent out, the oil pump 213 is controlled to work based on an electric signal, and when the temperature data is reduced to the preset threshold value, a stop signal is sent out, and the oil pump 213 is controlled to stop working based on the electric signal;
the evaluation unit is used for constructing a motor performance evaluation model, acquiring a time stamp carried by the control signal and evaluating the running performance of the motor based on the motor performance evaluation model;
the evaluation unit evaluates the running performance of the motor based on the motor performance evaluation model, specifically:
acquiring operation data of the motor body 12, and filtering the operation data according to the effective operation state of the motor body 12 to obtain target operation data;
extracting data characteristics of the target operation data, determining a target value of the target operation data of the motor body 12 based on the data characteristics, and drawing a rotating speed change curve and a heating curve of the motor body 12 based on the time length of the target operation data;
analyzing the rotating speed change curve value and the heating curve change value of the motor body 12 through the motor performance evaluation model to obtain a performance evaluation value of the motor body 12;
comparing the performance evaluation value with a first preset threshold value and a second preset threshold value;
if the performance evaluation value is smaller than a first preset threshold value, judging that the motor body 12 has reached a loss standard, and simultaneously sending an early warning report to a main control device and a remote terminal based on signals;
if the performance evaluation value is greater than or equal to a first preset threshold value and smaller than a second preset threshold value, judging that the performance attenuation of the motor body 12 is abnormal, and maintaining the motor body 12;
otherwise, it is determined that the performance of the motor body 12 is normal.
Specifically, signal data of the motor body 12 is obtained in real time, the temperature sensor is awakened timely when the motor body 12 operates, real-time temperature monitoring is performed on the motor body 12, heat dissipation is performed on the motor body 12 according to the temperature data, the operation environment of the motor body 12 is guaranteed, damage caused by overhigh operation temperature of the motor body 12 is avoided, a motor performance evaluation model is built, the change of the rotating speed and the temperature of the motor body 12 is analyzed based on the operation data, effective evaluation is performed on the performance of the motor body 12, corresponding loss recovery and maintenance processing are performed on the motor body 12 according to an evaluation result, effective evaluation is performed on the performance of the motor body 12, strict and effective control is performed on the operation state of the motor body 12, when the performance of the motor body 12 is abnormal, corresponding processing is performed on the motor body 12 timely, and the monitoring and management effects on the motor body 12 are improved.
On the basis of the embodiment, the cooling oil channels 16 are arranged in parallel, each cooling oil channel 16 is provided with a flow regulating valve, and a temperature sensor is arranged in the motor corresponding to each cooling oil channel 16; the cooling control unit includes:
the temperature distribution determining module is used for marking the temperature data detected by the temperature sensor of each cooling oil duct 16 in the interval area of the corresponding temperature sensor, obtaining the temperature data of each point in the interval area through interpolation, and reflecting the temperature data on the three-dimensional motor model to form a temperature distribution diagram of the motor;
the oil duct required region determining module is used for eliminating the cooling oil duct 16 with the temperature data not exceeding the preset threshold value, then taking a region with the temperature data exceeding the preset threshold value as a region to be cooled, carrying out temperature change gradient analysis on the region to be cooled, and carrying out visual display on the region to be cooled on the three-dimensional motor model from low to high by adopting red from light to deep according to the temperature data;
the flow execution module is used for determining the flow distribution requirement of the cooling oil duct 16 of the region to be cooled according to the temperature change gradient of the region to be cooled, generating a control instruction based on the flow distribution requirement, controlling the flow regulating valve of the cooling oil duct 16 of the region to be cooled, and realizing reasonable distribution of the flow of the cooling oil duct 16.
