New energy automobile body torsional mode lifting device

Abstract

The invention discloses a torsion mode lifting device for a new energy automobile body. The torsion mode lifting device comprises a C column body and a torsion mode lifting assembly. The C column body comprises an inner plate and an outer plate, a first cavity is formed in the bottom of the inner plate, a second cavity is formed in the top of the outer plate, the bottom of the inner plate is connected with the top of the outer plate, and the first cavity is communicated with the second cavity; the torsional mode lifting assembly comprises a first connecting plate, a second connecting plate and a honeycomb-shaped supporting part, the first side wall of the first connecting plate is connected with the inner wall of the inner plate, the first side wall of the second connecting plate is connected with the inner wall of the outer plate, and the second side wall of the first connecting plate is connected with the second side wall of the second connecting plate; the honeycomb-shaped supporting part is connected with the bottom of the first connecting plate and the bottom of the second connecting plate, and the honeycomb-shaped supporting part is connected with the inner wall of the inner plate and the inner wall of the outer plate. The inner plate and the outer plate can be supported, the structural strength of the C column body is improved, and the NVH performance of a vehicle is effectively improved.

Description

Technical Field

[0001] This invention relates to the field of automotive technology, and more specifically, to a device for improving the torsional mode of a new energy vehicle body. Background Technology

[0002] With the development of my country's new energy vehicle industry, NVH performance requirements are becoming increasingly stringent. Traditional NVH performance optimization solutions for automobiles are no longer sufficient to meet these higher performance demands. The torsional mode of the vehicle body is a crucial indicator for NVH performance control. The torsional mode has a significant impact on automotive NVH performance, and improving it is important for several reasons: It helps prevent resonance; if the frequency of the torsional mode matches the frequency of external vibrations, it can cause severe resonance in the vehicle body, significantly increasing vibration and noise inside the vehicle. It also reduces interior rattles and squeaks; increasing the torsional stiffness of the vehicle body can effectively reduce friction and collision noise between interior components. When the vehicle body is subjected to external forces, smaller deformation can reduce relative movement and friction between interior parts. Finally, it optimizes vibration transmission; by optimizing the torsional mode, the vibration transmission path can be improved, reducing noise and vibration inside the vehicle.

[0003] However, existing solutions for improving the torsional mode of the vehicle body typically involve optimizing the overlap of sheet metal parts and modifying the structure. Such solutions can only be implemented in the design phase and carry the risk of increased cost, weight, and manufacturing difficulty, which is not conducive to cost and lightweight control.

[0004] Therefore, how to provide a device for improving the torsional mode of a new energy vehicle body has become a technical problem that urgently needs to be solved in this field. Summary of the Invention

[0005] One objective of this invention is to provide a new technology solution for a torsional mode enhancement device for new energy vehicle bodies.

[0006] According to a first aspect of the present invention, a torsional mode enhancement device for a new energy vehicle body is provided, comprising: a C-pillar body and a torsional mode enhancement component;

[0007] The C-pillar body includes an inner panel and an outer panel. The bottom of the inner panel is provided with a first cavity, and the top of the outer panel is provided with a second cavity. The bottom of the inner panel is connected to the top of the outer panel, and the first cavity and the second cavity are in communication.

[0008] The torsional mode boosting assembly comprises a first connecting plate, a second connecting plate and a honeycomb support part, a first side wall of the first connecting plate is connected with an inner wall of the inner plate, a first side wall of the second connecting plate is connected with an inner wall of the outer plate, a second side wall of the first connecting plate is connected with a second side wall of the second connecting plate, and the honeycomb support part is connected with a bottom of the first connecting plate and a bottom of the second connecting plate, and the honeycomb support part is connected with the inner wall of the inner plate and the inner wall of the outer plate respectively.

[0009] Optionally, the new energy vehicle body torsional mode boosting device further comprises a first connecting adhesive and a second connecting adhesive, the first connecting adhesive is uniformly and spacedly arranged on the first side wall of the first connecting plate, and the second connecting adhesive is uniformly and spacedly arranged on the first side wall of the second connecting plate.

