Flip screen and car

Abstract

This application belongs to the field of screen device technology, and particularly relates to a flip screen and an automobile. The flip screen includes: a control module; a power unit including an output shaft; a screen assembly including an assembly box and a screen, the screen being mounted in a mounting slot of the assembly box, the output shaft being drivenly connected to the assembly box, and the assembly box having a storage position; an angle detection mechanism for detecting the rotation angle of the assembly box; and at least one locking mechanism, wherein the control module controls the locking mechanism to lock the assembly box when it controls the output shaft of the power unit to flip the assembly box to the storage position. The technical solution of this application solves the problem that existing flip screens, after a period of use, suffer from flipping delay or rotational play, causing the locking tongue to extend prematurely before the flip screen has reached the storage position, resulting in poor consistency and coordination between the flipping and locking processes.

Description

Technical Field

[0001] This invention belongs to the field of screen device technology, and particularly relates to a flip screen and an automobile. Background Technology

[0002] In existing technologies, flip screens have begun to be used in some application scenarios, such as flip screens installed on car roofs. When users need to use the flip screen, they flip it open, and conversely, when users get out of the car or when they do not need to use the flip screen, they flip it closed.

[0003] When a user flips the screen to close it for storage, a locking mechanism is often used to lock the screen in order to ensure that it will not flip out due to accidental external force. This keeps the screen securely locked in its stored state.

[0004] However, during the process of flipping the screen for storage and locking it using the latch mechanism, the latch may extend prematurely before the screen reaches the storage position due to a delay in flipping or a slight play in rotation after a period of use. If the flipping delay is short or the play is minimal, the prematurely extended tip of the latch will slide a short distance against the side wall of the screen before inserting into the keyhole to lock it. If the flipping delay is long or the play is significant, the prematurely extended tip of the latch will extend beyond the side wall of the screen, preventing it from flipping further into the storage position and thus failing to lock the screen. Summary of the Invention

[0005] The purpose of this invention is to provide a flip screen and a car, which aims to solve the problem that existing flip screens have a flip delay or rotation play after a period of use, which causes the locking tongue to extend prematurely before the flip screen is flipped to the storage position, resulting in poor consistency and coordination between the flipping and rotating process and the locking tongue locking process.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is: a flip screen, comprising:

[0007] Control module;

[0008] A power unit, which includes an output shaft, and a control module electrically connected to the power unit to control the rotation or stop of the output shaft;

[0009] The screen assembly includes an assembly box and a screen. The assembly box has a mounting slot, in which the screen is installed. The output shaft is connected to the assembly box drive to drive the assembly box to rotate. The assembly box has a storage position for rotation and closure.

[0010] An angle detection mechanism is electrically connected to the control module and is used to detect the rotation angle of the assembly box.

[0011] At least one locking mechanism is electrically connected to the control module. When the output shaft of its control power unit drives the assembly box to flip to the storage position, the control module controls the locking mechanism to lock the assembly box to prevent the screen assembly from coming out of the storage position.

[0012] In one embodiment, the flip screen further includes: a base for mounting on a fixed mounting surface, a power unit fixedly mounted on the base; a connecting shaft, one end of which is provided with a connecting foot, the connecting foot being fixedly connected to the side of the assembly box, the other end of which is rotatably mounted on the base, and an output shaft being drivenly connected to the connecting shaft.

[0013] In one embodiment, the output shaft and the connecting shaft are integrally formed as a stepped shaft, and the shaft diameter of the connecting shaft is larger than the shaft diameter of the output shaft.

[0014] In one embodiment, the power unit further includes a mounting housing, a motor, and a damping fitting. The mounting housing is fixedly mounted on the base, the motor is mounted on the mounting housing, and the output shaft is mounted on the mounting housing. The output shaft of the motor is drivenly connected to the output shaft. The mounting box also has an extreme position for flipping open. The damping fitting is installed between the output shaft and the mounting housing. The damping fitting is used to provide damping force to the output shaft so that the mounting box can remain suspended at any position between the retracted position and the extreme position.

[0015] In one embodiment, the flip screen device further includes a pivot positioning and limiting mechanism, which is mounted on the base and electrically connected to the control module. When the output pivot of the control power device drives the assembly box to flip, the control module controls the pivot positioning and limiting mechanism to release the output pivot, or when the output pivot of the control power device stops rotating, the control module controls the pivot positioning and limiting mechanism to brake and lock the output pivot.

[0016] In one embodiment, the angle detection mechanism includes a housing, a follower shaft, and a detection module. The housing is mounted on a base body, and the follower shaft is rotatably mounted on the housing. The follower shaft and the output shaft are located on opposite sides of the assembly box and are coaxially arranged. The detection module is mounted on the housing and is electrically connected to the control module. The detection module is used to detect the rotation angle of the follower shaft.

[0017] In one embodiment, the locking mechanism includes a housing and a locking component. The locking component includes a latch. The locking component is installed in the assembly space of the housing and the latch extends out of the housing. The housing is fixedly installed on the base and the latch is correspondingly set with the insertion port of the assembly box. When the assembly box is flipped to the storage position, the control module controls the latch to be inserted into the insertion port. When the assembly box is flipped out of the storage position, the control module controls the latch to be disengaged from the insertion port.

[0018] In one embodiment, the end of the latch facing the assembly box is provided with a guide ramp and a bearing plane. The guide ramp is connected to the bearing plane and is used to abut against the edge of the insertion port and guide the edge of the insertion port to slide to the bearing plane when the latch is inserted into the insertion port.

[0019] In one embodiment, the base is a mounting frame that encloses a receiving space, in which the screen assembly is received when it is flipped to the storage position, and the housing is mounted on the side wall of the mounting frame.

[0020] According to another aspect of the invention, an automobile is provided. Specifically, the automobile includes a flip-up screen as described above, the flip-up screen being mounted on the top of the automobile's passenger compartment.