The beneficial effects of the technical scheme are as follows: through distributing and setting up many cooling oil ducts 16 and corresponding temperature sensor, implement multiple spot temperature detection, according to temperature sensor overall arrangement and the temperature data that corresponds the measurement, can reflect the temperature distribution condition of motor accurately, combine to predetermine the threshold value, accurately define the regional scope that needs cooling down, the flow control of different cooling oil ducts 16 of rethread, can purposefully rationally implement accurate cooling down, avoid the point distribution cooling that does not need to cool down with the oil to cause extravagant, thereby shorten single refrigerated oil pump 213 operating time, reduce the energy consumption, improve oil pump 213 life-span. The temperature balance and stability of each point of the motor work are guaranteed by monitoring and controlling the temperature of the motor in real time, the temperature of the motor is kept within a safe range, and the stability and service life of the motor are improved; in addition, by establishing a three-dimensional motor model, the temperature condition exceeding the preset threshold area in the temperature distribution of the motor is displayed in red with different depths, so that the problem of overrun of the temperature of the motor during operation can be intuitively reflected, and the observation and equipment management of personnel are facilitated.
On the basis of the foregoing embodiment, the flow execution module determines, according to the range and the position of the area to be cooled, the cooling oil duct 16 related to the area to be cooled and the length of the superheating section of the corresponding cooling oil duct 16 in the area to be cooled;
the flow rate execution module calculates the distribution flow rate of each cooling oil passage 16 of the region to be cooled using the following formula:
；
in the above-mentioned method, the step of,indicate->-a distributed flow of strip cooling channels (16); />And->Respectively represent +.>Strip cooling oil duct (16) and +>The structural coefficient of the strip cooling oil duct (16) is taken as the ratio of the thickness of the motor shell corresponding to the position of the cooling oil duct (16) to the set reference thickness; />And->Respectively represent +.>Strip cooling oil duct (16) and +>The length coefficient of the strip cooling oil duct (16) flowing through the region to be cooled is the ratio of the length of the superheating section of the corresponding cooling oil duct (16) in the region to be cooled to the average length of all the cooling oil ducts (16); />And->Respectively represent +.>Strip cooling oil duct (16) and +>Average temperature data of the strip cooling oil passage (16) flowing through the region to be cooled; />Representing a preset threshold value; />Indicating the total number of cooling oil passages (16) flowing through the region to be cooled; />Indicating the total flow of the oil pump (213);
and generating a control instruction according to the calculated distribution flow of each cooling oil duct 16, and controlling flow regulating valves of each cooling oil duct 16 in the area to be cooled.
The beneficial effects of the technical scheme are as follows: determining the length of a cooling oil duct 16 related to a region to be cooled and the length of the cooling oil duct in the region to be cooled through forming a temperature distribution map on a three-dimensional motor model, and determining a length coefficient based on the length; the distribution flow of each cooling oil duct 16 of the area to be cooled (area to be cooled) is accurately calculated by adopting the formula in combination with the structural coefficient reflecting the motor structure, the formula is combined with the area range to be cooled, the total flow of the oil pump 213 is actually distributed in a proportion manner, the distribution flow of the corresponding cooling oil duct 16 can be accurately obtained by implementing a calculation process with smaller calculation amount, thereby generating a control instruction, controlling the flow regulating valve of each cooling oil duct 16 in the area to be cooled, further improving the flow distribution precision of the cooling oil duct 16, adapting the flow distribution to the condition of the temperature overrun of the corresponding cooling oil duct 16 as much as possible, realizing synchronous cooling of each cooling oil duct 16, further avoiding waste caused by distributing cooling oil to points which do not need to be cooled, further reducing the operation time of the oil pump 213 for single cooling, thereby reducing the energy consumption and prolonging the service life of the oil pump 213; the temperature balance and stability of each point of the motor work are guaranteed more accurately, the motor temperature is kept within a safe range, and the stability and service life of the motor are further improved.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should be covered by the protection scope of the present invention by making equivalents and modifications to the technical solution and the inventive concept thereof.
