CN209056576U - Engine exhaust heats lithium battery system - Google Patents
Engine exhaust heats lithium battery system Download PDFInfo
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- CN209056576U CN209056576U CN201920003066.4U CN201920003066U CN209056576U CN 209056576 U CN209056576 U CN 209056576U CN 201920003066 U CN201920003066 U CN 201920003066U CN 209056576 U CN209056576 U CN 209056576U
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- lithium battery
- engine
- exhaust
- cooling circuit
- water
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
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Abstract
The utility model provides a kind of engine exhaust heating lithium battery system comprising sequentially connected engine cooling circuit, lithium battery heating/cooling circuit and lithium battery refrigerant cooling circuit；The engine cooling circuit includes engine, exhaust heat recovery device, water-water heat exchanger and heater cores, and the engine, the exhaust heat recovery device, the water-water heat exchanger and the heater cores are sequentially connected in series to form primary Ioops；Lithium battery heating/the cooling circuit is connected in parallel on the two sides of the water-water heat exchanger, and the lithium battery refrigerant cooling circuit is connected in parallel on the two sides of battery cooler in the lithium battery heating/cooling circuit.The utility model utilizes engine exhaust waste heat and heat of engine, heats lithium battery under cold driving cycle.Mixed motor-car is solved under cold condition, the technical issues of lithium battery can not discharge, charge, and it is lower compared to other high pressures PTC heating technique use cost.
Description
Technical field
The utility model relates to engine art, in particular to a kind of engine exhaust heats lithium battery system.
Background technique
In traditional combustion engine operation, about 1/3 heat can be wasted by tail gas, how efficiently use this portion
Point waste heat, operation when Lai Gaishan engine cold-start, it appears particularly important.
In the prior art, conventional exhaust waste heat can accelerate hair by a heat exchanger come heated engine coolant liquid
Motivation warming-up process, while greatly improving crew module's heating efficiency in winter.In plug-in/hybrid vehicle, using power
Battery and internal combustion engine series, parallel or mixed connection output power run engine in higher efficiency section, to reach section
It can emission reduction purpose.
However, the charge and discharge efficiency of lithium battery will be greatly reduced, even in extreme severe cold in winter under operating condition
Charge and discharge can be obstructed.Conventional heating lithium battery scheme mainly uses high pressure ptc heater, but under extremely cold driving cycles,
Ptc heater has to face without the available predicament of electricity.
In view of this, the system that those skilled in the art urgently recycle engine exhaust heating in development, to solve
The certainly above problem.
Utility model content
The technical problems to be solved in the utility model is to overcome charging and discharging lithium battery under winter condition in the prior art
The defects of efficiency substantially reduces provides a kind of engine exhaust heating lithium battery system.
The utility model is to solve above-mentioned technical problem by following technical proposals:
A kind of engine exhaust heating lithium battery system, it is characterized in that, the engine exhaust heats lithium battery system
Including sequentially connected engine cooling circuit, lithium battery heating/cooling circuit and lithium battery refrigerant cooling circuit；
The engine cooling circuit includes engine, exhaust heat recovery device, water-water heat exchanger and heater cores,
The engine, the exhaust heat recovery device, the water-water heat exchanger and the heater cores are sequentially connected in series to be formed one time
Road；
Lithium battery heating/the cooling circuit is connected in parallel on the two sides of the water-water heat exchanger, and the lithium battery refrigerant is cold
But circuit is connected in parallel on the two sides of battery cooler in the lithium battery heating/cooling circuit.
One embodiment according to the present utility model, the lithium battery heating/cooling circuit include that fluid reservoir, lithium battery are cold
But heap and the battery cooler, the cooling heap of the fluid reservoir, the lithium battery and the battery cooler are sequentially connected in series to be formed
Primary Ioops, the water-water heat exchanger are connected in parallel on the two sides of the fluid reservoir and the cooling heap of the lithium battery.
One embodiment according to the present utility model, the lithium battery refrigerant cooling circuit include condenser, compressor
With the battery cooler, the condenser, the compressor and the battery cooler are sequentially connected in series to form primary Ioops.
One embodiment according to the present utility model, the engine cooling circuit further include radiator, the radiator
It is connected in parallel on the two sides of the engine.
