CN110534840A - Battery modules and battery heat change method - Google Patents

Battery modules and battery heat change method Download PDF

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Publication number
CN110534840A
CN110534840A CN201910766069.8A CN201910766069A CN110534840A CN 110534840 A CN110534840 A CN 110534840A CN 201910766069 A CN201910766069 A CN 201910766069A CN 110534840 A CN110534840 A CN 110534840A
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CN
China
Prior art keywords
heat
exchange
battery
air
current temperatures
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Granted
Application number
CN201910766069.8A
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Chinese (zh)
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CN110534840B (en
Inventor
周见军
谭健
贾术
杨超
刘艳
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Sunwoda Electronic Co Ltd
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Sunwoda Electronic Co Ltd
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Classifications

    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/60Heating or cooling; Temperature control
    • H01M10/61Types of temperature control
    • H01M10/613Cooling or keeping cold
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/60Heating or cooling; Temperature control
    • H01M10/61Types of temperature control
    • H01M10/615Heating or keeping warm
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/60Heating or cooling; Temperature control
    • H01M10/62Heating or cooling; Temperature control specially adapted for specific applications
    • H01M10/625Vehicles
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/60Heating or cooling; Temperature control
    • H01M10/63Control systems
    • H01M10/633Control systems characterised by algorithms, flow charts, software details or the like
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/60Heating or cooling; Temperature control
    • H01M10/63Control systems
    • H01M10/637Control systems characterised by the use of reversible temperature-sensitive devices, e.g. NTC, PTC or bimetal devices; characterised by control of the internal current flowing through the cells, e.g. by switching
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/60Heating or cooling; Temperature control
    • H01M10/64Heating or cooling; Temperature control characterised by the shape of the cells
    • H01M10/647Prismatic or flat cells, e.g. pouch cells
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/60Heating or cooling; Temperature control
    • H01M10/65Means for temperature control structurally associated with the cells
    • H01M10/655Solid structures for heat exchange or heat conduction
    • H01M10/6551Surfaces specially adapted for heat dissipation or radiation, e.g. fins or coatings
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/60Heating or cooling; Temperature control
    • H01M10/65Means for temperature control structurally associated with the cells
    • H01M10/655Solid structures for heat exchange or heat conduction
    • H01M10/6554Rods or plates
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/60Heating or cooling; Temperature control
    • H01M10/65Means for temperature control structurally associated with the cells
    • H01M10/655Solid structures for heat exchange or heat conduction
    • H01M10/6556Solid parts with flow channel passages or pipes for heat exchange
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/60Heating or cooling; Temperature control
    • H01M10/65Means for temperature control structurally associated with the cells
    • H01M10/656Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
    • H01M10/6561Gases
    • H01M10/6563Gases with forced flow, e.g. by blowers
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/60Heating or cooling; Temperature control
    • H01M10/65Means for temperature control structurally associated with the cells
    • H01M10/656Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
    • H01M10/6567Liquids
    • H01M10/6568Liquids characterised by flow circuits, e.g. loops, located externally to the cells or cell casings
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/60Heating or cooling; Temperature control
    • H01M10/66Heat-exchange relationships between the cells and other systems, e.g. central heating systems or fuel cells
    • H01M10/663Heat-exchange relationships between the cells and other systems, e.g. central heating systems or fuel cells the system being an air-conditioner or an engine
    • 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

Present invention discloses a kind of battery modules and battery heat change methods, and wherein battery modules include battery pack, the first heat-exchange device, the second heat-exchange device and control unit;First heat-exchange device includes flowing through for medium to carry out the replacement part of heat exchange, and replacement part fits over the battery electrode column in battery pack;Second heat-exchange device includes cabinet, and battery pack is placed in the inside of cabinet, and the side of cabinet is provided with air inlet, and the other side of cabinet is provided with air outlet;Control unit is set to cabinet exterior, and control replacement part carries out heat exchange respectively, and control air inlet carries out air inlet and the outlet mouth and carries out outlet air, by the way that battery pack is formed battery modules in conjunction with the second heat-exchange device that the first heat-exchange device of liquid/phase transformation heat exchange and wind-heat exchange, can simultaneously or single the two heat-exchange devices of starting, not only heat exchanger effectiveness improvement effect increases, and cost saved the energy.

Description

Battery modules and battery heat change method
Technical field
The present invention relates to the technical fields of battery, especially relate to battery modules and battery heat change method.
Background technique
With the fast development of new-energy automobile, the market demand for being widely used in the power battery in automobile is continuous therewith Increase.However, power battery be to temperature it is very sensitive, under the conditions of inappropriate temperature, can be damaged to battery, increase Battery side reaction generating ability results even in thermal runaway, causes great peace so that battery performance reduces and life time decay Full blast danger.As under cryogenic, in the case where particularly less than 0 DEG C, lithium branch gold, thorn can be formed in anode surface to battery charging Broken diaphragm causes internal short-circuit, may explosion generation on fire when situation is serious;Under the high temperature conditions, when being higher than 35 DEG C such as temperature, Increase battery active material and electrolyte side reaction ability, causes inner pressure of battery to increase too fast, influence its cycle life and safety Performance.
