A car interior headliner

Abstract

This utility model discloses an automotive interior headliner, including a headliner base and a replaceable decorative fabric. The headliner base has an array of first adsorption holes at its bottom end and a mounting groove at its bottom end. A mounting bracket is detachably mounted on the mounting groove. A second adsorption strip is fixedly connected to the side end of the mounting bracket. The lower edge of the headliner base has a second adsorption hole and a second adsorption block. A connecting pipe is provided inside the headliner base. The connecting pipe is connected to the first adsorption hole and the second adsorption hole through branch air pipes, and a valve is provided on the connecting pipe. The end of the connecting pipe away from the headliner base is connected to a miniature air pump. This automotive interior headliner, through magnetic attraction and airtight negative pressure, combined with the tight fit of the elastic sealing ring made of silicone material and the uniform air guiding effect of the annular air guiding platform with adsorption hole openings, can effectively enhance the adhesion between the decorative fabric and the headliner base, prevent wrinkling of the decorative fabric, and achieve the benefits of improved fixation stability and the flatness of the interior appearance.

Description

Technical Field

[0001] This utility model relates to the field of automotive interior technology, specifically to an automotive interior headliner. Background Technology

[0002] In automotive interior design, the headliner is an important component. It not only needs to fulfill basic functions such as protection and sound insulation, but also needs to meet users' needs for personalized interior style, aesthetics, and ease of use.

[0003] Traditional automotive headliners typically use adhesive, stitching, or one-piece injection molding processes to fix the decorative layer to the headliner base. If the interior style needs to be changed, the headliner base must be disassembled and the original decorative layer peeled off using professional tools. This is not only complicated and time-consuming, but also prone to damaging the headliner base, resulting in high replacement costs and low feasibility. It cannot meet users' personalized needs for flexibly adjusting the interior style. Although some improved removable headliners use fasteners or Velcro, the fastener connection is troublesome to install, and the Velcro is prone to dust accumulation and material aging, which can reduce its adhesion, causing the decorative layer edges to lift and wrinkle in some areas. This seriously affects the flatness of the interior appearance and reduces the overall structural stability. When the temperature inside the car rises, the magnetic attraction weakens, making it difficult to fix the decorative layer.

[0004] Therefore, this utility model provides an automotive interior headliner to solve the above-mentioned problems. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides an automotive interior headliner that solves the aforementioned problems.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an automotive interior headliner, comprising a headliner base and a replaceable decorative fabric. The headliner base has an array of first adsorption holes at its bottom end, and an installation groove at its bottom end. An installation bracket is detachably mounted on the installation groove. A second adsorption strip is fixedly connected to the side end of the installation bracket. The lower edge of the headliner base has a second adsorption hole and a second adsorption block. A connecting pipe is provided inside the headliner base. The connecting pipe is connected to the first adsorption hole and the second adsorption hole respectively through branch air pipes. A valve is provided on the connecting pipe, and a miniature air pump is connected to the end away from the headliner base.

[0007] Furthermore, the replaceable decorative fabric is provided with a first elastic sealing ring, a second elastic sealing ring, a first adsorption strip, and a first adsorption block. The first elastic sealing ring is adsorbed to the first adsorption hole, the second elastic sealing ring is adsorbed to the second adsorption hole, the first adsorption strip is magnetically attracted to the second adsorption strip, and the first adsorption block is magnetically attracted to the second adsorption block. The first adsorption hole is arranged in a ring array, and its enclosing area is attached to the first elastic sealing ring to form a first airtight cavity. The enclosing area of ​​the second elastic sealing ring is attached to the corresponding area of ​​the second adsorption hole to form a second airtight cavity.

[0008] Furthermore, the second adsorption strip and the second adsorption block are neodymium iron boron permanent magnet strips.

[0009] Furthermore, both the first adsorption block and the first adsorption strip are galvanized iron sheets, which are embedded in the replaceable decorative cloth through injection molding, with a thickness of 0.3-0.5 mm.

[0010] Furthermore, the diameters of the first and second adsorption holes are both 1.5-2 mm, and the spacing between adjacent adsorption holes is 10-15 mm; an annular air guide platform protruding into the airtight cavity is provided at the opening of the adsorption hole.

[0011] Furthermore, both the first and second elastic sealing rings are made of silicone.

[0012] Furthermore, the micro air pump is fixed to the roof beam of the car, and the valve is a valve that is electrically connected to the car's central control system.

