CN105576324A - Battery temperature control system for vehicle - Google Patents
Battery temperature control system for vehicle Download PDFInfo
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- CN105576324A CN105576324A CN201610071719.3A CN201610071719A CN105576324A CN 105576324 A CN105576324 A CN 105576324A CN 201610071719 A CN201610071719 A CN 201610071719A CN 105576324 A CN105576324 A CN 105576324A
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- battery
- cycling element
- temperature control
- temperature
- battery temperature
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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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Abstract
The invention discloses a battery temperature control system for a vehicle. The battery temperature control system comprises: a battery pack, a semiconductor temperature adjusting unit, a first circulation unit and a second circulation unit, wherein the battery pack is placed on the first circulation unit, a first surface of the semiconductor temperature adjusting unit is leaned against the first circulation unit, and a second surface of the semiconductor temperature adjusting unit is leaned against the second circulation unit.
Description
Technical field
The present invention relates to automobile technical field, particularly relate to the temperature control system of the electrokinetic cell for motor vehicle.
Background technology
Electrokinetic cell is the main energy storage device of electric automobile, and battery temperature not only has a certain impact to its discharge power, charge acceptance, operability, but also greatly affects the life-span of battery.The operating temperature range be applicable to is the key factor that electrokinetic cell obtains optimum performance and increases the service life.
The normal operating efficiency of battery and the relation between charge efficiency and temperature are as shown in Figure 1.According to the research of the people such as Matthe in 2011, some batteries start to decline at the power of 40 ° of C, can not export during 60 ° of C.Only having 60% of former power when 0 ° of C, is be almost zero at-30 ° of C.The operating temperature range be applicable to is the key factor that battery obtains optimum performance and increases the service life.Electrokinetic cell can produce electric reaction heat and Joule heat when discharge and recharge, thus own temperature is improved, and prescribe a time limit when exceeding in its optimum working temperature, electrokinetic cell performance can be affected, and even may cause battery explosion time serious; On the contrary, prescribe a time limit under lower than optimum working temperature, the voltage and current of battery all can decline.In electric automobile running, the too low meeting of temperature causes starting, and the too high normal operation not only affecting vehicle of temperature, also can cause the serious accidents such as battery explosion time serious.Therefore, in electric automobile, the safety and reliability of power battery pack is extremely important, and power battery pack is the core component affecting the key indexs such as car load power performance, course continuation mileage, cost.
In order to overcome the serious situation of battery temperature influence, in prior art, providing multiple resolving ideas and scheme, comprising and directly take Independent air conditioning to battery pack refrigeration or heat, with circulation waterway cooling or heating etc.In these solutions, although the temperature of battery can be remained on one preferably in scope, often there is following shortcoming:
The first, the space required for battery temperature control unit is excessive, and the integrated difficulty of car load is strengthened.The overall dimensions of existing vehicle is certain, needs in a limited space to hold as a series of parts such as battery, drive system, drive system, braking system, control system.In order to ensure the course continuation mileage of vehicle, battery can occupy sizable space.Therefore, how to reduce the space required for battery temperature control unit, make it in the requirement meeting temperature-control range, the vehicle applying to various model is the difficult problem that a lot of prior art does not solve.
The second, the electric power spent by battery temperature control unit is huge, greatly have impact on the flying power of vehicle.If the temperature control system of electric automobile is in order to control the temperature of battery, and then consuming the large volume and electricity of battery, consequently still not reaching raising battery efficiency, strengthen the ideal effect of electric automobile performance.
Summary of the invention
A kind of compact conformation is the object of the present invention is to provide to take up room little, and the battery temperature control that efficiency is high.
In order to realize foregoing invention object, the present invention discloses a kind of battery temperature control for vehicle, it is characterized in that, comprise: a battery component, semiconductor thermostat unit, one first cycling element and the second cycling element, this battery component is positioned on this first cycling element, the first surface of this conductor temperature regulon is close to this first cycling element, and this second cycling element is close in the second face of this conductor temperature regulon.
