Battery pack and vehicle with same

Abstract

The utility model provides a battery pack and a vehicle with the battery pack, the battery pack comprises a box body, the box body is provided with a plurality of edge beams, and the box body is enclosed by the plurality of edge beams; a liquid cooling pipeline used for cooling the battery pack is arranged on the liquid cooling plate, connecting plates are arranged on the two sides, in the left-right direction of the vehicle, of the liquid cooling plate, and the connecting plates are fixedly connected with the edge beams. According to the battery pack disclosed by the utility model, the connecting plate is arranged on the supporting plate and is connected with the boundary beams on the left and right sides, so that the anti-collision performance of the left and right sides of the box body can be improved, the protection effect of the box body on the module assembly can be further improved, the use safety of the battery pack is improved, and meanwhile, the connecting efficiency of the liquid cooling plate and the box body can be improved; and the assembling time of the battery pack is saved.

Description

Technical Field

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

[0002] In order to reduce the weight of the battery pack, the battery pack in the existing solution usually adopts a lightweight box, and the lightweighting of the box is usually achieved by lowering the height of the box side beams, thereby achieving a lightweight battery pack. However, when the height of the side beams is reduced, the side strength of the box will be reduced, thereby reducing the side impact resistance of the box, which is not conducive to the safe use of the battery pack. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a battery pack, which can improve the anti-collision performance of the box.

[0004] The utility model also provides a vehicle with the battery pack.

[0005] According to the battery pack of the embodiment of the utility model, it includes: a box body, the box body is provided with a plurality of side beams, and the plurality of side beams surround the box body; a liquid cooling plate, the liquid cooling plate is provided with a liquid cooling pipe for cooling the battery pack, and the liquid cooling plate is provided with connecting plates on both sides in the left and right directions of the vehicle, and the connecting plates are fixedly connected to the side beams.

[0006] According to the battery pack of the utility model, a connecting plate is arranged on the supporting plate, and the connecting plate is connected to the side beams on the left and right sides, which can improve the anti-collision performance of the left and right sides of the box body, thereby improving the protection effect of the box body on the module assembly, improving the safety of the battery pack, and at the same time, can improve the connection efficiency between the liquid cooling plate and the box body, saving the assembly time of the battery pack.

[0007] According to some embodiments of the present invention, the liquid cooling plate is arranged on the lower side of the box body, and the connecting plate is provided at the bottom of the side beam.

[0008] According to some embodiments of the present invention, the connecting plate is adhesively connected to the side beam.

[0009] According to some embodiments of the present invention, a plurality of positioning grooves are provided on the connecting plate, and the plurality of positioning grooves are arranged at intervals along the extension direction of the connecting plate.

[0010] According to some optional embodiments of the present invention, the positioning groove extends along the edge of the connecting plate toward the liquid cooling plate, and the positioning groove penetrates the connecting plate along the thickness direction of the connecting plate.

[0011] According to some embodiments of the present invention, the invention comprises: a reinforcing plate connected to a surface of one side of the connecting plate away from the box body.

[0012] According to some optional embodiments of the present invention, the reinforcing plate is adhesively connected to the connecting plate.

[0013] According to some embodiments of the present utility model, the extension length of the reinforcement plate in the front-rear direction of the vehicle is 700mm-1200mm, and the reinforcement plate is a horizontal plate.

[0014] According to some embodiments of the utility model, the reinforcing plate includes a first plate and a second plate, the first plate is connected to the second plate, the first plate is arranged on the lower side of the connecting plate and connected to the lower surface of the connecting plate, the second plate is arranged on the lower side of the liquid cooling plate and connected to the lower surface of the liquid cooling plate, and / or the reinforcing plate includes a plurality of reinforcing ribs, the plurality of reinforcing ribs are arranged at intervals along the extension direction of the reinforcing plate, and the reinforcing ribs protrude upward.

[0015] A vehicle according to an embodiment of the second aspect of the utility model comprises a battery pack according to the first aspect of the utility model.

