A linear laser module

Abstract

The application relates to the technical field of linear laser, and discloses a linear laser module, which comprises a linear laser optical module and a plastic shell; the linear laser optical module comprises a light source, a collimating lens and a laser shaping lens; the light source comprises a chip, a substrate and a terminal wire; the plastic shell comprises a first shell and a second shell; a clamping groove is formed in the lower part of the periphery of the first shell; the outer end of the clamping groove extends outwardly through the inner wall of the first shell; a buckle is arranged on the upper part of the periphery of the second shell; the buckle is connected with the clamping groove; the surface of the linear laser optical module is attached to the inner walls of the first shell and the second shell; the first shell and the second shell are connected through the clamping groove and the buckle; no additional complex fixing structure is needed; the assembly operation of the plastic shell is simplified; the two shells can be quickly combined; and the assembly convenience of the linear laser module is effectively improved.

Description

Technical Field

[0001] This invention relates to the field of line laser technology, specifically to a line laser module. Background Technology

[0002] A line laser module is an optical device that achieves positioning, measurement, or scanning functions by emitting a linear laser beam. It is widely used in industrial inspection, 3D modeling, security monitoring, and consumer electronics. The stability of its overall structure and the rationality of its assembly directly affect the laser output accuracy and reliability. The plastic shell, as the core protective and load-bearing component of the line laser module, is used to encapsulate the internal laser emitting components and circuit structure, and plays an important role in ensuring the overall performance of the module.

[0003] Existing line laser modules typically use a two-part shell structure for their housings. To secure these two parts, threaded fasteners are commonly used. This method requires aligning each screw hole and tightening it during assembly. This not only necessitates specialized tools but also increases the risk of misalignment and assembly stalls. Furthermore, the sequential installation of multiple fasteners prolongs the overall assembly process, making the housing assembly cumbersome and impacting the overall production efficiency of the line laser module. Therefore, a new line laser module is proposed. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a line laser module to solve the aforementioned technical problems that make the plastic shell assembly process cumbersome.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a line laser module, comprising: The line laser optical module consists of a light source, a collimating lens, and a laser shaping lens, and the light source includes a chip, a substrate, and terminal lines; The plastic shell includes a first petal shell and a second petal shell. The lower part of the first petal shell is provided with slots around its perimeter. The outer end of the slot extends outward through the inner wall of the first petal shell. The upper part of the second petal shell is provided with buckles around its perimeter. The buckles are engaged with the slots. The surface of the line laser optical module is in contact with the inner walls of the first and second petal shells.

[0006] The collimating lens and the laser shaping lens are brought together by the shape positioning, and then the collimating lens and the laser shaping lens are fixedly connected by adhesive to form a lens module. The lens module and the light source are aligned and adjusted, and the lens module and the light source are fixedly connected by adhesive to form a line laser optical module. The light source is prepared to emit laser through the cooperation of chip, substrate and terminal wire. The first and second petal shells are connected by a slot and a snap fastener, which causes the first and second petal shells to move closer together and close. During the closing process, the line laser optical module is pressed into the plastic shell, so that the surface of the line laser optical module is in contact with the inner walls of the first and second petal shells, thus completing the assembly of the line laser module.

[0007] Preferably, the upper part of the inner cavity of the slot has a vertically opening for a connecting hole, and a plug-in post is slidably connected to the inner cavity of the connecting hole. This structure, by setting a connecting hole in the slot and matching the sliding plug-in post, provides a basic movable component for the positioning and connection of subsequent structures, giving the plug-in post the flexibility of position adjustment and creating conditions for achieving precise fit between structures.

[0008] Preferably, the cross-section of the inner cavity of the connecting hole and the entire plug-in post are both T-shaped, and a horizontal connecting plate is installed between the middle of adjacent plug-in posts. The T-shaped design makes the fit between the connecting hole and the plug-in post more stable, effectively preventing the plug-in post from falling out of the connecting hole; the horizontal connecting plate realizes the linkage control of multiple plug-in posts, avoiding the cumbersome operation of individual posts and improving the synchronization and convenience of structural operation.

[0009] Preferably, a compression spring is vertically installed inside the connecting hole, and the top and bottom ends of the compression spring are tightly fitted with the top of the connecting hole and the top of the plug, respectively. The compression spring provides a continuous elastic force to the plug, ensuring that the plug can be stably maintained in the target position, thus improving the reliability of the structural connection; at the same time, the reset function allows the plug to repeatedly participate in the mating action, enhancing the reusability and ease of operation of the structure.