Claims (7)
1. The utility model provides an oil-cooled motor cooling system, includes oil-cooled motor (1) and cooling body (2), its characterized in that: one side of the oil-cooled motor (1) is clamped with the heat dissipation mechanism (2), the oil-cooled motor (1) comprises an oil-cooled shell (11) and a motor body (12), the motor body (12) is arranged in the oil-cooled shell (11), one end of the oil-cooled shell (11) is rotationally connected with an outer output shaft through a bearing, the outer output shaft is fixedly connected with an output shaft on one side of the motor body (12), the heat dissipation mechanism (2) comprises a heat dissipation controller (21) and a cooling device (22), and one side of the heat dissipation controller (21) is connected with the cooling device (22) through a pipeline;
the oil cooling shell (11) is internally provided with at least one cooling oil duct (16), the cooling oil duct (16) is spirally wound on the side wall of the oil cooling shell (11), one side of the cooling oil duct (16) is respectively communicated with the oil duct connecting frame (14), and one side surface of the oil duct connecting frame (14) is communicated with the cooling device (22);
the cooling oil channels (16) are arranged in parallel, each cooling oil channel (16) is provided with a flow regulating valve, and a temperature sensor is arranged in the motor corresponding to each cooling oil channel (16);
the heat dissipation controller (21) comprises an intelligent controller (211), a cold oil tank (212) and an oil pump (213), wherein one side of the intelligent controller (211) is electrically connected with the oil pump (213) through a wire, the intelligent controller (211) is in signal transmission connection with a temperature sensor, and the temperature sensor is arranged in the oil-cooled motor (1);
the intelligent controller (211) comprises:
the signal acquisition unit is used for acquiring a magnetic induction signal of the magnetic induction ring (15), waking up the temperature sensor based on the acquired magnetic induction signal, and acquiring temperature data actively uploaded by the temperature sensor;
a cooling control unit for judging whether the temperature of the oil-cooled motor (1) is in a normal range based on the acquired temperature data;
when the temperature data exceeds a preset threshold value, a control signal is sent out, the oil pump (213) is controlled to work based on an electric signal, and when the temperature data is reduced to the preset threshold value, a stop signal is sent out, and the oil pump (213) is controlled to stop working based on the electric signal;
the cooling control unit includes:
the temperature distribution determining module is used for marking temperature data detected by the temperature sensors of each cooling oil duct (16) in the interval area of the corresponding temperature sensor, obtaining temperature data of each point in the interval area through interpolation, and reflecting the temperature data on the three-dimensional motor model to form a temperature distribution diagram of the motor;
the oil duct required region determining module is used for eliminating a cooling oil duct (16) with temperature data not exceeding the preset threshold value, then taking a region with the temperature data exceeding the preset threshold value as a region to be cooled, carrying out temperature change gradient analysis on the region to be cooled, and carrying out visual display on the region to be cooled on the three-dimensional motor model from low to high by adopting red from shallow to deep according to the temperature data;
the flow execution module is used for determining the flow distribution requirement of the cooling oil duct (16) of the region to be cooled according to the temperature change gradient of the region to be cooled, generating a control instruction based on the flow distribution requirement, controlling a flow regulating valve of the cooling oil duct (16) of the region to be cooled, and realizing reasonable distribution of the flow of the cooling oil duct (16);
the evaluation unit is used for constructing a motor performance evaluation model, acquiring a time stamp carried by the control signal and evaluating the running performance of the motor based on the motor performance evaluation model;
the evaluation unit evaluates the running performance of the motor based on the motor performance evaluation model, specifically:
acquiring operation data of the motor body (12), and filtering the operation data according to the effective operation state of the motor body (12) to obtain target operation data;
extracting data characteristics of the target operation data, determining a target value of the target operation data of the motor body (12) based on the data characteristics, and drawing a rotating speed change curve and a heating curve of the motor body (12) based on the time length of the target operation data;
analyzing the rotating speed change curve value and the heating curve change value of the motor body (12) through the motor performance evaluation model to obtain a performance evaluation value of the motor body (12);
comparing the performance evaluation value with a first preset threshold value and a second preset threshold value;
if the performance evaluation value is smaller than a first preset threshold value, judging that the motor body (12) reaches a loss standard, and simultaneously sending an early warning report to a main control device and a remote terminal based on signals;
if the performance evaluation value is larger than or equal to a first preset threshold value and smaller than a second preset threshold value, judging that the performance attenuation of the motor body (12) is abnormal, and maintaining the motor body (12);
otherwise, the motor body (12) is judged to be normal in performance.
