Rotating shaft mechanism, display equipment and vehicle

Abstract

The utility model provides a rotating shaft mechanism, display equipment and a vehicle. The rotating shaft mechanism comprises a base, a rotating shaft and an elastic piece, the rotating shaft is rotationally connected to the base, and the rotating shaft is used for being fixedly connected with an optical element; the elastic piece comprises a fixing part, a bending part and a contact part, the fixing part is fixedly connected to the base, the contact part elastically abuts against the rotating shaft, and the bending part is connected between the fixing part and the contact part in a bending mode and abuts against the rotating shaft. At least part of the bending part is located on the side, away from the rotating shaft, of the contact part. According to the technical scheme, the cost can be reduced, and the market competitiveness of the display equipment applying the rotating shaft mechanism is improved.

Description

Technical Field

[0001] The present application relates to the field of vehicle-mounted displays, and in particular to a rotating shaft mechanism, a display device, and a vehicle. Background Art

[0002] A display device is a device that displays images, videos, and text for users to view. For example, a display device can be a heads-up display (HUD), a projector, or a near-eye display. During use, a display device requires a hinge mechanism to rotate its internal optical components to adjust their angles, adapting to varying eye heights, varying input image focal lengths, and switching between operating and non-operating states. However, current hinge mechanisms are relatively expensive, making it difficult to enhance the market competitiveness of display devices using these mechanisms. Utility Model Content

[0003] The present application provides a hinge mechanism, a display device, and a vehicle, which can reduce costs and improve the market competitiveness of the display device using the hinge mechanism.

[0004] In a first aspect, the present application provides a rotating shaft mechanism, comprising:

[0005] base;

[0006] a rotating shaft, the rotating shaft being rotatably connected to the base, the rotating shaft being used for being fixedly connected to the optical element; and

[0007] An elastic member includes a fixed portion, a bent portion and a contact portion, wherein the fixed portion is fixedly connected to the base, the contact portion elastically abuts against the rotating shaft, the bent portion is bent and connected between the fixed portion and the contact portion, and presses the contact portion against the rotating shaft, and at least part of the bent portion is located on the side of the contact portion away from the rotating shaft.

[0008] It's understandable that because the rotating shaft can be used to securely connect to the optical element, when the rotating shaft rotates relative to the base, the optical element can be driven by the rotating shaft and rotate synchronously with the base. In other words, the rotating shaft and the optical element can be linked. Therefore, when designing the rotational performance of the optical element, the rotational performance of the rotating shaft connected to it is more important. Considering the rotational requirements of the rotating shaft relative to the base, the rotating shaft and base should not be too tightly connected during assembly, preventing the rotating shaft from rotating, nor too loosely connected, causing the rotating shaft to become loose from the base.

[0009] Therefore, in the embodiment of the present application, by having the fixing portion fixedly connected to the base, a fixed connection between the elastic member and the base can be achieved. By having the contact portion elastically abut against the rotating shaft, when the rotating shaft is affected by an external force and vibrates, the elastic member can not only resist the vibration force and prevent the transmission of the vibration force, but also consume part of the vibration energy through its own elastic deformation, thereby reducing the damage to the rotating shaft mechanism caused by the vibration, reducing the fluctuation of the impact force or torque, protecting the connected rotating shaft from damage, and effectively transmitting the rotating shaft power, so that the elastic member and the rotating shaft are in close contact. By positioning at least a portion of the bent portion on the side of the contact portion facing away from the rotating shaft, and by bending the bent portion between the fixed portion and the contact portion, the bent portion can serve as a power source for the contact portion, continuously applying a force to the contact portion to stably press the contact portion against the rotating shaft. This allows the contact portion to stably and continuously apply an elastic downward pressure to the rotating shaft, with a more stable elastic force and a wider range of adjustment. This prevents loosening between the contact portion and the rotating shaft, ensuring the stability and reliability of the contact portion during operation, and facilitating control of deformation of the elastic member and eliminating clearance between the elastic member and the rotating shaft. In other words, by providing the bent portion, the bent portion can provide a continuous driving force for the contact and engagement between the contact portion and the rotating shaft, and the contact portion can be pressed against the rotating shaft without the need for additional structural components.

[0010] In other words, by providing an elastic member, the bent portion can be used to apply a certain amount of pressure to the contact point between the contact portion and the rotating shaft, maintaining close contact between the contact portion and the rotating shaft. When the external force applied to the rotating shaft varies within a certain range, the contact fit between the contact portion and the rotating shaft allows the elastic member to maintain resistance to the force while also adapting to changes in the external force through its own elastic deformation, thus preventing damage to the rotating shaft due to the rigid connection. The elastic force generated by the pre-deformation of the elastic member and transmitted to the rotating shaft enables smooth rotation of the rotating shaft, reduces loosening and wear at the interface between the elastic member and the rotating shaft, eliminates vibration, noise, and jitter caused by tolerance clearance between the elastic member and the rotating shaft, and effectively prevents the rotating shaft and the optical element connected to the rotating shaft from moving and generating noise during rotation. This helps to make the rotating shaft more stable during rotation, enhance the stability and wear resistance of the connection between the rotating shaft and the elastic member, improve the imaging quality of the optical element, and enhance the user experience.

[0011] Furthermore, due to the simple structure of the elastic member, processing and manufacturing of the elastic member is relatively simple. This significantly reduces the manufacturing cost of the hinge mechanism while still meeting the hinge mechanism's high modulus, low wear, and low load performance requirements, thereby improving the market competitiveness of display devices using the hinge mechanism. For example, the cost of the hinge mechanism can be reduced by approximately 90%.

[0012] In a possible implementation manner, the bending portion and the contact portion are sequentially arranged in the length direction of the elastic member, the bending portion is bent in a direction away from the rotating shaft, and the contact portion is in interference fit with the rotating shaft.

[0013] It is understood that by bending the bent portion in a direction away from the rotating shaft and arranging it in sequence with the contact portion in the longitudinal direction of the elastic member, the bent portion can be arranged to the side of the contact portion, so that the bent portion and the contact portion are adjacent and staggered. In this way, the bending shape of the bent portion can be fully utilized to better transmit the force to the contact portion, so that the contact portion continuously presses against the rotating shaft, eliminating the matching gap between the rotating shaft and the base.

[0014] Furthermore, since the elastic part is in elastic contact with the rotating shaft, when vibrations and shaking of varying sizes are generated due to the movement of the vehicle, the elastic part can effectively prevent the vibrations and shaking of the vehicle from being transmitted to the optical element through the vehicle body and the rotating shaft, thereby causing the imaging position of the optical element to jitter and shift, affecting the display of the image. This is beneficial to ensuring that the image projected by the optical element is clear and effective, meeting the high-definition requirements of the display device, and improving the user experience.

[0015] In a possible implementation manner, the contact portion and a portion of the bent portion are stacked in a thickness direction of the elastic member, and the contact portion is in interference fit with the rotating shaft.

[0016] It can be understood that by stacking the contact portion and the partially bent portion in the thickness direction of the elastic member, the partially bent portion can be bent above the contact portion, so that the bent portion located above the contact portion can present a spring-like shape, so as to make full use of the elastic properties and gravity of the elastic member, and apply downward pressure to the contact portion, so that the contact portion and the rotating shaft can maintain close contact.

[0017] Furthermore, since the elastic part is in elastic contact with the rotating shaft, when vibrations and shaking of varying sizes are generated due to the movement of the vehicle, the elastic part can effectively prevent the vibrations and shaking of the vehicle from being transmitted to the optical element through the vehicle body and the rotating shaft, thereby causing the imaging position of the optical element to jitter and shift, affecting the display of the image. This is beneficial to ensuring that the image projected by the optical element is clear and effective, meeting the high-definition requirements of the display device, and improving the user experience.

[0018] In a possible implementation manner, the contact portion is bent toward the rotation axis.

[0019] As can be understood, by bending the contact portion toward the rotating shaft, the connection between the bent portion and the contact portion forms an arc-shaped transition, dispersing the stress on the contact portion and preventing the root of the contact portion (i.e., the portion where the contact portion contacts the rotating shaft) from breaking due to excessive stress, thereby improving reliability. Furthermore, because the bending direction of the contact portion is opposite to that of the bent portion, the contact portion and the bent portion form a two-stage anti-deformation structure, further optimizing the stress distribution on the elastic member and reducing stress concentration, thereby lowering the risk of elastic member failure and improving the operational reliability of the elastic member.

[0020] Alternatively, the extending direction of the contact portion is parallel to the extending direction of the fixing portion.

[0021] In a possible implementation, the fixing portion includes a first section and a second section, the first section and the second section are connected to the base at intervals and are respectively located on both sides of the rotating shaft in a radial direction;

[0022] The bending portion and the contact portion are both located in the gap area between the first section and the second section, one end of the bending portion is connected to the first section, and the other end of the bending portion is connected to the contact portion, the bending portion bends and extends between the first section and the contact portion, and the end of the contact portion away from the bending portion is connected to the second section.

