CN205564919U - Lithium iron phosphate battery heating device, battery and vehicle - Google Patents

Lithium iron phosphate battery heating device, battery and vehicle Download PDF

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Publication number
CN205564919U
CN205564919U CN201620110585.7U CN201620110585U CN205564919U CN 205564919 U CN205564919 U CN 205564919U CN 201620110585 U CN201620110585 U CN 201620110585U CN 205564919 U CN205564919 U CN 205564919U
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China
Prior art keywords
battery
temperature
heater
heating element
master controller
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CN201620110585.7U
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Chinese (zh)
Inventor
戴永波
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Chongqing Xin Yucheng Science And Technology Ltd
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Chongqing Xin Yucheng Science And Technology Ltd
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

Abstract

The utility model provides a lithium iron phosphate battery heating device, battery and vehicle, this battery heating device includes: temperature -detecting device, main control unit and heating element, this temperature -detecting device is connected with main control unit, and main control unit is connected with heating element, and heating element sets up around the battery, above -mentioned temperature -detecting device is used for detecting the surface temperature signal of battery to transmit this temperature signal to main control unit, above -mentioned main control unit is used for receiving temperature signal to control heating element's break -make is so that the surface temperature of battery is in the default temperature within range. The embodiment of the utility model provides a through utilizing main control unit control heating element to heat the battery to the surface temperature control who makes the battery is predetermineeing the within range, has guaranteed the discharging and the charge rate of lithium iron phosphate battery below 0 DEG C, and then has solved the problem that can not normally work at lithium iron phosphate battery below 0 DEG C.

Description

A kind of ferric phosphate lithium cell heater, battery and vehicle
Technical field
The utility model relates to battery technical field of heating, in particular to a kind of phosphoric acid Lithium iron battery heater, battery and vehicle.
Background technology
At present, due to lithium iron phosphate dynamic battery, there is life-span length, security height, charging speed Spend the advantage such as fast, high temperature resistant and be increasingly widely used, wherein, LiFePO4 power Battery life length is mainly reflected in: the cycle life of general lead-acid battery is left at 300-500 time The right side, and the cycle life of lithium iron phosphate dynamic battery is up to more than 2000 times, say, that The service life of lithium iron phosphate dynamic battery is more than 4 times of lead-acid battery;LiFePO4 moves Power battery security height is mainly reflected in: general cobalt acid lithium battery and lithium manganate battery are strongly Collision under can produce explosion phenomenon, it will the life security of consumer is constituted a threat to, and Even if lithium iron phosphate dynamic battery need to be through strict safety test in worst traffic accident In also will not produce explosion phenomenon, well solve because of the security hidden trouble that causes of blast; Lithium iron phosphate dynamic battery charging rate is mainly reflected in soon: due to lithium iron phosphate dynamic battery Distinctive performance, it is possible to achieve big electric current quick charge itself, and other batteries do not possess this Performance;Lithium iron phosphate dynamic battery is high temperature resistant to be mainly reflected in: general lithium manganate battery and cobalt The maximum bearing temperature of acid lithium battery is at about 200 DEG C, and lithium iron phosphate dynamic battery is Big bearing temperature is up to 350 DEG C-500 DEG C.
But, the low-temperature characteristics of lithium iron phosphate dynamic battery is poor, under cryogenic, Active material volume shrinks, and owing to conductive black major diameter is smaller, easily sinks into by activity material In the space that material is formed, it is impossible to form continuous print conductive channel, so that LiFePO4 power The low temperature performance of battery is deteriorated, and then can not meet the use demand of electrical source of power.
During realizing the utility model, utility model people finds in correlation technique at least There is problems in that lithium iron phosphate dynamic battery meeting in the case of temperature is less than about 0 DEG C The phenomenon that the velocity of discharge is slow or charging rate slows down occurs, thus affects LiFePO4 and move The normal use of power battery.
