A HUD mirror pressing assembly and a HUD mirror

Abstract

This utility model discloses a HUD rotating mirror clamping assembly, including: a spring and a spring bracket; wherein, the spring bracket is provided with a slot, a spherical boss, and a cylindrical boss; the spring bracket has connecting holes at both ends; the spring has spherical grooves and cylindrical grooves at both ends that mate with the spherical boss and the cylindrical boss; the spring can be inserted into the slot of the spring bracket and simultaneously engaged with the spherical boss and the cylindrical boss; the spring can rotate about the central axis of the cylindrical surface of the cylindrical boss. This utility model's spring is engaged with the spring bracket through the slot, spherical boss, and cylindrical boss, eliminating the need for screws to fix the ends of the spring, thus eliminating the tensile force and torque caused by screws. The rotating mirror shaft is only subjected to the pure elastic force of the spring, avoiding excessive clamping of the shaft and fundamentally solving the problems of uneven gear shifting and screen tilting.

Description

Technical Field

[0001] This utility model relates to the field of HUD (Head-Up Display) rotating mirror installation technology, and in particular to a HUD rotating mirror clamping assembly and a HUD rotating mirror. Background Technology

[0002] During the assembly of the HUD rotating mirror, the tightness and stability of the mirror directly affect the display effect, such as the uniformity of the HUD's settings and the tilt of the screen. The existing rotating mirror clamping structure has the following technical defects:

[0003] Defects of traditional spring clip fixing structures: In traditional solutions, spring clips are directly fixed to one or both ends with screws. On the one hand, this is greatly affected by the flatness of the screw post, resulting in poor assembly consistency. On the other hand, when the screw is fixed to one side, it will generate torque on the spring clip. If screws are used to fix both ends, the two ends of the spring clip will be pulled to the limit. Under the same amount of deformation, the spring clip will apply several times the required reaction force to the rotating shaft, causing the rotating shaft to be over-compressed, which will eventually lead to problems such as uneven rotation of the rotating shaft and tilting of the screen.

[0004] Defects of the ball head support structure: Some solutions use ball head support for the rotating mirror. Although screw fastening can be completed when the rotating shaft is tilted, all four sides of the ball head support are inclined surfaces. The machining accuracy of these inclined surfaces is extremely high, and the measurement of the inclined surfaces is difficult in actual production, resulting in high machining and inspection costs. At the same time, this structure still does not avoid the torque and tensile force problems caused by the screw fixing spring, and there is still a risk of unstable tightness of the rotating mirror. Utility Model Content

[0005] To address the shortcomings of the aforementioned technologies, the purpose of this utility model is to provide a HUD rotating mirror clamping assembly. By optimizing the assembly structure of the spring and the bracket, the torque and tensile force of the screw on the spring are eliminated, the rotation axis tilt is adapted to reduce the processing difficulty, and the rotation mirror is kept stable in tightness.

[0006] The HUD rotating mirror clamping assembly proposed in this utility model includes: a spring and a spring bracket; wherein, the spring bracket is provided with a slot, a spherical boss and a cylindrical boss; the spring bracket has connecting holes at both ends; the spring is flat in its natural state, and becomes curved after being installed on the base / spring bracket; the spring has spherical grooves and cylindrical grooves at both ends that cooperate with the spherical boss and the cylindrical boss; the spring can be inserted into the slot of the spring bracket, and simultaneously engage with the spherical boss and the cylindrical boss; the spring can rotate about the central axis of the cylindrical surface of the cylindrical boss.

[0007] In this invention, the spring clip bracket is provided with a bracket groove; the cylindrical boss and the ball boss are respectively provided on both sides of the slot; the slot, the ball boss, and the cylindrical boss are provided inside the bracket groove. The cylindrical boss is provided on the side wall of the bracket groove.

[0008] In this utility model, the spring support is provided with a limiting post, and the limiting post is provided with a connecting hole.

[0009] Preferably, when the spring piece rotates around the central axis of the cylindrical surface of the cylindrical boss, the rotation angle range is within ±15° or above ±15°.

