CN221457804U - Vehicle seat crossbar, vehicle - Google Patents

Abstract

The utility model discloses a vehicle seat cross beam and a vehicle. The vehicle seat beam comprises a beam body and a composite reinforcement, wherein the beam body is provided with a containing cavity, and the composite reinforcement is arranged in the containing cavity. The utility model is provided with a reinforced novel structure for the abrupt change area of the vehicle seat beam, and the structure is suitable for the reinforcement of the variable-section and small-section cavity, and not only has the capability of absorbing side collision, but also has the capability of resisting column collision.

Description

Vehicle seat crossbar, vehicle

Technical Field

The utility model generally relates to the technical field of vehicle body structures, and more specifically to a vehicle seat crossbeam and a vehicle.

Background technique

In existing automobiles, the front floor assembly is a very important component of the lower part of the vehicle body, carrying the front seats and other important components. Two seat crossbeams are usually provided in the front floor assembly for installing and fixing the seats. The seat crossbeam is an important force transmission path when the vehicle is hit by a side collision (see Figure 2). Due to reasons such as pipeline layout, a protrusion (mutation area) is often formed in the middle of the front floor to avoid high-voltage wiring harnesses and cooling pipes. Since the seat crossbeam spans the front floor, a protrusion (mutation area) is also provided correspondingly, resulting in a shape mutation area of the seat crossbeam. During a side collision, the protrusion of the seat crossbeam becomes unstable and folds, resulting in excessive intrusion, thereby affecting the safety of people in the cab.

The common structure of the front floor assembly 100 is shown in FIG1 and FIG3, including the front floor body 101, the left door sill 102, the right door sill 103, the first crossbeam 104, and the second crossbeam 105. Due to the arrangement of pipelines in the central channel area, the shapes of the front floor body 101, the first crossbeam 104, and the second crossbeam 105 suddenly change to avoid the surrounding parts. In order to ensure the side collision performance and the strength of the seat installation point area, as shown in FIG3, an upper reinforcement plate 106 is added to the inner side of the first crossbeam 104, a first lower reinforcement plate 107 is added below, and a second lower reinforcement plate 108 is added below the second crossbeam 105 to improve the resistance of the weak area. This reinforcement method can only achieve cross-sectional rigidity and strength by increasing the thickness of the patch sheet and improving the grade of the sheet. The reinforcement effect is poor, and the weight of the sheet metal is heavy, which is not conducive to lightweight design. At the same time, it needs to be connected to the seat crossbeam through more than a dozen welding points, which affects production efficiency.

Therefore, it is necessary to provide a front floor assembly and a vehicle to at least partially solve the above problems.

Utility Model Content

A series of simplified concepts are introduced in the utility model content section, which will be further described in detail in the detailed implementation section. The utility model content section of the utility model does not mean to attempt to define the key features and essential technical features of the technical solution claimed for protection, nor does it mean to attempt to determine the scope of protection of the technical solution claimed for protection.

In order to at least partially solve the above problems, the first aspect of the present invention provides a vehicle seat cross beam, comprising:

A crossbeam body, wherein the crossbeam body is provided with a receiving cavity;

A composite reinforcement member, wherein the composite reinforcement member is arranged in the accommodating cavity.

Optionally, a metal piece is further included, wherein the metal piece is arranged between the composite reinforcement and the inner wall of the beam body, and the metal piece is fixedly connected to the beam body.

Optionally, the vehicle seat cross beam is a seat front cross beam, and the metal part is arranged in a region of the cross beam body corresponding to a central channel of the vehicle.

Optionally, a glue pouring groove is provided between the composite reinforcement and the crossbeam body, and the glue pouring groove is used for pouring foam glue.

Optionally, the metal piece is an L-shaped metal piece, one end of the L-shaped metal piece is welded to the beam body, and the other end of the L-shaped metal piece is connected to the composite reinforcement.

