Instrument board cross beam and vehicle

Abstract

The utility model provides an instrument panel cross beam and a vehicle, and belongs to the technical field of instrument panel assemblies, a cross beam main pipe and a rotating pipe connecting piece are both made of light alloy, the rotating pipe connecting piece is fastened on the cross beam main pipe, and a middle connecting piece and two lateral connecting pieces are all integrally formed on the cross beam main pipe in an injection molding mode. The deformation problem caused by welding operation is avoided, welding smoke is reduced, the size stability is improved, the self weight is greatly reduced, and the requirement for lightweight design of vehicles can be met. The closed cross beam main pipe is arranged, and any one or any combination structure of the transverse reinforcing ribs, the longitudinal reinforcing ribs or the inclined reinforcing ribs is arranged on the connecting piece, so that the structural strength of the connecting piece is improved. The connecting strength of the rotating pipe connecting piece and the cross beam main pipe is improved in the mode that the assembling clamping groove of the rotating pipe connecting piece is matched with the fastening piece. The X-direction mounting points and the Y-direction mounting points on the lateral connecting pieces are used for improving the connecting strength of the lateral connecting pieces and the side wall.

Description

Technical Field

[0001] The utility model belongs to the technical field of instrument panel assemblies, and more specifically relates to an instrument panel crossbeam and a vehicle. Background Art

[0002] The instrument panel cross member in an automobile provides a critical load-bearing structure for the instrument panel assembly and its accessories. It integrates multiple critical vehicle systems, such as the steering wheel, head-up display, entertainment console, air conditioning vents, and airbags. As a load-bearing component, the instrument panel cross member provides a mounting interface for the vehicle's electronic control module and is directly connected to the vehicle body, carrying and transmitting the loads of the connected components.

[0003] In automotive manufacturing, the design and material selection of instrument panel crossbeams are extremely demanding, as they directly impact the vehicle's engineering, driving performance, NVH (noise, vibration, and harshness) performance, and occupant safety. Improper design can cause deformation of connected components, leading to functional failure and reduced occupant safety. Furthermore, instrument panel crossbeams must withstand, absorb, and transmit collision energy, making them crucial components for occupant protection.

[0004] Traditional steel is widely used in automotive manufacturing. While steel instrument panel crossbeams meet strength requirements, they require stamping and then welding to the assembly. This process can easily deform, produces significant welding fumes, and has poor dimensional stability. Furthermore, their weight makes them unsuitable for lightweight vehicle design. While simply reducing the thickness of the instrument panel crossbeam's connectors can achieve weight reduction, it still cannot avoid the problems associated with welding and can also lead to insufficient structural strength in the connectors. Utility Model Content

[0005] The purpose of the utility model is to provide an instrument panel cross beam, aiming to solve the problem that the instrument panel cross beam is easily deformed during the welding process and it is difficult to take into account both the lightweight of the vehicle and the strength of its own structure.

[0006] To achieve the above-mentioned object, the technical solution adopted by the present invention is as follows: providing an instrument panel cross beam, comprising a cross beam main body and a plurality of connectors, wherein the plurality of connectors at least include a central connector located in the middle of the cross beam main body, lateral connectors located on both sides of the cross beam main body, and a transfer connector located between any of the lateral connectors and the central connector;

[0007] The crossbeam main pipe and the rotating pipe connecting piece are both made of light alloy. The rotating pipe connecting piece is fastened to the crossbeam main pipe. The middle connecting piece and the two lateral connecting pieces are integrally injection-molded on the crossbeam main pipe.

[0008] In a possible implementation, at least one side surface of the connector is provided with a reinforcement structure, which can respectively enhance the structural strength, bearing capacity and deformation resistance of the central connector, the lateral connector and the rotating tube connector.

[0009] In a possible implementation, the reinforcement structure includes any one or any combination of transverse reinforcement ribs, longitudinal reinforcement ribs or inclined reinforcement ribs.

