CN115312982A - Battery conductive frame - Google Patents
Battery conductive frame Download PDFInfo
- Publication number
- CN115312982A CN115312982A CN202211073105.0A CN202211073105A CN115312982A CN 115312982 A CN115312982 A CN 115312982A CN 202211073105 A CN202211073105 A CN 202211073105A CN 115312982 A CN115312982 A CN 115312982A
- Authority
- CN
- China
- Prior art keywords
- battery
- fixing unit
- conductive sheet
- fixing
- pressing
- 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
Links
- 238000003466 welding Methods 0.000 claims abstract description 50
- 238000003825 pressing Methods 0.000 claims abstract description 42
- 229910000679 solder Inorganic materials 0.000 claims description 16
- 238000000034 method Methods 0.000 description 8
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 239000007769 metal material Substances 0.000 description 4
- 238000002955 isolation Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003792 electrolyte Substances 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- 239000007773 negative electrode material Substances 0.000 description 2
- 239000007774 positive electrode material Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 239000010405 anode material Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- OJIJEKBXJYRIBZ-UHFFFAOYSA-N cadmium nickel Chemical compound [Ni].[Cd] OJIJEKBXJYRIBZ-UHFFFAOYSA-N 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000010406 cathode material Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000002001 electrolyte material Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 230000003446 memory effect Effects 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- -1 separator Substances 0.000 description 1
Images
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
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
-
- 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
- H01M50/503—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing characterised by the shape of the interconnectors
-
- 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
- H01M50/505—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing comprising a single busbar
-
- 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
- H01M50/514—Methods for interconnecting adjacent batteries or cells
- H01M50/516—Methods for interconnecting adjacent batteries or cells by welding, soldering or brazing
-
- 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)
Abstract
The invention relates to a battery conducting frame which comprises a conducting strip, a plurality of first protruding welding parts and a fixing unit. The first protruding welding part is arranged on the first surface of the conducting strip, and the conducting strip is connected with the battery cell through the first protruding welding part. The fixing unit comprises a fixing part and a pressing part, wherein the fixing part is used for connecting the battery core, and the pressing part is used for pressing the second surface of the conducting plate so as to improve the connection strength between the conducting plate and the battery core and avoid the conducting plate from being separated from the battery core.
Description
Technical Field
The invention relates to a battery conducting frame which is used for connecting a battery core, can improve the connection strength between the battery core and the battery conducting frame and can prevent the battery conducting frame from being separated from the battery core.
Background
The secondary battery mainly includes nickel-hydrogen battery, nickel-cadmium battery, lithium ion battery, lithium polymer battery, the lithium battery has the advantages of high energy density, high operating voltage, large using temperature range, no memory effect, long service life, capability of being charged and discharged for many times, and the like, and is widely used in portable electronic products such as mobile phones, notebook computers, digital cameras, and the like, and more expands in the automobile field in recent years.
The Cell structure mainly includes a positive electrode material, an electrolyte, a negative electrode material, an isolation layer and a case, wherein the positive electrode material and the negative electrode material are separated by the isolation film to avoid short circuit, and the electrolyte is disposed in the porous isolation film and works as ionic charge conduction. The casing is used to cover the above-mentioned cathode material, separator, electrolyte and anode material, and generally, the casing is usually made of metal material.
When the battery pack is used, a plurality of battery cells are connected in series and/or in parallel through the battery conducting frame to form the battery pack, so that the battery pack can output voltage required by a product. Generally, the battery conductive frame and the battery core are connected by electric welding, and during the electric welding, the temperature of the battery conductive frame and the battery core needs to be increased, and the battery conductive frame is pressed against the positive electrode/negative electrode shell of the battery core to complete the connection between the battery conductive frame and the battery core. However, in the process of welding or using the battery pack, the battery conductive frame and the battery core may be loosened due to the external force, and the battery pack may not be used normally.
Disclosure of Invention
The present invention provides a battery conductive frame, which mainly comprises a conductive sheet and a fixing unit, wherein the conductive sheet is welded on a battery cell through at least one first protruding welding part and is used for connecting a plurality of battery cells in series or in parallel. The fixing unit can also be connected with the battery core in a welding mode and is contacted with part or all of the conducting strips in a pressing mode so as to strengthen the connection strength between the conducting strips and the battery core. The battery conducting frame can effectively prevent the battery conducting frame and the battery core from loosening due to the action of external force in the process of manufacturing or using the battery pack, and can effectively improve the reliability of the product.
