Encapsulation assembly and manufacturing method therefor, vehicle window glass assembly, and vehicle

Abstract

The present application provides an encapsulation assembly and a manufacturing method therefor, a vehicle window glass assembly, and a vehicle. The encapsulation assembly is applied to a vehicle, and the vehicle comprises vehicle window glass. The encapsulation assembly comprises an encapsulation member, and a decorative layer arranged on one side of the encapsulation member. The encapsulation member is used for wrapping the vehicle window glass, the decorative layer is used for decorating the vehicle, and the decorative layer is obtained from a polyurethane injection-molding material by means of an injection-molding process. In the present application, the decorative layer obtained from the polyurethane injection-molding material by means of the injection-molding process is arranged on the encapsulation member, such that the processing and production are facilitated, and no bright decorative strip in the related art needs to be used, thereby reducing the production cost and improving the aesthetics of products. In addition, the decorative layer has high hardness, such that the shrinkage problem caused by the encapsulation member can be overcome, the dimensional stability of the encapsulation assembly can be enhanced, the problem of optical distortion on the surface of a black bright decorative strip can be effectively prevented, and the durability of the encapsulation assembly can also be effectively improved.

Description

Edge covering assembly, method for manufacturing the same, vehicle window glass assembly, and vehicle

[0001]

[0002] The present disclosure claims priority to the Chinese patent application No. 202411247683.0, filed on September 6, 2024, and entitled "Edge covering assembly, method for manufacturing the same, vehicle window glass assembly, and vehicle", the entire content of which is incorporated herein by reference. TECHNICAL FIELD

[0003] The present application belongs to the technical field of edge covering assembly, and particularly relates to an edge covering assembly, a method for manufacturing the same, a vehicle window glass assembly, and a vehicle. BACKGROUND

[0004] In vehicles, bright decorative strips are often used to improve the appearance and high-end feel of products. However, the bright decorative strips of the related art are easily damaged and expensive due to the need for special processing and manufacturing processes during molding. Moreover, although black bright decorative strips are gradually accepted by the market, the surface thereof is prone to light distortion. Therefore, the bright decorative strips in the related art are easily damaged, affecting the overall appearance of the vehicle. SUMMARY

[0005] In view of this, the first aspect of the present application provides an edge covering assembly applied to a vehicle, the vehicle comprising a vehicle window glass, the edge covering assembly comprising an edge covering member and a decorative layer arranged on one side of the edge covering member, the edge covering member being used to wrap the vehicle window glass, and the decorative layer being used to decorate the vehicle, the decorative layer being obtained by injection molding of a polyurethane injection molding material through an injection molding process.

[0006] The edge covering assembly provided by the first aspect of the present application is composed of a decorative layer and an edge covering member. The decorative layer is obtained by injection molding of a polyurethane injection molding material through an injection molding process. The polyurethane injection molding material has a sufficiently low viscosity and high fluidity, so the injection molding pressure is small, and it can be applied to the surface of the edge covering member as a surface coating. The surface of the decorative layer obtained in this way can exhibit typical high gloss and beautiful 3-D depth as well as luxurious appearance effects, and the surface of the decorative layer itself is smooth and bright, with more beautiful surface visual effects, improving the appearance of the vehicle and meeting the pursuit of consumers for high-quality perfect appearance. Moreover, the decorative layer does not require additional polishing treatment, reducing production costs and improving production efficiency.

[0007] In addition, polyurethane has self-repairing properties. If the decorative layer has surface scratches due to careless use, the self-healing effect of polyurethane can provide additional protection for the surface of the decorative layer, so that the surface of the decorative layer always maintains a perfect appearance, greatly improving the scratch resistance.

[0008] In addition, the polyurethane material has high hardness, which can play a role of a plastic skeleton to increase the dimensional stability of the edge covering assembly. The edge covering assembly can not only prevent the edge covering part from being pressed and collapsed, but also prevent the surface light distortion of the decorative layer after rebounding.

[0009] Therefore, the application sets the decorative layer obtained by the injection molding process of the polyurethane injection molding material on the edge covering part, which is convenient for processing and production, does not need to use the bright decorative strip in the related art, reduces the production cost and improves the product appearance. In addition, the decorative layer has high hardness, which can overcome the shrinkage problem caused by the edge covering part, increase the dimensional stability of the edge covering assembly, effectively avoid the problem of surface light distortion of the black bright decorative strip, and effectively improve the durability of the edge covering assembly.

[0010] The edge covering part includes a first edge covering part and a second edge covering part connected to the first edge covering part. The first edge covering part is used to wrap the vehicle window glass. The second edge covering part is farther away from the vehicle window glass than the first edge covering part. The decorative layer is arranged on one side of the second edge covering part. The second edge covering part is provided with at least one groove for accommodating part of the decorative layer.

[0011] The decorative layer includes a first end and a second end arranged oppositely. The second end is farther away from the first edge covering part than the first end. The second edge covering part is provided with a first groove for accommodating the first end.

[0012] The second edge covering part is further provided with a second groove for accommodating the second end.

[0013] The second edge covering part includes a mounting surface for connecting the first edge covering part and a side surface bent to connect the mounting surface. The mounting surface is used to mount the decorative layer. The edge covering assembly satisfies one of the following conditions:

[0014] The second groove is arranged on the mounting surface.

[0015] The decorative layer is further arranged on the side surface, and the second groove is arranged on the side surface.

[0016] The width of the groove gradually decreases in the arrangement direction of the groove bottom wall pointing to the groove opening.

[0017] The depth H1 of the groove satisfies the following condition: 0.5mm≤H1≤3mm; and / or, the opening width H2 of the groove satisfies the following condition: 0.5mm≤H2≤3mm.

[0018] The edge covering assembly further includes a bonding layer arranged between the decorative layer and the edge covering part, which is used to bond and connect the decorative layer and the edge covering part.

[0019] The second edge covering part comprises a mounting surface for connecting the first edge covering part, and the mounting surface is provided with a through hole penetrating through the second edge covering part, and the through hole is used for accommodating part of the decorative layer.

