Multi-degree-of-freedom ceiling screen and vehicle

Abstract

The utility model discloses a multi-degree-of-freedom ceiling screen and a vehicle, and the ceiling screen comprises a shell which comprises a base and an upper cover covering the base; the rotating mechanism is arranged in the shell and comprises a first motor arranged on the base and a rotating shaft coaxially connected with an output shaft of the first motor, the rotating mechanism further comprises a second motor fixed to the rotating shaft, an output shaft of the second motor is perpendicular to the rotating shaft, and the output shaft of the second motor extends towards one side of the upper cover, penetrates through the upper cover and extends out of the shell; the screen is arranged on the outer side of the upper cover, and the screen is fixedly connected with an output shaft of the second motor; the sensor is arranged on the side, provided with the screen, of the shell and used for detecting the overturning position of the screen driven by the first motor, and the second motor can act after the screen is overturned in place. The angle of the screen can be freely adjusted according to the position and comfort of the passenger, so that the screen directly faces the passenger, a better viewing angle is obtained, and the viewing experience is improved.

Description

Technical Field

[0001] This application relates to the field of vehicle-mounted ceiling screen technology, and in particular to a multi-degree-of-freedom ceiling screen and a vehicle. Background Technology

[0002] A car ceiling-mounted screen is a multimedia display device installed on the roof of a car, primarily used to provide entertainment and information services for rear passengers. Currently, most car ceiling-mounted screens on the market only use a foldable design. For rear passengers, traditional car ceiling-mounted screens are fixed to the roof, limiting their viewing angle, especially for passengers of different heights and sitting postures, who may need to constantly adjust their positions to achieve a better viewing experience.

[0003] Therefore, in view of the above-mentioned technical problems, how to freely adjust the screen angle to obtain a better viewing experience is a technical problem that needs to be solved by those skilled in the art. Utility Model Content

[0004] The purpose of this application is to provide a multi-degree-of-freedom ceiling-mounted screen and vehicle, which can freely adjust the angle of the screen according to the passenger's position and comfort, so that the screen faces the passenger directly, thereby obtaining a better viewing angle and improving the viewing experience.

[0005] To achieve the above objectives, this application provides a multi-degree-of-freedom ceiling-mounted screen, comprising:

[0006] The housing includes a base and a top cover that fits onto the base;

[0007] The rotating mechanism, located inside the housing, includes a first motor mounted on the base and a rotating shaft coaxially connected to the output shaft of the first motor. It also includes a second motor fixed on the rotating shaft. The output shaft of the second motor is perpendicular to the rotating shaft and extends toward the upper cover, passing through the upper cover and extending out of the housing.

[0008] A screen is located on the outside of the upper cover, and the screen is fixedly connected to the output shaft of the second motor.

[0009] A sensor is located on the side of the housing where the screen is located, for detecting the flip position of the screen after it is driven by the first motor, and for enabling the second motor to operate after the screen is flipped into position.

[0010] Preferably, there are two first motors, which are located on both sides of the rotating shaft. Support columns supporting the first motors are provided on the bottom surface of the base, and support ribs for axially limiting the two first motors are provided on the left and right side walls of the base.

[0011] Preferably, the rotating shaft includes a large-diameter section and small-diameter sections located at both ends of the large-diameter section, the output shaft of the first motor is interference-fitted with the small-diameter section, and the large-diameter section is spaced apart from the base and the top cover.

[0012] Preferably, the bottom surface of the base is provided with a limiting support column, the limiting support column is provided with a supporting arc surface adapted to the lower cylindrical surface of the outer periphery of the small diameter section, the upper cover is provided with a limiting block that is snapped into both ends of the axial direction of the large diameter section, and the limiting block is provided with another supporting arc surface adapted to the upper cylindrical surface of the outer periphery of the small diameter section.

[0013] Preferably, the first motor and the second motor are worm gear motors.

[0014] Preferably, the upper cover has buckles on both sides, and the base has slots that fit the buckles. The upper cover and the base are detachably connected by the buckles and the slots.

[0015] Preferably, the sensor is a photoelectric sensor, with the transmitting end and receiving end of the photoelectric sensor located on both sides of the screen. After the screen is flipped into position, the light source between the transmitting end and the receiving end of the photoelectric sensor is blocked by the screen.

[0016] Preferably, the rotating shaft is hollow, the second motor is fixed inside the rotating shaft by bolts, and the output shaft of the second motor passes through the outer wall of the rotating shaft.

