CN109980147A - The exhaust packaging method of underwater power source - Google Patents
The exhaust packaging method of underwater power source Download PDFInfo
- Publication number
- CN109980147A CN109980147A CN201910228926.9A CN201910228926A CN109980147A CN 109980147 A CN109980147 A CN 109980147A CN 201910228926 A CN201910228926 A CN 201910228926A CN 109980147 A CN109980147 A CN 109980147A
- Authority
- CN
- China
- Prior art keywords
- gas vent
- shell
- power source
- lid
- underwater power
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J4/00—Adhesives based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond ; adhesives, based on monomers of macromolecular compounds of groups C09J183/00 - C09J183/16
- C09J4/06—Organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond in combination with a macromolecular compound other than an unsaturated polymer of groups C09J159/00 - C09J187/00
-
- 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
Abstract
The invention discloses a kind of exhaust packaging methods of underwater power source, comprising: battery pack S1, is passed through sealant pouring and sealing inside the shell, forms cell sealing body after battery pack encapsulating；S2, lid is assembled on shell；Lid includes cover board and sealing plate equipped with gas vent；S3, the space between lid and cell sealing body is vacuumized by gas vent, forms vacuum chamber；S4, the periphery dot encapsulation glue in gas vent will be fixed on the cover board in the conjunction to gas vent of sealing plate lid and by sealant, vacuum chamber closed.The exhaust packaging method of underwater power source of the invention, space between cell sealing body and shell is vacuumized and avoids so that interior of shell is vacuum environment the heat generated when the big multiplying power discharging of in the presence of air battery pack that air pressure in shell is made to increase and deform and lose waterproof action.Meanwhile also solving the problems, such as battery long-term work in high temperature, high pressure, the sealed environment of high humidity, improve the service life and security performance of battery.
Description
Technical field
The present invention relates to power technique fields more particularly to a kind of exhaust packaging methods of underwater power source.
Background technique
With the development of science and technology, undersea search and the development of underwater equipment are more and more common, most of underwater equipment needs
Power supply is supported, the demand of underwater power source is thus brought.But there is very high want to external environment when Li-ion batteries piles work
It asks, therefore underwater power source must have fabulous sealing effect.To solve this problem, our company has used process for filling colloid to make battery pack
Seal is formed with shell, significant ground waterproof and heat dissipation effect is obtained, greatly improves yields.However, being needed when encapsulating
Reserve the assembly space of cover board and shell.For this purpose, there are air in the space reserved between cover board and casting glue.When battery pack is big
When multiplying power discharging works, the heat of generation increases shell body temperature, causes the air pressure of enclosure interior reserved space to increase, forces
Sealing shell deformation.Under stress, gap is generated at shell and cover board encapsulation, eventually leading to leak makes entire battery report
It is useless.Simultaneously as enclosure interior temperature is high when battery pack works, and housing outer surface temperature in being immersed in water is low, in shell
The outer existing temperature difference makes the intracorporal air of shell reach dew-point temperature, and then the vapor in enclosure interior air is liquefied as small water
Pearl, make the work of entire battery pack high temperature, high pressure, high humidity environment in, significantly reduce the service life of battery, or even give
User brings serious security risk.
In addition, the combined process of power supply plastic casing mainly has buckle encapsulation to combine at present, screw connects, ultrasonic welding is molten
The modes such as conjunction, gluing bonding.Wherein, buckle encapsulation, which is combined, connects the function without waterproof with screw, and to mold requirement compared with
It is big to occupy shell space for height；Ultrasonic welding to plastic material, the requirements of the factors such as ultrasonic line structure design and device parameter compared with
After ultrasonic fusion, there are incomplete fusion region between interface, the effect being fully sealed is not achieved in height；Gluing adhesion technique is to mold
And the requirement of sealed in unit is low, encapsulation operation is simple, but the selection of glue needs depending on the material of plastic casing.Mesh
Preceding quick setting cement majority in the market is only to fixed adhesive effect is temporarily played, with being extended using the time for battery, interface
The viscose glue ageing failure at place, is not achieved the effect of long term seal.
Summary of the invention
The technical problem to be solved in the present invention is that in view of the above-mentioned defects in the prior art, providing one kind and avoiding shell swollen
The exhaust packaging method of swollen and interior of shell condensed water underwater power source.
