CN115275471A - Underwater battery sealing structure, underwater battery sealing device and sealing method - Google Patents
Underwater battery sealing structure, underwater battery sealing device and sealing method Download PDFInfo
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- CN115275471A CN115275471A CN202210967852.2A CN202210967852A CN115275471A CN 115275471 A CN115275471 A CN 115275471A CN 202210967852 A CN202210967852 A CN 202210967852A CN 115275471 A CN115275471 A CN 115275471A
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- side wall
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- 238000007789 sealing Methods 0.000 title claims abstract description 162
- 238000000034 method Methods 0.000 title claims abstract description 14
- 239000003292 glue Substances 0.000 claims abstract description 65
- 238000003466 welding Methods 0.000 claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 16
- 230000002265 prevention Effects 0.000 abstract 1
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 238000004078 waterproofing Methods 0.000 description 2
- 241000976416 Isatis tinctoria subsp. canescens Species 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009182 swimming Effects 0.000 description 1
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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
- 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
- H01M50/233—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions
- H01M50/24—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries from their environment, e.g. from corrosion
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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
- 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
- H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
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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
- 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
- H01M50/244—Secondary casings; Racks; Suspension devices; Carrying devices; Holders characterised by their mounting method
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- 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
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The invention provides an underwater battery sealing structure, an underwater battery sealing device and a sealing method, which are arranged at the joint of a first shell and a second shell and comprise a first sealing structure, a second sealing structure and a third sealing structure, wherein the first sealing structure, the second sealing structure and the third sealing structure are sequentially arranged at the joint of the first shell and the second shell from inside to outside, and an internal cavity formed by the first shell and the second shell is sealed. The invention has the advantages that the sealing structures are sequentially arranged at the joint of the first shell and the second shell from inside to outside, the first sealing structure adopts a spigot structure or a sealing element for sealing, the second sealing structure adopts glue filling for sealing, the third sealing structure adopts ultrasonic welding for sealing, and the three sealing structures are combined for multiple water prevention, so that the battery sealing reliability is good, glue filling is not needed in the shell, the glue filling cost is reduced, and the glue filling weight is reduced.
Description
Technical Field
The invention belongs to the technical field of batteries, and particularly relates to an underwater battery sealing structure, an underwater battery sealing device and an underwater battery sealing method.
Background
For automated tools for underwater operations, such as: swimming pool cleaning machine, need be long-time at the underwater operation, adopt rechargeable battery to carry out power supply at present basically, for guaranteeing that the battery is normally working under water, need seal the battery to guarantee that the battery can not contact with water and cause the damage when working under water, current battery under water is mostly the structure of pure encapsulation formula, and the encapsulating volume is big, and the encapsulating is with high costs, and whole battery weight is great.
Disclosure of Invention
In view of the above problems, the present invention provides an underwater battery sealing structure, an underwater battery sealing device, and a sealing method, so as to solve the above or other former problems in the prior art.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows: the utility model provides an underwater battery seal structure, locates the junction of first casing and second casing, includes first seal structure, second seal structure and third seal structure, and first seal structure, second seal structure and third seal structure set gradually along from interior to exterior direction at the junction of first casing and second casing, seal the inside cavity that first casing and second casing constitute.
Further, the first seal structure is designed as a spigot structure constituted by an inner side wall of the first housing end portion and an inner side wall of the second housing end portion.
Further, the first seal structure is designed as a seal provided at a junction of an inner side wall of the first case end portion and an inner side wall of the second case end portion.
Further, the sealing element is a sealing ring.
Further, the second sealing structure is designed to be a glue filling layer arranged in a cavity formed by the groove in the end part of the first shell and the groove in the end part of the second shell.
Furthermore, a glue filling hole is formed in the first shell or the second shell and communicated with the groove in the end portion of the corresponding shell.
Further, the groove of the first shell end and the groove of the second shell end are both arranged along the circumferential direction of the corresponding shell end face.
Furthermore, the first shell or the second shell is provided with an exhaust hole, and the exhaust hole is communicated with a cavity formed by the groove at the end part of the first shell and the groove at the end part of the second shell.
