CN206878137U - A kind of automobile power cell bidirectional temp regulation and thermal runaway non-proliferation structure - Google Patents
A kind of automobile power cell bidirectional temp regulation and thermal runaway non-proliferation structure Download PDFInfo
- Publication number
- CN206878137U CN206878137U CN201720289653.5U CN201720289653U CN206878137U CN 206878137 U CN206878137 U CN 206878137U CN 201720289653 U CN201720289653 U CN 201720289653U CN 206878137 U CN206878137 U CN 206878137U
- Authority
- CN
- China
- Prior art keywords
- battery
- fluid
- hole
- collecting tray
- heat conduction
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
Links
- 230000002457 bidirectional effect Effects 0.000 title claims abstract description 23
- 230000035755 proliferation Effects 0.000 title claims abstract description 20
- 239000012530 fluid Substances 0.000 claims abstract description 203
- 239000000758 substrate Substances 0.000 claims abstract description 121
- 230000008676 import Effects 0.000 claims abstract description 114
- 238000009434 installation Methods 0.000 claims abstract description 27
- 238000010438 heat treatment Methods 0.000 claims description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 13
- 238000005057 refrigeration Methods 0.000 claims description 12
- 238000007789 sealing Methods 0.000 claims description 10
- 238000009413 insulation Methods 0.000 claims description 8
- 230000005611 electricity Effects 0.000 claims description 6
- 239000011159 matrix material Substances 0.000 claims description 6
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 238000012544 monitoring process Methods 0.000 claims description 4
- 238000012545 processing Methods 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 229910000838 Al alloy Inorganic materials 0.000 claims description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- 239000004411 aluminium Substances 0.000 claims description 2
- 239000010407 anodic oxide Substances 0.000 claims description 2
- 239000000919 ceramic Substances 0.000 claims description 2
- 238000007596 consolidation process Methods 0.000 claims description 2
- 238000005520 cutting process Methods 0.000 claims description 2
- 238000007639 printing Methods 0.000 claims description 2
- 239000004744 fabric Substances 0.000 claims 1
- 230000007812 deficiency Effects 0.000 abstract description 3
- 210000004027 cell Anatomy 0.000 description 33
- 238000001816 cooling Methods 0.000 description 11
- 230000035939 shock Effects 0.000 description 9
- 230000000694 effects Effects 0.000 description 8
- 239000002826 coolant Substances 0.000 description 6
- 239000010410 layer Substances 0.000 description 6
- 238000012546 transfer Methods 0.000 description 5
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 229910001416 lithium ion Inorganic materials 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- 239000000110 cooling liquid Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- 239000005955 Ferric phosphate Substances 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000003522 acrylic cement Substances 0.000 description 1
- 238000003491 array Methods 0.000 description 1
- 230000003416 augmentation Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000036760 body temperature Effects 0.000 description 1
- 210000005056 cell body Anatomy 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000004200 deflagration Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005474 detonation Methods 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000005518 electrochemistry Effects 0.000 description 1
- 229920006333 epoxy cement Polymers 0.000 description 1
- 229940032958 ferric phosphate Drugs 0.000 description 1
- 238000009998 heat setting Methods 0.000 description 1
- WBJZTOZJJYAKHQ-UHFFFAOYSA-K iron(3+) phosphate Chemical compound [Fe+3].[O-]P([O-])([O-])=O WBJZTOZJJYAKHQ-UHFFFAOYSA-K 0.000 description 1
- 229910000399 iron(III) phosphate Inorganic materials 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 239000000615 nonconductor Substances 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000010076 replication Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
Classifications
-
- 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
Abstract
A kind of automobile power cell bidirectional temp regulation and thermal runaway non-proliferation structure, horizontal on square heat conduction substrate/vertical be spaced open up several battery installation through-holes and fluid through-hole, one cylindrical battery of tight set in each battery installation through-hole；Battery axial is axially mutually perpendicular to or parallel with fluid through-hole, heat conduction substrate is provided with import collecting tray and outlet collecting tray connects with fluid through-hole, corresponding fluid through-hole both ends, the seal cover board of one flat plate formula is covered each by heat conduction substrate opposite sides outer surface, and the outlet of import collecting tray inlet and outlet collecting tray is opened up in the vertical side of heat conduction substrate, the close heat conduction substrate bottom side position for being mounted with cover plate；The outlet of heat exchanger connection import collecting tray inlet and outlet collecting tray, forms heat-conducting fluid cycle heat exchange passage；The present apparatus solves existing heat management device exchange capability of heat deficiency, battery temperature is uneven, apparatus structure is complicated and the problems such as easily being interfered with each other with circuit, and the risk that thermal runaway can be avoided to be spread to battery around.
Description
Technical field
The utility model is related to electric automobile field, more particularly to the temperature adjusting of automobile power cell and thermal runaway it is nonproliferation
The technology of dissipating.
Background technology
Automobile power cell such as lithium ion battery energy density is high, and small volume, cycle life is longer, electric passenger vehicle,
Application potential and market are very big on commercial vehicle.But lithium ion battery in discharge and recharge operating process because of electrochemistry heat production and joule
Heat production causes own temperature to raise, and influences power performance and cycle life, and too high temperature even causes thermal runaway, causes certainly
The accidents such as combustion, blast, conventional negative electrode of lithium ion battery diaphragm decomposition temperature are 80~120 degrees Celsius, internal thermal runaway temperature
Degree is at 150~175 degrees Celsius.Therefore in normal work, its skin temperature needs to control within 50 degrees Celsius battery, to keep away
Exempt from heat accumulation and trigger capacity attenuation, thermal runaway, improve thermal safety.With the progress of battery material and technique, with ferric phosphate
Although lithium can be lifted to 60 degrees Celsius or higher for the battery operating temperature of positive electrode, as temperature is further up,
Battery capacity decay is obvious, and thermal runaway and Ignition Phenomena still can occur at high temperature.When thermal runaway occurs for a certain battery
During temperature drift, although using heat-barrier material and big battery interval thermal runaway can be avoided to be directly diffused into other batteries,
As thermal runaway cell heat gathers acceleration in a short time, battery material is caused to spray, it is possible to the battery around that ignites is led
Cause disaster.On the other hand, in the winter of some north cities in China, at low temperature, battery capacity significantly declines, or even can lead
The phenomenon for causing to start occurs.Therefore the research and implementation of power lithium-ion battery temperature control technology are particularly urgent.
At present, the heat management system of electrokinetic cell bag often only possesses the simple function of radiating, takes heat-conducting piece to carry out quilt
Dynamic cooling, or force air to cool down using cell channel.Passive cooling and forced air cooling cooling system small volume, cost
It is low, but radiating effect is very limited, and battery temperature uniformity is very poor, has a strong impact on battery life.Exploitation is needed to have
The heat-exchanger rig of more preferable performance, to improve battery heat exchange property.
Patent 201210399617.6 discloses a kind of battery module, including：Multiple rectangular cell monomers；And define
The substantially corrugated fin of serpentine shape, the corrugated fin carry alternate straightway and top section so that more Battery packs
At least one in monomer is arranged in the region being limited between adjacent straightway of the corrugated fin.The patent belong to by
Dynamic cooling, although with certain radiating effect, electrokinetic cell causes to contact to the no special fastening mechanism of fin heat transfer
Gap and thermal contact resistance are larger, and outwards heat transfer has the larger temperature difference at center, heat-sinking capability deficiency, is not suitable for motive-power battery.
Patent US8263250B2 discloses a kind of liquid cooling manifold structure for battery bag heat management, liquid cold metal
Pipe is bonded battery-arrangements after bending.Double-deck hot interfacial film addition between cold pipe and battery, for the cold pipe of the metal that is electrically insulated and
The collision of battery simultaneously reduces thermal resistance.However, due to there is no fixing assembling between cold pipe and battery, larger air is inevitably resulted in
Gap, in addition, frequent impact can also cause the air gap extra between cold pipe and battery among actual motion, and air is heat
Non-conductor, so as to cause larger interface contact heat resistance, be unfavorable for heat transfer, cause that battery temperature rise is higher, and the temperature difference is larger.
