Sampling Structure, Batteries, and Vehicles

Abstract

A vehicle is provided. The vehicle has a battery or a sampling structure. The battery has a sampling structure. The sampling structure includes a sampling circuit. Sampling connectors are disposed on each of two surfaces in a thickness direction of the sampling circuit, and the sampling connectors are configured to connect to sampling points.

Description

[Technical Field]

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS This application claims priority to Patent Application No. 202211634802.9, entitled "SAMPLING STRUCTURE, BATTERY, AND VEHICLE," filed December 19, 2022, which is incorporated by reference in its entirety.

[0002] The present application relates to the technical field of batteries, and in particular to a sampling structure, a battery having the same, and a vehicle having the same. [Background technology]

[0003] As the demand for new energy vehicles increases, the requirements for power batteries in new energy vehicles become increasingly stringent. Batteries in related art typically use a single string of multiple cells. A single string of multiple cells has no intermediate sampling points and a simple sampling structure.

[0004] In order to improve the energy density and contact performance of the battery, the related art provides a string of multiple cells. However, in the string of multiple cells, it is difficult to perform cell signal sampling, which is not beneficial to the stability of the battery use. Summary of the Invention [Problem to be solved by the invention]

[0005] The purpose of the present application is to provide a sampling structure, so that the sampling of the battery can be facilitated, the structure of the battery can be simplified, and the performance of the battery can be optimized.

[0006] Another object of the present application is to provide a battery, the battery including the sampling structure described above.

[0007] It is yet another object of the present application to provide a vehicle, the vehicle including the sampling structure or the battery described above. [Means for solving the problem]

[0008] A sampling structure according to an embodiment of the present application includes a sampling circuit, and a sampling connector is disposed on each of two surfaces in a thickness direction of the sampling circuit, and the sampling connector is configured to connect to a sampling point.

[0009] In the sampling structure according to the embodiment of the present application, the sampling of the battery can be facilitated, the structure of the battery can be simplified, and the performance of the battery can be optimized.

[0010] Furthermore, the sampling structure according to the embodiment of the present application may also have the following further technical features.

[0011] Optionally, the sampling connectors on the two faces of the sampling circuit are located at the same position along the length of the sampling circuit.

[0012] Optionally, the sampling connectors are disposed on opposite sides in a thickness direction of the sampling circuit.

[0013] Optionally, the sampling connector comprises a receptacle, the receptacle having an open end, the open end configured to connect to a sampling point of the cell.

[0014] Optionally, the sampling connector includes a body portion, a clamp hook connected to the body portion, and a stopper connected to the body portion and cooperating with the clamp hook to deploy the sampling connector over the group of cells, and a receptacle is provided on the body portion, and the clamp hook and the stopper are disposed around the receptacle.

[0015] Optionally, the receptacle extends through the thickness of the body portion.

[0016] Optionally, the clamp hook includes a connecting portion and a clamp protrusion, the connecting portion being connected to the main body portion and arranged as a cantilever beam extending in the thickness direction, the clamp protrusion being arranged at a free end of the connecting portion and located on a surface of the connecting portion facing away from the main body portion, the stopper being arranged on the outer peripheral surface of the main body portion, the shortest distance between the clamp protrusion and the sampling circuit being greater than the maximum distance between the stopper and the sampling circuit, and the clamp hook cooperating with the stopper to deploy the sampling connector on the cell.

[0017] Optionally, the receptacle is configured as a flat hole extending through the thickness.

[0018] Optionally, a connection plate is further included, with sampling connectors disposed on two sides of the connection plate, either surface of the connection plate being connected to a sampling circuit.

[0019] A battery according to an embodiment of the present application includes a group of cells and a sampling structure according to the above description, the sampling structure being connected to a side of the group of cells.

[0020] Optionally, a plurality of cell groups are included, the plurality of cell groups comprising a first group of cells and a second group of cells, the sampling structure being disposed between the first group of cells and the second group of cells, and sampling connectors on two faces of the sampling circuit being connected to the first group of cells and the second group of cells, respectively.

[0021] Optionally, in the width direction of the sampling circuit, the sampling structures are disposed near two of the lateral faces of the group of cells.

[0022] Optionally, the group of cells includes at least two cells connected in series along the length of the sampling circuit, the group of cells having first and second ends opposite each other, a first sampling point provided between the series connected cells, and the sampling circuit redirecting the first sampling point to the first end of the group of cells.

[0023] Optionally, a second sampling point is provided at the first end of the group of cells, and the sampling circuit is electrically connected to the second sampling point.

[0024] Optionally, a third sampling point is provided at the second end of the group of cells, and the sampling circuitry is further configured to communicate the third sampling point with the first end of the group of cells.

[0025] Optionally, the battery comprises a first insert member disposed at a first end of the group of cells and electrically connected to a corresponding sampling circuit; and a collection plate, the collection plate disposed at a second end of the group of cells, with a second insert member disposed on the collection plate and electrically connected to the first insert member.

