CN104076844A - Motor cooling control system and control method - Google Patents
Motor cooling control system and control method Download PDFInfo
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- CN104076844A CN104076844A CN201310103200.5A CN201310103200A CN104076844A CN 104076844 A CN104076844 A CN 104076844A CN 201310103200 A CN201310103200 A CN 201310103200A CN 104076844 A CN104076844 A CN 104076844A
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- motor
- temperature
- cooling
- temperature sensor
- liquid coolant
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Abstract
The invention provides a motor cooling control system and a control method. The system comprises a cooling component, a catheter and a flow control unit. The cooling component is contacted with a motor coil; the catheter is connected with the cooling element; the catheter is provided with a flowing cooling liquid; the flow control unit controls the cooling liquid; the motor coil, the cooling component and the cooling liquid are respectively provided with a first temperature sensor, a second temperature sensor and a third temperature sensor; and the first temperature sensor, the second temperature sensor and the third temperature sensor are respectively connected with the flow control unit. The first temperature sensor, the second temperature sensor and the third temperature sensor are used for measuring temperature of the motor coil, temperature of the cooling component and temperature in the cooling liquid, gradient difference among the three serves as an input parameter of the flow control unit, closed-loop cooling is carried out on the cooling liquid, time advancing amount for adjusting the flow speed of the cooling liquid is improved, and the cooling effects of the motor are improved.
Description
Technical field
The present invention relates to a kind of motor cooling control system and control method.
Background technology
Motor is widely used in precision positioning device, and as the work stage on litho machine, but motor hear rate can cause variety of issue: as circumferential component expansion can cause alignment error; Air refraction change can cause the noise of precision measurement system; Coil resistance causes heat generation, and this heat can further cause larger resistance.
Because litho machine field is especially harsh to the requirement of environment, therefore need to keep motor appearance constant temperature, temperature deviation is within the scope of 0.1 DEG C, and for moving winding motor, its hear rate power reaches 2 kilowatts of left and right conventionally, therefore conventionally need a kind of cooling device, as shown in Figure 1, this device comprises a cooling element directly contacting with thermal source motor coil, described cooling element has the effect of heat conduction non-conducting, cooling element and environmental exposure, it is the major control target of cooling system that its outside surface keeps constant temperature, cooling element intermediate configurations can be for the conduit of coolant flow, the heat that motor is produced that flows of liquid coolant is delivered to outside system, the attribute of liquid coolant, flow velocity and flow will determine cooling effectiveness.
Described cooling element is as the cushion of motor thermal source and environment, and its elementary heat propagation formula is as follows:
W=Cp ρ ν A Δ T, wherein, W is heat power consumption, and Cp is fluid particular thermal parameter, and ρ is density, and ν is flow velocity, and A is cooling surface, and Δ T is that liquid coolant heats up.
At present, motor cooling control system is for reaching cooling effect, normally using liquid coolant as thermostatic control object, please continue to refer to Fig. 1, concrete grammar comprises: use liquid coolant by the conduit around coil by heat absorption and take away, comprise a temperature control equipment, in order to regulate the temperature of liquid coolant, make its arrive motor design temperature (such as: 23 DEG C), a pressure adjustment assembly, in order to regulate heat power to arrive saturation pressure corresponding during with this design temperature in liquid coolant, once this means that liquid coolant absorbs after motor heat, to reach boiling point, liquid coolant is in boiling point, mean that temperature and pressure is in heat power dependence state, liquid coolant converts intermolecular potential to after absorbing motor heat, it is constant that temperature keeps.But because power of motor constantly changes, heat dissipation changes with load, and liquid coolant physical attribute has limited absorbent maximum heat, from above-mentioned hot propagation formula, wish restriction heats up and certainly will improve flow or reduce power consumption, a way that improves flow is to improve flow velocity, and how cooling liquid speed adapts to the problem that the dynamic change of hear rate is individual needs solution.
Summary of the invention
The object of the present invention is to provide a kind of motor cooling control system and control method, to make flow velocity in motor cooling control system can adapt to preferably the variation of motor load and heat.
For solving the problems of the technologies described above, the invention provides a kind of motor cooling control system and control method, described motor cooling control system comprises: cooling element, conduit and flow controlling unit, described cooling element contacts with motor coil, described conduit is connected with described cooling element, in described conduit, be provided with mobile liquid coolant, described flow controlling unit is controlled described liquid coolant, described motor coil, in cooling element and liquid coolant, be respectively equipped with first, second and three-temperature sensor, described first, second is connected with described flow controlling unit respectively with three-temperature sensor.
