CN115084737B - Lithium sub-battery pack cover - Google Patents
Lithium sub-battery pack cover Download PDFInfo
- Publication number
- CN115084737B CN115084737B CN202210906920.4A CN202210906920A CN115084737B CN 115084737 B CN115084737 B CN 115084737B CN 202210906920 A CN202210906920 A CN 202210906920A CN 115084737 B CN115084737 B CN 115084737B
- Authority
- CN
- China
- Prior art keywords
- cover part
- cover
- edge
- lithium
- contour
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims description 4
- 229910052744 lithium Inorganic materials 0.000 title claims description 4
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 claims abstract description 57
- 229910001416 lithium ion Inorganic materials 0.000 claims abstract description 57
- 238000007789 sealing Methods 0.000 claims abstract description 24
- 239000011521 glass Substances 0.000 claims abstract description 6
- 239000012212 insulator Substances 0.000 claims abstract description 6
- 230000002093 peripheral effect Effects 0.000 claims description 9
- 230000000903 blocking effect Effects 0.000 claims description 3
- 239000013013 elastic material Substances 0.000 claims description 3
- 125000006850 spacer group Chemical group 0.000 claims 2
- 239000003792 electrolyte Substances 0.000 abstract description 6
- 230000013011 mating Effects 0.000 description 5
- 230000002787 reinforcement Effects 0.000 description 3
- 230000009977 dual effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 239000013536 elastomeric material Substances 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- 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
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/147—Lids or covers
-
- 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
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/14—Primary casings; Jackets or wrappings for protecting against damage caused by external factors
-
- 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
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/147—Lids or covers
- H01M50/166—Lids or covers characterised by the methods of assembling casings with lids
-
- 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
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/183—Sealing members
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M6/00—Primary cells; Manufacture thereof
- H01M6/14—Cells with non-aqueous electrolyte
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The present invention relates to a lithium-ion battery pack cover. The sealing device comprises a first cover part and a second cover part, wherein the first cover part comprises a first outer edge cover part and a first inner cover sub part, the first outer edge cover part is hollow and provided with a channel which is axially arranged, and the first inner cover sub part is blocked in the lower area of the channel of the first outer edge cover part; the second cover part comprises a second capping cover part and a second outer cover part, the second capping cover part is plugged in the upper area of the channel of the first outer edge cover part, and the second outer cover part is arranged outside the first outer edge cover part of the first cover part and is connected with the first outer edge cover part and the second capping cover part of the first cover part; wherein, the center of first inner cover sub-portion and second cover sub-portion all has the perforation that is used for setting up glass insulator and center utmost point post. The invention improves the resistance of the lithium-ion battery pack cover to the impact force formed by the internal electrolyte.
Description
Technical Field
The invention relates to the technical field of lithium-ion battery covers, in particular to a lithium-ion battery pack cover.
Background
The lithium-ion battery cover is an important component of the lithium-ion battery and forms a top part of the lithium-ion battery together with the glass insulator and the central pole, wherein the lithium-ion battery cover is arranged on the outer shell of the lithium-ion battery.
However, when the lithium-ion battery falls, an impact force is formed on the lithium-ion battery pack cover by electrolyte in the lithium-ion battery, so that the lithium-ion battery pack cover is separated from the outer shell of the lithium-ion battery.
Disclosure of Invention
In order to solve the technical problems, the invention provides a lithium-ion battery pack cover, which improves the resistance of the lithium-ion battery pack cover to the impact force formed by an internal electrolyte by adopting a double impact-resistant structure jointly constructed by a first cover part and a second cover part on the part, close to the top end, of the upper part of an outer shell of a lithium-ion battery.
