Battery frame, battery assembly and vehicle

Abstract

The utility model provides a battery frame, a battery assembly and a vehicle, the battery frame provided by the utility model comprises a back plate, an anti-rotation piece and a stop piece, and the back plate is used for being connected with a frame of the vehicle through a plurality of first bolts; the anti-rotation piece is arranged on the side, away from the frame, of the back plate, an anti-rotation hole is formed in the anti-rotation piece, a first bolt head of a first bolt is located in the anti-rotation hole, and the shape of the anti-rotation hole is matched with the shape of the first bolt head so as to prevent the first bolt from rotating; the stop piece is connected to the side, away from the back plate, of the anti-rotation piece, the anti-rotation piece is provided with a first end face abutting against the stop piece, and the orthographic projection area of the stop piece on the first end face covers the anti-rotation hole. The connection efficiency between the battery frame and the frame is high, and the connection reliability is good.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicles, in particular to a battery frame, a battery assembly applying the battery frame and a vehicle applying the battery assembly. BACKGROUND

[0002] In an electric vehicle, the greater the power consumption of the vehicle, the more the number of battery packs will be set, therefore, in the case of a large number of battery packs, it is very important to effectively fix the battery packs on the vehicle frame for the whole vehicle.

[0003] In the related art, an electric vehicle includes a vehicle frame, a battery frame and a plurality of battery packs, the plurality of battery packs are arranged in the battery frame, and the battery frame and the vehicle frame are connected together through a plurality of bolts. In the assembly process, the battery frame, the plurality of battery packs and the plurality of bolts are usually assembled together first, and then connected to the vehicle frame as a whole.

[0004] However, in the above assembly process of the electric vehicle, the bolts connecting the battery frame and the vehicle frame are prone to be withdrawn and fall off, on the one hand, which will affect the assembly efficiency of the whole vehicle, and on the other hand, which will affect the connection reliability between the battery frame and the vehicle frame. UTILITY MODEL CONTENT

[0005] The embodiments of the present application provide a battery frame, a battery assembly and a vehicle, which can avoid the bolts connecting the battery frame and the vehicle frame from being withdrawn and falling off to a certain extent in the assembly process, on the one hand, which can improve the assembly efficiency of the whole vehicle, and on the other hand, which can improve the connection reliability between the battery frame and the vehicle frame.

[0006] In a first aspect, the present application provides a battery frame applied to a vehicle, the battery frame comprising a back plate, an anti-rotation member and a stop member, the back plate being used to be connected to a vehicle frame of the vehicle through a plurality of first bolts; the anti-rotation member is arranged on a side of the back plate away from the vehicle frame, and the anti-rotation member is provided with an anti-rotation hole, a first bolt head of a first bolt is located in the anti-rotation hole, and the shape of the anti-rotation hole is adapted to the shape of the first bolt head to prevent the first bolt from rotating; the stop member is connected to a side of the anti-rotation member away from the back plate, the anti-rotation member has a first end face abutting against the stop member, and a normal projection area of the stop member on the first end face covers the anti-rotation hole.

[0007] As an optional implementation, the anti-rotation member is provided with a plurality of anti-rotation holes, and the plurality of anti-rotation holes are arranged in one-to-one correspondence with at least part of the plurality of first bolts.

[0008] As an optional implementation, the anti-rotation member and the stop member are both plate-shaped structures, and the contour shape of the stop member is adapted to the contour shape of the anti-rotation member.

[0009] As an optional implementation, the back plate has a second end face arranged to face the frame; the anti-rotation member and the stopper are detachably connected to the back plate by the second bolt, and an end of a second bolt rod of the second bolt does not protrude from the second end face.

[0010] As an optional implementation, the thickness of the anti-rotation member is greater than the axial dimension of the first bolt head.

[0011] As an optional implementation, the anti-rotation hole is in clearance fit with the first bolt head.

[0012] As an optional implementation, the distance between the hole wall of the anti-rotation hole and the side wall of the corresponding first bolt head is greater than or equal to 0.49 mm and less than or equal to 0.51 mm.

[0013] As an optional implementation, the back plate comprises a side plate and a bottom plate connected together, the side plate is connected to the side of the frame body and is used to be connected to the frame by the plurality of first bolts, and the bottom plate is connected to the bottom of the frame body.

[0014] In a second aspect, the application provides a battery assembly comprising the battery frame and a plurality of battery packs.

[0015] In a third aspect, the application provides a vehicle comprising the frame and the battery assembly.

