Vehicle door inner belt line end connecting corner and vehicle door assembly

Abstract

The utility model relates to a car door inner water cutting end part connecting corner and car door assembly, the car door inner water cutting end part connecting corner is installed between a car door metal plate and an inner water cutting body, the car door inner water cutting end part connecting corner comprises a connecting corner body made of an elastic material, the connecting corner body is elastically clamped on the car door metal plate, and the end part of the inner water cutting body is integrally connected with the connecting corner body. Compared with an existing mode of pasting sealing foam, the automobile door inner water cutting end connecting corner is arranged between the automobile door metal plate and the inner water cutting body, so that the assembling and connecting stability can be enhanced, and the end connecting corner is not prone to falling off. And meanwhile, the sealing performance of the end part of the inner sealing strip can be improved, and the conditions of air leakage, sound leakage and the like due to untight sealing are avoided.

Description

Technical Field

[0001] This application relates to the field of automotive technology, and more specifically, to a door inner water-cutting end joint and door assembly. Background Technology

[0002] With the rapid development of the automotive industry, customers' demands for vehicle performance are also gradually increasing. In order to ensure the smooth operation of the door glass and to prevent external water and dust from entering the vehicle, an inner and outer water-cutting structure is usually installed at the door window frame. The outer water-cutting is on the outside of the glass, and the inner water-cutting is on the inside of the glass. The main part of the inner water-cutting achieves a sealing effect by contacting the glass through a sealing lip.

[0003] The end seal of the internal watertight seal is usually ignored or sealed by pasting foam. However, given the increasingly stringent requirements for overall airtightness, the contribution of the seal at the end of the internal watertight seal will also be considered.

[0004] Meanwhile, the adhesive foam at the inner water cut end is prone to falling off, and the front and rear positions are not easy to position during assembly, resulting in poor sealing and air and sound leakage. Utility Model Content

[0005] The purpose of this application is to provide a door inner water-cutting end joint and door assembly that can solve the above-mentioned technical problems of poor sealing effect and unstable assembly connection.

[0006] To achieve the above objectives, in a first aspect, this utility model provides an inner water cutter end bracket for a car door, installed between the car door sheet metal and the inner water cutter body, comprising: a bracket body made of elastic material, the bracket body being elastically snapped onto the car door sheet metal, and the end of the inner water cutter body being integrally connected to the bracket body.

[0007] In an optional embodiment, the corner body includes a snap-fit ​​groove with an open structure and a snap claw disposed inside the snap-fit ​​groove, wherein the door sheet metal is elastically pressed into the snap-fit ​​groove by the snap claw.

[0008] In an optional embodiment, a first sealing surface of the corner body is provided on one side wall of the mounting groove, and the claws are disposed opposite to each other on the other side of the first sealing surface.

[0009] In an optional embodiment, the top of the mounting slot is provided with a shoulder, the sidewall of which forms a second sealing surface of the corner body, and the corner body includes a sealing lip located on the side.

[0010] In an optional embodiment, the door sheet metal includes an inner door panel and a door frame reinforcement plate. The outer side wall of the door frame reinforcement plate is attached to the first sealing surface, and the edges of the inner door panel and the door frame reinforcement plate are attached to the second sealing surface. The sealing lip is elastically pressed against the inner side wall of the inner door panel.

[0011] In an optional embodiment, the corner connector body includes a first mating surface and a second mating surface, the first mating surface and the second mating surface being respectively connected to the inner water-cutting body, the corner connector body including a connecting bend, the first mating surface being disposed at the bent end of the connecting bend, and the second mating surface including the longitudinal section of the corner connector body located at the mounting groove.

[0012] In an optional embodiment, a crack-resistant plate is provided at the contact portion between the second mating surface and the inner water-cutting body, and the crack-resistant plate is provided on both sides of the mounting groove.

[0013] One part of the anti-crack plate is attached to the corner body, and the other part is attached to the inner water-cutting body.

[0014] In an optional embodiment, both the anti-crack plate and the corner joint body are made of thermoplastic vulcanized rubber and are integrally molded by thermoplastic molding. The end of the inner water-cutting body is heat-sealed to the corner joint body.

[0015] In an optional embodiment, the top wall of the shoulder platform is provided with measuring marker strips.

[0016] Secondly, this utility model provides a car door assembly, including a front sheet metal part of the car door, a rear sheet metal part of the car door, and a car door inner water-cutting end bracket as described in any of the foregoing embodiments. The car door inner water-cutting end bracket is connected to both ends of the inner water-cutting body and is elastically engaged with the front sheet metal part of the car door and the rear sheet metal part of the car door, respectively.

