CN104234814A - Thermal management system for engine and engineering machine - Google Patents
Thermal management system for engine and engineering machine Download PDFInfo
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- CN104234814A CN104234814A CN201410435940.3A CN201410435940A CN104234814A CN 104234814 A CN104234814 A CN 104234814A CN 201410435940 A CN201410435940 A CN 201410435940A CN 104234814 A CN104234814 A CN 104234814A
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- 230000007246 mechanism Effects 0.000 claims abstract description 37
- 230000001105 regulatory effect Effects 0.000 claims abstract description 12
- 230000001276 controlling effect Effects 0.000 claims abstract description 7
- 238000000034 method Methods 0.000 claims description 19
- 239000000110 cooling liquid Substances 0.000 claims description 15
- 238000004891 communication Methods 0.000 claims description 2
- 238000001514 detection method Methods 0.000 claims 1
- 230000017525 heat dissipation Effects 0.000 abstract description 15
- 230000005855 radiation Effects 0.000 description 15
- 230000008569 process Effects 0.000 description 12
- 238000001816 cooling Methods 0.000 description 11
- 230000003044 adaptive effect Effects 0.000 description 4
- 239000002826 coolant Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
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Abstract
The invention discloses a thermal management system for an engine and an engineering machine. The thermal management system comprises a heat radiator, a fan, a sealed engine compartment, a first temperature detecting device and/or a second temperature detecting device, an opening regulating mechanism and a control unit, wherein the engine and the fan are arranged in the engine compartment; the engine compartment is provided with a controllable air outlet; the control unit is used for controlling the rotation speed state of the fan according to first temperature information output by the first temperature detecting device and the second temperature information output by the second temperature detecting device and/or controlling the opening state of the controllable air outlet by virtue of the opening regulating mechanism so as to enable the engine to be in a preset temperature range. A closed loop mode is adopted for combining heat dissipation of the fan and heat dissipation of an internal flow field of the engine compartment to manage the heat dissipation of the engine, so as to adapt to heat dissipation or heat engine demands of various engine operating conditions in different climatic environments, and power loss can be reduced while the engine can be in the preset temperature range.
Description
Technical field
The present invention relates to engine thermal administrative skill field, particularly a kind of heat management system for motor and engineering machinery.
Background technique
At present, engineering machinery is widely used in the occasions such as road, bridge, city-building, blower fan shipment and petrochemical industry capital construction, and because engineering machinery is often operated in rugged environment, the adaptive capacity to environment of market to engineering machinery has more and more higher requirement.Wherein, the adaptive capacity of motor to various different temperatures environment of engineering machinery is an importance, current, and the motor of General Requirements engineering machinery still can normally work in the working environment of more than 40 DEG C and subzero less than 20 DEG C above freezing.
In prior art, engine cooling system in engineering machinery generally comprises radiator, fan, thermostat, recycle pump etc., in the course of the work, when internal engine temperature (coolant temperature) does not reach thermostat acquiescence working state, cooling liquid is only at engine interior circulation (short circle), heat exchange is carried out by the temperature difference between cooling liquid and motor, when coolant temperature reaches the acquiescence working state of thermostat, thermostat is opened, recycle pump works, the cooling liquid of engine interior is pumped out and returns in motor through radiator inside, form major cycle, fan is driven while engine running, the heat carried out on the radiator of heat exchange with cooling liquid is taken away, cooling liquid after heat radiation reenters in motor carries out heat exchange work again, so repeatedly, to reduce the operating temperature of motor.
In addition, as everyone knows, motor operationally its oil temperature can not too high can not be too low, motor is under different oil temperatures (substantially corresponding to operating temperature and the coolant temperature of motor), the loss of its mechanical output differs greatly, such as, about 10kw is reached sometimes; This mechanical output is lost in when oil temperature is about 90 DEG C less, now accounts for 10% to 25% of engine output; In addition, when engine operation, the power of fan is comparatively large, and substantially increases along with the increase of the rotating speed of motor, such as, reaches about 11.7kw sometimes.