[0016] In the battery frame, the battery assembly and the vehicle provided by the application, in the process of connecting the back plate to the frame, the cooperation of the anti-rotation hole and the first bolt head can avoid the rotation of the first bolt to a certain extent, and improve the use stability of the first bolt. Moreover, the first bolt is stopped by the stopper, so that the first bolt is prevented from moving radially and being withdrawn from the frame to a certain extent, so that the first bolt is prevented from falling off to a certain extent. On the one hand, the assembly efficiency between the battery frame and the frame is improved, and on the other hand, the connection reliability between the battery frame and the frame is improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 A structural schematic diagram of a first partial structure of a vehicle provided by an embodiment of the application is shown in the figure;

[0018] Figure 2 A structural schematic diagram of a second partial structure of a vehicle provided by an embodiment of the application is shown in the figure; Figure 1 A structural schematic diagram of a second partial structure of a vehicle provided by an embodiment of the application is shown in the figure;

[0019] Figure 3 A structural schematic diagram of a second partial structure of a vehicle provided by an embodiment of the application is shown in the figure;

[0020] Figure 4An exploded structural schematic view of a third partial structure of a vehicle is provided for an embodiment of the present application.

[0021] Figure 5 A structural schematic view of a fourth partial structure of a vehicle is provided for an embodiment of the present application.

[0022] Figure 6 A structural schematic view of a fifth partial structure of a vehicle is provided for an embodiment of the present application. Figure 4 A perspective structural schematic view of the structure shown.

[0023] Figure 7 A structural schematic view of a fifth partial structure of a vehicle is provided for an embodiment of the present application.

[0024] BRIEF DESCRIPTION OF THE DRAWINGS

[0025] 1, battery frame; 2, first bolt; 3, vehicle frame; 4, nut; 5, battery pack;

[0026] 11, back plate; 12, anti-rotation piece; 13, stop piece; 14, frame body; 15, support piece; 16, second bolt; 21, first bolt head; 22, first bolt rod; 31, mounting hole;

[0027] 111, side plate; 112, bottom plate; 113, second end face; 121, anti-rotation hole; 122, first end face; 123, second connecting hole; 131, first connecting hole; 141, accommodation space; 151, support plate; 152, support rib; 161, second bolt rod;

[0028] 1111, third connecting hole; 1511, avoidance hole. DETAILED DESCRIPTION

[0029] The technical solutions in the present application will be described clearly and thoroughly below with reference to the drawings. In the description of the embodiments of the present application, unless otherwise specified, " / " represents the meaning of or, for example, A / B can represent A or B: "and / or" in the text only describes the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which means that there are three cases of A alone, A and B together, and B alone. In addition, in the description of the embodiments of the present application, "multiple" means two or more than two.

[0030] Hereinafter, the terms "first" and "second" are used only for descriptive purposes and cannot be understood as implying or suggesting relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined with "first" and "second" can explicitly or implicitly include one or more features.

[0031] In an electric vehicle, the greater the power consumption of the vehicle, the greater the number of battery packs will be set, so it is very important to effectively fix the battery pack on the vehicle frame when the number of battery packs is large.

[0032] In the related art, an electric vehicle includes a vehicle frame, a battery frame and a plurality of battery packs, the plurality of battery packs are arranged in the battery frame, and the battery frame and the vehicle frame are connected together through a plurality of bolts. In the assembly process, the battery frame, the plurality of battery packs and the plurality of bolts are usually assembled together first, and then connected to the vehicle frame as a whole.

[0033] However, in the above assembly process of the electric vehicle, the bolts connecting the battery frame and the vehicle frame are prone to be withdrawn and fall off, which on the one hand affects the assembly efficiency of the vehicle, and on the other hand affects the connection reliability between the battery frame and the vehicle frame.

[0034] Therefore, the embodiments of the present application provide a battery frame, a battery assembly and a vehicle, by positioning and limiting the first bolts connecting the battery frame and the vehicle frame, to avoid the first bolts from being withdrawn and falling off to a certain extent, to improve the overall assembly efficiency of the vehicle and the connection reliability between the battery frame and the vehicle frame.

[0035] It should be noted that the vehicle provided by the embodiments includes but is not limited to an electric vehicle.

