Optical fiber connection detection device and laser

Abstract

The utility model provides an optical fiber connection detection device and a laser. The optical fiber connection detection device comprises an optical fiber connector and a photoelectric sensor. The optical fiber connector comprises a connecting device and an optical fiber joint. The photoelectric sensor comprises a light emitter and a light receiver which are arranged separately, the light emitter and the light receiver are arranged on the two sides of the connecting device respectively, and detection light emitted by the light emitter is adjacent to the contact end face of the connecting device; the probe light is shielded under the condition that the end face of the optical fiber connector is butted with the contact end face, and the probe light is not shielded under the condition that the end face of the optical fiber connector is not butted with the contact end face; the output end of the photoelectric sensor is connected with a controller of the laser. According to the embodiment of the utility model, the photoelectric sensor is used for detecting the condition that the optical fiber is inserted in place, a mechanical elastic sheet structure in the prior art is not used, the problems of mechanical elastic sheet switch abrasion, pressing ring friction contact and the like are solved, and the cleanliness of the laser output interface is ensured.

Description

Technical Field

[0001] This utility model relates to the field of laser fiber installation technology, and more specifically, to a fiber optic connection detection device and a laser. Background Technology

[0002] If the treatment fiber optic cable is not installed or is installed incorrectly during the use of laser medical equipment, it can easily injure people and pose a safety hazard. Therefore, ensuring that the treatment fiber optic cable is installed properly is an important issue that needs attention.

[0003] Existing patent CN205612546U discloses a laser device with fiber optic cable positioning detection function. This laser device includes a laser, a pressure ring between the fiber optic connector and the laser's flange, and a proximity switch with a reed. During the coupling connection of the fiber optic connector and the flange, the pressure ring moves towards the flange, pressing down the reed (in a depressed state if the fiber optic cable is not successfully installed, it is in a pop-up state), thus activating the proximity switch (in an open state if the fiber optic cable is not successfully installed). The on or off state of the proximity switch indicates whether the fiber optic cable installation is successful or unsuccessful, thereby ensuring that the fiber optic cable is properly installed. This patent has the following drawbacks:

[0004] 1) Switches using mechanical spring contacts suffer from mechanical wear, which reduces their lifespan;

[0005] 2) The proximity switch needs to be pressed down or released via another pressure ring;

[0006] 3) Frictional contact between the optical fiber and the pressure ring during installation can lead to mechanical wear and powder generation, affecting the cleanliness of the laser output interface. Utility Model Content

[0007] To address the aforementioned problems, this utility model provides an optical fiber connection detection device, comprising an optical fiber connector and a photoelectric sensor; the optical fiber connector includes a connecting device and an optical fiber connector; the connecting device is connected to a laser, and the optical fiber connector accommodates an optical fiber; the photoelectric sensor includes a separately disposed emitter and a receiver, the emitter and receiver being respectively disposed on opposite sides of the connecting device, and the detection light emitted by the emitter is adjacent to the contact end face of the connecting device; when the end face of the optical fiber connector is in contact with the contact end face, the detection light is blocked; when the end face of the optical fiber connector is not in contact with the contact end face, the detection light is not blocked; the output end of the photoelectric sensor is connected to the controller of the laser.

[0008] The fiber optic connection detection device provided in this embodiment detects the insertion of the fiber optic cable using a photoelectric sensor. It does not use the mechanical spring structure of the prior art, and avoids problems such as wear of mechanical spring switches and friction contact of pressure rings, thus ensuring the cleanliness of the laser output interface.

[0009] Optionally, the connecting device includes a sleeve with a radially penetrating opening, through which the detection light emitted by the emitter enters the receiver.

[0010] In this embodiment of the invention, the emitter and receiver are located on opposite sides of the sleeve in the radial direction. The detection light passes through the radially penetrating opening (such as a hole or slit) to detect whether the fiber optic connector is installed in place, without being blocked by the sleeve.

[0011] Optionally, the connecting device further includes a flange for fixing the connecting device inside the laser.

[0012] In this embodiment of the invention, a flange is also designed for fixing to other equipment or components, which is used to fix the connecting device inside the laser.

[0013] Optionally, the fiber optic connector includes a ferrule that accommodates the optical fiber, and the ferrule is inserted into the sleeve when the end face of the fiber optic connector is in contact with the contact end face.