[0010] In one possible implementation, the edge of one side of the connector having the reinforcement structure is provided with a flange, and the reinforcement structure is connected to the flange to form a closed reinforcement cavity, which can further enhance the structural strength, bearing capacity and deformation resistance of the connector itself.

[0011] In a possible implementation, an assembly slot is provided at one end of the rotating pipe connector, and the assembly slot is mounted on the beam main pipe and connected through multiple fasteners, avoiding welding and facilitating the installation of the rotating pipe connector and the beam main pipe.

[0012] In a possible implementation, the plurality of fasteners are arranged in sequence along the length direction of the beam main pipe, and the plurality of fasteners all penetrate and connect the assembly slot and the beam main pipe, thereby improving the stability of the connection between the rotating tube connector and the beam main pipe.

[0013] In a possible implementation, the crossbeam main body has an oblong central hole, and the assembly slot is clamped on the crossbeam main body along the long axis direction of the oblong central hole. The assembly slot has no tendency to rotate relative to the crossbeam main body, and has better stability.

[0014] In a possible implementation, blocking covers are respectively provided at both ends of the crossbeam main pipe in the length direction, and the two blocking covers are respectively plugged into and matched with the two ends of the crossbeam main pipe to form a closed structure of the crossbeam main pipe.

[0015] In one possible implementation, the lateral connector is provided with multiple X-direction mounting points and at least one Y-direction mounting point, and the multiple X-direction mounting points are arranged on the lateral connector at intervals in the Z direction, so as to connect and position the lateral connector and the vehicle body side panel from the X direction, Y direction and Z direction respectively.

[0016] In a possible implementation, a reinforcing sleeve is embedded in the X-direction mounting point, which can greatly increase the structural strength of the X-direction mounting point.

[0017] The instrument panel crossbeam provided by the present invention has at least the following beneficial effects compared with the prior art:

[0018] 1. The central connector and two lateral connectors are made of plastic, while the crossbeam main and swivel connectors are made of lightweight alloy. The central connector is integrally injection-molded in the center of the crossbeam main, while the two lateral connectors are integrally injection-molded on either side of the crossbeam main. The swivel connector is fastened to the crossbeam main and positioned between each lateral connector and the central connector, thus forming a stable overall structure for the instrument panel crossbeam. Compared to steel instrument panel crossbeams, the instrument panel crossbeam provided by this utility model utilizes a lightweight alloy and plastic integrally injection-molded construction. This not only avoids deformation caused by welding, reduces welding fumes, and improves dimensional stability, but also significantly reduces its own weight, meeting the requirements of vehicle lightweight design.

[0019] 2. By setting a closed crossbeam main pipe and setting any one or any combination of transverse reinforcement ribs, longitudinal reinforcement ribs or inclined reinforcement ribs on the connecting parts, the structural strength of the connecting parts themselves can be improved.

[0020] 3. Use the assembly slot of the rotating pipe connector in conjunction with the fastener to improve the connection strength between the rotating pipe connector and the beam main pipe.

[0021] 4. Use the X-direction mounting points and Y-direction mounting points on the lateral connector to improve the connection strength between the lateral connector and the side panel.

[0022] The present invention also provides a vehicle comprising the instrument panel cross beam.

[0023] The vehicle provided by the present invention has the following advantages: Compared with the prior art, due to the use of the aforementioned instrument panel cross member, this vehicle has the same advantages as the instrument panel cross member. However, compared with steel instrument panel cross members, this vehicle utilizes a lightweight alloy and plastic integrally injection-molded construction. This not only avoids deformation caused by welding, reduces welding fumes, improves dimensional stability, but also significantly reduces its weight, meeting the requirements of lightweight vehicle design. Furthermore, structural strength is enhanced by providing transverse, longitudinal, or inclined ribs on each connecting member. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0025] Figure 1 A schematic structural diagram of a dashboard crossbeam provided by an embodiment of the present utility model;

[0026] Figure 2 A schematic structural diagram of a middle connecting member provided in an embodiment of the present utility model;

[0027] Figure 3 A schematic structural diagram of a lateral connector provided in an embodiment of the present utility model;

[0028] Figure 4 A schematic structural diagram of a rotating pipe connector provided in an embodiment of the present utility model;

[0029] Figure 5 An assembly diagram of the crossbeam main pipe and lateral connector provided in an embodiment of the present utility model;

[0030] Figure 6 This is a cross-sectional view of a crossbeam main pipe provided in an embodiment of the present utility model.

