CN114236821B

CN114236821B - Head-up display device

Info

Publication number: CN114236821B
Application number: CN202111049021.9A
Authority: CN
Inventors: 简宏彰
Original assignee: Lite On Technology Corp
Current assignee: Lite On Technology Corp
Priority date: 2020-09-09
Filing date: 2021-09-08
Publication date: 2023-10-13
Anticipated expiration: 2041-09-08
Also published as: CN114236821A

Abstract

A head-up display device comprises a transmission mechanism, a driving mechanism and an optical assembly. The driving mechanism drives the transmission mechanism to operate. The optical component is connected to the transmission mechanism and comprises a base and a reflecting plate component. The reflecting plate assembly is rotatably arranged on the base. The base is driven by the transmission mechanism to linearly move between the first position and the second position. The reflecting plate assembly is driven by the transmission mechanism to rotate among the storage position, the first working position and the second working position. The base is kept positioned at the first position during the rotation of the reflecting plate assembly between the storage position and the first working position. In the process of rotating the reflecting plate assembly between the first working position and the second working position, the base moves linearly between the first position and the second position.

Description

Head-up display device

Technical Field

The present invention relates to a head-up display device, and more particularly, to a head-up display device capable of viewing a desired image at the same angle in a top view for drivers of different heights.

Background

A Head-Up Display (HUD) is a device that projects information required by a driver on a line of sight of a windshield for the driver to see the required information directly on the line of sight of the driver without lowering the Head.

One type of head-up display device is a windscreen head-up display device (windshield HUD). In general, drivers of different heights can see clear projection images through windshields by adjusting the inclination angle of the reflecting plate. However, although the inclination angle of the reflecting plate can be adjusted according to drivers with different heights, the position of the projected image seen by the driver may deviate, so that the image cannot be accurately attached to the position to be displayed.

Disclosure of Invention

The invention relates to a head-up display device, which is characterized in that a second reflecting plate component rotates and a base moves linearly at different time points. Thus, even drivers of different heights can view the virtual image at the same overlooking angle.

According to an aspect of the present invention, a head-up display device is provided. The head-up display device comprises a transmission mechanism, a driving mechanism and an optical assembly. The driving mechanism drives the transmission mechanism to operate. The optical component is connected to the transmission mechanism and comprises a base and a reflecting plate component. The reflecting plate assembly is rotatably arranged on the base. The base is driven by the transmission mechanism to linearly move between the first position and the second position. The reflecting plate assembly is driven by the transmission mechanism to rotate among the storage position, the first working position and the second working position. The base is kept positioned at the first position during the rotation of the reflecting plate assembly between the storage position and the first working position. In the process of rotating the reflecting plate assembly between the first working position and the second working position, the base moves linearly between the first position and the second position.

The head-up display device further comprises an image generating unit fixedly arranged on the base.

The head-up display device comprises a reflector assembly and a display device. The carrier includes a rotating shaft. The transmission mechanism comprises an inclination angle guide groove, a rack, a transmission wheel and a traction assembly. The inclined angle guiding groove is provided with a first guiding section and a second guiding section. The rotating shaft is accommodated in the inclination angle guide groove. The rack is linked with the rotating shaft to drive the rotating shaft to move in the inclined angle guide groove. The driving wheel is meshed with the rack and drives the rack. The traction assembly is fixedly arranged on the base and is used for traction of linear movement of the base between the first position and the second position. In the process that the rack drives the rotating shaft to move in the first guide section, the rotating shaft is guided by the first guide section to drive the reflecting plate assembly to rotate between the storage position and the first working position, and the traction assembly is not linked with the rack, so that the base is kept to be positioned at the first position. In the process that the rack drives the rotating shaft to move in the second guide section, the rotating shaft is guided by the second guide section to drive the reflecting plate assembly to rotate between the first working position and the second working position, and the traction assembly is linked with the rack to drive the base to linearly move between the first position and the second position.

The head-up display device is characterized in that the inclination guide groove is arranged on the rack.

The head-up display device, wherein the traction assembly comprises a tooth part. In the process that the rack drives the rotating shaft to move in the second guide section, the driving wheel is meshed with the tooth part at the same time so as to drive the base. In the process that the rack drives the rotating shaft to move in the first guide section, the driving wheel is separated from the tooth part.

The head-up display device, wherein the traction assembly further comprises a convex column. The rack is provided with a chute. The convex column is accommodated in the chute and moves between the first end and the second end of the chute along with the movement of the rack. When the driving wheel is meshed with the tooth part at the same time, the convex column is positioned at the second end of the sliding groove. When the driving wheel is separated from the tooth part, the convex column is separated from the second end of the chute, and when the reflecting plate component is positioned at the storage position, the convex column is positioned at the first end of the chute.

The head-up display device, wherein the traction assembly comprises a convex column. The rack is provided with a chute, and the convex column is accommodated in the chute. In the process of rotating the reflecting plate assembly between the storage position and the first working position, the convex column is displaced between the first end and the second end of the chute. In the process of rotating the reflecting plate assembly between the first working position and the second working position, the convex column is abutted against and positioned at the second end of the chute.

The head-up display device further comprises a spring arranged between the first end of the chute and the convex column.

The head-up display device further comprises a base. The transmission mechanism, the driving mechanism and the optical component are respectively arranged on the base. The base is provided with a guide wall surface, and an inclined angle is formed between the extending direction of the guide wall surface and the moving direction of the rack. In the process that the rack drives the rotating shaft to move in the second guide section, the rotating shaft is propped against the second guide section and the guide wall surface together.

