Battery pack switching structure and vehicle

Abstract

The utility model discloses a battery pack transfer structure and a vehicle, the battery pack transfer structure comprises a transfer beam, the transfer beam is arranged between a doorsill beam and a battery pack, the transfer beam extends along the length direction of the doorsill beam, the transfer beam comprises an upper plate and a lower plate, and the upper plate and the lower plate are butted up and down and form a mounting cavity; one side of the upper plate is connected with one side of the lower plate in the width direction of a vehicle, and the other side of the upper plate is connected with the other side of the lower plate in the height direction of the vehicle. The connection directions of the two sides of the upper plate and the two sides of the corresponding lower plate are different, so that the stress directions of the two sides of the transfer beam are inconsistent, the connection stability of the upper plate and the lower plate is improved, and the safety performance of the battery pack transfer structure is further improved.

Description

Technical Field

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

[0002] For pure electric or hybrid vehicles, a battery pack needs to be installed at the bottom of the vehicle, and the sill beam and the battery pack are connected through a battery pack transfer structure. The battery pack transfer structure in the prior art includes an upper plate and a lower plate. When the upper plate and the lower plate are connected, the two sides of the upper plate and the corresponding two sides of the lower plate are connected along the width direction of the vehicle, or the two sides of the upper plate and the corresponding two sides of the lower plate are connected along the height direction of the vehicle. When the battery pack transfer structure is hit, the force direction of the connection between the upper plate and the lower plate is consistent, and the connection between the upper plate and the lower plate of the transfer beam is prone to deformation or cracking. Utility Model Content

[0003] The utility model aims to at least solve the technical problem in the prior art that when the pool pack transfer structure is hit, the force directions at the connection between the upper plate and the lower plate are consistent, and the connection between the upper plate and the lower plate of the transfer beam is easily deformed or cracked.

[0004] To this end, an object of the utility model is to propose a battery pack transfer structure, which includes a transfer beam, which is arranged between the door sill beam and the battery pack, and the transfer beam extends along the length direction of the door sill beam. The transfer beam includes an upper plate and a lower plate that are butt-jointed up and down and form an installation cavity, one side of the upper plate is connected to one side of the lower plate along the vehicle width direction, and the other side of the upper plate is connected to the other side of the lower plate along the vehicle height direction.

[0005] In some embodiments, the upper plate is a U-shaped structure with an opening downward, comprising a first transverse plate and two first side plates extending downward from both ends of the first transverse plate;

[0006] The lower plate is an L-shaped structure, comprising a second transverse plate and a second side plate extending upward from one side of the second transverse plate;

[0007] One of the two first side plates is connected to the second side plate in a vehicle width direction, and the other of the two first side plates is connected to the other side of the second cross plate in a vehicle height direction.

[0008] In some embodiments, the first side panel is located on an inner side of the second side panel in a vehicle width direction.

[0009] In some embodiments, the first side plate located on the outer side in the vehicle width direction has a step portion.

[0010] In some embodiments, the top of the upper plate has convex portions and concave portions alternately arranged along its length.

[0011] In some embodiments, the threshold beam is connected to the upper plate via a first fastener, the lower plate is connected to the battery pack via a second fastener, and the first fastener and the second fastener are staggered along the length direction of the transfer beam.

[0012] In some embodiments, a mounting hole for mounting the first fastener is formed on the upper plate, and the mounting hole is arranged on the raised portion.

[0013] In some embodiments, there are multiple mounting holes, and the hole spacing between two adjacent mounting holes is different.

[0014] In some embodiments, an avoidance hole for the first fastener is opened on the lower plate at a position corresponding to the mounting hole.

[0015] In some embodiments, both ends of the transfer beam are respectively provided with pre-hanging structures connected to the threshold beam, and the structures of the pre-hanging structures located at both ends of the transfer beam are the same.

[0016] In some embodiments, the pre-hanging structure is a T-shaped hook, and a T-shaped hole matching with the T-shaped hook is provided on the threshold beam, and there is an installation gap between the T-shaped hook and the T-shaped hole.

[0017] Another object of the present invention is to provide a vehicle, comprising the above-mentioned battery pack switching structure.

