CN111478064A - Connecting terminal assembly with lead and battery pack - Google Patents
Connecting terminal assembly with lead and battery pack Download PDFInfo
- Publication number
- CN111478064A CN111478064A CN201910063428.3A CN201910063428A CN111478064A CN 111478064 A CN111478064 A CN 111478064A CN 201910063428 A CN201910063428 A CN 201910063428A CN 111478064 A CN111478064 A CN 111478064A
- Authority
- CN
- China
- Prior art keywords
- nickel
- copper
- aluminum conductor
- aluminum
- interposer
- 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.)
- Pending
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/58—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation characterised by the form or material of the contacting members
- H01R4/62—Connections between conductors of different materials; Connections between or with aluminium or steel-core aluminium conductors
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- 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
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
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- 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
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/543—Terminals
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- 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
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/571—Methods or arrangements for affording protection against corrosion; Selection of materials therefor
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
- H01R11/11—End pieces or tapping pieces for wires, supported by the wire and for facilitating electrical connection to some other wire, terminal or conductive member
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
- H01R11/11—End pieces or tapping pieces for wires, supported by the wire and for facilitating electrical connection to some other wire, terminal or conductive member
- H01R11/16—End pieces terminating in a soldering tip or socket
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/58—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation characterised by the form or material of the contacting members
- H01R4/62—Connections between conductors of different materials; Connections between or with aluminium or steel-core aluminium conductors
- H01R4/625—Soldered or welded connections
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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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Battery Mounting, Suspending (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
The invention relates to a connection terminal assembly with a lead and a battery pack. The connecting terminal assembly with a wire includes: a copper terminal; a nickel interposer; an aluminum wire comprising an aluminum conductor; the nickel adapter sheet is respectively fixed and electrically connected with the copper terminal and the aluminum conductor. According to the invention, the electric connection between the copper terminal and the aluminum conductor is realized through the nickel adapter sheet, and the potential of the nickel material is positioned between the aluminum material and the copper material, so that the risk of corrosion of the nickel-aluminum and nickel-copper connecting points can be reduced by using the nickel material.
Description
Technical Field
The invention relates to a connecting terminal assembly with a lead and a battery pack.
Background
In the field of electrical connections, a wide variety of connectors and wires are used in large numbers. Commonly used connectors are made of copper material. The wire is typically made of copper or aluminum. Copper materials have the characteristics of high cost and heavy weight. The aluminum material has the characteristics of low cost and light weight. However, copper materials and aluminum materials have different electric potentials, and direct connection of the copper materials and the aluminum materials can easily cause corrosion due to the existence of a potential difference. Therefore, how to fully utilize the advantages of copper and aluminum materials is one of the problems to be solved by those skilled in the art.
Disclosure of Invention
It is an object of the present invention to overcome at least one of the disadvantages of the prior art and to provide a connection terminal assembly with a lead wire and a battery pack that can use both aluminum and copper materials.
In order to achieve the above purpose, the invention is realized by the following technical scheme:
a connection terminal assembly with a wire, comprising:
a copper terminal;
a nickel interposer;
an aluminum wire comprising an aluminum conductor;
the nickel adapter sheet is respectively fixed and electrically connected with the copper terminal and the aluminum conductor.
According to one embodiment of the invention, the nickel interposer has two ends along the length direction; one end of the nickel adapter sheet is connected with the copper terminal, and the other end of the nickel adapter sheet is connected with the aluminum conductor.
According to one embodiment of the invention, the nickel interposer is welded to the aluminum conductor.
According to one embodiment of the invention, the nickel interposer and the aluminum conductor are integrally connected by laser welding.
According to one embodiment of the invention, the nickel interposer is crimped with the copper terminal and/or the aluminum conductor.
According to one embodiment of the invention, the nickel interposer is soldered to the copper terminals.