Utility model content
In view of this, the purpose of the utility model embodiment is to provide a kind of ferric phosphate Lithium battery heater, battery and vehicle, to solve due to LiFePO4 power electric Pond there will be the velocity of discharge in the case of temperature is less than about 0 DEG C and slowly or charges The phenomenon that speed slows down, thus affect asking of the normal use of lithium iron phosphate dynamic battery Topic.
First aspect, the utility model embodiment provides a kind of ferric phosphate lithium cell and adds Thermal, including:
Temperature-detecting device, master controller and heating element heater;Wherein, described temperature inspection Survey device to be connected with described master controller, described master controller and described heating element heater Being connected, described heating element heater is arranged at around described battery;
Described temperature-detecting device is arranged at the outer surface of described battery, is used for detecting institute State the temperature signal of battery surface, and by the transmission of described temperature signal to described main control Device;
Described master controller is connected with described temperature-detecting device to receive described temperature letter Number;Described master controller is connected with described heating element signal, and described battery is arranged at In the heated perimeter of described heating element heater;
Described master controller controls the logical of described heating element heater according to described temperature signal It is disconnected, so that the surface temperature of described battery is in preset temperature range.
In conjunction with first aspect, the utility model embodiment provides the first of first aspect Planting possible embodiment, wherein, above-mentioned heater also includes: electrical parameters detection Device, described electrical parameters detection device respectively with the output of described battery and described master Controller is connected;
Described electrical parameters detection device is used for gathering the electrical quantity of described battery, and by institute State electrical quantity transmission to described master controller;
Described master controller is connected with described electrical parameters detection device to receive described electricity ginseng Number, determines temperature when described battery reaches optimal discharge performance;
Described master controller is connected with described heating element signal, for according to described The temperature signal control that temperature during good discharge performance and described temperature-detecting device detect Make the break-make of described heating element heater so that the surface temperature of described battery be in described in Temperature during good discharge performance.
In conjunction with the first possible embodiment of first aspect or first aspect, this Utility model embodiment provides the embodiment that the second of first aspect is possible, its In, the probe of described temperature-detecting device is arranged at the heated perimeter of described heating element heater In addition.
In conjunction with the first possible embodiment of first aspect or first aspect, this Utility model embodiment provides the third possible embodiment of first aspect, its In, described master controller electrically connects with the output of described battery, to utilize described electricity Pond powers.
In conjunction with first aspect, the utility model embodiment provides the 4th of first aspect Kind possible embodiment, wherein, described heating element heater includes heating plate, described in add The bottom of described battery is located at by hot plate;
Or, it is described that described heating element heater includes that heater strip, described heater strip are coated on The surface of battery.
In conjunction with first aspect, the utility model embodiment provides the 5th of first aspect Planting possible embodiment, wherein, described master controller is used for receiving described temperature letter Number, and control the break-make of described heating element heater, so that at the surface temperature of described battery In the range of 5 DEG C to 10 DEG C.
In conjunction with first aspect, the utility model embodiment provides the 6th of first aspect Planting possible embodiment, wherein, above-mentioned heater also includes:
Over-temperature protection device, described over-temperature protection device includes temperature element and open circuit unit Part, described temperature element is located at described battery surface, and described breaking element is series at institute State on the power supply circuits of heating element heater, for monitoring described electricity at described temperature element The power supply electricity of described heating element heater is cut off when the surface temperature in pond is higher than preset temperature value Road.
Second aspect, the utility model embodiment additionally provides a kind of battery, this storage Battery includes battery and above-mentioned ferric phosphate lithium cell heater, and takes up described electricity Pond and the battery case of described battery heating device, wherein, described battery includes ferric phosphate Lithium battery.
In conjunction with second aspect, the utility model embodiment provides the first of second aspect Planting possible embodiment, wherein, above-mentioned battery case includes: heat-insulation layer, described guarantor Temperature layer is located at described battery case inwall.
The third aspect, the utility model embodiment additionally provides a kind of vehicle, this vehicle Including above-mentioned battery.