[0017] A vehicle comprising the aforementioned multi-degree-of-freedom ceiling-mounted screen.

[0018] Compared to the aforementioned background technology, this application utilizes a first motor and a rotating shaft to ensure the screen's folding and rotation in the front-to-back direction, and a second motor to rotate the screen in the left-to-right direction, thereby achieving multi-degree-of-freedom rotation of the screen in the front-to-back, left-to-right, and right-to-right directions. Compared to the single folding form of traditional in-vehicle screens, this multi-degree-of-freedom ceiling-mounted screen with added rotation function can quickly adjust the screen angle according to different usage scenarios and needs, ensuring that passengers in different positions can clearly see the screen content, better meeting the needs of multiple viewers and enhancing in-vehicle entertainment interactivity. Simultaneously, to ensure that the left-to-right rotation is not interfered with, a sensor is designed. Only after the screen is first flipped in the front-to-back direction to the sensor's detection position will the left-to-right rotation not interfere with the top cover, thus ensuring stable and reliable left-to-right rotation of the screen. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, 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 embodiments of this application. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0020] Figure 1 This is an exploded view of a multi-degree-of-freedom ceiling screen provided in an embodiment of this application;

[0021] Figure 2 This is a schematic diagram of the rotating mechanism structure provided in the embodiments of this application;

[0022] Figure 3 This is a schematic diagram of the rotating mechanism and base mounting structure provided in the embodiments of this application;

[0023] Figure 4 This is a schematic diagram of the rotating mechanism, base, and top cover mounting structure provided in the embodiments of this application.

[0024] Figure 5 This is a partial cross-sectional view of a multi-degree-of-freedom ceiling screen provided in an embodiment of this application;

[0025] Figure 6 This is a side view of a multi-degree-of-freedom ceiling screen provided in an embodiment of this application.

[0026] In the diagram: 1-Base; 2-First motor; 3-Rotating shaft; 4-Second motor; 5-Top cover; 6-Bolt; 7-Screen; 8-Sensor;

[0027] 11-Limiting column; 12-Support column; 13-Support rib; 31-Large diameter section; 32-Small diameter section; 51-Limiting block. Detailed Implementation

[0028] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0029] It should be noted that in this embodiment, the orientation or positional relationship indicated by terms such as "upper," "lower," "front," and "rear" is based on the orientation or positional relationship shown in the accompanying drawings. It is used only for the convenience of describing this application and for simplifying the description, and does 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, it should not be construed as a limitation of this application. Furthermore, "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0030] To enable those skilled in the art to better understand the present application, the present application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0031] like Figure 1 As shown, in this embodiment, a multi-degree-of-freedom ceiling-mounted screen is provided, including a housing, a rotating mechanism, a screen 7, and a sensor 8. The housing includes a base 1 and an upper cover 5 that fits onto the base 1. The base 1 can be fixedly connected to the roof of a vehicle. The rotating mechanism is located inside the housing, specifically between the base 1 and the upper cover 5. The rotating mechanism includes a first motor 2 mounted on the base 1, and the output shaft of the first motor 2 is coaxially connected to a rotating shaft 3. The first motor 2 can drive the rotating shaft 3 to rotate. The rotating mechanism also includes a second motor 4. Please refer to... Figure 2 The output shaft of the second motor 4 is perpendicular to the rotating shaft 3, and the output shaft of the second motor 4 extends toward the upper cover 5 and passes through the upper cover 5 to extend out of the housing.

[0032] It should be noted that since the second motor 4 will rotate with the rotating shaft 3, the upper cover 5 needs to be reserved on the second motor 4 to allow the output shaft of the second motor 4 to rotate with the rotating shaft 3, so as to avoid interference between the output shaft of the second motor 4 and the upper cover 5 during the rotation of the rotating shaft 3.

[0033] The screen 7 is located on the outside of the upper cover 5 and is fixedly connected to the output shaft of the second motor 4. The output shaft of the second motor 4 drives the screen 7 to rotate left and right, and the first motor 2 and the rotating shaft 3 drive the screen 7 to flip and fold back and forth. This ceiling screen has both the traditional forward and backward folding form and the multi-degree-of-freedom adjustment form of left and right rotation. The angle of the screen 7 can be quickly adjusted so that passengers in different positions can clearly see the content of the screen 7, better meet the needs of multiple people watching, and enhance the in-vehicle entertainment and interactivity.

