CN214477806U - Unilateral voltage temperature sensing acquisition assembly - Google Patents
Unilateral voltage temperature sensing acquisition assembly Download PDFInfo
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- CN214477806U CN214477806U CN202122142940.2U CN202122142940U CN214477806U CN 214477806 U CN214477806 U CN 214477806U CN 202122142940 U CN202122142940 U CN 202122142940U CN 214477806 U CN214477806 U CN 214477806U
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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 application relates to the technical field of power battery packs, in particular to a unilateral voltage temperature sensing acquisition assembly which is applied to a module, wherein the module comprises a plurality of battery cores, one side part of each battery core is provided with a positive output pole and a first acquisition column, the other opposite side part of each battery core is provided with a negative output pole and a second acquisition column, and the first acquisition column is electrically connected with the second acquisition column; the single-side voltage temperature sensing acquisition assembly comprises a first acquisition wire harness and a second acquisition wire harness, one end of the first acquisition wire harness is welded with the temperature sensor, the other end of the first acquisition wire harness is welded on the first acquisition pole, and two ends of the first acquisition wire harness are fixed by using structural adhesive; one end of the second collecting wire harness is welded on the busbar, the other end of the second collecting wire harness is welded on the second collecting pole, and the two ends of the second collecting wire harness are fixed through structural adhesive. The process is simple, the operation is convenient, nickel sheets are omitted, welding spots are reduced, the production difficulty and the production cost are reduced, the space of the side part of the module is mainly utilized, and the space utilization rate is improved.
Description
Technical Field
The application relates to the technical field of power battery packs, in particular to a unilateral voltage temperature sensing acquisition assembly.
Background
At present, voltage acquisition of a module battery cell is acquired by welding a Flexible Printed Circuit (FPC) and a nickel sheet on a busbar of the battery cell, and the scheme has the disadvantages of complex processing technology, repeated welding and high nickel sheet cost.
SUMMERY OF THE UTILITY MODEL
An object of this application is to provide a unilateral voltage temperature sensing gathers subassembly, and the voltage acquisition who has solved the module electricity core that exists among the prior art to a certain extent all gathers on the busbar of electric core through flexible printed circuit FPC adds the nickel piece welding, and this kind of scheme processing technology is complicated, welds many times, and the technical problem of nickel piece with high costs.
The application provides a unilateral voltage temperature sensing acquisition assembly which is applied to a module, wherein the module comprises a plurality of battery cells, one side part of each battery cell is provided with a positive output pole column and a first acquisition column, the other opposite side part of each battery cell is provided with a negative output pole column and a second acquisition column, and the first acquisition column is electrically connected with the second acquisition column;
the multiple battery cells are sequentially arranged in parallel, and positive output poles and negative output poles of any two adjacent battery cells are reversely arranged; the positive output pole and the negative output pole which are positioned on the same side of any two adjacent battery cores are connected through a busbar so as to form a serial battery core assembly which is electrically connected end to end in sequence; the single-side voltage temperature sensing acquisition assembly comprises a first acquisition wiring harness and a second acquisition wiring harness; at least the first collecting column, the middle first collecting column and the tail first collecting column of the electric core assembly, which are positioned on the first side part, are provided with the first collecting harnesses, one end of each first collecting harness is connected with the first collecting column, the other opposite end of each first collecting harness is connected with a temperature detection member, and the temperature detection member is connected with the electric core on which the first collecting column is formed;
second collecting columns of the battery cell assembly, which are positioned on the first side portions, are all provided with second collecting harnesses in a matching mode, one ends of the second collecting harnesses are connected with the second collecting columns, and the other opposite ends of the second collecting harnesses are connected with the busbar of the battery cells, on which the second collecting columns are formed;
the electric core assembly is provided with a first collecting wire harness and a second collecting wire harness, wherein the first collecting wire harness and the second collecting wire harness are used for being connected with a battery management system, and the second collecting wire harness is opposite to the first side of the second collecting wire harness.
In any of the above technical solutions, further, the first collecting harness is connected to the first collecting column by welding;
and a welding point formed between the first collecting wire harness and the first collecting column is covered with structural adhesive.
In any of the above technical solutions, further, the second collecting harness is connected to the second collecting column and the busbar by welding;
and structural glue covers the welding points formed between the second collecting wire harness and the second collecting column and between the second collecting wire harness and the busbar respectively.
In any one of the above technical solutions, further, the temperature detection member is connected to a bus bar of the battery cell on which the first collecting column is formed.
In any one of the above technical solutions, further, the temperature detection member is connected to the bus bar by a structural adhesive, and the structural adhesive covers the temperature detection member.
