Battery pack and vehicle

Abstract

The utility model discloses a battery pack and a vehicle, the battery pack comprises a frame assembly, a battery cell and a cover plate, an inner cavity is formed in the frame assembly, the battery cell is arranged in the inner cavity, and the cover plate is arranged at the top of the frame assembly to seal the inner cavity; wherein the frame assembly is a non-metal composite material frame assembly. The frame assembly is made of the non-metal composite material, so that the frame assembly has the characteristics of light weight, high impact resistance and corrosion resistance, high production automation degree, high production efficiency and the like, the inner cavity is formed in the frame assembly, the battery cell is conveniently arranged in the inner cavity, and the cover plate is arranged at the top of the frame assembly, so that the battery cell is prevented from being damaged. Therefore, the air tightness of the battery pack can be improved.

Description

Technical Field

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

[0002] At present, power batteries account for a large proportion of the cost and weight of new energy electric vehicles. However, power batteries have the characteristics of heavy weight, weak impact resistance and corrosion resistance, poor airtightness, and low degree of production automation and production efficiency, which are not conducive to the use of power batteries and affect the performance of the vehicle. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, one objective of the present invention is to provide a battery pack that is lightweight, has strong impact and corrosion resistance, good airtightness, and features a high degree of production automation and efficiency, thereby improving the performance of the battery pack and the vehicle.

[0004] The utility model further provides a vehicle.

[0005] According to the battery pack of the present invention, it includes: a frame assembly, a battery cell and a cover plate, the frame assembly forms an inner cavity, the battery cell is arranged in the inner cavity, and the cover plate is arranged on the top of the frame assembly to seal the inner cavity; wherein, the frame assembly is a non-metallic composite material frame assembly.

[0006] According to the battery pack of the present invention, by setting the frame assembly to a non-metallic composite material, the frame assembly can be made light in weight, has strong impact resistance and corrosion resistance, and has a high degree of production automation and production efficiency. In addition, an inner cavity is formed in the frame assembly, which facilitates the arrangement of the battery cells in the inner cavity. A cover plate is provided on the top of the frame assembly to seal the inner cavity, thereby improving the airtightness of the battery pack.

[0007] In some examples of the present invention, the frame assembly includes: a base plate and a frame, the frame is connected to the outer peripheral edge of the base plate and extends upward relative to the surface of the base plate, the inner cavity is formed between the base plate and the frame, the base plate is a non-metallic composite material base plate, and the frame is a non-metallic composite material side beam.

[0008] In some examples of the present invention, the frame assembly further includes: an inner beam, the inner beam is connected to the bottom plate, the two ends of the inner beam are respectively connected to the opposite two sides of the frame, and the inner beam is a non-metallic composite material inner beam.

[0009] In some examples of the present invention, the bottom plate and the frame are integrally injection molded.

[0010] In some examples of the present invention, a plurality of first weight-reducing holes are provided on the outer peripheral surface of the frame, and the plurality of first weight-reducing holes are arranged at intervals on the outer peripheral surface of the frame; and / or a plurality of second weight-reducing holes are provided on the lower surface of the base plate, and the plurality of second weight-reducing holes are arranged at intervals on the lower surface of the base plate.

[0011] In some examples of the present invention, the battery pack further includes: a cooling plate and an adhesive, wherein the cooling plate is arranged in the inner cavity and between the battery cell and the bottom plate, and the adhesive is arranged on the side of the cooling plate facing the bottom plate to connect the cooling plate and the bottom plate, and a cooling channel is defined between the cooling plate and the bottom plate.

[0012] In some examples of the present invention, the cooling plate includes: a plate body and multiple dividing ribs, the battery core is arranged on the upper surface of the plate body, and the multiple dividing ribs are arranged on the lower surface of the plate body, and multiple cooling channels are defined between the plate body, the multiple dividing ribs and the bottom plate.

[0013] In some examples of the present invention, there are multiple cooling plates; the battery pack also includes: a water inlet pipe and a water outlet pipe, the water inlet pipe is connected to the water inlets of the multiple cooling plates, the water inlet pipe is provided with a water inlet joint, the water outlet pipe is connected to the water outlets of the multiple cooling plates, the water outlet pipe is provided with a water outlet joint, and the water inlet joint and the water outlet joint are installed on the frame.