Patent 201210531497.0 discloses a kind of battery liquid cooling device, including 36 battery cells 1, upper lid
Structure and lower cover structure, superstructure include layer shell 8, cooling liquid outlet 5, upper cooling liquid flowing channel 12 and upper interface channel
7, lower cover structure forms including lower floor's housing 9, coolant inlet 4, lower cooling liquid flowing channel 13 and lower interface channel 10；Knot up and down
25 class rhombus flow channels of structure intermediate arrangement are simultaneously connected in series up and down, form fluid passage.Yet with the utility model Shen
Please all fluid passages be connected in series completely, there is very big flow resistance, it is necessary to consume more pump works, in addition, upper and lower covers need it is extra
Arrange screw, gasket seal cell cavity, it is not easy to seal, lid is placed in battery electrode top on fluid, with electrode converging piece
Interfere with each other, it is not easy to realize assembling, normal operation.
Patent 201310581581.8 discloses a kind of lithium-ion-power cell liquid cooling structure, including main body frame,
Water outlet end cap 2, water intake end lid 3, pad 5, battery cell 4, monitoring device 16, cylinder manifold 8, conflux piece 9 and bolt 10；It is described
Water intake end lid 3 and water outlet end cap 2 are linked together by being interference fitted with main body frame 1, form the 4x6 He of cylindrical cavity 13
5x7 coolant flow passage 14,15；The pad 5 be arranged in water outlet end cap 2, water intake end lid 3 and main body frame 1 it
Between, the battery cell 4 is arranged within cylindrical cavity 13, and the coolant flow channel cross-section is respectively designed to four sides and is
The class diamond structure and hypotenuse of circular arc be circular arc class triangular structure, be spaced apart around battery cell, coolant by
Entrance is flowed into after inlet cap, flows into outlet end cap by horizontal coolant flow passage respectively, is flowed out from outlet, and patent
Compared 201210531497.0 being connected in series entirely, the resistance of flow channel can be reduced.However, the structure not embody into and out of
Mouth collecting tray, how sealing problem does not solve entrance with cell cavity pad with outlet end cap.Fluid intake end cap is placed in
Battery electrode top, interfered with each other with electrode converging piece, hot line job easily occur short circuit, deflagration accident, be unfavorable for implement with
Normal operation.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of compact, efficient automobile power cell bidirectional temp regulation
And thermal runaway non-proliferation structure, solve that existing heat management device exchange capability of heat deficiency, coolant flow be uneven, apparatus structure
Risk complicated and the problems such as easily interfered with each other with circuit, that thermal runaway can be avoided to be spread to battery around, additionally has
Battery can normally start at a temperature of low temperature environment, and simple and compact for structure, and the cell output of unit volume is high, is easy to
Processing installation, safety coefficient is high, the advantages that beneficial to long-term use.
The utility model is achieved through the following technical solutions：
A kind of automobile power cell bidirectional temp regulation and thermal runaway non-proliferation structure, it is characterised in that：
Horizontal/vertical interval opens up several battery installation through-holes and fluid through-hole, heat conduction on square heat conduction substrate
The exposed face of matrix is electric insulation face, coaxial one profile of tight set and battery installation through-hole perforate shape in each battery installation through-hole
The cylindrical battery that shape matches；
Battery and fluid through-hole have two kinds of position allocation plans on heat conduction substrate：
A, battery axial and fluid through-hole are axially mutually perpendicular to：
Battery is in rectangular in-line arrangement, and fluid through-hole is in rectangular in-line arrangement in each column/often arrange battery both sides, between adjacent cell
Fluid through-hole share, fluid through-hole opening cross-sectional face is in along the elongated of battery axial vertical, i.e. fluid through-hole is along battery
The size that opens up of axial direction is more than and perpendicular to battery axial opens up size；
Corresponding fluid through-hole is located at the port on heat conduction substrate opposite sides outer surface, is opened respectively on two side external surface
If import collecting tray and outlet collecting tray, fluid through-hole both ends connect with import collecting tray and outlet collecting tray respectively, in heat conduction
Formed in matrix from import collecting tray, fluid through-hole again to the runner direction of outlet collecting tray；
B, battery axial and fluid through-hole are axially parallel to each other：
Battery is in rectangular in-line arrangement, stream of each battery between the center of four fluid through-holes, adjacent cell
Body through hole shares；
Corresponding fluid through-hole is located at the port on heat conduction substrate opposite sides outer surface, is opened respectively on two side external surface
If some link slots, link slot conduit cross section is in that is, link slot conduit opens up width and is less than along the elongated of battery axial arrangement
Open up depth；Link slot both ends connect the port that two fluid through-holes are located on the same side external surface of heat conduction substrate, and junction
Fluid through-hole opening size is more than connection trough aperture dimension；
Fluid through-hole all in heat conduction substrate is connected into some runners in parallel by link slot, multiple streams in every runner
Pass through link slot parallel connection and/or series connection between body through hole；
Interval opens up import collecting tray side by side on the side heat conduction substrate outer surface for opened up link slot and outlet is confluxed
Groove, runner are arranged between import collecting tray and outlet collecting tray；Import collecting tray/outlet collecting tray to open up position right respectively
Entrance point/port of export of two fluid through-holes at every runner both ends should be located at and each communicated with, formed in heat conduction substrate from
Import collecting tray, fluid through-hole arrive the runner direction of outlet collecting tray again；
Each groove, the magnitude relationship in hole are：Import collecting tray and outlet collecting tray conduit sectional area are maximum, and link slot conduit is cut
Area takes second place, and fluid through-hole duct sectional area is minimum, also, link slot opens up depth ﹥ fluid through-holes Kong Jing≤link slot and opened up
Width；On the premise of heat conduction substrate compactedness, mechanical shock resistance is ensured, to reduce flow resistance, pressure difference is reduced, and make stream
Body is uniformly distributed in fluid through-hole；
Make the cross section of a heat conduction substrate perpendicular to battery axial,
When the cross-sectional width is less than heat conduction substrate along in battery axial 2 times of height, battery and fluid through-hole press A side
Case configures or B arrangements；When by A arrangements, fluid through-hole is arranged axially along cross-sectional width direction；
When the cross-sectional width is more than or equal to heat conduction substrate along in battery axial 2 times of height, battery and fluid through-hole
By B arrangements；
The selection of two kinds of allocation plans, be considered ensure heat exchange effect (especially batteryuniformity effect) and
Heat-conducting fluid pressure difference before and after heat conduction substrate is flowed through is smaller in cycle heat exchange passage, therefore can save the drive of heat-conducting fluid flowing
The result of the two premises of dynamic pump work.
In above-mentioned A schemes or B schemes, corresponding fluid through-hole both ends, on heat conduction substrate opposite sides outer surface respectively
The seal cover board of one flat plate formula is covered, is formed and the runner on the side external surface of heat conduction substrate two, import collecting tray and outlet is converged
The sealing of chute, the exposed face of cover plate is electric insulation face, and battery both ends are exposed to outside cover plate, is connected beneficial to circuit；
According to vertical/horizontal difference for opening up mode of battery installation through-hole, import remittance is opened up on heat conduction substrate or cover plate
Chute inlet and outlet collecting tray exports, and respectively with import collecting tray and exporting collecting tray and connecting, the import of import collecting tray and goes out
Side is stood, close to heat conduction substrate bottom side position in the outlet of mouth collecting tray positioned at the heat conduction substrate for being mounted with cover plate, avoids sputter of fluid from arriving
Battery electrode and battery connecting wire；
The heat exchanger connection import collecting tray inlet and outlet collecting tray outlet being configured at outside heat conduction substrate, forms heat exchange
The heat-conducting fluid cycle heat exchange passage of device-import collecting tray-every runner-outlet collecting tray-heat exchanger；Battery is pacified by battery
Fill through-hole wall-heat conduction substrate-runner heat exchange.