[0023] It is understood that by having the fixing portion comprise a first section and a second section, and having both the first section and the second section connected to the base, the stability and reliability of the connection between the fixing portion and the base can be enhanced. Furthermore, by sequentially connecting the bent portion and the contact portion between the first section and the second section, the elasticity of the elastic member can be utilized to create a curved extension of the elastic member as a whole, which facilitates better application of force to the rotating shaft and improves reliability.

[0024] In a possible implementation manner, the contact portion contacts the rotating shaft along a circumferential direction of the rotating shaft, or the contact portion contacts the rotating shaft along an axial direction of the rotating shaft.

[0025] It can be understood that by making the contact portion contact the rotating shaft along the circumferential direction or axial direction of the rotating shaft, the diversity of the relative position changes between the elastic member and the rotating shaft can be increased, so that the elastic member can have a larger or smaller contact area with the rotating shaft according to actual application requirements, and has greater flexibility.

[0026] In a possible embodiment, the rotating shaft mechanism further includes a shaft sleeve, the shaft sleeve being fixedly connected to the base and rotatably connected to the rotating shaft, the shaft sleeve being provided with a through hole, the through hole penetrating the shaft sleeve along a thickness direction of the shaft sleeve;

[0027] The fixing portion is fixedly connected to the sleeve, the fixing portion and the bending portion are both located on the side of the sleeve away from the base, and at least part of the contact portion is located in the through hole and contacts the rotating shaft located in the through hole.

[0028] It's understandable that when the rotating shaft is forced upward by external forces, the impact on the elastic member is strong, making it susceptible to fracture at the connection between the elastic member and the base (i.e., the connection where the elastic member and base are locked by the locking member). Therefore, by adding a sleeve and positioning a portion of the sleeve between the fixed portion of the elastic member and the base, the movement of the rotating shaft toward the elastic member can be effectively restrained, dissipating the gravitational force on the elastic member. This prevents the elastic member from yielding and fracturing due to the entire external force acting on the rotating shaft acting on the elastic member (if the elastic member deforms too much, it will exceed its recovery limit and become unable to reset).

[0029] In a possible implementation manner, the base is provided with a first rotation groove, and the shaft sleeve is provided with a second rotation groove, and the second rotation groove cooperates with the first rotation groove to accommodate the rotating shaft and limit the rotating shaft between the base and the shaft sleeve.

[0030] It is understood that by providing a first rotation groove on the base, a certain amount of space can be provided to accommodate part of the rotating shaft while ensuring the structural strength of the base, which is beneficial to improving the space utilization within the rotating shaft mechanism. By providing a second rotation groove on the sleeve, a certain amount of space can be provided to accommodate part of the rotating shaft while ensuring the structural strength of the sleeve, which is beneficial to improving the space utilization within the rotating shaft mechanism. By cooperating the second rotation groove with the first rotation groove of the base to limit the rotating shaft, the limiting rotating shaft can be engaged from both the upper and lower sides of the rotating shaft to sandwich the rotating shaft between the base and the sleeve, further improving the installation stability and reliability of the rotating shaft.

[0031] In one possible embodiment, a gap is provided between the inner wall of the first rotation groove and the outer surface of the rotating shaft. As will be appreciated, since the rotating shaft is a rotating component, a certain installation gap is reserved between the rotating shaft and the first rotation groove of the base to enable the rotating shaft to rotate smoothly within the first rotation groove of the base during operation. Furthermore, since the elastic member also presses against the rotating shaft during rotation, movement of the rotating shaft can be effectively prevented, thereby improving reliability.

[0032] Alternatively, the inner wall of the first rotation groove abuts the outer surface of the rotation shaft. It will be appreciated that by abutting the outer surface of the rotation shaft against the inner wall of the first rotation groove of the base, the rotation shaft and the first rotation groove of the base can be brought into zero-match contact. Furthermore, when the drive motor for rotating the optical element has sufficient thrust, the rotation shaft connected to the optical element can be made to rotate relative to the base even if there is zero-match contact between the rotation shaft and the first rotation groove of the base.

[0033] A gap exists between the inner wall of the second rotation groove and the outer surface of the rotating shaft. As will be appreciated, since the rotating shaft is a rotating component, a certain installation gap is reserved between the rotating shaft and the second rotation groove of the sleeve to enable the rotating shaft to rotate smoothly within the second rotation groove of the sleeve during operation. Furthermore, the elastic member also presses against the rotating shaft during rotation, effectively preventing movement of the rotating shaft during rotation and improving reliability.

[0034] Alternatively, the inner wall of the second rotation groove abuts the outer surface of the rotation shaft. It will be appreciated that by abutting the outer surface of the rotation shaft against the inner wall of the second rotation groove, the rotation shaft and the second rotation groove can be in zero-match contact. Furthermore, when the drive motor for rotating the optical element has sufficient thrust, even if the rotation shaft and the second rotation groove are in zero-match contact, the rotation shaft connected to the optical element can still rotate relative to the sleeve.

[0035] In one possible embodiment, the sleeve includes a main body and at least two retaining walls, part of the main body is located between the fixing portion and the base, the main body is provided with the through hole, at least two of the retaining walls are protruded from the surface of the main body away from the rotating shaft, and are located on both sides of the width direction of the elastic member, and at least part of the projection of the elastic member along the width direction of the elastic member falls onto at least two of the retaining walls.

[0036] It can be understood that by arranging a retaining wall on the main body, the sleeve can further play the role of blocking the lateral deformation of the elastic part along its width direction on the basis of the sleeve being able to block the deformation of the elastic part in the up and down directions, so that the sleeve can further limit the elastic part to play a secondary constraint role under vibration and impact, preventing the elastic part from fatigue fracture due to excessive deformation, and having better reliability.

[0037] In a possible implementation, the rotating shaft mechanism further includes a sleeve, which is fixedly connected to the body or the base and is located between the body and the base. The sleeve is also sleeved on the rotating shaft, and the rotating shaft can rotate relative to the sleeve.

[0038] It can be understood that by providing the sleeve, the rotating shaft can be passed through the sleeve, ensuring that the sleeve can be arranged around the outside of the rotating shaft to protect and limit the rotating shaft.

[0039] In a second aspect, the present application also provides a display device, which includes a bottom shell, an optical element and the hinge mechanism as described above, wherein the hinge mechanism is connected between the bottom shell and the optical element, and rotatably connects the optical element to the bottom shell.

[0040] In a third aspect, the present application also provides a vehicle, which includes the display device as described above. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 This is a simplified structural diagram of a vehicle provided in an embodiment of the present application;

[0042] Figure 2 is a partial structural diagram of a display device provided in an embodiment of the present application;

[0043] Figure 3 yes Figure 2 A schematic structural diagram of a curved mirror of a display device shown;

[0044] Figure 4 yes Figure 2 A partial structural diagram of a hinge mechanism of a display device shown;

[0045] Figure 5 yes Figure 4 A schematic diagram of the structure of the connection between the base and the bottom shell of the rotating shaft mechanism shown;

[0046] Figure 6 yes Figure 4 A schematic diagram of the structure of the portion of the rotating shaft mechanism where the rotating shaft is connected to the optical element;

[0047] Figure 7 yes Figure 4 A schematic structural diagram of a first structure of an elastic member of a rotating shaft mechanism shown at an angle;

[0048] Figure 8 yes Figure 4 A structural schematic diagram of the first structure of the elastic member of the rotating shaft mechanism shown in FIG. 1 from another angle;

[0049] Figure 9 yes Figure 4 A second structural diagram of the elastic member of the rotating shaft mechanism shown;

[0050] Figure 10 yes Figure 4 A third structural schematic diagram of the elastic member of the rotating shaft mechanism is shown;

[0051] Figure 11 yes Figure 4 A fourth structural schematic diagram of the elastic member of the rotating shaft mechanism shown;

[0052] Figure 12 yes Figure 2 Another partial structural schematic diagram of the hinge mechanism of the display device shown;

[0053] Figure 13 It is along Figure 12 The schematic cross-sectional view obtained by cutting along the cutting line AA shown;

[0054] Figure 14 yes Figure 12 A structural schematic diagram of a shaft sleeve of a rotating shaft mechanism shown;

[0055] Figure 15 yes Figure 12 A schematic structural diagram of the elastic member of the rotating shaft mechanism shown;

[0056] Figure 16 yes Figure 2 Another partial structural schematic diagram of the hinge mechanism of the display device is shown.

[0057] Reference numerals:

[0058] 300, vehicle; 200, display device; 310, windshield; 230, image production unit; 210, bottom housing; 220, optical element; 100, pivot mechanism; W, cavity; 2110, first side portion; 2120, second side portion; 2210, bracket; 2220, lens; H, mounting groove; 2230, first side panel; 2240, second side panel; 10, base; 20, pivot; 30, elastic member; I, central axis; 31, fixing portion; 32, folding Bend; 33, contact portion; 11, first rotating groove; 12, first positioning column; 13, blind hole; 240, reinforcing rib; 50, locking piece; 311, first positioning hole; 312, first through hole; 313, first section; 314, second section; 315, third positioning hole; 40, bushing; 41, through hole; 42, second positioning hole; 43, second through hole; 44, second positioning column; 45, second rotating groove; 46, main body; 47, retaining wall; 60, sleeve; 61, third positioning column. DETAILED DESCRIPTION

[0059] For ease of understanding, the terms involved in the embodiments of the present application are first explained.

