Driving mechanism, display device, vehicle, and control method for driving mechanism

Abstract

The application relates to a driving mechanism, a display device, a vehicle and a control method of the driving mechanism, comprising: a transmission mechanism used for connecting a display screen, the transmission mechanism having a translation state and a rotation state; and a switching mechanism connected with the transmission mechanism, the switching mechanism being used for switching the transmission mechanism between the translation state and the rotation state. Through the technical scheme, in the application scene of the vehicle, when the display screen is switched between a horizontal screen and a vertical screen, the translation of the display screen is realized through the driving mechanism, so that when the vertical screen shields or interferes with part of the structure of the vehicle, the display screen can be translated, so that the vertical screen no longer shields or interferes with part of the structure of the vehicle.

Description

Technical Field

[0001] This application relates to the field of vehicle technology, and in particular to a control method for a drive mechanism, a display device, a vehicle, and a drive mechanism. Background Technology

[0002] With the continuous development of automotive entertainment and intelligence, various infotainment systems are gradually being integrated into vehicles. The functions and structures of in-vehicle infotainment systems are becoming increasingly rich. As the interactive window of the in-vehicle infotainment system, the in-vehicle central control screen is also developing towards multi-functionality, larger size, and greater flexibility. Currently, most in-vehicle central control screens are arranged in a horizontal format, and some models can freely switch between horizontal and vertical screen modes to adapt to the information display needs of different applications and scenarios.

[0003] However, in related technologies, when switching from landscape to portrait mode, the portrait mode may interfere with or obscure part of the vehicle's structure, resulting in poor performance of that part of the structure. For example, when switching from landscape to portrait mode, the portrait mode may block the air vents of the air conditioner, resulting in poor airflow from the air conditioner. Summary of the Invention

[0004] This application provides a control method for a drive mechanism, a display device, a vehicle, and a drive mechanism, to at least partially solve the above-mentioned technical problems.

[0005] To achieve the above objectives, according to a first aspect of this application, a driving mechanism is provided for driving a display screen, the driving mechanism comprising:

[0006] A transmission mechanism for connecting the display screen, the transmission mechanism having a translational state and a rotational state;

[0007] A switching mechanism is connected to the transmission mechanism, and the switching mechanism is used to switch the transmission mechanism between a translational state and a rotational state.

[0008] According to a second aspect of this application, a display device is also provided, including the aforementioned driving mechanism and a display screen, wherein the display screen is connected to the driving mechanism, and when the driving mechanism is in a translational state, the driving mechanism can drive the display screen to translate; and when the driving mechanism is in a rotational state, the driving mechanism can drive the display screen to rotate.

[0009] According to a third aspect of this application, a vehicle is also provided, including the aforementioned drive mechanism or the aforementioned display device.

[0010] According to a fourth aspect of this application, a control method for a drive mechanism is also provided, applied to the aforementioned vehicle, the control method comprising:

[0011] When the display screen is in portrait mode, the display screen is controlled to move horizontally along the height direction of the vehicle to a preset position. In portrait mode, the width direction of the display screen is consistent with the width direction of the vehicle.

[0012] Control the display screen to rotate to a landscape mode, wherein in the landscape mode, the length direction of the display screen is consistent with the width direction of the vehicle.

[0013] According to a fifth aspect of this application, a control method for a drive mechanism is also provided, applied to the aforementioned vehicle, the control method comprising:

[0014] When the display screen is in portrait mode, it is controlled to rotate to landscape mode. In portrait mode, the width direction of the display screen is consistent with the width direction of the vehicle; in landscape mode, the length direction of the display screen is consistent with the width direction of the vehicle.

[0015] When the display screen is in landscape mode, control the display screen to move along the width of the vehicle to a preset position.

[0016] According to a sixth aspect of this application, a control method for a drive mechanism is also provided, applied to the aforementioned vehicle, the control method comprising:

[0017] When the display screen is in landscape mode, it is controlled to rotate to portrait mode. In portrait mode, the width direction of the display screen is consistent with the width direction of the vehicle; in landscape mode, the length direction of the display screen is consistent with the width direction of the vehicle.

[0018] When the display screen is in portrait mode, control the display screen to move horizontally along the height direction of the vehicle to a preset position.

[0019] According to a seventh aspect of this application, a control method for a drive mechanism is also provided, applied to the aforementioned vehicle, the control method comprising:

[0020] When the display screen is in landscape mode, it is controlled to move along the width direction of the vehicle to a preset position, wherein the length direction of the display screen is consistent with the width direction of the vehicle in landscape mode.

[0021] Control the display screen to rotate to portrait mode, wherein in portrait mode, the width direction of the display screen is consistent with the width direction of the vehicle.

[0022] In the drive mechanism of this application embodiment, the transmission mechanism has a translational state and a rotational state. A switching mechanism allows the transmission mechanism to switch between these two states. The transmission mechanism is used to connect to the display screen, thus further driving the display screen to translate or rotate. In vehicle applications, when the display screen switches between landscape and portrait modes, the portrait mode can easily obstruct or interfere with parts of the vehicle's structure. Since the vehicle is equipped with the drive mechanism of this application, translation within the display screen can be achieved through this mechanism. Thus, when the portrait mode obstructs or interferes with parts of the vehicle's structure, the display screen can be translated so that it no longer obstructs or interferes with these parts. For example, when switching from landscape to portrait mode, the portrait mode might obstruct the air conditioning vents. In this case, the display screen can be translated towards the roof of the vehicle so that it no longer obstructs the air conditioning vents, thereby improving the air conditioning's airflow.

[0023] Other features and advantages of this application will be described in detail in the following detailed description section. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings, wherein the same reference numerals in the following description denote the same parts.

[0026] Figure 1 This is a schematic diagram of the overall structure of the drive mechanism and display screen provided in the exemplary embodiments of this disclosure;

[0027] Figure 2 yes Figure 1 Exploded view;

[0028] Figure 3 yes Figure 1 Schematic diagram of the transmission structure;

[0029] Figure 4 yes Figure 3 Side view;

[0030] Figure 5 yes Figure 3 Top view;

[0031] Figure 6 yes Figure 1 Schematic diagram of the middle limit component;

[0032] Figure 7 yes Figure 1 A schematic diagram of the second limiting mechanism;

[0033] Figure 8 This is a first embodiment of the diagram showing the action process of the transmission mechanism when the display screen switches between landscape and portrait modes, provided in the exemplary embodiments of this disclosure;

[0034] Figure 9 This is a diagram illustrating the action process of the air outlet when the display screen switches between landscape and portrait modes in an exemplary embodiment of this disclosure.

[0035] Figure 10 This is a side view of the relative positional relationship between the display screen and the air outlet provided in an exemplary embodiment of this disclosure;

[0036] Figure 11 This is a schematic diagram showing another perspective of the relative positional relationship between the display screen and the air outlet provided in an exemplary embodiment of this disclosure;

[0037] Figure 12 This is a schematic diagram of the transmission structure in the transmission state provided in the exemplary embodiment of this disclosure;

[0038] Figure 13 This is a second embodiment of the diagram showing the action process of the transmission mechanism when the display screen switches between landscape and portrait modes, provided in the exemplary embodiments of this disclosure;

[0039] Figure 14 This is a control method for a drive mechanism provided in an exemplary embodiment of the present disclosure;

[0040] Figure 15 This is another control method for a drive mechanism provided in an exemplary embodiment of this disclosure;

[0041] Figure 16 This is another control method for a drive mechanism provided in the exemplary embodiments of this disclosure;

[0042] Figure 17 This is yet another control method for a drive mechanism provided in the exemplary embodiments of this disclosure;

[0043] Figure 18 This is a first embodiment of the control method for the drive mechanism provided in the exemplary embodiments of this disclosure;

[0044] Figure 19 This is a second embodiment of the control method for the drive mechanism provided in the exemplary embodiments of this disclosure;

[0045] Figure 20This is a third embodiment of the control method for the drive mechanism provided in the exemplary embodiments of this disclosure.

[0046] Explanation of reference numerals in the attached figures:

[0047] 10. Display screen; 12. Fixing pin; 112. Limiting screw; 30. Transmission mechanism; 31. Transmission gear; 310. First gear; 330. Second gear; 33. First rack; 300. Switching mechanism; 331. First tooth; 333. Mounting base; 35. Second rack; 351. Second tooth; 353. Mating part; 37. Limiting assembly; 371. First limiting member; 373. Guide rail; 375. Sliding member; 3531. Sliding groove; 377. First elastic member; 3711. Mounting part; 3712. Mounting block; 3713. Adjusting part; 3714. First limiting wall; 3715. 2. Limiting wall; 3716. Threaded hole; 3717. Stud; 379. Second power component; 50. Second limiting mechanism; 51. Housing; 511. Opening; 513. First receiving cavity; 515. Second receiving cavity; 53. Second limiting component; 531. Narrow end; 5311. First wall surface; 5313. Second wall surface; 5315. Third wall surface; 5317. Wedge-shaped wall surface; 533. Wide end; 55. Third limiting part; 57. Mating part; 58. Power component; 581. Electromagnetic coil; 583. Electromagnetic core; 59. Second elastic component; 70. Outer cover; 71. Receiving cavity; 2. Air damper; 3. Air outlet. Detailed Implementation

[0048] 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 a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the protection scope of this application.

[0049] According to a first aspect of this application, this disclosure provides a drive mechanism for driving a display screen, which may be an in-vehicle central control screen.

[0050] Please combine Figure 1 In some embodiments, the drive mechanism includes:

[0051] Transmission mechanism 30 is used to connect display screen 10. Transmission mechanism 30 has translational state and rotational state.

[0052] The switching mechanism 300 is connected to the transmission mechanism 30 and is used to switch the transmission mechanism 30 between a translational state and a rotational state.

[0053] In the driving mechanism of this application embodiment, the transmission mechanism has a translational state and a rotational state. A switching mechanism allows the transmission mechanism to switch between these two states. The transmission mechanism is used to connect to the display screen, thus further driving the display screen to translate or rotate. In vehicle applications, when the display screen switches between landscape and portrait modes, the portrait mode can easily obstruct or interfere with parts of the vehicle's structure. Since the vehicle is equipped with the driving mechanism of this application, the display screen can be translated within a plane. Thus, when the portrait mode obstructs or interferes with parts of the vehicle's structure, the display screen can be translated so that it no longer obstructs or interferes with the vehicle's structure. For example, when switching from landscape to portrait mode, the portrait mode might obstruct the air conditioning vents. In this case, the display screen can be translated towards the roof of the vehicle so that it no longer obstructs the air conditioning vents, thereby improving the air conditioning's airflow.

[0054] The switching mechanism 300 and the transmission mechanism 30 can be directly connected or indirectly connected by one or more adapters to achieve the function of switching the transmission mechanism 30 between translational and rotational states through the switching mechanism 300.

[0055] In some examples, when the transmission mechanism 30 is in a translational state, it can drive the display screen to move in a straight line. In other examples, when the transmission mechanism 30 is in a translational state (e.g., horizontal movement), it can drive the display screen to move along the width of the vehicle. In still other examples, when the transmission mechanism 30 is in a translational state (e.g., vertical movement), it can drive the display screen to move along the height of the vehicle.

[0056] When the transmission mechanism 30 is in a rotating state, the transmission mechanism 30 is used to drive the display screen to rotate around the normal of the display screen 10 as the central axis.

[0057] Please combine Figure 1 , 2 as well as Figure 5 In some embodiments, the transmission mechanism 30 includes a first transmission member and a second transmission member. The first transmission member is used to receive external power, and the second transmission member is used to connect to the display screen 10. The switching mechanism includes a limiting component 37. The limiting component can lock or move the first transmission member and the second transmission member relative to each other. When the first transmission member and the second transmission member are locked relative to each other, the transmission mechanism is in a rotating state. When the first transmission member and the second transmission member are moved relative to each other, the transmission mechanism is in a translating state.

[0058] In these embodiments, the limiting component 37 switches the transmission mechanism between a translational state and a rotational state. The limiting component 37 locks the first transmission member relative to the second transmission member, allowing the second transmission member to rotate with the first transmission member. This, in turn, enables the display screen to rotate. When the first transmission member is translating relative to the second transmission member, the second transmission member can then drive the display screen 10 to translate.

[0059] The second transmission component can be fixedly connected to the display screen 10.

[0060] Please combine Figure 1 and 2 In some embodiments, the first transmission component includes a transmission gear 31, and the second transmission component includes a first rack 33; the transmission gear 31 and the first rack 33 mesh; the first rack 33 is used to be fixedly connected to the display screen 10; when the transmission mechanism 30 is in a translational state, the transmission gear 31 can rotate and drive the first rack 33 to translate, so that the first rack 33 drives the display screen 10 to translate; when the transmission mechanism 30 is in a rotating state, the transmission gear 31 can drive the first rack 33 to rotate, so that the first rack 33 drives the display screen 10 to rotate.

[0061] The transmission gear 31 and the first rack 33 work together to drive the first rack 33 to translate, thereby causing the display screen 10 to translate; or the transmission gear 31 drives the first rack 33 to rotate, thereby causing the display screen 10 to rotate. The translation and rotation of the display screen 10 can be achieved through a first power component. The structure is simple, easy to implement, and low in cost. By setting a limiting component 37, the first rack 33 is locked relative to the transmission gear 31, thereby enabling the first rack 33 to rotate under the driving action of the transmission gear 31.

[0062] In these embodiments, the first rack 33 meshes with the transmission gear 31, and when the transmission gear 31 rotates, it drives the first rack 33 to move. When the first rack 33 and the transmission gear 31 work together, the rotational motion of the transmission gear 31 can be converted into the linear motion of the first rack 33. For example, when the transmission gear 31 rotates, it drives the first rack 33 meshing with it to translate.

