CN222995604U - Battery pack, battery device and electric equipment - Google Patents
Battery pack, battery device and electric equipment Download PDFInfo
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- CN222995604U CN222995604U CN202421759938.7U CN202421759938U CN222995604U CN 222995604 U CN222995604 U CN 222995604U CN 202421759938 U CN202421759938 U CN 202421759938U CN 222995604 U CN222995604 U CN 222995604U
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/244—Secondary casings; Racks; Suspension devices; Carrying devices; Holders characterised by their mounting method
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/531—Electrode connections inside a battery casing
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/543—Terminals
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- 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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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
本申请涉及一种电池组、电池装置及用电设备，电池组包括沿第一方向依次排列的多个电池，每个电池包括壳体、电芯和两个极柱组件，电芯位于电池的壳体内；每个极柱组件用于导通电芯，沿第二方向两个极柱组件分列电芯的两侧，第二方向与第一方向相交，两个极柱组件相背延伸并分别伸出壳体，各个电池沿第二方向位于同一侧的极柱组件依次导通。本申请电池组通过两个分列两侧的极柱组件以实现电池的充放电，位于两侧的极柱组件可以减小电流的传导路径，降低通过的电流，进而降低电池的产生的热量并提高电池的充放电能力。
The present application relates to a battery pack, a battery device and an electrical device. The battery pack includes a plurality of batteries arranged in sequence along a first direction. Each battery includes a shell, a battery cell and two pole assemblies. The battery cell is located in the shell of the battery. Each pole assembly is used to conduct the battery cell. Two pole assemblies are arranged on both sides of the battery cell along a second direction. The second direction intersects with the first direction. The two pole assemblies extend in opposite directions and extend out of the shell respectively. The pole assemblies of each battery located on the same side along the second direction are conducted in sequence. The battery pack of the present application realizes the charging and discharging of the battery through two pole assemblies arranged on both sides. The pole assemblies located on both sides can reduce the conduction path of the current, reduce the current passing through, and thus reduce the heat generated by the battery and improve the charging and discharging capacity of the battery.
Description
Technical Field
The present application relates to the field of battery packs, and in particular, to a battery pack, a battery device, and electric devices.
Background
The battery pack is communicated with the electric equipment to realize power supply of the electric equipment.
The current battery pack has the advantages of small tab and pole overcurrent area, high heating, long current conduction path and limited allowable current, so that the battery pack has limited charge and discharge capability.
Disclosure of utility model
In view of the above-mentioned technical problems, an object of the present application is to provide a battery pack with a relatively high charge-discharge capability, a battery device including the battery pack, and an electric device including the battery pack or the battery device, which specifically includes the following technical solutions:
In a first aspect, an embodiment of the application provides a battery pack, which comprises a plurality of batteries sequentially arranged along a first direction, wherein each battery comprises a shell, a battery core and two pole assemblies, the battery core is positioned in the shell of the battery, each pole assembly is used for conducting the battery core, the two pole assemblies are respectively arranged on two sides of the two battery cores along a second direction, the second direction is intersected with the first direction, the two pole assemblies extend away from each other and respectively extend out of the shell, and the pole assemblies positioned on the same side of each battery along the second direction are sequentially conducted.
The battery of the battery pack is provided with the two pole assemblies, and the two pole assemblies are connected with the electric core in a conducting mode, so that the two pole assemblies can be charged and discharged independently, and further power supply of electric equipment is achieved.
According to the battery pack, the battery is charged and discharged through the two pole assemblies on the two sides of the split row, the conducting paths of current can be reduced through the pole assemblies on the two sides, the passing current is reduced, the heat generated by the battery is further reduced, and the charging and discharging capacity of the battery is improved.
In one embodiment, each of the pole assemblies includes a first pole and a second pole spaced apart from each other, the battery pack includes an electrical connection, and the first pole of one of the two adjacent cells is electrically connected to the second pole of the other cell by the electrical connection.
In this embodiment, each pole assembly includes a first pole and a second pole, and the electrical connection piece connects the first pole and the second pole of two adjacent batteries, so that the two adjacent batteries are conducted, and then the plurality of batteries in the battery pack are conducted, thereby improving the capacity of the battery pack.