[0060] And / or: It is just a description of the association relationship of associated objects, indicating that three relationships can exist. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone.

[0061] Multiple: refers to two or more than two.

[0062] Connection: should be understood in a broad sense. For example, A and B are connected, which can be either directly connected or indirectly connected through an intermediary.

[0063] The specific implementation of the present application will be clearly described below with reference to the accompanying drawings.

[0064] Embodiments of the present application provide a hinge mechanism, a display device, and a vehicle.

[0065] In the embodiments of the present application, a vehicle is equipped with a display device that can display images, videos, text, and other information to a user via the display device. The vehicle may include, but is not limited to, a car, an airplane, a ship, a high-speed train, a rocket, and the like. The vehicle may be an electric vehicle, a fuel-powered vehicle, or a hybrid vehicle. For example, the vehicle may be a pure electric vehicle, an extended-range electric vehicle, a hybrid electric vehicle, a fuel cell vehicle, a new energy vehicle, and the like, without strict limitation.

[0066] The following description will take a vehicle as an example to illustrate the structure of the vehicle, but it should be understood that the present invention is not limited to this.

[0067] See also Figure 1 , Figure 1 It is a schematic structural diagram of a vehicle 300 provided in an embodiment of the present application.

[0068] Vehicle 300 may include a display device 200 and a windshield 310. Display device 200 may be configured to output imaging light. Windshield 310 may be configured to reflect the imaging light from display device 200 toward the eyebox of the driver or passenger, thereby forming a virtual image in front of windshield 310. The virtual image and the driver or passenger are located on different sides of windshield 310. The eyebox is the area where the driver or passenger's eyes are located.

[0069] For example, Figure 1 As shown, the image generated by the picture generation unit (PGU) 230 passes through the optical element 220 and the windshield 310, and is reflected to the eye box of the driver or passenger. A virtual image is formed on the reverse extension line of the image formed by the driver or passenger's eye box. The virtual image is located in front of the windshield 310.

[0070] It should be noted that Figure 1 The purpose is only to schematically describe the connection relationship between the display device 200 and the windshield 310, and it does not specifically limit the connection position, specific structure and quantity of each component. The structure shown in the embodiment of the present application does not constitute a specific limitation on the vehicle 300. In other embodiments of the present application, the vehicle 300 may include Figure 1More or fewer components may be shown, or some components may be combined or separated, or the components may be arranged differently. Figure 1 The components shown can be implemented in hardware, software, or a combination of software and hardware.

[0071] In an embodiment of the present application, the display device 200 may be a HUD (Head Up Display) device. The HUD device can project image information such as current speed, navigation, instrumentation, and road conditions into the driver's field of view, allowing the driver to clearly see driving information without having to lower their head. This prevents traffic accidents caused by lowering or turning their head while driving, significantly improving driving safety and comfort. The image information projected by the HUD device is reflected by the windshield 310 to form a virtual image on the outside of the vehicle 300. Alternatively, the display device 200 may be a rear-seat projector for the vehicle. Alternatively, the display device 200 may be a headlight projection module for the vehicle. Alternatively, the display device 200 may be an onboard light field screen. Alternatively, the display device 200 may be a high and low beam integrated headlight module. Alternatively, the display device 200 may be a near-eye display (NED) device. Of course, in other embodiments, the display device 200 may also be any other device with display functionality, without strict limitation.

[0072] The structure of the display device 200 will be described in detail below by taking the display device 200 as a HUD device as an example, but it should be understood that the present invention is not limited to this.

[0073] Please refer to Figure 1 and Figure 2 , Figure 2 It is a partial structural diagram of the display device 200 provided in an embodiment of the present application.

[0074] The display device 200 may include a bottom housing 210, an optical element 220, and a hinge mechanism 100. The bottom housing 210 may serve as the main bearing member of the display device 200 and provide a certain amount of installation and accommodation space for the various components of the display device 200. The optical element 220 may be mounted on the bottom housing 210 and may rotate relative to the bottom housing 210. The hinge mechanism 100 is connected between the bottom housing 210 and the optical element 220 and is in transmission connection with the optical element 220. The hinge mechanism 100 may be used to drive the optical element 220 to rotate relative to the bottom housing 210 to meet the rotation requirements of the optical element 220. For example, the optical element 220 may be a curved reflector.

[0075] It is understood that during use of the display device 200, the optical element 220 needs to be adjusted in angle to accommodate requirements such as different eye heights, different input image focal lengths, and switching between operating and non-operating states. The optical element 220 can be adjusted in angle via the hinge mechanism 100, allowing it to reciprocate within a preset range of travel.

[0076] For example, the optical element 220 can be rotated relative to the bottom housing 210 by adjusting the angle of the hinge mechanism 100, thereby enabling drivers of different heights to clearly and intuitively view the image information. Furthermore, / or, the light source element can be rotated relative to the bottom housing 210 by adjusting the angle of the hinge mechanism 100 to prevent damage to the display device 200 due to exposure to ambient light outside the display device 200 when the display device 200 is in the off state.

[0077] It should be noted that Figure 2 The purpose is only to schematically describe the connection relationship between the bottom shell 210, the optical element 220 and the hinge mechanism 100, and it does not specifically limit the connection position, specific structure and quantity of each component. The structure shown in the embodiment of the present application does not constitute a specific limitation on the display device 200. In other embodiments of the present application, the display device 200 may include Figure 2 More or fewer components may be shown, or some components may be combined or separated, or the components may be arranged differently. Figure 2 The components shown can be implemented in hardware, software, or a combination of software and hardware.

[0078] Please continue reading Figure 2 The bottom shell 210 may have a cavity W. The opening of the cavity W is located at one end in the thickness direction of the bottom shell 210, and the opening of the cavity W can be used to allow components such as the optical element 220 and the drive motor to extend therein. The cavity W can be used to accommodate components such as the optical element 220 and the drive motor. The bottom shell 210 may include a first side portion 2110 and a second side portion 2120. The first side portion 2110 and the second side portion 2120 may be arranged opposite to each other in the length direction of the bottom shell 210. The first side portion 2110 can be used to connect to the base 10 of one rotating shaft mechanism 100. The second side portion 2120 can be used to connect to the base 10 of another rotating shaft mechanism 100. In some other embodiments, other parts of the bottom shell 210 other than the first side portion 2110 and the second side portion 2120 may also be used to connect to the rotating shaft mechanism 100, and this is not strictly limited.

[0079] The material of the bottom housing 210 may include die-cast aluminum alloy, polyester fiber, polycarbonate, or thermoplastic polymer material. Of course, the materials listed above are not limited to the above-mentioned materials. Metal or non-metal materials with sufficient strength and capable of supporting various components of the display device 200 are all within the scope of protection claimed in the embodiments of this application.

[0080] Please refer to Figure 2 and Figure 3 , Figure 3 yes Figure 2 The structure diagram of the curved mirror of the display device 200 is shown in FIG. Figure 3 In the embodiment, the rotating shaft 20 of the rotating shaft mechanism 100 is connected to the optical element 220.

[0081] The optical element 220 is mounted on the bottom housing 210, with a portion of the optical element 220 located within the cavity W of the bottom housing 210. The optical element 220 is rotatable relative to the bottom housing 210 via the hinge mechanism 100. Specifically, the optical element 220 may include a bracket 2210 and a lens 2220. The bracket 2210 is rotatable relative to the bottom housing 210. The bracket 2210 is provided with a mounting slot H. The opening of the mounting slot H is located on the surface of the bracket 2210 facing the lens 2220. The shape of the mounting slot H may be adapted to the shape of the lens 2220 to accommodate the lens 2220. The bracket 2210 may include a first side panel 2230 and a second side panel 2240. The first side panel 2230 and the second side panel 2240 may be arranged opposite each other along the length of the bracket 2210. The first side panel 2230 may be positioned adjacent to the first side portion 2110 of the bottom housing 210. The first side panel 2230 may be configured to connect to the rotating shaft 20 of the hinge mechanism 100. The second side plate 2240 can be arranged adjacent to the second side portion 2120 of the bottom shell 210. The second side plate 2240 can be used to connect to the rotating shaft 20 of another rotating shaft mechanism 100. The lens 2220 is fixed in the mounting groove H of the bracket 2210 and can rotate relative to the bottom shell 210 under the drive of the bracket 2210. The lens 2220 can be a reflector with a free-form surface that can match the needs of optical imaging. By rotating the lens 2220 relative to the bottom shell 210, the projection position and projection angle of the light reflected by the lens 2220 can be changed. In some other embodiments, the lens 2220 can also be a spherical reflector or an aspherical reflector, which is not strictly limited.

