CN116566124B - High-power linear motor with intelligent thermal management - Google Patents
High-power linear motor with intelligent thermal management Download PDFInfo
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- CN116566124B CN116566124B CN202310843153.1A CN202310843153A CN116566124B CN 116566124 B CN116566124 B CN 116566124B CN 202310843153 A CN202310843153 A CN 202310843153A CN 116566124 B CN116566124 B CN 116566124B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 96
- 238000001816 cooling Methods 0.000 claims abstract description 70
- 238000012502 risk assessment Methods 0.000 claims abstract description 42
- 238000004458 analytical method Methods 0.000 claims abstract description 38
- 238000000034 method Methods 0.000 claims abstract description 19
- 230000008569 process Effects 0.000 claims abstract description 16
- 238000011156 evaluation Methods 0.000 claims description 39
- 238000009423 ventilation Methods 0.000 claims description 27
- 239000007788 liquid Substances 0.000 claims description 18
- 230000002159 abnormal effect Effects 0.000 claims description 13
- 238000007781 pre-processing Methods 0.000 claims description 11
- 230000005540 biological transmission Effects 0.000 claims description 6
- 238000012545 processing Methods 0.000 claims description 6
- 101100366710 Arabidopsis thaliana SSL12 gene Proteins 0.000 claims description 4
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- 230000000694 effects Effects 0.000 abstract description 23
- 239000000498 cooling water Substances 0.000 abstract description 17
- 239000000428 dust Substances 0.000 abstract description 5
- 238000007405 data analysis Methods 0.000 abstract description 4
- 238000007664 blowing Methods 0.000 description 4
- 230000017525 heat dissipation Effects 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000004364 calculation method Methods 0.000 description 2
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Classifications
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B5/00—Cleaning by methods involving the use of air flow or gas flow
- B08B5/02—Cleaning by the force of jets, e.g. blowing-out cavities
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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
- H02K41/00—Propulsion systems in which a rigid body is moved along a path due to dynamo-electric interaction between the body and a magnetic field travelling along the path
- H02K41/02—Linear motors; Sectional motors
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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
Abstract
The invention relates to the technical field of linear motors, in particular to a high-power linear motor with intelligent heat management, which comprises a positioning base, wherein two ends of the upper surface of the positioning base are fixedly connected with positioning side plates, guide cooling pipes are symmetrically and fixedly connected between the two positioning side plates, and a placing plate is sleeved outside the guide cooling pipes in a sliding manner; according to the invention, on the premise that the water pump is normal, the external data of the equipment are collected and overheat risk assessment analysis is carried out, the overheat operation of the equipment is avoided, the control of the temperature of the equipment in operation is facilitated, and the reasonable thermal management is carried out on the equipment in a data analysis and mechanical combination mode, namely, cooling water flows back into the water pump box, so that the heat generated in the operation process of the equipment is reduced, gas takes away the heat generated in the circuit protection plate and the control box, and meanwhile, the dust on the permanent magnet is cleaned by utilizing the heat-dissipating gas, so that the thermal management effect on the equipment is realized through water cooling and air cooling under the water cooling premise.
Description
Technical Field
The invention relates to the technical field of linear motors, in particular to a high-power linear motor with intelligent heat management.
Background
The linear motor is a transmission device for directly converting electric energy into linear motion mechanical energy without any intermediate conversion mechanism, has simple structure and high response speed, and has wide application in the fields of logistics systems, industrial processing, assembly and the like;
in motor use, the motor can produce a large amount of heat, and the high thrust, the precision of temperature rise can influence linear electric motor, life-span etc. after the heat reaches certain degree, the motor just can not use, otherwise will take place insulation breakdown and make the motor burn out, but among the prior art, unable accurate thermal management carries out to equipment, and dispel the heat through the heat-sinking capability of motor itself, the radiating effect is not good, and then the fault rate of increase equipment, in addition also can't carry out the supervision early warning to the cooling mechanism of equipment, and then the cooling effect when influencing the equipment operation, the early warning supervision performance of reduction equipment, and then there is the poor and poor problem of supervision early warning effect of thermal management effect.
Disclosure of Invention
The invention aims to provide a high-power linear motor with intelligent thermal management, which is used for solving the technical defects of the prior art, collecting external data of equipment and carrying out overheat risk assessment analysis on the equipment on the premise that a water pump is normal, avoiding overheat operation of the equipment, being beneficial to protecting electric elements inside a control box, simultaneously being beneficial to managing and controlling the temperature of the equipment during operation, namely carrying out reasonable thermal management on the equipment in a mode of combining data analysis and machinery, namely controlling the water pump inside a water pump box to work, enabling cooling water to flow back into the water pump box through a liquid guide pipe, a return pipe, a guide cooling pipe and the inside of a circulating pipe, so as to achieve the effects of reducing heat generated in the operation process of the equipment, enabling the cooling water to drive a transmission impeller to rotate when the cooling water flows in the liquid guide pipe, further enabling a cooling fan to synchronously rotate, changing the air flow rate inside a wind gathering cover, enabling air to enter the inside a circuit protection plate and the inside the control box through the inside of a gas circuit protection plate and taking away heat generated inside the control box, and enabling air to clean dust on a permanent magnet, thereby improving the heat dissipation effect of the equipment under the premise of carrying out the heat dissipation effect on the equipment.