Ferric phosphate lithium cell heater, electric power storage in the offer of the utility model embodiment In pond and vehicle, this battery heating device includes: temperature-detecting device, master controller And heating element heater;Wherein, temperature-detecting device is connected with master controller, main control Device is connected with heating element heater, and heating element heater is arranged at around battery;Said temperature Detection device, for gathering the surface temperature signal of battery, and passes this temperature signal Transport to above-mentioned master controller;Above-mentioned master controller, for according to said temperature signal control Make the break-make of above-mentioned heating element heater, so that the surface temperature of battery is in preset temperature model In enclosing.The utility model embodiment is by utilizing main controller controls heating element heater to electricity Pond is heated, so that the surface temperature control of battery is in preset range, it is ensured that The electric discharge of ferric phosphate lithium cell and charge rate when ambient temperature is below 0 DEG C, and then Solve the ferric phosphate lithium cell cisco unity malfunction when ambient temperature is below 0 DEG C Problem.
For making above-mentioned purpose of the present utility model, feature and advantage to become apparent, Preferred embodiment cited below particularly, and coordinate appended accompanying drawing, it is described in detail below.
Accompanying drawing explanation
In order to be illustrated more clearly that the technical scheme of the utility model embodiment, below will The accompanying drawing used required in embodiment is briefly described, it will be appreciated that following Accompanying drawing illustrate only some embodiment of the present utility model, and it is right to be therefore not construed as The restriction of scope, for those of ordinary skill in the art, is not paying creativeness On the premise of work, it is also possible to obtain other relevant accompanying drawings according to these accompanying drawings.
Fig. 1 shows a kind of ferric phosphate lithium cell that the utility model embodiment is provided The structural representation of heater;
Fig. 2 shows the another kind of LiFePO4 electricity that the utility model embodiment is provided The structural representation of pond heater.
Detailed description of the invention
For making the purpose of the utility model embodiment, technical scheme and advantage clearer, under Face will be in conjunction with accompanying drawing in the utility model embodiment, to the technology in the utility model embodiment Scheme is clearly and completely described, it is clear that described embodiment is only this practicality Novel a part of embodiment rather than whole embodiments.Generally described in the accompanying drawing herein Can arrange with various different configurations with the assembly of the utility model embodiment illustrated and Design.Therefore, retouching in detail the embodiment of the present utility model provided in the accompanying drawings below State and be not intended to limit claimed scope of the present utility model, but be merely representative of this reality By novel selected embodiment.Based on embodiment of the present utility model, those skilled in the art The every other embodiment obtained on the premise of not making creative work, broadly falls into The scope of the utility model protection.
There will be in the case of temperature is less than about 0 DEG C in view of lithium iron phosphate dynamic battery The phenomenon that the velocity of discharge is slow or charging rate slows down, thus affect LiFePO4 power electric The normal use in pond.Based on this, the utility model embodiment provides a kind of LiFePO4 electricity Pond heater, battery and vehicle, be described below by embodiment.
The structural representation of ferric phosphate lithium cell heater as shown in Figure 1, this ferric phosphate Lithium battery heater includes: temperature-detecting device 101, master controller 102 and heating unit Part 103;Wherein, said temperature detection device 101 is connected with above-mentioned master controller 102, Above-mentioned master controller 102 is connected with above-mentioned heating element heater 103, above-mentioned heating element heater 103 It is arranged at around above-mentioned battery;
Said temperature detection device 101, for gathering the surface temperature signal of battery, and will The transmission of said temperature signal is to above-mentioned master controller 102;
Above-mentioned master controller 102, for controlling above-mentioned heating element heater according to said temperature signal The break-make of 103, so that the surface temperature of above-mentioned battery is in preset temperature range.