[0082] It will be appreciated that, on the one hand, by enabling the optical element 220 to rotate relative to the bottom housing 210, the projection position and projection angle of the optical element 220 on the windshield 310 can be changed. On the other hand, by enabling the optical element 220 to rotate relative to the bottom housing 210, the reflective surface of the optical element 220 can be flipped when the display device 200 is not in use, thereby reducing or preventing ambient light outside the display device 200 from passing through the light-transmitting area of ​​the display device 200 and irradiating the reflective surface of the optical element 220, thereby reducing the impact of ambient light on the reflective surface of the optical element 220.

[0083] Please refer to Figure 2 and Figure 4 , Figure 4 yes Figure 2 A partial structural diagram of the hinge mechanism 100 of the display device 200 is shown.

[0084] The hinge mechanism 100 is mounted on the optical element 220 and the bottom housing 210, and rotatably connects the optical element 220 to the bottom housing 210. The number of hinge mechanisms 100 can be one or more. When there are multiple hinge mechanisms 100, the hinge mechanisms 100 can be spaced apart on both sides of the rotation center of the optical element 220. Each hinge mechanism 100 is connected between the optical element 220 and the bottom housing 210 and can rotate the optical element 220 relative to the bottom housing 210.

[0085] By way of example, there may be two hinge mechanisms 100. The two hinge mechanisms 100 are located on either side of the lengthwise direction of the optical element 220. Of the two hinge mechanisms 100, one hinge mechanism 100 is connected between the first side portion 2110 of the bottom housing 210 and the first side plate 2230 of the optical element 220, and the other hinge mechanism 100 is connected between the second side portion 2120 of the bottom housing 210 and the second side plate 2240 of the optical element 220. It will be appreciated that by providing two hinge mechanisms 100, and positioning them on either side of the lengthwise direction of the optical element 220, the rotation of the optical element 220 relative to the bottom housing 210 can be made more consistent and stable.

[0086] The structure of the rotating shaft mechanism 100 will be described in detail below by taking a rotating shaft mechanism 100 as an example. In the absence of conflict, the description of one rotating shaft mechanism 100 below can be applied to other rotating shaft mechanisms 100 .

[0087] The rotating shaft mechanism 100 may include a base 10, a rotating shaft 20, and an elastic member 30. The rotating shaft 20 is connected to the base 10 and is capable of rotating relative to the base 10 around the central axis I of the rotating shaft 20. That is, the rotating shaft 20 is rotatably connected to the base 10. The rotating shaft 20 can be used to be fixedly connected to the optical element 220 so that the optical element 220 and the rotating shaft 20 are linked and rotate synchronously relative to the base 10. The elastic member 30 may include a fixed portion 31, a bent portion 32, and a contact portion 33. The fixed portion 31 is fixedly connected to the base 10. The contact portion 33 elastically abuts against the rotating shaft 20. The bent portion 32 is bent and connected between the fixed portion 31 and the contact portion 33, and presses the contact portion 33 against the rotating shaft 20. At least a portion of the bent portion 32 is located on the side of the contact portion 33 facing away from the rotating shaft 20. The bent portion 32 may be arranged to protrude relative to the surface of the fixed portion 31 facing away from the base 10.

[0088] It is understood that because the rotating shaft 20 is fixedly connected to the optical element 220, when the rotating shaft 20 rotates relative to the base 10, the optical element 220 can be driven by the rotating shaft 20 to rotate synchronously with the base 10. In other words, the rotating shaft 20 and the optical element 220 can be linked. Therefore, when designing the rotation performance of the optical element 220, the rotation performance of the rotating shaft 20 connected to it will be more focused. Considering the rotation requirements of the rotating shaft 20 relative to the base 10, the rotating shaft 20 and the base 10 should not be too tightly connected during assembly, thereby preventing the rotating shaft 20 from rotating, nor too loosely connected, thereby causing the rotating shaft 20 to become loose from the base 10.

[0089] Therefore, in the embodiment of the present application, by making the fixing portion 31 fixedly connected to the base 10, a fixed connection between the elastic member 30 and the base 10 can be achieved. By making the contact portion 33 elastically abut against the rotating shaft 20, when the rotating shaft 20 is affected by an external force and vibrates, it can not only resist the vibration force and prevent the transmission of the vibration force, but also consume part of the vibration energy through its own elastic deformation, thereby reducing the damage caused by the vibration to the rotating shaft mechanism 100, reducing the fluctuation of the impact force or torque, protecting the connected rotating shaft 20 from damage, and effectively transmitting the power of the rotating shaft 20, so that the elastic member 30 is in close contact with the rotating shaft 20. By positioning at least a portion of the bent portion 32 on the side of the contact portion 33 facing away from the rotating shaft 20 and by bending the bent portion 32 between the fixed portion 31 and the contact portion 33, the bent portion 32 can serve as a power source for the contact portion 33, continuously applying a force to the contact portion 33 to stably press the contact portion 33 against the rotating shaft 20. This allows the contact portion 33 to stably and continuously apply an elastic downward pressure to the rotating shaft 20, with a more stable elastic force and a wider range of adjustment. This prevents loosening between the contact portion 33 and the rotating shaft 20, ensuring the stability and reliability of the contact portion 33 during operation, and facilitating control of deformation of the elastic member 30 and eliminating clearance between the elastic member 30 and the rotating shaft 20. In other words, by providing the bent portion 32, the bent portion 32 can provide a continuous driving force for the contact engagement between the contact portion 33 and the rotating shaft 20, thereby pressing the contact portion 33 against the rotating shaft 20 without the need for additional structural components.

[0090] In other words, by providing the elastic member 30, the bent portion 32 can be used to apply a certain amount of pressure to the contact point between the contact portion 33 and the rotating shaft 20, maintaining close contact between the contact portion 33 and the rotating shaft 20. When the external force applied to the rotating shaft 20 varies within a certain range, the contact and fit between the contact portion 33 and the rotating shaft 20 allows the elastic member 30 to maintain resistance to the force while also adapting to the change in external force through its own elastic deformation, thus preventing damage to the rotating shaft 20 caused by the rigid connection. The pre-deformation of the elastic member 30 generates elastic force which is transmitted to the rotating shaft 20, so that the rotating shaft 20 can rotate smoothly, and the looseness and wear at the joint between the elastic member 30 and the rotating shaft 20 can be reduced, and the vibration, abnormal noise and shaking caused by the tolerance gap between the elastic member 30 and the rotating shaft 20 can be eliminated, and the rotating shaft 20 and the optical element 220 connected to the rotating shaft 20 can be effectively prevented from moving and generating noise during the rotation process, which is conducive to making the rotating shaft 20 more stable during the rotation process, improving the stability and wear resistance of the connection between the rotating shaft 20 and the elastic member 30, improving the imaging quality of the optical element 220, and enhancing the user experience.

[0091] Furthermore, due to the simple structure of the elastic member 30, the processing and manufacturing of the elastic member 30 is relatively simple. This helps significantly reduce the manufacturing cost of the hinge mechanism 100 while maintaining the high modal, low wear, and low load performance of the hinge mechanism 100, thereby improving the market competitiveness of the display device 200 using the hinge mechanism 100. For example, the cost of the hinge mechanism 100 can be reduced by approximately 90%.

[0092] Please refer to Figure 4 and Figure 5 , Figure 5 yes Figure 4 The diagram shows a partial structural diagram of the connection between the base 10 and the bottom shell 210 of the rotating shaft mechanism 100.

[0093] The base 10 can be fixedly connected to the bottom shell 210. The base 10 and the bottom shell 210 can be connected to form an integral structure. Specifically, the base 10 can be located at the edge of the opening of the bottom shell 210, one end of the base 10 can be fixedly connected to the end of the bottom shell 210 with an opening, and the other end of the base 10 can extend in a direction away from the bottom shell 210. The base 10 and the bottom shell 210 can be two independent structures, and the two can be connected to form an integral structure by assembly methods such as welding and bonding. Alternatively, the base 10 and the bottom shell 210 can also be an integral structure formed by connection in a manner such as integral molding. Exemplarily, the base 10 can be connected to the first side portion 2110 and / or the second side portion 2120 of the bottom shell 210.

[0094] The base 10 may be provided with a first rotation groove 11. The first rotation groove 11 may be recessed from the surface of the base 10 away from the bottom shell 210 toward the bottom shell 210, and pass through two side surfaces that are oppositely arranged in the width direction of the base 10. The curvature of the first rotation groove 11 may be less than or equal to the curvature of the rotating shaft 20. The first rotation groove 11 may be used to accommodate part of the rotating shaft 20. Exemplarily, the shape of the first rotation groove 11 may be arc-shaped. It is understandable that by providing the first rotation groove 11 on the base 10, a certain amount of space can be provided to accommodate part of the rotating shaft 20 while ensuring the structural strength of the base 10, which is beneficial to improving the space utilization inside the rotating shaft mechanism 100.

