Adjusting device of HUD reflecting mirror and HUD display system

Abstract

The embodiment of the invention provides an HUD reflector adjusting device and an HUD display system. An adjusting device of an HUD reflector belongs to the technical field of HUD display. The adjusting device of the HUD reflecting mirror comprises a driving unit which comprises a driving module and a driving part arranged on the driving module; the two force transmission parts are respectively in transmission connection with the driving part; each force transmission part is connected with a transmission assembly, each transmission assembly comprises a first transmission part and a second transmission part, the first transmission parts are in transmission connection with the force transmission parts, and the first transmission parts drive the second transmission parts to rotate; the second transmission part is configured to drive the reflector to turn over. According to the adjusting device of the HUD reflecting mirror provided by the embodiment of the invention, through the scheme that one driving unit is combined with two force transmission components and two sets of transmission assemblies, the double-point synchronous driving effect on the reflecting mirror is achieved, it is ensured that the reflecting mirror is stably overturned in the overturning process, and the overall modal strength of the reflecting mirror can also be effectively improved.

Description

TECHNICAL FIELD

[0001] Embodiments of the present application relate to the technical field of HUD display, and more particularly, to a HUD mirror adjusting device and a HUD display system. BACKGROUND

[0002] At present, the field of view (FOV) of the head-up display (HUD) is gradually evolving from narrow to wide or even super-wide, which puts higher requirements on the dynamic stability of the head-up display system.

[0003] In the mainstream HUD structure design framework, the driving mode of the large-size mirror assembly generally adopts a single-point driving mode, and the driving position can be divided into two types: center layout and offset layout. Since the spatial configuration of the driving point directly determines the modal characteristics and structural stiffness of the mirror assembly, when the driving point is located at the geometric center of the mirror bottom surface, the system modal can reach the optimal solution, and the vibration response is the lowest; when the driving point is offset to the edge area of the mirror, the modal intensity of the mirror assembly will be significantly deteriorated, which is easy to cause resonance risk.

[0004] However, due to the space constraints and integration requirements of the vehicle instrument panel, the actual arrangement of the driving point is often difficult to completely follow the theoretical optimal position (such as the center layout), especially in compact vehicles or highly integrated cockpit architectures, the driving point is forced to be laterally offset, which directly leads to the decrease of the modal intensity of the mirror assembly, and may cause image jitter, virtual image distortion and other performance problems under complex working conditions (such as road excitation, engine vibration).

[0005] Therefore, it is necessary to provide a new technical solution to solve the above technical problems. SUMMARY

[0006] The purpose of the present application is to provide a new technical solution of a HUD mirror adjusting device and a HUD display system.

[0007] In a first aspect, the embodiments of the present application provide a HUD mirror adjusting device. The HUD mirror adjusting device comprises: a driving unit comprising a driving module and a driving component arranged on the driving module; two force transmission components, the two force transmission components are respectively in transmission connection with the driving component; Each of the force transmission components is connected with a transmission assembly, and the transmission assembly comprises: a first transmission member and a second transmission member, the first transmission member is in transmission connection with the force transmission component, and the first transmission member drives the second transmission member to rotate; The second transmission member is configured to drive the mirror to flip.

[0008] Optionally, each of the force transmission components is directly connected with the driving component; or one of the two force transmission components is directly connected with the driving component, and the other force transmission component is indirectly connected with the driving component.

[0009] Optionally, the driving component is a driving gear, and the two force transmission components are arranged in a radial direction of the driving gear; or the two force transmission components are arranged in an axial direction of the driving gear and are both arranged outside the driving gear.

[0010] Optionally, two sides of the driving component in the radial direction are respectively provided with first elastic components, and the first elastic components are in contact with surfaces of the force transmission components away from the driving component.

[0011] Optionally, the adjusting device further comprises a first support frame, the first support frame comprises a first support frame body and a mounting frame body connected with the first support frame body, the driving module is arranged in the first support frame body, and the driving component is arranged in the mounting frame body. A side surface of the mounting frame body is provided with a through hole, and at least part of the force transmission component is located outside the mounting frame body through the through hole.

[0012] Optionally, the first transmission member comprises a worm wheel, the second transmission member comprises a worm connected with the worm wheel, the worm wheel is directly engaged with the force transmission component, and the worm drives the mirror to overturn.

[0013] Optionally, the adjusting device further comprises a second support frame, the second support frame comprises a second support frame body and a support plate, the force transmission component is arranged in the second support frame body away from the driving component, and the first transmission member is arranged in the second support frame body. The second support frame body comprises a first connecting plate arranged opposite to the support plate, the first connecting plate is provided with a second mounting hole, and at least part of the first transmission member penetrates through the second mounting hole. The support plate is provided with a first mounting hole, the second transmission member extends out of the second support frame body, and an end of the second transmission member away from the first transmission member penetrates through the first mounting hole and is sleeved with a shaft sleeve.

[0014] Optionally, the second support frame further comprises an elastic assembly, the elastic assembly comprises an elastic sheet, the first connecting plate is further provided with a mounting component, the elastic assembly is clamped in the second support frame body through the mounting component, and at least part of the first transmission member is in contact with the elastic sheet.

[0015] Optionally, the second support frame further comprises a second connecting plate connecting the first connecting plate and the support plate, and the second connecting plate is formed with a second elastic component in contact with the bottom surface of the force transmission component.

[0016] Optionally, the two sides of the second connecting plate are respectively provided with a third elastic component in contact with the side end surface of the force transmission component.

[0017] Optionally, the second support frame further comprises a mounting bottom plate located below the second connecting plate. The second support frame further comprises a pre-pressure adjusting component connected to the second connecting plate and the mounting bottom plate to adjust the matching gap between the second transmission component and the mirror.

