CN211500785U - Engine heat management system and automobile - Google Patents
Engine heat management system and automobile Download PDFInfo
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- CN211500785U CN211500785U CN201922189785.2U CN201922189785U CN211500785U CN 211500785 U CN211500785 U CN 211500785U CN 201922189785 U CN201922189785 U CN 201922189785U CN 211500785 U CN211500785 U CN 211500785U
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- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
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Abstract
The utility model belongs to the technical field of automobile waste heat utilization, in particular to an engine heat management system and an automobile, wherein the engine heat management system comprises an engine, a temperature sensor, an electronic thermostat, a phase change energy accumulator, a three-way electromagnetic valve, a two-way electromagnetic valve, a flow control valve, a two-way temperature sensor, a radiator, a two-way phase change energy accumulator, a warm core body, a control unit, a water pump and an oil cooler; a cooling water jacket is arranged in the engine, the first temperature sensor is used for collecting the temperature of cooling liquid at a water outlet of the cooling water jacket, and the second temperature sensor is used for collecting the temperature of the cooling liquid at the water outlet of the flow control valve. This engine heat management system can not only retrieve the partial waste heat that the engine coolant liquid gived off under the normal operating condition of engine, can also be in the engine and cool off the waste heat after retrieving under the flameout hot dipping, more do benefit to the cooling, can utilize the waste heat to carry out functions such as warm-up, defrosting defogging and carriage preheat.
Description
Technical Field
The utility model belongs to the technical field of the automobile waste heat utilization, especially, relate to an engine heat management system and car.
Background
Relevant researches show that the heat equivalent of the automobile engine converted into effective work accounts for about 30% of the combustion heat quantity of fuel, most other energy is radiated by cooling water of the engine and high-temperature tail gas, and the waste heat is basically wasted. With the increasing shortage of energy supply, the energy conservation and emission reduction problems of automobiles are concerned, and the utilization of the waste heat of engines is a necessary trend. At present, the development and application of the engine waste heat utilization technology are still in a starting stage, and the improvement of the utilization rate of energy through various modes directly or indirectly is the most effective way for dealing with the current energy crisis.
The existing use of the automobile waste heat is easy to cause the contradiction between heat energy supply and demand unbalance, thereby leading to the problem of waste heat storage. The phase-change energy storage is an energy-saving technology with the best prospect in the energy storage technology, and stores and releases energy by utilizing the principle that phase-change heat storage materials such as calcium chloride hexahydrate, paraffin, barium hydroxide octahydrate and the like are accompanied by absorption or release of larger energy in the processes of solidification/melting, condensation/gasification and other forms of phase change.
The traditional engine cooling liquid phase change waste heat absorption working condition is single, mainly absorbs heat on a small circulation flow path under the normal work of an engine, but does not consider absorbing the heat under the working condition of flameout and high-temperature hot dipping of the engine, and because the waste heat in the engine cannot be dissipated in time after the engine is shut down, an electronic fan and a water pump with high rotating speed are required to dissipate heat, so that the power consumption is increased by after cooling.
In addition, the traditional engine coolant has single waste heat utilization, and most of the traditional engine coolant only meets the warming function. And the window glass often appears freezing and fogging under the low temperature environment winter, influences the safety of traveling, and the temperature is low in the car, and other functions are just started after the traditional car satisfies the vehicle warm-up.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: the engine heat management system and the automobile are provided aiming at the problem that the existing engine coolant waste heat is single in utilization and only meets the warming function.
In order to solve the technical problem, on the one hand, an embodiment of the present invention provides an engine thermal management system, which includes an engine, a temperature sensor, an electronic thermostat, a phase change energy accumulator, a three-way electromagnetic valve, a flow control valve, a temperature sensor, a radiator, a phase change energy accumulator, a warm core, a control unit, a water pump and an oil cooler; a cooling water jacket is arranged in the engine, the first temperature sensor is used for collecting the temperature of cooling liquid at a water outlet of the cooling water jacket, and the second temperature sensor is used for collecting the temperature of the cooling liquid at the water outlet of the flow control valve;
the control unit is respectively connected with the first temperature sensor, the electronic thermostat, the first three-way electromagnetic valve, the second three-way electromagnetic valve, the flow control valve, the second temperature sensor, the fan and the water pump through cables;
the water inlet of the first phase change energy accumulator is connected with the first water outlet of the electronic thermostat, the water outlet of the first phase change energy accumulator is connected with the first port of the second three-way electromagnetic valve, the second port of the second three-way electromagnetic valve is connected with the water inlet of the flow control valve, the water outlet of the flow control valve is connected with the water inlet of the second phase change energy accumulator, and the water outlet of the second phase change energy accumulator is connected with the water inlet of the warm core body; the second port of the second three-way electromagnetic valve is connected with the first port of the first three-way electromagnetic valve, and the second port of the first three-way electromagnetic valve is connected with the water inlet of the oil cooler; the second water outlet of the electronic thermostat is connected with the water inlet of the radiator; and the water outlet of the radiator, the water outlet of the warming core body, the third port of the first three-way electromagnetic valve and the water outlet of the oil cooler are respectively connected with the water inlet of the water pump.
