CN109638388A - A kind of batteries of electric automobile packet thermal storage and energy accumulation device - Google Patents
A kind of batteries of electric automobile packet thermal storage and energy accumulation device Download PDFInfo
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- CN109638388A CN109638388A CN201811517159.5A CN201811517159A CN109638388A CN 109638388 A CN109638388 A CN 109638388A CN 201811517159 A CN201811517159 A CN 201811517159A CN 109638388 A CN109638388 A CN 109638388A
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- batteries
- energy accumulation
- heat
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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
- H01M10/615—Heating or keeping warm
-
- 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
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
- H01M10/486—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for measuring temperature
-
- 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
- H01M10/617—Types of temperature control for achieving uniformity or desired distribution of temperature
-
- 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
-
- 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
- H01M10/63—Control systems
- H01M10/635—Control systems based on ambient temperature
-
- 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
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6552—Closed pipes transferring heat by thermal conductivity or phase transition, e.g. heat pipes
-
- 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
- H01M10/6567—Liquids
- H01M10/6568—Liquids characterised by flow circuits, e.g. loops, located externally to the cells or cell casings
-
- 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
- H01M10/659—Means for temperature control structurally associated with the cells by heat storage or buffering, e.g. heat capacity or liquid-solid phase changes or transition
-
- 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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- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Automation & Control Theory (AREA)
- Secondary Cells (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The present invention provides a kind of batteries of electric automobile packet thermal storage and energy accumulation device applied to electric car parts technical field, heat-storing material (4) are set in heat exchanger tube (3) in the device inner shell (1) of batteries of electric automobile packet thermal storage and energy accumulation device, accumulation of heat heating battery core (5) in heat exchanger tube (3) is connect with charging interface (6), device inner shell (1) is connected to thermal storage and energy accumulation device inlet (7) and thermal storage and energy accumulation device liquid outlet (8) respectively, thermal storage and energy accumulation device inlet (7) is connected to the cavity outlet of the temperature control cavity of batteries of electric automobile packet, thermal storage and energy accumulation device liquid outlet (8) is connected to the chamber inlet of the temperature control cavity of batteries of electric automobile packet, batteries of electric automobile packet thermal storage and energy accumulation device of the invention, it is filled under battery pack low temperature environment, it is preheated when electric discharge to mention The charging-discharging performances and service life of battery pack of high battery pack, while it being not required to consumption battery pack electric energy, improve the course continuation mileage of electric car.
Description
Technical field
The invention belongs to electric car parts technical fields, are to be related to a kind of batteries of electric automobile packet more specifically
With thermal storage and energy accumulation device.
Background technique
It is more and more nervous in global energy situation, and under the overall background that various countries' car ownership persistently rises violently, new energy
Automobile has been pulled on the teeth of the storm, and a key technology of new-energy automobile is that power battery, and the property of power battery
Can and security reliability be affected by temperature it is huge, so battery pack heat management system is particularly significant.New energy car battery packet heat
Management system is to cope with the hot relevant issues of battery, guarantee power battery service performance, safety and the key technology in service life it
One.The major function of battery pack heat management system includes: that (1) is effectively radiated when battery temperature is higher, prevents heat
Incontrollable accidents；(2) preheated when battery temperature is lower, promote battery temperature, it is ensured that charging, discharge performance under low temperature and
Safety；(3) reduce the temperature difference in battery pack, inhibit the formation of local hot spots, prevent at high temperature location that battery is too fast to decline
Subtract, reduces battery pack bulk life time.For battery pack low-temperature prewarming function, existing solution generally uses PTC to battery
Packet coolant liquid heat or directly heated to battery core using PTC to realize, the disadvantage done so is both to need to match
Set High-Power PTC electric heater unit and control system, when preheating consumes the electric energy of battery itself again, with battery pack lightweight and whole
The light-weighted mentality of designing of vehicle runs in the opposite direction, and seriously restricts battery performance.
Summary of the invention
The technical problems to be solved by the present invention are: can substitute in view of the shortcomings of the prior art, to provide a kind of structure simple
Existing High-Power PTC electric heater unit, is preheated under battery pack low temperature environment when charge and discharge to improve battery pack
Charging-discharging performances and service life of battery pack, while consumption battery pack is not needed certainly when preheating to battery pack low temperature charge and discharge
The batteries of electric automobile packet thermal storage and energy accumulation device of the course continuation mileage of electric car can be improved in body electric energy.
