Sunshade device for vehicle

Abstract

The invention relates to the field of vehicles, in particular to a sunshade device for a vehicle, in particular a roof sunshade device, said sunshade device (1) comprising a sunshade curtain (2) and a drive mechanism (3) for the sunshade curtain, said sunshade curtain (2) comprising an airbag (4), the driving mechanism (3) is used for expanding the sunshade curtain (2) to a sunshade position by inflating the air bag (4) and retracting the sunshade curtain (2) to a storage position by deflating the air bag (4); at least one part of the inflation air chamber (5) of the airbag (4) is arranged, in particular supported on guide rails (6) located on both sides of the sunshade curtain (2) for guiding the sunshade curtain (2) to extend and retract. The invention has the advantages that the inflatable air chamber of the air bag can be used as an air cushion to be supported on the guide rail, so that the sunshade curtain can be pneumatically supported on the guide rail, and the sunshade curtain can move to a sunshade position along the guide rail in a vibration reduction and low-noise manner.

Description

Technical Field

[0001] The present invention relates to the field of vehicles, and in particular to a sunshade device for a vehicle, in particular a roof sunshade device. The sunshade device is particularly suitable for vehicles with a sunroof, in particular a panoramic sunroof, and a glass roof, in particular a full glass roof. Background Art

[0002] At present, more and more cars are equipped with sunroofs, especially panoramic sunroofs that can be opened mostly, and all-glass roofs are increasingly used, which leads to a sharp rise in the temperature inside the car under strong sunlight. In order to adjust the temperature inside the car, the air conditioning power needs to be increased, resulting in increased energy consumption. At the same time, direct sunlight also reduces the comfort of the driver and passengers, such as causing glare. However, many of these models are not equipped with sunshades. The main reason is that there is insufficient headroom in the car, and ordinary sunshades need to leave a certain distance from the roof. Therefore, in order to provide enough headroom for the driver and passengers, the only compromise is to cancel the sunshades.

[0003] In addition, the existing inflatable sunshade usually uses an ordinary air cushion structure to replace the rolling curtain structure, but the air cushion structure itself is not easy to store, and it also occupies a large volume when stored. At the same time, the thickness of the air cushion structure after unfolding is large and the stability is insufficient, which can easily bring a bad user experience. In addition, the setting of the inflatable air chamber of the air cushion structure often brings technical problems such as complex design and difficult implementation because it will greatly affect the unfolding speed and stability of the air cushion. Summary of the invention

[0004] Therefore, in view of one of the above disadvantages and / or other possible disadvantages not mentioned here, the object of the present invention is to provide a sunshade device, in particular a roof sunshade device and a vehicle having such a roof sunshade device.

[0005] According to a first aspect of the present invention, the sunshade device comprises a sunshade curtain and a driving mechanism for the sunshade curtain, wherein the sunshade curtain comprises an airbag, and the driving mechanism is configured to expand the sunshade curtain to a sunshade position by inflating the airbag and to release the airbag.

[0006] The airbag is used to retract the sunshade to a storage position, wherein at least a part of the inflatable air chamber of the airbag is arranged, in particular supported, on guide rails located on both sides of the sunshade for guiding the sunshade to extend and retract.

[0007] By arranging the inflatable chamber for the airbag on the guide rails located on both sides of the sunshade along the lateral direction of the vehicle, the inflatable chamber of the airbag can be used as an air cushion to support the sunshade and be supported on the guide rails, so as to realize pneumatic support of the sunshade on the guide rails (that is, the airbag part is directly configured as a pneumatic bearing for supporting the sunshade), so that the sunshade can move and especially slide along the guide rails in a vibration-damped and low-noise manner, thereby being able to respond quickly and silently to the deployment and adjustment needs of the sunshade to improve user comfort.

[0008] According to an optional embodiment of the present invention, the airbag includes a longitudinal airbag structure extending through the sunshade curtain along the longitudinal direction of the vehicle and / or a transverse airbag structure extending through the sunshade curtain along the transverse direction of the vehicle, wherein the longitudinal airbag structure, especially the longitudinal airbag structure directly connected to the inflatable air chamber on the guide rail, can play a role in guiding and supporting the movement of the sunshade curtain, and the transverse airbag structure connected to the longitudinal airbag structure can play a role in supporting and tensioning the sunshade curtain.

