HUD push-pull transmission device and HUD system

Abstract

The utility model provides an HUD push-pull type transmission device and an HUD system, the HUD push-pull type transmission device is used for driving a curved mirror to rotate around a fixed shaft, the HUD push-pull type transmission device comprises a clamping mechanism, the clamping mechanism is provided with a clamping space used for clamping the curved mirror, and a clamped part of the curved mirror is abutted against the clamping space; and the transmission mechanism comprises a sliding structure, the sliding structure is connected with the clamping mechanism, and the sliding structure can drive the clamping mechanism to move in the first direction so that the curved mirror can rotate around the fixing shaft. The HUD transmission system solves the problems that an HUD transmission system in the prior art is large in size, unstable in work and difficult to assemble.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle-mounted display equipment, in particular to a HUD push-pull transmission device and a HUD system. Background Art

[0002] At present, when OEMs are evaluating new models in the early stage, the HUD (Head Up Display) transmission system is large in size, resulting in insufficient space. At the same time, it adds difficulty to the design of other vehicle body data except HUD, prolongs the development time, and even causes the partial sacrifice of other vehicle body data, increasing safety hazards. In addition, the existing transmission methods are usually gear transmission and worm gear transmission. In gear transmission, torsion springs are used to eliminate the gap in the X-axis direction. When reaching the high position, the motor is prone to the problem of not rotating, resulting in excessive pressure on the curved mirror and a high risk of deformation of the curved mirror surface. In worm gear transmission, tension springs are used to eliminate the gap in the X-axis direction. There are many HUD assembly processes, which greatly increases time and labor costs.

[0003] That is to say, the HUD transmission system in the prior art has the problems of large size, unstable operation and difficult assembly. Utility Model Content

[0004] The main purpose of the utility model is to provide a HUD push-pull transmission device and a HUD system to solve the problems of large volume, unstable operation and difficult assembly of the HUD transmission system in the prior art.

[0005] In order to achieve the above-mentioned purpose, according to one aspect of the utility model, a HUD push-pull transmission device is provided, and the HUD push-pull transmission device is used to drive the curved mirror to rotate around a fixed axis. The HUD push-pull transmission device includes: a clamping mechanism, the clamping mechanism has a clamping space for clamping the curved mirror, and the clamped part of the curved mirror is pressed against the clamping space; a transmission mechanism, the transmission mechanism includes a sliding structure, the sliding structure is connected to the clamping mechanism, and the sliding structure can drive the clamping mechanism to move along a first direction to rotate the curved mirror around the fixed axis.

[0006] Furthermore, the clamping mechanism includes a resisting structure, which can provide a resisting force toward the clamping space so that the clamped part is stably connected in the clamping space.

[0007] Furthermore, at least a portion of the abutting structure is made of elastic material.

[0008] Furthermore, the abutting structure includes a fixed section and an abutting section which are bent in sequence, the fixed section is connected to the sliding structure, the abutting section is bent toward the clamping space and provides an abutting top portion, and the abutting top portion is used to contact the clamped portion.

[0009] Furthermore, the clamping mechanism also includes a stop structure, a clamping space is formed between the stop structure and the resisting structure, and a support portion is provided on one side of the stop structure facing the clamping space, the support portion is used to support the clamped portion so that the resisting structure presses the clamped portion against the support portion.

[0010] Furthermore, the stop structure and the abutting structure are arranged opposite to each other and at intervals; and / or the stop structure is connected to the sliding structure.

[0011] Furthermore, the supporting portion has an arc-shaped surface protruding toward the clamping space.

[0012] Furthermore, the stop structure also includes a stop base, the stop base is connected to the sliding structure, and the support portion is arranged on a side of the stop base facing the clamping space.

[0013] Furthermore, the contact position between the clamped portion and the abutting structure forms a matching position, the contact position between the clamped portion and the supporting portion forms an abutting position, and the distance between the matching position and the abutting position is smaller than the thickness of the clamped portion.

[0014] Furthermore, the distance between the abutting position and the edge of the clamped portion is greater than or equal to 3 mm.

[0015] Furthermore, the transmission mechanism also includes: a fixed seat, the fixed seat has an installation space; a screw rod, the screw rod is arranged in the installation space and extends along the first direction, and the sliding structure is arranged on the screw rod; and a driving member, the driving member is connected to the screw rod so that the screw rod rotates to drive the sliding structure to move.

[0016] Furthermore, the transmission mechanism also includes a guide rail extending in the same direction as the lead screw, the guide rail passes through the sliding structure, and the sliding structure can slide along the guide rail.

