CN203503757U - Battery box heat management system of electric automobile - Google Patents

Battery box heat management system of electric automobile Download PDF

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Publication number
CN203503757U
CN203503757U CN201320645507.3U CN201320645507U CN203503757U CN 203503757 U CN203503757 U CN 203503757U CN 201320645507 U CN201320645507 U CN 201320645507U CN 203503757 U CN203503757 U CN 203503757U
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China
Prior art keywords
management system
battery
heat
battery module
reversing switch
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Expired - Lifetime
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CN201320645507.3U
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Chinese (zh)
Inventor
邹忠月
郝永辉
李文斌
曹秉刚
陈辉
王丹
王丽平
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SANMENXIA SUDA TRANSPORTATION ENERGY SAVING TECHNOLOGY Co Ltd
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SANMENXIA SUDA TRANSPORTATION ENERGY SAVING TECHNOLOGY Co 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

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Abstract

The utility model discloses a battery box heat management system of an electric automobile. The battery box heat management system comprises a battery management system, a polarity reversing switch, a battery module, a semiconductor chilling plate, a heat pipe, cooling fins and a temperature sensor, wherein the temperature sensor is pasted on the battery module; the heat pipe is connected with the semiconductor chilling plate and the cooling fins; the battery management system is connected with the temperature sensor; the battery management system is connected with the polarity reversing switch; the polarity reversing switch is connected with the semiconductor chilling plate; the on-off operation of the polarity reversing switch as well as a positive electrode and a negative electrode of the polarity reversing switch are controlled by the batter management system according to the detection result of the temperature sensor. By utilizing the battery box heat management system, the purpose of cooling the battery module can be realized, the purpose of heating the battery module can be also realized, and the structure is simple.

