CN211719702U - Terminal assembly for current shunting - Google Patents
Terminal assembly for current shunting Download PDFInfo
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- CN211719702U CN211719702U CN202020317358.8U CN202020317358U CN211719702U CN 211719702 U CN211719702 U CN 211719702U CN 202020317358 U CN202020317358 U CN 202020317358U CN 211719702 U CN211719702 U CN 211719702U
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- 239000012212 insulator Substances 0.000 abstract description 7
- 238000007599 discharging Methods 0.000 abstract description 4
- 238000002955 isolation Methods 0.000 abstract description 2
- 210000005069 ears Anatomy 0.000 abstract 1
- 239000000463 material Substances 0.000 description 7
- 230000011218 segmentation Effects 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 239000007769 metal material Substances 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- 239000000919 ceramic Substances 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 230000020169 heat generation Effects 0.000 description 2
- 229910010272 inorganic material Inorganic materials 0.000 description 2
- 239000011147 inorganic material Substances 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 239000011368 organic material Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000005219 brazing Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- -1 copper-aluminum-nickel Chemical compound 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229920001973 fluoroelastomer Polymers 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 238000010137 moulding (plastic) Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Classifications
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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
- Connection Of Batteries Or Terminals (AREA)
Abstract
The utility model discloses a terminal subassembly for current splitting, including insulator and two at least terminals, a plurality of terminals set up on the insulator and by insulator mutual isolation, a plurality of terminals are connected with a plurality of utmost point ears of setting on a plurality of core packages of battery inside. The current is divided by arranging the plurality of independent terminals, and only a part of current is carried by a single terminal instead of all current, so that the requirement on the overcurrent capacity of the single terminal is lower, the size of the terminal can be set to be smaller, less internal space of the battery is occupied, and the battery has larger capacity. The structure of the multi-terminal enables the current converging point to be generated outside the battery, and the number of the lugs connected in parallel inside the battery is greatly reduced or no lugs connected in parallel are arranged, so that the temperature rise inside the battery is reduced, and the safety of the battery is improved. Because the confluence point of the current is generated outside the battery, the temperature collector can be conveniently arranged on the confluence point, and the temperature of the battery during large-current charging and discharging is effectively monitored.
Description
Technical Field
The utility model relates to a battery manufacturing technology field especially relates to a terminal subassembly for electric current reposition of redundant personnel.
Background
The general battery only has a positive terminal and a negative terminal, a plurality of utmost point ear and a plurality of connecting piece on the battery inner core package are connected, a plurality of connecting pieces are connected on the terminal with parallelly connected mode, the electric current converges to the terminal on by a plurality of connecting pieces, make the terminal bear great electric current, and parallelly connected electric current causes the calorific capacity of the department of converging when converging big, make the junction temperature rise of terminal and connecting piece very fast, the heat of production is piled up inside the battery, be difficult for the diffusion, the inside thermal runaway risk of battery has been increased, the security performance of battery has been reduced. Along with the increase of the size and the increase of the capacity of the battery, the requirements on the overcurrent capacity and the temperature rise of a battery terminal are higher and higher, and particularly, the power battery, the large-size and large-energy battery are more applied.
Generally, the method for improving the overcurrent capacity and reducing the temperature rise is to increase the sizes of the positive and negative terminals and the connecting part of the battery, that is, the length, the width and the thickness of the terminals are increased, the sectional area of the connecting part is increased, the improvement of the overcurrent capacity of the terminals and the connecting part is realized, and the temperature rise is reduced. However, the overcurrent capacity and the temperature rise are improved and reduced only by increasing the sizes of the terminals and the connecting parts, so that the utilization rate of the internal space of the battery is reduced, and the capacity of the battery is reduced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a terminal subassembly for electric current reposition of redundant personnel realizes the reposition of redundant personnel of electric current through a plurality of terminals of mutual isolation, makes the point of converging of electric current produce outside the battery, has reduced the size of terminal, has reduced occuping and effectively reducing the inside temperature rise of battery to battery inner space.
To achieve the purpose, the utility model adopts the following technical proposal:
the terminal assembly for current shunting comprises an insulating piece and at least two terminals, wherein the terminals are arranged on the insulating piece and are mutually isolated by the insulating piece, and the terminals are connected with a plurality of lugs arranged on a core package in a battery.
