Connecting base for reflector support, reflector assembly and head-up display device

Abstract

The embodiment of the invention provides a connecting base for a reflector support, a reflector assembly and a head-up display device, the reflector support is used for supporting a reflector and comprises a rotating shaft, the reflector support drives the reflector to rotate through rotation of the rotating shaft, and the connecting base comprises a body; the first clamping part and the second clamping part are oppositely arranged on the body; wherein the first clamping part and the second clamping part are arranged to be capable of being extruded by the rotating shaft inserted between the first clamping part and the second clamping part to be elastically deformed, and the rotating shaft is kept between the first clamping part and the second clamping part through elastic force.

Description

Technical Field

[0001] The disclosed embodiments relate to the field of head-up display technology, and in particular to a connecting seat for a reflector bracket, a reflector assembly, and a head-up display device. Background Art

[0002] Head-Up Display (HUD) is an advanced in-vehicle navigation and information display device that can intuitively project map navigation, driving assistance information, etc. onto the windshield or dedicated display screen directly in front of the driver. The application of HUD effectively improves the driver's perception of the driving environment, thereby enhancing driving safety and convenience. At present, HUD has been widely used in the field of smart cars and has become a standard or optional equipment for many models.

[0003] The imaging unit of the HUD is the core component of the system, and its function is to accurately project image information onto the display screen or windshield. The stability of the imaging unit directly affects the clarity and position accuracy of the projected image. In the prior art, the support method of the imaging unit usually adopts a fixed structure with a shaft-hole fit. By setting a shaft-hole fit between the imaging unit and the supporting device, the basic fixing requirements can be met to a certain extent. However, this structure is difficult to effectively buffer external vibrations during dynamic use, and its ability to protect and maintain the position of the imaging unit is relatively limited.

[0004] The existing shaft-hole support method is difficult to fully eliminate the impact of vibration on the stability of the imaging unit when dealing with dynamic usage scenarios under complex road conditions, which may lead to poor imaging effects. In addition, the adjustment range of this fixing method is limited, and the installation and maintenance process may face high operational difficulties, reducing production efficiency and ease of use. Therefore, the existing technology needs to optimize the imaging quality and system reliability of the HUD. Summary of the invention

[0005] In view of this, the embodiments of the present disclosure are intended to provide a connection base for a reflector bracket, a reflector assembly, and a head-up display device. The elastic clamping method of the connection base can effectively eliminate the physical gap problem between the connection base and the connector, thereby solving the problems of loose connection, vibration influence, and wear in the existing connection method.

[0006] The technical solution of the embodiment of the present disclosure is implemented as follows: In a first aspect, an embodiment of the present disclosure provides a connection seat for a reflector bracket, wherein the reflector bracket is used to support the reflector and includes a rotating shaft, and the reflector bracket drives the reflector to rotate by rotating the rotating shaft, and the connection seat includes: ontology; A first clamping portion and a second clamping portion arranged on the body opposite to each other; The first clamping portion and the second clamping portion are configured to be elastically deformed by being squeezed by the rotating shaft inserted therebetween, and the rotating shaft is held between the first clamping portion and the second clamping portion by elastic force.

[0007] In some optional examples, the first clamping portion and the second clamping portion are arranged so that the difference between the elastic force of the first clamping portion and the elastic force of the second clamping portion is equal to the difference between the forces of the motor assembly for driving the reflector bracket to rotate and the reflector bracket.

[0008] In some optional examples, the elastic force of the first clamping portion is greater than the impact force applied by the rotating shaft to the first clamping portion, and the elastic force of the second clamping portion is greater than the impact force applied by the rotating shaft to the second clamping portion, wherein the impact force applied to the first clamping portion and the impact force applied to the second clamping portion are generated on the rotating shaft by the vibration of the motor assembly.

[0009] In some optional examples, the first clamping portion and the second clamping portion are respectively in the shape of a plate with one end connected to the body and the other end suspended.

[0010] In some optional examples, the body is U-shaped and includes a first branch and a second branch opposite to each other, wherein the first clamping portion and the second clamping portion are respectively connected to opposite sides of the first branch and the second branch.

[0011] In some optional examples, the suspended end of the first clamping portion extends toward the second branch in a direction forming a first angle with the first branch; The suspended end of the second clamping portion extends toward the first branch portion in a direction forming a second angle with the second branch portion.

[0012] In some optional examples, the first clamping portion is located above the second clamping portion in the vertical direction, and when the first clamping portion and the second clamping portion are not elastically deformed, the first angle is smaller than the second angle.

[0013] In some optional examples, at least one of the first clamping portion and the second clamping portion is formed with a limiting portion for limiting the rotating shaft from leaving the connecting seat.

[0014] In some optional examples, the limiting portion is formed as a recessed portion that matches the shape of a portion of the rotating shaft.

[0015] In some optional examples, the connecting socket is integrally formed.

[0016] In a second aspect, an embodiment of the present disclosure provides a reflector assembly, the reflector assembly comprising: A reflector bracket for supporting the reflector, wherein the reflector bracket comprises a rotating shaft, and the reflector bracket drives the reflector to rotate by rotating the rotating shaft; A connection socket for a reflector support according to a first aspect.

[0017] In some optional examples, the rotating shaft is formed into a spherical shape.

[0018] In a third aspect, an embodiment of the present disclosure provides a head-up display device, comprising a reflector assembly according to the second aspect.