[0010] Preferably, the upper two sides of the buckle are provided with vertical insertion holes, and the bottom end of the insertion post is inserted into the corresponding insertion hole. The insertion of the insertion post and the insertion hole provides secondary positioning and locking for the buckle, effectively enhancing the stability of the buckle connection, solving the problem of easy loosening of traditional buckles, and improving the connection reliability of the overall structure.

[0011] Preferably, heat dissipation grooves are uniformly formed on the outer circumferential surfaces of the first and second petal shells, and heat dissipation fins are horizontally added to the inner cavity of the heat dissipation grooves. The combined design of heat dissipation grooves and heat dissipation fins significantly improves the heat conduction and heat dissipation efficiency of the first and second petal shells, and can promptly dissipate the heat accumulated in the line laser optical module, avoiding adverse effects of high temperature on module performance.

[0012] Preferably, the inner walls of the first and second petal shells are uniformly provided with vent holes, which surround the linear laser optical module. The vent holes surrounding the linear laser optical module allow for comprehensive capture of heat emitted by the module, providing a preliminary heat dissipation path and facilitating heat dissipation around the module, thus improving the overall heat dissipation effect.

[0013] Preferably, the outer end of the vent extends outward through the inner walls of the first and second petal shells, and the outer end of the vent is connected to the corresponding heat dissipation groove. The connection between the vent and the heat dissipation groove forms a complete heat transfer and dissipation channel, realizing the connection between the heat export from the inside of the line laser optical module and the external dissipation, forming the basis for air convection, further improving heat dissipation efficiency, and ensuring the service life of the module.

[0014] Preferably, the inner walls of the first and second petal shells are uniformly provided with elastic buffer grooves laterally, and the elastic buffer grooves surround the entire perimeter of the line laser optical module. The elastic buffer grooves can effectively absorb the impact of external forces on the line laser optical module, reduce the direct impact of the impact force on the module, prevent the module from being damaged due to rigid force, and play a role in protecting the module structure.

[0015] Preferably, the inner cavity of the elastic buffer groove is laterally fitted with elastic ribs, and the elastic ribs are in close contact with the surface of the line laser optical module. The close contact between the elastic ribs and the line laser optical module not only achieves stable positioning of the module, but also further buffers external forces through its own elastic deformation, avoiding module damage caused by hard contact, and improving the safety and stability of module installation.

[0016] Compared with the prior art, the present invention provides a line laser module with the following advantages: In this line laser module, the first and second halves of the plastic shell are connected by slots and buckles. This connection method simplifies the assembly of the plastic shell and allows for quick assembly of the two halves without the need for additional complex fixing structures, thus improving the ease of assembly of the line laser module. The outer end of the slot of the first petal extends outward through its inner wall. This structure provides a clear installation guide for the buckle of the second petal, enabling the buckle to be accurately aligned with the slot and engaged, ensuring the connection accuracy between the first and second petal, and thus enhancing the overall structural stability of the plastic shell. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present invention; Figure 2 This is a schematic diagram of the separation structure in Embodiment 1 of the present invention; Figure 3 This is a schematic cross-sectional view of the card slot structure of the present invention; Figure 4 This is a schematic diagram of the second valve shell and its connection structure of the present invention; Figure 5 This is a schematic diagram of the structure of Embodiment 2 of the present invention; Figure 6 This is an exploded structural diagram of Embodiment 2 of the present invention; Figure 7 This is an exploded right-side view of Embodiment 2 of the present invention; Figure 8 This is a schematic diagram of the structure of Embodiment 3 of the present invention; Figure 9 This is a cross-sectional structural diagram of Embodiment 3 of the present invention.

[0018] In the diagram: 1. Laser shaping lens; 2. Collimating lens; 3. Chip; 4. Substrate; 5. Terminal wire; 6. Plastic shell; 7. First lobe shell; 8. Second lobe shell; 9. Slot; 10. Buckle; 11. Horizontal connecting plate; 12. Heat dissipation groove; 13. Heat dissipation fins; 14. Vent hole; 15. Elastic buffer groove; 16. Elastic rib; 17. Insertion hole; 18. Insertion post; 19. Compression spring; 20. Connecting hole. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] This invention provides a technical solution, a line laser module, comprising: (see details) Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Figure 9 A linear laser optical module, comprising a light source, a collimating lens 2 and a laser shaping lens 1, wherein the light source includes a chip 3, a substrate 4 and terminal lines 5; The plastic shell 6 includes a first petal shell 7 and a second petal shell 8. The lower part of the first petal shell 7 is provided with slots 9 around its perimeter. The outer end of the slots 9 extends outward through the inner wall of the first petal shell 7. The upper part of the second petal shell 8 is provided with buckles 10, which are connected to the slots 9. The surface of the line laser optical module is in contact with the inner walls of the first petal shell 7 and the second petal shell 8.

