CN109037787A - A kind of manufacturing method of new-energy automobile Li-ion batteries piles structure and its 18650 batteries - Google Patents
A kind of manufacturing method of new-energy automobile Li-ion batteries piles structure and its 18650 batteries Download PDFInfo
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- CN109037787A CN109037787A CN201811040184.9A CN201811040184A CN109037787A CN 109037787 A CN109037787 A CN 109037787A CN 201811040184 A CN201811040184 A CN 201811040184A CN 109037787 A CN109037787 A CN 109037787A
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- energy automobile
- battery case
- ion batteries
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- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 26
- 238000004519 manufacturing process Methods 0.000 title claims description 7
- 230000007246 mechanism Effects 0.000 claims abstract description 23
- 238000009434 installation Methods 0.000 claims abstract description 18
- 230000004888 barrier function Effects 0.000 claims abstract description 14
- 239000003792 electrolyte Substances 0.000 claims description 12
- 238000001816 cooling Methods 0.000 claims description 9
- 238000000465 moulding Methods 0.000 claims description 9
- 239000000872 buffer Substances 0.000 claims description 7
- 239000002250 absorbent Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 238000005538 encapsulation Methods 0.000 claims description 3
- 238000005868 electrolysis reaction Methods 0.000 claims 1
- 239000007788 liquid Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 10
- 238000005516 engineering process Methods 0.000 abstract description 3
- 206010037660 Pyrexia Diseases 0.000 abstract description 2
- 238000013461 design Methods 0.000 abstract description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 7
- 230000017525 heat dissipation Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 239000006173 Good's buffer Substances 0.000 description 4
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000005611 electricity Effects 0.000 description 4
- 229910052744 lithium Inorganic materials 0.000 description 4
- 230000001681 protective effect Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000009831 deintercalation Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000007493 shaping process Methods 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
- H01M10/05—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
- H01M10/61—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
- H01M10/62—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
- H01M10/6551—Surfaces specially adapted for heat dissipation or radiation, e.g. fins or coatings
-
- 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
-
- 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
- H01M10/6561—Gases
-
- 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
-
- 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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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Battery Mounting, Suspending (AREA)
- Secondary Cells (AREA)
Abstract
The invention discloses a kind of new-energy automobile Li-ion batteries piles structures, including casing, embedding groove is equipped on the outside of the casing, the embedding groove nested inside is equipped with heat exchange unit, the casing includes bottom plate, outer housing and inner housing, the first thermal conductive cavity is equipped between the outer housing and inner housing, through equipped with the first thermal hole on the inner housing, multiple bindiny mechanisms are fixed on the inner housing inner wall, the bindiny mechanism end is fixed with installation shell, the installation enclosure interior is equipped with multiple battery cavities and inner wall is equipped with limiting slot, barrier mechanism is equipped between the battery cavities.The present invention has good heat-sinking capability and self-protection effect; the fever phenomenon of course of work generation can be successfully managed and jolting of avoiding that new-energy automobile generates during traveling acts on 18650 batteries; Li-ion batteries piles in technology compared to the prior art; design performance of the present invention is more superior, has longer service life.
Description
Technical field
The present invention relates to new energy car battery technical field, in particular to a kind of new-energy automobile Li-ion batteries piles knot
The manufacturing method of structure and its 18650 batteries.
Background technique
Lithium ion battery is a kind of secondary cell, i.e. rechargeable battery, it rely primarily on lithium ion anode and cathode it
Between it is mobile come work, in charge and discharge process, lithium ion insertion and deintercalation back and forth between two electrodes, when charging, lithium ion
From positive deintercalation, cathode is embedded in by electrolyte, and cathode is in lithium-rich state, and when electric discharge is then opposite.
Lithium system battery is divided into lithium battery and lithium ion battery, and what mobile phone and laptop used is all lithium ion battery,
And lithium ion battery includes Multiple Type, 18650 be one of which, and 18650 batteries generally use the material containing elemental lithium
It is the representative of modern high performance battery as electrode, and with the development of science and technology, is used for electric car or hybrid vehicle
18650 batteries of equal new-energy automobiles are also gradually developed, in the prior art, for new energy such as electric car or hybrid powers
18650 batteries of automobile are used generally by the way of battery pack, and these battery packs in actual use there is also
Some disadvantages, as its can not the operating status to automobile effectively adapted to, that is, require the battery pack needs of 18650 battery compositions
Possess good heat-sinking capability and self-protection effect.