One embodiment according to the present utility model, the exhaust heat recovery device include heat exchanger, exhaust gas bypass
Pipe and exhaust gas by-pass valve, the exhaust gas by-pass valve are mounted in the exhaust gas bypass pipe；
When coolant temperature is lower than set temperature, the exhaust gas by-pass valve is in close state, and exhaust passes through the heat
Exchanger realizes heat recovery mode；
When coolant temperature is higher than set temperature, the exhaust gas by-pass valve is in the open state, and exhaust passes through described useless
Gas bypass pipe realizes bypass mode.
One embodiment according to the present utility model, the lithium battery heating/cooling circuit further includes a triple valve and electricity
Sub- water pump, the first end and second end of the triple valve are connected between the cooling heap of the lithium battery and the battery cooler,
The third end of the triple valve is connected to the water-water heat exchanger；
The electronic water pump is connected between the fluid reservoir and the cooling heap of the lithium battery.
One embodiment according to the present utility model further includes an expansion valve in the lithium battery refrigerant cooling circuit,
The expansion valve is connected between the battery cooler and the condenser.
One embodiment according to the present utility model, the expansion valve are heating power expansion valve or electric expansion valve.
One embodiment according to the present utility model, the engine cooling circuit further include a thermostat, the section temperature
The first end and second end of device is connected between the radiator and the engine, and the third end of the thermostat is connected to institute
State exhaust heat recovery device.
One embodiment according to the present utility model, the engine cooling circuit further include an electronic water pump, the electricity
Sub- water pump is connected between the thermostat and the exhaust heat recovery device.
The positive effect of the utility model is:
The utility model engine exhaust heats lithium battery system and utilizes engine exhaust waste heat and heat of engine, cold
Lithium battery is heated under cold driving cycle.Mixed motor-car is solved under cold condition, lithium battery can not discharge, the technology that charges is asked
Topic, and it is lower compared to other high pressures PTC heating technique use cost.It is rapidly heated and asks which solve lithium battery under severe winter operating condition
Topic, meets the power demand of vehicle.
Detailed description of the invention
The above and other feature of the utility model, property and advantage will pass through with reference to the accompanying drawings and examples
It describes and becomes apparent, identical appended drawing reference always shows identical feature in the accompanying drawings, in which:
Fig. 1 is the schematic diagram that the utility model engine exhaust heats lithium battery system.
Fig. 2 is the schematic diagram that the utility model engine exhaust heats exhaust heat recovery device in lithium battery system.
Fig. 3 is that exhaust heat recovery device is in recuperation of heat mould in the utility model engine exhaust heating lithium battery system
The schematic diagram of formula.
Fig. 4 is that exhaust heat recovery device is in bypass mode in the utility model engine exhaust heating lithium battery system
Schematic diagram.
[appended drawing reference]
Engine 10
Exhaust heat recovery device 11
Water-water heat exchanger 12
Heater cores 13
Battery cooler 20
Fluid reservoir 21
Lithium battery cools down heap 22
Condenser 30
Compressor 31
Radiator 14
Heat exchanger 111
Exhaust gas bypass pipe 112
Exhaust gas by-pass valve 113
Triple valve 23
Electronic water pump 24
Expansion valve 32
Thermostat 15
Electronic water pump 16
Feed pump 17
Specific embodiment
It is practical to this below in conjunction with attached drawing for the above objects, features, and advantages of the utility model can be clearer and more comprehensible
Novel specific embodiment elaborates.
The embodiments of the present invention are described with detailed reference to attached drawing now.Now with detailed reference to the excellent of the utility model
Embodiment is selected, its example is shown in the drawings.In the case of any possible, will be come in all the appended drawings using identical label
Indicate the same or similar part.
In addition, although term used in the utility model is selected from public term, this reality
Some terms mentioned in novel specification may be applicant by his or her judgement come selection, and detailed meanings exist
Illustrate in the relevant portion of description herein.
Furthermore, it is desirable that not only by used actual terms, and be also to the meaning contained by each term
To understand the utility model.
Fig. 1 is the schematic diagram that the utility model engine exhaust heats lithium battery system.Fig. 2 is the utility model engine
Exhaust gas heats the schematic diagram of exhaust heat recovery device in lithium battery system.Fig. 3 is that the utility model engine exhaust heats lithium
Exhaust heat recovery device is in the schematic diagram of heat recovery mode in battery system.Fig. 4 is that the utility model engine exhaust adds
Exhaust heat recovery device is in the schematic diagram of bypass mode in hot lithium battery system.
