Light coupling tube with hollowed-out groove
By designing a hollowed-out groove and limiting components in the optocoupler tube, the problem of cumbersome optocoupler information inspection in traditional optocoupler tubes is solved, enabling rapid inspection and stable transportation, and reducing damage risks and costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-21
- Publication Date
- 2026-06-19
AI Technical Summary
The closed design of traditional optocoupler tubes makes the inspection of optocoupler product information cumbersome and affects work efficiency.
The design incorporates a cutout groove on the top of the tube body for observing the markings on the top surface of the optocoupler. A clearance groove is provided at the bottom of the cross-section to accommodate the pins. A limiting component secures the optocoupler to prevent wobbling, and a boss provides elastic cushioning.
It enables rapid inspection of optocoupler information, avoids pin deformation and package damage, improves transportation stability and structural reliability, and reduces manufacturing costs.
Smart Images

Figure CN224376492U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of optical coupler tube technology, and in particular to an optical coupler tube with a hollowed-out groove. Background Technology
[0002] Traditional optocoupler tubes use a fully enclosed plastic tube design. The optocouplers are carefully placed inside this tube and safely delivered to the end-user. However, in actual operation, after the optocouplers are placed in this fully enclosed plastic tube and the production process is completed, a crucial step must be taken before official shipment: reconfirming the product information of the optocouplers. This product information is usually set on the top of the optocouplers in the form of laser markings, containing a series of key information such as model number and batch number. In order to accurately observe and verify this information, the staff has to remove the optocouplers one by one from the fully enclosed plastic tube. This process is not only cumbersome but also greatly affects work efficiency, making the overall operation process relatively inefficient and time-consuming. Utility Model Content
[0003] To address the shortcomings of existing technologies, this utility model provides an optical coupler tube with a hollowed-out groove, which solves the problem that currently, when inspecting the product information markings on the optical couplers located inside the optical coupler tube, it is necessary to remove the optical couplers from the tube, which is quite cumbersome.
[0004] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a photocoupler tube with a hollowed-out groove, comprising a tube body with at least one open end for inserting the photocoupler, the bottom of the cross-section of the tube body is provided with two clearance grooves for placing the left and right pins of the photocoupler respectively, the upper end of the cross-section of the tube body is provided with a limiting member for restricting the left and right swaying of the photocoupler, and the top of the tube body is provided with a hollowed-out groove for observing the markings on the top surface of the photocoupler.
[0005] Preferably, there are two limiting members, which are respectively disposed on the inner walls of the left and right sides of the upper end of the cross-section of the material tube body.
[0006] Preferably, the limiting member is L-shaped, and both ends of the limiting member are fixed to the inner wall of the cross-section of the material tube body.
[0007] Preferably, the hollowed-out groove is located between two limiting members, and one end of each of the two limiting members is located at the hollowed-out groove.
[0008] Preferably, the bottom of the cross-section of the feed tube body is provided with a boss for placing an optocoupler.
[0009] Preferably, the sidewalls on both sides of the boss are Z-shaped.
[0010] By employing the above technical solution, this utility model provides an optical coupler tube with a hollowed-out groove, which has at least the following beneficial effects:
[0011] 1. This utility model allows operators to directly observe the laser markings containing information such as model number and batch number on the top surface of the optocoupler by opening a hollow groove on the top of the tube body. This eliminates the tedious step of taking out the optocoupler one by one in the traditional process. Combined with the limiting component to stably fix the optocoupler, this design achieves rapid visual inspection of the markings while ensuring that the optocoupler does not shake. It avoids the risk of damage caused by repeated picking and putting, such as bending of the pins or impact of the package body against the tube wall.
[0012] 2. The bottom clearance groove of this utility model is designed to separate and accommodate the pins on both sides of the optocoupler, avoiding pin deformation due to pressure. The Z-shaped sidewall design of the boss provides elastic buffering capacity, which can not only adapt to the dimensional tolerance of the optocoupler package, but also alleviate external squeezing and impact during transportation. When the tube is subjected to external force, the Z-shaped structure absorbs energy through slight deformation, preventing rigid contact damage to the internal chip of the optocoupler, thereby reducing the transportation breakage rate.
[0013] 3. The L-shaped limiting component of this utility model is fixed at both ends to the inner side and top of the pipe wall to form a triangular support structure, which significantly improves the deformation resistance of the hollow groove area and avoids the problem of pipe warping caused by grooving. The design of the boss replacing the solid base reduces the amount of raw materials used, and the hollow space at the bottom is convenient for automated equipment to clamp. The design of the limiting component extending to the edge of the hollow groove further enhances the stability of the hollow groove as an observation window, ensuring that the groove does not deform during long-term use, thus achieving a dual optimization of structural reliability and manufacturing cost. Attached Figure Description
[0014] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:
[0015] Figure 1 This is a schematic diagram of the optocoupler tube of this utility model;
[0016] Figure 2 This is a cross-sectional view of the optical coupler tube of this utility model.