[0009] According to an optional embodiment of the present invention, the longitudinal airbag structure and / or the transverse airbag structure are arranged spaced apart from each other in the sunshade. Thereby, a grid-like support skeleton is formed when the sunshade is unfolded to improve the stability of the sunshade. Here, the spacing between the two airbag structures can be selected, for example, according to the thickness and flexibility of the sunshade material, especially the sunshade fabric. In addition, the airbag structure can be simply constructed in a strip shape, especially cylindrical after inflation, so as to ensure isotropic and uniform inflation of the airbag and simple and low-cost manufacturing. In addition, according to the requirements of support strength and inflation speed, the longitudinal airbag structure and / or the transverse airbag structure can have different diameters after inflation, especially the two longitudinal airbag structures supported on the guide rail as pneumatic bearings can have a relatively large diameter, so as to guide and support the entire sunshade more stably, and at the same time distribute the gas faster and more evenly during inflation.

[0010] According to an optional embodiment of the present invention, the guide rail is fixed to the inner wall of the vehicle near the lower side of the roof in the longitudinal direction of the vehicle in the interior of the vehicle, and the sunshade is moved along the guide rail with the help of the longitudinal airbag structure and / or the transverse airbag structure in a bow-shaped cross-section (similar to the letter n) when unfolded. After the sunshade is unfolded, this bow-shaped structure can lift the middle area of ​​the sunshade so that it fits more closely to the roof, especially the lower side of the glass roof, thereby ensuring the head space of the driver and passengers. In addition, the bow-shaped structure can also cover the edge area of ​​the roof more generously, especially on the side, to reduce possible light leakage from the edge of the glass roof, thereby improving the sunshade. Our Ref.: CNDAI213325

[0011] Effect.

[0012] According to an optional embodiment of the present invention, the airbag has a preset convex shape after the sunshade curtain is deployed, and the upper surface of the airbag is in contact with, and in particular completely in contact with, the lower surface of the roof, especially the glass roof, through the convex shape. The convex shape of the airbag can make the sunshade curtain as completely in contact with the roof, especially the glass roof, as possible, thereby saving space inside the vehicle, while reducing or even eliminating the gap between the sunshade curtain and the roof, especially the glass roof, so that heat can be directly reflected from the upper surface of the sunshade curtain to the outside of the vehicle as much as possible, so as to avoid heating the air in the gap and thereby reduce the temperature rise rate inside the vehicle.

[0013] According to an optional embodiment of the present invention, the sunshade curtain itself is made of opaque material, especially opaque cloth and / or the upper surface of the sunshade curtain is coated with reflective material, especially silver material and / or the airbag includes a light-shielding layer located on the outermost side and / or the outer surface of the airbag, especially the upper surface, is coated with reflective material, especially silver material, thereby being able to block and / or reflect thermal radiation, thereby increasing the heat-insulating effect of the sunshade curtain. In addition, the lower surface of the sunshade curtain facing the interior of the vehicle can have a decorative pattern and color that matches the vehicle interior to enhance the interior effect of the vehicle. Further optionally, an ambient light, such as an LED light strip, can be provided on the lower surface of the sunshade curtain, for example, to form an artificial starry sky, etc., to meet the decoration and entertainment needs in the vehicle.

[0014] According to an optional embodiment of the present invention, the sunshade is completely stored in the storage position in a decorative part, especially a ceiling decorative panel, located at the top of the vehicle along the longitudinal direction of the vehicle, especially at the rear end of the roof. As a result, the sunshade can be completely hidden in the roof, such as in the ceiling decorative panel, after being stored, so as to improve the neatness and aesthetics of the interior of the vehicle. Optionally, for example, the top of the vehicle, usually the rear end of the roof, for storing the sunshade can be determined according to the opening direction of the roof skylight, and the rear end of the roof can usually provide more storage space.

[0015] According to an optional embodiment of the present invention, a reeling mechanism for the sunshade is arranged in the decorative component, wherein a reeling cable of the reeling mechanism extends in the guide rail, and a mounting belt for the sunshade is fixed on the guide rail, wherein the mounting belt can move with the sunshade. In this way, the reeling mechanism of the sunshade, especially the reeling cable and the mounting belt, can be perfectly shielded while the deflated sunshade is automatically retracted into the decorative component through the reeling cable, thereby improving the neatness and aesthetics of the vehicle interior.