As an optimized scheme of the utility model, the terminal with utmost point ear one-to-one is connected.
As an optimized scheme of the utility model, a terminal subassembly for the current reposition of redundant personnel still includes a plurality of connecting pieces, and is a plurality of the equal interval of connecting piece sets up and mutual insulation, the one end of connecting piece with the terminal is connected, the other end of connecting piece with utmost point ear is connected.
As a preferred scheme of the utility model, the terminal includes main part and spliced pole, the main part sets up on the apron of battery, the spliced pole is protruding to be established in the main part and orientation the inside of battery, the locating hole has been seted up on the connecting piece, the spliced pole passes the locating hole.
As a preferred scheme of the utility model, the connecting piece is including being the first segmentation and the second segmentation that the contained angle is connected, first segmentation with the terminal is connected, the second segmentation with utmost point ear is connected, the contained angle is 0 ~ 180 degree.
As a preferred scheme of the utility model, it is a plurality of the terminal sets up side by side on the insulating part, adjacent two form first gap between the terminal and by the insulating part is filled, and is a plurality of first segmentation sets up side by side, adjacent two form the second gap between the first segmentation, first gap with second gap parallel arrangement or be the contained angle setting.
As a preferred embodiment of the present invention, the positioning hole is disposed at an end of the first segment away from the second segment, the first gap is perpendicular to the second gap, and the lengths of the first segments are different;
or the first gap and the second gap are arranged in parallel, and the lengths of the first sections are the same.
As a preferred scheme of the utility model, the core package is coiling formula or lamination formula, the quantity of core package is one at least.
As an optimized scheme of the utility model, a terminal subassembly for the current reposition of redundant personnel still includes the conducting strip, the conducting strip sets up the terminal deviates from one side of core package and with a plurality of the terminal is connected.
As a preferred scheme of the utility model, the conducting strip includes the branch contact that a plurality of intervals set up, and is a plurality of branch contact and a plurality of the terminal one-to-one is connected.
The utility model has the advantages that:
the utility model discloses a terminal subassembly for current splitting is through setting up a plurality of independent terminals with the current splitting, and single terminal only needs to bear partial current, and not whole electric current, consequently lower to the ability requirement of overflowing of single terminal, less that the size of terminal can set up occupies less battery inner space to increase the capacity of battery. The multi-terminal structure enables the current converging point to be generated outside the battery, the number of the lugs connected in parallel inside the battery is greatly reduced or no lugs connected in parallel are arranged, so that the temperature rise inside the battery is effectively reduced, and the safety of the battery is improved. In addition, because the confluence point of the current is generated outside the battery, a temperature collector can be conveniently arranged on the confluence point, and the temperature of the battery during large-current charging and discharging is effectively monitored.
Drawings
Fig. 1 is a front view of a terminal according to an embodiment of the present invention;
fig. 2 is a schematic view of the terminal of fig. 1 disposed on an insulator in accordance with an embodiment of the present invention;
fig. 3 is a top view of the conductive sheet according to the embodiment of the present invention connected to the terminal of fig. 1;
fig. 4 is a top view of a terminal assembly for current splitting according to an embodiment of the present invention disposed on a cover plate;
fig. 5 is a front view of a connector according to an embodiment of the present invention;
FIG. 6 is a top view of FIG. 5;
FIG. 7 is a side view of FIG. 5;
fig. 8 is a front view of a connector according to an embodiment of the present invention;
FIG. 9 is a top view of FIG. 8;
fig. 10 is a top view of a battery to which a terminal assembly for current splitting according to some embodiments of the present invention is applied;
FIG. 11 is an arrangement of connectors within the battery of FIG. 10;
FIG. 12 is a side view of FIG. 11;
FIG. 13 is another arrangement of the connection within the battery of FIG. 10;
fig. 14 is a top view of a battery to which terminal assemblies for current splitting according to further embodiments of the present invention are applied;
fig. 15 is a schematic cross-sectional view of a battery to which a terminal assembly for current splitting according to further embodiments of the present invention is applied;
he 16 is a side view of the cell of figure 15.
In the figure:
1. a terminal; 11. a main body; 12. connecting columns; 2. an insulating member; 3. a connecting member; 31. a first segment; 311. positioning holes; 32. a second section; 4. a conductive sheet; 41. a branch contact sheet; 5. a cover plate; 6. a housing; 100. a first slit; 200. a second slit.