Further, the third sealing structure is designed as an ultrasonic sealing layer provided at the junction of the outer side wall of the first housing and the outer side wall of the second housing.
Further, the ultrasonic sealing layer is formed by ultrasonic welding.
Further, be provided with the pressure release mouth on first casing or the second casing, the inside cavity intercommunication that pressure release mouth and first casing and second casing constitute for hold the relief valve.
An underwater battery sealing device comprises the underwater battery sealing structure.
A first layer of sealing, a second layer of sealing and a third layer of sealing are sequentially carried out at the joint of a first shell and a second shell along the direction from inside to outside after the first shell and the second shell are buckled, a first sealing structure is constructed at the inner side wall of the joint of the first shell and the second shell, a third sealing structure is constructed at the outer side wall of the joint of the first shell and the second shell, and a second sealing structure is constructed between the inner side wall and the outer side wall of the joint of the first shell and the second shell.
Further, when the first layer of sealing is performed, a seam allowance structure or a sealing element is used for sealing.
Further, when the second layer of sealing is carried out, glue is filled into a cavity formed by the groove at the end part of the first shell and the groove at the end part of the second shell.
Further, when the third layer of sealing is carried out, the outer side wall of the joint of the first shell and the second shell is subjected to ultrasonic welding.
By adopting the technical scheme, the first sealing structure, the second sealing structure and the third sealing structure are arranged at the buckling joint of the first shell and the second shell, the first sealing structure, the second sealing structure and the third sealing structure are sequentially arranged from inside to outside along the joint of the first shell and the second shell, the sealing structures are arranged at the inner side wall, the middle position and the outer side wall of the joint of the first shell and the second shell, multiple water proofing is provided, the first sealing structure is sealed by a spigot structure or a sealing piece and can strengthen protection in the first shell, the second sealing structure is sealed by glue filling, the middle position is sealed, IPX8 and water pressure of 10 meters are prevented, the third sealing structure is sealed by ultrasonic welding and can achieve IPX7 water proofing in the outer part, three layers of sealing structures are combined, the reliability of the battery sealing is good, the battery pack is placed in an inner cavity formed by the first shell and the second shell, glue filling is not needed, the cost is reduced, the weight of the glue filling is reduced, and a pressure relief port communicated with the inner cavity is arranged for installing the pressure relief valve so as to ensure the safety of the battery in the using process.
Drawings
FIG. 1 is a side cross-sectional structural schematic view of an embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of an embodiment of the present invention;
fig. 3 is a schematic diagram of the overall structure of an embodiment of the present invention.
In the figure:
1. first seal structure 2, second seal structure 3, and third seal structure
4. Glue filling hole 5, exhaust hole 6 and pressure relief opening
7. First shell 8, second shell 9, internal cavity
Detailed Description
The invention is further described with reference to the following figures and specific embodiments.
Fig. 1 shows a schematic structural diagram of an embodiment of the present invention, and the embodiment relates to an underwater battery sealing structure, an underwater battery sealing device, and a sealing method, which are used for sealing a fastening joint of two shells outside a battery pack, so that the battery has good sealing performance under water, a three-layer sealing structure is arranged at the joint of the two shells from inside to outside, multiple waterproof is achieved, an internal space after the two shells are fastened is used for installing the battery pack, glue filling is not required in the internal space, the glue filling cost is reduced, the glue filling weight is reduced, and the protection reliability is improved.
An underwater battery sealing structure is shown in figures 1-3 and is arranged at the joint of a first shell 7 and a second shell 8 which are connected, the first shell 7 is connected with the second shell 8 in a buckling mode, an inner cavity 9 is formed after the first shell 7 is buckled with the second shell 8 and is used for containing a battery pack, the end portion of the first shell 7 is in contact with the end portion of the second shell 8, a gap exists, when a battery is located underwater, water can enter the battery from the gap, the battery pack is damaged, therefore, the joint contact portion of the first shell 7 and the second shell 8 needs to be sealed, the sealing performance is improved, and the battery can be located underwater to be used.
