CN215733520U - Charging device with waterproof structure - Google Patents
Charging device with waterproof structure Download PDFInfo
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- CN215733520U CN215733520U CN202120591460.1U CN202120591460U CN215733520U CN 215733520 U CN215733520 U CN 215733520U CN 202120591460 U CN202120591460 U CN 202120591460U CN 215733520 U CN215733520 U CN 215733520U
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Abstract
The utility model relates to the technical field of charging power supplies, and discloses a charging device with a waterproof structure, which can prevent water from entering the interior of a shell. The utility model comprises a first shell, a second shell, a first annular groove, a second annular groove, a first convex part, a second convex part, a first sealing ring arranged in the first annular groove and a second sealing ring arranged in the second annular groove, wherein when the first shell and the second shell are fixedly connected, the first convex part or the second convex part is respectively embedded in the first groove or the second groove.
Description
Technical Field
The utility model relates to the technical field of charging power supplies, in particular to a charging device with a waterproof structure.
Background
When going out, most people carry the portable charging device, the existing portable charging device is only provided with a waterproof and dustproof structure on a charging interface, and the shell of the portable charging device is not provided with a proper structure which can prevent the portable charging device from entering water.
SUMMERY OF THE UTILITY MODEL
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the utility model provides a charging device with a waterproof structure, which can prevent water from entering the interior from a shell.
According to the charging device with the waterproof structure of the embodiment of the utility model, the charging device comprises a first shell, a second shell, a first annular groove, a second annular groove, a first convex part, a second convex part, a first sealing ring and a second sealing ring: the first shell is provided with an accommodating groove, and a battery and a circuit assembly are arranged in the accommodating groove; the second shell is fixedly connected with the first shell and is used for covering the opening of the accommodating groove; the first annular groove is arranged on the edge of the upper end surface of the first shell in a surrounding mode; the second annular groove is arranged on the edge of the lower end surface of the second shell in a surrounding mode; the first convex part is arranged at the edge of the lower end surface of the second shell in a surrounding mode; the second convex part is arranged at the edge of the upper end surface of the first shell in a surrounding mode; the first sealing ring is matched with the first annular groove and is arranged in the first annular groove, and a first groove matched with the first convex part in shape is formed in the first sealing ring; the second sealing ring is matched with the second annular groove and is arranged in the second annular groove, and a second groove matched with the second convex part in shape is formed in the second sealing ring; when the first shell and the second shell are fixedly connected, the first convex part is embedded in the first groove, and the second convex part is embedded in the second groove.
The charging device with the waterproof structure provided by the embodiment of the utility model at least has the following beneficial effects: the extrusion effect of the first annular groove and the first convex part on the first sealing ring and the extrusion effect of the second annular groove and the second convex part on the second sealing ring are matched, so that the positioning and assembling effect can be achieved, the assembling efficiency is improved, the gap at the joint between the first shell and the second shell can be eliminated, the double sealing effect is formed between the first shell and the second shell, the situation that water or dust enters from the gap between the first shell and the second shell and damages to a battery or a circuit assembly can be prevented, meanwhile, the situation that the first shell and the second shell deviate due to collision can be prevented in the daily use process by matching the structures of the two groups of convex parts and the annular grooves, the probability of damaging the fixed joint between the first shell and the second shell is reduced, and the internal battery and the circuit assembly can keep a stable working environment, the reliability and safety of the utility model are improved.
According to some embodiments of the present invention, the second shell is provided with a plurality of through holes and a plurality of screws on the outer sides of the second annular groove and the first convex portion, the first shell is provided with a plurality of threaded holes respectively matched with the corresponding through holes, and the plurality of screws respectively penetrate through the corresponding through holes to be in threaded connection with the corresponding threaded holes.
According to some embodiments of the utility model, the inlet widths of the first and second grooves are each greater than the bottom width.
According to some embodiments of the utility model, the side wall of the first groove is provided with at least one first exhaust groove, and the side wall of the second groove is provided with at least one second exhaust groove.
