CN105895991A - Lithium battery power pack cooling system - Google Patents
Lithium battery power pack cooling system Download PDFInfo
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- CN105895991A CN105895991A CN201610308933.6A CN201610308933A CN105895991A CN 105895991 A CN105895991 A CN 105895991A CN 201610308933 A CN201610308933 A CN 201610308933A CN 105895991 A CN105895991 A CN 105895991A
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- Prior art keywords
- lithium battery
- liquid
- cooling system
- drain
- battery power
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- 238000001816 cooling Methods 0.000 title description 47
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title description 26
- 229910052744 lithium Inorganic materials 0.000 title description 26
- 239000002826 coolant Substances 0.000 description 20
- 239000007788 liquid Substances 0.000 description 16
- 238000007789 sealing Methods 0.000 description 15
- 230000000694 effects Effects 0.000 description 12
- 238000005520 cutting process Methods 0.000 description 6
- 239000003292 glue Substances 0.000 description 6
- 239000004698 Polyethylene Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- -1 polyethylene Polymers 0.000 description 5
- 229920000573 polyethylene Polymers 0.000 description 5
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 4
- 238000009825 accumulation Methods 0.000 description 4
- 230000004087 circulation Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 238000005192 partition Methods 0.000 description 4
- 229920002545 silicone oil Polymers 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- 238000000465 moulding Methods 0.000 description 3
- 210000003205 muscle Anatomy 0.000 description 3
- XKZQKPRCPNGNFR-UHFFFAOYSA-N 2-(3-hydroxyphenyl)phenol Chemical compound OC1=CC=CC(C=2C(=CC=CC=2)O)=C1 XKZQKPRCPNGNFR-UHFFFAOYSA-N 0.000 description 2
- 229920002367 Polyisobutene Polymers 0.000 description 2
- ULUAUXLGCMPNKK-UHFFFAOYSA-N Sulfobutanedioic acid Chemical class OC(=O)CC(C(O)=O)S(O)(=O)=O ULUAUXLGCMPNKK-UHFFFAOYSA-N 0.000 description 2
- YSMRWXYRXBRSND-UHFFFAOYSA-N TOTP Chemical compound CC1=CC=CC=C1OP(=O)(OC=1C(=CC=CC=1)C)OC1=CC=CC=C1C YSMRWXYRXBRSND-UHFFFAOYSA-N 0.000 description 2
- 239000002199 base oil Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 229920006351 engineering plastic Polymers 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 239000001294 propane Substances 0.000 description 2
- 239000000565 sealant Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 230000002277 temperature effect Effects 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000000306 component Substances 0.000 description 1
- 239000000110 cooling liquid Substances 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- BGOFCVIGEYGEOF-UJPOAAIJSA-N helicin Chemical compound O[C@@H]1[C@@H](O)[C@H](O)[C@@H](CO)O[C@H]1OC1=CC=CC=C1C=O BGOFCVIGEYGEOF-UJPOAAIJSA-N 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000010412 perfusion Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 230000001839 systemic circulation Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/613—Cooling or keeping cold
-
- 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
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
- H01M10/6557—Solid parts with flow channel passages or pipes for heat exchange arranged between the cells
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Secondary Cells (AREA)
Abstract
The invention discloses a lithium battery power pack cooling system, which is used for solving the warming problem of an existing battery pack. The lithium battery power pack cooling system comprises a lithium battery pack, a liquid pump, a radiator and a liquid conveying pipe, wherein the lithium battery pack comprises battery cells, temperature equalizing assemblies and a shell; the battery cells and the temperature equalizing assemblies are mutually superposed at intervals; each temperature equalizing assembly comprises a left shell, a right shell, a liquid guide sheet, a liquid inlet pipe and liquid outlet pipes; each left shell and the corresponding right shell are in a symmetrical structure; a cooling liquid channel is arranged in an internal chamber of each liquid guide sheet; the edges of each liquid guide sheet are embedded into joints of the corresponding left shell and right shell; temperature equalizing fields are formed between one of two sides of each liquid guide sheet and the corresponding left shell, and between the other side and the corresponding right shell respectively; center holes and spiral liquid distribution slots are formed in two side surfaces of each liquid guide sheet; and the shells and the liquid guide sheets are connected through four liquid outlet pipes and one liquid inlet pipe to form a cooling medium flow channel. By the lithium battery power pack cooling system, the flow velocity of a cooling medium in each temperature equalizing assembly can be controlled, so that the target of controlling the internal temperature of the corresponding battery cell is achieved.