In one embodiment, a first pole of one of the two adjacent cells is aligned with a second pole of the other cell in a first direction, wherein one end of the electrical connection is in electrical communication with the first pole of the one cell and the other end extends in the first direction and is in electrical communication with the second pole of the other cell.
In this embodiment, the first and second poles of the two batteries are aligned, so that the distance between the first and second poles can be reduced, and the size of the electrical connection member can be further reduced.
In one embodiment, the first pole of one of the two adjacent cells is aligned with the first pole of the other cell in a first direction, wherein one end of the electrical connection is in conduction with the first pole of one cell and the other end extends toward and is in conduction with the second pole of the other cell.
In one embodiment, two ends of each battery cell along the second direction are respectively provided with a tab assembly, each tab assembly comprises a first tab and a second tab, the first tab and the second tab are mutually spaced, the first tab is connected between the battery cell and the first pole, the second tab is connected between the battery cell and the second pole, and the battery cell is respectively communicated with the first pole and the second pole through the first tab and the second tab.
In this embodiment, the battery cell is respectively conducted with the first pole and the second pole through the first pole ear and the second pole, and the first pole and the second pole can be used as the positive pole and the negative pole to be electrically connected with the electric equipment, so that the conduction between the battery cell and the electric equipment is realized.
In one embodiment, the battery pack includes a first lead-out member and a second lead-out member, the first lead-out member and the second lead-out member being arranged on both sides of the plurality of cells in a first direction, a first pole of one of two cells located at both ends of the plurality of cells in the first direction being in conduction with the first lead-out member, and a second pole of the other cell being in conduction with the second lead-out member.
In this embodiment, the first lead-out member of the battery pack is located at one side of the plurality of batteries along the first direction, the first lead-out member is conducted with the first pole of the nearest battery, the second lead-out member is located at the other side of the plurality of batteries, and the second lead-out member is conducted with the second pole of the nearest battery, so that the first lead-out member and the second lead-out member are respectively used as the positive pole and the negative pole of the battery pack and are electrically connected with the electric equipment.
In one embodiment, the first lead-out member includes two first connecting members, one ends of the two first connecting members are fixedly connected to form a first lead-out portion, and the other ends of the two first connecting members are respectively conducted with two first poles on two sides of the battery.
In one embodiment, the second lead-out member includes two second connecting members, one ends of the two second connecting members are fixedly connected to form a second lead-out portion, and the other ends of the two second connecting members are respectively conducted with two second poles on two sides of the battery.
In one embodiment, the first lead-out portion and the second lead-out portion are located on the same side of the battery pack in the second direction, and the first lead-out portion and the second lead-out portion extend toward opposite directions.
In one embodiment, the battery pack includes a monitoring module located at one end of the battery pack along the second direction, the monitoring module being configured to monitor a voltage of a pole assembly having one battery located at one side along the second direction.
In this embodiment, the monitoring module monitors the voltage of the post subassembly of battery both sides respectively, avoids the current of single battery too big, leads to other batteries to damage, and then guarantees the normal work of group battery and consumer.
In a second aspect, the present application further provides a battery device, including a housing and the battery pack described above, where the housing includes an inner cavity, and the battery pack is disposed in the inner cavity.
The application further provides electric equipment, which comprises the battery pack, wherein the battery pack is used for supplying power to the electric equipment, or the battery device is used for supplying power to the electric equipment.
It can be understood that the battery device and the electric equipment adopt the battery pack, so that the battery pack has higher charge and discharge capacity and lower heating efficiency, and the energy utilization rate of the electric equipment is further improved.
