Fixing structure, supporting system and head-up display device

Abstract

The utility model relates to a fixing structure, a supporting system and a head-up display device. The fixing structure is used for fixing two rotating shafts arranged on the two sides of a large reflecting mirror of the head-up display device, and comprises a first fixing structure and a second fixing structure which are used for fixing the two rotating shafts respectively, and any one of the first fixing structure and the second fixing structure comprises a fixing part which is of an integrated structure, the first groove is used for containing the corresponding rotating shaft, and the second groove and the third groove are used for containing the two ends of the elastic piece respectively. And the elastic sheet is configured to elastically press the rotating shaft accommodated in the first groove by enabling the two end parts to be accommodated in the second groove and the third groove respectively so as to lock the rotating shaft in the first groove. Through the fixing structure, the supporting system and the head-up display device, the generalization rate can be improved, and the design and production cost can be reduced.

Description

Technical Field

[0001] The present disclosure relates to the field of display technology, and in particular, to a fixed structure, a support system including the fixed structure, and a head-up display device including the support system. Background Art

[0002] Head Up Display (HUD) devices are widely used in vehicles and other means of transportation. They are used to display information such as vehicle conditions and road conditions on the windshield of the vehicle, so that the driver can obtain this information while maintaining continuous attention to the road conditions, thereby improving driving safety and bringing a better driving experience.

[0003] In the HUD, the image light generated by the image source is reflected onto the windshield via a large reflector at an angle, and is reflected by the windshield to form a virtual image containing the above information. Usually, the large reflector is supported at the angle by using left and right flip brackets configured according to the angle to support two rotating shafts respectively disposed on the left and right sides of the large reflector, and the two flip brackets are screwed to the bottom shell of the HUD.

[0004] However, for different HUD projects, the required optical imaging direction may be different, so the required inclination angle of the large reflector may be different. Therefore, the left and right flip brackets developed according to the specific inclination angle are difficult to use between different projects, and usually a pair of flip brackets are developed separately for one project, resulting in a low commonality rate and therefore high cost. In addition, since the flip bracket needs to be screwed to the bottom shell, the assembly cycle is lengthened and the production efficiency is therefore low. Utility Model Content

[0005] This section provides a general summary of the disclosure, and is not a comprehensive disclosure of its full scope or all of its features.

[0006] The purpose of the present disclosure is to provide a fixing structure with a high commonality rate.

[0007] Another object of the present disclosure is to provide a fixing structure with a shorter assembly cycle.

[0008] In order to achieve the above object, according to one aspect of the present disclosure, a fixing structure is provided for fixing two rotating shafts arranged on both sides of a large reflector of a head-up display device, the fixing structure comprising a first fixing structure and a second fixing structure for fixing the two rotating shafts respectively, and either of the first fixing structure and the second fixing structure comprises:

[0009] The fixing portion has an integrated structure and includes a first groove for receiving the corresponding rotating shaft and a second groove and a third groove for receiving two ends of the elastic sheet respectively; and

[0010] The spring sheet is configured to elastically press the rotating shaft received in the first groove to lock the rotating shaft in the first groove by having its two ends respectively received in the second groove and the third groove.

[0011] In some embodiments, the portion of the spring sheet used for pressing the rotating shaft may be arc-shaped, and may be able to form an arc surface with the outer surface of the rotating shaft when pressing the rotating shaft.

[0012] In some embodiments, either the second groove or the third groove may include a slot portion, and either of the two ends of the spring piece is in the form of a barb, wherein the two ends in the form of a barb are configured to snap into the slot portions of the second groove and the third groove, respectively, when received in the second groove and the third groove.

[0013] In some embodiments, either the second groove or the third groove may further include a guide groove portion extending downward from the upper side of the fixing portion and connected to the corresponding card slot portion at its lower end for guiding a corresponding one of the two end portions of the spring sheet from the guide groove portion into the card slot portion.

[0014] In some embodiments, the fixing portion may further include a first limiting portion, which is arranged on a side of the first groove facing the large reflector when receiving the rotating shaft, so as to prevent the rotating shaft received in the first groove from moving toward the said side of the first groove.

