Battery packs and vehicles

Abstract

This utility model discloses a battery compartment and a vehicle. The battery pack includes a battery compartment, a control module, and a first maintenance cover. A first maintenance hole is provided on the wall of the battery compartment. The control module is installed inside the battery compartment and includes multiple electrical components. At least one electrical component can be accessed and repaired through the first maintenance hole. The first maintenance cover is detachably connected to the battery compartment to cover the first maintenance hole. The electrical components in the battery pack provided by this utility model are easy to repair, resulting in advantages such as low operating costs and high resource utilization.

Description

Technical Field

[0001] This utility model relates to the field of battery pack technology, specifically to a battery pack and a vehicle. Background Technology

[0002] In related technologies, battery packs typically include a battery compartment and a control module and battery modules housed within it. To prevent the control module and battery modules from shifting within the battery compartment, foam potting compound is usually used to fill the gaps inside. However, if the fragile electrical components within the control module fail, the entire pack must be scrapped, resulting in resource waste and increased costs. Utility Model Content

[0003] This utility model aims to at least partially solve one of the technical problems in the related art.

[0004] Therefore, embodiments of this utility model propose a battery pack in which the electrical components are easy to maintain, resulting in the battery pack having the advantages of low operating costs and high resource utilization.

[0005] The battery pack of this utility model embodiment includes a battery compartment, a control module, and a first maintenance cover. The battery compartment has a first maintenance hole on its wall. The control module is installed inside the battery compartment and includes multiple electrical components. At least one of the electrical components can be accessed and maintained through the first maintenance hole. The first maintenance cover is detachably connected to the battery compartment to cover the first maintenance hole.

[0006] According to the battery pack of this utility model embodiment, a first maintenance hole is provided on the wall of the battery compartment, and a first maintenance cover is detachably connected to the battery compartment to cover the first maintenance hole, thereby preventing the control module inside the battery compartment from being exposed and affecting its service life. Furthermore, by placing at least one easily damaged electrical component on the control module near the first maintenance hole, the first maintenance cover can be removed after the easily damaged electrical component fails, and the damaged electrical component can be repaired through the first maintenance hole. This ensures the normal operation of the control module, eliminating the need to scrap the entire battery pack, resulting in lower battery pack usage costs and higher resource utilization.

[0007] In some embodiments, the battery pack further includes a sealing ring sandwiched between the first service cover and the battery compartment, the sealing ring surrounding the first service hole.

[0008] In some embodiments, the first maintenance cover is connected to the battery compartment by fasteners.

[0009] In some embodiments, the outer surface of the battery compartment is provided with a countersunk hole communicating with the first maintenance hole, the area of ​​the countersunk hole being larger than the area of ​​the first maintenance hole, and the first maintenance cover being disposed in the countersunk hole.

[0010] In some embodiments, the control module further includes a protective housing, the electrical component is disposed within the protective housing, the protective housing includes a side plate located between the electrical component and the first maintenance hole, the side plate is provided with thinning grooves, the thinning grooves are multiple and arranged circumferentially along the first maintenance hole, or the thinning grooves extend circumferentially along the first maintenance hole and are connected end to end, on a projection plane perpendicular to the axial direction of the first maintenance hole, the projection of the area of ​​the side plate surrounded by the thinning grooves is located within the projection of the first maintenance hole.

[0011] In some embodiments, the control module further includes a protective shell and a second maintenance cover. The electrical components are disposed inside the protective shell. The protective shell has a second maintenance hole that connects the first maintenance hole and the inner cavity of the protective shell. The second maintenance cover is detachably connected to the protective shell and seals the second maintenance hole.

[0012] In some embodiments, the battery pack further includes a plurality of circuit boards electrically connected to each other, and each circuit board is provided with the electrical components.

[0013] In some embodiments, at least one of the circuit boards and its electrical components are accessible through the first service hole.

[0014] In some embodiments, any of the circuit boards is soldered or plugged into at least one of the remaining circuit boards.

[0015] In some embodiments, there are multiple first maintenance holes and multiple first maintenance covers, and they correspond one-to-one with each other.

[0016] The vehicle according to an embodiment of the present invention includes a battery pack as described in any of the above embodiments.

[0017] The technical advantages of the vehicle according to this utility model embodiment are the same as the technical advantages of the battery pack in the above embodiment, and will not be repeated here. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of a battery pack according to an embodiment of the present utility model.

[0019] Figure 2 This is an exploded view of the battery pack according to an embodiment of the present utility model.

[0020] Figure 3This is a schematic diagram of the control module in the battery pack according to an embodiment of the present utility model.

[0021] Figure 4 This is a schematic diagram of the circuit board and electrical components in the battery pack according to an embodiment of the present invention.