According to some embodiments of the utility model, the first exhaust groove and the second exhaust groove are in a staggered relationship.
According to some embodiments of the utility model, the side walls of the first groove and the side walls of the second groove are each provided with at least one protruding rib.
According to some embodiments of the utility model, the outer wall of the first seal ring is provided with a third protrusion, the inner wall of the first annular groove is provided with a third groove corresponding to the third protrusion, and the third protrusion is embedded in the third groove when the first seal ring is placed in the first annular groove.
According to some embodiments of the utility model, the outer wall of the second sealing ring is provided with a fourth protrusion, the inner wall of the second annular groove is provided with a fourth groove corresponding to the fourth protrusion, and the fourth protrusion is embedded in the fourth groove when the second sealing ring is placed in the fourth groove.
According to some embodiments of the utility model, the magnetic attraction device further comprises a first magnetic attraction part arranged on the upper end surface of the second shell or the lower end surface of the first shell.
According to some embodiments of the utility model, the second housing further comprises a finger ring provided on an upper end surface of the second housing or a lower end surface of the first housing.
Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic view of a charging device having a waterproof structure according to an embodiment of the present invention;
FIG. 2 is an enlarged partial view of A of FIG. 1;
fig. 3 is a schematic structural view of a first housing of the charging device having a waterproof structure shown in fig. 1;
fig. 4 is a schematic structural view of a second housing of the charging device having a waterproof structure shown in fig. 1;
fig. 5 is a schematic structural view of a first sealing ring of the charging device having a waterproof structure shown in fig. 1;
fig. 6 is a schematic partial perspective view illustrating a first sealing ring of a charging device with a waterproof structure according to a second embodiment of the present invention;
fig. 7 is a schematic structural diagram of a third embodiment of a first sealing ring of a charging device with a waterproof structure according to the present invention.
Reference numerals: the first casing 100, the receiving groove 110, the battery 120, the circuit assembly 130, the threaded hole 140, the second casing 200, the through hole 210, the screw 220, the first annular groove 300, the second annular groove 400, the first protrusion 500, the second protrusion 600, the first sealing ring 700, the first groove 710, the first exhaust groove 720, the third protrusion 730, the second sealing ring 800, the first magnetic attraction part 900, and the finger ring 1000.
Detailed Description
Reference will now be made in detail to the present preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.
In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and larger, smaller, larger, etc. are understood as excluding the number, and larger, smaller, inner, etc. are understood as including the number. If there is a description of the first, second, third and fourth only for the purpose of distinguishing between technical features, this is not to be understood as indicating or implying a relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.
Referring to fig. 1, a charging device having a waterproof structure according to an embodiment of the present invention includes a first housing 100, a second housing 200, a first annular groove 300, a second annular groove 400, a first protrusion 500, a second protrusion 600, a first sealing ring 700, and a second sealing ring 800: the first casing 100 is provided with an accommodating groove 110, and a battery 120 and a circuit assembly 130 are arranged in the accommodating groove 110; the second housing 200 is fixedly connected to the first housing 100, and the second housing 200 is used for covering the opening of the accommodating groove 110; the first annular groove 300 is circumferentially provided at the edge of the upper end surface of the first housing 100; the second annular groove 400 is circumferentially provided at the edge of the lower end surface of the second housing 200; the first protrusion 500 is circumferentially disposed on the edge of the lower end surface of the second housing 200; the second protrusion 600 is circumferentially disposed on the edge of the upper end surface of the first housing 100; the first sealing ring 700 is matched with the first annular groove 300 and is arranged in the first annular groove 300, and a first groove 710 matched with the shape of the first convex part 500 is arranged on the first sealing ring 700; the second sealing ring 800 is matched with the second annular groove 400 and is arranged in the second annular groove 400, and a second groove (not shown) matched with the shape of the second convex part 600 is arranged on the second sealing ring 800; when the first housing 100 and the second housing 200 are fixedly connected, the first protrusion 500 is embedded in the first groove 710, and the second protrusion 600 is embedded in the second groove (not shown).