[0063] Understandably, the transmission gear 31 is a wheel-shaped mechanical part with teeth on its edges, capable of continuous meshing to transmit motion and power. The strip 33 can be fixed to the back of the display screen 10.

[0064] Please combine Figure 1 and Figure 2 The first rack 33 and the display screen 10 can be fixedly connected, such as by welding, bonding, snap-fitting, or screwing. In this embodiment, when the first rack 33 moves, it will drive the display screen 10 to move.

[0065] For example, a fixing pin 12 can be installed on the back of the display screen, and a through hole can be opened on the first rack 33. The first rack 33 can be fixed to the back of the display screen by connecting with the fixing pin 12, and the display screen 10 moves synchronously with the first rack 33.

[0066] When the transmission mechanism 30 is in a translational state, the transmission gear 31 rotates and drives the first rack 33 to translate. In other words, when the transmission gear 31 rotates, it drives the first rack 33, which meshes with it, to translate. Since the first rack 33 is fixed to the back of the display screen 10, the first rack 33 can drive the display screen 10 to translate.

[0067] In some examples, when the transmission mechanism 30 is in a rotating state, the first rack 33 is fixed relative to the transmission gear 31, for example, the first rack 33 is locked to the transmission gear 31. In this case, when the transmission gear 31 rotates, the first rack 33 can rotate with the transmission gear 31. Since the first rack 33 is fixed to the back of the display screen 10, the first rack 33 can drive the display screen 10 to rotate with the transmission gear 31.

[0068] Please combine Figure 3 as well as Figure 4 The first rack 33 may include a first tooth 331 and a mounting base 333 connected to each other. The first tooth 331 meshes with the transmission gear 31, and the mounting base 333 is fixed to the back of the display screen 10.

[0069] Please combine Figure 2 as well as Figure 5 In some embodiments, the drive mechanism further includes a first power component, which is drivenly connected to the transmission gear 31.

[0070] Furthermore, in the drive mechanism of this application embodiment, the transmission mechanism has a translational state and a rotational state, and is driven to the transmission gear 31 of the transmission mechanism 30 through a first power member, thereby driving the transmission gear 31 to rotate.

[0071] When the transmission mechanism 30 is in a translational state, the first transmission member and the second transmission member move relative to each other, and the rotating transmission gear 31 can drive the first rack 33 to translate. At this time, the first transmission member translates relative to the second transmission member, or in other words, the first rack 33 translates relative to the transmission gear 31. Since the first rack 33 is fixed to the back of the display screen 10, the first rack 33 can drive the display screen 10 to translate.

[0072] When the transmission mechanism 30 is rotating, the first rack 33 is locked relative to the transmission gear 31; for example, the first rack 33 and the transmission gear 31 can be locked together. At this time, the rotating transmission gear 31 drives the first rack 33 to rotate, thereby causing the first rack 33 to rotate with the transmission gear 31. Since the first rack 33 is fixed to the back of the display screen 10, the first rack 33 can drive the display screen 10 to rotate with the transmission gear 31.

[0073] In the driving mechanism of this application embodiment, the translation and rotation of the display screen 10 can be realized by a first power component. The structure is simple, easy to implement, and low in cost. It can control the display screen 10 more flexibly and provide a better user experience.

[0074] The first power component can be an electric motor, such as a stepper motor or a servo motor.

[0075] Please combine Figure 1 , Figure 2 as well as Figure 5 In some embodiments, the second transmission member further includes a second rack 35 that meshes with the transmission gear 31, the second rack 35 being located on the side of the transmission gear 31 opposite to the first rack 33;

[0076] When the transmission mechanism 30 is in the translational state, the transmission gear 31 rotates to drive the first rack 33 and the second rack 35 to translate in opposite directions respectively.

[0077] When the transmission mechanism 30 switches from the translational state to the rotational state, the second rack 35 locks relative to the transmission gear 31, so that the first rack 33 locks relative to the transmission gear 31.

[0078] The cooperation between the second rack 35 and the transmission gear 31 enables the switching between the translational and rotational states of the transmission mechanism 30. A single drive mechanism can achieve both translational and rotational movement of the display screen 10. The structure is simple, easy to implement, and low in cost. The first rack 33 and the second rack 35 translate in opposite directions. The direction of movement of the display screen 10 driven by the first rack 33 is opposite to the direction of movement of the second rack 35. The first rack 33 drives the display screen 10 to translate, and the second rack 35 also translates. In other words, the second rack 35 can translate relative to the display screen 10.

[0079] Furthermore, the second rack 35 can be spaced apart from the display screen 10 to prevent interference between the second rack 35 and the display screen 10. This ensures smooth translational operation.

[0080] When the transmission mechanism 30 switches from the translational state to the rotational state, the second rack 35 is locked relative to the transmission gear 31, and the first rack 33 is locked relative to the transmission gear 31. In this way, when the transmission gear 31 rotates, the first rack 33 and the second rack 35 can rotate with the transmission gear 31.

[0081] Please combine Figure 1 as well as Figure 6 In some embodiments, the limiting component 37 is used to limit the second rack 35 so that the second rack 35 is locked relative to the transmission gear 31.

[0082] The limiting component 37 locks the second rack 35 relative to the transmission gear 31, thereby causing the second rack 35 to rotate with the transmission gear 31.

[0083] In some embodiments, the limiting component 37 includes a first limiting member 371, a guide rail 373, and a sliding member 375. The first limiting member 371 is fixed to the guide rail 373, the guide rail 373 is used to fix to the display screen 10, and the sliding member 375 is slidably connected to the guide rail 373.

[0084] When the transmission mechanism 30 is in a translational state, the second rack 35 abuts against the sliding member 375, so that the second rack 35 drives the sliding member 375 to move toward the first limiting member 371. When the sliding member 375 abuts against the first limiting member 371, the first limiting member 371 limits the second rack 35 so that the second rack 35 is locked relative to the transmission gear 31.

[0085] When the transmission mechanism 30 is in a translational state, the second rack 35 drives the sliding member 375 to move toward the direction of the first limiting member 371. When the sliding member 375 abuts against the first limiting member 371, the first rack 33 and the second rack 35 rotate with the transmission gear 31.

[0086] The guide rail 373 can be fixedly installed on the back of the display screen 10, for example, by screwing, snapping, welding, etc. In these embodiments, the guide rail 373 is fixed to the back of the display screen 10, and the slider 375 can slide relative to the guide rail 373, so that the slider 375 slides relative to the guide rail 373 and relative to the display screen 10.

[0087] The guide rail 373 can be a long strip structure extending along the length of the display screen. The slider 375 can slide along the extension direction of the guide rail 373. The slider 375 can be a block structure, such as a cube or a cuboid.

[0088] In some embodiments, the guide rail 373 is fixedly connected to the back of the display screen 10. It primarily provides guidance and support for the translational movement of the second rack 35. The second rack 35 can translate relative to the display screen 10. The slider 375 and the stud 3717, together with the guide rail 373 and the sliding groove 3531, constrain the movement of the second rack 35, allowing it to translate only along the guide rail 373. When the slider 375 moves with the second rack 35 to contact the stud 3717, the translational movement of the second rack 35 is restricted. At this point, the gear and rack meshing motion stops, and power is transmitted from the transmission gear 31 to the first rack 33. The first rack 33 then rotates with the transmission gear 31, further driving the display screen 10 to rotate. The first elastic member 377 ensures that the slider 375 remains in contact with the second rack 35, guaranteeing accurate switching of the movement mode by the mechanism.

[0089] Please combine Figure 2 In some embodiments, the second rack 35 includes a second tooth 351 and a mating part 353 connected to each other. The second tooth 351 meshes with the transmission gear 31. The mating part 353 is also provided with a sliding groove 3531. The end of the slider 375 away from the display screen 10 is located in the sliding groove 3531.

[0090] When the transmission mechanism 30 is in a translational state, the sliding member 375 moves along the sliding groove 3531 toward the direction of approaching the first limiting member 371.

[0091] Thus, when the sliding member 375 abuts against the first limiting member 371 during translation, the first rack 33 and the second rack 35 are fixed relative to the transmission gear 31. Specifically, when the sliding member 375 abuts against the first limiting member 371, the first rack 33 and the second rack 35 are fixed relative to the transmission gear 31.

[0092] In some examples, the end of the first limiting member 371 facing away from the display screen 10 is located within the sliding groove 3531. When the sliding member 375 abuts against the first limiting member 371, the first rack 33 is locked relative to the transmission gear 31. Thus, when the transmission gear 31 rotates under the drive of the first power member, the transmission gear 31 will drive the first rack 33 to rotate. The rotating first rack 33 will drive the sliding member 375 and the first limiting member 371 located in the sliding groove 3531 to rotate. The first limiting member 371 will drive the guide rail 373 and the display screen 10 to rotate, and the display screen 10 will further drive the second rack 35 to rotate.

[0093] In these examples, the first limiting member 371 can be a cuboid structure, and the sliding groove 3531 is a strip-shaped groove. The first limiting member 371 can move relative to the sliding groove 3531 along the extending direction of the sliding groove 3531. The groove wall of the sliding groove 3531 cooperates with the side wall of the first limiting member 371, so that when the sliding groove 3531 rotates, the groove wall of the sliding groove 3531 drives the first limiting member 371 to rotate.

[0094] In these embodiments, the second tooth 351 meshes with the end of the transmission gear 31 opposite to the first rack 33, thereby meshing the second rack 35 with the transmission gear 31. The second rack 35 can be positioned at the end of the transmission gear 31 opposite to the first rack 33 to facilitate meshing between the second rack 35 and the end of the transmission gear 31 opposite to the first rack 33. In this way, when the transmission gear 31 rotates, it can drive the second rack 35 to move.

[0095] The mating part 353 of the second rack 35 can be a long strip structure.

[0096] The mating part 353 is also provided with a sliding groove 3531, and the end of the slider 375 facing away from the display screen 10 is located in the sliding groove 3531; when the mating part 353 moves, it will drive the slider 375 to move on the guide rail 373. In some examples, the sliding groove 3531 has a groove wall, and when the mating part 353 moves, the groove wall of the sliding groove 3531 will drive the slider 375 to move along the guide rail 373.

[0097] When the transmission mechanism 30 is in the translational state, the transmission gear 31 rotates, converting the rotational motion of the transmission gear 31 into the linear motion of the first rack 33 and the second rack 35, which can drive the first rack 33 and the second rack 35 to translate in opposite directions.

[0098] The sliding groove 3531 of the second rack 35 can drive the slider 375 to move towards the first limiting member 371. The first rack 33 can drive the display screen to move in a straight line, and the direction of movement is opposite to the direction of movement of the slider 375. This causes the first limiting member 371 mounted on the display screen to move towards the slider 375. When the slider 375 abuts against the first limiting member 371, the slider 375 and the first limiting member 371 restrain each other and it is difficult to continue relative movement. The first limiting member 371 restricts the slider 375 from continuing to move relative to the guide rail 373 and the display screen 10. At this time, the rotation of the transmission gear 31 cannot drive the second rack 35 and the first rack 33 to translate. The first rack 33, the second rack 35 and the transmission gear 31 are relatively fixed, and the first rack 33, the second rack 35 and the transmission gear 31 are jammed. In this way, the rotating transmission gear 31 can drive the first rack 33 and the second rack 35 to rotate accordingly.

[0099] In these embodiments, the second tooth 351 meshes with the transmission gear 31, causing the second rack 35 to mesh with the transmission gear 31. When the transmission gear 31 rotates, it can drive the second rack 35 to move. When the second rack 35 and the transmission gear 31 work together, they can convert rotational motion into linear motion. For example, when the transmission gear 31 rotates, it drives the second rack 35, which meshes with it, to translate.

[0100] By cooperating with the sliding member 375 and the first limiting member 371, the first rack 33, the second rack 35 and the transmission gear 31 can be locked and driven respectively, so that the display screen 10 can be translated and rotated through a set of driving mechanisms.

[0101] The interaction between the sliding groove 3531 and the first rack 33 controls whether the rotational motion transmitted from the transmission gear 31 is converted into the rotational motion of the display screen.

[0102] Please combine Figure 6 In some embodiments, the switching mechanism 300 further includes a first elastic member 377, which abuts against the sliding member 375 and the first limiting member 371 respectively.

[0103] In some examples, the opposite ends of the first elastic member 377 can be used to connect the slider 375 and the first limiting member 371 respectively. When the sliding groove 3531 drives the slider 375 to move toward the first limiting member 371, the first elastic member 377 is compressed to press against the side wall of the sliding groove 3531.

[0104] By setting the first elastic element 377, the sliding element 375 can always abut against the sliding groove 3531. When the sliding groove 3531 drives the sliding element 375 to move towards the first limiting element 371, the first elastic element 377 is compressed, thereby abutting against the sliding groove 3531, making the movement of the control distance more precise.

[0105] The first elastic element 377 may be disposed within the sliding groove 3531 or may not be disposed within the sliding groove 3531.

[0106] In some examples, the first elastic element 377 is not disposed within the sliding groove 3531. The second rack 35 is spaced apart from the display screen 10, one end of the slider 375 is located within the sliding groove, and the first elastic element 377 may be located between the second rack 35 and the display screen 10.

[0107] In some examples, the first elastic element 377 can be a spring.

[0108] In some examples, the first limiting member 371, the first elastic member 377, and the sliding member 375 are arranged along the length of the display screen.

[0109] Please combine Figure 6 In some embodiments, the guide rail 373 extends along the length direction of the first rack 33, and the first limiting member 371 includes a mounting portion 3711 and an adjusting portion 3713 that are movably connected. The adjusting portion 3713 includes a second limiting wall 3715. The mounting portion 3711 and the second limiting wall are arranged at intervals along the length direction of the first rack. The mounting portion 3711 is mounted on the guide rail 373, and the second limiting wall is used to abut against the sliding member 375. The second limiting wall can move in a direction close to or away from the mounting portion 3711 to change the distance between the mounting portion 3711 and the second limiting wall 3715.