[0014] In this embodiment of the invention, a sleeve and ferrule can be used to connect optical fibers, ensuring a detachable connection between optical fibers and enabling fiber splicing.

[0015] Optionally, the connection device includes a first fixing component, and the optical fiber connector includes a second fixing component that matches the first fixing component; the first fixing component and the second fixing component lock together when the end face of the optical fiber connector is in contact with the contact end face.

[0016] In this embodiment of the invention, both the connecting device and the fiber optic connector are provided with fixing components for stable fixation of both.

[0017] Optionally, the connecting device is connected to the laser coupling module of the laser and is embedded within the laser coupling module.

[0018] In this embodiment of the invention, the connecting device is embedded in the laser coupling module of the laser, which can achieve stable connection and save space.

[0019] Optionally, when the detection light is blocked, the output terminal of the photoelectric sensor outputs a low-level signal; when the detection light is not blocked, the output terminal of the photoelectric sensor outputs a high-level signal.

[0020] In this embodiment of the invention, the photoelectric sensor outputs different level signals depending on whether the fiber is blocked or not, thereby detecting whether the fiber installation was successful.

[0021] Optionally, the low-level signal is 0V and the high-level signal is 24V.

[0022] This utility model provides exemplary examples of specific voltage values ​​for high and low levels, which can effectively distinguish between different signals.

[0023] This utility model provides a laser, including the aforementioned fiber optic connection detection device and controller; the output terminal of the photoelectric sensor outputs a low-level signal or a high-level signal to the controller, and the controller determines whether the fiber optic cable is installed in place based on the low-level signal or the high-level signal.

[0024] Optionally, it also includes a human-computer interaction module, which is used to display the result of the fiber optic cable installation in place.

[0025] The laser provided in this embodiment of the invention can achieve the same technical effect as the fiber optic connection detection device described above. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0027] Figure 1 A top view of the fiber optic connection detection device provided in an embodiment of this utility model;

[0028] Figure 2 A front view of the fiber optic connection detection device provided in an embodiment of this utility model;

[0029] Figure 3 A schematic diagram illustrating the principle of laser fiber connection detection provided in this embodiment of the utility model;

[0030] Figure 4 A pin diagram of the photoelectric sensor provided in an embodiment of this utility model;

[0031] Figure 5 The internal circuit diagram of the photoelectric sensor provided in the embodiment of this utility model. Detailed Implementation

[0032] To make the above-mentioned objectives, features, and advantages of this utility model more apparent and understandable, specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of this utility model and are not intended to limit it.

[0033] This utility model provides an optical fiber connection detection device that uses a photoelectric sensor to detect whether the optical fiber is inserted in place. It eliminates the need for a mechanical spring switch, thus avoiding the wear problem of mechanical spring switches. It also eliminates the need to control the pressing or lifting of the proximity switch through a pressure ring, and there is no additional frictional contact, so it does not affect the cleanliness of the laser output interface.

[0034] In this embodiment, the fiber optic connection detection device includes a fiber optic connector and a photoelectric sensor. The fiber optic connector is used to connect the laser and the external fiber optic cable, and the photoelectric sensor is used to detect whether the external fiber optic cable is installed correctly.

[0035] Specifically, the fiber optic connector includes a connecting device and a fiber optic connector. The connecting device connects to the laser, and the fiber optic connector accommodates the optical fiber. It should be noted that the connecting device and the fiber optic connector are mating; once the fiber optic connector is inserted into the connecting device, the two are stably connected, and the accommodated optical fiber is successfully installed. For example, when the optical fiber is successfully installed, the end faces of the two optical fibers are precisely aligned.

[0036] Specifically, the photoelectric sensor includes a separately disposed emitter and a receiver. The emitter and receiver are respectively disposed on opposite sides of the connecting device, and the detection light emitted by the emitter is adjacent to the contact end face of the connecting device. For example, the contact end face may be the end face of an optical fiber within the connecting device, or the end face of another optical fiber connector housed within the connecting device.

[0037] The aforementioned positions of the emitter and receiver are designed so that the probe light is close to the contact surface of the connecting device and is not obstructed by the contact surface. Furthermore, the following conditions must be met: the probe light is blocked when the end face of the fiber optic connector is in contact with the contact surface; the probe light is not blocked when the end face of the fiber optic connector is not in contact with the contact surface. Here, the end face of the fiber optic connector being in contact with the contact surface means that the connection state meets preset optical performance requirements.