[0016] According to an optional embodiment of the present invention, the driving mechanism includes an air pump, a control valve and an air guide pipe and is also arranged in the decorative part, so as to be completely hidden in the decorative part to further improve the neatness and aesthetics of the interior of the vehicle. Here, a control unit is also provided for controlling Our Ref.:CNDAI213325

[0017] and adjusting the driving mechanism, in particular the air pump and / or the control valve, wherein the air pump is in particular configured as a bidirectional air pump to realize the inflation and deflation of the airbag, and the running direction and running power of the air pump can be controlled and adjusted by the control unit. In addition, the amount of air in the inflation chamber of the airbag can be adjusted by means of a control valve, in particular a control valve configured as a flow regulating valve, to change the inflation and deflation speed of the airbag, so that the unfolding speed and working position of the sunshade can be accurately adjusted. In addition, the air guide line is connected to the fixed end of the inflation chamber located on the two side rails so as to first obtain pneumatic support and rapid movement when the sunshade is unfolded. Thus, the sunshade device according to the present invention can realize the rapid, precise and stepless adjustment of the working position of the sunshade, for example, the sunshade can be unfolded to different sunshade positions in a random manner along the longitudinal direction of the vehicle to meet the different sunshade requirements of the occupants in the vehicle and in particular can also match the opening degree of the roof sunroof.

[0018] According to a second aspect of the present invention, a vehicle is provided, in particular a vehicle having a glass sunroof, in particular a panoramic sunroof and / or a full glass roof, the vehicle comprising a sunshade device, in particular a roof sunshade device according to the first aspect of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be described in more detail below with reference to the accompanying drawings, so that the principles, features and advantages of the present invention can be better understood. The accompanying drawings include:

[0020] Figure 1 A schematic diagram showing a sunshade device according to the present invention in a vehicle roof;

[0021] Figure 2 The sunshade device is shown in Figure 1 Schematic diagram of a cross section taken along the section line AA;

[0022] Figure 3 A schematic structural diagram of the sunshade device is shown in the unfolded state of the sunshade curtain. DETAILED DESCRIPTION

[0023] In order to make the technical problems, technical solutions and beneficial technical effects to be solved by the present invention more clearly understood, the present invention will be further described in detail below in conjunction with the accompanying drawings and at least one exemplary embodiment. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the scope of protection of the present invention.

[0024] Figure 1 The sunshade device 1 according to the present invention is schematically shown in a schematic diagram in a vehicle roof, and the sunshade device 1 is installed in the interior of the vehicle, especially under the roof 7. Of course, the roof sunshade device according to the present invention can also be used outside the vehicle above the roof. The sunshade device 1 includes a sunshade curtain 2 and a drive mechanism 3 thereof hidden in the interior trim of the roof 7 (see FIG. Figure 3 The sunshade curtain 2 is constructed as an airbag type sunshade curtain, that is, an airbag 4 is arranged in the sunshade curtain 2 (see Figure 2 and Our Ref.:CNDAI213325

[0025] Figure 3 ), wherein the sunshade curtain 2 is, for example, made of dark opaque fabric and coated with a reflective material, especially a silver material, on its upper surface facing the roof 7, and the airbag 4 also has an outermost dark light-shielding layer and is coated with a reflective material, especially a silver material, on its upper surface or, for example, the upper surface is made of aluminum foil, thereby being able to block and / or reflect heat radiation and improve the sunshade effect. The drive mechanism 3 is configured to control the amount of air in the airbag 4 to move the sunshade curtain 2 in the longitudinal direction of the vehicle, for example, in the Figure 1 The sunshade is unfolded from the rear end of the roof 7, i.e. the rear end of the vehicle, along the direction of travel of the vehicle toward the front end of the roof 7, i.e. the front end of the vehicle to different sunshade positions, for example, unfolded to Figure 1 The sunshade curtain 2 is arranged at a position approximately half the length of the roof 7 to provide sunshade for rear passengers, and the sunshade curtain 2 is retracted to a storage position, such as in an interior trim at the rear end of the roof 7, by extracting gas from the airbag 4 (i.e., deflation of the airbag). The retracting mechanism for the sunshade curtain 2 can be arranged in a hidden manner in the interior trim, for example. Figure 1 As shown in the figure, the sunshade 2 moves, in particular slides, along the guide rails 6 on both sides in the transverse direction of the vehicle, and at least a part of the inflatable air chamber 5 of the airbag 4 of the sunshade 2 is arranged, in particular supported on the guide rails 6, wherein the guide rails 6 are installed on the vehicle inner wall near the lower side of the roof 7 in the vehicle interior along the longitudinal direction of the vehicle. Of course, the guide rails 6 can also be directly fixed on the lower surface of the roof 7.