[0110] The guide rail 373 extends along the length direction of the first rack, and the length direction of the first rack can be consistent with the length direction of the display screen 10, that is, the guide rail 373 extends along the length direction of the display screen 10.

[0111] The adjustment part 3713 includes a second limiting wall 3715. The mounting part 3711 and the second limiting wall are arranged at intervals along the length direction of the first rack. The mounting part 3711 and the adjustment part 3713 can be arranged along the length direction of the display screen 10. In some examples, the second limiting wall 3715 may be provided on the side of the adjustment part 3713 facing the slider 375. When the slider 375 abuts against the second limiting wall 3715, the first gear drives the first rack and the second rack to rotate.

[0112] The mounting part 3711 is mounted on the guide rail 373, and the second limiting wall 3715 is used to abut against the sliding member 375. The second limiting wall 3715 can move in the direction of approaching or moving away from the mounting part 3711 to change the distance between the mounting part 3711 and the second limiting wall 3715.

[0113] In some embodiments, the mounting portion 3711 has a first limiting wall 3714 on the side facing the slider 375;

[0114] The adjustment part 3713 also includes a stud 3717, which has a second limiting wall 3715 on the side facing the slider 375. The part of the stud 3717 facing away from the slider 375 is threadedly connected to the mounting part 3711 so that the distance between the first limiting wall 3714 and the second limiting wall 3715 can be adjusted.

[0115] The mounting part 3711 has a first limiting wall 3714 on the side facing the slider 375; the distance between the first limiting wall 3714 and the second limiting wall 3715 can change the translational distance of the display screen 10, making it convenient to adjust the display screen.

[0116] The adjusting part 3713 also includes a stud 3717. The stud 3717 has a second limiting wall 3715 on the side facing the sliding member 375. The portion of the stud 3717 facing away from the sliding member 375 is threadedly connected to the mounting part 3711, allowing the distance between the first limiting wall 3714 and the second limiting wall 3715 to be adjustable. By screwing the stud 3717 to the mounting part 3711, adjusting the screwing position of the stud 3717 and the mounting part 3711 changes the distance between the first limiting wall 3714 and the second limiting wall 3715. The structure is simple and easy to operate.

[0117] Please combine translation with Figure 6 In some examples, the mounting part 3711 may include a mounting block 3712, which has a first limiting wall 3714 on the side facing the slider 375, and a threaded hole 3716 is provided on the mounting block 3712; the end of the stud 3717 facing away from the slider 375 is screwed into the threaded hole 3716 so that the distance between the first limiting wall 3714 and the second limiting wall 3715 is adjustable.

[0118] The distance between the first limiting wall 3714 and the second limiting wall 3715 of the first limiting member 371 is adjustable, specifically by adjusting the position of the stud 3717. The mounting part 3711 is mounted on the guide rail 373, and the position of the mounting part 3711 relative to the guide rail 373 is fixed, specifically by screwing or snapping. In this way, the position of the first limiting wall 3714 relative to the guide rail 373 is fixed.

[0119] The stud 3717 can extend along the length of the display screen, and the first limiting member 371, the first elastic member 377, and the sliding member 375 are arranged along the length of the display screen. The end of the stud 3717 away from the sliding member 375 is screwed into the threaded hole 3716. By rotating the stud 3717, the stud 3717 can move relative to the guide rail 373 along the length of the display screen 10, which can change the distance between the second limiting wall 3715 of the stud 3717 and the first limiting wall 3714 of the first limiting member 371.

[0120] The stud 3717 and the mounting block 3712 are connected by threads. The mounting block 3712 can be fixed on the guide rail 373 by the limit screw 112. By rotating the stud 3717, the distance between the stud 3717 and the mounting block 3712 can be controlled, which also controls the range of distance the display screen can move.

[0121] The first limiting member 371 and the guide rail 373 are detachably connected, for example, by screws or snaps. In some examples, the first limiting member 371 and the guide rail 373 are screwed together.

[0122] The guide rail 373 extends along the length of the display screen 10, thus guiding the slider 375 along the length of the display screen 10. When the slider 375 moves to the position of the first limiting member 371, it abuts against the first limiting member 371, thus preventing it from moving further.

[0123] When the transmission mechanism 30 is in translational motion, the transmission gear 31 rotates to drive the first rack 33 and the second rack 35 to move in opposite directions. That is, the movement distance of the first rack 33 and the second rack 35 is related to the transmission gear 31. When the tooth pitch of the first tooth of the first rack 33 and the second tooth of the second rack 35 is the same, the movement distance of the first rack 33 and the second rack 35 is the same when the transmission mechanism 30 is in translational motion. Thus, the distance the first rack 33 drives the display screen 10 to translate is the same as the distance the second rack 35 drives the slider 375 to move. When the slider 375 engages with the first limiting member 371 to lock the transmission gear 31, the first rack 33, and the second rack 35, the first rack 33 and the second rack 35 no longer translate, and the display screen 10 no longer moves in a straight line. In other words, the translational distance of the display screen 10 is related to the movement distance of the slider 375 on the guide rail. The distance between the first limiting wall 3714 and the second limiting wall 3715 of the first limiting member 371 is adjustable. This allows the sliding member 375 to change its movement distance on the guide rail, thereby further changing the translational distance of the display screen 10.

[0124] The distance between the slider 375 and the stud 3717 determines the distance by which the transmission mechanism 30 drives the display screen to move horizontally. This distance is changed primarily by altering the extension length of the stud 3717. A longer extension of the stud 3717 towards the slider 375 results in a smaller distance between them, while a shorter extension results in a larger distance. This distance further determines the horizontal movement distance of the display screen 10, ensuring that it does not obstruct the air outlet 3 after moving a certain distance. It is easy to understand that when the screen size is larger, if the distance between the air outlet and the rotation center of the screen remains unchanged, the screen will block the air outlet more severely in the vertical screen state, and the distance that the screen needs to move upward will be longer. In other words, the greater the distance that the screen 10 needs to move, the greater the distance that the transmission mechanism 30 drives the screen to move, the greater the distance between the sliding member 375 and the stud 3717, and the greater the distance between the first limiting wall 3714 and the second limiting wall 3715.

[0125] The distance between the slider 375 and the stud 3717 can be adjusted according to the actual situation.

[0126] The distance between the slider 375 and the stud 3717 is related to the degree of obstruction of the air outlet by the display screen. Generally, the distance between the rotation center of different sizes of display screens and the air outlet remains unchanged. Therefore, in order to adapt to different sizes of display screens, it is necessary to make variable adjustments to the distance the display screen moves upward, that is, the distance the second rack 35 and the slider 375 driven by it move.

[0127] Please combine Figure 6 In some embodiments, the limiting component 37 further includes a second power member 379, which is disposed on the side of the mounting portion 3711 away from the sliding member 375. The portion of the stud 3717 away from the sliding member 375 passes through the mounting portion 3711 and is drivenly connected to the second power member 379.

[0128] By controlling the second power component 379, the distance between the second limiting wall 3715 of the stud 3717 and the first limiting wall 3714 of the first limiting component 371 can be changed, thereby achieving automatic and precise control of the translational distance of the display screen 10.

[0129] The second power component 379 can be a motor, such as a stepper motor or a servo motor. The output shaft of the motor can be driven to the end of the stud 3717. In this way, by controlling the motor, the rotation of the stud 3717 can be controlled, thereby changing the distance between the second limiting wall 3715 of the stud 3717 and the first limiting wall 3714 of the first limiting component 371.

[0130] The threaded hole 3716 can penetrate the mounting part 3711 along the length of the display screen.

[0131] In some examples, the second power component 379 is a rotary motor that can electrically rotate the stud 3717, thereby achieving automatic adjustment. When the second power component 379 drives the stud 3717 to extend or retract, the rotary motor will also extend or retract accordingly. For this purpose, one side of the rotary motor can slide in the guide rail 373.

[0132] Please combine Figure 7 In some embodiments, the drive mechanism further includes a second limiting mechanism 50, which is used to limit the rotation of the first rack 33.

[0133] This ensures that when the first rack 33 moves horizontally, it does not rotate simultaneously, thus preventing the display screen 10 from rotating. This allows for more precise control of the linear movement distance of the display screen.

[0134] Please combine Figure 7In some embodiments, the second limiting mechanism 50 includes a movable second limiting member 53, which can be moved to the side of the first rack 33 opposite to the transmission gear 31 to limit the rotation of the first rack 33.

[0135] The first rack 33 is moved to the side of the first rack 33 opposite to the transmission gear 31 by the second limiting member 53, so that the first rack 33 does not rotate during translation.

[0136] Please combine Figure 7 In some embodiments, the second limiting mechanism 50 further includes a housing 51, and the second limiting member 53 is movably connected to the housing 51. The housing 51 is provided with a first receiving cavity 513 and an opening 511 communicating with the first receiving cavity 513.

[0137] The second limiting member 53 has a first state and a second state on the housing 51;

[0138] When the second limiting member 53 is in the first state, the second limiting member 53 is located inside the first receiving cavity 513;

[0139] When the second limiting member 53 is in the second state, at least a portion of the second limiting member 53 extends out of the opening 511 into the first receiving cavity 513, such that at least a portion of the second limiting member 53 is located on the side of the first rack 33 opposite to the transmission gear 31.

[0140] When the transmission mechanism 30 is in the translational state, the second limiting member 53 is in the second state, which can restrict the rotation of the first rack 33, thereby making the display screen 10 more stable in translation and less prone to rotation. This allows for precise control of the translational distance of the display screen 10 during translation and precise control of the rotation angle of the display screen 10 during rotation.

[0141] When the second limiting member 53 is in the first state, the second limiting member 53 is located in the first receiving cavity 513. In this way, the side of the first rack 33 away from the transmission gear 31 is not blocked by the second limiting member 53. When the transmission mechanism 30 is in the rotating state, the first rack 33 can rotate with the rotation of the transmission gear 31.

[0142] When the transmission mechanism 30 is in the translational state, when the second limiting member 53 is in the second state, at least part of the second limiting member 53 extends out of the opening 511 into the first receiving cavity 513, so that at least part of the second limiting member 53 is located on the side of the first rack 33 away from the transmission gear 31, which can restrict the first rack 33 from rotating.

[0143] In some embodiments, the second limiting mechanism 50 is fixed relative to the display screen 10; in some examples, the second limiting mechanism 50 may be fixedly mounted on the display screen.

[0144] Please combine Figure 7 In some embodiments, a third limiting portion 55 is provided on the housing 51 near the opening 511.

[0145] The second limiting member 53 includes a narrow end 531 and a wide end 533, which are arranged along the arrangement direction of the opening 511 and the first receiving cavity 513.

[0146] When the second limiting member 53 is in the second state, the narrow end 531 extends out of the opening 511 into the first receiving cavity 513, and the third limiting part 55 is used to abut against the wide end to limit the distance by which the narrow end 531 extends out of the first receiving cavity 513.

[0147] In some examples, the third limiting portion 55 can be attached to the housing 51 to cover part of the opening 511. In some examples, the third limiting portion 55 can be integrally formed with the housing 51. In other examples, the third limiting portion 55 can be attached to the housing 51 by means of bonding, welding, or other methods.

[0148] When the second limiting mechanism 50 is in the second state, the narrow end 531 extends out of the opening 511 into the first receiving cavity 513, and the mating part 57 is provided on the periphery of the wide end 533 for engaging with the third limiting part 55 when the narrow end 531 extends out of the first receiving cavity 513.

[0149] By cooperating with the third limiting part 55 and the cooperating part 57, the movement distance of the third limiting part 55 is limited, so that the second limiting mechanism 50 can flexibly switch between the first state and the second state.

[0150] In some examples, the periphery of the wide end 533 may be provided with a mating portion 57 for engaging with the third limiting portion 55 when the narrow end 531 extends out of the first receiving cavity 513. Thus, when the second limiting mechanism 50 is in the second state, as the narrow end 531 extends out of the first receiving cavity 513 from the opening 511, the wide end 533 moves along the side closest to the third limiting portion 55 until the third limiting portion 55 abuts against the mating portion 57. By limiting the movement distance of the third limiting portion 55 through the mating portion 57, the second limiting mechanism 50 can flexibly switch between the first and second states, ensuring the wide end 533 can extend and retract. The mating portion 57 and the wide end 533 can be connected by welding, bonding, snap-fitting, etc., and the mating portion 57 and the wide end 533 can be integrally formed. The mating portion 57 may be a protrusion surrounding the outer periphery of the wide end 533.

[0151] The third limiting part 55 is connected to the housing 51 and is used to cover part of the opening 511. The third limiting part 55 and the housing 51 can be connected by welding, bonding, snap-fitting or other methods. The third limiting part 55 and the housing 51 can be integrally formed.

[0152] Please combine Figure 7 In some embodiments, the second limiting mechanism 50 further includes a second elastic member 59, which is connected to the second limiting member 53 and the housing 51 respectively, and is used to push the second limiting member 53 out of the first receiving cavity 513.

[0153] This makes the switching between the first and second states of the second limiting mechanism 50 more seamless.

[0154] The two opposite ends of the second elastic member 59 can be used to connect the second limiting member 53 and the housing 51, respectively. This ensures that the narrow end 531 always extends out of the first receiving cavity 513 when no external force is applied. Thus, when the second limiting member 53 is in the second state, the narrow end 531 is located on the side of the first rack 33 away from the transmission gear 31, restricting the rotation of the first rack 33. That is, the second limiting member 53 is always in the second state.