[0095] A first positioning post 12 may be protruding from the surface of the base 10 away from the bottom housing 210. The first positioning post 12 is configured to connect with the first positioning hole 311 of the elastic member 30, thereby facilitating quick alignment and connection of the elastic member 30 with the base 10, thereby improving the assembly efficiency of the hinge mechanism 100. The number of first positioning posts 12 may be one or more. When there are multiple first positioning posts 12, the multiple first positioning posts 12 are spaced apart on the surface of the base 10 away from the bottom housing 210, with each first positioning post 12 configured to connect one-to-one with a first positioning hole 311 of the elastic member 30.

[0096] The surface of the base 10 away from the bottom shell 210 may further be provided with a blind hole 13. The blind hole 13 is spaced apart from the first positioning column 12. The blind hole 13 can be connected to the first through hole 312 of the elastic member 30 and is used to connect with the locking member 50 so that the locking member 50 can be locked on the base 10. The number of the blind holes 13 may be one or more. When the number of the blind holes 13 is multiple, the multiple blind holes 13 are spaced apart on the surface of the base 10 away from the bottom shell 210, and each blind hole 13 is used to connect with a locking member 50. For example, the blind hole 13 may be a threaded hole. The number of the blind holes 13 may be two, and the two blind holes 13 are respectively located on both sides of the radial direction of the rotating shaft 20.

[0097] Please refer to Figure 4 and Figure 6 , Figure 6 yes Figure 4 FIG. 1 is a partial structural diagram of the connection between the rotating shaft 20 of the rotating shaft mechanism 100 and the optical element 220 .

[0098] The rotating shaft 20 can be fixedly connected to the optical element 220. The rotating shaft 20 and the optical element 220 can be connected to form an integrated structure. Specifically, the rotating shaft 20 can be located on the outside of the optical element 220, one end of the rotating shaft 20 can be connected to the outer edge of the optical element 220, and the other end of the rotating shaft 20 can extend in a direction away from the optical element 220. The rotating shaft 20 and the optical element 220 can be two independent structures, and the two can be connected to form an integrated structure by assembly methods such as welding and bonding. Alternatively, the rotating shaft 20 and the optical element 220 can also be an integrated structure formed by connection methods such as integral molding. For example, the rotating shaft 20 can be connected to the first side plate 2230 and / or the second side plate 2240 of the optical element 220.

[0099] The rotating shaft 20 can rotate relative to the base 10 and / or the bottom shell 210 along the central axis I of the rotating shaft 20. When the rotating shaft 20 rotates relative to the base 10 and / or the bottom shell 210, the optical element 220 can be driven to rotate synchronously relative to the base 10 and / or the bottom shell 210. For example, a reinforcing rib 240 can be provided at the connection between the rotating shaft 20 and the optical element 220, and the reinforcing rib 240 can extend along the circumferential direction of the rotating shaft 20. The circumferential direction of the rotating shaft 20 is the direction surrounding the central axis I of the rotating shaft 20. It can be understood that by providing the reinforcing rib 240 at the connection between the rotating shaft 20 and the optical element 220, the connection strength of the connection between the rotating shaft 20 and the optical element 220 can be enhanced, thereby preventing the rotating shaft 20 from breaking and causing the optical element 220 to fail.

[0100] The rotating shaft 20 can be installed in the first rotating groove 11 of the base 10. Both ends of the rotating shaft 20 along its axial direction can extend out of the first rotating groove 11 of the base 10. The axial direction of the rotating shaft 20 is the direction of the central axis I of the rotating shaft 20. The rotating shaft 20 can rotate relative to the base 10 within the first rotating groove 11 of the base 10.

[0101] A gap may exist between the outer surface of the rotating shaft 20 and the inner wall of the first rotating groove 11 of the base 10. For example, the gap distance between the outer surface of the rotating shaft 20 and the inner wall of the first rotating groove 11 of the base 10 may be 0.2 mm (within the allowable tolerance range). It is understood that since the rotating shaft 20 is a rotating component, a certain installation gap is reserved between the rotating shaft 20 and the first rotating groove 11 of the base 10 to enable the rotating shaft 20 to rotate smoothly within the first rotating groove 11 of the base 10 during operation. Furthermore, since the elastic member 30 also presses against the rotating shaft 20 during rotation, the rotating shaft 20 can be effectively prevented from moving during rotation, thereby improving reliability.

[0102] Alternatively, the outer surface of the rotating shaft 20 may abut against the inner wall of the first rotation groove 11 of the base 10. It will be appreciated that by abutting the outer surface of the rotating shaft 20 against the inner wall of the first rotation groove 11 of the base 10, the rotating shaft 20 and the first rotation groove 11 of the base 10 can be brought into zero-match contact. Furthermore, when the drive motor for rotating the optical element 220 has sufficient thrust, even if the rotating shaft 20 and the first rotation groove 11 of the base 10 are in zero-match contact, the rotating shaft 20 connected to the optical element 220 can still rotate relative to the base 10.

[0103] In an embodiment of the present application, the elastic member 30 is fixedly connected to the base 10 and is in elastic contact with the rotating shaft 20. The elastic member 30 can have a variety of structural forms to provide good elastic downward pressure to the rotating shaft 20 and eliminate the fitting gap between the rotating shaft 20 and the base 10. Among them, the elastic member 30 can be any structural member with a certain strength and good elastic properties. The elastic member 30 can be an integrated structure. For example, the elastic member 30 can be a spring and can be formed by bending sheet metal. The material of the elastic member 30 can be stainless steel, carbon fiber or manganese alloy, etc. Of course, it is not limited to the materials listed above. Materials that can meet the working requirements of the elastic member 30 are all within the scope of protection requested by this application.

[0104] The structure of the elastic member 30 will be described in detail below through three specific embodiments.

[0105] In the first possible implementation, please refer to Figure 4 、 Figure 7 and Figure 8 , Figure 7 yes Figure 4The structural diagram of the first structure of the elastic member 30 of the rotating shaft mechanism 100 is shown at an angle. Figure 8 yes Figure 4 The structure diagram of the first structure of the elastic member 30 of the rotating shaft mechanism 100 is shown from another angle.

[0106] The fixing portion 31 can be detachably connected to the base 10, thereby achieving a detachable connection between the elastic member 30 and the base 10. The detachable connection between the fixing portion 31 and the base 10 facilitates the removal and assembly of the elastic member 30 from the base 10 when the elastic member 30 needs to be repaired or replaced, thereby improving the maintainability of the hinge mechanism 100. In other embodiments, the fixing portion 31 can also be fixedly connected to the base 10 by methods such as welding or bonding, which are not strictly limited.

[0107] For example, the fixing portion 31 and the base 10 can be detachably connected by a locking member 50, wherein the locking member 50 can be a screw. Alternatively, the fixing portion 31 and the base 10 can be detachably connected by a clamping method, such as providing a buckle on one of the fixing portion 31 and the base 10 and providing a hook on the other, and the hook and buckle clamp together to securely connect the fixing portion 31 to the base 10.

[0108] The fixing portion 31 may be provided with a first positioning hole 311 and a first through-hole 312. The first positioning hole 311 may penetrate the fixing portion 31 along the thickness direction of the fixing portion 31. The first positioning hole 311 may correspond to the position of the first positioning post 12 of the base 10 and may be used to pass through the first positioning post 12 of the base 10. The number of first positioning holes 311 may be one or more. When there are multiple first positioning holes 311, the multiple first positioning holes 311 are spaced apart on the fixing portion 31, and each first positioning hole 311 is used to pass through a first positioning post 12 of the base 10. The first through-hole 312 may be spaced apart from the first positioning hole 311 and may penetrate the fixing portion 31 along the thickness direction of the fixing portion 31. The first through-hole 312 can communicate with the blind hole 13 of the base 10 and may be used to pass through the locking member 50 to be fixedly connected to the base 10 via the locking member 50. The number of first through-holes 312 may be one or more. When there are multiple first through holes 312 , the multiple first through holes 312 are spaced apart on the fixing portion 31 , and each first through hole 312 is used to connect with a locking member 50 .

[0109] The fixing portion 31 may include a first section 313 and a second section 314. The first section 313 and the second section 314 are spaced apart and are both fixedly connected to the base 10. That is, the first section 313 and the second section 314 are spaced apart and are connected to the base 10. The first section 313 and the second section 314 are respectively located on both sides of the radial direction of the rotating shaft 20. The radial direction of the rotating shaft 20 is a direction perpendicular to the central axis I of the rotating shaft 20, that is, the diameter direction of the rotating shaft 20. In some other embodiments, only one of the first section 313 and the second section 314 may be fixed to the base 10, and the other may be separated from the base 10, and this is not strictly limited. For example, the first section 313 may be provided with a first positioning hole 311 and a first through hole 312 spaced apart. The second section 314 may be provided with a first through hole 312.

[0110] The gap area between the first section 313 and the second section 314 can be used to accommodate the bending portion 32 and the contact portion 33. The bending portion 32 and the contact portion 33 can be connected in sequence between the first section 313 and the second section 314. It can be understood that by making the fixing portion 31 include the first section 313 and the second section 314, and making the first section 313 and the second section 314 both connected to the base 10, the connection stability and reliability between the fixing portion 31 and the base 10 can be enhanced. By making the bending portion 32 and the contact portion 33 connected in sequence between the first section 313 and the second section 314, the elasticity of the elastic member 30 itself can be utilized to make the elastic member 30 as a whole present a curved extension shape, which is conducive to the elastic member 30 better applying force to the rotating shaft 20 and better reliability.