[0018] Optionally, the second connecting plate is provided with a first connecting hole, and the mounting bottom plate is provided with a second connecting hole corresponding to the first connecting hole. The pre-pressure adjusting component comprises a guide component and an elastically deformed component sleeved on the guide component, the guide component penetrates through the first connecting hole and the second connecting hole, and the elastically deformed component is located between the second connecting plate and the mounting bottom plate.

[0019] Optionally, the mirror comprises a transmission support provided with a helical gear matched with the second transmission component.

[0020] In a second aspect, the embodiments of the present application further provide a HUD display system. The HUD display system comprises the adjusting device of the HUD mirror according to the first aspect.

[0021] One technical effect of the present application is that: According to the adjusting device of the HUD mirror provided by the embodiments of the present application, the double-point synchronous driving effect of the mirror can be realized by the scheme of one driving unit combined with two force transmission components and two sets of transmission assemblies. This double-point driving scheme not only ensures that the mirror remains stable and smooth during the flipping process, avoiding adverse phenomena such as shaking or lag, but also effectively improves the modal strength of the whole mirror, enhances its ability to resist external interference and vibration, and thus guarantees that the mirror can stably and reliably operate in various working environments.

[0022] Other features and advantages of the present application will become apparent from the following detailed description of exemplary embodiments thereof, taken in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0023] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the specification and, together with the description, serve to explain the principles of the specification.

[0024] Figure 1 Shown is a structural diagram of the adjustment device of the HUD reflector provided in an embodiment of the present application.

[0025] Figure 2 Shown is a structural diagram of the assembly of the drive unit and the force transmission component provided in an embodiment of the present application.

[0026] Figure 3 Shown is an installation structure diagram of the drive module provided in an embodiment of the present application.

[0027] Figure 4 Shown is an assembly structure diagram of the driving component and driving module provided in an embodiment of the present application.

[0028] Figure 5 Shown is a cross-sectional view of the first support frame, driving component and force transmission component provided in an embodiment of the present application.

[0029] Figure 6 Shown is a structural diagram of the cooperation between the driving component and the force transmission component provided in an embodiment of the present application.

[0030] Figure 7 Shown is a structural diagram of the first support frame provided in an embodiment of the present application.

[0031] Figure 8a and Figure 8b Shown is an assembly structure diagram of the force transmission component and transmission assembly provided in an embodiment of the present application.

[0032] Figure 9 Shown is a partial structural exploded view of the assembly structure of the force transmission component and the transmission assembly provided in an embodiment of the present application.

[0033] Figure 10 Shown is a cross-sectional view of the assembly structure of the force transmission component and the transmission assembly provided in an embodiment of the present application.

[0034] Figure 11 Shown is a cross-sectional view of a transmission assembly provided in an embodiment of the present application.

[0035] Figure 12 Shown is a structural diagram of the second support frame provided in an embodiment of the present application.

[0036] Figure 13 Shown is a structural diagram of the elastic component provided in an embodiment of the present application.

[0037] Figure 14 Shown is an installation structure diagram of the pre-pressure adjustment component provided in an embodiment of the present application.

[0038] Figure 15 Fig. 4 shows a structure diagram of a mirror provided by an embodiment of the present application.

[0039] Figure 16 Fig. 5 shows a structure diagram of a mirror provided by an embodiment of the present application.

[0040] Figure 17 Fig. 6 shows a structure diagram of an arrangement of a driving unit, a force transmission component and a transmission assembly provided by an embodiment of the present application.

[0041] Legend of reference signs: 1. driving unit; 10. driving module; 101. connecting shaft; 102. output shaft; 11. driving component; 2. force transmission component; 21. first force transmission component; 22. second force transmission component; 3. transmission assembly; 31. first transmission component; 32. second transmission component; 4. mirror; 41. mirror body; 42. mirror support; 43. transmission support; 44. overturning support; 431. bevel gear; 5. first support frame; 51. first support frame body; 511. mounting groove; 52. mounting frame body; 521. first elastic component; 522. through hole; 6. second support frame; 61. second support frame body; 62. support plate; 63. elastic assembly; 64. mounting bottom plate; 65. pre-pressing force adjusting component; 621. first mounting hole; 622. shaft sleeve; 611. first connecting plate; 6111. second mounting hole; 6112. mounting component; 631. elastic sheet; 632. first elastic connecting plate; 633. second elastic connecting plate; 634. third elastic connecting plate; 635. fourth elastic connecting plate; 612. second connecting plate; 6121. second elastic component; 6122. third elastic component; 6123. first connecting hole; 61231. first abutting surface; 641. second connecting hole; 6411. second abutting surface; 651. guide component; 652. elastically deformable component. DETAILED DESCRIPTION

[0042] Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. If desired, the relative arrangements of the components and steps illustrated in these embodiments, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present application.

[0043] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way limiting to the scope of the application or its applications or uses.

[0044] Techniques and devices known to those of ordinary skill in the relevant art can not be discussed in detail herein, but should be considered as part of the specification.

[0045] In all of the examples shown and discussed herein, any specific values should be interpreted as merely exemplary and not limiting. Thus, other examples of the exemplary embodiments can have different values.

[0046] It should be noted that like reference numerals and letters refer to like items throughout the several views, and thus a discussion of the same in one view is typically good for all like items in the other views.