Detailed Description
The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the word "over" a first feature or feature in a second feature may include the word "over" or "over" the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature "under" a second feature may include a first feature that is directly under and obliquely under the second feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.
As shown in fig. 1 and 2, the terminal assembly for current splitting of the present embodiment includes three terminals 1 and an insulator 2, the three terminals 1 are disposed on the insulator 2 and are isolated from each other by the insulator 2, and the terminals 1 are connected to tabs (not shown) on a core pack (not shown).
The terminal assembly for current splitting of the embodiment splits the current by providing three independent terminals 1, and a single terminal 1 only needs to carry part of the current instead of all the current, so that the requirement on the overcurrent capacity of the single terminal 1 is low, the size of the terminal 1 can be set to be small, and less internal space of the battery is occupied, thereby increasing the capacity of the battery. Because the plurality of terminals 1 are adopted, the current converging point is generated outside the battery, the number of the lugs connected in parallel inside the battery is greatly reduced or no lugs connected in parallel are arranged, the temperature rise inside the battery is well controlled, and the safety of the battery is improved. Because the confluence point of the current is generated outside the battery, the temperature collector can be conveniently arranged on the confluence point, and the temperature of the battery during large-current charging and discharging is effectively monitored.
In other embodiments, each terminal assembly for current splitting may include two or four or more terminals 1, and the number of the terminals 1 is determined according to the number of tabs of the battery cell core pack.
Preferably, one terminal 1 is connected to one tab, so that current does not flow in the battery, heat generation in the battery is minimized, and safety of the battery is improved.
Optionally, one terminal 1 is connected with two tabs, that is, the two tabs are connected in parallel, so that the heat generation amount in the battery is small.
As shown in fig. 5 to 15, it is preferable that the terminal assembly for current division further includes a plurality of connecting members 3, the plurality of connecting members 3 are spaced apart and insulated from each other, one end of each connecting member 3 is connected to the terminal 1, and the other end of each connecting member 3 is connected to the tab. Under normal conditions, a certain distance exists between the terminal 1 and the tab, the terminal 1 and the tab cannot be directly connected, and the tab and the terminal 1 can be effectively electrically connected by means of the connecting piece 3.
Preferably, as shown in fig. 1, the terminal 1 includes a main body 11 and a connection post 12, the main body 11 is disposed on the cover plate 5 of the battery, the connection post 12 is protruded on the main body 11 and faces the inside of the battery, as shown in fig. 5 to 9, a positioning hole 311 is formed on the connection member 3, and the connection post 12 passes through the positioning hole 311. The more and less size of a quantity of connecting piece 3, it still keeps apart each connecting piece 3 each other still to guarantee, when connecting piece 3 and terminal 1 adopted welded connected mode, need carry out comparatively accurate location to connecting piece 3 earlier, because main part 11 sets up on insulating part 2, welded position is limited, and spliced pole 12 protrusion in insulating part 2's surface, spliced pole 12 not only provides the setpoint for connecting piece 3 but also provides the welding point location, thereby make things convenient for the welding of connecting piece 3 and terminal 1.
The material of the terminal 1 and the connecting member 3 may be metal material, conductive organic material (such as conductive plastic), conductive inorganic material (such as conductive ceramic, conductive glass, carbon conductive material), and the insulating member 2 may be insulating inorganic material (ceramic, glass), insulating organic material (fluororubber, PP, PET, PI).
Specifically, the material selected by the connecting piece 3 can be a composite metal material formed by randomly combining three materials of pure copper, pure aluminum, a nickel sheet and copper-aluminum-nickel.
Preferably, the main body 11 and the connecting post 12 are manufactured by a cold heading process, and when the terminal 1 is made of a metal material, the main body 11 and the connecting post 12 have high precision by the cold heading process. The terminal 1 can also be made of non-metallic material.
Further, the connection mode of the main body 11 and the connection column 12 can be realized by riveting, laser welding, friction welding, brazing, and the like.
Preferably, when the insulating member 2 is made of plastic material, such as PP or PPs, the insulating member 2 is injection molded, and the injection molding can be performed on the terminal 1 with irregular shape to obtain the insulating member 2 with complicated shape, thereby improving the manufacturing efficiency of the insulating member 2 and reducing the manufacturing cost.
