CN218334023U - Lithium battery cover plate - Google Patents
Lithium battery cover plate Download PDFInfo
- Publication number
- CN218334023U CN218334023U CN202222305331.9U CN202222305331U CN218334023U CN 218334023 U CN218334023 U CN 218334023U CN 202222305331 U CN202222305331 U CN 202222305331U CN 218334023 U CN218334023 U CN 218334023U
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- lithium battery
- cover plate
- metal substrate
- battery cover
- hole
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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 utility model relates to a lithium battery cover plate, which comprises a cover plate, a metal base plate and a non-metal base plate, wherein the metal base plate and the non-metal base plate are stacked together; a pole comprising a positive pole and a negative pole; the enclosing structure comprises an insulated base station and a flange, and the base station and the flange which are mutually connected form the enclosing structure surrounding the pole; after the lithium battery cover plate is arranged on the lithium battery main body, a certain interval is formed between the metal substrate of the lithium battery cover plate and the pole group in the lithium battery main body, and the metal substrate and the pole group are separated by the nonmetal structure, so that short circuit caused by contact between the metal substrate and the pole group is prevented; the utmost point ear of connecting on positive post and the negative pole post is restricted and is being enclosed the fender structure in, can prevent that utmost point ear and lithium cell main part's casing contact from taking place the short circuit, and encloses the fender structure and be detachable split type joint structure, and it is all comparatively convenient to install and dismantle. Meanwhile, the enclosing structure can also play a certain limiting and protecting role on the pole group, so that the pole group is prevented from generating large play, and the stability of the lithium battery structure is ensured.
Description
Technical Field
The utility model belongs to the technical field of the lithium cell technique and specifically relates to indicate a lithium cell apron.
Background
The appearance of batteries provides convenience for our life, entertainment and work. With the development of society and the advancement of human civilization, disposable batteries are gradually eliminated due to their disadvantages of low capacity, short service time, etc., and are replaced with secondary batteries having a large capacity and a longer service life, wherein the unique structure and performance of lithium batteries are widely used in various fields.
The in-process of installing on lithium cell main part of current lithium cell apron, the utmost point ear of connecting on lithium cell apron's the utmost point post touches lithium cell main part's casing easily and takes place the short circuit, and lithium cell apron's metal plate body also probably contacts and takes place the short circuit with the utmost point group in the lithium cell main part.
SUMMERY OF THE UTILITY MODEL
Therefore, the utility model aims to solve the technical problem that overcome among the prior art lithium cell apron at the in-process of installing lithium cell main part, the utmost point ear of connecting on lithium cell apron's the utmost point post touches lithium cell main part's casing easily and takes place the short circuit, and the metal plate body of lithium cell apron also probably contacts and takes place the problem of short circuit with the utmost point group in the lithium cell main part in the installation.
In order to solve the above technical problems, the utility model provides a lithium battery cover plate, which comprises,
the cover plate comprises a metal base plate and a non-metal base plate which are stacked together, wherein the metal base plate is provided with a liquid injection hole, and the non-metal base plate is provided with a notch corresponding to the position of the liquid injection hole;
the polar column comprises a positive pole column and a negative pole column, the positive pole column and the negative pole column are symmetrically arranged on two sides of the liquid injection hole, the positive pole column and the negative pole column penetrate through the metal substrate and the non-metal substrate and extend towards two sides, and insulating sealing elements are connected between the positive pole column and the metal substrate and between the negative pole column and the metal substrate;
the shielding structure comprises an insulating base station and a flange, the base station is provided with two symmetrical through holes which are communicated with the cavity, and the two ends of the base station are symmetrically provided with two rectangular through holes; the flange is provided with two, two the both ends of flange are all the symmetry and are provided with two first trip, the both ends of flange through first trip respectively with two the base station joint, interconnect the base station with the flange is constituteed and is enclosed the fender structure.
