CN210052783U - Homonymy collection flow structure, battery module and electric motor car - Google Patents
Homonymy collection flow structure, battery module and electric motor car Download PDFInfo
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- CN210052783U CN210052783U CN201921294821.5U CN201921294821U CN210052783U CN 210052783 U CN210052783 U CN 210052783U CN 201921294821 U CN201921294821 U CN 201921294821U CN 210052783 U CN210052783 U CN 210052783U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The utility model provides a same-side confluence structure, a battery module and an electric vehicle, wherein the same-side confluence structure comprises a fixing plate and a confluence plate; the fixing plate is provided with a plurality of first fixing through holes and a plurality of second fixing through holes; the bus bar is arranged on one side of the fixing plate, and a plurality of bus through holes corresponding to the second fixing through holes are formed in the bus bar; one side of the bus bar, which is far away from the fixing plate, is also provided with a pole piece, and a positive pole lug is arranged at the position of the pole piece, which corresponds to the first fixing through hole. When welding, the positive pole of single cell, negative pole sheetmetal are fixed on the fixed plate through first fixed through-hole and second fixed through-hole respectively, and the positive pole utmost point ear that sets up on the positive pole of single cell and the cylinder manifold is connected, and the negative pole of single cell passes through the negative pole sheetmetal and is connected with the cylinder manifold to realize that positive pole, the negative pole of single cell all weld on this homonymy structure of converging. In welding process, need not to make a round trip to overturn battery module, improve welding efficiency through simplifying the welding procedure.
Description
Technical Field
The utility model relates to a power battery field particularly, relates to a homonymy structure, battery module and electric motor car of converging.
Background
At present, a plurality of single batteries and a bus bar are connected in a welding mode in general assembly of a power battery module. However, since the positive electrode and the negative electrode of the single battery (for example, the cylindrical battery) are respectively located at two ends of the single battery, when welding the single battery to the bus bar, it is necessary to weld one end of the positive electrode or the negative electrode of the single battery to the bus bar, and then turn over the whole power battery module to weld the other end of the single battery.
With the development of industrial technologies, in order to provide longer endurance for the power battery, the volume and weight of the power battery module may be gradually increased, and the welding mode that requires to turn over the power battery module back and forth is time-consuming and labor-consuming, and affects the welding efficiency. Meanwhile, the bus plates are required to be arranged on the anode and the cathode of the single battery in the welding mode, and the material cost is improved to a certain extent.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model aims to provide a homonymy structure, battery module and electric motor car of converging.
The utility model provides a technical scheme:
in a first aspect, an embodiment of the present invention provides a same-side bus structure, where the same-side bus structure includes a fixing plate and a bus board;
the fixing plate is provided with a plurality of first fixing through holes for fixing the anodes of the single batteries and a plurality of second fixing through holes for fixing the cathode metal sheets of the single batteries;
the bus bar is arranged on one side of the fixing plate, and a plurality of bus through holes corresponding to the second fixing through holes are formed in the bus bar;
one side of the bus bar, which is far away from the fixing plate, is also provided with a pole piece, and a positive pole lug is arranged at the position, corresponding to the first fixing through hole, of the pole piece.
In an alternative embodiment, the bus plates include a first bus plate, a second bus plate, and a third bus plate;
the first bus plate comprises a first connecting piece and first bus bars, and the first bus bars are arranged on the same side of the first connecting piece at intervals;
the second bus plate comprises a second connecting piece and second bus bars, and the second bus bars are arranged on the same side of the second connecting piece at intervals;
the third bus bar plate comprises a third connecting piece and third bus bars, the third bus bars are symmetrically arranged on two sides of the third connecting piece, and the bus bars on the same side of the third connecting piece are arranged at intervals;
the bus through holes are arranged on the first bus bar, the second bus bar and the third bus bar at intervals;
the first bus plate and the second bus plate are arranged at two ends of the fixing plate, and the first bus bar and the second bus bar are oppositely arranged.