[0036] Please refer to Figures 1 to 4 , Figure 1 the structure diagram of the first partial structure of the vehicle provided by the embodiments of the present application, Figure 2 is Figure 1 the exploded structure diagram of the structure shown, Figure 3 is the structure diagram of the second partial structure of the vehicle provided by the embodiments of the present application, Figure 4 is the exploded structure diagram of the third partial structure of the vehicle provided by the embodiments of the present application. As Figures 1 to 4 shown, the embodiments provide a battery frame 1 applied to a vehicle, the battery frame 1 includes a back plate 11, an anti-rotation piece 12 and a stop piece 13; the back plate 11 is used to be connected with a vehicle frame 3 of the vehicle through a plurality of first bolts 2; the anti-rotation piece 12 is arranged on the side of the back plate 11 away from the vehicle frame 3, and the anti-rotation piece 12 is provided with an anti-rotation hole 121, a first bolt head 21 of a first bolt 2 is located in an anti-rotation hole 121, the shape of the anti-rotation hole 121 is matched with the shape of the first bolt head 21 to prevent the first bolt 2 from rotating; the stop piece 13 is connected to the side of the anti-rotation piece 12 away from the back plate 11, the anti-rotation piece 12 has a first end face 122 abutting with the stop piece 13, and the orthographic projection area of the stop piece 13 on the first end face 122 covers the anti-rotation hole 121.

[0037] The first bolt rod 22 of the first bolt 2 passes through the back plate 11 and the vehicle frame 3 and is connected with the nut 4.

[0038] In this way, in the process of connecting the back plate 11 and the vehicle frame 3, the cooperation of the anti-rotation hole 121 and the first bolt head 21 can avoid the rotation of the first bolt 2 to a certain extent, thereby improving the use stability of the first bolt 2. Moreover, the first bolt 2 can be stopped by the stopper 13, so as to avoid the first bolt 2 from moving radially and withdrawing from the vehicle frame 3 to a certain extent, thereby avoiding the first bolt 2 from falling off to a certain extent. On the one hand, the assembly efficiency between the battery frame 1 and the vehicle frame 3 can be improved, and on the other hand, the connection reliability between the battery frame 1 and the vehicle frame 3 can be improved.

[0039] In some embodiments, the battery frame 1 further comprises a frame body 14, an accommodation space 141 for accommodating the battery pack 5 is formed in the frame body 14, and the back plate 11 is connected to a support 15.

[0040] It should be noted that a plurality of battery packs 5 can be accommodated in the frame body 14, and at this time, a plurality of accommodation spaces 141 are formed in the frame body 14, and the plurality of accommodation spaces 141 and the plurality of battery packs 5 are arranged one by one.

[0041] Please continue to combine Figure 5 , Figure 5 The structure diagram of the fourth partial structure of the vehicle provided by the embodiment of the present application is shown in the figure. As shown in the figure, the support 15 comprises a support plate 151 and two spaced support ribs 152, the support plate 151 is connected to the side of the frame body 14, the two support ribs 152 are arranged at the bottom of the frame body 14 and are spaced along the length direction of the vehicle frame 3, and the support plate 151 is formed with a plurality of avoiding holes 1511 for avoiding the plurality of first bolts 2.

[0042] Among them, the anti-rotation piece 12 and the stopper 13 can also be located in the avoiding hole 1511.

[0043] It can be understood that the more the number of the first bolts 2 is, the stronger the connection reliability between the battery frame 1 and the vehicle frame 3 is, so please see Figure 3 For the connection between one back plate 11 and the vehicle frame 3, the first bolts 2 required can be arranged in two rows in the up-down direction, and each row comprises a plurality of spaced first bolts 2, wherein the arrangement direction of the plurality of spaced first bolts 2 in each row is consistent with the length direction of the vehicle frame 3.

[0044] Of course, if a plurality of back plates 11 are arranged on one battery frame 1, the connection reliability between the battery frame 1 and the vehicle frame 3 can be further improved. For example Figure 1 andFigure 2 As shown, in some specific embodiments, two support members 15 and two back plates 11 can be configured on one battery frame 1, one support member 15 corresponding to one back plate 11. In this way, the contact area between the battery frame 1 and the vehicle frame 3 can be increased, so as to further improve the connection reliability between the battery frame 1 and the vehicle frame 3.

[0045] It should be noted that the length direction of the vehicle frame 3 can refer to the x-x axis direction in Figure 1 and Figure 2 .

[0046] The connection mode between the support member 15 and the frame body 14 can be welding, and the connection mode between the support member 15 and the back plate 11 can be through threaded fasteners or welding. Herein, the connection mode between the support member 15 and the frame body 14 and the connection mode between the support member 15 and the back plate 11 are not specifically limited.

[0047] In some specific embodiments, the contour shape of the first bolt head 21 is a regular hexagon, and therefore the anti-rotation hole 121 is a regular hexagonal hole.

