Car door connecting corner structure and car door
By designing the door corner joint structure, and utilizing the flange and sheet metal snap-fit, the problem of unstable door sealing strip corner connection was solved, improving the door's sealing performance and waterproof and dustproof effects.
Patent Information
- Application Number
- CN202520073096.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-13
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-01-13
AI Technical Summary
The corner joints of the door sealing strip are unstable, resulting in poor sealing.
A door corner joint structure was designed, including a body, a first sealing strip and an insert. The first flange is engaged with the door sheet metal, the second flange abuts against the window frame bright strip, and the insert is fastened to the door sheet metal to improve the connection stability.
The stability of the door sealing strip has been enhanced, the sealing between the door and the window frame bright strip has been improved, and the probability of water and dust entering the car has been reduced.
Smart Images

Figure CN223835377U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of vehicle technology, and in particular to a door corner structure and a door. Background Technology
[0002] As a crucial component of the vehicle's sealing system, automotive door sealing strips provide vibration damping, waterproofing, dustproofing, and sound insulation. The corner joints of the door sealing strips securely connect two strips, forming an angled structure. These corner joints fit better at the corners of the door, improving sealing performance and preventing water, dust, and other external contaminants from entering the vehicle. They also provide vibration damping, sound insulation, and heat insulation. However, in some technologies, the design of the corner joints is flawed. During operation, door vibrations can cause the corner joints to loosen, leading to unstable connections and compromised sealing performance. Utility Model Content
[0003] The technical problem to be solved by this utility model is that the related technology has the problem of unstable corner connection of door sealing strips and poor sealing performance.
[0004] To solve the above-mentioned technical problems, this utility model provides a door corner structure, including:
[0005] Body, which is used to connect with the sheet metal of the vehicle door;
[0006] The first sealing strip is connected to the body. The first sealing strip has a large lip and a first flange. The large lip is used to abut against the outer side panel. The first flange is located on the side of the first sealing strip facing the door sheet metal and below the large lip. The first flange protrudes from the first surface of the first sealing strip and forms a connecting groove with the first surface. The connecting groove is used to engage with the door sheet metal.
[0007] According to one embodiment of the present invention, the side of the first flange facing away from the door sheet metal is provided with a sealing protrusion, which is used to abut against the window frame bright strip to seal the gap between the window frame bright strip and the first flange.
[0008] According to one embodiment of the present invention, the main body is further provided with a second flange, which is located between the door sheet metal and the window frame bright strip and abuts against the window frame bright strip.
[0009] According to one embodiment of the present invention, the length of the second flange in its naturally extended state is L0, and in the working state, the distance between the root of the second flange and the window frame bright strip is L1, where 0≤(L0-L1)≤1mm.
[0010] According to one embodiment of the present invention, the second flange extends obliquely upward to form an acute angle with the vertical direction.
[0011] According to one embodiment of the present invention, the door corner structure further includes an insert, which is embedded in the body. The side of the insert facing the door sheet metal is provided with a buckle, which is used to fasten with the door sheet metal.
[0012] According to one embodiment of the present invention, the body is provided with at least one first positioning hole, and the insert is provided with at least one second positioning hole, wherein the first positioning hole and the second positioning hole correspond one-to-one.
[0013] According to one embodiment of the present invention, the side of the main body facing away from the car door sheet metal is provided with an avoidance recess, which is used to accommodate the end of the car door trim panel fastener.
[0014] According to one embodiment of the present invention, the door corner further includes a second sealing strip, the second sealing strip being connected to the lower edge of the body, and the first sealing strip being connected to the upper edge of the body.
[0015] This utility model also provides a car door, including a car door sheet metal and a car door corner structure as described above, wherein the car door sheet metal is connected to the car door corner structure.