During assembly, the first sealing ring 700 and the second sealing ring 800, which are in a ring shape, are respectively plugged into the corresponding first annular groove 300 and the second annular groove 400, then the first casing 100 is covered on the opening of the accommodating groove 110, the first protrusion 500 is aligned with the first groove 710, the second protrusion 600 is aligned with the second groove (not shown), and the fixing points of the first casing 100 and the second casing 200 are fixed, so that the first casing 100 and the second casing 200 are fixedly connected, at this time, the first protrusion 500 and the first annular groove 300 extrude the first sealing ring 700, the second protrusion 600 and the second annular groove 400 extrude the second sealing ring 800, further, the gap between the first casing 100 and the second casing 200 can be eliminated, the double sealing effect is realized, external water and dust can be prevented from entering the inside, and the internal battery 120 and the circuit assembly 130 can be kept in a stable working environment, thereby improving the reliability and safety of the portable charging device.
It is contemplated, among other things, that first seal ring 700 may be formed from a thermoplastic ethylene propylene diene monomer, vulcanized ethylene propylene diene monomer, or silicone rubber. Simultaneously, cooperate the requirement of conventional sealing washer, select first sealing washer 700 and second sealing washer 800 of suitable size, ensure sealed effect simultaneously, even in conventional use, if one of them sealing washer abnormal conditions appears, can't keep sealed effect, then another layer of sealing washer can play sealed isolated effect, the reliability has been promoted effectively, simultaneously, if the condition of soaking in water for a long time appears, owing to possess dual isolated effect, then can prolong the time of personal charging device in water effectively, even water or dust can cross first sealing washer 700 promptly, then second sealing washer 800 is protecting in addition, and then can realize isolated effectively.
In addition, the first protrusion 500 and the first annular groove 300 are engaged with each other, and the second protrusion 600 and the second annular groove 400 are engaged with each other, so that the first casing 100 and the second casing 200 are stably maintained, the first casing 100 and the second casing 200 are not easily separated even if a collision occurs, and the phenomenon of forced deviation of the first casing 100 and the second casing 200 is avoided, thereby reducing damage to the fixing point between the first casing 100 and the second casing 200.
In some embodiments of the present invention, the second housing 200 is provided with a plurality of through holes 210 and a plurality of screws 220 on the outer sides of the second annular groove 400 and the first protrusion 500, the first housing 100 is provided with a plurality of threaded holes 140 respectively matched with the corresponding through holes 210, and the plurality of screws 220 respectively penetrate through the corresponding through holes 210 and are in threaded connection with the corresponding threaded holes 140. The structure of providing the screw hole 140, the through hole 210 and the screw 220 can facilitate the disassembly and assembly between the first casing 100 and the second casing 200, and can improve the tightness between the first casing 100 and the second casing 200, so as to improve the extrusion of the first sealing ring 700 and the second sealing ring 800, thereby improving the sealing effect. The plurality of through holes 220 are uniformly distributed along the edge of the second housing 200, and the plurality of threaded holes 140 are distributed on the edge of the first housing 100 and correspond to the corresponding through holes 210, so that the first housing 100 and the second housing 200 can be tightly connected.
It is contemplated that, in addition to the screw 220 connection, the first casing 100 and the second casing 200 may be fixedly connected by riveting, welding or clipping. The specific connection manner and structure are conventional in the art, and those skilled in the art can adopt a suitable fixed connection manner by matching the structures of the first casing 100 and the second casing 200 to realize a tight connection between the first casing 100 and the second casing 200.
In some embodiments of the present invention, the first groove 710 and the second groove (not shown) each have an entrance width that is greater than the bottom width. The first protrusion 500 and the second protrusion 600 can be conveniently inserted into the corresponding first groove 710 and the second groove (not shown), and the first groove 710 and the second groove (not shown) can form an inclined surface structure, so that the contact area between the sealing ring and the corresponding protrusion can be effectively increased, and the sealing effect can be further improved.