[0031] In the figure: 1. Crossbeam main pipe; 2. Middle connecting piece; 201. Middle mounting sleeve; 202. Mounting ring; 3. Lateral connecting piece; 301. Side mounting sleeve; 4. Rotating pipe connecting piece; 5. Horizontal reinforcing rib; 6. Longitudinal reinforcing rib; 7. Inclined reinforcing rib; 8. Flanging; 9. Clamping plate; 10. Assembly slot; 11. Reinforced shaft sleeve; 12. Plug cover. DETAILED DESCRIPTION

[0032] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0033] Unless otherwise explicitly defined, the use of terms such as "first," "second," or "third," etc., are intended to distinguish different objects rather than to describe a specific order.

[0034] Unless otherwise expressly defined, directional words such as the terms "center", "lateral", "longitudinal", "horizontal", "vertical", "top", "bottom", "inside", "outside", "up", "down", "front", "back", "left", "right", "clockwise", "counterclockwise", "high", "low" and the like indicating directions or positional relationships are based on the directions and positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, so they cannot be understood as limiting the specific scope of protection of the present invention.

[0035] See also Figure 1The present invention now provides an instrument panel crossbeam. The instrument panel crossbeam comprises a crossbeam main body 1 and multiple connectors, including at least a central connector 2 located in the middle of the crossbeam main body 1, lateral connectors 3 located on either side of the crossbeam main body 1, and a swivel connector 4 located between each lateral connector 3 and the central connector 2. At least one side of the connector is provided with a reinforcement structure. Both the crossbeam main body 1 and the swivel connector 4 are made of a lightweight alloy. The swivel connector 4 is fastened to the crossbeam main body 1. The central connector 2 and two lateral connectors 3 are integrally injection molded onto the crossbeam main body 1.

[0036] The instrument panel crossbeam provided by the present invention, compared to the prior art, has a central connector 2 and two lateral connectors 3 made of plastic, a crossbeam main body 1 and a rotating tube connector 4 made of lightweight alloys, a central connector 2 integrally injection-molded in the middle of the crossbeam main body 1, and two lateral connectors 3 integrally injection-molded on either side of the crossbeam main body 1. The rotating tube connector 4 is fastened to the crossbeam main body 1 and positioned between any of the lateral connectors 3 and the central connector 2, thereby forming a stable main structure of the instrument panel crossbeam. Compared to instrument panel crossbeams made of steel, the instrument panel crossbeam provided by the present invention utilizes a lightweight alloy and plastic integrally injection-molded construction. This not only avoids deformation caused by welding, reduces welding fumes, and improves dimensional stability, but also significantly reduces its own weight, meeting the requirements of vehicle lightweight design. Furthermore, structural strength is enhanced by providing a reinforcement structure on at least one side of each connector.

[0037] Specifically, the crossbeam main body 1 is formed through a machining and bending process and is constructed from an aluminum alloy. Its uniform, closed structure offers greater load-bearing capacity than semi-enclosed structures, and is more resistant to deformation under the same applied forces. Both the lateral connectors 3 and the central connector 2 are integrally injection-molded with the crossbeam main body 1 using a PA6-GF30 plastic material. The rotating pipe connector 4 is secured to the crossbeam main body 1 and is constructed from a magnesium alloy.

