CN104795514A - Housing used for at least a battery module or battery system, and battery pack with a housing surrounding battery system - Google Patents
Housing used for at least a battery module or battery system, and battery pack with a housing surrounding battery system Download PDFInfo
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- CN104795514A CN104795514A CN201510022117.4A CN201510022117A CN104795514A CN 104795514 A CN104795514 A CN 104795514A CN 201510022117 A CN201510022117 A CN 201510022117A CN 104795514 A CN104795514 A CN 104795514A
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- drying medium
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- transducer
- battery
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
- H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
- H01M50/209—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/613—Cooling or keeping cold
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
- B01D53/0454—Controlling adsorption
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/26—Drying gases or vapours
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/26—Drying gases or vapours
- B01D53/261—Drying gases or vapours by adsorption
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/26—Drying gases or vapours
- B01D53/28—Selection of materials for use as drying agents
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/4207—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells for several batteries or cells simultaneously or sequentially
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
- H01M10/625—Vehicles
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6569—Fluids undergoing a liquid-gas phase change or transition, e.g. evaporation or condensation
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/66—Heat-exchange relationships between the cells and other systems, e.g. central heating systems or fuel cells
- H01M10/663—Heat-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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/233—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions
- H01M50/24—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries from their environment, e.g. from corrosion
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/30—Arrangements for facilitating escape of gases
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/30—Arrangements for facilitating escape of gases
- H01M50/308—Detachable arrangements, e.g. detachable vent plugs or plug systems
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/60—Arrangements or processes for filling or topping-up with liquids; Arrangements or processes for draining liquids from casings
- H01M50/691—Arrangements or processes for draining liquids from casings; Cleaning battery or cell casings
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/40—Alkaline earth metal or magnesium compounds
- B01D2251/404—Alkaline earth metal or magnesium compounds of calcium
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/40—Alkaline earth metal or magnesium compounds
- B01D2251/408—Alkaline earth metal or magnesium compounds of barium
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/60—Inorganic bases or salts
- B01D2251/602—Oxides
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/106—Silica or silicates
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/106—Silica or silicates
- B01D2253/108—Zeolites
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/112—Metals or metal compounds not provided for in B01D2253/104 or B01D2253/106
- B01D2253/1124—Metal oxides
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/20—Metals or compounds thereof
- B01D2255/209—Other metals
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/80—Water
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/40—Further details for adsorption processes and devices
- B01D2259/40083—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption
- B01D2259/40088—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption by heating
- B01D2259/40096—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption by heating by using electrical resistance heating
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Electrochemistry (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Analytical Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Drying Of Gases (AREA)
Abstract
The invention relates to a housing (1) used for at least a battery module (2) or a battery system. The housing comprises at least a drying unit (3) which is arranged in the housing (1). The drying unit is provided with a drying medium (4) which absorbs moisture. The housing also comprises at least a thermoregulation unit (5) used to regenerate the drying medium (4), and at least a control device (13). The control device is configured to control regeneration of the drying medium (4). The housing (1) comprises at least a valve (6). The valve has a fist state and a second state. The valve (6) basically closes the housing (1) in the first state in an airtight manner, and in the second state, the valve (6) can realize that moisture emitted in regeneration of the drying medium (4) discharges from the housing (1). In addition, the invention relates to a battery pack, which has the battery system and the housing (1) surrounding the battery system.
Description
Technical field
The present invention relates to a kind of housing at least one battery module or battery system, this housing comprises at least one and is arranged in drying unit within housing, and described drying unit has the drying medium of an absorbing moisture; Described housing also comprises at least one for the thermostat units that makes described drying medium and regenerate and at least one control device, and described control device is configured to the regeneration controlling described drying medium.
In addition, the present invention relates to a kind of battery pack with the housing of a battery system and this battery system of encirclement.
Background technology
In order to be provided as the energy needed for operation of hybrid vehicle, plug-in hybrid electric vehicle or electric motor car, use battery system.These battery systems have multiple battery unit be electrically connected to each other usually, especially multiple rechargeable lithium ion unit.Described battery unit is electrically connected to each other into so-called battery module usually at this, and wherein, a battery system can comprise multiple battery module again.In order to protect the battery module of battery system battery system in other words, the battery module that battery system is single is in other words arranged in a housing.This housing is used herein to protection, in case mechanical load, as collided, and/or prevents moisture.
The known housing for battery module or battery system usually cannot prevent or cannot prevent moisture from entering into housing completely, especially due to these housings must be able to realize in housing around room and housing between pressure balance, therefore there are the following problems, and the air humidity be namely brought in housing can liquefy in other words on the parts of battery system on the parts of battery module.The moisture of liquefaction especially can cause corrosion and damage at this and/or causes short circuit and damage battery system battery module in other words thus.