In some embodiments of the present invention, at least one first exhaust groove 720 is formed on a sidewall of the first groove 710, and at least one second exhaust groove (not shown) is formed on a sidewall of the second groove (not shown). Set up the air discharge duct, in the equipment process, when corresponding the convex part and inserting corresponding recess in, can make gaseous through the air discharge duct discharge, and then can avoid appearing the air film, further improved the sealing washer and correspond the laminating degree between the convex part, strengthened waterproof dirt-proof effect.
In some embodiments of the present invention, the first exhaust slots 720 and the second exhaust slots (not shown) are in a staggered relationship. Since it is difficult to avoid the dimension error in the process, that is, the sidewall of the exhaust groove may not be closely attached to the corresponding protrusion during the assembly, and there is a possibility of fine water leakage, but since the first exhaust groove 720 and the second exhaust groove (not shown) are displaced, even if external water enters between the first casing 100 and the second casing 200 through the gap of the first exhaust groove 720, the second sealing ring 800 can play a role of insulation to prevent water from easily flowing into the inside since the first exhaust groove 720 and the second exhaust groove (not shown) are displaced, and since the gap between the exhaust groove and the protrusion is small due to the compression effect due to the plasticity of the sealing ring itself, the amount of water or dust entering through the exhaust groove is very small, due to the presence of the second sealing ring 800, it is ensured that an extremely small amount of the sealing ring does not enter the interior of the receiving groove 110, but remains between the first sealing ring 700 and the second sealing ring 800, thereby achieving the effect of sealing and isolating.
In some embodiments of the present invention, the sidewalls of the first groove 710 and the sidewalls of the second groove (not shown) are each provided with at least one protruding rib (not shown). By means of the rib (not shown), the adhesive force between the convex part and the corresponding sealing ring can be improved, and the sealing effect is further improved.
In some embodiments of the present invention, the outer wall of the first sealing ring 700 is provided with a third protrusion 730, the inner wall of the first annular groove 300 is provided with a third groove (not shown) corresponding to the third protrusion 730, and the third protrusion 730 is embedded in the third groove (not shown) when the first sealing ring 700 is seated in the first annular groove 300. By using the third groove (not shown) and the third protrusion 730, the first sealing ring 700 can be limited, that is, the first sealing ring 700 can be kept in a fixed state with the first annular groove 300, and the first sealing ring 700 is prevented from being separated from the first annular groove 300 or deviating during the assembly of the first casing 100 and the second casing 200, so that the assembly efficiency can be improved, and meanwhile, the sealing effect can be prevented from being influenced.
In some embodiments of the present invention, the outer wall of the second sealing ring 800 is provided with a fourth protrusion (not shown), the inner wall of the second annular groove 400 is provided with a fourth groove (not shown) corresponding to the fourth protrusion (not shown), and when the second sealing ring 800 is disposed in the fourth groove (not shown), the fourth protrusion (not shown) is embedded in the fourth groove (not shown). Utilize fourth recess (not shown) and fourth convex part (not shown), can play spacing effect to second sealing washer 800, can so that second sealing washer 800 can keep the fixed state between with second annular groove 400, prevent at first casing 100 and second casing 200 assembling process, second sealing washer 800 can break away from second annular groove 400 or the condition of skew appears, not only can improve the efficiency of equipment, can avoid influencing sealed effect simultaneously.
In some embodiments of the present invention, the magnetic connector further includes a first magnetic attraction portion 900 disposed on an upper end surface of the second casing 200 or a lower end surface of the first casing 100. The second magnetic part (not shown) matched with the first magnetic part 900 and the second magnetic part (not shown) are arranged on the device to be charged, so that the device to be charged can be fixed on the first shell 100 or the second shell 200 when being charged, and the mobile phone can be fixed on the first shell 100 or the second shell 200 when being charged if the second magnetic part (not shown) is fixed on the back of the mobile phone, so that the charging device and the mobile phone can be carried simultaneously.