In an optional embodiment, the third connecting member is disposed between the first bus bar and the second bus bar, and the third bus bar is disposed in a staggered manner with respect to the first bus bar and the second bus bar, so that the first fixing through holes are located between the first bus bar, the second bus bar and the third bus bar, and the bus through holes disposed on the first bus bar, the second bus bar and the third bus bar are overlapped with the second fixing through holes of the fixing plate.
In an alternative embodiment, the pole piece includes a first pole piece and a second pole piece;
the first pole piece cover is closed on one side, far away from the fixing plate, of the first bus plate, the second pole piece cover is closed on one side, far away from the fixing plate, of the second bus plate, the shape of the first pole piece is the same as that of the first bus plate, and the shape of the second pole piece is the same as that of the second bus plate.
In an alternative embodiment, the first pole piece includes a first pole ear arm corresponding to the first bus bar, and the second pole piece includes a second pole ear arm corresponding to the second bus bar;
and the first pole lug arm and the second pole lug arm are respectively provided with a positive pole lug, wherein the positive pole lug arranged on the second pole lug is positioned on the second pole lug arm and close to one side of the third bus plate.
In an optional embodiment, the first bus plate and the second bus plate are "E" shaped, and the third bus plate is "feng" shaped.
In a second aspect, an embodiment of the present invention provides a battery module, where the battery module includes a plurality of single batteries and the same-side bus structure in any one of the foregoing embodiments;
the single battery comprises a positive electrode, a negative electrode and a negative electrode metal sheet, wherein one end of the negative electrode metal sheet is connected with the negative electrode, and the other end of the negative electrode metal sheet is arranged on one side of the positive electrode of the single battery;
the positive electrode of the single battery is fixedly arranged in the first fixing through hole of the fixing plate, and the negative metal sheet is fixedly arranged in the second fixing through hole of the fixing plate;
the positive pole lug is electrically connected with the positive pole of the single battery, and the negative pole metal sheet is electrically connected with the bus board after passing through the second fixing through hole.
In an alternative embodiment, the positive electrode of the single battery is connected with the positive electrode tab by laser welding or resistance welding.
In an alternative embodiment, the negative electrode metal sheet of the battery is connected to the bus bar by laser welding or resistance welding.
In a third aspect, an embodiment of the present invention provides an electric vehicle, the electric vehicle includes an engine and any one of the foregoing embodiments of the battery module, the battery module is electrically connected to the engine, and the engine provides electric energy.
The utility model has the advantages that:
the utility model provides a same-side confluence structure, a battery module and an electric vehicle, wherein the same-side confluence structure comprises a fixing plate and a confluence plate; the fixing plate is provided with a plurality of first fixing through holes for fixing the anodes of the single batteries and a plurality of second fixing through holes for fixing the cathode metal sheets of the single batteries; the bus bar is arranged on one side of the fixing plate, and a plurality of bus through holes corresponding to the second fixing through holes are formed in the bus bar; one side of the bus bar, which is far away from the fixing plate, is also provided with a pole piece, and a positive pole lug is arranged at the position of the pole piece, which corresponds to the first fixing through hole. The positive pole of the single battery and the negative pole metal sheet are respectively fixed on the fixing plate through the first fixing through holes and the second fixing through holes, the positive pole lug of the positive pole of the single battery and the positive pole lug of the bus bar are connected, the negative pole of the single battery is connected with the bus bar through the negative pole metal sheet, and therefore the positive pole and the negative pole of the single battery are all welded on the bus bar structure on the same side. In welding process, need not to make a round trip to overturn battery module, improve welding efficiency through simplifying the welding procedure.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural diagram of a single battery provided in an embodiment of the present invention;
fig. 2 is a schematic structural view of a same-side bus structure provided in an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a fixing plate according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a bus bar according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a pole piece according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a battery module according to an embodiment of the present invention.