[0016] The door corner structure of this utility model forms a connecting groove by means of a first flange and the first surface of a first sealing strip. The connecting groove is engaged with the door sheet metal, and the first flange is located below the large lip, so that the connection between the first sealing strip and the door sheet metal is more stable, reducing the probability of the large lip falling off during operation and improving the sealing performance of the door. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the door corner structure provided in an embodiment of the present invention.
[0018] Figure 2 This is a structural schematic diagram of the door corner provided in another embodiment of the present utility model.
[0019] Figure 3 This is one of the cross-sectional views of the door corner provided in this embodiment of the utility model.
[0020] Figure 4 This is the second sectional view of the door corner provided in this embodiment of the utility model.
[0021] Figure 5 This is a schematic diagram of the structure of the insert provided in an embodiment of the present utility model.
[0022] Figure label:
[0023] 100. Door corner structure;
[0024] 110. Body; 111. First positioning hole; 112. Avoidance recess;
[0025] 120. First sealing strip; 121. Large lip; 122. First flange; 1221. Sealing protrusion; 1222. Connecting groove; 123. Second flange; 124. First surface;
[0026] 130. Insert; 131. Snap-fit; 132. Second positioning hole; 140. Second sealing strip;
[0027] 210. Door sheet metal; 220. Window frame trim. Detailed Implementation
[0028] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.
[0029] In the description of the embodiments of this utility model, the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0030] In the description of the embodiments of this utility model, unless otherwise expressly specified and limited, the terms "connected" and "linked" should be interpreted broadly. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this utility model according to the specific circumstances.
[0031] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.
[0032] A car door according to an embodiment of the present utility model includes a car door sheet metal 210 and a car door corner structure 100, wherein the car door sheet metal 210 is connected to the car door corner structure 100.
[0033] like Figure 1 As shown, a door corner structure 100 according to an embodiment of the present invention includes a body 110 and a first sealing strip 120.
[0034] Specifically, the body 110 is used to connect with the door sheet metal 210 to fix the door corner structure 100. The first sealing strip 120 is connected to the body 110, and the first sealing strip 120 and the body 110 can be glued or snapped together. The first sealing strip 120 has a large lip 121 and a first flange 122. The large lip 121 is used to abut against the side panel (not shown in the figure) to seal the gap between the side panel and the door corner. The first flange 122 is located on the side of the first sealing strip 120 facing the door sheet metal 210 and below the large lip 121. The first flange 122 protrudes from the first sealing strip 120 and abuts against the side of the door sheet metal 210 away from the body 110 to fix the first sealing strip 120 and reduce the probability of the first sealing strip 120 falling off. The door corner structure 100 also includes a second sealing strip 140. The first sealing strip 120 is connected to the upper edge of the body 110, and the second sealing strip 140 is connected to the lower edge of the body 110.
[0035] like Figure 3As shown, the first sealing strip 120 has a first surface 124 facing the door sheet metal 210. A first flange 122 is located on the first surface 124 and protrudes from it. A connecting groove 1222 is formed between the first flange 122 and the first surface 124. The connecting groove 1222 is used to engage with the door sheet metal 210. Specifically, the upper edge of the door sheet metal 210 is engaged in the connecting groove 1222. The first flange 122 is located below the large lip 121. It can be understood that the large lip 121 plays a major sealing role. The length L2 of the large lip 121 is relatively long, while the width L3 is relatively small. The length-to-width ratio of the large lip 121 is large, and the large lip 121 is prone to falling off during operation, resulting in poor sealing between the side panel and the door corner structure 100. By setting a first flange 122 below the large lip 121, the first flange 122 and the first surface 124 of the first sealing strip 120 form a connecting groove 1222, which is engaged with the door sheet metal 210, making the connection between the first sealing strip 120 and the door sheet metal 210 more stable and reducing the probability of the large lip 121 falling off.
