CN218334253U - Battery end cover assembly, battery pack and electric equipment - Google Patents
Battery end cover assembly, battery pack and electric equipment Download PDFInfo
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- CN218334253U CN218334253U CN202222180010.0U CN202222180010U CN218334253U CN 218334253 U CN218334253 U CN 218334253U CN 202222180010 U CN202222180010 U CN 202222180010U CN 218334253 U CN218334253 U CN 218334253U
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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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Abstract
The application discloses battery end cover subassembly, battery package and consumer relates to battery packaging technical field. The battery end cap assembly includes: a cover plate, a mounting member and a sealing plug. The cover plate is provided with a liquid injection hole and a counter sink hole, the counter sink hole is arranged on the liquid injection hole, and the counter sink hole is provided with a bottom surface. The mounting member includes a body having a central through hole; the upper end of the body is provided with at least one projection extending radially inwardly along the central through hole. The sealing plug comprises a plug column and a plug cap with a cross section larger than that of the plug column, and a gap is arranged in the direction parallel to the cross section of the plug cap towards the center. The mounting piece is fixed in the counter bore, the plug column is in sealing fit with the liquid injection hole, and the position of the lug corresponds to the position of the notch before assembly; after assembly, the projection is staggered with the notch, so that the projection is pressed on the top surface of the plug cap of the sealing plug. Through the design, the sealing between the sealing plug and the cover plate is convenient to disassemble, and secondary supplementary liquid injection can be performed.
Description
Technical Field
The application relates to the technical field of battery packaging, in particular to a battery end cover assembly, a battery pack and electric equipment.
Background
The electrolyte in the battery is usually injected through an injection port formed in the cover plate, a seal needs to be arranged on the injection port after the injection is completed, and the injection port is sealed by a sealing element and then is sealed by laser welding, so that the leakage phenomenon cannot occur in the use process of the battery.
In the actual use process of the battery, along with the increase of the service time, the internal electrolyte can be reduced to the standard level, and the battery can be ensured to continue working by injecting the electrolyte. In addition, the problem that the liquid injection amount does not reach the standard can occur in the processing process, rework and liquid injection operation are also needed, and the existing process uses a laser welding process to seal the liquid injection port, so that the sealing plug cannot be disassembled and liquid injection cannot be carried out; or the liquid injection can be completed only by damaging the cover plate after the disassembly, which is not beneficial to secondary liquid injection.
SUMMERY OF THE UTILITY MODEL
It is a primary object of the present application to overcome at least one of the above-mentioned drawbacks of the prior art and to provide a battery end plate and a battery that can be disassembled in a sealing structure to facilitate secondary liquid injection of the battery.
In order to achieve the purpose, the following technical scheme is adopted in the application:
according to one aspect of the present application, a battery end cap assembly is provided that includes a cover plate, a mounting member, and a sealing plug. The cover plate is provided with a liquid injection hole and a counter sink hole, the counter sink hole is arranged on the liquid injection hole, and the counter sink hole is provided with a bottom surface. The mounting member includes a body having a central through hole; the upper end of the body is provided with a projection extending radially inward along the central through hole. The sealing plug comprises a plug column and a plug cap with a cross section larger than that of the plug column, and a gap is arranged in the direction parallel to the cross section of the plug cap towards the center. The mounting piece is fixed in the counter bore, the plug is in sealing fit with the liquid injection hole, and the convex block corresponds to the notch before assembly; after assembly, the projection and the notch are staggered, so that the projection is pressed on the top surface of the plug cap of the sealing plug.
The application provides a battery end cover subassembly, through sealing member and notes liquid hole sealing connection to the lug passes the breach and presses the top surface of locating the stopper cap, can realize that seal structure can dismantle, is convenient for annotate the secondary of battery liquid.
According to one embodiment of the application, the mounting member is integrally formed with the cover plate.
In this application, through the integrated into one piece of installed part with the apron, can simplify the process to make installed part and apron firm in connection, can strengthen the intensity of whole structure.