In an embodiment of the present invention, the metal substrate is symmetrically provided with a plurality of first through holes using the liquid injection hole as a center of symmetry, the non-metal substrate is symmetrically provided with a plurality of second through holes coaxially disposed with each of the first through holes, coaxially the first through holes and the second through holes constitute an installation hole site, each of the installation hole sites is provided with a rivet, and the rivet is provided with the insulating sealing member between the rivet and the installation hole site, the end cap end of the rivet is located on one side of the non-metal substrate and the joint thereof, the other end of the rivet is connected with the same conductive block on one side of the metal substrate, the rivet and the conductive block constitute a pole column, wherein the pole column located on one side of the liquid injection hole is a positive pole column, and the pole column located on the other side of the liquid injection hole is a negative pole column.
In an embodiment of the present invention, the rivet of the positive pole is made of aluminum, and the rivet of the negative pole is made of copper.
In an embodiment of the present invention, a positive conductive sheet is disposed between the conductive block of the positive post and the metal substrate, and a negative insulating sheet is disposed between the conductive block of the negative post and the metal substrate.
In an embodiment of the present invention, the positive conductive sheet and the negative insulating sheet are both of a groove structure on which a groove for embedding the conductive block is formed.
In an embodiment of the utility model, still be provided with the support on the non-metal substrate, the support includes two backup pads, two the backup pad is followed the length direction of non-metal substrate extends, and two the backup pad is in parallel symmetry sets up and is located in the width direction of non-metal substrate the both sides of breach, two interval connection has a plurality of support bars between the backup pad.
In an embodiment of the present invention, two joint holes are symmetrically disposed at both ends of the supporting plate, a second hook corresponding to the position of the joint hole is disposed on the rib, and the rib passes through the second hook and the joint hole joint.
In one embodiment of the present invention, the length of the supporting plate is 32mm, and the interval between the supporting bars is 7 ± 0.5mm.
In an embodiment of the present invention, the non-metal substrate, the base and the support are integrally formed.
In an embodiment of the present invention, the positive electrode pillar and the negative electrode pillar are close to one end of the non-metal substrate is connected with a positive electrode tab and a negative electrode tab respectively.
Compared with the prior art, the technical scheme of the utility model have following advantage:
the utility model discloses a lithium battery cover plate, with metal substrate and non-metal substrate stack-up together and constitute the apron structure to connect insulating enclosure structure in one side of non-metal substrate, make the lithium battery cover plate after installing in the lithium cell main part, have certain interval between the metal substrate of lithium cell cover plate and the utmost point group in the lithium cell main part, non-metal structure separates metal substrate and utmost point group, prevents to contact between metal substrate and the utmost point group and takes place the short circuit; and set up insulating enclose the fender structure and surround utmost point post in the centre, utmost point ear of connecting on positive post and the negative pole post is restricted and is enclosing the fender structure, can prevent utmost point ear and lithium cell main part's casing contact and take place the short circuit, and encloses the fender structure and be the split type joint structure of detachable, and it is all comparatively convenient to install and dismantle, can improve the efficiency of production. Simultaneously, enclose and keep off the structure and also can play certain spacing and guard action to stretching into wherein lithium battery main body's utmost point group, prevent that the utmost point group from taking place big drunkenness, guarantee whole lithium battery structure's stability. The utility model discloses a lithium battery cover plate's simple structure, installation and maintenance are convenient, are suitable for the practicality.
Drawings
In order to make the content of the invention more clearly understood, the invention will now be described in further detail with reference to specific embodiments thereof, taken in conjunction with the accompanying drawings, in which
Fig. 1 is a perspective view of a lithium battery cover plate according to a preferred embodiment of the present invention;
fig. 2 is a schematic view of the overall structure of the cover plate of the lithium battery according to the preferred embodiment of the present invention;
fig. 3 is an exploded view of a cover plate of a lithium battery according to a preferred embodiment of the present invention;
fig. 4 is a schematic diagram of an internal structure of a lithium battery cover plate according to a preferred embodiment of the present invention;
fig. 5 is a schematic structural diagram of the non-metal substrate of the lithium battery cover plate according to the preferred embodiment of the present invention;
fig. 6 is a sectional view of a lithium battery cover plate according to a preferred embodiment of the present invention.