2. The oil-cooled motor heat dissipation system of claim 1, wherein: one side of the oil cooling shell (11) is fixedly connected with the motor body (12), one side of the motor body (12) is spliced with the bearing end cover (13), the other side of the oil cooling shell (11) is clamped with the oil duct connecting frame (14) through the clamping block, and the oil duct connecting frame (14) is used for fixing the motor body (12) and the bearing end cover (13) in the oil cooling shell (11).
3. The oil-cooled motor heat dissipation system of claim 2, wherein: one side of the oil duct connecting frame (14) is fixedly connected with one side of the motor body (12) through a bearing sleeve, the other side of the oil duct connecting frame (14) is connected with the nesting through a connecting shaft, and the magnetic induction ring (15) is connected with the heat dissipation controller (21) through signal transmission.
4. An oil-cooled motor heat dissipation system as set forth in claim 3, wherein: one side of a cold oil tank (212) is fixedly connected with an oil pump (213), one end of the oil pump (213) is fixedly connected with a circulating pipe (214), one side of the outer wall of the cold oil tank (212) is fixedly connected with a cooling fan (215) through a bolt, a transmission shaft (216) is arranged in the center of the cooling fan (215), and one side of the cold oil tank (212) is rotationally connected with the transmission shaft (216) through a bearing.
5. The oil-cooled motor heat dissipation system of claim 4, wherein: the cooling device (22) comprises a heat exchanger (221) and cooling pipelines (222), the cooling pipelines (222) are in a continuous and regular S shape, the number of the cooling pipelines (222) is not less than one, the cooling pipelines are respectively arranged in parallel, one side of each cooling pipeline (222) is communicated with the oil duct connecting frame (14), the other side of each cooling pipeline (222) is communicated with a heat medium inlet of the heat exchanger (221) through a pipeline, and a cold medium outlet at the other end of the heat exchanger (221) is communicated with one side of the oil pump (213) through a circulating pipe (214).
6. The oil-cooled motor heat dissipation system of claim 5, wherein: be provided with main oil duct (2121) in cold oil tank (212), main oil duct (2121) inner wall both sides are connected with drive vane (2122) rotation through the bearing respectively, and drive vane (2122) one side runs through bearing and connecting rod (2123) fixed connection, connecting rod (2123) one end and first gear (2124) interference connection, and first gear (2124) upper surface is through tooth and second gear (2125) meshing, second gear (2125) and transmission shaft (216) fixed connection.
7. The oil-cooled motor heat dissipation system of claim 6, wherein: the flow execution module determines a cooling oil duct (16) related to the region to be cooled and the length of a superheating section of the corresponding cooling oil duct (16) in the region to be cooled according to the range and the position of the region to be cooled;
the flow execution module calculates the distribution flow of each cooling oil duct (16) of the area to be cooled by adopting the following formula:
；
in the above-mentioned method, the step of,indicate->-a distributed flow of strip cooling channels (16); />And->Respectively represent +.>Strip cooling oil duct (16) and +>The structural coefficient of the strip cooling oil duct (16) is taken as the corresponding cooling oil duct (1)6) The ratio of the thickness of the motor shell at the position to the set reference thickness; />And->Respectively represent +.>Strip cooling oil duct (16) and +>The length coefficient of the strip cooling oil duct (16) flowing through the region to be cooled is the ratio of the length of the superheating section of the corresponding cooling oil duct (16) in the region to be cooled to the average length of all the cooling oil ducts (16); />And->Respectively represent +.>Strip cooling oil duct (16) and +>Average temperature data of the strip cooling oil passage (16) flowing through the region to be cooled; />Representing a preset threshold value; />Indicating the total number of cooling oil passages (16) flowing through the region to be cooled; />Indicating the total flow of the oil pump (213);
and generating a control instruction according to the calculated distribution flow of each cooling oil duct (16), and controlling flow regulating valves of each cooling oil duct (16) in the area to be cooled.
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