A vehicle body pillar and a vehicle

Abstract

The embodiment of the application relates to the technical field of vehicles, and discloses a vehicle body stand column and a vehicle, the vehicle body stand column comprising: an outer plate; a reinforcing part connected with the outer plate and forming a first cavity with the outer plate; and an inner plate welded with the reinforcing part on a side away from the outer plate and forming a second cavity with the reinforcing part; wherein the reinforcing part is provided with at least one connecting hole, the connecting hole is communicated with the first cavity and the second cavity, and when filling barrier glue, the barrier glue can pass through the connecting hole and enter the smaller second cavity, so that the barrier effect of the vehicle body stand column on noise is effectively improved.

Description

Technical Field

[0001] This application relates to the field of vehicle technology, and more particularly to a vehicle body pillar and a vehicle. Background Technology

[0002] Body pillars are vertical support components of the vehicle body frame. They not only provide support but also need to have a certain noise reduction capability. They are an important part of the vehicle's NVH (noise, vibration, and harshness) control system.

[0003] Taking the C-pillar as an example, as the pillar structure connecting the roof and the door, the internal cavity of the C-pillar is a key path for noise to be transmitted from the chassis or door to the ears of rear passengers. Especially at high speeds or in complex road conditions, noise transmission in the C-pillar area can significantly affect the riding experience of rear passengers.

[0004] In related technologies, vehicle body pillars typically include an outer side panel, an inner side panel, and reinforcing components. The outer side panel, inner side panel, and reinforcing components are welded together to form a closed cavity. To block noise, designers will place barrier adhesive inside the closed cavity to reduce noise.

[0005] In practice, some areas of the enclosed cavity cannot be effectively filled with barrier adhesive, which affects the noise reduction effect of the vehicle body pillars. Utility Model Content

[0006] In view of this, the present application provides a vehicle body pillar and a vehicle to solve the problem that the noise reduction effect of the existing vehicle body pillar is affected because the closed cavity of the pillar cannot be effectively filled with barrier adhesive.

[0007] To achieve the above objectives, the technical solution of this application embodiment is implemented as follows:

[0008] In a first aspect, embodiments of this application provide a vehicle body pillar, including:

[0009] outer panel;

[0010] A reinforcing member is connected to the outer plate and forms a first cavity between the reinforcing member and the outer plate;

[0011] The inner plate is connected to the side of the reinforcing member opposite to the outer plate, and forms a second cavity between the inner plate and the reinforcing member;

[0012] The reinforcing member is provided with at least one connecting hole, which connects the first cavity and the second cavity.

[0013] The vehicle body pillar provided in this application embodiment has an outer panel, an inner panel, and a reinforcing member. The two opposite sides of the reinforcing member are connected to the inner panel and the outer panel, respectively. A first cavity is formed between the reinforcing member and the outer panel, and a second cavity is formed between the reinforcing member and the inner panel. The connecting hole on the reinforcing member can connect the first cavity and the second cavity. When filling with barrier adhesive, the barrier adhesive can flow through the connecting hole between the first cavity and the second cavity, thereby allowing the barrier adhesive to fill the first cavity and the second cavity, reducing the unfillable area in the closed cavity of the vehicle body pillar, thereby effectively improving the vehicle body pillar's ability to isolate external noise and significantly improving the NVH (Noise, Vibration, Harshness) performance of the vehicle body pillar.

[0014] In one possible implementation of this application, the connection hole is located on the side of the reinforcement facing the top of the vehicle.

[0015] In the vehicle body pillar provided in this application embodiment, the connecting hole is located on the side of the reinforcing member facing the top of the vehicle. When the rear passenger is sitting in the seat, the connecting hole is located in the area close to the rear passenger's ear, which can ensure that the barrier adhesive can fill the corresponding area of ​​the first cavity and the second cavity, thereby reducing the noise transmitted from outside the vehicle to the passenger's ear area through the vehicle body pillar.