[0014] In some examples of the present invention, the water inlet and the water outlet are located on the first side of the cooling plate, and the multiple cooling channels of the cooling plate include an inlet channel connected to the water inlet and a liquid outlet channel connected to the water outlet; the battery pack also includes: a connecting pipe, the connecting pipe is located on the second side of the cooling plate, the connecting pipe is connected between the inlet channel and the outlet channel; and / or the frame assembly is a fiberglass resin frame assembly, and the cooling plate is an aluminum alloy plate.

[0015] The vehicle according to the present invention includes: the battery pack described above.

[0016] Compared with the existing technology, the present invention adopts the method of setting the frame assembly as a non-metallic composite material, which makes the frame assembly light in weight, strong in impact resistance and corrosion resistance, and high in production automation and production efficiency. In addition, an inner cavity is formed in the frame assembly, which facilitates the arrangement of the battery cell in the inner cavity. A cover plate is provided on the top of the frame assembly to seal the inner cavity, thereby improving the airtightness of the battery pack.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0019] Figure 1 This is a schematic structural diagram of a battery pack according to an embodiment of the present invention from a first angle;

[0020] Figure 2 This is a schematic structural diagram of a battery pack according to a second angle of view of an embodiment of the present utility model;

[0021] Figure 3 This is a schematic diagram of a partial structure of a battery pack according to an embodiment of the present invention from a first angle;

[0022] Figure 4 This is a schematic diagram of a partial structure of a battery pack according to an embodiment of the present invention from a second angle;

[0023] Figure 5 3 is a partial structural diagram of a battery pack according to an embodiment of the present invention from a third angle;

[0024] Figure 6 It is a partial exploded view of a battery pack according to an embodiment of the present utility model.

[0025] Reference numerals:

[0026] 100. Battery pack;

[0027] 10. Frame assembly; 11. Inner cavity; 12. Bottom plate; 13. Frame; 14. Inner beam; 15. First weight-reducing hole; 16. Second weight-reducing hole; 20. Battery cell; 30. Cover plate; 40. Cooling plate; 41. Plate body; 42. Separating rib; 50. Adhesive; 60. Water inlet pipe; 61. Water inlet connector; 62. Water inlet; 70. Water outlet pipe; 71. Water outlet connector; 72. Water outlet; 80. Connecting pipe. DETAILED DESCRIPTION

[0028] The embodiments of the present invention are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. The embodiments of the present invention are described in detail below.

[0029] Reference below Figures 1-6 A battery pack 100 according to an embodiment of the present invention is described. The battery pack 100 is applied to a vehicle.

[0030] like Figure 1-Figure 3As shown, the battery pack 100 according to the present invention includes: a frame assembly 10, a battery cell 20 and a cover plate 30, the frame assembly 10 forms an inner cavity 11, the battery cell 20 is arranged in the inner cavity 11, and the cover plate 30 is arranged on the top of the frame assembly 10 to cover the inner cavity 11; wherein, the frame assembly 10 is a non-metallic composite material frame assembly 10.

[0031] It can be understood that the frame assembly 10, the battery cell 20 and the cover plate 30 constitute the main structure of the battery pack 100. An inner cavity 11 is formed in the frame assembly 10, and the frame assembly 10 forms a semi-enclosed structure. The inner cavity 11 can provide installation space for the battery cell 20, so that the battery cell 20 is conveniently set in the frame assembly 10. The frame assembly 10 can protect the battery cell 20, thereby extending the service life of the battery cell 20 and ensuring the performance of the battery cell 20. The cover plate 30 is located on the top of the frame assembly 10. This setting allows the cover plate 30 to cover the frame assembly 10, thereby closing the inner cavity 11, and then encapsulating the battery cell 20, and also improving the airtightness of the battery pack 100.

[0032] The frame assembly 10 is made of a non-metallic composite material and is integrally injection molded. This allows for lightweight, strong impact and corrosion resistance, and high production automation and efficiency. This facilitates the industrial development of the battery pack 100 and improves the performance of the battery pack 100, thereby enhancing the vehicle's range and safety. For example, the frame assembly 10 is made of fiberglass resin, which not only ensures structural strength but also achieves a lightweight design.

[0033] Therefore, by setting the frame assembly 10 to a non-metallic composite material, the frame assembly 10 can have the characteristics of light weight, strong impact resistance and corrosion resistance, as well as high degree of production automation and production efficiency. In addition, an inner cavity 11 is formed in the frame assembly 10, so that the battery cell 20 is conveniently set in the inner cavity 11. A cover plate 30 is set on the top of the frame assembly 10, so that the inner cavity 11 can be sealed, thereby improving the airtightness of the battery pack 100.