Optionally, the radiator includes an external heat exchanger and a fan for radiating heat of the external heat exchanger, the second water outlet of the electronic thermostat is connected to the water inlet of the external heat exchanger, the water outlet of the external heat exchanger is connected to the water inlet of the water pump, and the control unit is connected to the fan through a cable.
Optionally, the fan is an electronic fan.
Optionally, the first temperature sensor is mounted on the engine.
Optionally, the oil cooler is mounted on the engine.
Optionally, the second temperature sensor is connected between the flow control valve and the second phase change accumulator.
Optionally, the water pump is an electronic water pump.
Optionally, the phase change temperature of the first phase change energy accumulator is 65 ℃, and the phase change temperature of the second phase change energy accumulator is 75 ℃.
Optionally, the opening temperature of the second water outlet of the electronic thermostat is 100 ℃.
The utility model discloses engine heat management system through arranging a phase change energy storage ware and No. two phase change energy storage ware on little circulating flow path and warm core body are propped up respectively, can not only retrieve the partial waste heat that engine coolant liquid distributed out under the normal operating condition of engine, can also retrieve the aftercooling waste heat under the engine is in flameout hot dipping, more does benefit to the cooling, effectively reduces the consumption of aftercooling fan, water pump simultaneously.
When the engine needs to be preheated during cold start under the low-temperature condition, the heat stored in the phase-change materials of the first phase-change energy accumulator and the second phase-change energy accumulator can be transferred to the engine, the engine oil and the cooling liquid are quickly heated, the engine reaches the normal working temperature in advance, and therefore the emission of harmful substances is reduced. The window glass is easy to freeze and fog in winter, the running safety is affected, heat stored in phase change materials of the first phase change energy accumulator and the second phase change energy accumulator can be utilized, an engine thermal management system is coordinated to defrost and demist in advance, and the vehicle warming in advance is assisted. Therefore, the recovery of the waste heat of the engine can be effectively controlled, and the functions of warming, defrosting, demisting, compartment preheating and the like can be performed by utilizing the waste heat.
The control unit controls each electronic component, so that intelligent control of engine cooling is realized, cooling waste heat of the engine is recovered more reasonably, and the running state of each component of the whole vehicle is maintained in a good state.
The engine heat management system is suitable for fuel vehicles and hybrid electric vehicles.
On the other hand, the embodiment of the utility model provides an automobile, it includes foretell engine heat management system.
Drawings
Fig. 1 is a schematic diagram of an engine thermal management system according to an embodiment of the present invention.
The reference numerals in the specification are as follows:
1. an engine; 2. a first temperature sensor; 3. an electronic thermostat; 4. a first phase change accumulator; 5. a first three-way electromagnetic valve; 6. a second three-way electromagnetic valve; 7. a flow control valve; 8. a second temperature sensor; 9. a fan; 10. a heat sink; 11. a second phase change accumulator; 12. a warm core body; 13. a control unit; 14. a water pump; 15. and (7) an oil cooler.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1, the embodiment of the utility model provides an engine heat management system, including engine 1, a temperature sensor 2, electronic thermostat 3, a phase change energy storage ware 4, a three-way solenoid valve 5, No. two three-way solenoid valves 6, flow control valve 7, No. two temperature sensor 8, radiator, No. two phase change energy storage ware 11, warm core 12, the control unit 13, water pump 14 and oil cooler 15.
The phase change energy accumulator is a device for storing and releasing heat by using phase change latent heat of a phase change material (PCM, which is a substance capable of changing phase when the temperature of the environment changes, and can absorb or release heat when the PCM changes phase), and is a conventional technology. And a cooling liquid flow channel isolated from the phase-change material through the inner barrel is also arranged in the shell, and the cooling liquid flow channel is contacted with the wall of the inner barrel, so that the heat exchange between the cooling liquid and the phase-change material is realized.