According to one embodiment of the application, the plug is integrally formed with the plug cap.
In this application, plunger and stopper cap integrated into one piece can make the intensity between plunger and the stopper cap higher, simplifies process flow.
According to one embodiment of the application, the plug and the plug cap are arranged in a split mode, wherein the plug is a rubber nail, and the plug cap is a metal cover.
In this application, through stopper post and stopper cap components of a whole that can function independently design to the stopper post sets up to gluing the nail, and the stopper cap is the metal covering, and the metal fillings fall into when can avoiding the installation and annotate in the liquid hole.
According to one embodiment of the present application, the battery end cap assembly further includes a seal ring disposed between the plug cap and the bottom surface of the counter sink bore.
In this application, through set up the sealing washer between the bottom surface in stopper cap and heavy platform hole, can further strengthen sealed effect.
According to one of the embodiments of the application, the stopper cap has a lower surface facing the bottom surface, the thickness T of the sealing ring being greater than the distance between the lower surface and the bottom surface.
In this application, the thickness T of sealing washer is greater than the face of gag facing the bottom surface and the distance between the bottom surface, can strengthen sealed effect further.
According to one embodiment of the application, the top end of the plug cap is also provided with a cross groove, a straight groove, a round groove or a polygonal groove.
In this application, the setting in cross recess, straight line groove, circular slot or multilateral groove can make things convenient for anchor clamps to snatch the rotation in order to realize dismantling the sealing plug.
According to one embodiment of the application, the plug cap further comprises a butting part, and the butting part is arranged on two sides of the notch.
In this application, the abutting portion can abut against the projection of the mounting member, so that the sealing plug is held on the mounting member.
According to one embodiment of the application, the plug is in interference fit with the liquid injection hole, and the interference magnitude of the plug and the liquid injection hole is 0.15-0.25mm.
In the application, the plug and the liquid injection hole are in interference fit, and the interference magnitude of the plug and the liquid injection hole is 0.15-0.25mm, so that the plug and the liquid injection hole can be sealed, and the electrolyte is prevented from leaking; and the sealing is not too tight and is difficult to disassemble.
According to one embodiment of the application, the lugs of the mounting part are two and are oppositely arranged.
In this application, through the lug of two relative settings, can guarantee that the lug presses the stability of locating on the top surface of sealing plug after the installation, realize that seal structure can dismantle and sealed good.
According to one embodiment of the application, the mounting is ring-shaped.
In this application, adopt the ring installation spare, can realize all-round sealed.
According to another aspect of the present application, a battery is provided, comprising a housing, a cell assembly and a cell end cap assembly, the cell end cap assembly comprising the above cell end cap assembly.
The battery provided by the application adopts the battery end cover assembly, can realize disassembly and secondary sealing, realizes convenient installation and good sealing performance, and can prevent battery leakage when the secondary liquid injection of the battery is facilitated.
According to a third aspect of the present application, there is provided a battery pack including a battery pack, wherein the battery pack includes the above-described battery.
According to a fourth aspect of the present application, there is provided an electric device including the battery pack described above.
According to the technical scheme, the battery end cover assembly has the advantages and positive effects that:
the application provides a battery end cover subassembly, including apron, installed part and sealing plug. The cover plate is provided with a liquid injection hole and a counter sink hole, the liquid injection hole is used for injecting electrolyte into the battery, the counter sink hole is formed in the upper surface of the liquid injection hole, and the counter sink hole is provided with a bottom surface. The arrangement of the counter sink hole provides a certain space for arranging sealing. The mount includes a body having a central through hole; the central through hole is convenient for the sealing plug to pass through. The upper end of the body is provided with at least one projection extending radially inwardly along the central through hole. The projection can press against the plug cap of the sealing plug, so that the stability of the sealing can be enhanced. The sealing plug comprises a plug column and a plug cap with a cross section larger than that of the plug column, and a gap is arranged in the direction parallel to the cross section of the plug cap towards the center. The setting of breach can realize that the lug passes behind the breach and presses and establish on the top surface of stopper cap, can realize that seal structure installation is dismantled conveniently. Before assembly, the lug corresponds to the notch; after assembly, the projection and the notch are staggered, so that the projection is pressed on the top surface of the plug cap of the sealing plug. The sealing plug is connected with the liquid injection hole in a sealing mode, and leakage of electrolyte can be avoided. The design of lug and breach and stopper cap can realize sealed dismantling, is convenient for carry out the secondary to the battery and annotates the liquid.