[0047] The embodiments of the present application provide a kind of adjustment device of HUD mirror. Referring to Figure 1 , the adjustment device of HUD mirror includes: drive unit 1, two force components 2 and two sets of transmission assembly 3. Wherein, drive unit 1 includes drive module 10 and the drive component 11 of being arranged in the drive module 10. Two described force components 2 are respectively connected with the drive component 11 transmission connection. Each described force component 2 is connected with a transmission assembly 3, and transmission assembly 3 includes: first transmission piece 31 and second transmission piece 32, the first transmission piece 31 is connected with the drive component 11 transmission connection, the first transmission piece 31 drives the second transmission piece 32 rotation;Second transmission piece 32 is configured to drive mirror 4 overturn.

[0048] In the embodiments of the present application, referring to Figure 15 And Figure 16 , the adjustment device of HUD mirror is used to drive mirror 4 overturn, especially for driving the mirror 4 overturn of large aperture FOV even super large aperture FOV.

[0049] The main components of the adjustment device of HUD mirror provided by the embodiments of the present application are explained as follows, and the adjustment device of HUD mirror mainly includes drive unit 1, two force components 2 and two sets of transmission assembly 3.

[0050] In the embodiments of the present application, referring to Figure 2 And Figure 4 , drive unit 1 includes drive module 10 and drive component 11. Drive module 10 generates driving force according to control signal, and distributes driving force to two force components 2 through drive component 11.

[0051] Exemplarily, drive module 10 includes motor, for example, drive module 10 is step motor or servo motor and the like. Drive component 11 includes but is not limited to transmission shaft, gear and the like.

[0052] In a specific embodiment, drive module 10 is a step motor, and drive component 11 is a straight gear.

[0053] In the adjusting device for the HUD mirror in the embodiment of the present application, two force transmission components 2 are respectively in transmission connection with the driving component 11, and each force transmission component 2 is connected with a transmission assembly 3. In this way, the adjusting device for the HUD mirror contains two sets of transmission assemblies 3, and the setting of the two sets of transmission assemblies 3 ensures that the adjusting device for the HUD mirror can realize double-point driving (applying driving force at two different positions of the mirror 4) on the mirror 4. Since the two sets of transmission assemblies 3 are driven by the same driving unit 1 through the force transmission component 2, it is ensured that the adjusting device for the HUD mirror can realize double-point synchronous driving (applying driving force at two different positions of the mirror 4 at the same time) on the mirror 4. Therefore, in the embodiment of the present application, the main role of the force transmission component 2 is to transmit the driving force generated by the driving component 11 to the transmission assembly 3, and to maintain the transmission efficiency and stability of the driving force.

[0054] Exemplarily, the force transmission component 2 includes but is not limited to a rack, a synchronous belt or a rigid universal shaft, etc. In the case where the force transmission component 2 is a rack, the driving component 11 can be a gear meshing with the rack. In the case where the force transmission component 2 is a synchronous belt (for example, a gear belt), the driving component 11 can be a belt pulley cooperating with the belt. In the case where the force transmission component 2 is a rigid universal shaft, the driving component 11 can be a shaft coupling or the like.

[0055] In the embodiment of the present application, each force transmission component 2 is connected with a transmission assembly 3, and the transmission assembly 3 is a component for transmitting driving force from the force transmission component 2 to the mirror 4. The transmission assembly 3 includes a first transmission member 31 and a second transmission member 32.

[0056] The first transmission member 31 is in transmission connection with the force transmission component 2, and the first transmission member 31 receives the driving force transmitted by the force transmission component 2. Specifically, the first transmission member 31 serves as an intermediate transmission link to further transmit and convert the driving force into a form suitable for the second transmission member 32 to receive. The first transmission member 31 includes but is not limited to a gear, a connecting rod or other transmission mechanism, and the specific form depends on the design requirement.

[0057] The second transmission member 32 is connected with the first transmission member 31 and rotates under the driving of the first transmission member 31. The second transmission member 32 is directly in transmission connection with the mirror 4 and is responsible for converting the driving force into the overturning movement of the mirror 4. The design of the second transmission member 32 directly determines the overturning mode of the mirror 4.

[0058] In the embodiments of the present application, the double-point synchronous driving (applying driving force at two different positions of the mirror 4 at the same time) of the mirror 4 is realized by one driving unit 1 combined with two force transmission components 2 and two sets of transmission assemblies 3, and the smooth overturning of the mirror 4 and the modal strength of the mirror 4 are realized by the double-point synchronous driving scheme. That is, the adjusting device of the HUD mirror provided in the embodiments of the present application can realize the double-point synchronous driving effect of the mirror 4 by the scheme of one driving unit 1 combined with two force transmission components 2 and two sets of transmission assemblies 3. This double-point driving scheme not only can ensure that the mirror remains stable and smooth during overturning, avoids adverse phenomena such as shaking or lag, but also can effectively improve the modal strength of the mirror 4 as a whole, enhance the ability to resist external interference and vibration, and thus ensure that the mirror can stably and reliably operate in various working environments.

[0059] Specifically, the driving force is applied at two positions of the mirror 4 (the two positions can be symmetrically arranged or asymmetrically arranged), and the driving force can be equal in size and same in direction, so as to ensure that the mirror 4 overturns stably. In addition, the double-point driving makes the force applied to the mirror 4 more uniform, improves the rigidity and modal strength of the overall structure, enhances the ability of the mirror 4 to resist external interference, and avoids problems such as a decrease in driving force and poor overall modal strength caused by single-point driving or offset driving.

[0060] In some specific embodiments, with reference to Figure 2 , Figure 5 , Figure 6 , each of the force transmission components 2 is directly connected with the driving component 11; or with reference to Figure 17 , one of the two force transmission components 2 is directly connected with the driving component 11, and the other force transmission component 2 is indirectly connected with the driving component 11.

