Battery core unit, battery and vehicle

Abstract

A battery core unit, a battery, and a vehicle are disclosed, and the battery core unit includes a battery core row and a sampling structure. The battery core row includes a plurality of battery core groups and at least one fixed support member, the plurality of battery core groups are arranged along a first direction and connected in series, and a fixed support member is provided at an electrical connection point between any two adjacent battery core groups. The sampling structure is electrically connected to the plurality of battery core groups, and a notch is provided in the sampling structure, and a limiting strip is provided in the notch, and the limiting strip is connected to an inner wall of the notch. The fixed support member is provided with a first protrusion and a second protrusion, the first protrusion and the second protrusion are located in the notch and spaced apart to form a spacing region, and the limiting strip is fitted into the spacing region while being positionally limited.

Description

[Technical Field]

[0001] (CROSS-REFERENCE TO RELATED APPLICATIONS) This application is based on and claims priority from a Chinese patent application filed on November 24, 2021, bearing application number 202122903216.7, the entire contents of which are incorporated herein by reference.

[0002] The present application relates to the technical field of batteries, and in particular to a battery core unit, a battery, and a vehicle. [Background technology]

[0003] In the prior art, a battery has multiple battery cores connected in series to improve output voltage, and a sampling harness is provided inside the battery to collect signals such as the voltage and / or temperature of each battery core to understand the operating status of each battery core. However, because the sampling harness is not fixed, if the battery vibrates for a long period of time, the sampling harness will shake and the connection with the battery core will easily loosen, making it difficult to collect relevant information about the battery cores in a timely manner. Summary of the Invention [Problem to be solved by the invention]

[0004] The present application aims to solve at least one of the technical problems in the prior art, and to this end, the present application provides a battery core unit, a battery, and a vehicle that are advantageous in improving the reliability of the connection between the sampling structure and the battery core. [Means for solving the problem]

[0005] In one aspect, a battery core unit according to the present application includes a battery core row and a sampling structure, the battery core row includes a plurality of battery core groups and at least one fixed support member, the plurality of battery core groups are arranged along a first direction and connected in series, and the fixed support member is provided at an electrical connection point between any two adjacent battery core groups; The sampling structure is electrically connected to the plurality of battery core groups, the sampling structure has a notch, a limiting strip is provided within the notch, and the limiting strip is connected to the inner wall of the notch, the fixed support member has a first protrusion and a second protrusion, the first protrusion and the second protrusion are located within the notch and are spaced apart to form a spacing area, and the limiting strip is fitted into the spacing area in a position-restricting manner.

[0006] In the battery core unit according to the embodiment of the present application, the sampling structure has a notch, a limiting strip is provided within the notch, the fixed support member has a first protrusion and a second protrusion, the first protrusion and the second protrusion are spaced apart to form a gap area, and the limiting strip is fitted into the gap area with its position restricted. In this way, the sampling structure can be fitted into the fixed support member with its position restricted by the limiting strip, which is advantageous for reducing the vibration of the sampling structure and improving the reliability of the connection between the sampling structure and the battery core.

[0007] In some embodiments, the opening of the notch is located on one side along a first direction of the sampling structure, the first protrusion and the second protrusion are arranged at a distance from each other along the first direction, and two inner walls of the notch facing each other along the second direction are connected to the limiting strip.

[0008] In some embodiments, the sampling structure is provided with a plurality of collecting terminals, each of which is electrically connected to a corresponding one of the battery core groups, the plurality of collecting terminals being divided into a first collecting terminal, a second collecting terminal, and a third collecting terminal, the first collecting terminal and the second collecting terminal being arranged on opposite ends of the battery core row along the first direction, the third collecting terminal being located between the first collecting terminal and the second collecting terminal, and the third collecting terminal being provided on the outer edge of the sampling structure and located on one side of the notch.

[0009] In some embodiments, the battery core unit includes at least two of the battery core rows, the at least two battery core rows are arranged along a second direction, and the battery core rows have first and second ends located on opposite sides along the first direction, the at least two battery core rows include a first battery core row and a second battery core row, and the first battery core row and the second battery core row are connected in series via two battery core groups located at their respective first ends; the first battery core row and the second battery core row each include M battery core groups arranged along the first direction, where M is an integer greater than or equal to 2; the number of collecting terminals is 2M+1, including one first collecting terminal, two second collecting terminals, and 2M-2 third collecting terminals, the first collecting terminal being provided at a first end of the battery core row and the two second collecting terminals being provided at a second end of the battery core row; the sampling structure has first and second sides opposite to each other along the second direction, and the two second collecting terminals and the 2M-2 third collecting terminals are respectively disposed on the first and second sides of the sampling structure; The two battery core groups located at the first ends of the first battery core row and the second battery core row are both electrically connected to the first collecting terminal, the two battery core groups located at the second ends of the first battery core row and the second battery core row are electrically connected to the two second collecting terminals in a one-to-one correspondence, and the M-1 third collecting terminals located on the same side of the sampling structure are each provided between two corresponding adjacent battery core groups and electrically connected to the two adjacent battery core groups.

[0010] In some embodiments, two notches are provided in the second direction, and two first protrusions and two second protrusions are provided, The first protrusion and the second protrusion are provided in the corresponding notches, and the limiting strip is provided in each of the notches, and the limiting strip is fitted into the corresponding spacing region while being positionally restricted.