There is no perforate or the channel structure of complexity, cover plate generally plate armature, its advantage on the cover plate of the present apparatus
Substantially, cover plate is integrally unlikely to deform, and realization easy to process, while the mechanical shock resistance of cover plate is more superior.
If excessive in view of battery spacing, although good heat dispersion performance, the battery modules output work of unit volume
Rate can be too small, if spacing is too small, can influence heat dispersion again, while the mechanical shock resistance of heat conduction substrate can drop significantly
It is low, potential safety hazard be present；Therefore in the interval region of limited battery, link slot conduit (B schemes) cross section/fluid through-hole
Duct (A schemes) cross section is in be more than conduit/cell wide along the elongated of battery axial vertical, conduit/duct depth；
And in B schemes, in junction, fluid through-hole opening size is more than connection trough aperture dimension；Above-mentioned design is taking into account heat conduction base
On the premise of body mechanical shock resistance and unit volume battery modules power output, fully ensured that the heat exchange of conduit/duct and
Flow behavior, flow resistance is not only reduced, improve the mobile performance of heat-conducting fluid, make distribution of the heat-conducting fluid in fluid through-hole more
Uniformly, whole flow passage structure is also made to possess more sufficient heat exchange area.
Further, installed close to battery on the heat conduction substrate for be mounted with cover plate to monitor the first of battery temperature the temperature
Sensor is spent, the first temperature sensor quantity is less than number of batteries；In import collecting tray inlet and outlet collecting tray exit site
Install to monitor the second temperature sensor and three-temperature sensor of heat-conducting fluid temperature at import and export respectively；Circulating picture-changing
The passage of heat is provided with the fluid driven pumps that the heat-conducting fluid being used in driving cycle heat exchanger channels presses direction initialization flowing；Described
One temperature sensor, second temperature sensor, three-temperature sensor connect control unit with heat exchanger difference signal, and control is single
The automobile power cell bidirectional temp regulation and thermal runaway non-proliferation structure under member control have following two working conditions：
Battery bidirectional temp regulation working condition：When the battery temperature of the first temperature sensor feedback is higher than refrigeration threshold values, change
Hot device is in refrigerating state, and the temperature value fed back by second temperature sensor and three-temperature sensor adjusts refrigeration work consumption,
Cell heat is set to be discharged in time to the heat exchanger of outside by cycle heat exchange passage, until battery temperature is less than refrigeration setting valve
Value, heat exchanger stop refrigeration；When the battery temperature of the first temperature sensor feedback is less than heating setting threshold values, heat exchanger is in
Heating state, the temperature value fed back by second temperature sensor and three-temperature sensor adjust heats power, make circulating picture-changing
The passage of heat is to battery thermal and heating, to realize the normal work of battery smooth startup at low ambient temperatures and initial start stage
Make, until battery temperature stops heating higher than heating setting threshold values, heat exchanger；
Thermal runaway non-proliferation working condition：When the entrance fluid temperature (F.T.) of second temperature sensor monitoring is maintained at positive normal temperature
In the range of degree, and the exit fluid temperature (F.T.) of three-temperature sensor monitoring is steeply risen beyond setting warning value, shows battery
Thermal runaway, now control unit is alarmed, and the electrical connection between setting time internal cutting off battery and automobile, so as to avoid every
Temperature sensor is arranged on individual battery, causes the verbose complexity of system line, reaction triggers larger vehicle and the person not in time
Security incident.
Further, import collecting tray inlet and outlet collecting tray outlet is conical internal thread mouth NPT screw threads, import
Collecting tray inlet and outlet collecting tray connects tapered thread connector respectively in outlet, and tapered thread connector is connected by pipeline
Heat exchanger, tapered thread connector are connected with pipeline thread seal；Or the outlet of import collecting tray inlet and outlet collecting tray is logical
Flexible pipe connection heat exchanger is crossed, the import of import collecting tray and junction, outlet collecting tray outlet and the connection of flexible pipe of flexible pipe are punished
Do not sealed and fixed by fastener, so as to form the leak-free connection with exterior line, avoid the high pressure heat-conducting fluid in runner
Leak splash pollution battery electrode and battery connecting wire.
Further, the heat conduction substrate is metal aluminum alloy matrix or thermal conductive ceramic matrix, by machine cut plus
Work, mold are integrally formed or 3 D-printing is integrally formed into the block heat conduction substrate structure with hole；The cover plate is aluminium sheet,
It is fixed as one by welding or seal groove with heat conduction substrate sealing；The surface of heat conduction substrate and cover plate covers anodic oxide coating
Or organic coating, form anticorrosion, there is the electric insulation overcoat of dielectric properties.
Further, the cell outside diameter is 18~50mm, and battery length is 65~140mm, adjacent cell installation through-hole
Between spacing be not more than 10mm；In the A schemes, fluid through-hole is 1~4mm perpendicular to the size that opens up of battery axial, phase
Spacing between adjacent fluid through-hole, between battery installation through-hole and fluid through-hole is more than or equal to 1mm；In the B schemes, fluid leads to
Hole aperture is 1~4mm, the spacing between adjacent cell installation through-hole and fluid through-hole, between battery installation through-hole and link slot
More than or equal to 1mm, the setting of minimum spacing is ensuring the sealing between heat conduction substrate and cover plate, and heat conduction substrate heat conduction
Performance and mechanical consolidation performance.
Further, it is contemplated that the power of battery that different automobiles need is different, and the battery in each heat conduction substrate is simultaneously
Connection/connect is a battery modules, in parallel between multiple battery modules and/or be connected in series；The import of all battery modules converges
For chute inlet parallel on system water inlet manifold, the outlet collecting tray outlet of all battery modules is connected in parallel on system outfall sewer
On.Heat-conducting fluid after heat exchange is collected by outfall sewer, and water inlet manifold is come back to after heat exchanger exchanges heat, and is formed heat exchange and is followed
Ring.
Further, filling buffering heat-conducting layer between the battery installation through-hole and battery；The buffering heat-conducting layer is to have
Machine silica gel bond layer, epoxy cement oxidant layer or acrylic adhesive layer, to eliminate interfacial air gap, strengthen heat conduction, simultaneously
Mechanical attachment intensity is improved, reduces mechanical shock.
Further, the first temperature sensor, second temperature sensor and the three-temperature sensor are thermocouple temperature
Degree sensor, thermistor temperature sensor, thermal resistance temperature sensor or it is other have small volume, be quick on the draw, be easy to
The temperature sensor of the similar functions such as mounting arrangements.
Further, in the B schemes, it is suitable that multiple fluid through-holes in every runner by runner direction are divided into quantity
It is in parallel between fluid through-hole in forward and backward two groups, every group, connected between front and rear two groups of fluid through-holes, form remittance and more and 2 strings are more
And flow passage structure, this kind of attachment structure is on the premise of efficient battery temperature performance of control is ensured, in cycle heat exchange passage
Heat-conducting fluid pressure difference before and after heat conduction substrate is flowed through is minimum, so as to only need minimum fluid driven pumps pump work.
Further, in the A schemes, between each column fluid through-hole, or the import of each column fluid through-hole both sides is confluxed
Groove and outlet collecting tray base projections collecting tray support column.Collecting tray support column is used to support protection import collecting tray and outlet to converge
Chute, to prevent when by fierce mechanical shock, cover plate Inward deflection, cause import collecting tray and/or export collecting tray
Obstruction.
Further, in the A schemes, fluid through-hole opening cross-sectional face is square；In the B schemes, fluid through-hole hole
Road cross section is circle, and link slot conduit cross section is square, and is parallel to each other between fluid through-hole, mutually flat between link slot
OK, it is easy to processing or cast form.