The battery that this application provided, including casing, electric core subassembly and battery end cover subassembly, the battery end cover subassembly includes foretell battery end cover subassembly, easy and simple to handle when the secondary annotates liquid to can not destroy seal structure, annotate sealed respond well after the liquid.
Drawings
Various objects, features and advantages of the present application will become more apparent from the following detailed description of preferred embodiments of the present application when taken in conjunction with the accompanying drawings. The drawings are merely exemplary of the present application and are not necessarily drawn to scale. In the drawings, like reference characters designate the same or similar parts throughout the different views. Wherein:
fig. 1 is an exploded perspective view of the cell end cap assembly of the present application.
Fig. 2 is a front view of fig. 1.
Fig. 3 is a schematic top view of the cell end cap assembly of the present application.
Fig. 4 is a schematic bottom view of the cell end cap assembly of the present application.
FIG. 5 is a schematic left side view of the cell end cap assembly of the present application shown in FIG. 4
Fig. 6 isbase:Sub>A sectional viewbase:Sub>A-base:Sub>A of fig. 4.
Fig. 7 is a sectional view B-B of fig. 5.
Fig. 8 is a perspective view of a cover plate of the battery end cap assembly of the present application.
Fig. 9 is a front view of the cover plate shown in fig. 8.
Fig. 10 is a perspective view of a mounting member of the cell end cap assembly of the present application.
FIG. 11 is a top view of the mount of FIG. 10.
Fig. 12 is a cross-sectional view taken along line C-C of fig. 11.
Fig. 13 is a cross-sectional view taken along line D-D of fig. 11.
Fig. 14 is a perspective view of a sealing plug of the cell end cap assembly of the present application.
Fig. 15 is a schematic top view of the sealing plug.
Fig. 16 is a cross-sectional view E-E of fig. 15.
Fig. 17 is a sectional view F-F of fig. 15.
Fig. 18 is a schematic diagram of the construction of a seal ring of the cell end cap assembly of the present application.
Fig. 19 is a schematic view of the structure of the battery of the present application.
The reference numerals are illustrated below:
10. a battery end cap assembly;
11. a cover plate;
111. a liquid injection hole;
112. sinking a platform hole;
1121. a bottom surface;
1122. a side surface;
12. a mounting member;
121. a body;
122. a bump;
13. a sealing plug;
131. a plug;
132. plugging the cap;
133. a notch;
14. a seal ring;
20. a housing;
30. a battery cell assembly;
100. a battery.
And T, the thickness of the sealing ring.
Detailed Description
Exemplary embodiments that embody the features and advantages of the present application are described in detail below. As will be realized, the application is capable of other and different embodiments, and its several details are capable of modifications in various obvious respects, all without departing from the invention, and the description and drawings are to be regarded as illustrative in nature, and not as restrictive.
In the following description of various exemplary embodiments of the present application, reference is made to the accompanying drawings, which form a part hereof, and in which is shown by way of illustration various exemplary structures, systems, and steps in which aspects of the application may be practiced. It is to be understood that other specific arrangements of parts, structures, example devices, systems, and steps may be utilized, and structural and functional modifications may be made without departing from the scope of the present application. When introducing elements/components/etc. described and/or illustrated herein, the terms "first," "second," and "third," etc. are used to indicate that there are one or more of the elements/components/etc. The terms "comprising," "including," and "having" are intended to be inclusive and mean that there may be additional elements/components/etc. other than the listed elements/components/etc.