[0016] According to the vehicle of the utility model, by setting the battery pack of the first embodiment mentioned above, a connecting plate is set on the support plate, and the connecting plate is connected to the side beams on the left and right sides, so as to improve the anti-collision performance of the left and right sides of the box body, thereby improving the protection effect of the box body on the module assembly and improving the safety of the battery pack. At the same time, it can improve the connection efficiency between the liquid cooling plate and the box body, saving the assembly time of the battery pack.

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

[0018] Figure 1 is a schematic diagram of a battery pack according to an embodiment of the first aspect of the utility model;

[0019] Figure 2 is along Figure 1 Sectional view along line AA;

[0020] Figure 3 yes Figure 1 An exploded view of the battery pack shown in;

[0021] Figure 4 yes Figure 3 An exploded view of a portion of the battery pack structure shown in FIG.

[0022] Figure 5 yes Figure 4Schematic diagram of the liquid cooling plate shown in;

[0023] Figure 6 yes Figure 4 A schematic diagram of an embodiment of a reinforcement plate shown in ;

[0024] Figure 7 yes Figure 4 A schematic diagram of another embodiment of a reinforcement plate is shown in FIG.

[0025] Reference numerals:

[0026] 100. Battery pack;

[0027] 10. Box body; 11. Side beam;

[0028] 20. Liquid cooling plate; 21. Connecting plate; 211. Positioning groove;

[0029] 30. reinforcing plate; 31. first plate; 32. second plate; 33. reinforcing rib;

[0030] 40. Adhesive;

[0031] 50. Bottom plate;

[0032] 60. Module assembly;

[0033] 70. Pressing plate;

[0034] 80. Cover plate. DETAILED DESCRIPTION

[0035] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0036] Please refer to the following Figure 1-7 A battery pack 100 according to an embodiment of the present invention is described.

[0037] Reference Figure 1 , Figure 3 , Figure 4 and Figure 5 According to the battery pack 100 of the embodiment of the utility model, it includes: a box body 10 and a liquid cooling plate 20. Specifically, the box body 10 is provided with a plurality of side beams 11, that is, the box body 10 can be provided with four, five or six or more side beams 11, and the plurality of side beams 11 enclose the box body 10; the liquid cooling plate 20 is provided with a liquid cooling pipe for cooling the battery pack 100, and the liquid cooling plate 20 is provided with connecting plates 21 on both sides of the left and right directions of the vehicle, and the connecting plates 21 are fixedly connected to the side beams 11.

[0038] For example, Figure 3 As shown, the box 10 is provided with four side beams 11, and the four side beams 11 enclose a rectangular box 10 that is open at the top and bottom. The left and right sides of the liquid cooling plate 20 are provided with connecting plates 21. The connecting plate 21 on the left extends to the left and is fixedly connected to the side beam 11 on the left, and the connecting plate 21 on the right extends to the right and is fixedly connected to the side beam 11 on the right. Preferably, the connecting plate 21 and the liquid cooling plate 20 can be screwed or plugged, which can not only ensure the connection strength between the liquid cooling plate 20 and the connecting plate 21, but also improve the connection efficiency between the cold plate and the connecting plate 21.

[0039] The battery pack 100 of the utility model is provided with a connecting plate 21 on the liquid cooling plate 20, and the connecting plate 21 is connected to the side beams 11 on the left and right sides of the box body 10, which can improve the strength of the box body 10 in the left and right directions, thereby improving the anti-collision performance of the left and right sides of the box body 10, and further improving the protective effect of the box body 10 on the module assembly 60, and improving the safety of the battery pack 100. At the same time, the connecting plate 21 can facilitate the connection between the liquid cooling plate 20 and the box body 10, thereby improving the connection efficiency of the liquid cooling plate 20 and the box body 10, saving the assembly time of the battery pack 100, and improving the functional integration of the liquid cooling plate 20. In addition, the liquid cooling plate 20 can perform heat exchange on the module assembly 60 in the box body 10, thereby effectively preventing the module assembly 60 from thermal runaway, and further improving the safety of the battery pack 100.