Solve the problems, such as techniques discussed above, the technical scheme adopted by the invention is as follows:
The present invention is a kind of batteries of electric automobile packet thermal storage and energy accumulation device, and the batteries of electric automobile packet is stored up with accumulation of heat
Energy device includes device inner shell, device outer shell, and heat exchanger tube is arranged in the device inner shell, sets in heat exchanger tube
Heat-storing material is set, accumulation of heat heating battery core is also set up in heat exchanger tube, accumulation of heat heating battery core is connect with charging interface, device inner shell
It is connected to respectively with thermal storage and energy accumulation device inlet and thermal storage and energy accumulation device liquid outlet, thermal storage and energy accumulation device inlet and electric car
The cavity outlet of the temperature control cavity of battery pack is connected to, the temperature control cavity of thermal storage and energy accumulation device liquid outlet and batteries of electric automobile packet
Chamber inlet connection, the cavity of the temperature control cavity of the batteries of electric automobile packet is interior to inject heat exchanging fluid.
The batteries of electric automobile packet thermal storage and energy accumulation device further includes circulating pump, and circulating pump setting is in electric car electricity
In the temperature control cavity body of Chi Bao, circulating pump is positioned close to thermal storage and energy accumulation device inlet position, the temperature control of batteries of electric automobile packet
Temperature sensor is set in cavity, and temperature sensor is connect with control unit.
Body clearance portion is set between the device inner shell and device outer shell, and body clearance portion is vacuum shape
State, thermal storage and energy accumulation device inlet pass through device outer shell and are connected to device inner shell, and thermal storage and energy accumulation device liquid outlet is worn
Device outer shell is crossed to be connected to device inner shell.
The anti-thermal dispersant coatings of inner shell, table in the device outer shell is arranged in the device inner shell outer surface
The anti-thermal dispersant coatings of outer shell are arranged in face.
Multiple tracks heat exchanger tube is set in the hollow cavity of the device inner shell, and multiple tracks heat exchanger tube is arranged by gap, often
Heat-storing material is respectively set in road heat exchanger tube, heat-storing material is set as heating the structure that battery core is bonded with accumulation of heat.
The batteries of electric automobile packet is set as being located at the accumulation of heat heating battery core in the heat exchanger tube of thermal storage and energy accumulation device
Structure inside heat-storing material.
Also set up multiple tracks baffle plate in the device inner shell, multiple tracks baffle plate includes multiple upside baffle plates and more
A downside baffle plate, multiple upside baffle plates press gap setting in internal layer housing upper surface position, between multiple downside baffle plates are pressed
Gap is arranged in internal layer housing lower surface position.
Multiple upside baffle plates of the baffle plate and multiple downside baffle plate interlaced arrangements, each downside baffle plate are set
It is set to the structure positioned at two adjacent upside baffle plates middle position, each upside baffle plate is configured to extend close to
The structure of inner shell lower surface position, each downside baffle plate are configured to extend close to inner shell upper surface location
Structure.
The batteries of electric automobile packet is glycol water with the heat exchanging fluid of thermal storage and energy accumulation device, and ethylene glycol is water-soluble
The portion rate of ethylene glycol is 50% or more in liquid；The heat-storing material is binary composite fused salt or tri compound fused salt or unitary
Fused salt
The preferably black nickel coating of coating that surface is arranged in the device inner shell outer surface and crust of the device body.