A cooling water jacket is arranged in the engine 1, the first temperature sensor 2 is used for collecting the temperature of cooling liquid at a water outlet of the cooling water jacket, and the second temperature sensor 8 is used for collecting the temperature of the cooling liquid at the water outlet of the flow control valve 7. Preferably, the first temperature sensor 2 is mounted on the engine 1.
The control unit 13 is respectively connected with the first temperature sensor 2, the electronic thermostat 3, the first three-way electromagnetic valve 5, the second three-way electromagnetic valve 6, the flow control valve 7, the second temperature sensor 8, the radiator and the water pump 14 through cables.
The water inlet of the first phase change energy accumulator 4 is connected with the first water outlet of the electronic thermostat 3, the water outlet of the first phase change energy accumulator 4 is connected with the first port of the second three-way electromagnetic valve 6, the second port of the second three-way electromagnetic valve 6 is connected with the water inlet of the flow control valve 7, the water outlet of the flow control valve 7 is connected with the water inlet of the second phase change energy accumulator 11, and the water outlet of the second phase change energy accumulator 11 is connected with the water inlet of the warm core body 12; a second port of the second three-way electromagnetic valve 6 is connected with a first port of the first three-way electromagnetic valve 5, and a second port of the first three-way electromagnetic valve 5 is connected with a water inlet of the oil cooler 15; a second water outlet of the electronic thermostat 3 is connected with a water inlet of the radiator; and the water outlet of the radiator, the water outlet of the warm core body 12, the third port of the first three-way electromagnetic valve 5 and the water outlet of the oil cooler 15 are respectively connected with the water inlet of the water pump 14.
In an embodiment, the radiator includes an external heat exchanger 10 and a fan 9 for radiating heat of the external heat exchanger 10, a second water outlet of the electronic thermostat 3 is connected to a water inlet of the external heat exchanger 10, a water outlet of the external heat exchanger 10 is connected to a water inlet of the water pump 14, and the control unit 13 is connected to the fan 9 through a cable. Preferably, the fan 9 is an electronic fan, and the water pump 14 is an electronic water pump, so that the control unit 13 can perform electronic control.
In one embodiment, the first temperature sensor 2 is mounted on the engine 1.
In one embodiment, the second temperature sensor 8 is connected between the flow control valve 7 and the second phase change accumulator 11.
The flow control valve 7, the second phase change energy accumulator 11, the warm core body 12 and the pipeline connecting the two form a warm core body branch, the oil cooler 15 and the pipelines at the two ends form an oil cooler branch, a loop formed by the electronic thermostat 3, the first phase change energy accumulator 4, the first three-way electromagnetic valve 5, the second three-way electromagnetic valve 6, the water pump 14 and the cooling water jacket is a small circulation flow path, and a loop formed by the electronic thermostat 3, the external heat exchanger 10, the water pump 14 and the cooling water jacket is a large circulation flow path.
In one embodiment, the phase change temperature of the first phase change energy accumulator 4 is 65 ℃ and the phase change temperature of the second phase change energy accumulator 11 is 75 ℃. Like this, No. one phase change energy storage ware 4 and No. two phase change energy storage ware 11 arrange respectively on little circulating flow way and warm core body branch road, the recovery of effective control waste heat realizes the reasonable cooperation of warm-up, defrosting defogging, carriage preheating.
The utility model discloses its theory of operation of engine heat management system is as follows:
when the engine 1 normally works, the control unit 13 controls the electronic thermostat 3, the first three-way electromagnetic valve 5 and the second three-way electromagnetic valve 6 to synchronously work, the electronic thermostat 3 compares the set target temperature with the temperature collected by the first temperature sensor 2, and then the opening degree of the large and small circulating flow paths is controlled. In order to fully recover the waste heat by using the phase change energy accumulators (the first phase change energy accumulator 4 and the second phase change energy accumulator 11), the opening temperature of the large circulation flow path of the electronic thermostat 3 (the opening temperature of the second water outlet of the electronic thermostat 3) is higher than the temperature set by the cooling system of the conventional vehicle, for example, the opening temperature of the second water outlet of the electronic thermostat 3 can be set at 100 ℃. Meanwhile, the control unit 13 judges whether warm air is needed, if not, the flow control valve 7 of the warm core branch is directly closed, the cooling liquid with higher temperature passes through the first phase change energy accumulator 4 to exchange heat with the phase change material with lower temperature, the heat energy is stored in the first phase change energy accumulator 4, the first phase change energy accumulator 4 is always in the energy storage process in the running process of the engine 1, and when the temperature of the energy storage material is the same as that of the cooling liquid, the energy storage is automatically finished; if the warm air is needed, the flow control valve 7 of the warm core branch is opened, the control unit 13 controls the opening degree of the flow control valve 7 in real time by collecting the temperature of the second temperature sensor 8, the temperature of the cooling liquid on the warm core branch is adjusted, and meanwhile, part of heat is stored through the second phase-change energy accumulator 11.