Icon: 1-a battery module; 10-same side confluence structure; 20-a single cell; 11-a fixed plate; 12-a bus bar; 13-pole piece; 111-a first fixing through hole; 112-a second fixing through hole; 121-a bus via; 122-a first bus plate; 123-a second bus bar; 124-a third bus plate; 1221-a first connector; 1222-a first bus; 1231-a second connector; 1232-second bus; 1241-third connector; 1242-third busbar; 131-a first pole piece; 132-a second pole piece; 1311-first polar ear arm; 1321-second polar ear arm; 133-positive tab; 21-positive electrode; 22-negative electrode; 23-negative pole metal sheet.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, or orientations or positional relationships that are conventionally placed when the products of the present invention are used, or orientations or positional relationships that are conventionally understood by those skilled in the art, and are merely for convenience of description of the present invention and for simplicity of description, and do not indicate or imply that the equipment or components that are referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a single battery 20 according to an embodiment of the present invention. The single battery 20 comprises a positive electrode 21, a negative electrode 22 and a negative electrode metal sheet 23, wherein one end of the negative electrode metal sheet 23 is connected with the negative electrode 22, and the other end is arranged on one side of the positive electrode 21 of the single battery 20, so that the negative electrode 22 of the single battery 20 is arranged on the same side with the positive electrode 21 of the single battery 20 through the negative electrode metal sheet 23, and the welding operation of the single battery 20 and the bus board is facilitated.
Referring to fig. 2, fig. 2 is a schematic structural diagram of a same-side bus structure 10 according to an embodiment of the present invention. The same-side bus structure 10 includes a fixing plate 11 and a bus plate 12.
Referring to fig. 3, fig. 3 is a schematic structural diagram of a fixing plate 11 according to an embodiment of the present invention. The fixing plate 11 is provided with a plurality of first fixing through-holes 111 for fixing the positive electrodes 21 of the unit batteries 20, and a plurality of second fixing through-holes 112 for fixing the negative electrode metal sheets 23 of the unit batteries 20. The second fixing through holes 112 are symmetrically disposed at both ends of each of the first fixing through holes 111, respectively.
With continued reference to fig. 2, the bus bar 12 is disposed at one side of the fixing plate 11, and a plurality of bus through holes 121 corresponding to the positions of the second fixing through holes 112 are disposed on the bus bar 12, so that the negative electrode metal sheets 23 of the unit batteries 20 can pass through the second fixing through holes 112 and the bus through holes 121 at the same time.
The side of the bus bar 12, which is far away from the fixing plate 11, is further provided with a pole piece 13, a position of the pole piece 13, which corresponds to the first fixing through hole 111, is provided with a positive pole tab 133, the positive pole tab 133 is used for electrically connecting with a positive pole 21 of the single battery 20 to realize positive pole bus, and a negative pole metal sheet 23 of the single battery 20 passes through the bus through hole 121 and then is electrically connected with the bus bar 12 to realize negative pole bus.
The same-side bus structure 10 can weld the anodes 21 and the cathodes 22 of the single batteries 20 on the bus board 12 on the same side, so that the battery module does not need to be turned over during welding, a large amount of welding time is shortened, and the welding efficiency is improved. Meanwhile, since the same-side bus structure 10 is only arranged on one side of the single battery 20, and the bus structures are required to be arranged on both sides in a bilateral welding manner, compared with bilateral welding, the bus plate manufacturing method saves materials to a certain extent, and reduces manufacturing cost of the battery module.
Referring to fig. 4, fig. 4 is a schematic structural diagram of a bus board 12 according to an embodiment of the present invention. Bus bar 12 includes a first bus bar 122, a second bus bar 123, and a third bus bar 124, where first bus bar 122 and second bus bar 123 are identical in shape.
Referring to fig. 1 to 4, the first bus plate 122 and the second bus plate 123 are disposed at two opposite ends of the fixing plate 11, and the first bus bar 1222 and the second bus bar 1232 are disposed opposite to each other, wherein the bus through holes 121 of the first bus bar 1222 and the second bus bar 1232 are disposed corresponding to a portion of the second fixing through holes 112 of the fixing plate 11, so that the negative electrode metal piece 23 can simultaneously pass through the bus through holes 121 and the second fixing through holes 112.