Further, this conductor temperature regulon comprises two groups, and these two groups of conductor temperature regulons lay respectively at top and the below of this first cycling element.
Further, this battery temperature control also comprises a temperature switch, is connected with this temperature switch
A control unit and the power supply of powering for this conductor temperature regulon.
Further, this control unit controls this conductor temperature regulon, the first cycling element and the second cycling element work or stopping according to the first output signal of this temperature switch; This control unit controls this first cycling element according to the second output signal of this temperature switch.
Further, this first cycling element comprises a heating panel, and this heating panel comprises a water inlet pipe, at least one radiating wing and an outlet pipe, and one end of this radiating wing connects this water inlet pipe, and the other end connects this outlet pipe.
Further, this radiating wing is made up of some independently paths.
Further, the cross section of this path is a rectangle.
Further, one end of the water inlet pipe near this heating panel is close to by this conductor temperature regulon, and this battery component is positioned over one end of the outlet pipe near this heating panel; Or water inlet pipe and the outlet pipe of this heating panel are positioned at the same side.
Further, this water inlet pipe is parallel with this outlet pipe, and this radiating wing is vertical with this water inlet pipe and outlet pipe.
Further, this battery temperature control also comprises a heat exchanger, for distributing the heat of the second cycling element.
Compared with prior art, battery temperature control provided by the present invention has the following advantages:
The first, high-efficient liquid conductance hot plate (heating panel) size of this battery temperature control is little, thickness only has about 3m, and existing battery is directly placed in this battery temperature control and uses, do not need to do any improvement additionally to existing battery, therefore go for the supporting of various battery pack and application, and be applicable to various;
The second, whole system power consumptive province, according to the amount of capacity of battery pack, uses power to be only 1-2kW, can not consumption of power battery electric quantity in a large number.Due to the accurate control to ambient temperature, being beneficial to the performance of battery pack usefulness, can increasing to some extent because being employed herein this system rear vehicle distance travelled;
Three, this battery temperature control is independent of the system outside battery component, stays out of battery pack each unit internal control strategy;
Four, soon, temperature inertness is little for the heating of this battery temperature control and hypothermic response, and temperature controls precisely.
Accompanying drawing explanation
Can be further understood by following detailed Description Of The Invention and institute's accompanying drawings about the advantages and spirit of the present invention.
Fig. 1 is that ambient temperature affects schematic diagram to battery set charge/discharge usefulness;
Fig. 2 is the module diagram of battery temperature control provided by the invention;
Fig. 3 is the structural representation of battery temperature control provided by the invention;
Fig. 4 is the structural representation of the heating panel of battery temperature control provided by the invention;
Fig. 5 is the cutaway view of the heating panel of battery temperature control provided by the invention.
Embodiment
Specific embodiments of the invention are described in detail below in conjunction with accompanying drawing.
In order to solve the problems of the technologies described above, the open battery temperature control for vehicle of the present invention, is directly positioned on cold/thermal cycle unit by battery component, reduces the space requirement required for temperature control system as much as possible.On the other hand, utilize another road cycling element to carry out waste heat to conductor temperature regulon and take away/the process of additional heat, and then improve refrigerating/heating efficiency and the reaction time of conductor temperature regulon.In the following description, in order to clear displaying structure of the present invention and working method, to be described by many Directional words, but should by "front", "rear", "left", "right", " outward ", " interior ", " outwards ", " inwardly ", " on ", the Word Understanding such as D score for convenience of term, and not should be understood to word of limitation.
As shown in Figure 2, Fig. 2 is the module diagram of battery temperature control provided by the invention.This battery temperature control comprises by temperature-control units, i.e. battery component 10.The temperature sensor (not shown) of temperature switch 70 is used for monitoring cell group temperature, and sends start signal or shutdown signal to control unit 60 according to probe value.Control unit 60 controls to be connected with power supply 50, by controlling power supply 50 and the closure of conductor temperature regulon 30, as just connect or reversal connection, thus controls the cold and hot surface commutation of conductor temperature regulon 30.
