CN112599899A - Top cover structure and battery - Google Patents
Top cover structure and battery Download PDFInfo
- Publication number
- CN112599899A CN112599899A CN202011482384.7A CN202011482384A CN112599899A CN 112599899 A CN112599899 A CN 112599899A CN 202011482384 A CN202011482384 A CN 202011482384A CN 112599899 A CN112599899 A CN 112599899A
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- Prior art keywords
- hole
- nail
- top cover
- sealing
- liquid
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- 239000007788 liquid Substances 0.000 claims abstract description 93
- 238000007789 sealing Methods 0.000 claims abstract description 83
- 238000002347 injection Methods 0.000 claims description 44
- 239000007924 injection Substances 0.000 claims description 44
- 238000010276 construction Methods 0.000 claims 2
- 230000010485 coping Effects 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 239000002184 metal Substances 0.000 description 8
- 239000004033 plastic Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 229920002943 EPDM rubber Polymers 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- -1 e.g. Polymers 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 229920001973 fluoroelastomer Polymers 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000004816 latex Substances 0.000 description 1
- 229920000126 latex Polymers 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
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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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- Filling, Topping-Up Batteries (AREA)
Abstract
The invention discloses a top cover structure and a battery, and relates to the technical field of battery sealing. This top cap structure includes top cap piece and sealed nail, has seted up on the top cap piece and has annotated the liquid hole, and sealed nail has elasticity, and with annotate the cooperation of liquid hole to annotate the liquid hole when filling in. The top cover structure and the battery have the characteristics of simple structure, convenience in processing and production and higher sealing reliability.
Description
Technical Field
The invention relates to the technical field of battery sealing, in particular to a top cover structure and a battery.
Background
The battery liquid injection hole needs to be sealed by a sealing plug, the existing partial battery top cover structure adopts a mode of double sealing of the liquid injection hole by welding and a plastic nail, the production process is complicated, and the sealing function is redundant; part battery top cap structure also adopts the steel ball sealed, and it is through pressing into the steel ball and annotating the liquid hole, and the rigidity requirement to the top cap piece structure is higher, and leads to the metal fillings to fall into in the electric core easily, has the short circuit risk to sealed reliability is not good enough.
In view of the above, it is important to develop a top cap structure and a battery that can solve the above technical problems.
Disclosure of Invention
The invention aims to provide a top cover structure and a battery, which have the characteristics of simple structure, convenience in processing and production and higher sealing reliability.
The invention provides a technical scheme that:
in a first aspect, embodiments of the present invention provide a top cover structure, which includes a top cover sheet and a sealing nail;
the top cover piece is provided with a liquid injection hole, and the sealing nail has elasticity and is matched with the liquid injection hole so as to seal the liquid injection hole when being plugged in the liquid injection hole.
With reference to the first aspect, in a first implementation manner of the first aspect, the sealing nail is in interference fit with the liquid injection hole.
With reference to the first aspect and the foregoing implementation manner, in a second implementation manner of the first aspect, a first buckling portion is convexly disposed at a position, close to the bottom, on a side surface of the sealing nail, and the first buckling portion abuts against an opening edge at the bottom end of the liquid injection hole.
With reference to the first aspect and the foregoing implementation manner, in a third implementation manner of the first aspect, a second fastening portion is convexly disposed on a side surface of the sealing nail, the side surface being close to the top portion, and the second fastening portion abuts against an opening edge at the top end of the liquid injection hole.
With reference to the first aspect and the foregoing implementation manner, in a fourth implementation manner of the first aspect, a partial pressure groove is formed in an end surface of the bottom end of the sealing nail.
With reference to the first aspect and the foregoing implementation manner, in a fifth implementation manner of the first aspect, the height of the bottom wall of the partial pressure groove is higher than the height of the bottom end of the liquid injection hole.