[0021] The present invention has at least the following beneficial effects:

[0022] The flip screen provided by this invention is installed on the top of a space. A control module controls a power unit to output power, causing the assembly box to flip, allowing the screen to flip out of or into the storage position. Furthermore, while the control module controls the power unit to drive the output shaft to rotate, the control module simultaneously controls an angle detection mechanism to detect the rotation angle of the output shaft, thus knowing the screen's flip position in real time. Therefore, when the control module controls the power unit to flip the screen to the storage position, the angle detection mechanism also simultaneously detects the flip angle of the screen to the storage position. Simultaneously with the screen entering the storage position, the control module controls a locking mechanism to lock the assembly box. This ensures that the locking mechanism's locking action and the screen's flipping to the storage position are well-synchronized, preventing the locking mechanism from performing its locking action prematurely before the screen reaches the storage position. The coordination between the locking mechanism and the screen's flipping to the storage position is excellent. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the structure of a flip screen according to the present invention. Figure 1 ;

[0025] Figure 2 for Figure 1 The diagram shows the structure of the flip screen. Figure 2 ;

[0026] Figure 3 for Figure 1 The diagram shows the structure of the flip screen. Figure 3 ;

[0027] Figure 4 for Figure 1 An exploded view of the screen components, connecting shafts, and screen in the flip screen shown.

[0028] Figure 5 for Figure 1 The exploded view of the flipped screen is shown.

[0029] Figure 6 An exploded view of a power device, connecting shaft, and connecting feet used in the flip screen of the present invention;

[0030] Figure 7 This is an assembly structure diagram of an angle detection mechanism, connecting shaft, and connecting feet used in the flip screen of the present invention;

[0031] Figure 8 for Figure 8 Exploded view;

[0032] Figure 9 This is a structural diagram of a damping component used in the power unit of the flip screen of the present invention;

[0033] Figure 10 for Figure 10 A cross-sectional view of the damping component shown.

[0034] Figure 11 This is a cross-sectional view of another damping component used in the power unit of the flip screen of the present invention.

[0035] Figure 12 This is an assembly structure diagram of the rotating screen pivot positioning and limiting mechanism of the present invention;

[0036] Figure 13 This is an assembly structure diagram of the locking mechanism in the flip screen of the present invention;

[0037] Figure 14 for Figure 13 The front view of the locking mechanism is shown.

[0038] Figure 15 for Figure 14An exploded view of the locking mechanism shown;

[0039] Figure 16 for Figure 14 A cross-sectional view along the AA direction;

[0040] Figure 17 for Figure 14 Cross-sectional view along the BB direction;

[0041] Figure 18 for Figure 14 The diagram shows the structure of the locking tongue in the locking mechanism. Figure 1 ;

[0042] Figure 19 for Figure 14 The diagram shows the structure of the locking tongue in the locking mechanism. Figure 2 ;

[0043] Figure 20 This is an assembly structure diagram of another flip screen according to the present invention;

[0044] Figure 21 This is an assembly structure diagram of another flip screen according to the present invention;

[0045] Figure 22 This is an assembly structure diagram of another flip screen according to the present invention.

[0046] The following are the labeling elements in the figure:

[0047] 10. Base; 101. Bottom shell; 102. Cover shell; 20. Power unit; 21. Output shaft; 212. Connecting plate; 22. Motor; 221. Output shaft; 23. Assembly shell; 230. Assembly space; 231. Limiting groove; 232. Shell; 233. Cover; 24. Damping components; 241. Limiting protrusion; 242. Oil reservoir; 25. First transmission structure; 26. Support bearing; 30. Screen assembly; 31. Assembly box; 311. Mounting groove; 312. Insertion port; 32. Connecting foot; 40. Connecting shaft; 5. Screen; 55. First cable seal; 56. Second cable seal; 60. Locking mechanism; 61. Housing; 611. Lower housing; 612. Upper housing; 610. Assembly space; 6101. First assembly cavity; 6102. Second assembly cavity; 62. Locking assembly; 621. Locking tongue; 622. Guide slope; 623. Bearing plane; 624. Toothed strip; 625. Protrusion; 626. First guide groove; 627. Second guide groove; 63. 64. Connecting wire; 641. Stroke control structure; 642. First contact switch; 643. Second contact switch; 65. Partition plate; 651. First guide rib; 652. Second guide rib; 66. Drive mechanism; 661. Motor; 662. Transmission gear set; 70. Angle detection mechanism; 71. Housing; 710. Mounting cavity; 711. First housing; 712. Second housing; 7121. First mounting hole; 7122. Second mounting hole; 72. Follower shaft; 721. Wiring hole; 722. Follower gear 723. Wheel; 724. Follower bearing; 725. Follower damping sleeve; 73. Detection module; 74. Angle magnification structure; 100. Rotary shaft positioning and limiting mechanism; 110. Bracket; 120. Clamping motor; 130. Lead screw; 131. First thread; 132. Second thread; 140. Accommodation space; 141. First clamping piece; 142. Second clamping piece; 151. First elastic element; 152. Second elastic element; 160. Second transmission structure; 171. First fixed shaft; 172. Second fixed shaft. Detailed Implementation

[0048] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0049] In the description of this invention, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0050] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0051] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0052] The embodiments of the present invention provide the following types of flip screens: such as Figures 1 to 5 As shown, this is one type of flip screen provided in an embodiment of the present invention; as Figure 20 As shown, this is another type of flip screen provided by an embodiment of the present invention; as Figure 21 As shown, this is another type of flip screen provided by an embodiment of the present invention; as Figure 22 The image shows another type of flip screen provided in an embodiment of the present invention. This flip screen can be a television screen installed on an indoor ceiling or a television screen installed on a car roof.