Optionally, a plurality of reinforcing ribs are provided on the surface of the composite reinforcement, and the reinforcing ribs are used to extend into the interior of the foamed rubber.

Optionally, the composite reinforcement is provided with a process hole corresponding to the metal part, and the process hole is used for inserting a welding gun to weld the metal part and the beam body.

Optionally, positioning holes are provided at both ends and/or the middle of the composite reinforcement, and the positioning holes are used for positioning the composite reinforcement when it is placed in the accommodating cavity.

Optionally, the outer shape of the composite reinforcement is adapted to the inner shape of the accommodating cavity.

A second aspect of the utility model provides a vehicle, comprising a vehicle seat cross beam according to any one of the above technical solutions.

According to a vehicle seat crossbeam and a vehicle of the utility model, a composite reinforcement is provided in response to the sudden change area of the vehicle seat crossbeam. The composite reinforcement is suitable for the reinforcement of variable-section and small-section cavities, and not only has the ability to absorb side collisions, but also has the ability to resist pillar collisions. It makes a high contribution to the safety of the entire vehicle structure, provides a higher safety guarantee for passengers in the cabin, and can effectively reduce the amount of intrusion into the cabin and improve the safety of battery cells.

BRIEF DESCRIPTION OF THE DRAWINGS

The following drawings of the embodiments of the present invention are used as part of the present invention for understanding the present invention. The drawings show the embodiments of the present invention and their descriptions, and are used to explain the principles of the present invention. In the drawings,

FIG1 is a top view of a front floor assembly in the prior art;

FIG2 is a schematic diagram of a force transmission path when a front floor assembly is hit in the prior art;

Fig. 3 is a cross-sectional view along line A-A in Fig. 1;

FIG4 is a top view of a front floor assembly according to a preferred embodiment of the present invention;

Fig. 5 is a cross-sectional view along line B-B in Fig. 4;

FIG6 is a top view of a first crossbeam according to a preferred embodiment of the present invention;

Fig. 7 is a cross-sectional view along D-D in Fig. 6;

FIG8 is an exploded view of a first crossbeam according to a preferred embodiment of the present invention;

FIG9 is a perspective view of a composite reinforcement according to a preferred embodiment of the present invention;

FIG10 is a top view of a composite reinforcement according to a preferred embodiment of the present invention;

FIG11 is a bottom view of a composite reinforcement according to a preferred embodiment of the present invention;

FIG12 is a top view of a second crossbeam according to a preferred embodiment of the present invention;

Fig. 13 is a cross-sectional view along line C-C in Fig. 12;

FIG14 is an exploded view of a second crossbeam according to a preferred embodiment of the present invention;

FIG15 is a perspective view of a composite reinforcement according to a preferred embodiment of the present invention;

FIG16 is a top view of a composite reinforcement according to a preferred embodiment of the present invention;

FIG. 17 is a bottom view of a composite reinforcement according to a preferred embodiment of the present invention.

Description of reference numerals:

100: Front floor assembly 101: Front floor body

1011: Mutation area 102: Left threshold

103: Right door sill 104: First crossbeam

105: Second crossbeam 106: Upper reinforcement plate

107: First lower reinforcement plate 108: Second lower reinforcement plate

200: Front floor assembly 201: Front floor body

2011: Mutation area 202: Left threshold

203: Right door sill 204: First crossbeam

2041: Accommodation cavity 2042: Beam body

205: Second beam 2051: Accommodation cavity

2052: beam body 206: first reinforcement module

2061: Composite reinforcement 20611: First receiving groove

20612: Reinforcement rib 20613: Process hole

20614: Positioning hole 20615: Second receiving groove

20616: Third receiving tank 2062: Foaming glue

2063: Metal parts 207: Second reinforcement module

2071: Composite reinforcement 20711: First receiving groove

20712: Reinforcement rib 20713: Process hole

20714: Positioning hole 20715: Second receiving groove

20716: Third receiving tank 2072: Foaming glue

2073: Metal parts

Detailed ways

In the following description, a large number of specific details are given to provide a more thorough understanding of the utility model. However, it is obvious to those skilled in the art that the utility model can be implemented without one or more of these details. In other examples, in order to avoid confusion with the utility model, some technical features known in the art are not described.