The aim of the invention can be achieved by the following technical scheme: the utility model provides a high-power linear electric motor with intelligent thermal management, includes the location base, the upper surface both ends of location base all fixedly connected with location curb plate, two symmetrical fixedly connected with direction cooling tube between the location curb plate, the outside slip of direction cooling tube has cup jointed and has been placed the board, one side fixedly connected with control box of placing the board, one side fixedly connected with circuit protection board of control box, the upper surface of location base is located the below fixedly connected with permanent magnet of placing the board, the right-hand member of location base is located the side fixedly connected with pump box of location curb plate;
the upper surface fixed grafting of water pump case has the catheter, and the one end that the water pump case was kept away from to the catheter runs through the location curb plate inside and is fixed connection with the direction cooling tube, the one end that the water pump case was kept away from to the location base just is located the side fixedly connected with back flow of location curb plate, the upper surface of water pump case is located one side fixedly connected with circulating pipe of catheter.
Preferably, the inside rotation of catheter is connected with concentric axle, the one end that concentric axle is located the catheter is inside has fixedly sleeved with drive impeller, and concentric axle is located the outside one end of catheter and has fixedly sleeved with cooling fan, the one end that concentric axle kept away from the catheter is rotated and is connected with and gathers the fan housing, the side fixedly connected with bleed air pipe that gathers the fan housing, the outside of bleed air pipe has been cup jointed the locating sleeve, and the locating sleeve is fixed connection with the location curb plate, one side fixedly connected with air duct of control box, one side fixedly connected with cavity board that the lower surface of placing the board is close to the control box, one side fixedly connected with blowing mouth that the cavity board is close to the permanent magnet.
Preferably, the inside of pump case is provided with the water pump, the both ends of back flow are fixed connection with two direction cooling tubes respectively, the one end that the pump case was kept away from to the circulating pipe runs through the inside of location curb plate and is fixed connection with the direction cooling tube that keeps away from the catheter, two the inside of direction cooling tube is the cavity, place the inside of board and offered the through-hole with the mutual matching of air duct.
Preferably, the side of gathering fan housing and location curb plate is fixed connection, the one end that gathers the fan housing is kept away from to the air pipe is fixed connection with the circuit guard plate, the one end that the control box was kept away from to the air pipe is fixed connection with place the board, the lower surface of placing the board is located the permanent magnet and is fixedly connected with and joins in marriage the cover plate directly over.
Preferably, a control platform is arranged in the control box, and comprises a server, a thermal management unit, a preprocessing unit, a fault analysis unit, an early warning unit and an execution unit;
when the server generates a supervision instruction, the supervision instruction is sent to the thermal management unit and the preprocessing unit, the preprocessing unit immediately collects working data of the water pump in the water pump box after receiving the supervision instruction, the working data comprise the running voltage of the water pump and the flow velocity of water flow in the guide cooling pipe, safety operation supervision analysis is carried out on the working data, the obtained normal signal is sent to the thermal management unit, and the abnormal signal is sent to the early warning unit;
the heat management unit immediately collects external data of the equipment after receiving the supervision instruction and the normal signal, wherein the external data comprise a friction heat value between the placing plate and the guide cooling pipe, a line temperature value in the line protection plate and a ventilation flow rate in the control box, the external data are subjected to overheat risk assessment analysis, the obtained overheat signal is sent to the fault analysis unit and the execution unit, and the execution unit immediately controls the water pump in the water pump box to work after receiving the overheat signal;
the fault analysis unit immediately collects the internal data of the equipment after receiving the risk signal, wherein the internal data comprises the running temperature and the line damaged area of each electric element in the control box, performs fault risk prediction evaluation analysis on the internal data, and sends the obtained primary management and control signal, secondary management and control signal and tertiary management and control signal to the early warning unit.
Preferably, the safety operation supervision and analysis process of the preprocessing unit is as follows:
the first step: the method comprises the steps of collecting the time length from the starting operation time to the ending operation time of a water pump, marking the time length as processing time length, dividing the processing time length into o sub-time nodes, wherein o is a natural number larger than zero, obtaining the operation voltage of the water pump in each sub-time node, comparing the operation voltage with a preset operation voltage threshold value, and marking the ratio of the number of sub-time nodes corresponding to the operation voltage larger than the preset operation voltage threshold value to the total number of sub-time nodes as a voltage risk value;
and a second step of: obtaining the water flow velocity in each sub-time node and guiding the cooling pipe, constructing a set A of water flow velocity, obtaining the difference value between two connected subsets, marking the average value of the difference value between the two connected subsets as an average flow fluctuation value, and comparing the voltage risk value and the average flow fluctuation value with a preset voltage risk value threshold value and a preset average flow fluctuation value which are recorded and stored in the voltage risk value and the average flow fluctuation value:
if the voltage risk value is smaller than or equal to a preset voltage risk value threshold value and the average flow fluctuation value is smaller than or equal to a preset average flow fluctuation value, generating a normal signal;
if the voltage risk value is greater than a preset voltage risk value threshold or the average flow fluctuation value is greater than a preset average flow fluctuation value, generating an abnormal signal.