In any of the above technical solutions, further, the cross section of the first collecting harness is circular, and the area of the cross section is 0.35mm2-2mm2；
The second collection harnessIs circular and the area of the cross section is 0.35mm2-2mm2。
In any of the above technical solutions, further, the temperature detecting member is a temperature sensor; and/or
The first acquisition wiring harness and the second acquisition wiring harness are signal transmission lines.
In any of the above technical solutions, further, one end of the first collecting harness at the second side portion of the electric core assembly is connected to the battery management system, and the other end of the first collecting harness is connected to the temperature detecting member, and the temperature detecting member is connected to the corresponding electric core;
one end of a second collecting wire harness of the second side portion of the electric core assembly is connected with the battery management system, and the other end of the second collecting wire harness is connected with the corresponding bus bar.
In any of the above technical solutions, further, at least the first collecting column, the middle first collecting column, and the last first collecting column of the electric core assembly located at the second side portion are provided with the first collecting harness;
the second collection post of the electric core assembly that is located the second lateral part all sets the second collection pencil.
Compared with the prior art, the beneficial effect of this application is:
in the single-side voltage temperature-sensing acquisition assembly provided by the application, the positive output pole and the negative output pole of the adjacent two battery cores, which are positioned at the first side part, are connected through the busbar, namely the positive output pole and the negative output pole belong to the equipotential, the voltages of the two electrodes can be obtained only by acquiring the voltages on the busbar, on the basis of the voltage values, only one end of a second acquisition wire harness is needed to be connected to the second acquisition pole, the other end of the second acquisition wire harness is connected to the busbar, so that the voltage values can be acquired, according to the operation, the voltage values of all the battery cores, which are positioned at the first side part, can be acquired, and according to the operation, the voltage values of all the battery cores, which are positioned at the second side part, can be transmitted to the acquisition pole of the first side part, finally, only the low-voltage connector of the battery management system needs to be connected to the total output end of the first side portion.
In addition, except can gathering the voltage, still can gather the temperature of module, specifically utilize first collection pencil, make its one end connect the second and gather the post, its other end connects the temperature and detects the component to detect the component with the temperature and fix on the busbar, can detect the temperature, utilize in this application above-mentioned structure can gather the module at least three temperature can, head end, tail end and middle part position department, can show the temperature condition of module.
It is thus clear that this application provides a brand-new unilateral voltage temperature sensing collection subassembly, has replaced FPC, FFC + nickel piece welding to busbar and utmost point post on, has saved the nickel piece, and processing technology is simple, and convenient operation has saved the nickel piece, has reduced the solder joint, helps reducing the production degree of difficulty and cost, mainly utilizes the module side wall face moreover, improves space utilization.
Drawings
In order to more clearly illustrate the detailed description of the present application or the technical solutions in the prior art, the drawings needed to be used in the detailed description of the present application or the prior art description will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic structural diagram of a single-side voltage temperature sensing acquisition assembly according to an embodiment of the present disclosure;
FIG. 2 is an enlarged schematic view of FIG. 1 at A;
fig. 3 is a schematic structural diagram of a battery cell provided in an embodiment of the present application;
fig. 4 is a schematic structural diagram of another side of a battery cell provided in an embodiment of the present application.
Reference numerals:
1-battery core, 11-positive output pole, 12-first collection column, 13-negative output pole, 14-second collection column, 2-busbar, 3-first collection beam, 4-second collection beam and 5-structural adhesive.
Detailed Description
The technical solutions of the present application will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are only some embodiments of the present application, but not all embodiments.
The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application.
All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In the description of the present application, it should be noted 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, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "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 application can be understood in a specific case by those of ordinary skill in the art.
A single-sided voltage temperature sensing acquisition assembly according to some embodiments of the present application is described below with reference to fig. 1-4.
