CN102522609A - Lithium-ion battery heat insulation device and control method thereof - Google Patents
Lithium-ion battery heat insulation device and control method thereof Download PDFInfo
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- CN102522609A CN102522609A CN2012100084811A CN201210008481A CN102522609A CN 102522609 A CN102522609 A CN 102522609A CN 2012100084811 A CN2012100084811 A CN 2012100084811A CN 201210008481 A CN201210008481 A CN 201210008481A CN 102522609 A CN102522609 A CN 102522609A
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Abstract
The invention discloses a lithium-ion battery heat insulation device and a control method thereof. The heat insulation device comprises an insulation box for containing a lithium-ion battery, and a temperature control circuit of which the power is supplied by the lithium-ion battery and which is used for controlling the ambient temperature around the lithium-ion battery; and the temperature control circuit is arranged in the insulation box. The temperature control circuit comprises a temperature detection module, an automatic temperature control switch module and a temperature controlling device; the temperature detection module is connected with the automatic temperature control switch module; and the automatic temperature control switch module is serially connected with the temperature control device. The invention solves the problem that an existing lithium-ion battery is seriously restricted by the ambient temperature when being used, so that an ordinary lithium-ion battery can be used normally not only at room temperature but also in cold environment and at high temperature, and the invention has the advantages of simple structure, easiness in manufacturing, convenience in use and good adaptability.
Description
Technical field
The present invention relates to a kind of attemperator, more specifically, relate to a kind of lithium battery attemperator and control the control method that lithium battery is operated in the predetermined work temperature range.
Background technology
Lithium battery is the accumulation power supply of a new generation; By lithium metal or lithium alloy is negative material; Use non-aqueous electrolytic solution; Be widely used on the current battery powered product facility of various needs, particularly in fields such as hand-hold electronic equipments, electric automobiles, lithium battery has the power supply of practical value especially most.
In all environmental factors, temperature has the greatest impact to the charge-discharge performance of lithium battery, and the electrochemical reaction that on the electrode/electrolyte interface, takes place is relevant with ambient temperature, and the electrode/electrolyte interface is regarded as the heart of battery.If temperature descends, the reaction rate of electrode also descends.Suppose that cell voltage keeps constant, then discharging current reduces, and the power output of battery also can reduce.If temperature rises then be opposite, promptly the battery power output increases.Temperature also influences the transfer rate of electrolyte, and temperature rises, and transmits and accelerates, and temperature descends, and then transmits and slows down, and the battery charging and discharging performance also can be affected.But temperature is too high, as surpassing 45 ℃, then can destroy the chemical balance in the battery, causes side reaction.Have significant reduction such as the discharging efficiency of NI-G, Ni-MH battery when low temperature (as being lower than-15 ℃), and in the time of-20 ℃, alkali lye reaches solidifying point, battery charge speed also reduces greatly.Charging can increase inner pressure of battery and safety valve is opened when 0 ℃ of low temperature.For effective charging; Ambient temperature range should be controlled between 5～30 ℃, and general charge efficiency can raise with the rising of temperature, but when temperature is elevated to the high temperature more than 45 ℃; The performance of rechargeable battery material can be degenerated, and battery cycle life also will shorten greatly.For example, under low-temperature condition (such as-40 ℃), lithium ion battery can only be emitted 10%～30% electric weight.
Occasion for many users place; All possibly run into relatively condition of severe of temperature; For example sun direct projections such as the high latitude area in winter, torrid areas, desert; More particularly be mainly used in electronic equipment, the transit equipment of open-air setting, field work or even execution special duty, all hope to guarantee to comprise of the requirement of the equipment of lithium battery temperature.
Performance can be had a greatly reduced quality when lithium battery used down at low-temperature condition (below 10 ℃); Even can't use (environment that temperature is extremely low) at all; Present solution is the material of change lithium battery interior; Material with special is come manufacture batteries, is referred to as " low temperature battery ", makes it in low temperature environment, to use.
When using in extremely cold environment with the lithium battery of low temperature material manufacturing, its performance is still had a strong impact on, and the environment for use scope is also very limited.This " low temperature battery " not only requires high to the material of lithium battery; And high to the cell making process requirement, expensive the more important thing is that its scope of application is very little; Big limitations the scope of application of lithium battery, still form the situation that common lithium battery can't use at low temperatures at last.