[0111] In this embodiment, one end of the bent portion 32 is connected to the first section 313, and the other end of the bent portion 32 is connected to the contact portion 33. The bent portion 32 bends and extends between the first section 313 and the contact portion 33. The bent portion 32 may have at least one bend angle between the first section 313 and the contact portion 33. That is, the bent portion 32 may bend at least once between the first section 313 and the contact portion 33. At least a portion of the bent portion 32 is located on the side of the first section 313 facing away from the base 10. That is, the bent portion 32 protrudes relative to the surface of the first section 313 facing away from the base 10. For example, the higher the height of the bent portion 32, the smaller the elastic downward force exerted by the contact portion 33 on the rotating shaft 20. The shorter the height of the bent portion 32, the greater the elastic downward force exerted by the contact portion 33 on the rotating shaft 20. The height of the bent portion 32 may be the minimum distance between the first section 313 and the bend vertex of the bent portion 32 in the thickness direction of the elastic member 30.

[0112] It can be understood that by providing the bending portion 32, the local strength of the elastic member 30 can be increased, the stress applied to the contact portion 33 can be dispersed, the free deformation space of the contact portion 33 under force can be limited, the possibility of the contact portion 33 yielding and fracturing due to breaking the yield strength can be reduced, and the working reliability of the elastic member 30 can be improved.

[0113] The bent portion 32 and the contact portion 33 can be arranged sequentially along the length of the elastic member 30. The bent portion 32 can be bent in a direction away from the rotating shaft 20. The curvature of the bent portion 32 can be selected based on the actual application of the elastic member 30. The bent portion 32 can be bent with a larger curvature to form a generally arched shape, or with a smaller curvature to form a generally inverted bat shape. This is not strictly limited.

[0114] It is understood that by bending the bent portion 32 in a direction away from the rotating shaft 20 and arranging it in sequence with the contact portion 33 along the length direction of the elastic member 30, the bent portion 32 can be arranged to the side of the contact portion 33, so that the bent portion 32 and the contact portion 33 are adjacent and staggered. In this way, the bending shape of the bent portion 32 can be fully utilized to better transmit the force to the contact portion 33, so that the contact portion 33 continuously presses against the rotating shaft 20, eliminating the fit gap between the rotating shaft 20 and the base 10.

[0115] In this embodiment, one end of the contact portion 33 is connected to the bending portion 32, and the end of the contact portion 33 away from the bending portion 32 is connected to the second section 314. The contact portion 33 can interfere with the rotating shaft 20. The interference fit between the contact portion 33 and the rotating shaft 20 means that when the contact portion 33 and the rotating shaft 20 are connected, by designing appropriate geometric shapes and dimensions, they produce a certain interference during the assembly process, that is, a certain amount of interference, thereby achieving the purpose of tightening and fixing. The amount of interference (i.e., the amount of interference) between the contact portion 33 and the rotating shaft 20 can be selected according to the actual application requirements of the rotating shaft mechanism 100, and there is no strict restriction on this. For example, the amount of interference between the contact portion 33 and the rotating shaft 20 can be in the range of 0.1mm-0.5mm (including the endpoint values ​​of 0.1mm and 0.5mm).

[0116] It can be understood that since the elastic part is in elastic contact with the rotating shaft 20, when vibrations and shaking of different sizes are generated due to the driving of the vehicle, the elastic part 30 can effectively prevent the vibration and shaking of the vehicle from being transmitted to the optical element 220 through the vehicle body and the rotating shaft 20, thereby causing the imaging position of the optical element 220 to shake and shift, affecting the display of the image. This is conducive to ensuring that the image projected by the optical element 220 is clear and effective, meeting the high-definition requirements of the display device 200, and improving the user experience.

[0117] Please refer to Figure 7 and Figure 8 , the contact portion 33 can be bent in the direction of the rotating shaft 20, wherein the bending curvature of the contact portion 33 can be selected according to the actual application of the elastic member 30, and there is no strict restriction on this. That is, the contact portion 33 extends in a curve and is bent and connected between the bending portion 32 and the second section 314 of the fixing portion 31. The bending direction of the contact portion 33 is opposite to the bending direction of the bending portion 32. Exemplarily, the shape formed by the connection between the bending portion 32 and the contact portion 33 can be N-shaped. It can be understood that by bending the contact portion 33 in the direction of the rotating shaft 20, the connection between the bending portion 32 and the contact portion 33 can be made into an arc-shaped transition, which disperses the stress on the contact portion 33, so that the root of the contact portion 33 (that is, the portion where the contact portion 33 contacts the rotating shaft 20) will not be broken due to excessive stress, and the reliability is better. In addition, since the bending direction of the contact portion 33 is opposite to the bending direction of the bending portion 32, the contact portion 33 can cooperate with the bending portion 32 to form a two-level anti-deformation structure, which can further optimize the stress distribution on the elastic part 30 and reduce stress concentration, thereby reducing the risk of failure of the elastic part 30 and improving the working reliability of the elastic part 30.

[0118] Alternatively, see Figure 9 , Figure 9 yes Figure 4 The second structural diagram of the elastic member 30 of the rotating shaft mechanism 100 is shown. The extending direction of the contact portion 33 can also be arranged parallel to the extending direction of the fixing portion 31. That is, the contact portion 33 can extend in a straight line.

[0119] To sum up, the contact portion 33 can extend in a curve, or the contact portion 33 can extend in a straight line. The present application does not impose strict restrictions on the extended shape of the contact portion 33, as long as the contact portion 33 is connected to the bending portion 32 and the contact portion 33 interferes with the rotating shaft 20.

[0120] In this embodiment, if Figure 4 As shown, the contact portion 33 can contact the rotating shaft 20 along the circumferential direction of the rotating shaft 20. Alternatively, the contact portion 33 can also contact the rotating shaft 20 along the axial direction of the rotating shaft 20 (i.e., the contact portion 33 can contact the rotating shaft 20 along the axial direction of the rotating shaft 20). Figure 4 (The contact portion 33 shown is positioned in a manner rotated 90° to contact the rotating shaft 20.) It will be appreciated that by positioning the contact portion 33 in contact with the rotating shaft 20 along the circumferential or axial direction of the rotating shaft 20, the relative position of the elastic member 30 and the rotating shaft 20 can be varied more variably, allowing the elastic member 30 to have a larger or smaller contact area with the rotating shaft 20 according to actual application requirements, thereby providing greater flexibility.

[0121] For the second possible implementation, see Figure 10 , Figure 10 yes Figure 4The third structural diagram of the elastic member 30 of the rotating shaft mechanism 100 is shown. In this embodiment, the same contents as the first embodiment are not repeated here, and the differences from the first embodiment are described below. Furthermore, the description of the elastic member 30 below is applicable to the first embodiment above unless there is a conflict.

[0122] In this embodiment, the number of the bending portions 32 can be two, and the two bending portions 32 are symmetrically arranged on both sides of the contact portion 33 and are respectively connected to the two ends of the length direction of the contact portion 33. For example, the two bending portions 32 can be mirror-symmetrical structures to each other. The shape formed by the connection between the bending portion 32 and the contact portion 33 can be M-shaped. Of course, in some other embodiments, the number of the bending portions 32 can be more than two, as long as at least one of the more than two bending portions 32 is connected to the contact portion 33, and there is no strict restriction on this.

[0123] It can be understood that by providing two bending portions 32 and symmetrically arranging the two bending portions 32 about the contact portion 33, the forces at both ends of the contact portion 33 can be balanced, so that the forces applied to the contact portion 33 have better consistency and can apply greater elastic downward pressure to the rotating shaft 20.

[0124] For a third possible implementation, see Figure 11 , Figure 11 yes Figure 4 A fourth structural schematic diagram of the elastic member 30 of the rotating shaft mechanism 100 is shown. In this embodiment, the same contents as the first embodiment are not repeated here, and the differences from the first embodiment are described below. Furthermore, the following description of the elastic member 30 is applicable to both the first and second embodiments above, unless there is a conflict.

[0125] In this embodiment, the bent portion 32 may have at least one bend angle between the fixed portion 31 and the contact portion 33, with the bending directions of two adjacent bend angles being opposite. In other words, the bent portion 32 may be bent at least once between the fixed portion 31 and the contact portion 33. Furthermore, the contact portion 33 may be stacked with a portion of the bent portion 32 in the thickness direction of the elastic member 30.

[0126] It can be understood that by stacking the contact portion 33 and the partially bent portion 32 in the thickness direction of the elastic member 30, the partially bent portion 32 can be bent above the contact portion 33, so that the bent portion 32 located above the contact portion 33 can present a spring-like shape, so as to fully utilize the elastic properties and gravity of the elastic member 30, and apply downward pressure to the contact portion 33, so that the contact portion 33 can maintain close contact with the rotating shaft 20.