From the foregoing, engineering machinery is often operated in the environment of high temperature, low temperature or the large temperature difference, and goes through winter and summer, but, the radiating mode of existing engine cooling system is comparatively single, is difficult to adapt to the heat radiation of various engine operating condition under different temperatures environment or heat engine needs.
In addition, in motor using process, need to make the operating temperature of motor (oil temperature) be in respective range by fan and radiation system, motor because of the power loss summation of fan and oil temperature larger, therefore, the power loss how reducing motor while making motor be in preferred temperature scope is a technical barrier.
Summary of the invention
In view of this, an object of the present invention aims to provide a kind of heat management system for motor, to adapt to the heat radiation of various engine operating condition under different temperatures environment or heat engine needs preferably, and contribute to the power loss reducing motor while making motor be in preferred temperature scope.
Specifically, this heat management system being used for motor comprises radiator and fan, also comprises: the engine compartment closed, and motor and described fan are arranged in described engine compartment, and described engine compartment offers controlled exhaust outlet; First temperature-detecting device, for detecting the temperature of the cooling liquid flowing through described radiator and exporting the first temperature information, and or, the second temperature-detecting device, exports the second temperature information for the temperature that detects in described engine compartment; Opening adjustment mechanism, for regulating the aperture of described controlled exhaust outlet; Control unit, be connected with described fan, described first temperature-detecting device, described second temperature-detecting device and described opening adjustment mechanism signal respectively, for controlling the rotary regimes of described fan according to described first temperature information and/or described second temperature information and/or being controlled the aperture state of described controlled exhaust outlet by described opening adjustment mechanism, described motor is in predetermined temperature range.
Further, described radiator is arranged on the described engine compartment on front side of described motor, and described fan is arranged between described motor and described radiator.
Further, described controlled exhaust outlet is arranged on the described engine compartment of described motor back side top.
Further, described first temperature-detecting device is be installed on the first temperature transducer away from the side of described engine compartment on described radiator.
Further, described second temperature-detecting device is be installed on the second temperature transducer on described engine compartment inwall.
Further, described opening adjustment mechanism comprises: power source; Solenoid valve, its automatically controlled end is connected with described control unit signal; Regulate cylinder, its retracted position is corresponding with the aperture state of described controlled exhaust outlet; The described rod chamber of adjustment cylinder is communicated with described power source by described solenoid valve with the one in rodless cavity, and another one is by described solenoid valve and circuit communication.
Further, described power source is gas holder, and described adjustment cylinder is cylinder, and described opening adjustment mechanism also comprises for the inflating pump to described gas holder air feed, and described inflating pump is from described engine torque extraction.
Further, the Measuring opening device for detecting described controlled exhaust outlet aperture state is provided with on described engine compartment or on described opening adjustment mechanism, described Measuring opening device is connected with described control unit signal, described control unit comprises at least one of following module: the first puocessing module, for in described engine starting process, when described first temperature information is less than the first predetermined value and/or described second temperature information is less than the second predetermined value, control described fan be in outage state and control described opening adjustment mechanism by described controlled exhaust outlet closedown, or in described engine starting process, when described first temperature information is greater than the 3rd predetermined value or when described second temperature information is greater than the 4th predetermined value, controls described fan and be in predetermined rotary regimes and/or control described opening adjustment mechanism and make described controlled exhaust outlet be in predetermined aperture state, second puocessing module, for in described engine working process, when described first temperature information is greater than the 5th predetermined value and/or described second temperature information is greater than the 6th predetermined value, control the aperture that described opening adjustment mechanism increases described controlled exhaust outlet, and when the aperture of described controlled exhaust outlet reaches maximum, control described fan and be in predetermined rotary regimes, 3rd puocessing module, for after the scheduled time shut down by described motor, controls described opening adjustment mechanism according to the difference of described second temperature information and described first temperature information and makes described controlled exhaust outlet be in predetermined aperture state.
The second object of the present invention is to provide a kind of engineering machinery, effectively to improve the adaptive capacity to environment of this project machinery.
Specifically, this project machinery is provided with the heat management system for motor described in above-mentioned any one.
