Battery pack and electric equipment

Abstract

The utility model provides a battery pack and electric equipment, and relates to the technical field of lithium batteries, and the battery pack comprises a box body, a maintenance bin, a CCS assembly, a BMS module and a communication wire harness, wherein a maintenance window is formed in the side wall of the box body, and the open end of the maintenance bin is connected with the maintenance window. On the basis, the CCS assembly is located in the inner cavity of the box body, the BMS module is installed in the maintenance bin, the two ends of the communication wire harness are connected with the connecting end of the CCS assembly and the connecting end of the BMS module respectively, in other words, one part of the communication wire harness is located in the inner cavity of the box body, and the other part of the communication wire harness is located in the inner cavity of the maintenance bin. Moreover, the connecting end of the BMS module is obliquely arranged downwards, so that the communication wire harness can be wound for a longer distance during connection, namely, more communication wire harnesses are positioned between the maintenance bin and the box body of the battery pack. Therefore, according to the battery pack provided by the invention, the available space of the wire harness is increased, the extrusion force of the wire harness in the battery pack is effectively relieved, and the risk of wire harness failure is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium batteries, and in particular to a battery pack and electrical equipment. Background Art

[0002] In existing technologies, the Battery Management System (BMS) and Charge Control System (CCS) are key components. To achieve effective communication and power transmission between the BMS and CCS, wiring harnesses are typically required. These harnesses are typically located within the headroom of the battery compartment.

[0003] However, the relatively narrow headroom at the top of the battery box significantly constrains wiring harness routing. Furthermore, the need to connect multiple BMS modules and CCS components requires a large and bulky wiring harness, further exacerbating the space constraints. This can lead to significant stress during installation and use, making the wiring harness susceptible to failure. Utility Model Content

[0004] The purpose of the present invention includes providing a battery pack and electrical equipment, which can increase the available space of the wiring harness by optimizing the internal structure, thereby reducing the pressure on the wiring harness and reducing the risk of wiring harness failure.

[0005] The embodiment of the present utility model can be implemented as follows:

[0006] In a first aspect, the present invention provides a battery pack, comprising:

[0007] The box body has a maintenance window on its side wall;

[0008] A maintenance compartment, wherein an open end of the maintenance compartment is connected to the maintenance window;

[0009] CCS component, the CCS component is located in the inner cavity of the box;

[0010] BMS module, the BMS module is installed in the maintenance compartment, and the connection end of the BMS module is tilted downward;

[0011] Communication harness, the two ends of the communication harness are respectively connected to the connection ends of the CCS component and the BMS module.

[0012] In an optional embodiment, a first socket is provided at the connection end of the BMS module, and a first plug that matches the first socket is provided at one end of the communication harness.

[0013] In an optional embodiment, the battery pack further includes a fire detector and a fire wiring harness. The fire detector is installed in the maintenance compartment, and both ends of the fire wiring harness are connected to the CCS component and the fire detector respectively.

[0014] In an optional embodiment, a second socket is provided at the connection end of the fire detector, and a second plug that matches the second socket is provided at one end of the fire harness.

[0015] In an optional embodiment, the connection end of the fire detector is arranged to be inclined downward.

[0016] In an alternative embodiment, the fire detector is located below the BMS module.

[0017] In an optional embodiment, the battery pack further includes a liquid cooling plate, which is sealed to the open end of the box.

[0018] In an optional embodiment, the maintenance compartment is detachably connected to the maintenance window.

[0019] In an optional embodiment, the battery pack further includes a connecting flange, and the maintenance compartment is detachably connected to the maintenance window via the connecting flange.

[0020] In a second aspect, the present invention provides an electrical device comprising a battery pack according to any one of the aforementioned embodiments.

