CN112928394B - Elastic conductive sheet composed of plastic spring sheet and metal tongue-shaped spring sheet - Google Patents
Elastic conductive sheet composed of plastic spring sheet and metal tongue-shaped spring sheet Download PDFInfo
- Publication number
- CN112928394B CN112928394B CN201911231230.8A CN201911231230A CN112928394B CN 112928394 B CN112928394 B CN 112928394B CN 201911231230 A CN201911231230 A CN 201911231230A CN 112928394 B CN112928394 B CN 112928394B
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- Prior art keywords
- plastic
- metal
- sheet
- conducting strip
- tongue
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- 239000002184 metal Substances 0.000 title claims abstract description 72
- 239000000463 material Substances 0.000 claims abstract description 4
- 238000003825 pressing Methods 0.000 claims description 3
- 238000004080 punching Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 11
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 239000007769 metal material Substances 0.000 abstract description 3
- 230000007547 defect Effects 0.000 abstract description 2
- 230000008093 supporting effect Effects 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- -1 particularly Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- 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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- Springs (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
The elastic conducting strip consists of metal conducting strip and plastic skeleton, and the metal conducting strip has at least one tongue-shaped conducting strip and the plastic skeleton has one plastic conducting strip in the position corresponding to the tongue-shaped conducting strip of the metal conducting strip. The invention utilizes the plastic framework to have good elasticity and fatigue strength resistance, overcomes the defect of poor metal elasticity, realizes the possibility of the conductive sheet made of metal materials with poor elasticity, and realizes the possibility of the deep-drawing part as an elastic conductive sheet, particularly the possibility of processing the elastic conductive sheet on the side wall of the deep-drawing concave table, and the metal conductive sheet has good elasticity and fatigue strength resistance. The implementation of the invention reduces the harsh requirements of the metal conducting strip on materials, and reduces the processing procedures and the complexity of the metal conducting strip, thereby greatly reducing the manufacturing cost of the metal conducting strip.
Description
Technical Field
The invention relates to an elastic conducting strip formed by a plastic elastic strip and a metal tongue-shaped elastic strip, which is particularly suitable for improving the elasticity and fatigue resistance of a metal conducting strip with poor elasticity.
Background
The elastic conductive sheet is generally formed by processing and stamping a metal sheet with good elasticity and conductivity. However, some metal materials, particularly, metal sheets used for the drawing process, have poor elasticity and cannot be used as elastic conductive sheets unless complicated heat treatment processes are performed after the part is formed, thus greatly increasing the complexity of the part processing and the manufacturing cost.
Disclosure of Invention
The invention aims to solve the problems, and provides an elastic conductive sheet which is formed by a plastic spring sheet and a metal tongue-shaped spring sheet and has simple processing procedure and low manufacturing cost.
The invention is composed of a metal conducting plate and a plastic framework, wherein the metal conducting plate is fixed on the plastic framework to form a functional component.
The metal conducting strip is formed by stamping a metal sheet, and at least one tongue-shaped elastic piece is arranged on the metal conducting strip, three sides of the tongue-shaped elastic piece are provided with openings, and only one narrow side is connected with the main body of the metal conducting strip.
Preferably, the tongue-shaped spring plate may have a protrusion higher than the base plane of the metal conductive sheet, and the protrusion may be circular arc, inclined or a combination thereof.
The plastic framework is formed by pressing plastic materials, the plastic framework is provided with a plastic spring piece at the position corresponding to the tongue-shaped spring piece of the metal conducting plate, the plastic spring piece is of a thin-wall structure and is provided with three-side openings, the narrow side of the plastic spring piece is connected with the main body of the plastic framework, and the plastic spring piece has good elasticity and fatigue resistance.
The plastic elastic sheet is attached below the tongue-shaped elastic sheet of the metal conducting sheet, so that the tongue-shaped elastic sheet is supported, when the tongue-shaped elastic sheet is deformed under the action of external force, the tongue-shaped elastic sheet and the plastic elastic sheet are elastically deformed, when the external force disappears, the plastic elastic sheet is restored to the original initial shape, and meanwhile, under the supporting action of the plastic elastic sheet, the tongue-shaped elastic sheet is restored to the original initial shape.
Preferably, the plastic spring plate can have a protrusion higher than the base plane of the plastic skeleton, and the protrusion can be circular arc, inclined plane or a combination thereof.
Under the condition that the tongue-shaped elastic sheet of the metal conducting strip is not protruded, or under the condition that the metal conducting strip is difficult to process the protruded tongue-shaped elastic sheet on the side wall of the deep drawing concave table, the plastic elastic sheet can still be processed into a protrusion higher than the base plane of the plastic framework, the protruded plastic elastic sheet has a supporting force on the tongue-shaped elastic sheet under the tongue-shaped elastic sheet of the metal conducting strip, the tongue-shaped elastic sheet deforms under the supporting force of the protruded plastic elastic sheet to form a protrusion higher than the base plane of the metal conducting strip, and the elastic conducting strip with good elasticity and fatigue resistance performance is formed.