As shown in Figures 1 to 4, the utility model discloses a kind of engine exhausts to heat lithium battery system comprising according to
Engine cooling circuit, lithium battery heating/cooling circuit and the lithium battery refrigerant cooling circuit of secondary connection.Wherein, the hair
Motivation cooling circuit includes engine 10, exhaust heat recovery device 11, water-water heat exchanger 12 and heater cores 13, will be started
Machine 10, exhaust heat recovery device 11, water-water heat exchanger 12 and heater cores 13 are sequentially connected in series to form primary Ioops.The lithium electricity
Pond heating/cooling circuit is connected in parallel on the two sides of water-water heat exchanger 12, and the lithium battery refrigerant cooling circuit is connected in parallel on the lithium
The two sides of battery cooler 20 in battery heating/cooling circuit.
Preferably, the lithium battery heating/cooling circuit includes fluid reservoir 21, the cooling heap 22 of lithium battery and battery cooler
20, the cooling heap 22 of fluid reservoir 21, lithium battery and battery cooler 20 are sequentially connected in series to form primary Ioops, and water-water heat exchanger 12 is in parallel
In the two sides of fluid reservoir 21 and the cooling heap 22 of lithium battery.
Particularly, the lithium battery refrigerant cooling circuit includes condenser 30, compressor 31 and battery cooler 20, cold
Condenser 30, compressor 31 and battery cooler 20 are sequentially connected in series to form primary Ioops.
Further, the engine cooling circuit further includes radiator 14, and radiator 14 is connected in parallel on the two of engine 10
Side.
As shown in Figures 2 to 4, exhaust heat recovery device 11 includes heat exchanger 111, exhaust gas bypass pipe in the present embodiment
112 and exhaust gas by-pass valve 113, exhaust gas by-pass valve 113 be mounted in exhaust gas bypass pipe 112.When coolant temperature is lower than setting temperature
When spending, exhaust gas by-pass valve 113 is in close state, and exhaust realizes heat recovery mode by heat exchanger 111.When coolant liquid temperature
When degree is higher than set temperature, exhaust gas by-pass valve 113 is in the open state, and exhaust realizes bypass mould by exhaust gas bypass pipe 112
Formula.
Preferably, the lithium battery heating/cooling circuit further includes a triple valve 23 and electronic water pump 24, by triple valve 23
First end and second end be connected between the cooling heap 22 of lithium battery and battery cooler 20, the third end of triple valve 23 is connected to
Water-water heat exchanger 12.Electronic water pump 24 is connected between fluid reservoir 21 and the cooling heap 22 of lithium battery.
In addition, further including an expansion valve 32 in the lithium battery refrigerant cooling circuit, it is cold that expansion valve 32 is connected to battery
But between device 20 and condenser 30.Expansion valve 32 preferably uses heating power expansion valve or electric expansion valve.
The engine cooling circuit further includes a thermostat 15, the first end and second end of thermostat 15 is connected to scattered
Between hot device 14 and engine 10, the third end of thermostat 15 is connected to exhaust heat recovery device 11.The engine cool
Circuit further includes an electronic water pump 16, and electronic water pump 16 is connected between thermostat 15 and exhaust heat recovery device 11.
It is described according to above structure, after engine 10 is cold-started, coolant liquid enters partial circulating through thermostat 15, flows through electronics
Water pump 24, exhaust heat recovery device 11.As shown in figure 3, when coolant temperature is lower than set temperature, exhaust gas by-pass valve 113
It is in close state, exhaust passes through heat exchanger 111, i.e. heat recovery mode.Engine coolant after over-heat-exchanger 111,
The raising of exhaust gas side thermal temperature can be absorbed.Then water-water heat exchanger 12, the battery coolant liquid meeting in lithium battery heating circuit are flowed into
It is heated.10 coolant liquid of engine flows through heater cores 13, and the feed pump 17 in engine 10 flows back to engine cylinder body.
Further, the coolant liquid of the cooling heap 22 of lithium battery flows through the control of triple valve 23, when lithium battery needs to heat
When, battery coolant liquid flows into the heat that water-water heat exchanger 12 absorbs engine coolant side, reaches higher temperature.Using storage
Flow container 21, electronic water pump 16 enter back into the cooling heap 22 of lithium battery.When lithium battery needs cooling, battery coolant liquid flows into battery
Cooler 20 flows back to the cooling heap 22 of lithium battery using electronic water pump 24.