The technical solution adopted by the present invention to solve the technical problems is: providing a kind of exhaust encapsulation side of underwater power source
Method, comprising the following steps:
S1, battery pack is passed through into sealant pouring and sealing inside the shell, forms cell sealing body after the battery pack encapsulating；
S2, lid is assembled on shell；
The lid includes cover board and sealing plate compatible with the gas vent equipped with gas vent；
S3, the space between the lid and cell sealing body is vacuumized by the gas vent, makes the sky
Between form vacuum chamber；
S4, the periphery dot encapsulation glue in the gas vent, will be in sealing plate lid conjunction to the gas vent and by close
Sealing is fixed on the cover board, and vacuum chamber is closed.
Preferably, in step S3, the vacuum degree of the vacuum chamber is -0.2MPa to -0.8MPa.
Preferably, the cover board is equipped with annular groove backwards to the surface of the shell, and the annular groove is located at described
The periphery of gas vent is simultaneously connected with the gas vent；
In step S4, the sealing plate is covered on the gas vent in the annular groove with the cooperation of its periphery.
Preferably, the bottom surface of the annular groove is equipped with the glue groove of indent, and the periphery of the sealing plate is equipped with and the glue
The compatible annular protrusion of slot；
In step S4, the sealant is beaten in the glue groove；The annular protrusion of the sealing plate is embedded into the glue groove
It is interior.
Preferably, in step S3, cover is installed on the housing, by the gas vent, the lid and cell sealing
Space-closed between body, the cover inner space pass through the sky between the gas vent and the lid and cell sealing body
Between be connected to form a closed chamber；Connection vacuum evacuation device vacuumizes the chamber interior.
Preferably, in step S3, the vacuum-pumping tube for connecting the vacuum evacuation device is pierced into the cover, described to vacuumize
Device is connected to the chamber by the vacuum-pumping tube and vacuumizes to the chamber.
Preferably, in step S4, gluing pipe is pierced into above the cover to the gas vent, in the outer of the gas vent
All dot encapsulation glue.
Preferably, the sealant includes that raw material and its mass fraction are as follows: 0.10-0.25 parts of acrylate, engineering plastic
1.0-2.0 parts of material, 7-13 parts of plastics sticker and 80-90 parts of solvent.
Preferably, the engineering plastics include PC and/or ABS；The plastics sticker include DMC, EAC, resin and
Synthetic rubber；Solvent includes acetone.
Preferably, the sealant includes that raw material and its mass fraction are as follows: 0.15 part of acrylate, engineering plastics 1.5
Part, 10 parts of plastics sticker and 88.35 parts of solvent.
Beneficial effects of the present invention: before closure, the space between cell sealing body and shell is vacuumized
Air therein is discharged, shell seal is got up on the cover board by the conjunction of sealing plate lid again in the case where keeping vacuum, so that shell
Inside is vacuum environment, and avoiding the heat generated when the big multiplying power discharging of battery pack works increases enclosure interior air pressure, is caused
Housing distortion leak.The existing temperature difference inside and outside shell is also avoided simultaneously, the vapor in enclosure interior air is caused to be liquefied as
Water droplet influences the service life of entire battery pack.
In addition, sealing plate passes through specific sealant firm adhesion on the cover board, the ingredient and proportion basis of the sealant
The material specific configuration of plastic shell becomes a kind of specific chemical welding compound, can dissolve cover board and sealing plate surface
Part both makes to combine together, even if for a long time under water using will not be detached from.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples, in attached drawing:
Fig. 1 is the schematic diagram of the section structure of the underwater power source of one embodiment of the invention when being vented encapsulation.
Specific embodiment
For a clearer understanding of the technical characteristics, objects and effects of the present invention, now control attached drawing is described in detail
A specific embodiment of the invention.
In conjunction with Fig. 1, the exhaust packaging method of the underwater power source of one embodiment of the invention, comprising the following steps:
S1, battery pack is passed through into sealant pouring and sealing inside the shell, forms cell sealing body 20 after battery pack encapsulating.
Shell 10 is the shell of open-top, and battery pack is out of, open top merging shell 10.When encapsulating, colloid filling
To between 10 inner wall of battery pack and shell and the certain altitude above battery pack is filled into, battery pack is wrapped up, by battery unit package
It is fixed in shell 10, forms cell sealing body 20 with battery pack.The periphery and bottom surface of cell sealing body 30 are interior with shell 10
Wall and bottom surface hold tightly together.The colloid of encapsulating has the characteristic of insulation, thermally conductive etc..
