Sun-shading curtain device, glass assembly and vehicle

Abstract

The invention provides a sunshade curtain device, a glass assembly and a vehicle, the sunshade curtain device comprises a curtain body and a magnetic part, the curtain body comprises a first edge and a second edge which are oppositely arranged, the curtain body is provided with an avoiding opening, an opening of the avoiding opening is formed in the first edge, the avoiding opening penetrates through the curtain body in the thickness direction of the curtain body, and the magnetic part is installed at the avoiding opening and is used for fixing the magnetic part to the first edge. And the opening is used for closing or opening the avoiding opening. By means of the sunshade curtain device, the problem that interference is formed between the sunshade curtain device and the to-be-avoided piece can be solved, and the good shading effect is achieved.

Description

Technical Field

[0001] The present application relates to the technical field, and in particular to a sunshade device, a glass assembly and a vehicle. Background Art

[0002] With the development of society, vehicles such as cars have become an indispensable means of transportation in people's daily lives. However, people often encounter some problems in the process of using cars. For example, in the hot summer, sunlight can directly shine into the car through the glass, causing the temperature inside the car to rise rapidly, which not only makes people feel uncomfortable, but also may accelerate the aging of electronic components and interior fabrics in the car. Therefore, a sunshade device is needed to shade the glass. However, when a piece to be avoided, such as an interior rearview mirror, is installed on the glass, the sunshade device will interfere with the piece to be avoided, thereby affecting the shading effect of the sunshade device. Summary of the invention

[0003] The purpose of the embodiments of the present application is to provide a sunshade device, a glass assembly and a vehicle. The sunshade device can solve the problem of interference between the sunshade device and the part to be avoided, and has a good shading effect.

[0004] The present application provides a sunshade curtain device, which includes a curtain body and a magnetic member. The curtain body includes a first edge and a second edge arranged opposite to each other. The curtain body is provided with an avoidance opening. The opening of the avoidance opening is arranged at the first edge, and the avoidance opening penetrates the curtain body along the thickness direction of the curtain body. The magnetic member is installed at the avoidance opening and is used to close or open the avoidance opening.

[0005] In the sunshade device provided in the embodiment of the present application, by setting a avoidance opening at the first edge of the curtain body, when the curtain body of the sunshade device moves to the position of the part to be avoided, the avoidance opening can avoid the part to be avoided, thereby avoiding the part to be avoided from affecting the sunshade effect of the sunshade device, and solving the problem that the curtain body of the sunshade device interferes with the part to be avoided. In addition, by installing a magnetic part at the avoidance opening, on the one hand, the avoidance opening can be opened by the magnetic part without affecting the avoidance of the part to be avoided by the avoidance opening, and on the other hand, the avoidance opening can be closed by the magnetic part, thereby avoiding light from entering through the avoidance opening, solving the problem that the avoidance opening of the curtain body is easy to leak light, and improving the sunshade effect of the sunshade device. The sunshade device provided in the embodiment of the present application has low assembly difficulty and good shading effect, and has good application prospects in the fields of vehicles, doors and windows, glass curtain walls, etc.

[0006] In a possible embodiment, the avoidance opening includes a bottom wall, a first side wall and a second side wall, the bottom wall is arranged opposite to the opening of the avoidance opening and is spaced apart from the second edge, the first side wall and the second side wall are both connected to the bottom wall and are arranged opposite to each other, and the magnetic part includes a first magnet and a second magnet, the first magnet is connected to the first side wall, the second magnet is connected to the second side wall, and is attracted to the first magnet.

[0007] By installing a first magnet on the first side wall of the avoidance opening of the curtain body and installing a second magnet on the second side wall of the avoidance opening, on the one hand, the first magnet and the second magnet can separate after touching the object to be avoided, and will not affect the avoidance of the avoidance opening to the object to be avoided. On the other hand, after the object to be avoided passes through the position between the first magnet and the second magnet, the first magnet and the second magnet attract each other, and the first magnet and the second magnet fit together to close the avoidance opening, thereby avoiding light from entering through the avoidance opening, thereby solving the problem of light leakage in the avoidance opening of the curtain body and improving the sunshade effect of the sunshade curtain device.

[0008] In a possible implementation, the sunshade curtain device includes a roller, the second edge is connected to the roller, and the curtain body and the magnetic member can be wound around the roller.

[0009] In a possible embodiment, the first magnet is provided with a first groove, and / or the second magnet is provided with a second groove; the sunshade curtain device has a retracted state, when the sunshade curtain device is in the retracted state, the opening of the first groove faces the roller, and the first groove is recessed in a direction away from the roller; and / or the second magnet is provided with a second groove, when the sunshade curtain device is in the retracted state, the opening of the second groove faces the roller, and the second groove is recessed in a direction away from the roller.

[0010] By providing a first groove on the first magnet, the side walls of the first groove can be close to each other when the first magnet is wound around the reel, thereby reducing the stress generated by the first magnet during the winding process, facilitating the winding of the first magnet, and solving the problem that the first magnet is not easy to wind up when it is wound together with the curtain body because the thickness of the first magnet is larger than the thickness of the curtain body. By providing a second groove on the second magnet, the side walls of the second groove can be close to each other when the second magnet is wound around the reel, thereby reducing the stress generated by the second magnet during the winding process, facilitating the winding of the second magnet, and solving the problem that the second magnet is not easy to wind up when it is wound together with the curtain body because the thickness of the second magnet is larger than the thickness of the curtain body.

[0011] In a possible implementation, the thickness of the first magnet is D1, the depth of the first groove is h1, and D1-h1≥1mm; the thickness of the second magnet is D2, the depth of the second groove is h2, and D2-h2≥1mm, which can ensure that the thickness of the thinnest part of the first magnet or the second magnet is not too small, thereby ensuring the magnetic force of the first magnet and the second magnet while avoiding the first magnet and the second magnet from breaking when winding.

[0012] In a possible implementation, the thickness of the first magnet is D1, the width of the first magnet is Z1, D1 / 2≤Z1≤2D1; the thickness of the second magnet is D2, the width of the first magnet is Z2, D2 / 2≤Z2≤2D2, which can ensure the strength of the first magnet and the second magnet and facilitate winding.

[0013] In a possible implementation, the magnetic member satisfies: L≥(2Kd 2 +S) / nD, where S = S1 + S2 - S3;

[0014] L is the length of the projection of the first magnet on the second magnet overlapping with the second magnet in the extension direction, d is the farthest relative distance between the first magnet and the second magnet, f is the magnitude of the magnetic force between the first magnet and the second magnet when the farthest relative distance between the first magnet and the second magnet is reached, B1 is the magnetic induction intensity of the first magnet, B2 is the magnetic induction intensity of the second magnet, μ0 is the vacuum magnetic permeability, S1 is the total cross-sectional area of ​​the first groove, S2 is the total cross-sectional area of ​​the second groove, S3 is the total cross-sectional area of ​​the projection of the first groove on the second magnet overlapping with the second groove, n is a redundant parameter, n is 0.7~0.9, and D is the thickness of the projection of the first magnet on the second magnet overlapping with the second magnet in the thickness direction.

[0015] In a possible implementation, there are multiple first grooves, which are arranged at intervals along the winding direction of the first magnet; and / or there are multiple second grooves, which are arranged at intervals along the winding direction of the second magnet.

[0016] In a possible implementation, the first magnet is wound around the circumference of the reel along the extension direction of the first magnet, and the second magnet is wound around the circumference of the reel along the extension direction of the second magnet.

[0017] In a possible implementation, along the width direction of the avoidance opening, the farthest relative distance between the first magnet and the second magnet is d, the thickness of the first magnet is D1, 2mm≤D1≤d / 4, and the thickness of the second magnet is D2, 2mm≤D2≤d / 4, which can solve the problem of insufficient magnetic force of the first magnet and the second magnet and difficulty in winding due to excessive thickness.

[0018] In one possible embodiment, the first magnet includes a first end face, a second end face and a first side face, the first end face and the second end face are arranged opposite to each other along the extension direction of the first magnet, the first end face faces the bottom wall of the avoidance opening, and the first side face is connected between the first end face and the second end face, and the second magnet includes a third end face, a fourth end face and a second side face, the third end face and the fourth end face are arranged opposite to each other along the extension direction of the second magnet, the third end face faces the bottom wall of the avoidance opening, the second side face is connected between the third end face and the fourth end face, and is arranged opposite to the first side face.

[0019] In a possible implementation, the first magnet further includes a first transition surface, the first transition surface is connected between the first end surface and the first side surface, the second magnet further includes a third transition surface, the third transition surface is connected between the third end surface and the second side surface, and the distance between the first transition surface and the third transition surface gradually decreases along the direction from the bottom wall of the avoidance opening to the opening of the avoidance opening, so that when the sunshade device switches from the open state to the rolled-up state, it is convenient for the avoidance member to be separated from the first magnet and the second magnet, which is conducive to improving the smoothness of the use of the sunshade device;

[0020] And / or, the first magnet also includes a second transition surface, the second transition surface is connected between the second end surface and the first side surface, the second magnet also includes a fourth transition surface, the fourth transition surface is connected between the fourth end surface and the second side surface, and along the direction from the opening of the avoidance opening to the bottom wall of the avoidance opening, the distance between the third transition surface and the fourth transition surface gradually decreases, so that in the process of the sunshade device switching from the retracted state to the open state, it is convenient for the part to be avoided to pass between the first magnet and the second magnet, which is beneficial to improve the smoothness of the use of the sunshade device.

[0021] In a possible implementation, the first transition surface is an arc surface, and the third transition surface is an arc surface; and / or the second transition surface is an arc surface, and the fourth transition surface is an arc surface.

[0022] In a possible implementation, the first magnet and the second magnet are both spaced apart from the bottom wall, and a clearance space is formed between the first magnet and the second magnet. The clearance space is used to avoid the object to be avoided. The sunshade device further includes an elastic cloth, which is installed in the clearance space and used to adjust the size of the clearance space. By providing the elastic cloth, the elasticity of the elastic cloth is used to adjust the size of the clearance space, so that the sunshade device can be further tightened at the clearance space, thereby further avoiding the problem of light leakage in the sunshade device at the clearance space, and further improving the sunshade effect of the sunshade.

[0023] In a possible embodiment, the first edge includes a first part and a second part, the first part and the second part are located on both sides of the avoidance opening, the first part is located on the side of the first magnet facing away from the second magnet, and the second part is located on the side of the second magnet facing away from the first magnet; the sunshade curtain device also includes a first support body and a second support body, the first support body is connected to the end of the first part facing the first magnet, and the second support body is connected to the end of the second part facing the second magnet.

[0024] The first support body and the second support body are rigid and not easy to deform. They respectively support the first part and the second part of the curtain body so that the curtain body can maintain the unfolded shape, thereby ensuring that the first magnet and the second magnet can be reset and adsorbed to ensure the closing effect of the avoidance opening, thereby ensuring the sunshade effect of the sunshade curtain device.

[0025] In a possible implementation, the sunshade curtain device further includes a roller, and the roller shaft is installed on the inner side of the roller. When the sunshade curtain device is in a reeled state, the curtain body and the magnetic member are both reeled in the roller, which can reduce the space occupied by the sunshade curtain device.

[0026] An embodiment of the present application also provides a glass assembly, including a vehicle window glass and a sunshade device as described above, wherein the sunshade device has an open state, and when the sunshade device is in the open state, the projection of the curtain body on the vehicle window glass covers at least a portion of the vehicle window glass.

[0027] An embodiment of the present application also provides a vehicle, including a part to be avoided and a glass assembly as described above, wherein the part to be avoided includes a mounting portion, which is mounted on the vehicle window glass, and when the sunshade device is in an open state, the mounting portion is inserted into the avoidance opening.

[0028] In a possible implementation manner, the vehicle window glass is a front windshield, and the object to be avoided is an interior rearview mirror. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0030] Figure 1 A schematic diagram of the structure of a sunshade device provided in an embodiment of the present application applied to a vehicle;

[0031] Figure 2 for Figure 1 A schematic diagram of a portion of the structure of the vehicle shown;

[0032] Figure 3for Figure 2 A schematic diagram of the assembly structure of the sunshade of the sunshade device and the mounting portion of the interior rearview mirror in the partial structure shown;

[0033] Figure 4 for Figure 3 A schematic diagram of a portion of the structure of the sunshade in the assembly structure shown;

[0034] Figure 5 for Figure 4 A schematic diagram of the side structure of the first magnet in the sunshade curtain shown;

[0035] Figure 6 for Figure 4 A schematic diagram of the structure of part A of the sunshade shown;

[0036] Figure 7 for Figure 4 A schematic diagram of the structure of part B of the sunshade shown;

[0037] Figure 8 for Figure 2 A schematic diagram of a partial cross-sectional structure of the sunshade device in a rolled-up state in the partial structure shown;

[0038] Fig. 9 Schematic diagrams of top views of magnetic components of other embodiments;

[0039] Fig.10 It is a schematic diagram of the cross-sectional structure when the first magnet and the second magnet in the magnetic member of some other embodiments are misaligned along the extension direction;

[0040] Fig.11 It is a schematic diagram of the cross-sectional structure when the first magnet and the second magnet are misaligned along the thickness direction in the magnetic member of some other embodiments.

[0041] Figure numerals: 1, vehicle; 100, vehicle frame; 110, glass assembly; 200, vehicle window glass; 300, interior rearview mirror; 301, mounting portion; 500, sunshade device; 510, sunshade; 530, rolling mechanism; 10, curtain body; 11, first edge; 101, first part; 103, second part; 13, second edge; 20, escape; 201, escape space; 21, bottom wall; 23, first side wall; 25, second side wall; 40, magnetic member; 41, first magnet; 401, first groove; 411, first end face; 412, first surface; 413, second end face; 414, second surface; 415, first side face; 417, first transition face; 419, second transition face; 42, second magnet; 402, second groove; 421, third end face; 422, third surface; 423, fourth end face; 424, fourth surface; 425, second side face; 427, third transition face; 429, fourth transition face; 50, support member; 51, first support body; 52, second support body; 60, reel; 70, reel; 61, accommodating chamber; 63, barrel mouth; 90, elastic cloth; overlapping portion 403. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0043] See also Figure 1 , Figure 1 This is a structural schematic diagram of a sunshade device 500 provided in an embodiment of the present application applied to a vehicle 1.

[0044] The sunshade device can be applied to light-transmitting parts of a vehicle 1, doors and windows, glass curtain walls, etc., to block light passing through the light-transmitting parts. When a piece to be avoided is installed on the light-transmitting part, the curtain body of the sunshade device will interfere with the piece to be avoided, and the piece to be avoided will affect the normal use of the sunshade device.

[0045] Taking the part to be avoided as the interior rearview mirror 300 of the vehicle 1 as an example, when the curtain body of the sunshade device interferes with the interior rearview mirror 300, the method of covering the interior rearview mirror 300 with the curtain body of the sunshade device will compress the front row space inside the vehicle 1. The current solution is usually to cut and remove the curtain body at the place where the sunshade device interferes with the interior rearview mirror 300, but when using this method, light leakage is easily caused at the cut part of the curtain body.

[0046] In order to solve the above technical problems, the embodiment of the present application provides a sunshade device 500, which can be used on light-transmitting parts of a vehicle 1, doors and windows, glass curtain walls, etc., and can avoid the parts to be avoided installed on the light-transmitting parts, and is not easy to cause light leakage. The following is an example of the sunshade device 500 provided in the embodiment of the present application being applied to a vehicle 1, with the light-transmitting part being the window glass 200, the window glass 200 being the front windshield of the vehicle 1, and the part to be avoided being the interior rearview mirror 300.

[0047] Specifically, the vehicle 1 includes a vehicle frame 100 , a glass assembly 110 , and an interior rearview mirror 300 . The glass assembly 110 is mounted on the vehicle frame 100 , and the interior rearview mirror 300 is mounted on the glass assembly 110 .

[0048] Among them, the glass assembly 110 includes a vehicle window glass 200 and a sunshade device 500. The vehicle window glass 200 is installed on the vehicle frame 100 to realize the installation of the glass assembly 110 on the vehicle frame 100. The vehicle window glass 200 can be tempered glass or laminated glass. Among them, the laminated glass can provide structural and protective functions for the vehicle 1. Exemplarily, the laminated glass includes two or more layers of glass plates, and an intermediate layer formed by polyvinyl butyral (Polyvinyl Butyral, PVB) or other types of laminated materials is sandwiched between the glass plates. In this embodiment, the vehicle window glass 200 is the front windshield of the vehicle 1. It can be understood that in other embodiments, the vehicle window glass 200 can also be the rear windshield, sunroof glass, side window glass, etc. of the vehicle 1, and in this case, the part to be avoided can be other parts installed on the vehicle window glass 200.

[0049] The sunshade device 500 is installed on the vehicle frame 100 and is used to block the light passing through the vehicle window glass 200. In this embodiment, the sunshade device 500 is located on the inner side of the vehicle 1.

[0050] The interior rearview mirror 300 is mounted on the surface of the vehicle window glass 200 facing the inner side of the vehicle 1. The interior rearview mirror 300 includes a mounting portion 301, and the mounting portion 301 is mounted on the surface of the vehicle window glass 200 facing the inner side of the vehicle 1, so as to realize the installation of the interior rearview mirror 300 on the vehicle window glass 200. Exemplarily, the mounting portion 301 of the interior rearview mirror 300 is a rearview mirror bracket, which is roughly in the shape of a long rod and has a circular cross section. It is understandable that the mounting portion 301 of the interior rearview mirror 300 is usually installed at a position of the vehicle window glass 200 close to the top of the vehicle 1, so as to facilitate the user to observe and use in the vehicle 1.

[0051] Combined with reference Figure 1 and Figure 2 , Figure 2 for Figure 1 The schematic diagram of a part of the structure of the vehicle 1 is shown. Figure 1 The sunshade device 500 is in a rolled-up state. Figure 2 The sunshade device 500 is in use.

[0052] For the convenience of description, we define Figure 2 The length direction of the sunshade device 500 in the vehicle 1 is the X-axis direction, the width direction is the Y-axis direction, and the thickness direction is the Z-axis direction. The X-axis direction, the Y-axis direction and the Z-axis direction are perpendicular to each other.

[0053] The sunshade curtain device 500 includes a sunshade curtain 510 and a rolling mechanism 530. The rolling mechanism 530 is mounted on the vehicle frame 100 to achieve the sunshade curtain device 500 being mounted on the vehicle frame 100. The rolling mechanism 530 is connected to the sunshade curtain 510 and is used to roll up the sunshade curtain 510.

[0054] The sunshade device 500 has an open state and a retracted state, and the sunshade device 500 can switch between the open state and the retracted state. When the sunshade device 500 is in the open state, the projection of the sunshade 510 on the vehicle window glass 200 covers at least a portion of the vehicle window glass 200 to block the light passing through the vehicle window glass 200. When the sunshade device 500 is in the retracted state, the sunshade 510 is retracted in the retracting mechanism 530 to avoid blocking the light passing through the vehicle window glass 200.

[0055] See also Figure 3 and Figure 4 , Figure 3 for Figure 2 The schematic diagram of the assembly structure of the sunshade 510 of the sunshade device 500 and the mounting portion 301 of the interior rearview mirror 300 in the partial structure shown, Figure 4 for Figure 3 A schematic diagram of a portion of the structure of the sunshade curtain 510 in the assembly structure shown.

[0056] Specifically, the sunshade curtain 510 includes a curtain body 10, a magnetic member 40 and a support member 50, and the magnetic member 40 and the support member 50 are both installed on the curtain body 10. The sunshade curtain 510 includes an unfolded state. When the sunshade curtain device 500 is in the open state, the sunshade curtain 510 is in the unfolded state, and the projection of the curtain body 10 in the sunshade curtain 510 on the vehicle window glass 200 covers at least a portion of the vehicle window glass 200, so that the sunshade curtain 510 blocks the light passing through the vehicle window glass 200. In this embodiment, the contour of the curtain body 10 is substantially the same as the contour of the vehicle window glass 200, so that when the sunshade curtain device 500 is in the open state, the projection of the curtain body 10 on the vehicle window glass 200 completely covers the vehicle window glass 200. Exemplarily, the material of the curtain body 10 can be a curtain fabric.

[0057] In this embodiment, the extension direction of the curtain body 10 is the X-axis direction, the width direction is the Y-axis direction, and the thickness is the Z-axis direction. The curtain body 10 includes a first edge 11 and a second edge 13, and the first edge 11 and the second edge 13 are arranged opposite to each other along the extension direction of the curtain body 10, that is, they are arranged opposite to each other along the X-axis direction. The curtain body 10 is provided with a avoidance opening 20, and the opening of the avoidance opening 20 is arranged at the first edge 11, and is recessed from the first edge 11 to the second edge 13. The avoidance opening 20 penetrates the curtain body 10 along the thickness direction of the curtain body 10. In this embodiment, the width direction of the avoidance opening 20 is the Y-axis direction. Exemplarily, the opening diameter of the avoidance opening 20 along the width direction is 2mm to 3mm larger than the diameter of the mounting portion 301 of the part to be avoided (in this embodiment, the bracket of the rearview mirror 300), so that the mounting portion 301 of the part to be avoided can pass through the avoidance opening 20, thereby achieving avoidance of the part to be avoided. Exemplarily, in this embodiment, the avoidance opening 20 is roughly "U"-shaped. The escape opening 20 includes a bottom wall 21, a first side wall 23, and a second side wall 25. The bottom wall 21 is disposed opposite to the opening of the escape opening 20 and is spaced apart from the second edge 13. The first side wall 23 and the second side wall 25 are both connected to the bottom wall 21 and are disposed opposite to each other along the width direction of the escape opening 20, i.e., along the Y-axis direction.

[0058] In this embodiment, the avoidance opening 20 divides the first edge 11 into a first portion 101 and a second portion 103, and the first portion 101 and the second portion 103 are located on both sides of the avoidance opening 20 along the width direction. In this embodiment, the first portion 101 is located on the side of the avoidance opening 20 facing the positive direction of the Y axis, and the second portion 103 is located on the side facing the negative direction of the Y axis. The first portion 101 is located on the side of the first side wall 23 away from the second side wall 25, and the second portion 103 is located on the side of the second side wall 25 away from the first side wall 23.

[0059] The magnetic member 40 is installed on the avoidance opening 20 and is used to close or open the avoidance opening 20. In the present embodiment, the magnetic member 40 is spaced apart from the bottom wall 21 of the avoidance opening 20 to form an avoidance space 201. The avoidance space 201 is used to accommodate the mounting portion 301 of the member to be avoided when the sunshade device 500 is in use. Specifically, the magnetic member 40 includes a first magnet 41 and a second magnet 42. In the present embodiment, the extension direction of the first magnet 41 and the second magnet 42 is the X-axis direction, the width direction is the Y-axis direction, and the thickness direction is the Z-axis direction. Among them, the extension length of the first magnet 41 is L1, and the extension length of the second magnet 42 is L2. Exemplarily, in the present embodiment, L1 is 100 mm and L2 is 100 mm. Among them, the first magnet 41 is connected to the first side wall 23 and is spaced apart from the bottom wall 21. The second magnet 42 is connected to the second side wall 25 and is spaced apart from the bottom wall 21.

[0060] The first magnet 41, the second magnet 42 and the bottom wall 21 are spaced apart to form an escape space 201, and the escape space 201 is used to escape the part to be avoided. Specifically, in this embodiment, the first magnet 41, the second magnet 42, a part of the first side wall 23, a part of the second side wall 25 and the bottom wall 21 are enclosed to form an escape space 201, and the escape space 201 is used to escape the mounting portion 301 of the part to be avoided (the interior rearview mirror 300 in this embodiment). The second magnet 42 and the first magnet 41 attract each other. In this embodiment, the first magnet 41 and the second magnet 42 are roughly in the shape of long strips, and the extension direction of the first magnet 41 is parallel to the extension direction of the first side wall 23, and the extension direction of the second magnet 42 is parallel to the extension direction of the second side wall 25.

[0061] Combined with reference Figure 5 , Figure 6 and Figure 7 , Figure 5 for Figure 4 The schematic diagram of the side structure of the first magnet 41 in the sunshade curtain 510 is shown. Figure 6 for Figure 4 The structural diagram of the A part of the sunshade curtain 510 is shown in FIG. Figure 7 for Figure 4 A schematic structural diagram of part B of the sunshade curtain 510 is shown.

[0062] The first magnet 41 includes a first end face 411, a second end face 413 and a first side face 415. The first end face 411 and the second end face 413 are arranged opposite to each other along the extension direction of the first magnet 41. The first end face 411 faces the bottom wall 21 of the avoidance opening 20 and is spaced apart from the bottom wall 21. The second end face 413 faces away from the bottom wall 21 of the avoidance opening 20. The first side face 415 is connected between the first end face 411 and the second end face 413. In this embodiment, the first end face 411 faces the negative direction of the X-axis, the second end face 413 faces the positive direction of the X-axis, and the first side face 415 faces the negative direction of the Y-axis.

[0063] The second magnet 42 includes a third end face 421, a fourth end face 423 and a second side face 425. The third end face 421 and the fourth end face 423 are arranged opposite to each other along the extension direction of the second magnet 42. The third end face 421 faces the bottom wall 21 of the avoidance opening 20 and is spaced apart from the bottom wall 21. The fourth end face 423 faces away from the bottom wall 21 of the avoidance opening 20. The second side face 425 is connected between the third end face 421 and the fourth end face 423 and is arranged opposite to the first side face 415. In this embodiment, the third end face 421 faces the negative direction of the X-axis, the fourth end face 423 faces the positive direction of the X-axis, and the second side face 425 faces the positive direction of the Y-axis.

[0064] In this embodiment, the first magnet 41 further includes a first transition surface 417 and a second transition surface 419. The first transition surface 417 is connected between the first end surface 411 and the first side surface 415, and the second transition surface 419 is connected between the second end surface 413 and the first side surface 415. The second magnet 42 further includes a third transition surface 427 and a fourth transition surface 429, the third transition surface 427 is connected between the third end surface 421 and the second side surface 425, and the fourth transition surface 429 is connected between the fourth end surface 423 and the second side surface 425.

[0065] Among them, along the direction from the bottom wall 21 of the avoidance opening 20 to the opening of the avoidance opening 20, the distance between the first transition surface 417 and the third transition surface 427 gradually decreases. Exemplarily, in this embodiment, the first transition surface 417 is an arc surface, and the third transition surface 427 is an arc surface. Specifically, the first magnet 41 and the second magnet 42 can be rounded to form the first transition surface 417 of the arc surface and the third transition surface 427 of the arc surface.

[0066] The distance between the second transition surface 419 and the fourth transition surface 429 gradually decreases along the direction from the opening of the avoidance opening 20 to the bottom wall 21 of the avoidance opening 20. Exemplarily, in this embodiment, the second transition surface 419 is an arc surface, and the fourth transition surface 429 is an arc surface. Specifically, the first magnet 41 and the second magnet 42 can be rounded to form the second transition surface 419 and the fourth transition surface 429.

[0067] The support member 50 includes a first support body 51 and a second support body 52. ​​The first support body 51 is connected to the end of the first portion 101 facing the first magnet 41 and is spaced apart from the first magnet 41. The second support body 52 is connected to the end of the second portion 103 facing the second magnet 42 and is spaced apart from the second magnet 42.

[0068] Combined with reference Figure 2 and Figure 8 , Figure 8 for Figure 2 The partial cross-sectional structure diagram of the sunshade device 500 in the partial structure shown is in a rolled-up state.

[0069] In the embodiment of the present application, the winding mechanism 530 is located on the side of the window glass 200 facing the bottom of the vehicle 1. Specifically, the winding mechanism 530 includes a reel 60 and a reel 70. The reel 60 is mounted on the frame 100 to realize the installation of the winding mechanism 530 on the frame 100. The reel 60 is provided with a accommodating chamber 61 and a barrel opening 63. Among them, the accommodating chamber 61 is used to accommodate the sunshade 510, so that the sunshade 510 is rolled up on the inner side of the reel 60. The opening of the barrel opening 63 is arranged on the circumference of the reel 60 and is connected to the accommodating chamber 61. In the present embodiment, the reel 60 is a hollow cylindrical shape, and the cross-sectional shape of the reel 60 is circular. It can be understood that in other embodiments, the reel 60 can also be a hollow cuboid, and the cross-sectional shape of the reel 60 is a rectangle, or the reel 60 can also be other hollow polygonal prisms, etc. The embodiment of the present application does not limit the shape of the reel 60. The reel 70 is rotatably mounted on the reel 60 and is located in the accommodating cavity 61 of the reel 60, so that the reel 70 is installed inside the reel 60. The second edge 13 of the curtain body 10 is connected to the reel 70. In this embodiment, the reel 70 is substantially cylindrical.

[0070] In the embodiment of the present application, the sunshade device 500 is usually in a rolled-up state when not in use. When the sunshade device 500 is in a rolled-up state, the sunshade device 500 is located on the side of the vehicle window glass 200 facing the bottom of the vehicle 1, and the sunshade device 500 can be hidden at the bottom of the vehicle window glass 200, thereby improving the visual effect of the appearance. The curtain body 10 and the magnetic member 40 in the sunshade 510 are both wound around the circumference of the reel 70, and are rolled up in the accommodating cavity 61 of the reel 60 in the reeling mechanism 530, so that the curtain body 10 and the magnetic member 40 are both rolled up in the reel 60, thereby reducing the space occupied by the sunshade device 500. Among them, the first magnet 41 in the magnetic member 40 is wound around the circumference of the reel 70 along the extension direction of the first magnet 41, and the second magnet 42 is wound around the circumference of the reel 70 along the extension direction of the second magnet 42. The first magnet 41 and the second magnet 42 attract each other, so that the avoidance opening 20 of the curtain body 10 is closed, thereby realizing that the magnetic member 40 makes the avoidance opening 20 closed.

[0071] When the sunshade curtain device 500 is in use, the curtain body 10 and the magnetic member 40 in the sunshade curtain 510 can be wound on the reel 70. Specifically, the reel 70 can rotate along a first winding direction (e.g., clockwise), the second edge 13 of the curtain body 10 in the sunshade curtain 510 is fixed relative to the reel 70, and the first edge 11 moves in a direction away from the reel 70 and toward the object to be avoided (the interior rearview mirror 300 in this embodiment), so that the sunshade curtain 510 moves toward the object to be avoided, and the sunshade curtain 510 moves out of the barrel mouth 63 of the reel 60 and is in an unfolded state, thereby realizing that the sunshade curtain device 500 is switched from a rolled state to an opened state. Among them, when the sunshade 500 moves to the position of the part to be avoided, the installation part 301 of the part to be avoided can touch and push away the first magnet 41 and the second magnet 42, and the first magnet 41 and the second magnet 42 are separated so that the installation part 301 of the part to be avoided passes through the opening of the avoidance opening 20 in the curtain body 10, and enters between the first side wall 23 and the second side wall 25 of the avoidance opening 20, so that the magnetic part 40 opens the avoidance opening 20, and the avoidance opening 20 of the curtain body 10 forms an avoidance for the installation part 301 of the part to be avoided, thereby solving the problem of interference between the curtain body 10 and the part to be avoided.

[0072] When the sunshade device 500 is in the open state, the projection of the curtain body 10 on the vehicle window glass 200 covers at least part of the vehicle window glass 200, so as to achieve the sunshade effect of the sunshade device 500. At this time, the mounting portion 301 of the piece to be avoided is inserted into the avoidance opening 20 of the curtain body 10 and is located in the avoidance space 201. The first magnet 41 connected to the first side wall 23 of the avoidance opening 20 and the second magnet 42 connected to the second side wall 25 of the avoidance opening 20 can be reset and adsorbed due to mutual attraction. The first magnet 41 and the second magnet 42 fit together to make the avoidance opening 20 closed again, preventing light from entering the interior of the vehicle 1 from the avoidance opening 20, thereby solving the problem of easy light leakage in the avoidance opening 20 of the curtain body 10 and improving the sunshade effect of the sunshade device 500. Among them, the first support body 51 and the second support body 52 are rigid and not easy to deform. By supporting the first part 101 and the second part 103 of the curtain body 10 respectively, the curtain body 10 can maintain the unfolded shape, thereby ensuring that the first magnet 41 and the second magnet 42 can be reset and adsorbed to ensure the closing effect of the avoidance opening 20, thereby ensuring the shading effect of the sunshade curtain device 500.

[0073] When the sunshade device 500 is not needed, the roller 70 can rotate in the opposite direction of the first winding direction (such as counterclockwise), and the second edge 13 of the curtain body 10 in the sunshade curtain 510 is fixed relative to the roller 70, and the first edge 11 moves toward the roller 70 to achieve the sunshade curtain 510 to detach from the part to be avoided and move in the direction away from the part to be avoided. The mounting portion 301 of the part to be avoided detaches from the avoidance opening 20 of the curtain body 10, and the sunshade curtain 510 enters from the barrel opening 63 of the roller 60 and is wound around the roller 70 in the circumferential direction of the roller 70, so that the sunshade curtain 510 is accommodated in the accommodating cavity 61 of the roller 60, thereby achieving the sunshade curtain device 500 switching from the open state to the rolled-up state.

[0074] It should be noted that, in the embodiment of the present application, the sunshade device 500 can be switched between the rolled state and the opened state in a manual or automatic manner. For example, fixing holes can be respectively provided on the first support body 51 and the second support body 52 of the support member 50, and fixing members such as hooks can be respectively provided on the side of the frame 100 located at the top of the window glass 200 facing the vehicle 1, and the support member 50 in the sunshade 510 can be manually pulled to switch the sunshade device 500 to the opened state. At the same time, the hook is extended into the fixing holes of the first support body 51 and the second support body 52 to be fixed, so as to maintain the sunshade device 500 in the opened state. When the sunshade device 500 is not needed, the support member 50 of the sunshade 510 can be manually removed from the hook, and the reel 70 can be rotated along the first winding direction to wind the sunshade 510 and accommodate it in the accommodating cavity 61 of the reel 60, so as to switch the sunshade 500 to the rolled state.

[0075] Exemplarily, two support brackets can be provided in the sunshade device 500, and the two support brackets are respectively installed on both sides of the curtain body 10 of the sunshade 510 along the width direction, that is, along the Y-axis direction, and are respectively fixedly connected to the curtain body 10, and the two support brackets can be unfolded and folded, and the two support brackets are driven to unfold by a driving member such as a motor to drive the sunshade 510 to move, so as to switch the sunshade device 500 to an open state. At this time, the support bracket can support the sunshade 510 to maintain the sunshade device 500 in an open state. When the sunshade device 500 is not needed, the driving member can be used to drive the two support brackets to fold, and the driving member can be used to drive the reel 70 to rotate in the opposite direction of the first winding direction, so as to wind the sunshade 510 and accommodate it in the accommodating cavity 61 of the reel 60, so as to switch the sunshade 500 to a rolled-up state.

[0076] In the sunshade device 500 provided in the embodiment of the present application, by setting the avoidance opening 20 on the first edge 11 of the curtain body 10, when the curtain body 10 of the sunshade device 500 moves to the position of the part to be avoided, the avoidance opening 20 can avoid the part to be avoided, thereby preventing the part to be avoided from affecting the sunshade effect of the sunshade device 500, and solving the problem that the curtain body 10 of the sunshade device 500 will interfere with the part to be avoided. In addition, by installing the magnetic part 40 at the avoidance opening 20, on the one hand, the avoidance opening 20 is opened by the magnetic part 40, which does not affect the avoidance of the avoidance opening 20 to the part to be avoided, and on the other hand, the avoidance opening 20 can be closed by the magnetic part 40, thereby preventing light from entering from the avoidance opening 20, thereby solving the problem that the avoidance opening 20 of the curtain body 10 is easy to leak light, and improving the sunshade effect of the sunshade device 500. The sunshade device 500 provided in the embodiment of the present application is easy to assemble and has a good shading effect, and has good application prospects in the fields of vehicles 1, doors and windows, glass curtain walls, etc.

[0077] In addition, by installing the first magnet 41 on the first side wall 23 in the avoidance opening 20 of the curtain body 10, and installing the second magnet 42 on the second side wall 25 of the avoidance opening 20, on the one hand, the first magnet 41 and the second magnet 42 can separate after touching the object to be avoided, and will not affect the avoidance of the avoidance opening 20 to the object to be avoided. On the other hand, after the mounting portion 301 of the object to be avoided passes through the position between the first magnet 41 and the second magnet 42, the first magnet 41 and the second magnet 42 attract each other, and the first magnet 41 and the second magnet 42 fit together to close the avoidance opening 20, thereby preventing light from entering the interior of the vehicle 1 from the avoidance opening 20, thereby solving the problem of easy light leakage in the avoidance opening 20 of the curtain body 10 and improving the sunshade effect of the sunshade curtain device 500.

[0078] In addition, by setting the direction from the bottom wall 21 of the avoidance opening 20 to the opening of the avoidance opening 20, the distance between the first transition surface 417 and the third transition surface 427 is gradually reduced, so that in the process of the sunshade device 500 switching from the open state to the rolled-up state, it is convenient for the mounting portion 301 of the avoidance member to be separated from the first magnet 41 and the second magnet 42, which is beneficial to improving the smoothness of use of the sunshade device 500.

[0079] By setting the direction from the opening of the avoidance opening 20 to the bottom wall 21 of the avoidance opening 20, the distance between the second transition surface 419 and the fourth transition surface 429 is gradually reduced, so that in the process of the sunshade device 500 switching from the rolled state to the open state, it is convenient for the installation portion 301 of the avoidance member to pass between the first magnet 41 and the second magnet 42, which is beneficial to improve the smoothness of the use of the sunshade device 500.

[0080] Continue reading Figure 3 , Figure 4 and Figure 7 In the embodiment of the present application, the sunshade 510 of the sunshade device 500 further includes an elastic cloth 90, which is installed in the avoidance space 201 and is used to adjust the size of the avoidance space 201. Specifically, the elastic cloth 90 is located between the bottom wall 21 of the avoidance opening 20 and the magnetic member 40, and is connected between the first side wall 23 and the second side wall 25 of the avoidance space 201. In this embodiment, the elastic cloth 90 is also connected to the bottom wall 21. Exemplarily, the elastic cloth 90 can be an elastic band.

[0081] In the sunshade device 500 of the embodiment of the present application, by providing an elastic cloth 90, the elasticity of the elastic cloth 90 is used to adjust the size of the avoidance space 201, so that the sunshade device 500 can be further tightened at the avoidance space 201, thereby further avoiding the problem of light leakage of the sunshade device 500 at the avoidance space 201, and further improving the sunshade effect of the sunshade 500. Specifically, in this embodiment, the elastic cloth 90 is used to generate a pulling force on the first side wall 23 and the second side wall 25 of the avoidance space 201, so that the sunshade device 500 can be further tightened at the avoidance space 201, thereby adjusting the size of the avoidance space 201.

[0082] Continue to read Figure 5 , Figure 6 and Figure 7 In the embodiment of the present application, the first magnet 41 is further provided with a first groove 401, and the second magnet 42 is further provided with a second groove 402. Specifically, the first magnet 41 includes a first surface 412 and a second surface 414 which are arranged opposite to each other in the thickness direction. When the sunshade device 500 is in the open state, the first surface 412 faces the inner side of the vehicle 1. The opening of the first groove 401 is provided on the first surface 412, and is recessed from the first surface 412 to the second surface 414. In the present embodiment, the first groove 401 penetrates the first magnet 41 along the width direction of the first magnet 41. In the present embodiment, the thickness of the first magnet 41 is D1, and the width of the first magnet 41 is Z1. The thickness D1 of the first magnet 41 is the maximum thickness along the thickness direction of the first magnet 41. Exemplarily, the cross-sectional shape of the first groove 401 may be a triangle, a semicircle, etc., and the embodiment of the present application does not limit the cross-sectional shape of the first groove 401. There may be a plurality of first grooves 401, and the plurality of first grooves 401 are arranged at intervals along the extension direction of the first magnet 41. It is understandable that in other embodiments, the first magnet 41 may not be provided with the first groove 401, and the embodiment of the present application does not limit this.

[0083] The second magnet 42 includes a third surface 422 and a fourth surface 424 which are arranged opposite to each other in the thickness direction. When the sunshade device 500 is in the open state, the third surface 422 faces the inner side of the vehicle 1. The opening of the second groove 402 is arranged on the third surface 422, and is recessed from the third surface 422 to the fourth surface 424. In this embodiment, the second groove 402 penetrates the second magnet 42 along the width direction of the second magnet 42. In this embodiment, the thickness of the second magnet 42 is D2, and the width of the second magnet 42 is Z2. The thickness D2 of the second magnet 42 is the maximum thickness along the thickness direction of the second magnet 42. Exemplarily, the cross-sectional shape of the second groove 402 can be a triangle, a semicircle, etc., and the embodiment of the present application does not limit the cross-sectional shape of the second groove 402. There can be multiple second grooves 402, and the multiple second grooves 402 are arranged at intervals along the extension direction of the second magnet 42. It is understandable that in other embodiments, the second magnet 42 may not be provided with the second groove 402 , and the embodiment of the present application does not limit this.

[0084] See also Figure 8 When the sunshade device 500 is in the reeling state, the first magnet 41 is wound around the circumference of the reel 70 along the extension direction of the first magnet 41, and the second magnet 42 is wound around the circumference of the reel 70 along the extension direction of the second magnet 42. The opening of the first groove 401 of the first magnet 41 faces the reel 70, and the first groove 401 is recessed in the direction away from the reel 70, and the plurality of first grooves 401 are arranged at intervals along the winding direction of the first magnet 41. The opening of the second groove 402 of the second magnet 42 faces the reel 70, and the second groove 402 is recessed in the direction away from the reel 70, and the plurality of second grooves 402 are arranged at intervals along the winding direction of the second magnet 42.

[0085] In the sunshade curtain device 500 provided in the embodiment of the present application, a first groove 401 is provided in the first magnet 41 so that when the first magnet 41 is wound around the winding shaft 70, the groove side walls of the first groove 401 can be close to each other, thereby reducing the stress generated by the first magnet 41 during the winding process, making it convenient to roll up the first magnet 41, and solving the problem that when the first magnet 41 is wound together with the curtain body 10, it is inconvenient to roll up because the thickness of the first magnet 41 is larger than the thickness of the curtain body 10.

[0086] By providing the second groove 402 in the second magnet 42, when the second magnet 42 is wound around the reel 70, the side walls of the second groove 402 can approach each other, thereby reducing the stress generated by the second magnet 42 during the winding process, making it easier to wind up the second magnet 42, and solving the problem of the second magnet 42 being difficult to wind up when being wound together with the curtain body 10 because the thickness of the second magnet 42 is larger than that of the curtain body 10.

[0087] In addition, factors such as the thickness, width, length, and depth of the groove of the magnet will affect the magnetic force of the magnet. In this regard, the embodiments of the present application study the relevant parameters of the magnetic member 40.

[0088] In a possible implementation manner, the magnetic member 40 satisfies:

[0089]

[0090] make Then there is

[0091] L≥(2Kd 2 +S) / nD

[0092] Wherein, L is the length of the projection of the first magnet 41 on the second magnet 42 and the second magnet 42 along the extension direction, that is, the effective length of the magnetic member 40 along the extension direction is L, in mm. In this embodiment, the lengths of the first magnet 41 and the second magnet 42 along the extension direction are equal, and the projection of the first magnet 41 on the second magnet 42 completely overlaps with the second magnet 42 along the extension direction, so L = the extension length L1 of the first magnet 41 = the extension length L2 of the second magnet 42. Fig. 9 As shown, Fig. 9 Schematic diagram of the top view of the magnetic member 40 of some other embodiments. In some other embodiments, the projection of the first magnet 41 on the second magnet 42 does not completely overlap with the second magnet 42 along the extension direction, that is, along the X-axis direction. In this case, the extension length of the overlap between the projection of the first magnet 41 on the second magnet 42 and the second magnet 42 is L.

[0093] d is the farthest relative distance between the first magnet 41 and the second magnet 42, in mm. It should be noted that the farthest relative distance between the first magnet 41 and the second magnet 42 represented by d in the above formula refers to the farthest relative distance along the Y-axis direction formed when the mounting portion 301 of the avoidance member passes between the first magnet 41 and the second magnet 42, and the first magnet 41 and the second magnet 42 are separated by the mounting portion 301, that is, the maximum width of the mounting portion 301 along the width direction of the avoidance opening 20 is d. In this embodiment, the mounting portion 301 is in the shape of a long rod with a circular cross section, and d is roughly equal to the diameter of the mounting portion 301.

[0094] f is the magnetic force between the first magnet 41 and the second magnet 42 when the distance between the first magnet 41 and the second magnet 42 is the maximum, in N. B1 is the magnetic induction intensity of the first magnet 41, in Gs. B2 is the magnetic induction intensity of the second magnet 42, in Gs. μ0 is the vacuum permeability, μ0=4π×10 -7 A / m 2 .

[0095] S1 is the total cross-sectional area of ​​the first groove 401 in the first magnet 41, in mm 2 Exemplarily, the number of the first grooves 401 is m1, and S2 is equal to the sum of the cross-sectional areas of the m1 first grooves 401, that is, S1 represents the sum of the cross-sectional areas of the first grooves 401 dug out of the first magnet 41.

[0096] S2 is the total cross-sectional area of ​​the second groove 402 in the second magnet 42, in mm 2 Exemplarily, the number of the second grooves 402 is m2, and S2 is equal to the sum of the cross-sectional areas of m1 second grooves 402, that is, S2 represents the sum of the cross-sectional areas of the second grooves 402 dug out of the second magnet 42.

[0097] S3 is the total cross-sectional area of ​​the projection of the first groove 401 on the second magnet 42 and the second groove 402, in mm 2 In this embodiment, the projection of the first groove 401 on the second magnet 42 completely overlaps with the second groove 402, so S3 = the total cross-sectional area S1 of the first groove 401 in the first magnet 41 = the total cross-sectional area S2 of the second groove 402 in the second magnet 42. Fig.10 As shown, Fig.10 4 is a schematic diagram of a cross-sectional structure of a magnetic member 40 in some other embodiments when the first magnet 41 and the second magnet 42 are misaligned along the extension direction. Fig.10 The dotted line portion represents the second magnet 42. In some other embodiments, the projection of the first groove 401 on the second groove 402 does not completely overlap with the second groove 402. In this case, the overlapped portion 403 of the projection of the first groove 401 on the second magnet 42 and the second groove 402 is the overlapped portion, and the sum of the cross-sectional areas of the overlapped portion 403 is S3.

[0098] n is a redundant parameter, and n is 0.7 to 0.9. D is the thickness of the projection of the first magnet 41 on the second magnet 42 that overlaps with the second magnet 42 in the thickness direction, and the unit is mm. In this embodiment, the thickness of the first magnet 41 and the second magnet 42 in the thickness direction are equal, and the projection of the first magnet 41 on the second magnet 42 completely overlaps with the second magnet 42 in the thickness direction, so D = the thickness of the first magnet 41 D = the thickness of the second magnet 42 D2. Fig.11 As shown, Fig.11 4 is a schematic diagram of a cross-sectional structure when the first magnet 41 and the second magnet 42 are misaligned along the thickness direction in the magnetic member 40 of some other embodiments. Fig.11The dotted line portion represents the second magnet 42. In some other embodiments, the projection of the first magnet 41 on the second magnet 42 does not overlap with the second magnet 42 in the thickness direction. In this case, the thickness of the overlap between the projection of the first magnet 41 on the second magnet 42 and the second magnet 42 in the thickness direction is D.

[0099] Taking the case where the first magnet 41 and the second magnet 42 are completely identical, and the projection of the first magnet 41 on the second magnet 42 completely overlaps with the second magnet 42, the effective length of the magnetic member 40 along the extension direction is L=the extension length L1 of the first magnet 41. Exemplarily, when the parameter is empirically taken as k=0.75, and the cross-sectional shape of the first groove 401 is an equilateral triangle with a side length of 2 mm to 4 mm, the parameter values ​​of the first magnet 41 are shown in Table 1.

[0100] Table 1 Parameter values ​​of the first magnet 41

[0101]

[0102] The present application embodiment study found that when the thickness of the first magnet 41 and the second magnet 42 is too thin, it is easy to cause insufficient magnetic force between the first magnet 41 and the second magnet 42, which leads to the problem that the first magnet 41 and the second magnet 42 are easily separated after being fitted. When the thickness of the first magnet 41 and the second magnet 42 is too thick, the first magnet 41 and the second magnet 42 are not easy to be bent and rolled up. According to the above calculation formula and the value data of Table 1, in the present application embodiment, by controlling the thickness D1 of the first magnet 41 to satisfy 2mm≤D1≤d / 4, and the thickness D2 of the second magnet 42 to satisfy 2mm≤D2≤d / 4, the problem of insufficient magnetic force of the first magnet 41 and the second magnet 42 and difficulty in rolling up due to excessive thickness can be solved.

[0103] In addition, when the depth h1 of the first groove 401 in the first magnet 41 and the depth h2 of the second groove 402 in the second magnet 42 are too deep, the first magnet 41 and the second magnet 42 will be easily broken. When the depth h1 of the first groove 401 and the depth h2 of the second groove 402 are too shallow, the improvement effect of the winding effect of the first magnet 41 and the second magnet 42 will be small. In the embodiment of the present application, by controlling D1-h1≥1mm, D2-h2≥1mm, it can be ensured that the thickness of the thinnest part of the first magnet 41 or the second magnet 42 is not too small, thereby ensuring the magnetic force of the first magnet 41 and the second magnet 42 while avoiding the first magnet 41 and the second magnet 42 from breaking during winding.

[0104] In addition, if the width of the first magnet 41 and the second magnet 42 is too small, the service life and strength performance of the first magnet 41 and the second magnet 42 will be reduced. If the width of the first magnet 41 and the second magnet 42 is too large, unnecessary costs will be added and winding will be difficult. In the embodiment of the present application, by controlling the width Z1 of the first magnet 41 to satisfy D1 / 2≤Z1≤2D1 and the width Z2 of the second magnet 42 to satisfy D2 / 2≤Z2≤2D2, the strength of the first magnet 41 and the second magnet 42 can be ensured and winding can be facilitated.

[0105] In addition, the present invention also studies and finds that the effective length L of the magnetic member 40 along the extension direction satisfies: L ≥ (2Kd 2 +S) / nD, it is possible to ensure that there is sufficient magnetic force between the first magnet 41 and the second magnet 42, so that the avoidance opening 20 can always be closed, thereby ensuring that light does not enter from the avoidance opening 20, which is beneficial to improving the sunshade effect of the sunshade curtain device 500. The effective length of the magnetic member 40 provided in the present application is L, which satisfies the formula and can guide the setting of the first magnet 41 and the second magnet 42, which has practical application significance.

[0106] What is disclosed above is only a preferred embodiment of the present application, and it certainly cannot be used to limit the scope of rights of the present application. Ordinary technicians in this field can understand that all or part of the processes of implementing the above embodiments and equivalent changes made according to the claims of the present application are still within the scope covered by the present application.

Claims

1. A sunshade device, characterized in that: The sunshade curtain device includes a curtain body and a magnetic member, the curtain body includes a first edge and a second edge arranged opposite to each other, the curtain body is provided with a avoidance opening, the opening of the avoidance opening is arranged at the first edge, and the avoidance opening penetrates the curtain body along the thickness direction of the curtain body, the magnetic member is installed at the avoidance opening, and is used to close or open the avoidance opening.

2. The sunshade device according to claim 1, characterized in that: The avoidance opening includes a bottom wall, a first side wall and a second side wall, the bottom wall is arranged opposite to the opening of the avoidance opening and is spaced apart from the second edge, the first side wall and the second side wall are both connected to the bottom wall and are arranged opposite to each other, and the magnetic part includes a first magnet and a second magnet, the first magnet is connected to the first side wall, the second magnet is connected to the second side wall, and attracts the first magnet to each other.

3. The sunshade device according to claim 2, characterized in that: The sunshade curtain device comprises a reel, the second edge is connected to the reel, and the curtain body and the magnetic member can be wound around the reel.

4. The sunshade device according to claim 3, characterized in that: The first magnet is provided with a first groove, and the sunshade device has a retracted state. When the sunshade device is in the retracted state, the opening of the first groove faces the reel, and the first groove is recessed in a direction away from the reel; And / or, the second magnet is provided with a second groove, and when the sunshade curtain device is in the retracted state, the opening of the second groove faces the winding shaft, and the second groove is recessed in a direction away from the winding shaft.

5. The sunshade device according to claim 4, characterized in that: The thickness of the first magnet is D1, the depth of the first groove is h1, and D1-h1≥1mm; the thickness of the second magnet is D2, the depth of the second groove is h2, and D2-h2≥1mm.

6. The sunshade device according to claim 4, characterized in that: The thickness of the first magnet is D1, the width of the first magnet is Z1, and D1 / 2≤Z1≤2D1; the thickness of the second magnet is D2, the width of the first magnet is Z2, and D2 / 2≤Z2≤2D2.

7. The sunshade device according to claim 4, characterized in that: The magnetic part meets the following requirements: L≥(2Kd 2 +S) / nD, where S = S1 + S2 - S3; L is the length of the overlap between the projection of the first magnet on the second magnet and the second magnet in the extension direction, d is the farthest relative distance between the first magnet and the second magnet, f is the magnitude of the magnetic force between the first magnet and the second magnet when the farthest relative distance between the first magnet and the second magnet is reached, B1 is the magnetic induction intensity of the first magnet, B2 is the magnetic induction intensity of the second magnet, μ0 is the vacuum magnetic permeability, S1 is the total cross-sectional area of ​​the first groove, S2 is the total cross-sectional area of ​​the second groove, S3 is the total cross-sectional area of ​​the overlap between the projection of the first groove on the second magnet and the second groove, n is a redundant parameter, n is 0.7~0.9, and D is the thickness of the overlap between the projection of the first magnet on the second magnet and the second magnet in the thickness direction.

8. The sunshade device according to claim 4, characterized in that: There are a plurality of first grooves, and the plurality of first grooves are arranged at intervals along the winding direction of the first magnet; and / or there are a plurality of second grooves, and the plurality of second grooves are arranged at intervals along the winding direction of the second magnet.

9. The sunshade device according to claim 3, characterized in that: The first magnet is wound around the circumference of the reel along the extending direction of the first magnet, and the second magnet is wound around the circumference of the reel along the extending direction of the second magnet.

10. The sunshade device according to any one of claims 2 to 9, characterized in that: Along the width direction of the avoidance opening, the farthest relative distance between the first magnet and the second magnet is d, the thickness of the first magnet is D1, 2mm≤D1≤d / 4, and the thickness of the second magnet is D2, 2mm≤D2≤d / 4.

11. The sunshade device according to any one of claims 2 to 9, characterized in that: The first magnet includes a first end face, a second end face and a first side face, the first end face and the second end face are arranged opposite to each other along the extension direction of the first magnet, the first end face faces the bottom wall of the avoidance opening, and the first side face is connected between the first end face and the second end face, the second magnet includes a third end face, a fourth end face and a second side face, the third end face and the fourth end face are arranged opposite to each other along the extension direction of the second magnet, the third end face faces the bottom wall of the avoidance opening, the second side face is connected between the third end face and the fourth end face, and is arranged opposite to the first side face.

12. The sunshade device according to claim 11, characterized in that: The first magnet further includes a first transition surface, the first transition surface is connected between the first end surface and the first side surface, the second magnet further includes a third transition surface, the third transition surface is connected between the third end surface and the second side surface, and the distance between the first transition surface and the third transition surface gradually decreases along the direction from the bottom wall of the avoidance opening to the opening of the avoidance opening; And / or, the first magnet also includes a second transition surface, the second transition surface is connected between the second end surface and the first side surface, the second magnet also includes a fourth transition surface, the fourth transition surface is connected between the fourth end surface and the second side surface, and the distance between the third transition surface and the fourth transition surface gradually decreases along the direction from the opening of the avoidance to the bottom wall of the avoidance.

13. The sunshade device according to claim 11, characterized in that: The first transition surface is an arc surface, and the third transition surface is an arc surface; And / or, the second transition surface is an arc surface, and the fourth transition surface is an arc surface.

14. The sunshade device according to any one of claims 2 to 9, characterized in that: The first magnet and the second magnet are both spaced apart from the bottom wall and form an avoidance space with the bottom wall, and the avoidance space is used to avoid the part to be avoided. The sunshade device also includes an elastic cloth, which is installed in the avoidance space and is used to adjust the size of the avoidance space.

15. The sunshade device according to any one of claims 2 to 9, characterized in that: The first edge includes a first portion and a second portion, the first portion and the second portion are located at two sides of the avoidance opening, the first portion is located at a side of the first magnet facing away from the second magnet, and the second portion is located at a side of the second magnet facing away from the first magnet; The sunshade device further includes a first support body and a second support body, wherein the first support body is connected to an end of the first portion facing the first magnet, and the second support body is connected to an end of the second portion facing the second magnet.

16. The sunshade device according to any one of claims 3 to 9, characterized in that: The sunshade curtain device also includes a roller, the roller is installed on the inner side of the roller, and when the sunshade curtain device is in the rolled-up state, the curtain body and the magnetic member are both rolled up in the roller.

17. A glass assembly, characterized in that: It comprises a vehicle window glass and a sunshade curtain device as claimed in any one of claims 1 to 16, wherein the sunshade curtain device has an open state, and when the sunshade curtain device is in the open state, the projection of the curtain body on the vehicle window glass covers at least a portion of the vehicle window glass.

18. A vehicle, characterized in that: It comprises a piece to be avoided and a glass assembly as claimed in claim 17, wherein the piece to be avoided comprises a mounting portion, the mounting portion is mounted on the vehicle window glass, and when the sunshade device is in the open state, the mounting portion is inserted into the avoidance opening.

19. The vehicle according to claim 18, characterized in that The vehicle window glass is a front windshield, and the part to be avoided is an interior rearview mirror.

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