[0021] The battery pack and electrical equipment provided by the present invention have the following beneficial effects:

[0022] The present utility model provides a battery pack and electrical equipment, including a case, a maintenance compartment, a CCS component, a BMS module and a communication harness. A maintenance window is provided on the side wall of the case, and the open end of the maintenance compartment is connected to the maintenance window. On the basis of the above, the CCS component is located in the inner cavity of the case, the BMS module is installed in the maintenance compartment, and the two ends of the communication harness are respectively connected to the connection ends of the CCS component and the BMS module. In other words, part of the communication harness is located in the inner cavity of the case, and part is located in the inner cavity of the maintenance compartment, and is fully accommodated in the battery pack. In addition, the connection end of the BMS module is tilted downward, which enables the communication harness to travel a longer distance when connected, that is, more communication harnesses are located between the maintenance compartment and the case of the battery pack. Based on this, the battery pack provided by the present application increases the available space for the harness, reduces the difficulty of installing the harness, and effectively alleviates the squeezing force of the harness in the battery pack. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0024] Figure 1 A schematic diagram of the structure of the battery pack provided in this embodiment;

[0025] Figure 2 Provided for this embodiment Figure 1 A partial enlarged schematic diagram;

[0026] Figure 3 A schematic diagram of the structure of the fire extinguisher provided in this embodiment;

[0027] Figure 4 This is a schematic structural diagram of the fire silo from another perspective provided in this embodiment.

[0028] Icons: 10-battery pack; 100-box; 200-maintenance compartment; 300-CCS assembly; 400-BMS module; 500-fire detector; 600-liquid cooling plate; 700-connecting flange; 910-communication wiring harness; 930-fire wiring harness. DETAILED DESCRIPTION

[0029] In conventional battery packs, the space above the battery case is relatively narrow, and the wiring harness is subject to significant spatial constraints when arranged. In this case, the wiring harness is subject to stress due to squeezing during installation and use.

[0030] In response to the above problems, the present invention provides a battery pack and electrical equipment, which can increase the available space of the wiring harness by optimizing the internal structure, thereby reducing the pressure on the wiring harness and reducing the risk of wiring harness failure.

[0031] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0032] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are intended to fall within the scope of protection of the present invention.

[0033] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0034] In the description of the present invention, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the utility model product is usually placed when in use. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0035] In addition, the terms "first", "second", etc., if used, are merely used to distinguish and describe, and should not be understood as indicating or implying relative importance.

[0036] It should be noted that, in the absence of conflict, the features in the embodiments of the present invention can be combined with each other.

[0037] Figure 1 This is a schematic structural diagram of the battery pack 10 provided in this embodiment. Figure 2 Provided for this embodiment Figure 1 For a partial enlarged diagram, please refer to Figure 1 and Figure 2 The present invention provides a battery pack 10 for use in electrical equipment, including a box 100, a maintenance compartment 200, a CCS component 300, a BMS module 400 and a communication harness 910.

[0038] A maintenance window is provided on the side wall of the housing 100, and the open end of the maintenance compartment 200 is connected to the maintenance window, thereby connecting the interior of the housing 100 with the interior of the maintenance compartment 200. Based on this, the CCS assembly 300 is located within the interior of the housing 100, and the BMS module 400 is installed in the maintenance compartment 200. The two ends of the communication harness 910 are connected to the connection ends of the CCS assembly 300 and the BMS module 400, respectively.

[0039] In other words, the communication harness 910 is partially located within the inner cavity of the housing 100 and partially within the inner cavity of the maintenance compartment 200, fully contained within the battery pack 10. Furthermore, the connection end of the BMS module 400 is tilted downward, increasing the distance between it and the output end of the CCS assembly 300. This allows the communication harness 910 to travel a longer distance during connection, meaning that more of the communication harness 910 is located between the maintenance compartment 200 and the housing 100 of the battery pack 10.

[0040] Based on the above-mentioned space setting, the battery pack 10 provided in this application increases the available space of the wiring harness by optimizing the internal structure, reduces the difficulty of installing the wiring harness, effectively alleviates the extrusion force of the wiring harness in the battery pack 10, and reduces the risk of failure caused by the wiring harness pulling on the nickel sheet on the CCS, thereby extending the service life, stability and safety of the wiring harness and even the entire battery pack 10.