[0026] A vehicle according to an embodiment of the present application includes a battery according to the above description or a sampling structure according to the above description.

[0027] In the sampling structure, battery, and vehicle according to the embodiments of the present application, the sampling point of the cell can be connected to the sampling circuit via the sampling connector, and the sampling point can be communicated with another location by using the sampling circuit, which facilitates connection to the sampling plate and facilitates sampling of the voltage, current, charge and discharge status of each cell, so that the charge, discharge, use, etc. of the battery can be fully recognized, the stability of the battery can be effectively maintained, and the battery life, stability, and therefore the safety of the vehicle having this battery can be improved. [Brief explanation of the drawings]

[0028] [Figure 1] FIG. 2 is a diagram of a sampling structure according to an embodiment of the present application. [Figure 2] FIG. 2 is a partial view of a sampling structure according to an embodiment of the present application. [Figure 3] FIG. 2 is a partial view of a sampling structure according to an embodiment of the present application. [Figure 4] FIG. 2 is a diagram of a sampling structure according to an embodiment of the present application. [Figure 5] FIG. 10 is a diagram of another sampling structure according to an embodiment of the present application. [Figure 6] FIG. 10 is a diagram of yet another sampling structure according to an embodiment of the present application. [Figure 7] FIG. 10 is a diagram of yet another sampling structure according to an embodiment of the present application. [Figure 8] FIG. 10 is a diagram of yet another sampling structure according to an embodiment of the present application. [Figure 9] FIG. 10 is a diagram of yet another sampling structure according to an embodiment of the present application. [Figure 10] 1 illustrates a diagram of multiple cell groups of a battery working together according to an embodiment of the present application. FIG. [Figure 11] FIG. 11 is a partial enlarged view of an area A in FIG. [Figure 12] 1 is a diagram of a battery according to an embodiment of the present application. [Figure 13] FIG. 12 is a partial enlarged view of region B in FIG. [Figure 14] 1 is a cross-sectional view of a battery according to an embodiment of the present application. [Figure 15] FIG. 2 is a view of a second end of a battery according to an embodiment of the present application. [Figure 16] FIG. 2 is a view of a first end of a battery according to an embodiment of the present application. DETAILED DESCRIPTION OF THE INVENTION

[0029] The following describes in detail the embodiments of the present application, and examples of the embodiments are shown in the accompanying drawings. The same or similar reference numerals appearing throughout represent the same or similar elements, or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are examples and are intended to be used to explain the present application, but should not be construed as limiting the present application.

[0030] 1 to 3, a sampling structure 10 according to an embodiment of the present application includes a sampling circuit 11. The sampling circuit 11 may be configured to connect to a sampling point of a battery 100 or a cell, and to communicate the sampling point with a predetermined position, so that a structure such as a sampling plate can be connected to the sampling point, sampling of the battery 100 or a cell can be performed, and the operating state of the battery 100 can be recognized.

[0031] Furthermore, a sampling connector 12 is disposed on one surface of the sampling circuit 11, and the sampling connector 12 is configured to connect to a sampling point, so that the sampling circuit 11 is electrically connected to the sampling point.

[0032] Optionally, as shown in FIG. 3 , a sampling connector 12 is disposed on each of two surfaces of the sampling circuit 11 in the thickness direction of the sampling circuit 11. The sampling connector 12 is disposed on each of the two surfaces of the sampling circuit 11, so that the sampling circuit 11 can be connected to multiple sampling points such that the multiple sampling points communicate with predetermined positions by using the sampling circuit 11. Therefore, the sampling structure 10 can be simplified, and the structure of the battery 100 can be simplified. Furthermore, sampling of the battery 100 can be facilitated, the anti-interference performance of the sampling signal can be improved, the accuracy of the sampling result can be further improved, and stable control of the operation of the battery 100, cells, etc. can be facilitated.

[0033] In the sampling structure 10 according to the embodiment of the present application, multiple sampling points may be connected to the sampling circuit 11 so as to communicate the multiple sampling points with predetermined positions by using the sampling circuit 11, so that the sampling structure 10 can be simplified, the sampling manner of the entire battery 100 can be simplified, and the accuracy of the sampling results can be improved.

[0034] The sampling connectors 12 on two surfaces in the thickness direction (y direction in the accompanying drawings) of the sampling circuit 11 of the present application may connect sampling points in different cell groups 20. The battery 100 to which the present application is applied may include multiple cell groups 20. The multiple cell groups 20 may include a first cell group 20a and a second cell group 20b, and the sampling structure 10 may be disposed between the first cell group 20a and the second cell group 20b. Since the sampling connectors 12 are disposed on each of the two surfaces in the thickness direction of the sampling circuit 11, the sampling circuit 11 can be individually connected to the first cell group 20a and the second cell group 20b through the sampling connectors 12 on the two surfaces, and the sampling points of the first cell group 20a and the second cell group 20b can be communicated with predetermined positions (e.g., ends of the battery 100). Therefore, effective sampling of the battery 100 can be implemented, the sampling structure 10 can be simplified, and sampling efficiency can be improved.