[0020] The decorative layer further comprises a limiting part provided on the side of the second edge covering part away from the mounting surface, the limiting part is arranged corresponding to the through hole, and the width of the limiting part is greater than the diameter of the through hole.

[0021] The edge covering assembly further comprises a bearing part embedded in the edge covering part, the adhesive layer is arranged on the side of the bearing part away from the edge covering part, and the decorative layer is arranged on the side of the adhesive layer away from the bearing part.

[0022] The edge covering part further comprises a rough area for mounting the decorative layer, the surface of the rough area is roughened, and the decorative layer is arranged on the rough area.

[0023] In the stacking direction from the edge covering part to the decorative layer, the thickness T of the decorative layer satisfies the following condition: 0.2mm≤T≤2mm.

[0024] The decorative layer is capable of transmitting light, and the edge covering assembly further comprises a light guide part arranged between the decorative layer and the edge covering part, the light guide part comprises a light emitting part and a light guide strip arranged on one side of the light emitting part, the light emitted by the light emitting part can be conducted from the light guide strip and emitted through the decorative layer.

[0025] The edge covering part comprises a first edge covering part and a second edge covering part connected to the first edge covering part, the first edge covering part is used for wrapping the vehicle window glass, the second edge covering part is away from the vehicle window glass compared with the first edge covering part, the light guide part is arranged on one side of the second edge covering part, the second edge covering part is provided with at least one groove and at least one clamping groove, the groove is used for accommodating part of the decorative layer, and the clamping groove is used for accommodating part of the light guide part.

[0026] The clamping groove is communicated with the groove, the depth of the clamping groove is greater than the depth of the groove, and the light guide part and the second edge covering part are arranged to form the groove.

[0027] The polyurethane injection molding material comprises at least one of polyurethane (PUR) and polyurea (PUA).

[0028] The second aspect of the present application provides a vehicle window glass assembly, the vehicle window glass assembly comprising a vehicle window glass and an edge covering assembly provided by the first aspect of the present application, and the edge covering part of the edge covering assembly wraps the vehicle window glass.

[0029] The vehicle provided by the third aspect of the present application adopts the edge covering assembly provided by the first aspect of the present application, the edge covering assembly is provided with the decorative layer obtained by the polyurethane injection material through the injection molding process on the edge covering element, which facilitates the processing and production, and the bright trim strip in the related art is not needed, thereby reducing the production cost and improving the product appearance. In addition, the decorative layer has strong hardness, can overcome the shrinkage problem caused by the edge covering element, enhance the dimensional stability of the edge covering assembly, effectively avoid the problem of surface light distortion of the black bright trim strip, and effectively improve the durability of the edge covering assembly.

[0030] The vehicle provided by the third aspect of the present application adopts the edge covering assembly provided by the first aspect of the present application, the edge covering assembly is provided with the decorative layer obtained by the polyurethane injection material through the injection molding process on the edge covering element, which facilitates the processing and production, and the bright trim strip in the related art is not needed, thereby reducing the production cost and improving the product appearance. In addition, the decorative layer has strong hardness, can overcome the shrinkage problem caused by the edge covering element, enhance the dimensional stability of the edge covering assembly, effectively avoid the problem of surface light distortion of the black bright trim strip, and effectively improve the durability of the edge covering assembly.

[0031] The vehicle provided by the third aspect of the present application adopts the edge covering assembly provided by the first aspect of the present application, the edge covering assembly is provided with the decorative layer obtained by the polyurethane injection material through the injection molding process on the edge covering element, which facilitates the processing and production, and the bright trim strip in the related art is not needed, thereby reducing the production cost and improving the product appearance. In addition, the decorative layer has strong hardness, can overcome the shrinkage problem caused by the edge covering element, enhance the dimensional stability of the edge covering assembly, effectively avoid the problem of surface light distortion of the black bright trim strip, and effectively improve the durability of the edge covering assembly.

[0032] The preparation method of the edge covering assembly provided by the fourth aspect of the present application comprises:

[0033] obtaining the edge covering element through the injection molding process;

[0034] covering part of the edge covering element with the polyurethane injection material, and obtaining the decorative layer provided on one side of the edge covering element through the injection molding process;

[0035] obtaining the edge covering assembly, the edge covering element is used for wrapping the vehicle window glass, and the decorative layer is used for decorating the vehicle.

[0036] The edge covering assembly provided by the fourth aspect of the present application is provided with the decorative layer obtained by the polyurethane injection material through the injection molding process on the edge covering element, which facilitates the processing and production, and the bright trim strip in the related art is not needed, thereby reducing the production cost and improving the product appearance. In addition, the decorative layer has strong hardness, can overcome the shrinkage problem caused by the edge covering element, enhance the dimensional stability of the edge covering assembly, effectively avoid the problem of surface light distortion of the black bright trim strip, and effectively improve the durability of the edge covering assembly. BRIEF DESCRIPTION OF DRAWINGS

[0037] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments of the present application will be described below.

[0038] Fig. 1 is a perspective view of a hemming assembly according to an embodiment of the present application.

[0039] Fig. 2 is a perspective view of a hemming assembly according to another embodiment of the present application.

[0040] Fig. 3 is a cross-sectional view of a hemming assembly according to an embodiment of the present application.

[0041] Fig. 4 is a cross-sectional view of a hemming assembly according to an embodiment of the present application.

[0042] Fig. 5 is a cross-sectional view of a hemming assembly according to an embodiment of the present application.

[0043] Fig. 6 is a cross-sectional view of a hemming assembly according to an embodiment of the present application.

[0044] Fig. 7 is a cross-sectional view of a hemming assembly according to an embodiment of the present application.

[0045] Fig. 8 is a cross-sectional view of a hemming assembly according to an embodiment of the present application.

[0046] Fig. 9 is a cross-sectional view of a hemming assembly according to an embodiment of the present application.

[0047] Fig. 10 is a cross-sectional view of a hemming assembly according to an embodiment of the present application.