Further, described engineering machinery is hoist.
After implementing the present invention, on the basis of original fan cooling mode, controlled flow field radiating mode is yet forms both in engine compartment, in use, control unit can according to characterizing the first temperature information of engine temperature state or ambient temperature and/or characterizing the second temperature information of state of temperature in closer-engines cabin, control the rotary regimes of fan and/or controlled the aperture of controlled exhaust outlet on engine compartment by opening adjustment mechanism, motor is in predetermined temperature range.Fan and controlled exhaust outlet can be closed like this in engine starting process, make the rapid heat engine of motor complete startup, reduce because oil temperature promotes the mechanical loss produced comparatively slowly; Also controlled exhaust outlet natural heat dissipation can preferentially be passed through in engine working process, fan cooling is increased again when natural heat dissipation cannot meet heat radiation needs, make the operating temperature of motor be in prespecified range, while the loss of reduction mechanical output, also save fan power; Can also pass through controlled exhaust outlet natural heat dissipation after engine stop, and heat dissipation rate and external temperature environment adapt, and the maintenance temperature of motor is in prespecified range.
From the foregoing, the present invention adopts the mode of closed loop that the heat radiation of the interior flow field in fan cooling and closer-engines cabin is combined and to manage the heat radiation of motor, avoid heat that prior art fan sheds to be difficult to be utilized effectively and motor carries out heat exchange with external environment completely passively except fan cooling, the heat radiation of various engine operating condition under Different climate environment or heat engine needs can be adapted to like this, and the power loss of motor in whole life cycle can be reduced while making motor be in predetermined temperature range.
Accompanying drawing explanation
The accompanying drawing forming a part of the present invention is used to provide a further understanding of the present invention, and schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
The principle schematic of a kind of heat management system for motor that Fig. 1 provides for the embodiment of the present invention.
Description of symbols in figure:
1 first temperature-detecting device
2 radiators
3 fans
4 second temperature-detecting devices
5 motors
6 engine compartments
7 controlled exhaust outlets
8 Measuring opening devices
9 regulate cylinder
10 solenoid valves
11 control units
12 power sources
Embodiment
To it should be pointed out that in this part to the description of concrete structure and description order it is only explanation to specific embodiment, should not be considered as there is any restriction to protection scope of the present invention.In addition, when not conflicting, the embodiment in this part and the feature in embodiment can combine mutually.
Please refer to Fig. 1, below in conjunction with accompanying drawing, the embodiment of the present invention is elaborated.
As shown in the figure, the heat management system for motor of this embodiment can comprise closed engine compartment 6, first temperature-detecting device 1, second temperature-detecting device 4, opening adjustment mechanism and control unit.
Wherein, fan 3 can be driven by motor 5, and concrete structure and the annexation of motor 5, fan 3, radiator 2 and the cooling liquid pipeline between motor 5 and radiator 2 see the associated description of prior art, no longer can be launched at this.
Engine compartment 6 is provided with controlled exhaust outlet 7, motor 5 and fan 3 are positioned at engine compartment 6.First temperature-detecting device 1 is for detecting the temperature of the cooling liquid flowing through radiator 2 and exporting the first temperature information.Second temperature-detecting device 4 is for the temperature that detects in engine compartment 6 and export the second temperature information.Opening adjustment mechanism is for regulating the aperture of controlled exhaust outlet 7.
Control unit 11 is connected with fan 3, first temperature-detecting device 1, second temperature-detecting device 4 and opening adjustment mechanism signal respectively, in Fig. 1, in order to reduce line, and the annexation of not shown control unit 11 and the second temperature-detecting device 4; Control unit 11, for controlling the rotary regimes of fan 3 according to described first temperature information and/or described second temperature information and/or controlled the aperture state of controlled exhaust outlet 7 by opening adjustment mechanism, makes motor 5 be in predetermined temperature range.
