CN115347337A - Battery filling hole sealing assembly, battery module and electric equipment - Google Patents
Battery filling hole sealing assembly, battery module and electric equipment Download PDFInfo
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- CN115347337A CN115347337A CN202211084510.2A CN202211084510A CN115347337A CN 115347337 A CN115347337 A CN 115347337A CN 202211084510 A CN202211084510 A CN 202211084510A CN 115347337 A CN115347337 A CN 115347337A
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- sealing
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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
- H01M50/60—Arrangements or processes for filling or topping-up with liquids; Arrangements or processes for draining liquids from casings
- H01M50/609—Arrangements or processes for filling with liquid, e.g. electrolytes
- H01M50/627—Filling ports
- H01M50/636—Closing or sealing filling ports, e.g. using lids
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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
- H01M50/60—Arrangements or processes for filling or topping-up with liquids; Arrangements or processes for draining liquids from casings
- H01M50/609—Arrangements or processes for filling with liquid, e.g. electrolytes
- H01M50/627—Filling ports
- H01M50/636—Closing or sealing filling ports, e.g. using lids
- H01M50/645—Plugs
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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 Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Filling, Topping-Up Batteries (AREA)
Abstract
The application discloses liquid hole seal assembly is annotated to battery, battery module and consumer, and liquid hole seal assembly includes is annotated to the battery: top cap, sealing plug and sealed apron, the top cap includes the recess of intercommunication and annotates the liquid hole from the top in proper order to the direction of bottom, the sealing plug is located in the recess, sealed apron is located on the recess, will the sealing plug compresses tightly seal in the recess annotate the liquid hole, just sealed apron with the top cap can be dismantled and be connected. The application provides a liquid hole seal assembly is annotated to battery, and the notes liquid hole of battery can be opened and carry out the fluid infusion.
Description
Technical Field
This application generally relates to battery technical field, particularly, relates to a hole seal assembly is annotated to battery, battery module and consumer.
Background
The secondary battery comprises an electric core, a shell and a top cover, wherein the electric core is provided with a positive electrode lug and a negative electrode lug, and the top cover is provided with a positive electrode post, a negative electrode post, a liquid injection hole and an explosion-proof valve. When the battery is assembled, the positive electrode lug and the negative electrode lug are welded with the positive electrode column and the negative electrode column correspondingly, then the battery core is placed in the shell, the top cover and the shell are welded to form a semi-finished battery, and the secondary battery is obtained through processes of liquid injection and the like.
The battery needs to seal the liquid injection hole in the top cover after liquid injection, so that the battery core is isolated from the external environment, the chemical environment required by the work of the battery is ensured, and the leakage of electrolyte can be prevented.
However, the sealing structure of the liquid injection hole of the conventional secondary battery cannot be repeatedly disassembled and assembled, cannot perform secondary liquid injection, and has poor expandability of the service life of the battery.
Disclosure of Invention
One of the main objects of the present application is to provide a battery filler hole sealing assembly, the filler hole of the battery can be opened for fluid replacement.
In order to achieve the purpose of the application, the following technical scheme is adopted in the application:
according to a first aspect of the present application, there is provided a battery pour hole seal assembly, including:
the top cover sequentially comprises a groove and a liquid injection hole which are communicated from the top end to the bottom end;
the sealing plug is arranged in the groove;
the sealing cover plate is arranged on the groove, the sealing plug is tightly pressed in the groove to seal the liquid injection hole, and the sealing cover plate is detachably connected with the top cover.
According to the battery liquid injection hole sealing assembly provided by the embodiment, the sealing cover plate is arranged on the groove to tightly press the sealing plug in the groove to seal the liquid injection hole, so that the sealing of the liquid injection hole is realized; can slowly consume electrolyte in the battery use, in addition external factors such as weeping, the battery can appear the dry problem of electrolyte and lead to electric core performance to descend using the later stage, and this application can be dismantled with the top cap through sealed apron and be connected, can open sealed apron and take out the sealing plug to can carry out the secondary filling through annotating the liquid hole when electric core lacks the liquid, guarantee the performance of battery, improve the life-span of battery.
According to an embodiment of the application, the sealing cover plate is screwed to the top cover.
This embodiment provides a battery annotates liquid hole seal assembly, through making sealed apron and top cap threaded connection, be convenient for sealed apron and top cap between the installation and the dismantlement, and then be convenient for open sealed apron and carry out the fluid infusion through annotating the liquid hole. In addition, through threaded connection, can be convenient for exert the packing force through sealed apron to the sealing plug that is arranged in the recess to make sealed apron compress tightly the sealing plug in the recess after sealed notes liquid hole, thereby the sealing plug receives the packing force and produces the deformation, with the inner wall in close contact with of recess, and then better to the sealed effect of annotating the liquid hole, avoided the condition of weeping appearing through annotating the liquid hole.