[0021] The two plastic shells 6 are closed by the locking connection between the slot 9 and the buckle 10, which eliminates the need for complex positioning structures and adjustment parts, simplifying the assembly operation and enabling rapid assembly of the line laser module, thus improving assembly efficiency. First, the collimating lens 2 and the laser shaping lens 1 are fixed by adhesive bonding. Then, the lens module is aligned and fixed with the light source. This reduces the dependence on the processing precision of the plastic shell 6 in the traditional design, ensures the consistency of the optical axis of the collimating lens 2, the laser shaping lens 1 and the light source, and thus improves the optical performance of the line laser module. After the plastic shell 6 is closed by the first shell 7 and the second shell 8, it presses the laser optical module of the clamping line, and is fixed by the locking of the slot 9 and the buckle 10, so that the overall structure is stable and the displacement of the parts during use is avoided, which will affect the use effect.

[0022] Please see Figure 2 and Figure 3 The upper part of the inner cavity of the slot 9 has a vertically opening of a connecting hole 20, and a plug-in post 18 is slidably connected to the inner cavity of the connecting hole 20. The connecting hole 20 provides sliding space for the plug-in post 18, which can slide within the inner cavity of the connecting hole 20 in the upper part of the inner cavity of the slot 9.

[0023] The cross-section of the inner cavity of the connecting hole 20 and the entire plug-in post 18 are T-shaped, and a horizontal connecting plate 11 is installed between the middle of adjacent plug-in posts 18. The horizontal connecting plate 11 connects the adjacent plug-in posts 18, causing multiple plug-in posts 18 to slide synchronously in the inner cavity of the corresponding T-shaped connecting hole 20.

[0024] A compression spring 19 is vertically installed inside the cavity of the connecting hole 20, and the top and bottom ends of the compression spring 19 are tightly fitted with the top of the cavity of the connecting hole 20 and the top of the insertion post 18, respectively. The compression spring 19 drives the insertion post 18 to move vertically inside the cavity of the connecting hole 20 through its own elastic force; when the insertion post 18 is compressed by an external force, the compression spring 19 can drive the insertion post 18 to return to its original position when the elastic force is restored.

[0025] Please see Figure 4 The upper two sides of the buckle 10 are vertically provided with insertion holes 17, and the bottom end of the insertion post 18 is inserted into the corresponding insertion hole 17. Under the action of the connecting hole 20 and the compression spring 19, the insertion post 18 moves towards the buckle 10 and inserts into the corresponding insertion holes 17 on the upper two sides of the buckle 10 to achieve insertion connection.

[0026] Please see Figure 2 The outer circumferential surfaces of the first and second shell segments 7 and 8 are uniformly provided with heat dissipation grooves 12, and heat dissipation fins 13 are horizontally added to the inner cavity of the heat dissipation grooves 12. The heat generated by the line laser optical module is transferred to the first and second shell segments 7 and 8, and the heat dissipation grooves 12 expand the heat dissipation area. The heat dissipation fins 13 drive the heat to dissipate quickly from the inner cavity of the heat dissipation grooves 12 to the outside.

[0027] Ventilation holes 14 are evenly distributed on the inner walls of the first and second shells 7 and 8, and these ventilation holes 14 surround the linear laser optical module. The heat generated by the linear laser optical module diffuses to the surrounding area, and the ventilation holes 14 surrounding it form a heat flow channel, causing heat to flow within the ventilation holes 14.

[0028] The outer end of the vent 14 extends outward through the inner wall of the first petal shell 7 and the second petal shell 8, and the outer end of the vent 14 is connected to the corresponding heat dissipation groove 12. During the heat flow process, the heat inside the vent 14 is transferred from the vent 14 to the heat dissipation groove 12 through the heat dissipation groove 12 connected to the outer end of the vent 14, and is finally dissipated through the heat dissipation fins 13.

[0029] Please see Figure 4 The inner walls of the first lobe shell 7 and the second lobe shell 8 are uniformly provided with elastic buffer grooves 15 in a transverse direction, and the elastic buffer grooves 15 surround the line laser optical module. When the line laser optical module is impacted by an external force, the elastic buffer grooves 15 surrounding it provide deformation space, causing the elastic buffer grooves 15 to undergo adaptive deformation to buffer the external force.