[0053] In this embodiment of the invention, the provided flip screen includes a control module (not shown), a power unit 20, a screen assembly 30, an angle detection mechanism 70, and at least one locking mechanism 60. The power unit 20 and the locking mechanism 60 can be directly fixedly mounted on a mounting surface (in this case, the mounting surface can be recessed to form a space for accommodating the flip screen). Furthermore, the power unit 20 includes an output shaft 21, and the control module is electrically connected to the power unit 20 to control the rotation or stop of the output shaft 21. The screen assembly 30 includes an assembly box 31 and a screen 5. The assembly box 31 has a mounting groove 311, in which the screen 5 is mounted. The assembly box 31 has a flip-closed storage position. The output shaft 21 is driven by the assembly box 31 to flip the assembly box 31, causing it to flip into or out of the storage position. Further, the angle detection mechanism 70 is electrically connected to the control module and is used to detect the rotation angle of the assembly box 31. The locking mechanism 60 is also electrically connected to the control module. During the process of the control module controlling the output shaft 21 of the power unit 20 to drive the assembly box 31 to flip to the storage position, the control module controls the locking mechanism 60 to lock the assembly box 31 according to the rotation angle of the assembly box 31 detected by the angle detection mechanism 70, thereby preventing the screen assembly 30 from coming out of the storage position.

[0054] Using the flip screen provided by this invention, the flip screen is installed on the top of the space (i.e., installed on a fixed mounting surface). The control module controls the power unit 20 to output power to drive the assembly box 31 to flip, thereby allowing the screen 5 to flip out of or into the storage position. Furthermore, while the control module controls the power unit 20 to drive the output shaft 21 to rotate, the control module simultaneously controls the angle detection mechanism 70 to detect the rotation angle of the output shaft 21, which is also the rotation angle of the assembly box 31, thus obtaining the flip position of the screen 5 in real time. Thus, when the control module controls the power unit 20 to rotate the screen 5 to the storage position, the angle detection mechanism 70 simultaneously detects the rotation angle of the screen 5 to the storage position. As the screen 5 enters the storage position, the control module controls the locking mechanism 60 to lock the assembly box 31. This ensures that the locking operation of the locking mechanism 60 and the rotation of the screen 5 to the storage position are well synchronized, preventing the locking mechanism 60 from performing its locking operation prematurely before the screen 5 reaches the storage position. The coordination between the locking mechanism 60 and the screen 5's rotation to the storage position is excellent. By locking the assembly box 31 in the storage position through the locking mechanism 60, the screen 5 is also locked in the storage position, ensuring that the screen 5 remains in the storage position and will not rotate out of the storage position even if subjected to unexpected external forces.

[0055] The control module can be an independent controller, such as a mature MCU controller, PLC controller, or programmable microcomputer, or it can be an electric door control switch.

[0056] The flip screen also includes a base 10 and a connecting shaft 40. For example... Figures 1 to 5 As shown, this is one type of flip screen provided by an embodiment of the present invention. The base 10 is used to mount on a fixed mounting surface. In this type of flip screen, when the screen 5 is flipped to the storage position, the screen 5 is outside the fixed mounting surface. In this type of flip screen, the base 10 includes an installation space formed by the mutual sealing of a bottom shell 101 and a cover shell 102. A power unit 20 is fixedly installed in the installation space of the base 10. One end of the connecting shaft 40 is provided with a connecting foot 32, which is fixedly connected to the side of the assembly box 31. The other end of the connecting shaft 40 is rotatably mounted on the base 10, that is, the connecting shaft 40 extends into the installation space, and the output rotating shaft 21 is drivenly connected to the connecting shaft 40. In this type of flip screen, there are two connecting shafts 40, located on opposite sides of the assembly box 31, with the ends of the two connecting shafts 40 not connected to the assembly box 31 extending towards each other. Figure 4 and Figure 5 As shown, one of the connecting shafts 40 is driven to the output shaft 21 of the power unit 20, and the other connecting shaft 40 is correspondingly assembled with the angle detection mechanism 70. The angle detection mechanism 70 is also installed in the installation space. That is to say, the bottom shell 101 and the cover shell 102 of the seat 10 are located between the two connecting shafts 40.

[0057] In the flip screen of this embodiment of the invention, the output shaft 21 and the connecting shaft 40 are preferably integrally formed as a stepped shaft, and the shaft diameter of the connecting shaft 40 is larger than the shaft diameter of the output shaft 21. Correspondingly, the mounting position between the bottom shell 101 and the cover shell 102 for adapting and assembling the connecting shaft 40 and the output shaft 21 is also in a stepped form, so that the output shaft 21 and the connecting shaft 40 can be more stably rotated and assembled on the base 10.

[0058] like Figure 6As shown, the power unit 20 also includes an assembly housing 23, a motor 22, and a damping component 24. The assembly housing 23 is fixedly installed on the base 10, the motor 22 is installed on the assembly housing 23, and the output shaft 21 is installed on the assembly housing 23. The output shaft 221 of the motor 22 is driven to connect with the output shaft 21, thus making the completed power unit 20 a modular component, which is convenient for production and assembly. In addition to having a flip-closed storage position, the assembly box 31 also has a flip-open limit position. When the user no longer uses the screen 5 to watch programs, the motor 22 drives the output shaft 21 to flip the assembly box 31 to the storage position. When the user needs to use the screen 5 to watch programs, the motor 22 drives the output shaft 21 to flip the assembly box 31 from the storage position to the limit position. Furthermore, the damping component 24 is made of an elastic material and is installed between the output shaft 21 and the assembly housing 23. The damping component 24 provides damping force to the output shaft 21, allowing the assembly box 31 to remain suspended at any position between the retracted position and the extreme position. Specifically, the damping component 24 is fitted onto the output shaft 21 of the power unit 20, and the output shaft 21 and the damping component 24 are interference-fitted. Therefore, the output shaft 21 is always subjected to the damping force applied by the damping component 24 during rotation. That is, the flip-open posture of the screen 5 is different for different users; that is, the angle at which the assembly box 31 needs to be flipped open is different for different users. Therefore, the suspension position of the assembly box 31 between the retracted position and the extreme position is also different for different users. Therefore, as the motor 22 drives the assembly box 31 to flip from the retracted position to the extreme position, the damping component 24 continuously provides damping force to the output shaft 21. When the motor 22 stops working (i.e., the motor 22 stops outputting driving force), the assembly box 31 can be suspended at any position between the retracted position and the extreme position, thus adapting to the different viewing habits of different users of the screen 5. That is, when the output shaft 21 is driven by the motor 22, the driving force of the motor 22 on the output shaft 21 is greater than the damping force of the damping component 24 on the output shaft 21, so the output shaft 21 can drive the assembly box 31 to flip. When the motor 22 stops outputting driving force to the output shaft 21, the damping force applied by the damping component 24 on the output shaft 21 can keep the assembly box 31 stably stopped, so the screen can remain in the open position to display program content. In this way, the assembly box 31 can be stably stopped at any position between the extreme position of the flip-open and the storage position of the flip-closed position, so that the screen can adaptively adjust to the best viewing angle according to the user's viewing angle needs, thereby improving the user experience.