[0038] In addition, depending on the specific vehicle model and the main road conditions, the crossbeam main pipe 1 and the rotating pipe connector 4 can be made of any combination of aluminum alloy or magnesium alloy.

[0039] A reinforcement structure is provided on at least one side of the connector. By providing a reinforcement structure on the side of the connector, the structural strength, bearing capacity and deformation resistance of the central connector 2, the lateral connector 3 and the rotating tube connector 4 can be improved respectively.

[0040] The reinforcement structure includes any one or any combination of transverse ribs 5, longitudinal ribs 6, or inclined ribs 7. The specific use of transverse ribs 5, longitudinal ribs 6, or inclined ribs 7 on the corresponding connectors should be determined based on the connector's structure, installation location, and stress conditions. Transverse ribs 5, longitudinal ribs 6, or inclined ribs 7 can be used individually or in any combination on the connectors.

[0041] It is worth noting that the above-mentioned transverse reinforcement ribs 5 and longitudinal reinforcement ribs 6 are not limited to completely horizontal or completely vertical reinforcement ribs, but are close to transverse or longitudinal reinforcement rib structures.

[0042] In addition, the edge of the connector's side with the reinforcement structure is provided with a flange 8. This flange 8 is integrally formed with the connector and bends toward the side with the reinforcement structure. The reinforcement structure and flange 8 connect to form a closed reinforcement cavity. This flange 8 enhances the connector's structural strength, and the closed reinforcement cavity formed by the flange 8 and the reinforcement structure further enhances the connector's structural strength, load-bearing capacity, and resistance to deformation.

[0043] Specific reference Figure 2 The middle connecting member 2 adopts a reinforcement structure of several transverse reinforcing ribs 5 alone. Both sides of the middle connecting member 2 are provided with flanges 8. The two ends of the transverse reinforcing ribs 5 are vertically connected to the flanges 8, thereby forming multiple closed reinforcement cavities from top to bottom. The shape of the closed reinforcement cavity is close to a "mouth"-shaped cavity.

[0044] Specific reference Figure 3 and Figure 4 Both the lateral connector 3 and the rotatable connector 4 utilize a reinforced structure comprising a plurality of transverse ribs 5 and a plurality of longitudinal ribs 6. These ribs 5 and 6 intersect and intersect to form the aforementioned closed reinforced cavity. Similarly, the lateral connector 3 and the rotatable connector 4 are provided with flanges 8 along their circumferences. The transverse ribs 5 and longitudinal ribs 6 at their edges cooperate with the flanges 8 to form the aforementioned closed reinforced cavity, which is approximately triangular in shape.

[0045] Specific reference Figure 2 、 Figure 3 as well as Figure 4 The middle connecting part 2 adopts a reinforcement structure of several transverse reinforcing ribs 5 and several inclined reinforcing ribs 7. The middle connecting part 2 has a circumferential flange 8. The transverse reinforcing ribs 5 and the inclined reinforcing ribs 7 located at the edge cooperate with the flange 8 to form the above-mentioned closed reinforcement cavity. The shape of the closed reinforcement cavity is close to a triangular cavity.

[0046] Of course, the longitudinal reinforcement ribs 6 and the inclined reinforcement ribs 7 can also be used individually or in combination on the connecting piece, or the transverse reinforcement ribs 5, the longitudinal reinforcement ribs 6 and the inclined reinforcement ribs 7 can be used in combination on the connecting piece at the same time, which will not be repeated here.

[0047] The middle and upper part of the lateral connector 3 is provided with a lateral mounting sleeve 301 . When the lateral connector 3 is injection molded on the crossbeam main pipe 1 , the lateral mounting sleeve 301 is injection molded along with the lateral connector 3 and wrapped around the crossbeam main pipe 1 .

[0048] The middle upper part of the middle connecting part 2 is provided with two middle mounting sleeves 201, and a plurality of mounting rings 202 are connected in sequence between the two middle mounting sleeves 201. When the middle connecting part 2 is injection molded on the crossbeam main pipe 1, the middle mounting sleeves 201 and the mounting rings 202 are injection molded along with the middle connecting part 2 and wrapped around the crossbeam main pipe 1.

