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KR-20260063030-A - Inner Panel Structure of Vehicle Door Having Attached Hydrophilic Film

KR20260063030AKR 20260063030 AKR20260063030 AKR 20260063030AKR-20260063030-A

Abstract

The present invention relates to an inner panel structure of an automobile door, specifically an inner panel structure of an automobile door in which a hydrophilic film is attached to facilitate drainage through a drainage hole. According to the door inner panel (3) of the present invention, moisture entering the interior does not accumulate around the internal structure but is collected in a hydrophilic drainage guide (6) and guided to a drainage hole (5) at the bottom of the door to be discharged. Accordingly, the problem of moisture entering the door inner panel (3) accumulating around the internal structure and causing corrosion can be prevented.

Inventors

  • 정병우

Assignees

  • 삼진산업 주식회사

Dates

Publication Date
20260507
Application Date
20241030

Claims (5)

  1. In a vehicle door panel (1) comprising a door outer panel (2) and a door inner panel (3), A plurality of drainage holes (5) penetrating the inner panel (3) are installed at the bottom of the door inner panel (3), and At least one of the plurality of drainage holes (5) is provided with a hydrophilic drainage guide (6) extending from the upper part of the drainage hole (5) to the drainage hole (5). Vehicle door panel (1).
  2. In paragraph 1, The above door inner panel (3) further includes an internal structure (4) welded or attached to the panel surface, and The above hydrophilic drainage guide (6) is a first hydrophilic drainage guide (6a) installed starting from a spaced position below the internal structure (4) and extending to the drainage hole (5), and Each comprising a second hydrophilic drainage guide (6b) and a third hydrophilic drainage guide (6c) installed to be inclined diagonally from the upper left or upper right of the first hydrophilic drainage guide (6a) to the position where the first hydrophilic drainage guide (6a) begins, Vehicle door panel (1).
  3. In paragraph 2, The first hydrophilic drainage path (6a), the second hydrophilic drainage path (6b) to the left of it, and the third hydrophilic drainage path (6c) to the right of it have a Y shape. Vehicle door panel (1).
  4. In paragraph 1 or 2, The above hydrophilic drainage guide (6) is formed by attaching a hydrophilic film to the door inner panel (3), in a vehicle door panel (1).
  5. In paragraph 1, The above door inner panel (3) further includes an internal structure (4) welded or attached to the panel surface, and A vehicle door panel (1) having a water-repellent drainage guide (7) installed on at least a portion of the outer perimeter of the internal structure (4).

Description

Vehicle door inner panel structure with attached hydrophilic film The present invention relates to an inner panel structure of an automobile door, specifically an inner panel structure of an automobile door in which a hydrophilic film is attached to enable smooth drainage through drainage holes. Water enters the interior of a vehicle door through the gaps in the door glass due to rain or car washing. In humid weather, moisture from inside the vehicle may also adhere to the inner panel of the door. Since such incoming water and moisture can cause condensation or corrosion, they need to be drained quickly, and accordingly, drainage holes have been installed in vehicle doors for a long time. In the case of moisture attached to the surface of a typical panel, it flows downward due to vehicle vibration and gravity. However, when internal structures are welded or attached to the inner panel, water does not flow and remains stagnant in the outer gap between the panel and the surface where the internal structures are attached. This stagnant moisture causes corrosion in the affected area. FIG. 1 is a drawing showing a door panel of the prior art. FIG. 2 is an enlarged view of a portion of an inner door panel in which hydrophilic drainage guides (6a, 6b, 6c) are installed according to one embodiment of the present invention. FIG. 3 is an enlarged view of a portion of an inner door panel in which a water-repellent drainage guide (7) is installed together with a hydrophilic drainage guide (6) according to one embodiment of the present invention. The invention described below is susceptible to various modifications and may have various embodiments, and specific embodiments are illustrated in the drawings and described in detail. However, this is not intended to limit the invention described below to specific embodiments, and it should be understood that it includes all modifications, equivalents, and substitutions that fall within the spirit and scope of the technology described below. In drawings, identical symbols refer to identical elements. Throughout the specification, when a part is described as "comprising," "containing," or "having" a certain component, this means that, unless specifically defined otherwise, it may include additional components. Terms such as "first," "second," etc., are used to distinguish one component from another, and the components are not limited by the aforementioned terms. When it is said that one part is "above" or "below" another part, this includes not only cases where the two parts are in contact by being "directly above" or "directly below," but also cases where another part exists in between. Conversely, when it is said that one part is "directly above" or "directly below" another part, it means that there is no other part in between. The present invention will be described in detail below with reference to FIGS. 1 to 3. According to one embodiment of the present invention, a vehicle door panel (1) comprising a door outer panel (2) and a door inner panel (3) is provided, wherein a plurality of drainage holes (5) penetrating the inner panel (3) are installed at the bottom of the door inner panel (3), and at least one of the plurality of drainage holes (5) has a hydrophilic drainage guide (6) installed from the top of the drainage hole (5) to the drainage hole (5). According to one embodiment, the door inner panel (3) further includes an internal structure (4) welded or attached to the panel surface, and the hydrophilic drainage guide (6) may be installed from a position corresponding to the lower part of the internal structure (4) and the upper part of the drainage hole (5) to the drainage hole (5). The hydrophilic drainage guide (6) may be installed in parallel for each drainage hole (5). The hydrophilic drainage guide (6) may be in direct contact with the lower part of the internal structure (4), or it may be installed at a position spaced apart from the lower part of the internal structure (4). According to one embodiment, the door inner panel (3) further includes an internal structure (4) welded or attached to the panel surface, and the hydrophilic drainage guide (6) may include a first hydrophilic drainage guide (6a) installed starting from a spaced position below the internal structure (4) and extending to a drainage hole (5), and a second hydrophilic drainage guide (6b) and a third hydrophilic drainage guide (6c) installed to be inclined diagonally from the upper left or upper right of the first hydrophilic drainage guide (6a) to the position where the first hydrophilic drainage guide (6a) begins. Here, the "inclined diagonally" shape is intended to allow water to flow well toward the drainage hole (5) by gravity along the guide when water accumulates on the upper part of the hydrophilic drainage guide. Accordingly, the diagonally inclined shape is not particularly limited and may be a straight shape or a curved shape, and the angle of inclination is not particularly limited