[0030] An elastic rib 16 is horizontally installed in the inner cavity of the elastic buffer groove 15, and the elastic rib 16 is tightly attached to the surface of the line laser optical module. When the line laser optical module comes into contact with the elastic rib 16, it causes the elastic rib 16 to undergo elastic deformation in the inner cavity of the elastic buffer groove 15. The elastic rib 16 tightly adheres to the surface of the line laser optical module through the reaction force generated by the deformation.

[0031] Example 1: A line laser optical module, comprising a light source, a collimating lens 2 and a laser shaping lens 1, wherein the light source includes a chip 3, a substrate 4 and terminal lines 5; The plastic shell 6 includes a first petal shell 7 and a second petal shell 8. The lower part of the first petal shell 7 is provided with slots 9 around its perimeter. The outer end of the slots 9 extends outward through the inner wall of the first petal shell 7. The upper part of the second petal shell 8 is provided with buckles 10, which are connected to the slots 9. The surface of the line laser optical module is in contact with the inner walls of the first petal shell 7 and the second petal shell 8.

[0032] The upper part of the inner cavity of the slot 9 is provided with a vertical connecting hole 20, and the inner cavity of the connecting hole 20 is slidably connected with a plug post 18.

[0033] The cross-section of the inner cavity of the connecting hole 20 and the entire plug post 18 are T-shaped, and a horizontal connecting plate 11 is installed between the middle of adjacent plug posts 18.

[0034] A compression spring 19 is vertically installed in the inner cavity of the connecting hole 20, and the top and bottom ends of the compression spring 19 are tightly fitted with the top of the inner cavity of the connecting hole 20 and the top of the plug post 18, respectively.

[0035] The upper two sides of the buckle 10 are vertically provided with insertion holes 17, and the bottom end of the insertion post 18 is inserted and connected to the corresponding insertion hole 17.

[0036] The outer circumferential surfaces of the first shell 7 and the second shell 8 are evenly provided with heat dissipation grooves 12, and heat dissipation fins 13 are added laterally to the inner cavity of the heat dissipation grooves 12.

[0037] The inner walls of the first lobe shell 7 and the second lobe shell 8 are uniformly provided with ventilation holes 14, and the ventilation holes 14 surround the line laser optical module.

[0038] The outer end of the vent 14 extends outward through the inner wall of the first petal shell 7 and the second petal shell 8, and the outer end of the vent 14 is connected to the corresponding heat dissipation groove 12.

[0039] The inner walls of the first lobe shell 7 and the second lobe shell 8 are uniformly provided with elastic buffer grooves 15 in a transverse direction, and the elastic buffer grooves 15 surround the line laser optical module.

[0040] The inner cavity of the elastic buffer groove 15 is horizontally fitted with an elastic rib 16, and the elastic rib 16 is tightly fitted with the surface of the line laser optical module.

[0041] The collimating lens 2 and the laser shaping lens 1 are brought into contact with each other by the shape positioning, and then the collimating lens 2 and the laser shaping lens 1 are fixedly connected by glue to form a lens module. This lens module is then aligned and adjusted with the light source and glued together. The lens module and the light source are aligned and adjusted. The light source is prepared to emit laser through the cooperation of chip 3, substrate 4 and terminal line 5. Then, the lens module and the light source are fixedly connected by adhesive to form a line laser optical module. The first petal shell 7 is connected to the second petal shell 8 by the slot 9 and the buckle 10, which causes the first petal shell 7 and the second petal shell 8 to move closer to each other and close. During the closing process, the line laser optical module is pressed into the plastic shell 6, so that the surface of the line laser optical module is in contact with the inner wall of the first petal shell 7 and the second petal shell 8. The horizontal connecting plate 11 connects adjacent plugs 18, causing multiple plugs 18 to slide synchronously within the corresponding T-shaped connecting holes 20. The compression spring 19, through its own elastic force, causes the plugs 18 to move vertically within the connecting holes 20. Driven by the connecting holes 20 and the compression spring 19, the plugs 18 move towards the buckle 10 and insert into the corresponding plug holes 17 on both sides of the upper part of the buckle 10, thus achieving insertion and connection. When the plugs 18 are compressed by external force, the compression spring 19 can reset the plugs 18 when the elastic force recovers. The heat generated by the line laser optical module is transferred to the first lobe shell 7 and the second lobe shell 8. The heat generated by the line laser optical module diffuses to the surroundings. The vent holes 14 around it form a heat flow channel, which drives the heat to flow in the vent holes 14. During the flow, the heat in the vent holes 14 is transferred from the vent holes 14 to the heat dissipation grooves 12 that are connected to the outer end of the vent holes 14. The heat dissipation fins 13 drive the heat to dissipate quickly from the inner cavity of the heat dissipation grooves 12 to the outside. When the line laser optical module is impacted by an external force, the elastic buffer groove 15 surrounding it provides deformation space, causing the elastic buffer groove 15 to undergo adaptive deformation to buffer the external force; when the line laser optical module comes into contact with the elastic protrusion 16, the elastic protrusion 16 undergoes elastic deformation in the cavity of the elastic buffer groove 15, and the elastic protrusion 16 tightly adheres to the surface of the line laser optical module through the reaction force generated by the deformation. Example 2: A line laser optical module, comprising a light source, a collimating lens 2 and a laser shaping lens 1, wherein the light source includes a chip 3, a substrate 4 and terminal lines 5; The plastic shell 6 includes a first lobe shell 7 and a second lobe shell 8, and the surface of the line laser optical module is attached to the inner walls of the first lobe shell 7 and the second lobe shell 8. First, the collimating lens 2 and the laser shaping lens 1 are positioned by shape and then glued together to form a lens module. Then, this lens module is aligned and adjusted with the light source and glued together. The line laser optical module is installed into the plastic shell 6. The first lobe shell 7 and the second lobe shell 8 are designed front and back on the plastic shell 6. The joint of the first lobe shell 7 and the second lobe shell 8 is reserved with a positioning structure. After positioning, they are fixed and connected into a whole by glue. Example 3: A plastic shell 6, and a light source, a collimating lens 2 and an optical shaping lens disposed in the inner cavity of the plastic shell 6, wherein the light source includes a chip 3, a substrate 4 and a terminal line 5, and the collimating lens 2 and the plastic shell 6 are integrally molded. The collimating lens 2 and the plastic shell 6 are integrally formed into a single lens. First, the optical shaping lens is installed into the single lens and glued together to form a lens module. Then, the lens module and the light source are aligned and adjusted. After the adjustment is completed, they are glued together.

