Forward assembly splicing type light curtain

Abstract

The utility model, which belongs to the technical field of the light curtain, discloses a front-mounted splicing type light curtain comprising a light curtain module, a protective cover connected below the light curtain module, a function module electrically connected to one side of the light curtain module, and the function module located inside the protective cover. The functional module is located in the protective cover and used for achieving the specific function of the light curtain, a first PCB and a second PCB are arranged in the PC profile, and the first PCB and the second PCB are fixedly installed in the PC profile; the two light curtain modules provide signal processing and control functions for the light curtain, the middle connecting module is located between the two light curtain modules, and the two ends of the middle connecting module are connected with the light curtain modules in a limiting and clamping mode respectively; the protective cover is sleeved outside the PC section bar, and the middle connecting module is located inside the protective cover so as to ensure the integrity and the sealing performance of the whole light curtain structure.

Description

Technical Field

[0001] This utility model relates to the field of light curtains, and more specifically, to a formal splicing light curtain. Background Technology

[0002] In industrial automatic doors, elevator doors, and other similar scenarios, light curtains are widely used for area protection to ensure the safety of objects or personnel when passing through automatic doors or using elevators. With the diversification of industrial environments and the increasing demands for safety, higher requirements are being placed on the performance and structure of light curtains.

[0003] Traditional light curtain structures often have several drawbacks. For example, to achieve a compact mechanical design, the reserved installation space for the light curtain is usually small, requiring a small cross-sectional area and easy installation. Simultaneously, to adapt to outdoor use, the product's protection level and light resistance need to be improved. However, most products on the market currently use a profile with an acrylic lens cover for sealing, which is not very effective. While resin potting provides a better seal, it results in higher overall material costs. Therefore, inventing a modular, modular light curtain to address these issues has become a pressing problem for those skilled in the art. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a standard splicing light curtain, which aims to improve the problem of poor protection effect when using profiles and acrylic mirror covers and the high overall material cost caused by resin potting.

[0005] This utility model is implemented as follows: a standard splicing light curtain, including...

[0006] A light curtain module, with a protective cover connected to its lower part and a functional module electrically connected to one side of the light curtain module, the functional module being located inside the protective cover;

[0007] PC profile, wherein a first PCB board and a second PCB board are respectively disposed inside the PC profile, and the first PCB board and the second PCB board are respectively fixedly installed inside the PC profile;

[0008] An intermediate connecting module is located between the two light curtain modules, and both ends of the intermediate connecting module are respectively limited and snapped into the light curtain modules; the protective cover is sleeved on the outside of the PC profile, and the intermediate connecting module is located inside the protective cover.

[0009] In a preferred embodiment of this utility model, the protective cover is U-shaped, the PC profile is rectangular, and the PC profile is inserted into the protective cover.

[0010] In a preferred embodiment of this utility model, one end of the PC profile is a square end, and an irregularly shaped sealing ring is inserted inside the square end. The irregularly shaped sealing ring limits and seals one end of the light curtain module.

[0011] In a preferred embodiment of this utility model, the PC profile is provided with internal wiring, which is electrically connected to the first PCB board and the second PCB board respectively.

[0012] In a preferred embodiment of this utility model, a round end is inserted into the other end of the PC profile, and the round end includes a single-wire receiving round end, a single-wire transmitting round end, and a double-wire receiving round end.

[0013] In a preferred embodiment of this utility model, the round end is grounded and connected to the protective cover.

[0014] In a preferred embodiment of this utility model, the first PCB board is inserted into an integral extruded PC profile, and the optical components related to the optical axis are integrated within the structure formed by the PCB board and the PC profile.

[0015] In a preferred embodiment of this utility model, O-rings are respectively fitted onto both ends of the intermediate connecting module, and the O-rings abut against the inner walls of the PC profiles at both ends of the intermediate connecting module.

[0016] In a preferred embodiment of this utility model, a motherboard is provided inside the PC profile, the motherboard is electrically connected to the second PCB board, and the motherboard is electrically connected to the light curtain module.

