Power battery frame middle longitudinal beam with connecting piece and commercial vehicle

Abstract

The utility model relates to a power battery frame middle longitudinal beam with a connecting piece and a commercial vehicle, and belongs to the technical field of power battery frames. The power battery frame middle longitudinal beam with the connecting pieces comprises a middle longitudinal beam body and connecting piece bodies, the connecting piece bodies are used for fixing the middle longitudinal beam body to an end beam of a power battery frame, and the two ends of each side of the middle longitudinal beam body are symmetrically connected with the connecting piece bodies through bolts. The contact face between the middle longitudinal beam body and the connecting piece body and the contact face between the connecting piece body and the end beam of the power battery frame are coated with structural adhesive.

Description

Technical Field

[0001] The present application relates to the technical field of power battery frames, and in particular to a longitudinal beam in a power battery frame with a connector and a commercial vehicle. Background Art

[0002] At present, the common electric commercial vehicle power battery frame on the market mostly uses welding to connect the ends of the longitudinal and transverse beams to the end beams around the frame. However, when the middle longitudinal beam is fixed to the surrounding frame by welding, the welding bonding strength is often insufficient, and the components are prone to welding deformation during the welding process. Due to the limited connection area of ​​the welding part, stress concentration is easy to occur when it is subjected to force. In addition, welding will cause the mechanical properties of the parent material to deteriorate, resulting in the risk of insufficient local strength. Therefore, it is necessary to improve the problem of insufficient structural strength caused by welding and fixing the middle longitudinal beam to the end beams around the battery frame. Summary of the invention

[0003] The embodiments of the present application provide a power battery frame middle longitudinal beam and a commercial vehicle with a connector to solve the problem of insufficient structural strength when the middle longitudinal beam is welded and fixed to the end beams around the battery frame in the related art.

[0004] In a first aspect, an embodiment of the present application provides a longitudinal beam in a power battery frame with a connector, comprising:

[0005] center longitudinal beam body;

[0006] A connector body, wherein the connector body is used to fix the middle longitudinal beam body to the end beam of the power battery frame, and the two ends of each side of the middle longitudinal beam body are symmetrically bolted with the connector body, and the contact surface between the middle longitudinal beam body and the connector body, and the contact surface between the connector body and the end beam of the power battery frame are coated with structural adhesive.

[0007] In some embodiments, the connector body includes a first fixing plate and a second fixing plate arranged along a first direction and perpendicular to the first fixing plate, and third fixing plates arranged along a second direction and perpendicular to the first fixing plate are arranged on both sides of the first fixing plate, the third fixing plate is connected to the second fixing plate, and the width of the third fixing plate increases from an end away from the second fixing plate to an end close to the second fixing plate.

[0008] In some embodiments, a first reinforcing plate is disposed at one end of the first fixing plate away from the second fixing plate, the first reinforcing plate is in a concave shape, and both ends of the first reinforcing plate are respectively connected to the two third fixing plates.

[0009] In some embodiments, bolt holes are provided on the first fixing plate, the second fixing plate and the third fixing plate;

[0010] Arc surfaces for transition are provided between the second fixing plate and each of the third fixing plates, and between the first reinforcing plate and each of the third fixing plates.

[0011] In some embodiments, a second reinforcement plate is vertically arranged along the first direction in the middle of the side wall of the first fixing plate, the height of the second reinforcement plate is higher than the lowest point of the side wall of the first reinforcement plate, and a plurality of first reinforcement ribs are vertically arranged between the first reinforcement plate and the second reinforcement plate.

[0012] In some embodiments, the width of the first reinforcing rib increases gradually from an end away from the second reinforcing plate toward an end close to the second reinforcing plate, and the side wall of the first reinforcing rib is arranged in an arc shape.

[0013] In some embodiments, a plurality of second reinforcing ribs are obliquely arranged between the second reinforcing plate and the second fixing plate, and a connection between the second reinforcing rib and the second reinforcing plate and a connection between the first reinforcing rib and the second reinforcing plate are located in the same horizontal plane.

