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CN-224217667-U - Battery assembly

CN224217667UCN 224217667 UCN224217667 UCN 224217667UCN-224217667-U

Abstract

The application discloses a battery assembly, and relates to the technical field of battery design. The battery assembly comprises a protection plate, at least one adapter plate, at least one first electric core and at least one second electric core, wherein the first electric core and the second electric core are arranged at intervals, a tab of the first electric core is electrically connected with a first connecting area of the protection plate, the adapter plate is provided with a first plug terminal and a second plug terminal which are arranged at intervals, the tab of the second electric core is in plug fit with the first plug terminal and are electrically connected with the first plug terminal, a second connecting area of the protection plate is provided with a third plug terminal, and the third plug terminal is in plug fit with the second plug terminal and is electrically connected with the second plug terminal, so that the tab of the second electric core is electrically connected with the protection plate through the adapter plate. The scheme can solve the problem that the current capacity of the adapter plate of the current battery assembly is weak.

Inventors

  • PENG WU
  • Qian Congkuan
  • YU XUDONG
  • ZHU LONGBAO

Assignees

  • 浙江欣旺达电子有限公司

Dates

Publication Date
20260508
Application Date
20250508

Claims (10)

  1. 1. The battery assembly is characterized by comprising a protection plate (200), at least one adapter plate (100), at least one first electric core (310) and at least one second electric core (320), wherein the first electric core (310) and the second electric core (320) are arranged at intervals, a lug (311) of the first electric core (310) is electrically connected with a first connection area (240) of the protection plate (200), the adapter plate (100) is provided with a first plug terminal (110) and a second plug terminal (120) which are arranged at intervals, a lug (321) of the second electric core (320) is in plug fit with the first plug terminal (110) and is electrically connected with the first plug terminal and the second plug terminal, a second connection area (250) of the protection plate (200) is provided with a third plug terminal (210), and the third plug terminal (210) is in plug fit with the second plug terminal (120) and is electrically connected with the second plug terminal so that a lug (321) of the second electric core (320) is electrically connected with the protection plate (200) through the protection plate (100).
  2. 2. The battery assembly according to claim 1, wherein the first plug terminal (110) and the third plug terminal (210) each comprise a base (111), the base (111) is provided with a plug groove (111 a), the tab (321) of the second electric core (320) is in plug fit with and electrically connected with the plug groove (111 a) of the first plug terminal (110), the second plug terminal (120) is in plug fit with and electrically connected with the plug groove (111 a) of the third plug terminal (210), and the plug direction of at least one of the tab (321) of the second electric core (320) and the second plug terminal (120) is perpendicular to the thickness direction of the second electric core (320).
  3. 3. The battery assembly according to claim 2, wherein a positioning protrusion (111 b) is disposed in the plugging slot (111 a) of the first plugging terminal (110), a first positioning hole (321 a) is disposed in the tab (321) of the second electrical core (320), and the tab (321) of the second electrical core (320) is sleeved on the positioning protrusion (111 b) of the first plugging terminal (110) through the first positioning hole (321 a), so that the tab (321) of the second electrical core (320) is in positioning fit with the base (111) of the first plugging terminal (110).
  4. 4. The battery assembly according to claim 2, wherein a positioning protrusion (111 b) is disposed in the plugging slot (111 a) of the third plugging terminal (210), the second plugging terminal (120) is provided with a second positioning hole (121), and the second plugging terminal (120) is sleeved on the positioning protrusion (111 b) of the third plugging terminal (210) through the second positioning hole (121), so that the second plugging terminal (120) is in positioning fit with the base (111) of the third plugging terminal (210).
  5. 5. The battery assembly according to claim 2, wherein the base (111) is provided with an avoidance opening (111 d) communicated with the plugging slot (111 a), the avoidance opening (111 d) penetrates through one face of the base (111) away from the plate main body of the adapter plate (100), the third plugging terminal (210) further comprises a positioning piece (211), at least part of the positioning piece (211) is arranged in the avoidance opening (111 d), the positioning piece (211) is rotationally connected with the base (111) so that the positioning piece (211) is pressed on the second plugging terminal (120), and a rotation center shaft of the positioning piece (211) is located at one end of the base (111) away from a notch of the plugging slot (111 a).
  6. 6. The battery assembly according to claim 5, wherein a positioning protrusion (111 b) for positioning and matching with the second plug terminal (120) is arranged in the plug groove (111 a), the positioning piece (211) is provided with a avoidance notch (211 a), and the avoidance notch (211 a) is opposite to the positioning protrusion (111 b); The positioning piece (211) is further provided with an operation part (211 b), the operation part (211 b) is located at the avoidance notch (211 a), and the operation part (211 b) can drive the positioning piece (211) to rotate relative to the base (111).
  7. 7. The battery assembly according to claim 5, wherein at least one of the opposite side walls of the escape opening (111 d) is provided with a limit protrusion (111 c), the limit protrusion (111 c) being located above the positioning member (211) in the thickness direction of the second cell (320), the positioning member (211) being limitedly engageable with the limit protrusion (111 c).
  8. 8. The battery assembly according to claim 5, wherein the base (111) includes a first protruding portion (111 e), a bottom plate (111 f), and a second protruding portion (111 g) that are sequentially connected, the first protruding portion (111 e) and the second protruding portion (111 g) each include a first side plate (111 e 1), a top plate (111 e 2), and a second side plate (111 e 3) that are sequentially connected, the first side plate (111 e 1) is connected to the bottom plate (111 f), the second side plate (111 e 3) is opposite to the first side plate (111 e 1), the second side plate (111 e 3) of the first protruding portion (111 e) is opposite to the second side plate (111 e 3) of the second protruding portion (111 g), so as to form the escape opening (111 d), and a height of the second side plate (111 e 3) is smaller than a height of the first side plate (111 e 1), so that the first protruding portion (111 e) and the second protruding portion (111 e) are opposite to the second side plate (111 e 3) to form a plugging groove.
  9. 9. The battery assembly according to claim 1, wherein the at least one first cell (310) comprises a first sub-cell and a second sub-cell which are arranged at intervals, the protection plate (200) comprises a first strip-shaped plate (220) and a second strip-shaped plate (230) which are connected, the first strip-shaped plate (220) is arranged between the first sub-cell and the second sub-cell, the first connection region (240) is arranged in the first strip-shaped plate (220), the tab (311) of the first sub-cell and the tab (311) of the second sub-cell are electrically connected with the first connection region (240), and the tab (311) of the second sub-cell and the tab (311) of the first strip-shaped plate (220) are arranged in a staggered manner along the length direction of the first strip-shaped plate (220), the second strip-shaped plate (230) and the first cell (310) are arranged side by side along the extension direction of the first strip-shaped plate (220), and a part of the second strip-shaped plate (230) extends to a position close to the second strip-shaped plate (320), and the second connection region (250) is arranged in the second connection region (230).
  10. 10. The battery assembly of claim 1, wherein the first plug terminal (110), the second plug terminal (120) and the third plug terminal (210) are each at least two in number, each comprising a positive terminal and a negative terminal arranged at intervals, The adapter plate (100) comprises a plate main body (130), a first plug-in terminal (110) and a second plug-in terminal (120), the plate main body (130) comprises a first strip-shaped portion (131) and a second strip-shaped portion (132) which are connected, the extending direction of the first strip-shaped portion (131) is perpendicular to the extending direction of the second strip-shaped portion (132), the first plug-in terminal (110) is arranged on the first strip-shaped portion (131), the first strip-shaped portion (131) is located between the first electric core (310) and the second electric core (320), the second plug-in terminal (120) is arranged on the second strip-shaped portion (132), and the positive terminal and the negative terminal of the second plug-in terminal (120) are located on two opposite sides of the first strip-shaped portion (131) respectively.