[0018] The battery pack adapter structure and vehicle provided by the embodiment of the utility model have the following beneficial effects:

[0019] (1) The battery pack is installed on the door sill beam through the transfer beam. One side of the upper plate of the transfer beam is connected to one side of the lower plate along the width direction of the vehicle, and the other side of the upper plate of the transfer beam is connected to the other side of the lower plate along the height direction of the vehicle. The connection directions of the two sides of the upper plate and the two sides of the corresponding lower plate are different, so that the force directions of the two sides of the transfer beam are inconsistent, which improves the connection stability of the upper plate and the lower plate, thereby improving the safety performance of the battery pack transfer structure;

[0020] (2) The top of the upper plate has convex parts and concave parts arranged alternately along its length, so that the contact area between the upper plate and the threshold beam is small, thereby improving the corrosion resistance of the connection between the upper plate and the threshold beam;

[0021] (3) The sill beam and the upper plate are connected by a first fastener, and the lower plate and the battery pack are connected by a second fastener. The first fastener and the second fastener are staggered along the length direction of the transfer beam, so that the space occupied by the first fastener and the second fastener along the height direction of the vehicle is reduced, thereby reducing the height of the battery pack protruding from the bottom of the vehicle and improving the aesthetic appearance. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0023] Figure 1 It is a schematic diagram of the battery pack adapter structure in the embodiment of the utility model in use;

[0024] Figure 2 It is a structural schematic diagram of a transfer beam in an embodiment of the utility model;

[0025] Figure 3 is a three-dimensional diagram of a transfer beam in an embodiment of the utility model;

[0026] Figure 4 is a cross-sectional view of a transfer beam in an embodiment of the utility model;

[0027] Figure 5 is a three-dimensional diagram of the transfer beam in the embodiment of the utility model from another perspective;

[0028] Figure 6 It is a partial enlarged view of the pre-hanging structure in the embodiment of the utility model;

[0029] Figure 7 This is a schematic diagram of a first installation state of a T-shaped hook and a T-shaped hole in an embodiment of the utility model;

[0030] Figure 8 It is a schematic diagram of a second installation state of the T-shaped hook and the T-shaped hole in the embodiment of the utility model;

[0031] Fig. 9 It is a schematic diagram of a third installation state of the T-shaped hook and the T-shaped hole in the embodiment of the utility model.

[0032] Reference numerals:

[0033] 1. Transfer beam; 11. Upper plate; 111. First horizontal plate; 112. First side plate; 113. Step portion; 114. Raised portion; 115. Concave portion; 116. Mounting hole; 12. Lower plate; 121. Second horizontal plate; 122. Second side plate; 123. Avoidance hole; 13. Mounting cavity; 5. First fastener; 6. Second fastener; 7. Pre-hanging structure; 71. T-shaped hook; 72. T-shaped hole; 721. Pre-hanging slot; 722. Snap-in slot; 73. Mounting gap; 100. Door sill beam; 200. Battery pack. DETAILED DESCRIPTION

[0034] Various aspects and features of the present invention are described herein with reference to the accompanying drawings.

[0035] It should be understood that various modifications may be made to the embodiments of the present application. Therefore, the above description should not be considered as limiting, but only as an example of the embodiments. Other modifications within the scope and spirit of the present utility model will occur to those skilled in the art.

[0036] The accompanying drawings, which are included in and constitute a part of the specification, illustrate embodiments of the present invention and, together with the general description of the present invention given above and the detailed description of the embodiments given below, are used to explain the principles of the present invention.

[0037] These and other characteristics of the invention will become apparent from the following description of a preferred form of embodiment given as a non-limiting example, with reference to the accompanying drawings.

[0038] It should also be understood that although the present invention has been described with reference to some specific examples, those skilled in the art will be able to realize many other equivalent forms of the present invention that have the features described in the claims and are therefore within the scope of protection defined thereby.

[0039] The above and other aspects, features and advantages of the present invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings.

[0040] Specific embodiments of the present invention are described hereinafter with reference to the accompanying drawings; however, it should be understood that the embodiments applied for are merely examples of the present invention, which may be implemented in a variety of ways. Well-known and / or repeated functions and structures are not described in detail to avoid unnecessary or redundant details that obscure the present invention. Therefore, the specific structural and functional details applied for herein are not intended to be limiting, but merely serve as the basis and representative basis for the claims to teach those skilled in the art to use the present invention in a variety of ways with substantially any suitable detailed structure.