[0014] In some embodiments, the second reinforcing ribs are in an arc-shaped structure, and there are four second reinforcing ribs. The two second reinforcing ribs located on the sides are inclined toward the directions of the two third fixing plates, and a triangular structure is formed between the two second reinforcing ribs located in the middle and the second reinforcing plates.

[0015] In some embodiments, the third fixing plate includes a first fixing surface and a second fixing surface connected to the first fixing surface, the first fixing surface and the second fixing surface are both arranged in an arc shape along a first direction, and the protruding directions of the first fixing surface and the second fixing surface are opposite;

[0016] The side wall of the third fixing plate includes a first side wall connected to the first fixing surface and a second side wall connected to the second fixing surface. The first side wall and the second side wall are both arranged in an arc shape along the second direction, and the protruding directions of the first side wall and the second side wall are opposite.

[0017] In a second aspect, an embodiment of the present application provides a commercial vehicle, comprising the above-mentioned longitudinal beam in the power battery frame with a connecting piece.

[0018] The beneficial effects of the technical solution provided by this application include:

[0019] An embodiment of the present application provides a middle longitudinal beam in a power battery frame with a connector and a commercial vehicle. The middle longitudinal beam in the power battery frame with a connector of the present application includes a middle longitudinal beam body and a connector body. The connector body is used to fix the middle longitudinal beam body to the end beam of the power battery frame, and the two ends of each side of the middle longitudinal beam body are symmetrically bolted with the connector body, and the contact surface between the middle longitudinal beam body and the connector body and the contact surface between the connector body and the end beam of the power battery frame are coated with structural adhesive.

[0020] In actual use, the middle longitudinal beam body is fixed to the end beams around the power battery frame using the connecting body, which can prevent local stress concentration and enhance the stability of the structure. This indirect fixing method using the connecting body avoids the problem of directly welding the middle longitudinal beam body to the end beams of the power battery frame, which leads to a decrease in the performance of the parent material. And the two ends of each side of the middle longitudinal beam body are symmetrically bolted with a connecting member body, that is, in actual circumstances, two connecting member bodies are arranged on each side of the middle longitudinal beam body, and the two connecting member bodies are respectively located at the front and rear ends of the middle longitudinal beam body. At this time, the middle longitudinal beam body is fixed to the end beam of the power battery frame by bolting the connecting member body, which can ensure the reliability of fixation and improve the structural strength and durability. In addition, the contact surface between the middle longitudinal beam body and the connecting member body, and the contact surface between the connecting member body and the end beam of the power battery frame are coated with structural adhesive. The provision of the structural adhesive, plus the bolting of the middle longitudinal beam body to the end beam of the power battery frame through the connecting member body, can ensure the reliable fixed connection between the middle longitudinal beam body and the end beam of the power battery frame, solve the micro-motion deformation of the connection between the middle longitudinal beam body and the end beam of the power battery frame during torsion and bending conditions and the micro-motion wear caused by the micro-motion deformation, thereby improving the connection reliability and structural strength of the components. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 It is a schematic diagram of the connection between the connecting member body and the middle longitudinal beam body;

[0023] Figure 2 for Figure 1 Schematic diagram of the structure of the connecting part body.

[0024] Reference numerals:

[0025] 1. Connector body; 2. Middle longitudinal beam body; 10. Arc surface; 11. First fixing plate; 12. Second fixing plate; 13. Third fixing plate; 14. First reinforcing plate; 15. Second reinforcing plate; 16. First reinforcing rib; 17. Second reinforcing rib; 131. First fixing surface; 132. Second fixing surface; 1311. First side wall; 1321. Second side wall. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0027] The embodiments of the present application provide a power battery frame middle longitudinal beam and a commercial vehicle with a connector, which can solve the problem of insufficient structural strength when the middle longitudinal beam is welded and fixed to the end beams around the battery frame in the related art.