Description

Battery assembly Technical Field The application belongs to the technical field of battery design, and particularly relates to a battery assembly. Background The use of rechargeable batteries is one of the advantages of notebook computers over desktop computers, which can greatly facilitate use by users in a variety of environments. Because the portability of the notebook computer is better, the notebook computer can work only by means of the battery, so the market demand of the notebook computer is increasing, however, as the notebook computer is pursuing light weight, the battery is smaller, and the battery is not electrically connected with the protection board directly, and the adapter plate is needed for transferring. At present, as the energy density of the battery core is higher and higher, the capacity of the battery is larger and larger, and in order to improve the charging efficiency of the battery, the adapter plate needs to have stronger current passing capability, so that the width of the adapter plate is generally increased. However, due to the limitation of the size of the battery, it is not possible to provide enough space to increase the width of the interposer, and thus consideration is required to increase the thickness direction of the interposer, but the increase in the thickness of the interposer may cause poor welding of the interposer with the battery tab and the protection plate, thereby reducing the safety and reliability of the battery. Disclosure of utility model The embodiment of the application aims to provide a battery assembly, which can solve the problem that the current capacity of an adapter plate of the battery assembly is weak. In order to solve the technical problems, the application is realized as follows: The embodiment of the application provides a battery assembly, which comprises a protection plate, at least one adapter plate, at least one first electric core and at least one second electric core, wherein the first electric core and the second electric core are arranged at intervals, a tab of the first electric core is electrically connected with a first connecting area of the protection plate, the adapter plate is provided with a first plug-in terminal and a second plug-in terminal which are arranged at intervals, the tab of the second electric core is in plug-in fit with the first plug-in terminal and are electrically connected with the first plug-in terminal, a second connecting area of the protection plate is provided with a third plug-in terminal, the third plug-in terminal is in plug-in fit with the second plug-in terminal and is electrically connected with the second plug-in terminal, so that the tab of the second electric core is electrically connected with the protection plate through the adapter plate. In the embodiment of the application, the tab of the first electric core is electrically connected with the first connecting area of the protection board, the adapter board is provided with a first plug-in terminal and a second plug-in terminal which are arranged at intervals, the tab of the second electric core is in plug-in fit with the first plug-in terminal and is electrically connected with the first plug-in terminal, the second connecting area of the protection board is provided with a third plug-in terminal, and the third plug-in terminal is in plug-in fit with the second plug-in terminal and is electrically connected with the second plug-in terminal, so that the tab of the second electric core is electrically connected with the second end of the protection board through the adapter board. According to the scheme, the electric connection mode between the adapter plate and the electrode lug and the protection plate is changed from a welding mode to an inserting matching mode, so that the influence of the thickness of the adapter plate on the welding yield is not required to be considered, the thickness of the adapter plate can be increased according to actual needs, the through-flow capacity of the adapter plate is improved, and the quick charge requirement of a high-capacity battery assembly is met. Drawings Fig. 1 is a schematic view of a battery assembly according to an embodiment of the present application; FIG. 2 is an enlarged view of a portion of the structure shown in FIG. 1; Fig. 3 is a schematic view illustrating a structure of a battery assembly according to an embodiment of the present application at another view angle; FIG. 4 is an enlarged view of a portion of the structure shown in FIG. 3; Fig. 5 is a schematic structural diagram of a protection board and an adapter board according to an embodiment of the present application; fig. 6 to fig. 7 are schematic structural views of an interposer according to an embodiment of the present application at different viewing angles; fig. 8 is a schematic structural view of a protection plate according to an embodiment of the present application; Fig. 9 to 11 are schematic structural views of a thir