As shown in fig. 1 to 5, the battery end cap assembly 10 of the present application includes a cap plate 11, a mounting member 12, and a sealing plug 13. As shown in FIGS. 6 to 17, the lid plate 11 has a pour hole 111 and a counter sink hole 112, the counter sink hole 112 is provided coaxially with the pour hole 111 and above the pour hole 111, and the counter sink hole 112 has a bottom surface 1121 (see FIGS. 8 and 9). A mounting member 12 including a body 121, the body 121 having a central through hole; the upper end of the body is provided with a lug 122 (see fig. 10 to 13) extending radially inwardly of the central through hole. The sealing plug 13, including the plug 131 and the plug cap 132 having a larger cross section than the plug 131, is provided with a notch 133 (see fig. 14) in the plug cap 132 toward the center in a direction parallel to the cross section. In this embodiment, the stopper cap is cylindrical and the notch 133 is arranged in a radial direction of the stopper cap. The mounting piece 12 is fixed in the sinking platform hole 112, the plug 131 is in sealing fit with the liquid injection hole 111, and before assembly, the lug 122 corresponds to the notch 133; after assembly, the projection 122 is offset from the notch 133 so that the projection 122 is pressed against the top surface of the cap 132 of the sealing plug 13. By adopting the design of the notch and the lug, secondary sealing can be realized, the sealing is detachable, and secondary liquid injection of the battery is convenient to realize.
In the present embodiment, the mounting member 12 and the cover plate 11 are separately processed, and the mounting member 12 is fixed to the cover plate 11 by welding or the like. In other embodiments, the mounting member 12 is integrally formed with the cover plate 11.
In this embodiment, the plug 131 is integrally formed with the plug cap 132. The plunger and the plug cap are integrally formed, so that the strength between the plunger and the plug cap is higher, and the process flow can be simplified.
In the present embodiment, the plug 131 and the plug cap 132, which are integrally formed, may be made of an elastic material, such as rubber, and further, may be made of silicone or the like.
In other embodiments, the plug 131 is provided separately from the plug cap 132, wherein the plug 131 is a rubber nail, and the plug cap 132 is a metal cover. The plug 131 and the plug cap 132 may be fixed together by adhesion or the like. The plug cap can be an aluminum cover, and metal chips can be prevented from falling into the liquid injection hole during installation.
It should be noted that the plug cap 132 needs to have a shape that matches the shape of the central through hole of the mounting member 12 and that enables the plug cap 132 to rotate along the hole wall in the central through hole.
In this embodiment, the battery end cap assembly 10 further includes a sealing ring 14, the sealing ring 14 being disposed between the plug cap 132 and the bottom surface 1121 of the counterbore 112. The sealing effect can be further enhanced.
As shown in fig. 6, 7 and 18, in the present embodiment, the plug cap 132 has a lower surface facing the bottom surface 1121, and the thickness T of the seal ring 14 is greater than the distance between the lower surface of the plug cap 132 and the bottom surface 1121. After the installation, the sealing ring is extruded from top to bottom, so that better sealing is realized.
In this embodiment, the top end of the plug cap 132 is further provided with a cross groove, a straight groove, a circular groove or a polygonal groove. The slotted top end of the plug cap 132 is provided to facilitate rotation of the sealing plug 13 for sealing or removal.
In this embodiment, the plug cap 132 further includes a supporting portion disposed on two sides of the notch 133. The abutting part can abut against the convex block of the mounting part, so that the sealing plug is pressed under the convex block of the mounting part, and firm sealing is realized.
In this embodiment, the plug 131 is in interference fit with the injection hole 111, so that the plug and the injection hole can be sealed, and the electrolyte can be prevented from leaking. The interference between the plug 1321 and the injection hole 111 is 0.15-0.25mm. The interference magnitude of the plug and the liquid injection hole is 0.15-0.25mm, and if the interference magnitude is too small, liquid leakage may occur; if the interference is too large, the sealing is too tight and the disassembly is difficult.
