Cavity blocking structure, vehicle body structure, and vehicle

Abstract

This disclosure relates to a cavity blocking structure, a vehicle body structure, and a vehicle. The cavity blocking structure is connected within a cavity formed by the A-pillar and the door sill of the vehicle body. The cavity blocking structure includes a body and a cover layer. A through hole is formed on the body, extending along its thickness direction. The cover layer covers the through hole and is constructed to be puncturable. In actual use, the cover layer can be used in an unpunctured state or in a punctured state. For example, for vehicles without a sunroof, since no sunroof drain pipe passes through the through hole, there is no need to puncture the cover layer, and the cover layer can achieve a good seal for the through hole. For vehicles with a sunroof, the sunroof drain pipe can be inserted into the through hole by puncturing the cover layer. In this case, the unpunctured cover layer located between the through hole and the sunroof drain pipe can still provide a certain sealing effect, thereby improving the sealing performance of the cavity and the NVH performance of the vehicle.

Description

Technical Field

[0001] This disclosure relates to the field of vehicle technology, specifically to a cavity blocking structure, a vehicle body structure, and a vehicle. Background Technology

[0002] In vehicle body structures, the cavity between the A-pillar and the door sill typically houses components such as sunroof drain pipes. To facilitate the passage of these pipes through the cavity, a sunroof drain pipe through-hole is provided in the cavity blocking structure. In related technologies, this through-hole is generally covered with a non-sealed gasket. However, this method has significant drawbacks. Due to the relatively large gap between the gasket and the through-hole, external noise can more easily penetrate the vehicle's interior, reducing the vehicle's NVH (Noise, Vibration, and Harshness) performance and sealing effectiveness. Utility Model Content

[0003] The purpose of this disclosure is to provide a cavity blocking structure, a vehicle body structure, and a vehicle to solve the technical problems existing in the related art.

[0004] To achieve the above objectives, the first aspect of this disclosure provides a cavity blocking structure connected within a cavity formed by the A-pillar and the door sill of a vehicle body. The cavity blocking structure includes a body and a covering layer integrally disposed with the body. A through hole is formed on the body, extending along its own thickness direction. The covering layer covers the through hole and is configured to be puncturable.

[0005] Optionally, the covering layer is configured to abut against the outer wall of the skylight water pipe when it passes through.

[0006] Optionally, the covering layer is made of solid plastic; or,

[0007] The covering layer is made of an elastic material.

[0008] Optionally, the covering layer is made of nylon; or,

[0009] The covering layer is made of butyl rubber.

[0010] Optionally, the cover layer includes a first part and a second part that are connected to each other, the second part being disposed around the outer periphery of the first part, and an annular opening groove being formed on the second part along the circumferential direction of the second part.

[0011] Optionally, the thickness D of the bottom wall of the annular opening groove is 0.1mm to 0.5mm.

[0012] Optionally, the covering layer may also have a puncture auxiliary hole extending through its own thickness direction, the puncture auxiliary hole being located within the annular opening groove.

[0013] Optionally, the cavity blocking structure further includes a reinforcing connecting rib, one end of which is connected to the body and the other end of which is connected to the edge of the covering layer.

[0014] A second aspect of this disclosure provides a vehicle body structure including a sunroof water pipe, a vehicle body A-pillar, a door sill, and a cavity blocking structure as described above. The vehicle body A-pillar and the door sill together form a cavity structure having the cavity inside. The cavity blocking structure is used to block an opening formed on the door sill. The sunroof water pipe is fixed to the vehicle body A-pillar and pierces the covering layer and passes through the through hole of the cavity blocking structure.

[0015] A third aspect of this disclosure provides a vehicle including the cavity blocking structure as described above or the body structure as described above.

[0016] Through the above technical solution, the aforementioned covering layer can be used in either an unpunctured or punctured state during actual use. For example, for vehicles without a sunroof, since no sunroof water pipe passes through the through hole, there is no need to puncture the covering layer, thus achieving a good seal for the through hole. For vehicles with a sunroof, the sunroof water pipe can be inserted into the through hole by puncturing the covering layer. In this case, the unpunctured covering layer between the through hole and the sunroof water pipe can still provide a certain sealing effect, thereby improving the sealing performance of the cavity and the vehicle's NVH (Noise, Vibration, Harshness) performance.

