Sampling assembly and battery pack

Abstract

The utility model relates to a sampling assembly and a battery pack. The sampling assembly comprises a lower-layer support, an upper-layer support, a lower-layer wire harness and an upper-layer wire harness. The upper-layer support is connected to one side of the lower-layer support in the Z direction, a first wiring space is formed between the upper-layer support and the lower-layer support, and a second wiring space is formed in the side, away from the lower-layer support, of the upper-layer support in the Z direction. The main body of the lower-layer wire harness is positioned in the first wiring space and is used for detecting voltage; the main body of the upper-layer wire harness is located in the second wiring space and used for detecting temperature signals. According to the sampling assembly and the battery pack provided by the embodiment of the invention, the lower-layer bracket and the upper-layer bracket are respectively arranged to respectively form the first wiring space and the second wiring space, so that the main body of the lower-layer wire harness and the main body of the upper-layer wire harness are separated; operators can distinguish the types of the two wire harnesses by observing whether the main body corresponding to the branches of the wire harnesses is located in the first wiring space or the second wiring space, and arrangement and maintenance of the wire harnesses are facilitated.

Description

Technical Field

[0001] The present application relates to the field of battery technology, and in particular to a sampling assembly and a battery pack. Background Art

[0002] To ensure that batteries operate within the specified voltage and temperature ranges, existing technologies typically employ an integrated busbar (Cells Contact System, CCS) with sampling components to collect voltage and temperature data from each module within the battery. To ensure sampling accuracy and safety, redundant sampling is often implemented in many scenarios. This often results in numerous sampling harnesses, and traditional sampling components present challenges such as inconvenient and unstable securing, difficulty organizing, and difficulty in maintenance. Utility Model Content

[0003] In view of this, embodiments of the present application provide a sampling assembly and a battery pack to solve at least one problem existing in the sampling assembly in the background art.

[0004] In a first aspect, an embodiment of the present application provides a sampling component, comprising:

[0005] Lower support;

[0006] An upper bracket is connected to one side of the lower bracket along the Z direction and extends along the X direction with the lower bracket, a first wiring space is formed between the upper bracket and the lower bracket, and a second wiring space is formed on the side of the upper bracket away from the lower bracket along the Z direction;

[0007] a lower wiring harness, the main body of which is located in the first wiring space and arranged along the extension direction of the lower bracket, and the lower wiring harness is used for detecting voltage;

[0008] an upper wiring harness, the main body of which is located in the second wiring space and arranged along the extension direction of the upper bracket, and the upper wiring harness is used to detect temperature signals;

[0009] The lower bracket can limit the position of the lower wire harness, the upper bracket can limit the position of the upper wire harness, and the upper bracket isolates the lower wire harness from the upper wire harness along the Z direction.

[0010] In an optional embodiment, the sampling component further includes a plurality of busbars, and the side of the lower bracket along the Z direction toward the upper bracket has a plurality of slots arranged along the X direction, and the plurality of slots are located on both sides of the first wiring space along the Y direction, and the plurality of busbars are respectively located in the corresponding slots; the branches of the lower wiring harness and the branches of the upper wiring harness are respectively connected to the corresponding busbars.

[0011] In an optional embodiment, the slot has a plurality of clips, and the busbar is limited by the clips.

[0012] In an optional embodiment, the slot has a positioning column protruding along the Z direction toward one side of the busbar, and the busbar has a positioning hole, which can be sleeved on the positioning column.

[0013] In an optional embodiment, the lower bracket has a limiting groove on one side of the upper bracket along the Z direction, and the upper bracket has a limiting protrusion on one side of the lower bracket along the Z direction, and the limiting protrusion is inserted into the limiting groove, so that the movement of the upper bracket relative to the lower bracket is restricted.

[0014] In an optional embodiment, a limiting block is provided on the inner wall of the limiting groove, and the limiting protrusion has a notch for use with the limiting block. The limiting block is inserted into the notch to restrict the movement of the upper bracket relative to the lower bracket.