Drawings
Fig. 1 is a schematic view illustrating a structure of a battery pack according to an embodiment of the present application;
Fig. 2 is a schematic view illustrating a structure of a battery pack according to another view angle according to an embodiment of the present application;
fig. 3 is a schematic view illustrating an internal structure of a battery according to an embodiment of the present application;
FIG. 4 is a schematic view showing a part of the internal structure of a battery according to an embodiment of the present application;
Fig. 5 is a schematic view illustrating a structure of a battery according to an embodiment of the present application;
Fig. 6 is a schematic view showing a structure of a battery according to another view angle provided in an embodiment of the present application;
Fig. 7 is a schematic view showing a partial structure of a battery according to an embodiment of the present application;
fig. 8 is a schematic view showing a partial structure of a battery according to another view angle provided in an embodiment of the present application;
Fig. 9 is a schematic view illustrating a structure of a battery pack according to another embodiment of the present application;
Fig. 10 is an exploded view illustrating a battery pack according to another embodiment of the present application;
fig. 11 is an exploded view of a battery pack according to an embodiment of the present application;
Fig. 12 is an exploded view illustrating a battery pack according to another view angle according to an embodiment of the present application.
Detailed Description
In order that the application may be readily understood, a more complete description of the application will be rendered by reference to the appended drawings. The drawings illustrate preferred embodiments of the application. This application may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
The following description of the embodiments refers to the accompanying drawings, which illustrate specific embodiments in which the application may be practiced. The numbering of the components itself, e.g. "first", "second", etc., is used herein merely to distinguish between the described objects and does not have any sequential or technical meaning. The term "coupled" as used herein includes both direct and indirect coupling (coupling), unless otherwise indicated. Directional terms, such as "upper", "lower", "front", "rear", "left", "right", "inner", "outer", "side", etc., in the present application are merely referring to the directions of the attached drawings, and thus, directional terms are used for better, more clear explanation and understanding of the present application, rather than indicating or implying that the apparatus or element being 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 application.
The application provides a battery device, which comprises a shell and a battery pack, wherein the shell comprises an inner cavity, and the battery pack is arranged in the inner cavity.
Referring to fig. 1 to 4, fig. 1 illustrates a schematic structure of a battery pack 100 according to one view angle provided in an embodiment of the present application, fig. 2 illustrates a schematic structure of a battery pack 100 according to another view angle provided in an embodiment of the present application, fig. 3 illustrates an internal structure of a battery 10 according to an embodiment of the present application, and fig. 4 illustrates a partial internal structure of a battery 10 according to an embodiment of the present application.
The battery pack 100 of the present application includes a plurality of cells 10 arranged in sequence along a first direction 001, each cell 10 including a housing 11, a battery cell 15, and two post assemblies 12, the battery cell 15 being located within the housing of the cell 10.
Specifically, in one embodiment, as shown in fig. 1 and 2, the battery pack 100 is provided with a plurality of batteries 10 arranged in sequence along a first direction 001, and a second direction 002 is parallel to the length direction of the batteries 10, and the first direction 001 and the second direction 002 are perpendicular to each other. Referring to fig. 3, the battery pack 100 includes a battery cell 15, and the battery cell 15 is located inside the housing 11.
Each of the pole assemblies 12 of the battery pack 100 of the present application is configured to turn on the electrical core 15, and two pole assemblies 12 are arranged on both sides of the electrical core 15 along the second direction 002.
Specifically, in one embodiment, as shown in fig. 3 and 4, the battery pack 100 includes two pole assemblies 12, namely, a first pole assembly 12a and a second pole assembly 12b, the first pole assembly 12a and the second pole assembly 12b are fixed on two sides of the housing 11 along the second direction 002, the first pole assembly 12a and the second pole assembly 12b are respectively in conduction with the battery cell 15, each pole assembly 12 includes a first pole 121 and a second pole 122, and the first pole 121 and the second pole 122 are spaced from each other.
The two pole assemblies 12 of the battery pack 100 extend oppositely and respectively extend out of the housing 11, and the pole assemblies 12 on the same side of each battery 10 along the second direction 002 are conducted sequentially.
Specifically, in one embodiment, one end of the first pole assembly 12a extends toward a side away from the battery cell 15 and protrudes through the housing 11 to the outside of the housing 11, and one end of the second pole assembly 12b extends toward a side away from the battery cell 15 and protrudes through the housing 11 to the outside of the housing 11.
In the present embodiment, the first pole assemblies 12a of the plurality of batteries 10 are located at one side of the housing 11, the first pole assemblies 12a of the plurality of batteries 10 are sequentially turned on, the second pole assemblies 12b of the plurality of batteries 10 are located at the other side of the housing 11, and the second pole assemblies 12b of the plurality of batteries are sequentially turned on.