In order to thoroughly understand the utility model, a detailed description will be provided in the following description. It should be understood that these embodiments are provided to make the disclosure of the utility model thorough and complete, and to fully convey the concepts of these exemplary embodiments to those of ordinary skill in the art. Obviously, the implementation of the embodiments of the utility model is not limited to the specific details familiar to those skilled in the art. The preferred embodiments of the utility model are described in detail below, but in addition to these detailed descriptions, the utility model may also have other embodiments.

Ordinal numbers such as "first" and "second" cited in the present invention are merely identifiers and do not have any other meanings, such as a specific order, etc. Moreover, for example, the term "first component" itself does not imply the existence of the "second component", and the term "second component" itself does not imply the existence of the "first component".

It should be noted that the terms "upper", "lower", "front", "back", "left", "right", "inside", "outside" and similar expressions used in the present invention are for illustrative purposes only and are not restrictive.

The utility model discloses a vehicle seat crossbeam and a vehicle.

Now, exemplary embodiments according to the present invention will be described in more detail with reference to the accompanying drawings.

As shown in Figures 4 and 5, the front floor assembly 200 includes a front floor body 201 and a vehicle seat cross beam. The vehicle seat cross beam is fixed to the top of the front floor body 201 for installing a fixed seat. The vehicle seat cross beam includes two cross beams arranged on the top of the front floor body 201, namely a first cross beam 204 and a second cross beam 205. The two cross beams are used to install a fixed seat at the same time.

In one embodiment, a vehicle seat cross beam comprises: a cross beam body and a composite reinforcement;

The beam body is provided with a receiving cavity; the receiving cavity protrudes from other areas of the beam body, and the receiving cavity is the area of sudden shape change;

The composite reinforcement is arranged in the accommodating cavity; the composite reinforcement is more easily adapted to the accommodating cavity.

The material of the composite reinforcement can be a composite material, such as (PA66+GF40). Compared with the traditional steel plate reinforcement, the material density of the composite material is much smaller than that of the steel plate. This reinforcement method is more conducive to lightweight design.

Steel sheet stamping parts can currently only achieve equal thickness stamping, and local reinforcement is limited. The strength and rigidity can only be increased by increasing the material thickness and grade. Composite material reinforcement parts can achieve complex shapes and unequal thickness through injection molding process, which has obvious effects on filling cavities and improving the stiffness and resistance of the seat beam section.

The vehicle seat crossbeam in this embodiment should be provided with a composite reinforcement in the mutation area of the seat crossbeam. The composite reinforcement is suitable for the reinforcement of variable-section and small-section cavities. It not only has the ability to absorb side collisions, but also has the ability to resist pillar collisions. It makes a high contribution to the safety of the entire vehicle structure, provides higher safety protection for passengers in the cabin, and can effectively reduce the amount of intrusion into the cabin and improve the safety of battery cells.

In one embodiment, the vehicle seat cross beam is a front cross beam of the seat, which is used to install and fix the front seat, and the base of the front seat is fixedly connected to the first cross beam 204 and the second cross beam 205 .

The structures of the first crossbeam 204 and the second crossbeam 205 are similar and will be described in detail below.

In one embodiment, as shown in FIG. 6 , FIG. 7 , and FIG. 8 , the first beam 204 includes: a beam body 2042 and a composite reinforcement 2061 ;

The middle part of the beam body 2042 is provided with a receiving cavity 2041, which protrudes from other areas of the beam body 2042, and the receiving cavity 2041 is a shape mutation area;

The composite reinforcement 2061 is disposed inside the accommodating cavity 2041 , and the composite reinforcement 2061 is more easily adapted to the accommodating cavity 2041 .