In order to solve this problem it is known that a drying medium, such as silica gel are brought in housing in room, wherein, drying medium absorbing moisture and therefore prevent the liquefaction of atmospheric moisture on the parts of battery system battery module in other words from air.Again, drying medium only can receive limited amount moisture to problem in the case.In order to solve this problem, known from publication DE 10 2,010 028 861 A1, when drying medium reaches saturated, produce a sensor signal, thus saturated drying medium can be changed with new drying medium.Due to the battery system in the housing of the layout in order to use in vehicle, the replacing of drying medium needs to enter in workshop usually, therefore cannot realize the careful replacing of drying medium at this.In addition, this replacing expends with work and combines.In addition, in order to keep very little by replacing construction interval, also needing a large amount of drying mediums to be brought in housing, which thereby enhance weight, is undesirable when this especially uses in vehicle.
In order to avoid this shortcoming it is known that make drying medium regenerate by heat input, wherein, the water combined by drying medium is made to evaporate and again discharge by heat input.Like this, from publication DE 10 2,008 034 698 A1, there is known a kind of battery with battery container, this battery container comprises one with the dryness storehouse of the medium of absorbing moisture.Described drying medium can be periodically heated at this, in order to discharge the moisture combined by drying medium thus by means of heater coil.
A kind of battery system is also disclosed from publication DE 10 2,009 032 463 A1, it has a drying unit and a housing, this housing has at least one shell nozzle, for the gas exchanges in the inside of housing, between the outside of housing and drying unit.In order to heat described drying medium and in order to be discharged from drying medium by moisture, shell nozzle can have a heater strip at this, wherein proposes, heat described heater strip in order to make described drying medium regenerate with the constant time interval.
Problem in the solution according to publication DE 10 2,008 034 698 A1 and the solution according to publication DE 10 2,009 032 463A1 is, the parts that the moisture of release can be deposited to battery system battery module in other words when the regeneration of described drying medium exist again danger that is corrosion-damaged or short circuit thus.
Within this context, task of the present invention is, improves the housing described in article beginning, especially improve as follows, namely combine the regeneration of the drying medium arranged in the housing, improve a kind of battery system battery module in other words arranged in the housing, in case the moisture discharged by drying medium.
Summary of the invention
In order to solve this task, propose a kind of housing at least one battery module or battery system, described housing comprises at least one and is arranged in drying unit within described housing, and described drying unit has the drying medium of an absorbing moisture; Described housing also comprises at least one for the thermostat units that makes described drying medium and regenerate and at least one control device, described control device is configured to the regeneration controlling described drying medium, wherein, described housing comprises at least one valve, described valve can have the first state and the second state, wherein, described valve housing described in gastight closing substantially in the first state, and the moisture that described valve can realize releasing when described drying medium regeneration is in the second state from the effusion described housing.Especially should not have malaria when closed valve to be brought in housing.At this, the sealing for closed valve does not have extra high requirement, because drying medium advantageously receives the atmospheric moisture be brought in housing; This is expressed by statement " substantially airtightly ".
Described drying unit especially can be configured to container at this, especially dryness storehouse, and wherein, drying medium is advantageously arranged in drying unit.Described drying medium is a kind of material a kind of material mixture in other words preferably, and this material in other words material mixture is configured in conjunction with moisture absorbing moisture in other words.This drying medium can especially comprise zeolite, silica gel, phosphorus pentoxide, barium monoxide and/or calcium oxide.
That preferably surround described drying unit according to the thermostat units of housing of the present invention or one be integrated into heating element in described drying unit, especially heater coil, heater strip and/or heating plate.
At least one valve of described housing is preferably equilibrated valve, is particularly preferably so-called pressure compensation unit (PBU).This equilibrated valve is advantageously configured to balance the pressure differential between the inside of housing and the outside of housing, and mode is, this equilibrated valve can realize become a mandarin the in other words air of air to the definition in housing and go out stream from the definition housing.At least one valve of described housing advantageously constructs as follows at this, makes it only have the numerical value when described pressure differential to be 100mbar(mbar: millibar) time just opens.Otherwise at least one valve described advantageously closes.
According to a kind of favourable design of housing of the present invention, described control device comprises a micro-control circuit or an application-specific integrated circuit (ASIC) (ASIC; ASIC:Application Specific Integrated Circuit), its preferable configuration for receiving and evaluate the sensor signal of regeneration in order to control and/or regulate described drying medium, and advantageously controls according to the result of described evaluation the regeneration regulating described drying medium in other words.