According to an embodiment of the application, the seal assembly further comprises:
the top cover is provided with a plurality of threaded holes, the sealing cover plate is provided with a plurality of through holes, and the plurality of screws penetrate through the through holes and are in threaded connection with the threaded holes respectively to fix the sealing cover plate on the top cover.
The battery filling hole sealing assembly provided by the embodiment passes through the through hole of the sealing cover plate and is in threaded connection with the threaded hole of the top cover through the screw, so that the sealing cover plate is fixed on the top cover, and the sealing cover plate is detachably connected with the top cover.
According to an embodiment of the present application, the sealing cover plate includes a pressing portion and a connecting portion, the pressing portion presses the sealing plug against the groove, and the connecting portion is in threaded connection with the top cover.
According to the battery liquid injection hole sealing assembly provided by the embodiment, the sealing plug is tightly pressed on the groove through the pressing part, so that the liquid injection hole is sealed; connecting portion and top cap threaded connection to can open sealed apron and take out the sealing plug, thereby can carry out the secondary through annotating the liquid hole and annotate when electric core lacks the liquid.
According to an embodiment of the application, still be equipped with heavy platform on the top cap, among the sealed apron at least with connecting portion that the top cap is connected accept in heavy platform.
The battery liquid filling hole sealing assembly provided by the embodiment can be used for positioning the sealing cover plate and the top cover in a manner that the connecting part connected with the top cover in the sealing cover plate is accommodated in the sinking platform, so that the position of the sealing cover plate on the top cover is prevented from deviating, and the compression effect of the sealing cover plate on the sealing plug is ensured.
According to an embodiment of the application, the sinking platform matches the size and shape of the connection part.
The battery filling hole sealing assembly provided by the embodiment can further improve the positioning effect of the connection between the sealing cover plate and the top cover by matching the size and the shape of the connecting part of the sinking platform and the sealing cover plate, so that the sealing cover plate is accurately positioned on the top cover.
According to an embodiment of the application, at least the surface of the connecting portion in the sealing cover plate is flush with the surface of the top cover.
The battery liquid filling hole sealing assembly provided by the embodiment can be used for judging whether the sealing cover plate is placed in place in the depth direction or not by observing whether the surface of the sealing cover plate and the surface of the top cover are flat or not, so that the installation precision of the sealing cover plate is ensured.
According to an embodiment of the application, when the sealing cover plate is not connected with the top cover, the top surface of the sealing plug in the groove protrudes out of the groove;
when the sealing cover plate is connected with the top cover, the pressing part is horizontal, or protrudes towards the outer side of the groove, or is sunken towards the inner side of the groove.
When the sealing plug is compressed by the sealing cover plate, the pressing part of the sealing cover plate and the sealing plug can have a larger contact area, and then the sealing cover plate can apply a stable pressing force to the sealing plug. The pressing part of the top cover protrudes towards the outer side of the opening of the groove to form a cylindrical surface matched with the sealing plug, so that when the sealing plug is pressed through the sealing cover plate, a larger contact area can be formed between the pressing part of the sealing cover plate and the sealing plug, the sealing cover plate can apply stable pressing force to the sealing plug, and meanwhile, under the condition that the sealing effect on the liquid injection hole is guaranteed, the sealing plug is prevented from generating excessive deformation, and the service life of the sealing plug is prolonged; the pressing part of the top cover protrudes towards the inner side of the opening of the groove to form a protruded cylindrical surface, so that when the sealing plug is pressed through the sealing cover plate, the pressing force of the sealing cover plate on the sealing plug can be further improved, and the sealing effect of the sealing plug on the liquid injection hole is further improved; the pressing part of the top cover is connected with the connecting part to form a plane plate, so that when the sealing plug is pressed through the sealing cover plate, the pressing force applied to the sealing plug by the sealing cover plate is improved, and the sealing effect of the sealing plug on the liquid injection hole is further improved.
According to an embodiment of the present application, at least one recess is provided on an inner wall of the groove, and at least one protrusion matching with the groove is provided on a surface of the sealing plug; or the inner wall of the groove is provided with at least one bulge, and the surface of the sealing plug is provided with at least one depression matched with the groove; when the sealing plug is disposed in the recess, the raised portion is located in the recessed portion.