The beneficial effects of the utility model are：
1st, the heat conduction substrate that duct is opened up using inside and outside portion forms heat-conduction even temperature body, and battery and fluid through-hole interval are arranged
Arrange and be closely contacted with each other by the heat conduction substrate of high thermal conductivity, eliminated because passing through air between battery and heat exchange structure
Heat conduction, the shortcomings that poor thermal conductivity, battery can by being exchanged heat between heat conduction substrate and heat-conducting fluid, so as to effectively control battery from
Body temperature, avoids thermal runaway；
2nd, when a certain battery thermal runaway occurs, heat conduction substrate has higher thermal conductivity, can expand heater as early as possible
Heat-conducting fluid is scattered to without the battery around that ignites, good cooling protection effect is played, there is excellent augmentation of heat transfer effect
Acted on battery samming.
3rd, using heat conduction substrate and the spaced mode of fluid through-hole, and outer fluid line is connected with heat exchanger
Mode, good bidirectional temp regulation can be realized：When battery temperature is higher, cell heat leads to by heat conduction substrate and cycle heat exchange
Road emits to external heat exchanger；When battery temperature is relatively low, cycle heat exchange passage can also be used and carry out battery thermal and add
Heat, so as to realize good bidirectional temp regulation.
4th, the mounting structure of heat conduction substrate and battery, it can effectively reduce, eliminate between heat conduction substrate and battery because of motion
Caused sliding, system mechanics stability and mechanical strength are improved, meanwhile, ensure battery long-term stable operation；
5th, the plate armature of cover plate, is integrally unlikely to deform, and realization easy to process, while the resistance to mechanical impact of cover plate
Performance is more superior.
6th, battery both ends are exposed on the outside of device, and device will not interfere with top circuit connection, be easily installed；Import collecting tray
Side is stood, close to heat conduction substrate bottom side position in the outlet of inlet and outlet collecting tray positioned at the heat conduction substrate for being mounted with cover plate, avoids ten thousand
Heat-conducting fluid splash is to battery electrode and connecting wire during one pipeline leakage.
Brief description of the drawings
Fig. 1 is a kind of elevation cross-sectional view (being not added with cover plate) of A scenario-frames
Fig. 2 is a kind of birds-eye perspective of B scenario-frames (being not added with cover plate, the fluid through-hole in every runner is all connected)
Fig. 3 is A-A shown in Fig. 2 to profile (capping plate)
Fig. 4 is the B-B direction profile (capping plate) shown in Fig. 2
Fig. 5 is that the B schemes shown in Fig. 2 add the stereogram after cover plate
Fig. 6 is that the birds-eye perspective of another B scenario-frames (is not added with cover plate, the fluid through-hole in every runner is all simultaneously
Connection)
Fig. 7 is the supporting covering plate structure top views of Fig. 6
Fig. 8 is that the birds-eye perspective of the third B scenario-frame (is not added with cover plate, the fluid through-hole in every runner converges and 3 simultaneously
2 strings 3 are simultaneously)
Fig. 9 is 6 runner connection diagrams being formed in parallel by 6 fluid through-holes in A schemes
Figure 10~12 are three kind runner connection diagrams of the every runner with 6 fluid through-holes in B schemes, wherein：
Figure 10 is that the fluid through-hole in every runner is all connected；
After Figure 11 is rear 5 fluid through-hole parallel connections in every runner, then connect with the 1st fluid through-hole；
After Figure 12 is divided to two groups of difference in parallel for forward and backward three fluid through-holes in every runner, it is serially connected again between two groups；
Figure 13 is that battery of the module of the battery of 4X5 arrays in the case of random thermal runaway occurs marks figure, wherein battery
III is thermal runaway battery, and I, II, IV is other batteries in module；
Figure 14 is the battery temperature cloud charts in the case of battery generation thermal runaway after 60 seconds in Figure 12
Figure 15 is that other battery center temperature are drilled with entrance fluid temperature (F.T.) with the time when thermal runaway occurs for Figure 12 batteries III
The curve map of change
Figure 16 is the pipeline connection diagram of multiple battery modules
In Fig. 1~16：1 is heat conduction substrate, and 2 be fluid through-hole, and 3 be link slot, and 4 be battery, and 5 be import collecting tray, and 6 are
Collecting tray is exported, 7 be cover plate, and 8 be import collecting tray import, and 9 be outlet collecting tray outlet, and 10 be support feet, and 11 be positioning peace
Hole is filled, 13 be collecting tray support column, and 14 be system water inlet manifold, and 15 be system outfall sewer, and 16 be second temperature sensor.
Embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings.
In embodiment 1~4, interval horizontal on square heat conduction substrate 1/vertical opens up several battery installation through-holes and stream
Body through hole 2, the exposed face of heat conduction substrate 1 are electric insulation face, coaxial one profile of tight set and battery in each battery installation through-hole
The cylinder or the battery 4 of square column type that installation through-hole hole shape matches.
Embodiment 1
It is in rectangular vertical interval tight set on square heat conduction substrate 1 in a kind of A Solution Embodiments as shown in Figure 1
Several batteries 4, it is 4 often to arrange the quantity of battery 4, and fluid through-hole 2 is axially axially mutually perpendicular to battery 4, and fluid through-hole 2 is every
The both sides of row battery 4 are in rectangular 5X3 in-line arrangements, and the fluid through-hole 2 between adjacent cell 4 shares, and the opening cross-sectional face of fluid through-hole 2 is in
Along the narrow quadrangular shape of 4 axial vertical of battery, i.e. fluid through-hole 2 is more than perpendicular to electricity along the size that opens up of the axial direction of battery 4
The axial direction of pond 4 opens up size, is taking into account the battery modules power output of heat conduction substrate mechanical shock resistance and unit volume
Under the premise of, ensure vallecular cavity/duct size of abundance, not only reduce flow resistance, improve the mobile performance of heat-conducting fluid, be also equipped with relatively filling
The heat exchange area divided.
Corresponding fluid through-hole 2 is located at the port on the relative two vertical side external surface of heat conduction substrate 1, at this to distinguishing on outer surface
Import collecting tray 5 and outlet collecting tray 6 are opened up, the both ends of fluid through-hole 2 connect with import collecting tray 5 and outlet collecting tray 6 respectively,
Formed in heat conduction substrate 1 from import collecting tray 5, fluid through-hole 2 again to the runner direction of outlet collecting tray 6；Import collecting tray
5 open up import collecting tray import 8 and outlet collecting tray outlet 9, the He of import collecting tray import 8 respectively with the outlet bottom of collecting tray 6
Outlet collecting tray exports 9 ports and exposed on another vertical side external surface of heat conduction substrate 1, close to the bottom side of heat conduction substrate 1, to avoid
Heat-conducting fluid splash is to battery electrode and battery connecting wire；The import collecting tray 5 of the both sides of each column fluid through-hole 2 and outlet
The base projections collecting tray support column 13 of collecting tray 6, collecting tray support column 13 are used to support protection import collecting tray 5 and outlet to conflux
Groove 6, to prevent the indent of cover plate 7 when by fierce mechanical shock, being covered on import collecting tray 5 and/or outlet collecting tray 6
Deform (figure cover plate is not shown), cause the obstruction of import collecting tray 5, outlet collecting tray 6 and/or fluid through-hole 2.
In this embodiment, if 4 horizontal configuration of battery, import collecting tray 5 and outlet collecting tray 6 are divided into heat conduction substrate
On 1 top side and bottom side outer surface, it now can stand side lower end in heat conduction substrate 1, open up import collecting tray close to the bottom side of heat conduction substrate 1
Import 8 and outlet collecting tray outlet 9, are connected with import collecting tray 5 and outlet collecting tray 6, to avoid heat-conducting fluid splash respectively
To battery electrode and battery connecting wire；And collecting tray support column is set in import collecting tray 5 and the outlet bottom of collecting tray 6
13。
Embodiment 2
In a kind of B Solution Embodiments as shown in Figure 2-5,3X3 is in rectangular vertical on square heat conduction substrate 1
Every 9 batteries 4 of tight set, battery 4 is axially axially parallel to each other with circular fluid through-hole 2, and each battery 4 is located at four fluids and led to
The center in hole 2, the fluid through-hole 2 between adjacent cell 4 share.