[0059] like Figure 6As shown, the power unit 20 also includes a first transmission structure 25, which is mounted on the assembly housing 23. The output shaft 221 and the output rotating shaft 21 are connected through the first transmission structure 25 to achieve speed reduction and torque amplification. The first transmission structure 25 can be a gear reducer assembled from multiple parallel gears, or a reducer assembled from a worm gear. Specifically, the assembly housing 23 includes a housing 232 and a cover 233. The housing 232 is fixedly mounted on the base 10, and the cover 233 covers the housing 232 to form an assembly space 230. Both the output shaft 221 and the output rotating shaft 21 extend into the assembly space 230, and the first transmission structure 25 is also installed in the assembly space 230. The output shaft 221 and the output rotating shaft 21 achieve speed reduction and torque amplification transmission through the first transmission structure 25. By enclosing the first transmission structure 25 in the assembly space 230, dust, debris, and other contaminants are avoided from causing contamination or motion interference to the first transmission structure 25, ensuring stable and smooth transmission between the output shaft 221, the first transmission structure 25, and the output shaft 21.

[0060] To ensure stable rotation of the output shaft 21, therefore, as Figure 6 As shown, the power unit 20 also includes a support bearing 26. The output shaft 21 is mounted on the assembly housing 23 via the support bearing 26, which centers and supports the output shaft 21 in the assembly housing 23. The support bearing 26 is located between the damping accessory 24 and the connecting plate 212.

[0061] like Figure 9 and Figure 10 As shown, the outer wall of the damping component 24 is provided with a limiting protrusion 241; as Figure 6 As shown, the mounting housing 23 is provided with a limiting groove 231. A limiting protrusion 241 is embedded in the limiting groove 231 to prevent the damping component 24 from rotating with the output shaft 21. In this way, the damping component 24 can more stably dampen the output shaft 21, preventing the screen from deflecting relative to the base 10 due to the damping component 24 rotating relative to the mounting housing 23. Furthermore, as... Figure 9 and Figure 10 As shown, the inner wall of the damping component 24 is provided with an oil reservoir 242, in which liquid lubricating oil is stored to lubricate the output shaft 21. Thus, during the rotation of the output shaft 21 relative to the damping component 24 driven by the motor 22, the shaft is lubricated, resulting in smooth rotation and reducing wear on the damping component 24. Because the output shaft 21 and the damping component 24 are interference-fitted, the damping component 24 always provides damping force to the output shaft 21. When the motor 22 stops working, the damping force keeps the output shaft stationary, thus keeping the assembly box 31 in a suspended state. Figure 9 and Figure 10As shown, a damping accessory 24 is used in the power unit 20 of the present invention. In the damping accessory 24, the oil reservoir 242 is arranged in a spiral shape on the inner wall of the damping accessory 24.

[0062] like Figure 11 As shown, another damping component 24 is used in the power unit 20 of the present invention. In this damping component 24, there is at least one oil reservoir 242, which is arranged in a ring on the inner wall of the damping component 24. Figure 9 and Figure 10 Compared to the damping component 24 shown, except for the different design of the oil reservoir 242, the rest of the structure is the same, and will not be described in detail here.

[0063] When motor 22 stops working, in order to ensure that assembly box 31 remains suspended in any position between the storage position and the extreme position, therefore, as Figure 12 As shown, the flip screen device also includes a pivot positioning and limiting mechanism 100. The pivot positioning and limiting mechanism 100 is installed on the base 10 and is electrically connected to the control module. When the output pivot 21 of the control power device 20 drives the assembly box 31 to flip, the control module controls the pivot positioning and limiting mechanism 100 to release the output pivot 21, or when the output pivot 21 of the control power device 20 stops rotating, the control module controls the pivot positioning and limiting mechanism 100 to brake and lock the output pivot 21.

[0064] like Figure 12As shown, the rotating shaft positioning and limiting mechanism 100 includes a bracket 110, a clamping motor 120, a lead screw 130, a first clamping plate 141, a second clamping plate 142, a first elastic element 151, and a second elastic element 152. The clamping motor 120 is fixedly mounted on the bracket 110, and the lead screw 130 is rotatably mounted on the bracket 110. The clamping motor 120 is connected to the lead screw 130 to transmit power to the lead screw 130. The lead screw 130 is provided with a first thread 131 and a second thread 132. The direction of rotation of the second thread 132 is opposite to that of the first thread 131. One end of the first clamping plate 141 is provided with a first threaded hole (not shown), and one end of the second clamping plate 142 is provided with a second threaded hole (not shown). The first threaded hole of the first clamping plate 141 and the second threaded hole of the second clamping plate 142 are connected. One of the second threaded holes of the first clamping piece 142 is screwed into the first thread 131, and the other of the first threaded hole of the first clamping piece 141 and the second threaded hole of the second clamping piece 142 is screwed into the second thread 132. The other end of the first clamping piece 141 and the other end of the second clamping piece 142 both extend along the same side of the radial direction of the lead screw 130. The accommodating space 140 formed between the first clamping piece 141 and the second clamping piece 142 is used to accommodate the connecting shaft 40. The first elastic member 151 applies a reset elastic force to the first clamping piece 141 screwed into the first thread 131, and the second elastic member 152 applies a reset elastic force to the second clamping piece 142 screwed into the second thread 132, so that the first clamping piece 141 and the second clamping piece 142 move closer to each other to clamp and position the connecting shaft 40.