Referring to fig. 1 to 4, an embodiment of the present application provides a single-side voltage temperature sensing acquisition assembly, which is applied to a module, where the module includes a plurality of battery cells 1, one side of each battery cell 1 is provided with a positive output terminal 11 and a first acquisition column 12, the other opposite side of each battery cell 1 is provided with a negative output terminal 13 and a second acquisition column 14, and the first acquisition column 12 is electrically connected to the second acquisition column 14;
the plurality of battery cells 1 are sequentially arranged in parallel, and the positive output pole 11 and the negative output pole 13 of any two adjacent battery cells 1 are reversely arranged; the positive output pole post 11 and the negative output pole post 13 of any two adjacent battery cells 1 on the same side are connected via the bus bar 2 to form a serial battery cell assembly electrically connected end to end in sequence, and the battery cell assembly is formed with a first side portion and a second side portion opposite to the first side portion, for ease of understanding, the following are exemplified: four cells 1 are illustrated: an electric core, No. two electric cores, No. three electric cores and No. four electric cores parallel arrangement in order, wherein, the positive output utmost point post 11 of the first side of an electric core and the negative output utmost point post 13 of the first side of No. two electric cores are connected through a busbar electricity, the positive output utmost point post 11 of the second side of No. two electric cores and the negative output utmost point post 13 of the second side of No. three electric cores are connected through No. two busbar electricity, the positive output utmost point post 11 of the first side of No. three electric cores and the negative output utmost point post 13 of the first side of No. four electric cores 1 are connected through No. three busbar electricity, wherein, second side and first side are the both sides relative to each other, the electric core subassembly of establishing ties has been formed, of course, the connected mode of a plurality of electric cores 1 still can set up according to actual need, and notice, two adjacent electric cores 1 are for example, the positive output utmost point post 11 and the negative output utmost point post 13 of an electric core are arranged in reverse.
The single-side voltage temperature sensing acquisition assembly comprises a first acquisition wiring harness 3 and a second acquisition wiring harness 4, and specifically, the first acquisition wiring harness 3 and the second acquisition wiring harness 4 are both signal transmission lines and can transmit signals;
wherein, the electric core subassembly lie in first lateral part first at least gather post 12, the first post 12 and the first post 12 of gathering of tail in the middle of first gathering the first at least and all be connected with first collection pencil 3 (notice, not only be limited to and form three temperature acquisition point at first lateral part, still can set up a plurality of acquisition points, but the whole temperature of general electric core 1 differs by a little, the temperature of above-mentioned three positions is gathered at first lateral part generally can satisfy the requirement), and the one end of the first collection pencil 3 of the first lateral part of electric core subassembly is connected with first collection post 12, the relative other end of first collection pencil 3 is connected with the temperature and detects the component, and the temperature detects the component and connects in the busbar 2 corresponding with first collection post 12. The second collection post 14 of the battery pack that is located the first lateral part has set a second collection pencil 4, and the one end of the second collection pencil 4 that is located the first lateral part of the battery pack is connected with second collection post 14, and the opposite other end of second collection pencil 4 is connected with corresponding busbar 2.
Wherein, the second lateral part of electric core subassembly still is provided with the first collection pencil and the second collection pencil that are used for connecting battery management system.
Based on the above description, the positive output terminal 11 and the negative output terminal 13 of the first side portion of two adjacent cells 1 are connected through the busbar 2, that is, the positive output terminal 11 and the negative output terminal 13 belong to the same potential, and only the potentials on the busbar 2 need to be collected, so that the potentials of the two electrodes can be obtained, based on this, only one end of the second collection harness 4 needs to be connected to the second collection post 14, and the other end of the second collection harness 4 is connected to the busbar 2, so that the potential signals can be collected, and according to this operation, the voltage values of all the cells 1 located on the first side portion can be collected, and similarly according to the above operation, the potential signals located on the second side portion of all the cells 1 can be collected, and because the first collection post 12 and the second collection post 14 are communicated, the voltage signals collected on the first side portion can be transmitted to the collection post of the second side portion, and finally, the pole on the second side part is communicated to the battery management system through the wiring harness.
Note that, the above-mentioned single-side potential of the core assembly is only needed to be acquired, because the resistance value of each electric core 1 in the core assembly can be input in advance in the battery management system, and in addition, the electric core 1 belongs to a series structure, and the currents at various positions are the same, so the battery management system can correspondingly calculate the voltage value of each electric core 1, and the single-side potential acquisition value can meet the requirement.
In addition, except can gathering the voltage, still can gather the temperature of module, specifically utilize first collection pencil 3, make its one end connect second and gather post 14, its other end connects the temperature and detects the component to fix the temperature and detect the component on busbar 2, can detect the temperature, utilize in this application above-mentioned structure can gather the module at least three temperature can, head end, tail end and middle part position department, can show the temperature condition of module.
It is thus clear that this application provides a brand-new unilateral voltage temperature sensing collection subassembly, has replaced FPC, FFC + nickel piece welding to busbar 2 and utmost point post on, has saved the nickel piece, and processing technology is simple, and convenient operation has saved the nickel piece, has reduced the solder joint, helps reducing the production degree of difficulty and cost, mainly utilizes the lateral space of module moreover, improves space utilization.