The specification reference numbers indicate: 1. a cover plate; 11. a metal substrate; 111. a liquid injection hole; 112. a first through hole; 12. a non-metallic substrate; 121. a notch; 122. a second through hole; 2. a pole column; 21. a positive post; 22. a negative pole post; 23. an insulating seal; 24. riveting; 25. a conductive block; 26. a positive electrode conductive sheet; 27. a negative electrode insulating sheet; 28. a positive electrode tab; 29. a negative electrode tab; 3. a surrounding structure; 31. a base station; 311. a rectangular through hole; 32. blocking edges; 321. a first hook; 322. a second hook; 33. a support; 331. a support plate; 332. a supporting strip; 333. a clamping hole.
Detailed Description
The present invention is further described with reference to the following drawings and specific embodiments so that those skilled in the art can better understand the present invention and can implement the present invention, but the embodiments are not to be construed as limiting the present invention.
Referring to fig. 1 to 6, a lithium battery cover plate of the present invention includes,
the cover plate 1, the cover plate 1 includes the metal base plate 11 and non-metal base plate 12 that are laminated together, equip with and annotate the liquid hole 111 on the metal base plate 11, and equip with and annotate the gap 121 that the position of the liquid hole 111 corresponds to on the non-metal base plate 12;
the polar column 2 and the polar column 2 comprise positive poles 21 and negative poles 22, the positive poles 21 and the negative poles 22 are symmetrically arranged on two sides of the liquid injection hole 111, the positive poles 21 and the negative poles 22 both penetrate through the metal substrate 11 and the non-metal substrate 12 and extend towards two sides, and insulating sealing elements 23 are connected between the positive poles 21 and the metal substrate 11 and between the negative poles 22 and the metal substrate 11;
the enclosing structure 3 comprises an insulated base station 31 and a blocking edge 32, the base station 31 is provided with two cavities which are symmetrically arranged at two ends of the non-metal substrate 12, the base station 31 comprises an inner cavity, and two rectangular through holes 311 communicated with the cavities are symmetrically arranged at two sides of the base station 31; the flanges 32 are provided with two, two first hooks 321 are symmetrically arranged at two ends of the two flanges 32, two ends of the flanges 32 are respectively connected with the two base platforms 31 through the first hooks 321 in a clamping manner, and the base platforms 31 and the flanges 32 which are connected with each other form a surrounding structure 3.
Specifically, the bracket 33 and the base 31 are integrally formed with the non-metal substrate 12, so that after the lithium battery cover plate is mounted on the lithium battery main body, a certain interval is formed between the metal substrate 11 of the lithium battery cover plate and the pole group in the lithium battery main body, and the metal substrate 11 and the pole group are separated by the non-metal structure, thereby preventing the metal substrate 11 and the pole group from being in contact with each other to cause short circuit; and set up insulating enclosure structure 3 and surround utmost point post 2 in the middle of, the utmost point ear of connecting on positive post 21 and the negative pole post 22 is restricted in enclosing enclosure structure 3, can prevent that utmost point ear and lithium cell main body's casing contact from taking place the short circuit.
Specifically, the base 31 is symmetrically disposed at two ends of the non-metal substrate 12 and perpendicular to the non-metal substrate 12, and two rectangular through holes 311 communicating with the cavity of the non-metal substrate 12 are symmetrically disposed on two side surfaces of the base 31 in the width direction of the non-metal substrate 12; two first clamping hooks 321 are symmetrically arranged on the same side face of the flange 32 close to the two end portions of the flange, the flange 32 is clamped in the rectangular through holes 311 on the same side of the two base stations 31 through the first clamping hooks 321 at the two ends of the flange 32 respectively, the base stations 31 and the flange 32 after connection form a rectangular enclosure structure 3, and the anode post 21, the cathode post 22 and the tabs connected to the two poles are surrounded in the middle, so that the tabs can be prevented from being bent insufficiently and being touched with the shell of the lithium battery to cause short circuit.
The base station 31 and the rib 32 connected with each other form the rectangular enclosure structure 3, and can also play a certain limiting and protecting role on the pole group of the lithium battery main body extending into the rectangular enclosure structure, so that the pole group is prevented from generating large play, and the stability of the whole lithium battery structure is ensured.