The metal conducting plate is provided with a plurality of fixing holes on the side wall plane.
The plastic framework is provided with a fixing barb at the position corresponding to the fixing hole of the metal conducting strip. After the metal conducting strip is arranged on the plastic framework, the fixing barbs of the plastic framework clamp the bottom edges of the square fixing holes of the metal conducting strip, so that the metal conducting strip is fixed on the plastic framework to form a whole.
The invention makes up the defect of poor elasticity of part of metal sheets (particularly metal sheets for stamping and drawing) by utilizing good elasticity and fatigue resistance of the plastic framework, realizes the possibility of conducting plates made of metal materials with poor elasticity, realizes the possibility of drawing parts as elastic conducting plates, and particularly realizes the possibility of processing the elastic conducting plates on the side wall of a drawing concave table, wherein the metal conducting plates have good elasticity and fatigue resistance. The implementation of the invention reduces the harsh requirements of the metal conducting strip on the material performance, and reduces the processing procedures and the complexity of the metal conducting strip, thereby greatly reducing the manufacturing cost of the metal conducting strip.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions of the prior art, the drawings that are needed in the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a side view of a metal conductive sheet showing a tongue-shaped spring sheet according to embodiment 1 of the present invention;
FIG. 2 is a side view of a plastic frame showing a plastic dome according to example 1 of the present invention;
FIG. 3 is a schematic cross-sectional view showing both the implementation dome and the convex tongue dome;
FIG. 4 is a schematic cross-sectional view showing the metal conductive sheet secured to the plastic backbone;
FIG. 5 is an isometric view of a metal conductive sheet of example 2 of the present invention;
FIG. 6 is a partial cross-sectional view showing a raised radial dome on the sidewall of the drawing recess;
FIG. 7 is a schematic cross-sectional view of an embodiment 3 of the present invention using elastic conductive sheets to realize 64 cylindrical battery modules in series and parallel;
wherein: 1. metal conducting strip, 2, tongue-shaped spring piece, 3, opening, 4, plastic skeleton, 5, plastic spring piece, 6, bellied plastic spring piece, 7, bellied tongue-shaped spring piece, 8, radial tongue-shaped spring piece, 9, deep-drawing concave station, 10, square fixed orifices, 11, fixed barb, 12, bellied radial plastic spring piece, 13, bellied radial tongue-shaped spring piece, 14, cylindrical battery 15, battery module A,16, battery module B,17, battery module C,18, battery module D,19, positive cap, 20, negative pole shell.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Implementation example 1:
embodiment 1 is composed of a metal conductive sheet (1) and a plastic skeleton (4), wherein the metal conductive sheet is formed by punching and drawing a 0.3mm thick drawing steel plate 08AL into a square box with round corners at the periphery, 2 tongue-shaped elastic sheets (2) and 2 raised tongue-shaped elastic sheets (7) are respectively arranged on two side surfaces of the square box, three sides of each tongue-shaped elastic sheet are provided with openings (3), and only one narrow side is connected with the main body of the metal conductive sheet. The convex tongue-shaped elastic sheet (7) is formed by stamping a bulge higher than the basic plane of the metal conducting strip on the basis of the tongue-shaped elastic sheet, and the convex tongue-shaped elastic sheet is a combination of an arc and an inclined plane.
The plastic framework (4) is formed by pressing PA66 plastic, the appearance of the plastic framework is matched with the concave shape of the metal conducting strip, the plastic framework is provided with a plastic spring piece (5) at the position corresponding to each tongue-shaped spring piece of the metal conducting strip, the plastic spring piece is of a thin-wall structure, three sides of the plastic spring piece are provided with openings (3), the narrow sides of the plastic spring piece are connected with the plastic framework main body, and the plastic spring piece has good elasticity and fatigue resistance. The plastic spring piece is attached below the tongue-shaped spring piece of the metal conductive piece, and plays a supporting role on the tongue-shaped spring piece. The plastic spring sheet corresponding to the convex tongue-shaped spring sheet (7) is provided with a convex plastic spring sheet (6) which is matched with the tongue-shaped spring sheet in shape.
The two opposite side walls of the metal conducting strip are provided with 4 square fixing holes (10), the plastic framework is provided with a fixing barb (11) at the position corresponding to the square fixing holes of the metal conducting strip, and after the metal conducting strip is arranged on the plastic framework, the fixing barb of the plastic framework clamps the bottom edge of the square fixing holes of the metal conducting strip, so that the metal conducting strip is fixed and forms a whole with the plastic framework.
Implementation example 2:
in the embodiment example 2, a drawing concave table and a radial spring plate are added on the basis of the embodiment example 1.