Preferably, described flow controlling unit comprises controller, pressure adjustment assembly and temperature control equipment, and described first, second, and third temperature sensor and pressure adjustment assembly are connected with described controller respectively with temperature control equipment.
Preferably, also comprise liquid pump, described liquid pump is connected with one end of described conduit.
Preferably, described controller is connected with described liquid pump.
The present invention also provides a kind of motor cooling control control method, is applied to motor cooling control system as above, and its step comprises:
S1: described first, second, and third temperature sensor is measured respectively the temperature of described motor coil, cooling element and liquid coolant;
S2: the variable gradient that calculates motor coil, cooling element and the liquid coolant three temperature surveyed in S1 step;
S3: the input parameter using the variable gradient of S2 step gained as described flow controlling unit;
S4: described flow controlling unit carries out respectively the adjusting of flow, pressure and temperature to liquid coolant;
S5: the step of circulation S1 to S4, until the temperature that described first, second, and third temperature sensor is surveyed is identical.
Compared with prior art, the present invention has the following advantages: motor cooling control system provided by the invention and control method, this system comprises: cooling element, conduit and flow controlling unit, described cooling element contacts with motor coil, described conduit is connected with described cooling element, in described conduit, be provided with mobile liquid coolant, described flow controlling unit is controlled described liquid coolant, described motor coil, in cooling element and liquid coolant, be respectively equipped with first, second and three-temperature sensor, described first, second is connected with described flow controlling unit respectively with three-temperature sensor.The present invention utilizes described first, second, and third temperature sensor respectively the temperature in described motor coil, cooling element and liquid coolant to be measured, and utilize gradient difference between the three input parameter as flow controlling unit, described liquid coolant is carried out to closed loop cooling, improve the Timing Advance that regulates described cooling liquid speed, thereby improve the radiating effect of motor.
Brief description of the drawings
Fig. 1 is the block diagram of existing motor cooling control system;
Fig. 2 is the block diagram of the motor cooling control system of the embodiment of the invention;
Fig. 3 is the structural representation of the motor cooling control system of the embodiment of the present invention one;
Fig. 4 is the structural representation of the motor cooling control system of the embodiment of the present invention two;
Fig. 5 is the structural representation of the motor cooling control system of the embodiment of the present invention three;
Fig. 6 is the process flow diagram of the motor cooling control method of the embodiment of the invention.
In figure: 11,21,31-motor coil, 12,22,32-cooling element, 13,23,33-conduit.
Embodiment
The motor cooling control system and the control method that the present invention are proposed below in conjunction with the drawings and specific embodiments are described in further detail.According to the following describes and claims, advantages and features of the invention will be clearer.It should be noted that, accompanying drawing all adopts very the form of simplifying and all uses non-ratio accurately, only in order to convenient, the object of the aid illustration embodiment of the present invention lucidly.
Embodiment 1
Motor cooling control system provided by the invention, as shown in Figure 2, and in conjunction with Fig. 3, described motor cooling control system comprises: cooling element 12, conduit 13 and flow controlling unit, described cooling element 12 contacts with motor coil 11, described conduit 13 is connected with described cooling element 12, preferably, described conduit 13 is interspersed in the inside of described cooling element 12, in described conduit 13, be provided with mobile liquid coolant, described flow controlling unit is controlled described liquid coolant, described motor coil 11, in cooling element 12 and liquid coolant, be respectively equipped with first, second and three-temperature sensor, described first, second is connected with described flow controlling unit respectively with three-temperature sensor, in the present embodiment, coil in motor is circular coil, accordingly, described the first temperature sensor is located at described circular coil outside, described the second temperature sensor is located at described circular coil and described cooling element 12 touching positions, described three-temperature sensor is located in the liquid coolant in described conduit 13, the temperature that described three-temperature sensor is recorded more approaches the temperature of described liquid coolant.
Preferably, please continue to refer to Fig. 2 and Fig. 3, described flow controlling unit comprises controller, pressure adjustment assembly and temperature control equipment, described first, second, and third temperature sensor and pressure adjustment assembly are connected with described controller respectively with temperature control equipment, the temperature that described first, second, and third temperature sensor records is as the feedback of described controller, foundation while regulating the flow of described liquid coolant and temperature as controller, improve the Timing Advance that regulates described coolant flow speed, can further improve the radiating effect of motor.
Preferably, please continue to refer to Fig. 2 and Fig. 3, described motor cooling control system also comprises liquid pump, described liquid pump is connected with one end of described conduit 13, and particularly, described controller is connected with described liquid pump, like this, described controller can be by described liquid pump is controlled, and then regulate the flow of described liquid coolant, makes the flow of described liquid coolant can better adapt to the variation of described motor load and heat.