[0034] Among them, such as Figure 1-Figure 4 As shown, the frame assembly 10 includes: a base plate 12 and a frame 13, the frame 13 is connected to the outer peripheral edge of the base plate 12 and extends upward relative to the surface of the base plate 12, an inner cavity 11 is formed between the base plate 12 and the frame 13, the base plate 12 is a non-metallic composite material base plate 12, and the frame 13 is a non-metallic composite material side beam.

[0035] It can be understood that the base plate 12 and the frame 13 constitute the main structure of the frame assembly 10, and the frame 13 extends relative to the surface of the base plate 12, so that a semi-enclosed structure can be formed between the frame 13 and the base plate 12, and the frame 13 and the base plate 12 are connected at the outer edges, so that the space between the frame 13 and the base plate 12 can be expanded, and an inner cavity 11 is formed between the frame 13 and the base plate 12, so that the battery cell 20 is conveniently arranged in the base plate 12 and the frame 13, thereby extending the service life of the battery cell 20 and ensuring the performance of the battery cell 20. The base plate 12 and the frame 13 are both non-metallic composite materials, so that the base plate 12 and the frame 13 have the characteristics of light weight, strong impact resistance and corrosion resistance, as well as high degree of production automation and production efficiency, which is beneficial to the industrial development of the battery pack 100, and can also improve the performance of the battery pack 100, thereby improving the vehicle's endurance and safety performance.

[0036] In addition, if Figure 4 As shown, the frame assembly 10 further includes an inner beam 14 , which is connected to the bottom plate 12 , and whose two ends are respectively connected to the opposite sides of the frame 13 . The inner beam 14 is made of a non-metallic composite material.

[0037] That is to say, the inner beam 14 is located on the bottom plate 12, and the two ends of the inner beam 14 are connected to the opposite sides of the frame 13. Not only can the inner beam 14 divide the inner cavity 11 into multiple spaces, thereby facilitating the arrangement of multiple inner cores in the inner cavity 11, but the inner beam 14 can also enhance the overall structural strength of the frame assembly 10, thereby ensuring the structural strength of the battery pack 100. Moreover, the inner beam 14 is a non-metallic composite material, which can make the bottom plate 12 and the frame 13 light in weight, strong in impact resistance and corrosion resistance, as well as high in production automation and production efficiency, thereby facilitating the industrial development of the battery pack 100, and can also enhance the performance of the battery pack 100, thereby enhancing the vehicle's endurance and safety performance.

[0038] In particular, the base plate 12 and the frame 13 are integrally injection molded, which makes the base plate 12 and the frame 13 light in weight, strong in impact resistance and corrosion resistance, and high in production automation and efficiency, thereby facilitating the industrial development of the battery pack 100.

[0039] Alternatively, as Figure 1-Figure 3 As shown, a plurality of first weight-reducing holes 15 are provided on the outer peripheral surface of the frame 13, and the plurality of first weight-reducing holes 15 are arranged at intervals on the outer peripheral surface of the frame 13; a plurality of second weight-reducing holes 16 are provided on the lower surface of the base plate 12, and the plurality of second weight-reducing holes 16 are arranged at intervals on the lower surface of the base plate 12.

[0040] It can be understood that a plurality of first weight-reducing holes 15 are provided on the outer peripheral surface of the frame 13, and a plurality of second weight-reducing holes 16 are provided on the lower surface of the base plate 12, and the plurality of first weight-reducing holes 15 are arranged at intervals, and the plurality of second weight-reducing holes 16 are arranged at intervals, thereby achieving a lightweight design of the frame 13 and the base plate 12, and thereby facilitating the installation and transportation of the battery pack 100.

[0041] In addition, if Figure 5 and Figure 6 As shown, the battery pack 100 also includes: a cooling plate 40 and an adhesive 50. The cooling plate 40 is arranged in the inner cavity 11 and is located between the battery cell 20 and the bottom plate 12. The adhesive 50 is arranged on the side of the cooling plate 40 facing the bottom plate 12 to connect the cooling plate 40 and the bottom plate 12. A cooling channel is defined between the cooling plate 40 and the bottom plate 12.

[0042] That is to say, the cooling plate 40 is located in the inner cavity 11, so that the inner cavity 11 provides an installation space for the cooling plate 40, and the cooling plate 40 is located between the battery cell 20 and the base plate 12, so that the cooling plate 40 can cool the battery cell 20, and the adhesive 50 is located between the cooling plate 40 and the base plate 12, so that the cooling plate 40 can be connected to the base plate 12 through the adhesive 50, and then the cooling plate 40 and the base plate 12 can be connected into a whole, and a cooling channel is defined between the side of the cooling plate 40 facing the base plate 12 and the base plate 12. This arrangement allows the cooling liquid to circulate through the cooling channel, thereby facilitating the cooling liquid to cool the battery cell 20 through the cooling plate 40, thereby ensuring the performance of the battery cell 20.