When the engine 1 is shut down after operating for a long time or under a high-speed, large-load condition, the coolant in the engine 1 continues to be heated due to the heat capacity and thermal inertia of the engine 1, and the temperature rises. The control unit 13 determines whether to enter post-cooling control according to the temperature of the coolant collected by the first temperature sensor 2. When the temperature of a water outlet of the engine coolant flow is higher than 110 ℃, the electronic thermostat 3 opens a large circulation flow path, the second three-way electromagnetic valve 6 is opened, the first three-way electromagnetic valve 5 is closed, meanwhile, the control unit 13 controls the opening degree of the flow control valve 7 on the warm core body branch to be maximum, the water pump 14 runs at a lower flow rate, and the first phase change energy accumulator 4 and the second phase change energy accumulator 11 are used for absorbing more cooling waste heat and storing the cooling waste heat. Meanwhile, the duty ratio of the fan 9 judges whether to operate according to the collected temperature of the first temperature sensor 2, and if the temperature exceeds 105 ℃, the fan 9 operates at a low duty ratio. If the temperature drops to 100 ℃, the fan 9 stops running. The water pump 14 is operated until the temperature of the coolant drops to 80 c and then stops.
When the temperature of the cooling liquid is lower than 80 ℃ and the engine 1 is shut down, the control unit 13 controls the electronic thermostat 3 to close the small circulation flow path and simultaneously close the three-way electromagnetic valve 6, so that loops of the first phase change energy accumulator 4 and the second phase change energy accumulator 11 are closed, and heat in the first phase change energy accumulator 4 and the second phase change energy accumulator 11 is prevented from being taken away due to convection of the cooling liquid.
When the engine 1 is cold started, the control unit 13 receives an ignition signal of the engine 1 and a temperature signal acquired by the first temperature sensor 2, controls the electronic thermostat 3 to open the small circulation flow path and close the large circulation flow path, and simultaneously opens the first three-way electromagnetic valve 5 and the second three-way electromagnetic valve 6 to control the water pump 14 to work at a low speed, so that cooling liquid flows in the engine 1, the oil cooler 15 and the first phase-change energy accumulator 4, heat energy stored in the first phase-change energy accumulator 4 is released, the cooling liquid and the engine oil are heated, and the function of quickly warming up the engine is achieved. When low-temperature glass freezes or fogs in winter, the control unit 13 receives signals of defrosting, demisting or vehicle warming, and in the warming process, the flow control valve 7 on the branch of the warming core body can be opened at the same time, and the defrosting and demisting are accelerated by utilizing the heat additionally stored by the second phase-change energy accumulator 11; the carriage can be preheated by increasing the opening degree of the flow control valve 7 on the warm core branch.
The utility model discloses engine heat management system through arranging a phase change energy storage ware and No. two phase change energy storage ware on little circulating flow path and warm core body are propped up respectively, can not only retrieve the partial waste heat that engine coolant liquid distributed out under the normal operating condition of engine, can also retrieve the aftercooling waste heat under the engine is in flameout hot dipping, more does benefit to the cooling, effectively reduces the consumption of aftercooling fan, water pump simultaneously.
When the engine needs to be preheated during cold start under the low-temperature condition, the heat stored in the phase-change materials of the first phase-change energy accumulator and the second phase-change energy accumulator can be transferred to the engine, the engine oil and the cooling liquid are quickly heated, the engine reaches the normal working temperature in advance, and therefore the emission of harmful substances is reduced. The window glass is easy to freeze and fog in winter, the running safety is affected, heat stored in phase change materials of the first phase change energy accumulator and the second phase change energy accumulator can be utilized, an engine thermal management system is coordinated to defrost and demist in advance, and the vehicle warming in advance is assisted. Therefore, the recovery of the waste heat of the engine can be effectively controlled, and the functions of warming, defrosting, demisting, compartment preheating and the like can be performed by utilizing the waste heat.
The control unit controls each electronic component, so that intelligent control of engine cooling is realized, cooling waste heat of the engine is recovered more reasonably, and the running state of each component of the whole vehicle is maintained in a good state.
The engine heat management system is suitable for fuel vehicles and hybrid electric vehicles.
Additionally, an embodiment of the present invention provides an automobile, which includes the engine thermal management system of the above embodiment.