This embodiment provides a liquid hole seal assembly is annotated to battery can form the location that the sealing plug was placed in the recess through bellying and depressed part, avoids cylindric sealing plug to rotate in the recess, can further improve the sealed effect to annotating the liquid hole through can cooperating with the depressed part through bellying, avoids appearing the condition of weeping.
According to an embodiment of the present application, at least one of the recessed portion and the protruding portion is disposed on two opposite sides of the liquid injection hole.
This embodiment provides a hole seal assembly is annotated to battery through being provided with at least one depressed part or bellying respectively on annotating the relative both sides in liquid hole, can further improve the sealed effect to annotating the liquid hole through bellying and depressed part cooperation, avoids appearing the condition of weeping.
According to an embodiment of the application, the sealing plug includes a sealing plug body and a plug portion provided on the sealing plug body, the plug portion is inserted into the liquid injection hole.
In the battery liquid filling hole sealing assembly provided by the embodiment, the plug part is arranged on the sealing plug, so that the sealing effect on the liquid filling hole can be further improved, and meanwhile, the plug part can be used for positioning the sealing plug when the sealing plug is installed in the groove.
According to an embodiment of the application, plug portion keeps away from one of sealing plug body serves and is equipped with the annular bulge, the bellied diameter of annular is greater than annotate the diameter in liquid hole.
According to the sealing assembly for the battery liquid filling hole, when the plug part is inserted into the liquid filling hole, the annular protrusion is extruded and deformed to shrink, so that the annular protrusion extends into the liquid filling hole, the attaching degree between the plug part and the side wall of the liquid filling hole is improved, and the sealing effect of the plug part on the liquid filling hole is further improved.
According to an embodiment of the application, the sealing plug is cylindrical and the recess is semi-cylindrical.
According to the battery liquid injection hole sealing assembly provided by the embodiment, the semi-cylindrical groove and the cylindrical sealing plug are adopted, so that the sealing plug can be in full contact with the groove after being subjected to pressing force, a large enough sealing surface is provided, and the sealing effect of the sealing plug on the liquid injection hole is improved.
According to an embodiment of the application, the sealing plug is a rubber sealing nail.
The battery filling hole sealing assembly provided by the embodiment adopts the rubber sealing nail to generate enough deformation under the pressing force of the sealing cover plate, so that the filling hole at the bottom of the groove is sealed, and the sealing effect of the filling hole is improved.
According to a second aspect of the present application, there is provided a battery comprising a battery pour hole sealing assembly according to any one of the embodiments described above.
In the battery provided by the embodiment, the sealing cover plate of the liquid injection hole sealing assembly is arranged on the groove to tightly press the sealing plug in the groove to seal the liquid injection hole, so that the sealing of the liquid injection hole is realized; can slowly consume electrolyte in the battery use, in addition external factors such as weeping, the battery can appear the dry problem of electrolyte and lead to electric core performance to descend using the later stage, and this application can be dismantled with the top cap through sealed apron and be connected, can open sealed apron and take out the sealing plug to can carry out the secondary filling through annotating the liquid hole when electric core lacks the liquid, guarantee the performance of battery, improve the life-span of battery, reduce the maintenance cost of battery.
According to a third aspect of the present application, there is provided a battery module including the above-described battery.
According to the battery module provided by the embodiment, the sealing cover plate of the battery liquid injection hole sealing assembly is arranged on the groove to tightly press the sealing plug in the groove to seal the liquid injection hole, so that the sealing of the liquid injection hole is realized; can slowly consume electrolyte in the battery use, in addition external factors such as weeping, the battery can appear the dry problem of electrolyte and lead to electric core performance to descend using the later stage, this application can be dismantled with the top cap through sealed apron and be connected, can open sealed apron and take out the sealing plug to can carry out the secondary filling through annotating the liquid hole when electric core lacks the liquid, guarantee the performance of battery, improve the life-span of battery module, reduce the maintenance cost of battery module.
According to a fourth aspect of the present application, a powered device is provided, which includes the above battery module.
According to the battery module provided by the embodiment, the sealing cover plate of the battery liquid injection hole sealing assembly is arranged on the groove to tightly press the sealing plug in the groove to seal the liquid injection hole, so that the sealing of the liquid injection hole is realized; can slowly consume electrolyte in the battery use, in addition external factors such as weeping, the battery can appear the dry problem of electrolyte and lead to electric core performance to descend using the later stage, this application can be dismantled with the top cap through sealed apron and is connected, can open sealed apron and take out the sealing plug, thereby can carry out the secondary filling through annotating the liquid hole when electric core lacks the liquid, guarantee the performance of battery, the life-span of improvement battery module, thereby the life-span of consumer has been improved, the maintenance cost of consumer has been reduced.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Drawings
The above and other features and advantages of the present application will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings.