In use, fan 1, radiator 2 and the cooling liquid etc. between radiator 2 and motor 5 capable of circulation form fan cooling mode, and after the heat that fan 3 transmits and/or the heat radiation of motor 5 self collect in engine compartment 6, controlled exhaust outlet 7 by engine compartment 6 carries out heat exchange with external environment, namely, on the basis of original fan cooling, in engine compartment 6, yet forms both controlled flow field radiating mode.
Be in predetermined temperature range to make motor 5, control unit 11 according to characterizing the first temperature information of motor 5 state of temperature or ambient temperature state and/or the second temperature information according to state of temperature in sign closer-engines cabin 6, can be controlled the rotary regimes of fan 3 and/or being controlled the aperture of controlled exhaust outlet on engine compartment 6 by opening adjustment mechanism.Fan 3 (rotating speed namely controlling fan 3 is 0) can be closed like this and close controlled exhaust outlet 7 (namely regulating the aperture state of controlled exhaust outlet 7 to be 0 by opening adjusting structure) in motor 5 start-up course, make the rapid heat engine of motor 5 complete startup, reduce because oil temperature promotes the mechanical loss produced comparatively slowly; Also in motor 5 working procedure, preferentially controlled exhaust outlet 7 natural heat dissipation can be passed through, increase fan 3 again when natural heat dissipation cannot meet heat radiation needs to dispel the heat, make the operating temperature of motor 5 be in prespecified range (as in better or best operating temperature range), while the loss of reduction mechanical output, also save fan power; Can also by controlled exhaust outlet 7 natural heat dissipation after motor 5 is shut down; and heat dissipation rate and external temperature environment adapt; the maintenance temperature of motor 5 is in prespecified range, so that can not be too high or too low in long-time temperature of shutting down rear engine 5.
It can thus be appreciated that, compared with prior art, the present invention adopts the mode of closed loop that the heat radiation of the interior flow field in fan cooling and closer-engines cabin 6 is combined and to manage the heat radiation of motor 5, avoid heat that prior art fan sheds to be difficult to be utilized effectively and motor carries out heat exchange with external environment completely passively except fan cooling, the heat radiation of various engine operating condition under Different climate environment or heat engine needs can be adapted to like this, and the power loss of motor 5 in whole life cycle can be reduced while making motor 5 be in predetermined temperature range.
Be understandable that, in motor 5 working procedure, cooling liquid circulates between radiator 2 and motor 5, flow through the temperature of the cooling liquid of radiator 2 etc. substantially with the temperature of motor 5, the oil temperature of motor 5 adapts or corresponding, namely now the temperature of this cooling liquid can reflect the Current Temperatures of motor 5 to a great extent, and in the start-up course of motor 5 in stopping process or after long-time shutdown, because radiator 2 and external environment carry out heat exchange, thus now the temperature of this cooling liquid can reflect the state of temperature of external environment to a great extent, therefore, the first temperature-detecting device 1 can detect the temperature of the cooling liquid flowing through radiator 2 and forms the first temperature information after quantization and send to control unit 11.
In specific implementation process, above-described embodiment can also adopt following at least one optimal way:
One, as shown in Figure 1, radiator 2 can be arranged on front side of motor 5 (with motor in the process of moving towards being as the criterion) engine compartment 6 on, and fan 3 is arranged between motor and radiator, contribute to the radiating efficiency of heat radiation device like this.
On this basis, can also controlled exhaust outlet 7 be arranged on the engine compartment 6 of motor 5 back side top, controlled flow field heat dissipation channel will be formed from front to back in engine compartment 6 like this.
In addition, on this basis, the first temperature-detecting device 1 can adopt the first temperature transducer, and is installed on the front side (namely on radiator 2 away from the side of engine compartment 6) of radiator 2.
Two, the second temperature-detecting device 4 can adopt the second temperature transducer, second temperature transducer can be installed on engine compartment 6 inwall, and such second temperature transducer can obtain the state of temperature (corresponding to the second temperature information) of engine compartment 6 in real time.