[0048] Fig. 11 is a cross-sectional view of a hemming assembly according to an embodiment of the present application.

[0049] Fig. 12 is a cross-sectional view of a hemming assembly according to an embodiment of the present application.

[0050] Fig. 13 is a cross-sectional view of a hemming assembly according to an embodiment of the present application.

[0051] Fig. 14 is a cross-sectional view of a hemming assembly according to an embodiment of the present application.

[0052] Fig. 15 is a cross-sectional view of a hemming assembly according to an embodiment of the present application.

[0053] Fig. 16 is a cross-sectional view of a hemming assembly according to an embodiment of the present application.

[0054] Fig. 17 is a flow chart of a method for manufacturing a hemming assembly according to an embodiment of the present application.

[0055] Label explanation: edge covering assembly 1, edge covering part 11, first edge covering part 111, second edge covering part 112, groove 1121, first groove 1121a, second groove 1121b, mounting surface 1122, side surface 1123, rough area 113, clamping groove 1124, first clamping groove 1124a, second clamping groove 1124b, back surface 1125, through hole 1126, decorative layer 12, first end 121, second end 122, limiting part 123, adhesive layer 13, bearing part 14, light guide part 15, third end 151, fourth end 152, vehicle window glass 2.

[0056] Embodiments of the present application

[0057] The following are the preferred embodiments of the present application. It should be pointed out that for ordinary skilled in the art, without departing from the principles of the present application, a number of improvements and refinements can be made, which are also considered within the scope of protection of the present application.

[0058] Unless otherwise stated or contradictory, the terms or phrases used in the present application have the following meanings:

[0059] In the present application, "first", "second", etc. are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features.

[0060] In the present application, it should be understood that the terms "width", "upper", "lower", "front", "rear", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0061] In the present application, unless otherwise specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, it can be connected, or it can be detachably connected, or it can be integrated. It can be mechanical connection, or electrical connection. It can be directly connected, or indirectly connected through an intermediate medium. It can be the internal communication of two elements or the interaction relationship between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0062] In the related art, the appearance surface of the edge covering part without the bright trim strip is difficult to achieve high black and bright effect. If the bright trim strip is used, the appearance modeling diversification is difficult to be achieved due to the molding process of the bright trim strip. Moreover, the molding process of the bright trim strip limits the size precision of the product, and the integral injection molding with the edge covering part is easy to generate the flash, and the post-processing trimming is easy to scratch the appearance surface of the bright trim strip. In addition, if the edge covering part is too thick, the edge covering part is prone to shrinkage and deformation, thereby pulling the surface of the bright trim strip, causing the bright trim strip to generate light distortion, and affecting the product appearance. Therefore, the decorative layer is used instead of the bright trim strip in the related art, which not only can improve the product appearance, but also can achieve diversification and reduce cost.

[0063] Please refer to FIGS. 1-8, FIG. 1 is a perspective view of an edge covering assembly according to an embodiment of the present application. FIG. 2 is a perspective view of an edge covering assembly according to another embodiment of the present application. FIG. 3 is a cross-sectional view of an edge covering assembly according to an embodiment of the present application. FIG. 4 is a cross-sectional view of an edge covering part according to an embodiment of the present application. FIG. 5 is a cross-sectional view of an edge covering assembly according to an embodiment of the present application. FIG. 6 is a cross-sectional view of an edge covering part according to an embodiment of the present application. FIG. 7 is a cross-sectional view of an edge covering assembly according to an embodiment of the present application. FIG. 8 is a cross-sectional view of an edge covering part according to an embodiment of the present application.

[0064] The present embodiment provides an edge covering assembly 1 applied to a vehicle, the vehicle comprising a vehicle window glass 2, the edge covering assembly 1 comprising an edge covering part 11 and a decorative layer 12 disposed on one side of the edge covering part 11, the edge covering part 11 being used to wrap the vehicle window glass 2, and the decorative layer 12 being used to decorate the vehicle, the decorative layer 12 being obtained by injection molding process of polyurethane injection molding material.

[0065] The edge covering assembly 1 provided by the present embodiment comprises an edge covering part 11 for wrapping a vehicle window glass 2. The material of the edge covering part 11 comprises at least one of PU, PVC and TPE. The edge covering part 11 is obtained by injection molding process. The shape of the edge covering part 11 is adapted to the shape of the vehicle window glass 2. The vehicle window glass 2 can be a front windshield, or a side window glass, or an angle window glass, or a rear windshield, or a sunroof glass, etc. Optionally, the edge covering part 11 comprises a first edge covering part 111 for wrapping the vehicle window glass 2, and a second edge covering part 112 connected to the first edge covering part 111. Optionally, the second edge covering part 112 is used to lap the body fitting part of the vehicle.

[0066] The hardness of the trim part 11 is less than the hardness of the decorative layer 12. Optionally, the hardness of the trim part 11 is 50A-95A. Optionally, the Shore hardness of the decorative layer 12 is 80D-60A. For example, the Shore hardness of the decorative layer 12 can be 80D, or 100D, or 20A, or 30A, or 40A, or 50A, or 60A, etc.

[0067] The trim assembly 1 provided by the embodiment further comprises a decorative layer 12 for decorating the vehicle. The decorative layer 12 is obtained by an injection molding process using a polyurethane injection molding material. Optionally, the polyurethane injection molding material comprises at least one of polyurethane (PUR) and polyurea (PUA). Optionally, the polyurethane injection molding material is liquid. The decorative layer 12 is capable of allowing light to pass through; or the decorative layer 12 has a specific color so that light cannot pass through. The decorative layer 12 can be arranged on the outside of the vehicle as an exterior decoration of the vehicle. The decorative layer 12 can also be arranged on the inside of the vehicle as an interior decoration of the vehicle.

[0068] In one embodiment, as shown in FIG. 5, along the stacking direction of the trim part 11 to the decorative layer 12, the thickness T of the decorative layer 12 satisfies the following condition: 0.2mm≤T≤2mm.