[0043] Among them, such as Figure 5 As shown, the cooling plate 40 includes: a plate body 41 and a plurality of partition ribs 42, the battery cells 20 are arranged on the upper surface of the plate body 41, and the plurality of partition ribs 42 are arranged on the lower surface of the plate body 41, and a plurality of cooling channels are defined between the plate body 41, the plurality of partition ribs 42 and the base plate 12.

[0044] It can be understood that the plate body 41 and the multiple dividing ribs 42 constitute the main structure of the cooling plate 40, the battery cell 20 is located on the upper surface of the plate body 41, and the multiple dividing ribs 42 are located on the lower surface of the plate body 41, so that the plate body 41 can separate the battery cell 20 and the base plate 12, and multiple cooling channels are defined between the plate body 41, the multiple dividing ribs 42 and the base plate 12. This arrangement facilitates the circulation of cooling liquid through the cooling channels, thereby facilitating the cooling liquid to cool the battery cell 20 through the cooling plate 40, thereby ensuring the performance of the battery cell 20.

[0045] In addition, if Figure 4-Figure 6As shown, there are multiple cooling plates 40; the battery pack 100 also includes: a water inlet pipe 60 and a water outlet pipe 70, the water inlet pipe 60 is connected to the water inlets 62 of the multiple cooling plates 40, the water inlet pipe 60 is provided with a water inlet joint 61, the water outlet pipe 70 is connected to the water outlets 72 of the multiple cooling plates 40, the water outlet pipe 70 is provided with a water outlet joint 71, and the water inlet joint 61 and the water outlet joint 71 are installed on the frame 13.

[0046] That is to say, the inner beam 14 divides the inner cavity 11 into multiple cavities, each cavity corresponds to a cooling plate 40, so that multiple cooling plates 40 can be arranged in the inner cavity 11, thereby improving the heat dissipation efficiency of the battery cell 20, and a water inlet 62 and a water outlet 72 are provided on the cooling plate 40, the water inlet 62 is connected to the water inlet pipe 60, and the water outlet 72 is connected to the water outlet pipe 70, and the water inlet joint 61 and the water outlet joint 71 are arranged on the frame 13, so that the cooling liquid can flow into the water inlet pipe 60 through the water inlet joint 61, and then flow into the water inlet 62 from the water inlet pipe 60. After the cooling liquid circulates in the cooling flow channel, it flows out from the water outlet 72, and then flows out from the water outlet joint 71 after passing through the water outlet pipe 70, thereby realizing the recycling of the cooling liquid, thereby improving the heat dissipation efficiency of the battery cell 20.

[0047] In addition, Figure 3 and Figure 4 As shown, the water inlet 62 and the water outlet 72 are located on the first side of the cooling plate 40, and the multiple cooling channels of the cooling plate 40 include an inlet channel connected to the water inlet 62 and a liquid outlet channel connected to the water outlet 72; the battery pack 100 also includes: a connecting pipe 80, the connecting pipe 80 is located on the second side of the cooling plate 40, and the connecting pipe 80 is connected between the liquid inlet channel and the liquid outlet channel; and / or the frame assembly 10 is a glass fiber resin frame assembly, and the cooling plate 40 is an aluminum alloy plate.

[0048] It can be understood that the water inlet 62 and the water outlet 72 are arranged close to the water inlet joint 61 and the water outlet joint 71, so that the water inlet 62 is connected to the water inlet joint 61 through the water inlet pipe 60, and the water outlet 72 is connected to the water outlet joint 71 through the water outlet pipe 70. The multiple cooling channels are divided into liquid inlet channels and liquid outlet channels, and the liquid inlet channels and the liquid outlet channels are connected by a connecting pipe 80. The connecting pipe 80 is located away from the water inlet joint 61 and the water outlet joint 71, so that the coolant can circulate fully in the cooling channel, thereby ensuring the heat dissipation efficiency of the battery cell 20, and the cooling plate 40 is an extruded aluminum alloy plate, which can not only ensure the structural strength of the cooling plate 40 but also ensure the heat dissipation efficiency of the cooling plate 40.