[0016] In one possible implementation of this application, the connecting hole is a rectangular hole.

[0017] In the vehicle body pillar provided in this application embodiment, the connecting hole is a rectangular hole. The rectangular hole has a high degree of compatibility with the shape of the reinforcing member, which can increase the flow area within a suitable range, improve the smoothness of the flow of the barrier adhesive, and the hole wall is straight, making it less likely to leave air bubbles.

[0018] In one possible implementation of this application, the reinforcing member is provided with weight-reducing holes.

[0019] By setting weight-reducing holes on the reinforcing parts, the weight of the reinforcing parts can be reduced, which helps to reduce the overall weight of the vehicle and improve the vehicle's economy and overall performance.

[0020] In one possible implementation of this application, the weight reduction hole is an oblong hole.

[0021] During vehicle operation, reinforcement components are subjected to various stresses, which are often unevenly distributed. By designing the weight-reducing holes as elongated ovals, the shape of the holes can better adapt to this stress distribution, resulting in a more uniform stress distribution on the reinforcement component, reducing stress concentration, and thus improving the load-bearing capacity and service life of the reinforcement component.

[0022] In one possible implementation of this application, the reinforcing member is provided with electrophoresis holes.

[0023] The outer panel, reinforcing member, and inner panel of the vehicle body pillar form a three-layer structure. The reinforcing member is prone to electric field shielding during electrophoretic coating, resulting in a lower electrophoretic coating thickness in some areas, or even no electrophoresis, which affects the anti-corrosion performance of the vehicle body. Electrophoretic holes can eliminate electric field shielding and increase the coating effect of electrophoretic liquid.

[0024] In one possible implementation of this application, the reinforcing member has at least one electrophoresis hole at its middle part and one end.

[0025] At least one electrophoresis hole is provided in the middle and one end of the reinforcing member to avoid local stagnation of electrophoretic liquid and to improve the flow rate of electrophoretic liquid.

[0026] In one possible implementation of this application, the reinforcing member is provided with reinforcing ribs, which are adjacent to the connecting holes.

[0027] Reinforcing ribs are installed in the area near the connection hole. These ribs can increase the strength of the area where the connection hole is located, thereby ensuring the strength of the reinforcing component.

[0028] In one possible implementation of this application, a barrier adhesive block is also included, which is partially located in the second cavity and partially extends into the first cavity through a connecting hole.

[0029] During production, after the barrier rubber block enters the second cavity, it can enter the smaller first cavity through the connecting hole, thereby effectively improving the noise reduction performance of the vehicle body pillar.

[0030] Secondly, embodiments of this application provide a vehicle, including a vehicle body and a body pillar as described in any of the first aspects, wherein the body pillar is disposed on the vehicle body.

[0031] The vehicle body pillars are installed in the rear passenger seating area. Each pillar consists of an outer panel, an inner panel, and reinforcing members. The reinforcing members connect to the inner and outer panels on opposite sides, forming a first cavity between the reinforcing member and the outer panel, and a second cavity between the reinforcing member and the inner panel. Connecting holes on the reinforcing members connect the first and second cavities. When barrier adhesive is applied, it flows through these connecting holes between the first and second cavities, allowing it to fill both cavities and reducing unfillable areas within the pillar's enclosed cavities. This effectively improves the pillar's ability to isolate external noise, significantly enhancing its NVH (Noise, Vibration, Harshness) performance, and consequently improving the vehicle's overall NVH performance. Attached Figure Description

[0032] Figure 1 A schematic diagram of the transmission routes of wind noise and tire noise of a vehicle provided in an embodiment of this application;

[0033] Figure 2 This is a schematic diagram showing the arrangement of the barrier adhesive in a vehicle according to an embodiment of this application;

[0034] Figure 3 A schematic diagram of the C-pillar structure of an existing vehicle;

[0035] Figure 4 This is a structural schematic diagram of the reinforcing member in the vehicle body pillar provided in an embodiment of this application;

[0036] Figure 5 A schematic diagram of the structure of the vehicle body pillar provided in the embodiments of this application. Figure 1 ;

[0037] Figure 6 A schematic diagram of the structure of the vehicle body pillar provided in the embodiments of this application. Figure 2 .