[0049] See also Figure 4 The lower end of the swivel connector 4 is equipped with two parallel clamping plates 9, which are integrally formed on the side of the swivel connector 4 facing the crossbeam main pipe 1. An assembly slot 10 is formed between the two clamping plates 9. The width of the assembly slot 10 (the distance between the opposing side walls of the two clamping plates 9) matches the outer width of the crossbeam main pipe 1. The assembly slot 10 is clamped onto the crossbeam main pipe 1 and connected via multiple fasteners, thereby achieving non-welding installation of the swivel connector 4 and the crossbeam main pipe 1, avoiding welding and facilitating installation of the swivel connector 4 and the crossbeam main pipe 1.

[0050] Preferably, the assembly slot 10 and the crossbeam main pipe 1 are installed by tight fit, which can improve the stability after assembly.

[0051] The fasteners are M5 flow drill screws, which are screwed from the outside of the clamping plate 9 into the inner wall of the crossbeam main tube 1, thereby securing the clamping plate 9 to the crossbeam main tube 1. Multiple flow drill screws are arranged in sequence along the length of the crossbeam main tube 1 (the axis of the crossbeam main tube 1), thereby improving the stability of the connection between the rotating pipe connector 4 and the crossbeam main tube 1.

[0052] For details, please refer to Figure 6 The crossbeam main tube 1 has an oblong central hole. Mounting slots 10 are mounted on either side of the crossbeam main tube 1 along the long axis of the oblong central hole. This creates a large contact area between the retaining plates 9 and the crossbeam main tube 1, facilitating fastener installation. Furthermore, the crossbeam main tube 1 is a tube of uniform wall thickness, resulting in an oblong cross-sectional profile. When the mounting slots 10 are oriented along the long axis of the oblong shape, they are less likely to rotate relative to the crossbeam main tube 1, resulting in improved stability.

[0053] Preferably, there are two groups of fasteners, which respectively penetrate from the outside of the two clamping plates 9 and extend into the interior of the beam main tube 1. Multiple fasteners in the same group are installed in sequence along the length direction of the beam main tube 1 (the axial direction of the beam main tube 1).

[0054] See also Figure 5 The lateral connector 3 is provided with a plurality of X-direction mounting points and at least one Y-direction mounting point. The connector realizes the X-direction connection between the lateral connector 3 and the vehicle body side through the X-direction mounting points, and realizes the Y-direction connection between the lateral connector 3 and the vehicle body side through the Y-direction mounting points. A plurality of X-direction mounting points are arranged on the lateral connector 3 at intervals in the Z direction. The lateral connector 3 is connected to the vehicle body side using a plurality of X-direction mounting points and one Y-direction mounting point (not shown in the figure), which can form X-direction and Y-direction positioning. At the same time, a plurality of X-direction mounting points are arranged at intervals along the Z direction, which can also form Z-direction positioning. Finally, the three-dimensional spatial positioning of the lateral connector 3 and the vehicle body side is achieved, that is, the lateral connector 3 and the vehicle body side are connected and positioned from the X direction, the Y direction and the Z direction respectively.

[0055] See also Figure 5 A reinforcing sleeve 11 is embedded in the X-direction mounting point. Made of steel, it extends through the lateral connector 3 from the X-direction. Embedded within the lateral connector 3, the reinforcing sleeve 11 maintains stability. The center hole of the reinforcing sleeve 11 forms the aforementioned X-direction mounting point, significantly increasing the structural strength of the X-direction mounting point. Similarly, the Y-direction mounting point can also be equipped with a reinforcing sleeve 11, which will not be discussed further here.

