Optical coupler capable of shading light

Abstract

The utility model discloses an optical coupler capable of shading, which relates to the technical field of optical couplers and comprises an optical coupler, a first light-blocking sleeve and a second light-blocking sleeve, the first light-blocking sleeve and the second light-blocking sleeve are sleeved on the outer side of the optical coupler, the first light-blocking sleeve and the second light-blocking sleeve are arranged in a matched mode, and a plurality of connecting grooves are formed in the sides, close to each other, of the first light-blocking sleeve and the second light-blocking sleeve. A plurality of pins are fixedly arranged on the two sides of the optical coupler and matched with the connecting grooves, a connecting ring is fixedly arranged on the outer wall of the first light blocking sleeve, a connecting hole is formed in the side wall of the connecting ring, an inserting block is fixedly arranged on the outer wall of the second light blocking sleeve, a cavity is formed in the inserting block, and the inserting block is matched with the connecting ring in an inserted mode. And a clamping positioning mechanism is arranged in the cavity. According to the optical coupler, the first light blocking sleeve, the second light blocking sleeve, the connecting groove, the connecting ring, the insertion block and the clamping positioning mechanism provided by the utility model, the light blocking sleeves can be rapidly installed on the outer side of the optical coupler, the optical coupler does not need to be disassembled, and the light blocking effect and the operation convenience are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of optical couplers, in particular to an optical coupler capable of shielding light. Background Art

[0002] An optocoupler, also known as a photoelectric coupling element, an optical isolator or a photoelectric isolator, or simply an optocoupler, is a semiconductor optoelectronic device that uses light as a medium to transmit electrical signals.

[0003] After searching, the patent number CN213424972U discloses a light-shielding optical coupler. When the optical coupler is suspended in the air, the four side walls and the bottom of the optical coupler body can be covered by the light-blocking sleeve to prevent the light emitted by other light-emitting elements on the PCB board from interfering with the receiving signal of the optical coupler. When the optical coupler needs to be welded close to the PCB board, the bottom layer can be removed to make the optical coupler close to the printed surface of the PCB board.

[0004] However, when the above-mentioned optical coupler is in use, the outer light shielding sleeve is integrally arranged, which makes it easy to be blocked by the pins when installing the optical coupler. If the light shielding sleeve is installed, the pins need to be removed, which reduces the use effect of the optical coupler. Utility Model Content

[0005] In view of the problems existing in the above-mentioned existing light-shielding optical coupler, the present utility model is proposed.

[0006] Therefore, the utility model aims to provide a light-shielding optical coupler, which solves the problem that the outer light-blocking sleeve of the optical coupler is integrally arranged when in use, resulting in easy obstruction by pins when the optical coupler is installed.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A light-shielding optical coupler comprises an optical coupler and two first light-blocking sleeves and a second light-blocking sleeve sleeved outside the optical coupler, wherein the first light-blocking sleeve and the second light-blocking sleeve are arranged in cooperation with each other and a plurality of connecting grooves are provided on the adjacent sides, and a plurality of pins are fixedly provided on both sides of the optical coupler, and the pins are arranged in cooperation with the connecting grooves;

[0009] A connecting ring is fixedly provided on the outer wall of the first light blocking sleeve, a connecting hole is provided on the side wall of the connecting ring, an insert block is fixedly provided on the outer wall of the second light blocking sleeve, a cavity is provided inside the insert block, the insert block is plug-fitted with the connecting ring, and a snap-fit ​​positioning mechanism is provided inside the cavity.

[0010] Preferably, the snap-fit ​​positioning mechanism includes a snap block, a first spring is fixedly provided on the inner wall of the cavity, the snap block is fixedly connected to the end of the first spring, a through hole is opened on the side wall of the cavity to cooperate with the snap block, and the snap block is arranged in coordination with the connecting hole.

[0011] Preferably, the blocking block is a wedge-shaped block.

[0012] Preferably, the interiors of the plurality of connection grooves are filled with sealant, and the sealant is arranged in cooperation with the pins.

[0013] Furthermore, a bottom cover is slidably penetrated through the lower end of the inner wall of the second light blocking sleeve, a sliding tube is fixedly provided on the outer wall of the bottom cover, a positioning rod is slidably penetrated through the inner wall of the sliding tube, a plurality of positioning holes are arranged at intervals on the outer wall of the second light blocking sleeve and are matched with the positioning rod for insertion, a second spring is sleeved on one end of the positioning rod close to the sliding tube, and both ends of the second spring are respectively fixedly connected to the sliding tube and the positioning rod.