The technical solution for realizing the purpose of the invention is as follows: a lithium-ion battery pack cover comprising:
A first cover part including a first outer rim cover part and a first inner cap part, the first outer rim cover part being hollow inside and having channels arranged in an axial direction, a part of the inside of the first outer rim cover part being used for cooperatively accommodating a part of a housing of the lithium-ion battery near an open end, the channels of the first outer rim cover part being used for communicating the housing inner space of the lithium-ion battery with the outer space of the lithium-ion battery, the first inner cap part blocking a tail region of the channels of the first outer rim cover part;
The second cover part comprises a second capping cover part and a second outer cover part, the second capping cover part is plugged in the head area of the channel of the first outer edge cover part, and the second outer cover part is arranged on the periphery of the first outer edge cover part of the first cover part and is connected with the first outer edge cover part and the second capping cover part of the first cover part; and
Wherein, the center of first inner cover sub-portion and second cover sub-portion all has the perforation that is used for setting up glass insulator and center utmost point post.
In some embodiments, the body of the first outer rim cover comprises an inlet and a sealing mouth, and a first contour portion and a second outer contour portion which are coaxial and are connected with each other, the inlet and the sealing mouth are arranged in the axial direction of the body of the first outer rim cover, the first contour portion is positioned on the inner side of the second contour portion and is provided with a contour mouth between the two, the contour mouth is provided with an open section and a closed section, the second outer contour portion is positioned at the closed section, the contour mouth of the first outer rim cover is used for cooperatively accommodating a part close to the open end in the shell of the lithium sub-battery, the first contour portion is provided with a channel which axially extends from the inlet of the body of the first outer rim cover to the sealing mouth, the first contour portion is provided with an inlet end section at the inlet, the inlet end section is provided with a radial sub-end section which radially extends from the inner side to the outer side of the first contour portion, the first inner side cover sub-sealing part is sealed at the sealing mouth of the body of the first outer rim cover;
The second capping cover part is arranged on the inlet end section of the first contour part and transversely seals the inlet of the main body of the first outer edge cover part, the second outer side cover part is arranged between the outer side cover part and the inlet end section of the first contour part and surrounds the first contour part, the outer edge end of the second outer side cover part is connected with the outer side cover part and the opposite end is connected with the second capping cover part, a spacing groove is arranged between the first end and the second end of the second outer side cover part, an edge part is arranged in the spacing groove, the edge part comprises a fixing piece and an edge wall body which is arranged in parallel with the first contour part, the edge wall body comprises a first side wall and a second side wall, the first side wall is connected with the outer edge end of the first end of the second outer side cover part through a first rotating piece, the second side wall is connected with the outer edge end of the second outer side cover part through a second rotating piece, a rotating shaft is arranged between the first rotating piece and the second rotating piece, the edge part rotates around the rotating shaft, the fixing piece extends from the edge wall body towards the first contour part and comprises a connecting end and an edge end, wherein the connecting end of the fixing piece rotates together with the edge wall when the connecting end of the fixing piece and the edge part rotates around the edge;
The edge wall body rotates between a fixed position and an initial position through the rotating shaft, wherein when the edge wall body is at the fixed position, the edge end of the fixing piece is positioned below the radial sub-end section, and the second cover part is prevented from being separated from the first cover part; in the initial position, the edge end of the securing element is located at a radial distance from the radial sub-end section, thereby allowing the second cover part to be separated from the first cover part.
In some embodiments, the first peripheral cap portion further comprises a tab portion facing the inlet and located within the channel, wherein the peripheral edge of the first inner cap portion has an embedded portion of an elastomeric material having a mating surface, the embedded portion being embedded at the embedded location, the mating surface of the embedded portion abutting against an opposing surface of the tab portion.
In some embodiments, a security reinforcement post is included to connect the rim wall with the second capped cap portion; the safety enhancement post is broken by a force exceeding a predetermined force value, whereby the connection between the edge wall and the second capping cover is broken.
In some embodiments, the first profile portion is provided with an inner cover section extending around the channel at an inlet end section adjacent the inlet, and the second cover portion has a hole sealing plate portion thereon, the hole sealing plate portion being cooperatively connected with the inner cover section.
In some embodiments, the edge wall includes a through hole, and the attachment end of the securing member is attached to the bottom end of the through hole.
In some embodiments, the number of the spacing grooves is two, and each spacing groove is provided with the edge sub-part.
In some embodiments, the edge wall has an operating portion for rotating the edge wall from a fixed position to an initial position.