In the present embodiment, the two projections 122 of the mounting member 12 are oppositely disposed (see fig. 10). The oppositely arranged lugs can ensure that the pressure applied to the plug cap 132 of the sealing plug 13 by the lugs 122 after assembly is relatively uniform, and the stability of the sealing structure is ensured.
It should be noted that the number of the bumps may be one or more. When only one projection is arranged, the projection is usually large, and the corresponding gap on the sealing plug 13 is also large, so that the effect that the gap avoids the projection can be realized. When the lug sets up a plurality ofly, can set up less lug usually, even or uneven distribution all can, the breach on the corresponding sealing plug 13 still need realize the breach and dodge the effect of lug this moment to need a plurality of breachs to dodge a plurality of corresponding lugs simultaneously, can not have lug and breach interference phenomenon.
In this embodiment, the mounting member 12 is annular. And may be circular, square, etc., as long as the central through hole of the mounting member 12 is secured. In other embodiments, the mounting member 12 may have two opposite arcs. The mounting member 12 may not be provided, and the bump 122 may be directly molded or welded or bonded to the side surface 1122 of the counter sink hole 112 of the cover plate 11, and in this case, a certain distance needs to be ensured between the bump 122 and the bottom surface 1121.
As shown in fig. 19, the present application further provides a battery 100, the battery 100 includes a housing 20, a cell assembly 30 and a battery end cap assembly 10, the housing 20 has an opening for accommodating the cavity and communicating the accommodating cavity with the external space, the cell assembly 30 is located in the accommodating cavity and fixedly connected to the bottom of the housing 20, the battery end cap assembly 10 is fixedly connected to the housing 20 and seals the opening of the housing 20, and the battery end cap assembly 10 is further connected to the cell assembly 30.
In the above embodiment, in combination with the above battery end cap assembly 10, since the sealing plug is detachably fixed on the cover plate, the battery end cap assembly 10 facilitates the subsequent replenishment of the electrolyte to the battery 100, and facilitates the secondary use of the battery 100.
The present application also provides a battery pack including a battery pack, wherein the battery pack includes the battery shown in fig. 9.
The application also provides an electric device, which adopts the battery pack. The electric equipment may take various forms, for example, a mobile phone, a portable device, a notebook computer, a battery car, a ship, a spacecraft, an electric toy, an electric power tool, and the like, for example, the spacecraft includes an airplane, a rocket, a space shuttle, a spacecraft, and the like, the electric toy includes a stationary or mobile electric toy, for example, a game machine, an electric car toy, an electric ship toy, an electric airplane toy, and the like, and the electric power tool includes a metal cutting electric tool, an abrasive electric tool, an assembly electric tool, and an electric tool for railways, for example, an electric drill, an electric grinder, an electric wrench, an electric screwdriver, an electric hammer, an electric impact drill, a concrete vibrator, and an electric planer.
It should be noted herein that the cell end cap assemblies shown in the drawings and described herein are merely illustrative of a few of the many types of cell end cap assemblies that the principles of the present application can be employed. It should be clearly understood that the principles of the present application are in no way limited to any of the details or any of the components of the cell end cap assembly shown in the drawings or described in this specification.
The foregoing is a detailed description of several exemplary embodiments of the cell end cap assembly set forth herein, and the following is a description of the use of the cell end cap assembly set forth herein.