[0049] A vehicle according to the present invention includes the battery pack 100 of the above embodiment. By configuring the frame assembly 10 to be a non-metallic composite material, the frame assembly 10 is lightweight, has strong impact and corrosion resistance, and exhibits high production automation and efficiency. Furthermore, an inner cavity 11 is formed within the frame assembly 10, facilitating the placement of the battery cells 20 therein. A cover plate 30 is provided on top of the frame assembly 10 to seal the inner cavity 11, thereby enhancing the airtightness of the battery pack 100.

[0050] 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 to 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 device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0051] In the description of the present invention, "first feature" and "second feature" may include one or more of the features. In the description of the present invention, "plurality" means two or more. In the description of the present invention, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may also include the first and second features not being in direct contact but being in contact via another feature between them. In the description of the present invention, the first feature being "above", "above" and "above" the second feature includes the first feature being directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature.

[0052] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "example," "specific example," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0053] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A battery pack, characterized in that: include: A frame assembly (10), wherein the frame assembly (10) is formed with an inner cavity (11); A battery core (20), the battery core (20) being disposed in the inner cavity (11); a cover plate (30), the cover plate (30) being arranged on the top of the frame assembly (10) to cover the inner cavity (11); Wherein, the frame assembly (10) is a non-metal composite material frame assembly (10).

2. The battery pack according to claim 1, wherein: The frame assembly (10) comprises: bottom plate (12); A frame (13) is connected to the outer peripheral edge of the bottom plate (12) and extends upward relative to the surface of the bottom plate (12); the inner cavity (11) is formed between the bottom plate (12) and the frame (13); the bottom plate (12) is a non-metallic composite material bottom plate (12); and the frame (13) is a non-metallic composite material side beam.

3. The battery pack according to claim 2, wherein: The frame assembly (10) further comprises: An inner beam (14), the inner beam (14) is connected to the bottom plate (12), two ends of the inner beam (14) are respectively connected to two opposite sides of the frame (13), and the inner beam (14) is a non-metallic composite material inner beam (14).

4. The battery pack according to claim 2, wherein: The bottom plate (12) and the frame (13) are integrally injection-molded.

5. The battery pack according to claim 2, wherein: The outer peripheral surface of the frame (13) is provided with a plurality of first weight-reducing holes (15), and the plurality of first weight-reducing holes (15) are arranged at intervals on the outer peripheral surface of the frame (13); and / or A plurality of second weight-reducing holes (16) are provided on the lower surface of the bottom plate (12), and the plurality of second weight-reducing holes (16) are arranged at intervals on the lower surface of the bottom plate (12).

6. The battery pack according to claim 2, characterized in that: Also includes: a cooling plate (40), the cooling plate (40) being arranged in the inner cavity (11) and located between the battery core (20) and the bottom plate (12); An adhesive member (50) is provided on a side of the cooling plate (40) facing the base plate (12) to connect the cooling plate (40) and the base plate (12), wherein a cooling channel is defined between the cooling plate (40) and the base plate (12).

7. The battery pack according to claim 6, characterized in that: The cooling plate (40) comprises: A plate body (41), wherein the battery core (20) is arranged on an upper surface of the plate body (41); A plurality of separation ribs (42) are provided on the lower surface of the plate body (41); a plurality of cooling channels are defined between the plate body (41), the plurality of separation ribs (42) and the bottom plate (12).

8. The battery pack according to claim 6, wherein: There are multiple cooling plates (40); The battery pack further includes: a water inlet pipe (60), the water inlet pipe (60) being connected to the water inlets (62) of the plurality of cooling plates (40), the water inlet pipe (60) being provided with a water inlet joint (61); A water outlet pipe (70), the water outlet pipe (70) is connected to the water outlets (72) of the plurality of cooling plates (40), the water outlet pipe (70) is provided with a water outlet joint (71), and the water inlet joint (61) and the water outlet joint (71) are installed on the frame (13).

9. The battery pack according to claim 8, characterized in that: The water inlet (62) and the water outlet (72) are located on a first side of the cooling plate (40), and the plurality of cooling channels of the cooling plate (40) include a liquid inlet channel connected to the water inlet (62) and a liquid outlet channel connected to the water outlet (72); The battery pack further includes: a connecting pipe (80), the connecting pipe (80) being located on the second side of the cooling plate (40), the connecting pipe (80) being connected between the liquid inlet flow channel and the liquid outlet flow channel; and / or The frame assembly is a glass fiber resin frame assembly, and the cooling plate (40) is an aluminum alloy plate.

10. A vehicle, characterized in that: include: The battery pack (100) according to any one of claims 1 to 9.

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