[0017] Other features and advantages of this disclosure will be described in detail in the following detailed description section. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the present disclosure and form part of the specification. They are used together with the following detailed description to explain the present disclosure, but do not constitute a limitation thereof. In the drawings:

[0019] Figure 1 This is a top view of a cavity blocking structure provided in an exemplary embodiment of the present disclosure, wherein a covering layer covers the through hole;

[0020] Figure 2 It is along Figure 1The cross-sectional view is taken by line AA, showing the overlying layer in a punctured state; the dashed line indicates the state when the overlying layer is not punctured.

[0021] Figure 3 It is along Figure 1 A cross-sectional view cut along the BB line;

[0022] Figure 4 This is a cross-sectional view of the cavity blocking structure provided in another exemplary embodiment of the present disclosure, in which the covering layer is punctured; wherein, the dashed line shows the state when the covering layer is not punctured;

[0023] Figure 5 This is an exploded view of a vehicle body structure provided in an exemplary embodiment of this disclosure.

[0024] Explanation of reference numerals in the attached figures

[0025] 1-Cavity blocking structure; 10-Body; 11-Covering layer; 111-First part; 112-Second part; 1120-Annular opening groove; 1121-Piercing auxiliary hole; 12-Through hole; 13-Reinforcing connecting rib; 30-Sunroof water pipe; 40-Body A-pillar; 50-Sill. Detailed Implementation

[0026] The specific embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this disclosure.

[0027] In this disclosure, unless otherwise stated, directional terms such as "up," "down," "left," and "right" are used to indicate orientation or positional relationships only for the convenience of describing this disclosure and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or a specific orientation structure and operation, and therefore should not be construed as a limitation of this disclosure. The terms "inner" and "outer" refer to the inner and outer contours of the corresponding structures.

[0028] Additionally, it should be noted that the terms used, such as "first" and "second," are used to distinguish one element from another and do not indicate sequence or importance. Furthermore, in the description referring to the accompanying drawings, the same reference numerals in different drawings denote the same element.

[0029] In the description of this disclosure, it should also be noted that, unless otherwise expressly specified and limited, the terms “set up,” “connect,” “link,” and “install” should be interpreted broadly, for example, as a fixed connection, a detachable connection, or an integral connection.

[0030] The connection can be direct or indirect, via an intermediate medium. Those skilled in the art can understand the specific meaning of the terms used in this disclosure based on the specific circumstances.

[0031] refer to Figures 1 to 5 As shown, the first aspect of this disclosure provides a cavity blocking structure 1 connected within a cavity (not shown) formed by the A-pillar 40 and the door sill 50 of the vehicle body. The cavity blocking structure 1 includes a body 10 and a covering layer 11 integrally disposed with the body 10. A through hole 12 is formed on the body 10 and extends along its own thickness direction. The covering layer 11 covers the through hole 12 and is configured to be puncturable.

[0032] Through the above technical solution, the aforementioned cover layer 11 can be used in an unpunctured state or in a punctured state during actual use. For example, for models without a sunroof, since no sunroof water pipe 30 passes through the through hole 12, there is no need to puncture the cover layer 11. In this way, the cover layer 11 can achieve a good seal for the through hole 12.

[0033] For vehicles with sunroofs, the sunroof water pipe 30 can be inserted into the through hole 12 by piercing the cover layer 11. At this time, the unpierced cover layer 11 between the through hole 12 and the sunroof water pipe 30 can still play a certain sealing role, which can also improve the sealing of the cavity and the NVH (Noise, Vibration, Harshness) performance of the vehicle, creating a quieter and more comfortable driving environment for the occupants.

[0034] To further improve the sealing performance and NVH (Noise, Vibration, and Harshness) performance of the cavity, in this disclosure, the cover layer 11 can be configured to abut against the outer wall of the skylight water pipe 30 when it passes through. Thus, when the skylight water pipe 30 punctures the cover layer 11, the cover layer 11 located around the outer wall of the skylight water pipe 30 can still abut against the outer wall of the skylight water pipe 30, forming a sealed contact. This further reduces the gap between the through hole 12 and the outer wall of the skylight water pipe 30, thereby preventing or reducing the ingress of outside air, noise, dust, rainwater, etc.