The head-up display device, wherein the transmission mechanism further comprises a locking piece, and the traction assembly comprises a pin piece. In the process that the rack drives the rotating shaft to move in the first guide section, the locking piece is meshed with the rack, and the pin piece is limited by the locking piece and is not linked with the rack. In the process that the rack drives the rotating shaft to move in the second guide section, the locking piece is separated from the rack and releases the pin piece, and the pin piece is linked with the rack.

The head-up display device further comprises a base. The transmission mechanism, the driving mechanism and the optical component are respectively arranged on the base, and the inclination guide groove is arranged on the base.

The head-up display device comprises a traction assembly and a driving assembly. The limit groove is provided with a first section and a second section, and the rotating shaft is accommodated in the limit groove. In the process that the rack drives the rotating shaft to move in the first guide section, the rotating shaft is positioned in the first section but not abutted against the first section, and the rack is separated from the lug. In the process that the rack drives the rotating shaft to move in the second guide section, the rotating shaft is positioned in the second section and abuts against the second section, and the rack abuts against the protruding block.

The invention will now be described in more detail with reference to the drawings and specific examples, which are not intended to limit the invention thereto.

Drawings

Fig. 1A is a schematic diagram of an application of a head-up display device according to an embodiment of the present invention.

Fig. 1B is a schematic diagram of another application of a head-up display device according to an embodiment of the present invention.

Fig. 2 is a partially exploded view of a head-up display device according to an embodiment of the present invention.

Fig. 3A is a perspective view of an optical assembly of the head-up display device of fig. 2 at a first viewing angle.

Fig. 3B is a perspective view of an optical assembly of the head-up display device of fig. 2 at a second viewing angle.

Fig. 4A is a partially exploded view of an optical assembly of the head-up display device of fig. 2.

Fig. 4B is an enlarged partial schematic view of portion a of fig. 4A.

Fig. 5 is an exploded view of a transmission mechanism and a driving mechanism of the head-up display device of fig. 2.

Fig. 6A is a side view of the second reflector assembly of the head-up display device of fig. 2 in a stowed position.

Fig. 6B is a partially enlarged schematic illustration of the head-up display device of fig. 6A at a third viewing angle.

Fig. 7A is a side view of the second reflector assembly of the head-up display device of fig. 2 in a first operational position.

Fig. 7B is a partially enlarged schematic view of the head-up display device of fig. 7A at a fourth viewing angle.

Fig. 8A is a side view of the second reflector plate assembly of the head-up display device of fig. 2 in an intermediate operating position.

Fig. 8B is a partially enlarged schematic illustration of the head-up display device of fig. 8A at a fifth viewing angle.

Fig. 9A is a side view of the second reflector plate assembly of the head-up display device of fig. 2 in a second operational position.

Fig. 9B is a partially enlarged schematic view of the head-up display device of fig. 9A at a sixth viewing angle.

Fig. 10A is a partially enlarged schematic view of a portion B1 of fig. 7A.

Fig. 10B is a partially enlarged schematic view of a portion B2 of fig. 8A.

Fig. 10C is a partially enlarged schematic view of the portion B3 of fig. 9A.

Fig. 11 is a perspective view of a head-up display device according to another embodiment of the present invention.

Fig. 12 is a partially exploded view of the head-up display device of fig. 11.

Fig. 13 is a side view of the second reflector assembly of the head-up display device of fig. 11 in a stowed position.

Fig. 14 is a side view of the second reflector plate assembly of the head-up display device of fig. 11 in a first operational position.

Fig. 15 is a side view of the second reflector plate assembly of the head-up display device of fig. 11 in a second operational position.

Detailed Description

The structural and operational principles of the present invention are described in detail below with reference to the accompanying drawings:

embodiments of the present invention will be described in detail below, with reference to the accompanying drawings as examples. In addition to these details, the present invention may be widely practiced in other embodiments, and easy alternatives, modifications, and equivalents of any of the described embodiments are included within the scope of the present invention, as set forth in the following claims. In the description of the present invention, numerous specific details and examples are provided to provide a thorough understanding of the present invention; however, these specific details and examples should not be construed as limiting the invention. Furthermore, well-known steps or elements have not been described in detail in order to avoid unnecessarily limiting the present invention.

Fig. 1A is a schematic diagram of an application of a head-up display device H or Ha according to an embodiment of the invention, so as to show a relative positional relationship of each element. The head-up display device H or Ha may be a device mounted under an instrument panel of a vehicle (e.g., a vehicle), which may include the image generating unit 14, the first reflection plate 132, and the second reflection plate 122. The image generating unit 14 is used to generate an image displayed on the windshield WS. When the second reflecting plate 122 is located at the first working position shown by the dotted line, the light L for generating the image can be reflected from the image generating unit 14 via the first reflecting plate 132 and the second reflecting plate 122 in sequence according to the path indicated by the dotted line arrow, so as to project the virtual image onto the windshield WS.