Description
Technical field
This invention relates to new forms of energy lithium battery power bag cooling system technical field, specifically a kind of temperature control
Better lithium battery power bag cooling system.
Background technology
Lithium battery is the core component of electric automobile, and the height of its performance directly affects electric automobile performance
Quality, wherein the general volume of lithium battery is relatively big, occupies the position, chassis at vehicle, and its radiating effect is very poor.
Present battery of the most more making great efforts typically uses natural cooling, air-cooled or water-cooled mode to carry out, with
As a example by lithium battery, its internal optimal discharge and recharge temperature not above 140 DEG C, external temperature not above 80 DEG C,
Otherwise will reduce service life and the discharge and recharge effect of battery.
Wherein, three kinds of each have their own advantages of radiating mode, natural cooling is low due to cooling effectiveness, progressively by
Eliminating, air-cooled structure is simple, is the current market mainstream, and water-cooled is complicated due to structure, but its cooling effect
Rate and controllability are the highest, and application is less at present, use it has been found that current water-cooled is typically all
The recirculated water of big flow carries out forcing cooling to battery, or carries out forcing cooling to the housing of battery bag,
In this course, cooling water completes a systemic circulation often in all battery, during this,
As a example by 100 pieces of battery, cooling starts and the temperature-difference of cooling medium at end is more than tens degree,
Make the temperature of different parts in battery bag the most unbalanced, this phenomenon can cause be one another in series, in parallel
Appearance individual variation between battery, and then the performance that impact is overall.
Further, since the design of existing cooling duct is all simple sandwich design, cooling medium is in flowing
During, can not accomplish cold medium acts directly on the application point needing cooling, drop further
The low cooling-down effect to cooling point, namely cooling-down effect is not ideal enough.
Summary of the invention
In order to solve the deficiencies in the prior art, the present invention provides a kind of lithium battery power bag cooling system, is used for
The temperature control of lithium battery power bag cooling system, especially lowers the temperature to its major surfaces, solves due to lithium electricity
Pond power bag cooling system heat up bring service life reduction, the problem such as blast.
The technical solution adopted for the present invention to solve the technical problems is:
Lithium battery power bag cooling system, including lithium battery bag, liquid pump, radiator and liquid transmission pipeline,
Wherein, described lithium battery bag include battery, samming assembly and housing, described battery and samming assembly that
This interval superposition is also contained in enclosure interior, it is characterised in that
Described samming assembly includes left shell, right shell body, drain sheet and feed tube, drain pipe, wherein, left,
Right shell body is symmetrical structure, and forms, by welding, the housing that an inside is airtight, and welded seam is continuously along shell
The surrounding edge of body is launched, and wherein, described left shell, right shell body are stainless steel stamping parts, and to
Outside is designed as outer male structure, and be provided with on lateral surface one for the groove blocking battery, and
Four pairs of corners of left and right housing are the return port for installing drain pipe, and a pair of crown center is for installing
The pilot hole of feed tube；
Described drain sheet internal chamber is cooling passage, and the gap of described cooling passage is at 2 millimeters to 3
Between Hao meter, described drain sheet generally surrounding seal convex shape, and be provided with in the prominence on top into
Liquid mouth, inlet is set to install the circular hole of feed tube, and the edge of described drain sheet is embedded in left and right housing
Seam in, and the surrounding of drain sheet be provided with polyethylene glue groove form glue-line, described drain sheet both sides are divided
Forming samming field between other and left and right housing, described samming field spacing is between 6 to 9 millimeters；
Being evenly arranged with some flow-disturbing holes on the two sides, middle part of drain sheet respectively, wherein flow-disturbing hole is inside and outside
Penetrating, and flow-disturbing hole leans out to samming field, near left shell or the right shell body inwall in outside；