According to an embodiment of the invention, the device further comprises a copper connecting sheet connected with the copper terminal, wherein the copper connecting sheet protrudes out of the copper terminal; the nickel switching piece with the copper connection piece is connected, the nickel switching piece with the copper terminal passes through the copper connection piece is connected.
According to one embodiment of the invention, the nickel interposer and the aluminum conductor are connected by laser welding; the nickel adapter sheet is welded and connected with the copper connecting sheet through laser welding; the welding point of the nickel adapter sheet and the aluminum conductor and the welding point of the nickel adapter sheet and the copper connecting sheet are positioned on the same side.
According to one embodiment of the invention, the nickel interposer is positioned between the copper interposer and the aluminum conductor, the aluminum conductor being positioned non-overlapping with the copper connection pad.
According to one embodiment of the invention, the copper terminal and the copper connecting sheet are of an integral structure.
According to one embodiment of the present invention, the copper terminal is provided in non-contact with the aluminum conductor.
According to one embodiment of the present invention, the nickel interposer is soldered to one of the copper terminal and the aluminum conductor and crimped to the other.
According to one embodiment of the present invention, the aluminum conductor is a flexible wiring board or a flexible flat cable.
According to one embodiment of the present invention, the aluminum wire has an insulating layer covering the aluminum conductor in a length direction of the aluminum wire.
Battery package coupling assembling, its characterized in that includes:
a support;
the electrode connecting plate is fixedly supported on the bracket and is connected with the electrode of the battery core; and
the wired connection terminal assembly as described above;
the aluminum conductor is in contact with and electrically connected to the electrode connection plate.
According to one embodiment of the invention, the electrode connection plate is an aluminum plate.
An embodiment according to the invention is characterized by comprising:
a plurality of electrode connection plates; and
a plurality of the aforementioned wired connection terminal assemblies;
the electrode connecting plates are respectively electrically connected with the connecting terminal assemblies and used for transmitting signals.
According to the invention, the electric connection between the copper terminal and the aluminum conductor is realized through the nickel adapter sheet, and the potential of the nickel material is positioned between the aluminum material and the copper material, so that the risk of corrosion of the nickel-aluminum and nickel-copper connecting points can be reduced by using the nickel material. The nickel switching piece passes through laser welding welded connection with the aluminum product, and the solder joint is located the nickel switching piece, can prevent that laser welding from burning through the aluminum product and can't effectively weld nickel switching piece and aluminium conductor. The copper terminal is provided with a copper connecting sheet, so that the connection of the copper terminal and the nickel adapter sheet can be facilitated. The connecting terminal assembly provided by the invention can utilize the advantages of light weight and low cost of aluminum materials and the advantage of good electrical connection performance of copper materials.
Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which proceeds with reference to the accompanying drawings.
Drawings
Fig. 1 is a schematic diagram of a battery pack according to an embodiment of the present invention.
Fig. 2 is an enlarged schematic view of a portion a in fig. 1.
Fig. 3 is a schematic structural diagram of the connection terminal assembly shown in fig. 1.
Fig. 4 is a side view of the connection terminal assembly of fig. 3.
Detailed Description
The invention is described in detail below with reference to the attached drawing figures:
as shown in fig. 1 and 2, the battery pack 100 has a plurality of battery cells 110, and the specific number of the battery cells 110 may be determined according to the actual application. The plurality of battery cells 110 are arranged at desired positions. A bracket 120 is disposed above the plurality of battery cells 110. The bracket 120 may be supported at the upper end of the battery cell 110, or may mechanically couple a plurality of battery cells 110 together.
The electrode connecting plate 121 is provided on the holder 120. The electrode connection plate 121 serves to electrically connect the electrodes of the battery cell 110. In the example shown in the figure, the number of the electrode connecting plates 121 is eight, and one electrode connecting plate 120 is arranged for each electrode of the battery cell 110 to be connected. The number of the electrode connection plates 121 may be determined according to actual needs. The electrode connecting plate 120 is an aluminum plate.