Optionally, the insulating member 2 may also be made of a non-plastic material, and may be manufactured by other machining methods, such as CNC machining, ceramic sintering, plastic molding, and the like.
As shown in fig. 6 to 7, in some embodiments, the connecting member 3 includes a first segment 31 and a second segment 32 arranged at an included angle, the positioning hole 311 is opened at an end of the first segment 31 away from the second segment 32, the first segment 31 is connected to the terminal 1, and the second segment 32 is connected to the tab. Because the distance is usually kept between the pole ear in the core bag and the terminal 1, and the pole ear setting positions and the number of different types of core bags can be different, the second section 32 can set corresponding length according to the specific position of the pole ear, and adapts to the setting position of the pole ear by forming a specific included angle with the first section 31 and is better connected with the pole ear. The included angle between the first section 31 and the second section 32 is 0-180 degrees, when the included angle is 180 degrees, the first section 31 and the second section 32 are integrated, the connecting piece 3 is flat and straight, bending does not exist, the connecting piece is suitable for the situation that the relative position of the terminal 1 and the pole lug is good, and linear connection is convenient to carry out, such as the embodiment shown in fig. 13 and 15.
As shown in fig. 1, fig. 2 and fig. 9, further, a plurality of terminals 1 are arranged side by side on the insulating member 2, a first gap 100 is formed between two adjacent terminals 1 and filled by the insulating member 2, a plurality of first segments 31 are arranged side by side, a second gap 200 is formed between two adjacent first segments 31, and the first gap 100 and the second gap 200 are arranged in parallel or at an included angle. As shown in fig. 10 and 14, the arrangement direction of the plurality of terminals 1 on the cover plate 5 may have different forms, the arrangement position of the combined tab may be one connecting member 3 may be located below only one terminal 1, and a situation may occur where one connecting member 3 is located below a plurality of terminals 1. When a connecting piece 3 is positioned below a plurality of terminals 1, the first gap 100 and the second gap 200 form an included angle, and the insulating piece 2 isolates the connecting piece 3 from the main bodies 11 of the terminals 1, so that one connecting piece 3 is only connected with the connecting column 12 of one terminal 1, and an independent current channel is realized, wherein one lug corresponds to one connecting piece 3, and one connecting piece 3 corresponds to one terminal 1.
Specifically, in some embodiments, the first slit 100 and the second slit 200 are perpendicular to each other, the connecting element 3 is disposed as shown in fig. 8 and 9, and the connecting post 12 of each terminal 1 is spaced from the second segment 32 of the connecting element 3 connected thereto, and the length of each first segment 31 is different, so that the position of the positioning hole 311 matches the position of the connecting post 12.
In other embodiments, the first slit 100 and the second slit 200 are parallel to each other, one connector 3 is located below only one terminal 1, and the lengths of the first sections 31 are equal because the connecting column 12 of each terminal 1 is equidistant from the second section 32 of the connector 3 connected thereto. The embodiment shown in fig. 13 employs this configuration.
Preferably, the core pack is a winding type or a laminated type, and the number of the core packs is at least one. According to the size of the battery shell 6, different numbers and types of core packages can be arranged, and batteries with different capacities can be obtained.
As shown in fig. 3 and 4, preferably, the terminals 1 are provided with the conductive sheets 4, the conductive sheets 4 are used for collecting the current of each terminal 1, and the conductive sheets 4 are arranged outside the battery, so that a temperature collector is conveniently arranged on the conductive sheets 4, and the maximum temperature of the battery during large-current charging and discharging is effectively monitored.
Furthermore, conducting strip 4 includes the branch contact 41 that three interval set up, and a branch contact 41 is connected with a terminal 1, can reduce conducting strip 4's whole volume and weight on the one hand, still makes the confluence point of electric current keep away from each terminal 1 on the other hand, makes the high temperature of confluence department to the influence of battery less.
