Sensor light source module connecting structure
By using a mechanical clamping connection structure, the irreversibility and aging problems of the sensor light source module are solved, achieving a detachable and repairable high-precision connection, which improves the production efficiency and reliability of the sensor.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 北京领奕科技有限公司
- Filing Date
- 2025-12-24
- Publication Date
- 2026-07-21
AI Technical Summary
In existing technologies, the fixing methods of sensor light source modules are irreversible, difficult to maintain, have poor process consistency, and are prone to aging, resulting in high production costs, large measurement errors, and unreliability.
It adopts a mechanical clamping connection structure. Through the mechanical cooperation between the clamping sleeve and the optical lens and lamp board, it achieves a detachable and maintainable rigid connection by using anti-rotation structure and fasteners, eliminating the uncontrollable factors of adhesive bonding.
This technology enables the sensor light source module to be detachable and maintainable, improves process consistency and long-term stability, reduces production and maintenance costs, and avoids potential damage caused by adhesive aging.
Smart Images
Figure CN224536253U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of sensor technology, and in particular to a sensor light source module connection structure. It is a mechanical clamping connection structure used to fix the precise assembly of the internal light source module and the optical lens of the sensor, and the light source and the lens are stabilized by the clamping sleeve. Background Technology
[0002] In the manufacturing of various optical sensors (such as lidar, spectrometers, and distance sensors), the relative position of the emitting light source (light panel) and the receiving or projecting lens (lens) must maintain extremely high precision and long-term stability; any displacement or deformation will cause changes in the optical path, which in turn will lead to measurement errors, signal attenuation, or false triggering.
[0003] In existing technologies, a common fixing method involves directly fixing the lamp board to the sensor housing or internal bracket with screws, while the lens is mounted separately on the other side. Further reinforcement is achieved by applying adhesive to the lamp board and lens, placing both directly within the sensor housing. This fixing method has the following significant drawbacks:
[0004] ① Irreversible and difficult to repair:
[0005] Adhesive bonding is a permanent fixation method; once it cures, disassembly will almost inevitably lead to damage to the lamp board or lens, resulting in extremely high costs for calibration rework during production and after-sales maintenance, and may even lead to the scrapping of the entire module.
[0006] ② Poor process consistency:
[0007] The amount of adhesive applied, its location, and the curing effect are easily affected by human factors and environmental temperature and humidity, making it difficult to guarantee product consistency and production yield.
[0008] ③ There is a risk of aging and failure:
[0009] After long-term temperature cycling, humid heat aging, or chemical corrosion, the adhesive strength and physical properties may decrease, resulting in cracking or creep, which leads to a decrease in connection reliability over time.
[0010] Therefore, there is an urgent need in this field for a new connection solution that can significantly improve the connection stability of core optical components while maintaining the high precision advantage of lidar, and is detachable, repairable, has good process consistency, and has no risk of aging. Utility Model Content
[0011] To solve the above-mentioned technical problems, this utility model provides a sensor light source module connection structure, which overcomes the defects of existing sensors that use glue to fix the lamp board and lens, such as non-repairability, poor process consistency, and aging risk. It provides a stable, reliable, high-precision, reusable and easy-to-maintain sensor light source module connection structure.
[0012] A sensor light source module connection structure, comprising:
[0013] The components include: lamp panel, optical lens, housing, and pressure sleeve.
[0014] The outer wall of the lens barrel of the optical lens is provided with an anti-rotation structure and a positioning post;
[0015] The pressure sleeve is a ring-shaped or cylindrical mechanical component whose inner wall shape matches the outer wall shape of the optical lens barrel, used to fit the optical lens; and is provided with an anti-rotation groove to lock the anti-rotation structure, so that the optical lens cannot rotate freely inside the pressure sleeve.
[0016] The outer surface of the pressure sleeve is radially provided with a fixing wing, and the fixing wing is provided with a through hole;
[0017] As an example, the number of fixed wings is at least one set.
[0018] The lamp plate is provided with through holes and positioning structures. The positioning structure matches the positioning post to position the optical lens. The lamp plate is then fixed to the housing through the through holes.
[0019] The housing is provided with threaded posts corresponding to the through holes and the via holes;
[0020] By fastening the threaded post through the locking hole, the pressure sleeve is fixed. At this moment, the pressure sleeve is simultaneously driven to press the optical lens and the lamp plate tightly onto the housing, achieving a rigid connection under the detachable structure of the four components.
[0021] As an example, the fastener is a screw.
[0022] As an example, the positioning structure is a positioning hole structure that matches the positioning post, thereby achieving circumferential positioning of the optical lens and effectively preventing invalid displacement during the installation of the optical lens.