Currently, battery modules are mainly by battery thermal management system come regulating cell operating temperature.In the prior art, battery Thermal management scheme is broadly divided into: wind-heat exchange, liquid heat exchange, phase transformation heat exchange.And existing wind-heat exchange, liquid heat exchange and phase In heating exchange scheme, heat exchange is mainly carried out to battery modules by U-shaped channel in battery modules.Such heat exchange side On the one hand case makes mould group U-shaped Temperature Distribution occur, mould group intermediate cell temperature is caused to be higher than two sides, and heat exchange effect is bad; On the other hand since battery core self structure is unevenly distributed battery temperature, surface is coated by insulating film, shell and core Between across a tunic so that high-temperature region is distributed on positive and negative terminals, middle warm area is distributed in inside core, and low-temperature space is distributed in volume Core surrounding and lower section, low efficiency causes at high cost if carrying out heat exchange by above-mentioned heat exchange method, and not can guarantee mould Single battery bulk temperature is uniform in group.
Summary of the invention
The main object of the present invention is to provide a kind of battery modules and battery heat change method, it is intended to solve existing battery mould The bad technical problem of group heat exchange effect.
Based on foregoing invention purpose, the present invention proposes a kind of battery modules, including battery pack, the first heat-exchange device, Two heat-exchange devices and control unit;
First heat-exchange device includes being flowed through for medium to carry out the replacement part of heat exchange, the replacement part It fits in the battery electrode column of the battery pack;
Second heat-exchange device includes cabinet, and the battery pack is placed in the inside of the cabinet, the cabinet Side is provided with air inlet, and the other side of the cabinet is provided with air outlet;
Described control unit is set to the cabinet exterior, and controls the replacement part respectively and carry out heat exchange, and It controls the air inlet and carries out air inlet and air outlet progress outlet air.
Further, the replacement part includes power board, the first import and first outlet, the inside of the power board It is provided with channel, first import and first outlet are respectively arranged at the both ends that the channel is contacted with the external world.
Further, the channel is sequentially connected by multiple S-shaped pipelines and is constituted.
Further, the replacement part further includes insulating heat-conductive plate, and the battery electrode column of the battery pack passes through connection sheet It is attached, so that the battery pack forms electrical connection, the insulating heat-conductive plate is fitted in the connection sheet, the exchange Plate is fitted in the insulating heat-conductive plate.
Further, the connection sheet is in long strip, in the cross in the connection sheet between the battery and battery The cross section in section, the position than connecting in the connection sheet with the battery is small.
Further, second heat-exchange device further includes the isolation board of multiple correspondences battery number, Mei Yisuo The side that isolation board is fixedly installed on a battery is stated, and is placed between battery described in every two.
Further, including multiple temperature sensors, humidity sensor, solenoid valve;
Described control unit is electrically connected in the temperature sensor, humidity sensor and solenoid valve;
The temperature sensor be respectively arranged at first import and the air inlet side wall and the battery pack Side, be respectively used to detect the temperature of the temperature of the medium, the temperature of the input box house wind and the battery;
The humidity sensor is set to the air inlet, for detecting the humidity for inputting the box house wind;
The solenoid valve is set to first import and air inlet, be respectively used to limit the flow velocity of the medium and Input the wind speed of the box house wind.
The present invention also provides a kind of heat change methods, applied in above-mentioned battery modules, comprising:
Obtain the Current Temperatures of the battery pack;
Judge whether the Current Temperatures are in preset normal temperature range;
If it is not, then corresponding heat-exchange device is opened by preset rules according to the Current Temperatures, by the current temperature Degree is adjusted to the normal temperature range, and the heat-exchange device includes that first heat-exchange device and second heat are handed over Changing device.
Further, the air inlet and air conditioning air exhaust mouth are connected, described to be opened according to the Current Temperatures by preset rules The step of opening corresponding heat-exchange device, the Current Temperatures adjusted to the normal temperature range, comprising:
Judge whether the Current Temperatures are in specified range, the specified range is higher than the normal temperature range Overheat range, or supercooling range more lower than the normal temperature range;
If the Current Temperatures are in the specified range, start the second heat exchange dress when air-conditioning has turned on It sets, starts first heat-exchange device when air-conditioning is not opened;
If the Current Temperatures are not at the specified range, first heat-exchange device is opened, while in air-conditioning Start the second heat-exchange device when having turned on.
Further, described the step of starting second heat-exchange device when air-conditioning has turned on, comprising:
Detection by the air-conditioning convey Lai wind air temperature and wind moisture;
The air temperature and the Current Temperatures are compared, and wind moisture and preset threshold are compared;
When the Current Temperatures are in overheat range, the air temperature is lower than the Current Temperatures, and the wind moisture Lower than preset threshold, then start second heat-exchange device;
When the Current Temperatures are in supercooling range, the air temperature is warmmer than the Current Temperatures, and the wind moisture Lower than preset threshold, then start second heat-exchange device.