[0038] Figure label:

[0039] 10-Car body;

[0040] 100-outer panel;

[0041] 200 - Reinforcing component;

[0042] 210 - Connection hole;

[0043] 220 - Weight reduction hole;

[0044] 230-Electrophoresis well;

[0045] 300-Inner panel;

[0046] 400 - First cavity;

[0047] 500 - Second cavity;

[0048] 600 - Barrier Adhesive Block. Detailed Implementation

[0049] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the specific technical solutions of this application will be further described in detail below with reference to the accompanying drawings of the embodiments of this application. The following embodiments are used to illustrate this application, but are not intended to limit the scope of this application.

[0050] In the embodiments of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of this application, unless otherwise stated, "multiple" means two or more.

[0051] Furthermore, in the embodiments of this application, directional terms such as "upper," "lower," "left," and "right" are defined relative to the positions in which the components are schematically placed in the accompanying drawings. It should be understood that these directional terms are relative concepts, used for relative description and clarification, and can change accordingly depending on the position of the components in the accompanying drawings.

[0052] In the embodiments of this application, unless otherwise explicitly specified and limited, the term "connection" should be interpreted broadly. For example, "connection" can mean a fixed connection, a detachable connection, or an integral part; it can mean a direct connection or an indirect connection through an intermediate medium.

[0053] In embodiments of this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0054] In the embodiments of this application, the terms "exemplary" or "for example" are used to indicate that something is an example, illustration, or description. Any embodiment or design that is described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design. Specifically, the use of the terms "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0055] This application provides a vehicle. It should be noted that the vehicle in this application can refer to large vehicles, small vehicles, special-purpose vehicles, etc. For example, according to vehicle type, the vehicle in this application can be a sedan, an off-road vehicle, a multi-purpose vehicle (MPV), or other types of vehicles. Regarding vehicles, such as... Figure 1 As shown, it generally includes a vehicle body 10, on which wheels, a power source, and a transmission system are installed between the wheels and the power source. The transmission system can transmit the power provided by the power source to the wheels, causing the wheels to rotate, thereby driving the vehicle to move.

[0056] It should be noted that the type of power source of the vehicle is not limited in the embodiments of this application. For example, for fuel vehicles, the power source can refer to fuel engines such as gasoline engines and diesel engines; for electric vehicles, the power source can refer to electric motors; for hybrid vehicles, the power source can refer to engines or electric motors; for vehicles powered by other means, the power source can refer to devices that generate power.

[0057] The vehicle body 10 also features body pillars, which are vertical support components of the vehicle frame. Body pillars can be divided into A-pillars, B-pillars, and C-pillars, etc. Body pillars need to have a certain noise reduction function and are an important component for controlling interior noise.

[0058] Taking the C-pillar as an example, during vehicle operation, if... Figure 1 As shown, noise is transmitted towards the rear passenger area mainly through the following two paths:

[0059] The X direction is the direction of the front of the car. The dashed arrow shows the transmission path of tire noise, and the solid arrow shows the transmission path of wind noise. Both wind noise and tire noise are easily transmitted to the ears of rear passengers through the body pillars, affecting the comfort of rear passengers.

[0060] A common approach to this is to apply sound-blocking adhesive to the corresponding areas to reduce noise, such as... Figure 2 Barrier adhesive needs to be applied to both areas A and B.

[0061] In the area B where the vehicle body pillars are located, the noise experienced by rear passengers is often increased because some areas cannot be effectively filled with barrier adhesive.