[0010] Optionally, the first connecting plate, the second connecting plate and the honeycomb support part are made of high-strength non-metallic material, and the first connecting adhesive and the second connecting adhesive are high-strength structural adhesive.

[0011] Optionally, the first connecting plate comprises a fixed plate and a first arc-shaped plate, a bottom of the fixed plate is connected with a top of the arc-shaped plate, and the first arc-shaped plate is recessed towards the second connecting plate.

[0012] Optionally, the second connecting plate comprises a fixed block and a second arc-shaped plate, a bottom of the fixed block is connected with the honeycomb support part, a top of the fixed block is connected with a bottom of the second arc-shaped plate, the second arc-shaped plate and the fixed block are connected with the first connecting plate, and the second arc-shaped plate is recessed towards the first connecting plate.

[0013] Optionally, the honeycomb support part comprises a plurality of support plates, a plurality of first support rods and a plurality of second support rods, the plurality of support plates are arranged in sequence from top to bottom, a topmost support plate is connected with the bottom of the first connecting plate and the bottom of the second connecting plate.

[0014] The plurality of first support rods and the plurality of second support rods are uniformly and spacedly arranged between adjacent two support plates and located at outer edges of the support plates, the first support rods and the second support rods are connected with two support plates respectively, and cavities are formed between the support plates, the first support rods and the second support rods.

[0015] Optionally, the first support rods and the second support rods are arranged in a cross manner, the first support rods and the second support rods form two triangular structures between an up-down direction, and adjacent two first support rods and second support rods form an isosceles hexagonal structure.

[0016] The beneficial effects of the present application are:

[0017] The present application connects the bottom of the inner plate with the top of the outer plate, and the first cavity and the second cavity are communicated; and the first side wall of the first connecting plate is connected with the inner wall of the inner plate, the first side wall of the second connecting plate is connected with the inner wall of the outer plate, the second side wall of the first connecting plate is connected with the second side wall of the second connecting plate, and the honeycomb-shaped support parts are connected with the bottom of the first connecting plate and the bottom of the second connecting plate, and the honeycomb-shaped support parts are connected with the inner wall of the inner plate and the inner wall of the outer plate respectively. The first connecting plate, the second connecting plate and the honeycomb-shaped support parts are arranged in the first cavity inside the inner plate and the second cavity inside the outer plate, which provides support to the inner plate and the outer plate, improves the structural strength of the C column body, and effectively improves the NVH performance of the vehicle.

[0018] Other features of the present application, and their advantages, will become apparent in the non-limiting detailed description of the exemplary embodiments of the present application, taken in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0019] The accompanying drawings incorporated in and forming a part of the specification, illustrate embodiments of the present application and, together with the description, serve to explain the principles of the application.

[0020] Figure 1 is a structural diagram of the C column body of the present application;

[0021] Figure 2 is a structural diagram of the new energy automobile body torsional modal improvement device of the present application;

[0022] Figure 3 is a structural diagram of the first connecting plate and the second connecting plate of the present application;

[0023] Figure 4 is a structural diagram of the honeycomb-shaped support part of the present application;

[0024] Figure 5 is Figure 4 is an enlarged view of the middle B.

[0025] The symbols in the figure are as follows: 1, C column body; 11, inner plate; 12, outer plate; 13, first cavity; 14, second cavity; 2, first connecting plate; 21, fixed plate; 22, first arc-shaped plate; 3, second connecting plate; 31, fixed block; 32, second arc-shaped plate; 4, honeycomb-shaped support part; 41, support plate; 42, first support rod; 43, second support rod; 44, cavity; 5, first connecting adhesive; 6, second connecting adhesive. DETAILED DESCRIPTION

[0026] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the invention.

[0027] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the invention or its application or use.

[0028] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0029] In all the examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0030] like Figures 1 to 5 As shown, this embodiment of the invention provides a torsional mode enhancement device for a new energy vehicle body, including: a C-pillar body 1 and a torsional mode enhancement component.