[0011] In some embodiments, the sampling structure is adhesively secured to a stationary support member.

[0012] In some embodiments, any two adjacent battery core groups are connected via a conductive connecting member, and the fixing support member is provided between any two adjacent battery core groups, and the fixing support member fixes the conductive connecting member; the battery core group includes at least two battery cores connected in parallel, the battery cores have positive electrode tabs and negative electrode tabs, the positive electrode tabs and the negative electrode tabs are disposed on opposite ends of the battery cores along the first direction; Of any two adjacent battery core groups, the positive electrode tabs of all the battery cores in one battery core group are connected to the negative electrode tabs of all the battery cores in the other battery core group via the conductive connecting member.

[0013] In some embodiments, the fixed support member includes two first support members positioned on opposite sides along the first direction; the conductive connection member includes two electrically connected conductive sheets, the two conductive sheets being fixed to the two first support members in one-to-one correspondence; Of any two adjacent battery core groups, the positive electrode tabs of all the battery cores in one battery core group pass through the corresponding first support member and are connected to the conductive sheet on the first support member, and the negative electrode tabs of all the battery cores in the other battery core group pass through the corresponding first support member and are connected to the conductive sheet on the first support member.

[0014] In some embodiments, the sampling structure is provided on one side of the battery core row along a third direction, and the conductive sheet includes a main body portion and a first folded portion. the main body portions of the two conductive sheets are located on opposite sides of the two first support members, and the main body portions are electrically connected to the positive electrode tabs or the negative electrode tabs of all of the battery cores in the corresponding battery core group; The first bent portion is provided at one end of the main body portion close to the sampling structure, is located on one side of the corresponding first support member along the third direction, and is electrically connected to the sampling structure.

[0015] In some embodiments, the conductive sheet further includes a second folded portion, the second folded portion being provided on one side of the main body portion along the second direction and located on one side of the corresponding first support member along the second direction, and defining an escape hole together with the main body portion, the escape hole allowing a positive electrode tab or a negative electrode tab of at least one battery core in the corresponding battery core group to escape; The conductive connection member further includes a first connection sheet, and the second folded portions of the two conductive sheets are electrically connected via the first connection sheet.

[0016] In some embodiments, the battery core unit includes at least two of the battery core rows, the at least two battery core rows are arranged along a second direction, and the battery core rows have first and second ends located on opposite sides along the first direction, the at least two battery core rows include a first battery core row and a second battery core row, and the first battery core row and the second battery core row are connected in series via two battery core groups located at their respective first ends; The two opposing battery core groups in the first battery core row and the second battery core row correspond to the same first support member, and two conductive sheets are provided on the first support member at an interval, and each conductive sheet is electrically connected to the corresponding battery core group.

[0017] In some embodiments, the two battery core groups connecting the first battery core row and the second battery core row in series are a first battery core group and a second battery core group, respectively; The battery core unit further includes a second support member that fixes a second connection sheet, the second support member being located at a first end of the first battery core row, and the positive electrode tabs of all the battery cores in one of the first and second battery core groups and the negative electrode tabs of all the battery cores in the other battery core group are electrically connected via the second connection sheet, passing through the second support member.

[0018] In some embodiments, the battery core unit further includes a third support member, and two third connection sheets are provided at an interval on the third support member, the third support member is located at a second end of the first battery core row, the two battery core groups located at the second ends of the first battery core row and the second battery core row are a third battery core group and a fourth battery core group, respectively, and the positive electrode tabs of all the battery cores in one of the third battery core group and the fourth battery core group are electrically connected via one of the third connection sheets that penetrate the third support member, and the negative electrode tabs of all the battery cores in the other battery core group are electrically connected via the other of the third connection sheets that penetrate the third support member.

[0019] In another aspect, the present application further provides a battery including a housing and a battery core unit according to any of the above examples disposed within the housing.

[0020] In yet another aspect, the present application further provides a vehicle including the battery core unit according to any of the above embodiments or the battery according to any of the above embodiments.

[0021] In the battery of the present application, the sampling structure can be fitted to the fixed support member in a position restricted by the restricting strip, which is advantageous in reducing the vibration of the sampling structure and improving the reliability of the connection between the sampling structure and the battery core.

[0022] Additional aspects and advantages of the present application will be set forth in part in the description that follows, and in part will be obvious from the description, or may be learned by practice of the present application. [Brief explanation of the drawings]

[0023] The above and / or additional aspects and advantages of the present application will become more apparent and easier to understand by describing examples with reference to the following drawings.

[0024] [Figure 1] 1 is a schematic diagram of a battery according to one embodiment of the present application. [Figure 2] FIG. 2 is a schematic diagram of the battery in FIG. 1 with the housing omitted. [Figure 3] FIG. 3 is a partial enlarged view of part A in FIG. 2. [Figure 4] FIG. 3 is an exploded view of FIG. 2. [Figure 5] FIG. 5 is a partial enlarged view of part B in FIG. [Figure 6] FIG. 5 is a partial enlarged view of part C in FIG. [Figure 7] FIG. 10 is a schematic diagram illustrating a configuration in which two adjacent battery core groups in the same battery core row are connected to a first support member and a conductive sheet. [Figure 8] FIG. 8 is an exploded view of FIG. [Figure 9] FIG. 9 is an exploded view of the structure surrounded by part D in FIG. 8. [Figure 10] FIG. 9 is an exploded view of the structure surrounded by part E in FIG. 8. [Figure 11] FIG. 10 is a partial schematic configuration diagram of a battery core unit, showing connections between a first battery core group, a second battery core group, a second connection sheet, and a second support member. [Figure 12] 1 is a schematic diagram of a vehicle according to an embodiment of the present application; DETAILED DESCRIPTION OF THE INVENTION

[0025] The following detailed description of the embodiments of the present application is provided in the accompanying drawings, in which the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are merely illustrative and are intended to help interpret the present application, and should not be construed as limiting the present application.