[0061] In one example, with reference to Figure 2 , Figure 5 and Figure 6 , the two force transmission components 2 are located on both sides of the driving component 11 in the radial direction (specifically, on the upper and lower sides of the driving component 11 in the radial direction), that is, the force transmission components 2 and the driving component 11 are connected in a double-sided direct connection manner. For example, the driving component 11 is a driving gear, and the two force transmission components 2 are located above or below the driving gear.

[0062] Continuing to refer to Figure 6 , the two force transmission components 2 include a first force transmission component 21 and a second force transmission component 22, the first force transmission component 21 is located above the driving gear and engages with the driving gear, and the second force transmission component 22 is located below the driving gear and engages with the driving gear.

[0063] In this example, each force transmission component 2 is directly connected with the driving component 11, and the driving component 11 can be located at the middle position of the mirror 4 or be arranged offset relative to the middle position of the mirror 4.

[0064] In this example, referring to Figure 1 , each force transmission component 2 is directly connected with the driving component 11, and the transmission assembly 3 connected with the two force transmission components 2 can be located at the left and right (horizontal direction) of the driving unit 1.

[0065] In another example, referring to Figure 17 , the two force transmission components 2 are connected with the driving component 11 in a single-side direct connection + indirect connection mode to form a master-slave driving structure. For example: Master transmission chain: driving component 11 → directly connected force transmission component 2 (force transmission component 2 directly connected with the driving component 11) → transmission assembly 3 → mirror 4.

[0066] Slave transmission chain: driving component 11 → intermediate transmission part (such as synchronous belt, gear pair) → indirectly connected force transmission component 2 (force transmission component 2 indirectly connected with the driving component 11) → transmission assembly 3 → mirror 4.

[0067] In this example, the driving component 11 can be located at the middle position of the mirror 4 or be arranged offset relative to the middle position of the mirror 4.

[0068] In this embodiment, the adjustment device of the HUD mirror is applied to high-end vehicles, and the two force transmission components 2 can be connected with the driving component 11 in a double-side direct connection mode. The adjustment device of the HUD mirror is applied to economy vehicles, and the two force transmission components 2 can be connected with the driving component 11 in a single-side direct connection + indirect connection mode.

[0069] In some specific embodiments of the present application, referring to Figure 6 , the driving component 11 is a driving gear, and the two force transmission components 2 are arranged in a radial direction of the driving gear; or the two force transmission components 2 are arranged in an axial direction of the driving gear and are both arranged outside the driving gear.

[0070] In one example, referring to Figure 6 , the driving component 11 is a driving gear, and the force transmission component 2 is a rack. The two racks are arranged in a radial direction of the driving gear, one rack is located above the driving gear and meshes with the driving gear, and the other rack is located below the driving gear and meshes with the driving gear. In this example, the driving gear and the rack are connected in a double-side direct connection mode.

[0071] In another example, the driving component 11 is a driving gear, the force transmission component 2 is a synchronous belt, the driving gear has a long axial dimension, one of the synchronous belts is matched with one part of the teeth of the driving gear, the other end of the synchronous belt includes another gear for matching with a set of transmission assemblies 3; the other synchronous belt is matched with the other part of the teeth of the driving gear, the other end of the synchronous belt includes another gear for matching with another set of transmission assemblies 3. In this example, the driving gear and the synchronous belt are connected in a double-side direct connection mode.

[0072] In an optional example, referring to Figure 17 , the driving component 11 is a driving gear, the force transmission component 2 is a synchronous belt, one of the synchronous belts is directly matched with the driving gear, the other end of the synchronous belt includes another gear, which is connected with a set of transmission assemblies 3 and matched with another force transmission component 2 (synchronous belt), so that the two force transmission components 2 are connected with the driving component 11 in a single-side direct connection + indirect connection mode.

[0073] In the above three examples, the types of the two force transmission components 2 can be the same or different. For example, the types of the two force transmission components 2 are different, one force transmission component 2 can be a gear, and the other force transmission component 2 can be a synchronous belt.

[0074] In the embodiments of the present application, referring to Figure 2 and Figure 5 , the two sides of the driving component 11 in the radial direction are respectively provided with first elastic components 521, and the first elastic components 521 are in contact with the surfaces of the force transmission components 2 away from the driving component 11.

[0075] In this embodiment, when the driving component 11 is a driving gear or a transmission shaft, the two sides of the driving component 11 in the radial direction are respectively provided with first elastic components 521, the lower surface of one of the first elastic components 521 is in contact with one force transmission component 2 to form a pre-pressure, and the upper surface of the other first elastic component 521 is in contact with the other force transmission component 2 to form a pre-pressure, so as to eliminate the matching gap between the force transmission component 2 and the driving component 11 and improve the transmission accuracy. For example, the force transmission component 2 is a rack, and the driving component 11 is a driving gear. Through the first elastic components 521, the meshing gap between the rack and the driving gear can be eliminated, and the transmission accuracy can be improved.

[0076] For example, when the adjusting device includes a first support frame 5, the first elastic components 521 are formed on the first support frame 5.

[0077] In the embodiments of the present application, referring to Figure 3 and Figure 7The adjusting device further comprises a first support frame 5, the first support frame 5 comprises a first support frame body 51 and a mounting frame body 52 connected with the first support frame body 51, the driving module 10 is arranged in the first support frame body 51, and the driving component 11 is arranged in the mounting frame body 52. The side surface of the mounting frame body 52 is provided with a through hole 522, and at least part of the force transmission component 2 is located outside the mounting frame body 52 through the through hole 522.

[0078] In this embodiment, referring to Figure 3 and Figure 7 , the adjusting device further comprises a first support frame 5, the first support frame 5 comprises a first support frame body 51 and a mounting frame body 52, the first support frame body 51 and the mounting frame body 52 can be connected by a fastener, or the first support frame body 51 and the mounting frame body 52 can be formed in an integrated manner.

