CN105870509A - Lithium battery pack assembly - Google Patents
Lithium battery pack assembly Download PDFInfo
- Publication number
- CN105870509A CN105870509A CN201610308554.7A CN201610308554A CN105870509A CN 105870509 A CN105870509 A CN 105870509A CN 201610308554 A CN201610308554 A CN 201610308554A CN 105870509 A CN105870509 A CN 105870509A
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- China
- Prior art keywords
- housing
- drain sheet
- samming
- drain
- lithium battery
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/613—Cooling or keeping cold
-
- 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
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/058—Construction or manufacture
-
- 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
- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6567—Liquids
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
-
- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Secondary Cells (AREA)
Abstract
The invention discloses a lithium battery pack assembly and aims to solve the temperature rise problem of existing batteries. The lithium battery pack assembly comprises battery cores, uniform temperature components and a shell, the battery cores and the uniform temperature components are stacked at intervals, each uniform temperature component comprises a left shell, a right shell, a liquid guide piece, a liquid incoming pipe and a liquid outgoing pipe, each left shell and the corresponding right shell are of a symmetric structure, a cavity inside each liquid guide piece serves as a cooling liquid passage, the edge of each liquid guide piece is embedded in a joint of the corresponding left shell and the corresponding right shell, a polyvinyl adhesive groove is formed around the liquid guide piece to form an adhesive joint, uniform temperature fields are formed between two sides of each liquid guide piece and the corresponding left shell as well as the corresponding right shell respectively, turbulence holes are formed in two side faces of each liquid guide piece, and each shell and the corresponding liquid guide piece are connected through four liquid outgoing pipes and one liquid incoming pipe to form a cooling medium flowing passage. By using the lithium battery pack assembly, flowing speed of a cooling medium in the uniform temperature components can be controlled to achieve the objective of controlling inside temperature of the battery cores.
Description
Technical field
This invention relates to new forms of energy lithium battery bag assembly technical field, and specifically a kind of temperature control effect is more preferably
Lithium battery bag assembly.
Background technology
Lithium battery bag assembly is the core component of electric automobile, and the height of its performance directly affects electric automobile
The quality of performance, wherein the general volume of lithium battery bag assembly is relatively big, occupies the position, chassis at vehicle, and it dissipates
Thermal 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, by
Being generally lithium battery in lithium battery bag assembly, as a example by lithium battery, its internal optimal discharge and recharge temperature can not be high
In 140 DEG C, external temperature, not above 80 DEG C, otherwise will reduce service life and the discharge and recharge effect of battery
Really.
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, reduce further
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 bag assembly, for lithium battery bag
The temperature control of assembly, especially lowers the temperature to its major surfaces, solves to bring owing to lithium battery bag assembly heats up
Service life reduction, the problem such as blast.
The technical solution adopted for the present invention to solve the technical problems is:
Lithium battery bag assembly, including battery, samming assembly and housing, wherein, described battery is flat board
Shape, described battery and samming assembly are spaced superposition and are 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 1 millimeter 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 3 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 is corresponding
One return port, the inner surface at left and right housing is provided with the second partition projection, and described second cuts off projection
Cutting off projection one_to_one corresponding with first to be arranged in pairs, the described second height cutting off projection occupies between samming field
/ 3rd of gap, described first partition projection and second is cut off projection and samming field is divided into four districts jointly
Territory；
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.
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 diameter in described flow-disturbing hole, in 1-3 millimeter, arranges one for every square centimeter.
Described flow-disturbing hole is divided into middle, upper and lower totally three groups, and the outlet in flow-disturbing hole is arranged towards closest
The inclined-plane of return port.
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 reaches to control the purpose of battery internal 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 samming field, the especially existence in flow-disturbing hole make cooling medium to be distributed more uniformly
And acting directly in inner walls so that thermo parameters method is more uniform, improves cooling-down effect.
Described drain sheet is engineering plastics moulding, and left and right housing is metalwork, the steel plastic composite structure of formation
Cost can be reduced.
Modularity, it is simple to produce and assemble.
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 (outside) of drain sheet.
Fig. 8 is the axonometric chart (inner side) 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, 2391 breach, 24 feed tubes, 25 drain pipes, 3 samming fields, 41 first seal
Circle, 42 second sealing rings, 4 safe pressure accumulation pressure relief devices, 5 radiators.
Detailed description of the invention
As shown in Figure 1 to 11, battery is cooled down by, coolant poor for lithium battery bag assembly even temperature effect
The defects such as uneven and cooling system structure is complicated, the protection main body of the present invention is as follows:
Exploitation is a kind of lithium battery bag assembly with even temperature effect, so that lithium battery bag assembly keeps
Within the scope of basicly stable temperature, and by undulated control in the range of reasonably.
The lithium battery bag assembly structure that the present invention provides simultaneously is as follows:
Including battery 1, samming assembly 2 and shell, wherein battery 1 is tabular, such as lithium battery
Battery, the electrode of battery therein is integrated in side, is typically designed as tabular or bulk, and
Be provided with electrode thereon, according to position arrangement, below emphasis samming assembly is carried out detailed analysis.By
Emphasis in the present invention does not lies in the improvement of battery, 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 bag assembly, further
Ground affects its security performance, such as spontaneous combustion.