Wherein, said temperature detection device 101 can be temperature sensor, it is also possible to be half Conductor thermistor, it is also possible to be other temperature measurement device, wherein, to battery surface The measurement of temperature can use any of the above-described kind of metering system or two or more metering system Combination, any of the above temperature-measuring element can realize gather battery surface temperature Signal, and if the mode using two or more temperature-measuring element to combine, then can make The result of the battery surface temperature detected is more accurate.It addition, those skilled in the art's energy Enough expect adopting the temperature signal gathering battery surface in other ways, gather battery table The mode of surface temperature does not affect technique effect of the present utility model.The equivalent variations of aforesaid way Or replace, all should contain within protection domain of the present utility model;It addition, above-mentioned heating Element 103 can also be heater strip or any heating element heater such as heating plate or heating rod 103, either which kind of mode of heating is all in protection domain of the present utility model.
In the utility model embodiment, temperature detection dress is set near ferric phosphate lithium cell Put 101, by utilizing temperature-detecting device 101 to gather the surface temperature of ferric phosphate lithium cell Signal, temperature-detecting device 101 is connected with master controller 102, and master controller 102 connects Receive the surface temperature signal of the battery that said temperature detection device 101 gathers, and by this temperature Compare with default temperature range, when the surface temperature of battery is less than preset temperature range Minimum of a value time, trigger above-mentioned heating element heater 103 and heat, when the surface temperature of battery During more than the maximum of preset temperature range, trigger above-mentioned heating element heater 103 and stop heating, With by the surface temperature control of battery in preset temperature range, and then solve LiFePO4 electricity Pond occurs that in the case of temperature is less than about 0 DEG C the velocity of discharge is slow or charging rate subtracts Slowly the normal problem used of battery is affected.
It should be noted that the battery heating device that the utility model embodiment provides is the most permissible The charging process of ferric phosphate lithium cell is carried out computer heating control, again can be to ferric phosphate lithium cell Discharge process carry out computer heating control.
During reality applies above-mentioned battery heating device, it is contemplated that above-mentioned battery is installed The vehicle of heater there may be situation that is long-time idle or that park, when vehicle is in advance If in the time without starting (as when vehicle when 48 is little interior without starting), now can be by The automatic heater switch of heating element heater 103 is turned off, to prevent because heating expends battery repeatedly Electric energy;Again the automatic heater switch of heating element heater 103 is opened when needing to use this vehicle, Opening switch about 1 hour can be by the surface temperature control of battery in preset temperature range In, to start this vehicle.
Concrete, above-mentioned master controller 102, for controlling above-mentioned according to said temperature signal Above-mentioned battery is heated or stops heating by heating element heater 103, so that above-mentioned battery Surface temperature control is in the range of 5 DEG C to 10 DEG C.
Wherein, in the utility model embodiment, by the surface temperature control of battery at 5 DEG C Being to grope through practice and obtain in the range of 10 DEG C, the characteristic of ferric phosphate lithium cell is to work as environment When temperature is less than 0 DEG C, the discharge current of this battery is less than 10%;When environment temperature is higher than When 5 DEG C, the discharge current of this battery reaches 60%;And when environment temperature is higher than 70 °, The generation current of this battery is reduced to 20%, therefore, generally, and ferric phosphate lithium cell Why preset temperature range, between 5 DEG C-60 DEG C, is elected as by the environment temperature of optimal discharge 5 DEG C to 10 DEG C, main cause is: when the surface temperature of ferric phosphate lithium cell is higher than 5 DEG C, its Discharge current has reached 60%, and now the discharge power of battery can normally start vehicle, and this Time start battery vehicle after all can improve due to the temperature of battery heat release enging cabin or driver's cabin To ensure that battery can enter normal work;And the maximum of preset temperature range is set as 10 DEG C, in order to reduce the frequent starting of heating element heater 103, simultaneously, it is possible to reduce heating unit The power consumption of part 103.