The design code that another kind according to the present invention is favourable, described control device is configured to control at least one valve described.Especially specify at this, described control device can manipulate at least one valve described as follows, and the valve closed is opened when drying medium regenerates, thus d/d moisture can be overflowed from housing by the opening of the described housing opened by valve.In addition, especially specify, described control device can manipulate at least one valve described as follows, and the valve opened is closed after described drying medium regeneration.Advantageously, described closed valve prevents moisture to enter into inner housing from the surrounding outside housing.
Advantageously, described housing comprises at least one transducer, wherein, at least one transducer described is connected with described control device to transmit detected measured value, and described control device controls the regeneration of described drying medium according to detected measured value.Especially specify, described housing comprises multiple transducer.These transducers are preferably placed within housing at this.Especially specify, at least one transducer described can be arranged in outside housing.
The structure favourable according to the another kind of housing of the present invention, at least one transducer is the transducer of the amount for detecting the moisture absorbed by drying medium, and/or at least one transducer is the transducer for detecting the relative air humidity within housing.Advantageously, by described at least one can know for the transducer detecting the amount of the moisture absorbed by drying medium whether reach or at least approximately reach the saturated of drying medium.Advantageously can know the regeneration requirements of described drying medium thus.Especially specify, when the predetermined limiting value more than for the amount of the moisture received by drying medium, started the regeneration of described drying medium by described control device.The detection of the amount of the moisture detected by described drying medium especially can be known via the conductibility of described drying medium at this, or determine to know by the quality of described drying medium, because described drying medium becomes heavy along with the moisture received increasedly.If the detection of the amount of the moisture received by drying medium is determined to carry out by means of the quality of described drying medium, then especially specify, utilize a reference value, this reference value pushes away in measuring by means of two of the drying medium of the drying medium of 0% humidity and 100% humidity before being placed in housing by the drying unit comprising described drying medium.
Described at least one can an especially electron capacitance formula humidity sensor for the transducer detecting the relative air humidity within housing.This transducer can be additional to or alternative in described at least one arrange for the transducer detecting the amount of the moisture absorbed by drying medium.If the air humidity within housing detected by transducer is elevated to exceed a predefined limiting value, then this can result from usually, and described drying medium is saturated.Therefore preferably specify, when exceeded one correspondingly the predefined limiting value for the air humidity within housing time, start the regeneration of described drying medium.
The design code favourable according to the another kind of housing of the present invention, at least one transducer is transducer for detecting the air pressure within housing and at least one transducer is transducer for detecting the air pressure outside housing.Transducer for detecting the air pressure within housing is arranged within housing at this.Transducer for detecting the air pressure outside housing is arranged in outside housing at this, is preferably placed on the outer wall of housing.Measured value detected by transducer is preferably passed on control device.Especially specify at this, during the air pressure only having the air pressure within housing to be greater than outside housing, the regeneration of ability described drying medium by control device.Especially specify at this, the air pressure within housing must be greater than air pressure outside housing with a predetermined threshold value.In addition especially specify, when press in air exceed the air pressure outside housing with a predetermined threshold value time, at least one valve of described housing is opened.This threshold value is preferably 100mbar at this.Opening of at least one valve described can trigger surely at this TV structure, particularly by the spring element of the corresponding machinery of described valve, or is controlled by described control device.In the following way, namely in the design that this is favourable, during the air pressure only having the air pressure within housing to be greater than outside housing, just carry out the regeneration of described drying medium, the pressure balance between enclosure interior and casing surroundings is advantageously carried out when at least one valve described is opened, wherein, taken out of by drying medium from housing by regenerating the moisture discharged by this pressure balance.Like this, advantageously prevent the sedimentation of discharged moisture on the parts arranging battery system in the housing.
The design code favourable according to the another kind of housing of the present invention, at least one transducer is transducer for detecting the dew point temperature within housing and at least one transducer is transducer for detecting the temperature within housing.Measured value detected by transducer is advantageously passed on the control device of described housing at this.Especially specify at this, only has the dew point temperature within described housing lower than the temperature in described housing, during temperature that is especially lower than the metal parts of the air themperature in described housing and/or described battery system and/or battery module, described control device just starts the regeneration of described drying medium.By this control of the regeneration of described drying medium, advantageously prevent when described dew point temperature is corresponding to the temperature in housing described dew point temperature is greater than environment temperature in other words time, carry out the regeneration of described drying medium.Namely the moisture discharged by drying medium is in this case deposited in as condensate liquid on the parts of layout battery system in the housing and/or battery module.This situation is advantageous by the dew point temperature of enclosure interior according to the present invention and the detection of temperature and prevented according to the control of regeneration of the present invention.