[0019] The disclosed embodiments provide a connection seat for a reflector bracket, a reflector assembly, and a head-up display device. The connection seat for the reflector bracket achieves tight clamping of the rotating shaft through the elastic deformation and recovery characteristics of the first clamping part and the second clamping part. Compared with the traditional fixing method, the connection seat effectively eliminates the gap problem between the connection seat and the rotating shaft, prevents the rotating shaft from offsetting or shaking in a dynamic environment, thereby significantly improving the imaging quality and stability of the HUD device, and enhancing the reliability of the connection structure. In addition, the elastic characteristics of the first clamping part and the second clamping part also have the ability to absorb shock when the rotating shaft is subjected to external force or vibration. By absorbing the shock of vibration, the connection seat effectively reduces the direct friction between the rotating shaft and the connection seat, which not only extends the service life of the rotating shaft and the connection seat, but also reduces the risk of wear caused by the impact of the two. At the same time, the buffering effect of the elastic clamping part also reduces the noise caused by vibration, thereby improving the silent performance of the HUD device during operation and improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram of a portion of a HUD device provided for an embodiment of the present disclosure.

[0021] Figure 2 for Figure 1 A schematic diagram of a portion of a HUD device.

[0022] Figure 3 A schematic diagram of a connecting socket for a reflector bracket, a reflector assembly, and a portion of a head-up display device provided in an embodiment of the present disclosure. Figure 4 A schematic diagram of a portion of a reflector assembly provided for an embodiment of the present disclosure.

[0023] Figure 5 A three-dimensional diagram of a connection socket provided in an embodiment of the present disclosure.

[0024] Figure 6 A front view of the connecting socket provided in an embodiment of the present disclosure.

[0025] Figure 7 A top view of the connection socket provided in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0026] The present disclosure is described in detail below with reference to the accompanying drawings by means of exemplary embodiments. It should be noted that the following detailed description of the present disclosure is only for illustrative purposes and is by no means limiting of the present disclosure.

[0027] It should be noted that, for the sake of clarity, not all features of a specific implementation are described and illustrated in the specification and drawings. Furthermore, in order to avoid unnecessary details that obscure the technical solution that the present disclosure focuses on, only the device structure closely related to the technical solution of the present disclosure is described and illustrated in the specification and drawings, while other details that are not closely related to the technical content of the present disclosure and are known to those skilled in the art are omitted.

[0028] The angle adjustment of the reflector in the HUD device is crucial to ensure the clarity and accuracy of the image and the adaptability of the driver's perspective. In order to meet the needs of different drivers and maintain image stability during dynamic driving of the vehicle, the angle adjustment of the reflector is usually achieved by combining mechanical structure and electronic control system.

[0029] See also Figure 1 , the HUD device 100 provided by some embodiments of the present disclosure may include a reflector 101, a reflector bracket 102, a motor assembly 103 and a worm gear mechanism 104. The reflector 101 may be connected to other components of the HUD device 100 through the reflector bracket 102. The reflector bracket 102 can not only provide support for the reflector 101, but also allow the reflector 101 to rotate around a predetermined axis for angle adjustment. The worm gear mechanism 104 can be directly connected to the motor assembly 103. The motor assembly 103 can drive and control the rotation of the reflector bracket 102 and the reflector 101 via the worm gear mechanism 104. The motor assembly 103 may be, for example, a stepper motor or a servo motor. As an alternative example, a gear mechanism may also be used instead of the worm gear mechanism to transmit motion to achieve the rotation of the reflector bracket 102 and the reflector 101. The advantage of the worm gear mechanism 104 is that it can not only provide a stable transmission ratio, but also has a self-locking feature, which can lock the angle of the reflector after adjustment to prevent the angle from returning or shifting due to vehicle vibration.

[0030] In order to allow the angle adjustment of the reflector 101, the reflector bracket 102 is supported in a rotatable manner. Figure 2As shown, the reflector bracket 102 has a rotating shaft 102A extending from its side edge. The rotating shaft 102A can be inserted into the mounting hole 102B to form a rotation support for the reflector bracket 102. The mounting hole 102B can be formed in a component that provides support for the reflector 101 and the reflector bracket 102. In order to facilitate assembly and use, the rotating shaft 102A and the mounting hole 102B adopt a clearance fit. This arrangement allows the rotating shaft 102A to be easily inserted into the mounting hole 102B, while having a certain degree of rotational freedom. However, due to the existence of the gap, a certain space is always left between the outer peripheral surface of the rotating shaft 102A and the inner peripheral surface of the mounting hole 102B.

[0031] In actual use, the HUD device 100 has some problems, especially when adjusting the angle of the reflector 101 to optimize the imaging effect. For example, when adjusting the angle of the reflector 101, image jitter and high noise are likely to occur. Moreover, after a period of use, the rotating shaft 102A and the mounting hole 102B are worn to a certain extent, shortening the service life.

[0032] In view of the above situation, the inventors have found through research and analysis that the shaft-hole fit at the reflector bracket 102 is the main cause of the above problems. Specifically, when the motor assembly 103 starts to work, the vibration generated by the motor assembly 103 will be transmitted to the reflector bracket 102 via the worm gear mechanism 104, and thus also transmitted to the rotating shaft 102A. Due to the gap between the rotating shaft 102A and the mounting hole 102B, the vibration will cause the rotating shaft 102A to shake in the mounting hole 102B. As the shaking amplitude increases, the outer peripheral surface of the rotating shaft 102A will repeatedly collide with the inner wall of the mounting hole 102B.

[0033] This collision will not only aggravate the damage to the rotating shaft 102A and the mounting hole 102B, affecting the structural integrity of both, but also generate noise. In addition, during the collision, the reaction force applied by the mounting hole 102B to the rotating shaft 102A will be transmitted to the reflector bracket 102, thereby further acting on the reflector 101. This reaction force may cause the angles of the reflector bracket 102 and the reflector 101 to shift or shake, ultimately affecting the image stability and accuracy of the HUD device projection. In particular, due to the existence of assembly tolerances, the rotating shaft 102A may be inserted into the mounting hole 102B in a concentric manner. This means that there is a gap between the rotating shaft 102A and the inner circumferential wall of the mounting hole 102B in its entire circumferential direction. This makes the reflector 101 more susceptible to vibration, which in turn causes image jitter.

[0034] In view of this, the embodiments of the present disclosure provide a connection base for a reflector bracket, a reflector assembly, and a head-up display device. The elastic clamping method of the connection base can effectively eliminate the physical gap problem between the connection base and the connector, thereby solving the problems of loose connection, vibration influence, and wear in the existing connection method.

[0035] The following describes a connection base for a reflector bracket, a reflector assembly, and a head-up display device provided in the embodiments of the present disclosure in conjunction with specific embodiments.

[0036] See also Figure 3 Some embodiments of the present disclosure provide a connection base 1 for a reflector bracket 102. The reflector bracket 102 can be used to support the reflector 101 and includes a rotating shaft 102A. The reflector bracket 102 drives the reflector 101 to rotate by rotating the rotating shaft 102A.

[0037] The connection base 1 may include a body 11, and a first clamping portion 12 and a second clamping portion 13 disposed relatively on the body 11. The first clamping portion 12 and the second clamping portion 13 are configured to be elastically deformed by being squeezed by a rotating shaft 102A inserted therebetween, and the rotating shaft 102A is held between the first clamping portion 12 and the second clamping portion 13 by elastic force.

[0038] The main body 11 , as the basic structure of the connection base 1 , can provide reliable support for the first clamping portion 12 and the second clamping portion 13 , thereby ensuring the structural stability of the entire connection base 1 and the realization of the clamping function.

[0039] The first clamping portion 12 and the second clamping portion 13 are arranged on the connecting base 1 in a manner opposite to each other, and a clamping area is formed therebetween for accommodating the rotating shaft 102A and clamping and fixing it.

[0040] When the rotating shaft 102A has not yet been inserted into the connecting seat 1, the first clamping part 12 and the second clamping part 13 can be in an initial state without being stretched or compressed. When the rotating shaft 102A is inserted into the clamping area, its outer peripheral surface will contact the two opposite surfaces of the first clamping part 12 and the second clamping part 13 at the same time, and apply an extrusion force to the first clamping part 12 and the second clamping part 13, so that they are elastically deformed in a direction away from each other. In this process, the first clamping part 12 and the second clamping part 13 have elastic force due to the elastic properties of the material, and therefore always tend to return to the initial state. The direction of the elastic force is opposite, acting on both sides of the rotating shaft 102A respectively, thereby providing a uniform clamping force, firmly keeping the rotating shaft 102A in the clamping area, and effectively preventing it from loosening or shifting in a dynamic environment.

[0041] The elastic properties of the first clamping portion 12 and the second clamping portion 13 provide good dynamic stability for the connecting base 1. In the case of external vibration, the clamping portion can absorb vibration or impact energy, reduce the direct impact of external force on the rotating shaft 102A, and significantly improve the angular stability of the reflector bracket and the reflector, thereby ensuring the clarity and accuracy of the HUD projection image.

[0042] In addition, the first clamping portion 12 and the second clamping portion 13 clamp the rotating shaft 102A through flexible contact, effectively avoiding the impact wear problem caused by the gap in the traditional rigid matching mode, and reducing the noise generated during the vibration transmission process. This low-noise design significantly improves the quietness of the HUD device and provides users with a more comfortable use experience.

[0043] The deformation capacity of the first clamping portion 12 and the second clamping portion 13 and the distance therebetween can be set according to the size of the rotating shaft 102A, so that the connecting seat 1 has high adaptability and convenient assembly. The first clamping portion 12 and the second clamping portion 13 can adapt to the radial size of the rotating shaft within a certain range. Moreover, the installation of the rotating shaft 102A can be completed by simply inserting it into the clamping area, without the need for additional adjustment or complicated operations.

[0044] In addition, the flexible first clamping portion 12 and the second clamping portion 13 can effectively relieve the contact pressure between the rotating shaft 102A and each clamping portion, reducing the damage to the material caused by hard collision. Furthermore, the elastic force of the first clamping portion 12 and the second clamping portion 13 has good long-term stability and is not prone to failure due to frequent use, further enhancing the reliability and durability of the connecting seat 1.

[0045] The embodiment of the present disclosure provides a connection base 1 for a reflector bracket. The connection base 1 achieves a tight clamping of the rotating shaft 102A through the elastic deformation and recovery characteristics of the first clamping portion 12 and the second clamping portion 13. Compared with the traditional fixing method, the connection base 1 effectively eliminates the gap problem between the connection base 1 and the rotating shaft 102A, prevents the rotating shaft 102A from offsetting or shaking in a dynamic environment, thereby significantly improving the imaging quality and stability of the HUD device, and enhancing the reliability of the connection structure. In addition, the elastic characteristics of the first clamping portion 12 and the second clamping portion 13 also have the ability to absorb shock when the rotating shaft 102A is subjected to external force or vibration. By absorbing the shock of vibration, the connection base 1 effectively reduces the direct friction between the rotating shaft 102A and the connection base 1, which not only prolongs the service life of the rotating shaft 102A and the connection base 1, but also reduces the risk of wear caused by the impact of the two. At the same time, the buffering effect of the elastic clamping portion also reduces the noise caused by vibration, thereby improving the silent performance of the HUD device during operation and improving the user experience.

[0046] In some embodiments of the present disclosure, the first clamping portion 12 and the second clamping portion 13 are arranged so that the difference between the elastic force of the first clamping portion 12 and the elastic force of the second clamping portion 13 is equal to the difference in force between the motor assembly 103 used to drive the reflector bracket 102 to rotate and the reflector bracket 102.

[0047] See also Figure 4 The motor assembly 103 may include a motor 103A, a motor bracket 103B and a push piece 103C. The power generated by the motor 103A may be transmitted to the reflector bracket 102 via the worm gear mechanism 104. The worm 104A of the worm gear mechanism 104 may be directly connected to the power output shaft of the motor 103A, and the worm wheel 104B of the worm gear mechanism 104 is fixed to the reflector bracket 102, so that when the worm 104A is driven by the motor 103A to rotate around the axis to drive the worm wheel 104B matched therewith to rotate, the reflector bracket 102 may rotate around the rotating shaft 102A driven by the worm wheel 104B, thereby realizing the angle adjustment of the reflector 101 and the reflector bracket 102.

[0048] In order to ensure that the worm 104A is fully meshed with the worm wheel 104B, the motor 103A is rotatably supported by the motor bracket 103B, and a push piece 103C is provided below the worm 104A to push the worm 104A toward the worm wheel 104B. The push piece 103C may be made of an elastic material, and may be in the form of a spring, for example, wherein one end of the push piece 103C may be fixed to other components as a support point of the push piece 103C, and the other end may act on the bottom of the worm 104A. When the motor 103A rotates relative to the motor bracket 103B so that the worm 104A connected to the motor 103A is pressed against the push piece 103C, the push piece 103C is elastically deformed and continuously pushes the worm 104A upward due to its own elastic force, so as to force the worm 104A to mesh with the worm wheel 104B located above it. Therefore, the pusher 103C also bears a part of the gravity of the motor 103A.

[0049] The meshing of the worm 104A and the worm wheel 104B causes the weight of the reflector 101 and the reflector bracket 102 to at least partially act on the worm gear mechanism 104 and finally act on the push piece 103C. Therefore, the push piece 103C can offset at least a part of the weight of the reflector 101 and the reflector bracket 102.

[0050] Since the meshing position of the worm 104A and the worm wheel 104B will change when adjusting the angle of the reflector 101, the distribution method of the weight of the reflector 101 and the reflector bracket 102 between the connection base 1 and the motor assembly 103 will also change. As an example, when the worm 104A and the worm wheel 104B are in a specific meshing position, the weight of the reflector 101 and the reflector bracket 102 will be completely borne by the push piece 103C of the motor assembly 103, and the connection base 1 will no longer bear the weight of the reflector 101 and the reflector bracket 102. In addition to gravity, when the motor 103A starts to operate, the friction force generated by the motor 103A will also partially act on the push piece 103C.

[0051] Based on the above, it can be determined that the elastic forces of the first clamping portion 12 and the second clamping portion 13 of the connecting seat 1 should be different. Since the vertical arrangement of the first clamping portion 12 and the second clamping portion 13 and the external forces they bear are different, in order to ensure that the two can apply sufficient clamping force to the rotating shaft 102A under any conditions and firmly hold it in the clamping area, it is necessary to design the elastic forces of the two differently. The difference between the elastic force of the first clamping portion 12 and the elastic force of the second clamping portion 13 can be equal to the difference F between the forces of the motor assembly 103 and the reflector bracket 102. Δ And it can be obtained by the following formula:

[0052] Where W is the elastic force of the pusher; f is the friction force of the motor; F 马 F is the gravity of the motor acting on the push piece; 反 It is the component of the gravity of the reflector bracket and the reflector acting on the worm gear mechanism.

[0053] It should be noted that, according to the above formula, F Δ The calculation involves a key parameter F 反 , that is, the weight of the reflector bracket and the reflector acting on the worm gear mechanism. However, it should be noted that the reflector 101 is not in direct contact with the connection seat 1, but is supported by the reflector bracket 102. Therefore, the weight of the reflector 101 is not directly transmitted to the connection seat 1, but is transmitted through the reflector bracket 102, so that the weight of the reflector 101 and the reflector bracket 102 act together on the worm gear mechanism and the connection seat 1.

[0054] Specifically, this force transmission process enables the force applied to the worm gear mechanism to be finally transmitted to the motor assembly 103 through mechanical transmission. This shows that F ΔIn fact, it reflects the force difference generated by the distribution of gravity during the matching process between the motor assembly 103 and the reflector bracket 102. This force difference is a key parameter for measuring the balance force that the connecting base 1 needs to bear in the entire structure.

[0055] Clear F Δ The calculation relationship can not only optimize the design of the connector 1, but also provide data support for ensuring the stability and reliability of the entire device. By rationally designing the structure and material of the connector 1, it is ensured that it can withstand and balance F Δ The force represented can effectively improve the mechanical properties of the system, reduce the risk of structural deformation or failure, and ultimately achieve efficient operation of the device.

[0056] See also Figure 4 , when the push member 103C is in the form of a plate, the elastic force W of the push member in the above formula can be obtained by the following formula:

[0057] Among them, B is the width of the push piece; H is the thickness of the push piece; E is the elastic modulus of the material of the push piece; L is the force arm when the push piece applies elastic force to the motor The length of δ is the deformation and , where c is the size of the deformation angle MC of the push member.

[0058] When the first clamping part 12 and the second clamping part 13 are arranged vertically up and down, the second clamping part 13 located at the bottom needs to bear the gravity of the reflector bracket 102 and the reflector 101 transmitted by the rotating shaft 102A and part of the force of the motor assembly 103. Therefore, the elastic force of the second clamping part 13 needs to be greater than that of the first clamping part 12 located at the top, and the elastic force difference is to resist these additional forces. Through this differentiated elastic force distribution, it can effectively ensure that the clamping force of the two clamping parts on the rotating shaft is always at a sufficient level.

[0059] This design with differentiated elastic force has many advantages. First, it can ensure that the first clamping part 12 and the second clamping part 13 always apply a stable clamping force to the shaft 102A in a dynamic environment, and prevent the shaft from loosening or shifting regardless of how the external force changes. Secondly, by increasing the elastic force of the second clamping part 13, it can bear more load, thereby preventing the first clamping part 12 from excessive deformation or failure due to overload. In addition, this design provides sufficient safety margin for the clamping part in structure, avoiding reverse deformation or breakage due to the clamping part being unable to withstand the external force transmitted by the shaft.

[0060] During the adjustment of the reflector 101 and the reflector bracket 102, the vibration of the motor assembly 103 transmits an impact force to the connection base 1 through the rotating shaft 102A. This impact force acts on the first clamping portion 12 and the second clamping portion 13 of the connection base 1, respectively, thereby placing higher requirements on the stability of the clamping portions.

[0061] In order to cope with the above situation, in some embodiments of the present disclosure, the elastic force of the first clamping portion 12 is greater than the impact force applied by the rotating shaft 102A on the first clamping portion 12, and the elastic force of the second clamping portion 13 is greater than the impact force applied by the rotating shaft 102A on the second clamping portion 13, wherein the impact force applied to the first clamping portion 12 and the impact force applied to the second clamping portion 13 are generated on the rotating shaft 102A by the vibration of the motor assembly 103.

[0062] The impact force applied to the first clamping part 12 and the second clamping part 13 mainly comes from the vibration of the motor assembly 103 during operation, and these vibrations are transmitted to the clamping parts through the rotating shaft 102A. The elastic force of the clamping part is designed to be greater than the impact force transmitted by the rotating shaft, which can effectively avoid the problem of insufficient elastic deformation or loss of clamping force of any clamping part due to vibration and impact.

[0063] By properly setting the elastic force of the clamping part, not only can the impact energy transmitted to the shaft by the vibration be effectively absorbed and mitigated, but also the shaft 102A can be ensured to remain stable in the clamping area to avoid loosening or displacement in a dynamic use environment. This design is particularly suitable for HUD systems that require high precision and high stability, and can improve the operating reliability and imaging effect of the equipment.

[0064] The two clamping parts of the connecting seat 1 can be implemented in many ways, for example, they can be compression springs, torsion springs, etc. In some embodiments of the present disclosure, the two clamping parts can be in the form of spring sheets, specifically, the first clamping part 12 and the second clamping part 13 can be in the form of plates with one end connected to the body and the other end suspended.

[0065] See also Figure 5 The first clamping portion 12 and the second clamping portion 13 are both made of elastic material and are in a substantially rectangular plate-like design. The plate-like clamping portion has a simple and effective structural form, and provides a larger contact area with the rotating shaft 102A through its larger surface area. This design not only increases the distribution area of ​​the clamping force, but also improves the distribution uniformity of the overall structure, so that a continuous and stable clamping force can be applied to the rotating shaft 102A.

[0066] The first end 12A of the first clamping portion 12 is fixedly connected to the main body 11 to provide a stable support. The second end 12B opposite thereto is in a suspended state and has space for free elastic deformation. Similarly, the first end 13A of the second clamping portion 13 is fixedly connected to the main body 11, while the second end 13B opposite thereto is also in a suspended state. The suspended design provides the first clamping portion 12 and the second clamping portion 13 with the ability to deform elastically. When the rotating shaft 102A is inserted into the clamping area defined by the two clamping portions and applies a squeezing force to the clamping portions, the suspended ends of the first clamping portion 12 and the second clamping portion 13 will undergo elastic deformation in a direction away from each other, while their fixed ends provide the necessary support through the connection with the main body 11.

[0067] After elastic deformation, the two clamping parts always tend to return to their original shape due to the elastic properties of the material. This recovery tendency enables the two clamping parts to apply a continuous and stable clamping force to the shaft 102A located on its recovery path, thereby firmly fixing the shaft 102A in the clamping area. The stability of the clamping force is due to the recovery properties of the elastic material, which can maintain a relatively constant clamping effect even in the case of repeated deformation.

[0068] In addition, the suspended plate-shaped clamping part design also gives it excellent anti-vibration performance. In a vibrating environment, the two clamping parts can effectively buffer the external force through elastic deformation and absorb the vibration energy transmitted to the shaft 102A and the reflector bracket 102. This design not only significantly reduces the problem of shaft loosening or displacement caused by vibration, but also further enhances the imaging stability of the HUD system in dynamic usage scenarios, providing users with a more reliable usage experience.

[0069] In some embodiments of the present disclosure, see Figure 6 The main body 11 may be U-shaped and may include a first branch 11A and a second branch 11B opposite to each other, wherein the first clamping portion 12 and the second clamping portion 13 are respectively connected to the opposite sides of the first branch 11A and the second branch 11B to provide stable support for the two clamping portions through the structure of the U-shaped main body.

[0070] The advantage of the U-shaped body is that it provides reliable support and good structural stability. The first branch 11A and the second branch 11B provide independent force support for the two clamping parts, so that the clamping parts are not easily displaced or deformed as a whole when subjected to external forces, ensuring the accuracy of the direction of the clamping force. In addition, this arrangement ensures that the first clamping part 12 and the second clamping part 13 have sufficient space to allow a certain degree of elastic deformation, and facilitates the application of a stable clamping force to the rotating shaft 102A.

[0071] Impact resistance is also a major advantage of the U-shaped body. When the shaft 102A is impacted by external force, the first clamping portion 12 and the second clamping portion 13 will absorb part of the impact energy through elastic deformation, while evenly transmitting the remaining impact force to the two branches of the U-shaped body. This design can significantly reduce the damage to a single clamping portion caused by local pressure, extend the service life of the clamping portion, and improve the durability of the overall structure.

[0072] In addition, the U-shaped structure also optimizes the convenience and accuracy of assembly. The shaft 102A can be directly inserted into the clamping area through the opening of the U-shaped body, and the U-shaped frame can naturally guide the shaft to align with the first clamping portion 12 and the second clamping portion 13. This design not only simplifies the assembly process and reduces the difficulty of operation, but also ensures the accuracy of the shaft insertion position, further improving assembly efficiency and reliability.

[0073] In some embodiments of the present disclosure, see Figure 6 The suspended end of the first clamping portion 12, i.e., the second end portion 12B of the first clamping portion 12, extends toward the second branch 11B in the direction of a first angle A1 with the first branch 11A; the suspended end of the second clamping portion 13, i.e., the second end portion 13B of the second clamping portion 13, extends toward the first branch 11A in the direction of a second angle A2 with the second branch 11B.

[0074] The mechanical properties of the clamping area can be further optimized by the inclined design of the first clamping portion 12 and the second clamping portion 13. The first clamping portion 12 is inclined in the direction of the first angle A1 with the body 11 and extends toward the second clamping portion 13; similarly, the second clamping portion 13 is inclined in the direction of the second angle A2 with the body 11 and extends toward the first clamping portion 12. This makes the suspended ends of the first clamping portion 12 and the second clamping portion 13 point to the clamping area respectively, forming a symmetrical or complementary extension relationship, thereby ensuring that the elastic forces applied by the two clamping portions are symmetrically distributed in direction.

[0075] The setting of the tilt angle allows the elastic force of the two clamping parts to be adjusted according to demand. When parameters such as material, elastic coefficient and thickness are determined, by increasing the angle between each of the two clamping parts and the body 11, the elastic deformation range of the clamping part can be increased, thereby increasing the elastic force, which is suitable for situations where a higher clamping force is required; on the contrary, by reducing the angle, the elastic force of the clamping part can be reduced, which is suitable for situations where the clamping force requirement is small but more sensitive is required. By accurately adjusting the angle, precise control of the elastic force can be achieved to meet performance requirements in different use environments.

[0076] The symmetrical or complementary characteristics of the oblique extension of the first clamping portion 12 and the second clamping portion 13 help to improve the uniformity and stability of the force on the shaft in the clamping area. The two clamping portions apply opposite restoring forces to the shaft 102A, respectively, to avoid the problem of excessive force on one side, and can act evenly on both sides of the shaft, effectively protecting the shaft surface, reducing wear and extending its service life. In addition, the symmetrical elastic force distribution can also effectively absorb and disperse vibration or impact energy in a dynamic environment, preventing the shaft from loosening or shifting due to external forces, thereby significantly improving the seismic performance of the HUD device during operation.

[0077] In order to achieve differentiated elastic force design of the two clamping parts, adjustments can be made in a variety of ways. In addition to the above-mentioned angle setting method, differentiated elastic force distribution can also be achieved by selecting materials with different elastic moduli, optimizing the shape of the clamping parts, or adjusting the length of the suspended end.

[0078] In some embodiments of the present disclosure, see Figure 6 The first clamping portion 12 is located above the second clamping portion 13 in the vertical direction, and when the two do not undergo elastic deformation, the first angle A1 is smaller than the second angle A2. This design is to cope with the mechanical difference caused by gravity in the vertical arrangement, thereby optimizing the functionality and stability of the clamping portion.

[0079] When the first clamping portion 12 and the second clamping portion 13 are installed in an up-and-down arrangement, the second clamping portion 13 needs to additionally bear a portion of the gravity of the reflector 101 and the reflector bracket 102 transmitted by the rotating shaft 102A. In order to ensure that the rotating shaft 102A can be firmly held in the clamping area, the second clamping portion 13 needs to provide a greater elastic force than the first clamping portion 12. By setting the second included angle A2 of the second clamping portion 13 to be greater than the first included angle A1 of the first clamping portion 12, the second clamping portion 13 can generate a stronger elastic force when being squeezed by the rotating shaft 102A, so as to effectively resist the additional load caused by gravity.

[0080] In some embodiments of the present disclosure, the elastic force of the first clamping portion 12 and the second clamping portion 13 arranged vertically may be related to their size, material properties, deformation, and the force arm of the pushing member 103C of the motor assembly 103 acting on the motor 103A.

[0081] Specifically, see Figure 6 In the case where both the first clamping portion 12 and the second clamping portion 13 are plate-shaped, the elastic force F of the first clamping portion 12 located at the top is a It can be obtained by the following formula:

[0082] Wherein, B is the width of the first clamping portion 12; H is the thickness of the first clamping portion 12; E is the elastic modulus of the material of the first clamping portion 12; L1 is the length of the force arm l1 when the first clamping portion 12 applies elastic force to the rotating shaft 102A; δ is the deformation amount and , wherein a is the size of the first angle A1 between the first clamping portion 12 and the first branch portion 11A.

[0083] In addition, the elastic force F of the second clamping portion 13 located below b It can be obtained by the following formula:

[0084] Wherein, B is the width of the second clamping portion 13; H is the thickness of the second clamping portion 13; E is the elastic modulus of the material of the second clamping portion 13; L2 is the length of the force arm l2 when the second clamping portion 13 applies elastic force to the shaft 102A; δ is the deformation amount and Wherein, b is the size of the second angle A2 between the second clamping portion 13 and the second branch portion 11B.

[0085] The inclined design of the clamping portion not only enhances the distribution of elastic force, but also provides a good guide for the insertion of the shaft 102A. In particular, the inclined clamping portion can naturally guide the shaft 102A into the clamping area, reduce the resistance during insertion, and improve the convenience and accuracy of assembly. In addition, see Figure 5 In order to further simplify the insertion process of the rotating shaft 102A, a guide portion DF is provided on the end of the clamping portion close to the opening of the U-shaped body 11. For example, a sloped guide portion DF can be provided at the second end 13B of the second clamping portion 13. Such a guide portion can provide a larger spacing at the opening of the U-shaped body 11, making it easier to insert the rotating shaft 102A from the opening into the clamping area.

[0086] The existence of the guide part DF not only improves the assembly efficiency, but also significantly reduces the difficulty of alignment during the insertion process and reduces the requirements for assembly operation accuracy. In addition, the larger spacing design also avoids unnecessary friction between the shaft and the surface of the clamping part during insertion, thereby protecting the surface integrity of the clamping part and extending its service life.

[0087] In some embodiments of the present disclosure, in order to further enhance the connection stability between the connecting seat 1 and the rotating shaft 102A, in addition to the connection achieved by the clamping force formed by the mutual cooperation of the two clamping parts and the friction force between the two clamping parts and the rotating shaft 102A, at least one of the first clamping part 12 and the second clamping part 13 can also be provided with a limiting part for limiting the displacement of the rotating shaft 102A relative to the connecting seat 1.

[0088] The limiting portion can effectively prevent the rotating shaft 102A from leaving the clamping area by means of a physical stop. Figure 6 and Figure 7 As shown, the first clamping portion 12 may be formed with a first limiting portion 12C, and the second clamping portion 13 may be formed with a second limiting portion 13C. The two limiting portions are respectively designed as concave structures that match the partial outer shape of the rotating shaft 102A. For example, when the rotating shaft 102A is spherical, the inner surface of the limiting portion may be designed as a curved surface so as to precisely fit the surface of the rotating shaft 102A.

[0089] The design of the limiting portion further limits the displacement of the rotating shaft 102A, thereby effectively preventing the rotating shaft 102A from sliding or deflecting in the axial or radial direction under vibration or external force impact. The concave structure of the limiting portion can provide multi-point contact, further dispersing the pressure of the clamping portion on the rotating shaft, reducing the risk of local stress concentration, and improving the reliability and stability of the connection.

[0090] In addition, the arc surface design of the limiting part can maintain a good fit with the surface of the shaft 102A, ensuring the limiting effect while avoiding excessive wear on the shaft surface. For the spherical shaft 102A, the arc surface limiting part provides a more natural support and guidance function, allowing it to maintain flexibility and stability in a dynamic environment. This design is particularly suitable for application scenarios that require frequent angle adjustment or dynamic loads, such as large reflector brackets in HUD devices.

[0091] In some embodiments of the present disclosure, the connection base 1 may be an integrally formed structure. Figure 6 As shown, this design forms a U-shaped body 11 by bending an elastic sheet into a U-shape. Functional structures such as a clamping portion and a limiting portion can be directly formed on the body 11 by stamping, cutting or other processing methods. This integrated design avoids the complexity of splicing multiple parts and the possible structural weakness problems.

[0092] The integrally formed connection base 1 has better material continuity and overall strength. The overall structural integrity of the U-shaped body 11 enhances the support capacity of the clamping part, and exhibits higher strength and stability when subjected to force, and can effectively withstand the weight and external force of the rotating shaft 102A and the reflector 101 and reflector bracket 102 transmitted by it. At the same time, since the clamping part and the limiting part are directly integrally formed by the body, the elastic properties of the material are more uniform and the elastic force distribution is more stable, thereby ensuring the reliability and uniformity of the clamping force, and further improving the positioning accuracy and anti-seismic performance of the rotating shaft 102A.

[0093] In addition, the one-piece design significantly simplifies the processing and assembly process. Through stamping and bending processes, the clamping part and the limiting part can be directly formed in one continuous production process without the need for additional assembly steps. This method reduces the complexity of the production process, improves manufacturing efficiency, and reduces manufacturing costs.

[0094] See also Figure 5 In order to facilitate the connection between the connection base 1 and other components, a connection hole 14 for the connection member to penetrate can be provided on the connection base 1. These connection holes provide a reliable fixing interface between the connection base 1 and the external components, so that the connection base can be more firmly integrated into the HUD device or other systems. In addition, in order to avoid affecting the assembly efficiency due to structural interference during installation and operation, part of the material can be removed from the non-critical part of the connection base 1, and it can be designed as a partially hollowed-out shape.

[0095] This partially hollowed-out design retains the basic function and strength of the connector 1 while also reducing weight. By rationally removing materials that do not affect the structural integrity and elastic properties, the connector 1 not only reduces its own weight, but also optimizes material utilization. This lightweight design has a positive impact on the performance improvement of the entire system, especially in HUD devices, where reducing the weight of the connector can reduce vibration transmission efficiency and further improve dynamic stability.

[0096] In addition, the hollow design can also improve the appearance of the connector and improve its heat dissipation performance. In some complex applications, the hollow structure can also help reduce heat accumulation.

[0097] Some embodiments of the present disclosure also provide a reflector assembly 2. Figure 4 The reflector assembly 2 may include: a reflector bracket 102 for supporting the reflector 101 and a connection seat 1 for the reflector bracket as described above. The reflector bracket 102 may include a rotating shaft 102A. The reflector bracket 102 may drive the reflector 101 to rotate by rotating the rotating shaft 102A.

[0098] Some embodiments of the present disclosure also provide a HUD device 100. Figure 3 , the HUD device 100 may include the reflector assembly 2 according to the above description.

[0099] It should be noted that the technical solutions described in the embodiments of the present disclosure can be combined arbitrarily without conflict.

[0100] The above is only a specific embodiment of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any person skilled in the art who is familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A connection seat for a reflector bracket, wherein the reflector bracket is used to support a reflector and comprises a rotating shaft, wherein the reflector bracket drives the reflector to rotate by rotating the rotating shaft, characterized in that: The connecting seat comprises: ontology; A first clamping portion and a second clamping portion arranged on the body opposite to each other; The first clamping portion and the second clamping portion are configured to be elastically deformed by being squeezed by the rotating shaft inserted therebetween, and the rotating shaft is held between the first clamping portion and the second clamping portion by elastic force.

2. The connecting seat for the reflector bracket according to claim 1, characterized in that: The first clamping portion and the second clamping portion are arranged so that the difference between the elastic force of the first clamping portion and the elastic force of the second clamping portion is equal to the difference between the forces of the motor assembly for driving the reflector bracket to rotate and the reflector bracket.

3. The connecting seat for the reflector bracket according to claim 2, characterized in that: The elastic force of the first clamping part is greater than the impact force applied by the rotating shaft to the first clamping part, and the elastic force of the second clamping part is greater than the impact force applied by the rotating shaft to the second clamping part, wherein the impact force applied to the first clamping part and the impact force applied to the second clamping part are generated on the rotating shaft by the vibration of the motor assembly.

4. The connecting seat for a reflector bracket according to any one of claims 1 to 3, characterized in that: The first clamping part and the second clamping part are respectively in the shape of a plate with one end connected to the body and the other end suspended.

5. The connecting seat for the reflector bracket according to claim 4, characterized in that: The body is U-shaped and includes a first branch and a second branch opposite to each other, wherein the first clamping portion and the second clamping portion are respectively connected to one side of the first branch and the second branch opposite to each other.

6. The connecting seat for the reflector bracket according to claim 5, characterized in that: The suspended end of the first clamping portion extends in a direction forming a first angle with the first branch portion toward the second branch portion; The suspended end of the second clamping portion extends in a direction forming a second angle with the second branch portion toward the first branch portion.

7. The connecting seat for the reflector bracket according to claim 6, characterized in that: The first clamping portion is located above the second clamping portion in a vertical direction, and when the first clamping portion and the second clamping portion are not elastically deformed, the first angle is smaller than the second angle.

8. The connecting seat for the reflector bracket according to claim 4, characterized in that: At least one of the first clamping portion and the second clamping portion is formed with a limiting portion for limiting the rotation shaft from leaving the connecting seat.

9. The connecting seat for the reflector bracket according to claim 8, characterized in that: The restricting portion is formed as a recessed portion matching a shape of a portion of the rotating shaft.

10. A reflector assembly, characterized in that: The reflector assembly comprises: A reflector bracket for supporting the reflector, wherein the reflector bracket comprises a rotating shaft, and the reflector bracket drives the reflector to rotate by rotating the rotating shaft; A connection base for a reflector support according to any one of claims 1 to 9.

11. The reflector assembly according to claim 10, characterized in that The rotating shaft is formed in a spherical shape.

12. A head-up display device, characterized in that: The head-up display device comprises the reflector assembly according to claim 10 or 11.

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