FIG. 1 is a schematic view of a battery pour hole seal assembly according to an embodiment of the present application;
FIG. 2 is a schematic view of a battery pour hole seal assembly according to another embodiment of the present application;
FIG. 3 is a schematic view of a battery pour hole seal assembly according to another embodiment of the present application;
FIG. 4 is a schematic view of a battery pour hole seal assembly according to another embodiment of the present application;
FIG. 5 is a schematic view of a battery pour hole seal assembly according to another embodiment of the present application;
FIG. 6 is a schematic view of a sealing plug provided in one embodiment of the present application;
fig. 7 is a side view of the sealing plug shown in fig. 6.
Description of reference numerals:
10. a top cover; 110. a groove; 120. a liquid injection hole; 130. a threaded hole; 140. sinking a platform; 150. a recessed portion;
20. a sealing plug; 210. a sealing plug body; 220. a plug portion; 230. an annular projection; 240. a boss portion;
30. sealing the cover plate; 310. a pressing part; 320. a connecting portion; 330. a through hole;
40. and (4) screws.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus their detailed description will be omitted.
In the examples of this application, the term "plurality" means two or more unless explicitly defined otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "connected" may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the examples of the application can be understood by those skilled in the art according to specific situations.
In the description of the embodiments of the present application, it is to be understood that the terms "upper", "lower", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the referred devices or units must have a specific direction, be configured and operated in a specific orientation, and thus, should not be construed as limiting the embodiments of the present application.
In the description herein, the description of the term "one embodiment" means 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 embodiment or example. 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.
Embodiments of the present application first provide a battery pour hole sealing assembly, as shown in fig. 1-5, which includes: the sealing structure comprises a top cover 10, a sealing plug 20 and a sealing cover plate 30, wherein the top cover 10 sequentially comprises a groove 110 and a liquid injection hole 120 which are communicated from the top end to the bottom end (the thickness direction Z of the top cover 10), the sealing plug 20 is arranged in the groove 110, the sealing cover plate 30 is arranged on the groove 110, the sealing plug 20 is tightly pressed in the groove 110 to seal the liquid injection hole 120, and the sealing cover plate 30 is detachably connected with the top cover 10.
According to the battery liquid injection hole sealing assembly provided by the application, the sealing cover plate 30 is arranged on the groove 110 to tightly press the sealing plug 20 in the groove 110 to seal the liquid injection hole 120, so that the sealing of the liquid injection hole 120 is realized; can slowly consume electrolyte in the battery use, in addition external factors such as weeping, the dry problem of electrolyte can appear in the battery in the use later stage and lead to electric core performance to descend, this application can be dismantled with top cap 10 through sealed apron 30 and be connected, can open sealed apron 30 and take out sealing plug 20 to can carry out the secondary filling through annotating liquid hole 120 when electric core lacks the liquid, guarantee the performance of battery, improve the life-span of battery.
In the first embodiment of the present disclosure, as shown in fig. 1 to 5, the sealing plug 20 is cylindrical, the groove 110 is semi-cylindrical, the shape and size of the sealing plug 20 and the groove 110 are matched, the contact or clearance between the sealing plug 20 and the inner wall of the groove 110 after being placed in the groove 110 is small, and by using the semi-cylindrical groove 110 and the cylindrical sealing plug 20, the sealing plug 20 can be in full contact with the groove 110 after being pressed, a sealing surface with a large enough size is provided, and thus the sealing effect of the sealing plug 20 on the liquid filling hole 120 is improved.
Of course, the recess 110 may also be hemispherical, with the plug 20 being spherical; alternatively, the recess 110 is rectangular and the sealing plug 20 is also rectangular; alternatively, the recess 110 is in the shape of a semi-prism, and the sealing plug 20 is in the shape of a prism; or, the groove 110 is conical, the sealing plug 20 is conical, and the like, and the part of the sealing plug 20 located in the groove 110 is matched with the shape of the groove 110, so as to ensure that the sealing plug 20 and the groove 110 have enough contact surfaces, thereby ensuring that enough sealing surfaces are provided to avoid leakage of the liquid injection hole 120; any variation in the shapes of the sealing plug 20 and the recess 110 is within the scope of the present application.