S2, lid 30 is assembled on shell 10.
Wherein, lid 30 includes cover board 31 and sealing plate 32.(such as medium position) is equipped with gas vent 33 on cover board 31, uses
In exhaust.Sealing plate 32 is adapted with gas vent 33, for closing gas vent 33.
The open top of shell 10 is closed by lid 30 on shell 10, so that lid 30 is cooperatively formed with shell 10
The closed shell of underwater power source.It is spaced between cell sealing body 20 in the inner surface and shell 10 of lid 30, so that
A space 40 between cell sealing body 20 and lid 30 is formed in shell 10.
In the present embodiment, cover board 31 is equipped with annular groove 34 backwards to the surface of shell 10, and annular groove 34 is located at exhaust
The periphery in hole 33 is simultaneously connected with gas vent 33.
As needed, the bottom surface of annular groove 34 can also further be equipped with the glue groove 35 of indent, and the periphery of sealing plate 32 is set
There is annular protrusion 36 compatible with glue groove 35.
S3, the space 40 between lid 30 and cell sealing body 20 is vacuumized by gas vent 33, makes lid 30
Space 40 between cell sealing body 20 forms vacuum chamber.The vacuum degree of the vacuum chamber is -0.2MPa to -0.8MPa, can be excellent
Choosing -0.6MPa.
Before vacuumizing, first cover 50 is installed on the top of shell 10, by gas vent 33, lid 30 and cell sealing body
Space 40 between 20 is closed, and 50 inner space of cover passes through between gas vent 33 and lid 30 and cell sealing body 20 at this time
Space 40 is connected to form a closed chamber.Connection vacuum evacuation device vacuumizes chamber interior, makes chamber Interior Space
Gas is discharged to form vacuum environment, meanwhile, the space 40 between lid 30 and cell sealing body 20 to form vacuum also by vacuumizing
Room.
Specifically, it when vacuumizing, can be pierced into cover 50 by vacuum-pumping tube 51, vacuum-pumping tube 51 is connected to vacuum means
It sets, vacuum evacuation device is made to be connected with the chamber in cover 50 to be vacuumized.
Sealing plate 32 is covered conjunction to gas vent 33 and passed through by S4, the periphery dot encapsulation glue (not shown) in gas vent 33
Sealant is fixed on cover board 31, and vacuum chamber is closed.
When gluing, the gluing pipe 52 of gluing device is pierced into cover 50 to the top of gas vent 33, in the outer of gas vent 33
All dot encapsulation glue.It pierces into cover 50 by assembly tool 60 to close the lid of sealing plate 32 onto gas vent 33, and will by sealant
Sealing plate 32 cements on cover board 31, and gas vent 33 is closed.Sealing plate 32 and cover board 31 form lid 30 in shell 10
On shell 10 is closed, form closed shell.
Specifically, when gluing, by sealing glue point in the glue groove 35 of the annular groove 34 of 33 periphery of gas vent.Sealing plate 32
When covering conjunction, sealing plate 32 is covered on gas vent 33 in annular groove 34 with the cooperation of its periphery, the annular on sealing plate 32
Protrusion 36 is embedded into glue groove 35, so that the sealant in glue groove 35 cements in annular protrusion and the cover board 31 where glue groove 35
Together.
Above-mentioned step S4 remains the vacuum degree after vacuumizing during carrying out, thus after the closing of shell 10,
Interior space 40 is vacuum environment, prevents cell sealing body 30 from expanding.
After completing the whole installation of cover board 30, cover 50 can be removed from shell 10, complete the exhaust of underwater power source
Encapsulation.
Further, in the present invention, sealant is different glue from the colloid of encapsulating.
Sealant includes that raw material is as follows: acrylate, engineering plastics, plastics sticker and solvent；The quality of each raw material
Number is as follows: 0.10-0.25 parts of acrylate, 1.0-2.0 parts of engineering plastics, 7-13 parts of plastics sticker and solvent 80-90
Part.
Wherein, engineering plastics include PC (polycarbonate) and/or ABS；Plastics sticker include DMC (dimethyl carbonate),
EAC (ethyl acetate), resin and synthetic rubber.Acetone can be selected in solvent.