In one embodiment, the first beam 204 further includes:

The metal piece 2063 is disposed between the composite reinforcement piece 2061 and the inner wall of the crossbeam body 2042 , and the metal piece 2063 is fixedly connected to the crossbeam body 2042 .

The metal part 2063 is specifically disposed in the area of the cross beam body 2042 corresponding to the central channel of the vehicle.

The metal piece 2063 is an L-shaped metal piece, one end of which is welded to the beam body 2042 , and the other end of which is connected to the composite reinforcement piece 2061 .

In one embodiment, the first beam 204 further includes:

Foam glue 2062, the foam glue 2062 is made of foam material, and a glue pouring groove is provided between the composite reinforcement 2061 and the beam body 2042, and the glue pouring groove is used to pour the foam glue 2062;

The glue pouring groove may be a receiving groove arranged on the surface of the composite reinforcement 2061 , and is used to receive and limit the foam glue 2062 .

The composite reinforcement member 2061 , the metal member 2063 , and the foam glue 2062 together constitute the first reinforcement module 206 .

After the foam glue 2062 is injected into the receiving groove, when the front floor assembly 200 is baked by electrophoresis, the foam glue 2062 is heated and expanded, which fills the gap between the composite reinforcement 2061 and the beam body 2042 and the front floor body 201 on the one hand, and tightly connects the composite reinforcement 2061 and the beam body 2042 and the front floor body 201 on the other hand. After the foam glue 2062 solidifies, it forms a fixed structural part, so that the stiffness and resistance of the sudden change area of the seat beam shape are improved.

The material of foam glue 2062 can be foamed epoxy resin, which is a high molecular polymer and a thermosetting resin with good bonding strength and chemical resistance.

In one embodiment, as shown in FIG. 9 and FIG. 10 , the receiving tank includes:

The first receiving groove 20611 is arranged along the length direction of the composite reinforcement 2061 and extends from the top of the composite reinforcement 2061 to one side of the width direction of the composite reinforcement 2061;

The second receiving groove 20615 is arranged along the length direction of the composite reinforcement 2061 , and extends from the top of the composite reinforcement 2061 to the other side of the composite reinforcement 2061 in the width direction.

The foam glue 2062 injected into the first receiving groove 20611 and the second receiving groove 20615 is foamed and expanded to connect the composite reinforcement 2061 and the beam body 2042.

If too much foam glue 2062 is not needed on the surface of the composite reinforcement 2061, a row of process grooves can be set in the middle of the composite reinforcement 2061, and the first accommodating groove 20611 and the second accommodating groove 20615 are separated at the top, thereby reducing the area of the accommodating groove, thereby appropriately reducing the area for setting the foam glue 2062.

In one embodiment, as shown in FIG11 , the receiving tank further comprises:

The third receiving groove 20616 is arranged along the length direction of the composite reinforcement 2061 and is located on the lower surface of the composite reinforcement 2061;

The foam glue 2062 injected into the third receiving groove 20616 is foamed and expanded to connect the composite reinforcement 2061 and the front floor body 201 .

According to product design requirements, the depth of the first receiving groove 20611, the second receiving groove 20615, and the third receiving groove 20616 can be selected to be 2-4 mm.

The walls of the first accommodating groove 20611, the second accommodating groove 20615, and the third accommodating groove 20616 can limit the foaming and expansion direction of the foam glue 2062, prevent the foam glue 2062 from expanding randomly during foaming, and avoid blocking the installation point of the first beam 204 and affecting subsequent installation.

In one embodiment, as shown in FIG. 9 , a plurality of reinforcing ribs 20612 are disposed in the receiving groove, and the reinforcing ribs 20612 protrude from the bottom of the receiving groove, thereby extending into the interior of the foam glue 2062 .