Surrounding on described drain sheet is provided with the through hole that return port described with on housing is corresponding, described through hole
Non-penetrating with cooling passage；
Two outsides of described drain sheet are respectively arranged with the first partition muscle of four arcs, and four first are cut off muscle
The appearance of drain sheet is divided into upper left (A1), lower-left (A2), upper right (A3), bottom right (A4) four districts
Territory, wherein the first height cutting off projection occupies 1/3rd of gap, samming field, and each region correspondence one
Individual return port, the inner surface at left and right housing is provided with the second partition projection, described second cut off projection with
First cuts off projection one_to_one corresponding is arranged in pairs, and the described second height cutting off projection occupies the gap of samming field
1/3rd, described first cut off projection and second cut off projection jointly samming field is divided into four regions；
Four second positions that cross cutting off projection are provided with a shunting disk, and shunting disk is an overshooting shape
And be correspondingly arranged with described centre bore, cut off in each two second and be provided with breach on the shunting disk between projection；
Described housing and drain sheet are attached by four drain pipes and a feed tube, and at feed tube and
Drain pipe uses sealing ring to seal with housing, drain sheet contact site, is inserted into drain sheet at feed tube
One section in cavity is provided with inlet opening, and one section in drain pipe is inserted into drain sheet cavity is provided with out liquid
Hole.
Described feed tube is connected liquid pump and radiator with drain pipe outer circulation.
Further, the width at the narrowest place, described spiral cloth liquid bath hole is at 1 millimeter, and the width of the widest part is 3
Millimeter.
Further, in described samming assembly, the cooling medium composition of perfusion is 95-99% by mass ratio
150N tri-class base oil, the diphenol propane of 1.0-5.0%, 0.005% methyl-silicone oil or methyl-silicone oil ester, 0.05%
Tricresyl phosphate, 0.1% sulfurized polyisobutylene, demulsifier T1001 or LZ5957 of 100PPM, and
The sulphosuccinates composition of 0.2-0.3%.
Further, the electrode of described battery is positioned at laterally.
Further, described drain sheet is engineering plastics moulding.
The invention has the beneficial effects as follows:
The setting of samming assembly, can take away the heat that battery produces, it is possible to in samming assembly
The flowing velocity of cooling medium is controlled by, and the coolant in each housing is to be substantially at same temperature section
, coolant passes in and out simultaneously so that the temperature within battery bag is basically identical, reaches to control inside battery
The purpose of temperature.
Low cost of manufacture, good reliability, the housing that wherein outside is combined with battery uses sheet metal part,
Heat conductivility is good, and carries out Pressure Welding connection at periphery, and coordinates the sealant sealing of drain sheet surrounding,
Form obturation effect, mode cooling medium zero leakage.
Housing itself has certain elasticity, and combines the space of samming field, can meet heat between battery
The requirement of swollen shrinkage.
The existence of the existence of samming field, especially flow-disturbing makes cooling medium to be distributed also more uniformly
Act directly in inner walls so that thermo parameters method is more uniform, improves cooling-down effect.
Accompanying drawing explanation
Fig. 1 is the schematic diagram (front) of the present invention.
Fig. 2 is the schematic diagram (side) of the present invention.
Fig. 3 is the sectional view of the present invention.
Fig. 4 is the tightening state schematic diagram of the present invention.
Fig. 5 is the axonometric chart of left shell (right shell body).
Fig. 6 is the structure of Fig. 5.
Fig. 7 is the axonometric chart (front) of drain sheet.
Fig. 8 is the axonometric chart (cutting open) of drain sheet.
Fig. 9 is the partial enlarged drawing of the present invention.
Figure 10 is the schematic diagram of air bag.
Figure 11 is the battery heat removal system in new forms of energy car.
In figure: 1 battery, 2 samming assemblies, 21 left shells, 211 outer male structure, 212 grooves, 22 is right
Housing, 221 weld seams, 222 perforation, 23 drain sheets, 231 cooling passages, 232 inlets, 233 gather
Ethylene glue groove, 234 flow-disturbing holes, 235 inclined-planes, 236 through holes, 237 first cut off projection, and 238 second cut off
Projection, 239 shunting disks, 24 feed tubes, 25 drain pipes, 3 samming fields, 41 first sealing rings, 42 second
Sealing ring, 4 safe pressure accumulation pressure relief devices, 5 radiators.