In addition, increasing in the world area begins to occur more extreme than before temperature at present, and for example many pieces of reports are introduced 40 degree (even 50 degree) all appear being higher than in a plurality of areas of China in summer high temperature.Under hot conditions, the performance and the useful life of lithium battery are all seriously influenced.
At present, the state that forms on the market is: the lithium battery that common material is made, can only use at the environment of corresponding temperature range, and the lithium battery with special material is made also can only use at the environment of corresponding temperature range.
Summary of the invention
One object of the present invention provides a kind of lithium battery attemperator, to solve the problem that existing lithium battery seriously receives environment for use temperature limitation.
Another object of the present invention provides a kind of lithium battery attemperator, is the optimum working temperature of keeping lithium battery, reduces ambient temperature to the lithium battery Effect on Performance.
Another object of the present invention provides a kind of lithium battery attemperator, prolongs the useful life of lithium battery under inclement condition area and environment.
Another object of the present invention provides a kind of method that makes that lithium battery can keep suitable working temperature, keeps the optimum working temperature of lithium battery, reduces ambient temperature to the lithium battery Effect on Performance.
Another object of the present invention provides a kind of method that makes that lithium battery can keep suitable working temperature, prolongs the useful life of lithium battery under inclement condition area and environment simultaneously.
Another object of the present invention provides a kind of method that makes that lithium battery can keep suitable working temperature, to solve the problem that existing lithium battery seriously receives environment for use temperature limitation.
The objective of the invention is to realize through following technical scheme:
A kind of lithium battery attemperator comprises the insulation booth that is used to hold lithium battery and by said lithium battery power supply and be used for controlling automatically the temperature-control circuit of said lithium battery ambient temperature, said temperature-control circuit is arranged in the said insulation booth.
Preferably, said insulation booth is a plastic box.
Preferably, said temperature-control circuit comprises temperature detecting module, temperature control automatic switch module and register, and said temperature detecting module is connected with said temperature control automatic switch module, and said temperature control automatic switch module is connected with said register.
Preferably, said register is a carbon fiber heating cloth.
Preferably, said temperature-control circuit also comprises manual master switch that is connected in the circuit and the indicator light that is used to indicate circuit working state.
Preferably, also be provided with heat insulation box in the said insulation booth, said carbon fiber heating cloth is arranged on the inner surface of said heat insulation box box body.
Preferably, the protective circuit plate of said temperature-control circuit and lithium battery integrates, and said protective circuit plate places on the electric core of lithium battery.
Preferably, said insulation booth lid is provided with the through hole that supplies manual master switch, indicator light and power supply output line to pass.
Preferably, said indicator light is a LED light.
The present invention also provides a kind of lithium battery is remained on the control method of predetermined work temperature range, and this method is used any one above-mentioned lithium battery attemperator, it is characterized in that:
Set two interval end values of predetermined normal temperature;
Be in predetermined normal temperature when interval when detecting temperature, register is not worked;
When detecting temperature and be lower than the interval low temperature end value of predetermined normal temperature, start register, make that the ambient temperature around the lithium battery raises;
When detecting temperature and be higher than the interval high temperature end value of predetermined normal temperature, start register, make that the ambient temperature around the lithium battery reduces.
Further, interval temperature end and the low-temperature end of predetermined temperature can be provided with two or more end values respectively, and when the working temperature of detected lithium battery was in different end value zones, the control register was with different power work.
Further, interval temperature end and the low-temperature end of predetermined temperature is provided with two end values respectively,
When working temperature was lower than the first cryogenic temperature end value, register was worked with the first intensification power;
When working temperature was lower than the second cryogenic temperature end value, register was worked with the second intensification power;
Wherein, the first cryogenic temperature end value is lower than the second cryogenic temperature end value, and the first intensification power work is worked greater than the second intensification power;
When working temperature was lower than the first high-temperature temperature end value, register was with the first cooling power work;
When working temperature was lower than the second high-temperature temperature end value, register was with the second cooling power work;
Wherein, the first high-temperature temperature end value is lower than the second high-temperature temperature end value, and the first cooling power work is greater than the second cooling power work.