[0040] According to the battery pack 100 of the embodiment of the utility model, a connecting plate 21 is arranged on the support plate, and the connecting plate 21 is connected to the side beams 11 on the left and right sides, which can improve the anti-collision performance of the left and right sides of the box body 10, thereby improving the protection effect of the box body 10 on the module assembly 60, improving the safety of the battery pack 100, and at the same time, can improve the connection efficiency between the liquid cooling plate 20 and the box body 10, saving the assembly time of the battery pack 100.

[0041] According to some embodiments of the present invention, referring to Figure 2 and Figure 3 The liquid cooling plate 20 is arranged on the lower side of the box body 10 (such as Figure 2 The lower side of the box 10 shown in the figure), and the connecting plate 21 is arranged at the bottom of the side beam 11. Thus, the liquid cooling plate 20 can close the lower side of the box 10, thereby providing a placement position for the module assembly 60, and at the same time, it is convenient for the liquid cooling plate 20 to perform heat exchange on the module assembly 60. In addition, the connecting plate 21 at the bottom of the side beam 11 can reduce the protruding length of the connecting plate 21, thereby reducing the material used for the connecting plate 21, thereby reducing the production cost.

[0042] According to some embodiments of the present invention, referring to Figure 2 and Figure 4, the connecting plate 21 is bonded to the side beam 11. Thus, the connection strength between the connecting plate 21 and the side beam 11 can be ensured, and the connection plate 21 and the side beam 11 can be prevented from being separated. At the same time, this connection form has a simple process and is easy to operate, thereby improving the connection efficiency between the connecting plate 21 and the side beam 11.

[0043] For example, Figure 2 and Figure 4 As shown, an adhesive 40 is applied between the connecting plate 21 and the side beam 11 , so that the connection effect between the connecting plate 21 and the side beam 11 can be ensured.

[0044] According to some embodiments of the present invention, referring to Figure 4 and Figure 5 The connecting plate 21 is provided with a plurality of positioning grooves 211, that is, the connecting plate 21 is provided with two, three or four or more positioning grooves 211, and the plurality of positioning grooves 211 are arranged along the extending direction of the connecting plate 21 (such as Figure 5 Thus, when the connecting plate 21 is connected to the side beam 11, the positioning groove 211 can provide positioning for the connecting plate 21, thereby improving the connection efficiency. At the same time, multiple positioning grooves 211 can improve the positioning accuracy, thereby further improving the connection efficiency.

[0045] According to some optional embodiments of the present invention, referring to Figure 4 and Figure 5 The positioning groove 211 extends along the edge of the connecting plate 21 toward the liquid cooling plate 20, and the positioning groove 211 extends along the thickness direction of the connecting plate 21 (such as Figure 5 The connecting plate 21 is shown in the upper and lower directions of the connecting plate 21 as shown in the figure. Therefore, the structural form of the positioning groove 211 is simple and convenient to process, thereby improving the processing efficiency of the connecting plate 21.

[0046] According to some embodiments of the present invention, referring to Figure 2 , Figure 4 and Figure 6 The battery pack 100 includes a reinforcing plate 30 connected to a surface of the connecting plate 21 facing away from the box body 10 (eg Figure 4 Thus, the reinforcing plate 30 can strengthen the strength of the connecting plate 21 and prevent the connecting plate 21 from being damaged, thereby increasing the anti-collision performance of the connecting plate 21, and thus further improving the anti-collision performance of the left and right sides of the box body 10.

[0047] According to some optional embodiments of the present invention, referring to Figure 4, the reinforcing plate 30 is bonded and connected to the connecting plate 21. Thus, the connection strength between the reinforcing plate 30 and the connecting plate 21 can be ensured to prevent the reinforcing plate 30 from being separated from the connecting plate 21. At the same time, this connection form is simple in process and convenient in operation, thereby improving the connection efficiency between the reinforcing plate 30 and the connecting plate 21.

