Pillar structure of vehicle and vehicle
By introducing reinforcing tubes and foaming components into the vehicle pillar structure and connecting them to the ventilation ducts, the problems of increased pillar width and connection in the prior art are solved, achieving a strengthening and sealing effect on the pillar structure, and improving ride comfort and safety.
Patent Information
- Application Number
- PCT/CN2025/086386
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2024-04-25
- Filing Date
- 2025-03-31
- Publication Date
- 2025-10-30
AI Technical Summary
The existing vehicle ventilation ducts are located on the outside of the side panel, which increases the width of the pillar structure, affecting safety, and there are problems with the connection between the metal ventilation ducts and the plastic ducts.
A reinforcing tube is installed in the vehicle pillar structure, using high-strength carbon fiber composite material. The outer side panel and the inner pillar panel are connected by welding. A foaming component is installed between the reinforcing tube and the outer side panel and the inner pillar panel to enhance the connection strength and heat insulation effect. At the same time, the reinforcing tube is connected to the ventilation duct by insertion, and nylon injection molding parts are used to improve the sealing performance. An anti-corrosion coating is applied to the inside of the reinforcing tube.
The overall width of the column structure was reduced, improving connection strength and sealing effect, while enhancing ride comfort and safety without increasing cost or weight.
Smart Images

Figure CN2025086386_30102025_PF_FP_ABST
Abstract
Description
Vehicle pillar structure and vehicle Cross-references to related applications
[0001] This application claims priority to Chinese patent application No. 202420881731.0, filed on April 25, 2024, the entire contents of which are incorporated herein by reference. Technical Field
[0002] This application relates to, but is not limited to, the field of vehicle body structure, and particularly to a vehicle pillar structure and a vehicle. Background Technology
[0003] With social progress and economic development, the pursuit of larger interior space has become a new trend, and larger interior space requires more air vents.
[0004] Vehicles typically have ventilation openings on the roof, and the ventilation system is connected to the vehicle's ventilation system via ventilation ducts installed on the body pillars. Summary of the Invention
[0005] The following is an overview of the subject matter described in detail herein. This overview is not intended to limit the scope of the claims.
[0006] This application provides a pillar structure for a vehicle and a vehicle.
[0007] One aspect of this application provides a vehicle pillar structure, including: an outer side panel, an inner pillar panel, and a reinforcing tube; wherein the outer side panel is connected to the inner pillar panel to define a cavity between the outer side panel and the inner pillar panel, and the reinforcing tube is disposed within the cavity; the reinforcing tube is connected to the vehicle's ventilation duct; and injection molded parts are disposed at both ends of the reinforcing tube, the injection molded parts being plugged into the ventilation duct.
[0008] In some embodiments of this application, a sealing element is provided between the reinforcing tube and the ventilation duct to seal the gap between the reinforcing tube and the ventilation duct.
[0009] In some embodiments of this application, a foaming component is also included; wherein a portion of the foaming component is disposed between the reinforcing tube and the outer side panel, and between the reinforcing tube and the inner column panel.
[0010] In some embodiments of this application, the foaming component includes a main body and an adhesive part; the adhesive part connects the reinforcing tube to the outer side panel, and / or the reinforcing tube to the inner column panel; the main body is capable of filling the gap between the reinforcing tube and the outer side panel and the gap between the reinforcing tube and the inner column panel.
[0011] In some embodiments of this application, the length of the adhesive portion is greater than or equal to 60 mm and less than or equal to 100 mm; and / or, the width of the adhesive portion is greater than or equal to 5 mm and less than or equal to 20 mm.
[0012] In some embodiments of this application, the inner side of the reinforcing tube is provided with an anti-corrosion coating.
[0013] In some embodiments of this application, the anti-corrosion coating is a Dacromet coating.
[0014] In some embodiments of this application, the thickness of the anti-corrosion coating is greater than or equal to 6 micrometers and less than or equal to 10 micrometers.
[0015] In some embodiments of this application, the distance between the reinforcing tube and the outer side panel and the distance between the reinforcing tube and the inner column panel are both greater than or equal to 5 mm and less than or equal to 10 mm.
[0016] Another aspect of this application provides a vehicle including the aforementioned vehicle pillar structure.
