Connecting device of optical module

Abstract

The utility model discloses a connecting device of an optical module, which comprises an optical module, a connecting device and an optical fiber sensor, the connecting device is connected to one end of the optical module, the optical fiber sensor is installed in the connecting device, and the connecting device comprises a connector body. A first open hole, a second open hole, a guide hole and a limiting hole are sequentially formed in the connector body from left to right, the diameters of the first open hole, the second open hole, the guide hole and the limiting hole are gradually reduced, and a through hole communicated with the limiting hole is formed in the end, away from the first open hole, of the connector body. According to the utility model, the optical fiber sensor can be quickly mounted and dismounted, the mounting is more convenient and efficient, the required operation space is small during mounting, the space utilization rate is improved, an optical joint component is omitted, an insertion core does not need to be ground, the optical fiber can be sheared according to the actual demand, the redundant optical fiber does not need to be arranged and coiled, and the production cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of optical fiber connection, in particular to a connection device for an optical module. Background Art

[0002] At present, most of the fiber optic adapters and connectors used are industry standard adapters and connectors. The optical fibers are connected by the adapter through the open sleeve inside it to ensure the highest connection performance between the fiber optic jumpers. In order to fix it on various panels, a variety of fine fixing flanges are also designed. The conversion adapter can connect different types of fiber optic jumper interfaces, and provides connections between APC end faces. Double or multiple connections can increase the installation density. The fiber optic connector is a device for detachable (movable) connection between optical fibers. It precisely connects the two end faces of the optical fiber so that the light energy output by the transmitting optical fiber can be coupled to the receiving optical fiber to the maximum extent, and the impact on the system caused by its involvement in the optical link is minimized.

[0003] At present, most of the fiber optic connector shells on the market are fixed with matching adapters by means of screw-type joints. Due to its own characteristics, the screw-type locking fixing method requires finger operation space to be reserved around the screwing position of the adapter. In a limited installation space, especially under conditions of high density requirements, operation is very difficult; at the same time, this also leads to low space utilization. In addition, when installing optical fibers, due to different actual conditions at different construction sites, in order to prevent the optical fiber length from failing to meet the actual installation requirements on site, it is often necessary to increase the reserved length of the optical fiber, which results in the need to sort and coil up the excess length of optical fiber, increasing the workload of construction personnel and production costs.

[0004] Therefore, it is particularly important to design a connecting device for an optical module to solve the problems raised by the above-mentioned background technology. Utility Model Content

[0005] 1. Technical problems to be solved by the utility model

[0006] In view of the shortcomings of the prior art, the purpose of the utility model is to provide a connection device for an optical module, which can quickly install and disassemble the optical fiber sensor without the need to perform the grinding process of the core of the optical fiber connector, thereby eliminating an optical connector. The optical fiber can be cut on-site according to actual needs, greatly reducing the installation difficulty and production cost.

[0007] 2. Technical solution

[0008] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0009] A connecting device for an optical module comprises an optical module, a connecting device and an optical fiber sensor, wherein the connecting device is connected to one end of the optical module, and the optical fiber sensor is installed in the connecting device. The connecting device comprises a connector body, and the connector body is provided with a first opening, a second opening, a guide hole and a limit hole with gradually decreasing diameters from left to right, and a through hole communicating with the limit hole is provided at one end of the connector body away from the first opening. One end of the optical fiber sensor passes through the first opening and the second opening and is placed in the guide hole and is installed through a quick-release locking assembly, and the quick-release locking assembly is installed in the first opening.

[0010] Preferably, the quick-release locking assembly includes a fixing part fixedly connected to the first opening, a button connected to one side of the fixing part, and a spring leaf arranged between the fixing part and the button. A through hole for the optical fiber sensor to pass through is opened at the center of the fixing part and the button. The button and the fixing part are slidably fitted together. When the button is not under force, the spring leaf is in an expanded state for clamping on the outside of the optical fiber sensor. When the button is under force and moves toward the fixing part, the spring leaf is in a contracted state and detached from the optical fiber sensor.