With reference to fig. 1 to 19, the battery end cap assembly proposed by the present application is used as follows:
during installation, the installation part is installed on the sinking platform hole of the cover plate in a welding mode, a bonding mode and the like, and a sealing ring can be arranged between the installation part and the sinking platform hole. Then the position of the gap of the sealing plug is aligned with the position of the convex block of the mounting part, the sealing plug is pressed downwards, the plug of the sealing plug is pressed into the liquid injection hole, the plug of the sealing plug and the liquid injection hole are in interference fit, and the interference magnitude is 0.15-0.25mm, so that sealing is performed. Then the sealing plug is rotated, so that the positions of the notch and the bump are staggered, and at the moment, the upper surfaces of the abutting parts at the two sides of the notch abut against the lower surface of the bump of the mounting part, so that the bump is pressed on the top surface of the plug cap of the sealing plug to be sealed.
During the dismantlement, rotate the sealing plug for the breach of sealing plug is corresponding with the lug position of installed part, and the lug that holds portion and installed part of here sealing plug breaks away from to hold, and the lug of installed part can pass through the breach of sealing plug, also namely the sealing plug can dodge the lug through the breach, realizes that the sealing plug takes out from the installed part, thereby realizes seal structure's dismantlement.
Through the use of the above-mentioned battery end plate of this application, can obtain the end plate of this application, adopt can realize that the secondary is sealed and detachable is sealed, sealed respond well and can realize that the secondary of battery annotates liquid.
In summary, the battery end cap assembly provided by the present application includes a cover plate, a mounting member, and a sealing plug. The cover plate is provided with a liquid injection hole and a counter sink hole, the liquid injection hole is used for injecting electrolyte into the battery, the counter sink hole is formed in the upper surface of the liquid injection hole, and the counter sink hole is provided with a bottom surface. The arrangement of the counter sink hole provides a certain space for arranging sealing. The mount includes a body having a central through hole; the central through hole is convenient for the sealing plug to pass through. The upper end of the body is provided with a projection extending radially inward along the central through hole. The projection can press the plug cap of the sealing plug, so that the stability of sealing can be enhanced. The sealing plug comprises a plug column and a plug cap with a cross section larger than that of the plug column, and a gap is arranged towards the center of the plug cap along the direction parallel to the cross section. The setting of breach can realize that the lug passes behind the breach and presses and establish on the top surface of stopper cap, can realize that seal structure installation is dismantled conveniently. Before assembly, the lug corresponds to the notch; after assembly, the projection is staggered with the notch, so that the projection is pressed on the top surface of the plug cap of the sealing plug. The sealing plug is connected with the liquid injection hole in a sealing mode, and leakage of electrolyte can be avoided. The design of lug and breach and stopper cap can realize sealed dismantling, is convenient for carry out the secondary to the battery and annotates the liquid. The setting of sealing washer can further strengthen sealed effect and do not influence seal structure's dismantlement.
The battery that this application provided, including foretell battery end cover subassembly, sealed respond well, seal structure can dismantle, can supply electrolyte, realizes the secondary of battery and uses to easy and simple to handle need not destroy battery end cover subassembly.
Exemplary embodiments of the cell end cap assembly and cell set forth herein are described and/or illustrated in detail above. The embodiments of the application are not limited to the specific embodiments described herein, but rather, components and/or steps of each embodiment may be utilized independently and separately from other components and/or steps described herein. Each component and/or step of one embodiment can also be used in combination with other components and/or steps of other embodiments. When introducing elements/components/etc. described and/or illustrated herein, the articles "a," "an," and "the" are intended to mean that there are one or more of the elements/components/etc.
Embodiments of the present application are not limited to the specific embodiments described herein, but rather, components of each embodiment may be utilized independently and separately from other components described herein. Each component of one embodiment can also be used in combination with other components of other embodiments. In the description of the embodiments of the present application, it is to be understood that the terms "upper", "lower", "left", "right", "front", "rear", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the embodiments of the present application and simplifying the description, but 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 appearances of the phrases "one embodiment," "some embodiments," "other embodiments," or the like, are not necessarily limited to the particular features, structures, materials, or characteristics described in connection with the embodiment or example, but are included in at least one embodiment or example of the application. 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.
