Limiting piece and battery pack

Abstract

The utility model describes a limiting piece and a battery pack, the limiting piece is applied to the battery pack, the limiting piece is provided with a wire groove and a limiting groove which are adjacently arranged, the wire groove is used for limiting a wire harness, and the limiting groove is used for accommodating a sensor. Therefore, the limiting piece can limit the wire harness in the wire groove, so that the phenomenon that the occupied space is large due to binding of a traditional binding belt is effectively avoided, and the arrangement of the wire harness is more regular and orderly. Besides, the limiting piece is further provided with a limiting groove used for containing the sensor, so that the sensor can be stably installed at a preset position, accuracy and reliability of sensor signals are ensured, planning of a connecting line of the sensor is facilitated, and line management in the battery pack can be further optimized.

Description

Technical Field

[0001] This utility model relates to the field of battery technology, and in particular to a limiting member and a battery pack. Background Technology

[0002] The battery connection system, often abbreviated as CCS, is the core component in a battery pack used to connect individual battery cells. The battery connection system has numerous connecting harnesses.

[0003] Currently, cable ties are commonly used to secure wire harnesses, and temperature sensors also require additional fasteners for fixation and wire routing. This results in a complex internal battery pack structure. Various wire harnesses are typically bundled to the insulating supports of the battery connection system using cable ties. The thickness of the cable ties themselves contributes to the large space occupied by the bundled harnesses. Furthermore, the irregular shapes of the bundled harnesses can cause them to interfere with other internal components of the battery pack, affecting the internal space layout and operational efficiency. Utility Model Content

[0004] In view of the above-mentioned existing situation, this application provides a limiting member and a battery pack, which can improve the problem of interference with the internal components of the battery pack caused by wire harness binding.

[0005] In a first aspect, this utility model provides a limiting member applied to a battery pack. The limiting member has adjacently arranged wire grooves and limiting grooves. The wire grooves are used to limit wire harnesses, and the limiting grooves are used to accommodate sensors.

[0006] Optionally, the limiting member includes a base plate, a connecting part, and a top plate. The connecting part connects the top plate and the base plate, and the top plate and the base plate are spaced apart to form a wire groove through which the wire harness passes.

[0007] Optionally, the limiting member has a wire inlet for inserting the wire harness between the top plate and the bottom plate.

[0008] Optionally, the wire groove extends along a first direction; the wire inlet extends along a second direction, the second direction forming an angle with the first direction.

[0009] Optionally, the base plate is provided with a receiving groove, which is connected to the wire groove and is disposed opposite to the top plate.

[0010] Optionally, the limiting groove is formed in the connecting part, the connecting part includes a side wall surrounding the limiting groove, and a through hole is formed on the side wall. The through hole communicates with the limiting groove and the external space, and the through hole is used to pass through a connecting wire that is electrically connected to the sensor.

[0011] Optionally, the limiting member also has an observation hole, which communicates with the limiting groove to expose at least part of the sensor's indicator light.

[0012] Secondly, the present invention provides a battery pack, the battery pack comprising: a limiting member as described above; a wire harness passing through the wire groove; and a sensor located within the limiting groove.

[0013] Optionally, the wire harness includes multiple wires, the limiting member includes a base plate, a connecting portion, and a top plate, the connecting portion connects the top plate and the base plate respectively, the top plates are spaced apart and parallel to the base plate to form a wire groove through which the wire harness passes, and the multiple wires are arranged sequentially in the wire groove along the extension direction of the top plate; and / or, the wire harness includes multiple wires, the limiting member includes a base plate, a connecting portion, and a top plate, the connecting portion connects the top plate and the base plate respectively, the top plates are spaced apart and parallel to the base plate to form a wire groove through which the wire harness passes, and each wire abuts between the top plate and the base plate of the limiting member.

[0014] Optionally, the battery pack further includes an insulating bracket and a battery module, the insulating bracket being located on one side of the battery module; the limiting member is at least partially located on the side of the bracket away from the battery module, and the maximum distance from the end of the limiting member away from the battery module to the battery module is not greater than the maximum distance from the end of the insulating bracket away from the battery module to the battery module.