[0062] Specifically, such as Figure 3 As shown, a vehicle body pillar typically includes an outer panel 100, a reinforcing member 200, and an inner panel 300 arranged sequentially from the outside to the inside. The two opposite sides of the reinforcing member 200 are connected to the outer panel 100 and the inner panel 300, respectively, for example, through common methods such as welding. A second cavity 500 is formed between the reinforcing member 200 and the inner panel 300, and a first cavity 400 is formed between the reinforcing member 200 and the outer panel 100. The first cavity 400 has a smaller cross-sectional area.

[0063] When applying the barrier adhesive, it can only be placed in the second cavity 500. Due to the limitation of the cross-sectional area of ​​the first cavity 400, the barrier adhesive cannot be placed in the first cavity 400, which results in the sound not being blocked in the first cavity 400. Since the vehicle body pillar is close to the ears of the rear passengers, this will seriously affect the comfort of the rear passengers.

[0064] Based on this, please see Figure 4 and Figure 5As shown in the illustration, this application embodiment also provides a vehicle body pillar, which is connected to the vehicle body 10 by common methods such as welding. It is understood that the vehicle body pillar in this application embodiment specifically refers to the C-pillar, but it can also be applied to other pillars, such as the A-pillar, B-pillar, etc. For ease of understanding, the following description will primarily focus on its application as a C-pillar, where the vehicle body pillar is located in region B of the vehicle body 10.

[0065] The vehicle body pillar provided in this embodiment includes an outer panel 100, an inner panel 300, and a reinforcing plate. One side of the reinforcing plate is connected to the inner panel 300 to form a second cavity 500. The side of the reinforcing member 200 away from the inner panel 300 is connected to the outer panel 100 to form a first cavity 400.

[0066] The reinforcing member 200 is provided with at least one connecting hole 210, which connects the first cavity 400 and the second cavity 500.

[0067] Specifically, one or more connecting holes 210 can be provided, and the specific configuration can be adjusted according to the actual situation. After the connecting holes 210 are provided on the reinforcing member 200, the first cavity 400 and the second cavity 500 are connected through the connecting holes 210. When the barrier adhesive is injected, it is injected through the larger second cavity 500, and then diffuses into the second cavity 500 through the connecting holes 210. After curing, the barrier adhesive fills the first cavity 400 and the second cavity 500, which can reduce the unfillable areas in the closed cavities of the vehicle body pillar, thereby effectively improving the vehicle body pillar's ability to isolate external noise and significantly improving the NVH (Noise, Vibration, Harshness) performance of the vehicle body pillar, thus improving the vehicle's NVH performance.

[0068] Furthermore, in some embodiments of this application, the connection hole 210 is located on the side of the reinforcement 200 facing the top of the vehicle.

[0069] Specifically, in area B, the connecting hole 210 is located on the side of the reinforcing member 200 facing the top of the vehicle, which is relatively close to the ear area of ​​the rear passenger. This means that the connecting hole 210 is located close to the ear area of ​​the rear passenger. This ensures that the barrier adhesive can effectively fill the first cavity 400, at least in the area close to the passenger's ear area. This can reduce the noise transmitted from outside the vehicle through the vehicle body pillars to the passenger's ear area, such as wheel noise and wind noise, and can effectively improve the comfort of the rear passenger.

[0070] The connecting hole 210 can be set to any shape, as long as it can smoothly connect the first cavity 400 and the second cavity 500 to allow the barrier adhesive to pass through.

[0071] For example, the connecting hole 210 is a rectangular hole.

[0072] Specifically, such as Figure 1 As shown, the upper end of the reinforcing member 200 (the end facing the top of the vehicle) has a rectangular structure, and the connecting hole 210 is mainly located in this area. When the connecting hole 210 is rectangular,

[0073] When the connecting hole 210 is a rectangular hole, the rectangular hole has a high degree of fit with the shape of the reinforcing member 200, which can increase the flow area within a suitable range, improve the smoothness of the flow of the barrier adhesive, and the hole wall is straight, making it less likely to leave air bubbles.