[0015] In an optional embodiment, the upper support includes an upper body and several extended side panels, and the several extended side panels are staggeredly arranged on both sides of the upper body along the Y direction, forming the first wiring space between the upper body and the lower support.

[0016] In an optional embodiment, at least part of the limiting protrusions are located on the extended side plate.

[0017] In an optional embodiment, correspondingly arranged tie holes are provided on the lower bracket and the upper bracket, and the lower bracket and the upper bracket are fixed by tie holes passed through the tie holes;

[0018] The tie holes are distributed on both sides of the lower layer wire harness and the upper layer wire harness along the Y direction, so that the lower layer wire harness and the upper layer wire harness are bundled together by the tie ties installed in the tie holes.

[0019] In a second aspect, an embodiment of the present application provides a battery pack, comprising a battery module and the sampling component described in the first aspect, wherein the sampling component samples the voltage and temperature of the battery module.

[0020] The sampling assembly and battery pack provided in the embodiment of the present application form a first wiring space and a second wiring space respectively by separately setting the lower bracket and the upper bracket, separating the main body of the lower wiring harness from the main body of the upper wiring harness, making it easy to distinguish the two wiring harnesses and facilitating the arrangement and maintenance of the wiring harnesses.

[0021] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0023] Figure 1 A schematic diagram of the structure of the sampling component provided in an embodiment of the present application;

[0024] Figure 2 An exploded view of a sampling assembly provided in an embodiment of the present application;

[0025] Figure 3 A schematic diagram of the structure of the lower support provided in an embodiment of the present application;

[0026] Figure 4 A partial enlarged view of the lower support provided in an embodiment of the present application;

[0027] Figure 5 A schematic diagram of the structure of the busbar provided in an embodiment of the present application;

[0028] Figure 6 A schematic diagram of the structure of the upper support provided in an embodiment of the present application;

[0029] Figure 7 A partial enlarged view of the upper support provided in an embodiment of the present application;

[0030] Figure 8 A cross-sectional schematic diagram of the sampling assembly provided in an embodiment of the present application.

[0031] The reference numerals in the figures are:

[0032] 1. Lower bracket; 11. Card slot; 12. Limit slot; 111. Buckle; 112. Positioning column; 121. Limit block;

[0033] 2. Upper bracket; 21. Position-limiting protrusion; 22. Upper body; 23. Extended side panel; 211. Notch;

[0034] 3. Lower wiring harness;

[0035] 4. Upper wiring harness;

[0036] 5. Busbar; 50. Positioning hole;

[0037] 6. Tie hole;

[0038] 7. Cable tie. DETAILED DESCRIPTION

[0039] To make the technical solutions and beneficial effects of the present invention more clearly understood, the following detailed description is given by way of specific embodiments. The accompanying drawings are not necessarily drawn to scale, and local features may be enlarged or reduced to more clearly illustrate the details of the local features. Unless otherwise defined, the technical and scientific terms used herein have the same meanings as those in the technical field to which this application belongs.

[0040] In the description of the present invention, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "height", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and so on, indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of simplifying the description of the present invention, and do not indicate that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and should not be understood as a limitation to the present invention.

[0041] In this utility model, the terms "first" and "second" are used solely for descriptive purposes and should not be construed as indicating the relative importance of the features indicated or the number of technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two or three, and "several" means at least one, such as one, two, or three, unless otherwise expressly specified.