[0028] See also Figure 1 As shown, on the one hand, an embodiment of the present application provides a middle longitudinal beam in a power battery frame with a connector, including a middle longitudinal beam body 2 and a connector body 1, the connector body 1 is used to fix the middle longitudinal beam body 2 to the end beam of the power battery frame, and both ends of each side of the middle longitudinal beam body 2 are symmetrically bolted with the connector body 1, and the contact surface between the middle longitudinal beam body 2 and the connector body 1, and the contact surface between the connector body 1 and the end beam of the power battery frame are coated with structural adhesive.

[0029] In actual use, the middle longitudinal beam body 2 is fixed to the end beams around the power battery frame using the connector body 1, which can prevent local stress concentration and enhance the stability of the structure. This indirect fixing method using the connector body 1 avoids the problem of directly welding the middle longitudinal beam body 2 to the end beams of the power battery frame, which leads to a decrease in the performance of the parent material. And the two ends of each side of the middle longitudinal beam body 2 are symmetrically bolted with a connecting member body 1, that is, in actual circumstances, two connecting member bodies 1 are provided on each side of the middle longitudinal beam body 2, and the two connecting member bodies 1 are respectively located at the front and rear ends of the middle longitudinal beam body 2. At this time, the middle longitudinal beam body 2 is bolted and fixed to the end beam of the power battery frame through the connecting member body 1, which can ensure the reliability of fixation and improve the structural strength and durability. In addition, the contact surface between the middle longitudinal beam body 2 and the connecting member body 1, and the contact surface between the connecting member body 1 and the end beam of the power battery frame are coated with structural adhesive. The provision of the structural adhesive, plus the bolting of the middle longitudinal beam body 2 to the end beam of the power battery frame through the connecting member body 1, can ensure the reliable fixed connection between the middle longitudinal beam body 2 and the end beam of the power battery frame, solve the micro-motion deformation of the connection between the middle longitudinal beam body 2 and the end beam of the power battery frame during torsion and bending conditions, and cause micro-motion wear, thereby improving the connection reliability and structural strength of the components.

[0030] During use, the center longitudinal beam body 2 and the connector body 1 are both made of aluminum alloy, and structural adhesives such as epoxy resin structural adhesive and acrylic structural adhesive can be used for bonding.

[0031] In some optional embodiments, such as Figure 1 and Figure 2 As shown, the connector body 1 includes a first fixing plate 11 and a second fixing plate 12 arranged along a first direction and perpendicular to the first fixing plate 11. Both sides of the first fixing plate 11 are provided with third fixing plates 13 arranged along a second direction and perpendicular to the first fixing plate 11. The third fixing plate 13 is connected to the second fixing plate 12, and the width of the third fixing plate 13 increases from an end away from the second fixing plate 12 to an end close to the second fixing plate 12.

[0032] In actual situations, the first direction is the direction of the Z axis, and the second direction is the direction of the X axis. The first fixed plate 11 is connected to the second fixed plate 12 through the third fixed plates 13 arranged on both sides thereof, and the entire structure forms a semi-enclosed structure. The first fixed plate 11 and the third fixed plate 13 are fixedly connected to the middle longitudinal beam body 2, and the second fixed plate 12 is fixedly connected to the end beam of the power battery frame, which can enhance the overall structural stability. And the width of the third fixed plate 13 increases from the end away from the second fixed plate 12 to the end close to the second fixed plate 12, that is, in actual use, the closer the third fixed plate 13 is to the end beam of the power battery frame, the greater its width is. In this way, the stress concentration problem at the connection between the middle longitudinal beam body 2 and the end beam of the power battery frame can be solved while saving its occupied space, thereby improving the strength and stability of the structure.