[0155] When an external force is applied to the second limiting member 53, the second limiting member 53 can retract into the first receiving cavity 513, thereby not hindering the rotation of the display screen 10.

[0156] The second elastic element 59 can be a spring.

[0157] The second elastic element 59 can ensure that the second limiting element 53 is always raised, thereby limiting the first rack 33.

[0158] Please combine Figure 7 In some embodiments, the second limiting mechanism 50 further includes a magnetic element and a power component 58. The magnetic element is connected to the second limiting member 53, and the power component 58 is used to generate a magnetic field after being energized, so that the second limiting member 53 retracts into the first receiving cavity 513.

[0159] The magnetic component is connected to the second limiting component 53. In this way, the state switching of the second limiting component 53 can be controlled more flexibly through the cooperation of the power component 58 and the magnetic component.

[0160] In some other examples, the second limiting member 53 may be ferromagnetic, and the material of the second limiting member 53 may be iron, cobalt, nickel, aluminum nickel cobalt alloy, neodymium iron boron, magnetite, etc.

[0161] In some embodiments, the housing 51 is further provided with a second receiving cavity 515, which is located on the side of the first receiving cavity 513 away from the opening 511. The second limiting mechanism 50 also includes a power assembly 58, which includes an electromagnetic coil 581 and an electromagnet core 583. The power assembly 58 is located in the second receiving cavity 515. The electromagnetic coil 581 is wound around the electromagnet core 583 to generate a magnetic field after being energized, so that the second limiting member 53 retracts into the first receiving cavity 513.

[0162] The housing 51 has a second receiving cavity 515, which is located on the side of the first receiving cavity 513 away from the opening 511. The power assembly 58 is located in the second receiving cavity 515, so that the power assembly 58 is located on the side of the first receiving cavity 513 away from the opening 511.

[0163] The power assembly 58 includes an electromagnetic coil 581 and an electromagnet core 583. The electromagnetic coil 581 is wound around the electromagnet core 583, so that the electromagnetic coil 581 can generate a primary magnetic field, and the electromagnet core 583 can amplify and precisely control this magnetic field. The magnetic field acts on the second limiting member 53, thereby attracting the second limiting member 53, which has ferromagnetism, so that the second limiting member 53 moves toward the side closer to the power assembly 58, thereby allowing the second limiting member 53 to retract into the first receiving cavity 513.

[0164] In these embodiments, by providing a power component 58, the second limiting member 53 can switch states, thereby facilitating the rotation or translation of the display screen.

[0165] In some embodiments, the display screen 10 has a landscape mode and a portrait mode;

[0166] When the transmission mechanism 30 is in a rotating state, the transmission mechanism 30 drives the display screen 10 to rotate 90 degrees along the normal direction of the display screen, so as to switch the display screen 10 to landscape mode or portrait mode.

[0167] In some examples, when the display screen 10 is in landscape mode, its length is aligned with the width of the vehicle. When the display screen 10 is in portrait mode, its width is aligned with the length of the vehicle. When the transmission mechanism 30 is rotating, it rotates the display screen 10 90 degrees along the normal direction of the display screen, thereby switching the display screen 10 to either landscape or portrait mode.

[0168] There are multiple second limiting mechanisms 50, and the first rack 33 has multiple positions. Each second limiting mechanism 50 is used to restrict the rotation of the first rack 33 when the first rack 33 is in the corresponding position.

[0169] By setting multiple second limiting mechanisms 50, it is ensured that when the display screen 10 rotates to different positions and undergoes translational movement, at least one second limiting mechanism 50's second limiting member 53 is located on the side of the first rack 33 away from the transmission gear 31. This ensures that the display screen 10 is not prone to rotation or shaking during translational movement.

[0170] In some examples, please combine Figure 3 as well as Figure 7 When the transmission mechanism 30 is rotating, the transmission gear 31 drives the first rack 33 to rotate 90 degrees from the first position to the second position. There are two second limiting mechanisms 50. The line connecting the center of one second limiting mechanism 50 and the center of the transmission gear 31 is perpendicular to the line connecting the center of the other second limiting mechanism 50 and the center of the transmission gear 31. When the first rack 33 is in the first position, the second limiting member 53 of the first limiting mechanism 50 is located on the side of the first rack 33 away from the transmission gear 31, which is used to limit the rotation of the first rack 33. When the first rack 33 is in the first position, the second limiting member 53 of the other second limiting mechanism 50 is located on the side of the first rack 33 away from the transmission gear 31.

[0171] When the transmission mechanism 30 is in a rotating state, the transmission gear 31 drives the first rack 33 to rotate 90 degrees from the first position to the second position; thereby driving the display screen 10 to rotate 90 degrees around its normal. In some examples, when the first rack 33 is in the first position, the display screen 10 can be in a landscape state, and when the first rack 33 is in the second position, the display screen 10 can be in a portrait state. The transmission gear 31 drives the first rack 33 to rotate 90 degrees from the first position to the second position; thereby driving the display screen 10 to switch from a landscape state to a portrait state.

[0172] There are two second limiting mechanisms 50. The line connecting the center of one second limiting mechanism 50 and the center of the transmission gear 31 is perpendicular to the line connecting the center of the other second limiting mechanism 50 and the center of the transmission gear 31. Thus, when the first rack 33 is in the first position, the second limiting member 53 of one second limiting mechanism 50 is located on the side of the first rack 33 away from the transmission gear 31, which is used to restrict the rotation of the first rack 33. When the first rack 33 is in the first position, the second limiting member 53 of the other second limiting mechanism 50 is located on the side of the first rack 33 away from the transmission gear 31.

[0173] This makes it difficult for the display screen 10 to rotate when it is in landscape mode or when it is in portrait mode.

[0174] In some examples, when the transmission mechanism 30 is in a rotating state, the transmission mechanism 30 drives the display screen 10 to rotate 90 degrees around its normal; there are two second limiting mechanisms 50, the line connecting the center of one second limiting mechanism 50 and the center of the transmission gear 31 is perpendicular to the line connecting the center of the other second limiting mechanism 50 and the center of the transmission gear 31. When the display screen 10 is in the first state, the second limiting member 53 of one second limiting mechanism 50 is located on the side of the first rack 33 away from the transmission gear 31, which is used to limit the rotation of the first rack 33; when the display screen 10 is in the second state, the second limiting member 53 of the other second limiting mechanism 50 is located on the side of the first rack 33 away from the transmission gear 31.

[0175] By setting two second limiting mechanisms 50, it is ensured that when the display screen 10 is in landscape mode or portrait mode, at least one second limiting member 53 of the second limiting mechanism 50 is located on the side of the first rack 33 away from the transmission gear 31. This ensures that the display screen 10 is not prone to rotation or shaking when it is in translational motion.

[0176] The cooperation between the second limiting mechanism 50 and the first rack 33 ensures that the rotational motion of the transmission gear 31 is first converted into translational motion and then into rotational motion in stages. In other words, the motion of the display screen 10 is divided into two forms: translational motion and rotational motion. The addition of translational motion enables the display screen 10 to move upward a certain distance in its plane in the vertical screen state, thereby achieving the purpose of not blocking the central air vent of the car air conditioner.

[0177] The second limiting mechanism 50 is arranged on the side of the first rack 33 away from the transmission gear 31, specifically the side away from the second gear. It can ensure that the first rack 33 can be constrained no matter how far it moves, preventing the first rack 33 from rotating. This ensures that the rotational motion of the transmission gear 31 can be smoothly converted into the translational motion of the first rack 33 and the second rack 35.

[0178] Please combine Figure 3 as well as Figure 7 In some embodiments, the narrow end 531 includes a wedge-shaped wall 5317, and when the transmission mechanism 30 is in a rotating state, the first rack 33 is used to press against the wedge-shaped wall 5317 so that the second limiting member 53 is in a second state.

[0179] In these examples, the narrow end 531 is wedge-shaped, and the wedge-shaped wall 5317 is located on the side of the second limiting member 53 away from the transmission gear 31. Thus, when the transmission mechanism 30 is rotating, the first tooth 331 of the first rack 33 can press against the wedge-shaped wall, causing the narrow end 531 of the second limiting member 53 to retract into the first receiving cavity 513. At this time, the second elastic member 59 is in a compressed state, thus not hindering the rotation of the first rack 33. When the transmission mechanism 30 drives the display screen 10 to a preset position, that is, when the display screen 10 has switched to the first state or the second state, the transmission mechanism 30 can be in a translational state. The first tooth 331 of the first rack 33 no longer presses against the wedge-shaped wall. Under the action of the second elastic member 59, the narrow end 531 of the second limiting member 53 re-extends from the first receiving cavity 513, thus being located on the side of the first rack 33 away from the transmission gear 31, restricting the rotation of the transmission mechanism 30 in the translational state.

[0180] Please combine Figure 3 as well as Figure 7 In some embodiments, when the transmission mechanism 30 is in a translational state, the wedge-shaped wall surface 5317 is located on the side of the second limiting member 53 away from the transmission gear 31.

[0181] This prevents the narrow end 531 of the second limiting member 53 from retracting into the first receiving cavity 513 when the first rack 33 presses against the wedge-shaped wall 5317 during translation.

[0182] Please combine Figure 3 as well as Figure 7 In some embodiments, the narrow end 531 further includes a second wall surface 5313, which is disposed opposite to the wedge-shaped wall surface 5317. When the transmission mechanism 30 is in a translational state, the second wall surface 5313 is used to restrict the rotation of the first rack 33.

[0183] Specifically, the narrow end 531 is wedge-shaped and may include a first wall surface 5311, a second wall surface 5313, a third wall surface 5315 and a wedge-shaped wall surface 5317 connected in sequence. The side of the wedge-shaped wall surface 5317 opposite to the wide end 533 is connected to the side of the second wall surface 5313 opposite to the wide end 533. The first wall surface 5311 and the third wall surface 5315 are arranged opposite to each other.

[0184] The wedge-shaped wall 5317 is located on the side of the second limiting member 53 away from the transmission gear 31. When the transmission mechanism 30 is in the rotating state, the first tooth 331 is used to press against the wedge-shaped wall so that the second limiting member 53 is in the second state.

[0185] The first wall surface 5311, the second wall surface 5313, the third wall surface 5315, and the wedge-shaped wall surface 5317 can be integrally formed. In some examples, the narrow end 531 can be cut to form the first wall surface 5311, the second wall surface 5313, the third wall surface 5315, and the wedge-shaped wall surface 5317. The angle between the first wall surface 5311 and the second wall surface 5313 is a right angle, and the angle between the second wall surface 5313 and the third wall surface 5315 is a right angle. The wedge-shaped wall surface 5317 is connected to the first wall surface 5311, the second wall surface 5313, and the third wall surface 5315.

[0186] In some embodiments, the extension and retraction movement of the narrow end 531 of the second limiting member 53 can be achieved by external force squeezing the wedge-shaped wall 5317 of the narrow end 531, or by actively controlling the energization of the electromagnetic coil. After being energized, the electromagnetic coil 581 and the electromagnet core 583 can generate a magnetic field, pulling the narrow end 531 to contract. The second limiting member 53 can be made of a ferromagnetic metal material or have a ferromagnetic metal block embedded at its end.

[0187] When the narrow end 531 of the second limiting member 53 is not retracted, the degree of freedom of the first rack 33 can be constrained to a certain extent. At this time, the rotational motion transmitted from the transmission gear 31 will be converted into the translational motion of the first rack 33 and the second rack 35 until the first limiting member 371 contacts the sliding member 375. When the first limiting member 371 contacts the sliding member 375, the translational motion stops and the mechanism locks. At this time, the control electromagnetic coil 581 is energized, attracting the narrow end 531 of the second limiting member 53 to retract. The first rack 33 no longer cooperates with the narrow end 531 of the second limiting member 53. The rotational motion transmitted from the transmission gear 31 will drive the second rack 35 and the first rack 33 to rotate, thereby driving the display screen 10 connected to the first rack 33 to rotate.

[0188] To ensure the smooth rotation of the second rack 35, the narrow end 531 of the second limiting member 53 of the second limiting mechanism 50 extends no longer than the second rack 35. To ensure that the second limiting mechanism 50 can properly limit the first rack 33, the width of the first rack 33 is widened near the power input end, thereby ensuring normal cooperation with the second limiting mechanism 50.

[0189] The extension length of the narrow end 531 of the second limiting member 53 of the second limiting mechanism 50 can be basically equal to the difference between the first rack 33 and the second rack 35, and its retraction should not obstruct the normal rotation of the first rack 33.

[0190] Please combine Figure 2In some embodiments, the transmission gear 31 includes a first gear 310 and a second gear 330 that mesh with each other. The second gear 330 is driven to be connected to the first power member. The first gear 310 meshes with the first rack 33. The number of teeth of the second gear 330 is less than the number of teeth of the first gear 310.

[0191] The number of teeth of the second gear 330 is less than the number of teeth of the first gear 310. The first gear 310 can amplify the torque of the second gear 330, thereby better driving the display screen 10 to move horizontally.

[0192] A gear is a wheel-shaped mechanical part with teeth on its edges, capable of continuous meshing to transmit motion and power. Both the first gear 310 and the second gear 330 are circular gears.

[0193] The second gear 330 is driven and connected to the first power component, which can be a motor. The output shaft of the motor is driven and connected to the second gear 330, thereby causing the second gear 330 to rotate. The first power component can also be powered by air, liquid, etc., such as a pump or cylinder, as long as it can drive the second gear 330 to rotate. This embodiment does not impose any restrictions on this.

[0194] In some examples, the second gear 330 can act as the driving gear, and the first power component can be a rotary motor. The second gear 330 is connected to the first power component, meaning the driving gear is connected to the rotary motor as the input end of the motion. The first gear 310 cooperates with the second gear 330, and the second gear 330 can act as the driven gear. The first gear 310 has more teeth, which amplifies the torque transmitted from the second gear 330, thereby driving the display screen 10 to move.