Detailed description of the invention
As shown in Figure 1 to 11, coolant poor for lithium battery power bag cooling system even temperature effect is to electricity
Pond core inhomogeneous cooling is even and cooling system constructs the defects such as complicated, and the protection main body of the present invention is as follows:
Exploitation is a kind of lithium battery power bag cooling system with even temperature effect, so that lithium battery moves
Power bag cooling system is maintained within the scope of basicly stable temperature, and by undulated control in the range of reasonably.
The lithium battery power bag cooling system structure that the present invention provides simultaneously is as follows:
Lithium battery power bag cooling system, including lithium battery bag, liquid pump, radiator and liquid transmission pipeline,
Radiator is for dissipating internal heat, and wherein, described lithium battery bag includes battery 1, samming assembly
2 and shell, wherein battery 1 is tabular, such as lithium battery core, the electrode collection of battery therein
Become in side, be typically designed as tabular or bulk, and be provided with electrode thereon, pacify according to position
Row, below emphasis samming assembly is carried out detailed analysis.Owing to the emphasis of the present invention does not lies in battery
Improve, therefore no details will be provided to the structure of battery.
Lithium battery is adding up due to internal temperature in charge and discharge process, has bigger temperature rise phenomenon,
Especially during the Accelerating Traveling of Automobiles, can form bigger intensification especially, the phenomenon of this intensification exists
Outer can cash the slightly increase into battery volume, the expansion of housing, be tested by thermometer, temperature
Can rise to 100 degree even more than, this intensification can cause the service life reduction of lithium battery power bag cooling system,
Affect its security performance, such as spontaneous combustion further.
Embodiment one, is making during samming assembly 2, needs to cause battery 1 temperature-rise period
Deformation, expansion are considered, and comprehensively utilize its deformation, reach effectively to control the process purpose that temperature heats up.
Samming assembly 2 includes left shell 21, right shell body 22, drain sheet 23 and feed tube 24, drain pipe
25, wherein, left and right housing is symmetrical structure, and by fastening and the welded molding of surrounding, forms one
Individual complete housing, is described in detail as a example by left shell 21, and left shell 21 uses stainless steel
Sheet stamping forms, and is designed as outer male structure 211 laterally, for coordinating with drain sheet, with reference to Fig. 5,
And be provided with on lateral surface one for the groove 212 blocking battery, at the outside self-contained battery of housing
Core, the electrode of described battery is positioned at laterally, and left and right housing welds after fastening by the way of Pressure Welding two-by-two
Forming one, wherein weld seam 221 launches along the surrounding edge of housing, and forms five on left and right housing
To perforation 222, be wherein positioned at four pairs of corners for four return ports, a pair of crown center is pilot hole,
Coordinate with feed tube in assembly technology, be respectively used to feed tube and drain pipe are installed.
Drain sheet 23, uses engineering plastics moulding, wherein has an inner chamber, for cooling passage 231,
Between the clearance control 2 to 3 millimeters of above-mentioned cooling passage 231, drain sheet 23 generally convex shape,
Surrounding carries out edge sealing, and the prominence on top is provided with inlet 232, and inlet is set to circular hole, is used for
Feed tube is installed, and utilizes sealing ring to carry out anti-drain process, it is noted that leak free design herein requires relatively low,
It is not absolute leakproof, uses General Purpose Rubber packing ring.
The edge that above-mentioned drain sheet 23 surrounding is formed after just merging with above-mentioned left and right housing overlaps,
Formed and coincide, and the surrounding of drain sheet is provided with polyethylene glue groove 233, pre-in above-mentioned polyethylene glue groove
First filled polyethylene glue, during assembling, makes polyethylene glue melt by the way of heating, and shape
Becoming glue-line, the edge of drain sheet 23 is embedded in the seam of left and right housing, can be to a left side by the way of heating
The seam of right shell body, from inner seal, forms preferable sealing effectiveness, prevents liquid leakage.By above-mentioned
Sealant sealing and Pressure Welding double sealing, it is ensured that the leakage probability of junction circumference less than ten thousand/,
Ensure the use safety of battery component.
