Assembly structure of car trunk decoration parts

Through the design of limit pins, clamping structures and sealing strips, the uneven assembly and waterproof and abnormal noise-proof problems of car suitcase decorations are solved, and the effect of reliable connection and waterproof and abnormal noise-proof is achieved.

CN116494885BActive Publication Date: 2025-08-26CHONGQING CHANGAN AUTOMOBILE CO LTD
View PDF 2 Cites 0 Cited by

Patent Information

Application Number
CN202310634626.7
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-05-31
Publication Date
2025-08-26
Estimated Expiration
2043-05-31

AI Technical Summary

Technical Problem

The assembly structure of existing car trunk decorations is difficult to achieve reliable connection, resulting in uneven matching gaps and segment differences, and waterproof and abnormal noise prevention problems.

Method used

The limit pin and clamping structure of the front and rear decorative parts of the suitcase are adopted, combined with the sealing tape and supporting rib design to ensure a reliable connection of the assembly, and prevent moisture infiltration and abnormal noise from occurring through the sealing tape and flange pressure design.

Benefits of technology

It realizes reliable connection of suitcase decoration parts, prevents abnormal noise and moisture infiltration, and improves the overall performance of the assembly structure.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN116494885B_ABST
    Figure CN116494885B_ABST
Patent Text Reader

Abstract

The present invention relates to an assembly structure for a passenger car trunk trim. The assembly comprises a trunk trim assembly, a trunk lid outer panel, and a rear windshield seal. The trunk trim assembly includes a front trunk trim and a rear trunk trim, each secured to the trunk lid outer panel. The front and rear trunk trims overlap the rear edge of the front and rear trunk trims. The present invention ensures reliable assembly and connection between the trunk trim components, effectively preventing water and unusual noise.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The invention relates to an assembly connection structure between car parts, in particular to an assembly structure of car luggage compartment decorative parts. Background Art

[0002] Car trunk trims, mounted and fixed to the trunk, can enhance the car's styling, sportiness, and quality. However, once installed on the trunk lid, the fit of the trunk trim with surrounding components, as well as the assembly and connection between the trunk trim's components, directly impact the clearances and step differences between components, as well as the waterproof and noise-resistant properties. These must be ensured through the design of the trunk trim's assembly structure. Summary of the Invention

[0003] The object of the present invention is to provide an assembly structure for a car trunk decoration, which can ensure reliable assembly connection between the parts of the trunk decoration itself, and can effectively prevent water and abnormal noise.

[0004] The assembly structure of the car trunk decoration part described in the present invention includes a trunk decoration part assembly, a trunk lid outer panel and a rear windshield sealing strip, the trunk decoration part assembly is fixed to the trunk lid outer panel, the trunk decoration part assembly includes a trunk front decoration part and a trunk rear decoration part, the trunk front decoration part and the trunk rear decoration part are respectively fixed to the trunk lid outer panel, the front end edge of the trunk front decoration part is provided with a downward flange, the rear windshield sealing strip extends toward the trunk outer panel, when the trunk is in a closed state, the flange is pressed against the extended portion of the rear windshield sealing strip; a first sealing strip parallel to the flange is bonded to the inner surface of the trunk front decoration part near the flange, the first sealing strip is pressed against the front end edge of the trunk lid outer panel by the trunk front decoration part, and the front end edge of the trunk rear decoration part overlaps the rear end edge of the trunk front decoration part.

[0005] The trunk rear trim includes a trunk rear trim body, a left frame, a middle frame and a right frame. The left frame, the middle frame and the right frame are fixed to the inner surface of the trunk rear trim body, and the left frame and the right frame are symmetrically located on both sides of the middle frame. The trunk rear trim is fixed to the outer panel of the trunk lid through the left frame, the middle frame and the right frame.

[0006] The cross-section of the rear end edge of the front trim of the trunk is V-shaped, so that the rear end edge of the front trim of the trunk has a V-shaped groove formed by a front inner side surface, a bottom surface and a rear inner side surface. A second sealing strip parallel to the front end edge is bonded to the inner surface of the trunk rear trim body near the front end edge of the trunk rear trim body. The front end edge of the trunk rear trim body presses the second sealing strip against the end surface of the V-shaped groove of the rear end edge of the trunk front trim, and a gap is provided between the front end edge of the trunk rear trim body and the front inner side surface of the V-shaped groove, thereby achieving overlapping of the front end edge of the trunk rear trim and the rear end edge of the trunk front trim.

[0007] A first limit seat is integrally provided at the rear end edge of the front decorative piece of the trunk, a limit pin is integrally provided on its upper surface, and a supporting rib is integrally provided on its lower surface; a second limit seat is provided on the inner surface of the trunk rear decorative piece body near the front end edge of the trunk rear decorative piece body, a limit hole is provided on it, the limit pin is located in the limit hole, and the supporting rib is supported on the outer panel of the trunk lid.

[0008] A rib is provided on the inner surface of the trunk front decorative piece to which the first sealing strip is bonded, and the trunk front decorative piece presses the first sealing strip against the front end edge of the trunk lid outer panel through the rib.

