Reflection module and head-up display device

Abstract

The utility model provides a reflection module. The reflection module is used for a shell. The shell is provided with a bottom wall and two side walls, and the two side walls stand on the bottom wall and are opposite to each other. The two side walls are provided with end faces back to the bottom wall, the two end faces are provided with first positioning structures and bearing grooves respectively, and the two first positioning structures are located outside the two bearing grooves. The reflection module comprises two bearing seats and a reflection element. Each of the two bearing seats is provided with a pivoting part and a positioning part connected with the pivoting part, and the reflecting element is pivoted between the two pivoting parts. Each two positioning parts is provided with a second positioning structure corresponding to each two first positioning structures. The two pivoting parts are used for being arranged in the two bearing grooves in the two end faces respectively, and the two first positioning structures are used for being fixedly connected with the two corresponding second positioning structures. The utility model further provides a head-up display device with the reflection module. The head-up display device and the reflection module have the advantages of being easy to assemble and low in processing precision requirement.

Description

Technical Field

[0001] The utility model relates to an optical module, in particular to a reflection module, and a head-up display device having the reflection module. Background Art

[0002] A head-up display is an auxiliary display used in vehicles. The driver can view the contents of the head-up display at a level angle, thereby reducing the number of times the driver lowers his head when operating the vehicle. Furthermore, the head-up display can be configured with an image light source and multiple reflective modules, wherein each reflective module can be moved or rotated relative to the image light source to adjust the projection position of the image light source to match the height of different drivers.

[0003] Generally speaking, the reflective module is assembled to the housing of the head-up display, and the reflective module and the housing may be provided with a plurality of positioning structures corresponding to each other. In addition to assisting installation, the positioning structures can also provide a limiting function for the reflective module. However, in the prior art, the housing often needs to be provided with many positioning structures in order to effectively limit the reflective module in multiple different directions. This not only leads to a very high processing accuracy requirement for the housing and the reflective module, thus causing the problem of poor yield, but also too many positioning structures also make the assembly process of the head-up display complicated and time-consuming.

[0004] The "background technology" section is only used to help understand the content of the utility model, so the content disclosed in the "background technology" section may contain some prior art that is not known to those skilled in the art. The content disclosed in the "background technology" section does not mean that the content or the problems to be solved by one or more embodiments of the utility model have been known or recognized by those skilled in the art before the application of the utility model. Utility Model Content

[0005] The utility model provides a head-up display device, which has the advantages of being easy to assemble and having low processing precision requirements.

[0006] The utility model provides a reflection module, which has the advantage of being easy to position and assemble to a housing.

[0007] Other purposes and advantages of the utility model can be further understood from the technical features disclosed in the utility model.

[0008] In order to achieve one or part or all of the above-mentioned purposes or other purposes, a head-up display device of one embodiment of the utility model includes an image light source, a first reflection module, a shell and a second reflection module. The image light source is used to provide an image beam. The first reflection module is arranged on the transmission path of the image beam and is used to reflect the image beam. The shell has a bottom wall and two side walls, and the two side walls stand on the bottom wall and are opposite to each other. Each of the two side walls has an end face facing away from the bottom wall, and the two end faces respectively have a first positioning structure and a bearing groove, and the two first positioning structures are located outside the two bearing grooves. The second reflection module is arranged downstream of the optical path of the first reflection module, wherein the second reflection module includes two bearing seats and a reflection element. Each of the two bearing seats has a pivoting portion and a positioning portion connecting the pivoting portions, and the reflection element is pivoted between the two pivoting portions. Each of the two positioning portions has a second positioning structure corresponding to each of the two first positioning structures. The two pivoting portions are respectively used to be arranged in the two bearing grooves of the two end faces, and each of the two first positioning structures is used to fix the corresponding two second positioning structures. The reflection element is used to reflect the image beam emitted from the first reflection module.

[0009] In order to achieve one, part or all of the above purposes or other purposes, a reflection module in one embodiment of the present invention is used for the housing. The features of the reflection module are the same as those of the second reflection module.