[0035] This disclosure does not limit the specific material used to manufacture the covering layer 11, as long as it allows the covering layer 11 located around the outer wall of the sunroof water pipe 30 to abut against the outer wall of the sunroof water pipe 30 when the sunroof water pipe 30 punctures the covering layer 11. For example, in one embodiment provided by this disclosure, the covering layer 11 can be made of solid plastic. Solid plastic generally refers to plastic materials that are solid at room temperature. For vehicles without a sunroof, when the covering layer 11 is made of solid plastic, it has a certain degree of hardness and rigidity, which can better maintain its shape and is not easily deformed by external environmental factors (such as changes in temperature and humidity) or slight external forces. This allows the covering layer 11 to fit tightly against the body 10 when covering the through hole 12, forming a stable sealing structure, effectively preventing external air, dust and moisture from entering the cavity surrounded by the A-pillar 40 and the sill 50 of the vehicle body, further improving the sealing performance of the cavity.

[0036] For vehicles with sunroofs, after the sunroof hose 30 punctures the solid plastic cover layer 11, due to the properties of solid plastic, the cover layer 11 will not easily deform or tear around the puncture site, and can maintain a relatively regular shape. In this way, the part of the cover layer 11 that is not punctured between the through hole 12 and the sunroof hose 30 can still maintain close contact with the sunroof hose 30 and the edge of the through hole 12 due to its rigidity, and continue to play a sealing role, reducing air and noise leakage, thereby improving the vehicle's NVH performance.

[0037] The solid plastics mentioned above generally refer to plastic materials that are solid at room temperature, and may include, but are not limited to, thermosetting plastics, thermoplastic plastics, engineering plastics, etc.

[0038] Alternatively, for example, in one embodiment provided in this disclosure, the cover layer 11 may also be made of an elastic material. When the cover layer 11 is made of an elastic material, it has good elasticity and flexibility. In sunroof-less vehicles, the elastic cover layer 11 can better adapt to changes in the shape and size of the through hole 12. Even if there is some unevenness or slight dimensional deviation at the edge of the through hole 12, the elastic cover layer 11 can still fit tightly against the edge of the through hole 12 through its own elastic deformation, achieving a more reliable seal.

[0039] In models with sunroofs, when the sunroof water pipe 30 passes through the elastic covering layer 11, such as Figure 4 As shown, the elastic covering layer 11 can tightly wrap around the outer wall of the sunroof water pipe 30. Due to the deformability of the elastic material, the covering layer 11 will automatically adjust according to the shape and size of the sunroof water pipe 30, forming a tight contact with the outer wall of the sunroof water pipe 30, further reducing the gap between the through hole 12 and the sunroof water pipe 30, significantly enhancing the sealing effect, effectively preventing the intrusion of outside air and noise, and improving the vehicle's NVH performance.

[0040] The elastic materials mentioned above may include, but are not limited to, rubber-based elastic materials, thermoplastic elastomers, and polyurethane elastomers.

[0041] In embodiments where the cover layer 11 is made of a solid plastic, in one exemplary embodiment provided in this disclosure, the cover layer 11 is made of nylon, such as PA6 (polyamide 6). Alternatively, in other exemplary embodiments provided in this disclosure, the cover layer 11 may also be made of PC-ABS (polycarbonate), PE (polyethylene), etc.

[0042] In embodiments where the cover layer 11 is made of an elastic material, in one exemplary embodiment provided in this disclosure, the cover layer 11 may be made of butyl rubber. Alternatively, in other exemplary embodiments provided in this disclosure, the cover layer 11 may also be made of natural rubber, synthetic rubber (such as butadiene rubber), SBS (styrene-butadiene-styrene block copolymer), ethylene propylene diene monomer (EPDM), etc.

[0043] During the process of puncturing the aforementioned covering layer 11 through the skylight water pipe 30, if the covering layer 11 is too strong, the puncture process may require considerable force, which could damage the covering layer 11 or the skylight water pipe 30, or even affect the sealing of the cavity. Therefore, in this disclosure, if... Figure 2 , Figure 3 As shown, the cover layer 11 includes a first part 111 and a second part 112 that are interconnected. The second part 112 is disposed around the outer periphery of the first part 111. Along the circumferential direction of the second part 112, an annular opening groove 1120 is formed on the second part 112. Due to the presence of the annular opening groove 1120, when the sunroof water pipe 30 punctures the cover layer 11, it is more likely to break along the position of the annular opening groove 1120, making the breaking process of the cover layer 11 more controllable. This helps to ensure that the unpunctured portion of the cover layer 11 located between the through hole 12 and the sunroof water pipe 30 can maintain a relatively regular shape and structure, allowing the unpunctured cover layer 11 to better fit with the sunroof water pipe 30 and the edge of the through hole 12, further reducing the gap, thereby more effectively preventing the leakage of outside air and noise, and improving the stability of the vehicle's NVH performance.