According to a kind of favourable design variant regulation of the present invention, the control device of described housing mechanically realizes at least in part.Especially according to one of the present invention advantageously design code, described control device comprises the snap switch of a machinery, described snap switch is arranged the drying unit comprising described drying medium, wherein, described snap switch be configured to make along with increase, the moisture that absorbed by described drying medium and overcome described snap switch spring force motion and when determine the distance of process trigger the regeneration of described drying medium.Advantageously utilize in the case, described drying medium becomes heavy along with the increasing of reception of moisture, thus snap switch overcomes the power motion of the spring of the machinery of snap switch.Especially in this regulation, described snap switch, from the distance of a process determined, i.e. switch distance, contacts a contact element, advantageously makes closing of circuit thus.Especially specify, described contact element is by thermostat units described in the contact activation of described snap switch, thus described drying medium is heated by described thermostat units due to heat input, is vaporized by moisture and therefore make described drying medium regenerate from described drying medium.Especially specify, when described drying medium roughly 90% is saturated with moisture, described snap switch closes described circuit.In addition especially specify, described snap switch or to treat that the contact element of the described circuit of contact closed by described snap switch has one delayed, thus only when 10 just the opening switch contact again with when moisture saturated and therefore stop described regenerative process of reservation of described drying medium.Advantageously, in design of the present invention, only having when there is actual regeneration requirements, just triggering the regeneration of described drying medium.Advantageously eliminate other sensing device for detecting the amount of moisture received by drying medium in this design.
Be according to the particularly advantageous design of the another kind of housing of the present invention, described drying unit has at least two openings, wherein, described drying unit utilizes at least one first opening to be connected with at least one valve of described housing, and utilize at least one other valve of the second opening and at least one to be connected, wherein, described drying unit is connected with room in described housing via at least one other valve described.Advantageously, described drying unit is connected with room in described housing as follows via at least one other valve described, make when at least one other valve described is opened, the drying medium be arranged in described drying unit can receive the moisture of the inside from described housing.Advantageously, at least one valve of described housing and/or at least one other valve described control by the control device of described housing.
Especially specify, when described valve closes, described drying unit fully closes substantially airtightly, thus described drying medium by described housing room encapsulating and described drying medium cannot receive moisture from enclosure interior.Advantageously specify, at least one valve of described housing and at least one other valve described oppositely open and close, especially as follows, namely when at least one other valve described closes, at least one valve of described housing is opened, and when at least one other valve described is opened, at least one valve of described housing closes.Especially specify, when described drying medium regeneration, at least one valve of described housing is opened.At least one other valve described is closed at this, thus the moisture discharged by described drying medium advantageously cannot arrive the inside of housing.On the contrary, in normal operation, namely when described drying medium is not reproduced, regulation, at least one other valve described is opened, thus described drying medium is by the opening accepts in the described drying unit that opened by least one other valve described and the moisture combined from enclosure interior.At least one valve of described housing advantageously closes at this, thus does not have other moisture and enter into housing from outside.
The design code favourable according to the another kind of housing of the present invention, described thermostat units is to the switch element of a temperature-sensitive, preferably have an impact for bimetallic reversing switch, wherein, at least one valve of described housing and/or at least one other valve described are controlled by described switch element.The particularly advantageous design of one according to the present invention, described valve is controlled as follows at this, the switch element of described thermostat units when described drying medium is by being the heat heating of releasing for temperature-sensitive is had an impact as follows, at least one valve of described housing is opened and at least one other valve described closes, thus the moisture of being released by described drying medium is merely able to the opening effusion of the described drying unit by being opened by the valve of described housing and therefore advantageously can not escape into the inside of described housing.
According to the particularly advantageous design code of the another kind of housing of the present invention, described control device is configured to, and when meeting the combination of one of following condition or these conditions, starting the regeneration of described drying medium and/or continuing a regenerative process started:
Air pressure within described housing is greater than the air pressure outside described housing, is preferably at least greater than a predefined threshold value; And/or
Dew point temperature within described housing lower than the temperature within described housing, preferably at least lower than a predefined threshold value; And/or
The amount of the moisture received by described drying medium is on a predefined threshold value.
In addition can specify other condition, when should carry out the regeneration of described drying medium, especially the regeneration started by described control device.
In addition, in order to solve the task described in article beginning, propose a kind of battery pack, it has a battery system and and surrounds the housing of this battery system, and wherein, described housing is one according to housing of the present invention.According to a kind of favourable design code of described battery pack, described battery system comprises at least one for carrying out the cooling device of temperature adjustment to the battery unit of described battery system, wherein, the thermostat units of described housing is the cooling device for carrying out temperature adjustment to described battery unit.Described drying medium is advantageously directly arranged on described cooling device at this.Especially specify in this type of design, the temperature of described battery unit is detected by means of at least one transducer, interim, when only having the temperature when described battery unit not need by described cooling device cooling, described cooling device is just used for carrying out temperature adjustment to described drying medium.By the utilization of the cooling device of described battery system, advantageously eliminate other thermostat units.Thereby simplify according to the design cost of battery pack of the present invention and decrease and produce the cost combined.The design favourable according to another kind can specify, described drying unit is arranged on described battery unit together with described drying medium, and wherein, the heat of being released in charging process by battery unit is for the regeneration of described drying medium.In the case, described battery unit is advantageously used for the thermostat units of housing.