With reference to the first aspect and the foregoing implementation manner, in a sixth implementation manner of the first aspect, the side wall of the partial pressure groove forms an included angle with the first direction, and the space in the partial pressure groove is in a table shape, wherein the first direction is a direction from the opening at the top end of the liquid injection hole to the opening at the bottom end of the liquid injection hole.
With reference to the first aspect and the foregoing implementation manner, in a seventh implementation manner of the first aspect, the side wall of the liquid injection hole is disposed at an included angle with respect to the first direction, and the bottom opening diameter of the liquid injection hole is made larger than the opening diameter of the top end of the liquid injection hole, where the first direction is a direction from the opening of the top end of the liquid injection hole to the opening of the bottom end of the liquid injection hole.
With reference to the first aspect and the foregoing implementation manner, in an eighth implementation manner of the first aspect, an included angle between the side wall of the liquid injection hole and the first direction is 0.25 to 30 °.
In a second aspect, the embodiment of the present invention further provides a battery, which includes the top cover structure. The top cover structure comprises a top cover plate and a sealing nail; the top cover piece is provided with a liquid injection hole, and the sealing nail has elasticity and is matched with the liquid injection hole so as to seal the liquid injection hole when being plugged in the liquid injection hole.
Compared with the prior art, the top cover structure provided by the embodiment of the invention has the beneficial effects that:
this top cap structure includes top cap piece and sealed nail, and wherein, has seted up on the top cap piece and has annotated the liquid hole, and sealed nail has elasticity, and this sealed nail and annotate the cooperation of liquid hole, and it is used for filling in annotates the liquid hole and comes sealed annotating the liquid hole. Annotate the liquid hole sealed through the sealed nail of complex with it, and this sealed nail has elasticity, so, when the assembly, the accessible will seal the nail and impress and annotate the liquid hole and accomplish the assembly, its production and processing technology is simple, and because sealed nail has elasticity, when filling in sealed nail to annotating the liquid hole, even use great pressure to fill in sealed nail and annotate the liquid hole, also be difficult for producing the metal fillings because of sealed nail with annotating the friction of liquid downthehole wall, make the metal fillings difficult for falling into the battery, and, it is higher to adopt the sealed reliability who has elastic sealed nail.
The beneficial effects of the battery provided by the embodiment of the invention relative to the prior art are the same as the beneficial effects of the top cover structure relative to the prior art, and are not described again.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments will be briefly described below. It is appreciated that the following drawings depict only certain embodiments of the invention and are therefore not to be considered limiting of its scope. For a person skilled in the art, it is possible to derive other relevant figures from these figures without inventive effort.
Fig. 1 is a schematic cross-sectional structure diagram of a top cover structure according to an embodiment of the present invention.
Fig. 2 is an enlarged schematic view of the structure at II in fig. 1.
Fig. 3 is a schematic cross-sectional structure diagram of a liquid filling hole portion of a cover lid of a top lid structure according to an embodiment of the present invention.
Fig. 4 is a schematic structural diagram of a cross section of a sealing nail of a cap structure according to an embodiment of the present invention.
Icon: 10-a top cover structure; 11-a top cover sheet; 111-liquid injection hole; 12-sealing nails; 121-a first clasp; 1211-guide ramp; 122-a second clasp; 123-partial pressure groove; 13-discharging plastic; 14-pole column; a-a first direction; b-a second direction.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. The terms "upper", "lower", "inner", "outer", "left", "right", and the like, refer to an orientation or positional relationship as shown in the drawings, or as would be conventionally found in use of the inventive product, or as would be conventionally understood by one skilled in the art, and are used merely to facilitate the description and simplify the description, but do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting the present invention. The terms "first," "second," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance. The terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
It is also to be understood that, unless expressly stated or limited otherwise, the terms "disposed," "connected," and the like are intended to be open-ended, and mean "connected," i.e., fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; the connection may be direct or indirect via an intermediate medium, and may be a communication between the two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The following detailed description of embodiments of the invention refers to the accompanying drawings.