[0065] like Figure 12 As shown, the shaft positioning and limiting mechanism 100 also includes a second transmission structure 160, which has an input end and an output end. The output shaft of the clamping motor 120 is driven and connected to the input end, and the output end is connected to the lead screw 130. During the output power process of the clamping motor 120, the second transmission structure 160 is used to reduce the speed and increase the torque of the mechanical power output by the output shaft of the clamping motor 120 and transmit it to the lead screw 130.

[0066] like Figure 12 As shown, the rotating shaft positioning and limiting mechanism 100 also includes a first fixed shaft 171 and a second fixed shaft 172. Both the first fixed shaft 171 and the second fixed shaft 172 are fixedly disposed relative to the bracket 110, and are arranged parallel to each other. Furthermore, the axes of both the first fixed shaft 171 and the second fixed shaft 172 are perpendicular to the axis of the lead screw 130. The end of the first clamping piece 141 away from the lead screw 130 is provided with a first light hole (not shown), such as... Figure 12As shown, the first aperture is rotatably mounted on the first fixed shaft 171, and the end of the second clamping piece 142 away from the lead screw 130 is provided with a second aperture (not shown). The second aperture is rotatably mounted on the second fixed shaft 172. Both the first clamping piece 141 and the second clamping piece 142 are flexible components. During the process of the first clamping piece 141 and the second clamping piece 142 opening or closing relative to each other, the first clamping piece 141 rotates around the first fixed shaft 171, and the second clamping piece 142 rotates around the second fixed shaft 172. Since the first clamping piece 141 is a flexible component, when the first threaded hole moves linearly on the first thread 131, the first clamping piece 141 undergoes a certain amount of deflection deformation (and the deformation is small, controlled within the elastic deformation range of the first clamping piece 141). Therefore, there is no motion interference between the first clamping piece 141 and the lead screw 130, and they cannot move. Similarly, the second clamping piece 142 rotates around the second fixed shaft 172. Since the second clamping piece 142 is a flexible component, when the second threaded hole moves linearly on the second thread 132, the second clamping piece 142 generates a certain amount of deflection deformation (and the deformation is small, controlled within the elastic deformation range of the second clamping piece 142). Therefore, there will be no motion interference between the second clamping piece 142 and the lead screw 130, preventing them from moving. Furthermore, the first fixed shaft 171 serves as the force fulcrum for the first clamping piece 141 to grip the connecting shaft 40, and the second fixed shaft 172 serves as the force fulcrum for the second clamping piece 142 to grip the connecting shaft 40. This allows the first clamping piece 141 and the second clamping piece 142 to stably grip the connecting shaft 40, thereby restricting the connecting shaft 40 and preventing it from rotating. This also allows the assembly box 31 to remain suspended.

[0067] like Figure 7 and Figure 8 As shown, the angle detection mechanism 70 includes a housing 71, a follower shaft 72, and a detection module 73. The housing 71 is installed in the mounting space of the base 10. The follower shaft 72 is rotatably mounted on the housing 71. The follower shaft 72 and the output shaft 21 are located on opposite sides of the assembly box 31 and are coaxially arranged. One connecting shaft 40 is drivenly connected to the output shaft 21 of the power device 20, and the other connecting shaft 40 is drivenly connected to the follower shaft 72. The detection module 73 is installed on the housing 71 and is electrically connected to the control module. The detection module 73 is used to detect the rotation angle of the follower shaft 72.

[0068] like Figure 8 As shown, the angle detection mechanism 70 also includes an angle amplification structure 74. By applying the angle amplification structure 74, the rotation angle of the follower shaft 72 is appropriately amplified, allowing the detection module 73 to more accurately detect the magnitude of the rotation angle of the follower shaft 72. Specifically, as shown... Figure 8As shown, a follower gear 722 is fixedly mounted at the end of the follower shaft 72. The angle amplification structure 74 includes an amplification gear. The follower gear 722 meshes with the amplification gear, and the transmission ratio i between the follower gear 722 and the amplification gear is greater than 1. The detection module 73 and the amplification gear are arranged opposite each other. During the rotation of the follower shaft 72, the amplification gear rotates synchronously with the follower gear 722. The amplification gear amplifies the rotation angle of the follower shaft 72. Thus, the detection module 73 detects the amplification gear and then converts the data to obtain the magnitude of the rotation angle of the follower shaft 72.

[0069] In this embodiment of the invention, the detection module 73 is a Hall sensor. Hall sensors have high detection accuracy and low procurement cost, which helps to reduce the production cost of the flip screen.

[0070] like Figure 8 As shown, the follower shaft 72 has a wiring hole 721 extending along its axis. The wiring hole 721 is used to pass cables through so that the screen 5 and the control module can be electrically connected via cables. This saves as much space as possible occupied by cable arrangement, makes full use of structural space, and further makes the flip screen more compact.

[0071] like Figure 8 As shown, the housing 71 includes a first housing 711 and a second housing 712. The first housing 711 is fixedly installed in the mounting space of the base 10. The second housing 712 covers the first housing 711 to form a mounting cavity 710. The end of the follower shaft 72 extends into the mounting cavity 710. The detection module 73 is installed in the mounting cavity 710. The second housing 712 is provided with a first mounting hole 7121, and a wiring hole 721 is disposed opposite to the first mounting hole 7121. Furthermore, as... Figure 8 As shown, the flip screen also includes a first cable seal 55, which is installed in the first mounting hole 7121, and the cable passes through the first cable seal 55. By enclosing the detection module 73 in the mounting cavity 710, dust, moisture, and other impurities are prevented from contaminating and damaging the detection module 73. Furthermore, by setting the first cable seal 55 to seal the cable extending into the mounting cavity 710, moisture cannot seep in along the cable, ensuring the safety of the detection module 73.