Therefore, the manufacturing method of a kind of new-energy automobile Li-ion batteries piles structure and its 18650 batteries is invented to solve
The above problem is necessary.
Summary of the invention
The purpose of the present invention is to provide the manufactures of a kind of new-energy automobile Li-ion batteries piles structure and its 18650 batteries
Method, have good heat-sinking capability and self-protection effect, can successfully manage the course of work generation fever phenomenon with
And jolting of avoiding that new-energy automobile generates during traveling acts on 18650 batteries, compared to the prior art in technology
Li-ion batteries piles, the present invention design it is more reasonable, performance is more superior, have longer service life, it is above-mentioned to solve
The problem of being proposed in background technique.
To achieve the above object, the invention provides the following technical scheme: a kind of new-energy automobile Li-ion batteries piles structure,
Including casing, embedding groove is equipped on the outside of the casing, the embedding groove nested inside is equipped with heat exchange unit, and the casing includes bottom
Plate, outer housing and inner housing are equipped with the first thermal conductive cavity between the outer housing and inner housing, through being equipped with the on the inner housing
One thermal hole is fixed with multiple bindiny mechanisms on the inner housing inner wall, and the bindiny mechanism end is fixed with mounting shell
Body, the installation enclosure interior is equipped with multiple battery cavities and inner wall is equipped with limiting slot, is equipped with barrier between the battery cavities
Mechanism.
Preferably, the outer housing and inner housing are fixed at the top of bottom plate, and the inner housing is set on the inside of outer housing.
Preferably, the heat exchange unit is equipped with multiple, and the heat exchange unit is set as cooling piece, and the cooling piece includes inhaling
Hot face and radiating surface, the heat-absorbent surface are bonded with embedding groove inner wall.
Preferably, the bindiny mechanism includes the first connecting plate and the second connecting plate, and second connecting plate is set to first
Connecting plate bottom is equipped with connecting spring between first connecting plate and the second connecting plate.
Preferably, described connecting spring one end is fixedly connected with the first connecting plate and the other end is fixed with the second connecting plate
Connection.
Preferably, first connecting plate is fixedly connected with inner housing, second connecting plate and the fixed company of installation shell
It connects.
Preferably, the barrier mechanism includes baffler, and the baffler is matched with limiting slot, the baffler side wall
Upper to be equipped with the second thermal conductive cavity through equipped with the second thermal hole and top, second thermal hole is equipped with multiple, and multiple second lead
Hot hole is connected to the second thermal conductive cavity.
Preferably, the cabinet top is equipped with top cover, and both ends, which are run through, at the top of the top cover is equipped with screw, and the top cover passes through
Screw is detachably connected with casing, and the bottom base plate is equipped with buffer board, and the buffer board is made of rubber.
Preferably, 18650 batteries are equipped with inside the battery cavities, the 18650 battery outer wall is equipped with Dentate groove, described
18650 batteries include battery case, 18650 battery cores and protection circuit plate, 18650 battery core include anode, cathode, diaphragm and
Electrolyte, the Dentate groove be set to battery case on, the positive electrode, the negative electrode and the separator is set to inside battery case, it is described every
Film is set between positive electrode and negative electrode, and the electrolyte is filled between the positive electrode, the negative electrode and the separator and battery case.
The present invention also provides a kind of manufacturing methods of 18650 battery of new-energy automobile, specifically includes the following steps:
Step 1: the PVC material first in molding die under addition molten condition, progress battery case and Dentate groove
It is integrally formed, it is three to five hours cooling after the completion of pouring, so that molding die and battery case is cooled down, then removes molding die,
Battery case is taken out;
Step 2: the positive electrode, the negative electrode and the separator is assembled, so that diaphragm is between positive electrode and negative electrode, then by group
The positive electrode, the negative electrode and the separator installed is installed to inside battery case;
Step 3: electrolyte is added inside battery case, so that electrolyte is by the positive electrode, the negative electrode and the separator and battery case
Between gap completely fill out;
Step 4: protection circuit plate is installed to outside battery case, and protection circuit plate and 18650 battery cores are carried out electricity
Connection;
Step 5: encapsulation.