Using technical solution of the present invention, can obtain it is below the utility model has the advantages that
Batteries of electric automobile packet thermal storage and energy accumulation device of the invention utilizes external electrical when electric car stopping for charging
The energy energy makes heat-storing material to carry out heating accumulation of energy to heat-storing material to heat storage heating battery core power supply (not shown)
First heating storage sensible heat, then storage latent heat is undergone phase transition, in this way, batteries of electric automobile packet thermal storage and energy accumulation device can be reliably real
The deposit of existing thermal energy, in case using.When electric car carries out charge or discharge at low ambient temperatures, as long as detecting battery
Temperature is arranged lower than pipeline start up by preheating in the temperature of packet, and batteries of electric automobile packet is started to work with thermal storage and energy accumulation device, is circulation first
Pump startup will be located in the intracorporal heat exchanging fluid fastener driving device inner shell of temperature control cavity of battery pack, contact with heat exchanger tube, exchanges heat
Fluid absorbs heat, and the heat exchanging fluid after the completion of absorbing heat enters battery pack, preheats to battery core mould group, heat exchanging fluid heat release drop
Wen Hou, then absorbed heat again by circulation pump circulation fastener driving device inner shell, it moves in circles, until the battery core mould group temperature in battery pack
The thermal energy that degree reaches in preheating termination setting value or device inner shell discharges until terminating, and at this moment batteries of electric automobile packet is used
Thermal storage and energy accumulation device, to realize the target preheated when battery pack low temperature charge and discharge work.The device of the invention, can be complete
It substitutes the charge and discharge that existing PTC electric heater unit and control system carry out battery pack under low temperature environment to preheat, so that battery pack
Battery core mould group be in the higher temperature range of efficiency and carry out charge and discharge, improve input, the output effect of the battery core mould group of battery pack
In addition rate improves service life of battery pack；In addition to this, the device of the invention can also bring following PTC electric heater unit not have
It is standby the utility model has the advantages that do not consume the electric energy stored in battery pack, electric car course continuation mileage or battery pack can also be improved
Capacity, which subtracts, matches, and realizes battery pack light-weight design.Batteries of electric automobile packet thermal storage and energy accumulation device of the present invention, can replace
For existing High-Power PTC electric heater unit, preheated under battery pack low temperature environment when charge and discharge to improve battery pack
Charging-discharging performances and service life of battery pack, while consumption battery pack electricity is not required to when preheating to battery pack low temperature charge and discharge
Can, the course continuation mileage of electric car can be improved.
Detailed description of the invention
Brief description is made to content expressed by each attached drawing of this specification and the label in figure below:
Fig. 1 is the overall structure diagram of batteries of electric automobile packet thermal storage and energy accumulation device of the present invention；
Fig. 2 is that the broken section structure of the heat exchanger tube of batteries of electric automobile packet thermal storage and energy accumulation device of the present invention is shown
It is intended to；
Attached drawing acceptance of the bid note is respectively as follows: 1, device inner shell；2, device outer shell；3, heat exchanger tube；4, heat-storing material；5,
Battery core is heated in accumulation of heat；6, charging interface；7, thermal storage and energy accumulation device inlet；8, thermal storage and energy accumulation device liquid outlet；9, body clearance
Portion；10, baffle plate；11, upside baffle plate；12, downside baffle plate；13, inner shell upper surface；14, inner shell lower surface.
Specific embodiment
Below against attached drawing, by the description of the embodiment, to for example related each structure of a specific embodiment of the invention
The works such as the shape of part, construction, the mutual alignment between each section and connection relationship, the effect of each section and working principle are further
Detailed description:
As shown in attached drawing 1, attached drawing 2, the present invention is a kind of batteries of electric automobile packet thermal storage and energy accumulation device, and described is electronic
Automobile batteries packet thermal storage and energy accumulation device includes device inner shell 1, device outer shell 2, in the device inner shell 1
Heat exchanger tube 3 is set, heat-storing material 4 is set in heat exchanger tube 3, accumulation of heat heating battery core 5 is also set up in heat exchanger tube 3, battery core 5 is heated in accumulation of heat
It is connect with charging interface 6, device inner shell 1 connects with thermal storage and energy accumulation device inlet 7 and thermal storage and energy accumulation device liquid outlet 8 respectively
Logical, thermal storage and energy accumulation device inlet 7 is connected to the cavity outlet of the temperature control cavity of batteries of electric automobile packet, and thermal storage and energy accumulation device goes out
Liquid mouth 8 is connected to the chamber inlet of the temperature control cavity of batteries of electric automobile packet, the temperature control cavity of the batteries of electric automobile packet