[0035] Furthermore, the sampling connectors 12 on the two surfaces of the sampling circuit 11 in the thickness direction in the present application may alternatively be connected to multiple sampling points of the same cell group 20, or may be connected to one and the same sampling point. Although the present application mainly describes that the sampling connectors 12 on the two surfaces of the sampling circuit 11 are connected to sampling points in different cell groups 20, this does not limit the scope of protection of the present application.

[0036] Optionally, each cell group 20 may include multiple sampling points. As shown in Figures 6 and 7, multiple sampling connectors 12 may be arranged on one side of the sampling circuit 11 for connecting to multiple sampling points in the same cell group 20.

[0037] In some embodiments of the present application, the sampling connectors 12 on the two surfaces of the sampling circuit 11 may be arranged opposite to each other or may be arranged alternately. In other words, the sampling connectors 12 on the two surfaces of the sampling circuit 11 may be arranged opposite to each other in the thickness direction of the sampling circuit 11, or may not be arranged opposite to each other.

[0038] For example, as shown in Fig. 4, one sampling connector 12 may be disposed on each of the two surfaces of the sampling circuit 11, and the sampling connectors 12 on the two surfaces of the sampling circuit 11 may be opposed to each other in the thickness direction. As shown in Fig. 5, one sampling connector 12 may be disposed on each of the two surfaces of the sampling circuit 11, and the sampling connectors 12 on the two surfaces of the sampling circuit 11 may not be opposed to each other in the thickness direction.

[0039] As another example, as shown in Fig. 6, one sampling connector 12 is disposed on one surface of the sampling circuit 11, and multiple sampling connectors 12 are disposed on the other surface. In the thickness direction of the sampling circuit 11, the sampling connector 12 on the one surface may face one of the multiple sampling connectors 12 on the other surface. Alternatively, as shown in Fig. 7, in the thickness direction of the sampling circuit 11, the sampling connector 12 on one surface may not face any of the multiple sampling connectors 12 on the other surface.

[0040] As another example, as shown in FIG. 8 , a plurality of sampling connectors 12 are arranged on one surface of the sampling circuit 11, and a plurality of sampling connectors 12 are arranged on the other surface. In the thickness direction of the sampling circuit 11, the plurality of sampling connectors 12 on one surface face one-to-one with the plurality of sampling connectors 12 on the other surface. Alternatively, as shown in FIG. 9 , in the thickness direction of the sampling circuit 11, at least one of the plurality of sampling connectors 12 on one surface faces one of the plurality of sampling connectors 12 on the other surface, and another sampling connector 12 of the plurality of sampling connectors 12 on the one surface does not face the plurality of sampling connectors 12 on the other surface. Alternatively, in the thickness direction of the sampling circuit 11, none of the plurality of sampling connectors 12 on one surface faces the plurality of sampling connectors 12 on the other surface.

[0041] It should further be noted that the amount of sampling connectors 12 on the two thickness sides of the sampling circuit 11 may be the same or different.

[0042] 3 and 4, in some embodiments of the present application, the sampling connectors 12 on the two faces of the sampling circuit 11 are arranged at the same positions in the length direction of the sampling circuit 11 (the x direction in the accompanying drawings). In this way, the sampling connectors on the two faces of the sampling circuit 11 can be connected to approximately the same positions of adjacent cell groups 20. This helps to extract sampling points at corresponding positions.

[0043] Furthermore, the sampling connectors 12 on the two surfaces of the sampling circuit 11 may alternatively be arranged opposite each other in the thickness direction of the sampling circuit 11. In this way, it is possible to help the sampling circuit 11 connect to the cell group 20 so as to extract the sampling points of the cell group 20. Furthermore, in the mounting process of the sampling structure 10, all of the multiple mounting positions of the sampling circuit 11 can implement stable mounting of the cell group 20 so that an error prevention function can be implemented, which can facilitate the mounting of the sampling circuit 11 and improve the stability of the battery 100.

[0044] Furthermore, in some embodiments of the present application, the sampling connector 12 may be disposed on opposing sides in the thickness direction of the sampling circuit 11. The sampling connector 12 and the sampling circuit 11 are assembled so that the entire sampling structure 10 can be used. This facilitates attachment of the sampling connector 12 and helps extract the sampling points of the cells. Therefore, the stability of the battery 100 having the sampling structure 10 can be improved, and quick assembly of the battery 100 is facilitated.

[0045] 2 and 3, in some embodiments of the present application, the sampling connector 12 includes a receptacle 1201 having an open end configured to connect to a sampling point of a cell. During use, the sampling point of the cell may be pulled out through an adapter seat 22, which may be inserted into the receptacle 1201 to connect the sampling point to the sampling circuit 11. As a result, the sampling point may be communicated with a predetermined position by using the sampling circuit 11, and the stability of the sampling structure 10 may be improved.