Battery modules provided by the invention and battery heat change method, by by battery pack and liquid/phase transformation heat exchange First heat-exchange device and wind-heat exchange the second heat-exchange device combine forms battery modules, can simultaneously or it is single starting this Two heat-exchange devices, not only heat exchanger effectiveness improvement effect increases, and cost saved the energy, also improves battery thermal The reliability of reason system.
Detailed description of the invention
Fig. 1 is the explosive view of battery modules in one embodiment of the invention;
Fig. 2 is the explosive view of battery modules in another embodiment of the present invention;
Fig. 3 is the method and step schematic diagram of battery heat change method in one embodiment of the invention.
The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation description.Obviously, described embodiment is only a part of the embodiments of the present invention, instead of all the embodiments.Base Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts it is all its His embodiment, shall fall within the protection scope of the present invention.
It is to be appreciated that the directional instruction (such as up, down, left, right, before and after ...) of institute is only used in the embodiment of the present invention In explaining in relative positional relationship, the motion conditions etc. under a certain particular pose (as shown in the picture) between each component, if should When particular pose changes, then directionality instruction also correspondingly changes correspondingly.
In addition, the description for being related to " first ", " second " etc. in the present invention is used for description purposes only, and should not be understood as referring to Show or imply its relative importance or implicitly indicates the quantity of indicated technical characteristic." first ", " are defined as a result, Two " feature can explicitly or implicitly include at least one of the features.In addition, the technical solution between each embodiment can It to be combined with each other, but must be based on can be realized by those of ordinary skill in the art, when the combination of technical solution occurs Conflicting or cannot achieve when, will be understood that the combination of this technical solution is not present, also not the present invention claims protection model Within enclosing.
It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not intended to limit the present invention.
Referring to Fig.1-2, battery modules provided by the invention, including battery pack, the first heat-exchange device, the second switch And control unit, wherein battery pack is made of multiple batteries 100, and each battery 100 is connected in series.
First heat-exchange device is liquid/phase transformation heat-exchange device, which includes flowing through for medium to carry out heat exchange Replacement part.Specifically, multiple batteries 100 are arranged side by side in the same direction constitutes above-mentioned battery pack, i.e., each battery 100 Battery electrode column 110 is directed towards the same side, so that battery pack formation is electrically connected in series, above-mentioned replacement part is fitted in battery On pole 110, and what is contacted with battery electrode column 110 is made of insulating material on one side.According to the battery temperature regularity of distribution and electricity For 100 all parts power of pond it is found that when battery 100 works, high-temperature area is distributed in the positive and negative anodes of battery 100, and battery electrode column 110 With high heat transfer ability, the present invention is by the replacement part in the setting fitting of battery electrode column 110, to pass through replacement part Heat exchange is carried out with battery electrode column 110, the position of replacement part is targetedly set, so that heat exchange obtains maximizing benefit With.And heat exchange is carried out by battery electrode column 110, heat conduction efficiency can be increased, while the area of replacement part can be reduced, drop one Determine cost.
Above-mentioned second heat-exchange device is wind-heat switch, including cabinet 400, battery pack are placed on the interior of cabinet 400 Portion, the side of cabinet 400 are provided with for the air inlet 410 to input wind inside cabinet 400, the other side setting of cabinet 400 There is the air outlet 420 for the wind inside cabinet 400 to be discharged.Wherein, air inlet 410 can connect air-conditioning exhaust outlet or other The device of wind is conveyed, the present invention is not restricted the source of wind.Specifically, air inlet 410 and air outlet 420 are set to cabinet 400 two sides mutually deviated from, and the upper end of the side wall of cabinet 400 is arranged in air inlet 410, air outlet 420 is arranged in cabinet 400 Side wall lower end so that wind is fully mobile from one end inside cabinet 400 to the other end, so that wind-heat exchange is more filled Point, it is preferable that air inlet 410 is provided with air inlet pipe, and air outlet 420 is provided with escape pipe, and wherein air inlet pipe can be connected to air-conditioning Exhaust pipe.
Above-mentioned control unit is set to the outer wall of cabinet 400, which can be battery thermal management in the prior art Chip in system, the heat exchange for controlling battery pack work, and specifically control replacement part carries out heat exchange, Yi Ji respectively 410 air inlet and the outlet mouth of air inlet, 420 outlet air of two heat-exchange devices.
In the present invention, battery thermal management system is realized based on above-mentioned battery modules, by filling battery pack, the first heat exchange Set and the second heat-exchange device combine and forms above-mentioned battery modules, can simultaneously or the above-mentioned two heat-exchange device of single starting, Greatly increase the reliability of battery thermal management system.
In one embodiment, replacement part includes power board 310, the first import 330 and first outlet 340, exchange Plate 310 is internally provided with channel, and medium flows through the channel to carry out heat exchange with battery electrode column 110, the first import 330 and First outlet 340 is respectively arranged at the both ends that channel is contacted with the external world, and the first import 330 is set to power board in the present embodiment 310 one end, first outlet 340 are set to the opposite another top of power board 310, and above-mentioned medium can be water or water glycol Mixture.