When the vehicle mounted with the head-up display device H or Ha is parked outdoors, the sunlight SL is mostly irradiated into the cab through the windshield WS, so that in some cases, the sunlight SL also follows the path of the light L (shown by the dashed arrow), and is sequentially reflected by the second reflective plate 122 and the first reflective plate 132 to be condensed on the image generating unit 14, so that the image generating unit 14 is damaged and cannot generate the complete image light L. Therefore, when the head-up display device H or Ha is not used, the present invention can also position the second reflecting plate 122 at the storage position shown by the solid line so as not to destroy the image generating unit 14 by the path (shown by the dotted arrow) of the sunlight SL along the light L.

On the other hand, fig. 1B is a schematic diagram of another application of the head-up display device H or Ha according to an embodiment of the present invention, which shows the second reflective plate 122 in a different working position. Referring to FIG. 1A, when the head-up display is startedIn the case of the device H or Ha, the second reflecting plate 122 can perform the angular rotation M _R1 For example about 20 deg., to rotate from a stowed position (shown in solid lines) shown in fig. 1A to a first operative position (shown in phantom lines). As shown in fig. 1B, when the second reflecting plate 122 is positioned at the first operating position as shown by the dotted line, both eyes E (shown by the dotted line) of the driver can view the virtual image IMG (shown by the dotted line) projected to the windshield WS through the windshield WS. If another driver with higher height (shown by the solid line with eyes E) wants to take over driving, the second reflecting plate 122 can move linearly M from the first working position shown by the dotted line _L To the second working position shown by the solid line, the second reflecting plate 122 also generates a slight rotation M _R2 For example, fine adjustment of the angle is performed in an interval of 1 °, so that a driver with a high height can view a virtual image IMG (shown by a solid line) projected onto the windshield WS through the windshield WS. In addition, the overlooking angle of the virtual image IMG is unchanged for drivers with higher heights or shorter heights, so that the problem that the images cannot be accurately attached due to different overlooking angles is avoided.

Referring to fig. 2, a partially exploded view of a head-up display device H according to an embodiment of the invention is shown. The head-up display device H may include an optical assembly 1, a transmission mechanism 2, a driving mechanism 3, and a base 4. The optical assembly 1, the transmission mechanism 2 and the driving mechanism 3 are respectively arranged on the base 4. The driving mechanism 3 is used for driving the transmission mechanism 2 to operate. The transmission mechanism 2 is connected to the optical assembly 1 to transmit the kinetic energy of the driving mechanism 3 to the optical assembly 1, so as to drive the optical assembly 1 to operate, such as to perform the linear movement M _L Rotation M _R1 ,M _R2 。

The optical assembly 1 may include a base 11, a first reflection plate assembly 13, a second reflection plate assembly 12, and an image generating unit 14, and the optical assembly 1 may be movable with respect to the base 4. Further, the optical component 1 may be movably disposed on the base 4 by at least one locking component 5 and a track 41 of the base 4. The locking assembly 5 may include a screw 51 and a spring 52. The base 11 of the optical assembly 1 may include at least one mounting portion 111 corresponding to the locking assembly 5, which passes through and is received in the track 41 of the base 4. Next, the springs 52 are fitted around the respective mounting portions 111 and abutted against the outer wall of the base 4, and the screws 51 are locked to the mounting portions 111 in a state of abutting against the springs 52. As shown in the embodiment of FIG. 2, the track 41 is a linear track, so that when the optical assembly 1 is driven by the driving mechanism 2, the base 11 is driven to move linearly relative to the base 4, for example, the base 11 is moved linearly between the first position and the second position.

Fig. 3A is a perspective view of the optical assembly 1 of the head-up display device H of fig. 2 at a first viewing angle. Fig. 3B is a perspective view of the optical assembly 1 of the head-up display device H of fig. 2 at a second viewing angle. Fig. 3A and 3B show a state in which the second reflection plate assembly 12 is located at the storage position, respectively.

Referring to fig. 2, 3A and 3B, the first reflecting plate assembly 13, the second reflecting plate assembly 12 and the image generating unit 14 are respectively disposed on the base 11. The image generating unit 14 is fixedly arranged on the base 11. The first reflecting plate assembly 13 may include a fixing member 131 and a first reflecting plate 132, and the first reflecting plate 132 may be fixed to the base 11 by the fixing member 131. Therefore, when the base 11 moves linearly relative to the base 4, the first reflecting plate assembly 13 and the image generating unit 14 fixed thereon can be driven to move synchronously.

Fig. 4A is a partially exploded view of the optical assembly 1 of the head-up display device H of fig. 2. Fig. 4B is an enlarged partial schematic view of portion a of fig. 4A. Referring to fig. 3A, 3B, 4A and 4B, the second reflective plate assembly 12 is rotatably disposed on the base 11. Specifically, the second reflecting plate assembly 12 may include a carrier 121 and a second reflecting plate 122. The second reflecting plate 122 is fixed on the carrier 121 and is carried by the carrier 121. The carrier 121 includes a pivot 121P and a rotation shaft 121S. The carrier 121 may be disposed on the base 11 by means of the pivot assembly 15 and may pivot with respect to the base 11. In detail, the pivot assembly 15 may include a pivot portion 151 and a spring plate 152. The pivot 151 is fixedly disposed on the base 11. The pivot 121P may be disposed in the pivot 151, and the pivot 151 may provide a degree of freedom of rotation of the pivot 121P, and the elastic piece 152 may provide a margin when the pivot 121P is pivoted in the pivot 151. In addition, the base 11 may further have a notch 112. When the second reflecting plate assembly 12 is located at the storage position, the rotating shaft 121S is supported by and accommodated in the notch 112. When the transmission mechanism 2 drives the optical assembly 1 to operate, the carrier 121 is driven to rotate about the pivot 121P, so that the second reflecting plate assembly 12 rotates relative to the base 11, for example, the second reflecting plate assembly 12 is driven to rotate between a storage position, a first working position and a second working position (the storage position, the first working position and the second working position can refer to the related descriptions in fig. 1A and fig. 1B), and when the second reflecting plate assembly 12 is far from the storage position, the rotating shaft 121S is also gradually far from the notch 112.