The battery 10 of the battery pack 100 is provided with the battery core 15 and the two pole assemblies 12, the battery core 15 is communicated with the pole assemblies 12, and the pole assemblies 12 can be electrically connected with electric equipment, so that the battery core 15 is communicated with the electric equipment, and further, the power supply of the battery pack 100 and the electric equipment is realized.
The battery 10 of the battery pack 100 of the present application is provided with two pole assemblies 12 and a battery cell 15, and compared with the battery structure of one pole assembly 12 and the battery cell 15, the battery 10 of the present application has stronger charge and discharge capability, and can improve the output power of the battery 10 and reduce the charge time of the battery 10.
The positive pole and the negative pole of the pole post component in the battery of the battery pack in the prior art are respectively arranged at two sides of the shell, the length of the conduction path from the positive pole to the negative pole through the battery core is the size of the battery shell, the current of the battery is large, the battery is seriously heated due to the current, and the battery pack is easy to overheat.
The pole assemblies 12 in the battery 10 of the battery pack 100 are positioned on two opposite sides, and the length of a conduction path from the positive electrode to the negative electrode through the battery core 15 is smaller than the size of the shell 11 of the battery 10, so that the conduction path of the current can be reduced, and the charge and discharge capacity of the battery 10 is further improved.
Meanwhile, the current of the battery 10 of the battery pack 100 is conducted by the two pole assemblies 12 and the battery core 15, and the current with the same magnitude is shunted through the two relatively independent pole assemblies 12 and the circuit of the battery core 15, so that the current passing through each pole assembly 12 and the battery core 15 is smaller, the heating efficiency of the battery 10 caused by the current is lower, and the heating of the battery pack 100 is further reduced.
The cells 10 of the battery pack 100 of the present application are arranged in sequence along the first direction 001, and the two pole assemblies 12 are arranged along the second direction 002 intersecting the first direction 001 such that the two pole assemblies 12 are not located between the two cells 10. Compared with the pole arranged between the two batteries 10, the housing 11 has larger space along the two sides of the second direction 002, so as to facilitate the electrical connection between the electrical equipment and the pole assembly 12.
In addition, the length direction of the battery 10 is parallel to the second direction 002, so that the conduction path length of the current from the positive electrode to the negative electrode through the battery cell can be reduced, and the heat generation efficiency of the battery 10 and the battery pack 100 can be further reduced.
The application also provides electric equipment, which comprises the battery pack 100, wherein the battery pack 100 is used for supplying power to the electric equipment, or comprises the battery device, and the battery device is used for supplying power to the electric equipment.
It should be noted that, the battery pack 100 of the present application not only can be applied to electric equipment or battery devices for supplying power to the electric equipment, but also can be applied to other systems or devices that need to be charged and discharged, and has stronger charging and discharging capability and lower heating efficiency.
In addition, the battery 10 of the present application may be applied to the battery pack 100, and the single battery 10 may be applied to electric equipment or other systems or devices that need to be charged and discharged, and may also have a stronger charging and discharging capability and a lower heating efficiency.
Referring to fig. 5-8, fig. 5 illustrates a schematic structure of a battery 10 according to one embodiment of the present application, fig. 6 illustrates a schematic structure of a battery 10 according to another embodiment of the present application, fig. 7 illustrates a schematic structure of a battery 10 according to one embodiment of the present application, and fig. 8 illustrates a schematic structure of a battery 10 according to another embodiment of the present application.
In one embodiment, the pole assembly 12 includes a first pole 121 and a second pole 122 spaced apart from each other, the battery pack 100 includes an electrical connector 20, and the first pole 121 of one cell 10 of two adjacent cells 10 is conducted to the second pole 122 of the other cell 10 through the electrical connector 20.
In one embodiment, as shown in fig. 5 and 6, the first pole assembly 12a includes two poles, a first pole assembly first pole 121a and a first pole assembly second pole 122a, respectively, and the second pole assembly 12b includes two poles, a second pole assembly first pole 121b and a second pole assembly second pole 122b, respectively.
It will be appreciated that two poles in the first pole assembly 12a may be respectively used as a positive pole and a negative pole, and two poles in the second pole assembly 12b may be respectively used as a positive pole and a negative pole, so as to realize sequential conduction of adjacent cells 10.