Drain sheet 23 both sides respectively and form samming field 3 between left and right housing, samming field herein is in space
It is a slight thin seam in form, and samming field 3 spacing between drain sheet and left and right housing controls 6
Between 9 millimeters, it is namely about 3 times of cooling passage.
Meanwhile, the existence of samming field, it is also possible that external shell has certain extendable room, can make up
Space requirement under battery thermal expansion condition.
The two sides, middle part of drain sheet 23 are evenly arranged with flow-disturbing hole 234, wherein flow-disturbing hole 234 respectively
It is inside and outside penetrating, and flow-disturbing hole leans out to samming field, move closer to housing (left shell or the right side in outside
Housing) inwall, directly coolant is acted on and need the point of cooling, improve cooling-down effect.With reference to Fig. 8 and
Fig. 7, wherein, the diameter in flow-disturbing hole in 1-3 millimeter, arranges one for every square centimeter, formed laterally and
The most uniform array.Further, for reaching optimum efficiency, above-mentioned flow-disturbing hole is being grouped,
It is divided into middle, upper and lower totally three groups, wherein, the outlet in flow-disturbing hole is arranged towards the inclined-plane 235 of return port,
Be conducive to the backflow of coolant.Further, according to the difference of position, the diameter in middle flow-disturbing hole is bigger,
The diameter in the flow-disturbing hole of both sides is smaller.
Surrounding on above-mentioned drain sheet is provided with the through hole 236 corresponding with four perforation on housing, for
Pilot hole, this through hole 236 is not through with above-mentioned cooling passage 231, is independent, is used only for dress
Join.
23 two outsides of above-mentioned drain sheet are respectively arranged with four first and cut off muscle 237, become spiral protrusion shape,
For the appearance of drain sheet being divided into upper left A1, lower-left A2, upper right A3, tetra-regions of bottom right A4, its
In first cut off projection 237 height occupy about 1/3rd of gap, samming field 3, and each region
A corresponding return port, refluxes more uniform.
The corresponding inner surface at left and right housing is provided with the second partition projection 238, this projection with first every
Disconnected projection 238 move towards identical, and one_to_one corresponding is arranged in pairs, and the second height cutting off projection occupies samming
About 1/3rd of the gap of field 3, the first partition projection and second is cut off projection and is jointly said above-mentioned samming
Field is divided into four regions, can effectively control cooling medium route, improves external hull surface cooling nearby
And flow rate, improve cooling effect.
Four second positions that cross cutting off projection are provided with a shunting disk 239, and shunting disk is one and dashes forward
Play shape, circle, cut off in each two second and on the shunting disk between projection, be provided with breach 2391, be used for
Guide the direction of shunting.
Above-mentioned housing and drain sheet are attached by four drain pipes 25 and a feed tube 24, and are entering
Liquid pipe and drain pipe use sealing ring to seal with housing, drain sheet contact site, wherein, and sealing ring bag
Include the first sealing ring 41 and the second sealing ring 42, the first sealing ring 41 is arranged on outside housing with enter,
Between drain pipe, the second sealing ring 42 is arranged between drain sheet and liquid inlet and outlet pipe, and inserts at feed tube
One section in drain sheet cavity is provided with inlet opening, a section in drain pipe 25 is inserted into drain sheet cavity
Being provided with liquid outlet, coolant is at feed tube, drain sheet inner chamber, spiral cloth liquid bath, samming field and drain pipe
Being taken away by the heat of battery after circulation, form cooling, in the process, coolant is in flow-disturbing hole 234
Under the control of trend, coolant presents spiral helicine flowing, forms disturbance, and takes away surface heat, solves
The problem of coolant idle loop in the existing type of cooling, improves cooling effect, owing to flow-disturbing hole 234 is basic
Cover at the front and back of drain sheet 23, housing to outside can carry out direct-injection, cold coolant simultaneously
Act directly in the left and right inner walls in outside so that housing is directly lowered the temperature, and then drive battery quick
Cooling so that coolant samming formed here field, it is to avoid coolant is during cooling down battery
The problem that inhomogeneous cooling is even.Improve cooling effect and efficiency.