In order to achieve the above object, the present invention provides a battery conductive frame, including: the conductive sheet comprises a first surface and a second surface, wherein the first surface and the second surface are two opposite surfaces; a plurality of first projection welding parts arranged on the first surface of the conducting plate and used for connecting a plurality of battery cells; and the fixing unit comprises a fixing part and at least one pressing part, wherein the fixing part is used for connecting the battery core, and the pressing part is used for pressing the conducting sheet.
Preferably, the press-fit part of the fixing unit overlaps the first projection welding part of the conductive sheet.
Furthermore, the battery conductive frame further comprises at least one second protruding welding part located on the pressing part of the fixing unit, and the pressing part of the fixing unit is connected with the second surface of the conductive sheet through the second protruding welding part.
Furthermore, the battery conductive frame also comprises at least one third projection welding part positioned on the fixing part of the fixing unit, and the fixing part of the fixing unit is connected with the battery core through the third projection welding part.
Preferably, the fixing unit includes two fixing portions respectively connected to different battery cells.
Preferably, the fixing unit is provided in plurality and is connected with the plurality of battery cells.
Preferably, the fixing unit includes two pressing parts, and connects the same battery cell through the two pressing parts.
In at least one embodiment of the present invention, the conductive sheet includes a plurality of branches, and the first protruding solder is disposed on the branches.
Preferably, the fixing unit has a conductivity smaller than that of the conductive sheet.
Preferably, the thickness of the fixing unit is smaller than that of the conductive sheet.
Drawings
Fig. 1 is a schematic cross-sectional view of a battery conductive frame and a battery cell according to an embodiment of the invention.
Fig. 2 is a top perspective view of the battery conductive frame and the battery core according to the above embodiment of the present invention.
Fig. 3 is a schematic cross-sectional view of a battery conducting frame and a battery cell according to another embodiment of the invention.
Fig. 4 is a top perspective view of the battery conductive frame and the battery core according to the above embodiment of the present invention.
Fig. 5 is a cross-sectional view of another embodiment of the battery conductive frame and the battery cell of the present invention.
Fig. 6 is a top perspective view of the battery conductive frame and the battery core according to the above embodiment of the present invention.
Description of reference numerals: 10-a battery conducting rack; 11-a conductive sheet; 111-a first surface; 112-interval; 113-a second surface; 115-; a first projection welding part; 117-branch; 12-a battery cell; 121-a housing; 13-a fixation unit; 131-a fixed part; 132-a connecting portion; 133-a press fit; 135-second projection weld; 137-third projection weld.
Detailed Description
Referring to fig. 1 and fig. 2, a cross-sectional view and a top perspective view of an embodiment of a battery conductive frame and a battery cell according to the invention are shown. The battery conductive frame 10 is used for connecting a plurality of battery cells 12 and includes a conductive sheet 11 and at least one fixing unit 13, wherein the conductive sheet 11 is used for connecting the plurality of battery cells 12 in series or in parallel.
Generally, the conductive sheet 11 is usually made of a metal material with low resistance and high conductivity, such as copper, so as to reduce the energy loss caused by the charging and discharging of the battery cell 12 through the conductive sheet 11.
In practical applications, the conductive sheets 11 and the case 121 of the battery cell 12 are connected by welding, such as resistance welding, which is a process technique for joining dissimilar metals by heating or pressing. When the conductive sheet 11 has a high conductivity, it may be disadvantageous to resistance-weld the conductive sheet 11 and the battery cell 12.
The conductive sheet 11 includes a first surface 111 and a second surface 113, wherein the first surface 111 and the second surface 113 are two surfaces facing each other on the conductive sheet 11, for example, the first surface 111 is a lower surface, and the second surface 113 is an upper surface. The first surface 111 of the conductive sheet 11 is provided with a plurality of first protruding solder portions 115, wherein the first protruding solder portions 115 may be bumps protruding from the first surface 111 of the conductive sheet 11 and are used for connecting the battery cells 12.
In an embodiment of the present invention, the first protruding solder portion 115 may be formed on the first surface 111 of the conductive sheet 11 by stamping, and the second surface 113 of the conductive sheet 11 forms at least one concave portion, wherein the position of the concave portion corresponds to the position of the first protruding solder portion 115.