[0048] Please continue to refer to Figure 6 , Figure 6 for Figure 4 the structure of the perspective structural schematic diagram. Since the back plate 11 and the vehicle frame 3 are connected by a plurality of first bolts 2, in some embodiments, a plurality of anti-rotation holes 121 are formed on the anti-rotation member 12, and the plurality of anti-rotation holes 121 are arranged one by one corresponding to at least part of the plurality of first bolts 2. That is, the number of anti-rotation holes 121 arranged on the anti-rotation member 12 can be less than the number of first bolts 2, and a plurality of anti-rotation members 12 are arranged to form a stop limiting for a plurality of first bolts 2 corresponding to one back plate 11.

[0049] As shown in Figure 4 , in some specific embodiments, four anti-rotation holes 121 can be arranged on one anti-rotation member 12. If one back plate 11 and the vehicle frame 3 are connected by two rows of first bolts 2, and each row includes eight first bolts 2, then four anti-rotation members 12 are required. Herein, the number of anti-rotation members 12 arranged and the number of anti-rotation holes 121 arranged on one anti-rotation member 12 are not specifically limited.

[0050] In order to facilitate the manufacture of the anti-rotation member 12 and the stop member 13, the anti-rotation member 12 and the stop member 13 are both plate-shaped structures, and the contour shape of the stop member 13 is adapted to the contour shape of the anti-rotation member 12. In this way, the assembly efficiency of the battery frame 1 can be further improved.

[0051] In some embodiments, the thickness of the stopper 13 is 6 mm. Of course, in some other embodiments, the thickness of the stopper 13 can also be other values, and the thickness of the stopper 13 is not specifically limited here.

[0052] Furthermore, the back plate 11 may include a side plate 111 and a bottom plate 112 connected together, the side plate 111 is connected to the side of the support plate 151 facing the frame 3, and the side plate 111 is used to be connected to the frame 3 through multiple first bolts 2; the bottom plate 112 is connected to the bottom of the two support ribs 152.

[0053] Please continue to combine Figure 7 , Figure 7 This is a schematic diagram of a fifth partial structure of a vehicle according to an embodiment of the present application. In this embodiment, the side panel 111 has a second end surface 113 facing the vehicle frame 3; the side panel 111 and the stopper 13 are detachably connected to the side panel 111 via a second bolt 16.

[0054] Specifically, a first connecting hole 131 is provided on the stop member 13, a second connecting hole 123 is provided on the anti-rotation member 12 and is opposite to the first connecting hole 131, and a third connecting hole 1111 is provided on the side plate 111 and is opposite to the first connecting hole 131. The second bolt rod 161 passes through the first connecting hole 131, the second connecting hole 123 and the third connecting hole 1111 in sequence to connect the stop member 13, the anti-rotation member 12 and the side plate 111 together.

[0055] It can be understood that in order to improve the connection reliability between the stop member 13, the anti-rotation member 12 and the side panel 111, a plurality of first connection holes 131 can be set on the stop member 13, and accordingly, a plurality of second connection holes 123 will also be set on the anti-rotation member 12, and a plurality of third connection holes 1111 will also be set in the area of ​​the side panel 111 connected to the stop member 13 and the anti-rotation member 12.

[0056] For example, Figure 4 As shown, the stopper 13 is provided with two first connection holes 131 spaced apart from each other, and each first connection hole 131 is located between two adjacent anti-rotation holes 121. Accordingly, the anti-rotation member 12 is provided with two second connection holes 123 corresponding to the first connection holes 131, and two third connection holes 1111 corresponding to the first connection holes 131 are provided in the corresponding side panels 111. The number of the first connection holes 131, the second connection holes 123, and the third connection holes 1111 is not specifically limited.

[0057] In order to avoid the second bolt 16 interfering with other structures, in some embodiments, the end of the second bolt rod 161 of the second bolt 16 does not protrude from the second end face 113, that is, the end of the second bolt rod 161 is either located on the side of the second end face 113 away from the vehicle frame 3 or is flush with the second end face 113. In this way, the second bolt 16 can be prevented from interfering with other structures.

[0058] In some specific embodiments, the end of the second bolt rod 161 is arranged flush with the second end face 113.

[0059] Since the battery frame 1 needs to be provided with the connection holes (including the third connection hole 1111 and the connection hole through which the first bolt rod 22 passes) before being welded together with the frame body 14, the support 15, and the back plate 11, the connection hole through which the first bolt rod 22 passes may not be aligned with the mounting hole 31 on the vehicle frame 3 due to the hole opening error during the connection of the battery frame 1 and the vehicle frame 3.