[0026] In the description of this application, the orientations or positional relationships indicated by terms such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial direction," "radial direction," and "circumferential direction" are based on the orientations or positional relationships shown in the drawings, and are intended merely to facilitate and simplify the description of this application, and do not indicate or suggest that the devices or parts shown must have a specific orientation, be configured, or operate in a specific orientation, and therefore should not be understood as limiting this application.

[0027] As shown in FIGS. 1 to 6 , a battery core unit 100 according to the present application includes a battery core row 101 and a sampling structure 102. The battery core row 101 includes a plurality of battery core groups 103 and at least one fixed support member 104. The plurality of battery core groups 103 are arranged along a first direction and connected in series, and a fixed support member 104 is provided at the electrical connection point between any two adjacent battery core groups 103. The sampling structure 102 is electrically connected to the plurality of battery core groups 103. The sampling structure 102 is provided with a notch 106. A limiting strip 107 is provided within the notch 106. The limiting strip 107 is connected to the inner wall of the notch 106. The fixed support member 104 is provided with a first protrusion 108 and a second protrusion 109. The first protrusion 108 and the second protrusion 109 are positioned within the notch 106 and spaced apart to form a spacing region 110. The limiting strip 107 is fitted into the spacing region 110 to restrict its position. The first direction may be the left-right direction in FIG. 2 or may coincide with the longitudinal direction of the battery core row 101 or the battery 1000. The battery core group 103 includes at least one battery core 1031. When the battery core group 103 includes multiple battery cores 1031, the battery cores 1031 are connected in parallel. The battery core 1031 may be a bare battery core or a pouch battery core.

[0028] It should be noted that the position-restricting engagement is understood to mean that opposite sides of the limiting strip 107 directly or indirectly abut against the first protrusion 108 and the second protrusion 109 so that the limiting strip 107 is position-restrictedly engaged in the spacing region 110. In the battery core unit 100 according to the present application, the sampling structure 102 is provided with a notch 106, the limiting strip 107 is provided within the notch 106, the fixed support member 104 is provided with the first protrusion 108 and the second protrusion 109, the first protrusion 108 and the second protrusion 109 are spaced apart to form the spacing region 110, and the limiting strip 107 is position-restrictedly engaged in the spacing region 110. In this way, the sampling structure 102 can be position-restrictedly engaged in the fixed support member 104 by the limiting strip 107, which is advantageous for reducing vibration of the sampling structure 102 and improving the reliability of the connection between the sampling structure 102 and the battery core 1031.

[0029] In some embodiments, fixed support member 104, first protrusion 108, and second protrusion 109 are a unitary molded part, for example, a unitary injection molded part.

[0030] In some embodiments, the sampling structure 102 may be a flexible circuit board or a flexible flat cable.

[0031] In some embodiments, as shown in FIGS. 4 to 6 , the opening of the notch 106 is located on one side along the first direction of the sampling structure 102. The first protrusion 108 and the second protrusion 109 are spaced apart along the first direction, and two inner walls of the notch 106 facing each other along the second direction are connected to a limiting strip 107. In this way, providing the limiting strip 107 alleviates the problem of deformation on the opening side of the notch 106 and makes it possible to maintain the shape of the notch 106 as much as possible. The second direction may be the front-to-rear direction in FIG. 4 or may coincide with the thickness direction of the battery core row 101 or the battery 1000.

[0032] In some embodiments, as shown in FIGS. 2 to 6 , the sampling structure 102 is provided with a plurality of collecting terminals 111, and each collecting terminal 111 is electrically connected to a corresponding battery core group 103. The plurality of collecting terminals 111 are divided into a first collecting terminal 112, a second collecting terminal 113, and a third collecting terminal 114, and the first collecting terminal 112 and the second collecting terminal 113 are arranged on opposite ends of the battery core row 101 along the first direction, and the third collecting terminal 114 is located between the first collecting terminal 112 and the second collecting terminal 113. The third collecting terminal 114 is provided on the outer edge of the sampling structure 102 and on one side of the notch 106, which facilitates connection between the third collecting terminal 114 and the battery core group 103. In addition, by providing the limiting strip 107, the problem of the opening of the notch 106 being pulled too much when the third collecting terminal 114 and the battery core group 103 are connected is improved, and the reliability of the connection between the third collecting terminal 114 and the battery core group 103 can be improved.