In view of the temperature corresponding to the optimal discharge performance of battery may with the model of battery or Person is that the factors such as the use time of battery are correlated with, based on this, as in figure 2 it is shown, above-mentioned phosphoric acid Lithium iron battery heater also includes: electrical parameters detection device 104, above-mentioned electrical parameters detection Device 104 is connected with the output of above-mentioned battery and above-mentioned master controller 102 respectively;
Above-mentioned electrical parameters detection device 104, for gathering the electrical quantity of battery, and transmits extremely Above-mentioned master controller 102;
Above-mentioned master controller 102, is additionally operable to according to above-mentioned electrical quantity, determines that above-mentioned battery reaches To temperature during optimal discharge performance, and control above-mentioned heating element heater 103 and increase or reduce The temperature of above-mentioned battery, so that above-mentioned battery is in optimum temperature.
In the utility model embodiment, detect phosphorus in real time by electrical parameters detection device 104 The electrical quantity of acid lithium iron battery output, and this electrical quantity is transmitted to master controller 102, should Master controller 102 is according to the change heating-up temperature to heating element heater 103 of the electrical quantity received It is controlled, when the discharge current of battery increases, then controls heating element heater 103 and add Hot temperature, to increase the surface temperature of battery;When the discharge current of battery reduces, then control Heating element heater 103 processed reduces heating-up temperature, to reduce the surface temperature of battery;So that phosphorus Acid lithium iron battery is in the temperature corresponding to optimal discharge electric current, is achieved according to battery Discharge scenario dynamically controls the function of battery temperature, and then makes ferric phosphate lithium cell reach more preferable Discharge effect.
It addition, above-mentioned battery heating device also includes: protection module, this protection module is respectively It is connected with above-mentioned master controller 102 and above-mentioned ferric phosphate lithium cell, above-mentioned electrical parameters detection Device 104 detects the electrical quantity of ferric phosphate lithium cell output, and by the transmission of this electrical quantity to main Controller 102, this master controller 102 is additionally operable to receive above-mentioned electrical parameters detection device 104 The electrical quantity of the battery output gathered, and judge that whether this electrical quantity is at default electrical parameter In the range of, wherein, the normal operating conditions institute of this default electrical parameter Range Representation battery Corresponding electrical quantity, when the electrical quantity of battery output is not in above-mentioned default electrical parameter scope Time interior, illustrate that battery is in abnormal operation, as overcharged, cross put, load excessive or The abnormalities such as short circuit, now, master controller 102 will trigger above-mentioned protection module and start work Making, this protection module controls power supply and disconnects.
Wherein, above-mentioned protection module can include overload protective device, it is also possible to includes short circuit guarantor Protecting device, it is also possible to be to overcharge protector or Cross prevention device, wherein, above-mentioned short circuit is protected Protect device and can use fuse, low-voltage circuit breaker or special short-circuit protection, above-mentioned electricity Parameter can be current value or magnitude of voltage, when above-mentioned master controller 102 judges acquisition When magnitude of voltage is less than the first preset voltage value, then trigger above-mentioned overload protective device startup work, So that this overload protective device cuts off this power supply circuits;When above-mentioned master controller 102 judges to obtain Current value more than the first pre-set current value time, then trigger above-mentioned short-circuit protector startup work, So that this short-circuit protector cuts off this power supply circuits;When above-mentioned master controller 102 judges battery Charging voltage more than the second preset voltage value time, then trigger above-mentioned overcharge protector start work Make, so that this overcharges protector cuts off charging circuit.
The battery heating device that the utility model embodiment provides both can be to ferric phosphate lithium cell Charging process protect, the discharge process of ferric phosphate lithium cell can be protected again, The Main Function of above-mentioned protection module is when detecting that electrical quantity occurs abnormal, disconnects battery Power supply circuits with load.
In the utility model embodiment, detect phosphorus in real time by electrical parameters detection device 104 The electrical quantity of acid lithium iron battery output, and this electrical quantity is transmitted to master controller 102, should This electrical quantity is contrasted by master controller 102 with default electrical parameter values, according to comparing result Control the startup of protection module and do not start, such that it is able to realize overcharging, excessively put, loading The abnormality such as excessive or short-circuit is controlled, it is ensured that the security of single unit system.