The design code favourable according to the another kind of battery pack of the present invention, described battery system comprises a battery management system, and wherein, the control device of described housing is the parts of described battery management system, preferred battery/control unit (BCU).Advantageously further reduce design cost thus.Desirably reduce other cost during fabrication thus.
Accompanying drawing explanation
Other favourable details of the present invention, characteristic sum design details are combined in the embodiment shown in accompanying drawing to describe in detail.Wherein:
Fig. 1 there is shown one for the embodiment of housing according to the present invention in a signal, has the battery module be arranged in wherein;
Fig. 2 there is shown another embodiment for housing according to the present invention in a signal, has the battery module be arranged in wherein, wherein, carries out the regeneration of described drying medium;
Fig. 3 there is shown another embodiment for housing according to the present invention in a signal, has the battery module be arranged in wherein; And
Fig. 4 there is shown another embodiment for housing according to the present invention in a signal, has the battery module be arranged in wherein.
Embodiment
Figure 1 illustrates a housing 1, in this housing, arrange two battery modules 2.This housing 1 constructs substantially airtightly at this, thus advantageously wetlyly or wetly at least hardly can not enter into closed housing 1.
Described housing 1 has an equilibrated valve 6.When the air pressure within housing 1 and the pressure differential between the air pressure outside housing 1 have exceeded the numerical value of a definition, such as, during 100mbar, described equilibrated valve 6 is advantageously opened.This such as uses when described housing 1 and there will be during hill path travels in vehicle.Via the gas exchanges that the equilibrated valve 6 opened can realize between the inside of housing 1 and the outside of housing 1 at this.
Arrange that battery module 2 within the case 1 comprises multiple that construct, rechargeable lithium ion unit 7 respectively prismaticly, they are arranged side by side and are electrically connected to each other.
In order to the conductive contact of battery unit 7, described battery unit has unit terminal 8 respectively.The battery unit 7 of described battery module 2 is arranged on the contact plate 9 of a heating power.Under the contact plate 9 of this heating power, described housing 1 has a drying unit 3.
Drying medium 4, such as a silica gel is arranged in this drying unit 3.This drying unit 3 constructs as follows at this, makes it possible to the exchange of the air realized between the air within drying medium 4 and housing 1.In order to make described drying medium 4 regenerate, in described drying unit 3, arrange a thermostat units 5.This thermostat units 5 is a heater coil in an illustrated embodiment.It is heated when an electric current by this heater coil, is again released by the moisture received thus by described drying medium 4.The contact plate 9 of described heating power advantageously protects described battery unit 7 in case the heat of being released by described heater coil 5 at this.
In the embodiment shown in fig. 1, described housing 1 also comprises two transducers 11, for detecting the amount of the moisture received by described drying medium 4.In addition, described housing 1 comprises two for detecting the transducer 12 of air pressure.One of them to be arranged in outside housing 1 and the air pressure detected outside housing 1 at this for the transducer 12 that detects air pressure.Second to be arranged within housing 1 and the air pressure detected within housing 1 for the transducer 12 detecting air pressure.
Housing 1 in FIG also comprises a control device 13, and it controls described thermostat units 5.In addition, the sensor values detected by transducer 11,12 is passed on described control device 13.Especially specify to only have when transducer 11 sends signal to control device 13 at this, when namely having exceeded the threshold value for the amount of moisture received by described drying medium 4 determined, just carry out the regeneration of described drying medium 4.Preferably, when described drying medium 90% is saturated with moisture, the regeneration of described drying medium 4 is just carried out.
In addition, in order to carry out the regeneration of described drying medium 4, advantageously specify, the air pressure within housing 1 must with a predefined threshold value higher than the air pressure outside housing 1.This is known by means of the measured value provided by transducer 12 by described control device 13.As previously shown, when the difference between the air pressure outside the air pressure within housing 1 and housing 1 has exceeded a predefined threshold value, the valve 6 of housing 1 has been opened.This predefined threshold value is advantageously greater than following threshold value with a numerical value Δ X, in order to carry out the regeneration of described drying medium 4, must be over this threshold value.Δ X is 1% of this advantageously described threshold value.Advantageously ensure that thus, described equilibrated valve 6 is opened around after described drying medium 4 regenerates, thus the moisture discharged in the process regenerated at described drying medium 4 is overflowed from housing 1.