This battery seal structure under water includes first seal structure 1, second seal structure 2 and third seal structure 3, first seal structure 1, second seal structure 2 all is located the junction of first casing 7 and second casing 8 with third seal structure 3, from interior to exterior sets gradually, seal the inside cavity 9 that first casing 7 and second casing 8 constitute, prevent that the battery from being located inside when under water intaking and causing the battery to damage, it is multiple waterproof to have, the leakproofness is good, protection reliability is good.
The first shell 7 and the second shell 8 are both of a spatial curved surface structure with a certain thickness, one end of the spatial curved surface structure is open, and the shape of the spatial curved surface structure is selected according to actual requirements, which is not specifically required here. The arrangement of the first sealing structure 1, the second sealing structure 2 and the third sealing structure 3 is used for carrying out triple sealing on the inner side surface, the middle position and the outer side surface of the contact position of the first shell 7 and the second shell 8 after being buckled and connected, so that the sealing performance of the contact position of the first shell 7 and the second shell 8 is improved.
The first seal structure 1 is designed as a spigot structure formed by the inner side wall of the first housing 7 and the inner side wall of the second housing 8, and seals the joint of the first housing 7 and the second housing 8 from the inside. The end face of the opening end of the first shell 7 and the end face of the opening end of the second shell 8 are respectively provided with a male spigot and a female spigot which are matched with each other, when the first shell 7 is buckled with the second shell 8, the male spigot is connected with the female spigot in an inserting mode, the buckling of the first shell 7 and the second shell 8 is located and limited, the first shell 7 and the second shell 8 are prevented from moving relatively after being buckled, meanwhile, the joint of the first shell 7 and the second shell 8 is sealed, the end face of the opening end of the first shell 7 and the end face of the opening end of the second shell 8 are in surface contact, the cross section of the contact is non-linear and stepped, water entering the inner cavity 9 formed by the first shell 7 and the second shell 8 from the outside can be blocked, the sealing effect is achieved, and the protection is enhanced.
The shape of the male and female spigots is selected according to actual requirements, and certainly, in order to prevent the first shell 7 or the second shell 8 from deforming to cause poor positioning and limiting of the male and female spigots, a reverse spigot structure can be arranged.
Alternatively, the first seal structure 1 is designed as a seal member provided at a junction of the inner side wall of the first housing 7 and the inner side wall of the second housing 8, and seals the junction of the first housing 7 and the second housing 8. The sealing element can be directly placed at the contact position of the end face of the opening end of the first shell 7 and the end face of the opening end of the second shell 8, when the first shell 7 and the second shell 8 are buckled and connected, the sealing element is compressed, and the sealing element seals the contact position of the first shell 7 and the second shell 8; or, the terminal surface at the open end of first casing 7 or second casing 8 is provided with the holding tank, and the sealing member setting is with the holding tank in, and the thickness of sealing member slightly is greater than the degree of depth of holding tank, and when first casing 7 was connected with the 8 lock of second casing, first casing 7 compressed the sealing member with second casing 8, and the sealing member seals the contact department of first casing 7 with second casing 8.
The sealing element is required to have waterproof and airtight properties, water does not enter the sealing element after the battery wades, long-term compression loss is small, and the sealing element has certain capability of resisting compression deformation.
The arrangement of the first sealing structure 1 seals the joint of the inner side walls of the first shell 7 and the second shell 8, and the protection is enhanced.
The second sealing structure 2 is designed to be a glue pouring layer arranged in a cavity formed by a groove at the end part of the first shell 7 and a groove at the end part of the second shell 8, the end surface of the opening end of the first shell 7 is inwards sunken to form a groove structure, the end surface of the opening end of the second shell 8 is inwards sunken to form a groove structure, when the first shell 7 is buckled with the second shell 8, the groove on the first shell 7 corresponds to the groove on the second shell 8 to form a cavity structure, glue is injected into the cavity structure, a glue pouring layer is formed after the glue is solidified, the joint of the first shell 7 and the second shell 8 is sealed, and external water is prevented from entering the interior.