[0069] For example, the thickness T of the decorative layer 12 can be 0.2mm, or 0.4mm, or 0.6mm, or 0.8mm, or 1mm, or 1.2mm, or 1.4mm, or 1.6mm, or 1.8mm, or 2mm, etc. By limiting the thickness of the decorative layer 12 to 0.2mm-2mm, the embodiment can not only make the decorative layer 12 have a thin high-gloss surface, but also reduce production costs.

[0070] The polyurethane injection molding material has sufficiently low viscosity and high flowability, so the injection molding pressure is small, and it can be applied to the surface of the trim part 11 as a surface coating. The surface of the decorative layer 12 obtained in this way can exhibit typical high gloss and beautiful 3-D depth and luxurious appearance effects, and the surface of the decorative layer 12 itself is smooth and bright, the surface visual effect is more beautiful, the appearance of the vehicle is improved, and the pursuit of high-quality perfect appearance by consumers is met. Moreover, the decorative layer 12 does not need additional polishing treatment, which reduces production costs and improves production efficiency.

[0071] In addition, polyurethane has self-repairing properties. If the decorative layer 12 has surface scratches due to careless use, the self-healing effect of polyurethane can provide additional protection to the surface of the decorative layer 12, so that the surface of the decorative layer 12 always maintains a perfect appearance, and the scratch resistance is greatly improved.

[0072] In addition, the polyurethane material has high hardness, which can play a role of a plastic skeleton to increase the dimensional stability of the edge covering assembly 1, and can prevent the edge covering part 11 from being pressed to collapse and the surface light distortion of the decorative layer 12 after rebounding.

[0073] Therefore, the embodiment sets the decorative layer 12 obtained by the injection molding process of the polyurethane injection molding material on the edge covering part 11, which is convenient for processing and production, does not need to use the bright decorative strip in the related art, reduces the production cost and improves the product appearance. In addition, the decorative layer 12 has high hardness, which can overcome the shrinkage problem caused by the edge covering part 11, increase the dimensional stability of the edge covering assembly 1, effectively avoid the problem of surface light distortion of the black bright decorative strip, and effectively improve the durability of the edge covering assembly 1.

[0074] Please refer to FIGS. 3-8, in an embodiment, the edge covering part 11 includes a first edge covering part 111 and a second edge covering part 112 connected to the first edge covering part 111, the first edge covering part 111 is used to wrap the vehicle window glass 2, the second edge covering part 112 is away from the vehicle window glass 2 compared with the first edge covering part 111, the decorative layer 12 is arranged on one side of the second edge covering part 112, and the second edge covering part 112 is provided with at least one groove 1121 for accommodating part of the decorative layer 12.

[0075] The edge covering part 11 includes the first edge covering part 111 and the second edge covering part 112. The shape of the first edge covering part 111 is matched with the shape of the vehicle window glass 2. Optionally, the first edge covering part 111 is bent to connect the second edge covering part 112. The decorative layer 12 is arranged on the surface of the second edge covering part 112 and in the groove 1121. The number of the groove 1121 is one or more.

[0076] Since the materials of the edge covering part 11 and the decorative layer 12 are not compatible, the connection performance between the edge covering part 11 and the decorative layer 12 is poor. In the embodiment, the groove 1121 is arranged on the second edge covering part 112 of the edge covering part 11. In the injection molding process, the liquid polyurethane injection molding material can flow into the groove 1121 to fill the groove 1121. After the liquid polyurethane injection molding material is hardened, part of the decorative layer 12 arranged in the groove 1121 can provide a fixed mechanical clamping force, so that the decorative layer 12 is firmly fixed on the edge covering part 11, and the connection performance between the edge covering part 11 and the decorative layer 12 is improved.

[0077] In an embodiment, as shown in FIG. 6, the depth H1 of the groove 1121 satisfies the following condition: 0.5mm≤H1≤3mm; and / or, the opening width H2 of the groove 1121 satisfies the following condition: 0.5mm≤H2≤3mm.

[0078] For example, the depth H1 of the groove 1121 can be 0.5 mm, or 0.8 mm, or 1 mm, or 1.2 mm, or 1.5 mm, or 1.8 mm, or 2 mm, or 2.2 mm, or 2.5 mm, or 2.8 mm, or 3 mm, etc. For another example, the opening width H2 of the groove 1121 can be 0.5 mm, or 0.8 mm, or 1 mm, or 1.2 mm, or 1.5 mm, or 1.8 mm, or 2 mm, or 2.2 mm, or 2.5 mm, or 2.8 mm, or 3 mm, etc.

[0079] The embodiment can not only facilitate the polyurethane injection material to flow into the groove 1121, but also make the overall thickness of the decorative layer 12 smaller, improve the aesthetic degree of the decorative layer 12, and improve the product texture of the decorative layer 12, by limiting the depth of the groove 1121 to 0.5-3 mm and limiting the opening width of the groove 1121 to 0.5-3 mm.

[0080] Referring to FIGS. 3-8, in an embodiment, the decorative layer 12 includes a first end 121 and a second end 122 arranged oppositely, the second end 122 is farther away from the first edge portion 111 than the first end 121, and the second edge portion 112 is provided with a first groove 1121a for accommodating the first end 121.

[0081] The first end 121 is close to the first edge portion 111, and the second end 122 is away from the first edge portion 111. The groove 1121 includes a first groove 1121a arranged at a portion of the second edge portion 112 close to the first edge portion 111. The first end 121 abuts against a groove wall of the first groove 1121a. The first end 121 is arranged in the first groove 1121a, which can also be understood as that the first end 121 is embedded in the first groove 1121a. Optionally, the first groove 1121a is arranged along the extension direction of the second edge portion 112.

[0082] The embodiment can not only improve the connection performance between the edge covering member 11 and the decorative layer 12, but also enable the first groove 1121a to function as a positioning element for the decorative layer 12 when the decorative layer 12 is prepared, thereby reducing the preparation difficulty and realizing the diversification of the decorative layer 12.

[0083] Referring to FIGS. 3-8, in an embodiment, the second edge portion 112 is further provided with a second groove 1121b for accommodating the second end 122.