Further, in order to prevent the heating-up temperature of heating element heater 103 from affecting temperature detection dress Putting the degree of accuracy of 101 detection battery temperatures, the probe of said temperature detection device 101 is arranged Beyond the heated perimeter of above-mentioned heating element heater 103.
In the utility model embodiment, use and the probe of temperature-detecting device 101 is arranged Mode beyond the heated perimeter of heating element heater 103, can improve temperature-detecting device 101 Measure the accuracy of the battery surface temperature obtained.
Further, above-mentioned master controller 102 electrically connects with the output of above-mentioned battery, with Utilize above-mentioned battery to power, say, that in the utility model embodiment, use master control The mode that device 102 processed is connected with the output of battery, for master controller 102 and heating element heater 103 provide electric energy, it is not necessary to master controller 102 and heating element heater 103 are carried out by external power supply Power supply.
Concrete, above-mentioned heating element heater 103 includes that heating plate, above-mentioned heating plate are located at above-mentioned The bottom of battery;
Or, above-mentioned heating element heater 103 includes that heater strip, above-mentioned heater strip are coated on above-mentioned The surface of battery.
Battery is heated by the mode no matter using heating plate, or uses the side of heater strip Battery is heated by formula, or using other modes heated that battery carries out heating all exists In protection domain of the present utility model, can select according to actual conditions.
Occur that exception or thermometric be not punctual in view of when temperature measuring equipment, may cause main Controller 102 can accurately not control heating element heater 103 and carry out heating or stop heating, Based on this, above-mentioned ferric phosphate lithium cell heater also includes:
Over-temperature protection device, above-mentioned over-temperature protection device includes temperature element and breaking element, Above-mentioned battery surface is located at by above-mentioned temperature element, and above-mentioned breaking element is series at above-mentioned heating unit On the power supply circuits of part 103, for monitoring the surface of above-mentioned battery at above-mentioned temperature element The power supply circuits of above-mentioned heating element heater 103 are cut off when temperature is higher than preset temperature value.
The utility model embodiment provide ferric phosphate lithium cell heater, battery and In vehicle, by utilizing master controller 102 to control heating element heater 103, battery is heated, So that the surface temperature control of battery is in preset range, it is ensured that be 0 DEG C in ambient temperature The electric discharge of ferric phosphate lithium cell and charge rate time following, and then solve and in ambient temperature be The problem of ferric phosphate lithium cell cisco unity malfunction when less than 0 DEG C;Further, will heating temperature Degree controls, in the range of 5 DEG C to 10 DEG C, both to have ensure that the normal starting load of battery discharge current, Turn avoid heating element heater 103 frequent starting;Further, by increasing electrical quantity inspection Surveying device 104, this electrical parameters detection device 104 detects ferric phosphate lithium cell output in real time Electrical quantity, and this electrical quantity is transmitted to master controller 102, this master controller 102 basis The heating-up temperature of heating element heater 103 is controlled by the change of the electrical quantity received, so that Ferric phosphate lithium cell is in the temperature corresponding to optimal discharge electric current, is achieved according to battery Discharge scenario dynamically control the function of battery temperature, and then make ferric phosphate lithium cell reach more Good discharge effect.
The utility model embodiment also provides for a kind of battery, and this battery includes battery and upper State ferric phosphate lithium cell heater, and take up above-mentioned battery and above-mentioned battery heating device Battery case, wherein, above-mentioned battery includes ferric phosphate lithium cell.
For the battery ambient heat losses speed that slows down, above-mentioned battery case includes: heat-insulation layer, Above-mentioned heat-insulation layer is located at above-mentioned battery case inwall.
Concrete, by arranging heat-insulation layer on the inwall of battery case, can slow down battery table The bleed rate of face heat, and then slow down the reduction of battery surface temperature.