[0031] The C-pillar body 1 includes an inner panel 11 and an outer panel 12. The bottom of the inner panel 11 is provided with a first cavity 13, and the top of the outer panel 12 is provided with a second cavity 14. The bottom of the inner panel 11 is connected to the top of the outer panel 12, and the first cavity 13 and the second cavity 14 are connected.

[0032] The torsional mode enhancement assembly includes a first connecting plate 2, a second connecting plate 3, and a honeycomb support 4. The first sidewall of the first connecting plate 2 is connected to the inner wall of the inner plate 11, the first sidewall of the second connecting plate 3 is connected to the inner wall of the outer plate 12, the second sidewall of the first connecting plate 2 is connected to the second sidewall of the second connecting plate 3, and the honeycomb support 4 is connected to the bottom of the first connecting plate 2 and the bottom of the second connecting plate 3. The honeycomb support 4 is also connected to the inner wall of the inner plate 11 and the inner wall of the outer plate 12.

[0033] It should be noted that the inner panel 11 and the outer panel 12 are connected to the vehicle frame and chassis, and the specific settings are not limited here.

[0034] This invention connects the bottom of the inner panel 11 to the top of the outer panel 12, and the first cavity 13 and the second cavity 14 are connected. The first sidewall of the first connecting plate 2 is connected to the inner wall of the inner panel 11, the first sidewall of the second connecting plate 3 is connected to the inner wall of the outer panel 12, and the second sidewall of the first connecting plate 2 is connected to the second sidewall of the second connecting plate 3. The honeycomb-shaped support parts 4 are connected to the bottom of both the first connecting plate 2 and the second connecting plate 3, and are also connected to the inner walls of both the inner panel 11 and the outer panel 12. By installing the first connecting plate 2, the second connecting plate 3, and the honeycomb-shaped support parts 4 in the first cavity 13 inside the inner panel 11 and the second cavity 14 inside the outer panel 12, this invention provides support for the inner panel 11 and the outer panel 12, improves the structural strength of the C-pillar body 1, and effectively enhances the vehicle's NVH performance.

[0035] It should be noted that this solution is built into the first cavity 13 and the second cavity 14 inside the C-pillar body 1 of the vehicle body, without changing the structure and shape of the C-pillar body 1, and does not occupy the space of the car interior layout.

[0036] In one embodiment of the new energy vehicle body torsional mode enhancement device of the present invention, such as Figure 3 As shown, the new energy vehicle body torsional mode enhancement device also includes a first connecting adhesive 5 and a second connecting adhesive 6. The first connecting adhesive 5 is evenly spaced on the first side wall of the first connecting plate 2, and the second connecting adhesive 6 is evenly spaced on the first side wall of the second connecting plate 3.

[0037] Specifically, the first connecting adhesive 5 is connected to the inner wall of the inner plate 11, and the second connecting adhesive 6 is connected to the inner wall of the outer plate 12.

[0038] The present invention provides a first connecting adhesive 5 evenly spaced on the first sidewall of the first connecting plate 2 and a second connecting adhesive 6 evenly spaced on the first sidewall of the second connecting plate 3. This allows the first connecting plate 2 and the second connecting plate 3 to be stably installed on the C-pillar body 1, effectively improving stability and enhancing support for the first cavity 13 and the second cavity 14 within the C-pillar body 1, thus ensuring improved structural strength.

[0039] In one embodiment of the new energy vehicle body torsional mode lifting device of the present invention, the first connecting plate 2, the second connecting plate 3 and the honeycomb support part 4 are made of high-strength non-metallic materials, and the first connecting adhesive 5 and the second connecting adhesive 6 are high-strength structural adhesives.

[0040] This invention achieves high structural strength and low density by making the first connecting plate 2, the second connecting plate 3, and the honeycomb-shaped support part 4 from high-strength non-metallic materials. Furthermore, it uses high-strength structural adhesives for the first connecting colloid 5 and the second connecting colloid 6, thus ensuring their high structural strength.