[0017] In the diagram: 1. Material tube body; 2. Clearance groove; 3. Limiting component; 4. Hollowed-out groove; 5. Boss. Detailed Implementation
[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0019] To address the cumbersome technical issue of requiring the removal of the optocoupler from the tube when inspecting product information markings on optocouplers located within the tube, this invention provides an optocoupler tube with a perforated groove. This eliminates the need to remove the optocoupler from the tube to inspect the product information markings. Figure 1 and Figure 2 As shown, the tube body 1 has an opening at at least one end. The optocoupler is inserted into the internal cavity of the tube body 1. The bottom of the cross-section of the tube body 1 is provided with two clearance grooves 2 for placing the left and right pins of the optocoupler respectively. After the optocoupler is placed into the internal cavity of the tube body 1, its left and right pins are respectively placed into the two clearance grooves 2, so that the pins are not subjected to force and avoid deformation due to force during long-term placement. The upper end of the cross-section of the tube body 1 is provided with a limiting member 3 for limiting the left and right swaying of the optocoupler, thereby ensuring the stability of the optocoupler during the transportation process and preventing the optocoupler from being damaged by frequent collisions with the inner wall of the tube body 1 cavity due to swaying. The top of the tube body 1 is provided with a hollow groove 4 for observing the markings on the top surface of the optocoupler, so that employees can directly observe the markings on the surface of the optocoupler through the hollow groove 4 during inspection without having to remove the optocoupler from the tube, which is more convenient and efficient.
[0020] To improve the limiting effect on the optocoupler, two limiting members 3 are provided, which are respectively set on the inner walls of the left and right sides of the upper end of the cross-section of the tube body 1, so as not to touch the optocoupler pins. The upper part of the optocoupler is located between the two limiting members 3, ensuring that the optocoupler is located on the central axis of the optocoupler tube.
[0021] Since the material body 1 has a relatively low strength, the hollowed-out groove 4 at the top of the tube body 1 may cause the tube body 1 to turn outward or inward from the hollowed-out groove 4. This may cause deformation of the tube body 1 itself, which may damage the optocoupler. Therefore, the limiting member 3 is L-shaped, and both ends of the limiting member 3 are fixed to the inner wall of the cross-section of the tube body 1. It is best that the two ends are located on the top wall and inner wall of the tube body 1 respectively to improve its structural rigidity, form a triangular support structure, and prevent deformation. Of course, the limiting member 3 can also be a segmented structure, and it is not necessary to set it on every cross-section.
[0022] To further ensure the deformation resistance of the hollow groove 4 and to ensure that the markings on the optical coupler surface can be observed from the hollow groove 4, the hollow groove 4 is positioned between the two limiting members 3, with one end of the two limiting members 3 located at the hollow groove 4. Thus, the structural strength of the hollow groove 4 is higher through the reinforcement of the material tube body 1 by the limiting members 3, thereby improving the deformation resistance of the hollow groove 4.
[0023] To further save raw materials, the bottom of the cross-section of the tube body 1 is provided with a boss 5 for placing the optocoupler, instead of the original solid structure. The original structure saved costs by slotting the bottom of the tube body 1 to place the pins of the optocoupler. Now, by setting the raised boss 5, the gap between the side wall of the boss 5 and the two side walls of the tube body 1 is used to place the pins of the optocoupler.
[0024] To improve the fixation and protection of the optocoupler on the tube body 1, the side walls on both sides of the boss 5 are Z-shaped, thus giving the side walls on both sides of the boss 5 a certain degree of elasticity. This is because there are certain manufacturing tolerances between the size of the part in the tube body 1 where the optocoupler package is placed and the size of the optocoupler package itself. To ensure that the optocoupler does not shake inside the tube body 1, the size of the part in the tube body 1 where the optocoupler package is placed and the size of the optocoupler package should be as close as possible. However, to prevent the optocoupler from being squeezed by the tube body 1 during interference fit or from being squeezed at the top and bottom of the tube body 1 during transportation, the side walls on both sides of the boss 5 are Z-shaped to have a certain degree of elasticity. This allows the size of the part in the tube body 1 where the optocoupler package is placed to adapt and change elastically within a certain range.
[0025] It should be noted that 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.
[0026] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0027] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A photocoupler tube with a hollowed-out groove, comprising a tube body (1) with at least one open end for inserting a photocoupler, characterized in that, The bottom of the cross-section of the tube body (1) is provided with two clearance grooves (2) for placing the left and right pins of the optocoupler respectively. The upper end of the cross-section of the tube body (1) is provided with a limiting member (3) for limiting the left and right swaying of the optocoupler. The top of the tube body (1) is provided with a hollow groove (4) for observing the top surface markings of the optocoupler.
2. The optocoupler tube according to claim 1, characterized in that, There are two limiting members (3), which are respectively set on the inner walls of the left and right sides of the upper end of the cross-section of the material tube body (1).
3. The optocoupler tube according to claim 2, characterized in that, The limiting member (3) is L-shaped, and both ends of the limiting member (3) are fixed to the inner wall of the cross section of the material tube body (1).
4. The optocoupler tube according to claim 3, characterized in that, The hollow groove (4) is located between two limiting members (3), and one end of the two limiting members (3) is located at the hollow groove (4).
5. The optocoupler tube according to claim 1, characterized in that, The bottom of the cross-section of the material tube body (1) is provided with a boss (5) for placing an optocoupler.
6. The optocoupler tube according to claim 5, characterized in that, The sidewalls on both sides of the boss (5) are Z-shaped.