[0048] For example, Figure 4 As shown, adhesive 40 is applied between the reinforcing plate 30 and the connecting plate 21 , so that the connection strength between the reinforcing plate 30 and the connecting plate 21 can be ensured.

[0049] According to some embodiments of the present invention, referring to Figure 3 and Figure 4 The extension length of the reinforcing plate 30 in the front-rear direction of the vehicle is 700mm-1200mm, and the reinforcing plate 30 is a horizontal plate. Therefore, by limiting the length of the reinforcing plate 30, the reinforcing effect of the reinforcing plate 30 on the connecting plate 21 can be ensured, thereby ensuring the reinforcing effect of the reinforcing plate 30 on the anti-collision performance of the left and right sides of the box body 10. At the same time, the reinforcing plate 30 has a simple structure and is easy to process.

[0050] For example, Figure 3 and Figure 4 As shown, the extension length of the reinforcing plate 30 in the front-rear direction of the vehicle may be: 700 mm, 800 mm, 900 mm, 1000 mm, 1100 mm or 1200 mm.

[0051] According to some embodiments of the present invention, referring to Figure 3 and Figure 6 The reinforcing plate 30 includes a first plate 31 and a second plate 32, the first plate 31 is connected to the second plate 32, and the first plate 31 is arranged on the lower side of the connecting plate 21 (such as Figure 3 The second plate 32 is disposed on the lower side of the connecting plate 21 (as shown in FIG. Figure 3 The first plate 31 is connected to the lower side of the liquid cooling plate 20 (shown in FIG. 1 ) and is connected to the lower surface of the liquid cooling plate 20. Thus, the first plate 31 can strengthen the strength of the connecting plate 21, thereby improving the anti-collision performance of the left and right sides of the box body 10, and the second plate 32 is connected to the liquid cooling plate 20. The second plate 32 can avoid the liquid cooling pipe in the liquid cooling plate 20, thereby facilitating the connection between the reinforcing plate 30 and the liquid cooling plate 20.

[0052] For example, Figure 3 and Figure 6 As shown, the first plate 31 and the second plate 32 extend in the front-to-back direction and are arranged at intervals in the left-to-right direction. The first plate 31 is arranged on the side close to the outer side of the vehicle, and the second plate 32 is arranged on the side close to the inner side of the vehicle. In the up and down directions, the first plate 31 is higher than the second plate 32. The first plate 31 is connected to the lower surface of the connecting plate 21, and the second plate 32 is connected to the lower surface of the liquid cooling plate 20.

[0053] Furthermore, if Figure 3 and Figure 7 As shown, the reinforcing plate 30 includes a plurality of reinforcing ribs 33, that is, the reinforcing plate 30 may include two, three, or four or more reinforcing ribs 33, and the plurality of reinforcing ribs 33 extend along the extending direction of the reinforcing plate 30 (such as Figure 7 The reinforcing ribs 33 are arranged at intervals in the front and rear directions of the reinforcing plate 30 shown in the figure, and the reinforcing ribs 33 protrude upward. Thus, the reinforcing ribs 33 can strengthen the strength of the reinforcing plate 30, avoid damage to the reinforcing plate 30, and thus ensure the service life of the reinforcing plate 30.

[0054] For example, Figure 3 and Figure 7 As shown, the reinforcing plate 30 includes a plurality of reinforcing ribs 33, which extend in the left-right direction and are arranged at intervals in the front-to-back direction on the reinforcing plate 30, and the reinforcing ribs 33 protrude upward. When the reinforcing plate 30 is connected to the connecting plate 21, it is only necessary to apply the adhesive 40 on the upper surface of the reinforcing ribs 33, and the positions between adjacent reinforcing ribs 33 do not need to be coated with the adhesive 40, thereby reducing the amount of adhesive 40 used and reducing the production cost.