Referring to fig. 3, 4 and 6, further, a plurality of first through holes 112 are symmetrically disposed on the metal substrate 11, the injection hole 111 is used as a symmetric center, a plurality of second through holes 122 are symmetrically disposed on the non-metal substrate 12, the second through holes 122 are coaxially disposed with the first through holes 112, the coaxial first through holes 112 and the second through holes 122 form an installation hole, a rivet 24 is disposed in each installation hole, an insulating sealing member 23 is disposed between the rivet 24 and the installation hole, an end cap end of the rivet 24 is clamped to one side of the non-metal substrate 12, the other end of the rivet 24 is connected to the same conductive block 25 on one side of the metal substrate 11, the rivet 24 and the conductive block 25 form a pole, wherein the pole on one side of the injection hole 111 is the positive pole 21, and the pole on the other side of the injection hole 111 is the negative pole 22.
Further, the rivet 24 of the positive electrode tab 21 is made of aluminum, and the rivet 24 of the negative electrode tab 22 is made of copper.
Further, a positive electrode conductive sheet 26 is provided between the conductive piece 25 of the positive electrode tab 21 and the metal substrate 11, and a negative electrode insulating sheet 27 is provided between the conductive piece 25 of the negative electrode tab 22 and the metal substrate 11. It is conceivable that the positive post 21 is connected to the positive conductive sheet 26 and the negative post 22 is connected to the negative insulation sheet 27, so that the entire lithium battery case is positively charged and aluminum can be prevented from being corroded at a low potential.
Referring to fig. 3, further, the positive electrode conducting strip 26 and the negative electrode insulating strip 27 are both of a groove structure having a groove for embedding the conducting block 25 therein. It is conceivable that the positive electrode conductive sheet 26 and the negative electrode insulating sheet 27 are provided in a groove-shaped structure, and the conductive blocks 25 can be fitted in the grooves of the groove-shaped structure, so that the connection stability between the positive electrode conductive sheet 26 and the negative electrode insulating sheet 27 and the conductive blocks 25 connected thereto can be improved, thereby preventing play therebetween and improving the stability of the entire structure.
Referring to fig. 3, 4, 5 and 6, further, a support 33 is further disposed on the non-metal substrate 12, the support 33 includes two support plates 331, the two support plates 331 extend along the length direction of the non-metal substrate 12, the two support plates 331 are symmetrically disposed in parallel in the width direction of the non-metal substrate 12 and are located at two sides of the notch 121, and a plurality of support bars 332 are connected between the two support plates 331 at intervals. Specifically, the support bars 332 are perpendicular to the two support plates 331, the support bars 332 are symmetrically arranged, and the support bars 332 play a role in increasing the strength of the support 33.
Further, two ends of the supporting plate 331 are symmetrically provided with two clamping holes 333, the rib 32 is provided with a second clamping hook 322 corresponding to the clamping holes 333, and the rib 32 is clamped with the clamping holes 333 through the second clamping hook 322.
Specifically, the two ends of the rib 32 are connected with the base 31 by the first hooks 321, the second hooks 322 are symmetrically arranged at the middle section of the rib 32, and the second hooks 322 are connected with the supporting plate 331 of the bracket 33 by the first hooks 331, so that the connection stability of the rib 32 can be further improved. It can be thought that the rib 32 is connected with the base 31 and the bracket 33 in a clamping manner, so that the installation and the disassembly are convenient, and the production efficiency of the lithium battery can be improved.
Preferably, one side of the rib 32, which is away from the metal substrate 11, is provided with an extending edge perpendicular to the rib, the extending edge extends to the inner side of the enclosure structure 3, and a certain interval is formed between the extending edges of the two ribs 32; the extension limit can play further limiting action to the utmost point ear, prevents that the utmost point ear from taking place the short circuit with the casing contact of lithium cell.
Further, the length of the supporting plate 331 is 32mm, and the interval between the supporting bars 332 is 7 ± 0.5mm.
Further, the non-metal substrate 12, the base 31 and the bracket 33 are integrally formed, and may be made of PP.
Further, one ends of the positive and negative posts 21 and 22 near the non-metal substrate 12 are respectively connected with a positive tab 28 and a negative tab 29. The positive electrode tab 28 is made of aluminum, and the negative electrode tab 29 is made of copper.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Various other modifications and alterations will occur to those skilled in the art upon reading the foregoing description. This need not be, nor should it be exhaustive of all embodiments. And obvious changes and modifications can be made without departing from the scope of the invention.