[0041] In some embodiments, the maintenance compartment 200 is detachably connected to the maintenance window to facilitate easy opening and closing of the maintenance compartment 200. As will be readily appreciated, when internal components need to be replaced or repaired, the maintenance compartment 200 can be removed to quickly complete the operation, reducing maintenance time and costs.

[0042] To further enhance the connection strength and stability, the battery pack 10 also includes a connecting flange 700, which detachably connects the maintenance compartment 200 to the maintenance window. It should be noted that the connecting flange 700, as a common mechanical connector, not only has high mechanical strength, ensuring a secure connection between the maintenance compartment 200 and the maintenance window, but also effectively transmits and disperses vibration, reducing the possibility of loosening or damage to the maintenance compartment 200 during use.

[0043] Considering the high frequency of maintenance required for the BMS module 400 within the battery pack 10, a first socket is provided at the connection end of the BMS module 400, and a first plug is provided at one end of the communication harness 910 to mate with the first socket. As will be readily appreciated, the interaction between the first socket and the first plug allows maintenance personnel to quickly disconnect and connect the BMS module 400 to the communication harness 910, reducing the time required to repair and replace the BMS module 400 and improving maintenance efficiency.

[0044] In some embodiments, to facilitate timely fire detection, the battery pack 10 further includes a fire detector 500 and a firefighting harness 930. The fire detector 500 is installed within the maintenance compartment 200, and the firefighting harness 930 is connected at both ends to the CCS assembly 300 and the fire detector 500, respectively. Based on this arrangement, the firefighting harness 930 is partially located within the inner cavity of the housing 100 and partially within the inner cavity of the maintenance compartment 200, effectively alleviating the compressive forces within the battery pack 10.

[0045] Similar to the above, the connection end of the fire detector 500 is tilted downward, increasing the distance between it and the output end of the CCS assembly 300. This also allows the firefighting wiring harness 930 to be routed a longer distance during connection. Consequently, more firefighting wiring harness 930 is located between the maintenance compartment 200 and the housing 100, preventing the wiring harness from being squeezed in the narrow space and reducing the risk of insulation damage and short circuits caused by squeezing.

[0046] Considering the high frequency of maintenance required for the fire detector 500 within the battery pack 10, a second socket is provided at the connection end of the fire detector 500, and a second plug is provided at one end of the fire harness 930 to mate with the second socket. As will be readily appreciated, the interaction between the second socket and the second plug allows maintenance personnel to quickly disconnect and connect the fire detector 500 to the fire harness 930, reducing the time required to repair and replace the fire detector 500 and improving maintenance efficiency.

[0047] See also Figures 2 to 4 Considering the larger size of the BMS module 400 and the smaller size of the fire detector 500, the fire detector 500 is located below the BMS module 400. As can be appreciated, due to the larger size of the BMS module 400, placing it above leaves more space below. Placing the fire detector 500 below the BMS module 400 fully utilizes the internal space of the fire compartment, resulting in a more compact layout.

[0048] Please refer again Figure 1 and Figure 2 To properly address thermal management issues within the battery pack 10, the battery pack 10 also includes a liquid cooling plate 600, which is sealed to the open end of the housing 100. As will be readily understood, the liquid cooling plate 600 removes heat generated within the battery pack 10 through liquid circulation, providing efficient heat dissipation and ensuring that the batteries maintain optimal operating conditions even in high-temperature environments.

[0049] It should also be noted that during the use of the liquid cooling plate 600, due to the temperature difference between the liquid cooling plate 600 and the communication harness 910, the air inside the battery pack 10 condenses on the communication harness 910 to form condensation. Since the connection end of the BMS module 400 is tilted downward, the condensation cannot slide along the communication harness 910 to the connection end of the BMS module 400, and thus cannot enter the BMS module 400, affecting the performance of the BMS module 400. Similarly, when the connection end of the fire detector 500 is tilted downward, the condensation on the fire harness 930 cannot slide along the harness to the connection end of the fire detector 500, which will not be described in detail in this application.