Operation principle of the present invention is: lithium battery or lithium battery group are placed in the box body; The temperature-control circuit that also can be controlled said lithium battery ambient temperature by said lithium battery power supply automatically is set in the box body; Thereby lithium battery or lithium battery group are operated under the adapt circumstance temperature, avoid lithium battery or lithium battery group to cross low can not work or serviceability is had a greatly reduced quality because of ambient temperature.
Beneficial effect of the present invention is: simple in structure, be easy to make, easy to use, adapt to; Can solve the problem that existing lithium battery seriously receives environment for use temperature limitation; Keep the optimum working temperature of lithium battery, reduce ambient temperature the lithium battery Effect on Performance; Can prolong simultaneously the useful life of lithium battery under inclement condition area and environment.
Description of drawings
According to accompanying drawing and embodiment the present invention is done further explain below.
Fig. 1 is the external structure sketch map behind the placement lithium battery in the first embodiment of the invention.
Fig. 2 is the internal structure sketch map behind the placement lithium battery in the first embodiment of the invention.
Fig. 3 is the structural principle sketch map of the electrothermal refrigeration sheet in the register in the first embodiment of the invention.
Among the figure:
1, insulation crust; 2, heat insulation box; 3, register; 4, electric core; 5, protective circuit plate; 6, indicator light; 7, power supply output line.
Embodiment
Further specify technical scheme of the present invention below in conjunction with accompanying drawing and through embodiment.
First embodiment
Fig. 1～2 show the first embodiment of the present invention; Lithium battery attemperator in this embodiment; Comprise the insulation crust 1 that is used to place lithium battery; The incubation chamber 2 that in insulation crust 1, is provided with, be placed on lithium battery and register 3 in the incubation chamber 2, in this insulation crust 1, also be provided with temperature-control circuit, this temperature-control circuit is by said lithium battery power supply and be used for controlling automatically said lithium battery ambient temperature.
Said insulation crust 1 is the box body that plays the protection supporting role that insulating material constitutes, and is preferred, and this cell material is to have good effect of heat insulation, have material higher-strength, that have the good insulation performance, for example, and plastics, plastic cement, resin etc.Said box body/insulation booth 1 inside also is provided with heat insulation box 2 again, and said temperature-adjusting device 3 is arranged on the inner surface of said heat insulation box 2 box bodys.
Said temperature-control circuit comprises temperature detecting module Rt, temperature control automatic switch module Kt and register R, and said temperature detecting module Rt is connected with said temperature control automatic switch module Kt, and said temperature control automatic switch module Kt connects with said register R.
Said temperature-control circuit also comprises manual master switch SW that is connected in the circuit and the indicator light 6 that is used to indicate circuit working state.Said indicator light can be LED light, perhaps also can be the indicator light of other kinds.
The protective circuit plate 5 of said temperature-control circuit and lithium battery integrates, and said protective circuit plate 5 places on the electric core 4 of lithium battery.
Said insulation booth 1 lid is provided with the through hole that supplies manual master switch SW, indicator light 6 and power supply output line 7 to pass.
Said register 3 can be thermoelectric module; This focus cooling piece also becomes semiconductor chilling plate; Its work running is to utilize direct current; It not only can freeze but also can heat, and decides through the polarity that changes direct current and on same cooling piece, realizes refrigeration or heating, and the generation of this effect is exactly to pass through thermoelectric cooling.The operation principle of focus cooling piece/semiconductor chilling plate is: when a N type semiconductor material and P type semiconductor material be coupled to galvanic couple to the time; After in this circuit, connecting direct current; The just energy-producing transfer of ability; Electric current absorbs heat by the joint that N type element flows to P type element, becomes cold junction and flows to the joint release heat of N type element by P type element, becomes the hot junction.The heat absorption and the size of heat release are that the element logarithm through the size of electric current and semi-conducting material N, P decides.Fig. 3 is exactly a cooling piece, and it is made up of two groups of potsherds, and the semi-conducting material (bismuth telluride) of N type and P type is arranged between wherein, and this semiconductor element is to link with the series connection form to form on circuit.