[0046] The shape of the receptacle 1201 may be set based on the shape of the adapter seat 22. The receptacle 1201 may be arranged in a circular shape, an oval shape, a triangular shape, a polygonal shape, an irregular shape, etc., and may be selected according to actual use. Preferably, the receptacle 1201 may be arranged in the shape of a flat hole to facilitate insertion of the adapter seat 22 and achieve stable cooperation between the adapter seat 22 and the sampling connector 12, thereby improving quick and stable connection between the adapter seat 22 and the sampling connector 12 and improving the stability of cooperation between the sampling connector 12 and the cell.

[0047] 2 and 3, the sampling connector 12 may include a body portion 121, the receptacle 1201 may be disposed on the body portion 121, and the body portion 121 may be disposed on a side surface in the thickness direction of the sampling circuit 11. The body portion 121 may be attached to the cell to achieve a stable connection between the sampling structure 10 and the cell.

[0048] To achieve a stable connection between the sampling connector 12 and the cell, as shown in Figures 2 and 3, the sampling connector 12 according to the present invention may include a clamp hook 122, which is connected to the body portion 121. The clamp hook 122 may be connected to the cell by a snap fit. For example, the clamp hook 122 may extend into the inside of the cell housing 21 and cooperate with the cell housing 21 by a snap fit.

[0049] Furthermore, to further improve the stability of the connection between the sampling connector 12 and the cell, the sampling connector 12 according to the present application may further include a stopper 123, as shown in Figures 2 and 3. When the sampling connector 12 is attached to the cell housing 21, the stopper 123 may be stopped on the outer surface of the cell housing 21. Cooperation between the clamp hook 122 and the stopper 123 achieves a stable connection between the sampling connector 12 and the cell. The stopper 123 is connected to the main body portion 121 and cooperates with the clamp hook 122 to position the sampling connector 12 on the cell group 20.

[0050] Optionally, the receptacle 1201 is provided on the main body portion 121, and the clamp hook 122 and the stopper 123 are disposed around the receptacle 1201. In this manner, during assembly, the main body portion 121 can be inserted into the housing 21 of the cell, and the receptacle 1201 can be correspondingly inserted into the adapter seat 22 of the cell group 20, and the sampling connector 12 is stably connected to the cell group 20 by cooperation between the clamp hook 122 and the stopper 123. As a result, the sampling connector 12 can be quickly and stably connected to the cell, mechanical and automatic attachment can be facilitated, and the assembly efficiency of the sampling connector 12 can be improved.

[0051] In some embodiments of the present application, the receptacle 1201 penetrates the main body portion 121 in the thickness direction. In other words, the receptacle 1201 is disposed so as to penetrate the main body portion 121 in the thickness direction of the sampling circuit 11, so that the main body portion 121 can be quickly and stably connected to the adapter sheet 22 (connected to the sampling point), and the stability of the electrical connection between the adapter sheet 22 and the sampling circuit 11 can be improved.

[0052] Furthermore, as shown in FIGS. 2 and 3 , the clamp hook 122 may be configured in an elastic cantilever shape to facilitate attachment of the sampling connector 12. In this way, during attachment of the sampling connector 12, the clamp hook 122 can quickly cooperate with the cell housing 21 through a snap fit by utilizing the elastic deformation ability of the clamp hook 122. Specifically, the clamp hook 122 includes a connecting portion 1221 and a clamp protrusion 1222. The connecting portion 1221 is connected to the main body portion 121 and is configured as a cantilever extending in the thickness direction. The clamp protrusion 1222 is disposed at the free end of the connecting portion 1221 and on a surface of the connecting portion 1221 that faces away from the main body portion 121. A stopper 123 is disposed on the outer circumferential surface of the main body portion 121. The shortest distance between the clamp protrusion 1222 and the sampling circuit 11 is s1, and the maximum distance between the stopper 123 and the sampling circuit 11 is s2, where s1 is greater than s2, and the clamp hook 122 cooperates with the stopper 123 to deploy the sampling connector 12 on the cell. During assembly, the elastic deformation ability of the connecting portion 1221 allows the clamp protrusion 1222 to move toward the main body portion 121, thereby reducing the radial size of the sampling connector 12 so that the clamp hook 122 can smoothly extend into the cell housing 21. Under the elastic reset action of the clamp hook 122, the clamp protrusion 122 can hook onto the inner side surface of the cell housing 21. In this case, the stopper 123 is stopped on the outer side surface of the housing 21. Therefore, the sampling connector 12 can be quickly and stably connected to the cell housing 21 through the cooperation between the clamp hook 122 and the stopper 123.