[0056] In addition, a blocking cover 12 is installed at both ends of the beam main pipe 1. One side of the blocking cover 12 has an insertion portion, which is inserted into the middle hole of the beam main pipe 1. The outer contour of the blocking cover 12 is adapted to the outer contour of the beam main pipe 1, thereby closing the ports on both sides of the beam main pipe 1. The blocking cover 12 closes the ports, so that the beam main pipe 1 forms a closed structure as a whole, further strengthening the structural strength of the beam main pipe 1. At the same time, it can also greatly improve the torsional strength of the two ends of the beam main pipe 1.

[0057] Based on the same inventive concept, the present invention also provides a vehicle that utilizes the aforementioned instrument panel cross member, thereby achieving the same beneficial effects as the instrument panel cross member. Compared to steel instrument panel cross members, this utilizes a lightweight alloy and plastic integrally injection-molded construction. This not only avoids welding-induced deformation, reduces welding fumes, and improves dimensional stability, but also significantly reduces its weight, meeting the requirements of vehicle lightweight design. Furthermore, structural strength is enhanced by providing transverse reinforcement ribs 5, longitudinal reinforcement ribs 6, or inclined reinforcement ribs 7 on each connecting member.

[0058] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A dashboard beam, characterized in that: The invention comprises a crossbeam main pipe (1) and a plurality of connecting members, wherein the plurality of connecting members at least comprises a middle connecting member (2) located in the middle of the crossbeam main pipe (1), lateral connecting members (3) located on both sides of the crossbeam main pipe (1), and a rotating pipe connecting member (4) located between any of the lateral connecting members (3) and the middle connecting member (2), and at least one side surface of the connecting member is provided with a reinforcement structure; The crossbeam main pipe (1) and the rotating pipe connecting piece (4) are both made of light alloy. The rotating pipe connecting piece (4) is fastened to the crossbeam main pipe (1). The middle connecting piece (2) and the two lateral connecting pieces (3) are integrally injection-molded on the crossbeam main pipe (1).

2. The instrument panel cross member according to claim 1, characterized in that: The reinforcement structure comprises any one or any combination of transverse reinforcement ribs (5), longitudinal reinforcement ribs (6) or inclined reinforcement ribs (7).

3. The instrument panel cross member according to claim 2, characterized in that: The edge of one side of the connecting piece having the reinforcing structure is provided with a flange (8), and the reinforcing structure is connected to the flange (8) to form a closed reinforcing cavity.

4. The instrument panel cross member according to claim 1, characterized in that: One end of the rotating pipe connector (4) is provided with an assembly slot (10), and the assembly slot (10) is clamped on the crossbeam main pipe (1) and connected via a plurality of fasteners.

5. The instrument panel cross member according to claim 4, characterized in that: The plurality of fasteners are sequentially arranged along the length direction of the crossbeam main pipe (1), and the plurality of fasteners all penetrate and connect the assembly slot (10) and the crossbeam main pipe (1).

6. The instrument panel cross member according to claim 4, characterized in that: The crossbeam main pipe (1) is provided with an oblong central hole, and the assembly slot (10) is clamped on the crossbeam main pipe (1) along the long axis direction of the oblong central hole.

7. The instrument panel cross member according to claim 1, characterized in that: Both ends of the crossbeam main pipe (1) in the longitudinal direction are respectively provided with blocking covers (12), and the two blocking covers (12) are respectively plugged into and matched with the two ends of the crossbeam main pipe (1) to form a closed structure of the crossbeam main pipe (1).

8. The instrument panel cross member according to claim 1, characterized in that: The lateral connecting member (3) is provided with a plurality of X-direction mounting points and at least one Y-direction mounting point, and the plurality of X-direction mounting points are arranged on the lateral connecting member (3) at intervals in the Z direction.

9. The instrument panel cross member according to claim 8, characterized in that: A reinforcing sleeve (11) is embedded in the X-axis mounting point.

10. A vehicle, characterized in that: The invention comprises the instrument panel cross beam according to any one of claims 1 to 9.

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