Preferably, the overheat risk assessment analysis process of the thermal management unit is as follows:
SS1: acquiring the duration from the starting operation time to the ending operation time of the equipment, marking the duration as a time threshold, dividing the time threshold into i subtime periods, wherein i is a natural number larger than zero, acquiring the friction heat value between a placing plate and a guide cooling pipe in each subtime period, wherein the friction heat value refers to the heat value generated by friction between the placing plate and the guide cooling pipe, establishing a rectangular coordinate system by taking the time as an X axis and taking the friction heat value as a Y axis, drawing a friction heat value curve in a dot drawing manner, drawing a preset friction heat value threshold curve in the coordinate system, acquiring the duration and the enclosed area of the friction heat value curve above the preset friction heat value threshold curve, marking the duration and the enclosed area as risk duration and risk area respectively, and further obtaining a unit time area value DM according to the risk duration and the risk area;
SS12: obtaining line temperature values inside a line protection plate in each sub-time period, constructing a line temperature value set A, obtaining a maximum subset and a minimum subset in the set A, marking the difference value between the maximum subset and the minimum subset as a maximum span value, comparing and analyzing the maximum span value with a preset maximum span value threshold, and marking the part with the maximum span value larger than the preset maximum span value threshold as a risk temperature value FW if the maximum span value is larger than the preset maximum span value threshold;
SS13: obtaining ventilation flow rates in the control box in each sub-time period, so as to obtain average ventilation flow rates in the control box in a time threshold, comparing the average ventilation flow rates with a preset average ventilation flow rate threshold, and if the average ventilation flow rate is smaller than the preset average ventilation flow rate threshold, marking a part of the average ventilation flow rate smaller than the preset average ventilation flow rate threshold as a thermal backlog value RJ;
SS14: obtaining an overheat risk evaluation value R according to a formula, and comparing the overheat risk evaluation value R with a preset overheat risk evaluation value threshold value recorded and stored in the overheat risk evaluation value R:
if the overheat risk assessment value R is smaller than or equal to a preset overheat risk assessment value threshold value, no signal is generated;
and if the overheat risk evaluation value R is larger than the preset overheat risk evaluation value threshold value, generating an overheat signal.
Preferably, the fault risk prediction evaluation analysis process of the fault analysis unit is as follows:
step one: acquiring the operation temperature of each electric element in the control box in the time threshold, comparing the operation temperature with a preset operation temperature threshold, if the operation temperature is larger than the preset operation temperature threshold, marking the number of the electric elements corresponding to the operation temperature larger than the preset operation temperature threshold as an abnormal risk number YC, acquiring a line damaged area XM in the time threshold control box, wherein the line damaged area value XM is the sum of the oxidation area, the cracking area and the bulge area of the line in the control box, and simultaneously acquiring an overheat risk evaluation value R from a thermal management unit, and further acquiring a part of the overheat risk evaluation value R larger than the preset overheat risk evaluation value threshold as an overheat interference value GR;
step two: obtaining a fault risk evaluation value G according to a formula, and comparing the fault risk evaluation value G with a preset fault risk evaluation value interval recorded and stored in the fault risk evaluation value G:
if the fault risk assessment value G is smaller than the minimum value in the preset fault risk assessment value interval, generating a primary management and control signal; if the fault risk assessment value G is located in a preset fault risk assessment value interval, a secondary control signal is generated; and if the fault risk assessment value G is larger than the maximum value in the preset fault risk assessment value interval, generating a three-level control signal.
The beneficial effects of the invention are as follows:
according to the invention, through collecting working data of the water pump in the water pump box and performing safe operation supervision analysis, whether the water pump in the water pump box normally operates or not is judged, so that the effect of thermal management on equipment is ensured, meanwhile, the operation condition of the water pump is intuitively known in a feedback mode, the early warning effect of the equipment is improved, and on the premise that the water pump is normal, the external data of the equipment are collected and overheat risk assessment analysis is performed, so that the overheat operation of the equipment is avoided, the protection of electrical elements in a control box is facilitated, meanwhile, the management and control of the temperature during the operation of the equipment are facilitated, the accuracy of an analysis result is facilitated, meanwhile, the management of reasonable and accurate equipment is facilitated, and meanwhile, the accurate thermal management of the equipment is performed in a data feedback mode;
the invention also reasonably manages the equipment in a data analysis and mechanical combination mode, namely, the water pump in the water pump box is controlled to work, so that cooling water flows back to the inside of the water pump box through the liquid guide pipe, the backflow pipe and the circulation pipe, heat generated in the operation process of the equipment is reduced, when the cooling water flows in the liquid guide pipe, the cooling water is enabled to drive the impeller to rotate, the cooling fan is enabled to synchronously rotate, the air flow rate in the air collecting cover is changed, gas enters the circuit protection plate and the control box through the inside of the air guide pipe, heat generated in the circuit protection plate and the control box is taken away by the gas, and meanwhile, dust on the permanent magnet is cleaned by utilizing the heat dissipation gas, so that the heat management effect on the equipment is realized through air cooling under the premise of water cooling and water cooling, and the operation effect of the equipment is improved.
