Injection molded instrument panel cross-car beam and design method

Abstract

The present application relates to the technical field of instrument panel cross beam, and discloses an injection instrument panel cross beam and a design method, which comprises end plate templates at both ends and a middle support module in the middle, the middle support module is connected with a pipe column mounting bracket module and one end of a main beam module at both ends respectively, and the other end of the pipe column mounting bracket module and the main beam module is fixedly connected with the corresponding end plate module;The mounting point of the end plate module is symmetric about the center plane of the vehicle body;By designing the instrument panel cross beam as the pipe column mounting bracket module and the main beam module, the middle support module and the end plate module, the platform design of the instrument panel cross beam can be realized by modifying the structure and mold insert block of individual modules, the structure and mold of the instrument panel cross beam can be used to the greatest extent under different sitting postures such as high, medium and low under the same platform, and the development cycle is shortened and the mold development cost is saved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of instrument panel cross beam, in particular to an injection molded instrument panel cross beam and a design method. BACKGROUND

[0002] The instrument panel and the cross beam assembly supporting the instrument panel must have sufficient rigidity to ensure that various instruments and parts supported can work normally under high-speed driving and vibration state, and in order to reduce the impact of external force on the driver and the front passenger in case of accident, the instrument panel also requires good energy absorption. And the comprehensive mechanical properties of the cross beam assembly of the instrument panel have high requirements.

[0003] At present, the instrument panel cross beam in the industry is mainly welded with steel, welded with aluminum, die-cast with magnesium alloy and injection molded. The process chain of the welded cross beam is too long, the product consistency is poor, and the steel instrument panel cross beam is heavy. The cost of die-casting magnesium alloy is too high, and only one mold can be used for one vehicle, which cannot be platformed. The injection molded instrument panel cross beam is mainly of steel and aluminum types by insert injection molding, and cannot realize the manufacturing and processing of multiple vehicle types based on the same set of main mold, and cannot realize platformization. SUMMARY

[0004] In view of the deficiencies of the prior art, the purpose of the present application is to provide an injection molded instrument panel cross beam and a design method, which designs the instrument panel cross beam as a pipe column installation support module and a main beam module, a middle support module and an end plate module, modifies the structure and mold insert block of only one of the modules, realizes the platform design of the instrument panel cross beam, meets the different sitting postures under the same platform, and uses the structure and mold of the instrument panel cross beam to the greatest extent, realizes the purpose of shortening the development cycle and saving mold development cost.

[0005] In order to achieve the above purpose, the present application is realized by the following technical scheme:

[0006] In a first aspect, an injection molded instrument panel cross beam includes end plate modules at both ends and a middle support module in the middle, the middle support module is connected to one end of the pipe column installation support module and the main beam module at both ends, and the other end of the pipe column installation support module and the main beam module is fixedly connected to the corresponding end plate module; the mounting points of the end plate modules are symmetric about the center plane of the vehicle body.

[0007] As a further implementation manner, the end plate module includes a left end plate module at the left end of the instrument panel cross beam and a right end plate module at the right end of the instrument panel cross beam, and the mounting points of the two groups of end plate modules are determined according to the Y-direction size of the whole vehicle and the X-direction position of the front door opening.

[0008] As a further implementation manner, the pipe column mounting support module comprises a left rudder pipe column mounting support module connected between the left end plate module and the middle support module, and a right rudder pipe column mounting support module connected between the right end plate module and the middle support module; the left rudder pipe column mounting support module and the right rudder pipe column mounting support module are structurally symmetrical.

[0009] As a further implementation manner, the main beam module comprises a left main beam module and a right main beam module which are structurally symmetrical, wherein the left main beam module and the right rudder pipe column mounting support module are used in a group; the right main beam module and the left rudder pipe column mounting support module are used in a group.

[0010] As a further implementation manner, the left rudder pipe column mounting support module and the right rudder pipe column mounting support module each comprise a first Y-direction main beam and a steering column mounting frame mounted on the first Y-direction main beam, and the middle support module comprises a second Y-direction main beam; the first Y-direction main beam comprises three types, respectively making the main body of the first Y-direction main beam in a same straight line as the second Y-direction main beam, higher than the second Y-direction main beam, and lower than the second Y-direction main beam.