The filling hole 120 is located at the bottom of the groove 110, and when the sealing plug 20 is placed in the groove 110, the filling hole 120 can be completely covered and sealed. Preferably, the pour hole 120 is located at the center of the bottom of the recess 110, so that the opening of the pour hole 120 has a large sealing surface in the circumferential direction, thereby ensuring the sealing effect on the pour hole 120.
In one embodiment of the present disclosure, the sealing plug 20 may be a rubber sealing nail. The rubber sealing nails can generate enough deformation under the pressing force of the sealing cover plate 30, so that the liquid injection hole 120 at the bottom of the groove 110 is sealed, and the sealing effect of the liquid injection hole 120 is improved; the concrete forming material of the sealing plug 20 is not limited in the present application, for example, the material may also be a plastic material, a soft metal material, etc., and all materials that can deform under the effect of the pressing force of the sealing cover plate 30 to seal the liquid injection hole 120 all belong to the protection scope of the present disclosure.
In the first embodiment of the present disclosure, as shown in fig. 1 to 5, the sealing cover plate 30 includes a pressing portion 310 and a connecting portion 320 located on both sides of the pressing portion 310, the sealing cover plate 30 is screwed with the top cover 10 through the connecting portion 320, and the pressing portion 310 abuts against the sealing plug 20 to apply a pressing force to press the sealing plug 20 in the groove 110.
Illustratively, as shown in fig. 1, when the sealing plug 20 is cylindrical, the groove 110 is semi-cylindrical, and after the sealing plug 20 is placed in the groove 110, half of the sealing plug 20 is located outside the opening of the groove 110, that is, the part of the sealing plug 20 protruding out of the groove 110 is semi-cylindrical, and the pressing portion 310 of the top cover 10 protrudes outside the opening of the groove 110 to form a cylindrical surface matching with the sealing plug 20, so that when the sealing plug 20 is pressed by the sealing cover plate 30, a larger contact area can be provided between the pressing portion 310 of the sealing cover plate 30 and the sealing plug 20, and the sealing cover plate 30 can apply a stable pressing force to the sealing plug 20, and at the same time, under the condition that the sealing effect of the liquid injection hole 120 is ensured, the sealing plug 20 is prevented from being deformed excessively, and the service life of the sealing plug 20 is prolonged.
Illustratively, as shown in fig. 2, when the sealing plug 20 is cylindrical, the groove 110 is semi-cylindrical, and after the sealing plug 20 is placed in the groove 110, half of the sealing plug 20 is located outside the opening of the groove 110, i.e. the part of the sealing plug 20 protruding out of the groove 110 is semi-cylindrical, and the pressing portion 310 of the top cover 10 is recessed towards the inside of the opening of the groove 110 to form an inwardly recessed cylindrical surface, so that when the sealing plug 20 is pressed by the sealing cover plate 30, the pressing force applied by the sealing cover plate 30 to the sealing plug 20 can be further increased, and the sealing effect of the sealing plug 20 on the liquid injection hole 120 can be further increased.
Illustratively, as shown in fig. 3, when the sealing plug 20 is cylindrical, the groove 110 is semi-cylindrical, and the sealing plug 20 is placed in the groove 110, half of the sealing plug 20 is located outside the opening of the groove 110, i.e. the part of the sealing plug 20 protruding from the groove 110 is semi-cylindrical, and the pressing part 310 of the top cover 10 is connected to the connecting part 320 to form a flat plate, so as to increase the pressing force applied by the sealing cover plate 30 to the sealing plug 20 when the sealing plug 20 is pressed by the sealing cover plate 30, and further increase the sealing effect of the sealing plug 20 to the injection hole 120.
In one embodiment of the present disclosure, the sealing cap 30 is threadedly coupled to the top cap 10. Through making sealed apron 30 and top cap 10 threaded connection, be convenient for the installation between sealed apron 30 and the top cap 10 and dismantle, and then be convenient for open sealed apron 30 and carry out the fluid infusion through annotating liquid hole 120. In addition, through threaded connection, the sealing cover plate 30 can apply pressing force to the sealing plug 20 positioned in the groove 110 conveniently, so that after the sealing cover plate 30 presses the sealing plug 20 in the groove 110 to seal the liquid injection hole 120, the sealing plug 20 is deformed by the pressing force and is in close contact with the inner wall of the groove 110, the sealing effect on the liquid injection hole 120 is better, and liquid leakage through the liquid injection hole 120 is avoided.
Of course, the sealing cover plate 30 and the top cover 10 can be detachably connected together by clamping, and any change in the detachable connection mode belongs to the protection scope of the present application.