In order to inject glue into the cavity structure, the first shell 7 or the second shell 8 is provided with a glue filling hole 4, the glue filling hole 4 is communicated with a groove at the end part of the corresponding shell, so that glue can enter the cavity structure through the glue filling hole 4, the glue filling hole 4 can be arranged on the first shell 7, or the glue filling hole 4 is arranged on the second shell 8, and the glue filling hole is selected and arranged according to actual requirements without specific requirements. The glue filling hole 4 is a through hole, penetrates through the shell wall of the first shell 7 or the second shell 8 and is communicated with the groove at the end part of the corresponding shell, so that the glue filling hole 4 is communicated with a cavity structure formed by the groove on the first shell 7 and the groove on the second shell 8, and glue enters the cavity structure. For the glue film that forms after making the glue solidification can seal the joint contact department of first casing 7 with second casing 8, should glue and can fill in the whole cavity structures, promptly, the shape and the volume of the encapsulating layer that forms suit with cavity structures, perhaps, the volume that the glue was filled is greater than the volume of the recess of first casing 7 or the volume of the recess of second casing 8, so that the encapsulating layer that forms after the glue solidification can seal the junction of first casing 7 with second casing 8, also provide deformation space for the thermal expansion of encapsulating layer.
The groove at the end part of the first shell 7 and the groove at the end part of the second shell 8 are both arranged along the circumferential direction of the corresponding shells, the grooves at the end parts of the first shell 7 and the second shell 8 are both annular and surround the whole end parts of the first shell 7/the second shell 8, so that the formed glue filling layer is of an annular structure; or, the number of the grooves at the end of the first shell 7 may be multiple, the multiple grooves are sequentially arranged along the circumferential direction of the first shell 7, correspondingly, the grooves are also arranged at corresponding positions at the end of the second shell 8, when the first shell 7 and the second shell 8 are fastened, the grooves on the two are in one-to-one correspondence, the corresponding grooves form a cavity structure for glue injection, the multiple grooves on the first shell 7 or the second shell 8 are all communicated through holes, and in such a structure, the number of the glue injection holes 4 may be one, and the one groove is located on the first shell 7 or the second shell 8 and is communicated with any one groove on the shell; or, a plurality of grooves on the first shell 7 and the second shell 8 are not communicated, a plurality of glue filling holes 4 are arranged on the first shell 7 or the second shell 8, and each glue filling hole 4 is communicated with one groove of the shell to fill glue. The shape, number and arrangement of the grooves on the first housing 7 and the second housing 8 are selected according to actual requirements, and are not specifically required here.
The glue forming the glue filling layer is waterproof glue and is a commercially available product, and the glue is selected and arranged according to actual requirements without specific requirements.
The arrangement of the second sealing structure 2 further enhances the sealing performance of the battery, so that the battery can achieve water resistance under the water pressure of IPX8 and 10 meters.
Be equipped with exhaust hole 5 on first casing 7 or the second casing 8, exhaust hole 5 and the recess intercommunication of first casing 7 or 8 tip of second casing, promptly, the cavity structure intercommunication that the recess of this exhaust hole 5 and first casing 7 tip and the recess of 8 tip of second casing constitute, consequently, exhaust hole 5 and encapsulating hole 4 intercommunication, this exhaust hole 5 is the through hole, be used for the encapsulating in-process to exhaust, so that encapsulating in-process glue can get into cavity structure smoothly, evenly fill in cavity structure, reduce the bubble in the colloid.
For the convenience of glue filling, preferably, in this embodiment, the exhaust hole 5 and the glue filling hole 4 are located on the same housing, both located on the first housing 7, or both located on the second housing 8.
The third sealing structure 3 is designed to be an ultrasonic sealing layer arranged at the joint of the outer side wall of the first shell 7 and the outer side wall of the second shell 8, the ultrasonic sealing layer is formed by ultrasonic welding, after the first shell 7 and the second shell 8 are buckled, the ultrasonic welding is carried out at the joint of the outer side walls of the first shell 7 and the second shell 8, and the joint of the first shell 7 and the second shell 8 is welded together for sealing. Since the ultrasonic welding is thermal welding, the joint of the outer side walls of the first and second housings 7 and 8 can be melted and fused together, and the sealing performance is good.