[0036] According to the door corner structure 100 of this utility model embodiment, a connecting groove 1222 is formed by the first flange 122 and the first surface 124 of the first sealing strip 120. The connecting groove 1222 is engaged with the door sheet metal 210. The first flange 122 is located below the large lip 121, so that the connection between the first sealing strip 120 and the door sheet metal 210 is more stable, reducing the probability of the large lip 121 falling off during operation and improving the sealing performance of the door.
[0037] According to some embodiments of this utility model, a sealing protrusion 1221 is provided on the side of the first flange 122 facing away from the door sheet metal 210. The sealing protrusion 1221 is used to abut against the window frame bright strip 220 to seal the gap between the window frame bright strip 220 and the first flange 122. See Figure 2 and Figure 3 As shown, the window frame bright strip 220 is connected to the door sheet metal 210, and the first flange 122 is located between the window frame bright strip 220 and the door sheet metal 210. The right side of the first flange 122 (as shown) Figure 3 The direction shown) abuts against the door sheet metal 210, and the left side of the first flange 122 (as shown) Figure 3 (In the direction shown) a sealing protrusion 1221 is provided, which extends to the left and abuts against the window frame bright strip 220 to improve sealing.
[0038] like Figure 1 and Figure 4As shown, according to some embodiments of this utility model, the main body 110 is further provided with a second flange 123. The second flange 123 is located between the door sheet metal 210 and the window frame bright strip 220, and abuts against the window frame bright strip 220 to improve the sealing between the door sheet metal 210 and the window frame bright strip 220. Specifically, the door sheet metal 210 is provided with a roller guide rail, the first sealing strip 120 is connected to the roller guide rail, and the second flange 123 is located between the roller guide rail and the window frame bright strip 220 to seal the gap between the roller guide rail and the window frame bright strip 220. The second flange 123 is located below the large lip edge 121, and the second flange 123 is along the length direction of the first sealing strip 120 (e.g., ...). Figure 1 The second flange 123 extends in the direction indicated by arrow a) to cover the gap between the door sheet metal 210 and the window frame trim 220, improving sealing. In some embodiments, the second flange 123 extends obliquely upward to form an acute angle with the vertical direction. Specifically, the second flange 123 is disposed on the first surface 124 and the second flange 123 is obliquely upward. The upper side of the second flange 123 forms an acute angle with the first surface 124 of the first sealing strip 120. When some water seeps in from the upper end of the window frame trim 220, the second flange 123 can guide the water to the acute angle formed between the second flange 123 and the first sealing strip 120, preventing water from further leaking into the door.
[0039] like Figure 4 As shown, according to some embodiments of this utility model, the length of the second flange 123 in its naturally extended state is L0, and in the working state, the distance between the root of the second flange 123 and the window frame bright strip 220 is L1, where 0≤(L0-L1)≤1mm. That is to say, in the working state, there is a certain amount of interference between the second flange 123 and the window frame bright strip 220, and the second flange 123 is compressed, thereby improving the sealing performance at the connection between the second flange 123 and the window frame bright strip 220.
[0040] like Figure 3 and Figure 5 As shown, according to some embodiments of this utility model, the door corner structure 100 further includes an insert 130, which is embedded in the body 110 and fixedly connected to the body 110. For example, the insert 130 and the body 110 can be connected by fasteners such as screws. The insert 130 is plate-shaped and can improve the structural strength of the body 110. The side of the insert 130 facing the door sheet metal 210 is provided with a buckle 131, which is used to fasten with the door sheet metal 210.
[0041] like Figure 1As shown, according to some embodiments of this utility model, the body 110 is provided with at least one first positioning hole 111, and the insert 130 is provided with at least one second positioning hole 132. The first positioning hole 111 and the second positioning hole 132 correspond one-to-one, so that the insert 130 is better positioned in the corner mold, the connection position between the insert 130 and the body 110 is positioned, and the offset of the insert 130 is reduced. Figure 1 and Figure 5 In the example, the body 110 is provided with three first positioning holes 111, and the insert 130 is provided with three second positioning holes 132. The three first positioning holes 111 are arranged in a triangular distribution, and the two second positioning holes 132 are arranged in a triangular distribution. The first positioning holes 111 and the second positioning holes 132 correspond one-to-one.