In a kind of preferred embodiment of sealant, comprising: 0.15 part of acrylate, 1.5 parts of engineering plastics, plastics are viscous
10 parts of agent and 88.35 parts of solvent.
Sealant in the present invention can dissolve 32 surface portion of cover board 31 and sealing plate, make two as chemical welding compound
Person holds tightly together to form one, even if for a long time under water using will not be detached from, it is ensured that the waterproofness of underwater power source
Energy and service life.
The above description is only an embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalent structure or equivalent flow shift made by bright specification and accompanying drawing content is applied directly or indirectly in other relevant skills
Art field, is included within the scope of the present invention.
Claims (10)
1. a kind of exhaust packaging method of underwater power source, which comprises the following steps:
S1, battery pack is passed through into sealant pouring and sealing inside the shell, forms cell sealing body after the battery pack encapsulating；
S2, lid is assembled on shell；
The lid includes cover board and sealing plate compatible with the gas vent equipped with gas vent；
S3, the space between the lid and cell sealing body is vacuumized by the gas vent, makes the space shape
At vacuum chamber；
S4, the periphery dot encapsulation glue in the gas vent close the sealing plate lid on the gas vent and passing through sealant
It is fixed on the cover board, vacuum chamber is closed.
2. the exhaust packaging method of underwater power source according to claim 1, which is characterized in that in step S3, the vacuum
The vacuum degree of room is -0.2 MPa to -0.8MPa.
3. the exhaust packaging method of underwater power source according to claim 1, which is characterized in that the cover board is backwards to described outer
The surface of shell is equipped with annular groove, and the annular groove is located at the periphery of the gas vent and is connected with the gas vent；
In step S4, the sealing plate is covered on the gas vent in the annular groove with the cooperation of its periphery.
4. the exhaust packaging method of underwater power source according to claim 3, which is characterized in that the bottom surface of the annular groove
The periphery of glue groove equipped with indent, the sealing plate is equipped with annular protrusion compatible with the glue groove；
In step S4, the sealant is beaten in the glue groove；The annular protrusion of the sealing plate is embedded into the glue groove.
5. the exhaust packaging method of underwater power source according to claim 1, which is characterized in that in step S3, described outer
Cover is installed, by the space-closed between the gas vent, the lid and cell sealing body, the cover inner space on shell
It is connected to form a closed chamber by the space between the gas vent and the lid and cell sealing body；Connection is taken out
Vacuum plant vacuumizes the chamber interior.
6. the exhaust packaging method of underwater power source according to claim 5, which is characterized in that in step S3, described in connection
The vacuum-pumping tube of vacuum evacuation device pierces into the cover, and the vacuum evacuation device is connected to the chamber by the vacuum-pumping tube
And the chamber is vacuumized.
7. the exhaust packaging method of underwater power source according to claim 5, which is characterized in that in step S4, by gluing pipe
It pierces into above the cover to the gas vent, in the periphery dot encapsulation glue of the gas vent.
8. the exhaust packaging method of underwater power source according to claim 1-7, which is characterized in that the sealant
It is as follows including raw material and its mass fraction: 0.10-0.25 parts of acrylate, 1.0-2.0 parts of engineering plastics, plastics sticker 7-13
Part and 80-90 parts of solvent.
9. the exhaust packaging method of underwater power source according to claim 8, which is characterized in that the engineering plastics include PC
And/or ABS；The plastics sticker includes DMC, EAC, resin and synthetic rubber；The solvent includes acetone.
10. the exhaust packaging method of underwater power source according to claim 8, which is characterized in that the sealant includes original
Material and its mass fraction are as follows: 0.15 part of acrylate, 1.5 parts of engineering plastics, 10 parts of plastics sticker and solvent 88.35
Part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910228926.9A CN109980147B (en) | 2019-03-25 | 2019-03-25 | Exhaust packaging method for underwater power supply |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910228926.9A CN109980147B (en) | 2019-03-25 | 2019-03-25 | Exhaust packaging method for underwater power supply |
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| CN109980147A true CN109980147A (en) | 2019-07-05 |
| CN109980147B CN109980147B (en) | 2021-10-22 |
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| Publication number | Publication date |
|---|---|
| CN109980147B (en) | 2021-10-22 |
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