Please refer to Fig. 2, Fig. 3 and Fig. 6, the present invention also provides a kind of motor cooling control control method, is applied to motor cooling control system as above, and its step comprises:
S1: described first, second, and third temperature sensor is measured respectively the temperature of described motor coil 11, cooling element 12 and liquid coolant, the temperature of remembering described motor coil 11 is Ts, and the temperature of described cooling element 12 is Te, and the temperature of described liquid coolant is Tw;
S2: the variable gradient (Ts-Te, Te-Tw) that calculates motor coil 11, cooling element 12 and the liquid coolant three temperature surveyed in S1 step;
S3: the input parameter using the variable gradient (Ts-Te, Te-Tw) of S2 step gained as described controller;
S4: described controller carries out respectively the adjusting of flow, pressure and temperature to described liquid coolant by liquid pump, pressure adjustment assembly and temperature control equipment;
S5: the step of circulation S1 to S4, until the temperature that described first, second, and third temperature sensor is surveyed is identical, reaches motor coil 11 perfect condition that the temperature remains within the normal range.
Conventionally, motor is under function situation, Ts, Te, temperature difference between Tw three fluctuates in certain scope, but along with the variation of motor load, there is larger fluctuation in the missionary society of these three parameters, by being changed (Ts-Te, Te-Tw) as the foundation of controlling coolant rate and temperature, can improve the Timing Advance that regulates coolant flow speed, effectively improve the susceptibility of motor cooling control system to temperature variation, thereby improve the reaction efficiency of system, and then the radiating effect of raising motor, and it is cooling that use liquid coolant is carried out closed loop, by the graded of above-mentioned controller input parameter, adjust coolant pressure, boiling point critical temperature is reduced, can further improve radiating effect.
It should be noted that: the temperature T s of the motor coil 11 of mentioning in the present invention, the temperature T e of cooling element 12, the temperature T w of liquid coolant is medial temperature, can record multiple temperature values of diverse location point by multiple first, second and three-temperature sensors are set in corresponding position, then obtain the medial temperature of needs by the mode of averaging.
Embodiment 2
Please refer to Fig. 3, the distinctive points of the present embodiment and embodiment 1 is, coil in motor is flat coil, accordingly, described the first temperature sensor is located at described motor coil 21, be arranged in the flat coil in centre position, described the second temperature sensor is located at described flat coil and described cooling element 22 touching positions, and described three-temperature sensor is located in the liquid coolant in described conduit 23.
Embodiment 3
Please refer to Fig. 4, the distinctive points of the present embodiment and embodiment 1 is, coil in motor is two flat coils, accordingly, described the first temperature sensor is located at described motor coil 31, be arranged in two groups of flat coils in centre position, described the second temperature sensor is located at described flat coil and described cooling element 32 touching positions, and described three-temperature sensor is located in the liquid coolant in described conduit 33.
To sum up, the motor cooling control system and the control method that provide in the embodiment of the present invention, this system comprises: cooling element, conduit and flow controlling unit, described cooling element contacts with motor coil, described conduit is connected with described cooling element, in described conduit, be provided with mobile liquid coolant, described flow controlling unit is controlled described liquid coolant, described motor coil, in cooling element and liquid coolant, be respectively equipped with first, second and three-temperature sensor, described first, second is connected with described flow controlling unit respectively with three-temperature sensor.The present invention utilizes described first, second, and third temperature sensor respectively the temperature in described motor coil, cooling element and liquid coolant to be measured, and utilize gradient difference between the three input parameter as flow controlling unit, described liquid coolant is carried out to closed loop cooling, improve the Timing Advance that regulates described cooling liquid speed, thereby improve the radiating effect of motor.
Foregoing description is only the description to preferred embodiment of the present invention, the not any restriction to the scope of the invention, and any change, modification that the those of ordinary skill in field of the present invention does according to above-mentioned disclosure, all belong to the protection domain of claims.
Claims (5)
1. a motor cooling control system, comprise: cooling element, conduit and flow controlling unit, described cooling element contacts with motor coil, described conduit is connected with described cooling element, in described conduit, be provided with mobile liquid coolant, described flow controlling unit is controlled described liquid coolant, it is characterized in that, in described motor coil, cooling element and liquid coolant, be respectively equipped with first, second, and third temperature sensor, described first, second, and third temperature sensor is connected with described flow controlling unit respectively.