[0050] In summary, the present invention provides a battery pack 10 comprising a housing 100, a maintenance compartment 200, a CCS assembly 300, a BMS module 400, and a communication harness 910. A maintenance window is provided on the side wall of the housing 100, and the open end of the maintenance compartment 200 is connected to the maintenance window. Based on the above, the CCS assembly 300 is located within the interior of the housing 100, the BMS module 400 is installed within the maintenance compartment 200, and the two ends of the communication harness 910 are connected to the connection ends of the CCS assembly 300 and the BMS module 400, respectively. In other words, the communication harness 910 is partially located within the interior of the housing 100 and partially located within the interior of the maintenance compartment 200, fully contained within the battery pack 10. Furthermore, the connection end of the BMS module 400 is tilted downward, enabling the communication harness 910 to travel a longer distance during connection, meaning that more of the communication harness 910 is located between the maintenance compartment 200 and the housing 100 of the battery pack 10. Based on this, the battery pack 10 provided in the present application increases the available space of the wiring harness, effectively alleviates the squeezing force of the wiring harness in the battery pack 10, and reduces the risk of wiring harness failure.

[0051] In addition, the utility model provides an electrical device, which includes the battery pack 10 of the aforementioned embodiment. Therefore, the electrical device can also optimize the internal structure, increase the available space of the wiring harness, reduce the difficulty of installing the wiring harness, and effectively alleviate the extrusion force of the wiring harness in the battery pack 10.

[0052] The above is only a specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any changes or replacements that can be easily thought of by any technician familiar with this technical field within the technical scope disclosed in the present invention should be covered by the protection scope of the present invention.

Claims

1. A battery pack, characterized in that: include: A box body (100), wherein a maintenance window is provided on a side wall of the box body (100); A maintenance compartment (200), wherein an open end of the maintenance compartment (200) is connected to the maintenance window; A CCS assembly (300), the CCS assembly (300) being located in the inner cavity of the housing (100); A BMS module (400), the BMS module (400) being installed in the maintenance compartment (200), and the connection end of the BMS module (400) being arranged tilted downward; A communication harness (910), two ends of which are respectively connected to the connection ends of the CCS assembly (300) and the BMS module (400).

2. The battery pack according to claim 1, wherein: A first socket is provided at a connection end of the BMS module (400), and a first plug that matches the first socket is provided at one end of the communication harness (910).

3. The battery pack according to claim 2, wherein: The battery pack (10) further comprises a fire detector (500) and a fire harness (930); the fire detector (500) is installed in the maintenance compartment (200); and two ends of the fire harness (930) are respectively connected to the CCS assembly (300) and the fire detector (500).

4. The battery pack according to claim 3, wherein: The connection end of the fire detector (500) is provided with a second socket, and one end of the fire harness (930) is provided with a second plug that matches the second socket.

5. The battery pack according to claim 3, wherein: The connection end of the fire detector (500) is arranged to be tilted downward.

6. The battery pack according to claim 3, characterized in that: The fire detector (500) is located below the BMS module (400).

7. The battery pack according to any one of claims 1 to 6, characterized in that: The battery pack (10) further includes a liquid cooling plate (600), and the liquid cooling plate (600) is sealed to the open end of the box (100).

8. The battery pack according to any one of claims 1 to 6, characterized in that: The maintenance compartment (200) is detachably connected to the maintenance window.

9. The battery pack according to claim 8, characterized in that: The battery pack (10) further comprises a connecting flange (700), and the maintenance compartment (200) is detachably connected to the maintenance window via the connecting flange (700).

10. An electrical device, characterized in that: A battery pack comprising any one of claims 1 to 9.

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