[0026] Figure 2A schematic cross section of the sunshade device along the AA section line is shown, wherein the vehicle roof 7, in particular the glass roof, is schematically shown in dotted lines and the airbag 4 arranged in the sunshade 2 is schematically represented in gray. The inflatable air chamber 5 for the airbag 4 is arranged on guide rails 6 located on both sides of the sunshade 2 in the lateral direction and can be used as a pneumatic bearing to support the sunshade 2, so that the sunshade 2 can slide on the guide rails 6 in a vibration-damping and low-noise manner. The airbag 4 located below the vehicle roof 7 is, for example, configured to be cylindrical or oblate cylindrical after inflation, so that it can have a preset convex shape 9, and the upper surface of the airbag 4 can be completely fitted with the lower surface of the vehicle roof 7 through these convex shapes 9. This can save space inside the vehicle, while reducing or even eliminating the gap between the sunshade 2 and the vehicle roof 7, in particular the glass roof, to avoid solar radiation heating the air in the gap, thereby reducing the temperature rise rate in the vehicle. In addition, as shown in Figure 2 As shown in FIG, the winding cable 8 of the winding mechanism for winding up the sunshade 2 can be hidden and accommodated in the guide rail 6 and move along the guide rail 6. Thereby, the neatness and aesthetics of the interior of the vehicle can be improved.

[0027] Figure 3 FIG. 2 shows a schematic diagram of the structure of the sunshade device 1 when the sunshade curtain 2 is in an unfolded state. Figure 3 It can be seen that the airbag of the sunshade 2 has a longitudinal airbag structure 4.1 extending through the sunshade 2 in the longitudinal direction of the vehicle and a transverse airbag structure 4.2 extending through the sunshade 2 in the transverse direction of the vehicle. When the sunshade 2 is deployed, the longitudinal airbag structure 4.1 and / or the transverse airbag structure 4.2 are used to form a bow in cross section.

[0028] Our Ref.:CNDAI213325

[0029] The sunshade curtain 2 is moved in the form of a dotted line along the guide rail 6, wherein the longitudinal airbag structure 4.1 (at the Figure 3 The transverse airbag structure 4.2 extending transversely between the two longitudinal airbag structures 4.1 can tension the sunshade 2. Figure 3 , three longitudinal airbag structures 4.1 and three transverse airbag structures 4.2 are shown as examples, wherein the longitudinal airbag structures 4.1 and the transverse airbag structures 4.2 are interconnected. Similar to the principle of a convertible folding top, these airbag structures 4.1 and 4.2 can serve as support rods to form the framework of the unfolded sunshade 2 after being inflated, so that the sunshade 2 can be moved pneumatically. In addition, Figure 3The drive mechanism 3 is also schematically shown in a storage position hidden in the rear end of the roof 7. The drive mechanism 3 includes an air pump 10, a control valve 11 and an air guide 12, wherein the air guide 12 is respectively connected to the fixed ends of the inflatable air chambers 5 of the two longitudinal airbag structures 4.1 on the guide rail 6 of the sunshade 2, so that when the sunshade 2 is unfolded, the two longitudinal airbag structures 4.1 located on the guide rail 6, which have a larger cross-section and a larger inflation volume, can be inflated first, and then the gas is gradually distributed to the transverse airbag structure 4.2 and other longitudinal airbag structures 4.1, which have a smaller cross-section and a smaller inflation volume, through the two longitudinal airbag structures 4.1. The control unit 13 is configured to control and regulate the drive mechanism 3, especially the air pump 10 and the control valve 11, so as to control the opening and closing of the air pump 10 and the operating direction (for example, for achieving inflation or deflation) and the operating power and / or regulate the opening degree of the control valve 11 to change the gas flow and thereby achieve rapid, precise and stepless adjustment of the working position of the sunshade 2.

[0030] Although the specific embodiments of the present invention are described in detail herein, they are provided only for the purpose of explanation, and the present invention is not limited to the specific details, representative structures and exemplary embodiments shown and described in its broader sense. On the contrary, those skilled in the art can make various modifications and substitutions without departing from the basic spirit and scope of the present invention.

Claims

1. A sunshade device for a vehicle, the sunshade device (1) comprising a sunshade curtain (2) and a driving mechanism (3) for the sunshade curtain (2), wherein: The sunshade curtain (2) includes an airbag (4), and the driving mechanism (3) is configured to expand the sunshade curtain (2) to a sunshade position by inflating the airbag (4) and to contract the sunshade curtain (2) to a storage position by deflating the airbag (4). At least a portion of the inflatable air chamber (5) of the airbag (4) is arranged, in particular supported, on guide rails (6) located on both sides of the sunshade curtain (2) for guiding the sunshade curtain (2) to extend and contract.

2. The sunshade device for a vehicle according to claim 1, characterized in that: The airbag (4) comprises a longitudinal airbag structure (4.1) extending through the sunshade (2) in the longitudinal direction of the vehicle and / or a transverse airbag structure (4.2) extending through the sunshade (2) in the transverse direction of the vehicle.

3. The sunshade device for a vehicle according to claim 1 or 2, characterized in that: The longitudinal airbag structures (4.1) and / or the transverse airbag structures (4.2) are arranged in the sun blind (2) at a distance from one another and are in particular cylindrical after inflation.

4. The sunshade device for a vehicle according to claim 2 or 3, characterized in that: The guide rail (6) is fixed on the inner wall of the vehicle near the lower side of the roof (7) in the vehicle interior along the longitudinal direction of the vehicle, and with the help of the longitudinal airbag structure (4.1) and / or the transverse airbag structure (4.2), the sunshade (2) moves along the guide rail (6) in the form of an arched cross section when unfolded.

5. The sunshade device for a vehicle according to any one of claims 1 to 4, characterized in that: The airbag (4) has a preset convex shape (9) after the sunshade (2) is unfolded, and the upper surface of the airbag (4) is in contact with the lower surface of the vehicle roof (7), especially the glass roof cover, through the convex shape (9), especially completely in contact with the lower surface of the vehicle roof (7).

6. The sunshade device for a vehicle according to any one of claims 1 to 5, characterized in that: The sunshade curtain (2) itself is made of a light-proof material and / or a reflective material, especially a silver material, is coated on the upper surface of the sunshade curtain (2), and / or The airbag (4) comprises a light-shielding layer located on the outermost side and / or a reflective material, in particular a silver material, is coated on the upper surface of the airbag (4).

7. The sunshade device for a vehicle according to any one of claims 1 to 6, characterized in that: In the storage position, the sunshade (2) is completely stored in a decorative component, especially a ceiling decorative panel, located at an end portion of the roof (7) in the longitudinal direction of the vehicle, especially at the rear end portion.

8. The sunshade device for a vehicle according to claim 7, characterized in that: A reeling mechanism for the sunshade (2) is arranged in the decorative component, wherein a reeling cable (8) of the reeling mechanism extends in the guide rail (6), and a mounting belt for the sunshade (2) is fixed on the guide rail (6), wherein the mounting belt can move with the sunshade (2).

9. The sunshade device for a vehicle according to claim 7 or 8, characterized in that: The driving mechanism (3) is arranged in the decorative element and comprises: An air pump (10), in particular a bidirectional air pump, is used to inflate or deflate the airbag (4). A control valve (11) for controlling the amount of air in the airbag (4) so ​​as to be able to unfold the sunshade curtain (2) to different sunshade positions, and an air guide line (12) for connecting to an inflatable air chamber (5) of the air bag (4) arranged on the guide rail (6), The sunshade device (1) further comprises a control unit (13) for controlling and adjusting the drive mechanism (3), in particular the air pump (10) and / or the control valve (11).

10. A vehicle, comprising a sunshade device (1) according to any one of claims 1 to 9.

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