Note that the arrangement structure of the plurality of battery cells 1 is not limited to the above, and the number of the first collecting harness 3 and the second collecting harness 4 is not limited to the above, and is completely selected according to actual needs. In one embodiment of the present application, preferably, the first collecting harness 3 is connected to the first collecting column 12 by welding, so that the first collecting harness 3 is more firmly connected to the first collecting column 12, and the nickel plate transfer welding process and the failure link are reduced.
Further, preferably, as shown in fig. 2, the welding point formed between the first collecting harness 3 and the first collecting column 12 is covered with a structural adhesive 5, which reinforces the welding point, is not easy to fall off, and avoids the risk of water immersion.
In one embodiment of the present application, preferably, the second collecting harness 4 is connected to the second collecting post 14 and the bus bar 2 by welding, so that the second collecting post 14 and the bus bar 2 are connected to the second collecting harness 4 more firmly, and the nickel plate transfer welding process and the failure link are reduced.
In one embodiment of the present application, it is preferable that the welding points formed between the second collecting harness 4 and the second collecting post 14 and the busbar 2, respectively, are covered with the structural adhesive 5, as shown in fig. 2, so that the welding points are reinforced, the welding points are not easy to fall off, and the risk of water immersion is avoided.
In one embodiment of the present application, preferably, as shown in fig. 2, the temperature detecting member is connected to the bus bar 2 through the structural adhesive 5, and the structural adhesive 5 covers the temperature detecting member, so that the operation is simple and the cost is low on the basis of ensuring the connection firmness, and in addition, the structural adhesive 5 plays a role of protecting the temperature detecting member, thereby avoiding the risk of water immersion.
In one embodiment of the present application, the first collection beam 3 is preferably circular in cross-section and has an area of 0.35mm2-2mm2The strength of the composite material is ensured to be enough, the composite material is not easy to damage and has long service life.
In one embodiment of the present application, the second collection beam 4 is preferably circular in cross-section and has an area of 0.35mm2-2mm2The wire harness collecting device has the same technical effect as the first collecting wire harness 3, ensures that the wire harness collecting device has enough strength, is not easy to damage and has long service life.
In one embodiment of the present application, preferably, the temperature detecting member is a temperature sensor capable of detecting a temperature and transmitting a temperature signal.
In one embodiment of the present application, preferably, one end of the first collection wire harness of the cell assembly located at the second side portion is connected to the battery management system, and the other end of the first collection wire harness is connected to the temperature detection member, and the temperature detection member is connected to the corresponding cell.
The battery pack assembly is connected with the battery management system at one end of the second collecting wire harness positioned at the second side part, and the other end opposite to the battery pack assembly is connected with the corresponding bus bar.
It can be seen that, the second side of the electric core assembly can also be provided with a corresponding wire harness, the electric potential and the temperature of the electric core 1 of the second side are directly collected and then transmitted to the battery management system together with the electric potential and the temperature collected by the first side, and compared with single-side collection, the wire harness is additionally arranged, but the calculation difficulty of the battery management system is reduced.
To sum up, this unilateral voltage temperature-sensing gathers subassembly and has following advantage:
the module adopts on one side to gather voltage and temperature sensing signal by gathering the pencil, gathers utmost point post, busbar 2 through gathering pencil, electric core 1 and realizes the equipotential and gather. This scheme adopts the pencil can directly weld on busbar 2 and the collection utmost point post that corresponds, has replaced FPC, FFC + nickel piece to weld on busbar 2 and utmost point post, has saved the nickel piece, and processing technology is simple, the cost is reduced.
One end welding temperature sensor of first collection pencil 3, the other end welds on first collection utmost point post, has reduced nickel piece switching welding process, has reduced the inefficacy link, and both ends all adopt structure to glue 5 further fixed, have consolidated the welding point, have protected temperature sensor, have avoided the risk of soaking.
On the second was gathered the one end welding busbar 2 of pencil 4, the other end welded the second and gathered utmost point post on, reduced nickel piece switching welding process, reduced the inefficacy link, and both ends all adopt the structure to glue 5 fixed, have consolidated the welding point.
Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.