Description

A kind of battery case heat management system of electric automobile
Technical field
The utility model relates to heat-exchange system, especially a kind of battery case heat management system of electric automobile.
Background technology
Discharging and recharging of batteries of electric automobile all needs to be in certain temperature range, excess Temperature and too lowly all can affect discharging and recharging of battery, reduces the life-span of battery, reduces the continual mileage of electric automobile, thereby strengthened the cost of electric automobile, hindered the development of electric automobile and popularize; When serious, battery also can be short-circuited, and threatens personnel's personal safety by bus.
Existing electric automobile battery box heat management mode mainly contains air cooling, liquid cooling and employing phase-change material.Adopt the mode of air cooling simple in structure, only need be at the inlet and outlet provided with fan of battery case, thus by the Air Flow of strengthening in battery case, play heat radiation object, but this type of cooling cooling effect when ambient temperature is higher is not good enough; Adopt liquid cooling mode need battery case connect outward heater and refrigerator to cooling circuit in liquid heat and freeze, but this mode is harsh to the sealing requirements of fluid loop, desired structure is complicated, once leak of liquid in loop, easily cause battery short circuit, ride personnel's safety of serious threat.Adopt phase-change material not need extra equipment, simple in structure, but in the situation that automobile works long hours continuously, radiating effect is undesirable, and start automobile when ambient temperature is very low, cannot carry out preheating to battery module.
Utility model content
The purpose of this utility model has been to provide a kind of cooling and heating electric automobile battery box heat management system rapid, simple in structure, makes the battery module of electric automobile reach rapidly the temperature range of normal work.
The battery case heat management system of the electric automobile that the utility model provides, comprise battery management system 2, polarity reversing switch 3, battery module 6, semiconductor chilling plate 8, heat pipe 9, radiating fin 10 and temperature sensor 11, temperature sensor 11 is affixed on battery module 6, heat pipe 9 connects semiconductor chilling plate 8 and radiating fin 10, battery management system 2 is connected with temperature sensor 11, battery management system 2 is connected with polarity reversing switch 3, polarity reversing switch 3 is connected with semiconductor chilling plate 8, wherein: battery management system 2 is according to the testing result of temperature sensor 11, control the switch of polarity reversing switch 3, and the both positive and negative polarity of polarity reversing switch 3.
Further: described heat management system also comprises conducting strip 7, described conducting strip 7 is arranged between semiconductor chilling plate 8 and battery module 6.
Further: described heat management system also comprises thermal insulation layer 5, described thermal insulation layer 5 separates battery module and radiating fin 10.
Further: described heat management system also comprises thermovent 1, in described thermovent 1, be provided with refrigeration unit is installed, refrigeration unit is wind cooling unit or liquid cooling unit.
Further: described conducting strip 7 is to be made by Heat Conduction Material.
Further: described thermal insulation layer 5 is to be made by heat-barrier material.
Compared with prior art, this patent both can be realized the cooling to battery module 6, also can realize the heating to battery module 6, simple in structure.Semiconductor chilling plate 8 is middle only every conducting strip 7 with battery module 6, refrigeration and to heat speed fast, the heat transfer performance of heat pipe 9 is good, can meet well the inside and outside heat exchange of Battery case 4, can make battery reach rapidly the temperature range of normal work, effect is remarkable.
Accompanying drawing explanation
Fig. 1 is the electric automobile battery box heat management system structure schematic diagram described in the utility model embodiment mono-;
Fig. 2 is the control circuit figure of the electric automobile battery box heat management system described in the utility model embodiment mono-;
Fig. 3 is the flow chart of the electric automobile battery box thermal management algorithm described in the utility model embodiment bis-.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Fig. 1 has provided the structural representation of the electric automobile battery box heat management system described in embodiment mono-, electric automobile battery box heat management system comprises thermovent 1, battery management system 2, polarity reversing switch 3, Battery case 4, thermal insulation layer 5, battery module 6, conducting strip 7, semiconductor chilling plate 8, heat pipe 9, radiating fin 10 and temperature sensor 11, thermal insulation layer 5 separates battery module and radiating fin 10, temperature sensor 11 is affixed on battery module 6, conducting strip 7 is between semiconductor chilling plate 8 and battery module 6, heat pipe 9 is flat, one end and semiconductor chilling plate 8 are tightly fitted, the other end is connected with radiating fin 10.
Thermal insulation layer 5 is made by heat-barrier material, plays heat-insulating effect between radiating fin 10 and battery module 6.
Conducting strip 7 is made by the good material of heat conductivility, and conducting strip 7 is tightly affixed between battery module 6 and semiconductor chilling plate 8, can make battery module 6 temperature even, prevents that local temperature is too high or too low, affects the life-span of battery module.
The interior logical refrigeration unit of thermovent 1, refrigeration unit can be wind cooling unit, can be also liquid cooling unit.In this embodiment, adopt wind cooling unit, at thermovent, 1 place installs radiator fan additional, plays the object with Battery case 4 external environment condition heat exchanges.
The input termination battery module 6 of polarity reversing switch 3, output termination semiconductor chilling plate 8, polarity reversing switch 3 is controlled by battery management system 2.
Temperature sensor 11 detects the temperature of battery module 6, and testing result is sent to battery management system 2, battery management system 2 is controlled the both positive and negative polarity of polarity reversing switch 3 output end voltages, cold junction and the hot junction of semiconductor chilling plate 8 can be changed according to testing result, thereby battery module 6 refrigeration or heating can be given.
As shown in Figure 2, the control circuit figure of the electric automobile battery box heat management system described in embodiment mono-, temperature sensor 11 detects the temperature of battery module 6, and testing result is sent to battery management system 2, battery management system 2 is controlled polarity reversing switch 3 and is arranged on the radiator fan of thermovent 1.Polarity reversing switch 3 input termination battery modules 6, output termination semiconductor chilling plate 8.Radiator fan is powered by battery module 6.
According to the temperature range of battery module 6 normal work, battery management system 2 arranges high temperature threshold value T h, low temperature threshold value T land temperature threshold T 0, T 0lower than high temperature threshold value T hand higher than low temperature threshold value T l.When the temperature of battery module 6 surpasses T htime, need to give battery module 6 heat radiations; When the temperature of battery module 6 is lower than T ltime, need to give battery module 6 heating; 8 work a period of times of semiconductor chilling plate, the temperature of battery module 6 reaches T 0after, stop the heating of battery module 6 or cooling.
As shown in Figure 3, the flow chart of the electric automobile battery box thermal management algorithm described in the utility model embodiment bis-, the temperature that temperature sensor 11 detects battery module 6 surpasses the high temperature threshold value T setting htime, battery management system 2 is controlled polarity reversing switch 3 output end voltages, semiconductor chilling plate 8 is just being connect, now semiconductor chilling plate 8 freezes with one end of conducting strip 7 laminatings, thereby reduce the temperature of battery module 6, semiconductor chilling plate 8 heats with one end of heat pipe 9 laminatings, and the heat of generation passes to radiating fin 10 through heat pipe 9, radiating fin 10 by heat outside thermovent 1 is delivered to Battery case 4.After work a period of time, the temperature that battery module 6 detected when temperature sensor 11 reaches temperature threshold T 0time, battery management system 2 is controlled polarity reversing switch 3 and is disconnected, and stops semiconductor chilling plate 8 work.
Temperature sensor 11 detects the temperature of battery module 6 lower than the low temperature threshold value T setting ltime, battery management system 2 is controlled polarity reversing switch 3 output end voltages, make semiconductor chilling plate 8 reversal connections, now semiconductor chilling plate 8 heats with one end of conducting strip 7 laminatings, thereby the temperature of rising battery module 6, semiconductor chilling plate 8 freezes with one end of heat pipe 9 laminatings, through heat pipe 9 and radiating fin 10, carries out heat exchange, and radiating fin 10 carries out heat exchange through thermovent 1 and Battery case 4 external environment conditions.After work a period of time, the temperature that battery module 6 detected when temperature sensor 11 reaches temperature threshold T 0time, battery management system 2 is controlled polarity reversing switch 3 and is disconnected, and stops semiconductor chilling plate 8 work.
Temperature sensor 11 detects the temperature of battery module 6 in temperature threshold T 0time, battery management system 2 is controlled polarity reversing switch 3 and is disconnected, and semiconductor chilling plate 8 is not worked.
Above-described embodiment both can be realized battery module was lowered the temperature, and also can realize the heating to battery module, simple in structure.In the middle of semiconductor chilling plate and battery, only every conducting strip, freeze and to heat speed fast, can make battery reach rapidly the temperature range of normal work, effect is remarkable.The heat transfer performance of heat pipe is good, can meet well the inside and outside heat exchange of Battery case 4.The utility model can be realized the fast-refrigerating of battery module and heat, and makes battery reach rapidly the temperature range of normal work.
Above-mentioned various scene is only preferably execution mode of the utility model, not the utility model is done to any pro forma restriction, and protection range of the present utility model is not limited to this.Anyly be familiar with those skilled in the art in the technical scope that the utility model discloses, within making various distortion, supplement or replace and all belonging to protection range of the present utility model.