Of course, the formation of the first projection solder 15 on the conductive sheet 11 by press forming is only an embodiment of the present invention, and is not limited by the claims of the present invention. In practical applications, the conductive sheet 11 may be manufactured in other manners, such as manufacturing the conductive sheet 11 and the first protruding solder 115 in a casting manner, wherein there will be no recess on the second surface 113 of the conductive sheet 11.
In the welding process, the first protruding welding portion 115 of the conductive sheet 11 may be connected to the case 121 of the battery cell 12, wherein the case 121 is made of a metal material, such as a positive electrode or a negative electrode connected to the case 121. Then, a welding current is supplied to the conductive sheet 11, the first projection welding part 115, and the case 121 of the battery cell 12, so that the temperature of the first projection welding part 115 of the conductive sheet 11 and the case 121 in contact therewith rises.
When the temperatures of the conductive sheet 11, the first projection weld 115, and the case 121 of the battery cell 12 reach a certain value, they melt to form a molten pool. Then, the conductive sheet 11 and the first protruding solder part 115 apply pressure to the case 121 of the battery cell 12, so that the first protruding solder part 115 sinks into the case 121 of the battery cell 12, and after the temperatures of the conductive sheet 11, the first protruding solder part 115 and the case 121 of the battery cell 12 decrease, the connection between the conductive sheet 11 and the battery cell 12 is completed.
Although the connection between the conductive sheet 11 and the battery cell 12 can be completed in the above manner, since the conductive sheet 11 and the battery cell 12 are connected only by the contact point of the first protruding welding part 115 and the battery cell 12, the connection between the conductive sheet 11 and the battery cell 12 is not firm, and the conductive sheet 11 may be separated from the battery cell 12 during the subsequent manufacturing or use process.
In practical applications, the conductive sheet 11 is usually connected to a plurality of battery cells 12 in sequence, for example, after one end of the conductive sheet 11 is connected to the battery cell 12 on the left side of fig. 1, the other end of the conductive sheet 11 and the battery cell 12 on the right side are connected by welding.
As the above-mentioned welding sequence of the conductive sheet 11 and the plurality of battery cells 12, the conductive sheet 11 normally presses the battery cells 12 during the process of connecting the battery cells 12 on the right side. Although the pressure exerted by the conductive sheet 11 on the battery cell 12 is generally not too great, the connection between the conductive sheet 11 and the battery cell 12 is only at the first projection weld 115 and the point of contact thereof. In addition, the conductive sheet 11 is connected to the two battery cells 12 at a certain distance, so that the pressure applied by the conductive sheet 11 to the battery cell 12 on the right side generates a moment at the first protruding solder 115 connecting the conductive sheet 11 and the battery cell 12 on the left side, and may cause the conductive sheet 11 to be separated from the battery cell 12 on the left side.
In order to avoid the above situation, the present invention further provides a fixing unit 13 on the conductive sheet 11 and the battery cell 12. The fixing unit 13 includes a fixing portion 131 and a pressing portion 133, wherein the fixing portion 131 is used for connecting the housing 121 of the battery cell 12, and the pressing portion 133 is used for contacting and pressing the conductive sheet 11, so as to increase the connection strength between the conductive sheet 11 and the battery cell 12.
In an embodiment of the invention, the fixing unit 13 may be a metal sheet, wherein the fixing portion 131 and the pressing portion 133 have different installation heights, for example, the fixing portion 131 is connected to the pressing portion 133 through a connecting portion 132, wherein the fixing portion 131 is approximately parallel to the pressing portion 133, and an included angle greater than 90 degrees is formed between the connecting portion 132 and the fixing portion 131 and between the connecting portion 132 and the pressing portion 133, which is described as 90 degrees in the drawings of the present invention, so that the cross section of the fixing unit 13 is stepped.
In addition, in the drawings of the present invention, the connection portion 132 of the fixing unit 13 is attached to the side surface of the conductive sheet 11, but in different embodiments, a gap may be formed between the connection portion 132 of the fixing unit 13 and the conductive sheet 11.