[0023] As an example, the matching of the inner wall shape of the pressure sleeve with the outer wall shape of the optical lens barrel means that the inner wall of the pressure sleeve and the outer wall of the optical lens barrel are one of interference fit, threaded fit, or anti-rotation structure, so as to enhance the bonding strength and prevent relative rotation between the two.
[0024] As an example, the anti-rotation structure is as follows: convex tooth structures are provided on both sides, and the two sides have different sizes and shapes. While preventing rotation, it also prevents the optical lens from being installed upside down to a certain extent.
[0025] The beneficial effects of this utility model are:
[0026] Compared with the prior art, this utility model has the following beneficial effects and progress, including:
[0027] ① Disassembly and repairability: The purely mechanical connection allows for disassembly and assembly without damage at any time, greatly facilitating production adjustment, component replacement and after-sales maintenance, and reducing life cycle costs.
[0028] ② High consistency and high reliability: The connection stiffness is guaranteed by a defined mechanical structure and screw torque, eliminating the performance dispersion caused by fluctuations in the adhesive process; there is no aging problem of organic adhesives, resulting in better long-term stability.
[0029] ③ Eliminate the risk of internal stress: Controllable mechanical pressure replaces the shrinkage stress of glue curing, avoiding potential damage to precision optical components.
[0030] ④ Improve production efficiency: The assembly process does not require waiting for the glue to cure, it can be used immediately after assembly, shortening the production cycle, and the requirements for the environment (such as cleanliness and temperature) are relatively relaxed. Attached Figure Description
[0031] Figure 1 This is an exploded perspective view (front view) of the sensor light source module connection structure of this utility model.
[0032] Figure 2 This is an exploded perspective view (rear view) of the sensor light source module connection structure of this utility model.
[0033] Figure 3 This is a schematic diagram of the pressure sleeve structure of a sensor light source module connection structure according to the present invention.
[0034] Figure 4 This is a schematic diagram (side sectional view) showing the effect after the pressure sleeve of the sensor light source module connection structure of this utility model is tightened.
[0035] Figure 5 This is a schematic diagram (front sectional view) of the overall structure of the sensor light source module connection structure after the pressure sleeve is tightened. Detailed Implementation
[0036] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application. Figures 1 to 5 As shown.
[0037] A sensor light source module connection structure, comprising:
[0038] The components include a light panel 101, an optical lens 102, a housing 103, and a pressure sleeve 104, wherein:
[0039] The outer wall 105 of the lens barrel of the optical lens 102 is provided with an anti-rotation structure 107 and a positioning post 201;
[0040] The pressure sleeve 104 is a ring-shaped or cylindrical mechanical component whose inner wall shape matches the shape of the outer wall 105 of the lens barrel of the optical lens 102, and is used to fit the optical lens 102; and is provided with an anti-rotation groove 202 to lock the anti-rotation structure 107, so that the optical lens 102 cannot rotate freely in the pressure sleeve 104.
[0041] The outer side of the pressure sleeve 104 is radially provided with a fixing wing 108, and the fixing wing 108 is provided with a through hole 109;
[0042] As an example, the number of the fixed wings 108 is at least one set.
[0043] The lamp panel 101 is provided with a through hole 110 and a positioning structure 111. The optical lens 102 is positioned by matching the positioning structure 111 with the positioning post 201. The lamp panel 101 is then fixed to the housing 103 through the through hole 110.
[0044] The housing 103 is provided with threaded post 106 corresponding to the through hole 110 and the through hole 109;
[0045] By fastening the fastener 301 through the threaded post 106 and locking the through hole 109, the pressure sleeve 104 is fixed. At this moment, the pressure sleeve 104 is simultaneously driven to press the optical lens 102 and the lamp plate 101 tightly onto the housing 103, achieving a rigid connection under the detachable structure of the four components.
[0046] As an example, the fastener 301 is a screw.
[0047] As an example, the positioning structure 111 is a positioning hole structure that matches the positioning post 201, thereby achieving circumferential positioning of the optical lens 102 and effectively preventing invalid displacement when installing the optical lens 102.
[0048] As an example, the matching of the inner wall shape of the pressure sleeve 104 with the outer wall shape of the lens barrel 105 of the optical lens 102 means that the inner wall of the pressure sleeve and the outer wall of the lens barrel 105 are either interference fit, threaded fit, or anti-rotation structure, in order to enhance the bonding strength and prevent relative rotation between the two.