Example (b):
referring to fig. 1, fig. 1 is a schematic cross-sectional view of a top cover structure 10 according to an embodiment of the invention.
The embodiment of the invention provides a top cover structure 10, and the top cover structure 10 has the characteristics of simple structure, convenience in processing and production and higher sealing reliability. The top cover structure 10 can be applied to a battery, when the top cover structure 10 is applied to the battery, the top cover structure 10 can be mounted on the top of the battery core to be electrically connected with a pole piece of the battery core and can be connected with a shell of the battery core to form a closed space, and the battery has the characteristics of simple structure, convenience in processing and production and high sealing reliability due to the adoption of the top cover structure 10 provided by the embodiment of the invention.
The structural composition, the operation principle and the advantageous effects of the top cover structure 10 according to the embodiment of the present invention will be described in detail below.
With continuing reference to fig. 1, and with further reference to fig. 2 and 3, fig. 2 is an enlarged schematic view of the structure at II in fig. 1. FIG. 3 is a schematic cross-sectional view of the pouring hole 111 of the lid plate 11 of the lid assembly 10 according to the embodiment of the present invention.
This top cap structure 10 includes top cover piece 11 and sealed nail 12, wherein, has seted up notes liquid hole 111 on the top cover piece 11, and sealed nail 12 has elasticity, and this sealed nail 12 cooperates with notes liquid hole 111, and it is used for plugging in notes liquid hole 111 and comes sealed notes liquid hole 111. In other words, annotate liquid hole 111 and seal through the sealed nail 12 of complex with it, and this sealed nail 12 has elasticity, so, when the assembly, the accessible is pressed sealed nail 12 into and is annotated liquid hole 111 and accomplish the assembly, its production and processing technology is simple, and the cost is lower, and because sealed nail 12 has elasticity, when stuffing sealed nail 12 into annotate liquid hole 111, even use great pressure to stuff sealed nail 12 into annotate liquid hole 111, also be difficult for producing the metal fillings because of sealed nail 12 with annotating the friction of liquid hole 111 inner wall, make the metal fillings difficult for falling into the battery, or said, it is through soft or hard contact, reduces the probability that the metal fillings produced, improves the security. Moreover, the sealing reliability of the elastic sealing nail 12 is high, and a user can pull out the sealing nail 12 to realize the possibility of liquid supplement of the battery core.
It should be noted that in the present embodiment, the sealing nail 12 is made of fluororubber or epdm rubber, but in other embodiments, the sealing nail 12 may also be made of other elastic materials or flexible materials, such as latex, e.g., silicone rubber. In addition, top cap structure 10 still can include plastic 13 and utmost point post 14 down, and plastic 13 top under the top cap piece 11, top cap structure 10 is connected with electric core through plastic 13 down, and utmost point post 14 wears to locate top cap piece 11 and plastic 13 down, and is used for the pole piece of electric core to connect.
Further, the sealing nail 12 and the injection hole 111 may be in interference fit. In other words, the diameter of the liquid filling hole 111 is smaller than the diameter of the sealing nail 12, so that when the sealing nail 12 is inserted into the liquid filling hole 111, the side surface of the sealing nail 12 is pressed against the inner wall of the liquid filling hole 111 with a large pressure, thereby further improving the sealing reliability of the sealing nail 12.
Referring to fig. 1, fig. 2 and fig. 3, and fig. 4, fig. 4 is a schematic structural diagram of a cross section of the seal pin 12 of the cap structure 10 according to the embodiment of the present invention. In FIGS. 2, 3 and 4, the direction indicated by the arrow A is the first direction A, the direction indicated by the arrow B is the second direction B, the first direction A is the direction from the opening at the top end of the pour hole 111 to the opening at the bottom end of the pour hole 111, and the second direction is the direction from the opening at the bottom end of the pour hole 111 to the opening at the top end of the pour hole 111.