[0017] The beneficial effects of this utility model are as follows: The upright splicing light curtain obtained through the above design achieves a compact overall structure through the rational design of the light curtain module, protective cover, and functional modules. The rectangular PC profile is inserted into the U-shaped protective cover, saving space and meeting the requirements for use in limited installation spaces. Simultaneously, the square and round end designs, as well as the limiting and snap-fit ​​method of the intermediate connecting module for the light curtain module, make the installation of the light curtain more convenient. The first PCB board and the second PCB board are respectively fixedly installed inside the PC profile and electrically connected via ribbon cables. The first PCB board is mainly responsible for the control of the optical axis and signal acquisition, while the second PCB board focuses on further integrating and processing the acquired signals and communicating with other modules. This clear division of labor makes signal processing more efficient and can accurately transmit and process optical axis signals, improving the detection performance of the light curtain. A shaped sealing ring is inserted into the square end to limit and seal one end of the light curtain module; the O-rings fitted at both ends of the intermediate connecting module abut against the inner walls of the PC profiles at both ends, achieving a seal. This multi-layered sealing design effectively prevents external substances such as dust and moisture from entering the light curtain, improving the light curtain's protection level and ensuring that the light curtain can work normally under various environmental conditions. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of one side of the structure provided by an embodiment of the present invention;

[0020] Figure 2 A schematic diagram of the internal structure provided for an embodiment of this utility model;

[0021] Figure 3 A partially enlarged structural schematic diagram provided for an embodiment of this utility model;

[0022] Figure 4 A schematic diagram of the end structure provided for an embodiment of this utility model.

[0023] In the diagram: 100, light curtain module; 200, functional module; 1, square end; 2, irregularly shaped sealing ring; 3, PC profile; 4, PCB board; 5, ribbon cable; 6, PCB board; 7, intermediate connection module; 8, O-ring; 9, main board; 10, round end; 11, protective cover. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0025] Please see Figures 1 to 4 This utility model provides a technical solution: a standard splicing light curtain, including...

[0026] A light curtain module 100 is provided, with a protective cover 11 connected to its lower part. A functional module 200 is electrically connected to one side of the light curtain module 100 and is located inside the protective cover 11. The functional module 200 is located inside the protective cover 11 and is used to realize specific functions of the light curtain, such as detecting specific properties of objects or executing specific operation commands.

[0027] PC profile 3, with a first PCB board 4 and a second PCB board 6 respectively installed inside the PC profile 3; providing signal processing and control functions for the light curtain.

[0028] The intermediate connecting module 7 is located between the two light curtain modules 100, and its two ends are respectively limited and snapped to the light curtain modules 100; the protective cover 11 is sleeved on the outside of the PC profile 3, and the intermediate connecting module 7 is located inside the protective cover 11 to ensure the integrity and sealing of the entire light curtain structure.

[0029] Please see Figures 2 to 4 The protective cover 11 is U-shaped, and the PC profile 3 is rectangular. The PC profile 3 is inserted into the protective cover 11. The insertion design makes the light curtain structure more compact and saves space.

[0030] One end of the PC profile 3 is a square end 1. A shaped sealing ring 2 is inserted inside the square end 1. The shaped sealing ring 2 limits and seals one end of the light curtain module 100, preventing dust, moisture and other external substances from entering the light curtain from this end, ensuring the cleanliness and stability of the internal environment of the light curtain, thereby ensuring the normal operation of the light curtain.

[0031] The PC profile 3 has a ribbon cable 5 inside, which is electrically connected to the first PCB board 4 and the second PCB board 6 respectively. The ribbon cable 5 realizes the signal transmission between the first PCB board 4 and the second PCB board 6, ensuring that the signal can be accurately transmitted between the two PCB boards, thereby ensuring the normal operation of the signal processing and control functions of the light curtain.

[0032] The other end of the PC profile 3 is inserted with a round end 10. The round end 10 includes a single-line receiving round end, a single-line transmitting round end, and a double-line receiving round end. Different types of round ends 10 are used to realize different signal receiving and transmitting functions to meet the needs of the light curtain in different application scenarios. The single-line receiving round end, the single-line transmitting round end, and the double-line receiving round end are installed as needed.

[0033] The round end 10 is grounded to the protective cover 11. This grounding connection can improve the anti-interference capability of the light curtain. When there is electromagnetic interference in the outside, the interference current will flow into the ground through the grounding path, without affecting the signal transmission and processing inside the light curtain, thus ensuring the stability and reliability of the light curtain signal.