Technical effect and advantage of the invention:
1, when heating up in 18650 cell operations inside the battery cavities, since to be equipped with second thermally conductive for baffler side wall
Hole and top are equipped with the second thermal conductive cavity, therefore the air inside the second thermal conductive cavity will pass through the second thermal hole and 18650 electricity
Pool surface is contacted, to exchange heat with 18650 batteries, is cooled down for 18650 batteries, and simultaneously in the second thermal conductive cavity
The hot-air in portion can be scattered to casing internal by overflowing at the top of the second thermal conductive cavity, what 18650 batteries were given out by installing housing exterior walls
Heat can equally enter in casing, and be entered in the first thermal conductive cavity by passing through the first thermal hole in casing, and outer housing is first
It heats up under the action of hot-air in thermal conductive cavity, then the one side of heat exchange unit heat absorption again can siphon away the heat on outer housing, from
And invention is cooled down by the mode repeatedly to exchange heat for 18650 batteries, so that the present invention has good heat dissipation
Effect, when the barrier mechanism being fixedly connected with inner housing and installation shell can then make the present invention jolt, to install shell
Good buffer function is played, the power for the generation that avoids jolting acts directly on 18650 batteries, to provide for 18650 batteries
Good protective effect;
2, barrier mechanism can be effectively reduced with the first thermal conductive cavity in the second thermal conductive cavity while playing a role and casing is whole
The weight of body, so that overall weight of the invention is reduced, in order to more convenient in installation, disassembly and the carrying present invention;
3, by being set as Dentate groove on battery case surface in order to increase the surface area of battery case, so that
The heat dissipation effect that 18650 batteries itself have is more preferable.
Detailed description of the invention
Fig. 1 is overall structure diagram of the invention.
Fig. 2 is installation enclosure interior structural schematic diagram of the invention.
Fig. 3 is baffler side structure schematic view of the invention.
Fig. 4 is bindiny mechanism's structural schematic diagram of the invention.
Fig. 5 is whole side structure schematic view of the invention.
Fig. 6 is 18650 battery structure schematic diagrames of the invention.
In figure: 1 casing, 2 embedding grooves, 3 heat exchange units, 4 bottom plates, 5 outer housings, 6 inner housings, 7 first thermal conductive cavities, 8 first
It is thermal hole, 9 bindiny mechanisms, 10 installation shells, 11 battery cavities, 12 limiting slots, 13 barrier mechanisms, 14 bafflers, 15 second thermally conductive
Hole, 16 second thermal conductive cavities, 17 first connecting plates, 18 second connecting plates, 19 connecting springs, 20 top covers, 21 screws, 22 buffer boards,
23 18650 batteries, 24 Dentate grooves.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Embodiment 1
The present invention provides a kind of new-energy automobile Li-ion batteries piles structure as shown in figures 1 to 6, including casing 1, institutes
It states and is equipped with embedding groove 2 on the outside of casing 1,2 nested inside of embedding groove is equipped with heat exchange unit 3, and the casing 1 includes bottom plate 4, outer
Shell 5 and inner housing 6 are equipped with the first thermal conductive cavity 7, run through on the inner housing 6 and be equipped between the outer housing 5 and inner housing 6
First thermal hole 8 is fixed with multiple bindiny mechanisms 9 on 6 inner wall of inner housing, and 9 end of bindiny mechanism is fixed with
Shell 10 is installed, multiple battery cavities 11 are equipped with inside the installation shell 10 and inner wall is equipped with limiting slot 12, the battery
Barrier mechanism 13 is equipped between chamber 11.