[0060] That is, the first bolt 2 needs to have a certain amount of movement. Therefore, in some optional embodiments, the thickness of the anti-rotation piece 12 is greater than the axial dimension of the first bolt head 21. In this way, during the connection of the battery frame 1 and the vehicle frame 3, the first bolt 2 can move in the radial direction of the first bolt 2 to improve the connection efficiency between the battery frame 1 and the vehicle frame 3.

[0061] Specifically, the thickness of the anti-rotation piece 12 is greater than the axial dimension of the first bolt head 21 by 1 mm. Here, the size difference is not limited.

[0062] In order to facilitate the cooperation between the anti-rotation piece 12 and the first bolt head 21, in some embodiments, the anti-rotation hole 121 is clearance fit with the first bolt head 21.

[0063] Specifically, the distance between the hole wall of the anti-rotation hole 121 and the side wall of the corresponding first bolt head 21 is greater than or equal to 0.49 mm and less than or equal to 0.51 mm.

[0064] For example, the distance between the hole wall of the anti-rotation hole 121 and the side wall of the corresponding first bolt head 21 can be 0.49 mm, 0.50 mm, 0.51 mm, etc. Here, the distance between the hole wall of the anti-rotation hole 121 and the side wall of the corresponding first bolt head 21 is not limited.

[0065] The embodiment also provides a battery assembly, which comprises the battery frame 1 in the above embodiments and a plurality of battery packs 5 arranged in the battery frame 1. The arrangement of the battery packs 5 in the battery frame 1 has been described in detail in the above embodiments, and thus is not repeated here.

[0066] The battery assembly provided by the embodiment can improve the connection efficiency and reliability between the battery assembly and the vehicle frame 3 by using the battery frame 1.

[0067] The embodiment also provides a vehicle including the vehicle frame 3 and the battery assembly in the above embodiment. It should be noted that the battery assembly has been described in detail in the above embodiment, and thus is not described herein.

[0068] Further, the vehicle provided by the embodiment should also include other components or modules that can enable the vehicle to be normally used, and thus is not specifically limited herein.

[0069] The vehicle provided by the embodiment can improve the manufacturing efficiency of the vehicle provided by the embodiment and improve the use stability of the vehicle by using the battery assembly.

[0070] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered by the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A battery frame, used in a vehicle, characterized in that: The battery frame includes: a back plate, configured to be connected to a frame of the vehicle via a plurality of first bolts; an anti-rotation member disposed on a side of the back plate facing away from the frame, the anti-rotation member having an anti-rotation hole, a first bolt head of the first bolt being located in the anti-rotation hole, the shape of the anti-rotation hole being adapted to the shape of the first bolt head to prevent the first bolt from rotating; and A stopper is connected to the side of the anti-rotation member facing away from the back plate, the anti-rotation member has a first end face abutting against the stopper, and the orthographic projection area of ​​the stopper on the first end face covers the anti-rotation hole.

2. The battery frame according to claim 1, characterized in that The anti-rotation component is provided with a plurality of anti-rotation holes, and the plurality of anti-rotation holes are arranged in a one-to-one correspondence with at least part of the plurality of first bolts.

3. The battery frame according to claim 1, characterized in that The anti-rotation component and the stopper are both plate-shaped structures, and the contour shape of the stopper matches the contour shape of the anti-rotation component.

4. The battery frame according to claim 3, characterized in that The back plate has a second end surface arranged facing the frame; The anti-rotation member and the stop member are detachably connected to the back plate through a second bolt, and the end of the second bolt rod of the second bolt does not protrude from the second end surface.

5. The battery frame according to claim 3, characterized in that: The thickness of the anti-rotation component is greater than the axial dimension of the first bolt head.

6. The battery frame according to any one of claims 1 to 5, characterized in that: The anti-rotation hole is loosely matched with the first bolt head.

7. The battery frame according to claim 6, characterized in that The distance between the hole wall of the anti-rotation hole and the corresponding side wall of the first bolt head is greater than or equal to 0.49 mm and less than or equal to 0.51 mm.

8. The battery frame according to any one of claims 1 to 5 and 7, characterized in that: Also includes the frame body; The back plate includes a side plate and a bottom plate connected together, the side plate is connected to the side of the frame body, and the side plate is used to be connected to the frame through a plurality of the first bolts; The bottom plate is connected to the bottom of the frame body.

9. A battery assembly, characterized in that: The invention comprises a battery frame according to any one of claims 1 to 8 and a plurality of battery packs, wherein the plurality of battery packs are arranged in the battery frame.

10. A vehicle, characterized in that: The vehicle comprises a vehicle frame and the battery assembly according to claim 9.

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