Compared with the prior art, the invention has the remarkable advantages that:
According to the lithium-ion battery pack cover, the first dual impact-resistant structure which is jointly constructed by the first cover part and the second cover part is adopted for the part, close to the top end, of the upper part of the outer shell of the lithium-ion battery, the first cover part is plugged in the lower area of the channel of the first outer edge cover part through the first inner cover part to construct the first channel impact-resistant structure, the second cover part is plugged in the upper area of the channel of the first outer edge cover part through the second top cover part to construct the second channel impact-resistant structure, and the first channel impact-resistant structure and the second channel impact-resistant structure in the dual impact-resistant structure are sequentially arranged in the electrolyte impact direction in an ascending-descending manner, so that the impact force resistance of the lithium-ion battery pack cover to internal electrolyte is improved, the problem that the lithium-ion battery pack cover is separated from the outer shell of the lithium-ion battery when the lithium-ion battery is dropped is solved, and the second outer cover part is arranged on the periphery of the first outer edge cover part of the first cover part to protect the first outer edge cover part.
Drawings
Fig. 1 is a perspective cross-sectional view of a lithium-ion battery cover in accordance with an embodiment of the invention.
Fig. 2 is a perspective view of a portion of a lithium-ion battery cover in accordance with an embodiment of the invention from a side view.
Fig. 3 is a perspective view of the remainder of the lithium-ion battery cover in accordance with an embodiment of the invention from a side view.
Fig. 4 is a perspective view of a portion of a lithium-ion battery pack cover in another side view in accordance with an embodiment of the invention.
Fig. 5 is a perspective view of the remainder of the lithium-ion battery pack cover in another side view in accordance with an embodiment of the invention.
Reference numerals: 10. a first cover part; 101. a first peripheral cap portion; 1011. an inlet; 1012. sealing the opening; 1013. a first profile section; 10131. a channel; 10132. an inlet end section; 101321, radial sub-end segments; 10133. an outer cover sealing section; 10134. an extension end section; 10135. an inner cover section; 10136. an outer surface; 1014. a second outer contour portion; 1015. a contour opening; 10151. an open section; 10152. a closed section; 1016. a projection; 102. a first inner cap sub-section; 1021. an embedding portion; 10211. a mating surface; 103. an embedding position; 104. an inner thread; 20. a second cover part; 201. a second capping cover portion; 202. a second outer cover sub-section; 2021. an outer edge end; 2022. opposite ends; 2023. a spacing groove; 2024. a first end; 2025. a second end; 203. an edge sub-section; 2031. an edge wall; 20311. a first sidewall; 20312. a second sidewall; 20313. a through hole; 203131, bottom end; 20314. an operation section; 203141, a plate portion; 2032. a first rotating member; 2033. a second rotating member; 2034. a fixing member; 20341. a connection end; 20342. an edge; 2036. a rotating shaft; 2035. a safety enhancement column; 204. a hole sealing plate part; 30. perforating; 40. fixing the position.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
The lithium-ion battery pack cover, the glass insulator and the central pole together form a top part of the lithium-ion battery, wherein the lithium-ion battery pack cover is arranged on an outer shell of the lithium-ion battery, and part of the outer surface, close to the top end, of the upper part of the outer shell of the lithium-ion battery is provided with external threads, as shown in fig. 1, and in one embodiment of the invention, the lithium-ion battery pack cover is provided with the following components: the first cover 10, the contour 1015 of the first cover 10 is for cooperatively accommodating a portion of the casing of the lithium-ion battery near the open end, for sealingly storing the electrolyte in the casing of the lithium-ion battery, and in one embodiment, a portion of the outer surface of the casing of the lithium-ion battery near the open end is disposed at the contour 1015 of the first cover 10 by the inner threads 101 of the first cover 10.