[0072] Furthermore, the flip screen also includes a second cable seal 56. A second mounting hole 7122 is provided on the second housing 712. The second cable seal 56 is sealed and assembled in the second mounting hole 7122. The wires of the detection module 73 pass through the second cable seal 56 in a sealed manner and are electrically connected to the control module.

[0073] like Figure 8As shown, the follower shaft 72 is fitted with a damping accessory 24 (i.e., follower damping sleeve 724). The damping accessory 24 applies a damping force to the follower shaft 72. The output shaft 21 is also fitted with a damping accessory 24. During rotation, the output shaft 21 is constantly subjected to the damping force applied by the damping accessory 24, and the follower shaft 72 is also subjected to the corresponding damping force of the damping accessory 24. When the motor 22 drives the output shaft 21 to rotate, the driving force on the output shaft 21 is greater than the sum of the damping forces of the corresponding damping accessory 24 on the output shaft 21 and the damping forces of the damping accessory 24 on the follower shaft 72. Therefore, the output shaft 21 can drive the assembly box 31 to rotate. When the output shaft 21 is no longer subjected to a driving force, the sum of the damping forces of the corresponding damping accessory 24 on the output shaft 21 and the damping forces of the damping accessory 24 on the follower shaft 72 allows the assembly box 31 to be stably suspended. In this way, the assembly box 31 can adaptively adjust the optimal viewing angle according to the viewing angle needs of different users to meet the user's needs, rather than the user adjusting their own viewing angle to adapt to the optimal viewing angle of the screen, thus improving the user experience.

[0074] like Figure 8 As shown, the follower shaft 72 is also fitted with a follower bearing 723, which is installed in the first housing 711 to position and support the follower shaft 72, and is located between the damping accessory 24 and the mounting cavity 710. Preferably, the follower bearing 723 is a needle roller bearing, thus giving it a greater load-bearing capacity. Of course, the follower bearing 723 can also be a ball bearing.

[0075] In some embodiments of the present invention, the rotating screen provided has a base 10 as a mounting frame, such as... Figures 20 to 22 As shown, the mounting frame encloses a receiving space. When the user is no longer viewing the screen 5, the screen assembly 30 is housed in this space when flipped to the storage position. At this time, the ends of the two connecting shafts 40 that are not connected to the assembly box 31 extend away from each other. Furthermore, the housing 61 is mounted on the side wall of the mounting frame. After the mounting frame is fixedly mounted on the fixed mounting surface, the locking mechanism 60 can be well concealed between the mounting frame and the fixed mounting surface. Thus, when the user is no longer viewing the screen 5, storing it in the receiving space not only allows the screen 5 to avoid the space occupied when flipped open, making the space more open, but also effectively reduces dust accumulation on the surface of the screen 5, keeping the screen 5 surface cleaner.

[0076] like Figures 13 to 17 As shown, the locking mechanism 60 includes a housing 61 and a locking assembly 62. The locking assembly 62 includes a latch 621. The locking assembly 62 is installed in the assembly space 610 of the housing 61, and the latch 621 extends out of the housing 61. The housing 61 is fixedly installed on the mounting frame (as shown in the image). Figures 1 to 5In the shown flip screen, the locking mechanism 60 is fixedly mounted on the fixed mounting surface, and the locking tongue 621 is correspondingly set with the insertion port 312 of the assembly box 31. When the assembly box 31 is flipped to the storage position, the control module controls the locking tongue 621 to insert into the insertion port 312, and when the assembly box 31 is flipped out of the storage position, the control module controls the locking tongue 621 to disengage from the insertion port 312.

[0077] like Figure 13 , Figure 15 , Figure 16 and Figure 19 As shown, the end of the latch 621 facing the assembly box 31 is provided with a guide slope 622 and a bearing plane 623. The guide slope 622 is connected to the bearing plane 623. When the latch 621 is inserted into the insertion port 312, the guide slope 622 abuts against the edge of the insertion port 312. Then, the guide slope 622 guides the edge of the insertion port 312 to slide onto the bearing plane 623. In this way, the latch 621 and the output shaft 21 jointly support the assembly box 31, that is, the latch 621 restricts the assembly box 31 within the receiving space. Even if the assembly box 31 is accidentally subjected to external force, the assembly box 31 will not flip out of the storage position, so that the assembly box 31 can always be stably kept in the storage state.

[0078] In the locking mechanism 60 of this embodiment, the end of the latch 621 facing the assembly box 31 is provided with a stepped structure (not labeled). This stepped structure is used to stop the insertion port 312, so that the latch 621 will not extend too deeply into the insertion port 312 during the extension process. That is, when the edge of the insertion port 312 slides along the guide slope 622 to the bearing plane 623, the edge of the insertion port 312 can only continue to slide to the position of the stepped structure and be stopped by the stepped structure. Specifically, the connected guide slope 622 and bearing plane 623 are stepped surfaces extending along the extension and retraction direction of the latch 621 in the stepped structure, and the side of the bearing plane 623 away from the guide slope 622 is connected to the stepped surface extending perpendicular to the extension and retraction direction of the latch 621 in the stepped structure.