Claims (6)

1. the battery case heat management system of an electric automobile, comprise battery management system (2), polarity reversing switch (3), battery module (6), semiconductor chilling plate (8), heat pipe (9), radiating fin (10) and temperature sensor (11), temperature sensor (11) is affixed on battery module (6), heat pipe (9) connects semiconductor chilling plate (8) and radiating fin (10), battery management system (2) is connected with temperature sensor (11), battery management system (2) is connected with polarity reversing switch (3), polarity reversing switch (3) is connected with semiconductor chilling plate (8), it is characterized in that: battery management system (2) is according to the testing result of temperature sensor (11), control the switch of polarity reversing switch (3), and the both positive and negative polarity of polarity reversing switch (3).
2. heat management system according to claim 1, is characterized in that: described heat management system also comprises conducting strip (7), and described conducting strip (7) is arranged between semiconductor chilling plate (8) and battery module (6).
3. heat management system according to claim 1, is characterized in that: described heat management system also comprises thermal insulation layer (5), and described thermal insulation layer (5) separates battery module and radiating fin (10).
4. heat management system according to claim 1, is characterized in that: described heat management system also comprises thermovent (1), and in described thermovent (1), be provided with refrigeration unit is installed, refrigeration unit is wind cooling unit or liquid cooling unit.
5. heat management system according to claim 2, is characterized in that: described conducting strip (7) is to be made by Heat Conduction Material.
6. heat management system according to claim 3, is characterized in that: described thermal insulation layer (5) is to be made by heat-barrier material.
CN201320645507.3U 2013-10-21 2013-10-21 Battery box heat management system of electric automobile Expired - Lifetime CN203503757U (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
CN201320645507.3U CN203503757U (en) 2013-10-21 2013-10-21 Battery box heat management system of electric automobile

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CN203503757U true CN203503757U (en) 2014-03-26

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103531864A (en) * 2013-10-21 2014-01-22 三门峡速达交通节能科技股份有限公司 Battery box heat management system and method for electric automobile
CN107221729A (en) * 2017-07-10 2017-09-29 江苏英耐杰新能源有限公司 The heat management system and method for a kind of electrokinetic cell bag
CN110182099A (en) * 2019-06-10 2019-08-30 天津恒天新能源汽车研究院有限公司 A kind of automobile-used power battery charging control system of electronic logistics and its control method
WO2021129376A1 (en) * 2019-12-27 2021-07-01 深圳市南霸科技有限公司 Large-current mos drive control method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103531864A (en) * 2013-10-21 2014-01-22 三门峡速达交通节能科技股份有限公司 Battery box heat management system and method for electric automobile
CN107221729A (en) * 2017-07-10 2017-09-29 江苏英耐杰新能源有限公司 The heat management system and method for a kind of electrokinetic cell bag
CN110182099A (en) * 2019-06-10 2019-08-30 天津恒天新能源汽车研究院有限公司 A kind of automobile-used power battery charging control system of electronic logistics and its control method
WO2021129376A1 (en) * 2019-12-27 2021-07-01 深圳市南霸科技有限公司 Large-current mos drive control method

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