[0033] In some embodiments, as shown in FIGS. 2 and 4 , the battery core unit 100 includes at least two battery core rows 101. The at least two battery core rows 101 are arranged along the second direction, and each battery core row 101 has a first end 127 and a second end 128 located on opposite sides along the first direction. The at least two battery core rows 101 include a first battery core row 115 and a second battery core row 116, which are connected in series via two battery core groups 103 located at their respective first ends 127. The first battery core row 115 and the second battery core row 116 each include M battery core groups 103 arranged along the first direction, where M≧2 and is an integer. The number of collecting terminals 111 is 2M+1, including one first collecting terminal 112, two second collecting terminals 113, and 2M−2 third collecting terminals 114. The first collecting terminal 112 is provided at a first end 127 of the battery core row 101, and two second collecting terminals 113 are provided at a second end 128 of the battery core row 101. The sampling structure 102 has a first side 129 and a second side 130 located on opposite sides along the second direction, and the two second collecting terminals 113 and 2M-2 third collecting terminals 114 are uniformly arranged on the first side 129 and the second side 130 of the sampling structure 102, respectively. The two battery core groups 103 located at the first ends 127 of the first battery core row 115 and the second battery core row 116 are both electrically connected to the first collecting terminal 112, the two battery core groups 103 located at the second ends 128 of the first battery core row 115 and the second battery core row 116 are electrically connected to the two second collecting terminals 113 in a one-to-one correspondence, and M-1 third collecting terminals 114 located on the same side of the sampling structure 102 are each arranged between two corresponding adjacent battery core groups 103 and electrically connected to the two adjacent battery core groups 103.

[0034] 2 and 4 , the first battery core row 115 and the second battery core row 116 are arranged in a front-to-rear direction, and each of the first battery core row 115 and the second battery core row 116 includes four battery core groups 103 arranged in a left-to-right direction, and there are nine collecting terminals 111, including one first collecting terminal 112, two second collecting terminals 113, and six third collecting terminals 114. The two second collecting terminals 113 and the six third collecting terminals 114 are uniformly arranged on a first side 129 and a second side 130 of the sampling structure 102, respectively. The two battery core groups 103 located at the leftmost ends in the first battery core row 115 and the second battery core row 116 are electrically connected to the first collecting terminal 112, and the two battery core groups 103 located at the rightmost ends in the first battery core row 115 and the second battery core row 116 are electrically connected to the two second collecting terminals 113 in a one-to-one correspondence. The three third collecting terminals 114 located on the first side 129 of the sampling structure 102 are respectively disposed between two corresponding adjacent battery core groups 103 and electrically connected to the two adjacent battery core groups 103; that is, along the left-to-right direction, the first third collecting terminal 114 is located between the first battery core group 103 and the second battery core group 103 and electrically connected to the two battery core groups 103; the second third collecting terminal 114 is located between the second battery core group 103 and the third battery core group 103 and electrically connected to the two battery core groups 103; and the third third collecting terminal 114 is located between the third battery core group 103 and the fourth battery core group 103 and electrically connected to the two battery core groups 103. The connection manner between the three third collecting terminals 114 located on the second side 130 of the sampling structure 102 and the battery core groups 103 is similar to the connection manner between the three third collecting terminals 114 located on the first side 129 of the sampling structure 102 and the battery core groups 103, and therefore will not be described here. In addition, the number of battery core groups 103 included in the first battery core row 115 and the second battery core row 116 may be set according to actual needs, for example, two or three.

[0035] It should be noted that the number of collecting terminals 111 may be set according to actual needs and is not listed here. For example, in another embodiment, the collecting terminals 111 may be 2M+2, including two first collecting terminals 112, two second collecting terminals 113, and 2M-2 third collecting terminals 114, and the two battery core groups 103 located at the first ends 127 of the first battery core row 115 and the second battery core row 116 are electrically connected to the two first collecting terminals 112 in one-to-one correspondence.

[0036] In another embodiment, the battery core unit 100 may include one battery core row 101. The battery core row 101 has a first end 127 and a second end 128 located on opposite sides along the first direction, with the first collecting terminal 112 located at the first end 127 of the battery core row 101 and the second collecting terminal 113 located at the second end 128 of the battery core row 101. The battery core row 101 includes N battery core groups 103 arranged along the first direction, where N≧2 and is an integer. There are N+1 collecting terminals 111, including one first collecting terminal 112, one second collecting terminal 113, and N−1 third collecting terminals 114. The first collecting terminal 112 is electrically connected to the battery core group 103 located at the first end 127 of the battery core row 101, the second collecting terminal 113 is electrically connected to the battery core group 103 located at the second end 128 of the battery core row 101, and the N-1 third collecting terminals 114 are respectively provided between and electrically connected to two corresponding adjacent battery core groups 103. For example, the battery core row 101 includes four battery core groups 103 arranged from left to right, and there are five collecting terminals 111, including one first collecting terminal 112, one second collecting terminal 113, and three third collecting terminals 114. The first collecting terminal 112 is electrically connected to the battery core group 103 located at the leftmost end, and the second collecting terminal 113 is electrically connected to the battery core group 103 located at the rightmost end. The three third collecting terminals 114 are arranged between two corresponding adjacent battery core groups 103 along the left-to-right direction and are electrically connected to the two adjacent battery core groups 103. The number of collecting terminals 111 may be set according to actual needs. For example, in another embodiment, the number of collecting terminals 111 may be N+2, including one first collecting terminal 112, one second collecting terminal 113, and N third collecting terminals 114. The two third collecting terminals 114 are electrically connected to the two adjacent battery core groups 103 in one-to-one correspondence.

[0037] 4 to 6 , in the second direction, two notches 106 are provided, and two first protrusions 108 and two second protrusions 109 are provided. The first protrusions 108 and the second protrusions 109 are provided in the corresponding notches 106, and a limiting strip 107 is provided in each notch 106, and the limiting strip 107 is fitted into the corresponding spacing region 110 to restrict its position. This arrangement is advantageous in reducing movement of the sampling structure 102 and improving the reliability of the connection between the sampling structure 102 and the battery core group 103.

