Top cover assembly, battery pack and vehicle

Abstract

The utility model relates to a top cover subassembly, battery pack and vehicle, the top cover subassembly includes top cover and mount, the top cover includes top plate and side plate, the side plate is provided at the lower side of top plate and is arranged around the circumference of top plate, the side plate and top plate enclose to form the battery cell accommodation chamber, the mounting piece is provided with the mounting piece, the mounting piece is provided with the mounting piece, and the mounting piece is provided with the mounting piece. The mounting piece is arranged on one side, far away from the battery cell accommodating cavity, of the top plate, and one side, far away from the top cover, of the mounting piece is connected with a vehicle body. The top cover assembly disclosed by the utility model is compact in structure and beneficial to the integrated design of the battery pack.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, and in particular to a top cover assembly, a battery pack and a vehicle. Background Art

[0002] As the power source of electric vehicles, the power battery system plays a vital role in the design and development of electric vehicles. In order to prevent the battery pack from shaking relative to the vehicle body, it is usually necessary to design mounting points on the battery pack to connect with the vehicle body. In related technologies, the mounting bolts of the battery pack are mostly designed on the transverse and longitudinal beams of the battery case, and an avoidance structure is provided in the battery cell accommodating cavity for the mounting bolts to pass through. However, the transverse and longitudinal beams of the above technical solution and the avoidance structure in the battery cell accommodating cavity occupy a large space in the battery pack, which is not conducive to the integrated design of the battery pack. Utility Model Content

[0003] The utility model aims to solve one of the technical problems in the related art at least to a certain extent.

[0004] To this end, an embodiment of the utility model provides a top cover assembly, which has a compact structure and is conducive to the integrated design of the battery pack.

[0005] An embodiment of the present invention further provides a battery pack.

[0006] An embodiment of the utility model further provides a vehicle.

[0007] The top cover assembly of an embodiment of the utility model includes: a top cover, the top cover includes a top plate and a side plate, the side plate is arranged on the lower side of the top plate and is circumferentially arranged around the top plate, the side plate and the top plate form a battery cell accommodating cavity; a mounting part, the mounting part is arranged on a side of the top plate away from the battery cell accommodating cavity, and the mounting part is connected to the vehicle body on a side away from the top cover.

[0008] According to the top cover assembly of the embodiment of the utility model, the side panels and the top panel enclose a battery cell accommodating cavity, so that the top cover can accommodate at least part of the battery cell, and the mounting parts are arranged at a position of the top panel away from the side of the battery cell accommodating cavity, so that it is not necessary to occupy the space of the battery cell accommodating cavity, and there is no need to set up redundant horizontal and vertical beam structures, thereby making the structure of the top plate assembly compact, which is conducive to the integrated design of the battery pack.

[0009] In some embodiments, there are multiple mounting components, and the multiple mounting components are arranged on the top plate at intervals, and each of the mounting components is provided with at least one mounting position.

[0010] In some embodiments, the mounting member includes a base and a threaded member, the base is mounted on the upper side of the top plate and defines a limiting cavity with the top plate, one end of the threaded member is fixed in the limiting cavity, and the other end of the threaded member extends upward.

[0011] In some embodiments, the mounting member includes a connecting beam, which extends along a preset direction, the preset direction is orthogonal to the thickness direction of the top plate, and a plurality of mounting positions are provided on the connecting beam, and the plurality of mounting positions are arranged at intervals along the extension direction of the connecting beam.

[0012] In some embodiments, the mounting position is a connection hole, and the connection hole opens in a direction away from the top plate;

[0013] And / or, a cavity is provided in the connecting beam, and the cavity penetrates the connecting beam along the extension direction of the connecting beam.

[0014] In some embodiments, the top cover assembly further includes a cooling plate, and the cooling plate is disposed on at least one of a top wall of the battery cell accommodating cavity and a side wall of the battery cell accommodating cavity.

[0015] In some embodiments, the cooling plate is disposed on the top wall of the battery cell accommodating cavity and connected to the top plate; and / or, a plurality of first cooling channels are disposed in the cooling plate, and the plurality of first cooling channels are arranged at intervals in the cooling plate.