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, has two symmetrical sheet combination to form, wherein have
One inner chamber, for cooling passage 231, the clearance control 1 to 3 millimeter of above-mentioned cooling passage 231 it
Between, drain sheet 23 generally convex shape, surrounding carries out edge sealing, and the prominence on top is provided with inlet
232, inlet is set to circular hole, is used for installing feed tube, and utilizes sealing ring to carry out anti-drain process, it is noted that
Leak free design herein requires relatively low, 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 seals from interior survey, forms preferable sealing effectiveness, places 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 3
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.
Being evenly arranged with flow-disturbing hole 234 on the two sides, middle part of drain sheet 23 respectively, wherein flow-disturbing hole is interior
The most penetrating, and flow-disturbing hole leans out to samming field, moves closer to the housing (left shell or right shell body) in outside
Inwall, directly acts on coolant and needs the point of cooling, improve cooling-down effect.With reference to Fig. 8 and Fig. 7, its
In, the diameter in flow-disturbing hole in 1-3 millimeter, arranges one for every square centimeter, formed horizontal and vertical all
The array of cloth.Further, for reaching optimum efficiency, above-mentioned flow-disturbing hole is being grouped, in being divided into
Between, upper and lower totally three groups, wherein, the outlet in flow-disturbing hole is arranged towards the inclined-plane 235 of return port, favorably
Backflow in coolant.Further, according to the difference of position, the diameter in middle flow-disturbing hole is bigger, and two
The diameter in the flow-disturbing hole of side 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 the TRANSFER BY PULSATING FLOW of impact type, forms disturbance, and takes away surface heat,
Solve the problem of coolant idle loop in the existing type of cooling, improve cooling effect, owing to flow-disturbing hole 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 bag assembly.
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 requirement in the case of a high temperature of lithium battery bag assembly, especially
It is can to reduce lithium battery bag assembly to 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 (6)
1. lithium battery bag assembly, including battery (1), samming assembly (2) and housing, wherein, described
Battery (1) is tabular, and described battery and samming assembly are spaced superposition and are contained in enclosure interior,
It is characterized 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, welded seam (221) is continuously along the surrounding edge expansion of housing, wherein, institute
State left shell (21), right shell body (22) is stainless steel stamping parts, and is designed as outer male structure laterally
(211), and be provided with on lateral surface one for the groove (212) blocking battery, and left and right
Four pairs of corners of housing are the return port for installing drain pipe, and a pair of crown center is for installing feed tube
Pilot hole；
Described drain sheet (23) internal chamber is cooling passage (231), described cooling passage (231)
Gap between 1 millimeter to 3 millimeter, 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 is provided with in the surrounding of drain sheet
Polyethylene glue groove (233) forms glue-line, described drain sheet (23) both sides shape respectively and between left and right housing
Becoming samming field (3), described samming field (3) spacing is between 3 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, wherein three points that height is samming field (3) gap of the first partition projection (237)
One of, and the corresponding return port in each region, the inner surface at left and right housing is provided with the second partition
Projection (238), described second cuts off projection is arranged in pairs with the first partition projection (238) one_to_one corresponding, institute
State that the height of the second partition projection occupies the gap of samming field (3) 1/3rd, described first cuts off projection
Cut off projection with second and jointly samming field is divided into four regions；
Four second positions that cross cutting off projection (238) are provided with a shunting disk (239), shunting
Dish is an overshooting shape and is correspondingly arranged with described centre bore (234), cuts off between projection in each two second
Shunting disk 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.
Lithium battery bag assembly the most according to claim 1, it is characterised in that in described samming assembly
The cooling medium composition of perfusion is by the 150N tri-class base oil that mass ratio is 95-99%, the diphenol of 1.0-5.0%
Base propane, 0.005% methyl-silicone oil or methyl-silicone oil ester, 0.05% tricresyl phosphate, 0.1% vulcanizes poly-isobutyl
The sulphosuccinates composition of alkene, demulsifier T1001 or LZ5957 of 100PPM, and 0.2-0.3%.
Lithium battery bag assembly the most according to claim 1, it is characterised in that the electrode of described battery
It is positioned at lateral.
Lithium battery bag assembly the most according to claim 1, it is characterised in that described drain sheet (23)
For engineering plastics moulding.
Lithium battery bag assembly the most according to claim 1, it is characterised in that described flow-disturbing hole straight
Footpath, in 1-3 millimeter, arranges one for every square centimeter.
Lithium battery bag assembly the most according to claim 1, it is characterised in that described flow-disturbing hole is divided into
Middle, upper and lower totally three groups, and the outlet in flow-disturbing hole is arranged towards the inclined-plane closest to return port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610308554.7A CN105870509A (en) | 2016-05-10 | 2016-05-10 | Lithium battery pack assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610308554.7A CN105870509A (en) | 2016-05-10 | 2016-05-10 | Lithium battery pack assembly |
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| Publication Number | Publication Date |
|---|---|
| CN105870509A true CN105870509A (en) | 2016-08-17 |
Family
ID=56630781
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610308554.7A Pending CN105870509A (en) | 2016-05-10 | 2016-05-10 | Lithium battery pack assembly |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023246229A1 (en) * | 2022-06-24 | 2023-12-28 | 江苏英飞源智慧能源有限公司 | Liquid cooling device |
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Application publication date: 20160817 |