[0079] In this embodiment, the driving module 10 in the driving unit 1 is arranged in the first support frame body 51. For example, the driving module 10 is a motor, the first support frame body 51 is provided with a mounting groove 511, and the connecting shaft 101 of the motor matches the inner surface of the mounting groove 511 to form a limit.

[0080] In this embodiment, the driving component 11 in the driving unit 1 is arranged in the mounting frame body 52, and the driving component 11 cooperates with the shaft hole of the driving unit 1. For example, referring to Figure 4 , the driving module 10 is a motor, and the driving component 11 is a driving gear, the output shaft 102 of the motor cooperates with the inner hole of the driving gear. Specifically, referring to Figure 4 , the outer arc surface of the output shaft 102 of the motor matches the inner hole arc surface of the driving gear to realize radial limiting, and the flat surface of the output shaft 102 of the motor cooperates with the inner hole flat surface of the driving gear to realize the rotation stopping function of the driving gear.

[0081] In this embodiment, referring to Figure 2 and Figure 3 , at least part of the two force transmission components 2 is also arranged in the mounting frame body 52, so as to facilitate the cooperation of the two force transmission components 2 with the driving component 11. For example, referring to Figure 7 , the mounting frame has oppositely arranged third and fourth surfaces, and two through holes 522 are arranged in the third and fourth surfaces. For example, taking the rack as the force transmission component 2: the first force transmission component 21 passes through one through hole 522 of the third surface and extends out of the through hole 522 of the fourth surface, and the lower end tooth surface of the first force transmission component 21 meshes with the tooth surface of the driving gear; the second force transmission component 22 passes through the other through hole 522 of the third surface and extends out of the other through hole 522 of the fourth surface, and the upper end tooth surface of the second force transmission component 22 meshes with the tooth surface of the driving gear, Exemplarily, referring to Figure 2 , the mounting frame 52 comprises two oppositely arranged first and second surfaces, the first elastic component 521 is formed on the first surface, and the second elastic component 6121 is formed on the second surface. In the case where the mounting frame 52 comprises a first surface, a second surface, a third surface and a fourth surface, the first surface, the second surface, the third surface and the fourth surface are connected to form the mounting frame 52.

[0082] Optionally, the adjusting device further comprises a bottom shell, and the first support frame 5 is connected with the bottom shell through fasteners.

[0083] In the embodiments of the present application, referring to Figure 8a and Figure 8b , the first transmission member 31 comprises a worm gear, the second transmission member 32 comprises a worm connected with the worm gear, the worm gear is directly engaged with the force transmission component 2, and the worm drives the mirror 4 to overturn.

[0084] In this embodiment, the adjusting device comprises a first force transmission component 21 and a second force transmission component 22, both of which are racks. Referring to Figure 8b , the first force transmission component 21 is located above the driving component 11, and the transmission assembly 3 is matched with the downwardly arranged tooth surface of the first force transmission component 21. Referring to Figure 8a , the second force transmission component 22 is located below the driving component 11, and the transmission assembly 3 is matched with the upwardly arranged tooth surface of the second force transmission component 22.

[0085] The following will be described taking the second force transmission component 22 connected with the transmission assembly 3 as an example: Referring to Figure 8a , the first transmission member 31 is a worm gear, the worm gear is matched with the second force transmission component 22, and the second force transmission component 22 drives the worm gear to rotate. The second transmission member 32 is a worm, the worm gear drives the worm to rotate, and then the worm drives the mirror 4 to overturn. In this embodiment, the self-locking property of the worm gear and the worm can avoid the mirror 4 from shaking.

[0086] Exemplarily, the output shaft of the worm gear can be rigidly connected with the second transmission member 32 (worm) through a key connection mode to form a coaxial rotating structure. Or the worm gear and the worm are an integral structure. The worm is the final execution element, the helical tooth surface of the worm is engaged with the transmission bracket 43 (helical gear 431) of the mirror 4, and the rotating motion is converted into the overturning motion of the mirror 4 around the mirror bracket 42.

[0087] Optionally, the transmission assembly 3 comprises but is not limited to a worm gear and worm structure. For example, the transmission assembly 3 can be a gear set structure.

[0088] In the embodiments of the present application, referring toFigure 9 and Figure 12 The adjusting device further comprises a second support frame 6, the second support frame 6 comprises a second support frame body 61 and a support plate 62, the force transmission component 2 is arranged in the second support frame body 61 away from the driving component 11, and the first transmission member 31 is arranged in the second support frame body 61; The second support frame 61 comprises a first connecting plate 611 arranged opposite to the support plate 62, the first connecting plate 611 is provided with a second mounting hole 6111, and at least part of the first transmission member 31 penetrates through the second mounting hole 6111; The support plate 62 is provided with a first mounting hole 621, the second transmission member 32 extends out of the second support frame 61, and an end of the second transmission member 32 away from the first transmission member 31 penetrates through the first mounting hole 621 and is sleeved with a shaft sleeve 622.

[0089] In this embodiment, referring to Figure 9 and Figure 12 The adjusting device comprises a second support frame 6, the second support frame 6 comprises a second support frame body 61 and a support plate 62, and the second support frame body 61 and the support plate 62 can be formed in an integral molding manner.

[0090] Taking the second force transmission component 22 as a rack as an example for description: Referring to Figure 9 and Figure 10 One end of the rack is arranged in the first support frame 51, and the end of the rack is matched with the driving component 11. The other end of the rack is arranged in the second support frame 61, and the end of the rack is matched with the first transmission member 31 in the transmission assembly 3. In this way, the driving force generated by the driving component 11 can be transmitted to the first transmission member 31 through the rack.