[0016] A battery pack according to another embodiment of the present invention comprises: a top cover assembly, which is the top cover assembly described in any one of the embodiments of the present invention; a battery cell and a bottom plate, which is sealed at the bottom of the battery cell accommodating cavity, and the battery cell is arranged in the battery cell accommodating cavity.

[0017] According to the battery pack of the embodiment of the utility model, since the side panels and the top panel enclose a battery cell accommodating cavity, the top cover can accommodate at least part of the battery cells, and the mounting parts are arranged at a position of the top panel away from the battery cell accommodating cavity, so that it is not necessary to occupy the space of the battery cell accommodating cavity, and there is no need to set up redundant horizontal and vertical beam structures, thereby making the structure of the top panel assembly compact, which is conducive to the integrated design of the battery pack.

[0018] In some embodiments, a plurality of second cooling channels are provided in the bottom plate, and the plurality of second cooling channels are arranged at intervals in the bottom plate; and / or, the battery pack further includes a support beam, which is provided in the battery cell accommodating cavity, the upper end of the support beam is connected to the top plate, and the lower end of the support beam is connected to the bottom plate.

[0019] A vehicle according to another embodiment of the utility model comprises a top cover assembly or a battery pack according to any one of the embodiments of the utility model.

[0020] According to the vehicle of the embodiment of the utility model, since the side panels and the top panel enclose a battery cell accommodating cavity, the top cover can accommodate at least part of the battery cell, and the mounting parts are arranged at a position of the top panel away from the side of the battery cell accommodating cavity, so that it is not necessary to occupy the space of the battery cell accommodating cavity, and there is no need to set up redundant horizontal and vertical beam structures, thereby making the structure of the top panel assembly compact, which is conducive to the integrated design of the battery pack. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of a top cover assembly according to an embodiment of the utility model.

[0022] Figure 2 It is an exploded view of a top cover assembly according to an embodiment of the utility model.

[0023] Figure 3 It is a cross-sectional view of a battery pack according to an embodiment of the present utility model.

[0024] Figure 4 It is an exploded view of a battery pack according to an embodiment of the present utility model.

[0025] Figure 5 It is a schematic diagram of a top cover assembly according to another embodiment of the utility model.

[0026] Figure 6 It is an exploded view of a top cover assembly according to another embodiment of the utility model.

[0027] Figure 7 It is a cross-sectional view of a battery pack according to another embodiment of the present invention.

[0028] Figure 8 It is an exploded view of a battery pack according to another embodiment of the present invention.

[0029] Fig. 9 It is a bottom view of the top cover of an embodiment of the utility model.

[0030] Reference numerals:

[0031] 1. Top cover; 11. Top plate; 111. Gluing area; 112. Welding area; 12. Side plate; 13. Cell accommodating cavity; 14. Flange; 141. Matching groove;

[0032] 2. Mounting part; 21. Bottom bracket; 22. Threaded part; 23. Limiting cavity; 24. Connecting beam; 241. Connecting hole; 242. Cavity;

[0033] 3. Cooling plate; 31. First cooling channel;

[0034] 4. Bottom plate; 41. Second cooling channel;

[0035] 5. Support beam;

[0036] 6. Battery cell. DETAILED DESCRIPTION

[0037] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but cannot be understood as limiting the present invention.

[0038] Please refer to the following Figures 1 to 9 A top cover assembly, a battery pack and a vehicle according to embodiments of the present invention are described.

[0039] like Figures 1 to 9 As shown, the top cover assembly according to the embodiment of the utility model includes: a top cover 1 and a mounting member 2, the top cover 1 includes a top plate 11 and a side plate 12, the side plate 12 is arranged on the lower side of the top plate 11 and is arranged around the circumference of the top plate 11, the side plate 12 and the top plate 11 form a battery cell accommodating cavity 13, and the mounting member 2 is arranged along the thickness direction of the top plate 11 (such as Figure 3 The mounting member 2 is disposed on a side of the top plate 11 away from the battery cell accommodating chamber 13 (in the up and down directions), and the side of the mounting member 2 away from the top cover 1 is connected to the vehicle body.