[0049] As an example, the anti-rotation structure 107 is provided with convex tooth structures on both sides, and the size and shape of the structures on both sides are different. While preventing rotation, it also prevents the optical lens 102 from being installed upside down to a certain extent.
[0050] As an example, the anti-rotation structure 107 and the anti-rotation groove 202 are key and keyway structures.
[0051] To better illustrate the originality of this utility model, the working principle of specific embodiments is described below:
[0052] Example 1:
[0053] The outer wall of the lens barrel is machined with two symmetrical and different raised planes to form an anti-rotation structure, and two cylinders are machined at the same time to form positioning posts.
[0054] The inner bore of the pressure sleeve and the anti-rotation structure are clearance fit;
[0055] Three fixing wings extend radially from the outer side of the pressure sleeve, and each fixing wing is provided with a through hole for placing screws;
[0056] The lamp board is an aluminum substrate, and the aluminum substrate is provided with through holes and positioning structures; the through holes are circular and semi-circular notches that match the threaded posts of the housing; the positioning structures are two small circular notches that match the positioning posts of the optical lens.
[0057] The sensor housing is made of aluminum, with corresponding threaded posts machined inside.
[0058] The inner wall of the pressure sleeve is machined with an anti-rotation structure, and its inner wall shape is perfectly matched with the outer wall of the optical lens barrel, containing two different recessed planes.
[0059] Assembly process design, including:
[0060] First, place the pressure sleeve onto the outer wall of the optical lens barrel to ensure that the anti-rotation structures of both fit together.
[0061] Then, align the through hole of the lamp panel with the threaded post of the housing and pass it through, and attach the lamp panel to the housing;
[0062] Next, the through hole on the pressure sleeve is matched with the threaded post on the housing, and the positioning post of the optical lens is matched with the positioning structure on the lamp plate to complete the initial alignment and circumferential limiting.
[0063] Finally, three screws are threaded through the holes in the fixed wing and screwed into the threaded post of the housing, then tightened to the specified torque using a torque screwdriver. The screw tightening force is evenly converted into vertical pressure on the lamp panel through the pressure sleeve, and the resulting radial contraction force acts like a "clamp" to firmly hold the optical lens, while pressing the optical lens, lamp panel, and housing into a solid whole.
[0064] The above description is only a preferred embodiment of the present utility model. It should be understood that the above description of the embodiments is only used to help understand the method and core idea of the present utility model, and is not intended to limit the protection scope of the present utility model. Any modifications, equivalent substitutions, etc. made within the idea and principle of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A sensor light source module connection structure, characterized in that, include: The components include: lamp panel, optical lens, housing, and pressure sleeve. The outer wall of the lens barrel of the optical lens is provided with an anti-rotation structure and a positioning post; The pressure sleeve is a ring-shaped or cylindrical mechanical component whose inner wall shape matches the outer wall shape of the optical lens barrel, used to fit the optical lens; and is provided with an anti-rotation groove to lock the anti-rotation structure. The outer surface of the pressure sleeve is radially provided with a fixing wing, and the fixing wing is provided with a through hole; The lamp plate is provided with through holes and a positioning structure. The positioning structure matches and positions the optical lens with the positioning post. The lamp plate is then fixed to the housing through the through holes. The housing is provided with threaded posts corresponding to the through holes and the via holes; the via holes are locked by fasteners passing through the threaded posts to achieve pressure sleeve fixation. At this time, the pressure sleeve tightly presses the optical lens and the lamp plate onto the housing.
2. The sensor light source module connection structure according to claim 1, characterized in that, The number of fixed wings is at least one set.
3. The sensor light source module connection structure according to claim 1, characterized in that, The fastener is a screw.
4. The sensor light source module connection structure according to claim 1, characterized in that, The positioning structure is a positioning hole structure that matches the positioning post, thereby achieving circumferential positioning of the optical lens and effectively preventing invalid displacement during the installation of the optical lens.
5. The sensor light source module connection structure according to claim 1, characterized in that, The matching of the inner wall shape of the pressure sleeve with the outer wall shape of the optical lens barrel means that the inner wall of the pressure sleeve is fitted with one of the following: interference fit, threaded fit, or anti-rotation structure, so as to enhance the bonding strength and prevent relative rotation between the pressure sleeve and the optical lens.
6. The sensor light source module connection structure according to claim 1, characterized in that, The anti-rotation structure is as follows: convex tooth structures are set on both sides, and the two sides have different sizes and shapes. While preventing rotation, it also prevents the optical lens from being installed upside down to a certain extent.
7. The sensor light source module connection structure according to claim 1, characterized in that, The anti-rotation structure and anti-rotation groove are key and keyway structures.