[0041] The first embodiment of the utility model provides a battery pack switching structure, such as Figure 1 and Figure 2 As shown, the battery pack adapter structure includes an adapter beam 1, which is arranged between the door sill beam 100 and the battery pack 200. The adapter beam 1 extends along the length direction of the door sill beam 100. The adapter beam 1 includes an upper plate 11 and a lower plate 12 that are connected to each other and form a mounting cavity 13. One side of the upper plate 11 is connected to one side of the lower plate 12 along the vehicle width direction, and the other side of the upper plate 11 is connected to the other side of the lower plate 12 along the vehicle height direction.

[0042] The upper plate 11 and the lower plate 12 of the adapter beam 1 are butted together to form an installation cavity 13, making the adapter beam 1 a hollow beam, which is beneficial to reducing the weight of the adapter beam 1 and achieving lightweight of the vehicle. At the same time, an installation cavity 13 is formed between the upper plate 11 and the lower plate 12, and installation components (for example: installation components for fixing the adapter beam 1 and the door sill beam 100 and installation components for the adapter beam 1 and the battery pack 200) can be arranged in the installation cavity 13 to save space.

[0043] Two threshold beams 100 are arranged at intervals along the width direction of the vehicle, and the battery pack 200 is installed between the two threshold beams 100. The adapter beam 1 is used to connect the two threshold beams 100 to the battery pack 200 respectively. When the two sides of the upper plate 11 of the adapter beam 1 and the two sides of the lower plate 12 of the adapter beam 1 are installed, they have different installation directions respectively, and different forces are applied at the connection between the upper plate 11 and the lower plate 12, so as to realize a stable connection between the upper plate and the lower plate.

[0044] Specifically, Figure 2 As shown, the upper plate 11 is a U-shaped structure with an opening facing downward, and includes a first transverse plate 111 and two first side plates 112 extending downward from both ends of the first transverse plate 111;

[0045] The lower plate 12 is an L-shaped structure, including a second transverse plate 121 and a second side plate 122 extending upward from one side of the second transverse plate 121 .

[0046] In this embodiment, the upper plate 11 is U-shaped and the lower plate 12 is L-shaped, which are easy to process and shape, can achieve high-precision matching, and reduce the difficulty of process matching.

[0047] Furthermore, one of the two first side panels 112 is connected to the second side panel 122 along the vehicle width direction, wherein the first side panel 112 is arranged toward the inside of the vehicle, and the other of the two first side panels 112 is connected to the other side of the second cross panel 121 along the vehicle height direction, wherein the first side panel 112 is arranged toward the outside of the vehicle. The two first side panels 112 and their corresponding second side panels 122 are welded in different directions, respectively. If the transfer beam 1 is hit, since the two welds have different force directions, the force of the transfer beam 1 can be dispersed, thereby improving the stability of the connection between the transfer beam 1 and the sill beam 100, and between the transfer beam 1 and the battery pack 200.

[0048] The connection positions of the first side panel 112 and the second side panel 122 connected in the vehicle width direction partially overlap, so that the connection between the upper panel 11 and the lower panel 12 has greater structural strength.

[0049] In other embodiments, one of the two first side panels 112 is connected to the second side panel 122 along the vehicle width direction, and the first side panel 112 is arranged toward the outside of the vehicle, and the other first side panel 112 is connected to the other side of the second cross panel 121 along the vehicle height direction, and the first side panel 112 is arranged toward the inside of the vehicle.

[0050] In other embodiments, the upper plate 11 is L-shaped, and the lower plate 12 is U-shaped.

[0051] In other embodiments, the upper plate 11 is arc-shaped or triangular, and the lower plate 12 is L-shaped.

[0052] In other embodiments, the upper plate 11 is L-shaped, and the lower plate 12 is arc-shaped or triangular.

[0053] In some embodiments, the first side plate 112 is located inside the second side plate 122 along the vehicle width direction. The first side plate 112 located at the upper part is arranged inside, and the second side plate 122 located at the lower part is located outside, so that the first side plate 112 is welded to the second side plate 122, which facilitates the welding operation.

[0054] In some other embodiments, the second side panel 122 is located on the inner side of the first side panel 112 along the vehicle width direction.

[0055] In some embodiments, the first side plate 112 located on the outer side in the vehicle width direction has a step portion 113. The first side plate 112 is the first side plate 112 of the two first side plates 112 that is connected to the second side plate 122 along the vehicle height. The first side plate 112 is disposed on the outer side of the vehicle and is provided with a step portion 113, which plays a role in strengthening the structural strength of the transfer beam 1. At the same time, the step portion 113 protrudes outward, so that the width of the lower structure of the transfer beam 1 is greater than the width of the upper structure, which can improve the structural stability of the transfer beam 1.