[0042] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0043] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A line laser module, characterized in that, include: The linear laser optical module comprises a light source, a collimating lens (2) and a laser shaping lens (1), and the light source includes a chip (3), a substrate (4) and terminal wires (5). The plastic shell (6) includes a first petal shell (7) and a second petal shell (8), and the lower part of the first petal shell (7) is provided with slots (9) around the perimeter. The outer end of the slots (9) extends outward through the inner wall of the first petal shell (7), and buckles (10) are installed around the upper part of the second petal shell (8). The buckles (10) are connected to the slots (9). The surface of the line laser optical module is in contact with the inner walls of the first petal shell (7) and the second petal shell (8).

2. The line laser module according to claim 1, characterized in that: The card slot (9) has a vertically opening at the upper part of the inner cavity with a connecting hole (20), and the inner cavity of the connecting hole (20) is slidably connected with a plug post (18).

3. A line laser module according to claim 2, characterized in that: The inner cross-section of the connecting hole (20) and the entire plug (18) are T-shaped, and a horizontal connecting plate (11) is installed between the middle of adjacent plugs (18).

4. A line laser module according to claim 3, characterized in that: A compression spring (19) is vertically installed in the inner cavity of the connecting hole (20), and the top and bottom ends of the compression spring (19) are tightly fitted with the top of the inner cavity of the connecting hole (20) and the top of the plug (18), respectively.

5. A line laser module according to claim 4, characterized in that: The buckle (10) has vertically opened insertion holes (17) on both sides of its upper part, and the bottom end of the insertion post (18) is inserted and connected to the corresponding insertion hole (17).

6. A line laser module according to claim 1, characterized in that: The outer circumferential surfaces of the first petal shell (7) and the second petal shell (8) are uniformly provided with heat dissipation grooves (12), and heat dissipation fins (13) are added laterally to the inner cavity of the heat dissipation grooves (12).

7. A line laser module according to claim 6, characterized in that: The inner walls of the first valve shell (7) and the second valve shell (8) are uniformly provided with ventilation holes (14), and the ventilation holes (14) surround the line laser optical module.

8. A line laser module according to claim 7, characterized in that: The outer end of the vent (14) extends outward through the inner wall of the first valve shell (7) and the second valve shell (8), and the outer end of the vent (14) is connected to the corresponding heat dissipation groove (12).

9. A line laser module according to claim 8, characterized in that: The inner walls of the first lobe shell (7) and the second lobe shell (8) are uniformly provided with elastic buffer grooves (15) in the transverse direction, and the elastic buffer grooves (15) surround the line laser optical module.

10. A line laser module according to claim 9, characterized in that: The inner cavity of the elastic buffer groove (15) is horizontally fitted with an elastic rib (16), and the elastic rib (16) is tightly fitted with the surface of the line laser optical module.

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