In one embodiment, the housing 11 is provided with a first surface and a second surface facing adjacent cells 10, wherein the first surface and the second surface are located on both sides of the housing 11 in the first direction 001, respectively. One end of the first pole 121 is electrically connected to the battery cell 15, and the other end of the first pole may pass through the first surface to extend out of the housing 11 and continue to extend toward the adjacent battery cell 10, while one end of the second pole 122 is electrically connected to the battery cell 15, and the other end of the second pole may also pass through the second surface to extend out of the housing 11 and continue to extend toward the adjacent battery cell 10. The present embodiment can reduce the size of the electrical connector 20, thereby reducing the loss of the current passing through the electrical connector 20.
In another embodiment, the first pole 121 passing through the first surface is in contact with the second pole 122 passing through the second surface, and two adjacent cells 10 are electrically connected through the first pole 121 and the second pole 122.
In one embodiment, the first pole 121 of one cell 10 of two adjacent cells 10 is aligned with the second pole 122 of the other cell 10 along a first direction 001, wherein one end of the electrical connection member 20 is in conduction with the first pole 121 of one cell 10 and the other end extends along the first direction 001 and is in conduction with the second pole 122 of the other cell 10.
In one embodiment, as shown in fig. 1 and 2, taking the first pole assembly 12a side of the housing 11 as an example, the first pole assembly first pole 121a of one cell 10 is aligned with the first pole assembly second pole 122a of an adjacent cell 10, such that the electrical connector 20 is smaller in size, such as the rectangular electrical connector 20 in fig. 1 and 2. It will be appreciated that rectangular electrical connector 20 may also be applied to the second pole assembly 12b side of housing 11.
Referring to fig. 9 and 10, fig. 9 is a schematic diagram illustrating a structure of a battery pack 100 according to another embodiment of the present application, and fig. 10 is a schematic diagram illustrating an exploded structure of the battery pack 100 according to another embodiment of the present application.
In one embodiment, the first pole 121 of one of the two adjacent cells is aligned with the first pole 121 of the other cell 10 along a first direction 001, wherein one end of the electrical connection member 20 is in conduction with the first pole 121 of one cell 10, and the other end extends toward the second pole 122 of the other cell 10 and is in conduction with the second pole 122 of the other cell 10.
In one embodiment, as shown in fig. 9 and 10, taking the first pole assembly 12a side of the housing 11 as an example, the first pole assembly first pole 121a of one battery 10 is aligned with the first pole assembly first pole 121a of the adjacent battery 10, and is not aligned with the first pole assembly second pole 122a thereof, and the electrical connector 20 extends toward the first pole assembly second pole 122a to enable the conduction of the adjacent battery 10.
It will be appreciated that in both embodiments, the electrical connection 20 of the battery pack 100 of fig. 9 and 10 has a longer conduction path for the current and a greater loss during the current conduction compared to the battery pack 100 of fig. 1 and 2, and therefore, the loss of electrical energy can be reduced by aligning the first post 121 of one of the two adjacent batteries 10 with the second post 122 of the other battery 10 in the first direction 001.
In one embodiment, two ends of each battery cell 15 along the second direction 002 are respectively provided with a tab assembly, the tab assembly comprises a first tab and a second tab, the first tab and the second tab are spaced from each other, the first tab is connected between the battery cell 15 and the first pole 121, the second tab is connected between the battery cell 15 and the second pole 122, and the battery cell 15 is respectively conducted with the first pole and the second pole through the first tab and the second tab.
Referring to fig. 11 and 12, fig. 11 is a schematic exploded view of a battery pack 100 according to one embodiment of the present application, and fig. 12 is a schematic exploded view of a battery pack 100 according to another embodiment of the present application.
In one embodiment, the battery pack 100 includes a first lead-out member 31 and a second lead-out member 32, the first lead-out member 31 and the second lead-out member 32 are respectively arranged on two sides of the plurality of batteries 10 along a first direction 001, a first pole 121 of one battery 10 of two batteries 10 located on two ends of the plurality of batteries 10 along the first direction 001 is in conduction with the first lead-out member 31, and a second pole 122 of the other battery 10 is in conduction with the second lead-out member 32.