[0015] In some embodiments, the fixing portion may further include a second limiting portion, which is arranged on a side of the first groove facing the large reflector when receiving the rotating shaft, so as to prevent the spring piece received in the second groove and the third groove from moving toward the side of the first groove.

[0016] According to another aspect of the present disclosure, there is also provided a support system, comprising:

[0017] A large reflector support structure, used for supporting a large reflector of a head-up display device, wherein the large reflector support structure comprises two rotating shafts arranged on both sides of the large reflector; and

[0018] According to the fixing structure described in the above embodiment.

[0019] In some embodiments, a bottom shell for supporting the large reflector may be further included, wherein the fixing portion is integrally formed with the bottom shell.

[0020] In some embodiments, the first groove can be a spherical groove, and the end of the rotating shaft to be received in the first groove is in the form of a ball head that cooperates with the spherical groove, wherein the end of one of the two rotating shafts is hemispherical and the end of the other rotating shaft is spherical to provide limited release in the axial direction of the large reflector support structure.

[0021] According to another aspect of the present disclosure, there is also provided a support system, comprising:

[0022] The fixing structure according to the above embodiment; and

[0023] A bottom shell for supporting a large reflector of a head-up display device, wherein the fixing portion is integrally formed with the bottom shell.

[0024] According to yet another aspect of the present disclosure, a head-up display device is provided, which includes the support system according to the above embodiment.

[0025] According to the above technical solution, a fixing portion is provided and constructed to include a first groove for receiving a rotating shaft and a second groove and a third groove for receiving a spring sheet, and the spring sheet is received in the second groove and the third groove through the end portion so that the rotating shaft is crimped and locked in the first groove, so that the rotating shaft can be locked in place at a desired inclination angle only by the elastic recoverability of the spring sheet itself, thereby making the fixing structure applicable to large reflectors at any inclination angle, and thus having high adaptability to various HUD projects with different desired inclination angles, thereby being able to improve the rate of commonality and thereby reduce the design and production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The features and advantages of the embodiments of the present disclosure will become more easily understood through the following description with reference to the accompanying drawings. The drawings are not drawn to scale and some features may be exaggerated or reduced to show details of particular components.

[0027] In the attached picture:

[0028] Figure 1 FIG. 1 is a schematic top view of a supporting structure of a large reflector for a HUD in the related art.

[0029] Figure 2 For along Figure 1 A cross-sectional view taken along line AA in FIG.

[0030] Figure 3 It is a partial schematic diagram of a support system according to an embodiment of the present disclosure.

[0031] Figure 4a and Figure 4b The first fixing structure and the second fixing structure installed in place are schematically shown respectively.

[0032] Figure 5 is a schematic side view of a fixing portion according to an embodiment of the present disclosure.

[0033] Figure 6 is a schematic side view of a fixing portion according to another embodiment of the present disclosure.

[0034] Figure 7 is a schematic side view of a spring piece according to an embodiment of the present disclosure.

[0035] Figure 8 It is a schematic side view of a spring piece according to another embodiment of the present disclosure.

[0036] Fig. 9 It is a schematic front view of a spring piece according to another embodiment of the present disclosure.

[0037] Fig.10 The cross-sectional view schematically shows a state where the spring piece is assembled in the fixing portion.

[0038] Fig.11a and Fig.11b The relevant structures of the left and right pairs of rotating shafts are schematically shown respectively.

[0039] Fig.12a and Figure 12b The related structures of a pair of left and right fixing parts are schematically shown respectively.

[0040] Fig.13 It is another partial schematic diagram of a support system according to an embodiment of the present disclosure.

[0041] In the drawings, the same or corresponding technical features or components are represented by the same or corresponding reference numerals. DETAILED DESCRIPTION

[0042] The present disclosure is described in detail below with reference to the accompanying drawings by means of exemplary embodiments. It should be noted that the following detailed description of the present disclosure is only for illustrative purposes and is by no means a limitation of the present disclosure.