[0014] Preferably, the positioning rod is arranged in a U shape.

[0015] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0016] 1. The utility model, through the optical coupler, the first light blocking sleeve, the second light blocking sleeve, the connecting groove, the connecting ring, the plug block and the clamping positioning mechanism, can quickly install the light blocking sleeve on the outside of the optical coupler without disassembling the optical coupler, thereby improving the shading effect and the convenience of operation.

[0017] 2. The utility model is provided with a bottom cover, a positioning hole, a positioning rod, a sliding tube and a second spring, so that after the pin is connected to the PCB, the height of the bottom cover can be adjusted according to the distance between the PCB board and the optical coupler, so that the optical coupler can contact with the PCB and improve the stability of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0019] Figure 1 It is a structural schematic diagram of the utility model;

[0020] Figure 2 This is a schematic diagram of the internal structure of the plug block of the utility model;

[0021] Figure 3It is a side structural schematic diagram of the positioning rod, the sliding tube and the second spring of the utility model.

[0022] Description of reference numerals:

[0023] 1. Optocoupler; 2. First light-blocking sleeve; 3. Second light-blocking sleeve; 4. Connecting groove; 5. Pin; 6. Connecting ring; 7. Insert block; 8. Clamp block; 9. First spring; 10. Sealant; 11. Bottom cover; 12. Sliding tube; 13. Positioning rod; 14. Positioning hole; 15. Second spring. DETAILED DESCRIPTION

[0024] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0025] The utility model embodiment discloses a light-shielding optical coupler.

[0026] The utility model provides Figure 1-3 The light-shielding optical coupler shown includes an optical coupler 1 and two first light-blocking sleeves 2 and second light-blocking sleeves 3 which are sleeved on the outside of the optical coupler 1. The first light-blocking sleeve 2 and the second light-blocking sleeve 3 are arranged in coordination with each other, and a plurality of connecting grooves 4 are provided on the adjacent sides. A plurality of pins 5 are fixedly provided on both sides of the optical coupler 1, and the pins 5 are arranged in coordination with the connecting grooves 4. The interiors of the plurality of connecting grooves 4 are filled with sealant 10, and the sealant 10 is arranged in coordination with the pins 5. A connecting ring 6 is fixedly provided on the outer wall of the first light-blocking sleeve 2, and a connecting hole is provided on the side wall of the connecting ring 6. An insert 7 is fixedly provided on the outer wall of the second light-blocking sleeve 3.

[0027] When blocking light for the optical coupler 1, the first light blocking sleeve 2 and the second light blocking sleeve 3 are covered on the outside of the optical coupler 1 from both sides of the optical coupler 1. At this time, the light blocking sleeve can be installed without removing the pin 5. Then, the plug 7 is inserted into the connecting ring 6 to complete the connection between the first light blocking sleeve 2 and the second light blocking sleeve 3. Then, the sealant 10 is filled in the connecting groove 4 to seal the connecting position of the pin 5 and the light blocking sleeve, thereby improving the light blocking effect of the first light blocking sleeve 2 and the second light blocking sleeve 3 on the optical coupler 1.

[0028] In order to ensure that the insert block 7 can be stably inserted into the connecting ring 6 after the first light blocking sleeve 2 and the second light blocking sleeve 3 are connected, as shown in FIG. Figure 1-2 As shown, a cavity is provided inside the plug block 7, and the plug block 7 is plugged into and matched with the connecting ring 6. A snap-fit ​​positioning mechanism is provided inside the cavity, and the snap-fit ​​positioning mechanism includes a snap block 8, which is a wedge-shaped block. A first spring 9 is fixedly provided on the inner wall of the cavity, and the snap block 8 is fixedly connected to the end of the first spring 9. A through hole is provided on the side wall of the cavity to match the snap block 8, and the snap block 8 is matched with the connecting hole.