[0044] In addition, such as Figure 2As shown, for models without a sunroof, under normal use, the portion outside the annular opening groove 1120 can still maintain good strength and integrity. Only when subjected to a specific direction and force will it be punctured at the annular opening groove 1120. This reduces the risk of the cover layer 11 being accidentally punctured in models without a sunroof, ensures the good sealing performance of the cover layer 11 to the through hole 12, and protects the NVH performance of the vehicle.

[0045] It should be noted that this disclosure does not limit the specific shape of the cross section of the annular opening groove 1120 in the axial direction of the through hole 12. For example, in one exemplary embodiment provided by this disclosure, the shape of the cross section of the annular opening groove 1120 in the axial direction of the through hole 12 can be V-shaped, or in another exemplary embodiment provided by this disclosure, the shape of the cross section of the annular opening groove 1120 in the axial direction of the through hole 12 can also be U-shaped.

[0046] Optionally, such as Figure 3 As shown, the thickness D of the bottom wall of the annular opening groove 1120 is 0.1mm to 0.5mm. When the thickness D of the bottom wall of the annular opening groove 1120 is in the range of 0.1mm-0.5mm, it ensures that the covering layer 11 has a certain strength under normal conditions, preventing it from breaking on its own due to minor collisions during daily production and transportation. At the same time, it allows operators or equipment to easily puncture the covering layer 11 at the location where the skylight water pipe 30 needs to pass through.

[0047] For example, if the bottom wall thickness D is relatively thin at 0.1mm, the force required to insert the skylight water pipe 30 is smaller, thus resulting in more efficient assembly.

[0048] If the bottom wall thickness D is 0.5mm, although it is slightly thicker, it can still be punctured smoothly under reasonable force, and at the same time, it can maintain the overall structural stability of the covering layer 11 to a certain extent.

[0049] Preferably, the thickness D of the bottom wall of the annular opening groove 1120 is 0.3 mm.

[0050] During the actual piercing process of the covering layer 11, even with the annular opening groove 1120, the covering layer 11 may still experience some piercing resistance, especially during the installation of the skylight water pipe 30, which may require considerable force to pierce the covering layer 11. This could damage the covering layer 11 and even affect the sealing effect. In this disclosure, as Figure 1 , Figure 2As shown, a piercing auxiliary hole 1121 is also formed on the covering layer 11, extending along its own thickness direction. The piercing auxiliary hole 1121 is located within the annular opening groove 1120. The presence of the piercing auxiliary hole 1121 further reduces the structural integrity and strength of the covering layer 11 at this location. When it is necessary to pierce the covering layer 11 to allow the skylight water pipe 30 to pass through, the required piercing force is smaller due to the lower strength at this location. The piercing auxiliary hole 1121 can serve as a guide and starting point for the skylight water pipe 30 to pass through, reducing the force required for the skylight water pipe 30 to pierce the covering layer 11, making it easier for the covering layer 11 to be pierced at this location, thereby maximizing the smooth installation of the skylight water pipe 30.

[0051] During the process of the sunroof water pipe 30 piercing the cover layer 11, the cover layer 11 needs to withstand a certain external force, and will also be affected by factors such as vibration and airflow during subsequent vehicle operation. Therefore, there is a risk that the cover layer 11 may detach from the through hole 12. To improve the stability of the cover layer 11, in this disclosure, such as... Figure 1 As shown, the cavity blocking structure 1 also includes a reinforcing connecting rib 13. One end of the reinforcing connecting rib 13 is connected to the body 10, and the other end is connected to the edge of the cover layer 11. Thus, under the action of the reinforcing connecting rib 13, the connection between the cover layer 11 and the body 10 becomes more secure and reliable. Even when the sunroof water pipe 30 passes through the through hole 12 or during vehicle operation, the reinforcing connecting rib 13 can effectively hold the cover layer 11 in place, preventing it from falling out of the through hole 12. Furthermore, when the sunroof water pipe 30 passes through the through hole 12, the cover layer 11 deforms and generates a moving elastic force. With the combined action of the reinforcing connecting rib 13, this further maintains the tight contact between the cover layer 11 and the sunroof water pipe 30, improving the sealing effect.