The side of the sealing nail 12 near the bottom can be protruded with a first buckle portion 121, the first buckle portion 121 is abutted against the opening edge of the bottom end of the liquid injection hole 111, in other words, the bottom of the sealing nail 12 is protruded with the first buckle portion 121 toward the periphery of the sealing nail 12, the first buckle portion 121 and the side of the sealing nail 12 are buckled on the opening edge of the bottom end of the liquid injection hole 111 together, so as to limit the sealing nail 12 to be separated from the liquid injection hole 111 along the second direction B, so that the sealing nail 12 can be stably sealed even when the air pressure inside the battery changes, and the sealing reliability of the sealing nail 12 is further improved.
When the sealing nail 12 is installed, because the sealing nail 12 has elasticity, the sealing nail 12 can be forcibly pressed into the liquid injection hole 111, and the first buckling part 121 is abutted against the edge of the bottom opening of the liquid injection hole 111.
In other embodiments, the first buckle 121 can be fixed on the lower plastic 13 or on the top cover plate 11 at a position lower than the liquid inlet 111 to define the position of the sealing pin 12.
Further, the side of the first buckle portion 121 away from the top end of the sealing nail 12 may be formed with a guiding inclined surface 1211, and the guiding inclined surface 1211 extends to the end of the first buckle portion 121 and is disposed opposite to the side of the sealing nail 12, as shown in fig. 2 and 4. Alternatively, the inclined guide surface 1211 is angled with respect to the first direction A such that when the seal pin 12 is inserted into the pour hole 111, the inclined guide surface 1211 is adapted to abut against the edge of the top opening of the pour hole 111 to guide the seal pin 12 to be displaced toward the axis of the pour hole 111, so as to insert the seal pin 12 into the pour hole 111.
In addition, a second buckling portion 122 may be protruded from a position on the side surface of the sealing nail 12 near the top, and the second buckling portion 122 abuts against the opening edge at the top end of the liquid injection hole 111, in other words, the top of the sealing nail 12 is protruded toward the outer periphery of the sealing nail 12 to form a second buckling portion 122, and the second buckling portion 122 and the side surface of the sealing nail 12 are buckled on the opening edge at the top end of the liquid injection hole 111 together, so as to limit the sealing nail 12 from being pressed into the battery along the first direction a, so as to keep the position of the sealing nail 12 stable together with the first buckling portion 121, or, the first buckling portion 121 and the second buckling portion 122 located on the side surface of the sealing nail 12 form a groove together, and the inner wall of the liquid injection hole 111 is located in the groove, so that the sealing nail 12 can be stably sealed even when the air pressure inside the battery changes, and the sealing reliability of the sealing nail 12. In other embodiments, the second buckle 122 can also be clamped on the top cover plate 11 at a position higher than the liquid injection hole 111, so as to define the position of the sealing nail 12.
With reference to fig. 2 and fig. 4, the end surface of the bottom end of the sealing nail 12 is provided with a pressure dividing groove 123, in other words, the sealing bottom end is recessed to form the pressure dividing groove 123, the pressure dividing groove 123 is recessed along the second direction B, and under the action of the internal air pressure of the battery, the side wall of the pressure dividing groove 123 tends to expand outward toward the periphery of the sealing nail 12, so as to increase the pressure of the side surface of the sealing nail 12 pressing against the inner wall of the liquid injection hole 111, and further improve the sealing reliability of the sealing nail 12. The first buckling part 121 and the side surface of the sealing nail 12 are also buckled on the opening edge of the bottom end of the liquid pouring hole 111 more firmly.
Also, the bottom wall of the partial pressure groove 123 may have a height higher than that of the bottom end of the pour hole 111. Or, the distance between the bottom wall of the partial pressure groove 123 and the side surface of the first buckle part 121 close to the top of the sealing nail 12 is greater than zero, that is, the distance corresponding to H in fig. 4 is greater than zero, so that the side surface of the sealing nail 12 is pressed against the inner wall of the liquid injection hole 111 in a larger area under the pressure inside the battery, and the sealing reliability of the sealing nail 12 is further improved.
