Head-up display and vehicle

Abstract

The utility model discloses a head-up display and a vehicle, the head-up display comprises a housing, a lens mechanism, a driving mechanism and a blocking mechanism, and the housing is provided with an accommodating cavity; the lens mechanism is accommodated in the accommodating cavity, and the lens mechanism is rotatably connected to the shell; the driving mechanism comprises a mounting seat and a driving assembly mounted on the mounting seat, the mounting seat is accommodated in the accommodating cavity, the driving assembly is connected with the lens mechanism, and the driving assembly is used for driving the lens mechanism to rotate relative to the shell; the blocking mechanism is connected to the side, close to the mounting base, of the lens mechanism and used for blocking volatile matter of the lubricating agent attached to the driving mechanism. Therefore, the volatile matter of the lubricant attached to the driving mechanism is blocked by arranging the blocking mechanism, the risk that the volatile matter acts on the lens of the lens mechanism to pollute the lens is reduced, the influence of the volatile matter of the lubricant on the projection effect is reduced, and the stability of the head-up display is improved.

Description

Technical Field

[0001] This utility model relates to the automotive field, and in particular to a head-up display and a vehicle. Background Technology

[0002] Head-up displays (HUDs) are commonly used auxiliary tools in the automotive industry. They can connect to a car and project relevant driving information onto the windshield. Drivers can obtain information about the car's current driving status, such as speed, simply by looking at the windshield.

[0003] The head-up display includes a housing, an image generating unit, a lens mechanism, and a driving mechanism. The light generated by the image generating unit is reflected by the lens and then projected onto the windshield of the car. The lens mechanism includes a bracket and a lens mounted on the bracket. The driving mechanism adjusts the lens by rotating the bracket by a preset angle to adjust the height of the display screen to suit different user needs. It also prevents external light from being reflected back through the lens and damaging the image generating unit when the head-up display is not in use.

[0004] The inventors of this application discovered that drive mechanisms typically require lubricating oil to reduce friction. Due to the high temperature inside the engine compartment of a car during operation, some additives in the lubricating oil may change from a liquid to a gaseous state under high temperature. In other words, some additives may volatilize due to high temperature. The volatilized substances can contaminate the lens, affecting the projection effect of the lens and reducing the stability of the head-up display. Utility Model Content

[0005] To address the aforementioned technical problems, this utility model provides a head-up display and a vehicle that can improve stability.

[0006] The technical problem solved by this utility model embodiment is addressed by the following technical solution:

[0007] A head-up display includes a housing, a lens mechanism, a drive mechanism, and a blocking mechanism. The housing has a receiving cavity. The lens mechanism is housed in the receiving cavity and is rotatably connected to the housing. The drive mechanism includes a mounting base and a drive assembly mounted on the mounting base. The mounting base is housed within the receiving cavity, and the drive assembly is connected to the lens mechanism. The drive assembly drives the lens mechanism to rotate relative to the housing. The blocking mechanism is connected to the side of the lens mechanism near the mounting base and blocks volatiles of lubricant adhering to the drive mechanism.

[0008] In some embodiments, along the first direction, the blocking mechanism is located above the driving mechanism; wherein, the axis of rotation of the lens mechanism relative to the housing is defined as the first axis, the axis perpendicular to the lens mechanism is defined as the second axis, and the direction perpendicular to the first axis and the second axis is defined as the first direction.

[0009] In some embodiments, the blocking mechanism includes a baffle connected to the side of the lens mechanism facing the mounting base, the baffle being located between the drive assembly and the lens mechanism, the baffle being used to block volatiles of lubricant adhering to the drive mechanism.

[0010] In some embodiments, the baffle includes a connecting portion, a first extension portion, and a second extension portion connected together. The connecting portion is connected to the side of the lens mechanism facing the mounting base. The first extension portion and the second extension portion are located on opposite sides of the connecting portion. Both the first extension portion and the second extension portion extend beyond the edge of the side of the lens mechanism facing the mounting base.

[0011] In some embodiments, the blocking mechanism further includes a first side plate and a second side plate, the first side plate and the second side plate being respectively connected to opposite sides of the baffle, and the driving assembly being located between the first side plate and the second side plate.

[0012] In some embodiments, both the first side plate and the second side plate are provided with guide grooves on the side facing the drive assembly, and the guide grooves are configured to extend along the first direction.

[0013] In some embodiments, the head-up display further includes an image generation unit and a control board, both of which are housed in the receiving cavity. The image generation unit and the driving assembly are both connected to the control board. The image generation unit is used to emit light to the lens mechanism, and the control board is used to control the operation of the driving assembly.

[0014] In some embodiments, the lens mechanism includes a lens and a bracket, the bracket being rotatably connected to the housing, the lens being disposed on the bracket, and the blocking mechanism being provided on the side of the bracket facing the mounting base.

[0015] In some embodiments, the drive assembly includes a power element, a worm gear, and a helical gear. The helical gear is connected to the lens mechanism, and the worm gear is connected to the output end of the power element. The power element is used to drive the worm gear to rotate the helical gear, so that the lens mechanism rotates around the first axis.

[0016] The technical problem solved by this utility model embodiment also adopts the following technical solution:

[0017] A means of transportation, including the aforementioned head-up display.

[0018] The beneficial effects of this utility model embodiment are as follows: The head-up display provided in this application embodiment includes a housing, a lens mechanism, a drive mechanism, and a blocking mechanism. The housing has a receiving cavity; the lens mechanism is housed in the receiving cavity and is rotatably connected to the housing; the drive mechanism includes a mounting base and a drive assembly mounted on the mounting base. The mounting base is housed in the receiving cavity, and the drive assembly is connected to the lens mechanism, which drives the lens mechanism to rotate relative to the housing; the blocking mechanism is connected to the side of the lens mechanism near the mounting base and is used to block the volatiles of lubricant adhering to the drive mechanism. Thus, by setting the blocking mechanism to block the volatiles of lubricant adhering to the drive mechanism, the risk of the volatiles acting on the lens of the lens mechanism and causing lens contamination is reduced, the impact of the volatiles of lubricant on the projection effect is reduced, and the stability of the head-up display is improved. Attached Figure Description

[0019] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0020] Figure 1 This is a structural block diagram of a head-up display according to one embodiment of this application;

[0021] Figure 2 This is a schematic diagram of part of the structure of a head-up display;

[0022] Figure 3 yes Figure 2 A sectional view;

[0023] Figure 4 This is a partial structural diagram of the drive mechanism;

[0024] Figure 5 yes Figure 2 A schematic diagram of some of the structures in it;

[0025] In the diagram: 1. Head-up display; 2. Housing; 3. Lens mechanism; 5. Drive mechanism;

[0026] 6. Blocking mechanism; 7. Image generation unit; 8. Control board; 501. Cavity; 502. Groove;

[0027] 31. Lens; 32. Support; 321. Rotating shaft; 322. Support body; 31a. First lens; 32a. First support;

[0028] 51. Mounting base; 52. Drive assembly; 53. Spring; 511. Positioning pin;

[0029] 521. Power component; 522. Worm gear; 523. Helical gear;

[0030] 61. Baffle; 62. First side plate; 63. Second side plate;

[0031] 611. Connecting part; 612. First extension part; 613. Second extension part; 601. Guide groove. Detailed Implementation

[0032] To facilitate understanding of this utility model, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is described as "fixed to" another element, it can be directly on the other element, or one or more intermediate elements may exist between them. When an element is described as "connected" to another element, it can be directly connected to the other element, or one or more intermediate elements may exist between them. The terms "upper," "lower," "inner," "outer," "vertical," "horizontal," etc., used in this specification indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0033] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0034] Furthermore, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0035] like Figure 1-2As shown, one embodiment of the head-up display 1 provided in this application includes a housing 2, a lens mechanism 3, a drive mechanism 5, and a blocking mechanism 6. The housing 2 has a receiving cavity, in which the lens mechanism 3, drive mechanism 5, and blocking mechanism 6 are all housed. The lens mechanism 3 is rotatably connected to the housing 2. The drive mechanism 5 is connected to both the lens mechanism 3 and the housing 2. The blocking mechanism 6 is connected to the side of the lens mechanism 3 closest to the drive mechanism 5. The drive mechanism 5 drives the lens mechanism 3 to rotate relative to the housing 2 around a first axis L1. The blocking mechanism 6 blocks volatiles adhering to the lubricant inside the drive mechanism 5.

[0036] Thus, by setting up the blocking mechanism 6 to block the volatiles of the lubricant attached to the drive mechanism 5, the risk of the volatiles acting on the lens 31 of the lens mechanism 3 and causing the lens 31 to become contaminated is reduced, the impact of the volatiles of the lubricant on the projection effect is reduced, and the stability of the head-up display 1 is improved.

[0037] In some embodiments, such as Figure 2 As shown, the lens mechanism 3 includes a lens 31 and a support 32. The support 32 is rotatably connected to the housing 2, and the lens 31 is mounted on the support 32 and rotates synchronously with the support 32. The support 32 includes a rotating shaft 321 and a frame body 322 connected to each other. The rotating shaft 321 is rotatably connected to the housing 2, and the frame body 322 is connected to the drive mechanism 5. The lens 31 is mounted on the frame body 322. Thus, when the drive mechanism 5 drives the frame body 322 to rotate around the rotating shaft 321, the lens 31 mounted on the frame body 322 will rotate synchronously, thereby adjusting its position.

[0038] It should be noted that the first axis L1 mentioned above refers to the axis of the rotating shaft 321. The second axis L2 is defined as the straight line perpendicular to the lens mechanism 3, which is a straight line that passes through both the lens 31 and the support 32. It is understandable that the number of supports 32 can be increased or decreased depending on the number of lenses 31. For example, when there are two lenses 31, the number of supports 32 is two; when there are three lenses 31, the number of supports 32 is three.

[0039] In some embodiments, there are two brackets 32 and two lenses 31. The two lenses 31 can be divided into a first lens 31a and a second lens (not shown). The two brackets 32 can be correspondingly divided into a first bracket 32a and a second bracket (not shown). The first lens 31a is disposed on the first bracket 32a, and the second lens is disposed on the second bracket. The two sides of the first bracket 32a are rotatably connected to the housing 2. Of course, the second bracket can be fixedly installed on the housing 2 or rotatably installed on the housing 2, depending on the needs. During operation, after the second lens is irradiated with light containing relevant driving information, the second lens reflects the light back to the first lens 31a. The light reflected by the first lens 31a can be projected onto the windshield so that the user can receive the light reflected from the windshield and obtain relevant driving information, such as the vehicle's speed.

[0040] In other embodiments, the support 32 and the lens 31 are integrally formed to form the lens mechanism 3. That is, the lens mechanism 3 can be formed by processing the blank material that makes the lens 31 to simultaneously form the external shape of the support 32. In this case, the support 32 can directly serve as the lens 31.

[0041] In some embodiments, such as Figure 3 As shown, the drive mechanism 5 includes a mounting base 51 and a drive assembly 52 mounted on the mounting base 51. The mounting base 51 is connected to the housing 2, and the drive assembly 52 is connected to the lens mechanism 3. The drive assembly 52 is used to drive the lens mechanism 3 to rotate relative to the housing 2.

[0042] like Figure 3 and Figure 4 As shown, the mounting base 51 is provided with a cavity 501 for accommodating lubricant dripping from the drive assembly 52, and the bottom of the mounting base 51 is provided with a groove 502 communicating with the cavity 501. The groove 502 is located below the drive assembly 52 and is used to collect a portion of the lubricant dripping from the drive assembly 52.

[0043] In some embodiments, such as Figure 3 As shown, the drive assembly 52 includes a power component 521, a worm gear 522, and a helical gear 523. The output end of the power component 521 is connected to the worm gear 522, and the worm gear 522 is connected to the helical gear 523. The power component 521 is mounted on the mounting base 51, the helical gear 523 is connected to the lens mechanism 3, and the worm gear 522 is located within the mounting base 51 so that lubricant applied to the worm gear 522 can drip into the cavity 501. The power component 521 drives the worm gear 522 to rotate the helical gear 523, causing the lens mechanism 3 to rotate around the first axis L1. The helical gear 523 is a non-complete worm gear and is integrally formed with the frame body 322. In this embodiment, the mounting base 51 is a worm gear seat.

[0044] Understandably, the drive assembly 52 can also be other structures, as long as it enables the drive bracket 32 ​​to rotate. For example, the drive assembly 52 includes a power component 521, a toothed gear block (not shown), and a power gear (not shown). The gear block meshes with the power gear, the power gear is connected to the output end of the power component 521, and the gear block is fixedly connected to the bracket 32. The power component 521 drives the power gear to rotate, so that the gear block drives the bracket 32 ​​to rotate. The gear block is not a complete gear; it has a toothed portion that meshes with the power gear and a non-toothed portion that connects to the bracket body 322.

[0045] The power component 521 can be a drive motor or other structures that can drive the worm gear 522 to rotate, and the specific configuration can be selected according to the needs.

[0046] In some embodiments, such as Figure 3 and Figure 4 As shown, the drive mechanism 5 also includes a spring plate 53, which is mounted on the mounting base 51 and abuts against the power component 521 and the worm gear 522. The spring plate 53 includes a first part 531, a middle part (not shown), and a second part 532 connected together. The first part 531 is located between the worm gear 522 and the power component 521, and is used to apply a preload force along the axial direction M of the worm gear 522 to reduce the axial clearance between the worm gear 522 and the helical gear 523. The second part 532 is located on the side of the mounting base 51 near the housing 2, and is used to apply a force along the first direction Z to the mounting base 51, so that the worm gear 522 mounted on the mounting base 51 and the helical gear 523 are in close contact in the first direction Z, preventing excessive clearance between the worm gear 522 and the helical gear 523 from affecting the transmission effect. In this way, the spring 53 can apply a force along the first direction Z and the axial force M of the worm 522, which reduces the meshing clearance between the worm 522 and the helical gear 523, and helps to improve the stability of the drive assembly 52 driving the support 32 to swing.

[0047] In some embodiments, the drive mechanism 5 further includes a limiting plate (not shown), which is mounted on the mounting base 51. The limiting plate is equipped with a detector (not shown) to detect whether the frame body 322 has swung to its limit position. When the frame body 322 is detected to have swung to its limit position, the detector sends a signal to the control panel of the head-up display to control the power component 521 to stop working. In this embodiment, the mounting base 51 is provided with at least two positioning posts 511 for positioning and mounting the limiting plate.

[0048] Understandably, the position of the blocking mechanism 6 varies depending on the position of the driving mechanism 5, and the blocking mechanism 6 is always located between the lens mechanism 3 and the driving mechanism 5. For example, when the driving mechanism 5 is located below the lens mechanism 3, the blocking mechanism 6 is located above the lens mechanism 3; or, for another example, when the driving mechanism 5 is located to the left of the lens mechanism 3, the blocking mechanism 6 is also located to the left of the lens mechanism 3, thus placing the blocking mechanism 6 between the driving mechanism 5 and the lens mechanism 3. Yet another example, when the driving mechanism 5 is located to the right of the lens mechanism 3, the blocking mechanism 6 is also located to the right of the lens mechanism 3, and again, placing the blocking mechanism 6 between the driving mechanism 5 and the lens mechanism 3.

[0049] In some embodiments, such as Figure 5 As shown, along the first direction Z, the blocking mechanism 6 is located above the driving mechanism 5. The first direction Z is a direction that is perpendicular to both the first axis L1 and the second axis L2.

[0050] In some embodiments, such as Figure 5 As shown, the blocking mechanism 6 includes a baffle 61, which is connected to the side of the lens mechanism 3 facing the drive mechanism 5. The baffle 61 is located between the drive assembly 52 and the lens mechanism 3, i.e., along the first direction Z, above the drive mechanism 5. The baffle 61 is used to block the volatiles of the lubricant adhering to the drive mechanism 5. In this way, the baffle 61 can block the volatiles, reducing the risk of the volatiles directly acting on the lens 31 and contaminating it, reducing the risk of the projection effect of the lens 31 being affected, and thus improving the stability of the head-up display 1.

[0051] In some embodiments, such as Figure 5 As shown, the baffle 61 includes a connecting portion 611, a first extension portion 612, and a second extension portion 613 connected together. The connecting portion 611 is connected to the side of the lens mechanism 3 facing the mounting base 51. The first extension portion 612 and the second extension portion 613 are located on opposite sides of the connecting portion 611. Both the first extension portion 612 and the second extension portion 613 extend beyond the edge of the lens mechanism 3 facing the mounting base 51. That is, both the first extension portion 612 and the second extension portion 613 extend beyond the edge of the frame body 322 facing the mounting base 51. This helps to block the volatilization of lubricant from the cavity 501 and the volatilization of lubricant adhering to the drive assembly 52.

[0052] In some embodiments, such as Figure 5As shown, the blocking mechanism 6 also includes a first side plate 62 and a second side plate 63, which are respectively connected to opposite sides of the baffle 61, and the drive assembly 52 is located between the first side plate 62 and the second side plate 63. The first side plate 62, the second side plate 63 and the baffle 61 together form a U-shaped blocking structure, which is more conducive to blocking the volatiles of lubricant in the cavity 501 and the volatiles of lubricant attached to the drive assembly 52, reducing the risk of volatiles escaping from both sides of the baffle 61 and contaminating the lens 31. Furthermore, under certain conditions (such as lowering the temperature of the environment where the lubricant is located), the volatiles will re-liquefy after contacting the baffle 61 and can slide down along the first side plate 62 or the second side plate 63 into the cavity 501.

[0053] In some embodiments, such as Figure 3 and Figure 5 As shown, the first side plate 62 and the second side plate 63 are both provided with guide grooves 601 on the side facing the drive mechanism 5. The guide grooves 601 are configured to extend along the direction of the baffle 61 toward the mounting base 51, which is more conducive to guiding the volatiles to slide into the cavity 501 after reliquefaction.

[0054] In some embodiments, along the thickness direction of the first side plate 62 and the second side plate 63, the maximum distance between the first side plate 62 and the second side plate 63 is d, and the distance between the two opposing inner wall surfaces of the mounting base 51 is D, satisfying D > d. Thus, the first side plate 62 and the second side plate 63 can at least partially extend into the cavity 501 of the mounting base 51, so as to better block volatiles.

[0055] In some embodiments, such as Figure 1 As shown, the head-up display 1 also includes an image generation unit 7, which is housed within a receiving cavity. The image generation unit 7 is used to emit light to the lens mechanism 3. Understandably, the image generation unit 7 can employ different imaging principles, such as TFT-LCD imaging, DLP imaging, LCOS imaging, and LBS-MEMS imaging, which can be selected and configured according to needs.

[0056] In some embodiments, such as Figure 1 As shown, the head-up display 1 also includes a control board 8, which is housed in a receiving cavity. The control board 8 is connected to the image generation unit 7 and the drive mechanism 5 respectively, and is used to control the operation of the drive mechanism 5.

[0057] The head-up display 1 provided in this embodiment includes a housing 2, a lens mechanism 3, a drive mechanism 5, and a blocking mechanism 6. The housing 2 has a receiving cavity; the lens mechanism 3 is housed in the receiving cavity and is rotatably connected to the housing 2; the drive mechanism 5 includes a mounting base 51 and a drive assembly 52 mounted on the mounting base 51. The mounting base 51 is housed in the receiving cavity, and the drive assembly 52 is connected to the lens mechanism 3 and is used to drive the lens mechanism 3 to rotate; the blocking mechanism 6 is connected to the side of the lens mechanism 3 near the mounting base 51 and is used to block the volatiles of lubricant adhering to the drive mechanism 5. Thus, by providing the blocking mechanism 6 to block the volatiles of lubricant adhering to the drive mechanism 5, the risk of the volatiles acting on the lens 31 of the lens mechanism 3 and causing contamination of the lens 31 is reduced, the impact of the volatiles of lubricant on the projection effect is reduced, and the stability of the head-up display 1 is improved.

[0058] Another embodiment of this application provides a vehicle, including the head-up display 1 of the above embodiment. The vehicle includes, but is not limited to, cars, buses, helicopters, electric vehicles, etc., as long as the head-up display 1 can be installed to display relevant driving information on the windshield.

[0059] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A heads-up display, characterized in that, include: The shell has a receiving cavity; A lens mechanism is housed in the receiving cavity and is rotatably connected to the housing. A drive mechanism includes a mounting base and a drive assembly mounted on the mounting base, the mounting base being housed within the receiving cavity, the drive assembly being connected to the lens mechanism, and the drive assembly being used to drive the lens mechanism to rotate relative to the housing; A blocking mechanism is connected to the side of the lens mechanism near the mounting base, and the blocking mechanism is used to block the volatiles of lubricant adhering to the drive mechanism.

2. The head-up display according to claim 1, characterized in that, Along the first direction, the blocking mechanism is located above the driving mechanism; Wherein, the axis on which the lens mechanism rotates relative to the housing is defined as the first axis, the straight line perpendicular to the lens mechanism is defined as the second axis, and the direction perpendicular to the first axis and the second axis is defined as the first direction.

3. The head-up display according to claim 2, characterized in that, The blocking mechanism includes a baffle connected to the side of the lens mechanism facing the mounting base, the baffle being located between the drive assembly and the lens mechanism, and the baffle being used to block the volatiles of lubricant adhering to the drive mechanism.

4. The head-up display according to claim 3, characterized in that, The baffle includes a connecting portion, a first extension portion, and a second extension portion connected together. The connecting portion is connected to the side of the lens mechanism facing the mounting base. The first extension portion and the second extension portion are located on opposite sides of the connecting portion. Both the first extension portion and the second extension portion extend beyond the edge of the side of the lens mechanism facing the mounting base.

5. The head-up display according to claim 3, characterized in that, The blocking mechanism further includes a first side plate and a second side plate, which are respectively connected to opposite sides of the baffle, and the driving component is located between the first side plate and the second side plate.

6. The head-up display according to claim 5, characterized in that, Both the first side plate and the second side plate have guide grooves on the side facing the drive assembly, and the guide grooves are configured to extend along the first direction.

7. The head-up display according to claim 1, characterized in that, It also includes an image generation unit and a control board, both of which are housed in the receiving cavity. Both the image generation unit and the driving assembly are connected to the control board. The image generation unit is used to emit light to the lens mechanism, and the control board is used to control the operation of the driving assembly.

8. The head-up display according to claim 1, characterized in that, The lens mechanism includes a lens and a bracket, the bracket being rotatably connected to the housing, the lens being disposed on the bracket, and the blocking mechanism being provided on the side of the bracket facing the mounting base.

9. The head-up display according to any one of claims 2-6, characterized in that, The drive assembly includes a power component, a worm gear, and a helical gear. The helical gear is connected to the lens mechanism, and the worm gear is connected to the output end of the power component. The power component is used to drive the worm gear to rotate the helical gear, so that the lens mechanism rotates around the first axis.

10. A means of transportation, characterized in that, Including the head-up display as described in any one of claims 1-9.

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