The terminal assembly for current shunting of any of the above embodiments can be applied to a battery, the battery comprises at least one cover plate 5, and the terminal assembly for current shunting of any of the above embodiments is arranged on the cover plate 5, so that the internal space of the battery is less occupied while the overcurrent capacity is ensured, and the battery has larger capacity. In addition, because the biggest point that generates heat, the confluence of electric current is located the battery outside, can effectively reduce the temperature rise of battery in the charge-discharge process, and the security of battery is high. And the structure of the battery has small difference with the structure of the conventional battery, and the cost is effectively controlled without adding extra manufacturing equipment.
Further, the terminal assembly for current division includes a positive terminal assembly and a negative terminal assembly, the cover plate 5 is one, and the positive terminal assembly and the negative terminal assembly are both disposed on the cover plate 5, and the embodiments of fig. 10 and 14 are batteries employing such a structure. As shown in fig. 15 and 16, in other embodiments, there are two cover plates 5, two cover plates 5 are respectively disposed on opposite sides of the case 6, and a positive terminal assembly and a negative terminal assembly are respectively disposed on one of the cover plates 5. The battery case having any one of the above structures may be used according to the distribution of the tabs inside the battery.
As a preferred embodiment of the present invention, in the description of the present specification, reference to the description of the terms "preferred", "further" or the like means that a particular feature, structure, material, or characteristic described in connection with the example or illustration is included in at least one example or illustration of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above embodiments are only used to illustrate the detailed embodiments of the present invention, and the present invention is not limited to the above detailed embodiments, i.e. the present invention must not be implemented depending on the detailed embodiments. It should be clear to those skilled in the art that any improvement of the present invention, to the equivalent replacement of each raw material of the present invention, the addition of auxiliary components, the selection of specific modes, etc., all fall within the protection scope and disclosure scope of the present invention.
Claims (10)
1. The terminal assembly for current shunting is characterized by comprising an insulating piece and at least two terminals, wherein the terminals are arranged on the insulating piece and are mutually isolated by the insulating piece, and the terminals are connected with a plurality of lugs arranged on a core package in a battery.
2. The terminal assembly for current splitting according to claim 1, wherein said terminals are connected in a one-to-one correspondence with said tabs.
3. The terminal assembly for current splitting according to claim 1, further comprising a plurality of connecting members, each of said connecting members being spaced apart and insulated from each other, one end of said connecting member being connected to said terminal, and the other end of said connecting member being connected to said tab.
4. The terminal assembly for current splitting according to claim 3, wherein the terminal comprises a main body and a connecting post, the main body is disposed on a cover plate of the battery, the connecting post is protruded on the main body and faces the inside of the battery, a positioning hole is formed on the connecting member, and the connecting post passes through the positioning hole.
5. The terminal assembly for current splitting according to claim 4, wherein said connecting member comprises a first segment and a second segment connected at an included angle, said first segment is connected to said terminal, said second segment is connected to said tab, and said included angle is 0 to 180 degrees.
6. The terminal assembly for current splitting according to claim 5, wherein a plurality of said terminals are arranged side by side on said insulating member, a first gap is formed between two adjacent said terminals and filled by said insulating member, a plurality of said first segments are arranged side by side, a second gap is formed between two adjacent said first segments, and said first gaps and said second gaps are arranged in parallel or at an included angle.
7. The terminal assembly for current splitting according to claim 6, wherein the positioning hole is opened at an end of the first segment away from the second segment, the first gap is perpendicular to the second gap, and the lengths of the first segments are different;
or the first gap and the second gap are arranged in parallel, and the lengths of the first sections are the same.
8. Terminal assembly for current splitting according to claim 1, wherein the core pack is of a wound or laminated type, the number of core packs being at least one.
9. The terminal assembly for current splitting according to claim 1, further comprising a conductive strip disposed on a side of the terminal facing away from the core package and connected to a plurality of the terminals.
10. The terminal assembly for current splitting as defined in claim 9, wherein said conductive strip includes a plurality of spaced apart branch contacts, a plurality of said branch contacts being connected in a one-to-one correspondence with a plurality of said terminals.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN202020317358.8U CN211719702U (en) | 2020-03-13 | 2020-03-13 | Terminal assembly for current shunting |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN202020317358.8U CN211719702U (en) | 2020-03-13 | 2020-03-13 | Terminal assembly for current shunting |
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CN211719702U true CN211719702U (en) | 2020-10-20 |
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CN202020317358.8U Active CN211719702U (en) | 2020-03-13 | 2020-03-13 | Terminal assembly for current shunting |
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