[0010] The head-up display device of the present invention adopts a second reflection module and a shell, wherein the shell has two bearing grooves for aligning and installing two bearing seats, and the two first positioning structures of the shell are located outside the two bearing grooves. Therefore, in the process of assembling the two bearing seats to the shell, the two pivoting parts and the two second positioning structures can be aligned and assembled to the two bearing grooves and the two first positioning structures respectively, thereby greatly simplifying the assembly process of the head-up display device. In addition, because the head-up display device of the present invention adopts bearing grooves to replace part of the positioning structure, the number of positioning structures of the second reflection module and the shell can also be reduced, thereby reducing the processing accuracy requirements of the second reflection module and the shell. Based on the above, the reflection module of the present invention (i.e., the second reflection module) has the advantage of being easy to position and assemble to the shell. Therefore, the head-up display device with the above reflection module can have the advantages of being easy to assemble and having low processing accuracy requirements.

[0011] In order to make the above and other purposes, features and advantages of the present invention more obvious and understandable, preferred embodiments are given below with reference to the accompanying drawings for detailed description as follows. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a cross-sectional schematic diagram of a head-up display device according to an embodiment of the present utility model.

[0013] Figure 2 yes Figure 1 A schematic top view of a second reflective module installed on a housing.

[0014] Figure 3 yes Figure 2 Schematic diagram of separation of the second reflection module and the shell.

[0015] Figure 4 yes Figure 2 A cross-sectional schematic diagram of a second reflection module installed on a housing.

[0016] Figure 5 yes Figure 3 Schematic diagram of the separation of the bearing seat and the side wall.

[0017] Figure 6 It is a top view schematic diagram of a second reflective module of a head-up display device according to another embodiment of the present invention installed on a housing.

[0018] Reference numerals list

[0019] 100, 100a: head-up display device

[0020] 110: Image Light Source

[0021] 120: first reflection module

[0022] 130: Shell

[0023] 143: Reflective element

[0024] 144: shaft element

[0025] 145:Fixer

[0026] 131, 133: first positioning structure

[0027] 132, 134: bearing groove

[0028] 140, 140a: second reflection module

[0029] 141, 142: Bearing seat

[0030] 1411, 1421: pivoting portion

[0031] 1412, 1422, 1422a: Positioning unit

[0032] 1413, 1423: fixed part

[0033] A: Axial

[0034] B: base body

[0035] BE:Bearing

[0036] BW: bottom wall

[0037] C: Cover

[0038] D, X, Y, Z: Direction

[0039] ES1, ES2: end face

[0040] H: Perforation

[0041] H1: First piercing

[0042] H2, H2a: Second perforation

[0043] L: Image beam

[0044] O1, O2: Installation port

[0045] O11: First opening

[0046] O12: Second opening

[0047] P1, P2: Second positioning structure

[0048] PS1, PS2: convex positioning structure

[0049] R: Diameter

[0050] RS: Rotating shaft

[0051] S1: First surface

[0052] S2: Second surface

[0053] S3: Third surface

[0054] S4: Fourth surface

[0055] SS1, SS2: Side

[0056] SW1, SW2: side wall

[0057] T:Thickness

[0058] W1: First width

[0059] W2: Second width. DETAILED DESCRIPTION

[0060] The above and other technical contents, features and effects of the present invention will be clearly presented in the following detailed description of a preferred embodiment with reference to the accompanying drawings. The directional terms mentioned in the following embodiments, such as up, down, left, right, front or back, etc., are only referenced to the directions in the accompanying drawings. Therefore, the directional terms used are used to illustrate and not to limit the present invention.

[0061] Figure 1 It is a cross-sectional schematic diagram of a head-up display device according to an embodiment of the present utility model. Figure 2 yes Figure 1A schematic top view of a second reflective module installed on a housing. Figure 3 yes Figure 2 Schematic diagram of separation of the second reflection module and the shell. Figure 4 yes Figure 2 A cross-sectional schematic diagram of a second reflection module installed on a housing. Figure 5 yes Figure 3 Schematic diagram of the separation of the bearing seat and the side wall.