[0015] This utility model relates to a limiting component applied to a battery pack. The limiting component has adjacently arranged wire grooves and limiting slots. The wire grooves limit the wire harness, and the limiting slots accommodate sensors. Thus, the limiting component can confine the wire harness within the wire grooves, effectively avoiding the large space occupation caused by traditional cable ties, resulting in a more regular and orderly arrangement of the wire harness. Furthermore, the limiting component also has a limiting slot for accommodating sensors, allowing the sensors to be securely installed in a preset position, ensuring the accuracy and reliability of the sensor signals, and also facilitating the planning of sensor connection lines, thereby further optimizing the wiring management within the battery pack. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings, wherein the same reference numerals in the following description denote the same parts.

[0018] Figure 1 This is a schematic diagram showing the overall structure of the limiting component involved in this application.

[0019] Figure 2 This is another overall structural schematic diagram of the limiting member involved in this application.

[0020] Figure 3 This is another overall structural schematic diagram of the limiting member involved in this application.

[0021] Figure 4 This is another overall structural schematic diagram of the limiting member involved in this application.

[0022] Figure 5 This is a partial schematic diagram of the battery pack involved in this application.

[0023] Reference numerals: 100, limiting component; 200, wire harness; 1, wire groove; 2, limiting groove; 3, base plate; 4, top plate; 5, connecting part; 6, wire inlet; 7, receiving groove; 8, through hole; 9, observation hole; 10, insulating bracket; 11, aluminum busbar; 12, connecting post. Detailed Implementation

[0024] The preferred embodiments of this application will now be described in detail with reference to the accompanying drawings. In the following description, the same reference numerals are used for the same components, and repeated descriptions are omitted. Furthermore, the drawings are merely schematic diagrams, and the proportions of the components or their shapes may differ from actual dimensions. It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationships and movement of the components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0025] It should also be noted that when a component is described as "fixed to" or "set on" another component, it can be directly on the other component or there may be an intervening component present. When a component is described as "connected to" another component, it can be directly connected to the other component or there may be an intervening component present.

[0026] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4This application provides a limiting member 100 applied to a battery pack. The limiting member 100 has adjacently arranged wire grooves 1 and locating grooves 2. The wire groove 1 limits the wire harness 200, and the locating groove 2 accommodates a sensor. Thus, the limiting member 100 can confine the wire harness 200 within the wire groove 1, effectively avoiding the large space occupation caused by traditional cable ties, and making the arrangement of the wire harness 200 more regular and orderly. This limiting member 100 can improve the problem of excessive stacking of the wire harness 200 and interference with internal components of the battery pack caused by cable ties in related technologies. Furthermore, the limiting member 100 also has locating grooves 2 for accommodating sensors, allowing the sensors to be securely installed in a preset position, ensuring the accuracy and reliability of the sensor signals, and also facilitating the planning of sensor connection lines, thereby further optimizing the wiring management within the battery pack.

[0027] Reference Figure 4 In some embodiments, the limiting member 100 has two limiting grooves 2, and the two limiting grooves 2 are located on both sides of the wire groove 1. Therefore, the placement of the limiting grooves 2 not only optimizes space utilization but also significantly improves the overall layout. The symmetrical position of the two limiting grooves 2 ensures the balance of the sensor and wire harness 200 during installation, reducing installation difficulty and wiring confusion caused by asymmetry. This makes it easier for staff to organize the wiring, and the clear wiring layout can greatly improve work efficiency, reduce error rates, and also facilitate subsequent maintenance.

[0028] Reference Figure 1 In some embodiments, the limiting member 100 includes a base plate 3, a connecting portion 5, and a top plate 4. The connecting portion 5 connects the top plate 4 and the base plate 3. The top plate 4 and the base plate 3 are spaced apart to form a wire groove 1 through which the wire harness 200 passes. In some examples, the top plate 4 and the base plate 3 are parallel, resulting in a uniform space within the wire groove 1, which facilitates the even arrangement of the wire harness 200 and prevents severe stacking of the wire harness 200 within the wire groove 1. Conversely, if the top plate 4 is not parallel to the base plate 3, such as if the top plate 4 has a partially arched structure, the space within the wire groove 1 will be uneven. Areas with larger spaces within the wire groove 1 are prone to wire harness 200 stacking, leading to a messy wire harness 200.