[0195] The first gear 310 meshes with both the second rack 35 and the first rack 33. Through this meshing, the rotational motion of the gear is converted into the linear motion of the rack, achieving a translational effect.

[0196] Furthermore, to ensure the normal rotational movement of the second rack 35 and the first rack 33, the first gear is staggered with the first rack 33. The second gear, to ensure normal power transmission and gear meshing, has its tooth thickness widened on the power input side.

[0197] In some embodiments, please combine Figure 2 as well as Figure 3 The transmission mechanism 30 includes a second gear 330, a first rack 33 and a second rack 35. The first rack 33 and the second rack 35 are located on opposite sides of the second gear 330 and mesh with the second gear 330 respectively, so that the second gear 330 can drive the first rack 33 and the second rack 35 to move in opposite directions.

[0198] The switching mechanism 300 includes a limiting component 37, which includes a first follower and a second follower. The first follower is connected to the display screen 10 and can move with the display screen 10. The second follower is connected to the second rack 35 and can move with the second rack 35.

[0199] When the first follower and the second follower are not in contact, the transmission mechanism 30 is in a translational state; when the first follower and the second follower are in contact, the transmission mechanism 30 is in a rotational state.

[0200] In these embodiments, the second gear 330 can drive the first rack 33 and the second rack 35 to move in opposite directions. The first rack 33 drives the display screen 10 to move in the opposite direction to the second rack 35. Specifically, the translational direction of the first rack 33 driving the display screen 10 is opposite to the translational direction of the second rack 35. Thus, the first rack 33 drives the display screen 10 to translate, and the second rack 35 translates, meaning the second rack 35 can translate relative to the display screen 10.

[0201] The second rack 35 can drive the second follower to move in a direction toward the first follower. When the second follower abuts against the first follower, the first follower limits the second rack 35 so that the second rack 35 is locked relative to the second gear 330.

[0202] The transmission mechanism can switch between translational and rotational states through the cooperation of the first and second follower members. When the first and second follower members are not in contact, the transmission mechanism 30 is in the translational state; when the first and second follower members are in contact, the transmission mechanism 30 is in the rotational state.

[0203] In some embodiments, please combine Figure 2 as well as Figure 3 The first follower includes a first limiting member 371, and the second follower includes a sliding member 375.

[0204] When the transmission mechanism 30 is in a translational state, the second rack 35 drives the sliding member 375 to move toward the direction of the first limiting member 371. When the sliding member 375 abuts against the first limiting member 371, the first limiting member 371 limits the second rack 35 so that the second rack 35 is locked relative to the second gear 330.

[0205] In some embodiments, please combine Figure 2 , Figure 3 as well as Figure 6The limiting component 37 also includes a guide rail 373, which is used to fix the display screen 10. The first limiting member 371 is fixed to the guide rail 373, and the sliding member 375 is slidably connected to the guide rail 373. When the transmission mechanism 30 is in the translational state, the second rack 35 abuts against the sliding member 375 so that the second rack 35 drives the sliding member 375 to move along the guide rail 373 toward the direction close to the first limiting member 371.

[0206] The guide rail 373 can be fixedly installed on the back of the display screen 10, for example, by screwing, snapping, welding, etc. In these embodiments, the guide rail 373 is fixed to the back of the display screen 10, and the slider 375 can slide relative to the guide rail 373, so that the slider 375 slides relative to the guide rail 373 and relative to the display screen 10.

[0207] The guide rail 373 can be a long strip structure extending along the length of the display screen. The slider 375 can slide along the extension direction of the guide rail 373. The slider 375 can be a block structure, such as a cube or a cuboid.

[0208] In some embodiments, the guide rail 373 is fixedly connected to the back of the display screen 10, and is mainly used to provide guidance and support for the translation of the second rack 35, which can translate relative to the display screen 10. When the slider 375 moves with the second rack 35 to contact the first limiting member 371, the translation of the second rack 35 will be restricted, and the gear and rack meshing motion will stop. Power will be transmitted from the second gear 330 to the first rack 33, and the first rack 33 will rotate with the second gear 330. Furthermore, the first rack 33 will drive the display screen 10 to rotate.

[0209] Please combine Figure 2 In some embodiments, the drive mechanism further includes an outer cover 70 for mounting on the back of the display screen 10. The outer cover 70 has a receiving cavity 71, and the transmission mechanism 30 is located within the receiving cavity 71. This protects the receiving cavity 71.

[0210] In some embodiments, the outer cover 70 is mounted on the back of the display screen 10 to shield and protect the transmission mechanism 30.

[0211] In some embodiments, the switching mechanism 300, the first power member, and the transmission mechanism 30 may all be disposed within the receiving cavity 71.

[0212] In some embodiments, the radius of the outer cover 70 is larger than the radius between the line connecting the guide rail to the rotation center of the transmission gear 31 when the guide rail is translated to its farthest point, thereby ensuring the normal operation of the rotational translation.

[0213] In the drive mechanism of this application, the order and transition point of translation and rotation are closely related to the relative relationship between the transmission gear 31, the first rack 33, and the second rack 35 in the initial state, and the energization time of the electromagnetic coil 581. Please refer to... Figure 8 , Figure 8 The diagram illustrates four scenarios: 01, 02, 03, and 04. Figure 8 The numbers 01, 02, 03, and 04 marked on the center of the second gear 330 represent four scenarios: 01, 02, 03, and 04, respectively.

[0214] In scenario 01, the second gear 330 rotates clockwise, and the second limiting mechanism 50 is in its second state, meaning at least a portion of the second limiting member 53 extends from the opening 511 into the first receiving cavity 513, such that at least a portion of the second limiting member 53 is located on the side of the first rack 33 opposite to the transmission gear 31, thus limiting the rotation of the first rack 33. At this time, the second rack 35 translates to the right, and the first rack 33 drives the display screen 10 to move to the left. When the second rack 35 drives the sliding member 375 to translate and contact the stud 3717, the second rack 35 stops translating. At this moment, the gear and rack mechanism locks, the electromagnetic coil 581 is energized, the second limiting mechanism 50 operates, and the second limiting member 53 is attracted and retracted by magnetic force. Scenario 02 can then be entered.

[0215] In scenario 02, the second gear 330 continues to rotate clockwise. Due to the locking of the gear and rack mechanism, the entire mechanism will follow the second gear 330 in a clockwise rotation, meaning the display screen 10 switches from landscape to portrait mode. In scenario 01, the first rack 33 moves to the left; in scenario 02, the rotation immediately causes the display screen 10 to lift upwards, as shown below. Figure 9 , Figure 10 Figure c in the middle and Figure 11 As shown, at this time, the display screen 10 in portrait mode no longer obstructs the central air vent of the car's air conditioning system. The specific movement on the display screen 10 can be seen in the following example. Figure 8 .

[0216] During the transition from scenario 02 to scenario 03, refer to Figure 12 As shown, the second limiting mechanism 50 is arranged on the rotational path of the first rack 33. The wedge-shaped wall 5317 of the narrow end 531 of the second limiting member 53 is arranged close to the first tooth of the first rack 33. When the first rack 33 moves, the wedge-shaped wall 5317 is squeezed by the first rack 33 and retracts into the housing 51 under the action of external force. After the first rack 33 completes rotation, the narrow end 531 of the second limiting member 53 pops out again under the action of the second elastic member 59, and cooperates with the first rack 33 to constrain its subsequent movement.

[0217] When the display screen 10 switches from portrait mode to landscape mode, it first switches to scenario 03. At this time, the second gear 330 rotates counterclockwise, and the gear and rack mechanism is no longer locked. Due to the cooperation between the second limiting mechanism 50 and the first rack 33, the second rack 35 and the first rack 33 move in translation under the drive of the second gear 330. When the second rack 35 drives the sliding member 375 to move in translation until it contacts the stud 3717, the gear and rack will lock again and enter scenario 04.

[0218] In scenario 03, the locked gear rack will rotate counterclockwise with the second gear 330, and the display screen 10 will follow the first rack 33 to rotate from the vertical screen back to the initial horizontal screen state. All drive mechanisms will also return to the initial state and wait for the next cycle.

[0219] This completes one cycle of scene switching between portrait and landscape modes and a panning sequence.

[0220] During the transition from scenario 03 to scenario 04, the second limiting mechanism 50 will affect the normal rotation of the first rack 33. The second limiting member 53 will retract into the housing 51 under the pressure of the first rack 33. The key to the second limiting member 53's ability to constrain the first rack 33 and retract after being pressed by it lies in the arrangement direction of the wedge-shaped baffle. Please refer to the following for details. Figure 10 as well as Figure 2 .

[0221] Furthermore, in scenario 01, the rotation angle of the second gear 330 can be adjusted according to user needs, i.e., the movement distance of the second rack 35. For example, if the user only wants to move the display screen from the center to the side closer to the driver for better information interaction, this scenario is generally applicable when the screen is small and the display screen is far from the driver in landscape mode, making information interaction between the driver and the display screen difficult. In this case, the movement distance of the second rack 35 will be determined by the distance the driver selects to move the display screen to their side, without continuously moving it until the gear and rack mechanism locks and rotates as a whole.

[0222] In some other embodiments, please refer to Figure 13 , Figure 13 The image shows four scenes: 01, 02, 03, and 04. Figure 13 The numbers 01, 02, 03, and 04 marked at the center of the second gear 330 represent four scenarios: 01, 02, 03, and 04, respectively.

[0223] The first rack 33 can be positioned above the second gear 330, while the second rack 35 is positioned below it. In scenario 01, after the second gear 330 rotates clockwise, the rack and pinion mechanism is locked, and the first rack 33 and the second rack 35 will rotate clockwise along with the second gear 330. At this time, the first rack 33 remains fixedly connected to the display screen, and in scenario 01, the display screen will rotate clockwise along with the first rack 33. Since directly rotating to the portrait mode might obstruct the central air vent of the car's air conditioning, in scenario 02, the second gear 330 will rotate counterclockwise. At this time, the first rack 33 will move the display screen upwards to avoid obstructing the central air vent of the car's air conditioning. Thus, the conversion of the large display screen from landscape to portrait mode is completed without obstructing the central air vent of the car's air conditioning. When switching from portrait to landscape mode, scenario 03 will also involve rotation. At this point, the second gear 330 rotates counterclockwise. The gear rack is locked after the translation process, so it will rotate counterclockwise along with the entire gear assembly. When switching to landscape mode, due to the previous upward avoidance translation, in order to return to the initial state and center the display, step 04 is entered. The second gear 330 rotates clockwise, and the gear rack mechanism unlocks, allowing for translation. At this time, the display moves to the right under the drive of the first rack 33, returning to the initial state, waiting for the next cycle.

[0224] Please combine Figure 9 , Figure 10 as well as Figure 11 According to a third aspect of this application, this disclosure provides a display device, including the aforementioned driving mechanism and a display screen, wherein the display screen is connected to the driving mechanism. When the transmission mechanism 30 is in a translational state, the transmission mechanism 30 can drive the display screen to translate; when the transmission mechanism 30 is in a rotational state, the transmission mechanism 30 can drive the display screen to rotate.

[0225] In the driving mechanism of this application embodiment, the transmission mechanism has a translational state and a rotational state. A switching mechanism allows the transmission mechanism to switch between these two states. The transmission mechanism is used to connect to the display screen, thus further driving the display screen to translate or rotate. In vehicle applications, when the display screen switches between landscape and portrait modes, the portrait mode can easily obstruct or interfere with parts of the vehicle's structure. Since the vehicle is equipped with the driving mechanism of this application, the display screen can be translated within a plane. Thus, when the portrait mode obstructs or interferes with parts of the vehicle's structure, the display screen can be translated so that it no longer obstructs or interferes with the vehicle's structure. For example, when switching from landscape to portrait mode, the portrait mode might obstruct the air conditioning vents. In this case, the display screen can be translated towards the roof of the vehicle so that it no longer obstructs the air conditioning vents, thereby improving the air conditioning's airflow.

[0226] In some embodiments, the transmission mechanism 30 includes a first transmission member and a second transmission member, the first transmission member being used to receive external power, and the second transmission member being fixedly connected to the display screen 10; the switching mechanism includes a limiting component 37.

[0227] The limiting component can lock or move the first and second transmission components relative to each other. When the first and second transmission components are locked relative to each other, the transmission mechanism is in a rotating state. When the first and second transmission components are moving relative to each other, the transmission mechanism is in a translating state.

[0228] In these embodiments, the limiting component 37 switches the transmission mechanism between a translational state and a rotational state. The limiting component 37 locks the first transmission member relative to the second transmission member, allowing the second transmission member to rotate with the first transmission member. This, in turn, enables the display screen to rotate. When the first transmission member is translating relative to the second transmission member, the second transmission member can then drive the display screen 10 to translate.

[0229] In some embodiments, the first transmission component includes a transmission gear 31, and the second transmission component includes a first rack 33; the transmission gear 31 and the first rack 33 mesh; the first rack 33 is fixedly connected to the display screen 10.

[0230] When the transmission mechanism 30 is in the translational state, the transmission gear 31 rotates and drives the first rack 33 to translate, so that the first rack 33 drives the display screen 10 to translate. When the transmission mechanism 30 is in the rotational state, the transmission gear 31 drives the first rack 33 to rotate, so that the first rack 33 drives the display screen 10 to rotate.

[0231] When the transmission mechanism 30 is in the translational state, the transmission gear 31 rotates and drives the first rack 33 to translate, so that the first rack 33 drives the display screen 10 to translate. When the transmission mechanism 30 is in the rotational state, the transmission gear 31 drives the first rack 33 to rotate, so that the first rack 33 drives the display screen 10 to rotate.