[0033] In some optional embodiments, such as Figure 2 As shown, a first reinforcing plate 14 is provided at one end of the first fixing plate 11 away from the second fixing plate 12. The first reinforcing plate 14 is in a "concave" shape, and the two ends of the first reinforcing plate 14 are respectively connected to the two third fixing plates 13. The first reinforcing plate 14 is in a "concave" shape to avoid occupying a large space, and the provision of the first reinforcing plate 14 can enhance the structural strength of the connector body 1, and prevent the connection between the middle longitudinal beam body 2 and the end beam of the power battery frame from twisting due to bumps and other reasons during the operation of the vehicle, resulting in a weakening of the structural strength of the connector body 1. The two ends of the first reinforcing plate 14 are respectively connected to the two third fixing plates 13, so that the connector body 1 as a whole is in a right-angled trapezoidal structure, which can ensure structural strength.

[0034] In some optional embodiments, such as Figure 1 and Figure 2 As shown, bolt holes are provided on the first fixing plate 11, the second fixing plate 12 and the third fixing plate 13; arc surfaces 10 for transition are provided between the second fixing plate 12 and each of the third fixing plates 13, and between the first reinforcing plate 14 and each of the third fixing plates 13. The second fixing plate 12 is bolted to the end beam of the power battery frame through the bolt holes provided thereon, and the first fixing plate 11 and the third fixing plate 13 are bolted to the middle longitudinal beam body 2 through the bolt holes provided thereon.

[0035] In addition, arc surfaces 10 for transition are provided between the second fixing plate 12 and each third fixing plate 13, and between the first reinforcement plate 14 and each third fixing plate 13. The provision of the arc surfaces 10 enables smooth transition at the connection points of each fixing plate, thereby improving structural stability and preventing scratches on other components during assembly.

[0036] In some optional embodiments, such as Figure 2As shown, a second reinforcing plate 15 is vertically arranged in the middle of the side wall of the first fixing plate 11 along the first direction, the height of the second reinforcing plate 15 is higher than the lowest point of the side wall of the first reinforcing plate 14, and a plurality of first reinforcing ribs 16 are vertically arranged between the first reinforcing plate 14 and the second reinforcing plate 15. The first direction is the direction of the Z axis, that is, the second reinforcing plate 15 is arranged along the direction of the Z axis, and the arrangement of the second reinforcing plate 15 can improve the strength of the structure and enhance its stability.

[0037] In addition, the height of the second reinforcing plate 15 is higher than the lowest point of the side wall of the first reinforcing plate 14, and a plurality of first reinforcing ribs 16 are vertically arranged between the first reinforcing plate 14 and the second reinforcing plate 15. Specifically, in some optional embodiments, the width of the first reinforcing rib 16 increases from the end away from the second reinforcing plate 15 to the end close to the second reinforcing plate 15, and the side wall of the first reinforcing rib 16 is arranged in an arc shape. The arrangement of the first reinforcing rib 16 can improve the strength of the structure, improve the stability of the connector body 1, and enhance its anti-vibration ability under the condition of vehicle bumps and shakes, thereby ensuring the reliability and stability of the connection between the middle longitudinal beam body 2 and the end beam of the power battery frame. In some actual use situations, the width of the first reinforcing rib 16 increases from the end away from the second reinforcing plate 15 to the end close to the second reinforcing plate 15, and the side wall of the first reinforcing rib 16 is arranged in an arc shape, which can ensure that the structural strength is improved without occupying too much space, and prevent the occurrence of unfavorable situations such as weakening of the connector strength and short service life caused by excessive concentration of local stress.

[0038] In some optional embodiments, such as Figure 2 As shown, a plurality of second reinforcing ribs 17 are obliquely arranged between the second reinforcing plate 15 and the second fixing plate 12, and the connection between the second reinforcing ribs 17 and the second reinforcing plate 15 and the connection between the first reinforcing ribs 16 and the second reinforcing plate 15 are located in the same horizontal plane. That is, the first reinforcing rib 16 is arranged at one end of the second reinforcing plate 15, the second reinforcing rib 17 is arranged at the other end of the second reinforcing plate 15, and the fixing points of the first reinforcing rib 16 and the second reinforcing rib 17 and the second reinforcing plate 15 are located at both ends of the same point on the second reinforcing plate 15, which can enhance the strength and stability of the structure.