Corresponding fluid through-hole 2 is located at the port on the top side of heat conduction substrate 1 and bottom side outer surface, divides on two side external surface
Some link slots 3 are not opened up, and the conduit cross section of link slot 3 is in the rectangle along 4 axial vertical of battery, the i.e. groove of link slot 3
Road opens up width less than depth is opened up, as shown in Figure 3；It is same that the both ends of link slot 3 two fluid through-holes 2 of connection are located at heat conduction substrate 1
Port on one side external surface, fluid through-hole 2 all in heat conduction substrate 1 is connected into 4 runners in parallel, in every runner
4 fluid through-holes 2 between connect；The diameter of fluid through-hole 2 is more than the channel width of link slot 3, is taking into account heat conduction substrate resistance to mechanical
On the premise of impact property and unit volume battery modules power output, flow resistance is further reduced, improves the flowing of heat-conducting fluid
Performance, make distribution of the heat-conducting fluid in fluid through-hole more uniform.
Interval opens up import collecting tray 5 and outlet collecting tray 6, runner arrangement side by side on the bottom side outer surface of heat conduction substrate 1
Between import collecting tray 5 and outlet collecting tray 6；The one end of import collecting tray 5 is openend, and it is vertical that port exposes to heat conduction substrate 1
On side external surface, close to the bottom side of heat conduction substrate 1, be import collecting tray import 8；Outlet collecting tray 6 one end is openend, outside port
It is exposed to heat conduction substrate 1 to stand on side external surface, close to the bottom side of heat conduction substrate 1, for outlet collecting tray outlet 9；To avoid heat-conducting fluid
Splash is to battery electrode and battery connecting wire.
Two fluids that position corresponds to positioned at every runner both ends respectively that open up that import collecting tray 5/ exports collecting tray 6 lead to
Entrance point/the port of export in hole 2 simultaneously each communicates with, and forms from import collecting tray 5, runner in heat conduction substrate 1 and confluxes again to outlet
The runner direction of groove 6.
Each groove, the magnitude relationship of cross-sectional area in hole are：Import collecting tray 5 and the outlet conduit sectional area of collecting tray 6 are maximum,
The conduit sectional area of link slot 3 takes second place, and the duct sectional area of fluid through-hole 2 is minimum, also, link slot 3 opens up width and led to less than fluid
The aperture of hole 2；On the premise of heat conduction substrate mechanical shock resistance is ensured, to reduce flow resistance, pressure difference is reduced, and make fluid equal
It is even to be distributed in fluid through-hole 2.
As seen in figures 3-5, the corresponding both ends of fluid through-hole 2, are covered each by the top side of heat conduction substrate 1 and bottom side outer surface
The seal cover board 7 of one flat plate formula, formed and runner, import collecting tray 5 and the outlet on 1 liang of side external surface of heat conduction substrate are confluxed
The sealing of groove 6, the exposed face of cover plate 7 is electric insulation face, and the both ends of battery 4 are exposed to outside cover plate 7, and the bottom surrounding of heat conduction substrate 1 is set
There is support feet 10, the lower end of battery 4 is located above the bottom of support feet 10, is connected beneficial to circuit.
In this embodiment, opened up if battery installation through-hole is horizontal, import collecting tray 5 and outlet collecting tray 6 are located at
Heat conduction substrate 1 is stood on side external surface, corresponding import collecting tray 5 and outlet collecting tray 6, is stood the lower end of seal cover board 7 of side at this, is leaned on
The nearly bottom side of heat conduction substrate 1 opens up import collecting tray import 8 and outlet collecting tray outlet 9, is converged respectively with import collecting tray 5 and outlet
Chute 6 connects, and avoids heat-conducting fluid splash to battery electrode and battery connecting wire；The bottom side of heat conduction substrate 1 is additionally provided with load-bearing
Reinforcement is used to support battery weight.
Embodiment 3
In another B Solution Embodiments as shown in Figure 6,3X3 is in rectangular vertical interval on square heat conduction substrate 1
9 batteries 4 of tight set, battery 4 are axially axially parallel to each other with fluid through-hole 2, and each battery 4 is in four fluid through-holes 2
Heart position, the fluid through-hole 2 between adjacent cell 4 share；
Corresponding fluid through-hole 2 is located at the port on the top side of heat conduction substrate 1 and bottom side outer surface, divides on two side external surface
Some link slots 3 are not opened up, and the both ends of link slot 3 connect the end that two fluid through-holes 2 are located on 1 same side external surface of heat conduction substrate
Mouthful, fluid through-hole 2 all in heat conduction substrate 1 is connected into 4 runners in parallel, between 4 fluid through-holes 2 in every runner
It is in parallel.
As shown in fig. 7, in the embodiment, location and installation hole 11 is opened up on cover plate 7, is used between heat conduction substrate 1 determine
Position coordinates, during assembling with the corresponding hole aligning on heat conduction substrate 1, by welding, the mode such as cementing and heat conduction substrate 1 consolidate,
And it can be reinforced by screw.
Embodiment 4
It is tight in rectangular vertical interval on square heat conduction substrate 1 in the third B Solution Embodiments as shown in Figure 8
Battery 4 is covered, it is 5 often to arrange the quantity of battery 4, and battery 4 is axially axially parallel to each other with fluid through-hole 2, and each battery 4 is located at four
The center of fluid through-hole 2, the fluid through-hole 2 between adjacent cell 4 share；
Corresponding fluid through-hole 2 is located at the port on the top side of heat conduction substrate 1 and bottom side outer surface, divides on two side external surface
Some link slots 3 are not opened up, and the both ends of link slot 3 connect the end that two fluid through-holes 2 are located on 1 same side external surface of heat conduction substrate
Mouthful, fluid through-hole 2 all in heat conduction substrate 1 is connected into a plurality of runner in parallel, before 6 fluid through-holes 2 in every runner,
After three fluid through-holes are divided to two groups of difference in parallel afterwards, it is serially connected again between two groups, that is, converges and 3 and 2 go here and there 3 simultaneously.
Accompanying drawing 9~12 gives several fluid through-hole connected mode rough schematic views in A, B two schemes, for display side
Just, only give the diagram of 6 runners or 6 fluid through-holes 2, can be extended by this structure replication during practical operation, wherein Fig. 9
Represent that a kind of A schemes have heat conduction substrate of 6 fluid through-holes 2 directly by import collecting tray 5 and the outlet remittance of collecting tray 6 simultaneously,
Each fluid through-hole 2 is a runner；Accompanying drawing 10~12 represents that 6 runners first pass through import collecting tray 5 and outlet converges respectively
Chute 6 converges simultaneously, the type of attachment of 3 kinds of different B schemes between 6 in every runner fluid through-hole 2：It is every stream in Figure 10
6 fluid through-holes 2 in road are all connected and (converge and 6 go here and there)；It is rear 5 fluid through-hole parallel connections in every runner in Figure 11
Afterwards, then with the 1st fluid through-hole connect and (converge and 1 goes here and there 5 simultaneously)；Figure 12 is that forward and backward three fluid through-holes are divided to two in every runner
After group is in parallel respectively, (converge and 3 and 2 strings 3 simultaneously) is serially connected between two groups again, and wherein the direction of arrow represents runner direction.
By table 1 below it can be seen that：
First point, in B schemes, first converged by collecting tray and multiple fluid through-holes 2 in every runner simultaneously, are again pressed into runner
Direction is divided into parallel between the fluid through-hole 2 in suitable forward and backward two groups, every group of quantity, is connected between two groups of fluid through-holes 2
(i.e. by converge and 3 and 2 strings 3 and the remittance that expands and more and 2 strings it is more simultaneously) resultant effect of connected mode is best, maximum temperature compared with
It is low, and the heat-conducting fluid pressure difference (hereinafter referred to as " pressure difference ") at 9 liang of import collecting tray import 8 and outlet collecting tray outlet is most
It is small, it is only necessary to consume relatively low fluid driven pumps pump work.