Second embodiment
A kind of lithium battery heat preserving method is provided in the second embodiment of the invention; This method is used the lithium battery attemperator among first embodiment; When needs use lithium battery or lithium battery group under the extreme temperature environment; At first open the manual master switch SW on insulation crust 1 lid, temperature-control circuit is started working, this moment, LED light was shinny; Set the temperature limit point of temperature control automatic switch module Kt then, this temperature limit point can be set to one or more, for example is made as 5 ℃ and 30 ℃, wherein is normal working temperature between 5 ℃ to 30 ℃.
When the temperature that detects lithium battery as temperature detecting module Rt is higher than 30 ℃; Thermoelectric module in the register 3 in the temperature control automatic switch module Kt A.T.C control circuit is started working; To extraneous quantity of heat given up, i.e. heat radiation, thus the lithium battery ambient temperature is reduced;
When the temperature that detects lithium battery at temperature detecting module Rt is lower than 5 ℃; Temperature control automatic switch module Kt connects temperature-control circuit automatically; Temperature control automatic switch module Kt controls temperature-control circuit; Thermoelectric module heating power in the register 3 in the temperature-control circuit absorbs extraneous heat at this moment, thereby the lithium battery ambient temperature is raise;
Be in 5 ℃ between 30 ℃ the time when temperature detecting module Rt detects the lithium battery ambient temperature, the electrothermal refrigeration sheet in the temperature control automatic switch module Kt break-off signal control circuit, this moment register 3 is in resting state.So, even the lithium battery ambient temperature remains between 5 ℃ to 30 ℃.
When the user does not need the serviceability temperature regulatory function, close the manual master switch SW on insulation crust 1 lid, temperature-control circuit is quit work, this moment, LED light was extinguished.
The 3rd embodiment
A kind of lithium battery heat preserving method is provided in the second embodiment of the invention; This method is used the lithium battery attemperator among first embodiment; This method temperature limit point can be set to more a plurality of; For example be made as 35 ℃ of 0 ℃ of 5 ℃ of the first low temperature threshold values and the second low temperature threshold value, 30 ℃ of first high temperature threshold value and second high temperature threshold value, also be provided with comparator and control chip in the temperature-control circuit.Manual master switch SW when opening on insulation booth 1 lid starts working temperature-control circuit, and this moment, LED light was shinny; When the temperature that detects lithium battery as temperature detecting module Rt is higher than 30 ℃ of first high temperature threshold value; Thermoelectric module in the register 3 in the temperature control automatic switch module Kt A.T.C control circuit is started working; To extraneous quantity of heat given up, i.e. heat radiation, its power is first heat radiation power;
When the temperature that detects lithium battery as temperature detecting module Rt is higher than 35 ℃ of second high temperature threshold value; Thermoelectric module in the register 3 in the temperature control automatic switch module Kt A.T.C control circuit begins with bigger current work; To extraneous quantity of heat given up; I.e. heat radiation, its power is second heat radiation power, this second heat radiation power is greater than first heat radiation power.
When the temperature that detects lithium battery at temperature detecting module Rt is lower than 5 ℃ of the first low temperature threshold values; Temperature control automatic switch module Kt connects temperature-control circuit automatically, and temperature control automatic switch module Kt controls temperature-control circuit, at this moment the thermoelectric module heating power in the register 3 in the temperature-control circuit; Absorb extraneous heat; Thereby the lithium battery ambient temperature is raise, i.e. heat absorption, its power is the first intensification power;
When the temperature that detects lithium battery at temperature detecting module Rt is lower than 0 ℃ of the second low temperature threshold value; Temperature control automatic switch module Kt controls temperature-control circuit, and the thermoelectric module heating power in the register 3 in the temperature-control circuit absorbs extraneous heat at this moment; Thereby the lithium battery ambient temperature is raise; I.e. heat absorption, its power are the second heat absorption power, and this second heat absorption power is greater than the first intensification power.
Be in 5 ℃ between 30 ℃ the time when temperature detecting module Rt detects the lithium battery ambient temperature, the electrothermal refrigeration sheet in the temperature control automatic switch module Kt break-off signal control circuit, this moment register 3 is in resting state.So, even the lithium battery ambient temperature remains between 5 ℃ to 30 ℃.When the user does not need the serviceability temperature regulatory function, close the manual master switch SW on insulation crust 1 lid, temperature-control circuit is quit work, this moment, LED light was extinguished.