[0029] Reference Figure 1 In some embodiments, the limiting member 100 has an inlet 6 for inserting the wire harness 200 between the top plate 4 and the bottom plate 3. Thus, the inlet 6 provides an entrance and exit for the wire harness 200, facilitating the insertion and removal of the wire harness 200 by personnel. Especially during later maintenance, when personnel need to adjust the wire harness 200, they can do so through the inlet 6 without having to completely disassemble the limiting member 100, making it more convenient and flexible to use.

[0030] Reference Figure 2 In some embodiments, the wire groove 1 extends along a first direction; the wire inlet 6 extends along a second direction, forming an angle with the first direction. Specifically, the direction in which the wire groove 1 extends can also be understood as the direction in which the wire harness 200 passes through, so the extension direction of the wire inlet 6 is inclined relative to the direction in which the wire harness 200 passes through. Thus, the second direction of the wire inlet 6 forming an angle with the first direction can prevent the wire harness 200 from running out of the wire inlet 6, allowing the wire harness 200 to be better confined within the wire groove 1. Conversely, if the second direction is parallel to the first direction, the wire harness 200 can easily run out of the wire inlet 6, which is not conducive to confining the wire harness 200.

[0031] Reference Figure 1 In some embodiments, the base plate 3 is provided with a receiving groove 7, which communicates with the wire groove 1 and is disposed opposite to the top plate 4. Specifically, after the wire harness 200 passes through the wire groove 1, the portion of the wire harness 200 corresponding to the receiving groove 7 can be bent towards the receiving groove 7 and partially embedded in the receiving groove 7. Thus, the receiving groove 7 provides a space for the wire harness 200 to be received, and the top plate 4 and the base plate 3 will not excessively clamp the wire harness 200. On the one hand, the receiving groove 7 can prevent the wire harness 200 from excessively pressing against the top plate 4, causing the top plate 4 to deform and bulge. On the other hand, the receiving groove 7 can also play a role in heat dissipation, providing a heat dissipation space for the components inside the battery pack, which is conducive to airflow inside the battery pack and effectively improves the heat dissipation efficiency inside the battery pack. Specifically, the position of the receiving groove 7 can correspond to the explosion-proof valve of the battery cell, and the receiving groove 7 can also provide a pressure relief space for the explosion-proof valve of the battery cell. Secondly, the receiving slot 7 can also reduce the weight of the limiting member 100, making the entire battery pack lighter.

[0032] In some examples, the limiting member 100 can be integrally molded. This integrally molded limiting member 100 structure, lacking seams or connection points, significantly enhances its overall integrity. This seamless structure not only improves the stability of the limiting member 100 but also strengthens its resistance to external forces. On one hand, the integrally molded limiting member 100 structure is more stable and robust, better resisting external forces, thus better limiting the wire harness 200 within the wire groove 1 and preventing the wire harness 200 from stacking and deforming the limiting member 100. On the other hand, the integrally molded limiting member 100 better protects the sensor, making it more resistant to pressure and preventing the sensor from being squeezed, thereby protecting its normal operation. This is particularly important for sensors requiring high precision and stability, as any minor deformation or damage can lead to performance degradation or even failure. Furthermore, in terms of manufacturing, the integrally molded limiting member 100 simplifies the assembly process, as it eliminates the need for splicing and fixing multiple components, reducing assembly time and complexity. This not only lowers production costs but also improves production efficiency. In mass production, this efficiency improvement can significantly reduce overall production costs. In some examples, the limiter 100 can be made of high-strength plastic to give it high strength.

[0033] Reference Figure 1 and Figure 4 In some embodiments, the limiting groove 2 is formed in the connecting portion 5, which includes a sidewall surrounding the limiting groove 2. A through hole 8 is formed on the sidewall, communicating with the limiting groove 2 and the external space. The through hole 8 is used to pass through a connecting wire electrically connected to the sensor. Thus, the through hole 8 provides a space for the sensor's connecting wire to pass through, allowing operators to arrange the wires according to the internal layout of the battery pack and the sensor's location, ensuring neat and orderly wiring and avoiding a messy layout within the battery pack. This not only reduces interference between wires but also facilitates subsequent maintenance and troubleshooting. In some examples, the through hole 8 can be located in a first direction, allowing the sensor's connecting wire to align with the wiring harness 200 passing through the wire groove 1, effectively reducing the risk of mutual interference and avoiding a chaotic layout within the battery pack.