Semiconductor refrigerating is also known as electronic cooling, or thermoelectric cooling, is the P-N junction utilizing extraordinary semi-conducting material to form, and forms thermocouple pair, produces Peltier effect, namely by mode that direct current freezes.The physical principle of " peltier effect " is: charge carrier moves formation electric current in the conductor, because charge carrier is in different energy levels in different materials, when it moves from high level to low-lying level, will discharge unnecessary heat.Otherwise, just need to absorb heat (namely showing as refrigeration) from the external world.So when conductor temperature regulon 30 is just connecing power supply 50, first surface produces heat, second is absorbing heat; When conductor temperature regulon 30 reversal connection power supply 50, the first surface originally producing heat becomes absorption heat, and the second face originally absorbing heat becomes generation heat.
Temperature switch 70 is preferably two groups of temp control switch elements, and wherein one group is high temperature shutoff, and another group is low-temperature switch.First group of temp control switch element detects battery pack temperature when being high temperature, and first group of temp control switch element sends a start signal, and conductor temperature regulon 30 starts to freeze to battery component 10.First group of temp control switch element detects battery pack temperature when not being high temperature, and conductor temperature regulon 30 stops refrigeration.Same reason, second group of temp control switch element detects battery pack temperature when being low temperature, and second group of temp control switch element sends a start signal, and conductor temperature regulon 30 starts to heat to battery component 10.When battery pack temperature reaches determined temperature, stop heating.When conductor temperature regulon 30 is started working, the first cycling element 20 and the second cycling element 40 work simultaneously.When temperature switch 70 detects the temperature difference of battery component 10 within the specific limits, during as 2 to 3 ° of C, temperature switch 70 sends temperature signal, and only the first cycling element 20 works, and the second cycling element 40 does not work.In another kind of better embodiment, can by the On/Off of external unit (as Vehicular battery management system or manual operation) control temperature switch 70, or the On/Off of the first cycling element 20.
First cycling element 20 is close to the first surface of battery component 10 and conductor temperature regulon 30 simultaneously." being close to " described herein not only refers to that battery component 10 directly contacts with the first cycling element 20, also comprises between battery component 10 and the first cycling element 20 and is provided with other high-termal conductivity objects, as sheet metal, heat conductive silica gel etc.First cycling element 20 is for the heat conduction that produced by conductor temperature regulon 30 to battery component 10, or the heat conduction produced by battery component 10 is to conductor temperature regulon 30.
Second cycling element 40 is close to the second face of conductor temperature regulon 30.When the first surface refrigeration of conductor temperature regulon 30, the second cycling element 40 takes heat exchanger to dissipate for making the second face of conductor temperature regulon 30 heat produced heat; When the first surface of conductor temperature regulon 30 heats, the second cycling element 40 absorbs from heat exchanger for making second of conductor temperature regulon 30 heat absorbed that freezes.
First cycling element 20 and the second cycling element 40 include heating panel (or claiming heat-conducting plate), pump and liquid medium.Preferentially, this liquid medium can be water, silicone oil, cooling fluid etc.In a kind of preferred embodiment, the first cycling element 20 and the second cycling element 40 are made up of heat pipe.In a kind of preferred embodiment, the first cycling element 20 and the second cycling element 40 are all stored by same expansion tank.In another kind of preferred embodiment, the second cycling element 40 arranges a heat exchanger, can not expend on the basis of electric quantity of power supply like this, improve temperature control efficiency further.