[0013] Beneficial effects: This utility model provides an automotive interior headliner. Compared with the prior art, it has the following beneficial effects: (1) A car interior roof can effectively enhance the bonding strength between the decorative fabric and the roof substrate by using magnetic attraction and airtight negative pressure, combined with the tight fit of the elastic sealing ring made of silicone material and the uniform air guiding effect of the adsorption hole opening ring air guiding platform, so as to prevent the decorative fabric from wrinkling and achieve the benefits of improving the fixing stability and the flatness of the interior appearance.

[0014] (2) A car interior roof can be opened and closed with one button by linking the valve and micro air pump through the car central control system, without the need to manually operate the air pump or valve, thus simplifying the installation and disassembly process and improving the ease of operation.

[0015] (3) A car interior headliner, which, through the low-resistance separation design of the magnetic structure after the negative pressure is released, allows the old decorative fabric to be easily removed and the new decorative fabric to be reinstalled, thus satisfying the user's personalized interior style replacement needs. Attached Figure Description

[0016] Figure 1This is a side view of the overall device structure of this utility model; Figure 2 This is a side view of the ceiling base of this utility model; Figure 3 This is a side view of the interior fabric structure of the ceiling of this utility model; Figure 4 This is a side view of the second adsorption strip structure of this utility model; Figure 5 This is the utility model Figure 2 A partial side view of structure A.

[0017] In the diagram: 1. Ceiling base; 2. First elastic sealing ring; 3. First adsorption strip; 4. Second adsorption strip; 5. Mounting bracket; 6. Mounting groove; 7. Second elastic sealing ring; 8. First adsorption hole; 9. First adsorption block; 10. Connecting pipe; 11. Valve; 12. Miniature air pump; 13. Second adsorption hole; 14. Second adsorption block; 15. Replacement decorative fabric. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Example 1: Please refer to Figure 1-5 A car interior headliner includes a headliner base 1 and a replaceable decorative fabric 15. The headliner base 1 has an array of first adsorption holes 8 at its bottom end and a mounting groove 6 at its bottom end. A mounting bracket 5 is detachably mounted on the mounting groove 6. A second adsorption strip 4 is fixedly connected to the side end of the mounting bracket 5. The lower edge of the headliner base 1 has a second adsorption hole 13 and a second adsorption block 14. The headliner base 1 has a connecting pipe 10 inside. The connecting pipe 10 is connected to the first adsorption hole 8 and the second adsorption hole 13 through branch air pipes. The connecting pipe 10 is equipped with a valve 11, and the end of the valve that is away from the headliner base 1 is connected to a miniature air pump 12.

[0020] The decorative fabric 15 is provided with a first elastic sealing ring 2, a second elastic sealing ring 7, a first adsorption strip 3, and a first adsorption block 9; wherein, the first elastic sealing ring 2 is adsorbed to the first adsorption hole 8, and the second elastic sealing ring 7 is adsorbed to the second adsorption hole 13; the first adsorption strip 3 is magnetically attracted to the second adsorption strip 4, and the first adsorption block 9 is magnetically attracted to the second adsorption block 14; the first adsorption holes 8 are arranged in a ring array, and their enclosed area is attached to the first elastic sealing ring 2 to form a first airtight cavity, and the enclosed area of ​​the second elastic sealing ring 7 is attached to the corresponding area of ​​the second adsorption hole 13 to form a second airtight cavity.

[0021] The second adsorption strip 4 and the second adsorption block 14 are neodymium iron boron permanent magnet strips.

[0022] Both the first adsorption block 9 and the first adsorption strip 3 are galvanized iron sheets, which are embedded on the replaceable decorative cloth 15 by injection molding process, with a thickness of 0.3-0.5mm.

[0023] The diameters of the first adsorption hole 8 and the second adsorption hole 13 are both 1.5-2 mm, and the distance between adjacent adsorption holes is 10-15 mm; an annular air guide platform protruding into the airtight cavity is provided at the opening of the adsorption hole.

[0024] The first elastic sealing ring 2 and the second elastic sealing ring 7 are made of silicone.

[0025] The miniature air pump 12 is fixed to the crossbeam of the car roof, and the valve 11 is a valve that is electrically connected to the car's central control system.

[0026] Work process: Align the first adsorption strip 3 on the decorative fabric with the second adsorption strip 4 on the ceiling base mounting bracket 5, and simultaneously align the first adsorption block 9 on the decorative fabric with the second adsorption block 14 at the edge of the ceiling base. Utilizing the neodymium iron boron permanent magnet attraction of the second adsorption strip 4 and the second adsorption block 14, as well as the magnetic attraction of the galvanized iron sheet of the first adsorption strip 3 and the first adsorption block 9, the decorative fabric is initially positioned to prevent displacement during installation.