Cavity in inject heat exchanging fluid.Above structure is added using the external electric energy energy to heat storage when electric car stopping for charging
Thermoelectricity core power supply (not shown) makes heat-storing material first heat up and stores sensible heat to carry out heating accumulation of energy to heat-storing material, then
Storage latent heat is undergone phase transition, in this way, batteries of electric automobile packet can reliably realize the deposit of thermal energy with thermal storage and energy accumulation device, in case
It uses.When electric car carries out charge or discharge at low ambient temperatures, as long as detecting the temperature of battery pack lower than preheating
Starting setting temperature, batteries of electric automobile packet are started to work with thermal storage and energy accumulation device, are circulation pump startup first, will be located at battery
It in the intracorporal heat exchanging fluid fastener driving device inner shell of the temperature control cavity of packet, is contacted with heat exchanger tube, heat exchanging fluid absorbs heat, heat absorption
Heat exchanging fluid after the completion enters battery pack, preheats to battery core mould group, after heat exchanging fluid heat release cooling, then is followed by circulating pump
Ring fastener driving device inner shell is absorbed heat again, is moved in circles, until the battery core module temperature in battery pack reaches preheating termination and sets
Thermal energy in definite value or device inner shell discharges until terminating, at this moment batteries of electric automobile packet thermal storage and energy accumulation device, from
And realize the target preheated when battery pack low temperature charge and discharge work.The device of the invention can substitute existing PTC electricity completely and add
Thermal and control system carry out the charge and discharge under low temperature environment to battery pack and preheat, so that the battery core mould group of battery pack is in
The higher temperature range of efficiency carries out charge and discharge, improves input, the delivery efficiency of the battery core mould group of battery pack, in addition improves electricity
Pond packet service life；In addition, the device of the invention can also bring that following PTC electric heater unit do not have the utility model has the advantages that i.e. not
The electric energy that stores in consumption battery pack, can also improve electric car course continuation mileage or battery inclusion quantity subtracts and matches, and realize battery
Packet light-weight design.Batteries of electric automobile packet thermal storage and energy accumulation device of the present invention, structure is simple, can substitute existing
High-Power PTC electric heater unit is preheated under battery pack low temperature environment when charge and discharge to improve the charge and discharge of battery pack
Performance and service life of battery pack, while consumption battery pack itself electric energy is not required to when preheating to battery pack low temperature charge and discharge, it can
Improve the course continuation mileage of electric car.
The batteries of electric automobile packet thermal storage and energy accumulation device further includes circulating pump, and circulating pump setting is in electric car electricity
In the temperature control cavity body of Chi Bao, circulating pump is positioned close to thermal storage and energy accumulation device inlet position, the temperature control of batteries of electric automobile packet
Temperature sensor is set in cavity, and temperature sensor is connect with control unit；Solenoid valve is set on thermal storage and energy accumulation device inlet 7
I, solenoid valve II is set on thermal storage and energy accumulation device liquid outlet 8, and solenoid valve I and solenoid valve II are connect with control unit respectively.It is above-mentioned
Structure is monitored (the thermotonus battery of heat exchanging fluid by temperature of the temperature sensor to the heat exchanging fluid in battery pack
The temperature of packet), and the temperature data monitored feeds back to control unit, control unit according to temperature data control loop pump startup with
It is no.When the intracorporal heat exchanging fluid of the temperature control cavity of battery pack is lower than the normal temperature numerical value being arranged in control unit, control unit control
System circulation pump startup, controls solenoid valve I and solenoid valve II opens simultaneously, circulating pump flows the intracorporal heat exchange of the temperature control cavity of battery pack
Body is pumped into device inner shell by thermal storage and energy accumulation device inlet 7, and heat exchanging fluid is contacted with heat exchanger tube, heat exchanging fluid into
Row heat absorption, completes heat exchange, and the heat exchanging fluid after the completion of absorbing heat enters back into the temperature of battery pack by thermal storage and energy accumulation device liquid outlet 8
Cavity is controlled, battery pack is heated, realizes the target preheated when battery pack low temperature charge and discharge work, it is ensured that battery pack is always
It works in proper temperature range, improves the service life.
Body clearance portion 9 is set between the device inner shell 1 and device outer shell 2, and body clearance portion 9 is true
Dummy status, thermal storage and energy accumulation device inlet 7 pass through device outer shell 2 and are connected to device inner shell 1, and thermal storage and energy accumulation device goes out
Liquid mouth 8 passes through device outer shell 2 and is connected to device inner shell 1.Between between device inner shell 1 and device outer shell 2
The vacuum state in gap portion is arranged, and effectively plays insulating effect, the heat-energy losses of effective avoiding device inner shell storage, to propose
High thermal energy storage effect, meets electric car actual demand.