[0011] As a further implementation manner, the middle support module further comprises a middle control connecting frame connected below the second Y-direction main beam, the middle control connecting frame is provided with an air conditioner mounting point, and the bottom of the middle control connecting frame is provided with a vehicle body bottom plate mounting point.

[0012] The second aspect is a design method of an injection molded instrument panel cross beam, characterized by comprising the following steps:

[0013] According to the Y-direction size of the whole vehicle and the X-direction position of the front door opening, the mounting point of the instrument panel cross beam on the side wall of the vehicle body is determined, the structure of the left end plate module and the right end plate module is determined, the structure of the middle support module is determined according to the arrangement position of the air conditioner of the platform planning, the Z-direction position of the upper second Y-direction main beam of the middle support module needs to consider the left end plate module and the right end plate module, the interface structure of the left end plate module and the right end plate module is determined to match the pipe column mounting support module, the structure of the main beam module is determined according to the mounting point of the end of the second Y-direction main beam and the end plate module, and the injection molded instrument panel cross beam is obtained.

[0014] As a further implementation manner, the pipe column mounting support module comprises a left rudder pipe column mounting support module connected between the left end plate module and the middle support module, and a right rudder pipe column mounting support module connected between the right end plate module and the middle support module; the left rudder pipe column mounting support module and the right rudder pipe column mounting support module are structurally symmetrical; the main beam module structure comprises a left main beam module and a right main beam module, the left main beam module and the right rudder pipe column mounting support module are used in a group; the right main beam module and the left rudder pipe column mounting support module are used in a group.

[0015] As a further implementation manner, the pipe column mounting support module comprises a first Y-direction main beam, which is designed in common near one end of the end plate module and is set as three types of structure differences near one end of the second Y-direction main beam according to different sitting heights, so as to correspond to the height requirement of the installed steering column.

[0016] As a further implementation manner, the installation points of the corresponding instrument panel and electrical device module are solidified, implementation of each vehicle type is followed, and the live support is used for differential design.

[0017] The beneficial effects of the present application are as follows:

[0018] 1. The present application utilizes the replaceable characteristics of the injection mold insert, designs the instrument panel cross beam as a pipe column mounting support module and a main beam module, a middle support module and an end plate module, modifies the structure and mold insert of the individual module, realizes the platform design of the instrument panel cross beam, satisfies different sitting positions under the same platform, uses the structure and mold of the instrument panel cross beam to the greatest extent, realizes the purpose of shortening the development cycle and saving the mold development cost.

[0019] 2. The pipe column mounting support module and the main beam module are used in groups, can satisfy the use requirement of the left and right rudders, the first Y-direction main beam of the pipe column mounting support module is set as three types of structures, can match the car type, CROSS type and SUV type, realizes the differentiation of the sitting height. DETAILED DESCRIPTION

[0020] The drawings accompanying the specification of the present application form a part of the present application, and the illustrative embodiments of the present application and their descriptions serve to explain the present application, and do not constitute an improper limitation on the present application.

[0021] Figure 1 is a schematic view of the left rudder instrument panel cross beam module split in the embodiment of the present application;

[0022] Figure 2 is a schematic view of the right rudder pipe column mounting support module in the embodiment of the present application;

[0023] Figure 3 is a schematic view of the left main beam module in the embodiment of the present application;

[0024] Figure 4 is a schematic view of the left rudder instrument panel cross beam in the middle sitting position in the embodiment of the present application;

[0025] Figure 5 is a schematic view of the left rudder instrument panel cross beam in the low sitting position in the embodiment of the present application;

[0026] Figure 6 is a schematic view of the left rudder instrument panel cross beam in the sitting position in the embodiment of the present application;

[0027] Figure 7 This is a schematic diagram of the right-hand drive instrument panel crossbeam in an embodiment of the present invention.

[0028] The diagram exaggerates the spacing or dimensions between parts to show their positions; the diagram is for illustrative purposes only.

[0029] The components are: 1. Left end plate module; 2. Left rudder column mounting bracket module; 3. Middle support module; 4. Right main beam module; 5. Right end plate module; 6. Right rudder column mounting bracket module; 7. Left main beam module; 8. Middle seating position left rudder instrument panel crossbeam; 9. Low seating position left rudder instrument panel crossbeam; 10. High seating position left rudder instrument panel crossbeam.