[0042] like Figure 1 As shown, according to some embodiments of the present invention, the side of the main body 110 facing away from the door sheet metal 210 is provided with an avoidance recess 112. The avoidance recess 112 is used to avoid the end of the fastener of the door trim panel. That is, the end of the fastener of the door trim panel can be housed in the avoidance recess 112 to avoid the fastener of the door trim panel from interfering with the main body 110 and affecting the fit between the door trim panel and the main body 110, thereby reducing the wear on the main body 110.
[0043] In summary, this utility model embodiment provides a door corner structure 100, which has at least the following beneficial effects:
[0044] 1. The installation of the first sealing strip 120 is more secure, and the sealing performance of the first sealing strip 120 is improved;
[0045] 2. Improved sealing between the door sheet metal and the window frame trim reduces the probability of water leakage.
[0046] Finally, it should be noted that the above embodiments are only used to illustrate this utility model and are not intended to limit it. It should be pointed out that those skilled in the art can make several improvements and substitutions without departing from the technical principles of this utility model, and these improvements and substitutions should also be considered within the protection scope of this utility model.
Claims
1. A door corner structure (100), characterized in that, include: Body (110), the body (110) is used to connect with the door sheet metal (210); The first sealing strip (120) is connected to the body (110). The first sealing strip (120) has a large lip (121) and a first flange (122). The large lip (121) is used to abut against the outer side panel. The first flange (122) is located on the side of the first sealing strip (120) facing the door sheet metal (210) and below the large lip (121). The first flange (122) protrudes from the first surface (124) of the first sealing strip (120) and forms a connecting groove (1222) with the first surface (124). The connecting groove (1222) is used to engage with the door sheet metal (210).
2. The door corner structure (100) according to claim 1, characterized in that, The first flange (122) has a sealing protrusion (1221) on the side facing away from the door sheet metal (210). The sealing protrusion (1221) is used to abut against the window frame bright strip (220) to seal the gap between the window frame bright strip (220) and the first flange (122).
3. The door corner structure (100) according to claim 2, characterized in that, The main body (110) is also provided with a second flange (123), which is located between the door sheet metal (210) and the window frame bright strip (220) and abuts against the window frame bright strip (220).
4. The door corner structure (100) according to claim 3, characterized in that, The length of the second flange (123) in its naturally extended state is L0. In the working state, the distance between the root of the second flange (123) and the window frame bright strip (220) is L1, 0≤(L0-L1)≤1mm.
5. The door corner structure (100) according to claim 3, characterized in that, The second flange (123) extends upward at an acute angle to the vertical direction.
6. The door corner structure (100) according to claim 1, characterized in that, The door corner structure (100) also includes an insert (130), which is embedded in the body (110). The side of the insert (130) facing the door sheet metal (210) is provided with a buckle (131), which is used to fasten to the door sheet metal (210).
7. The door corner structure (100) according to claim 6, characterized in that, The body (110) is provided with at least one first positioning hole (111), and the insert (130) is provided with at least one second positioning hole (132), with the first positioning hole (111) and the second positioning hole (132) corresponding one-to-one.
8. The door corner structure (100) according to claim 1, characterized in that, The body (110) has an avoidance recess (112) on the side facing away from the door sheet metal (210), and the avoidance recess (112) is used to accommodate the end of the door trim panel fastener.
9. The door corner structure (100) according to claim 1, characterized in that, The door corner also includes a second sealing strip (140), which is connected to the lower edge of the body (110), and the first sealing strip (120) is connected to the upper edge of the body (110).
10. A vehicle door, characterized in that, It includes a door sheet metal (210) and a door corner structure (100) as described in any one of claims 1 to 9, wherein the door sheet metal (210) is connected to the door corner structure (100).