In practical applications, after the conductive plate 11 is connected to one of the battery cells 12, the fixing unit 13 may be disposed on the battery cell 12 connected to the conductive plate 11 to strengthen the connection relationship between the conductive plate 11 and the battery cell 12. The conducting strip 11 is connected with another battery cell 12, so that the conducting strip 11 is prevented from being separated from the battery cell 12 which is connected in the process of connecting the conducting strip 11 with the other battery cell 12.
In the embodiment of the present invention, the number of the fixing units 13 and the number of the battery cells 12 are plural, wherein each fixing unit 13 is connected to each battery cell 12.
The fixing portion 131 of the fixing unit 13 may be connected to the case 121 of the battery cell 12 by welding, and the pressing portion 133 of the fixing unit 13 may also be connected to the conductive sheet 11 by welding, such as resistance welding. After the welding between the first surface 111 of the conductive sheet 11 and the case 121 of the battery cell 12 is completed by the welding apparatus, the fixing unit 13 can be welded to the case 121 of the battery cell 12 and the second surface 113 of the conductive sheet 11 by the same welding apparatus.
The fixing unit 13 is mainly used to fix the conductive sheet 11 to the battery cell 12, and is not used to transmit current. Therefore, the fixing unit 13 may be made of a metal material with low conductivity to facilitate the connection between the fixing unit 13 and the battery cell 12 and the conductive sheet 11 by welding, for example, the fixing unit 13 may be a nickel sheet. Specifically, the conductivity of the fixing unit 13 may be smaller than that of the conductive sheet 11, and the thickness of the fixing unit 13 may also be smaller than that of the conductive sheet 11.
In an embodiment of the invention, at least one second projection welding part 135 may be disposed on a surface of the pressing part 133 of the fixing unit 13, wherein the pressing part 133 is connected to the second surface 113 of the conductive sheet 11 through the second projection welding part 135. The second projection welding part 135 is arranged to facilitate the connection of the pressing part 133 of the fixing unit 13 and the second surface 113 of the conductive sheet 11 by welding.
In addition, at least one third projection welding part 137 may be disposed on the surface of the fixing part 131 of the fixing unit 13, wherein the fixing part 131 is connected to the battery cell 12 through the third projection welding part 137. The fixing unit 13 including the second projection welding portion 135 and the third projection welding portion 137 is only an embodiment of the present invention, and is not limited by the claims of the present invention.
In addition, the pressing portion 133 of the fixing unit 13 may cover the conductive sheet 11 above the first protruding solder portion 115, such that the pressing portion 133 overlaps the first protruding solder portion 115, which is beneficial to further strengthen the connection between the conductive sheet 11 and the battery cell 12 through the fixing unit 13.
In the above embodiment of the present invention, the fixing unit 13 is made of metal, and connects the battery cell 12 and the conductive sheet 11 by welding. In various embodiments, the fixing unit 13 may also be non-metal, for example, the fixing unit 13 may be plastic, and may be connected to the battery core 12 and/or the conductive sheet 11 by gluing or ultrasonic welding. The fixing unit 13 is made of metal, which is only an embodiment of the present invention and is not a limitation of the claims of the present invention.
In addition, when the fixing unit 13 connects the battery cells 12 and the conductive sheets 11 by gluing or ultrasonic welding, the second projection welding part 135 and the third projection welding part 137 may not be provided on the fixing unit 13.
In the embodiment of the invention shown in fig. 2, the conductive sheet 11 has a fork-like appearance and a plurality of branches 117 at the ends of the conductive sheet 11, wherein a space 112 is provided between adjacent branches 117, for example, a plurality of branches 117 are provided at both ends of the conductive sheet 11. The first protruding solder parts 115 are respectively disposed on the branches 117 of the conductive plate 11, wherein the branches 117 at the same end of the conductive plate 11 are used to connect to the same battery cell 12.
As shown in fig. 3 and 4, the main difference between the embodiment of the present invention and fig. 1 and 2 is that in the embodiment of fig. 1 and 2, each battery cell 12 is provided with a fixing unit 13, wherein the number of the fixing units 13 and the number of the battery cells 12 are the same, and the fixing units 13 strengthen the connection relationship between the end portions of the conductive sheets 11 and the battery cells 12.