[0042] In this utility model, unless otherwise expressly defined, the terms "install," "connect," "connect," "fix," "dispose," etc. should be understood broadly. For example, "connect" can mean fixed, removable, or integrated; it can mean mechanical or electrical; it can mean direct or indirect connection through an intermediary; it can also mean internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0043] In the present invention, unless otherwise clearly defined, when a first feature is “on,” “above,” “above,” “above,” “below,” “below,” or “below” a second feature, the first feature and the second feature may be in direct contact, or the first feature and the second feature may be in indirect contact via an intermediate medium. Moreover, when a first feature is “on,” “above,” or “above” a second feature, it may mean that the first feature is directly above or obliquely above the second feature, or simply means that the horizontal height of the first feature is higher than the horizontal height of the second feature. When a first feature is “below,” “below,” or “below” a second feature, it may mean that the first feature is directly below or obliquely below the second feature, or simply means that the horizontal height of the first feature is lower than the horizontal height of the second feature.

[0044] In order to fully understand the present application, detailed steps and detailed structures will be presented in the following description to illustrate the technical solution of the present application. The preferred embodiments of the present application are described in detail below. However, in addition to these detailed descriptions, the present application may also have other implementation methods.

[0045] In the existing technology, the integrated busbar with sampling components collects the voltage and temperature of each module in the battery, adopts a single-layer wiring harness layout, and there are many wiring harnesses. When filling them in the bracket groove, they need to be sorted out to lead out the wiring harness branch for temperature detection and the wiring harness branch for the voltage detection end. Moreover, due to the crowding in the same groove, the position where the two wiring harness branches are led out will occupy the Z-direction space, resulting in a very high protrusion, which requires a high level of design and requires the operator to have a high level of craftsmanship to sort them out clearly, making it not easy to install and produce.

[0046] This embodiment provides a sampling component, such as Figure 1 、 Figure 2 As shown, it includes: a lower bracket 1, an upper bracket 2, a lower wiring harness 3, and an upper wiring harness 4. The upper bracket 2 is connected to one side of the lower bracket 1 along the Z direction and extends along the X direction with the lower bracket 1. A first wiring space is formed between the upper bracket 2 and the lower bracket 1, and a second wiring space is formed on the side of the upper bracket 2 away from the lower bracket 1 along the Z direction.

[0047] The main body of the lower wiring harness 3 is located in the first wiring space and is arranged along the extension direction of the lower bracket 1. The lower wiring harness 3 is used for voltage detection. The main body of the upper wiring harness 4 is located in the second wiring space and is arranged along the extension direction of the upper bracket 2. The upper wiring harness 4 is used for temperature signal detection. The lower bracket 1 can limit the position of the lower wiring harness 3, and the upper bracket 2 can limit the position of the upper wiring harness 4. The upper bracket 2 isolates the lower wiring harness 3 and the upper wiring harness 4 in the Z direction.

[0048] In this embodiment, the main body of the upper wiring harness 4 and the lower wiring harness 3 refers to the wiring harness including a bundled portion of wires formed by arranging a number of wires in a concentrated manner. Relatively speaking, the upper wiring harness 4 and the lower wiring harness 3 also have branches, which refer to the part that is laterally led out on the basis of the above-mentioned bundled portion, and are also the end portion of a single wire.

[0049] The sampling component provided in the embodiment of the present application forms a first wiring space and a second wiring space respectively by separately setting the lower bracket 1 and the upper bracket 2. The lower wiring harness 3 is used to detect voltage, and the upper wiring harness 4 is used to detect temperature signals. The main body of the lower wiring harness 3 is separated from the main body of the upper wiring harness 4. The operator can distinguish the types of the two wiring harnesses by observing whether the main body corresponding to the branch of the wiring harness is located in the first wiring space or the second wiring space, which facilitates the arrangement and maintenance of the wiring harnesses.

[0050] Furthermore, the temperature detection module of an integrated busbar using a flexible printed circuit (FPC) is easily damaged and difficult to repair, requiring only direct replacement. Compared to integrated busbars using a flexible printed circuit (FPC), the integrated busbar using the sampling assembly of this embodiment is not only more robust but also easier to repair, making it more suitable for long-term use in energy storage applications.