Claims (9)
1. The single-side voltage temperature sensing acquisition assembly is applied to a module, and is characterized in that the module comprises a plurality of battery cells (1), a positive output pole (11) and a first acquisition column (12) are arranged on one side part of each battery cell (1), a negative output pole (13) and a second acquisition column (14) are arranged on the other opposite side part of each battery cell (1), and the first acquisition column (12) is electrically connected with the second acquisition column (14);
the battery cells (1) are sequentially arranged in parallel, and the positive output pole (11) and the negative output pole (13) of any two adjacent battery cells (1) are reversely arranged; the positive output pole (11) and the negative output pole (13) of any two adjacent battery cores (1) which are positioned on the same side are connected through the busbar (2) to form a serial battery core assembly which is electrically connected end to end in sequence;
the single-side voltage temperature sensing acquisition assembly comprises a first acquisition wiring harness (3) and a second acquisition wiring harness (4); wherein at least the first collecting column (12) at the first side part, the middle first collecting column (12) and the last first collecting column (12) of the cell assembly are all provided with the first collecting harness (3), one end of the first collecting harness (3) is connected with the first collecting column (12), the other opposite end of the first collecting harness (3) is connected with a temperature detection component, and the temperature detection component is connected with the cell (1) formed with the first collecting column (12);
second collection columns (14) of the cell assembly, which are located on the first side portion, are provided with second collection harnesses (4), one ends of the second collection harnesses (4) are connected with the second collection columns (14), and the other opposite ends of the second collection harnesses (4) are connected with the busbar (2) of the cells (1) on which the second collection columns (14) are formed;
the electric core assembly is provided with a first collecting wire harness (3) and a second collecting wire harness (4), wherein the first collecting wire harness and the second collecting wire harness are used for being connected with a battery management system.
2. The single-sided voltage and temperature sensing acquisition assembly according to claim 1, wherein the first acquisition harness (3) is connected with the first acquisition column (12) by welding;
the welding point formed between the first collecting wiring harness (3) and the first collecting column (12) is covered with structural adhesive (5).
3. The single-sided voltage and temperature sensing collection assembly according to claim 1, wherein the second collection harness (4) is connected with the second collection post (14) and the bus bar (2) by welding, respectively;
and welding points formed between the second collecting wire harness (4) and the second collecting column (14) and between the second collecting wire harness and the bus bar (2) are covered with structural glue (5).
4. The single-sided voltage temperature-sensitive pickup assembly according to claim 1, wherein the temperature detection member is connected with a bus bar (2) of the battery cell (1) in which the first pickup column (12) is formed.
5. The single-sided voltage temperature-sensing acquisition assembly according to claim 4, characterized in that the temperature detection member is connected to the busbar (2) by a structural glue (5), and the structural glue (5) covers the temperature detection member.
6. Single-sided voltage temperature sensing pick-up assembly according to claim 1, characterized in that the cross-section of the first pick-up harness (3) is circular and the area of the cross-section is 0.35mm2-2mm2；
The cross section of the second collecting harness (4) is circular, and the area of the cross section is 0.35mm2-2mm2。
7. The single-sided voltage temperature sensing acquisition assembly of claim 1, wherein the temperature detection means is a temperature sensor; and/or
The first collecting wire harness (3) and the second collecting wire harness (4) are both signal transmission lines.
8. The single-sided voltage temperature-sensing collection assembly of claim 1, wherein one end of the first collection wire harness of the second side portion of the cell assembly is connected to the battery management system, the other end of the first collection wire harness is connected to the temperature detection member, and the temperature detection member is connected to the corresponding cell;
one end of a second collecting wire harness of the second side portion of the electric core assembly is connected with the battery management system, and the other end of the second collecting wire harness is connected with the corresponding bus bar.
9. The single-sided voltage temperature sensing acquisition assembly of claim 8 wherein at least a leading one, a middle one, and a trailing one of the first acquisition pillars of the electrical core assembly on the second side are provided with the first acquisition harness;
the second collection post of the electric core assembly that is located the second lateral part all sets the second collection pencil.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122142940.2U CN214477806U (en) | 2021-09-07 | 2021-09-07 | Unilateral voltage temperature sensing acquisition assembly |
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| CN202122142940.2U CN214477806U (en) | 2021-09-07 | 2021-09-07 | Unilateral voltage temperature sensing acquisition assembly |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115036653A (en) * | 2022-06-15 | 2022-09-09 | 浙江极氪智能科技有限公司 | Battery cell module, battery pack and new energy automobile |
| CN115621679A (en) * | 2022-12-19 | 2023-01-17 | 比亚迪股份有限公司 | Sampling structure, battery and vehicle |
-
2021
- 2021-09-07 CN CN202122142940.2U patent/CN214477806U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115036653A (en) * | 2022-06-15 | 2022-09-09 | 浙江极氪智能科技有限公司 | Battery cell module, battery pack and new energy automobile |
| CN115621679A (en) * | 2022-12-19 | 2023-01-17 | 比亚迪股份有限公司 | Sampling structure, battery and vehicle |
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