[0084] The groove 1121 further comprises a second groove 1121b, which is arranged at a portion of the second wrapping part 112 away from the first wrapping part 111. The second end 122 abuts a groove wall of the second groove 1121b. The second end 122 is arranged in the second groove 1121b, and it can also be understood that the second end 122 is embedded in the second groove 1121b. Optionally, the second groove 1121b is arranged along an extension direction of the second wrapping part 112. Optionally, the first groove 1121a is communicated with the second groove 1121b, forming a ring-shaped groove 1121.

[0085] The second end 122 is arranged in the second groove 1121b, and the opposite ends of the decorative layer 12 are both arranged in the groove 1121, which not only further improves the connection performance between the wrapping part 11 and the decorative layer 12, but also enables the first groove 1121a and the second groove 1121b to cooperate with each other, thereby playing a role of positioning the decorative layer 12 when the decorative layer 12 is prepared, further reducing the preparation difficulty, and realizing the diversification of the decorative layer 12.

[0086] Please refer to FIGS. 4-8, in an embodiment, the second wrapping part 112 comprises a mounting surface 1122 for connecting the first wrapping part 111, and a side surface 1123 bently connected to the mounting surface 1122, the mounting surface 1122 being used for mounting the decorative layer 12; the wrapping assembly 1 satisfies one of the following conditions: the second groove 1121b is arranged at the mounting surface 1122.

[0087] The decorative layer 12 is arranged at the mounting surface 1122 and does not cover the side surface 1123. The second groove 1121b is arranged at the mounting surface 1122, and the second end 122 covers the mounting surface 1122 and is arranged in the second groove 1121b.

[0088] Alternatively, the decorative layer 12 is further arranged at the side surface 1123, and the second groove 1121b is arranged at the side surface 1123.

[0089] The decorative layer 12 is not only arranged at the mounting surface 1122 but also covers the side surface 1123. The second groove 1121b is arranged at the side surface 1123, and the second end 122 covers the side surface 1123 and is arranged in the second groove 1121b. The embodiment further improves the connection performance between the wrapping part 11 and the decorative layer 12 by increasing the contact area of the decorative layer 12 and the wrapping part 11 and arranging the second groove 1121b at the side surface 1123.

[0090] Optionally, the second wrapping part 112 further comprises a lap surface arranged opposite to the mounting surface 1122, the lap surface being bently connected to the side surface 1123, the lap surface being used for lapping a vehicle body matching part, and the second groove 1121b penetrates through the side surface 1123 and the lap surface.

[0091] Please refer to FIG. 9, which is a cross-sectional view of the edge covering part according to an embodiment of the present application. In an embodiment, the width of the groove 1121 gradually decreases along the arrangement direction of the groove 1121 from the bottom wall to the opening of the groove 1121.

[0092] The width of the groove 1121 gradually decreases, in other words, the shape of the groove 1121 is trapezoidal, the width of the groove 1121 near the bottom wall is large, and the width of the groove 1121 near the opening is small. By limiting the shape of the groove 1121, the decorative layer 12 formed by the hardened polyurethane injection material is difficult to fall off from the groove 1121, further improving the fixed mechanical clamping force provided by the part of the decorative layer 12 arranged in the groove 1121, thereby further improving the connection performance between the edge covering part 11 and the decorative layer 12.

[0093] Please refer to FIG. 10, which is a cross-sectional view of the edge covering assembly according to an embodiment of the present application. In an embodiment, the second edge covering part 112 includes a mounting surface 1122 for connecting the first edge covering part 111, and a back surface 1125 opposite to the mounting surface 1122, the mounting surface 1122 is used to mount the decorative layer 12, the second edge covering part 112 is provided with a through hole 1126 penetrating the mounting surface 1122 and the back surface 1125, and the through hole 1126 is used to accommodate part of the decorative layer 12.

[0094] The number of through holes 1126 is one or more. When the number of through holes 1126 is more than one, the plurality of through holes 1126 are arranged at intervals. The through hole 1126 is located between the first groove 1121a and the second groove 1121b. The through hole 1126 penetrates the mounting surface 1122 and the back surface 1125, which can also be understood as the through hole 1126 penetrating the second edge covering part 112 along the thickness direction of the second edge covering part 112. The decorative layer 12 is arranged in the through hole 1126 by the injection molding process to fill the through hole 1126.

[0095] In an embodiment, the second edge covering part 112 is provided with a through hole 1126, and in the injection molding process, the liquid polyurethane injection material can flow into the through hole 1126 to fill the through hole 1126. After the liquid polyurethane injection material hardens, the part of the decorative layer 12 arranged in the through hole 1126 can provide a fixed mechanical clamping force, and the design of the through hole 1126 in cooperation with the groove 1121 can further improve the connection performance between the edge covering part 11 and the decorative layer 12, so that the decorative layer 12 is more firmly fixed on the edge covering part 11.

[0096] Please refer to Fig. 10, in an embodiment, the decorative layer 12 further comprises a limiting part 123, the limiting part 123 is arranged on the back surface 1125, the limiting part 123 is arranged corresponding to the through hole 1126, and the width of the limiting part 123 is greater than the diameter of the through hole 1126.

[0097] The shape of the limiting part 123 can be circular, quadrilateral, trapezoidal, etc., which is not limited in the embodiment. The limiting part 123 is arranged outside the through hole 1126, and since the width of the limiting part 123 is greater than the diameter of the through hole 1126, the position of the decorative layer 12 on the second edge covering part 112 is limited, and the decorative layer 12 is prevented from falling off from the second edge covering part 112.

[0098] In the injection molding process, the liquid polyurethane injection material can flow outside the through hole 1126 to form the limiting part 123. After the liquid polyurethane injection material hardens, the limiting part 123 is arranged on the back surface 1125 of the second edge covering part 112 to prevent the decorative layer 12 from falling off, and the connection performance between the edge covering part 11 and the decorative layer 12 can be further improved, so that the decorative layer 12 is more firmly fixed on the edge covering part 11.