[0043] It should be noted that, for the sake of clarity, not all features of a specific implementation are described and illustrated in the specification and drawings. Furthermore, in order to avoid unnecessary details that obscure the technical solution that the present disclosure focuses on, only the device structure closely related to the technical solution of the present disclosure is described and illustrated in the specification and drawings, while other details that are not closely related to the technical content of the present disclosure and are known to those skilled in the art are omitted.

[0044] Reference Figure 1 and Figure 2, which shows a supporting structure of a large reflector for HUD in the related art. The supporting structure includes a large reflector bracket 801 and a pair of flip brackets 802a, 802b.

[0045] The large reflector bracket 801 is used to support the large reflector 803 of the HUD. Figure 1 and Figure 2 As clearly shown in the figure, the large reflector bracket 801 includes two rotating shafts 801a and 801b arranged on the left and right sides of the large reflector 803, and a frame part 801c connected to the two rotating shafts 801a and 801b and located between the rotating shafts 801a and 801b. The frame part 801c is fixed to the large reflector 803 to provide support for the large reflector 803.

[0046] The flip brackets 802a and 802b are respectively located on the left and right sides of the large reflector 803, and are used to provide support for the rotating shafts 801a and 801b by utilizing the grooves 8021 and 8022 set therein to receive the ends of the rotating shafts 801a and 801b, and thereby provide support for the large reflector 803 via the frame part 801c.

[0047] As mentioned before, for different HUD projects, for example, for different vehicle models, or for windshields with different inclinations or curvatures, the required optical imaging directions may be different. Figure 2 As shown in , the inclination angle of the large reflector 803 relative to the XY plane defined by the X-axis direction and the Y-axis direction, or the inclination angle of the rotation axis of the large reflector 803 relative to the XY plane, may be different, wherein the X-axis direction corresponds to the longitudinal direction of the vehicle or the axial direction of the large reflector 803 ( Figure 2 The dotted line L indicates a direction perpendicular to the axis of rotation of the large reflector 803 ; the Y-axis direction is perpendicular to the X-axis direction, corresponding to the lateral direction of the vehicle or the axial direction of the large reflector 803 .

[0048] In related technologies, such as Figure 2 As shown in FIG, the grooves 8021 and 8022 of the flip brackets 802a and 802b are configured to have corresponding angles or structures to enable the rotation shafts 801a and 801b received in the grooves 8021 and 8022 to be at a specific rotation shaft inclination angle, that is, a specific flip bracket is adapted to a specific rotation shaft inclination angle. Therefore, the left and right flip brackets developed according to a specific inclination angle are difficult to be used between different HUD projects, resulting in a low commonality rate and therefore a high cost.

[0049] In addition, if Figure 1As shown in FIG. 8 , the flip brackets 802a, 802b are fastened to the bottom shell 805 of the HUD for supporting the large reflector 803 and related structures by screws 804. These screw locking structures will lengthen the tact time of product assembly and thus reduce production efficiency.

[0050] The above problems can be solved by the fixing structure according to the embodiment of the present disclosure. Figures 3 to 10 A fixing structure according to an embodiment of the present disclosure will be described.

[0051] like Figure 3 as well as Figure 4a and Figure 4b As shown in FIG. 1 , the fixing structure 1 is used to fix two rotating shafts 201 and 202 arranged on both sides of a large reflector 10 of a head-up display device.

[0052] The rotating shafts 201 and 202 are used to support the large reflector 10 and the large reflector support structure 20 (see Fig.13 ) part. The large reflector support structure 20 may be in the form of a bracket, and thus may include two rotating shafts 201, 202 respectively disposed on the left and right sides of the large reflector 10, and a frame portion (not shown) connected to the rotating shafts 201, 202 and located therebetween. However, it is also conceivable that the large reflector support structure 20 may not include the frame portion, but the rotating shafts 201, 202 may be directly fixed to both sides of the large reflector 10 in its axial direction.

[0053] The fixing structure 1 includes a first fixing structure 11 and a second fixing structure 12 for fixing two rotating shafts 201 and 202, i.e., a left fixing structure for the left rotating shaft and a right fixing structure for the right rotating shaft. Since the first fixing structure 11 and the second fixing structure 12 are symmetrical in structure and the assembly method is the same, only one of them will be described below, and special explanations will be given at the differences between the two.