The third sealing structure 3 is arranged to further enhance the sealing performance of the battery, provide a uniform sealing structure for the battery, and achieve the waterproof grade of IPX7.
Be provided with pressure release mouth 6 on first casing 7 or the second casing 8, the inside cavity 9 intercommunication that forms behind pressure release mouth 6 and the first casing 7 and the 8 locks of second casing for hold the relief valve, the gas that produces and cause inside cavity 9 pressure to release when too big at the group battery charge-discharge in-process, guarantee the security of battery.
An underwater battery sealing device comprises the underwater battery sealing structure.
The underwater battery sealing device comprises a first shell 7 and a second shell 8, the junction of the first shell 7 and the second shell 8 is sealed in three layers from inside to outside, the internal cavity space formed by the first shell 7 and the second shell 8 can accommodate components and other structural members such as a battery pack, glue pouring is not needed to be carried out in the space where the battery pack is located, the glue pouring cost is saved, the glue pouring weight is reduced, and meanwhile, the reliability of battery sealing protection is improved due to the arrangement of the three-layer sealing structure.
A method for sealing an underwater battery comprises the steps of sequentially carrying out first layer sealing, second layer sealing and third layer sealing at the joint of a first shell 7 and a second shell 8 along the direction from inside to outside after the first shell 7 and the second shell 8 are buckled, constructing a first sealing structure 1 at the inner side wall of the joint of the first shell 7 and the second shell 8, constructing a third sealing structure 3 at the outer side wall of the joint of the first shell 7 and the second shell 8, and constructing a second sealing structure 2 between the inner side wall and the outer side wall of the joint of the first shell 7 and the second shell 8.
When the first layer of sealing is performed, sealing is performed by using a seam allowance structure or a sealing member which is provided on an inner side wall of a joint of the first casing 7 and the second casing 8 and performs the first layer of sealing on the joint of the first casing 7 and the second casing 8 inside.
When the second layer of sealing is carried out, glue is poured into a cavity formed by the grooves at the end parts of the first shell 7 and the second shell 8, the glue pouring amount is larger than the volume of the grooves at the end parts of the first shell 7 or the volume of the grooves at the end parts of the second shell 8, so that a glue pouring layer is formed after the glue is solidified, the second layer of sealing is carried out on the joint of the first shell 7 and the second shell 8 by the glue pouring layer, when the glue is poured, glue in a fluid state enters from the glue pouring hole 4 and flows in the cavity formed by the grooves at the end parts of the first shell 7 and the second shell 8, and air in the cavity is discharged from the air exhaust hole 5.
When the third layer of sealing is performed, the outer side wall of the joint of the first shell 7 and the second shell 8 is ultrasonically welded, and the joint of the first shell 7 and the second shell 8 is welded together to perform the third layer of sealing.
By adopting the technical scheme, the first sealing structure, the second sealing structure and the third sealing structure are arranged at the buckling joint of the first shell and the second shell, the first sealing structure, the second sealing structure and the third sealing structure are sequentially arranged along the joint of the first shell and the second shell from inside to outside, the sealing structures are arranged at the inner side wall, the middle position and the outer side wall of the joint of the first shell and the second shell, multiple waterproofness is provided, the first sealing structure is sealed by a spigot structure or a sealing piece and can strengthen protection in the interior, the second sealing structure is sealed by glue filling, the middle position is sealed, IPX8 and water pressure of 10 meters can be achieved, the third sealing structure is sealed by ultrasonic welding and can achieve three waterproof layers of IPX7, the pressure release valves are combined, the reliability of the sealing of the battery is good, the battery pack is placed in the inner cavity formed by the first shell and the second shell, glue filling is not needed, the cost is reduced, the weight of glue filling is reduced, and the pressure relief port communicated with the inner cavity is arranged for ensuring the safety of the battery in the using process.
The embodiments of the present invention have been described in detail, but the description is only for the preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.
Claims (10)
1. An underwater battery seal structure, characterized in that: the sealing structure is arranged at the joint of the first shell and the second shell and comprises a first sealing structure, a second sealing structure and a third sealing structure, wherein the first sealing structure, the second sealing structure and the third sealing structure are sequentially arranged at the joint of the first shell and the second shell along the direction from inside to outside, and the inner cavity formed by the first shell and the second shell is sealed.