As can be seen from the above embodiments: when heating up in 18650 battery, 23 course of work inside battery cavities 11, due to barrier
14 side wall of plate is equipped with the second thermal hole 15 and top is equipped with the second thermal conductive cavity 16, therefore the air inside the second thermal conductive cavity 16 is just
It can be contacted by 23 surface of the second battery of thermal hole 15 and 18650, be 18650 to exchange heat with 18650 batteries 23
Battery 23 cools down, and the hot-air inside the second thermal conductive cavity 16 can be scattered to casing 1 by overflowing at the top of the second thermal conductive cavity 16 simultaneously
Inside, 18650 batteries 23 can equally be entered in casing 1 by installing the heat that 10 outer wall of shell gives out, and by wearing in casing 1
It crosses the first thermal hole 8 to enter in the first thermal conductive cavity 7, outer housing 5 heats up under the action of hot-air in the first thermal conductive cavity 7, so
The one side that heat exchange unit 3 absorbs heat afterwards again can siphon away the heat on outer housing 5, so that the mode repeatedly to exchange heat is passed through in invention
Cool down for 18650 batteries 23, so that the present invention has good heat dissipation effect, with inner housing 6 and installation shell 10
When the barrier mechanism 13 being fixedly connected with can then make the present invention jolt, good buffer function is played for installation shell 10,
The power of generation of avoiding jolting acts directly on 18650 batteries 23, to provide good protective effect for 18650 batteries 23.
Embodiment 2
Further, in above-described embodiment 1, the outer housing 5 is fixed at 4 top of bottom plate with inner housing 6, described
Inner housing 6 is set to 5 inside of outer housing.
Further, in above-described embodiment 1, the heat exchange unit 3 be equipped with it is multiple, the heat exchange unit 3 is set as making
Cold, the cooling piece includes heat-absorbent surface and radiating surface, and the heat-absorbent surface is bonded with 2 inner wall of embedding groove.
Further, in above-described embodiment 1, the bindiny mechanism 9 includes the first connecting plate 17 and the second connecting plate 18,
Second connecting plate 18 is set to 17 bottom of the first connecting plate, the company of being equipped between first connecting plate 17 and the second connecting plate 18
Spring 19 is connect, plays good buffer function for installation shell 10, the power for the generation that avoids jolting acts directly on 18650 batteries 23
On, to provide good protective effect for 18650 batteries 23.
Further, in above-described embodiment 1, described 19 one end of connecting spring be fixedly connected with the first connecting plate 17 and
The other end is fixedly connected with the second connecting plate 18.
Further, in above-described embodiment 1, first connecting plate 17 is fixedly connected with inner housing 6, and described second connects
Fishplate bar 18 is fixedly connected with installation shell 10.
Further, in above-described embodiment 1, the barrier mechanism 13 includes baffler 14, the baffler 14 and limit
Position slot 12 matches, and is equipped with the second thermal conductive cavity 16 through equipped with the second thermal hole 15 and top on 14 side wall of baffler,
Second thermal hole 15 be equipped with it is multiple, multiple second thermal holes 15 are connected to the second thermal conductive cavity 16.
Further, in above-described embodiment 1, top cover 20 is equipped at the top of the casing 1, the 20 top both ends of top cover are passed through
It is equipped with screw 21, the top cover 20 is detachably connected by screw 21 with casing 1, and 4 bottom of bottom plate is equipped with buffer board 22,
The buffer board 22 is made of rubber, in order to play certain cushioning effect.
Further, in above-described embodiment 1,18650 batteries 23,18650 electricity are equipped with inside the battery cavities 11
23 outer wall of pond is equipped with Dentate groove 24, and 18650 battery 23 includes battery case, 18650 battery cores and protection circuit plate, described
18650 battery cores include anode, cathode, diaphragm and electrolyte, and the Dentate groove 24 is set on battery case, the anode, cathode
It is set to inside battery case with diaphragm, the diaphragm is set between positive electrode and negative electrode, and the electrolyte is filled in anode, cathode
Between diaphragm and battery case.