Second point, reduce fluid through-hole diameter and highest battery temperature, the battery temperature difference are had not significant impact, but pressure difference becomes
Greatly, cause pump power to rise, through-hole diameter should be increased under the premise of ensureing to seal；And patent 201310581581.8 is without import
The situation of collecting tray and outlet collecting tray, although with the addition of lateral connection groove and use full parallel-connection structure, the maximum temperature of battery,
The temperature difference, pressure difference are not optimal.It can be seen that current heat exchange stream mode not only solves in the prior art, the interference of end cap is asked up and down
Topic, all had a clear superiority in terms of heat exchange efficiency, temperature difference control, reduction pressure difference.
(heat-conducting fluid flow：0.32L/min, battery-heating amount：80W, the heat-conducting fluid temperature at import collecting tray import 8
Degree：20 DEG C, wherein simultaneously simultaneously situation has minimum pressure difference 119Pa to 3 and 2 strings 3 to the remittance of B schemes, and battery temperature and the temperature difference are also close to minimum
It is horizontal；Battery is 18650 batteries of 65 millimeters of 18 height of diameter)
The emulation data comparison of several different B schemes of table 1 and prior art
When heat conduction substrate 1 is more than or equal to 2 times in the cross-sectional width on the axial direction of battery 4 it can be seen from table 2 below
Heat conduction substrate 1 along the height on the axial direction of battery 4 that is, when battery group pattern (5X7) is larger, using in B schemes converge and it is more
And 2 string it is more and connected mode there is the less temperature difference, when heat conduction substrate 1 is in the cross-sectional width on the axial direction of battery 4
When heat conduction substrate 1 less than 2 times is along the height on the axial direction of battery 4 that is, smaller battery group pattern (4X5), using the A scheme temperature difference
It is pratical and feasible although still higher than B scheme, it is contemplated that A schemes have relatively low extreme value temperature and pressure difference, in this case A
Scheme is preferred scheme.
(heat-conducting fluid flow：0.32L/min, battery pack heating：80W, the heat-conducting fluid temperature at import collecting tray import 8
Degree：20 DEG C, wherein A schemes 4X5 array battery situations have minimum pressure difference 82Pa；Battery is 65 millimeters of 18 height of diameter
18650 batteries)
Table 2A schemes and converge and more and 2 strings are more and the emulation data comparisons of B schemes
In the various embodiments described above, the heat exchanger connection import collecting tray import 8 and the outlet that are configured at outside heat conduction substrate 1
Collecting tray outlet 9, form the heat-conducting fluid circulation of heat exchanger-every runner of import collecting tray 5--outlet collecting tray 6- heat exchangers
Heat exchanger channels；Battery 4 is exchanged heat by battery installation through-hole inwall-heat conduction substrate 1- runners.
Installed close to battery 4 in the outside for being mounted with the heat conduction substrate 1 of cover plate 7 to monitor the first temperature of battery temperature
Sensor；9 positions are exported in import collecting tray import 8 and outlet collecting tray to install to monitor heat conduction stream at import and export respectively
The second temperature sensor 16 and three-temperature sensor of temperature.
Cycle heat exchange passage is provided with the stream that the heat-conducting fluid being used in driving cycle heat exchanger channels presses direction initialization flowing
Body transfer tube, heat-conducting fluid are the mixture of water and ethylene glycol, or heat conduction silicone oil.
First temperature sensor, second temperature sensor 16, three-temperature sensor connect control with heat exchanger difference signal
Unit processed, the automobile power cell bidirectional temp regulation and thermal runaway non-proliferation structure under control unit control have following two
Working condition：
When the battery temperature of the first temperature sensor feedback is higher than refrigeration threshold values, heat exchanger is in refrigerating state, passes through
The temperature value adjustment refrigeration work consumption of second temperature sensor 16 and three-temperature sensor feedback, makes cell heat pass through circulating picture-changing
The passage of heat is discharged in time to the heat exchanger of outside, until battery temperature stops refrigeration less than refrigeration setting threshold values, heat exchanger；When
When the battery temperature of one temperature sensor feedback is less than heating setting threshold values, heat exchanger is in heating state, passes through second temperature
The temperature value adjustment heats power of sensor 16 and three-temperature sensor feedback, makes cycle heat exchange passage to battery thermal and adds
Heat, to realize the normal work of battery smooth startup at low ambient temperatures and initial start stage, until battery temperature is higher than system
Heat setting threshold values, heat exchanger stop heating；So as to realize battery bidirectional temp regulation function.
Figure 13 is that battery of the battery modules in the case of random thermal runaway occurs marks figure, and the battery size used is 4X5
The cylindrical battery of array 18650, wherein battery III are thermal runaway battery, and I, II, IV is other batteries in module；Heat-conducting fluid stream
Amount：0.32L/min, DP=119Pa, connect using the remittance in B schemes and more and 2 string multi-parallels, the caloric value of thermal runaway battery III：
1000W, as shown in figure 14, after 60 seconds, the temperature of thermal runaway battery III rises to 394 DEG C, now adjacent cells maximum temperature by
The enclosure location of near-thermal battery out of control, its temperature is 60 DEG C, far below 150~175 DEG C of thermal runaway temperature.It can be seen that the structure sheet
Body can effectively reduce the diffusion of thermal runaway, have good cooling, obstruct the function of thermal runaway, by optimizing fluid flow, connecting
Mode, battery spacing, fluid through-hole size are connect, heat conduction, the cooling effect of heat conduction substrate can become apparent from.
Figure 15 is that other battery center temperature and fluid at import collecting tray import 8 during thermal runaway occur for Figure 13 batteries III
Temperature with time-evolution curve map.As can be seen that battery I, II, IV central temperature of neighbouring thermal runaway battery III rise speed
Performance differs, and the first temperature sensor quantity is less than number of batteries, otherwise can be reacted too late because of the verbose complexity of control circuit
When trigger larger vehicle and personal safety accident on the contrary.
Rise in view of the heat-conducting fluid temperature at outlet collecting tray outlet 9 in the case of thermal runaway in the short time aobvious
Write, and the heat-conducting fluid temperature at import collecting tray import 8 is held essentially constant, therefore can be supervised in second temperature sensor 16
On the premise of the entrance fluid temperature (F.T.) of survey is maintained in normal temperature range, the outlet monitored by three-temperature sensor converges
At launder outlet 9 heat-conducting fluid temperature whether in a short time steeply rise judge battery whether thermal runaway, the figure shows
It is shown with machine battery III under thermal runaway extreme case, once outlet collecting tray outlet 9 at heat-conducting fluid temperature by just
Ordinary water is flat when being ramping up, and control unit can make a response within the several seconds, such as cut off battery supply connection, alerting drivers electricity
Pond detonation risk.
As shown in figure 16, the parallel/series of battery 4 in each heat conduction substrate 1 are a battery modules, multiple battery modules
Between it is in parallel and/or be connected in series；The import collecting tray import 8 of all battery modules is connected in parallel on system water inlet manifold 14, institute
The outlet collecting tray outlet 9 for having battery modules is connected in parallel on system outfall sewer 15.