In one embodiment, the first lead-out member 31 includes two first connection members 311, one ends of the two first connection members 311 are fixed to each other to form a first lead-out portion 312, and the other ends of the two first connection members 311 are respectively in communication with two first poles 121 on both sides of the battery 10.
In one embodiment, the second lead-out member 32 includes two second connecting members 321, wherein one ends of the two second connecting members 321 are fixed to each other to form a second lead-out portion 322, and the other ends of the two second connecting members 321 are respectively in conduction with the two second posts 122 on both sides of the battery 10.
In one embodiment, as shown in fig. 11, the first extraction member 31 includes a first connector 311a and a second connector 311b, and as shown in fig. 1, one end of the first connector 311a and one end of the second connector 311b are fixedly connected to form a first extraction portion 312, or one end of the first connector 311a and one end of the second connector 311b are fixedly connected to form a first extraction portion 312. The first outlet 312 is located at one side of the battery pack 100 along the second direction 002 for supplying power to the electric device. The other end of the first connecting sub-member 311a extends to the other end of the battery pack 100 toward the second direction 002 and is fixed to the first pole 121 at the other end of the battery pack 100, and the other end of the second connecting sub-member 311b is fixed to the first pole 121 at the same side of the battery pack 100, thereby conducting the first poles 121 at both sides of the battery pack 100.
In one embodiment, the second drawing member 32 may also be configured as in the above embodiment, where the second drawing member 32 includes a third connector 321a and a fourth connector 321b, and one end of the third connector 321a is fixedly connected to one end of the fourth connector 321b to form the second drawing portion 322, or one end of the third connector 321a is fixedly connected to one end of the fourth connector 321b and one of them is formed with the second drawing portion 322. The other end of the third connection sub-member 321a and the other end of the fourth connection sub-member 321b are respectively fixed with the second poles 122 of the battery pack 100 to achieve conduction of the second poles 122 at both sides of the battery pack 100.
It will be appreciated that there is more space on both sides of the battery pack 100 to facilitate connection of the first and second lead-out portions 312, 322 to external electrical devices.
In one embodiment, first lead-out portion 312 and second lead-out portion 322 are located on the same side of battery pack 100 along second direction 002, with first lead-out portion 312 and second lead-out portion 322 extending in opposite directions. The first leading-out portion 312 and the second leading-out portion 322 are located on the same side of the battery pack 100, so that connection of external electric equipment can be facilitated, the distance between the first leading-out portion 312 and the second leading-out portion 322 is reduced, the conduction path of current is reduced, and the charge and discharge capacity of the battery pack 100 is improved. In this embodiment, the first and second lead-out members 31 and 32 are respectively used as the positive and negative electrodes of the battery pack 100 for electrical connection with the electrical equipment. It will be appreciated that connection to the powered device may be facilitated by first and second outlet members 31, 32.
In one embodiment, the battery pack 100 includes a monitoring module located at one end of the battery pack 100 in the second direction 002 for monitoring the voltage of the pole assembly 12 of one of the cells 10 located at one side in the second direction 002. The monitoring module monitors the voltages of the pole assemblies 12 at the two sides of the battery 10, so that the damage to other batteries 10 caused by overlarge current of the single battery 10 is avoided, and the normal operation of the battery pack 100 and electric equipment is further ensured. Compared with the prior art, the monitoring module needs to be connected with the poles at the two ends of the battery 10 along the second direction 002, and the monitoring module in the scheme only needs to be arranged on one side of the battery pack 100 along the second direction 002, so that the voltage between the first pole 121 and the second pole 122 can be collected and monitored, and the monitoring module is simple in structure and convenient to sample.
In one embodiment, the monitoring module may measure the voltage between the first pole 121 and the second pole 122 on one side of the battery pack 100 and also monitor the voltage of the battery 10.
In another embodiment, the monitoring module can directly measure the voltage of the electrical connection 20, and can also monitor the voltage of the battery 10.
In another embodiment, the monitoring module may measure the voltage between the first and second outlets 31 and 32 to monitor the voltage of the battery pack 100.