[0054] Combination Figures 5 to 10 As shown, either the first fixing structure or the second fixing structure includes:

[0055] The fixing portion 30 has an integrated structure and includes a first groove 301 for receiving the corresponding rotating shaft 201 or 202 and a second groove 302 and a third groove 303 for receiving the two end portions 410 and 420 of the elastic sheet 40 respectively; and

[0056] The spring piece 40 is configured to elastically press the rotating shaft 201 or 202 received in the first groove 301 to lock it in the first groove 301 by having the two ends 410 and 420 respectively received in the second groove 302 and the third groove 303 .

[0057] The fixing part 30 having an integrated structure means that the fixing part 30 has an integrated structure when it is a separate part. That is, when the fixing part 30 exists alone and has not yet been assembled with the spring sheet 40, its structure is integrated. The integrated structure can be an integrated structure or a whole structure formed by connecting multiple parts.

[0058] like Figure 5 and Figure 6 As shown in , the first groove 301 may be in the form of an axial hole to receive the end of the corresponding rotating shaft 201 or 202, and the second groove 302 and the third groove 303 may be respectively arranged on both sides of the first groove 301. However, it is conceivable that the first groove 301 may also adopt any other suitable form, and the second groove 302 and the third groove 303 may also adopt other suitable arrangement positions.

[0059] Combined with reference Figures 7 to 9 The spring sheet 40 is elastic and its shape can be elastically restored. Therefore, when the positions and forms of the second groove 302 and the third groove 303 are properly designed, when the two ends 410 and 420 of the spring sheet 40 are respectively received in the second groove 302 and the third groove 303, as shown in FIG. Fig.10 As shown in , the spring sheet 40 will be deformed due to the fixing of the ends 410 and 420, and will elastically press the rotating shaft 201 or 202 received in the first groove 301 due to the elastic restoring force caused by the deformation, so as to constrain the rotating shaft in the first groove 301. Here, the spring sheet 40 is also designed to have strong elastic recoverability, so as to be able to provide a greater elastic restoring force, and thus to be able to provide a greater pressure on the rotating shaft 201 or 202 received in the first groove 301, so that the rotating shaft can be locked in the first groove 301 by the greater pressure, that is, the rotating shaft is locked to be at a desired inclination angle. Thus, the locking of the rotating shaft in the first groove can be achieved only by the elastic recoverability of the spring sheet 40 itself.

[0060] In this case, when the large reflector 10 needs to be at a specific inclination angle, it is only necessary to rotate the shafts 201 and 202 to the inclination angle, and use the spring 40 to lock the shafts 201 and 202 in the first grooves 301 of the respective fixing parts 30 of the first fixing structure and the second fixing structure at the inclination angle. It can be understood that the fixing structure 1 constructed in this way can be applied to the large reflector 10 and its shafts 201 and 202 at any inclination angle. Therefore, for various HUD projects with different required inclination angles, the fixing structure 1 has a high adaptability, thereby improving the universalization rate and thus reducing the design and production costs.

[0061] It is conceivable that Figure 5 As shown in FIG, the fixing portion 30 may be a separate piece and may be fastened to the bottom shell of the HUD by screws, for example.

[0062] However, in some embodiments, such as Figure 6 As shown in , the fixing portion 30 may be integrally formed with the bottom shell 50. That is, the fixing portion 30 is a part of the bottom shell 50, and is an integrally formed part on the bottom shell 50.

[0063] In this way, the fixing part can be fixed relative to the bottom shell without using, for example, screws to lock the fixing part to the bottom shell, thereby saving the number of parts and avoiding the locking process, thereby effectively shortening the assembly cycle and thus improving production efficiency.

[0064] In some embodiments, Figure 7 As shown in FIG. 1 , the portion of the spring sheet 40 used for pressing the rotating shaft 201 or 202 is in a planar form.