[0027] The airtight negative pressure reinforcement sends a command through the vehicle's central control system to open the valve 11 on the connecting pipe 10 and start the micro air pump 12 fixed on the roof beam. The micro air pump 12 pumps air through the connecting pipe and branch air pipe to the first airtight cavity enclosed by the first adsorption hole 8 and the second airtight cavity corresponding to the second adsorption hole 13. As the air inside the airtight cavity is extracted, a negative pressure is formed inside the cavity. The first elastic sealing ring 2 and the second elastic sealing ring 7 made of silicone material are tightly attached to the surface of the ceiling substrate due to the negative pressure suction. At the same time, the annular air guide platform of the adsorption hole opening ensures that the airflow is evenly distributed, further enhancing the sealing and adsorption effect. Once the negative pressure inside the airtight cavity reaches a stable value, the central control unit stops the air pump and closes valve 11. At this point, the decorative cloth is fixed by both negative pressure adsorption and magnetic attraction, thus completing the installation.

[0028] Removal of decorative fabric for replacement: If the airtight negative pressure needs to be released and the trim fabric needs to be replaced, first send a "remove" command through the car's central control system: Open valve 11 to allow outside air to enter the two airtight chambers through the first adsorption hole 8, the second adsorption hole 13, the branch air pipe, and the connecting pipe 10, thereby balancing the air pressure inside the chambers and causing the negative pressure adsorption force of the silicone sealing ring to disappear.

[0029] After the magnetic attraction has completely dissipated, manually pull gently to replace the decorative cloth 15. Separate the first absorbent strip 3 on the decorative fabric from the second absorbent strip 4 on the ceiling, and separate the first absorbent block 9 from the second absorbent block 14. Simply remove the decorative fabric from the ceiling base 1 to complete the disassembly. The "installation process" can be repeated to replace the new decorative fabric.

[0030] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A car interior headliner, characterized in that, The ceiling base (1) includes a ceiling substrate (1) and a replacement decorative fabric (15). The ceiling substrate (1) has an array of first adsorption holes (8) at its bottom end and an installation groove (6) at its bottom end. An installation frame (5) is detachably installed on the installation groove (6). A second adsorption strip (4) is fixedly connected to the side end of the installation frame (5). The lower edge of the ceiling substrate (1) has a second adsorption hole (13) and a second adsorption block (14). The ceiling substrate (1) has a connecting pipe (10) inside. The connecting pipe (10) is connected to the first adsorption hole (8) and the second adsorption hole (13) through branch air pipes. A valve (11) is provided on the connecting pipe (10), and a micro air pump (12) is connected to the end away from the ceiling substrate (1).

2. The automotive interior headliner according to claim 1, characterized in that: The replaceable decorative cloth (15) is provided with a first elastic sealing ring (2), a second elastic sealing ring (7), a first adsorption strip (3) and a first adsorption block (9). The first elastic sealing ring (2) is adsorbed to the first adsorption hole (8), the second elastic sealing ring (7) is adsorbed to the second adsorption hole (13), the first adsorption strip (3) is magnetically attracted to the second adsorption strip (4), and the first adsorption block (9) is magnetically attracted to the second adsorption block (14). The first adsorption hole (8) is arranged in a ring array, and its enclosing area is attached to the first elastic sealing ring (2) to form a first airtight cavity. The enclosing area of ​​the second elastic sealing ring (7) is attached to the corresponding area of ​​the second adsorption hole (13) to form a second airtight cavity.

3. The automotive interior headliner according to claim 2, characterized in that: The second adsorption strip (4) and the second adsorption block (14) are neodymium iron boron permanent magnet strips.

4. The automotive interior headliner according to claim 2, characterized in that: The first adsorption block (9) and the first adsorption strip (3) are both galvanized iron sheets, which are embedded on the replacement decorative cloth (15) by injection molding process, with a thickness of 0.3-0.5mm.

5. The automotive interior headliner according to claim 2, characterized in that: The diameters of the first adsorption hole (8) and the second adsorption hole (13) are both 1.5-2 mm, and the distance between adjacent adsorption holes is 10-15 mm; the opening of the adsorption hole is provided with an annular air guide platform that protrudes into the airtight cavity.

6. The automotive interior headliner according to claim 3, characterized in that: The first elastic sealing ring (2) and the second elastic sealing ring (7) are made of silicone.

7. The automotive interior headliner according to claim 6, characterized in that: The micro air pump (12) is fixed on the roof beam of the car, and the valve (11) is a valve and is electrically connected to the car's central control system.

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