[0034] The first PCB board 4 is inserted into the integrated extruded PC profile 3. The optical components related to the optical axis are integrated into the structure formed by the PCB board 4 and the PC profile 3, which makes the number and combination of optical axes more diverse. The position of the optical axis can be flexibly designed according to the requirements, so as to better adapt to different application scenarios and detection requirements and improve the detection performance of the light curtain.

[0035] O-rings 8 are fitted at both ends of the intermediate connecting module 7. The O-rings 8 abut against the inner walls of the PC profiles 3 at both ends of the intermediate connecting module 7. The O-rings 8 achieve a seal between adjacent light curtain modules 100, preventing external substances from entering the interior of the light curtain from the splicing point. Together with the irregular sealing rings 2, they improve the overall sealing performance of the light curtain.

[0036] The PC profile 3 has a motherboard 9 inside, which is electrically connected to the second PCB board 6 and the light curtain module 100. The motherboard 9 plays a core control role in the light curtain system. Through its electrical connection with the second PCB board 6 and the light curtain module 100, it controls and manages the light curtain, coordinates the work between various components, and ensures the normal operation of the light curtain.

[0037] Working principle: The first PCB board 4 in the light curtain module 100 controls the emission and reception of light along the optical axis inside the PC profile 3. When an object blocks the light, the receiving end of the optical axis detects the change in light and converts the light signal into an electrical signal. After preliminary processing and amplification of these electrical signals, the first PCB board 4 transmits them to the second PCB board 6 via the ribbon cable 5.

[0038] The second PCB board 6 further integrates and processes the received signals, extracts relevant information about the object (such as position and shape), and then transmits this information to the main board 9. The main board 9 analyzes and makes decisions based on the received information and communicates with the functional module 200 to control the light curtain and perform related operations (such as triggering the opening or closing of the automatic door).

[0039] The irregularly shaped sealing ring 2, inside the square end 1, limits and seals one end of the light curtain module 100, preventing external substances from entering the light curtain from that end. The O-rings 8 at both ends of the intermediate connecting module 7, by abutting against the inner walls of the PC profiles 3 at both ends, form a seal between adjacent light curtain modules 100, preventing external substances from entering the light curtain from the joint. The round end 10 is grounded to the protective cover 11, making the light curtain system an equipotential body with the ground. When external electromagnetic interference exists, the interference current flows into the ground through the grounding path, without affecting signal transmission and processing inside the light curtain, thus improving the light curtain's anti-interference capability.

[0040] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A type of modular light curtain, characterized in that, include A light curtain module, with a protective cover connected to its lower part and a functional module electrically connected to one side of the light curtain module, the functional module being located inside the protective cover; PC profile, wherein a first PCB board and a second PCB board are respectively disposed inside the PC profile, and the first PCB board and the second PCB board are respectively fixedly installed inside the PC profile; An intermediate connecting module is located between the two light curtain modules, and both ends of the intermediate connecting module are respectively limited and snapped into the light curtain modules; the protective cover is sleeved on the outside of the PC profile, and the intermediate connecting module is located inside the protective cover.

2. The upright splicing light curtain as described in claim 1, characterized in that: The protective cover is U-shaped, and the PC profile is rectangular, with the PC profile inserted inside the protective cover.

3. The upright splicing light curtain as described in claim 1, characterized in that: One end of the PC profile is square, and an irregularly shaped sealing ring is inserted inside the square end. The irregularly shaped sealing ring limits and seals one end of the light curtain module.

4. A modular light curtain as described in claim 1, characterized in that: The PC profile has internal wiring, which is electrically connected to the first PCB board and the second PCB board respectively.

5. A modular light curtain as described in claim 3, characterized in that: The other end of the PC profile is provided with a round end, which includes a single-wire receiving round end, a single-wire transmitting round end, and a dual-wire receiving round end.

6. A modular light curtain as described in claim 5, characterized in that: The round end is connected to the ground of the protective cover.

7. A modular light curtain as described in claim 4, characterized in that: The first PCB board is inserted into an integral extruded PC profile, and the optical components related to the optical axis are integrated within the structure formed by the PCB board and the PC profile.

8. A modular light curtain as described in claim 1, characterized in that: O-rings are fitted onto both ends of the intermediate connecting module, and the O-rings abut against the inner walls of the PC profiles at both ends of the intermediate connecting module.

9. A modular light curtain as described in claim 1, characterized in that: The PC profile has a motherboard inside, which is electrically connected to the second PCB board and the light curtain module.

Images