[0029] When the first light blocking sleeve 2 and the second light blocking sleeve 3 are in contact, the insert block 7 is inserted into the connecting ring 6. At this time, the inclined surface of the block 8 is pushed to squeeze the first spring 9. When the block 8 and the connecting hole are on the same horizontal line, the block 8 rebounds and is inserted into the connecting hole through the elastic force of the first spring 9 to fix the position of the insert block 7, thereby completing the connection between the first light blocking sleeve 2 and the second light blocking sleeve 3.

[0030] In order to make the optical coupler 1 contact with the PCB board and improve the stability of the optical coupler 1, Figure 1 and Figure 3 As shown, a bottom cover 11 is slidably penetrated through the lower end of the inner wall of the second light blocking sleeve 3, a sliding tube 12 is fixedly provided on the outer wall of the bottom cover 11, a positioning rod 13 is slidably penetrated through the inner wall of the sliding tube 12, the positioning rod 13 is U-shaped, a plurality of positioning holes 14 are arranged at intervals on the outer wall of the second light blocking sleeve 3 and cooperate with the positioning rod 13 to be inserted, a second spring 15 is sleeved on one end of the positioning rod 13 close to the sliding tube 12, and the two ends of the second spring 15 are respectively fixedly connected to the sliding tube 12 and the positioning rod 13.

[0031] When the first light blocking sleeve 2 and the second light blocking sleeve 3 are connected to the optical coupler 1, and the pin 5 is connected to the PCB board, the positioning rod 13 is pulled according to the distance between the optical coupler 1 and the PCB board, so that the positioning rod 13 slides along the sliding tube 12 and the second spring 15 is stretched at the same time, and then the position of the bottom cover 11 is moved and contacted with the PCB board, and then the positioning rod 13 is released. Under the elastic force recovery of the second spring 15, the positioning rod 13 is inserted into the positioning hole 14 on the outside of the second light blocking sleeve 3 to complete the position fixation of the bottom cover 11. At this time, the optical coupler 1 can be stably supported when the bottom cover 11 is in contact with the PCB board.

[0032] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A light-shielding optical coupler, comprising an optical coupler (1) and two first light-shielding sleeves (2) and a second light-shielding sleeve (3) sleeved outside the optical coupler (1), characterized in that: The first light-blocking sleeve (2) and the second light-blocking sleeve (3) are arranged in coordination, and a plurality of connection grooves (4) are provided on the adjacent sides; a plurality of pins (5) are fixedly provided on both sides of the optical coupler (1), and the pins (5) are arranged in coordination with the connection grooves (4); A connecting ring (6) is fixedly provided on the outer wall of the first light-blocking sleeve (2), and a connecting hole is provided on the side wall of the connecting ring (6). An insert block (7) is fixedly provided on the outer wall of the second light-blocking sleeve (3), and a cavity is provided inside the insert block (7). The insert block (7) is plug-fitted with the connecting ring (6), and a snap-fit ​​positioning mechanism is provided inside the cavity.

2. The light-shielding optical coupler according to claim 1, characterized in that: The clamping and positioning mechanism comprises a clamping block (8), a first spring (9) is fixedly provided on the inner wall of the cavity, the clamping block (8) is fixedly connected to the end of the first spring (9), a through hole for matching the clamping block (8) is opened on the side wall of the cavity, and the clamping block (8) is matched with the connecting hole.

3. The light-shielding optical coupler according to claim 2, characterized in that: The clamping block (8) is a wedge-shaped block.

4. The light-shielding optical coupler according to claim 1, characterized in that: The interior of the plurality of connection grooves (4) is filled with sealant (10), and the sealant (10) is arranged in cooperation with the pins (5).

5. The light-shielding optical coupler according to claim 1, characterized in that: A bottom cover (11) is slidably inserted into the lower end of the inner wall of the second light-blocking sleeve (3); a sliding tube (12) is fixedly installed on the outer wall of the bottom cover (11); a positioning rod (13) is slidably inserted into the inner wall of the sliding tube (12); a plurality of positioning holes (14) are arranged at intervals on the outer wall of the second light-blocking sleeve (3) and are adapted to be inserted into the positioning rod (13); a second spring (15) is sleeved on one end of the positioning rod (13) close to the sliding tube (12); and two ends of the second spring (15) are respectively fixedly connected to the sliding tube (12) and the positioning rod (13).

6. The light-shielding optical coupler according to claim 5, characterized in that: The positioning rod (13) is arranged in a U shape.

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