The reinforcing ribs 20612 can not only strengthen the structure of the composite reinforcement 2061 , but also strengthen the connection structure between the composite reinforcement 2061 and the foam 2062 .

In one embodiment, as shown in FIG. 9 , a metal member 2063 is disposed on top of the composite reinforcement 2061 . The metal member 2063 is L-shaped. When the composite reinforcement 2061 is injection molded, one end of the metal member 2063 is simultaneously injection molded and fixed on the top of the composite reinforcement 2061 .

The metal part 2063 is a sheet metal part and can be made by stamping metal materials.

In one embodiment, the metal member 2063 is welded and fixed to the beam body 2042 , so that the composite reinforcement member 2061 is pre-fixed inside the accommodating cavity 2041 .

Two metal parts 2063 can be set on the top of the composite reinforcement 2061. This connection method only relies on two welding points for pre-fixation, which greatly reduces the number of welding points compared to traditional sheet metal reinforcement, improves production efficiency, and reduces welding costs.

By welding and fixing the metal piece 2063 to the beam body 2042 , the first reinforcing module 206 can be fixed as a whole to the interior of the accommodating cavity 2041 , and then enter the oven along with the front floor assembly 200 , so that the foam glue 2062 completes foaming and expansion.

In one embodiment, as shown in FIGS. 9 and 10 , the composite reinforcement 2061 is provided with a process hole 20613 corresponding to the metal part 2063 , and the process hole 20613 is used for inserting a welding gun during welding to weld the metal part 2063 and the beam body 2042 .

The area of the process hole 20613 should be larger than the area of the metal part 2063 to facilitate welding, and the shape can be designed to be circular or rectangular.

In one embodiment, as shown in FIG. 10 , positioning holes 20614 are provided at both ends and/or the middle of the composite reinforcement 2061 , and the positioning holes 20614 are used for positioning the composite reinforcement 2061 when it is placed in the accommodating cavity 2041 .

A positioning column is provided inside the accommodating cavity 2041 corresponding to the positioning hole 20614 , and the positioning column is inserted into the positioning hole 20614 to achieve positioning.

In one embodiment, as shown in FIG. 9 , FIG. 10 , and FIG. 11 , the outer shape of the composite reinforcement 2061 is adapted to the inner shape of the accommodating cavity 2041 , which is a conformal design.

Before the foaming glue 2062 completes foaming and expansion, there is a gap between the composite reinforcement 2061 and the inner surface of the accommodating cavity 2041 and the surface of the front floor body 201, and the thickness of the gap can be selected to be 2-4 mm. After the foaming glue 2062 completes foaming and expansion, the gap is filled.

The manufacturing method of the first cross beam 204 is described as follows:

When the composite material reinforcement 2061 is injection molded, two L-shaped metal pieces 2063 are embedded in the composite material, and then the foamed epoxy resin following the profile of the first cross beam is injected into the receiving groove reserved in advance of the composite reinforcement 2061, and after solidification, the foamed glue 2062 is formed, and finally the two L-shaped metal pieces 2063 are connected to the first cross beam 204 by spot welding. After the front floor assembly 200 is baked by electrophoresis, the foamed epoxy resin following the profile of the first cross beam is perfectly connected to the circumference of the first cross beam 204, filling the cross section mutation area of the first cross beam 204, so that the stiffness and resistance of the cross section mutation area of the first cross beam 204 are improved.

In one embodiment, as shown in FIG. 12 , FIG. 13 , and FIG. 14 , the second cross beam 205 includes: a cross beam body 2052 and a composite reinforcement 2071 ;

The middle part of the beam body 2052 is provided with a receiving cavity 2051, which protrudes from other areas of the beam body 2052, and the receiving cavity 2051 is a shape mutation area;

The composite reinforcement 2071 is disposed inside the accommodating cavity 2051 , and the composite reinforcement 2071 is more easily adapted to the accommodating cavity 2051 .