[0039] Specifically, in some practical use situations, the second reinforcing ribs 17 are in an arc-shaped structure, and there are four second reinforcing ribs 17, the two second reinforcing ribs 17 located on the sides are tilted toward the direction where the two third fixing plates 13 are located, and a triangular structure is formed between the two second reinforcing ribs 17 located in the middle and the second reinforcing plate 15. The second reinforcing ribs 17 are in an arc-shaped structure, which can make them have a certain anti-vibration buffering ability, and the two second reinforcing ribs 17 located on the sides are tilted toward the direction where the two third fixing plates 13 are located, such as Figure 2The two second reinforcing ribs 17 on the sides form a triangular structure with the third fixing plate 13 and the second reinforcing plate 15, and the two second reinforcing ribs 17 in the middle form a triangular structure with the second reinforcing plate 15, which can improve the structural stability and strength and enhance the vibration resistance.

[0040] In some optional embodiments, such as Figure 2 As shown, the third fixing plate 13 includes a first fixing surface 131 and a second fixing surface 132 connected to the first fixing surface 131, the first fixing surface 131 and the second fixing surface 132 are both arranged in an arc shape along the first direction, and the protruding directions of the first fixing surface 131 and the second fixing surface 132 are opposite; the side wall of the third fixing plate 13 includes a first side wall 1311 connected to the first fixing surface 131 and a second side wall 1321 connected to the second fixing surface 132, the first side wall 1311 and the second side wall 1321 are both arranged in an arc shape along the second direction, and the protruding directions of the first side wall 1311 and the second side wall 1321 are opposite.

[0041] In actual use, the first fixed surface 131 and the second fixed surface 132 are both arranged in an arc shape along a first direction, and the first direction is the direction of the Z axis, that is, the first fixed surface 131 and the second fixed surface 132 are both arranged in an arc shape along the direction of the Z axis, and the protruding directions of the first fixed surface 131 and the second fixed surface 132 are opposite, so that the first fixed surface 131 and the second fixed surface 132 can form an undulating arc transition. This arrangement can make the connector body 1 have a certain buffering performance, and when the vehicle is bumpy and shaking, it can prevent local stress from being excessively concentrated, resulting in a weakening of the structural strength of the connector body 1. The first side wall 1311 and the second side wall 1321 are both arranged in an arc shape along the second direction, and the second direction is the direction of the X axis, that is, the first side wall 1311 and the second side wall 1321 are both arranged in an arc shape along the direction of the X axis, and the protruding directions of the first side wall 1311 and the second side wall 1321 are opposite. This arrangement makes the first side wall 1311 and the second side wall 1321 transition in an arc in the horizontal plane, and when the vehicle bumps and shakes, it can prevent the local stress from being too concentrated, resulting in the weakening of the structural strength of the connector body 1. Thereby ensuring the structural strength and stability of the connection between the middle longitudinal beam body 2 and the end beam of the power battery frame.

[0042] See also Figure 1 and Figure 2 As shown, on the other hand, the embodiment of the present application provides a commercial vehicle, including the above-mentioned power battery frame longitudinal beam with a connector. The commercial vehicle includes a power battery frame longitudinal beam with a connector, which can improve the strength and stability of the power battery frame structure in the commercial vehicle and improve product quality.

[0043] In the description of the present application, it should be noted that the terms "upper", "lower", etc. 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 application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0044] It should be noted that, in this application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0045] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. A longitudinal beam in a power battery frame with a connector, characterized in that: include: Center longitudinal beam body(2); A connector body (1), the connector body (1) is used to fix the middle longitudinal beam body (2) to the end beam of the power battery frame, and the two ends of each side of the middle longitudinal beam body (2) are symmetrically bolted to the connector body (1), and the contact surface between the middle longitudinal beam body (2) and the connector body (1) and the contact surface between the connector body (1) and the end beam of the power battery frame are coated with structural adhesive.