The automobile is a fuel oil automobile or an oil-electricity hybrid automobile.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. The engine heat management system is characterized by comprising an engine, a first temperature sensor, an electronic thermostat, a first phase change energy accumulator, a first three-way electromagnetic valve, a second three-way electromagnetic valve, a flow control valve, a second temperature sensor, a radiator, a second phase change energy accumulator, a warm core body, a control unit, a water pump and an oil cooler; a cooling water jacket is arranged in the engine, the first temperature sensor is used for collecting the temperature of cooling liquid at a water outlet of the cooling water jacket, and the second temperature sensor is used for collecting the temperature of the cooling liquid at the water outlet of the flow control valve;
the control unit is respectively connected with the first temperature sensor, the electronic thermostat, the first three-way electromagnetic valve, the second three-way electromagnetic valve, the flow control valve, the second temperature sensor, the radiator and the water pump through cables;
the water inlet of the first phase change energy accumulator is connected with the first water outlet of the electronic thermostat, the water outlet of the first phase change energy accumulator is connected with the first port of the second three-way electromagnetic valve, the second port of the second three-way electromagnetic valve is connected with the water inlet of the flow control valve, the water outlet of the flow control valve is connected with the water inlet of the second phase change energy accumulator, and the water outlet of the second phase change energy accumulator is connected with the water inlet of the warm core body; the second port of the second three-way electromagnetic valve is connected with the first port of the first three-way electromagnetic valve, and the second port of the first three-way electromagnetic valve is connected with the water inlet of the oil cooler; the second water outlet of the electronic thermostat is connected with the water inlet of the radiator; and the water outlet of the radiator, the water outlet of the warming core body, the third port of the first three-way electromagnetic valve and the water outlet of the oil cooler are respectively connected with the water inlet of the water pump.
2. The engine thermal management system according to claim 1, wherein the radiator comprises an external heat exchanger and a fan for radiating heat of the external heat exchanger, the second water outlet of the electronic thermostat is connected to the water inlet of the external heat exchanger, the water outlet of the external heat exchanger is connected to the water inlet of the water pump, and the control unit is connected to the fan through a cable.
3. The engine thermal management system of claim 2, wherein the fan is an electronic fan.
4. The engine thermal management system of claim 1, wherein the first temperature sensor is mounted on the engine.
5. The engine thermal management system of claim 1, wherein the oil cooler is mounted on the engine.
6. The engine thermal management system of claim 1, wherein the temperature sensor number two is connected between the flow control valve and the phase change accumulator number two.
7. The engine thermal management system of claim 1, wherein the water pump is an electric water pump.
8. The engine thermal management system of claim 1, wherein the phase change temperature of the phase change accumulator number one is 65 ℃ and the phase change temperature of the phase change accumulator number two is 75 ℃.
9. The engine thermal management system of claim 1, wherein an opening temperature of the second water outlet of the electronic thermostat is 100 ℃.
10. An automobile comprising an engine thermal management system according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922189785.2U CN211500785U (en) | 2019-12-09 | 2019-12-09 | Engine heat management system and automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922189785.2U CN211500785U (en) | 2019-12-09 | 2019-12-09 | Engine heat management system and automobile |
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| CN211500785U true CN211500785U (en) | 2020-09-15 |
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| CN201922189785.2U Active CN211500785U (en) | 2019-12-09 | 2019-12-09 | Engine heat management system and automobile |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112922718A (en) * | 2021-02-05 | 2021-06-08 | 大连职业技术学院 | Automobile engine temperature control system |
| CN113212101A (en) * | 2021-06-02 | 2021-08-06 | 合肥工业大学 | Phase-change capsule based extended-range electric vehicle integrated heat management system and method |
| CN115742679A (en) * | 2022-12-26 | 2023-03-07 | 中国重汽集团济南动力有限公司 | Heavy truck warm air system with phase change heat accumulator and control method |
-
2019
- 2019-12-09 CN CN201922189785.2U patent/CN211500785U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112922718A (en) * | 2021-02-05 | 2021-06-08 | 大连职业技术学院 | Automobile engine temperature control system |
| CN113212101A (en) * | 2021-06-02 | 2021-08-06 | 合肥工业大学 | Phase-change capsule based extended-range electric vehicle integrated heat management system and method |
| CN113212101B (en) * | 2021-06-02 | 2022-08-26 | 合肥工业大学 | Phase-change capsule based extended-range electric vehicle integrated heat management system and method |
| CN115742679A (en) * | 2022-12-26 | 2023-03-07 | 中国重汽集团济南动力有限公司 | Heavy truck warm air system with phase change heat accumulator and control method |
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