[0030] 11. First vehicle side panel mounting point; 21. Steering column mounting point; 22. First Y-axis main beam; 31. Air conditioning mounting point; 32. Vehicle floor mounting point; 33. Second Y-axis main beam; 34. Center console connecting frame; 51. Second vehicle side panel mounting point; 81. Middle seating position steering column position; 91. Low seating position steering column position; 101. High seating position steering column position; 12. Right-hand drive instrument panel crossbeam. Detailed Implementation

[0031] It should be noted that the following detailed description is illustrative and intended to provide further explanation of the invention. Unless otherwise specified, all technical and scientific terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0032] Example 1

[0033] In a typical embodiment of the present invention, reference is made to Figures 1-7 As shown, an injection-molded instrument panel crossbeam includes end plate templates at both ends and a middle support module 3 in the middle. The two ends of the middle support module 3 are respectively connected to one end of the column mounting bracket module and the main beam module. The other ends of the column mounting bracket module and the main beam module are fixedly connected to the end plate module on the corresponding side. The mounting points of the end plate modules are symmetrical about the center plane of the vehicle body.

[0034] like Figure 1 As shown, the end plate template includes a left end plate module 1 located at the left end of the instrument panel crossbeam and a right end plate module 5 located at the right end of the instrument panel crossbeam. The column mounting bracket module includes a left-hand drive column mounting bracket module 2 connected between the left end plate module 1 and the middle support module 3, and a right-hand drive column mounting bracket module 6 connected between the right end plate module 5 and the middle support module 3; the left-hand drive column mounting bracket module 2 and the right-hand drive column mounting bracket module 6 are structurally symmetrical. The main beam module includes a structurally symmetrical left main beam module 7 and a right main beam module 4.

[0035] The left end plate module 1 and the right end plate module 5 are connected to the vehicle body as the connection structure of the instrument panel beam at both ends, and are also the installation and positioning reference of the instrument panel beam under the whole vehicle.

[0036] The left steering column mounting bracket module 2 and the right steering column mounting bracket module 6 are responsible for providing installation for the steering column, ensuring the required installation point rigidity requirement, and are also the modules that need to be adjusted in coordination with the different column positions to follow the different sitting positions of the driver in the whole instrument panel beam.

[0037] The middle support module 3 is mainly responsible for installing the air conditioner under the current platform, and the lower part is also connected to the vehicle body floor to realize the required rigidity and strength of the instrument panel beam in the Y direction and the Z direction of the whole vehicle.

[0038] The right main beam module 4 and the left main beam module 7 realize the connection of the left steering column mounting bracket module 2 and the right end plate module 5, so that the instrument panel beam becomes a whole.

[0039] It can be understood that the left main beam module 7 and the right steering column mounting bracket module 6 are used in groups; the right main beam module 4 and the left steering column mounting bracket module 2 are used in groups, and in the left steering mode, that is, when the left steering column mounting bracket module 2 is installed between the left end plate module 1 and the middle support module 3, the right main beam module 4 should be connected between the right end plate module 5 and the middle support module 3 at this time; in the right steering mode, when the left main beam module 7 is installed between the left end plate module 1 and the middle support module 3, the right steering column mounting bracket module 6 should be connected between the right end plate module 5 and the middle support module 3 at this time.

[0040] As shown in Figure 1 and Figure 4 , the left steering column mounting bracket module 2 and the right steering column mounting bracket module 6 each include a first Y-direction main beam 22 and a steering column mounting bracket installed on the first Y-direction main beam 22, and the steering column mounting bracket is provided with a steering column mounting point 21. The middle support module 3 includes a second Y-direction main beam 33, and a central control connecting bracket 34 is connected below the second Y-direction main beam 33, and the central control connecting bracket 34 is in an H shape.

[0041] According to different sitting positions, the first Y-direction main beam can be provided in three structure types, and specifically, the first Y-direction main beam includes three types, respectively making the main body of the first Y-direction main beam and the second Y-direction main beam in the same straight line, higher than the second Y-direction main beam 33, and lower than the second Y-direction main beam 33, as shown in Figures 4-6 .

[0042] The central control connecting bracket 34 is provided with an air conditioner mounting point 31 at the upper position, for installing the air conditioner. The bottom of the central control connecting bracket is provided with a vehicle body floor mounting point 32 for fixed connection with the vehicle body floor.