[0055] Furthermore, if Figure 1 and Figure 3 As shown, the battery pack 100 includes: a module assembly 60, the module assembly 60 is arranged in the box body 10, a cover plate 80 is arranged on the upper side of the box body 10, a bottom plate 50 is arranged at the bottom of the box body 10, and the liquid cooling plate 20 is arranged between the bottom plate 50 and the box body 10. Thus, the cover plate 80 covers the top of the box body 10, the bottom plate 50 covers the bottom of the box body 10, and the cover plate 80, the box body 10 and the bottom plate 50 form a closed structure, so that the module assembly 60 inside the box body 10 can be effectively protected.

[0056] Furthermore, if Figure 1 and Figure 3 As shown, a pressing plate 70 is provided on the module assembly 60. Thus, the pressing plate 70 can effectively prevent the module assembly 60 from moving in the box body 10, thereby avoiding collision between the module assembly 60 and the box body 10.

[0057] According to the vehicle of the second embodiment of the utility model, Figure 1 , including the battery pack 100 of the first aspect of this embodiment.

[0058] According to the vehicle of the embodiment of the utility model, by setting the battery pack 100 of the first embodiment mentioned above, a connecting plate 21 is set on the support plate, and the connecting plate 21 is connected to the side beams 11 on the left and right sides, which can improve the anti-collision performance of the left and right sides of the box body 10, thereby improving the protection effect of the box body 10 on the module assembly 60, improving the safety of the battery pack 100, and at the same time, can improve the connection efficiency between the liquid cooling plate 20 and the box body 10, saving the assembly time of the battery pack 100.

[0059] 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.

[0060] 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 one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0061] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; 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. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0062] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means 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 utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described 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.

[0063] 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 spirit 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 box body, wherein the box body is provided with a plurality of side beams, and the plurality of side beams enclose the box body; A liquid cooling plate is provided on the liquid cooling plate with a liquid cooling pipe for cooling the battery pack. The liquid cooling plate is provided with connecting plates on both sides of the vehicle in the left and right directions, and the connecting plates are fixedly connected to the side beams.

2. The battery pack according to claim 1, characterized in that: The liquid cooling plate is arranged on the lower side of the box body, and the connecting plate is arranged on the bottom of the side beam.

3. The battery pack according to claim 1, characterized in that: The connecting plate is bonded to the side beam.

4. The battery pack according to claim 1, characterized in that: The connecting plate is provided with a plurality of positioning grooves, and the plurality of positioning grooves are arranged at intervals along the extending direction of the connecting plate.

5. The battery pack according to claim 4, characterized in that: The positioning groove extends along the edge of the connecting plate toward the liquid cooling plate, and the positioning groove penetrates the connecting plate along the thickness direction of the connecting plate.

6. The battery pack according to any one of claims 2 to 5, characterized in that: include: A reinforcing plate is connected to a surface of the connecting plate on one side away from the box body.

7. The battery pack according to claim 6, characterized in that: The reinforcing plate is bonded to the connecting plate.

8. The battery pack according to claim 6, characterized in that: The extension length of the reinforcement plate in the front-rear direction of the vehicle is 700mm-1200mm, and the reinforcement plate is a horizontal plate.

9. The battery pack according to claim 6, characterized in that: The reinforcing plate includes a first plate and a second plate, the first plate is connected to the second plate, the first plate is arranged at the lower side of the connecting plate and connected to the lower surface of the connecting plate, the second plate is arranged at the lower side of the liquid cooling plate and connected to the lower surface of the liquid cooling plate, and / or, The reinforcing plate comprises a plurality of reinforcing ribs, the plurality of reinforcing ribs are arranged at intervals along the extending direction of the reinforcing plate, and the reinforcing ribs protrude upward.

10. A vehicle, characterized in that: Comprising a battery pack according to any one of claims 1-9.

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