In one embodiment, the second beam 205 further includes:

The metal piece 2073 is disposed between the composite reinforcement piece 2071 and the inner wall of the crossbeam body 2052 , and the metal piece 2073 is fixedly connected to the crossbeam body 2052 .

The metal part 2073 is specifically arranged in the area of the cross beam body 2052 corresponding to the central channel of the vehicle.

The metal piece 2073 is an L-shaped metal piece, one end of which is welded to the beam body 2052 , and the other end of which is connected to the composite reinforcement piece 2071 .

In one embodiment, the second beam 205 further includes:

Foam glue 2072, the foam glue 2072 is made of foam material, and a glue pouring groove is provided between the composite reinforcement 2071 and the beam body 2052, and the glue pouring groove is used to pour the foam glue 2072;

The glue pouring groove may be a receiving groove arranged on the surface of the composite reinforcement 2071 , and is used to receive and limit the foam glue 2072 .

The composite reinforcement member 2071 , the metal member 2073 , and the foam glue 2072 together constitute the second reinforcement module 207 .

After the foam glue 2072 is injected into the receiving groove, when the front floor assembly 200 is baked by electrophoresis, the foam glue 2072 is heated and expanded, which fills the gap between the composite reinforcement 2071 and the beam body 2052 and the front floor body 201 on the one hand, and tightly connects the composite reinforcement 2071 and the beam body 2052 and the front floor body 201 on the other hand. After the foam glue 2072 solidifies, it forms a fixed structural part, so that the stiffness and resistance of the sudden change area of the seat beam shape are improved.

The material of foam glue 2072 can be foamed epoxy resin, which is a high molecular polymer and a thermosetting resin with good bonding strength and chemical resistance.

In one embodiment, as shown in FIG. 15 and FIG. 16 , the receiving tank includes:

The first receiving groove 20711 is arranged along the length direction of the composite reinforcement 2071 and extends from the top of the composite reinforcement 2071 to one side of the width direction of the composite reinforcement 2071;

The second receiving groove 20715 is arranged along the length direction of the composite reinforcement 2071 , and extends from the top of the composite reinforcement 2071 to the other side of the composite reinforcement 2071 in the width direction.

The foam glue 2072 injected into the first receiving groove 20711 and the second receiving groove 20715 is foamed and expanded to connect the composite reinforcement 2071 and the beam body 2052.

If too much foam glue 2072 is not needed on the surface of the composite reinforcement 2071, a row of process grooves can be set in the middle of the composite reinforcement 2071, and the first accommodating groove 20711 and the second accommodating groove 20715 are separated at the top, thereby reducing the area of the accommodating groove, thereby appropriately reducing the area for setting the foam glue 2072.

In one embodiment, as shown in FIG17 , the receiving tank further comprises:

The third receiving groove 20716 is arranged along the length direction of the composite reinforcement 2071 and is located on the lower surface of the composite reinforcement 2071;

The foam glue 2072 injected into the third receiving groove 20716 is foamed and expanded to connect the composite reinforcement 2071 and the front floor body 201 .

According to product design requirements, the depth of the first receiving groove 20711, the second receiving groove 20715, and the third receiving groove 20716 can be selected to be 2-4 mm.

The walls of the first accommodating groove 20711, the second accommodating groove 20715, and the third accommodating groove 20716 can limit the foaming and expansion direction of the foam glue 2072, prevent the foam glue 2072 from expanding randomly during foaming, and avoid blocking the installation point of the second beam 205 and affecting subsequent installation.

In one embodiment, as shown in FIG. 15 , a plurality of reinforcing ribs 20712 are disposed in the receiving groove, and the reinforcing ribs 20712 protrude from the bottom of the receiving groove, thereby extending into the interior of the foam glue 2072 .