[0034] In addition, sensor 8 can be located on the side of the housing where screen 7 is located, please refer to... Figure 1 and Figure 61. To prevent the multi-degree-of-freedom ceiling screen from rotating at any angle, which could cause the screen 7 to collide with the top cover 5 at low angles, a sensor 8 is added. The sensor 8 can detect the flip position of the screen 7 after it is driven by the first motor 2, and is used to determine whether the screen 7 has rotated to a safe position. Only when the screen 7 has flipped to a safe position can it be driven by the second motor 4 to rotate left and right, so as to avoid interference between the screen 7 and the top cover 5.

[0035] In summary, this application utilizes the first motor 2 and the rotating shaft 3 to ensure the folding and rotation of the screen 7 in the front-back direction, and the second motor 4 to rotate the screen 7 in the left-right direction, thereby achieving multi-degree-of-freedom rotation of the screen 7 in the front-back, left-right, and right-right directions. Compared to the single folding form of traditional in-vehicle screens, the multi-degree-of-freedom ceiling-mounted screen with added rotation function can quickly adjust the angle of the screen 7 according to different usage scenarios and needs, ensuring that passengers in different positions can clearly see the content of the screen 7, better meeting the needs of multiple viewers, and enhancing the in-vehicle entertainment interactivity. Simultaneously, to ensure that the left-right rotation is not interfered with, a sensor 8 is designed. Only after the screen is first flipped in the front-back direction to the detection position of the sensor 8 will the left-right rotation of the screen 7 not interfere with the upper cover 5, thus ensuring stable and reliable left-right rotation of the screen 7.

[0036] In some embodiments, the number of first motors 2 can be two; please refer to [reference needed]. Figure 2 Two first motors 2 are located on both sides of the rotating shaft 3, and the two first motors 2 can operate synchronously, thereby providing stable and reliable power to the rotating shaft 3.

[0037] Please refer to Figure 3 A support column 12 supporting the first motor 2 is provided on the bottom surface of the base 1, and support ribs 13 for axially limiting the two first motors 2 are provided on the left and right side walls of the base 1, thereby limiting and fixing the entire rotating mechanism left and right. In addition, the rotating shaft 3 includes a large-diameter section 31 and small-diameter sections 32 located at both ends of the large-diameter section 31. Figure 2 and Figure 3 The output shaft of the first motor 2 is interference-fitted with the small diameter section 32 to ensure the stability of the connection between the output shaft of the first motor 2 and the rotating shaft 3. The large diameter section 31 is spaced apart from the base 1 and the top cover 5 to ensure that the transmission friction generated by the rotating shaft 3 is low and has a stable rotation effect.

[0038] In addition, a limiting support column 11 is provided on the bottom surface of the base 1. The limiting support column 11 has a supporting arc surface that matches the lower cylindrical surface of the outer periphery of the small diameter section 32. Please refer to Figure 4 and Figure 5The upper cover 5 is provided with limiting blocks 51 that engage with both ends of the axial direction of the large-diameter section 31. The limiting blocks 51 also have another supporting arc surface that matches the upper cylindrical surface of the outer periphery of the small-diameter section 32. Through the limiting support column 11 and the supporting arc surface on the limiting blocks 51, the radial direction of the rotating shaft 3 is limited. This, combined with the aforementioned axial limitation, achieves limiting of the rotating mechanism in the x, y, and z directions, ensuring the rotational stability of the rotating mechanism. Of course, the supporting arc surface and the small-diameter section 32 are in a relatively sliding relationship, which does not affect the normal rotation of the rotating shaft 3.

[0039] The first motor 2 and the second motor 4 can be worm gear motors. Traditional mechanical hinge mechanisms are not durable and will loosen over time. Therefore, this embodiment uses worm gear motors for transmission to ensure accuracy and lifespan.

[0040] The upper cover 5 has buckles on both sides, and the base 1 has slots that fit the buckles. The upper cover 5 and the base 1 are detachably connected by the buckles and slots, which facilitates maintenance of the rotating mechanism. The specific design of the buckles and slots will not be described here, but can be found in existing technology.

[0041] The aforementioned sensor 8 can be a photoelectric sensor, with its transmitter and receiver located on opposite sides of screen 7, as shown in the reference diagram. Figure 6 After the screen 7 is flipped into position, that is, when the screen 7 rotates left and right, it will not interfere with the top cover 5. At this time, the light source between the transmitter and receiver of the photoelectric sensor is blocked by the screen 7. The signal of the photoelectric sensor is fed back to the second motor 4, indicating that the second motor 4 can be driven at this time.