[0127] Of course, the shape of the elastic member 30 is not limited to the three embodiments listed above. The structural form that can satisfy the bending portion 32 to provide downward pressure to the contact portion 33 so that the contact portion 33 presses on the rotating shaft 20 is within the scope of protection requested by the embodiments of this application and is not strictly limited.

[0128] Please refer to Figure 12 、 Figure 13 and Figure 14, Figure 12 yes Figure 2 Another partial structural diagram of the hinge mechanism 100 of the display device 200 is shown. Figure 13 It is along Figure 12 The cross-sectional diagram obtained by cutting along the cutting line AA is shown in FIG. Figure 14 yes Figure 12 A structural schematic diagram of the shaft sleeve 40 of the rotating shaft mechanism 100 is shown.

[0129] In the embodiments of the present application, the shaft mechanism 100 may further include a sleeve 40. The sleeve 40 is fixedly connected to the base 10. The sleeve 40 may be made of a non-metallic material, such as polyester, polycarbonate, or a thermoplastic polymer. Of course, the materials listed above are not limited to these. Any metal or non-metallic material with sufficient strength is within the scope of protection claimed in the embodiments of the present application.

[0130] The shaft sleeve 40 can be detachably connected to the base 10. This detachable connection facilitates removal and reassembly of the shaft sleeve 40 from the base 10 when the shaft sleeve 40 needs to be repaired or replaced, thereby improving the maintainability of the shaft mechanism 100. In other embodiments, the shaft sleeve 40 can also be fixedly connected to the base 10 by welding, bonding, or other methods, which are not strictly limited.

[0131] For example, the shaft sleeve 40 and the base 10 can be detachably connected by a locking member 50, wherein the locking member 50 can be a screw. Alternatively, the shaft sleeve 40 and the base 10 can be detachably connected by a clamping method, such as providing a buckle on one of the shaft sleeve 40 and the base 10 and providing a hook on the other, and the hook and buckle are clamped to fix the fixing portion 31 to the base 10.

[0132] The sleeve 40 is also rotatably connected to the rotating shaft 20. That is, the rotating shaft 20 can rotate relative to the sleeve 40 along the central axis I of the rotating shaft 20. When the rotating shaft 20 rotates relative to the sleeve 40, it can drive the optical element 220 to rotate synchronously with the sleeve 40. The sleeve 40 can be provided with a through-hole 41. The through-hole 41 can penetrate the sleeve 40 along the thickness direction of the sleeve 40. The through-hole 41 is used to accommodate a portion of the rotating shaft 20 and a portion of the elastic member 30. Specifically, the fixing portion 31 of the elastic member 30 can be fixedly connected to the sleeve 40 and located on the side of the sleeve 40 facing away from the base 10. That is, a portion of the sleeve 40 can be located between the base 10 and the fixing portion 31 of the elastic member 30. The bent portion 32 of the elastic member 30 can be located on the side of the sleeve 40 facing away from the base 10. At least a portion of the contact portion 33 of the elastic member 30 is located within the through-hole 41 and contacts the rotating shaft 20 located within the through-hole 41.

[0133] It is understandable that when the rotating shaft 20 is subjected to an external force and moves upward, the impact force on the elastic member 30 is relatively strong, making the connection between the elastic member 30 and the base 10 (i.e., the connection between the elastic member 30 and the base 10 via the locking member 50) susceptible to fracture. Therefore, by adding the sleeve 40 and positioning a portion of the sleeve 40 between the fixing portion 31 of the elastic member 30 and the base 10, the movement of the rotating shaft 20 toward the elastic member 30 can be effectively restrained, dissipating the gravitational force on the elastic member 30 and avoiding the problem of the elastic member 30 yielding and fracturing due to the entire external force acting on the rotating shaft 20 acting on the elastic member 30 (if the deformation of the elastic member 30 is too great, the elastic member 30 will exceed its recovery limit and cannot be reset).

[0134] The sleeve 40 may further include a second positioning hole 42 and a second through-hole 43. The second positioning hole 42 may extend through the sleeve 40 along its thickness. The second positioning hole 42 may correspond to and communicate with the first positioning hole 311 of the elastic member 30, and may be used to allow the first positioning post 12 of the base 10 to pass through. The number of second positioning holes 42 may be one or more. When there are multiple second positioning holes 42, the multiple second positioning holes 42 are spaced apart on the sleeve 40, each second positioning hole 42 being used to allow one of the first positioning posts 12 of the base 10 to pass through. The second through-hole 43 may be spaced apart from the second positioning holes 42 and extend through the sleeve 40 along its thickness. The second through-hole 43 may correspond to and communicate with the first through-hole 312 of the elastic member 30 and the blind hole 13 of the base 10, and may be used to allow the locking member 50 to pass through, thereby securely connecting the locking member 50 to the elastic member 30 and the base 10. The number of second through-holes 43 may be one or more. When there are multiple second through holes 43 , the multiple second through holes 43 are spaced apart on the shaft sleeve 40 , and each second through hole 43 is used to connect with a locking member 50 .

[0135] In one possible implementation, please refer to Figure 14 and Figure 15 , Figure 15 yes Figure 12 FIG. 1 is a schematic structural diagram of the elastic member 30 of the rotating shaft mechanism 100 .

[0136] A second positioning post 44 may be provided protrudingly on the surface of the sleeve 40 away from the base 10. The fixing portion 31 of the elastic member 30 may be provided with a third positioning hole 315. The third positioning hole 315 may penetrate the fixing portion 31 along the thickness direction of the fixing portion 31 and be spaced apart from the first positioning hole 311 and the first through hole 312. The second positioning post 44 of the sleeve 40 may pass through the third positioning hole 315 of the elastic member 30. That is, the second positioning post 44 may be used to connect with the third positioning hole 315 of the elastic member 30, so that the elastic member 30 can be quickly aligned and connected with the sleeve 40, thereby improving the assembly efficiency of the rotating shaft mechanism 100.

[0137] The number of second positioning posts 44 can be one or more. When there are multiple second positioning posts 44, the multiple second positioning posts 44 are spaced apart on the surface of the sleeve 40 away from the base 10, and each second positioning post 44 is used to connect one-to-one with a third positioning hole 315 of the elastic member 30. The number of third positioning holes 315 can be one or more. When there are multiple third positioning holes 315, the multiple third positioning holes 315 are spaced apart on the sleeve 40, and each third positioning hole 315 is used to allow a second positioning post 44 of the sleeve 40 to pass through.

[0138] For example, there may be two second positioning posts 44. The two second positioning posts 44 are spaced apart in the longitudinal direction of the sleeve 40. There may be two third positioning holes 315. Of the two third positioning holes 315, one is located in the first section 313 of the fixing portion 31, and the other is located in the second section 314 of the fixing portion 31.

[0139] Please refer to Figure 12 、 Figure 13 and Figure 14 In an embodiment of the present application, the sleeve 40 may be provided with a second rotation groove 45. The second rotation groove 45 may be recessed from the surface of the sleeve 40 facing the base 10 to the inside of the sleeve 40, and pass through two side surfaces arranged oppositely in the width direction of the sleeve 40. The curvature of the second rotation groove 45 may be less than or equal to the curvature of the rotating shaft 20. The second rotation groove 45 may be used to install the rotating shaft 20 and accommodate part of the rotating shaft 20. When the rotating shaft 20 is installed in the second rotation groove 45, both ends of the rotating shaft 20 along its axial direction may extend out of the second rotation groove 45. The rotating shaft 20 can rotate relative to the base 10 in the second rotation groove 45 of the sleeve 40.

[0140] The second rotation groove 45 can cooperate with the first rotation groove 11 of the base 10 to accommodate the rotation shaft 20 and limit the rotation shaft 20 between the base 10 and the sleeve 40. For example, the shape of the second rotation groove 45 can be arc-shaped. The curvature of the second rotation groove 45 can be less than, greater than, or equal to the curvature of the first rotation groove 11 of the base 10. For example, Figure 12 As shown, the curvature of the second rotation slot 45 may be smaller than the curvature of the first rotation slot 11 of the base 10 .

[0141] It is understood that by providing the second rotation groove 45 on the sleeve 40, a certain amount of space can be provided to accommodate part of the rotating shaft 20 while ensuring the structural strength of the sleeve 40, which is beneficial for improving the space utilization within the rotating shaft mechanism 100. By cooperating with the second rotation groove 45 and the first rotation groove 11 of the base 10 to limit the rotating shaft 20, the rotating shaft 20 can be limited from both the upper and lower sides to sandwich the rotating shaft 20 between the base 10 and the sleeve 40, further improving the installation stability and reliability of the rotating shaft 20.