[0043] The left main beam module 7 and the right main beam module 4 are main beam structures, and are in the same straight line as the second Y-direction main beam 33. The left end plate module 1 and the right end plate module 5 are provided with a first vehicle body side wall mounting point 11 and a second vehicle body side wall mounting point 51, facilitating installation of the end plate module. As shown in Figure 1 Fig. 1, a split structure of each module in a left-hand mode.

[0044] In the construction of the platform, car models, CROSS models and SUV models are planned, and the corresponding driver sitting positions correspond to three positions, mainly in the Z-direction of the whole vehicle, the low, medium and high sitting positions of the car models, CROSS models and SUV models are sequentially divided into low, medium and high sitting positions. As shown in Figures 4-6 Fig. 2, in order to meet the comfort of the driver's operation of the steering wheel and the steering column, three positions of the steering column and the steering wheel are designed corresponding to different sitting positions.

[0045] At the same time, in order to follow the inside of the firewall and the front floor platform, the air conditioner position remains fixed. The Y-direction size of the vehicle body is also limited in a range, ensuring the unity of the internal space, and accordingly ensuring the Y-direction size of the instrument panel beam fixed. On the basis of the left-hand model, in the planning of the right-hand model in the platform, the steering column is symmetrical to the left-hand, that is, the structure of the left-hand column mounting bracket module 2 and the right-hand column mounting bracket module 6 is symmetrical, and the air conditioner position remains unchanged.

[0046] As shown in Figure 4 Fig. 3, in the left-hand mode, the first Y-direction main beam 22 of the left-hand column mounting bracket module 2 is of the same structure in width, and the two ends thereof are connected with the left end plate module 1 and the second Y-direction main beam 33 through corresponding mounting points, at this time, the main body of the first Y-direction main beam 22 is the same height as the second Y-direction main beam 33, and correspondingly forms a medium sitting position left-hand instrument panel beam 8 and a medium sitting position steering column position 81, which is a medium sitting position left-hand mode, corresponding to the CROSS model.

[0047] As shown in Figure 5 Fig. 4, in the left-hand mode, the right end of the first Y-direction main beam 22 of the left-hand column mounting bracket module 2 gradually extends upward and increases in width, and the two ends thereof are connected with the left end plate module 1 and the second Y-direction main beam 33 through corresponding mounting points, at this time, the main body of the first Y-direction main beam 22 is lower than the second Y-direction main beam 33, and correspondingly forms a low sitting position left-hand instrument panel beam 9 and a low sitting position steering column position 91, which is a low sitting position left-hand mode, corresponding to the car model.

[0048] As shown in Figure 6As shown, in the left-hand mode, the right end of the first Y-direction main beam 22 of the left-hand column mounting bracket module 2 gradually extends downward and increases in width, and the two ends are connected with the left end plate module 1 and the second Y-direction main beam 33 through corresponding mounting points, at this time, the first Y-direction main beam 22 is higher than the second Y-direction main beam 33, and a high-sitting left-hand instrument panel cross beam 10 and a high-sitting steering column position 101 are formed, which is a high-sitting left-hand mode, and corresponds to an SUV vehicle.

[0049] As shown in FIG. 1, the left-hand column mounting bracket module 2 is used in the left-hand mode, and the right-hand column mounting bracket module 6 is used in the right-hand mode. Figure 7 As shown, in the right-hand mode, the right-hand column mounting bracket module 6 is used in cooperation with the left main beam module 7, the first Y-direction main beam of the right-hand column mounting bracket module 6 also includes three types, and corresponds to the left-hand column mounting bracket module 2, Figure 7 As shown in FIG. 1, the left-hand column mounting bracket module 2 is used in the left-hand mode, and the right-hand column mounting bracket module 6 is used in the right-hand mode.

[0050] In this embodiment, the instrument panel cross beam is set as a modular structure, combined with the planning of the whole vehicle platform, in the human-machine arrangement of high, medium and low sitting positions, the arrangement positions of the surrounding parts are changed, the instrument panel cross beam is split into multiple modules according to the requirements, different surrounding parts are matched, and the installation with the vehicle body is required to have corresponding rigidity requirements, finally, the performance requirements of the instrument panel cross beam in the whole vehicle, such as NVH and collision safety, are met.