[0065] However, it is conceivable that Figures 8 to 10 As shown in FIG, the portion 430 of the spring sheet 40 for pressing the rotating shaft 201 or 202 may be arc-shaped, and can form an arc surface with the outer surface of the rotating shaft when pressing the rotating shaft 201 or 202 .

[0066] By means of the arc-shaped portion 430 that can form an arc surface with the outer surface of the rotating shaft 201 or 202, the spring piece 40 can press the rotating shaft 201 or 202 with the arc surface for any inclination angle of the rotating shaft 201 or 202. Therefore, no matter what inclination angle the rotating shaft 201 or 202 is at, the spring piece 40 can provide stable pressure on the rotating shaft, and thus can firmly lock the rotating shaft in the first groove 301, thereby effectively preventing the large reflector 10 from shaking.

[0067] It is conceivable that the spring piece 40 may be integrally formed of a metal material, which may be a highly elastic metal material, such as silicon-manganese spring steel.

[0068] Below, refer to Figure 5 , Figure 6 as well as Figures 8 to 10 , an exemplary fixing structure 1 of the present disclosure is described.

[0069] Either the second groove 302 or the third groove 303 of the fixing portion 30 of the fixing structure 1 may include a slot portion 3021 or 3031, and either of the two ends 410, 420 of the spring piece 40 is in the form of a barb, wherein the two ends 410, 420 in the form of a barb are configured to be snapped into the slot portions 3021, 3031 of the second groove 302 and the third groove 303, respectively, when being received in the second groove 302 and the third groove 303.

[0070] The ends 410, 420 in the form of barbs may be designed with pre-compression interference with the slots 3021, 3031, so that the ends 410, 420 can be snapped into the slots 3021, 3031. That is, when the snap-in surfaces 410a, 420a of the ends 410, 420 of the spring sheet 40 contact the snap-in surfaces 3021a, 3031a of the slots 3021, 3031, the spring sheet 40 is deformed and the deformation causes the snap-in surfaces 410a, 420a to be pressed against the snap-in surfaces 3021a, 3031a through a certain elastic restoring force, thereby achieving the snap-in of the ends 410, 420 in the slots 3021, 3031.

[0071] When the ends 410 and 420 of the spring sheet 40 are snapped into the slots 3021 and 3031, the spring sheet 40 can exert pressure on the rotating shafts 201 and 202 received in the first groove 301 due to the reverse elastic contraction force, for example, through the arc-shaped portion 430, so as to constrain the rotating shafts 201 and 202 in the first groove 301. By designing a suitable pre-compression interference amount, the spring sheet 40 can exert greater pressure on the rotating shafts 201 and 202 to lock them in the first groove 301.

[0072] It is conceivable that either the second groove 302 or the third groove 303 may also include a guide groove portion 3022 or 3032, which extends downward from the upper side of the fixing portion 30 and is connected to the corresponding slot portion 3021 or 3031 at its lower end, so as to guide a corresponding one of the two end portions 410, 420 of the spring clip 40 from the guide groove portion 3022 or 3032 into the slot portion 3021 or 3031.

[0073] In this way, the second groove 302 and the third groove 303 are approximately "J" shaped and inverted "J" shaped, respectively, and correspondingly, the spring sheet 40 is approximately "π" shaped. This design is conducive to making the spring sheet 40 obtain higher elasticity and can provide better stability due to the symmetry of the structure.

[0074] It is conceivable that the spring piece 40 may also adopt other structural forms, and correspondingly, the second groove 302 and the third groove 303 may also adopt other structural forms.

[0075] In some embodiments, reference Figure 5 and Figure 6 as well as Figures 11a to 12b The fixing portion 30 may further include a first limiting portion 304, which is disposed on a side of the first groove 301 facing the large reflector 10 when receiving the rotating shaft 201 or 202, so as to prevent the rotating shaft 201 or 202 received in the first groove 301 from moving toward the side of the first groove 301.