Embodiment 3
The present invention also provides a kind of manufacturing methods of 18650 battery of new-energy automobile, specifically includes the following steps:
Step 1: the PVC material under molten condition is added first in molding die, carries out battery case and Dentate groove 24
Integrated molding, cooling three to five hours after the completion of pouring, so that molding die and battery case is cooled down, then remove shaping mould
Tool, battery case is taken out;
Step 2: the positive electrode, the negative electrode and the separator is assembled, so that diaphragm is between positive electrode and negative electrode, then by group
The positive electrode, the negative electrode and the separator installed is installed to inside battery case;
Step 3: electrolyte is added inside battery case, so that electrolyte is by the positive electrode, the negative electrode and the separator and battery case
Between gap completely fill out, formed 18650 battery cores;
Step 4: protection circuit plate is installed to outside battery case, and protection circuit plate and 18650 battery cores are carried out electricity
Connection;
Step 5: encapsulation.
Working principle of the present invention:
Referring to the heat exchange unit 3 that Figure of description 1, attached drawing 2, attached drawing 3 and 4,18650 battery 23 of attached drawing are in embedding groove 2
It is powered, when heating up in 18650 battery, 23 course of work inside battery cavities 11, since 14 side wall of baffler is equipped with second
Thermal hole 15 and top are equipped with the second thermal conductive cavity 16, therefore the air inside the second thermal conductive cavity 16 will pass through the second thermal hole
15 are contacted with 18650 battery, 23 surface, to exchange heat with 18650 batteries 23, are cooled down for 18650 batteries 23,
And the hot-air inside the second thermal conductive cavity 16 can be scattered to inside casing 1 by overflowing at the top of the second thermal conductive cavity 16 simultaneously, 18650 batteries 23
Can be entered in casing 1 by installing the heat that gives out of 10 outer wall of shell equally, and by passed through in casing 1 first thermal hole 8 into
Enter into the first thermal conductive cavity 7, outer housing 5 heats up under the action of hot-air in the first thermal conductive cavity 7, and then heat exchange unit 3 absorbs heat
One side the heat on outer housing 5 can be siphoned away again so that invention by the mode that repeatedly exchanges heat be 18650 batteries 23 into
Row cooling, so that the present invention has good heat dissipation effect, the barrier being fixedly connected with inner housing 6 and installation shell 10
When mechanism 13 can then make the present invention jolt, good buffer function is played for installation shell 10, the power for the generation that avoids jolting
It acts directly on 18650 batteries 23, to provide good protective effect for 18650 batteries 23;
Referring to Figure of description 1 and attached drawing 2, the second thermal conductive cavity 16 and the first thermal conductive cavity 7 can be with while playing a role
The weight of 1 entirety of barrier mechanism 13 and casing is effectively reduced, so that overall weight of the invention is reduced, in order to install, tearing open
It unloads and carries and is more convenient when the present invention;
Referring to Figure of description 6, increase battery case by being set as Dentate groove 24 on battery case surface
Surface area, so that the heat dissipation effect that 18650 batteries 23 have in itself is more preferable.
Finally, it should be noted that the foregoing is only a preferred embodiment of the present invention, it is not intended to restrict the invention,
Although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art, still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features,
All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in of the invention
Within protection scope.
Claims (10)
1. a kind of new-energy automobile Li-ion batteries piles structure, including casing (1), it is characterised in that: set on the outside of the casing (1)
Have embedding groove (2), embedding groove (2) nested inside is equipped with heat exchange unit (3), and the casing (1) includes bottom plate (4), shell
Body (5) and inner housing (6) are equipped with the first thermal conductive cavity (7) between the outer housing (5) and inner housing (6), the inner housing (6)
Above through the first thermal hole (8) are equipped with, it is fixed with multiple bindiny mechanisms (9) on inner housing (6) inner wall, the connection machine
Structure (9) end is fixed with installation shell (10), is equipped with multiple battery cavities (11) and inner wall inside the installation shell (10)
It is equipped with limiting slot (12), barrier mechanism (13) is equipped between the battery cavities (11).
2. a kind of new-energy automobile Li-ion batteries piles structure according to claim 1, it is characterised in that: the outer housing
(5) it is fixed at inner housing (6) at the top of bottom plate (4), the inner housing (6) is set on the inside of outer housing (5).