1 outer surface of device inner shell is arranged the anti-thermal dispersant coatings of inner shell, in the device outer shell 2
The anti-thermal dispersant coatings of outer shell are arranged in surface.Above structure being capable of effective puncture device inner layer case by the setting of twice coating
The intracorporal heat dissipation for changing interior heat radiation to ambient enviroment realizes that thermal energy saves for a long time.In addition, body clearance portion carries out
Vacuumize process plays insulating effect, completely cuts off heat transfer and thermal convection, further increases thermal energy preservation.
Multiple tracks heat exchanger tube 3 is set in the hollow cavity of the device inner shell 1, multiple tracks heat exchanger tube 3 is arranged by gap,
Heat-storing material 4 is respectively set in per pass heat exchanger tube 3, heat-storing material 4 is set as heating the structure that battery core 5 is bonded with accumulation of heat.Heat exchange
Pipe side can be connect with device inner shell side wall, realize fixing respectively for heat exchanger tube.Above structure passes through multiple tracks heat exchanger tube
Setting, heat exchanger tube can effectively be distributed in device inner shell, increase heat accumulation area, improve energy storage total amount, meet electronic
The practical pre- heat demand of automobile long-time, it is no longer necessary to frequent energy storage.
Accumulation of heat heating battery core 5 in the heat exchanger tube 3 of the batteries of electric automobile packet thermal storage and energy accumulation device is set as position
Structure inside heat-storing material 4.Above structure is arranged as the another way of accumulation of heat heating battery core arrangement in accumulation of heat material
Material is internal, effectively improves thermal energy transmitting.
Multiple tracks baffle plate 10 is also set up in the device inner shell 1, multiple tracks baffle plate 10 includes multiple upside bafflings
Plate 11 and multiple downside baffle plates 12, multiple upside baffle plates 11 by gap setting in 13 position of internal layer housing upper surface, it is multiple
Downside baffle plate 12 is by gap setting in 14 position of internal layer housing lower surface.Multiple upside baffle plates 11 of the baffle plate 10
With multiple 12 interlaced arrangements of downside baffle plate, each downside baffle plate 12 is set as being located in two adjacent upside baffle plates 11
Between position structure, each upside baffle plate is configured to extend close to the structure of 14 position of inner shell lower surface, often
A downside baffle plate 12 is configured to extend close to the structure of 13 position of inner shell upper surface.Each upside baffle plate and
Lower baffle gap is set between inner shell lower surface 14, is arranged between each downside baffle plate and inner shell upper surface 13
Upper baffle gap, the setting of baffle gap position are for flowing through use, baffle gap height to heat exchanging fluid
Size is equivalent to the 15%-35% or so of height dimension between inner shell upper surface 13 and inner shell lower surface 14.It is above-mentioned
Structure, the setting of multiple upside baffle plates 11 and multiple downside baffle plates 12, so that forming cyclic bending in device inner shell
The snakelike channel convenient for heat exchanging fluid flowing effectively increase heat exchange area, by force so that heat exchanging fluid is flowed around baffle plate
Change heat exchange efficiency.The heat exchanger tube of different parts is fixedly connected with the baffle plate of corresponding position respectively, realizes that heat exchanger tube is fixed.
The batteries of electric automobile packet is glycol water with the heat exchanging fluid of thermal storage and energy accumulation device, and ethylene glycol is water-soluble
The portion rate of ethylene glycol is 50% or more in liquid；The heat-storing material 4 is binary composite fused salt or tri compound fused salt or one
First fused salt.
The preferably black nickel coating of coating of 1 outer surface of device inner shell and the setting of 2 inner surface of crust of the device body.It applies
The main blackness for considering material of the selection of layer, i.e. radiant emissivity, it is desirable that the lower the radiant emissivity of coating material the better, herein
It might as well recommend 0.077mg/cm2The black nickel coating of thickness, radiant emissivity is down to 0.07, so as to effectively meet performance need
It asks.