[0041] In one embodiment of the new energy vehicle body torsional mode enhancement device of the present invention, such as Figure 3 and Figure 4 As shown, the first connecting plate 2 includes a fixed plate 21 and a first arc-shaped plate 22. The bottom of the fixed plate 21 is connected to the top of the arc-shaped plate, and the first arc-shaped plate 22 is recessed toward the second connecting plate 3.

[0042] Specifically, the inner wall of the fixing plate 21 and the inner wall of the first arc plate 22 are connected to the second connecting plate 3, the outer wall of the fixing plate 21 and the outer wall of the first arc plate 22 are connected to the inner plate 11, and the first connecting adhesive 5 is evenly spaced on the first arc plate 22.

[0043] The present invention connects the bottom of the fixing plate 21 to the top of the arc plate and sets the first arc plate 22 recessed toward the second connecting plate 3. By setting the first arc plate 22, the first arc plate 22 can be completely attached to the inner wall of the inner plate 11, which further increases the structural strength of the C-pillar body 1.

[0044] In one embodiment of the new energy vehicle body torsional mode enhancement device of the present invention, such as Figure 3 and Figure 4 As shown, the second connecting plate 3 includes a fixing block 31 and a second arc-shaped plate 32. The bottom of the fixing block 31 is connected to the honeycomb support part 4, and the top of the fixing block 31 is connected to the bottom of the second arc-shaped plate 32. Both the second arc-shaped plate 32 and the fixing block 31 are connected to the first connecting plate 2, and the second arc-shaped plate 32 is recessed towards the first connecting plate 2.

[0045] Specifically, the inner wall of the fixing block 31 and the inner wall of the second arc plate 32 are respectively connected to the inner wall of the first arc plate 22 of the first connecting plate 2 and the inner wall of the fixing plate 21, and the outer wall of the fixing block 31 and the outer wall of the second arc plate 32 are both connected to the inner wall of the outer plate 12.

[0046] The present invention connects the bottom of the fixing block 31 to the honeycomb support part 4, the top of the fixing block 31 to the bottom of the second arc plate 32, and connects the second arc plate 32 and the fixing block 31 to the first connecting plate 2. The second arc plate 32 is recessed towards the first connecting plate 2. By setting the second arc plate 32, the second arc plate 32 can be completely attached to the inner wall of the outer plate 12, which further increases the structural strength of the C-pillar body 1.

[0047] In one embodiment of the new energy vehicle body torsional mode enhancement device of the present invention, such as Figure 4 and Figure 5 As shown, the honeycomb support part 4 includes multiple support plates 41, multiple first support rods 42 and multiple second support rods 43. The multiple support plates 41 are arranged sequentially from top to bottom, and the uppermost support plate 41 is connected to the bottom of the first connecting plate 2 and the bottom of the second connecting plate 3.

[0048] Multiple first support rods 42 and multiple second support rods 43 are evenly spaced between two adjacent support plates 41 and located at the outer edge of the support plate 41. The first support rods 42 and the second support rods 43 are respectively connected to the two support plates 41, and a cavity 44 is formed between the support plate 41, the first support rods 42 and the second support rods 43.

[0049] Specifically, the width and / or length of the support plate 41 decreases from top to bottom to form a cone-like structure, thereby allowing the bottom of the honeycomb support 4 to be stably placed in the outer plate 12. The first support rod 42 and the second support rod 43 are respectively connected to the upper support plate 41 and the lower support plate 41.

[0050] This invention increases the stability of the honeycomb support portion 4 by uniformly arranging multiple first support rods 42 and multiple second support rods 43 between two adjacent support plates 41 and connecting the first support rods 42 and the second support rods 43 to the two support plates 41 respectively. Furthermore, it forms a cavity 44 between the support plates 41, the first support rods 42 and the second support rods 43, thereby ensuring improved structural strength while also meeting the requirements for lightweight vehicle body.