[0074] In addition, the reinforcing part 200 is a sheet metal part, which is usually manufactured by cold stamping or hot forming process. During processing, the rectangular hole can be directly formed by the punch of the stamping die (the punch is rectangular and consistent with the shape of the hole). The stretching and deformation of the sheet metal during the forming process is more uniform, which helps to reduce the processing difficulty.

[0075] Furthermore, the four corners of the rectangular hole can be rounded to avoid the risk of stress concentration at the four corners and reduce the impact on the strength of the reinforcing member 200.

[0076] For example, the connecting hole 210 is a round hole.

[0077] For example, the connecting hole 210 is an elliptical hole.

[0078] Furthermore, in some embodiments of this application, the reinforcing member 200 is provided with reinforcing ribs, which are adjacent to the connecting hole 210.

[0079] For example, the reinforcing rib is a raised rib surrounding the connection hole 210.

[0080] Understandably, the reinforcing ribs can also be other structures, as long as they can effectively improve the strength of the reinforcing component 200.

[0081] A reinforcing rib is provided in the area near the connecting hole 210. The reinforcing rib can improve the strength of the area where the connecting hole 210 is located, thereby ensuring the strength of the reinforcing member 200 and preventing the strength of the reinforcing member 200 from dropping too much due to the addition of the connecting hole 210.

[0082] Alternatively, reinforcing ribs can be provided at other locations on the reinforcing member 200 to ensure the overall strength of the reinforcing member 200.

[0083] Furthermore, in some embodiments of this application, the reinforcing member 200 is provided with weight reduction holes 220.

[0084] The size, number, and location of the weight-reducing holes 220 can be adjusted according to the actual situation, so as not to affect the normal use of the reinforcing member 200. After adding weight-reducing holes 220, the amount of metal material required for the preparation of the reinforcing member 200 can be reduced without affecting the function of the reinforcing member 200, thereby reducing the weight and production cost of the reinforcing member 200.

[0085] Furthermore, the weight reduction hole 220 is an oblong hole.

[0086] Specifically, the elongated hole includes two parallel sides, with an arc-shaped connecting edge at each end of the side, and the two ends of the connecting edge are connected to the two sides respectively.

[0087] The reinforcing member 200 is subjected to various stresses during vehicle operation, and the stress distribution is often uneven. The shape of the elongated hole can better adapt to this stress distribution, making the stress more evenly distributed on the reinforcing member 200, reducing stress concentration, and thus improving the load-bearing capacity and service life of the reinforcing member 200.

[0088] Meanwhile, when a vehicle operates under different ambient temperatures, the body material will deform to some extent due to thermal expansion and contraction. The elongated hole can provide a certain amount of expansion and contraction space for the reinforcement 200, reducing stress and deformation caused by temperature changes, avoiding structural damage, and improving the reliability and durability of the reinforcement 200.

[0089] It is understood that this is just an example of the shape of the weight reduction hole 220. The weight reduction hole 220 can also be set to any structure such as round, elliptical or square, and its size and shape can be adjusted according to the actual situation.

[0090] Furthermore, in some embodiments of this application, the reinforcing member 200 is provided with an electrophoresis hole 230.

[0091] The vehicle body pillars consist of an outer panel 100, a reinforcing member 200, and an inner panel 300 arranged sequentially from the outside to the inside. These three components are typically sheet metal structural parts, which are prone to generating electric field shielding during electrophoretic coating. This can result in lower electrophoretic coating thickness in some areas, or even no electrophoresis at all, affecting the vehicle body's corrosion resistance. However, by setting electrophoresis holes 230, the electric field shielding can be eliminated and the flowability of the electrophoretic liquid can be increased, thereby improving the electrophoretic coating effect.

[0092] Of course, the electrophoresis aperture 230 can also be set as an oblong aperture or other shapes of aperture, which can be adjusted according to the actual situation.