[0091] In this embodiment, taking the transmission assembly 3 as a worm gear as an example for description: Referring to Figure 9 and Figure 11 The rotating shaft of the worm gear is an axis core made of metal material, the tail end of the worm shaft core is matched with the first mounting hole 621 arranged on the support plate 62, and the tail end of the worm shaft core penetrates through the first mounting hole 621 and is sleeved with the shaft sleeve 622. The shaft sleeve 622 is matched with the first mounting hole 621 in a small gap, which not only ensures the rotation accuracy, but also reduces the friction resistance. The worm gear shaft core away from the tail end of the worm is matched with the second mounting hole 6111 arranged on the first connecting plate 611.

[0092] In this embodiment, the adjusting device comprises a second support frame 6, the second support frame 6 comprises a first connecting plate 611 and a support plate 62 arranged opposite to each other, and the first connecting plate 611 and the support plate 62 serve as a support carrier for installing the transmission assembly 3.

[0093] In the embodiments of the present application, with reference to Figure 9 , Figure 11 and Figure 13 , the second support frame 6 further comprises an elastic assembly 63, the elastic assembly 63 comprises an elastic sheet 631, the second support frame body 61 further comprises a mounting component 6112, the elastic assembly 63 is clamped on the second support frame body 61 through the mounting component 6112, and the at least part of the first transmission member 31 is in contact with the elastic sheet 631.

[0094] In this embodiment, the second support frame 6 further comprises an elastic assembly 63, which can be clamped on the second support frame through the mounting component 6112. For example, in combination with the structure of the elastic assembly 63, the second support frame body 61 is provided with a mounting component 6112 matching the structure of the elastic assembly 63, which can be a mounting hole or a plurality of mounting holes.

[0095] The elastic assembly 63 comprises an elastic sheet 631, after the worm shaft core tail end penetrates the second mounting hole 6111, the tail end surface of the worm shaft core matches the elastic sheet 631. Specifically, the surface of the elastic sheet 631 close to the worm shaft core is provided with a protrusion, and the tail end surface of the worm shaft core is in contact with the protrusion formed by the elastic sheet 631. Since the protrusion has elastic pre-pressing, it can play a role in pre-pressing the worm shaft in the axial direction.

[0096] In one specific embodiment, with reference to Figure 13 , the elastic assembly 63 comprises a first elastic connecting plate 632, a second elastic connecting plate 633 connected with the first elastic connecting plate 632, a third elastic connecting plate 634 connected with the second elastic connecting plate 633 and arranged opposite to the first elastic connecting plate 632, and a fourth elastic connecting plate 635 connected with the third elastic connecting plate 634 and arranged opposite to the second elastic connecting plate 633. The elastic sheet 631 is formed on the third elastic connecting plate 634.

[0097] With reference to Figure 11 and Figure 12 , the mounting component 6112 comprises a first matching hole and a second matching hole, and the first matching hole and the second matching hole are located on both sides of the second mounting hole 6111. The first elastic connecting plate 632 extends into the first matching hole, and the fourth elastic connecting plate 635 extends into the second matching hole, so that the elastic assembly 63 is clamped on the second support frame body 61. In the case that the first elastic connecting plate 632 extends into the first matching hole, the first elastic connecting plate 632 and the first connecting plate 611 of the second support frame body 61 are arranged in parallel, specifically, the surface of the first elastic connecting plate 632 is arranged in close contact with the first connecting plate 611, and the surface of the first elastic connecting plate 632 close to the worm shaft core can be provided with a clamping groove, which can be matched with the worm shaft core to achieve limiting.

[0098] In the case that the elastic assembly 63 is clamped on the second support frame 61, the third elastic connecting plate 634 is arranged in parallel with the first connecting plate 611 outside the first connecting plate 611, the tail end of the worm shaft core penetrates through the first mounting hole 621 and can just contact the elastic sheet 631 formed by the third elastic connecting plate 634, thereby forming an axial pre-pressing effect on the worm and gear installation.

[0099] In the embodiments of the present application, referring to Figure 12 and Figure 10 , the second support frame 61 further comprises a second connecting plate 612 connecting the first connecting plate 611 and the support plate 62, and the second connecting plate 612 is formed with a second elastic component 6121, which is in contact with the bottom surface of the force transmission component 2.

[0100] In this embodiment, the second support frame 61 further comprises a second connecting plate 612 connecting the first connecting plate 611 and the support plate 62, so that the second support frame 61 and the support plate 62 form an integral structure.

[0101] The second connecting plate 612 is formed with a second elastic component 6121, which is in contact with the bottom surface of the force transmission component 2 when the force transmission component 2 is arranged in the second support frame 61, so that the second elastic component 6121 can apply a pre-pressing force to the force transmission component 2 to eliminate the fitting gap between the force transmission component 2 and the first transmission member 31.

[0102] Exemplarily, the force transmission component 2 is a rack, and the first transmission member 31 is a worm, and the meshing gap between the rack and the worm can be eliminated by the contact between the second elastic component 6121 and the force transmission component 2, thereby improving the transmission accuracy.

[0103] In the embodiments of the present application, referring to Figure 12 , the two sides of the second connecting plate 612 are respectively provided with a third elastic component 6122, which is in contact with the side end surface of the force transmission component 2.

[0104] In this embodiment, one third elastic component 6122 is arranged on each of the opposite sides of the second connecting plate 612, and the two third elastic components 6122 are respectively in contact with the side end surfaces of the force transmission component 2 when the force transmission component 2 is arranged in the second support frame 61, thereby playing a limiting and guiding role on the force transmission component 2.