[0038] The output of the photoelectric sensor is connected to the controller of the laser.

[0039] Optionally, when the detection light is blocked, the photoelectric sensor outputs a low-level signal; when the detection light is not blocked, the photoelectric sensor outputs a high-level signal. After the photoelectric sensor outputs a low-level or high-level signal to the controller, the controller can determine whether the fiber optic cable is installed correctly based on the aforementioned low-level or high-level signal.

[0040] For example, a low-level signal is 0V, and a high-level signal is 24V.

[0041] Considering that the aforementioned connection device typically includes a sleeve, and the contact end face of the fiber optic connector may be located inside this sleeve, this embodiment can provide a radially penetrating opening on the sleeve. The detection light emitted by the emitter passes through this opening and enters the receiver. The emitter and receiver are located on opposite sides of the sleeve in the radial direction. The detection light, passing through the radially penetrating opening (e.g., a hole or slit), can detect whether the fiber optic connector is installed correctly without being obstructed by the sleeve.

[0042] Furthermore, the aforementioned connecting device also includes a flange for fixing the connecting device inside the laser. In order to fix it to other equipment or components, this embodiment also includes a flange for securing the connecting device inside the laser.

[0043] Optionally, to match the aforementioned sleeve, the fiber optic connector may include a ferrule that accommodates an optical fiber, which is inserted into the sleeve when the end face of the fiber optic connector is aligned with the contact end face. The optical fiber can be inserted into the center hole of the ferrule, and the end face of the optical fiber can be flush with the end face of the ferrule.

[0044] Optionally, both the connecting device and the fiber optic connector are provided with fixing components for stable fixation. In this embodiment, the connecting device may include a first fixing component, and the fiber optic connector may include a second fixing component that matches the first fixing component; when the end face of the fiber optic connector is aligned with the contact end face, the first fixing component and the second fixing component lock together. With the first fixing component and the second fixing component locked together, the two are stably connected, and the fiber optic cable it accommodates is successfully installed. Exemplarily, the second fixing component is a guide pin, and the first fixing component is two corresponding guide holes.

[0045] The fiber optic connection detection device provided in this embodiment detects the insertion of the fiber optic cable using a photoelectric sensor. It does not use the mechanical spring structure of the prior art, and avoids problems such as wear of mechanical spring switches and friction contact of pressure rings, thus ensuring the cleanliness of the laser output interface.

[0046] Figure 1 A top view of the fiber optic connection detection device provided in an embodiment of the present invention is shown. Figure 2 A front view of the fiber optic connection detection device provided in an embodiment of the present invention is shown. Figure 1-2 The structure of a fiber optic connection detection device is illustrated in the example. For example... Figure 1-2As shown, the laser coupling module 10 of the laser is embedded within the fiber optic connector 40. The two arms of the photoelectric sensor 20 are respectively equipped with a transmitter and a receiver. The fiber optic cable 30 is connected to the laser coupling module 10 of the laser via the fiber optic connector 40. When the fiber optic cable 30 is successfully installed, it blocks the detection light emitted by the transmitter, causing a change in the light signal received by the receiver, and consequently changing the output level signal of the photoelectric sensor.

[0047] Specifically, the aforementioned fiber optic connector can be an SMA905 fiber optic flange, and the fiber optic cable can be an SMA905 medical fiber optic cable.

[0048] After the laser is powered on, it enters a self-test to check if the laser output conditions are met. The photoelectric sensor detects this, and if the MA905 medical optical fiber is successfully connected to the SMA905 optical fiber flange, it will trigger and feed the detection signal back to the controller. This controller is, for example, a microcontroller or MCU (Microcontroller Unit).

[0049] Optionally, in this embodiment, a low level (0V) corresponds to a connection, and a high level (24V) corresponds to an unconnected connection.

[0050] Figure 3 This diagram illustrates the principle of using a laser for fiber optic connection detection according to an embodiment of the present invention. Figure 3 As shown, the photoelectric sensor is connected to the MCU, the MCU is connected to the human-machine interaction module, and the power supply provides power to the MCU.

[0051] For example, when the SMA905 medical fiber optic cable is successfully connected to the SMA905 fiber optic flange, the photoelectric sensor's beam is blocked, and it outputs a low-level (0V) signal to the MCU. The MCU performs a logic check, and the result is displayed through the human-machine interface module. At this point, after the device meets the self-test conditions, it enters the Ready State, meeting the laser output conditions.