[0232] The transmission gear 31 and the first rack 33 work together to drive the first rack 33 to move in a linear motion, thereby causing the display screen 10 to move in a linear motion; or drive the first rack 33 to rotate, thereby causing the display screen 10 to rotate. The linear motion and rotation of the display screen 10 can be achieved through a first power component. The structure is simple, easy to implement, and low in cost.

[0233] In these embodiments, the first rack 33 meshes with the transmission gear 31, and when the transmission gear 31 rotates, it drives the first rack 33 to move. When the first rack 33 and the transmission gear 31 work together, the rotational motion of the transmission gear 31 can be converted into the linear motion of the first rack 33. For example, when the transmission gear 31 rotates, it drives the first rack 33 meshing with it to translate.

[0234] Understandably, the transmission gear 31 is a wheel-shaped mechanical part with teeth on its edge, which can continuously mesh to transmit motion and power.

[0235] Specifically, the first rack 33 can be an elongated structure. The first rack 33 is used to connect to the display screen 10. For example, the first rack 33 can be fixed to the back of the display screen 10.

[0236] Please combine Figure 1 and Figure 2 The first rack 33 and the display screen 10 can be fixedly connected, such as by welding, bonding, snap-fitting, or screwing. In this embodiment, when the first rack 33 moves, it will drive the display screen 10 to move.

[0237] For example, a fixing pin 12 can be installed on the back of the display screen, and a through hole can be opened on the first rack 33. The first rack 33 can be fixed to the back of the display screen by connecting with the fixing pin 12, and the display screen 10 moves synchronously with the first rack 33.

[0238] When the transmission mechanism 30 is in a translational state, the transmission gear 31 rotates and drives the first rack 33 to translate. In other words, when the transmission gear 31 rotates, it drives the first rack 33, which meshes with it, to translate. Since the first rack 33 is fixed to the back of the display screen 10, the first rack 33 can drive the display screen 10 to translate.

[0239] In some examples, when the transmission mechanism 30 is in a rotating state, the first rack 33 is fixed relative to the transmission gear 31, for example, the first rack 33 is locked to the transmission gear 31. In this case, when the transmission gear 31 rotates, the first rack 33 can rotate with the transmission gear 31. Since the first rack 33 is fixed to the back of the display screen 10, the first rack 33 can drive the display screen 10 to rotate with the transmission gear 31.

[0240] Please combine Figure 3 as well as Figure 4 The first rack 33 may include a first tooth 331 and a mounting base 333 connected to each other. The first tooth 331 meshes with the transmission gear 31, and the mounting base 333 is fixed to the back of the display screen 10.

[0241] In some embodiments, the drive mechanism further includes an outer cover 70, which is mounted on the back of the display screen 10. The outer cover 70 has a receiving cavity 71, and the transmission mechanism 30 is located in the receiving cavity 71.

[0242] In some embodiments, the outer cover 70 is mounted on the back of the display screen 10 to shield and protect the transmission mechanism 30.

[0243] In some embodiments, the radius of the outer cover 70 is larger than the radius between the line connecting the guide rail to the rotation center of the transmission gear 31 when the guide rail is translated to its farthest point, thereby ensuring the normal operation of the rotational translation.

[0244] In some embodiments, the switching mechanism, the first power member, and the transmission mechanism 30 may all be disposed within the receiving cavity 71.

[0245] In some embodiments, please combine Figure 2 as well as Figure 3 The transmission mechanism 30 includes a second gear 330, a first rack 33 and a second rack 35. The first rack 33 and the second rack 35 are located on opposite sides of the second gear 330 and mesh with the second gear 330 respectively, so that the second gear 330 can drive the first rack 33 and the second rack 35 to move in opposite directions.

[0246] The switching mechanism 300 includes a limiting component 37, which includes a first follower and a second follower. The first follower is connected to the display screen 10 and can move with the display screen 10, and the second follower is connected to the second rack 35 and can move with the second rack 35.

[0247] When the first follower and the second follower are not in contact, the transmission mechanism 30 is in a translational state; when the first follower and the second follower are in contact, the transmission mechanism 30 is in a rotational state.

[0248] In these embodiments, the second gear 330 can drive the first rack 33 and the second rack 35 to move in opposite directions. The first rack 33 drives the display screen 10 to move in the opposite direction to the second rack 35. Specifically, the translational direction of the first rack 33 driving the display screen 10 is opposite to the translational direction of the second rack 35. Thus, the first rack 33 drives the display screen 10 to translate, and the second rack 35 translates, meaning the second rack 35 can translate relative to the display screen 10.

[0249] The second rack 35 can drive the second follower to move in a direction toward the first follower. When the second follower abuts against the first follower, the first follower limits the second rack 35 so that the second rack 35 is locked relative to the second gear 330.

[0250] The transmission mechanism can switch between translational and rotational states through the cooperation of the first and second follower members. When the first and second follower members are not in contact, the transmission mechanism 30 is in the translational state; when the first and second follower members are in contact, the transmission mechanism 30 is in the rotational state.

[0251] In some embodiments, please combine Figure 2 as well as Figure 3 The first follower includes a first limiting member 371, and the second follower includes a sliding member 375.

[0252] When the transmission mechanism 30 is in a translational state, the second rack 35 drives the sliding member 375 to move toward the direction of the first limiting member 371. When the sliding member 375 abuts against the first limiting member 371, the first limiting member 371 limits the second rack 35 so that the second rack 35 is locked relative to the second gear 330.

[0253] In some embodiments, please combine Figure 2 , Figure 3 as well as Figure 6 The limiting component 37 also includes a guide rail 373, which is fixed to the display screen 10. The first limiting member 371 is fixed to the guide rail 373, and the sliding member 375 is slidably connected to the guide rail 373. When the transmission mechanism 30 is in the translational state, the second rack 35 abuts against the sliding member 375, so that the second rack 35 drives the sliding member 375 to move along the guide rail 373 toward the direction close to the first limiting member 371.

[0254] The guide rail 373 can be fixedly installed on the back of the display screen 10, for example, by screwing, snapping, welding, etc. In these embodiments, the guide rail 373 is fixed to the back of the display screen 10, and the slider 375 can slide relative to the guide rail 373, so that the slider 375 slides relative to the guide rail 373 and relative to the display screen 10.

[0255] The guide rail 373 can be a long strip structure extending along the length of the display screen. The slider 375 can slide along the extension direction of the guide rail 373. The slider 375 can be a block structure, such as a cube or a cuboid.

[0256] In some embodiments, the guide rail 373 is fixedly connected to the back of the display screen 10, and is mainly used to provide guidance and support for the translation of the second rack 35, which can translate relative to the display screen 10. When the slider 375 moves with the second rack 35 to contact the first limiting member 371, the translation of the second rack 35 will be restricted, and the gear and rack meshing motion will stop. Power will be transmitted from the second gear 330 to the first rack 33, and the first rack 33 will rotate with the second gear 330. Furthermore, the first rack 33 will drive the display screen 10 to rotate.

[0257] Please combine Figure 9 , Figure 10 as well as Figure 11 According to a third aspect of this application, this disclosure provides a vehicle including the drive mechanism or the display device described above.

[0258] The vehicle may be a gasoline-powered vehicle, a plug-in hybrid electric vehicle, or a new energy vehicle, etc., and this disclosure does not make any specific restrictions.

[0259] Please combine Figure 9 , Figure 10 as well as Figure 11 In some embodiments, the vehicle further includes an air vent 3, and the display screen 10 is disposed near the air vent 3;

[0260] The display screen has a landscape orientation, in which the projection of the air vent is outside the projection of the display screen along the length of the vehicle; and / or the display screen has a portrait orientation, in which the projection of the air vent is outside the projection of the display screen along the length of the vehicle.

[0261] In these embodiments, the vehicle may also include a damper 2, which forms an air outlet 3, and a display screen 10 is disposed near the damper, with the air outlet of the damper exposed on the display screen 10 along the length of the vehicle.

[0262] The vehicle is equipped with an air conditioner, which has an air vent that directs airflow outwards. Specifically, the air vent can be the central air vent of the car's air conditioning system, formed by the air vent. The direction of the air vent can be changed by altering the angle of the air vent. Changing the direction of the air vent alters the direction of the airflow, allowing it to be directed to different locations.

[0263] In these embodiments, the drive mechanism of this application can realize the switching between landscape and portrait modes of the display screen. It can also make the large-size display screen move upward in portrait mode to avoid the air vents of the car air conditioner, thus avoiding the large-size display screen from blocking the airflow in portrait mode, reducing the noise in the passenger compartment, and ensuring the normal use of the central air vents of the car air conditioner.

[0264] Because the vehicle includes the aforementioned drive mechanism, it possesses all the beneficial effects of such a drive mechanism. Through the ingenious cooperation of the transmission gear 31, the first rack 33, and the second rack 35, the transmission gear 31 can drive the display screen 10 to translate within its plane for a period of time during rotation, and drive the display screen 10 to rotate for a period of time, thereby completing the switching between horizontal and vertical screens.

[0265] It can not only switch between landscape and portrait modes, but also move the display screen unidirectionally along the width of the vehicle, bringing the display screen closer to the driver for easier information interaction and improving driving safety.

[0266] Because the distance between the first limiting wall 3714 and the second limiting wall 3715 of the first limiting member 371 is adjustable, the movement distance of the sliding member 375 on the guide rail can be changed, thereby further changing the translational distance of the display screen 10. This allows for adaptation to display screens of different sizes, ensuring that the display screen does not obstruct the central air vent of the car's air conditioning system in portrait mode. This further expands the applicability of the drive mechanism of this application and reduces the size constraints of the display screen, allowing for larger display screens without easily obstructing the air vent.

[0267] Since at least part of the second limiting member 53 is located on the side of the first rack 33 opposite to the transmission gear 31, it can limit the rotation of the first rack 33. In this way, when the display screen is adjusted to be horizontal, the display screen only moves towards the driver without triggering rotation.

[0268] Please combine Figure 10 , Figure 10 (a) in the figure shows a side view of the relative relationship between the display screen and the air vent when the display screen is in landscape mode. Figure 10 Image (b) shows a side view illustrating the relative relationship between the display screen and the air vent when the display screen is in portrait mode. In this view, part of the display screen obstructs the air vent. It's easy to understand that when the display screen is rotated from landscape mode to portrait mode, part of the display screen will also obstruct the air vent. In this case, the display screen is moved horizontally along the height of the vehicle, causing the display screen to... Figure 10 At position (c) shown in the diagram, the display screen no longer obstructs the air outlet. Figure 10(c) in the figure illustrates a side view of the relative relationship between the display screen and the air vent when the display screen is in portrait mode in the embodiment of this application. It can be seen that the display screen does not block the air vent.

[0269] In some embodiments, the display screen has a landscape mode and a portrait mode. When the display screen is in the landscape mode, the length direction of the display screen is consistent with the width direction of the vehicle. When the display screen is in the portrait mode, the width direction of the display screen is consistent with the width direction of the vehicle. When the transmission mechanism 30 is in the rotating state, the transmission mechanism 30 drives the display screen 10 to rotate 90 degrees along the normal direction of the display screen to switch the display screen 10 to the landscape mode or the portrait mode.

[0270] Please combine Figure 14 According to a fourth aspect of this application, this disclosure provides a control method for a drive mechanism, applied to the aforementioned vehicle, the control method comprising:

[0271] T1: When the display screen is in portrait mode, control the display screen to move horizontally along the height direction of the vehicle to a preset position. In portrait mode, the width direction of the display screen is consistent with the width direction of the vehicle.

[0272] T2: Control the display screen to rotate to landscape mode, where the length of the display screen is aligned with the width of the vehicle.

[0273] When in portrait mode, the display screen can be moved horizontally along the height of the vehicle to ensure that the display screen does not block the air vents.

[0274] Please combine Figure 15 According to a fifth aspect of this application, this disclosure provides a control method for a drive mechanism, applied to the aforementioned vehicle, the control method comprising:

[0275] T3: When the display screen is in portrait mode, control the display screen to rotate to landscape mode. In portrait mode, the width direction of the display screen is consistent with the width direction of the vehicle; in landscape mode, the length direction of the display screen is consistent with the width direction of the vehicle.

[0276] T4: When the display screen is in landscape mode, control the display screen to move horizontally along the width of the vehicle to the preset position.

[0277] Please combine Figure 16 According to a sixth aspect of this application, this disclosure provides a control method for a drive mechanism, applied to the aforementioned vehicle, the control method comprising:

[0278] T5: When the display screen is in landscape mode, control the display screen to rotate to portrait mode. In portrait mode, the width direction of the display screen is consistent with the width direction of the vehicle; in landscape mode, the length direction of the display screen is consistent with the width direction of the vehicle.

[0279] T6: When the display screen is in portrait mode, control the display screen to move horizontally along the height of the vehicle to the preset position.

[0280] Please combine Figure 17 According to the seventh aspect of this application, this disclosure provides a control method for a drive mechanism, applied to the aforementioned vehicle, the control method comprising:

[0281] S1: When the display screen is in landscape mode, control the display screen to move along the width direction of the vehicle to a preset position. In landscape mode, the length direction of the display screen is consistent with the width direction of the vehicle.

[0282] S2: Control the display screen to rotate to portrait mode, wherein the width direction of the display screen is consistent with the width direction of the vehicle in portrait mode.

[0283] In these embodiments, when the display screen 10 is in landscape mode, it is controlled to translate along the width of the vehicle to a preset position, which can be a position close to the driver's seat. Since the driver is in the driver's seat, the display screen can be translated along the width of the vehicle, bringing it closer to the driver, facilitating information interaction between the display screen and the driver, and improving driving safety.

