CN204857902U - Heat radiator for power battery package - Google Patents

Heat radiator for power battery package Download PDF

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Publication number
CN204857902U
CN204857902U CN201520669408.8U CN201520669408U CN204857902U CN 204857902 U CN204857902 U CN 204857902U CN 201520669408 U CN201520669408 U CN 201520669408U CN 204857902 U CN204857902 U CN 204857902U
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CN
China
Prior art keywords
temperature
battery modules
control unit
battery
battery module
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Expired - Fee Related
Application number
CN201520669408.8U
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Chinese (zh)
Inventor
詹天佑
赵云
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Beijing Twinkle Sm Ding Zhong Technology Co Ltd
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Beijing Twinkle Sm Ding Zhong Technology Co Ltd
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Priority to CN201520669408.8U priority Critical patent/CN204857902U/en
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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 discloses a heat radiator for power battery package, the battery package is including a plurality of battery module (1) that interconnect and the main control unit BMS (3), a serial communication port, battery module (1) on all be equipped with one radiator fan (2), simultaneously, every battery module (1) still corresponds and is equipped with temperature controller, this temperature controller includes: battery module the control unit BMU (4), PMW fan governor (5) and temperature sensor (6), battery module the control unit BMU (4) gathers the temperature signal of battery module (1) of temperature sensor (6) detection to pass through PMW fan governor (5) control radiator fan (2) according to this temperature signal and work, and then the temperature of control batteries module (1). Can control batteries in the package between the battery module difference in temperature, and the method that can the oneself carry out the temperature protection. The problem of because battery package temperature field, the flow field is inhomogeneous and the difference in temperature between the battery module that causes to influence the life -span of battery is solved.