[0142] A gap may be provided between the inner wall of the second rotation groove 45 and the outer surface of the rotating shaft 20. For example, the gap between the inner wall of the second rotation groove 45 and the outer surface of the rotating shaft 20 may be 0.2 mm (within an allowable tolerance range). It is understood that since the rotating shaft 20 is a rotating component, a certain installation gap is reserved between the rotating shaft 20 and the second rotation groove 45 of the sleeve 40 to enable the rotating shaft 20 to rotate smoothly within the second rotation groove 45 of the sleeve 40 during operation. Furthermore, since the elastic member 30 also presses against the rotating shaft 20 during rotation, the rotating shaft 20 can be effectively prevented from moving during rotation, thereby improving reliability.

[0143] Alternatively, the inner wall of the second rotation groove 45 may abut the outer surface of the rotation shaft 20. It is understood that by abutting the outer surface of the rotation shaft 20 against the inner wall of the second rotation groove 45, the rotation shaft 20 and the second rotation groove 45 can be in zero-match contact. Furthermore, when the drive motor for rotating the optical element 220 has sufficient thrust, even if the rotation shaft 20 and the second rotation groove 45 are in zero-match contact, the rotation shaft 20 connected to the optical element 220 can still rotate relative to the sleeve 40.

[0144] It should be noted that in the embodiments of the present application, grease can also be applied between the contact portion 33 of the rotating shaft 20 and the elastic member 30, between the rotating shaft 20 and the first rotating groove 11 of the base 10, and between the rotating shaft 20 and the second rotating groove 45 of the sleeve 40 to reduce friction and wear and chipping of components such as the elastic member 30, the base 10, and the sleeve 40.

[0145] Please continue reading Figure 12 、 Figure 13 As shown in Figure 14 , the sleeve 40 may include a main body 46 and at least two retaining walls 47. At least a portion of the main body 46 is located between the fixing portion 31 and the base 10. The main body 46 is provided with the aforementioned through-hole 41, second positioning hole 42, second through-hole 43, second positioning post 44, and second rotation slot 45 of the sleeve 40. The at least two retaining walls 47 are projected from the surface of the main body 46 facing away from the rotating shaft 20 and are located on either side of the main body 46 in the width direction. The at least two retaining walls 47 are also located on either side of the elastic member 30 in the width direction. The at least two retaining walls 47 can partially shield the elastic member 30. That is, at least a portion of the elastic member 30's projection along the width direction of the elastic member 30 falls onto the at least two retaining walls 47. The shape, protrusion height of the retaining walls 47 relative to the main body 46, thickness, length, and other characteristics of the retaining walls 47 can be selected based on the actual application scenario of the sleeve 40 and are not strictly limited. For example, there may be two retaining walls 47 , each of which is protruding from both sides of the body 46 in the width direction. Each retaining wall 47 covers a portion of the elastic member 30 .

[0146] It can be understood that by providing a retaining wall 47 on the main body 46, the sleeve 40 can further prevent the elastic part 30 from deforming in the up and down directions on the basis of being able to prevent the sleeve 40 from deforming in the lateral direction along its width direction, so that the sleeve 40 can further limit the elastic part 30 to play a secondary constraint role under vibration and impact, preventing the elastic part 30 from fatigue fracture due to excessive deformation, and having better reliability.

[0147] For a possible implementation, see Figure 16 , Figure 16 yes Figure 2 FIG. 1 is another partial structural diagram of the hinge mechanism 100 of the display device 200 .

[0148] In this embodiment, the rotating shaft mechanism 100 may further include a sleeve 60. The sleeve 60 may be fixedly connected to the body 46 of the sleeve 40 or the base 10, and may be located between the body 46 of the sleeve 40 and the base 10. The sleeve 60 is also sleeved on the rotating shaft 20, so that the rotating shaft 20 can rotate relative to the sleeve 60 within the sleeve 60, and synchronously rotate relative to the sleeve 40 and the base 10. The sleeve 60 may be connected to the body 46 of the sleeve 40 to form an integrated structure. Alternatively, the sleeve 60 may be connected to the base 10 to form an integrated structure. The relevant implementation forms of the integrated structure can be found in the above description and will not be repeated here.

[0149] It is understandable that by providing the sleeve 60 , the rotating shaft 20 can be passed through the sleeve 60 , ensuring that the sleeve 60 can be arranged around the outside of the rotating shaft 20 to protect and limit the rotating shaft 20 .

[0150] Furthermore, a third positioning post 61 may be provided on the sleeve 60, and a fourth positioning hole communicating with the first rotation groove 11 may be provided in the first rotation groove 11 of the base 10. The sleeve 60 and the base 10 are positioned and connected by plugging the third positioning post 61 into the fourth positioning hole.

[0151] In an embodiment of the present application, the rotating shaft mechanism 100 may further include a locking member 50. The locking member 50 is used to securely connect the elastic member 30 to the base 10. Alternatively, the locking member 50 is used to securely connect the elastic member 30, the shaft sleeve 40, and the base 10.

[0152] The above are only some of the embodiments and implementations of this application. The scope of protection of this application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A rotating shaft mechanism, characterized in that: The rotating shaft mechanism comprises: Pedestal; A rotating shaft, the rotating shaft is rotatably connected to the base, and the rotating shaft is used to be fixedly connected to the optical element; and An elastic member, wherein the elastic member includes a fixed portion, a bent portion and a contact portion, wherein the fixed portion is fixedly connected to the base, the contact portion elastically abuts against the rotating shaft, the bent portion is bent and connected between the fixed portion and the contact portion, and presses the contact portion against the rotating shaft, and at least part of the bent portion is located on a side of the contact portion away from the rotating shaft.

2. The rotating shaft mechanism according to claim 1, characterized in that: The bending portion and the contact portion are sequentially arranged in the length direction of the elastic member, the bending portion is bent in a direction away from the rotating shaft, and the contact portion is in interference fit with the rotating shaft.

3. The rotating shaft mechanism according to claim 1, characterized in that: The contact portion and part of the bent portion are stacked in a thickness direction of the elastic member, and the contact portion is in interference fit with the rotating shaft.

4. The rotating shaft mechanism according to any one of claims 1 to 3, characterized in that: The contact portion is bent toward the direction of the rotating shaft, or an extending direction of the contact portion is arranged parallel to an extending direction of the fixing portion.

5. The rotating shaft mechanism according to any one of claims 1 to 3, characterized in that: The fixing portion includes a first section and a second section, wherein the first section and the second section are connected to the base at intervals and are respectively located on both sides of the radial direction of the rotating shaft; The bending portion and the contact portion are both located in the gap area between the first section and the second section, one end of the bending portion is connected to the first section, and the other end of the bending portion is connected to the contact portion, the bending portion bends and extends between the first section and the contact portion, and one end of the contact portion away from the bending portion is connected to the second section.

6. The rotating shaft mechanism according to any one of claims 1 to 3, characterized in that: The contact portion contacts the rotating shaft along a circumferential direction of the rotating shaft, or the contact portion contacts the rotating shaft along an axial direction of the rotating shaft.

7. The rotating shaft mechanism according to any one of claims 1 to 3, characterized in that: The shaft mechanism further includes a shaft sleeve, the shaft sleeve is fixedly connected to the base, the shaft sleeve is also rotatably connected to the shaft, the shaft sleeve is provided with a through hole, and the through hole penetrates the shaft sleeve along the thickness direction of the shaft sleeve; The fixing portion is fixedly connected to the sleeve, the fixing portion and the bending portion are both located on a side of the sleeve away from the base, and at least part of the contact portion is located in the through hole and contacts the rotating shaft located in the through hole.

8. The rotating shaft mechanism according to claim 7, characterized in that: The base is provided with a first rotation groove, and the shaft sleeve is provided with a second rotation groove. The second rotation groove cooperates with the first rotation groove to accommodate the rotating shaft and limit the rotating shaft between the base and the shaft sleeve.

9. The rotating shaft mechanism according to claim 8, characterized in that: There is a gap between the inner wall of the first rotating groove and the outer surface of the rotating shaft, or the inner wall of the first rotating groove abuts against the outer surface of the rotating shaft; There is a gap between the inner wall of the second rotation groove and the outer surface of the rotation shaft, or the inner wall of the second rotation groove abuts against the outer surface of the rotation shaft.

10. The rotating shaft mechanism according to claim 7, characterized in that: The sleeve includes a main body and at least two retaining walls, part of the main body is located between the fixing portion and the base, the main body is provided with the through hole, at least two retaining walls are protruded from the surface of the main body away from the rotating shaft and are located on both sides of the width direction of the elastic member, and at least part of the projection of the elastic member along the width direction of the elastic member falls on at least two retaining walls.

11. The rotating shaft mechanism according to claim 10, characterized in that: The rotating shaft mechanism also includes a sleeve, which is fixedly connected to the body or the base and is located between the body and the base. The sleeve is also sleeved on the rotating shaft, and the rotating shaft can rotate relative to the sleeve.

12. A display device, characterized in that: The display device comprises a bottom shell, an optical element and a hinge mechanism as described in any one of claims 1 to 11, wherein the hinge mechanism is connected between the bottom shell and the optical element and rotatably connects the optical element to the bottom shell.

13. A means of transport, characterized in that: The vehicle comprises the display device of claim 12.

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