With continued reference to fig. 1-4, the third connecting member 1241 of the third bus plate 124 is disposed between the first bus 1222 and the second bus 1232, and the third bus 1242 of the third bus plate 124 is disposed alternately with the first bus 1222 and the second bus 1232, such that the first fixing through hole 111 is located between the first bus 1222, the second bus 1232, and the third bus 1242, and the bus through hole 121 on the third bus 1242 corresponds to the remaining second fixing through hole 112 on the fixing plate 11 that does not correspond to the bus through holes 121 on the first bus 1222 and the second bus 1232.
Referring to fig. 5, fig. 5 is a schematic structural diagram of a pole piece 13 according to an embodiment of the present invention. The pole piece 13 includes a first pole piece 131 and a second pole piece 132, and the shape of the first pole piece 131 is the same as the shape of the first bus plate 122, and the shape of the second pole piece 132 is the same as the shape of the second bus plate 123.
In the present embodiment, the first pole piece 131 covers the first bus bar 122 on the side away from the fixing plate 11, and the second pole piece 132 covers the second bus bar 123 on the side away from the fixing plate 11.
Specifically, in the present embodiment, the first pole piece 131 includes a first tab arm 1311, wherein the first tab arm 1311 is disposed on the first pole piece 131 at an interval and corresponding to the first bus bar 1222; the second pole piece 132 includes a second pole ear arm 1321, wherein the second pole ear arm 1321 is disposed on the second pole piece 132 at an interval and is disposed corresponding to the second bus bar 1232.
The first tab arm 1311 and the second tab arm 1321 are each provided with a positive tab 133, and the positive tab 133 is used for electrically connecting with the positive electrode 21 of the unit battery 20. The positive electrode tabs 133 disposed on the second pole piece 132 are located on one side of the second electrode tab arm 1321 close to the third bus plate 124, and the positive electrode tabs 133 correspond to the first fixing through holes 111 of the fixing plate 11 one by one.
Optionally, in this embodiment, the connection portion between the positive electrode tab 133 and the first and second pole pieces 131 and 132 is made of a fusible material, and the fusible material is fused when the single battery 20 is short-circuited and overcurrent, so as to disconnect the single battery 20 from the positive electrode tab 133, prevent the single battery 20 from being damaged or spontaneously ignited due to a long-time short-circuit current, and ensure the safety of a user.
Optionally, in this embodiment, the first bus plate 122 and the second bus plate 123 are "E" shaped, and the third bus plate 124 is "rich" shaped. Of course, in other embodiments of this embodiment, first bus plate 122, second bus plate 123, and third bus plate 124 may be implemented in other shapes, and the shapes of first bus plate 122, second bus plate 123, and third bus plate 124 are not limited herein.
With reference to fig. 6, the positive electrodes 21 of the single batteries 20 are connected to the first pole piece 131 or the second pole piece 132, and the negative electrodes 22 of the single batteries 20 are electrically connected to the bus board 12 through the second fixing through holes 112. The negative electrodes 22 of some of the single batteries 20 are electrically connected to the side of the second bus bar 1232 of the second bus bar 123 close to the first bus bar 122, and the negative electrodes 22 of another part of the single batteries 20 are electrically connected to the third bus bar 1242, so as to partition the multiple single batteries 20 in series and parallel, thereby forming the battery module 1.
With reference to fig. 6, the embodiment of the present invention further provides a battery module 1, where the battery module 1 includes a plurality of single batteries 20 and a same-side bus structure 10. The unit cell 20 includes a positive electrode 21, a negative electrode 22, and a negative electrode metal piece 23. One end of the negative electrode metal piece 23 is connected to the negative electrode 22, and the other end is disposed on the positive electrode 21 side of the unit cell 20, so that the negative electrode 22 and the positive electrode 21 of the unit cell 20 are disposed on the same side.
In the present embodiment, the positive electrodes 21 of the unit batteries 20 are fixedly disposed in the first fixing through-holes 111 of the fixing plate 11, and the negative electrode metal sheets 23 are fixedly disposed in the second fixing through-holes 112 of the fixing plate 11.
The positive electrode tab 133 is electrically connected to the positive electrode 21 of the unit cell 20, and the negative electrode metal piece 23 is electrically connected to the bus bar 12 after passing through the second fixing through hole 112. Specifically, the negative electrode metal sheet 23 passes through the second fixing through hole 112 and then is electrically connected to the second bus bar 1232 and the third bus bar 1242, respectively.