Above-mentioned battery and samming assembly are spaced superposition, are finally arranged in a metal shell, its
In above-mentioned metal shell be ganoid metal shell, formed one, the namely lithium alleged by the present invention
Battery power bag cooling system.
Feed tube 24 and drain pipe 25 outer circulation use liquid pump and radiating mode, and wherein liquid pump uses miniature liquid
Pump, the radiator 5 that heat radiation carries with automobile connects, and utilizes automobile radiators to be dissipated by heat, ginseng
Examine Figure 10.
For ensureing the security performance of system, outer circulation is provided with a safe pressure accumulation pressure relief device 4, should
Device is a pressure accumulation air bag, has self-relieving function, reduce coolant under extraneous extreme shock
Pressure itself, safer.
Safe pressure accumulation pressure relief device 4 structure is as follows: include that air bag, air bag are arranged in return line, i.e. with
Flowline is attached, and air bag is arranged on vehicle front, and is bundled by flexible-belts such as rubber strips
Fixing, form a kind of flexible installing, the positive upside of air bag is provided with a relief valve,
Above-mentioned cooling liquid uses low viscosity miscella, has explosion-proof effect, and its composition includes: by quality
Than the 150N tri-class base oil for 95-99%, the diphenol propane of 1.0-5.0%, 0.005% methyl-silicone oil or first
Base silicone oil ester, 0.05% tricresyl phosphate, 0.1% sulfurized polyisobutylene, the demulsifier T1001 of 100PPM or
LZ5957, and the sulphosuccinates composition of 0.2-0.3%, this special miscella has good high temperature
Stability, has explosion-proof performance, it is possible to meet the use in the case of a high temperature of lithium battery power bag cooling system
Requirement, especially can reduce lithium battery power bag cooling system and dodge the danger of quick-fried initiation.
Embodiment described above is only to be described the preferred embodiment of the present invention, not to this
Bright scope is defined, on the premise of designing spirit without departing from the present invention, and relevant technical staff in the field
Various deformation and improvement to the present invention, all should expand in protection domain as determined by claims of the present invention.
Claims (9)
1. lithium battery power bag cooling system, including lithium battery bag, liquid pump, radiator and liquid delivery tube
Road, wherein, described lithium battery bag includes battery (1), samming assembly (2) and housing, described battery
It is spaced superposition with samming assembly and is contained in enclosure interior, it is characterised in that
Described samming assembly (2) includes left shell (21), right shell body (22), drain sheet (23) and enters
Liquid pipe (24), drain pipe (25), wherein, left and right housing is symmetrical structure, and by welding formation one
The housing that individual inside is airtight, described welded seam (221) is continuously along the surrounding edge expansion of housing, wherein,
Described left shell (21), right shell body (22) are stainless steel stamping parts, and are designed as outer umbo laterally
Structure (211), and be provided with on lateral surface one for the groove (212) blocking battery, and left,
Four pairs of corners of right shell body are the return port for installing drain pipe, and a pair of crown center is for installing feed liquor
The pilot hole of pipe；
Described drain sheet (23) internal chamber is cooling passage (231), described cooling passage (231)
Gap between 2 millimeters to 3 millimeters, described drain sheet (23) generally surrounding seal convex shape,
And inlet (232) it is provided with in the prominence on top, inlet is set to install the circular hole of feed tube, institute
The edge stating drain sheet (23) is embedded in the seam of left and right housing, and described drain sheet (23) both sides are divided
Forming samming field (3) between other and left and right housing, described samming field (3) spacing is between 6 to 9 millimeters；
The two sides, middle part of drain sheet (23) are evenly arranged with some flow-disturbing holes (234) respectively, wherein
Flow-disturbing hole is inside and outside penetrating, and flow-disturbing hole (234) lean out to samming field, near outside left shell or
Right shell body inwall；
Surrounding on described drain sheet is provided with the through hole (236) that return port described with on housing is corresponding, institute
State through hole (236) the most through with cooling passage (231)；
(23) two outsides of described drain sheet be respectively arranged with four arcs first partition muscle (237), four
Individual first cuts off muscle is divided into upper left (A1), lower-left (A2), upper right (A3), bottom right by the appearance of drain sheet
(A4) four regions, and the corresponding return port in each region, the inner surface at left and right housing is arranged
Having the second partition projection (238), described second cuts off projection becomes with the first partition projection (238) one_to_one corresponding
To setting, described first partition projection and second is cut off projection and samming field is divided into four regions jointly；
Four second positions that cross cutting off projection are provided with a shunting disk (239), and shunting disk is one
Overshooting shape and being correspondingly arranged with described centre bore (234), cuts off the shunting disk between projection in each two second
On be provided with breach (2391)；
Described housing and drain sheet are attached by four drain pipes (25) and a feed tube (24),
And use sealing ring to seal, at feed tube at feed tube and drain pipe with housing, drain sheet contact site
One section that is inserted in drain sheet cavity is provided with inlet opening, is inserted into drain sheet cavity at drain pipe (25)
Interior one section is provided with liquid outlet；
Described feed tube (24) is connected liquid pump and radiator with drain pipe (25) outer circulation.