[0076] For example, Figures 11a to 12b As shown in , when the first groove 301 is a spherical groove and the end 2011 or 2021 of the rotating shaft 201 or 202 to be received in the first groove 301 is in the form of a ball head that cooperates with the spherical groove, the first limiting portion 304 can be a pair of open limiting surfaces arranged at the opening of the first groove 301 in the axial direction, and the pair of open limiting surfaces are arranged facing each other in a direction perpendicular to the axial direction, such as Fig.12a and Figure 12b The end 2011 or 2021 of the rotating shaft 201 or 202 can slide into the first groove 301 through the pair of stop surfaces 201a or 202a provided on the opposite side of the rotating shaft 201 or 202 via the pair of opening limiting surfaces. At this time, the first limiting portion 304 can prevent the end 2011 or 2021 in the form of a ball head received in the first groove 301 from moving toward the one side of the first groove 301 through the outlet with a reduced diameter defined by the first limiting portion 304.

[0077] In this way, the rotation axis received in the first groove can be restricted from moving toward the one side of the first groove, thereby making the position of the large reflector more stable, which is conducive to obtaining a more stable imaging effect.

[0078] In some embodiments, the fixing portion 30 may further include a second limiting portion 305, which is arranged on the side of the first groove 301 facing the large reflector 10 when receiving the rotating shaft 201 or 202, so as to prevent the spring piece 40 received in the second groove 302 and the third groove 303 from moving toward the said side of the first groove 301.

[0079] For example, Fig.12a and Figure 12b As shown in FIG. 1 , the second limiting portion 305 may face the side end surface 401 of the spring piece 40 received in the second groove 302 and the third groove 303, which faces the side of the first groove 301 (see FIG. 1 ). Figure 8 ), and a side facing the side end surface 401 is higher than the side end surface 401, so as to prevent the elastic sheet 40 received in the second groove 302 and the third groove 303 from moving toward the one side of the first groove 301.

[0080] In this way, the spring sheet can be pressed against the rotating shaft more stably, so that the rotating shaft can be more stably maintained at a desired inclination angle, thereby making the position of the large reflector more stable, which is conducive to obtaining a more stable imaging effect.

[0081] It is conceivable that the first limiting portion and the second limiting portion may take any other suitable forms.

[0082] According to another aspect of the present disclosure, there is also provided a support system, comprising:

[0083] A large reflector support structure 20, used for supporting the large reflector 10 of the head-up display device, the large reflector support structure 20 comprises two rotating shafts 201, 202 arranged on both sides of the large reflector 10; and

[0084] Fixed structure 1.

[0085] In some embodiments, Figure 3 As shown in , the support system may further include a bottom shell 50 for supporting the large reflector 10 , wherein the fixing portion 30 is integrally formed with the bottom shell 50 .

[0086] In some embodiments, the support system may further include a large reflector 10 .

[0087] In some embodiments, reference Figures 11a to 13 The first groove 301 may be a spherical groove, and the end 2011 or 2021 of the rotating shaft 201 or 202 to be received in the first groove 301 is in the form of a ball head that cooperates with the spherical groove.

[0088] In addition, the end 2011 or 2021 of one of the two rotating shafts 201 and 202 can be hemispherical, and the end 2021 or 2011 of the other rotating shaft can be spherical to provide limited release in the axial direction of the large reflector support structure 20.

[0089] exist Fig.13, it is shown that the end 2011 on the left side is hemispherical, and the end 2021 on the right side is spherical. In this way, for the spherical end 2021, it is possible to limit its position in the X-axis direction (i.e., the direction perpendicular to the axial direction of the large reflector 10, or the longitudinal direction of the vehicle), the Y-axis direction (i.e., the axial direction of the large reflector 10, or the lateral direction of the vehicle) and the Z-axis direction (i.e., the direction perpendicular to both the X-axis direction and the Y-axis direction); and for the hemispherical end 2011, it is possible to limit its position in the X-axis direction and the Z-axis direction, but for the Y-axis direction, the hemispherical end 2011 can provide a moving gap for the large reflector 10 in the Y-axis direction, that is, provide a limit release in the Y-axis direction, so as to avoid the spherical contact failure of the ends 2021 and 2011 in the form of ball heads in the first groove 301 due to size errors.

[0090] It is understandable that the spring sheet 40 can be pressed onto the ends 2011, 2021 in the form of a ball head and form an arc surface match with the ends.