Claims (10)
1. a kind of automobile power cell bidirectional temp regulation and thermal runaway non-proliferation structure, it is characterised in that：
Horizontal/vertical interval opens up several battery installation through-holes and fluid through-hole (2) on square heat conduction substrate (1), leads
The exposed face of hot basal body (1) is electric insulation face, coaxial one profile of tight set and battery installation through-hole in each battery installation through-hole
The cylindrical battery (4) that hole shape matches；
Battery (4) and fluid through-hole (2) have two kinds of position allocation plans on heat conduction substrate (1)：
A, battery (4) is axially axially mutually perpendicular to fluid through-hole (2)：
Battery (4) is in rectangular in-line arrangement, and fluid through-hole (2) is in rectangular in-line arrangement in row battery (4) both sides of each column/often, adjacent electricity
Fluid through-hole (2) between pond (4) shares, and fluid through-hole (2) opening cross-sectional face is in the length along battery (4) axial vertical
Shape, i.e. fluid through-hole (2) open up size along the size that opens up of battery (4) axial direction more than perpendicular to battery (4) axial direction；
Corresponding fluid through-hole (2) is located at the port on heat conduction substrate (1) opposite sides outer surface, on two side external surface respectively
Import collecting tray (5) and outlet collecting tray (6) are opened up, fluid through-hole (2) both ends are confluxed with import collecting tray (5) and outlet respectively
Groove (6) connects, and is formed in heat conduction substrate (1) from import collecting tray (5), fluid through-hole (2) again to the stream of outlet collecting tray (6)
Road direction；
B, battery (4) is axially axially parallel to each other with fluid through-hole (2)：
Battery (4) is in rectangular in-line arrangement, and each battery (4) is positioned at the center of four fluid through-holes (2), adjacent cell (4)
Between fluid through-hole (2) share；
Corresponding fluid through-hole (2) is located at the port on heat conduction substrate (1) opposite sides outer surface, on two side external surface respectively
Some link slots (3) are opened up, link slot (3) conduit cross section is in along the elongated of battery (4) axial vertical, i.e. link slot
(3) conduit open up width be less than open up depth；Link slot (3) both ends connect two fluid through-holes (2) and are located at heat conduction substrate (1) together
Port on one side external surface；And junction fluid through-hole (2) opening size is more than link slot (3) opening size；
Fluid through-hole (2) all in heat conduction substrate (1) is connected into several columns parallel connection runner by link slot (3), in each column runner
Multiple fluid through-holes (2) between pass through that link slot (3) is in parallel and/or series connection；
Interval opens up import collecting tray (5) and outlet side by side on side heat conduction substrate (1) outer surface for opened up link slot (3)
Collecting tray (6), runner are arranged between import collecting tray (5) and outlet collecting tray (6)；Import collecting tray (5)/outlet collecting tray
(6) the position that opens up corresponds to entrance point/port of export positioned at two fluid through-holes (2) at every runner both ends and each connected respectively
It is logical, formed in heat conduction substrate (1) from import collecting tray (5), runner again to the runner direction of outlet collecting tray (6)；
Each groove, the magnitude relationship in hole are：Import collecting tray (5) and outlet collecting tray (6) conduit sectional area are maximum, link slot (3)
Conduit sectional area takes second place, and fluid through-hole (2) duct sectional area is minimum, also, link slot (3) opens up depth ﹥ fluid through-holes (2) hole
Jing≤link slot (3) opens up width；
Axially make the cross section of a heat conduction substrate (1) perpendicular to battery (4),
When the cross-sectional width is less than heat conduction substrate (1) along battery (4) axial direction 2 times of height, battery (4) and fluid through-hole
(2) A arrangements or B arrangements are pressed；When by A arrangements, fluid through-hole (2) is axially along cross-sectional width direction cloth
Put；
When the cross-sectional width is more than or equal to heat conduction substrate (1) along battery (4) axial direction 2 times of height, battery (4) and fluid
Through hole (2) presses B arrangements；
In above-mentioned A schemes or B schemes, corresponding fluid through-hole (2) both ends, divide on heat conduction substrate (1) opposite sides outer surface
Not Fu Gai one flat plate formula seal cover board (7), formed to the runner on the side external surface of heat conduction substrate (1) two, import collecting tray
(5) and outlet collecting tray (6) sealing, the exposed face of cover plate (7) is electric insulation face, and battery (4) both ends expose to cover plate (7)
Outside；
According to vertical/horizontal difference for opening up mode of battery installation through-hole, import is opened up on heat conduction substrate (1) or cover plate (7)
Collecting tray import (8) and outlet collecting tray outlet (9), are connected, import with import collecting tray (5) and outlet collecting tray (6) respectively
Collecting tray import (8) and outlet collecting tray outlet (9), which are located at, is mounted with that the heat conduction substrate (1) of cover plate (7) stands side, close to heat conduction base
Body (1) bottom side position；
It is configured at heat conduction substrate (1) outside heat exchanger connection import collecting tray import (8) and outlet collecting tray outlet (9), shape
Into the heat-conducting fluid cycle heat exchange passage of heat exchanger-- every runner of import collecting tray (5)-outlet collecting tray (6)-heat exchanger；Electricity
Pond (4) is exchanged heat by battery installation through-hole inwall-heat conduction substrate (1)-runner.
2. automobile power cell bidirectional temp regulation according to claim 1 and thermal runaway non-proliferation structure, it is characterised in that：
Install on the heat conduction substrate (1) for be mounted with cover plate (7) close to battery (4) and passed to monitor the first temperature of battery temperature
Sensor；Install to monitor heat conduction at import and export respectively in import collecting tray import (8) and outlet collecting tray outlet (9) position
The second temperature sensor (16) and three-temperature sensor of fluid temperature (F.T.)；
Cycle heat exchange passage is provided with the heat-conducting fluid being used in driving cycle heat exchanger channels and driven by the fluid of direction initialization flowing
Dynamic pump；
First temperature sensor, second temperature sensor (16), three-temperature sensor connect with heat exchanger difference signal
Control unit, the automobile power cell bidirectional temp regulation and thermal runaway non-proliferation structure under control unit control have following two
Kind working condition：
Battery bidirectional temp regulation working condition：When the battery temperature of the first temperature sensor feedback is higher than refrigeration threshold values, heat exchanger
In refrigerating state, the temperature value fed back by second temperature sensor (16) and three-temperature sensor adjusts refrigeration work consumption,
Cell heat is set to be discharged in time to the heat exchanger of outside by cycle heat exchange passage, until battery temperature is less than refrigeration setting valve
Value, heat exchanger stop refrigeration；When the battery temperature of the first temperature sensor feedback is less than heating setting threshold values, heat exchanger is in
Heating state, the temperature value fed back by second temperature sensor (16) and three-temperature sensor adjust heats power, make to follow
Ring heat exchanger channels are to battery thermal and heating, to realize the normal of battery smooth startup at low ambient temperatures and initial start stage
Work, until battery temperature stops heating higher than heating setting threshold values, heat exchanger；
Thermal runaway non-proliferation working condition：When the entrance fluid temperature (F.T.) of second temperature sensor (16) monitoring is maintained at positive normal temperature
In the range of degree, and the exit fluid temperature (F.T.) of three-temperature sensor monitoring is steeply risen beyond setting warning value, shows battery
(4) thermal runaway, now control unit is alarmed, and the electrical connection between setting time internal cutting off battery and automobile.
3. automobile power cell bidirectional temp regulation according to claim 1 and thermal runaway non-proliferation structure, it is characterised in that：Institute
It is conical internal thread mouth, import collecting tray import (8) and outlet to state import collecting tray import (8) and outlet collecting tray outlet (9)
Tapered thread connector is connected in collecting tray outlet (9) respectively, tapered thread connector connects heat exchanger, taper spiral shell by pipeline
Line connector is connected with pipeline thread seal；
Or import collecting tray import (8) connects heat exchanger with outlet collecting tray outlet (9) by flexible pipe, import collecting tray enters
The junction, outlet collecting tray outlet (9) and the junction of flexible pipe of mouth (8) and flexible pipe are fixed by fastener sealing respectively.
4. automobile power cell bidirectional temp regulation according to claim 1 and thermal runaway non-proliferation structure, it is characterised in that：Institute
It is metal aluminum alloy matrix or thermal conductive ceramic matrix to state heat conduction substrate (1), by machine cut processing, mold it is integrally formed or
Person's 3 D-printing is integrally formed into the block heat conduction substrate structure with hole；The cover plate (7) is aluminium sheet, passes through welding or close
Sealing groove is fixed as one with heat conduction substrate (1) sealing；The surface of heat conduction substrate (1) and cover plate (7) cover anodic oxide coating or
Organic coating, form anticorrosion, there is the electric insulation overcoat of dielectric properties.