[0022] Figure label:

[0023] 1. Battery compartment; 11. Tray; 111. First maintenance hole; 112. Countersunk hole; 12. Top cover; 2. Control module; 21. Circuit board; 22. Electrical components; 23. Protective shell; 231. Thinning groove; 232. Second maintenance cover; 3. First maintenance cover; 4. Sealing ring; 5. Fasteners; 6. Foam; 7. Battery module. Detailed Implementation

[0024] 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.

[0025] The following is combined Figures 1-4 A battery pack according to an embodiment of the present invention is described.

[0026] The battery pack of this embodiment includes a battery compartment 1, a control module 2, and a first maintenance cover 3. A first maintenance hole 111 is provided on the wall of the battery compartment 1. The control module 2 is installed inside the battery compartment 1 and includes multiple electrical components 22, at least one of which can be accessed and maintained through the first maintenance hole 111. The first maintenance cover 3 is detachably connected to the battery compartment 1 to cover the first maintenance hole 111.

[0027] According to the battery pack of this utility model embodiment, a first maintenance hole 111 is provided on the wall of the battery compartment 1, and a first maintenance cover 3 is detachably connected to the battery compartment 1 to cover the first maintenance hole 111, thereby preventing the control module 2 inside the battery compartment 1 from being exposed and affecting its service life. Moreover, by placing at least one easily damaged electrical component 22 on the control module 2 near the first maintenance hole 111, after the easily damaged electrical component 22 is damaged, the first maintenance cover 3 can be removed, and the damaged electrical component 22 can be repaired through the first maintenance hole 111, thereby ensuring the normal operation of the control module 2, eliminating the need to scrap the entire battery pack, resulting in lower battery pack usage costs and higher resource utilization.

[0028] It should be noted that the phrase "at least one electrical component 22 can be accessed and repaired through the first maintenance hole 111" refers to the size of the first maintenance hole 111, which allows the electrical component 22 to be removed through the first maintenance hole 111 for easy replacement, while also providing sufficient space for repairing the electrical component 22. The battery compartment 1 typically includes a tray 11 and a top cover 12. The top cover 12 is connected to the tray 11 and defines a receiving cavity. The receiving cavity houses the control module 2 and the battery module 7 and is filled with expanding foam 6. The expanding foam 6 fills the gaps within the receiving cavity and bonds the tray 11 and the top cover 12. The first maintenance hole 111 is located on the side wall of the tray 11, and the control module 2 is located on the side of the battery module 7 facing the first maintenance hole 111. Furthermore, the control module 2 is typically a cell monitoring unit in a battery management system.

[0029] In some embodiments, the battery pack further includes a sealing ring 4, which is sandwiched between the first maintenance cover 3 and the battery compartment 1, and surrounds the first maintenance hole 111.

[0030] The sealing ring 4 ensures the airtight connection between the first maintenance cover 3 and the battery compartment 1, effectively preventing external moisture and dust from entering the battery compartment 1 through the first maintenance hole 111 and affecting the normal operation of the control module 2, thus extending the service life of the electrical components 22 on it.

[0031] For example, such as Figure 2 As shown, the sealing ring 4 is a rubber ring or a silicone ring. The first maintenance cover 3 and the battery compartment 1 can be provided with an annular groove for the sealing ring 4 to fit on their opposite sides, thereby ensuring that the sealing ring 4 is clamped and fixed in a set position between the first maintenance cover 3 and the battery compartment 1 and is not prone to displacement or misalignment.

[0032] In some embodiments, the first maintenance cover 3 is connected to the battery compartment 1 by fasteners 5.

[0033] Compared to connection methods such as snap-fit, connecting the first maintenance cover 3 and the battery compartment 1 with fastener 5 improves the connection strength and reliability of the first maintenance cover 3 and the battery compartment 1, and makes the first maintenance cover 3 easy to install and remove, thus improving the maintenance efficiency of the electrical components 22 on the control module 2.

[0034] For example, such as Figure 1 and Figure 2 As shown, the first maintenance cover 3 has two mounting holes, and the outer surface of the battery compartment 1 has two corresponding threaded holes. The fastener 5 includes bolts, which pass through the mounting holes and are threadedly connected to the threaded holes. Both bolts are located on the outer periphery of the sealing ring 4 to prevent external moisture from entering the battery compartment 1 through the mounting holes.

[0035] In some embodiments, the outer surface of the battery compartment 1 is provided with a countersunk hole 112 that communicates with the first maintenance hole 111. The area of ​​the countersunk hole 112 is larger than the area of ​​the first maintenance hole 111, and the first maintenance cover 3 is disposed in the countersunk hole 112.