[0017] Further, the guide rail is located on a side of the lead screw away from the curved mirror; and / or the driving member is located outside the fixing seat.

[0018] Furthermore, the transmission mechanism also includes a shockproof block, which is fixed on the fixing seat and is located on one side of the driving member.

[0019] Furthermore, the sliding structure has a receiving groove on one side facing the clamping mechanism for the clamped part to extend into, and the distance between the clamped part and the bottom of the receiving groove is greater than or equal to 1 mm.

[0020] According to another aspect of the utility model, a HUD system is provided, comprising a curved mirror and the above-mentioned HUD push-pull transmission device.

[0021] By applying the technical solution of the utility model, a HUD push-pull transmission device is used to drive the curved mirror to rotate around a fixed axis. The HUD push-pull transmission device includes a clamping mechanism and a transmission mechanism. The clamping mechanism has a clamping space for clamping the curved mirror, and the clamped portion of the curved mirror is pressed against the clamping space; the transmission mechanism includes a sliding structure, which is connected to the clamping mechanism. The sliding structure can drive the clamping mechanism to move along a first direction to rotate the curved mirror around the fixed axis.

[0022] By setting a clamping mechanism to provide a clamping space, the clamped part of the curved mirror is pressed against the clamping space, and the gap between the clamped part and the HUD push-pull transmission device during the transmission process is eliminated in the first direction. There is no need to use external force to eliminate the gap, which ensures the accuracy of gear transmission, optimizes the processing and assembly process, and reduces production costs. The sliding structure drives the clamping mechanism to move in the first direction, thereby driving the curved mirror to rotate. The sliding process is smooth and there is no jamming. While the transmission is accurate, excessive pressure on the curved mirror is avoided to cause its deformation. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings constituting part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0024] Figure 1 A schematic diagram showing the structure of a HUD system in an optional embodiment of the utility model when it is in an initial state;

[0025] Figure 2 Shows Figure 1 An enlarged schematic diagram of part A in FIG.

[0026] Figure 3 Shows Figure 1 A structural schematic diagram of the HUD system in the embodiment when the curved mirror is in the first state;

[0027] Figure 4 Shows Figure 1 A schematic diagram of the structure of the HUD system when the curved mirror is in the second state;

[0028] Figure 5 A schematic diagram showing a curved mirror and a limit switch of a HUD system in an optional embodiment of the utility model when they are in contact position.

[0029] The above drawings include the following reference numerals:

[0030] 10. Clamping mechanism; 11. Pushing structure; 111. Fixed section; 112. Pushing section; 12. Stopping structure; 121. Supporting portion; 122. Stopping base; 20. Transmission mechanism; 21. Sliding structure; 211. Accommodating groove; 22. Fixed seat; 23. Screw rod; 24. Driving member; 25. Guide rail; 26. Shockproof block; 30. Curved mirror; 31. Clamped portion; 32. Fixed shaft; 40. Limit switch. DETAILED DESCRIPTION

[0031] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0032] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0033] In the present invention, unless otherwise specified, the directional words used, such as "up, down, top, bottom", usually refer to the directions shown in the drawings, or to the components themselves in the vertical, perpendicular or gravity directions; similarly, for ease of understanding and description, "inside and outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directional words are not used to limit the present invention.

[0034] In order to solve the problems in the prior art that the HUD transmission system is large in size, unstable in operation and difficult to assemble, the utility model provides a HUD push-pull transmission device and a HUD system.

[0035] like Figures 1 to 5 As shown, the HUD push-pull transmission device is used to drive the curved mirror 30 to rotate around the fixed axis 32. The HUD push-pull transmission device includes a clamping mechanism 10 and a transmission mechanism 20. The clamping mechanism 10 has a clamping space for clamping the curved mirror 30, and the clamped portion 31 of the curved mirror 30 is pressed against the clamping space; the transmission mechanism 20 includes a sliding structure 21, which is connected to the clamping mechanism 10. The sliding structure 21 can drive the clamping mechanism 10 to move along the first direction to rotate the curved mirror 30 around the fixed axis 32.

[0036] By providing a clamping space with the clamping mechanism 10, the clamped portion 31 of the curved mirror 30 is pressed against the clamping space, and the gap between the clamped portion 31 and the HUD push-pull transmission device during the transmission process is eliminated in the first direction, without the need to eliminate the gap with the help of external force, thereby ensuring accurate gear transmission, optimizing the processing and assembly process, and reducing production costs. The sliding structure 21 drives the clamping mechanism 10 to move along the first direction, thereby driving the curved mirror 30 to rotate. The sliding process is smooth and free of jamming, and the transmission is accurate while avoiding excessive pressure on the curved mirror 30 to cause its deformation.

[0037] like Figure 3 and Figure 4 The curved mirror 30 is shown relative to Figure 1 Schematic diagram of the initial state after clockwise and counterclockwise rotation. Figure 3 As shown, when the sliding structure 21 moves to the left, it drives the curved mirror 30 to rotate clockwise. Figure 4 As shown, when the sliding structure 21 moves to the right, it drives the curved mirror 30 to rotate counterclockwise.

[0038] Specifically, the clamping mechanism 10 includes a resisting structure 11, which can provide a resisting force toward the clamping space so that the clamped portion 31 is stably connected in the clamping space. The resisting structure 11 resists the clamped portion 31, ensuring that there is no gap between the clamped portion 31 and the clamping mechanism 10 in the first direction, ensuring that the clamped portion 31 is stably connected in the clamping space.

[0039] Specifically, at least a portion of the resisting structure 11 is made of an elastic material, and the elastic material is used to continuously provide a resisting force to resist the clamped portion 31, thereby ensuring a stable connection during the transmission process.

[0040] Specifically, the abutting structure 11 includes a fixed section 111 and an abutting section 112 which are bent in sequence. The fixed section 111 is connected to the sliding structure 21. The abutting section 112 is bent toward the clamping space and provides an abutting top portion, which is used to contact the clamped portion 31. The fixed section 111 is provided to ensure a stable connection with the sliding structure 21. At the same time, the abutting section 112 is bent toward the clamping space so that the abutting top portion located thereon contacts the clamped portion 31. When the sliding structure 21 drives the clamping mechanism 10 to move along the first direction, the abutting structure 11 drives the curved mirror 30 to rotate. The abutting section 112 interferes with the curved mirror 30 to eliminate the gap. The angle between the abutting section 112 and the fixed section 111 changes. When the position of the curved mirror 30 remains unchanged, the angle between the abutting section 112 and the fixed section 111 will not change. The abutting structure 11 can continuously provide the same abutting force, thereby preventing the curved mirror 30 from shaking.

[0041] Optionally, the fixing section 111 is fixed to the sliding structure 21 by screws.

[0042] Specifically, the clamping mechanism 10 further includes a stopper structure 12, a clamping space is formed between the stopper structure 12 and the abutting structure 11, and a support portion 121 is provided on one side of the stopper structure 12 facing the clamping space, and the support portion 121 is used to support the clamped portion 31, so that the abutting structure 11 presses the clamped portion 31 against the support portion 121. The clamped portion 31 is stably connected in the clamping space by the support portion 121 on the stopper structure 12 pressing the clamped portion 31, and when the curved mirror 30 is transmitted to a set tilt angle, the support portion 121 pushes or presses the clamped portion 31, so that the position of the curved mirror 30 is stabilized and it is ensured that it does not shake.

[0043] Specifically, the stop structure 12 and the abutting structure 11 are arranged opposite to each other and at intervals to form a clamping space, and are respectively connected on both sides of the clamped portion 31. During the movement along the first direction, both sides are stably connected to ensure that the clamped portion 31 is clamped.

[0044] Specifically, the stop structure 12 is connected to the sliding structure 21. This arrangement ensures that the relative position between the stop structure 12 and the abutting structure 11 remains unchanged, thereby preventing the relative position change during the transmission process from affecting the rotation control effect of the curved mirror 30 and ensuring accurate transmission gear position.

[0045] Specifically, the supporting portion 121 has an arc-shaped surface that bulges toward the clamping space, and such a configuration avoids causing damage to the clamped portion 31 .

[0046] Specifically, the stop structure 12 further includes a stop base 122, which is connected to the sliding structure 21, and the support portion 121 is arranged on the side of the stop base 122 facing the clamping space. The stop base 122 is stably connected to the sliding structure 21 to ensure that the position of the support portion 121 is stable, so as to continuously provide a pressing and thrusting force.

[0047] Optionally, the stop base 122 is fixed to the sliding structure 21 by screws.

[0048] Specifically, the contact position of the clamped portion 31 and the abutting structure 11 forms a matching position, and the contact position of the clamped portion 31 and the supporting portion 121 forms an abutting position, and the distance between the matching position and the abutting position is less than the thickness of the clamped portion 31. This ensures that the abutting structure 11 and the stop structure 12 always contact the clamped portion 31 during the transmission process, ensuring stable and accurate transmission.

[0049] Specifically, the distance between the abutting position and the edge of the clamped portion 31 is greater than or equal to 3 mm, which effectively prevents the clamped portion 31 from coming out from between the matching position and the abutting position, thereby ensuring a stable connection.

[0050] Specifically, the transmission mechanism 20 further includes a fixed seat 22, a screw rod 23 and a driving member 24. The fixed seat 22 has an installation space. The screw rod 23 is arranged in the installation space and extends along the first direction. The sliding structure 21 is arranged on the screw rod 23. The driving member 24 is connected to the screw rod 23 so that the screw rod 23 rotates to drive the sliding structure 21 to move. By driving the screw rod 23 to rotate by the driving member 24 and the sliding structure 21 to move by the screw rod 23, the clamped portion 31 can be smoothly driven to move, thereby controlling the curved mirror 30 to rotate around the fixed axis 32. The transmission process is smooth, stable and highly accurate.

[0051] Specifically, the transmission mechanism 20 further includes a guide rail 25 extending in the same direction as the screw rod 23. The guide rail 25 passes through the sliding structure 21, and the sliding structure 21 can slide along the guide rail 25. The provision of the guide rail 25 can further improve the stability of the movement of the sliding structure 21.

[0052] Specifically, the guide rail 25 is located on the side of the screw rod 23 away from the curved mirror 30, which is conducive to the screw rod 23 driving the sliding structure 21 more labor-saving. At the same time, the guide rail 25 is located on the side of the sliding structure 21 away from the curved mirror 30 to prevent the sliding structure 21 from shaking in a direction perpendicular to the first direction.

[0053] Specifically, the driving member 24 is located outside the fixing seat 22 to prevent the driving member 24 from hindering the movement of the curved mirror 30 and the sliding structure 21 .

[0054] Specifically, the transmission mechanism 20 further includes a shockproof block 26, which is fixed on the fixing seat 22 and is located on one side of the driving member 24. The center of gravity is tilted toward the driving member 24 to compensate for the eccentric position, reduce resonance, and greatly reduce the noise of the whole machine.

[0055] Specifically, the sliding structure 21 has a receiving groove 211 for the clamped part 31 to extend into on one side of the clamping mechanism 10, and the distance between the clamped part 31 and the bottom of the receiving groove 211 is greater than or equal to 1 mm, so as to prevent the clamped part 31 from touching the bottom of the receiving groove 211 and affecting the rotation of the curved mirror 30, thereby ensuring that the transmission process is stable and accurate.

[0056] The utility model also provides a HUD system, including a curved mirror 30 and the above-mentioned HUD push-pull transmission device. The position of the HUD push-pull transmission device is below the curved mirror 30, that is, the bottom of the HUD system, which reduces the size and volume of the HUD system in the XYZ direction, greatly reduces the difficulty and time of pre-research, and does not burden the surface shape of the curved mirror 30. There is no gap between the HUD push-pull transmission device and the clamped portion 31 of the curved mirror 30 in the X-axis direction (first direction), eliminating the need to eliminate the gap with external force, simplifying the installation process, reducing costs, and enhancing the imaging accuracy and stability of the HUD system itself.

[0057] Optionally, the HUD system further includes a limit switch 40 , and the transmission stops after the curved mirror 30 rotates until it contacts the limit switch 40 .

[0058] By applying the technical solution of the utility model, the following technical effects are achieved:

[0059] 1. By providing a clamping space by setting a clamping mechanism 10, the clamped portion 31 of the curved mirror 30 is pressed against the clamping space, and the gap between the clamped portion 31 and the HUD push-pull transmission device during the transmission process is eliminated in the first direction. There is no need to use external force to eliminate the gap, thereby ensuring accurate gear transmission, optimizing the processing and assembly process, and reducing production costs.

[0060] 2. The sliding structure 21 drives the clamping mechanism 10 to move along the first direction, thereby driving the curved mirror 30 to rotate. The sliding process is smooth without jamming. The transmission is accurate while avoiding excessive pressure on the curved mirror 30 to cause its deformation.

[0061] 3. The position of the HUD push-pull transmission device is below the curved mirror 30, that is, the bottom of the HUD system, which reduces the size and volume of the HUD system in the XYZ direction, greatly reduces the difficulty and time of preliminary research, and does not burden the surface shape of the curved mirror 30.

[0062] Obviously, the embodiments described above are only some embodiments of the utility model, not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0063] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0064] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0065] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A HUD push-pull transmission device, characterized in that: The HUD push-pull transmission device is used to drive the curved mirror (30) to rotate around a fixed axis (32), and the HUD push-pull transmission device comprises: A clamping mechanism (10), the clamping mechanism (10) having a clamping space for clamping the curved mirror (30), the clamped portion (31) of the curved mirror (30) being pressed against in the clamping space; A transmission mechanism (20), the transmission mechanism (20) comprising a sliding structure (21), the sliding structure (21) being connected to the clamping mechanism (10), the sliding structure (21) being capable of driving the clamping mechanism (10) to move along a first direction so as to cause the curved mirror (30) to rotate around the fixed axis (32).

2. The HUD push-pull transmission device according to claim 1, characterized in that: The clamping mechanism (10) comprises a resisting structure (11), and the resisting structure (11) is capable of providing a resisting force toward the clamping space, so that the clamped portion (31) is stably connected in the clamping space.

3. The HUD push-pull transmission device according to claim 2, characterized in that: At least a part of the abutting structure (11) is made of elastic material.

4. The HUD push-pull transmission device according to claim 2, characterized in that: The abutting structure (11) comprises a fixing section (111) and an abutting section (112) which are formed by bending in sequence, wherein the fixing section (111) is connected to the sliding structure (21), and the abutting section (112) is bent toward the clamping space and provides an abutting top portion, wherein the abutting top portion is used to contact the clamped portion (31).

5. The HUD push-pull transmission device according to claim 2, characterized in that: The clamping mechanism (10) further comprises a stop structure (12), wherein the clamping space is formed between the stop structure (12) and the abutting structure (11), and the stop structure (12) is provided with a support portion (121) on one side facing the clamping space, wherein the support portion (121) is used to support the clamped portion (31) so that the abutting structure (11) presses the clamped portion (31) against the support portion (121).

6. The HUD push-pull transmission device according to claim 5, characterized in that: The stop structure (12) and the abutting structure (11) are arranged opposite to each other and at intervals; and / or The stop structure (12) is connected to the sliding structure (21).

7. The HUD push-pull transmission device according to claim 5, characterized in that: The supporting portion (121) has an arc-shaped surface that bulges toward the clamping space.

8. The HUD push-pull transmission device according to claim 5, characterized in that: The stop structure (12) further comprises a stop base (122), wherein the stop base (122) is connected to the sliding structure (21), and the support portion (121) is arranged on a side of the stop base (122) facing the clamping space.

9. The HUD push-pull transmission device according to claim 5, characterized in that: The contact position between the clamped portion (31) and the abutting structure (11) forms a matching position, and the contact position between the clamped portion (31) and the supporting portion (121) forms an abutting position, and the distance between the matching position and the abutting position is less than the thickness of the clamped portion (31).

10. The HUD push-pull transmission device according to claim 9, characterized in that: The distance between the abutment position and the edge of the clamped portion (31) is greater than or equal to 3 mm.

11. The HUD push-pull transmission device according to any one of claims 1 to 10, characterized in that: The transmission mechanism (20) further comprises: A fixing seat (22), wherein the fixing seat (22) has an installation space; A screw rod (23), the screw rod (23) being arranged in the installation space and extending along a first direction, and the sliding structure (21) being arranged on the screw rod (23); A driving member (24), wherein the driving member (24) is drivingly connected to the screw rod (23) so that the screw rod (23) rotates to drive the sliding structure (21) to move.

12. The HUD push-pull transmission device according to claim 11, characterized in that: The transmission mechanism (20) further comprises a guide rail (25) extending in the same direction as the lead screw (23); the guide rail (25) passes through the sliding structure (21); and the sliding structure (21) is capable of sliding along the guide rail (25).

13. The HUD push-pull transmission device according to claim 12, characterized in that: The guide rail (25) is located on a side of the screw rod (23) away from the curved mirror (30); and / or The driving member (24) is located outside the fixing seat (22).

14. The HUD push-pull transmission device according to claim 11, characterized in that: The transmission mechanism (20) further comprises a shockproof block (26), wherein the shockproof block (26) is fixed on the fixing seat (22), and the shockproof block (26) is located on one side of the driving member (24).

15. The HUD push-pull transmission device according to any one of claims 1 to 10, characterized in that: The sliding structure (21) has a receiving groove (211) on one side facing the clamping mechanism (10) for the clamped portion (31) to extend into, and the distance between the clamped portion (31) and the bottom of the receiving groove (211) is greater than or equal to 1 mm.

16. A HUD system, characterized in that: The invention comprises a curved mirror (30) and the HUD push-pull transmission device according to any one of claims 1 to 15.

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