[0099] Please refer to Fig. 11, which is a cross-sectional view of the edge covering assembly provided by an embodiment of the present application. In an embodiment, the edge covering assembly 1 further comprises a bonding layer 13 arranged between the decorative layer 12 and the edge covering part 11, for bonding and connecting the decorative layer 12 and the edge covering part 11.

[0100] Since there is a problem of incompatibility between the material of the edge covering part 11 and the material of the decorative layer 12, the connection performance between the edge covering part 11 and the decorative layer 12 is poor. The embodiment adds a bonding layer 13 between the decorative layer 12 and the edge covering part 11, and uses the bonding layer 13 to bond and connect the decorative layer 12 and the edge covering part 11, so that the decorative layer 12 is firmly fixed on the edge covering part 11, and the connection performance between the edge covering part 11 and the decorative layer 12 is improved.

[0101] Please refer to Fig. 12, which is a cross-sectional view of the edge covering assembly provided by an embodiment of the present application. In an embodiment, the edge covering assembly 1 further comprises a bearing part 14 embedded in the edge covering part 11, the bonding layer 13 is arranged on the side of the bearing part 14 away from the edge covering part 11, and the decorative layer 12 is arranged on the side of the bonding layer 13 away from the bearing part 14.

[0102] The edge covering assembly 1 provided by the embodiment further comprises a carrier 14 for carrying the adhesive layer 13. The material of the carrier 14 comprises PC / PA / PP / ABS and other thermosetting hard plastics. These materials are compatible with polyurethane injection materials, including polyurethane (PUR) and polyurea (PUA), and have good adhesion. The carrier 14 is embedded in the edge covering member 11. The carrier 14 and the edge covering member 11 are in an integrated structure. The carrier 14 and the edge covering member 11 are injection molded together. For example, a carrier 14 with a certain shape is placed in an edge covering mold, and the carrier 14 and the edge covering member 11 are injection molded together with the vehicle window glass 2.

[0103] In addition, the carrier 14 is embedded in the edge covering member 11 and injection molded together with the edge covering member 11. The carrier 14 can increase the strength of the edge covering member 11 and reduce the shrinkage marks of the edge covering member 11.

[0104] The embodiment sets the carrier 14 embedded in the edge covering member 11 and sets the adhesive layer 13 on the carrier 14, thereby improving the connection performance between the adhesive layer 13 and the edge covering member 11. The adhesive layer 13 adhesively connects the carrier 14 and the decorative layer 12, further improving the connection performance between the edge covering member 11 and the decorative layer 12.

[0105] Referring to FIG. 3, in an embodiment, the edge covering member 11 further comprises a rough area 113 for mounting the decorative layer 12. The surface of the rough area 113 is roughened. The decorative layer 12 is arranged on the rough area 113.

[0106] The edge covering member 11 provided by the embodiment comprises a rough area 113. The rough area 113 is used for mounting the decorative layer 12. The surface of the rough area 113 is roughened. Without limitation, the roughening can be a mechanical or chemical treatment of the surface of the edge covering member (mechanical wear or chemical corrosion). For example, a smooth skin layer on the surface of the edge covering member 11 can be polished away to form the rough area 113.

[0107] The embodiment sets the rough area 113 with roughened surface on the edge covering member 11 and sets the decorative layer 12 on the rough area 113, thereby improving the bonding force and connection performance between the surface of the edge covering member 11 and the decorative layer 12.

[0108] Optionally, the edge covering assembly 1 further comprises an adhesive layer 13 arranged on the rough area 113. The adhesive layer 13 is used to adhesively connect the decorative layer 12 and the edge covering member 11. The embodiment sets the adhesive layer 13 on the rough area 113 and adhesively connects the edge covering member 11 and the decorative layer 12 by using the adhesive layer 13, thereby further improving the connection performance between the edge covering member 11 and the decorative layer 12.

[0109] Please refer to Figs. 13-16, Fig. 13 is a cross-sectional view of the edge covering assembly according to an embodiment of the present application. Fig. 14 is a cross-sectional view of the edge covering member and the light guide according to an embodiment of the present application. Fig. 15 is a cross-sectional view of the edge covering assembly according to an embodiment of the present application. Fig. 16 is a cross-sectional view of the edge covering member according to an embodiment of the present application.

[0110] In one embodiment, the decorative layer 12 is transparent to light, and the edge covering assembly 1 further comprises a light guide 15 disposed between the decorative layer 12 and the edge covering member 11. The light guide 15 comprises a light emitting portion and a light guide strip disposed on one side of the light emitting portion. The light emitting portion emits light which is conducted by the light guide strip and transmitted through the decorative layer 12.

[0111] The edge covering assembly 1 according to the present embodiment further comprises a light guide 15. The light guide 15 comprises a light emitting portion and a light guide strip. The light emitting portion is configured to emit light. For example, the light emitting portion is a LED light source. The number of the light emitting portion is at least one. The light guide strip is configured to refract, reflect and scatter light. Optionally, the light guide strip is made of optical grade transparent acrylic or PC material. The light emitting portion is disposed on the side surface 1123 of the light guide strip and / or on the surface of the light guide strip facing the edge covering member 11. The extension direction of the light guide strip is the same as the extension direction of the edge covering member 11.

[0112] The light guide 15 and the edge covering member 11 are integrally formed. The light guide 15 and the edge covering member 11 are integrally injection molded. For example, the light guide 15 with a certain shape is placed in the edge covering mold, and the vehicle window glass 2 is integrally injection molded with the edge covering member 11.

[0113] Specifically, during the preparation of the edge covering assembly 1, the light guide 15 is integrally injection molded with the edge covering member 11 as an insert, and then the decorative layer 12 is injection molded. The decorative layer 12 and the light guide 15 do not need to be coated with an intermediate medium with adhesive properties, and they have high adhesive properties. In addition, the above preparation method does not need to provide a groove 1121 on the edge covering member 11 for mechanically clamping the decorative layer 12, which simplifies the structure and improves the preparation efficiency.