According to a kind of structural deformation of housing 1, especially can specify, described control device 13 also controls the valve 6 of housing 1, and wherein, valve 6 especially can be configured to magnet valve.In the case, when pressure in air is greater than air external pressure, valve 6 is opened by control device 13 when regenerating, thus can carry out moisture from the effusion housing 1.
Illustrate in fig. 2, how to discharge by the heating of described thermostat units 5 moisture be combined with described drying medium 4.The moisture discharged is illustrated by cloud 14 in fig. 2 at this labeled.Because the air pressure within housing 1 is higher than the air pressure outside housing 1, therefore discharged moisture 14 is overflowed from housing 1 by the valve 6 opened of housing 1.The moisture 14 discharged schematically is illustrated by arrow 15 from the effusion housing 1 in fig. 2 at this.
Fig. 3 shows a kind of favourable structural change according to housing 1 of the present invention, has the battery system be arranged in wherein.This battery system comprises two battery modules 2 and a cooling system 16 at this.Battery unit 7 by means of this cooling system 16 pairs of battery modules 2 carries out temperature adjustment.For this reason, described battery unit 7 is arranged on the contact plate 5 by the heating power of a coolant percolation of described cooling system 16.Described contact plate 5 has path 10 at this, and coolant is by described channel flow.Show coolant stream in figure 3 by arrow 17 labeled.This coolant can especially water-ethylene glycol mixture or a kind of cold-producing medium, as R1234yf.Described cooling device 16 is particularly useful for when the high external temperature of battery unit 7 or strong stand under load, such as cool batteries unit 7 between battery unit 7 charge period.In addition, described cooling system 16 is advantageously used in the heating battery unit 7 when low external temperature.
A drying unit 3 comprising drying medium 4 is arranged respectively under described contact plate 5.This drying unit 3 can realize the gas exchanges with the inside of housing 1 at this.Described drying medium 4 is such as silica gel.
In structural change of the present invention in figure 3, the described cooling system 16 in other words corresponding contact plate 5 by the heating power of coolant percolation is applied the register for making described drying medium 4 regenerate.Arrange extra transducer 18 in the case, they detect the temperature of battery unit 7.Detected measured value is passed to control device 13 place at this.When only having the temperature when battery unit 7 to allow one to heat, the described cooling device 16 in other words corresponding contact plate 5 by the heating power of coolant percolation is just manipulated by control device 13 and is used as the register regenerating described drying medium 4.
The structural scheme regulation favourable according to the another kind of housing 1 shown in figure 3, housing 1 comprises other transducer, such as, described in composition graphs 1, is particularly useful for the transducer of the air pressure detected within housing 1 and outside housing 1.In addition preferably, housing 1 has one for detecting the transducer and of the dew point temperature within housing 1 for detecting the transducer of the temperature within housing 1, wherein, only have when the temperature of housing 1 inside has exceeded dew point temperature, described control device 13 just starts the regeneration of described drying medium 4, thus prevents the moisture discharged by drying medium to liquefy on the parts of battery module 2.In addition advantageously, housing 1 has one respectively for detecting the transducer of the moisture received by drying medium 4, wherein, only has the measurement when the moisture received by drying medium 4 to draw, drying medium at least 80% is saturated, then control device 13 just starts regenerative process under other circumstances.
Housing 1 in figure 3 shows an embodiment for battery pack according to the present invention together with the battery system be arranged in wherein at this.
Figure 4 illustrates one for another favourable embodiment of housing 1 according to the present invention.Arrange battery module 2 again within the case 1 at this, described battery module comprises multiple battery unit 7.The drying medium 4 be arranged in the drying unit 3 of housing 1 is brought into the moisture of housing 1 inside in this reception and therefore prevents moisture to liquefy on the parts of battery module 2.
The drying unit 3 of housing 1 has two openings 19,20.Utilize the first opening 19 that drying unit 3 is connected with the outside of housing 1 via the valve 6 of housing 1.Via the second opening 20, drying unit 3 is connected with the inside of housing 1 via other a valve 21, thus drying medium 4 can take away moisture from housing 1 inside when open valve 21.
In addition, drying unit 3 has the container 25 of an inside, comprises described drying medium 4 in this embodiment.The heater coil 5 of an electricity is arranged at this, as the thermostat units for heating described drying medium 4 around the container 25 of this inside.This container 25 is arranged on the snap switch 22 of a machinery within drying unit 3, and this snap switch has a contact 23.A contact element 24 is arranged with a predetermined distance under this contact 23.Along with the moisture received more and more by described drying medium 4, described container 25 overcomes the power of the mechanical spring of described snap switch 22, by a guide rail 26 guiding downwards and at this to pressing down described snap switch 23.When described drying medium 4 roughly 90% is saturated with moisture, described drying medium 4 is so heavy, makes the initial range of snap switch 22 completely between described contact element 24 and described contact 23 and described contact 23 contacts described contact element 24.