Drawings
The invention is further described below with reference to the accompanying drawings;
FIG. 1 is a perspective view of the structure of the present invention;
FIG. 2 is a top plan view of the structure of the present invention;
FIG. 3 is a schematic view of the structure of the return tube of the present invention;
FIG. 4 is a schematic view of the structure of the air nozzle of the present invention;
FIG. 5 is an enlarged view of area A of FIG. 4 in accordance with the present invention;
FIG. 6 is a side view of the structure of the present invention;
FIG. 7 is a schematic view of the structure of the drive impeller of the present invention;
fig. 8 is a flow chart of the system of the present invention.
Legend description: 1. positioning a base; 2. positioning a side plate; 3. a guide cooling pipe; 4. placing a plate; 5. a control box; 6. a line protection plate; 7. a permanent magnet; 8. a water pump box; 9. a catheter; 10. a return pipe; 11. a circulation pipe; 12. a concentric shaft; 13. a drive impeller; 14. a cooling fan; 15. a wind collecting hood; 16. an air-introducing pipe; 17. a positioning sleeve; 18. an air duct; 19. a hollow plate; 20. a blowing nozzle; 21. and (5) a sleeve plate.
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.
Example 1:
referring to fig. 1 to 8, the invention is a high-power linear motor with intelligent thermal management, comprising a positioning base 1, wherein two ends of the upper surface of the positioning base 1 are fixedly connected with positioning side plates 2, two positioning side plates 2 are symmetrically and fixedly connected with guiding cooling pipes 3, the interiors of the two guiding cooling pipes 3 are hollow, through holes matched with air ducts 18 are formed in the interiors of the placement plates 4, the placement plates 4 are sheathed outside the guiding cooling pipes 3 in a sliding manner, one side of the placement plates 4 is fixedly connected with a control box 5, one side of the control box 5 is fixedly connected with a circuit protection plate 6, the upper surface of the positioning base 1 is positioned below the placement plates 4 and is fixedly connected with a permanent magnet 7, the right end of the positioning base 1 is positioned on the side surface of the positioning side plates 2 and is fixedly connected with a water pump box 8, the interior of the water pump box 8 is provided with a water pump, the upper surface of the water pump box 8 is fixedly inserted with a liquid guide pipe 9, one end of the liquid guide pipe 9 far away from the water pump box 8 penetrates through the inside of the positioning side plate 2 to be fixedly connected with the guide cooling pipes 3, one end of the positioning base 1 far away from the water pump box 8 is fixedly connected with a return pipe 10 positioned on the side surface of the positioning side plate 2, two ends of the return pipe 10 are respectively fixedly connected with the two guide cooling pipes 3, one side of the upper surface of the water pump box 8, which is positioned on the liquid guide pipe 9, is fixedly connected with a circulating pipe 11, one end of the circulating pipe 11 far away from the water pump box 8 penetrates through the inside of the positioning side plate 2 to be fixedly connected with the guide cooling pipes 3 far away from the liquid guide pipe 9, wherein when an alternating current power supply is introduced into the equipment, a traveling wave magnetic field is generated in an air gap, and an electromagnetic thrust is generated under the cutting of the traveling wave magnetic field, the electromagnetic thrust is generated under the action of the current and the magnetic field in the air gap, so that the linear motion of the equipment is realized, the control platform is arranged in the control box 5 and comprises a server, a heat management unit, a preprocessing unit, a fault analysis unit, an early warning unit and an execution unit, when the server generates a supervision instruction, the supervision instruction is sent to the heat management unit and the preprocessing unit, the preprocessing unit immediately collects working data of the water pump in the water pump box 8 after receiving the supervision instruction, the working data comprises running voltage of the water pump and water flow velocity in the guide cooling pipe 3, and carries out safe running supervision analysis on the working data so as to judge whether the water pump in the water pump box 8 runs normally or not, so as to ensure the effect of heat management on equipment, and the specific safe running supervision analysis process is as follows:
the method comprises the steps of collecting the time length from the starting operation time to the ending operation time of a water pump, marking the time length as processing time length, dividing the processing time length into o sub-time nodes, wherein o is a natural number larger than zero, obtaining the operation voltage of the water pump in each sub-time node, comparing the operation voltage with a preset operation voltage threshold value, and marking the ratio of the number of sub-time nodes corresponding to the operation voltage larger than the preset operation voltage threshold value to the total number of sub-time nodes as a voltage risk value, wherein the larger the numerical value of the voltage risk value is, the larger the fault risk of the water pump is;
obtaining the flow velocity of water flow in each sub-time node inside the guide cooling pipe 3, constructing a set A of the flow velocity of water flow, obtaining the difference between the two connected subsets, further marking the average value of the difference between the two connected subsets as an average flow fluctuation value, and comparing the voltage risk value and the average flow fluctuation value with a preset voltage risk value threshold value and a preset average flow fluctuation value which are recorded and stored in the average flow fluctuation value, wherein the average flow fluctuation value is an influence parameter reflecting the working condition of the water pump:
if the voltage risk value is smaller than or equal to a preset voltage risk value threshold value and the average flow fluctuation value is smaller than or equal to a preset average flow fluctuation value, generating a normal signal and sending the normal signal to the thermal management unit;
if the voltage risk value is larger than a preset voltage risk value threshold value or the average flow fluctuation value is larger than a preset average flow fluctuation value, generating an abnormal signal, sending the abnormal signal to an early warning unit, and immediately controlling an alarm lamp on equipment to be a yellow lamp after the early warning unit receives the abnormal signal, so that the running condition of the water pump is intuitively known, and the early warning effect of the equipment is improved.