[0017] This application incorporates a reinforcing tube into the vehicle's pillar structure. This tube serves both as a reinforcement to strengthen the pillar structure and as a ventilation duct to reduce the overall width of the pillar. Furthermore, nylon injection-molded parts are installed at both ends of the reinforcing tube, which are connected to the ventilation duct via an insert joint, improving the sealing effect without increasing additional cost or weight.
[0018] It should be understood that the above general description and the following detailed description are merely exemplary and explanatory, and do not limit this application. Other aspects will become clear after reading and understanding the accompanying drawings and detailed description. Attached Figure Description
[0019] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.
[0020] Figure 1 is a schematic diagram of the pillar structure of the vehicle of this application.
[0021] Figure 2 is a cross-sectional view of the pillar structure of the vehicle shown in Figure 1 along the AA direction.
[0022] Figure 3 is a schematic diagram of the reinforcing tube and foaming assembly of this application.
[0023] Figure 4 is a schematic diagram showing the connection between the reinforcing pipe and the ventilation duct of this application.
[0024] Figure 5 is a cross-sectional view of the connection between the reinforcing pipe and the ventilation duct of this application.
[0025] Explanation of reference numerals in the attached drawings: 10, outer side panel; 11, weld point; 12, cavity; 20, inner column panel; 30, reinforcing tube; 31, anti-corrosion coating; 32, air inlet injection molded part; 33, air outlet injection molded part; 40, foaming component; 41, main body; 42, adhesive part; 50, ventilation duct; 60, sealing element. Detailed Implementation
[0026] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this specification. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this specification as detailed in the appended claims.
[0027] The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to limit the application. Unless otherwise defined, the technical or scientific terms used in this specification should be understood in their ordinary sense by one of ordinary skill in the art to which this application pertains. The terms "first," "second," and similar terms used in this specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, "a" or "one," and similar terms do not indicate a quantity limitation, but rather indicate the presence of at least one. "A plurality" or "several" indicates two or more. Unless otherwise indicated, terms such as "front," "rear," "lower," and / or "upper" are for ease of description only and are not limited to a location or spatial orientation. Terms such as "comprising" or "including" mean that the elements or objects preceding "comprising" encompass the elements or objects listed following "comprising" or "including" and their equivalents, and do not exclude other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections and can include electrical connections, whether direct or indirect.
[0028] The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The singular forms “a,” “the,” and “the” used in this specification and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any and all possible combinations of one or more of the associated listed items.
[0029] The existing ventilation ducts are located on the outer side of the side panels, resulting in a larger overall width of the vehicle's pillars and increasing their obstruction angle, which is detrimental to safe driving. Furthermore, the placement of the ventilation ducts on the pillars poses a collision risk; therefore, the ventilation ducts are typically made of metal, but this also creates connection problems with ventilation ducts made of plastic.
[0030] In view of this, this application provides a vehicle column structure and vehicle that can reduce the width of the column structure and facilitate connection with the ventilation system.
[0031] The embodiments of this application will now be described in detail.
[0032] Please refer to Figures 1 to 5. This application provides a vehicle pillar structure, including an outer side panel 10, an inner pillar panel 20, and a reinforcing tube 30. The outer side panel 10 is connected to the inner pillar panel 20 to define a cavity 12 between the outer side panel 10 and the inner pillar panel 20, and the reinforcing tube 30 is disposed within the cavity 12.
[0033] The pillar structure of the vehicle described in this application can be the A-pillar, B-pillar, or C-pillar of the vehicle, and this application does not limit it in this regard.
[0034] The outer side panel 10 and the inner column panel 20 can be connected by welding. Specifically, the outer side panel 10 and the inner column panel 20 can be welded by argon arc welding, electric arc welding, or laser welding, and the number of weld points 11 can be two.
[0035] The reinforcing tube 30 can be made of high-strength carbon fiber composite material or other high-strength composite metal material; this application does not impose any restrictions on this. The distance between the reinforcing tube 30 and the outer side panel 10, and the distance between the reinforcing tube 30 and the inner column panel 20, are both greater than or equal to 5 mm and less than or equal to 10 mm.
[0036] The vehicle's pillar structure also includes a foaming assembly 40. The foaming assembly 40 is disposed between the reinforcing tube 30 and the outer side panel 10, and between the reinforcing tube 30 and the inner pillar panel 20.