It is conceivable that the first magnetic attraction portion 900 and the second magnetic attraction portion (not shown) are magnets or ferromagnets, and at least one of the first magnetic attraction portion 900 and the second magnetic attraction portion (not shown) is a magnet. When first magnetism portion 900 and second magnetism portion of inhaling (not shown in the figure) all adopt magnet, then need utilize the principle that opposite poles attract to set up according to suitable direction the magnetic pole of first magnetism portion 900 and second magnetism portion of inhaling (not shown in the figure) to first magnetism portion 900 and second magnetism portion of inhaling (not shown in the figure) carry out magnetism and connect.
It is conceivable that the first magnetic attraction portion 900 may be embedded in the first casing 100 or the second casing 200 and be flush with the mounting surface, so as to prevent the first magnetic attraction portion 900 from being worn and improve the overall appearance of the charging device.
In some embodiments of the present invention, a finger ring 1000 is further included on the upper end surface of the second housing 200 or the lower end surface of the first housing 100. Adopt the ring 1000, during can handheld charging device, insert the finger, in order to prevent charging device's landing, simultaneously if the first magnetism of cooperation is inhaled portion 900, then can convenience of customers when charging, can handheld charging device and cell-phone simultaneously, so that when the user charges, also can conveniently use the cell-phone, it needs to notice, when first magnetism is inhaled portion 900 and is installed on first casing 100, the ring 1000 then sets up on second casing 200, when first magnetism is inhaled portion 900 and is installed on second casing 200, the ring 1000 then sets up on first casing 100, just so can be convenient for treat charging apparatus and fix, the user of being convenient for simultaneously indicates insert and carry.
In some embodiments of the present invention (not shown), a charging port and at least one USB port are disposed on one side of the first housing 100, and a charging port and at least one USB port are disposed on the circuit assembly 130, the charging port is disposed on the charging port, and the USB port is disposed on the USB port. The charging port and the USB port are arranged, so that the charging device can conveniently charge or charge external equipment. During assembly, the battery 120 and the circuit assembly 130 may be fixed in the receiving groove 110 of the first housing 100 by any one of welding, bonding, or fastening connection, wherein the battery 120 is electrically connected to the circuit assembly 130, so that the battery 120 realizes the charging and discharging process through the charging interface or the USB interface, specifically, the battery 120 may adopt the storage battery 120, and the circuit assembly 130 may adopt a conventional charging and discharging hardware circuit in the art to realize the functional requirements of charging and discharging of the charging device. It is contemplated that one or more than one USB port may be provided as desired.
In some embodiments of the present invention (not shown), the charging port and the USB port are respectively provided with corresponding rubber pads. Set up the rubber pad, can seal mouth and USB mouth that charge, can play dustproof and waterproof effect. The rubber pad can set up assorted appearance according to the shape of charging mouth and USB mouth to can block in charging mouth or USB mouth, adopt the rubber pad to seal USB mouth and charging mouth belongs to the conventional technical means in this field, and then do not do too much detailed description. In addition, the corresponding contact surface between the charging interface and between the USB interface and the USB interface can also be provided with a conventional sealing ring or a conventional sealing structure so as to realize the sealing effect. The specific sealing means are also conventional in the art and will not be described in any greater detail herein.
According to the charging device with the waterproof structure of the embodiment of the present invention, by such arrangement, at least some effects can be achieved, such as the effect of positioning and assembling, the effect of eliminating the gap at the joint between the first casing 100 and the second casing 200, and the effect of forming the double seal between the first casing 100 and the second casing 200 by matching the pressing action of the first annular groove 300 and the first protrusion 500 on the first seal ring 700 and the pressing action of the second annular groove 400 and the second protrusion 600 on the second seal ring 800, so as to effectively avoid the water or dust entering from the gap between the first casing 100 and the second casing 200, and prevent the damage to the battery 120 or the circuit assembly 130, and the effect of preventing the first casing 100 and the second casing 200 from shifting due to collision in the daily use process by matching the structures of the two sets of protrusions and annular grooves, the probability of damage to the fixed connection between the first case 100 and the second case 200 is reduced, so that the internal battery 120 and the circuit assembly 130 can maintain a stable working environment, and the reliability and safety of the present invention are improved.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the utility model have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the utility model, the scope of which is defined by the claims and their equivalents.