2. A longitudinal beam in a power battery frame with a connector as claimed in claim 1, characterized in that: The connector body (1) comprises a first fixing plate (11) and a second fixing plate (12) arranged along a first direction and perpendicular to the first fixing plate (11); third fixing plates (13) arranged along a second direction and perpendicular to the first fixing plate (11) are arranged on both sides of the first fixing plate (11); the third fixing plate (13) is connected to the second fixing plate (12), and the width of the third fixing plate (13) increases gradually from an end away from the second fixing plate (12) to an end close to the second fixing plate (12).

3. A longitudinal beam in a power battery frame with a connector as claimed in claim 2, characterized in that: A first reinforcing plate (14) is provided at one end of the first fixing plate (11) away from the second fixing plate (12); the first reinforcing plate (14) is in a concave shape, and both ends of the first reinforcing plate (14) are respectively connected to the two third fixing plates (13).

4. A longitudinal beam in a power battery frame with a connector as claimed in claim 3, characterized in that: Bolt holes are provided on the first fixing plate (11), the second fixing plate (12) and the third fixing plate (13); Arc surfaces (10) for transition are provided between the second fixing plate (12) and each of the third fixing plates (13), and between the first reinforcing plate (14) and each of the third fixing plates (13).

5. A longitudinal beam in a power battery frame with a connector as claimed in claim 3, characterized in that: A second reinforcing plate (15) is vertically arranged along a first direction in the middle of the side wall of the first fixing plate (11); the height of the second reinforcing plate (15) is higher than the lowest point of the side wall of the first reinforcing plate (14); and a plurality of first reinforcing ribs (16) are vertically arranged between the first reinforcing plate (14) and the second reinforcing plate (15).

6. A longitudinal beam in a power battery frame with a connector as claimed in claim 5, characterized in that: The width of the first reinforcing rib (16) increases gradually from an end away from the second reinforcing plate (15) toward an end close to the second reinforcing plate (15), and the side wall of the first reinforcing rib (16) is arranged in an arc shape.

7. A longitudinal beam in a power battery frame with a connector as claimed in claim 5, characterized in that: A plurality of second reinforcing ribs (17) are obliquely arranged between the second reinforcing plate (15) and the second fixing plate (12), and the connection between the second reinforcing ribs (17) and the second reinforcing plate (15) and the connection between the first reinforcing ribs (16) and the second reinforcing plate (15) are located in the same horizontal plane.

8. A longitudinal beam in a power battery frame with a connector as claimed in claim 7, characterized in that: The second reinforcing ribs (17) are of an arc-shaped structure, and four second reinforcing ribs (17) are provided, the two second reinforcing ribs (17) located at the sides are inclined toward the direction of the two third fixing plates (13), and a triangular structure is formed between the two second reinforcing ribs (17) located in the middle and the second reinforcing plate (15).

9. A longitudinal beam in a power battery frame with a connector as claimed in claim 2, characterized in that: The third fixing plate (13) comprises a first fixing surface (131) and a second fixing surface (132) connected to the first fixing surface (131), the first fixing surface (131) and the second fixing surface (132) are both arranged in an arc shape along a first direction, and the protruding directions of the first fixing surface (131) and the second fixing surface (132) are opposite; The side wall of the third fixing plate (13) comprises a first side wall (1311) connected to the first fixing surface (131) and a second side wall (1321) connected to the second fixing surface (132); the first side wall (1311) and the second side wall (1321) are both arranged in an arc shape along a second direction, and the protruding directions of the first side wall (1311) and the second side wall (1321) are opposite.

10. A commercial vehicle, characterized in that: A longitudinal beam in a power battery frame with a connecting piece as described in any one of claims 1 to 9.

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