[0038] In some embodiments, the sampling structure 102 is adhesively fixed to the fixed support member 104. In this manner, fixedly connecting the sampling structure 102 to the fixed support member 104 is advantageous for reducing movement of the sampling structure 102 and for improving the reliability of the connection between the sampling structure 102 and the battery core array 101. Specifically, a structural adhesive is provided on one side of the sampling structure 102 in the thickness direction, and the sampling structure 102 is adhesively fixed to the fixed support member 104 by the structural adhesive.

[0039] In some embodiments, as shown in FIGS. 2 and 7 to 10 , any two adjacent battery core groups 103 are connected via a conductive connecting member 117, and a fixing support member 104 is provided between any two adjacent battery core groups 103, and the fixing support member 104 fixes the conductive connecting member 117. The battery core group 103 includes at least two battery cores 1031 connected in parallel, and each battery core 1031 has a positive electrode tab 1032 and a negative electrode tab 1033, and the positive electrode tab 1032 and the negative electrode tab 1033 are arranged on opposite ends of the battery core 1031 along the first direction. Of any two adjacent battery core groups 103, the positive electrode tabs 1032 of all the battery cores 1031 in one battery core group 103 are connected to the negative electrode tabs 1033 of all the battery cores 1031 in the other battery core group 103 via the conductive connecting member 117. As shown in FIGS. 7 to 9 , from left to right, the first battery core group 103 and the second battery core group 103 each include two battery core groups 103 connected in parallel, and the positive electrode tabs 1032 of the two battery cores 1031 included in the first battery core group 103 are connected to the negative electrode tabs 1033 of the two battery cores 1031 included in the second battery core group 103 via conductive connecting members 117. Of course, the negative electrode tabs 1033 of the two battery cores 1031 included in the first battery core group 103 may also be connected to the positive electrode tabs 1032 of the two battery cores 1031 included in the second battery core group 103 via the conductive connecting members 117. Furthermore, the battery core group 103 may further include three or more battery cores 1031 connected in parallel.

[0040] 7 to 10 , in some embodiments, the fixed support member 104 includes two first support members 118 positioned on opposite sides along the first direction. The conductive connection member 117 includes two electrically connected conductive sheets 119, and the two conductive sheets 119 are fixed to the two first support members 118 in a one-to-one correspondence. Of any two adjacent battery core groups 103, the positive electrode tabs 1032 of all the battery cores 1031 in one battery core group 103 penetrate the corresponding first support member 118 and are connected to the conductive sheet 119 on the first support member 118, and the negative electrode tabs 1033 of all the battery cores 1031 in the other battery core group 103 penetrate the corresponding first support member 118 and are connected to the conductive sheet 119 on the first support member 118. As shown in FIGS. 7 to 9 , from left to right, the first conductive sheet 119 is fixed to the first first support member 118, and the second conductive sheet 119 is fixed to the second first support member 118. The positive electrode tabs 1032 of all battery cores 1031 included in the first battery core group 103 penetrate the first first support member 118 and are connected to the conductive sheet 119 on the first support member 118. The negative electrode tabs 1033 of all battery cores 1031 included in the second battery core group 103 penetrate the second first support member 118 and are connected to the conductive sheet 119 on the first support member 118. Of course, the negative electrode tabs 1033 of all battery cores 1031 included in the first battery core group 103 may also penetrate the first first support member 118 and be connected to the conductive sheet 119 on the first support member 118. The positive electrode tabs 1032 of all the battery cores 1031 included in the second battery core group 103 pass through the second first support member 118 and are connected to the conductive sheet 119 on the first support member 118 .

[0041] In some embodiments, as shown in FIGS. 4 to 8 , the sampling structure 102 is provided on one side of the battery core row 101 along the third direction, and the conductive sheet 119 includes a main body portion 1191 and a first folded portion 1192. The main body portions 1191 of the two conductive sheets 119 are located on opposite sides of the two first support members 118, and the main body portions 1191 are electrically connected to the positive electrode tabs 1032 or the negative electrode tabs 1033 of all the battery cores 1031 in the corresponding battery core group 103. The first folded portion 1192 is provided at one end of the main body portion 1191 close to the sampling structure 102, is located on one side of the corresponding first support member 118 along the third direction, and is electrically connected to the sampling structure 102. Specifically, the first folded portion 1192 is connected to the third collecting terminal 114. Providing the first bent portion 1192 on one side of the first support member 118 along the third direction is advantageous for connecting the first bent portion 1192 to the sampling structure 102. The third direction may be the up-down direction in FIG. 4 or may coincide with the width direction of the battery core row 101 or the battery 1000. Of course, in other embodiments, the first direction may coincide with the width direction of the battery core row 101 or the battery 1000, and the third direction may coincide with the length direction of the battery core row 101 or the battery 1000.