[0284] After the display screen 10 is moved to a preset position close to the driver, the display screen 10 is controlled to rotate to a portrait mode. In the portrait mode, the width direction of the display screen 10 is consistent with the width direction of the vehicle, which makes it easier for the driver to view the display screen 10.

[0285] By first translating the display screen 10, the display screen 10 is moved along the width direction of the vehicle to a preset position. Then, by rotating the display screen 10, the display screen 10 is switched from a horizontal screen state to a vertical screen state, so that the user can precisely control the translation distance of the display screen 10 and move it to the preset position.

[0286] Please combine Figure 18 In some embodiments, after controlling the display screen to rotate to portrait mode, the control method further includes:

[0287] S3: If the display screen is blocking the air outlet, control the display screen to move along the length of the display screen until it is away from the air outlet.

[0288] After the display screen 10 is rotated to the portrait position, the display screen may block the air outlet and obstruct the airflow. At this time, controlling the display screen to move along the length of the display screen 10 away from the air outlet can ensure that the display screen does not block the air outlet in the portrait position. This further expands the applicability of the drive mechanism of this application and also reduces the size constraints of the display screen. Larger display screens can be set without easily blocking the air outlet.

[0289] Please combine Figure 19 In some embodiments, the angle of the air outlet is adjustable, and after controlling the display screen to rotate to portrait mode, the control method further includes:

[0290] S4: Obtain the current angle parameter of the air outlet and the current adjustment parameter of the transmission mechanism. The current adjustment parameter is the parameter used by the transmission mechanism to control the display screen to be in the current position.

[0291] S5: Based on the correspondence between standard angle parameters and standard adjustment parameters, obtain the standard adjustment parameters corresponding to the current angle parameters;

[0292] S6: If the standard adjustment parameter is inconsistent with the current adjustment parameter, adjust the transmission mechanism to make the current adjustment parameter of the transmission mechanism consistent with the standard adjustment parameter.

[0293] Thus, if the standard adjustment parameter is inconsistent with the current adjustment parameter, the transmission mechanism 30 is adjusted to change the current adjustment parameter of the transmission mechanism 30 until the current adjustment parameter of the transmission mechanism 30 is consistent with the standard adjustment parameter.

[0294] The standard adjustment parameters can be the parameters of the transmission mechanism when the display screen does not obstruct the air outlet in portrait mode, which can be pre-stored.

[0295] If the standard adjustment parameters are inconsistent with the current adjustment parameters, it means that the display screen 10, which is currently in portrait mode, is likely to block the air outlet. In this case, the transmission mechanism is adjusted so that the current adjustment parameters of the transmission mechanism are consistent with the standard adjustment parameters, so that the display screen can not block the air outlet in portrait mode.

[0296] This avoids the possibility of the display screen 10 being blocked due to different airflow from the air vents when the user is using it. It also avoids the periodic adjustment action of the display screen 10 to adapt to unobstructed conditions when the user is in a hurry to use the portrait mode. The stored information obtained through pre-adjustment can help the user quickly rotate to the portrait mode that does not block the central air vent of the car air conditioner.

[0297] Please combine Figure 20 In some embodiments, after adjusting the transmission mechanism to make the current adjustment parameter of the transmission mechanism consistent with the standard adjustment parameter if the standard adjustment parameter is inconsistent with the current adjustment parameter, the control method further includes:

[0298] S7: Determine if the display screen is blocking the air vent.

[0299] Thus, if the current adjustment parameter is inconsistent with the standard adjustment parameter, the transmission mechanism 30 is adjusted to change the current adjustment parameter of the transmission mechanism 30 until the current adjustment parameter of the transmission mechanism 30 is consistent with the standard adjustment parameter. Then, it is determined whether the display screen is blocking the air outlet. That is, it is determined again whether the display screen 10 in the portrait state is blocking the air outlet, so as to ensure that the display screen 10 in the portrait state will not block the airflow of the air outlet.

[0300] Please combine Figure 18 In some embodiments, after determining whether the display screen is blocking the air outlet, the control method further includes:

[0301] S8: If the display screen blocks the air outlet, a fault code will be output.

[0302] In these embodiments, if an obstruction is detected, it may be due to some reason that the display screen in the current portrait mode still obstructs the air outlet under the pre-stored standard adjustment parameters. In this case, a fault code is output so that professionals can handle it.

[0303] The distance between the slider 375 and the stud 3717 determines the distance by which the transmission mechanism 30 drives the display screen to move horizontally. This distance is changed primarily by altering the extension length of the stud 3717. A longer extension of the stud 3717 towards the slider 375 results in a smaller distance between them, while a shorter extension results in a larger distance. This distance further determines the horizontal movement distance of the display screen 10, ensuring that it does not obstruct the air outlet after moving a certain distance. It's easy to understand that as the screen size increases, assuming the distance between the air vent and the center of rotation of the screen remains constant, the screen will obstruct the air vent more severely in portrait mode. This means the screen needs to move upwards a longer distance, resulting in a greater required translational distance for the screen 10. Consequently, the transmission mechanism 30 will move the screen a greater distance, increasing the distance between the slider 375 and the stud 3717, and also increasing the distance between the first limiting wall 3714 and the second limiting wall 3715. The distance between the slider 375 and the stud 3717 can be adjusted according to the actual situation.

[0304] The distance between the slider 375 and the stud 3717 is related to the degree of obstruction of the air outlet by the display screen. Generally, the distance between the rotation center of different sizes of display screens and the air outlet remains unchanged. Therefore, in order to adapt to different sizes of display screens, it is necessary to make variable adjustments to the distance the display screen moves upward, that is, the distance the second rack 35 and the slider 375 driven by it move.

[0305] In some examples, when the airflow from the central air vent 3 of the car's air conditioning system is at its upper limit, the obstruction of the airflow by the display screen 10 will become more severe. In this case, the display screen 10 needs to be moved upward a greater distance, that is, the distance between the stud 3717 and the slider 375 needs to be greater. This requires controlling the rotation of the stud 3717 to control its length. After the size of the display screen 10 is determined, when it is installed on the vehicle, the variable adjustment mechanism needs to be calibrated in advance or after a fault code is reported.

[0306] In some embodiments, the step of determining whether the display screen is blocking the air vent includes:

[0307] S81: When the display is in landscape mode, obtain the first temperature Tw of the air outlet and the second temperature Th of the display;

[0308] S82: Obtain the first temperature difference Δh between the first temperature Tw and the second temperature Th;

[0309] S83: Control the display screen 10 to rotate to portrait mode;

[0310] S84: Obtain the third temperature Ts of the display screen;

[0311] S85: Obtain the second temperature difference Δs between the third temperature Ts and the first temperature Tw;

[0312] S86: If the difference between the first temperature difference Δh and the second temperature difference Δs is less than the first threshold, then it is determined that the display screen does not block the air outlet.

[0313] S87: If the difference between the first temperature difference Δh and the second temperature difference Δs is not less than the first threshold, then it is determined that the display screen is blocking the air outlet.

[0314] In these embodiments, the above steps can be used to easily determine whether the display screen is blocking the air outlet.

[0315] In some embodiments, determining whether the display screen is blocking the air vent is mainly done by identifying the temperature sensor mounted on the back of the display screen 10. In some examples, S81: When the display screen is in landscape mode, the first temperature Tw of the air vent and the second temperature Th of the display screen are obtained. This can be done after receiving a command to rotate the display screen from landscape to portrait mode, reading the first temperature Tw of the air vent 3, then reading the second temperature Th when the display screen is in landscape mode, and using the difference Δh between the second temperature Th and the first temperature Tw. Th can be obtained by a temperature sensor arranged on the rear shell of the display screen 10, and Tw can be obtained by retrieving in-vehicle air conditioning temperature monitoring information.

[0316] Then, the instruction to rotate from landscape to portrait mode is executed. S83: Control the display screen 10 to rotate to the portrait mode. After the display screen 10 rotates to the portrait mode, read the third temperature Ts when the display screen 10 is in the portrait mode, and obtain the second temperature difference Δs between the third temperature Ts and the first temperature Tw. Then compare the closeness of Δh and Δs to determine whether there is obstruction. When the difference between Δh and Δs is within a certain error range, it can be determined that the display screen 10 is not obstructed in the portrait mode. In some embodiments, S86: If the difference between the first temperature difference Δh and the second temperature difference Δs is less than the first threshold, it is determined that the display screen is not obstructing the air outlet; S87: If the difference between the first temperature difference Δh and the second temperature difference Δs is not less than the first threshold, it is determined that the display screen is obstructing the air outlet. In some examples, when the difference between Δh and Δs is less than or equal to 5 degrees Celsius, it is considered that the display screen 10 is not obstructed in the portrait mode.

[0317] In some embodiments, when the display screen is in landscape mode, before controlling the display screen 10 to translate along the width direction of the vehicle to a preset position, the control method further includes:

[0318] S8: Obtain the angle parameters and adjustment parameters corresponding to different angles of the air outlet;

[0319] S9: Store the angle parameter and the adjustment parameter as standard angle parameter and standard adjustment parameter.

[0320] The stored information can be pre-adjusted to help users quickly rotate the screen to a vertical position that does not obstruct the central air vent of the car's air conditioning system. This avoids the possibility of the display screen 10 being obstructed due to different airflow from the vents when the user is using it. It also avoids the periodic adjustment of the display screen 10 to adapt to unobstructed conditions when the user is in a hurry to use the vertical screen.

[0321] When the display is in landscape mode, after receiving a user's command to rotate to portrait mode, the angle of the air outlet 3, which is also the angle of the damper, can be read. This allows the acquisition of angle parameters and adjustment parameters corresponding to different angles of the air outlet 3 or the damper. The angle parameter is the angle of the air outlet 3 or the angle of the damper. The adjustment parameter is related to the distance between the slider 375 and the stud 3717, mainly depending on the length of the stud 3717. The longer the stud 3717 extends towards the slider 375, the smaller the distance between the slider 375 and the stud 3717. The shorter the stud 3717 extends towards the slider 375, the larger the distance between the slider 375 and the stud 3717.

[0322] For the central air vent 3 of the car air conditioning system with electrically controlled damper, the angle parameters and adjustment parameters can be obtained by reading the rotation angle of the motor that drives the damper. For the central air vent of the car air conditioning system with manually controlled damper, the angle parameters and adjustment parameters can be obtained by the temperature sensor located on the back of the display screen 10.

[0323] The airflow direction can be changed by adjusting the angle of the damper 2 at the air outlet 3, thereby determining the adjustment parameters of the transmission mechanism 30 when the display screen 10 is in portrait mode for different damper angles. Specifically, the adjustment parameters can be the offset of the stud 3717 under different damper angles, i.e., different angle parameters, and are stored in the central controller. The offset of the stud 3717 can be specifically calculated as the thread lead divided by the thread pitch. The movement of the stud 3717 can be achieved by driving the thread to rotate via a motor.

[0324] In this embodiment, the display screen will not block the airflow of the vehicle's air vent 3 when in portrait mode, and the display screen 10 can also be easily moved along the side closer to the driver.

[0325] When the driver has a need for relevant information interaction, the display screen 10 may not be able to meet the needs due to its placement or size. In this case, it can be resolved by moving the screen towards the driver.

[0326] In the description of this application, the terms "first" and "second" 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. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0327] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0328] The embodiments, implementation methods, and related technical features of this application can be combined and substituted for each other without conflict.

[0329] The above are merely preferred embodiments of this application and are not intended to limit this application in any way. Any modifications, equivalent changes, or alterations made to the above embodiments based on the technical essence of this application without departing from the scope of the technical solution of this application shall still fall within the scope of the technical solution of this application.

Claims

1. A driving mechanism for driving a display screen, characterized in that, The drive mechanism includes: A transmission mechanism for connecting the display screen, the transmission mechanism having a translational state and a rotational state; A switching mechanism is connected to the transmission mechanism, and the switching mechanism is used to switch the transmission mechanism between a translational state and a rotational state.

2. The driving mechanism as described in claim 1, characterized in that, The transmission mechanism includes a first transmission component and a second transmission component, wherein the first transmission component is used to receive external power and the second transmission component is used to connect to the display screen; the switching mechanism includes a limiting component. The limiting component enables the first transmission member and the second transmission member to be locked or moved relative to each other. When the first transmission member and the second transmission member are locked relative to each other, the transmission mechanism is in a rotating state. When the first transmission member and the second transmission member are moved relative to each other, the transmission mechanism is in a translating state.

3. The driving mechanism as described in claim 2, characterized in that, The first transmission component includes a transmission gear, and the second transmission component includes a first rack; the transmission gear and the first rack mesh; the first rack is used for fixed connection with the display screen; When the transmission mechanism is in a translational state, the transmission gear can rotate and drive the first rack to translate, so that the first rack drives the display screen to translate. When the transmission mechanism is in a rotational state, the transmission gear can drive the first rack to rotate, so that the first rack drives the display screen to rotate.

4. The driving mechanism as described in claim 3, characterized in that, The drive mechanism further includes a first power component, which is drivenly connected to the transmission gear.

5. The driving mechanism as described in claim 3, characterized in that, The second transmission component further includes a second rack that meshes with the transmission gear, the second rack being located on the side of the transmission gear opposite to the first rack; When the transmission mechanism is in a translational state, the transmission gear rotates to drive the first rack and the second rack to translate in opposite directions respectively; When the transmission mechanism switches from the translational state to the rotational state, the second rack locks relative to the transmission gear, so that the first rack locks relative to the transmission gear.

6. The driving mechanism as described in claim 5, characterized in that, The limiting component is used to limit the second rack so that the second rack is locked relative to the transmission gear.