[0040] It can be understood that the top plate 11 is away from the side of the battery cell accommodating cavity 13, that is, Figure 3 The upper side of the middle top plate 11.

[0041] According to the top cover assembly of the embodiment of the utility model, since the side panels 12 and the top panel 11 enclose a battery cell accommodating cavity 13, the top cover 1 can accommodate at least part of the battery cell 6, and the mounting component 2 is arranged at a position on the top panel 11 away from the battery cell accommodating cavity 13, and does not need to occupy the space of the battery cell accommodating cavity 13, and there is no need to set up redundant horizontal and vertical beam structures, thereby making the structure of the top panel 11 assembly compact, which is conducive to the integrated design of the battery pack.

[0042] It can be understood that the top cover assembly of the embodiment of the utility model has load-bearing capacity, and there is no need to add horizontal and vertical beams for installing the mounting part 2 in the battery box, and the mounting part 2 of the top cover assembly of the embodiment of the utility model does not occupy the space of the battery cell accommodating cavity 13, so that the overall structure of the battery pack is compact, which is conducive to improving the degree of integration of the battery pack.

[0043] In some embodiments, Figure 1 and Figure 5 As shown, the mounting part 2 can be one or more. In an embodiment of the utility model, there are multiple mounting parts 2, and multiple mounting parts 2 are arranged on the top plate 11 at intervals to improve the load-bearing capacity and uniformity of the load-bearing force of the top cover assembly.

[0044] Each mounting member 2 is provided with at least one mounting position, and it can be understood that the mounting position is the connection point between the mounting member 2 and the vehicle body. There can be one or more mounting positions on each mounting member 2.

[0045] In one example, if Figures 1 to 4 As shown, the mounting member 2 includes a base 21 and a threaded member 22. The base 21 is installed on the upper side of the top plate 11 and defines a limiting cavity 23 with the top plate 11. One end of the threaded member 22 is fixed in the limiting cavity 23, and the other end of the threaded member 22 extends upward. It can be understood that the threaded member 22 constitutes a mounting position. The threaded member 22 can be a bolt, and the end cap of the bolt is installed in the limiting cavity 23 to prevent the threaded member 22 from being separated from the base 21. The base 21 and the top plate 11 can be connected by welding, and the weld seal is arranged circumferentially around the base 21, thereby facilitating the convenience and reliability of the installation of the mounting member 2.

[0046] Optionally, the mounting parts 2 can be arranged at intervals along the circumference of the top plate 11, or can be arranged in an array on the top plate 11. In a specific example, there are four mounting parts 2, and the four mounting parts 2 are respectively installed at the four corners of the top plate 11, thereby ensuring uniform force when the battery pack is mounted.

[0047] In another example, if Figures 5 to 8 As shown, the mounting member 2 includes a connecting beam 24, and the connecting beam 24 extends along a preset direction, which is orthogonal to the thickness direction of the top plate 11. It can be understood that the preset direction can be Figure 5 The X direction in Figure 5 In the Y direction, for example, the preset direction may have a certain angle with the X direction or the Y direction. In other words, the connecting beam 24 may be arranged on the upper end surface of the top plate 11 according to the specific structure of the battery pack. The connecting beam 24 is provided with a plurality of mounting positions, and the plurality of mounting positions are arranged at intervals along the extension direction of the connecting beam 24. The top cover assembly of the embodiment of the utility model is beneficial to improving the firmness of the installation of the battery pack and the vehicle body by setting the mounting part 2 as the above-mentioned scheme, and the top cover assembly has fewer parts during assembly, which is beneficial to improving production efficiency.

[0048] Alternatively, if Figures 5 to 8 As shown, the mounting position is a threaded connection hole 241, and the connection hole 241 opens in a direction away from the top plate 11. It can be understood that when the battery pack is connected to the vehicle body, bolts can be inserted into the vehicle body and the connection hole 241 to fix the battery pack. In order to reduce the weight of the battery pack, a cavity 242 can be set in the connecting beam 24, and the cavity 242 penetrates the connecting beam 24 along the extension direction of the connecting beam.

[0049] Specifically, Figures 5 to 8As shown, there are two connecting beams 24, which are arranged in parallel and at intervals on the top plate 11, thereby ensuring uniform force when the battery pack is mounted.