Claims (9)
1. A charging device having a waterproof structure, comprising:
the battery pack comprises a first shell and a second shell, wherein the first shell is provided with an accommodating groove, and a battery and a circuit assembly are arranged in the accommodating groove;
the second shell is fixedly connected with the first shell and used for covering the opening of the accommodating groove;
the first annular groove is arranged on the edge of the upper end surface of the first shell in a surrounding mode;
the second annular groove is arranged on the edge of the lower end surface of the second shell in a surrounding mode;
the first convex part is arranged on the edge of the lower end surface of the second shell in a surrounding mode;
the second convex part is arranged on the edge of the upper end surface of the first shell in a surrounding mode;
the first sealing ring is matched with the first annular groove and is arranged in the first annular groove, and a first groove matched with the first convex part in shape is formed in the first sealing ring;
the second sealing ring is matched with the second annular groove and is arranged in the second annular groove, and a second groove matched with the second convex part in shape is formed in the second sealing ring;
when the first shell and the second shell are fixedly connected, the first convex part is embedded in the first groove, and the second convex part is embedded in the second groove.
2. The charging device having a waterproof structure according to claim 1, wherein: the inlet widths of the first groove and the second groove are respectively greater than the bottom width.
3. The charging device having a waterproof structure according to claim 1, wherein: the side wall of the first groove is provided with at least one first exhaust groove, and the side wall of the second groove is provided with at least one second exhaust groove.
4. The charging device having a waterproof structure according to claim 3, wherein: the first exhaust groove and the second exhaust groove are in staggered distribution.
5. The charging device having a waterproof structure according to claim 4, wherein: the side wall of the first groove and the side wall of the second groove are respectively provided with at least one protruding rib.
6. The charging device having a waterproof structure according to claim 5, wherein: the outer wall of the first sealing ring is provided with a third convex part, the inner wall of the first annular groove is provided with a third groove corresponding to the third convex part, and when the first sealing ring is arranged in the first annular groove, the third convex part is embedded in the third groove.
7. The charging device having a waterproof structure according to claim 1 or 6, wherein: the outer wall of the second sealing ring is provided with a fourth convex part, the inner wall of the second annular groove is provided with a fourth groove corresponding to the fourth convex part, and when the second sealing ring is arranged in the fourth groove, the fourth convex part is embedded in the fourth groove.
8. The charging device having a waterproof structure according to claim 1, wherein: the magnetic attraction device further comprises a first magnetic attraction part arranged on the upper end face of the second shell or the lower end face of the first shell.
9. The charging device having a waterproof structure according to claim 1 or 8, wherein: the shell is characterized by further comprising a finger ring arranged on the upper end face of the second shell or the lower end face of the first shell.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120591460.1U CN215733520U (en) | 2021-03-23 | 2021-03-23 | Charging device with waterproof structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120591460.1U CN215733520U (en) | 2021-03-23 | 2021-03-23 | Charging device with waterproof structure |
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| CN215733520U true CN215733520U (en) | 2022-02-01 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115275471A (en) * | 2022-08-12 | 2022-11-01 | 天津望圆智能科技股份有限公司 | Underwater battery sealing structure, underwater battery sealing device and sealing method |
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2021
- 2021-03-23 CN CN202120591460.1U patent/CN215733520U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115275471A (en) * | 2022-08-12 | 2022-11-01 | 天津望圆智能科技股份有限公司 | Underwater battery sealing structure, underwater battery sealing device and sealing method |
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