[0052] The second aspect of this disclosure provides a vehicle body structure, such as Figure 5 As shown, the structure includes a sunroof water pipe 30, a body A-pillar 40, a door sill 50, and the aforementioned cavity blocking structure 1. The body A-pillar 40 and door sill 50 together form a cavity structure with an internal cavity. The cavity blocking structure 1 is used to seal the opening formed on the door sill 50. The sunroof water pipe 30 is fixed to the body A-pillar 40 and pierces the covering layer 11 to pass through the through hole 12 of the cavity blocking structure 1. In this way, the sunroof water pipe 30 can pass through the through hole 12 by piercing the covering layer 11. At this time, the unpierced covering layer 11 located between the through hole 12 and the sunroof water pipe 30 can still play a certain sealing role, thereby improving the sealing performance of the cavity and the NVH (Noise, Vibration, Harshness) performance of the vehicle.

[0053] Alternatively, in another vehicle body structure provided in this disclosure, it may also include a body A-pillar 40, a door sill 50, and the cavity blocking structure 1 as described above. The body A-pillar 40 and door sill 50 together form a cavity structure with an internal cavity. The cavity blocking structure 1 is used to seal the opening formed on the door sill 50, and the covering layer 11 covering the through hole 12 of the cavity blocking structure 1 is in an unpunctured state. At this time, under the action of the covering layer 11, the sealing performance of the cavity and the NVH (Noise, Vibration, Harshness) performance of the vehicle are improved.

[0054] A third aspect of this disclosure provides a vehicle including the cavity blocking structure 1 as described above or the body structure as described above. This vehicle possesses all the beneficial effects of the aforementioned blocking structure and body structure, which will not be described further in this disclosure.

[0055] Furthermore, this disclosure does not limit the type of vehicle; it can be any vehicle suitable for employing the vehicle thermal management system. For example, the vehicle can be a sedan, truck, van, etc., or a pure electric vehicle, a hybrid electric vehicle (range-extended electric vehicle), etc., and this disclosure does not limit it in this regard.

[0056] The preferred embodiments of this disclosure have been described in detail above with reference to the accompanying drawings. However, this disclosure is not limited to the specific details of the above embodiments. Within the scope of the technical concept of this disclosure, various simple modifications can be made to the technical solutions of this disclosure, and these simple modifications all fall within the protection scope of this disclosure.

[0057] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, this disclosure will not describe the various possible combinations separately.

[0058] Furthermore, various different embodiments of this disclosure can be combined in any way, as long as they do not violate the spirit of this disclosure, they should also be regarded as the content disclosed in this disclosure.

Claims

1. A cavity blocking structure, connected within the cavity formed by the A-pillar and the door sill of a vehicle body, characterized in that, The cavity blocking structure includes a body and a covering layer integrally formed therewith. A through hole is formed on the body and extends along its own thickness direction. The covering layer covers the through hole and is constructed to be puncturable.

2. The cavity blocking structure according to claim 1, characterized in that, The covering layer is constructed to abut against the outer wall of the skylight water pipe when it passes through.

3. The cavity blocking structure according to claim 1, characterized in that, The covering layer is made of solid plastic; or, The covering layer is made of an elastic material.

4. The cavity blocking structure according to claim 3, characterized in that, The covering layer is made of nylon; or... The covering layer is made of butyl rubber.

5. The cavity blocking structure according to any one of claims 1-4, characterized in that, The covering layer includes a first part and a second part that are connected to each other. The second part is disposed around the outer periphery of the first part, and an annular opening groove is formed on the second part along the circumferential direction of the second part.

6. The cavity blocking structure according to claim 5, characterized in that, The thickness D of the bottom wall of the annular opening groove is 0.1mm~0.5mm.

7. The cavity blocking structure according to claim 5, characterized in that, The covering layer also has puncture auxiliary holes that extend through its own thickness direction, and the puncture auxiliary holes are located in the annular opening groove.

8. The cavity blocking structure according to any one of claims 1-4, characterized in that, The cavity blocking structure also includes a reinforcing connecting rib, one end of which is connected to the body and the other end of which is connected to the edge of the covering layer.

9. A vehicle body structure, characterized in that, The device includes a sunroof water pipe, a body A-pillar, a door sill, and a cavity blocking structure as described in any one of claims 1-8. The body A-pillar and the door sill together form a cavity structure with the cavity inside. The cavity blocking structure is used to block the opening formed on the door sill. The sunroof water pipe is fixed to the body A-pillar and pierces the covering layer and passes through the through hole of the cavity blocking structure.

10. A vehicle, characterized in that, Includes the cavity blocking structure according to any one of claims 1-8 or the vehicle body structure according to claim 9.

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