The first cover part 10 comprises a first outer edge cover part 101 and a first inner cover sub-part 102, wherein the first outer edge cover part 101 is hollow and provided with a channel 10131 which is axially arranged, a part of the inner part of the first outer edge cover part 101 is used for cooperatively accommodating a part, close to an open end, of a shell of the lithium-ion battery, the channel 10131 of the first outer edge cover part 101 is used for communicating the inner space of the shell of the lithium-ion battery with the outer space of the lithium-ion battery, and the first inner cover sub-part 102 is blocked at the tail part area of the channel 10131 of the first outer edge cover part 101;
wherein the main body of the first outer edge cover part 101 comprises an inlet 1011 and a plugging port 1012, and a first contour part 1013 and a second outer contour part 1014 which have the same axis and are connected with each other, the inlet 1011 and the plugging port 1012 are arranged in the axial direction of the main body of the first outer edge cover part 101, the inlet 1011 and the plugging port 1012 are respectively positioned at the head area and the tail area of the main body of the first outer edge cover part 6, and the first inner cover sub-part 102 is plugged at the plugging port 1012 of the main body of the first outer edge cover part 101; the first contour portion 1013 is located inside the second contour portion 1014.
The profile opening 1015 is between the first profile portion 1013 and the second profile portion 1014, the profile opening 1015 having an open section 10151 and a closed section 10152, the second outer profile portion 1014 being located at the closed section 10152. In one embodiment, a sealing ring (not shown) is provided at the closed section 10152 of the profile opening 1015, so as to enhance the sealing effect between the top end-near portion of the upper housing part of the lithium-ion battery and the first peripheral cap part 101 of the first cap part 10.
The first profile part 1013 has a channel 10131 therein extending from the inlet 1011 of the body of the first peripheral cap 101 to the closure 1012, the first profile part 1013 having an inlet end section 10132 at the inlet 1011, the inlet end section 10132 having a radial sub-end section 101321 thereon extending radially from the inside to the outside of the first profile part 1013, the first profile part 1013 having an outer cap seal 10133 disposed adjacent the inlet 1011 and around the outer surface 10136 of the outer first profile part 1013;
As shown in fig. 1, in an embodiment, the first outer edge cover part 101 further comprises a protrusion 1016 facing the inlet 1011 and located in the channel 10131, wherein the first inner cover part 102 has an embedded part 1021 made of an elastic material on its peripheral edge, the embedded part 1021 has a mating surface 10211, the embedded part 1021 is embedded at the embedded position 103, and the mating surface 10211 of the embedded part 1021 abuts against the opposite surface of the protrusion 1016, whereby the first inner cover part 102 seals off the sealing opening 1012 of the first contour part 1013, and the first inner cover part 102 also seals off the channel 10131, and the first inner cover part 102 is kept in the sealing opening 1012 position.
The first profile part 1013 includes an extended end section 10134 adjacent to the closure 1012, the extended end section 10134 being circumferentially arranged around the channel 10131 and the lower end being in abutting contact with an edge portion of the first inner cap part 102, thereby enhancing the sealing performance of the first inner cap part 7 with the closure 17.
The second cover part 20 includes a second capping cover part 201 and a second outer cover sub-part 202, the second capping cover part 201 blocking a head region of the passage 10131 of the first outer rim cover part 101, and the second outer cover sub-part 202 is disposed at the periphery of the first outer rim cover part 101 of the first cover part 10 and is connected to both the first outer rim cover part 101 and the second capping cover part 201 of the first cover part 101; and
Wherein the centers of the first and second cap portions 102, 201 each have perforations for the placement of glass insulators and center posts.
As shown in fig. 1, in one embodiment, the second capping cover 201 is disposed on the inlet end section 10132 of the first profile part 1013 and blocks the inlet 1011 of the body of the first peripheral cover 101.
The second outer cap sub-portion 202 is disposed between the outer cap seal 10133 and the inlet end section 10132 of the first profile portion 1013 and is disposed about the first profile portion 1013, with the outer edge end 2021 of the second outer cap sub-portion 202 being connected to the outer cap seal 10133 and the opposite end 2022 being connected to the second capped cap portion 201.
Wherein preferably the second cover part 20 has a second inner cover part concentric with the second outer cover part 202 and located inside the second outer cover part 202, the second inner cover part engaging with the embedded part 1021 to fix the embedded part 1021 in the embedded position 103.
As shown in fig. 2 and 3, a spacing groove 2023 is provided between the first end 2024 and the second end 2025 of the second outer cover sub-portion 202, and an edge sub-portion 203 is provided in the spacing groove 2023.