The utility model embodiment also provides for a kind of vehicle, and this vehicle includes above-mentioned battery, Utilize the battery being provided with above-mentioned ferric phosphate lithium cell heater as the power supply electricity of vehicle Source, solve when ambient temperature is below 0 DEG C ferric phosphate lithium cell can not regular picture, And then the problem that vehicle even load can not be started.
Understanding based on above-mentioned analysis, compared with correlation technique, the utility model embodiment provides Ferric phosphate lithium cell heater, battery and vehicle, wherein, this battery heating device By utilizing master controller 102 to control heating element heater 103, battery is heated, so that electric The surface temperature control in pond is in preset range, it is ensured that below when ambient temperature is 0 DEG C The electric discharge of ferric phosphate lithium cell and charge rate, so solve ambient temperature be 0 DEG C with The problem of ferric phosphate lithium cell cisco unity malfunction time lower;Further, by heating-up temperature control System, in the range of 5 DEG C to 10 DEG C, both ensure that the normal starting load of battery discharge current, again Avoid heating element heater 103 frequent starting;Further, by increasing electrical parameters detection Device 104, this electrical parameters detection device 104 detects the electricity of ferric phosphate lithium cell output in real time Parameter, and this electrical quantity is transmitted to master controller 102, this master controller 102 is according to connecing The heating-up temperature of heating element heater 103 is controlled by the change of the electrical quantity received, so that phosphorus Acid lithium iron battery is in the temperature corresponding to optimal discharge electric current, is achieved according to battery Discharge scenario dynamically controls the function of battery temperature, and then makes ferric phosphate lithium cell reach more preferable Discharge effect.
It should also be noted that similar label and letter represent similar terms in following accompanying drawing, because of This, be defined in the most a certain Xiang Yi accompanying drawing, then it is right to need not in accompanying drawing subsequently It defines further and explains.
In description of the present utility model, it should be noted that term " " center ", " on ", The orientation of the instruction such as D score, "left", "right", " vertically ", " level ", " interior ", " outward " Or position relationship is based on orientation shown in the drawings or position relationship, or this utility model The orientation usually put during product use or position relationship, be for only for ease of this practicality of description Novel and simplification describes rather than indicates or imply that the device of indication or element must have spy Fixed orientation, with specific azimuth configuration and operation, therefore it is not intended that new to this practicality The restriction of type.Additionally, term " first ", " second ", " the 3rd " etc. are only used for differentiation and retouch State, and it is not intended that indicate or hint relative importance.
In description of the present utility model, in addition it is also necessary to explanation, unless otherwise clear and definite rule Fixed and limit, term " is arranged ", " installation ", " being connected ", " connection " should be interpreted broadly, Connect for example, it may be fixing, it is also possible to be to removably connect, or be integrally connected;Can To be mechanical connection, it is also possible to be electrical connection;Can be to be joined directly together, it is also possible in by Between medium be indirectly connected to, can be the connection of two element internals.Common for this area For technical staff, concrete in the utility model of above-mentioned term can be understood with concrete condition Implication.
Last it is noted that embodiment described above, concrete reality the most of the present utility model Execute mode, in order to the technical solution of the utility model to be described, be not intended to limit, this practicality Novel protection domain is not limited thereto, although with reference to previous embodiment to the utility model It is described in detail, it will be understood by those within the art that: any be familiar with basis Those skilled in the art are in the technical scope that the utility model discloses, and it is the most permissible Technical scheme described in previous embodiment is modified and maybe can readily occur in change, or Wherein portion of techniques feature is carried out equivalent;And these are revised, change or replace, The essence not making appropriate technical solution departs from the spirit of the utility model embodiment technical scheme And scope.All should contain within protection domain of the present utility model.Therefore, this practicality is new The protection domain of type should described be as the criterion with scope of the claims.