Claims (10)
1. A lithium battery cover plate is characterized in that: comprises the steps of (a) preparing a substrate,
the cover plate comprises a metal base plate and a non-metal base plate which are stacked together, wherein the metal base plate is provided with a liquid injection hole, and the non-metal base plate is provided with a notch corresponding to the position of the liquid injection hole;
the polar column comprises a positive pole column and a negative pole column, the positive pole column and the negative pole column are symmetrically arranged on two sides of the liquid injection hole, the positive pole column and the negative pole column penetrate through the metal substrate and the non-metal substrate and extend towards two sides, and insulating sealing elements are connected between the positive pole column and the metal substrate and between the negative pole column and the metal substrate;
the enclosing structure comprises an insulated base station and a flange, the base station is provided with two cavities and symmetrically arranged at two ends of the non-metal substrate, the base station comprises an internal cavity, and two rectangular through holes communicated with the cavity are symmetrically arranged at two sides of the base station; the flange is provided with two, two the both ends of flange are all provided with two first trips symmetrically, the both ends of flange respectively with two through first trip the base station joint, interconnect the base station with the flange is constituteed and is enclosed the fender structure.
2. The lithium battery cover plate as claimed in claim 1, wherein: the symmetry is provided with a plurality of with on the metal substrate annotate the first through-hole of liquid hole for the symmetric center, the symmetry is provided with a plurality ofly respectively with each on the nonmetal base plate the coaxial second through-hole that sets up of first through-hole, it is coaxial first through-hole with an installation hole site is constituteed to the second through-hole, each all be provided with the rivet in the installation hole site, just be provided with between rivet and the installation hole site insulating seal spare, the end cap end of rivet is in one side of nonmetal base plate rather than the joint, the other end of rivet is in one side of metal substrate is connected with same conducting block, the rivet with the utmost point post is constituteed to the conducting block, wherein, is located annotate the utmost point post of liquid hole one side and be anodal post, is located annotate the utmost point post of liquid hole opposite side and be the negative pole post.
3. The lithium battery cover plate as claimed in claim 2, wherein: the rivet of the positive pole column is made of aluminum, and the rivet of the negative pole column is made of copper.
4. The lithium battery cover plate as claimed in claim 3, wherein: and an anode conducting strip is arranged between the conducting block of the anode column and the metal substrate, and a cathode insulating strip is arranged between the conducting block of the cathode column and the metal substrate.
5. The lithium battery cover plate as claimed in claim 4, wherein: the positive conducting strip with the negative pole insulating piece is the cell type structure of the recess that has seted up the confession above that the conducting block imbeds.
6. The lithium battery cover plate as claimed in claim 1, wherein: still be provided with the support on the non-metallic substrate, the support includes two backup pads, two the backup pad is followed the length direction of non-metallic substrate extends, and two the backup pad is in parallel symmetry sets up and is located in the width direction of non-metallic substrate the both sides of breach, two interval connection has a plurality of support bars between the backup pad.
7. The lithium battery cover plate as claimed in claim 6, wherein: the both ends of backup pad all the symmetry be provided with two joint holes, be provided with on the flange with the corresponding second trip in position in joint hole, the flange passes through the second trip with joint hole joint.
8. The lithium battery cover plate as claimed in claim 6, wherein: the length of backup pad is 32mm, the interval between the support bar is 7 ± 0.5mm.
9. The lithium battery cover plate as claimed in claim 6, wherein: the nonmetal base plate, the base station and the support are of an integrally formed structure.
10. The lithium battery cover plate as claimed in claim 1, wherein: and one end of the positive pole column and one end of the negative pole column, which are close to the non-metal substrate, are respectively connected with a positive pole lug and a negative pole lug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222305331.9U CN218334023U (en) | 2022-08-31 | 2022-08-31 | Lithium battery cover plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222305331.9U CN218334023U (en) | 2022-08-31 | 2022-08-31 | Lithium battery cover plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218334023U true CN218334023U (en) | 2023-01-17 |
Family
ID=84886715
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222305331.9U Active CN218334023U (en) | 2022-08-31 | 2022-08-31 | Lithium battery cover plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218334023U (en) |
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2022
- 2022-08-31 CN CN202222305331.9U patent/CN218334023U/en active Active
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