In one embodiment, the housing 11 is filled with an electrolyte, and the housing 11 is provided with a filling hole 13 penetrating in the second direction 002, and the filling hole 13 is used for replenishing the electrolyte in the housing 11. The liquid injection hole 13 penetrates the housing 11 along the second direction 002, so that the liquid injection hole 13 is located at two sides of the housing 11 along the second direction 002, and compared with the space between the batteries 10 and 10, the two sides of the housing 11 along the second direction 002 are provided with larger spaces for liquid injection operation.
In one embodiment, as shown in fig. 5 and 7, the electrolyte injection hole 13 is located at one side of the first pole assembly 12a, and the electrolyte in the housing 11 can be replenished through the electrolyte injection hole 13.
In another embodiment, the liquid injection hole 13 is located on the side of the second pole assembly 12b, and the electrolyte in the housing 11 can be replenished through the liquid injection hole 13.
In one embodiment, the housing 11 is provided with a explosion-proof hole 14 extending therethrough along the second direction 002, the explosion-proof hole 14 is used for pressure relief in the housing 11, the battery pack 100 comprises an explosion-proof valve provided in the explosion-proof hole 14 or the battery pack 100 comprises an explosion-proof cover plate sliding relative to the housing 11 to shield or expose the explosion-proof hole 14. Explosion vent 14 runs through along second direction 002 for explosion vent 14 is located the both sides of casing 11 along second direction 002, compares between battery 10 and battery 10, and casing 11 has bigger space in the both sides of second direction 002 to be convenient for carry out the pressure release operation. Meanwhile, the other batteries 10 may be damaged by the high-pressure gas discharged during the pressure relief operation, and the explosion-proof holes 14 provided on both sides of the housing 11 may also prevent the high-pressure gas from moving toward the other batteries 10 after being discharged, thereby protecting the battery pack 100.
In one embodiment, as shown in fig. 6 and 8, the explosion vent 14 is located on the side of the first pole assembly 12a, and the high pressure gas within the housing 11 is exhausted through the explosion vent 14.
In another embodiment, the explosion vent 14 is located on the side of the second pole assembly 12b, and also high pressure gas within the housing 11 may be vented through the explosion vent 14.
In one embodiment, the battery pack 100 includes an explosion-proof valve fixed to the case 11, which can communicate or isolate the inside of the case 11 from the outside by opening or closing the explosion-proof valve, and also can realize the discharge of high-pressure gas inside the case 11.
In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Claims (11)
1. A battery pack comprising a plurality of cells arranged in sequence along a first direction, each of the cells comprising a housing, a cell and two post assemblies, the cell being located within the housing of the cell;
Each pole assembly is used for conducting the battery core, two pole assemblies are arranged on two sides of the battery core in a split mode along a second direction, the second direction is intersected with the first direction, the two pole assemblies extend oppositely and extend out of the shell respectively, and each battery is conducted in sequence along the pole assemblies located on the same side along the second direction.
2. The battery of claim 1, wherein each of said post assemblies includes first and second spaced apart posts, said battery including an electrical connection through which said first post of one of two adjacent cells is conducted to said second post of the other cell.
3. The battery of claim 2, wherein the first post of one of the two adjacent cells is aligned with the second post of the other cell along the first direction, wherein:
One end of the electric connection piece is communicated with the first pole of one battery, and the other end of the electric connection piece extends along the first direction and is communicated with the second pole of the other battery.
4. The battery of claim 2, wherein the first post of one of the two adjacent cells is aligned with the first post of the other cell along the first direction, wherein:
one end of the electric connection piece is conducted with the first pole of one battery, and the other end extends towards the second pole of the other battery and is conducted with the second pole of the other battery.
5. The battery pack of claim 2, wherein tab assemblies are respectively disposed at two ends of each of the battery cells along the second direction, the tab assemblies comprise first tabs and second tabs, the first tabs and the second tabs are spaced apart from each other, the first tabs are connected between the battery cells and the first posts, the second tabs are connected between the battery cells and the second posts, and the battery cells are respectively conducted with the first posts and the second posts through the first tabs and the second tabs.
