Energy storage plug-in box BMU acquisition device

Abstract

This utility model discloses a BMU data acquisition device for an energy storage module, comprising a first battery module, a second battery module, a battery management unit, a first flexible circuit board, a second flexible circuit board, and a ribbon cable. The first and second battery modules are arranged along a first direction. The battery management unit is located at the end of one of the first and second battery modules away from the other. The first flexible circuit board is located on the top surface of one of the first and second battery modules and extends along the first direction, electrically connecting the battery module and the battery management unit. The second flexible circuit board is located on the top surface of the other of the first and second battery modules and extends along the first direction. The ribbon cable is located on the top surface of the first flexible circuit board and extends along the first direction, electrically connecting the second flexible circuit board and the battery management unit. The BMU data acquisition device for an energy storage module according to this utility model saves space and has a neat appearance.

Description

Technical Field

[0001] This utility model relates to the field of energy storage technology, specifically to an energy storage module BMU data acquisition device. Background Technology

[0002] Battery packs typically include a BMU (Battery Management Unit) to collect data on battery voltage and temperature.

[0003] In related technologies, each battery module needs to be electrically connected to the BMU individually via a wiring harness. The wiring harnesses are crisscrossed and messy, and the gaps between the wiring harnesses and surrounding metal components are narrow, making them prone to wear and posing safety risks. Utility Model Content

[0004] This invention aims to at least partially solve one of the technical problems in related technologies. To this end, embodiments of this invention propose an energy storage module BMU data acquisition device.

[0005] The energy storage module BMU acquisition device of this utility model embodiment includes:

[0006] A first battery module and a second battery module are arranged along a first direction;

[0007] A battery management unit is disposed at the end of one of the first battery module and the second battery module away from the other;

[0008] A first flexible circuit board is disposed on the top surface of one of the first battery module and the second battery module and extends along the first direction. The first flexible circuit board is electrically connected to the battery module and the battery management unit.

[0009] A second flexible circuit board is disposed on the top surface of the other of the first battery module and the second battery module and extends along the first direction;

[0010] A ribbon cable is disposed on the top surface of the first flexible circuit board and extends along the first direction, and the ribbon cable is electrically connected to the second flexible circuit board and the battery management unit.

[0011] In this embodiment of the energy storage module BMU acquisition device, one of the first battery module and the second battery module is connected to the battery management unit via a first flexible circuit board, and the other of the first battery module and the second battery module is connected to the battery management unit via a second flexible circuit board and a ribbon cable. Compared with the prior art, which uses wire harnesses for connection, the use of flexible circuit boards and ribbon cables saves the use of wire harnesses, achieves flattening, saves space utilization within the battery pack, improves assembly efficiency, and also looks neat and beautiful, and improves safety.

[0012] In some embodiments, the energy storage box BMU acquisition device further includes a first connector for electrically connecting the first flexible circuit board and the battery management unit.

[0013] In some embodiments, the energy storage box BMU acquisition device further includes a second connector for electrically connecting the ribbon cable and the battery management unit.

[0014] In some embodiments, there are at least two first battery modules and at least two second battery modules, and at least two first battery modules and at least two second battery modules are arranged along a second direction and correspond one-to-one with each other. The second direction is orthogonal to the first direction. There are at least two battery management units and they are arranged along the second direction. At least two battery management units correspond one-to-one with one of the at least two first battery modules and at least two second battery modules. At least two battery management units are electrically connected sequentially via wiring harnesses.

[0015] In some embodiments, the energy storage box BMU acquisition device further includes:

[0016] The mounting plate has a mounting position on its top surface, and the first battery module and the second battery module are disposed in the mounting position.

[0017] A bracket is disposed at one end of the top surface of the mounting plate and extends along the second direction, with at least two battery management units spaced apart on the bracket along the second direction.

[0018] In some embodiments, there are at least two first flexible circuit boards, and each of the at least two first flexible circuit boards corresponds one-to-one with one of the at least two first battery modules and at least two second battery modules.

[0019] In some embodiments, there are at least two second flexible circuit boards, and each of the at least two second flexible circuit boards corresponds one-to-one with another of the at least two first battery modules and the at least two second battery modules.

[0020] In some embodiments, there are at least two ribbon cables, and at least two ribbon cables correspond one-to-one with at least two second flexible circuit boards.

[0021] In some embodiments, the top surface of the battery management unit has a first interface and a second interface, the first connector is disposed on the first interface, and the second connector is disposed on the second interface. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the energy storage box BMU acquisition device according to an embodiment of the present invention.

[0023] Figure 2 This is a schematic diagram of the battery module of the energy storage box BMU acquisition device according to an embodiment of this utility model.

[0024] Figure 3 yes Figure 2 An enlarged schematic diagram of part A in the middle.

[0025] Figure 4 This is a schematic diagram of the mounting plate of the BMU data acquisition device in the energy storage box according to an embodiment of this utility model.

[0026] Figure 5 yes Figure 4 Enlarged schematic diagram of part B.