Further, the side wall of the partial pressure groove 123 may be disposed at an included angle with the first direction a, and the space in the partial pressure groove 123 is in a table shape, so that the thickness of the sealing nail 12 corresponding to the position of the side wall of the partial pressure groove 123 close to the bottom wall is relatively thick, so that after the sealing nail 12 is pressed into the liquid injection hole 111, the portion corresponding to the side wall of the partial pressure groove 123 is not easily subjected to plastic deformation, the structure is relatively stable, and the thickness of the sealing nail 12 corresponding to the position of the side wall of the partial pressure groove 123 close to the opening is relatively thin, so that the side surfaces of the first fastening portion 121 and the sealing nail 12 are fastened on the opening edge at the bottom end of the liquid injection hole 111 more stably.
In this embodiment, the space in the partial pressure groove 123 is formed in a circular truncated cone shape, but in other embodiments, the space in the partial pressure groove 123 may be formed in a substantially truncated cone shape such as a truncated pyramid. In addition, the included angle between the generatrix of the partial pressure groove 123 and the first direction a is 4 °, and in other embodiments, the included angle between the generatrix of the partial pressure groove 123 and the first direction a may also be 0.25 to 30 °.
Referring to fig. 2 and fig. 3, the sidewall of the liquid injection hole 111 may be disposed at an angle to the first direction a, and the diameter of the opening at the bottom end of the liquid inlet 111 is made larger than the diameter of the opening at the top end of the liquid inlet 111, in other words, the space in the liquid inlet 111 is provided in a substantially truncated-cone shape, under the pressure inside the battery, the sealing nail 12 has a tendency to move in the second direction B, the side surface of the seal nail 12 is pressed against the inner wall of the pour hole 111 with a greater pressure, to further improve the sealing reliability of the seal nail 12, and, because the bottom end of the sealing nail 12 is provided with the pressing groove which is in a truncated cone shape, and the bottom of the sealing nail 12 is also provided with the first buckling part 121, the sealing nail 12 has the tendency of expanding outwards in the radial direction, thus, the obliquely arranged liquid injection hole 111 and the sealing nail 12 form a more stable self-locking structure, so that the sealing reliability of the sealing nail 12 is further improved.
It should be noted that, in this embodiment, the space in the liquid inlet 111 is formed in a truncated cone shape, but in another embodiment, the space in the liquid inlet 111 may be formed in a truncated cone shape such as a truncated pyramid, and the shape of the space in the liquid inlet 111 is similar to the space in the partial pressure groove 123, so that the portion corresponding to the side wall of the partial pressure groove 123 is more uniformly pressed against the inner wall of the liquid inlet 111.
In the present embodiment, the included angle between the sidewall of the liquid inlet 111 and the first direction a is 4 °, and in other embodiments, the included angle between the sidewall of the liquid inlet 111 and the first direction a may be 0.25 to 30 °, that is, the angle θ in the drawing is 0.5 to 60 °.
The working principle of the top cover structure 10 provided by the embodiment of the invention is as follows:
this top cap structure 10 includes top cover piece 11 and sealed nail 12, wherein, has seted up notes liquid hole 111 on the top cover piece 11, and sealed nail 12 has elasticity, and this sealed nail 12 cooperates with notes liquid hole 111, and it is used for plugging in notes liquid hole 111 and comes sealed notes liquid hole 111. Annotate liquid hole 111 and seal through the sealed nail 12 of complex with it, and this sealed nail 12 has elasticity, so, when the assembly, the accessible is impressed sealed nail 12 and is annotated liquid hole 111 and accomplish the assembly, its production and processing technology is simple, and because sealed nail 12 has elasticity, when filling in sealed nail 12 to annotate liquid hole 111, even use great pressure to fill in sealed nail 12 and annotate liquid hole 111, also be difficult for producing the metal fillings because of sealed nail 12 with annotating the friction of liquid hole 111 inner wall, make the metal fillings difficult to fall into the battery, and, the sealed reliability of adoption with elastic sealed nail 12 is higher.