The 4th embodiment
In the 4th embodiment; The lithium battery attemperator; Comprise the insulation crust 1 that is used to place lithium battery; The incubation chamber 2 that in insulation crust 1, is provided with, be placed on lithium battery and register 3 in the incubation chamber 2, in this insulation crust 1, also be provided with temperature-control circuit, this temperature-control circuit is by said lithium battery power supply and be used for controlling automatically said lithium battery ambient temperature.
Said insulation crust 1 is the box body that plays the protection supporting role that insulating material constitutes, and is preferred, and this cell material is to have good effect of heat insulation, have material higher-strength, that have the good insulation performance, for example, and plastics, plastic cement, resin etc.Said box body/insulation booth 1 inside also is provided with heat insulation box 2 again, and said temperature-adjusting device 3 is arranged on the inner surface of said heat insulation box 2 box bodys.
Said temperature-control circuit comprises temperature detecting module Rt, temperature control automatic switch module Kt and register R, and said temperature detecting module Rt is connected with said temperature control automatic switch module Kt, and said temperature control automatic switch module Kt connects with said register R.
Said temperature-control circuit also comprises manual master switch SW that is connected in the circuit and the indicator light 6 that is used to indicate circuit working state.Said indicator light can be LED light, perhaps also can be the indicator light of other kinds.
The protective circuit plate 5 of said temperature-control circuit and lithium battery integrates, and said protective circuit plate 5 places on the electric core 4 of lithium battery.
Said insulation booth 1 lid is provided with the through hole that supplies manual master switch SW, indicator light 6 and power supply output line 7 to pass.
Said register 3 is the phase-changing energy storage material of a plurality of individual packages.The phase transition temperature of preferred said phase-changing energy storage material is near the optimum working temperature of lithium battery; Phase-changing energy storage material is in its thing phase change process; Can from environment, absorb heat (cold) amount or in environment, emit heat; Thereby reach energy storage and release and regulate energy requirement and the purpose of supply, can be in paraffin class, higher fatty acids class, polyolefin, the alcohols a kind of, preferably use paraffin; The solid-liquid phase phase transition temperature of paraffin changes with the length of the carbochain of the paraffin molecule of forming paraffin, in 0 ℃～80 ℃ scopes.Also can in paraffin, add the thermal conductivity that metal dust or carbon fiber increase material.The phase-changing energy storage material of said a plurality of individual packages be separately positioned on lithium battery around, wherein a part is set to the precooling attitude preparing to absorb heat, when energising, absorbs heat; A part is set to the preheating state preparing to generate heat, the evolution of heat when energising.
The 5th embodiment
A kind of lithium battery heat preserving method is provided in the fifth embodiment of the invention; This method is used the lithium battery attemperator among the 4th embodiment; When needs use lithium battery or lithium battery group under the extreme temperature environment; At first open the manual master switch SW on insulation booth 1 lid, temperature-control circuit is started working, this moment, LED light was shinny; Set the temperature limit point of temperature control automatic switch module Kt then, this temperature limit point can be set to one or more, for example is made as 5 ℃ and 30 ℃, wherein is normal working temperature between 5 ℃ to 30 ℃.
When the temperature that detects lithium battery as temperature detecting module Rt is higher than 30 ℃; The phase-changing energy storage material energising of the precooling attitude in the register 3 in the temperature control automatic switch module Kt A.T.C control circuit is started working; Absorb the heat of lithium battery, thereby the lithium battery ambient temperature is reduced;
When the temperature that detects lithium battery at temperature detecting module Rt is lower than 5 ℃; Temperature control automatic switch module Kt connects temperature-control circuit automatically; Temperature control automatic switch module Kt controls temperature-control circuit; The phase-changing energy storage material energising of the preheating state in the register 3 in the temperature-control circuit is at this moment started working, and to the lithium battery evolution of heat, thereby the lithium battery ambient temperature is raise;
Be in 5 ℃ between 30 ℃ the time when temperature detecting module Rt detects the lithium battery ambient temperature, the electrothermal refrigeration sheet in the temperature control automatic switch module Kt break-off signal control circuit, this moment register 3 is in resting state.So, even the lithium battery ambient temperature remains between 5 ℃ to 30 ℃.
When the user does not need the serviceability temperature regulatory function, close the manual master switch SW on insulation crust 1 lid, temperature-control circuit is quit work, this moment, LED light was extinguished.