[0027] Reference numerals: 1. First battery module; 2. Second battery module; 3. Battery management unit; 31. First interface; 32. Second interface; 4. First flexible circuit board; 5. Second flexible circuit board; 6. Ribbon cable; 71. First connector; 72. Second connector; 8. Wiring harness; 91. Mounting plate; 911. Mounting position; 92. Bracket. Detailed Implementation

[0028] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0029] like Figures 1-5 As shown, the energy storage module BMU acquisition device of this embodiment includes a first battery module 1, a second battery module 2, a battery management unit 3, a first flexible circuit board 4, a second flexible circuit board 5, and a ribbon cable 6. The first battery module 1 and the second battery module 2 are connected along a first direction (e.g., ...). Figure 1Arranged in the front-to-back direction (as shown). The battery management unit 3 is located at the end of one of the first battery modules 1 and the second battery module 2 furthest from the other. A first flexible circuit board 4 is located on the top surface of one of the first battery modules 1 and the second battery module 2 and extends along a first direction; the first flexible circuit board 4 electrically connects the battery module and the battery management unit 3. A second flexible circuit board 5 is located on the top surface of the other of the first battery module 1 and the second battery module 2 and extends along the first direction. A ribbon cable 6 is located on the top surface of the first flexible circuit board 4 and extends along the first direction; the ribbon cable 6 electrically connects the second flexible circuit board 5 and the battery management unit 3.

[0030] In this embodiment of the energy storage module BMU acquisition device, one of the first battery module 1 and the second battery module 2 is connected to the battery management unit 3 via a first flexible circuit board 4, and the other of the first battery module 1 and the second battery module 2 is connected to the battery management unit 3 via a second flexible circuit board 5 and a ribbon cable 6. Compared with the prior art, which uses a wire harness 8 for connection, the setting of the flexible circuit board and the ribbon cable 6 saves the use of the wire harness 8, achieves flattening, saves space utilization in the battery pack, improves assembly efficiency, and looks neat and beautiful, and improves safety.

[0031] Specifically, the first battery module 1 and the second battery module 2 are arranged in a front-to-back direction, with the first battery module 1 located in front of the second battery module 2. The battery management unit 3 is located at the front end of the first battery module 1. A first flexible circuit board 4 is laid in the middle of the top surface of the first battery module 1 and extends along a first direction. The first flexible circuit board 4 is used to collect signals from the first battery module 1 and transmit the signals to the battery management unit 3. A second flexible circuit board 5 is laid in the middle of the top surface of the second battery module 2 and extends along a second direction. The second flexible circuit board 5 is used to collect signals from the second battery module 2 and transmit the signals to the battery management unit 3 via a ribbon cable 6. The battery management unit 3 monitors and manages the battery voltage and temperature based on the received signals.

[0032] In some embodiments, the energy storage box BMU acquisition device further includes a first connector 71, which is used to electrically connect the first flexible circuit board 4 and the battery management unit 3.

[0033] Specifically, the first connector 71 is a combination of board-end and wire-end connectors. The first connector 71 is located at one end of the first flexible circuit board 4 adjacent to the battery management unit 3, so as to transmit the signal of the first battery module 1 collected by the first flexible circuit board 4 to the battery management unit 3.

[0034] In some embodiments, the energy storage box BMU acquisition device further includes a second connector 72, which is used to electrically connect the ribbon cable 6 and the battery management unit 3.

[0035] Specifically, the second connector 72 is a wire-end connector. One end of the ribbon cable 6 is connected to the second flexible circuit board 5, and the other end of the ribbon cable 6 is connected to the second connector 72 to transmit the signal of the second battery module 2 collected by the second flexible circuit board 5 to the battery management unit 3.

[0036] In some embodiments, there are at least two first battery modules 1 and at least two second battery modules 2. The at least two first battery modules 1 and at least two second battery modules 2 are arranged along a second direction and correspond one-to-one. The second direction is orthogonal to the first direction. There are at least two battery management units 3 and they are arranged along the second direction. The at least two battery management units 3 correspond one-to-one with one of the at least two first battery modules 1 and at least two second battery modules 2. The at least two battery management units 3 are electrically connected sequentially through a wiring harness 8.

[0037] Specifically, there are four first battery modules 1 and four second battery modules 2. The four first battery modules 1 are arranged along the second direction, and the four second battery modules 2 are also arranged along the second direction and correspond one-to-one with the four first battery modules 1. There are four battery management units 3. The four battery management units 3 are arranged at intervals along the second direction and correspond one-to-one with the four first battery modules 1. The four battery management units 3 are electrically connected sequentially through wiring harness 8 to complete the communication connection between the four battery management units 3.

[0038] In some embodiments, the energy storage module BMU acquisition device further includes a mounting plate 91 and a bracket 92. The top surface of the mounting plate 91 has a mounting position 911, where the first battery module 1 and the second battery module 2 are disposed. The bracket 92 is disposed at one end of the top surface of the mounting plate 91, and extends along a second direction. At least two battery management units 3 are spaced apart on the bracket 92 along the second direction.