The edge sub-portion 203 includes an edge wall body 2031 arranged in parallel with the first contour portion 1013, the edge wall body 2031 includes a first side wall 20311 and a second side wall 20312, the first side wall 20311 is connected to an outer edge end 2021 of the first end 2024 of the second outer cover sub-portion 202 by a first rotating member 2032, the second side wall 20312 is connected to an outer edge end 2021 of the second end 2025 of the second outer cover sub-portion 202 by a second rotating member 2033, a rotation shaft 2035 is provided between the first rotating member 2032 and the second rotating member 2033, and the edge sub-portion 203 rotates around the rotation shaft 2035.
As shown in fig. 5, the securing member 2034 extends from the edge wall 2031 toward the first contour portion 1013 and includes a connection end 20341 and an edge end 20342, wherein the connection end 20341 of the securing member 2034 is connected to the edge wall 2031, and when the edge sub-portion 203 rotates about the rotation axis 2035, the securing member 2034 rotates with the edge wall 2031; the fixing member 2034 is made of an elastic material. Preferably, the edge 20342 of the retainer 2034 is configured to be movable toward and away from the edge wall 2031.
As shown in fig. 1, in one embodiment, the radial sub-end 101321 has an angled top surface 103211 that facilitates installation, i.e., allows the fixture 3034 to move gradually outwardly during installation of the second cover part 20 on the first cover part 10.
As shown in fig. 1, the edge wall 2031 is rotated by the rotation shaft 2035 between a fixed position 40, where in the fixed position 40, the edge end 20342 of the fixture 3034 is located below the radial sub-end section 101321, preventing the second cover part 20 from being separated from the first cover part 10, and an initial position, where in the initial position, the edge end 20342 of the fixture 2034 is located at a radial distance from the radial sub-end section 101321, allowing the second cover part 20 to be separated from the first cover part 10.
The security reinforcement column 2035 connects the edge wall 2031 to the second capped cap portion 201; fracture occurs when the security reinforcement column 2035 is subjected to a force exceeding a first force value, thereby breaking the connection between the edge wall 2031 and the second capped cap portion 201; when the operator sees that the safety enhancement post 2035 is broken, he knows that the lithium-ion battery cover may have been previously opened.
In one embodiment, the number of the spacing grooves 2023 is two, and each spacing groove 2023 is provided with an edge sub-portion 203.
As shown in fig. 1, in one embodiment, the first contour portion 1013 is provided with an inner cover section 10135 extending around the channel 10131 near the inlet end section 10132 of the inlet 1011, and the second cover portion 20 has a hole sealing plate portion 204, the hole sealing plate portion 204 being mated with the inner cover section 10135, the hole sealing plate portion 204 being in surface contact with the sealing inner cover section 10135 for sealing the first contour portion 1013.
As shown in fig. 4, in one embodiment, the edge wall 2031 includes a through hole 20313 and the attachment end 20341 of the retainer 2034 is attached to the bottom end 203131 of the through hole 20313.
As shown in fig. 1, in an embodiment, the edge wall 2031 has an operation portion 20314, the operation portion 20314 is adapted for manual operation, and the operation portion 20314 is used to rotate the edge wall 2031 from the fixed position 40 to the initial position. Wherein the operating portion 20314 includes a plate portion 203141 extending radially outward from one end of the edge wall 2031.
The technical means disclosed by the scheme of the invention is not limited to the technical means disclosed by the technical means, and also comprises the technical scheme consisting of the technical characteristics and the equivalent substitution. The present invention is not limited to the prior art.