[0056] In some embodiments, Figure 3 and Figure 4As shown, the threshold beam 100 is connected to the upper plate 11 through the first fastener 5, and the lower plate 12 is connected to the battery pack 200 through the second fastener 6. During installation, the transfer beam 1 is installed from bottom to top at the threshold beam 100, so the first fastener 5 is also set from bottom to top to fix the threshold beam 100 and the transfer beam 1 together. Further, the battery pack 200 is installed from bottom to top on the lower plate 12 of the transfer beam 1, so the second fastener 6 is also installed from bottom to top to fix the battery pack 200 and the transfer beam 1 together. If the first fastener 5 and the second fastener 6 are coaxially arranged in the vehicle height direction, in order to avoid interference between the bottom of the first fastener 5 and the top of the second fastener 6, the installation cavity 13 needs to have a large height, which will cause the battery pack 200 to be exposed more in the vehicle height direction. Therefore, the first fastener 5 and the second fastener 6 are staggered along the length direction of the transfer beam 1, saving the Z-direction (i.e., the vehicle height direction) space of the installation cavity 13, making the battery pack 200 less exposed, and improving the side view aesthetics.

[0057] Exemplarily, the first fastener 5 and the second fastener 6 are both bolts.

[0058] In some embodiments, Figure 3 As shown, the top of the upper plate 11 is staggered with raised portions 114 and concave portions 115 along its length. The upper plate 11 is provided with raised portions 114 and concave portions 115, which can effectively increase the structural strength of the upper plate 11. The raised portions 114 and concave portions 115 are staggered, which can reduce the contact area between the upper plate 11 and the door sill beam 100 and improve the corrosion resistance.

[0059] In some embodiments, the upper plate 11 is provided with a mounting hole 116 for mounting the first fastener 5, and the mounting hole 116 is provided on the protrusion 114. The staggered protrusions 114 form a reinforcement cavity between the upper plate 11 and the lower plate 12, which strengthens the rigidity of the upper plate 11. At the same time, since the provision of the mounting holes 116 reduces the rigidity of the position where the holes are opened, the provision of the protrusions 114 can compensate for the rigidity loss caused by the provision of the mounting holes 116.

[0060] In some embodiments, Figure 4 As shown, there are multiple mounting holes 116, and the threshold beam 100 and the upper plate 11 of the adapter beam 1 are connected by multiple first fasteners 5, so that the threshold beam 100 and the adapter beam 1 are connected with multiple mounting points. When the adapter beam 1 is installed to the threshold beam 100, the first end of the upper plate 11 is connected to the first end of the lower plate 12, and the second end of the upper plate 11 is connected to the second end of the lower plate 12. The hole spacings between two adjacent mounting holes 116 are different, so as to avoid the first end of the upper plate 11 being connected to the second end of the lower plate 12, that is, to avoid the upper plate 11 being installed upside down.

[0061] In some embodiments, Figure 5As shown, a avoidance hole 123 for the first fastener 5 is provided at a position corresponding to the mounting hole 116 on the lower plate 12. The transfer beam 1 is installed from bottom to top at the threshold beam 100, and the first fastener 5 is also installed from bottom to top. The avoidance hole 123 corresponding to the mounting hole 116 is provided on the lower plate 12, so that the first fastener 5 can be installed through the avoidance hole 123.

[0062] In some embodiments, Figure 6 As shown, the two ends of the transfer beam 1 are respectively provided with pre-hanging structures 7 connected to the threshold beam 100, and the structures of the pre-hanging structures 7 at the two ends of the transfer beam 1 are the same. Specifically, the transfer beam 1 is assembled to the threshold beam 100 from bottom to top, and the pre-hanging structure 7 first pre-installs the transfer beam 1 to the threshold beam 100, and then fixes the transfer beam 1 and the threshold beam 100 through the first fastener 5. The pre-hanging structures 7 are respectively provided at the two ends of the transfer beam 1, and the pre-hanging structures 7 at the two ends are the same, which is convenient for processing and forming.