Through the structure, the single batteries 20 can be fixed on the same side of the same-side bus structure 10, and the bus plates 12 on the same-side bus structure 10 are used for carrying out serial-parallel connection partitioning on the single batteries 20 to form the battery module 1.
In the structure, only the single battery 20 is required to be welded at the same side, the single battery 20 is not required to be turned over, the welding steps are simplified, the welding time is saved, and the welding efficiency is improved. Meanwhile, as the same-side bus structure 10 is arranged on only one side of the single battery 20, compared with the prior art in which bus structures are arranged at two ends of the battery, the material is saved to a certain extent, and the production cost is reduced.
In the present embodiment, the positive electrode 21 of the unit cell 20 and the positive electrode tab 133 are electrically connected by laser welding or resistance welding.
Laser welding is a high-efficiency precision welding method using a laser beam with high energy density as a heat source, the welding process belongs to a heat conduction type, namely, the surface of a workpiece is heated by laser radiation, the surface heat is diffused inwards through heat conduction, and the workpiece is melted to form a specific molten pool by controlling parameters such as the width, the energy, the peak power, the repetition frequency and the like of laser pulses. Due to the unique advantages, the welding method is successfully applied to the precise welding of micro and small parts.
Resistance welding is a method in which workpieces are assembled and then pressure is applied by an electrode, and welding is performed by resistance heat generated by passing current through a contact surface and an adjacent region of a joint. Resistance welding uses the effect of electrical resistance heating produced by current flowing through the contact surfaces and adjacent areas of the workpieces to heat them to a molten or plastic state to form a metallic bond. The resistance welding mainly comprises spot welding, seam welding, projection welding and butt welding.
Alternatively, in the present embodiment, the negative electrode metal piece 23 of the unit battery 20 and the bus bar 12 are connected by laser welding or resistance welding.
The embodiment of the utility model provides an electric motor car is still provided, and this electric motor car includes engine and battery module 1. The battery module 1 is electrically connected with the engine and provides electric energy for the engine to operate so as to drive the electric vehicle to move.
In summary, the utility model provides a homonymy confluence structure, a battery module and an electric vehicle, wherein the homonymy confluence structure comprises a fixing plate and a confluence plate; the fixing plate is provided with a plurality of first fixing through holes for fixing the anodes of the single batteries and a plurality of second fixing through holes for fixing the cathode metal sheets of the single batteries; the bus bar is arranged on one side of the fixing plate, and a plurality of bus through holes corresponding to the second fixing through holes are formed in the bus bar; one side of the bus bar, which is far away from the fixing plate, is also provided with a pole piece, and a positive pole lug is arranged at the position of the pole piece, which corresponds to the first fixing through hole. The positive pole of the single battery and the negative pole metal sheet are respectively fixed on the fixing plate through the first fixing through holes and the second fixing through holes, the positive pole lug of the positive pole of the single battery and the positive pole lug of the bus bar are connected, the negative pole of the single battery is connected with the bus bar through the negative pole metal sheet, and therefore the positive pole and the negative pole of the single battery are all welded on the bus bar structure on the same side. In the welding process, the battery module is not required to be overturned back and forth, so that the welding difficulty is reduced, and the welding efficiency is also improved.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The same-side confluence structure is characterized by comprising a fixing plate and a confluence plate;
the fixing plate is provided with a plurality of first fixing through holes for fixing the anodes of the single batteries and a plurality of second fixing through holes for fixing the cathode metal sheets of the single batteries;
the bus bar is arranged on one side of the fixing plate, and a plurality of bus through holes corresponding to the second fixing through holes are formed in the bus bar;
one side of the bus bar, which is far away from the fixing plate, is also provided with a pole piece, and a positive pole lug is arranged at the position, corresponding to the first fixing through hole, of the pole piece.