[0093] Furthermore, the reinforcing member 200 is provided with at least one electrophoresis hole 230 at its middle part and one end.

[0094] At least one electrophoresis hole 230 is provided in the middle and one end of the reinforcing member 200 to avoid local retention of electrophoretic liquid and improve the flow rate of electrophoretic liquid.

[0095] Of course, the electrophoresis aperture 230 can be set in other areas besides the middle and one end of the reinforcing member 200. The specific location can be adjusted according to the electrophoresis requirements and the strength requirements of the reinforcing member 200.

[0096] In addition, positioning holes can be provided on the reinforcing member 200. The positioning holes can be used for positioning during the processing, such as when welding the reinforcing member 200 to the inner plate 300 and the outer plate 100, so as to avoid the reinforcing member 200 from being skewed during the processing.

[0097] The positioning holes are usually provided in two or more to prevent the reinforcement 200 from rotating.

[0098] The actual position and shape of the positioning holes can be adjusted according to the actual situation, as long as they are easy to position during processing and do not significantly affect the strength of the reinforcing part 200.

[0099] Furthermore, in some embodiments of this application, please refer to Figure 4 , Figure 5 and Figure 6 As shown, the vehicle body pillar also includes a barrier rubber block 600, part of which is located in the second cavity 500 and part of which extends into the first cavity 400 through the connecting hole 210.

[0100] Specifically, the barrier adhesive block 600 can be of a type with expansion properties, such as having a foam layer.

[0101] During assembly, the reinforcing component 200 is first welded to the outer panel 100 and the inner panel 300. Then, the barrier adhesive block 600 is snapped onto the inner panel 300. After baking in the painting workshop, the barrier adhesive block 600 expands and fills the first cavity 400 and the second cavity 500. This filling of the barrier adhesive in the first cavity 400 and the second cavity 500 can isolate the transmission of noise, thereby improving the NVH performance of the whole vehicle and the comfort of the rear passengers.

[0102] The sequence numbers of the embodiments in this application are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments. The above are merely preferred embodiments of this application and do not limit the patent scope of this application. Any equivalent structural or procedural transformations made based on the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A vehicle body pillar, characterized in that, include: outer panel(100); A reinforcing member (200) is connected to the outer plate (100) and forms a first cavity (400) between the reinforcing member (200) and the outer plate (100); Inner plate (300), the inner plate (300) is connected to the side of the reinforcing member (200) away from the outer plate (100), and a second cavity (500) is formed between the inner plate (300) and the reinforcing member (200); The reinforcing member (200) is provided with at least one connecting hole (210), which connects the first cavity (400) and the second cavity (500). The reinforcing member (200) is provided with reinforcing ribs, which are adjacent to the connecting hole (210).

2. The vehicle body pillar according to claim 1, characterized in that, The connection hole (210) is located on the side of the reinforcement (200) facing the top of the vehicle.

3. The vehicle body pillar according to claim 1, characterized in that, The connecting hole (210) is a rectangular hole.

4. The vehicle body pillar according to claim 1, characterized in that, The reinforcing member (200) is provided with weight reduction holes (220).

5. The vehicle body pillar according to claim 4, characterized in that, The weight reduction hole (220) is an oblong hole.

6. The vehicle body pillar according to claim 1, characterized in that, The reinforcing member (200) is provided with electrophoresis holes (230).

7. The vehicle body pillar according to claim 6, characterized in that, At least one electrophoresis hole (230) is provided at the middle and one end of the reinforcing member (200).

8. The vehicle body pillar according to any one of claims 1-7, characterized in that, It also includes a barrier adhesive block (600), which is partially located in the second cavity (500) and partially extends through the connecting hole (210) into the first cavity (400).

9. A vehicle, characterized in that, It includes a vehicle body (10) and a vehicle body pillar as described in any one of claims 1-8, the vehicle body pillar being disposed on the vehicle body (10).

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