[0079] like Figures 13 to 17 As shown, the outer casing 61 includes a lower casing 611 and an upper casing 612. The upper casing 612 covers the lower casing 611 to form an assembly space 610. The locking mechanism 60 also includes a partition 65, which is installed in the assembly space 610 to divide the assembly space 610 into a first assembly cavity 6101 and a second assembly cavity 6102. Figures 15 to 17As shown, the locking assembly 62 also includes a drive mechanism 66, which is electrically connected to the control module. The drive mechanism 66 includes a motor 661 and a transmission gear set 662. The drive mechanism 66 is installed in the first assembly cavity 6101. The motor 661 is electrically connected to an external power source via a connecting line 63. The motor 661 is driven by the input end of the transmission gear set 662. The output end of the transmission gear set 662 extends through the partition 65 to the second assembly cavity 6102. The locking tongue 621 is installed in the second assembly cavity 6102, and the transmission gear set 662 is driven by the locking tongue 621. The partition 65 distributes the locking tongue 621 and the drive mechanism 66 relatively independently in two spaces, i.e., the drive mechanism 66 is installed in the first assembly cavity 6101 and the locking tongue 621 is installed in the second assembly cavity 6102. This facilitates the sliding design of the locking tongue 621, ensuring that the sliding movement of the locking tongue 621 does not interfere with the movement of the drive mechanism 66.

[0080] like Figure 18 and Figure 19 As shown, the end of the latch 621 furthest from the assembly box 31 is provided with a strip tooth 624. The teeth at the output end of the transmission gear set 662 mesh with the strip tooth 624. This ensures that the drive mechanism 66 can stably provide the power required for sliding to the latch 621, so as to drive the latch 621 to extend or retract.

[0081] like Figures 15 to 17 As shown, a first guide rib 651 is provided on the side of the partition 65 facing the second assembly cavity 6102, and the extending direction of the first guide rib 651 is parallel to the sliding direction of the latch 621. Figure 19 As shown, the latch 621 has a first guide groove 626 on the side facing the partition 65. The first guide rib 651 is slidably mounted in the first guide groove 626. The first guide rib 651, in conjunction with the first guide groove 626, guides the sliding of the latch 621, ensuring that the latch 621 can slide stably during the sliding insertion into or out of the insertion port 312, preventing the latch 621 from shifting or jamming during the sliding process.

[0082] Furthermore, the upper shell 612 has a second guide rib 652 on the side facing the second assembly cavity 6102, and the extension direction of the second guide rib 652 is parallel to the sliding direction of the latch 621. The latch 621 has a second guide groove 627 on the side facing the upper shell 612, such as... Figure 18 and Figure 19 As shown, the second guide rib 652 is slidably mounted on the second guide groove 627. The second guide rib 652, in conjunction with the second guide groove 627, guides the sliding of the locking tongue 621, ensuring that the locking tongue 621 can slide stably during the process of sliding into or out of the insertion port 312, and preventing the locking tongue 621 from deviating or becoming stuck during the sliding process.

[0083] like Figure 15 As shown, the locking mechanism 60 also includes a stroke control structure 64, which is electrically connected to the control module. Specifically, as... Figure 15 As shown, the stroke control structure 64 includes a first contact switch 641 and a second contact switch 642 spaced apart. The stroke control structure 64 is mounted in the assembly space 610, and the first contact switch 641 and the second contact switch 642 are located in the second assembly cavity 6102. Accordingly, as... Figure 15 , Figure 18 and Figure 19 As shown, the latch 621 has a protrusion 625. When the latch 621 is inserted into the insertion port 312, the protrusion 625 abuts against the first contact switch 641; when the latch 621 is disengaged from the insertion port 312, the protrusion 625 abuts against the second contact switch 642. When the assembly box 31 is flipped open, the control module controls the drive mechanism 66 to drive the latch 621 to slide out of the insertion port 312. When the latch 621 slides until the protrusion 625 abuts against the second contact switch 642, the second contact switch 642 sends a signal to the control module, and the drive mechanism 66 stops. The control module then controls the power unit 20 to operate according to this signal, causing the output shaft 21 to drive the assembly box 31 to flip open to the usable position. When the assembly box 31 is flipped and stored, the control module controls the power unit 20 to run, so that the output shaft 21 drives the assembly box 31 to flip to the storage position. Then the control module controls the power unit 20 to stop and simultaneously controls the drive mechanism 66 to move so as to drive the locking tongue 621 to slide out and insert into the insertion port 312. When the protrusion 625 abuts against the first contact switch 641, the first contact switch 641 sends a signal to the control module. The control module then closes the drive mechanism 66 according to the signal. At this time, the locking tongue 621 has been inserted into the insertion port 312.

[0084] like Figures 20 to 22 As shown, the connecting foot 32 is replaced by a flat connecting plate 212. The surface of the connecting plate 212 is parallel to the axis of the output shaft 21, and the surface of the connecting plate 212 is eccentrically positioned relative to the axis of the output shaft 21. The surface of the connecting plate 212 rests against the bottom surface of the assembly box 31, which is parallel to the surface of the screen, and the connecting plate 212 is fixedly connected to the assembly box 31. Because the surface of the connecting plate 212 is eccentrically positioned relative to the axis of the output shaft 21, and because the surface of the connecting plate 212 rests against the bottom surface of the assembly box 31, which is parallel to the surface of the screen 5, the screen 5 is mounted on the side of the assembly box 31 facing the fixed mounting surface, allowing the screen 5 to be recessed into the mounting groove of the assembly box 31 as much as possible, making the screen assembly 30 thinner.

[0085] The number of locking mechanisms 60 for the flip screen in this embodiment of the invention can be one, such as... Figure 20As shown. At this time, two connecting feet 32 ​​are located on one side of the assembly box 31, and the opposite side of the assembly box 31 away from the connecting feet 32 ​​is provided with a locking engagement part (i.e., an insertion port 312). In this way, the two connecting feet 32 ​​and a locking mechanism 60 form a triangular arrangement, which can stably support the weight of the entire screen assembly 30 and the screen 5, so that the screen assembly 30 can always be safely located in the flip-closed storage position.