The 6th embodiment
A kind of lithium battery heat preserving method is provided in the sixth embodiment of the invention; This method is used the lithium battery attemperator among the 4th embodiment; This method temperature limit point can be set to more a plurality of; For example be made as 35 ℃ of 0 ℃ of 5 ℃ of the first low temperature threshold values and the second low temperature threshold value, 30 ℃ of first high temperature threshold value and second high temperature threshold value, also be provided with comparator and control chip in the temperature-control circuit.Manual master switch SW when opening on insulation booth 1 lid starts working temperature-control circuit, and this moment, LED light was shinny;
When the temperature that detects lithium battery as temperature detecting module Rt is higher than 30 ℃ of first high temperature threshold value; The energising of the phase-changing energy storage material of precooling attitude is started working in the register 3 in the temperature control automatic switch module Kt A.T.C control circuit; Absorb the heat of lithium battery; Thereby the lithium battery ambient temperature is reduced, and its power is first heat radiation power;
When the temperature that detects lithium battery as temperature detecting module Rt is higher than 35 ℃ of second high temperature threshold value; The phase-changing energy storage material energising beginning of the precooling attitude in the register 3 in the temperature control automatic switch module Kt A.T.C control circuit is with bigger current work; Absorb the heat of lithium battery; Thereby the lithium battery ambient temperature is reduced, and its power is second heat radiation power, and this second heat radiation power is greater than first heat radiation power.
When the temperature that detects lithium battery at temperature detecting module Rt is lower than 5 ℃ of the first low temperature threshold values; Temperature control automatic switch module Kt connects temperature-control circuit automatically; Temperature control automatic switch module Kt controls temperature-control circuit, and the phase-changing energy storage material energising of the preheating state in the register 3 in the temperature-control circuit is at this moment started working, to the lithium battery evolution of heat; Thereby the lithium battery ambient temperature is raise, and its power is the first heat absorption power;
When the temperature that detects lithium battery at temperature detecting module Rt is lower than 0 ℃ of the second low temperature threshold value; Temperature control automatic switch module Kt controls temperature-control circuit; The phase-changing energy storage material energising of the preheating state in the register 3 in the temperature-control circuit is at this moment started working, and to the lithium battery evolution of heat, thereby the lithium battery ambient temperature is raise; Its power is the second heat absorption power, and this second heat absorption power is greater than the first heat absorption power.
Be in 5 ℃ between 30 ℃ the time when temperature detecting module Rt detects the lithium battery ambient temperature, the phase-changing energy storage material in the temperature control automatic switch module Kt break-off signal control circuit, this moment register 3 is not worked.So, even the lithium battery ambient temperature remains between 5 ℃ to 30 ℃.When the user does not need the serviceability temperature regulatory function, close the manual master switch SW on insulation crust 1 lid, temperature-control circuit is quit work, this moment, LED light was extinguished.
The 7th embodiment
In the 7th embodiment; The lithium battery attemperator; Comprise the insulation crust 1 that is used to place lithium battery; The incubation chamber 2 that in insulation crust 1, is provided with, be placed on lithium battery and register 3 in the incubation chamber 2, in this insulation crust 1, also be provided with temperature-control circuit, this temperature-control circuit is by said lithium battery power supply and be used for controlling automatically said lithium battery ambient temperature.
Said insulation crust 1 is the box body that plays the protection supporting role that insulating material constitutes, and is preferred, and this cell material is to have good effect of heat insulation, have material higher-strength, that have the good insulation performance, for example, and plastics, plastic cement, resin etc.Said box body/insulation booth 1 inside also is provided with heat insulation box 2 again, and said temperature-adjusting device 3 is arranged on the inner surface of said heat insulation box 2 box bodys.
Said temperature-control circuit comprises temperature detecting module Rt, temperature control automatic switch module Kt and register R, and said temperature detecting module Rt is connected with said temperature control automatic switch module Kt, and said temperature control automatic switch module Kt connects with said register R.
Said temperature-control circuit also comprises manual master switch SW that is connected in the circuit and the indicator light 6 that is used to indicate circuit working state.Said indicator light can be LED light, perhaps also can be the indicator light of other kinds.
The protective circuit plate 5 of said temperature-control circuit and lithium battery integrates, and said protective circuit plate 5 places on the electric core 4 of lithium battery.