In embodiments, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more unless explicitly defined otherwise. The terms "mounted," "connected," "fixed," and the like are used broadly and should be construed to include, for example, "connected" may be a fixed connection, a detachable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. Specific meanings of the above terms in the examples can be understood by those of ordinary skill in the art according to specific situations.
The above description is only a preferred embodiment of the application example, and is not intended to limit the application example, and various modifications and changes may be made to the application example 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 (14)
1. A battery end cap assembly, comprising: the method comprises the following steps:
the cover plate is provided with a liquid injection hole and a counter sink hole, the counter sink hole is arranged above the liquid injection hole, and the counter sink hole is provided with a bottom surface;
a mount comprising a body having a central through hole; the upper end part of the body is provided with at least one lug which extends inwards along the radial direction of the central through hole;
the sealing plug comprises a plug column and a plug cap with a cross section larger than that of the plug column, and a gap is formed in the center of the plug cap along a direction parallel to the cross section;
the mounting piece is fixed in the counter bore, the plug is in sealing fit with the liquid injection hole, and the convex block corresponds to the notch before assembly; after assembly, the projection and the notch are staggered, so that the projection is pressed on the top surface of the plug cap of the sealing plug.
2. The battery end cap assembly of claim 1, wherein: the mounting member and the cover plate are integrally formed.
3. The battery end cap assembly of claim 1, wherein: the plug column and the plug cap are integrally formed.
4. The battery end cap assembly of claim 1, wherein: the plug column and the plug cap are arranged in a split mode, wherein the plug column is a rubber nail, and the plug cap is a metal cover.
5. The battery end cap assembly of claim 1, wherein: still include the sealing washer, the sealing washer sets up the stopper cap with sink the platform hole between the bottom surface.
6. The battery end cap assembly of claim 5, wherein the plug cap has a lower surface facing the bottom surface, and the seal ring has a thickness T greater than a distance between the lower surface and the bottom surface.
7. The battery end cap assembly of claim 1, wherein: the top end of the plug cap is also provided with a cross groove, a straight groove, a circular groove or a polygonal groove.
8. The battery end cap assembly of claim 1, wherein: the plug cap further comprises abutting parts which are arranged on two sides of the notch.
9. The battery end cap assembly of claim 1, wherein the plug is in interference fit with the pour hole, and the interference between the plug and the pour hole is 0.15-0.25mm.
10. The battery end cap assembly of claim 1, wherein said projections of said mounting member are two, oppositely disposed.
11. The battery end cap assembly of claim 1, wherein the mounting member is annular.
12. A battery comprising a housing, a cell assembly and a battery end cap assembly, wherein the battery end cap assembly comprises the battery end cap assembly of any one of claims 1-11.
13. A battery pack comprising a battery pack, wherein the battery pack comprises the battery of claim 12.
14. An electric device comprising the battery pack according to claim 13.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222180010.0U CN218334253U (en) | 2022-08-18 | 2022-08-18 | Battery end cover assembly, battery pack and electric equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222180010.0U CN218334253U (en) | 2022-08-18 | 2022-08-18 | Battery end cover assembly, battery pack and electric equipment |
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| CN218334253U true CN218334253U (en) | 2023-01-17 |
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| CN202222180010.0U Active CN218334253U (en) | 2022-08-18 | 2022-08-18 | Battery end cover assembly, battery pack and electric equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116247392A (en) * | 2023-03-27 | 2023-06-09 | 厦门海辰储能科技股份有限公司 | End cover assembly and battery cell |
| CN116247392B (en) * | 2023-03-27 | 2024-07-02 | 厦门海辰储能科技股份有限公司 | End cover assembly and battery cell |
-
2022
- 2022-08-18 CN CN202222180010.0U patent/CN218334253U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116247392A (en) * | 2023-03-27 | 2023-06-09 | 厦门海辰储能科技股份有限公司 | End cover assembly and battery cell |
| CN116247392B (en) * | 2023-03-27 | 2024-07-02 | 厦门海辰储能科技股份有限公司 | End cover assembly and battery cell |
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