Example 2:
the heat management unit immediately collects external data of the equipment after receiving the supervision instruction and the normal signal, wherein the external data comprises a friction heat value between the placing plate 4 and the guide cooling pipe 3, a line temperature value inside the line protection plate 6 and a ventilation flow rate inside the control box 5, and the external data is subjected to overheat risk assessment analysis, so that overheat operation of the equipment is avoided, protection of electrical elements inside the control box 5 is facilitated, and meanwhile, control of the temperature during operation of the equipment is facilitated, and the specific overheat risk assessment analysis process is as follows:
acquiring the duration from the starting operation time to the ending operation time of the equipment, marking the duration as a time threshold, dividing the time threshold into i sub-time periods, wherein i is a natural number larger than zero, acquiring the friction heat value between the placing plate 4 and the guide cooling pipe 3 in each sub-time period, wherein the friction heat value refers to the heat value generated by friction between the placing plate 4 and the guide cooling pipe 3, taking the time as an X axis, establishing a rectangular coordinate system with the friction heat value as a Y axis, drawing a friction heat value curve in a dot drawing manner, drawing a preset friction heat value threshold curve in the coordinate system, acquiring the duration and the enclosed area of the friction heat value curve above the preset friction heat value threshold curve, marking the duration and the enclosed area as risk duration and risk area respectively, and further acquiring a unit time area value DM according to the risk duration and the risk area, wherein the larger the unit time area value DM is, the larger the risk of overheat operation of the equipment is required to be described;
obtaining line temperature values in the line protection plate 6 in each sub-time period, constructing a line temperature value set A, obtaining a maximum subset and a minimum subset in the set A, marking the difference between the maximum subset and the minimum subset as a maximum span value, comparing the maximum span value with a preset maximum span value threshold value for analysis, and marking the part of the maximum span value larger than the preset maximum span value threshold value as a risk temperature value FW if the maximum span value is larger than the preset maximum span value threshold value, wherein the risk temperature value FW is an influence parameter reflecting the running state of equipment;
obtaining the ventilation flow rate in the control box 5 in each sub-time period, so as to obtain the average ventilation flow rate in the control box 5 in the time threshold, comparing the average ventilation flow rate with a preset average ventilation flow rate threshold, and if the average ventilation flow rate is smaller than the preset average ventilation flow rate threshold, marking the part of the average ventilation flow rate smaller than the preset average ventilation flow rate threshold as a thermal backlog value, wherein the mark is RJ;
according to the formulaObtaining overheat risk assessment values, wherein a1, a2 and a3 are preset scale factor coefficients of unit time area value, risk temperature value and thermal backlog value respectively, and a1, a2 and a3 are positive numbers larger than zero, and the scale factor coefficients are used for correcting deviation of various parameters in the formula calculation process, so that the calculation result is moreAccurately, a4 is a preset compensation factor coefficient, the value is 1.436, R is an overheat risk evaluation value, and the overheat risk evaluation value R is compared with a preset overheat risk evaluation value threshold value recorded and stored in the overheat risk evaluation value R:
if the overheat risk assessment value R is smaller than or equal to a preset overheat risk assessment value threshold value, no signal is generated;
if the overheat risk assessment value R is larger than the preset overheat risk assessment value threshold value, overheat signals are generated and sent to a fault analysis unit and an execution unit, the execution unit immediately controls a water pump in the water pump box 8 to work after receiving the overheat signals, wherein a concentric shaft 12 is rotatably connected in the water pump box 8, one end of the concentric shaft 12, which is positioned in the water pump box 9, is fixedly sleeved with a transmission impeller 13, one end of the concentric shaft 12, which is positioned outside the water pump box 9, is fixedly sleeved with a cooling fan 14, one end of the concentric shaft 12, which is far away from the water pump box 9, is rotatably connected with a wind collecting cover 15, the side surface of the wind collecting cover 15 is fixedly connected with a gas guide pipe 16, one end of the gas guide pipe 16, which is far away from the wind collecting cover 15, is fixedly connected with a line protection plate 6, the outer part of the gas guide pipe 16 is sleeved with a positioning sleeve 17, the positioning sleeve 17 is fixedly connected with the positioning side plate 2, one side of the control box 5 is fixedly connected with an air duct 18, one end of the air duct 18, which is far away from the control box 5, is fixedly connected with the placement plate 4, one side of the lower surface of the placement plate 4, which is close to the control box 5, is fixedly connected with a hollow plate 19, one side of the hollow plate 19, which is close to the permanent magnet 7, is fixedly connected with a blowing nozzle 20, the lower surface of the placement plate 4 is positioned right above the permanent magnet 7, and is fixedly connected with a sleeve plate 21, namely, when a water pump in the water pump box 8 is controlled to work, the water pump pumps cooling water in the water pump box 8 into the liquid guide pipe 9, flows into the guide cooling pipe 3 after passing through the liquid guide pipe 9, and cools the guide cooling pipe 3 in the process that the cooling water passes through the guide cooling pipe 3 so as to reduce heat generated by friction between the placement plate 4 and the guide cooling pipe 3, the cooling effect is further achieved, cooling water in the guide cooling pipe 3 passes through the return pipe 10 and then enters the guide cooling pipe 3 at the other side, and finally flows back to the water pump box 8 from the circulating pipe 11, so that the cooling water continuously cools the guide cooling pipe 3 and the placing plate 4, and heat generated in the running process of equipment is reduced;
and when the cooling water flows in the liquid guide tube 9, the cooling water is enabled to rotate with the transmission impeller 13, the transmission impeller 13 is enabled to drive the concentric shaft 12 to rotate in the liquid guide tube 9, and the concentric shaft 12 is enabled to drive the cooling fan 14 to synchronously rotate along with the rotation of the concentric shaft 12, the cooling fan 14 is enabled to rotate in the air collecting cover 15, and then the air flow rate in the air collecting cover 15 is changed, the air enters the circuit protection plate 6 through the inside of the air introducing pipe 16, the air takes away the heat generated by the circuit in the circuit protection plate 6, the effect of cooling the circuit is achieved, the air enters the control box 5 from the inside of the circuit protection plate 6, the control box 5 is cooled, finally the air passes through the inside of the air introducing pipe 18, the air blowing nozzle 20 on one side of the hollow plate 19 below the placing plate 4 is used for cleaning dust on the permanent magnet 7 by the heat dissipation air, so that the effect between the permanent magnet 7 and the sleeve plate 21 is improved, and the air cooling effect on the equipment is achieved on the premise of water cooling and the premise that the operation effect of the equipment is improved.