Further, it is controlled by expansion valve 32,20 inner refrigerant of battery cooler absorbs battery coolant liquid side heat and steams
Hair flows into condenser 30 into compressor 31, forms refrigerant cooling circuit.Wherein expansion valve 32 can be heating power expansion valve
Or any expansion valve such as electric expansion valve, effect be controlled by the 20 refrigerant outlet degree of superheat of battery cooler into
Enter the refrigerant flow of battery cooler 20.
Further, as shown in figure 4, exhaust gas by-pass valve 113 is in when engine coolant temperature is higher than set temperature
Open state, exhaust are not reabsorbed exhaust gas side heat, are prevented by by-pass stack 112, i.e. bypass mode, engine coolant
Engine coolant overheat is even boiled.
In the prior art, ptc heater is common heating battery technology, principle be after the power-up of PTC heating sheet from
Heat heating increases resistance value and enters transition area, and PTC heating sheet surface temperature will keep constant value.The cloth in battery coolant system
Ptc heater is set, using charging pile or on-vehicle battery electric energy, heats battery coolant liquid.However, under extremely cold driving cycles, PTC
Heater cannot rely on charging pile power supply, and on-vehicle battery electric discharge is limited, and ptc heater is available without electricity.
In comparison, the utility model engine exhaust heating lithium battery system is only needed using engine waste heat, no
It needs to increase use cost.Lithium battery coolant liquid is heated using water-water heat exchanger, is distributed convenient for battery thermal management and battery temperature
Uniformly.Water-water heat exchanger and exhaust heat recovery device are all matured product, the simple and reliable easy realization of system.
In conclusion the utility model engine exhaust heating lithium battery system utilizes engine exhaust waste heat and engine
Heat heats lithium battery under cold driving cycle.Mixed motor-car is solved under cold condition, lithium battery can not be discharged, be filled
The technical problem of electricity, and it is lower compared to other high pressures PTC heating technique use cost.Which solve lithium batteries under severe winter operating condition
Be rapidly heated problem, meets the power demand of vehicle.
Although the foregoing describe specific embodiment of the present utility model, it will be appreciated by those of skill in the art that
These are merely examples, and the protection scope of the utility model is defined by the appended claims.Those skilled in the art
Member can make numerous variations or be repaired to these embodiments under the premise of without departing substantially from the principles of the present invention and essence
Change, but these change and modification each fall within the protection scope of the utility model.
Claims (10)
1. a kind of engine exhaust heats lithium battery system, which is characterized in that the engine exhaust heats lithium battery system packet
Include sequentially connected engine cooling circuit, lithium battery heating/cooling circuit and lithium battery refrigerant cooling circuit；
The engine cooling circuit includes engine, exhaust heat recovery device, water-water heat exchanger and heater cores, described
Engine, the exhaust heat recovery device, the water-water heat exchanger and the heater cores are sequentially connected in series to form primary Ioops；
Lithium battery heating/the cooling circuit is connected in parallel on the two sides of the water-water heat exchanger, and the lithium battery refrigerant cools back
Road is connected in parallel on the two sides of battery cooler in the lithium battery heating/cooling circuit.
2. engine exhaust as described in claim 1 heats lithium battery system, which is characterized in that the lithium battery adds hot/cold
But circuit includes fluid reservoir, the cooling heap of lithium battery and the battery cooler, the fluid reservoir, lithium battery cooling heap and institute
It states battery cooler to be sequentially connected in series to form primary Ioops, the water-water heat exchanger is connected in parallel on the fluid reservoir and the lithium battery is cold
But the two sides of heap.
3. engine exhaust as claimed in claim 2 heats lithium battery system, which is characterized in that the lithium battery refrigerant is cold
But circuit includes condenser, compressor and the battery cooler, the condenser, the compressor and the battery cooler
It is sequentially connected in series to form primary Ioops.
4. engine exhaust as described in claim 1 heats lithium battery system, which is characterized in that the engine cooling circuit
It further include radiator, the radiator is connected in parallel on the two sides of the engine.
5. engine exhaust as described in claim 1 heats lithium battery system, which is characterized in that the waste-gas heat recycling dress
It sets including heat exchanger, exhaust gas bypass pipe and exhaust gas by-pass valve, the exhaust gas by-pass valve is mounted in the exhaust gas bypass pipe；
When coolant temperature is lower than set temperature, the exhaust gas by-pass valve is in close state, and exhaust passes through the heat exchange
Device realizes heat recovery mode；
When coolant temperature is higher than set temperature, the exhaust gas by-pass valve is in the open state, and exhaust passes through by the exhaust gas
Siphunculus realizes bypass mode.