Three, as shown in Figure 1, opening adjustment mechanism can comprise power source 12, solenoid valve 10 and adjustment cylinder 9, wherein, the automatically controlled end of solenoid valve 10 is electrically connected with control unit 11, regulate the retracted position of cylinder 9 corresponding with the aperture state of controlled exhaust outlet, the one in the rod chamber of cylinder 9 and rodless cavity is regulated to be communicated with power source 12 by solenoid valve, another one is communicated with loop (scheming not shown) by solenoid valve 10, namely control unit 11 can by changing the working position of solenoid valve 10, and then change the retracted position regulating cylinder 9, thus change the aperture state of controlled exhaust outlet 7.
Power source 12 can adopt gas holder, correspondingly, regulates cylinder 9 to adopt cylinder, regulates the return-air of cylinder 9 to be directly discharged in air under this situation; On this basis, opening adjustment mechanism can also comprise for the inflating pump (scheming not shown) to gas holder air feed, this inflating pump is from motor 5 power taking, such motor 5 in the course of the work, inflating pump can be driven to gas holder air feed, thus make opening adjustment mechanism without the need to by other energy.
Regulate cylinder 9 also can adopt oil hydraulic cylinder, correspondingly, power source 12 also can adopt hydraulic power, and oily to adjustment cylinder 9 supply pressure by solenoid valve 10 by oil hydraulic pump.
It should be noted that, the controlled exhaust outlet 7 of engine compartment 6 can adopt the mode of sliding window or hinged window, namely engine compartment 6 is provided with opening, two sides of forms and this opening along being slidably matched or, the side of the side of forms and this opening is hinged, and the aperture that the position like this by regulating the piston cylinder of cylinder 9 to promote forms can realize controlled exhaust outlet 7 regulates.
Four, Measuring opening device 8 for detecting controlled exhaust outlet 7 aperture state can be set on engine compartment 6 or on opening adjustment mechanism, such as, for the situation shown in Fig. 1, this Measuring opening device 8 can be arranged at the proximity switch regulated on cylinder 9, this proximity switch can detect the retracted position regulating cylinder 9, and then can obtain the aperture status information of corresponding controlled exhaust outlet 7; This Measuring opening fills 8 and is electrically connected on control unit 11, can send the aperture status information of controlled exhaust outlet 7 in real time to control unit 11.
On this basis, control unit 11 can comprise following first puocessing module, at least one in second puocessing module and the 3rd puocessing module, wherein: the first puocessing module is used in motor 5 start-up course, when the first temperature information is less than the first predetermined value and/or is less than the second predetermined value when the second temperature information, control fan 3 is in outage state (rotating speed of fan 3 is 0) and controls opening adjustment mechanism closes controlled exhaust outlet 7 (aperture of controlled exhaust outlet 7 is 0), the quick heat engine needs in the start-up course of motor 5 after long-time shutdown can be adapted to like this, or, first puocessing module is used in motor 5 start-up course, when the first temperature information is greater than the 3rd predetermined value or when the second temperature information is greater than the 4th predetermined value, control fan 3 to be in predetermined rotary regimes and/or to control opening adjustment mechanism and make controlled exhaust outlet 7 be in predetermined aperture state, the heat engine in the start-up course of motor 5 after the short time shuts down and the needs of heat radiation can be taken into account like this.
Second puocessing module is used in motor 5 working procedure, when the first temperature information is greater than the 5th predetermined value and/or the second temperature information is greater than the 6th predetermined value, control the aperture that opening adjustment mechanism increases controlled exhaust outlet 7, and when the aperture of controlled exhaust outlet 7 reaches maximum, control fan 3 and be in predetermined rotary regimes, natural heat dissipation and fan cooling can be made full use of like this in motor 5 working procedure, motor 5 is in predetermined temperature range, and contributes to the available power improving motor 5.
3rd puocessing module is used for after the scheduled time shut down by motor 5, such as, after the shutdown long period, controls opening adjustment mechanism make controlled exhaust outlet 7 be in predetermined aperture state according to the difference of the second temperature information and the first temperature information; Under Different climate environment; such as in summer and winter; second temperature information different with the difference of the first temperature information (winter this difference larger); difference is larger; the aperture of controlled exhaust outlet 7 is less; motor 5 can be made so controllably to carry out natural heat dissipation after a shutdown, so that the temperature after long-time shutdown can not be too high or too low.