[0062] Please refer to Figure 1 The head-up display device 100 includes an image light source 110, a first reflection module 120, a housing 130, and a second reflection module 140. The image light source 110 is used to provide an image beam L. The first reflection module 120 is disposed on the transmission path of the image beam L and is used to reflect the image beam L. The second reflection module 140 is disposed downstream of the optical path of the first reflection module 120. Figure 2 and Figure 3 The housing 130 has a bottom wall BW (also shown in Figure 1 ), side walls SW1 and SW2, the side walls SW1 and SW2 stand on the bottom wall BW and face each other. Each of the two side walls SW1 and SW2 has an end surface facing away from the bottom wall BW, that is, the side wall SW1 has an end surface ES1, and the side wall SW2 has an end surface ES2. The end surfaces ES1 and ES2 have a first positioning structure and a bearing groove, respectively. In other words, the end surface ES1 has a first positioning structure 131 and a bearing groove 132 (both are also shown in FIG. Figure 5 ), the end surface ES2 has a first positioning structure 133 and a bearing groove 134. The first positioning structure 131 is located outside the bearing groove 132, and the first positioning structure 133 is located outside the bearing groove 134. The second reflection module 140 includes bearing seats 141, 142 and a reflection element 143. The reflection element 143 is used to reflect the image beam L (depicted on Figure 1 ).

[0063] Please refer to Figure 3 and Figure 4 Each bearing seat 141 and 142 has a pivoting portion and a positioning portion, that is, the bearing seat 141 has a pivoting portion 1411 (also shown in Figure 5 ) and a positioning portion 1412, wherein the positioning portion 1412 is connected to the pivoting portion 1411. Similarly, the bearing seat 142 has a pivoting portion 1421 and a positioning portion 1422, wherein the positioning portion 1422 is connected to the pivoting portion 1421. The reflective element 143 is pivotally connected between the pivoting portions 1411 and 1421. Each positioning portion 1412 and 1422 has a second positioning structure corresponding to each first positioning structure 131 and 133. In other words, the positioning portion 1412 has a second positioning structure P1 (also shown in FIG. Figure 5), and the second positioning structure P1 corresponds to the first positioning structure 131. Similarly, the positioning portion 1422 has a second positioning structure P2, and the second positioning structure P2 corresponds to the first positioning structure 133. The pivoting portion 1411 is used to be disposed in the bearing groove 132 of the end surface ES1, and the pivoting portion 1421 is used to be disposed in the bearing groove 134 of the end surface ES2, and each of the first positioning structures 131 and 133 is used to fix the corresponding second positioning structures P1 and P2. In other words, the first positioning structure 131 is used to fix to the second positioning structure P1, and the first positioning structure 133 is used to fix to the second positioning structure P2.

[0064] Please refer to Figure 1 , the image light source 110 may be disposed in the housing 130. The image light source 110, for example, includes a picture generation unit (PGU). In detail, the image light source 110 may include a light-emitting element, and the light beam generated by the light-emitting element may form an image light beam L through a reflective cup, an optical film and / or an optical lens, but the present invention does not impose any restrictions on the process of forming the image light beam L. In one embodiment, the light-emitting element may include a plurality of light-emitting diodes (LEDs), and the light-emitting diodes may be arranged in a matrix, but the present invention does not impose any restrictions on these details. In one embodiment, the image light source 110 also includes a display panel, which is located on the transmission path of the light beam emitted by the light-emitting diode, and is used to convert the light beam emitted by the light-emitting diode into an image light beam L, wherein the display panel may be a liquid crystal display panel, etc., but the present invention does not impose any restrictions on these details.

[0065] In the present embodiment, the first reflection module 120 is disposed in the housing 130 and can move relative to the housing 130 to change the transmission path of the image beam L, thereby changing the projection position of the image beam L. For example, the first reflection module 120 may include a reflector, and the reflector can move relative to the housing 130 along a direction D. Further, the reflector can be moved by a motor, but the present invention does not limit the specific means. In another embodiment, the reflector can rotate relative to the housing 130, or the reflector can move or rotate relative to the housing 130 at the same time, but the present invention does not limit the specific means.