[0034] Reference Figure 3 In some embodiments, the limiting member 100 also has an observation hole 9, which communicates with the limiting groove 2 to expose at least part of the sensor's indicator light. This allows operators to check the sensor's operating status through the observation hole 9, accelerating problem diagnosis and resolution during maintenance and troubleshooting.

[0035] This application also provides a battery pack, which includes the aforementioned limiting member 100, wiring harness 200, and sensor. The wiring harness 200 passes through the wiring groove 1, and the sensor is located within the limiting groove 2. Specifically, the sensor can be a temperature sensor. This temperature sensor can be a thermistor, which measures temperature by utilizing the characteristic of resistance changing with temperature. Based on the temperature data, the battery pack's control system can take corresponding measures, such as adjusting the cooling system, to maintain the battery pack within a suitable temperature range, ensuring the battery operates within its optimal temperature range, avoiding overheating or overcooling, thereby extending battery life and ensuring safety.

[0036] In some embodiments, the wire harness 200 includes multiple wires, and the limiting member 100 includes a base plate 3, a connecting portion 5, and a top plate 4. The connecting portion 5 connects the top plate 4 and the base plate 3 respectively. The top plate 4 is spaced apart and parallel to the base plate 3 to form a wire groove 1 through which the wire harness 200 passes. The multiple wires are arranged sequentially in the wire groove 1 along the extension direction of the top plate 4. The distance between the top plate 4 and the base plate 3 is less than twice the diameter of the wires. It can be understood that since the distance between the top plate 4 and the base plate 3 is less than twice the diameter of the wires, only one layer of wires is allowed to be laid flat between the top plate 4 and the base plate 3, and two wires are not allowed to overlap. Thus, multiple wires can be laid flat on the base plate 3 as a single layer, thereby making the arrangement of the wires more regular and orderly.

[0037] In some embodiments, the wiring harness 200 includes multiple wires, and the limiting member 100 includes a base plate 3, a connecting portion 5, and a top plate 4. The connecting portion 5 connects the top plate 4 and the base plate 3 respectively. The top plate 4 is spaced apart and parallel to the base plate 3 to form a wire groove 1 through which the wiring harness 200 passes. Each wire abuts between the top plate 4 and the base plate 3 of the limiting member 100. Thus, each wire is clamped between the top plate 4 and the base plate 3, making it less likely for two wires to overlap. This not only reduces the disorder of the wiring harness 200 but also effectively avoids signal interference or electrical faults that may occur due to overlap. Secondly, the multiple wires do not overlap, thus preventing the wires from lifting the top plate 4 and avoiding potential interference with other components inside the battery pack. This design ensures that the internal space of the battery pack is not occupied by the disorderly layout of the wiring harness 200, maintaining the neatness of the device's interior.

[0038] Reference Figure 5In some embodiments, the battery pack further includes an insulating support 10 and a battery module (not shown in the figure). The insulating support 10 is located on one side of the battery module. A limiting member 100 is at least partially located on the side of the insulating support 10 facing away from the battery module, and the maximum distance from the end of the limiting member 100 facing away from the battery module to the battery module is not greater than the maximum distance from the end of the insulating support 10 facing away from the battery module to the battery module. Therefore, the limiting member will not protrude from the surface of the insulating support 10. In some examples, the highest point of the limiting member 100 can also be flush with the surface of the insulating support 10, thereby ensuring that the height of the wiring harness 200 does not exceed the insulating support 10, preventing interference between the wiring harness 200 or the limiting member 100 and other components inside the battery pack. The insulating support 10 is the main mounting structure of the battery connection system and can be used to accommodate components such as current sensors and communication modules, thereby enhancing the overall integrity of the internal components of the battery pack and preventing the internal components from becoming too fragmented. Furthermore, the insulating support 10 also provides protection for the battery module, enhancing its performance, safety, and reliability.