In one embodiment, the channel inside above-mentioned power board 310 is sequentially connected by multiple S-shaped pipelines, excellent Choosing is to fold arrangement by multiple S shape pipe levels to constitute, so that medium uniformly flows through each position of power board 310, is guaranteed entire 310 temperature of power board is consistent, keeps heat exchange effect more preferable.
In one embodiment, in order to preferably radiate and prevent battery pack occur external short circuit risk, above-mentioned exchange part Part includes insulating heat-conductive plate 320, and each battery electrode column 110 in battery pack is connected by connection sheet 200, and then forms above-mentioned series connection Connection, insulating heat-conductive plate 320 are fitted in connection sheet 200, and the two can be fixed by heat-conducting glue or buckle, the insulating heat-conductive plate 320 have efficient capacity of heat transmission, such as by metal oxide Al2O3, ZnO, NiO, metal nitride AlN, Si3N4, BN, nothing The packing materials such as machine object silica, then be mixed with high molecular material, thermal coefficient range is 0.8~100W/mK.
In the present embodiment, above-mentioned battery electrode column 110 is connected to positive and negative anodes collector (specially copper foil and aluminium foil), and copper is thermally conductive Coefficient about 401W/mK, aluminium thermal coefficient about 237W/mK have high thermal coefficient, can rapidly and efficiently conduct heat;Connection sheet 200 by Aluminium is made, and is fixed on 100 pole of battery, 110 top by Laser Welding, has conductive capability, further increase battery electrode column 110 heat dissipation areas, to reach High Efficiency Thermal switching purpose.
Preferably, insulating heat-conductive plate 320 has and is adapted to the concave-convex surface of connection sheet 200 close to 200 one side of connection sheet It is raised or sunken so that combining closely both when insulating heat-conductive plate 320 is covered in connection sheet 200, come into full contact with, enhancing jail Increasing contact area while solidity improves heat transfer;320 another side of insulating heat-conductive plate is adapted to fitting with power board 310, i.e., The same concave-convex adaptation in the surface of the two contact is combined closely, so that the two comes into full contact with, the thickness range of insulating heat-conductive plate 320 can For 2-10mm.
Preferably, insulating heat-conductive plate 320 is detachably connected with power board 310, can also be integrated with power board 310 fixed Connection.When being made, when battery size is smaller or heat production is smaller, the width of insulating heat-conductive plate 320 and power board 310 can be reduced, And then reduce volume and corresponding cost;When battery size is larger or heat production is big, it can suitably increase by 320 He of insulating heat-conductive plate The width of power board 310, and then increase its contact area, so that more efficient carry out heat exchange, meets the normal work of battery 100 Make.
In one embodiment, there are two the above-mentioned tools of connection sheet 200, and it is in long strip, and the side along battery 100 side by side To the battery electrode column 110 for being connected to each battery 100, such as along battery 100, direction is connected to each battery to a connection sheet 200 side by side 100 anode, along battery 100, direction is connected to the cathode of each battery 100 to another connection sheet 200 side by side, the connection sheet 200 by Sheet metal is constituted, and with a thickness of 2-8mm, the position of 200 connecting post 110 of connection sheet is provided with round or rectangular through-hole, is used for Pole 110 positions, and connection sheet 200 can be welded by the through-hole and pole 110.Between battery 100 and battery 100, connection sheet 200 cross section is smaller than connection sheet 200 and the cross section of 100 link position of battery, such as is located at battery 100 in connection sheet 200 The U-shaped shape between battery 100, so that the connection sheet 200 of the position is easy to bending, when battery 100 is arranged side by side, At this moment the case where there may be 110 top of battery electrode column and being centainly in same plane can make two by turning down connection sheet 200 Person is fitted and connected.Further, there are two insulating heat-conductive plate 320 and power board 310 are also correspondingly arranged, two connections are respectively corresponded Piece 200, to guarantee high heat transfer.
In one embodiment, above-mentioned cabinet 400 is rectangular-shape, inside be layer structure, and be arranged on bottom One layer of backing board 600, backing board 600 are formed from steel, and 600 upper layer of backing board covers one layer of insulation silica gel plate, thickness range 3- 10mm, the backing board 600 are flowed apart from 400 bottom 2-5mm of cabinet for air, and backing board 600 has the corresponding number of battery 100 The fixation hole of amount, the bottom adaptation of battery 100 is in fixation hole, it is preferable that above-mentioned backing board 600 can be integrated with cabinet 400 Molding, so that the two is relatively more firm.
In one embodiment, in order to further fix battery 100, above-mentioned second heat-exchange device further includes multiple correspondences 100, battery several isolation boards 500, each isolation board 500 are fixedly installed on the side of a battery 100, and are placed in every two electricity Between pond 100, such as 100 surface of battery is attached to by 500 gluing of isolation board, 500 lower end of isolation board is fixedly connected with backing board 600, there is certain distance at the top of upper end and cabinet 400, pass through for cold/warm wind, to guarantee to have among battery 100 enough The volume that circulates guarantees each battery 100 work under the uniform environment of temperature so that each battery 100 surrounds in cold/warm wind Make, which can be prepared by high molecular material, such as phenolic resin, polystyrene, and thickness range can be 1-5mm, Size dimension can determine that width range can be 2-10mm according to 100 length, width and height of actual battery.