In implementation process, above-mentioned each predetermined value such as the first predetermined value, the second predetermined value, the 3rd predetermined value, the 4th predetermined value, the 5th predetermined value and the 6th predetermined value can be set as required, such as, in one case, first predetermined value and the 5th predetermined value can be set to same value, correspondingly, the second predetermined value and the 6th predetermined value also can be set to same value.In addition, control unit 11 can adopt PLC (Programmable Logic Controller, programmable logic controller (PLC)) or relay, solenoid valve circuit etc. to build.
It should be noted that, in at least one optimal way of above-described embodiment, opening adjustment mechanism comprises adjustment cylinder 9, solenoid valve 10 and power source 12, but in other embodiments, be not limited thereto, also other forms can be adopted, as long as the aperture of controlled exhaust outlet 7 can be regulated under the control of the control unit.
It should be noted that, in above-described embodiment, fan 3 is driven by motor 5, and fan 3 can adopt electrical control electric fan, and its automatically controlled end is connected with control unit 11 signal, and such control unit 11 can control the rotary regimes of fan 3; In addition, fan 3 also can adopt hydraulic control fan, and the automatically controlled end of this hydraulic control fan hydraulic side is connected with control unit 11, and such control unit 11 also can adjust the rotating speed of this hydraulic control fan by the state of hydraulic control side.
Other embodiments of the invention additionally provide a kind of engineering machinery, as hoist, this project machinery is provided with the heat management system for motor described in above-described embodiment, because above-mentioned heat management system has above-mentioned technique effect, therefore, the adaptive capacity to environment of this project machinery obtains effective raising, and the specific implementation process of its appropriate section is similar to the above embodiments, the specific implementation process of other parts see the associated description of prior art, hereby can not repeat.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1., for a heat management system for motor, comprise radiator (2) and fan (3), it is characterized in that, also comprise:
The engine compartment (6) closed, motor (5) and described fan (3) are arranged in described engine compartment (6), described engine compartment (6) offer controlled exhaust outlet (7);
First temperature-detecting device (1), flow through the temperature of the cooling liquid of described radiator (2) for detection and export the first temperature information, and/or, second temperature-detecting device (4), exports the second temperature information for the temperature that detects in described engine compartment (6);
Opening adjustment mechanism, for regulating the aperture of described controlled exhaust outlet (7);
Control unit (11), be connected with described fan (3), described first temperature-detecting device (1), described second temperature-detecting device (4) and described opening adjustment mechanism signal respectively, for controlling the rotary regimes of described fan (3) according to described first temperature information and/or described second temperature information and/or being controlled the aperture state of described controlled exhaust outlet (7) by described opening adjustment mechanism, described motor (5) is in predetermined temperature range.
2. heat management system as claimed in claim 1, it is characterized in that, described radiator (2) is arranged on the described engine compartment (6) of described motor (5) front side, and described fan (3) is arranged between described motor (5) and described radiator (2).
3. heat management system as claimed in claim 2, it is characterized in that, described controlled exhaust outlet (7) is arranged on the described engine compartment (6) of described motor (5) back side top.
4. heat management system as claimed in claim 2, it is characterized in that, described first temperature-detecting device (1) is for being installed on the first temperature transducer away from the side of described engine compartment (6) on described radiator (2).
5. heat management system as claimed in claim 1, it is characterized in that, described second temperature-detecting device is for being installed on the second temperature transducer on described engine compartment (6) inwall.
6. the heat management system as described in any one of claim 1 to 5, is characterized in that, described opening adjustment mechanism comprises:
Power source (12);
Solenoid valve (10), its automatically controlled end is connected with described control unit (11) signal;
Regulate cylinder (9), its retracted position is corresponding with the aperture state of described controlled exhaust outlet (7); The rod chamber of described adjustment cylinder (9) is communicated with described power source (12) by described solenoid valve (10) with the one in rodless cavity, and another one is by described solenoid valve (10) and circuit communication.