2. The underwater battery sealing structure of claim 1, wherein: the first sealing structure is designed into a spigot structure formed by an inner side wall of the first shell end part and an inner side wall of the second shell end part; or the like, or, alternatively,
the first seal structure is designed as a seal disposed at a junction of an inner side wall of the first housing end and an inner side wall of the second housing end;
preferably, the sealing element is a sealing ring.
3. The underwater battery sealing structure according to claim 1 or 2, characterized in that: the second sealing structure is designed to be a glue filling layer arranged in a cavity formed by the groove in the end part of the first shell and the groove in the end part of the second shell.
4. The underwater battery seal structure according to claim 3, characterized in that: the first shell or the second shell is provided with a glue filling hole, and the glue filling hole is communicated with the groove at the end part of the corresponding shell;
and the first shell or the second shell is provided with an exhaust hole, and the exhaust hole is communicated with a cavity formed by the groove at the end part of the first shell and the groove at the end part of the second shell.
5. The underwater battery seal structure according to claim 4, characterized in that: the groove of the first shell end and the groove of the second shell end are arranged along the circumferential direction of the corresponding shell end face.
6. The underwater battery seal structure according to any one of claims 1-2 and 4-5, wherein: the third sealing structure is designed as an ultrasonic sealing layer arranged at the joint of the outer side wall of the first shell and the outer side wall of the second shell; preferably, the ultrasonic sealing layer is formed by ultrasonic welding.
7. The underwater battery seal structure according to claim 1, characterized in that: the first shell or the second shell is provided with a pressure relief opening, and the pressure relief opening is communicated with an inner cavity formed by the first shell and the second shell and used for accommodating a pressure relief valve.
8. An underwater battery sealing device, characterized in that: comprising an underwater battery sealing structure as claimed in any one of claims 1 to 7.
9. An underwater battery sealing method, characterized in that: after the first shell and the second shell are buckled, a first layer of sealing, a second layer of sealing and a third layer of sealing are sequentially carried out at the joint of the first shell and the second shell along the direction from inside to outside, a first sealing structure is constructed at the inner side wall of the joint of the first shell and the second shell, a third sealing structure is constructed at the outer side wall of the joint of the first shell and the second shell, and a second sealing structure is constructed between the inner side wall and the outer side wall of the joint of the first shell and the second shell.
10. The underwater battery sealing method of claim 9, wherein: when the first layer of sealing is carried out, a seam allowance structure or a sealing element is adopted for sealing;
when the second layer of sealing is carried out, glue is filled into a cavity formed by the groove at the end part of the first shell and the groove at the end part of the second shell;
and when the third layer of sealing is carried out, carrying out ultrasonic welding on the outer side wall of the joint of the first shell and the second shell.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210967852.2A CN115275471A (en) | 2022-08-12 | 2022-08-12 | Underwater battery sealing structure, underwater battery sealing device and sealing method |
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| CN202210967852.2A CN115275471A (en) | 2022-08-12 | 2022-08-12 | Underwater battery sealing structure, underwater battery sealing device and sealing method |
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| CN115275471A true CN115275471A (en) | 2022-11-01 |
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| CN213905493U (en) * | 2020-12-07 | 2021-08-06 | 惠州市德赛电池有限公司 | Small-size power battery package structure and electric motor car with waterproof function |
| CN113644364A (en) * | 2021-07-08 | 2021-11-12 | 海南小鲨鱼智能科技有限公司 | Battery waterproof device and surfboard comprising same |
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| CN215733520U (en) * | 2021-03-23 | 2022-02-01 | 广东力德诺电子科技有限公司 | Charging device with waterproof structure |
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| CN216248302U (en) * | 2021-11-05 | 2022-04-08 | 上海为彪汽配制造有限公司 | Multiple waterproof construction of radar |
| CN216389548U (en) * | 2021-11-15 | 2022-04-26 | 宁德时代新能源科技股份有限公司 | Battery cell, battery and power consumption device |
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