Lithium battery power bag cooling system the most according to claim 1, it is characterised in that described all
In temperature assembly, the cooling medium composition of perfusion is by the 150N tri-class base oil that mass ratio is 95-99%,
The diphenol propane of 1.0-5.0%, 0.005% methyl-silicone oil or methyl-silicone oil ester, 0.05% tricresyl phosphate,
0.1% sulfurized polyisobutylene, demulsifier T1001 or LZ5957 of 100PPM, and the succinic acid of 0.2-0.3%
Sulfonated ester forms.
Lithium battery power bag cooling system the most according to claim 1, it is characterised in that described electricity
The electrode of Chi Xin is positioned at laterally.
Lithium battery power bag cooling system the most according to claim 1, it is characterised in that described in lead
Liquid sheet (23) is engineering plastics moulding.
Lithium battery power bag cooling system the most according to claim 1, it is characterised in that described in lead
The surrounding of liquid sheet is provided with polyethylene glue groove (233), and is formed melted between drain sheet and left and right housing
Glue seals.
Lithium battery power bag cooling system the most according to claim 1, it is characterised in that follow outside
The pipeline of ring accesses safe pressure accumulation pressure relief device (4).
Lithium battery power bag cooling system the most according to claim 6, it is characterised in that safety stores
Pressure pressure relief device (4) is air bag.
Lithium battery power bag cooling system the most according to claim 1, it is characterised in that described in disturb
The diameter of discharge orifice, in 1-3 millimeter, arranges one for every square centimeter.
Lithium battery power bag cooling system the most according to claim 1, it is characterised in that described in disturb
Discharge orifice is divided into middle, upper and lower totally three groups, and the outlet in flow-disturbing hole be arranged towards closest to return port oblique
Face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610308933.6A CN105895991A (en) | 2016-05-10 | 2016-05-10 | Lithium battery power pack cooling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610308933.6A CN105895991A (en) | 2016-05-10 | 2016-05-10 | Lithium battery power pack cooling system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105895991A true CN105895991A (en) | 2016-08-24 |
Family
ID=56703471
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610308933.6A Withdrawn CN105895991A (en) | 2016-05-10 | 2016-05-10 | Lithium battery power pack cooling system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105895991A (en) |
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| CN106329024A (en) * | 2016-10-13 | 2017-01-11 | 安徽巨大电池技术有限公司 | Lithium battery pack |
| CN111712402A (en) * | 2017-12-01 | 2020-09-25 | 实迈公司 | Thermal management system |
| CN116845433A (en) * | 2023-07-06 | 2023-10-03 | 上海思格源智能科技有限公司 | Energy storage battery heating control method and system |
| CN116885341A (en) * | 2023-09-06 | 2023-10-13 | 江苏永昇空调有限公司 | Ship energy storage high-precision temperature control system |
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| CN116885341A (en) * | 2023-09-06 | 2023-10-13 | 江苏永昇空调有限公司 | Ship energy storage high-precision temperature control system |
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