2. The same-side bus structure as in claim 1, wherein the bus plates include a first bus plate, a second bus plate, and a third bus plate;
the first bus plate comprises a first connecting piece and first bus bars, and the first bus bars are arranged on the same side of the first connecting piece at intervals;
the second bus plate comprises a second connecting piece and second bus bars, and the second bus bars are arranged on the same side of the second connecting piece at intervals;
the third bus plates comprise third connecting pieces and third bus bars, the third bus bars are symmetrically arranged on two sides of the third connecting pieces, and the third bus bars positioned on the same side of the third connecting pieces are arranged at intervals;
the bus through holes are arranged on the first bus bar, the second bus bar and the third bus bar at intervals;
the first bus plate and the second bus plate are arranged at two ends of the fixing plate, and the first bus bar and the second bus bar are oppositely arranged.
3. The same-side bus structure as in claim 2, wherein the third connecting member is disposed between the first bus bar and the second bus bar, and the third bus bar is disposed alternately with the first bus bar and the second bus bar, so that the first fixing through holes are disposed between the first bus bar, the second bus bar, and the third bus bar, and the bus through holes disposed on the first bus bar, the second bus bar, and the third bus bar are overlapped with the second fixing through holes of the fixing plate.
4. The same-side bus structure as in claim 3, wherein the pole pieces comprise a first pole piece and a second pole piece;
the first pole piece cover is closed on one side, far away from the fixing plate, of the first bus plate, the second pole piece cover is closed on one side, far away from the fixing plate, of the second bus plate, the shape of the first pole piece is the same as that of the first bus plate, and the shape of the second pole piece is the same as that of the second bus plate.
5. The same-side bus structure as in claim 4, wherein the first pole piece comprises a first pole lug arm corresponding to the first bus bar, and the second pole piece comprises a second pole lug arm corresponding to the second bus bar;
and the first pole lug arm and the second pole lug arm are respectively provided with a positive pole lug, wherein the positive pole lug arranged on the second pole lug is positioned on the second pole lug arm and close to one side of the third bus plate.
6. The same-side bus bar structure as in any one of claims 2 to 5, wherein the first bus bar and the second bus bar are E-shaped, and the third bus bar is E-shaped.
7. A battery module, characterized in that the battery module comprises a plurality of single batteries and the same-side bus structure as any one of claims 1-6;
the single battery comprises a positive electrode, a negative electrode and a negative electrode metal sheet, wherein one end of the negative electrode metal sheet is connected with the negative electrode, and the other end of the negative electrode metal sheet is arranged on one side of the positive electrode of the single battery;
the positive electrode of the single battery is fixedly arranged in the first fixing through hole of the fixing plate, and the negative metal sheet is fixedly arranged in the second fixing through hole of the fixing plate;
the positive pole lug is electrically connected with the positive pole of the single battery, and the negative pole metal sheet is electrically connected with the bus board after passing through the second fixing through hole.
8. The battery module according to claim 7, wherein the positive electrodes of the unit cells are connected to the positive electrode tabs by laser welding or resistance welding.
9. The battery module according to claim 7, wherein the negative electrode metal sheet of the unit cell and the bus bar are connected by laser welding or resistance welding.
10. An electric vehicle, characterized in that the electric vehicle comprises an engine and the battery module of any one of claims 7-9, wherein the battery module is electrically connected with the engine and provides electric energy for the engine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921294821.5U CN210052783U (en) | 2019-08-09 | 2019-08-09 | Homonymy collection flow structure, battery module and electric motor car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921294821.5U CN210052783U (en) | 2019-08-09 | 2019-08-09 | Homonymy collection flow structure, battery module and electric motor car |
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| Publication Number | Publication Date |
|---|---|
| CN210052783U true CN210052783U (en) | 2020-02-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921294821.5U Active CN210052783U (en) | 2019-08-09 | 2019-08-09 | Homonymy collection flow structure, battery module and electric motor car |
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| CN (1) | CN210052783U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114122599A (en) * | 2021-11-13 | 2022-03-01 | 安徽江淮汽车集团股份有限公司 | Battery module |
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2019
- 2019-08-09 CN CN201921294821.5U patent/CN210052783U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114122599A (en) * | 2021-11-13 | 2022-03-01 | 安徽江淮汽车集团股份有限公司 | Battery module |
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