[0105] In the embodiments of the present application, referring to Figure 9 , Figure 11 and Figure 14The second support frame 6 further comprises a mounting bottom plate 64, which is located below the second connecting plate 612. The second support frame 6 further comprises a pre-pressure adjusting component 65, which is connected to the second connecting plate 612 and the mounting bottom plate 64, so as to adjust the matching gap between the second transmission component 32 and the mirror 4.

[0106] In this embodiment, the second support frame 6 further comprises the pre-pressure adjusting component 65, which is connected to the second connecting plate 612 and the mounting bottom plate 64, and directly adjusts the gap between the second connecting plate 612 and the mounting bottom plate 64. Since the transmission assembly 3 is arranged on the first connecting plate 611 and the support plate 62 which are connected to the second connecting plate 612, the pre-pressure adjusting component 65 directly adjusts the gap between the second connecting plate 612 and the mounting bottom plate 64, and essentially adjusts the matching gap between the first transmission component 31 and the force transmission component 2, and also adjusts the matching gap between the second transmission component 32 and the mirror 4.

[0107] For example, in the case that the force transmission component 2 is a rack, the first transmission component 31 is a worm gear, the second transmission component 32 is a worm, and the mirror 4 is provided with a helical gear 431 matched with the worm, the pre-pressure adjusting component 65 eliminates the meshing gap between the rack and the worm gear, and also eliminates the meshing gap between the worm and the helical gear 431.

[0108] In addition, since the second elastic component 6121 is further arranged on the second connecting plate 612, the pre-pressure adjusting component 65 adjusts the gap between the second connecting plate 612 and the mounting bottom plate 64, and the second elastic component 6121 can further eliminate the matching gap between the first transmission component 31 and the force transmission assembly.

[0109] In the specific embodiments of the present application, with reference to Figure 9 , Figure 11 and Figure 14 , the second connecting plate 612 is provided with a first connecting hole 6123; the mounting bottom plate 64 is provided with a second connecting hole 641 corresponding to the first connecting hole 6123; The pre-pressure adjusting component 65 comprises a guide component 651 and an elastically deformed component 652 sleeved on the guide component 651, the guide component 651 penetrates through the first connecting hole 6123 and the second connecting hole 641, and the elastically deformed component 652 is located between the second connecting plate 612 and the mounting bottom plate 64.

[0110] In this embodiment, the pre-pressure adjusting component 65 comprises a guide component 651, which can be a guide pin. The pre-pressure adjusting component 65 further comprises an elastically deformed component 652, which can be a pre-pressure spring.

[0111] In this embodiment, the second connecting plate 612 is provided with a first connecting hole 6123, which can be a threaded hole. The mounting bottom plate 64 is provided with a second connecting hole 641, which can be a stepped hole. The stepped hole is a small hole close to the opening of the second connecting plate 612, and is a large hole away from the opening of the second connecting plate 612. In the installation process of the guide pin, the shaft part of the guide pin penetrates the large hole and the small hole in turn, and then penetrates the first connecting hole, so as to connect the second connecting plate 612 and the mounting bottom plate 64 together and adjust the distance between them.

[0112] In a specific embodiment, referring to Figure 14 , the guide pin penetrates the second connecting hole 641 of the mounting bottom plate 64 and penetrates the pre-pressure spring. The tail end thread of the guide pin is locked with the threaded hole of the second connecting plate 612. At this time, the upper surface of the pre-pressure spring is in contact with the lower surface (the first abutting surface 61231) of the threaded hole, and the lower surface of the pre-pressure spring is in contact with the upper surface (the second abutting surface 6411) of the mounting bottom plate 64. Through the cooperation of the guide pin and the pre-pressure spring, the cooperation gap between the first transmission member 31 and the force transmission component 2 is eliminated, and the cooperation gap between the second force transmission member and the mirror 4 is eliminated.

[0113] In the specific embodiments of the present application, referring to Figure 15 and Figure 16 , the mirror 4 comprises a transmission bracket 43, and the transmission bracket 43 is provided with a helical gear 431, which cooperates with the second transmission member 32.

[0114] In this embodiment, the mirror 4 comprises a mirror body 41, a transmission bracket 43, a mirror bracket 42 and a turnover bracket 44. The mirror body 41 is arranged on the mirror bracket 42. The transmission bracket 43 is screw-locked and connected with the mirror bracket 42 through its mounting hole and positioning hole, and the turnover bracket 44 is rotatable with the mirror bracket 42 through the shaft hole cooperation.

[0115] The helical gear 431 on the transmission bracket 43 is meshed with the second transmission member 32 (such as a worm) in the transmission assembly 3. The mirror 4 can realize the gapless meshing between the second transmission member 32 and the helical gear 431 in the transmission bracket through the pre-pressure adjusting component 65.

[0116] It should be particularly pointed out that in the field of HUD mirror structure, the specific structural design of the transmission bracket 43, the turnover bracket 44 and the mirror bracket 42, and the connection relationship between the transmission bracket 43 and the mirror bracket 42 and between the turnover bracket 44 and the mirror bracket 42 all belong to the technical content known by those skilled in the art. These known technical details will not be described here.

[0117] The embodiment of the present application also provides a HUD display system. The HUD display system comprises the adjusting device of the HUD mirror as described above.

[0118] In the embodiment of the present application, the adjusting device of the HUD mirror is applied to the HUD display system, and the HUD display system realizes the stable turnover of the mirror 4 and the modal strength of the mirror 4 through the double-point driving mode.