Description

A kind of heat abstractor of electrokinetic cell bag
Technical field
This patent relates to electronic technology field, especially relates to a kind of heat abstractor of electrokinetic cell bag.
Background technology
Along with society is to the promotion of Green Travel and environmental protection concept, electric power is widely used as clean energy resource, maximum wherein especially with electric automobile application, certainly also can be applied to the field of other electrical thermal storage.Although its electrokinetic cell bag is by multiple battery modules in parallel or be in series, but the normally whole power brick of its heat radiation adopts single fan to dispel the heat, particularly for the irregular power brick of face shaping, power brick internal heat dissipation structures is complicated, and the heat dissipation path of each battery modules is different in size causes.Uneven owing to dispelling the heat, cause the temperature difference between battery modules comparatively large, affect life-span and the safety problem of battery.In addition, as battery modules control unit BMU and main control unit BMS (BATTERYMANAGEMENTSYSTEM, also claim battery management system) communicating interrupt time, main control unit BMS cannot accept the temperature information of each battery modules, cannot judge, cannot control radiator fan.Like this, be easy to cause battery to dispel the heat uneven, cause the battery temperature difference to strengthen, affect battery life.
Summary of the invention
The purpose of this utility model is to provide a kind of heat abstractor of electrokinetic cell bag, can to control in power brick the temperature difference between battery modules and oneself can carry out the method for temperature protection.Solve due to power brick temperature field, flow field is uneven and the temperature difference between the battery modules caused, thus affect the life-span of battery.
The purpose of this utility model is achieved through the following technical solutions:
A kind of heat abstractor of electrokinetic cell bag, described power brick comprises multiple battery modules 1 be connected to each other and main control unit BMS3, described battery modules 1 is equipped with a radiator fan 2, simultaneously, each battery modules 1 also correspondence is provided with temperature controller, and this temperature controller comprises:
Battery modules control unit BMU4, PMW fan governor 5 and temperature sensor 6;
Battery modules control unit BMU4 is electrically connected with PMW fan governor 5 and temperature sensor 6 respectively, and PMW fan governor 5 is electrically connected with radiator fan 2;
The temperature signal of battery modules 1 that battery modules control unit BMU4 collecting temperature transducer 6 detects, and control radiator fan 2 according to this temperature signal by PMW fan governor 5 and work, and then control the temperature of battery modules 1.
Described main control unit BMS3 is electrically connected with multiple battery modules control unit BMU4, and controls the temperature of multiple battery modules 1.
Described battery modules 1 comprises multiple battery cell 7.
Described temperature sensor 6 comprises NTC temperature sensor, K type temperature sensor.
The technical scheme provided as can be seen from above-mentioned the utility model, the heat abstractor of the electrokinetic cell bag that the utility model embodiment provides, can to control in power brick the temperature difference between battery modules and oneself can carry out the method for temperature protection.Solve due to power brick temperature field, flow field is uneven and the temperature difference between the battery modules caused, thus affect the problem in the life-span of battery.Meanwhile, each battery modules 1 or manage independently, even if with main control unit BMS3 communication interruption, still oneself can carry out temperature protection.Effectively can maintain the temperature difference in different battery modules 1 region within controllable scope.Battery modules control unit BMU4 can set preset value, also can be given an order by BMS and carry out group control, convenient management.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme of the utility model embodiment, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawings can also be obtained according to these accompanying drawings.
The structural representation one of the heat abstractor of the electrokinetic cell bag that Fig. 1 provides for the utility model embodiment;
The structural representation two of the heat abstractor of the electrokinetic cell bag that Fig. 2 provides for the utility model embodiment.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on embodiment of the present utility model, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to protection range of the present utility model.
Below in conjunction with accompanying drawing, the utility model embodiment is described in further detail.
Embodiment one
As shown in Figures 1 and 2, a kind of heat abstractor of electrokinetic cell bag, described power brick comprises multiple battery modules 1 (1a in figure be connected to each other, 1b, to 1h) and main control unit BMS3,8 are had in battery modules 1 figure, in example as required, unlimited, main control unit i.e. battery management system are known technology, described battery modules 1 are equipped with a radiator fan 2 (2a in figure, 2b, to 2h), there are 8 in figure, identical with battery modules 1 quantity as required in example.Can be applicable to erose power brick.Can carry out the design of standardized battery modules 1, the power brick being convenient to different capabilities carries out into group configuration, and battery modules 1 parts do not need die sinking again simultaneously; Can reduce and design and develop and manufacturing cost.
Meanwhile, each battery modules 1 also correspondence is provided with temperature controller, and this temperature controller comprises:
Battery modules control unit BMU4, PMW fan governor 5 and temperature sensor 6; PMW is the abbreviation of chopper speed control; PMW fan governor 5 is control technologys of current main flow; belong to known control technology; what the utility model was protected is have employed PMW fan governor 5 to carry out independent control; do not protect the implementation of concrete control technology, fan governor 5 controls the rotating speed of radiator fan 2 by the mode of chopper speed control.BMU is the abbreviation of battery modules control unit, is also known control technology.Battery modules control unit BMU4, except having acquisition function, also has computational analysis function, according to battery modules 1 temperature information received, can control the radiator fan 2 of battery modules.
Battery modules control unit BMU4 is electrically connected with PMW fan governor 5 and temperature sensor 6 respectively, and PMW fan governor 5 is electrically connected with radiator fan 2;
The temperature signal of the battery modules 1 that battery modules control unit BMU4 collecting temperature transducer 6 detects, and control radiator fan 2 according to this temperature signal by PMW fan governor 5 and work, along wind direction, battery modules 1 is dried, and then control the temperature of battery modules 1.
Meanwhile, in this example, described main control unit BMS3 is electrically connected with multiple battery modules control unit BMU4, and controls the temperature of multiple battery modules 1.
In addition, described battery modules 1 comprises multiple battery cell 7.Multiple battery cell 7 can be in parallel or be connected in series.
Further, described temperature sensor 6 comprises NTC temperature sensor, K type temperature sensor.
NTC temperature sensor, NTC (NikeTrainingClub thermistor), a kind of thermistor, the probe (temperature sensor of metal-back or plastic casing etc., prolongation lead-in wire and metal terminal or even end-apparatus composition.Utilize NTC thermistor under certain measurement power, resistance value rises and this characteristic that declines rapidly along with temperature, NTC thermistor can be determined corresponding temperature by measuring its resistance value, thus reach the object of detection and control temperature.
K type temperature sensor, English name: Ktypethermocouplethermometer, also claims thermocouple thermometer, is the temperature instrumentation based on thermoelectric effect.Its measuring range is wide, and structure is simple, easy to use, and thermometric accurately and reliably, is convenient to the teletransmission of signal, automatically record and centralized control, is thus applied very general in industrial production and scientific research field.
Operation principle, the namely heat dissipating method of electrokinetic cell bag, based on above-mentioned device, described method comprises:
When the communication of battery modules control unit BMU4 and main control unit BMS3 is normal, battery modules control unit BMU4 gathers the temperature of battery modules 1, send main control unit BMS3 to, main control unit BMS3 assigns heat radiation instruction, controls radiator fan 2; Control the open and close of radiator fan 2, and control its rotating speed.
When the communicating interrupt of battery modules control unit BMU4 and main control unit BMS3, battery modules control unit BMU4 direct basis gather battery modules 1 the radiator fan 2 of temperature to single battery module 1 control, control the open and close of radiator fan 2, and control its rotating speed, thus control the temperature of multiple battery modules 1.Each battery modules 1 or manage independently, though with main control unit BMS3 communication interruption, still oneself can carry out temperature protection.
Simultaneously, when the communicating interrupt of battery modules control unit BMU4 and main control unit BMS3, the concrete control mode of battery modules control unit BMU4 comprises, according to the temperature-controlled conditions preset, compare with battery modules 1 temperature information collected, respectively the radiator fan 2 of this battery modules 1 correspondence is controlled.The temperature-controlled conditions temperature control mode that this presets also is the technology of temperature control known, and inventive point of the present utility model is to control the radiator fan 2 of this battery modules 1 correspondence respectively.As when part battery modules 1 temperature in multiple battery modules 1 is higher, the radiator fan 2 of battery modules control unit BMU4 to part battery modules 1 correspondence of this part battery modules 1 carries out speed regulating control, thus controls the temperature of this part battery modules 1.Effectively can maintain the temperature difference in different battery modules 1 region within controllable scope.Battery modules control unit BMU4 can set preset value, also can be given an order by BMS and carry out group control, convenient management.
The above; be only the utility model preferably embodiment; but protection range of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the change that can expect easily or replacement, all should be encompassed within protection range of the present utility model.Therefore, protection range of the present utility model should be as the criterion with the protection range of claims.