As shown in fig. 2 and 3, the present invention further includes a wired connection terminal assembly 130, and the wired connection terminal assembly 130 includes a copper terminal 131, a nickel interposer 132, and an aluminum conductor 133. The copper terminals 131 are electrically connected to the aluminum conductors 133 through nickel interposer 132. The copper terminal 131 may be any available connection terminal, either a female terminal or a male terminal. In the example shown, the copper terminal 131 is a female terminal provided with a plug hole 134. The insertion hole 134 is used for insertion connection with the male terminal. The copper terminal 131 is connected to a copper connection piece 135. The copper connecting tab 135 extends a selected length from the end of the copper terminal 131. The copper connecting piece 135 is in the shape of a strip. The copper connecting plate 135 is used for mechanical connection and electrical connection with the nickel adapter plate 132, and the shape and structure thereof can be changed according to actual needs. The copper terminal 131 and the copper connecting piece 135 are of an integrated structure. The copper terminal 131 and the copper connecting piece 135 may be manufactured by stamping.
The nickel interposer 132 has two ends (136, 137) along the length direction; one end 136 of the nickel interposer 132 is fixed and electrically connected to the copper connection pad 135. The nickel adapter plate 132 and the copper connecting plate 135 are connected by crimping, welding or a combination of crimping and welding. In a preferred embodiment of the present invention, the nickel adapter 132 and the copper connecting plate 135 are welded together by laser welding.
The other end 137 of the nickel interposer 132 is fixed and electrically connected to the aluminum conductor 133. The nickel interposer 132 and the aluminum conductor 133 are connected by crimping, welding, or a combination of crimping and welding. In a preferred embodiment of the present invention, the nickel interposer 132 and the aluminum conductor 133 are welded and connected together by laser welding. The welding spot 138 is located on the nickel interposer 132, i.e. during laser welding, the laser emitter emits laser light towards the nickel interposer 132.
The nickel interposer 132 is positioned between the copper strap 135 and the aluminum conductor 133. As shown in fig. 4, the aluminum conductor 133 is provided so as not to overlap the copper connection piece 132 and is provided so as not to contact therewith. The welding point of the nickel adapter sheet 132 and the copper connecting sheet 135 is positioned on the copper connecting sheet 135; the nickel interposer 132 and the solder joints of the aluminum conductors 133 are located on the nickel interposer 132.
In the present invention, the aluminum conductor 133 may be coated with an insulating layer along the length direction to form an aluminum wire. Preferably, the aluminum conductor 133 may be an aluminum conductor in a flexible printed circuit board or a flexible flat cable.
As shown in fig. 1, each electrode connection plate 121 is connected to one connection terminal assembly 130. The electrode connecting plate 121 is mechanically and electrically connected to the aluminum conductor 133.
In the battery pack 100 according to the present invention, the voltage signal of the battery cell 110 may be transmitted through the electrode connection plate 121 and the connection terminal assembly 130.
According to the invention, the electric connection between the copper terminal and the aluminum conductor is realized through the nickel adapter sheet, and the potential of the nickel material is positioned between the aluminum material and the copper material, so that the risk of corrosion of the nickel-aluminum and nickel-copper connecting points can be reduced by using the nickel material. The nickel switching piece passes through laser welding welded connection with the aluminum product, and the solder joint is located the nickel switching piece, can prevent that laser welding from burning through the aluminum product and can't effectively weld nickel switching piece and aluminium conductor. The copper terminal is provided with a copper connecting sheet, so that the connection of the copper terminal and the nickel adapter sheet can be facilitated.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the present invention, and any modifications, equivalents or improvements that are within the spirit of the present invention are intended to be covered by the following claims.
Claims (17)
1. A connection terminal assembly with a wire, comprising:
a copper terminal;
a nickel interposer;
an aluminum wire comprising an aluminum conductor;
the nickel adapter sheet is respectively fixed and electrically connected with the copper terminal and the aluminum conductor.