[0039] Reference Figure 5 In some embodiments, the battery pack further includes an aluminum busbar 11 located on top of the battery module, with an insulating bracket 10 connected to the side of the aluminum busbar 11 facing away from the battery module. The aluminum busbar 11 has a connecting hole, and the limiting member 100 has a connecting post 12 located below the aluminum busbar 11. The connecting post 12 passes through the connecting hole to be riveted and fixed to the aluminum busbar 11.

[0040] In summary, the limiting member 100 provided in this application can confine the wire harness 200 within the wire groove 1, thereby effectively avoiding the large space occupation caused by traditional cable ties and making the arrangement of the wire harness 200 more regular and orderly. Furthermore, the limiting member 100 also has a limiting groove 2 for accommodating sensors, allowing the sensors to be securely installed in a preset position, ensuring the accuracy and reliability of the sensor signals, and also facilitating the planning of sensor connection lines, thereby further optimizing the wiring management within the battery pack.

[0041] In the description of this application, 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 technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0042] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0043] The embodiments, implementation methods, and related technical features of this application can be combined and substituted for each other without conflict.

[0044] The above are merely preferred embodiments of this application and are not intended to limit this application in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this application without departing from the scope of the technical solution of this application shall still fall within the scope of the technical solution of this application.

[0045] Although the present invention has been specifically described above in conjunction with the accompanying drawings and embodiments, it is to be understood that the above description does not limit the present invention in any way. Those skilled in the art can make modifications and variations to the present invention as needed without departing from the essential spirit and scope of the present invention, and all such modifications and variations fall within the scope of the present invention.

Claims

1. A limiting member, characterized in that, Applied to a battery pack, the limiting member has adjacently arranged wire grooves and limiting grooves. The wire grooves are used to limit the wire harness, and the limiting grooves are used to accommodate the sensor.

2. The limiting member according to claim 1, characterized in that, The limiting component includes a base plate, a connecting part, and a top plate. The connecting part connects the top plate and the base plate. The top plate and the base plate are spaced apart to form a wire groove through which the wire harness passes.

3. The limiting member according to claim 2, characterized in that, The limiting member has an inlet for inserting a wire harness between the top plate and the bottom plate.

4. The limiting member according to claim 3, characterized in that, The groove extends along a first direction; The inlet extends along a second direction, which forms an angle with the first direction.

5. The limiting member according to claim 2, characterized in that, The base plate is provided with a receiving groove, which is connected to the wire groove and is disposed opposite to the top plate.

6. The limiting member according to claim 2, characterized in that, The limiting groove is formed in the connecting part, and the connecting part includes a side wall surrounding the limiting groove. A through hole is formed on the side wall, and the through hole communicates with the limiting groove and the external space. The through hole is used to pass through a connecting wire that is electrically connected to the sensor.

7. The limiting member according to claim 5, characterized in that, The limiting member is also provided with an observation hole, which is connected to the limiting groove and is used to expose at least part of the indicator light of the sensor.

8. A battery pack, characterized in that, The battery pack includes: a limiting member as described in any one of claims 1-7; A wire harness, wherein the wire harness is inserted into the wire groove; A sensor, which is located within the limiting groove.

9. The battery pack according to claim 8, characterized in that, The wire harness includes multiple wires. The limiting member includes a base plate, a connecting portion, and a top plate. The connecting portion connects the top plate and the base plate respectively. The top plates are spaced apart and parallel to the base plate to form wire grooves through which the wire harness passes. The multiple wires are arranged sequentially in the wire grooves along the extension direction of the top plate. The distance between the top plate and the base plate is less than twice the diameter of the wires; and / or, The wire harness includes multiple wires, and the limiting member includes a base plate, a connecting part and a top plate. The connecting part connects the top plate and the base plate respectively. The top plate is spaced apart and parallel to the base plate to form a wire groove through which the wire harness passes. Each wire abuts between the top plate and the base plate of the limiting member.

10. The battery pack according to claim 8, characterized in that, The battery pack also includes an insulating bracket and a battery module, with the insulating bracket located on one side of the battery module; The limiting member is at least partially located on the side of the bracket away from the battery module, and the maximum distance from the end of the limiting member away from the battery module to the battery module is not greater than the maximum distance from the end of the insulating bracket away from the battery module to the battery module.

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