In one embodiment, above-mentioned battery modules further include multiple temperature sensors, humidity sensor and solenoid valve; Specifically, above-mentioned control unit is electrically connected in temperature sensor, humidity sensor and solenoid valve, temperature sensor point It is not set to the first import 330, the side wall of air inlet 410 and the side of battery pack, is respectively used to detection and flows through the first import The temperature of 330 medium flows through the temperature for inputting 400 inside wind of cabinet of air inlet 410 and the temperature of battery 100;Humidity Sensor is set to the position of air inlet 410, for detecting the humidity of input 400 inside wind of cabinet;Solenoid valve is set to first The position of import 330 and air inlet 410 is respectively used in the first import 330 of limitation in the flow velocity and air inlet 410 of medium The wind speed of 400 inside wind of cabinet is inputted, specifically, different control electromagnetic valve works of the control unit according to battery temperature, with Keep the wind speed entered in cabinet 400 different, or flow through power board 310 flow velocity it is different, such as when battery temperature range be in than When normal temperature is slightly higher, controllable solenoid valve make wind speed reduce or flow velocity reduce;Or according to battery temperature lifting with The relationship of time controls electromagnetic valve work in different battery temperatures and different periods to change wind speed or flow velocity, so that heat is handed over Change rate it is maximum on the basis of it is most energy saving.
Preferably, the wind that the air inlet 410 of above-mentioned second heat-exchange device inputs, can be used in air conditioning air exhaust mouth or automobile Air-conditioning cold/warm wind that portion excludes, one air dryer of installation prevents moisture for absorbing the moisture in wind at air inlet 410 Into inside cabinet 400, prevent hardware be corroded and prevent battery 100 occur external short circuit, the air dryer with into To be detachably connected between the air inlet pipe in air port 410, it is conveniently replaceable.
When battery heat-exchange system works, control unit monitors 100 He of battery by humidity sensor and temperature inductor Heat management system working condition, while by output signal, solenoid valve is controlled, to change the flow of heat exchange medium.Specifically For, after battery 100 starts work, temperature inductor acquisition 100 temperature signal of battery being mounted in battery pack is transferred to Whether control unit, control unit analyze temperature signal in real time, judge the temperature value of battery pack preset reasonable In range, if so, without opening heat-exchange device, if it is not, then opening the first heat-exchange device or/and the according to preset rules Two heat-exchange devices, such as when 100 temperature of battery is lower, heat exchange is carried out using the second air-cooled heat-exchange device, in electricity When 100 temperature of pond is higher, heat exchange is carried out using the first heat-exchange device of liquid cooling, when the preset work of 100 temperature departure of battery Make temperature it is larger when, the first heat-exchange device and the second heat-exchange device can be started simultaneously and carry out heat exchange.
In one embodiment, above-mentioned battery pack has multiple, i.e., corresponding battery modules also have multiple, multiple battery moulds Group carries out control management, the control list of total thermal management control unit and above-mentioned each battery modules by total thermal management control unit Member connection, works for coordinating each battery modules under proper environment, to guarantee the homogeneity of each battery pack.
Wherein, the principle for carrying out the second heat-exchange device of air-cooled heat exchange is: heat is passed through absolutely again by battery aluminum shell Velum transmitting, then heat exchange is carried out with wind, to reach cooling or temperature rise effect.
Carry out the first heat exchange principle of liquid/phase transformation heat exchange be: the heat of battery 100 mainly pass through collector using Pole 110 and connection sheet 200, then heat transfer are then conducted to power board 310 to insulating heat-conductive plate 320, finally by medium into Row heat exchange reaches cooling or thermogenic action.
Referring to Fig. 3, the present invention also provides a kind of battery heat change method, which passes through above-mentioned battery The realization of mould group, specifically, above-mentioned battery heat change method, comprising:
Step S1: the Current Temperatures of the battery pack are obtained;
Step S2: judge whether the Current Temperatures are in preset normal temperature range;
Step S3: if it is not, corresponding heat-exchange device then is opened by preset rules according to the Current Temperatures, it will be described Current Temperatures are adjusted to the normal temperature range, and the heat-exchange device includes first heat-exchange device and the second heat Switch.
As described in above-mentioned steps S1-S2, when battery 100 is started to work, control unit sends a signal to the temperature of battery pack Inductor is spent, so that temperature inductor is obtained the Current Temperatures of battery pack, and the Current Temperatures are sent to control unit, control is single After member gets Current Temperatures, judge whether the Current Temperatures are in preset normal temperature range, normal temperature model herein Enclosing can be arranged according to the actual conditions that battery 100 can work normally, such as temperature range is 20~30 DEG C, if Current Temperatures are in The normal temperature range shows that battery 100 is in normal working environment, without carrying out heat exchange.