[0017] By setting an inner water cutter end joint between the door sheet metal and the inner water cutter body, the assembly connection stability can be enhanced compared to the existing method of pasting sealing foam, making the end joint less likely to fall off.

[0018] It can also improve the sealing of the inner water cut end, avoiding situations such as poor sealing, air leakage, and noise leakage.

[0019] Other features and advantages of this application will be described in detail in the following detailed description section. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram showing the fit between the inner water-cutting end joint of the vehicle door and the vehicle door in this application;

[0022] Figure 2 This is a schematic diagram of the corner body from one of the side views.

[0023] Figure 3 This is a structural schematic diagram of the corner bracket body from another side view angle;

[0024] Figure 4 for Figure 1 A schematic diagram of the AA-direction cross-section structure;

[0025] Figure 5 for Figure 1 Schematic diagram of the BB-direction cross-section structure;

[0026] Figure 6 for Figure 1 Schematic diagram of the CC-direction cross-section structure;

[0027] Figure 7 for Figure 1 Schematic diagram of the DD-direction cross-section structure;

[0028] Figure 8 This is a structural schematic diagram of the car door assembly.

[0029] icon:

[0030] 1-Door sheet metal; 11-Door inner panel; 12-Door frame reinforcement plate;

[0031] 2-Internal water cutting body;

[0032] 3-Corner body; 31-Mounting slot; 32-Claw; 33-Shoulder; 34-Sealing lip; 35-First mating surface; 36-Second mating surface; 37-Connecting bevel; 38-Measuring mark strip; 39-Mounting interface;

[0033] 4-First sealing surface;

[0034] 5-Second sealing surface;

[0035] 6-Crack-resistant plate; 61-First crack-resistant plate; 62-Second crack-resistant plate;

[0036] 7-Front panel of the car door;

[0037] 8- Rear door sheet metal;

[0038] 9. Car window glass. Detailed Implementation

[0039] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0040] In the description of this application, it should be noted that the terms "inner" and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used only for the convenience of describing this application and for 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 this application. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0041] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "setup" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0042] The inner water-cutting end joint of this application is mainly used on the inner water-cutting of the door glass. By setting the necessary end joint structure, the assembly reliability with the door sheet metal is improved, and the sealing performance of the inner water-cutting end is enhanced.

[0043] See Figure 1 and combined Figures 2-3 ,as well as Figures 4-7 The end joint of the inner water cutter in this utility model is installed between the door sheet metal 1 and the inner water cutter body 2.

[0044] The end joint and the door sheet metal 1 are in a flexible snap-fit ​​relationship. The inner water cutter body 2 is assembled on the stop of the door window frame sheet metal through its own inner water cutter claw 32 structure. The end joint and the door sheet metal 1 are in a conformal fit form, and the sealing installation is carried out by the compression form of interference fit.

[0045] The end corner and the inner water-cutting body 2 are connected as a whole. Specifically, during the thermoplastic molding process of the end corner body 3, the inner water-cutting body 2, after necessary cutting, is inserted into the injection mold, thereby achieving the thermoplastic molding of the corner body 3 and the heat-sealing connection between the corner body 3 and the inner water-cutting body 2.

[0046] The inner water-cutting end corner of the car door in this utility model has a main structure including a corner body 3 made of elastic material. Combined with the above-mentioned connection method, the corner body 3 can be elastically snapped onto the car door sheet metal 1, and the corner body 3 can be integrally connected to the end of the inner water-cutting body 2.

[0047] In one specific embodiment, starting from the angle of the door sheet metal 1 and the corner body 3, the corner body 3 includes a snap-fit ​​groove 31 with an open structure and a snap claw 32 disposed inside the snap-fit ​​groove 31. The door sheet metal 1 is elastically pressed into the snap-fit ​​groove 31 by the snap claw 32.

[0048] This configuration allows for an interference fit between the door sheet metal 1 and the mounting slot 31, enabling installation through compression and achieving a seal. The open mounting slot 31 facilitates the insertion and mating of the corner bracket 3 onto the door sheet metal 1, simplifying the connection and installation process.

[0049] In order to ensure sealing performance, in addition to the elastic clamping, necessary sealing structures need to be set at different parts of the door sheet metal 1 and the corner body 3 to enhance the sealing performance of the inner water-cut end.