[0011] Preferably, one end of the button extends to the outside of the connector body and is provided with an annular pressing ring.

[0012] Preferably, the first opening, the second opening, the guide hole, the limiting hole and the through hole are symmetrically distributed along the central axis of the joint body.

[0013] Preferably, the optical module includes a module body, a mounting cavity is provided inside the module body, a filter is installed inside the mounting cavity, a photodetector is installed on an inner wall of one side of the mounting cavity, a mounting hole is provided at the bottom end of the module body, a light-emitting diode is installed in the mounting hole, the light-emitting diode corresponds to the position of the filter, a connecting hole communicating with the mounting cavity is provided on a side of the module body away from the photodetector, a lens is installed in the connecting hole, and the connecting device is installed in the connecting hole.

[0014] Preferably, the connecting hole includes a first stepped hole and a second stepped hole, the second stepped hole is used to connect the first stepped hole and the mounting cavity, the diameter of the first stepped hole is larger than the diameter of the second stepped hole, the lens is installed in the second stepped hole, the inner wall of the first stepped hole is provided with an internal thread, the outer wall of the joint body is provided with an external thread, and the joint body is installed in the first stepped hole through the external thread and the internal thread.

[0015] Preferably, an O-ring is installed between the joint body and the lens.

[0016] Preferably, a strip-shaped hole is provided in the installation cavity, and the filter is installed in the strip-shaped hole, and the filter forms an angle of 45° with the horizontal plane.

[0017] 3. Beneficial effects

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] The utility model fixes the optical fiber sensor through a quick-release locking assembly composed of a fixing piece, a button and a spring sheet, which can realize rapid installation and removal of the optical fiber sensor, is more convenient and efficient, requires less operating space during installation, improves space utilization, saves an optical connector component, and does not require grinding of the ferrule. The optical fiber can be cut according to actual needs, and there is no need to organize and coil up excess optical fiber, thereby reducing production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall split three-dimensional structure of the connecting device of the optical module;

[0021] Figure 2 It is a cross-sectional structural diagram of the connecting device;

[0022] Figure 3 This is a cross-sectional structural diagram of the optical module.

[0023] In the figure: 1. optical module; 11. module body; 111. mounting cavity; 112. mounting hole; 113. connecting hole; 12. filter; 13. photodetector; 14. light emitting diode; 15. lens; 16. O-ring; 2. connecting device; 21. connector body; 211. first opening; 212. second opening; 213. guide hole; 214. limit hole; 215. through hole; 22. fixing piece; 23. button; 24. reed; 3. optical fiber sensor. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0025] Example:

[0026] See also Figure 1-Figure 3The present embodiment provides a connecting device for an optical module, comprising an optical module 1, a connecting device 2 and an optical fiber sensor 3. The connecting device 2 is connected to one end of the optical module 1, and the optical fiber sensor 3 is installed in the connecting device 2. The connecting device 2 comprises a connector body 21. The connector body 21 is provided with a first opening 211, a second opening 212, a guide hole 213 and a limiting hole 214 with gradually decreasing diameters from left to right. A through hole 215 communicating with the limiting hole 214 is provided at one end of the connector body 21 away from the first opening 211. One end of the optical fiber sensor 3 passes through the first opening 211 and the second opening 212 and is placed in the guide hole 213 and installed through a quick-release locking assembly. The quick-release locking assembly is installed in the first opening 211.

[0027] In this embodiment, if Figure 2 As shown, the quick-release locking assembly includes a fixing member 22 fixedly connected to the first opening 211, a button 23 connected to one side of the fixing member 22, and a spring 24 arranged between the fixing member 22 and the button 23. A through hole for the optical fiber sensor 3 to pass through is opened at the center of the fixing member 22 and the button 23. The button 23 and the fixing member 22 are slidably matched. When the button 23 is not under force, the spring 24 is in an expanded state for clamping on the outside of the optical fiber sensor 3. When the button 23 is forced to move toward the fixing member 22, the spring 24 is in a contracted state and detaches from the optical fiber sensor 3. The optical fiber sensor 3 is fixed by the quick-release locking assembly composed of the fixing member 22, the button 23 and the spring 24, so that the optical fiber sensor 3 can be quickly installed and removed, which is more convenient and efficient. The operating space required for installation is small, the space utilization rate is improved, an optical connector component is saved, and there is no need to grind the ferrule. The optical fiber can be cut according to actual needs, and there is no need to sort and coil the excess optical fiber, thereby reducing the production cost.