As described in above-mentioned steps S3, if Current Temperatures are not at normal temperature range, i.e. Current Temperatures may excessively high or mistake Low, then control unit can open corresponding heat-exchange device by preset rules according to Current Temperatures, that is, open above-mentioned first heat and hand over Changing device or/and above-mentioned second heat-exchange device, so that Current Temperatures adjustment falls on normal temperature range.
In one embodiment, above-mentioned 410 air conditioning air exhaust mouth of air inlet is connected, i.e., above-mentioned second heat-exchange device is from air inlet The wind of 410 input of mouth are the wind of air-conditioning discharge, then above-mentioned steps S3, comprising:
Step S31: judging whether the Current Temperatures are in specified range, and the specified range is than the normal temperature The higher overheat range of range, or supercooling range more lower than the normal temperature range;
Step S32: if the Current Temperatures are in the specified range, start second heat when air-conditioning has turned on Switch starts first heat-exchange device when air-conditioning is not opened;
Step S33: if the Current Temperatures are not at the specified range, first heat-exchange device is opened, together When start the second heat-exchange device when air-conditioning has turned on.
As described in above-mentioned steps S31, control unit first first determines whether Current Temperatures are in specified range, this is specified Range is the overheat range than normal temperature range somewhat higher, or the supercooling range more slightly lower than normal temperature range, Such as normal temperature range is 20~30 DEG C, then overheat range is 30~45 DEG C, and supercooling range is 0~20 DEG C.
As described in above-mentioned steps S32, if Current Temperatures are in above-mentioned specified range, whether control unit first judges air-conditioning It opens, need to know that control unit is connect with air-conditioning system, open signal can be sent to control unit when the air conditioning is turned on, if Air-conditioning open, then be actuated for wind-heat exchange the second heat-exchange device, further, can by control battery valve come adjust into Enter the rate inside cabinet 400, so that adjusting module temperature reaches reasonable operation interval;If air-conditioning is closed state, open It is dynamic to carry out the first heat-exchange device of liquid/phase transformation, while exchange rate can also be adjusted by control battery valve, to adjust Module temperature reaches reasonable operation interval, is can guarantee in this way when air-conditioning breaks down, and starts liquid/phase transformation heat exchange method to replace For its effect, its reliability is promoted.
As described in above-mentioned steps S33, if it is determined that Current Temperatures are not at specified range namely Current Temperatures deviate normal occlusion Manage operating temperature range farther out, such as at this moment Current Temperatures can first judge whether air-conditioning is opened lower than 0 DEG C or higher than 45 DEG C, if It opens, then opens the first heat-exchange device and the second heat-exchange device, common co-ordination simultaneously, reach high-efficiency energy-saving heat friendship It changes, or when air-conditioning is not turned on, only opens the first heat-exchange device and work.
In another embodiment, if air-conditioning is not turned on, air-conditioning can be first opened, is then turned on the second heat-exchange device, or The equipment that other conveying wind are arranged starts the equipment when air-conditioning is not turned on, and is then then turned on the second heat-exchange device.
In the present embodiment, when Current Temperatures are in 0-20 DEG C or 30-45 DEG C of temperature range, it is preferentially actuated for wind-heat friendship The second heat-exchange device changed, air-conditioner wind reaches module internal by drier and solenoid valve and carries out heat exchange, to reduce electricity 100 operating temperature of pond, it is more preferable to improve 100 cycle performance of battery and security performance, and wind inlet can be controlled by solenoid valve, Wind inlet can be adjusted according to temperature level, when air-conditioning does not start, and the second heat-exchange device does not work, can be started The work of one heat-exchange device;If Current Temperatures are greater than 45 DEG C or are lower than 0 DEG C, the first heat-exchange device unlatching work, according to temperature Size, can be by electromagnetism valve regulation heat-exchange medium inlet, to guarantee that battery 100 works in reasonable environment temperature, together When the second heat-exchange device also can star.
In addition when the second heat-exchange device breaks down, the first heat-exchange device can be individually enabled, or in the first heat When switch breaks down, the second heat-exchange device is individually enabled, guarantees the normal work of battery heat-exchange system in this way, into One step increases battery heat-exchange system reliability.And the wind regime of wind-heat exchange is carried out in battery heat-exchange system as air conditioning for automobiles row Cold/warm wind out, waste cold/warm wind is recycled, can reach energy-conserving action;The present invention can meet power electric automobile and exist It is safe and reliable under Different climate or operating condition, so that battery heat-exchange system work more efficient low-consume.
In one embodiment, in above-mentioned steps S32 or/and step S33, start the second heat exchange when air-conditioning has turned on The step of device, comprising:
Step S41: detection by the air-conditioning convey Lai wind air temperature and wind moisture;
Step S42: the air temperature and the Current Temperatures are compared, and wind moisture and preset threshold are compared;
Step S43: when the Current Temperatures are in overheat range, the air temperature is lower than the Current Temperatures, and institute Wind moisture is stated lower than preset threshold, then starts second heat-exchange device;
Step S44: when the Current Temperatures are in supercooling range, the air temperature is warmmer than the Current Temperatures, and institute Wind moisture is stated lower than preset threshold, then starts second heat-exchange device.