[0036] This design not only improves the aesthetics of the battery pack, but also effectively reduces the chance of the first maintenance cover 3 becoming loose due to external impacts. The first maintenance cover 3 provides a more reliable seal for the first maintenance hole 111.

[0037] For example, such as Figure 1 and Figure 2 As shown, the outer contour of the countersunk hole 112 matches the outer contour of the first maintenance cover 3. After the first maintenance cover 3 is set inside the countersunk hole 112 and connected to the battery compartment 1, the outer surface of the first maintenance cover 3 is coplanar with the outer surface of the battery compartment 1.

[0038] In some embodiments, the control module 2 further includes a protective shell 23, and the electrical component 22 is disposed inside the protective shell 23. The protective shell 23 includes a side plate located between the electrical component 22 and the first maintenance hole 111. The side plate is provided with thinning grooves 231. There are multiple thinning grooves 231 arranged circumferentially along the first maintenance hole 111. Alternatively, the thinning grooves 231 extend circumferentially along the first maintenance hole 111 and are connected end to end. On the projection plane perpendicular to the axial direction of the first maintenance hole 111, the projection of the area of ​​the side plate surrounded by the thinning grooves 231 is located within the projection of the first maintenance hole 111.

[0039] The protective shell 23 prevents the expanding foam 6 inside the battery compartment 1 from adhering to and covering the electrical component 22, thus avoiding interference with the maintenance of the electrical component 22. It also effectively prevents the expanding foam 6 from affecting the heat dissipation of the electrical component 22, which could cause the electrical component 22 to malfunction. The thinning groove 231 allows the electrical component 22 to be exposed after the first maintenance cover 3 is opened, by tearing the thinning groove 231 of the protective shell 23 with external force, and removing the part of the protective shell 23 surrounded by the thinning groove 231 through the first maintenance hole 111, thus facilitating the maintenance of the electrical component 22.

[0040] For example, such as Figure 3 As shown, the thinning groove 231 is an annular groove extending circumferentially along the first maintenance hole 111. On the projection plane perpendicular to the axial direction of the first maintenance hole 111, the projection of at least one electrical component 22 coincides with the projection of the area surrounded by the thinning groove 231.

[0041] It should be noted that after the electrical component 22 has been repaired or replaced, tape or other materials can be used to adhere to the outer surface of the protective shell 23 and seal the gap formed by the thinning groove 231 on the protective shell 23.

[0042] In some embodiments, the control module 2 further includes a protective shell 23 and a second maintenance cover 232. Electrical components 22 are disposed inside the protective shell 23. The protective shell 23 is provided with a second maintenance hole, which connects the first maintenance hole 111 and the inner cavity of the protective shell 23. The second maintenance cover 232 is detachably connected to the protective shell 23 and covers the second maintenance hole.

[0043] In other words, the first maintenance cover 3 is removed from the battery compartment 1, and the second maintenance cover 232 is removed from the protective shell 23, so that the damaged electrical component 22 can be repaired. At the same time, after the repair is completed, the second maintenance cover 232 can be reconnected to the protective shell 23 and cover the second maintenance hole to ensure the reliability of the protective shell 23 in protecting the electrical component 22.

[0044] For example, the second maintenance cover 232 can be connected to the protective shell 23 by a threaded part, or it can be directly snapped onto the protective shell 23.

[0045] In some embodiments, the battery pack further includes a plurality of circuit boards 21 electrically connected to each other, and each circuit board 21 is provided with an electrical component 22.

[0046] At this time, the easily damaged electrical components 22 can be concentrated on one or more circuit boards 21 to keep them away from the less easily damaged electrical components 22. This avoids accidentally touching and damaging normal electrical components 22 when repairing the easily damaged electrical components 22, and also leaves more space for the easily damaged electrical components 22 to repair, thereby further improving the repair efficiency of the electrical components 22.

[0047] For example, such as Figure 2 As shown, multiple circuit boards 21 are disposed on the same side of the battery module 7 and are arranged sequentially along the width or length direction of the battery module 7.

[0048] In some embodiments, at least one circuit board 21 and its electrical components 22 are accessible through a first service hole 111 for maintenance.

[0049] That is, after removing the first maintenance cover 3, the circuit board 21 corresponding to the first maintenance hole 111 can be taken out of the battery compartment 1 through the first maintenance hole 111, thereby effectively improving the maintenance efficiency of the electrical components 22 on the circuit board 21. Alternatively, the circuit board 21 and the electrical components 22 on it can be replaced as a whole to further improve the maintenance efficiency of the control module 2.

[0050] For example, the size of the first maintenance hole 111 is larger than the size of the circuit board 21. After the circuit board 21 is disconnected from the other circuit boards 21, it can be moved out of the battery compartment 1 through the first maintenance hole 111.