[0037] Since the reinforcing pipe 30 is made of metal, which has a higher thermal conductivity than pipe materials such as plastic, the foaming component 40 can be installed between the reinforcing pipe 30 and the outer side panel 10 and between the reinforcing pipe 30 and the inner column panel 20 to reduce heat loss.
[0038] The foaming assembly 40 includes a main body 41 and an adhesive part 42. The adhesive part 42 connects the reinforcing tube 30 to the outer side panel 10 and / or the reinforcing tube 30 to the inner column panel 20. The adhesive part 42 can be heated and foamed during welding of the outer side panel 10 and the inner column panel 20, thereby improving the connection strength between the reinforcing tube 30 and the outer side panel 10, and between the reinforcing tube 30 and the inner column panel 20. After being heated and foamed, the main body 41 fills the gaps between the reinforcing tube 30 and the outer side panel 10, and between the reinforcing tube 30 and the inner column panel 20, thereby reducing heat loss.
[0039] Please refer to Figure 2. In this embodiment, there are three adhesive parts 42. Two adhesive parts are distributed between the reinforcing tube 30 and the inner plate 20 of the column to connect the reinforcing tube 30 and the inner plate 20 of the column; one adhesive part is distributed between the reinforcing tube 30 and the outer side panel 10 to connect the reinforcing tube 30 and the outer side panel 10.
[0040] In one embodiment, the adhesive portion 42 may be made of a single-component epoxy resin, and the main body portion 41 may be made of synthetic rubber and resin.
[0041] Since the thermal insulation coefficient of the adhesive part 42 is less than that of the main body 41, it is necessary to ensure that the area of the main body 41 is greater than the area of the adhesive part 42, thereby reducing the reduction in the thermal insulation effect of the foamed component 40 caused by the use of the adhesive part 42.
[0042] Please refer to Figure 3. Specifically, the length of the adhesive portion 42 should be controlled to be greater than or equal to 60 mm and less than or equal to 100 mm; and / or, the width of the adhesive portion 42 should be controlled to be greater than or equal to 5 mm and less than or equal to 20 mm.
[0043] In one embodiment, the foaming component 40 can be first placed on the outside of the reinforcing tube 30, the main body 41 and the reinforcing tube 30 can be connected by adhesive bonding, and then the reinforcing tube 30 can be placed in the cavity 12 formed by the side outer plate 10 and the column inner plate 20, thereby connecting the reinforcing tube 30 with the side outer plate 10 and the reinforcing tube 30 with the column inner plate 20.
[0044] In this embodiment, a notch can be partially cut on the main body 41, and an adhesive part 42 can be pasted at the notch to form a foaming component 40.
[0045] The reinforcing pipe 30 provided in this application is also connected to the vehicle's ventilation duct 50.
[0046] This application incorporates a reinforcing tube 30 within the vehicle's pillar structure. The reinforcing tube 30 acts as a reinforcement to strengthen the pillar structure, serving as a ventilation duct while reducing the overall width of the pillar. A foaming assembly 40 is installed between the reinforcing tube 30 and the pillar. The foaming assembly 40 has an adhesive portion 42 and a main body portion 41. The adhesive portion 42 connects the reinforcing tube 30 to the pillar, thereby increasing the connection strength. The main body portion 41 fills the gap between the reinforcing tube 30 and the pillar, thus improving the quietness of the vehicle interior and the comfort of the occupants.
[0047] The ventilation duct 50 is a plastic pipe, and the radius of the ventilation duct 50 is larger than the radius of the reinforcing pipe 30. Therefore, the reinforcing pipe 30 is connected to the ventilation duct 50 by inserting the reinforcing pipe 30 into the ventilation duct 50 and using nylon injection molding at the connection.
[0048] In one embodiment, the reinforcing tube 30 includes an air inlet injection molded part 32 and an air outlet injection molded part 33. The air inlet injection molded part 32 is located below the air outlet injection molded part 33, thereby connecting the vent located on the top of the vehicle to the ventilation duct located below the vent on the top of the vehicle, and improving the sealing effect without increasing additional cost and weight.
[0049] Specifically, a sealing element 60 can be provided between the reinforcing pipe 30 and the ventilation duct 50 to seal the gap between them. The sealing element 60 can be sealing foam.