[0114] The light guide 15 is obtained by an injection molding process. Specifically, during the injection molding process, the overall structure and shape of the light guide strip ensure that the light is conducted inside, and the uniform distribution of light is achieved by reasonably arranging one or more LED light sources. For example, by controlling the color of multiple LED light sources, the overall appearance of the product can present a magical color.

[0115] The present embodiment can further improve the appearance of the product by arranging the light guide 15 between the decorative layer 12 and the edge cover 11. Moreover, since the decorative layer 12 has a high hardness, the scratch resistance of the edge cover assembly 1 is greatly improved, and the decorative layer 12 can protect the light guide 15 and reduce the probability of damage to the light guide 15.

[0116] Referring to FIGS. 13-16, in an embodiment, the edge cover 11 includes a first edge cover portion 111 for wrapping the vehicle window glass 2 and a second edge cover portion 112 connected to the first edge cover portion 111, the second edge cover portion 112 being farther away from the vehicle window glass 2 than the first edge cover portion 111, the light guide 15 being arranged on one side of the second edge cover portion 112, the second edge cover portion 112 being provided with at least one recess 1121 for accommodating part of the decorative layer 12 and at least one clamping groove 1124 for accommodating part of the light guide 15.

[0117] The light guide 15 includes a third end 151 and a fourth end 152 arranged opposite to each other, the fourth end 152 being farther away from the first edge cover portion 111 than the third end 151, the second edge cover portion 112 including a first clamping groove 1124a for accommodating the third end 151 and a second clamping groove 1124b for accommodating the fourth end 152.

[0118] The present embodiment forms the clamping groove 1124 in the second edge cover portion 112 of the edge cover 11, and part of the light guide 15 arranged in the clamping groove 1124 can provide a fixed mechanical clamping force, so that the light guide 15 is firmly fixed on the edge cover 11 and the connection between the edge cover 11 and the light guide 15 is improved.

[0119] Referring to FIGS. 13-16, in an embodiment, the clamping groove 1124 communicates with the recess 1121, the depth of the clamping groove 1124 being greater than the depth of the recess 1121, and the recess 1121 being formed by surrounding the light guide 15 and the second edge cover portion 112.

[0120] The first clamping groove 1124a communicates with the first recess 1121a, and the second clamping groove 1124b communicates with the second recess 1121b. The depth of the first clamping groove 1124a is greater than the depth of the first recess 1121a, and the depth of the second clamping groove 1124b is greater than the depth of the second recess 1121b.

[0121] The embodiment limits the position and depth of the groove 1121 and the clamping groove 1124, improves the connection performance between the edge covering part 11 and the light guide part 15, and improves the connection performance between the light guide part 15 and the decorative layer 12. The groove 1121 is formed by the light guide part 15 and the second edge covering part 112, so that the decorative layer 12 can better cover the light guide part 15, and the protective effect of the decorative layer 12 on the light guide part 15 is improved.

[0122] Referring to FIGS. 1-17, FIG. 17 is a flowchart of a preparation method of the edge covering assembly provided by an embodiment of the present application. The present application also provides a preparation method of the edge covering assembly 1, which comprises the following steps:

[0123] S100, obtaining the edge covering part 11 by an injection molding process.

[0124] In the closed edge covering mold, the edge covering part 11 is formed on the vehicle window glass 2 by injection molding.

[0125] S200, covering part of the polyurethane injection molding material 11, obtaining the decorative layer 12 on one side of the edge covering part 11 by an injection molding process.

[0126] Then, a thin layer of polyurethane injection molding material is injected on the outer layer of the edge covering part 11 by a mold to form the decorative layer 12.

[0127] The polyurethane injection molding material has low viscosity and high fluidity. The polyurethane injection molding material is injected into the cavity of the edge covering mold and solidified by chemical reaction. Because the polyurethane injection molding material is in liquid state before chemical reaction, the injection pressure is small and the operation difficulty is low.

[0128] In other words, the polyurethane injection molding material is in liquid state during injection, can flow to the surface of the edge covering part 11, and is fixedly bonded with the edge covering part 11 after a certain time of chemical reaction.

[0129] By secondary injection, the decorative layer 12 is obtained in the edge covering mold by an injection molding method. The decorative layer 12 can better cooperate with the edge covering part 11, not only can improve the appearance performance of the vehicle, but also the decorative layer 12 after injection has a certain hardness, can play a role of framework, and makes the size of the edge covering assembly 1 more stable.

[0130] S300, obtaining the edge covering assembly 1, the edge covering part 11 is used to wrap the vehicle window glass 2, and the decorative layer 12 is used to decorate the vehicle.

[0131] The edge covering assembly 1 provided by the embodiment is convenient for processing and production by arranging the decorative layer 12 obtained by the polyurethane injection molding material through the injection molding process on the edge covering part 11, without using the bright decorative strip in the related art, thereby reducing the production cost and improving the product appearance. In addition, the decorative layer 12 has strong hardness, can overcome the shrinkage problem caused by the edge covering part 11, enhance the size stability of the edge covering assembly 1, effectively avoid the problem of surface light distortion of the black bright decorative strip, and effectively improve the durability of the edge covering assembly 1.

[0132] The application also provides a vehicle window glass assembly, which comprises a vehicle window glass and the edge covering assembly provided in the application, and the edge covering part of the edge covering assembly wraps the vehicle window glass.

[0133] The vehicle window glass assembly provided by the embodiment is convenient for processing and production by arranging the decorative layer obtained by the polyurethane injection molding material through the injection molding process on the edge covering part of the edge covering assembly provided in the application, without using the bright decorative strip in the related art, thereby reducing the production cost and improving the product appearance. In addition, the decorative layer has strong hardness, can overcome the shrinkage problem caused by the edge covering part, enhance the size stability of the edge covering assembly, effectively avoid the problem of surface light distortion of the black bright decorative strip, and effectively improve the durability of the edge covering assembly.

[0134] The application also provides a vehicle, which comprises a vehicle window glass, a vehicle body matching part, and the edge covering assembly provided in the application, and the edge covering part of the edge covering assembly wraps the vehicle window glass and overlaps the vehicle body matching part.