7. heat management system as claimed in claim 6, it is characterized in that, described power source (12) is gas holder, described adjustment cylinder (9) is cylinder, described opening adjustment mechanism also comprises for the inflating pump to described gas holder air feed, and described inflating pump is from described motor (5) power taking.
8. the heat management system as described in any one of claim 1 to 5, it is characterized in that, the Measuring opening device (8) for detecting described controlled exhaust outlet (7) aperture state is provided with on described engine compartment (6) or on described opening adjustment mechanism, described Measuring opening device (8) is connected with described control unit (11) signal, and described control unit (11) comprises at least one of following module:
First puocessing module, for in described motor (5) start-up course, when described first temperature information is less than the first predetermined value and/or described second temperature information is less than the second predetermined value, controls described fan (3) and be in outage state and control described opening adjustment mechanism described controlled exhaust outlet (7) is closed; Or in described motor (5) start-up course, when described first temperature information is greater than the 3rd predetermined value or when described second temperature information is greater than the 4th predetermined value, controls described fan (3) and be in predetermined rotary regimes and/or control described opening adjustment mechanism and make described controlled exhaust outlet (7) be in predetermined aperture state;
Second puocessing module, for in described motor (5) working procedure, when described first temperature information is greater than the 5th predetermined value and/or described second temperature information is greater than the 6th predetermined value, control the aperture that described opening adjustment mechanism increases described controlled exhaust outlet (7), and when the aperture of described controlled exhaust outlet (7) reaches maximum, control described fan (3) and be in predetermined rotary regimes;
3rd puocessing module; for shutting down after the scheduled time at described motor (5), controlling described opening adjustment mechanism according to the difference of described second temperature information and described first temperature information and making described controlled exhaust outlet (7) be in predetermined aperture state.
9. an engineering machinery, is characterized in that, described engineering machinery is provided with the heat management system for motor described in any one of claim 1 to 8.
10. engineering machinery as claimed in claim 9, it is characterized in that, described engineering machinery is hoist.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410435940.3A CN104234814A (en) | 2014-08-29 | 2014-08-29 | Thermal management system for engine and engineering machine |
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| CN201410435940.3A CN104234814A (en) | 2014-08-29 | 2014-08-29 | Thermal management system for engine and engineering machine |
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| US9896998B2 (en) | 2015-02-20 | 2018-02-20 | Pratt & Whitney Canada Corp. | Compound engine assembly with modulated flow |
| US9932892B2 (en) | 2015-02-20 | 2018-04-03 | Pratt & Whitney Canada Corp. | Compound engine assembly with coaxial compressor and offset turbine section |
| CN111045465A (en) * | 2019-12-27 | 2020-04-21 | 潍柴动力股份有限公司 | Temperature control method, server and system |
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| CN114412626A (en) * | 2022-01-25 | 2022-04-29 | 三一重机有限公司 | Heat dissipation system, mounting and control method thereof, power equipment and working machine |
| CN114810320A (en) * | 2021-06-17 | 2022-07-29 | 长城汽车股份有限公司 | Two-stage fan control method, device, medium and equipment |
| CN115157956A (en) * | 2022-06-16 | 2022-10-11 | 东风汽车集团股份有限公司 | Cabin temperature field safety control method, device and equipment and readable storage medium |
| CN116146325A (en) * | 2023-02-20 | 2023-05-23 | 奇瑞新能源汽车股份有限公司 | Automatic heat dissipation system and control method for engine compartment |
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| CN114412626B (en) * | 2022-01-25 | 2023-08-25 | 三一重机有限公司 | Heat dissipation system, installation method and control method thereof, power equipment and working machine |
| CN115157956A (en) * | 2022-06-16 | 2022-10-11 | 东风汽车集团股份有限公司 | Cabin temperature field safety control method, device and equipment and readable storage medium |
| CN116146325A (en) * | 2023-02-20 | 2023-05-23 | 奇瑞新能源汽车股份有限公司 | Automatic heat dissipation system and control method for engine compartment |
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Application publication date: 20141224 |