In the present embodiment, the second heat-exchange device is opened through the above steps, passes through the temperature sense of air inlet 410 first Device detects the air temperature that air-conditioning input comes, and by the humidity inductive of air inlet 410 detect air-conditioning input come wind moisture, so Afterwards by air temperature and current temperature comparisons, wind moisture and preset threshold are compared, entered inside cabinet 400 both meeting In the case where can just open air inlet 410, allow air-conditioning input come wind enter inside cabinet 400, specifically, if Current Temperatures When in overheat range, at this moment battery 100 needs to radiate, then detects that air temperature is lower than Current Temperatures, and wind moisture is lower than pre- If threshold values is met the requirements, open the second heat-exchange device, if air temperature with humidity is any is unsatisfactory for requiring, be not turned on the Two heat-exchange devices.If Current Temperatures are in supercooling range, at this moment battery 100 needs the gain of heat, then detects air temperature than current Temperature heat, and wind moisture is lower than preset threshold, at this moment can start the second heat-exchange device, is otherwise not turned on the second heat exchange dress It sets.
The above description is only a preferred embodiment of the present invention, is not intended to limit the scope of the invention, all utilizations Equivalent structure or equivalent flow shift made by description of the invention and accompanying drawing content is applied directly or indirectly in other correlations Technical field, be included within the scope of the present invention.

Claims (10)

1. a kind of battery modules, which is characterized in that including battery pack, the first heat-exchange device, the second heat-exchange device and control Unit processed;
First heat-exchange device includes being flowed through for medium to carry out the replacement part of heat exchange, the replacement part fitting It is covered in the battery electrode column of the battery pack;
Second heat-exchange device includes cabinet, and the battery pack is placed in the inside of the cabinet, the side of the cabinet It is provided with air inlet, the other side of the cabinet is provided with air outlet;
Described control unit is set to the cabinet exterior, and controls the replacement part respectively and carry out heat exchange, and control The air inlet carries out air inlet and the air outlet carries out outlet air.
2. battery modules as described in claim 1, which is characterized in that the replacement part include power board, the first import with And first outlet, the power board are internally provided with channel, first import and first outlet are respectively arranged at described The both ends that channel is contacted with the external world.
3. battery modules as claimed in claim 2, which is characterized in that the channel is successively connected by multiple S-shaped pipelines Connect composition.
4. battery modules as claimed in claim 2, which is characterized in that the replacement part further includes insulating heat-conductive plate, described The battery electrode column of battery pack is attached by connection sheet, and the insulating heat-conductive plate is fitted in the connection sheet, the friendship Plate is changed to fit in the insulating heat-conductive plate.
5. battery modules as claimed in claim 4, which is characterized in that the connection sheet is in long strip, in the connection sheet The cross section of cross section between the battery and battery, the position than connecting in the connection sheet with the battery is small.
6. battery modules as described in claim 1, which is characterized in that second heat-exchange device further includes multiple corresponding institutes The isolation board of battery number is stated, each isolation board is fixedly installed on the side of a battery, and is placed in described in every two Between battery.
7. battery modules as claimed in claim 2, which is characterized in that further include multiple temperature sensors, humidity sensor, electricity Magnet valve;
Described control unit is electrically connected in the temperature sensor, humidity sensor and solenoid valve;
The temperature sensor is respectively arranged at the side wall of first import and the air inlet and the side of the battery pack Side is respectively used to detect the temperature of the temperature of the medium, the temperature of the input box house wind and the battery;
The humidity sensor is set to the air inlet, for detecting the humidity for inputting the box house wind;
The solenoid valve is set to first import and air inlet, is respectively used to limit flow velocity and the input of the medium The wind speed of the box house wind.
8. a kind of battery heat change method is applied in the described in any item battery modules of the claims 1-7, feature exists In, comprising the following steps:
Obtain the Current Temperatures of the battery pack;
Judge whether the Current Temperatures are in preset normal temperature range;
If it is not, then corresponding heat-exchange device is opened by preset rules according to the Current Temperatures, by the Current Temperatures tune The normal temperature range, the heat-exchange device include first heat-exchange device and second heat exchange dress It sets.
9. battery heat change method as claimed in claim 8, which is characterized in that the air inlet and air conditioning air exhaust mouth are connected, It is described to open corresponding heat-exchange device by preset rules according to the Current Temperatures, the Current Temperatures are adjusted to described The step of normal temperature range, comprising:
Judge whether the Current Temperatures are in specified range, the specified range is mistake more higher than the normal temperature range Heat rating, or supercooling range more lower than the normal temperature range;
If the Current Temperatures are in the specified range, start second heat-exchange device, In when air-conditioning has turned on Start first heat-exchange device when air-conditioning is not opened;
If the Current Temperatures are not at the specified range, first heat-exchange device is opened, while having opened in air-conditioning Start the second heat-exchange device when opening.