[0063] In some embodiments, Figure 7-Figure 9 As shown, the pre-hanging structure 7 is a T-shaped hook 71, and a T-shaped hole 72 is provided on the threshold beam 100 to match the T-shaped hook 71, and there is an installation gap 73 between the T-shaped hook 71 and the T-shaped hole 72. Among them, the T-shaped hole 72 has a pre-hanging groove 721 and a clamping groove 722 that are interconnected. Specifically, the pre-installation process includes two steps of pre-hanging and clamping. The pre-hanging process is as follows: when the adapter beam 1 is installed from bottom to top, the T-shaped hook 71 is first extended into the pre-hanging groove 721, and then the adapter beam 1 is moved along the length direction of the threshold beam 100, so that the T-shaped hook 71 is clamped into the clamping groove 722 to achieve pre-hanging. The clamping process is as follows: the adapter beam 1 is continuously moved to move in the clamping groove 722, and the T-shaped hook 71 moves to the absolute position to achieve fastening. The installation gap 73 between the T-shaped hook 71 and the T-shaped hole 72 refers to the gap between the absolute position of the T-shaped hook 71 and the hole wall of the clamping groove 722 along the length direction of the transfer beam 1. The installation gap 73 can increase the tolerance capability.

[0064] Among them, the width of the T-shaped hook 71 is smaller than the width of the pre-hanging groove 721, ensuring that the T-shaped hook 71 can smoothly extend into the pre-hanging groove 721, and the width of the T-shaped hook 71 is larger than the width of the snap-in groove 722, ensuring that the T-shaped hook 71 can be snapped into the snap-in groove 722.

[0065] Furthermore, the battery pack transfer structure can be used in pure electric vehicles as well as hybrid vehicles.

[0066] A second embodiment of the present invention provides a vehicle, comprising the above-mentioned battery pack switching structure.

[0067] 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.

[0068] In the description of the present invention, "first feature" or "second feature" may include one or more of the features.

[0069] In the description of the present invention, "plurality" means two or more.

[0070] In the description of the present invention, a first feature being “above” or “below” a second feature may include that the first and second features are directly in contact with each other, or may include that the first and second features are not in direct contact but are in contact with each other via another feature therebetween.

[0071] In the description of the present invention, a first feature “above”, “over” and “above” a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature.

[0072] In the description of the present invention, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" 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 present invention. In this specification, the schematic representation of the above terms does 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.

[0073] 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 transfer structure, characterized in that: It includes a transfer beam, which is arranged between the door sill beam and the battery pack, and extends along the length direction of the door sill beam. The transfer beam includes an upper plate and a lower plate that are connected to each other and form an installation cavity. One side of the upper plate is connected to one side of the lower plate along the vehicle width direction, and the other side of the upper plate is connected to the other side of the lower plate along the vehicle height direction.

2. A battery pack transfer structure according to claim 1, characterized in that: The upper plate is a U-shaped structure with an opening facing downward, comprising a first transverse plate and two first side plates extending downward from both ends of the first transverse plate; The lower plate is an L-shaped structure, comprising a second transverse plate and a second side plate extending upward from one side of the second transverse plate; One of the two first side plates is connected to the second side plate in a vehicle width direction, and the other of the two first side plates is connected to the other side of the second cross plate in a vehicle height direction.

3. A battery pack transfer structure according to claim 2, characterized in that: The first side panel is located on the inner side of the second side panel along the vehicle width direction; and / or The first side plate located on the outer side in the vehicle width direction has a step portion.

4. A battery pack transfer structure according to claim 1, characterized in that: The top of the upper plate is provided with convex parts and concave parts alternately arranged along the length direction thereof.

5. A battery pack transfer structure according to claim 4, characterized in that: The threshold beam is connected to the upper plate via a first fastener, the lower plate is connected to the battery pack via a second fastener, and the first fastener and the second fastener are staggered along the length direction of the transfer beam.

6. A battery pack transfer structure according to claim 5, characterized in that: The upper plate is provided with a mounting hole for mounting the first fastener, and the mounting hole is arranged on the raised portion.

7. A battery pack transfer structure according to claim 6, characterized in that: There are multiple mounting holes, and the hole spacings between two adjacent mounting holes are different; and / or An avoidance hole for the first fastener is provided on the lower plate at a position corresponding to the mounting hole.

8. The battery pack transfer structure according to claim 1, characterized in that: Both ends of the transfer beam are respectively provided with pre-hanging structures connected with the threshold beam, and the pre-hanging structures located at both ends of the transfer beam have the same structure.

9. A battery pack transfer structure according to claim 8, characterized in that: The pre-hanging structure is a T-shaped hook, and a T-shaped hole matching with the T-shaped hook is provided on the threshold beam, and there is an installation gap between the T-shaped hook and the T-shaped hole.

10. A vehicle, characterized in that: A battery pack transfer structure comprising any one of claims 1-9.

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