[0051] In one embodiment of the new energy vehicle body torsional mode enhancement device of the present invention, such as Figure 4 and Figure 5 As shown, the first support rod 42 and the second support rod 43 are arranged in an intersecting manner, forming two triangular structures in the vertical direction, and forming an isosceles hexagonal structure between two adjacent first support rods 42 and second support rods 43.

[0052] The present invention arranges the first support rod 42 and the second support rod 43 in an intersecting manner, so that the first support rod 42 and the second support rod 43 form two triangular structures in the vertical direction, and an isosceles hexagonal structure is formed between two adjacent first support rods 42 and second support rods 43. Under the action of the triangular structure and the isosceles hexagonal structure, the stability of the new energy vehicle body torsional mode enhancement device of the present invention is further improved, and the effect of torsional mode optimization is more obvious.

[0053] While specific embodiments of the invention have been described in detail by way of examples, those skilled in the art should understand that the examples are for illustrative purposes only and not intended to limit the scope of the invention. Those skilled in the art should understand that modifications can be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.

Claims

1. A device for improving the torsional mode of a new energy vehicle body, characterized in that, include: C-pillar body and torsional mode enhancement component; The C-pillar body includes an inner panel and an outer panel. The bottom of the inner panel is provided with a first cavity, and the top of the outer panel is provided with a second cavity. The bottom of the inner panel is connected to the top of the outer panel, and the first cavity and the second cavity are in communication. The torsional mode enhancement assembly includes a first connecting plate, a second connecting plate, and honeycomb-shaped support portions. The first sidewall of the first connecting plate is connected to the inner wall of the inner plate, the first sidewall of the second connecting plate is connected to the inner wall of the outer plate, and the second sidewall of the first connecting plate is connected to the second sidewall of the second connecting plate. The honeycomb-shaped support portions are all connected to the bottom of the first connecting plate and the bottom of the second connecting plate, and the honeycomb-shaped support portions are respectively connected to the inner wall of the inner plate and the inner wall of the outer plate.

2. The new energy vehicle body torsional mode enhancement device according to claim 1, characterized in that, The new energy vehicle body torsional mode enhancement device further includes a first connecting adhesive and a second connecting adhesive. The first connecting adhesive is evenly spaced on the first side wall of the first connecting plate, and the second connecting adhesive is evenly spaced on the first side wall of the second connecting plate.

3. The new energy vehicle body torsional mode enhancement device according to claim 2, characterized in that, The first connecting plate, the second connecting plate, and the honeycomb support are made of high-strength non-metallic materials, and the first connecting adhesive and the second connecting adhesive are high-strength structural adhesives.

4. The new energy vehicle body torsional mode enhancement device according to claim 1, characterized in that, The first connecting plate includes a fixed plate and a first arc-shaped plate. The bottom of the fixed plate is connected to the top of the arc-shaped plate, and the first arc-shaped plate is recessed towards the second connecting plate.

5. The new energy vehicle body torsional mode enhancement device according to claim 1, characterized in that, The second connecting plate includes a fixing block and a second arc-shaped plate. The bottom of the fixing block is connected to the honeycomb support, and the top of the fixing block is connected to the bottom of the second arc-shaped plate. Both the second arc-shaped plate and the fixing block are connected to the first connecting plate, and the second arc-shaped plate is recessed towards the first connecting plate.

6. The new energy vehicle body torsional mode enhancement device according to claim 1, characterized in that, The honeycomb-shaped support includes multiple support plates, multiple first support rods, and multiple second support rods. The multiple support plates are arranged sequentially from top to bottom, and the uppermost support plate is connected to the bottom of the first connecting plate and the bottom of the second connecting plate. Multiple first support rods and multiple second support rods are evenly spaced between two adjacent support plates and located at the outer edge of the support plates. The first support rods and the second support rods are respectively connected to the two support plates, and a cavity is formed between the support plates, the first support rods and the second support rods.

7. The new energy vehicle body torsional mode enhancement device according to claim 6, characterized in that, The first support rod and the second support rod are arranged in a cross configuration, forming two triangular structures in the vertical direction, and forming an isosceles hexagonal structure between two adjacent first support rods and second support rods.

Images