[0053] As shown in FIG. 3 , two opposing surfaces of the main body portion 121 are connected to clamp hooks 122, and two other opposing surfaces of the main body portion 121 have stoppers 123 disposed on them. In other words, the two clamp hooks 122 and the two stoppers 123 are alternately spaced apart and essentially evenly spaced around the circumference of the main body portion 121. This improves the connection strength between the sampling connector and the cell housing 21. Furthermore, the clamp hooks 122 are disposed on two opposing surfaces of the main body portion 121. After the sampling connector 12 is secured to the cell housing 21, applying opposite forces to the clamp hooks 122 on the two opposing surfaces of the main body portion 121 can disengage the clamp hooks 122 from the cell housing 21, thereby removing the sampling connector 12 from the cell housing 21.

[0054] 2 and 3, the receptacle 1201 is configured as a flat hole extending in the thickness direction. When the sampling connector 12 and the cell housing 21 are assembled, the sampling connector 12 can be quickly and stably connected to the adapter seat 22. Furthermore, the space utilization of the battery 100 can be improved.

[0055] 3, some embodiments of the present application further include a connection plate 111. The sampling connectors 12 are disposed on two side surfaces of the connection plate 111, and either surface of the connection plate 111 is connected to the sampling circuit 11. The connection plate 111 is disposed, so that the connection stability between the sampling connectors 12 and the sampling circuit 11 can be improved. Therefore, the sampling connectors 12 can be stably connected to the sampling circuit 11, and the sampling circuit 11 can be stably electrically connected to the sampling point.

[0056] In the sampling structure 10 according to the embodiment of the present application, the sampling connectors 12 are disposed on two surfaces in the thickness direction of the sampling circuit 11. The sampling structure 10 is stably connected to the sampling points of the cell group 20 via the sampling connectors 12, which can simplify the structure of the battery 100 and improve sampling efficiency and sampling accuracy. Furthermore, the present application also provides a battery 100. The battery 100 may include the above-mentioned sampling structure 10. The battery 100 according to the embodiment of the present application will be described below with reference to the accompanying drawings.

[0057] As shown in FIGS. 10 to 16 , a battery 100 according to an embodiment of the present application includes a cell group 20 and the sampling structure 10 described above. The aforementioned sampling structure 10 is arranged so that the sampling structure 10 can be stably connected to the cell group 20. This helps to extract sampling points of the cell group 20 for performing sampling of the sampling points. Therefore, the control module of the battery 100 can timely recognize the operating status of the battery 100 and adjust the battery level, voltage, heat, etc. of the cell group 20 based on the operating status of the battery 100. As a result, the battery 100 can operate stably, improving the battery life and stability of the battery 100.

[0058] Furthermore, in the present application, since the sampling structure 10 is connected to the side of the cell group 20, an increase in the width direction of the cell group 20 can be avoided, the space of the cell group 20 can be fully utilized, space utilization can be improved, and therefore the energy density of the battery 100 can be improved. Furthermore, the sampling structure 10 is disposed on the side of the cell group 20, so that the sampling structure 10 can be connected to adjacent cell groups 20 via sampling connectors 12 on two surfaces in the thickness direction of the sampling circuit 11, respectively. Therefore, the sampling structure 10 of the cell group 20 can be simplified, and the stability of the battery 100 can be improved.

[0059] It should be further noted that a margin for expansion is usually provided during installation of the battery 100. Therefore, in the present application, the sampling structure 10 is disposed on the side of the cell group 20 without affecting the space for the battery 100. In particular, the thickness direction of the cell (or the thickness direction of the sampling circuit 11) is defined as the y direction, the length direction of the cell (or the extension direction of the sampling circuit 11) is defined as the x direction, and the width direction of the cell (or the width direction of the sampling circuit 11) is defined as the z direction. In the present application, the sampling structure 10 is disposed on the side of the cell group 20, so that the space in the z direction can be reduced and an increase in the size of the battery 100 caused by installing the sampling structure 10 at the end of the cell in the z direction can be avoided. Furthermore, the space in the y direction is not affected (although the cell may expand in the y direction during use and therefore a specific space for expansion in the y direction may be reserved when manufacturing the cell, the expansion usually occurs in the center of the battery 100 and therefore when the sampling structure 10 is disposed on the side edge the space in the y direction is not affected), reducing costs.

[0060] 10 to 13, a mounting port 204 is provided on the side of the cell group 20, and an adapter sheet 22 is disposed within the cell group 20, with one end connected to the first sampling point 201 and the other end facing the mounting port 204. The sampling connector 12 is inserted into the mounting port 204 and disposed therein, and the adapter sheet 22 is correspondingly inserted into an interface on the sampling machine head.

[0061] 10 to 15, some embodiments of the present application include a plurality of cell groups 20, including a first cell group 20a and a second cell group 20b, a sampling structure 10 disposed between the first cell group 20a and the second cell group 20b, and sampling connectors 12 on two surfaces of a sampling circuit 11 connected to the first cell group 20a and the second cell group 20b, respectively. Using the sampling circuit 11, sampling points of the first cell group 20a and the second cell group 20b can be extracted, thereby simplifying the structure for extracting the sampling points of the first cell group 20a and the second cell group 20b. This facilitates extracting the sampling points to predetermined positions and connecting them to a sampling plate.