Fig. 3 is the structural representation of battery temperature control provided by the invention.Wherein a illustrates the position relationship of the first cycling element 20 and battery component, and b illustrates the position relationship of the first cycling element 20 and conductor temperature regulon 30 and the second cycling element.As shown in Figure 3, the heating panel horizontal positioned of the first cycling element 20, battery component 10 is positioned at the top of the heating panel of the first cycling element 20.Battery component 10 and heating panel are close to, and the both sides of heating panel respectively arrange one group of conductor temperature regulon 30.Wherein the wherein one side of two groups of conductor temperature regulons 30 is all close to this heating panel.The another side of two groups of conductor temperature regulons 30 is close to the second cycling element 40.When battery pack temperature is too high, the face being close to the conductor temperature regulon 30 of the first cycling element 20 starts refrigeration, and liquid medium flows to one end of battery component 10 from one end of conductor temperature regulon 30.Meanwhile, the heat that the another side of conductor temperature regulon 30 produces is taken away by the second cycling element 40, and the cycling element that therefore two-way is relatively independent ensure that and controls efficiently to carry out to the temperature of battery component 10.In order to reduce the usage space of this battery temperature control as much as possible, heating panel is made up of very thin sheet metal, and the thickness of its vertical direction can be as thin as 3 millimeters.
Fig. 4 is the structural representation of the heating panel of battery temperature control provided by the invention.As shown in Figure 4, heating panel 20 comprises water inlet pipe 21, some radiating wings 22 and outlet pipe 23.Some conductor temperature regulon 30a-30h are arranged near water inlet pipe 21 place.Liquid medium (water or other contain the liquid of anti-icing fluid) from being heated after water inlet pipe 21 enters heating panel 20 or lowering the temperature, then flows through power supply module (empty wire frame positions), heats up or flow out from outlet pipe 23 after lowering the temperature again power supply module.
In another kind of preferred embodiment, water inlet pipe and outlet pipe are positioned at the same side.Such as liquid medium flows into from water inlet pipe 21, flows out after 30h, 30g, 30f, 30e through 30d, 30c, 30b, 30a from outlet pipe 23 again.
Fig. 5 is the cutaway view of the heating panel of battery temperature control provided by the invention.As shown in Figure 5, this heating panel is made up of metallic aluminium or aluminium alloy.Every root radiating wing 22 of heating panel includes some independent path 24a to 24h, and multiple path is parallel to each other.Even if certain path is blocked by the impurity in liquid medium, do not affect the normal work of other paths yet.Because battery component in the present invention 10 is directly placed on heating panel, therefore the particular design of this radiating wing 22 effectively can also strengthen the support force of its vertical direction.In order to strengthen radiating effect further, the rectangular in cross-section of path, and at least one face arranges some ripple glazes, increase the contact area of liquid medium and radiating wing 22.Ringwise, as shown in the b figure in Fig. 3, internal structure, with the radiating wing of the first cycling element, repeats no more the shape of the radiating wing of the second cycling element 40.
Compared with prior art, battery temperature control provided by the present invention has the following advantages:
The first, the high-efficient liquid conductance hot plate size of this battery temperature control is little, thickness only has 3mm, and existing battery is directly placed in this battery temperature control and uses, do not need to do any improvement additionally to existing battery, therefore go for the supporting of various battery pack and application, and be applicable to various;
The second, whole system power consumptive province, according to the amount of capacity of battery pack, uses power to be only 1-2kW, can not consumption of power battery electric quantity in a large number.Due to the accurate control to ambient temperature, being beneficial to the performance of battery pack usefulness, can increasing to some extent because being employed herein this system rear vehicle distance travelled;
Three, this battery temperature control is independent of the system outside battery component, stays out of battery group each unit internal control strategy;
Four, soon, temperature inertness is little for the heating of this battery temperature control and hypothermic response, and temperature controls precisely.
If no special instructions, occur in above-mentioned word be similar to " first ", the qualifier of " second " not refers to restriction to time sequencing, quantity or importance, and be only used to the technical characteristic of in the technical program to distinguish mutually with another technical characteristic.Similarly, the qualifier being similar to " " occurred herein not refers to the restriction to quantity, but describes the technical characteristic do not occurred in the preceding article.Similarly, occur before number herein be similar to " approximately ", the modifier of " approx " comprises this number usually, and its concrete implication should be understood in conjunction with context meaning.Not only similarly, only there is the noun that specific quantity measure word is modified, otherwise should regard as in this article and comprise singulative but also comprise plural form, in this technical scheme, namely can comprise odd number this technical characteristic, also can comprise this technical characteristic a plurality of.