[0042] Furthermore, the rotating shaft 3 can be hollow, and the second motor 4 can be fixed to the inside of the rotating shaft 3 by bolts 6. In this case, the output shaft of the second motor 4 can pass through the outer wall of the rotating shaft 3 and thus extend outside the housing. This method allows the rotation center of the screen 7 to coincide with the rotation center of the rotating shaft 3, avoiding the rotation path of the screen 7 occupying too much external space and affecting the overall layout of the ceiling-mounted screen.

[0043] This application also provides a vehicle that includes the aforementioned multi-degree-of-freedom ceiling screen. Therefore, the ceiling screen of this vehicle adds a rotation function on the basis of the original front and rear folding method, thereby expanding the entertainment of the in-vehicle ceiling screen and the experience of rear passengers.

[0044] It should be noted that in this specification, relational terms such as first and second are used only to distinguish one entity from several other entities, and do not necessarily require or imply any such actual relationship or order between these entities.

[0045] This document uses specific examples to illustrate the principles and implementation methods of this application. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core ideas of this application. It should be noted that those skilled in the art can make several improvements and modifications to this application without departing from the principles of this application, and these improvements and modifications also fall within the protection scope of the claims of this application.

Claims

1. A multi-degree-of-freedom ceiling-mounted screen, characterized in that, include: The housing includes a base (1) and a top cover (5) that covers the base (1); The rotating mechanism, located inside the housing, includes a first motor (2) mounted on the base (1) and a rotating shaft (3) coaxially connected to the output shaft of the first motor (2). It also includes a second motor (4) fixed on the rotating shaft (3). The output shaft of the second motor (4) is perpendicular to the rotating shaft (3), and the output shaft of the second motor (4) extends toward the upper cover (5) and passes through the upper cover (5) to extend outside the housing. The screen (7) is located on the outside of the upper cover (5), and the screen (7) is fixedly connected to the output shaft of the second motor (4); The sensor (8) is located on the side of the housing with the screen (7) and is used to detect the flip position of the screen (7) after it is driven by the first motor (2), and the second motor (4) can be activated after the screen (7) is flipped into place.

2. The multi-degree-of-freedom ceiling-mounted screen according to claim 1, characterized in that, There are two first motors (2), and the two first motors (2) are located on both sides of the rotating shaft (3). A support column (12) supporting the first motors (2) is provided on the bottom surface of the base (1). Support ribs (13) for axially limiting the two first motors (2) are provided on the left and right side walls of the base (1).

3. The multi-degree-of-freedom ceiling-mounted screen according to claim 2, characterized in that, The rotating shaft (3) includes a large diameter section (31) and small diameter sections (32) located at both ends of the large diameter section (31). The output shaft of the first motor (2) is interference-fitted with the small diameter section (32). The large diameter section (31) is spaced apart from the base (1) and the top cover (5).

4. The multi-degree-of-freedom ceiling-mounted screen according to claim 3, characterized in that, The base (1) has a limiting support column (11) on its bottom surface. The limiting support column (11) has a supporting arc surface that is adapted to the lower cylindrical surface of the outer periphery of the small diameter section (32). The upper cover (5) has a limiting block (51) that is snapped into both ends of the axial direction of the large diameter section (31). The limiting block (51) has another supporting arc surface that is adapted to the upper cylindrical surface of the outer periphery of the small diameter section (32).

5. The multi-degree-of-freedom ceiling-mounted screen according to claim 1, characterized in that, The first motor (2) and the second motor (4) are worm gear motors.

6. The multi-degree-of-freedom ceiling-mounted screen according to claim 1, characterized in that, The upper cover (5) has buckles on both sides, and the base (1) has a slot that matches the buckles. The upper cover (5) and the base (1) are detachably connected by the buckles and the slots.

7. The multi-degree-of-freedom ceiling-mounted screen according to claim 1, characterized in that, The sensor (8) is a photoelectric sensor. The transmitting end and receiving end of the photoelectric sensor are located on both sides of the screen (7). After the screen (7) is flipped into place, the light source between the transmitting end and the receiving end of the photoelectric sensor is blocked by the screen (7).

8. The multi-degree-of-freedom ceiling-mounted screen according to claim 1, characterized in that, The rotating shaft (3) is hollow, and the second motor (4) is fixed inside the rotating shaft (3) by bolts (6), and the output shaft of the second motor (4) passes through the outer wall of the rotating shaft (3).

9. A vehicle, characterized in that, Including the multi-degree-of-freedom ceiling screen as described in any one of claims 1-8.

Images