Example 3:
the fault analysis unit immediately collects internal data of the equipment after receiving the risk signal, wherein the internal data comprises running temperature and line damaged area of each electric element in the control box 5, and carries out fault risk prediction evaluation analysis on the internal data, and judges the running fault risk level condition of the equipment so as to manage the equipment reasonably and accurately, thereby improving the running efficiency of the equipment, and simultaneously carrying out accurate thermal management on the equipment in a data feedback mode, wherein the specific fault risk prediction evaluation analysis process is as follows:
acquiring the operation temperature of each electric element in the control box 5 in the time threshold, comparing the operation temperature with a preset operation temperature threshold, and if the operation temperature is larger than the preset operation temperature threshold, marking the number of the electric elements corresponding to the operation temperature larger than the preset operation temperature threshold as an abnormal risk number YC, and acquiring a line damaged area XM in the time threshold control box 5, wherein the line damaged area value XM is the sum of the oxidation area, the cracking area and the bulge area of the line in the control box 5, and the abnormal risk number YC and the line damaged area XM are two influence parameters reflecting the equipment fault risk;
the overheat risk assessment value R is called from the thermal management unit, and then a part of the overheat risk assessment value R which is larger than a preset overheat risk assessment value threshold value is obtained and marked as an overheat interference value, and the reference number is GR;
according to the formulaObtaining fault risk evaluation values, wherein b1, b2 and b4 are respectively preset weight coefficients of an abnormal risk number, a line damaged area and an overheat interference value, b3 is a preset correction coefficient, b1, b2, b3 and b4 are positive numbers larger than zero, G is a fault risk evaluation value, and the fault risk evaluation value G is compared with a preset fault risk evaluation value interval recorded and stored in the fault risk evaluation value G:
if the fault risk assessment value G is smaller than the minimum value in the preset fault risk assessment value interval, generating a primary management and control signal;
if the fault risk assessment value G is located in a preset fault risk assessment value interval, a secondary control signal is generated;
if the fault risk assessment value G is larger than the maximum value in the preset fault risk assessment value interval, generating a third-level control signal, wherein the control degrees corresponding to the first-level control signal, the second-level control signal and the third-level control signal are sequentially increased, the first-level control signal, the second-level control signal and the third-level control signal are sent to an early warning unit, and the early warning unit immediately displays early warning characters corresponding to the first-level control signal, the second-level control signal and the third-level control signal after receiving the first-level control signal, the second-level control signal and the third-level control signal so as to reasonably and accurately manage equipment, improve the operation efficiency of the equipment and accurately heat-manage the equipment in a data feedback mode;
in summary, the invention collects the working data of the water pump in the water pump box 8, and performs the safety operation supervision analysis to determine whether the water pump in the water pump box 8 is operating normally, so as to ensure the effect of thermal management on the equipment, and simultaneously intuitively understand the operation condition of the water pump in a feedback manner, so as to help improve the early warning effect of the equipment, collect the external data of the equipment and perform the overheat risk assessment analysis on the premise that the water pump is normal, avoid the overheat operation of the equipment, help to protect the electrical elements in the control box 5, and simultaneously help to manage the temperature of the equipment during operation, and help to improve the accuracy of the analysis result, and help to manage the equipment reasonably and accurately by evaluating the operation failure risk condition of the equipment in three dimensions of abnormal risk number, line damaged area and overheat interference value, and simultaneously help to perform the accurate thermal management on the equipment in a data feedback manner;
in addition, the reasonable heat management is carried out on the equipment through a mode of data analysis and mechanical combination, namely, the water pump in the water pump box 8 is controlled to work, cooling water is pumped into the liquid guide pipe 9 and flows into the guide cooling pipe 3, then flows back into the water pump box 8 through the backflow pipe 10, the guide cooling pipe 3 and the circulation pipe 11, cooling water is enabled to continuously cool the guide cooling pipe 3 and the placing plate 4, so that heat generated in the operation process of the equipment is reduced, when the cooling water flows in the liquid guide pipe 9, the cooling water is enabled to rotate the water driving impeller 13, the cooling fan 14 is enabled to synchronously rotate, the air flow rate in the air gathering hood 15 is changed, gas enters the circuit protection plate 6 and the control box 5 through the inside of the air guide pipe 16, heat generated in the circuit protection plate 6 and the control box 5 is taken away, and meanwhile dust on the permanent magnet 7 is cleaned by utilizing the gas, and therefore the heat management effect on the equipment is achieved through water cooling and air cooling on the premise that the operation effect of the equipment is improved.