The method comprises the steps of machining 16 drawing concave tables (9) on the plane of a metal conducting plate, wherein 4 radial tongue-shaped elastic pieces (8) are arranged on the circumference of each drawing concave table, and the shape and the opening of each tongue-shaped elastic piece are formed by punching and blanking before the drawing working procedure.
The shape of the plane of the plastic framework is matched with the concave table shape of the metal conducting strip, the plastic framework is provided with a convex radial plastic spring piece (12) at the position corresponding to each radial tongue-shaped spring piece (8) of the metal conducting strip, the convex plastic spring piece has a supporting force on the tongue-shaped spring piece under the tongue-shaped spring piece of the metal conducting strip, and the tongue-shaped spring piece deforms under the supporting force of the plastic spring piece to form a convex radial tongue-shaped spring piece (13).
Implementation example 3:
this embodiment 3 is an application example in which 64 cylindrical battery modules connected in series and in parallel are implemented using elastic conductive sheets on the basis of embodiment 2.
Firstly, positive electrode caps (19) of 16 cylindrical batteries are respectively spot-welded on the bottom planes of 16 deep drawing concave tables of a metal conducting plate to form a battery module A with 16 cylindrical batteries connected in parallel. The same method is used to continue the assembly into battery module B, battery module C, and battery module D.
The battery module A is arranged on the battery module B, a negative electrode shell (20) of each cylindrical battery of the battery module A is arranged in a deep drawing concave table (9) of the battery module B, the diameter of the negative electrode shell of the cylindrical battery is in clearance fit with the diameter of the deep drawing concave table, and the diameter of the negative electrode shell of the cylindrical battery is in interference fit with the diameter of each raised radial tongue-shaped spring piece. The cathode shell of the cylindrical battery is connected with the anode cap (19) of the cylindrical battery of the battery module B through the metal conducting plate, so that the battery module A and the battery module B realize the series connection of the two battery modules through the metal conducting plate, and the battery module A and the battery module B are called as a battery module AB after being connected in series. The battery module C and the battery module D are connected in series using the same method, to constitute a battery module CD.
The battery module AB and the battery module CD are placed in parallel, and the battery module AB and the battery module CD are connected in parallel through the connection of the tongue-shaped elastic pieces protruding from the side surfaces of the metal conducting plates. By the method, the series connection and parallel connection of 64 cylindrical batteries are completed, and a battery module with 32 batteries connected in parallel and 2 batteries connected in series is formed.
Claims (3)
1. The elastic conducting sheet consists of metal conducting sheet and plastic skeleton, and features that the metal conducting sheet is fixed onto the plastic skeleton to form one functional part, the metal conducting sheet is formed with metal sheet via punching, at least one plastic elastic sheet is set onto the metal conducting sheet, the plastic skeleton is formed with plastic material via pressing, and the plastic skeleton has one plastic elastic sheet in the position corresponding to the metal conducting sheet.
2. The elastic conductive sheet formed by the plastic elastic sheet and the metal tongue-shaped elastic sheet according to claim 1, wherein the plastic elastic sheet can be provided with a bulge which is higher than the basic plane of the plastic framework, and the bulge can be in a circular arc shape, an inclined plane or a combination of the circular arc shape and the inclined plane.
3. The elastic conductive sheet formed by the plastic elastic sheet and the metal tongue-shaped elastic sheet according to claim 1, wherein the plastic skeleton is provided with a fixing barb at a position corresponding to the fixing hole of the metal conductive sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911231230.8A CN112928394B (en) | 2019-12-05 | 2019-12-05 | Elastic conductive sheet composed of plastic spring sheet and metal tongue-shaped spring sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911231230.8A CN112928394B (en) | 2019-12-05 | 2019-12-05 | Elastic conductive sheet composed of plastic spring sheet and metal tongue-shaped spring sheet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112928394A CN112928394A (en) | 2021-06-08 |
| CN112928394B true CN112928394B (en) | 2023-12-01 |
Family
ID=76160740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911231230.8A Active CN112928394B (en) | 2019-12-05 | 2019-12-05 | Elastic conductive sheet composed of plastic spring sheet and metal tongue-shaped spring sheet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112928394B (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201160145Y (en) * | 2008-02-13 | 2008-12-03 | 华晶科技股份有限公司 | Battery spring structure |
| CN103594671A (en) * | 2012-08-14 | 2014-02-19 | 王怀云 | Cylindrical unit cell parallel connection method |
| CN104253289B (en) * | 2013-06-28 | 2017-06-09 | 王怀云 | Power battery module heat-sink unit and electrokinetic cell heat radiation module |
| CN208848982U (en) * | 2018-11-09 | 2019-05-10 | 王怀云 | Composite conducting strip for realizing series and parallel connection of cylindrical batteries |
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2019
- 2019-12-05 CN CN201911231230.8A patent/CN112928394B/en active Active
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| Publication number | Publication date |
|---|---|
| CN112928394A (en) | 2021-06-08 |
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