[0010] In this invention, when the connecting hole is used for connection, the connector only acts on the spring support, does not contact the spring, and does not apply pressure to the spring.

[0011] Preferably, the spring can meet the 3G random vibration requirements with a deformation of 0.7mm. When the deformation of the spring exceeds 0.7mm, the spring support can hold the spring in place to prevent the spring from failing.

[0012] Based on the above, this utility model also proposes a HUD rotating mirror, including: the HUD rotating mirror clamping assembly, the rotating mirror, and the rotating mirror bracket as described in this utility model; wherein, the bottom shell / rotating mirror bracket is provided with a cylindrical groove, and the rotating shaft of the rotating mirror can be inserted into the cylindrical groove; the clamping assembly can be placed above the rotating shaft of the rotating mirror, and the large surface of the spring piece can be in contact with the upper surface of the rotating shaft of the rotating mirror; the clamping assembly is fixed to the bottom shell / rotating mirror bracket through a connecting hole via a connector.

[0013] Preferably, the connecting hole is a threaded hole, and the thread direction is consistent with the upper shell of the HUD.

[0014] In this utility model, the limiting post is a boss, which serves to limit the assembly of the HUD rotating mirror clamping component and the base shell / rotating mirror bracket, and is also fixed to the base shell / rotating mirror bracket with screws.

[0015] In this invention, each of the two rotating shafts of the rotating mirror is provided with a set of clamping components and a cylindrical slot of the bottom shell / rotating mirror bracket. The two sets of clamping components have the same structure and are assembled symmetrically.

[0016] The HUD rotating mirror clamping assembly disclosed in this utility model has the following beneficial effects:

[0017] This utility model's spring clip is engaged with the spring clip bracket via a slot, a ball boss, and a cylindrical boss, eliminating the need for screws to fix both ends of the spring clip. This eliminates the tensile force and torque caused by screws, and the rotating shaft of the rotating mirror is only subjected to the pure elastic force of the spring clip, preventing the rotating shaft from being over-compressed and fundamentally solving the problems of uneven gear shifts and screen tilt.

[0018] This invention eliminates the need for high-precision inclined surface machining with a ball-head support structure. The spring can be rotated to adapt to the tilt of the shaft, which greatly reduces the precision requirements and measurement difficulty of the parts, and reduces production and testing costs.

[0019] The screwing direction of the clamping assembly of this utility model is consistent with that of the HUD upper shell, eliminating the need to adjust the screw tightening direction, reducing the workload of screwing and improving assembly efficiency.

[0020] This utility model has a spring clip with a deformation of 0.7mm to adapt to 3G random vibration, and the spring clip bracket can prevent failure when the deformation exceeds the limit, ensuring that the HUD remains stable under complex working conditions.

[0021] The pure elastic force action of the spring and the rotating shaft in this invention increases the interference redundancy between the spring and the rotating shaft, further ensuring the long-term stability of the tightness of the rotating mirror. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the overall assembly structure of the HUD rotating mirror of this utility model.

[0024] Figure 2 , Figure 3 , Figure 4 This is a schematic diagram of the structure of the HUD rotating mirror clamping assembly of this utility model.

[0025] Figure 5 This is a schematic diagram of the installation structure of the left-side component of the transfer mirror in this utility model. Detailed Implementation

[0026] The utility model will be further described in detail below with reference to the specific embodiments and accompanying drawings. Except for the contents specifically mentioned below, the processes, conditions, and experimental methods for implementing this utility model are all common knowledge and general knowledge in the field, and this utility model has no particular limitations.

[0027] Figures 1-3 In the middle, 1-spring piece; 2-spring piece bracket; 21-slot; 22-spherical boss; 23-cylindrical boss; 24-connecting hole; 25-limiting post; 31-spherical groove; 32-cylindrical groove; 3-rotating mirror; 4-bottom shell / rotating mirror bracket; 41-cylindrical slot.

[0028] The HUD rotating mirror clamping assembly disclosed in this utility model includes: a spring piece 1 and a spring piece bracket 2, which together form a clamping assembly. This clamping assembly cooperates with the rotating mirror 3 and the base shell / rotating mirror bracket 4 to achieve stable clamping of the rotating mirror 3; wherein:

[0029] The spring 1 is flat in its natural state, but becomes curved after being installed on the base / spring bracket. The spring bracket 2 is provided with a slot 21, a ball boss 22, and a cylindrical boss 23. After bending, the spring 1 is inserted into the slot 21 of the spring bracket 2. At the same time, the spring 1 also engages with the ball boss 22 and the cylindrical boss 23 of the spring bracket 2 to complete the assembly of the spring assembly. After assembly, the spring 1 can rotate with the cylindrical surface of the cylindrical boss 23 as the center of rotation, and can achieve a rotation of ±15° and larger angles to adapt to different tilt angles of the large-size lens axis.

[0030] The bottom shell / rotating mirror bracket 4 is provided with a cylindrical slot 41 that is adapted to the rotating shaft of the rotating mirror 3. During assembly, the rotating shaft of the rotating mirror 3 is first inserted into the cylindrical slot 41 of the bottom shell / rotating mirror bracket 4, and then the clamping component is placed above the rotating shaft of the rotating mirror 3 to ensure that the large surface of the spring piece 1 is completely in contact with the upper surface of the rotating shaft of the rotating mirror 3. Then, screws are driven in the same direction as the upper shell of the HUD to fix the clamping component on the bottom shell / rotating mirror bracket 4. The right side component of the rotating mirror 3 is assembled in the same way.

[0031] With a deformation of 0.7mm, the spring piece 1 can meet the requirements of 3G random vibration. When the vibration intensity causes the deformation of the spring piece 1 to exceed 0.7mm, the spring piece support 2 will contact the spring piece 1 and hold it in place to prevent the spring piece 1 from failing due to excessive deformation.

[0032] Example 1

[0033] This embodiment provides a specific assembly and usage process for a HUD rotating mirror clamping assembly, including:

[0034] Prepare the rotating mirror 3, the base shell / rotating mirror bracket 4, and the clamping assembly to be assembled. Insert the edge of the spring piece 1 into the slot 21 of the spring piece bracket 2, and simultaneously adjust the position of the spring piece 1 so that its inner surface is tightly engaged with the outer surface of the ball boss 22 and the outer surface of the cylindrical boss 23 of the spring piece bracket 2, completing the pre-assembly of the clamping assembly. The ball boss 22, the cylindrical boss 23, and the slot 21 limit the spring piece 1, preventing the clamping assembly from falling off during installation and transportation; at this time, the spring piece 1 can freely rotate around the central axis of the cylindrical surface of the cylindrical boss 23, with a rotation angle range of ±15° or more.

[0035] Align the left rotating shaft of the rotating mirror 3 with the left cylindrical slot 41 of the bottom shell / rotating mirror bracket 4, and insert it from top to bottom along the opening direction of the slot so that the rotating shaft of the rotating mirror 3 is completely inserted into the slot, and the rotating mirror 3 can rotate freely around the rotating shaft.

[0036] Place the assembled clamping assembly above the left rotating shaft of the rotating mirror 3. Align the spring plate bracket limiting post 25 with the bottom shell / rotating mirror bracket limiting groove and tighten it with screws. During the process of fixing the clamping assembly, the spring plate 1 automatically rotates around the central axis of the cylindrical surface of the cylindrical boss 23 according to the tilt angle of the rotating mirror shaft. Finally, the spring plate 1 is in contact with the upper part of the rotating mirror 3.

[0037] The right-side components are symmetrically assembled to complete the overall clamping assembly of the rotating mirror 3. After assembly, the rotational flexibility of the spring 1 is checked to ensure it can accommodate a ±15° tilt of the rotating shaft.

[0038] In this embodiment, there is no tension or torque from screws on both sides of the spring 1, and the rotating shaft of the rotating mirror 3 is only subjected to the pure elastic force of the spring 1. The interference redundancy between the spring 1 and the rotating shaft is increased, and the tightness of the rotating mirror 3 is stable. At the same time, there is no need to process high-precision inclined surfaces, which reduces the production difficulty. The screw direction is consistent with the upper shell, which improves the assembly efficiency and completely solves the problems of unstable tightness of the rotating mirror, uneven gear position, and screen tilt in the traditional structure.

[0039] Unless otherwise defined, all technical and scientific terms used in this invention 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 be limiting of the invention.

[0040] As used in this invention, the term "comprising" is an open-ended expression, meaning it includes the contents specified in this invention, but does not exclude other aspects.

[0041] As used in this invention, the term "and / or" includes any one and all combinations of one or more of the related listed items.

[0042] The scope of protection of this utility model is not limited to the above embodiments. Any variations and advantages that can be conceived by those skilled in the art without departing from the spirit and scope of the utility model are included in this utility model and are protected by the appended claims.

Claims

1. A HUD rotating mirror clamping assembly, characterized in that, include: Spring (1) and spring support (2); wherein, The spring clip bracket (2) is provided with a slot (21), a ball boss (22) and a cylindrical boss (23). The spring clip bracket (2) has connection holes (24) at both ends; The spring piece (1) has a ball groove (31) and a cylindrical groove (32) at both ends that cooperate with the ball boss (22) and the cylindrical boss (23). The spring piece (1) can be inserted into the slot (21) of the spring piece bracket (2) and simultaneously engage with the ball boss (22) and the cylindrical boss (23); The spring (1) can rotate around the central axis of the cylindrical surface of the cylindrical boss (23).

2. The HUD rotating mirror clamping assembly as described in claim 1, characterized in that, The spring support (2) is provided with a limiting post (25), and the limiting post (25) is provided with a connecting hole (24); the slot (21), the ball boss (22) and the cylindrical boss (23) are provided in the spring support (2).

3. The HUD rotating mirror clamping assembly as described in claim 2, characterized in that, The cylindrical boss (23) and the spherical boss (22) are respectively located on both sides of the slot (21).

4. The HUD rotating mirror clamping assembly as described in claim 2, characterized in that, When the connecting hole (24) is used for connection, the connector only acts on the spring support (2), does not contact the spring (1), and does not apply pressure to the spring (1).

5. The HUD rotating mirror clamping assembly as described in claim 1, characterized in that, When the spring (1) rotates around the central axis of the cylindrical surface of the cylindrical boss (23), the rotation angle range is within ±15° or above ±15°.

6. The HUD rotating mirror clamping assembly as described in claim 1, characterized in that, The spring can meet the 3G random vibration requirements with a deformation of 0.7mm. When the deformation of the spring exceeds 0.7mm, the spring bracket (2) can hold the spring (1) in place to prevent the spring (1) from failing.

7. A HUD rotating mirror, characterized in that, include: The HUD rotating mirror clamping assembly, rotating mirror (3), and base shell / rotating mirror bracket (4) as described in any one of claims 1-6; wherein, The bottom shell / rotating mirror bracket (4) is provided with a cylindrical surface slot (41), and the rotating shaft of the rotating mirror (3) can be inserted into the cylindrical surface slot (41); The clamping assembly can be placed above the rotating shaft of the rotating mirror (3), and the large surface of the spring piece (1) can be in contact with the upper surface of the rotating shaft of the rotating mirror (3); The clamping assembly is fixed to the bottom shell / rotating mirror bracket (4) by means of a connector passing through the connecting hole (24).

8. The HUD rotating mirror as described in claim 7, characterized in that, The connecting hole (24) is a screw hole, and the thread direction is consistent with the upper shell of the HUD.

9. The HUD rotating mirror as described in claim 7, characterized in that, Both sides of the rotating mirror (3) are provided with a set of clamping components and a cylindrical slot of the bottom shell / rotating mirror bracket (4). The two sets of clamping components have the same structure and are assembled symmetrically.

10. The HUD rotating mirror as described in claim 7, characterized in that, The limiting post (25) is a boss that serves to limit the assembly of the HUD rotating mirror clamping assembly and the bottom shell / rotating mirror bracket (4), and is also fixed to the bottom shell / rotating mirror bracket (4) with screws.

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