The size of the threshold is set for ease of comparison, and regarding the size of the threshold, the number of cardinalities is set for each set of sample data depending on how many sample data are and the person skilled in the art; as long as the proportional relation between the parameter and the quantized value is not affected. The formulas are all formulas obtained by collecting a large amount of data for software simulation and selecting a formula close to a true value, and coefficients in the formulas are set by a person skilled in the art according to actual conditions.
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 make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (4)
1. The utility model provides a high-power linear electric motor with intelligent thermal management, includes location base (1), its characterized in that, the upper surface both ends of location base (1) are all fixedly connected with location curb plate (2), two symmetrical fixedly connected with direction cooling tube (3) between location curb plate (2), the outside slip of direction cooling tube (3) has cup jointed and has been placed board (4), one side fixedly connected with control box (5) of placing board (4), one side fixedly connected with circuit protection board (6) of control box (5), the upper surface of location base (1) is located the below fixedly connected with permanent magnet (7) of placing board (4), the right-hand member of location base (1) is located the side fixedly connected with pump case (8) of locating curb plate (2);
the upper surface of the water pump box (8) is fixedly inserted with a liquid guide pipe (9), one end of the liquid guide pipe (9), which is far away from the water pump box (8), penetrates through the inside of the positioning side plate (2) and is fixedly connected with the guide cooling pipe (3), one end of the positioning base (1), which is far away from the water pump box (8), is fixedly connected with a return pipe (10) on the side surface of the positioning side plate (2), and one side of the upper surface of the water pump box (8), which is located with the liquid guide pipe (9), is fixedly connected with a circulating pipe (11);
a control platform is arranged in the control box (5), and comprises a server, a thermal management unit, a preprocessing unit, a fault analysis unit, an early warning unit and an execution unit;
when the server generates a supervision instruction, the supervision instruction is sent to the thermal management unit and the preprocessing unit, the preprocessing unit immediately collects working data of the water pump in the water pump box (8) after receiving the supervision instruction, the working data comprise the running voltage of the water pump and the water flow velocity in the guide cooling pipe (3), safety running supervision analysis is carried out on the working data, the obtained normal signal is sent to the thermal management unit, and the abnormal signal is sent to the early warning unit;
the heat management unit immediately collects external data of the equipment after receiving the supervision instruction and the normal signal, wherein the external data comprise a friction heat value between the placing plate (4) and the guide cooling pipe (3), a line temperature value in the line protection plate (6) and a ventilation flow rate in the control box (5), the external data are subjected to overheat risk assessment analysis, the obtained overheat signal is sent to the fault analysis unit and the execution unit, and the execution unit immediately controls the water pump in the water pump box (8) to work after receiving the overheat signal;
the fault analysis unit immediately collects the internal data of the equipment after receiving the risk signals, wherein the internal data comprises the running temperature and the line damaged area of each electric element in the control box (5), performs fault risk prediction evaluation analysis on the internal data, and sends the obtained primary control signals, secondary control signals and tertiary control signals to the early warning unit;
the safety operation supervision and analysis process of the preprocessing unit is as follows:
the first step: the method comprises the steps of collecting the time length from the starting operation time to the ending operation time of a water pump, marking the time length as processing time length, dividing the processing time length into o sub-time nodes, wherein o is a natural number larger than zero, obtaining the operation voltage of the water pump in each sub-time node, comparing the operation voltage with a preset operation voltage threshold value, and marking the ratio of the number of sub-time nodes corresponding to the operation voltage larger than the preset operation voltage threshold value to the total number of sub-time nodes as a voltage risk value;
and a second step of: acquiring the water flow velocity in each sub-time node internal guide cooling pipe (3), constructing a water flow velocity set A, acquiring the difference value between two connected subsets, marking the average value of the difference value between the two connected subsets as an average flow fluctuation value, and comparing the voltage risk value and the average flow fluctuation value with a preset voltage risk value threshold value and a preset average flow fluctuation value which are recorded and stored in the voltage risk value and the average flow fluctuation value:
if the voltage risk value is smaller than or equal to a preset voltage risk value threshold value and the average flow fluctuation value is smaller than or equal to a preset average flow fluctuation value, generating a normal signal;
if the voltage risk value is greater than a preset voltage risk value threshold or the average flow fluctuation value is greater than a preset average flow fluctuation value, generating an abnormal signal;
the overheat risk assessment analysis process of the thermal management unit is as follows:
SS1: acquiring the duration from the starting operation time to the ending operation time of the equipment, marking the duration as a time threshold, dividing the time threshold into i subtime periods, wherein i is a natural number larger than zero, acquiring the friction heat value between a placing plate (4) and a guide cooling pipe (3) in each subtime period, wherein the friction heat value refers to the heat value generated by friction between the placing plate (4) and the guide cooling pipe (3), taking the time as an X axis, taking the friction heat value as a Y axis, establishing a rectangular coordinate system, drawing a friction heat value curve in a dot drawing manner, drawing a preset friction heat value threshold curve in the coordinate system, acquiring the duration and the enclosed area of the friction heat value curve above the preset friction threshold curve, marking the duration and the enclosed area as risk duration and risk area respectively, and further obtaining a unit time area value DM according to the risk duration and the risk area;
SS12: obtaining line temperature values in a line protection plate (6) in each sub-time period, constructing a line temperature value set A, obtaining a maximum subset and a minimum subset in the set A, marking the difference between the maximum subset and the minimum subset as a maximum span value, comparing the maximum span value with a preset maximum span value threshold value, and analyzing, if the maximum span value is larger than the preset maximum span value threshold value, marking the part of the maximum span value larger than the preset maximum span value threshold value as a risk temperature value FW;
SS13: obtaining the ventilation flow rate in the control box (5) in each sub-time period, so as to obtain the average ventilation flow rate in the control box (5) in the time threshold, comparing the average ventilation flow rate with a preset average ventilation flow rate threshold, and if the average ventilation flow rate is smaller than the preset average ventilation flow rate threshold, marking the part of the average ventilation flow rate smaller than the preset average ventilation flow rate threshold as a thermal backlog value RJ;
SS14: obtaining an overheat risk evaluation value R according to a formula, and comparing the overheat risk evaluation value R with a preset overheat risk evaluation value threshold value recorded and stored in the overheat risk evaluation value R:
if the overheat risk assessment value R is smaller than or equal to a preset overheat risk assessment value threshold value, no signal is generated;
if the overheat risk assessment value R is larger than a preset overheat risk assessment value threshold value, an overheat signal is generated;
the fault risk prediction evaluation analysis process of the fault analysis unit is as follows:
step one: acquiring the operation temperature of each electric element in the control box (5) in the time threshold, comparing the operation temperature with a preset operation temperature threshold, if the operation temperature is larger than the preset operation temperature threshold, marking the number of the electric elements corresponding to the operation temperature larger than the preset operation temperature threshold as an abnormal risk number YC, simultaneously acquiring a line damaged area XM in the time threshold control box (5), wherein the line damaged area value XM is the sum of the oxidation area, the cracking area and the bulge area of the line in the control box (5), and simultaneously acquiring an overheat risk evaluation value R from a thermal management unit, and further acquiring a part of the overheat risk evaluation value R larger than the preset overheat risk evaluation value threshold as an overheat interference value GR;
step two: obtaining a fault risk evaluation value G according to a formula, and comparing the fault risk evaluation value G with a preset fault risk evaluation value interval recorded and stored in the fault risk evaluation value G:
if the fault risk assessment value G is smaller than the minimum value in the preset fault risk assessment value interval, generating a primary management and control signal; if the fault risk assessment value G is located in a preset fault risk assessment value interval, a secondary control signal is generated; and if the fault risk assessment value G is larger than the maximum value in the preset fault risk assessment value interval, generating a three-level control signal.
2. The high-power linear motor with intelligent thermal management according to claim 1, wherein the inside rotation of catheter (9) is connected with concentric axle (12), concentric axle (12) are located the inside one end of catheter (9) and fixedly connect transmission impeller (13), and concentric axle (12) are located the outside one end of catheter (9) and fixedly connect cooling fan (14), the one end that catheter (9) was kept away from to concentric axle (12) rotates and is connected with wind gathering cover (15), wind gathering cover (15)'s side fixedly connected with bleed air pipe (16), locating sleeve (17) have been cup jointed to the outside of bleed air pipe (16), and locating sleeve (17) are fixed connection with location curb plate (2), one side fixedly connected with air duct (18) of one side of control box (5), one side that the lower surface of placing board (4) is close to control box (5) is fixedly connected with hollow board (19), one side that hollow board (19) is close to permanent magnet (7) is fixedly connected with blast nozzle (20).
3. The high-power linear motor with intelligent heat management according to claim 1, wherein a water pump is arranged in the water pump box (8), two ends of the return pipe (10) are fixedly connected with the two guide cooling pipes (3) respectively, one end of the circulation pipe (11), far away from the water pump box (8), penetrates through the inner part of the positioning side plate (2) and is fixedly connected with the guide cooling pipe (3) far away from the liquid guide pipe (9), the inner parts of the two guide cooling pipes (3) are cavities, and through holes matched with the air guide pipes (18) are formed in the inner part of the placing plate (4).
4. The high-power linear motor with intelligent heat management according to claim 2, wherein the wind gathering cover (15) is fixedly connected with the side surface of the positioning side plate (2), one end, far away from the wind gathering cover (15), of the air guiding pipe (16) is fixedly connected with the circuit protection plate (6), one end, far away from the control box (5), of the air guiding pipe (18) is fixedly connected with the placing plate (4), and the lower surface of the placing plate (4) is positioned right above the permanent magnet (7) and is fixedly connected with the matching plate (21).
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