[0050] In some embodiments, Figure 2 and Figure 6 As shown, the top cover assembly also includes a cooling plate 3, and the cooling plate 3 is arranged on at least one of the top wall of the battery cell accommodating cavity 13 and the side wall of the battery cell accommodating cavity 13. It can be understood that the cooling plate 3 is used to reduce the temperature of the battery cell 6 when it is working. For example, the cooling plate 3 can be arranged alone on the top wall of the battery cell accommodating cavity 13, that is, the cooling plate 3 is attached to the inner wall of the top plate 11. Alternatively, the cooling plate 3 can be arranged alone on the side wall of the battery cell accommodating cavity 13, that is, the cooling plate 3 is attached to the side plate 12. Of course, the cooling plate 3 can also be attached to the top plate 11 and the side plate 12 at the same time.

[0051] In one example, the cooling plate 3 is disposed on the top wall of the battery cell accommodating cavity 13 and connected to the top plate 11. In order to facilitate the installation of the cooling plate 3, an adhesive layer can be provided between the cooling plate 3 and the top wall of the battery cell accommodating cavity 13. That is, the cooling plate 3 and the top plate 11 are fixed by glue. Alternatively, the cooling plate 3 and the top plate 11 can also be connected by welding.

[0052] Specifically, Fig. 9 As shown, a glue coating area 111 and a welding area 112 are provided on the top plate 11, wherein the glue coating area 111 is provided in the middle of the top plate 11, and the welding area 112 is provided at the edge of the top plate 11. The middle of the cooling plate 3 is bonded to the glue coating area 111, and the edge of the cooling plate 3 is welded to the welding area 112, thereby ensuring the firmness of the installation of the cooling plate 3 and facilitating the improvement of the assembly efficiency of the cooling plate 3.

[0053] Alternatively, if Figure 2 and Figure 6 As shown, a plurality of first cooling channels 31 are provided in the cooling plate 3, and the plurality of first cooling channels 31 are arranged at intervals in the cooling plate 3. It is understandable that a coolant may be introduced into the first cooling channel 31 to accelerate the cooling of the battery cell 6 and improve the cooling efficiency of the battery cell 6.

[0054] like Figure 3 , Figure 4 , Figure 7 and Figure 8 As shown, a battery pack of another embodiment of the present invention includes a top cover assembly, a battery cell 6 and a bottom plate 4. The top cover assembly is the top cover assembly of the present invention, the bottom plate 4 is sealed on the bottom of the battery cell accommodating cavity 13, and the battery cell 6 is arranged in the battery cell accommodating cavity 13.

[0055] According to the battery pack of the embodiment of the utility model, since the side panels 12 and the top panel 11 enclose a battery cell accommodating cavity 13, the top cover 1 can accommodate at least part of the battery cell 6, and the mounting member 2 is arranged at a position of the top panel 11 away from the side of the battery cell accommodating cavity 13, and does not need to occupy the space of the battery cell accommodating cavity 13, and does not need to set up redundant horizontal and vertical beam structures, thereby making the structure of the top panel 11 assembly compact, which is conducive to the integrated design of the battery pack.

[0056] Alternatively, if Figure 3 , Figure 4 , Figure 7 and Figure 8 As shown, a plurality of second cooling channels 41 are provided in the bottom plate 4, and the plurality of second cooling channels 41 are arranged at intervals in the bottom plate 4. It is understandable that the second cooling channels 41 may be provided with coolant, or may only be a compartment structure (i.e., no coolant is provided in the second cooling channels 41).

[0057] Alternatively, if Figure 3 and Figure 7 As shown, the battery pack further includes a support beam 5, which is disposed in the battery cell accommodating cavity 13, the upper end of the support beam 5 is connected to the top plate 11, and the lower end of the support beam 5 is connected to the bottom plate 4. For example, the support beam 5 is disposed in the middle of the battery cell accommodating cavity 13 to improve the stability of the battery pack structure so that the battery pack is not easily deformed when subjected to external force.