Claims (8)
1. A lithium-ion battery pack cover, comprising:
A first cover part including a first outer rim cover part and a first inner cap part, the first outer rim cover part being hollow inside and having channels arranged in an axial direction, a part of the inside of the first outer rim cover part being used for cooperatively accommodating a part of a housing of the lithium-ion battery near an open end, the channels of the first outer rim cover part being used for communicating the housing inner space of the lithium-ion battery with the outer space of the lithium-ion battery, the first inner cap part blocking a tail region of the channels of the first outer rim cover part;
The second cover part comprises a second capping cover part and a second outer cover part, the second capping cover part is plugged in the head area of the channel of the first outer edge cover part, and the second outer cover part is arranged on the periphery of the first outer edge cover part of the first cover part and is connected with the first outer edge cover part and the second capping cover part of the first cover part; and
Wherein the centers of the first inner cap portion and the second cap portion each have a perforated first outer edge cap portion for disposing the glass insulator and the center post, the body of the first outer edge cap portion including an inlet and a plugging port, and a first contour portion and a second outer contour portion having the same axis and being connected to each other, the inlet and the plugging port each being arranged in an axial direction of the body of the first outer edge cap portion, the first contour portion being located inside the second contour portion with a contour port therebetween, the contour port having an open section and a closed section, the second outer contour portion being located at the closed section, the contour port of the first outer edge cap portion for cooperatively accommodating a portion of the upper portion of the housing of the lithium subcell, the first contour portion having the channel extending axially from the inlet of the body of the first outer edge cap portion toward the plugging port, the first contour portion having an inlet end section at the inlet, a radial sub-end section extending radially from the inside to the outside of the first contour portion, the first contour portion having an outer peripheral seal section located near the inlet and surrounding the outer surface of the first contour portion, the first inner edge cap portion at the plugging port of the first outer edge cap portion.
2. The lithium-ion battery pack cover according to claim 1, wherein a second capping cover part is provided on the inlet end section of the first contour part and blocks the inlet of the main body of the first outer edge cover part laterally, a second outer side cover part is provided between the outer side cover part and the inlet end section of the first contour part and is arranged around the first contour part, the outer edge end of the second outer side cover part is connected to the outer side cover part while the opposite end is connected to the second capping cover part, a spacer groove is provided between the first end and the second end of the second outer side cover part, an edge sub part is provided in the spacer groove, the edge sub part includes a fixing member and an edge wall body arranged in parallel with the first contour part, the edge wall body includes a first side wall and a second side wall, the first side wall is connected to the outer edge end of the first end of the second outer side cover part by a first rotating member, the second side wall is connected to the outer edge end of the second outer side cover part by a second rotating member, a rotating shaft is provided between the first rotating member and the second rotating member, the edge sub part rotates around the rotating shaft, and the fixing member extends from the edge wall body toward the first contour part and the connecting end by the rotating member, and the edge wall rotates together with the fixing member when the fixing member rotates around the edge;
The edge wall body rotates between a fixed position and an initial position through the rotating shaft, wherein when the edge wall body is at the fixed position, the edge end of the fixing piece is positioned below the radial sub-end section, and the second cover part is prevented from being separated from the first cover part; in the initial position, the edge end of the securing element is located at a radial distance from the radial sub-end section, thereby allowing the second cover part to be separated from the first cover part.
3. The lithium-ion battery pack cover of claim 2, wherein: the first outer edge cover part further comprises a protrusion part facing the inlet and positioned in the channel, wherein the peripheral edge of the first inner sealing cover part is provided with an embedded part made of elastic material, the embedded part is provided with a matching surface, the embedded part is embedded at the embedded position, and the matching surface of the embedded part is abutted against the opposite surface of the protrusion part.
4. The lithium-ion battery pack cover of claim 2, further comprising a safety enhancement post for connecting the edge wall to the second capping cover portion; the safety enhancement post is broken by a force exceeding a predetermined force value, whereby the connection between the edge wall and the second capping cover is broken.
5. The lithium-ion battery pack cover according to claim 2, wherein the first contour portion is provided with an inner cover section extending around the passage at an inlet end section near the inlet, and the second cover portion has a hole sealing plate portion thereon, the hole sealing plate portion being cooperatively connected with the inner cover section.
6. The lithium-ion battery pack cover of claim 2, wherein the edge wall includes a through hole, and the connecting end of the fixing member is connected to a bottom end of the through hole.
7. The lithium-ion battery pack cover of claim 2, wherein: the number of the interval grooves is two, and the edge sub-parts are arranged in each interval groove.