7. The driving mechanism as described in claim 6, characterized in that, The limiting component includes a first limiting member, a guide rail, and a sliding member. The first limiting member is fixed to the guide rail, the guide rail is used to fix the display screen, and the sliding member is slidably connected to the guide rail. When the transmission mechanism is in a translational state, the second rack abuts against the sliding member, so that the second rack drives the sliding member to move toward the first limiting member. When the sliding member abuts against the first limiting member, the first limiting member limits the second rack so that the second rack is locked relative to the transmission gear.

8. The driving mechanism as described in claim 7, characterized in that, The second rack includes a second tooth and a mating part connected to each other. The second tooth meshes with the transmission gear. The mating part is also provided with a sliding groove. The end of the slider that is away from the display screen is located in the sliding groove. When the transmission mechanism is in a translational state, the sliding member moves along the sliding groove toward the direction of the first limiting member.

9. The driving mechanism as described in claim 7, characterized in that, The switching mechanism further includes a first elastic element, which abuts against the sliding element and the first limiting element respectively.

10. The driving mechanism as described in claim 7, characterized in that, The guide rail extends along the length of the first rack. The first limiting member includes a mounting part and an adjusting part that are movably connected. The adjusting part includes a second limiting wall. The mounting part and the second limiting wall are arranged at intervals along the length of the first rack. The mounting part is mounted on the guide rail. The second limiting wall is used to abut against the sliding member. The second limiting wall can move in a direction closer to or farther from the mounting part to change the distance between the mounting part and the second limiting wall.

11. The driving mechanism as described in claim 10, characterized in that, The mounting portion has a first limiting wall on the side facing the sliding member; The adjustment part further includes a stud, the side of the stud facing the slider having a second limiting wall, and the portion of the stud away from the slider being threadedly connected to the mounting part, so that the distance between the first limiting wall and the second limiting wall is adjustable.

12. The driving mechanism as described in claim 11, characterized in that, The limiting component further includes a second power component, which is disposed on the side of the mounting portion away from the sliding member. The portion of the stud away from the sliding member passes through the mounting portion and is drivenly connected to the second power component.

13. The driving mechanism as described in claim 3, characterized in that, The switching mechanism further includes a second limiting mechanism, which is used to limit the rotation of the first rack.

14. The driving mechanism as described in claim 13, characterized in that, The second limiting mechanism includes a movable second limiting member that can move to a side of the first rack away from the transmission gear to restrict the rotation of the first rack.

15. The driving mechanism as described in claim 14, characterized in that, The second limiting mechanism further includes a housing, and the second limiting member is movably connected to the housing. The housing is provided with a first receiving cavity and an opening communicating with the first receiving cavity. The second limiting member has a first state and a second state on the housing; When the second limiting member is in the first state, the second limiting member is located inside the first receiving cavity; When the second limiting member is in the second state, at least a portion of the second limiting member extends out of the first receiving cavity from the opening, such that at least a portion of the second limiting member is located on the side of the first rack away from the transmission gear.

16. The driving mechanism according to claim 15, characterized in that, A third limiting part is provided on the housing near the opening. The second limiting member includes a narrow end and a wide end, which are arranged along the arrangement direction of the opening and the first receiving cavity. When the second limiting member is in the second state, the narrow end extends out of the first receiving cavity from the opening, and the third limiting part is used to abut against the wide end to limit the distance by which the narrow end extends out of the first receiving cavity.

17. The driving mechanism according to claim 15, characterized in that, The second limiting mechanism further includes a second elastic element, which is connected to the second limiting element and the housing respectively, and is used to push the second limiting element out of the first receiving cavity.

18. The driving mechanism according to claim 16, characterized in that, The second limiting mechanism further includes a magnetic component and a power assembly. The magnetic component is connected to the second limiting component, and the power assembly is used to generate a magnetic field after being energized, so that the second limiting component retracts into the first receiving cavity.

19. The driving mechanism according to claim 13, characterized in that, The number of second limiting mechanisms is multiple, and the first rack has multiple positions. Each second limiting mechanism is used to restrict the rotation of the first rack when the first rack is in the corresponding position.

20. The driving mechanism according to claim 16, characterized in that, The narrow end includes a wedge-shaped wall surface. When the transmission mechanism is in a rotating state, the first rack is used to press against the wedge-shaped wall surface so that the second limiting member is in a second state.

21. The driving mechanism according to claim 20, characterized in that, When the transmission mechanism is in a translational state, the wedge-shaped wall is located on the side of the second limiting member away from the transmission gear.

22. The driving mechanism according to claim 20, characterized in that, The narrow end also includes a second wall surface, which is disposed opposite to the wedge-shaped wall surface. When the transmission mechanism is in a translational state, the second wall surface is used to restrict the rotation of the first rack.

23. The driving mechanism according to claim 4, characterized in that, The transmission gear includes a first gear and a second gear that mesh, the second gear being driven and connected to the first power component, the first gear meshing with the first rack, and the number of teeth of the second gear being less than the number of teeth of the first gear.

24. The drive mechanism according to any one of claims 1 to 23, characterized in that, The transmission mechanism includes a second gear, a first rack, and a second rack. The first rack and the second rack are located on opposite sides of the second gear and mesh with the second gear, so that the second gear can drive the first rack and the second rack to move in opposite directions. The switching mechanism includes a limiting component, which includes a first follower and a second follower. The first follower is connected to the display screen and can move with the display screen, and the second follower is connected to the second rack and can move with the second rack. When the first follower and the second follower are not in contact, the transmission mechanism is in a translational state; when the first follower and the second follower are in contact, the transmission mechanism is in a rotational state.

25. The driving mechanism according to claim 24, characterized in that, The first follower includes a first limiting member, and the second follower includes a sliding member. When the transmission mechanism is in a translational state, the second rack drives the sliding member to move toward the first limiting member. When the sliding member abuts against the first limiting member, the first limiting member limits the second rack so that the second rack is locked relative to the second gear.

26. The driving mechanism according to claim 25, characterized in that, The limiting component further includes a guide rail for fixing to the display screen. The first limiting member is fixed to the guide rail, and the sliding member is slidably connected to the guide rail. When the transmission mechanism is in a translational state, the second rack abuts against the sliding member, so that the second rack drives the sliding member to move along the guide rail toward the direction closer to the first limiting member.

27. The drive mechanism according to any one of claims 1 to 23, characterized in that, The drive mechanism also includes an outer cover for mounting on the back of the display screen. The outer cover has a receiving cavity, and the transmission mechanism is located within the receiving cavity.

28. A display device, characterized in that, The device includes the driving mechanism and display screen as described in any one of claims 1-27, wherein the display screen is connected to the driving mechanism, and when the transmission mechanism is in a translational state, the transmission mechanism can drive the display screen to translate; when the transmission mechanism is in a rotational state, the transmission mechanism can drive the display screen to rotate.

29. The display device according to claim 28, characterized in that, The transmission mechanism includes a first transmission component and a second transmission component. The first transmission component is used to receive external power, and the second transmission component is fixedly connected to the display screen. The switching mechanism includes a limiting component. The limiting component enables the first transmission member and the second transmission member to be locked or moved relative to each other. When the first transmission member and the second transmission member are locked relative to each other, the transmission mechanism is in a rotating state. When the first transmission member and the second transmission member are moved relative to each other, the transmission mechanism is in a translating state.

30. The display device according to claim 29, characterized in that, The first transmission component includes a transmission gear, and the second transmission component includes a first rack; the transmission gear and the first rack mesh; the first rack is fixedly connected to the display screen; When the transmission mechanism is in a translational state, the transmission gear rotates and drives the first rack to translate, so that the first rack drives the display screen to translate. When the transmission mechanism is in a rotational state, the transmission gear drives the first rack to rotate, so that the first rack drives the display screen to rotate.

31. The display device according to claim 28, characterized in that, The drive mechanism also includes an outer cover, which is installed on the back of the display screen. The outer cover has a receiving cavity, and the transmission mechanism is located inside the receiving cavity.

32. The display device according to any one of claims 28 to 31, characterized in that, The transmission mechanism includes a second gear, a first rack, and a second rack. The first rack and the second rack are located on opposite sides of the second gear and mesh with the second gear, so that the second gear can drive the first rack and the second rack to move in opposite directions. The switching mechanism includes a limiting component, which includes a first follower and a second follower. The first follower is connected to the display screen and can move with the display screen, and the second follower is connected to the second rack and can move with the second rack. When the first follower and the second follower are not in contact, the transmission mechanism is in a translational state; when the first follower and the second follower are in contact, the transmission mechanism is in a rotational state.

33. The display device according to claim 32, characterized in that, The first follower includes a first limiting member, and the second follower includes a sliding member. When the transmission mechanism is in a translational state, the second rack drives the sliding member to move toward the first limiting member. When the sliding member abuts against the first limiting member, the first limiting member limits the second rack so that the second rack is locked relative to the second gear.

34. The display device according to claim 33, characterized in that, The limiting component further includes a guide rail, which is fixed to the display screen. The first limiting member is fixed to the guide rail, and the sliding member is slidably connected to the guide rail. When the transmission mechanism is in a translational state, the second rack abuts against the sliding member, so that the second rack drives the sliding member to move along the guide rail toward the direction close to the first limiting member.

35. A vehicle, characterized in that, It includes the driving mechanism as described in any one of claims 1-27 or the display device as described in any one of claims 28-34.

36. The vehicle according to claim 35, characterized in that, The vehicle also includes an air vent, and the display screen is positioned close to the air vent. The display screen has a landscape orientation, and when the display screen is in this orientation, along the length of the vehicle, the projection of the air vent is outside the projection area of ​​the display screen; and / or The display screen has a portrait orientation, and when the display screen is in the landscape orientation, the projection of the air vent is outside the projection area of ​​the display screen along the length of the vehicle.

37. A control method for a drive mechanism, characterized in that, Applied to the vehicle as described in claim 35 or claim 36, the control method includes: When the display screen is in portrait mode, the display screen is controlled to move horizontally along the height direction of the vehicle to a preset position. In portrait mode, the width direction of the display screen is consistent with the width direction of the vehicle. Control the display screen to rotate to a landscape mode, wherein in the landscape mode, the length direction of the display screen is consistent with the width direction of the vehicle.

38. A control method for a drive mechanism, characterized in that, Applied to the vehicle as described in claim 35 or claim 36, the control method includes: When the display screen is in portrait mode, it is controlled to rotate to landscape mode. In portrait mode, the width direction of the display screen is consistent with the width direction of the vehicle; in landscape mode, the length direction of the display screen is consistent with the width direction of the vehicle. When the display screen is in landscape mode, control the display screen to move along the width of the vehicle to a preset position.

39. A control method for a drive mechanism, characterized in that, Applied to the vehicle as described in claim 35 or claim 36, the control method includes: When the display screen is in landscape mode, it is controlled to rotate to portrait mode. In portrait mode, the width direction of the display screen is consistent with the width direction of the vehicle; in landscape mode, the length direction of the display screen is consistent with the width direction of the vehicle. When the display screen is in portrait mode, control the display screen to move horizontally along the height direction of the vehicle to a preset position.

40. A control method for a drive mechanism, characterized in that, Applied to the vehicle as described in claim 35 or claim 36, the control method includes: When the display screen is in landscape mode, it is controlled to move along the width direction of the vehicle to a preset position. In landscape mode, the length direction of the display screen is consistent with the width direction of the vehicle. Control the display screen to rotate to portrait mode, wherein in portrait mode, the width direction of the display screen is consistent with the width direction of the vehicle.

41. The control method for the drive mechanism according to any one of claims 37 to 40, characterized in that, After controlling the display screen to rotate to portrait mode, the control method further includes: If the display screen is blocking the air outlet, then control the display screen to move along the length of the display screen to move away from the air outlet.

42. The control method for the drive mechanism according to any one of claims 37 to 40, characterized in that, The angle of the air outlet is adjustable. After controlling the display screen to rotate to portrait mode, the control method further includes: Obtain the current angle parameters of the air outlet and the current adjustment parameters of the transmission mechanism. The current adjustment parameters are the parameters used by the transmission mechanism to control the display screen to be in the current position. Based on the correspondence between standard angle parameters and standard adjustment parameters, obtain the standard adjustment parameters corresponding to the current angle parameters; If the standard adjustment parameter is inconsistent with the current adjustment parameter, the transmission mechanism is adjusted so that the current adjustment parameter of the transmission mechanism is consistent with the standard adjustment parameter.

43. The control method for the drive mechanism according to claim 42, characterized in that, If the standard adjustment parameter is inconsistent with the current adjustment parameter, the transmission mechanism is adjusted to make the current adjustment parameter of the transmission mechanism consistent with the standard adjustment parameter. The control method further includes: Determine if the display screen is blocking the air vent.

44. The control method for the drive mechanism according to claim 43, characterized in that, After determining whether the display screen is blocking the air outlet, the control method further includes: If the display screen blocks the air outlet, a fault code will be output.

45. The control method for the drive mechanism according to claim 43, characterized in that, The step of determining whether the display screen is blocking the air outlet includes: When the display is in landscape mode, obtain the first temperature of the air outlet and the second temperature of the display; Obtain the first temperature difference between the first temperature and the second temperature; Control the display screen to rotate to portrait mode; Obtain the third temperature of the display screen; Obtain the second temperature difference between the third temperature and the first temperature; If the difference between the first temperature difference and the second temperature difference is less than the first threshold, it is determined that the display screen does not block the air outlet. If the difference between the first temperature difference and the second temperature difference is not less than the first threshold, then it is determined that the display screen is blocking the air outlet.

46. ​​The control method for the drive mechanism according to claim 42, characterized in that, When the display screen is in landscape mode, before controlling the display screen to move along the width direction of the vehicle to a preset position, the control method further includes: Obtain the angle parameters and adjustment parameters corresponding to different angles of the air outlet; The angle parameters and the adjustment parameters are stored and used as standard angle parameters and standard adjustment parameters.

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