[0028] In this embodiment, if Figure 2 As shown, one end of the button 23 extends to the outside of the connector body 21 and is provided with an annular pressing ring, which is integrally formed with the button 23 to facilitate the pressing operation of the button 23 toward the fixing member 22 .

[0029] In this embodiment, if Figure 2 As shown, the first opening 211, the second opening 212, the guide hole 213, the limiting hole 214 and the through hole 215 are all symmetrically distributed along the central axis of the connector body 21, wherein the diameter of the guide hole 213 is slightly larger than the diameter of the optical fiber sensor 3, and the diameter of the limiting hole 214 is slightly smaller than the diameter of the optical fiber sensor 3, and is used to limit the optical fiber sensor 3 to be installed in the guide hole 213.

[0030] In this embodiment, if Figure 3As shown, the optical module 1 includes a module body 11, a mounting cavity 111 is provided inside the module body 11, a filter 12 is installed inside the mounting cavity 111, a strip hole is provided inside the mounting cavity 111, the filter 12 is installed in the strip hole, the filter 12 is at an angle of 45° with the horizontal plane, a photodetector 13 is installed on the inner wall of one side of the mounting cavity 111, a mounting hole 112 is provided at the bottom end of the module body 11, a light emitting diode 14 is installed in the mounting hole 112, and the position of the light emitting diode 14 corresponds to that of the filter 12, a connecting hole 113 communicating with the mounting cavity 111 is provided on one side of the module body 11 away from the photodetector 13, a lens 15 is installed in the connecting hole 113, and a connecting device 2 is arranged Installed in the connecting hole 113, a fixed wavelength light beam is emitted by the light emitting diode 14 as an excitation light source, and the light source signal is filtered by the filter 12 so that the light wave of the corresponding wavelength is reflected to the lens 15. The fluorescent substance in the optical fiber on the connecting device 2 is excited and will transition from a low energy state to a high energy state, and then return to a low energy state from a high energy excited state. In this process, a wave longer than the wavelength of the excited state will be emitted. The light wave emitted by the fluorescence will be transmitted to the lens 15 again, and the light signal intensity will be enhanced by the light collecting effect of the lens 15, thereby improving the light path transmission efficiency, and then pass through the lens 15 to reach the filter 12. After filtering, the light beam of a specific wavelength is sent to the photodetector 13 to achieve temperature measurement.

[0031] In this embodiment, if Figure 2 As shown, the connecting hole 113 includes a first step hole and a second step hole, the second step hole is used to connect the first step hole and the mounting cavity 111, the diameter of the first step hole is larger than the diameter of the second step hole, the lens 15 is installed in the second step hole, the inner wall of the first step hole is provided with an internal thread, the outer wall of the joint body 21 is provided with an external thread, the joint body 21 is installed in the first step hole through the external thread and the internal thread, and the thread structure design facilitates the connection and installation of the connecting device 2 and the optical module 1.

[0032] In this embodiment, if Figure 3 As shown, an O-ring 16 is installed between the connector body 21 and the lens 15. The O-ring 16 is made of soft rubber material to prevent the connector body 21 from directly contacting the lens 15, thereby protecting the lens 15 from being scratched.