[0135] The vehicle provided by the embodiment is convenient for processing and production by arranging the decorative layer obtained by the polyurethane injection molding material through the injection molding process on the edge covering part of the edge covering assembly provided in the application, without using the bright decorative strip in the related art, thereby reducing the production cost and improving the product appearance. In addition, the decorative layer has strong hardness, can overcome the shrinkage problem caused by the edge covering part, enhance the size stability of the edge covering assembly, effectively avoid the problem of surface light distortion of the black bright decorative strip, and effectively improve the durability of the edge covering assembly.

[0136] The above describes the content provided by the embodiments of the application in detail, and the principles and embodiments of the application are described and explained in this paper. The above description is only used to help understand the method and core idea of the application; meanwhile, for those skilled in the art, the specific embodiments and application range will be changed according to the idea of the application. In summary, the content of the specification should not be understood as a limitation of the application.

Claims

1. A hemming assembly characterized by, The application is applied to a vehicle, the vehicle comprising a window glass, the trim assembly comprising a trim part and a decorative layer arranged on one side of the trim part, the trim part being used for wrapping the window glass, and the decorative layer being used for decorating the vehicle, the decorative layer being obtained by injection molding of polyurethane injection molding material through an injection molding process.

2. The hemming assembly of claim 1, wherein, The trim part comprises a first trim part and a second trim part connected to the first trim part, the first trim part being used for wrapping the window glass, and the second trim part being away from the window glass compared with the first trim part, the decorative layer being arranged on one side of the second trim part, and the second trim part being provided with at least one groove for accommodating part of the decorative layer.

3. The hemming assembly of claim 2, wherein, The decorative layer comprises oppositely arranged first and second ends, the second end being away from the first trim part compared with the first end, and the second trim part being provided with a first groove for accommodating the first end.

4. The hemming assembly of claim 3, wherein, The second trim part is further provided with a second groove for accommodating the second end.

5. The hemming assembly of claim 4, wherein, The second trim part comprises a mounting surface for connecting the first trim part and a side surface bent to connect the mounting surface, the mounting surface being used for mounting the decorative layer; and the trim assembly satisfies one of the following conditions: The second groove is arranged on the mounting surface; The decorative layer is further arranged on the side surface, and the second groove is arranged on the side surface.

6. The hemming assembly of claim 2, wherein, The width of the groove gradually decreases in the arrangement direction of the groove bottom wall pointing to the groove opening.

7. The hemming assembly of claim 2, wherein, The depth H1 of the groove satisfies the following condition: 0.5mm≤H1≤3mm; and / or, the opening width H2 of the groove satisfies the following condition: 0.5mm≤H2≤3mm.

8. The hemming assembly of claim 2, wherein, The second trim part comprises a mounting surface for connecting the first trim part and a back surface opposite to the mounting surface, the mounting surface being used for mounting the decorative layer, and the second trim part being provided with a through hole penetrating through the mounting surface and the back surface, the through hole being used for accommodating part of the decorative layer.

9. The hemming assembly of claim 8, wherein, The decorative layer further comprises a limiting part arranged on the back surface, the limiting part being arranged corresponding to the through hole, and the width of the limiting part being greater than the hole diameter of the through hole.

10. The hemming assembly of claim 1, wherein, The trim assembly further comprises a bonding layer arranged between the decorative layer and the trim part, and used for bonding and connecting the decorative layer and the trim part.

11. The hemming assembly of claim 10, wherein, The trim assembly further comprises a bearing part embedded in the trim part, the bonding layer being arranged on one side of the bearing part away from the trim part, and the decorative layer being arranged on one side of the bonding layer away from the bearing part.

12. The hemming assembly of claim 1, wherein, The trim part further comprises a rough area for mounting the decorative layer, the surface of the rough area being roughened, and the decorative layer being arranged on the rough area.

13. The hemming assembly of claim 1, wherein, In the stacking direction of the trim part to the decorative layer, the thickness T of the decorative layer satisfies the following condition: 0.2mm≤T≤2mm.

14. The hemming assembly of claim 1, wherein, The decorative layer can transmit light, and the trim assembly further comprises a light guide part arranged between the decorative layer and the trim part, the light guide part comprising a light emitting part and a light guide strip arranged on one side of the light emitting part, the light emitted by the light emitting part being capable of being conducted from the light guide strip and emitted through the decorative layer.

15. The hemming assembly of claim 14, wherein, The edge covering member comprises a first edge covering part for covering the vehicle window glass and a second edge covering part connected to the first edge covering part, the second edge covering part is farther away from the vehicle window glass than the first edge covering part, the light guide member is arranged on one side of the second edge covering part, the second edge covering part is provided with at least one recess for accommodating part of the decorative layer and at least one clamping groove for accommodating part of the light guide member.

16. The hemming assembly of claim 15, wherein, The clamping groove is in communication with the recess, the depth of the clamping groove is greater than the depth of the recess, and the recess is formed between the light guide member and the second edge covering part.

17. The hemming assembly of claim 1, wherein, The polyurethane injection material comprises at least one of polyurethane (PUR) and polyurea (PUA).

18. A vehicle glazing assembly characterized by, The vehicle window glass assembly comprises a vehicle window glass and the edge covering assembly according to any one of claims 1-17, the edge covering member of the edge covering assembly covers the vehicle window glass.

19. A vehicle characterized by comprising: The vehicle comprises a vehicle window glass, a vehicle body fitting, and the edge covering assembly according to any one of claims 1-17, the edge covering member of the edge covering assembly covers the vehicle window glass and overlaps the vehicle body fitting.

20. A method of making a bound assembly, characterized by, The preparation method comprises: obtaining an edge covering member by an injection molding process; covering part of the edge covering member with a polyurethane injection material to obtain a decorative layer arranged on one side of the edge covering member by an injection molding process; obtaining an edge covering assembly, the edge covering member is used to cover a vehicle window glass, and the decorative layer is used to decorate a vehicle.

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