2. The leaded connection terminal assembly of claim 1, wherein the nickel interposer has two ends along a length direction; one end of the nickel adapter sheet is connected with the copper terminal, and the other end of the nickel adapter sheet is connected with the aluminum conductor.
3. The leaded connection terminal assembly of claim 1, wherein the nickel interposer is solder bonded to the aluminum conductor.
4. The wired connection terminal assembly according to claim 3, wherein the nickel interposer and the aluminum conductor are integrally connected by laser welding.
5. The leaded connection terminal assembly of claim 1, wherein the nickel interposer is crimped to the copper terminal and/or aluminum conductor.
6. The leaded connection terminal assembly of claim 1, wherein the nickel interposer is solder bonded to the copper terminal.
7. The wired connection terminal assembly of claim 6, further comprising a copper connecting tab connected to the copper terminal, the copper connecting tab protruding from the copper terminal; the nickel switching piece with the copper connection piece is connected, the nickel switching piece with the copper terminal passes through the copper connection piece is connected.
8. The leaded connection terminal assembly of claim 7, wherein the nickel interposer is connected to the aluminum conductor by laser welding; the nickel adapter sheet is welded and connected with the copper connecting sheet through laser welding; the welding point of the nickel adapter sheet and the aluminum conductor and the welding point of the nickel adapter sheet and the copper connecting sheet are positioned on the same side.
9. The wired connection terminal assembly of claim 8, wherein the nickel interposer is positioned between the copper interposer and the aluminum conductor, the aluminum conductor being positioned non-overlapping with the copper strap.
10. The wired connection terminal assembly of claim 7, wherein the copper terminal is of unitary construction with the copper connection tab.
11. The wired connection terminal assembly of claim 1, wherein the copper terminal is disposed in non-contact with the aluminum conductor.
12. The leaded connection terminal assembly of claim 1, wherein the nickel interposer is solder bonded to one of the copper terminal and the aluminum conductor and crimped to the other.
13. A terminal assembly according to claim 1, wherein the aluminum conductor is a flexible wiring board or a flexible flat cable.
14. The leaded connection terminal assembly of claim 1, wherein the aluminum lead has an insulation layer covering the aluminum conductor along the length of the aluminum lead.
15. Battery package coupling assembling, its characterized in that includes:
a support;
the electrode connecting plate is fixedly supported on the bracket and is connected with the electrode of the battery core; and
the wired connection terminal assembly according to any one of claims 1 to 14;
the aluminum conductor is in contact with and electrically connected to the electrode connection plate.
16. The battery pack connection assembly according to claim 15, wherein the electrode connection plate is an aluminum plate.
17. The battery pack connection assembly of claim 15, comprising:
a plurality of electrode connection plates; and
a plurality of wired connection terminal assemblies according to any one of claims 1 to 14;
the electrode connecting plates are respectively electrically connected with the connecting terminal assemblies and used for transmitting signals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910063428.3A CN111478064A (en) | 2019-01-23 | 2019-01-23 | Connecting terminal assembly with lead and battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910063428.3A CN111478064A (en) | 2019-01-23 | 2019-01-23 | Connecting terminal assembly with lead and battery pack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111478064A true CN111478064A (en) | 2020-07-31 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910063428.3A Pending CN111478064A (en) | 2019-01-23 | 2019-01-23 | Connecting terminal assembly with lead and battery pack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111478064A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113092835A (en) * | 2021-04-01 | 2021-07-09 | 东莞市晟合科技有限公司 | Detection connecting line and manufacturing method thereof |
-
2019
- 2019-01-23 CN CN201910063428.3A patent/CN111478064A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113092835A (en) * | 2021-04-01 | 2021-07-09 | 东莞市晟合科技有限公司 | Detection connecting line and manufacturing method thereof |
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