[0042] Furthermore, the conductive sheet 119 further includes a second folding portion 1193, which is provided on one side of the main body portion 1191 along the second direction and is located on one side of the corresponding first support member 118 along the second direction, and together with the main body portion 1191 defines an escape hole 131, which allows the positive electrode tab 1032 or the negative electrode tab 1033 of at least one battery core 1031 of the corresponding battery core group 103 to escape. For example, the battery core group 103 includes two battery cores 1031 connected in parallel, and the positive electrode tabs 1032 or negative electrode tabs 1033 of the two parallel-connected battery cores 1031 both extend from the escape hole 131, or the positive electrode tab 1032 of one of the battery cores 1031 extends from the escape hole 131 and the positive electrode tab 1032 of the other battery core 1031 extends directly from the first support member 118, or the negative electrode tab 1033 of one of the battery cores 1031 extends from the escape hole 131 and the negative electrode tab 1033 of the other battery core 1031 extends directly from the first support member 118.

[0043] Furthermore, the conductive connection member 117 further includes a first connection sheet 120, and the second folded portions 1193 of the two conductive sheets 119 are electrically connected via the first connection sheet 120. Providing the second folded portion 1193 on one side of the first support member 118 along the second direction is advantageous for connecting the first connection sheet 120 and the second folded portion 1193.

[0044] In some embodiments, the conductive sheet 119 is fastened to the corresponding first support member 118. Specifically, a snap fit is provided on one side of the first support member 118 along the second direction, a locking hole is provided in the conductive sheet 119, and the snap fit is locked into the locking hole to secure the conductive sheet 119 to the first support member 118. Of course, in other embodiments, the conductive sheet 119 may be fastened to the corresponding first support member 118 in a screw connection manner.

[0045] 2 to 4, the battery core unit 100 includes at least two battery core rows 101, which are arranged along the second direction, and each battery core row 101 has a first end 127 and a second end 128 located on opposite sides along the first direction. The at least two battery core rows 101 include a first battery core row 115 and a second battery core row 116, which are connected in series via two battery core groups 103 located at their respective first ends 127. Of course, the number of battery core rows 101 may be three or more, i.e., the number may be set according to actual needs.

[0046] 2, 7, and 8, two opposing battery core groups 103 in the first battery core row 115 and the second battery core row 116 correspond to the same first support member 118, and two conductive sheets 119 are provided on the first support member 118 at an interval, and each conductive sheet 119 is electrically connected to the corresponding battery core group 103. As shown in FIGS. 8 and 9, the two battery core groups 103 located at the left end along the left-to-right direction correspond to the same first support member 118, and the two battery core groups 103 are arranged along the front-to-rear direction, and the conductive sheets 119 on the first support member 118 are electrically connected to the corresponding battery core group 103. The two battery core groups 103 located at the right end correspond to the same first support member 118, and the two battery core groups 103 are arranged in a front-to-rear direction, and the conductive sheet 119 on the first support member 118 is electrically connected to the corresponding battery core group 103.

[0047] 2 and 11 , the two battery core groups 103 connecting the first battery core row 115 and the second battery core row 116 in series are the first battery core group 121 and the second battery core group 122, respectively. The battery core unit 100 further includes a second support member 124 that fixes the second connection sheet 123, and the second support member 124 is located at a first end 127 of the first battery core row 115. The positive electrode tabs 1032 of all the battery cores 1031 in one of the first battery core group 121 and the second battery core group 122 and the negative electrode tabs 1033 of all the battery cores 1031 in the other battery core group 103 are electrically connected via the second connection sheet 123 through the second support member 124. 11 , the negative electrode tabs 1033 of all the battery cores 1031 in the first battery core group 121 and the positive electrode tabs 1032 of all the battery cores 1031 in the second battery core group 122 are electrically connected through the second connection sheet 123, penetrating the second support member 124. Naturally, the positive electrode tabs 1032 of all the battery cores 1031 in the first battery core group 121 and the negative electrode tabs 1033 of all the battery cores 1031 in the second battery core group 122 may also be electrically connected through the second connection sheet 123, penetrating the second support member 124.

[0048] 2, 3, and 11, the sampling structure 102 is provided on one side of the battery core row 101 along the third direction, and the second connection sheet 123 includes a base portion 1231 and an extension portion 1232. The base portion 1231 is provided on a side of the second support member 124 away from the first battery core row 115, and the base portion 1231 has a through-hole 134, and is connected to the negative electrode tab 1033 of at least one battery core 1031 in the first battery core group 121 and the negative electrode tab 1033 of the second battery core 122 The positive electrode tab 1032 of at least one battery core 1031 of the first battery core group 121 is electrically connected to the opposite sides of the base portion 1231 through the through-hole 134. 122The negative electrode tab 1033 of at least one battery core 1031 may be electrically connected to the negative electrode tab 1033 of the base portion 1231 on both sides opposite to the base portion 1231 through the through-hole 134 .

[0049] The extension portion 1232 is provided at one end of the base portion 1231 close to the sampling structure 102, is located on one side of the second support member 124 along the third direction, and is electrically connected to the sampling structure 102. Specifically, the extension portion 1232 may be connected to the first collecting terminal 112. Providing the extension portion 1232 on one side of the second support member 124 along the third direction is advantageous for connecting the extension portion 1232 and the sampling structure 102.

[0050] In some embodiments, the second connection sheet 123 is fastened to the second support member 124. Specifically, a snap fit is provided on the side of the second support member 124 away from the first battery core row 115, and the snap fit is fastened to the base portion 1231. Of course, in other embodiments, the second connection sheet 123 may be fastened to the corresponding second support member 124 in a screw connection manner.