[0051] In some embodiments, any circuit board 21 is soldered or plugged into at least one other circuit board 21.

[0052] This ensures the communication connection of all electrical components 22 in the entire control module 2, and whether it is soldering or plugging, it is easy to disconnect the circuit board 21 that needs to be removed from the battery compartment 1 from the other circuit boards 21, which facilitates the maintenance and replacement of electrical components 22 on the circuit board 21.

[0053] For example, such as Figure 4 As shown, each circuit board 21 is equipped with a connector, and any circuit board 21 can be connected to the connector on the adjacent circuit board 21 through the connector to achieve communication between them.

[0054] In some embodiments, there are multiple first maintenance holes 111 and first maintenance covers 3, and they correspond one-to-one with each other.

[0055] Therefore, each first maintenance hole 111 can correspond to a smaller number of electrical components 22 requiring repair, and the area of ​​the first maintenance hole 111 can be designed to be smaller, thus minimizing the impact of machining the first maintenance hole 111 on the strength of the battery compartment 1. Simultaneously, the multiple electrical components 22 in the control module 2 are also distributed, effectively preventing accidental damage to other intact electrical components 22 when repairing damaged ones.

[0056] For example, such as Figure 1 As shown, there are four first maintenance holes 111, which are arranged at intervals along the width or length of the battery compartment 1. At this time, the control module 2 includes four circuit boards 21 and four protective shells 23 covering the circuit boards 21 and the electrical components 22 thereon.

[0057] The vehicle according to an embodiment of the present invention includes a battery pack as described in any of the above embodiments.

[0058] The technical advantages of the vehicle according to this utility model embodiment are the same as the technical advantages of the battery pack in the above embodiment, and will not be repeated here.

[0059] 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.

[0060] 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.

[0061] 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.

[0062] 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.

[0063] 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.

[0064] 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 battery pack, characterized in that, include: Battery compartment (1), wherein a first maintenance hole (111) is provided on the wall of the battery compartment (1); A control module (2) is installed in the battery compartment (1). The control module (2) includes a plurality of electrical components (22), wherein at least one of the electrical components (22) can be accessed for maintenance through the first maintenance hole (111). A first maintenance cover (3) is detachably connected to the battery compartment (1) to cover the first maintenance hole (111).

2. The battery pack according to claim 1, characterized in that, The battery pack also includes a sealing ring (4), which is sandwiched between the first maintenance cover (3) and the battery compartment (1) and surrounds the first maintenance hole (111).

3. The battery pack according to claim 2, characterized in that, The first maintenance cover (3) is connected to the battery compartment (1) by fasteners (5).

4. The battery pack according to claim 2, characterized in that, The outer surface of the battery compartment (1) is provided with a countersunk hole (112) that communicates with the first maintenance hole (111). The area of ​​the countersunk hole (112) is larger than the area of ​​the first maintenance hole (111), and the first maintenance cover (3) is disposed in the countersunk hole (112).

5. The battery pack according to claim 1, characterized in that, The control module (2) further includes a protective shell (23), and the electrical component (22) is disposed inside the protective shell (23). The protective shell (23) includes a side plate located between the electrical component (22) and the first maintenance hole (111). The side plate is provided with thinning grooves (231). There are multiple thinning grooves (231) arranged circumferentially along the first maintenance hole (111), or the thinning grooves (231) extend circumferentially along the first maintenance hole (111) and are connected end to end. On the projection plane perpendicular to the axial direction of the first maintenance hole (111), the projection of the area of ​​the side plate surrounded by the thinning grooves (231) is located within the projection of the first maintenance hole (111).

6. The battery pack according to claim 1, characterized in that, The control module (2) further includes a protective shell (23) and a second maintenance cover (232). The electrical component (22) is disposed inside the protective shell (23). The protective shell (23) is provided with a second maintenance hole. The second maintenance hole connects the first maintenance hole (111) and the inner cavity of the protective shell (23). The second maintenance cover (232) is detachably connected to the protective shell (23) and covers the second maintenance hole.

7. The battery pack according to any one of claims 1-6, characterized in that, The battery pack also includes multiple circuit boards (21), which are electrically connected, and each circuit board (21) is provided with the electrical component (22).

8. The battery pack according to claim 7, characterized in that, At least one of the circuit boards (21) and its electrical components (22) can be accessed and repaired through the first maintenance hole (111).

9. The battery pack according to claim 7, characterized in that, Any of the circuit boards (21) is soldered or plugged into at least one of the other circuit boards (21).

10. The battery pack according to claim 1, characterized in that, There are multiple first maintenance holes (111) and first maintenance covers (3), and they correspond one-to-one with each other.

11. A vehicle, characterized in that, Includes the battery pack according to any one of claims 1-10.

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