In the embodiment of fig. 3 and 4, a plurality of battery cells 12 share the same fixing unit 13. In the embodiment of the invention, the fixing unit 13 includes two fixing portions 131 and a pressing portion 133, wherein the two fixing portions 131 of the fixing unit 13 are respectively connected to different battery cells 12, and the pressing portion 133 crosses two ends of the conductive sheet 11. The pressing part 133 is used for contacting and covering part or all of the second surface 113 of the conductive sheet 11, and pressing the conductive sheet 11 toward the battery cell 12.
Specifically, the fixing unit 13 is disposed along the conductive sheet 11, wherein the two fixing portions 131 of the fixing unit 13 are respectively welded to two different battery cells 12, and the pressing portion 133 of the fixing unit 13 may not be welded to the second surface 113 of the conductive sheet 11. In various embodiments, the pressing portion 133 of the fixing unit 13 may also be welded to the second surface 113 of the conductive sheet 11, so as to further enhance the fixing effect of the fixing unit 13.
As shown in fig. 5 and 6, in the embodiment of the present invention, each battery cell 12 is provided with one fixing unit 13, wherein the number of the fixing units 13 is the same as that of the battery cells 12. The fixing unit 13 of the present embodiment includes two fixing portions 131 and a pressing portion 133, wherein the two fixing portions 131 of the fixing unit 13 are connected to the same battery cell 12, and the pressing portion 133 contacts and covers a portion of the second surface 113 of the conductive sheet 11, and presses the conductive sheet 11 toward the battery cell 12.
Since the fixing portions 131 at both ends of the fixing unit 13 are welded to the housing 121 of the same battery cell 12, the pressing portions 133 of the fixing unit 13 do not need to be welded to the second surface 113 of the conductive sheet 11. In various embodiments, the pressing portion 133 of the fixing unit 13 may also be welded to the second surface 113 of the conductive sheet 11, so as to further enhance the fixing effect of the fixing unit 13.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the invention, which is defined by the appended claims and all changes and modifications that are equivalent to the shape, structure, characteristics and spirit of the invention are intended to be embraced therein.
Claims (10)
1. A battery conductive frame, comprising:
the conductive sheet comprises a first surface and a second surface, wherein the first surface and the second surface are two opposite surfaces;
a plurality of first projection welding parts arranged on the first surface of the conducting plate and used for connecting a plurality of battery cells; and
the fixing unit comprises a fixing part and at least one pressing part, wherein the fixing part is used for connecting the battery cores, and the pressing part is used for pressing the conducting strip.
2. The battery conducting frame according to claim 1, wherein the press-fit portion of the fixing unit overlaps with the plurality of first projection welding portions of the conductive sheet.
3. The battery holder as claimed in claim 1, further comprising at least one second projection solder portion located on the pressing portion of the fixing unit, wherein the pressing portion of the fixing unit is connected to the second surface of the conductive sheet via the at least one second projection solder portion.
4. The battery holder as set forth in claim 3, further comprising at least one third projection welding part at the fixing part of the fixing unit, and the fixing part of the fixing unit is connected to the plurality of battery cells by the at least one third projection welding part.
5. The battery holder as claimed in claim 1, wherein the fixing unit includes two fixing portions respectively connected to the plurality of battery cells.
6. The battery conducting frame according to claim 1, wherein the fixing unit is provided in plurality and respectively connected to the plurality of battery cells.
7. The battery conducting frame as claimed in claim 6, wherein the fixing unit comprises two pressing parts, and the same battery cell is connected through the two pressing parts.
8. The battery conducting frame according to claim 1, wherein the conductive sheet includes a plurality of branches, and the plurality of first projection welding parts are provided on the plurality of branches.
9. The battery conducting frame according to claim 1, wherein the fixing unit has a conductivity smaller than that of the conductive sheet.
10. The battery conducting frame according to claim 1, wherein the thickness of the fixing unit is smaller than that of the conductive sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211073105.0A CN115312982A (en) | 2022-09-02 | 2022-09-02 | Battery conductive frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211073105.0A CN115312982A (en) | 2022-09-02 | 2022-09-02 | Battery conductive frame |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115312982A true CN115312982A (en) | 2022-11-08 |
Family
ID=83867198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211073105.0A Pending CN115312982A (en) | 2022-09-02 | 2022-09-02 | Battery conductive frame |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115312982A (en) |
-
2022
- 2022-09-02 CN CN202211073105.0A patent/CN115312982A/en active Pending
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