5. automobile power cell bidirectional temp regulation according to claim 1 and thermal runaway non-proliferation structure, it is characterised in that：Institute
It is 18~50mm to state battery (4) external diameter, and battery length is 65~140mm, and the spacing between adjacent cell installation through-hole is not more than
10mm；
In the A schemes, open up size of the fluid through-hole (2) perpendicular to battery (4) axial direction is 1~4mm, adjacent fluid through hole
(2) spacing between, between battery installation through-hole and fluid through-hole (2) is more than or equal to 1mm；
In the B schemes, fluid through-hole (2) aperture is 1~4mm, between adjacent cell installation through-hole and fluid through-hole (2), electricity
Spacing between pond installation through-hole and link slot (3) is more than or equal to 1mm, to ensure the sealing between heat conduction substrate and cover plate,
And heat conduction substrate heat conductivility and mechanical consolidation performance.
6. automobile power cell bidirectional temp regulation according to claim 1 and thermal runaway non-proliferation structure, it is characterised in that：Institute
It is a battery modules to state battery (4) parallel/series in each heat conduction substrate (1), it is in parallel between multiple battery modules and/or
It is connected in series；The import collecting tray import (8) of all battery modules is connected in parallel on system water inlet manifold, and all battery modules go out
Mouth collecting tray outlet (9) is connected in parallel on system outfall sewer.
7. automobile power cell bidirectional temp regulation according to claim 2 and thermal runaway non-proliferation structure, it is characterised in that：Institute
The first temperature sensor, second temperature sensor (16) and three-temperature sensor are stated as thermocouple temperature sensor, temperature-sensitive electricity
Hinder temperature sensor or thermal resistance temperature sensor.
8. automobile power cell bidirectional temp regulation according to claim 1 and thermal runaway non-proliferation structure, it is characterised in that：Institute
State in B schemes, multiple fluid through-holes (2) in every runner are divided into suitable forward and backward two groups, every group of quantity by runner direction
Fluid through-hole (2) between it is in parallel, gone here and there between two groups of fluid through-holes (2), formed converge and more and 2 strings it is more and flow passage structures.
9. automobile power cell bidirectional temp regulation according to claim 1 and thermal runaway non-proliferation structure, it is characterised in that：Institute
State in A schemes, between each column fluid through-hole (2), or the import collecting tray (5) of each column fluid through-hole (2) both sides and outlet converge
Chute (6) base projections collecting tray support column (13).
10. automobile power cell bidirectional temp regulation according to claim 1 and thermal runaway non-proliferation structure, it is characterised in that：
In the A schemes, fluid through-hole (2) opening cross-sectional face is square；In the B schemes, fluid through-hole (2) opening cross-sectional face is circle
Shape, link slot (3) conduit cross section are square.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720289653.5U CN206878137U (en) | 2017-03-23 | 2017-03-23 | A kind of automobile power cell bidirectional temp regulation and thermal runaway non-proliferation structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720289653.5U CN206878137U (en) | 2017-03-23 | 2017-03-23 | A kind of automobile power cell bidirectional temp regulation and thermal runaway non-proliferation structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206878137U true CN206878137U (en) | 2018-01-12 |
Family
ID=61327113
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720289653.5U Withdrawn - After Issue CN206878137U (en) | 2017-03-23 | 2017-03-23 | A kind of automobile power cell bidirectional temp regulation and thermal runaway non-proliferation structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206878137U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106785228A (en) * | 2017-03-23 | 2017-05-31 | 上海工程技术大学 | A kind of automobile power cell bidirectional temp regulation and thermal runaway non-proliferation device |
| CN108767151A (en) * | 2018-05-03 | 2018-11-06 | 开沃新能源汽车集团有限公司 | A kind of power battery module and liquid cooling system integral structure |
| CN111883874A (en) * | 2020-06-01 | 2020-11-03 | 浙江吉利汽车研究院有限公司 | Variable thermal resistance thermal management system of battery and control method |
| CN113113696A (en) * | 2021-04-12 | 2021-07-13 | 上海工程技术大学 | Battery thermal management system |
-
2017
- 2017-03-23 CN CN201720289653.5U patent/CN206878137U/en not_active Withdrawn - After Issue
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106785228A (en) * | 2017-03-23 | 2017-05-31 | 上海工程技术大学 | A kind of automobile power cell bidirectional temp regulation and thermal runaway non-proliferation device |
| CN106785228B (en) * | 2017-03-23 | 2023-11-24 | 上海工程技术大学 | Bidirectional temperature-regulating and thermal runaway diffusion-preventing device for automobile power battery |
| CN108767151A (en) * | 2018-05-03 | 2018-11-06 | 开沃新能源汽车集团有限公司 | A kind of power battery module and liquid cooling system integral structure |
| CN108767151B (en) * | 2018-05-03 | 2021-06-22 | 开沃新能源汽车集团有限公司 | Power battery module and liquid cooling system integrated structure |
| CN111883874A (en) * | 2020-06-01 | 2020-11-03 | 浙江吉利汽车研究院有限公司 | Variable thermal resistance thermal management system of battery and control method |
| CN111883874B (en) * | 2020-06-01 | 2021-09-07 | 浙江吉利汽车研究院有限公司 | Variable thermal resistance thermal management system of battery and control method |
| CN113113696A (en) * | 2021-04-12 | 2021-07-13 | 上海工程技术大学 | Battery thermal management system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106785228A (en) | A kind of automobile power cell bidirectional temp regulation and thermal runaway non-proliferation device | |
| CN206878137U (en) | A kind of automobile power cell bidirectional temp regulation and thermal runaway non-proliferation structure | |
| CN106654450B (en) | A kind of power battery liquid cooling case in groups | |
| CN202839901U (en) | Thermal management system of power battery | |
| CN106450572A (en) | System and method for partitioned heat management based on lithium ion battery pack | |
| CN108682919B (en) | System and method for lithium ion battery pack thermal management based on phase change microcapsule suspension | |
| CN102709618B (en) | Microchannel cooling temperature equalizing system for ventilation of lithium battery | |
| CN105633509A (en) | Power battery composite heat management system and method thereof | |
| CN103715473A (en) | Thermal management system of power battery | |
| CN104617352A (en) | Heat radiation method and device for built-in electromobile battery pack | |
| CN203503756U (en) | Thermal management system of power battery based on flat plate loop heat pipes | |
| CN204333163U (en) | A kind of built-in electric automobiles power brick heat abstractor forcing liquid cooling | |
| CN109638382A (en) | A kind of micro-channel flat and the compound rectangular/soft-package battery grouping method of phase-change material | |
| CN109686887A (en) | A kind of cylinder power battery liquid cooling heat management structure for preventing thermal runaway from extending | |
| CN204424405U (en) | A kind of built-in electric automobiles power brick heat abstractor of air blast cooling | |
| CN111029681B (en) | Tube sheet type heat pipe type power battery heat management module structure | |
| CN110838607B (en) | Section gradual reduction formula liquid cooling board | |
| CN210668612U (en) | Battery module and battery package | |
| CN107919513A (en) | Battery thermal balance container, battery unit, battery module and battery thermal management system | |
| CN103367837A (en) | Power battery thermal management system based on flat loop heat pipes | |
| CN114944518A (en) | Phase-change liquid cooling coupling heat management device for power battery pack | |
| CN104466297B (en) | A kind of heat management system of vehicle lithium battery group | |
| CN207320173U (en) | A kind of rectangular cell with soakage function | |
| CN206076440U (en) | A kind of battery modules heat-exchange system and electric automobile | |
| CN101533917B (en) | Device for heating and refrigerating flowing liquid |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20180112 Effective date of abandoning: 20231124 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20180112 Effective date of abandoning: 20231124 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |