Privacy curtain device for projection curtain in automobile and automobile

Abstract

The privacy curtain device is arranged in the automobile and comprises a curtain box, a privacy curtain and an upper suspension connecting structure, the curtain box is movably installed on an automobile body, the lower side edge of the privacy curtain is connected into the curtain box, the upper side edge of the privacy curtain is provided with a lower suspension connecting structure, and the lower suspension connecting structure is connected with the privacy curtain. The lower suspension connecting structure can be connected with or disconnected from the upper suspension connecting structure, the privacy curtain can be stored in the curtain box, the curtain box can move to a retracting position or a flat working position, and the upper suspension connecting structure is arranged above the flat working position of the curtain box; when the curtain box is located at the flat working position, the upper side edge of the privacy curtain can be stretched upwards, the lower suspension connecting structure can be connected with the upper suspension connecting structure, and when the movable connecting structures are connected, the privacy curtain is unfolded and shields the open space of the side edge of the projection curtain after being unfolded.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle function systems, and particularly relates to a privacy curtain device for a projection screen in a vehicle, and a vehicle. Background Art

[0002] With the development of intelligent vehicles, the functions of vehicle-mounted systems have gradually become rich, making the vehicle more and more a means of transportation integrating traffic and entertainment. At present, most of the in-vehicle film and television uses an electronic screen, which has a small screen and a poor viewing experience. In order to improve the viewing effect, a projection screen is also provided in the vehicle in the prior art, generally arranged in front of the second-row seat for the viewing of the rear passengers. However, there will be spaces on both sides of the projection screen. Refer to the attached Figure 1 and the attached Figure 2 As shown, a triangular open space is formed between the bottom side of the vehicle roof, the left / right side edges of the projection screen, and the left / right sides inside the vehicle, making it difficult to completely separate the front and rear row passenger spaces, and the light from the front will affect the viewing experience. Currently, the mainstream solutions to the above problems mainly include the following:

[0003] 1. As much as possible, widen the projection screen to reduce the area of the triangular open space. However, due to the roof curvature and the interior curvature being lower on both sides than in the middle, and the projection screen roller being long and straight, it is not possible to simply widen it. Moreover, widening the screen will again affect the passenger viewing experience as the aspect ratio of the screen width exceeds the common width ratio (such as 16:9).

[0004] 2. Change the interior curvature of the vehicle B-pillar from the conventional one that is basically the same as the outer surface curvature of the vehicle body to a vertical shape to block the triangular area. However, when the vertical B-pillar interior is not in use, it cannot be retracted, which has a certain impact on the aesthetics of the vehicle interior. Summary of the Invention

[0005] In view of the above-mentioned disadvantages of the prior art, the technical problem to be solved by the present invention is to provide a privacy curtain device for a projection screen in a vehicle, and a vehicle, which has a simple structure and is convenient to use, and can effectively block the spaces on both sides of the vehicle-mounted projection screen and improve the viewing effect.

[0006] To achieve the above object, the present invention provides a privacy curtain device for an in-vehicle projection screen. The projection screen can be lowered and unfolded or retracted upward. After the projection screen is lowered and unfolded, there are open spaces on the left and right sides between the left and right sides of the projection screen and the vehicle body. The privacy curtain device is arranged inside the vehicle and includes a curtain box, a privacy curtain, and an upper suspension connection structure. The curtain box is movably mounted on the vehicle body. The lower side of the privacy curtain is connected to the curtain box, and the upper side is provided with a lower suspension connection structure. The lower suspension connection structure can establish or release a connection with the upper suspension connection structure. The privacy curtain can be received in the curtain box. The curtain box can move to a retracted position or a flat working position. The upper suspension connection structure is arranged above the flat working position of the curtain box. When the curtain box is in the flat working position, the upper side of the privacy curtain can be stretched upward and the lower suspension connection structure can be connected to the upper suspension connection structure. When the movable connection structure is connected to the movable connection structure, the privacy curtain is unfolded and blocks the open space on the side of the projection screen after it is lowered and unfolded.

[0007] Further, a rotatable return shaft is provided in the curtain box. The lower side of the privacy curtain is fixedly connected to the return shaft. When the return shaft rotates, it can wind up the privacy curtain.

[0008] Further, a recovery spring structure connected to the return shaft is provided in the curtain box. The recovery spring structure can apply an elastic force to the return shaft to drive the return shaft to rotate in the direction of winding up the privacy curtain.

[0009] Further, when the curtain box is in the retracted position, it is located at the B-pillar of the vehicle body.

[0010] Further, a recovery accommodation box is also provided in the vehicle body. When the curtain box moves to the retracted position, it is located in the recovery accommodation box.

[0011] Further, the curtain box is rotatably mounted on the vehicle body, and an automatic release mechanism capable of driving the curtain box to rotate from the retracted position to the flat working position is also included.

[0012] Further, the automatic release mechanism includes an automatic driving part, and the automatic driving part can automatically drive the movable curtain box to reciprocally rotate between the retracted position and the flat working position.

[0013] Further, the automatic release mechanism includes an elastic driving part and a locking part. The elastic driving part is connected to the curtain box. When the curtain box is in the retracted position, the elastic driving part is in an elastic energy storage state and provides an elastic force to drive the curtain box to rotate towards the flat working position. The locking part can lock the curtain box in the retracted position or release the lock.

[0014] Further, when the curtain box is in the flat working position, the side of the privacy curtain close to the projection screen is on the back side of the projection screen, and there is an overlapping area between the two in the width direction of the projection screen.

[0015] The present invention also provides an automobile, including a projection screen arranged inside the vehicle, and further including the above-mentioned privacy curtain device.

[0016] As described above, the privacy curtain device and the automobile according to the present invention have the following beneficial effects:

[0017] 1. Through the movable curtain box, the privacy curtain can be retracted to both sides of the vehicle body when not in use. When the projection screen is in use, the curtain box is released, and the privacy curtain is pulled out and hung on the upper suspension connection structure, so that the privacy curtain is well in the unfolded state and blocks the open space on the left and right sides of the projection screen after it is unfolded downward, thereby improving the viewing effect and the privacy of the rear passengers.

[0018] 2. By setting the automatic driving part or the elastic driving part, the curtain box can be driven to be released or retracted in a fully automatic manner, or the curtain box can be automatically and slowly released by elastic force, improving the degree of automation of use; and the curtain box can be locked in the retracted position through the locking part to avoid misoperation.

[0019] 3. By setting the rotating shaft and the recovery spring structure in the curtain box, the privacy curtain can be well unfolded and straightened, and can assist the privacy curtain to be automatically recovered into the curtain box, which is convenient and flexible to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the use of the projection screen in the existing automobile.

[0021] Figure 2 It is a schematic diagram of the use of the projection screen in the existing automobile.

[0022] Figure 3 It is a schematic structural diagram of an embodiment of the privacy curtain device of the present invention.

[0023] Figure 4 It is a schematic structural diagram of the automatic driving part of the automatic release mechanism in the present invention.

[0024] Figure 5 For Figure 3 the explosion diagram of the privacy curtain device in

[0025] Figure 6 It is a schematic diagram of the privacy curtain of the present invention being wound and retracted on the rotating shaft.

[0026] Figure 7 It is a schematic diagram of the privacy curtain of the present invention being pulled up and unfolded.

[0027] Figure 8 Schematic diagram of the privacy curtain device of the present invention in the retracted state.

[0028] Figure 9 Schematic diagram of the privacy curtain device of the present invention in the deployed working state.

[0029] Figure 10 It is Figure 9 Top view of

[0030] Figure 11 It is Figure 9 A - A cross-sectional view in

[0031] Figure 12 Schematic diagram of the privacy curtain device of the present invention in the retracted state inside the vehicle.

[0032] Figure 13 Schematic diagram of the privacy curtain device of the present invention in the deployed working state inside the vehicle.

[0033] Figure 14 Schematic diagram of the outer side of the privacy curtain of the present invention on the back side of the projection screen.

[0034] Figure 15 Schematic diagram of the outer side of the privacy curtain of the present invention on the front side of the projection screen.

[0035] Figure 16 Schematic structural diagram of another embodiment of the privacy curtain device of the present invention.

[0036] Figure 17 It is Figure 16 Exploded view of the privacy curtain device in

[0037] Figure 18 Schematic structural diagram of the elastic drive part of the automatic release mechanism in the present invention.

[0038] Explanation of the reference numerals in the drawings

[0039] 1 Projection screen

[0040] 2 Open space

[0041] 3 Curtain box

[0042] 31 Rotating shaft

[0043] 32 Rotary seat

[0044] 33 Box cover

[0045] 34 Box body

[0046] 35 Box rotating shaft

[0047] 4 Privacy curtain

[0048] 41 Support bar

[0049] 5 Lower suspension connection structure

[0050] 6 Upper suspension connection structure

[0051] 7 Recycling containment box

[0052] 8 Automatic release mechanism

[0053] 81 Motor

[0054] 82 First gear

[0055] 83 Second gear

[0056] 84 Locking block

[0057] 85 Locking buckle

[0058] 86 Release torsion spring

[0059] 87 Damper

[0060] 9 B-pillar Detailed implementation manners

[0061] The following specific embodiments illustrate the implementation manners of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification.

[0062] It should be noted that the structures, ratios, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those skilled in the art to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention. Therefore, they do not have a technical essence. Any modification of the structure, change of the proportional relationship, or adjustment of the size, without affecting the effects that the present invention can produce and the purposes that can be achieved, should still fall within the scope covered by the technical content disclosed in the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle", etc. cited in this specification are only for convenient narration and are not used to limit the scope for the implementation of the present invention. The change or adjustment of their relative relationships, without substantial change in the technical content, should also be regarded as the scope for the implementation of the present invention.

[0063] See Figures 1 to 18The present invention provides a privacy curtain device for a projection screen 1 in a car. The projection screen 1 can be lowered and unfolded or retracted upward, and the left and right sides of the projection screen 1 after being lowered and unfolded have an open space 2 with the left and right sides of the car body. The privacy curtain device is arranged in the car, including a curtain box 3, a privacy curtain 4 and an upper suspension connection structure 6. The curtain box 3 can be movably installed on the car body, for example, it can be installed at the B-pillar 9 on both sides of the car body or other suitable places. The lower side of the privacy curtain 4 is connected to the curtain box 3, and the upper side is provided with a lower suspension connection structure 5. The lower suspension connection structure The structure 5 can establish or release the connection with the upper hanging connection structure 6, the privacy curtain 4 can be stored in the curtain box 3, and the curtain box 3 can move to the retracted position or the flat working position; the upper hanging connection structure 6 is arranged above the flat working position of the curtain box 3; when the curtain box 3 is in the flat working position, the upper side edge of the privacy curtain 4 can be stretched upward and the lower hanging connection structure 5 can be connected to the upper hanging connection structure 6, and when the movable connection structure is connected to the movable connection structure, the privacy curtain 4 is unfolded and blocks the open space 2 on the side of the unfolded projection screen 1.

[0064] The main working principle of the privacy curtain device of the present invention is: when in use, a privacy curtain device is installed on the left and right sides of the projection screen 1, respectively, to block the open space 2 on the left and right sides of the projection screen 1. When the projection screen 1 is not in use, the privacy curtain device is in a retracted state, the privacy curtain 4 is stored in the curtain box 3, and the curtain box 3 is in the retracted position, see Figure 12 As shown, the recovery position of the curtain box 3 can be specifically designed according to the structure of the vehicle interior, for example, it can be stored in or close to the interior decoration on both sides of the vehicle, so as not to affect the use of the vehicle interior space as much as possible. When the projection screen 1 is used, the projection screen 1 is lowered and unfolded, and the curtain box 3 is moved to the flat working position, wherein the flat working position of the curtain box 3 can be in a horizontal or inclined state and is located on the left and right sides of the unfolded projection screen 1; then the upper side edge of the privacy curtain 4 is pulled up, and the lower hanging connection structure 5 can be connected to the upper hanging connection structure 6, so that the privacy curtain 4 is unfolded and located in the open space 2 on the side of the unfolded projection screen 1, the open space 2 is blocked, and the privacy curtain device is in the unfolded working state, see Figure 9 , Figure 11 and Figure 13 The privacy curtain device has a simple structure and is easy to use, and can effectively block the space of the vehicle-mounted projection screen 1 to ensure the viewing effect of the projection screen 1.

[0065] See also Figures 1 to 18 The present invention is further described below with specific embodiments:

[0066] See also Figure 5 , Figure 6 , Figure 7 and Figure 8, in this embodiment, as a preferred design, the main body of the curtain box 3 includes a box body 34 and a box cover 33. The box cover 33 can be fixed to the box body 34 or separated from the box body 34, which is convenient for the installation of the privacy curtain 4. An outlet is formed between the box body 34 and the box cover 33 for the privacy curtain 4 to extend out. A rotatable return shaft 31 is provided in the curtain box 3. Specifically, the return shaft 31 is installed in the box body 34 through a rotary seat 32 and rotates around its own axis through the rotary seat 32. The lower side of the privacy curtain 4 is fixedly connected to the return shaft 31. In this way, the privacy curtain 4 can be wound around the return shaft 31 by rotation, so as to recycle the privacy curtain 4 into the curtain box 3. When the privacy curtain 4 is pulled outwards, the return shaft 31 rotates to release the privacy curtain 4. Further, a recovery spring structure connected to the return shaft 31 is provided in the curtain box 3. The recovery spring structure applies an elastic moment to the return shaft 31 to drive the return shaft 31 to rotate in the direction of recovering the privacy curtain 4. The recovery spring structure includes a torsion spring installed in the rotary seat 32. When the return shaft 31 rotates forward, the privacy curtain 4 is wound and recovered. When the upper side of the privacy curtain 4 is pulled up, the return shaft 31 rotates in the reverse direction, and the elastic force of the torsion spring increases. This elastic force is used to drive the return shaft 31 to rotate forward, so as to pull down the privacy curtain 4, making the privacy curtain 4 better in a flattened state. And when the lower hanging connection structure 5 on the upper side of the privacy curtain 4 is disconnected from the upper hanging connection structure 6, under the action of the torsion spring, the return shaft 31 rotates forward, and the privacy curtain 4 can be actively recovered into the curtain box 3 step by step. In other embodiments, the return shaft 31 can be rotated in other suitable ways. In addition, the privacy curtain 4 can also be put into the curtain box 3 in a stacked form and retracted and pulled out manually.

[0067] See Figure 5 , Figure 6 , Figure 7 and Figure 8 , in this embodiment, as a preferred design, a support bar 41 is provided on the upper side of the privacy curtain 4 to support the upper side of the privacy curtain 4 so that it unfolds in the width direction. The lower side of the privacy curtain 4 unfolds in the width direction through the return shaft 31. The lower hanging connection structure 5 is installed on the support bar 41. When the privacy curtain 4 is retracted into the curtain box 3, the support bar 41 and the lower hanging connection structure 5 can be located outside the outlet of the curtain box 3. In other embodiments, multiple lower hanging connection structures 5 can also be provided on the upper side of the privacy curtain 4, and the upper side of the privacy curtain 4 is supported to unfold in the width direction by means of multi-point suspension.

[0068] See Figure 5 , Figure 6 , Figure 7 and Figure 8, in this embodiment, as a preferred design, when the curtain box 3 is in the retracted position, it is located in the interior trim at the B-pillar 9 of the vehicle body, which is more aesthetically pleasing when not in use. Further, a recovery storage box 7 is also provided in the vehicle body. The recovery storage box 7 is fixedly installed in the interior trim at the B-pillar 9 and is inclined to fit the shape of both sides of the vehicle body. When the curtain box 3 moves to the retracted position, it is located in the recovery storage box 7. In other embodiments, the recovery storage box 7 can also be provided at other suitable positions outside the B-pillar 9, which can be specifically determined according to the vehicle body structure and the position of the projection screen 1.

[0069] See Figure 3 , Figure 5 , Figure 12 and Figure 13 , in this embodiment, as a preferred design, the curtain box 3 is rotatably installed on the vehicle body. Specifically, the lower end of the box body 34 of the curtain box 3 is installed on the recovery storage box 7 through a box rotation shaft 35 and rotates around the box rotation shaft 35. The privacy curtain device further includes an automatic release mechanism 8 capable of driving the curtain box 3 to rotate from the retracted position to the flat working position. In this embodiment, the automatic release mechanism 8 adopts a fully automatic driving mode, including an automatic driving part. The automatic driving part includes a motor 81, a first gear 82, and a second gear 83. The second gear 83 is coaxially fixed with the box rotation shaft 35, and thus is fixed to the curtain box 3 and the two have the same axis of rotation. The first gear 82 meshes with the second gear 83, and the two form a reduction gear set. The motor 81 drives the first gear 82 to rotate, and the first gear 82 drives the curtain box 3 to rotate through the second gear 83, enabling it to reciprocally rotate between the retracted position and the flat working position. The motor 81 can also be directly connected to the box rotation shaft 35, or connected to the box rotation shaft 35 through a multi-stage speed reducer. In addition, the automatic driving part can also adopt other structures, using other suitable power sources and transmission components to drive the box rotation shaft 35 to rotate. Further, the automatic release mechanism 8 further includes a locking part for locking the curtain box 3 in the retracted position and being able to release the lock. The locking part includes a locking block 84 fixedly provided at the upper end of the curtain box 3 and a locking buckle 85 (which can adopt structures such as Push-Push buckle, plug lock, etc.) installed on the recovery storage box 7. The locking buckle 85 and its unlocking switch are both provided at the top of the recovery storage box 7. When the curtain box 3 rotates to the retracted position, it enters the recovery storage box 7, and the locking block 84 is inserted into the locking buckle 85 and locked, thereby ensuring the stability of the curtain box 3 in the retracted position and avoiding misoperation. When it is necessary to release the curtain box 3, first disconnect the connection between the locking block 84 and the locking buckle 85, and then drive it to rotate to the flat working position by the automatic driving part. In other embodiments, the locking part can also adopt other suitable structures as long as it can lock the position of the curtain box 3 and can release the lock.

[0070] See Figure 16 , Figure 17 and Figure 18, in another embodiment, as a preferred design, the automatic release mechanism 8 adopts a semi-automatic driving mode, including an elastic driving part and a locking part. The elastic driving part is connected to the curtain box 3. When the curtain box 3 is in the retracted position, the elastic driving part is in an elastic energy storage state and provides an elastic force to drive the curtain box 3 to rotate towards the flat working position. At this time, the curtain box 3 is locked in the retracted position through the locking part. The elastic driving part includes a release torsion spring 86 and a damper 87. The release torsion spring 86 is sleeved on the box rotation shaft 35 of the curtain box 3, and its two ends are respectively connected to the curtain box 3 and the recovery storage box 7. The damper 87 is sleeved on the box rotation shaft 35 and acts between the curtain box 3 and the recovery storage box 7. When the curtain box 3 is in the retracted position, it is locked by the locking part and will not be driven to rotate and release by the elastic driving part. At this time, the release torsion spring 86 is twisted to provide an appropriate elastic force. After unlocking the locking connection of the locking part, the elastic force of the release torsion spring 86 drives the curtain box 3 to rotate towards the flat working position. The damper 87 is used to make the rotation and deployment of the curtain box 3 smoother and more upscale. In other embodiments, the specific structure of the elastic driving part can adopt other suitable structures as long as it can drive the curtain box 3 to rotate towards the flat working position through elastic force. The retraction operation of the curtain box 3 can be completed manually by manually rotating the curtain box 3 to the retracted position in the recovery storage box 7, which is beneficial for the locking part to lock again.

[0071] In this embodiment, refer to Figure 9 and Figure 10 , as a preferred design, when the curtain box 3 is in the flat working position, the side of the privacy curtain 4 close to the projection screen 1 (denoted as the inner side of the privacy curtain 4) is on the back side of the projection screen 1 (when the projection screen 1 is normally used, generally the back faces the front of the vehicle, that is, at this time the side of the privacy curtain 4 close to the projection screen 1 is in front of the projection screen 1). The two have a certain overlapping area in the direction of the projection screen 1, so as to better play a shielding role. According to the installation position of the projection screen 1 and the position of the retracted position of the curtain box 3 on the vehicle body, the sides of the privacy curtain 4 close to both sides of the vehicle body (denoted as the outer sides of the privacy curtain 4) may be on the front side of the projection screen 1, that is, at this time the inner side of the privacy curtain 4 is inclined forward towards the vehicle, refer to Figure 15 for the shown state. The outer sides of the privacy curtain 4 may also be on the back side of the projection screen 1, that is, at this time the inner side of the privacy curtain 4 is inclined backward towards the vehicle, refer to Figure 14 for the shown state. The shape of the privacy curtain 4 can be determined according to the shape of the open space 2 on the side of the projection screen 1 after being lowered and unfolded. The outer side of the privacy curtain 4 can be set as an inclined side. After the privacy curtain 4 is unfolded, it is trapezoidal, and its outer side matches the shape of the left and right sides inside the vehicle, minimizing the gap between the two as much as possible and improving the shielding effect.

[0072] In this embodiment, refer to Figure 5 and Figure 6, as a preferred design, the lower suspension connection structure 5 includes a hook, which is connected to the support bar 41 on the upper side of the privacy curtain 4. Correspondingly, the upper suspension connection structure 6 includes a hook seat that cooperates with the hook. During operation, the hook can be manually hung on the hook seat and fixed at a suitable position on the roof. The lower side of the privacy curtain 4 is pulled down by the rotary shaft 31, thereby straightening the privacy curtain 4 and making the connection between the hook and the hook seat stable. The upper suspension connection structure 6 and the lower suspension connection structure 5 can also adopt other suitable structures, which can be not limited in the present invention as long as they can facilitate the establishment and disconnection of the connection.

[0073] The present invention also provides an automobile, which includes a projection screen 1 arranged inside the vehicle, and also includes the above-mentioned privacy curtain device. One privacy curtain device is installed on each of the left and right sides of the projection screen 1.

[0074] As can be seen from the above, the privacy curtain device and the automobile of the present invention have the following beneficial effects:

[0075] 1. Through the movable curtain box 3, the privacy curtain 4 can be retracted to both sides of the vehicle body when not in use. When the projection screen 1 is in use, the curtain box 3 is released, and the privacy curtain 4 is pulled out and hung on the upper suspension connection structure 6, so that the privacy curtain 4 is in a good unfolded state and blocks the open space 2 on both sides of the lower part of the unfolded projection screen 1, thereby improving the viewing effect and the privacy of the rear passengers.

[0076] 2. By setting an automatic driving part or an elastic driving part, the curtain box 3 can be driven to be released or retracted in a fully automatic manner, or the curtain box 3 can be automatically and slowly released by elastic force, improving the degree of automation of use; and the curtain box 3 can be locked in the retracted position through the locking part to avoid misoperation.

[0077] 3. By setting the rotary shaft 31 and the recovery spring structure in the curtain box 3, the privacy curtain 4 can be well unfolded and straightened, and can assist the privacy curtain 4 to be automatically recovered into the curtain box 3, which is convenient and flexible to use.

[0078] In summary, the present invention effectively overcomes various disadvantages in the prior art and has high industrial utilization value.

[0079] The above embodiments are only illustrative of the principles and effects of the present invention, and are not used to limit the present invention. Any person familiar with this technology can modify or change the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical ideas disclosed by the present invention should still be covered by the claims of the present invention.

Claims

1. A privacy curtain device for a projection screen in a car, wherein the projection screen (1) can be lowered and unfolded or retracted upward, and when the projection screen (1) is lowered and unfolded, the left and right sides of the projection screen (1) and the left and right sides of the car body have an open space (2), characterized in that: The privacy curtain device is arranged in a car, comprising a curtain box (3), a privacy curtain (4) and an upper suspension connection structure (6); the curtain box (3) is movably mounted on the car body, the lower side of the privacy curtain (4) is connected to the curtain box (3), and the upper side is provided with a lower suspension connection structure (5); the lower suspension connection structure (5) can establish or release the connection with the upper suspension connection structure (6); the privacy curtain (4) can be stored in the curtain box (3); the curtain box (3) can be moved to a retracted position or a flat working position; the upper suspension connection structure (6) is arranged above the flat working position of the curtain box (3); when the curtain box (3) is in the flat working position, the upper side of the privacy curtain (4) can be stretched upward and the lower suspension connection structure (5) can be connected to the upper suspension connection structure (6); and when the movable connection structure is connected to the movable connection structure, the privacy curtain (4) is unfolded and blocks the open space (2) on the side of the unfolded projection screen (1).

2. The privacy curtain device according to claim 1, characterized in that: A rotatable rotating shaft (31) is provided in the curtain box (3), and the lower side of the privacy curtain (4) is fixedly connected to the rotating shaft (31). When the rotating shaft (31) rotates, it can wrap around the privacy curtain (4).

3. The privacy curtain device according to claim 1, characterized in that: The curtain box (3) is provided with a recovery spring structure connected to the rotating shaft (31), and the recovery spring structure can exert an elastic force on the rotating shaft (31) to drive the rotating shaft (31) to rotate in the direction of recovering the privacy curtain (4).

4. The privacy curtain device according to claim 1, characterized in that: When the curtain box (3) is in the retracted position, it is located at the B-pillar (9) of the automobile body.

5. The privacy curtain device according to claim 1 or 4, characterized in that: It also comprises a recovery accommodating box (7) arranged in the vehicle body, and the curtain box (3) is located in the recovery accommodating box (7) when it moves to the retracted position.

6. The privacy curtain device according to claim 1, characterized in that: The curtain box (3) is rotatably mounted on the vehicle body and also comprises an automatic release mechanism (8) capable of driving the curtain box (3) to rotate from a retracted position to a flat working position.

7. The privacy curtain device according to claim 6, characterized in that: The automatic release mechanism (8) comprises an automatic drive unit, which can automatically drive the movable curtain box (3) to reciprocate between a retracted position and a flat working position.

8. The privacy curtain device according to claim 6, characterized in that: The automatic release mechanism (8) comprises an elastic drive part and a locking part, wherein the elastic drive part is connected to the curtain box (3), and when the curtain box (3) is in the retracted position, the elastic drive part is in an elastic energy storage state and provides an elastic force for driving the curtain box (3) to rotate toward a flat working position, and the locking part can lock the curtain box (3) in the retracted position or unlock it.

9. The privacy curtain device according to claim 1, characterized in that: When the curtain box (3) is in a flat working position, the side edge of the privacy curtain (4) close to the projection screen (1) is located on the back side of the projection screen (1), and the two have an overlapping area in the width direction of the projection screen (1).

10. An automobile, comprising a projection screen (1) arranged inside the automobile, characterized in that: It also includes the privacy curtain device as described in any one of claims 1 to 9.

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