[0051] By using the replaceable characteristics of the injection mold inserts, the instrument panel cross beam is designed as several modules, by modifying only the structure and mold inserts of individual modules, the platform design of the instrument panel cross beam is realized, the structure and mold of the instrument panel cross beam are used to the greatest extent under different sitting positions of the same platform, the development cycle is shortened, and the mold development cost is saved. Combined with the replaceable advantage of the injection mold inserts, the modular design of the structure is carried out, the maximum generalization of the instrument panel cross beams of different sitting positions of each vehicle under the same platform is realized, the development cycle is saved, and the module development cost is saved.

[0052] It can be understood that the X direction of the embodiment represents the front-rear direction of the vehicle, the Y direction represents the left-right direction of the vehicle, and the Z direction represents the up-down direction of the vehicle.

[0053] In a second aspect, a design method of an injection instrument panel cross beam comprises the following steps:

[0054] Combined with the platform planning and considering the difference between left-hand and right-hand, the instrument panel cross beam is divided into five modules, and the functions and mutual relations of the five modules are set.

[0055] Firstly, according to the overall vehicle Y dimension and the X position of the front door opening, the mounting point of the instrument panel cross beam on the body side is agreed as one of the hard points of the interface between the body and the instrument panel cross beam in the platform. After the mounting point and mounting surface of the instrument panel cross beam are solidified, the preliminary structure of the left end plate module 1 and the right end plate module 5 can be designed, and the mounting points of the left end plate module 1 and the right end plate module 5 on the body are symmetrical about the body center plane.

[0056] Then, according to the planned air conditioner arrangement position in the platform, the structure of the middle support module 3 is designed. In the design process, the structure of the second Y direction main beam 33 in the upper part needs to take into account the Z direction position of the left end plate module 1 and the right end plate module 5, and at the same time, the Z direction position of the main beam cannot be higher than the upper surface of the air conditioner upper air outlet to avoid interference with the instrument panel cross beam when the instrument panel and the air conditioner are docked later. At the same time, the body floor mounting point 32 is set in the lower part, and the connection point with the body floor is solidified as one of the hard points of the interface between the body and the instrument panel cross beam in the platform.

[0057] After the design of the left end plate module 1 and the middle support module 3 is completed, the structure of the left steering column mounting bracket module 2 is designed to match the steering column position planned in the platform, and three left steering column mounting bracket modules 2 corresponding to the three steering column positions need to be designed. Figures 4-6 As shown in the figure. The left end plate module 1 and the middle support module 3 need to be designed with a fixed interface structure that can match the left and right end structures of the three position left steering column mounting bracket modules 2, and the feasibility of mold insert replacement needs to be considered. The interface form of the left steering column mounting bracket module 2 matched with the steering column is uniform, and the structures of the two sides of the three position left steering column mounting bracket modules 2 are different, which are matched with the fixed left end plate module 1 and the middle support module 3 respectively.

[0058] Finally, based on the existing middle support module 3 and right end plate module 5, the design of the right main beam module 4 is completed. The left and right ends of the right main beam module 4 are matched with the middle support module 3 and the right end plate module 5 respectively, and the matching structure between the modules needs to consider the feasibility of mold insert replacement.

[0059] It needs to be clear that when the left steering instrument panel cross beam is designed according to each module, the final implementation of the middle sitting left steering instrument panel cross beam 8, the low sitting left steering instrument panel cross beam 9 and the high sitting left steering instrument panel cross beam 10 needs to take into account the structure of the right steering instrument panel cross beam in advance. Since the steering column is symmetrical with the left steering and the air conditioner position remains unchanged, the left end plate module 1, the right end plate module 5 and the middle support module 3 are shared by the left and right steering, and the right steering instrument panel cross beam 12 is realized by replacing the right main beam module 4 with the right steering column mounting bracket module 6 and replacing the left steering column mounting bracket module 2 with the left main beam module 7, and the module design of the right steering high, middle and low different sitting positions is equivalent to the left steering scheme.

[0060] The module design of the above cross beam needs to consider solidifying the mounting points of part of the instrument panel and electrical device modules, each vehicle model is used, and the ones that cannot be used can be designed differently by using a live mounting support.