[0086] Alternatively, there may be two locking mechanisms 60. Two connecting feet 32 ​​are located on one side of the assembly box 31. Each side of the assembly box 31 adjacent to the side containing the connecting feet 32 ​​has an insertion port 312. The two locking mechanisms 60 are arranged in a one-to-one correspondence with the insertion ports 312, and the two locking mechanisms 60 are symmetrically arranged with respect to the central axis of the screen 5. Figure 21 As shown. When the screen assembly 30 is flipped to the storage position, the control module instructs the two locking mechanisms 60 to connect to their respective insertion ports 312. In this way, the two locking mechanisms 60 and the two connecting shafts 40 form a quadrilateral arrangement, that is, the two locking mechanisms 60 and the two connecting shafts 40 are distributed at four points around the circumference of the assembly box 31, thus jointly bearing the weight of the entire screen assembly 30 and screen 5, ensuring that the screen assembly 30 and screen 5 are always safely in the flipped-closed position.

[0087] Furthermore, there are multiple locking mechanisms 60, which are arranged circumferentially around the assembly box 31, or evenly around the assembly box 31, such as... Figure 22 As shown, each locking mechanism 60 evenly bears the weight of the entire screen assembly 30 and screen 5.

[0088] According to another aspect of the present invention, a car is provided. Specifically, the car includes a flip-up screen as described above, which is mounted on the ceiling of the car's passenger compartment. Further, the seat 10 of the flip-up screen preferably adopts a mounting frame structure, which is fixedly mounted on the ceiling of the car's passenger compartment. In this way, rear passengers can use the flip-up screen to watch programs, and rear passengers can independently adjust the screen's opening angle according to their desired comfortable viewing angle, allowing passengers to watch programs more comfortably and freely. In this case, the control module can directly be an on-board computer (ECU), through which vehicle control is achieved.

[0089] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A flip screen, characterized in that, include: Control module; A power unit (20) includes an output shaft (21), and the control module is electrically connected to the power unit (20) to control the output shaft (21) to rotate or stop; The screen assembly (30) includes an assembly box (31) and a screen (5). The assembly box (31) is provided with a mounting slot (311). The screen (5) is installed in the mounting slot (311). The output shaft (21) is driven to the assembly box (31) to drive the assembly box (31) to flip. The assembly box (31) has a storage position for flipping and closing. An angle detection mechanism (70) is electrically connected to the control module and is used to detect the rotation angle of the output shaft (21). At least one locking mechanism (60) is electrically connected to the control module, which controls the locking mechanism (60) to lock the assembly box (31) to prevent the screen assembly (30) from coming out of the storage position when the control module controls the output shaft (21) of the power device (20) to drive the assembly box (31) to flip to the storage position. A seat (10) is used to be mounted on a fixed mounting surface, and the power unit (20) is fixedly mounted on the seat (10). A connecting shaft (40) has a connecting foot (32) at one end, which is fixedly connected to the side of the assembly box (31). The other end of the connecting shaft (40) is rotatably mounted on the base (10). The output shaft (21) is drivenly connected to the connecting shaft (40). A rotating shaft positioning and limiting mechanism (100) is installed on the base (10) and electrically connected to the control module. When the control module controls the output shaft (21) of the power device (20) to drive the assembly box (31) to rotate, the control module controls the rotating shaft positioning and limiting mechanism (100) to release the output shaft (21) or when the control module controls the output shaft (21) of the power device (20) to stop rotating, the control module controls the rotating shaft positioning and limiting mechanism (100) to brake and lock the output shaft (21). The power unit (20) further includes an assembly shell (23), a motor (22), and a damping accessory (24). The assembly shell (23) is fixedly installed on the base (10). The motor (22) is installed on the assembly shell (23). The output shaft (21) is installed on the assembly shell (23). The output shaft (221) of the motor (22) is drivenly connected to the output shaft (21). The assembly box (31) also has a limit position for flipping open. The damping accessory (24) is installed between the output shaft (21) and the assembly shell (23). The damping accessory (24) is used to provide damping force to the output shaft (21) so that the assembly box (31) can remain suspended at any position between the storage position and the limit position.

2. The flip screen according to claim 1, characterized in that, The output shaft (21) and the connecting shaft (40) are integrally formed as a stepped shaft, and the shaft diameter of the connecting shaft (40) is larger than the shaft diameter of the output shaft (21).

3. The flip screen according to claim 1 or 2, characterized in that, The angle detection mechanism (70) includes a housing (71), a follower shaft (72), and a detection module (73). The housing (71) is mounted on the base body (10). The follower shaft (72) is rotatably mounted on the housing (71). The follower shaft (72) and the output shaft (21) are located on opposite sides of the assembly box (31) and are coaxially arranged. The detection module (73) is mounted on the housing (71) and is electrically connected to the control module. The detection module (73) is used to detect the rotation angle of the follower shaft (72).

4. The flip screen according to claim 1 or 2, characterized in that, The locking mechanism (60) includes a housing (61) and a locking component (62). The locking component (62) includes a latch (621). The locking component (62) is installed in the assembly space (610) of the housing (61) and the latch (621) extends out of the housing (61). The housing (61) is fixedly installed on the base (10) and the latch (621) is correspondingly arranged with the insertion port (312) of the assembly box (31). When the assembly box (31) is flipped to the storage position, the control module controls the latch (621) to be inserted into the insertion port (312). When the assembly box (31) is flipped out of the storage position, the control module controls the latch (621) to be disengaged from the insertion port (312).

5. The flip screen according to claim 4, characterized in that, The end of the latch (621) facing the assembly box (31) is provided with a guide slope (622) and a bearing plane (623). The guide slope (622) is connected to the bearing plane (623). The guide slope (622) is used to abut against the edge of the insertion port (312) and guide the edge of the insertion port (312) to slide to the bearing plane (623) when the latch (621) is inserted into the insertion port (312).

6. The flip screen according to claim 5, characterized in that, The base (10) is a mounting frame, which encloses a receiving space. The screen assembly (30) is housed in the receiving space when it is flipped to the storage position. The outer shell (61) is mounted on the side wall of the mounting frame.

7. An automobile characterized by comprising: Includes a flip screen as described in any one of claims 1-6, wherein the flip screen is mounted on the top of the passenger compartment of the vehicle.

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