[0119] The above embodiment mainly describes the differences between various embodiments. The different optimization features between various embodiments can be combined to form a better embodiment as long as they are not contradictory. Considering the brevity of the writing, the details will not be described here.

[0120] Although some specific embodiments of the present application have been described in detail through examples, those skilled in the art should understand that the above examples are only for illustration and are not intended to limit the scope of the present application. Those skilled in the art should understand that the above embodiments can be modified without departing from the scope and spirit of the present application. The scope of the present application is defined by the appended claims.

Claims

1. A HUD reflector adjustment device, characterized in that: include: A drive unit (1) comprising a drive module (10) and a drive component (11) arranged on the drive module (10); Two force transmission components (2), the two force transmission components (2) are respectively in transmission connection with the driving component (11); Each of the force transmission components (2) is connected to a transmission assembly (3), and the transmission assembly (3) includes: a first transmission component (31) and a second transmission component (32), the first transmission component (31) is in transmission connection with the force transmission component (2), and the first transmission component (31) drives the second transmission component (32) to rotate; The second transmission member (32) is configured to drive the reflector (4) to flip.

2. The HUD reflector adjustment device according to claim 1, characterized in that: Each of the force transmission components (2) is directly connected to the driving component (11); or one of the two force transmission components (2) is directly connected to the driving component (11), and the other force transmission component (2) is indirectly connected to the driving component (11).

3. The HUD reflector adjustment device according to claim 1 or 2, characterized in that: The driving component (11) is a driving gear, and the two force transmission components (2) are arranged at intervals along the radial direction of the driving gear; or the two force transmission components (2) are arranged along the axial direction of the driving gear and are both sleeved on the outside of the driving gear.

4. The HUD reflector adjustment device according to claim 1, characterized in that: First elastic components (521) are respectively provided on both sides of the driving component (11) in a radial direction, and the first elastic components (521) are in contact with a surface of the force transmission component (2) facing away from the driving component (11).

5. The HUD reflector adjustment device according to claim 1, characterized in that: The regulating device further comprises a first support frame (5), the first support frame (5) comprising a first support frame (51) and a mounting frame (52) connected to the first support frame (51), the driving module (10) being arranged in the first support frame (51), and the driving component (11) being arranged in the mounting frame (52); A through hole (522) is provided on the side of the installation frame (52), and at least a portion of the force transmission component (2) passes through the through hole (522) and is located outside the installation frame (52).

6. The HUD reflector adjustment device according to claim 1, characterized in that: The first transmission member (31) includes a worm wheel, and the second transmission member (32) includes a worm connected to the worm wheel, the worm wheel directly meshes with the force transmission component (2), and the worm drives the reflector (4) to flip.

7. The HUD reflector adjustment device according to claim 1 or 6, characterized in that: The regulating device further comprises a second support frame (6), the second support frame (6) comprising a second support frame (61) and a support plate (62), the force transmission component (2) being arranged in the second support frame (61) on a side away from the driving component (11), and the first transmission component (31) being arranged in the second support frame (61); The second supporting frame (61) comprises a first connecting plate (611) arranged opposite to the supporting plate (62), the first connecting plate (611) being provided with a second mounting hole (6111), and at least a portion of the first transmission member (31) passing through the second mounting hole (6111); The support plate (62) is provided with a first mounting hole (621), the second transmission member (32) extends out of the second support frame (61), and one end of the second transmission member (32) facing away from the first transmission member (31) passes through the first mounting hole (621) and is sleeved with a shaft sleeve.

8. The HUD reflector adjustment device according to claim 7, characterized in that: The second support frame (6) further comprises an elastic component (63), the elastic component (63) comprising a spring (631), the first connecting plate (611) further comprising a mounting component (6112), the elastic component (63) being clamped to the second support frame (61) via the mounting component (6112), and at least a portion of the first transmission member (31) being in contact with the spring (631).

9. The HUD reflector adjustment device according to claim 8, characterized in that: The second supporting frame (61) further comprises a second connecting plate (612) connecting the first connecting plate (611) and the supporting plate (62), wherein the second connecting plate (612) is formed with a second elastic component (6121), and the second elastic component (6121) contacts the bottom surface of the force transmission component (2).

10. The HUD reflector adjustment device according to claim 9, characterized in that: Third elastic components (6122) are respectively provided on both sides of the second connecting plate (612), and the third elastic components (6122) are in contact with the side end surface of the force transmission component (2).

11. The HUD reflector adjustment device according to claim 9, characterized in that: The second supporting frame (61) further comprises a mounting base plate (64), wherein the mounting base plate (64) is located below the second connecting plate (612); The second support frame (6) further includes a pre-pressure adjustment component (65), wherein the pre-pressure adjustment component (65) connects the second connecting plate (612) and the mounting base plate (64) to adjust the matching gap between the second transmission member (32) and the reflector (4).

12. The HUD reflector adjustment device according to claim 11, characterized in that: The second connecting plate (612) is provided with a first connecting hole (6123), and the mounting base plate (64) is provided with a second connecting hole (641) corresponding to the first connecting hole (6123); The pre-pressure adjustment component (65) comprises a guide component (651) and an elastic deformation component (652) sleeved on the guide component (651); the guide component (651) passes through the first connection hole (6123) and the second connection hole (641); and the elastic deformation component (652) is located between the second connection plate (612) and the mounting base plate (64).

13. The HUD reflector adjustment device according to claim 1, characterized in that: The reflector (4) comprises a transmission bracket (43), the transmission bracket (43) is provided with a bevel gear (431), and the bevel gear (431) cooperates with the second transmission member (32).

14. A HUD display system, characterized in that: The HUD display system includes the adjustment device for the HUD reflector according to any one of claims 1 to 13.

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