[0062] The first cell group 20a may include one or more sampling points, and the sampling connectors 12 are correspondingly disposed at at least some of the sampling points, so that the sampling points are in communication with predetermined positions. Similarly, the second cell group 20b may also include one or more sampling points, and the sampling connectors 12 are correspondingly disposed at at least some of the sampling points, so that by using one sampling circuit 11, the sampling points of different cell groups 20 are in communication with predetermined positions.

[0063] Furthermore, the battery 100 may include a plurality of first cell groups 20a and a plurality of second cell groups 20b, and the plurality of first cell groups 20a and the plurality of second cell groups 20b may be alternately arranged in the thickness direction, and the sampling structure 10 is disposed between the adjacent first cell groups 20a and second cell groups 20b.

[0064] It should be further noted that the battery 100 may have multiple sampling schemes. For example, the battery 100 in this application may include a first group of cells 20a and a second group of cells 20b, and may also include a third group of cells. In this application, sampling is performed between the first group of cells 20a and the second group of cells 20b by using the sampling structure 10 described above, and the third group of cells may be sampled using another type of sampling scheme.

[0065] In some embodiments of the present application, the sampling structure 10 is disposed near two side surfaces of the cell group 20 in the width direction of the sampling circuit 11. The battery 100 may expand during use. Generally, in the width direction of the sampling circuit 11, larger expansion occurs in the center of the cells and smaller expansion occurs on the side edges. By disposing the sampling circuit 11 near the side edges of the cell group 20, the sampling circuit 11 can be prevented from affecting the expansion space of the cell group 20 and a large expansion space can be secured for the cell group 20, contributing to stable operation of the battery 100.

[0066] 10-14, in some embodiments of the present application, the cell group 20 includes at least two cells connected in series along the length of the sampling circuit 11. Multiple cell groups 20 may form a large group of batteries 100 or a large pack of batteries 100 to meet requirements such as operating voltage.

[0067] The cell group 20 has a first end and a second end facing each other, and a first sampling point 201 is provided between the series-connected cells, and the sampling circuit 11 communicates the first sampling point 201 with the first end of the cell group 20. When the cell group 20 includes two series-connected cells, there may be one first sampling point 201 between the two cell groups 20. When the cell group 20 includes four or more series-connected cells, there may be one first sampling point 201 for each of the two cell groups 20, and different first sampling points 201 may be derived by using the same sampling structure 10 or different sampling structures 10.

[0068] Furthermore, sampling points may be present at the first and second ends of the cell group 20. As shown in FIG. 15 , a second sampling point 202 is provided at the first end of the cell group 20, and the sampling circuit 11 is electrically connected to the second sampling point 202. As shown in FIG. 16 , a third sampling point 203 is provided at the second end of the cell group 20, and the sampling circuit 11 is further configured to connect the third sampling point 203 to the first end of the cell group 20. Therefore, sampling points at different positions in the cell group 20 can be drawn to the same end of the cell group 20 by using the sampling circuit 11, so that sampling plates can be connected to different sampling points of the cell group 20, facilitating centralized sampling of the cell group 20, which helps detect the operating status of the cell group 20, optimize the detection efficiency of the battery 100, timely find problems during the operation of the cell group 20, and improve the stability of the cell group 20 and the battery 100 during operation.

[0069] Additionally, the cells herein may include two, three, or more electrodes.

[0070] In this example, a first electrode and a second electrode are provided at each of the two ends of a cell. Specifically, the first electrode of one cell is configured as the third sampling point 203. The second electrode of the cell is connected to the first electrode of another cell and configured as the first sampling point 201. The second electrode of the other cell is configured as the second sampling point 202. The first sampling point 201, the second sampling point 202, and the third sampling point 203 may be connected to the same end of the cell group 20 by using a sampling structure 10 to facilitate connection to the sampling group. Furthermore, the first cell group 20a and the second cell group 20b may have the same structure, and the first sampling point 201 of the first cell group 20a and the first sampling point 201 of the second cell group 20b may be connected to the sampling circuit 11 via sampling connectors 12 on two surfaces in the thickness direction of the sampling circuit 11. Furthermore, the third sampling point 203 of the first cell group 20a and the third sampling point 203 of the second cell group 20b may also be connected to the sampling circuit 11 via sampling connectors 12 on two surfaces in the thickness direction of the sampling circuit 11.

[0071] Furthermore, two poles may be provided at the high potential of the cell of the present application, one for overcurrent and the other for sampling. The two poles at high potential may be provided at the same end of the cell or at two different ends. The sampling circuit 11 of the present application may have an FPC (flexible printed circuit) structure. The sampling connector 12 may be integrated by injection molding to improve structural strength and insulation performance.