2. motor cooling control system as claimed in claim 1, it is characterized in that, described flow controlling unit comprises controller, pressure adjustment assembly and temperature control equipment, and described first, second, and third temperature sensor and pressure adjustment assembly are connected with described controller respectively with temperature control equipment.
3. motor cooling control system as claimed in claim 1, is characterized in that, also comprises liquid pump, and described liquid pump is connected with one end of described conduit.
4. motor cooling control system as claimed in claim 3, is characterized in that, described controller is connected with described liquid pump.
5. the cooling control control method of motor, is applied to the motor cooling control system as described in any one in claim 1 to 4, it is characterized in that, its step comprises:
S1: described first, second, and third temperature sensor is measured respectively the temperature of described motor coil, cooling element and liquid coolant;
S2: the variable gradient that calculates motor coil, cooling element and the liquid coolant three temperature surveyed in S1 step;
S3: the input parameter using the variable gradient of S2 step gained as described flow controlling unit;
S4: described flow controlling unit carries out respectively the adjusting of flow, pressure and temperature to liquid coolant;
S5: the step of circulation S1 to S4, until the temperature that described first, second, and third temperature sensor is surveyed is identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310103200.5A CN104076844B (en) | 2013-03-27 | 2013-03-27 | A kind of control method of motor cooling control system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310103200.5A CN104076844B (en) | 2013-03-27 | 2013-03-27 | A kind of control method of motor cooling control system |
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| CN104076844A true CN104076844A (en) | 2014-10-01 |
| CN104076844B CN104076844B (en) | 2016-08-24 |
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| CN201310103200.5A Active CN104076844B (en) | 2013-03-27 | 2013-03-27 | A kind of control method of motor cooling control system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105604985A (en) * | 2016-02-18 | 2016-05-25 | 上海交通大学 | Temperature distribution measuring method of shielded nuclear main pump cooling system |
| CN107102661A (en) * | 2017-06-01 | 2017-08-29 | 上海乾秀能源科技有限公司 | Generator cooling system and its control method |
| WO2023039808A1 (en) * | 2021-09-16 | 2023-03-23 | 宁德时代新能源科技股份有限公司 | Method and apparatus for over-temperature protection on power device of electric motor controller |
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| JP2006121780A (en) * | 2004-10-19 | 2006-05-11 | Mitsubishi Motors Corp | Cooler for motor |
| CN101009453A (en) * | 2006-01-26 | 2007-08-01 | 深圳市大族精密机电有限公司 | Dynamic coil linear motor |
| CN201328049Y (en) * | 2008-12-18 | 2009-10-14 | 吉林庆达数码有限公司 | Electric motor cooling device |
| CN102594021A (en) * | 2011-01-14 | 2012-07-18 | 瑞美技术有限责任公司 | Electric machine with integrated coolant temperature sensor |
| CN202405953U (en) * | 2011-11-29 | 2012-08-29 | 上海海光电机有限公司 | Permanent magnet motor with automatic control cooling system |
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2013
- 2013-03-27 CN CN201310103200.5A patent/CN104076844B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006121780A (en) * | 2004-10-19 | 2006-05-11 | Mitsubishi Motors Corp | Cooler for motor |
| CN101009453A (en) * | 2006-01-26 | 2007-08-01 | 深圳市大族精密机电有限公司 | Dynamic coil linear motor |
| CN201328049Y (en) * | 2008-12-18 | 2009-10-14 | 吉林庆达数码有限公司 | Electric motor cooling device |
| CN102594021A (en) * | 2011-01-14 | 2012-07-18 | 瑞美技术有限责任公司 | Electric machine with integrated coolant temperature sensor |
| CN202405953U (en) * | 2011-11-29 | 2012-08-29 | 上海海光电机有限公司 | Permanent magnet motor with automatic control cooling system |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105604985A (en) * | 2016-02-18 | 2016-05-25 | 上海交通大学 | Temperature distribution measuring method of shielded nuclear main pump cooling system |
| CN107102661A (en) * | 2017-06-01 | 2017-08-29 | 上海乾秀能源科技有限公司 | Generator cooling system and its control method |
| WO2023039808A1 (en) * | 2021-09-16 | 2023-03-23 | 宁德时代新能源科技股份有限公司 | Method and apparatus for over-temperature protection on power device of electric motor controller |
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| Publication number | Publication date |
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| CN104076844B (en) | 2016-08-24 |
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Address after: 201203 Pudong New Area East Road, No. 1525, Shanghai Patentee after: Shanghai microelectronics equipment (Group) Limited by Share Ltd Address before: 201203 Pudong New Area East Road, No. 1525, Shanghai Patentee before: Shanghai Micro Electronics Equipment Co., Ltd. |