[0009] The limiting pin is a cross-tapered pin.

[0010] A clip is integrally provided on the rear end edge of the front decorative piece of the luggage box, and a clip hole is opened on the front end edge of the middle frame, and the clip is clipped into the clip hole.

[0011] A water flow hole is opened at the bottom of the V-shaped groove, and a supporting boss is arranged at the outlet end of the water flow hole, and the supporting boss is supported on the outer plate of the trunk cover.

[0012] The luggage case trim assembly of the present invention includes a front and rear luggage case trim. The rear edge of the front and rear luggage case trims are positioned relative to each other via a stopper pin and a stopper hole, and are engaged with a clip in the engagement hole, thereby achieving a secure connection between the front and rear luggage case trims. Furthermore, the front edge of the rear luggage case trim body presses a second sealing strip against the end surface of a V-shaped groove in the rear edge of the front luggage case trim, thereby preventing any creaking noise from the joint between the front and rear luggage case trims. When the luggage case is closed, the flange of the front edge of the front luggage case trim presses against an extension of the rear windshield sealing strip, and the first sealing strip is pressed against the front edge of the trunk lid outer panel by the front luggage case trim. This effectively prevents water from flowing into the trunk lid outer panel through the gap between the rear windshield and the front luggage case trim, while also preventing any creaking noise from the front edge of the front luggage case trim and the trunk lid outer panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 Axonometric view of a sedan with the trunk trim installed.

[0014] Figure 2 for Figure 1 Sectional view along line AA.

[0015] Figure 3 This is an axonometric view of the trunk lid outer panel.

[0016] Figure 4 、 Figure 5 This is the axonometric drawing of the trunk front trim. Figure 4 Shown is the back of the trunk front trim. Figure 5 Shown is the front side of the trunk front trim.

[0017] Figure 6 This is an axonometric view of the rear trunk trim, showing the back side of the rear trunk trim.

[0018] Figure 7 This is an axonometric view of the trunk rear trim body, showing the back side of the trunk rear trim body.

[0019] Figure 8 Axonometric view of the center frame of the rear trunk trim.

[0020] Figure 9 This is an axonometric view of the left frame of the rear trunk trim.

[0021] Figure 10 This is a bottom view of the connection between the front and rear decorations of the trunk.

[0022] Figure 11 for Figure 2 Enlarged view of point M in the middle.

[0023] Figure 12 for Figure 2 Enlarged view of point N in the middle.

[0024] Figure 13 for Figure 5 Enlarged view of point H in the middle.

[0025] Figure 14 for Figure 4 Enlarged view of point I in the middle.

[0026] Figure 15 for Figure 10 Cross-section along line BB.

[0027] Figure 16 for Figure 10 Cross-section along line CC.

[0028] Figure 17 for Figure 4 Enlarged view of point J in the middle. DETAILED DESCRIPTION

[0029] The present invention will be described in further detail below with reference to the accompanying drawings.

[0030] like Figure 1 and Figure 2 As shown, the assembly structure of the trunk decoration of the car includes a trunk decoration assembly, a trunk cover outer panel 4 and a rear windshield sealing strip 11. The rear windshield sealing strip 11 is pressed under the rear windshield 1. The trunk decoration assembly includes a trunk front decoration 2 and a trunk rear decoration 3. Figures 6 to 9 As shown, the trunk rear trim 3 includes a trunk rear trim body 31, a left frame 32, a middle frame 33 and a right frame 34. The left frame 32, the middle frame 33 and the right frame 34 are fixed to the inner surface of the trunk rear trim body 31, and the left frame 32 and the right frame 34 are symmetrically located on both sides of the middle frame 33. The trunk front trim 2 is fixed to the trunk lid outer panel 4, and the trunk rear trim 3 is fixed to the trunk lid outer panel 4 through the left frame 32, the middle frame 33 and the right frame 34.

[0031] like Figure 11 As shown, the front edge of the trunk front trim 2 is provided with a downward flange 21. The rear windshield sealing strip 11 extends toward the trunk outer panel 4. When the trunk is closed, the flange 21 presses against the extended portion of the rear windshield sealing strip 11. Two ribs 23 parallel to the flange 21 are provided on the inner surface of the trunk front trim 2 near the flange 21. A first sealing strip 22 parallel to the flange 21 is bonded to the ribs 23. The trunk front trim 2 presses the first sealing strip 22 against the front edge of the trunk lid outer panel 4 via the ribs 23.