[0033] Working principle: During assembly, by moving and pressing the button 23 toward the fixing part 22, the reed 24 is in a contracted state, and then the optical fiber sensor 3 can be passed through the fixing part 22 and the button 23 and placed in the guide hole 213 to the bottom. At this time, the button 23 can be released, and the reed 24 is reset and expanded to be clamped on the outside of the optical fiber sensor 3. Then the connector body 21 is installed in the connecting hole 113 of the optical module 1 through the external thread and the internal thread to complete the assembly. The optical fiber sensor 3 is fixed by the reed locking method of the fixing part 22, the button 23 and the reed 24, which can realize quick installation and removal of the optical fiber sensor 3, which is more convenient and efficient. The operating space required for installation is small, which improves the space utilization rate, saves an optical connector component, and does not need to grind the core. The optical fiber can be cut according to actual needs, and there is no need to sort and coil the excess optical fiber, which reduces the production cost.

[0034] The above embodiments are preferred implementation schemes of the present invention. In addition, the present invention can also be implemented in other ways. Any obvious replacement without departing from the concept of the present technical solution is within the protection scope of the present invention.

Claims

1. A connecting device for an optical module, comprising an optical module (1), a connecting device (2) and an optical fiber sensor (3), characterized in that: The connecting device (2) is connected to one end of the optical module (1), and the optical fiber sensor (3) is installed in the connecting device (2). The connecting device (2) comprises a connector body (21), and the connector body (21) is provided with a first opening (211), a second opening (212), a guide hole (213) and a limit hole (214) with gradually decreasing diameters from left to right. The end of the connector body (21) away from the first opening (211) is provided with a through hole (215) communicating with the limit hole (214). One end of the optical fiber sensor (3) passes through the first opening (211) and the second opening (212) and is placed in the guide hole (213) and is installed through a quick-release locking assembly, and the quick-release locking assembly is installed in the first opening (211).

2. The optical module connection device according to claim 1, characterized in that: The quick-release locking assembly comprises a fixing member (22) fixedly connected to the first opening (211), a button (23) connected to one side of the fixing member (22), and a spring (24) arranged between the fixing member (22) and the button (23); a through hole for the optical fiber sensor (3) to pass through is provided at the center of the fixing member (22) and the button (23); the button (23) and the fixing member (22) are slidably matched; when the button (23) is not subjected to force, the spring (24) is in an expanded state for clamping on the outside of the optical fiber sensor (3); when the button (23) is subjected to force and moves toward the fixing member (22), the spring (24) is in a contracted state and is separated from the optical fiber sensor (3).

3. The optical module connection device according to claim 2, characterized in that: One end of the button (23) extends to the outside of the connector body (21) and is provided with an annular pressing ring.

4. The optical module connection device according to claim 1, characterized in that: The first opening (211), the second opening (212), the guide hole (213), the limiting hole (214) and the through hole (215) are all symmetrically distributed along the central axis of the joint body (21).

5. The optical module connection device according to claim 1, characterized in that: The optical module (1) comprises a module body (11), a mounting cavity (111) is provided inside the module body (11), a filter (12) is installed inside the mounting cavity (111), a photodetector (13) is installed on an inner wall of one side of the mounting cavity (111), a mounting hole (112) is provided at the bottom end of the module body (11), a light emitting diode (14) is installed in the mounting hole (112), the light emitting diode (14) and the filter (12) are located at corresponding positions, a connecting hole (113) communicating with the mounting cavity (111) is provided on a side of the module body (11) away from the photodetector (13), a lens (15) is installed in the connecting hole (113), and the connecting device (2) is installed in the connecting hole (113).

6. The optical module connection device according to claim 5, characterized in that: The connecting hole (113) comprises a first stepped hole and a second stepped hole, the second stepped hole being used to connect the first stepped hole and the mounting cavity (111), the diameter of the first stepped hole being larger than the diameter of the second stepped hole, the lens (15) being mounted in the second stepped hole, the inner wall of the first stepped hole being provided with an internal thread, the outer wall of the joint body (21) being provided with an external thread, and the joint body (21) being mounted in the first stepped hole via the external thread and the internal thread.

7. The optical module connection device according to claim 6, characterized in that: An O-type sealing ring (16) is installed between the joint body (21) and the lens (15).

8. The optical module connection device according to claim 5, characterized in that: A strip-shaped hole is provided in the installation cavity (111), and the filter (12) is installed in the strip-shaped hole, with the filter (12) forming an angle of 45° with the horizontal plane.

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