BATTERY SAMPLING ASSEMBLY, BATTERY AND MANUFACTURING METHOD THEREOF, AND ELECTRIC DEVICE
A battery sampling assembly includes a carrier part, a first sampling part, and a second sampling part. The first sampling part and the second sampling part are fixed to the carrier part, the first sampling part is configured to sample a first structure of the battery, and the second sampling part is configured to sample a second structure of the battery.
1 . A battery sampling assembly, comprising:
a carrier part;
a first sampling part; and
a second sampling part;
wherein:
the first sampling part and the second sampling part are fixed to the carrier part;
the first sampling part is configured to sample a first structure of a battery; and
the second sampling part is configured to sample a second structure of the battery.
2 . The battery sampling assembly according to claim 1 , wherein the battery comprises a plurality of battery packs, and the first structure comprises two poles of opposite polarities of adjacent battery packs.
3 . The battery sampling assembly according to claim 1 , wherein the battery comprises a plurality of battery packs, and the second structure comprises a housing of a battery cell in a battery pack.
4 . The battery sampling assembly according to claim 1 , wherein the first sampling part is one of N first sampling parts and the second sampling part is one of N second sampling parts, wherein N is a positive integer equal to or greater than 2.
5 . The battery sampling assembly according to claim 4 , wherein:
the n-th first sampling part is configured to sample a first pole of the 2n-th battery pack and a second pole of the (2n−1)-th battery pack; and
the n-th second sampling part is configured to sample a housing of the (2n−1)-th battery pack;
wherein n is a positive integer less than or equal to N.
6 . The battery sampling assembly according to claim 4 , wherein:
the n-th first sampling part is configured to sample a first pole of the 2n-th battery pack and a second pole of the (2n+1)-th battery pack; wherein the second pole and the first pole are opposite in polarity; and
the n-th second sampling part is configured to sample a housing of a battery cell in the 2n-th battery pack;
wherein n is a positive integer less than or equal to N.
7 . The battery sampling assembly according to claim 1 , further comprising:
a circuit board;
wherein the circuit board is electrically connected to the first sampling part through a first line and electrically connected to the second sampling part through a second line.
8 . The battery sampling assembly according to claim 7 , wherein the circuit board is a flexible printed circuit board, and the flexible printed circuit board and the carrier part are integrally formed into an integrated structure.
9 . The battery sampling assembly according to claim 7 , wherein the first sampling part comprises:
a first metal sheet, electrically connected to the first line; and
a second metal sheet, laser welded to the first metal sheet and used for electrical connection with two poles of opposite polarities of adjacent battery packs.
10 . The battery sampling assembly according to claim 1 , further comprising:
a connector;
wherein the connector connects the circuit board and the carrier part.
11 . The battery sampling assembly according to claim 1 , wherein the carrier part comprises:
a first opening, aligned with a connection region of the first sampling part; and
a second opening, aligned with a connection region of the second sampling part.
12 . The battery sampling assembly according to claim 1 , wherein the carrier part comprises a hot pressing film, and the hot pressing film is used to fix, by hot pressing, the first sampling part and the second sampling part.
13 . The battery sampling assembly according to claim 12 , wherein the hot pressing film comprises:
a first film layer and a second film layer; wherein the first sampling part and the second sampling part are hot pressed between the first film layer and the second film layer.
14 . The battery sampling assembly according to claim 1 , wherein:
one surface of the carrier part is provided with an adhesive layer and a protective layer covering a surface of the adhesive layer; and
the adhesive layer is used to fix the battery sampling assembly.
15 . A battery, comprising:
the battery sampling assembly according to claim 1 .
16 . The battery according to claim 15 , further comprising:
a battery pack, comprising two battery cells connected in series;
wherein the battery pack is electrically connected to the battery sampling assembly.
17 . The battery according to claim 16 , wherein:
the battery pack is one of 2S battery packs of the battery, wherein S is a positive integer greater than or equal to 2;
the battery sampling assembly comprises a first battery sampling assembly and a second battery sampling assembly;
the first battery sampling assembly comprises S first sampling parts and S second sampling parts;
the second battery sampling assembly comprises S−1 first sampling parts and S−1 second sampling parts; and
the second sampling parts of the first battery sampling assembly each are electrically connected to a housing of an odd-numbered battery pack, and the second sampling parts of the second battery sampling assembly each are electrically connected to a housing of an even-numbered battery pack.
18 . An electric device, comprising:
the battery according to claim 15 .
19 . A method for manufacturing battery sampling assembly, comprising:
arranging a first sampling part and a second sampling part; and
fixing, by hot pressing, the first sampling part and the second sampling part to a carrier part.
20 . The method according to claim 19 , further comprising, before fixing the first sampling part and the second sampling part to the carrier part:
electrically connecting a first line of a circuit board and the first sampling part; and
electrically connecting a second line of the circuit board and the second sampling part.