As can be seen from the above description, the pivot assembly 15 allows the second reflector assembly 12 to have a degree of freedom of rotation about the pivot 121P relative to the base 11, so that the second reflector assembly 12 can only rotate relative to the base 11 and cannot move relative to the base 11. Therefore, when the base 11 moves linearly relative to the base 4, the second reflecting plate assembly 12 is also driven to move linearly.

The foregoing is followed and further described with respect to fig. 1A and 1B. Referring to fig. 1A, 2 and 3B, when the second reflecting plate 122 is switched from the storage position (shown by solid line) to the first working position (shown by broken line), the second reflecting plate 122 rotates only by M _R1 The base 11 is therefore not moved but remains positioned in the first position. Referring to fig. 1B, 2 and 3B, when the second reflecting plate 122 is switched from the first operating position (shown by the dotted line) to the second operating position (shown by the solid line), the second reflecting plate 122 is rotated not only by M _R2 At the same time linearly move M _L . This linear movement M _L I.e. by the base 11, the base 11 is linearly moved from the first position to the second position.

Referring to fig. 5, an exploded view of the transmission mechanism 2 and the driving mechanism 3 of the head-up display device H of fig. 2 is shown. The driving mechanism 3 may include a motor 31 and a driving wheel 32 driven by the motor 31. The driving wheel 32 is connected to the transmission mechanism 2 to drive the transmission mechanism 2. The transmission mechanism 2 may include a first transmission rod 26, a second transmission rod 27, a transmission wheel 23 and a rack 22 connected in sequence. The first transmission lever 26 may include a rotating wheel 261, a first pivot shaft 262, and a first screw gear 263. The rotating wheel 261 is disposed on the first pivot shaft 262, and is rotatable together with the first pivot shaft 262, and is engaged with the driving wheel 32 to be driven by the driving wheel 32. The first screw gears 263 are disposed at both ends of the first pivot shaft 262 to be rotatable together with the first pivot shaft 262, and connected to the second transmission rods 27 at both sides. The second transmission lever 27 may include a second pivot shaft 271, a second helical gear 272, and a driving worm 273. The second spiral gear 272 and the driving worm 273 are respectively disposed at two ends of the second pivot shaft 271 and can rotate together with the second pivot shaft 271, and the second spiral gear 272 is meshed with the first spiral gear 263 and driven by the first spiral gear 263. The driving wheel 23 may include a driving worm wheel 231 and a driving wheel 232. The drive worm wheel 231 is meshed with the drive worm 273 and is driven by the drive worm 273. The link wheel 232 and the drive worm wheel 231 may be formed as a single piece so that the link wheel 232 rotates together with the drive worm wheel 231.

The driving wheel 23 is meshed with the rack 22 and drives the rack 22. Further, the rack 22 is meshed with the interlocking wheel 232 of the driving wheel 23. Here, the linking wheel 232 may be a spur gear, so that the rack 22 is driven to linearly move when the driving wheel 23 rotates.

Fig. 6A is a side view of the second reflection plate assembly 12 of the head-up display device H of fig. 2 in a storage position. Fig. 6B is a partially enlarged schematic view of the head-up display device H of fig. 6A at a third viewing angle. Fig. 7A is a side view of the second reflector assembly 12 of the head-up display device H of fig. 2 in a first operating position. Fig. 7B is a partially enlarged schematic view of the head-up display device H of fig. 7A at a fourth viewing angle. Fig. 8A is a side view of the second reflector plate assembly 12 of the head-up display device H of fig. 2 in an intermediate operating position. Fig. 8B is a partially enlarged schematic view of the head-up display device H of fig. 8A at a fifth viewing angle. Fig. 9A is a side view of the second reflector plate assembly 12 of the head-up display device H of fig. 2 in a second operating position. Fig. 9B is a partially enlarged schematic view of the head-up display device H of fig. 9A at a sixth viewing angle.

Here, the transmission assembly 2 further includes an inclination guide groove 21. In this embodiment, the inclined guide groove 21 is provided on the rack 22. Referring to fig. 2, 5 and 6A, the rotating shaft 121S of the second reflecting plate assembly 12 is accommodated in the inclined guiding groove 21. Therefore, when the rack 22 moves linearly, the rack 22 can be linked with the rotating shaft 121S to drive the rotating shaft 121S to move in the inclined guiding slot 21. In addition, the rotating shaft 121S can further drive the second reflecting plate assembly 12 to rotate between the storage position (fig. 6A), the first working position (fig. 7A) and the second working position (fig. 9A) through the guiding of the inclined guiding slot 21.

In detail, the inclined guide groove 21 may have a first guide section 211 and a second guide section 212. As shown in fig. 6A and fig. 7A, in the process that the rack 22 drives the rotating shaft 121S to move in the first guiding section 211, the rotating shaft 121S is guided by the first guiding section 211, so as to drive the second reflecting plate assembly 12 to rotate between the storage position of fig. 6A and the first working position of fig. 7A. When the rotating shaft 121S rotates from the storage position to the first working position, the rotating shaft 121S happens to enter the second guide section 212 from the first guide section 211.

As shown in fig. 7A, 8A and 9A, when the rack 22 drives the rotating shaft 121S to move in the second guiding section 212, the rotating shaft 121S is guided by the second guiding section 212, so as to drive the second reflecting plate assembly 12 to rotate between the first working position of fig. 7A, the intermediate working position of fig. 8A and the second working position of fig. 9A.

Fig. 10A, 10B and 10C are schematic enlarged partial views of the portion B1 of fig. 7A, the portion B2 of fig. 8A and the portion B3 of fig. 9A, respectively. In this embodiment, the base 4 may further include a guiding wall 42, the position of which is clearly shown in fig. 5. The extending direction of the guide wall surface 42 and the moving direction of the rack 22 have an inclined angle therebetween. When the rack 22 drives the rotating shaft 121S to move in the second guiding section 212, the rotating shaft 121S abuts against the second guiding section 212 and the guiding wall 42. Also, as the rotation shaft 121S is sequentially driven from fig. 10A to the state shown in fig. 10B and 10C, the gap between the rotation shaft 121S and the top edge of the second guide section 212 gradually decreases. Thus, the rotation shaft 121S is firmly disposed between the guiding wall 42 and the edge of the second guiding section 212, so that the second reflecting plate assembly 12 can be firmly positioned at the first working position, the middle working position and the second working position, so as to avoid the situation that the positioning of the second reflecting plate assembly 12 is not reliable enough due to possible shaking, but the projected image is shaken.

On the other hand, referring to fig. 4B, 6A and 6B, the transmission assembly 2 further includes a traction assembly 24. The traction assembly 24 is fixedly disposed on the base 11, and is capable of traction the linear movement of the base 11 between a first position (as shown in fig. 6A and 7A) and a second position (as shown in fig. 9A).

For example, the traction assembly 24 may include teeth 241. As shown in fig. 4B, the tooth portion 241 has an entry end 241a and a stop end 241B opposite to the entry end 241 a. Referring to fig. 2, the tooth surface width of the interlocking wheel 232 is larger than that of the rack 22, so that the tooth portion 241 can be meshed with the interlocking wheel 232 in some cases. Additionally, the traction assembly 24 may further include a post 242 and the rack 22 may have a slide slot 221. The boss 242 is accommodated in the sliding slot 221 and can be displaced between the first end 221a and the second end 221b of the sliding slot 221 along with the movement of the rack 22.

Referring to fig. 6A, 6B, 7A and 7B, when the second reflecting plate assembly 12 is to be rotated from the storage position to the first working position, the driving wheel 23 starts to drive the rack 22 to drive the rotating shaft 121S to move in the first guiding section 211. In this process, the rotating shaft 121S is located at the first guiding section 211, and the driving wheel 23 (or the linking wheel 232) is not yet meshed with the tooth 241 from the inlet and outlet end 241a, and is thus separated from the tooth 241, so that the driving wheel 23 cannot drive the base 11 through the tooth 241, and the base 11 still remains in the first position. However, the driving wheel 23 still continuously drives the rack 22 to move linearly, so the boss 242 is displaced from the first end 221a to the second end 221b of the chute 221. Once the boss 242 moves to the second end 221b of the chute 221 and is positioned at the second end 221b of the chute 221, the driving wheel 23 is engaged with the tooth 241 from the inlet and outlet end 241a of the tooth 241, so as to start to drive the base 11 to move linearly from the first position to the second position. At this time, the rotation shaft 121S enters the second guide section 212 from the first guide section 211.

Referring to fig. 7A, 7B, 8A, 8B, 9A and 9B, when the second reflecting plate assembly 12 is to be rotated from the first working position to the second working position, the driving wheel 23 continuously drives the rack 22 to drive the rotating shaft 121S to move in the second guiding section 212. In this process, the rotating shaft 121S is located at the second guiding section 212, and the driving wheel 23 is simultaneously meshed with the tooth portion 241, so that the tooth portion 241 and the boss 242 are respectively linked with the rack 22. Further, until the second reflecting plate assembly 12 is rotated to the second working position, the driving wheel 23 is engaged with the step stopper end 241b of the tooth portion 241. Therefore, the driving wheel 23 can synchronously drive the base 11 through the teeth 241, so that the base 11 moves linearly from the first position of fig. 7A to the second position of fig. 9A.

The foregoing describes the rotation process of the second reflecting plate assembly 12 from the storage position, the first operating position, the intermediate operating position to the second operating position in order. On the contrary, when the second reflecting plate assembly 12 is to be rotated from the second working position, the intermediate working position and the first working position to the storage position in order, the driving wheel 23 is still engaged with the tooth portion 241 when the second reflecting plate assembly 12 is located at the second working position, so that the rack 22 and the base 11 can be synchronously driven to linearly move the base 11 from the second position to the first position, and the second reflecting plate assembly 12 is rotated from the second working position to the first working position. Then, the driving wheel 23 is separated from the tooth portion 241, but still drives the rack 22 continuously, so that the second reflecting component 12 is rotated from the first working position to the storage position under the state that the base 11 is positioned at the first position.

As mentioned above, in other embodiments, the above-described driving method can be implemented if the related configuration of the protruding columns 242 is omitted.

In another embodiment, not shown, the protrusion 242 may be retained and the configuration of the teeth 241 may be omitted. For example, in this embodiment, the transmission mechanism 2 may further include a spring disposed in the chute 221. The spring is connected between the first end 221a of the chute 221 and the boss 242, and is maintained in a compressed state when the boss 242 is displaced in the chute 221.

In addition, in order to ensure that the base 11 can still be reliably kept in the first position during the rotation of the second reflecting plate assembly 12 between the storage position and the first working position, as shown in fig. 5, the transmission mechanism 2 may further include a locking member 25 rotatably disposed on the base 4; and as shown in fig. 4B, traction assembly 24 may also include a pin 243.

Referring to fig. 5, the latch 25 includes a rotating wheel 251, a rotating arm 252 connected to the rotating wheel 251, and a protrusion 253 on the rotating arm 252. The arm 252 is substantially arc-shaped, and the center of curvature thereof is substantially the center of rotation of the wheel 251. In addition, the base 4 may further include a stopper 43 disposed corresponding to the protrusion 253. Referring also to fig. 6A and 7A, when the second reflecting plate assembly 12 is in the storage position of fig. 6A, the rotating wheel 251 of the locker 25 is engaged with the rack 22. At this time, the radial arm 252 of the locking member 25 is locked to the pin 243, so that the pin 243 is limited by the locking member 25 and does not move with the rack 22 in the process that the rack 22 drives the rotating shaft 121S to move in the first guiding section 211, thereby keeping the base 11 positioned at the first position. During the continuous rotation of the rack 22 to rotate the second reflector assembly 12 toward the first operating position of fig. 7A, the latch member 25 also continuously rotates with the rack 22. In this process, since the center of curvature of the arm 252 is substantially the center of rotation of the wheel 251, the pin 243 is not interlocked with the rack 22 due to the restriction of the catch 25 even if the catch 25 is continuously rotated. The catch member 25 does not release the pin member 243 until the second reflective plate assembly 12 is in the first operative position as shown in fig. 7A, allowing the base 11 to move in synchronism with the rack 22. At this time, the rotating wheel 251 of the latch 25 is separated from the rack 22, and the protruding portion 253 of the latch 25 is abutted against the stopper 43.

Furthermore, referring to fig. 5, the head-up display device H may further include a sensing module 6. The sensing module 6 includes a detection rod 61, the detection rod 61 passes through the base 4 from the outside of the base 4 and extends into the base 4, and the driving wheel 23 passes through the detection rod 61 and is disposed on the base 4. The sensing module 6 can learn the rotation condition of the driving wheel 23 through the detecting rod 61, so as to detect the current position of the optical assembly 1 according to the rotation condition of the driving wheel 23.

Fig. 11 is a perspective view of a head-up display device Ha according to another embodiment of the present invention, which shows an optical assembly 1a, a transmission mechanism 2a, and a base 4a of the head-up display device Ha. It should be understood that the head-up display device Ha also includes a driving mechanism for driving the driving mechanism 2a. In order to focus on the differences from the head-up display device H shown in fig. 2, the driving mechanism is not shown here. In the present embodiment, different but similar reference numerals are used to indicate the differences from the head-up display device H shown in fig. 2, and other elements identical to those of the head-up display device H shown in fig. 2 are denoted by the same reference numerals.

Referring to fig. 11, an optical assembly 1a, a transmission mechanism 2a and a driving mechanism, not shown, are respectively disposed on a base 4a. The same as the head-up display device H shown in fig. 2 is: when the transmission mechanism 2a drives the optical component 1A to operate, the optical component 1A can be driven to perform the linear movement M as shown in FIG. 1A and FIG. 1B _L Rotation M _R1 ,M _R2 。

The optical assembly 1a includes a chassis 11a, a first reflection plate assembly 13a, a second reflection plate assembly 12, and an image generating unit 14. The first reflecting plate assembly 13a, the second reflecting plate assembly 12 and the image generating unit 14 are respectively disposed on the chassis 11a. Wherein the second reflecting plate assembly 12 is rotatably disposed at the base 11a. The image generating unit 14 is fixedly arranged on the base 11a, and the first reflecting plate assembly 13a includes a first reflecting plate 132 and a fixing member 131a, wherein the first reflecting plate 132 can be fixedly arranged on the base 11a by the fixing member 131 a. The same as the head-up display device H shown in fig. 2 is: when the optical component 1A performs the linear movement M as shown in fig. 1A and 1B _L When the base 11a is driven by the transmission mechanism 2a to linearly move between the first position and the second position; when the optical assembly 1A performs the rotation M as shown in fig. 1A and 1B _R1 ,M _R2 The second reflector assembly 12 is rotatable among a storage position, a first operating position and a second operating position.

Fig. 12 is a partially exploded view of the head-up display device Ha of fig. 11. Referring to fig. 11 and 12, the optical assembly 1a may further include a reset element 16 disposed between the carrier 121 and the base 11a. The transmission mechanism 2a may also include an inclination guide groove 21a, a rack 22a, and a transmission wheel 23a. In this embodiment, the inclined guide groove 21a is provided on the base 4a. The driving wheel 23a is meshed with the rack 22a and drives the rack 22a. The rack 22a is linked with the rotating shaft 121S to drive the rotating shaft 121S to move in the inclined guiding slot 21a. Further, the rack 22a has a receiving rail 223, and the rotating shaft 121S can pass through the receiving rail 223 to be received in the inclined guiding groove 21a provided on the base 4a.

Fig. 13 is a side view of the second reflection plate assembly 12 of the head up display device Ha of fig. 11 in the storage position. Fig. 14 is a side view of the second reflector assembly 12 of the head-up display device Ha of fig. 11 in a first operating position. Fig. 15 is a side view of the second reflector assembly 12 of the head-up display device Ha of fig. 11 in a second operating position.

Referring to fig. 13, 14 and 15, when the rack 22a is driven by the rotating wheel 23a, the rack 22a can drive the rotating shaft 121S to move in the inclined guiding groove 21a, so that the rotating shaft 121S further drives the second reflecting plate assembly 12 to rotate between the storage position (fig. 13), the first working position (fig. 14) and the second working position (fig. 15) through the guiding of the inclined guiding groove 21a.

In detail, the inclined guide groove 21a may have a first guide section 211a and a second guide section 212a. As shown in fig. 13, in the process that the rack 22a drives the rotating shaft 121S to move in the first guiding section 211A, the rotating shaft 121S is guided by the first guiding section 211A, so as to drive the second reflecting plate assembly 12 to rotate between the storage position of fig. 13 and the first working position of fig. 14 (as shown by rotation M in fig. 1A) _R1 ). When the rotating shaft 121S rotates from the storage position to the first working position, the rotating shaft 121S happens to enter the second guide section 212a from the first guide section 211a.

As shown in fig. 14 and 15, when the rack 22a drives the rotating shaft 121S to move in the second guiding section 212a, the rotating shaft 121S is guided by the second guiding section 212a to drive the second reflecting plate assembly 12 to rotate (rotate M shown in fig. 1B) between the first working position of fig. 14 and the second working position of fig. 15 _R2 ). And as previously mentioned, rotate M _R2 Only fine tuning of the angle. As can be seen from fig. 14, the extending direction of the second guiding section 212a and the moving direction of the rack 22 have a slight inclination angle, so that the rotating shaft 121S slightly rotates in the second guiding section 212a.

On the other hand, referring to fig. 12, 13, 14 and 15, the transmission assembly 2a further includes a traction assembly 24a. The traction assembly 24a is fixedly disposed on the base 11a, and is capable of traction the linear movement of the base 11a between a first position (fig. 13 and 14) and a second position (fig. 15).

For example, traction assembly 24a may include a tab 244 and a limit slot 245. The limiting groove 245 has a first section 2451 and a second section 2452, and the rotating shaft 121S is accommodated in the limiting groove 245. In detail, the rotation shaft 121S sequentially passes through the limiting groove 245 and the accommodating rail 223 to be accommodated in the inclined guiding groove 21a provided on the base 4a. As shown in fig. 13 and 14, the first section 2451 of the limiting groove 245 corresponds to the first guide section 211a of the inclined guide groove 21a, but the first section 2451 is slightly larger than the first guide section 211a. In the process that the rack 22a drives the rotating shaft 121S to rotate the second reflecting plate assembly 12 from the storage position to the first working position, the rotating shaft 121S abuts against the first guiding section 211a and moves in the first guiding section 211a, but in this process, the rotating shaft 121S does not abut against the first section 2451, so that the rack 22a cannot link the limiting groove 245 through the rotating shaft 121S. Therefore, the rack 22a drives the rotation shaft 121S to move in the first guiding section 211a and does not drive the base 11a, and the base 11a still keeps being positioned at the first position. Until the rack 22a drives the rotating shaft 121S to enter the second guiding section 212a from the first guiding section 211a, the rotating shaft 121S enters the second section 2452 of the limiting groove 245 and abuts against an edge of the second section 2452, so that the rack 22a can be linked with the limiting groove 245 through the rotating shaft 121S. Meanwhile, as shown in fig. 14, the rack 22a also abuts against the bump 244 to interlock the bump 244. Therefore, the rack 22a and the rotating shaft 121S driven by the rack 22a can push the base 11a together, so that the base 11a moves linearly from the first position of fig. 14 to the second position of fig. 15.

As described above, when the second reflecting plate assembly 12 is rotated from the storage position to the second operating position or the base 11a is linearly moved from the first position to the second position, the restoring member 16 stores the elastic force.

The foregoing describes the rotation process of the second reflecting plate assembly 12 from the storage position, the first working position to the second working position in order. Conversely, when the second reflecting plate assembly 12 is to be rotated from the second working position to the first working position to the storage position in sequence, the rack 22a can be operated in the opposite direction, so as to drive the rotating shaft 121S to abut against the other edge of the second section 2452, so as to push the base 11a to leave the second position and move linearly to the first position, and the second reflecting plate assembly 12 is rotated from the second working position to the first working position. When the second reflecting plate assembly 12 is located at the first working position, the rotating shaft 121S is located at the junction of the first guiding section 211a and the second guiding section 212a, and the base 11a is located at the first position. Then, the rack 22a continues to run, so that the rotating shaft 121S enters the first guiding section 211a, and the rotating shaft 121S enters the first section 2451 but does not abut against the first section 2451. In this way, the rack 22a can be separated from the bump 244, and the base 11a is not driven to move continuously, so that the base 11a is positioned at the first position. The rack 22a continuously drives the rotating shaft 121S to move in the first guiding section 211a, so that the second reflecting assembly 12 is rotated from the first working position to the storage position under the condition that the base 11a is positioned at the first position.

In addition, in the above process, the second reflecting plate assembly 12 can stably push the carrier 121 by the elastic force stored in the restoring member 16.

According to the head-up display device of the embodiment of the invention, the second reflecting plate assembly is rotated, and the base is linearly moved at different time points. Thus, even drivers of different heights can view the virtual image at the same overlooking angle.

Of course, the present invention is capable of other various embodiments and its several details are capable of modification and variation in light of the present invention, as will be apparent to those skilled in the art, without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A head-up display device, comprising:

a transmission mechanism comprising:

an inclined angle guiding groove having a first guiding section and a second guiding section;

a rack;

the driving wheel is meshed with the rack and drives the rack; a kind of electronic device with high-pressure air-conditioning system

A traction assembly;

a driving mechanism for driving the transmission mechanism to operate; and

the optical assembly is connected to the transmission mechanism and comprises a base and a reflecting plate assembly, the reflecting plate assembly is rotatably arranged on the base, the reflecting plate assembly comprises a carrier and a reflecting plate arranged on the carrier, the carrier comprises a rotating shaft, the rotating shaft is accommodated in the inclined angle guide groove, the rack is linked with the rotating shaft to drive the rotating shaft to move in the inclined angle guide groove, the base is driven by the transmission mechanism to linearly move between a first position and a second position, the traction assembly is fixedly arranged on the base and used for traction the linear movement of the base between the first position and the second position, and the reflecting plate assembly is driven by the transmission mechanism to rotate among a storage position, a first working position and a second working position;

wherein, in the process that the reflecting plate component rotates between the storage position and the first working position, the base keeps being positioned at the first position;

in the process of rotating the reflecting plate assembly between the first working position and the second working position, the base moves linearly between the first position and the second position;

in the process that the rack drives the rotating shaft to move in the first guide section, the rotating shaft is guided by the first guide section to drive the reflecting plate component to rotate between the storage position and the first working position, and the traction component is not linked with the rack to enable the base to be kept at the first position;

in the process that the rack drives the rotating shaft to move in the second guide section, the rotating shaft is guided by the second guide section to drive the reflecting plate component to rotate between the first working position and the second working position, and the traction component is linked with the rack to drive the base to linearly move between the first position and the second position.

2. The head-up display device of claim 1, wherein the optical assembly further comprises an image generating unit fixedly disposed on the base.

3. The head-up display device of claim 1, wherein the tilt guide groove is disposed at the rack.

4. The head-up display device of claim 3, wherein the traction assembly comprises a tooth;

wherein, in the process that the rack drives the rotating shaft to move in the second guiding section, the driving wheel is meshed with the tooth part at the same time so as to drive the base;

in the process that the rack drives the rotating shaft to move in the first guide section, the driving wheel is separated from the tooth part.

5. The head-up display device of claim 4, wherein the traction assembly further comprises a protrusion, the rack having a chute, the protrusion being received in the chute and being displaced between a first end and a second end of the chute as the rack moves;

when the driving wheel is meshed with the tooth part at the same time, the convex column is positioned at the second end of the chute;

when the driving wheel is separated from the tooth part, the convex column is separated from the second end of the chute, and when the reflecting plate component is positioned at the storage position, the convex column is positioned at the first end of the chute.

6. The head-up display device of claim 3, wherein the traction assembly comprises a post, the rack having a chute, the post being received in the chute;

wherein, in the process that the reflecting plate component rotates between the storage position and the first working position, the convex column shifts between a first end and a second end of the chute;

the convex column is abutted against and positioned at the second end of the chute in the process of rotating the reflecting plate assembly between the first working position and the second working position.

7. The head-up display device of claim 6, wherein the transmission mechanism further comprises a spring disposed between the first end of the chute and the post.

8. The head-up display device of claim 3, further comprising a base, wherein the transmission mechanism, the driving mechanism and the optical assembly are respectively disposed on the base, the base has a guiding wall, and an inclination angle is formed between an extending direction of the guiding wall and a moving direction of the rack;

and in the process that the rack drives the rotating shaft to move in the second guide section, the rotating shaft is propped against the second guide section and the guide wall surface together.

9. The head-up display device of claim 1, wherein the transmission mechanism further comprises a latch member and the traction assembly comprises a pin member;

wherein, in the course that the rack drives the spindle to move in the first guide section, the latch element is meshed with the rack, and the pin element is limited by the latch element and is not linked with the rack;

in the process that the rack drives the rotating shaft to move in the second guide section, the lock catch piece is separated from the rack and releases the pin piece, and the pin piece is linked with the rack.

10. The head-up display device of claim 1, further comprising a base, wherein the transmission mechanism, the driving mechanism and the optical assembly are disposed on the base, respectively, and the tilt guide slot is disposed on the base.

11. The head-up display device of claim 10, wherein the traction assembly comprises a bump and a limiting groove, the limiting groove has a first section and a second section, and the rotating shaft is accommodated in the limiting groove;

wherein, in the process that the rack drives the rotating shaft to move in the first guiding section, the rotating shaft is positioned at the first section but not abutted against the first section, and the rack is separated from the lug;

in the process that the rack drives the rotating shaft to move in the second guide section, the rotating shaft is positioned on the second section and abuts against the second section, and the rack abuts against the lug.