[0050] To prevent condensation inside the reinforcing tube 30, which could corrode the tube, an anti-corrosion coating 31 is provided on the inside of the reinforcing tube 30.
[0051] In one embodiment, the thickness of the anti-corrosion coating 31 is greater than or equal to 6 micrometers and less than or equal to 10 micrometers. The anti-corrosion coating 31 may be a Dacromet coating. Dacromet coating is a non-electrolytic zinc plating technology that provides corrosion resistance by forming a zinc alloy coating on the metal surface.
[0052] Dacromet coatings typically consist of the following layers: Zinc-iron alloy layer: A zinc-iron alloy layer is formed on the metal surface, providing excellent corrosion resistance; Inorganic chemical conversion layer: Through a special inorganic chemical reaction, the zinc-iron alloy layer is converted into a dense inorganic chemical substance, further improving corrosion resistance; Organic coating: The outermost layer is an organic coating, providing additional corrosion resistance and weather resistance, while also offering an aesthetic effect.
[0053] Dacromet coatings offer the following advantages: Excellent corrosion resistance: Dacromet coatings effectively prevent corrosion of metal surfaces, extending the service life of materials; Uniform coverage: Dacromet coatings provide uniform coverage of metal surfaces, protecting both flat and complex-shaped parts; Weather resistance: The organic coating provides excellent weather resistance, making Dacromet coatings suitable for outdoor environments; Environmental friendliness: The preparation process of Dacromet coatings does not use heavy metals or harmful substances, meeting environmental protection requirements; Dacromet coatings are commonly used in the automotive, electronic equipment, and building materials industries, providing effective corrosion protection for metal products.
[0054] This application also provides a vehicle including the aforementioned vehicle pillar structure.
[0055] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this application are indicated by the following claims.
[0056] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this application is limited only by the appended claims.
[0057] The above descriptions are merely some embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.
Claims
1. A vehicle pillar structure, comprising an outer side panel, an inner pillar panel, and a reinforcing tube; wherein, The outer side panel is connected to the inner column panel to define a cavity between the outer side panel and the inner column panel, and the reinforcing tube is disposed in the cavity; The reinforcing pipe is connected to the vehicle's ventilation duct; The reinforcing tube has injection molded parts at both ends, and the injection molded parts are plugged into the ventilation duct.
2. The vehicle pillar structure according to claim 1, wherein, A sealing element is provided between the reinforcing tube and the ventilation duct to seal the gap between them.
3. The vehicle pillar structure according to claim 1 or 2 further includes a foaming component; wherein, Some of the foaming components are disposed between the reinforcing tube and the outer side panel, and between the reinforcing tube and the inner column panel.
4. The vehicle pillar structure according to claim 3, wherein, The foaming component includes a main body and an adhesive part; The adhesive part connects the reinforcing tube to the outer side panel, and / or the reinforcing tube to the inner column panel; The main body can fill the gap between the reinforcing tube and the outer side panel, as well as the gap between the reinforcing tube and the inner column panel.
5. The vehicle pillar structure according to claim 4, wherein, The length of the adhesive portion is greater than or equal to 60 mm and less than or equal to 100 mm; and / or, The width of the adhesive portion is greater than or equal to 5 mm and less than or equal to 20 mm.
6. The pillar structure of the vehicle according to any one of claims 1 to 5, wherein, The inner side of the reinforcing tube is provided with an anti-corrosion coating.
7. The vehicle pillar structure according to claim 6, wherein, The anti-corrosion coating is a Dacromet coating.
8. The vehicle pillar structure according to claim 6 or 7, wherein, The thickness of the anti-corrosion coating is greater than or equal to 6 micrometers and less than or equal to 10 micrometers.
9. The pillar structure of the vehicle according to any one of claims 1 to 8, wherein, The distance between the reinforcing tube and the outer side panel, and the distance between the reinforcing tube and the inner column panel, are both greater than or equal to 5 mm and less than or equal to 10 mm.
10. A vehicle comprising the pillar structure of the vehicle as claimed in any one of claims 1 to 9.
Citation Information
Patent Citations
Car vertical column structure
CN107512315A
Stand column structure of vehicle and vehicle
CN222022767U
Stand column structure of vehicle and vehicle
CN222040580U
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JP2022053049A
Pillar reinforcing structure of an automobile
KR1020060017020A