[0039] Specifically, there are multiple mounting positions 911, which are divided into two groups. The two groups of mounting positions 911 are arranged along the first direction. Each group includes at least two mounting positions 911, and the at least two mounting positions 911 in each group correspond one-to-one. The bracket 92 is located at one end of the mounting plate 91, and the battery management unit 3 is located on the mounting plate 91 to ensure that the battery management unit 3 is installed stably.

[0040] In some embodiments, there are at least two first flexible circuit boards 4, and each of the at least two first flexible circuit boards 4 corresponds one-to-one with one of the at least two first battery modules 1 and at least two second battery modules 2.

[0041] Specifically, the number of first flexible circuit boards 4 is the same as the number of first battery modules 1 and they are set in a one-to-one correspondence, so that the first flexible circuit boards 4 can collect signals from each first battery module 1.

[0042] In some embodiments, there are at least two second flexible circuit boards 5, and each of the at least two second flexible circuit boards 5 corresponds to one of the at least two first battery modules 1 and at least two second battery modules 2.

[0043] Specifically, the number of second flexible circuit boards 5 is the same as the number of second battery modules 2 and they are set in a one-to-one correspondence, so that the second flexible circuit boards 5 can collect signals from each second battery module 2.

[0044] In some embodiments, there are at least two ribbon cables 6, and at least two ribbon cables 6 correspond one-to-one with at least two second flexible circuit boards 5.

[0045] Specifically, the number of ribbon cables 6 is the same as the number of second flexible circuit boards 5 and they are set in a one-to-one correspondence, so that the ribbon cables 6 can transmit the signals collected by the second flexible circuit boards 5 to the battery management unit 3.

[0046] In some embodiments, the top surface of the battery management unit 3 has a first interface 31 and a second interface 32, a first connector 71 is disposed on the first interface 31, and a second connector 72 is disposed on the second interface 32.

[0047] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0048] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0049] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0050] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0051] In this utility model, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0052] Although the above embodiments have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Any changes, modifications, substitutions and variations made to the above embodiments by those skilled in the art are within the protection scope of the present invention.

Claims

1. A BMU data acquisition device for an energy storage module, characterized in that, include: A first battery module (1) and a second battery module (2) are arranged along a first direction; A battery management unit (3) is located at the end of one of the first battery module (1) and the second battery module (2) away from the other. A first flexible circuit board (4) is disposed on the top surface of one of the first battery module (1) and the second battery module (2) and extends along the first direction. The first flexible circuit board (4) is electrically connected to the battery module and the battery management unit (3). The second flexible circuit board (5) is disposed on the top surface of the other of the first battery module (1) and the second battery module (2) and extends along the first direction; A ribbon cable (6) is disposed on the top surface of the first flexible circuit board (4) and extends along the first direction. The ribbon cable (6) is electrically connected to the second flexible circuit board (5) and the battery management unit (3).

2. The energy storage module BMU acquisition device according to claim 1, characterized in that, It also includes a first connector (71) for electrically connecting the first flexible circuit board (4) and the battery management unit (3).

3. The energy storage module BMU acquisition device according to claim 2, characterized in that, It also includes a second connector (72) for electrically connecting the ribbon cable (6) and the battery management unit (3).

4. The energy storage module BMU acquisition device according to claim 1, characterized in that, There are at least two first battery modules (1) and at least two second battery modules (2). At least two first battery modules (1) and at least two second battery modules (2) are arranged along a second direction and correspond one-to-one. The second direction is orthogonal to the first direction. There are at least two battery management units (3) and they are arranged along the second direction. At least two battery management units (3) correspond one-to-one with one of the at least two first battery modules (1) and at least two second battery modules (2). At least two battery management units (3) are electrically connected in sequence through a wiring harness (8).

5. The energy storage module BMU acquisition device according to claim 4, characterized in that, Also includes: Mounting plate (91), the top surface of which has mounting position (911), the first battery module (1) and the second battery module (2) are disposed in the mounting position (911); A bracket (92) is disposed at one end of the top surface of the mounting plate (91), the bracket (92) extends along the second direction, and at least two battery management units (3) are disposed at intervals along the second direction on the bracket (92).

6. The energy storage module BMU acquisition device according to claim 4, characterized in that, There are at least two first flexible circuit boards (4), and each of the at least two first flexible circuit boards (4) corresponds one-to-one with one of the at least two first battery modules (1) and at least two second battery modules (2).

7. The energy storage module BMU acquisition device according to claim 2, characterized in that, There are at least two second flexible circuit boards (5), and each of the at least two second flexible circuit boards (5) corresponds to one of the other of the at least two first battery modules (1) and the at least two second battery modules (2).

8. The energy storage module BMU acquisition device according to claim 7, characterized in that, There are at least two ribbon cables (6), and at least two ribbon cables (6) correspond one-to-one with at least two second flexible circuit boards (5).

9. The energy storage module BMU acquisition device according to claim 3, characterized in that, The top surface of the battery management unit (3) has a first interface (31) and a second interface (32), the first connector (71) is disposed on the first interface (31), and the second connector (72) is disposed on the second interface (32).

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