[0051] In some embodiments, as shown in FIGS. 2 and 4 , the battery core unit 100 further includes a third support member 125, which is located at the second end 128 of the first battery core row 115. The third support member 125 has two third connection sheets 126 spaced apart from each other. The two battery core groups 103 located at the second ends 128 of the first battery core row 115 and the second battery core row 116 are respectively connected to the third battery core group 132 and the fourth battery core group 133. group 133, and the positive electrode tabs 1032 of all the battery cores 1031 in one of the battery core groups 103 of the third battery core group 132 and the fourth battery core group 133 penetrate through the third support member 125 and are electrically connected via one third connection sheet 126, and the negative electrode tabs 1033 of all the battery cores 1031 in the other battery core group 103 penetrate through the third support member 125 and are electrically connected via another third connection sheet 126.

[0052] The structure of the third connecting sheet 126 may be the same as the structure of the conductive sheet 119, and a description thereof will be omitted here.

[0053] In another aspect, the present application further provides a battery 1000 including a housing 200 and the battery core unit 100 described in any of the above embodiments. The battery core unit 100 is provided within the housing 200. In the battery 1000 according to the present application, the sampling structure 102 can be fitted to the fixed support member 104 in a position restricted manner by the restricting strip 107, which is advantageous in reducing vibration of the sampling structure 102 and improving the reliability of the connection between the sampling structure 102 and the battery core 1031.

[0054] In yet another aspect, the present application further provides a vehicle 2000 including the battery 1000 described above.

[0055] In the description of this application, the orientations or positional relationships indicated by terms such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer" are based on the orientations or positional relationships shown in the drawings and are intended merely to facilitate and simplify the description of this application. They do not indicate or suggest that the depicted devices or components must have a specific orientation, be configured, and operate in a specific orientation, and should not be understood as limiting the present application. Furthermore, features defined as "first" or "second" may explicitly or implicitly include one or more of the feature. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0056] In the description of this application, unless otherwise clearly specified or limited, the terms "attach," "couple," and "connect" should be understood in a broad sense, and may refer to, for example, a fixed connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection, a direct connection, a connection via an intermediate medium, or communication between two parts. Those skilled in the art can understand the specific meanings of the above terms in this application according to specific circumstances.

[0057] In the description herein, the use of reference phrases such as "one embodiment," "some embodiments," "exemplary embodiments," "example," "particular examples," or "some examples" means that the specific features, structures, materials, or characteristics described in combination with the embodiment or example are included in at least one embodiment or example of the present application. In the description herein, the exemplary use of the term does not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples, as appropriate.

[0058] Although embodiments of the present application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and purpose of the present application, and that the scope of the present application is limited by the claims and their equivalents. [Explanation of symbols]

[0059] 2000 vehicles 1000 batteries 100 Battery Core Unit 101 Battery Core Row 102 Sampling Structure 103 Battery Core Group 1031 Battery Core 1032 Positive electrode tab 1033 Negative electrode tab 104 Fixed support member 106 Notch 107 Restriction Strip 108 1st protrusion 109 Second protrusion 110 Interval area 111 Collection terminal 112 First collection terminal 113 Second collection terminal 114 Third Collection Terminal 115 First battery core row 116 Second battery core row 117 Conductive connecting member 118 first support member 119 Conductive Sheet 1191 Main body 1192 First bending part 1193 Second bending part 120 First connection sheet 121 First battery core group 122 Second battery core group 123 Second connection sheet 1231 Base 1232 Extension 124 second support member 25 Third support member 126 Third connection sheet 127 1st end 128 2nd end 129 1st side 130 Second side 131 Escape Route 132 Third Battery Core Group 133 4th Battery Core Group 134 Through hole 200 Housing

Claims

1. A battery core unit including a battery core string and a sampling structure, the battery core row includes a plurality of battery core groups and at least one fixed support member, the plurality of battery core groups are arranged along a first direction and connected in series, and the fixed support member is provided at an electrical connection point between any two adjacent battery core groups; a battery core unit, the sampling structure being electrically connected to the plurality of battery core groups, the sampling structure being provided with a notch, a limiting strip being provided within the notch, the limiting strip being connected to the inner wall of the notch, the fixed support member being provided with a first protrusion and a second protrusion, the first protrusion and the second protrusion being positioned within the notch and spaced apart to form a gap region, and the limiting strip being fitted into the gap region in a position-restricted manner.

2. 2. The battery core unit of claim 1, wherein the opening of the notch is located on one side of the sampling structure along a first direction, the first protrusion and the second protrusion are spaced apart along the first direction, and two inner walls of the notch facing each other along the second direction are connected to the limiting strip.

3. 2. The battery core unit of claim 1, wherein the sampling structure is provided with a plurality of collecting terminals, each of which is electrically connected to a corresponding one of the battery core groups, the plurality of collecting terminals being divided into a first collecting terminal, a second collecting terminal, and a third collecting terminal, the first collecting terminal and the second collecting terminal being disposed at opposite ends of the battery core row along the first direction, and the third collecting terminal being located between the first collecting terminal and the second collecting terminal, and the third collecting terminal being provided on an outer edge of the sampling structure and located on one side of the notch.