By thermostat units 5 described in this contact activation.The regeneration of drying medium 4 starts.The contact activating described thermostat units 5 advantageously designs as follows at this, make its only when described drying medium 4 with ten roughly percent of moisture saturated just again open and therefore stopped the heat release by described thermostat units 5.This can in known manner by switch contact delayed accordingly, preferably utilize adjustable switching point to carry out.Advantageously, described drying medium 4 by described thermostat units 5 in the diagram shown in embodiment when, to only have when existence one regeneration requirements and just heated.Thus for drying medium 4 heating needed for energy requirement advantageously very little.
In the thermal radiation region of thermostat units 5, also arrange the switch element of a temperature-sensitive when embodiment in the diagram, be a bimetallic reversing switch 29 at this, described thermostat units 5 has an impact to this switch element when heating.Described valve 6 and described valve 21 is controlled via this bimetallic reversing switch.Described valve 6 and 21 is configured to magnet valve at this.
If described thermostat units 5 is activated, the heat then produced by described thermostat units 5 has an impact for described bimetallic reversing switch 29, then this bimetallic reversing switch 29 switch under the effect of described thermostat units 5, opens described valve 6 and closed described valve 21 thus.Closing by valve 21, makes described drying unit 3 close relative to the inside of housing 1.Therefore the moisture of being released by drying medium 4 cannot arrive the inside of housing 1, but only escapes into the outside of housing 1 from drying unit 3 via opening 19 and the valve 6 opened.
In order to make moisture overflow from drying unit 3 better, can carry out moisture via valve 6 through vacuum controlled sucking-off (not shown in the diagram).
The thermostat units 5 of the housing 1 illustrated of illustrating in the accompanying drawings especially also can realize as the heating element of eiloid, plate shape and/or film-shaped.According to the unshowned structural change of one, when the regeneration of the heat produced when the battery unit 7 of battery module 2 charges and/or discharges for described drying medium 4, the heating element of activation advantageously can be cancelled.In such configuration, described drying unit 3 is advantageously in lasting thermo-contact with the contact plate 9 of heating power, and this contact plate is arranged described battery unit 7.
Illustrated in the accompanying drawings and described by reference to the accompanying drawings embodiment is for setting forth the present invention and being not used in restriction the present invention.Especially the parts in the accompanying drawings do not illustrate with not drawing in proportion.
Claims (13)
1., for the housing (1) of at least one battery module (2) or battery system, described housing comprises at least one and is arranged in drying unit (3) within described housing (1), and described drying unit has the drying medium (4) of an absorbing moisture, described housing also comprises at least one for the thermostat units (5) that makes described drying medium (4) and regenerate and at least one control device (13), described control device is configured to the regeneration controlling described drying medium (4), it is characterized in that, described housing (1) comprises at least one valve (6), described valve can have the first state and the second state, wherein, described valve (6) housing described in gastight closing (1) substantially in the first state, and the moisture that described valve (6) can realize discharging when described drying medium (4) regenerates in the second state is from the effusion described housing (1).
2. housing according to claim 1, is characterized in that, described control device (13) is configured to control described at least one valve (6).
3. according to housing in any one of the preceding claims wherein (1), it is characterized in that, described housing (1) comprises at least one transducer (11,12), wherein, at least one transducer described (11,12) is connected with described control device (13) to transmit detected measured value, and described control device (13) controls the regeneration of described drying medium (4) according to detected measured value.
4. housing according to claim 3 (1), it is characterized in that, at least one transducer transducer that to be transducer (11) for detecting the amount of moisture absorbed by described drying medium (4) and/or at least one transducer be for detecting the relative air humidity within described housing.
5. according to claim 3 or housing according to claim 4 (1), it is characterized in that, at least one transducer transducer (12) that to be transducer (12) for detecting the air pressure within described housing (1) and at least one transducer be for detecting the air pressure outside described housing (1).
6. the housing (1) according to any one of aforementioned claim 3 to 5, it is characterized in that, at least one transducer transducer that to be transducer for detecting the dew point temperature within described housing (1) and at least one transducer be for detecting the temperature within described housing (1).
7. according to housing in any one of the preceding claims wherein (1), it is characterized in that, described control device comprises the snap switch (22) of a machinery, described snap switch is arranged the drying unit (3) comprising described drying medium (4), wherein, described snap switch (22) be configured to overcome along with the increasing moisture absorbed by described drying medium (4) described snap switch (22) spring force motion and when determine the distance of process trigger the regeneration of described drying medium (4).
8. according to housing in any one of the preceding claims wherein (1), it is characterized in that, described drying unit (3) has at least two openings (19,20), wherein, described drying unit (3) utilizes at least one first opening (19) to be connected with at least one valve (6) of described housing (1), and utilize at least one second opening (20) to be connected with at least one other valve (21), wherein, described drying unit (3) is connected with the interior room of described housing (1) via at least one other valve (21) described.