The reinforcing ribs 20712 can not only strengthen the structure of the composite reinforcement 2071 , but also strengthen the connection structure between the composite reinforcement 2071 and the foam 2072 .

In one embodiment, as shown in FIG. 15 , a metal member 2073 is disposed on top of the composite reinforcement 2071 . The metal member 2073 is L-shaped. When the composite reinforcement 2071 is injection molded, one end of the metal member 2073 is simultaneously injection molded and fixed on the top of the composite reinforcement 2071 .

The metal part 2073 is a sheet metal part and can be made by stamping metal materials.

In one embodiment, the metal member 2073 is welded and fixed to the beam body 2052 , so that the composite reinforcement member 2071 is pre-fixed inside the accommodating cavity 2051 .

Two metal parts 2073 can be set on the top of the composite reinforcement 2071. This connection method only relies on two welding points for pre-fixation, which greatly reduces the number of welding points compared to traditional sheet metal reinforcement, improves production efficiency, and reduces welding costs.

By welding and fixing the metal piece 2073 to the beam body 2052 , the second reinforcement module 207 can be fixed as a whole to the interior of the accommodating cavity 2051 , and then enter the oven along with the front floor assembly 200 , so that the foam glue 2072 completes foaming and expansion.

In one embodiment, as shown in FIGS. 15 and 16 , the composite reinforcement 2071 is provided with a process hole 20713 corresponding to the metal part 2073 , and the process hole 20713 is used for inserting a welding gun during welding to weld the metal part 2073 and the beam body 2052 .

The area of the process hole 20713 should be larger than the area of the metal part 2073 to facilitate welding, and the shape can be designed to be circular or rectangular.

In one embodiment, as shown in FIG. 15 , positioning holes 20714 are provided at both ends and/or the middle of the composite reinforcement 2071 , and the positioning holes 20714 are used for positioning the composite reinforcement 2071 when it is placed in the accommodating cavity 2051 .

A positioning column is provided inside the accommodating cavity 2051 corresponding to the positioning hole 20714 , and the positioning column is inserted into the positioning hole 20714 to achieve positioning.

In one embodiment, as shown in FIG. 15 , FIG. 16 , and FIG. 17 , the outer shape of the composite reinforcement 2071 is adapted to the inner shape of the accommodating cavity 2051 , which is a conformal design.

Before the foam glue 2072 completes foaming and expansion, there is a gap between the composite reinforcement 2071 and the inner surface of the accommodating cavity 2051 and the surface of the front floor body 201, and the thickness of the gap can be selected to be 2-4 mm. After the foam glue 2072 completes foaming and expansion, the gap is filled.

The manufacturing method of the second cross beam 205 is described as follows:

When the composite material reinforcement 2071 is injection molded, two L-shaped metal pieces 2073 are embedded in the composite material, and then the foamed epoxy resin following the profile of the first cross beam is injected into the receiving groove reserved in advance of the composite reinforcement 2071, and after solidification, the foamed glue 2072 is formed, and finally the two L-shaped metal pieces 2073 are connected to the second cross beam 205 by spot welding. After the front floor assembly 200 is baked by electrophoresis, the foamed epoxy resin following the profile of the first cross beam is perfectly connected to the circumference of the second cross beam 205, filling the cross section mutation area of the second cross beam 205, so that the stiffness and resistance of the cross section mutation area of the second cross beam 205 are improved.

An embodiment of the present invention further provides a vehicle, comprising the vehicle seat cross beam according to any one of the above embodiments, wherein the vehicle seat cross beam is disposed in the front floor assembly 200 .