Said insulation booth 1 lid is provided with the through hole that supplies manual master switch SW, indicator light 6 and power supply output line 7 to pass.
Said register 3 is the carbon fiber heating cloth that can generate heat, resistance wire etc.Lithium battery attemperator among this embodiment is applicable in the low temperature environment that only need generate heat, for example severe cold area.
The method for using of the lithium battery attemperator of the embodiment of the invention is: when needs use lithium battery or lithium battery group under low temperature environment; At first open the manual master switch SW on insulation booth 1 lid; Temperature-control circuit is started working, and this moment, LED light was shinny; Set the temperature limit point of temperature control automatic switch module Kt then, as be made as 5 ℃, promptly temperature control automatic switch module Kt is when temperature is higher than 5 ℃, and the automatic disconnection temperature-control circuit when temperature is lower than 5 ℃, is connected temperature-control circuit automatically; When temperature detecting module Rt detects the lithium battery ambient temperature and is lower than 5 ℃; Temperature control automatic switch module Kt connects temperature-control circuit, and carbon fiber heating cloth or the resistance wire heating power in the register discharges heat at this moment; Thereby the lithium battery ambient temperature is raise; When temperature detecting module Rt detects the lithium battery ambient temperature and is higher than 5 ℃, temperature control automatic switch module Kt break-off signal control circuit, this moment, carbon fiber heating cloth 3 or resistance wire 3 stopped heating.So, even remaining at, the lithium battery ambient temperature is higher than 5 ℃ working temperature.
The 8th embodiment
In the 8th embodiment; The lithium battery attemperator; Comprise the insulation crust 1 that is used to place lithium battery; The incubation chamber 2 that in insulation crust 1, is provided with, be placed on lithium battery and register 3 in the incubation chamber 2, in this insulation crust 1, also be provided with temperature-control circuit, this temperature-control circuit is by said lithium battery power supply and be used for controlling automatically said lithium battery ambient temperature.
Said insulation crust 1 is the box body that plays the protection supporting role that insulating material constitutes, and is preferred, and this cell material is to have good effect of heat insulation, have material higher-strength, that have the good insulation performance, for example, and plastics, plastic cement, resin etc.Said box body/insulation booth 1 inside also is provided with heat insulation box 2 again, and said temperature-adjusting device 3 is arranged on the inner surface of said heat insulation box 2 box bodys.
Said temperature-control circuit comprises temperature detecting module Rt, temperature control automatic switch module Kt and register R, and said temperature detecting module Rt is connected with said temperature control automatic switch module Kt, and said temperature control automatic switch module Kt connects with said register R.
Said temperature-control circuit also comprises manual master switch SW that is connected in the circuit and the indicator light 6 that is used to indicate circuit working state.Said indicator light can be LED light, perhaps also can be the indicator light of other kinds.
The protective circuit plate 5 of said temperature-control circuit and lithium battery integrates, and said protective circuit plate 5 places on the electric core 4 of lithium battery.
Said insulation booth 1 lid is provided with the through hole that supplies manual master switch SW, indicator light 6 and power supply output line 7 to pass.
Said register 3 is a fan, the phase-changing energy storage material of the precooling attitude that perhaps only need absorb heat.Lithium battery attemperator among this embodiment is applicable in the hot environment that only need freeze.
The method for using of the lithium battery attemperator of the embodiment of the invention is: when needs use lithium battery or lithium battery group under hot environment; At first open the manual master switch SW on insulation booth 1 lid; Temperature-control circuit is started working, and this moment, LED light was shinny; Set the temperature limit point of temperature control automatic switch module Kt then, as be made as 30 ℃, promptly temperature control automatic switch module Kt is when temperature is lower than 30 ℃, and the automatic disconnection temperature-control circuit when temperature is higher than 30 ℃, is connected temperature-control circuit automatically;
When temperature detecting module Rt detected the lithium battery ambient temperature and is higher than 30 ℃, temperature control automatic switch module Kt connected temperature-control circuit, fan 3 energising work this moment,, thereby the lithium battery ambient temperature is reduced; When temperature detecting module Rt detects the lithium battery ambient temperature and is lower than 30 ℃, temperature control automatic switch module Kt break-off signal control circuit, this moment, fan 3 quit work.So, even the lithium battery ambient temperature remains in the operational environment that is lower than 30 ℃.