Just preferred embodiment of the present invention described in this specification, above embodiment is only in order to illustrate technical scheme of the present invention but not limitation of the present invention.All those skilled in the art, all should be within the scope of the present invention under this invention's idea by the available technical scheme of logical analysis, reasoning, or a limited experiment.
Claims (10)
1. the battery temperature control for vehicle, it is characterized in that, comprise: a battery component, semiconductor thermostat unit, one first cycling element and the second cycling element, described battery component is positioned on described first cycling element, the first surface of described conductor temperature regulon is close to described first cycling element, and described second cycling element is close in the second face of described conductor temperature regulon.
2. battery temperature control as claimed in claim 1, it is characterized in that, described conductor temperature regulon comprises two groups, and described two groups of conductor temperature regulons lay respectively at top and the below of described first cycling element.
3. battery temperature control as claimed in claim 1, it is characterized in that, described battery temperature control also comprises a temperature switch, the control unit be connected with described temperature switch and a power supply of powering for described conductor temperature regulon.
4. battery temperature control as claimed in claim 3, is characterized in that, described control unit controls described conductor temperature regulon, the first cycling element and the second cycling element work or stopping according to the first output signal of described temperature switch; Described control unit controls described first cycling element according to the second output signal of described temperature switch.
5. battery temperature control as claimed in claim 1, it is characterized in that, described first cycling element comprises a heating panel, and described heating panel comprises a water inlet pipe, at least one radiating wing and an outlet pipe, one end of described radiating wing connects described water inlet pipe, and the other end connects described outlet pipe.
6. battery temperature control as claimed in claim 5, it is characterized in that, described radiating wing is made up of some independently paths.
7. battery temperature control as claimed in claim 6, it is characterized in that, the cross section of described path is a rectangle.
8. battery temperature control as claimed in claim 5, is characterized in that, one end of the water inlet pipe near described heating panel is close to by described conductor temperature regulon, and described battery component is positioned over one end of the outlet pipe near described heating panel; Or water inlet pipe and the outlet pipe of described heating panel are positioned at the same side.
9. battery temperature control as claimed in claim 5, it is characterized in that, described water inlet pipe is parallel with described outlet pipe, and described radiating wing is vertical with described water inlet pipe and outlet pipe.
10. battery temperature control as claimed in claim 1, it is characterized in that, described battery temperature control also comprises a heat exchanger, for distributing the heat of the second cycling element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610071719.3A CN105576324A (en) | 2016-02-02 | 2016-02-02 | Battery temperature control system for vehicle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610071719.3A CN105576324A (en) | 2016-02-02 | 2016-02-02 | Battery temperature control system for vehicle |
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| CN105576324A true CN105576324A (en) | 2016-05-11 |
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| CN201610071719.3A Pending CN105576324A (en) | 2016-02-02 | 2016-02-02 | Battery temperature control system for vehicle |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108461835A (en) * | 2018-02-13 | 2018-08-28 | 天津大学 | A kind of urgent cooling system of batteries of electric automobile based on Peltier effect |
| CN110015196A (en) * | 2017-09-30 | 2019-07-16 | 比亚迪股份有限公司 | Electric car, battery thermal management power supply system and its control method |
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| CN101652896A (en) * | 2007-04-04 | 2010-02-17 | Sk能源株式会社 | Battery temperature controller for electric vehicle using thermoelectric semiconductor |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110015196A (en) * | 2017-09-30 | 2019-07-16 | 比亚迪股份有限公司 | Electric car, battery thermal management power supply system and its control method |
| CN110015196B (en) * | 2017-09-30 | 2021-02-23 | 比亚迪股份有限公司 | Electric automobile, battery thermal management power supply system and control method thereof |
| CN108461835A (en) * | 2018-02-13 | 2018-08-28 | 天津大学 | A kind of urgent cooling system of batteries of electric automobile based on Peltier effect |
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