[0072] Furthermore, in this application, cells in different cell groups 20 or multiple cells in the same cell group 20 may be of the same chemistry, for example, all secondary batteries such as lithium iron phosphate batteries, ternary lithium batteries, and sodium batteries, or different chemistries may be mixed and paired, in which case the materials should not be mixed during assembly.

[0073] It should further be noted that the end of the sampling circuit 11 of the present application may be soldered to the second sampling point 202 .

[0074] In a specific example of the present application, the first cell group 20a may include a first housing 21a, and the second cell group 20b may include a second housing 21b. The first housing 21a has a first mounting port, and the second housing 21b has a second mounting port. The first and second mounting ports face each other in the Y direction, the sampling circuit 11 is disposed between the first and second mounting ports, and the sampling connectors 12 on the two sides of the sampling circuit 11 are clamped to the first and second mounting ports, respectively. The first cell group 20a has a first adapter seat 22a, and the second cell group 20b has a second adapter seat 22b. The first adapter sheet 22a is electrically connected to the positive electrode, negative electrode, or composite electrode in the first cell group 20a, and the second adapter sheet 22b is electrically connected to the positive electrode, negative electrode, or composite electrode in the second cell group 20b, and the first adapter sheet 22a and the second adapter sheet 22b are each inserted into the receptacle 1201 of the corresponding sampling connector 12.

[0075] 16 , in some embodiments of the present application, the battery 100 further includes a first insert member 311. The first insert member 311 is disposed at a first end of the cell group 20 and is electrically connected to a corresponding sampling circuit 11. The first insert member 311 may be electrically connected to the sampling circuit 11 to provide an interface for the sampling circuit 11, which helps the sampling circuit 11 to be connected to the collection plate 32.

[0076] The battery 100 of the present application may further include a collection plate 32. The collection plate 32 is disposed at the second end of the cell group 20, and a second insert member 312 is disposed on the collection plate 32, and the second insert member 312 is electrically connected to the first insert member 311. The second insert member 312 cooperates with the first insert member 311, so that the collection plate 32 can be stably electrically connected to the sampling circuit 11, thereby improving the assembly efficiency of the battery 100 and optimizing the sampling accuracy.

[0077] A vehicle according to an embodiment of the present application includes the battery 100 described above and the sampling structure 10 described above. The battery 100 and sampling structure 10 described above are used, so that the sampling points of the cells can be connected to the sampling circuit 11 via the sampling connector 12, and the sampling points can be communicated with another location using the sampling circuit 11. This facilitates connection to the sampling plate and facilitates sampling of the voltage, current, charge and discharge status of each cell, so that the charge, discharge, use, etc. of the battery 100 can be fully recognized and the stability of the battery 100 can be effectively maintained, improving the battery life, stability, and therefore the safety of a vehicle having this battery 100.

[0078] Furthermore, the terms "first" and "second" are intended for descriptive purposes only and should not be understood as indicating or suggesting the relative importance or quantity of the indicated technical features. Thus, a feature qualified by "first" or "second" may explicitly or implicitly include at least one of the features. In the present description, unless specifically limited otherwise, "plurality" means at least two, e.g., two or three.

[0079] In this application, unless otherwise specified and limited, terms such as "mount," "link," "connect," "fasten," and the like, should be understood broadly. For example, unless otherwise specified, the terms may indicate a fixed, detachable, or integral connection, may indicate a mechanical or electrical connection, or may indicate a direct connection, an indirect connection through an intermediate medium, an interconnection between two elements, or an interactive relationship between two elements. Those skilled in the art will be able to understand the specific meanings of the foregoing terms in this application based on the particular context.

[0080] Unless otherwise specified and limited herein, when a first feature is "above" or "below" a second feature, the first feature may be in direct contact with the second feature, or the first feature may be in indirect contact with the second feature via an intermediate medium. Furthermore, when a first feature is "on," "above," or "over" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply that the horizontal height of the first feature is greater than the horizontal height of the second feature. When a first feature is "below," or "under" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply that the horizontal height of the first feature is smaller than the horizontal height of the second feature.

[0081] In the description herein, references such as "an embodiment," "some embodiments," "example," "specific example," "some examples," and the like mean that a particular feature, structure, material, or characteristic described with reference to that embodiment or example is included in at least one embodiment or example of the present application. As used herein, descriptive references to such terms are not necessarily directed to the same embodiment or example. Furthermore, the described particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more of the embodiments or examples. Furthermore, those skilled in the art may combine and associate different embodiments or examples and features of different embodiments or examples described herein without mutual contradiction.