10. battery heat change method as claimed in claim 9, which is characterized in that the battery modules are described in claim 7 Battery modules, described the step of starting second heat-exchange device when air-conditioning has turned on, comprising:
Detection by the air-conditioning convey Lai wind air temperature and wind moisture;
The air temperature and the Current Temperatures are compared, and wind moisture and preset threshold are compared;
When the Current Temperatures are in overheat range, the air temperature is lower than the Current Temperatures, and the wind moisture is lower than Preset threshold then starts second heat-exchange device;
When the Current Temperatures are in supercooling range, the air temperature is than the Current Temperatures warm, and the wind moisture is lower than Preset threshold then starts second heat-exchange device.
CN201910766069.8A 2019-08-19 2019-08-19 Battery module and battery heat exchange method Active CN110534840B (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111403847A (en) * 2020-03-28 2020-07-10 哈尔滨工程大学 Power battery tab heat dissipation system based on coupling of phase change material and U-shaped flat heat pipe
CN111403845A (en) * 2020-03-28 2020-07-10 哈尔滨工程大学 Power battery tab heat dissipation system capable of exhausting waste gas

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202373647U (en) * 2011-12-15 2012-08-08 株洲市高远电池有限公司 Power battery connecting piece
CN202917184U (en) * 2012-09-27 2013-05-01 国钰电子(北海)有限公司 Heat dissipation structure
US20140233184A1 (en) * 2013-02-21 2014-08-21 Cyberonics, Inc. Phase change material as a dynamic heat sink for trancutaneous energy transmission systems
US20150340745A1 (en) * 2014-05-23 2015-11-26 Denso Corporation Battery pack
CN105655651A (en) * 2015-09-08 2016-06-08 江苏海四达电源股份有限公司 Articulated reeling structure of U shaped busbar of lithium ion battery
CN205723860U (en) * 2016-04-21 2016-11-23 广东五洲龙电源科技有限公司 A kind of battery modules with heat management device
CN107275559A (en) * 2017-06-02 2017-10-20 深圳市欣旺达电气技术有限公司 Battery apparatus
CN107305938A (en) * 2016-04-25 2017-10-31 比亚迪股份有限公司 Cell connector, battery modules and electrokinetic cell bag
CN107732348A (en) * 2017-09-26 2018-02-23 睿馨(珠海)投资发展有限公司 Power battery module and its cooling system
CN108321448A (en) * 2018-03-05 2018-07-24 西南交通大学 A kind of efficient rail traffic energy storage heat management system and its thermal management algorithm
CN109066003A (en) * 2018-07-16 2018-12-21 江苏银基烯碳能源科技有限公司 Thermal management device of battery
US20190140457A1 (en) * 2017-11-08 2019-05-09 Nanjing Chervon Industry Co., Ltd. Battery charging method, battery charger and charging assembly
CN109860950A (en) * 2019-01-29 2019-06-07 武汉理工大学 A kind of heat management device of combined electric automobile power cell

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202373647U (en) * 2011-12-15 2012-08-08 株洲市高远电池有限公司 Power battery connecting piece
CN202917184U (en) * 2012-09-27 2013-05-01 国钰电子(北海)有限公司 Heat dissipation structure
US20140233184A1 (en) * 2013-02-21 2014-08-21 Cyberonics, Inc. Phase change material as a dynamic heat sink for trancutaneous energy transmission systems
US20150340745A1 (en) * 2014-05-23 2015-11-26 Denso Corporation Battery pack
CN105655651A (en) * 2015-09-08 2016-06-08 江苏海四达电源股份有限公司 Articulated reeling structure of U shaped busbar of lithium ion battery
CN205723860U (en) * 2016-04-21 2016-11-23 广东五洲龙电源科技有限公司 A kind of battery modules with heat management device
CN107305938A (en) * 2016-04-25 2017-10-31 比亚迪股份有限公司 Cell connector, battery modules and electrokinetic cell bag
CN107275559A (en) * 2017-06-02 2017-10-20 深圳市欣旺达电气技术有限公司 Battery apparatus
CN107732348A (en) * 2017-09-26 2018-02-23 睿馨(珠海)投资发展有限公司 Power battery module and its cooling system
US20190140457A1 (en) * 2017-11-08 2019-05-09 Nanjing Chervon Industry Co., Ltd. Battery charging method, battery charger and charging assembly
CN108321448A (en) * 2018-03-05 2018-07-24 西南交通大学 A kind of efficient rail traffic energy storage heat management system and its thermal management algorithm
CN109066003A (en) * 2018-07-16 2018-12-21 江苏银基烯碳能源科技有限公司 Thermal management device of battery
CN109860950A (en) * 2019-01-29 2019-06-07 武汉理工大学 A kind of heat management device of combined electric automobile power cell

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111403847A (en) * 2020-03-28 2020-07-10 哈尔滨工程大学 Power battery tab heat dissipation system based on coupling of phase change material and U-shaped flat heat pipe
CN111403845A (en) * 2020-03-28 2020-07-10 哈尔滨工程大学 Power battery tab heat dissipation system capable of exhausting waste gas

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