6. The battery pack according to any one of claims 2 to 5, wherein the battery pack includes a first lead-out member and a second lead-out member, the first lead-out member and the second lead-out member being disposed on both sides of the plurality of cells in the first direction, the first electrode tab of one of the two cells located on both ends of the plurality of cells in the first direction being in communication with the first lead-out member, and the second electrode tab of the other cell being in communication with the second lead-out member.
7. The battery pack according to claim 6, wherein the first lead-out member includes two first connection members, one ends of the two first connection members being fixed to each other for forming a first lead-out portion, the other ends of the two first connection members being respectively in conduction with the two first poles on both sides of the battery, and/or
The second leading-out piece comprises two second connecting pieces, one ends of the two second connecting pieces are mutually fixed and used for forming a second leading-out part, and the other ends of the two second connecting pieces are respectively communicated with the two second poles on two sides of the battery.
8. The battery pack according to claim 7, wherein the first lead-out portion and the second lead-out portion are located on the same side of the battery pack in the second direction, the first lead-out portion and the second lead-out portion extending in opposite directions.
9. The battery of any of claims 1-5, wherein the battery includes a monitoring module located at one end of the battery in the second direction, the monitoring module being configured to monitor the voltage of the post assembly on one side of the battery in the second direction.
10. A battery device comprising a housing and the battery pack of any one of claims 1-9, the housing comprising an interior cavity, the battery pack disposed in the interior cavity.
11. A powered device comprising a battery pack as claimed in any one of claims 1 to 9 for powering the powered device, or
Comprising the battery device of claim 10 for powering the powered device.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421759938.7U CN222995604U (en) | 2024-07-23 | 2024-07-23 | Battery pack, battery device and electric equipment |
| PCT/CN2025/106476 WO2026021234A1 (en) | 2024-07-23 | 2025-07-01 | Battery pack, battery apparatus, and electrical device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202421759938.7U CN222995604U (en) | 2024-07-23 | 2024-07-23 | Battery pack, battery device and electric equipment |
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| CN222995604U true CN222995604U (en) | 2025-06-17 |
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| CN202421759938.7U Active CN222995604U (en) | 2024-07-23 | 2024-07-23 | Battery pack, battery device and electric equipment |
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| WO (1) | WO2026021234A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2026021234A1 (en) * | 2024-07-23 | 2026-01-29 | 比亚迪股份有限公司 | Battery pack, battery apparatus, and electrical device |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201789033U (en) * | 2010-03-26 | 2011-04-06 | 中大工业集团公司 | High-power and high-capacity lithium battery device for electric bus |
| CN206893634U (en) * | 2017-06-22 | 2018-01-16 | 江苏海基新能源股份有限公司 | A kind of monocoque for realizing high multiplying power lithium ion battery |
| CN110364675B (en) * | 2019-06-21 | 2020-10-20 | 比亚迪股份有限公司 | Single battery, power battery pack and vehicle |
| CN112117399B (en) * | 2019-06-21 | 2022-01-07 | 比亚迪股份有限公司 | Single battery, power battery pack and vehicle |
| CN112582668A (en) * | 2021-02-25 | 2021-03-30 | 潍坊聚能电池有限公司 | Multi-pole column lithium ion power battery and manufacturing method thereof |
| CN217114495U (en) * | 2021-12-31 | 2022-08-02 | 陕西奥林波斯电力能源有限责任公司 | High-capacity lithium ion battery with lithium ion battery core and pole side out |
| CN114447506B (en) * | 2022-01-28 | 2024-05-24 | 董晓龙 | Modularized assembling and bearing type lithium battery structure |
| CN218939762U (en) * | 2022-11-23 | 2023-04-28 | 天津市捷威动力工业有限公司 | Lithium ion power battery |
| CN117712582A (en) * | 2024-01-03 | 2024-03-15 | 洛阳储变电系统有限公司 | High-rate cover plate and high-rate battery |
| CN222995604U (en) * | 2024-07-23 | 2025-06-17 | 重庆弗迪电池研究院有限公司 | Battery pack, battery device and electric equipment |
-
2024
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2026021234A1 (en) * | 2024-07-23 | 2026-01-29 | 比亚迪股份有限公司 | Battery pack, battery apparatus, and electrical device |
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