[0052] Figure 4 A pin diagram of the photoelectric sensor provided in an embodiment of this utility model is shown. Figure 4 As shown, the photoelectric sensor includes OUT, GND, and 24V pins. When the optical fiber is installed in place, the photoelectric sensor's transmitted light is blocked, and the photoelectric sensor outputs 0V. When the optical fiber is not installed in place, the photoelectric sensor's transmitted light is normal, and the photoelectric sensor outputs 24V.

[0053] Figure 5 The diagram shows the internal circuit of the photoelectric sensor provided in an embodiment of this utility model. Figure 5As shown, taking the SE-25 model NPN through-beam photoelectric sensor as an example, the brown line a, white line b (dashed line) and black line c form two different voltage outputs: when the light is blocked, the black line c is connected and the white line b is not connected; when the light is incident, the black line c is connected and the white line b is connected to the brown line a.

[0054] This embodiment of the invention reduces two components, the pressure ring and the proximity switch, to one photoelectric sensor, avoiding the wear problem of mechanical spring switches and preventing mechanical wear and powder generation caused by frictional contact between the optical fiber and the pressure ring during installation, thus ensuring the cleanliness of the laser output interface.

[0055] This utility model embodiment provides a laser, including the above-mentioned fiber optic connection detection device and controller; the output terminal of the photoelectric sensor outputs a low-level signal or a high-level signal to the controller, and the controller determines whether the fiber optic cable is installed in place based on the low-level signal or the high-level signal.

[0056] Optionally, the laser also includes a human-computer interaction module, which is used to display the result of the fiber optic cable installation in place.

[0057] The laser provided in this embodiment of the present invention can achieve the same technical effect as the fiber optic connection detection device described above, and will not be described again here to avoid repetition.

[0058] Although the present invention has been disclosed above, it is not limited thereto. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope defined in the claims.

[0059] Finally, 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 a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0060] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A fiber optic connection detection device, characterized in that, Includes fiber optic connectors and photoelectric sensors; The fiber optic connector includes a connecting device and a fiber optic connector; the connecting device is connected to the laser, and the fiber optic connector accommodates the optical fiber. The photoelectric sensor includes a separately disposed emitter and a receiver, which are respectively disposed on both sides of the connecting device, and the detection light emitted by the emitter is adjacent to the contact end face of the connecting device; when the end face of the fiber optic connector is in contact with the contact end face, the detection light is blocked, and when the end face of the fiber optic connector is not in contact with the contact end face, the detection light is not blocked. The output of the photoelectric sensor is connected to the controller of the laser.

2. The fiber optic connection detection device according to claim 1, characterized in that, The connecting device includes a sleeve with a radially penetrating opening, through which the detection light emitted by the emitter enters the receiver.

3. The fiber optic connection detection device according to claim 2, characterized in that, The connecting device also includes a flange for fixing the connecting device inside the laser.

4. The fiber optic connection detection device according to claim 2, characterized in that, The fiber optic connector includes a ferrule that accommodates the optical fiber, and the ferrule is inserted into the sleeve when the end face of the fiber optic connector is in contact with the contact end face.

5. The fiber optic connection detection device according to claim 1, characterized in that, The connection device includes a first fixing component, and the optical fiber connector includes a second fixing component that matches the first fixing component; when the end face of the optical fiber connector is in contact with the contact end face, the first fixing component and the second fixing component are locked together.

6. The fiber optic connection detection device according to claim 1, characterized in that, The connecting device is connected to the laser coupling module of the laser and is embedded within the laser coupling module.

7. The fiber optic connection detection device according to claim 1, characterized in that, When the detection light is blocked, the output terminal of the photoelectric sensor outputs a low-level signal; when the detection light is not blocked, the output terminal of the photoelectric sensor outputs a high-level signal.

8. The fiber optic connection detection device according to claim 7, characterized in that, The low-level signal is 0V, and the high-level signal is 24V.

9. A laser, characterized in that, Includes the fiber optic connection detection device and controller as described in any one of claims 1-8; The output terminal of the photoelectric sensor outputs a low-level signal or a high-level signal to the controller, and the controller determines whether the optical fiber is installed in place based on the low-level signal or the high-level signal.

10. The laser according to claim 9, characterized in that, It also includes a human-computer interaction module, which is used to display the result of the fiber optic cable installation in place.

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