[0082] Although embodiments of the present application have been shown and described above, the foregoing embodiments are examples and should not be understood as limiting the present application, and changes, modifications, substitutions, and variations may be made to the foregoing embodiments by those skilled in the art within the scope of the present application. [Explanation of symbols]

[0083] 100 Battery 10 Sampling Structure 11 Sampling circuit 111 Connecting plate 12 Sampling Connector 1201 Receptacle 121 Main body part 122 Clamp Hook 1221 Connection part 1222 Clamp protrusion 123 Stopper 20 Cell Groups 20a First cell group 20b Second cell group 201 First Sampling Point 202 Second sampling point 203 Third Sampling Point 21 Housing 21a First Housing 21b Second housing 22 Adapter seat 22a First adapter seat 22b Second Adapter Seat 204 Mounting port 311 first insert member 312 second insert member 32 collection plate

Claims

1. A sampling structure (10) comprising a sampling circuit (11), wherein a sampling connector (12) is arranged on each of two surfaces of the sampling circuit (11) in the thickness direction of the sampling circuit (11), and the sampling connector (12) is configured to connect to a sampling point.

2. 2. The sampling structure (10) according to claim 1, wherein the sampling connectors (12) on the two faces of the sampling circuit (11) are arranged at the same positions along the length of the sampling circuit (11).

3. 3. The sampling structure (10) according to claim 1 or 2, wherein the sampling connectors (12) are disposed on opposite sides of the sampling circuit (11) in the thickness direction.

4. 4. The sampling structure (10) of claim 1, wherein the sampling connector (12) comprises a receptacle (1201), the receptacle (1201) having an open end, the open end configured to connect to a sampling point of a cell.

5. 5. The sampling structure (10) of claim 4, wherein the sampling connector (12) comprises: a main body portion (121); a clamp hook (122) connected to the body portion (121); and a stopper (123) connected to the body portion (121) and cooperating with the clamp hook (122) to position the sampling connector (12) on a cell group (20); Equipped with The sampling structure (10) has a receptacle (1201) provided on the body portion (121), and the clamp hook (122) and the stopper (123) are disposed around the receptacle (1201).

6. The sampling structure (10) of claim 5, wherein the receptacle (1201) penetrates the body portion (121) in the thickness direction.

7. 7. The sampling structure (10) according to claim 6, wherein the clamp hook (122) comprises a connecting portion (1221) and a clamp protrusion (1222), the connecting portion (1221) being connected to the main portion (121) and arranged as a cantilever beam extending in the thickness direction, and the clamp protrusion (1222) being arranged at a free end of the connecting portion (1221) and on a surface of the connecting portion (1221) that faces away from the main portion (121). the stopper (123) is disposed on the outer peripheral surface of the main body portion (121), the shortest distance between the clamp protrusion (1222) and the sampling circuit (11) is greater than the maximum distance between the stopper (123) and the sampling circuit (11), and the clamp hook (122) cooperates with the stopper (123) to deploy the sampling connector (12) on the cell.

8. The sampling structure (10) according to any one of claims 5 to 7, wherein the receptacle (1201) is configured as a flat hole extending in the thickness direction.

9. 9. The sampling structure (10) of claim 1, further comprising a connection plate (111), wherein the sampling connectors (12) are arranged on two side surfaces of the connection plate (111), and either surface of the connection plate (111) is connected to the sampling circuit (11).

10. A group of cells (20); and a sampling structure (10) according to any one of claims 1 to 9, wherein the sampling structure (10) is connected to a side of the cell group (20). Battery (100).

11. 11. The battery (100) of claim 10, comprising a plurality of cell groups (20), the plurality of cell groups (20) comprising a first cell group (20a) and a second cell group (20b), the sampling structure (10) being disposed between the first cell group (20a) and the second cell group (20b), and the sampling connectors (12) on the two faces of the sampling circuit (11) being connected to the first cell group (20a) and the second cell group (20b), respectively.

12. 12. The battery (100) according to claim 10 or 11, wherein the sampling structure (10) is arranged near two side surfaces of the cell group (20) in the width direction of the sampling circuit (11).

13. 11. The battery (100) of claim 10, wherein the cell group (20) comprises at least two cells connected in series along the length of the sampling circuit (11), the cell group (20) having a first end and a second end opposite each other, a first sampling point (201) provided between the series-connected cells, and the sampling circuit (11) communicating the first sampling point (201) with the first end of the cell group (20).

14. a second sampling point (202) is provided at the first end of the cell group (20), and the sampling circuit (11) is electrically connected to the second sampling point (202); and / or 14. The battery (100) of claim 13, wherein a third sampling point (203) is provided at the second end of the group of cells (20), and the sampling circuit (11) is further configured to communicate the third sampling point (203) with the first end of the group of cells (20).

15. The battery (100) a first insert (311) disposed at the first end of the cell group (20) and electrically connected to a corresponding sampling circuit (11); 15. The battery (100) of claim 13 or 14, further comprising a collection plate (32), the collection plate (32) being disposed at the second end of the cell group (20), and a second insert member (312) being disposed on the collection plate (32), the second insert member (312) being electrically connected to the first insert member (311).

16. A vehicle comprising a battery (100) according to any one of claims 10 to 15 or a sampling structure (10) according to any one of claims 1 to 9.

Images