[0032] like Figure 12 As shown, the rear end edge of the trunk front trim 2 has a V-shaped cross-section, forming a V-shaped groove 24 formed by a front inner side, a bottom surface, and a rear inner side. A second sealing strip 311 parallel to the front edge is bonded to the inner surface of the trunk rear trim body 31 near the front edge of the trunk rear trim body. The front edge of the trunk rear trim body 31 presses the second sealing strip 311 against the end surface of the V-shaped groove 24 at the rear end edge of the trunk front trim 2, and a gap 5 is formed between the front edge of the trunk rear trim body 31 and the front inner side of the V-shaped groove 24. Figure 13 、 Figure 14 ,and Figure 15As shown, a first stopper 25 is integrally provided at the rear edge of the trunk front trim 2. A cross-conical stopper pin 26 is integrally provided on its upper surface, and a supporting rib 27 is integrally provided on its lower surface. The end surface of the supporting rib 27 is adhered with cotton adhesive to prevent abnormal noise. A second stopper 312 is provided on the inner surface of the trunk rear trim body 31, near the front edge of the trunk rear trim body 31. A stopper hole is provided on the second stopper, and the stopper pin 26 is located in the stopper hole. The supporting rib 27 is supported on the trunk lid outer panel 4. Figure 16 As shown, a clip 28 is integrally provided on the rear edge of the luggage box front decorative piece 2, and a snap-in hole 331 is provided on the front edge of the middle frame 33. The clip 28 is snapped into the snap-in hole 331, thereby achieving the overlap between the front edge of the luggage box rear decorative piece 3 and the rear edge of the luggage box front decorative piece 2. Figure 17 As shown, a water hole 29 is opened at the bottom of the V-shaped groove 24, and a supporting boss 210 is provided at the outlet end of the water hole 29. The end surface of the supporting boss 210 is pasted with cotton sticky to prevent abnormal noise, and the supporting boss 210 is supported on the outer panel 4 of the trunk lid.

Claims

1. An assembly structure for a car trunk decoration, comprising a trunk decoration assembly, a trunk cover outer panel (4) and a rear windshield sealing strip (11), wherein the trunk decoration assembly is fixed to the trunk cover outer panel, and is characterized in that: The trunk decoration assembly comprises a trunk front decoration (2) and a trunk rear decoration (3), the trunk front decoration and the trunk rear decoration are respectively fixed to the trunk cover outer plate, the front end edge of the trunk front decoration is provided with a downward flange (21), the rear windshield sealing strip extends toward the trunk outer plate, and when the trunk is in a closed state, the flange presses against the extended portion of the rear windshield sealing strip; a first sealing strip (22) parallel to the flange is bonded to the inner surface of the trunk front decoration near the flange, the first sealing strip is pressed against the front end edge of the trunk cover outer plate by the trunk front decoration, and the front end edge of the trunk rear decoration overlaps the rear end edge of the trunk front decoration; The trunk rear decorative part (3) comprises a trunk rear decorative part body (31), a left frame (32), a middle frame (33) and a right frame (34), wherein the left frame, the middle frame and the right frame are fixed to the inner surface of the trunk rear decorative part body, and the left frame and the right frame are symmetrically located on both sides of the middle frame, and the trunk rear decorative part is fixed to the trunk cover outer plate (4) via the left frame, the middle frame and the right frame; The rear end edge of the front decorative part (2) of the trunk is V-shaped in cross section, so that the rear end edge of the front decorative part has a V-shaped groove (24) formed by a front inner side surface, a bottom surface and a rear inner side surface, and a second sealing strip (311) parallel to the front end edge is bonded to the inner surface of the trunk rear decorative part body (31) near the front end edge of the trunk rear decorative part body, and the front end edge of the trunk rear decorative part body presses the second sealing strip against the end surface of the V-shaped groove of the rear end edge of the trunk front decorative part, and a gap (5) is provided between the front end edge of the trunk rear decorative part body and the front inner side surface of the V-shaped groove, thereby achieving an overlap between the front end edge of the trunk rear decorative part and the rear end edge of the trunk front decorative part; A first limiting seat (25) is integrally provided on the rear end edge of the front decorative piece (2) of the luggage compartment, a limiting pin (26) is integrally provided on the upper surface thereof, and a supporting rib (27) is integrally provided on the lower surface thereof; a second limiting seat (312) is provided on the inner surface of the rear decorative piece body (31) of the luggage compartment near the front end edge thereof, a limiting hole is provided on the second limiting seat, the limiting pin is located in the limiting hole, and the supporting rib is supported on the outer panel (4) of the luggage compartment cover.

2. The assembly structure of the car trunk decoration according to claim 1 is characterized in that: A rib (23) is provided on the inner surface of the trunk front decorative piece (2) to which the first sealing strip (22) is bonded, and the trunk front decorative piece presses the first sealing strip against the front end edge of the trunk cover outer panel (4) via the rib.

3. The assembly structure of the car trunk decoration according to claim 1 is characterized in that: The limiting pin (26) is a cross-tapered pin.

4. The assembly structure of the car trunk decoration according to claim 1 is characterized in that: A clip (28) is integrally provided on the rear end edge of the front decorative piece (2) of the luggage box, and a clipping hole (331) is provided on the front end edge of the middle frame (33), and the clip is clipped into the clipping hole.

5. The assembly structure of the car trunk decoration according to claim 1 is characterized in that: A water flow hole (29) is provided at the bottom of the V-shaped groove (24), and a supporting boss (210) is provided at the outlet end of the water flow hole, the supporting boss being supported on the outer plate (4) of the trunk lid.

Citation Information

Patent Citations

  • Sealing waterproof structure of hydrogen energy automobile side wall decorative plate

    CN111993875A

  • Sealing waterproof structure of hydrogen energy automobile side wall decoration plate

    CN212579581U