According to a vehicle seat crossbeam and a vehicle of the utility model, the weak force transmission area of the vehicle seat crossbeam is optimized, which can effectively avoid the occurrence of damage to people in the cabin caused by the instability of the weak force transmission area of the vehicle seat crossbeam during side collision and pillar collision. In the event of a collision, the intrusion amount into the cockpit space is small; and the intrusion amount of the battery cell is guaranteed, thereby ensuring the safety of the battery and reducing the damage to the battery pack when the body frame is deformed; from the perspective of lightweight, the use of composite materials instead of sheet metal parts reduces the weight of parts; the use of foamed epoxy resin to connect with sheet metal parts reduces welding points, which not only improves the production cycle, but also reduces welding costs; finally, from the performance aspect of the component cross section, it is significantly better than ordinary sheet metal parts.

The processes and steps described in all the above preferred embodiments are only examples. Unless adverse effects occur, various processing operations can be performed in a sequence different from the sequence of the above processes. The sequence of steps in the above processes can also be increased, merged or deleted according to actual needs.

In understanding the scope of the present invention, the term "comprising" and its derivatives as used herein are intended to be open terms, which specify the existence of the recorded features, elements, components, groups, wholes and/or steps, but do not exclude the existence of other unrecorded features, elements, components, groups, wholes and/or steps. This concept also applies to words with similar meanings, such as the terms "including", "having" and their derivatives.

The terms "attached" or "attached" as used herein include: a configuration where an element is directly secured to another element by being directly secured to the other element; a configuration where an element is indirectly secured to another element by being secured to an intermediate member which in turn is secured to the other element; and a configuration where one element is integral with another element, i.e., one element is substantially a part of the other element. This definition also applies to words with similar meanings such as "connect," "connect," "couple," "mount," "bond," "fix," and their derivatives. Finally, terms of degree such as "substantially," "approximately," and "approximately" as used herein represent the amount of deviation that modifies the term such that the end result will not be significantly changed.

Unless otherwise defined, the technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art of the present invention. The terms used herein are only for describing specific implementation purposes and are not intended to limit the present invention. The features described herein in one embodiment may be applied to another embodiment alone or in combination with other features, unless the feature is not applicable or otherwise specified in the other embodiment.

The present invention has been described through the above embodiments, but it should be understood that the above embodiments are only for the purpose of example and description, and are not intended to limit the present invention to the described embodiments. In addition, it can be understood by those skilled in the art that the present invention is not limited to the above embodiments, and more variations and modifications can be made according to the teachings of the present invention, and these variations and modifications all fall within the scope of the protection claimed by the present invention.

Claims (8)

1. A vehicle seat cross member, comprising:

The beam body is provided with a containing cavity;

A composite reinforcement disposed within the receiving cavity;

A glue pouring groove is arranged between the composite material reinforcement and the beam body and is used for pouring foaming glue;

The surface of the composite material reinforcing piece is provided with a plurality of reinforcing ribs, and the reinforcing ribs are used for extending into the foaming adhesive.

2. The vehicle seat cross beam of claim 1, further comprising a metal piece disposed between the composite reinforcement and the cross beam body inner wall, the metal piece being fixedly connected to the cross beam body.

3. The vehicle seat cross beam of claim 2, wherein the vehicle seat cross beam is a seat front cross beam and the metal piece is disposed in an area of the cross beam body corresponding to a vehicle center tunnel.

4. The vehicle seat cross beam of claim 2, wherein the metal piece is an L-shaped metal piece, one end of the L-shaped metal piece is welded to the cross beam body, and the other end of the L-shaped metal piece is connected to the composite reinforcement.

5. The vehicle seat cross beam of claim 2, wherein the composite reinforcement is provided with a tooling hole corresponding to the metal piece for a welding gun to extend into to weld the metal piece with the cross beam body.

6. The vehicle seat cross beam according to claim 1, characterized in that both ends and/or a middle part of the composite reinforcement are provided with positioning holes for positioning when the composite reinforcement is placed inside the accommodation chamber.

7. The vehicle seat cross member according to claim 1, wherein the profile of the composite reinforcement member is adapted to the internal shape of the receiving cavity.

8. A vehicle comprising a vehicle seat cross member according to any one of claims 1-7.