In the device of the invention, the big material of the thermal coefficients such as the preferred aluminum pipe of heat exchanger tube, copper pipe, the wall thickness of heat exchanger tube is being protected
It demonstrate,proves operational reliability and gets the small value as far as possible under the premise of the service life (such as 1mm), to reduce thermal resistance when heat exchange；In baffle plate, device
Layer shell, device outer shell, inlet, liquid outlet etc. can be made of stainless steel；Device inner shell and device
Clearance portion between outer shell guarantees high vacuum degree, and coating material guarantees alap blackness ε；Heat exchanging fluid is preferred
Automobile cooling, glycol water；Heat-storing material preferably not only can use its sensible heat but also can use its latent heat (latent heat of phase change
Value is the bigger the better) material stored up convenient for thermal energy such as any one in binary composite fused salt, tri compound fused salt, unitary fused salt
It is standby.
Batteries of electric automobile packet thermal storage and energy accumulation device of the invention utilizes external electrical when electric car stopping for charging
The energy energy makes heat-storing material to carry out heating accumulation of energy to heat-storing material to heat storage heating battery core power supply (not shown)
First heating storage sensible heat, then storage latent heat is undergone phase transition, in this way, batteries of electric automobile packet thermal storage and energy accumulation device can be reliably real
The deposit of existing thermal energy, in case using.When electric car carries out charge or discharge at low ambient temperatures, as long as detecting battery
Temperature is arranged lower than pipeline start up by preheating in the temperature of packet, and batteries of electric automobile packet is started to work with thermal storage and energy accumulation device, is circulation first
Pump startup will be located in the intracorporal heat exchanging fluid fastener driving device inner shell of temperature control cavity of battery pack, contact with heat exchanger tube, exchanges heat
Fluid absorbs heat, and the heat exchanging fluid after the completion of absorbing heat enters battery pack, preheats to battery core mould group, heat exchanging fluid heat release drop
Wen Hou, then absorbed heat again by circulation pump circulation fastener driving device inner shell, it moves in circles, until the battery core mould group temperature in battery pack
The thermal energy that degree reaches in preheating termination setting value or device inner shell discharges until terminating, and at this moment batteries of electric automobile packet is used
Thermal storage and energy accumulation device, to realize the target preheated when battery pack low temperature charge and discharge work.The device of the invention, can be complete
It substitutes the charge and discharge that existing PTC electric heater unit and control system carry out battery pack under low temperature environment to preheat, so that battery pack
Battery core mould group be in the higher temperature range of efficiency and carry out charge and discharge, improve input, the output effect of the battery core mould group of battery pack
In addition rate improves service life of battery pack；In addition to this, the device of the invention can also bring following PTC electric heater unit not have
It is standby the utility model has the advantages that do not consume the electric energy stored in battery pack, electric car course continuation mileage or battery pack can also be improved
Capacity, which subtracts, matches, and realizes battery pack light-weight design.Batteries of electric automobile packet thermal storage and energy accumulation device of the present invention, can replace
For existing High-Power PTC electric heater unit, preheated under battery pack low temperature environment when charge and discharge to improve battery pack
Charging-discharging performances and service life of battery pack, while consumption battery pack electricity is not required to when preheating to battery pack low temperature charge and discharge
Can, the course continuation mileage of electric car can be improved.
Above in conjunction with attached drawing, an exemplary description of the invention, it is clear that concrete implementation of the present invention is not by above-mentioned
The limitation of mode, as long as using the various improvement that the inventive concept and technical scheme of the present invention carry out, or not improved by this
The conception and technical scheme of invention directly apply to other occasions, are within the scope of the invention.
Claims (10)
1. a kind of batteries of electric automobile packet thermal storage and energy accumulation device, it is characterised in that: the batteries of electric automobile packet accumulation of heat
Energy storage device includes device inner shell (1), device outer shell (2), and heat exchanger tube is arranged in the device inner shell (1)
(3), heat-storing material (4) are set in heat exchanger tube (3), accumulation of heat heating battery core (5) is also set up in heat exchanger tube (3), battery core is heated in accumulation of heat
(5) connect with charging interface (6), device inner shell (1) respectively with thermal storage and energy accumulation device inlet (7) and thermal storage and energy accumulation device
Liquid outlet (8) connection, thermal storage and energy accumulation device inlet (7) are connected to the cavity outlet of the temperature control cavity of batteries of electric automobile packet,
Thermal storage and energy accumulation device liquid outlet (8) is connected to the chamber inlet of the temperature control cavity of batteries of electric automobile packet, the electric car
Heat exchanging fluid is injected in the cavity of the temperature control cavity of battery pack.