8. The lithium-ion battery pack cover of claim 2, wherein: the edge wall has an operating portion for rotating the edge wall from a fixed position to an initial position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210906920.4A CN115084737B (en) | 2022-07-29 | 2022-07-29 | Lithium sub-battery pack cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210906920.4A CN115084737B (en) | 2022-07-29 | 2022-07-29 | Lithium sub-battery pack cover |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115084737A CN115084737A (en) | 2022-09-20 |
| CN115084737B true CN115084737B (en) | 2024-07-12 |
Family
ID=83241930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210906920.4A Active CN115084737B (en) | 2022-07-29 | 2022-07-29 | Lithium sub-battery pack cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115084737B (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20130004460A (en) * | 2012-11-30 | 2013-01-10 | 삼성에스디아이 주식회사 | Lithium polymer secondary battery |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4302517A (en) * | 1980-06-26 | 1981-11-24 | Union Carbide Corporation | Unitary seal and cover support gasket for miniature button cells |
| JP2002164077A (en) * | 2000-11-22 | 2002-06-07 | Japan Storage Battery Co Ltd | Cylindrical secondary battery |
| KR20110066343A (en) * | 2009-12-11 | 2011-06-17 | 김은유 | Liquid container closure assembly using magnets |
| KR101323919B1 (en) * | 2011-05-31 | 2013-10-31 | 세방전지(주) | Battery cover with dually sealed structure |
| US9066420B2 (en) * | 2012-03-16 | 2015-06-23 | Hamilton Sundstrand Corporation | Explosion proof by containment enclosure for housing electrical equipment |
| NL2008558C2 (en) * | 2012-03-29 | 2013-10-01 | Ipn Ip Bv | Container closure assemblies. |
| WO2016010294A1 (en) * | 2014-07-14 | 2016-01-21 | (주)오렌지파워 | Hollow-type secondary battery |
| CN213459984U (en) * | 2020-08-07 | 2021-06-15 | 丰田自动车株式会社 | Structure of battery box |
| CN213150887U (en) * | 2020-08-26 | 2021-05-07 | 武汉昊诚能源科技有限公司 | Lithium sub-battery cover group structure and lithium sub-battery |
-
2022
- 2022-07-29 CN CN202210906920.4A patent/CN115084737B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20130004460A (en) * | 2012-11-30 | 2013-01-10 | 삼성에스디아이 주식회사 | Lithium polymer secondary battery |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115084737A (en) | 2022-09-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3916894A1 (en) | Lower box body, battery pack and vehicle | |
| CN107221624A (en) | Rechargeable battery | |
| US5876868A (en) | Battery sealing structure | |
| EP3570344B1 (en) | Secondary battery and top cover assembly thereof | |
| KR20030066243A (en) | Cap Assembly and Secondary Battery Therewith | |
| CN102598357B (en) | Sealing plug arrangement for a battery | |
| CN115084737B (en) | Lithium sub-battery pack cover | |
| WO2024045458A1 (en) | Top cover assembly, battery, and electric device | |
| CN215451572U (en) | Cover plate assembly for battery and battery with same | |
| EP2919292B1 (en) | Rechargeable battery | |
| KR20190099133A (en) | Closure system for electric motor and corresponding closing method | |
| US11183722B2 (en) | Secondary battery and top cover assembly thereof | |
| CN219350597U (en) | Electrode terminal and single battery | |
| CN218039495U (en) | Top cover assembly and power battery | |
| CN218788435U (en) | Top cover assembly and single battery | |
| CN219717164U (en) | Battery cell | |
| CN216793925U (en) | Battery explosion-proof structure | |
| KR200406077Y1 (en) | secondary battery case | |
| KR100700564B1 (en) | Mobile terminal having battery | |
| CN220753581U (en) | Battery cover plate and lithium ion secondary battery | |
| US20220077526A1 (en) | Cylindrical Secondary Battery Including Gasket Having Recess Formed Therein | |
| CN112366420B (en) | Battery shell structure and button cell | |
| KR102681722B1 (en) | CID filter for secondary battery and secondary battery | |
| JPS63245831A (en) | Closed container of electric appliance having electrically insulating molding sheath | |
| WO2012089146A1 (en) | Rubber valve for lithium ion battery and lithium ion battery comprising the same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |