Lens mounting structure, reflector mounting structure and optical module

Abstract

The utility model relates to a lens mounting structure, which comprises a boss structure (2) arranged on a mounting surface around a mounting hole (1) on a lens, the boss structure (2) comprises a plurality of bosses (201) arranged at intervals, and the plurality of bosses (201) surround the mounting hole (1). In addition, the utility model also relates to a reflector mounting structure and an optical module. The lens mounting structure can prevent the lens from loosening and reduce lens deformation.

Description

Technical Field

[0001] The utility model relates to a mounting structure, in particular to a lens mounting structure, and further to a reflector mounting structure and an optical module. Background Art

[0002] The low beam module is one of the key components in the automotive lighting system. It can provide lighting for the driver, allowing the driver to see the road ahead, obstacles and other vehicles more clearly at night, in bad weather or in low visibility conditions, thereby improving safety. The reflector in the low beam module mainly plays the role of focusing the light beam or controlling the distribution of the light beam. During the operation of the low beam module, the reflector will generate heat. Therefore, it is necessary to install a radiator at a suitable position near the reflector to ensure that the operating temperature of the low beam module is within an acceptable range and prevent overheating from adversely affecting the optical performance and life of the low beam module.

[0003] The prior art is to directly press the reflector onto the radiator through screws. Due to manufacturing tolerances, it is difficult to ensure a high flatness when the equipment processes the mounting surface of the reflector. When the nut of the screw is pressed on the mounting surface, the protrusion on the mounting surface will sharply reduce the contact area between the nut and the reflector, resulting in unbalanced contact pressure, which will cause a part of the reflector to be subjected to excessive pressure, deformed, and damaged, while the other part does not have sufficient tightening force, which may cause the relative position of the reflector and the radiator to change, reduce the heat dissipation effect of the radiator, cause heat accumulation in the reflector, and affect the life of the reflector, or cause looseness and vibration, causing the product to make noise, or even cause the reflector to fall off, causing the low beam module to fail. In addition, in the process of tightening the screw, it is easy to apply too much torque, the tightening force provided by the screw is too large, and the friction between the reflector and the screw is also too large, so that the reflector rotates under the drive of the screw, but the freedom of rotation of the reflector is fixed by another screw, which causes the reflector to deform, and the deformation will have a certain impact on the performance of the reflector. In addition, when maintaining and replacing the low beam module, the disassembly and reinstallation process will cause the reflector and radiator to deform, especially after repeated installation. Since the reflector and radiator have been deformed, maintenance personnel need to adjust and calibrate them multiple times to make the reflector and radiator achieve the desired effect, which seriously slows down maintenance efficiency and increases maintenance costs.

[0004] In view of this, it is necessary to design a lens mounting structure that can overcome the above technical difficulties and effectively solve or alleviate the above technical defects. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a lens installation structure, which can prevent the lens from loosening and reduce the deformation of the lens.

[0006] Furthermore, the technical problem to be solved by the utility model is to provide a reflector mounting structure, wherein the mounting structure of the reflector and the radiator can prevent the reflector from loosening and reduce the deformation of the reflector and the radiator.

[0007] Furthermore, the technical problem to be solved by the present invention is to provide an optical module, the lens mounting structure of the optical module can prevent the lens from loosening and reduce the deformation of the lens.

[0008] In order to solve the above technical problems, the utility model provides a lens mounting structure, which includes a boss structure arranged on a mounting surface around a mounting hole on the lens, wherein the boss structure includes a plurality of bosses arranged at intervals, and the plurality of bosses surround the mounting hole.

[0009] Preferably, the height of the boss is in the range of 0.25-0.75 mm.

[0010] Preferably, the interval between adjacent bosses is in the range of 0.25-0.75 mm.

[0011] Preferably, the plurality of bosses are arranged in a circular array or a rectangular array.

[0012] Preferably, the projection area of ​​all the bosses on the mounting surface accounts for 40%-60% of the projection area of ​​the boss structure on the mounting surface.

[0013] Preferably, the surface of the boss used to abut against the clamping member is at least one of a flat surface, a toothed surface and a patterned surface.

[0014] Preferably, the cross-sectional area of ​​the boss gradually decreases from the root to the top.

[0015] Specifically, the boss structure is integrally formed with the lens.

[0016] On the basis of the above technical solutions, the utility model further provides a reflector mounting structure, which includes the lens mounting structure of any of the above technical solutions.

[0017] On the basis of the above technical solutions, the utility model further provides an optical module, which includes the lens mounting structure of any of the above technical solutions or the reflector mounting structure of any of the above technical solutions.

[0018] Through the above technical solution, the utility model provides a lens mounting structure, which is provided with a plurality of bosses arranged at intervals around the mounting hole, and the clamping piece is inserted into the corresponding hole on the lens mounting surface after passing through the mounting hole, and the lens is pressed on the lens mounting surface by pressure to realize the lens mounting, and the clamping piece is pressed on the boss. Since the processing of the small plane is more accurate than that of the large plane, the flatness of the boss surface is higher, and the contact area caused by the bulge on the contact surface between the lens and the clamping piece is avoided to be sharply reduced, so that the lens mounting structure of the utility model can ensure a larger contact area between the lens and the clamping piece, thereby increasing the friction and contact force between the lens and the clamping piece, making the lens mounting structure more firm, stable and reliable. And by supporting the clamping piece with multiple bosses, the pressure of the clamping piece can be dispersed, avoiding the concentration of local pressure, thereby reducing the risk of loosening, deformation or damage, and further improving the stability and reliability of the lens mounting structure. In addition, when excessive torque is used when tightening the clamp, the angular displacement of the lens will be reflected on the small boss, causing deformation to occur on the small boss without causing deformation of the entire lens, thereby avoiding product quality problems caused by inaccurate positioning of the optical surface.

[0019] Other features and advantages of the present invention will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic diagram of a lens mounting structure according to a specific embodiment of the utility model;

[0021] Figure 2 It is a schematic diagram of a boss structure of a specific implementation mode of the utility model;

[0022] Figure 3 It is a schematic diagram of a boss structure of a specific implementation mode of the utility model;

[0023] Figure 4 It is a schematic diagram of a boss structure of a specific implementation mode of the utility model;

[0024] Figure 5 It is a side schematic diagram of the boss structure of a specific implementation method of the utility model.

[0025] Description of Reference Numerals

[0026] 1Mounting hole 2Boss structure

[0027] 201 boss 202 boss clearance DETAILED DESCRIPTION

[0028] The following is a further detailed description of the implementation of the utility model in conjunction with the accompanying drawings and examples. The detailed description of the following examples and the accompanying drawings are used to exemplarily illustrate the principles of the utility model, but cannot be used to limit the scope of the utility model. The utility model can be implemented in many different forms, not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

[0029] The utility model provides these embodiments to make the utility model thorough and complete, and to fully express the scope of the utility model to those skilled in the art. It should be noted that unless otherwise specifically stated, the relative arrangement of the parts and steps, the composition of the materials, the numerical expressions and the numerical values ​​described in these embodiments should be interpreted as merely exemplary, rather than as limiting.

[0030] It should be noted that, in the description of the present invention, unless otherwise specified, the meaning of "multiple" is greater than or equal to two; the terms "upper" and "lower" and the like indicate positions or positional relationships only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present invention. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0031] In addition, the words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different parts. The words "include" or "comprise" and similar words mean that the elements before the word include the elements listed after the word, and do not exclude the possibility of including other elements.

[0032] It should also be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances. When a specific device is described as being located between a first device and a second device, there may or may not be an intermediate device between the specific device and the first device or the second device.

[0033] All terms used in the present invention have the same meanings as those understood by ordinary technicians in the field to which the present invention belongs, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries should be interpreted as having meanings consistent with their meanings in the context of the relevant technology, and should not be interpreted in an idealized or extremely formal sense, unless explicitly defined herein.

[0034] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.

[0035] like Figure 1 As shown, the lens mounting structure of the present invention includes a boss structure 2 arranged on a mounting surface around a mounting hole 1 on the lens, the boss structure 2 includes a plurality of bosses 201 arranged at intervals, the intervals between the bosses 201 form a boss gap 202, and the plurality of bosses 201 surround the mounting hole 1, and a clamping member can pass through the mounting hole 1 to fix the lens on the surface of a corresponding part. The clamping member can be a screw, which passes through the mounting hole 1 and is screwed into a corresponding position on the corresponding part. The nut of the screw abuts against the boss 201, so that the lens is pressed against the corresponding part by the screw. In the process of tightening the screw, applying torque to the lens will cause the boss 201 to deform without causing the entire lens to deform, so that the lens mounting structure can reduce the risk of deformation and damage during the installation process. The surface of the boss structure 2 in contact with the screw is the upper surface of multiple bosses 201. The prior art adopts an installation method of directly contacting the screw against the surface of the lens. The boss structure 2 is a plurality of small planes, while the surface of the lens is a large plane. Due to manufacturing tolerances, it is easier to have bulges when processing the large plane than when processing the small planes. The bulges will cause the contact area between the nut and the lens to decrease sharply, so that the friction between the screw and the lens is small, resulting in low stability of the lens installation structure, which in turn leads to problems such as lens loosening, positioning failure and detachment. Due to manufacturing tolerances, the assembly process of the prior art may cause gaps between components, resulting in slight relative displacement during the installation process, which in turn leads to inaccurate assembly positioning. The lens installation structure of the utility model has a larger contact area, which helps to improve the rigidity and connectivity of the installation structure, thereby improving the stability and reliability of the installation and reducing the relative displacement that may occur. In addition, after the screw is pressed, the boss 201 undergoes a certain deformation, thereby filling the uneven surface of the nut, ensuring the tight connection between the screw and the lens, reducing the relative displacement that may occur, and ensuring the accuracy of positioning. The boss structure 2 disperses the pressure of the nut through a plurality of bosses 201, so that each boss 201 can bear sufficient tightening force, avoiding the risk of loosening, deformation and damage caused by local pressure concentration or insufficient local pressure. Figures 2 to 4 As shown, the boss 201 of the lens mounting structure of the present invention can be designed in various shapes, all of which belong to the protection scope of the present invention. In addition, as a preferred embodiment, the shape and size of the boss structure 2 are set to match the shape and size of the clamping part of the clamping member to ensure that there is a large contact area between the boss structure 2 and the clamping member.

[0036] As a preferred embodiment, Figure 5 As shown, the height a of the boss 201 ranges from 0.25 to 0.75 mm. If the height a of the boss 201 is too high, the boss 201 may be easily folded by the clamping member, and if the height a of the boss 201 is too low, the boss 201 may be compressed by the clamping member and lose its effect.

[0037] As a preferred embodiment, Figure 5 As shown, the interval b between adjacent bosses 201 ranges from 0.25 to 0.75 mm. If the interval b between adjacent bosses 201 is too large, it may easily lead to a smaller total contact area between the boss structure 2 and the clamping portion of the clamping member, thereby making the friction and supporting force between the two lower and easily crushed by the clamping member. If the interval b between adjacent bosses 201 is too small, after the boss 201 is compressed by the clamping member, the boss 201 will be deformed laterally, making it difficult to disperse the pressure.

[0038] As a preferred embodiment, the plurality of bosses 201 are as follows Figure 4 The circular array arrangement shown or Figure 3 The rectangular array arrangement shown allows the pressure to be evenly distributed on the boss structure 2, thereby reducing the risk of loosening, deformation and damage, and further improving the stability and reliability of positioning.

[0039] As a preferred embodiment, the projected area of ​​all bosses 201 on the mounting surface accounts for 40%-60% of the projected area of ​​the boss structure 2 on the mounting surface. If the projected area of ​​the boss 201 on the mounting surface is too small, it may easily lead to a small friction force between the boss structure 2 and the clamping member. If the projected area of ​​the boss 201 on the mounting surface is too large, it may easily lead to an excessively large upper surface area of ​​each boss 201, resulting in insufficient flatness of the processed upper surface of the boss 201.

[0040] As a preferred embodiment, the surface of the boss 201 used to abut the clamping member can be a plane to ensure a larger contact area between the boss 201 and the clamping member, and the plane can also be processed into a serrated surface or a patterned surface to increase the friction between the boss 201 and the clamping member, so as to further improve the stability and reliability of the lens mounting structure.

[0041] As a preferred embodiment, the cross-sectional area of ​​the boss 201 gradually decreases from the root to the top, thereby ensuring the flatness of the upper surface of the boss 201 and improving the structural strength of the boss structure 2 to prevent the boss structure 2 from being crushed by the clamp.

[0042] As a specific implementation, the boss structure 2 is integrally formed with the lens, which further improves the connection stability between the boss structure 2 and the lens and improves production efficiency.

[0043] On the basis of the lens mounting structure mentioned in the above technical solution of the utility model, the utility model further provides a reflector mounting structure, which includes the lens mounting structure mentioned in the present application. In some embodiments, the reflector mounting structure is used to mount the reflector on the radiator, the clamping member is a screw, the lens is a reflector, and the mounting surface is the surface of the radiator. The reflector mounting structure is not prone to relative displacement during the installation process, thereby ensuring the positioning accuracy of the installation process, and the deformation only occurs on the boss structure 2 when tightening the screw, and the reflector will not be damaged. The installation and maintenance process does not require repeated adjustment and correction, which improves work efficiency. Since the upper surface of the boss 201 is small, the flatness of the upper surface of the boss 201 is high, thereby ensuring that the boss structure 2 and the screw have a large contact area, preventing the connection between the radiator and the reflector from loosening, thereby ensuring that the reflector and the radiator always maintain the best relative position, ensuring that heat can be effectively conducted from the light source and the reflector to the radiator, and effectively dissipated, maximizing the heat dissipation efficiency, and preventing overheating from adversely affecting the optical performance and service life of the reflector. Since the reflector mounting structure can ensure greater contact between the reflector and the screw, the reflector and the heat sink are always kept in the appropriate position, and are not prone to loosening, falling off or deformation during use, and prevent the reflector from offsetting or deforming to cause abnormal beam control or incorrect light distribution, thereby ensuring the performance consistency, reliability and long-term stability of the optical module using the reflector mounting structure. In addition, during installation and maintenance, excessive torque applied when tightening the screws will cause the boss structure 2 to deform, while the reflector body will not be affected, so that no further adjustment and correction is required after installation, which is convenient for maintenance and reduces maintenance costs.

[0044] On the basis of the lens mounting structure mentioned in the above technical scheme of the utility model, the utility model further provides an optical module, which includes the lens mounting structure or reflector mounting structure mentioned in the present application, so that the lens installation of the optical module is relatively stable and reliable, and the lens main body is not prone to phase change during the installation process, thereby facilitating repair and maintenance.

[0045] It can be seen from the above description that the advantages of the utility model are: first, the lens installation structure of the utility model can increase the contact area between the lens and the clamping member, increase the friction between the lens and the clamping member, and prevent the lens from loosening; second, it can avoid deformation of the lens body during installation, so that there is no need for debugging and correction, and the maintenance efficiency is improved; third, the boss can disperse the pressure and reduce the concentrated force on a single point, thereby reducing the risk of loosening, deformation or damage, and enhancing the structural stability and reliability; fourth, the stability and reliability of the connection between the reflector and the radiator are ensured, and the heat dissipation performance is maximized;

[0046] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, the technical solution of the present invention can be subjected to a variety of simple modifications, and these simple modifications all belong to the protection scope of the present invention.

[0047] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present invention will not further describe various possible combinations.

[0048] In addition, various embodiments of the present invention may be arbitrarily combined, and as long as they do not violate the concept of the present invention, they should also be regarded as the contents disclosed by the present invention.

Claims

1. A lens mounting structure, characterized in that: It comprises a boss structure (2) arranged on a mounting surface around a mounting hole (1) on a lens, the boss structure (2) comprising a plurality of bosses (201) arranged at intervals, and the plurality of bosses (201) surround the mounting hole (1).

2. The lens mounting structure according to claim 1, characterized in that: The height of the boss (201) is in the range of 0.25-0.75 mm.

3. The lens mounting structure according to claim 1, characterized in that: The interval between adjacent bosses (201) ranges from 0.25 to 0.75 mm.

4. The lens mounting structure according to claim 1, characterized in that: The plurality of bosses (201) are arranged in a circular array or a rectangular array.

5. The lens mounting structure according to claim 1, characterized in that: The projection area of ​​all the bosses (201) on the mounting surface accounts for 40%-60% of the projection area of ​​the boss structure (2) on the mounting surface.

6. The lens mounting structure according to claim 1, characterized in that: The surface of the boss (201) used to abut against the clamping piece is at least one of a flat surface, a toothed surface and a patterned surface.

7. The lens mounting structure according to claim 1, characterized in that: The cross-sectional area of ​​the boss (201) gradually decreases from the root to the top.

8. The lens mounting structure according to claim 1, characterized in that: The boss structure (2) is integrally formed with the lens.

9. A reflector mounting structure, characterized in that: The lens mounting structure comprises the lens mounting structure according to any one of claims 1 to 8.

10. An optical module, characterized in that: The invention comprises a lens mounting structure according to any one of claims 1 to 8 or a reflector mounting structure according to claim 9.

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