2. batteries of electric automobile packet thermal storage and energy accumulation device according to claim 1, it is characterised in that: the electronic vapour
Vehicle battery pack thermal storage and energy accumulation device further includes circulating pump, and circulating pump is arranged in the temperature control cavity body of batteries of electric automobile packet, follows
Ring pump is positioned close to thermal storage and energy accumulation device inlet (7) position, and setting temperature passes in the temperature control cavity body of batteries of electric automobile packet
Sensor, temperature sensor are connect with control unit.
3. batteries of electric automobile packet thermal storage and energy accumulation device according to claim 1 or 2, it is characterised in that: device internal layer
Body clearance portion (9) are set between shell (1) and device outer shell (2), body clearance portion (9) are vacuum state, accumulation of heat storage
Energy device inlet (7) passes through device outer shell (2) and is connected to device inner shell (1), thermal storage and energy accumulation device liquid outlet (8)
It is connected to across device outer shell (2) with device inner shell (1).
4. batteries of electric automobile packet thermal storage and energy accumulation device according to claim 1 or 2, it is characterised in that: the dress
Inner shell (1) the outer surface setting anti-thermal dispersant coatings of inner shell are set, outer layer is arranged in device outer shell (2) inner surface
The anti-thermal dispersant coatings of shell.
5. batteries of electric automobile packet thermal storage and energy accumulation device according to claim 1 or 2, it is characterised in that: the dress
It sets in the hollow cavity of inner shell (1) and multiple tracks heat exchanger tube (3) is set, multiple tracks heat exchanger tube (3) is arranged by gap, per pass heat exchanger tube
(3) it is respectively set heat-storing material (4) in, heat-storing material (4) is set as heating the structure that battery core (5) are bonded with accumulation of heat.
6. batteries of electric automobile packet thermal storage and energy accumulation device according to claim 1, it is characterised in that: the electronic vapour
Accumulation of heat heating battery core (5) in the heat exchanger tube (3) of vehicle battery pack thermal storage and energy accumulation device is set as being located at heat-storing material (4) inside
Structure.
7. batteries of electric automobile packet thermal storage and energy accumulation device according to claim 1 or 2, it is characterised in that: the dress
It sets and also sets up multiple tracks baffle plate (10) in inner shell (1), multiple tracks baffle plate (10) includes multiple upside baffle plates (11) and more
A downside baffle plate (12), multiple upside baffle plates (11) press gap setting in internal layer housing upper surface (13) position, under multiple
Side baffle plate (12) is by gap setting in internal layer housing lower surface (14) position.
8. batteries of electric automobile packet thermal storage and energy accumulation device according to claim 7, it is characterised in that: the baffle plate
(10) multiple upside baffle plates (11) and multiple downside baffle plates (12) interlaced arrangement, each downside baffle plate (12) are set as
Structure positioned at two adjacent upside baffle plate (11) middle positions, each upside baffle plate (11) are configured to inner layer
The structure that housing lower surface (14) direction extends, each downside baffle plate (12) are configured to inner layer housing upper surface (13)
The structure that direction extends.
9. batteries of electric automobile packet thermal storage and energy accumulation device according to claim 1 or 2, it is characterised in that: the electricity
The heat exchanging fluid of electrical automobile battery pack thermal storage and energy accumulation device is glycol water, the number of ethylene glycol in glycol water
Than 50% or more；The heat-storing material (4) is binary composite fused salt or tri compound fused salt or unitary fused salt.
10. batteries of electric automobile packet thermal storage and energy accumulation device according to claim 1 or 2, it is characterised in that: the dress
Set the preferably black nickel coating of coating of inner shell (1) outer surface and the setting of crust of the device body (2) inner surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811517159.5A CN109638388A (en) | 2018-12-12 | 2018-12-12 | A kind of batteries of electric automobile packet thermal storage and energy accumulation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811517159.5A CN109638388A (en) | 2018-12-12 | 2018-12-12 | A kind of batteries of electric automobile packet thermal storage and energy accumulation device |
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Application publication date: 20190416 |