9. according to housing in any one of the preceding claims wherein (1), it is characterized in that, the switch element (29) of described thermostat units (5) to a temperature-sensitive has an impact, wherein, at least one valve (6) of described housing (1) and/or at least one other valve (21) described are controlled by described switch element (29).
10. according to housing in any one of the preceding claims wherein (1), it is characterized in that, described control device (13) is configured to, and when meeting the combination of one of following condition or these conditions, starting the regeneration of described drying medium (4) and/or continuing a regenerative process started:
Air pressure within described housing (1) is greater than the air pressure outside described housing (1); And/or
Dew point temperature within described housing (1) is lower than the temperature within described housing (1); And/or
The amount of the moisture received by described drying medium (4) is on a predefined threshold value.
11. battery pack, have the housing (1) that a battery system and surrounds described battery system, it is characterized in that, described housing (1) is housing according to any one of claim 1 to 10.
12. battery pack according to claim 11, it is characterized in that, described battery system comprises one to carry out temperature adjustment cooling device for the battery unit (7) to described battery system, wherein, the thermostat units (5) of described housing (1) carries out the cooling device of temperature adjustment to described battery unit (7) and described drying medium (4) is arranged on described cooling device.
13., according to claim 11 or battery pack according to claim 12, is characterized in that, described battery system comprises a battery management system, and wherein, the control device (13) of described housing (1) is the parts of described battery management system.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102014200789.5 | 2014-01-17 | ||
| DE102014200789.5A DE102014200789A1 (en) | 2014-01-17 | 2014-01-17 | Housing for at least one battery module or a battery system and battery pack with a housing surrounding a battery system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104795514A true CN104795514A (en) | 2015-07-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510022117.4A Pending CN104795514A (en) | 2014-01-17 | 2015-01-16 | Housing used for at least a battery module or battery system, and battery pack with a housing surrounding battery system |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN104795514A (en) |
| DE (1) | DE102014200789A1 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105185947A (en) * | 2014-03-04 | 2015-12-23 | 罗伯特·博世有限公司 | Device and method for dry battery, battery, battery system and vehicle |
| CN105762428A (en) * | 2016-03-03 | 2016-07-13 | 宁德时代新能源科技股份有限公司 | Battery pack |
| CN105990618A (en) * | 2015-03-16 | 2016-10-05 | 罗伯特·博世有限公司 | Battery regulation with adsorbent regeneration |
| CN106972123A (en) * | 2015-12-04 | 2017-07-21 | 罗伯特·博世有限公司 | shell for battery pack system |
| CN108292785A (en) * | 2016-07-05 | 2018-07-17 | 株式会社Lg化学 | Battery pack with the safety device for cooling water leakage |
| CN110379959A (en) * | 2018-04-12 | 2019-10-25 | 曼·胡默尔有限公司 | Battery air drier, battery system and electric vehicle battery |
| CN114069130A (en) * | 2020-08-05 | 2022-02-18 | 保时捷股份公司 | Battery housing for a motor vehicle battery |
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| EP3179548B1 (en) * | 2015-12-07 | 2021-02-17 | Robert Bosch GmbH | Drying device of a battery, method for operating the same and battery, and vehicle containing the same |
| DE102020101017A1 (en) | 2020-01-17 | 2021-07-22 | Audi Aktiengesellschaft | Electronic functional unit with a liquid binding element |
| EP4187678A1 (en) * | 2021-11-30 | 2023-05-31 | MANN+HUMMEL GmbH | Climate module, battery housing and high voltage battery box |
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| CN105185947A (en) * | 2014-03-04 | 2015-12-23 | 罗伯特·博世有限公司 | Device and method for dry battery, battery, battery system and vehicle |
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| CN106972123A (en) * | 2015-12-04 | 2017-07-21 | 罗伯特·博世有限公司 | shell for battery pack system |
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| CN108292785A (en) * | 2016-07-05 | 2018-07-17 | 株式会社Lg化学 | Battery pack with the safety device for cooling water leakage |
| CN108292785B (en) * | 2016-07-05 | 2021-04-27 | 株式会社Lg化学 | Battery pack including coolant leakage safety device |
| CN110379959A (en) * | 2018-04-12 | 2019-10-25 | 曼·胡默尔有限公司 | Battery air drier, battery system and electric vehicle battery |
| CN114069130A (en) * | 2020-08-05 | 2022-02-18 | 保时捷股份公司 | Battery housing for a motor vehicle battery |
Also Published As
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| DE102014200789A1 (en) | 2015-07-23 |
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Application publication date: 20150722 |