[0050] Specifically, the sealing structure in this utility model mainly includes sealing surfaces constructed on different parts of the corner body 3 to form an effective fit with the door sheet metal 1, and sealing strips constructed on the corner body 3 to ensure that the door sheet metal 1 fits the corner body 3 with a lip seal.

[0051] Furthermore, the corner body 3 includes a first sealing surface 4, a second sealing surface 5, and a sealing lip 34.

[0052] Wherein: the first sealing surface 4 of the corner body 3 is set on one side of the groove wall of the mounting groove 31, and the claw 32 for mounting the door sheet metal 1 is set on the other side of the first sealing surface 4 relative to the mounting groove 31.

[0053] In this embodiment, the corner body 3, in addition to the mounting groove 31, also includes a mounting interface 39 for side-mounting onto the door sheet metal 1. The mounting interface 39 is located on the side away from the inner water-cutting body 2, thereby forming a shoulder platform 33 located at the top of the mounting groove 31.

[0054] During the lateral engagement process, as the edge of the door sheet metal 1 engages with the engagement interface 39, the side wall of the shoulder platform 33 facing the door sheet metal 1 forms the second sealing surface 5 of the corner body 3.

[0055] The relationship between elastic compression is mainly reflected in two different dimensions.

[0056] One direction is the compression between the mounting slot 31 and the thickness direction of the door sheet metal 1, and the other direction is the compression between the corner body 3 and the edge of the door sheet metal 1 from the length direction of the door.

[0057] The first sealing surface 4 is mainly for sealing the former mating relationship, and the second sealing surface 5 is mainly for sealing the latter mating relationship, which can ensure compression sealing in two dimensions and improve the sealing effect.

[0058] Furthermore, the corner body 3 also includes a sealing lip 34 located on the side. Specifically, the sealing lip 34 is located at the outer end of the card interface 39 and is mainly used to cover and fit the door sheet metal 1 at the outermost part to ensure the sealing effect to the greatest extent.

[0059] In this embodiment, the door sheet metal 1 includes an inner door panel 11 and a door frame reinforcing plate 12. In terms of relative position, the door frame reinforcing plate 12 is located on the outer side, and the inner door panel 11 is located on the inner side.

[0060] The outer wall of the door frame reinforcing plate 12 is attached to the first sealing surface 4, and the edges of the inner door panel 11 and the door frame reinforcing plate 12 are attached to the second sealing surface 5. The sealing lip 34 is elastically pressed against the inner wall of the inner door panel 11.

[0061] This creates seals in different parts and dimensions, minimizing the possibility of air or sound leakage.

[0062] In another specific embodiment, from the connection angle between the corner body 3 and the inner water vapor body, the corner body 3 includes a first mating surface 35 and a second mating surface 36.

[0063] The first mating surface 35 and the second mating surface 36 are respectively connected to the inner water-cutting body 2, forming a stable connection relationship. Compared with the existing adhesive sealing foam, this can effectively reduce detachment.

[0064] Furthermore, the corner body 3 is connected to the inner water-cutting body 2, which has undergone necessary cutting operations, via the first mating surface 35 and the second mating surface 36 using an injection molding process, ensuring a stable and reliable connection.

[0065] The corner body 3 includes a connecting bend 37 disposed on the side of the mounting groove 31, a first mating surface 35 disposed at the bent end of the connecting bend 37, and a second mating surface 36 comprising a longitudinal section of the corner body 3 located in the mounting groove 31.

[0066] The two mating surfaces mentioned above constitute the connection surface between the corner body 3 and the inner water-cutting body 2, and can be formed during the injection molding process of the corner body 3. At the same time, they are heat-sealed together with the inner water-cutting body 2 to form an integral structure.

[0067] Because the corner body 3 and the inner water-cutting body 2 are made of different materials, the joint is weaker than that made of the same material. Also, due to limited space, the corner design is relatively small and the joint surface is small.

[0068] Therefore, in order to prevent cracking and breakage between the corner body 3 and the inner water-cutting body 2, anti-cracking features have been added to the connection part of the corner body 3, which effectively avoids the risk of cracking at the corner body 3 and improves the durability and reliability of the parts.