[0051] In an optional embodiment, if Figure 1-Figure 5 As shown, the sampling assembly further includes a plurality of busbars 5. The lower bracket 1 has a plurality of slots 11 arranged along the X direction on one side facing the upper bracket 2 along the Z direction. The plurality of slots 11 are located on both sides of the first wiring space along the Y direction, and the plurality of busbars 5 are respectively located in the corresponding slots 11. The branches of the lower wiring harness 3 and the branches of the upper wiring harness 4 are respectively connected to the corresponding busbars 5. In this embodiment, the busbars 5 are arranged in an orderly manner along the Y direction, which can facilitate the operator to sort out the branches of each wiring harness. The plurality of busbars 5 can facilitate the corresponding grouping of the branches of the lower wiring harness 3 and the branches of the upper wiring harness 4, further facilitating the operator to distinguish the branches of the wiring harness.

[0052] In an optional embodiment, if Figure 4 As shown, the slot 11 has a plurality of buckles 111, and the busbar 5 is limited by the buckles 111. In this embodiment, the busbar 5 is fixed in a buckle-type manner, which can facilitate the operator to disassemble and assemble as needed, thereby improving the convenience of assembly and replacement.

[0053] In an optional embodiment, if Figure 4 、 Figure 5As shown, the slot 11 includes a positioning post 112 protruding along the Z direction toward one side of the busbar 5. The busbar 5 includes a positioning hole 50, which can be sleeved onto the positioning post 112. In this embodiment, the coordinated arrangement of the positioning post 112 and the positioning hole 50 can help the operator quickly find the correct installation angle of the busbar 5 when installing the busbar 5. By aligning the positioning hole 50 with the positioning post 112, the busbar 5 is accurately installed and is less likely to shake after installation, thereby improving stability after installation.

[0054] In an optional embodiment, if Figure 5 As shown, the sampling assembly of this embodiment includes two types of busbars 5, Figure 5 The busbar 5 for connecting the positive and negative poles of the wiring harness is shown on the right side, and the busbar 5 for connecting the wiring harness in series is shown on the left side. Figure 2 As shown, the busbars 5 connecting the positive and negative poles of the wiring harness are respectively arranged at both ends of the lower bracket 1 along the X direction, and the busbars 5 connecting the positive and negative poles of the wiring harness are arranged in other areas. Correspondingly, the slots 11 of the lower bracket 1 also include two types, which can be matched with the two types of busbars 5 respectively.

[0055] In an optional embodiment, if Figure 4 、 Figure 8 As shown, one side of the card slot 11 has an opening, which communicates with the first wiring space and the second wiring space for the branches of the lower layer wiring harness 3 and the branches of the upper layer wiring harness 4 to pass through to connect to the busbar 5.

[0056] In an optional embodiment, if Figure 3 、 Figure 4 As shown, the lower support 1 has a limiting groove 12 on one side facing the upper support 2 along the Z direction. Figure 6 、 Figure 7 As shown, the upper support 2 has a limiting protrusion 21 on one side facing the lower support 1 along the Z direction, as shown in FIG. Figure 8 As shown, the limiting protrusion 21 engages the limiting groove 12, restricting the movement of the upper bracket 2 relative to the lower bracket 1. In this embodiment, the provision of the limiting groove 12 and limiting protrusion 21 prevents misalignment of the upper bracket 2 and the lower bracket 1 after stacking, improving the stability of the connection. The limiting groove 12 and limiting protrusion 21 extend along the Z direction, so the direction of assembly and disassembly is the Z direction. This facilitates assembly and disassembly while providing sufficient restraint in the X and Y directions.

[0057] In an optional embodiment, if Figure 4 As shown, the inner wall of the limiting groove 12 has a limiting block 121, as shown in FIG. Figure 7As shown, the limiting protrusion 21 has a notch 211 for use with the limiting block 121. The limiting block 121 is inserted into the notch 211, thereby restricting the movement of the upper bracket 2 relative to the lower bracket 1. In this embodiment, by providing the notch 211 on the limiting protrusion 21 and the limiting block 121 on the inner wall of the limiting groove 12, the mutual limitation between the upper bracket 2 and the lower bracket 1 in the X and Y directions can be further improved, further improving the stability of the connection between the two.