[0058] In one example, if Figure 3 and Figure 7 As shown, a flange 14 is provided at the lower edge of the side plate 12, and the flange 14 is arranged circumferentially around the side plate 12. A matching groove 141 is provided at the lower side of the flange 14, and the bottom plate 4 can be embedded in the matching groove 141, so that the installation structure of the battery pack is more compact.

[0059] A vehicle of another embodiment of the present invention comprises any one of the roof assembly or battery pack of the present invention. The technical advantages of the vehicle of the present invention embodiment are the same as those of the roof assembly or battery pack of the above-mentioned embodiment, which will not be described in detail here.

[0060] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0061] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0062] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0063] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0064] In the present utility model, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0065] Although the above embodiments have been shown and described, it is to be understood that the above embodiments are illustrative and cannot be construed as limitations on the present invention. Changes, modifications, substitutions and variations of the above embodiments by those of ordinary skill in the art are all within the scope of protection of the present invention.

Claims

1. A top cover assembly, characterized in that: include: A top cover (1), the top cover (1) comprising a top plate (11) and a side plate (12), the side plate (12) being arranged on the lower side of the top plate (11) and surrounding the circumference of the top plate (11), the side plate (12) and the top plate (11) forming a battery cell accommodating cavity (13); A mounting member (2), the mounting member (2) being arranged on a side of the top plate (11) away from the battery cell accommodating cavity (13), and the side of the mounting member (2) away from the top cover (1) being connected to the vehicle body.

2. The top cover assembly according to claim 1, characterized in that: There are a plurality of mounting parts (2), and the plurality of mounting parts (2) are arranged at intervals on the top plate (11), and each mounting part (2) is provided with at least one mounting position.

3. The top cover assembly according to claim 2, characterized in that: The mounting member (2) comprises a base (21) and a threaded member (22); the base (21) is mounted on the upper side of the top plate (11) and defines a limiting cavity (23) with the top plate (11); one end of the threaded member (22) is fixed in the limiting cavity (23), and the other end of the threaded member (22) extends upward.

4. The top cover assembly according to claim 1, characterized in that: The mounting member (2) comprises a connecting beam (24), the connecting beam (24) extending along a preset direction, the preset direction being orthogonal to the thickness direction of the top plate, a plurality of mounting positions being provided on the connecting beam (24), the plurality of mounting positions being arranged at intervals along the extension direction of the connecting beam (24).

5. The top cover assembly according to claim 4, characterized in that: The mounting position is a connection hole (241), and the connection hole (241) opens in a direction away from the top plate (11); And / or, a cavity (242) is provided in the connection beam (24), and the cavity (242) penetrates the connection beam (24) along the extension direction of the connection beam.

6. The top cover assembly according to any one of claims 1 to 5, characterized in that: It also comprises a cooling plate (3), wherein the cooling plate (3) is arranged on at least one of the top wall of the battery cell accommodating cavity (13) and the side wall of the battery cell accommodating cavity (13).

7. The top cover assembly according to claim 6, characterized in that: The cooling plate (3) is arranged on the top wall of the battery cell accommodating cavity (13) and is connected to the top plate (11); And / or, a plurality of first cooling channels (31) are provided in the cooling plate (3), and the plurality of first cooling channels (31) are arranged at intervals in the cooling plate (3).

8. A battery pack, characterized in that: include: A top cover assembly, wherein the top cover assembly is the top cover assembly according to any one of claims 1 to 7; A battery cell (6) and a bottom plate (4), wherein the bottom plate (4) is sealed on the bottom of the battery cell accommodating cavity (13), and the battery cell (6) is arranged in the battery cell accommodating cavity (13).

9. The battery pack according to claim 8, characterized in that: A plurality of second cooling channels (41) are provided in the bottom plate (4), and the plurality of second cooling channels (41) are arranged at intervals in the bottom plate (4); And / or, the battery pack further comprises a support beam (5), wherein the support beam (5) is arranged in the battery cell accommodating cavity (13), the upper end of the support beam (5) is connected to the top plate (11), and the lower end of the support beam (5) is connected to the bottom plate (4).

10. A vehicle, characterized in that: Comprising the top cover assembly according to any one of claims 1 to 7, or the battery pack according to claim 8 or 9.

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