[0069] Specifically, since the corner connector body 3 is connected to the inner water-cutting body 2 at the second mating surface 36, a crack-resistant plate 6 is provided at the contact portion between the second mating surface 36 and the inner water-cutting body 2. The crack-resistant plate 6 is provided on both sides of the mounting groove 31. Further, the crack-resistant plate 6 includes a first crack-resistant plate 61 and a second crack-resistant plate 62. A portion of the first crack-resistant plate 61 and the second crack-resistant plate 62 are attached to the outer wall of the corner connector body 3 by injection molding, and the other portion is attached to the outer wall of the inner water-cutting body 2.

[0070] Based on the aforementioned relationship between the corner body 3 and the inner water-cutting body 2, which are separately heat-sealed, both the anti-crack plate 6 and the corner body 3 are made of thermoplastic vulcanized rubber and are integrally molded by thermoplastic. The ends of the inner water-cutting body 2 are heat-sealed with the corner body 3, which can ensure the connection strength, avoid the risk of cracking, and at the same time form an elastic corner body 3 structure, which is convenient for elastic extrusion and heat-sealing connection.

[0071] The corner body 3 has measurement marking points, specifically including measurement marking strips 38 set on the top wall of the shoulder platform 33. This is beneficial for the control and inspection of part length during the production process, improving production efficiency. It also effectively avoids the problem of the inner water cutter body 2 moving back and forth on the door when using the foam bonding method for assembly, which causes a large gap at one end of the inner water cutter body 2 to fail to seal. This has a significant effect on improving the airtightness of the whole vehicle.

[0072] See Figure 8The present invention also provides a door assembly, including a front sheet metal 7, a rear sheet metal 8, and the aforementioned inner water-cutting end bracket. The inner water-cutting end bracket is connected to both ends of the inner water-cutting body 2 and is elastically engaged with the front sheet metal 7 and the rear sheet metal 8, respectively.

[0073] The door assembly in this invention can effectively improve the sealing performance of the car window glass 9 and improve the quality of the product.

[0074] It should be noted that, where there is no conflict, the features in the embodiments of this application can be combined with each other.

[0075] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A door inner water-cutting end bracket, installed between the door sheet metal and the inner water-cutting body, characterized in that, include: The corner connector body is made of elastic material and is elastically fastened to the door sheet metal. The end of the inner water-cutting body is integrally connected to the corner connector body. The corner body includes an open mounting groove and a claw disposed inside the mounting groove, and the door sheet metal is elastically pressed into the mounting groove by the claw.

2. The water-cut end joint of the car door according to claim 1, characterized in that, The first sealing surface of the corner body is provided on one side wall of the mounting groove, and the claws are arranged opposite each other on the other side of the first sealing surface.

3. The water-cut end joint of the car door according to claim 2, characterized in that, The top of the mounting slot is provided with a shoulder, and the side wall of the shoulder forms the second sealing surface of the corner body. The corner body includes a sealing lip located on the side.

4. The water-cut end joint of the car door according to claim 3, characterized in that, The door sheet metal includes an inner door panel and a door frame reinforcement plate. The outer side wall of the door frame reinforcement plate is attached to the first sealing surface, and the edges of the inner door panel and the door frame reinforcement plate are attached to the second sealing surface. The sealing lip is elastically pressed against the inner side wall of the inner door panel.

5. The end joint of the water-cutting device inside the car door according to claim 1, characterized in that, The corner connector body includes a first mating surface and a second mating surface, which are respectively connected to the inner water-cutting body. The corner connector body includes a connecting bend, the first mating surface is disposed at the bent end of the connecting bend, and the second mating surface includes the longitudinal section of the corner connector body located at the mounting groove.

6. The water-cut end joint of the car door according to claim 5, characterized in that, A crack-resistant plate is provided at the junction of the second mating surface and the inner water-cutting body, and the crack-resistant plate is provided on both sides of the mounting groove; One part of the anti-crack plate is attached to the corner body, and the other part is attached to the inner water-cutting body.

7. The water-cut end joint of the car door according to claim 6, characterized in that, Both the anti-crack plate and the corner joint body are made of thermoplastic vulcanized rubber and are integrally molded by thermoplastic molding. The end of the inner water-cutting body is heat-sealed to the corner joint body.

8. The water-cut end joint of the car door according to claim 3, characterized in that, The top wall of the shoulder platform is provided with measuring marking strips.

9. A door assembly, characterized in that, It includes a front sheet metal part of the car door, a rear sheet metal part of the car door, and an inner water-cutting end joint of the car door as described in any one of claims 1-8. The inner water-cutting end joint of the car door is connected to both ends of the inner water-cutting body and is elastically snapped to the front sheet metal part of the car door and the rear sheet metal part of the car door, respectively.

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