6. engine exhaust as claimed in claim 2 heats lithium battery system, which is characterized in that the lithium battery adds hot/cold
But circuit further includes a triple valve and electronic water pump, and it is cooling that the first end and second end of the triple valve is connected to the lithium battery
Between heap and the battery cooler, the third end of the triple valve is connected to the water-water heat exchanger；
The electronic water pump is connected between the fluid reservoir and the cooling heap of the lithium battery.
7. engine exhaust as claimed in claim 3 heats lithium battery system, which is characterized in that the lithium battery refrigerant is cold
It but further include an expansion valve in circuit, the expansion valve is connected between the battery cooler and the condenser.
8. engine exhaust as claimed in claim 7 heats lithium battery system, which is characterized in that the expansion valve is that heating power is swollen
Swollen valve or electric expansion valve.
9. engine exhaust as claimed in claim 4 heats lithium battery system, which is characterized in that the engine cooling circuit
It further include a thermostat, the first end and second end of the thermostat is connected between the radiator and the engine, institute
The third end for stating thermostat is connected to the exhaust heat recovery device.
10. engine exhaust as claimed in claim 9 heats lithium battery system, which is characterized in that the engine cool is returned
Road further includes an electronic water pump, and the electronic water pump is connected between the thermostat and the exhaust heat recovery device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920003066.4U CN209056576U (en) | 2019-01-02 | 2019-01-02 | Engine exhaust heats lithium battery system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920003066.4U CN209056576U (en) | 2019-01-02 | 2019-01-02 | Engine exhaust heats lithium battery system |
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| Publication Number | Publication Date |
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| CN209056576U true CN209056576U (en) | 2019-07-02 |
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ID=67055580
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| CN201920003066.4U Active CN209056576U (en) | 2019-01-02 | 2019-01-02 | Engine exhaust heats lithium battery system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112031950A (en) * | 2020-09-09 | 2020-12-04 | 东风汽车有限公司 | Automobile waste heat recovery control method, electronic equipment and system |
| CN112124469A (en) * | 2020-09-10 | 2020-12-25 | 南京瑞摩速珂智能科技有限公司 | Motor waste heat utilization system for electric vehicle |
| CN112977850A (en) * | 2021-04-16 | 2021-06-18 | 北京航空航天大学 | Flapping wing aircraft thermal management system suitable for high and cold environment |
| CN114475147A (en) * | 2021-12-21 | 2022-05-13 | 浙江零跑科技股份有限公司 | Hybrid electric vehicle thermal management system and control method thereof |
| CN114489176A (en) * | 2021-12-31 | 2022-05-13 | 北京京仪自动化装备技术股份有限公司 | Coupling temperature control system and method |
-
2019
- 2019-01-02 CN CN201920003066.4U patent/CN209056576U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112031950A (en) * | 2020-09-09 | 2020-12-04 | 东风汽车有限公司 | Automobile waste heat recovery control method, electronic equipment and system |
| CN112031950B (en) * | 2020-09-09 | 2023-02-03 | 东风汽车有限公司 | Automobile waste heat recovery control method, electronic equipment and system |
| CN112124469A (en) * | 2020-09-10 | 2020-12-25 | 南京瑞摩速珂智能科技有限公司 | Motor waste heat utilization system for electric vehicle |
| CN112124469B (en) * | 2020-09-10 | 2021-10-22 | 南京瑞摩速珂智能科技有限公司 | Motor waste heat utilization system for electric vehicle |
| CN112977850A (en) * | 2021-04-16 | 2021-06-18 | 北京航空航天大学 | Flapping wing aircraft thermal management system suitable for high and cold environment |
| CN114475147A (en) * | 2021-12-21 | 2022-05-13 | 浙江零跑科技股份有限公司 | Hybrid electric vehicle thermal management system and control method thereof |
| CN114475147B (en) * | 2021-12-21 | 2024-01-12 | 浙江零跑科技股份有限公司 | Hybrid electric vehicle thermal management system and control method thereof |
| CN114489176A (en) * | 2021-12-31 | 2022-05-13 | 北京京仪自动化装备技术股份有限公司 | Coupling temperature control system and method |
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