Claims (4)

1. the heat abstractor of an electrokinetic cell bag, described power brick comprises multiple battery modules (1) be connected to each other and main control unit BMS (3), it is characterized in that, described battery modules (1) is equipped with a radiator fan (2), simultaneously, each battery modules (1) also correspondence is provided with temperature controller, and this temperature controller comprises:
Battery modules control unit BMU (4), PMW fan governor (5) and temperature sensor (6);
Battery modules control unit BMU (4) is electrically connected with PMW fan governor (5) and temperature sensor (6) respectively, and PMW fan governor (5) is electrically connected with radiator fan (2);
The temperature signal of the battery modules (1) that battery modules control unit BMU (4) collecting temperature transducer (6) detects, and control radiator fan (2) work according to this temperature signal by PMW fan governor (5), and then control the temperature of battery modules (1).
2. the heat abstractor of electrokinetic cell bag according to claim 1 and method, it is characterized in that, described main control unit BMS (3) is electrically connected with multiple battery modules control unit BMU (4), and controls the temperature of multiple battery modules (1).
3. the heat abstractor of electrokinetic cell bag according to claim 1 and 2 and method, it is characterized in that, described battery modules (1) comprises multiple battery cell (7).
4. the heat abstractor of electrokinetic cell bag according to claim 1 and 2 and method, it is characterized in that, described temperature sensor (6) comprises NTC temperature sensor, K type temperature sensor.
CN201520669408.8U 2015-08-31 2015-08-31 Heat radiator for power battery package Expired - Fee Related CN204857902U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520669408.8U CN204857902U (en) 2015-08-31 2015-08-31 Heat radiator for power battery package

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Application Number Priority Date Filing Date Title
CN201520669408.8U CN204857902U (en) 2015-08-31 2015-08-31 Heat radiator for power battery package

Publications (1)

Publication Number Publication Date
CN204857902U true CN204857902U (en) 2015-12-09

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105070975A (en) * 2015-08-31 2015-11-18 北京闪信鼎中技术有限公司 Heat dissipation device and method for power battery pack

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105070975A (en) * 2015-08-31 2015-11-18 北京闪信鼎中技术有限公司 Heat dissipation device and method for power battery pack

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CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20151209

Termination date: 20200831