Specifically, as shown in fig. 1 to 5, in the length direction Y of the top cover 10, threaded holes 130 are provided around the groove 110 of the top cover 10, through holes 330 are provided on the connecting portion 320 of the sealing cover plate 30, and screws 40 pass through the through holes 330 of the sealing cover plate 30 to be in threaded connection with the threaded holes 130 of the top cover 10, so as to fix the sealing cover plate 30 on the top cover 10, thereby realizing the detachable connection of the sealing cover plate 30 and the top cover 10.
Of course, the screw holes 130 may be provided around the groove 110 of the top cover 10 in the width direction X of the top cover 10, and the sealing cover 30 may be fixed to the top cover 10 by screwing the screws 40 into the screw holes 130 of the top cover 10 through the through holes 330 of the sealing cover 30.
In an embodiment of the present disclosure, as shown in fig. 1 to 5, a sunken platform 140 is further formed on the top cover 10 in the thickness direction of the top cover 10, and a connecting portion 320 of the sealing cover plate 30 connected to the top cover 10 is received in the sunken platform 140. By accommodating the connecting portion 320 of the sealing cover plate 30 connected to the top cover 10 in the sinking platform 140, the connecting position of the sealing cover plate 30 and the top cover 10 can be formed, and the position of the sealing cover plate 30 on the top cover 10 is prevented from being deviated, so that the pressing effect of the sealing cover plate 30 on the sealing plug 20 is ensured.
Further, the size and shape of the platform 140 and the connecting portion 320 of the sealing cover plate 30 are matched, so that the positioning function of the connection between the sealing cover plate 30 and the top cover 10 can be further improved, and the sealing cover plate 30 is accurately positioned on the top cover 10.
For example, as shown in fig. 1 to 5, in the length direction Y of the top cover 10, the sinking platforms 140 are located at two sides of the groove 110, the sinking platforms 140 at two sides of the groove 110 are rectangular, the two connecting portions 320 of the sealing cover plate 30 are also rectangular, the size of the connecting portion 320 may be slightly smaller than the size of the sinking platform 140, for example, a gap between the connecting portion 320 and the side wall of the sinking platform 140 is 1mm to 3mm, and the positioning accuracy of the sealing cover plate 30 is improved as much as possible while ensuring that the connecting portion 320 can be placed in the sinking platform 140.
Of course, the sinking platforms 140 at both sides of the groove 110 may also be rectangular, triangular, segmental or irregular, the shape and size of the sinking platforms 140 at both sides may be the same or different, and the two connecting parts 320 of the sealing cover plate 30 correspond to the shape and size of the corresponding sinking platform 140.
Here, it is also possible to form the sunken sections 140 in the opening circumference of the groove 110, i.e. the sealing cover 30 completely seals the sealing element in the groove 110, thereby further improving the holding and pressing effect on the sealing plug 20. For example, when the sunken sections 140 are formed in the opening circumference of the groove 110, the screw holes 130 may be formed in both sides of the groove 110 in the length direction Y and the width direction X of the top cap 10, the four through holes 330 may be correspondingly formed in the sealing cover 30, and then the sealing cover 30 may be fixed to the top cap 10 by the screws 40.
Wherein, in the thickness direction Z of top cap 10, the degree of depth of heavy platform 140 can be unanimous with the thickness of the connecting portion 320 of sealed apron 30 to guarantee the roughness on top cap 10 surface, can be through observing whether sealed apron 30 levels with top cap 10 surface simultaneously, thereby judge whether sealed apron 30 puts in place on the depth direction, guaranteed the installation accuracy of sealed apron 30.
As shown in fig. 1 to 5, the platform 140 is communicated with the groove 110, so as to further enhance the pressing effect of the pressing portion 310 on the sealing plug 20. Of course, the platform 140 and the groove 110 may be spaced apart on the top cover 10, and the sealing cover 30 may form a matching mechanism to allow the connection portion 320 to be located in the platform 140.
In the first embodiment of the disclosure, as shown in fig. 4, the recess 110 is provided with at least one recess 150 on the inner wall, and the sealing plug 20 comprises a sealing plug body 210 and at least one bulge 240 on the sealing plug body 210; or, at least one convex part is arranged on the inner wall of the groove 110, and at least one concave part matched with the groove is arranged on the surface of the sealing plug body 210; when the bore seal 20 is seated in the recess 110, the projection 240 is seated in the recess 150.