[0058] In an optional embodiment, if Figure 6 、 Figure 8 As shown, the upper bracket 2 includes an upper body 22 and several extended side panels 23. The extended side panels 23 are staggered on both sides of the upper body 22 along the Y direction, forming a first wiring space between the upper body 22 and the lower bracket 1. In this embodiment, the upper body 22 extends along the X direction and has a smaller width in the Y direction. The extended side panels 23 expand the area of the upper body 22 along the Y direction, facilitating a stable connection between the upper bracket 2 and the lower bracket 1. The staggered arrangement can stagger the space occupied by the extended side panels 23, avoiding crowding.

[0059] In an optional embodiment, if Figure 6 As shown, part of the limiting protrusions 21 are located on the extended side plates 23, and part of the limiting protrusions 21 are located on the upper body 22. In this embodiment, the limiting protrusions 21 located on the extended side plates 23 can enhance the stability of the connection between the upper bracket 2 and the lower bracket 1 in the Y direction, avoiding the problem of relative looseness between the upper bracket 2 and the lower bracket 1 in the Y direction when only the limiting protrusions 21 are provided on the upper body 22.

[0060] In an optional embodiment, if Figure 8 As shown, correspondingly arranged tie holes 6 are provided on the lower bracket 1 and the upper bracket 2. The lower bracket 1 and the upper bracket 2 are secured together by tie ties 7 inserted through the tie holes 6. The tie holes 6 are distributed along the Y direction on both sides of the lower wiring harness 3 and the upper wiring harness 4, so that the lower wiring harness 3 and the upper wiring harness 4 can be bound together by the tie ties 7 installed in the tie holes 6. In this embodiment, the structure in which the tie holes 6 are provided on the lower bracket 1 and the upper bracket 2 facilitates the use of the tie ties 7 to secure the two together, while also allowing the lower wiring harness 3 and the upper wiring harness 4 to be bound together, thereby constraining the lower wiring harness 3 and the upper wiring harness 4. The cable tie 7 is simple to set up and easy to operate. In this embodiment, the only fixing part between the lower bracket 1 and the upper bracket 2 is the cable tie 7 (the limiting protrusion 21 is limited only in the X direction and the Y direction). Therefore, if the lower bracket 1 and the upper bracket 2 need to be disassembled, it is only necessary to cut the cable tie 7. After the cable tie 7 is cut, the lower bracket 1 and the upper bracket 2 can be separated from each other along the Z direction, which is also easier to maintain.

[0061] In an optional embodiment, the knotting position of the cable tie 7 is set above the upper bracket 2 to facilitate observation and operation by operators.

[0062] This embodiment further provides a battery pack, including a battery module and the above-mentioned sampling component, wherein the sampling component samples the voltage and temperature of the battery module.

[0063] The battery pack provided in the embodiment of the present application forms a first wiring space and a second wiring space respectively by separately setting the lower bracket 1 and the upper bracket 2. The lower wiring harness 3 is used to detect voltage, and the upper wiring harness 4 is used to detect temperature signals. The main body of the lower wiring harness 3 is separated from the main body of the upper wiring harness 4. The operator can distinguish the two types of wiring harnesses by observing whether the main body corresponding to the branch of the wiring harness is located in the first wiring space or the second wiring space, which facilitates wiring harness arrangement and maintenance.

[0064] It should be understood that the above embodiments are exemplary and are not intended to encompass all possible implementations of the claims. Various modifications and variations may be made to the above embodiments without departing from the scope of the present disclosure. Similarly, the various technical features of the above embodiments may be arbitrarily combined to form additional embodiments of the present application that may not be explicitly described. Therefore, the above embodiments merely illustrate several implementations of the present application and do not limit the scope of protection of the patent application.