[0091] According to another aspect of the present disclosure, there is also provided a support system, comprising:

[0092] A fixed structure 1; and

[0093] The bottom shell 50 is used for supporting the large reflector 10 of the head-up display device, wherein the fixing portion 30 is integrally formed with the bottom shell 50 .

[0094] According to yet another aspect of the present disclosure, a head-up display device is provided, which includes the above-mentioned support system.

[0095] In the present disclosure, although the present disclosure has been described with reference to exemplary embodiments, it should be understood that the present disclosure is not limited to the specific embodiments described and shown in detail herein. Those skilled in the art may make various changes to the exemplary embodiments without departing from the scope defined by the claims of the present disclosure.

[0096] The features mentioned and / or shown in the above description of the exemplary embodiments of the present disclosure may be combined in the same or similar manner into one or more other embodiments, combined with the features in other embodiments or substituted for the corresponding features in other embodiments. The technical solutions obtained by these combinations or substitutions shall also be deemed to be included in the protection scope of the present disclosure.

Claims

1. A fixing structure for fixing two rotating shafts arranged on both sides of a large reflector of a head-up display device, characterized in that: It includes a first fixing structure and a second fixing structure for fixing the two rotating shafts respectively, and any one of the first fixing structure and the second fixing structure includes: The fixing portion has an integrated structure and includes a first groove for receiving the corresponding rotating shaft and a second groove and a third groove for receiving two ends of the elastic sheet respectively; and The elastic sheet is configured to elastically press the rotating shaft received in the first groove to lock the rotating shaft in the first groove by having the two ends respectively received in the second groove and the third groove.

2. The fixing structure according to claim 1, characterized in that: The portion of the spring sheet used for pressing the rotating shaft is arc-shaped and can form an arc surface with the outer surface of the rotating shaft when pressing the rotating shaft.

3. The fixing structure according to claim 1, characterized in that: Either of the second groove and the third groove includes a slot portion, and either of the two ends of the spring sheet is in the form of a barb, wherein the two ends in the form of a barb are configured to be snapped into the slot portions of the second groove and the third groove, respectively, when received in the second groove and the third groove.

4. The fixing structure according to claim 3, characterized in that: Either the second groove or the third groove further includes a guide groove portion, which extends downward from the upper side of the fixing portion and is connected to the corresponding card groove portion at its lower end, so as to guide a corresponding one of the two end portions of the spring sheet from the guide groove portion into the card groove portion.

5. The fixing structure according to claim 1, characterized in that: The fixing portion further includes a first limiting portion, which is arranged on a side of the first groove facing the large reflector when the rotating shaft is received, so as to prevent the rotating shaft received in the first groove from moving toward the one side of the first groove.

6. The fixing structure according to claim 1, characterized in that: The fixing portion also includes a second limiting portion, which is arranged on a side of the first groove facing the large reflector when receiving the rotating shaft, so as to prevent the elastic sheet received in the second groove and the third groove from moving toward the side of the first groove.

7. A support system, characterized in that: include: A large reflector support structure, used for supporting a large reflector of a head-up display device, wherein the large reflector support structure comprises two rotating shafts arranged on both sides of the large reflector; as well as A fixing structure according to any one of claims 1 to 6.

8. The support system according to claim 7, characterized in that: It also includes a bottom shell for supporting the large reflector, wherein the fixing portion is integrally formed with the bottom shell.

9. The support system according to claim 7 or 8, characterized in that: The first groove is a spherical groove, and the end of the rotating shaft to be received in the first groove is in the form of a ball head that cooperates with the spherical groove, wherein the end of one of the two rotating shafts is hemispherical, and the end of the other rotating shaft is spherical, so as to provide limited release in the axial direction of the large reflector support structure.

10. A support system, characterized in that: include: The fixing structure according to any one of claims 1 to 6; as well as A bottom shell for supporting a large reflector of a head-up display device, wherein the fixing portion is integrally formed with the bottom shell.

11. A head-up display device, characterized in that: Comprising a support system according to any one of claims 7 to 10.

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