Illustratively, as shown in fig. 4, two protrusions 240 are provided on the sealing plug 20, two recesses 150 are provided on the inner wall of the recess 110, when the sealing plug 20 is located in the recess 110, the two protrusions 240 are respectively located in the two recesses 150, the protrusion 240 and the recess 150 can form a position for placing the sealing plug 20 in the recess 110, thereby preventing the cylindrical sealing plug 20 from rotating in the recess 110, and the sealing function of the liquid filling hole 120 can be further improved by matching the protrusion 240 with the recess 150, thereby preventing liquid leakage.
Further, as shown in fig. 4, two recessed portions 150 are located on both sides of the liquid inlet 120 in the longitudinal direction Y of the top cover 10, so that the sealing function of the liquid inlet 120 can be further improved by the engagement of the protruding portion 240 and the recessed portions 150, and liquid leakage can be avoided.
Further, as shown in fig. 4, in the width direction X of the top cover 10, the recessed portion 150 penetrates through both ends of the bottom of the groove 110, and the length of the recessed portion 150 is the same as that of the protruding portion 240, so that the sealing function of the liquid filling hole 120 can be further improved by the cooperation of the protruding portion 240 and the recessed portion 150, and liquid leakage is avoided.
In the first embodiment of the present disclosure, as shown in fig. 5, the sealing plug 20 includes a sealing plug body 210 and a plug portion 220 provided on the sealing plug body 210, and the plug portion 220 is inserted into the pour hole 120. By providing the plug portion 220 on the sealing plug 20, the sealing function of the pour hole 120 can be further improved, and the plug portion 220 can be used to position the sealing plug 20 when it is mounted in the recess 110.
Further, as shown in fig. 6 and 7, an annular protrusion 230 is provided on the end of the plug part 220 away from the sealing plug body 210, and the diameter of the annular protrusion 230 is larger than that of the pour hole 120. When the plug part 220 is inserted into the liquid filling hole 120, the annular protrusion 230 is squeezed, deformed and contracted so as to extend into the liquid filling hole 120, so that the fitting degree between the plug part 220 and the side wall of the liquid filling hole 120 is improved, and the sealing effect of the plug part 220 on the liquid filling hole 120 is further improved.
One or more annular protrusions 230 may be provided on the plug portion 220, and the provision of the plurality of annular protrusions 230 can further improve the sealing effect of the plug portion 220 on the pour hole 120.
The embodiment of the application also provides a battery, which comprises the battery liquid injection hole sealing assembly, and the battery can be a lithium ion battery. According to the battery provided by the application, the sealing cover plate of the liquid injection hole sealing assembly is arranged on the groove, the sealing plug is tightly pressed in the groove to seal the liquid injection hole, and the sealing of the liquid injection hole is realized; can slowly consume electrolyte in the battery use, in addition external factors such as weeping, the battery can appear the dry problem of electrolyte and lead to electric core performance to descend using the later stage, and this application can be dismantled with the top cap through sealed apron and be connected, can open sealed apron and take out the sealing plug to can carry out the secondary filling through annotating the liquid hole when electric core lacks the liquid, guarantee the performance of battery, improve the life-span of battery, reduce the maintenance cost of battery.
The embodiment of the application also provides a battery module, and the battery module comprises the battery. The battery module can be a battery pack, and the battery pack can be used in electric equipment such as an energy storage device and a vehicle. According to the battery module, the sealing cover plate of the battery liquid injection hole sealing assembly is arranged on the groove, the sealing plug is tightly pressed in the groove to seal the liquid injection hole, and the sealing of the liquid injection hole is realized; can slowly consume electrolyte in the battery use, in addition external factors such as weeping, the battery can appear the dry problem of electrolyte and lead to electric core performance to descend using the later stage, this application can be dismantled with the top cap through sealed apron and be connected, can open sealed apron and take out the sealing plug to can carry out the secondary filling through annotating the liquid hole when electric core lacks the liquid, guarantee the performance of battery, improve the life-span of battery module, reduce the maintenance cost of battery module.
The embodiment of the application also provides electric equipment, and the electric equipment comprises the battery module. The electric equipment can be an energy storage device, a vehicle and the like. According to the electric equipment, the sealing cover plate of the battery liquid injection hole sealing assembly is arranged on the groove, the sealing plug is tightly pressed in the groove to seal the liquid injection hole, and the sealing of the liquid injection hole is realized; can slowly consume electrolyte in the battery use, in addition external factors such as weeping, the battery can appear the dry problem of electrolyte and lead to electric core performance to descend using the later stage, this application can be dismantled with the top cap through sealed apron and is connected, can open sealed apron and take out the sealing plug, thereby can carry out the secondary filling through annotating the liquid hole when electric core lacks the liquid, guarantee the performance of battery, improve the life-span of battery module, thereby the life-span of consumer has been improved, the maintenance cost of consumer has been reduced.