[0061] At this point, in the platform, according to the above design method, a platform injection instrument panel cross beam can be completed by replacing the insert block of the mold, only one set of mold is needed under the same platform to realize the demand of different vehicle models, the structure of the same platform vehicle model is maximized, the mold development cycle is shortened, and finally the development cycle of the instrument panel cross beam and the development cost of the mold tooling are shortened.

[0062] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. An injection molded instrument panel cross-car beam characterized in that, The injection molding instrument panel cross beam comprises end plate templates located at both ends and a middle support module located in the middle, the middle support module is connected with a pipe column mounting support module and one end of a main beam module at both ends respectively, and the other end of the pipe column mounting support module and the main beam module is fixedly connected with a corresponding end plate module; mounting points of the end plate module are symmetric about a center plane of the vehicle body left and right; The pipe column mounting support module comprises a left-hand pipe column mounting support module connected between the left end plate module and the middle support module, and a right-hand pipe column mounting support module connected between the right end plate module and the middle support module; the left-hand pipe column mounting support module and the right-hand pipe column mounting support module are structurally symmetric; the main beam module comprises structurally symmetric left and right main beam modules; The left-hand pipe column mounting support module and the right-hand pipe column mounting support module each comprise a first Y-direction main beam and a steering column mounting bracket mounted on the first Y-direction main beam, the middle support module comprises a second Y-direction main beam, and the first Y-direction main beam comprises three types, respectively making a main body of the first Y-direction main beam in a same straight line as the second Y-direction main beam, higher than the second Y-direction main beam or lower than the second Y-direction main beam.

2. An injection molded instrument panel cross-car beam according to claim 1, wherein, The end plate templates comprise a left end plate module located at a left end of an instrument panel cross beam and a right end plate module located at a right end of the instrument panel cross beam, and mounting points of the two groups of end plate modules are determined according to a Y-direction size of the whole vehicle and an X-direction position of a front door opening.

3. An injection molded instrument panel cross-car beam according to claim 1, wherein, The left main beam module and the right-hand pipe column mounting support module are used in a group; the right main beam module and the left-hand pipe column mounting support module are used in a group.

4. An injection molded instrument panel beam according to claim 1, wherein, The middle support module further comprises a central control connecting bracket connected below the second Y-direction main beam, the central control connecting bracket is provided with an air conditioner mounting point, and the central control connecting bracket is provided with a vehicle body bottom plate mounting point at a bottom portion.

5. A method of designing an injection molded instrument panel cross-car beam, characterized by, The method comprises the following steps: According to the Y-direction size of the whole vehicle and the X-direction position of the front door opening, mounting points of the instrument panel cross beam on a vehicle body side wall are agreed with the vehicle body side wall, the structure of the left end plate module and the right end plate module is determined, the structure of the middle support module is determined according to an air conditioner arrangement position planned by a platform, and a second Y-direction main beam at an upper portion of the middle support module needs to take into account Z-direction positions of the left end plate module and the right end plate module, the interface structure of the left end plate module and the right end plate module is determined to match the pipe column mounting support module, the main beam module structure is determined according to mounting points of the second Y-direction main beam and the end plate module, and the injection molding instrument panel cross beam is obtained, as claimed in claim 1.

6. A method of designing an injection molded instrument panel cross-car beam according to claim 5, wherein, The pipe column mounting support module comprises a left-hand pipe column mounting support module connected between the left end plate module and the middle support module, and a right-hand pipe column mounting support module connected between the right end plate module and the middle support module; the left-hand pipe column mounting support module and the right-hand pipe column mounting support module are structurally symmetric; the main beam module structure comprises left and right main beam modules, the left main beam module and the right-hand pipe column mounting support module are used in a group; the right main beam module and the left-hand pipe column mounting support module are used in a group.

7. A method of designing an injection molded instrument panel cross-car beam according to claim 6, wherein, The pipe column mounting support module comprises a first Y-direction main beam, a common design is adopted for one end of the first Y-direction main beam close to the end plate module, and three types of structural differences are set for the other end of the first Y-direction main beam close to the second Y-direction main beam according to different sitting heights, so as to correspond to meet the height requirements of the installed steering column.

8. A method of designing an injection molded instrument panel cross-car beam according to claim 7, wherein, The mounting points of the corresponding instrument panel and electrical component module are solidified, and each vehicle model is used, and the differential design is performed by using a live loading support when it cannot be used.

Images