In summary, the following steps:
the embodiment of the invention provides a top cover structure 10 which has the characteristics of simple structure, convenience in processing and production and higher sealing reliability.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and it is obvious to those skilled in the art that the features in the above embodiments may be combined with each other and the present invention may be variously modified and changed without conflict. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention. The present embodiments are to be considered as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (10)
1. A top cover structure, characterized by comprising a top cover sheet (11) and a sealing nail (12);
liquid injection hole (111) has been seted up on top cover piece (11), sealed nail (12) have elasticity, and with annotate liquid hole (111) cooperation, with fill in when annotating liquid hole (111) sealed annotate liquid hole (111).
2. The roof construction according to claim 1, characterized in that the sealing spike (12) is an interference fit with the pour hole (111).
3. The top cover structure of claim 1, wherein a first buckle part (121) is protruded from the side surface of the seal nail (12) near the bottom, and the first buckle part (121) abuts against the opening edge at the bottom end of the liquid injection hole (111).
4. A cap structure according to claim 3, wherein a second buckle part (122) is protruded from the side surface of the sealing nail (12) near the top, and the second buckle part (122) is abutted against the opening edge at the top end of the liquid injection hole (111).
5. The coping structure according to claim 1, wherein the end face of the bottom end of the sealing nail (12) is provided with a partial pressure groove (123).
6. The top cover structure according to claim 5, wherein the bottom wall of the partial pressure groove (123) has a height higher than the height of the bottom end of the pour hole (111).
7. The roof structure according to claim 5, characterized in that the side wall of the partial pressure groove (123) is arranged at an angle with respect to a first direction (A) and the space in the partial pressure groove (123) is in a platform shape, wherein the first direction (A) is a direction from the opening at the top end of the liquid injection hole (111) to the opening at the bottom end of the liquid injection hole (111).
8. The roof structure according to any of claims 1 to 7, characterized in that the side wall of the pour hole (111) is arranged at an angle to the first direction (A) such that the bottom opening diameter of the pour hole (111) is larger than the top opening diameter of the pour hole (111), wherein the first direction (A) is the direction from the top opening of the pour hole (111) to the bottom opening of the pour hole (111).
9. A roof construction according to claim 8, characterized in that the side walls of the pouring aperture (111) are angled in the first direction (A) in the range of 0.25-30 °.
10. A battery, characterized in that it comprises a top cover structure (10) according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011482384.7A CN112599899A (en) | 2020-12-15 | 2020-12-15 | Top cover structure and battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011482384.7A CN112599899A (en) | 2020-12-15 | 2020-12-15 | Top cover structure and battery |
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| Publication Number | Publication Date |
|---|---|
| CN112599899A true CN112599899A (en) | 2021-04-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011482384.7A Pending CN112599899A (en) | 2020-12-15 | 2020-12-15 | Top cover structure and battery |
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| CN (1) | CN112599899A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023103395A1 (en) * | 2021-12-07 | 2023-06-15 | 湖北亿纬动力有限公司 | Battery top cover plate and battery |
| WO2024022155A1 (en) * | 2022-07-29 | 2024-02-01 | 厦门海辰储能科技股份有限公司 | Sealing nail, end cover assembly, energy storage apparatus and electric device |
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| WO2023103395A1 (en) * | 2021-12-07 | 2023-06-15 | 湖北亿纬动力有限公司 | Battery top cover plate and battery |
| WO2024022155A1 (en) * | 2022-07-29 | 2024-02-01 | 厦门海辰储能科技股份有限公司 | Sealing nail, end cover assembly, energy storage apparatus and electric device |
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