Claims

1. A sampling assembly, characterized in that: include: Lower support (1); An upper support (2) is connected to one side of the lower support (1) along the Z direction and extends with the lower support (1) along the X direction, a first wiring space is formed between the upper support (2) and the lower support (1), and a second wiring space is formed on a side of the upper support (2) away from the lower support (1) along the Z direction; A lower wiring harness (3), the main body of the lower wiring harness (3) being located in the first wiring space and arranged along the extension direction of the lower support (1), the lower wiring harness (3) being used for detecting voltage; an upper wiring harness (4), the main body of the upper wiring harness (4) being located in the second wiring space and arranged along the extension direction of the upper bracket (2), and the upper wiring harness (4) being used to detect temperature signals; The lower bracket (1) can limit the position of the lower wire harness (3), and the upper bracket (2) can limit the position of the upper wire harness (4). The upper bracket (2) isolates the lower wire harness (3) from the upper wire harness (4) along the Z direction.

2. The sampling assembly according to claim 1, characterized in that The sampling assembly further comprises a plurality of busbars (5); the lower support (1) has a plurality of slots (11) arranged along the X direction on one side thereof facing the upper support (2) along the Z direction; the plurality of slots (11) are located on both sides of the first wiring space along the Y direction; and the plurality of busbars (5) are respectively located in the corresponding slots (11); and the branches of the lower wiring harness (3) and the branches of the upper wiring harness (4) are respectively connected to the corresponding busbars (5).

3. The sampling assembly according to claim 2, characterized in that The slot (11) has a plurality of buckles (111), and the busbar (5) is limited by the buckles (111).

4. The sampling assembly according to claim 2, characterized in that The slot (11) has a positioning column (112) protruding along the Z direction toward one side of the busbar (5), and the busbar (5) has a positioning hole (50), which can be sleeved on the positioning column (112).

5. The sampling assembly according to claim 2, characterized in that The lower bracket (1) has a limiting groove (12) on one side facing the upper bracket (2) along the Z direction, and the upper bracket (2) has a limiting protrusion (21) on one side facing the lower bracket (1) along the Z direction. The limiting protrusion (21) is inserted into the limiting groove (12), so that the movement of the upper bracket (2) relative to the lower bracket (1) is restricted.

6. The sampling assembly according to claim 5, characterized in that The inner wall of the limiting groove (12) is provided with a limiting block (121), and the limiting protrusion (21) has a notch (211) for use with the limiting block (121). The limiting block (121) is inserted into the notch (211), so that the movement of the upper bracket (2) relative to the lower bracket (1) is restricted.

7. The sampling assembly according to claim 5, characterized in that The upper support (2) comprises an upper main body (22) and a plurality of extended side plates (23), wherein the plurality of extended side plates (23) are staggeredly arranged on both sides of the upper main body (22) along the Y direction, and the first wiring space is formed between the upper main body (22) and the lower support (1).

8. The sampling assembly according to claim 7, characterized in that At least part of the limiting protrusion (21) is located on the extended side plate (23).

9. The sampling assembly according to any one of claims 2 to 8, characterized in that: The lower bracket (1) and the upper bracket (2) are provided with correspondingly arranged tie holes (6), and the lower bracket (1) and the upper bracket (2) are fixed by tie ties (7) passed through the tie holes (6); The tie holes (6) are distributed along the Y direction on both sides of the lower layer wiring harness (3) and the upper layer wiring harness (4), so as to bundle the lower layer wiring harness (3) and the upper layer wiring harness (4) by the tie (7) installed in the tie holes (6).

10. A battery pack, characterized in that: The method comprises a battery module and a sampling component according to any one of claims 1 to 9, wherein the sampling component samples the voltage and temperature of the battery module.

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