The invention solves the problem that existing lithium battery is limited to by the environment for use temperature seriously; Common lithium battery can not only normally be used at normal temperatures; In extremely cold environment, can normally use equally; The life-span that can also postpone lithium battery, have simultaneously simple in structure, be easy to make, easy to use and adapt to good advantage.
Claims (10)
1. lithium battery attemperator; It is characterized in that: comprise the insulation booth shell that is used to place lithium battery; In insulation crust, be provided with incubation chamber; Lithium battery is arranged in the incubation chamber, in insulation crust and incubation chamber, also is provided with by said lithium battery power supply and is used for controlling automatically the temperature-control circuit of said lithium battery ambient temperature.
2. lithium battery attemperator according to claim 1; It is characterized in that: said temperature-control circuit comprises temperature detecting module, temperature control automatic switch module and register at least; Said temperature detecting module is connected with said temperature control automatic switch module, and said temperature control automatic switch module is connected with said register.
3. lithium battery attemperator according to claim 2 is characterized in that: said register is electrothermal refrigeration sheet, phase-changing energy storage material, carbon fiber heating cloth, resistance wire or fan.
4. lithium battery attemperator according to claim 1 is characterized in that: the material of said insulation booth shell is plastic cement, plastics or resin.
5. lithium battery attemperator according to claim 2 is characterized in that: said temperature-control circuit also comprises manual master switch that is connected in the circuit and the indicator light that is used to indicate circuit working state.
6. according to claim 2 or 5 described lithium battery attemperators, it is characterized in that: the protective circuit plate of said temperature-control circuit and lithium battery integrates, and said protective circuit plate places on the electric core of lithium battery.
7. lithium battery attemperator according to claim 5 is characterized in that: said insulation booth lid is provided with the through hole that supplies manual master switch, indicator light and power supply output line to pass.
8. one kind remains on the control method of predetermined work temperature range with lithium battery, and this method is used any one lithium battery attemperator among claim 1-7, it is characterized in that:
Set two interval end values of predetermined normal temperature;
Be in predetermined normal temperature when interval when detecting temperature, register is not worked;
When detecting temperature and be lower than the interval low temperature end value of predetermined normal temperature, start register, make that the ambient temperature around the lithium battery raises;
When detecting temperature and be higher than the interval high temperature end value of predetermined normal temperature, start register, make that the ambient temperature around the lithium battery reduces.
9. the method in according to Claim 8; It is characterized in that; Interval temperature end and the low-temperature end of predetermined temperature can be provided with two or more temperature end values or temperature threshold respectively; When the working temperature of detected lithium battery was in different end value zones, the control register was with different power work.
10. according to Claim 8 or the method in 9, it is characterized in that,
Interval temperature end and the low-temperature end of predetermined temperature is provided with two end values respectively,
When working temperature was lower than the first cryogenic temperature threshold value, register was worked with the first intensification power;
When working temperature was lower than the second cryogenic temperature threshold value, register was worked with the second intensification power;
Wherein, the first cryogenic temperature threshold value is lower than the second cryogenic temperature threshold value, and the first intensification power work is worked greater than the second intensification power;
When working temperature was lower than the first high-temperature temperature threshold value, register was with the first cooling power work;
When working temperature was lower than the second high-temperature temperature threshold value, register was with the second cooling power work;
Wherein, the first high-temperature temperature threshold value is lower than the second high-temperature temperature threshold value, and the first cooling power work is greater than the second cooling power work.
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| CN109802194A (en) * | 2019-01-17 | 2019-05-24 | 重庆大学 | Based on Peltier effect and heat pipe cooling battery pack and its thermal management algorithm |
| CN112002839A (en) * | 2019-05-27 | 2020-11-27 | 广州雷利诺车业有限公司 | Electric motorcycle and control method thereof |
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| CN114023994A (en) * | 2021-11-09 | 2022-02-08 | 天津大学 | Spliced phase-change insulation box for fuel cell |
| CN114520388A (en) * | 2022-02-08 | 2022-05-20 | 浙江荣泰电工器材股份有限公司 | Mica insulation box of five-series ternary lithium battery module for new energy automobile |
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