Claims (10)

1. a ferric phosphate lithium cell heater, it is characterised in that including: temperature detection Device, master controller and heating element heater;Wherein, described temperature-detecting device and described master control Device processed is connected, and described master controller is connected with described heating element heater, described heating element heater It is arranged at around described battery;
Described temperature-detecting device is arranged at the outer surface of described battery, is used for detecting described electricity The temperature signal of pool surface, and by the transmission of described temperature signal to described master controller;
Described master controller is connected with described temperature-detecting device to receive described temperature signal; Described master controller is connected with described heating element signal, and described battery is arranged at described heating In the heated perimeter of element;
Described master controller controls the break-make of described heating element heater according to described temperature signal, with The surface temperature making described battery is in preset temperature range.
Ferric phosphate lithium cell heater the most according to claim 1, it is characterised in that Described heater also includes: electrical parameters detection device, and described electrical parameters detection device is respectively It is connected with the output of described battery and described master controller;
Described electrical parameters detection device is used for gathering the electrical quantity of described battery, and by described electricity Parameter transmission is to described master controller;
Described master controller is connected with described electrical parameters detection device to receive described electrical quantity, And determine temperature when described battery reaches optimal discharge performance;
Described master controller is connected with described heating element signal, for most preferably putting according to described The temperature signal that temperature during electrical property and described temperature-detecting device detect adds described in controlling The break-make of thermal element, during so that the surface temperature of described battery is in described optimal discharge performance Temperature.
3., according to the ferric phosphate lithium cell heater described in claims 1 or 2, it is special Levying and be, the probe of described temperature-detecting device is arranged at the heated perimeter of described heating element heater In addition.
4., according to the ferric phosphate lithium cell heater described in claims 1 or 2, it is special Levying and be, described master controller electrically connects with the output of described battery, to utilize described electricity Pond powers.
Ferric phosphate lithium cell heater the most according to claim 1, it is characterised in that Described heating element heater includes that heating plate, described heating plate are located at the bottom of described battery;
Or, described heating element heater includes that heater strip, described heater strip are coated on described battery Surface.
Ferric phosphate lithium cell heater the most according to claim 1, it is characterised in that Described master controller is used for receiving described temperature signal, and controls the break-make of described heating element heater, So that in the range of the surface temperature of described battery is in 5 DEG C to 10 DEG C.
Ferric phosphate lithium cell heater the most according to claim 1, it is characterised in that Described heater also includes:
Over-temperature protection device, described over-temperature protection device includes temperature element and breaking element, Described battery surface is located at by described temperature element, and described breaking element is series at described heating unit On the power supply circuits of part, for monitoring the surface temperature of described battery at described temperature element The power supply circuits of described heating element heater are cut off during higher than preset temperature value.
8. a battery, it is characterised in that described battery includes battery and as right is wanted Seek the ferric phosphate lithium cell heater described in any one of 1-7, and take up described battery and The battery case of described battery heating device, wherein, described battery includes ferric phosphate lithium cell.
Battery the most according to claim 8, it is characterised in that described battery case bag Including: heat-insulation layer, described heat-insulation layer is located at described battery case inwall.
10. a vehicle, it is characterised in that include as described in any one of claim 8-9 Battery.
CN201620110585.7U 2016-02-03 2016-02-03 Lithium iron phosphate battery heating device, battery and vehicle Withdrawn - After Issue CN205564919U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105514527A (en) * 2016-02-03 2016-04-20 重庆新御成科技有限公司 Heating device of lithium iron phosphate battery, storage battery and vehicle
CN106450519A (en) * 2016-10-24 2017-02-22 湖南金杯新能源发展有限公司 Battery charging protective device and method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105514527A (en) * 2016-02-03 2016-04-20 重庆新御成科技有限公司 Heating device of lithium iron phosphate battery, storage battery and vehicle
CN105514527B (en) * 2016-02-03 2018-10-30 重庆新御成科技有限公司 A kind of ferric phosphate lithium cell heating device, accumulator and vehicle
CN106450519A (en) * 2016-10-24 2017-02-22 湖南金杯新能源发展有限公司 Battery charging protective device and method
CN106450519B (en) * 2016-10-24 2019-03-15 湖南金杯新能源发展有限公司 Protector for battery charging and method

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