3. a kind of new-energy automobile Li-ion batteries piles structure according to claim 1, it is characterised in that: the heat exchange is single
First (3) are equipped with multiple, and the heat exchange unit (3) is set as cooling piece, and the cooling piece includes heat-absorbent surface and radiating surface, the suction
Hot face is bonded with embedding groove (2) inner wall.
4. a kind of new-energy automobile Li-ion batteries piles structure according to claim 1, it is characterised in that: the connection machine
Structure (9) includes the first connecting plate (17) and the second connecting plate (18), and second connecting plate (18) is set to the first connecting plate (17)
Bottom is equipped with connecting spring (19) between first connecting plate (17) and the second connecting plate (18).
5. a kind of new-energy automobile Li-ion batteries piles structure according to claim 4, it is characterised in that: the connection bullet
Spring (19) one end is fixedly connected with the first connecting plate (17) and the other end is fixedly connected with the second connecting plate (18).
6. a kind of new-energy automobile Li-ion batteries piles structure according to claim 4, it is characterised in that: described first connects
Fishplate bar (17) is fixedly connected with inner housing (6), and second connecting plate (18) is fixedly connected with installation shell (10).
7. a kind of new-energy automobile Li-ion batteries piles structure according to claim 1, it is characterised in that: the barrier machine
Structure (13) includes baffler (14), and the baffler (14) matches with limiting slot (12), is passed through on baffler (14) side wall
Be equipped with the second thermal hole (15) and top and be equipped with the second thermal conductive cavity (16), second thermal hole (15) be equipped with it is multiple, it is more
A second thermal hole (15) is connected to the second thermal conductive cavity (16).
8. a kind of new-energy automobile Li-ion batteries piles structure according to claim 1, it is characterised in that: the casing
(1) top is equipped with top cover (20), and both ends, which are run through, at the top of the top cover (20) is equipped with screw (21), and the top cover (20) passes through screw
(21) it is detachably connected with casing (1), bottom plate (4) bottom is equipped with buffer board (22), and the buffer board (22) is by rubber system
At.
9. a kind of new-energy automobile Li-ion batteries piles structure according to claim 1, it is characterised in that: the battery cavities
(11) internal to be equipped with 18650 batteries (23), 18650 battery (23) outer wall is equipped with Dentate groove (24), 18650 battery
It (23) include battery case, 18650 battery cores and protection circuit plate, 18650 battery core includes anode, cathode, diaphragm and electrolysis
Liquid, the Dentate groove (24) be set to battery case on, the positive electrode, the negative electrode and the separator is set to inside battery case, it is described every
Film is set between positive electrode and negative electrode, and the electrolyte is filled between the positive electrode, the negative electrode and the separator and battery case.
10. a kind of manufacturing method of 18650 battery of new-energy automobile, which is characterized in that specifically includes the following steps:
Step 1: the PVC material under molten condition is added first in molding die, carries out battery case and Dentate groove (24)
It is integrally formed, it is three to five hours cooling after the completion of pouring, so that molding die and battery case is cooled down, then removes molding die,
Battery case is taken out;
Step 2: the positive electrode, the negative electrode and the separator is assembled, so that diaphragm between positive electrode and negative electrode, then will assemble
The positive electrode, the negative electrode and the separator be installed to inside battery case;
Step 3: electrolyte is added inside battery case, so that electrolyte will be between the positive electrode, the negative electrode and the separator and battery case
Gap completely fill out, formed 18650 battery cores;
Step 4: protection circuit plate is installed to outside battery case, and protection circuit plate and 18650 battery cores are electrically connected
It connects;
Step 5: encapsulation.
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CN112713310A (en) * | 2020-12-22 | 2021-04-27 | 惠州市永能电子有限公司 | Efficient lithium battery production process and lithium battery |
CN113611965A (en) * | 2021-07-21 | 2021-11-05 | 东莞力朗电池科技有限公司 | Cylindrical lithium ion battery with protection mechanism |
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