4. the battery core battery includes at least two battery core rows, the at least two battery core rows are arranged along a second direction, the battery core rows have first and second ends positioned on opposite sides along the first direction, the at least two battery core rows include a first battery core row and a second battery core row, the first battery core row and the second battery core row are connected in series via two battery core groups positioned at their respective first ends; the first battery core row and the second battery core row each include M battery core groups arranged along the first direction, where M is an integer greater than or equal to 2; the number of collecting terminals is 2M+1, including one first collecting terminal, two second collecting terminals, and 2M-2 third collecting terminals, the first collecting terminal being provided at a first end of the battery core row and the two second collecting terminals being provided at a second end of the battery core row; the sampling structure has first and second sides located on opposite sides along the second direction, and the two second collecting terminals and the 2M-2 third collecting terminals being respectively disposed on the first and second sides of the sampling structure; 4. The battery core unit according to claim 3, wherein the two battery core groups located at first ends of the first battery core row and the second battery core row are both electrically connected to the first collecting terminal, the two battery core groups located at second ends of the first battery core row and the second battery core row are electrically connected to the two second collecting terminals in a one-to-one correspondence, and the M-1 third collecting terminals located on the same side of the sampling structure are each provided between two corresponding adjacent battery core groups and electrically connected to the two adjacent battery core groups.

5. Two notches are provided in the second direction, two first protrusions and two second protrusions are provided, 5. The battery core unit according to claim 4, wherein the first protrusion and the second protrusion are provided in the corresponding notches, and the limiting strip is provided in each of the notches, and the limiting strip is fitted into the corresponding spacing region while restricting its position.

6. The battery core unit according to claim 1 , wherein the sampling structure is adhesively fixed to a fixed support member.

7. Any two adjacent battery core groups are connected via a conductive connecting member, and the fixing support member is provided between any two adjacent battery core groups, and the fixing support member fixes the conductive connecting member; the battery core group includes at least two battery cores connected in parallel, the battery cores have positive electrode tabs and negative electrode tabs, the positive electrode tabs and the negative electrode tabs are disposed on opposite ends of the battery cores along the first direction; 2. The battery core unit according to claim 1, wherein the positive electrode tabs of all the battery cores in one of any two adjacent battery core groups are connected to the negative electrode tabs of all the battery cores in the other battery core group via the conductive connecting member.

8. the fixed support member includes two first support members arranged on opposite sides along the first direction, the conductive connection member includes two electrically connected conductive sheets, the two conductive sheets being fixed to the two first support members in a one-to-one correspondence; 8. The battery core unit according to claim 7, wherein the positive electrode tabs of all of the battery cores in one of any two adjacent battery core groups pass through the corresponding first support member and are connected to the conductive sheet on the first support member, and the negative electrode tabs of all of the battery cores in the other battery core group pass through the corresponding first support member and are connected to the conductive sheet on the first support member.

9. the sampling structure is provided on one side of the battery core row in a third direction, and the conductive sheet includes a main body portion and a first folded portion; the main body portions of the two conductive sheets are located on opposite sides of the two first support members, and the main body portions are electrically connected to the positive electrode tabs or the negative electrode tabs of all the battery cores in the corresponding battery core group; 9. The battery core unit of claim 8, wherein the first bent portion is provided at one end of the main body portion close to the sampling structure, the first bent portion is located on one side of the corresponding first support member along the third direction, and the first bent portion is electrically connected to the sampling structure.

10. the conductive sheet further includes a second folded portion, the second folded portion being provided on one side of the main body portion along the second direction and located on one side of the corresponding first support member along the second direction, the second folded portion and the main body portion defining an escape hole, the escape hole allowing a positive electrode tab or a negative electrode tab of at least one of the corresponding battery cores to escape; 10. The battery core unit according to claim 9, wherein the conductive connection member further includes a first connection sheet, and the second folded portions of the two conductive sheets are electrically connected via the first connection sheet.

11. the battery core unit includes at least two of the battery core rows, the at least two battery core rows are arranged along a second direction, the battery core rows have first and second ends positioned on opposite sides along the first direction, the at least two battery core rows include a first battery core row and a second battery core row, the first battery core row and the second battery core row are connected in series via two battery core groups positioned at their respective first ends; 9. The battery core unit of claim 8, wherein two opposing battery core groups in the first battery core row and the second battery core row correspond to the same first support member, and two conductive sheets are provided on the first support member at an interval, and each conductive sheet is electrically connected to the corresponding battery core group.

12. the two battery core groups connecting the first battery core row and the second battery core row in series are a first battery core group and a second battery core group, respectively; 12. The battery core unit according to claim 11, further comprising a second support member that fixes a second connection sheet, the second support member being located at a first end of the first battery core row, and the positive electrode tabs of all the battery cores in one of the first and second battery core groups and the negative electrode tabs of all the battery cores in the other battery core group passing through the second support member and electrically connected via the second connection sheet.

13. 12. The battery core unit of claim 11, further comprising a third support member, wherein two third connection sheets are provided at an interval on the third support member, the third support member is located at a second end of the first battery core row, the two battery core groups located at the second ends of the first battery core row and the second battery core row are a third battery core group and a fourth battery core group, respectively, and positive electrode tabs of all battery cores in one of the third battery core group and the fourth battery core group are electrically connected via one of the third connection sheets that penetrate the third support member, and negative electrode tabs of all battery cores in the other battery core group are electrically connected via the other third connection sheet that penetrates the third support member.

14. A battery comprising: a housing; and the battery core unit according to any one of claims 1 to 13 provided in the housing.

15. A vehicle comprising the battery core unit according to any one of claims 1 to 13.

16. A vehicle comprising the battery of claim 14.

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