[0066] The housing 130 of the present embodiment has, for example, a base B and a cover C, wherein the image light source 110, the first reflection module 120 and the second reflection module 140 can be fixed to the base B, and the cover C can be combined with the base B to cover the image light source 110, the first reflection module 120 and the second reflection module 140. Figure 3 and Figure 4The first positioning structure 131 can be located on the end surface ES1, and the first positioning structure 133 can be located on the end surface ES2, so as to provide the positioning portions 1412 and 1422 with alignment. In addition, the side walls SW1 and SW2 also have side surfaces, that is, the side wall SW1 has a side surface SS1 (also shown in FIG. Figure 5 ), and the side surface SS1 is connected to the end surface ES1. Similarly, the side wall SW2 has a side surface SS2, and the side surface SS2 is connected to the end surface ES2. The bearing groove 132 has a mounting opening O1, and the mounting opening O1 extends from the end surface ES1 to the side surface SS1. Similarly, the bearing groove 134 has a mounting opening O2, and the mounting opening O2 extends from the end surface ES2 to the side surface SS2. In detail, Figure 3 and Figure 5 As shown, the mounting opening O1 may include a first opening O11 and a second opening O12, wherein the first opening O11 is located at the end surface ES1 for the pivoting portion 1411 to extend therein. On the other hand, the second opening O12 may be located at the side surface SS1, so that the bearing BE (also shown in FIG. Figure 4 ) can be installed on the pivot portion 1411 through the second opening O12. The features of the installation opening O2 are substantially the same as those of the installation opening O1, so the related description is omitted here.

[0067] Please refer to Figure 3 and Figure 4 The reflective element 143 of the second reflective module 140 can rotate relative to the housing 130 to change the illumination beam (shown in Figure 1 ) transmission path. Further, the second reflection module 140 may also include an axis element 144 (also shown in Figure 5 ). The pivoting portions 1411 and 1421 are opposite to each other, and the shaft element 144 is pivotally connected to the reflective element 143 and the pivoting portions 1411 and 1421. In this embodiment, the shaft element 144 may include two rotation axes RS (also shown in FIG. Figure 5 ), and the two rotating shafts RS are respectively inserted on the opposite sides of the reflective element 143, and each of the two rotating shafts RS can be connected to each pivot part 1411 and 1421 via a bearing BE. In another embodiment, the shaft element 144 can also include only a single rotating shaft RS, the single rotating shaft RS passes through the reflective element 143, and the two ends of the single rotating shaft RS are respectively connected to the pivot parts 1411 and 1421, but the utility model does not limit the specific means. In this embodiment, the reflective element 143, for example, includes a back cover and a mirror, wherein the two rotating shafts RS can be respectively pivotally connected to the back cover and the pivot parts 1411 and 1421, and the aforementioned mirror is fixed on the back cover and is located Figure 1 The image beam L is on the transmission path of the image beam L. Incidentally, the aforementioned mirror includes, for example, a curved mirror, but the present invention is not limited thereto.

[0068] The following will describe the detailed features of the first positioning structures 131 and 133 and the second positioning structures P1 and P2. Figure 2 and Figure 3 In this embodiment, the total number of the first positioning structures 131 and 133 is, for example, at least two, and the total number of the second positioning structures P1 and P2 may correspond to the total number of the first positioning structures 131 and 133. For example, the end surface ES1 may have only one first positioning structure 131, and the end surface ES2 may have only one first positioning structure 133. In addition, the positioning portion 1412 may have only one second positioning structure P1, and the positioning portion 1422 may have only one second positioning structure P2. In this way, the housing 130 is configured with two positioning structures to provide the second reflection module 140 with the effect of alignment and limiting, thereby reducing the processing accuracy requirements of the housing 130 and the second reflection module 140, so as to further improve the product yield of the head-up display device 100.

[0069] Please continue to refer to Figure 2 For example, in this embodiment, the second positioning structure P1 includes a first through hole H1 (also shown in Figure 4 and Figure 5 ), the second positioning structure P2 includes a second through hole H2 (also shown in Figure 4 The first positioning structure 131 may include a convex positioning structure PS1 (also shown in FIG. 1 ) corresponding to the first through hole H1. Figure 4 and Figure 5 ), the first positioning structure 133 may include a convex positioning structure PS2 (also shown in FIG. Figure 4). Specifically, after the convex positioning structures PS1 and PS2 extend into and are fixed to the first through-hole H1 and the second through-hole H2 respectively, the positioning portion 1412 can limit the movement of the convex positioning structure PS1 relative to the housing 130, and the positioning portion 1422 can limit the movement of the convex positioning structure PS2 relative to the housing 130, thereby limiting the movement of the second reflection module 140 relative to the housing 130 in directions X and Z. On the other hand, since the convex positioning structures PS1 and PS2 are located on opposite sides of the housing 130, the movement of the positioning portions 1412 and 1422 relative to the housing 130 by the convex positioning structures PS1 and PS2 can further limit the rotation of the positioning portions 1412 and 1422 relative to each other. For example, the convex positioning structure PS1 can limit the movement of the positioning portion 1412 in direction X, thereby limiting the rotation of the positioning portion 1412 relative to the positioning portion 1422 in direction X. Similarly, the convex positioning structure PS2 can limit the rotation of the positioning portion 1422 relative to the positioning portion 1412 in direction X. As can be seen from the above, configuring a positioning structure on each of the end surfaces ES1 and ES2 can limit the movement and rotation of the second reflection module 140 relative to the shell 130, thereby providing an effective limiting effect for the second reflection module 140 and reducing the total number of positioning structures of the shell 130 and the second reflection module 140 to a minimum.

[0070] Please refer to Figure 2 and Figure 4 , the orthographic projection of the first through hole H1 on the positioning portion 1412 (drawn on Figure 2 ) is circular, and the first through hole H1 has a diameter R. The shaft element 144 has an axial direction A, and the axial direction A points from the pivoting portion 1411 to the pivoting portion 1421. The orthographic projection of the second through hole H2 on the positioning portion 1422 (drawn on Figure 2 ) has a first width W1 in a direction X perpendicular to the axial direction A (drawn on Figure 2), and the first width W1 is, for example, equal to the diameter R. In detail, the width of the first positioning structure 133 in the direction X is substantially the same as the first width W1 of the second through hole H2. Thus, after the first through hole H1 and the second through hole H2 are fixedly connected to the first positioning structures 131 and 133, the hole wall of the second through hole H2 can abut against the first positioning structure 133, thereby effectively limiting the amount of rotation of the positioning portion 1422 relative to the positioning portion 1412 in the direction X. In this embodiment, the two rotation axes RS of the shaft element 144 can be coaxially arranged with each other, that is, the axial directions of the two rotation axes RS are both axial directions A. It can be understood that the first through hole H1 and the second through hole H2 can be arranged on the axial direction A of the shaft element 144. Therefore, the shaft element 144 can be used as a reference for the position of the first through hole H1 on the positioning portion 1412, and can also be used as a reference for the position of the second through hole H2 on the positioning portion 1422; similarly, the position of the first positioning structure 131 on the end surface ES1 can be referenced by the center of the bearing groove 132, and the position of the first positioning structure 133 can be referenced by the center of the bearing groove 134, thereby further improving the processing accuracy. It should be noted that Figure 2 The axis A and the direction X are shown to be at an angle, rather than being parallel to each other.

[0071] It is worth mentioning that, in the process of aligning and assembling the second reflective module 140 to the housing 130, the first through hole H1 can be used to directly observe whether the first through hole H1 is aligned with the convex positioning structure PS1, and the second through hole H2 can be used to directly observe whether the second through hole H2 is aligned with the convex positioning structure PS2. Therefore, the second positioning structures P1 and P2 adopt the form of through holes, which can also reduce the time required for aligning to the first positioning structures 131 and 133, making the head-up display device 100 easier to assemble.

[0072] Please refer to Figure 2 , Figure 3 and Figure 5 Incidentally, the second reflection module 140 further includes two fixing members 145. The bearing seat 141 may further include a fixing portion 1413, and the bearing seat 142 may further include a fixing portion 1423. The fixing portion 1413 connects the positioning portion 1412 and the pivoting portion 1411, and the fixing portion 1423 connects the positioning portion 1422 and the pivoting portion 1421. The fixing members 145 are used to penetrate the fixing portions 1413 and 1423, and extend into and are fixed to the side walls SW1 and SW2, so that the bearing seat 141 is more firmly fixed to the side walls SW1 and SW2 that are moved away from the side walls SW1 and SW2 due to violent shaking. Each set of fixing members 145 includes, for example, two screws, and the fixing portions 1413, 1423, and the side walls SW1 and SW2 may have screw holes corresponding to the screws, but the utility model is not limited thereto.

[0073] Please continue to refer to Figure 3 and Figure 5In this embodiment, the positioning parts 1412 and 1422 may also have a first surface and a second surface. Figure 5 Take the first surface S1 and the second surface S2 of the positioning portion 1412 as an example. The first surface S1 and the second surface S2 are opposite to each other, and the pivoting portion 1411 is connected to the second surface S2. The fixing portions 1413 and 1423 have a third surface and a fourth surface. Figure 5 Take the third surface S3 and the fourth surface S4 of the fixing portion 1413 as an example. The third surface S3 and the fourth surface S4 are opposite to each other, and the fourth surface S4 is coplanar with the second surface S2. The fourth surface S4 is recessed in the first surface S1 to reduce the thickness T of the fixing portion 1413 between the third surface S3 and the fourth surface S4. In this way, the length of the through hole H for the fixing member 145 to pass through can be shortened, thereby increasing the length of the fixing member 145 extending into the side wall SW1 through the through hole H, so as to more firmly fix the bearing seat 141 on the end surface ES1. The detailed features and advantages of the positioning portion 1422 are the same as those of the first surface S1. Figure 5 The detailed features and advantages of the positioning portion 1412 and the fixing portion 1423 are the same as those of Figure 5 The fixing part 1413 is not shown, so the related description is omitted here.

[0074] Compared with the prior art, the head-up display device 100 of the present embodiment adopts a second reflection module 140 and a housing 130, wherein the housing 130 has a bearing groove 132 for aligning and installing the bearing seat 141, and a bearing groove 134 for aligning and installing the bearing seat 142. In addition, the first positioning structure 131 of the housing 130 is located outside the bearing groove 132, and the first positioning structure 133 is located outside the bearing groove 134. Therefore, in the process of assembling the bearing seat 141 to the housing 130, the pivoting portion 1411 and the second positioning structure P1 can be aligned and assembled to the bearing groove 132 and the first positioning structure 131, and the pivoting portion 1421 and the second positioning structure P2 can be aligned and assembled to the bearing groove 134 and the first positioning structure 133, thereby greatly simplifying the assembly process of the head-up display device 100. In addition, because the head-up display device 100 of the present embodiment uses the bearing grooves 132 and 134 to replace part of the positioning structure, the number of positioning structures of the second reflection module 140 and the housing 130 can be reduced, thereby reducing the processing accuracy requirements of the second reflection module 140 and the housing 130. Based on the above, the second reflection module 140 of the present embodiment has the advantage of being easy to position and assemble to the housing 130. Therefore, the head-up display device 100 having the second reflection module 140 can have the advantages of being easy to assemble and having low processing accuracy requirements.

[0075] Figure 6 FIG. 1 is a top view of another embodiment of the head-up display device of the present invention, in which the second reflective module is installed on the housing. In this embodiment, the structure and advantages of the head-up display device 100a and the second reflective module 140a are similar to those of FIG. Figure 2 The following is an example of an embodiment of the present invention, and only the differences are described below. Please refer to Figure 6 , the second through hole H2a has a second width W2 on the orthographic projection of the positioning portion 1422a in the axial direction A, and the second width W2 can be greater than the diameter R of the first through hole H1. In this way, the processing position tolerance of the second through hole H2a on the positioning portion 1422a along the axial direction A can be increased, and even if the position of the second through hole H2a formed on the positioning portion 1422a deviates slightly from the preset position, the first positioning structures 131 and 133 can still be aligned and extend into the first through hole H1 and the second through hole H2a, so that the assembly of the second reflection module 140a and the housing 130 is not affected by the aforementioned processing deviation. Based on the above, the second through hole H2a can further reduce the processing accuracy requirements of the head-up display device 100a, and can also make the head-up display device 100a easier to assemble.

[0076] In summary, the head-up display device and the reflection module (i.e., the second reflection module) of the embodiment of the utility model have at least one of the following advantages. The head-up display device of the utility model adopts a second reflection module and a shell, wherein the shell has two bearing grooves for aligning and installing two bearing seats, and the two first positioning structures of the shell are located outside the two bearing grooves. Therefore, in the process of assembling the two bearing seats to the shell, the two pivoting parts and the two second positioning structures can be aligned and assembled to the two bearing grooves and the two first positioning structures respectively, thereby greatly simplifying the assembly process of the head-up display device. In addition, because the head-up display device of the utility model adopts the bearing groove to replace part of the positioning structure, the number of positioning structures of the second reflection module and the shell can also be reduced, thereby reducing the processing accuracy requirements of the second reflection module and the shell. Based on the above, the reflection module of the utility model has the advantage of being easy to position and assemble to the shell. Therefore, the head-up display device with the above-mentioned reflection module can have the advantages of being easy to assemble and having low processing accuracy requirements.

[0077] The above description is only a preferred embodiment of the utility model, and cannot be used to limit the scope of implementation of the utility model. That is, all simple equivalent changes and modifications made in accordance with the claims and the description of the utility model are still within the scope of the utility model patent. In addition, any embodiment or claim of the utility model does not have to achieve all the purposes, advantages or features disclosed in the utility model. In addition, the abstract of the specification and the name of the invention are only used to assist in patent document retrieval, and are not used to limit the scope of rights of the utility model. In addition, the terms "first", "second", etc. mentioned in this specification or claims are only used to name the name of the element or distinguish different embodiments or scopes, and are not used to limit the upper or lower limit of the number of elements.

Claims

1. A head-up display device, characterized in that: The head-up display device includes an image light source, a first reflection module, a housing and a second reflection module, wherein The image light source is used to provide an image light beam; The first reflection module is disposed on the transmission path of the image light beam and is used to reflect the image light beam; The housing has a bottom wall and two side walls, the two side walls stand on the bottom wall and are opposite to each other, each of the two side walls has an end face facing away from the bottom wall, and the two end faces respectively have a first positioning structure and a bearing groove, and the two first positioning structures are located outside the two bearing grooves; and The second reflection module is arranged downstream of the optical path of the first reflection module, wherein the second reflection module includes two bearing seats and a reflection element, each of the two bearing seats has a pivot portion and a positioning portion connected to the pivot portion, the reflection element is pivoted between the two pivot portions, each positioning portion has a second positioning structure corresponding to each two first positioning structures, the two pivot portions are respectively used to be arranged in the two bearing grooves of the two end surfaces, and each two first positioning structures are used to fix the corresponding two second positioning structures, and the reflection element is used to reflect the image light beam emitted from the first reflection module.

2. The head-up display device according to claim 1, characterized in that: The total number of the two first positioning structures is at least two, and the total number of the two second positioning structures corresponds to the total number of the two first positioning structures.

3. The head-up display device according to claim 1, characterized in that: The second reflection module also includes an axis element, the two pivot parts are opposite to each other, the axis element is pivoted to the reflection element and the two pivot parts, the axis element has an axial direction, and the axial direction points from one of the two pivot parts to the other, the two second positioning structures include a first through hole and a second through hole, the first through hole is circular in the orthographic projection of the positioning part and has a diameter, the second through hole has a first width in the direction perpendicular to the axial direction of the orthographic projection of the positioning part, and the first width is equal to the diameter.

4. The head-up display device according to claim 3, characterized in that: The second through hole has a second width in the axial direction in an orthographic projection of the positioning portion, and the second width is greater than the diameter.

5. The head-up display device according to claim 3, characterized in that: The first through hole and the second through hole are arranged in the axial direction of the shaft element.

6. The head-up display device according to claim 3, characterized in that: The two first positioning structures include two convex positioning structures corresponding to the first through hole and the second through hole.

7. The head-up display device according to claim 1, characterized in that: The second reflection module further includes two fixing members, and each of the two bearing seats further includes a fixing portion, the fixing portion connecting the positioning portion and the pivoting portion, and the two fixing members are used to penetrate the two fixing portions and extend into and be fixed on the two side walls.

8. The head-up display device according to claim 7, characterized in that: The positioning portion also has a first surface and a second surface, the first surface is opposite to the second surface, and the pivot portion is connected to the second surface, the fixing portion has a third surface and a fourth surface, the third surface is opposite to the fourth surface, and the fourth surface is coplanar with the second surface, and the fourth surface is recessed in the first surface.

9. The head-up display device according to claim 1, characterized in that: The two side walls respectively have side surfaces, the side surfaces are connected to the end surfaces, and the two bearing grooves respectively have mounting openings, and the mounting openings extend from the end surfaces to the side surfaces.

10. A reflection module, characterized in that: The reflective module is used for a shell, and the shell has a bottom wall and two side walls, the two side walls stand on the bottom wall and are opposite to each other, each of the two side walls has an end face facing away from the bottom wall, and the two end faces respectively have a first positioning structure and a bearing groove, and the two first positioning structures are located outside the two bearing grooves. The reflective module includes two bearing seats and a reflective element, wherein The two bearing seats have a pivoting portion and a positioning portion connected to the pivoting portions, each of the two positioning portions has a second positioning structure corresponding to each of the two first positioning structures, the two pivoting portions are respectively used to be arranged in the two bearing grooves of the two end surfaces, and each of the two second positioning structures is used to fix the corresponding two first positioning structures; and The reflective element is pivotally connected between the two pivotally connected portions.

11. The reflection module according to claim 10, characterized in that: The total number of the two first positioning structures is at least two, and the total number of the two second positioning structures corresponds to the total number of the two first positioning structures.

12. The reflection module according to claim 10, characterized in that: The reflection module also includes an axis element, the two pivot parts are opposite to each other, the axis element is pivoted to the reflection element and the two pivot parts, the axis element has an axial direction, and the axial direction points from one of the two pivot parts to the other, the two second positioning structures include a first through hole and a second through hole, the first through hole is circular in the positive projection of the positioning part and has a diameter, the second through hole has a first width in the direction perpendicular to the axial direction of the positive projection of the positioning part, and the first width is equal to the diameter.

13. The reflection module according to claim 12, characterized in that: The second through hole has a second width in the axial direction in an orthographic projection of the positioning portion, and the second width is greater than the diameter.

14. The reflection module according to claim 12, characterized in that: The first through hole and the second through hole are arranged in the axial direction of the shaft element.

15. The reflection module according to claim 12, characterized in that: The two first positioning structures include two convex positioning structures corresponding to the first through hole and the second through hole.

16. The reflection module according to claim 10, characterized in that: The reflection module also includes two fixing members, and each of the two bearing seats also has a fixing portion, the fixing portion connects the positioning portion and the pivoting portion, and the two fixing members are used to penetrate the two fixing portions and extend into and be fixed on the two side walls.

17. The reflection module according to claim 16, characterized in that: The positioning portion also has a first surface and a second surface, the first surface is opposite to the second surface, and the pivot portion is connected to the second surface, the fixing portion has a third surface and a fourth surface, the third surface is opposite to the fourth surface, and the fourth surface is coplanar with the second surface, and the fourth surface is recessed in the first surface.

18. The reflection module according to claim 10, characterized in that: The two side walls respectively have side surfaces, the side surfaces are connected to the end surfaces, and the two bearing grooves respectively have mounting openings, and the mounting openings extend from the end surfaces to the side surfaces.

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