The above description is only a preferred embodiment of the claimed embodiments and is not intended to limit the claimed embodiments, and various modifications and changes may be made to the claimed embodiments by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the applied embodiment shall be included in the protection scope of the applied embodiment.
Claims (17)
1. A battery pour hole seal assembly, comprising:
the top cover sequentially comprises a groove and a liquid injection hole which are communicated from the top end to the bottom end;
the sealing plug is arranged in the groove;
the sealing cover plate is arranged on the groove, the sealing plug is tightly pressed in the groove to seal the liquid injection hole, and the sealing cover plate is detachably connected with the top cover.
2. The seal assembly of claim 1, wherein the seal cover plate is threadably connected to the top cap.
3. The seal assembly of claim 2, further comprising:
the top cover is provided with a plurality of threaded holes, the sealing cover plate is provided with a plurality of through holes, and the plurality of screws penetrate through the through holes respectively to be in threaded connection with the threaded holes, so that the sealing cover plate is fixed on the top cover.
4. The seal assembly of claim 1, wherein the seal cover includes a compression portion that compresses the seal plug against the recess and a connecting portion that is threadably coupled to the cap.
5. The seal assembly of claim 4, wherein the top cap further defines a counter-sink, and wherein at least the connecting portion of the seal cover plate is received within the counter-sink.
6. The seal assembly of claim 5, wherein the counter is sized and shaped to match the connecting portion.
7. The seal assembly of claim 5, wherein an outer surface of at least the connecting portion of the seal cover plate is flush with an outer surface of the top cap.
8. The seal assembly of claim 4, wherein the top surface of the sealing plug in the recess protrudes from the recess when the sealing cover is not attached to the top cover;
when the sealing cover plate is connected with the top cover, the pressing part is horizontal, or protrudes towards the outer side of the groove, or is sunken towards the inner side of the groove.
9. A sealing assembly according to claim 1, wherein the recess is provided with at least one recess in an inner wall thereof and the bore seal is provided with at least one protrusion on a surface thereof which mates with the recess; or the inner wall of the groove is provided with at least one bulge, and the surface of the sealing plug is provided with at least one depression matched with the groove; when the sealing plug is disposed in the recess, the raised portion is located in the recess.
10. The seal assembly of claim 9, wherein the pour spout is provided with at least one of the recessed portion or the raised portion on opposite sides thereof.
11. The seal assembly of claim 1, wherein the sealing plug comprises a sealing plug body and a plug portion provided on the sealing plug body, the plug portion being inserted into the injection hole.
12. A closure assembly as claimed in claim 11, wherein the end of the plug portion remote from the plug body is provided with an annular projection, the diameter of the annular projection being greater than the diameter of the pour hole.
13. A seal assembly according to claim 1 wherein the bore seal is cylindrical and the recess is semi-cylindrical.
14. The seal assembly of claim 1, wherein the sealing plug is a rubber sealing nail.
15. A battery comprising a battery pour hole sealing assembly according to any one of claims 1 to 14.
16. A battery module comprising the battery according to claim 15.
17. An electric device characterized by comprising the battery module according to claim 16.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211084510.2A CN115347337A (en) | 2022-09-06 | 2022-09-06 | Battery filling hole sealing assembly, battery module and electric equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211084510.2A CN115347337A (en) | 2022-09-06 | 2022-09-06 | Battery filling hole sealing assembly, battery module and electric equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115347337A true CN115347337A (en) | 2022-11-15 |
Family
ID=83955595
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211084510.2A Withdrawn CN115347337A (en) | 2022-09-06 | 2022-09-06 | Battery filling hole sealing assembly, battery module and electric equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115347337A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115764202A (en) * | 2022-12-02 | 2023-03-07 | 蜂巢能源科技股份有限公司 | Batteries, battery modules and electrical equipment |
| WO2024169140A1 (en) * | 2023-02-13 | 2024-08-22 | 湖北亿纬动力有限公司 | Battery and battery pack |
-
2022
- 2022-09-06 CN CN202211084510.2A patent/CN115347337A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115764202A (en) * | 2022-12-02 | 2023-03-07 | 蜂巢能源科技股份有限公司 | Batteries, battery modules and electrical equipment |
| WO2024169140A1 (en) * | 2023-02-13 | 2024-08-22 | 湖北亿纬动力有限公司 | Battery and battery pack |
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Application publication date: 20221115 |